1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * cx18 driver internal defines and structures 4 * 5 * Derived from ivtv-driver.h 6 * 7 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> 8 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net> 9 */ 10 11 #ifndef CX18_DRIVER_H 12 #define CX18_DRIVER_H 13 14 #include <linux/module.h> 15 #include <linux/moduleparam.h> 16 #include <linux/init.h> 17 #include <linux/delay.h> 18 #include <linux/sched/signal.h> 19 #include <linux/fs.h> 20 #include <linux/pci.h> 21 #include <linux/interrupt.h> 22 #include <linux/spinlock.h> 23 #include <linux/i2c.h> 24 #include <linux/i2c-algo-bit.h> 25 #include <linux/list.h> 26 #include <linux/unistd.h> 27 #include <linux/pagemap.h> 28 #include <linux/workqueue.h> 29 #include <linux/mutex.h> 30 #include <linux/slab.h> 31 #include <asm/byteorder.h> 32 33 #include <media/v4l2-common.h> 34 #include <media/v4l2-ioctl.h> 35 #include <media/v4l2-device.h> 36 #include <media/v4l2-fh.h> 37 #include <media/tuner.h> 38 #include <media/i2c/ir-kbd-i2c.h> 39 #include "cx18-mailbox.h" 40 #include "cx18-av-core.h" 41 #include "cx23418.h" 42 43 /* DVB */ 44 #include <media/demux.h> 45 #include <media/dmxdev.h> 46 #include <media/dvb_demux.h> 47 #include <media/dvb_frontend.h> 48 #include <media/dvb_net.h> 49 #include <media/dvbdev.h> 50 51 /* vb2 YUV support */ 52 #include <media/videobuf2-vmalloc.h> 53 54 #ifndef CONFIG_PCI 55 # error "This driver requires kernel PCI support." 56 #endif 57 58 #define CX18_MEM_OFFSET 0x00000000 59 #define CX18_MEM_SIZE 0x04000000 60 #define CX18_REG_OFFSET 0x02000000 61 62 /* Maximum cx18 driver instances. */ 63 #define CX18_MAX_CARDS 32 64 65 /* Supported cards */ 66 #define CX18_CARD_HVR_1600_ESMT 0 /* Hauppauge HVR 1600 (ESMT memory) */ 67 #define CX18_CARD_HVR_1600_SAMSUNG 1 /* Hauppauge HVR 1600 (Samsung memory) */ 68 #define CX18_CARD_COMPRO_H900 2 /* Compro VideoMate H900 */ 69 #define CX18_CARD_YUAN_MPC718 3 /* Yuan MPC718 */ 70 #define CX18_CARD_CNXT_RAPTOR_PAL 4 /* Conexant Raptor PAL */ 71 #define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/ 72 #define CX18_CARD_LEADTEK_PVR2100 6 /* Leadtek WinFast PVR2100 */ 73 #define CX18_CARD_LEADTEK_DVR3100H 7 /* Leadtek WinFast DVR3100 H */ 74 #define CX18_CARD_GOTVIEW_PCI_DVD3 8 /* GoTView PCI DVD3 Hybrid */ 75 #define CX18_CARD_HVR_1600_S5H1411 9 /* Hauppauge HVR 1600 s5h1411/tda18271*/ 76 #define CX18_CARD_LAST 9 77 78 #define CX18_ENC_STREAM_TYPE_MPG 0 79 #define CX18_ENC_STREAM_TYPE_TS 1 80 #define CX18_ENC_STREAM_TYPE_YUV 2 81 #define CX18_ENC_STREAM_TYPE_VBI 3 82 #define CX18_ENC_STREAM_TYPE_PCM 4 83 #define CX18_ENC_STREAM_TYPE_IDX 5 84 #define CX18_ENC_STREAM_TYPE_RAD 6 85 #define CX18_MAX_STREAMS 7 86 87 /* system vendor and device IDs */ 88 #define PCI_VENDOR_ID_CX 0x14f1 89 #define PCI_DEVICE_ID_CX23418 0x5b7a 90 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 #define CX18_PCI_ID_GOTVIEW 0x5854 99 100 /* ======================================================================== */ 101 /* ========================== START USER SETTABLE DMA VARIABLES =========== */ 102 /* ======================================================================== */ 103 104 /* DMA Buffers, Default size in MB allocated */ 105 #define CX18_DEFAULT_ENC_TS_BUFFERS 1 106 #define CX18_DEFAULT_ENC_MPG_BUFFERS 2 107 #define CX18_DEFAULT_ENC_IDX_BUFFERS 1 108 #define CX18_DEFAULT_ENC_YUV_BUFFERS 2 109 #define CX18_DEFAULT_ENC_VBI_BUFFERS 1 110 #define CX18_DEFAULT_ENC_PCM_BUFFERS 1 111 112 /* Maximum firmware DMA buffers per stream */ 113 #define CX18_MAX_FW_MDLS_PER_STREAM 63 114 115 /* YUV buffer sizes in bytes to ensure integer # of frames per buffer */ 116 #define CX18_UNIT_ENC_YUV_BUFSIZE (720 * 32 * 3 / 2) /* bytes */ 117 #define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32) 118 #define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32) 119 120 /* IDX buffer size should be a multiple of the index entry size from the chip */ 121 struct cx18_enc_idx_entry { 122 __le32 length; 123 __le32 offset_low; 124 __le32 offset_high; 125 __le32 flags; 126 __le32 pts_low; 127 __le32 pts_high; 128 } __attribute__ ((packed)); 129 #define CX18_UNIT_ENC_IDX_BUFSIZE \ 130 (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES) 131 132 /* DMA buffer, default size in kB allocated */ 133 #define CX18_DEFAULT_ENC_TS_BUFSIZE 32 134 #define CX18_DEFAULT_ENC_MPG_BUFSIZE 32 135 #define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1) 136 #define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1) 137 #define CX18_DEFAULT_ENC_PCM_BUFSIZE 4 138 139 /* i2c stuff */ 140 #define I2C_CLIENTS_MAX 16 141 142 /* debugging */ 143 144 /* Flag to turn on high volume debugging */ 145 #define CX18_DBGFLG_WARN (1 << 0) 146 #define CX18_DBGFLG_INFO (1 << 1) 147 #define CX18_DBGFLG_API (1 << 2) 148 #define CX18_DBGFLG_DMA (1 << 3) 149 #define CX18_DBGFLG_IOCTL (1 << 4) 150 #define CX18_DBGFLG_FILE (1 << 5) 151 #define CX18_DBGFLG_I2C (1 << 6) 152 #define CX18_DBGFLG_IRQ (1 << 7) 153 /* Flag to turn on high volume debugging */ 154 #define CX18_DBGFLG_HIGHVOL (1 << 8) 155 156 /* NOTE: extra space before comma in 'fmt , ## args' is required for 157 gcc-2.95, otherwise it won't compile. */ 158 #define CX18_DEBUG(x, type, fmt, args...) \ 159 do { \ 160 if ((x) & cx18_debug) \ 161 v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \ 162 } while (0) 163 #define CX18_DEBUG_WARN(fmt, args...) CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args) 164 #define CX18_DEBUG_INFO(fmt, args...) CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args) 165 #define CX18_DEBUG_API(fmt, args...) CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args) 166 #define CX18_DEBUG_DMA(fmt, args...) CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args) 167 #define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args) 168 #define CX18_DEBUG_FILE(fmt, args...) CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args) 169 #define CX18_DEBUG_I2C(fmt, args...) CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args) 170 #define CX18_DEBUG_IRQ(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args) 171 172 #define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \ 173 do { \ 174 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \ 175 v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \ 176 } while (0) 177 #define CX18_DEBUG_HI_WARN(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args) 178 #define CX18_DEBUG_HI_INFO(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args) 179 #define CX18_DEBUG_HI_API(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args) 180 #define CX18_DEBUG_HI_DMA(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args) 181 #define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args) 182 #define CX18_DEBUG_HI_FILE(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args) 183 #define CX18_DEBUG_HI_I2C(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args) 184 #define CX18_DEBUG_HI_IRQ(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args) 185 186 /* Standard kernel messages */ 187 #define CX18_ERR(fmt, args...) v4l2_err(&cx->v4l2_dev, fmt , ## args) 188 #define CX18_WARN(fmt, args...) v4l2_warn(&cx->v4l2_dev, fmt , ## args) 189 #define CX18_INFO(fmt, args...) v4l2_info(&cx->v4l2_dev, fmt , ## args) 190 191 /* Messages for internal subdevs to use */ 192 #define CX18_DEBUG_DEV(x, dev, type, fmt, args...) \ 193 do { \ 194 if ((x) & cx18_debug) \ 195 v4l2_info(dev, " " type ": " fmt , ## args); \ 196 } while (0) 197 #define CX18_DEBUG_WARN_DEV(dev, fmt, args...) \ 198 CX18_DEBUG_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args) 199 #define CX18_DEBUG_INFO_DEV(dev, fmt, args...) \ 200 CX18_DEBUG_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args) 201 #define CX18_DEBUG_API_DEV(dev, fmt, args...) \ 202 CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args) 203 #define CX18_DEBUG_DMA_DEV(dev, fmt, args...) \ 204 CX18_DEBUG_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args) 205 #define CX18_DEBUG_IOCTL_DEV(dev, fmt, args...) \ 206 CX18_DEBUG_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args) 207 #define CX18_DEBUG_FILE_DEV(dev, fmt, args...) \ 208 CX18_DEBUG_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args) 209 #define CX18_DEBUG_I2C_DEV(dev, fmt, args...) \ 210 CX18_DEBUG_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args) 211 #define CX18_DEBUG_IRQ_DEV(dev, fmt, args...) \ 212 CX18_DEBUG_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args) 213 214 #define CX18_DEBUG_HIGH_VOL_DEV(x, dev, type, fmt, args...) \ 215 do { \ 216 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \ 217 v4l2_info(dev, " " type ": " fmt , ## args); \ 218 } while (0) 219 #define CX18_DEBUG_HI_WARN_DEV(dev, fmt, args...) \ 220 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args) 221 #define CX18_DEBUG_HI_INFO_DEV(dev, fmt, args...) \ 222 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args) 223 #define CX18_DEBUG_HI_API_DEV(dev, fmt, args...) \ 224 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args) 225 #define CX18_DEBUG_HI_DMA_DEV(dev, fmt, args...) \ 226 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args) 227 #define CX18_DEBUG_HI_IOCTL_DEV(dev, fmt, args...) \ 228 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args) 229 #define CX18_DEBUG_HI_FILE_DEV(dev, fmt, args...) \ 230 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args) 231 #define CX18_DEBUG_HI_I2C_DEV(dev, fmt, args...) \ 232 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args) 233 #define CX18_DEBUG_HI_IRQ_DEV(dev, fmt, args...) \ 234 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args) 235 236 #define CX18_ERR_DEV(dev, fmt, args...) v4l2_err(dev, fmt , ## args) 237 #define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args) 238 #define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args) 239 240 extern int cx18_debug; 241 242 struct cx18_options { 243 int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */ 244 int cardtype; /* force card type on load */ 245 int tuner; /* set tuner on load */ 246 int radio; /* enable/disable radio */ 247 }; 248 249 /* per-mdl bit flags */ 250 #define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianness swapped */ 251 252 /* per-stream, s_flags */ 253 #define CX18_F_S_CLAIMED 3 /* this stream is claimed */ 254 #define CX18_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */ 255 #define CX18_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */ 256 #define CX18_F_S_STREAMOFF 7 /* signal end of stream EOS */ 257 #define CX18_F_S_APPL_IO 8 /* this stream is used read/written by an application */ 258 #define CX18_F_S_STOPPING 9 /* telling the fw to stop capturing */ 259 260 /* per-cx18, i_flags */ 261 #define CX18_F_I_LOADED_FW 0 /* Loaded firmware 1st time */ 262 #define CX18_F_I_EOS 4 /* End of encoder stream */ 263 #define CX18_F_I_RADIO_USER 5 /* radio tuner is selected */ 264 #define CX18_F_I_ENC_PAUSED 13 /* the encoder is paused */ 265 #define CX18_F_I_INITED 21 /* set after first open */ 266 #define CX18_F_I_FAILED 22 /* set if first open failed */ 267 268 /* These are the VBI types as they appear in the embedded VBI private packets. */ 269 #define CX18_SLICED_TYPE_TELETEXT_B (1) 270 #define CX18_SLICED_TYPE_CAPTION_525 (4) 271 #define CX18_SLICED_TYPE_WSS_625 (5) 272 #define CX18_SLICED_TYPE_VPS (7) 273 274 /** 275 * list_entry_is_past_end - check if a previous loop cursor is off list end 276 * @pos: the type * previously used as a loop cursor. 277 * @head: the head for your list. 278 * @member: the name of the list_head within the struct. 279 * 280 * Check if the entry's list_head is the head of the list, thus it's not a 281 * real entry but was the loop cursor that walked past the end 282 */ 283 #define list_entry_is_past_end(pos, head, member) \ 284 (&pos->member == (head)) 285 286 struct cx18_vb2_buffer { 287 /* Common video buffer sub-system struct */ 288 struct vb2_v4l2_buffer vb; 289 struct list_head list; 290 v4l2_std_id tvnorm; /* selected tv norm */ 291 u32 bytes_used; 292 }; 293 294 struct cx18_buffer { 295 struct list_head list; 296 dma_addr_t dma_handle; 297 char *buf; 298 299 u32 bytesused; 300 u32 readpos; 301 }; 302 303 struct cx18_mdl { 304 struct list_head list; 305 u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */ 306 307 unsigned int skipped; 308 unsigned long m_flags; 309 310 struct list_head buf_list; 311 struct cx18_buffer *curr_buf; /* current buffer in list for reading */ 312 313 u32 bytesused; 314 u32 readpos; 315 }; 316 317 struct cx18_queue { 318 struct list_head list; 319 atomic_t depth; 320 u32 bytesused; 321 spinlock_t lock; 322 }; 323 324 struct cx18_stream; /* forward reference */ 325 326 struct cx18_dvb { 327 struct cx18_stream *stream; 328 struct dmx_frontend hw_frontend; 329 struct dmx_frontend mem_frontend; 330 struct dmxdev dmxdev; 331 struct dvb_adapter dvb_adapter; 332 struct dvb_demux demux; 333 struct dvb_frontend *fe; 334 struct dvb_net dvbnet; 335 int enabled; 336 int feeding; 337 struct mutex feedlock; 338 }; 339 340 struct cx18; /* forward reference */ 341 struct cx18_scb; /* forward reference */ 342 343 344 #define CX18_MAX_MDL_ACKS 2 345 #define CX18_MAX_IN_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7) 346 /* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */ 347 348 #define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1 349 #define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2 350 #define CX18_F_EWO_MB_STALE \ 351 (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC) 352 353 struct cx18_in_work_order { 354 struct work_struct work; 355 atomic_t pending; 356 struct cx18 *cx; 357 unsigned long flags; 358 int rpu; 359 struct cx18_mailbox mb; 360 struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS]; 361 char *str; 362 }; 363 364 #define CX18_INVALID_TASK_HANDLE 0xffffffff 365 366 struct cx18_stream { 367 /* These first five fields are always set, even if the stream 368 is not actually created. */ 369 struct video_device video_dev; /* v4l2_dev is NULL when stream not created */ 370 struct cx18_dvb *dvb; /* DVB / Digital Transport */ 371 struct cx18 *cx; /* for ease of use */ 372 const char *name; /* name of the stream */ 373 int type; /* stream type */ 374 u32 handle; /* task handle */ 375 u32 v4l2_dev_caps; /* device capabilities */ 376 unsigned int mdl_base_idx; 377 378 u32 id; 379 unsigned long s_flags; /* status flags, see above */ 380 int dma; /* can be PCI_DMA_TODEVICE, 381 PCI_DMA_FROMDEVICE or 382 PCI_DMA_NONE */ 383 wait_queue_head_t waitq; 384 385 /* Buffers */ 386 struct list_head buf_pool; /* buffers not attached to an MDL */ 387 u32 buffers; /* total buffers owned by this stream */ 388 u32 buf_size; /* size in bytes of a single buffer */ 389 390 /* MDL sizes - all stream MDLs are the same size */ 391 u32 bufs_per_mdl; 392 u32 mdl_size; /* total bytes in all buffers in a mdl */ 393 394 /* MDL Queues */ 395 struct cx18_queue q_free; /* free - in rotation, not committed */ 396 struct cx18_queue q_busy; /* busy - in use by firmware */ 397 struct cx18_queue q_full; /* full - data for user apps */ 398 struct cx18_queue q_idle; /* idle - not in rotation */ 399 400 struct work_struct out_work_order; 401 402 /* Videobuf for YUV video */ 403 u32 pixelformat; 404 u32 vb_bytes_per_frame; 405 u32 vb_bytes_per_line; 406 struct list_head vb_capture; /* video capture queue */ 407 spinlock_t vb_lock; 408 struct timer_list vb_timeout; 409 u32 sequence; 410 411 struct vb2_queue vidq; 412 enum v4l2_buf_type vb_type; 413 }; 414 415 struct cx18_open_id { 416 struct v4l2_fh fh; 417 u32 open_id; 418 int type; 419 struct cx18 *cx; 420 }; 421 fh2id(struct v4l2_fh * fh)422 static inline struct cx18_open_id *fh2id(struct v4l2_fh *fh) 423 { 424 return container_of(fh, struct cx18_open_id, fh); 425 } 426 file2id(struct file * file)427 static inline struct cx18_open_id *file2id(struct file *file) 428 { 429 return fh2id(file->private_data); 430 } 431 432 /* forward declaration of struct defined in cx18-cards.h */ 433 struct cx18_card; 434 435 /* 436 * A note about "sliced" VBI data as implemented in this driver: 437 * 438 * Currently we collect the sliced VBI in the form of Ancillary Data 439 * packets, inserted by the AV core decoder/digitizer/slicer in the 440 * horizontal blanking region of the VBI lines, in "raw" mode as far as 441 * the Encoder is concerned. We don't ever tell the Encoder itself 442 * to provide sliced VBI. (AV Core: sliced mode - Encoder: raw mode) 443 * 444 * We then process the ancillary data ourselves to send the sliced data 445 * to the user application directly or build up MPEG-2 private stream 1 446 * packets to splice into (only!) MPEG-2 PS streams for the user app. 447 * 448 * (That's how ivtv essentially does it.) 449 * 450 * The Encoder should be able to extract certain sliced VBI data for 451 * us and provide it in a separate stream or splice it into any type of 452 * MPEG PS or TS stream, but this isn't implemented yet. 453 */ 454 455 /* 456 * Number of "raw" VBI samples per horizontal line we tell the Encoder to 457 * grab from the decoder/digitizer/slicer output for raw or sliced VBI. 458 * It depends on the pixel clock and the horiz rate: 459 * 460 * (1/Fh)*(2*Fp) = Samples/line 461 * = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples 462 * 463 * Sliced VBI data is sent as ancillary data during horizontal blanking 464 * Raw VBI is sent as active video samples during vertcal blanking 465 * 466 * We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line 467 * length of 720 pixels @ 4:2:2 sampling. Thus... 468 * 469 * For systems that use a 15.734 kHz horizontal rate, such as 470 * NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have: 471 * 472 * (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line = 473 * 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples 474 * 475 * For systems that use a 15.625 kHz horizontal rate, such as 476 * PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have: 477 * 478 * (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line = 479 * 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples 480 */ 481 #define VBI_ACTIVE_SAMPLES 1444 /* 4 byte SAV + 720 Y + 720 U/V */ 482 #define VBI_HBLANK_SAMPLES_60HZ 272 /* 4 byte EAV + 268 anc/fill */ 483 #define VBI_HBLANK_SAMPLES_50HZ 284 /* 4 byte EAV + 280 anc/fill */ 484 485 #define CX18_VBI_FRAMES 32 486 487 struct vbi_info { 488 /* Current state of v4l2 VBI settings for this device */ 489 struct v4l2_format in; 490 struct v4l2_sliced_vbi_format *sliced_in; /* pointer to in.fmt.sliced */ 491 u32 count; /* Count of VBI data lines: 60 Hz: 12 or 50 Hz: 18 */ 492 u32 start[2]; /* First VBI data line per field: 10 & 273 or 6 & 318 */ 493 494 u32 frame; /* Count of VBI buffers/frames received from Encoder */ 495 496 /* 497 * Vars for creation and insertion of MPEG Private Stream 1 packets 498 * of sliced VBI data into an MPEG PS 499 */ 500 501 /* Boolean: create and insert Private Stream 1 packets into the PS */ 502 int insert_mpeg; 503 504 /* 505 * Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines. 506 * Used in cx18-vbi.c only for collecting sliced data, and as a source 507 * during conversion of sliced VBI data into MPEG Priv Stream 1 packets. 508 * We don't need to save state here, but the array may have been a bit 509 * too big (2304 bytes) to alloc from the stack. 510 */ 511 struct v4l2_sliced_vbi_data sliced_data[36]; 512 513 /* 514 * A ring buffer of driver-generated MPEG-2 PS 515 * Program Pack/Private Stream 1 packets for sliced VBI data insertion 516 * into the MPEG PS stream. 517 * 518 * In each sliced_mpeg_data[] buffer is: 519 * 16 byte MPEG-2 PS Program Pack Header 520 * 16 byte MPEG-2 Private Stream 1 PES Header 521 * 4 byte magic number: "itv0" or "ITV0" 522 * 4 byte first field line mask, if "itv0" 523 * 4 byte second field line mask, if "itv0" 524 * 36 lines, if "ITV0"; or <36 lines, if "itv0"; of sliced VBI data 525 * 526 * Each line in the payload is 527 * 1 byte line header derived from the SDID (WSS, CC, VPS, etc.) 528 * 42 bytes of line data 529 * 530 * That's a maximum 1552 bytes of payload in the Private Stream 1 packet 531 * which is the payload size a PVR-350 (CX23415) MPEG decoder will 532 * accept for VBI data. So, including the headers, it's a maximum 1584 533 * bytes total. 534 */ 535 #define CX18_SLICED_MPEG_DATA_MAXSZ 1584 536 /* copy_vbi_buf() needs 8 temp bytes on the end for the worst case */ 537 #define CX18_SLICED_MPEG_DATA_BUFSZ (CX18_SLICED_MPEG_DATA_MAXSZ+8) 538 u8 *sliced_mpeg_data[CX18_VBI_FRAMES]; 539 u32 sliced_mpeg_size[CX18_VBI_FRAMES]; 540 541 /* Count of Program Pack/Program Stream 1 packets inserted into PS */ 542 u32 inserted_frame; 543 544 /* 545 * A dummy driver stream transfer mdl & buffer with a copy of the next 546 * sliced_mpeg_data[] buffer for output to userland apps. 547 * Only used in cx18-fileops.c, but its state needs to persist at times. 548 */ 549 struct cx18_mdl sliced_mpeg_mdl; 550 struct cx18_buffer sliced_mpeg_buf; 551 }; 552 553 /* Per cx23418, per I2C bus private algo callback data */ 554 struct cx18_i2c_algo_callback_data { 555 struct cx18 *cx; 556 int bus_index; /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */ 557 }; 558 559 #define CX18_MAX_MMIO_WR_RETRIES 10 560 561 /* Struct to hold info about cx18 cards */ 562 struct cx18 { 563 int instance; 564 struct pci_dev *pci_dev; 565 struct v4l2_device v4l2_dev; 566 struct v4l2_subdev *sd_av; /* A/V decoder/digitizer sub-device */ 567 struct v4l2_subdev *sd_extmux; /* External multiplexer sub-dev */ 568 569 const struct cx18_card *card; /* card information */ 570 const char *card_name; /* full name of the card */ 571 const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */ 572 u8 is_50hz; 573 u8 is_60hz; 574 u8 nof_inputs; /* number of video inputs */ 575 u8 nof_audio_inputs; /* number of audio inputs */ 576 u32 v4l2_cap; /* V4L2 capabilities of card */ 577 u32 hw_flags; /* Hardware description of the board */ 578 unsigned int free_mdl_idx; 579 struct cx18_scb __iomem *scb; /* pointer to SCB */ 580 struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/ 581 struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/ 582 583 struct cx18_av_state av_state; 584 585 /* codec settings */ 586 struct cx2341x_handler cxhdl; 587 u32 filter_mode; 588 u32 temporal_strength; 589 u32 spatial_strength; 590 591 /* dualwatch */ 592 unsigned long dualwatch_jiffies; 593 u32 dualwatch_stereo_mode; 594 595 struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */ 596 struct cx18_options options; /* User options */ 597 int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */ 598 int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */ 599 struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */ 600 struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */ 601 void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data, 602 size_t num_bytes); 603 604 unsigned long i_flags; /* global cx18 flags */ 605 atomic_t ana_capturing; /* count number of active analog capture streams */ 606 atomic_t tot_capturing; /* total count number of active capture streams */ 607 int search_pack_header; 608 609 int open_id; /* incremented each time an open occurs, used as 610 unique ID. Starts at 1, so 0 can be used as 611 uninitialized value in the stream->id. */ 612 613 resource_size_t base_addr; 614 615 u8 card_rev; 616 void __iomem *enc_mem, *reg_mem; 617 618 struct vbi_info vbi; 619 620 u64 mpg_data_received; 621 u64 vbi_data_inserted; 622 623 wait_queue_head_t mb_apu_waitq; 624 wait_queue_head_t mb_cpu_waitq; 625 wait_queue_head_t cap_w; 626 /* when the current DMA is finished this queue is woken up */ 627 wait_queue_head_t dma_waitq; 628 629 u32 sw1_irq_mask; 630 u32 sw2_irq_mask; 631 u32 hw2_irq_mask; 632 633 struct workqueue_struct *in_work_queue; 634 char in_workq_name[39]; /* "cx18-NN-in" */ 635 struct cx18_in_work_order in_work_order[CX18_MAX_IN_WORK_ORDERS]; 636 char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */ 637 638 /* i2c */ 639 struct i2c_adapter i2c_adap[2]; 640 struct i2c_algo_bit_data i2c_algo[2]; 641 struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2]; 642 643 struct IR_i2c_init_data ir_i2c_init_data; 644 645 /* gpio */ 646 u32 gpio_dir; 647 u32 gpio_val; 648 struct mutex gpio_lock; 649 struct v4l2_subdev sd_gpiomux; 650 struct v4l2_subdev sd_resetctrl; 651 652 /* v4l2 and User settings */ 653 654 /* codec settings */ 655 u32 audio_input; 656 u32 active_input; 657 v4l2_std_id std; 658 v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */ 659 660 /* Used for cx18-alsa module loading */ 661 struct work_struct request_module_wk; 662 }; 663 to_cx18(struct v4l2_device * v4l2_dev)664 static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev) 665 { 666 return container_of(v4l2_dev, struct cx18, v4l2_dev); 667 } 668 669 /* cx18 extensions to be loaded */ 670 extern int (*cx18_ext_init)(struct cx18 *); 671 672 /* Globals */ 673 extern int cx18_first_minor; 674 675 /*==============Prototypes==================*/ 676 677 /* Return non-zero if a signal is pending */ 678 int cx18_msleep_timeout(unsigned int msecs, int intr); 679 680 /* Read Hauppauge eeprom */ 681 struct tveeprom; /* forward reference */ 682 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv); 683 684 /* First-open initialization: load firmware, etc. */ 685 int cx18_init_on_first_open(struct cx18 *cx); 686 687 /* Test if the current VBI mode is raw (1) or sliced (0) */ cx18_raw_vbi(const struct cx18 * cx)688 static inline int cx18_raw_vbi(const struct cx18 *cx) 689 { 690 return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE; 691 } 692 693 /* Call the specified callback for all subdevs with a grp_id bit matching the 694 * mask in hw (if 0, then match them all). Ignore any errors. */ 695 #define cx18_call_hw(cx, hw, o, f, args...) \ 696 v4l2_device_mask_call_all(&(cx)->v4l2_dev, hw, o, f, ##args) 697 698 #define cx18_call_all(cx, o, f, args...) cx18_call_hw(cx, 0, o, f , ##args) 699 700 /* Call the specified callback for all subdevs with a grp_id bit matching the 701 * mask in hw (if 0, then match them all). If the callback returns an error 702 * other than 0 or -ENOIOCTLCMD, then return with that error code. */ 703 #define cx18_call_hw_err(cx, hw, o, f, args...) \ 704 v4l2_device_mask_call_until_err(&(cx)->v4l2_dev, hw, o, f, ##args) 705 706 #define cx18_call_all_err(cx, o, f, args...) \ 707 cx18_call_hw_err(cx, 0, o, f , ##args) 708 709 #endif /* CX18_DRIVER_H */ 710