1 /* 2 cx231xx-video.c - driver for Conexant Cx23100/101/102 3 USB video capture devices 4 5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com> 6 Based on em28xx driver 7 Based on cx23885 driver 8 Based on cx88 driver 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 */ 24 25 #include "cx231xx.h" 26 #include <linux/init.h> 27 #include <linux/list.h> 28 #include <linux/module.h> 29 #include <linux/kernel.h> 30 #include <linux/bitmap.h> 31 #include <linux/i2c.h> 32 #include <linux/mm.h> 33 #include <linux/mutex.h> 34 #include <linux/slab.h> 35 36 #include <media/v4l2-common.h> 37 #include <media/v4l2-ioctl.h> 38 #include <media/v4l2-event.h> 39 #include <media/msp3400.h> 40 #include <media/tuner.h> 41 42 #include "dvb_frontend.h" 43 44 #include "cx231xx-vbi.h" 45 46 #define CX231XX_VERSION "0.0.3" 47 48 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>" 49 #define DRIVER_DESC "Conexant cx231xx based USB video device driver" 50 51 #define cx231xx_videodbg(fmt, arg...) do {\ 52 if (video_debug) \ 53 printk(KERN_INFO "%s %s :"fmt, \ 54 dev->name, __func__ , ##arg); } while (0) 55 56 static unsigned int isoc_debug; 57 module_param(isoc_debug, int, 0644); 58 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 59 60 #define cx231xx_isocdbg(fmt, arg...) \ 61 do {\ 62 if (isoc_debug) { \ 63 printk(KERN_INFO "%s %s :"fmt, \ 64 dev->name, __func__ , ##arg); \ 65 } \ 66 } while (0) 67 68 MODULE_AUTHOR(DRIVER_AUTHOR); 69 MODULE_DESCRIPTION(DRIVER_DESC); 70 MODULE_LICENSE("GPL"); 71 MODULE_VERSION(CX231XX_VERSION); 72 73 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 74 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 75 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 76 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 77 78 module_param_array(card, int, NULL, 0444); 79 module_param_array(video_nr, int, NULL, 0444); 80 module_param_array(vbi_nr, int, NULL, 0444); 81 module_param_array(radio_nr, int, NULL, 0444); 82 83 MODULE_PARM_DESC(card, "card type"); 84 MODULE_PARM_DESC(video_nr, "video device numbers"); 85 MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 86 MODULE_PARM_DESC(radio_nr, "radio device numbers"); 87 88 static unsigned int video_debug; 89 module_param(video_debug, int, 0644); 90 MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 91 92 /* supported video standards */ 93 static struct cx231xx_fmt format[] = { 94 { 95 .name = "16bpp YUY2, 4:2:2, packed", 96 .fourcc = V4L2_PIX_FMT_YUYV, 97 .depth = 16, 98 .reg = 0, 99 }, 100 }; 101 102 103 static int cx231xx_enable_analog_tuner(struct cx231xx *dev) 104 { 105 #ifdef CONFIG_MEDIA_CONTROLLER 106 struct media_device *mdev = dev->media_dev; 107 struct media_entity *entity, *decoder = NULL, *source; 108 struct media_link *link, *found_link = NULL; 109 int i, ret, active_links = 0; 110 111 if (!mdev) 112 return 0; 113 114 /* 115 * This will find the tuner that is connected into the decoder. 116 * Technically, this is not 100% correct, as the device may be 117 * using an analog input instead of the tuner. However, as we can't 118 * do DVB streaming while the DMA engine is being used for V4L2, 119 * this should be enough for the actual needs. 120 */ 121 media_device_for_each_entity(entity, mdev) { 122 if (entity->type == MEDIA_ENT_T_V4L2_SUBDEV_DECODER) { 123 decoder = entity; 124 break; 125 } 126 } 127 if (!decoder) 128 return 0; 129 130 for (i = 0; i < decoder->num_links; i++) { 131 link = &decoder->links[i]; 132 if (link->sink->entity == decoder) { 133 found_link = link; 134 if (link->flags & MEDIA_LNK_FL_ENABLED) 135 active_links++; 136 break; 137 } 138 } 139 140 if (active_links == 1 || !found_link) 141 return 0; 142 143 source = found_link->source->entity; 144 for (i = 0; i < source->num_links; i++) { 145 struct media_entity *sink; 146 int flags = 0; 147 148 link = &source->links[i]; 149 sink = link->sink->entity; 150 151 if (sink == entity) 152 flags = MEDIA_LNK_FL_ENABLED; 153 154 ret = media_entity_setup_link(link, flags); 155 if (ret) { 156 dev_err(dev->dev, 157 "Couldn't change link %s->%s to %s. Error %d\n", 158 source->name, sink->name, 159 flags ? "enabled" : "disabled", 160 ret); 161 return ret; 162 } else 163 dev_dbg(dev->dev, 164 "link %s->%s was %s\n", 165 source->name, sink->name, 166 flags ? "ENABLED" : "disabled"); 167 } 168 #endif 169 return 0; 170 } 171 172 /* ------------------------------------------------------------------ 173 Video buffer and parser functions 174 ------------------------------------------------------------------*/ 175 176 /* 177 * Announces that a buffer were filled and request the next 178 */ 179 static inline void buffer_filled(struct cx231xx *dev, 180 struct cx231xx_dmaqueue *dma_q, 181 struct cx231xx_buffer *buf) 182 { 183 /* Advice that buffer was filled */ 184 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 185 buf->vb.state = VIDEOBUF_DONE; 186 buf->vb.field_count++; 187 v4l2_get_timestamp(&buf->vb.ts); 188 189 if (dev->USE_ISO) 190 dev->video_mode.isoc_ctl.buf = NULL; 191 else 192 dev->video_mode.bulk_ctl.buf = NULL; 193 194 list_del(&buf->vb.queue); 195 wake_up(&buf->vb.done); 196 } 197 198 static inline void print_err_status(struct cx231xx *dev, int packet, int status) 199 { 200 char *errmsg = "Unknown"; 201 202 switch (status) { 203 case -ENOENT: 204 errmsg = "unlinked synchronuously"; 205 break; 206 case -ECONNRESET: 207 errmsg = "unlinked asynchronuously"; 208 break; 209 case -ENOSR: 210 errmsg = "Buffer error (overrun)"; 211 break; 212 case -EPIPE: 213 errmsg = "Stalled (device not responding)"; 214 break; 215 case -EOVERFLOW: 216 errmsg = "Babble (bad cable?)"; 217 break; 218 case -EPROTO: 219 errmsg = "Bit-stuff error (bad cable?)"; 220 break; 221 case -EILSEQ: 222 errmsg = "CRC/Timeout (could be anything)"; 223 break; 224 case -ETIME: 225 errmsg = "Device does not respond"; 226 break; 227 } 228 if (packet < 0) { 229 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg); 230 } else { 231 cx231xx_isocdbg("URB packet %d, status %d [%s].\n", 232 packet, status, errmsg); 233 } 234 } 235 236 /* 237 * video-buf generic routine to get the next available buffer 238 */ 239 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q, 240 struct cx231xx_buffer **buf) 241 { 242 struct cx231xx_video_mode *vmode = 243 container_of(dma_q, struct cx231xx_video_mode, vidq); 244 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode); 245 246 char *outp; 247 248 if (list_empty(&dma_q->active)) { 249 cx231xx_isocdbg("No active queue to serve\n"); 250 if (dev->USE_ISO) 251 dev->video_mode.isoc_ctl.buf = NULL; 252 else 253 dev->video_mode.bulk_ctl.buf = NULL; 254 *buf = NULL; 255 return; 256 } 257 258 /* Get the next buffer */ 259 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue); 260 261 /* Cleans up buffer - Useful for testing for frame/URB loss */ 262 outp = videobuf_to_vmalloc(&(*buf)->vb); 263 memset(outp, 0, (*buf)->vb.size); 264 265 if (dev->USE_ISO) 266 dev->video_mode.isoc_ctl.buf = *buf; 267 else 268 dev->video_mode.bulk_ctl.buf = *buf; 269 270 return; 271 } 272 273 /* 274 * Controls the isoc copy of each urb packet 275 */ 276 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb) 277 { 278 struct cx231xx_dmaqueue *dma_q = urb->context; 279 int i; 280 unsigned char *p_buffer; 281 u32 bytes_parsed = 0, buffer_size = 0; 282 u8 sav_eav = 0; 283 284 if (!dev) 285 return 0; 286 287 if (dev->state & DEV_DISCONNECTED) 288 return 0; 289 290 if (urb->status < 0) { 291 print_err_status(dev, -1, urb->status); 292 if (urb->status == -ENOENT) 293 return 0; 294 } 295 296 for (i = 0; i < urb->number_of_packets; i++) { 297 int status = urb->iso_frame_desc[i].status; 298 299 if (status < 0) { 300 print_err_status(dev, i, status); 301 if (urb->iso_frame_desc[i].status != -EPROTO) 302 continue; 303 } 304 305 if (urb->iso_frame_desc[i].actual_length <= 0) { 306 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */ 307 continue; 308 } 309 if (urb->iso_frame_desc[i].actual_length > 310 dev->video_mode.max_pkt_size) { 311 cx231xx_isocdbg("packet bigger than packet size"); 312 continue; 313 } 314 315 /* get buffer pointer and length */ 316 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 317 buffer_size = urb->iso_frame_desc[i].actual_length; 318 bytes_parsed = 0; 319 320 if (dma_q->is_partial_line) { 321 /* Handle the case of a partial line */ 322 sav_eav = dma_q->last_sav; 323 } else { 324 /* Check for a SAV/EAV overlapping 325 the buffer boundary */ 326 sav_eav = 327 cx231xx_find_boundary_SAV_EAV(p_buffer, 328 dma_q->partial_buf, 329 &bytes_parsed); 330 } 331 332 sav_eav &= 0xF0; 333 /* Get the first line if we have some portion of an SAV/EAV from 334 the last buffer or a partial line */ 335 if (sav_eav) { 336 bytes_parsed += cx231xx_get_video_line(dev, dma_q, 337 sav_eav, /* SAV/EAV */ 338 p_buffer + bytes_parsed, /* p_buffer */ 339 buffer_size - bytes_parsed);/* buf size */ 340 } 341 342 /* Now parse data that is completely in this buffer */ 343 /* dma_q->is_partial_line = 0; */ 344 345 while (bytes_parsed < buffer_size) { 346 u32 bytes_used = 0; 347 348 sav_eav = cx231xx_find_next_SAV_EAV( 349 p_buffer + bytes_parsed, /* p_buffer */ 350 buffer_size - bytes_parsed, /* buf size */ 351 &bytes_used);/* bytes used to get SAV/EAV */ 352 353 bytes_parsed += bytes_used; 354 355 sav_eav &= 0xF0; 356 if (sav_eav && (bytes_parsed < buffer_size)) { 357 bytes_parsed += cx231xx_get_video_line(dev, 358 dma_q, sav_eav, /* SAV/EAV */ 359 p_buffer + bytes_parsed,/* p_buffer */ 360 buffer_size - bytes_parsed);/*buf size*/ 361 } 362 } 363 364 /* Save the last four bytes of the buffer so we can check the 365 buffer boundary condition next time */ 366 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); 367 bytes_parsed = 0; 368 369 } 370 return 1; 371 } 372 373 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb) 374 { 375 struct cx231xx_dmaqueue *dma_q = urb->context; 376 unsigned char *p_buffer; 377 u32 bytes_parsed = 0, buffer_size = 0; 378 u8 sav_eav = 0; 379 380 if (!dev) 381 return 0; 382 383 if (dev->state & DEV_DISCONNECTED) 384 return 0; 385 386 if (urb->status < 0) { 387 print_err_status(dev, -1, urb->status); 388 if (urb->status == -ENOENT) 389 return 0; 390 } 391 392 if (1) { 393 394 /* get buffer pointer and length */ 395 p_buffer = urb->transfer_buffer; 396 buffer_size = urb->actual_length; 397 bytes_parsed = 0; 398 399 if (dma_q->is_partial_line) { 400 /* Handle the case of a partial line */ 401 sav_eav = dma_q->last_sav; 402 } else { 403 /* Check for a SAV/EAV overlapping 404 the buffer boundary */ 405 sav_eav = 406 cx231xx_find_boundary_SAV_EAV(p_buffer, 407 dma_q->partial_buf, 408 &bytes_parsed); 409 } 410 411 sav_eav &= 0xF0; 412 /* Get the first line if we have some portion of an SAV/EAV from 413 the last buffer or a partial line */ 414 if (sav_eav) { 415 bytes_parsed += cx231xx_get_video_line(dev, dma_q, 416 sav_eav, /* SAV/EAV */ 417 p_buffer + bytes_parsed, /* p_buffer */ 418 buffer_size - bytes_parsed);/* buf size */ 419 } 420 421 /* Now parse data that is completely in this buffer */ 422 /* dma_q->is_partial_line = 0; */ 423 424 while (bytes_parsed < buffer_size) { 425 u32 bytes_used = 0; 426 427 sav_eav = cx231xx_find_next_SAV_EAV( 428 p_buffer + bytes_parsed, /* p_buffer */ 429 buffer_size - bytes_parsed, /* buf size */ 430 &bytes_used);/* bytes used to get SAV/EAV */ 431 432 bytes_parsed += bytes_used; 433 434 sav_eav &= 0xF0; 435 if (sav_eav && (bytes_parsed < buffer_size)) { 436 bytes_parsed += cx231xx_get_video_line(dev, 437 dma_q, sav_eav, /* SAV/EAV */ 438 p_buffer + bytes_parsed,/* p_buffer */ 439 buffer_size - bytes_parsed);/*buf size*/ 440 } 441 } 442 443 /* Save the last four bytes of the buffer so we can check the 444 buffer boundary condition next time */ 445 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); 446 bytes_parsed = 0; 447 448 } 449 return 1; 450 } 451 452 453 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf, 454 u32 *p_bytes_used) 455 { 456 u32 bytes_used; 457 u8 boundary_bytes[8]; 458 u8 sav_eav = 0; 459 460 *p_bytes_used = 0; 461 462 /* Create an array of the last 4 bytes of the last buffer and the first 463 4 bytes of the current buffer. */ 464 465 memcpy(boundary_bytes, partial_buf, 4); 466 memcpy(boundary_bytes + 4, p_buffer, 4); 467 468 /* Check for the SAV/EAV in the boundary buffer */ 469 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8, 470 &bytes_used); 471 472 if (sav_eav) { 473 /* found a boundary SAV/EAV. Updates the bytes used to reflect 474 only those used in the new buffer */ 475 *p_bytes_used = bytes_used - 4; 476 } 477 478 return sav_eav; 479 } 480 481 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used) 482 { 483 u32 i; 484 u8 sav_eav = 0; 485 486 /* 487 * Don't search if the buffer size is less than 4. It causes a page 488 * fault since buffer_size - 4 evaluates to a large number in that 489 * case. 490 */ 491 if (buffer_size < 4) { 492 *p_bytes_used = buffer_size; 493 return 0; 494 } 495 496 for (i = 0; i < (buffer_size - 3); i++) { 497 498 if ((p_buffer[i] == 0xFF) && 499 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) { 500 501 *p_bytes_used = i + 4; 502 sav_eav = p_buffer[i + 3]; 503 return sav_eav; 504 } 505 } 506 507 *p_bytes_used = buffer_size; 508 return 0; 509 } 510 511 u32 cx231xx_get_video_line(struct cx231xx *dev, 512 struct cx231xx_dmaqueue *dma_q, u8 sav_eav, 513 u8 *p_buffer, u32 buffer_size) 514 { 515 u32 bytes_copied = 0; 516 int current_field = -1; 517 518 switch (sav_eav) { 519 case SAV_ACTIVE_VIDEO_FIELD1: 520 /* looking for skipped line which occurred in PAL 720x480 mode. 521 In this case, there will be no active data contained 522 between the SAV and EAV */ 523 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && 524 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && 525 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || 526 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || 527 (p_buffer[3] == EAV_VBLANK_FIELD1) || 528 (p_buffer[3] == EAV_VBLANK_FIELD2))) 529 return bytes_copied; 530 current_field = 1; 531 break; 532 533 case SAV_ACTIVE_VIDEO_FIELD2: 534 /* looking for skipped line which occurred in PAL 720x480 mode. 535 In this case, there will be no active data contained between 536 the SAV and EAV */ 537 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && 538 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && 539 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || 540 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || 541 (p_buffer[3] == EAV_VBLANK_FIELD1) || 542 (p_buffer[3] == EAV_VBLANK_FIELD2))) 543 return bytes_copied; 544 current_field = 2; 545 break; 546 } 547 548 dma_q->last_sav = sav_eav; 549 550 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer, 551 buffer_size, current_field); 552 553 return bytes_copied; 554 } 555 556 u32 cx231xx_copy_video_line(struct cx231xx *dev, 557 struct cx231xx_dmaqueue *dma_q, u8 *p_line, 558 u32 length, int field_number) 559 { 560 u32 bytes_to_copy; 561 struct cx231xx_buffer *buf; 562 u32 _line_size = dev->width * 2; 563 564 if (dma_q->current_field != field_number) 565 cx231xx_reset_video_buffer(dev, dma_q); 566 567 /* get the buffer pointer */ 568 if (dev->USE_ISO) 569 buf = dev->video_mode.isoc_ctl.buf; 570 else 571 buf = dev->video_mode.bulk_ctl.buf; 572 573 /* Remember the field number for next time */ 574 dma_q->current_field = field_number; 575 576 bytes_to_copy = dma_q->bytes_left_in_line; 577 if (bytes_to_copy > length) 578 bytes_to_copy = length; 579 580 if (dma_q->lines_completed >= dma_q->lines_per_field) { 581 dma_q->bytes_left_in_line -= bytes_to_copy; 582 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 583 0 : 1; 584 return 0; 585 } 586 587 dma_q->is_partial_line = 1; 588 589 /* If we don't have a buffer, just return the number of bytes we would 590 have copied if we had a buffer. */ 591 if (!buf) { 592 dma_q->bytes_left_in_line -= bytes_to_copy; 593 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) 594 ? 0 : 1; 595 return bytes_to_copy; 596 } 597 598 /* copy the data to video buffer */ 599 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy); 600 601 dma_q->pos += bytes_to_copy; 602 dma_q->bytes_left_in_line -= bytes_to_copy; 603 604 if (dma_q->bytes_left_in_line == 0) { 605 dma_q->bytes_left_in_line = _line_size; 606 dma_q->lines_completed++; 607 dma_q->is_partial_line = 0; 608 609 if (cx231xx_is_buffer_done(dev, dma_q) && buf) { 610 buffer_filled(dev, dma_q, buf); 611 612 dma_q->pos = 0; 613 buf = NULL; 614 dma_q->lines_completed = 0; 615 } 616 } 617 618 return bytes_to_copy; 619 } 620 621 void cx231xx_reset_video_buffer(struct cx231xx *dev, 622 struct cx231xx_dmaqueue *dma_q) 623 { 624 struct cx231xx_buffer *buf; 625 626 /* handle the switch from field 1 to field 2 */ 627 if (dma_q->current_field == 1) { 628 if (dma_q->lines_completed >= dma_q->lines_per_field) 629 dma_q->field1_done = 1; 630 else 631 dma_q->field1_done = 0; 632 } 633 634 if (dev->USE_ISO) 635 buf = dev->video_mode.isoc_ctl.buf; 636 else 637 buf = dev->video_mode.bulk_ctl.buf; 638 639 if (buf == NULL) { 640 /* first try to get the buffer */ 641 get_next_buf(dma_q, &buf); 642 643 dma_q->pos = 0; 644 dma_q->field1_done = 0; 645 dma_q->current_field = -1; 646 } 647 648 /* reset the counters */ 649 dma_q->bytes_left_in_line = dev->width << 1; 650 dma_q->lines_completed = 0; 651 } 652 653 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, 654 u8 *p_buffer, u32 bytes_to_copy) 655 { 656 u8 *p_out_buffer = NULL; 657 u32 current_line_bytes_copied = 0; 658 struct cx231xx_buffer *buf; 659 u32 _line_size = dev->width << 1; 660 void *startwrite; 661 int offset, lencopy; 662 663 if (dev->USE_ISO) 664 buf = dev->video_mode.isoc_ctl.buf; 665 else 666 buf = dev->video_mode.bulk_ctl.buf; 667 668 if (buf == NULL) 669 return -1; 670 671 p_out_buffer = videobuf_to_vmalloc(&buf->vb); 672 673 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line; 674 675 /* Offset field 2 one line from the top of the buffer */ 676 offset = (dma_q->current_field == 1) ? 0 : _line_size; 677 678 /* Offset for field 2 */ 679 startwrite = p_out_buffer + offset; 680 681 /* lines already completed in the current field */ 682 startwrite += (dma_q->lines_completed * _line_size * 2); 683 684 /* bytes already completed in the current line */ 685 startwrite += current_line_bytes_copied; 686 687 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ? 688 bytes_to_copy : dma_q->bytes_left_in_line; 689 690 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size)) 691 return 0; 692 693 /* The below copies the UYVY data straight into video buffer */ 694 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy); 695 696 return 0; 697 } 698 699 void cx231xx_swab(u16 *from, u16 *to, u16 len) 700 { 701 u16 i; 702 703 if (len <= 0) 704 return; 705 706 for (i = 0; i < len / 2; i++) 707 to[i] = (from[i] << 8) | (from[i] >> 8); 708 } 709 710 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q) 711 { 712 u8 buffer_complete = 0; 713 714 /* Dual field stream */ 715 buffer_complete = ((dma_q->current_field == 2) && 716 (dma_q->lines_completed >= dma_q->lines_per_field) && 717 dma_q->field1_done); 718 719 return buffer_complete; 720 } 721 722 /* ------------------------------------------------------------------ 723 Videobuf operations 724 ------------------------------------------------------------------*/ 725 726 static int 727 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) 728 { 729 struct cx231xx_fh *fh = vq->priv_data; 730 struct cx231xx *dev = fh->dev; 731 732 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3; 733 if (0 == *count) 734 *count = CX231XX_DEF_BUF; 735 736 if (*count < CX231XX_MIN_BUF) 737 *count = CX231XX_MIN_BUF; 738 739 740 cx231xx_enable_analog_tuner(dev); 741 742 return 0; 743 } 744 745 /* This is called *without* dev->slock held; please keep it that way */ 746 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf) 747 { 748 struct cx231xx_fh *fh = vq->priv_data; 749 struct cx231xx *dev = fh->dev; 750 unsigned long flags = 0; 751 752 BUG_ON(in_interrupt()); 753 754 /* We used to wait for the buffer to finish here, but this didn't work 755 because, as we were keeping the state as VIDEOBUF_QUEUED, 756 videobuf_queue_cancel marked it as finished for us. 757 (Also, it could wedge forever if the hardware was misconfigured.) 758 759 This should be safe; by the time we get here, the buffer isn't 760 queued anymore. If we ever start marking the buffers as 761 VIDEOBUF_ACTIVE, it won't be, though. 762 */ 763 spin_lock_irqsave(&dev->video_mode.slock, flags); 764 if (dev->USE_ISO) { 765 if (dev->video_mode.isoc_ctl.buf == buf) 766 dev->video_mode.isoc_ctl.buf = NULL; 767 } else { 768 if (dev->video_mode.bulk_ctl.buf == buf) 769 dev->video_mode.bulk_ctl.buf = NULL; 770 } 771 spin_unlock_irqrestore(&dev->video_mode.slock, flags); 772 773 videobuf_vmalloc_free(&buf->vb); 774 buf->vb.state = VIDEOBUF_NEEDS_INIT; 775 } 776 777 static int 778 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, 779 enum v4l2_field field) 780 { 781 struct cx231xx_fh *fh = vq->priv_data; 782 struct cx231xx_buffer *buf = 783 container_of(vb, struct cx231xx_buffer, vb); 784 struct cx231xx *dev = fh->dev; 785 int rc = 0, urb_init = 0; 786 787 /* The only currently supported format is 16 bits/pixel */ 788 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth 789 + 7) >> 3; 790 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 791 return -EINVAL; 792 793 buf->vb.width = dev->width; 794 buf->vb.height = dev->height; 795 buf->vb.field = field; 796 797 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 798 rc = videobuf_iolock(vq, &buf->vb, NULL); 799 if (rc < 0) 800 goto fail; 801 } 802 803 if (dev->USE_ISO) { 804 if (!dev->video_mode.isoc_ctl.num_bufs) 805 urb_init = 1; 806 } else { 807 if (!dev->video_mode.bulk_ctl.num_bufs) 808 urb_init = 1; 809 } 810 dev_dbg(dev->dev, 811 "urb_init=%d dev->video_mode.max_pkt_size=%d\n", 812 urb_init, dev->video_mode.max_pkt_size); 813 if (urb_init) { 814 dev->mode_tv = 0; 815 if (dev->USE_ISO) 816 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS, 817 CX231XX_NUM_BUFS, 818 dev->video_mode.max_pkt_size, 819 cx231xx_isoc_copy); 820 else 821 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS, 822 CX231XX_NUM_BUFS, 823 dev->video_mode.max_pkt_size, 824 cx231xx_bulk_copy); 825 if (rc < 0) 826 goto fail; 827 } 828 829 buf->vb.state = VIDEOBUF_PREPARED; 830 831 return 0; 832 833 fail: 834 free_buffer(vq, buf); 835 return rc; 836 } 837 838 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 839 { 840 struct cx231xx_buffer *buf = 841 container_of(vb, struct cx231xx_buffer, vb); 842 struct cx231xx_fh *fh = vq->priv_data; 843 struct cx231xx *dev = fh->dev; 844 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq; 845 846 buf->vb.state = VIDEOBUF_QUEUED; 847 list_add_tail(&buf->vb.queue, &vidq->active); 848 849 } 850 851 static void buffer_release(struct videobuf_queue *vq, 852 struct videobuf_buffer *vb) 853 { 854 struct cx231xx_buffer *buf = 855 container_of(vb, struct cx231xx_buffer, vb); 856 struct cx231xx_fh *fh = vq->priv_data; 857 struct cx231xx *dev = (struct cx231xx *)fh->dev; 858 859 cx231xx_isocdbg("cx231xx: called buffer_release\n"); 860 861 free_buffer(vq, buf); 862 } 863 864 static struct videobuf_queue_ops cx231xx_video_qops = { 865 .buf_setup = buffer_setup, 866 .buf_prepare = buffer_prepare, 867 .buf_queue = buffer_queue, 868 .buf_release = buffer_release, 869 }; 870 871 /********************* v4l2 interface **************************************/ 872 873 void video_mux(struct cx231xx *dev, int index) 874 { 875 dev->video_input = index; 876 dev->ctl_ainput = INPUT(index)->amux; 877 878 cx231xx_set_video_input_mux(dev, index); 879 880 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0); 881 882 cx231xx_set_audio_input(dev, dev->ctl_ainput); 883 884 dev_dbg(dev->dev, "video_mux : %d\n", index); 885 886 /* do mode control overrides if required */ 887 cx231xx_do_mode_ctrl_overrides(dev); 888 } 889 890 /* Usage lock check functions */ 891 static int res_get(struct cx231xx_fh *fh) 892 { 893 struct cx231xx *dev = fh->dev; 894 int rc = 0; 895 896 /* This instance already has stream_on */ 897 if (fh->stream_on) 898 return rc; 899 900 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 901 if (dev->stream_on) 902 return -EBUSY; 903 dev->stream_on = 1; 904 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 905 if (dev->vbi_stream_on) 906 return -EBUSY; 907 dev->vbi_stream_on = 1; 908 } else 909 return -EINVAL; 910 911 fh->stream_on = 1; 912 913 return rc; 914 } 915 916 static int res_check(struct cx231xx_fh *fh) 917 { 918 return fh->stream_on; 919 } 920 921 static void res_free(struct cx231xx_fh *fh) 922 { 923 struct cx231xx *dev = fh->dev; 924 925 fh->stream_on = 0; 926 927 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 928 dev->stream_on = 0; 929 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 930 dev->vbi_stream_on = 0; 931 } 932 933 static int check_dev(struct cx231xx *dev) 934 { 935 if (dev->state & DEV_DISCONNECTED) { 936 dev_err(dev->dev, "v4l2 ioctl: device not present\n"); 937 return -ENODEV; 938 } 939 return 0; 940 } 941 942 /* ------------------------------------------------------------------ 943 IOCTL vidioc handling 944 ------------------------------------------------------------------*/ 945 946 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 947 struct v4l2_format *f) 948 { 949 struct cx231xx_fh *fh = priv; 950 struct cx231xx *dev = fh->dev; 951 952 f->fmt.pix.width = dev->width; 953 f->fmt.pix.height = dev->height; 954 f->fmt.pix.pixelformat = dev->format->fourcc; 955 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 956 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 957 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 958 959 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 960 961 return 0; 962 } 963 964 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc) 965 { 966 unsigned int i; 967 968 for (i = 0; i < ARRAY_SIZE(format); i++) 969 if (format[i].fourcc == fourcc) 970 return &format[i]; 971 972 return NULL; 973 } 974 975 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 976 struct v4l2_format *f) 977 { 978 struct cx231xx_fh *fh = priv; 979 struct cx231xx *dev = fh->dev; 980 unsigned int width = f->fmt.pix.width; 981 unsigned int height = f->fmt.pix.height; 982 unsigned int maxw = norm_maxw(dev); 983 unsigned int maxh = norm_maxh(dev); 984 struct cx231xx_fmt *fmt; 985 986 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 987 if (!fmt) { 988 cx231xx_videodbg("Fourcc format (%08x) invalid.\n", 989 f->fmt.pix.pixelformat); 990 return -EINVAL; 991 } 992 993 /* width must even because of the YUYV format 994 height must be even because of interlacing */ 995 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0); 996 997 f->fmt.pix.width = width; 998 f->fmt.pix.height = height; 999 f->fmt.pix.pixelformat = fmt->fourcc; 1000 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3; 1001 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 1002 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1003 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1004 1005 return 0; 1006 } 1007 1008 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1009 struct v4l2_format *f) 1010 { 1011 struct cx231xx_fh *fh = priv; 1012 struct cx231xx *dev = fh->dev; 1013 int rc; 1014 struct cx231xx_fmt *fmt; 1015 struct v4l2_subdev_format format = { 1016 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 1017 }; 1018 1019 rc = check_dev(dev); 1020 if (rc < 0) 1021 return rc; 1022 1023 vidioc_try_fmt_vid_cap(file, priv, f); 1024 1025 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1026 if (!fmt) 1027 return -EINVAL; 1028 1029 if (videobuf_queue_is_busy(&fh->vb_vidq)) { 1030 dev_err(dev->dev, "%s: queue busy\n", __func__); 1031 return -EBUSY; 1032 } 1033 1034 if (dev->stream_on && !fh->stream_on) { 1035 dev_err(dev->dev, 1036 "%s: device in use by another fh\n", __func__); 1037 return -EBUSY; 1038 } 1039 1040 /* set new image size */ 1041 dev->width = f->fmt.pix.width; 1042 dev->height = f->fmt.pix.height; 1043 dev->format = fmt; 1044 1045 v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED); 1046 call_all(dev, pad, set_fmt, NULL, &format); 1047 v4l2_fill_pix_format(&f->fmt.pix, &format.format); 1048 1049 return rc; 1050 } 1051 1052 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) 1053 { 1054 struct cx231xx_fh *fh = priv; 1055 struct cx231xx *dev = fh->dev; 1056 1057 *id = dev->norm; 1058 return 0; 1059 } 1060 1061 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1062 { 1063 struct cx231xx_fh *fh = priv; 1064 struct cx231xx *dev = fh->dev; 1065 struct v4l2_subdev_format format = { 1066 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 1067 }; 1068 int rc; 1069 1070 rc = check_dev(dev); 1071 if (rc < 0) 1072 return rc; 1073 1074 if (dev->norm == norm) 1075 return 0; 1076 1077 if (videobuf_queue_is_busy(&fh->vb_vidq)) 1078 return -EBUSY; 1079 1080 dev->norm = norm; 1081 1082 /* Adjusts width/height, if needed */ 1083 dev->width = 720; 1084 dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480; 1085 1086 call_all(dev, video, s_std, dev->norm); 1087 1088 /* We need to reset basic properties in the decoder related to 1089 resolution (since a standard change effects things like the number 1090 of lines in VACT, etc) */ 1091 format.format.code = MEDIA_BUS_FMT_FIXED; 1092 format.format.width = dev->width; 1093 format.format.height = dev->height; 1094 call_all(dev, pad, set_fmt, NULL, &format); 1095 1096 /* do mode control overrides */ 1097 cx231xx_do_mode_ctrl_overrides(dev); 1098 1099 return 0; 1100 } 1101 1102 static const char *iname[] = { 1103 [CX231XX_VMUX_COMPOSITE1] = "Composite1", 1104 [CX231XX_VMUX_SVIDEO] = "S-Video", 1105 [CX231XX_VMUX_TELEVISION] = "Television", 1106 [CX231XX_VMUX_CABLE] = "Cable TV", 1107 [CX231XX_VMUX_DVB] = "DVB", 1108 [CX231XX_VMUX_DEBUG] = "for debug only", 1109 }; 1110 1111 int cx231xx_enum_input(struct file *file, void *priv, 1112 struct v4l2_input *i) 1113 { 1114 struct cx231xx_fh *fh = priv; 1115 struct cx231xx *dev = fh->dev; 1116 u32 gen_stat; 1117 unsigned int ret, n; 1118 1119 n = i->index; 1120 if (n >= MAX_CX231XX_INPUT) 1121 return -EINVAL; 1122 if (0 == INPUT(n)->type) 1123 return -EINVAL; 1124 1125 i->index = n; 1126 i->type = V4L2_INPUT_TYPE_CAMERA; 1127 1128 strcpy(i->name, iname[INPUT(n)->type]); 1129 1130 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) || 1131 (CX231XX_VMUX_CABLE == INPUT(n)->type)) 1132 i->type = V4L2_INPUT_TYPE_TUNER; 1133 1134 i->std = dev->vdev.tvnorms; 1135 1136 /* If they are asking about the active input, read signal status */ 1137 if (n == dev->video_input) { 1138 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1139 GEN_STAT, 2, &gen_stat, 4); 1140 if (ret > 0) { 1141 if ((gen_stat & FLD_VPRES) == 0x00) 1142 i->status |= V4L2_IN_ST_NO_SIGNAL; 1143 if ((gen_stat & FLD_HLOCK) == 0x00) 1144 i->status |= V4L2_IN_ST_NO_H_LOCK; 1145 } 1146 } 1147 1148 return 0; 1149 } 1150 1151 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i) 1152 { 1153 struct cx231xx_fh *fh = priv; 1154 struct cx231xx *dev = fh->dev; 1155 1156 *i = dev->video_input; 1157 1158 return 0; 1159 } 1160 1161 int cx231xx_s_input(struct file *file, void *priv, unsigned int i) 1162 { 1163 struct cx231xx_fh *fh = priv; 1164 struct cx231xx *dev = fh->dev; 1165 int rc; 1166 1167 dev->mode_tv = 0; 1168 rc = check_dev(dev); 1169 if (rc < 0) 1170 return rc; 1171 1172 if (i >= MAX_CX231XX_INPUT) 1173 return -EINVAL; 1174 if (0 == INPUT(i)->type) 1175 return -EINVAL; 1176 1177 video_mux(dev, i); 1178 1179 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION || 1180 INPUT(i)->type == CX231XX_VMUX_CABLE) { 1181 /* There's a tuner, so reset the standard and put it on the 1182 last known frequency (since it was probably powered down 1183 until now */ 1184 call_all(dev, video, s_std, dev->norm); 1185 } 1186 1187 return 0; 1188 } 1189 1190 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1191 { 1192 struct cx231xx_fh *fh = priv; 1193 struct cx231xx *dev = fh->dev; 1194 int rc; 1195 1196 rc = check_dev(dev); 1197 if (rc < 0) 1198 return rc; 1199 1200 if (0 != t->index) 1201 return -EINVAL; 1202 1203 strcpy(t->name, "Tuner"); 1204 1205 t->type = V4L2_TUNER_ANALOG_TV; 1206 t->capability = V4L2_TUNER_CAP_NORM; 1207 t->rangehigh = 0xffffffffUL; 1208 t->signal = 0xffff; /* LOCKED */ 1209 call_all(dev, tuner, g_tuner, t); 1210 1211 return 0; 1212 } 1213 1214 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) 1215 { 1216 struct cx231xx_fh *fh = priv; 1217 struct cx231xx *dev = fh->dev; 1218 int rc; 1219 1220 rc = check_dev(dev); 1221 if (rc < 0) 1222 return rc; 1223 1224 if (0 != t->index) 1225 return -EINVAL; 1226 #if 0 1227 call_all(dev, tuner, s_tuner, t); 1228 #endif 1229 return 0; 1230 } 1231 1232 int cx231xx_g_frequency(struct file *file, void *priv, 1233 struct v4l2_frequency *f) 1234 { 1235 struct cx231xx_fh *fh = priv; 1236 struct cx231xx *dev = fh->dev; 1237 1238 if (f->tuner) 1239 return -EINVAL; 1240 1241 f->frequency = dev->ctl_freq; 1242 1243 return 0; 1244 } 1245 1246 int cx231xx_s_frequency(struct file *file, void *priv, 1247 const struct v4l2_frequency *f) 1248 { 1249 struct cx231xx_fh *fh = priv; 1250 struct cx231xx *dev = fh->dev; 1251 struct v4l2_frequency new_freq = *f; 1252 int rc; 1253 u32 if_frequency = 5400000; 1254 1255 dev_dbg(dev->dev, 1256 "Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n", 1257 f->frequency, f->type); 1258 1259 rc = check_dev(dev); 1260 if (rc < 0) 1261 return rc; 1262 1263 if (0 != f->tuner) 1264 return -EINVAL; 1265 1266 /* set pre channel change settings in DIF first */ 1267 rc = cx231xx_tuner_pre_channel_change(dev); 1268 1269 call_all(dev, tuner, s_frequency, f); 1270 call_all(dev, tuner, g_frequency, &new_freq); 1271 dev->ctl_freq = new_freq.frequency; 1272 1273 /* set post channel change settings in DIF first */ 1274 rc = cx231xx_tuner_post_channel_change(dev); 1275 1276 if (dev->tuner_type == TUNER_NXP_TDA18271) { 1277 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443)) 1278 if_frequency = 5400000; /*5.4MHz */ 1279 else if (dev->norm & V4L2_STD_B) 1280 if_frequency = 6000000; /*6.0MHz */ 1281 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK)) 1282 if_frequency = 6900000; /*6.9MHz */ 1283 else if (dev->norm & V4L2_STD_GH) 1284 if_frequency = 7100000; /*7.1MHz */ 1285 else if (dev->norm & V4L2_STD_PAL_I) 1286 if_frequency = 7250000; /*7.25MHz */ 1287 else if (dev->norm & V4L2_STD_SECAM_L) 1288 if_frequency = 6900000; /*6.9MHz */ 1289 else if (dev->norm & V4L2_STD_SECAM_LC) 1290 if_frequency = 1250000; /*1.25MHz */ 1291 1292 dev_dbg(dev->dev, 1293 "if_frequency is set to %d\n", if_frequency); 1294 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1); 1295 1296 update_HH_register_after_set_DIF(dev); 1297 } 1298 1299 dev_dbg(dev->dev, "Set New FREQUENCY to %d\n", f->frequency); 1300 1301 return rc; 1302 } 1303 1304 #ifdef CONFIG_VIDEO_ADV_DEBUG 1305 1306 int cx231xx_g_chip_info(struct file *file, void *fh, 1307 struct v4l2_dbg_chip_info *chip) 1308 { 1309 switch (chip->match.addr) { 1310 case 0: /* Cx231xx - internal registers */ 1311 return 0; 1312 case 1: /* AFE - read byte */ 1313 strlcpy(chip->name, "AFE (byte)", sizeof(chip->name)); 1314 return 0; 1315 case 2: /* Video Block - read byte */ 1316 strlcpy(chip->name, "Video (byte)", sizeof(chip->name)); 1317 return 0; 1318 case 3: /* I2S block - read byte */ 1319 strlcpy(chip->name, "I2S (byte)", sizeof(chip->name)); 1320 return 0; 1321 case 4: /* AFE - read dword */ 1322 strlcpy(chip->name, "AFE (dword)", sizeof(chip->name)); 1323 return 0; 1324 case 5: /* Video Block - read dword */ 1325 strlcpy(chip->name, "Video (dword)", sizeof(chip->name)); 1326 return 0; 1327 case 6: /* I2S Block - read dword */ 1328 strlcpy(chip->name, "I2S (dword)", sizeof(chip->name)); 1329 return 0; 1330 } 1331 return -EINVAL; 1332 } 1333 1334 int cx231xx_g_register(struct file *file, void *priv, 1335 struct v4l2_dbg_register *reg) 1336 { 1337 struct cx231xx_fh *fh = priv; 1338 struct cx231xx *dev = fh->dev; 1339 int ret; 1340 u8 value[4] = { 0, 0, 0, 0 }; 1341 u32 data = 0; 1342 1343 switch (reg->match.addr) { 1344 case 0: /* Cx231xx - internal registers */ 1345 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, 1346 (u16)reg->reg, value, 4); 1347 reg->val = value[0] | value[1] << 8 | 1348 value[2] << 16 | value[3] << 24; 1349 reg->size = 4; 1350 break; 1351 case 1: /* AFE - read byte */ 1352 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, 1353 (u16)reg->reg, 2, &data, 1); 1354 reg->val = data; 1355 reg->size = 1; 1356 break; 1357 case 2: /* Video Block - read byte */ 1358 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1359 (u16)reg->reg, 2, &data, 1); 1360 reg->val = data; 1361 reg->size = 1; 1362 break; 1363 case 3: /* I2S block - read byte */ 1364 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1365 (u16)reg->reg, 1, &data, 1); 1366 reg->val = data; 1367 reg->size = 1; 1368 break; 1369 case 4: /* AFE - read dword */ 1370 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, 1371 (u16)reg->reg, 2, &data, 4); 1372 reg->val = data; 1373 reg->size = 4; 1374 break; 1375 case 5: /* Video Block - read dword */ 1376 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1377 (u16)reg->reg, 2, &data, 4); 1378 reg->val = data; 1379 reg->size = 4; 1380 break; 1381 case 6: /* I2S Block - read dword */ 1382 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1383 (u16)reg->reg, 1, &data, 4); 1384 reg->val = data; 1385 reg->size = 4; 1386 break; 1387 default: 1388 return -EINVAL; 1389 } 1390 return ret < 0 ? ret : 0; 1391 } 1392 1393 int cx231xx_s_register(struct file *file, void *priv, 1394 const struct v4l2_dbg_register *reg) 1395 { 1396 struct cx231xx_fh *fh = priv; 1397 struct cx231xx *dev = fh->dev; 1398 int ret; 1399 u8 data[4] = { 0, 0, 0, 0 }; 1400 1401 switch (reg->match.addr) { 1402 case 0: /* cx231xx internal registers */ 1403 data[0] = (u8) reg->val; 1404 data[1] = (u8) (reg->val >> 8); 1405 data[2] = (u8) (reg->val >> 16); 1406 data[3] = (u8) (reg->val >> 24); 1407 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, 1408 (u16)reg->reg, data, 4); 1409 break; 1410 case 1: /* AFE - write byte */ 1411 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS, 1412 (u16)reg->reg, 2, reg->val, 1); 1413 break; 1414 case 2: /* Video Block - write byte */ 1415 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1416 (u16)reg->reg, 2, reg->val, 1); 1417 break; 1418 case 3: /* I2S block - write byte */ 1419 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1420 (u16)reg->reg, 1, reg->val, 1); 1421 break; 1422 case 4: /* AFE - write dword */ 1423 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS, 1424 (u16)reg->reg, 2, reg->val, 4); 1425 break; 1426 case 5: /* Video Block - write dword */ 1427 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1428 (u16)reg->reg, 2, reg->val, 4); 1429 break; 1430 case 6: /* I2S block - write dword */ 1431 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1432 (u16)reg->reg, 1, reg->val, 4); 1433 break; 1434 default: 1435 return -EINVAL; 1436 } 1437 return ret < 0 ? ret : 0; 1438 } 1439 #endif 1440 1441 static int vidioc_cropcap(struct file *file, void *priv, 1442 struct v4l2_cropcap *cc) 1443 { 1444 struct cx231xx_fh *fh = priv; 1445 struct cx231xx *dev = fh->dev; 1446 1447 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1448 return -EINVAL; 1449 1450 cc->bounds.left = 0; 1451 cc->bounds.top = 0; 1452 cc->bounds.width = dev->width; 1453 cc->bounds.height = dev->height; 1454 cc->defrect = cc->bounds; 1455 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ 1456 cc->pixelaspect.denominator = 59; 1457 1458 return 0; 1459 } 1460 1461 static int vidioc_streamon(struct file *file, void *priv, 1462 enum v4l2_buf_type type) 1463 { 1464 struct cx231xx_fh *fh = priv; 1465 struct cx231xx *dev = fh->dev; 1466 int rc; 1467 1468 rc = check_dev(dev); 1469 if (rc < 0) 1470 return rc; 1471 1472 rc = res_get(fh); 1473 1474 if (likely(rc >= 0)) 1475 rc = videobuf_streamon(&fh->vb_vidq); 1476 1477 call_all(dev, video, s_stream, 1); 1478 1479 return rc; 1480 } 1481 1482 static int vidioc_streamoff(struct file *file, void *priv, 1483 enum v4l2_buf_type type) 1484 { 1485 struct cx231xx_fh *fh = priv; 1486 struct cx231xx *dev = fh->dev; 1487 int rc; 1488 1489 rc = check_dev(dev); 1490 if (rc < 0) 1491 return rc; 1492 1493 if (type != fh->type) 1494 return -EINVAL; 1495 1496 cx25840_call(dev, video, s_stream, 0); 1497 1498 videobuf_streamoff(&fh->vb_vidq); 1499 res_free(fh); 1500 1501 return 0; 1502 } 1503 1504 int cx231xx_querycap(struct file *file, void *priv, 1505 struct v4l2_capability *cap) 1506 { 1507 struct video_device *vdev = video_devdata(file); 1508 struct cx231xx_fh *fh = priv; 1509 struct cx231xx *dev = fh->dev; 1510 1511 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver)); 1512 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card)); 1513 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 1514 1515 if (vdev->vfl_type == VFL_TYPE_RADIO) 1516 cap->device_caps = V4L2_CAP_RADIO; 1517 else { 1518 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; 1519 if (vdev->vfl_type == VFL_TYPE_VBI) 1520 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1521 else 1522 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1523 } 1524 if (dev->tuner_type != TUNER_ABSENT) 1525 cap->device_caps |= V4L2_CAP_TUNER; 1526 cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE | 1527 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | 1528 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; 1529 if (video_is_registered(&dev->radio_dev)) 1530 cap->capabilities |= V4L2_CAP_RADIO; 1531 1532 return 0; 1533 } 1534 1535 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1536 struct v4l2_fmtdesc *f) 1537 { 1538 if (unlikely(f->index >= ARRAY_SIZE(format))) 1539 return -EINVAL; 1540 1541 strlcpy(f->description, format[f->index].name, sizeof(f->description)); 1542 f->pixelformat = format[f->index].fourcc; 1543 1544 return 0; 1545 } 1546 1547 /* RAW VBI ioctls */ 1548 1549 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1550 struct v4l2_format *f) 1551 { 1552 struct cx231xx_fh *fh = priv; 1553 struct cx231xx *dev = fh->dev; 1554 1555 f->fmt.vbi.sampling_rate = 6750000 * 4; 1556 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; 1557 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1558 f->fmt.vbi.offset = 0; 1559 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? 1560 PAL_VBI_START_LINE : NTSC_VBI_START_LINE; 1561 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? 1562 PAL_VBI_LINES : NTSC_VBI_LINES; 1563 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? 1564 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; 1565 f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; 1566 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved)); 1567 1568 return 0; 1569 1570 } 1571 1572 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv, 1573 struct v4l2_format *f) 1574 { 1575 struct cx231xx_fh *fh = priv; 1576 struct cx231xx *dev = fh->dev; 1577 1578 f->fmt.vbi.sampling_rate = 6750000 * 4; 1579 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; 1580 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1581 f->fmt.vbi.offset = 0; 1582 f->fmt.vbi.flags = 0; 1583 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? 1584 PAL_VBI_START_LINE : NTSC_VBI_START_LINE; 1585 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? 1586 PAL_VBI_LINES : NTSC_VBI_LINES; 1587 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? 1588 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; 1589 f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; 1590 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved)); 1591 1592 return 0; 1593 1594 } 1595 1596 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, 1597 struct v4l2_format *f) 1598 { 1599 struct cx231xx_fh *fh = priv; 1600 struct cx231xx *dev = fh->dev; 1601 1602 if (dev->vbi_stream_on && !fh->stream_on) { 1603 dev_err(dev->dev, 1604 "%s device in use by another fh\n", __func__); 1605 return -EBUSY; 1606 } 1607 return vidioc_try_fmt_vbi_cap(file, priv, f); 1608 } 1609 1610 static int vidioc_reqbufs(struct file *file, void *priv, 1611 struct v4l2_requestbuffers *rb) 1612 { 1613 struct cx231xx_fh *fh = priv; 1614 struct cx231xx *dev = fh->dev; 1615 int rc; 1616 1617 rc = check_dev(dev); 1618 if (rc < 0) 1619 return rc; 1620 1621 return videobuf_reqbufs(&fh->vb_vidq, rb); 1622 } 1623 1624 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b) 1625 { 1626 struct cx231xx_fh *fh = priv; 1627 struct cx231xx *dev = fh->dev; 1628 int rc; 1629 1630 rc = check_dev(dev); 1631 if (rc < 0) 1632 return rc; 1633 1634 return videobuf_querybuf(&fh->vb_vidq, b); 1635 } 1636 1637 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 1638 { 1639 struct cx231xx_fh *fh = priv; 1640 struct cx231xx *dev = fh->dev; 1641 int rc; 1642 1643 rc = check_dev(dev); 1644 if (rc < 0) 1645 return rc; 1646 1647 return videobuf_qbuf(&fh->vb_vidq, b); 1648 } 1649 1650 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 1651 { 1652 struct cx231xx_fh *fh = priv; 1653 struct cx231xx *dev = fh->dev; 1654 int rc; 1655 1656 rc = check_dev(dev); 1657 if (rc < 0) 1658 return rc; 1659 1660 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK); 1661 } 1662 1663 /* ----------------------------------------------------------- */ 1664 /* RADIO ESPECIFIC IOCTLS */ 1665 /* ----------------------------------------------------------- */ 1666 1667 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1668 { 1669 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 1670 1671 if (t->index) 1672 return -EINVAL; 1673 1674 strcpy(t->name, "Radio"); 1675 1676 call_all(dev, tuner, g_tuner, t); 1677 1678 return 0; 1679 } 1680 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) 1681 { 1682 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 1683 1684 if (t->index) 1685 return -EINVAL; 1686 1687 call_all(dev, tuner, s_tuner, t); 1688 1689 return 0; 1690 } 1691 1692 /* 1693 * cx231xx_v4l2_open() 1694 * inits the device and starts isoc transfer 1695 */ 1696 static int cx231xx_v4l2_open(struct file *filp) 1697 { 1698 int radio = 0; 1699 struct video_device *vdev = video_devdata(filp); 1700 struct cx231xx *dev = video_drvdata(filp); 1701 struct cx231xx_fh *fh; 1702 enum v4l2_buf_type fh_type = 0; 1703 1704 switch (vdev->vfl_type) { 1705 case VFL_TYPE_GRABBER: 1706 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1707 break; 1708 case VFL_TYPE_VBI: 1709 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 1710 break; 1711 case VFL_TYPE_RADIO: 1712 radio = 1; 1713 break; 1714 } 1715 1716 cx231xx_videodbg("open dev=%s type=%s users=%d\n", 1717 video_device_node_name(vdev), v4l2_type_names[fh_type], 1718 dev->users); 1719 1720 #if 0 1721 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); 1722 if (errCode < 0) { 1723 dev_err(dev->dev, 1724 "Device locked on digital mode. Can't open analog\n"); 1725 return -EBUSY; 1726 } 1727 #endif 1728 1729 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL); 1730 if (!fh) 1731 return -ENOMEM; 1732 if (mutex_lock_interruptible(&dev->lock)) { 1733 kfree(fh); 1734 return -ERESTARTSYS; 1735 } 1736 fh->dev = dev; 1737 fh->type = fh_type; 1738 filp->private_data = fh; 1739 v4l2_fh_init(&fh->fh, vdev); 1740 1741 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 1742 /* Power up in Analog TV mode */ 1743 if (dev->board.external_av) 1744 cx231xx_set_power_mode(dev, 1745 POLARIS_AVMODE_ENXTERNAL_AV); 1746 else 1747 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV); 1748 1749 #if 0 1750 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); 1751 #endif 1752 1753 /* set video alternate setting */ 1754 cx231xx_set_video_alternate(dev); 1755 1756 /* Needed, since GPIO might have disabled power of 1757 some i2c device */ 1758 cx231xx_config_i2c(dev); 1759 1760 /* device needs to be initialized before isoc transfer */ 1761 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input; 1762 1763 } 1764 if (radio) { 1765 cx231xx_videodbg("video_open: setting radio device\n"); 1766 1767 /* cx231xx_start_radio(dev); */ 1768 1769 call_all(dev, tuner, s_radio); 1770 } 1771 1772 dev->users++; 1773 1774 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1775 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops, 1776 NULL, &dev->video_mode.slock, 1777 fh->type, V4L2_FIELD_INTERLACED, 1778 sizeof(struct cx231xx_buffer), 1779 fh, &dev->lock); 1780 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1781 /* Set the required alternate setting VBI interface works in 1782 Bulk mode only */ 1783 cx231xx_set_alt_setting(dev, INDEX_VANC, 0); 1784 1785 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops, 1786 NULL, &dev->vbi_mode.slock, 1787 fh->type, V4L2_FIELD_SEQ_TB, 1788 sizeof(struct cx231xx_buffer), 1789 fh, &dev->lock); 1790 } 1791 mutex_unlock(&dev->lock); 1792 v4l2_fh_add(&fh->fh); 1793 1794 return 0; 1795 } 1796 1797 /* 1798 * cx231xx_realease_resources() 1799 * unregisters the v4l2,i2c and usb devices 1800 * called when the device gets disconected or at module unload 1801 */ 1802 void cx231xx_release_analog_resources(struct cx231xx *dev) 1803 { 1804 1805 /*FIXME: I2C IR should be disconnected */ 1806 1807 if (video_is_registered(&dev->radio_dev)) 1808 video_unregister_device(&dev->radio_dev); 1809 if (video_is_registered(&dev->vbi_dev)) { 1810 dev_info(dev->dev, "V4L2 device %s deregistered\n", 1811 video_device_node_name(&dev->vbi_dev)); 1812 video_unregister_device(&dev->vbi_dev); 1813 } 1814 if (video_is_registered(&dev->vdev)) { 1815 dev_info(dev->dev, "V4L2 device %s deregistered\n", 1816 video_device_node_name(&dev->vdev)); 1817 1818 if (dev->board.has_417) 1819 cx231xx_417_unregister(dev); 1820 1821 video_unregister_device(&dev->vdev); 1822 } 1823 v4l2_ctrl_handler_free(&dev->ctrl_handler); 1824 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler); 1825 } 1826 1827 /* 1828 * cx231xx_close() 1829 * stops streaming and deallocates all resources allocated by the v4l2 1830 * calls and ioctls 1831 */ 1832 static int cx231xx_close(struct file *filp) 1833 { 1834 struct cx231xx_fh *fh = filp->private_data; 1835 struct cx231xx *dev = fh->dev; 1836 1837 cx231xx_videodbg("users=%d\n", dev->users); 1838 1839 cx231xx_videodbg("users=%d\n", dev->users); 1840 if (res_check(fh)) 1841 res_free(fh); 1842 1843 /* 1844 * To workaround error number=-71 on EP0 for VideoGrabber, 1845 * need exclude following. 1846 * FIXME: It is probably safe to remove most of these, as we're 1847 * now avoiding the alternate setting for INDEX_VANC 1848 */ 1849 if (!dev->board.no_alt_vanc) 1850 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1851 videobuf_stop(&fh->vb_vidq); 1852 videobuf_mmap_free(&fh->vb_vidq); 1853 1854 /* the device is already disconnect, 1855 free the remaining resources */ 1856 if (dev->state & DEV_DISCONNECTED) { 1857 if (atomic_read(&dev->devlist_count) > 0) { 1858 cx231xx_release_resources(dev); 1859 fh->dev = NULL; 1860 return 0; 1861 } 1862 return 0; 1863 } 1864 1865 /* do this before setting alternate! */ 1866 cx231xx_uninit_vbi_isoc(dev); 1867 1868 /* set alternate 0 */ 1869 if (!dev->vbi_or_sliced_cc_mode) 1870 cx231xx_set_alt_setting(dev, INDEX_VANC, 0); 1871 else 1872 cx231xx_set_alt_setting(dev, INDEX_HANC, 0); 1873 1874 v4l2_fh_del(&fh->fh); 1875 v4l2_fh_exit(&fh->fh); 1876 kfree(fh); 1877 dev->users--; 1878 wake_up_interruptible(&dev->open); 1879 return 0; 1880 } 1881 1882 v4l2_fh_del(&fh->fh); 1883 dev->users--; 1884 if (!dev->users) { 1885 videobuf_stop(&fh->vb_vidq); 1886 videobuf_mmap_free(&fh->vb_vidq); 1887 1888 /* the device is already disconnect, 1889 free the remaining resources */ 1890 if (dev->state & DEV_DISCONNECTED) { 1891 cx231xx_release_resources(dev); 1892 fh->dev = NULL; 1893 return 0; 1894 } 1895 1896 /* Save some power by putting tuner to sleep */ 1897 call_all(dev, core, s_power, 0); 1898 1899 /* do this before setting alternate! */ 1900 if (dev->USE_ISO) 1901 cx231xx_uninit_isoc(dev); 1902 else 1903 cx231xx_uninit_bulk(dev); 1904 cx231xx_set_mode(dev, CX231XX_SUSPEND); 1905 1906 /* set alternate 0 */ 1907 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0); 1908 } 1909 v4l2_fh_exit(&fh->fh); 1910 kfree(fh); 1911 wake_up_interruptible(&dev->open); 1912 return 0; 1913 } 1914 1915 static int cx231xx_v4l2_close(struct file *filp) 1916 { 1917 struct cx231xx_fh *fh = filp->private_data; 1918 struct cx231xx *dev = fh->dev; 1919 int rc; 1920 1921 mutex_lock(&dev->lock); 1922 rc = cx231xx_close(filp); 1923 mutex_unlock(&dev->lock); 1924 return rc; 1925 } 1926 1927 /* 1928 * cx231xx_v4l2_read() 1929 * will allocate buffers when called for the first time 1930 */ 1931 static ssize_t 1932 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count, 1933 loff_t *pos) 1934 { 1935 struct cx231xx_fh *fh = filp->private_data; 1936 struct cx231xx *dev = fh->dev; 1937 int rc; 1938 1939 rc = check_dev(dev); 1940 if (rc < 0) 1941 return rc; 1942 1943 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) || 1944 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) { 1945 rc = res_get(fh); 1946 1947 if (unlikely(rc < 0)) 1948 return rc; 1949 1950 if (mutex_lock_interruptible(&dev->lock)) 1951 return -ERESTARTSYS; 1952 rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, 1953 filp->f_flags & O_NONBLOCK); 1954 mutex_unlock(&dev->lock); 1955 return rc; 1956 } 1957 return 0; 1958 } 1959 1960 /* 1961 * cx231xx_v4l2_poll() 1962 * will allocate buffers when called for the first time 1963 */ 1964 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait) 1965 { 1966 unsigned long req_events = poll_requested_events(wait); 1967 struct cx231xx_fh *fh = filp->private_data; 1968 struct cx231xx *dev = fh->dev; 1969 unsigned res = 0; 1970 int rc; 1971 1972 rc = check_dev(dev); 1973 if (rc < 0) 1974 return POLLERR; 1975 1976 rc = res_get(fh); 1977 1978 if (unlikely(rc < 0)) 1979 return POLLERR; 1980 1981 if (v4l2_event_pending(&fh->fh)) 1982 res |= POLLPRI; 1983 else 1984 poll_wait(filp, &fh->fh.wait, wait); 1985 1986 if (!(req_events & (POLLIN | POLLRDNORM))) 1987 return res; 1988 1989 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) || 1990 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) { 1991 mutex_lock(&dev->lock); 1992 res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait); 1993 mutex_unlock(&dev->lock); 1994 return res; 1995 } 1996 return res | POLLERR; 1997 } 1998 1999 /* 2000 * cx231xx_v4l2_mmap() 2001 */ 2002 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 2003 { 2004 struct cx231xx_fh *fh = filp->private_data; 2005 struct cx231xx *dev = fh->dev; 2006 int rc; 2007 2008 rc = check_dev(dev); 2009 if (rc < 0) 2010 return rc; 2011 2012 rc = res_get(fh); 2013 2014 if (unlikely(rc < 0)) 2015 return rc; 2016 2017 if (mutex_lock_interruptible(&dev->lock)) 2018 return -ERESTARTSYS; 2019 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); 2020 mutex_unlock(&dev->lock); 2021 2022 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", 2023 (unsigned long)vma->vm_start, 2024 (unsigned long)vma->vm_end - 2025 (unsigned long)vma->vm_start, rc); 2026 2027 return rc; 2028 } 2029 2030 static const struct v4l2_file_operations cx231xx_v4l_fops = { 2031 .owner = THIS_MODULE, 2032 .open = cx231xx_v4l2_open, 2033 .release = cx231xx_v4l2_close, 2034 .read = cx231xx_v4l2_read, 2035 .poll = cx231xx_v4l2_poll, 2036 .mmap = cx231xx_v4l2_mmap, 2037 .unlocked_ioctl = video_ioctl2, 2038 }; 2039 2040 static const struct v4l2_ioctl_ops video_ioctl_ops = { 2041 .vidioc_querycap = cx231xx_querycap, 2042 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 2043 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 2044 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 2045 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 2046 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 2047 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap, 2048 .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, 2049 .vidioc_cropcap = vidioc_cropcap, 2050 .vidioc_reqbufs = vidioc_reqbufs, 2051 .vidioc_querybuf = vidioc_querybuf, 2052 .vidioc_qbuf = vidioc_qbuf, 2053 .vidioc_dqbuf = vidioc_dqbuf, 2054 .vidioc_s_std = vidioc_s_std, 2055 .vidioc_g_std = vidioc_g_std, 2056 .vidioc_enum_input = cx231xx_enum_input, 2057 .vidioc_g_input = cx231xx_g_input, 2058 .vidioc_s_input = cx231xx_s_input, 2059 .vidioc_streamon = vidioc_streamon, 2060 .vidioc_streamoff = vidioc_streamoff, 2061 .vidioc_g_tuner = cx231xx_g_tuner, 2062 .vidioc_s_tuner = cx231xx_s_tuner, 2063 .vidioc_g_frequency = cx231xx_g_frequency, 2064 .vidioc_s_frequency = cx231xx_s_frequency, 2065 #ifdef CONFIG_VIDEO_ADV_DEBUG 2066 .vidioc_g_chip_info = cx231xx_g_chip_info, 2067 .vidioc_g_register = cx231xx_g_register, 2068 .vidioc_s_register = cx231xx_s_register, 2069 #endif 2070 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 2071 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 2072 }; 2073 2074 static struct video_device cx231xx_vbi_template; 2075 2076 static const struct video_device cx231xx_video_template = { 2077 .fops = &cx231xx_v4l_fops, 2078 .release = video_device_release_empty, 2079 .ioctl_ops = &video_ioctl_ops, 2080 .tvnorms = V4L2_STD_ALL, 2081 }; 2082 2083 static const struct v4l2_file_operations radio_fops = { 2084 .owner = THIS_MODULE, 2085 .open = cx231xx_v4l2_open, 2086 .release = cx231xx_v4l2_close, 2087 .poll = v4l2_ctrl_poll, 2088 .unlocked_ioctl = video_ioctl2, 2089 }; 2090 2091 static const struct v4l2_ioctl_ops radio_ioctl_ops = { 2092 .vidioc_querycap = cx231xx_querycap, 2093 .vidioc_g_tuner = radio_g_tuner, 2094 .vidioc_s_tuner = radio_s_tuner, 2095 .vidioc_g_frequency = cx231xx_g_frequency, 2096 .vidioc_s_frequency = cx231xx_s_frequency, 2097 #ifdef CONFIG_VIDEO_ADV_DEBUG 2098 .vidioc_g_chip_info = cx231xx_g_chip_info, 2099 .vidioc_g_register = cx231xx_g_register, 2100 .vidioc_s_register = cx231xx_s_register, 2101 #endif 2102 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 2103 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 2104 }; 2105 2106 static struct video_device cx231xx_radio_template = { 2107 .name = "cx231xx-radio", 2108 .fops = &radio_fops, 2109 .ioctl_ops = &radio_ioctl_ops, 2110 }; 2111 2112 /******************************** usb interface ******************************/ 2113 2114 static void cx231xx_vdev_init(struct cx231xx *dev, 2115 struct video_device *vfd, 2116 const struct video_device *template, 2117 const char *type_name) 2118 { 2119 *vfd = *template; 2120 vfd->v4l2_dev = &dev->v4l2_dev; 2121 vfd->release = video_device_release_empty; 2122 vfd->lock = &dev->lock; 2123 2124 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name); 2125 2126 video_set_drvdata(vfd, dev); 2127 if (dev->tuner_type == TUNER_ABSENT) { 2128 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY); 2129 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY); 2130 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER); 2131 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER); 2132 } 2133 } 2134 2135 int cx231xx_register_analog_devices(struct cx231xx *dev) 2136 { 2137 int ret; 2138 2139 dev_info(dev->dev, "v4l2 driver version %s\n", CX231XX_VERSION); 2140 2141 /* set default norm */ 2142 dev->norm = V4L2_STD_PAL; 2143 dev->width = norm_maxw(dev); 2144 dev->height = norm_maxh(dev); 2145 dev->interlaced = 0; 2146 2147 /* Analog specific initialization */ 2148 dev->format = &format[0]; 2149 2150 /* Set the initial input */ 2151 video_mux(dev, dev->video_input); 2152 2153 call_all(dev, video, s_std, dev->norm); 2154 2155 v4l2_ctrl_handler_init(&dev->ctrl_handler, 10); 2156 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5); 2157 2158 if (dev->sd_cx25840) { 2159 v4l2_ctrl_add_handler(&dev->ctrl_handler, 2160 dev->sd_cx25840->ctrl_handler, NULL); 2161 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler, 2162 dev->sd_cx25840->ctrl_handler, 2163 v4l2_ctrl_radio_filter); 2164 } 2165 2166 if (dev->ctrl_handler.error) 2167 return dev->ctrl_handler.error; 2168 if (dev->radio_ctrl_handler.error) 2169 return dev->radio_ctrl_handler.error; 2170 2171 /* enable vbi capturing */ 2172 /* write code here... */ 2173 2174 /* allocate and fill video video_device struct */ 2175 cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video"); 2176 #if defined(CONFIG_MEDIA_CONTROLLER) 2177 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 2178 ret = media_entity_init(&dev->vdev.entity, 1, &dev->video_pad, 0); 2179 if (ret < 0) 2180 dev_err(dev->dev, "failed to initialize video media entity!\n"); 2181 #endif 2182 dev->vdev.ctrl_handler = &dev->ctrl_handler; 2183 /* register v4l2 video video_device */ 2184 ret = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, 2185 video_nr[dev->devno]); 2186 if (ret) { 2187 dev_err(dev->dev, 2188 "unable to register video device (error=%i).\n", 2189 ret); 2190 return ret; 2191 } 2192 2193 dev_info(dev->dev, "Registered video device %s [v4l2]\n", 2194 video_device_node_name(&dev->vdev)); 2195 2196 /* Initialize VBI template */ 2197 cx231xx_vbi_template = cx231xx_video_template; 2198 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi"); 2199 2200 /* Allocate and fill vbi video_device struct */ 2201 cx231xx_vdev_init(dev, &dev->vbi_dev, &cx231xx_vbi_template, "vbi"); 2202 2203 #if defined(CONFIG_MEDIA_CONTROLLER) 2204 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 2205 ret = media_entity_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad, 0); 2206 if (ret < 0) 2207 dev_err(dev->dev, "failed to initialize vbi media entity!\n"); 2208 #endif 2209 dev->vbi_dev.ctrl_handler = &dev->ctrl_handler; 2210 /* register v4l2 vbi video_device */ 2211 ret = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, 2212 vbi_nr[dev->devno]); 2213 if (ret < 0) { 2214 dev_err(dev->dev, "unable to register vbi device\n"); 2215 return ret; 2216 } 2217 2218 dev_info(dev->dev, "Registered VBI device %s\n", 2219 video_device_node_name(&dev->vbi_dev)); 2220 2221 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) { 2222 cx231xx_vdev_init(dev, &dev->radio_dev, 2223 &cx231xx_radio_template, "radio"); 2224 dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler; 2225 ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO, 2226 radio_nr[dev->devno]); 2227 if (ret < 0) { 2228 dev_err(dev->dev, 2229 "can't register radio device\n"); 2230 return ret; 2231 } 2232 dev_info(dev->dev, "Registered radio device as %s\n", 2233 video_device_node_name(&dev->radio_dev)); 2234 } 2235 2236 return 0; 2237 } 2238