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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Russell King7cb66dc2012-02-21 12:15:09 +000013#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070023/* Shadows for LCD controller registers */
24struct sa1100fb_lcd_reg {
25 unsigned long lccr0;
26 unsigned long lccr1;
27 unsigned long lccr2;
28 unsigned long lccr3;
29};
30
Linus Torvalds1da177e2005-04-16 15:20:36 -070031struct sa1100fb_info {
32 struct fb_info fb;
33 struct device *dev;
Russell King58f5cbf2012-01-14 10:13:30 +000034 const struct sa1100fb_rgb *rgb[NR_RGB];
Russell King7cb66dc2012-02-21 12:15:09 +000035 void __iomem *base;
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 /*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 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;
Matthias Kaehlcke7951ac92008-07-23 21:31:16 -070061 struct mutex ctrlr_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 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
Russell King086ada52012-01-14 12:03:22 +000069
70 const struct sa1100fb_mach_info *inf;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071};
72
Robert P. J. Dayb385a142007-02-10 01:46:25 -080073#define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member)
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
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
91/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070092 * Minimum X and Y resolutions
93 */
94#define MIN_XRES 64
95#define MIN_YRES 64
96