release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/media/video/omap/omap_voutdef.h

   1 /*
   2  * omap_voutdef.h
   3  *
   4  * Copyright (C) 2010 Texas Instruments.
   5  *
   6  * This file is licensed under the terms of the GNU General Public License
   7  * version 2. This program is licensed "as is" without any warranty of any
   8  * kind, whether express or implied.
   9  */
  10
  11 #ifndef OMAP_VOUTDEF_H
  12 #define OMAP_VOUTDEF_H
  13
  14 #include <plat/display.h>
  15
  16 #define YUYV_BPP        2
  17 #define RGB565_BPP      2
  18 #define RGB24_BPP       3
  19 #define RGB32_BPP       4
  20 #define TILE_SIZE       32
  21 #define YUYV_VRFB_BPP   2
  22 #define RGB_VRFB_BPP    1
  23 #define MAX_CID         3
  24 #define MAC_VRFB_CTXS   4
  25 #define MAX_VOUT_DEV    2
  26 #define MAX_OVLS        3
  27 #define MAX_DISPLAYS    3
  28 #define MAX_MANAGERS    3
  29
  30 /* Enum for Rotation
  31  * DSS understands rotation in 0, 1, 2, 3 context
  32  * while V4L2 driver understands it as 0, 90, 180, 270
  33  */
  34 enum dss_rotation {
  35         dss_rotation_0_degree   = 0,
  36         dss_rotation_90_degree  = 1,
  37         dss_rotation_180_degree = 2,
  38         dss_rotation_270_degree = 3,
  39 };
  40 /*
  41  * This structure is used to store the DMA transfer parameters
  42  * for VRFB hidden buffer
  43  */
  44 struct vid_vrfb_dma {
  45         int dev_id;
  46         int dma_ch;
  47         int req_status;
  48         int tx_status;
  49         wait_queue_head_t wait;
  50 };
  51
  52 struct omapvideo_info {
  53         int id;
  54         int num_overlays;
  55         struct omap_overlay *overlays[MAX_OVLS];
  56 };
  57
  58 struct omap2video_device {
  59         struct mutex  mtx;
  60
  61         int state;
  62
  63         struct v4l2_device v4l2_dev;
  64         struct omap_vout_device *vouts[MAX_VOUT_DEV];
  65
  66         int num_displays;
  67         struct omap_dss_device *displays[MAX_DISPLAYS];
  68         int num_overlays;
  69         struct omap_overlay *overlays[MAX_OVLS];
  70         int num_managers;
  71         struct omap_overlay_manager *managers[MAX_MANAGERS];
  72 };
  73
  74 /* per-device data structure */
  75 struct omap_vout_device {
  76
  77         struct omapvideo_info vid_info;
  78         struct video_device *vfd;
  79         struct omap2video_device *vid_dev;
  80         int vid;
  81         int opened;
  82
  83         /* we don't allow to change image fmt/size once buffer has
  84          * been allocated
  85          */
  86         int buffer_allocated;
  87         /* allow to reuse previously allocated buffer which is big enough */
  88         int buffer_size;
  89         /* keep buffer info across opens */
  90         unsigned long buf_virt_addr[VIDEO_MAX_FRAME];
  91         unsigned long buf_phy_addr[VIDEO_MAX_FRAME];
  92         enum omap_color_mode dss_mode;
  93
  94         /* we don't allow to request new buffer when old buffers are
  95          * still mmaped
  96          */
  97         int mmap_count;
  98
  99         spinlock_t vbq_lock;            /* spinlock for videobuf queues */
 100         unsigned long field_count;      /* field counter for videobuf_buffer */
 101
 102         /* non-NULL means streaming is in progress. */
 103         bool streaming;
 104
 105         struct v4l2_pix_format pix;
 106         struct v4l2_rect crop;
 107         struct v4l2_window win;
 108         struct v4l2_framebuffer fbuf;
 109
 110         /* Lock to protect the shared data structures in ioctl */
 111         struct mutex lock;
 112
 113         /* V4L2 control structure for different control id */
 114         struct v4l2_control control[MAX_CID];
 115         enum dss_rotation rotation;
 116         bool mirror;
 117         int flicker_filter;
 118         /* V4L2 control structure for different control id */
 119
 120         int bpp; /* bytes per pixel */
 121         int vrfb_bpp; /* bytes per pixel with respect to VRFB */
 122
 123         struct vid_vrfb_dma vrfb_dma_tx;
 124         unsigned int smsshado_phy_addr[MAC_VRFB_CTXS];
 125         unsigned int smsshado_virt_addr[MAC_VRFB_CTXS];
 126         struct vrfb vrfb_context[MAC_VRFB_CTXS];
 127         bool vrfb_static_allocation;
 128         unsigned int smsshado_size;
 129         unsigned char pos;
 130
 131         int ps, vr_ps, line_length, first_int, field_id;
 132         enum v4l2_memory memory;
 133         struct videobuf_buffer *cur_frm, *next_frm;
 134         struct list_head dma_queue;
 135         u8 *queued_buf_addr[VIDEO_MAX_FRAME];
 136         u32 cropped_offset;
 137         s32 tv_field1_offset;
 138         void *isr_handle;
 139
 140         /* Buffer queue variables */
 141         struct omap_vout_device *vout;
 142         enum v4l2_buf_type type;
 143         struct videobuf_queue vbq;
 144         int io_allowed;
 145
 146 };
 147 #endif  /* ifndef OMAP_VOUTDEF_H */