drivers/video/omap/lcd_p2.c

   1 /*
   2  * File: drivers/video/omap_new/lcd-p2.c
   3  *
   4  * LCD panel support for the TI OMAP P2 board
   5  *
   6  * Authors:
   7  *   jekyll <jekyll@mail.jekyll.idv.tw>
   8  *   B Jp <lastjp_fr@yahoo.fr>
   9  *   Brian Swetland <swetland@android.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License as published by the
  13  * Free Software Foundation; either version 2 of the License, or (at your
  14  * option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  */
  25
  26 #include <linux/module.h>
  27 #include <linux/delay.h>
  28 #include <asm/arch/mux.h>
  29 #include <asm/arch/gpio.h>
  30
  31 #include "omapfb.h"
  32
  33 /*
  34  * File: epson-md-tft.h
  35  *
  36  * This file contains definitions for Epsons MD-TF LCD Module
  37  *
  38  * Copyright (C) 2004 MPC-Data Limited  (http://www.mpc-data.co.uk)
  39  * Author: Dave Peverley <dpeverley at mpc-data.co.uk>
  40  *
  41  *  This program is free software; you can redistribute  it and/or modify it
  42  *  under  the terms of  the GNU General  Public License as published by the
  43  *  Free Software Foundation;  either version 2 of the  License, or (at your
  44  *  option) any later version.
  45  *
  46  *  THIS  SOFTWARE  IS  PROVIDED  ``AS  IS''  AND   ANY  EXPRESS  OR IMPLIED
  47  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  48  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  49  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT,  INDIRECT,
  50  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  51  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  52  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  53  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  54  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  55  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  56  *
  57  *  You should have received a copy of the  GNU General Public License along
  58  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  59  *  675 Mass Ave, Cambridge, MA 02139, USA.
  60  *
  61  * Please report all bugs and problems to the author.
  62  *
  63  */
  64
  65 /* LCD uWire commands & params
  66  * All values from Epson
  67  */
  68 #define LCD_DISON 0xAF
  69 #define LCD_DISOFF 0xAE
  70 #define LCD_DISNOR 0xA6
  71 #define LCD_DISINV 0xA7
  72 #define LCD_DISCTL 0xCA
  73 #define LCD_GCP64 0xCB
  74 #define LCD_GCP16 0xCC
  75 #define LCD_GSSET 0xCD
  76 #define LCD_SLPIN 0x95
  77 #define LCD_SLPOUT 0x94
  78 #define LCD_SD_PSET 0x75
  79 #define LCD_MD_PSET 0x76
  80 #define LCD_SD_CSET 0x15
  81 #define LCD_MD_CSET 0x16
  82 #define LCD_DATCTL 0xBC
  83 #define LCD_RAMWR 0x5C
  84 #define LCD_RAMRD 0x5D
  85 #define LCD_PTLIN 0xA8
  86 #define LCD_PTLOUT 0xA9
  87 #define LCD_ASCSET 0xAA
  88 #define LCD_SCSTART 0xAB
  89 #define LCD_VOLCTL 0xC6
  90 #define LCD_NOP 0x25
  91 #define LCD_OSCISEL 0x7
  92 #define LCD_3500KSET 0xD1
  93 #define LCD_3500KEND 0xD2
  94 #define LCD_14MSET 0xD3
  95 #define LCD_14MEND 0xD4
  96
  97 #define INIT_3500KSET 0x45
  98 #define INIT_14MSET 0x4B
  99 #define INIT_DATCTL 0x08 /* 6.6.6 bits for D-Sample */
 100
 101 #define INIT_OSCISEL 0x05
 102
 103 #define INIT_VOLCTL 0x77 /* Nominel "volume" */
 104
 105 #define INIT_VOLCTL_Ton 0x98 /* Activate power-IC timer */
 106 #define INIT_GSSET 0x00
 107
 108 const unsigned short INIT_DISCTL[11] =
 109 {
 110         0xDE, 0x01, 0x64, 0x00, 0x1B, 0xF4, 0x00, 0xDC, 0x00, 0x02, 0x00
 111 };
 112
 113 const unsigned short INIT_GCP64[126] =
 114 {
 115         0x3B,0x00,0x42,0x00,0x4A,0x00,0x51,0x00,
 116         0x58,0x00,0x5F,0x00,0x66,0x00,0x6E,0x00,
 117         0x75,0x00,0x7C,0x00,0x83,0x00,0x8A,0x00,
 118         0x92,0x00,0x99,0x00,0xA0,0x00,0xA7,0x00,
 119         0xAE,0x00,0xB6,0x00,0xBD,0x00,0xC4,0x00,
 120         0xCB,0x00,0xD2,0x00,0xDA,0x00,0xE1,0x00,
 121         0xE8,0x00,0xEF,0x00,0xF6,0x00,0xFE,0x00,
 122         0x05,0x01,0x0C,0x01,0x13,0x01,0x1A,0x01,
 123         0x22,0x01,0x29,0x01,0x30,0x01,0x37,0x01,
 124         0x3E,0x01,0x46,0x01,0x4D,0x01,0x54,0x01,
 125         0x5B,0x01,0x62,0x01,0x6A,0x01,0x71,0x01,
 126         0x78,0x01,0x7F,0x01,0x86,0x01,0x8E,0x01,
 127         0x95,0x01,0x9C,0x01,0xA3,0x01,0xAA,0x01,
 128         0xB2,0x01,0xB9,0x01,0xC0,0x01,0xC7,0x01,
 129         0xCE,0x01,0xD6,0x01,0xDD,0x01,0xE4,0x01,
 130         0xEB,0x01,0xF2,0x01,0xFA,0x01
 131 };
 132
 133 const unsigned short INIT_GCP16[15] =
 134 {
 135         0x1A,0x31,0x48,0x54,0x5F,0x67,0x70,0x76,0x7C,0x80,0x83,0x84,0x85,0x87,0x96
 136 };
 137
 138 const unsigned short INIT_MD_PSET[4] = { 0, 0, 219, 0 };
 139 const unsigned short INIT_MD_CSET[4] = { 2, 0, 177, 0 };
 140
 141 const unsigned short INIT_SD_PSET[4] = { 0x00, 0x01, 0x00, 0x01 };
 142 const unsigned short INIT_SD_CSET[4] = { 0x00, 0x02, 0x00, 0x02 };
 143
 144 const unsigned short INIT_ASCSET[7] = { 0x00, 0x00, 0xDB, 0x00, 0xDC, 0x00, 0x01 };
 145 const unsigned short INIT_SCSTART[2] = { 0x00, 0x00 };
 146
 147 /* ----- end of epson_md_tft.h ----- */
 148
 149
 150 #include "debug.h"
 151 #include "../drivers/ssi/omap-uwire.h"
 152
 153 #define LCD_UWIRE_CS 0
 154
 155 static int p2_panel_init(struct lcd_panel *panel)
 156 {
 157         DBGENTER(1);
 158         DBGLEAVE(1);
 159         return 0;
 160 }
 161
 162 static void p2_panel_cleanup(struct lcd_panel *panel)
 163 {
 164         DBGENTER(1);
 165         DBGLEAVE(1);
 166 }
 167
 168 static int p2_panel_enable(struct lcd_panel *panel)
 169 {
 170         int i;
 171         unsigned long value;
 172         DBGENTER(1);
 173
 174                 /* thwack the reset line */
 175         omap_set_gpio_direction(19, 0);
 176         omap_set_gpio_dataout(19, 0);
 177         mdelay(2);
 178         omap_set_gpio_dataout(19, 1);
 179
 180                 /* bits 31:28 -> 0  LCD_PXL_15 .. 12 */
 181         value = omap_readl(OMAP730_IO_CONF_3) & 0x0FFFFFFF;
 182         omap_writel(value, OMAP730_IO_CONF_3);
 183
 184                 /* bits 19:0 -> 0  LCD_VSYNC, AC, PXL_0, PCLK, HSYNC,
 185                 **                 PXL_9..1, PXL_10, PXL_11
 186                 */
 187         value = omap_readl(OMAP730_IO_CONF_4) & 0xFFF00000;
 188         omap_writel(value, OMAP730_IO_CONF_4);
 189
 190         omap_uwire_configure_mode(0,16);
 191
 192         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISOFF, 9, 0,NULL,1);
 193         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SLPIN, 9, 0,NULL,1);
 194         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISNOR, 9, 0,NULL,1);
 195         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GSSET, 9, 0,NULL,1);
 196         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GSSET | 0x100), 9, 0,NULL,1);
 197
 198         /* DISCTL */
 199         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISCTL, 9, 0,NULL,1);
 200         for (i = 0; i < (sizeof(INIT_DISCTL)/sizeof(unsigned short)); i++)
 201                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_DISCTL[i] | 0x100), 9, 0,NULL,1);
 202
 203         /* GCP64 */
 204         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GCP64, 9, 0,NULL,1);
 205         for (i = 0; i < (sizeof(INIT_GCP64)/sizeof(unsigned short)); i++)
 206                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GCP64[i] | 0x100), 9, 0,NULL,1);
 207
 208         /* GCP16 */
 209         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GCP16, 9, 0,NULL,1);
 210         for (i = 0; i < (sizeof(INIT_GCP16)/sizeof(unsigned short)); i++)
 211                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GCP16[i] | 0x100), 9, 0,NULL,1);
 212
 213         /* MD_CSET */
 214         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_MD_CSET, 9, 0,NULL,1);
 215         for (i = 0; i < (sizeof(INIT_MD_CSET)/sizeof(unsigned short)); i++)
 216                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_MD_CSET[i] | 0x100), 9, 0,NULL,1);
 217
 218         /* MD_PSET */
 219         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_MD_PSET, 9, 0,NULL,1);
 220         for (i = 0; i < (sizeof(INIT_MD_PSET)/sizeof(unsigned short)); i++)
 221                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_MD_PSET[i] | 0x100), 9, 0,NULL,1);
 222
 223         /* SD_CSET */
 224         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SD_CSET, 9, 0,NULL,1);
 225         for (i = 0; i < (sizeof(INIT_SD_CSET)/sizeof(unsigned short)); i++)
 226                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_SD_CSET[i] | 0x100), 9, 0,NULL,1);
 227
 228         /* SD_PSET */
 229         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SD_PSET, 9, 0,NULL,1);
 230         for (i = 0; i < (sizeof(INIT_SD_PSET)/sizeof(unsigned short)); i++)
 231                 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_SD_PSET[i] | 0x100), 9, 0,NULL,1);
 232
 233         /* DATCTL */
 234         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DATCTL, 9, 0,NULL,1);
 235         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_DATCTL | 0x100), 9, 0,NULL,1);
 236
 237         /* OSSISEL = d'5 */
 238         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_OSCISEL, 9, 0,NULL,1);
 239         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_OSCISEL | 0x100), 9, 0,NULL,1);
 240
 241         /* 14MSET = d'74 */
 242         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_14MSET, 9, 0,NULL,1);
 243         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_14MSET | 0x100), 9, 0,NULL,1);
 244
 245         /* 14MEND */
 246         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_14MEND, 9, 0,NULL,1);
 247
 248         /* 3500KSET = d'69 */
 249         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_3500KSET, 9, 0,NULL,1);
 250         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_3500KSET | 0x100), 9, 0,NULL,1);
 251
 252         /* 3500KEND */
 253         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_3500KEND, 9, 0,NULL,1);
 254
 255         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SLPOUT, 9, 0,NULL,1);
 256
 257         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_VOLCTL, 9, 0,NULL,1);
 258         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_VOLCTL_Ton | 0x100), 9, 0,NULL,1);
 259
 260         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_VOLCTL, 9, 0,NULL,1);
 261
 262         omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_VOLCTL | 0x100), 9, 0,NULL,1);
 263
 264         omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISON, 9, 0,NULL,1);
 265
 266         /* enable backlight */
 267         omap_set_gpio_direction(134, 0);
 268         omap_set_gpio_dataout(134, 1);
 269
 270         DBGLEAVE(1);
 271         return 0;
 272 }
 273
 274 static void p2_panel_disable(struct lcd_panel *panel)
 275 {
 276         DBGENTER(1);
 277         DBGLEAVE(1);
 278 }
 279
 280 static unsigned long p2_panel_get_caps(struct lcd_panel *panel)
 281 {
 282         return 0;
 283 }
 284
 285 static struct lcdc_video_mode mode176x220 = {
 286         .x_res = 176,
 287         .y_res = 220,
 288         .pixel_clock = 12500,
 289         .bpp = 16,
 290         .hsw = 5,
 291         .hfp = 1,
 292         .hbp = 1,
 293         .vsw = 2,
 294         .vfp = 12,
 295         .vbp = 1,
 296         .pcd = 4,
 297         .flags = OMAP_LCDC_INV_PIX_CLOCK,
 298 };
 299
 300 struct lcd_panel p2_panel = {
 301         .name       = "p2",
 302         .config     = LCD_PANEL_TFT,
 303         .video_mode = &mode176x220,
 304
 305         .init    = p2_panel_init,
 306         .cleanup = p2_panel_cleanup,
 307         .enable  = p2_panel_enable,
 308         .disable = p2_panel_disable,
 309         .get_caps= p2_panel_get_caps,
 310 };
 311