The default value can be overridden on the kernel command line
using the "ps3fb" option (e.g. "ps3fb=9M");
+if ARCH_OMAP
+ source "drivers/video/omap/Kconfig"
+endif
+
config FB_VIRTUAL
tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)"
depends on FB
obj-$(CONFIG_FB_IMAC) += imacfb.o
obj-$(CONFIG_FB_VGA16) += vga16fb.o vgastate.o
obj-$(CONFIG_FB_OF) += offb.o
+obj-$(CONFIG_FB_OMAP) += omap/ cfbcopyarea.o cfbfillrect.o cfbimgblt.o
# the test framebuffer is last
obj-$(CONFIG_FB_VIRTUAL) += vfb.o
--- /dev/null
+config FB_OMAP
+ tristate "OMAP frame buffer support (EXPERIMENTAL)"
+ depends on FB
+ help
+ Frame buffer driver for OMAP based boards.
+
+config FB_OMAP_LCDC_EXTERNAL
+ bool "External LCD controller support"
+ depends on FB_OMAP
+ help
+ Say Y here, if you want to have support for boards with an
+ external LCD controller connected to the SoSSI/RFBI interface.
+
+config FB_OMAP_LCDC_HWA742
+ bool "Epson HWA742 LCD controller support"
+ depends on FB_OMAP && FB_OMAP_LCDC_EXTERNAL
+ help
+ Say Y here if you want to have support for the external
+ Epson HWA742 LCD controller.
+
+config FB_OMAP_LCDC_BLIZZARD
+ bool "Epson Blizzard LCD controller support"
+ depends on FB_OMAP && FB_OMAP_LCDC_EXTERNAL
+ help
+ Say Y here if you want to have support for the external
+ Epson Blizzard LCD controller.
+
+config FB_OMAP_MANUAL_UPDATE
+ bool "Default to manual update mode"
+ depends on FB_OMAP && FB_OMAP_LCDC_EXTERNAL
+ help
+ Say Y here, if your user-space applications are capable of
+ notifying the frame buffer driver when a change has occured in
+ the frame buffer content and thus a reload of the image data to
+ the external frame buffer is required. If unsure, say N.
+
+config FB_OMAP_LCD_MIPID
+ bool "MIPI DBI-C/DCS compatible LCD support"
+ select SPI
+ depends on FB_OMAP
+ help
+ Say Y here if you want to have support for LCDs compatible with
+ the Mobile Industry Processor Interface DBI-C/DCS
+ specification. (Supported LCDs: Philips LPH8923, Sharp LS041Y3)
+
+config FB_OMAP_BOOTLOADER_INIT
+ bool "Check bootloader initializaion"
+ depends on FB_OMAP
+ help
+ Say Y here if you want to enable checking if the bootloader has
+ already initialized the display controller. In this case the
+ driver will skip the initialization.
+
+config FB_OMAP_CONSISTENT_DMA_SIZE
+ int "Consistent DMA memory size (MB)"
+ depends on FB_OMAP
+ range 1 14
+ default 2
+ help
+ Increase the DMA consistent memory size according to your video
+ memory needs, for example if you want to use multiple planes.
+ The size must be 2MB aligned.
+ If unsure say 1.
+
+config FB_OMAP_DMA_TUNE
+ bool "Set DMA SDRAM access priority high"
+ depends on FB_OMAP && ARCH_OMAP1
+ help
+ On systems in which video memory is in system memory
+ (SDRAM) this will speed up graphics DMA operations.
+ If you have such a system and want to use rotation
+ answer yes. Answer no if you have a dedicated video
+ memory, or don't use any of the accelerated features.
+
+
--- /dev/null
+#
+# Makefile for the new OMAP framebuffer device driver
+#
+
+obj-$(CONFIG_FB_OMAP) += omapfb.o
+
+objs-yy := omapfb_main.o
+
+objs-y$(CONFIG_ARCH_OMAP1) += lcdc.o
+objs-y$(CONFIG_ARCH_OMAP2) += dispc.o
+
+objs-$(CONFIG_ARCH_OMAP1)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += sossi.o
+objs-$(CONFIG_ARCH_OMAP2)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += rfbi.o
+
+objs-y$(CONFIG_FB_OMAP_LCDC_HWA742) += hwa742.o
+objs-y$(CONFIG_FB_OMAP_LCDC_BLIZZARD) += blizzard.o
+
+objs-y$(CONFIG_MACH_AMS_DELTA) += lcd_ams_delta.o
+objs-y$(CONFIG_MACH_OMAP_H4) += lcd_h4.o
+objs-y$(CONFIG_MACH_OMAP_H3) += lcd_h3.o
+objs-y$(CONFIG_MACH_OMAP_H2) += lcd_h2.o
+objs-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o
+objs-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o
+objs-y$(CONFIG_MACH_OMAP_PALMTT) += lcd_palmtt.o
+objs-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o
+objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o
+objs-y$(CONFIG_MACH_SX1) += lcd_sx1.o
+objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o
+objs-y$(CONFIG_MACH_OMAP_PERSEUS2) += lcd_p2.o
+objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o
+
+objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
+
+omapfb-objs := $(objs-yy)
+
--- /dev/null
+/*
+ * File: drivers/video/omap/blizzard.c
+ *
+ * Epson Blizzard LCD controller driver
+ *
+ * Copyright (C) 2004-2005 Nokia Corporation
+ * Authors: Juha Yrjola <juha.yrjola@nokia.com>
+ * Imre Deak <imre.deak@nokia.com>
+ * YUV support: Jussi Laako <jussi.laako@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+
+#include <asm/arch/dma.h>
+#include <asm/arch/omapfb.h>
+#include <asm/arch/blizzard.h>
+
+#include "dispc.h"
+
+#define MODULE_NAME "blizzard"
+
+#define BLIZZARD_REV_CODE 0x00
+#define BLIZZARD_CONFIG 0x02
+#define BLIZZARD_PLL_DIV 0x04
+#define BLIZZARD_PLL_LOCK_RANGE 0x06
+#define BLIZZARD_PLL_CLOCK_SYNTH_0 0x08
+#define BLIZZARD_PLL_CLOCK_SYNTH_1 0x0a
+#define BLIZZARD_PLL_MODE 0x0c
+#define BLIZZARD_CLK_SRC 0x0e
+#define BLIZZARD_MEM_BANK0_ACTIVATE 0x10
+#define BLIZZARD_MEM_BANK0_STATUS 0x14
+#define BLIZZARD_HDISP 0x2a
+#define BLIZZARD_HNDP 0x2c
+#define BLIZZARD_VDISP0 0x2e
+#define BLIZZARD_VDISP1 0x30
+#define BLIZZARD_VNDP 0x32
+#define BLIZZARD_HSW 0x34
+#define BLIZZARD_VSW 0x38
+#define BLIZZARD_DISPLAY_MODE 0x68
+#define BLIZZARD_INPUT_WIN_X_START_0 0x6c
+#define BLIZZARD_DATA_SOURCE_SELECT 0x8e
+#define BLIZZARD_DISP_MEM_DATA_PORT 0x90
+#define BLIZZARD_DISP_MEM_READ_ADDR0 0x92
+#define BLIZZARD_POWER_SAVE 0xE6
+#define BLIZZARD_NDISP_CTRL_STATUS 0xE8
+
+/* Data source select */
+/* For S1D13745 */
+#define BLIZZARD_SRC_WRITE_LCD_BACKGROUND 0x00
+#define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE 0x01
+#define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE 0x04
+#define BLIZZARD_SRC_DISABLE_OVERLAY 0x05
+/* For S1D13744 */
+#define BLIZZARD_SRC_WRITE_LCD 0x00
+#define BLIZZARD_SRC_BLT_LCD 0x06
+
+#define BLIZZARD_COLOR_RGB565 0x01
+#define BLIZZARD_COLOR_YUV420 0x09
+
+#define BLIZZARD_VERSION_S1D13745 0x01 /* Hailstorm */
+#define BLIZZARD_VERSION_S1D13744 0x02 /* Blizzard */
+
+#define BLIZZARD_AUTO_UPDATE_TIME (HZ / 20)
+
+/* Reserve 4 request slots for requests in irq context */
+#define REQ_POOL_SIZE 24
+#define IRQ_REQ_POOL_SIZE 4
+
+#define REQ_FROM_IRQ_POOL 0x01
+
+#define REQ_COMPLETE 0
+#define REQ_PENDING 1
+
+struct blizzard_reg_list {
+ int start;
+ int end;
+};
+
+/* These need to be saved / restored separately from the rest. */
+static struct blizzard_reg_list blizzard_pll_regs[] = {
+ {
+ .start = 0x04, /* Don't save PLL ctrl (0x0C) */
+ .end = 0x0a,
+ },
+ {
+ .start = 0x0e, /* Clock configuration */
+ .end = 0x0e,
+ },
+};
+
+static struct blizzard_reg_list blizzard_gen_regs[] = {
+ {
+ .start = 0x18, /* SDRAM control */
+ .end = 0x20,
+ },
+ {
+ .start = 0x28, /* LCD Panel configuration */
+ .end = 0x5a, /* HSSI interface, TV configuration */
+ },
+};
+
+static u8 blizzard_reg_cache[0x5a / 2];
+
+struct update_param {
+ int plane;
+ int x, y, width, height;
+ int out_x, out_y;
+ int out_width, out_height;
+ int color_mode;
+ int bpp;
+ int flags;
+};
+
+struct blizzard_request {
+ struct list_head entry;
+ unsigned int flags;
+
+ int (*handler)(struct blizzard_request *req);
+ void (*complete)(void *data);
+ void *complete_data;
+
+ union {
+ struct update_param update;
+ struct completion *sync;
+ } par;
+};
+
+struct plane_info {
+ unsigned long offset;
+ int pos_x, pos_y;
+ int width, height;
+ int out_width, out_height;
+ int scr_width;
+ int color_mode;
+ int bpp;
+};
+
+struct blizzard_struct {
+ enum omapfb_update_mode update_mode;
+ enum omapfb_update_mode update_mode_before_suspend;
+
+ struct timer_list auto_update_timer;
+ int stop_auto_update;
+ struct omapfb_update_window auto_update_window;
+ int enabled_planes;
+ int vid_nonstd_color;
+ int vid_scaled;
+ int last_color_mode;
+ int zoom_on;
+ int screen_width;
+ int screen_height;
+ unsigned te_connected:1;
+ unsigned vsync_only:1;
+
+ struct plane_info plane[OMAPFB_PLANE_NUM];
+
+ struct blizzard_request req_pool[REQ_POOL_SIZE];
+ struct list_head pending_req_list;
+ struct list_head free_req_list;
+ struct semaphore req_sema;
+ spinlock_t req_lock;
+
+ unsigned long sys_ck_rate;
+ struct extif_timings reg_timings, lut_timings;
+
+ u32 max_transmit_size;
+ u32 extif_clk_period;
+ int extif_clk_div;
+ unsigned long pix_tx_time;
+ unsigned long line_upd_time;
+
+ struct omapfb_device *fbdev;
+ struct lcd_ctrl_extif *extif;
+ struct lcd_ctrl *int_ctrl;
+
+ void (*power_up)(struct device *dev);
+ void (*power_down)(struct device *dev);
+
+ int version;
+} blizzard;
+
+struct lcd_ctrl blizzard_ctrl;
+
+static u8 blizzard_read_reg(u8 reg)
+{
+ u8 data;
+
+ blizzard.extif->set_bits_per_cycle(8);
+ blizzard.extif->write_command(®, 1);
+ blizzard.extif->read_data(&data, 1);
+
+ return data;
+}
+
+static void blizzard_write_reg(u8 reg, u8 val)
+{
+ blizzard.extif->set_bits_per_cycle(8);
+ blizzard.extif->write_command(®, 1);
+ blizzard.extif->write_data(&val, 1);
+}
+
+static void blizzard_restart_sdram(void)
+{
+ unsigned long tmo;
+
+ blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0);
+ udelay(50);
+ blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 1);
+ tmo = jiffies + msecs_to_jiffies(200);
+ while (!(blizzard_read_reg(BLIZZARD_MEM_BANK0_STATUS) & 0x01)) {
+ if (time_after(jiffies, tmo)) {
+ dev_err(blizzard.fbdev->dev,
+ "s1d1374x: SDRAM not ready");
+ break;
+ }
+ msleep(1);
+ }
+}
+
+static void blizzard_stop_sdram(void)
+{
+ blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0);
+}
+
+/* Wait until the last window was completely written into the controllers
+ * SDRAM and we can start transferring the next window.
+ */
+static void blizzard_wait_line_buffer(void)
+{
+ unsigned long tmo = jiffies + msecs_to_jiffies(30);
+
+ while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 7)) {
+ if (time_after(jiffies, tmo)) {
+ if (printk_ratelimit())
+ dev_err(blizzard.fbdev->dev,
+ "s1d1374x: line buffer not ready\n");
+ break;
+ }
+ }
+}
+
+/* Wait until the YYC color space converter is idle. */
+static void blizzard_wait_yyc(void)
+{
+ unsigned long tmo = jiffies + msecs_to_jiffies(30);
+
+ while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 4)) {
+ if (time_after(jiffies, tmo)) {
+ if (printk_ratelimit())
+ dev_err(blizzard.fbdev->dev,
+ "s1d1374x: YYC not ready\n");
+ break;
+ }
+ }
+}
+
+static void disable_overlay(void)
+{
+ blizzard_write_reg(BLIZZARD_DATA_SOURCE_SELECT,
+ BLIZZARD_SRC_DISABLE_OVERLAY);
+}
+
+static void set_window_regs(int x_start, int y_start, int x_end, int y_end,
+ int x_out_start, int y_out_start,
+ int x_out_end, int y_out_end, int color_mode,
+ int zoom_off, int flags)
+{
+ u8 tmp[18];
+ u8 cmd;
+
+ x_end--;
+ y_end--;
+ tmp[0] = x_start;
+ tmp[1] = x_start >> 8;
+ tmp[2] = y_start;
+ tmp[3] = y_start >> 8;
+ tmp[4] = x_end;
+ tmp[5] = x_end >> 8;
+ tmp[6] = y_end;
+ tmp[7] = y_end >> 8;
+
+ x_out_end--;
+ y_out_end--;
+ tmp[8] = x_out_start;
+ tmp[9] = x_out_start >> 8;
+ tmp[10] = y_out_start;
+ tmp[11] = y_out_start >> 8;
+ tmp[12] = x_out_end;
+ tmp[13] = x_out_end >> 8;
+ tmp[14] = y_out_end;
+ tmp[15] = y_out_end >> 8;
+
+ tmp[16] = color_mode;
+ if (zoom_off && blizzard.version == BLIZZARD_VERSION_S1D13745)
+ tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND;
+ else if (flags & OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY)
+ tmp[17] = BLIZZARD_SRC_WRITE_OVERLAY_ENABLE;
+ else
+ tmp[17] = blizzard.version == BLIZZARD_VERSION_S1D13744 ?
+ BLIZZARD_SRC_WRITE_LCD :
+ BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE;
+
+ blizzard.extif->set_bits_per_cycle(8);
+ cmd = BLIZZARD_INPUT_WIN_X_START_0;
+ blizzard.extif->write_command(&cmd, 1);
+ blizzard.extif->write_data(tmp, 18);
+}
+
+static void enable_tearsync(int y, int width, int height, int screen_height,
+ int out_height, int force_vsync)
+{
+ u8 b;
+
+ b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
+ b |= 1 << 3;
+ blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b);
+
+ if (likely(blizzard.vsync_only || force_vsync)) {
+ blizzard.extif->enable_tearsync(1, 0);
+ return;
+ }
+
+ if (width * blizzard.pix_tx_time < blizzard.line_upd_time) {
+ blizzard.extif->enable_tearsync(1, 0);
+ return;
+ }
+
+ if ((width * blizzard.pix_tx_time / 1000) * height <
+ (y + out_height) * (blizzard.line_upd_time / 1000)) {
+ blizzard.extif->enable_tearsync(1, 0);
+ return;
+ }
+
+ blizzard.extif->enable_tearsync(1, y + 1);
+}
+
+static void disable_tearsync(void)
+{
+ u8 b;
+
+ blizzard.extif->enable_tearsync(0, 0);
+ b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
+ b &= ~(1 << 3);
+ blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b);
+ b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
+}
+
+static inline void set_extif_timings(const struct extif_timings *t);
+
+static inline struct blizzard_request *alloc_req(void)
+{
+ unsigned long flags;
+ struct blizzard_request *req;
+ int req_flags = 0;
+
+ if (!in_interrupt())
+ down(&blizzard.req_sema);
+ else
+ req_flags = REQ_FROM_IRQ_POOL;
+
+ spin_lock_irqsave(&blizzard.req_lock, flags);
+ BUG_ON(list_empty(&blizzard.free_req_list));
+ req = list_entry(blizzard.free_req_list.next,
+ struct blizzard_request, entry);
+ list_del(&req->entry);
+ spin_unlock_irqrestore(&blizzard.req_lock, flags);
+
+ INIT_LIST_HEAD(&req->entry);
+ req->flags = req_flags;
+
+ return req;
+}
+
+static inline void free_req(struct blizzard_request *req)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&blizzard.req_lock, flags);
+
+ list_del(&req->entry);
+ list_add(&req->entry, &blizzard.free_req_list);
+ if (!(req->flags & REQ_FROM_IRQ_POOL))
+ up(&blizzard.req_sema);
+
+ spin_unlock_irqrestore(&blizzard.req_lock, flags);
+}
+
+static void process_pending_requests(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&blizzard.req_lock, flags);
+
+ while (!list_empty(&blizzard.pending_req_list)) {
+ struct blizzard_request *req;
+ void (*complete)(void *);
+ void *complete_data;
+
+ req = list_entry(blizzard.pending_req_list.next,
+ struct blizzard_request, entry);
+ spin_unlock_irqrestore(&blizzard.req_lock, flags);
+
+ if (req->handler(req) == REQ_PENDING)
+ return;
+
+ complete = req->complete;
+ complete_data = req->complete_data;
+ free_req(req);
+
+ if (complete)
+ complete(complete_data);
+
+ spin_lock_irqsave(&blizzard.req_lock, flags);
+ }
+
+ spin_unlock_irqrestore(&blizzard.req_lock, flags);
+}
+
+static void submit_req_list(struct list_head *head)
+{
+ unsigned long flags;
+ int process = 1;
+
+ spin_lock_irqsave(&blizzard.req_lock, flags);
+ if (likely(!list_empty(&blizzard.pending_req_list)))
+ process = 0;
+ list_splice_init(head, blizzard.pending_req_list.prev);
+ spin_unlock_irqrestore(&blizzard.req_lock, flags);
+
+ if (process)
+ process_pending_requests();
+}
+
+static void request_complete(void *data)
+{
+ struct blizzard_request *req = (struct blizzard_request *)data;
+ void (*complete)(void *);
+ void *complete_data;
+
+ complete = req->complete;
+ complete_data = req->complete_data;
+
+ free_req(req);
+
+ if (complete)
+ complete(complete_data);
+
+ process_pending_requests();
+}
+
+
+static int do_full_screen_update(struct blizzard_request *req)
+{
+ int i;
+ int flags;
+
+ for (i = 0; i < 3; i++) {
+ struct plane_info *p = &blizzard.plane[i];
+ if (!(blizzard.enabled_planes & (1 << i))) {
+ blizzard.int_ctrl->enable_plane(i, 0);
+ continue;
+ }
+ dev_dbg(blizzard.fbdev->dev, "pw %d ph %d\n",
+ p->width, p->height);
+ blizzard.int_ctrl->setup_plane(i,
+ OMAPFB_CHANNEL_OUT_LCD, p->offset,
+ p->scr_width, p->pos_x, p->pos_y,
+ p->width, p->height,
+ p->color_mode);
+ blizzard.int_ctrl->enable_plane(i, 1);
+ }
+
+ dev_dbg(blizzard.fbdev->dev, "sw %d sh %d\n",
+ blizzard.screen_width, blizzard.screen_height);
+ blizzard_wait_line_buffer();
+ flags = req->par.update.flags;
+ if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC)
+ enable_tearsync(0, blizzard.screen_width,
+ blizzard.screen_height,
+ blizzard.screen_height,
+ blizzard.screen_height,
+ flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC);
+ else
+ disable_tearsync();
+
+ set_window_regs(0, 0, blizzard.screen_width, blizzard.screen_height,
+ 0, 0, blizzard.screen_width, blizzard.screen_height,
+ BLIZZARD_COLOR_RGB565, blizzard.zoom_on, flags);
+ blizzard.zoom_on = 0;
+
+ blizzard.extif->set_bits_per_cycle(16);
+ /* set_window_regs has left the register index at the right
+ * place, so no need to set it here.
+ */
+ blizzard.extif->transfer_area(blizzard.screen_width,
+ blizzard.screen_height,
+ request_complete, req);
+ return REQ_PENDING;
+}
+
+/* Setup all planes with an overlapping area with the update window. */
+static int do_partial_update(struct blizzard_request *req, int plane,
+ int x, int y, int w, int h,
+ int x_out, int y_out, int w_out, int h_out,
+ int wnd_color_mode, int bpp)
+{
+ int i;
+ int gx1, gy1, gx2, gy2;
+ int gx1_out, gy1_out, gx2_out, gy2_out;
+ int color_mode;
+ int flags;
+ int zoom_off;
+
+ /* Global coordinates, relative to pixel 0,0 of the LCD */
+ gx1 = x + blizzard.plane[plane].pos_x;
+ gy1 = y + blizzard.plane[plane].pos_y;
+ gx2 = gx1 + w;
+ gy2 = gy1 + h;
+
+ flags = req->par.update.flags;
+ if (flags & OMAPFB_FORMAT_FLAG_DOUBLE) {
+ gx1_out = gx1;
+ gy1_out = gy1;
+ gx2_out = gx1 + w * 2;
+ gy2_out = gy1 + h * 2;
+ } else {
+ gx1_out = x_out + blizzard.plane[plane].pos_x;
+ gy1_out = y_out + blizzard.plane[plane].pos_y;
+ gx2_out = gx1_out + w_out;
+ gy2_out = gy1_out + h_out;
+ }
+ zoom_off = blizzard.zoom_on && gx1 == 0 && gy1 == 0 &&
+ w == blizzard.screen_width && h == blizzard.screen_height;
+ blizzard.zoom_on = (!zoom_off && blizzard.zoom_on) ||
+ (w < w_out || h < h_out);
+
+ for (i = 0; i < OMAPFB_PLANE_NUM; i++) {
+ struct plane_info *p = &blizzard.plane[i];
+ int px1, py1;
+ int px2, py2;
+ int pw, ph;
+ int pposx, pposy;
+ unsigned long offset;
+
+ if (!(blizzard.enabled_planes & (1 << i)) ||
+ (wnd_color_mode && i != plane)) {
+ blizzard.int_ctrl->enable_plane(i, 0);
+ continue;
+ }
+ /* Plane coordinates */
+ if (i == plane) {
+ /* Plane in which we are doing the update.
+ * Local coordinates are the one in the update
+ * request.
+ */
+ px1 = x;
+ py1 = y;
+ px2 = x + w;
+ py2 = y + h;
+ pposx = 0;
+ pposy = 0;
+ } else {
+ /* Check if this plane has an overlapping part */
+ px1 = gx1 - p->pos_x;
+ py1 = gy1 - p->pos_y;
+ px2 = gx2 - p->pos_x;
+ py2 = gy2 - p->pos_y;
+ if (px1 >= p->width || py1 >= p->height ||
+ px2 <= 0 || py2 <= 0) {
+ blizzard.int_ctrl->enable_plane(i, 0);
+ continue;
+ }
+ /* Calculate the coordinates for the overlapping
+ * part in the plane's local coordinates.
+ */
+ pposx = -px1;
+ pposy = -py1;
+ if (px1 < 0)
+ px1 = 0;
+ if (py1 < 0)
+ py1 = 0;
+ if (px2 > p->width)
+ px2 = p->width;
+ if (py2 > p->height)
+ py2 = p->height;
+ if (pposx < 0)
+ pposx = 0;
+ if (pposy < 0)
+ pposy = 0;
+ }
+ pw = px2 - px1;
+ ph = py2 - py1;
+ offset = p->offset + (p->scr_width * py1 + px1) * p->bpp / 8;
+ if (wnd_color_mode)
+ /* Window embedded in the plane with a differing
+ * color mode / bpp. Calculate the number of DMA
+ * transfer elements in terms of the plane's bpp.
+ */
+ pw = (pw + 1) * bpp / p->bpp;
+#ifdef VERBOSE
+ dev_dbg(blizzard.fbdev->dev,
+ "plane %d offset %#08lx pposx %d pposy %d "
+ "px1 %d py1 %d pw %d ph %d\n",
+ i, offset, pposx, pposy, px1, py1, pw, ph);
+#endif
+ blizzard.int_ctrl->setup_plane(i,
+ OMAPFB_CHANNEL_OUT_LCD, offset,
+ p->scr_width,
+ pposx, pposy, pw, ph,
+ p->color_mode);
+
+ blizzard.int_ctrl->enable_plane(i, 1);
+ }
+
+ switch (wnd_color_mode) {
+ case OMAPFB_COLOR_YUV420:
+ color_mode = BLIZZARD_COLOR_YUV420;
+ /* Currently only the 16 bits/pixel cycle format is
+ * supported on the external interface. Adjust the number
+ * of transfer elements per line for 12bpp format.
+ */
+ w = (w + 1) * 3 / 4;
+ break;
+ default:
+ color_mode = BLIZZARD_COLOR_RGB565;
+ break;
+ }
+
+ blizzard_wait_line_buffer();
+ if (blizzard.last_color_mode == BLIZZARD_COLOR_YUV420)
+ blizzard_wait_yyc();
+ blizzard.last_color_mode = color_mode;
+ if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC)
+ enable_tearsync(gy1, w, h,
+ blizzard.screen_height,
+ h_out,
+ flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC);
+ else
+ disable_tearsync();
+
+ set_window_regs(gx1, gy1, gx2, gy2, gx1_out, gy1_out, gx2_out, gy2_out,
+ color_mode, zoom_off, flags);
+
+ blizzard.extif->set_bits_per_cycle(16);
+ /* set_window_regs has left the register index at the right
+ * place, so no need to set it here.
+ */
+ blizzard.extif->transfer_area(w, h, request_complete, req);
+
+ return REQ_PENDING;
+}
+
+static int send_frame_handler(struct blizzard_request *req)
+{
+ struct update_param *par = &req->par.update;
+ int plane = par->plane;
+
+#ifdef VERBOSE
+ dev_dbg(blizzard.fbdev->dev,
+ "send_frame: x %d y %d w %d h %d "
+ "x_out %d y_out %d w_out %d h_out %d "
+ "color_mode %04x flags %04x planes %01x\n",
+ par->x, par->y, par->width, par->height,
+ par->out_x, par->out_y, par->out_width, par->out_height,
+ par->color_mode, par->flags, blizzard.enabled_planes);
+#endif
+ if (par->flags & OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY)
+ disable_overlay();
+
+ if ((blizzard.enabled_planes & blizzard.vid_nonstd_color) ||
+ (blizzard.enabled_planes & blizzard.vid_scaled))
+ return do_full_screen_update(req);
+
+ return do_partial_update(req, plane, par->x, par->y,
+ par->width, par->height,
+ par->out_x, par->out_y,
+ par->out_width, par->out_height,
+ par->color_mode, par->bpp);
+}
+
+static void send_frame_complete(void *data)
+{
+}
+
+#define ADD_PREQ(_x, _y, _w, _h, _x_out, _y_out, _w_out, _h_out) do { \
+ req = alloc_req(); \
+ req->handler = send_frame_handler; \
+ req->complete = send_frame_complete; \
+ req->par.update.plane = plane_idx; \
+ req->par.update.x = _x; \
+ req->par.update.y = _y; \
+ req->par.update.width = _w; \
+ req->par.update.height = _h; \
+ req->par.update.out_x = _x_out; \
+ req->par.update.out_y = _y_out; \
+ req->par.update.out_width = _w_out; \
+ req->par.update.out_height = _h_out; \
+ req->par.update.bpp = bpp; \
+ req->par.update.color_mode = color_mode;\
+ req->par.update.flags = flags; \
+ list_add_tail(&req->entry, req_head); \
+} while(0)
+
+static void create_req_list(int plane_idx,
+ struct omapfb_update_window *win,
+ struct list_head *req_head)
+{
+ struct blizzard_request *req;
+ int x = win->x;
+ int y = win->y;
+ int width = win->width;
+ int height = win->height;
+ int x_out = win->out_x;
+ int y_out = win->out_y;
+ int width_out = win->out_width;
+ int height_out = win->out_height;
+ int color_mode;
+ int bpp;
+ int flags;
+ unsigned int ystart = y;
+ unsigned int yspan = height;
+ unsigned int ystart_out = y_out;
+ unsigned int yspan_out = height_out;
+
+ flags = win->format & ~OMAPFB_FORMAT_MASK;
+ color_mode = win->format & OMAPFB_FORMAT_MASK;
+ switch (color_mode) {
+ case OMAPFB_COLOR_YUV420:
+ /* Embedded window with different color mode */
+ bpp = 12;
+ /* X, Y, height must be aligned at 2, width at 4 pixels */
+ x &= ~1;
+ y &= ~1;
+ height = yspan = height & ~1;
+ width = width & ~3;
+ break;
+ default:
+ /* Same as the plane color mode */
+ bpp = blizzard.plane[plane_idx].bpp;
+ break;
+ }
+ if (width * height * bpp / 8 > blizzard.max_transmit_size) {
+ yspan = blizzard.max_transmit_size / (width * bpp / 8);
+ yspan_out = yspan * height_out / height;
+ ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out,
+ width_out, yspan_out);
+ ystart += yspan;
+ ystart_out += yspan_out;
+ yspan = height - yspan;
+ yspan_out = height_out - yspan_out;
+ flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
+ }
+
+ ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out,
+ width_out, yspan_out);
+}
+
+static void auto_update_complete(void *data)
+{
+ if (!blizzard.stop_auto_update)
+ mod_timer(&blizzard.auto_update_timer,
+ jiffies + BLIZZARD_AUTO_UPDATE_TIME);
+}
+
+static void blizzard_update_window_auto(unsigned long arg)
+{
+ LIST_HEAD(req_list);
+ struct blizzard_request *last;
+ struct omapfb_plane_struct *plane;
+
+ plane = blizzard.fbdev->fb_info[0]->par;
+ create_req_list(plane->idx,
+ &blizzard.auto_update_window, &req_list);
+ last = list_entry(req_list.prev, struct blizzard_request, entry);
+
+ last->complete = auto_update_complete;
+ last->complete_data = NULL;
+
+ submit_req_list(&req_list);
+}
+
+int blizzard_update_window_async(struct fb_info *fbi,
+ struct omapfb_update_window *win,
+ void (*complete_callback)(void *arg),
+ void *complete_callback_data)
+{
+ LIST_HEAD(req_list);
+ struct blizzard_request *last;
+ struct omapfb_plane_struct *plane = fbi->par;
+
+ if (unlikely(blizzard.update_mode != OMAPFB_MANUAL_UPDATE))
+ return -EINVAL;
+ if (unlikely(!blizzard.te_connected &&
+ (win->format & OMAPFB_FORMAT_FLAG_TEARSYNC)))
+ return -EINVAL;
+
+ create_req_list(plane->idx, win, &req_list);
+ last = list_entry(req_list.prev, struct blizzard_request, entry);
+
+ last->complete = complete_callback;
+ last->complete_data = (void *)complete_callback_data;
+
+ submit_req_list(&req_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(blizzard_update_window_async);
+
+static int update_full_screen(void)
+{
+ return blizzard_update_window_async(blizzard.fbdev->fb_info[0],
+ &blizzard.auto_update_window, NULL, NULL);
+
+}
+
+static int blizzard_setup_plane(int plane, int channel_out,
+ unsigned long offset, int screen_width,
+ int pos_x, int pos_y, int width, int height,
+ int color_mode)
+{
+ struct plane_info *p;
+
+#ifdef VERBOSE
+ dev_dbg(blizzard.fbdev->dev,
+ "plane %d ch_out %d offset %#08lx scr_width %d "
+ "pos_x %d pos_y %d width %d height %d color_mode %d\n",
+ plane, channel_out, offset, screen_width,
+ pos_x, pos_y, width, height, color_mode);
+#endif
+ if ((unsigned)plane > OMAPFB_PLANE_NUM)
+ return -EINVAL;
+ p = &blizzard.plane[plane];
+
+ switch (color_mode) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUY422:
+ p->bpp = 16;
+ blizzard.vid_nonstd_color &= ~(1 << plane);
+ break;
+ case OMAPFB_COLOR_YUV420:
+ p->bpp = 12;
+ blizzard.vid_nonstd_color |= 1 << plane;
+ break;
+ case OMAPFB_COLOR_RGB565:
+ p->bpp = 16;
+ blizzard.vid_nonstd_color &= ~(1 << plane);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ p->offset = offset;
+ p->pos_x = pos_x;
+ p->pos_y = pos_y;
+ p->width = width;
+ p->height = height;
+ p->scr_width = screen_width;
+ if (!p->out_width)
+ p->out_width = width;
+ if (!p->out_height)
+ p->out_height = height;
+
+ p->color_mode = color_mode;
+
+ return 0;
+}
+
+static int blizzard_set_scale(int plane, int orig_w, int orig_h,
+ int out_w, int out_h)
+{
+ struct plane_info *p = &blizzard.plane[plane];
+ int r;
+
+ dev_dbg(blizzard.fbdev->dev,
+ "plane %d orig_w %d orig_h %d out_w %d out_h %d\n",
+ plane, orig_w, orig_h, out_w, out_h);
+ if ((unsigned)plane > OMAPFB_PLANE_NUM)
+ return -ENODEV;
+
+ r = blizzard.int_ctrl->set_scale(plane, orig_w, orig_h, out_w, out_h);
+ if (r < 0)
+ return r;
+
+ p->width = orig_w;
+ p->height = orig_h;
+ p->out_width = out_w;
+ p->out_height = out_h;
+ if (orig_w == out_w && orig_h == out_h)
+ blizzard.vid_scaled &= ~(1 << plane);
+ else
+ blizzard.vid_scaled |= 1 << plane;
+
+ return 0;
+}
+
+static int blizzard_enable_plane(int plane, int enable)
+{
+ if (enable)
+ blizzard.enabled_planes |= 1 << plane;
+ else
+ blizzard.enabled_planes &= ~(1 << plane);
+
+ return 0;
+}
+
+static int sync_handler(struct blizzard_request *req)
+{
+ complete(req->par.sync);
+ return REQ_COMPLETE;
+}
+
+static void blizzard_sync(void)
+{
+ LIST_HEAD(req_list);
+ struct blizzard_request *req;
+ struct completion comp;
+
+ req = alloc_req();
+
+ req->handler = sync_handler;
+ req->complete = NULL;
+ init_completion(&comp);
+ req->par.sync = ∁
+
+ list_add(&req->entry, &req_list);
+ submit_req_list(&req_list);
+
+ wait_for_completion(&comp);
+}
+
+
+static void blizzard_bind_client(struct omapfb_notifier_block *nb)
+{
+ if (blizzard.update_mode == OMAPFB_MANUAL_UPDATE) {
+ omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY);
+ }
+}
+
+static int blizzard_set_update_mode(enum omapfb_update_mode mode)
+{
+ if (unlikely(mode != OMAPFB_MANUAL_UPDATE &&
+ mode != OMAPFB_AUTO_UPDATE &&
+ mode != OMAPFB_UPDATE_DISABLED))
+ return -EINVAL;
+
+ if (mode == blizzard.update_mode)
+ return 0;
+
+ dev_info(blizzard.fbdev->dev, "s1d1374x: setting update mode to %s\n",
+ mode == OMAPFB_UPDATE_DISABLED ? "disabled" :
+ (mode == OMAPFB_AUTO_UPDATE ? "auto" : "manual"));
+
+ switch (blizzard.update_mode) {
+ case OMAPFB_MANUAL_UPDATE:
+ omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_DISABLED);
+ break;
+ case OMAPFB_AUTO_UPDATE:
+ blizzard.stop_auto_update = 1;
+ del_timer_sync(&blizzard.auto_update_timer);
+ break;
+ case OMAPFB_UPDATE_DISABLED:
+ break;
+ }
+
+ blizzard.update_mode = mode;
+ blizzard_sync();
+ blizzard.stop_auto_update = 0;
+
+ switch (mode) {
+ case OMAPFB_MANUAL_UPDATE:
+ omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY);
+ break;
+ case OMAPFB_AUTO_UPDATE:
+ blizzard_update_window_auto(0);
+ break;
+ case OMAPFB_UPDATE_DISABLED:
+ break;
+ }
+
+ return 0;
+}
+
+static enum omapfb_update_mode blizzard_get_update_mode(void)
+{
+ return blizzard.update_mode;
+}
+
+static inline void set_extif_timings(const struct extif_timings *t)
+{
+ blizzard.extif->set_timings(t);
+}
+
+static inline unsigned long round_to_extif_ticks(unsigned long ps, int div)
+{
+ int bus_tick = blizzard.extif_clk_period * div;
+ return (ps + bus_tick - 1) / bus_tick * bus_tick;
+}
+
+static int calc_reg_timing(unsigned long sysclk, int div)
+{
+ struct extif_timings *t;
+ unsigned long systim;
+
+ /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns,
+ * AccessTime 2 ns + 12.2 ns (regs),
+ * WEOffTime = WEOnTime + 1 ns,
+ * REOffTime = REOnTime + 12 ns (regs),
+ * CSOffTime = REOffTime + 1 ns
+ * ReadCycle = 2ns + 2*SYSCLK (regs),
+ * WriteCycle = 2*SYSCLK + 2 ns,
+ * CSPulseWidth = 10 ns */
+
+ systim = 1000000000 / (sysclk / 1000);
+ dev_dbg(blizzard.fbdev->dev,
+ "Blizzard systim %lu ps extif_clk_period %u div %d\n",
+ systim, blizzard.extif_clk_period, div);
+
+ t = &blizzard.reg_timings;
+ memset(t, 0, sizeof(*t));
+
+ t->clk_div = div;
+
+ t->cs_on_time = 0;
+ t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->access_time = round_to_extif_ticks(t->re_on_time + 12200, div);
+ t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div);
+ t->re_off_time = round_to_extif_ticks(t->re_on_time + 13000, div);
+ t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div);
+ t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
+ if (t->we_cycle_time < t->we_off_time)
+ t->we_cycle_time = t->we_off_time;
+ t->re_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
+ if (t->re_cycle_time < t->re_off_time)
+ t->re_cycle_time = t->re_off_time;
+ t->cs_pulse_width = 0;
+
+ dev_dbg(blizzard.fbdev->dev, "[reg]cson %d csoff %d reon %d reoff %d\n",
+ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
+ dev_dbg(blizzard.fbdev->dev, "[reg]weon %d weoff %d recyc %d wecyc %d\n",
+ t->we_on_time, t->we_off_time, t->re_cycle_time,
+ t->we_cycle_time);
+ dev_dbg(blizzard.fbdev->dev, "[reg]rdaccess %d cspulse %d\n",
+ t->access_time, t->cs_pulse_width);
+
+ return blizzard.extif->convert_timings(t);
+}
+
+static int calc_lut_timing(unsigned long sysclk, int div)
+{
+ struct extif_timings *t;
+ unsigned long systim;
+
+ /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns,
+ * AccessTime 2 ns + 4 * SYSCLK + 26 (lut),
+ * WEOffTime = WEOnTime + 1 ns,
+ * REOffTime = REOnTime + 4*SYSCLK + 26 ns (lut),
+ * CSOffTime = REOffTime + 1 ns
+ * ReadCycle = 2ns + 4*SYSCLK + 26 ns (lut),
+ * WriteCycle = 2*SYSCLK + 2 ns,
+ * CSPulseWidth = 10 ns */
+
+ systim = 1000000000 / (sysclk / 1000);
+ dev_dbg(blizzard.fbdev->dev,
+ "Blizzard systim %lu ps extif_clk_period %u div %d\n",
+ systim, blizzard.extif_clk_period, div);
+
+ t = &blizzard.lut_timings;
+ memset(t, 0, sizeof(*t));
+
+ t->clk_div = div;
+
+ t->cs_on_time = 0;
+ t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->access_time = round_to_extif_ticks(t->re_on_time + 4 * systim +
+ 26000, div);
+ t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div);
+ t->re_off_time = round_to_extif_ticks(t->re_on_time + 4 * systim +
+ 26000, div);
+ t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div);
+ t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
+ if (t->we_cycle_time < t->we_off_time)
+ t->we_cycle_time = t->we_off_time;
+ t->re_cycle_time = round_to_extif_ticks(2000 + 4 * systim + 26000, div);
+ if (t->re_cycle_time < t->re_off_time)
+ t->re_cycle_time = t->re_off_time;
+ t->cs_pulse_width = 0;
+
+ dev_dbg(blizzard.fbdev->dev,
+ "[lut]cson %d csoff %d reon %d reoff %d\n",
+ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
+ dev_dbg(blizzard.fbdev->dev,
+ "[lut]weon %d weoff %d recyc %d wecyc %d\n",
+ t->we_on_time, t->we_off_time, t->re_cycle_time,
+ t->we_cycle_time);
+ dev_dbg(blizzard.fbdev->dev, "[lut]rdaccess %d cspulse %d\n",
+ t->access_time, t->cs_pulse_width);
+
+ return blizzard.extif->convert_timings(t);
+}
+
+static int calc_extif_timings(unsigned long sysclk, int *extif_mem_div)
+{
+ int max_clk_div;
+ int div;
+
+ blizzard.extif->get_clk_info(&blizzard.extif_clk_period, &max_clk_div);
+ for (div = 1; div <= max_clk_div; div++) {
+ if (calc_reg_timing(sysclk, div) == 0)
+ break;
+ }
+ if (div > max_clk_div) {
+ dev_dbg(blizzard.fbdev->dev, "reg timing failed\n");
+ goto err;
+ }
+ *extif_mem_div = div;
+
+ for (div = 1; div <= max_clk_div; div++) {
+ if (calc_lut_timing(sysclk, div) == 0)
+ break;
+ }
+
+ if (div > max_clk_div)
+ goto err;
+
+ blizzard.extif_clk_div = div;
+
+ return 0;
+err:
+ dev_err(blizzard.fbdev->dev, "can't setup timings\n");
+ return -1;
+}
+
+static void calc_blizzard_clk_rates(unsigned long ext_clk,
+ unsigned long *sys_clk, unsigned long *pix_clk)
+{
+ int pix_clk_src;
+ int sys_div = 0, sys_mul = 0;
+ int pix_div;
+
+ pix_clk_src = blizzard_read_reg(BLIZZARD_CLK_SRC);
+ pix_div = ((pix_clk_src >> 3) & 0x1f) + 1;
+ if ((pix_clk_src & (0x3 << 1)) == 0) {
+ /* Source is the PLL */
+ sys_div = (blizzard_read_reg(BLIZZARD_PLL_DIV) & 0x3f) + 1;
+ sys_mul = blizzard_read_reg(BLIZZARD_PLL_CLOCK_SYNTH_0);
+ sys_mul |= ((blizzard_read_reg(BLIZZARD_PLL_CLOCK_SYNTH_1)
+ & 0x0f) << 11);
+ *sys_clk = ext_clk * sys_mul / sys_div;
+ } else /* else source is ext clk, or oscillator */
+ *sys_clk = ext_clk;
+
+ *pix_clk = *sys_clk / pix_div; /* HZ */
+ dev_dbg(blizzard.fbdev->dev,
+ "ext_clk %ld pix_src %d pix_div %d sys_div %d sys_mul %d\n",
+ ext_clk, pix_clk_src & (0x3 << 1), pix_div, sys_div, sys_mul);
+ dev_dbg(blizzard.fbdev->dev, "sys_clk %ld pix_clk %ld\n",
+ *sys_clk, *pix_clk);
+}
+
+static int setup_tearsync(unsigned long pix_clk, int extif_div)
+{
+ int hdisp, vdisp;
+ int hndp, vndp;
+ int hsw, vsw;
+ int hs, vs;
+ int hs_pol_inv, vs_pol_inv;
+ int use_hsvs, use_ndp;
+ u8 b;
+
+ hsw = blizzard_read_reg(BLIZZARD_HSW);
+ vsw = blizzard_read_reg(BLIZZARD_VSW);
+ hs_pol_inv = !(hsw & 0x80);
+ vs_pol_inv = !(vsw & 0x80);
+ hsw = hsw & 0x7f;
+ vsw = vsw & 0x3f;
+
+ hdisp = blizzard_read_reg(BLIZZARD_HDISP) * 8;
+ vdisp = blizzard_read_reg(BLIZZARD_VDISP0) +
+ ((blizzard_read_reg(BLIZZARD_VDISP1) & 0x3) << 8);
+
+ hndp = blizzard_read_reg(BLIZZARD_HNDP) & 0x3f;
+ vndp = blizzard_read_reg(BLIZZARD_VNDP);
+
+ /* time to transfer one pixel (16bpp) in ps */
+ blizzard.pix_tx_time = blizzard.reg_timings.we_cycle_time;
+ if (blizzard.extif->get_max_tx_rate != NULL) {
+ /* The external interface might have a rate limitation,
+ * if so, we have to maximize our transfer rate.
+ */
+ unsigned long min_tx_time;
+ unsigned long max_tx_rate = blizzard.extif->get_max_tx_rate();
+
+ dev_dbg(blizzard.fbdev->dev, "max_tx_rate %ld HZ\n",
+ max_tx_rate);
+ min_tx_time = 1000000000 / (max_tx_rate / 1000); /* ps */
+ if (blizzard.pix_tx_time < min_tx_time)
+ blizzard.pix_tx_time = min_tx_time;
+ }
+
+ /* time to update one line in ps */
+ blizzard.line_upd_time = (hdisp + hndp) * 1000000 / (pix_clk / 1000);
+ blizzard.line_upd_time *= 1000;
+ if (hdisp * blizzard.pix_tx_time > blizzard.line_upd_time)
+ /* transfer speed too low, we might have to use both
+ * HS and VS */
+ use_hsvs = 1;
+ else
+ /* decent transfer speed, we'll always use only VS */
+ use_hsvs = 0;
+
+ if (use_hsvs && (hs_pol_inv || vs_pol_inv)) {
+ /* HS or'ed with VS doesn't work, use the active high
+ * TE signal based on HNDP / VNDP */
+ use_ndp = 1;
+ hs_pol_inv = 0;
+ vs_pol_inv = 0;
+ hs = hndp;
+ vs = vndp;
+ } else {
+ /* Use HS or'ed with VS as a TE signal if both are needed
+ * or VNDP if only vsync is needed. */
+ use_ndp = 0;
+ hs = hsw;
+ vs = vsw;
+ if (!use_hsvs) {
+ hs_pol_inv = 0;
+ vs_pol_inv = 0;
+ }
+ }
+
+ hs = hs * 1000000 / (pix_clk / 1000); /* ps */
+ hs *= 1000;
+
+ vs = vs * (hdisp + hndp) * 1000000 / (pix_clk / 1000); /* ps */
+ vs *= 1000;
+
+ if (vs <= hs)
+ return -EDOM;
+ /* set VS to 120% of HS to minimize VS detection time */
+ vs = hs * 12 / 10;
+ /* minimize HS too */
+ if (hs > 10000)
+ hs = 10000;
+
+ b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS);
+ b &= ~0x3;
+ b |= use_hsvs ? 1 : 0;
+ b |= (use_ndp && use_hsvs) ? 0 : 2;
+ blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b);
+
+ blizzard.vsync_only = !use_hsvs;
+
+ dev_dbg(blizzard.fbdev->dev,
+ "pix_clk %ld HZ pix_tx_time %ld ps line_upd_time %ld ps\n",
+ pix_clk, blizzard.pix_tx_time, blizzard.line_upd_time);
+ dev_dbg(blizzard.fbdev->dev,
+ "hs %d ps vs %d ps mode %d vsync_only %d\n",
+ hs, vs, b & 0x3, !use_hsvs);
+
+ return blizzard.extif->setup_tearsync(1, hs, vs,
+ hs_pol_inv, vs_pol_inv,
+ extif_div);
+}
+
+static void blizzard_get_caps(int plane, struct omapfb_caps *caps)
+{
+ blizzard.int_ctrl->get_caps(plane, caps);
+ caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE |
+ OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE |
+ OMAPFB_CAPS_WINDOW_SCALE |
+ OMAPFB_CAPS_WINDOW_OVERLAY;
+ if (blizzard.te_connected)
+ caps->ctrl |= OMAPFB_CAPS_TEARSYNC;
+ caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) |
+ (1 << OMAPFB_COLOR_YUV420);
+}
+
+static void _save_regs(struct blizzard_reg_list *list, int cnt)
+{
+ int i;
+
+ for (i = 0; i < cnt; i++, list++) {
+ int reg;
+ for (reg = list->start; reg <= list->end; reg += 2)
+ blizzard_reg_cache[reg / 2] = blizzard_read_reg(reg);
+ }
+}
+
+static void _restore_regs(struct blizzard_reg_list *list, int cnt)
+{
+ int i;
+
+ for (i = 0; i < cnt; i++, list++) {
+ int reg;
+ for (reg = list->start; reg <= list->end; reg += 2)
+ blizzard_write_reg(reg, blizzard_reg_cache[reg / 2]);
+ }
+}
+
+static void blizzard_save_all_regs(void)
+{
+ _save_regs(blizzard_pll_regs, ARRAY_SIZE(blizzard_pll_regs));
+ _save_regs(blizzard_gen_regs, ARRAY_SIZE(blizzard_gen_regs));
+}
+
+static void blizzard_restore_pll_regs(void)
+{
+ _restore_regs(blizzard_pll_regs, ARRAY_SIZE(blizzard_pll_regs));
+}
+
+static void blizzard_restore_gen_regs(void)
+{
+ _restore_regs(blizzard_gen_regs, ARRAY_SIZE(blizzard_gen_regs));
+}
+
+static void blizzard_suspend(void)
+{
+ u32 l;
+ unsigned long tmo;
+
+ if (blizzard.last_color_mode) {
+ update_full_screen();
+ blizzard_sync();
+ }
+ blizzard.update_mode_before_suspend = blizzard.update_mode;
+ /* the following will disable clocks as well */
+ blizzard_set_update_mode(OMAPFB_UPDATE_DISABLED);
+
+ blizzard_save_all_regs();
+
+ blizzard_stop_sdram();
+
+ l = blizzard_read_reg(BLIZZARD_POWER_SAVE);
+ /* Standby, Sleep. We assume we use an external clock. */
+ l |= 0x03;
+ blizzard_write_reg(BLIZZARD_POWER_SAVE, l);
+
+ tmo = jiffies + msecs_to_jiffies(100);
+ while (!(blizzard_read_reg(BLIZZARD_PLL_MODE) & (1 << 1))) {
+ if (time_after(jiffies, tmo)) {
+ dev_err(blizzard.fbdev->dev,
+ "s1d1374x: sleep timeout, stopping PLL manually\n");
+ l = blizzard_read_reg(BLIZZARD_PLL_MODE);
+ l &= ~0x03;
+ /* Disable PLL, counter function */
+ l |= 0x2;
+ blizzard_write_reg(BLIZZARD_PLL_MODE, l);
+ break;
+ }
+ msleep(1);
+ }
+
+ if (blizzard.power_down != NULL)
+ blizzard.power_down(blizzard.fbdev->dev);
+}
+
+static void blizzard_resume(void)
+{
+ u32 l;
+
+ if (blizzard.power_up != NULL)
+ blizzard.power_up(blizzard.fbdev->dev);
+
+ l = blizzard_read_reg(BLIZZARD_POWER_SAVE);
+ /* Standby, Sleep */
+ l &= ~0x03;
+ blizzard_write_reg(BLIZZARD_POWER_SAVE, l);
+
+ blizzard_restore_pll_regs();
+ l = blizzard_read_reg(BLIZZARD_PLL_MODE);
+ l &= ~0x03;
+ /* Enable PLL, counter function */
+ l |= 0x1;
+ blizzard_write_reg(BLIZZARD_PLL_MODE, l);
+
+ while (!(blizzard_read_reg(BLIZZARD_PLL_DIV) & (1 << 7)))
+ msleep(1);
+
+ blizzard_restart_sdram();
+
+ blizzard_restore_gen_regs();
+
+ /* Enable display */
+ blizzard_write_reg(BLIZZARD_DISPLAY_MODE, 0x01);
+
+ /* the following will enable clocks as necessary */
+ blizzard_set_update_mode(blizzard.update_mode_before_suspend);
+
+ /* Force a background update */
+ blizzard.zoom_on = 1;
+ update_full_screen();
+ blizzard_sync();
+}
+
+static int blizzard_init(struct omapfb_device *fbdev, int ext_mode,
+ struct omapfb_mem_desc *req_vram)
+{
+ int r = 0, i;
+ u8 rev, conf;
+ unsigned long ext_clk;
+ int extif_div;
+ unsigned long sys_clk, pix_clk;
+ struct omapfb_platform_data *omapfb_conf;
+ struct blizzard_platform_data *ctrl_conf;
+
+ blizzard.fbdev = fbdev;
+
+ BUG_ON(!fbdev->ext_if || !fbdev->int_ctrl);
+
+ blizzard.fbdev = fbdev;
+ blizzard.extif = fbdev->ext_if;
+ blizzard.int_ctrl = fbdev->int_ctrl;
+
+ omapfb_conf = fbdev->dev->platform_data;
+ ctrl_conf = omapfb_conf->ctrl_platform_data;
+ if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) {
+ dev_err(fbdev->dev, "s1d1374x: missing platform data\n");
+ r = -ENOENT;
+ goto err1;
+ }
+
+ blizzard.power_down = ctrl_conf->power_down;
+ blizzard.power_up = ctrl_conf->power_up;
+
+ spin_lock_init(&blizzard.req_lock);
+
+ if ((r = blizzard.int_ctrl->init(fbdev, 1, req_vram)) < 0)
+ goto err1;
+
+ if ((r = blizzard.extif->init(fbdev)) < 0)
+ goto err2;
+
+ blizzard_ctrl.set_color_key = blizzard.int_ctrl->set_color_key;
+ blizzard_ctrl.get_color_key = blizzard.int_ctrl->get_color_key;
+ blizzard_ctrl.setup_mem = blizzard.int_ctrl->setup_mem;
+ blizzard_ctrl.mmap = blizzard.int_ctrl->mmap;
+
+ ext_clk = ctrl_conf->get_clock_rate(fbdev->dev);
+ if ((r = calc_extif_timings(ext_clk, &extif_div)) < 0)
+ goto err3;
+
+ set_extif_timings(&blizzard.reg_timings);
+
+ if (blizzard.power_up != NULL)
+ blizzard.power_up(fbdev->dev);
+
+ calc_blizzard_clk_rates(ext_clk, &sys_clk, &pix_clk);
+
+ if ((r = calc_extif_timings(sys_clk, &extif_div)) < 0)
+ goto err3;
+ set_extif_timings(&blizzard.reg_timings);
+
+ if (!(blizzard_read_reg(BLIZZARD_PLL_DIV) & 0x80)) {
+ dev_err(fbdev->dev,
+ "controller not initialized by the bootloader\n");
+ r = -ENODEV;
+ goto err3;
+ }
+
+ if (ctrl_conf->te_connected) {
+ if ((r = setup_tearsync(pix_clk, extif_div)) < 0)
+ goto err3;
+ blizzard.te_connected = 1;
+ }
+
+ rev = blizzard_read_reg(BLIZZARD_REV_CODE);
+ conf = blizzard_read_reg(BLIZZARD_CONFIG);
+
+ switch (rev & 0xfc) {
+ case 0x9c:
+ blizzard.version = BLIZZARD_VERSION_S1D13744;
+ pr_info("omapfb: s1d13744 LCD controller rev %d "
+ "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
+ break;
+ case 0xa4:
+ blizzard.version = BLIZZARD_VERSION_S1D13745;
+ pr_info("omapfb: s1d13745 LCD controller rev %d "
+ "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
+ break;
+ default:
+ dev_err(fbdev->dev, "invalid s1d1374x revision %02x\n",
+ rev);
+ r = -ENODEV;
+ goto err3;
+ }
+
+ blizzard.max_transmit_size = blizzard.extif->max_transmit_size;
+
+ blizzard.update_mode = OMAPFB_UPDATE_DISABLED;
+
+ blizzard.auto_update_window.x = 0;
+ blizzard.auto_update_window.y = 0;
+ blizzard.auto_update_window.width = fbdev->panel->x_res;
+ blizzard.auto_update_window.height = fbdev->panel->y_res;
+ blizzard.auto_update_window.out_x = 0;
+ blizzard.auto_update_window.out_x = 0;
+ blizzard.auto_update_window.out_width = fbdev->panel->x_res;
+ blizzard.auto_update_window.out_height = fbdev->panel->y_res;
+ blizzard.auto_update_window.format = 0;
+
+ blizzard.screen_width = fbdev->panel->x_res;
+ blizzard.screen_height = fbdev->panel->y_res;
+
+ init_timer(&blizzard.auto_update_timer);
+ blizzard.auto_update_timer.function = blizzard_update_window_auto;
+ blizzard.auto_update_timer.data = 0;
+
+ INIT_LIST_HEAD(&blizzard.free_req_list);
+ INIT_LIST_HEAD(&blizzard.pending_req_list);
+ for (i = 0; i < ARRAY_SIZE(blizzard.req_pool); i++)
+ list_add(&blizzard.req_pool[i].entry, &blizzard.free_req_list);
+ BUG_ON(i <= IRQ_REQ_POOL_SIZE);
+ sema_init(&blizzard.req_sema, i - IRQ_REQ_POOL_SIZE);
+
+ return 0;
+err3:
+ if (blizzard.power_down != NULL)
+ blizzard.power_down(fbdev->dev);
+ blizzard.extif->cleanup();
+err2:
+ blizzard.int_ctrl->cleanup();
+err1:
+ return r;
+}
+
+static void blizzard_cleanup(void)
+{
+ blizzard_set_update_mode(OMAPFB_UPDATE_DISABLED);
+ blizzard.extif->cleanup();
+ blizzard.int_ctrl->cleanup();
+ if (blizzard.power_down != NULL)
+ blizzard.power_down(blizzard.fbdev->dev);
+}
+
+struct lcd_ctrl blizzard_ctrl = {
+ .name = "blizzard",
+ .init = blizzard_init,
+ .cleanup = blizzard_cleanup,
+ .bind_client = blizzard_bind_client,
+ .get_caps = blizzard_get_caps,
+ .set_update_mode = blizzard_set_update_mode,
+ .get_update_mode = blizzard_get_update_mode,
+ .setup_plane = blizzard_setup_plane,
+ .set_scale = blizzard_set_scale,
+ .enable_plane = blizzard_enable_plane,
+ .update_window = blizzard_update_window_async,
+ .sync = blizzard_sync,
+ .suspend = blizzard_suspend,
+ .resume = blizzard_resume,
+};
+
--- /dev/null
+/*
+ * File: drivers/video/omap/omap2/dispc.c
+ *
+ * OMAP2 display controller support
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/clk.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/sram.h>
+#include <asm/arch/omapfb.h>
+#include <asm/arch/board.h>
+
+#include "dispc.h"
+
+#define MODULE_NAME "dispc"
+
+#define DSS_BASE 0x48050000
+#define DSS_SYSCONFIG 0x0010
+
+#define DISPC_BASE 0x48050400
+
+/* DISPC common */
+#define DISPC_REVISION 0x0000
+#define DISPC_SYSCONFIG 0x0010
+#define DISPC_SYSSTATUS 0x0014
+#define DISPC_IRQSTATUS 0x0018
+#define DISPC_IRQENABLE 0x001C
+#define DISPC_CONTROL 0x0040
+#define DISPC_CONFIG 0x0044
+#define DISPC_CAPABLE 0x0048
+#define DISPC_DEFAULT_COLOR0 0x004C
+#define DISPC_DEFAULT_COLOR1 0x0050
+#define DISPC_TRANS_COLOR0 0x0054
+#define DISPC_TRANS_COLOR1 0x0058
+#define DISPC_LINE_STATUS 0x005C
+#define DISPC_LINE_NUMBER 0x0060
+#define DISPC_TIMING_H 0x0064
+#define DISPC_TIMING_V 0x0068
+#define DISPC_POL_FREQ 0x006C
+#define DISPC_DIVISOR 0x0070
+#define DISPC_SIZE_DIG 0x0078
+#define DISPC_SIZE_LCD 0x007C
+
+#define DISPC_DATA_CYCLE1 0x01D4
+#define DISPC_DATA_CYCLE2 0x01D8
+#define DISPC_DATA_CYCLE3 0x01DC
+
+/* DISPC GFX plane */
+#define DISPC_GFX_BA0 0x0080
+#define DISPC_GFX_BA1 0x0084
+#define DISPC_GFX_POSITION 0x0088
+#define DISPC_GFX_SIZE 0x008C
+#define DISPC_GFX_ATTRIBUTES 0x00A0
+#define DISPC_GFX_FIFO_THRESHOLD 0x00A4
+#define DISPC_GFX_FIFO_SIZE_STATUS 0x00A8
+#define DISPC_GFX_ROW_INC 0x00AC
+#define DISPC_GFX_PIXEL_INC 0x00B0
+#define DISPC_GFX_WINDOW_SKIP 0x00B4
+#define DISPC_GFX_TABLE_BA 0x00B8
+
+/* DISPC Video plane 1/2 */
+#define DISPC_VID1_BASE 0x00BC
+#define DISPC_VID2_BASE 0x014C
+
+/* Offsets into DISPC_VID1/2_BASE */
+#define DISPC_VID_BA0 0x0000
+#define DISPC_VID_BA1 0x0004
+#define DISPC_VID_POSITION 0x0008
+#define DISPC_VID_SIZE 0x000C
+#define DISPC_VID_ATTRIBUTES 0x0010
+#define DISPC_VID_FIFO_THRESHOLD 0x0014
+#define DISPC_VID_FIFO_SIZE_STATUS 0x0018
+#define DISPC_VID_ROW_INC 0x001C
+#define DISPC_VID_PIXEL_INC 0x0020
+#define DISPC_VID_FIR 0x0024
+#define DISPC_VID_PICTURE_SIZE 0x0028
+#define DISPC_VID_ACCU0 0x002C
+#define DISPC_VID_ACCU1 0x0030
+
+/* 8 elements in 8 byte increments */
+#define DISPC_VID_FIR_COEF_H0 0x0034
+/* 8 elements in 8 byte increments */
+#define DISPC_VID_FIR_COEF_HV0 0x0038
+/* 5 elements in 4 byte increments */
+#define DISPC_VID_CONV_COEF0 0x0074
+
+#define DISPC_IRQ_FRAMEMASK 0x0001
+#define DISPC_IRQ_VSYNC 0x0002
+#define DISPC_IRQ_EVSYNC_EVEN 0x0004
+#define DISPC_IRQ_EVSYNC_ODD 0x0008
+#define DISPC_IRQ_ACBIAS_COUNT_STAT 0x0010
+#define DISPC_IRQ_PROG_LINE_NUM 0x0020
+#define DISPC_IRQ_GFX_FIFO_UNDERFLOW 0x0040
+#define DISPC_IRQ_GFX_END_WIN 0x0080
+#define DISPC_IRQ_PAL_GAMMA_MASK 0x0100
+#define DISPC_IRQ_OCP_ERR 0x0200
+#define DISPC_IRQ_VID1_FIFO_UNDERFLOW 0x0400
+#define DISPC_IRQ_VID1_END_WIN 0x0800
+#define DISPC_IRQ_VID2_FIFO_UNDERFLOW 0x1000
+#define DISPC_IRQ_VID2_END_WIN 0x2000
+#define DISPC_IRQ_SYNC_LOST 0x4000
+
+#define DISPC_IRQ_MASK_ALL 0x7fff
+
+#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
+ DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
+ DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
+ DISPC_IRQ_SYNC_LOST)
+
+#define RFBI_CONTROL 0x48050040
+
+#define MAX_PALETTE_SIZE (256 * 16)
+
+#define FLD_MASK(pos, len) (((1 << len) - 1) << pos)
+
+#define MOD_REG_FLD(reg, mask, val) \
+ dispc_write_reg((reg), (dispc_read_reg(reg) & ~(mask)) | (val));
+
+#define OMAP2_SRAM_START 0x40200000
+/* Maximum size, in reality this is smaller if SRAM is partially locked. */
+#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */
+
+/* We support the SDRAM / SRAM types. See OMAPFB_PLANE_MEMTYPE_* in omapfb.h */
+#define DISPC_MEMTYPE_NUM 2
+
+#define RESMAP_SIZE(_page_cnt) \
+ ((_page_cnt + (sizeof(unsigned long) * 8) - 1) / 8)
+#define RESMAP_PTR(_res_map, _page_nr) \
+ (((_res_map)->map) + (_page_nr) / (sizeof(unsigned long) * 8))
+#define RESMAP_MASK(_page_nr) \
+ (1 << ((_page_nr) & (sizeof(unsigned long) * 8 - 1)))
+
+struct resmap {
+ unsigned long start;
+ unsigned page_cnt;
+ unsigned long *map;
+};
+
+static struct {
+ u32 base;
+
+ struct omapfb_mem_desc mem_desc;
+ struct resmap *res_map[DISPC_MEMTYPE_NUM];
+ atomic_t map_count[OMAPFB_PLANE_NUM];
+
+ dma_addr_t palette_paddr;
+ void *palette_vaddr;
+
+ int ext_mode;
+
+ unsigned long enabled_irqs;
+ void (*irq_callback)(void *);
+ void *irq_callback_data;
+ struct completion frame_done;
+
+ int fir_hinc[OMAPFB_PLANE_NUM];
+ int fir_vinc[OMAPFB_PLANE_NUM];
+
+ struct clk *dss_ick, *dss1_fck;
+ struct clk *dss_54m_fck;
+
+ enum omapfb_update_mode update_mode;
+ struct omapfb_device *fbdev;
+
+ struct omapfb_color_key color_key;
+} dispc;
+
+static void enable_lcd_clocks(int enable);
+
+static void inline dispc_write_reg(int idx, u32 val)
+{
+ __raw_writel(val, dispc.base + idx);
+}
+
+static u32 inline dispc_read_reg(int idx)
+{
+ u32 l = __raw_readl(dispc.base + idx);
+ return l;
+}
+
+/* Select RFBI or bypass mode */
+static void enable_rfbi_mode(int enable)
+{
+ u32 l;
+
+ l = dispc_read_reg(DISPC_CONTROL);
+ /* Enable RFBI, GPIO0/1 */
+ l &= ~((1 << 11) | (1 << 15) | (1 << 16));
+ l |= enable ? (1 << 11) : 0;
+ /* RFBI En: GPIO0/1=10 RFBI Dis: GPIO0/1=11 */
+ l |= 1 << 15;
+ l |= enable ? 0 : (1 << 16);
+ dispc_write_reg(DISPC_CONTROL, l);
+
+ /* Set bypass mode in RFBI module */
+ l = __raw_readl(io_p2v(RFBI_CONTROL));
+ l |= enable ? 0 : (1 << 1);
+ __raw_writel(l, io_p2v(RFBI_CONTROL));
+}
+
+static void set_lcd_data_lines(int data_lines)
+{
+ u32 l;
+ int code = 0;
+
+ switch (data_lines) {
+ case 12:
+ code = 0;
+ break;
+ case 16:
+ code = 1;
+ break;
+ case 18:
+ code = 2;
+ break;
+ case 24:
+ code = 3;
+ break;
+ default:
+ BUG();
+ }
+
+ l = dispc_read_reg(DISPC_CONTROL);
+ l &= ~(0x03 << 8);
+ l |= code << 8;
+ dispc_write_reg(DISPC_CONTROL, l);
+}
+
+static void set_load_mode(int mode)
+{
+ BUG_ON(mode & ~(DISPC_LOAD_CLUT_ONLY | DISPC_LOAD_FRAME_ONLY |
+ DISPC_LOAD_CLUT_ONCE_FRAME));
+ MOD_REG_FLD(DISPC_CONFIG, 0x03 << 1, mode << 1);
+}
+
+void omap_dispc_set_lcd_size(int x, int y)
+{
+ BUG_ON((x > (1 << 11)) || (y > (1 << 11)));
+ enable_lcd_clocks(1);
+ MOD_REG_FLD(DISPC_SIZE_LCD, FLD_MASK(16, 11) | FLD_MASK(0, 11),
+ ((y - 1) << 16) | (x - 1));
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_set_lcd_size);
+
+void omap_dispc_set_digit_size(int x, int y)
+{
+ BUG_ON((x > (1 << 11)) || (y > (1 << 11)));
+ enable_lcd_clocks(1);
+ MOD_REG_FLD(DISPC_SIZE_DIG, FLD_MASK(16, 11) | FLD_MASK(0, 11),
+ ((y - 1) << 16) | (x - 1));
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_set_digit_size);
+
+static void setup_plane_fifo(int plane, int ext_mode)
+{
+ const u32 ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
+ DISPC_VID1_BASE + DISPC_VID_FIFO_THRESHOLD,
+ DISPC_VID2_BASE + DISPC_VID_FIFO_THRESHOLD };
+ const u32 fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
+ DISPC_VID1_BASE + DISPC_VID_FIFO_SIZE_STATUS,
+ DISPC_VID2_BASE + DISPC_VID_FIFO_SIZE_STATUS };
+ int low, high;
+ u32 l;
+
+ BUG_ON(plane > 2);
+
+ l = dispc_read_reg(fsz_reg[plane]);
+ l &= FLD_MASK(0, 9);
+ if (ext_mode) {
+ low = l * 3 / 4;
+ high = l;
+ } else {
+ low = l / 4;
+ high = l * 3 / 4;
+ }
+ MOD_REG_FLD(ftrs_reg[plane], FLD_MASK(16, 9) | FLD_MASK(0, 9),
+ (high << 16) | low);
+}
+
+void omap_dispc_enable_lcd_out(int enable)
+{
+ enable_lcd_clocks(1);
+ MOD_REG_FLD(DISPC_CONTROL, 1, enable ? 1 : 0);
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_enable_lcd_out);
+
+void omap_dispc_enable_digit_out(int enable)
+{
+ enable_lcd_clocks(1);
+ MOD_REG_FLD(DISPC_CONTROL, 1 << 1, enable ? 1 << 1 : 0);
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_enable_digit_out);
+
+static inline int _setup_plane(int plane, int channel_out,
+ u32 paddr, int screen_width,
+ int pos_x, int pos_y, int width, int height,
+ int color_mode)
+{
+ const u32 at_reg[] = { DISPC_GFX_ATTRIBUTES,
+ DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES,
+ DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES };
+ const u32 ba_reg[] = { DISPC_GFX_BA0, DISPC_VID1_BASE + DISPC_VID_BA0,
+ DISPC_VID2_BASE + DISPC_VID_BA0 };
+ const u32 ps_reg[] = { DISPC_GFX_POSITION,
+ DISPC_VID1_BASE + DISPC_VID_POSITION,
+ DISPC_VID2_BASE + DISPC_VID_POSITION };
+ const u32 sz_reg[] = { DISPC_GFX_SIZE,
+ DISPC_VID1_BASE + DISPC_VID_PICTURE_SIZE,
+ DISPC_VID2_BASE + DISPC_VID_PICTURE_SIZE };
+ const u32 ri_reg[] = { DISPC_GFX_ROW_INC,
+ DISPC_VID1_BASE + DISPC_VID_ROW_INC,
+ DISPC_VID2_BASE + DISPC_VID_ROW_INC };
+ const u32 vs_reg[]= { 0, DISPC_VID1_BASE + DISPC_VID_SIZE,
+ DISPC_VID2_BASE + DISPC_VID_SIZE };
+
+ int chout_shift, burst_shift;
+ int chout_val;
+ int color_code;
+ int bpp;
+ int cconv_en;
+ int set_vsize;
+ u32 l;
+
+#ifdef VERBOSE
+ dev_dbg(dispc.fbdev->dev, "plane %d channel %d paddr %#08x scr_width %d "
+ "pos_x %d pos_y %d width %d height %d color_mode %d\n",
+ plane, channel_out, paddr, screen_width, pos_x, pos_y,
+ width, height, color_mode);
+#endif
+
+ set_vsize = 0;
+ switch (plane) {
+ case OMAPFB_PLANE_GFX:
+ burst_shift = 6;
+ chout_shift = 8;
+ break;
+ case OMAPFB_PLANE_VID1:
+ case OMAPFB_PLANE_VID2:
+ burst_shift = 14;
+ chout_shift = 16;
+ set_vsize = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (channel_out) {
+ case OMAPFB_CHANNEL_OUT_LCD:
+ chout_val = 0;
+ break;
+ case OMAPFB_CHANNEL_OUT_DIGIT:
+ chout_val = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ cconv_en = 0;
+ switch (color_mode) {
+ case OMAPFB_COLOR_RGB565:
+ color_code = DISPC_RGB_16_BPP;
+ bpp = 16;
+ break;
+ case OMAPFB_COLOR_YUV422:
+ if (plane == 0)
+ return -EINVAL;
+ color_code = DISPC_UYVY_422;
+ cconv_en = 1;
+ bpp = 16;
+ break;
+ case OMAPFB_COLOR_YUY422:
+ if (plane == 0)
+ return -EINVAL;
+ color_code = DISPC_YUV2_422;
+ cconv_en = 1;
+ bpp = 16;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ l = dispc_read_reg(at_reg[plane]);
+
+ l &= ~(0x0f << 1);
+ l |= color_code << 1;
+ l &= ~(1 << 9);
+ l |= cconv_en << 9;
+
+ l &= ~(0x03 << burst_shift);
+ l |= DISPC_BURST_8x32 << burst_shift;
+
+ l &= ~(1 << chout_shift);
+ l |= chout_val << chout_shift;
+
+ dispc_write_reg(at_reg[plane], l);
+
+ dispc_write_reg(ba_reg[plane], paddr);
+ MOD_REG_FLD(ps_reg[plane],
+ FLD_MASK(16, 11) | FLD_MASK(0, 11), (pos_y << 16) | pos_x);
+
+ MOD_REG_FLD(sz_reg[plane], FLD_MASK(16, 11) | FLD_MASK(0, 11),
+ ((height - 1) << 16) | (width - 1));
+
+ if (set_vsize) {
+ /* Set video size if set_scale hasn't set it */
+ if (!dispc.fir_vinc[plane])
+ MOD_REG_FLD(vs_reg[plane],
+ FLD_MASK(16, 11), (height - 1) << 16);
+ if (!dispc.fir_hinc[plane])
+ MOD_REG_FLD(vs_reg[plane],
+ FLD_MASK(0, 11), width - 1);
+ }
+
+ dispc_write_reg(ri_reg[plane], (screen_width - width) * bpp / 8 + 1);
+
+ return height * screen_width * bpp / 8;
+}
+
+static int omap_dispc_setup_plane(int plane, int channel_out,
+ unsigned long offset,
+ int screen_width,
+ int pos_x, int pos_y, int width, int height,
+ int color_mode)
+{
+ u32 paddr;
+ int r;
+
+ if ((unsigned)plane > dispc.mem_desc.region_cnt)
+ return -EINVAL;
+ paddr = dispc.mem_desc.region[plane].paddr + offset;
+ enable_lcd_clocks(1);
+ r = _setup_plane(plane, channel_out, paddr,
+ screen_width,
+ pos_x, pos_y, width, height, color_mode);
+ enable_lcd_clocks(0);
+ return r;
+}
+
+static void write_firh_reg(int plane, int reg, u32 value)
+{
+ u32 base;
+
+ if (plane == 1)
+ base = DISPC_VID1_BASE + DISPC_VID_FIR_COEF_H0;
+ else
+ base = DISPC_VID2_BASE + DISPC_VID_FIR_COEF_H0;
+ dispc_write_reg(base + reg * 8, value);
+}
+
+static void write_firhv_reg(int plane, int reg, u32 value)
+{
+ u32 base;
+
+ if (plane == 1)
+ base = DISPC_VID1_BASE + DISPC_VID_FIR_COEF_HV0;
+ else
+ base = DISPC_VID2_BASE + DISPC_VID_FIR_COEF_HV0;
+ dispc_write_reg(base + reg * 8, value);
+}
+
+static void set_upsampling_coef_table(int plane)
+{
+ const u32 coef[][2] = {
+ { 0x00800000, 0x00800000 },
+ { 0x0D7CF800, 0x037B02FF },
+ { 0x1E70F5FF, 0x0C6F05FE },
+ { 0x335FF5FE, 0x205907FB },
+ { 0xF74949F7, 0x00404000 },
+ { 0xF55F33FB, 0x075920FE },
+ { 0xF5701EFE, 0x056F0CFF },
+ { 0xF87C0DFF, 0x027B0300 },
+ };
+ int i;
+
+ for (i = 0; i < 8; i++) {
+ write_firh_reg(plane, i, coef[i][0]);
+ write_firhv_reg(plane, i, coef[i][1]);
+ }
+}
+
+static int omap_dispc_set_scale(int plane,
+ int orig_width, int orig_height,
+ int out_width, int out_height)
+{
+ const u32 at_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES,
+ DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES };
+ const u32 vs_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_SIZE,
+ DISPC_VID2_BASE + DISPC_VID_SIZE };
+ const u32 fir_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_FIR,
+ DISPC_VID2_BASE + DISPC_VID_FIR };
+
+ u32 l;
+ int fir_hinc;
+ int fir_vinc;
+
+ if ((unsigned)plane > OMAPFB_PLANE_NUM)
+ return -ENODEV;
+
+ if (plane == OMAPFB_PLANE_GFX &&
+ (out_width != orig_width || out_height != orig_height))
+ return -EINVAL;
+
+ enable_lcd_clocks(1);
+ if (orig_width < out_width) {
+ /* Upsampling.
+ * Currently you can only scale both dimensions in one way.
+ */
+ if (orig_height > out_height ||
+ orig_width * 8 < out_width ||
+ orig_height * 8 < out_height) {
+ enable_lcd_clocks(0);
+ return -EINVAL;
+ }
+ set_upsampling_coef_table(plane);
+ } else if (orig_width > out_width) {
+ /* Downsampling not yet supported
+ */
+
+ enable_lcd_clocks(0);
+ return -EINVAL;
+ }
+ if (!orig_width || orig_width == out_width)
+ fir_hinc = 0;
+ else
+ fir_hinc = 1024 * orig_width / out_width;
+ if (!orig_height || orig_height == out_height)
+ fir_vinc = 0;
+ else
+ fir_vinc = 1024 * orig_height / out_height;
+ dispc.fir_hinc[plane] = fir_hinc;
+ dispc.fir_vinc[plane] = fir_vinc;
+
+ MOD_REG_FLD(fir_reg[plane],
+ FLD_MASK(16, 12) | FLD_MASK(0, 12),
+ ((fir_vinc & 4095) << 16) |
+ (fir_hinc & 4095));
+
+ dev_dbg(dispc.fbdev->dev, "out_width %d out_height %d orig_width %d "
+ "orig_height %d fir_hinc %d fir_vinc %d\n",
+ out_width, out_height, orig_width, orig_height,
+ fir_hinc, fir_vinc);
+
+ MOD_REG_FLD(vs_reg[plane],
+ FLD_MASK(16, 11) | FLD_MASK(0, 11),
+ ((out_height - 1) << 16) | (out_width - 1));
+
+ l = dispc_read_reg(at_reg[plane]);
+ l &= ~(0x03 << 5);
+ l |= fir_hinc ? (1 << 5) : 0;
+ l |= fir_vinc ? (1 << 6) : 0;
+ dispc_write_reg(at_reg[plane], l);
+
+ enable_lcd_clocks(0);
+ return 0;
+}
+
+static int omap_dispc_enable_plane(int plane, int enable)
+{
+ const u32 at_reg[] = { DISPC_GFX_ATTRIBUTES,
+ DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES,
+ DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES };
+ if ((unsigned int)plane > dispc.mem_desc.region_cnt)
+ return -EINVAL;
+
+ enable_lcd_clocks(1);
+ MOD_REG_FLD(at_reg[plane], 1, enable ? 1 : 0);
+ enable_lcd_clocks(0);
+
+ return 0;
+}
+
+static int omap_dispc_set_color_key(struct omapfb_color_key *ck)
+{
+ u32 df_reg, tr_reg;
+ int shift, val;
+
+ switch (ck->channel_out) {
+ case OMAPFB_CHANNEL_OUT_LCD:
+ df_reg = DISPC_DEFAULT_COLOR0;
+ tr_reg = DISPC_TRANS_COLOR0;
+ shift = 10;
+ break;
+ case OMAPFB_CHANNEL_OUT_DIGIT:
+ df_reg = DISPC_DEFAULT_COLOR1;
+ tr_reg = DISPC_TRANS_COLOR1;
+ shift = 12;
+ break;
+ default:
+ return -EINVAL;
+ }
+ switch (ck->key_type) {
+ case OMAPFB_COLOR_KEY_DISABLED:
+ val = 0;
+ break;
+ case OMAPFB_COLOR_KEY_GFX_DST:
+ val = 1;
+ break;
+ case OMAPFB_COLOR_KEY_VID_SRC:
+ val = 3;
+ break;
+ default:
+ return -EINVAL;
+ }
+ enable_lcd_clocks(1);
+ MOD_REG_FLD(DISPC_CONFIG, FLD_MASK(shift, 2), val << shift);
+
+ if (val != 0)
+ dispc_write_reg(tr_reg, ck->trans_key);
+ dispc_write_reg(df_reg, ck->background);
+ enable_lcd_clocks(0);
+
+ dispc.color_key = *ck;
+
+ return 0;
+}
+
+static int omap_dispc_get_color_key(struct omapfb_color_key *ck)
+{
+ *ck = dispc.color_key;
+ return 0;
+}
+
+static void load_palette(void)
+{
+}
+
+static int omap_dispc_set_update_mode(enum omapfb_update_mode mode)
+{
+ int r = 0;
+
+ if (mode != dispc.update_mode) {
+ switch (mode) {
+ case OMAPFB_AUTO_UPDATE:
+ case OMAPFB_MANUAL_UPDATE:
+ enable_lcd_clocks(1);
+ omap_dispc_enable_lcd_out(1);
+ dispc.update_mode = mode;
+ break;
+ case OMAPFB_UPDATE_DISABLED:
+ init_completion(&dispc.frame_done);
+ omap_dispc_enable_lcd_out(0);
+ if (!wait_for_completion_timeout(&dispc.frame_done,
+ msecs_to_jiffies(500))) {
+ dev_err(dispc.fbdev->dev,
+ "timeout waiting for FRAME DONE\n");
+ }
+ dispc.update_mode = mode;
+ enable_lcd_clocks(0);
+ break;
+ default:
+ r = -EINVAL;
+ }
+ }
+
+ return r;
+}
+
+static void omap_dispc_get_caps(int plane, struct omapfb_caps *caps)
+{
+ caps->ctrl |= OMAPFB_CAPS_PLANE_RELOCATE_MEM;
+ if (plane > 0)
+ caps->ctrl |= OMAPFB_CAPS_PLANE_SCALE;
+ caps->plane_color |= (1 << OMAPFB_COLOR_RGB565) |
+ (1 << OMAPFB_COLOR_YUV422) |
+ (1 << OMAPFB_COLOR_YUY422);
+ if (plane == 0)
+ caps->plane_color |= (1 << OMAPFB_COLOR_CLUT_8BPP) |
+ (1 << OMAPFB_COLOR_CLUT_4BPP) |
+ (1 << OMAPFB_COLOR_CLUT_2BPP) |
+ (1 << OMAPFB_COLOR_CLUT_1BPP) |
+ (1 << OMAPFB_COLOR_RGB444);
+}
+
+static enum omapfb_update_mode omap_dispc_get_update_mode(void)
+{
+ return dispc.update_mode;
+}
+
+static void setup_color_conv_coef(void)
+{
+ u32 mask = FLD_MASK(16, 11) | FLD_MASK(0, 11);
+ int cf1_reg = DISPC_VID1_BASE + DISPC_VID_CONV_COEF0;
+ int cf2_reg = DISPC_VID2_BASE + DISPC_VID_CONV_COEF0;
+ int at1_reg = DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES;
+ int at2_reg = DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES;
+ const struct color_conv_coef {
+ int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
+ int full_range;
+ } ctbl_bt601_5 = {
+ 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
+ };
+#if 0
+ const struct color_conv_coef ctbl_bt601_5_full = {
+ 256, 351, 0, 256, -179, -86, 256, 0, 443, 1,
+ }, ctbl_bt709 = {
+ 298, 459, 0, 298, -137, -55, 298, 0, 541, 0,
+ }, ctbl_bt709_f = {
+ 256, 394, 0, 256, -118, -47, 256, 0, 465, 1, },
+#endif
+ const struct color_conv_coef *ct;
+#define CVAL(x, y) (((x & 2047) << 16) | (y & 2047))
+
+ ct = &ctbl_bt601_5;
+
+ MOD_REG_FLD(cf1_reg, mask, CVAL(ct->rcr, ct->ry));
+ MOD_REG_FLD(cf1_reg + 4, mask, CVAL(ct->gy, ct->rcb));
+ MOD_REG_FLD(cf1_reg + 8, mask, CVAL(ct->gcb, ct->gcr));
+ MOD_REG_FLD(cf1_reg + 12, mask, CVAL(ct->bcr, ct->by));
+ MOD_REG_FLD(cf1_reg + 16, mask, CVAL(0, ct->bcb));
+
+ MOD_REG_FLD(cf2_reg, mask, CVAL(ct->rcr, ct->ry));
+ MOD_REG_FLD(cf2_reg + 4, mask, CVAL(ct->gy, ct->rcb));
+ MOD_REG_FLD(cf2_reg + 8, mask, CVAL(ct->gcb, ct->gcr));
+ MOD_REG_FLD(cf2_reg + 12, mask, CVAL(ct->bcr, ct->by));
+ MOD_REG_FLD(cf2_reg + 16, mask, CVAL(0, ct->bcb));
+#undef CVAL
+
+ MOD_REG_FLD(at1_reg, (1 << 11), ct->full_range);
+ MOD_REG_FLD(at2_reg, (1 << 11), ct->full_range);
+}
+
+static void calc_ck_div(int is_tft, int pck, int *lck_div, int *pck_div)
+{
+ unsigned long fck, lck;
+
+ *lck_div = 1;
+ pck = max(1, pck);
+ fck = clk_get_rate(dispc.dss1_fck);
+ lck = fck;
+ *pck_div = (lck + pck - 1) / pck;
+ if (is_tft)
+ *pck_div = max(2, *pck_div);
+ else
+ *pck_div = max(3, *pck_div);
+ if (*pck_div > 255) {
+ *pck_div = 255;
+ lck = pck * *pck_div;
+ *lck_div = fck / lck;
+ BUG_ON(*lck_div < 1);
+ if (*lck_div > 255) {
+ *lck_div = 255;
+ dev_warn(dispc.fbdev->dev, "pixclock %d kHz too low.\n",
+ pck / 1000);
+ }
+ }
+}
+
+static void set_lcd_tft_mode(int enable)
+{
+ u32 mask;
+
+ mask = 1 << 3;
+ MOD_REG_FLD(DISPC_CONTROL, mask, enable ? mask : 0);
+}
+
+static void set_lcd_timings(void)
+{
+ u32 l;
+ int lck_div, pck_div;
+ struct lcd_panel *panel = dispc.fbdev->panel;
+ int is_tft = panel->config & OMAP_LCDC_PANEL_TFT;
+ unsigned long fck;
+
+ l = dispc_read_reg(DISPC_TIMING_H);
+ l &= ~(FLD_MASK(0, 6) | FLD_MASK(8, 8) | FLD_MASK(20, 8));
+ l |= ( max(1, (min(64, panel->hsw))) - 1 ) << 0;
+ l |= ( max(1, (min(256, panel->hfp))) - 1 ) << 8;
+ l |= ( max(1, (min(256, panel->hbp))) - 1 ) << 20;
+ dispc_write_reg(DISPC_TIMING_H, l);
+
+ l = dispc_read_reg(DISPC_TIMING_V);
+ l &= ~(FLD_MASK(0, 6) | FLD_MASK(8, 8) | FLD_MASK(20, 8));
+ l |= ( max(1, (min(64, panel->vsw))) - 1 ) << 0;
+ l |= ( max(0, (min(255, panel->vfp))) - 0 ) << 8;
+ l |= ( max(0, (min(255, panel->vbp))) - 0 ) << 20;
+ dispc_write_reg(DISPC_TIMING_V, l);
+
+ l = dispc_read_reg(DISPC_POL_FREQ);
+ l &= ~FLD_MASK(12, 6);
+ l |= (panel->config & OMAP_LCDC_SIGNAL_MASK) << 12;
+ l |= panel->acb & 0xff;
+ dispc_write_reg(DISPC_POL_FREQ, l);
+
+ calc_ck_div(is_tft, panel->pixel_clock * 1000, &lck_div, &pck_div);
+
+ l = dispc_read_reg(DISPC_DIVISOR);
+ l &= ~(FLD_MASK(16, 8) | FLD_MASK(0, 8));
+ l |= (lck_div << 16) | (pck_div << 0);
+ dispc_write_reg(DISPC_DIVISOR, l);
+
+ /* update panel info with the exact clock */
+ fck = clk_get_rate(dispc.dss1_fck);
+ panel->pixel_clock = fck / lck_div / pck_div / 1000;
+}
+
+int omap_dispc_request_irq(void (*callback)(void *data), void *data)
+{
+ int r = 0;
+
+ BUG_ON(callback == NULL);
+
+ if (dispc.irq_callback)
+ r = -EBUSY;
+ else {
+ dispc.irq_callback = callback;
+ dispc.irq_callback_data = data;
+ }
+
+ return r;
+}
+EXPORT_SYMBOL(omap_dispc_request_irq);
+
+void omap_dispc_enable_irqs(int irq_mask)
+{
+ enable_lcd_clocks(1);
+ dispc.enabled_irqs = irq_mask;
+ irq_mask |= DISPC_IRQ_MASK_ERROR;
+ MOD_REG_FLD(DISPC_IRQENABLE, 0x7fff, irq_mask);
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_enable_irqs);
+
+void omap_dispc_disable_irqs(int irq_mask)
+{
+ enable_lcd_clocks(1);
+ dispc.enabled_irqs &= ~irq_mask;
+ irq_mask &= ~DISPC_IRQ_MASK_ERROR;
+ MOD_REG_FLD(DISPC_IRQENABLE, 0x7fff, irq_mask);
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_disable_irqs);
+
+void omap_dispc_free_irq(void)
+{
+ enable_lcd_clocks(1);
+ omap_dispc_disable_irqs(DISPC_IRQ_MASK_ALL);
+ dispc.irq_callback = NULL;
+ dispc.irq_callback_data = NULL;
+ enable_lcd_clocks(0);
+}
+EXPORT_SYMBOL(omap_dispc_free_irq);
+
+static irqreturn_t omap_dispc_irq_handler(int irq, void *dev)
+{
+ u32 stat = dispc_read_reg(DISPC_IRQSTATUS);
+
+ if (stat & DISPC_IRQ_FRAMEMASK)
+ complete(&dispc.frame_done);
+
+ if (stat & DISPC_IRQ_MASK_ERROR) {
+ if (printk_ratelimit()) {
+ dev_err(dispc.fbdev->dev, "irq error status %04x\n",
+ stat & 0x7fff);
+ }
+ }
+
+ if ((stat & dispc.enabled_irqs) && dispc.irq_callback)
+ dispc.irq_callback(dispc.irq_callback_data);
+
+ dispc_write_reg(DISPC_IRQSTATUS, stat);
+
+ return IRQ_HANDLED;
+}
+
+static int get_dss_clocks(void)
+{
+ if (IS_ERR((dispc.dss_ick = clk_get(dispc.fbdev->dev, "dss_ick")))) {
+ dev_err(dispc.fbdev->dev, "can't get dss_ick");
+ return PTR_ERR(dispc.dss_ick);
+ }
+
+ if (IS_ERR((dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck")))) {
+ dev_err(dispc.fbdev->dev, "can't get dss1_fck");
+ clk_put(dispc.dss_ick);
+ return PTR_ERR(dispc.dss1_fck);
+ }
+
+ if (IS_ERR((dispc.dss_54m_fck =
+ clk_get(dispc.fbdev->dev, "dss_54m_fck")))) {
+ dev_err(dispc.fbdev->dev, "can't get dss_54m_fck");
+ clk_put(dispc.dss_ick);
+ clk_put(dispc.dss1_fck);
+ return PTR_ERR(dispc.dss_54m_fck);
+ }
+
+ return 0;
+}
+
+static void put_dss_clocks(void)
+{
+ clk_put(dispc.dss_54m_fck);
+ clk_put(dispc.dss1_fck);
+ clk_put(dispc.dss_ick);
+}
+
+static void enable_lcd_clocks(int enable)
+{
+ if (enable)
+ clk_enable(dispc.dss1_fck);
+ else
+ clk_disable(dispc.dss1_fck);
+}
+
+static void enable_interface_clocks(int enable)
+{
+ if (enable)
+ clk_enable(dispc.dss_ick);
+ else
+ clk_disable(dispc.dss_ick);
+}
+
+static void enable_digit_clocks(int enable)
+{
+ if (enable)
+ clk_enable(dispc.dss_54m_fck);
+ else
+ clk_disable(dispc.dss_54m_fck);
+}
+
+static void omap_dispc_suspend(void)
+{
+ if (dispc.update_mode == OMAPFB_AUTO_UPDATE) {
+ init_completion(&dispc.frame_done);
+ omap_dispc_enable_lcd_out(0);
+ if (!wait_for_completion_timeout(&dispc.frame_done,
+ msecs_to_jiffies(500))) {
+ dev_err(dispc.fbdev->dev,
+ "timeout waiting for FRAME DONE\n");
+ }
+ enable_lcd_clocks(0);
+ }
+}
+
+static void omap_dispc_resume(void)
+{
+ if (dispc.update_mode == OMAPFB_AUTO_UPDATE) {
+ enable_lcd_clocks(1);
+ if (!dispc.ext_mode) {
+ set_lcd_timings();
+ load_palette();
+ }
+ omap_dispc_enable_lcd_out(1);
+ }
+}
+
+
+static int omap_dispc_update_window(struct fb_info *fbi,
+ struct omapfb_update_window *win,
+ void (*complete_callback)(void *arg),
+ void *complete_callback_data)
+{
+ return dispc.update_mode == OMAPFB_UPDATE_DISABLED ? -ENODEV : 0;
+}
+
+static int mmap_kern(struct omapfb_mem_region *region)
+{
+ struct vm_struct *kvma;
+ struct vm_area_struct vma;
+ pgprot_t pgprot;
+ unsigned long vaddr;
+
+ kvma = get_vm_area(region->size, VM_IOREMAP);
+ if (kvma == NULL) {
+ dev_err(dispc.fbdev->dev, "can't get kernel vm area\n");
+ return -ENOMEM;
+ }
+ vma.vm_mm = &init_mm;
+
+ vaddr = (unsigned long)kvma->addr;
+
+ pgprot = pgprot_writecombine(pgprot_kernel);
+ vma.vm_start = vaddr;
+ vma.vm_end = vaddr + region->size;
+ if (io_remap_pfn_range(&vma, vaddr, region->paddr >> PAGE_SHIFT,
+ region->size, pgprot) < 0) {
+ dev_err(dispc.fbdev->dev, "kernel mmap for FBMEM failed\n");
+ return -EAGAIN;
+ }
+ region->vaddr = (void *)vaddr;
+
+ return 0;
+}
+
+static void mmap_user_open(struct vm_area_struct *vma)
+{
+ int plane = (int)vma->vm_private_data;
+
+ atomic_inc(&dispc.map_count[plane]);
+}
+
+static void mmap_user_close(struct vm_area_struct *vma)
+{
+ int plane = (int)vma->vm_private_data;
+
+ atomic_dec(&dispc.map_count[plane]);
+}
+
+static struct vm_operations_struct mmap_user_ops = {
+ .open = mmap_user_open,
+ .close = mmap_user_close,
+};
+
+static int omap_dispc_mmap_user(struct fb_info *info,
+ struct vm_area_struct *vma)
+{
+ struct omapfb_plane_struct *plane = info->par;
+ unsigned long off;
+ unsigned long start;
+ u32 len;
+
+ if (vma->vm_end - vma->vm_start == 0)
+ return 0;
+ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
+ return -EINVAL;
+ off = vma->vm_pgoff << PAGE_SHIFT;
+
+ start = info->fix.smem_start;
+ len = info->fix.smem_len;
+ if (off >= len)
+ return -EINVAL;
+ if ((vma->vm_end - vma->vm_start + off) > len)
+ return -EINVAL;
+ off += start;
+ vma->vm_pgoff = off >> PAGE_SHIFT;
+ vma->vm_flags |= VM_IO | VM_RESERVED;
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ vma->vm_ops = &mmap_user_ops;
+ vma->vm_private_data = (void *)plane->idx;
+ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ return -EAGAIN;
+ /* vm_ops.open won't be called for mmap itself. */
+ atomic_inc(&dispc.map_count[plane->idx]);
+ return 0;
+}
+
+static void unmap_kern(struct omapfb_mem_region *region)
+{
+ vunmap(region->vaddr);
+}
+
+static int alloc_palette_ram(void)
+{
+ dispc.palette_vaddr = dma_alloc_writecombine(dispc.fbdev->dev,
+ MAX_PALETTE_SIZE, &dispc.palette_paddr, GFP_KERNEL);
+ if (dispc.palette_vaddr == NULL) {
+ dev_err(dispc.fbdev->dev, "failed to alloc palette memory\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static void free_palette_ram(void)
+{
+ dma_free_writecombine(dispc.fbdev->dev, MAX_PALETTE_SIZE,
+ dispc.palette_vaddr, dispc.palette_paddr);
+}
+
+static int alloc_fbmem(struct omapfb_mem_region *region)
+{
+ region->vaddr = dma_alloc_writecombine(dispc.fbdev->dev,
+ region->size, ®ion->paddr, GFP_KERNEL);
+
+ if (region->vaddr == NULL) {
+ dev_err(dispc.fbdev->dev, "unable to allocate FB DMA memory\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static void free_fbmem(struct omapfb_mem_region *region)
+{
+ dma_free_writecombine(dispc.fbdev->dev, region->size,
+ region->vaddr, region->paddr);
+}
+
+static struct resmap *init_resmap(unsigned long start, size_t size)
+{
+ unsigned page_cnt;
+ struct resmap *res_map;
+
+ page_cnt = PAGE_ALIGN(size) / PAGE_SIZE;
+ res_map =
+ kzalloc(sizeof(struct resmap) + RESMAP_SIZE(page_cnt), GFP_KERNEL);
+ if (res_map == NULL)
+ return NULL;
+ res_map->start = start;
+ res_map->page_cnt = page_cnt;
+ res_map->map = (unsigned long *)(res_map + 1);
+ return res_map;
+}
+
+static void cleanup_resmap(struct resmap *res_map)
+{
+ kfree(res_map);
+}
+
+static inline int resmap_mem_type(unsigned long start)
+{
+ if (start >= OMAP2_SRAM_START &&
+ start < OMAP2_SRAM_START + OMAP2_SRAM_SIZE)
+ return OMAPFB_MEMTYPE_SRAM;
+ else
+ return OMAPFB_MEMTYPE_SDRAM;
+}
+
+static inline int resmap_page_reserved(struct resmap *res_map, unsigned page_nr)
+{
+ return *RESMAP_PTR(res_map, page_nr) & RESMAP_MASK(page_nr) ? 1 : 0;
+}
+
+static inline void resmap_reserve_page(struct resmap *res_map, unsigned page_nr)
+{
+ BUG_ON(resmap_page_reserved(res_map, page_nr));
+ *RESMAP_PTR(res_map, page_nr) |= RESMAP_MASK(page_nr);
+}
+
+static inline void resmap_free_page(struct resmap *res_map, unsigned page_nr)
+{
+ BUG_ON(!resmap_page_reserved(res_map, page_nr));
+ *RESMAP_PTR(res_map, page_nr) &= ~RESMAP_MASK(page_nr);
+}
+
+static void resmap_reserve_region(unsigned long start, size_t size)
+{
+
+ struct resmap *res_map;
+ unsigned start_page;
+ unsigned end_page;
+ int mtype;
+ unsigned i;
+
+ mtype = resmap_mem_type(start);
+ res_map = dispc.res_map[mtype];
+ dev_dbg(dispc.fbdev->dev, "reserve mem type %d start %08lx size %d\n",
+ mtype, start, size);
+ start_page = (start - res_map->start) / PAGE_SIZE;
+ end_page = start_page + PAGE_ALIGN(size) / PAGE_SIZE;
+ for (i = start_page; i < end_page; i++)
+ resmap_reserve_page(res_map, i);
+}
+
+static void resmap_free_region(unsigned long start, size_t size)
+{
+ struct resmap *res_map;
+ unsigned start_page;
+ unsigned end_page;
+ unsigned i;
+ int mtype;
+
+ mtype = resmap_mem_type(start);
+ res_map = dispc.res_map[mtype];
+ dev_dbg(dispc.fbdev->dev, "free mem type %d start %08lx size %d\n",
+ mtype, start, size);
+ start_page = (start - res_map->start) / PAGE_SIZE;
+ end_page = start_page + PAGE_ALIGN(size) / PAGE_SIZE;
+ for (i = start_page; i < end_page; i++)
+ resmap_free_page(res_map, i);
+}
+
+static unsigned long resmap_alloc_region(int mtype, size_t size)
+{
+ unsigned i;
+ unsigned total;
+ unsigned start_page;
+ unsigned long start;
+ struct resmap *res_map = dispc.res_map[mtype];
+
+ BUG_ON(mtype >= DISPC_MEMTYPE_NUM || res_map == NULL || !size);
+
+ size = PAGE_ALIGN(size) / PAGE_SIZE;
+ start_page = 0;
+ total = 0;
+ for (i = 0; i < res_map->page_cnt; i++) {
+ if (resmap_page_reserved(res_map, i)) {
+ start_page = i + 1;
+ total = 0;
+ } else if (++total == size)
+ break;
+ }
+ if (total < size)
+ return 0;
+
+ start = res_map->start + start_page * PAGE_SIZE;
+ resmap_reserve_region(start, size * PAGE_SIZE);
+
+ return start;
+}
+
+/* Note that this will only work for user mappings, we don't deal with
+ * kernel mappings here, so fbcon will keep using the old region.
+ */
+static int omap_dispc_setup_mem(int plane, size_t size, int mem_type,
+ unsigned long *paddr)
+{
+ struct omapfb_mem_region *rg;
+ unsigned long new_addr = 0;
+
+ if ((unsigned)plane > dispc.mem_desc.region_cnt)
+ return -EINVAL;
+ if (mem_type >= DISPC_MEMTYPE_NUM)
+ return -EINVAL;
+ if (dispc.res_map[mem_type] == NULL)
+ return -ENOMEM;
+ rg = &dispc.mem_desc.region[plane];
+ if (size == rg->size && mem_type == rg->type)
+ return 0;
+ if (atomic_read(&dispc.map_count[plane]))
+ return -EBUSY;
+ if (rg->size != 0)
+ resmap_free_region(rg->paddr, rg->size);
+ if (size != 0) {
+ new_addr = resmap_alloc_region(mem_type, size);
+ if (!new_addr) {
+ /* Reallocate old region. */
+ resmap_reserve_region(rg->paddr, rg->size);
+ return -ENOMEM;
+ }
+ }
+ rg->paddr = new_addr;
+ rg->size = size;
+ rg->type = mem_type;
+
+ *paddr = new_addr;
+
+ return 0;
+}
+
+static int setup_fbmem(struct omapfb_mem_desc *req_md)
+{
+ struct omapfb_mem_region *rg;
+ int i;
+ int r;
+ unsigned long mem_start[DISPC_MEMTYPE_NUM];
+ unsigned long mem_end[DISPC_MEMTYPE_NUM];
+
+ if (!req_md->region_cnt) {
+ dev_err(dispc.fbdev->dev, "no memory regions defined\n");
+ return -ENOENT;
+ }
+
+ rg = &req_md->region[0];
+ memset(mem_start, 0xff, sizeof(mem_start));
+ memset(mem_end, 0, sizeof(mem_end));
+
+ for (i = 0; i < req_md->region_cnt; i++, rg++) {
+ int mtype;
+ if (rg->paddr) {
+ rg->alloc = 0;
+ if (rg->vaddr == NULL) {
+ rg->map = 1;
+ if ((r = mmap_kern(rg)) < 0)
+ return r;
+ }
+ } else {
+ if (rg->type != OMAPFB_MEMTYPE_SDRAM) {
+ dev_err(dispc.fbdev->dev,
+ "unsupported memory type\n");
+ return -EINVAL;
+ }
+ rg->alloc = rg->map = 1;
+ if ((r = alloc_fbmem(rg)) < 0)
+ return r;
+ }
+ mtype = rg->type;
+
+ if (rg->paddr < mem_start[mtype])
+ mem_start[mtype] = rg->paddr;
+ if (rg->paddr + rg->size > mem_end[mtype])
+ mem_end[mtype] = rg->paddr + rg->size;
+ }
+
+ for (i = 0; i < DISPC_MEMTYPE_NUM; i++) {
+ unsigned long start;
+ size_t size;
+ if (mem_end[i] == 0)
+ continue;
+ start = mem_start[i];
+ size = mem_end[i] - start;
+ dispc.res_map[i] = init_resmap(start, size);
+ r = -ENOMEM;
+ if (dispc.res_map[i] == NULL)
+ goto fail;
+ /* Initial state is that everything is reserved. This
+ * includes possible holes as well, which will never be
+ * freed.
+ */
+ resmap_reserve_region(start, size);
+ }
+
+ dispc.mem_desc = *req_md;
+
+ return 0;
+fail:
+ for (i = 0; i < DISPC_MEMTYPE_NUM; i++) {
+ if (dispc.res_map[i] != NULL)
+ cleanup_resmap(dispc.res_map[i]);
+ }
+ return r;
+}
+
+static void cleanup_fbmem(void)
+{
+ struct omapfb_mem_region *rg;
+ int i;
+
+ for (i = 0; i < DISPC_MEMTYPE_NUM; i++) {
+ if (dispc.res_map[i] != NULL)
+ cleanup_resmap(dispc.res_map[i]);
+ }
+ rg = &dispc.mem_desc.region[0];
+ for (i = 0; i < dispc.mem_desc.region_cnt; i++, rg++) {
+ if (rg->alloc)
+ free_fbmem(rg);
+ else {
+ if (rg->map)
+ unmap_kern(rg);
+ }
+ }
+}
+
+static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode,
+ struct omapfb_mem_desc *req_vram)
+{
+ int r;
+ u32 l;
+ struct lcd_panel *panel = fbdev->panel;
+ int tmo = 10000;
+ int skip_init = 0;
+ int i;
+
+ memset(&dispc, 0, sizeof(dispc));
+
+ dispc.base = io_p2v(DISPC_BASE);
+ dispc.fbdev = fbdev;
+ dispc.ext_mode = ext_mode;
+
+ init_completion(&dispc.frame_done);
+
+ if ((r = get_dss_clocks()) < 0)
+ return r;
+
+ enable_interface_clocks(1);
+ enable_lcd_clocks(1);
+
+#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
+ l = dispc_read_reg(DISPC_CONTROL);
+ /* LCD enabled ? */
+ if (l & 1) {
+ pr_info("omapfb: skipping hardware initialization\n");
+ skip_init = 1;
+ }
+#endif
+
+ if (!skip_init) {
+ /* Reset monitoring works only w/ the 54M clk */
+ enable_digit_clocks(1);
+
+ /* Soft reset */
+ MOD_REG_FLD(DISPC_SYSCONFIG, 1 << 1, 1 << 1);
+
+ while (!(dispc_read_reg(DISPC_SYSSTATUS) & 1)) {
+ if (!--tmo) {
+ dev_err(dispc.fbdev->dev, "soft reset failed\n");
+ r = -ENODEV;
+ enable_digit_clocks(0);
+ goto fail1;
+ }
+ }
+
+ enable_digit_clocks(0);
+ }
+
+ /* Enable smart idle and autoidle */
+ l = dispc_read_reg(DISPC_CONTROL);
+ l &= ~((3 << 12) | (3 << 3));
+ l |= (2 << 12) | (2 << 3) | (1 << 0);
+ dispc_write_reg(DISPC_SYSCONFIG, l);
+ omap_writel(1 << 0, DSS_BASE + DSS_SYSCONFIG);
+
+ /* Set functional clock autogating */
+ l = dispc_read_reg(DISPC_CONFIG);
+ l |= 1 << 9;
+ dispc_write_reg(DISPC_CONFIG, l);
+
+ l = dispc_read_reg(DISPC_IRQSTATUS);
+ dispc_write_reg(l, DISPC_IRQSTATUS);
+
+ /* Enable those that we handle always */
+ omap_dispc_enable_irqs(DISPC_IRQ_FRAMEMASK);
+
+ if ((r = request_irq(INT_24XX_DSS_IRQ, omap_dispc_irq_handler,
+ 0, MODULE_NAME, fbdev)) < 0) {
+ dev_err(dispc.fbdev->dev, "can't get DSS IRQ\n");
+ goto fail1;
+ }
+
+ /* L3 firewall setting: enable access to OCM RAM */
+ __raw_writel(0x402000b0, io_p2v(0x680050a0));
+
+ if ((r = alloc_palette_ram()) < 0)
+ goto fail2;
+
+ if ((r = setup_fbmem(req_vram)) < 0)
+ goto fail3;
+
+ if (!skip_init) {
+ for (i = 0; i < dispc.mem_desc.region_cnt; i++) {
+ memset(dispc.mem_desc.region[i].vaddr, 0,
+ dispc.mem_desc.region[i].size);
+ }
+
+ /* Set logic clock to fck, pixel clock to fck/2 for now */
+ MOD_REG_FLD(DISPC_DIVISOR, FLD_MASK(16, 8), 1 << 16);
+ MOD_REG_FLD(DISPC_DIVISOR, FLD_MASK(0, 8), 2 << 0);
+
+ setup_plane_fifo(0, ext_mode);
+ setup_plane_fifo(1, ext_mode);
+ setup_plane_fifo(2, ext_mode);
+
+ setup_color_conv_coef();
+
+ set_lcd_tft_mode(panel->config & OMAP_LCDC_PANEL_TFT);
+ set_load_mode(DISPC_LOAD_FRAME_ONLY);
+
+ if (!ext_mode) {
+ set_lcd_data_lines(panel->data_lines);
+ omap_dispc_set_lcd_size(panel->x_res, panel->y_res);
+ set_lcd_timings();
+ } else
+ set_lcd_data_lines(panel->bpp);
+ enable_rfbi_mode(ext_mode);
+ }
+
+ l = dispc_read_reg(DISPC_REVISION);
+ pr_info("omapfb: DISPC version %d.%d initialized\n",
+ l >> 4 & 0x0f, l & 0x0f);
+ enable_lcd_clocks(0);
+
+ return 0;
+fail3:
+ free_palette_ram();
+fail2:
+ free_irq(INT_24XX_DSS_IRQ, fbdev);
+fail1:
+ enable_lcd_clocks(0);
+ enable_interface_clocks(0);
+ put_dss_clocks();
+
+ return r;
+}
+
+static void omap_dispc_cleanup(void)
+{
+ int i;
+
+ omap_dispc_set_update_mode(OMAPFB_UPDATE_DISABLED);
+ /* This will also disable clocks that are on */
+ for (i = 0; i < dispc.mem_desc.region_cnt; i++)
+ omap_dispc_enable_plane(i, 0);
+ cleanup_fbmem();
+ free_palette_ram();
+ free_irq(INT_24XX_DSS_IRQ, dispc.fbdev);
+ enable_interface_clocks(0);
+ put_dss_clocks();
+}
+
+const struct lcd_ctrl omap2_int_ctrl = {
+ .name = "internal",
+ .init = omap_dispc_init,
+ .cleanup = omap_dispc_cleanup,
+ .get_caps = omap_dispc_get_caps,
+ .set_update_mode = omap_dispc_set_update_mode,
+ .get_update_mode = omap_dispc_get_update_mode,
+ .update_window = omap_dispc_update_window,
+ .suspend = omap_dispc_suspend,
+ .resume = omap_dispc_resume,
+ .setup_plane = omap_dispc_setup_plane,
+ .setup_mem = omap_dispc_setup_mem,
+ .set_scale = omap_dispc_set_scale,
+ .enable_plane = omap_dispc_enable_plane,
+ .set_color_key = omap_dispc_set_color_key,
+ .get_color_key = omap_dispc_get_color_key,
+ .mmap = omap_dispc_mmap_user,
+};
--- /dev/null
+#ifndef _DISPC_H
+#define _DISPC_H
+
+#include <linux/interrupt.h>
+
+#define DISPC_PLANE_GFX 0
+#define DISPC_PLANE_VID1 1
+#define DISPC_PLANE_VID2 2
+
+#define DISPC_RGB_1_BPP 0x00
+#define DISPC_RGB_2_BPP 0x01
+#define DISPC_RGB_4_BPP 0x02
+#define DISPC_RGB_8_BPP 0x03
+#define DISPC_RGB_12_BPP 0x04
+#define DISPC_RGB_16_BPP 0x06
+#define DISPC_RGB_24_BPP 0x08
+#define DISPC_RGB_24_BPP_UNPACK_32 0x09
+#define DISPC_YUV2_422 0x0a
+#define DISPC_UYVY_422 0x0b
+
+#define DISPC_BURST_4x32 0
+#define DISPC_BURST_8x32 1
+#define DISPC_BURST_16x32 2
+
+#define DISPC_LOAD_CLUT_AND_FRAME 0x00
+#define DISPC_LOAD_CLUT_ONLY 0x01
+#define DISPC_LOAD_FRAME_ONLY 0x02
+#define DISPC_LOAD_CLUT_ONCE_FRAME 0x03
+
+#define DISPC_TFT_DATA_LINES_12 0
+#define DISPC_TFT_DATA_LINES_16 1
+#define DISPC_TFT_DATA_LINES_18 2
+#define DISPC_TFT_DATA_LINES_24 3
+
+extern void omap_dispc_set_lcd_size(int width, int height);
+
+extern void omap_dispc_enable_lcd_out(int enable);
+extern void omap_dispc_enable_digit_out(int enable);
+
+extern int omap_dispc_request_irq(void (*callback)(void *data), void *data);
+extern void omap_dispc_free_irq(void);
+
+#endif
--- /dev/null
+/*
+ * File: drivers/video/omap/hwa742.c
+ *
+ * Epson HWA742 LCD controller driver
+ *
+ * Copyright (C) 2004-2005 Nokia Corporation
+ * Authors: Juha Yrjölä <juha.yrjola@nokia.com>
+ * Imre Deak <imre.deak@nokia.com>
+ * YUV support: Jussi Laako <jussi.laako@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+
+#include <asm/arch/dma.h>
+#include <asm/arch/omapfb.h>
+#include <asm/arch/hwa742.h>
+
+#define HWA742_REV_CODE_REG 0x0
+#define HWA742_CONFIG_REG 0x2
+#define HWA742_PLL_DIV_REG 0x4
+#define HWA742_PLL_0_REG 0x6
+#define HWA742_PLL_1_REG 0x8
+#define HWA742_PLL_2_REG 0xa
+#define HWA742_PLL_3_REG 0xc
+#define HWA742_PLL_4_REG 0xe
+#define HWA742_CLK_SRC_REG 0x12
+#define HWA742_PANEL_TYPE_REG 0x14
+#define HWA742_H_DISP_REG 0x16
+#define HWA742_H_NDP_REG 0x18
+#define HWA742_V_DISP_1_REG 0x1a
+#define HWA742_V_DISP_2_REG 0x1c
+#define HWA742_V_NDP_REG 0x1e
+#define HWA742_HS_W_REG 0x20
+#define HWA742_HP_S_REG 0x22
+#define HWA742_VS_W_REG 0x24
+#define HWA742_VP_S_REG 0x26
+#define HWA742_PCLK_POL_REG 0x28
+#define HWA742_INPUT_MODE_REG 0x2a
+#define HWA742_TRANSL_MODE_REG1 0x2e
+#define HWA742_DISP_MODE_REG 0x34
+#define HWA742_WINDOW_TYPE 0x36
+#define HWA742_WINDOW_X_START_0 0x38
+#define HWA742_WINDOW_X_START_1 0x3a
+#define HWA742_WINDOW_Y_START_0 0x3c
+#define HWA742_WINDOW_Y_START_1 0x3e
+#define HWA742_WINDOW_X_END_0 0x40
+#define HWA742_WINDOW_X_END_1 0x42
+#define HWA742_WINDOW_Y_END_0 0x44
+#define HWA742_WINDOW_Y_END_1 0x46
+#define HWA742_MEMORY_WRITE_LSB 0x48
+#define HWA742_MEMORY_WRITE_MSB 0x49
+#define HWA742_MEMORY_READ_0 0x4a
+#define HWA742_MEMORY_READ_1 0x4c
+#define HWA742_MEMORY_READ_2 0x4e
+#define HWA742_POWER_SAVE 0x56
+#define HWA742_NDP_CTRL 0x58
+
+#define HWA742_AUTO_UPDATE_TIME (HZ / 20)
+
+/* Reserve 4 request slots for requests in irq context */
+#define REQ_POOL_SIZE 24
+#define IRQ_REQ_POOL_SIZE 4
+
+#define REQ_FROM_IRQ_POOL 0x01
+
+#define REQ_COMPLETE 0
+#define REQ_PENDING 1
+
+struct update_param {
+ int x, y, width, height;
+ int color_mode;
+ int flags;
+};
+
+struct hwa742_request {
+ struct list_head entry;
+ unsigned int flags;
+
+ int (*handler)(struct hwa742_request *req);
+ void (*complete)(void *data);
+ void *complete_data;
+
+ union {
+ struct update_param update;
+ struct completion *sync;
+ } par;
+};
+
+struct {
+ enum omapfb_update_mode update_mode;
+ enum omapfb_update_mode update_mode_before_suspend;
+
+ struct timer_list auto_update_timer;
+ int stop_auto_update;
+ struct omapfb_update_window auto_update_window;
+ unsigned te_connected:1;
+ unsigned vsync_only:1;
+
+ struct hwa742_request req_pool[REQ_POOL_SIZE];
+ struct list_head pending_req_list;
+ struct list_head free_req_list;
+ struct semaphore req_sema;
+ spinlock_t req_lock;
+
+ struct extif_timings reg_timings, lut_timings;
+
+ int prev_color_mode;
+ int prev_flags;
+ int window_type;
+
+ u32 max_transmit_size;
+ u32 extif_clk_period;
+ unsigned long pix_tx_time;
+ unsigned long line_upd_time;
+
+
+ struct omapfb_device *fbdev;
+ struct lcd_ctrl_extif *extif;
+ struct lcd_ctrl *int_ctrl;
+
+ void (*power_up)(struct device *dev);
+ void (*power_down)(struct device *dev);
+} hwa742;
+
+struct lcd_ctrl hwa742_ctrl;
+
+static u8 hwa742_read_reg(u8 reg)
+{
+ u8 data;
+
+ hwa742.extif->set_bits_per_cycle(8);
+ hwa742.extif->write_command(®, 1);
+ hwa742.extif->read_data(&data, 1);
+
+ return data;
+}
+
+static void hwa742_write_reg(u8 reg, u8 data)
+{
+ hwa742.extif->set_bits_per_cycle(8);
+ hwa742.extif->write_command(®, 1);
+ hwa742.extif->write_data(&data, 1);
+}
+
+static void set_window_regs(int x_start, int y_start, int x_end, int y_end)
+{
+ u8 tmp[8];
+ u8 cmd;
+
+ x_end--;
+ y_end--;
+ tmp[0] = x_start;
+ tmp[1] = x_start >> 8;
+ tmp[2] = y_start;
+ tmp[3] = y_start >> 8;
+ tmp[4] = x_end;
+ tmp[5] = x_end >> 8;
+ tmp[6] = y_end;
+ tmp[7] = y_end >> 8;
+
+ hwa742.extif->set_bits_per_cycle(8);
+ cmd = HWA742_WINDOW_X_START_0;
+
+ hwa742.extif->write_command(&cmd, 1);
+
+ hwa742.extif->write_data(tmp, 8);
+}
+
+static void set_format_regs(int conv, int transl, int flags)
+{
+ if (flags & OMAPFB_FORMAT_FLAG_DOUBLE) {
+ hwa742.window_type = ((hwa742.window_type & 0xfc) | 0x01);
+#ifdef VERBOSE
+ dev_dbg(hwa742.fbdev->dev, "hwa742: enabled pixel doubling\n");
+#endif
+ } else {
+ hwa742.window_type = (hwa742.window_type & 0xfc);
+#ifdef VERBOSE
+ dev_dbg(hwa742.fbdev->dev, "hwa742: disabled pixel doubling\n");
+#endif
+ }
+
+ hwa742_write_reg(HWA742_INPUT_MODE_REG, conv);
+ hwa742_write_reg(HWA742_TRANSL_MODE_REG1, transl);
+ hwa742_write_reg(HWA742_WINDOW_TYPE, hwa742.window_type);
+}
+
+static void enable_tearsync(int y, int width, int height, int screen_height,
+ int force_vsync)
+{
+ u8 b;
+
+ b = hwa742_read_reg(HWA742_NDP_CTRL);
+ b |= 1 << 2;
+ hwa742_write_reg(HWA742_NDP_CTRL, b);
+
+ if (likely(hwa742.vsync_only || force_vsync)) {
+ hwa742.extif->enable_tearsync(1, 0);
+ return;
+ }
+
+ if (width * hwa742.pix_tx_time < hwa742.line_upd_time) {
+ hwa742.extif->enable_tearsync(1, 0);
+ return;
+ }
+
+ if ((width * hwa742.pix_tx_time / 1000) * height <
+ (y + height) * (hwa742.line_upd_time / 1000)) {
+ hwa742.extif->enable_tearsync(1, 0);
+ return;
+ }
+
+ hwa742.extif->enable_tearsync(1, y + 1);
+}
+
+static void disable_tearsync(void)
+{
+ u8 b;
+
+ hwa742.extif->enable_tearsync(0, 0);
+
+ b = hwa742_read_reg(HWA742_NDP_CTRL);
+ b &= ~(1 << 2);
+ hwa742_write_reg(HWA742_NDP_CTRL, b);
+}
+
+static inline struct hwa742_request *alloc_req(void)
+{
+ unsigned long flags;
+ struct hwa742_request *req;
+ int req_flags = 0;
+
+ if (!in_interrupt())
+ down(&hwa742.req_sema);
+ else
+ req_flags = REQ_FROM_IRQ_POOL;
+
+ spin_lock_irqsave(&hwa742.req_lock, flags);
+ BUG_ON(list_empty(&hwa742.free_req_list));
+ req = list_entry(hwa742.free_req_list.next,
+ struct hwa742_request, entry);
+ list_del(&req->entry);
+ spin_unlock_irqrestore(&hwa742.req_lock, flags);
+
+ INIT_LIST_HEAD(&req->entry);
+ req->flags = req_flags;
+
+ return req;
+}
+
+static inline void free_req(struct hwa742_request *req)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&hwa742.req_lock, flags);
+
+ list_del(&req->entry);
+ list_add(&req->entry, &hwa742.free_req_list);
+ if (!(req->flags & REQ_FROM_IRQ_POOL))
+ up(&hwa742.req_sema);
+
+ spin_unlock_irqrestore(&hwa742.req_lock, flags);
+}
+
+static void process_pending_requests(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&hwa742.req_lock, flags);
+
+ while (!list_empty(&hwa742.pending_req_list)) {
+ struct hwa742_request *req;
+ void (*complete)(void *);
+ void *complete_data;
+
+ req = list_entry(hwa742.pending_req_list.next,
+ struct hwa742_request, entry);
+ spin_unlock_irqrestore(&hwa742.req_lock, flags);
+
+ if (req->handler(req) == REQ_PENDING)
+ return;
+
+ complete = req->complete;
+ complete_data = req->complete_data;
+ free_req(req);
+
+ if (complete)
+ complete(complete_data);
+
+ spin_lock_irqsave(&hwa742.req_lock, flags);
+ }
+
+ spin_unlock_irqrestore(&hwa742.req_lock, flags);
+}
+
+static void submit_req_list(struct list_head *head)
+{
+ unsigned long flags;
+ int process = 1;
+
+ spin_lock_irqsave(&hwa742.req_lock, flags);
+ if (likely(!list_empty(&hwa742.pending_req_list)))
+ process = 0;
+ list_splice_init(head, hwa742.pending_req_list.prev);
+ spin_unlock_irqrestore(&hwa742.req_lock, flags);
+
+ if (process)
+ process_pending_requests();
+}
+
+static void request_complete(void *data)
+{
+ struct hwa742_request *req = (struct hwa742_request *)data;
+ void (*complete)(void *);
+ void *complete_data;
+
+ complete = req->complete;
+ complete_data = req->complete_data;
+
+ free_req(req);
+
+ if (complete)
+ complete(complete_data);
+
+ process_pending_requests();
+}
+
+static int send_frame_handler(struct hwa742_request *req)
+{
+ struct update_param *par = &req->par.update;
+ int x = par->x;
+ int y = par->y;
+ int w = par->width;
+ int h = par->height;
+ int bpp;
+ int conv, transl;
+ unsigned long offset;
+ int color_mode = par->color_mode;
+ int flags = par->flags;
+ int scr_width = hwa742.fbdev->panel->x_res;
+ int scr_height = hwa742.fbdev->panel->y_res;
+
+#ifdef VERBOSE
+ dev_dbg(hwa742.fbdev->dev, "x %d y %d w %d h %d scr_width %d "
+ "color_mode %d flags %d\n",
+ x, y, w, h, scr_width, color_mode, flags);
+#endif
+
+ switch (color_mode) {
+ case OMAPFB_COLOR_YUV422:
+ bpp = 16;
+ conv = 0x08;
+ transl = 0x25;
+ break;
+ case OMAPFB_COLOR_YUV420:
+ bpp = 12;
+ conv = 0x09;
+ transl = 0x25;
+ break;
+ case OMAPFB_COLOR_RGB565:
+ bpp = 16;
+ conv = 0x01;
+ transl = 0x05;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (hwa742.prev_flags != flags ||
+ hwa742.prev_color_mode != color_mode) {
+ set_format_regs(conv, transl, flags);
+ hwa742.prev_color_mode = color_mode;
+ hwa742.prev_flags = flags;
+ }
+ flags = req->par.update.flags;
+ if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC)
+ enable_tearsync(y, scr_width, h, scr_height,
+ flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC);
+ else
+ disable_tearsync();
+
+ set_window_regs(x, y, x + w, y + h);
+
+ offset = (scr_width * y + x) * bpp / 8;
+
+ hwa742.int_ctrl->setup_plane(OMAPFB_PLANE_GFX,
+ OMAPFB_CHANNEL_OUT_LCD, offset, scr_width, 0, 0, w, h,
+ color_mode);
+
+ hwa742.extif->set_bits_per_cycle(16);
+
+ hwa742.int_ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
+ hwa742.extif->transfer_area(w, h, request_complete, req);
+
+ return REQ_PENDING;
+}
+
+static void send_frame_complete(void *data)
+{
+ hwa742.int_ctrl->enable_plane(OMAPFB_PLANE_GFX, 0);
+}
+
+#define ADD_PREQ(_x, _y, _w, _h) do { \
+ req = alloc_req(); \
+ req->handler = send_frame_handler; \
+ req->complete = send_frame_complete; \
+ req->par.update.x = _x; \
+ req->par.update.y = _y; \
+ req->par.update.width = _w; \
+ req->par.update.height = _h; \
+ req->par.update.color_mode = color_mode;\
+ req->par.update.flags = flags; \
+ list_add_tail(&req->entry, req_head); \
+} while(0)
+
+static void create_req_list(struct omapfb_update_window *win,
+ struct list_head *req_head)
+{
+ struct hwa742_request *req;
+ int x = win->x;
+ int y = win->y;
+ int width = win->width;
+ int height = win->height;
+ int color_mode;
+ int flags;
+
+ flags = win->format & ~OMAPFB_FORMAT_MASK;
+ color_mode = win->format & OMAPFB_FORMAT_MASK;
+
+ if (x & 1) {
+ ADD_PREQ(x, y, 1, height);
+ width--;
+ x++;
+ flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
+ }
+ if (width & ~1) {
+ unsigned int xspan = width & ~1;
+ unsigned int ystart = y;
+ unsigned int yspan = height;
+
+ if (xspan * height * 2 > hwa742.max_transmit_size) {
+ yspan = hwa742.max_transmit_size / (xspan * 2);
+ ADD_PREQ(x, ystart, xspan, yspan);
+ ystart += yspan;
+ yspan = height - yspan;
+ flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
+ }
+
+ ADD_PREQ(x, ystart, xspan, yspan);
+ x += xspan;
+ width -= xspan;
+ flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC;
+ }
+ if (width)
+ ADD_PREQ(x, y, 1, height);
+}
+
+static void auto_update_complete(void *data)
+{
+ if (!hwa742.stop_auto_update)
+ mod_timer(&hwa742.auto_update_timer,
+ jiffies + HWA742_AUTO_UPDATE_TIME);
+}
+
+static void hwa742_update_window_auto(unsigned long arg)
+{
+ LIST_HEAD(req_list);
+ struct hwa742_request *last;
+
+ create_req_list(&hwa742.auto_update_window, &req_list);
+ last = list_entry(req_list.prev, struct hwa742_request, entry);
+
+ last->complete = auto_update_complete;
+ last->complete_data = NULL;
+
+ submit_req_list(&req_list);
+}
+
+int hwa742_update_window_async(struct fb_info *fbi,
+ struct omapfb_update_window *win,
+ void (*complete_callback)(void *arg),
+ void *complete_callback_data)
+{
+ LIST_HEAD(req_list);
+ struct hwa742_request *last;
+ int r = 0;
+
+ if (hwa742.update_mode != OMAPFB_MANUAL_UPDATE) {
+ dev_dbg(hwa742.fbdev->dev, "invalid update mode\n");
+ r = -EINVAL;
+ goto out;
+ }
+ if (unlikely(win->format &
+ ~(0x03 | OMAPFB_FORMAT_FLAG_DOUBLE |
+ OMAPFB_FORMAT_FLAG_TEARSYNC | OMAPFB_FORMAT_FLAG_FORCE_VSYNC))) {
+ dev_dbg(hwa742.fbdev->dev, "invalid window flag");
+ r = -EINVAL;
+ goto out;
+ }
+
+ create_req_list(win, &req_list);
+ last = list_entry(req_list.prev, struct hwa742_request, entry);
+
+ last->complete = complete_callback;
+ last->complete_data = (void *)complete_callback_data;
+
+ submit_req_list(&req_list);
+
+out:
+ return r;
+}
+EXPORT_SYMBOL(hwa742_update_window_async);
+
+static int hwa742_setup_plane(int plane, int channel_out,
+ unsigned long offset, int screen_width,
+ int pos_x, int pos_y, int width, int height,
+ int color_mode)
+{
+ if (plane != OMAPFB_PLANE_GFX ||
+ channel_out != OMAPFB_CHANNEL_OUT_LCD)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int hwa742_enable_plane(int plane, int enable)
+{
+ if (plane != 0)
+ return -EINVAL;
+
+ hwa742.int_ctrl->enable_plane(plane, enable);
+
+ return 0;
+}
+
+static int sync_handler(struct hwa742_request *req)
+{
+ complete(req->par.sync);
+ return REQ_COMPLETE;
+}
+
+static void hwa742_sync(void)
+{
+ LIST_HEAD(req_list);
+ struct hwa742_request *req;
+ struct completion comp;
+
+ req = alloc_req();
+
+ req->handler = sync_handler;
+ req->complete = NULL;
+ init_completion(&comp);
+ req->par.sync = ∁
+
+ list_add(&req->entry, &req_list);
+ submit_req_list(&req_list);
+
+ wait_for_completion(&comp);
+}
+
+static void hwa742_bind_client(struct omapfb_notifier_block *nb)
+{
+ dev_dbg(hwa742.fbdev->dev, "update_mode %d\n", hwa742.update_mode);
+ if (hwa742.update_mode == OMAPFB_MANUAL_UPDATE) {
+ omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_READY);
+ }
+}
+
+static int hwa742_set_update_mode(enum omapfb_update_mode mode)
+{
+ if (mode != OMAPFB_MANUAL_UPDATE && mode != OMAPFB_AUTO_UPDATE &&
+ mode != OMAPFB_UPDATE_DISABLED)
+ return -EINVAL;
+
+ if (mode == hwa742.update_mode)
+ return 0;
+
+ dev_info(hwa742.fbdev->dev, "HWA742: setting update mode to %s\n",
+ mode == OMAPFB_UPDATE_DISABLED ? "disabled" :
+ (mode == OMAPFB_AUTO_UPDATE ? "auto" : "manual"));
+
+ switch (hwa742.update_mode) {
+ case OMAPFB_MANUAL_UPDATE:
+ omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_DISABLED);
+ break;
+ case OMAPFB_AUTO_UPDATE:
+ hwa742.stop_auto_update = 1;
+ del_timer_sync(&hwa742.auto_update_timer);
+ break;
+ case OMAPFB_UPDATE_DISABLED:
+ break;
+ }
+
+ hwa742.update_mode = mode;
+ hwa742_sync();
+ hwa742.stop_auto_update = 0;
+
+ switch (mode) {
+ case OMAPFB_MANUAL_UPDATE:
+ omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_READY);
+ break;
+ case OMAPFB_AUTO_UPDATE:
+ hwa742_update_window_auto(0);
+ break;
+ case OMAPFB_UPDATE_DISABLED:
+ break;
+ }
+
+ return 0;
+}
+
+static enum omapfb_update_mode hwa742_get_update_mode(void)
+{
+ return hwa742.update_mode;
+}
+
+static unsigned long round_to_extif_ticks(unsigned long ps, int div)
+{
+ int bus_tick = hwa742.extif_clk_period * div;
+ return (ps + bus_tick - 1) / bus_tick * bus_tick;
+}
+
+static int calc_reg_timing(unsigned long sysclk, int div)
+{
+ struct extif_timings *t;
+ unsigned long systim;
+
+ /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns,
+ * AccessTime 2 ns + 12.2 ns (regs),
+ * WEOffTime = WEOnTime + 1 ns,
+ * REOffTime = REOnTime + 16 ns (regs),
+ * CSOffTime = REOffTime + 1 ns
+ * ReadCycle = 2ns + 2*SYSCLK (regs),
+ * WriteCycle = 2*SYSCLK + 2 ns,
+ * CSPulseWidth = 10 ns */
+ systim = 1000000000 / (sysclk / 1000);
+ dev_dbg(hwa742.fbdev->dev, "HWA742 systim %lu ps extif_clk_period %u ps"
+ "extif_clk_div %d\n", systim, hwa742.extif_clk_period, div);
+
+ t = &hwa742.reg_timings;
+ memset(t, 0, sizeof(*t));
+ t->clk_div = div;
+ t->cs_on_time = 0;
+ t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->access_time = round_to_extif_ticks(t->re_on_time + 12200, div);
+ t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div);
+ t->re_off_time = round_to_extif_ticks(t->re_on_time + 16000, div);
+ t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div);
+ t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
+ if (t->we_cycle_time < t->we_off_time)
+ t->we_cycle_time = t->we_off_time;
+ t->re_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
+ if (t->re_cycle_time < t->re_off_time)
+ t->re_cycle_time = t->re_off_time;
+ t->cs_pulse_width = 0;
+
+ dev_dbg(hwa742.fbdev->dev, "[reg]cson %d csoff %d reon %d reoff %d\n",
+ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
+ dev_dbg(hwa742.fbdev->dev, "[reg]weon %d weoff %d recyc %d wecyc %d\n",
+ t->we_on_time, t->we_off_time, t->re_cycle_time,
+ t->we_cycle_time);
+ dev_dbg(hwa742.fbdev->dev, "[reg]rdaccess %d cspulse %d\n",
+ t->access_time, t->cs_pulse_width);
+
+ return hwa742.extif->convert_timings(t);
+}
+
+static int calc_lut_timing(unsigned long sysclk, int div)
+{
+ struct extif_timings *t;
+ unsigned long systim;
+
+ /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns,
+ * AccessTime 2 ns + 4 * SYSCLK + 26 (lut),
+ * WEOffTime = WEOnTime + 1 ns,
+ * REOffTime = REOnTime + 4*SYSCLK + 26 ns (lut),
+ * CSOffTime = REOffTime + 1 ns
+ * ReadCycle = 2ns + 4*SYSCLK + 26 ns (lut),
+ * WriteCycle = 2*SYSCLK + 2 ns,
+ * CSPulseWidth = 10 ns
+ */
+ systim = 1000000000 / (sysclk / 1000);
+ dev_dbg(hwa742.fbdev->dev, "HWA742 systim %lu ps extif_clk_period %u ps"
+ "extif_clk_div %d\n", systim, hwa742.extif_clk_period, div);
+
+ t = &hwa742.lut_timings;
+ memset(t, 0, sizeof(*t));
+
+ t->clk_div = div;
+
+ t->cs_on_time = 0;
+ t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div);
+ t->access_time = round_to_extif_ticks(t->re_on_time + 4 * systim +
+ 26000, div);
+ t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div);
+ t->re_off_time = round_to_extif_ticks(t->re_on_time + 4 * systim +
+ 26000, div);
+ t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div);
+ t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div);
+ if (t->we_cycle_time < t->we_off_time)
+ t->we_cycle_time = t->we_off_time;
+ t->re_cycle_time = round_to_extif_ticks(2000 + 4 * systim + 26000, div);
+ if (t->re_cycle_time < t->re_off_time)
+ t->re_cycle_time = t->re_off_time;
+ t->cs_pulse_width = 0;
+
+ dev_dbg(hwa742.fbdev->dev, "[lut]cson %d csoff %d reon %d reoff %d\n",
+ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
+ dev_dbg(hwa742.fbdev->dev, "[lut]weon %d weoff %d recyc %d wecyc %d\n",
+ t->we_on_time, t->we_off_time, t->re_cycle_time,
+ t->we_cycle_time);
+ dev_dbg(hwa742.fbdev->dev, "[lut]rdaccess %d cspulse %d\n",
+ t->access_time, t->cs_pulse_width);
+
+ return hwa742.extif->convert_timings(t);
+}
+
+static int calc_extif_timings(unsigned long sysclk, int *extif_mem_div)
+{
+ int max_clk_div;
+ int div;
+
+ hwa742.extif->get_clk_info(&hwa742.extif_clk_period, &max_clk_div);
+ for (div = 1; div < max_clk_div; div++) {
+ if (calc_reg_timing(sysclk, div) == 0)
+ break;
+ }
+ if (div > max_clk_div)
+ goto err;
+
+ *extif_mem_div = div;
+
+ for (div = 1; div < max_clk_div; div++) {
+ if (calc_lut_timing(sysclk, div) == 0)
+ break;
+ }
+
+ if (div > max_clk_div)
+ goto err;
+
+ return 0;
+
+err:
+ dev_err(hwa742.fbdev->dev, "can't setup timings\n");
+ return -1;
+}
+
+static void calc_hwa742_clk_rates(unsigned long ext_clk,
+ unsigned long *sys_clk, unsigned long *pix_clk)
+{
+ int pix_clk_src;
+ int sys_div = 0, sys_mul = 0;
+ int pix_div;
+
+ pix_clk_src = hwa742_read_reg(HWA742_CLK_SRC_REG);
+ pix_div = ((pix_clk_src >> 3) & 0x1f) + 1;
+ if ((pix_clk_src & (0x3 << 1)) == 0) {
+ /* Source is the PLL */
+ sys_div = (hwa742_read_reg(HWA742_PLL_DIV_REG) & 0x3f) + 1;
+ sys_mul = (hwa742_read_reg(HWA742_PLL_4_REG) & 0x7f) + 1;
+ *sys_clk = ext_clk * sys_mul / sys_div;
+ } else /* else source is ext clk, or oscillator */
+ *sys_clk = ext_clk;
+
+ *pix_clk = *sys_clk / pix_div; /* HZ */
+ dev_dbg(hwa742.fbdev->dev,
+ "ext_clk %ld pix_src %d pix_div %d sys_div %d sys_mul %d\n",
+ ext_clk, pix_clk_src & (0x3 << 1), pix_div, sys_div, sys_mul);
+ dev_dbg(hwa742.fbdev->dev, "sys_clk %ld pix_clk %ld\n",
+ *sys_clk, *pix_clk);
+}
+
+
+static int setup_tearsync(unsigned long pix_clk, int extif_div)
+{
+ int hdisp, vdisp;
+ int hndp, vndp;
+ int hsw, vsw;
+ int hs, vs;
+ int hs_pol_inv, vs_pol_inv;
+ int use_hsvs, use_ndp;
+ u8 b;
+
+ hsw = hwa742_read_reg(HWA742_HS_W_REG);
+ vsw = hwa742_read_reg(HWA742_VS_W_REG);
+ hs_pol_inv = !(hsw & 0x80);
+ vs_pol_inv = !(vsw & 0x80);
+ hsw = hsw & 0x7f;
+ vsw = vsw & 0x3f;
+
+ hdisp = (hwa742_read_reg(HWA742_H_DISP_REG) & 0x7f) * 8;
+ vdisp = hwa742_read_reg(HWA742_V_DISP_1_REG) +
+ ((hwa742_read_reg(HWA742_V_DISP_2_REG) & 0x3) << 8);
+
+ hndp = hwa742_read_reg(HWA742_H_NDP_REG) & 0x7f;
+ vndp = hwa742_read_reg(HWA742_V_NDP_REG);
+
+ /* time to transfer one pixel (16bpp) in ps */
+ hwa742.pix_tx_time = hwa742.reg_timings.we_cycle_time;
+ if (hwa742.extif->get_max_tx_rate != NULL) {
+ /* The external interface might have a rate limitation,
+ * if so, we have to maximize our transfer rate.
+ */
+ unsigned long min_tx_time;
+ unsigned long max_tx_rate = hwa742.extif->get_max_tx_rate();
+
+ dev_dbg(hwa742.fbdev->dev, "max_tx_rate %ld HZ\n",
+ max_tx_rate);
+ min_tx_time = 1000000000 / (max_tx_rate / 1000); /* ps */
+ if (hwa742.pix_tx_time < min_tx_time)
+ hwa742.pix_tx_time = min_tx_time;
+ }
+
+ /* time to update one line in ps */
+ hwa742.line_upd_time = (hdisp + hndp) * 1000000 / (pix_clk / 1000);
+ hwa742.line_upd_time *= 1000;
+ if (hdisp * hwa742.pix_tx_time > hwa742.line_upd_time)
+ /* transfer speed too low, we might have to use both
+ * HS and VS */
+ use_hsvs = 1;
+ else
+ /* decent transfer speed, we'll always use only VS */
+ use_hsvs = 0;
+
+ if (use_hsvs && (hs_pol_inv || vs_pol_inv)) {
+ /* HS or'ed with VS doesn't work, use the active high
+ * TE signal based on HNDP / VNDP */
+ use_ndp = 1;
+ hs_pol_inv = 0;
+ vs_pol_inv = 0;
+ hs = hndp;
+ vs = vndp;
+ } else {
+ /* Use HS or'ed with VS as a TE signal if both are needed
+ * or VNDP if only vsync is needed. */
+ use_ndp = 0;
+ hs = hsw;
+ vs = vsw;
+ if (!use_hsvs) {
+ hs_pol_inv = 0;
+ vs_pol_inv = 0;
+ }
+ }
+
+ hs = hs * 1000000 / (pix_clk / 1000); /* ps */
+ hs *= 1000;
+
+ vs = vs * (hdisp + hndp) * 1000000 / (pix_clk / 1000); /* ps */
+ vs *= 1000;
+
+ if (vs <= hs)
+ return -EDOM;
+ /* set VS to 120% of HS to minimize VS detection time */
+ vs = hs * 12 / 10;
+ /* minimize HS too */
+ hs = 10000;
+
+ b = hwa742_read_reg(HWA742_NDP_CTRL);
+ b &= ~0x3;
+ b |= use_hsvs ? 1 : 0;
+ b |= (use_ndp && use_hsvs) ? 0 : 2;
+ hwa742_write_reg(HWA742_NDP_CTRL, b);
+
+ hwa742.vsync_only = !use_hsvs;
+
+ dev_dbg(hwa742.fbdev->dev,
+ "pix_clk %ld HZ pix_tx_time %ld ps line_upd_time %ld ps\n",
+ pix_clk, hwa742.pix_tx_time, hwa742.line_upd_time);
+ dev_dbg(hwa742.fbdev->dev,
+ "hs %d ps vs %d ps mode %d vsync_only %d\n",
+ hs, vs, (b & 0x3), !use_hsvs);
+
+ return hwa742.extif->setup_tearsync(1, hs, vs,
+ hs_pol_inv, vs_pol_inv, extif_div);
+}
+
+static void hwa742_get_caps(int plane, struct omapfb_caps *caps)
+{
+ hwa742.int_ctrl->get_caps(plane, caps);
+ caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE |
+ OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE;
+ if (hwa742.te_connected)
+ caps->ctrl |= OMAPFB_CAPS_TEARSYNC;
+ caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) |
+ (1 << OMAPFB_COLOR_YUV420);
+}
+
+static void hwa742_suspend(void)
+{
+ hwa742.update_mode_before_suspend = hwa742.update_mode;
+ hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
+ /* Enable sleep mode */
+ hwa742_write_reg(HWA742_POWER_SAVE, 1 << 1);
+ if (hwa742.power_down != NULL)
+ hwa742.power_down(hwa742.fbdev->dev);
+}
+
+static void hwa742_resume(void)
+{
+ if (hwa742.power_up != NULL)
+ hwa742.power_up(hwa742.fbdev->dev);
+ /* Disable sleep mode */
+ hwa742_write_reg(HWA742_POWER_SAVE, 0);
+ while (1) {
+ /* Loop until PLL output is stabilized */
+ if (hwa742_read_reg(HWA742_PLL_DIV_REG) & (1 << 7))
+ break;
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(msecs_to_jiffies(5));
+ }
+ hwa742_set_update_mode(hwa742.update_mode_before_suspend);
+}
+
+static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
+ struct omapfb_mem_desc *req_vram)
+{
+ int r = 0, i;
+ u8 rev, conf;
+ unsigned long ext_clk;
+ unsigned long sys_clk, pix_clk;
+ int extif_mem_div;
+ struct omapfb_platform_data *omapfb_conf;
+ struct hwa742_platform_data *ctrl_conf;
+
+ BUG_ON(!fbdev->ext_if || !fbdev->int_ctrl);
+
+ hwa742.fbdev = fbdev;
+ hwa742.extif = fbdev->ext_if;
+ hwa742.int_ctrl = fbdev->int_ctrl;
+
+ omapfb_conf = fbdev->dev->platform_data;
+ ctrl_conf = omapfb_conf->ctrl_platform_data;
+
+ if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) {
+ dev_err(fbdev->dev, "HWA742: missing platform data\n");
+ r = -ENOENT;
+ goto err1;
+ }
+
+ hwa742.power_down = ctrl_conf->power_down;
+ hwa742.power_up = ctrl_conf->power_up;
+
+ spin_lock_init(&hwa742.req_lock);
+
+ if ((r = hwa742.int_ctrl->init(fbdev, 1, req_vram)) < 0)
+ goto err1;
+
+ if ((r = hwa742.extif->init(fbdev)) < 0)
+ goto err2;
+
+ ext_clk = ctrl_conf->get_clock_rate(fbdev->dev);
+ if ((r = calc_extif_timings(ext_clk, &extif_mem_div)) < 0)
+ goto err3;
+ hwa742.extif->set_timings(&hwa742.reg_timings);
+ if (hwa742.power_up != NULL)
+ hwa742.power_up(fbdev->dev);
+
+ calc_hwa742_clk_rates(ext_clk, &sys_clk, &pix_clk);
+ if ((r = calc_extif_timings(sys_clk, &extif_mem_div)) < 0)
+ goto err4;
+ hwa742.extif->set_timings(&hwa742.reg_timings);
+
+ rev = hwa742_read_reg(HWA742_REV_CODE_REG);
+ if ((rev & 0xfc) != 0x80) {
+ dev_err(fbdev->dev, "HWA742: invalid revision %02x\n", rev);
+ r = -ENODEV;
+ goto err4;
+ }
+
+
+ if (!(hwa742_read_reg(HWA742_PLL_DIV_REG) & 0x80)) {
+ dev_err(fbdev->dev,
+ "HWA742: controller not initialized by the bootloader\n");
+ r = -ENODEV;
+ goto err4;
+ }
+
+ if (ctrl_conf->te_connected) {
+ if ((r = setup_tearsync(pix_clk, extif_mem_div)) < 0) {
+ dev_err(hwa742.fbdev->dev,
+ "HWA742: can't setup tearing synchronization\n");
+ goto err4;
+ }
+ hwa742.te_connected = 1;
+ }
+
+ hwa742.max_transmit_size = hwa742.extif->max_transmit_size;
+
+ hwa742.update_mode = OMAPFB_UPDATE_DISABLED;
+
+ hwa742.auto_update_window.x = 0;
+ hwa742.auto_update_window.y = 0;
+ hwa742.auto_update_window.width = fbdev->panel->x_res;
+ hwa742.auto_update_window.height = fbdev->panel->y_res;
+ hwa742.auto_update_window.format = 0;
+
+ init_timer(&hwa742.auto_update_timer);
+ hwa742.auto_update_timer.function = hwa742_update_window_auto;
+ hwa742.auto_update_timer.data = 0;
+
+ hwa742.prev_color_mode = -1;
+ hwa742.prev_flags = 0;
+
+ hwa742.fbdev = fbdev;
+
+ INIT_LIST_HEAD(&hwa742.free_req_list);
+ INIT_LIST_HEAD(&hwa742.pending_req_list);
+ for (i = 0; i < ARRAY_SIZE(hwa742.req_pool); i++)
+ list_add(&hwa742.req_pool[i].entry, &hwa742.free_req_list);
+ BUG_ON(i <= IRQ_REQ_POOL_SIZE);
+ sema_init(&hwa742.req_sema, i - IRQ_REQ_POOL_SIZE);
+
+ conf = hwa742_read_reg(HWA742_CONFIG_REG);
+ dev_info(fbdev->dev, ": Epson HWA742 LCD controller rev %d "
+ "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
+
+ return 0;
+err4:
+ if (hwa742.power_down != NULL)
+ hwa742.power_down(fbdev->dev);
+err3:
+ hwa742.extif->cleanup();
+err2:
+ hwa742.int_ctrl->cleanup();
+err1:
+ return r;
+}
+
+static void hwa742_cleanup(void)
+{
+ hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
+ hwa742.extif->cleanup();
+ hwa742.int_ctrl->cleanup();
+ if (hwa742.power_down != NULL)
+ hwa742.power_down(hwa742.fbdev->dev);
+}
+
+struct lcd_ctrl hwa742_ctrl = {
+ .name = "hwa742",
+ .init = hwa742_init,
+ .cleanup = hwa742_cleanup,
+ .bind_client = hwa742_bind_client,
+ .get_caps = hwa742_get_caps,
+ .set_update_mode = hwa742_set_update_mode,
+ .get_update_mode = hwa742_get_update_mode,
+ .setup_plane = hwa742_setup_plane,
+ .enable_plane = hwa742_enable_plane,
+ .update_window = hwa742_update_window_async,
+ .sync = hwa742_sync,
+ .suspend = hwa742_suspend,
+ .resume = hwa742_resume,
+};
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_ams_delta.c
+ *
+ * Based on drivers/video/omap/lcd_inn1510.c
+ *
+ * LCD panel support for the Amstrad E3 (Delta) videophone.
+ *
+ * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/delay.h>
+#include <asm/io.h>
+
+#include <asm/arch/board-ams-delta.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/omapfb.h>
+
+#define AMS_DELTA_DEFAULT_CONTRAST 112
+
+static int ams_delta_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void ams_delta_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int ams_delta_panel_enable(struct lcd_panel *panel)
+{
+ ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
+ AMS_DELTA_LATCH2_LCD_NDISP);
+ ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
+ AMS_DELTA_LATCH2_LCD_VBLEN);
+
+ omap_writeb(1, OMAP_PWL_CLK_ENABLE);
+ omap_writeb(AMS_DELTA_DEFAULT_CONTRAST, OMAP_PWL_ENABLE);
+
+ return 0;
+}
+
+static void ams_delta_panel_disable(struct lcd_panel *panel)
+{
+ ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
+ ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
+}
+
+static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+static struct lcd_panel ams_delta_panel = {
+ .name = "ams-delta",
+ .config = 0,
+
+ .bpp = 12,
+ .data_lines = 16,
+ .x_res = 480,
+ .y_res = 320,
+ .pixel_clock = 4687,
+ .hsw = 3,
+ .hfp = 1,
+ .hbp = 1,
+ .vsw = 1,
+ .vfp = 0,
+ .vbp = 0,
+ .pcd = 0,
+ .acb = 37,
+
+ .init = ams_delta_panel_init,
+ .cleanup = ams_delta_panel_cleanup,
+ .enable = ams_delta_panel_enable,
+ .disable = ams_delta_panel_disable,
+ .get_caps = ams_delta_panel_get_caps,
+};
+
+static int ams_delta_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&ams_delta_panel);
+ return 0;
+}
+
+static int ams_delta_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int ams_delta_panel_suspend(struct platform_device *pdev,
+ pm_message_t mesg)
+{
+ return 0;
+}
+
+static int ams_delta_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver ams_delta_panel_driver = {
+ .probe = ams_delta_panel_probe,
+ .remove = ams_delta_panel_remove,
+ .suspend = ams_delta_panel_suspend,
+ .resume = ams_delta_panel_resume,
+ .driver = {
+ .name = "lcd_ams_delta",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int ams_delta_panel_drv_init(void)
+{
+ return platform_driver_register(&ams_delta_panel_driver);
+}
+
+static void ams_delta_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&ams_delta_panel_driver);
+}
+
+module_init(ams_delta_panel_drv_init);
+module_exit(ams_delta_panel_drv_cleanup);
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_apollon.c
+ *
+ * LCD panel support for the Samsung OMAP2 Apollon board
+ *
+ * Copyright (C) 2005,2006 Samsung Electronics
+ * Author: Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * Derived from drivers/video/omap/lcd-h4.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/omapfb.h>
+
+/* #define USE_35INCH_LCD 1 */
+
+static int apollon_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ /* configure LCD PWR_EN */
+ omap_cfg_reg(M21_242X_GPIO11);
+ return 0;
+}
+
+static void apollon_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int apollon_panel_enable(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+static void apollon_panel_disable(struct lcd_panel *panel)
+{
+}
+
+static unsigned long apollon_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel apollon_panel = {
+ .name = "apollon",
+ .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
+ OMAP_LCDC_INV_HSYNC,
+
+ .bpp = 16,
+ .data_lines = 18,
+#ifdef USE_35INCH_LCD
+ .x_res = 240,
+ .y_res = 320,
+ .hsw = 2,
+ .hfp = 3,
+ .hbp = 9,
+ .vsw = 4,
+ .vfp = 3,
+ .vbp = 5,
+#else
+ .x_res = 480,
+ .y_res = 272,
+ .hsw = 41,
+ .hfp = 2,
+ .hbp = 2,
+ .vsw = 10,
+ .vfp = 2,
+ .vbp = 2,
+#endif
+ .pixel_clock = 6250,
+
+ .init = apollon_panel_init,
+ .cleanup = apollon_panel_cleanup,
+ .enable = apollon_panel_enable,
+ .disable = apollon_panel_disable,
+ .get_caps = apollon_panel_get_caps,
+};
+
+static int apollon_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&apollon_panel);
+ return 0;
+}
+
+static int apollon_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int apollon_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int apollon_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver apollon_panel_driver = {
+ .probe = apollon_panel_probe,
+ .remove = apollon_panel_remove,
+ .suspend = apollon_panel_suspend,
+ .resume = apollon_panel_resume,
+ .driver = {
+ .name = "apollon_lcd",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init apollon_panel_drv_init(void)
+{
+ return platform_driver_register(&apollon_panel_driver);
+}
+
+static void __exit apollon_panel_drv_exit(void)
+{
+ platform_driver_unregister(&apollon_panel_driver);
+}
+
+module_init(apollon_panel_drv_init);
+module_exit(apollon_panel_drv_exit);
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-h2.c
+ *
+ * LCD panel support for the TI OMAP H2 board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/tsc2101.h>
+
+#include <asm/arch/mux.h>
+#include <asm/arch/omapfb.h>
+
+static struct {
+ struct platform_device *lcd_dev;
+ struct spi_device *tsc2101_dev;
+} h2_panel_dev;
+
+static int h2_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void h2_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int h2_panel_enable(struct lcd_panel *panel)
+{
+ int r;
+
+ /* Assert LCD_EN, BKLIGHT_EN pins on LCD panel
+ * page2, GPIO config reg, GPIO(0,1) to out and asserted
+ */
+ r = tsc2101_write_sync(h2_panel_dev.tsc2101_dev, 2, 0x23, 0xcc00);
+ if (r < 0)
+ dev_err(&h2_panel_dev.lcd_dev->dev,
+ "failed to enable LCD panel\n");
+
+ return r;
+}
+
+static void h2_panel_disable(struct lcd_panel *panel)
+{
+ /* Deassert LCD_EN and BKLIGHT_EN pins on LCD panel
+ * page2, GPIO config reg, GPIO(0,1) to out and deasserted
+ */
+ if (tsc2101_write_sync(h2_panel_dev.tsc2101_dev, 2, 0x23, 0x8800))
+ dev_err(&h2_panel_dev.lcd_dev->dev,
+ "failed to disable LCD panel\n");
+}
+
+static unsigned long h2_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel h2_panel = {
+ .name = "h2",
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 240,
+ .y_res = 320,
+ .pixel_clock = 5000,
+ .hsw = 12,
+ .hfp = 12,
+ .hbp = 46,
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 0,
+
+ .init = h2_panel_init,
+ .cleanup = h2_panel_cleanup,
+ .enable = h2_panel_enable,
+ .disable = h2_panel_disable,
+ .get_caps = h2_panel_get_caps,
+};
+
+static int h2_panel_probe(struct platform_device *pdev)
+{
+ struct spi_device *tsc2101;
+
+ tsc2101 = pdev->dev.platform_data;
+ if (tsc2101 == NULL) {
+ dev_err(&pdev->dev, "no platform data\n");
+ return -ENODEV;
+ }
+ if (strncmp(tsc2101->modalias, "tsc2101", 8) != 0) {
+ dev_err(&pdev->dev, "tsc2101 not found\n");
+ return -EINVAL;
+ }
+ h2_panel_dev.lcd_dev = pdev;
+ h2_panel_dev.tsc2101_dev = tsc2101;
+ omapfb_register_panel(&h2_panel);
+ return 0;
+}
+
+static int h2_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int h2_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int h2_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver h2_panel_driver = {
+ .probe = h2_panel_probe,
+ .remove = h2_panel_remove,
+ .suspend = h2_panel_suspend,
+ .resume = h2_panel_resume,
+ .driver = {
+ .name = "lcd_h2",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int h2_panel_drv_init(void)
+{
+ return platform_driver_register(&h2_panel_driver);
+}
+
+static void h2_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&h2_panel_driver);
+}
+
+module_init(h2_panel_drv_init);
+module_exit(h2_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-h3.c
+ *
+ * LCD panel support for the TI OMAP H3 board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/tps65010.h>
+#include <asm/arch/omapfb.h>
+
+#define MODULE_NAME "omapfb-lcd_h3"
+
+#define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args)
+
+static int h3_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void h3_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int h3_panel_enable(struct lcd_panel *panel)
+{
+ int r = 0;
+
+ /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
+ r = tps65010_set_gpio_out_value(GPIO1, HIGH);
+ if (!r)
+ r = tps65010_set_gpio_out_value(GPIO2, HIGH);
+ if (r)
+ pr_err("Unable to turn on LCD panel\n");
+
+ return r;
+}
+
+static void h3_panel_disable(struct lcd_panel *panel)
+{
+ int r = 0;
+
+ /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
+ r = tps65010_set_gpio_out_value(GPIO1, LOW);
+ if (!r)
+ tps65010_set_gpio_out_value(GPIO2, LOW);
+ if (r)
+ pr_err("Unable to turn off LCD panel\n");
+}
+
+static unsigned long h3_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel h3_panel = {
+ .name = "h3",
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .data_lines = 16,
+ .bpp = 16,
+ .x_res = 240,
+ .y_res = 320,
+ .pixel_clock = 12000,
+ .hsw = 12,
+ .hfp = 14,
+ .hbp = 72 - 12,
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 0,
+ .pcd = 0,
+
+ .init = h3_panel_init,
+ .cleanup = h3_panel_cleanup,
+ .enable = h3_panel_enable,
+ .disable = h3_panel_disable,
+ .get_caps = h3_panel_get_caps,
+};
+
+static int h3_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&h3_panel);
+ return 0;
+}
+
+static int h3_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int h3_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int h3_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver h3_panel_driver = {
+ .probe = h3_panel_probe,
+ .remove = h3_panel_remove,
+ .suspend = h3_panel_suspend,
+ .resume = h3_panel_resume,
+ .driver = {
+ .name = "lcd_h3",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int h3_panel_drv_init(void)
+{
+ return platform_driver_register(&h3_panel_driver);
+}
+
+static void h3_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&h3_panel_driver);
+}
+
+module_init(h3_panel_drv_init);
+module_exit(h3_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-h4.c
+ *
+ * LCD panel support for the TI OMAP H4 board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/omapfb.h>
+
+static int h4_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void h4_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int h4_panel_enable(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+static void h4_panel_disable(struct lcd_panel *panel)
+{
+}
+
+static unsigned long h4_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel h4_panel = {
+ .name = "h4",
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 240,
+ .y_res = 320,
+ .pixel_clock = 6250,
+ .hsw = 15,
+ .hfp = 15,
+ .hbp = 60,
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 1,
+
+ .init = h4_panel_init,
+ .cleanup = h4_panel_cleanup,
+ .enable = h4_panel_enable,
+ .disable = h4_panel_disable,
+ .get_caps = h4_panel_get_caps,
+};
+
+static int h4_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&h4_panel);
+ return 0;
+}
+
+static int h4_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int h4_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int h4_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver h4_panel_driver = {
+ .probe = h4_panel_probe,
+ .remove = h4_panel_remove,
+ .suspend = h4_panel_suspend,
+ .resume = h4_panel_resume,
+ .driver = {
+ .name = "lcd_h4",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int h4_panel_drv_init(void)
+{
+ return platform_driver_register(&h4_panel_driver);
+}
+
+static void h4_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&h4_panel_driver);
+}
+
+module_init(h4_panel_drv_init);
+module_exit(h4_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-inn1510.c
+ *
+ * LCD panel support for the TI OMAP1510 Innovator board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/fpga.h>
+#include <asm/arch/omapfb.h>
+
+static int innovator1510_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void innovator1510_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int innovator1510_panel_enable(struct lcd_panel *panel)
+{
+ fpga_write(0x7, OMAP1510_FPGA_LCD_PANEL_CONTROL);
+ return 0;
+}
+
+static void innovator1510_panel_disable(struct lcd_panel *panel)
+{
+ fpga_write(0x0, OMAP1510_FPGA_LCD_PANEL_CONTROL);
+}
+
+static unsigned long innovator1510_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel innovator1510_panel = {
+ .name = "inn1510",
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 240,
+ .y_res = 320,
+ .pixel_clock = 12500,
+ .hsw = 40,
+ .hfp = 40,
+ .hbp = 72,
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 0,
+ .pcd = 12,
+
+ .init = innovator1510_panel_init,
+ .cleanup = innovator1510_panel_cleanup,
+ .enable = innovator1510_panel_enable,
+ .disable = innovator1510_panel_disable,
+ .get_caps = innovator1510_panel_get_caps,
+};
+
+static int innovator1510_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&innovator1510_panel);
+ return 0;
+}
+
+static int innovator1510_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int innovator1510_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int innovator1510_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver innovator1510_panel_driver = {
+ .probe = innovator1510_panel_probe,
+ .remove = innovator1510_panel_remove,
+ .suspend = innovator1510_panel_suspend,
+ .resume = innovator1510_panel_resume,
+ .driver = {
+ .name = "lcd_inn1510",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int innovator1510_panel_drv_init(void)
+{
+ return platform_driver_register(&innovator1510_panel_driver);
+}
+
+static void innovator1510_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&innovator1510_panel_driver);
+}
+
+module_init(innovator1510_panel_drv_init);
+module_exit(innovator1510_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-inn1610.c
+ *
+ * LCD panel support for the TI OMAP1610 Innovator board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/omapfb.h>
+
+#define MODULE_NAME "omapfb-lcd_h3"
+
+#define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args)
+
+static int innovator1610_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ int r = 0;
+
+ if (omap_request_gpio(14)) {
+ pr_err("can't request GPIO 14\n");
+ r = -1;
+ goto exit;
+ }
+ if (omap_request_gpio(15)) {
+ pr_err("can't request GPIO 15\n");
+ omap_free_gpio(14);
+ r = -1;
+ goto exit;
+ }
+ /* configure GPIO(14, 15) as outputs */
+ omap_set_gpio_direction(14, 0);
+ omap_set_gpio_direction(15, 0);
+exit:
+ return r;
+}
+
+static void innovator1610_panel_cleanup(struct lcd_panel *panel)
+{
+ omap_free_gpio(15);
+ omap_free_gpio(14);
+}
+
+static int innovator1610_panel_enable(struct lcd_panel *panel)
+{
+ /* set GPIO14 and GPIO15 high */
+ omap_set_gpio_dataout(14, 1);
+ omap_set_gpio_dataout(15, 1);
+ return 0;
+}
+
+static void innovator1610_panel_disable(struct lcd_panel *panel)
+{
+ /* set GPIO13, GPIO14 and GPIO15 low */
+ omap_set_gpio_dataout(14, 0);
+ omap_set_gpio_dataout(15, 0);
+}
+
+static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel innovator1610_panel = {
+ .name = "inn1610",
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 320,
+ .y_res = 240,
+ .pixel_clock = 12500,
+ .hsw = 40,
+ .hfp = 40,
+ .hbp = 72,
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 0,
+ .pcd = 12,
+
+ .init = innovator1610_panel_init,
+ .cleanup = innovator1610_panel_cleanup,
+ .enable = innovator1610_panel_enable,
+ .disable = innovator1610_panel_disable,
+ .get_caps = innovator1610_panel_get_caps,
+};
+
+static int innovator1610_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&innovator1610_panel);
+ return 0;
+}
+
+static int innovator1610_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int innovator1610_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int innovator1610_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver innovator1610_panel_driver = {
+ .probe = innovator1610_panel_probe,
+ .remove = innovator1610_panel_remove,
+ .suspend = innovator1610_panel_suspend,
+ .resume = innovator1610_panel_resume,
+ .driver = {
+ .name = "lcd_inn1610",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int innovator1610_panel_drv_init(void)
+{
+ return platform_driver_register(&innovator1610_panel_driver);
+}
+
+static void innovator1610_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&innovator1610_panel_driver);
+}
+
+module_init(innovator1610_panel_drv_init);
+module_exit(innovator1610_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_mipid.c
+ *
+ * LCD driver for MIPI DBI-C / DCS compatible LCDs
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/spi/spi.h>
+
+#include <asm/arch/omapfb.h>
+#include <asm/arch/lcd_mipid.h>
+
+#include "../../cbus/tahvo.h"
+
+#define MIPID_MODULE_NAME "lcd_mipid"
+
+#define MIPID_CMD_READ_DISP_ID 0x04
+#define MIPID_CMD_READ_RED 0x06
+#define MIPID_CMD_READ_GREEN 0x07
+#define MIPID_CMD_READ_BLUE 0x08
+#define MIPID_CMD_READ_DISP_STATUS 0x09
+#define MIPID_CMD_RDDSDR 0x0F
+#define MIPID_CMD_SLEEP_IN 0x10
+#define MIPID_CMD_SLEEP_OUT 0x11
+#define MIPID_CMD_DISP_OFF 0x28
+#define MIPID_CMD_DISP_ON 0x29
+
+#define MIPID_VER_LPH8923 3
+#define MIPID_VER_LS041Y3 4
+
+#define MIPID_ESD_CHECK_PERIOD msecs_to_jiffies(5000)
+
+#define to_mipid_device(p) container_of(p, struct mipid_device, \
+ panel)
+struct mipid_device {
+ int enabled;
+ int model;
+ int revision;
+ u8 display_id[3];
+ unsigned int saved_bklight_level;
+ unsigned long hw_guard_end; /* next value of jiffies
+ when we can issue the
+ next sleep in/out command */
+ unsigned long hw_guard_wait; /* max guard time in jiffies */
+
+ struct omapfb_device *fbdev;
+ struct spi_device *spi;
+ struct mutex mutex;
+ struct lcd_panel panel;
+
+ struct workqueue_struct *esd_wq;
+ struct delayed_work esd_work;
+ void (*esd_check)(struct mipid_device *m);
+};
+
+static void mipid_transfer(struct mipid_device *md, int cmd, const u8 *wbuf,
+ int wlen, u8 *rbuf, int rlen)
+{
+ struct spi_message m;
+ struct spi_transfer *x, xfer[4];
+ u16 w;
+ int r;
+
+ BUG_ON(md->spi == NULL);
+
+ spi_message_init(&m);
+
+ memset(xfer, 0, sizeof(xfer));
+ x = &xfer[0];
+
+ cmd &= 0xff;
+ x->tx_buf = &cmd;
+ x->bits_per_word= 9;
+ x->len = 2;
+ spi_message_add_tail(x, &m);
+
+ if (wlen) {
+ x++;
+ x->tx_buf = wbuf;
+ x->len = wlen;
+ x->bits_per_word= 9;
+ spi_message_add_tail(x, &m);
+ }
+
+ if (rlen) {
+ x++;
+ x->rx_buf = &w;
+ x->len = 1;
+ spi_message_add_tail(x, &m);
+
+ if (rlen > 1) {
+ /* Arrange for the extra clock before the first
+ * data bit.
+ */
+ x->bits_per_word = 9;
+ x->len = 2;
+
+ x++;
+ x->rx_buf = &rbuf[1];
+ x->len = rlen - 1;
+ spi_message_add_tail(x, &m);
+ }
+ }
+
+ r = spi_sync(md->spi, &m);
+ if (r < 0)
+ dev_dbg(&md->spi->dev, "spi_sync %d\n", r);
+
+ if (rlen)
+ rbuf[0] = w & 0xff;
+}
+
+static inline void mipid_cmd(struct mipid_device *md, int cmd)
+{
+ mipid_transfer(md, cmd, NULL, 0, NULL, 0);
+}
+
+static inline void mipid_write(struct mipid_device *md,
+ int reg, const u8 *buf, int len)
+{
+ mipid_transfer(md, reg, buf, len, NULL, 0);
+}
+
+static inline void mipid_read(struct mipid_device *md,
+ int reg, u8 *buf, int len)
+{
+ mipid_transfer(md, reg, NULL, 0, buf, len);
+}
+
+static void set_data_lines(struct mipid_device *md, int data_lines)
+{
+ u16 par;
+
+ switch (data_lines) {
+ case 16:
+ par = 0x150;
+ break;
+ case 18:
+ par = 0x160;
+ break;
+ case 24:
+ par = 0x170;
+ break;
+ }
+ mipid_write(md, 0x3a, (u8 *)&par, 2);
+}
+
+static void send_init_string(struct mipid_device *md)
+{
+ u16 initpar[] = { 0x0102, 0x0100, 0x0100 };
+
+ mipid_write(md, 0xc2, (u8 *)initpar, sizeof(initpar));
+ set_data_lines(md, md->panel.data_lines);
+}
+
+static void hw_guard_start(struct mipid_device *md, int guard_msec)
+{
+ md->hw_guard_wait = msecs_to_jiffies(guard_msec);
+ md->hw_guard_end = jiffies + md->hw_guard_wait;
+}
+
+static void hw_guard_wait(struct mipid_device *md)
+{
+ unsigned long wait = md->hw_guard_end - jiffies;
+
+ if ((long)wait > 0 && wait <= md->hw_guard_wait) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(wait);
+ }
+}
+
+static void set_sleep_mode(struct mipid_device *md, int on)
+{
+ int cmd, sleep_time = 50;
+
+ if (on)
+ cmd = MIPID_CMD_SLEEP_IN;
+ else
+ cmd = MIPID_CMD_SLEEP_OUT;
+ hw_guard_wait(md);
+ mipid_cmd(md, cmd);
+ hw_guard_start(md, 120);
+ /* When we enable the panel, it seems we _have_ to sleep
+ * 120 ms before sending the init string. When disabling the
+ * panel we'll sleep for the duration of 2 frames, so that the
+ * controller can still provide the PCLK,HS,VS signals. */
+ if (!on)
+ sleep_time = 120;
+ msleep(sleep_time);
+}
+
+static void set_display_state(struct mipid_device *md, int enabled)
+{
+ int cmd = enabled ? MIPID_CMD_DISP_ON : MIPID_CMD_DISP_OFF;
+
+ mipid_cmd(md, cmd);
+}
+
+static int mipid_set_bklight_level(struct lcd_panel *panel, unsigned int level)
+{
+ struct mipid_device *md = to_mipid_device(panel);
+
+ if (level > tahvo_get_max_backlight_level())
+ return -EINVAL;
+ if (!md->enabled) {
+ md->saved_bklight_level = level;
+ return 0;
+ }
+ tahvo_set_backlight_level(level);
+
+ return 0;
+}
+
+static unsigned int mipid_get_bklight_level(struct lcd_panel *panel)
+{
+ return tahvo_get_backlight_level();
+}
+
+static unsigned int mipid_get_bklight_max(struct lcd_panel *panel)
+{
+ return tahvo_get_max_backlight_level();
+}
+
+
+static unsigned long mipid_get_caps(struct lcd_panel *panel)
+{
+ return OMAPFB_CAPS_SET_BACKLIGHT;
+}
+
+static u16 read_first_pixel(struct mipid_device *md)
+{
+ u16 pixel;
+ u8 red, green, blue;
+
+ mutex_lock(&md->mutex);
+ mipid_read(md, MIPID_CMD_READ_RED, &red, 1);
+ mipid_read(md, MIPID_CMD_READ_GREEN, &green, 1);
+ mipid_read(md, MIPID_CMD_READ_BLUE, &blue, 1);
+ mutex_unlock(&md->mutex);
+
+ switch (md->panel.data_lines) {
+ case 16:
+ pixel = ((red >> 1) << 11) | (green << 5) | (blue >> 1);
+ break;
+ case 24:
+ /* 24 bit -> 16 bit */
+ pixel = ((red >> 3) << 11) | ((green >> 2) << 5) |
+ (blue >> 3);
+ break;
+ default:
+ BUG();
+ }
+
+ return pixel;
+}
+
+static int mipid_run_test(struct lcd_panel *panel, int test_num)
+{
+ struct mipid_device *md = to_mipid_device(panel);
+ static const u16 test_values[4] = {
+ 0x0000, 0xffff, 0xaaaa, 0x5555,
+ };
+ int i;
+
+ if (test_num != MIPID_TEST_RGB_LINES)
+ return MIPID_TEST_INVALID;
+
+ for (i = 0; i < ARRAY_SIZE(test_values); i++) {
+ int delay;
+ unsigned long tmo;
+
+ omapfb_write_first_pixel(md->fbdev, test_values[i]);
+ tmo = jiffies + msecs_to_jiffies(100);
+ delay = 25;
+ while (1) {
+ u16 pixel;
+
+ msleep(delay);
+ pixel = read_first_pixel(md);
+ if (pixel == test_values[i])
+ break;
+ if (time_after(jiffies, tmo)) {
+ dev_err(&md->spi->dev,
+ "MIPI LCD RGB I/F test failed: "
+ "expecting %04x, got %04x\n",
+ test_values[i], pixel);
+ return MIPID_TEST_FAILED;
+ }
+ delay = 10;
+ }
+ }
+
+ return 0;
+}
+
+static void ls041y3_esd_recover(struct mipid_device *md)
+{
+ dev_err(&md->spi->dev, "performing LCD ESD recovery\n");
+ set_sleep_mode(md, 1);
+ set_sleep_mode(md, 0);
+}
+
+static void ls041y3_esd_check_mode1(struct mipid_device *md)
+{
+ u8 state1, state2;
+
+ mipid_read(md, MIPID_CMD_RDDSDR, &state1, 1);
+ set_sleep_mode(md, 0);
+ mipid_read(md, MIPID_CMD_RDDSDR, &state2, 1);
+ dev_dbg(&md->spi->dev, "ESD mode 1 state1 %02x state2 %02x\n",
+ state1, state2);
+ /* Each sleep out command will trigger a self diagnostic and flip
+ * Bit6 if the test passes.
+ */
+ if (!((state1 ^ state2) & (1 << 6)))
+ ls041y3_esd_recover(md);
+}
+
+static void ls041y3_esd_check_mode2(struct mipid_device *md)
+{
+ int i;
+ u8 rbuf[2];
+ static const struct {
+ int cmd;
+ int wlen;
+ u16 wbuf[3];
+ } *rd, rd_ctrl[7] = {
+ { 0xb0, 4, { 0x0101, 0x01fe, } },
+ { 0xb1, 4, { 0x01de, 0x0121, } },
+ { 0xc2, 4, { 0x0100, 0x0100, } },
+ { 0xbd, 2, { 0x0100, } },
+ { 0xc2, 4, { 0x01fc, 0x0103, } },
+ { 0xb4, 0, },
+ { 0x00, 0, },
+ };
+
+ rd = rd_ctrl;
+ for (i = 0; i < 3; i++, rd++)
+ mipid_write(md, rd->cmd, (u8 *)rd->wbuf, rd->wlen);
+
+ udelay(10);
+ mipid_read(md, rd->cmd, rbuf, 2);
+ rd++;
+
+ for (i = 0; i < 3; i++, rd++) {
+ udelay(10);
+ mipid_write(md, rd->cmd, (u8 *)rd->wbuf, rd->wlen);
+ }
+
+ dev_dbg(&md->spi->dev, "ESD mode 2 state %02x\n", rbuf[1]);
+ if (rbuf[1] == 0x00)
+ ls041y3_esd_recover(md);
+}
+
+static void ls041y3_esd_check(struct mipid_device *md)
+{
+ ls041y3_esd_check_mode1(md);
+ if (md->revision >= 0x88)
+ ls041y3_esd_check_mode2(md);
+}
+
+static void mipid_esd_start_check(struct mipid_device *md)
+{
+ if (md->esd_check != NULL)
+ queue_delayed_work(md->esd_wq, &md->esd_work,
+ MIPID_ESD_CHECK_PERIOD);
+}
+
+static void mipid_esd_stop_check(struct mipid_device *md)
+{
+ if (md->esd_check != NULL)
+ cancel_rearming_delayed_workqueue(md->esd_wq, &md->esd_work);
+}
+
+static void mipid_esd_work(struct work_struct *work)
+{
+ struct mipid_device *md = container_of(work, struct mipid_device, esd_work.work);
+
+ mutex_lock(&md->mutex);
+ md->esd_check(md);
+ mutex_unlock(&md->mutex);
+ mipid_esd_start_check(md);
+}
+
+static int mipid_enable(struct lcd_panel *panel)
+{
+ struct mipid_device *md = to_mipid_device(panel);
+
+ mutex_lock(&md->mutex);
+
+ if (md->enabled) {
+ mutex_unlock(&md->mutex);
+ return 0;
+ }
+ set_sleep_mode(md, 0);
+ md->enabled = 1;
+ send_init_string(md);
+ set_display_state(md, 1);
+ mipid_set_bklight_level(panel, md->saved_bklight_level);
+ mipid_esd_start_check(md);
+
+ mutex_unlock(&md->mutex);
+ return 0;
+}
+
+static void mipid_disable(struct lcd_panel *panel)
+{
+ struct mipid_device *md = to_mipid_device(panel);
+
+ /* A final ESD work might be called before returning,
+ * so do this without holding the lock. */
+ mipid_esd_stop_check(md);
+ mutex_lock(&md->mutex);
+
+ if (!md->enabled) {
+ mutex_unlock(&md->mutex);
+ return;
+ }
+ md->saved_bklight_level = mipid_get_bklight_level(panel);
+ mipid_set_bklight_level(panel, 0);
+ set_display_state(md, 0);
+ set_sleep_mode(md, 1);
+ md->enabled = 0;
+
+ mutex_unlock(&md->mutex);
+}
+
+static int panel_enabled(struct mipid_device *md)
+{
+ u32 disp_status;
+ int enabled;
+
+ mipid_read(md, MIPID_CMD_READ_DISP_STATUS, (u8 *)&disp_status, 4);
+ disp_status = __be32_to_cpu(disp_status);
+ enabled = (disp_status & (1 << 17)) && (disp_status & (1 << 10));
+ dev_dbg(&md->spi->dev,
+ "LCD panel %s enabled by bootloader (status 0x%04x)\n",
+ enabled ? "" : "not ", disp_status);
+ return enabled;
+}
+
+static int mipid_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ struct mipid_device *md = to_mipid_device(panel);
+
+ md->fbdev = fbdev;
+ md->esd_wq = create_singlethread_workqueue("mipid_esd");
+ if (md->esd_wq == NULL) {
+ dev_err(&md->spi->dev, "can't create ESD workqueue\n");
+ return -ENOMEM;
+ }
+ INIT_DELAYED_WORK(&md->esd_work, mipid_esd_work);
+ mutex_init(&md->mutex);
+
+ md->enabled = panel_enabled(md);
+
+ if (md->enabled)
+ mipid_esd_start_check(md);
+ else
+ md->saved_bklight_level = mipid_get_bklight_level(panel);
+
+ return 0;
+}
+
+static void mipid_cleanup(struct lcd_panel *panel)
+{
+ struct mipid_device *md = to_mipid_device(panel);
+
+ if (md->enabled)
+ mipid_esd_stop_check(md);
+ destroy_workqueue(md->esd_wq);
+}
+
+static struct lcd_panel mipid_panel = {
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .bpp = 16,
+ .x_res = 800,
+ .y_res = 480,
+ .pixel_clock = 21940,
+ .hsw = 50,
+ .hfp = 20,
+ .hbp = 15,
+ .vsw = 2,
+ .vfp = 1,
+ .vbp = 3,
+
+ .init = mipid_init,
+ .cleanup = mipid_cleanup,
+ .enable = mipid_enable,
+ .disable = mipid_disable,
+ .get_caps = mipid_get_caps,
+ .set_bklight_level= mipid_set_bklight_level,
+ .get_bklight_level= mipid_get_bklight_level,
+ .get_bklight_max= mipid_get_bklight_max,
+ .run_test = mipid_run_test,
+};
+
+static int mipid_detect(struct mipid_device *md)
+{
+ struct mipid_platform_data *pdata;
+
+ pdata = md->spi->dev.platform_data;
+ if (pdata == NULL) {
+ dev_err(&md->spi->dev, "missing platform data\n");
+ return -ENOENT;
+ }
+
+ mipid_read(md, MIPID_CMD_READ_DISP_ID, md->display_id, 3);
+ dev_dbg(&md->spi->dev, "MIPI display ID: %02x%02x%02x\n",
+ md->display_id[0], md->display_id[1], md->display_id[2]);
+
+ switch (md->display_id[0]) {
+ case 0x45:
+ md->model = MIPID_VER_LPH8923;
+ md->panel.name = "lph8923";
+ break;
+ case 0x83:
+ md->model = MIPID_VER_LS041Y3;
+ md->panel.name = "ls041y3";
+ md->esd_check = ls041y3_esd_check;
+ break;
+ default:
+ md->panel.name = "unknown";
+ dev_err(&md->spi->dev, "invalid display ID\n");
+ return -ENODEV;
+ }
+
+ md->revision = md->display_id[1];
+ md->panel.data_lines = pdata->data_lines;
+ pr_info("omapfb: %s rev %02x LCD detected\n",
+ md->panel.name, md->revision);
+
+ return 0;
+}
+
+static int mipid_spi_probe(struct spi_device *spi)
+{
+ struct mipid_device *md;
+ int r;
+
+ md = kzalloc(sizeof(*md), GFP_KERNEL);
+ if (md == NULL) {
+ dev_err(&md->spi->dev, "out of memory\n");
+ return -ENOMEM;
+ }
+
+ spi->mode = SPI_MODE_1;
+ md->spi = spi;
+ dev_set_drvdata(&spi->dev, md);
+ md->panel = mipid_panel;
+
+ r = mipid_detect(md);
+ if (r < 0)
+ return r;
+
+ omapfb_register_panel(&md->panel);
+
+ return 0;
+}
+
+static int mipid_spi_remove(struct spi_device *spi)
+{
+ struct mipid_device *md = dev_get_drvdata(&spi->dev);
+
+ mipid_disable(&md->panel);
+ kfree(md);
+
+ return 0;
+}
+
+static struct spi_driver mipid_spi_driver = {
+ .driver = {
+ .name = MIPID_MODULE_NAME,
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = mipid_spi_probe,
+ .remove = __devexit_p(mipid_spi_remove),
+};
+
+static int mipid_drv_init(void)
+{
+ spi_register_driver(&mipid_spi_driver);
+
+ return 0;
+}
+module_init(mipid_drv_init);
+
+static void mipid_drv_cleanup(void)
+{
+ spi_unregister_driver(&mipid_spi_driver);
+}
+module_exit(mipid_drv_cleanup);
+
+MODULE_DESCRIPTION("MIPI display driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-osk.c
+ *
+ * LCD panel support for the TI OMAP OSK board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ * Adapted for OSK by <dirk.behme@de.bosch.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/omapfb.h>
+
+static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void osk_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int osk_panel_enable(struct lcd_panel *panel)
+{
+ /* configure PWL pin */
+ omap_cfg_reg(PWL);
+
+ /* Enable PWL unit */
+ omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
+
+ /* Set PWL level */
+ omap_writeb(0xFF, OMAP_PWL_ENABLE);
+
+ /* configure GPIO2 as output */
+ omap_set_gpio_direction(2, 0);
+
+ /* set GPIO2 high */
+ omap_set_gpio_dataout(2, 1);
+
+ return 0;
+}
+
+static void osk_panel_disable(struct lcd_panel *panel)
+{
+ /* Set PWL level to zero */
+ omap_writeb(0x00, OMAP_PWL_ENABLE);
+
+ /* Disable PWL unit */
+ omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
+
+ /* set GPIO2 low */
+ omap_set_gpio_dataout(2, 0);
+}
+
+static unsigned long osk_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel osk_panel = {
+ .name = "osk",
+ .config = OMAP_LCDC_PANEL_TFT,
+
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 240,
+ .y_res = 320,
+ .pixel_clock = 12500,
+ .hsw = 40,
+ .hfp = 40,
+ .hbp = 72,
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 0,
+ .pcd = 12,
+
+ .init = osk_panel_init,
+ .cleanup = osk_panel_cleanup,
+ .enable = osk_panel_enable,
+ .disable = osk_panel_disable,
+ .get_caps = osk_panel_get_caps,
+};
+
+static int osk_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&osk_panel);
+ return 0;
+}
+
+static int osk_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int osk_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver osk_panel_driver = {
+ .probe = osk_panel_probe,
+ .remove = osk_panel_remove,
+ .suspend = osk_panel_suspend,
+ .resume = osk_panel_resume,
+ .driver = {
+ .name = "lcd_osk",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int osk_panel_drv_init(void)
+{
+ return platform_driver_register(&osk_panel_driver);
+}
+
+static void osk_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&osk_panel_driver);
+}
+
+module_init(osk_panel_drv_init);
+module_exit(osk_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd-p2.c
+ *
+ * LCD panel support for the TI OMAP P2 board
+ *
+ * Authors:
+ * jekyll <jekyll@mail.jekyll.idv.tw>
+ * B Jp <lastjp_fr@yahoo.fr>
+ * Brian Swetland <swetland@android.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/mux.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/omapfb.h>
+
+/*
+ * File: epson-md-tft.h
+ *
+ * This file contains definitions for Epsons MD-TF LCD Module
+ *
+ * Copyright (C) 2004 MPC-Data Limited (http://www.mpc-data.co.uk)
+ * Author: Dave Peverley <dpeverley at mpc-data.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Please report all bugs and problems to the author.
+ *
+ */
+
+/* LCD uWire commands & params
+ * All values from Epson
+ */
+#define LCD_DISON 0xAF
+#define LCD_DISOFF 0xAE
+#define LCD_DISNOR 0xA6
+#define LCD_DISINV 0xA7
+#define LCD_DISCTL 0xCA
+#define LCD_GCP64 0xCB
+#define LCD_GCP16 0xCC
+#define LCD_GSSET 0xCD
+#define LCD_SLPIN 0x95
+#define LCD_SLPOUT 0x94
+#define LCD_SD_PSET 0x75
+#define LCD_MD_PSET 0x76
+#define LCD_SD_CSET 0x15
+#define LCD_MD_CSET 0x16
+#define LCD_DATCTL 0xBC
+#define LCD_RAMWR 0x5C
+#define LCD_RAMRD 0x5D
+#define LCD_PTLIN 0xA8
+#define LCD_PTLOUT 0xA9
+#define LCD_ASCSET 0xAA
+#define LCD_SCSTART 0xAB
+#define LCD_VOLCTL 0xC6
+#define LCD_NOP 0x25
+#define LCD_OSCISEL 0x7
+#define LCD_3500KSET 0xD1
+#define LCD_3500KEND 0xD2
+#define LCD_14MSET 0xD3
+#define LCD_14MEND 0xD4
+
+#define INIT_3500KSET 0x45
+#define INIT_14MSET 0x4B
+#define INIT_DATCTL 0x08 /* 6.6.6 bits for D-Sample */
+
+#define INIT_OSCISEL 0x05
+
+#define INIT_VOLCTL 0x77 /* Nominel "volume" */
+
+#define INIT_VOLCTL_Ton 0x98 /* Activate power-IC timer */
+#define INIT_GSSET 0x00
+
+const unsigned short INIT_DISCTL[11] =
+{
+ 0xDE, 0x01, 0x64, 0x00, 0x1B, 0xF4, 0x00, 0xDC, 0x00, 0x02, 0x00
+};
+
+const unsigned short INIT_GCP64[126] =
+{
+ 0x3B,0x00,0x42,0x00,0x4A,0x00,0x51,0x00,
+ 0x58,0x00,0x5F,0x00,0x66,0x00,0x6E,0x00,
+ 0x75,0x00,0x7C,0x00,0x83,0x00,0x8A,0x00,
+ 0x92,0x00,0x99,0x00,0xA0,0x00,0xA7,0x00,
+ 0xAE,0x00,0xB6,0x00,0xBD,0x00,0xC4,0x00,
+ 0xCB,0x00,0xD2,0x00,0xDA,0x00,0xE1,0x00,
+ 0xE8,0x00,0xEF,0x00,0xF6,0x00,0xFE,0x00,
+ 0x05,0x01,0x0C,0x01,0x13,0x01,0x1A,0x01,
+ 0x22,0x01,0x29,0x01,0x30,0x01,0x37,0x01,
+ 0x3E,0x01,0x46,0x01,0x4D,0x01,0x54,0x01,
+ 0x5B,0x01,0x62,0x01,0x6A,0x01,0x71,0x01,
+ 0x78,0x01,0x7F,0x01,0x86,0x01,0x8E,0x01,
+ 0x95,0x01,0x9C,0x01,0xA3,0x01,0xAA,0x01,
+ 0xB2,0x01,0xB9,0x01,0xC0,0x01,0xC7,0x01,
+ 0xCE,0x01,0xD6,0x01,0xDD,0x01,0xE4,0x01,
+ 0xEB,0x01,0xF2,0x01,0xFA,0x01
+};
+
+const unsigned short INIT_GCP16[15] =
+{
+ 0x1A,0x31,0x48,0x54,0x5F,0x67,0x70,0x76,0x7C,0x80,0x83,0x84,0x85,0x87,0x96
+};
+
+const unsigned short INIT_MD_PSET[4] = { 0, 0, 219, 0 };
+const unsigned short INIT_MD_CSET[4] = { 2, 0, 177, 0 };
+
+const unsigned short INIT_SD_PSET[4] = { 0x00, 0x01, 0x00, 0x01 };
+const unsigned short INIT_SD_CSET[4] = { 0x00, 0x02, 0x00, 0x02 };
+
+const unsigned short INIT_ASCSET[7] = { 0x00, 0x00, 0xDB, 0x00, 0xDC, 0x00, 0x01 };
+const unsigned short INIT_SCSTART[2] = { 0x00, 0x00 };
+
+/* ----- end of epson_md_tft.h ----- */
+
+
+#include "../drivers/ssi/omap-uwire.h"
+
+#define LCD_UWIRE_CS 0
+
+static int p2_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void p2_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int p2_panel_enable(struct lcd_panel *panel)
+{
+ int i;
+ unsigned long value;
+
+ /* thwack the reset line */
+ omap_set_gpio_direction(19, 0);
+ omap_set_gpio_dataout(19, 0);
+ mdelay(2);
+ omap_set_gpio_dataout(19, 1);
+
+ /* bits 31:28 -> 0 LCD_PXL_15 .. 12 */
+ value = omap_readl(OMAP730_IO_CONF_3) & 0x0FFFFFFF;
+ omap_writel(value, OMAP730_IO_CONF_3);
+
+ /* bits 19:0 -> 0 LCD_VSYNC, AC, PXL_0, PCLK, HSYNC,
+ ** PXL_9..1, PXL_10, PXL_11
+ */
+ value = omap_readl(OMAP730_IO_CONF_4) & 0xFFF00000;
+ omap_writel(value, OMAP730_IO_CONF_4);
+
+ omap_uwire_configure_mode(0,16);
+
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISOFF, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SLPIN, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISNOR, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GSSET, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GSSET | 0x100), 9, 0,NULL,1);
+
+ /* DISCTL */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISCTL, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_DISCTL)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_DISCTL[i] | 0x100), 9, 0,NULL,1);
+
+ /* GCP64 */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GCP64, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_GCP64)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GCP64[i] | 0x100), 9, 0,NULL,1);
+
+ /* GCP16 */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GCP16, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_GCP16)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GCP16[i] | 0x100), 9, 0,NULL,1);
+
+ /* MD_CSET */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_MD_CSET, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_MD_CSET)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_MD_CSET[i] | 0x100), 9, 0,NULL,1);
+
+ /* MD_PSET */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_MD_PSET, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_MD_PSET)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_MD_PSET[i] | 0x100), 9, 0,NULL,1);
+
+ /* SD_CSET */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SD_CSET, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_SD_CSET)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_SD_CSET[i] | 0x100), 9, 0,NULL,1);
+
+ /* SD_PSET */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SD_PSET, 9, 0,NULL,1);
+ for (i = 0; i < (sizeof(INIT_SD_PSET)/sizeof(unsigned short)); i++)
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_SD_PSET[i] | 0x100), 9, 0,NULL,1);
+
+ /* DATCTL */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DATCTL, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_DATCTL | 0x100), 9, 0,NULL,1);
+
+ /* OSSISEL = d'5 */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_OSCISEL, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_OSCISEL | 0x100), 9, 0,NULL,1);
+
+ /* 14MSET = d'74 */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_14MSET, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_14MSET | 0x100), 9, 0,NULL,1);
+
+ /* 14MEND */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_14MEND, 9, 0,NULL,1);
+
+ /* 3500KSET = d'69 */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_3500KSET, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_3500KSET | 0x100), 9, 0,NULL,1);
+
+ /* 3500KEND */
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_3500KEND, 9, 0,NULL,1);
+
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SLPOUT, 9, 0,NULL,1);
+
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_VOLCTL, 9, 0,NULL,1);
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_VOLCTL_Ton | 0x100), 9, 0,NULL,1);
+
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_VOLCTL, 9, 0,NULL,1);
+
+ omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_VOLCTL | 0x100), 9, 0,NULL,1);
+
+ omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISON, 9, 0,NULL,1);
+
+ /* enable backlight */
+ omap_set_gpio_direction(134, 0);
+ omap_set_gpio_dataout(134, 1);
+
+ return 0;
+}
+
+static void p2_panel_disable(struct lcd_panel *panel)
+{
+}
+
+static unsigned long p2_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel p2_panel = {
+ .name = "p2",
+ .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_PIX_CLOCK,
+
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 176,
+ .y_res = 220,
+ .pixel_clock = 12500,
+ .hsw = 5,
+ .hfp = 1,
+ .hbp = 1,
+ .vsw = 2,
+ .vfp = 12,
+ .vbp = 1,
+
+ .init = p2_panel_init,
+ .cleanup = p2_panel_cleanup,
+ .enable = p2_panel_enable,
+ .disable = p2_panel_disable,
+ .get_caps = p2_panel_get_caps,
+};
+
+static int p2_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&p2_panel);
+ return 0;
+}
+
+static int p2_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int p2_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int p2_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver p2_panel_driver = {
+ .probe = p2_panel_probe,
+ .remove = p2_panel_remove,
+ .suspend = p2_panel_suspend,
+ .resume = p2_panel_resume,
+ .driver = {
+ .name = "lcd_p2",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int p2_panel_drv_init(void)
+{
+ return platform_driver_register(&p2_panel_driver);
+}
+
+static void p2_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&p2_panel_driver);
+}
+
+module_init(p2_panel_drv_init);
+module_exit(p2_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_palmte.c
+ *
+ * LCD panel support for the Palm Tungsten E
+ *
+ * Original version : Romain Goyet
+ * Current version : Laurent Gonzalez
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/fpga.h>
+#include <asm/arch/omapfb.h>
+
+static int palmte_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void palmte_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int palmte_panel_enable(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+static void palmte_panel_disable(struct lcd_panel *panel)
+{
+}
+
+static unsigned long palmte_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel palmte_panel = {
+ .name = "palmte",
+ .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
+ OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE |
+ OMAP_LCDC_HSVS_OPPOSITE,
+
+ .data_lines = 16,
+ .bpp = 8,
+ .pixel_clock = 12000,
+ .x_res = 320,
+ .y_res = 320,
+ .hsw = 4,
+ .hfp = 8,
+ .hbp = 28,
+ .vsw = 1,
+ .vfp = 8,
+ .vbp = 7,
+ .pcd = 0,
+
+ .init = palmte_panel_init,
+ .cleanup = palmte_panel_cleanup,
+ .enable = palmte_panel_enable,
+ .disable = palmte_panel_disable,
+ .get_caps = palmte_panel_get_caps,
+};
+
+static int palmte_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&palmte_panel);
+ return 0;
+}
+
+static int palmte_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int palmte_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int palmte_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver palmte_panel_driver = {
+ .probe = palmte_panel_probe,
+ .remove = palmte_panel_remove,
+ .suspend = palmte_panel_suspend,
+ .resume = palmte_panel_resume,
+ .driver = {
+ .name = "lcd_palmte",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int palmte_panel_drv_init(void)
+{
+ return platform_driver_register(&palmte_panel_driver);
+}
+
+static void palmte_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&palmte_panel_driver);
+}
+
+module_init(palmte_panel_drv_init);
+module_exit(palmte_panel_drv_cleanup);
+
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_palmtt.c
+ *
+ * LCD panel support for Palm Tungsten|T
+ * Current version : Marek Vasut <marek.vasut@gmail.com>
+ *
+ * Modified from lcd_inn1510.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+GPIO11 - backlight
+GPIO12 - screen blanking
+GPIO13 - screen blanking
+*/
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/gpio.h>
+#include "asm/arch/omapfb.h"
+
+static int palmtt_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void palmtt_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int palmtt_panel_enable(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+static void palmtt_panel_disable(struct lcd_panel *panel)
+{
+}
+
+static unsigned long palmtt_panel_get_caps(struct lcd_panel *panel)
+{
+ return OMAPFB_CAPS_SET_BACKLIGHT;
+}
+
+struct lcd_panel palmtt_panel = {
+ .name = "palmtt",
+ .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
+ OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE |
+ OMAP_LCDC_HSVS_OPPOSITE,
+ .bpp = 16,
+ .data_lines = 16,
+ .x_res = 320,
+ .y_res = 320,
+ .pixel_clock = 10000,
+ .hsw = 4,
+ .hfp = 8,
+ .hbp = 28,
+ .vsw = 1,
+ .vfp = 8,
+ .vbp = 7,
+ .pcd = 0,
+
+ .init= palmtt_panel_init,
+ .cleanup = palmtt_panel_cleanup,
+ .enable= palmtt_panel_enable,
+ .disable = palmtt_panel_disable,
+ .get_caps = palmtt_panel_get_caps,
+};
+
+static int palmtt_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&palmtt_panel);
+ return 0;
+}
+
+static int palmtt_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int palmtt_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int palmtt_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver palmtt_panel_driver = {
+ .probe = palmtt_panel_probe,
+ .remove = palmtt_panel_remove,
+ .suspend = palmtt_panel_suspend,
+ .resume = palmtt_panel_resume,
+ .driver = {
+ .name = "lcd_palmtt",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int palmtt_panel_drv_init(void)
+{
+ return platform_driver_register(&palmtt_panel_driver);
+}
+
+static void palmtt_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&palmtt_panel_driver);
+}
+
+module_init(palmtt_panel_drv_init);
+module_exit(palmtt_panel_drv_cleanup);
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_palmz71.c
+ *
+ * LCD panel support for the Palm Zire71
+ *
+ * Original version : Romain Goyet
+ * Current version : Laurent Gonzalez
+ * Modified for zire71 : Marek Vasut
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/omapfb.h>
+
+static int palmz71_panel_init(struct lcd_panel *panel,
+ struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void palmz71_panel_cleanup(struct lcd_panel *panel)
+{
+
+}
+
+static int palmz71_panel_enable(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+static void palmz71_panel_disable(struct lcd_panel *panel)
+{
+}
+
+static unsigned long palmz71_panel_get_caps(struct lcd_panel *panel)
+{
+ return OMAPFB_CAPS_SET_BACKLIGHT;
+}
+
+struct lcd_panel palmz71_panel = {
+ .name = "palmz71",
+ .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
+ OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE |
+ OMAP_LCDC_HSVS_OPPOSITE,
+ .data_lines = 16,
+ .bpp = 16,
+ .pixel_clock = 24000,
+ .x_res = 320,
+ .y_res = 320,
+ .hsw = 4,
+ .hfp = 8,
+ .hbp = 28,
+ .vsw = 1,
+ .vfp = 8,
+ .vbp = 7,
+ .pcd = 0,
+
+ .init = palmz71_panel_init,
+ .cleanup = palmz71_panel_cleanup,
+ .enable = palmz71_panel_enable,
+ .disable = palmz71_panel_disable,
+ .get_caps = palmz71_panel_get_caps,
+};
+
+static int palmz71_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&palmz71_panel);
+ return 0;
+}
+
+static int palmz71_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int palmz71_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int palmz71_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver palmz71_panel_driver = {
+ .probe = palmz71_panel_probe,
+ .remove = palmz71_panel_remove,
+ .suspend = palmz71_panel_suspend,
+ .resume = palmz71_panel_resume,
+ .driver = {
+ .name = "lcd_palmz71",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int palmz71_panel_drv_init(void)
+{
+ return platform_driver_register(&palmz71_panel_driver);
+}
+
+static void palmz71_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&palmz71_panel_driver);
+}
+
+module_init(palmz71_panel_drv_init);
+module_exit(palmz71_panel_drv_cleanup);
--- /dev/null
+/*
+ * File: drivers/video/omap/lcd_sx1.c
+ *
+ * LCD panel support for the Siemens SX1 mobile phone
+ *
+ * Current version : Vovan888 at gmail com, great help from FCA00000
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/omapfb.h>
+#include <asm/arch/mcbsp.h>
+#include <asm/arch/mux.h>
+
+/*
+ * OMAP310 GPIO registers
+ */
+#define GPIO_DATA_INPUT 0xfffce000
+#define GPIO_DATA_OUTPUT 0xfffce004
+#define GPIO_DIR_CONTROL 0xfffce008
+#define GPIO_INT_CONTROL 0xfffce00c
+#define GPIO_INT_MASK 0xfffce010
+#define GPIO_INT_STATUS 0xfffce014
+#define GPIO_PIN_CONTROL 0xfffce018
+
+
+#define A_LCD_SSC_RD 3
+#define A_LCD_SSC_SD 7
+#define _A_LCD_RESET 9
+#define _A_LCD_SSC_CS 12
+#define _A_LCD_SSC_A0 13
+
+#define DSP_REG 0xE1017024
+
+const unsigned char INIT_1[12] = {
+ 0x1C, 0x02, 0x88, 0x00, 0x1E, 0xE0, 0x00, 0xDC, 0x00, 0x02, 0x00
+};
+
+const unsigned char INIT_2[127] = {
+ 0x15, 0x00, 0x29, 0x00, 0x3E, 0x00, 0x51, 0x00, 0x65, 0x00, 0x7A, 0x00, 0x8D, 0x00, 0xA1, 0x00,
+ 0xB6, 0x00, 0xC7, 0x00, 0xD8, 0x00, 0xEB, 0x00, 0xFB, 0x00, 0x0B, 0x01, 0x1B, 0x01, 0x27, 0x01,
+ 0x34, 0x01, 0x41, 0x01, 0x4C, 0x01, 0x55, 0x01, 0x5F, 0x01, 0x68, 0x01, 0x70, 0x01, 0x78, 0x01,
+ 0x7E, 0x01, 0x86, 0x01, 0x8C, 0x01, 0x94, 0x01, 0x9B, 0x01, 0xA1, 0x01, 0xA4, 0x01, 0xA9, 0x01,
+ 0xAD, 0x01, 0xB2, 0x01, 0xB7, 0x01, 0xBC, 0x01, 0xC0, 0x01, 0xC4, 0x01, 0xC8, 0x01, 0xCB, 0x01,
+ 0xCF, 0x01, 0xD2, 0x01, 0xD5, 0x01, 0xD8, 0x01, 0xDB, 0x01, 0xE0, 0x01, 0xE3, 0x01, 0xE6, 0x01,
+ 0xE8, 0x01, 0xEB, 0x01, 0xEE, 0x01, 0xF1, 0x01, 0xF3, 0x01, 0xF8, 0x01, 0xF9, 0x01, 0xFC, 0x01,
+ 0x00, 0x02, 0x03, 0x02, 0x07, 0x02, 0x09, 0x02, 0x0E, 0x02, 0x13, 0x02, 0x1C, 0x02, 0x00
+};
+
+const unsigned char INIT_3[15] = {
+ 0x14, 0x26, 0x33, 0x3D, 0x45, 0x4D, 0x53, 0x59,
+ 0x5E, 0x63, 0x67, 0x6D, 0x71, 0x78, 0xFF
+};
+
+static void epson_sendbyte(int flag, unsigned char byte)
+{
+ int i, shifter = 0x80;
+
+ if (!flag)
+ omap_set_gpio_dataout(_A_LCD_SSC_A0, 0);
+ mdelay(2);
+ omap_set_gpio_dataout(A_LCD_SSC_RD, 1);
+
+ omap_set_gpio_dataout(A_LCD_SSC_SD, flag);
+
+ OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);
+ OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);
+ for (i = 0; i < 8; i++) {
+ OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);
+ omap_set_gpio_dataout(A_LCD_SSC_SD, shifter & byte);
+ OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);
+ shifter >>= 1;
+ }
+ omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);
+}
+
+static void init_system(void)
+{
+ omap_mcbsp_request(OMAP_MCBSP3);
+ omap_mcbsp_stop(OMAP_MCBSP3);
+}
+
+static void setup_GPIO(void)
+{
+ /* new wave */
+ omap_request_gpio(A_LCD_SSC_RD);
+ omap_request_gpio(A_LCD_SSC_SD);
+ omap_request_gpio(_A_LCD_RESET);
+ omap_request_gpio(_A_LCD_SSC_CS);
+ omap_request_gpio(_A_LCD_SSC_A0);
+
+ /* set all GPIOs to output */
+ omap_set_gpio_direction(A_LCD_SSC_RD, 0);
+ omap_set_gpio_direction(A_LCD_SSC_SD, 0);
+ omap_set_gpio_direction(_A_LCD_RESET, 0);
+ omap_set_gpio_direction(_A_LCD_SSC_CS, 0);
+ omap_set_gpio_direction(_A_LCD_SSC_A0, 0);
+
+ /* set GPIO data */
+ omap_set_gpio_dataout(A_LCD_SSC_RD, 1);
+ omap_set_gpio_dataout(A_LCD_SSC_SD, 0);
+ omap_set_gpio_dataout(_A_LCD_RESET, 0);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);
+}
+
+static void display_init(void)
+{
+ int i;
+
+ omap_cfg_reg(MCBSP3_CLKX);
+
+ mdelay(2);
+ setup_GPIO();
+ mdelay(2);
+
+ /* reset LCD */
+ omap_set_gpio_dataout(A_LCD_SSC_SD, 1);
+ epson_sendbyte(0, 0x25);
+
+ omap_set_gpio_dataout(_A_LCD_RESET, 0);
+ mdelay(10);
+ omap_set_gpio_dataout(_A_LCD_RESET, 1);
+
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ mdelay(2);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD, phase 1 */
+ epson_sendbyte(0, 0xCA);
+ for (i = 0; i < 10; i++)
+ epson_sendbyte(1, INIT_1[i]);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 2 */
+ epson_sendbyte(0, 0xCB);
+ for( i = 0; i < 125; i++)
+ epson_sendbyte(1, INIT_2[i]);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 2a */
+ epson_sendbyte(0, 0xCC);
+ for( i = 0; i < 14; i++)
+ epson_sendbyte(1, INIT_3[i]);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 3 */
+ epson_sendbyte(0, 0xBC);
+ epson_sendbyte(1, 0x08);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 4 */
+ epson_sendbyte(0, 0x07);
+ epson_sendbyte(1, 0x05);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 5 */
+ epson_sendbyte(0, 0x94);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 6 */
+ epson_sendbyte(0, 0xC6);
+ epson_sendbyte(1, 0x80);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ mdelay(100); /* used to be 1000 */
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 7 */
+ epson_sendbyte(0, 0x16);
+ epson_sendbyte(1, 0x02);
+ epson_sendbyte(1, 0x00);
+ epson_sendbyte(1, 0xB1);
+ epson_sendbyte(1, 0x00);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 8 */
+ epson_sendbyte(0, 0x76);
+ epson_sendbyte(1, 0x00);
+ epson_sendbyte(1, 0x00);
+ epson_sendbyte(1, 0xDB);
+ epson_sendbyte(1, 0x00);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ /* init LCD phase 9 */
+ epson_sendbyte(0, 0xAF);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+}
+
+static int sx1_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+ return 0;
+}
+
+static void sx1_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static void sx1_panel_disable(struct lcd_panel *panel)
+{
+ printk(KERN_INFO "SX1: LCD panel disable\n");
+ sx1_setmmipower(0);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+
+ epson_sendbyte(0, 0x25);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ epson_sendbyte(0, 0xAE);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+ mdelay(100);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
+
+ epson_sendbyte(0, 0x95);
+ omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
+}
+
+static int sx1_panel_enable(struct lcd_panel *panel)
+{
+#if 0
+ sx1_panel_disable(); /* try to disable panel first, if we boot from Symbian */
+#endif
+
+ printk(KERN_INFO "lcd_sx1: LCD panel enable\n");
+ init_system();
+ display_init();
+
+ sx1_setmmipower(1);
+ sx1_setbacklight(0x18);
+ sx1_setkeylight (0x06);
+ return 0;
+}
+
+
+static unsigned long sx1_panel_get_caps(struct lcd_panel *panel)
+{
+ return 0;
+}
+
+struct lcd_panel sx1_panel = {
+ .name = "sx1",
+ .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
+ OMAP_LCDC_INV_HSYNC | OMAP_LCDC_INV_PIX_CLOCK |
+ OMAP_LCDC_INV_OUTPUT_EN,
+
+ .x_res = 176,
+ .y_res = 220,
+ .data_lines = 16,
+ .bpp = 16,
+ .hsw = 5,
+ .hfp = 5,
+ .hbp = 5,
+ .vsw = 2,
+ .vfp = 1,
+ .vbp = 1,
+ .pixel_clock = 1500,
+
+ .init = sx1_panel_init,
+ .cleanup = sx1_panel_cleanup,
+ .enable = sx1_panel_enable,
+ .disable = sx1_panel_disable,
+ .get_caps = sx1_panel_get_caps,
+};
+
+static int sx1_panel_probe(struct platform_device *pdev)
+{
+ omapfb_register_panel(&sx1_panel);
+ return 0;
+}
+
+static int sx1_panel_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int sx1_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ return 0;
+}
+
+static int sx1_panel_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+
+struct platform_driver sx1_panel_driver = {
+ .probe = sx1_panel_probe,
+ .remove = sx1_panel_remove,
+ .suspend = sx1_panel_suspend,
+ .resume = sx1_panel_resume,
+ .driver = {
+ .name = "lcd_sx1",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int sx1_panel_drv_init(void)
+{
+ return platform_driver_register(&sx1_panel_driver);
+}
+
+static void sx1_panel_drv_cleanup(void)
+{
+ platform_driver_unregister(&sx1_panel_driver);
+}
+
+module_init(sx1_panel_drv_init);
+module_exit(sx1_panel_drv_cleanup);
--- /dev/null
+/*
+ * File: drivers/video/omap/omap1/lcdc.c
+ *
+ * OMAP1 internal LCD controller
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/clk.h>
+
+#include <asm/arch/dma.h>
+#include <asm/arch/omapfb.h>
+
+#include <asm/mach-types.h>
+
+#define MODULE_NAME "lcdc"
+
+#define OMAP_LCDC_BASE 0xfffec000
+#define OMAP_LCDC_SIZE 256
+#define OMAP_LCDC_IRQ INT_LCD_CTRL
+
+#define OMAP_LCDC_CONTROL (OMAP_LCDC_BASE + 0x00)
+#define OMAP_LCDC_TIMING0 (OMAP_LCDC_BASE + 0x04)
+#define OMAP_LCDC_TIMING1 (OMAP_LCDC_BASE + 0x08)
+#define OMAP_LCDC_TIMING2 (OMAP_LCDC_BASE + 0x0c)
+#define OMAP_LCDC_STATUS (OMAP_LCDC_BASE + 0x10)
+#define OMAP_LCDC_SUBPANEL (OMAP_LCDC_BASE + 0x14)
+#define OMAP_LCDC_LINE_INT (OMAP_LCDC_BASE + 0x18)
+#define OMAP_LCDC_DISPLAY_STATUS (OMAP_LCDC_BASE + 0x1c)
+
+#define OMAP_LCDC_STAT_DONE (1 << 0)
+#define OMAP_LCDC_STAT_VSYNC (1 << 1)
+#define OMAP_LCDC_STAT_SYNC_LOST (1 << 2)
+#define OMAP_LCDC_STAT_ABC (1 << 3)
+#define OMAP_LCDC_STAT_LINE_INT (1 << 4)
+#define OMAP_LCDC_STAT_FUF (1 << 5)
+#define OMAP_LCDC_STAT_LOADED_PALETTE (1 << 6)
+
+#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
+#define OMAP_LCDC_CTRL_LCD_TFT (1 << 7)
+#define OMAP_LCDC_CTRL_LINE_IRQ_CLR_SEL (1 << 10)
+
+#define OMAP_LCDC_IRQ_VSYNC (1 << 2)
+#define OMAP_LCDC_IRQ_DONE (1 << 3)
+#define OMAP_LCDC_IRQ_LOADED_PALETTE (1 << 4)
+#define OMAP_LCDC_IRQ_LINE_NIRQ (1 << 5)
+#define OMAP_LCDC_IRQ_LINE (1 << 6)
+#define OMAP_LCDC_IRQ_MASK (((1 << 5) - 1) << 2)
+
+#define MAX_PALETTE_SIZE PAGE_SIZE
+
+enum lcdc_load_mode {
+ OMAP_LCDC_LOAD_PALETTE,
+ OMAP_LCDC_LOAD_FRAME,
+ OMAP_LCDC_LOAD_PALETTE_AND_FRAME
+};
+
+static struct omap_lcd_controller {
+ enum omapfb_update_mode update_mode;
+ int ext_mode;
+
+ unsigned long frame_offset;
+ int screen_width;
+ int xres;
+ int yres;
+
+ enum omapfb_color_format color_mode;
+ int bpp;
+ void *palette_virt;
+ dma_addr_t palette_phys;
+ int palette_code;
+ int palette_size;
+
+ unsigned int irq_mask;
+ struct completion last_frame_complete;
+ struct completion palette_load_complete;
+ struct clk *lcd_ck;
+ struct omapfb_device *fbdev;
+
+ void (*dma_callback)(void *data);
+ void *dma_callback_data;
+
+ int fbmem_allocated;
+ dma_addr_t vram_phys;
+ void *vram_virt;
+ unsigned long vram_size;
+} lcdc;
+
+static void inline enable_irqs(int mask)
+{
+ lcdc.irq_mask |= mask;
+}
+
+static void inline disable_irqs(int mask)
+{
+ lcdc.irq_mask &= ~mask;
+}
+
+static void set_load_mode(enum lcdc_load_mode mode)
+{
+ u32 l;
+
+ l = omap_readl(OMAP_LCDC_CONTROL);
+ l &= ~(3 << 20);
+ switch (mode) {
+ case OMAP_LCDC_LOAD_PALETTE:
+ l |= 1 << 20;
+ break;
+ case OMAP_LCDC_LOAD_FRAME:
+ l |= 2 << 20;
+ break;
+ case OMAP_LCDC_LOAD_PALETTE_AND_FRAME:
+ break;
+ default:
+ BUG();
+ }
+ omap_writel(l, OMAP_LCDC_CONTROL);
+}
+
+static void enable_controller(void)
+{
+ u32 l;
+
+ l = omap_readl(OMAP_LCDC_CONTROL);
+ l |= OMAP_LCDC_CTRL_LCD_EN;
+ l &= ~OMAP_LCDC_IRQ_MASK;
+ l |= lcdc.irq_mask | OMAP_LCDC_IRQ_DONE; /* enabled IRQs */
+ omap_writel(l, OMAP_LCDC_CONTROL);
+}
+
+static void disable_controller_async(void)
+{
+ u32 l;
+ u32 mask;
+
+ l = omap_readl(OMAP_LCDC_CONTROL);
+ mask = OMAP_LCDC_CTRL_LCD_EN | OMAP_LCDC_IRQ_MASK;
+ /* Preserve the DONE mask, since we still want to get the
+ * final DONE irq. It will be disabled in the IRQ handler.
+ */
+ mask &= ~OMAP_LCDC_IRQ_DONE;
+ l &= ~mask;
+ omap_writel(l, OMAP_LCDC_CONTROL);
+}
+
+static void disable_controller(void)
+{
+ init_completion(&lcdc.last_frame_complete);
+ disable_controller_async();
+ if (!wait_for_completion_timeout(&lcdc.last_frame_complete,
+ msecs_to_jiffies(500)))
+ dev_err(lcdc.fbdev->dev, "timeout waiting for FRAME DONE\n");
+}
+
+static void reset_controller(u32 status)
+{
+ static unsigned long reset_count = 0;
+ static unsigned long last_jiffies = 0;
+
+ disable_controller_async();
+ reset_count++;
+ if (reset_count == 1 || time_after(jiffies, last_jiffies + HZ)) {
+ dev_err(lcdc.fbdev->dev,
+ "resetting (status %#010x,reset count %lu)\n",
+ status, reset_count);
+ last_jiffies = jiffies;
+ }
+ if (reset_count < 100) {
+ enable_controller();
+ } else {
+ reset_count = 0;
+ dev_err(lcdc.fbdev->dev,
+ "too many reset attempts, giving up.\n");
+ }
+}
+
+/* Configure the LCD DMA according to the current mode specified by parameters
+ * in lcdc.fbdev and fbdev->var.
+ */
+static void setup_lcd_dma(void)
+{
+ static const int dma_elem_type[] = {
+ 0,
+ OMAP_DMA_DATA_TYPE_S8,
+ OMAP_DMA_DATA_TYPE_S16,
+ 0,
+ OMAP_DMA_DATA_TYPE_S32,
+ };
+ struct omapfb_plane_struct *plane = lcdc.fbdev->fb_info[0]->par;
+ struct fb_var_screeninfo *var = &lcdc.fbdev->fb_info[0]->var;
+ unsigned long src;
+ int esize, xelem, yelem;
+
+ src = lcdc.vram_phys + lcdc.frame_offset;
+
+ switch (var->rotate) {
+ case 0:
+ if (plane->info.mirror || (src & 3) ||
+ lcdc.color_mode == OMAPFB_COLOR_YUV420 ||
+ (lcdc.xres & 1))
+ esize = 2;
+ else
+ esize = 4;
+ xelem = lcdc.xres * lcdc.bpp / 8 / esize;
+ yelem = lcdc.yres;
+ break;
+ case 90:
+ case 180:
+ case 270:
+ if (cpu_is_omap15xx()) {
+ BUG();
+ }
+ esize = 2;
+ xelem = lcdc.yres * lcdc.bpp / 16;
+ yelem = lcdc.xres;
+ break;
+ default:
+ BUG();
+ return;
+ }
+#ifdef VERBOSE
+ dev_dbg(lcdc.fbdev->dev,
+ "setup_dma: src %#010lx esize %d xelem %d yelem %d\n",
+ src, esize, xelem, yelem);
+#endif
+ omap_set_lcd_dma_b1(src, xelem, yelem, dma_elem_type[esize]);
+ if (!cpu_is_omap15xx()) {
+ int bpp = lcdc.bpp;
+
+ /* YUV support is only for external mode when we have the
+ * YUV window embedded in a 16bpp frame buffer.
+ */
+ if (lcdc.color_mode == OMAPFB_COLOR_YUV420)
+ bpp = 16;
+ /* Set virtual xres elem size */
+ omap_set_lcd_dma_b1_vxres(
+ lcdc.screen_width * bpp / 8 / esize);
+ /* Setup transformations */
+ omap_set_lcd_dma_b1_rotation(var->rotate);
+ omap_set_lcd_dma_b1_mirror(plane->info.mirror);
+ }
+ omap_setup_lcd_dma();
+}
+
+static irqreturn_t lcdc_irq_handler(int irq, void *dev_id)
+{
+ u32 status;
+
+ status = omap_readl(OMAP_LCDC_STATUS);
+
+ if (status & (OMAP_LCDC_STAT_FUF | OMAP_LCDC_STAT_SYNC_LOST))
+ reset_controller(status);
+ else {
+ if (status & OMAP_LCDC_STAT_DONE) {
+ u32 l;
+
+ /* Disable IRQ_DONE. The status bit will be cleared
+ * only when the controller is reenabled and we don't
+ * want to get more interrupts.
+ */
+ l = omap_readl(OMAP_LCDC_CONTROL);
+ l &= ~OMAP_LCDC_IRQ_DONE;
+ omap_writel(l, OMAP_LCDC_CONTROL);
+ complete(&lcdc.last_frame_complete);
+ }
+ if (status & OMAP_LCDC_STAT_LOADED_PALETTE) {
+ disable_controller_async();
+ complete(&lcdc.palette_load_complete);
+ }
+ }
+
+ /* Clear these interrupt status bits.
+ * Sync_lost, FUF bits were cleared by disabling the LCD controller
+ * LOADED_PALETTE can be cleared this way only in palette only
+ * load mode. In other load modes it's cleared by disabling the
+ * controller.
+ */
+ status &= ~(OMAP_LCDC_STAT_VSYNC |
+ OMAP_LCDC_STAT_LOADED_PALETTE |
+ OMAP_LCDC_STAT_ABC |
+ OMAP_LCDC_STAT_LINE_INT);
+ omap_writel(status, OMAP_LCDC_STATUS);
+ return IRQ_HANDLED;
+}
+
+/* Change to a new video mode. We defer this to a later time to avoid any
+ * flicker and not to mess up the current LCD DMA context. For this we disable
+ * the LCD controler, which will generate a DONE irq after the last frame has
+ * been transferred. Then it'll be safe to reconfigure both the LCD controller
+ * as well as the LCD DMA.
+ */
+static int omap_lcdc_setup_plane(int plane, int channel_out,
+ unsigned long offset, int screen_width,
+ int pos_x, int pos_y, int width, int height,
+ int color_mode)
+{
+ struct fb_var_screeninfo *var = &lcdc.fbdev->fb_info[0]->var;
+ struct lcd_panel *panel = lcdc.fbdev->panel;
+ int rot_x, rot_y;
+
+ if (var->rotate == 0) {
+ rot_x = panel->x_res;
+ rot_y = panel->y_res;
+ } else {
+ rot_x = panel->y_res;
+ rot_y = panel->x_res;
+ }
+ if (plane != 0 || channel_out != 0 || pos_x != 0 || pos_y != 0 ||
+ width > rot_x || height > rot_y) {
+#ifdef VERBOSE
+ dev_dbg(lcdc.fbdev->dev,
+ "invalid plane params plane %d pos_x %d pos_y %d "
+ "w %d h %d\n", plane, pos_x, pos_y, width, height);
+#endif
+ return -EINVAL;
+ }
+
+ lcdc.frame_offset = offset;
+ lcdc.xres = width;
+ lcdc.yres = height;
+ lcdc.screen_width = screen_width;
+ lcdc.color_mode = color_mode;
+
+ switch (color_mode) {
+ case OMAPFB_COLOR_CLUT_8BPP:
+ lcdc.bpp = 8;
+ lcdc.palette_code = 0x3000;
+ lcdc.palette_size = 512;
+ break;
+ case OMAPFB_COLOR_RGB565:
+ lcdc.bpp = 16;
+ lcdc.palette_code = 0x4000;
+ lcdc.palette_size = 32;
+ break;
+ case OMAPFB_COLOR_RGB444:
+ lcdc.bpp = 16;
+ lcdc.palette_code = 0x4000;
+ lcdc.palette_size = 32;
+ break;
+ case OMAPFB_COLOR_YUV420:
+ if (lcdc.ext_mode) {
+ lcdc.bpp = 12;
+ break;
+ }
+ /* fallthrough */
+ case OMAPFB_COLOR_YUV422:
+ if (lcdc.ext_mode) {
+ lcdc.bpp = 16;
+ break;
+ }
+ /* fallthrough */
+ default:
+ /* FIXME: other BPPs.
+ * bpp1: code 0, size 256
+ * bpp2: code 0x1000 size 256
+ * bpp4: code 0x2000 size 256
+ * bpp12: code 0x4000 size 32
+ */
+ dev_dbg(lcdc.fbdev->dev, "invalid color mode %d\n", color_mode);
+ BUG();
+ return -1;
+ }
+
+ if (lcdc.ext_mode) {
+ setup_lcd_dma();
+ return 0;
+ }
+
+ if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) {
+ disable_controller();
+ omap_stop_lcd_dma();
+ setup_lcd_dma();
+ enable_controller();
+ }
+
+ return 0;
+}
+
+static int omap_lcdc_enable_plane(int plane, int enable)
+{
+ dev_dbg(lcdc.fbdev->dev,
+ "plane %d enable %d update_mode %d ext_mode %d\n",
+ plane, enable, lcdc.update_mode, lcdc.ext_mode);
+ if (plane != OMAPFB_PLANE_GFX)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* Configure the LCD DMA for a palette load operation and do the palette
+ * downloading synchronously. We don't use the frame+palette load mode of
+ * the controller, since the palette can always be downloaded seperately.
+ */
+static void load_palette(void)
+{
+ u16 *palette;
+
+ palette = (u16 *)lcdc.palette_virt;
+
+ *(u16 *)palette &= 0x0fff;
+ *(u16 *)palette |= lcdc.palette_code;
+
+ omap_set_lcd_dma_b1(lcdc.palette_phys,
+ lcdc.palette_size / 4 + 1, 1, OMAP_DMA_DATA_TYPE_S32);
+
+ omap_set_lcd_dma_single_transfer(1);
+ omap_setup_lcd_dma();
+
+ init_completion(&lcdc.palette_load_complete);
+ enable_irqs(OMAP_LCDC_IRQ_LOADED_PALETTE);
+ set_load_mode(OMAP_LCDC_LOAD_PALETTE);
+ enable_controller();
+ if (!wait_for_completion_timeout(&lcdc.palette_load_complete,
+ msecs_to_jiffies(500)))
+ dev_err(lcdc.fbdev->dev, "timeout waiting for FRAME DONE\n");
+ /* The controller gets disabled in the irq handler */
+ disable_irqs(OMAP_LCDC_IRQ_LOADED_PALETTE);
+ omap_stop_lcd_dma();
+
+ omap_set_lcd_dma_single_transfer(lcdc.ext_mode);
+}
+
+/* Used only in internal controller mode */
+static int omap_lcdc_setcolreg(u_int regno, u16 red, u16 green, u16 blue,
+ u16 transp, int update_hw_pal)
+{
+ u16 *palette;
+
+ if (lcdc.color_mode != OMAPFB_COLOR_CLUT_8BPP || regno > 255)
+ return -EINVAL;
+
+ palette = (u16 *)lcdc.palette_virt;
+
+ palette[regno] &= ~0x0fff;
+ palette[regno] |= ((red >> 12) << 8) | ((green >> 12) << 4 ) |
+ (blue >> 12);
+
+ if (update_hw_pal) {
+ disable_controller();
+ omap_stop_lcd_dma();
+ load_palette();
+ setup_lcd_dma();
+ set_load_mode(OMAP_LCDC_LOAD_FRAME);
+ enable_controller();
+ }
+
+ return 0;
+}
+
+static void calc_ck_div(int is_tft, int pck, int *pck_div)
+{
+ unsigned long lck;
+
+ pck = max(1, pck);
+ lck = clk_get_rate(lcdc.lcd_ck);
+ *pck_div = (lck + pck - 1) / pck;
+ if (is_tft)
+ *pck_div = max(2, *pck_div);
+ else
+ *pck_div = max(3, *pck_div);
+ if (*pck_div > 255) {
+ /* FIXME: try to adjust logic clock divider as well */
+ *pck_div = 255;
+ dev_warn(lcdc.fbdev->dev, "pixclock %d kHz too low.\n",
+ pck / 1000);
+ }
+}
+
+static void inline setup_regs(void)
+{
+ u32 l;
+ struct lcd_panel *panel = lcdc.fbdev->panel;
+ int is_tft = panel->config & OMAP_LCDC_PANEL_TFT;
+ unsigned long lck;
+ int pcd;
+
+ l = omap_readl(OMAP_LCDC_CONTROL);
+ l &= ~OMAP_LCDC_CTRL_LCD_TFT;
+ l |= is_tft ? OMAP_LCDC_CTRL_LCD_TFT : 0;
+#ifdef CONFIG_MACH_OMAP_PALMTE
+/* FIXME:if (machine_is_omap_palmte()) { */
+ /* PalmTE uses alternate TFT setting in 8BPP mode */
+ l |= (is_tft && panel->bpp == 8) ? 0x810000 : 0;
+/* } */
+#endif
+ omap_writel(l, OMAP_LCDC_CONTROL);
+
+ l = omap_readl(OMAP_LCDC_TIMING2);
+ l &= ~(((1 << 6) - 1) << 20);
+ l |= (panel->config & OMAP_LCDC_SIGNAL_MASK) << 20;
+ omap_writel(l, OMAP_LCDC_TIMING2);
+
+ l = panel->x_res - 1;
+ l |= (panel->hsw - 1) << 10;
+ l |= (panel->hfp - 1) << 16;
+ l |= (panel->hbp - 1) << 24;
+ omap_writel(l, OMAP_LCDC_TIMING0);
+
+ l = panel->y_res - 1;
+ l |= (panel->vsw - 1) << 10;
+ l |= panel->vfp << 16;
+ l |= panel->vbp << 24;
+ omap_writel(l, OMAP_LCDC_TIMING1);
+
+ l = omap_readl(OMAP_LCDC_TIMING2);
+ l &= ~0xff;
+
+ lck = clk_get_rate(lcdc.lcd_ck);
+
+ if (!panel->pcd)
+ calc_ck_div(is_tft, panel->pixel_clock * 1000, &pcd);
+ else {
+ dev_warn(lcdc.fbdev->dev,
+ "Pixel clock divider value is obsolete.\n"
+ "Try to set pixel_clock to %lu and pcd to 0 "
+ "in drivers/video/omap/lcd_%s.c and submit a patch.\n",
+ lck / panel->pcd / 1000, panel->name);
+
+ pcd = panel->pcd;
+ }
+ l |= pcd & 0xff;
+ l |= panel->acb << 8;
+ omap_writel(l, OMAP_LCDC_TIMING2);
+
+ /* update panel info with the exact clock */
+ panel->pixel_clock = lck / pcd / 1000;
+}
+
+/* Configure the LCD controller, download the color palette and start a looped
+ * DMA transfer of the frame image data. Called only in internal
+ * controller mode.
+ */
+static int omap_lcdc_set_update_mode(enum omapfb_update_mode mode)
+{
+ int r = 0;
+
+ if (mode != lcdc.update_mode) {
+ switch (mode) {
+ case OMAPFB_AUTO_UPDATE:
+ setup_regs();
+ load_palette();
+
+ /* Setup and start LCD DMA */
+ setup_lcd_dma();
+
+ set_load_mode(OMAP_LCDC_LOAD_FRAME);
+ enable_irqs(OMAP_LCDC_IRQ_DONE);
+ /* This will start the actual DMA transfer */
+ enable_controller();
+ lcdc.update_mode = mode;
+ break;
+ case OMAPFB_UPDATE_DISABLED:
+ disable_controller();
+ omap_stop_lcd_dma();
+ lcdc.update_mode = mode;
+ break;
+ default:
+ r = -EINVAL;
+ }
+ }
+
+ return r;
+}
+
+static enum omapfb_update_mode omap_lcdc_get_update_mode(void)
+{
+ return lcdc.update_mode;
+}
+
+/* PM code called only in internal controller mode */
+static void omap_lcdc_suspend(void)
+{
+ if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) {
+ disable_controller();
+ omap_stop_lcd_dma();
+ }
+}
+
+static void omap_lcdc_resume(void)
+{
+ if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) {
+ setup_regs();
+ load_palette();
+ setup_lcd_dma();
+ set_load_mode(OMAP_LCDC_LOAD_FRAME);
+ enable_irqs(OMAP_LCDC_IRQ_DONE);
+ enable_controller();
+ }
+}
+
+static unsigned long omap_lcdc_get_caps(void)
+{
+ return 0;
+}
+
+int omap_lcdc_set_dma_callback(void (*callback)(void *data), void *data)
+{
+ BUG_ON(callback == NULL);
+
+ if (lcdc.dma_callback)
+ return -EBUSY;
+ else {
+ lcdc.dma_callback = callback;
+ lcdc.dma_callback_data = data;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(omap_lcdc_set_dma_callback);
+
+void omap_lcdc_free_dma_callback(void)
+{
+ lcdc.dma_callback = NULL;
+}
+EXPORT_SYMBOL(omap_lcdc_free_dma_callback);
+
+static void lcdc_dma_handler(u16 status, void *data)
+{
+ if (lcdc.dma_callback)
+ lcdc.dma_callback(lcdc.dma_callback_data);
+}
+
+static int mmap_kern(void)
+{
+ struct vm_struct *kvma;
+ struct vm_area_struct vma;
+ pgprot_t pgprot;
+ unsigned long vaddr;
+
+ kvma = get_vm_area(lcdc.vram_size, VM_IOREMAP);
+ if (kvma == NULL) {
+ dev_err(lcdc.fbdev->dev, "can't get kernel vm area\n");
+ return -ENOMEM;
+ }
+ vma.vm_mm = &init_mm;
+
+ vaddr = (unsigned long)kvma->addr;
+ vma.vm_start = vaddr;
+ vma.vm_end = vaddr + lcdc.vram_size;
+
+ pgprot = pgprot_writecombine(pgprot_kernel);
+ if (io_remap_pfn_range(&vma, vaddr,
+ lcdc.vram_phys >> PAGE_SHIFT,
+ lcdc.vram_size, pgprot) < 0) {
+ dev_err(lcdc.fbdev->dev, "kernel mmap for FB memory failed\n");
+ return -EAGAIN;
+ }
+
+ lcdc.vram_virt = (void *)vaddr;
+
+ return 0;
+}
+
+static void unmap_kern(void)
+{
+ vunmap(lcdc.vram_virt);
+}
+
+static int alloc_palette_ram(void)
+{
+ lcdc.palette_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
+ MAX_PALETTE_SIZE, &lcdc.palette_phys, GFP_KERNEL);
+ if (lcdc.palette_virt == NULL) {
+ dev_err(lcdc.fbdev->dev, "failed to alloc palette memory\n");
+ return -ENOMEM;
+ }
+ memset(lcdc.palette_virt, 0, MAX_PALETTE_SIZE);
+
+ return 0;
+}
+
+static void free_palette_ram(void)
+{
+ dma_free_writecombine(lcdc.fbdev->dev, MAX_PALETTE_SIZE,
+ lcdc.palette_virt, lcdc.palette_phys);
+}
+
+static int alloc_fbmem(struct omapfb_mem_region *region)
+{
+ int bpp;
+ int frame_size;
+ struct lcd_panel *panel = lcdc.fbdev->panel;
+
+ bpp = panel->bpp;
+ if (bpp == 12)
+ bpp = 16;
+ frame_size = PAGE_ALIGN(panel->x_res * bpp / 8 * panel->y_res);
+ if (region->size > frame_size)
+ frame_size = region->size;
+ lcdc.vram_size = frame_size;
+ lcdc.vram_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
+ lcdc.vram_size, &lcdc.vram_phys, GFP_KERNEL);
+ if (lcdc.vram_virt == NULL) {
+ dev_err(lcdc.fbdev->dev, "unable to allocate FB DMA memory\n");
+ return -ENOMEM;
+ }
+ region->size = frame_size;
+ region->paddr = lcdc.vram_phys;
+ region->vaddr = lcdc.vram_virt;
+ region->alloc = 1;
+
+ memset(lcdc.vram_virt, 0, lcdc.vram_size);
+
+ return 0;
+}
+
+static void free_fbmem(void)
+{
+ dma_free_writecombine(lcdc.fbdev->dev, lcdc.vram_size,
+ lcdc.vram_virt, lcdc.vram_phys);
+}
+
+static int setup_fbmem(struct omapfb_mem_desc *req_md)
+{
+ int r;
+
+ if (!req_md->region_cnt) {
+ dev_err(lcdc.fbdev->dev, "no memory regions defined\n");
+ return -EINVAL;
+ }
+
+ if (req_md->region_cnt > 1) {
+ dev_err(lcdc.fbdev->dev, "only one plane is supported\n");
+ req_md->region_cnt = 1;
+ }
+
+ if (req_md->region[0].paddr == 0) {
+ lcdc.fbmem_allocated = 1;
+ if ((r = alloc_fbmem(&req_md->region[0])) < 0)
+ return r;
+ return 0;
+ }
+
+ lcdc.vram_phys = req_md->region[0].paddr;
+ lcdc.vram_size = req_md->region[0].size;
+
+ if ((r = mmap_kern()) < 0)
+ return r;
+
+ dev_dbg(lcdc.fbdev->dev, "vram at %08x size %08lx mapped to 0x%p\n",
+ lcdc.vram_phys, lcdc.vram_size, lcdc.vram_virt);
+
+ return 0;
+}
+
+static void cleanup_fbmem(void)
+{
+ if (lcdc.fbmem_allocated)
+ free_fbmem();
+ else
+ unmap_kern();
+}
+
+static int omap_lcdc_init(struct omapfb_device *fbdev, int ext_mode,
+ struct omapfb_mem_desc *req_vram)
+{
+ int r;
+ u32 l;
+ int rate;
+ struct clk *tc_ck;
+
+ lcdc.irq_mask = 0;
+
+ lcdc.fbdev = fbdev;
+ lcdc.ext_mode = ext_mode;
+
+ l = 0;
+ omap_writel(l, OMAP_LCDC_CONTROL);
+
+ /* FIXME:
+ * According to errata some platforms have a clock rate limitiation
+ */
+ lcdc.lcd_ck = clk_get(NULL, "lcd_ck");
+ if (IS_ERR(lcdc.lcd_ck)) {
+ dev_err(fbdev->dev, "unable to access LCD clock\n");
+ r = PTR_ERR(lcdc.lcd_ck);
+ goto fail0;
+ }
+
+ tc_ck = clk_get(NULL, "tc_ck");
+ if (IS_ERR(tc_ck)) {
+ dev_err(fbdev->dev, "unable to access TC clock\n");
+ r = PTR_ERR(tc_ck);
+ goto fail1;
+ }
+
+ rate = clk_get_rate(tc_ck);
+ clk_put(tc_ck);
+
+ if (machine_is_ams_delta())
+ rate /= 4;
+ if (machine_is_omap_h3())
+ rate /= 3;
+ r = clk_set_rate(lcdc.lcd_ck, rate);
+ if (r) {
+ dev_err(fbdev->dev, "failed to adjust LCD rate\n");
+ goto fail1;
+ }
+ clk_enable(lcdc.lcd_ck);
+
+ r = request_irq(OMAP_LCDC_IRQ, lcdc_irq_handler, 0, MODULE_NAME, fbdev);
+ if (r) {
+ dev_err(fbdev->dev, "unable to get IRQ\n");
+ goto fail2;
+ }
+
+ r = omap_request_lcd_dma(lcdc_dma_handler, NULL);
+ if (r) {
+ dev_err(fbdev->dev, "unable to get LCD DMA\n");
+ goto fail3;
+ }
+
+ omap_set_lcd_dma_single_transfer(ext_mode);
+ omap_set_lcd_dma_ext_controller(ext_mode);
+
+ if (!ext_mode)
+ if ((r = alloc_palette_ram()) < 0)
+ goto fail4;
+
+ if ((r = setup_fbmem(req_vram)) < 0)
+ goto fail5;
+
+ pr_info("omapfb: LCDC initialized\n");
+
+ return 0;
+fail5:
+ if (!ext_mode)
+ free_palette_ram();
+fail4:
+ omap_free_lcd_dma();
+fail3:
+ free_irq(OMAP_LCDC_IRQ, lcdc.fbdev);
+fail2:
+ clk_disable(lcdc.lcd_ck);
+fail1:
+ clk_put(lcdc.lcd_ck);
+fail0:
+ return r;
+}
+
+static void omap_lcdc_cleanup(void)
+{
+ if (!lcdc.ext_mode)
+ free_palette_ram();
+ cleanup_fbmem();
+ omap_free_lcd_dma();
+ free_irq(OMAP_LCDC_IRQ, lcdc.fbdev);
+ clk_disable(lcdc.lcd_ck);
+ clk_put(lcdc.lcd_ck);
+}
+
+const struct lcd_ctrl omap1_int_ctrl = {
+ .name = "internal",
+ .init = omap_lcdc_init,
+ .cleanup = omap_lcdc_cleanup,
+ .get_caps = omap_lcdc_get_caps,
+ .set_update_mode = omap_lcdc_set_update_mode,
+ .get_update_mode = omap_lcdc_get_update_mode,
+ .update_window = NULL,
+ .suspend = omap_lcdc_suspend,
+ .resume = omap_lcdc_resume,
+ .setup_plane = omap_lcdc_setup_plane,
+ .enable_plane = omap_lcdc_enable_plane,
+ .setcolreg = omap_lcdc_setcolreg,
+};
--- /dev/null
+#ifndef LCDC_H
+#define LCDC_H
+
+int omap_lcdc_set_dma_callback(void (*callback)(void *data), void *data);
+void omap_lcdc_free_dma_callback(void);
+
+#endif
--- /dev/null
+/*
+ * File: drivers/video/omap/omapfb_main.c
+ *
+ * Framebuffer driver for TI OMAP boards
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * Acknowledgements:
+ * Alex McMains <aam@ridgerun.com> - Original driver
+ * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements
+ * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API
+ * Texas Instruments - H3 support
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/platform_device.h>
+
+#include <asm/uaccess.h>
+#include <asm/mach-types.h>
+#include <asm/arch/dma.h>
+#include <asm/arch/omapfb.h>
+
+#define MODULE_NAME "omapfb"
+
+static unsigned int def_accel;
+static unsigned long def_vram[OMAPFB_PLANE_NUM];
+static int def_vram_cnt;
+static unsigned long def_vxres;
+static unsigned long def_vyres;
+static unsigned int def_rotate;
+static unsigned int def_mirror;
+
+#ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
+static int manual_update = 1;
+#else
+static int manual_update;
+#endif
+
+static struct platform_device *fbdev_pdev;
+static struct lcd_panel *fbdev_panel;
+static struct omapfb_device *omapfb_dev;
+
+struct caps_table_struct {
+ unsigned long flag;
+ const char *name;
+};
+
+static struct caps_table_struct ctrl_caps[] = {
+ { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
+ { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
+ { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
+ { OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
+ { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
+ { OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
+ { OMAPFB_CAPS_WINDOW_OVERLAY,"overlay window" },
+ { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
+};
+
+static struct caps_table_struct color_caps[] = {
+ { 1 << OMAPFB_COLOR_RGB565, "RGB565", },
+ { 1 << OMAPFB_COLOR_YUV422, "YUV422", },
+ { 1 << OMAPFB_COLOR_YUV420, "YUV420", },
+ { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
+ { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
+ { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
+ { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
+ { 1 << OMAPFB_COLOR_RGB444, "RGB444", },
+ { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
+};
+
+/*
+ * ---------------------------------------------------------------------------
+ * LCD panel
+ * ---------------------------------------------------------------------------
+ */
+extern struct lcd_ctrl omap1_int_ctrl;
+extern struct lcd_ctrl omap2_int_ctrl;
+extern struct lcd_ctrl hwa742_ctrl;
+extern struct lcd_ctrl blizzard_ctrl;
+
+static struct lcd_ctrl *ctrls[] = {
+#ifdef CONFIG_ARCH_OMAP1
+ &omap1_int_ctrl,
+#else
+ &omap2_int_ctrl,
+#endif
+
+#ifdef CONFIG_FB_OMAP_LCDC_HWA742
+ &hwa742_ctrl,
+#endif
+#ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD
+ &blizzard_ctrl,
+#endif
+};
+
+#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
+#ifdef CONFIG_ARCH_OMAP1
+extern struct lcd_ctrl_extif omap1_ext_if;
+#else
+extern struct lcd_ctrl_extif omap2_ext_if;
+#endif
+#endif
+
+static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
+{
+ mutex_lock(&fbdev->rqueue_mutex);
+}
+
+static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
+{
+ mutex_unlock(&fbdev->rqueue_mutex);
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * LCD controller and LCD DMA
+ * ---------------------------------------------------------------------------
+ */
+/* Lookup table to map elem size to elem type. */
+static const int dma_elem_type[] = {
+ 0,
+ OMAP_DMA_DATA_TYPE_S8,
+ OMAP_DMA_DATA_TYPE_S16,
+ 0,
+ OMAP_DMA_DATA_TYPE_S32,
+};
+
+/* Allocate resources needed for LCD controller and LCD DMA operations. Video
+ * memory is allocated from system memory according to the virtual display
+ * size, except if a bigger memory size is specified explicitly as a kernel
+ * parameter.
+ */
+static int ctrl_init(struct omapfb_device *fbdev)
+{
+ int r;
+ int i;
+
+ /* kernel/module vram parameters override boot tags/board config */
+ if (def_vram_cnt) {
+ for (i = 0; i < def_vram_cnt; i++)
+ fbdev->mem_desc.region[i].size =
+ PAGE_ALIGN(def_vram[i]);
+ fbdev->mem_desc.region_cnt = i;
+ } else {
+ struct omapfb_platform_data *conf;
+
+ conf = fbdev->dev->platform_data;
+ fbdev->mem_desc = conf->mem_desc;
+ }
+
+ if (!fbdev->mem_desc.region_cnt) {
+ struct lcd_panel *panel = fbdev->panel;
+ int def_size;
+ int bpp = panel->bpp;
+
+ /* 12 bpp is packed in 16 bits */
+ if (bpp == 12)
+ bpp = 16;
+ def_size = def_vxres * def_vyres * bpp / 8;
+ fbdev->mem_desc.region_cnt = 1;
+ fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
+ }
+ r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
+ if (r < 0) {
+ dev_err(fbdev->dev, "controller initialization failed (%d)\n", r);
+ return r;
+ }
+
+#ifdef DEBUG
+ for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
+ dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
+ i,
+ fbdev->mem_desc.region[i].paddr,
+ fbdev->mem_desc.region[i].vaddr,
+ fbdev->mem_desc.region[i].size);
+ }
+#endif
+ return 0;
+}
+
+static void ctrl_cleanup(struct omapfb_device *fbdev)
+{
+ fbdev->ctrl->cleanup();
+}
+
+/* Must be called with fbdev->rqueue_mutex held. */
+static int ctrl_change_mode(struct fb_info *fbi)
+{
+ int r;
+ unsigned long offset;
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct fb_var_screeninfo *var = &fbi->var;
+
+ offset = var->yoffset * fbi->fix.line_length +
+ var->xoffset * var->bits_per_pixel / 8;
+
+ if (fbdev->ctrl->sync)
+ fbdev->ctrl->sync();
+ r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
+ offset, var->xres_virtual,
+ plane->info.pos_x, plane->info.pos_y,
+ var->xres, var->yres, plane->color_mode);
+ if (fbdev->ctrl->set_scale != NULL)
+ r = fbdev->ctrl->set_scale(plane->idx,
+ var->xres, var->yres,
+ plane->info.out_width,
+ plane->info.out_height);
+
+ return r;
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * fbdev framework callbacks and the ioctl interface
+ * ---------------------------------------------------------------------------
+ */
+/* Called each time the omapfb device is opened */
+static int omapfb_open(struct fb_info *info, int user)
+{
+ return 0;
+}
+
+static void omapfb_sync(struct fb_info *info);
+
+/* Called when the omapfb device is closed. We make sure that any pending
+ * gfx DMA operations are ended, before we return. */
+static int omapfb_release(struct fb_info *info, int user)
+{
+ omapfb_sync(info);
+ return 0;
+}
+
+/* Store a single color palette entry into a pseudo palette or the hardware
+ * palette if one is available. For now we support only 16bpp and thus store
+ * the entry only to the pseudo palette.
+ */
+static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
+ u_int blue, u_int transp, int update_hw_pal)
+{
+ struct omapfb_plane_struct *plane = info->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct fb_var_screeninfo *var = &info->var;
+ int r = 0;
+
+ switch (plane->color_mode) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUV420:
+ case OMAPFB_COLOR_YUY422:
+ r = -EINVAL;
+ break;
+ case OMAPFB_COLOR_CLUT_8BPP:
+ case OMAPFB_COLOR_CLUT_4BPP:
+ case OMAPFB_COLOR_CLUT_2BPP:
+ case OMAPFB_COLOR_CLUT_1BPP:
+ if (fbdev->ctrl->setcolreg)
+ r = fbdev->ctrl->setcolreg(regno, red, green, blue,
+ transp, update_hw_pal);
+ /* Fallthrough */
+ case OMAPFB_COLOR_RGB565:
+ case OMAPFB_COLOR_RGB444:
+ if (r != 0)
+ break;
+
+ if (regno < 0) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (regno < 16) {
+ u16 pal;
+ pal = ((red >> (16 - var->red.length)) <<
+ var->red.offset) |
+ ((green >> (16 - var->green.length)) <<
+ var->green.offset) |
+ (blue >> (16 - var->blue.length));
+ ((u32 *)(info->pseudo_palette))[regno] = pal;
+ }
+ break;
+ default:
+ BUG();
+ }
+ return r;
+}
+
+static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ return _setcolreg(info, regno, red, green, blue, transp, 1);
+}
+
+static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
+{
+ int count, index, r;
+ u16 *red, *green, *blue, *transp;
+ u16 trans = 0xffff;
+
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ index = cmap->start;
+
+ for (count = 0; count < cmap->len; count++) {
+ if (transp)
+ trans = *transp++;
+ r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
+ count == cmap->len - 1);
+ if (r != 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int omapfb_update_full_screen(struct fb_info *fbi);
+
+static int omapfb_blank(int blank, struct fb_info *fbi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ int do_update = 0;
+ int r = 0;
+
+ omapfb_rqueue_lock(fbdev);
+ switch (blank) {
+ case VESA_NO_BLANKING:
+ if (fbdev->state == OMAPFB_SUSPENDED) {
+ if (fbdev->ctrl->resume)
+ fbdev->ctrl->resume();
+ fbdev->panel->enable(fbdev->panel);
+ fbdev->state = OMAPFB_ACTIVE;
+ if (fbdev->ctrl->get_update_mode() ==
+ OMAPFB_MANUAL_UPDATE)
+ do_update = 1;
+ }
+ break;
+ case VESA_POWERDOWN:
+ if (fbdev->state == OMAPFB_ACTIVE) {
+ fbdev->panel->disable(fbdev->panel);
+ if (fbdev->ctrl->suspend)
+ fbdev->ctrl->suspend();
+ fbdev->state = OMAPFB_SUSPENDED;
+ }
+ break;
+ default:
+ r = -EINVAL;
+ }
+ omapfb_rqueue_unlock(fbdev);
+
+ if (r == 0 && do_update)
+ r = omapfb_update_full_screen(fbi);
+
+ return r;
+}
+
+static void omapfb_sync(struct fb_info *fbi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+
+ omapfb_rqueue_lock(fbdev);
+ if (fbdev->ctrl->sync)
+ fbdev->ctrl->sync();
+ omapfb_rqueue_unlock(fbdev);
+}
+
+/* Set fb_info.fix fields and also updates fbdev.
+ * When calling this fb_info.var must be set up already.
+ */
+static void set_fb_fix(struct fb_info *fbi)
+{
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_mem_region *rg;
+ int bpp;
+
+ rg = &plane->fbdev->mem_desc.region[plane->idx];
+ fbi->screen_base = (char __iomem *)rg->vaddr;
+ fix->smem_start = rg->paddr;
+ fix->smem_len = rg->size;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ bpp = var->bits_per_pixel;
+ if (var->nonstd)
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ else switch (var->bits_per_pixel) {
+ case 16:
+ case 12:
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ /* 12bpp is stored in 16 bits */
+ bpp = 16;
+ break;
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ break;
+ }
+ fix->accel = FB_ACCEL_OMAP1610;
+ fix->line_length = var->xres_virtual * bpp / 8;
+}
+
+static int set_color_mode(struct omapfb_plane_struct *plane,
+ struct fb_var_screeninfo *var)
+{
+ switch (var->nonstd) {
+ case 0:
+ break;
+ case OMAPFB_COLOR_YUV422:
+ var->bits_per_pixel = 16;
+ plane->color_mode = var->nonstd;
+ return 0;
+ case OMAPFB_COLOR_YUV420:
+ var->bits_per_pixel = 12;
+ plane->color_mode = var->nonstd;
+ return 0;
+ case OMAPFB_COLOR_YUY422:
+ var->bits_per_pixel = 16;
+ plane->color_mode = var->nonstd;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 1:
+ plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
+ return 0;
+ case 2:
+ plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
+ return 0;
+ case 4:
+ plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
+ return 0;
+ case 8:
+ plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
+ return 0;
+ case 12:
+ var->bits_per_pixel = 16;
+ plane->color_mode = OMAPFB_COLOR_RGB444;
+ return 0;
+ case 16:
+ plane->color_mode = OMAPFB_COLOR_RGB565;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/* Check the values in var against our capabilities and in case of out of
+ * bound values try to adjust them.
+ */
+static int set_fb_var(struct fb_info *fbi,
+ struct fb_var_screeninfo *var)
+{
+ int bpp;
+ unsigned long max_frame_size;
+ unsigned long line_size;
+ int xres_min, xres_max;
+ int yres_min, yres_max;
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct lcd_panel *panel = fbdev->panel;
+
+ if (set_color_mode(plane, var) < 0)
+ return -EINVAL;
+
+ bpp = var->bits_per_pixel;
+ if (plane->color_mode == OMAPFB_COLOR_RGB444)
+ bpp = 16;
+
+ switch (var->rotate) {
+ case 0:
+ case 180:
+ xres_min = OMAPFB_PLANE_XRES_MIN;
+ xres_max = panel->x_res;
+ yres_min = OMAPFB_PLANE_YRES_MIN;
+ yres_max = panel->y_res;
+ if (cpu_is_omap15xx()) {
+ var->xres = panel->x_res;
+ var->yres = panel->y_res;
+ }
+ break;
+ case 90:
+ case 270:
+ xres_min = OMAPFB_PLANE_YRES_MIN;
+ xres_max = panel->y_res;
+ yres_min = OMAPFB_PLANE_XRES_MIN;
+ yres_max = panel->x_res;
+ if (cpu_is_omap15xx()) {
+ var->xres = panel->y_res;
+ var->yres = panel->x_res;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (var->xres < xres_min)
+ var->xres = xres_min;
+ if (var->yres < yres_min)
+ var->yres = yres_min;
+ if (var->xres > xres_max)
+ var->xres = xres_max;
+ if (var->yres > yres_max)
+ var->yres = yres_max;
+
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+ max_frame_size = fbdev->mem_desc.region[plane->idx].size;
+ line_size = var->xres_virtual * bpp / 8;
+ if (line_size * var->yres_virtual > max_frame_size) {
+ /* Try to keep yres_virtual first */
+ line_size = max_frame_size / var->yres_virtual;
+ var->xres_virtual = line_size * 8 / bpp;
+ if (var->xres_virtual < var->xres) {
+ /* Still doesn't fit. Shrink yres_virtual too */
+ var->xres_virtual = var->xres;
+ line_size = var->xres * bpp / 8;
+ var->yres_virtual = max_frame_size / line_size;
+ }
+ /* Recheck this, as the virtual size changed. */
+ if (var->xres_virtual < var->xres)
+ var->xres = var->xres_virtual;
+ if (var->yres_virtual < var->yres)
+ var->yres = var->yres_virtual;
+ if (var->xres < xres_min || var->yres < yres_min)
+ return -EINVAL;
+ }
+ if (var->xres + var->xoffset > var->xres_virtual)
+ var->xoffset = var->xres_virtual - var->xres;
+ if (var->yres + var->yoffset > var->yres_virtual)
+ var->yoffset = var->yres_virtual - var->yres;
+ line_size = var->xres * bpp / 8;
+
+ if (plane->color_mode == OMAPFB_COLOR_RGB444) {
+ var->red.offset = 8; var->red.length = 4;
+ var->red.msb_right = 0;
+ var->green.offset = 4; var->green.length = 4;
+ var->green.msb_right = 0;
+ var->blue.offset = 0; var->blue.length = 4;
+ var->blue.msb_right = 0;
+ } else {
+ var->red.offset = 11; var->red.length = 5;
+ var->red.msb_right = 0;
+ var->green.offset= 5; var->green.length = 6;
+ var->green.msb_right = 0;
+ var->blue.offset = 0; var->blue.length = 5;
+ var->blue.msb_right = 0;
+ }
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ /* pixclock in ps, the rest in pixclock */
+ var->pixclock = 10000000 / (panel->pixel_clock / 100);
+ var->left_margin = panel->hfp;
+ var->right_margin = panel->hbp;
+ var->upper_margin = panel->vfp;
+ var->lower_margin = panel->vbp;
+ var->hsync_len = panel->hsw;
+ var->vsync_len = panel->vsw;
+
+ /* TODO: get these from panel->config */
+ var->vmode = FB_VMODE_NONINTERLACED;
+ var->sync = 0;
+
+ return 0;
+}
+
+
+/* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
+static void omapfb_rotate(struct fb_info *fbi, int rotate)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+
+ omapfb_rqueue_lock(fbdev);
+ if (cpu_is_omap15xx() && rotate != fbi->var.rotate) {
+ struct fb_var_screeninfo *new_var = &fbdev->new_var;
+
+ memcpy(new_var, &fbi->var, sizeof(*new_var));
+ new_var->rotate = rotate;
+ if (set_fb_var(fbi, new_var) == 0 &&
+ memcmp(new_var, &fbi->var, sizeof(*new_var))) {
+ memcpy(&fbi->var, new_var, sizeof(*new_var));
+ ctrl_change_mode(fbi);
+ }
+ }
+ omapfb_rqueue_unlock(fbdev);
+}
+
+/* Set new x,y offsets in the virtual display for the visible area and switch
+ * to the new mode.
+ */
+static int omapfb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *fbi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ int r = 0;
+
+ omapfb_rqueue_lock(fbdev);
+ if (var->xoffset != fbi->var.xoffset ||
+ var->yoffset != fbi->var.yoffset) {
+ struct fb_var_screeninfo *new_var = &fbdev->new_var;
+
+ memcpy(new_var, &fbi->var, sizeof(*new_var));
+ new_var->xoffset = var->xoffset;
+ new_var->yoffset = var->yoffset;
+ if (set_fb_var(fbi, new_var))
+ r = -EINVAL;
+ else {
+ memcpy(&fbi->var, new_var, sizeof(*new_var));
+ ctrl_change_mode(fbi);
+ }
+ }
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+/* Set mirror to vertical axis and switch to the new mode. */
+static int omapfb_mirror(struct fb_info *fbi, int mirror)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ int r = 0;
+
+ omapfb_rqueue_lock(fbdev);
+ mirror = mirror ? 1 : 0;
+ if (cpu_is_omap15xx())
+ r = -EINVAL;
+ else if (mirror != plane->info.mirror) {
+ plane->info.mirror = mirror;
+ r = ctrl_change_mode(fbi);
+ }
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+/* Check values in var, try to adjust them in case of out of bound values if
+ * possible, or return error.
+ */
+static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ int r;
+
+ omapfb_rqueue_lock(fbdev);
+ if (fbdev->ctrl->sync != NULL)
+ fbdev->ctrl->sync();
+ r = set_fb_var(fbi, var);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+/* Switch to a new mode. The parameters for it has been check already by
+ * omapfb_check_var.
+ */
+static int omapfb_set_par(struct fb_info *fbi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ int r = 0;
+
+ omapfb_rqueue_lock(fbdev);
+ set_fb_fix(fbi);
+ r = ctrl_change_mode(fbi);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+int omapfb_update_window_async(struct fb_info *fbi,
+ struct omapfb_update_window *win,
+ void (*callback)(void *),
+ void *callback_data)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct fb_var_screeninfo *var;
+
+ var = &fbi->var;
+ if (win->x >= var->xres || win->y >= var->yres ||
+ win->out_x > var->xres || win->out_y >= var->yres)
+ return -EINVAL;
+
+ if (!fbdev->ctrl->update_window ||
+ fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
+ return -ENODEV;
+
+ if (win->x + win->width >= var->xres)
+ win->width = var->xres - win->x;
+ if (win->y + win->height >= var->yres)
+ win->height = var->yres - win->y;
+ /* The out sizes should be cropped to the LCD size */
+ if (win->out_x + win->out_width > fbdev->panel->x_res)
+ win->out_width = fbdev->panel->x_res - win->out_x;
+ if (win->out_y + win->out_height > fbdev->panel->y_res)
+ win->out_height = fbdev->panel->y_res - win->out_y;
+ if (!win->width || !win->height || !win->out_width || !win->out_height)
+ return 0;
+
+ return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
+}
+EXPORT_SYMBOL(omapfb_update_window_async);
+
+static int omapfb_update_win(struct fb_info *fbi,
+ struct omapfb_update_window *win)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ int ret;
+
+ omapfb_rqueue_lock(plane->fbdev);
+ ret = omapfb_update_window_async(fbi, win, NULL, 0);
+ omapfb_rqueue_unlock(plane->fbdev);
+
+ return ret;
+}
+
+static int omapfb_update_full_screen(struct fb_info *fbi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct omapfb_update_window win;
+ int r;
+
+ if (!fbdev->ctrl->update_window ||
+ fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
+ return -ENODEV;
+
+ win.x = 0;
+ win.y = 0;
+ win.width = fbi->var.xres;
+ win.height = fbi->var.yres;
+ win.out_x = 0;
+ win.out_y = 0;
+ win.out_width = fbi->var.xres;
+ win.out_height = fbi->var.yres;
+ win.format = 0;
+
+ omapfb_rqueue_lock(fbdev);
+ r = fbdev->ctrl->update_window(fbi, &win, NULL, 0);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct lcd_panel *panel = fbdev->panel;
+ struct omapfb_plane_info old_info;
+ int r = 0;
+
+ if (pi->pos_x + pi->out_width > panel->x_res ||
+ pi->pos_y + pi->out_height > panel->y_res)
+ return -EINVAL;
+
+ omapfb_rqueue_lock(fbdev);
+ if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
+ /* This plane's memory was freed, can't enable it
+ * until it's reallocated.
+ */
+ r = -EINVAL;
+ goto out;
+ }
+ old_info = plane->info;
+ plane->info = *pi;
+ if (pi->enabled) {
+ r = ctrl_change_mode(fbi);
+ if (r < 0) {
+ plane->info = old_info;
+ goto out;
+ }
+ }
+ r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
+ if (r < 0) {
+ plane->info = old_info;
+ goto out;
+ }
+out:
+ omapfb_rqueue_unlock(fbdev);
+ return r;
+}
+
+static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+
+ *pi = plane->info;
+ return 0;
+}
+
+static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
+ size_t size;
+ int r = 0;
+
+ if (fbdev->ctrl->setup_mem == NULL)
+ return -ENODEV;
+ if (mi->type > OMAPFB_MEMTYPE_MAX)
+ return -EINVAL;
+
+ size = PAGE_ALIGN(mi->size);
+ omapfb_rqueue_lock(fbdev);
+ if (plane->info.enabled) {
+ r = -EBUSY;
+ goto out;
+ }
+ if (rg->size != size || rg->type != mi->type) {
+ struct fb_var_screeninfo *new_var = &fbdev->new_var;
+ unsigned long old_size = rg->size;
+ u8 old_type = rg->type;
+ unsigned long paddr;
+
+ rg->size = size;
+ rg->type = mi->type;
+ /* size == 0 is a special case, for which we
+ * don't check / adjust the screen parameters.
+ * This isn't a problem since the plane can't
+ * be reenabled unless its size is > 0.
+ */
+ if (old_size != size && size) {
+ if (size) {
+ memcpy(new_var, &fbi->var, sizeof(*new_var));
+ r = set_fb_var(fbi, new_var);
+ if (r < 0)
+ goto out;
+ }
+ }
+
+ if (fbdev->ctrl->sync)
+ fbdev->ctrl->sync();
+ r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
+ if (r < 0) {
+ /* Revert changes. */
+ rg->size = old_size;
+ rg->type = old_type;
+ goto out;
+ }
+ rg->paddr = paddr;
+
+ if (old_size != size) {
+ if (size) {
+ memcpy(&fbi->var, new_var, sizeof(fbi->var));
+ set_fb_fix(fbi);
+ } else {
+ /* Set these explicitly to indicate that the
+ * plane memory is dealloce'd, the other
+ * screen parameters in var / fix are invalid.
+ */
+ fbi->fix.smem_start = 0;
+ fbi->fix.smem_len = 0;
+ }
+ }
+ }
+out:
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct omapfb_mem_region *rg;
+
+ rg = &fbdev->mem_desc.region[plane->idx];
+ memset(mi, 0, sizeof(*mi));
+ mi->size = rg->size;
+ mi->type = rg->type;
+
+ return 0;
+}
+
+static int omapfb_set_color_key(struct omapfb_device *fbdev,
+ struct omapfb_color_key *ck)
+{
+ int r;
+
+ if (!fbdev->ctrl->set_color_key)
+ return -ENODEV;
+
+ omapfb_rqueue_lock(fbdev);
+ r = fbdev->ctrl->set_color_key(ck);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+static int omapfb_get_color_key(struct omapfb_device *fbdev,
+ struct omapfb_color_key *ck)
+{
+ int r;
+
+ if (!fbdev->ctrl->get_color_key)
+ return -ENODEV;
+
+ omapfb_rqueue_lock(fbdev);
+ r = fbdev->ctrl->get_color_key(ck);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
+static int notifier_inited;
+
+static void omapfb_init_notifier(void)
+{
+ int i;
+
+ for (i = 0; i < OMAPFB_PLANE_NUM; i++)
+ BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
+}
+
+int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
+ omapfb_notifier_callback_t callback,
+ void *callback_data)
+{
+ int r;
+
+ if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
+ return -EINVAL;
+
+ if (!notifier_inited) {
+ omapfb_init_notifier();
+ notifier_inited = 1;
+ }
+
+ omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
+ unsigned long, void *))callback;
+ omapfb_nb->data = callback_data;
+ r = blocking_notifier_chain_register(
+ &omapfb_client_list[omapfb_nb->plane_idx],
+ &omapfb_nb->nb);
+ if (r)
+ return r;
+ if (omapfb_dev != NULL &&
+ omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
+ omapfb_dev->ctrl->bind_client(omapfb_nb);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(omapfb_register_client);
+
+int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
+{
+ return blocking_notifier_chain_unregister(
+ &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
+}
+EXPORT_SYMBOL(omapfb_unregister_client);
+
+void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
+{
+ int i;
+
+ if (!notifier_inited)
+ /* no client registered yet */
+ return;
+
+ for (i = 0; i < OMAPFB_PLANE_NUM; i++)
+ blocking_notifier_call_chain(&omapfb_client_list[i], event,
+ fbdev->fb_info[i]);
+}
+EXPORT_SYMBOL(omapfb_notify_clients);
+
+static int omapfb_set_update_mode(struct omapfb_device *fbdev,
+ enum omapfb_update_mode mode)
+{
+ int r;
+
+ omapfb_rqueue_lock(fbdev);
+ r = fbdev->ctrl->set_update_mode(mode);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
+{
+ int r;
+
+ omapfb_rqueue_lock(fbdev);
+ r = fbdev->ctrl->get_update_mode();
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
+ struct omapfb_caps *caps)
+{
+ memset(caps, 0, sizeof(*caps));
+ fbdev->ctrl->get_caps(plane, caps);
+ caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
+}
+
+/* For lcd testing */
+void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
+{
+ omapfb_rqueue_lock(fbdev);
+ *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
+ if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
+ struct omapfb_update_window win;
+
+ memset(&win, 0, sizeof(win));
+ win.width = 2;
+ win.height = 2;
+ win.out_width = 2;
+ win.out_height = 2;
+ fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, 0);
+ }
+ omapfb_rqueue_unlock(fbdev);
+}
+EXPORT_SYMBOL(omapfb_write_first_pixel);
+
+/* Ioctl interface. Part of the kernel mode frame buffer API is duplicated
+ * here to be accessible by user mode code.
+ */
+static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
+ unsigned long arg)
+{
+ struct omapfb_plane_struct *plane = fbi->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ struct fb_ops *ops = fbi->fbops;
+ union {
+ struct omapfb_update_window update_window;
+ struct omapfb_plane_info plane_info;
+ struct omapfb_mem_info mem_info;
+ struct omapfb_color_key color_key;
+ enum omapfb_update_mode update_mode;
+ struct omapfb_caps caps;
+ unsigned int mirror;
+ int plane_out;
+ int enable_plane;
+ } p;
+ int r = 0;
+
+ BUG_ON(!ops);
+ switch (cmd)
+ {
+ case OMAPFB_MIRROR:
+ if (get_user(p.mirror, (int __user *)arg))
+ r = -EFAULT;
+ else
+ omapfb_mirror(fbi, p.mirror);
+ break;
+ case OMAPFB_SYNC_GFX:
+ omapfb_sync(fbi);
+ break;
+ case OMAPFB_VSYNC:
+ break;
+ case OMAPFB_SET_UPDATE_MODE:
+ if (get_user(p.update_mode, (int __user *)arg))
+ r = -EFAULT;
+ else
+ r = omapfb_set_update_mode(fbdev, p.update_mode);
+ break;
+ case OMAPFB_GET_UPDATE_MODE:
+ p.update_mode = omapfb_get_update_mode(fbdev);
+ if (put_user(p.update_mode,
+ (enum omapfb_update_mode __user *)arg))
+ r = -EFAULT;
+ break;
+ case OMAPFB_UPDATE_WINDOW_OLD:
+ if (copy_from_user(&p.update_window, (void __user *)arg,
+ sizeof(struct omapfb_update_window_old)))
+ r = -EFAULT;
+ else {
+ struct omapfb_update_window *u = &p.update_window;
+ u->out_x = u->x;
+ u->out_y = u->y;
+ u->out_width = u->width;
+ u->out_height = u->height;
+ memset(u->reserved, 0, sizeof(u->reserved));
+ r = omapfb_update_win(fbi, u);
+ }
+ break;
+ case OMAPFB_UPDATE_WINDOW:
+ if (copy_from_user(&p.update_window, (void __user *)arg,
+ sizeof(p.update_window)))
+ r = -EFAULT;
+ else
+ r = omapfb_update_win(fbi, &p.update_window);
+ break;
+ case OMAPFB_SETUP_PLANE:
+ if (copy_from_user(&p.plane_info, (void __user *)arg,
+ sizeof(p.plane_info)))
+ r = -EFAULT;
+ else
+ r = omapfb_setup_plane(fbi, &p.plane_info);
+ break;
+ case OMAPFB_QUERY_PLANE:
+ if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.plane_info,
+ sizeof(p.plane_info)))
+ r = -EFAULT;
+ break;
+ case OMAPFB_SETUP_MEM:
+ if (copy_from_user(&p.mem_info, (void __user *)arg,
+ sizeof(p.mem_info)))
+ r = -EFAULT;
+ else
+ r = omapfb_setup_mem(fbi, &p.mem_info);
+ break;
+ case OMAPFB_QUERY_MEM:
+ if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.mem_info,
+ sizeof(p.mem_info)))
+ r = -EFAULT;
+ break;
+ case OMAPFB_SET_COLOR_KEY:
+ if (copy_from_user(&p.color_key, (void __user *)arg,
+ sizeof(p.color_key)))
+ r = -EFAULT;
+ else
+ r = omapfb_set_color_key(fbdev, &p.color_key);
+ break;
+ case OMAPFB_GET_COLOR_KEY:
+ if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.color_key,
+ sizeof(p.color_key)))
+ r = -EFAULT;
+ break;
+ case OMAPFB_GET_CAPS:
+ omapfb_get_caps(fbdev, plane->idx, &p.caps);
+ if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
+ r = -EFAULT;
+ break;
+ case OMAPFB_LCD_TEST:
+ {
+ int test_num;
+
+ if (get_user(test_num, (int __user *)arg)) {
+ r = -EFAULT;
+ break;
+ }
+ if (!fbdev->panel->run_test) {
+ r = -EINVAL;
+ break;
+ }
+ r = fbdev->panel->run_test(fbdev->panel, test_num);
+ break;
+ }
+ case OMAPFB_CTRL_TEST:
+ {
+ int test_num;
+
+ if (get_user(test_num, (int __user *)arg)) {
+ r = -EFAULT;
+ break;
+ }
+ if (!fbdev->ctrl->run_test) {
+ r = -EINVAL;
+ break;
+ }
+ r = fbdev->ctrl->run_test(test_num);
+ break;
+ }
+ default:
+ r = -EINVAL;
+ }
+
+ return r;
+}
+
+static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+{
+ struct omapfb_plane_struct *plane = info->par;
+ struct omapfb_device *fbdev = plane->fbdev;
+ int r;
+
+ omapfb_rqueue_lock(fbdev);
+ r = fbdev->ctrl->mmap(info, vma);
+ omapfb_rqueue_unlock(fbdev);
+
+ return r;
+}
+
+/* Callback table for the frame buffer framework. Some of these pointers
+ * will be changed according to the current setting of fb_info->accel_flags.
+ */
+static struct fb_ops omapfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_open = omapfb_open,
+ .fb_release = omapfb_release,
+ .fb_setcolreg = omapfb_setcolreg,
+ .fb_setcmap = omapfb_setcmap,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = omapfb_blank,
+ .fb_ioctl = omapfb_ioctl,
+ .fb_check_var = omapfb_check_var,
+ .fb_set_par = omapfb_set_par,
+ .fb_rotate = omapfb_rotate,
+ .fb_pan_display = omapfb_pan_display,
+};
+
+/*
+ * ---------------------------------------------------------------------------
+ * Sysfs interface
+ * ---------------------------------------------------------------------------
+ */
+/* omapfbX sysfs entries */
+static ssize_t omapfb_show_caps_num(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+ int plane;
+ size_t size;
+ struct omapfb_caps caps;
+
+ plane = 0;
+ size = 0;
+ while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
+ omapfb_get_caps(fbdev, plane, &caps);
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ "plane#%d %#010x %#010x %#010x\n",
+ plane, caps.ctrl, caps.plane_color, caps.wnd_color);
+ plane++;
+ }
+ return size;
+}
+
+static ssize_t omapfb_show_caps_text(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+ int i;
+ struct omapfb_caps caps;
+ int plane;
+ size_t size;
+
+ plane = 0;
+ size = 0;
+ while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
+ omapfb_get_caps(fbdev, plane, &caps);
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ "plane#%d:\n", plane);
+ for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
+ size < PAGE_SIZE; i++) {
+ if (ctrl_caps[i].flag & caps.ctrl)
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ " %s\n", ctrl_caps[i].name);
+ }
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ " plane colors:\n");
+ for (i = 0; i < ARRAY_SIZE(color_caps) &&
+ size < PAGE_SIZE; i++) {
+ if (color_caps[i].flag & caps.plane_color)
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ " %s\n", color_caps[i].name);
+ }
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ " window colors:\n");
+ for (i = 0; i < ARRAY_SIZE(color_caps) &&
+ size < PAGE_SIZE; i++) {
+ if (color_caps[i].flag & caps.wnd_color)
+ size += snprintf(&buf[size], PAGE_SIZE - size,
+ " %s\n", color_caps[i].name);
+ }
+
+ plane++;
+ }
+ return size;
+}
+
+static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
+static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
+
+/* panel sysfs entries */
+static ssize_t omapfb_show_panel_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
+}
+
+static ssize_t omapfb_show_bklight_level(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+ int r;
+
+ if (fbdev->panel->get_bklight_level) {
+ r = snprintf(buf, PAGE_SIZE, "%d\n",
+ fbdev->panel->get_bklight_level(fbdev->panel));
+ } else
+ r = -ENODEV;
+ return r;
+}
+
+static ssize_t omapfb_store_bklight_level(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+ int r;
+
+ if (fbdev->panel->set_bklight_level) {
+ unsigned int level;
+
+ if (sscanf(buf, "%10d", &level) == 1) {
+ r = fbdev->panel->set_bklight_level(fbdev->panel, level);
+ } else
+ r = -EINVAL;
+ } else
+ r = -ENODEV;
+ return r ? r : size;
+}
+
+static ssize_t omapfb_show_bklight_max(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+ int r;
+
+ if (fbdev->panel->get_bklight_level) {
+ r = snprintf(buf, PAGE_SIZE, "%d\n",
+ fbdev->panel->get_bklight_max(fbdev->panel));
+ } else
+ r = -ENODEV;
+ return r;
+}
+
+static struct device_attribute dev_attr_panel_name =
+ __ATTR(name, 0444, omapfb_show_panel_name, NULL);
+static DEVICE_ATTR(backlight_level, 0664,
+ omapfb_show_bklight_level, omapfb_store_bklight_level);
+static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
+
+static struct attribute *panel_attrs[] = {
+ &dev_attr_panel_name.attr,
+ &dev_attr_backlight_level.attr,
+ &dev_attr_backlight_max.attr,
+ NULL,
+};
+
+static struct attribute_group panel_attr_grp = {
+ .name = "panel",
+ .attrs = panel_attrs,
+};
+
+/* ctrl sysfs entries */
+static ssize_t omapfb_show_ctrl_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
+}
+
+static struct device_attribute dev_attr_ctrl_name =
+ __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
+
+static struct attribute *ctrl_attrs[] = {
+ &dev_attr_ctrl_name.attr,
+ NULL,
+};
+
+static struct attribute_group ctrl_attr_grp = {
+ .name = "ctrl",
+ .attrs = ctrl_attrs,
+};
+
+static int omapfb_register_sysfs(struct omapfb_device *fbdev)
+{
+ int r;
+
+ if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
+ goto fail0;
+
+ if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
+ goto fail1;
+
+ if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
+ goto fail2;
+
+ if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
+ goto fail3;
+
+ return 0;
+fail3:
+ sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
+fail2:
+ device_remove_file(fbdev->dev, &dev_attr_caps_text);
+fail1:
+ device_remove_file(fbdev->dev, &dev_attr_caps_num);
+fail0:
+ dev_err(fbdev->dev, "unable to register sysfs interface\n");
+ return r;
+}
+
+static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
+{
+ sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
+ sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
+ device_remove_file(fbdev->dev, &dev_attr_caps_num);
+ device_remove_file(fbdev->dev, &dev_attr_caps_text);
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * LDM callbacks
+ * ---------------------------------------------------------------------------
+ */
+/* Initialize system fb_info object and set the default video mode.
+ * The frame buffer memory already allocated by lcddma_init
+ */
+static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
+{
+ struct fb_var_screeninfo *var = &info->var;
+ struct fb_fix_screeninfo *fix = &info->fix;
+ int r = 0;
+
+ info->fbops = &omapfb_ops;
+ info->flags = FBINFO_FLAG_DEFAULT;
+
+ strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
+
+ info->pseudo_palette = fbdev->pseudo_palette;
+
+ var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
+ var->xres = def_vxres;
+ var->yres = def_vyres;
+ var->xres_virtual = def_vxres;
+ var->yres_virtual = def_vyres;
+ var->rotate = def_rotate;
+ var->bits_per_pixel = fbdev->panel->bpp;
+
+ set_fb_var(info, var);
+ set_fb_fix(info);
+
+ r = fb_alloc_cmap(&info->cmap, 16, 0);
+ if (r != 0)
+ dev_err(fbdev->dev, "unable to allocate color map memory\n");
+
+ return r;
+}
+
+/* Release the fb_info object */
+static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
+{
+ fb_dealloc_cmap(&fbi->cmap);
+}
+
+static void planes_cleanup(struct omapfb_device *fbdev)
+{
+ int i;
+
+ for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
+ if (fbdev->fb_info[i] == NULL)
+ break;
+ fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
+ framebuffer_release(fbdev->fb_info[i]);
+ }
+}
+
+static int planes_init(struct omapfb_device *fbdev)
+{
+ struct fb_info *fbi;
+ int i;
+ int r;
+
+ for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
+ struct omapfb_plane_struct *plane;
+ fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
+ fbdev->dev);
+ if (fbi == NULL) {
+ dev_err(fbdev->dev,
+ "unable to allocate memory for plane info\n");
+ planes_cleanup(fbdev);
+ return -ENOMEM;
+ }
+ plane = fbi->par;
+ plane->idx = i;
+ plane->fbdev = fbdev;
+ plane->info.mirror = def_mirror;
+ fbdev->fb_info[i] = fbi;
+
+ if ((r = fbinfo_init(fbdev, fbi)) < 0) {
+ framebuffer_release(fbi);
+ planes_cleanup(fbdev);
+ return r;
+ }
+ plane->info.out_width = fbi->var.xres;
+ plane->info.out_height = fbi->var.yres;
+ }
+ return 0;
+}
+
+/* Free driver resources. Can be called to rollback an aborted initialization
+ * sequence.
+ */
+static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
+{
+ int i;
+
+ switch (state) {
+ case OMAPFB_ACTIVE:
+ for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
+ unregister_framebuffer(fbdev->fb_info[i]);
+ case 7:
+ omapfb_unregister_sysfs(fbdev);
+ case 6:
+ fbdev->panel->disable(fbdev->panel);
+ case 5:
+ omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
+ case 4:
+ planes_cleanup(fbdev);
+ case 3:
+ ctrl_cleanup(fbdev);
+ case 2:
+ fbdev->panel->cleanup(fbdev->panel);
+ case 1:
+ dev_set_drvdata(fbdev->dev, NULL);
+ kfree(fbdev);
+ case 0:
+ /* nothing to free */
+ break;
+ default:
+ BUG();
+ }
+}
+
+static int omapfb_find_ctrl(struct omapfb_device *fbdev)
+{
+ struct omapfb_platform_data *conf;
+ char name[17];
+ int i;
+
+ conf = fbdev->dev->platform_data;
+
+ fbdev->ctrl = NULL;
+
+ strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
+ name[sizeof(name) - 1] = '\0';
+
+ if (strcmp(name, "internal") == 0) {
+ fbdev->ctrl = fbdev->int_ctrl;
+ return 0;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
+ dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
+ if (strcmp(ctrls[i]->name, name) == 0) {
+ fbdev->ctrl = ctrls[i];
+ break;
+ }
+ }
+
+ if (fbdev->ctrl == NULL) {
+ dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
+ return -1;
+ }
+
+ return 0;
+}
+
+static void check_required_callbacks(struct omapfb_device *fbdev)
+{
+#define _C(x) (fbdev->ctrl->x != NULL)
+#define _P(x) (fbdev->panel->x != NULL)
+ BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
+ BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
+ _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
+ _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
+ _P(get_caps)));
+#undef _P
+#undef _C
+}
+
+/* Called by LDM binding to probe and attach a new device.
+ * Initialization sequence:
+ * 1. allocate system omapfb_device structure
+ * 2. select controller type according to platform configuration
+ * init LCD panel
+ * 3. init LCD controller and LCD DMA
+ * 4. init system fb_info structure for all planes
+ * 5. setup video mode for first plane and enable it
+ * 6. enable LCD panel
+ * 7. register sysfs attributes
+ * OMAPFB_ACTIVE: register system fb_info structure for all planes
+ */
+static int omapfb_do_probe(struct platform_device *pdev, struct lcd_panel *panel)
+{
+ struct omapfb_device *fbdev = NULL;
+ int init_state;
+ unsigned long phz, hhz, vhz;
+ unsigned long vram;
+ int i;
+ int r = 0;
+
+ init_state = 0;
+
+ if (pdev->num_resources != 0) {
+ dev_err(&pdev->dev, "probed for an unknown device\n");
+ r = -ENODEV;
+ goto cleanup;
+ }
+
+ if (pdev->dev.platform_data == NULL) {
+ dev_err(&pdev->dev, "missing platform data\n");
+ r = -ENOENT;
+ goto cleanup;
+ }
+
+ fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
+ if (fbdev == NULL) {
+ dev_err(&pdev->dev,
+ "unable to allocate memory for device info\n");
+ r = -ENOMEM;
+ goto cleanup;
+ }
+ init_state++;
+
+ fbdev->dev = &pdev->dev;
+ fbdev->panel = panel;
+ platform_set_drvdata(pdev, fbdev);
+
+ mutex_init(&fbdev->rqueue_mutex);
+
+#ifdef CONFIG_ARCH_OMAP1
+ fbdev->int_ctrl = &omap1_int_ctrl;
+#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
+ fbdev->ext_if = &omap1_ext_if;
+#endif
+#else /* OMAP2 */
+ fbdev->int_ctrl = &omap2_int_ctrl;
+#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
+ fbdev->ext_if = &omap2_ext_if;
+#endif
+#endif
+ if (omapfb_find_ctrl(fbdev) < 0) {
+ dev_err(fbdev->dev,
+ "LCD controller not found, board not supported\n");
+ r = -ENODEV;
+ goto cleanup;
+ }
+
+ r = fbdev->panel->init(fbdev->panel, fbdev);
+ if (r)
+ goto cleanup;
+
+ pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
+
+ def_vxres = def_vxres ? : fbdev->panel->x_res;
+ def_vyres = def_vyres ? : fbdev->panel->y_res;
+
+ init_state++;
+
+ r = ctrl_init(fbdev);
+ if (r)
+ goto cleanup;
+ if (fbdev->ctrl->mmap != NULL)
+ omapfb_ops.fb_mmap = omapfb_mmap;
+ init_state++;
+
+ check_required_callbacks(fbdev);
+
+ r = planes_init(fbdev);
+ if (r)
+ goto cleanup;
+ init_state++;
+
+#ifdef CONFIG_FB_OMAP_DMA_TUNE
+ /* Set DMA priority for EMIFF access to highest */
+ if (cpu_class_is_omap1())
+ omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
+#endif
+
+ r = ctrl_change_mode(fbdev->fb_info[0]);
+ if (r) {
+ dev_err(fbdev->dev, "mode setting failed\n");
+ goto cleanup;
+ }
+
+ /* GFX plane is enabled by default */
+ r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
+ if (r)
+ goto cleanup;
+
+ omapfb_set_update_mode(fbdev, manual_update ?
+ OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
+ init_state++;
+
+ r = fbdev->panel->enable(fbdev->panel);
+ if (r)
+ goto cleanup;
+ init_state++;
+
+ r = omapfb_register_sysfs(fbdev);
+ if (r)
+ goto cleanup;
+ init_state++;
+
+ vram = 0;
+ for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
+ r = register_framebuffer(fbdev->fb_info[i]);
+ if (r != 0) {
+ dev_err(fbdev->dev,
+ "registering framebuffer %d failed\n", i);
+ goto cleanup;
+ }
+ vram += fbdev->mem_desc.region[i].size;
+ }
+
+ fbdev->state = OMAPFB_ACTIVE;
+
+ panel = fbdev->panel;
+ phz = panel->pixel_clock * 1000;
+ hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
+ vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
+
+ omapfb_dev = fbdev;
+
+ pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
+ vram, fbdev->mem_desc.region_cnt);
+ pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
+ "vfreq %lu.%lu Hz\n",
+ phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
+
+ return 0;
+
+cleanup:
+ omapfb_free_resources(fbdev, init_state);
+
+ return r;
+}
+
+static int omapfb_probe(struct platform_device *pdev)
+{
+ BUG_ON(fbdev_pdev != NULL);
+
+ /* Delay actual initialization until the LCD is registered */
+ fbdev_pdev = pdev;
+ if (fbdev_panel != NULL)
+ omapfb_do_probe(fbdev_pdev, fbdev_panel);
+ return 0;
+}
+
+void omapfb_register_panel(struct lcd_panel *panel)
+{
+ BUG_ON(fbdev_panel != NULL);
+
+ fbdev_panel = panel;
+ if (fbdev_pdev != NULL)
+ omapfb_do_probe(fbdev_pdev, fbdev_panel);
+}
+
+/* Called when the device is being detached from the driver */
+static int omapfb_remove(struct platform_device *pdev)
+{
+ struct omapfb_device *fbdev = platform_get_drvdata(pdev);
+ enum omapfb_state saved_state = fbdev->state;
+
+ /* FIXME: wait till completion of pending events */
+
+ fbdev->state = OMAPFB_DISABLED;
+ omapfb_free_resources(fbdev, saved_state);
+
+ return 0;
+}
+
+/* PM suspend */
+static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ struct omapfb_device *fbdev = platform_get_drvdata(pdev);
+
+ omapfb_blank(VESA_POWERDOWN, fbdev->fb_info[0]);
+
+ return 0;
+}
+
+/* PM resume */
+static int omapfb_resume(struct platform_device *pdev)
+{
+ struct omapfb_device *fbdev = platform_get_drvdata(pdev);
+
+ omapfb_blank(VESA_NO_BLANKING, fbdev->fb_info[0]);
+ return 0;
+}
+
+static struct platform_driver omapfb_driver = {
+ .probe = omapfb_probe,
+ .remove = omapfb_remove,
+ .suspend = omapfb_suspend,
+ .resume = omapfb_resume,
+ .driver = {
+ .name = MODULE_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+#ifndef MODULE
+
+/* Process kernel command line parameters */
+static int __init omapfb_setup(char *options)
+{
+ char *this_opt = NULL;
+ int r = 0;
+
+ pr_debug("omapfb: options %s\n", options);
+
+ if (!options || !*options)
+ return 0;
+
+ while (!r && (this_opt = strsep(&options, ",")) != NULL) {
+ if (!strncmp(this_opt, "accel", 5))
+ def_accel = 1;
+ else if (!strncmp(this_opt, "vram:", 5)) {
+ char *suffix;
+ unsigned long vram;
+ vram = (simple_strtoul(this_opt + 5, &suffix, 0));
+ switch (suffix[0]) {
+ case '\0':
+ break;
+ case 'm':
+ case 'M':
+ vram *= 1024;
+ /* Fall through */
+ case 'k':
+ case 'K':
+ vram *= 1024;
+ break;
+ default:
+ pr_debug("omapfb: invalid vram suffix %c\n",
+ suffix[0]);
+ r = -1;
+ }
+ def_vram[def_vram_cnt++] = vram;
+ }
+ else if (!strncmp(this_opt, "vxres:", 6))
+ def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
+ else if (!strncmp(this_opt, "vyres:", 6))
+ def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
+ else if (!strncmp(this_opt, "rotate:", 7))
+ def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
+ else if (!strncmp(this_opt, "mirror:", 7))
+ def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
+ else if (!strncmp(this_opt, "manual_update", 13))
+ manual_update = 1;
+ else {
+ pr_debug("omapfb: invalid option\n");
+ r = -1;
+ }
+ }
+
+ return r;
+}
+
+#endif
+
+/* Register both the driver and the device */
+static int __init omapfb_init(void)
+{
+#ifndef MODULE
+ char *option;
+
+ if (fb_get_options("omapfb", &option))
+ return -ENODEV;
+ omapfb_setup(option);
+#endif
+ /* Register the driver with LDM */
+ if (platform_driver_register(&omapfb_driver)) {
+ pr_debug("failed to register omapfb driver\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void __exit omapfb_cleanup(void)
+{
+ platform_driver_unregister(&omapfb_driver);
+}
+
+module_param_named(accel, def_accel, uint, 0664);
+module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
+module_param_named(vxres, def_vxres, long, 0664);
+module_param_named(vyres, def_vyres, long, 0664);
+module_param_named(rotate, def_rotate, uint, 0664);
+module_param_named(mirror, def_mirror, uint, 0664);
+module_param_named(manual_update, manual_update, bool, 0664);
+
+module_init(omapfb_init);
+module_exit(omapfb_cleanup);
+
+MODULE_DESCRIPTION("TI OMAP framebuffer driver");
+MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * File: drivers/video/omap/omap2/rfbi.c
+ *
+ * OMAP2 Remote Frame Buffer Interface support
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Author: Juha Yrjölä <juha.yrjola@nokia.com>
+ * Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/omapfb.h>
+
+#include "dispc.h"
+
+/* To work around an RFBI transfer rate limitation */
+#define OMAP_RFBI_RATE_LIMIT 1
+
+#define RFBI_BASE 0x48050800
+#define RFBI_REVISION 0x0000
+#define RFBI_SYSCONFIG 0x0010
+#define RFBI_SYSSTATUS 0x0014
+#define RFBI_CONTROL 0x0040
+#define RFBI_PIXEL_CNT 0x0044
+#define RFBI_LINE_NUMBER 0x0048
+#define RFBI_CMD 0x004c
+#define RFBI_PARAM 0x0050
+#define RFBI_DATA 0x0054
+#define RFBI_READ 0x0058
+#define RFBI_STATUS 0x005c
+#define RFBI_CONFIG0 0x0060
+#define RFBI_ONOFF_TIME0 0x0064
+#define RFBI_CYCLE_TIME0 0x0068
+#define RFBI_DATA_CYCLE1_0 0x006c
+#define RFBI_DATA_CYCLE2_0 0x0070
+#define RFBI_DATA_CYCLE3_0 0x0074
+#define RFBI_VSYNC_WIDTH 0x0090
+#define RFBI_HSYNC_WIDTH 0x0094
+
+#define DISPC_BASE 0x48050400
+#define DISPC_CONTROL 0x0040
+
+static struct {
+ u32 base;
+ void (*lcdc_callback)(void *data);
+ void *lcdc_callback_data;
+ unsigned long l4_khz;
+ int bits_per_cycle;
+ struct omapfb_device *fbdev;
+ struct clk *dss_ick;
+ struct clk *dss1_fck;
+ unsigned tearsync_pin_cnt;
+ unsigned tearsync_mode;
+} rfbi;
+
+static inline void rfbi_write_reg(int idx, u32 val)
+{
+ __raw_writel(val, rfbi.base + idx);
+}
+
+static inline u32 rfbi_read_reg(int idx)
+{
+ return __raw_readl(rfbi.base + idx);
+}
+
+static int rfbi_get_clocks(void)
+{
+ if (IS_ERR((rfbi.dss_ick = clk_get(rfbi.fbdev->dev, "dss_ick")))) {
+ dev_err(rfbi.fbdev->dev, "can't get dss_ick");
+ return PTR_ERR(rfbi.dss_ick);
+ }
+
+ if (IS_ERR((rfbi.dss1_fck = clk_get(rfbi.fbdev->dev, "dss1_fck")))) {
+ dev_err(rfbi.fbdev->dev, "can't get dss1_fck");
+ clk_put(rfbi.dss_ick);
+ return PTR_ERR(rfbi.dss1_fck);
+ }
+
+ return 0;
+}
+
+static void rfbi_put_clocks(void)
+{
+ clk_put(rfbi.dss1_fck);
+ clk_put(rfbi.dss_ick);
+}
+
+static void rfbi_enable_clocks(int enable)
+{
+ if (enable) {
+ clk_enable(rfbi.dss_ick);
+ clk_enable(rfbi.dss1_fck);
+ } else {
+ clk_disable(rfbi.dss1_fck);
+ clk_disable(rfbi.dss_ick);
+ }
+}
+
+
+#ifdef VERBOSE
+static void rfbi_print_timings(void)
+{
+ u32 l;
+ u32 time;
+
+ l = rfbi_read_reg(RFBI_CONFIG0);
+ time = 1000000000 / rfbi.l4_khz;
+ if (l & (1 << 4))
+ time *= 2;
+
+ dev_dbg(rfbi.fbdev->dev, "Tick time %u ps\n", time);
+ l = rfbi_read_reg(RFBI_ONOFF_TIME0);
+ dev_dbg(rfbi.fbdev->dev,
+ "CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, "
+ "REONTIME %d, REOFFTIME %d\n",
+ l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f,
+ (l >> 20) & 0x0f, (l >> 24) & 0x3f);
+
+ l = rfbi_read_reg(RFBI_CYCLE_TIME0);
+ dev_dbg(rfbi.fbdev->dev,
+ "WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, "
+ "ACCESSTIME %d\n",
+ (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f,
+ (l >> 22) & 0x3f);
+}
+#else
+static void rfbi_print_timings(void) {}
+#endif
+
+static void rfbi_set_timings(const struct extif_timings *t)
+{
+ u32 l;
+
+ BUG_ON(!t->converted);
+
+ rfbi_enable_clocks(1);
+ rfbi_write_reg(RFBI_ONOFF_TIME0, t->tim[0]);
+ rfbi_write_reg(RFBI_CYCLE_TIME0, t->tim[1]);
+
+ l = rfbi_read_reg(RFBI_CONFIG0);
+ l &= ~(1 << 4);
+ l |= (t->tim[2] ? 1 : 0) << 4;
+ rfbi_write_reg(RFBI_CONFIG0, l);
+
+ rfbi_print_timings();
+ rfbi_enable_clocks(0);
+}
+
+static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div)
+{
+ *clk_period = 1000000000 / rfbi.l4_khz;
+ *max_clk_div = 2;
+}
+
+static int ps_to_rfbi_ticks(int time, int div)
+{
+ unsigned long tick_ps;
+ int ret;
+
+ /* Calculate in picosecs to yield more exact results */
+ tick_ps = 1000000000 / (rfbi.l4_khz) * div;
+
+ ret = (time + tick_ps - 1) / tick_ps;
+
+ return ret;
+}
+
+#ifdef OMAP_RFBI_RATE_LIMIT
+static unsigned long rfbi_get_max_tx_rate(void)
+{
+ unsigned long l4_rate, dss1_rate;
+ int min_l4_ticks = 0;
+ int i;
+
+ /* According to TI this can't be calculated so make the
+ * adjustments for a couple of known frequencies and warn for
+ * others.
+ */
+ static const struct {
+ unsigned long l4_clk; /* HZ */
+ unsigned long dss1_clk; /* HZ */
+ unsigned long min_l4_ticks;
+ } ftab[] = {
+ { 55, 132, 7, }, /* 7.86 MPix/s */
+ { 110, 110, 12, }, /* 9.16 MPix/s */
+ { 110, 132, 10, }, /* 11 Mpix/s */
+ { 120, 120, 10, }, /* 12 Mpix/s */
+ { 133, 133, 10, }, /* 13.3 Mpix/s */
+ };
+
+ l4_rate = rfbi.l4_khz / 1000;
+ dss1_rate = clk_get_rate(rfbi.dss1_fck) / 1000000;
+
+ for (i = 0; i < ARRAY_SIZE(ftab); i++) {
+ /* Use a window instead of an exact match, to account
+ * for different DPLL multiplier / divider pairs.
+ */
+ if (abs(ftab[i].l4_clk - l4_rate) < 3 &&
+ abs(ftab[i].dss1_clk - dss1_rate) < 3) {
+ min_l4_ticks = ftab[i].min_l4_ticks;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(ftab)) {
+ /* Can't be sure, return anyway the maximum not
+ * rate-limited. This might cause a problem only for the
+ * tearing synchronisation.
+ */
+ dev_err(rfbi.fbdev->dev,
+ "can't determine maximum RFBI transfer rate\n");
+ return rfbi.l4_khz * 1000;
+ }
+ return rfbi.l4_khz * 1000 / min_l4_ticks;
+}
+#else
+static int rfbi_get_max_tx_rate(void)
+{
+ return rfbi.l4_khz * 1000;
+}
+#endif
+
+
+static int rfbi_convert_timings(struct extif_timings *t)
+{
+ u32 l;
+ int reon, reoff, weon, weoff, cson, csoff, cs_pulse;
+ int actim, recyc, wecyc;
+ int div = t->clk_div;
+
+ if (div <= 0 || div > 2)
+ return -1;
+
+ /* Make sure that after conversion it still holds that:
+ * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff,
+ * csoff > cson, csoff >= max(weoff, reoff), actim > reon
+ */
+ weon = ps_to_rfbi_ticks(t->we_on_time, div);
+ weoff = ps_to_rfbi_ticks(t->we_off_time, div);
+ if (weoff <= weon)
+ weoff = weon + 1;
+ if (weon > 0x0f)
+ return -1;
+ if (weoff > 0x3f)
+ return -1;
+
+ reon = ps_to_rfbi_ticks(t->re_on_time, div);
+ reoff = ps_to_rfbi_ticks(t->re_off_time, div);
+ if (reoff <= reon)
+ reoff = reon + 1;
+ if (reon > 0x0f)
+ return -1;
+ if (reoff > 0x3f)
+ return -1;
+
+ cson = ps_to_rfbi_ticks(t->cs_on_time, div);
+ csoff = ps_to_rfbi_ticks(t->cs_off_time, div);
+ if (csoff <= cson)
+ csoff = cson + 1;
+ if (csoff < max(weoff, reoff))
+ csoff = max(weoff, reoff);
+ if (cson > 0x0f)
+ return -1;
+ if (csoff > 0x3f)
+ return -1;
+
+ l = cson;
+ l |= csoff << 4;
+ l |= weon << 10;
+ l |= weoff << 14;
+ l |= reon << 20;
+ l |= reoff << 24;
+
+ t->tim[0] = l;
+
+ actim = ps_to_rfbi_ticks(t->access_time, div);
+ if (actim <= reon)
+ actim = reon + 1;
+ if (actim > 0x3f)
+ return -1;
+
+ wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div);
+ if (wecyc < weoff)
+ wecyc = weoff;
+ if (wecyc > 0x3f)
+ return -1;
+
+ recyc = ps_to_rfbi_ticks(t->re_cycle_time, div);
+ if (recyc < reoff)
+ recyc = reoff;
+ if (recyc > 0x3f)
+ return -1;
+
+ cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div);
+ if (cs_pulse > 0x3f)
+ return -1;
+
+ l = wecyc;
+ l |= recyc << 6;
+ l |= cs_pulse << 12;
+ l |= actim << 22;
+
+ t->tim[1] = l;
+
+ t->tim[2] = div - 1;
+
+ t->converted = 1;
+
+ return 0;
+}
+
+static int rfbi_setup_tearsync(unsigned pin_cnt,
+ unsigned hs_pulse_time, unsigned vs_pulse_time,
+ int hs_pol_inv, int vs_pol_inv, int extif_div)
+{
+ int hs, vs;
+ int min;
+ u32 l;
+
+ if (pin_cnt != 1 && pin_cnt != 2)
+ return -EINVAL;
+
+ hs = ps_to_rfbi_ticks(hs_pulse_time, 1);
+ vs = ps_to_rfbi_ticks(vs_pulse_time, 1);
+ if (hs < 2)
+ return -EDOM;
+ if (pin_cnt == 2)
+ min = 2;
+ else
+ min = 4;
+ if (vs < min)
+ return -EDOM;
+ if (vs == hs)
+ return -EINVAL;
+ rfbi.tearsync_pin_cnt = pin_cnt;
+ dev_dbg(rfbi.fbdev->dev,
+ "setup_tearsync: pins %d hs %d vs %d hs_inv %d vs_inv %d\n",
+ pin_cnt, hs, vs, hs_pol_inv, vs_pol_inv);
+
+ rfbi_enable_clocks(1);
+ rfbi_write_reg(RFBI_HSYNC_WIDTH, hs);
+ rfbi_write_reg(RFBI_VSYNC_WIDTH, vs);
+
+ l = rfbi_read_reg(RFBI_CONFIG0);
+ if (hs_pol_inv)
+ l &= ~(1 << 21);
+ else
+ l |= 1 << 21;
+ if (vs_pol_inv)
+ l &= ~(1 << 20);
+ else
+ l |= 1 << 20;
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+
+static int rfbi_enable_tearsync(int enable, unsigned line)
+{
+ u32 l;
+
+ dev_dbg(rfbi.fbdev->dev, "tearsync %d line %d mode %d\n",
+ enable, line, rfbi.tearsync_mode);
+ if (line > (1 << 11) - 1)
+ return -EINVAL;
+
+ rfbi_enable_clocks(1);
+ l = rfbi_read_reg(RFBI_CONFIG0);
+ l &= ~(0x3 << 2);
+ if (enable) {
+ rfbi.tearsync_mode = rfbi.tearsync_pin_cnt;
+ l |= rfbi.tearsync_mode << 2;
+ } else
+ rfbi.tearsync_mode = 0;
+ rfbi_write_reg(RFBI_CONFIG0, l);
+ rfbi_write_reg(RFBI_LINE_NUMBER, line);
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+
+static void rfbi_write_command(const void *buf, unsigned int len)
+{
+ rfbi_enable_clocks(1);
+ if (rfbi.bits_per_cycle == 16) {
+ const u16 *w = buf;
+ BUG_ON(len & 1);
+ for (; len; len -= 2)
+ rfbi_write_reg(RFBI_CMD, *w++);
+ } else {
+ const u8 *b = buf;
+ BUG_ON(rfbi.bits_per_cycle != 8);
+ for (; len; len--)
+ rfbi_write_reg(RFBI_CMD, *b++);
+ }
+ rfbi_enable_clocks(0);
+}
+
+static void rfbi_read_data(void *buf, unsigned int len)
+{
+ rfbi_enable_clocks(1);
+ if (rfbi.bits_per_cycle == 16) {
+ u16 *w = buf;
+ BUG_ON(len & ~1);
+ for (; len; len -= 2) {
+ rfbi_write_reg(RFBI_READ, 0);
+ *w++ = rfbi_read_reg(RFBI_READ);
+ }
+ } else {
+ u8 *b = buf;
+ BUG_ON(rfbi.bits_per_cycle != 8);
+ for (; len; len--) {
+ rfbi_write_reg(RFBI_READ, 0);
+ *b++ = rfbi_read_reg(RFBI_READ);
+ }
+ }
+ rfbi_enable_clocks(0);
+}
+
+static void rfbi_write_data(const void *buf, unsigned int len)
+{
+ rfbi_enable_clocks(1);
+ if (rfbi.bits_per_cycle == 16) {
+ const u16 *w = buf;
+ BUG_ON(len & 1);
+ for (; len; len -= 2)
+ rfbi_write_reg(RFBI_PARAM, *w++);
+ } else {
+ const u8 *b = buf;
+ BUG_ON(rfbi.bits_per_cycle != 8);
+ for (; len; len--)
+ rfbi_write_reg(RFBI_PARAM, *b++);
+ }
+ rfbi_enable_clocks(0);
+}
+
+static void rfbi_transfer_area(int width, int height,
+ void (callback)(void * data), void *data)
+{
+ u32 w;
+
+ BUG_ON(callback == NULL);
+
+ rfbi_enable_clocks(1);
+ omap_dispc_set_lcd_size(width, height);
+
+ rfbi.lcdc_callback = callback;
+ rfbi.lcdc_callback_data = data;
+
+ rfbi_write_reg(RFBI_PIXEL_CNT, width * height);
+
+ w = rfbi_read_reg(RFBI_CONTROL);
+ w |= 1; /* enable */
+ if (!rfbi.tearsync_mode)
+ w |= 1 << 4; /* internal trigger, reset by HW */
+ rfbi_write_reg(RFBI_CONTROL, w);
+
+ omap_dispc_enable_lcd_out(1);
+}
+
+static inline void _stop_transfer(void)
+{
+ u32 w;
+
+ w = rfbi_read_reg(RFBI_CONTROL);
+ rfbi_write_reg(RFBI_CONTROL, w & ~(1 << 0));
+ rfbi_enable_clocks(0);
+}
+
+static void rfbi_dma_callback(void *data)
+{
+ _stop_transfer();
+ rfbi.lcdc_callback(rfbi.lcdc_callback_data);
+}
+
+static void rfbi_set_bits_per_cycle(int bpc)
+{
+ u32 l;
+
+ rfbi_enable_clocks(1);
+ l = rfbi_read_reg(RFBI_CONFIG0);
+ l &= ~(0x03 << 0);
+ switch (bpc)
+ {
+ case 8:
+ break;
+ case 16:
+ l |= 3;
+ break;
+ default:
+ BUG();
+ }
+ rfbi_write_reg(RFBI_CONFIG0, l);
+ rfbi.bits_per_cycle = bpc;
+ rfbi_enable_clocks(0);
+}
+
+static int rfbi_init(struct omapfb_device *fbdev)
+{
+ u32 l;
+ int r;
+
+ rfbi.fbdev = fbdev;
+ rfbi.base = io_p2v(RFBI_BASE);
+
+ if ((r = rfbi_get_clocks()) < 0)
+ return r;
+ rfbi_enable_clocks(1);
+
+ rfbi.l4_khz = clk_get_rate(rfbi.dss_ick) / 1000;
+
+ /* Reset */
+ rfbi_write_reg(RFBI_SYSCONFIG, 1 << 1);
+ while (!(rfbi_read_reg(RFBI_SYSSTATUS) & (1 << 0)));
+
+ l = rfbi_read_reg(RFBI_SYSCONFIG);
+ /* Enable autoidle and smart-idle */
+ l |= (1 << 0) | (2 << 3);
+ rfbi_write_reg(RFBI_SYSCONFIG, l);
+
+ /* 16-bit interface, ITE trigger mode, 16-bit data */
+ l = (0x03 << 0) | (0x00 << 2) | (0x01 << 5) | (0x02 << 7);
+ l |= (0 << 9) | (1 << 20) | (1 << 21);
+ rfbi_write_reg(RFBI_CONFIG0, l);
+
+ rfbi_write_reg(RFBI_DATA_CYCLE1_0, 0x00000010);
+
+ l = rfbi_read_reg(RFBI_CONTROL);
+ /* Select CS0, clear bypass mode */
+ l = (0x01 << 2);
+ rfbi_write_reg(RFBI_CONTROL, l);
+
+ if ((r = omap_dispc_request_irq(rfbi_dma_callback, NULL)) < 0) {
+ dev_err(fbdev->dev, "can't get DISPC irq\n");
+ rfbi_enable_clocks(0);
+ return r;
+ }
+
+ l = rfbi_read_reg(RFBI_REVISION);
+ pr_info("omapfb: RFBI version %d.%d initialized\n",
+ (l >> 4) & 0x0f, l & 0x0f);
+
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+
+static void rfbi_cleanup(void)
+{
+ omap_dispc_free_irq();
+ rfbi_put_clocks();
+}
+
+const struct lcd_ctrl_extif omap2_ext_if = {
+ .init = rfbi_init,
+ .cleanup = rfbi_cleanup,
+ .get_clk_info = rfbi_get_clk_info,
+ .get_max_tx_rate = rfbi_get_max_tx_rate,
+ .set_bits_per_cycle = rfbi_set_bits_per_cycle,
+ .convert_timings = rfbi_convert_timings,
+ .set_timings = rfbi_set_timings,
+ .write_command = rfbi_write_command,
+ .read_data = rfbi_read_data,
+ .write_data = rfbi_write_data,
+ .transfer_area = rfbi_transfer_area,
+ .setup_tearsync = rfbi_setup_tearsync,
+ .enable_tearsync = rfbi_enable_tearsync,
+
+ .max_transmit_size = (u32)~0,
+};
+
--- /dev/null
+/*
+ * File: drivers/video/omap/omap1/sossi.c
+ *
+ * OMAP1 Special OptimiSed Screen Interface support
+ *
+ * Copyright (C) 2004-2005 Nokia Corporation
+ * Author: Juha Yrjölä <juha.yrjola@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/clk.h>
+#include <linux/irq.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/dma.h>
+#include <asm/arch/omapfb.h>
+
+#include "lcdc.h"
+
+#define MODULE_NAME "omapfb-sossi"
+
+#define OMAP_SOSSI_BASE 0xfffbac00
+#define SOSSI_ID_REG 0x00
+#define SOSSI_INIT1_REG 0x04
+#define SOSSI_INIT2_REG 0x08
+#define SOSSI_INIT3_REG 0x0c
+#define SOSSI_FIFO_REG 0x10
+#define SOSSI_REOTABLE_REG 0x14
+#define SOSSI_TEARING_REG 0x18
+#define SOSSI_INIT1B_REG 0x1c
+#define SOSSI_FIFOB_REG 0x20
+
+#define DMA_GSCR 0xfffedc04
+#define DMA_LCD_CCR 0xfffee3c2
+#define DMA_LCD_CTRL 0xfffee3c4
+#define DMA_LCD_LCH_CTRL 0xfffee3ea
+
+#define CONF_SOSSI_RESET_R (1 << 23)
+
+#define RD_ACCESS 0
+#define WR_ACCESS 1
+
+#define SOSSI_MAX_XMIT_BYTES (512 * 1024)
+
+static struct {
+ void __iomem *base;
+ struct clk *fck;
+ unsigned long fck_hz;
+ spinlock_t lock;
+ int bus_pick_count;
+ int bus_pick_width;
+ int tearsync_mode;
+ int tearsync_line;
+ void (*lcdc_callback)(void *data);
+ void *lcdc_callback_data;
+ int vsync_dma_pending;
+ /* timing for read and write access */
+ int clk_div;
+ u8 clk_tw0[2];
+ u8 clk_tw1[2];
+ /* if last_access is the same as current we don't have to change
+ * the timings
+ */
+ int last_access;
+
+ struct omapfb_device *fbdev;
+} sossi;
+
+static inline u32 sossi_read_reg(int reg)
+{
+ return readl(sossi.base + reg);
+}
+
+static inline u16 sossi_read_reg16(int reg)
+{
+ return readw(sossi.base + reg);
+}
+
+static inline u8 sossi_read_reg8(int reg)
+{
+ return readb(sossi.base + reg);
+}
+
+static inline void sossi_write_reg(int reg, u32 value)
+{
+ writel(value, sossi.base + reg);
+}
+
+static inline void sossi_write_reg16(int reg, u16 value)
+{
+ writew(value, sossi.base + reg);
+}
+
+static inline void sossi_write_reg8(int reg, u8 value)
+{
+ writeb(value, sossi.base + reg);
+}
+
+static void sossi_set_bits(int reg, u32 bits)
+{
+ sossi_write_reg(reg, sossi_read_reg(reg) | bits);
+}
+
+static void sossi_clear_bits(int reg, u32 bits)
+{
+ sossi_write_reg(reg, sossi_read_reg(reg) & ~bits);
+}
+
+#define HZ_TO_PS(x) (1000000000 / (x / 1000))
+
+static u32 ps_to_sossi_ticks(u32 ps, int div)
+{
+ u32 clk_period = HZ_TO_PS(sossi.fck_hz) * div;
+ return (clk_period + ps - 1) / clk_period;
+}
+
+static int calc_rd_timings(struct extif_timings *t)
+{
+ u32 tw0, tw1;
+ int reon, reoff, recyc, actim;
+ int div = t->clk_div;
+
+ /* Make sure that after conversion it still holds that:
+ * reoff > reon, recyc >= reoff, actim > reon
+ */
+ reon = ps_to_sossi_ticks(t->re_on_time, div);
+ /* reon will be exactly one sossi tick */
+ if (reon > 1)
+ return -1;
+
+ reoff = ps_to_sossi_ticks(t->re_off_time, div);
+
+ if (reoff <= reon)
+ reoff = reon + 1;
+
+ tw0 = reoff - reon;
+ if (tw0 > 0x10)
+ return -1;
+
+ recyc = ps_to_sossi_ticks(t->re_cycle_time, div);
+ if (recyc <= reoff)
+ recyc = reoff + 1;
+
+ tw1 = recyc - tw0;
+ /* values less then 3 result in the SOSSI block resetting itself */
+ if (tw1 < 3)
+ tw1 = 3;
+ if (tw1 > 0x40)
+ return -1;
+
+ actim = ps_to_sossi_ticks(t->access_time, div);
+ if (actim < reoff)
+ actim++;
+ /* access time (data hold time) will be exactly one sossi
+ * tick
+ */
+ if (actim - reoff > 1)
+ return -1;
+
+ t->tim[0] = tw0 - 1;
+ t->tim[1] = tw1 - 1;
+
+ return 0;
+}
+
+static int calc_wr_timings(struct extif_timings *t)
+{
+ u32 tw0, tw1;
+ int weon, weoff, wecyc;
+ int div = t->clk_div;
+
+ /* Make sure that after conversion it still holds that:
+ * weoff > weon, wecyc >= weoff
+ */
+ weon = ps_to_sossi_ticks(t->we_on_time, div);
+ /* weon will be exactly one sossi tick */
+ if (weon > 1)
+ return -1;
+
+ weoff = ps_to_sossi_ticks(t->we_off_time, div);
+ if (weoff <= weon)
+ weoff = weon + 1;
+ tw0 = weoff - weon;
+ if (tw0 > 0x10)
+ return -1;
+
+ wecyc = ps_to_sossi_ticks(t->we_cycle_time, div);
+ if (wecyc <= weoff)
+ wecyc = weoff + 1;
+
+ tw1 = wecyc - tw0;
+ /* values less then 3 result in the SOSSI block resetting itself */
+ if (tw1 < 3)
+ tw1 = 3;
+ if (tw1 > 0x40)
+ return -1;
+
+ t->tim[2] = tw0 - 1;
+ t->tim[3] = tw1 - 1;
+
+ return 0;
+}
+
+static void _set_timing(int div, int tw0, int tw1)
+{
+ u32 l;
+
+#ifdef VERBOSE
+ dev_dbg(sossi.fbdev->dev, "Using TW0 = %d, TW1 = %d, div = %d\n",
+ tw0 + 1, tw1 + 1, div);
+#endif
+
+ clk_set_rate(sossi.fck, sossi.fck_hz / div);
+ clk_enable(sossi.fck);
+ l = sossi_read_reg(SOSSI_INIT1_REG);
+ l &= ~((0x0f << 20) | (0x3f << 24));
+ l |= (tw0 << 20) | (tw1 << 24);
+ sossi_write_reg(SOSSI_INIT1_REG, l);
+ clk_disable(sossi.fck);
+}
+
+static void _set_bits_per_cycle(int bus_pick_count, int bus_pick_width)
+{
+ u32 l;
+
+ l = sossi_read_reg(SOSSI_INIT3_REG);
+ l &= ~0x3ff;
+ l |= ((bus_pick_count - 1) << 5) | ((bus_pick_width - 1) & 0x1f);
+ sossi_write_reg(SOSSI_INIT3_REG, l);
+}
+
+static void _set_tearsync_mode(int mode, unsigned line)
+{
+ u32 l;
+
+ l = sossi_read_reg(SOSSI_TEARING_REG);
+ l &= ~(((1 << 11) - 1) << 15);
+ l |= line << 15;
+ l &= ~(0x3 << 26);
+ l |= mode << 26;
+ sossi_write_reg(SOSSI_TEARING_REG, l);
+ if (mode)
+ sossi_set_bits(SOSSI_INIT2_REG, 1 << 6); /* TE logic */
+ else
+ sossi_clear_bits(SOSSI_INIT2_REG, 1 << 6);
+}
+
+static inline void set_timing(int access)
+{
+ if (access != sossi.last_access) {
+ sossi.last_access = access;
+ _set_timing(sossi.clk_div,
+ sossi.clk_tw0[access], sossi.clk_tw1[access]);
+ }
+}
+
+static void sossi_start_transfer(void)
+{
+ /* WE */
+ sossi_clear_bits(SOSSI_INIT2_REG, 1 << 4);
+ /* CS active low */
+ sossi_clear_bits(SOSSI_INIT1_REG, 1 << 30);
+}
+
+static void sossi_stop_transfer(void)
+{
+ /* WE */
+ sossi_set_bits(SOSSI_INIT2_REG, 1 << 4);
+ /* CS active low */
+ sossi_set_bits(SOSSI_INIT1_REG, 1 << 30);
+}
+
+static void wait_end_of_write(void)
+{
+ /* Before reading we must check if some writings are going on */
+ while (!(sossi_read_reg(SOSSI_INIT2_REG) & (1 << 3)));
+}
+
+static void send_data(const void *data, unsigned int len)
+{
+ while (len >= 4) {
+ sossi_write_reg(SOSSI_FIFO_REG, *(const u32 *) data);
+ len -= 4;
+ data += 4;
+ }
+ while (len >= 2) {
+ sossi_write_reg16(SOSSI_FIFO_REG, *(const u16 *) data);
+ len -= 2;
+ data += 2;
+ }
+ while (len) {
+ sossi_write_reg8(SOSSI_FIFO_REG, *(const u8 *) data);
+ len--;
+ data++;
+ }
+}
+
+static void set_cycles(unsigned int len)
+{
+ unsigned long nr_cycles = len / (sossi.bus_pick_width / 8);
+
+ BUG_ON((nr_cycles - 1) & ~0x3ffff);
+
+ sossi_clear_bits(SOSSI_INIT1_REG, 0x3ffff);
+ sossi_set_bits(SOSSI_INIT1_REG, (nr_cycles - 1) & 0x3ffff);
+}
+
+static int sossi_convert_timings(struct extif_timings *t)
+{
+ int r = 0;
+ int div = t->clk_div;
+
+ t->converted = 0;
+
+ if (div <= 0 || div > 8)
+ return -1;
+
+ /* no CS on SOSSI, so ignore cson, csoff, cs_pulsewidth */
+ if ((r = calc_rd_timings(t)) < 0)
+ return r;
+
+ if ((r = calc_wr_timings(t)) < 0)
+ return r;
+
+ t->tim[4] = div;
+
+ t->converted = 1;
+
+ return 0;
+}
+
+static void sossi_set_timings(const struct extif_timings *t)
+{
+ BUG_ON(!t->converted);
+
+ sossi.clk_tw0[RD_ACCESS] = t->tim[0];
+ sossi.clk_tw1[RD_ACCESS] = t->tim[1];
+
+ sossi.clk_tw0[WR_ACCESS] = t->tim[2];
+ sossi.clk_tw1[WR_ACCESS] = t->tim[3];
+
+ sossi.clk_div = t->tim[4];
+}
+
+static void sossi_get_clk_info(u32 *clk_period, u32 *max_clk_div)
+{
+ *clk_period = HZ_TO_PS(sossi.fck_hz);
+ *max_clk_div = 8;
+}
+
+static void sossi_set_bits_per_cycle(int bpc)
+{
+ int bus_pick_count, bus_pick_width;
+
+ /* We set explicitly the the bus_pick_count as well, although
+ * with remapping/reordering disabled it will be calculated by HW
+ * as (32 / bus_pick_width).
+ */
+ switch (bpc) {
+ case 8:
+ bus_pick_count = 4;
+ bus_pick_width = 8;
+ break;
+ case 16:
+ bus_pick_count = 2;
+ bus_pick_width = 16;
+ break;
+ default:
+ BUG();
+ return;
+ }
+ sossi.bus_pick_width = bus_pick_width;
+ sossi.bus_pick_count = bus_pick_count;
+}
+
+static int sossi_setup_tearsync(unsigned pin_cnt,
+ unsigned hs_pulse_time, unsigned vs_pulse_time,
+ int hs_pol_inv, int vs_pol_inv, int div)
+{
+ int hs, vs;
+ u32 l;
+
+ if (pin_cnt != 1 || div < 1 || div > 8)
+ return -EINVAL;
+
+ hs = ps_to_sossi_ticks(hs_pulse_time, div);
+ vs = ps_to_sossi_ticks(vs_pulse_time, div);
+ if (vs < 8 || vs <= hs || vs >= (1 << 12))
+ return -EDOM;
+ vs /= 8;
+ vs--;
+ if (hs > 8)
+ hs = 8;
+ if (hs)
+ hs--;
+
+ dev_dbg(sossi.fbdev->dev,
+ "setup_tearsync: hs %d vs %d hs_inv %d vs_inv %d\n",
+ hs, vs, hs_pol_inv, vs_pol_inv);
+
+ clk_enable(sossi.fck);
+ l = sossi_read_reg(SOSSI_TEARING_REG);
+ l &= ~((1 << 15) - 1);
+ l |= vs << 3;
+ l |= hs;
+ if (hs_pol_inv)
+ l |= 1 << 29;
+ else
+ l &= ~(1 << 29);
+ if (vs_pol_inv)
+ l |= 1 << 28;
+ else
+ l &= ~(1 << 28);
+ sossi_write_reg(SOSSI_TEARING_REG, l);
+ clk_disable(sossi.fck);
+
+ return 0;
+}
+
+static int sossi_enable_tearsync(int enable, unsigned line)
+{
+ int mode;
+
+ dev_dbg(sossi.fbdev->dev, "tearsync %d line %d\n", enable, line);
+ if (line >= 1 << 11)
+ return -EINVAL;
+ if (enable) {
+ if (line)
+ mode = 2; /* HS or VS */
+ else
+ mode = 3; /* VS only */
+ } else
+ mode = 0;
+ sossi.tearsync_line = line;
+ sossi.tearsync_mode = mode;
+
+ return 0;
+}
+
+static void sossi_write_command(const void *data, unsigned int len)
+{
+ clk_enable(sossi.fck);
+ set_timing(WR_ACCESS);
+ _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width);
+ /* CMD#/DATA */
+ sossi_clear_bits(SOSSI_INIT1_REG, 1 << 18);
+ set_cycles(len);
+ sossi_start_transfer();
+ send_data(data, len);
+ sossi_stop_transfer();
+ wait_end_of_write();
+ clk_disable(sossi.fck);
+}
+
+static void sossi_write_data(const void *data, unsigned int len)
+{
+ clk_enable(sossi.fck);
+ set_timing(WR_ACCESS);
+ _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width);
+ /* CMD#/DATA */
+ sossi_set_bits(SOSSI_INIT1_REG, 1 << 18);
+ set_cycles(len);
+ sossi_start_transfer();
+ send_data(data, len);
+ sossi_stop_transfer();
+ wait_end_of_write();
+ clk_disable(sossi.fck);
+}
+
+static void sossi_transfer_area(int width, int height,
+ void (callback)(void *data), void *data)
+{
+ BUG_ON(callback == NULL);
+
+ sossi.lcdc_callback = callback;
+ sossi.lcdc_callback_data = data;
+
+ clk_enable(sossi.fck);
+ set_timing(WR_ACCESS);
+ _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width);
+ _set_tearsync_mode(sossi.tearsync_mode, sossi.tearsync_line);
+ /* CMD#/DATA */
+ sossi_set_bits(SOSSI_INIT1_REG, 1 << 18);
+ set_cycles(width * height * sossi.bus_pick_width / 8);
+
+ sossi_start_transfer();
+ if (sossi.tearsync_mode) {
+ /* Wait for the sync signal and start the transfer only
+ * then. We can't seem to be able to use HW sync DMA for
+ * this since LCD DMA shows huge latencies, as if it
+ * would ignore some of the DMA requests from SoSSI.
+ */
+ unsigned long flags;
+
+ spin_lock_irqsave(&sossi.lock, flags);
+ sossi.vsync_dma_pending++;
+ spin_unlock_irqrestore(&sossi.lock, flags);
+ } else
+ /* Just start the transfer right away. */
+ omap_enable_lcd_dma();
+}
+
+static void sossi_dma_callback(void *data)
+{
+ omap_stop_lcd_dma();
+ sossi_stop_transfer();
+ clk_disable(sossi.fck);
+ sossi.lcdc_callback(sossi.lcdc_callback_data);
+}
+
+static void sossi_read_data(void *data, unsigned int len)
+{
+ clk_enable(sossi.fck);
+ set_timing(RD_ACCESS);
+ _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width);
+ /* CMD#/DATA */
+ sossi_set_bits(SOSSI_INIT1_REG, 1 << 18);
+ set_cycles(len);
+ sossi_start_transfer();
+ while (len >= 4) {
+ *(u32 *) data = sossi_read_reg(SOSSI_FIFO_REG);
+ len -= 4;
+ data += 4;
+ }
+ while (len >= 2) {
+ *(u16 *) data = sossi_read_reg16(SOSSI_FIFO_REG);
+ len -= 2;
+ data += 2;
+ }
+ while (len) {
+ *(u8 *) data = sossi_read_reg8(SOSSI_FIFO_REG);
+ len--;
+ data++;
+ }
+ sossi_stop_transfer();
+ clk_disable(sossi.fck);
+}
+
+static irqreturn_t sossi_match_irq(int irq, void *data)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&sossi.lock, flags);
+ if (sossi.vsync_dma_pending) {
+ sossi.vsync_dma_pending--;
+ omap_enable_lcd_dma();
+ }
+ spin_unlock_irqrestore(&sossi.lock, flags);
+ return IRQ_HANDLED;
+}
+
+static int sossi_init(struct omapfb_device *fbdev)
+{
+ u32 l, k;
+ struct clk *fck;
+ struct clk *dpll1out_ck;
+ int r;
+
+ sossi.base = (void __iomem *)IO_ADDRESS(OMAP_SOSSI_BASE);
+ sossi.fbdev = fbdev;
+ spin_lock_init(&sossi.lock);
+
+ dpll1out_ck = clk_get(fbdev->dev, "ck_dpll1out");
+ if (IS_ERR(dpll1out_ck)) {
+ dev_err(fbdev->dev, "can't get DPLL1OUT clock\n");
+ return PTR_ERR(dpll1out_ck);
+ }
+ /* We need the parent clock rate, which we might divide further
+ * depending on the timing requirements of the controller. See
+ * _set_timings.
+ */
+ sossi.fck_hz = clk_get_rate(dpll1out_ck);
+ clk_put(dpll1out_ck);
+
+ fck = clk_get(fbdev->dev, "ck_sossi");
+ if (IS_ERR(fck)) {
+ dev_err(fbdev->dev, "can't get SoSSI functional clock\n");
+ return PTR_ERR(fck);
+ }
+ sossi.fck = fck;
+
+ /* Reset and enable the SoSSI module */
+ l = omap_readl(MOD_CONF_CTRL_1);
+ l |= CONF_SOSSI_RESET_R;
+ omap_writel(l, MOD_CONF_CTRL_1);
+ l &= ~CONF_SOSSI_RESET_R;
+ omap_writel(l, MOD_CONF_CTRL_1);
+
+ clk_enable(sossi.fck);
+ l = omap_readl(ARM_IDLECT2);
+ l &= ~(1 << 8); /* DMACK_REQ */
+ omap_writel(l, ARM_IDLECT2);
+
+ l = sossi_read_reg(SOSSI_INIT2_REG);
+ /* Enable and reset the SoSSI block */
+ l |= (1 << 0) | (1 << 1);
+ sossi_write_reg(SOSSI_INIT2_REG, l);
+ /* Take SoSSI out of reset */
+ l &= ~(1 << 1);
+ sossi_write_reg(SOSSI_INIT2_REG, l);
+
+ sossi_write_reg(SOSSI_ID_REG, 0);
+ l = sossi_read_reg(SOSSI_ID_REG);
+ k = sossi_read_reg(SOSSI_ID_REG);
+
+ if (l != 0x55555555 || k != 0xaaaaaaaa) {
+ dev_err(fbdev->dev,
+ "invalid SoSSI sync pattern: %08x, %08x\n", l, k);
+ r = -ENODEV;
+ goto err;
+ }
+
+ if ((r = omap_lcdc_set_dma_callback(sossi_dma_callback, NULL)) < 0) {
+ dev_err(fbdev->dev, "can't get LCDC IRQ\n");
+ r = -ENODEV;
+ goto err;
+ }
+
+ l = sossi_read_reg(SOSSI_ID_REG); /* Component code */
+ l = sossi_read_reg(SOSSI_ID_REG);
+ dev_info(fbdev->dev, "SoSSI version %d.%d initialized\n",
+ l >> 16, l & 0xffff);
+
+ l = sossi_read_reg(SOSSI_INIT1_REG);
+ l |= (1 << 19); /* DMA_MODE */
+ l &= ~(1 << 31); /* REORDERING */
+ sossi_write_reg(SOSSI_INIT1_REG, l);
+
+ if ((r = request_irq(INT_1610_SoSSI_MATCH, sossi_match_irq,
+ IRQT_FALLING,
+ "sossi_match", sossi.fbdev->dev)) < 0) {
+ dev_err(sossi.fbdev->dev, "can't get SoSSI match IRQ\n");
+ goto err;
+ }
+
+ clk_disable(sossi.fck);
+ return 0;
+
+err:
+ clk_disable(sossi.fck);
+ clk_put(sossi.fck);
+ return r;
+}
+
+static void sossi_cleanup(void)
+{
+ omap_lcdc_free_dma_callback();
+ clk_put(sossi.fck);
+}
+
+struct lcd_ctrl_extif omap1_ext_if = {
+ .init = sossi_init,
+ .cleanup = sossi_cleanup,
+ .get_clk_info = sossi_get_clk_info,
+ .convert_timings = sossi_convert_timings,
+ .set_timings = sossi_set_timings,
+ .set_bits_per_cycle = sossi_set_bits_per_cycle,
+ .setup_tearsync = sossi_setup_tearsync,
+ .enable_tearsync = sossi_enable_tearsync,
+ .write_command = sossi_write_command,
+ .read_data = sossi_read_data,
+ .write_data = sossi_write_data,
+ .transfer_area = sossi_transfer_area,
+
+ .max_transmit_size = SOSSI_MAX_XMIT_BYTES,
+};
+
#define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */
#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
+#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
projects / linux-2.6-omap-h63xx.git / commitdiff