LXR linux/drivers/video/sa1100fb.h

   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
  13/*
  14 * These are the bitfields for each
  15 * display depth that we support.
  16 */
  17struct sa1100fb_rgb {
  18        struct fb_bitfield      red;
  19        struct fb_bitfield      green;
  20        struct fb_bitfield      blue;
  21        struct fb_bitfield      transp;
  22};
  23
  24/*
  25 * This structure describes the machine which we are running on.
  26 */
  27struct sa1100fb_mach_info {
  28        u_long          pixclock;
  29
  30        u_short         xres;
  31        u_short         yres;
  32
  33        u_char          bpp;
  34        u_char          hsync_len;
  35        u_char          left_margin;
  36        u_char          right_margin;
  37
  38        u_char          vsync_len;
  39        u_char          upper_margin;
  40        u_char          lower_margin;
  41        u_char          sync;
  42
  43        u_int           cmap_greyscale:1,
  44                        cmap_inverse:1,
  45                        cmap_static:1,
  46                        unused:29;
  47
  48        u_int           lccr0;
  49        u_int           lccr3;
  50};
  51
  52/* Shadows for LCD controller registers */
  53struct sa1100fb_lcd_reg {
  54        unsigned long lccr0;
  55        unsigned long lccr1;
  56        unsigned long lccr2;
  57        unsigned long lccr3;
  58};
  59
  60#define RGB_4   (0)
  61#define RGB_8   (1)
  62#define RGB_16  (2)
  63#define NR_RGB  3
  64
  65struct sa1100fb_info {
  66        struct fb_info          fb;
  67        struct device           *dev;
  68        struct sa1100fb_rgb     *rgb[NR_RGB];
  69
  70        u_int                   max_bpp;
  71        u_int                   max_xres;
  72        u_int                   max_yres;
  73
  74        /*
  75         * These are the addresses we mapped
  76         * the framebuffer memory region to.
  77         */
  78        dma_addr_t              map_dma;
  79        u_char *                map_cpu;
  80        u_int                   map_size;
  81
  82        u_char *                screen_cpu;
  83        dma_addr_t              screen_dma;
  84        u16 *                   palette_cpu;
  85        dma_addr_t              palette_dma;
  86        u_int                   palette_size;
  87
  88        dma_addr_t              dbar1;
  89        dma_addr_t              dbar2;
  90
  91        u_int                   lccr0;
  92        u_int                   lccr3;
  93        u_int                   cmap_inverse:1,
  94                                cmap_static:1,
  95                                unused:30;
  96
  97        u_int                   reg_lccr0;
  98        u_int                   reg_lccr1;
  99        u_int                   reg_lccr2;
 100        u_int                   reg_lccr3;
 101
 102        volatile u_char         state;
 103        volatile u_char         task_state;
 104        struct mutex            ctrlr_lock;
 105        wait_queue_head_t       ctrlr_wait;
 106        struct work_struct      task;
 107
 108#ifdef CONFIG_CPU_FREQ
 109        struct notifier_block   freq_transition;
 110        struct notifier_block   freq_policy;
 111#endif
 112};
 113
 114#define TO_INF(ptr,member)      container_of(ptr,struct sa1100fb_info,member)
 115
 116#define SA1100_PALETTE_MODE_VAL(bpp)    (((bpp) & 0x018) << 9)
 117
 118/*
 119 * These are the actions for set_ctrlr_state
 120 */
 121#define C_DISABLE               (0)
 122#define C_ENABLE                (1)
 123#define C_DISABLE_CLKCHANGE     (2)
 124#define C_ENABLE_CLKCHANGE      (3)
 125#define C_REENABLE              (4)
 126#define C_DISABLE_PM            (5)
 127#define C_ENABLE_PM             (6)
 128#define C_STARTUP               (7)
 129
 130#define SA1100_NAME     "SA1100"
 131
 132/*
 133 *  Debug macros 
 134 */
 135#if DEBUG
 136#  define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ## args)
 137#else
 138#  define DPRINTK(fmt, args...)
 139#endif
 140
 141/*
 142 * Minimum X and Y resolutions
 143 */
 144#define MIN_XRES        64
 145#define MIN_YRES        64
 146
 147