saa7146_vv.h 7.4 KB

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  1. #ifndef __SAA7146_VV__
  2. #define __SAA7146_VV__
  3. #include <linux/videodev.h>
  4. #include <media/v4l2-common.h>
  5. #include <media/saa7146.h>
  6. #include <media/video-buf.h>
  7. #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */
  8. #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */
  9. #define WRITE_RPS0(x) do { \
  10. dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
  11. } while (0);
  12. #define WRITE_RPS1(x) do { \
  13. dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
  14. } while (0);
  15. struct saa7146_video_dma {
  16. u32 base_odd;
  17. u32 base_even;
  18. u32 prot_addr;
  19. u32 pitch;
  20. u32 base_page;
  21. u32 num_line_byte;
  22. };
  23. #define FORMAT_BYTE_SWAP 0x1
  24. #define FORMAT_IS_PLANAR 0x2
  25. struct saa7146_format {
  26. char *name;
  27. u32 pixelformat;
  28. u32 trans;
  29. u8 depth;
  30. u8 flags;
  31. u8 swap;
  32. };
  33. struct saa7146_standard
  34. {
  35. char *name;
  36. v4l2_std_id id;
  37. int v_offset; /* number of lines of vertical offset before processing */
  38. int v_field; /* number of lines in a field for HPS to process */
  39. int h_offset; /* horizontal offset of processing window */
  40. int h_pixels; /* number of horizontal pixels to process */
  41. int v_max_out;
  42. int h_max_out;
  43. };
  44. /* buffer for one video/vbi frame */
  45. struct saa7146_buf {
  46. /* common v4l buffer stuff -- must be first */
  47. struct videobuf_buffer vb;
  48. /* saa7146 specific */
  49. struct v4l2_pix_format *fmt;
  50. int (*activate)(struct saa7146_dev *dev,
  51. struct saa7146_buf *buf,
  52. struct saa7146_buf *next);
  53. /* page tables */
  54. struct saa7146_pgtable pt[3];
  55. };
  56. struct saa7146_dmaqueue {
  57. struct saa7146_dev *dev;
  58. struct saa7146_buf *curr;
  59. struct list_head queue;
  60. struct timer_list timeout;
  61. };
  62. struct saa7146_overlay {
  63. struct saa7146_fh *fh;
  64. struct v4l2_window win;
  65. struct v4l2_clip clips[16];
  66. int nclips;
  67. };
  68. /* per open data */
  69. struct saa7146_fh {
  70. struct saa7146_dev *dev;
  71. /* if this is a vbi or capture open */
  72. enum v4l2_buf_type type;
  73. /* video overlay */
  74. struct saa7146_overlay ov;
  75. /* video capture */
  76. struct videobuf_queue video_q;
  77. struct v4l2_pix_format video_fmt;
  78. /* vbi capture */
  79. struct videobuf_queue vbi_q;
  80. struct v4l2_vbi_format vbi_fmt;
  81. struct timer_list vbi_read_timeout;
  82. unsigned int resources; /* resource management for device open */
  83. };
  84. #define STATUS_OVERLAY 0x01
  85. #define STATUS_CAPTURE 0x02
  86. struct saa7146_vv
  87. {
  88. int vbi_minor;
  89. /* vbi capture */
  90. struct saa7146_dmaqueue vbi_q;
  91. /* vbi workaround interrupt queue */
  92. wait_queue_head_t vbi_wq;
  93. int vbi_fieldcount;
  94. struct saa7146_fh *vbi_streaming;
  95. int video_minor;
  96. int video_status;
  97. struct saa7146_fh *video_fh;
  98. /* video overlay */
  99. struct v4l2_framebuffer ov_fb;
  100. struct saa7146_format *ov_fmt;
  101. struct saa7146_overlay *ov_data;
  102. struct saa7146_fh *ov_suspend;
  103. /* video capture */
  104. struct saa7146_dmaqueue video_q;
  105. enum v4l2_field last_field;
  106. /* common: fixme? shouldn't this be in saa7146_fh?
  107. (this leads to a more complicated question: shall the driver
  108. store the different settings (for example S_INPUT) for every open
  109. and restore it appropriately, or should all settings be common for
  110. all opens? currently, we do the latter, like all other
  111. drivers do... */
  112. struct saa7146_standard *standard;
  113. int vflip;
  114. int hflip;
  115. int current_hps_source;
  116. int current_hps_sync;
  117. struct saa7146_dma d_clipping; /* pointer to clipping memory */
  118. unsigned int resources; /* resource management for device */
  119. };
  120. #define SAA7146_EXCLUSIVE 0x1
  121. #define SAA7146_BEFORE 0x2
  122. #define SAA7146_AFTER 0x4
  123. struct saa7146_extension_ioctls
  124. {
  125. unsigned int cmd;
  126. int flags;
  127. };
  128. /* flags */
  129. #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */
  130. struct saa7146_ext_vv
  131. {
  132. /* informations about the video capabilities of the device */
  133. int inputs;
  134. int audios;
  135. u32 capabilities;
  136. int flags;
  137. /* additionally supported transmission standards */
  138. struct saa7146_standard *stds;
  139. int num_stds;
  140. int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
  141. struct saa7146_extension_ioctls *ioctls;
  142. int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
  143. struct file_operations vbi_fops;
  144. };
  145. struct saa7146_use_ops {
  146. void (*init)(struct saa7146_dev *, struct saa7146_vv *);
  147. int(*open)(struct saa7146_dev *, struct file *);
  148. void (*release)(struct saa7146_dev *, struct file *);
  149. void (*irq_done)(struct saa7146_dev *, unsigned long status);
  150. ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
  151. };
  152. /* from saa7146_fops.c */
  153. int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, char *name, int type);
  154. int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev);
  155. void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
  156. void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
  157. int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
  158. void saa7146_buffer_timeout(unsigned long data);
  159. void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
  160. struct saa7146_buf *buf);
  161. int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
  162. int saa7146_vv_release(struct saa7146_dev* dev);
  163. /* from saa7146_hlp.c */
  164. int saa7146_enable_overlay(struct saa7146_fh *fh);
  165. void saa7146_disable_overlay(struct saa7146_fh *fh);
  166. void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
  167. void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
  168. void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
  169. void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
  170. /* from saa7146_video.c */
  171. extern struct saa7146_use_ops saa7146_video_uops;
  172. int saa7146_start_preview(struct saa7146_fh *fh);
  173. int saa7146_stop_preview(struct saa7146_fh *fh);
  174. /* from saa7146_vbi.c */
  175. extern struct saa7146_use_ops saa7146_vbi_uops;
  176. /* resource management functions */
  177. int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
  178. void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
  179. #define RESOURCE_DMA1_HPS 0x1
  180. #define RESOURCE_DMA2_CLP 0x2
  181. #define RESOURCE_DMA3_BRS 0x4
  182. /* saa7146 source inputs */
  183. #define SAA7146_HPS_SOURCE_PORT_A 0x00
  184. #define SAA7146_HPS_SOURCE_PORT_B 0x01
  185. #define SAA7146_HPS_SOURCE_YPB_CPA 0x02
  186. #define SAA7146_HPS_SOURCE_YPA_CPB 0x03
  187. /* sync inputs */
  188. #define SAA7146_HPS_SYNC_PORT_A 0x00
  189. #define SAA7146_HPS_SYNC_PORT_B 0x01
  190. /* some memory sizes */
  191. /* max. 16 clipping rectangles */
  192. #define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32))
  193. /* some defines for the various clipping-modes */
  194. #define SAA7146_CLIPPING_RECT 0x4
  195. #define SAA7146_CLIPPING_RECT_INVERTED 0x5
  196. #define SAA7146_CLIPPING_MASK 0x6
  197. #define SAA7146_CLIPPING_MASK_INVERTED 0x7
  198. /* output formats: each entry holds four informations */
  199. #define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */
  200. /* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
  201. #define RGB15_COMPOSED 0x0213
  202. #define RGB16_COMPOSED 0x0210
  203. #define RGB24_COMPOSED 0x0201
  204. #define RGB32_COMPOSED 0x0202
  205. #define Y8 0x0006
  206. #define YUV411_COMPOSED 0x0003
  207. #define YUV422_COMPOSED 0x0000
  208. /* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
  209. #define YUV411_DECOMPOSED 0x100b
  210. #define YUV422_DECOMPOSED 0x1009
  211. #define YUV420_DECOMPOSED 0x100a
  212. #define IS_PLANAR(x) (x & 0xf000)
  213. /* misc defines */
  214. #define SAA7146_NO_SWAP (0x0)
  215. #define SAA7146_TWO_BYTE_SWAP (0x1)
  216. #define SAA7146_FOUR_BYTE_SWAP (0x2)
  217. #endif