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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
13struct 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 */
26struct sa1100fb_lcd_reg {
27 unsigned long lccr0;
28 unsigned long lccr1;
29 unsigned long lccr2;
30 unsigned long lccr3;
31};
32
33struct 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