drivers/video/pxafb.h

   1 #ifndef __PXAFB_H__
   2 #define __PXAFB_H__
   3
   4 /*
   5  * linux/drivers/video/pxafb.h
   6  *    -- Intel PXA250/210 LCD Controller Frame Buffer Device
   7  *
   8  *  Copyright (C) 1999 Eric A. Thomas.
   9  *  Copyright (C) 2004 Jean-Frederic Clere.
  10  *  Copyright (C) 2004 Ian Campbell.
  11  *  Copyright (C) 2004 Jeff Lackey.
  12  *   Based on sa1100fb.c Copyright (C) 1999 Eric A. Thomas
  13  *  which in turn is
  14  *   Based on acornfb.c Copyright (C) Russell King.
  15  *
  16  *  2001-08-03: Cliff Brake <cbrake@acclent.com>
  17  *       - ported SA1100 code to PXA
  18  *
  19  * This file is subject to the terms and conditions of the GNU General Public
  20  * License.  See the file COPYING in the main directory of this archive
  21  * for more details.
  22  */
  23
  24 /* PXA LCD DMA descriptor */
  25 struct pxafb_dma_descriptor {
  26         unsigned int fdadr;
  27         unsigned int fsadr;
  28         unsigned int fidr;
  29         unsigned int ldcmd;
  30 };
  31
  32 enum {
  33         PAL_NONE        = -1,
  34         PAL_BASE        = 0,
  35         PAL_OV1         = 1,
  36         PAL_OV2         = 2,
  37         PAL_MAX,
  38 };
  39
  40 enum {
  41         DMA_BASE        = 0,
  42         DMA_UPPER       = 0,
  43         DMA_LOWER       = 1,
  44         DMA_OV1         = 1,
  45         DMA_OV2_Y       = 2,
  46         DMA_OV2_Cb      = 3,
  47         DMA_OV2_Cr      = 4,
  48         DMA_CURSOR      = 5,
  49         DMA_CMD         = 6,
  50         DMA_MAX,
  51 };
  52
  53 /* maximum palette size - 256 entries, each 4 bytes long */
  54 #define PALETTE_SIZE    (256 * 4)
  55 #define CMD_BUFF_SIZE   (1024 * 50)
  56
  57 struct pxafb_dma_buff {
  58         unsigned char palette[PAL_MAX * PALETTE_SIZE];
  59         uint16_t cmd_buff[CMD_BUFF_SIZE];
  60         struct pxafb_dma_descriptor pal_desc[PAL_MAX];
  61         struct pxafb_dma_descriptor dma_desc[DMA_MAX];
  62 };
  63
  64 struct pxafb_info {
  65         struct fb_info          fb;
  66         struct device           *dev;
  67         struct clk              *clk;
  68
  69         void __iomem            *mmio_base;
  70
  71         struct pxafb_dma_buff   *dma_buff;
  72         size_t                  dma_buff_size;
  73         dma_addr_t              dma_buff_phys;
  74         dma_addr_t              fdadr[DMA_MAX];
  75
  76         void __iomem            *video_mem;     /* virtual address of frame buffer */
  77         unsigned long           video_mem_phys; /* physical address of frame buffer */
  78         size_t                  video_mem_size; /* size of the frame buffer */
  79         u16 *                   palette_cpu;    /* virtual address of palette memory */
  80         u_int                   palette_size;
  81
  82         u_int                   lccr0;
  83         u_int                   lccr3;
  84         u_int                   lccr4;
  85         u_int                   cmap_inverse:1,
  86                                 cmap_static:1,
  87                                 unused:30;
  88
  89         u_int                   reg_lccr0;
  90         u_int                   reg_lccr1;
  91         u_int                   reg_lccr2;
  92         u_int                   reg_lccr3;
  93         u_int                   reg_lccr4;
  94         u_int                   reg_cmdcr;
  95
  96         unsigned long   hsync_time;
  97
  98         volatile u_char         state;
  99         volatile u_char         task_state;
 100         struct mutex            ctrlr_lock;
 101         wait_queue_head_t       ctrlr_wait;
 102         struct work_struct      task;
 103
 104         struct completion       disable_done;
 105
 106 #ifdef CONFIG_FB_PXA_SMARTPANEL
 107         uint16_t                *smart_cmds;
 108         size_t                  n_smart_cmds;
 109         struct completion       command_done;
 110         struct completion       refresh_done;
 111         struct task_struct      *smart_thread;
 112 #endif
 113
 114 #ifdef CONFIG_CPU_FREQ
 115         struct notifier_block   freq_transition;
 116         struct notifier_block   freq_policy;
 117 #endif
 118
 119         void (*lcd_power)(int, struct fb_var_screeninfo *);
 120         void (*backlight_power)(int);
 121 };
 122
 123 #define TO_INF(ptr,member) container_of(ptr,struct pxafb_info,member)
 124
 125 /*
 126  * These are the actions for set_ctrlr_state
 127  */
 128 #define C_DISABLE               (0)
 129 #define C_ENABLE                (1)
 130 #define C_DISABLE_CLKCHANGE     (2)
 131 #define C_ENABLE_CLKCHANGE      (3)
 132 #define C_REENABLE              (4)
 133 #define C_DISABLE_PM            (5)
 134 #define C_ENABLE_PM             (6)
 135 #define C_STARTUP               (7)
 136
 137 #define PXA_NAME        "PXA"
 138
 139 /*
 140  * Minimum X and Y resolutions
 141  */
 142 #define MIN_XRES        64
 143 #define MIN_YRES        64
 144
 145 #endif /* __PXAFB_H__ */