include/media/saa7146_vv.h

   1 #ifndef __SAA7146_VV__
   2 #define __SAA7146_VV__
   3
   4 #include <linux/videodev2.h>
   5
   6 #include <media/saa7146.h>
   7 #include <media/video-buf.h>
   8
   9 #define MAX_SAA7146_CAPTURE_BUFFERS     32      /* arbitrary */
  10 #define BUFFER_TIMEOUT     (HZ/2)  /* 0.5 seconds */
  11
  12 #define WRITE_RPS0(x) do { \
  13         dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
  14         } while (0);
  15
  16 #define WRITE_RPS1(x) do { \
  17         dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
  18         } while (0);
  19
  20 struct  saa7146_video_dma {
  21         u32 base_odd;
  22         u32 base_even;
  23         u32 prot_addr;
  24         u32 pitch;
  25         u32 base_page;
  26         u32 num_line_byte;
  27 };
  28
  29 #define FORMAT_BYTE_SWAP        0x1
  30 #define FORMAT_IS_PLANAR        0x2
  31
  32 struct saa7146_format {
  33         char    *name;
  34         u32     pixelformat;
  35         u32     trans;
  36         u8      depth;
  37         u8      flags;
  38 };
  39
  40 struct saa7146_standard
  41 {
  42         char          *name;
  43         v4l2_std_id   id;
  44
  45         int v_offset;   /* number of lines of vertical offset before processing */
  46         int v_field;    /* number of lines in a field for HPS to process */
  47
  48         int h_offset;   /* horizontal offset of processing window */
  49         int h_pixels;   /* number of horizontal pixels to process */
  50
  51         int v_max_out;
  52         int h_max_out;
  53 };
  54
  55 /* buffer for one video/vbi frame */
  56 struct saa7146_buf {
  57         /* common v4l buffer stuff -- must be first */
  58         struct videobuf_buffer vb;
  59
  60         /* saa7146 specific */
  61         struct v4l2_pix_format  *fmt;
  62         int (*activate)(struct saa7146_dev *dev,
  63                         struct saa7146_buf *buf,
  64                         struct saa7146_buf *next);
  65
  66         /* page tables */
  67         struct saa7146_pgtable  pt[3];
  68 };
  69
  70 struct saa7146_dmaqueue {
  71         struct saa7146_dev      *dev;
  72         struct saa7146_buf      *curr;
  73         struct list_head        queue;
  74         struct timer_list       timeout;
  75 };
  76
  77 struct saa7146_overlay {
  78         struct saa7146_fh       *fh;
  79         struct v4l2_window      win;
  80         struct v4l2_clip        clips[16];
  81         int                     nclips;
  82 };
  83
  84 /* per open data */
  85 struct saa7146_fh {
  86         struct saa7146_dev      *dev;
  87         /* if this is a vbi or capture open */
  88         enum v4l2_buf_type      type;
  89
  90         /* video overlay */
  91         struct saa7146_overlay  ov;
  92
  93         /* video capture */
  94         struct videobuf_queue   video_q;
  95         struct v4l2_pix_format  video_fmt;
  96
  97         /* vbi capture */
  98         struct videobuf_queue   vbi_q;
  99         struct v4l2_vbi_format  vbi_fmt;
 100         struct timer_list       vbi_read_timeout;
 101
 102         unsigned int resources; /* resource management for device open */
 103 };
 104
 105 #define STATUS_OVERLAY  0x01
 106 #define STATUS_CAPTURE  0x02
 107
 108 struct saa7146_vv
 109 {
 110         int vbi_minor;
 111
 112         /* vbi capture */
 113         struct saa7146_dmaqueue         vbi_q;
 114         /* vbi workaround interrupt queue */
 115         wait_queue_head_t               vbi_wq;
 116         int                             vbi_fieldcount;
 117         struct saa7146_fh               *vbi_streaming;
 118
 119         int video_minor;
 120
 121         int                             video_status;
 122         struct saa7146_fh               *video_fh;
 123
 124         /* video overlay */
 125         struct v4l2_framebuffer         ov_fb;
 126         struct saa7146_format           *ov_fmt;
 127         struct saa7146_overlay          *ov_data;
 128         struct saa7146_fh               *ov_suspend;
 129
 130         /* video capture */
 131         struct saa7146_dmaqueue         video_q;
 132         enum v4l2_field                 last_field;
 133
 134         /* common: fixme? shouldn't this be in saa7146_fh?
 135            (this leads to a more complicated question: shall the driver
 136            store the different settings (for example S_INPUT) for every open
 137            and restore it appropriately, or should all settings be common for
 138            all opens? currently, we do the latter, like all other
 139            drivers do... */
 140         struct saa7146_standard *standard;
 141
 142         int     vflip;
 143         int     hflip;
 144         int     current_hps_source;
 145         int     current_hps_sync;
 146
 147         struct saa7146_dma      d_clipping;     /* pointer to clipping memory */
 148
 149         unsigned int resources; /* resource management for device */
 150 };
 151
 152 #define SAA7146_EXCLUSIVE       0x1
 153 #define SAA7146_BEFORE          0x2
 154 #define SAA7146_AFTER           0x4
 155
 156 struct saa7146_extension_ioctls
 157 {
 158         unsigned int    cmd;
 159         int             flags;
 160 };
 161
 162 /* flags */
 163 #define SAA7146_USE_PORT_B_FOR_VBI      0x2     /* use input port b for vbi hardware bug workaround */
 164
 165 struct saa7146_ext_vv
 166 {
 167         /* informations about the video capabilities of the device */
 168         int     inputs;
 169         int     audios;
 170         u32     capabilities;
 171         int     flags;
 172
 173         /* additionally supported transmission standards */
 174         struct saa7146_standard *stds;
 175         int num_stds;
 176         int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
 177
 178         struct saa7146_extension_ioctls *ioctls;
 179         int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
 180 };
 181
 182 struct saa7146_use_ops  {
 183         void (*init)(struct saa7146_dev *, struct saa7146_vv *);
 184         int(*open)(struct saa7146_dev *, struct file *);
 185         void (*release)(struct saa7146_dev *, struct file *);
 186         void (*irq_done)(struct saa7146_dev *, unsigned long status);
 187         ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
 188 };
 189
 190 /* from saa7146_fops.c */
 191 int saa7146_register_device(struct video_device *vid, struct saa7146_dev* dev, char *name, int type);
 192 int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev* dev);
 193 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
 194 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
 195 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
 196 void saa7146_buffer_timeout(unsigned long data);
 197 void saa7146_dma_free(struct saa7146_dev *dev,struct saa7146_buf *buf);
 198
 199 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
 200 int saa7146_vv_release(struct saa7146_dev* dev);
 201
 202 /* from saa7146_hlp.c */
 203 int saa7146_enable_overlay(struct saa7146_fh *fh);
 204 void saa7146_disable_overlay(struct saa7146_fh *fh);
 205
 206 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
 207 void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
 208 void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
 209 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
 210
 211 /* from saa7146_video.c */
 212 extern struct saa7146_use_ops saa7146_video_uops;
 213 int saa7146_start_preview(struct saa7146_fh *fh);
 214 int saa7146_stop_preview(struct saa7146_fh *fh);
 215
 216 /* from saa7146_vbi.c */
 217 extern struct saa7146_use_ops saa7146_vbi_uops;
 218
 219 /* resource management functions */
 220 int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
 221 int saa7146_res_check(struct saa7146_fh *fh, unsigned int bit);
 222 int saa7146_res_locked(struct saa7146_dev *dev, unsigned int bit);
 223 void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
 224
 225 #define RESOURCE_DMA1_HPS       0x1
 226 #define RESOURCE_DMA2_CLP       0x2
 227 #define RESOURCE_DMA3_BRS       0x4
 228
 229 /* saa7146 source inputs */
 230 #define SAA7146_HPS_SOURCE_PORT_A       0x00
 231 #define SAA7146_HPS_SOURCE_PORT_B       0x01
 232 #define SAA7146_HPS_SOURCE_YPB_CPA      0x02
 233 #define SAA7146_HPS_SOURCE_YPA_CPB      0x03
 234
 235 /* sync inputs */
 236 #define SAA7146_HPS_SYNC_PORT_A         0x00
 237 #define SAA7146_HPS_SYNC_PORT_B         0x01
 238
 239 /* some memory sizes */
 240 #define SAA7146_CLIPPING_MEM    (14*PAGE_SIZE)
 241
 242 /* some defines for the various clipping-modes */
 243 #define SAA7146_CLIPPING_RECT           0x4
 244 #define SAA7146_CLIPPING_RECT_INVERTED  0x5
 245 #define SAA7146_CLIPPING_MASK           0x6
 246 #define SAA7146_CLIPPING_MASK_INVERTED  0x7
 247
 248 /* output formats: each entry holds four informations */
 249 #define RGB08_COMPOSED  0x0217 /* composed is used in the sense of "not-planar" */
 250 /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
 251 #define RGB15_COMPOSED  0x0213
 252 #define RGB16_COMPOSED  0x0210
 253 #define RGB24_COMPOSED  0x0201
 254 #define RGB32_COMPOSED  0x0202
 255
 256 #define Y8                      0x0006
 257 #define YUV411_COMPOSED         0x0003
 258 #define YUV422_COMPOSED         0x0000
 259 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
 260 #define YUV411_DECOMPOSED       0x100b
 261 #define YUV422_DECOMPOSED       0x1009
 262 #define YUV420_DECOMPOSED       0x100a
 263
 264 #define IS_PLANAR(x) (x & 0xf000)
 265
 266 /* misc defines */
 267 #define SAA7146_NO_SWAP         (0x0)
 268 #define SAA7146_TWO_BYTE_SWAP   (0x1)
 269 #define SAA7146_FOUR_BYTE_SWAP  (0x2)
 270
 271 #endif