include/media/saa7146_vv.h

   1 #ifndef __SAA7146_VV__
   2 #define __SAA7146_VV__
   3
   4 #include <linux/videodev.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         u8      swap;
  39 };
  40
  41 struct saa7146_standard
  42 {
  43         char          *name;
  44         v4l2_std_id   id;
  45
  46         int v_offset;   /* number of lines of vertical offset before processing */
  47         int v_field;    /* number of lines in a field for HPS to process */
  48
  49         int h_offset;   /* horizontal offset of processing window */
  50         int h_pixels;   /* number of horizontal pixels to process */
  51
  52         int v_max_out;
  53         int h_max_out;
  54 };
  55
  56 /* buffer for one video/vbi frame */
  57 struct saa7146_buf {
  58         /* common v4l buffer stuff -- must be first */
  59         struct videobuf_buffer vb;
  60
  61         /* saa7146 specific */
  62         struct v4l2_pix_format  *fmt;
  63         int (*activate)(struct saa7146_dev *dev,
  64                         struct saa7146_buf *buf,
  65                         struct saa7146_buf *next);
  66
  67         /* page tables */
  68         struct saa7146_pgtable  pt[3];
  69 };
  70
  71 struct saa7146_dmaqueue {
  72         struct saa7146_dev      *dev;
  73         struct saa7146_buf      *curr;
  74         struct list_head        queue;
  75         struct timer_list       timeout;
  76 };
  77
  78 struct saa7146_overlay {
  79         struct saa7146_fh       *fh;
  80         struct v4l2_window      win;
  81         struct v4l2_clip        clips[16];
  82         int                     nclips;
  83 };
  84
  85 /* per open data */
  86 struct saa7146_fh {
  87         struct saa7146_dev      *dev;
  88         /* if this is a vbi or capture open */
  89         enum v4l2_buf_type      type;
  90
  91         /* video overlay */
  92         struct saa7146_overlay  ov;
  93
  94         /* video capture */
  95         struct videobuf_queue   video_q;
  96         struct v4l2_pix_format  video_fmt;
  97
  98         /* vbi capture */
  99         struct videobuf_queue   vbi_q;
 100         struct v4l2_vbi_format  vbi_fmt;
 101         struct timer_list       vbi_read_timeout;
 102
 103         unsigned int resources; /* resource management for device open */
 104 };
 105
 106 #define STATUS_OVERLAY  0x01
 107 #define STATUS_CAPTURE  0x02
 108
 109 struct saa7146_vv
 110 {
 111         int vbi_minor;
 112
 113         /* vbi capture */
 114         struct saa7146_dmaqueue         vbi_q;
 115         /* vbi workaround interrupt queue */
 116         wait_queue_head_t               vbi_wq;
 117         int                             vbi_fieldcount;
 118         struct saa7146_fh               *vbi_streaming;
 119
 120         int video_minor;
 121
 122         int                             video_status;
 123         struct saa7146_fh               *video_fh;
 124
 125         /* video overlay */
 126         struct v4l2_framebuffer         ov_fb;
 127         struct saa7146_format           *ov_fmt;
 128         struct saa7146_overlay          *ov_data;
 129         struct saa7146_fh               *ov_suspend;
 130
 131         /* video capture */
 132         struct saa7146_dmaqueue         video_q;
 133         enum v4l2_field                 last_field;
 134
 135         /* common: fixme? shouldn't this be in saa7146_fh?
 136            (this leads to a more complicated question: shall the driver
 137            store the different settings (for example S_INPUT) for every open
 138            and restore it appropriately, or should all settings be common for
 139            all opens? currently, we do the latter, like all other
 140            drivers do... */
 141         struct saa7146_standard *standard;
 142
 143         int     vflip;
 144         int     hflip;
 145         int     current_hps_source;
 146         int     current_hps_sync;
 147
 148         struct saa7146_dma      d_clipping;     /* pointer to clipping memory */
 149
 150         unsigned int resources; /* resource management for device */
 151 };
 152
 153 #define SAA7146_EXCLUSIVE       0x1
 154 #define SAA7146_BEFORE          0x2
 155 #define SAA7146_AFTER           0x4
 156
 157 struct saa7146_extension_ioctls
 158 {
 159         unsigned int    cmd;
 160         int             flags;
 161 };
 162
 163 /* flags */
 164 #define SAA7146_USE_PORT_B_FOR_VBI      0x2     /* use input port b for vbi hardware bug workaround */
 165
 166 struct saa7146_ext_vv
 167 {
 168         /* informations about the video capabilities of the device */
 169         int     inputs;
 170         int     audios;
 171         u32     capabilities;
 172         int     flags;
 173
 174         /* additionally supported transmission standards */
 175         struct saa7146_standard *stds;
 176         int num_stds;
 177         int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
 178
 179         struct saa7146_extension_ioctls *ioctls;
 180         int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
 181
 182         struct file_operations vbi_fops;
 183 };
 184
 185 struct saa7146_use_ops  {
 186         void (*init)(struct saa7146_dev *, struct saa7146_vv *);
 187         int(*open)(struct saa7146_dev *, struct file *);
 188         void (*release)(struct saa7146_dev *, struct file *);
 189         void (*irq_done)(struct saa7146_dev *, unsigned long status);
 190         ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
 191 };
 192
 193 /* from saa7146_fops.c */
 194 int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type);
 195 int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev);
 196 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
 197 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
 198 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
 199 void saa7146_buffer_timeout(unsigned long data);
 200 void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
 201                                                 struct saa7146_buf *buf);
 202
 203 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
 204 int saa7146_vv_release(struct saa7146_dev* dev);
 205
 206 /* from saa7146_hlp.c */
 207 int saa7146_enable_overlay(struct saa7146_fh *fh);
 208 void saa7146_disable_overlay(struct saa7146_fh *fh);
 209
 210 void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
 211 void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
 212 void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
 213 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
 214
 215 /* from saa7146_video.c */
 216 extern struct saa7146_use_ops saa7146_video_uops;
 217 int saa7146_start_preview(struct saa7146_fh *fh);
 218 int saa7146_stop_preview(struct saa7146_fh *fh);
 219
 220 /* from saa7146_vbi.c */
 221 extern struct saa7146_use_ops saa7146_vbi_uops;
 222
 223 /* resource management functions */
 224 int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
 225 void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
 226
 227 #define RESOURCE_DMA1_HPS       0x1
 228 #define RESOURCE_DMA2_CLP       0x2
 229 #define RESOURCE_DMA3_BRS       0x4
 230
 231 /* saa7146 source inputs */
 232 #define SAA7146_HPS_SOURCE_PORT_A       0x00
 233 #define SAA7146_HPS_SOURCE_PORT_B       0x01
 234 #define SAA7146_HPS_SOURCE_YPB_CPA      0x02
 235 #define SAA7146_HPS_SOURCE_YPA_CPB      0x03
 236
 237 /* sync inputs */
 238 #define SAA7146_HPS_SYNC_PORT_A         0x00
 239 #define SAA7146_HPS_SYNC_PORT_B         0x01
 240
 241 /* some memory sizes */
 242 #define SAA7146_CLIPPING_MEM    (14*PAGE_SIZE)
 243
 244 /* some defines for the various clipping-modes */
 245 #define SAA7146_CLIPPING_RECT           0x4
 246 #define SAA7146_CLIPPING_RECT_INVERTED  0x5
 247 #define SAA7146_CLIPPING_MASK           0x6
 248 #define SAA7146_CLIPPING_MASK_INVERTED  0x7
 249
 250 /* output formats: each entry holds four informations */
 251 #define RGB08_COMPOSED  0x0217 /* composed is used in the sense of "not-planar" */
 252 /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
 253 #define RGB15_COMPOSED  0x0213
 254 #define RGB16_COMPOSED  0x0210
 255 #define RGB24_COMPOSED  0x0201
 256 #define RGB32_COMPOSED  0x0202
 257
 258 #define Y8                      0x0006
 259 #define YUV411_COMPOSED         0x0003
 260 #define YUV422_COMPOSED         0x0000
 261 /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
 262 #define YUV411_DECOMPOSED       0x100b
 263 #define YUV422_DECOMPOSED       0x1009
 264 #define YUV420_DECOMPOSED       0x100a
 265
 266 #define IS_PLANAR(x) (x & 0xf000)
 267
 268 /* misc defines */
 269 #define SAA7146_NO_SWAP         (0x0)
 270 #define SAA7146_TWO_BYTE_SWAP   (0x1)
 271 #define SAA7146_FOUR_BYTE_SWAP  (0x2)
 272
 273 #endif