1 /* 2 * Driver for the Conexant CX23885 PCIe bridge 3 * 4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22 #include <linux/init.h> 23 #include <linux/list.h> 24 #include <linux/module.h> 25 #include <linux/moduleparam.h> 26 #include <linux/kmod.h> 27 #include <linux/kernel.h> 28 #include <linux/slab.h> 29 #include <linux/interrupt.h> 30 #include <linux/delay.h> 31 #include <linux/kthread.h> 32 #include <asm/div64.h> 33 34 #include "cx23885.h" 35 #include <media/v4l2-common.h> 36 #include <media/v4l2-ioctl.h> 37 #include "cx23885-ioctl.h" 38 #include "tuner-xc2028.h" 39 40 #include <media/cx25840.h> 41 42 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards"); 43 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>"); 44 MODULE_LICENSE("GPL"); 45 46 /* ------------------------------------------------------------------ */ 47 48 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 49 static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 50 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 51 52 module_param_array(video_nr, int, NULL, 0444); 53 module_param_array(vbi_nr, int, NULL, 0444); 54 module_param_array(radio_nr, int, NULL, 0444); 55 56 MODULE_PARM_DESC(video_nr, "video device numbers"); 57 MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 58 MODULE_PARM_DESC(radio_nr, "radio device numbers"); 59 60 static unsigned int video_debug; 61 module_param(video_debug, int, 0644); 62 MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 63 64 static unsigned int irq_debug; 65 module_param(irq_debug, int, 0644); 66 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]"); 67 68 static unsigned int vid_limit = 16; 69 module_param(vid_limit, int, 0644); 70 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); 71 72 #define dprintk(level, fmt, arg...)\ 73 do { if (video_debug >= level)\ 74 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\ 75 } while (0) 76 77 /* ------------------------------------------------------------------- */ 78 /* static data */ 79 80 #define FORMAT_FLAGS_PACKED 0x01 81 #if 0 82 static struct cx23885_fmt formats[] = { 83 { 84 .name = "8 bpp, gray", 85 .fourcc = V4L2_PIX_FMT_GREY, 86 .depth = 8, 87 .flags = FORMAT_FLAGS_PACKED, 88 }, { 89 .name = "15 bpp RGB, le", 90 .fourcc = V4L2_PIX_FMT_RGB555, 91 .depth = 16, 92 .flags = FORMAT_FLAGS_PACKED, 93 }, { 94 .name = "15 bpp RGB, be", 95 .fourcc = V4L2_PIX_FMT_RGB555X, 96 .depth = 16, 97 .flags = FORMAT_FLAGS_PACKED, 98 }, { 99 .name = "16 bpp RGB, le", 100 .fourcc = V4L2_PIX_FMT_RGB565, 101 .depth = 16, 102 .flags = FORMAT_FLAGS_PACKED, 103 }, { 104 .name = "16 bpp RGB, be", 105 .fourcc = V4L2_PIX_FMT_RGB565X, 106 .depth = 16, 107 .flags = FORMAT_FLAGS_PACKED, 108 }, { 109 .name = "24 bpp RGB, le", 110 .fourcc = V4L2_PIX_FMT_BGR24, 111 .depth = 24, 112 .flags = FORMAT_FLAGS_PACKED, 113 }, { 114 .name = "32 bpp RGB, le", 115 .fourcc = V4L2_PIX_FMT_BGR32, 116 .depth = 32, 117 .flags = FORMAT_FLAGS_PACKED, 118 }, { 119 .name = "32 bpp RGB, be", 120 .fourcc = V4L2_PIX_FMT_RGB32, 121 .depth = 32, 122 .flags = FORMAT_FLAGS_PACKED, 123 }, { 124 .name = "4:2:2, packed, YUYV", 125 .fourcc = V4L2_PIX_FMT_YUYV, 126 .depth = 16, 127 .flags = FORMAT_FLAGS_PACKED, 128 }, { 129 .name = "4:2:2, packed, UYVY", 130 .fourcc = V4L2_PIX_FMT_UYVY, 131 .depth = 16, 132 .flags = FORMAT_FLAGS_PACKED, 133 }, 134 }; 135 #else 136 static struct cx23885_fmt formats[] = { 137 { 138 #if 0 139 .name = "4:2:2, packed, UYVY", 140 .fourcc = V4L2_PIX_FMT_UYVY, 141 .depth = 16, 142 .flags = FORMAT_FLAGS_PACKED, 143 }, { 144 #endif 145 .name = "4:2:2, packed, YUYV", 146 .fourcc = V4L2_PIX_FMT_YUYV, 147 .depth = 16, 148 .flags = FORMAT_FLAGS_PACKED, 149 } 150 }; 151 #endif 152 153 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc) 154 { 155 unsigned int i; 156 157 for (i = 0; i < ARRAY_SIZE(formats); i++) 158 if (formats[i].fourcc == fourcc) 159 return formats+i; 160 161 printk(KERN_ERR "%s(%c%c%c%c) NOT FOUND\n", __func__, 162 (fourcc & 0xff), 163 ((fourcc >> 8) & 0xff), 164 ((fourcc >> 16) & 0xff), 165 ((fourcc >> 24) & 0xff) 166 ); 167 return NULL; 168 } 169 170 /* ------------------------------------------------------------------- */ 171 172 static const struct v4l2_queryctrl no_ctl = { 173 .name = "42", 174 .flags = V4L2_CTRL_FLAG_DISABLED, 175 }; 176 177 static struct cx23885_ctrl cx23885_ctls[] = { 178 /* --- video --- */ 179 { 180 .v = { 181 .id = V4L2_CID_BRIGHTNESS, 182 .name = "Brightness", 183 .minimum = 0x00, 184 .maximum = 0xff, 185 .step = 1, 186 .default_value = 0x7f, 187 .type = V4L2_CTRL_TYPE_INTEGER, 188 }, 189 .off = 128, 190 .reg = LUMA_CTRL, 191 .mask = 0x00ff, 192 .shift = 0, 193 }, { 194 .v = { 195 .id = V4L2_CID_CONTRAST, 196 .name = "Contrast", 197 .minimum = 0, 198 .maximum = 0x7f, 199 .step = 1, 200 .default_value = 0x3f, 201 .type = V4L2_CTRL_TYPE_INTEGER, 202 }, 203 .off = 0, 204 .reg = LUMA_CTRL, 205 .mask = 0xff00, 206 .shift = 8, 207 }, { 208 .v = { 209 .id = V4L2_CID_HUE, 210 .name = "Hue", 211 .minimum = -127, 212 .maximum = 128, 213 .step = 1, 214 .default_value = 0x0, 215 .type = V4L2_CTRL_TYPE_INTEGER, 216 }, 217 .off = 128, 218 .reg = CHROMA_CTRL, 219 .mask = 0xff0000, 220 .shift = 16, 221 }, { 222 /* strictly, this only describes only U saturation. 223 * V saturation is handled specially through code. 224 */ 225 .v = { 226 .id = V4L2_CID_SATURATION, 227 .name = "Saturation", 228 .minimum = 0, 229 .maximum = 0x7f, 230 .step = 1, 231 .default_value = 0x3f, 232 .type = V4L2_CTRL_TYPE_INTEGER, 233 }, 234 .off = 0, 235 .reg = CHROMA_CTRL, 236 .mask = 0x00ff, 237 .shift = 0, 238 }, { 239 /* --- audio --- */ 240 .v = { 241 .id = V4L2_CID_AUDIO_MUTE, 242 .name = "Mute", 243 .minimum = 0, 244 .maximum = 1, 245 .default_value = 1, 246 .type = V4L2_CTRL_TYPE_BOOLEAN, 247 }, 248 .reg = PATH1_CTL1, 249 .mask = (0x1f << 24), 250 .shift = 24, 251 }, { 252 .v = { 253 .id = V4L2_CID_AUDIO_VOLUME, 254 .name = "Volume", 255 .minimum = 0, 256 .maximum = 65535, 257 .step = 65535 / 100, 258 .default_value = 65535, 259 .type = V4L2_CTRL_TYPE_INTEGER, 260 }, 261 .reg = PATH1_VOL_CTL, 262 .mask = 0xff, 263 .shift = 0, 264 } 265 }; 266 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls); 267 268 /* Must be sorted from low to high control ID! */ 269 static const u32 cx23885_user_ctrls[] = { 270 V4L2_CID_USER_CLASS, 271 V4L2_CID_BRIGHTNESS, 272 V4L2_CID_CONTRAST, 273 V4L2_CID_SATURATION, 274 V4L2_CID_HUE, 275 V4L2_CID_AUDIO_VOLUME, 276 V4L2_CID_AUDIO_MUTE, 277 0 278 }; 279 280 static const u32 *ctrl_classes[] = { 281 cx23885_user_ctrls, 282 NULL 283 }; 284 285 void cx23885_video_wakeup(struct cx23885_dev *dev, 286 struct cx23885_dmaqueue *q, u32 count) 287 { 288 struct cx23885_buffer *buf; 289 int bc; 290 291 for (bc = 0;; bc++) { 292 if (list_empty(&q->active)) 293 break; 294 buf = list_entry(q->active.next, 295 struct cx23885_buffer, vb.queue); 296 297 /* count comes from the hw and is is 16bit wide -- 298 * this trick handles wrap-arounds correctly for 299 * up to 32767 buffers in flight... */ 300 if ((s16) (count - buf->count) < 0) 301 break; 302 303 do_gettimeofday(&buf->vb.ts); 304 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i, 305 count, buf->count); 306 buf->vb.state = VIDEOBUF_DONE; 307 list_del(&buf->vb.queue); 308 wake_up(&buf->vb.done); 309 } 310 if (list_empty(&q->active)) 311 del_timer(&q->timeout); 312 else 313 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 314 if (bc != 1) 315 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n", 316 __func__, bc); 317 } 318 319 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm) 320 { 321 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", 322 __func__, 323 (unsigned int)norm, 324 v4l2_norm_to_name(norm)); 325 326 dev->tvnorm = norm; 327 328 call_all(dev, core, s_std, norm); 329 330 return 0; 331 } 332 333 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev, 334 struct pci_dev *pci, 335 struct video_device *template, 336 char *type) 337 { 338 struct video_device *vfd; 339 dprintk(1, "%s()\n", __func__); 340 341 vfd = video_device_alloc(); 342 if (NULL == vfd) 343 return NULL; 344 *vfd = *template; 345 vfd->v4l2_dev = &dev->v4l2_dev; 346 vfd->release = video_device_release; 347 snprintf(vfd->name, sizeof(vfd->name), "%s (%s)", 348 cx23885_boards[dev->board].name, type); 349 video_set_drvdata(vfd, dev); 350 return vfd; 351 } 352 353 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl) 354 { 355 int i; 356 357 if (qctrl->id < V4L2_CID_BASE || 358 qctrl->id >= V4L2_CID_LASTP1) 359 return -EINVAL; 360 for (i = 0; i < CX23885_CTLS; i++) 361 if (cx23885_ctls[i].v.id == qctrl->id) 362 break; 363 if (i == CX23885_CTLS) { 364 *qctrl = no_ctl; 365 return 0; 366 } 367 *qctrl = cx23885_ctls[i].v; 368 return 0; 369 } 370 371 /* ------------------------------------------------------------------- */ 372 /* resource management */ 373 374 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh, 375 unsigned int bit) 376 { 377 dprintk(1, "%s()\n", __func__); 378 if (fh->resources & bit) 379 /* have it already allocated */ 380 return 1; 381 382 /* is it free? */ 383 mutex_lock(&dev->lock); 384 if (dev->resources & bit) { 385 /* no, someone else uses it */ 386 mutex_unlock(&dev->lock); 387 return 0; 388 } 389 /* it's free, grab it */ 390 fh->resources |= bit; 391 dev->resources |= bit; 392 dprintk(1, "res: get %d\n", bit); 393 mutex_unlock(&dev->lock); 394 return 1; 395 } 396 397 static int res_check(struct cx23885_fh *fh, unsigned int bit) 398 { 399 return fh->resources & bit; 400 } 401 402 static int res_locked(struct cx23885_dev *dev, unsigned int bit) 403 { 404 return dev->resources & bit; 405 } 406 407 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh, 408 unsigned int bits) 409 { 410 BUG_ON((fh->resources & bits) != bits); 411 dprintk(1, "%s()\n", __func__); 412 413 mutex_lock(&dev->lock); 414 fh->resources &= ~bits; 415 dev->resources &= ~bits; 416 dprintk(1, "res: put %d\n", bits); 417 mutex_unlock(&dev->lock); 418 } 419 420 static int cx23885_flatiron_write(struct cx23885_dev *dev, u8 reg, u8 data) 421 { 422 /* 8 bit registers, 8 bit values */ 423 u8 buf[] = { reg, data }; 424 425 struct i2c_msg msg = { .addr = 0x98 >> 1, 426 .flags = 0, .buf = buf, .len = 2 }; 427 428 return i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg, 1); 429 } 430 431 static u8 cx23885_flatiron_read(struct cx23885_dev *dev, u8 reg) 432 { 433 /* 8 bit registers, 8 bit values */ 434 int ret; 435 u8 b0[] = { reg }; 436 u8 b1[] = { 0 }; 437 438 struct i2c_msg msg[] = { 439 { .addr = 0x98 >> 1, .flags = 0, .buf = b0, .len = 1 }, 440 { .addr = 0x98 >> 1, .flags = I2C_M_RD, .buf = b1, .len = 1 } 441 }; 442 443 ret = i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg[0], 2); 444 if (ret != 2) 445 printk(KERN_ERR "%s() error\n", __func__); 446 447 return b1[0]; 448 } 449 450 static void cx23885_flatiron_dump(struct cx23885_dev *dev) 451 { 452 int i; 453 dprintk(1, "Flatiron dump\n"); 454 for (i = 0; i < 0x24; i++) { 455 dprintk(1, "FI[%02x] = %02x\n", i, 456 cx23885_flatiron_read(dev, i)); 457 } 458 } 459 460 static int cx23885_flatiron_mux(struct cx23885_dev *dev, int input) 461 { 462 u8 val; 463 dprintk(1, "%s(input = %d)\n", __func__, input); 464 465 if (input == 1) 466 val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) & ~FLD_CH_SEL; 467 else if (input == 2) 468 val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) | FLD_CH_SEL; 469 else 470 return -EINVAL; 471 472 val |= 0x20; /* Enable clock to delta-sigma and dec filter */ 473 474 cx23885_flatiron_write(dev, CH_PWR_CTRL1, val); 475 476 /* Wake up */ 477 cx23885_flatiron_write(dev, CH_PWR_CTRL2, 0); 478 479 if (video_debug) 480 cx23885_flatiron_dump(dev); 481 482 return 0; 483 } 484 485 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) 486 { 487 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n", 488 __func__, 489 input, INPUT(input)->vmux, 490 INPUT(input)->gpio0, INPUT(input)->gpio1, 491 INPUT(input)->gpio2, INPUT(input)->gpio3); 492 dev->input = input; 493 494 if (dev->board == CX23885_BOARD_MYGICA_X8506 || 495 dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2 || 496 dev->board == CX23885_BOARD_MYGICA_X8507) { 497 /* Select Analog TV */ 498 if (INPUT(input)->type == CX23885_VMUX_TELEVISION) 499 cx23885_gpio_clear(dev, GPIO_0); 500 } 501 502 /* Tell the internal A/V decoder */ 503 v4l2_subdev_call(dev->sd_cx25840, video, s_routing, 504 INPUT(input)->vmux, 0, 0); 505 506 if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) || 507 (dev->board == CX23885_BOARD_MPX885) || 508 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) || 509 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) || 510 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) || 511 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) || 512 (dev->board == CX23885_BOARD_MYGICA_X8507)) { 513 /* Configure audio routing */ 514 v4l2_subdev_call(dev->sd_cx25840, audio, s_routing, 515 INPUT(input)->amux, 0, 0); 516 517 if (INPUT(input)->amux == CX25840_AUDIO7) 518 cx23885_flatiron_mux(dev, 1); 519 else if (INPUT(input)->amux == CX25840_AUDIO6) 520 cx23885_flatiron_mux(dev, 2); 521 } 522 523 return 0; 524 } 525 526 static int cx23885_audio_mux(struct cx23885_dev *dev, unsigned int input) 527 { 528 dprintk(1, "%s(input=%d)\n", __func__, input); 529 530 /* The baseband video core of the cx23885 has two audio inputs. 531 * LR1 and LR2. In almost every single case so far only HVR1xxx 532 * cards we've only ever supported LR1. Time to support LR2, 533 * which is available via the optional white breakout header on 534 * the board. 535 * We'll use a could of existing enums in the card struct to allow 536 * devs to specify which baseband input they need, or just default 537 * to what we've always used. 538 */ 539 if (INPUT(input)->amux == CX25840_AUDIO7) 540 cx23885_flatiron_mux(dev, 1); 541 else if (INPUT(input)->amux == CX25840_AUDIO6) 542 cx23885_flatiron_mux(dev, 2); 543 else { 544 /* Not specifically defined, assume the default. */ 545 cx23885_flatiron_mux(dev, 1); 546 } 547 548 return 0; 549 } 550 551 /* ------------------------------------------------------------------ */ 552 static int cx23885_start_video_dma(struct cx23885_dev *dev, 553 struct cx23885_dmaqueue *q, 554 struct cx23885_buffer *buf) 555 { 556 dprintk(1, "%s()\n", __func__); 557 558 /* Stop the dma/fifo before we tamper with it's risc programs */ 559 cx_clear(VID_A_DMA_CTL, 0x11); 560 561 /* setup fifo + format */ 562 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01], 563 buf->bpl, buf->risc.dma); 564 565 /* reset counter */ 566 cx_write(VID_A_GPCNT_CTL, 3); 567 q->count = 1; 568 569 /* enable irq */ 570 cx23885_irq_add_enable(dev, 0x01); 571 cx_set(VID_A_INT_MSK, 0x000011); 572 573 /* start dma */ 574 cx_set(DEV_CNTRL2, (1<<5)); 575 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */ 576 577 return 0; 578 } 579 580 581 static int cx23885_restart_video_queue(struct cx23885_dev *dev, 582 struct cx23885_dmaqueue *q) 583 { 584 struct cx23885_buffer *buf, *prev; 585 struct list_head *item; 586 dprintk(1, "%s()\n", __func__); 587 588 if (!list_empty(&q->active)) { 589 buf = list_entry(q->active.next, struct cx23885_buffer, 590 vb.queue); 591 dprintk(2, "restart_queue [%p/%d]: restart dma\n", 592 buf, buf->vb.i); 593 cx23885_start_video_dma(dev, q, buf); 594 list_for_each(item, &q->active) { 595 buf = list_entry(item, struct cx23885_buffer, 596 vb.queue); 597 buf->count = q->count++; 598 } 599 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 600 return 0; 601 } 602 603 prev = NULL; 604 for (;;) { 605 if (list_empty(&q->queued)) 606 return 0; 607 buf = list_entry(q->queued.next, struct cx23885_buffer, 608 vb.queue); 609 if (NULL == prev) { 610 list_move_tail(&buf->vb.queue, &q->active); 611 cx23885_start_video_dma(dev, q, buf); 612 buf->vb.state = VIDEOBUF_ACTIVE; 613 buf->count = q->count++; 614 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 615 dprintk(2, "[%p/%d] restart_queue - first active\n", 616 buf, buf->vb.i); 617 618 } else if (prev->vb.width == buf->vb.width && 619 prev->vb.height == buf->vb.height && 620 prev->fmt == buf->fmt) { 621 list_move_tail(&buf->vb.queue, &q->active); 622 buf->vb.state = VIDEOBUF_ACTIVE; 623 buf->count = q->count++; 624 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 625 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */ 626 dprintk(2, "[%p/%d] restart_queue - move to active\n", 627 buf, buf->vb.i); 628 } else { 629 return 0; 630 } 631 prev = buf; 632 } 633 } 634 635 static int buffer_setup(struct videobuf_queue *q, unsigned int *count, 636 unsigned int *size) 637 { 638 struct cx23885_fh *fh = q->priv_data; 639 640 *size = fh->fmt->depth*fh->width*fh->height >> 3; 641 if (0 == *count) 642 *count = 32; 643 if (*size * *count > vid_limit * 1024 * 1024) 644 *count = (vid_limit * 1024 * 1024) / *size; 645 return 0; 646 } 647 648 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, 649 enum v4l2_field field) 650 { 651 struct cx23885_fh *fh = q->priv_data; 652 struct cx23885_dev *dev = fh->dev; 653 struct cx23885_buffer *buf = 654 container_of(vb, struct cx23885_buffer, vb); 655 int rc, init_buffer = 0; 656 u32 line0_offset, line1_offset; 657 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); 658 int field_tff; 659 660 BUG_ON(NULL == fh->fmt); 661 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) || 662 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm)) 663 return -EINVAL; 664 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; 665 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 666 return -EINVAL; 667 668 if (buf->fmt != fh->fmt || 669 buf->vb.width != fh->width || 670 buf->vb.height != fh->height || 671 buf->vb.field != field) { 672 buf->fmt = fh->fmt; 673 buf->vb.width = fh->width; 674 buf->vb.height = fh->height; 675 buf->vb.field = field; 676 init_buffer = 1; 677 } 678 679 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 680 init_buffer = 1; 681 rc = videobuf_iolock(q, &buf->vb, NULL); 682 if (0 != rc) 683 goto fail; 684 } 685 686 if (init_buffer) { 687 buf->bpl = buf->vb.width * buf->fmt->depth >> 3; 688 switch (buf->vb.field) { 689 case V4L2_FIELD_TOP: 690 cx23885_risc_buffer(dev->pci, &buf->risc, 691 dma->sglist, 0, UNSET, 692 buf->bpl, 0, buf->vb.height); 693 break; 694 case V4L2_FIELD_BOTTOM: 695 cx23885_risc_buffer(dev->pci, &buf->risc, 696 dma->sglist, UNSET, 0, 697 buf->bpl, 0, buf->vb.height); 698 break; 699 case V4L2_FIELD_INTERLACED: 700 if (dev->tvnorm & V4L2_STD_NTSC) 701 /* NTSC or */ 702 field_tff = 1; 703 else 704 field_tff = 0; 705 706 if (cx23885_boards[dev->board].force_bff) 707 /* PAL / SECAM OR 888 in NTSC MODE */ 708 field_tff = 0; 709 710 if (field_tff) { 711 /* cx25840 transmits NTSC bottom field first */ 712 dprintk(1, "%s() Creating TFF/NTSC risc\n", 713 __func__); 714 line0_offset = buf->bpl; 715 line1_offset = 0; 716 } else { 717 /* All other formats are top field first */ 718 dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n", 719 __func__); 720 line0_offset = 0; 721 line1_offset = buf->bpl; 722 } 723 cx23885_risc_buffer(dev->pci, &buf->risc, 724 dma->sglist, line0_offset, 725 line1_offset, 726 buf->bpl, buf->bpl, 727 buf->vb.height >> 1); 728 break; 729 case V4L2_FIELD_SEQ_TB: 730 cx23885_risc_buffer(dev->pci, &buf->risc, 731 dma->sglist, 732 0, buf->bpl * (buf->vb.height >> 1), 733 buf->bpl, 0, 734 buf->vb.height >> 1); 735 break; 736 case V4L2_FIELD_SEQ_BT: 737 cx23885_risc_buffer(dev->pci, &buf->risc, 738 dma->sglist, 739 buf->bpl * (buf->vb.height >> 1), 0, 740 buf->bpl, 0, 741 buf->vb.height >> 1); 742 break; 743 default: 744 BUG(); 745 } 746 } 747 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n", 748 buf, buf->vb.i, 749 fh->width, fh->height, fh->fmt->depth, fh->fmt->name, 750 (unsigned long)buf->risc.dma); 751 752 buf->vb.state = VIDEOBUF_PREPARED; 753 return 0; 754 755 fail: 756 cx23885_free_buffer(q, buf); 757 return rc; 758 } 759 760 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 761 { 762 struct cx23885_buffer *buf = container_of(vb, 763 struct cx23885_buffer, vb); 764 struct cx23885_buffer *prev; 765 struct cx23885_fh *fh = vq->priv_data; 766 struct cx23885_dev *dev = fh->dev; 767 struct cx23885_dmaqueue *q = &dev->vidq; 768 769 /* add jump to stopper */ 770 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); 771 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); 772 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ 773 774 if (!list_empty(&q->queued)) { 775 list_add_tail(&buf->vb.queue, &q->queued); 776 buf->vb.state = VIDEOBUF_QUEUED; 777 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", 778 buf, buf->vb.i); 779 780 } else if (list_empty(&q->active)) { 781 list_add_tail(&buf->vb.queue, &q->active); 782 cx23885_start_video_dma(dev, q, buf); 783 buf->vb.state = VIDEOBUF_ACTIVE; 784 buf->count = q->count++; 785 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 786 dprintk(2, "[%p/%d] buffer_queue - first active\n", 787 buf, buf->vb.i); 788 789 } else { 790 prev = list_entry(q->active.prev, struct cx23885_buffer, 791 vb.queue); 792 if (prev->vb.width == buf->vb.width && 793 prev->vb.height == buf->vb.height && 794 prev->fmt == buf->fmt) { 795 list_add_tail(&buf->vb.queue, &q->active); 796 buf->vb.state = VIDEOBUF_ACTIVE; 797 buf->count = q->count++; 798 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 799 /* 64 bit bits 63-32 */ 800 prev->risc.jmp[2] = cpu_to_le32(0); 801 dprintk(2, "[%p/%d] buffer_queue - append to active\n", 802 buf, buf->vb.i); 803 804 } else { 805 list_add_tail(&buf->vb.queue, &q->queued); 806 buf->vb.state = VIDEOBUF_QUEUED; 807 dprintk(2, "[%p/%d] buffer_queue - first queued\n", 808 buf, buf->vb.i); 809 } 810 } 811 } 812 813 static void buffer_release(struct videobuf_queue *q, 814 struct videobuf_buffer *vb) 815 { 816 struct cx23885_buffer *buf = container_of(vb, 817 struct cx23885_buffer, vb); 818 819 cx23885_free_buffer(q, buf); 820 } 821 822 static struct videobuf_queue_ops cx23885_video_qops = { 823 .buf_setup = buffer_setup, 824 .buf_prepare = buffer_prepare, 825 .buf_queue = buffer_queue, 826 .buf_release = buffer_release, 827 }; 828 829 static struct videobuf_queue *get_queue(struct cx23885_fh *fh) 830 { 831 switch (fh->type) { 832 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 833 return &fh->vidq; 834 case V4L2_BUF_TYPE_VBI_CAPTURE: 835 return &fh->vbiq; 836 default: 837 BUG(); 838 return NULL; 839 } 840 } 841 842 static int get_resource(struct cx23885_fh *fh) 843 { 844 switch (fh->type) { 845 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 846 return RESOURCE_VIDEO; 847 case V4L2_BUF_TYPE_VBI_CAPTURE: 848 return RESOURCE_VBI; 849 default: 850 BUG(); 851 return 0; 852 } 853 } 854 855 static int video_open(struct file *file) 856 { 857 struct video_device *vdev = video_devdata(file); 858 struct cx23885_dev *dev = video_drvdata(file); 859 struct cx23885_fh *fh; 860 enum v4l2_buf_type type = 0; 861 int radio = 0; 862 863 switch (vdev->vfl_type) { 864 case VFL_TYPE_GRABBER: 865 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 866 break; 867 case VFL_TYPE_VBI: 868 type = V4L2_BUF_TYPE_VBI_CAPTURE; 869 break; 870 case VFL_TYPE_RADIO: 871 radio = 1; 872 break; 873 } 874 875 dprintk(1, "open dev=%s radio=%d type=%s\n", 876 video_device_node_name(vdev), radio, v4l2_type_names[type]); 877 878 /* allocate + initialize per filehandle data */ 879 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 880 if (NULL == fh) 881 return -ENOMEM; 882 883 file->private_data = fh; 884 fh->dev = dev; 885 fh->radio = radio; 886 fh->type = type; 887 fh->width = 320; 888 fh->height = 240; 889 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV); 890 891 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops, 892 &dev->pci->dev, &dev->slock, 893 V4L2_BUF_TYPE_VIDEO_CAPTURE, 894 V4L2_FIELD_INTERLACED, 895 sizeof(struct cx23885_buffer), 896 fh, NULL); 897 898 videobuf_queue_sg_init(&fh->vbiq, &cx23885_vbi_qops, 899 &dev->pci->dev, &dev->slock, 900 V4L2_BUF_TYPE_VBI_CAPTURE, 901 V4L2_FIELD_SEQ_TB, 902 sizeof(struct cx23885_buffer), 903 fh, NULL); 904 905 906 dprintk(1, "post videobuf_queue_init()\n"); 907 908 return 0; 909 } 910 911 static ssize_t video_read(struct file *file, char __user *data, 912 size_t count, loff_t *ppos) 913 { 914 struct cx23885_fh *fh = file->private_data; 915 916 switch (fh->type) { 917 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 918 if (res_locked(fh->dev, RESOURCE_VIDEO)) 919 return -EBUSY; 920 return videobuf_read_one(&fh->vidq, data, count, ppos, 921 file->f_flags & O_NONBLOCK); 922 case V4L2_BUF_TYPE_VBI_CAPTURE: 923 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 924 return -EBUSY; 925 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1, 926 file->f_flags & O_NONBLOCK); 927 default: 928 BUG(); 929 return 0; 930 } 931 } 932 933 static unsigned int video_poll(struct file *file, 934 struct poll_table_struct *wait) 935 { 936 struct cx23885_fh *fh = file->private_data; 937 struct cx23885_buffer *buf; 938 unsigned int rc = POLLERR; 939 940 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 941 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 942 return POLLERR; 943 return videobuf_poll_stream(file, &fh->vbiq, wait); 944 } 945 946 mutex_lock(&fh->vidq.vb_lock); 947 if (res_check(fh, RESOURCE_VIDEO)) { 948 /* streaming capture */ 949 if (list_empty(&fh->vidq.stream)) 950 goto done; 951 buf = list_entry(fh->vidq.stream.next, 952 struct cx23885_buffer, vb.stream); 953 } else { 954 /* read() capture */ 955 buf = (struct cx23885_buffer *)fh->vidq.read_buf; 956 if (NULL == buf) 957 goto done; 958 } 959 poll_wait(file, &buf->vb.done, wait); 960 if (buf->vb.state == VIDEOBUF_DONE || 961 buf->vb.state == VIDEOBUF_ERROR) 962 rc = POLLIN|POLLRDNORM; 963 else 964 rc = 0; 965 done: 966 mutex_unlock(&fh->vidq.vb_lock); 967 return rc; 968 } 969 970 static int video_release(struct file *file) 971 { 972 struct cx23885_fh *fh = file->private_data; 973 struct cx23885_dev *dev = fh->dev; 974 975 /* turn off overlay */ 976 if (res_check(fh, RESOURCE_OVERLAY)) { 977 /* FIXME */ 978 res_free(dev, fh, RESOURCE_OVERLAY); 979 } 980 981 /* stop video capture */ 982 if (res_check(fh, RESOURCE_VIDEO)) { 983 videobuf_queue_cancel(&fh->vidq); 984 res_free(dev, fh, RESOURCE_VIDEO); 985 } 986 if (fh->vidq.read_buf) { 987 buffer_release(&fh->vidq, fh->vidq.read_buf); 988 kfree(fh->vidq.read_buf); 989 } 990 991 /* stop vbi capture */ 992 if (res_check(fh, RESOURCE_VBI)) { 993 if (fh->vbiq.streaming) 994 videobuf_streamoff(&fh->vbiq); 995 if (fh->vbiq.reading) 996 videobuf_read_stop(&fh->vbiq); 997 res_free(dev, fh, RESOURCE_VBI); 998 } 999 1000 videobuf_mmap_free(&fh->vidq); 1001 videobuf_mmap_free(&fh->vbiq); 1002 1003 file->private_data = NULL; 1004 kfree(fh); 1005 1006 /* We are not putting the tuner to sleep here on exit, because 1007 * we want to use the mpeg encoder in another session to capture 1008 * tuner video. Closing this will result in no video to the encoder. 1009 */ 1010 1011 return 0; 1012 } 1013 1014 static int video_mmap(struct file *file, struct vm_area_struct *vma) 1015 { 1016 struct cx23885_fh *fh = file->private_data; 1017 1018 return videobuf_mmap_mapper(get_queue(fh), vma); 1019 } 1020 1021 /* ------------------------------------------------------------------ */ 1022 /* VIDEO CTRL IOCTLS */ 1023 1024 int cx23885_get_control(struct cx23885_dev *dev, 1025 struct v4l2_control *ctl) 1026 { 1027 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__); 1028 call_all(dev, core, g_ctrl, ctl); 1029 return 0; 1030 } 1031 1032 int cx23885_set_control(struct cx23885_dev *dev, 1033 struct v4l2_control *ctl) 1034 { 1035 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)\n", __func__); 1036 call_all(dev, core, s_ctrl, ctl); 1037 1038 return 0; 1039 } 1040 1041 static void init_controls(struct cx23885_dev *dev) 1042 { 1043 struct v4l2_control ctrl; 1044 int i; 1045 1046 for (i = 0; i < CX23885_CTLS; i++) { 1047 ctrl.id = cx23885_ctls[i].v.id; 1048 ctrl.value = cx23885_ctls[i].v.default_value; 1049 1050 cx23885_set_control(dev, &ctrl); 1051 } 1052 } 1053 1054 /* ------------------------------------------------------------------ */ 1055 /* VIDEO IOCTLS */ 1056 1057 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1058 struct v4l2_format *f) 1059 { 1060 struct cx23885_fh *fh = priv; 1061 1062 f->fmt.pix.width = fh->width; 1063 f->fmt.pix.height = fh->height; 1064 f->fmt.pix.field = fh->vidq.field; 1065 f->fmt.pix.pixelformat = fh->fmt->fourcc; 1066 f->fmt.pix.bytesperline = 1067 (f->fmt.pix.width * fh->fmt->depth) >> 3; 1068 f->fmt.pix.sizeimage = 1069 f->fmt.pix.height * f->fmt.pix.bytesperline; 1070 1071 return 0; 1072 } 1073 1074 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1075 struct v4l2_format *f) 1076 { 1077 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1078 struct cx23885_fmt *fmt; 1079 enum v4l2_field field; 1080 unsigned int maxw, maxh; 1081 1082 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1083 if (NULL == fmt) 1084 return -EINVAL; 1085 1086 field = f->fmt.pix.field; 1087 maxw = norm_maxw(dev->tvnorm); 1088 maxh = norm_maxh(dev->tvnorm); 1089 1090 if (V4L2_FIELD_ANY == field) { 1091 field = (f->fmt.pix.height > maxh/2) 1092 ? V4L2_FIELD_INTERLACED 1093 : V4L2_FIELD_BOTTOM; 1094 } 1095 1096 switch (field) { 1097 case V4L2_FIELD_TOP: 1098 case V4L2_FIELD_BOTTOM: 1099 maxh = maxh / 2; 1100 break; 1101 case V4L2_FIELD_INTERLACED: 1102 break; 1103 default: 1104 return -EINVAL; 1105 } 1106 1107 f->fmt.pix.field = field; 1108 v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2, 1109 &f->fmt.pix.height, 32, maxh, 0, 0); 1110 f->fmt.pix.bytesperline = 1111 (f->fmt.pix.width * fmt->depth) >> 3; 1112 f->fmt.pix.sizeimage = 1113 f->fmt.pix.height * f->fmt.pix.bytesperline; 1114 1115 return 0; 1116 } 1117 1118 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1119 struct v4l2_format *f) 1120 { 1121 struct cx23885_fh *fh = priv; 1122 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1123 struct v4l2_mbus_framefmt mbus_fmt; 1124 int err; 1125 1126 dprintk(2, "%s()\n", __func__); 1127 err = vidioc_try_fmt_vid_cap(file, priv, f); 1128 1129 if (0 != err) 1130 return err; 1131 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1132 fh->width = f->fmt.pix.width; 1133 fh->height = f->fmt.pix.height; 1134 fh->vidq.field = f->fmt.pix.field; 1135 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, 1136 fh->width, fh->height, fh->vidq.field); 1137 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED); 1138 call_all(dev, video, s_mbus_fmt, &mbus_fmt); 1139 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt); 1140 return 0; 1141 } 1142 1143 static int vidioc_querycap(struct file *file, void *priv, 1144 struct v4l2_capability *cap) 1145 { 1146 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1147 1148 strcpy(cap->driver, "cx23885"); 1149 strlcpy(cap->card, cx23885_boards[dev->board].name, 1150 sizeof(cap->card)); 1151 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); 1152 cap->capabilities = 1153 V4L2_CAP_VIDEO_CAPTURE | 1154 V4L2_CAP_READWRITE | 1155 V4L2_CAP_STREAMING | 1156 V4L2_CAP_VBI_CAPTURE; 1157 if (UNSET != dev->tuner_type) 1158 cap->capabilities |= V4L2_CAP_TUNER; 1159 return 0; 1160 } 1161 1162 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1163 struct v4l2_fmtdesc *f) 1164 { 1165 if (unlikely(f->index >= ARRAY_SIZE(formats))) 1166 return -EINVAL; 1167 1168 strlcpy(f->description, formats[f->index].name, 1169 sizeof(f->description)); 1170 f->pixelformat = formats[f->index].fourcc; 1171 1172 return 0; 1173 } 1174 1175 static int vidioc_reqbufs(struct file *file, void *priv, 1176 struct v4l2_requestbuffers *p) 1177 { 1178 struct cx23885_fh *fh = priv; 1179 return videobuf_reqbufs(get_queue(fh), p); 1180 } 1181 1182 static int vidioc_querybuf(struct file *file, void *priv, 1183 struct v4l2_buffer *p) 1184 { 1185 struct cx23885_fh *fh = priv; 1186 return videobuf_querybuf(get_queue(fh), p); 1187 } 1188 1189 static int vidioc_qbuf(struct file *file, void *priv, 1190 struct v4l2_buffer *p) 1191 { 1192 struct cx23885_fh *fh = priv; 1193 return videobuf_qbuf(get_queue(fh), p); 1194 } 1195 1196 static int vidioc_dqbuf(struct file *file, void *priv, 1197 struct v4l2_buffer *p) 1198 { 1199 struct cx23885_fh *fh = priv; 1200 return videobuf_dqbuf(get_queue(fh), p, 1201 file->f_flags & O_NONBLOCK); 1202 } 1203 1204 static int vidioc_streamon(struct file *file, void *priv, 1205 enum v4l2_buf_type i) 1206 { 1207 struct cx23885_fh *fh = priv; 1208 struct cx23885_dev *dev = fh->dev; 1209 dprintk(1, "%s()\n", __func__); 1210 1211 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 1212 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)) 1213 return -EINVAL; 1214 if (unlikely(i != fh->type)) 1215 return -EINVAL; 1216 1217 if (unlikely(!res_get(dev, fh, get_resource(fh)))) 1218 return -EBUSY; 1219 1220 /* Don't start VBI streaming unless vida streaming 1221 * has already started. 1222 */ 1223 if ((fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) && 1224 ((cx_read(VID_A_DMA_CTL) & 0x11) == 0)) 1225 return -EINVAL; 1226 1227 return videobuf_streamon(get_queue(fh)); 1228 } 1229 1230 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) 1231 { 1232 struct cx23885_fh *fh = priv; 1233 struct cx23885_dev *dev = fh->dev; 1234 int err, res; 1235 dprintk(1, "%s()\n", __func__); 1236 1237 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 1238 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)) 1239 return -EINVAL; 1240 if (i != fh->type) 1241 return -EINVAL; 1242 1243 res = get_resource(fh); 1244 err = videobuf_streamoff(get_queue(fh)); 1245 if (err < 0) 1246 return err; 1247 res_free(dev, fh, res); 1248 return 0; 1249 } 1250 1251 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) 1252 { 1253 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1254 dprintk(1, "%s()\n", __func__); 1255 1256 call_all(dev, core, g_std, id); 1257 1258 return 0; 1259 } 1260 1261 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms) 1262 { 1263 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1264 dprintk(1, "%s()\n", __func__); 1265 1266 mutex_lock(&dev->lock); 1267 cx23885_set_tvnorm(dev, *tvnorms); 1268 mutex_unlock(&dev->lock); 1269 1270 return 0; 1271 } 1272 1273 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i) 1274 { 1275 static const char *iname[] = { 1276 [CX23885_VMUX_COMPOSITE1] = "Composite1", 1277 [CX23885_VMUX_COMPOSITE2] = "Composite2", 1278 [CX23885_VMUX_COMPOSITE3] = "Composite3", 1279 [CX23885_VMUX_COMPOSITE4] = "Composite4", 1280 [CX23885_VMUX_SVIDEO] = "S-Video", 1281 [CX23885_VMUX_COMPONENT] = "Component", 1282 [CX23885_VMUX_TELEVISION] = "Television", 1283 [CX23885_VMUX_CABLE] = "Cable TV", 1284 [CX23885_VMUX_DVB] = "DVB", 1285 [CX23885_VMUX_DEBUG] = "for debug only", 1286 }; 1287 unsigned int n; 1288 dprintk(1, "%s()\n", __func__); 1289 1290 n = i->index; 1291 if (n >= MAX_CX23885_INPUT) 1292 return -EINVAL; 1293 1294 if (0 == INPUT(n)->type) 1295 return -EINVAL; 1296 1297 i->index = n; 1298 i->type = V4L2_INPUT_TYPE_CAMERA; 1299 strcpy(i->name, iname[INPUT(n)->type]); 1300 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) || 1301 (CX23885_VMUX_CABLE == INPUT(n)->type)) { 1302 i->type = V4L2_INPUT_TYPE_TUNER; 1303 i->std = CX23885_NORMS; 1304 } 1305 1306 /* Two selectable audio inputs for non-tv inputs */ 1307 if (INPUT(n)->type != CX23885_VMUX_TELEVISION) 1308 i->audioset = 0x3; 1309 1310 if (dev->input == n) { 1311 /* enum'd input matches our configured input. 1312 * Ask the video decoder to process the call 1313 * and give it an oppertunity to update the 1314 * status field. 1315 */ 1316 call_all(dev, video, g_input_status, &i->status); 1317 } 1318 1319 return 0; 1320 } 1321 1322 static int vidioc_enum_input(struct file *file, void *priv, 1323 struct v4l2_input *i) 1324 { 1325 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1326 dprintk(1, "%s()\n", __func__); 1327 return cx23885_enum_input(dev, i); 1328 } 1329 1330 int cx23885_get_input(struct file *file, void *priv, unsigned int *i) 1331 { 1332 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1333 1334 *i = dev->input; 1335 dprintk(1, "%s() returns %d\n", __func__, *i); 1336 return 0; 1337 } 1338 1339 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1340 { 1341 return cx23885_get_input(file, priv, i); 1342 } 1343 1344 int cx23885_set_input(struct file *file, void *priv, unsigned int i) 1345 { 1346 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1347 1348 dprintk(1, "%s(%d)\n", __func__, i); 1349 1350 if (i >= MAX_CX23885_INPUT) { 1351 dprintk(1, "%s() -EINVAL\n", __func__); 1352 return -EINVAL; 1353 } 1354 1355 if (INPUT(i)->type == 0) 1356 return -EINVAL; 1357 1358 mutex_lock(&dev->lock); 1359 cx23885_video_mux(dev, i); 1360 1361 /* By default establish the default audio input for the card also */ 1362 /* Caller is free to use VIDIOC_S_AUDIO to override afterwards */ 1363 cx23885_audio_mux(dev, i); 1364 mutex_unlock(&dev->lock); 1365 return 0; 1366 } 1367 1368 static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 1369 { 1370 return cx23885_set_input(file, priv, i); 1371 } 1372 1373 static int vidioc_log_status(struct file *file, void *priv) 1374 { 1375 struct cx23885_fh *fh = priv; 1376 struct cx23885_dev *dev = fh->dev; 1377 1378 printk(KERN_INFO 1379 "%s/0: ============ START LOG STATUS ============\n", 1380 dev->name); 1381 call_all(dev, core, log_status); 1382 printk(KERN_INFO 1383 "%s/0: ============= END LOG STATUS =============\n", 1384 dev->name); 1385 return 0; 1386 } 1387 1388 static int cx23885_query_audinput(struct file *file, void *priv, 1389 struct v4l2_audio *i) 1390 { 1391 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1392 static const char *iname[] = { 1393 [0] = "Baseband L/R 1", 1394 [1] = "Baseband L/R 2", 1395 }; 1396 unsigned int n; 1397 dprintk(1, "%s()\n", __func__); 1398 1399 n = i->index; 1400 if (n >= 2) 1401 return -EINVAL; 1402 1403 memset(i, 0, sizeof(*i)); 1404 i->index = n; 1405 strcpy(i->name, iname[n]); 1406 i->capability = V4L2_AUDCAP_STEREO; 1407 i->mode = V4L2_AUDMODE_AVL; 1408 return 0; 1409 1410 } 1411 1412 static int vidioc_enum_audinput(struct file *file, void *priv, 1413 struct v4l2_audio *i) 1414 { 1415 return cx23885_query_audinput(file, priv, i); 1416 } 1417 1418 static int vidioc_g_audinput(struct file *file, void *priv, 1419 struct v4l2_audio *i) 1420 { 1421 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1422 1423 i->index = dev->audinput; 1424 dprintk(1, "%s(input=%d)\n", __func__, i->index); 1425 1426 return cx23885_query_audinput(file, priv, i); 1427 } 1428 1429 static int vidioc_s_audinput(struct file *file, void *priv, 1430 const struct v4l2_audio *i) 1431 { 1432 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1433 if (i->index >= 2) 1434 return -EINVAL; 1435 1436 dprintk(1, "%s(%d)\n", __func__, i->index); 1437 1438 dev->audinput = i->index; 1439 1440 /* Skip the audio defaults from the cards struct, caller wants 1441 * directly touch the audio mux hardware. */ 1442 cx23885_flatiron_mux(dev, dev->audinput + 1); 1443 return 0; 1444 } 1445 1446 static int vidioc_queryctrl(struct file *file, void *priv, 1447 struct v4l2_queryctrl *qctrl) 1448 { 1449 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); 1450 if (unlikely(qctrl->id == 0)) 1451 return -EINVAL; 1452 return cx23885_ctrl_query(qctrl); 1453 } 1454 1455 static int vidioc_g_ctrl(struct file *file, void *priv, 1456 struct v4l2_control *ctl) 1457 { 1458 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1459 1460 return cx23885_get_control(dev, ctl); 1461 } 1462 1463 static int vidioc_s_ctrl(struct file *file, void *priv, 1464 struct v4l2_control *ctl) 1465 { 1466 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1467 1468 return cx23885_set_control(dev, ctl); 1469 } 1470 1471 static int vidioc_g_tuner(struct file *file, void *priv, 1472 struct v4l2_tuner *t) 1473 { 1474 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1475 1476 if (unlikely(UNSET == dev->tuner_type)) 1477 return -EINVAL; 1478 if (0 != t->index) 1479 return -EINVAL; 1480 1481 strcpy(t->name, "Television"); 1482 1483 call_all(dev, tuner, g_tuner, t); 1484 return 0; 1485 } 1486 1487 static int vidioc_s_tuner(struct file *file, void *priv, 1488 struct v4l2_tuner *t) 1489 { 1490 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1491 1492 if (UNSET == dev->tuner_type) 1493 return -EINVAL; 1494 if (0 != t->index) 1495 return -EINVAL; 1496 /* Update the A/V core */ 1497 call_all(dev, tuner, s_tuner, t); 1498 1499 return 0; 1500 } 1501 1502 static int vidioc_g_frequency(struct file *file, void *priv, 1503 struct v4l2_frequency *f) 1504 { 1505 struct cx23885_fh *fh = priv; 1506 struct cx23885_dev *dev = fh->dev; 1507 1508 if (unlikely(UNSET == dev->tuner_type)) 1509 return -EINVAL; 1510 1511 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */ 1512 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 1513 f->frequency = dev->freq; 1514 1515 call_all(dev, tuner, g_frequency, f); 1516 1517 return 0; 1518 } 1519 1520 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f) 1521 { 1522 struct v4l2_control ctrl; 1523 1524 if (unlikely(UNSET == dev->tuner_type)) 1525 return -EINVAL; 1526 if (unlikely(f->tuner != 0)) 1527 return -EINVAL; 1528 1529 mutex_lock(&dev->lock); 1530 dev->freq = f->frequency; 1531 1532 /* I need to mute audio here */ 1533 ctrl.id = V4L2_CID_AUDIO_MUTE; 1534 ctrl.value = 1; 1535 cx23885_set_control(dev, &ctrl); 1536 1537 call_all(dev, tuner, s_frequency, f); 1538 1539 /* When changing channels it is required to reset TVAUDIO */ 1540 msleep(100); 1541 1542 /* I need to unmute audio here */ 1543 ctrl.value = 0; 1544 cx23885_set_control(dev, &ctrl); 1545 1546 mutex_unlock(&dev->lock); 1547 1548 return 0; 1549 } 1550 1551 static int cx23885_set_freq_via_ops(struct cx23885_dev *dev, 1552 struct v4l2_frequency *f) 1553 { 1554 struct v4l2_control ctrl; 1555 struct videobuf_dvb_frontend *vfe; 1556 struct dvb_frontend *fe; 1557 1558 struct analog_parameters params = { 1559 .mode = V4L2_TUNER_ANALOG_TV, 1560 .audmode = V4L2_TUNER_MODE_STEREO, 1561 .std = dev->tvnorm, 1562 .frequency = f->frequency 1563 }; 1564 1565 mutex_lock(&dev->lock); 1566 dev->freq = f->frequency; 1567 1568 /* I need to mute audio here */ 1569 ctrl.id = V4L2_CID_AUDIO_MUTE; 1570 ctrl.value = 1; 1571 cx23885_set_control(dev, &ctrl); 1572 1573 /* If HVR1850 */ 1574 dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__, 1575 params.frequency, f->tuner, params.std); 1576 1577 vfe = videobuf_dvb_get_frontend(&dev->ts2.frontends, 1); 1578 if (!vfe) { 1579 mutex_unlock(&dev->lock); 1580 return -EINVAL; 1581 } 1582 1583 fe = vfe->dvb.frontend; 1584 1585 if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) || 1586 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) || 1587 (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111)) 1588 fe = &dev->ts1.analog_fe; 1589 1590 if (fe && fe->ops.tuner_ops.set_analog_params) { 1591 call_all(dev, core, s_std, dev->tvnorm); 1592 fe->ops.tuner_ops.set_analog_params(fe, ¶ms); 1593 } 1594 else 1595 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__); 1596 1597 /* When changing channels it is required to reset TVAUDIO */ 1598 msleep(100); 1599 1600 /* I need to unmute audio here */ 1601 ctrl.value = 0; 1602 cx23885_set_control(dev, &ctrl); 1603 1604 mutex_unlock(&dev->lock); 1605 1606 return 0; 1607 } 1608 1609 int cx23885_set_frequency(struct file *file, void *priv, 1610 struct v4l2_frequency *f) 1611 { 1612 struct cx23885_fh *fh = priv; 1613 struct cx23885_dev *dev = fh->dev; 1614 int ret; 1615 1616 switch (dev->board) { 1617 case CX23885_BOARD_HAUPPAUGE_HVR1255: 1618 case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: 1619 case CX23885_BOARD_HAUPPAUGE_HVR1850: 1620 ret = cx23885_set_freq_via_ops(dev, f); 1621 break; 1622 default: 1623 ret = cx23885_set_freq(dev, f); 1624 } 1625 1626 return ret; 1627 } 1628 1629 static int vidioc_s_frequency(struct file *file, void *priv, 1630 struct v4l2_frequency *f) 1631 { 1632 return cx23885_set_frequency(file, priv, f); 1633 } 1634 1635 /* ----------------------------------------------------------- */ 1636 1637 static void cx23885_vid_timeout(unsigned long data) 1638 { 1639 struct cx23885_dev *dev = (struct cx23885_dev *)data; 1640 struct cx23885_dmaqueue *q = &dev->vidq; 1641 struct cx23885_buffer *buf; 1642 unsigned long flags; 1643 1644 spin_lock_irqsave(&dev->slock, flags); 1645 while (!list_empty(&q->active)) { 1646 buf = list_entry(q->active.next, 1647 struct cx23885_buffer, vb.queue); 1648 list_del(&buf->vb.queue); 1649 buf->vb.state = VIDEOBUF_ERROR; 1650 wake_up(&buf->vb.done); 1651 printk(KERN_ERR "%s: [%p/%d] timeout - dma=0x%08lx\n", 1652 dev->name, buf, buf->vb.i, 1653 (unsigned long)buf->risc.dma); 1654 } 1655 cx23885_restart_video_queue(dev, q); 1656 spin_unlock_irqrestore(&dev->slock, flags); 1657 } 1658 1659 int cx23885_video_irq(struct cx23885_dev *dev, u32 status) 1660 { 1661 u32 mask, count; 1662 int handled = 0; 1663 1664 mask = cx_read(VID_A_INT_MSK); 1665 if (0 == (status & mask)) 1666 return handled; 1667 1668 cx_write(VID_A_INT_STAT, status); 1669 1670 /* risc op code error, fifo overflow or line sync detection error */ 1671 if ((status & VID_BC_MSK_OPC_ERR) || 1672 (status & VID_BC_MSK_SYNC) || 1673 (status & VID_BC_MSK_OF)) { 1674 1675 if (status & VID_BC_MSK_OPC_ERR) { 1676 dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n", 1677 VID_BC_MSK_OPC_ERR); 1678 printk(KERN_WARNING "%s: video risc op code error\n", 1679 dev->name); 1680 cx23885_sram_channel_dump(dev, 1681 &dev->sram_channels[SRAM_CH01]); 1682 } 1683 1684 if (status & VID_BC_MSK_SYNC) 1685 dprintk(7, " (VID_BC_MSK_SYNC 0x%08x) " 1686 "video lines miss-match\n", 1687 VID_BC_MSK_SYNC); 1688 1689 if (status & VID_BC_MSK_OF) 1690 dprintk(7, " (VID_BC_MSK_OF 0x%08x) fifo overflow\n", 1691 VID_BC_MSK_OF); 1692 1693 } 1694 1695 /* Video */ 1696 if (status & VID_BC_MSK_RISCI1) { 1697 spin_lock(&dev->slock); 1698 count = cx_read(VID_A_GPCNT); 1699 cx23885_video_wakeup(dev, &dev->vidq, count); 1700 spin_unlock(&dev->slock); 1701 handled++; 1702 } 1703 if (status & VID_BC_MSK_RISCI2) { 1704 dprintk(2, "stopper video\n"); 1705 spin_lock(&dev->slock); 1706 cx23885_restart_video_queue(dev, &dev->vidq); 1707 spin_unlock(&dev->slock); 1708 handled++; 1709 } 1710 1711 /* Allow the VBI framework to process it's payload */ 1712 handled += cx23885_vbi_irq(dev, status); 1713 1714 return handled; 1715 } 1716 1717 /* ----------------------------------------------------------- */ 1718 /* exported stuff */ 1719 1720 static const struct v4l2_file_operations video_fops = { 1721 .owner = THIS_MODULE, 1722 .open = video_open, 1723 .release = video_release, 1724 .read = video_read, 1725 .poll = video_poll, 1726 .mmap = video_mmap, 1727 .ioctl = video_ioctl2, 1728 }; 1729 1730 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1731 .vidioc_querycap = vidioc_querycap, 1732 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1733 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1734 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1735 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1736 .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt, 1737 .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt, 1738 .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt, 1739 .vidioc_reqbufs = vidioc_reqbufs, 1740 .vidioc_querybuf = vidioc_querybuf, 1741 .vidioc_qbuf = vidioc_qbuf, 1742 .vidioc_dqbuf = vidioc_dqbuf, 1743 .vidioc_s_std = vidioc_s_std, 1744 .vidioc_g_std = vidioc_g_std, 1745 .vidioc_querystd = vidioc_g_std, 1746 .vidioc_enum_input = vidioc_enum_input, 1747 .vidioc_g_input = vidioc_g_input, 1748 .vidioc_s_input = vidioc_s_input, 1749 .vidioc_log_status = vidioc_log_status, 1750 .vidioc_queryctrl = vidioc_queryctrl, 1751 .vidioc_g_ctrl = vidioc_g_ctrl, 1752 .vidioc_s_ctrl = vidioc_s_ctrl, 1753 .vidioc_streamon = vidioc_streamon, 1754 .vidioc_streamoff = vidioc_streamoff, 1755 .vidioc_g_tuner = vidioc_g_tuner, 1756 .vidioc_s_tuner = vidioc_s_tuner, 1757 .vidioc_g_frequency = vidioc_g_frequency, 1758 .vidioc_s_frequency = vidioc_s_frequency, 1759 .vidioc_g_chip_ident = cx23885_g_chip_ident, 1760 #ifdef CONFIG_VIDEO_ADV_DEBUG 1761 .vidioc_g_register = cx23885_g_register, 1762 .vidioc_s_register = cx23885_s_register, 1763 #endif 1764 .vidioc_enumaudio = vidioc_enum_audinput, 1765 .vidioc_g_audio = vidioc_g_audinput, 1766 .vidioc_s_audio = vidioc_s_audinput, 1767 }; 1768 1769 static struct video_device cx23885_vbi_template; 1770 static struct video_device cx23885_video_template = { 1771 .name = "cx23885-video", 1772 .fops = &video_fops, 1773 .ioctl_ops = &video_ioctl_ops, 1774 .tvnorms = CX23885_NORMS, 1775 .current_norm = V4L2_STD_NTSC_M, 1776 }; 1777 1778 static const struct v4l2_file_operations radio_fops = { 1779 .owner = THIS_MODULE, 1780 .open = video_open, 1781 .release = video_release, 1782 .ioctl = video_ioctl2, 1783 }; 1784 1785 1786 void cx23885_video_unregister(struct cx23885_dev *dev) 1787 { 1788 dprintk(1, "%s()\n", __func__); 1789 cx23885_irq_remove(dev, 0x01); 1790 1791 if (dev->vbi_dev) { 1792 if (video_is_registered(dev->vbi_dev)) 1793 video_unregister_device(dev->vbi_dev); 1794 else 1795 video_device_release(dev->vbi_dev); 1796 dev->vbi_dev = NULL; 1797 btcx_riscmem_free(dev->pci, &dev->vbiq.stopper); 1798 } 1799 if (dev->video_dev) { 1800 if (video_is_registered(dev->video_dev)) 1801 video_unregister_device(dev->video_dev); 1802 else 1803 video_device_release(dev->video_dev); 1804 dev->video_dev = NULL; 1805 1806 btcx_riscmem_free(dev->pci, &dev->vidq.stopper); 1807 } 1808 1809 if (dev->audio_dev) 1810 cx23885_audio_unregister(dev); 1811 } 1812 1813 int cx23885_video_register(struct cx23885_dev *dev) 1814 { 1815 int err; 1816 1817 dprintk(1, "%s()\n", __func__); 1818 spin_lock_init(&dev->slock); 1819 1820 /* Initialize VBI template */ 1821 memcpy(&cx23885_vbi_template, &cx23885_video_template, 1822 sizeof(cx23885_vbi_template)); 1823 strcpy(cx23885_vbi_template.name, "cx23885-vbi"); 1824 1825 dev->tvnorm = cx23885_video_template.current_norm; 1826 1827 /* init video dma queues */ 1828 INIT_LIST_HEAD(&dev->vidq.active); 1829 INIT_LIST_HEAD(&dev->vidq.queued); 1830 dev->vidq.timeout.function = cx23885_vid_timeout; 1831 dev->vidq.timeout.data = (unsigned long)dev; 1832 init_timer(&dev->vidq.timeout); 1833 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper, 1834 VID_A_DMA_CTL, 0x11, 0x00); 1835 1836 /* init vbi dma queues */ 1837 INIT_LIST_HEAD(&dev->vbiq.active); 1838 INIT_LIST_HEAD(&dev->vbiq.queued); 1839 dev->vbiq.timeout.function = cx23885_vbi_timeout; 1840 dev->vbiq.timeout.data = (unsigned long)dev; 1841 init_timer(&dev->vbiq.timeout); 1842 cx23885_risc_stopper(dev->pci, &dev->vbiq.stopper, 1843 VID_A_DMA_CTL, 0x22, 0x00); 1844 1845 cx23885_irq_add_enable(dev, 0x01); 1846 1847 if ((TUNER_ABSENT != dev->tuner_type) && 1848 ((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) { 1849 struct v4l2_subdev *sd = NULL; 1850 1851 if (dev->tuner_addr) 1852 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, 1853 &dev->i2c_bus[dev->tuner_bus].i2c_adap, 1854 "tuner", dev->tuner_addr, NULL); 1855 else 1856 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, 1857 &dev->i2c_bus[dev->tuner_bus].i2c_adap, 1858 "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV)); 1859 if (sd) { 1860 struct tuner_setup tun_setup; 1861 1862 memset(&tun_setup, 0, sizeof(tun_setup)); 1863 tun_setup.mode_mask = T_ANALOG_TV; 1864 tun_setup.type = dev->tuner_type; 1865 tun_setup.addr = v4l2_i2c_subdev_addr(sd); 1866 tun_setup.tuner_callback = cx23885_tuner_callback; 1867 1868 v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup); 1869 1870 if (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) { 1871 struct xc2028_ctrl ctrl = { 1872 .fname = XC2028_DEFAULT_FIRMWARE, 1873 .max_len = 64 1874 }; 1875 struct v4l2_priv_tun_config cfg = { 1876 .tuner = dev->tuner_type, 1877 .priv = &ctrl 1878 }; 1879 v4l2_subdev_call(sd, tuner, s_config, &cfg); 1880 } 1881 } 1882 } 1883 1884 /* register Video device */ 1885 dev->video_dev = cx23885_vdev_init(dev, dev->pci, 1886 &cx23885_video_template, "video"); 1887 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, 1888 video_nr[dev->nr]); 1889 if (err < 0) { 1890 printk(KERN_INFO "%s: can't register video device\n", 1891 dev->name); 1892 goto fail_unreg; 1893 } 1894 printk(KERN_INFO "%s: registered device %s [v4l2]\n", 1895 dev->name, video_device_node_name(dev->video_dev)); 1896 1897 /* register VBI device */ 1898 dev->vbi_dev = cx23885_vdev_init(dev, dev->pci, 1899 &cx23885_vbi_template, "vbi"); 1900 err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 1901 vbi_nr[dev->nr]); 1902 if (err < 0) { 1903 printk(KERN_INFO "%s: can't register vbi device\n", 1904 dev->name); 1905 goto fail_unreg; 1906 } 1907 printk(KERN_INFO "%s: registered device %s\n", 1908 dev->name, video_device_node_name(dev->vbi_dev)); 1909 1910 /* Register ALSA audio device */ 1911 dev->audio_dev = cx23885_audio_register(dev); 1912 1913 /* initial device configuration */ 1914 mutex_lock(&dev->lock); 1915 cx23885_set_tvnorm(dev, dev->tvnorm); 1916 init_controls(dev); 1917 cx23885_video_mux(dev, 0); 1918 cx23885_audio_mux(dev, 0); 1919 mutex_unlock(&dev->lock); 1920 1921 return 0; 1922 1923 fail_unreg: 1924 cx23885_video_unregister(dev); 1925 return err; 1926 } 1927 1928