drivers/video/fbdev/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 #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
  23 /* Shadows for LCD controller registers */
  24 struct sa1100fb_lcd_reg {
  25         unsigned long lccr0;
  26         unsigned long lccr1;
  27         unsigned long lccr2;
  28         unsigned long lccr3;
  29 };
  30
  31 struct sa1100fb_info {
  32         struct fb_info          fb;
  33         struct device           *dev;
  34         const struct sa1100fb_rgb *rgb[NR_RGB];
  35         void __iomem            *base;
  36
  37         /*
  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
  54         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;
  61         struct mutex            ctrlr_lock;
  62         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
  69
  70         const struct sa1100fb_mach_info *inf;
  71         struct clk *clk;
  72 };
  73
  74 #define TO_INF(ptr,member)      container_of(ptr,struct sa1100fb_info,member)
  75
  76 #define SA1100_PALETTE_MODE_VAL(bpp)    (((bpp) & 0x018) << 9)
  77
  78 /*
  79  * These are the actions for set_ctrlr_state
  80  */
  81 #define C_DISABLE               (0)
  82 #define C_ENABLE                (1)
  83 #define C_DISABLE_CLKCHANGE     (2)
  84 #define C_ENABLE_CLKCHANGE      (3)
  85 #define C_REENABLE              (4)
  86 #define C_DISABLE_PM            (5)
  87 #define C_ENABLE_PM             (6)
  88 #define C_STARTUP               (7)
  89
  90 #define SA1100_NAME     "SA1100"
  91
  92 /*
  93  * Minimum X and Y resolutions
  94  */
  95 #define MIN_XRES        64
  96 #define MIN_YRES        64
  97