2 * arch/arm/mach-pxa/include/mach/pxafb.h
4 * Support for the xscale frame buffer.
6 * Author: Jean-Frederic Clere
7 * Created: Sep 22, 2003
8 * Copyright: jfclere@sinix.net
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
16 #include <mach/regs-lcd.h>
19 * Supported LCD connections
21 * bits 0 - 3: for LCD panel type:
23 * STN - for passive matrix
24 * DSTN - for dual scan passive matrix
25 * TFT - for active matrix
27 * bits 4 - 9 : for bus width
28 * bits 10-17 : for AC Bias Pin Frequency
29 * bit 18 : for output enable polarity
30 * bit 19 : for pixel clock edge
31 * bit 20 : for output pixel format when base is RGBT16
33 #define LCD_CONN_TYPE(_x) ((_x) & 0x0f)
34 #define LCD_CONN_WIDTH(_x) (((_x) >> 4) & 0x1f)
36 #define LCD_TYPE_MASK 0xf
37 #define LCD_TYPE_UNKNOWN 0
38 #define LCD_TYPE_MONO_STN 1
39 #define LCD_TYPE_MONO_DSTN 2
40 #define LCD_TYPE_COLOR_STN 3
41 #define LCD_TYPE_COLOR_DSTN 4
42 #define LCD_TYPE_COLOR_TFT 5
43 #define LCD_TYPE_SMART_PANEL 6
44 #define LCD_TYPE_MAX 7
46 #define LCD_MONO_STN_4BPP ((4 << 4) | LCD_TYPE_MONO_STN)
47 #define LCD_MONO_STN_8BPP ((8 << 4) | LCD_TYPE_MONO_STN)
48 #define LCD_MONO_DSTN_8BPP ((8 << 4) | LCD_TYPE_MONO_DSTN)
49 #define LCD_COLOR_STN_8BPP ((8 << 4) | LCD_TYPE_COLOR_STN)
50 #define LCD_COLOR_DSTN_16BPP ((16 << 4) | LCD_TYPE_COLOR_DSTN)
51 #define LCD_COLOR_TFT_8BPP ((8 << 4) | LCD_TYPE_COLOR_TFT)
52 #define LCD_COLOR_TFT_16BPP ((16 << 4) | LCD_TYPE_COLOR_TFT)
53 #define LCD_COLOR_TFT_18BPP ((18 << 4) | LCD_TYPE_COLOR_TFT)
54 #define LCD_SMART_PANEL_8BPP ((8 << 4) | LCD_TYPE_SMART_PANEL)
55 #define LCD_SMART_PANEL_16BPP ((16 << 4) | LCD_TYPE_SMART_PANEL)
56 #define LCD_SMART_PANEL_18BPP ((18 << 4) | LCD_TYPE_SMART_PANEL)
58 #define LCD_AC_BIAS_FREQ(x) (((x) & 0xff) << 10)
59 #define LCD_BIAS_ACTIVE_HIGH (0 << 18)
60 #define LCD_BIAS_ACTIVE_LOW (1 << 18)
61 #define LCD_PCLK_EDGE_RISE (0 << 19)
62 #define LCD_PCLK_EDGE_FALL (1 << 19)
63 #define LCD_ALTERNATE_MAPPING (1 << 20)
66 * This structure describes the machine which we are running on.
67 * It is set in linux/arch/arm/mach-pxa/machine_name.c and used in the probe routine
68 * of linux/drivers/video/pxafb.c
70 struct pxafb_mode_info {
77 u_int cmap_greyscale:1,
81 /* Parallel Mode Timing */
91 /* Smart Panel Mode Timing - see PXA27x DM 7.4.15.0.3 for details
93 * 1. all parameters in nanosecond (ns)
94 * 2. a0cs{rd,wr}_set_hld are controlled by the same register bits
95 * in pxa27x and pxa3xx, initialize them to the same value or
96 * the larger one will be used
97 * 3. same to {rd,wr}_pulse_width
99 unsigned a0csrd_set_hld; /* A0 and CS Setup/Hold Time before/after L_FCLK_RD */
100 unsigned a0cswr_set_hld; /* A0 and CS Setup/Hold Time before/after L_PCLK_WR */
101 unsigned wr_pulse_width; /* L_PCLK_WR pulse width */
102 unsigned rd_pulse_width; /* L_FCLK_RD pulse width */
103 unsigned cmd_inh_time; /* Command Inhibit time between two writes */
104 unsigned op_hold_time; /* Output Hold time from L_FCLK_RD negation */
107 struct pxafb_mach_info {
108 struct pxafb_mode_info *modes;
109 unsigned int num_modes;
111 unsigned int lcd_conn;
118 /* The following should be defined in LCCR0
119 * LCCR0_Act or LCCR0_Pas Active or Passive
120 * LCCR0_Sngl or LCCR0_Dual Single/Dual panel
121 * LCCR0_Mono or LCCR0_Color Mono/Color
122 * LCCR0_4PixMono or LCCR0_8PixMono (in mono single mode)
123 * LCCR0_DMADel(Tcpu) (optional) DMA request delay
125 * The following should not be defined in LCCR0:
126 * LCCR0_OUM, LCCR0_BM, LCCR0_QDM, LCCR0_DIS, LCCR0_EFM
127 * LCCR0_IUM, LCCR0_SFM, LCCR0_LDM, LCCR0_ENB
130 /* The following should be defined in LCCR3
131 * LCCR3_OutEnH or LCCR3_OutEnL Output enable polarity
132 * LCCR3_PixRsEdg or LCCR3_PixFlEdg Pixel clock edge type
133 * LCCR3_Acb(X) AB Bias pin frequency
134 * LCCR3_DPC (optional) Double Pixel Clock mode (untested)
136 * The following should not be defined in LCCR3
137 * LCCR3_HSP, LCCR3_VSP, LCCR0_Pcd(x), LCCR3_Bpp
140 /* The following should be defined in LCCR4
141 * LCCR4_PAL_FOR_0 or LCCR4_PAL_FOR_1 or LCCR4_PAL_FOR_2
143 * All other bits in LCCR4 should be left alone.
146 void (*pxafb_backlight_power)(int);
147 void (*pxafb_lcd_power)(int, struct fb_var_screeninfo *);
148 void (*smart_update)(struct fb_info *);
150 void set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info);
151 void set_pxa_fb_parent(struct device *parent_dev);
152 unsigned long pxafb_get_hsync_time(struct device *dev);
154 extern int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int);
155 extern int pxafb_smart_flush(struct fb_info *info);