linux/include/media/drv-intf/saa7146_vv.h
<<
>>
Prefs 
   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __SAA7146_VV__
   3#define __SAA7146_VV__
   4
   5#include <media/v4l2-common.h>
   6#include <media/v4l2-ioctl.h>
   7#include <media/v4l2-fh.h>
   8#include <media/drv-intf/saa7146.h>
   9#include <media/videobuf-dma-sg.h>
  10
  11#define MAX_SAA7146_CAPTURE_BUFFERS     32      /* arbitrary */
  12#define BUFFER_TIMEOUT     (HZ/2)  /* 0.5 seconds */
  13
  14#define WRITE_RPS0(x) do { \
  15        dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
  16        } while (0);
  17
  18#define WRITE_RPS1(x) do { \
  19        dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
  20        } while (0);
  21
  22struct  saa7146_video_dma {
  23        u32 base_odd;
  24        u32 base_even;
  25        u32 prot_addr;
  26        u32 pitch;
  27        u32 base_page;
  28        u32 num_line_byte;
  29};
  30
  31#define FORMAT_BYTE_SWAP        0x1
  32#define FORMAT_IS_PLANAR        0x2
  33
  34struct saa7146_format {
  35        char    *name;
  36        u32     pixelformat;
  37        u32     trans;
  38        u8      depth;
  39        u8      flags;
  40        u8      swap;
  41};
  42
  43struct saa7146_standard
  44{
  45        char          *name;
  46        v4l2_std_id   id;
  47
  48        int v_offset;   /* number of lines of vertical offset before processing */
  49        int v_field;    /* number of lines in a field for HPS to process */
  50
  51        int h_offset;   /* horizontal offset of processing window */
  52        int h_pixels;   /* number of horizontal pixels to process */
  53
  54        int v_max_out;
  55        int h_max_out;
  56};
  57
  58/* buffer for one video/vbi frame */
  59struct saa7146_buf {
  60        /* common v4l buffer stuff -- must be first */
  61        struct videobuf_buffer vb;
  62
  63        /* saa7146 specific */
  64        struct v4l2_pix_format  *fmt;
  65        int (*activate)(struct saa7146_dev *dev,
  66                        struct saa7146_buf *buf,
  67                        struct saa7146_buf *next);
  68
  69        /* page tables */
  70        struct saa7146_pgtable  pt[3];
  71};
  72
  73struct saa7146_dmaqueue {
  74        struct saa7146_dev      *dev;
  75        struct saa7146_buf      *curr;
  76        struct list_head        queue;
  77        struct timer_list       timeout;
  78};
  79
  80struct saa7146_overlay {
  81        struct saa7146_fh       *fh;
  82        struct v4l2_window      win;
  83        struct v4l2_clip        clips[16];
  84        int                     nclips;
  85};
  86
  87/* per open data */
  88struct saa7146_fh {
  89        /* Must be the first field! */
  90        struct v4l2_fh          fh;
  91        struct saa7146_dev      *dev;
  92
  93        /* video capture */
  94        struct videobuf_queue   video_q;
  95
  96        /* vbi capture */
  97        struct videobuf_queue   vbi_q;
  98
  99        unsigned int resources; /* resource management for device open */
 100};
 101
 102#define STATUS_OVERLAY  0x01
 103#define STATUS_CAPTURE  0x02
 104
 105struct saa7146_vv
 106{
 107        /* vbi capture */
 108        struct saa7146_dmaqueue         vbi_dmaq;
 109        struct v4l2_vbi_format          vbi_fmt;
 110        struct timer_list               vbi_read_timeout;
 111        struct file                     *vbi_read_timeout_file;
 112        /* vbi workaround interrupt queue */
 113        wait_queue_head_t               vbi_wq;
 114        int                             vbi_fieldcount;
 115        struct saa7146_fh               *vbi_streaming;
 116
 117        int                             video_status;
 118        struct saa7146_fh               *video_fh;
 119
 120        /* video overlay */
 121        struct saa7146_overlay          ov;
 122        struct v4l2_framebuffer         ov_fb;
 123        struct saa7146_format           *ov_fmt;
 124        struct saa7146_fh               *ov_suspend;
 125
 126        /* video capture */
 127        struct saa7146_dmaqueue         video_dmaq;
 128        struct v4l2_pix_format          video_fmt;
 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        /* information 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 vid_ops;
 167        struct v4l2_ioctl_ops vbi_ops;
 168        /* pointer to the saa7146 core ops */
 169        const struct v4l2_ioctl_ops *core_ops;
 170
 171        struct v4l2_file_operations vbi_fops;
 172};
 173
 174struct saa7146_use_ops  {
 175        void (*init)(struct saa7146_dev *, struct saa7146_vv *);
 176        int(*open)(struct saa7146_dev *, struct file *);
 177        void (*release)(struct saa7146_dev *, struct file *);
 178        void (*irq_done)(struct saa7146_dev *, unsigned long status);
 179        ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
 180};
 181
 182/* from saa7146_fops.c */
 183int saa7146_register_device(struct video_device *vid, struct saa7146_dev *dev, char *name, int type);
 184int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev *dev);
 185void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
 186void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
 187int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
 188void saa7146_buffer_timeout(struct timer_list *t);
 189void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
 190                                                struct saa7146_buf *buf);
 191
 192int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
 193int saa7146_vv_release(struct saa7146_dev* dev);
 194
 195/* from saa7146_hlp.c */
 196int saa7146_enable_overlay(struct saa7146_fh *fh);
 197void saa7146_disable_overlay(struct saa7146_fh *fh);
 198
 199void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
 200void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
 201void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
 202void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
 203
 204/* from saa7146_video.c */
 205extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
 206extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
 207extern const struct saa7146_use_ops saa7146_video_uops;
 208int saa7146_start_preview(struct saa7146_fh *fh);
 209int saa7146_stop_preview(struct saa7146_fh *fh);
 210long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
 211int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
 212
 213/* from saa7146_vbi.c */
 214extern const struct saa7146_use_ops saa7146_vbi_uops;
 215
 216/* resource management functions */
 217int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
 218void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
 219
 220#define RESOURCE_DMA1_HPS       0x1
 221#define RESOURCE_DMA2_CLP       0x2
 222#define RESOURCE_DMA3_BRS       0x4
 223
 224/* saa7146 source inputs */
 225#define SAA7146_HPS_SOURCE_PORT_A       0x00
 226#define SAA7146_HPS_SOURCE_PORT_B       0x01
 227#define SAA7146_HPS_SOURCE_YPB_CPA      0x02
 228#define SAA7146_HPS_SOURCE_YPA_CPB      0x03
 229
 230/* sync inputs */
 231#define SAA7146_HPS_SYNC_PORT_A         0x00
 232#define SAA7146_HPS_SYNC_PORT_B         0x01
 233
 234/* some memory sizes */
 235/* max. 16 clipping rectangles */
 236#define SAA7146_CLIPPING_MEM    (16 * 4 * sizeof(u32))
 237
 238/* some defines for the various clipping-modes */
 239#define SAA7146_CLIPPING_RECT           0x4
 240#define SAA7146_CLIPPING_RECT_INVERTED  0x5
 241#define SAA7146_CLIPPING_MASK           0x6
 242#define SAA7146_CLIPPING_MASK_INVERTED  0x7
 243
 244/* output formats: each entry holds four information */
 245#define RGB08_COMPOSED  0x0217 /* composed is used in the sense of "not-planar" */
 246/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
 247#define RGB15_COMPOSED  0x0213
 248#define RGB16_COMPOSED  0x0210
 249#define RGB24_COMPOSED  0x0201
 250#define RGB32_COMPOSED  0x0202
 251
 252#define Y8                      0x0006
 253#define YUV411_COMPOSED         0x0003
 254#define YUV422_COMPOSED         0x0000
 255/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
 256#define YUV411_DECOMPOSED       0x100b
 257#define YUV422_DECOMPOSED       0x1009
 258#define YUV420_DECOMPOSED       0x100a
 259
 260#define IS_PLANAR(x) (x & 0xf000)
 261
 262/* misc defines */
 263#define SAA7146_NO_SWAP         (0x0)
 264#define SAA7146_TWO_BYTE_SWAP   (0x1)
 265#define SAA7146_FOUR_BYTE_SWAP  (0x2)
 266
 267#endif
 268
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.