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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_8   (0)

#define RGB_16  (1)

#define NR_RGB  2

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 semaphore        ctrlr_sem;

        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, __FUNCTION__ , ## args)

#else

#  define DPRINTK(fmt, args...)

#endif

/*

 * Minimum X and Y resolutions

 */

#define MIN_XRES        64

#define MIN_YRES        64