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 /* NOTE: the palette and frame dma descriptors are doubled to allow
  58  * the 2nd set for branch settings (FBRx)
  59  */
  60 struct pxafb_dma_buff {
  61         unsigned char palette[PAL_MAX * PALETTE_SIZE];
  62         uint16_t cmd_buff[CMD_BUFF_SIZE];
  63         struct pxafb_dma_descriptor pal_desc[PAL_MAX * 2];
  64         struct pxafb_dma_descriptor dma_desc[DMA_MAX * 2];
  65 };
  66
  67 enum {
  68         OVERLAY1,
  69         OVERLAY2,
  70 };
  71
  72 enum {
  73         OVERLAY_FORMAT_RGB = 0,
  74         OVERLAY_FORMAT_YUV444_PACKED,
  75         OVERLAY_FORMAT_YUV444_PLANAR,
  76         OVERLAY_FORMAT_YUV422_PLANAR,
  77         OVERLAY_FORMAT_YUV420_PLANAR,
  78 };
  79
  80 #define NONSTD_TO_XPOS(x)       (((x) >> 0)  & 0x3ff)
  81 #define NONSTD_TO_YPOS(x)       (((x) >> 10) & 0x3ff)
  82 #define NONSTD_TO_PFOR(x)       (((x) >> 20) & 0x7)
  83
  84 struct pxafb_layer;
  85
  86 struct pxafb_layer_ops {
  87         void (*enable)(struct pxafb_layer *);
  88         void (*disable)(struct pxafb_layer *);
  89         void (*setup)(struct pxafb_layer *);
  90 };
  91
  92 struct pxafb_layer {
  93         struct fb_info          fb;
  94         int                     id;
  95         atomic_t                usage;
  96         uint32_t                control[2];
  97
  98         struct pxafb_layer_ops  *ops;
  99
 100         void __iomem            *video_mem;
 101         unsigned long           video_mem_phys;
 102         size_t                  video_mem_size;
 103         struct completion       branch_done;
 104
 105         struct pxafb_info       *fbi;
 106 };
 107
 108 struct pxafb_info {
 109         struct fb_info          fb;
 110         struct device           *dev;
 111         struct clk              *clk;
 112
 113         void __iomem            *mmio_base;
 114
 115         struct pxafb_dma_buff   *dma_buff;
 116         size_t                  dma_buff_size;
 117         dma_addr_t              dma_buff_phys;
 118         dma_addr_t              fdadr[DMA_MAX * 2];
 119
 120         void __iomem            *video_mem;     /* virtual address of frame buffer */
 121         unsigned long           video_mem_phys; /* physical address of frame buffer */
 122         size_t                  video_mem_size; /* size of the frame buffer */
 123         u16 *                   palette_cpu;    /* virtual address of palette memory */
 124         u_int                   palette_size;
 125
 126         u_int                   lccr0;
 127         u_int                   lccr3;
 128         u_int                   lccr4;
 129         u_int                   cmap_inverse:1,
 130                                 cmap_static:1,
 131                                 unused:30;
 132
 133         u_int                   reg_lccr0;
 134         u_int                   reg_lccr1;
 135         u_int                   reg_lccr2;
 136         u_int                   reg_lccr3;
 137         u_int                   reg_lccr4;
 138         u_int                   reg_cmdcr;
 139
 140         unsigned long   hsync_time;
 141
 142         volatile u_char         state;
 143         volatile u_char         task_state;
 144         struct mutex            ctrlr_lock;
 145         wait_queue_head_t       ctrlr_wait;
 146         struct work_struct      task;
 147
 148         struct completion       disable_done;
 149
 150 #ifdef CONFIG_FB_PXA_SMARTPANEL
 151         uint16_t                *smart_cmds;
 152         size_t                  n_smart_cmds;
 153         struct completion       command_done;
 154         struct completion       refresh_done;
 155         struct task_struct      *smart_thread;
 156 #endif
 157
 158 #ifdef CONFIG_FB_PXA_OVERLAY
 159         struct pxafb_layer      overlay[2];
 160 #endif
 161
 162 #ifdef CONFIG_CPU_FREQ
 163         struct notifier_block   freq_transition;
 164         struct notifier_block   freq_policy;
 165 #endif
 166
 167         void (*lcd_power)(int, struct fb_var_screeninfo *);
 168         void (*backlight_power)(int);
 169 };
 170
 171 #define TO_INF(ptr,member) container_of(ptr,struct pxafb_info,member)
 172
 173 /*
 174  * These are the actions for set_ctrlr_state
 175  */
 176 #define C_DISABLE               (0)
 177 #define C_ENABLE                (1)
 178 #define C_DISABLE_CLKCHANGE     (2)
 179 #define C_ENABLE_CLKCHANGE      (3)
 180 #define C_REENABLE              (4)
 181 #define C_DISABLE_PM            (5)
 182 #define C_ENABLE_PM             (6)
 183 #define C_STARTUP               (7)
 184
 185 #define PXA_NAME        "PXA"
 186
 187 /*
 188  * Minimum X and Y resolutions
 189  */
 190 #define MIN_XRES        64
 191 #define MIN_YRES        64
 192
 193 /* maximum X and Y resolutions - note these are limits from the register
 194  * bits length instead of the real ones
 195  */
 196 #define MAX_XRES        1024
 197 #define MAX_YRES        1024
 198
 199 #endif /* __PXAFB_H__ */