linux/include/media/saa7146_vv.h
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   1#ifndef __SAA7146_VV__
   2#define __SAA7146_VV__
   3
   4#include <media/v4l2-common.h>
   5#include <media/v4l2-ioctl.h>
   6#include <media/saa7146.h>
   7#include <media/videobuf-dma-sg.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
  20struct  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
  32struct saa7146_format {
  33        char    *name;
  34        u32     pixelformat;
  35        u32     trans;
  36        u8      depth;
  37        u8      flags;
  38        u8      swap;
  39};
  40
  41struct 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 */
  57struct 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
  71struct saa7146_dmaqueue {
  72        struct saa7146_dev      *dev;
  73        struct saa7146_buf      *curr;
  74        struct list_head        queue;
  75        struct timer_list       timeout;
  76};
  77
  78struct 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 */
  86struct 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
 109struct saa7146_vv
 110{
 111        /* vbi capture */
 112        struct saa7146_dmaqueue         vbi_q;
 113        /* vbi workaround interrupt queue */
 114        wait_queue_head_t               vbi_wq;
 115        int                             vbi_fieldcount;
 116        struct saa7146_fh               *vbi_streaming;
 117
 118        int                             video_status;
 119        struct saa7146_fh               *video_fh;
 120
 121        /* video overlay */
 122        struct v4l2_framebuffer         ov_fb;
 123        struct saa7146_format           *ov_fmt;
 124        struct saa7146_overlay          *ov_data;
 125        struct saa7146_fh               *ov_suspend;
 126
 127        /* video capture */
 128        struct saa7146_dmaqueue         video_q;
 129        enum v4l2_field                 last_field;
 130
 131        /* common: fixme? shouldn't this be in saa7146_fh?
 132           (this leads to a more complicated question: shall the driver
 133           store the different settings (for example S_INPUT) for every open
 134           and restore it appropriately, or should all settings be common for
 135           all opens? currently, we do the latter, like all other
 136           drivers do... */
 137        struct saa7146_standard *standard;
 138
 139        int     vflip;
 140        int     hflip;
 141        int     current_hps_source;
 142        int     current_hps_sync;
 143
 144        struct saa7146_dma      d_clipping;     /* pointer to clipping memory */
 145
 146        unsigned int resources; /* resource management for device */
 147};
 148
 149/* flags */
 150#define SAA7146_USE_PORT_B_FOR_VBI      0x2     /* use input port b for vbi hardware bug workaround */
 151
 152struct saa7146_ext_vv
 153{
 154        /* informations about the video capabilities of the device */
 155        int     inputs;
 156        int     audios;
 157        u32     capabilities;
 158        int     flags;
 159
 160        /* additionally supported transmission standards */
 161        struct saa7146_standard *stds;
 162        int num_stds;
 163        int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
 164
 165        /* the extension can override this */
 166        struct v4l2_ioctl_ops ops;
 167        /* pointer to the saa7146 core ops */
 168        const struct v4l2_ioctl_ops *core_ops;
 169
 170        struct v4l2_file_operations vbi_fops;
 171};
 172
 173struct saa7146_use_ops  {
 174        void (*init)(struct saa7146_dev *, struct saa7146_vv *);
 175        int(*open)(struct saa7146_dev *, struct file *);
 176        void (*release)(struct saa7146_dev *, struct file *);
 177        void (*irq_done)(struct saa7146_dev *, unsigned long status);
 178        ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
 179};
 180
 181/* from saa7146_fops.c */
 182int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type);
 183int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev);
 184void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
 185void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
 186int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
 187void saa7146_buffer_timeout(unsigned long data);
 188void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
 189                                                struct saa7146_buf *buf);
 190
 191int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
 192int saa7146_vv_release(struct saa7146_dev* dev);
 193
 194/* from saa7146_hlp.c */
 195int saa7146_enable_overlay(struct saa7146_fh *fh);
 196void saa7146_disable_overlay(struct saa7146_fh *fh);
 197
 198void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
 199void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
 200void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
 201void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
 202
 203/* from saa7146_video.c */
 204extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
 205extern struct saa7146_use_ops saa7146_video_uops;
 206int saa7146_start_preview(struct saa7146_fh *fh);
 207int saa7146_stop_preview(struct saa7146_fh *fh);
 208long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
 209
 210/* from saa7146_vbi.c */
 211extern struct saa7146_use_ops saa7146_vbi_uops;
 212
 213/* resource management functions */
 214int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
 215void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
 216
 217#define RESOURCE_DMA1_HPS       0x1
 218#define RESOURCE_DMA2_CLP       0x2
 219#define RESOURCE_DMA3_BRS       0x4
 220
 221/* saa7146 source inputs */
 222#define SAA7146_HPS_SOURCE_PORT_A       0x00
 223#define SAA7146_HPS_SOURCE_PORT_B       0x01
 224#define SAA7146_HPS_SOURCE_YPB_CPA      0x02
 225#define SAA7146_HPS_SOURCE_YPA_CPB      0x03
 226
 227/* sync inputs */
 228#define SAA7146_HPS_SYNC_PORT_A         0x00
 229#define SAA7146_HPS_SYNC_PORT_B         0x01
 230
 231/* some memory sizes */
 232/* max. 16 clipping rectangles */
 233#define SAA7146_CLIPPING_MEM    (16 * 4 * sizeof(u32))
 234
 235/* some defines for the various clipping-modes */
 236#define SAA7146_CLIPPING_RECT           0x4
 237#define SAA7146_CLIPPING_RECT_INVERTED  0x5
 238#define SAA7146_CLIPPING_MASK           0x6
 239#define SAA7146_CLIPPING_MASK_INVERTED  0x7
 240
 241/* output formats: each entry holds four informations */
 242#define RGB08_COMPOSED  0x0217 /* composed is used in the sense of "not-planar" */
 243/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
 244#define RGB15_COMPOSED  0x0213
 245#define RGB16_COMPOSED  0x0210
 246#define RGB24_COMPOSED  0x0201
 247#define RGB32_COMPOSED  0x0202
 248
 249#define Y8                      0x0006
 250#define YUV411_COMPOSED         0x0003
 251#define YUV422_COMPOSED         0x0000
 252/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
 253#define YUV411_DECOMPOSED       0x100b
 254#define YUV422_DECOMPOSED       0x1009
 255#define YUV420_DECOMPOSED       0x100a
 256
 257#define IS_PLANAR(x) (x & 0xf000)
 258
 259/* misc defines */
 260#define SAA7146_NO_SWAP         (0x0)
 261#define SAA7146_TWO_BYTE_SWAP   (0x1)
 262#define SAA7146_FOUR_BYTE_SWAP  (0x2)
 263
 264#endif
 265
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