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1da177e4 LT |
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 | ||
7cb66dcc RK |
13 | #define LCCR0 0x0000 /* LCD Control Reg. 0 */ |
14 | #define LCSR 0x0004 /* LCD Status Reg. */ | |
15 | #define DBAR1 0x0010 /* LCD DMA Base Address Reg. channel 1 */ | |
16 | #define DCAR1 0x0014 /* LCD DMA Current Address Reg. channel 1 */ | |
17 | #define DBAR2 0x0018 /* LCD DMA Base Address Reg. channel 2 */ | |
18 | #define DCAR2 0x001C /* LCD DMA Current Address Reg. channel 2 */ | |
19 | #define LCCR1 0x0020 /* LCD Control Reg. 1 */ | |
20 | #define LCCR2 0x0024 /* LCD Control Reg. 2 */ | |
21 | #define LCCR3 0x0028 /* LCD Control Reg. 3 */ | |
22 | ||
1da177e4 LT |
23 | /* Shadows for LCD controller registers */ |
24 | struct sa1100fb_lcd_reg { | |
25 | unsigned long lccr0; | |
26 | unsigned long lccr1; | |
27 | unsigned long lccr2; | |
28 | unsigned long lccr3; | |
29 | }; | |
30 | ||
1da177e4 LT |
31 | struct sa1100fb_info { |
32 | struct fb_info fb; | |
33 | struct device *dev; | |
58f5cbf2 | 34 | const struct sa1100fb_rgb *rgb[NR_RGB]; |
7cb66dcc | 35 | void __iomem *base; |
1da177e4 | 36 | |
1da177e4 LT |
37 | /* |
38 | * These are the addresses we mapped | |
39 | * the framebuffer memory region to. | |
40 | */ | |
41 | dma_addr_t map_dma; | |
42 | u_char * map_cpu; | |
43 | u_int map_size; | |
44 | ||
45 | u_char * screen_cpu; | |
46 | dma_addr_t screen_dma; | |
47 | u16 * palette_cpu; | |
48 | dma_addr_t palette_dma; | |
49 | u_int palette_size; | |
50 | ||
51 | dma_addr_t dbar1; | |
52 | dma_addr_t dbar2; | |
53 | ||
1da177e4 LT |
54 | u_int reg_lccr0; |
55 | u_int reg_lccr1; | |
56 | u_int reg_lccr2; | |
57 | u_int reg_lccr3; | |
58 | ||
59 | volatile u_char state; | |
60 | volatile u_char task_state; | |
7951ac91 | 61 | struct mutex ctrlr_lock; |
1da177e4 LT |
62 | wait_queue_head_t ctrlr_wait; |
63 | struct work_struct task; | |
64 | ||
65 | #ifdef CONFIG_CPU_FREQ | |
66 | struct notifier_block freq_transition; | |
67 | struct notifier_block freq_policy; | |
68 | #endif | |
086ada54 RK |
69 | |
70 | const struct sa1100fb_mach_info *inf; | |
1da177e4 LT |
71 | }; |
72 | ||
b385a144 | 73 | #define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member) |
1da177e4 LT |
74 | |
75 | #define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9) | |
76 | ||
77 | /* | |
78 | * These are the actions for set_ctrlr_state | |
79 | */ | |
80 | #define C_DISABLE (0) | |
81 | #define C_ENABLE (1) | |
82 | #define C_DISABLE_CLKCHANGE (2) | |
83 | #define C_ENABLE_CLKCHANGE (3) | |
84 | #define C_REENABLE (4) | |
85 | #define C_DISABLE_PM (5) | |
86 | #define C_ENABLE_PM (6) | |
87 | #define C_STARTUP (7) | |
88 | ||
89 | #define SA1100_NAME "SA1100" | |
90 | ||
1da177e4 LT |
91 | /* |
92 | * Minimum X and Y resolutions | |
93 | */ | |
94 | #define MIN_XRES 64 | |
95 | #define MIN_YRES 64 | |
96 |