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-chip-ident.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 57static unsigned int isoc_debug; 58module_param(isoc_debug, int, 0644); 59MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 60 61#define cx231xx_isocdbg(fmt, arg...) \ 62do {\ 63 if (isoc_debug) { \ 64 printk(KERN_INFO "%s %s :"fmt, \ 65 dev->name, __func__ , ##arg); \ 66 } \ 67 } while (0) 68 69MODULE_AUTHOR(DRIVER_AUTHOR); 70MODULE_DESCRIPTION(DRIVER_DESC); 71MODULE_LICENSE("GPL"); 72MODULE_VERSION(CX231XX_VERSION); 73 74static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 75static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 76static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 77static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; 78 79module_param_array(card, int, NULL, 0444); 80module_param_array(video_nr, int, NULL, 0444); 81module_param_array(vbi_nr, int, NULL, 0444); 82module_param_array(radio_nr, int, NULL, 0444); 83 84MODULE_PARM_DESC(card, "card type"); 85MODULE_PARM_DESC(video_nr, "video device numbers"); 86MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 87MODULE_PARM_DESC(radio_nr, "radio device numbers"); 88 89static unsigned int video_debug; 90module_param(video_debug, int, 0644); 91MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 92 93/* supported video standards */ 94static 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/* supported controls */ 104/* Common to all boards */ 105 106/* ------------------------------------------------------------------- */ 107 108static const struct v4l2_queryctrl no_ctl = { 109 .name = "42", 110 .flags = V4L2_CTRL_FLAG_DISABLED, 111}; 112 113static struct cx231xx_ctrl cx231xx_ctls[] = { 114 /* --- video --- */ 115 { 116 .v = { 117 .id = V4L2_CID_BRIGHTNESS, 118 .name = "Brightness", 119 .minimum = 0x00, 120 .maximum = 0xff, 121 .step = 1, 122 .default_value = 0x7f, 123 .type = V4L2_CTRL_TYPE_INTEGER, 124 }, 125 .off = 128, 126 .reg = LUMA_CTRL, 127 .mask = 0x00ff, 128 .shift = 0, 129 }, { 130 .v = { 131 .id = V4L2_CID_CONTRAST, 132 .name = "Contrast", 133 .minimum = 0, 134 .maximum = 0xff, 135 .step = 1, 136 .default_value = 0x3f, 137 .type = V4L2_CTRL_TYPE_INTEGER, 138 }, 139 .off = 0, 140 .reg = LUMA_CTRL, 141 .mask = 0xff00, 142 .shift = 8, 143 }, { 144 .v = { 145 .id = V4L2_CID_HUE, 146 .name = "Hue", 147 .minimum = 0, 148 .maximum = 0xff, 149 .step = 1, 150 .default_value = 0x7f, 151 .type = V4L2_CTRL_TYPE_INTEGER, 152 }, 153 .off = 128, 154 .reg = CHROMA_CTRL, 155 .mask = 0xff0000, 156 .shift = 16, 157 }, { 158 /* strictly, this only describes only U saturation. 159 * V saturation is handled specially through code. 160 */ 161 .v = { 162 .id = V4L2_CID_SATURATION, 163 .name = "Saturation", 164 .minimum = 0, 165 .maximum = 0xff, 166 .step = 1, 167 .default_value = 0x7f, 168 .type = V4L2_CTRL_TYPE_INTEGER, 169 }, 170 .off = 0, 171 .reg = CHROMA_CTRL, 172 .mask = 0x00ff, 173 .shift = 0, 174 }, { 175 /* --- audio --- */ 176 .v = { 177 .id = V4L2_CID_AUDIO_MUTE, 178 .name = "Mute", 179 .minimum = 0, 180 .maximum = 1, 181 .default_value = 1, 182 .type = V4L2_CTRL_TYPE_BOOLEAN, 183 }, 184 .reg = PATH1_CTL1, 185 .mask = (0x1f << 24), 186 .shift = 24, 187 }, { 188 .v = { 189 .id = V4L2_CID_AUDIO_VOLUME, 190 .name = "Volume", 191 .minimum = 0, 192 .maximum = 0x3f, 193 .step = 1, 194 .default_value = 0x3f, 195 .type = V4L2_CTRL_TYPE_INTEGER, 196 }, 197 .reg = PATH1_VOL_CTL, 198 .mask = 0xff, 199 .shift = 0, 200 } 201}; 202static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls); 203 204static const u32 cx231xx_user_ctrls[] = { 205 V4L2_CID_USER_CLASS, 206 V4L2_CID_BRIGHTNESS, 207 V4L2_CID_CONTRAST, 208 V4L2_CID_SATURATION, 209 V4L2_CID_HUE, 210 V4L2_CID_AUDIO_VOLUME, 211#if 0 212 V4L2_CID_AUDIO_BALANCE, 213#endif 214 V4L2_CID_AUDIO_MUTE, 215 0 216}; 217 218static const u32 *ctrl_classes[] = { 219 cx231xx_user_ctrls, 220 NULL 221}; 222 223/* ------------------------------------------------------------------ 224 Video buffer and parser functions 225 ------------------------------------------------------------------*/ 226 227/* 228 * Announces that a buffer were filled and request the next 229 */ 230static inline void buffer_filled(struct cx231xx *dev, 231 struct cx231xx_dmaqueue *dma_q, 232 struct cx231xx_buffer *buf) 233{ 234 /* Advice that buffer was filled */ 235 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 236 buf->vb.state = VIDEOBUF_DONE; 237 buf->vb.field_count++; 238 do_gettimeofday(&buf->vb.ts); 239 240 if (dev->USE_ISO) 241 dev->video_mode.isoc_ctl.buf = NULL; 242 else 243 dev->video_mode.bulk_ctl.buf = NULL; 244 245 list_del(&buf->vb.queue); 246 wake_up(&buf->vb.done); 247} 248 249static inline void print_err_status(struct cx231xx *dev, int packet, int status) 250{ 251 char *errmsg = "Unknown"; 252 253 switch (status) { 254 case -ENOENT: 255 errmsg = "unlinked synchronuously"; 256 break; 257 case -ECONNRESET: 258 errmsg = "unlinked asynchronuously"; 259 break; 260 case -ENOSR: 261 errmsg = "Buffer error (overrun)"; 262 break; 263 case -EPIPE: 264 errmsg = "Stalled (device not responding)"; 265 break; 266 case -EOVERFLOW: 267 errmsg = "Babble (bad cable?)"; 268 break; 269 case -EPROTO: 270 errmsg = "Bit-stuff error (bad cable?)"; 271 break; 272 case -EILSEQ: 273 errmsg = "CRC/Timeout (could be anything)"; 274 break; 275 case -ETIME: 276 errmsg = "Device does not respond"; 277 break; 278 } 279 if (packet < 0) { 280 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg); 281 } else { 282 cx231xx_isocdbg("URB packet %d, status %d [%s].\n", 283 packet, status, errmsg); 284 } 285} 286 287/* 288 * video-buf generic routine to get the next available buffer 289 */ 290static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q, 291 struct cx231xx_buffer **buf) 292{ 293 struct cx231xx_video_mode *vmode = 294 container_of(dma_q, struct cx231xx_video_mode, vidq); 295 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode); 296 297 char *outp; 298 299 if (list_empty(&dma_q->active)) { 300 cx231xx_isocdbg("No active queue to serve\n"); 301 if (dev->USE_ISO) 302 dev->video_mode.isoc_ctl.buf = NULL; 303 else 304 dev->video_mode.bulk_ctl.buf = NULL; 305 *buf = NULL; 306 return; 307 } 308 309 /* Get the next buffer */ 310 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue); 311 312 /* Cleans up buffer - Useful for testing for frame/URB loss */ 313 outp = videobuf_to_vmalloc(&(*buf)->vb); 314 memset(outp, 0, (*buf)->vb.size); 315 316 if (dev->USE_ISO) 317 dev->video_mode.isoc_ctl.buf = *buf; 318 else 319 dev->video_mode.bulk_ctl.buf = *buf; 320 321 return; 322} 323 324/* 325 * Controls the isoc copy of each urb packet 326 */ 327static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb) 328{ 329 struct cx231xx_buffer *buf; 330 struct cx231xx_dmaqueue *dma_q = urb->context; 331 unsigned char *outp = NULL; 332 int i, rc = 1; 333 unsigned char *p_buffer; 334 u32 bytes_parsed = 0, buffer_size = 0; 335 u8 sav_eav = 0; 336 337 if (!dev) 338 return 0; 339 340 if (dev->state & DEV_DISCONNECTED) 341 return 0; 342 343 if (urb->status < 0) { 344 print_err_status(dev, -1, urb->status); 345 if (urb->status == -ENOENT) 346 return 0; 347 } 348 349 buf = dev->video_mode.isoc_ctl.buf; 350 if (buf != NULL) 351 outp = videobuf_to_vmalloc(&buf->vb); 352 353 for (i = 0; i < urb->number_of_packets; i++) { 354 int status = urb->iso_frame_desc[i].status; 355 356 if (status < 0) { 357 print_err_status(dev, i, status); 358 if (urb->iso_frame_desc[i].status != -EPROTO) 359 continue; 360 } 361 362 if (urb->iso_frame_desc[i].actual_length <= 0) { 363 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */ 364 continue; 365 } 366 if (urb->iso_frame_desc[i].actual_length > 367 dev->video_mode.max_pkt_size) { 368 cx231xx_isocdbg("packet bigger than packet size"); 369 continue; 370 } 371 372 /* get buffer pointer and length */ 373 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 374 buffer_size = urb->iso_frame_desc[i].actual_length; 375 bytes_parsed = 0; 376 377 if (dma_q->is_partial_line) { 378 /* Handle the case of a partial line */ 379 sav_eav = dma_q->last_sav; 380 } else { 381 /* Check for a SAV/EAV overlapping 382 the buffer boundary */ 383 sav_eav = 384 cx231xx_find_boundary_SAV_EAV(p_buffer, 385 dma_q->partial_buf, 386 &bytes_parsed); 387 } 388 389 sav_eav &= 0xF0; 390 /* Get the first line if we have some portion of an SAV/EAV from 391 the last buffer or a partial line */ 392 if (sav_eav) { 393 bytes_parsed += cx231xx_get_video_line(dev, dma_q, 394 sav_eav, /* SAV/EAV */ 395 p_buffer + bytes_parsed, /* p_buffer */ 396 buffer_size - bytes_parsed);/* buf size */ 397 } 398 399 /* Now parse data that is completely in this buffer */ 400 /* dma_q->is_partial_line = 0; */ 401 402 while (bytes_parsed < buffer_size) { 403 u32 bytes_used = 0; 404 405 sav_eav = cx231xx_find_next_SAV_EAV( 406 p_buffer + bytes_parsed, /* p_buffer */ 407 buffer_size - bytes_parsed, /* buf size */ 408 &bytes_used);/* bytes used to get SAV/EAV */ 409 410 bytes_parsed += bytes_used; 411 412 sav_eav &= 0xF0; 413 if (sav_eav && (bytes_parsed < buffer_size)) { 414 bytes_parsed += cx231xx_get_video_line(dev, 415 dma_q, sav_eav, /* SAV/EAV */ 416 p_buffer + bytes_parsed,/* p_buffer */ 417 buffer_size - bytes_parsed);/*buf size*/ 418 } 419 } 420 421 /* Save the last four bytes of the buffer so we can check the 422 buffer boundary condition next time */ 423 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); 424 bytes_parsed = 0; 425 426 } 427 return rc; 428} 429 430static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb) 431{ 432 struct cx231xx_buffer *buf; 433 struct cx231xx_dmaqueue *dma_q = urb->context; 434 unsigned char *outp = NULL; 435 int rc = 1; 436 unsigned char *p_buffer; 437 u32 bytes_parsed = 0, buffer_size = 0; 438 u8 sav_eav = 0; 439 440 if (!dev) 441 return 0; 442 443 if (dev->state & DEV_DISCONNECTED) 444 return 0; 445 446 if (urb->status < 0) { 447 print_err_status(dev, -1, urb->status); 448 if (urb->status == -ENOENT) 449 return 0; 450 } 451 452 buf = dev->video_mode.bulk_ctl.buf; 453 if (buf != NULL) 454 outp = videobuf_to_vmalloc(&buf->vb); 455 456 if (1) { 457 458 /* get buffer pointer and length */ 459 p_buffer = urb->transfer_buffer; 460 buffer_size = urb->actual_length; 461 bytes_parsed = 0; 462 463 if (dma_q->is_partial_line) { 464 /* Handle the case of a partial line */ 465 sav_eav = dma_q->last_sav; 466 } else { 467 /* Check for a SAV/EAV overlapping 468 the buffer boundary */ 469 sav_eav = 470 cx231xx_find_boundary_SAV_EAV(p_buffer, 471 dma_q->partial_buf, 472 &bytes_parsed); 473 } 474 475 sav_eav &= 0xF0; 476 /* Get the first line if we have some portion of an SAV/EAV from 477 the last buffer or a partial line */ 478 if (sav_eav) { 479 bytes_parsed += cx231xx_get_video_line(dev, dma_q, 480 sav_eav, /* SAV/EAV */ 481 p_buffer + bytes_parsed, /* p_buffer */ 482 buffer_size - bytes_parsed);/* buf size */ 483 } 484 485 /* Now parse data that is completely in this buffer */ 486 /* dma_q->is_partial_line = 0; */ 487 488 while (bytes_parsed < buffer_size) { 489 u32 bytes_used = 0; 490 491 sav_eav = cx231xx_find_next_SAV_EAV( 492 p_buffer + bytes_parsed, /* p_buffer */ 493 buffer_size - bytes_parsed, /* buf size */ 494 &bytes_used);/* bytes used to get SAV/EAV */ 495 496 bytes_parsed += bytes_used; 497 498 sav_eav &= 0xF0; 499 if (sav_eav && (bytes_parsed < buffer_size)) { 500 bytes_parsed += cx231xx_get_video_line(dev, 501 dma_q, sav_eav, /* SAV/EAV */ 502 p_buffer + bytes_parsed,/* p_buffer */ 503 buffer_size - bytes_parsed);/*buf size*/ 504 } 505 } 506 507 /* Save the last four bytes of the buffer so we can check the 508 buffer boundary condition next time */ 509 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); 510 bytes_parsed = 0; 511 512 } 513 return rc; 514} 515 516 517u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf, 518 u32 *p_bytes_used) 519{ 520 u32 bytes_used; 521 u8 boundary_bytes[8]; 522 u8 sav_eav = 0; 523 524 *p_bytes_used = 0; 525 526 /* Create an array of the last 4 bytes of the last buffer and the first 527 4 bytes of the current buffer. */ 528 529 memcpy(boundary_bytes, partial_buf, 4); 530 memcpy(boundary_bytes + 4, p_buffer, 4); 531 532 /* Check for the SAV/EAV in the boundary buffer */ 533 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8, 534 &bytes_used); 535 536 if (sav_eav) { 537 /* found a boundary SAV/EAV. Updates the bytes used to reflect 538 only those used in the new buffer */ 539 *p_bytes_used = bytes_used - 4; 540 } 541 542 return sav_eav; 543} 544 545u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used) 546{ 547 u32 i; 548 u8 sav_eav = 0; 549 550 /* 551 * Don't search if the buffer size is less than 4. It causes a page 552 * fault since buffer_size - 4 evaluates to a large number in that 553 * case. 554 */ 555 if (buffer_size < 4) { 556 *p_bytes_used = buffer_size; 557 return 0; 558 } 559 560 for (i = 0; i < (buffer_size - 3); i++) { 561 562 if ((p_buffer[i] == 0xFF) && 563 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) { 564 565 *p_bytes_used = i + 4; 566 sav_eav = p_buffer[i + 3]; 567 return sav_eav; 568 } 569 } 570 571 *p_bytes_used = buffer_size; 572 return 0; 573} 574 575u32 cx231xx_get_video_line(struct cx231xx *dev, 576 struct cx231xx_dmaqueue *dma_q, u8 sav_eav, 577 u8 *p_buffer, u32 buffer_size) 578{ 579 u32 bytes_copied = 0; 580 int current_field = -1; 581 582 switch (sav_eav) { 583 case SAV_ACTIVE_VIDEO_FIELD1: 584 /* looking for skipped line which occurred in PAL 720x480 mode. 585 In this case, there will be no active data contained 586 between the SAV and EAV */ 587 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && 588 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && 589 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || 590 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || 591 (p_buffer[3] == EAV_VBLANK_FIELD1) || 592 (p_buffer[3] == EAV_VBLANK_FIELD2))) 593 return bytes_copied; 594 current_field = 1; 595 break; 596 597 case SAV_ACTIVE_VIDEO_FIELD2: 598 /* looking for skipped line which occurred in PAL 720x480 mode. 599 In this case, there will be no active data contained between 600 the SAV and EAV */ 601 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && 602 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && 603 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || 604 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || 605 (p_buffer[3] == EAV_VBLANK_FIELD1) || 606 (p_buffer[3] == EAV_VBLANK_FIELD2))) 607 return bytes_copied; 608 current_field = 2; 609 break; 610 } 611 612 dma_q->last_sav = sav_eav; 613 614 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer, 615 buffer_size, current_field); 616 617 return bytes_copied; 618} 619 620u32 cx231xx_copy_video_line(struct cx231xx *dev, 621 struct cx231xx_dmaqueue *dma_q, u8 *p_line, 622 u32 length, int field_number) 623{ 624 u32 bytes_to_copy; 625 struct cx231xx_buffer *buf; 626 u32 _line_size = dev->width * 2; 627 628 if (dma_q->current_field != field_number) 629 cx231xx_reset_video_buffer(dev, dma_q); 630 631 /* get the buffer pointer */ 632 if (dev->USE_ISO) 633 buf = dev->video_mode.isoc_ctl.buf; 634 else 635 buf = dev->video_mode.bulk_ctl.buf; 636 637 /* Remember the field number for next time */ 638 dma_q->current_field = field_number; 639 640 bytes_to_copy = dma_q->bytes_left_in_line; 641 if (bytes_to_copy > length) 642 bytes_to_copy = length; 643 644 if (dma_q->lines_completed >= dma_q->lines_per_field) { 645 dma_q->bytes_left_in_line -= bytes_to_copy; 646 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 647 0 : 1; 648 return 0; 649 } 650 651 dma_q->is_partial_line = 1; 652 653 /* If we don't have a buffer, just return the number of bytes we would 654 have copied if we had a buffer. */ 655 if (!buf) { 656 dma_q->bytes_left_in_line -= bytes_to_copy; 657 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) 658 ? 0 : 1; 659 return bytes_to_copy; 660 } 661 662 /* copy the data to video buffer */ 663 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy); 664 665 dma_q->pos += bytes_to_copy; 666 dma_q->bytes_left_in_line -= bytes_to_copy; 667 668 if (dma_q->bytes_left_in_line == 0) { 669 dma_q->bytes_left_in_line = _line_size; 670 dma_q->lines_completed++; 671 dma_q->is_partial_line = 0; 672 673 if (cx231xx_is_buffer_done(dev, dma_q) && buf) { 674 buffer_filled(dev, dma_q, buf); 675 676 dma_q->pos = 0; 677 buf = NULL; 678 dma_q->lines_completed = 0; 679 } 680 } 681 682 return bytes_to_copy; 683} 684 685void cx231xx_reset_video_buffer(struct cx231xx *dev, 686 struct cx231xx_dmaqueue *dma_q) 687{ 688 struct cx231xx_buffer *buf; 689 690 /* handle the switch from field 1 to field 2 */ 691 if (dma_q->current_field == 1) { 692 if (dma_q->lines_completed >= dma_q->lines_per_field) 693 dma_q->field1_done = 1; 694 else 695 dma_q->field1_done = 0; 696 } 697 698 if (dev->USE_ISO) 699 buf = dev->video_mode.isoc_ctl.buf; 700 else 701 buf = dev->video_mode.bulk_ctl.buf; 702 703 if (buf == NULL) { 704 u8 *outp = NULL; 705 /* first try to get the buffer */ 706 get_next_buf(dma_q, &buf); 707 708 if (buf) 709 outp = videobuf_to_vmalloc(&buf->vb); 710 711 dma_q->pos = 0; 712 dma_q->field1_done = 0; 713 dma_q->current_field = -1; 714 } 715 716 /* reset the counters */ 717 dma_q->bytes_left_in_line = dev->width << 1; 718 dma_q->lines_completed = 0; 719} 720 721int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, 722 u8 *p_buffer, u32 bytes_to_copy) 723{ 724 u8 *p_out_buffer = NULL; 725 u32 current_line_bytes_copied = 0; 726 struct cx231xx_buffer *buf; 727 u32 _line_size = dev->width << 1; 728 void *startwrite; 729 int offset, lencopy; 730 731 if (dev->USE_ISO) 732 buf = dev->video_mode.isoc_ctl.buf; 733 else 734 buf = dev->video_mode.bulk_ctl.buf; 735 736 if (buf == NULL) 737 return -1; 738 739 p_out_buffer = videobuf_to_vmalloc(&buf->vb); 740 741 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line; 742 743 /* Offset field 2 one line from the top of the buffer */ 744 offset = (dma_q->current_field == 1) ? 0 : _line_size; 745 746 /* Offset for field 2 */ 747 startwrite = p_out_buffer + offset; 748 749 /* lines already completed in the current field */ 750 startwrite += (dma_q->lines_completed * _line_size * 2); 751 752 /* bytes already completed in the current line */ 753 startwrite += current_line_bytes_copied; 754 755 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ? 756 bytes_to_copy : dma_q->bytes_left_in_line; 757 758 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size)) 759 return 0; 760 761 /* The below copies the UYVY data straight into video buffer */ 762 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy); 763 764 return 0; 765} 766 767void cx231xx_swab(u16 *from, u16 *to, u16 len) 768{ 769 u16 i; 770 771 if (len <= 0) 772 return; 773 774 for (i = 0; i < len / 2; i++) 775 to[i] = (from[i] << 8) | (from[i] >> 8); 776} 777 778u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q) 779{ 780 u8 buffer_complete = 0; 781 782 /* Dual field stream */ 783 buffer_complete = ((dma_q->current_field == 2) && 784 (dma_q->lines_completed >= dma_q->lines_per_field) && 785 dma_q->field1_done); 786 787 return buffer_complete; 788} 789 790/* ------------------------------------------------------------------ 791 Videobuf operations 792 ------------------------------------------------------------------*/ 793 794static int 795buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) 796{ 797 struct cx231xx_fh *fh = vq->priv_data; 798 struct cx231xx *dev = fh->dev; 799 800 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3; 801 if (0 == *count) 802 *count = CX231XX_DEF_BUF; 803 804 if (*count < CX231XX_MIN_BUF) 805 *count = CX231XX_MIN_BUF; 806 807 return 0; 808} 809 810/* This is called *without* dev->slock held; please keep it that way */ 811static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf) 812{ 813 struct cx231xx_fh *fh = vq->priv_data; 814 struct cx231xx *dev = fh->dev; 815 unsigned long flags = 0; 816 817 if (in_interrupt()) 818 BUG(); 819 820 /* We used to wait for the buffer to finish here, but this didn't work 821 because, as we were keeping the state as VIDEOBUF_QUEUED, 822 videobuf_queue_cancel marked it as finished for us. 823 (Also, it could wedge forever if the hardware was misconfigured.) 824 825 This should be safe; by the time we get here, the buffer isn't 826 queued anymore. If we ever start marking the buffers as 827 VIDEOBUF_ACTIVE, it won't be, though. 828 */ 829 spin_lock_irqsave(&dev->video_mode.slock, flags); 830 if (dev->USE_ISO) { 831 if (dev->video_mode.isoc_ctl.buf == buf) 832 dev->video_mode.isoc_ctl.buf = NULL; 833 } else { 834 if (dev->video_mode.bulk_ctl.buf == buf) 835 dev->video_mode.bulk_ctl.buf = NULL; 836 } 837 spin_unlock_irqrestore(&dev->video_mode.slock, flags); 838 839 videobuf_vmalloc_free(&buf->vb); 840 buf->vb.state = VIDEOBUF_NEEDS_INIT; 841} 842 843static int 844buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, 845 enum v4l2_field field) 846{ 847 struct cx231xx_fh *fh = vq->priv_data; 848 struct cx231xx_buffer *buf = 849 container_of(vb, struct cx231xx_buffer, vb); 850 struct cx231xx *dev = fh->dev; 851 int rc = 0, urb_init = 0; 852 853 /* The only currently supported format is 16 bits/pixel */ 854 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth 855 + 7) >> 3; 856 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 857 return -EINVAL; 858 859 buf->vb.width = dev->width; 860 buf->vb.height = dev->height; 861 buf->vb.field = field; 862 863 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 864 rc = videobuf_iolock(vq, &buf->vb, NULL); 865 if (rc < 0) 866 goto fail; 867 } 868 869 if (dev->USE_ISO) { 870 if (!dev->video_mode.isoc_ctl.num_bufs) 871 urb_init = 1; 872 } else { 873 if (!dev->video_mode.bulk_ctl.num_bufs) 874 urb_init = 1; 875 } 876 /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n", 877 urb_init, dev->video_mode.max_pkt_size);*/ 878 if (urb_init) { 879 dev->mode_tv = 0; 880 if (dev->USE_ISO) 881 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS, 882 CX231XX_NUM_BUFS, 883 dev->video_mode.max_pkt_size, 884 cx231xx_isoc_copy); 885 else 886 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS, 887 CX231XX_NUM_BUFS, 888 dev->video_mode.max_pkt_size, 889 cx231xx_bulk_copy); 890 if (rc < 0) 891 goto fail; 892 } 893 894 buf->vb.state = VIDEOBUF_PREPARED; 895 return 0; 896 897fail: 898 free_buffer(vq, buf); 899 return rc; 900} 901 902static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 903{ 904 struct cx231xx_buffer *buf = 905 container_of(vb, struct cx231xx_buffer, vb); 906 struct cx231xx_fh *fh = vq->priv_data; 907 struct cx231xx *dev = fh->dev; 908 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq; 909 910 buf->vb.state = VIDEOBUF_QUEUED; 911 list_add_tail(&buf->vb.queue, &vidq->active); 912 913} 914 915static void buffer_release(struct videobuf_queue *vq, 916 struct videobuf_buffer *vb) 917{ 918 struct cx231xx_buffer *buf = 919 container_of(vb, struct cx231xx_buffer, vb); 920 struct cx231xx_fh *fh = vq->priv_data; 921 struct cx231xx *dev = (struct cx231xx *)fh->dev; 922 923 cx231xx_isocdbg("cx231xx: called buffer_release\n"); 924 925 free_buffer(vq, buf); 926} 927 928static struct videobuf_queue_ops cx231xx_video_qops = { 929 .buf_setup = buffer_setup, 930 .buf_prepare = buffer_prepare, 931 .buf_queue = buffer_queue, 932 .buf_release = buffer_release, 933}; 934 935/********************* v4l2 interface **************************************/ 936 937void video_mux(struct cx231xx *dev, int index) 938{ 939 dev->video_input = index; 940 dev->ctl_ainput = INPUT(index)->amux; 941 942 cx231xx_set_video_input_mux(dev, index); 943 944 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0); 945 946 cx231xx_set_audio_input(dev, dev->ctl_ainput); 947 948 cx231xx_info("video_mux : %d\n", index); 949 950 /* do mode control overrides if required */ 951 cx231xx_do_mode_ctrl_overrides(dev); 952} 953 954/* Usage lock check functions */ 955static int res_get(struct cx231xx_fh *fh) 956{ 957 struct cx231xx *dev = fh->dev; 958 int rc = 0; 959 960 /* This instance already has stream_on */ 961 if (fh->stream_on) 962 return rc; 963 964 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 965 if (dev->stream_on) 966 return -EBUSY; 967 dev->stream_on = 1; 968 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 969 if (dev->vbi_stream_on) 970 return -EBUSY; 971 dev->vbi_stream_on = 1; 972 } else 973 return -EINVAL; 974 975 fh->stream_on = 1; 976 977 return rc; 978} 979 980static int res_check(struct cx231xx_fh *fh) 981{ 982 return fh->stream_on; 983} 984 985static void res_free(struct cx231xx_fh *fh) 986{ 987 struct cx231xx *dev = fh->dev; 988 989 fh->stream_on = 0; 990 991 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 992 dev->stream_on = 0; 993 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 994 dev->vbi_stream_on = 0; 995} 996 997static int check_dev(struct cx231xx *dev) 998{ 999 if (dev->state & DEV_DISCONNECTED) { 1000 cx231xx_errdev("v4l2 ioctl: device not present\n"); 1001 return -ENODEV; 1002 } 1003 return 0; 1004} 1005 1006/* ------------------------------------------------------------------ 1007 IOCTL vidioc handling 1008 ------------------------------------------------------------------*/ 1009 1010static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1011 struct v4l2_format *f) 1012{ 1013 struct cx231xx_fh *fh = priv; 1014 struct cx231xx *dev = fh->dev; 1015 1016 f->fmt.pix.width = dev->width; 1017 f->fmt.pix.height = dev->height; 1018 f->fmt.pix.pixelformat = dev->format->fourcc; 1019 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 1020 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 1021 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1022 1023 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1024 1025 return 0; 1026} 1027 1028static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc) 1029{ 1030 unsigned int i; 1031 1032 for (i = 0; i < ARRAY_SIZE(format); i++) 1033 if (format[i].fourcc == fourcc) 1034 return &format[i]; 1035 1036 return NULL; 1037} 1038 1039static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1040 struct v4l2_format *f) 1041{ 1042 struct cx231xx_fh *fh = priv; 1043 struct cx231xx *dev = fh->dev; 1044 unsigned int width = f->fmt.pix.width; 1045 unsigned int height = f->fmt.pix.height; 1046 unsigned int maxw = norm_maxw(dev); 1047 unsigned int maxh = norm_maxh(dev); 1048 struct cx231xx_fmt *fmt; 1049 1050 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1051 if (!fmt) { 1052 cx231xx_videodbg("Fourcc format (%08x) invalid.\n", 1053 f->fmt.pix.pixelformat); 1054 return -EINVAL; 1055 } 1056 1057 /* width must even because of the YUYV format 1058 height must be even because of interlacing */ 1059 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0); 1060 1061 f->fmt.pix.width = width; 1062 f->fmt.pix.height = height; 1063 f->fmt.pix.pixelformat = fmt->fourcc; 1064 f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3; 1065 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 1066 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1067 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1068 1069 return 0; 1070} 1071 1072static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1073 struct v4l2_format *f) 1074{ 1075 struct cx231xx_fh *fh = priv; 1076 struct cx231xx *dev = fh->dev; 1077 int rc; 1078 struct cx231xx_fmt *fmt; 1079 struct v4l2_mbus_framefmt mbus_fmt; 1080 1081 rc = check_dev(dev); 1082 if (rc < 0) 1083 return rc; 1084 1085 vidioc_try_fmt_vid_cap(file, priv, f); 1086 1087 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1088 if (!fmt) 1089 return -EINVAL; 1090 1091 if (videobuf_queue_is_busy(&fh->vb_vidq)) { 1092 cx231xx_errdev("%s queue busy\n", __func__); 1093 return -EBUSY; 1094 } 1095 1096 if (dev->stream_on && !fh->stream_on) { 1097 cx231xx_errdev("%s device in use by another fh\n", __func__); 1098 return -EBUSY; 1099 } 1100 1101 /* set new image size */ 1102 dev->width = f->fmt.pix.width; 1103 dev->height = f->fmt.pix.height; 1104 dev->format = fmt; 1105 1106 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED); 1107 call_all(dev, video, s_mbus_fmt, &mbus_fmt); 1108 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt); 1109 1110 return rc; 1111} 1112 1113static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) 1114{ 1115 struct cx231xx_fh *fh = priv; 1116 struct cx231xx *dev = fh->dev; 1117 1118 *id = dev->norm; 1119 return 0; 1120} 1121 1122static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm) 1123{ 1124 struct cx231xx_fh *fh = priv; 1125 struct cx231xx *dev = fh->dev; 1126 struct v4l2_mbus_framefmt mbus_fmt; 1127 struct v4l2_format f; 1128 int rc; 1129 1130 rc = check_dev(dev); 1131 if (rc < 0) 1132 return rc; 1133 1134 cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm); 1135 1136 dev->norm = *norm; 1137 1138 /* Adjusts width/height, if needed */ 1139 f.fmt.pix.width = dev->width; 1140 f.fmt.pix.height = dev->height; 1141 vidioc_try_fmt_vid_cap(file, priv, &f); 1142 1143 call_all(dev, core, s_std, dev->norm); 1144 1145 /* We need to reset basic properties in the decoder related to 1146 resolution (since a standard change effects things like the number 1147 of lines in VACT, etc) */ 1148 v4l2_fill_mbus_format(&mbus_fmt, &f.fmt.pix, V4L2_MBUS_FMT_FIXED); 1149 call_all(dev, video, s_mbus_fmt, &mbus_fmt); 1150 v4l2_fill_pix_format(&f.fmt.pix, &mbus_fmt); 1151 1152 /* set new image size */ 1153 dev->width = f.fmt.pix.width; 1154 dev->height = f.fmt.pix.height; 1155 1156 /* do mode control overrides */ 1157 cx231xx_do_mode_ctrl_overrides(dev); 1158 1159 return 0; 1160} 1161 1162static const char *iname[] = { 1163 [CX231XX_VMUX_COMPOSITE1] = "Composite1", 1164 [CX231XX_VMUX_SVIDEO] = "S-Video", 1165 [CX231XX_VMUX_TELEVISION] = "Television", 1166 [CX231XX_VMUX_CABLE] = "Cable TV", 1167 [CX231XX_VMUX_DVB] = "DVB", 1168 [CX231XX_VMUX_DEBUG] = "for debug only", 1169}; 1170 1171static int vidioc_enum_input(struct file *file, void *priv, 1172 struct v4l2_input *i) 1173{ 1174 struct cx231xx_fh *fh = priv; 1175 struct cx231xx *dev = fh->dev; 1176 u32 gen_stat; 1177 unsigned int ret, n; 1178 1179 n = i->index; 1180 if (n >= MAX_CX231XX_INPUT) 1181 return -EINVAL; 1182 if (0 == INPUT(n)->type) 1183 return -EINVAL; 1184 1185 i->index = n; 1186 i->type = V4L2_INPUT_TYPE_CAMERA; 1187 1188 strcpy(i->name, iname[INPUT(n)->type]); 1189 1190 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) || 1191 (CX231XX_VMUX_CABLE == INPUT(n)->type)) 1192 i->type = V4L2_INPUT_TYPE_TUNER; 1193 1194 i->std = dev->vdev->tvnorms; 1195 1196 /* If they are asking about the active input, read signal status */ 1197 if (n == dev->video_input) { 1198 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1199 GEN_STAT, 2, &gen_stat, 4); 1200 if (ret > 0) { 1201 if ((gen_stat & FLD_VPRES) == 0x00) 1202 i->status |= V4L2_IN_ST_NO_SIGNAL; 1203 if ((gen_stat & FLD_HLOCK) == 0x00) 1204 i->status |= V4L2_IN_ST_NO_H_LOCK; 1205 } 1206 } 1207 1208 return 0; 1209} 1210 1211static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1212{ 1213 struct cx231xx_fh *fh = priv; 1214 struct cx231xx *dev = fh->dev; 1215 1216 *i = dev->video_input; 1217 1218 return 0; 1219} 1220 1221static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 1222{ 1223 struct cx231xx_fh *fh = priv; 1224 struct cx231xx *dev = fh->dev; 1225 int rc; 1226 1227 dev->mode_tv = 0; 1228 rc = check_dev(dev); 1229 if (rc < 0) 1230 return rc; 1231 1232 if (i >= MAX_CX231XX_INPUT) 1233 return -EINVAL; 1234 if (0 == INPUT(i)->type) 1235 return -EINVAL; 1236 1237 video_mux(dev, i); 1238 1239 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION || 1240 INPUT(i)->type == CX231XX_VMUX_CABLE) { 1241 /* There's a tuner, so reset the standard and put it on the 1242 last known frequency (since it was probably powered down 1243 until now */ 1244 call_all(dev, core, s_std, dev->norm); 1245 } 1246 1247 return 0; 1248} 1249 1250static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1251{ 1252 struct cx231xx_fh *fh = priv; 1253 struct cx231xx *dev = fh->dev; 1254 1255 switch (a->index) { 1256 case CX231XX_AMUX_VIDEO: 1257 strcpy(a->name, "Television"); 1258 break; 1259 case CX231XX_AMUX_LINE_IN: 1260 strcpy(a->name, "Line In"); 1261 break; 1262 default: 1263 return -EINVAL; 1264 } 1265 1266 a->index = dev->ctl_ainput; 1267 a->capability = V4L2_AUDCAP_STEREO; 1268 1269 return 0; 1270} 1271 1272static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) 1273{ 1274 struct cx231xx_fh *fh = priv; 1275 struct cx231xx *dev = fh->dev; 1276 int status = 0; 1277 1278 /* Doesn't allow manual routing */ 1279 if (a->index != dev->ctl_ainput) 1280 return -EINVAL; 1281 1282 dev->ctl_ainput = INPUT(a->index)->amux; 1283 status = cx231xx_set_audio_input(dev, dev->ctl_ainput); 1284 1285 return status; 1286} 1287 1288static int vidioc_queryctrl(struct file *file, void *priv, 1289 struct v4l2_queryctrl *qc) 1290{ 1291 struct cx231xx_fh *fh = priv; 1292 struct cx231xx *dev = fh->dev; 1293 int id = qc->id; 1294 int i; 1295 int rc; 1296 1297 rc = check_dev(dev); 1298 if (rc < 0) 1299 return rc; 1300 1301 qc->id = v4l2_ctrl_next(ctrl_classes, qc->id); 1302 if (unlikely(qc->id == 0)) 1303 return -EINVAL; 1304 1305 memset(qc, 0, sizeof(*qc)); 1306 1307 qc->id = id; 1308 1309 if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1) 1310 return -EINVAL; 1311 1312 for (i = 0; i < CX231XX_CTLS; i++) 1313 if (cx231xx_ctls[i].v.id == qc->id) 1314 break; 1315 1316 if (i == CX231XX_CTLS) { 1317 *qc = no_ctl; 1318 return 0; 1319 } 1320 *qc = cx231xx_ctls[i].v; 1321 1322 call_all(dev, core, queryctrl, qc); 1323 1324 if (qc->type) 1325 return 0; 1326 else 1327 return -EINVAL; 1328} 1329 1330static int vidioc_g_ctrl(struct file *file, void *priv, 1331 struct v4l2_control *ctrl) 1332{ 1333 struct cx231xx_fh *fh = priv; 1334 struct cx231xx *dev = fh->dev; 1335 int rc; 1336 1337 rc = check_dev(dev); 1338 if (rc < 0) 1339 return rc; 1340 1341 call_all(dev, core, g_ctrl, ctrl); 1342 return rc; 1343} 1344 1345static int vidioc_s_ctrl(struct file *file, void *priv, 1346 struct v4l2_control *ctrl) 1347{ 1348 struct cx231xx_fh *fh = priv; 1349 struct cx231xx *dev = fh->dev; 1350 int rc; 1351 1352 rc = check_dev(dev); 1353 if (rc < 0) 1354 return rc; 1355 1356 call_all(dev, core, s_ctrl, ctrl); 1357 return rc; 1358} 1359 1360static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1361{ 1362 struct cx231xx_fh *fh = priv; 1363 struct cx231xx *dev = fh->dev; 1364 int rc; 1365 1366 rc = check_dev(dev); 1367 if (rc < 0) 1368 return rc; 1369 1370 if (0 != t->index) 1371 return -EINVAL; 1372 1373 strcpy(t->name, "Tuner"); 1374 1375 t->type = V4L2_TUNER_ANALOG_TV; 1376 t->capability = V4L2_TUNER_CAP_NORM; 1377 t->rangehigh = 0xffffffffUL; 1378 t->signal = 0xffff; /* LOCKED */ 1379 1380 return 0; 1381} 1382 1383static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1384{ 1385 struct cx231xx_fh *fh = priv; 1386 struct cx231xx *dev = fh->dev; 1387 int rc; 1388 1389 rc = check_dev(dev); 1390 if (rc < 0) 1391 return rc; 1392 1393 if (0 != t->index) 1394 return -EINVAL; 1395#if 0 1396 call_all(dev, tuner, s_tuner, t); 1397#endif 1398 return 0; 1399} 1400 1401static int vidioc_g_frequency(struct file *file, void *priv, 1402 struct v4l2_frequency *f) 1403{ 1404 struct cx231xx_fh *fh = priv; 1405 struct cx231xx *dev = fh->dev; 1406 1407 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 1408 f->frequency = dev->ctl_freq; 1409 1410 call_all(dev, tuner, g_frequency, f); 1411 1412 return 0; 1413} 1414 1415static int vidioc_s_frequency(struct file *file, void *priv, 1416 struct v4l2_frequency *f) 1417{ 1418 struct cx231xx_fh *fh = priv; 1419 struct cx231xx *dev = fh->dev; 1420 int rc; 1421 u32 if_frequency = 5400000; 1422 1423 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n", 1424 f->frequency, f->type); 1425 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/ 1426 1427 rc = check_dev(dev); 1428 if (rc < 0) 1429 return rc; 1430 1431 if (0 != f->tuner) 1432 return -EINVAL; 1433 1434 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) 1435 return -EINVAL; 1436 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) 1437 return -EINVAL; 1438 1439 /* set pre channel change settings in DIF first */ 1440 rc = cx231xx_tuner_pre_channel_change(dev); 1441 1442 dev->ctl_freq = f->frequency; 1443 call_all(dev, tuner, s_frequency, f); 1444 1445 /* set post channel change settings in DIF first */ 1446 rc = cx231xx_tuner_post_channel_change(dev); 1447 1448 if (dev->tuner_type == TUNER_NXP_TDA18271) { 1449 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443)) 1450 if_frequency = 5400000; /*5.4MHz */ 1451 else if (dev->norm & V4L2_STD_B) 1452 if_frequency = 6000000; /*6.0MHz */ 1453 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK)) 1454 if_frequency = 6900000; /*6.9MHz */ 1455 else if (dev->norm & V4L2_STD_GH) 1456 if_frequency = 7100000; /*7.1MHz */ 1457 else if (dev->norm & V4L2_STD_PAL_I) 1458 if_frequency = 7250000; /*7.25MHz */ 1459 else if (dev->norm & V4L2_STD_SECAM_L) 1460 if_frequency = 6900000; /*6.9MHz */ 1461 else if (dev->norm & V4L2_STD_SECAM_LC) 1462 if_frequency = 1250000; /*1.25MHz */ 1463 1464 cx231xx_info("if_frequency is set to %d\n", if_frequency); 1465 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1); 1466 1467 update_HH_register_after_set_DIF(dev); 1468 } 1469 1470 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency); 1471 1472 return rc; 1473} 1474 1475#ifdef CONFIG_VIDEO_ADV_DEBUG 1476 1477/* 1478 -R, --list-registers=type=<host/i2cdrv/i2caddr>, 1479 chip=<chip>[,min=<addr>,max=<addr>] 1480 dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER] 1481 -r, --set-register=type=<host/i2cdrv/i2caddr>, 1482 chip=<chip>,reg=<addr>,val=<val> 1483 set the register [VIDIOC_DBG_S_REGISTER] 1484 1485 if type == host, then <chip> is the hosts chip ID (default 0) 1486 if type == i2cdrv (default), then <chip> is the I2C driver name or ID 1487 if type == i2caddr, then <chip> is the 7-bit I2C address 1488*/ 1489 1490static int vidioc_g_register(struct file *file, void *priv, 1491 struct v4l2_dbg_register *reg) 1492{ 1493 struct cx231xx_fh *fh = priv; 1494 struct cx231xx *dev = fh->dev; 1495 int ret = 0; 1496 u8 value[4] = { 0, 0, 0, 0 }; 1497 u32 data = 0; 1498 1499 switch (reg->match.type) { 1500 case V4L2_CHIP_MATCH_HOST: 1501 switch (reg->match.addr) { 1502 case 0: /* Cx231xx - internal registers */ 1503 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, 1504 (u16)reg->reg, value, 4); 1505 reg->val = value[0] | value[1] << 8 | 1506 value[2] << 16 | value[3] << 24; 1507 break; 1508 case 1: /* AFE - read byte */ 1509 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, 1510 (u16)reg->reg, 2, &data, 1); 1511 reg->val = le32_to_cpu(data & 0xff); 1512 break; 1513 case 14: /* AFE - read dword */ 1514 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, 1515 (u16)reg->reg, 2, &data, 4); 1516 reg->val = le32_to_cpu(data); 1517 break; 1518 case 2: /* Video Block - read byte */ 1519 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1520 (u16)reg->reg, 2, &data, 1); 1521 reg->val = le32_to_cpu(data & 0xff); 1522 break; 1523 case 24: /* Video Block - read dword */ 1524 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, 1525 (u16)reg->reg, 2, &data, 4); 1526 reg->val = le32_to_cpu(data); 1527 break; 1528 case 3: /* I2S block - read byte */ 1529 ret = cx231xx_read_i2c_data(dev, 1530 I2S_BLK_DEVICE_ADDRESS, 1531 (u16)reg->reg, 1, 1532 &data, 1); 1533 reg->val = le32_to_cpu(data & 0xff); 1534 break; 1535 case 34: /* I2S Block - read dword */ 1536 ret = 1537 cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, 1538 (u16)reg->reg, 1, &data, 4); 1539 reg->val = le32_to_cpu(data); 1540 break; 1541 } 1542 return ret < 0 ? ret : 0; 1543 1544 case V4L2_CHIP_MATCH_I2C_DRIVER: 1545 call_all(dev, core, g_register, reg); 1546 return 0; 1547 case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/ 1548 switch (reg->match.addr) { 1549 case 0: /* Cx231xx - internal registers */ 1550 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, 1551 (u16)reg->reg, value, 4); 1552 reg->val = value[0] | value[1] << 8 | 1553 value[2] << 16 | value[3] << 24; 1554 1555 break; 1556 case 0x600:/* AFE - read byte */ 1557 ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS, 1558 (u16)reg->reg, 2, 1559 &data, 1 , 0); 1560 reg->val = le32_to_cpu(data & 0xff); 1561 break; 1562 1563 case 0x880:/* Video Block - read byte */ 1564 if (reg->reg < 0x0b) { 1565 ret = cx231xx_read_i2c_master(dev, 1566 VID_BLK_I2C_ADDRESS, 1567 (u16)reg->reg, 2, 1568 &data, 1 , 0); 1569 reg->val = le32_to_cpu(data & 0xff); 1570 } else { 1571 ret = cx231xx_read_i2c_master(dev, 1572 VID_BLK_I2C_ADDRESS, 1573 (u16)reg->reg, 2, 1574 &data, 4 , 0); 1575 reg->val = le32_to_cpu(data); 1576 } 1577 break; 1578 case 0x980: 1579 ret = cx231xx_read_i2c_master(dev, 1580 I2S_BLK_DEVICE_ADDRESS, 1581 (u16)reg->reg, 1, 1582 &data, 1 , 0); 1583 reg->val = le32_to_cpu(data & 0xff); 1584 break; 1585 case 0x400: 1586 ret = 1587 cx231xx_read_i2c_master(dev, 0x40, 1588 (u16)reg->reg, 1, 1589 &data, 1 , 0); 1590 reg->val = le32_to_cpu(data & 0xff); 1591 break; 1592 case 0xc01: 1593 ret = 1594 cx231xx_read_i2c_master(dev, 0xc0, 1595 (u16)reg->reg, 2, 1596 &data, 38, 1); 1597 reg->val = le32_to_cpu(data); 1598 break; 1599 case 0x022: 1600 ret = 1601 cx231xx_read_i2c_master(dev, 0x02, 1602 (u16)reg->reg, 1, 1603 &data, 1, 2); 1604 reg->val = le32_to_cpu(data & 0xff); 1605 break; 1606 case 0x322: 1607 ret = cx231xx_read_i2c_master(dev, 1608 0x32, 1609 (u16)reg->reg, 1, 1610 &data, 4 , 2); 1611 reg->val = le32_to_cpu(data); 1612 break; 1613 case 0x342: 1614 ret = cx231xx_read_i2c_master(dev, 1615 0x34, 1616 (u16)reg->reg, 1, 1617 &data, 4 , 2); 1618 reg->val = le32_to_cpu(data); 1619 break; 1620 1621 default: 1622 cx231xx_info("no match device address!!\n"); 1623 break; 1624 } 1625 return ret < 0 ? ret : 0; 1626 /*return -EINVAL;*/ 1627 default: 1628 if (!v4l2_chip_match_host(®->match)) 1629 return -EINVAL; 1630 } 1631 1632 call_all(dev, core, g_register, reg); 1633 1634 return ret; 1635} 1636 1637static int vidioc_s_register(struct file *file, void *priv, 1638 struct v4l2_dbg_register *reg) 1639{ 1640 struct cx231xx_fh *fh = priv; 1641 struct cx231xx *dev = fh->dev; 1642 int ret = 0; 1643 __le64 buf; 1644 u32 value; 1645 u8 data[4] = { 0, 0, 0, 0 }; 1646 1647 buf = cpu_to_le64(reg->val); 1648 1649 switch (reg->match.type) { 1650 case V4L2_CHIP_MATCH_HOST: 1651 { 1652 value = (u32) buf & 0xffffffff; 1653 1654 switch (reg->match.addr) { 1655 case 0: /* cx231xx internal registers */ 1656 data[0] = (u8) value; 1657 data[1] = (u8) (value >> 8); 1658 data[2] = (u8) (value >> 16); 1659 data[3] = (u8) (value >> 24); 1660 ret = cx231xx_write_ctrl_reg(dev, 1661 VRT_SET_REGISTER, 1662 (u16)reg->reg, data, 1663 4); 1664 break; 1665 case 1: /* AFE - read byte */ 1666 ret = cx231xx_write_i2c_data(dev, 1667 AFE_DEVICE_ADDRESS, 1668 (u16)reg->reg, 2, 1669 value, 1); 1670 break; 1671 case 14: /* AFE - read dword */ 1672 ret = cx231xx_write_i2c_data(dev, 1673 AFE_DEVICE_ADDRESS, 1674 (u16)reg->reg, 2, 1675 value, 4); 1676 break; 1677 case 2: /* Video Block - read byte */ 1678 ret = 1679 cx231xx_write_i2c_data(dev, 1680 VID_BLK_I2C_ADDRESS, 1681 (u16)reg->reg, 2, 1682 value, 1); 1683 break; 1684 case 24: /* Video Block - read dword */ 1685 ret = 1686 cx231xx_write_i2c_data(dev, 1687 VID_BLK_I2C_ADDRESS, 1688 (u16)reg->reg, 2, 1689 value, 4); 1690 break; 1691 case 3: /* I2S block - read byte */ 1692 ret = 1693 cx231xx_write_i2c_data(dev, 1694 I2S_BLK_DEVICE_ADDRESS, 1695 (u16)reg->reg, 1, 1696 value, 1); 1697 break; 1698 case 34: /* I2S block - read dword */ 1699 ret = 1700 cx231xx_write_i2c_data(dev, 1701 I2S_BLK_DEVICE_ADDRESS, 1702 (u16)reg->reg, 1, 1703 value, 4); 1704 break; 1705 } 1706 } 1707 return ret < 0 ? ret : 0; 1708 case V4L2_CHIP_MATCH_I2C_ADDR: 1709 { 1710 value = (u32) buf & 0xffffffff; 1711 1712 switch (reg->match.addr) { 1713 case 0:/*cx231xx internal registers*/ 1714 data[0] = (u8) value; 1715 data[1] = (u8) (value >> 8); 1716 data[2] = (u8) (value >> 16); 1717 data[3] = (u8) (value >> 24); 1718 ret = cx231xx_write_ctrl_reg(dev, 1719 VRT_SET_REGISTER, 1720 (u16)reg->reg, data, 1721 4); 1722 break; 1723 case 0x600:/* AFE - read byte */ 1724 ret = cx231xx_write_i2c_master(dev, 1725 AFE_DEVICE_ADDRESS, 1726 (u16)reg->reg, 2, 1727 value, 1 , 0); 1728 break; 1729 1730 case 0x880:/* Video Block - read byte */ 1731 if (reg->reg < 0x0b) 1732 cx231xx_write_i2c_master(dev, 1733 VID_BLK_I2C_ADDRESS, 1734 (u16)reg->reg, 2, 1735 value, 1, 0); 1736 else 1737 cx231xx_write_i2c_master(dev, 1738 VID_BLK_I2C_ADDRESS, 1739 (u16)reg->reg, 2, 1740 value, 4, 0); 1741 break; 1742 case 0x980: 1743 ret = 1744 cx231xx_write_i2c_master(dev, 1745 I2S_BLK_DEVICE_ADDRESS, 1746 (u16)reg->reg, 1, 1747 value, 1, 0); 1748 break; 1749 case 0x400: 1750 ret = 1751 cx231xx_write_i2c_master(dev, 1752 0x40, 1753 (u16)reg->reg, 1, 1754 value, 1, 0); 1755 break; 1756 case 0xc01: 1757 ret = 1758 cx231xx_write_i2c_master(dev, 1759 0xc0, 1760 (u16)reg->reg, 1, 1761 value, 1, 1); 1762 break; 1763 1764 case 0x022: 1765 ret = 1766 cx231xx_write_i2c_master(dev, 1767 0x02, 1768 (u16)reg->reg, 1, 1769 value, 1, 2); 1770 case 0x322: 1771 ret = 1772 cx231xx_write_i2c_master(dev, 1773 0x32, 1774 (u16)reg->reg, 1, 1775 value, 4, 2); 1776 break; 1777 1778 case 0x342: 1779 ret = 1780 cx231xx_write_i2c_master(dev, 1781 0x34, 1782 (u16)reg->reg, 1, 1783 value, 4, 2); 1784 break; 1785 default: 1786 cx231xx_info("no match device address, " 1787 "the value is %x\n", reg->match.addr); 1788 break; 1789 1790 } 1791 1792 } 1793 default: 1794 break; 1795 } 1796 1797 call_all(dev, core, s_register, reg); 1798 1799 return ret; 1800} 1801#endif 1802 1803static int vidioc_cropcap(struct file *file, void *priv, 1804 struct v4l2_cropcap *cc) 1805{ 1806 struct cx231xx_fh *fh = priv; 1807 struct cx231xx *dev = fh->dev; 1808 1809 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1810 return -EINVAL; 1811 1812 cc->bounds.left = 0; 1813 cc->bounds.top = 0; 1814 cc->bounds.width = dev->width; 1815 cc->bounds.height = dev->height; 1816 cc->defrect = cc->bounds; 1817 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ 1818 cc->pixelaspect.denominator = 59; 1819 1820 return 0; 1821} 1822 1823static int vidioc_streamon(struct file *file, void *priv, 1824 enum v4l2_buf_type type) 1825{ 1826 struct cx231xx_fh *fh = priv; 1827 struct cx231xx *dev = fh->dev; 1828 int rc; 1829 1830 rc = check_dev(dev); 1831 if (rc < 0) 1832 return rc; 1833 1834 rc = res_get(fh); 1835 1836 if (likely(rc >= 0)) 1837 rc = videobuf_streamon(&fh->vb_vidq); 1838 1839 call_all(dev, video, s_stream, 1); 1840 1841 return rc; 1842} 1843 1844static int vidioc_streamoff(struct file *file, void *priv, 1845 enum v4l2_buf_type type) 1846{ 1847 struct cx231xx_fh *fh = priv; 1848 struct cx231xx *dev = fh->dev; 1849 int rc; 1850 1851 rc = check_dev(dev); 1852 if (rc < 0) 1853 return rc; 1854 1855 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 1856 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)) 1857 return -EINVAL; 1858 if (type != fh->type) 1859 return -EINVAL; 1860 1861 cx25840_call(dev, video, s_stream, 0); 1862 1863 videobuf_streamoff(&fh->vb_vidq); 1864 res_free(fh); 1865 1866 return 0; 1867} 1868 1869static int vidioc_querycap(struct file *file, void *priv, 1870 struct v4l2_capability *cap) 1871{ 1872 struct cx231xx_fh *fh = priv; 1873 struct cx231xx *dev = fh->dev; 1874 1875 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver)); 1876 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card)); 1877 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 1878 1879 cap->capabilities = V4L2_CAP_VBI_CAPTURE | 1880#if 0 1881 V4L2_CAP_SLICED_VBI_CAPTURE | 1882#endif 1883 V4L2_CAP_VIDEO_CAPTURE | 1884 V4L2_CAP_AUDIO | 1885 V4L2_CAP_READWRITE | 1886 V4L2_CAP_STREAMING; 1887 1888 if (dev->tuner_type != TUNER_ABSENT) 1889 cap->capabilities |= V4L2_CAP_TUNER; 1890 1891 return 0; 1892} 1893 1894static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1895 struct v4l2_fmtdesc *f) 1896{ 1897 if (unlikely(f->index >= ARRAY_SIZE(format))) 1898 return -EINVAL; 1899 1900 strlcpy(f->description, format[f->index].name, sizeof(f->description)); 1901 f->pixelformat = format[f->index].fourcc; 1902 1903 return 0; 1904} 1905 1906/* Sliced VBI ioctls */ 1907static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv, 1908 struct v4l2_format *f) 1909{ 1910 struct cx231xx_fh *fh = priv; 1911 struct cx231xx *dev = fh->dev; 1912 int rc; 1913 1914 rc = check_dev(dev); 1915 if (rc < 0) 1916 return rc; 1917 1918 f->fmt.sliced.service_set = 0; 1919 1920 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced); 1921 1922 if (f->fmt.sliced.service_set == 0) 1923 rc = -EINVAL; 1924 1925 return rc; 1926} 1927 1928static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv, 1929 struct v4l2_format *f) 1930{ 1931 struct cx231xx_fh *fh = priv; 1932 struct cx231xx *dev = fh->dev; 1933 int rc; 1934 1935 rc = check_dev(dev); 1936 if (rc < 0) 1937 return rc; 1938 1939 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced); 1940 1941 if (f->fmt.sliced.service_set == 0) 1942 return -EINVAL; 1943 1944 return 0; 1945} 1946 1947/* RAW VBI ioctls */ 1948 1949static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1950 struct v4l2_format *f) 1951{ 1952 struct cx231xx_fh *fh = priv; 1953 struct cx231xx *dev = fh->dev; 1954 f->fmt.vbi.sampling_rate = 6750000 * 4; 1955 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; 1956 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1957 f->fmt.vbi.offset = 0; 1958 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? 1959 PAL_VBI_START_LINE : NTSC_VBI_START_LINE; 1960 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? 1961 PAL_VBI_LINES : NTSC_VBI_LINES; 1962 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? 1963 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; 1964 f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; 1965 1966 return 0; 1967 1968} 1969 1970static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv, 1971 struct v4l2_format *f) 1972{ 1973 struct cx231xx_fh *fh = priv; 1974 struct cx231xx *dev = fh->dev; 1975 1976 if (dev->vbi_stream_on && !fh->stream_on) { 1977 cx231xx_errdev("%s device in use by another fh\n", __func__); 1978 return -EBUSY; 1979 } 1980 1981 f->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1982 f->fmt.vbi.sampling_rate = 6750000 * 4; 1983 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; 1984 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1985 f->fmt.vbi.offset = 0; 1986 f->fmt.vbi.flags = 0; 1987 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? 1988 PAL_VBI_START_LINE : NTSC_VBI_START_LINE; 1989 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? 1990 PAL_VBI_LINES : NTSC_VBI_LINES; 1991 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? 1992 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; 1993 f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; 1994 1995 return 0; 1996 1997} 1998 1999static int vidioc_reqbufs(struct file *file, void *priv, 2000 struct v4l2_requestbuffers *rb) 2001{ 2002 struct cx231xx_fh *fh = priv; 2003 struct cx231xx *dev = fh->dev; 2004 int rc; 2005 2006 rc = check_dev(dev); 2007 if (rc < 0) 2008 return rc; 2009 2010 return videobuf_reqbufs(&fh->vb_vidq, rb); 2011} 2012 2013static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b) 2014{ 2015 struct cx231xx_fh *fh = priv; 2016 struct cx231xx *dev = fh->dev; 2017 int rc; 2018 2019 rc = check_dev(dev); 2020 if (rc < 0) 2021 return rc; 2022 2023 return videobuf_querybuf(&fh->vb_vidq, b); 2024} 2025 2026static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2027{ 2028 struct cx231xx_fh *fh = priv; 2029 struct cx231xx *dev = fh->dev; 2030 int rc; 2031 2032 rc = check_dev(dev); 2033 if (rc < 0) 2034 return rc; 2035 2036 return videobuf_qbuf(&fh->vb_vidq, b); 2037} 2038 2039static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 2040{ 2041 struct cx231xx_fh *fh = priv; 2042 struct cx231xx *dev = fh->dev; 2043 int rc; 2044 2045 rc = check_dev(dev); 2046 if (rc < 0) 2047 return rc; 2048 2049 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK); 2050} 2051 2052/* ----------------------------------------------------------- */ 2053/* RADIO ESPECIFIC IOCTLS */ 2054/* ----------------------------------------------------------- */ 2055 2056static int radio_querycap(struct file *file, void *priv, 2057 struct v4l2_capability *cap) 2058{ 2059 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 2060 2061 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver)); 2062 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card)); 2063 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 2064 2065 cap->capabilities = V4L2_CAP_TUNER; 2066 return 0; 2067} 2068 2069static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 2070{ 2071 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 2072 2073 if (unlikely(t->index > 0)) 2074 return -EINVAL; 2075 2076 strcpy(t->name, "Radio"); 2077 t->type = V4L2_TUNER_RADIO; 2078 2079 call_all(dev, tuner, s_tuner, t); 2080 2081 return 0; 2082} 2083 2084static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i) 2085{ 2086 if (i->index != 0) 2087 return -EINVAL; 2088 strcpy(i->name, "Radio"); 2089 i->type = V4L2_INPUT_TYPE_TUNER; 2090 2091 return 0; 2092} 2093 2094static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 2095{ 2096 if (unlikely(a->index)) 2097 return -EINVAL; 2098 2099 strcpy(a->name, "Radio"); 2100 return 0; 2101} 2102 2103static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 2104{ 2105 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; 2106 2107 if (0 != t->index) 2108 return -EINVAL; 2109 2110 call_all(dev, tuner, s_tuner, t); 2111 2112 return 0; 2113} 2114 2115static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a) 2116{ 2117 return 0; 2118} 2119 2120static int radio_s_input(struct file *file, void *fh, unsigned int i) 2121{ 2122 return 0; 2123} 2124 2125static int radio_queryctrl(struct file *file, void *priv, 2126 struct v4l2_queryctrl *c) 2127{ 2128 int i; 2129 2130 if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1) 2131 return -EINVAL; 2132 if (c->id == V4L2_CID_AUDIO_MUTE) { 2133 for (i = 0; i < CX231XX_CTLS; i++) { 2134 if (cx231xx_ctls[i].v.id == c->id) 2135 break; 2136 } 2137 if (i == CX231XX_CTLS) 2138 return -EINVAL; 2139 *c = cx231xx_ctls[i].v; 2140 } else 2141 *c = no_ctl; 2142 return 0; 2143} 2144 2145/* 2146 * cx231xx_v4l2_open() 2147 * inits the device and starts isoc transfer 2148 */ 2149static int cx231xx_v4l2_open(struct file *filp) 2150{ 2151 int errCode = 0, radio = 0; 2152 struct video_device *vdev = video_devdata(filp); 2153 struct cx231xx *dev = video_drvdata(filp); 2154 struct cx231xx_fh *fh; 2155 enum v4l2_buf_type fh_type = 0; 2156 2157 switch (vdev->vfl_type) { 2158 case VFL_TYPE_GRABBER: 2159 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 2160 break; 2161 case VFL_TYPE_VBI: 2162 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 2163 break; 2164 case VFL_TYPE_RADIO: 2165 radio = 1; 2166 break; 2167 } 2168 2169 cx231xx_videodbg("open dev=%s type=%s users=%d\n", 2170 video_device_node_name(vdev), v4l2_type_names[fh_type], 2171 dev->users); 2172 2173#if 0 2174 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); 2175 if (errCode < 0) { 2176 cx231xx_errdev 2177 ("Device locked on digital mode. Can't open analog\n"); 2178 return -EBUSY; 2179 } 2180#endif 2181 2182 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL); 2183 if (!fh) { 2184 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n"); 2185 return -ENOMEM; 2186 } 2187 fh->dev = dev; 2188 fh->radio = radio; 2189 fh->type = fh_type; 2190 filp->private_data = fh; 2191 2192 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 2193 dev->width = norm_maxw(dev); 2194 dev->height = norm_maxh(dev); 2195 2196 /* Power up in Analog TV mode */ 2197 if (dev->board.external_av) 2198 cx231xx_set_power_mode(dev, 2199 POLARIS_AVMODE_ENXTERNAL_AV); 2200 else 2201 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV); 2202 2203#if 0 2204 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); 2205#endif 2206 2207 /* set video alternate setting */ 2208 cx231xx_set_video_alternate(dev); 2209 2210 /* Needed, since GPIO might have disabled power of 2211 some i2c device */ 2212 cx231xx_config_i2c(dev); 2213 2214 /* device needs to be initialized before isoc transfer */ 2215 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input; 2216 2217 } 2218 if (fh->radio) { 2219 cx231xx_videodbg("video_open: setting radio device\n"); 2220 2221 /* cx231xx_start_radio(dev); */ 2222 2223 call_all(dev, tuner, s_radio); 2224 } 2225 2226 dev->users++; 2227 2228 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 2229 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops, 2230 NULL, &dev->video_mode.slock, 2231 fh->type, V4L2_FIELD_INTERLACED, 2232 sizeof(struct cx231xx_buffer), 2233 fh, &dev->lock); 2234 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 2235 /* Set the required alternate setting VBI interface works in 2236 Bulk mode only */ 2237 cx231xx_set_alt_setting(dev, INDEX_VANC, 0); 2238 2239 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops, 2240 NULL, &dev->vbi_mode.slock, 2241 fh->type, V4L2_FIELD_SEQ_TB, 2242 sizeof(struct cx231xx_buffer), 2243 fh, &dev->lock); 2244 } 2245 2246 return errCode; 2247} 2248 2249/* 2250 * cx231xx_realease_resources() 2251 * unregisters the v4l2,i2c and usb devices 2252 * called when the device gets disconected or at module unload 2253*/ 2254void cx231xx_release_analog_resources(struct cx231xx *dev) 2255{ 2256 2257 /*FIXME: I2C IR should be disconnected */ 2258 2259 if (dev->radio_dev) { 2260 if (video_is_registered(dev->radio_dev)) 2261 video_unregister_device(dev->radio_dev); 2262 else 2263 video_device_release(dev->radio_dev); 2264 dev->radio_dev = NULL; 2265 } 2266 if (dev->vbi_dev) { 2267 cx231xx_info("V4L2 device %s deregistered\n", 2268 video_device_node_name(dev->vbi_dev)); 2269 if (video_is_registered(dev->vbi_dev)) 2270 video_unregister_device(dev->vbi_dev); 2271 else 2272 video_device_release(dev->vbi_dev); 2273 dev->vbi_dev = NULL; 2274 } 2275 if (dev->vdev) { 2276 cx231xx_info("V4L2 device %s deregistered\n", 2277 video_device_node_name(dev->vdev)); 2278 2279 if (dev->board.has_417) 2280 cx231xx_417_unregister(dev); 2281 2282 if (video_is_registered(dev->vdev)) 2283 video_unregister_device(dev->vdev); 2284 else 2285 video_device_release(dev->vdev); 2286 dev->vdev = NULL; 2287 } 2288} 2289 2290/* 2291 * cx231xx_v4l2_close() 2292 * stops streaming and deallocates all resources allocated by the v4l2 2293 * calls and ioctls 2294 */ 2295static int cx231xx_v4l2_close(struct file *filp) 2296{ 2297 struct cx231xx_fh *fh = filp->private_data; 2298 struct cx231xx *dev = fh->dev; 2299 2300 cx231xx_videodbg("users=%d\n", dev->users); 2301 2302 cx231xx_videodbg("users=%d\n", dev->users); 2303 if (res_check(fh)) 2304 res_free(fh); 2305 2306 /* 2307 * To workaround error number=-71 on EP0 for VideoGrabber, 2308 * need exclude following. 2309 * FIXME: It is probably safe to remove most of these, as we're 2310 * now avoiding the alternate setting for INDEX_VANC 2311 */ 2312 if (!dev->board.no_alt_vanc) 2313 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 2314 videobuf_stop(&fh->vb_vidq); 2315 videobuf_mmap_free(&fh->vb_vidq); 2316 2317 /* the device is already disconnect, 2318 free the remaining resources */ 2319 if (dev->state & DEV_DISCONNECTED) { 2320 if (atomic_read(&dev->devlist_count) > 0) { 2321 cx231xx_release_resources(dev); 2322 fh->dev = NULL; 2323 return 0; 2324 } 2325 return 0; 2326 } 2327 2328 /* do this before setting alternate! */ 2329 cx231xx_uninit_vbi_isoc(dev); 2330 2331 /* set alternate 0 */ 2332 if (!dev->vbi_or_sliced_cc_mode) 2333 cx231xx_set_alt_setting(dev, INDEX_VANC, 0); 2334 else 2335 cx231xx_set_alt_setting(dev, INDEX_HANC, 0); 2336 2337 kfree(fh); 2338 dev->users--; 2339 wake_up_interruptible_nr(&dev->open, 1); 2340 return 0; 2341 } 2342 2343 dev->users--; 2344 if (!dev->users) { 2345 videobuf_stop(&fh->vb_vidq); 2346 videobuf_mmap_free(&fh->vb_vidq); 2347 2348 /* the device is already disconnect, 2349 free the remaining resources */ 2350 if (dev->state & DEV_DISCONNECTED) { 2351 cx231xx_release_resources(dev); 2352 fh->dev = NULL; 2353 return 0; 2354 } 2355 2356 /* Save some power by putting tuner to sleep */ 2357 call_all(dev, core, s_power, 0); 2358 2359 /* do this before setting alternate! */ 2360 if (dev->USE_ISO) 2361 cx231xx_uninit_isoc(dev); 2362 else 2363 cx231xx_uninit_bulk(dev); 2364 cx231xx_set_mode(dev, CX231XX_SUSPEND); 2365 2366 /* set alternate 0 */ 2367 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0); 2368 } 2369 kfree(fh); 2370 wake_up_interruptible_nr(&dev->open, 1); 2371 return 0; 2372} 2373 2374/* 2375 * cx231xx_v4l2_read() 2376 * will allocate buffers when called for the first time 2377 */ 2378static ssize_t 2379cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count, 2380 loff_t *pos) 2381{ 2382 struct cx231xx_fh *fh = filp->private_data; 2383 struct cx231xx *dev = fh->dev; 2384 int rc; 2385 2386 rc = check_dev(dev); 2387 if (rc < 0) 2388 return rc; 2389 2390 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) || 2391 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) { 2392 rc = res_get(fh); 2393 2394 if (unlikely(rc < 0)) 2395 return rc; 2396 2397 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, 2398 filp->f_flags & O_NONBLOCK); 2399 } 2400 return 0; 2401} 2402 2403/* 2404 * cx231xx_v4l2_poll() 2405 * will allocate buffers when called for the first time 2406 */ 2407static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait) 2408{ 2409 struct cx231xx_fh *fh = filp->private_data; 2410 struct cx231xx *dev = fh->dev; 2411 int rc; 2412 2413 rc = check_dev(dev); 2414 if (rc < 0) 2415 return rc; 2416 2417 rc = res_get(fh); 2418 2419 if (unlikely(rc < 0)) 2420 return POLLERR; 2421 2422 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) || 2423 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) 2424 return videobuf_poll_stream(filp, &fh->vb_vidq, wait); 2425 else 2426 return POLLERR; 2427} 2428 2429/* 2430 * cx231xx_v4l2_mmap() 2431 */ 2432static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 2433{ 2434 struct cx231xx_fh *fh = filp->private_data; 2435 struct cx231xx *dev = fh->dev; 2436 int rc; 2437 2438 rc = check_dev(dev); 2439 if (rc < 0) 2440 return rc; 2441 2442 rc = res_get(fh); 2443 2444 if (unlikely(rc < 0)) 2445 return rc; 2446 2447 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); 2448 2449 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", 2450 (unsigned long)vma->vm_start, 2451 (unsigned long)vma->vm_end - 2452 (unsigned long)vma->vm_start, rc); 2453 2454 return rc; 2455} 2456 2457static const struct v4l2_file_operations cx231xx_v4l_fops = { 2458 .owner = THIS_MODULE, 2459 .open = cx231xx_v4l2_open, 2460 .release = cx231xx_v4l2_close, 2461 .read = cx231xx_v4l2_read, 2462 .poll = cx231xx_v4l2_poll, 2463 .mmap = cx231xx_v4l2_mmap, 2464 .unlocked_ioctl = video_ioctl2, 2465}; 2466 2467static const struct v4l2_ioctl_ops video_ioctl_ops = { 2468 .vidioc_querycap = vidioc_querycap, 2469 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 2470 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 2471 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 2472 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 2473 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 2474 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap, 2475 .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap, 2476 .vidioc_g_audio = vidioc_g_audio, 2477 .vidioc_s_audio = vidioc_s_audio, 2478 .vidioc_cropcap = vidioc_cropcap, 2479 .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap, 2480 .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, 2481 .vidioc_reqbufs = vidioc_reqbufs, 2482 .vidioc_querybuf = vidioc_querybuf, 2483 .vidioc_qbuf = vidioc_qbuf, 2484 .vidioc_dqbuf = vidioc_dqbuf, 2485 .vidioc_s_std = vidioc_s_std, 2486 .vidioc_g_std = vidioc_g_std, 2487 .vidioc_enum_input = vidioc_enum_input, 2488 .vidioc_g_input = vidioc_g_input, 2489 .vidioc_s_input = vidioc_s_input, 2490 .vidioc_queryctrl = vidioc_queryctrl, 2491 .vidioc_g_ctrl = vidioc_g_ctrl, 2492 .vidioc_s_ctrl = vidioc_s_ctrl, 2493 .vidioc_streamon = vidioc_streamon, 2494 .vidioc_streamoff = vidioc_streamoff, 2495 .vidioc_g_tuner = vidioc_g_tuner, 2496 .vidioc_s_tuner = vidioc_s_tuner, 2497 .vidioc_g_frequency = vidioc_g_frequency, 2498 .vidioc_s_frequency = vidioc_s_frequency, 2499#ifdef CONFIG_VIDEO_ADV_DEBUG 2500 .vidioc_g_register = vidioc_g_register, 2501 .vidioc_s_register = vidioc_s_register, 2502#endif 2503}; 2504 2505static struct video_device cx231xx_vbi_template; 2506 2507static const struct video_device cx231xx_video_template = { 2508 .fops = &cx231xx_v4l_fops, 2509 .release = video_device_release, 2510 .ioctl_ops = &video_ioctl_ops, 2511 .tvnorms = V4L2_STD_ALL, 2512 .current_norm = V4L2_STD_PAL, 2513}; 2514 2515static const struct v4l2_file_operations radio_fops = { 2516 .owner = THIS_MODULE, 2517 .open = cx231xx_v4l2_open, 2518 .release = cx231xx_v4l2_close, 2519 .ioctl = video_ioctl2, 2520}; 2521 2522static const struct v4l2_ioctl_ops radio_ioctl_ops = { 2523 .vidioc_querycap = radio_querycap, 2524 .vidioc_g_tuner = radio_g_tuner, 2525 .vidioc_enum_input = radio_enum_input, 2526 .vidioc_g_audio = radio_g_audio, 2527 .vidioc_s_tuner = radio_s_tuner, 2528 .vidioc_s_audio = radio_s_audio, 2529 .vidioc_s_input = radio_s_input, 2530 .vidioc_queryctrl = radio_queryctrl, 2531 .vidioc_g_ctrl = vidioc_g_ctrl, 2532 .vidioc_s_ctrl = vidioc_s_ctrl, 2533 .vidioc_g_frequency = vidioc_g_frequency, 2534 .vidioc_s_frequency = vidioc_s_frequency, 2535#ifdef CONFIG_VIDEO_ADV_DEBUG 2536 .vidioc_g_register = vidioc_g_register, 2537 .vidioc_s_register = vidioc_s_register, 2538#endif 2539}; 2540 2541static struct video_device cx231xx_radio_template = { 2542 .name = "cx231xx-radio", 2543 .fops = &radio_fops, 2544 .ioctl_ops = &radio_ioctl_ops, 2545}; 2546 2547/******************************** usb interface ******************************/ 2548 2549static struct video_device *cx231xx_vdev_init(struct cx231xx *dev, 2550 const struct video_device 2551 *template, const char *type_name) 2552{ 2553 struct video_device *vfd; 2554 2555 vfd = video_device_alloc(); 2556 if (NULL == vfd) 2557 return NULL; 2558 2559 *vfd = *template; 2560 vfd->v4l2_dev = &dev->v4l2_dev; 2561 vfd->release = video_device_release; 2562 vfd->debug = video_debug; 2563 vfd->lock = &dev->lock; 2564 2565 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name); 2566 2567 video_set_drvdata(vfd, dev); 2568 return vfd; 2569} 2570 2571int cx231xx_register_analog_devices(struct cx231xx *dev) 2572{ 2573 int ret; 2574 2575 cx231xx_info("%s: v4l2 driver version %s\n", 2576 dev->name, CX231XX_VERSION); 2577 2578 /* set default norm */ 2579 /*dev->norm = cx231xx_video_template.current_norm; */ 2580 dev->width = norm_maxw(dev); 2581 dev->height = norm_maxh(dev); 2582 dev->interlaced = 0; 2583 2584 /* Analog specific initialization */ 2585 dev->format = &format[0]; 2586 2587 /* Set the initial input */ 2588 video_mux(dev, dev->video_input); 2589 2590 /* Audio defaults */ 2591 dev->mute = 1; 2592 dev->volume = 0x1f; 2593 2594 /* enable vbi capturing */ 2595 /* write code here... */ 2596 2597 /* allocate and fill video video_device struct */ 2598 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video"); 2599 if (!dev->vdev) { 2600 cx231xx_errdev("cannot allocate video_device.\n"); 2601 return -ENODEV; 2602 } 2603 2604 /* register v4l2 video video_device */ 2605 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, 2606 video_nr[dev->devno]); 2607 if (ret) { 2608 cx231xx_errdev("unable to register video device (error=%i).\n", 2609 ret); 2610 return ret; 2611 } 2612 2613 cx231xx_info("%s/0: registered device %s [v4l2]\n", 2614 dev->name, video_device_node_name(dev->vdev)); 2615 2616 /* Initialize VBI template */ 2617 memcpy(&cx231xx_vbi_template, &cx231xx_video_template, 2618 sizeof(cx231xx_vbi_template)); 2619 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi"); 2620 2621 /* Allocate and fill vbi video_device struct */ 2622 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi"); 2623 2624 /* register v4l2 vbi video_device */ 2625 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 2626 vbi_nr[dev->devno]); 2627 if (ret < 0) { 2628 cx231xx_errdev("unable to register vbi device\n"); 2629 return ret; 2630 } 2631 2632 cx231xx_info("%s/0: registered device %s\n", 2633 dev->name, video_device_node_name(dev->vbi_dev)); 2634 2635 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) { 2636 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template, 2637 "radio"); 2638 if (!dev->radio_dev) { 2639 cx231xx_errdev("cannot allocate video_device.\n"); 2640 return -ENODEV; 2641 } 2642 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, 2643 radio_nr[dev->devno]); 2644 if (ret < 0) { 2645 cx231xx_errdev("can't register radio device\n"); 2646 return ret; 2647 } 2648 cx231xx_info("Registered radio device as %s\n", 2649 video_device_node_name(dev->radio_dev)); 2650 } 2651 2652 cx231xx_info("V4L2 device registered as %s and %s\n", 2653 video_device_node_name(dev->vdev), 2654 video_device_node_name(dev->vbi_dev)); 2655 2656 return 0; 2657} 2658