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authorRichard Purdie <rpurdie@rpsys.net>2005-09-06 18:19:03 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 19:57:53 -0400
commitaac51f09d96a0acfb73c1d1c0796358bb47ea07b (patch)
tree46fcabaac554971b8efb7f069a0a1a1cc29ed239 /include/video
parent8cc3c7af42aa826d413e3134628d85f3920457d8 (diff)
[PATCH] w100fb: Rewrite for platform independence
The code w100fb was based on was horribly Sharp SL-C7x0 specific and there was little else that could be done as I had no access to anything else with a w100 in it. There is no real documentation about this chipset available. Ian Molton has access to other platforms with the w100 (Toshiba e-series) and so between us, we've improved w100fb and made it platform independent. Ian Molton also added support for the very similar w3220 and w3200 chipsets. There are a lot of changes here and it nearly amounts to a rewrite of the driver but it has been extensively tested and is being used in preference to the original driver in the Zaurus community. I'd therefore like to update the mainline code to reflect this. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/video')
-rw-r--r--include/video/w100fb.h138
1 files changed, 133 insertions, 5 deletions
diff --git a/include/video/w100fb.h b/include/video/w100fb.h
index bd548c2b47c4..e6da2d7ded8c 100644
--- a/include/video/w100fb.h
+++ b/include/video/w100fb.h
@@ -1,21 +1,149 @@
1/* 1/*
2 * Support for the w100 frame buffer. 2 * Support for the w100 frame buffer.
3 * 3 *
4 * Copyright (c) 2004 Richard Purdie 4 * Copyright (c) 2004-2005 Richard Purdie
5 * Copyright (c) 2005 Ian Molton
5 * 6 *
6 * This program is free software; you can redistribute it and/or modify 7 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as 8 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation. 9 * published by the Free Software Foundation.
9 */ 10 */
10 11
12#define W100_GPIO_PORT_A 0
13#define W100_GPIO_PORT_B 1
14
15#define CLK_SRC_XTAL 0
16#define CLK_SRC_PLL 1
17
18struct w100fb_par;
19
20unsigned long w100fb_gpio_read(int port);
21void w100fb_gpio_write(int port, unsigned long value);
22
23/* LCD Specific Routines and Config */
24struct w100_tg_info {
25 void (*change)(struct w100fb_par*);
26 void (*suspend)(struct w100fb_par*);
27 void (*resume)(struct w100fb_par*);
28};
29
30/* General Platform Specific w100 Register Values */
31struct w100_gen_regs {
32 unsigned long lcd_format;
33 unsigned long lcdd_cntl1;
34 unsigned long lcdd_cntl2;
35 unsigned long genlcd_cntl1;
36 unsigned long genlcd_cntl2;
37 unsigned long genlcd_cntl3;
38};
39
40struct w100_gpio_regs {
41 unsigned long init_data1;
42 unsigned long init_data2;
43 unsigned long gpio_dir1;
44 unsigned long gpio_oe1;
45 unsigned long gpio_dir2;
46 unsigned long gpio_oe2;
47};
48
49/* Optional External Memory Configuration */
50struct w100_mem_info {
51 unsigned long ext_cntl;
52 unsigned long sdram_mode_reg;
53 unsigned long ext_timing_cntl;
54 unsigned long io_cntl;
55 unsigned int size;
56};
57
58struct w100_bm_mem_info {
59 unsigned long ext_mem_bw;
60 unsigned long offset;
61 unsigned long ext_timing_ctl;
62 unsigned long ext_cntl;
63 unsigned long mode_reg;
64 unsigned long io_cntl;
65 unsigned long config;
66};
67
68/* LCD Mode definition */
69struct w100_mode {
70 unsigned int xres;
71 unsigned int yres;
72 unsigned short left_margin;
73 unsigned short right_margin;
74 unsigned short upper_margin;
75 unsigned short lower_margin;
76 unsigned long crtc_ss;
77 unsigned long crtc_ls;
78 unsigned long crtc_gs;
79 unsigned long crtc_vpos_gs;
80 unsigned long crtc_rev;
81 unsigned long crtc_dclk;
82 unsigned long crtc_gclk;
83 unsigned long crtc_goe;
84 unsigned long crtc_ps1_active;
85 char pll_freq;
86 char fast_pll_freq;
87 int sysclk_src;
88 int sysclk_divider;
89 int pixclk_src;
90 int pixclk_divider;
91 int pixclk_divider_rotated;
92};
93
94struct w100_pll_info {
95 uint16_t freq; /* desired Fout for PLL (Mhz) */
96 uint8_t M; /* input divider */
97 uint8_t N_int; /* VCO multiplier */
98 uint8_t N_fac; /* VCO multiplier fractional part */
99 uint8_t tfgoal;
100 uint8_t lock_time;
101};
102
103/* Initial Video mode orientation flags */
104#define INIT_MODE_ROTATED 0x1
105#define INIT_MODE_FLIPPED 0x2
106
11/* 107/*
12 * This structure describes the machine which we are running on. 108 * This structure describes the machine which we are running on.
13 * It is set by machine specific code and used in the probe routine 109 * It is set by machine specific code and used in the probe routine
14 * of drivers/video/w100fb.c 110 * of drivers/video/w100fb.c
15 */ 111 */
16
17struct w100fb_mach_info { 112struct w100fb_mach_info {
18 void (*w100fb_ssp_send)(u8 adrs, u8 data); 113 /* General Platform Specific Registers */
19 int comadj; 114 struct w100_gen_regs *regs;
20 int phadadj; 115 /* Table of modes the LCD is capable of */
116 struct w100_mode *modelist;
117 unsigned int num_modes;
118 /* Hooks for any platform specific tg/lcd code (optional) */
119 struct w100_tg_info *tg;
120 /* External memory definition (if present) */
121 struct w100_mem_info *mem;
122 /* Additional External memory definition (if present) */
123 struct w100_bm_mem_info *bm_mem;
124 /* GPIO definitions (optional) */
125 struct w100_gpio_regs *gpio;
126 /* Initial Mode flags */
127 unsigned int init_mode;
128 /* Xtal Frequency */
129 unsigned int xtal_freq;
130 /* Enable Xtal input doubler (1 == enable) */
131 unsigned int xtal_dbl;
132};
133
134/* General frame buffer data structure */
135struct w100fb_par {
136 unsigned int chip_id;
137 unsigned int xres;
138 unsigned int yres;
139 unsigned int extmem_active;
140 unsigned int flip;
141 unsigned int blanked;
142 unsigned int fastpll_mode;
143 unsigned long hsync_len;
144 struct w100_mode *mode;
145 struct w100_pll_info *pll_table;
146 struct w100fb_mach_info *mach;
147 uint32_t *saved_intmem;
148 uint32_t *saved_extmem;
21}; 149};