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 <linux/init.h> 26 #include <linux/list.h> 27 #include <linux/module.h> 28 #include <linux/kernel.h> 29 #include <linux/bitmap.h> 30 #include <linux/usb.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.h" 45 #include "cx231xx-vbi.h" 46 47 #define CX231XX_VERSION "0.0.2" 48 49 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>" 50 #define DRIVER_DESC "Conexant cx231xx based USB video device driver" 51 52 #define cx231xx_videodbg(fmt, arg...) do {\ 53 if (video_debug) \ 54 printk(KERN_INFO "%s %s :"fmt, \ 55 dev->name, __func__ , ##arg); } while (0) 56 57 static unsigned int isoc_debug; 58 module_param(isoc_debug, int, 0644); 59 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 60 61 #define cx231xx_isocdbg(fmt, arg...) \ 62 do {\ 63 if (isoc_debug) { \ 64 printk(KERN_INFO "%s %s :"fmt, \ 65 dev->name, __func__ , ##arg); \ 66 } \ 67 } while (0) 68 69 MODULE_AUTHOR(DRIVER_AUTHOR); 70 MODULE_DESCRIPTION(DRIVER_DESC); 71 MODULE_LICENSE("GPL"); 72 MODULE_VERSION(CX231XX_VERSION); 73 74 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 75 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 76 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 77 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 78 79 module_param_array(card, int, NULL, 0444); 80 module_param_array(video_nr, int, NULL, 0444); 81 module_param_array(vbi_nr, int, NULL, 0444); 82 module_param_array(radio_nr, int, NULL, 0444); 83 84 MODULE_PARM_DESC(card, "card type"); 85 MODULE_PARM_DESC(video_nr, "video device numbers"); 86 MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 87 MODULE_PARM_DESC(radio_nr, "radio device numbers"); 88 89 static unsigned int video_debug; 90 module_param(video_debug, int, 0644); 91 MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 92 93 /* supported video standards */ 94 static struct cx231xx_fmt format[] = { 95 { 96 .name = "16bpp YUY2, 4:2:2, packed", 97 .fourcc = V4L2_PIX_FMT_YUYV, 98 .depth = 16, 99 .reg = 0, 100 }, 101 }; 102 103 104 /* ------------------------------------------------------------------ 105 Video buffer and parser functions 106 ------------------------------------------------------------------*/ 107 108 /* 109 * Announces that a buffer were filled and request the next 110 */ 111 static inline void buffer_filled(struct cx231xx *dev, 112 struct cx231xx_dmaqueue *dma_q, 113 struct cx231xx_buffer *buf) 114 { 115 /* Advice that buffer was filled */ 116 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 117 buf->vb.state = VIDEOBUF_DONE; 118 buf->vb.field_count++; 119 v4l2_get_timestamp(&buf->vb.ts); 120 121 if (dev->USE_ISO) 122 dev->video_mode.isoc_ctl.buf = NULL; 123 else 124 dev->video_mode.bulk_ctl.buf = NULL; 125 126 list_del(&buf->vb.queue); 127 wake_up(&buf->vb.done); 128 } 129 130 static inline void print_err_status(struct cx231xx *dev, int packet, int status) 131 { 132 char *errmsg = "Unknown"; 133 134 switch (status) { 135 case -ENOENT: 136 errmsg = "unlinked synchronuously"; 137 break; 138 case -ECONNRESET: 139 errmsg = "unlinked asynchronuously"; 140 break; 141 case -ENOSR: 142 errmsg = "Buffer error (overrun)"; 143 break; 144 case -EPIPE: 145 errmsg = "Stalled (device not responding)"; 146 break; 147 case -EOVERFLOW: 148 errmsg = "Babble (bad cable?)"; 149 break; 150 case -EPROTO: 151 errmsg = "Bit-stuff error (bad cable?)"; 152 break; 153 case -EILSEQ: 154 errmsg = "CRC/Timeout (could be anything)"; 155 break; 156 case -ETIME: 157 errmsg = "Device does not respond"; 158 break; 159 } 160 if (packet < 0) { 161 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg); 162 } else { 163 cx231xx_isocdbg("URB packet %d, status %d [%s].\n", 164 packet, status, errmsg); 165 } 166 } 167 168 /* 169 * video-buf generic routine to get the next available buffer 170 */ 171 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q, 172 struct cx231xx_buffer **buf) 173 { 174 struct cx231xx_video_mode *vmode = 175 container_of(dma_q, struct cx231xx_video_mode, vidq); 176 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode); 177 178 char *outp; 179 180 if (list_empty(&dma_q->active)) { 181 cx231xx_isocdbg("No active queue to serve\n"); 182 if (dev->USE_ISO) 183 dev->video_mode.isoc_ctl.buf = NULL; 184 else 185 dev->video_mode.bulk_ctl.buf = NULL; 186 *buf = NULL; 187 return; 188 } 189 190 /* Get the next buffer */ 191 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue); 192 193 /* Cleans up buffer - Useful for testing for frame/URB loss */ 194 outp = videobuf_to_vmalloc(&(*buf)->vb); 195 memset(outp, 0, (*buf)->vb.size); 196 197 if (dev->USE_ISO) 198 dev->video_mode.isoc_ctl.buf = *buf; 199 else 200 dev->video_mode.bulk_ctl.buf = *buf; 201 202 return; 203 } 204 205 /* 206 * Controls the isoc copy of each urb packet 207 */ 208 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb) 209 { 210 struct cx231xx_dmaqueue *dma_q = urb->context; 211 int i, rc = 1; 212 unsigned char *p_buffer; 213 u32 bytes_parsed = 0, buffer_size = 0; 214 u8 sav_eav = 0; 215 216 if (!dev) 217 return 0; 218 219 if (dev->state & DEV_DISCONNECTED) 220 return 0; 221 222 if (urb->status < 0) { 223 print_err_status(dev, -1, urb->status); 224 if (urb->status == -ENOENT) 225 return 0; 226 } 227 228 for (i = 0; i < urb->number_of_packets; i++) { 229 int status = urb->iso_frame_desc[i].status; 230 231 if (status < 0) { 232 print_err_status(dev, i, status); 233 if (urb->iso_frame_desc[i].status != -EPROTO) 234 continue; 235 } 236 237 if (urb->iso_frame_desc[i].actual_length <= 0) { 238 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */ 239 continue; 240 } 241 if (urb->iso_frame_desc[i].actual_length > 242 dev->video_mode.max_pkt_size) { 243 cx231xx_isocdbg("packet bigger than packet size"); 244 continue; 245 } 246 247 /* get buffer pointer and length */ 248 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 249 buffer_size = urb->iso_frame_desc[i].actual_length; 250 bytes_parsed = 0; 251 252 if (dma_q->is_partial_line) { 253 /* Handle the case of a partial line */ 254 sav_eav = dma_q->last_sav; 255 } else { 256 /* Check for a SAV/EAV overlapping 257 the buffer boundary */ 258 sav_eav = 259 cx231xx_find_boundary_SAV_EAV(p_buffer, 260 dma_q->partial_buf, 261 &bytes_parsed); 262 } 263 264 sav_eav &= 0xF0; 265 /* Get the first line if we have some portion of an SAV/EAV from 266 the last buffer or a partial line */ 267 if (sav_eav) { 268 bytes_parsed += cx231xx_get_video_line(dev, dma_q, 269 sav_eav, /* SAV/EAV */ 270 p_buffer + bytes_parsed, /* p_buffer */ 271 buffer_size - bytes_parsed);/* buf size */ 272 } 273 274 /* Now parse data that is completely in this buffer */ 275 /* dma_q->is_partial_line = 0; */ 276 277 while (bytes_parsed < buffer_size) { 278 u32 bytes_used = 0; 279 280 sav_eav = cx231xx_find_next_SAV_EAV( 281 p_buffer + bytes_parsed, /* p_buffer */ 282 buffer_size - bytes_parsed, /* buf size */ 283 &bytes_used);/* bytes used to get SAV/EAV */ 284 285 bytes_parsed += bytes_used; 286 287 sav_eav &= 0xF0; 288 if (sav_eav && (bytes_parsed < buffer_size)) { 289 bytes_parsed += cx231xx_get_video_line(dev, 290 dma_q, sav_eav, /* SAV/EAV */ 291 p_buffer + bytes_parsed,/* p_buffer */ 292 buffer_size - bytes_parsed);/*buf size*/ 293 } 294 } 295 296 /* Save the last four bytes of the buffer so we can check the 297 buffer boundary condition next time */ 298 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); 299 bytes_parsed = 0; 300 301 } 302 return rc; 303 } 304 305 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb) 306 { 307 struct cx231xx_dmaqueue *dma_q = urb->context; 308 int rc = 1; 309 unsigned char *p_buffer; 310 u32 bytes_parsed = 0, buffer_size = 0; 311 u8 sav_eav = 0; 312 313 if (!dev) 314 return 0; 315 316 if (dev->state & DEV_DISCONNECTED) 317 return 0; 318 319 if (urb->status < 0) { 320 print_err_status(dev, -1, urb->status); 321 if (urb->status == -ENOENT) 322 return 0; 323 } 324 325 if (1) { 326 327 /* get buffer pointer and length */ 328 p_buffer = urb->transfer_buffer; 329 buffer_size = urb->actual_length; 330 bytes_parsed = 0; 331 332 if (dma_q->is_partial_line) { 333 /* Handle the case of a partial line */ 334 sav_eav = dma_q->last_sav; 335 } else { 336 /* Check for a SAV/EAV overlapping 337 the buffer boundary */ 338 sav_eav = 339 cx231xx_find_boundary_SAV_EAV(p_buffer, 340 dma_q->partial_buf, 341 &bytes_parsed); 342 } 343 344 sav_eav &= 0xF0; 345 /* Get the first line if we have some portion of an SAV/EAV from 346 the last buffer or a partial line */ 347 if (sav_eav) { 348 bytes_parsed += cx231xx_get_video_line(dev, dma_q, 349 sav_eav, /* SAV/EAV */ 350 p_buffer + bytes_parsed, /* p_buffer */ 351 buffer_size - bytes_parsed);/* buf size */ 352 } 353 354 /* Now parse data that is completely in this buffer */ 355 /* dma_q->is_partial_line = 0; */ 356 357 while (bytes_parsed < buffer_size) { 358 u32 bytes_used = 0; 359 360 sav_eav = cx231xx_find_next_SAV_EAV( 361 p_buffer + bytes_parsed, /* p_buffer */ 362 buffer_size - bytes_parsed, /* buf size */ 363 &bytes_used);/* bytes used to get SAV/EAV */ 364 365 bytes_parsed += bytes_used; 366 367 sav_eav &= 0xF0; 368 if (sav_eav && (bytes_parsed < buffer_size)) { 369 bytes_parsed += cx231xx_get_video_line(dev, 370 dma_q, sav_eav, /* SAV/EAV */ 371 p_buffer + bytes_parsed,/* p_buffer */ 372 buffer_size - bytes_parsed);/*buf size*/ 373 } 374 } 375 376 /* Save the last four bytes of the buffer so we can check the 377 buffer boundary condition next time */ 378 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); 379 bytes_parsed = 0; 380 381 } 382 return rc; 383 } 384 385 386 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf, 387 u32 *p_bytes_used) 388 { 389 u32 bytes_used; 390 u8 boundary_bytes[8]; 391 u8 sav_eav = 0; 392 393 *p_bytes_used = 0; 394 395 /* Create an array of the last 4 bytes of the last buffer and the first 396 4 bytes of the current buffer. */ 397 398 memcpy(boundary_bytes, partial_buf, 4); 399 memcpy(boundary_bytes + 4, p_buffer, 4); 400 401 /* Check for the SAV/EAV in the boundary buffer */ 402 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8, 403 &bytes_used); 404 405 if (sav_eav) { 406 /* found a boundary SAV/EAV. Updates the bytes used to reflect 407 only those used in the new buffer */ 408 *p_bytes_used = bytes_used - 4; 409 } 410 411 return sav_eav; 412 } 413 414 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used) 415 { 416 u32 i; 417 u8 sav_eav = 0; 418 419 /* 420 * Don't search if the buffer size is less than 4. It causes a page 421 * fault since buffer_size - 4 evaluates to a large number in that 422 * case. 423 */ 424 if (buffer_size < 4) { 425 *p_bytes_used = buffer_size; 426 return 0; 427 } 428 429 for (i = 0; i < (buffer_size - 3); i++) { 430 431 if ((p_buffer[i] == 0xFF) && 432 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) { 433 434 *p_bytes_used = i + 4; 435 sav_eav = p_buffer[i + 3]; 436 return sav_eav; 437 } 438 } 439 440 *p_bytes_used = buffer_size; 441 return 0; 442 } 443 444 u32 cx231xx_get_video_line(struct cx231xx *dev, 445 struct cx231xx_dmaqueue *dma_q, u8 sav_eav, 446 u8 *p_buffer, u32 buffer_size) 447 { 448 u32 bytes_copied = 0; 449 int current_field = -1; 450 451 switch (sav_eav) { 452 case SAV_ACTIVE_VIDEO_FIELD1: 453 /* looking for skipped line which occurred in PAL 720x480 mode. 454 In this case, there will be no active data contained 455 between the SAV and EAV */ 456 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && 457 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && 458 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || 459 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || 460 (p_buffer[3] == EAV_VBLANK_FIELD1) || 461 (p_buffer[3] == EAV_VBLANK_FIELD2))) 462 return bytes_copied; 463 current_field = 1; 464 break; 465 466 case SAV_ACTIVE_VIDEO_FIELD2: 467 /* looking for skipped line which occurred in PAL 720x480 mode. 468 In this case, there will be no active data contained between 469 the SAV and EAV */ 470 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && 471 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && 472 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || 473 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || 474 (p_buffer[3] == EAV_VBLANK_FIELD1) || 475 (p_buffer[3] == EAV_VBLANK_FIELD2))) 476 return bytes_copied; 477 current_field = 2; 478 break; 479 } 480 481 dma_q->last_sav = sav_eav; 482 483 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer, 484 buffer_size, current_field); 485 486 return bytes_copied; 487 } 488 489 u32 cx231xx_copy_video_line(struct cx231xx *dev, 490 struct cx231xx_dmaqueue *dma_q, u8 *p_line, 491 u32 length, int field_number) 492 { 493 u32 bytes_to_copy; 494 struct cx231xx_buffer *buf; 495 u32 _line_size = dev->width * 2; 496 497 if (dma_q->current_field != field_number) 498 cx231xx_reset_video_buffer(dev, dma_q); 499 500 /* get the buffer pointer */ 501 if (dev->USE_ISO) 502 buf = dev->video_mode.isoc_ctl.buf; 503 else 504 buf = dev->video_mode.bulk_ctl.buf; 505 506 /* Remember the field number for next time */ 507 dma_q->current_field = field_number; 508 509 bytes_to_copy = dma_q->bytes_left_in_line; 510 if (bytes_to_copy > length) 511 bytes_to_copy = length; 512 513 if (dma_q->lines_completed >= dma_q->lines_per_field) { 514 dma_q->bytes_left_in_line -= bytes_to_copy; 515 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 516 0 : 1; 517 return 0; 518 } 519 520 dma_q->is_partial_line = 1; 521 522 /* If we don't have a buffer, just return the number of bytes we would 523 have copied if we had a buffer. */ 524 if (!buf) { 525 dma_q->bytes_left_in_line -= bytes_to_copy; 526 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) 527 ? 0 : 1; 528 return bytes_to_copy; 529 } 530 531 /* copy the data to video buffer */ 532 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy); 533 534 dma_q->pos += bytes_to_copy; 535 dma_q->bytes_left_in_line -= bytes_to_copy; 536 537 if (dma_q->bytes_left_in_line == 0) { 538 dma_q->bytes_left_in_line = _line_size; 539 dma_q->lines_completed++; 540 dma_q->is_partial_line = 0; 541 542 if (cx231xx_is_buffer_done(dev, dma_q) && buf) { 543 buffer_filled(dev, dma_q, buf); 544 545 dma_q->pos = 0; 546 buf = NULL; 547 dma_q->lines_completed = 0; 548 } 549 } 550 551 return bytes_to_copy; 552 } 553 554 void cx231xx_reset_video_buffer(struct cx231xx *dev, 555 struct cx231xx_dmaqueue *dma_q) 556 { 557 struct cx231xx_buffer *buf; 558 559 /* handle the switch from field 1 to field 2 */ 560 if (dma_q->current_field == 1) { 561 if (dma_q->lines_completed >= dma_q->lines_per_field) 562 dma_q->field1_done = 1; 563 else 564 dma_q->field1_done = 0; 565 } 566 567 if (dev->USE_ISO) 568 buf = dev->video_mode.isoc_ctl.buf; 569 else 570 buf = dev->video_mode.bulk_ctl.buf; 571 572 if (buf == NULL) { 573 /* first try to get the buffer */ 574 get_next_buf(dma_q, &buf); 575 576 dma_q->pos = 0; 577 dma_q->field1_done = 0; 578 dma_q->current_field = -1; 579 } 580 581 /* reset the counters */ 582 dma_q->bytes_left_in_line = dev->width << 1; 583 dma_q->lines_completed = 0; 584 } 585 586 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, 587 u8 *p_buffer, u32 bytes_to_copy) 588 { 589 u8 *p_out_buffer = NULL; 590 u32 current_line_bytes_copied = 0; 591 struct cx231xx_buffer *buf; 592 u32 _line_size = dev->width << 1; 593 void *startwrite; 594 int offset, lencopy; 595 596 if (dev->USE_ISO) 597 buf = dev->video_mode.isoc_ctl.buf; 598 else 599 buf = dev->video_mode.bulk_ctl.buf; 600 601 if (buf == NULL) 602 return -1; 603 604 p_out_buffer = videobuf_to_vmalloc(&buf->vb); 605 606 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line; 607 608 /* Offset field 2 one line from the top of the buffer */ 609 offset = (dma_q->current_field == 1) ? 0 : _line_size; 610 611 /* Offset for field 2 */ 612 startwrite = p_out_buffer + offset; 613 614 /* lines already completed in the current field */ 615 startwrite += (dma_q->lines_completed * _line_size * 2); 616 617 /* bytes already completed in the current line */ 618 startwrite += current_line_bytes_copied; 619 620 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ? 621 bytes_to_copy : dma_q->bytes_left_in_line; 622 623 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size)) 624 return 0; 625 626 /* The below copies the UYVY data straight into video buffer */ 627 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy); 628 629 return 0; 630 } 631 632 void cx231xx_swab(u16 *from, u16 *to, u16 len) 633 { 634 u16 i; 635 636 if (len <= 0) 637 return; 638 639 for (i = 0; i < len / 2; i++) 640 to[i] = (from[i] << 8) | (from[i] >> 8); 641 } 642 643 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q) 644 { 645 u8 buffer_complete = 0; 646 647 /* Dual field stream */ 648 buffer_complete = ((dma_q->current_field == 2) && 649 (dma_q->lines_completed >= dma_q->lines_per_field) && 650 dma_q->field1_done); 651 652 return buffer_complete; 653 } 654 655 /* ------------------------------------------------------------------ 656 Videobuf operations 657 ------------------------------------------------------------------*/ 658 659 static int 660 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) 661 { 662 struct cx231xx_fh *fh = vq->priv_data; 663 struct cx231xx *dev = fh->dev; 664 665 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3; 666 if (0 == *count) 667 *count = CX231XX_DEF_BUF; 668 669 if (*count < CX231XX_MIN_BUF) 670 *count = CX231XX_MIN_BUF; 671 672 return 0; 673 } 674 675 /* This is called *without* dev->slock held; please keep it that way */ 676 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf) 677 { 678 struct cx231xx_fh *fh = vq->priv_data; 679 struct cx231xx *dev = fh->dev; 680 unsigned long flags = 0; 681 682 if (in_interrupt()) 683 BUG(); 684 685 /* We used to wait for the buffer to finish here, but this didn't work 686 because, as we were keeping the state as VIDEOBUF_QUEUED, 687 videobuf_queue_cancel marked it as finished for us. 688 (Also, it could wedge forever if the hardware was misconfigured.) 689 690 This should be safe; by the time we get here, the buffer isn't 691 queued anymore. If we ever start marking the buffers as 692 VIDEOBUF_ACTIVE, it won't be, though. 693 */ 694 spin_lock_irqsave(&dev->video_mode.slock, flags); 695 if (dev->USE_ISO) { 696 if (dev->video_mode.isoc_ctl.buf == buf) 697 dev->video_mode.isoc_ctl.buf = NULL; 698 } else { 699 if (dev->video_mode.bulk_ctl.buf == buf) 700 dev->video_mode.bulk_ctl.buf = NULL; 701 } 702 spin_unlock_irqrestore(&dev->video_mode.slock, flags); 703 704 videobuf_vmalloc_free(&buf->vb); 705 buf->vb.state = VIDEOBUF_NEEDS_INIT; 706 } 707 708 static int 709 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, 710 enum v4l2_field field) 711 { 712 struct cx231xx_fh *fh = vq->priv_data; 713 struct cx231xx_buffer *buf = 714 container_of(vb, struct cx231xx_buffer, vb); 715 struct cx231xx *dev = fh->dev; 716 int rc = 0, urb_init = 0; 717 718 /* The only currently supported format is 16 bits/pixel */ 719 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth 720 + 7) >> 3; 721 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 722 return -EINVAL; 723 724 buf->vb.width = dev->width; 725 buf->vb.height = dev->height; 726 buf->vb.field = field; 727 728 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 729 rc = videobuf_iolock(vq, &buf->vb, NULL); 730 if (rc < 0) 731 goto fail; 732 } 733 734 if (dev->USE_ISO) { 735 if (!dev->video_mode.isoc_ctl.num_bufs) 736 urb_init = 1; 737 } else { 738 if (!dev->video_mode.bulk_ctl.num_bufs) 739 urb_init = 1; 740 } 741 /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n", 742 urb_init, dev->video_mode.max_pkt_size);*/ 743 if (urb_init) { 744 dev->mode_tv = 0; 745 if (dev->USE_ISO) 746 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS, 747 CX231XX_NUM_BUFS, 748 dev->video_mode.max_pkt_size, 749 cx231xx_isoc_copy); 750 else 751 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS, 752 CX231XX_NUM_BUFS, 753 dev->video_mode.max_pkt_size, 754 cx231xx_bulk_copy); 755 if (rc < 0) 756 goto fail; 757 } 758 759 buf->vb.state = VIDEOBUF_PREPARED; 760 return 0; 761 762 fail: 763 free_buffer(vq, buf); 764 return rc; 765 } 766 767 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 768 { 769 struct cx231xx_buffer *buf = 770 container_of(vb, struct cx231xx_buffer, vb); 771 struct cx231xx_fh *fh = vq->priv_data; 772 struct cx231xx *dev = fh->dev; 773 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq; 774 775 buf->vb.state = VIDEOBUF_QUEUED; 776 list_add_tail(&buf->vb.queue, &vidq->active); 777 778 } 779 780 static void buffer_release(struct videobuf_queue *vq, 781 struct videobuf_buffer *vb) 782 { 783 struct cx231xx_buffer *buf = 784 container_of(vb, struct cx231xx_buffer, vb); 785 struct cx231xx_fh *fh = vq->priv_data; 786 struct cx231xx *dev = (struct cx231xx *)fh->dev; 787 788 cx231xx_isocdbg("cx231xx: called buffer_release\n"); 789 790 free_buffer(vq, buf); 791 } 792 793 static struct videobuf_queue_ops cx231xx_video_qops = { 794 .buf_setup = buffer_setup, 795 .buf_prepare = buffer_prepare, 796 .buf_queue = buffer_queue, 797 .buf_release = buffer_release, 798 }; 799 800 /********************* v4l2 interface **************************************/ 801 802 void video_mux(struct cx231xx *dev, int index) 803 { 804 dev->video_input = index; 805 dev->ctl_ainput = INPUT(index)->amux; 806 807 cx231xx_set_video_input_mux(dev, index); 808 809 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0); 810 811 cx231xx_set_audio_input(dev, dev->ctl_ainput); 812 813 cx231xx_info("video_mux : %d\n", index); 814 815 /* do mode control overrides if required */ 816 cx231xx_do_mode_ctrl_overrides(dev); 817 } 818 819 /* Usage lock check functions */ 820 static int res_get(struct cx231xx_fh *fh) 821 { 822 struct cx231xx *dev = fh->dev; 823 int rc = 0; 824 825 /* This instance already has stream_on */ 826 if (fh->stream_on) 827 return rc; 828 829 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 830 if (dev->stream_on) 831 return -EBUSY; 832 dev->stream_on = 1; 833 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 834 if (dev->vbi_stream_on) 835 return -EBUSY; 836 dev->vbi_stream_on = 1; 837 } else 838 return -EINVAL; 839 840 fh->stream_on = 1; 841 842 return rc; 843 } 844 845 static int res_check(struct cx231xx_fh *fh) 846 { 847 return fh->stream_on; 848 } 849 850 static void res_free(struct cx231xx_fh *fh) 851 { 852 struct cx231xx *dev = fh->dev; 853 854 fh->stream_on = 0; 855 856 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 857 dev->stream_on = 0; 858 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 859 dev->vbi_stream_on = 0; 860 } 861 862 static int check_dev(struct cx231xx *dev) 863 { 864 if (dev->state & DEV_DISCONNECTED) { 865 cx231xx_errdev("v4l2 ioctl: device not present\n"); 866 return -ENODEV; 867 } 868 return 0; 869 } 870 871 /* ------------------------------------------------------------------ 872 IOCTL vidioc handling 873 ------------------------------------------------------------------*/ 874 875 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 876 struct v4l2_format *f) 877 { 878 struct cx231xx_fh *fh = priv; 879 struct cx231xx *dev = fh->dev; 880 881 f->fmt.pix.width = dev->width; 882 f->fmt.pix.height = dev->height; 883 f->fmt.pix.pixelformat = dev->format->fourcc; 884 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 885 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 886 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 887 888 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 889 f->fmt.pix.priv = 0; 890 891 return 0; 892 } 893 894 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc) 895 { 896 unsigned int i; 897 898 for (i = 0; i < ARRAY_SIZE(format); i++) 899 if (format[i].fourcc == fourcc) 900 return &format[i]; 901 902 return NULL; 903 } 904 905 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 906 struct v4l2_format *f) 907 { 908 struct cx231xx_fh *fh = priv; 909 struct cx231xx *dev = fh->dev; 910 unsigned int width = f->fmt.pix.width; 911 unsigned int height = f->fmt.pix.height; 912 unsigned int maxw = norm_maxw(dev); 913 unsigned int maxh = norm_maxh(dev); 914 struct cx231xx_fmt *fmt; 915 916 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 917 if (!fmt) { 918 cx231xx_videodbg("Fourcc format (%08x) invalid.\n", 919 f->fmt.pix.pixelformat); 920 return -EINVAL; 921 } 922 923 /* width must even because of the YUYV format 924 height must be even because of interlacing */ 925 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0); 926 927 f->fmt.pix.width = width; 928 f->fmt.pix.height = height; 929 f->fmt.pix.pixelformat = fmt->fourcc; 930 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3; 931 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 932 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 933 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 934 f->fmt.pix.priv = 0; 935 936 return 0; 937 } 938 939 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 940 struct v4l2_format *f) 941 { 942 struct cx231xx_fh *fh = priv; 943 struct cx231xx *dev = fh->dev; 944 int rc; 945 struct cx231xx_fmt *fmt; 946 struct v4l2_mbus_framefmt mbus_fmt; 947 948 rc = check_dev(dev); 949 if (rc < 0) 950 return rc; 951 952 vidioc_try_fmt_vid_cap(file, priv, f); 953 954 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 955 if (!fmt) 956 return -EINVAL; 957 958 if (videobuf_queue_is_busy(&fh->vb_vidq)) { 959 cx231xx_errdev("%s queue busy\n", __func__); 960 return -EBUSY; 961 } 962 963 if (dev->stream_on && !fh->stream_on) { 964 cx231xx_errdev("%s device in use by another fh\n", __func__); 965 return -EBUSY; 966 } 967 968 /* set new image size */ 969 dev->width = f->fmt.pix.width; 970 dev->height = f->fmt.pix.height; 971 dev->format = fmt; 972 973 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED); 974 call_all(dev, video, s_mbus_fmt, &mbus_fmt); 975 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt); 976 977 return rc; 978 } 979 980 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) 981 { 982 struct cx231xx_fh *fh = priv; 983 struct cx231xx *dev = fh->dev; 984 985 *id = dev->norm; 986 return 0; 987 } 988 989 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 990 { 991 struct cx231xx_fh *fh = priv; 992 struct cx231xx *dev = fh->dev; 993 struct v4l2_mbus_framefmt mbus_fmt; 994 int rc; 995 996 rc = check_dev(dev); 997 if (rc < 0) 998 return rc; 999 1000 if (dev->norm == norm) 1001 return 0; 1002 1003 if (videobuf_queue_is_busy(&fh->vb_vidq)) 1004 return -EBUSY; 1005 1006 dev->norm = norm; 1007 1008 /* Adjusts width/height, if needed */ 1009 dev->width = 720; 1010 dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480; 1011 1012 call_all(dev, core, s_std, dev->norm); 1013 1014 /* We need to reset basic properties in the decoder related to 1015 resolution (since a standard change effects things like the number 1016 of lines in VACT, etc) */ 1017 memset(&mbus_fmt, 0, sizeof(mbus_fmt)); 1018 mbus_fmt.code = V4L2_MBUS_FMT_FIXED; 1019 mbus_fmt.width = dev->width; 1020 mbus_fmt.height = dev->height; 1021 call_all(dev, video, s_mbus_fmt, &mbus_fmt); 1022 1023 /* do mode control overrides */ 1024 cx231xx_do_mode_ctrl_overrides(dev); 1025 1026 return 0; 1027 } 1028 1029 static const char *iname[] = { 1030 [CX231XX_VMUX_COMPOSITE1] = "Composite1", 1031 [CX231XX_VMUX_SVIDEO] = "S-Video", 1032 [CX231XX_VMUX_TELEVISION] = "Television", 1033 [CX231XX_VMUX_CABLE] = "Cable TV", 1034 [CX231XX_VMUX_DVB] = "DVB", 1035 [CX231XX_VMUX_DEBUG] = "for debug only", 1036 }; 1037 1038 int cx231xx_enum_input(struct file *file, void *priv, 1039 struct v4l2_input *i) 1040 { 1041 struct cx231xx_fh *fh = priv; 1042 struct cx231xx *dev = fh->dev; 1043 u32 gen_stat; 1044 unsigned int ret, n; 1045 1046 n = i->index; 1047 if (n >= MAX_CX231XX_INPUT) 1048 return -EINVAL; 1049 if (0 == INPUT(n)->type) 1050 return -EINVAL; 1051 1052 i->index = n; 1053 i->type = V4L2_INPUT_TYPE_CAMERA; 1054 1055 strcpy(i->name, iname[INPUT(n)->type]); 1056 1057 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) || 1058 (CX231XX_VMUX_CABLE == INPUT(n)->type)) 1059 i->type = V4L2_INPUT_TYPE_TUNER; 1060 1061 i->std = dev->vdev->tvnorms; 1062 1063 /* If they are asking about the active input, read signal status */ 1064 if (n == dev->video_input) { 1065 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1066 GEN_STAT, 2, &gen_stat, 4); 1067 if (ret > 0) { 1068 if ((gen_stat & FLD_VPRES) == 0x00) 1069 i->status |= V4L2_IN_ST_NO_SIGNAL; 1070 if ((gen_stat & FLD_HLOCK) == 0x00) 1071 i->status |= V4L2_IN_ST_NO_H_LOCK; 1072 } 1073 } 1074 1075 return 0; 1076 } 1077 1078 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i) 1079 { 1080 struct cx231xx_fh *fh = priv; 1081 struct cx231xx *dev = fh->dev; 1082 1083 *i = dev->video_input; 1084 1085 return 0; 1086 } 1087 1088 int cx231xx_s_input(struct file *file, void *priv, unsigned int i) 1089 { 1090 struct cx231xx_fh *fh = priv; 1091 struct cx231xx *dev = fh->dev; 1092 int rc; 1093 1094 dev->mode_tv = 0; 1095 rc = check_dev(dev); 1096 if (rc < 0) 1097 return rc; 1098 1099 if (i >= MAX_CX231XX_INPUT) 1100 return -EINVAL; 1101 if (0 == INPUT(i)->type) 1102 return -EINVAL; 1103 1104 video_mux(dev, i); 1105 1106 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION || 1107 INPUT(i)->type == CX231XX_VMUX_CABLE) { 1108 /* There's a tuner, so reset the standard and put it on the 1109 last known frequency (since it was probably powered down 1110 until now */ 1111 call_all(dev, core, s_std, dev->norm); 1112 } 1113 1114 return 0; 1115 } 1116 1117 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1118 { 1119 struct cx231xx_fh *fh = priv; 1120 struct cx231xx *dev = fh->dev; 1121 int rc; 1122 1123 rc = check_dev(dev); 1124 if (rc < 0) 1125 return rc; 1126 1127 if (0 != t->index) 1128 return -EINVAL; 1129 1130 strcpy(t->name, "Tuner"); 1131 1132 t->type = V4L2_TUNER_ANALOG_TV; 1133 t->capability = V4L2_TUNER_CAP_NORM; 1134 t->rangehigh = 0xffffffffUL; 1135 t->signal = 0xffff; /* LOCKED */ 1136 call_all(dev, tuner, g_tuner, t); 1137 1138 return 0; 1139 } 1140 1141 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) 1142 { 1143 struct cx231xx_fh *fh = priv; 1144 struct cx231xx *dev = fh->dev; 1145 int rc; 1146 1147 rc = check_dev(dev); 1148 if (rc < 0) 1149 return rc; 1150 1151 if (0 != t->index) 1152 return -EINVAL; 1153 #if 0 1154 call_all(dev, tuner, s_tuner, t); 1155 #endif 1156 return 0; 1157 } 1158 1159 int cx231xx_g_frequency(struct file *file, void *priv, 1160 struct v4l2_frequency *f) 1161 { 1162 struct cx231xx_fh *fh = priv; 1163 struct cx231xx *dev = fh->dev; 1164 1165 if (f->tuner) 1166 return -EINVAL; 1167 1168 f->frequency = dev->ctl_freq; 1169 1170 return 0; 1171 } 1172 1173 int cx231xx_s_frequency(struct file *file, void *priv, 1174 const struct v4l2_frequency *f) 1175 { 1176 struct cx231xx_fh *fh = priv; 1177 struct cx231xx *dev = fh->dev; 1178 struct v4l2_frequency new_freq = *f; 1179 int rc; 1180 u32 if_frequency = 5400000; 1181 1182 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n", 1183 f->frequency, f->type); 1184 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/ 1185 1186 rc = check_dev(dev); 1187 if (rc < 0) 1188 return rc; 1189 1190 if (0 != f->tuner) 1191 return -EINVAL; 1192 1193 /* set pre channel change settings in DIF first */ 1194 rc = cx231xx_tuner_pre_channel_change(dev); 1195 1196 call_all(dev, tuner, s_frequency, f); 1197 call_all(dev, tuner, g_frequency, &new_freq); 1198 dev->ctl_freq = new_freq.frequency; 1199 1200 /* set post channel change settings in DIF first */ 1201 rc = cx231xx_tuner_post_channel_change(dev); 1202 1203 if (dev->tuner_type == TUNER_NXP_TDA18271) { 1204 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443)) 1205 if_frequency = 5400000; /*5.4MHz */ 1206 else if (dev->norm & V4L2_STD_B) 1207 if_frequency = 6000000; /*6.0MHz */ 1208 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK)) 1209 if_frequency = 6900000; /*6.9MHz */ 1210 else if (dev->norm & V4L2_STD_GH) 1211 if_frequency = 7100000; /*7.1MHz */ 1212 else if (dev->norm & V4L2_STD_PAL_I) 1213 if_frequency = 7250000; /*7.25MHz */ 1214 else if (dev->norm & V4L2_STD_SECAM_L) 1215 if_frequency = 6900000; /*6.9MHz */ 1216 else if (dev->norm & V4L2_STD_SECAM_LC) 1217 if_frequency = 1250000; /*1.25MHz */ 1218 1219 cx231xx_info("if_frequency is set to %d\n", if_frequency); 1220 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1); 1221 1222 update_HH_register_after_set_DIF(dev); 1223 } 1224 1225 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency); 1226 1227 return rc; 1228 } 1229 1230 #ifdef CONFIG_VIDEO_ADV_DEBUG 1231 1232 int cx231xx_g_chip_info(struct file *file, void *fh, 1233 struct v4l2_dbg_chip_info *chip) 1234 { 1235 switch (chip->match.addr) { 1236 case 0: /* Cx231xx - internal registers */ 1237 return 0; 1238 case 1: /* AFE - read byte */ 1239 strlcpy(chip->name, "AFE (byte)", sizeof(chip->name)); 1240 return 0; 1241 case 2: /* Video Block - read byte */ 1242 strlcpy(chip->name, "Video (byte)", sizeof(chip->name)); 1243 return 0; 1244 case 3: /* I2S block - read byte */ 1245 strlcpy(chip->name, "I2S (byte)", sizeof(chip->name)); 1246 return 0; 1247 case 4: /* AFE - read dword */ 1248 strlcpy(chip->name, "AFE (dword)", sizeof(chip->name)); 1249 return 0; 1250 case 5: /* Video Block - read dword */ 1251 strlcpy(chip->name, "Video (dword)", sizeof(chip->name)); 1252 return 0; 1253 case 6: /* I2S Block - read dword */ 1254 strlcpy(chip->name, "I2S (dword)", sizeof(chip->name)); 1255 return 0; 1256 } 1257 return -EINVAL; 1258 } 1259 1260 int cx231xx_g_register(struct file *file, void *priv, 1261 struct v4l2_dbg_register *reg) 1262 { 1263 struct cx231xx_fh *fh = priv; 1264 struct cx231xx *dev = fh->dev; 1265 int ret; 1266 u8 value[4] = { 0, 0, 0, 0 }; 1267 u32 data = 0; 1268 1269 switch (reg->match.addr) { 1270 case 0: /* Cx231xx - internal registers */ 1271 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, 1272 (u16)reg->reg, value, 4); 1273 reg->val = value[0] | value[1] << 8 | 1274 value[2] << 16 | value[3] << 24; 1275 reg->size = 4; 1276 break; 1277 case 1: /* AFE - read byte */ 1278 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, 1279 (u16)reg->reg, 2, &data, 1); 1280 reg->val = data; 1281 reg->size = 1; 1282 break; 1283 case 2: /* Video Block - read byte */ 1284 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1285 (u16)reg->reg, 2, &data, 1); 1286 reg->val = data; 1287 reg->size = 1; 1288 break; 1289 case 3: /* I2S block - read byte */ 1290 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1291 (u16)reg->reg, 1, &data, 1); 1292 reg->val = data; 1293 reg->size = 1; 1294 break; 1295 case 4: /* AFE - read dword */ 1296 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, 1297 (u16)reg->reg, 2, &data, 4); 1298 reg->val = data; 1299 reg->size = 4; 1300 break; 1301 case 5: /* Video Block - read dword */ 1302 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1303 (u16)reg->reg, 2, &data, 4); 1304 reg->val = data; 1305 reg->size = 4; 1306 break; 1307 case 6: /* I2S Block - read dword */ 1308 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1309 (u16)reg->reg, 1, &data, 4); 1310 reg->val = data; 1311 reg->size = 4; 1312 break; 1313 default: 1314 return -EINVAL; 1315 } 1316 return ret < 0 ? ret : 0; 1317 } 1318 1319 int cx231xx_s_register(struct file *file, void *priv, 1320 const struct v4l2_dbg_register *reg) 1321 { 1322 struct cx231xx_fh *fh = priv; 1323 struct cx231xx *dev = fh->dev; 1324 int ret; 1325 u8 data[4] = { 0, 0, 0, 0 }; 1326 1327 switch (reg->match.addr) { 1328 case 0: /* cx231xx internal registers */ 1329 data[0] = (u8) reg->val; 1330 data[1] = (u8) (reg->val >> 8); 1331 data[2] = (u8) (reg->val >> 16); 1332 data[3] = (u8) (reg->val >> 24); 1333 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, 1334 (u16)reg->reg, data, 4); 1335 break; 1336 case 1: /* AFE - write byte */ 1337 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS, 1338 (u16)reg->reg, 2, reg->val, 1); 1339 break; 1340 case 2: /* Video Block - write byte */ 1341 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1342 (u16)reg->reg, 2, reg->val, 1); 1343 break; 1344 case 3: /* I2S block - write byte */ 1345 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1346 (u16)reg->reg, 1, reg->val, 1); 1347 break; 1348 case 4: /* AFE - write dword */ 1349 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS, 1350 (u16)reg->reg, 2, reg->val, 4); 1351 break; 1352 case 5: /* Video Block - write dword */ 1353 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1354 (u16)reg->reg, 2, reg->val, 4); 1355 break; 1356 case 6: /* I2S block - write dword */ 1357 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1358 (u16)reg->reg, 1, reg->val, 4); 1359 break; 1360 default: 1361 return -EINVAL; 1362 } 1363 return ret < 0 ? ret : 0; 1364 } 1365 #endif 1366 1367 static int vidioc_cropcap(struct file *file, void *priv, 1368 struct v4l2_cropcap *cc) 1369 { 1370 struct cx231xx_fh *fh = priv; 1371 struct cx231xx *dev = fh->dev; 1372 1373 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1374 return -EINVAL; 1375 1376 cc->bounds.left = 0; 1377 cc->bounds.top = 0; 1378 cc->bounds.width = dev->width; 1379 cc->bounds.height = dev->height; 1380 cc->defrect = cc->bounds; 1381 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ 1382 cc->pixelaspect.denominator = 59; 1383 1384 return 0; 1385 } 1386 1387 static int vidioc_streamon(struct file *file, void *priv, 1388 enum v4l2_buf_type type) 1389 { 1390 struct cx231xx_fh *fh = priv; 1391 struct cx231xx *dev = fh->dev; 1392 int rc; 1393 1394 rc = check_dev(dev); 1395 if (rc < 0) 1396 return rc; 1397 1398 rc = res_get(fh); 1399 1400 if (likely(rc >= 0)) 1401 rc = videobuf_streamon(&fh->vb_vidq); 1402 1403 call_all(dev, video, s_stream, 1); 1404 1405 return rc; 1406 } 1407 1408 static int vidioc_streamoff(struct file *file, void *priv, 1409 enum v4l2_buf_type type) 1410 { 1411 struct cx231xx_fh *fh = priv; 1412 struct cx231xx *dev = fh->dev; 1413 int rc; 1414 1415 rc = check_dev(dev); 1416 if (rc < 0) 1417 return rc; 1418 1419 if (type != fh->type) 1420 return -EINVAL; 1421 1422 cx25840_call(dev, video, s_stream, 0); 1423 1424 videobuf_streamoff(&fh->vb_vidq); 1425 res_free(fh); 1426 1427 return 0; 1428 } 1429 1430 int cx231xx_querycap(struct file *file, void *priv, 1431 struct v4l2_capability *cap) 1432 { 1433 struct video_device *vdev = video_devdata(file); 1434 struct cx231xx_fh *fh = priv; 1435 struct cx231xx *dev = fh->dev; 1436 1437 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver)); 1438 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card)); 1439 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 1440 1441 if (vdev->vfl_type == VFL_TYPE_RADIO) 1442 cap->device_caps = V4L2_CAP_RADIO; 1443 else { 1444 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; 1445 if (vdev->vfl_type == VFL_TYPE_VBI) 1446 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1447 else 1448 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1449 } 1450 if (dev->tuner_type != TUNER_ABSENT) 1451 cap->device_caps |= V4L2_CAP_TUNER; 1452 cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE | 1453 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | 1454 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; 1455 if (dev->radio_dev) 1456 cap->capabilities |= V4L2_CAP_RADIO; 1457 1458 return 0; 1459 } 1460 1461 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1462 struct v4l2_fmtdesc *f) 1463 { 1464 if (unlikely(f->index >= ARRAY_SIZE(format))) 1465 return -EINVAL; 1466 1467 strlcpy(f->description, format[f->index].name, sizeof(f->description)); 1468 f->pixelformat = format[f->index].fourcc; 1469 1470 return 0; 1471 } 1472 1473 /* RAW VBI ioctls */ 1474 1475 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1476 struct v4l2_format *f) 1477 { 1478 struct cx231xx_fh *fh = priv; 1479 struct cx231xx *dev = fh->dev; 1480 1481 f->fmt.vbi.sampling_rate = 6750000 * 4; 1482 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; 1483 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1484 f->fmt.vbi.offset = 0; 1485 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? 1486 PAL_VBI_START_LINE : NTSC_VBI_START_LINE; 1487 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? 1488 PAL_VBI_LINES : NTSC_VBI_LINES; 1489 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? 1490 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; 1491 f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; 1492 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved)); 1493 1494 return 0; 1495 1496 } 1497 1498 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv, 1499 struct v4l2_format *f) 1500 { 1501 struct cx231xx_fh *fh = priv; 1502 struct cx231xx *dev = fh->dev; 1503 1504 f->fmt.vbi.sampling_rate = 6750000 * 4; 1505 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; 1506 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1507 f->fmt.vbi.offset = 0; 1508 f->fmt.vbi.flags = 0; 1509 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? 1510 PAL_VBI_START_LINE : NTSC_VBI_START_LINE; 1511 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? 1512 PAL_VBI_LINES : NTSC_VBI_LINES; 1513 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? 1514 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; 1515 f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; 1516 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved)); 1517 1518 return 0; 1519 1520 } 1521 1522 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, 1523 struct v4l2_format *f) 1524 { 1525 struct cx231xx_fh *fh = priv; 1526 struct cx231xx *dev = fh->dev; 1527 1528 if (dev->vbi_stream_on && !fh->stream_on) { 1529 cx231xx_errdev("%s device in use by another fh\n", __func__); 1530 return -EBUSY; 1531 } 1532 return vidioc_try_fmt_vbi_cap(file, priv, f); 1533 } 1534 1535 static int vidioc_reqbufs(struct file *file, void *priv, 1536 struct v4l2_requestbuffers *rb) 1537 { 1538 struct cx231xx_fh *fh = priv; 1539 struct cx231xx *dev = fh->dev; 1540 int rc; 1541 1542 rc = check_dev(dev); 1543 if (rc < 0) 1544 return rc; 1545 1546 return videobuf_reqbufs(&fh->vb_vidq, rb); 1547 } 1548 1549 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b) 1550 { 1551 struct cx231xx_fh *fh = priv; 1552 struct cx231xx *dev = fh->dev; 1553 int rc; 1554 1555 rc = check_dev(dev); 1556 if (rc < 0) 1557 return rc; 1558 1559 return videobuf_querybuf(&fh->vb_vidq, b); 1560 } 1561 1562 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 1563 { 1564 struct cx231xx_fh *fh = priv; 1565 struct cx231xx *dev = fh->dev; 1566 int rc; 1567 1568 rc = check_dev(dev); 1569 if (rc < 0) 1570 return rc; 1571 1572 return videobuf_qbuf(&fh->vb_vidq, b); 1573 } 1574 1575 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 1576 { 1577 struct cx231xx_fh *fh = priv; 1578 struct cx231xx *dev = fh->dev; 1579 int rc; 1580 1581 rc = check_dev(dev); 1582 if (rc < 0) 1583 return rc; 1584 1585 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK); 1586 } 1587 1588 /* ----------------------------------------------------------- */ 1589 /* RADIO ESPECIFIC IOCTLS */ 1590 /* ----------------------------------------------------------- */ 1591 1592 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1593 { 1594 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 1595 1596 if (t->index) 1597 return -EINVAL; 1598 1599 strcpy(t->name, "Radio"); 1600 1601 call_all(dev, tuner, g_tuner, t); 1602 1603 return 0; 1604 } 1605 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) 1606 { 1607 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 1608 1609 if (t->index) 1610 return -EINVAL; 1611 1612 call_all(dev, tuner, s_tuner, t); 1613 1614 return 0; 1615 } 1616 1617 /* 1618 * cx231xx_v4l2_open() 1619 * inits the device and starts isoc transfer 1620 */ 1621 static int cx231xx_v4l2_open(struct file *filp) 1622 { 1623 int errCode = 0, radio = 0; 1624 struct video_device *vdev = video_devdata(filp); 1625 struct cx231xx *dev = video_drvdata(filp); 1626 struct cx231xx_fh *fh; 1627 enum v4l2_buf_type fh_type = 0; 1628 1629 switch (vdev->vfl_type) { 1630 case VFL_TYPE_GRABBER: 1631 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1632 break; 1633 case VFL_TYPE_VBI: 1634 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 1635 break; 1636 case VFL_TYPE_RADIO: 1637 radio = 1; 1638 break; 1639 } 1640 1641 cx231xx_videodbg("open dev=%s type=%s users=%d\n", 1642 video_device_node_name(vdev), v4l2_type_names[fh_type], 1643 dev->users); 1644 1645 #if 0 1646 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); 1647 if (errCode < 0) { 1648 cx231xx_errdev 1649 ("Device locked on digital mode. Can't open analog\n"); 1650 return -EBUSY; 1651 } 1652 #endif 1653 1654 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL); 1655 if (!fh) { 1656 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n"); 1657 return -ENOMEM; 1658 } 1659 if (mutex_lock_interruptible(&dev->lock)) { 1660 kfree(fh); 1661 return -ERESTARTSYS; 1662 } 1663 fh->dev = dev; 1664 fh->type = fh_type; 1665 filp->private_data = fh; 1666 v4l2_fh_init(&fh->fh, vdev); 1667 1668 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 1669 /* Power up in Analog TV mode */ 1670 if (dev->board.external_av) 1671 cx231xx_set_power_mode(dev, 1672 POLARIS_AVMODE_ENXTERNAL_AV); 1673 else 1674 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV); 1675 1676 #if 0 1677 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); 1678 #endif 1679 1680 /* set video alternate setting */ 1681 cx231xx_set_video_alternate(dev); 1682 1683 /* Needed, since GPIO might have disabled power of 1684 some i2c device */ 1685 cx231xx_config_i2c(dev); 1686 1687 /* device needs to be initialized before isoc transfer */ 1688 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input; 1689 1690 } 1691 if (radio) { 1692 cx231xx_videodbg("video_open: setting radio device\n"); 1693 1694 /* cx231xx_start_radio(dev); */ 1695 1696 call_all(dev, tuner, s_radio); 1697 } 1698 1699 dev->users++; 1700 1701 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1702 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops, 1703 NULL, &dev->video_mode.slock, 1704 fh->type, V4L2_FIELD_INTERLACED, 1705 sizeof(struct cx231xx_buffer), 1706 fh, &dev->lock); 1707 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1708 /* Set the required alternate setting VBI interface works in 1709 Bulk mode only */ 1710 cx231xx_set_alt_setting(dev, INDEX_VANC, 0); 1711 1712 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops, 1713 NULL, &dev->vbi_mode.slock, 1714 fh->type, V4L2_FIELD_SEQ_TB, 1715 sizeof(struct cx231xx_buffer), 1716 fh, &dev->lock); 1717 } 1718 mutex_unlock(&dev->lock); 1719 v4l2_fh_add(&fh->fh); 1720 1721 return errCode; 1722 } 1723 1724 /* 1725 * cx231xx_realease_resources() 1726 * unregisters the v4l2,i2c and usb devices 1727 * called when the device gets disconected or at module unload 1728 */ 1729 void cx231xx_release_analog_resources(struct cx231xx *dev) 1730 { 1731 1732 /*FIXME: I2C IR should be disconnected */ 1733 1734 if (dev->radio_dev) { 1735 if (video_is_registered(dev->radio_dev)) 1736 video_unregister_device(dev->radio_dev); 1737 else 1738 video_device_release(dev->radio_dev); 1739 dev->radio_dev = NULL; 1740 } 1741 if (dev->vbi_dev) { 1742 cx231xx_info("V4L2 device %s deregistered\n", 1743 video_device_node_name(dev->vbi_dev)); 1744 if (video_is_registered(dev->vbi_dev)) 1745 video_unregister_device(dev->vbi_dev); 1746 else 1747 video_device_release(dev->vbi_dev); 1748 dev->vbi_dev = NULL; 1749 } 1750 if (dev->vdev) { 1751 cx231xx_info("V4L2 device %s deregistered\n", 1752 video_device_node_name(dev->vdev)); 1753 1754 if (dev->board.has_417) 1755 cx231xx_417_unregister(dev); 1756 1757 if (video_is_registered(dev->vdev)) 1758 video_unregister_device(dev->vdev); 1759 else 1760 video_device_release(dev->vdev); 1761 dev->vdev = NULL; 1762 } 1763 v4l2_ctrl_handler_free(&dev->ctrl_handler); 1764 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler); 1765 } 1766 1767 /* 1768 * cx231xx_close() 1769 * stops streaming and deallocates all resources allocated by the v4l2 1770 * calls and ioctls 1771 */ 1772 static int cx231xx_close(struct file *filp) 1773 { 1774 struct cx231xx_fh *fh = filp->private_data; 1775 struct cx231xx *dev = fh->dev; 1776 1777 cx231xx_videodbg("users=%d\n", dev->users); 1778 1779 cx231xx_videodbg("users=%d\n", dev->users); 1780 if (res_check(fh)) 1781 res_free(fh); 1782 1783 /* 1784 * To workaround error number=-71 on EP0 for VideoGrabber, 1785 * need exclude following. 1786 * FIXME: It is probably safe to remove most of these, as we're 1787 * now avoiding the alternate setting for INDEX_VANC 1788 */ 1789 if (!dev->board.no_alt_vanc) 1790 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1791 videobuf_stop(&fh->vb_vidq); 1792 videobuf_mmap_free(&fh->vb_vidq); 1793 1794 /* the device is already disconnect, 1795 free the remaining resources */ 1796 if (dev->state & DEV_DISCONNECTED) { 1797 if (atomic_read(&dev->devlist_count) > 0) { 1798 cx231xx_release_resources(dev); 1799 fh->dev = NULL; 1800 return 0; 1801 } 1802 return 0; 1803 } 1804 1805 /* do this before setting alternate! */ 1806 cx231xx_uninit_vbi_isoc(dev); 1807 1808 /* set alternate 0 */ 1809 if (!dev->vbi_or_sliced_cc_mode) 1810 cx231xx_set_alt_setting(dev, INDEX_VANC, 0); 1811 else 1812 cx231xx_set_alt_setting(dev, INDEX_HANC, 0); 1813 1814 v4l2_fh_del(&fh->fh); 1815 v4l2_fh_exit(&fh->fh); 1816 kfree(fh); 1817 dev->users--; 1818 wake_up_interruptible_nr(&dev->open, 1); 1819 return 0; 1820 } 1821 1822 v4l2_fh_del(&fh->fh); 1823 dev->users--; 1824 if (!dev->users) { 1825 videobuf_stop(&fh->vb_vidq); 1826 videobuf_mmap_free(&fh->vb_vidq); 1827 1828 /* the device is already disconnect, 1829 free the remaining resources */ 1830 if (dev->state & DEV_DISCONNECTED) { 1831 cx231xx_release_resources(dev); 1832 fh->dev = NULL; 1833 return 0; 1834 } 1835 1836 /* Save some power by putting tuner to sleep */ 1837 call_all(dev, core, s_power, 0); 1838 1839 /* do this before setting alternate! */ 1840 if (dev->USE_ISO) 1841 cx231xx_uninit_isoc(dev); 1842 else 1843 cx231xx_uninit_bulk(dev); 1844 cx231xx_set_mode(dev, CX231XX_SUSPEND); 1845 1846 /* set alternate 0 */ 1847 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0); 1848 } 1849 v4l2_fh_exit(&fh->fh); 1850 kfree(fh); 1851 wake_up_interruptible_nr(&dev->open, 1); 1852 return 0; 1853 } 1854 1855 static int cx231xx_v4l2_close(struct file *filp) 1856 { 1857 struct cx231xx_fh *fh = filp->private_data; 1858 struct cx231xx *dev = fh->dev; 1859 int rc; 1860 1861 mutex_lock(&dev->lock); 1862 rc = cx231xx_close(filp); 1863 mutex_unlock(&dev->lock); 1864 return rc; 1865 } 1866 1867 /* 1868 * cx231xx_v4l2_read() 1869 * will allocate buffers when called for the first time 1870 */ 1871 static ssize_t 1872 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count, 1873 loff_t *pos) 1874 { 1875 struct cx231xx_fh *fh = filp->private_data; 1876 struct cx231xx *dev = fh->dev; 1877 int rc; 1878 1879 rc = check_dev(dev); 1880 if (rc < 0) 1881 return rc; 1882 1883 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) || 1884 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) { 1885 rc = res_get(fh); 1886 1887 if (unlikely(rc < 0)) 1888 return rc; 1889 1890 if (mutex_lock_interruptible(&dev->lock)) 1891 return -ERESTARTSYS; 1892 rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, 1893 filp->f_flags & O_NONBLOCK); 1894 mutex_unlock(&dev->lock); 1895 return rc; 1896 } 1897 return 0; 1898 } 1899 1900 /* 1901 * cx231xx_v4l2_poll() 1902 * will allocate buffers when called for the first time 1903 */ 1904 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait) 1905 { 1906 unsigned long req_events = poll_requested_events(wait); 1907 struct cx231xx_fh *fh = filp->private_data; 1908 struct cx231xx *dev = fh->dev; 1909 unsigned res = 0; 1910 int rc; 1911 1912 rc = check_dev(dev); 1913 if (rc < 0) 1914 return POLLERR; 1915 1916 rc = res_get(fh); 1917 1918 if (unlikely(rc < 0)) 1919 return POLLERR; 1920 1921 if (v4l2_event_pending(&fh->fh)) 1922 res |= POLLPRI; 1923 else 1924 poll_wait(filp, &fh->fh.wait, wait); 1925 1926 if (!(req_events & (POLLIN | POLLRDNORM))) 1927 return res; 1928 1929 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) || 1930 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) { 1931 mutex_lock(&dev->lock); 1932 res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait); 1933 mutex_unlock(&dev->lock); 1934 return res; 1935 } 1936 return res | POLLERR; 1937 } 1938 1939 /* 1940 * cx231xx_v4l2_mmap() 1941 */ 1942 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 1943 { 1944 struct cx231xx_fh *fh = filp->private_data; 1945 struct cx231xx *dev = fh->dev; 1946 int rc; 1947 1948 rc = check_dev(dev); 1949 if (rc < 0) 1950 return rc; 1951 1952 rc = res_get(fh); 1953 1954 if (unlikely(rc < 0)) 1955 return rc; 1956 1957 if (mutex_lock_interruptible(&dev->lock)) 1958 return -ERESTARTSYS; 1959 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); 1960 mutex_unlock(&dev->lock); 1961 1962 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", 1963 (unsigned long)vma->vm_start, 1964 (unsigned long)vma->vm_end - 1965 (unsigned long)vma->vm_start, rc); 1966 1967 return rc; 1968 } 1969 1970 static const struct v4l2_file_operations cx231xx_v4l_fops = { 1971 .owner = THIS_MODULE, 1972 .open = cx231xx_v4l2_open, 1973 .release = cx231xx_v4l2_close, 1974 .read = cx231xx_v4l2_read, 1975 .poll = cx231xx_v4l2_poll, 1976 .mmap = cx231xx_v4l2_mmap, 1977 .unlocked_ioctl = video_ioctl2, 1978 }; 1979 1980 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1981 .vidioc_querycap = cx231xx_querycap, 1982 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1983 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1984 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1985 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1986 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1987 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap, 1988 .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, 1989 .vidioc_cropcap = vidioc_cropcap, 1990 .vidioc_reqbufs = vidioc_reqbufs, 1991 .vidioc_querybuf = vidioc_querybuf, 1992 .vidioc_qbuf = vidioc_qbuf, 1993 .vidioc_dqbuf = vidioc_dqbuf, 1994 .vidioc_s_std = vidioc_s_std, 1995 .vidioc_g_std = vidioc_g_std, 1996 .vidioc_enum_input = cx231xx_enum_input, 1997 .vidioc_g_input = cx231xx_g_input, 1998 .vidioc_s_input = cx231xx_s_input, 1999 .vidioc_streamon = vidioc_streamon, 2000 .vidioc_streamoff = vidioc_streamoff, 2001 .vidioc_g_tuner = cx231xx_g_tuner, 2002 .vidioc_s_tuner = cx231xx_s_tuner, 2003 .vidioc_g_frequency = cx231xx_g_frequency, 2004 .vidioc_s_frequency = cx231xx_s_frequency, 2005 #ifdef CONFIG_VIDEO_ADV_DEBUG 2006 .vidioc_g_chip_info = cx231xx_g_chip_info, 2007 .vidioc_g_register = cx231xx_g_register, 2008 .vidioc_s_register = cx231xx_s_register, 2009 #endif 2010 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 2011 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 2012 }; 2013 2014 static struct video_device cx231xx_vbi_template; 2015 2016 static const struct video_device cx231xx_video_template = { 2017 .fops = &cx231xx_v4l_fops, 2018 .release = video_device_release, 2019 .ioctl_ops = &video_ioctl_ops, 2020 .tvnorms = V4L2_STD_ALL, 2021 }; 2022 2023 static const struct v4l2_file_operations radio_fops = { 2024 .owner = THIS_MODULE, 2025 .open = cx231xx_v4l2_open, 2026 .release = cx231xx_v4l2_close, 2027 .poll = v4l2_ctrl_poll, 2028 .unlocked_ioctl = video_ioctl2, 2029 }; 2030 2031 static const struct v4l2_ioctl_ops radio_ioctl_ops = { 2032 .vidioc_querycap = cx231xx_querycap, 2033 .vidioc_g_tuner = radio_g_tuner, 2034 .vidioc_s_tuner = radio_s_tuner, 2035 .vidioc_g_frequency = cx231xx_g_frequency, 2036 .vidioc_s_frequency = cx231xx_s_frequency, 2037 #ifdef CONFIG_VIDEO_ADV_DEBUG 2038 .vidioc_g_chip_info = cx231xx_g_chip_info, 2039 .vidioc_g_register = cx231xx_g_register, 2040 .vidioc_s_register = cx231xx_s_register, 2041 #endif 2042 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 2043 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 2044 }; 2045 2046 static struct video_device cx231xx_radio_template = { 2047 .name = "cx231xx-radio", 2048 .fops = &radio_fops, 2049 .ioctl_ops = &radio_ioctl_ops, 2050 }; 2051 2052 /******************************** usb interface ******************************/ 2053 2054 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev, 2055 const struct video_device 2056 *template, const char *type_name) 2057 { 2058 struct video_device *vfd; 2059 2060 vfd = video_device_alloc(); 2061 if (NULL == vfd) 2062 return NULL; 2063 2064 *vfd = *template; 2065 vfd->v4l2_dev = &dev->v4l2_dev; 2066 vfd->release = video_device_release; 2067 vfd->debug = video_debug; 2068 vfd->lock = &dev->lock; 2069 set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); 2070 2071 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name); 2072 2073 video_set_drvdata(vfd, dev); 2074 if (dev->tuner_type == TUNER_ABSENT) { 2075 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY); 2076 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY); 2077 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER); 2078 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER); 2079 } 2080 return vfd; 2081 } 2082 2083 int cx231xx_register_analog_devices(struct cx231xx *dev) 2084 { 2085 int ret; 2086 2087 cx231xx_info("%s: v4l2 driver version %s\n", 2088 dev->name, CX231XX_VERSION); 2089 2090 /* set default norm */ 2091 dev->norm = V4L2_STD_PAL; 2092 dev->width = norm_maxw(dev); 2093 dev->height = norm_maxh(dev); 2094 dev->interlaced = 0; 2095 2096 /* Analog specific initialization */ 2097 dev->format = &format[0]; 2098 2099 /* Set the initial input */ 2100 video_mux(dev, dev->video_input); 2101 2102 call_all(dev, core, s_std, dev->norm); 2103 2104 v4l2_ctrl_handler_init(&dev->ctrl_handler, 10); 2105 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5); 2106 2107 if (dev->sd_cx25840) { 2108 v4l2_ctrl_add_handler(&dev->ctrl_handler, 2109 dev->sd_cx25840->ctrl_handler, NULL); 2110 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler, 2111 dev->sd_cx25840->ctrl_handler, 2112 v4l2_ctrl_radio_filter); 2113 } 2114 2115 if (dev->ctrl_handler.error) 2116 return dev->ctrl_handler.error; 2117 if (dev->radio_ctrl_handler.error) 2118 return dev->radio_ctrl_handler.error; 2119 2120 /* enable vbi capturing */ 2121 /* write code here... */ 2122 2123 /* allocate and fill video video_device struct */ 2124 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video"); 2125 if (!dev->vdev) { 2126 cx231xx_errdev("cannot allocate video_device.\n"); 2127 return -ENODEV; 2128 } 2129 2130 dev->vdev->ctrl_handler = &dev->ctrl_handler; 2131 /* register v4l2 video video_device */ 2132 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, 2133 video_nr[dev->devno]); 2134 if (ret) { 2135 cx231xx_errdev("unable to register video device (error=%i).\n", 2136 ret); 2137 return ret; 2138 } 2139 2140 cx231xx_info("%s/0: registered device %s [v4l2]\n", 2141 dev->name, video_device_node_name(dev->vdev)); 2142 2143 /* Initialize VBI template */ 2144 cx231xx_vbi_template = cx231xx_video_template; 2145 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi"); 2146 2147 /* Allocate and fill vbi video_device struct */ 2148 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi"); 2149 2150 if (!dev->vbi_dev) { 2151 cx231xx_errdev("cannot allocate video_device.\n"); 2152 return -ENODEV; 2153 } 2154 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler; 2155 /* register v4l2 vbi video_device */ 2156 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 2157 vbi_nr[dev->devno]); 2158 if (ret < 0) { 2159 cx231xx_errdev("unable to register vbi device\n"); 2160 return ret; 2161 } 2162 2163 cx231xx_info("%s/0: registered device %s\n", 2164 dev->name, video_device_node_name(dev->vbi_dev)); 2165 2166 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) { 2167 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template, 2168 "radio"); 2169 if (!dev->radio_dev) { 2170 cx231xx_errdev("cannot allocate video_device.\n"); 2171 return -ENODEV; 2172 } 2173 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler; 2174 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, 2175 radio_nr[dev->devno]); 2176 if (ret < 0) { 2177 cx231xx_errdev("can't register radio device\n"); 2178 return ret; 2179 } 2180 cx231xx_info("Registered radio device as %s\n", 2181 video_device_node_name(dev->radio_dev)); 2182 } 2183 2184 cx231xx_info("V4L2 device registered as %s and %s\n", 2185 video_device_node_name(dev->vdev), 2186 video_device_node_name(dev->vbi_dev)); 2187 2188 return 0; 2189 } 2190