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 | struct gpio_desc; |
14 | |
15 | #define LCCR0 0x0000 /* LCD Control Reg. 0 */ |
16 | #define LCSR 0x0004 /* LCD Status Reg. */ |
17 | #define DBAR1 0x0010 /* LCD DMA Base Address Reg. channel 1 */ |
18 | #define DCAR1 0x0014 /* LCD DMA Current Address Reg. channel 1 */ |
19 | #define DBAR2 0x0018 /* LCD DMA Base Address Reg. channel 2 */ |
20 | #define DCAR2 0x001C /* LCD DMA Current Address Reg. channel 2 */ |
21 | #define LCCR1 0x0020 /* LCD Control Reg. 1 */ |
22 | #define LCCR2 0x0024 /* LCD Control Reg. 2 */ |
23 | #define LCCR3 0x0028 /* LCD Control Reg. 3 */ |
24 | |
25 | /* Shadows for LCD controller registers */ |
26 | struct sa1100fb_lcd_reg { |
27 | unsigned long lccr0; |
28 | unsigned long lccr1; |
29 | unsigned long lccr2; |
30 | unsigned long lccr3; |
31 | }; |
32 | |
33 | struct sa1100fb_info { |
34 | struct fb_info fb; |
35 | struct device *dev; |
36 | const struct sa1100fb_rgb *rgb[NR_RGB]; |
37 | void __iomem *base; |
38 | struct gpio_desc *shannon_lcden; |
39 | |
40 | /* |
41 | * These are the addresses we mapped |
42 | * the framebuffer memory region to. |
43 | */ |
44 | dma_addr_t map_dma; |
45 | u_char * map_cpu; |
46 | u_int map_size; |
47 | |
48 | u_char * screen_cpu; |
49 | dma_addr_t screen_dma; |
50 | u16 * palette_cpu; |
51 | dma_addr_t palette_dma; |
52 | u_int palette_size; |
53 | |
54 | dma_addr_t dbar1; |
55 | dma_addr_t dbar2; |
56 | |
57 | u_int reg_lccr0; |
58 | u_int reg_lccr1; |
59 | u_int reg_lccr2; |
60 | u_int reg_lccr3; |
61 | |
62 | volatile u_char state; |
63 | volatile u_char task_state; |
64 | struct mutex ctrlr_lock; |
65 | wait_queue_head_t ctrlr_wait; |
66 | struct work_struct task; |
67 | |
68 | #ifdef CONFIG_CPU_FREQ |
69 | struct notifier_block freq_transition; |
70 | #endif |
71 | |
72 | const struct sa1100fb_mach_info *inf; |
73 | struct clk *clk; |
74 | |
75 | u32 pseudo_palette[16]; |
76 | }; |
77 | |
78 | #define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member) |
79 | |
80 | #define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9) |
81 | |
82 | /* |
83 | * These are the actions for set_ctrlr_state |
84 | */ |
85 | #define C_DISABLE (0) |
86 | #define C_ENABLE (1) |
87 | #define C_DISABLE_CLKCHANGE (2) |
88 | #define C_ENABLE_CLKCHANGE (3) |
89 | #define C_REENABLE (4) |
90 | #define C_DISABLE_PM (5) |
91 | #define C_ENABLE_PM (6) |
92 | #define C_STARTUP (7) |
93 | |
94 | #define SA1100_NAME "SA1100" |
95 | |
96 | /* |
97 | * Minimum X and Y resolutions |
98 | */ |
99 | #define MIN_XRES 64 |
100 | #define MIN_YRES 64 |
101 | |
102 | |