1 /* 2 ivtv driver internal defines and structures 3 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> 4 Copyright (C) 2004 Chris Kennedy <c@groovy.org> 5 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22 #ifndef IVTV_DRIVER_H 23 #define IVTV_DRIVER_H 24 25 /* Internal header for ivtv project: 26 * Driver for the cx23415/6 chip. 27 * Author: Kevin Thayer (nufan_wfk at yahoo.com) 28 * License: GPL 29 * http://www.ivtvdriver.org 30 * 31 * ----- 32 * MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com> 33 * and Takeru KOMORIYA<komoriya@paken.org> 34 * 35 * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org> 36 * using information provided by Jiun-Kuei Jung @ AVerMedia. 37 */ 38 39 #include <linux/module.h> 40 #include <linux/init.h> 41 #include <linux/delay.h> 42 #include <linux/sched.h> 43 #include <linux/fs.h> 44 #include <linux/pci.h> 45 #include <linux/interrupt.h> 46 #include <linux/spinlock.h> 47 #include <linux/i2c.h> 48 #include <linux/i2c-algo-bit.h> 49 #include <linux/list.h> 50 #include <linux/unistd.h> 51 #include <linux/pagemap.h> 52 #include <linux/scatterlist.h> 53 #include <linux/kthread.h> 54 #include <linux/mutex.h> 55 #include <linux/slab.h> 56 #include <asm/uaccess.h> 57 #include <asm/byteorder.h> 58 59 #include <linux/dvb/video.h> 60 #include <linux/dvb/audio.h> 61 #include <media/v4l2-common.h> 62 #include <media/v4l2-ioctl.h> 63 #include <media/v4l2-ctrls.h> 64 #include <media/v4l2-device.h> 65 #include <media/v4l2-fh.h> 66 #include <media/tuner.h> 67 #include <media/cx2341x.h> 68 #include <media/ir-kbd-i2c.h> 69 70 #include <linux/ivtv.h> 71 72 /* Memory layout */ 73 #define IVTV_ENCODER_OFFSET 0x00000000 74 #define IVTV_ENCODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */ 75 #define IVTV_DECODER_OFFSET 0x01000000 76 #define IVTV_DECODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */ 77 #define IVTV_REG_OFFSET 0x02000000 78 #define IVTV_REG_SIZE 0x00010000 79 80 /* Maximum ivtv driver instances. Some people have a huge number of 81 capture cards, so set this to a high value. */ 82 #define IVTV_MAX_CARDS 32 83 84 #define IVTV_ENC_STREAM_TYPE_MPG 0 85 #define IVTV_ENC_STREAM_TYPE_YUV 1 86 #define IVTV_ENC_STREAM_TYPE_VBI 2 87 #define IVTV_ENC_STREAM_TYPE_PCM 3 88 #define IVTV_ENC_STREAM_TYPE_RAD 4 89 #define IVTV_DEC_STREAM_TYPE_MPG 5 90 #define IVTV_DEC_STREAM_TYPE_VBI 6 91 #define IVTV_DEC_STREAM_TYPE_VOUT 7 92 #define IVTV_DEC_STREAM_TYPE_YUV 8 93 #define IVTV_MAX_STREAMS 9 94 95 #define IVTV_DMA_SG_OSD_ENT (2883584/PAGE_SIZE) /* sg entities */ 96 97 /* DMA Registers */ 98 #define IVTV_REG_DMAXFER (0x0000) 99 #define IVTV_REG_DMASTATUS (0x0004) 100 #define IVTV_REG_DECDMAADDR (0x0008) 101 #define IVTV_REG_ENCDMAADDR (0x000c) 102 #define IVTV_REG_DMACONTROL (0x0010) 103 #define IVTV_REG_IRQSTATUS (0x0040) 104 #define IVTV_REG_IRQMASK (0x0048) 105 106 /* Setup Registers */ 107 #define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8) 108 #define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC) 109 #define IVTV_REG_DEC_SDRAM_REFRESH (0x08F8) 110 #define IVTV_REG_DEC_SDRAM_PRECHARGE (0x08FC) 111 #define IVTV_REG_VDM (0x2800) 112 #define IVTV_REG_AO (0x2D00) 113 #define IVTV_REG_BYTEFLUSH (0x2D24) 114 #define IVTV_REG_SPU (0x9050) 115 #define IVTV_REG_HW_BLOCKS (0x9054) 116 #define IVTV_REG_VPU (0x9058) 117 #define IVTV_REG_APU (0xA064) 118 119 /* Other registers */ 120 #define IVTV_REG_DEC_LINE_FIELD (0x28C0) 121 122 /* debugging */ 123 extern int ivtv_debug; 124 #ifdef CONFIG_VIDEO_ADV_DEBUG 125 extern int ivtv_fw_debug; 126 #endif 127 128 #define IVTV_DBGFLG_WARN (1 << 0) 129 #define IVTV_DBGFLG_INFO (1 << 1) 130 #define IVTV_DBGFLG_MB (1 << 2) 131 #define IVTV_DBGFLG_IOCTL (1 << 3) 132 #define IVTV_DBGFLG_FILE (1 << 4) 133 #define IVTV_DBGFLG_DMA (1 << 5) 134 #define IVTV_DBGFLG_IRQ (1 << 6) 135 #define IVTV_DBGFLG_DEC (1 << 7) 136 #define IVTV_DBGFLG_YUV (1 << 8) 137 #define IVTV_DBGFLG_I2C (1 << 9) 138 /* Flag to turn on high volume debugging */ 139 #define IVTV_DBGFLG_HIGHVOL (1 << 10) 140 141 #define IVTV_DEBUG(x, type, fmt, args...) \ 142 do { \ 143 if ((x) & ivtv_debug) \ 144 v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \ 145 } while (0) 146 #define IVTV_DEBUG_WARN(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_WARN, "warn", fmt , ## args) 147 #define IVTV_DEBUG_INFO(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_INFO, "info", fmt , ## args) 148 #define IVTV_DEBUG_MB(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_MB, "mb", fmt , ## args) 149 #define IVTV_DEBUG_DMA(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DMA, "dma", fmt , ## args) 150 #define IVTV_DEBUG_IOCTL(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args) 151 #define IVTV_DEBUG_FILE(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_FILE, "file", fmt , ## args) 152 #define IVTV_DEBUG_I2C(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_I2C, "i2c", fmt , ## args) 153 #define IVTV_DEBUG_IRQ(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IRQ, "irq", fmt , ## args) 154 #define IVTV_DEBUG_DEC(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args) 155 #define IVTV_DEBUG_YUV(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args) 156 157 #define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \ 158 do { \ 159 if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL)) \ 160 v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \ 161 } while (0) 162 #define IVTV_DEBUG_HI_WARN(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN, "warn", fmt , ## args) 163 #define IVTV_DEBUG_HI_INFO(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO, "info", fmt , ## args) 164 #define IVTV_DEBUG_HI_MB(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_MB, "mb", fmt , ## args) 165 #define IVTV_DEBUG_HI_DMA(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA, "dma", fmt , ## args) 166 #define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args) 167 #define IVTV_DEBUG_HI_FILE(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_FILE, "file", fmt , ## args) 168 #define IVTV_DEBUG_HI_I2C(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C, "i2c", fmt , ## args) 169 #define IVTV_DEBUG_HI_IRQ(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ, "irq", fmt , ## args) 170 #define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args) 171 #define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args) 172 173 /* Standard kernel messages */ 174 #define IVTV_ERR(fmt, args...) v4l2_err(&itv->v4l2_dev, fmt , ## args) 175 #define IVTV_WARN(fmt, args...) v4l2_warn(&itv->v4l2_dev, fmt , ## args) 176 #define IVTV_INFO(fmt, args...) v4l2_info(&itv->v4l2_dev, fmt , ## args) 177 178 /* output modes (cx23415 only) */ 179 #define OUT_NONE 0 180 #define OUT_MPG 1 181 #define OUT_YUV 2 182 #define OUT_UDMA_YUV 3 183 #define OUT_PASSTHROUGH 4 184 185 #define IVTV_MAX_PGM_INDEX (400) 186 187 /* Default I2C SCL period in microseconds */ 188 #define IVTV_DEFAULT_I2C_CLOCK_PERIOD 20 189 190 struct ivtv_options { 191 int kilobytes[IVTV_MAX_STREAMS]; /* size in kilobytes of each stream */ 192 int cardtype; /* force card type on load */ 193 int tuner; /* set tuner on load */ 194 int radio; /* enable/disable radio */ 195 int newi2c; /* new I2C algorithm */ 196 int i2c_clock_period; /* period of SCL for I2C bus */ 197 }; 198 199 /* ivtv-specific mailbox template */ 200 struct ivtv_mailbox { 201 u32 flags; 202 u32 cmd; 203 u32 retval; 204 u32 timeout; 205 u32 data[CX2341X_MBOX_MAX_DATA]; 206 }; 207 208 struct ivtv_api_cache { 209 unsigned long last_jiffies; /* when last command was issued */ 210 u32 data[CX2341X_MBOX_MAX_DATA]; /* last sent api data */ 211 }; 212 213 struct ivtv_mailbox_data { 214 volatile struct ivtv_mailbox __iomem *mbox; 215 /* Bits 0-2 are for the encoder mailboxes, 0-1 are for the decoder mailboxes. 216 If the bit is set, then the corresponding mailbox is in use by the driver. */ 217 unsigned long busy; 218 u8 max_mbox; 219 }; 220 221 /* per-buffer bit flags */ 222 #define IVTV_F_B_NEED_BUF_SWAP (1 << 0) /* this buffer should be byte swapped */ 223 224 /* per-stream, s_flags */ 225 #define IVTV_F_S_DMA_PENDING 0 /* this stream has pending DMA */ 226 #define IVTV_F_S_DMA_HAS_VBI 1 /* the current DMA request also requests VBI data */ 227 #define IVTV_F_S_NEEDS_DATA 2 /* this decoding stream needs more data */ 228 229 #define IVTV_F_S_CLAIMED 3 /* this stream is claimed */ 230 #define IVTV_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */ 231 #define IVTV_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */ 232 #define IVTV_F_S_PASSTHROUGH 6 /* this stream is in passthrough mode */ 233 #define IVTV_F_S_STREAMOFF 7 /* signal end of stream EOS */ 234 #define IVTV_F_S_APPL_IO 8 /* this stream is used read/written by an application */ 235 236 #define IVTV_F_S_PIO_PENDING 9 /* this stream has pending PIO */ 237 #define IVTV_F_S_PIO_HAS_VBI 1 /* the current PIO request also requests VBI data */ 238 239 /* per-ivtv, i_flags */ 240 #define IVTV_F_I_DMA 0 /* DMA in progress */ 241 #define IVTV_F_I_UDMA 1 /* UDMA in progress */ 242 #define IVTV_F_I_UDMA_PENDING 2 /* UDMA pending */ 243 #define IVTV_F_I_SPEED_CHANGE 3 /* a speed change is in progress */ 244 #define IVTV_F_I_EOS 4 /* end of encoder stream reached */ 245 #define IVTV_F_I_RADIO_USER 5 /* the radio tuner is selected */ 246 #define IVTV_F_I_DIG_RST 6 /* reset digitizer */ 247 #define IVTV_F_I_DEC_YUV 7 /* YUV instead of MPG is being decoded */ 248 #define IVTV_F_I_UPDATE_CC 9 /* CC should be updated */ 249 #define IVTV_F_I_UPDATE_WSS 10 /* WSS should be updated */ 250 #define IVTV_F_I_UPDATE_VPS 11 /* VPS should be updated */ 251 #define IVTV_F_I_DECODING_YUV 12 /* this stream is YUV frame decoding */ 252 #define IVTV_F_I_ENC_PAUSED 13 /* the encoder is paused */ 253 #define IVTV_F_I_VALID_DEC_TIMINGS 14 /* last_dec_timing is valid */ 254 #define IVTV_F_I_HAVE_WORK 15 /* used in the interrupt handler: there is work to be done */ 255 #define IVTV_F_I_WORK_HANDLER_VBI 16 /* there is work to be done for VBI */ 256 #define IVTV_F_I_WORK_HANDLER_YUV 17 /* there is work to be done for YUV */ 257 #define IVTV_F_I_WORK_HANDLER_PIO 18 /* there is work to be done for PIO */ 258 #define IVTV_F_I_PIO 19 /* PIO in progress */ 259 #define IVTV_F_I_DEC_PAUSED 20 /* the decoder is paused */ 260 #define IVTV_F_I_INITED 21 /* set after first open */ 261 #define IVTV_F_I_FAILED 22 /* set if first open failed */ 262 #define IVTV_F_I_WORK_HANDLER_PCM 23 /* there is work to be done for PCM */ 263 264 /* Event notifications */ 265 #define IVTV_F_I_EV_DEC_STOPPED 28 /* decoder stopped event */ 266 #define IVTV_F_I_EV_VSYNC 29 /* VSYNC event */ 267 #define IVTV_F_I_EV_VSYNC_FIELD 30 /* VSYNC event field (0 = first, 1 = second field) */ 268 #define IVTV_F_I_EV_VSYNC_ENABLED 31 /* VSYNC event enabled */ 269 270 /* Scatter-Gather array element, used in DMA transfers */ 271 struct ivtv_sg_element { 272 __le32 src; 273 __le32 dst; 274 __le32 size; 275 }; 276 277 struct ivtv_sg_host_element { 278 u32 src; 279 u32 dst; 280 u32 size; 281 }; 282 283 struct ivtv_user_dma { 284 struct mutex lock; 285 int page_count; 286 struct page *map[IVTV_DMA_SG_OSD_ENT]; 287 /* Needed when dealing with highmem userspace buffers */ 288 struct page *bouncemap[IVTV_DMA_SG_OSD_ENT]; 289 290 /* Base Dev SG Array for cx23415/6 */ 291 struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT]; 292 dma_addr_t SG_handle; 293 int SG_length; 294 295 /* SG List of Buffers */ 296 struct scatterlist SGlist[IVTV_DMA_SG_OSD_ENT]; 297 }; 298 299 struct ivtv_dma_page_info { 300 unsigned long uaddr; 301 unsigned long first; 302 unsigned long last; 303 unsigned int offset; 304 unsigned int tail; 305 int page_count; 306 }; 307 308 struct ivtv_buffer { 309 struct list_head list; 310 dma_addr_t dma_handle; 311 unsigned short b_flags; 312 unsigned short dma_xfer_cnt; 313 char *buf; 314 u32 bytesused; 315 u32 readpos; 316 }; 317 318 struct ivtv_queue { 319 struct list_head list; /* the list of buffers in this queue */ 320 u32 buffers; /* number of buffers in this queue */ 321 u32 length; /* total number of bytes of available buffer space */ 322 u32 bytesused; /* total number of bytes used in this queue */ 323 }; 324 325 struct ivtv; /* forward reference */ 326 327 struct ivtv_stream { 328 /* These first four fields are always set, even if the stream 329 is not actually created. */ 330 struct video_device vdev; /* vdev.v4l2_dev is NULL if there is no device */ 331 struct ivtv *itv; /* for ease of use */ 332 const char *name; /* name of the stream */ 333 int type; /* stream type */ 334 u32 caps; /* V4L2 capabilities */ 335 336 struct v4l2_fh *fh; /* pointer to the streaming filehandle */ 337 spinlock_t qlock; /* locks access to the queues */ 338 unsigned long s_flags; /* status flags, see above */ 339 int dma; /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or PCI_DMA_NONE */ 340 u32 pending_offset; 341 u32 pending_backup; 342 u64 pending_pts; 343 344 u32 dma_offset; 345 u32 dma_backup; 346 u64 dma_pts; 347 348 int subtype; 349 wait_queue_head_t waitq; 350 u32 dma_last_offset; 351 352 /* Buffer Stats */ 353 u32 buffers; 354 u32 buf_size; 355 u32 buffers_stolen; 356 357 /* Buffer Queues */ 358 struct ivtv_queue q_free; /* free buffers */ 359 struct ivtv_queue q_full; /* full buffers */ 360 struct ivtv_queue q_io; /* waiting for I/O */ 361 struct ivtv_queue q_dma; /* waiting for DMA */ 362 struct ivtv_queue q_predma; /* waiting for DMA */ 363 364 /* DMA xfer counter, buffers belonging to the same DMA 365 xfer will have the same dma_xfer_cnt. */ 366 u16 dma_xfer_cnt; 367 368 /* Base Dev SG Array for cx23415/6 */ 369 struct ivtv_sg_host_element *sg_pending; 370 struct ivtv_sg_host_element *sg_processing; 371 struct ivtv_sg_element *sg_dma; 372 dma_addr_t sg_handle; 373 int sg_pending_size; 374 int sg_processing_size; 375 int sg_processed; 376 377 /* SG List of Buffers */ 378 struct scatterlist *SGlist; 379 }; 380 381 struct ivtv_open_id { 382 struct v4l2_fh fh; 383 int type; /* stream type */ 384 int yuv_frames; /* 1: started OUT_UDMA_YUV output mode */ 385 struct ivtv *itv; 386 }; 387 388 static inline struct ivtv_open_id *fh2id(struct v4l2_fh *fh) 389 { 390 return container_of(fh, struct ivtv_open_id, fh); 391 } 392 393 struct yuv_frame_info 394 { 395 u32 update; 396 s32 src_x; 397 s32 src_y; 398 u32 src_w; 399 u32 src_h; 400 s32 dst_x; 401 s32 dst_y; 402 u32 dst_w; 403 u32 dst_h; 404 s32 pan_x; 405 s32 pan_y; 406 u32 vis_w; 407 u32 vis_h; 408 u32 interlaced_y; 409 u32 interlaced_uv; 410 s32 tru_x; 411 u32 tru_w; 412 u32 tru_h; 413 u32 offset_y; 414 s32 lace_mode; 415 u32 sync_field; 416 u32 delay; 417 u32 interlaced; 418 }; 419 420 #define IVTV_YUV_MODE_INTERLACED 0x00 421 #define IVTV_YUV_MODE_PROGRESSIVE 0x01 422 #define IVTV_YUV_MODE_AUTO 0x02 423 #define IVTV_YUV_MODE_MASK 0x03 424 425 #define IVTV_YUV_SYNC_EVEN 0x00 426 #define IVTV_YUV_SYNC_ODD 0x04 427 #define IVTV_YUV_SYNC_MASK 0x04 428 429 #define IVTV_YUV_BUFFERS 8 430 431 struct yuv_playback_info 432 { 433 u32 reg_2834; 434 u32 reg_2838; 435 u32 reg_283c; 436 u32 reg_2840; 437 u32 reg_2844; 438 u32 reg_2848; 439 u32 reg_2854; 440 u32 reg_285c; 441 u32 reg_2864; 442 443 u32 reg_2870; 444 u32 reg_2874; 445 u32 reg_2890; 446 u32 reg_2898; 447 u32 reg_289c; 448 449 u32 reg_2918; 450 u32 reg_291c; 451 u32 reg_2920; 452 u32 reg_2924; 453 u32 reg_2928; 454 u32 reg_292c; 455 u32 reg_2930; 456 457 u32 reg_2934; 458 459 u32 reg_2938; 460 u32 reg_293c; 461 u32 reg_2940; 462 u32 reg_2944; 463 u32 reg_2948; 464 u32 reg_294c; 465 u32 reg_2950; 466 u32 reg_2954; 467 u32 reg_2958; 468 u32 reg_295c; 469 u32 reg_2960; 470 u32 reg_2964; 471 u32 reg_2968; 472 u32 reg_296c; 473 474 u32 reg_2970; 475 476 int v_filter_1; 477 int v_filter_2; 478 int h_filter; 479 480 u8 track_osd; /* Should yuv output track the OSD size & position */ 481 482 u32 osd_x_offset; 483 u32 osd_y_offset; 484 485 u32 osd_x_pan; 486 u32 osd_y_pan; 487 488 u32 osd_vis_w; 489 u32 osd_vis_h; 490 491 u32 osd_full_w; 492 u32 osd_full_h; 493 494 int decode_height; 495 496 int lace_mode; 497 int lace_threshold; 498 int lace_sync_field; 499 500 atomic_t next_dma_frame; 501 atomic_t next_fill_frame; 502 503 u32 yuv_forced_update; 504 int update_frame; 505 506 u8 fields_lapsed; /* Counter used when delaying a frame */ 507 508 struct yuv_frame_info new_frame_info[IVTV_YUV_BUFFERS]; 509 struct yuv_frame_info old_frame_info; 510 struct yuv_frame_info old_frame_info_args; 511 512 void *blanking_ptr; 513 dma_addr_t blanking_dmaptr; 514 515 int stream_size; 516 517 u8 draw_frame; /* PVR350 buffer to draw into */ 518 u8 max_frames_buffered; /* Maximum number of frames to buffer */ 519 520 struct v4l2_rect main_rect; 521 u32 v4l2_src_w; 522 u32 v4l2_src_h; 523 524 u8 running; /* Have any frames been displayed */ 525 }; 526 527 #define IVTV_VBI_FRAMES 32 528 529 /* VBI data */ 530 struct vbi_cc { 531 u8 odd[2]; /* two-byte payload of odd field */ 532 u8 even[2]; /* two-byte payload of even field */; 533 }; 534 535 struct vbi_vps { 536 u8 data[5]; /* five-byte VPS payload */ 537 }; 538 539 struct vbi_info { 540 /* VBI general data, does not change during streaming */ 541 542 u32 raw_decoder_line_size; /* raw VBI line size from digitizer */ 543 u8 raw_decoder_sav_odd_field; /* raw VBI Start Active Video digitizer code of odd field */ 544 u8 raw_decoder_sav_even_field; /* raw VBI Start Active Video digitizer code of even field */ 545 u32 sliced_decoder_line_size; /* sliced VBI line size from digitizer */ 546 u8 sliced_decoder_sav_odd_field; /* sliced VBI Start Active Video digitizer code of odd field */ 547 u8 sliced_decoder_sav_even_field; /* sliced VBI Start Active Video digitizer code of even field */ 548 549 u32 start[2]; /* start of first VBI line in the odd/even fields */ 550 u32 count; /* number of VBI lines per field */ 551 u32 raw_size; /* size of raw VBI line from the digitizer */ 552 u32 sliced_size; /* size of sliced VBI line from the digitizer */ 553 554 u32 dec_start; /* start in decoder memory of VBI re-insertion buffers */ 555 u32 enc_start; /* start in encoder memory of VBI capture buffers */ 556 u32 enc_size; /* size of VBI capture area */ 557 int fpi; /* number of VBI frames per interrupt */ 558 559 struct v4l2_format in; /* current VBI capture format */ 560 struct v4l2_sliced_vbi_format *sliced_in; /* convenience pointer to sliced struct in vbi.in union */ 561 int insert_mpeg; /* if non-zero, then embed VBI data in MPEG stream */ 562 563 /* Raw VBI compatibility hack */ 564 565 u32 frame; /* frame counter hack needed for backwards compatibility 566 of old VBI software */ 567 568 /* Sliced VBI output data */ 569 570 struct vbi_cc cc_payload[256]; /* sliced VBI CC payload array: it is an array to 571 prevent dropping CC data if they couldn't be 572 processed fast enough */ 573 int cc_payload_idx; /* index in cc_payload */ 574 u8 cc_missing_cnt; /* counts number of frames without CC for passthrough mode */ 575 int wss_payload; /* sliced VBI WSS payload */ 576 u8 wss_missing_cnt; /* counts number of frames without WSS for passthrough mode */ 577 struct vbi_vps vps_payload; /* sliced VBI VPS payload */ 578 579 /* Sliced VBI capture data */ 580 581 struct v4l2_sliced_vbi_data sliced_data[36]; /* sliced VBI storage for VBI encoder stream */ 582 struct v4l2_sliced_vbi_data sliced_dec_data[36];/* sliced VBI storage for VBI decoder stream */ 583 584 /* VBI Embedding data */ 585 586 /* Buffer for VBI data inserted into MPEG stream. 587 The first byte is a dummy byte that's never used. 588 The next 16 bytes contain the MPEG header for the VBI data, 589 the remainder is the actual VBI data. 590 The max size accepted by the MPEG VBI reinsertion turns out 591 to be 1552 bytes, which happens to be 4 + (1 + 42) * (2 * 18) bytes, 592 where 4 is a four byte header, 42 is the max sliced VBI payload, 1 is 593 a single line header byte and 2 * 18 is the number of VBI lines per frame. 594 595 However, it seems that the data must be 1K aligned, so we have to 596 pad the data until the 1 or 2 K boundary. 597 598 This pointer array will allocate 2049 bytes to store each VBI frame. */ 599 u8 *sliced_mpeg_data[IVTV_VBI_FRAMES]; 600 u32 sliced_mpeg_size[IVTV_VBI_FRAMES]; 601 struct ivtv_buffer sliced_mpeg_buf; /* temporary buffer holding data from sliced_mpeg_data */ 602 u32 inserted_frame; /* index in sliced_mpeg_size of next sliced data 603 to be inserted in the MPEG stream */ 604 }; 605 606 /* forward declaration of struct defined in ivtv-cards.h */ 607 struct ivtv_card; 608 609 /* Struct to hold info about ivtv cards */ 610 struct ivtv { 611 /* General fixed card data */ 612 struct pci_dev *pdev; /* PCI device */ 613 const struct ivtv_card *card; /* card information */ 614 const char *card_name; /* full name of the card */ 615 const struct ivtv_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */ 616 u8 has_cx23415; /* 1 if it is a cx23415 based card, 0 for cx23416 */ 617 u8 pvr150_workaround; /* 1 if the cx25840 needs to workaround a PVR150 bug */ 618 u8 nof_inputs; /* number of video inputs */ 619 u8 nof_audio_inputs; /* number of audio inputs */ 620 u32 v4l2_cap; /* V4L2 capabilities of card */ 621 u32 hw_flags; /* hardware description of the board */ 622 v4l2_std_id tuner_std; /* the norm of the card's tuner (fixed) */ 623 struct v4l2_subdev *sd_video; /* controlling video decoder subdev */ 624 struct v4l2_subdev *sd_audio; /* controlling audio subdev */ 625 struct v4l2_subdev *sd_muxer; /* controlling audio muxer subdev */ 626 resource_size_t base_addr; /* PCI resource base address */ 627 volatile void __iomem *enc_mem; /* pointer to mapped encoder memory */ 628 volatile void __iomem *dec_mem; /* pointer to mapped decoder memory */ 629 volatile void __iomem *reg_mem; /* pointer to mapped registers */ 630 struct ivtv_options options; /* user options */ 631 632 struct v4l2_device v4l2_dev; 633 struct cx2341x_handler cxhdl; 634 struct { 635 /* PTS/Frame count control cluster */ 636 struct v4l2_ctrl *ctrl_pts; 637 struct v4l2_ctrl *ctrl_frame; 638 }; 639 struct { 640 /* Audio Playback control cluster */ 641 struct v4l2_ctrl *ctrl_audio_playback; 642 struct v4l2_ctrl *ctrl_audio_multilingual_playback; 643 }; 644 struct v4l2_ctrl_handler hdl_gpio; 645 struct v4l2_subdev sd_gpio; /* GPIO sub-device */ 646 u16 instance; 647 648 /* High-level state info */ 649 unsigned long i_flags; /* global ivtv flags */ 650 u8 is_50hz; /* 1 if the current capture standard is 50 Hz */ 651 u8 is_60hz /* 1 if the current capture standard is 60 Hz */; 652 u8 is_out_50hz /* 1 if the current TV output standard is 50 Hz */; 653 u8 is_out_60hz /* 1 if the current TV output standard is 60 Hz */; 654 int output_mode; /* decoder output mode: NONE, MPG, YUV, UDMA YUV, passthrough */ 655 u32 audio_input; /* current audio input */ 656 u32 active_input; /* current video input */ 657 u32 active_output; /* current video output */ 658 v4l2_std_id std; /* current capture TV standard */ 659 v4l2_std_id std_out; /* current TV output standard */ 660 u8 audio_stereo_mode; /* decoder setting how to handle stereo MPEG audio */ 661 u8 audio_bilingual_mode; /* decoder setting how to handle bilingual MPEG audio */ 662 663 /* Locking */ 664 spinlock_t lock; /* lock access to this struct */ 665 struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */ 666 667 /* Streams */ 668 int stream_buf_size[IVTV_MAX_STREAMS]; /* stream buffer size */ 669 struct ivtv_stream streams[IVTV_MAX_STREAMS]; /* stream data */ 670 atomic_t capturing; /* count number of active capture streams */ 671 atomic_t decoding; /* count number of active decoding streams */ 672 673 /* ALSA interface for PCM capture stream */ 674 struct snd_ivtv_card *alsa; 675 void (*pcm_announce_callback)(struct snd_ivtv_card *card, u8 *pcm_data, 676 size_t num_bytes); 677 678 /* Used for ivtv-alsa module loading */ 679 struct work_struct request_module_wk; 680 681 /* Interrupts & DMA */ 682 u32 irqmask; /* active interrupts */ 683 u32 irq_rr_idx; /* round-robin stream index */ 684 struct kthread_worker irq_worker; /* kthread worker for PIO/YUV/VBI actions */ 685 struct task_struct *irq_worker_task; /* task for irq_worker */ 686 struct kthread_work irq_work; /* kthread work entry */ 687 spinlock_t dma_reg_lock; /* lock access to DMA engine registers */ 688 int cur_dma_stream; /* index of current stream doing DMA (-1 if none) */ 689 int cur_pio_stream; /* index of current stream doing PIO (-1 if none) */ 690 u32 dma_data_req_offset; /* store offset in decoder memory of current DMA request */ 691 u32 dma_data_req_size; /* store size of current DMA request */ 692 int dma_retries; /* current DMA retry attempt */ 693 struct ivtv_user_dma udma; /* user based DMA for OSD */ 694 struct timer_list dma_timer; /* timer used to catch unfinished DMAs */ 695 u32 last_vsync_field; /* last seen vsync field */ 696 wait_queue_head_t dma_waitq; /* wake up when the current DMA is finished */ 697 wait_queue_head_t eos_waitq; /* wake up when EOS arrives */ 698 wait_queue_head_t event_waitq; /* wake up when the next decoder event arrives */ 699 wait_queue_head_t vsync_waitq; /* wake up when the next decoder vsync arrives */ 700 701 702 /* Mailbox */ 703 struct ivtv_mailbox_data enc_mbox; /* encoder mailboxes */ 704 struct ivtv_mailbox_data dec_mbox; /* decoder mailboxes */ 705 struct ivtv_api_cache api_cache[256]; /* cached API commands */ 706 707 708 /* I2C */ 709 struct i2c_adapter i2c_adap; 710 struct i2c_algo_bit_data i2c_algo; 711 struct i2c_client i2c_client; 712 int i2c_state; /* i2c bit state */ 713 struct mutex i2c_bus_lock; /* lock i2c bus */ 714 715 struct IR_i2c_init_data ir_i2c_init_data; 716 717 /* Program Index information */ 718 u32 pgm_info_offset; /* start of pgm info in encoder memory */ 719 u32 pgm_info_num; /* number of elements in the pgm cyclic buffer in encoder memory */ 720 u32 pgm_info_write_idx; /* last index written by the card that was transferred to pgm_info[] */ 721 u32 pgm_info_read_idx; /* last index in pgm_info read by the application */ 722 struct v4l2_enc_idx_entry pgm_info[IVTV_MAX_PGM_INDEX]; /* filled from the pgm cyclic buffer on the card */ 723 724 725 /* Miscellaneous */ 726 u32 open_id; /* incremented each time an open occurs, is >= 1 */ 727 int search_pack_header; /* 1 if ivtv_copy_buf_to_user() is scanning for a pack header (0xba) */ 728 int speed; /* current playback speed setting */ 729 u8 speed_mute_audio; /* 1 if audio should be muted when fast forward */ 730 u64 mpg_data_received; /* number of bytes received from the MPEG stream */ 731 u64 vbi_data_inserted; /* number of VBI bytes inserted into the MPEG stream */ 732 u32 last_dec_timing[3]; /* cache last retrieved pts/scr/frame values */ 733 unsigned long dualwatch_jiffies;/* jiffies value of the previous dualwatch check */ 734 u32 dualwatch_stereo_mode; /* current detected dualwatch stereo mode */ 735 736 737 /* VBI state info */ 738 struct vbi_info vbi; /* VBI-specific data */ 739 740 741 /* YUV playback */ 742 struct yuv_playback_info yuv_info; /* YUV playback data */ 743 744 745 /* OSD support */ 746 unsigned long osd_video_pbase; 747 int osd_global_alpha_state; /* 1 = global alpha is on */ 748 int osd_local_alpha_state; /* 1 = local alpha is on */ 749 int osd_chroma_key_state; /* 1 = chroma-keying is on */ 750 u8 osd_global_alpha; /* current global alpha */ 751 u32 osd_chroma_key; /* current chroma key */ 752 struct v4l2_rect osd_rect; /* current OSD position and size */ 753 struct v4l2_rect main_rect; /* current Main window position and size */ 754 struct osd_info *osd_info; /* ivtvfb private OSD info */ 755 void (*ivtvfb_restore)(struct ivtv *itv); /* Used for a warm start */ 756 }; 757 758 static inline struct ivtv *to_ivtv(struct v4l2_device *v4l2_dev) 759 { 760 return container_of(v4l2_dev, struct ivtv, v4l2_dev); 761 } 762 763 /* ivtv extensions to be loaded */ 764 extern int (*ivtv_ext_init)(struct ivtv *); 765 766 /* Globals */ 767 extern int ivtv_first_minor; 768 769 /*==============Prototypes==================*/ 770 771 /* Hardware/IRQ */ 772 void ivtv_set_irq_mask(struct ivtv *itv, u32 mask); 773 void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask); 774 775 /* try to set output mode, return current mode. */ 776 int ivtv_set_output_mode(struct ivtv *itv, int mode); 777 778 /* return current output stream based on current mode */ 779 struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv); 780 781 /* Return non-zero if a signal is pending */ 782 int ivtv_msleep_timeout(unsigned int msecs, int intr); 783 784 /* Wait on queue, returns -EINTR if interrupted */ 785 int ivtv_waitq(wait_queue_head_t *waitq); 786 787 /* Read Hauppauge eeprom */ 788 struct tveeprom; /* forward reference */ 789 void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv); 790 791 /* First-open initialization: load firmware, init cx25840, etc. */ 792 int ivtv_init_on_first_open(struct ivtv *itv); 793 794 /* Test if the current VBI mode is raw (1) or sliced (0) */ 795 static inline int ivtv_raw_vbi(const struct ivtv *itv) 796 { 797 return itv->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE; 798 } 799 800 /* This is a PCI post thing, where if the pci register is not read, then 801 the write doesn't always take effect right away. By reading back the 802 register any pending PCI writes will be performed (in order), and so 803 you can be sure that the writes are guaranteed to be done. 804 805 Rarely needed, only in some timing sensitive cases. 806 Apparently if this is not done some motherboards seem 807 to kill the firmware and get into the broken state until computer is 808 rebooted. */ 809 #define write_sync(val, reg) \ 810 do { writel(val, reg); readl(reg); } while (0) 811 812 #define read_reg(reg) readl(itv->reg_mem + (reg)) 813 #define write_reg(val, reg) writel(val, itv->reg_mem + (reg)) 814 #define write_reg_sync(val, reg) \ 815 do { write_reg(val, reg); read_reg(reg); } while (0) 816 817 #define read_enc(addr) readl(itv->enc_mem + (u32)(addr)) 818 #define write_enc(val, addr) writel(val, itv->enc_mem + (u32)(addr)) 819 #define write_enc_sync(val, addr) \ 820 do { write_enc(val, addr); read_enc(addr); } while (0) 821 822 #define read_dec(addr) readl(itv->dec_mem + (u32)(addr)) 823 #define write_dec(val, addr) writel(val, itv->dec_mem + (u32)(addr)) 824 #define write_dec_sync(val, addr) \ 825 do { write_dec(val, addr); read_dec(addr); } while (0) 826 827 /* Call the specified callback for all subdevs matching hw (if 0, then 828 match them all). Ignore any errors. */ 829 #define ivtv_call_hw(itv, hw, o, f, args...) \ 830 do { \ 831 struct v4l2_subdev *__sd; \ 832 __v4l2_device_call_subdevs_p(&(itv)->v4l2_dev, __sd, \ 833 !(hw) ? true : (__sd->grp_id & (hw)), \ 834 o, f, ##args); \ 835 } while (0) 836 837 #define ivtv_call_all(itv, o, f, args...) ivtv_call_hw(itv, 0, o, f , ##args) 838 839 /* Call the specified callback for all subdevs matching hw (if 0, then 840 match them all). If the callback returns an error other than 0 or 841 -ENOIOCTLCMD, then return with that error code. */ 842 #define ivtv_call_hw_err(itv, hw, o, f, args...) \ 843 ({ \ 844 struct v4l2_subdev *__sd; \ 845 __v4l2_device_call_subdevs_until_err_p(&(itv)->v4l2_dev, __sd, \ 846 !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \ 847 }) 848 849 #define ivtv_call_all_err(itv, o, f, args...) ivtv_call_hw_err(itv, 0, o, f , ##args) 850 851 #endif 852