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sa1100fb.h
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sa1100fb.h
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/*
* linux/drivers/video/sa1100fb.h
* -- StrongARM 1100 LCD Controller Frame Buffer Device
*
* Copyright (C) 1999 Eric A. Thomas
* Based on acornfb.c Copyright (C) Russell King.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
/*
* These are the bitfields for each
* display depth that we support.
*/
struct sa1100fb_rgb {
struct fb_bitfield red;
struct fb_bitfield green;
struct fb_bitfield blue;
struct fb_bitfield transp;
};
/*
* This structure describes the machine which we are running on.
*/
struct sa1100fb_mach_info {
u_long pixclock;
u_short xres;
u_short yres;
u_char bpp;
u_char hsync_len;
u_char left_margin;
u_char right_margin;
u_char vsync_len;
u_char upper_margin;
u_char lower_margin;
u_char sync;
u_int cmap_greyscale:1,
cmap_inverse:1,
cmap_static:1,
unused:29;
u_int lccr0;
u_int lccr3;
};
/* Shadows for LCD controller registers */
struct sa1100fb_lcd_reg {
unsigned long lccr0;
unsigned long lccr1;
unsigned long lccr2;
unsigned long lccr3;
};
#define RGB_4 (0)
#define RGB_8 (1)
#define RGB_16 (2)
#define NR_RGB 3
struct sa1100fb_info {
struct fb_info fb;
struct device *dev;
struct sa1100fb_rgb *rgb[NR_RGB];
u_int max_bpp;
u_int max_xres;
u_int max_yres;
/*
* These are the addresses we mapped
* the framebuffer memory region to.
*/
dma_addr_t map_dma;
u_char * map_cpu;
u_int map_size;
u_char * screen_cpu;
dma_addr_t screen_dma;
u16 * palette_cpu;
dma_addr_t palette_dma;
u_int palette_size;
dma_addr_t dbar1;
dma_addr_t dbar2;
u_int lccr0;
u_int lccr3;
u_int cmap_inverse:1,
cmap_static:1,
unused:30;
u_int reg_lccr0;
u_int reg_lccr1;
u_int reg_lccr2;
u_int reg_lccr3;
volatile u_char state;
volatile u_char task_state;
struct mutex ctrlr_lock;
wait_queue_head_t ctrlr_wait;
struct work_struct task;
#ifdef CONFIG_CPU_FREQ
struct notifier_block freq_transition;
struct notifier_block freq_policy;
#endif
};
#define TO_INF(ptr,member) container_of(ptr,struct sa1100fb_info,member)
#define SA1100_PALETTE_MODE_VAL(bpp) (((bpp) & 0x018) << 9)
/*
* These are the actions for set_ctrlr_state
*/
#define C_DISABLE (0)
#define C_ENABLE (1)
#define C_DISABLE_CLKCHANGE (2)
#define C_ENABLE_CLKCHANGE (3)
#define C_REENABLE (4)
#define C_DISABLE_PM (5)
#define C_ENABLE_PM (6)
#define C_STARTUP (7)
#define SA1100_NAME "SA1100"
/*
* Debug macros
*/
#if DEBUG
# define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ## args)
#else
# define DPRINTK(fmt, args...)
#endif
/*
* Minimum X and Y resolutions
*/
#define MIN_XRES 64
#define MIN_YRES 64