File: /usr/src/linux/drivers/video/sa1100fb.h
1 /*
2 * linux/drivers/video/sa1100fb.h
3 * -- StrongARM 1100 LCD Controller Frame Buffer Device
4 *
5 * Copyright (C) 1999 Eric A. Thomas
6 * Based on acornfb.c Copyright (C) Russell King.
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file COPYING in the main directory of this archive
10 * for more details.
11 */
12
13 /*
14 * These are the bitfields for each
15 * display depth that we support.
16 */
17 struct sa1100fb_rgb {
18 struct fb_bitfield red;
19 struct fb_bitfield green;
20 struct fb_bitfield blue;
21 struct fb_bitfield transp;
22 };
23
24 /*
25 * This structure describes the machine which we are running on.
26 */
27 struct sa1100fb_mach_info {
28 u_long pixclock;
29
30 u_short xres;
31 u_short yres;
32
33 u_char bpp;
34 u_char hsync_len;
35 u_char left_margin;
36 u_char right_margin;
37
38 u_char vsync_len;
39 u_char upper_margin;
40 u_char lower_margin;
41 u_char sync;
42
43 u_int cmap_greyscale:1,
44 cmap_inverse:1,
45 cmap_static:1,
46 unused:29;
47
48 u_int lccr0;
49 u_int lccr3;
50 };
51
52 /* Shadows for LCD controller registers */
53 struct sa1100fb_lcd_reg {
54 Word lccr0;
55 Word lccr1;
56 Word lccr2;
57 Word lccr3;
58 };
59
60 #define RGB_8 (0)
61 #define RGB_16 (1)
62 #define NR_RGB 2
63
64 struct sa1100fb_info {
65 struct fb_info fb;
66 signed int currcon;
67
68 struct sa1100fb_rgb *rgb[NR_RGB];
69
70 u_int max_bpp;
71 u_int max_xres;
72 u_int max_yres;
73
74 /*
75 * These are the addresses we mapped
76 * the framebuffer memory region to.
77 */
78 dma_addr_t map_dma;
79 u_char * map_cpu;
80 u_int map_size;
81
82 u_char * screen_cpu;
83 dma_addr_t screen_dma;
84 u16 * palette_cpu;
85 dma_addr_t palette_dma;
86 u_int palette_size;
87
88 dma_addr_t dbar1;
89 dma_addr_t dbar2;
90
91 u_int lccr0;
92 u_int lccr3;
93 u_int cmap_inverse:1,
94 cmap_static:1,
95 unused:30;
96
97 u_int reg_lccr0;
98 u_int reg_lccr1;
99 u_int reg_lccr2;
100 u_int reg_lccr3;
101
102 volatile u_char state;
103 volatile u_char task_state;
104 struct semaphore ctrlr_sem;
105 wait_queue_head_t ctrlr_wait;
106 struct tq_struct task;
107
108 #ifdef CONFIG_PM
109 struct pm_dev *pm;
110 #endif
111 #ifdef CONFIG_CPU_FREQ
112 struct notifier_block clockchg;
113 #endif
114 };
115
116 #define __type_entry(ptr,type,member) ((type *)((char *)(ptr)-offsetof(type,member)))
117
118 #define TO_INF(ptr,member) __type_entry(ptr,struct sa1100fb_info,member)
119
120 #define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9)
121
122 /*
123 * These are the actions for set_ctrlr_state
124 */
125 #define C_DISABLE (0)
126 #define C_ENABLE (1)
127 #define C_DISABLE_CLKCHANGE (2)
128 #define C_ENABLE_CLKCHANGE (3)
129 #define C_REENABLE (4)
130
131 #define SA1100_NAME "SA1100"
132
133 /*
134 * Debug macros
135 */
136 #if DEBUG
137 # define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ## args)
138 #else
139 # define DPRINTK(fmt, args...)
140 #endif
141
142 /*
143 * Minimum X and Y resolutions
144 */
145 #define MIN_XRES 64
146 #define MIN_YRES 64
147
148