/drivers/media/video/cx18/cx18-driver.h

https://gitlab.com/TeamCarbonXtreme/android_kernel_samsung_msm7x27 · C Header · 693 lines · 411 code · 104 blank · 178 comment · 14 complexity · 462597e7b5c021faa4c0a291e59da7ef MD5 · raw file

  1. /*
  2. * cx18 driver internal defines and structures
  3. *
  4. * Derived from ivtv-driver.h
  5. *
  6. * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
  7. * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
  8. *
  9. * This program is free software; you can redistribute it and/or modify
  10. * it under the terms of the GNU General Public License as published by
  11. * the Free Software Foundation; either version 2 of the License, or
  12. * (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  22. * 02111-1307 USA
  23. */
  24. #ifndef CX18_DRIVER_H
  25. #define CX18_DRIVER_H
  26. #include <linux/version.h>
  27. #include <linux/module.h>
  28. #include <linux/moduleparam.h>
  29. #include <linux/init.h>
  30. #include <linux/delay.h>
  31. #include <linux/sched.h>
  32. #include <linux/fs.h>
  33. #include <linux/pci.h>
  34. #include <linux/interrupt.h>
  35. #include <linux/spinlock.h>
  36. #include <linux/i2c.h>
  37. #include <linux/i2c-algo-bit.h>
  38. #include <linux/list.h>
  39. #include <linux/unistd.h>
  40. #include <linux/pagemap.h>
  41. #include <linux/workqueue.h>
  42. #include <linux/mutex.h>
  43. #include <linux/slab.h>
  44. #include <asm/byteorder.h>
  45. #include <linux/dvb/video.h>
  46. #include <linux/dvb/audio.h>
  47. #include <media/v4l2-common.h>
  48. #include <media/v4l2-ioctl.h>
  49. #include <media/v4l2-device.h>
  50. #include <media/tuner.h>
  51. #include <media/ir-kbd-i2c.h>
  52. #include "cx18-mailbox.h"
  53. #include "cx18-av-core.h"
  54. #include "cx23418.h"
  55. /* DVB */
  56. #include "demux.h"
  57. #include "dmxdev.h"
  58. #include "dvb_demux.h"
  59. #include "dvb_frontend.h"
  60. #include "dvb_net.h"
  61. #include "dvbdev.h"
  62. #ifndef CONFIG_PCI
  63. # error "This driver requires kernel PCI support."
  64. #endif
  65. #define CX18_MEM_OFFSET 0x00000000
  66. #define CX18_MEM_SIZE 0x04000000
  67. #define CX18_REG_OFFSET 0x02000000
  68. /* Maximum cx18 driver instances. */
  69. #define CX18_MAX_CARDS 32
  70. /* Supported cards */
  71. #define CX18_CARD_HVR_1600_ESMT 0 /* Hauppauge HVR 1600 (ESMT memory) */
  72. #define CX18_CARD_HVR_1600_SAMSUNG 1 /* Hauppauge HVR 1600 (Samsung memory) */
  73. #define CX18_CARD_COMPRO_H900 2 /* Compro VideoMate H900 */
  74. #define CX18_CARD_YUAN_MPC718 3 /* Yuan MPC718 */
  75. #define CX18_CARD_CNXT_RAPTOR_PAL 4 /* Conexant Raptor PAL */
  76. #define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/
  77. #define CX18_CARD_LEADTEK_PVR2100 6 /* Leadtek WinFast PVR2100 */
  78. #define CX18_CARD_LEADTEK_DVR3100H 7 /* Leadtek WinFast DVR3100 H */
  79. #define CX18_CARD_LAST 7
  80. #define CX18_ENC_STREAM_TYPE_MPG 0
  81. #define CX18_ENC_STREAM_TYPE_TS 1
  82. #define CX18_ENC_STREAM_TYPE_YUV 2
  83. #define CX18_ENC_STREAM_TYPE_VBI 3
  84. #define CX18_ENC_STREAM_TYPE_PCM 4
  85. #define CX18_ENC_STREAM_TYPE_IDX 5
  86. #define CX18_ENC_STREAM_TYPE_RAD 6
  87. #define CX18_MAX_STREAMS 7
  88. /* system vendor and device IDs */
  89. #define PCI_VENDOR_ID_CX 0x14f1
  90. #define PCI_DEVICE_ID_CX23418 0x5b7a
  91. /* subsystem vendor ID */
  92. #define CX18_PCI_ID_HAUPPAUGE 0x0070
  93. #define CX18_PCI_ID_COMPRO 0x185b
  94. #define CX18_PCI_ID_YUAN 0x12ab
  95. #define CX18_PCI_ID_CONEXANT 0x14f1
  96. #define CX18_PCI_ID_TOSHIBA 0x1179
  97. #define CX18_PCI_ID_LEADTEK 0x107D
  98. /* ======================================================================== */
  99. /* ========================== START USER SETTABLE DMA VARIABLES =========== */
  100. /* ======================================================================== */
  101. /* DMA Buffers, Default size in MB allocated */
  102. #define CX18_DEFAULT_ENC_TS_BUFFERS 1
  103. #define CX18_DEFAULT_ENC_MPG_BUFFERS 2
  104. #define CX18_DEFAULT_ENC_IDX_BUFFERS 1
  105. #define CX18_DEFAULT_ENC_YUV_BUFFERS 2
  106. #define CX18_DEFAULT_ENC_VBI_BUFFERS 1
  107. #define CX18_DEFAULT_ENC_PCM_BUFFERS 1
  108. /* Maximum firmware DMA buffers per stream */
  109. #define CX18_MAX_FW_MDLS_PER_STREAM 63
  110. /* YUV buffer sizes in bytes to ensure integer # of frames per buffer */
  111. #define CX18_UNIT_ENC_YUV_BUFSIZE (720 * 32 * 3 / 2) /* bytes */
  112. #define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32)
  113. #define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32)
  114. /* IDX buffer size should be a multiple of the index entry size from the chip */
  115. struct cx18_enc_idx_entry {
  116. __le32 length;
  117. __le32 offset_low;
  118. __le32 offset_high;
  119. __le32 flags;
  120. __le32 pts_low;
  121. __le32 pts_high;
  122. } __attribute__ ((packed));
  123. #define CX18_UNIT_ENC_IDX_BUFSIZE \
  124. (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES)
  125. /* DMA buffer, default size in kB allocated */
  126. #define CX18_DEFAULT_ENC_TS_BUFSIZE 32
  127. #define CX18_DEFAULT_ENC_MPG_BUFSIZE 32
  128. #define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1)
  129. #define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1)
  130. #define CX18_DEFAULT_ENC_PCM_BUFSIZE 4
  131. /* i2c stuff */
  132. #define I2C_CLIENTS_MAX 16
  133. /* debugging */
  134. /* Flag to turn on high volume debugging */
  135. #define CX18_DBGFLG_WARN (1 << 0)
  136. #define CX18_DBGFLG_INFO (1 << 1)
  137. #define CX18_DBGFLG_API (1 << 2)
  138. #define CX18_DBGFLG_DMA (1 << 3)
  139. #define CX18_DBGFLG_IOCTL (1 << 4)
  140. #define CX18_DBGFLG_FILE (1 << 5)
  141. #define CX18_DBGFLG_I2C (1 << 6)
  142. #define CX18_DBGFLG_IRQ (1 << 7)
  143. /* Flag to turn on high volume debugging */
  144. #define CX18_DBGFLG_HIGHVOL (1 << 8)
  145. /* NOTE: extra space before comma in 'fmt , ## args' is required for
  146. gcc-2.95, otherwise it won't compile. */
  147. #define CX18_DEBUG(x, type, fmt, args...) \
  148. do { \
  149. if ((x) & cx18_debug) \
  150. v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \
  151. } while (0)
  152. #define CX18_DEBUG_WARN(fmt, args...) CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args)
  153. #define CX18_DEBUG_INFO(fmt, args...) CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args)
  154. #define CX18_DEBUG_API(fmt, args...) CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args)
  155. #define CX18_DEBUG_DMA(fmt, args...) CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args)
  156. #define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
  157. #define CX18_DEBUG_FILE(fmt, args...) CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args)
  158. #define CX18_DEBUG_I2C(fmt, args...) CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
  159. #define CX18_DEBUG_IRQ(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
  160. #define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \
  161. do { \
  162. if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
  163. v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \
  164. } while (0)
  165. #define CX18_DEBUG_HI_WARN(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args)
  166. #define CX18_DEBUG_HI_INFO(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args)
  167. #define CX18_DEBUG_HI_API(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args)
  168. #define CX18_DEBUG_HI_DMA(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args)
  169. #define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
  170. #define CX18_DEBUG_HI_FILE(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args)
  171. #define CX18_DEBUG_HI_I2C(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
  172. #define CX18_DEBUG_HI_IRQ(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
  173. /* Standard kernel messages */
  174. #define CX18_ERR(fmt, args...) v4l2_err(&cx->v4l2_dev, fmt , ## args)
  175. #define CX18_WARN(fmt, args...) v4l2_warn(&cx->v4l2_dev, fmt , ## args)
  176. #define CX18_INFO(fmt, args...) v4l2_info(&cx->v4l2_dev, fmt , ## args)
  177. /* Messages for internal subdevs to use */
  178. #define CX18_DEBUG_DEV(x, dev, type, fmt, args...) \
  179. do { \
  180. if ((x) & cx18_debug) \
  181. v4l2_info(dev, " " type ": " fmt , ## args); \
  182. } while (0)
  183. #define CX18_DEBUG_WARN_DEV(dev, fmt, args...) \
  184. CX18_DEBUG_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args)
  185. #define CX18_DEBUG_INFO_DEV(dev, fmt, args...) \
  186. CX18_DEBUG_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args)
  187. #define CX18_DEBUG_API_DEV(dev, fmt, args...) \
  188. CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
  189. #define CX18_DEBUG_DMA_DEV(dev, fmt, args...) \
  190. CX18_DEBUG_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args)
  191. #define CX18_DEBUG_IOCTL_DEV(dev, fmt, args...) \
  192. CX18_DEBUG_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args)
  193. #define CX18_DEBUG_FILE_DEV(dev, fmt, args...) \
  194. CX18_DEBUG_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args)
  195. #define CX18_DEBUG_I2C_DEV(dev, fmt, args...) \
  196. CX18_DEBUG_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args)
  197. #define CX18_DEBUG_IRQ_DEV(dev, fmt, args...) \
  198. CX18_DEBUG_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args)
  199. #define CX18_DEBUG_HIGH_VOL_DEV(x, dev, type, fmt, args...) \
  200. do { \
  201. if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
  202. v4l2_info(dev, " " type ": " fmt , ## args); \
  203. } while (0)
  204. #define CX18_DEBUG_HI_WARN_DEV(dev, fmt, args...) \
  205. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args)
  206. #define CX18_DEBUG_HI_INFO_DEV(dev, fmt, args...) \
  207. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args)
  208. #define CX18_DEBUG_HI_API_DEV(dev, fmt, args...) \
  209. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
  210. #define CX18_DEBUG_HI_DMA_DEV(dev, fmt, args...) \
  211. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args)
  212. #define CX18_DEBUG_HI_IOCTL_DEV(dev, fmt, args...) \
  213. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args)
  214. #define CX18_DEBUG_HI_FILE_DEV(dev, fmt, args...) \
  215. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args)
  216. #define CX18_DEBUG_HI_I2C_DEV(dev, fmt, args...) \
  217. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args)
  218. #define CX18_DEBUG_HI_IRQ_DEV(dev, fmt, args...) \
  219. CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args)
  220. #define CX18_ERR_DEV(dev, fmt, args...) v4l2_err(dev, fmt , ## args)
  221. #define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args)
  222. #define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args)
  223. extern int cx18_debug;
  224. struct cx18_options {
  225. int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */
  226. int cardtype; /* force card type on load */
  227. int tuner; /* set tuner on load */
  228. int radio; /* enable/disable radio */
  229. };
  230. /* per-mdl bit flags */
  231. #define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianess swapped */
  232. /* per-stream, s_flags */
  233. #define CX18_F_S_CLAIMED 3 /* this stream is claimed */
  234. #define CX18_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */
  235. #define CX18_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */
  236. #define CX18_F_S_STREAMOFF 7 /* signal end of stream EOS */
  237. #define CX18_F_S_APPL_IO 8 /* this stream is used read/written by an application */
  238. #define CX18_F_S_STOPPING 9 /* telling the fw to stop capturing */
  239. /* per-cx18, i_flags */
  240. #define CX18_F_I_LOADED_FW 0 /* Loaded firmware 1st time */
  241. #define CX18_F_I_EOS 4 /* End of encoder stream */
  242. #define CX18_F_I_RADIO_USER 5 /* radio tuner is selected */
  243. #define CX18_F_I_ENC_PAUSED 13 /* the encoder is paused */
  244. #define CX18_F_I_INITED 21 /* set after first open */
  245. #define CX18_F_I_FAILED 22 /* set if first open failed */
  246. /* These are the VBI types as they appear in the embedded VBI private packets. */
  247. #define CX18_SLICED_TYPE_TELETEXT_B (1)
  248. #define CX18_SLICED_TYPE_CAPTION_525 (4)
  249. #define CX18_SLICED_TYPE_WSS_625 (5)
  250. #define CX18_SLICED_TYPE_VPS (7)
  251. /**
  252. * list_entry_is_past_end - check if a previous loop cursor is off list end
  253. * @pos: the type * previously used as a loop cursor.
  254. * @head: the head for your list.
  255. * @member: the name of the list_struct within the struct.
  256. *
  257. * Check if the entry's list_head is the head of the list, thus it's not a
  258. * real entry but was the loop cursor that walked past the end
  259. */
  260. #define list_entry_is_past_end(pos, head, member) \
  261. (&pos->member == (head))
  262. struct cx18_buffer {
  263. struct list_head list;
  264. dma_addr_t dma_handle;
  265. char *buf;
  266. u32 bytesused;
  267. u32 readpos;
  268. };
  269. struct cx18_mdl {
  270. struct list_head list;
  271. u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */
  272. unsigned int skipped;
  273. unsigned long m_flags;
  274. struct list_head buf_list;
  275. struct cx18_buffer *curr_buf; /* current buffer in list for reading */
  276. u32 bytesused;
  277. u32 readpos;
  278. };
  279. struct cx18_queue {
  280. struct list_head list;
  281. atomic_t depth;
  282. u32 bytesused;
  283. spinlock_t lock;
  284. };
  285. struct cx18_dvb {
  286. struct dmx_frontend hw_frontend;
  287. struct dmx_frontend mem_frontend;
  288. struct dmxdev dmxdev;
  289. struct dvb_adapter dvb_adapter;
  290. struct dvb_demux demux;
  291. struct dvb_frontend *fe;
  292. struct dvb_net dvbnet;
  293. int enabled;
  294. int feeding;
  295. struct mutex feedlock;
  296. };
  297. struct cx18; /* forward reference */
  298. struct cx18_scb; /* forward reference */
  299. #define CX18_MAX_MDL_ACKS 2
  300. #define CX18_MAX_IN_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7)
  301. /* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */
  302. #define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1
  303. #define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2
  304. #define CX18_F_EWO_MB_STALE \
  305. (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC)
  306. struct cx18_in_work_order {
  307. struct work_struct work;
  308. atomic_t pending;
  309. struct cx18 *cx;
  310. unsigned long flags;
  311. int rpu;
  312. struct cx18_mailbox mb;
  313. struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS];
  314. char *str;
  315. };
  316. #define CX18_INVALID_TASK_HANDLE 0xffffffff
  317. struct cx18_stream {
  318. /* These first four fields are always set, even if the stream
  319. is not actually created. */
  320. struct video_device *video_dev; /* NULL when stream not created */
  321. struct cx18 *cx; /* for ease of use */
  322. const char *name; /* name of the stream */
  323. int type; /* stream type */
  324. u32 handle; /* task handle */
  325. unsigned int mdl_base_idx;
  326. u32 id;
  327. unsigned long s_flags; /* status flags, see above */
  328. int dma; /* can be PCI_DMA_TODEVICE,
  329. PCI_DMA_FROMDEVICE or
  330. PCI_DMA_NONE */
  331. wait_queue_head_t waitq;
  332. /* Buffers */
  333. struct list_head buf_pool; /* buffers not attached to an MDL */
  334. u32 buffers; /* total buffers owned by this stream */
  335. u32 buf_size; /* size in bytes of a single buffer */
  336. /* MDL sizes - all stream MDLs are the same size */
  337. u32 bufs_per_mdl;
  338. u32 mdl_size; /* total bytes in all buffers in a mdl */
  339. /* MDL Queues */
  340. struct cx18_queue q_free; /* free - in rotation, not committed */
  341. struct cx18_queue q_busy; /* busy - in use by firmware */
  342. struct cx18_queue q_full; /* full - data for user apps */
  343. struct cx18_queue q_idle; /* idle - not in rotation */
  344. struct work_struct out_work_order;
  345. /* DVB / Digital Transport */
  346. struct cx18_dvb dvb;
  347. };
  348. struct cx18_open_id {
  349. u32 open_id;
  350. int type;
  351. enum v4l2_priority prio;
  352. struct cx18 *cx;
  353. };
  354. /* forward declaration of struct defined in cx18-cards.h */
  355. struct cx18_card;
  356. /*
  357. * A note about "sliced" VBI data as implemented in this driver:
  358. *
  359. * Currently we collect the sliced VBI in the form of Ancillary Data
  360. * packets, inserted by the AV core decoder/digitizer/slicer in the
  361. * horizontal blanking region of the VBI lines, in "raw" mode as far as
  362. * the Encoder is concerned. We don't ever tell the Encoder itself
  363. * to provide sliced VBI. (AV Core: sliced mode - Encoder: raw mode)
  364. *
  365. * We then process the ancillary data ourselves to send the sliced data
  366. * to the user application directly or build up MPEG-2 private stream 1
  367. * packets to splice into (only!) MPEG-2 PS streams for the user app.
  368. *
  369. * (That's how ivtv essentially does it.)
  370. *
  371. * The Encoder should be able to extract certain sliced VBI data for
  372. * us and provide it in a separate stream or splice it into any type of
  373. * MPEG PS or TS stream, but this isn't implemented yet.
  374. */
  375. /*
  376. * Number of "raw" VBI samples per horizontal line we tell the Encoder to
  377. * grab from the decoder/digitizer/slicer output for raw or sliced VBI.
  378. * It depends on the pixel clock and the horiz rate:
  379. *
  380. * (1/Fh)*(2*Fp) = Samples/line
  381. * = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples
  382. *
  383. * Sliced VBI data is sent as ancillary data during horizontal blanking
  384. * Raw VBI is sent as active video samples during vertcal blanking
  385. *
  386. * We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line
  387. * length of 720 pixels @ 4:2:2 sampling. Thus...
  388. *
  389. * For systems that use a 15.734 kHz horizontal rate, such as
  390. * NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have:
  391. *
  392. * (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line =
  393. * 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples
  394. *
  395. * For systems that use a 15.625 kHz horizontal rate, such as
  396. * PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have:
  397. *
  398. * (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line =
  399. * 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples
  400. */
  401. static const u32 vbi_active_samples = 1444; /* 4 byte SAV + 720 Y + 720 U/V */
  402. static const u32 vbi_hblank_samples_60Hz = 272; /* 4 byte EAV + 268 anc/fill */
  403. static const u32 vbi_hblank_samples_50Hz = 284; /* 4 byte EAV + 280 anc/fill */
  404. #define CX18_VBI_FRAMES 32
  405. struct vbi_info {
  406. /* Current state of v4l2 VBI settings for this device */
  407. struct v4l2_format in;
  408. struct v4l2_sliced_vbi_format *sliced_in; /* pointer to in.fmt.sliced */
  409. u32 count; /* Count of VBI data lines: 60 Hz: 12 or 50 Hz: 18 */
  410. u32 start[2]; /* First VBI data line per field: 10 & 273 or 6 & 318 */
  411. u32 frame; /* Count of VBI buffers/frames received from Encoder */
  412. /*
  413. * Vars for creation and insertion of MPEG Private Stream 1 packets
  414. * of sliced VBI data into an MPEG PS
  415. */
  416. /* Boolean: create and insert Private Stream 1 packets into the PS */
  417. int insert_mpeg;
  418. /*
  419. * Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines.
  420. * Used in cx18-vbi.c only for collecting sliced data, and as a source
  421. * during conversion of sliced VBI data into MPEG Priv Stream 1 packets.
  422. * We don't need to save state here, but the array may have been a bit
  423. * too big (2304 bytes) to alloc from the stack.
  424. */
  425. struct v4l2_sliced_vbi_data sliced_data[36];
  426. /*
  427. * A ring buffer of driver-generated MPEG-2 PS
  428. * Program Pack/Private Stream 1 packets for sliced VBI data insertion
  429. * into the MPEG PS stream.
  430. *
  431. * In each sliced_mpeg_data[] buffer is:
  432. * 16 byte MPEG-2 PS Program Pack Header
  433. * 16 byte MPEG-2 Private Stream 1 PES Header
  434. * 4 byte magic number: "itv0" or "ITV0"
  435. * 4 byte first field line mask, if "itv0"
  436. * 4 byte second field line mask, if "itv0"
  437. * 36 lines, if "ITV0"; or <36 lines, if "itv0"; of sliced VBI data
  438. *
  439. * Each line in the payload is
  440. * 1 byte line header derived from the SDID (WSS, CC, VPS, etc.)
  441. * 42 bytes of line data
  442. *
  443. * That's a maximum 1552 bytes of payload in the Private Stream 1 packet
  444. * which is the payload size a PVR-350 (CX23415) MPEG decoder will
  445. * accept for VBI data. So, including the headers, it's a maximum 1584
  446. * bytes total.
  447. */
  448. #define CX18_SLICED_MPEG_DATA_MAXSZ 1584
  449. /* copy_vbi_buf() needs 8 temp bytes on the end for the worst case */
  450. #define CX18_SLICED_MPEG_DATA_BUFSZ (CX18_SLICED_MPEG_DATA_MAXSZ+8)
  451. u8 *sliced_mpeg_data[CX18_VBI_FRAMES];
  452. u32 sliced_mpeg_size[CX18_VBI_FRAMES];
  453. /* Count of Program Pack/Program Stream 1 packets inserted into PS */
  454. u32 inserted_frame;
  455. /*
  456. * A dummy driver stream transfer mdl & buffer with a copy of the next
  457. * sliced_mpeg_data[] buffer for output to userland apps.
  458. * Only used in cx18-fileops.c, but its state needs to persist at times.
  459. */
  460. struct cx18_mdl sliced_mpeg_mdl;
  461. struct cx18_buffer sliced_mpeg_buf;
  462. };
  463. /* Per cx23418, per I2C bus private algo callback data */
  464. struct cx18_i2c_algo_callback_data {
  465. struct cx18 *cx;
  466. int bus_index; /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */
  467. };
  468. #define CX18_MAX_MMIO_WR_RETRIES 10
  469. /* Struct to hold info about cx18 cards */
  470. struct cx18 {
  471. int instance;
  472. struct pci_dev *pci_dev;
  473. struct v4l2_device v4l2_dev;
  474. struct v4l2_subdev *sd_av; /* A/V decoder/digitizer sub-device */
  475. struct v4l2_subdev *sd_extmux; /* External multiplexer sub-dev */
  476. const struct cx18_card *card; /* card information */
  477. const char *card_name; /* full name of the card */
  478. const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
  479. u8 is_50hz;
  480. u8 is_60hz;
  481. u8 nof_inputs; /* number of video inputs */
  482. u8 nof_audio_inputs; /* number of audio inputs */
  483. u32 v4l2_cap; /* V4L2 capabilities of card */
  484. u32 hw_flags; /* Hardware description of the board */
  485. unsigned int free_mdl_idx;
  486. struct cx18_scb __iomem *scb; /* pointer to SCB */
  487. struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/
  488. struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/
  489. struct cx18_av_state av_state;
  490. /* codec settings */
  491. struct cx2341x_mpeg_params params;
  492. u32 filter_mode;
  493. u32 temporal_strength;
  494. u32 spatial_strength;
  495. /* dualwatch */
  496. unsigned long dualwatch_jiffies;
  497. u32 dualwatch_stereo_mode;
  498. struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */
  499. struct cx18_options options; /* User options */
  500. int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */
  501. int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
  502. struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */
  503. struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */
  504. void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data,
  505. size_t num_bytes);
  506. unsigned long i_flags; /* global cx18 flags */
  507. atomic_t ana_capturing; /* count number of active analog capture streams */
  508. atomic_t tot_capturing; /* total count number of active capture streams */
  509. int search_pack_header;
  510. int open_id; /* incremented each time an open occurs, used as
  511. unique ID. Starts at 1, so 0 can be used as
  512. uninitialized value in the stream->id. */
  513. u32 base_addr;
  514. struct v4l2_prio_state prio;
  515. u8 card_rev;
  516. void __iomem *enc_mem, *reg_mem;
  517. struct vbi_info vbi;
  518. u64 mpg_data_received;
  519. u64 vbi_data_inserted;
  520. wait_queue_head_t mb_apu_waitq;
  521. wait_queue_head_t mb_cpu_waitq;
  522. wait_queue_head_t cap_w;
  523. /* when the current DMA is finished this queue is woken up */
  524. wait_queue_head_t dma_waitq;
  525. u32 sw1_irq_mask;
  526. u32 sw2_irq_mask;
  527. u32 hw2_irq_mask;
  528. struct workqueue_struct *in_work_queue;
  529. char in_workq_name[11]; /* "cx18-NN-in" */
  530. struct cx18_in_work_order in_work_order[CX18_MAX_IN_WORK_ORDERS];
  531. char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */
  532. struct workqueue_struct *out_work_queue;
  533. char out_workq_name[12]; /* "cx18-NN-out" */
  534. /* i2c */
  535. struct i2c_adapter i2c_adap[2];
  536. struct i2c_algo_bit_data i2c_algo[2];
  537. struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2];
  538. struct IR_i2c_init_data ir_i2c_init_data;
  539. /* gpio */
  540. u32 gpio_dir;
  541. u32 gpio_val;
  542. struct mutex gpio_lock;
  543. struct v4l2_subdev sd_gpiomux;
  544. struct v4l2_subdev sd_resetctrl;
  545. /* v4l2 and User settings */
  546. /* codec settings */
  547. u32 audio_input;
  548. u32 active_input;
  549. v4l2_std_id std;
  550. v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */
  551. /* Used for cx18-alsa module loading */
  552. struct work_struct request_module_wk;
  553. };
  554. static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
  555. {
  556. return container_of(v4l2_dev, struct cx18, v4l2_dev);
  557. }
  558. /* cx18 extensions to be loaded */
  559. extern int (*cx18_ext_init)(struct cx18 *);
  560. /* Globals */
  561. extern int cx18_first_minor;
  562. /*==============Prototypes==================*/
  563. /* Return non-zero if a signal is pending */
  564. int cx18_msleep_timeout(unsigned int msecs, int intr);
  565. /* Read Hauppauge eeprom */
  566. struct tveeprom; /* forward reference */
  567. void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv);
  568. /* First-open initialization: load firmware, etc. */
  569. int cx18_init_on_first_open(struct cx18 *cx);
  570. /* Test if the current VBI mode is raw (1) or sliced (0) */
  571. static inline int cx18_raw_vbi(const struct cx18 *cx)
  572. {
  573. return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
  574. }
  575. /* Call the specified callback for all subdevs with a grp_id bit matching the
  576. * mask in hw (if 0, then match them all). Ignore any errors. */
  577. #define cx18_call_hw(cx, hw, o, f, args...) \
  578. __v4l2_device_call_subdevs(&(cx)->v4l2_dev, \
  579. !(hw) || (sd->grp_id & (hw)), o, f , ##args)
  580. #define cx18_call_all(cx, o, f, args...) cx18_call_hw(cx, 0, o, f , ##args)
  581. /* Call the specified callback for all subdevs with a grp_id bit matching the
  582. * mask in hw (if 0, then match them all). If the callback returns an error
  583. * other than 0 or -ENOIOCTLCMD, then return with that error code. */
  584. #define cx18_call_hw_err(cx, hw, o, f, args...) \
  585. __v4l2_device_call_subdevs_until_err( \
  586. &(cx)->v4l2_dev, !(hw) || (sd->grp_id & (hw)), o, f , ##args)
  587. #define cx18_call_all_err(cx, o, f, args...) \
  588. cx18_call_hw_err(cx, 0, o, f , ##args)
  589. #endif /* CX18_DRIVER_H */