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 25 #ifndef CX18_DRIVER_H 26 #define CX18_DRIVER_H 27 28 #include <linux/module.h> 29 #include <linux/moduleparam.h> 30 #include <linux/init.h> 31 #include <linux/delay.h> 32 #include <linux/sched.h> 33 #include <linux/fs.h> 34 #include <linux/pci.h> 35 #include <linux/interrupt.h> 36 #include <linux/spinlock.h> 37 #include <linux/i2c.h> 38 #include <linux/i2c-algo-bit.h> 39 #include <linux/list.h> 40 #include <linux/unistd.h> 41 #include <linux/pagemap.h> 42 #include <linux/workqueue.h> 43 #include <linux/mutex.h> 44 #include <linux/slab.h> 45 #include <asm/byteorder.h> 46 47 #include <media/v4l2-common.h> 48 #include <media/v4l2-ioctl.h> 49 #include <media/v4l2-device.h> 50 #include <media/v4l2-fh.h> 51 #include <media/tuner.h> 52 #include <media/ir-kbd-i2c.h> 53 #include "cx18-mailbox.h" 54 #include "cx18-av-core.h" 55 #include "cx23418.h" 56 57 /* DVB */ 58 #include "demux.h" 59 #include "dmxdev.h" 60 #include "dvb_demux.h" 61 #include "dvb_frontend.h" 62 #include "dvb_net.h" 63 #include "dvbdev.h" 64 65 /* Videobuf / YUV support */ 66 #include <media/videobuf-core.h> 67 #include <media/videobuf-vmalloc.h> 68 69 #ifndef CONFIG_PCI 70 # error "This driver requires kernel PCI support." 71 #endif 72 73 #define CX18_MEM_OFFSET 0x00000000 74 #define CX18_MEM_SIZE 0x04000000 75 #define CX18_REG_OFFSET 0x02000000 76 77 /* Maximum cx18 driver instances. */ 78 #define CX18_MAX_CARDS 32 79 80 /* Supported cards */ 81 #define CX18_CARD_HVR_1600_ESMT 0 /* Hauppauge HVR 1600 (ESMT memory) */ 82 #define CX18_CARD_HVR_1600_SAMSUNG 1 /* Hauppauge HVR 1600 (Samsung memory) */ 83 #define CX18_CARD_COMPRO_H900 2 /* Compro VideoMate H900 */ 84 #define CX18_CARD_YUAN_MPC718 3 /* Yuan MPC718 */ 85 #define CX18_CARD_CNXT_RAPTOR_PAL 4 /* Conexant Raptor PAL */ 86 #define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/ 87 #define CX18_CARD_LEADTEK_PVR2100 6 /* Leadtek WinFast PVR2100 */ 88 #define CX18_CARD_LEADTEK_DVR3100H 7 /* Leadtek WinFast DVR3100 H */ 89 #define CX18_CARD_GOTVIEW_PCI_DVD3 8 /* GoTView PCI DVD3 Hybrid */ 90 #define CX18_CARD_HVR_1600_S5H1411 9 /* Hauppauge HVR 1600 s5h1411/tda18271*/ 91 #define CX18_CARD_LAST 9 92 93 #define CX18_ENC_STREAM_TYPE_MPG 0 94 #define CX18_ENC_STREAM_TYPE_TS 1 95 #define CX18_ENC_STREAM_TYPE_YUV 2 96 #define CX18_ENC_STREAM_TYPE_VBI 3 97 #define CX18_ENC_STREAM_TYPE_PCM 4 98 #define CX18_ENC_STREAM_TYPE_IDX 5 99 #define CX18_ENC_STREAM_TYPE_RAD 6 100 #define CX18_MAX_STREAMS 7 101 102 /* system vendor and device IDs */ 103 #define PCI_VENDOR_ID_CX 0x14f1 104 #define PCI_DEVICE_ID_CX23418 0x5b7a 105 106 /* subsystem vendor ID */ 107 #define CX18_PCI_ID_HAUPPAUGE 0x0070 108 #define CX18_PCI_ID_COMPRO 0x185b 109 #define CX18_PCI_ID_YUAN 0x12ab 110 #define CX18_PCI_ID_CONEXANT 0x14f1 111 #define CX18_PCI_ID_TOSHIBA 0x1179 112 #define CX18_PCI_ID_LEADTEK 0x107D 113 #define CX18_PCI_ID_GOTVIEW 0x5854 114 115 /* ======================================================================== */ 116 /* ========================== START USER SETTABLE DMA VARIABLES =========== */ 117 /* ======================================================================== */ 118 119 /* DMA Buffers, Default size in MB allocated */ 120 #define CX18_DEFAULT_ENC_TS_BUFFERS 1 121 #define CX18_DEFAULT_ENC_MPG_BUFFERS 2 122 #define CX18_DEFAULT_ENC_IDX_BUFFERS 1 123 #define CX18_DEFAULT_ENC_YUV_BUFFERS 2 124 #define CX18_DEFAULT_ENC_VBI_BUFFERS 1 125 #define CX18_DEFAULT_ENC_PCM_BUFFERS 1 126 127 /* Maximum firmware DMA buffers per stream */ 128 #define CX18_MAX_FW_MDLS_PER_STREAM 63 129 130 /* YUV buffer sizes in bytes to ensure integer # of frames per buffer */ 131 #define CX18_UNIT_ENC_YUV_BUFSIZE (720 * 32 * 3 / 2) /* bytes */ 132 #define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32) 133 #define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32) 134 135 /* IDX buffer size should be a multiple of the index entry size from the chip */ 136 struct cx18_enc_idx_entry { 137 __le32 length; 138 __le32 offset_low; 139 __le32 offset_high; 140 __le32 flags; 141 __le32 pts_low; 142 __le32 pts_high; 143 } __attribute__ ((packed)); 144 #define CX18_UNIT_ENC_IDX_BUFSIZE \ 145 (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES) 146 147 /* DMA buffer, default size in kB allocated */ 148 #define CX18_DEFAULT_ENC_TS_BUFSIZE 32 149 #define CX18_DEFAULT_ENC_MPG_BUFSIZE 32 150 #define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1) 151 #define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1) 152 #define CX18_DEFAULT_ENC_PCM_BUFSIZE 4 153 154 /* i2c stuff */ 155 #define I2C_CLIENTS_MAX 16 156 157 /* debugging */ 158 159 /* Flag to turn on high volume debugging */ 160 #define CX18_DBGFLG_WARN (1 << 0) 161 #define CX18_DBGFLG_INFO (1 << 1) 162 #define CX18_DBGFLG_API (1 << 2) 163 #define CX18_DBGFLG_DMA (1 << 3) 164 #define CX18_DBGFLG_IOCTL (1 << 4) 165 #define CX18_DBGFLG_FILE (1 << 5) 166 #define CX18_DBGFLG_I2C (1 << 6) 167 #define CX18_DBGFLG_IRQ (1 << 7) 168 /* Flag to turn on high volume debugging */ 169 #define CX18_DBGFLG_HIGHVOL (1 << 8) 170 171 /* NOTE: extra space before comma in 'fmt , ## args' is required for 172 gcc-2.95, otherwise it won't compile. */ 173 #define CX18_DEBUG(x, type, fmt, args...) \ 174 do { \ 175 if ((x) & cx18_debug) \ 176 v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \ 177 } while (0) 178 #define CX18_DEBUG_WARN(fmt, args...) CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args) 179 #define CX18_DEBUG_INFO(fmt, args...) CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args) 180 #define CX18_DEBUG_API(fmt, args...) CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args) 181 #define CX18_DEBUG_DMA(fmt, args...) CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args) 182 #define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args) 183 #define CX18_DEBUG_FILE(fmt, args...) CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args) 184 #define CX18_DEBUG_I2C(fmt, args...) CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args) 185 #define CX18_DEBUG_IRQ(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args) 186 187 #define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \ 188 do { \ 189 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \ 190 v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \ 191 } while (0) 192 #define CX18_DEBUG_HI_WARN(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args) 193 #define CX18_DEBUG_HI_INFO(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args) 194 #define CX18_DEBUG_HI_API(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args) 195 #define CX18_DEBUG_HI_DMA(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args) 196 #define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args) 197 #define CX18_DEBUG_HI_FILE(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args) 198 #define CX18_DEBUG_HI_I2C(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args) 199 #define CX18_DEBUG_HI_IRQ(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args) 200 201 /* Standard kernel messages */ 202 #define CX18_ERR(fmt, args...) v4l2_err(&cx->v4l2_dev, fmt , ## args) 203 #define CX18_WARN(fmt, args...) v4l2_warn(&cx->v4l2_dev, fmt , ## args) 204 #define CX18_INFO(fmt, args...) v4l2_info(&cx->v4l2_dev, fmt , ## args) 205 206 /* Messages for internal subdevs to use */ 207 #define CX18_DEBUG_DEV(x, dev, type, fmt, args...) \ 208 do { \ 209 if ((x) & cx18_debug) \ 210 v4l2_info(dev, " " type ": " fmt , ## args); \ 211 } while (0) 212 #define CX18_DEBUG_WARN_DEV(dev, fmt, args...) \ 213 CX18_DEBUG_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args) 214 #define CX18_DEBUG_INFO_DEV(dev, fmt, args...) \ 215 CX18_DEBUG_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args) 216 #define CX18_DEBUG_API_DEV(dev, fmt, args...) \ 217 CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args) 218 #define CX18_DEBUG_DMA_DEV(dev, fmt, args...) \ 219 CX18_DEBUG_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args) 220 #define CX18_DEBUG_IOCTL_DEV(dev, fmt, args...) \ 221 CX18_DEBUG_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args) 222 #define CX18_DEBUG_FILE_DEV(dev, fmt, args...) \ 223 CX18_DEBUG_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args) 224 #define CX18_DEBUG_I2C_DEV(dev, fmt, args...) \ 225 CX18_DEBUG_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args) 226 #define CX18_DEBUG_IRQ_DEV(dev, fmt, args...) \ 227 CX18_DEBUG_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args) 228 229 #define CX18_DEBUG_HIGH_VOL_DEV(x, dev, type, fmt, args...) \ 230 do { \ 231 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \ 232 v4l2_info(dev, " " type ": " fmt , ## args); \ 233 } while (0) 234 #define CX18_DEBUG_HI_WARN_DEV(dev, fmt, args...) \ 235 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args) 236 #define CX18_DEBUG_HI_INFO_DEV(dev, fmt, args...) \ 237 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args) 238 #define CX18_DEBUG_HI_API_DEV(dev, fmt, args...) \ 239 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args) 240 #define CX18_DEBUG_HI_DMA_DEV(dev, fmt, args...) \ 241 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args) 242 #define CX18_DEBUG_HI_IOCTL_DEV(dev, fmt, args...) \ 243 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args) 244 #define CX18_DEBUG_HI_FILE_DEV(dev, fmt, args...) \ 245 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args) 246 #define CX18_DEBUG_HI_I2C_DEV(dev, fmt, args...) \ 247 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args) 248 #define CX18_DEBUG_HI_IRQ_DEV(dev, fmt, args...) \ 249 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args) 250 251 #define CX18_ERR_DEV(dev, fmt, args...) v4l2_err(dev, fmt , ## args) 252 #define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args) 253 #define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args) 254 255 extern int cx18_debug; 256 257 struct cx18_options { 258 int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */ 259 int cardtype; /* force card type on load */ 260 int tuner; /* set tuner on load */ 261 int radio; /* enable/disable radio */ 262 }; 263 264 /* per-mdl bit flags */ 265 #define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianness swapped */ 266 267 /* per-stream, s_flags */ 268 #define CX18_F_S_CLAIMED 3 /* this stream is claimed */ 269 #define CX18_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */ 270 #define CX18_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */ 271 #define CX18_F_S_STREAMOFF 7 /* signal end of stream EOS */ 272 #define CX18_F_S_APPL_IO 8 /* this stream is used read/written by an application */ 273 #define CX18_F_S_STOPPING 9 /* telling the fw to stop capturing */ 274 275 /* per-cx18, i_flags */ 276 #define CX18_F_I_LOADED_FW 0 /* Loaded firmware 1st time */ 277 #define CX18_F_I_EOS 4 /* End of encoder stream */ 278 #define CX18_F_I_RADIO_USER 5 /* radio tuner is selected */ 279 #define CX18_F_I_ENC_PAUSED 13 /* the encoder is paused */ 280 #define CX18_F_I_INITED 21 /* set after first open */ 281 #define CX18_F_I_FAILED 22 /* set if first open failed */ 282 283 /* These are the VBI types as they appear in the embedded VBI private packets. */ 284 #define CX18_SLICED_TYPE_TELETEXT_B (1) 285 #define CX18_SLICED_TYPE_CAPTION_525 (4) 286 #define CX18_SLICED_TYPE_WSS_625 (5) 287 #define CX18_SLICED_TYPE_VPS (7) 288 289 /** 290 * list_entry_is_past_end - check if a previous loop cursor is off list end 291 * @pos: the type * previously used as a loop cursor. 292 * @head: the head for your list. 293 * @member: the name of the list_struct within the struct. 294 * 295 * Check if the entry's list_head is the head of the list, thus it's not a 296 * real entry but was the loop cursor that walked past the end 297 */ 298 #define list_entry_is_past_end(pos, head, member) \ 299 (&pos->member == (head)) 300 301 struct cx18_buffer { 302 struct list_head list; 303 dma_addr_t dma_handle; 304 char *buf; 305 306 u32 bytesused; 307 u32 readpos; 308 }; 309 310 struct cx18_mdl { 311 struct list_head list; 312 u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */ 313 314 unsigned int skipped; 315 unsigned long m_flags; 316 317 struct list_head buf_list; 318 struct cx18_buffer *curr_buf; /* current buffer in list for reading */ 319 320 u32 bytesused; 321 u32 readpos; 322 }; 323 324 struct cx18_queue { 325 struct list_head list; 326 atomic_t depth; 327 u32 bytesused; 328 spinlock_t lock; 329 }; 330 331 struct cx18_stream; /* forward reference */ 332 333 struct cx18_dvb { 334 struct cx18_stream *stream; 335 struct dmx_frontend hw_frontend; 336 struct dmx_frontend mem_frontend; 337 struct dmxdev dmxdev; 338 struct dvb_adapter dvb_adapter; 339 struct dvb_demux demux; 340 struct dvb_frontend *fe; 341 struct dvb_net dvbnet; 342 int enabled; 343 int feeding; 344 struct mutex feedlock; 345 }; 346 347 struct cx18; /* forward reference */ 348 struct cx18_scb; /* forward reference */ 349 350 351 #define CX18_MAX_MDL_ACKS 2 352 #define CX18_MAX_IN_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7) 353 /* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */ 354 355 #define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1 356 #define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2 357 #define CX18_F_EWO_MB_STALE \ 358 (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC) 359 360 struct cx18_in_work_order { 361 struct work_struct work; 362 atomic_t pending; 363 struct cx18 *cx; 364 unsigned long flags; 365 int rpu; 366 struct cx18_mailbox mb; 367 struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS]; 368 char *str; 369 }; 370 371 #define CX18_INVALID_TASK_HANDLE 0xffffffff 372 373 struct cx18_stream { 374 /* These first five fields are always set, even if the stream 375 is not actually created. */ 376 struct video_device *video_dev; /* NULL when stream not created */ 377 struct cx18_dvb *dvb; /* DVB / Digital Transport */ 378 struct cx18 *cx; /* for ease of use */ 379 const char *name; /* name of the stream */ 380 int type; /* stream type */ 381 u32 handle; /* task handle */ 382 unsigned int mdl_base_idx; 383 384 u32 id; 385 unsigned long s_flags; /* status flags, see above */ 386 int dma; /* can be PCI_DMA_TODEVICE, 387 PCI_DMA_FROMDEVICE or 388 PCI_DMA_NONE */ 389 wait_queue_head_t waitq; 390 391 /* Buffers */ 392 struct list_head buf_pool; /* buffers not attached to an MDL */ 393 u32 buffers; /* total buffers owned by this stream */ 394 u32 buf_size; /* size in bytes of a single buffer */ 395 396 /* MDL sizes - all stream MDLs are the same size */ 397 u32 bufs_per_mdl; 398 u32 mdl_size; /* total bytes in all buffers in a mdl */ 399 400 /* MDL Queues */ 401 struct cx18_queue q_free; /* free - in rotation, not committed */ 402 struct cx18_queue q_busy; /* busy - in use by firmware */ 403 struct cx18_queue q_full; /* full - data for user apps */ 404 struct cx18_queue q_idle; /* idle - not in rotation */ 405 406 struct work_struct out_work_order; 407 408 /* Videobuf for YUV video */ 409 u32 pixelformat; 410 u32 vb_bytes_per_frame; 411 struct list_head vb_capture; /* video capture queue */ 412 spinlock_t vb_lock; 413 struct timer_list vb_timeout; 414 415 struct videobuf_queue vbuf_q; 416 spinlock_t vbuf_q_lock; /* Protect vbuf_q */ 417 enum v4l2_buf_type vb_type; 418 }; 419 420 struct cx18_videobuf_buffer { 421 /* Common video buffer sub-system struct */ 422 struct videobuf_buffer vb; 423 v4l2_std_id tvnorm; /* selected tv norm */ 424 u32 bytes_used; 425 }; 426 427 struct cx18_open_id { 428 struct v4l2_fh fh; 429 u32 open_id; 430 int type; 431 struct cx18 *cx; 432 }; 433 434 static inline struct cx18_open_id *fh2id(struct v4l2_fh *fh) 435 { 436 return container_of(fh, struct cx18_open_id, fh); 437 } 438 439 static inline struct cx18_open_id *file2id(struct file *file) 440 { 441 return fh2id(file->private_data); 442 } 443 444 /* forward declaration of struct defined in cx18-cards.h */ 445 struct cx18_card; 446 447 /* 448 * A note about "sliced" VBI data as implemented in this driver: 449 * 450 * Currently we collect the sliced VBI in the form of Ancillary Data 451 * packets, inserted by the AV core decoder/digitizer/slicer in the 452 * horizontal blanking region of the VBI lines, in "raw" mode as far as 453 * the Encoder is concerned. We don't ever tell the Encoder itself 454 * to provide sliced VBI. (AV Core: sliced mode - Encoder: raw mode) 455 * 456 * We then process the ancillary data ourselves to send the sliced data 457 * to the user application directly or build up MPEG-2 private stream 1 458 * packets to splice into (only!) MPEG-2 PS streams for the user app. 459 * 460 * (That's how ivtv essentially does it.) 461 * 462 * The Encoder should be able to extract certain sliced VBI data for 463 * us and provide it in a separate stream or splice it into any type of 464 * MPEG PS or TS stream, but this isn't implemented yet. 465 */ 466 467 /* 468 * Number of "raw" VBI samples per horizontal line we tell the Encoder to 469 * grab from the decoder/digitizer/slicer output for raw or sliced VBI. 470 * It depends on the pixel clock and the horiz rate: 471 * 472 * (1/Fh)*(2*Fp) = Samples/line 473 * = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples 474 * 475 * Sliced VBI data is sent as ancillary data during horizontal blanking 476 * Raw VBI is sent as active video samples during vertcal blanking 477 * 478 * We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line 479 * length of 720 pixels @ 4:2:2 sampling. Thus... 480 * 481 * For systems that use a 15.734 kHz horizontal rate, such as 482 * NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have: 483 * 484 * (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line = 485 * 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples 486 * 487 * For systems that use a 15.625 kHz horizontal rate, such as 488 * PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have: 489 * 490 * (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line = 491 * 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples 492 */ 493 static const u32 vbi_active_samples = 1444; /* 4 byte SAV + 720 Y + 720 U/V */ 494 static const u32 vbi_hblank_samples_60Hz = 272; /* 4 byte EAV + 268 anc/fill */ 495 static const u32 vbi_hblank_samples_50Hz = 284; /* 4 byte EAV + 280 anc/fill */ 496 497 #define CX18_VBI_FRAMES 32 498 499 struct vbi_info { 500 /* Current state of v4l2 VBI settings for this device */ 501 struct v4l2_format in; 502 struct v4l2_sliced_vbi_format *sliced_in; /* pointer to in.fmt.sliced */ 503 u32 count; /* Count of VBI data lines: 60 Hz: 12 or 50 Hz: 18 */ 504 u32 start[2]; /* First VBI data line per field: 10 & 273 or 6 & 318 */ 505 506 u32 frame; /* Count of VBI buffers/frames received from Encoder */ 507 508 /* 509 * Vars for creation and insertion of MPEG Private Stream 1 packets 510 * of sliced VBI data into an MPEG PS 511 */ 512 513 /* Boolean: create and insert Private Stream 1 packets into the PS */ 514 int insert_mpeg; 515 516 /* 517 * Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines. 518 * Used in cx18-vbi.c only for collecting sliced data, and as a source 519 * during conversion of sliced VBI data into MPEG Priv Stream 1 packets. 520 * We don't need to save state here, but the array may have been a bit 521 * too big (2304 bytes) to alloc from the stack. 522 */ 523 struct v4l2_sliced_vbi_data sliced_data[36]; 524 525 /* 526 * A ring buffer of driver-generated MPEG-2 PS 527 * Program Pack/Private Stream 1 packets for sliced VBI data insertion 528 * into the MPEG PS stream. 529 * 530 * In each sliced_mpeg_data[] buffer is: 531 * 16 byte MPEG-2 PS Program Pack Header 532 * 16 byte MPEG-2 Private Stream 1 PES Header 533 * 4 byte magic number: "itv0" or "ITV0" 534 * 4 byte first field line mask, if "itv0" 535 * 4 byte second field line mask, if "itv0" 536 * 36 lines, if "ITV0"; or <36 lines, if "itv0"; of sliced VBI data 537 * 538 * Each line in the payload is 539 * 1 byte line header derived from the SDID (WSS, CC, VPS, etc.) 540 * 42 bytes of line data 541 * 542 * That's a maximum 1552 bytes of payload in the Private Stream 1 packet 543 * which is the payload size a PVR-350 (CX23415) MPEG decoder will 544 * accept for VBI data. So, including the headers, it's a maximum 1584 545 * bytes total. 546 */ 547 #define CX18_SLICED_MPEG_DATA_MAXSZ 1584 548 /* copy_vbi_buf() needs 8 temp bytes on the end for the worst case */ 549 #define CX18_SLICED_MPEG_DATA_BUFSZ (CX18_SLICED_MPEG_DATA_MAXSZ+8) 550 u8 *sliced_mpeg_data[CX18_VBI_FRAMES]; 551 u32 sliced_mpeg_size[CX18_VBI_FRAMES]; 552 553 /* Count of Program Pack/Program Stream 1 packets inserted into PS */ 554 u32 inserted_frame; 555 556 /* 557 * A dummy driver stream transfer mdl & buffer with a copy of the next 558 * sliced_mpeg_data[] buffer for output to userland apps. 559 * Only used in cx18-fileops.c, but its state needs to persist at times. 560 */ 561 struct cx18_mdl sliced_mpeg_mdl; 562 struct cx18_buffer sliced_mpeg_buf; 563 }; 564 565 /* Per cx23418, per I2C bus private algo callback data */ 566 struct cx18_i2c_algo_callback_data { 567 struct cx18 *cx; 568 int bus_index; /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */ 569 }; 570 571 #define CX18_MAX_MMIO_WR_RETRIES 10 572 573 /* Struct to hold info about cx18 cards */ 574 struct cx18 { 575 int instance; 576 struct pci_dev *pci_dev; 577 struct v4l2_device v4l2_dev; 578 struct v4l2_subdev *sd_av; /* A/V decoder/digitizer sub-device */ 579 struct v4l2_subdev *sd_extmux; /* External multiplexer sub-dev */ 580 581 const struct cx18_card *card; /* card information */ 582 const char *card_name; /* full name of the card */ 583 const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */ 584 u8 is_50hz; 585 u8 is_60hz; 586 u8 nof_inputs; /* number of video inputs */ 587 u8 nof_audio_inputs; /* number of audio inputs */ 588 u32 v4l2_cap; /* V4L2 capabilities of card */ 589 u32 hw_flags; /* Hardware description of the board */ 590 unsigned int free_mdl_idx; 591 struct cx18_scb __iomem *scb; /* pointer to SCB */ 592 struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/ 593 struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/ 594 595 struct cx18_av_state av_state; 596 597 /* codec settings */ 598 struct cx2341x_handler cxhdl; 599 u32 filter_mode; 600 u32 temporal_strength; 601 u32 spatial_strength; 602 603 /* dualwatch */ 604 unsigned long dualwatch_jiffies; 605 u32 dualwatch_stereo_mode; 606 607 struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */ 608 struct cx18_options options; /* User options */ 609 int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */ 610 int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */ 611 struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */ 612 struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */ 613 void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data, 614 size_t num_bytes); 615 616 unsigned long i_flags; /* global cx18 flags */ 617 atomic_t ana_capturing; /* count number of active analog capture streams */ 618 atomic_t tot_capturing; /* total count number of active capture streams */ 619 int search_pack_header; 620 621 int open_id; /* incremented each time an open occurs, used as 622 unique ID. Starts at 1, so 0 can be used as 623 uninitialized value in the stream->id. */ 624 625 resource_size_t base_addr; 626 627 u8 card_rev; 628 void __iomem *enc_mem, *reg_mem; 629 630 struct vbi_info vbi; 631 632 u64 mpg_data_received; 633 u64 vbi_data_inserted; 634 635 wait_queue_head_t mb_apu_waitq; 636 wait_queue_head_t mb_cpu_waitq; 637 wait_queue_head_t cap_w; 638 /* when the current DMA is finished this queue is woken up */ 639 wait_queue_head_t dma_waitq; 640 641 u32 sw1_irq_mask; 642 u32 sw2_irq_mask; 643 u32 hw2_irq_mask; 644 645 struct workqueue_struct *in_work_queue; 646 char in_workq_name[11]; /* "cx18-NN-in" */ 647 struct cx18_in_work_order in_work_order[CX18_MAX_IN_WORK_ORDERS]; 648 char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */ 649 650 /* i2c */ 651 struct i2c_adapter i2c_adap[2]; 652 struct i2c_algo_bit_data i2c_algo[2]; 653 struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2]; 654 655 struct IR_i2c_init_data ir_i2c_init_data; 656 657 /* gpio */ 658 u32 gpio_dir; 659 u32 gpio_val; 660 struct mutex gpio_lock; 661 struct v4l2_subdev sd_gpiomux; 662 struct v4l2_subdev sd_resetctrl; 663 664 /* v4l2 and User settings */ 665 666 /* codec settings */ 667 u32 audio_input; 668 u32 active_input; 669 v4l2_std_id std; 670 v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */ 671 672 /* Used for cx18-alsa module loading */ 673 struct work_struct request_module_wk; 674 }; 675 676 static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev) 677 { 678 return container_of(v4l2_dev, struct cx18, v4l2_dev); 679 } 680 681 /* cx18 extensions to be loaded */ 682 extern int (*cx18_ext_init)(struct cx18 *); 683 684 /* Globals */ 685 extern int cx18_first_minor; 686 687 /*==============Prototypes==================*/ 688 689 /* Return non-zero if a signal is pending */ 690 int cx18_msleep_timeout(unsigned int msecs, int intr); 691 692 /* Read Hauppauge eeprom */ 693 struct tveeprom; /* forward reference */ 694 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv); 695 696 /* First-open initialization: load firmware, etc. */ 697 int cx18_init_on_first_open(struct cx18 *cx); 698 699 /* Test if the current VBI mode is raw (1) or sliced (0) */ 700 static inline int cx18_raw_vbi(const struct cx18 *cx) 701 { 702 return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE; 703 } 704 705 /* Call the specified callback for all subdevs with a grp_id bit matching the 706 * mask in hw (if 0, then match them all). Ignore any errors. */ 707 #define cx18_call_hw(cx, hw, o, f, args...) \ 708 do { \ 709 struct v4l2_subdev *__sd; \ 710 __v4l2_device_call_subdevs_p(&(cx)->v4l2_dev, __sd, \ 711 !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \ 712 } while (0) 713 714 #define cx18_call_all(cx, o, f, args...) cx18_call_hw(cx, 0, o, f , ##args) 715 716 /* Call the specified callback for all subdevs with a grp_id bit matching the 717 * mask in hw (if 0, then match them all). If the callback returns an error 718 * other than 0 or -ENOIOCTLCMD, then return with that error code. */ 719 #define cx18_call_hw_err(cx, hw, o, f, args...) \ 720 ({ \ 721 struct v4l2_subdev *__sd; \ 722 __v4l2_device_call_subdevs_until_err_p(&(cx)->v4l2_dev, \ 723 __sd, !(hw) || (__sd->grp_id & (hw)), o, f, \ 724 ##args); \ 725 }) 726 727 #define cx18_call_all_err(cx, o, f, args...) \ 728 cx18_call_hw_err(cx, 0, o, f , ##args) 729 730 #endif /* CX18_DRIVER_H */ 731