cx23885-video.c revision 0ea6bc8d43c9ee3c5384bea184eab020927a5b2c
1/* 2 * Driver for the Conexant CX23885 PCIe bridge 3 * 4 * Copyright (c) 2007 Steven Toth <stoth@hauppauge.com> 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 38#ifdef CONFIG_VIDEO_V4L1_COMPAT 39/* Include V4L1 specific functions. Should be removed soon */ 40#include <linux/videodev.h> 41#endif 42 43MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards"); 44MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>"); 45MODULE_LICENSE("GPL"); 46 47/* ------------------------------------------------------------------ */ 48 49static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 50static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 51static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 52 53module_param_array(video_nr, int, NULL, 0444); 54module_param_array(vbi_nr, int, NULL, 0444); 55module_param_array(radio_nr, int, NULL, 0444); 56 57MODULE_PARM_DESC(video_nr, "video device numbers"); 58MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 59MODULE_PARM_DESC(radio_nr, "radio device numbers"); 60 61static unsigned int video_debug; 62module_param(video_debug, int, 0644); 63MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 64 65static unsigned int irq_debug; 66module_param(irq_debug, int, 0644); 67MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]"); 68 69static unsigned int vid_limit = 16; 70module_param(vid_limit, int, 0644); 71MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); 72 73#define dprintk(level, fmt, arg...)\ 74 do { if (video_debug >= level)\ 75 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\ 76 } while (0) 77 78/* ------------------------------------------------------------------- */ 79/* static data */ 80 81#define FORMAT_FLAGS_PACKED 0x01 82 83static struct cx23885_fmt formats[] = { 84 { 85 .name = "8 bpp, gray", 86 .fourcc = V4L2_PIX_FMT_GREY, 87 .depth = 8, 88 .flags = FORMAT_FLAGS_PACKED, 89 }, { 90 .name = "15 bpp RGB, le", 91 .fourcc = V4L2_PIX_FMT_RGB555, 92 .depth = 16, 93 .flags = FORMAT_FLAGS_PACKED, 94 }, { 95 .name = "15 bpp RGB, be", 96 .fourcc = V4L2_PIX_FMT_RGB555X, 97 .depth = 16, 98 .flags = FORMAT_FLAGS_PACKED, 99 }, { 100 .name = "16 bpp RGB, le", 101 .fourcc = V4L2_PIX_FMT_RGB565, 102 .depth = 16, 103 .flags = FORMAT_FLAGS_PACKED, 104 }, { 105 .name = "16 bpp RGB, be", 106 .fourcc = V4L2_PIX_FMT_RGB565X, 107 .depth = 16, 108 .flags = FORMAT_FLAGS_PACKED, 109 }, { 110 .name = "24 bpp RGB, le", 111 .fourcc = V4L2_PIX_FMT_BGR24, 112 .depth = 24, 113 .flags = FORMAT_FLAGS_PACKED, 114 }, { 115 .name = "32 bpp RGB, le", 116 .fourcc = V4L2_PIX_FMT_BGR32, 117 .depth = 32, 118 .flags = FORMAT_FLAGS_PACKED, 119 }, { 120 .name = "32 bpp RGB, be", 121 .fourcc = V4L2_PIX_FMT_RGB32, 122 .depth = 32, 123 .flags = FORMAT_FLAGS_PACKED, 124 }, { 125 .name = "4:2:2, packed, YUYV", 126 .fourcc = V4L2_PIX_FMT_YUYV, 127 .depth = 16, 128 .flags = FORMAT_FLAGS_PACKED, 129 }, { 130 .name = "4:2:2, packed, UYVY", 131 .fourcc = V4L2_PIX_FMT_UYVY, 132 .depth = 16, 133 .flags = FORMAT_FLAGS_PACKED, 134 }, 135}; 136 137static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc) 138{ 139 unsigned int i; 140 141 for (i = 0; i < ARRAY_SIZE(formats); i++) 142 if (formats[i].fourcc == fourcc) 143 return formats+i; 144 145 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc); 146 return NULL; 147} 148 149/* ------------------------------------------------------------------- */ 150 151static const struct v4l2_queryctrl no_ctl = { 152 .name = "42", 153 .flags = V4L2_CTRL_FLAG_DISABLED, 154}; 155 156static struct cx23885_ctrl cx23885_ctls[] = { 157 /* --- video --- */ 158 { 159 .v = { 160 .id = V4L2_CID_BRIGHTNESS, 161 .name = "Brightness", 162 .minimum = 0x00, 163 .maximum = 0xff, 164 .step = 1, 165 .default_value = 0x7f, 166 .type = V4L2_CTRL_TYPE_INTEGER, 167 }, 168 .off = 128, 169 .reg = LUMA_CTRL, 170 .mask = 0x00ff, 171 .shift = 0, 172 }, { 173 .v = { 174 .id = V4L2_CID_CONTRAST, 175 .name = "Contrast", 176 .minimum = 0, 177 .maximum = 0xff, 178 .step = 1, 179 .default_value = 0x3f, 180 .type = V4L2_CTRL_TYPE_INTEGER, 181 }, 182 .off = 0, 183 .reg = LUMA_CTRL, 184 .mask = 0xff00, 185 .shift = 8, 186 }, { 187 .v = { 188 .id = V4L2_CID_HUE, 189 .name = "Hue", 190 .minimum = 0, 191 .maximum = 0xff, 192 .step = 1, 193 .default_value = 0x7f, 194 .type = V4L2_CTRL_TYPE_INTEGER, 195 }, 196 .off = 128, 197 .reg = CHROMA_CTRL, 198 .mask = 0xff0000, 199 .shift = 16, 200 }, { 201 /* strictly, this only describes only U saturation. 202 * V saturation is handled specially through code. 203 */ 204 .v = { 205 .id = V4L2_CID_SATURATION, 206 .name = "Saturation", 207 .minimum = 0, 208 .maximum = 0xff, 209 .step = 1, 210 .default_value = 0x7f, 211 .type = V4L2_CTRL_TYPE_INTEGER, 212 }, 213 .off = 0, 214 .reg = CHROMA_CTRL, 215 .mask = 0x00ff, 216 .shift = 0, 217 }, { 218 /* --- audio --- */ 219 .v = { 220 .id = V4L2_CID_AUDIO_MUTE, 221 .name = "Mute", 222 .minimum = 0, 223 .maximum = 1, 224 .default_value = 1, 225 .type = V4L2_CTRL_TYPE_BOOLEAN, 226 }, 227 .reg = PATH1_CTL1, 228 .mask = (0x1f << 24), 229 .shift = 24, 230 }, { 231 .v = { 232 .id = V4L2_CID_AUDIO_VOLUME, 233 .name = "Volume", 234 .minimum = 0, 235 .maximum = 0x3f, 236 .step = 1, 237 .default_value = 0x3f, 238 .type = V4L2_CTRL_TYPE_INTEGER, 239 }, 240 .reg = PATH1_VOL_CTL, 241 .mask = 0xff, 242 .shift = 0, 243 } 244}; 245static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls); 246 247const u32 cx23885_user_ctrls[] = { 248 V4L2_CID_USER_CLASS, 249 V4L2_CID_BRIGHTNESS, 250 V4L2_CID_CONTRAST, 251 V4L2_CID_SATURATION, 252 V4L2_CID_HUE, 253 V4L2_CID_AUDIO_VOLUME, 254 V4L2_CID_AUDIO_MUTE, 255 0 256}; 257EXPORT_SYMBOL(cx23885_user_ctrls); 258 259static const u32 *ctrl_classes[] = { 260 cx23885_user_ctrls, 261 NULL 262}; 263 264void cx23885_video_wakeup(struct cx23885_dev *dev, 265 struct cx23885_dmaqueue *q, u32 count) 266{ 267 struct cx23885_buffer *buf; 268 int bc; 269 270 for (bc = 0;; bc++) { 271 if (list_empty(&q->active)) 272 break; 273 buf = list_entry(q->active.next, 274 struct cx23885_buffer, vb.queue); 275 276 /* count comes from the hw and is is 16bit wide -- 277 * this trick handles wrap-arounds correctly for 278 * up to 32767 buffers in flight... */ 279 if ((s16) (count - buf->count) < 0) 280 break; 281 282 do_gettimeofday(&buf->vb.ts); 283 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i, 284 count, buf->count); 285 buf->vb.state = VIDEOBUF_DONE; 286 list_del(&buf->vb.queue); 287 wake_up(&buf->vb.done); 288 } 289 if (list_empty(&q->active)) { 290 del_timer(&q->timeout); 291 } else { 292 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 293 } 294 if (bc != 1) 295 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n", 296 __func__, bc); 297} 298 299int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm) 300{ 301 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", 302 __func__, 303 (unsigned int)norm, 304 v4l2_norm_to_name(norm)); 305 306 dev->tvnorm = norm; 307 308 /* Tell the analog tuner/demods */ 309 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm); 310 311 /* Tell the internal A/V decoder */ 312 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm); 313 314 return 0; 315} 316 317struct video_device *cx23885_vdev_init(struct cx23885_dev *dev, 318 struct pci_dev *pci, 319 struct video_device *template, 320 char *type) 321{ 322 struct video_device *vfd; 323 dprintk(1, "%s()\n", __func__); 324 325 vfd = video_device_alloc(); 326 if (NULL == vfd) 327 return NULL; 328 *vfd = *template; 329 vfd->minor = -1; 330 vfd->parent = &pci->dev; 331 vfd->release = video_device_release; 332 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", 333 dev->name, type, cx23885_boards[dev->board].name); 334 return vfd; 335} 336 337int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl) 338{ 339 int i; 340 341 if (qctrl->id < V4L2_CID_BASE || 342 qctrl->id >= V4L2_CID_LASTP1) 343 return -EINVAL; 344 for (i = 0; i < CX23885_CTLS; i++) 345 if (cx23885_ctls[i].v.id == qctrl->id) 346 break; 347 if (i == CX23885_CTLS) { 348 *qctrl = no_ctl; 349 return 0; 350 } 351 *qctrl = cx23885_ctls[i].v; 352 return 0; 353} 354EXPORT_SYMBOL(cx23885_ctrl_query); 355 356/* ------------------------------------------------------------------- */ 357/* resource management */ 358 359static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh, 360 unsigned int bit) 361{ 362 dprintk(1, "%s()\n", __func__); 363 if (fh->resources & bit) 364 /* have it already allocated */ 365 return 1; 366 367 /* is it free? */ 368 mutex_lock(&dev->lock); 369 if (dev->resources & bit) { 370 /* no, someone else uses it */ 371 mutex_unlock(&dev->lock); 372 return 0; 373 } 374 /* it's free, grab it */ 375 fh->resources |= bit; 376 dev->resources |= bit; 377 dprintk(1, "res: get %d\n", bit); 378 mutex_unlock(&dev->lock); 379 return 1; 380} 381 382static int res_check(struct cx23885_fh *fh, unsigned int bit) 383{ 384 return (fh->resources & bit); 385} 386 387static int res_locked(struct cx23885_dev *dev, unsigned int bit) 388{ 389 return (dev->resources & bit); 390} 391 392static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh, 393 unsigned int bits) 394{ 395 BUG_ON((fh->resources & bits) != bits); 396 dprintk(1, "%s()\n", __func__); 397 398 mutex_lock(&dev->lock); 399 fh->resources &= ~bits; 400 dev->resources &= ~bits; 401 dprintk(1, "res: put %d\n", bits); 402 mutex_unlock(&dev->lock); 403} 404 405int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) 406{ 407 struct v4l2_routing route; 408 memset(&route, 0, sizeof(route)); 409 410 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n", 411 __func__, 412 input, INPUT(input)->vmux, 413 INPUT(input)->gpio0, INPUT(input)->gpio1, 414 INPUT(input)->gpio2, INPUT(input)->gpio3); 415 dev->input = input; 416 417 route.input = INPUT(input)->vmux; 418 419 /* Tell the internal A/V decoder */ 420 cx23885_call_i2c_clients(&dev->i2c_bus[2], 421 VIDIOC_INT_S_VIDEO_ROUTING, &route); 422 423 return 0; 424} 425EXPORT_SYMBOL(cx23885_video_mux); 426 427/* ------------------------------------------------------------------ */ 428int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width, 429 unsigned int height, enum v4l2_field field) 430{ 431 dprintk(1, "%s()\n", __func__); 432 return 0; 433} 434 435static int cx23885_start_video_dma(struct cx23885_dev *dev, 436 struct cx23885_dmaqueue *q, 437 struct cx23885_buffer *buf) 438{ 439 dprintk(1, "%s()\n", __func__); 440 441 /* setup fifo + format */ 442 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01], 443 buf->bpl, buf->risc.dma); 444 cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field); 445 446 /* reset counter */ 447 cx_write(VID_A_GPCNT_CTL, 3); 448 q->count = 1; 449 450 /* enable irq */ 451 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01); 452 cx_set(VID_A_INT_MSK, 0x000011); 453 454 /* start dma */ 455 cx_set(DEV_CNTRL2, (1<<5)); 456 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */ 457 458 return 0; 459} 460 461 462static int cx23885_restart_video_queue(struct cx23885_dev *dev, 463 struct cx23885_dmaqueue *q) 464{ 465 struct cx23885_buffer *buf, *prev; 466 struct list_head *item; 467 dprintk(1, "%s()\n", __func__); 468 469 if (!list_empty(&q->active)) { 470 buf = list_entry(q->active.next, struct cx23885_buffer, 471 vb.queue); 472 dprintk(2, "restart_queue [%p/%d]: restart dma\n", 473 buf, buf->vb.i); 474 cx23885_start_video_dma(dev, q, buf); 475 list_for_each(item, &q->active) { 476 buf = list_entry(item, struct cx23885_buffer, 477 vb.queue); 478 buf->count = q->count++; 479 } 480 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 481 return 0; 482 } 483 484 prev = NULL; 485 for (;;) { 486 if (list_empty(&q->queued)) 487 return 0; 488 buf = list_entry(q->queued.next, struct cx23885_buffer, 489 vb.queue); 490 if (NULL == prev) { 491 list_move_tail(&buf->vb.queue, &q->active); 492 cx23885_start_video_dma(dev, q, buf); 493 buf->vb.state = VIDEOBUF_ACTIVE; 494 buf->count = q->count++; 495 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 496 dprintk(2, "[%p/%d] restart_queue - first active\n", 497 buf, buf->vb.i); 498 499 } else if (prev->vb.width == buf->vb.width && 500 prev->vb.height == buf->vb.height && 501 prev->fmt == buf->fmt) { 502 list_move_tail(&buf->vb.queue, &q->active); 503 buf->vb.state = VIDEOBUF_ACTIVE; 504 buf->count = q->count++; 505 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 506 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */ 507 dprintk(2, "[%p/%d] restart_queue - move to active\n", 508 buf, buf->vb.i); 509 } else { 510 return 0; 511 } 512 prev = buf; 513 } 514} 515 516static int buffer_setup(struct videobuf_queue *q, unsigned int *count, 517 unsigned int *size) 518{ 519 struct cx23885_fh *fh = q->priv_data; 520 521 *size = fh->fmt->depth*fh->width*fh->height >> 3; 522 if (0 == *count) 523 *count = 32; 524 while (*size * *count > vid_limit * 1024 * 1024) 525 (*count)--; 526 return 0; 527} 528 529static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, 530 enum v4l2_field field) 531{ 532 struct cx23885_fh *fh = q->priv_data; 533 struct cx23885_dev *dev = fh->dev; 534 struct cx23885_buffer *buf = 535 container_of(vb, struct cx23885_buffer, vb); 536 int rc, init_buffer = 0; 537 u32 line0_offset, line1_offset; 538 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); 539 540 BUG_ON(NULL == fh->fmt); 541 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) || 542 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm)) 543 return -EINVAL; 544 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; 545 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 546 return -EINVAL; 547 548 if (buf->fmt != fh->fmt || 549 buf->vb.width != fh->width || 550 buf->vb.height != fh->height || 551 buf->vb.field != field) { 552 buf->fmt = fh->fmt; 553 buf->vb.width = fh->width; 554 buf->vb.height = fh->height; 555 buf->vb.field = field; 556 init_buffer = 1; 557 } 558 559 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 560 init_buffer = 1; 561 rc = videobuf_iolock(q, &buf->vb, NULL); 562 if (0 != rc) 563 goto fail; 564 } 565 566 if (init_buffer) { 567 buf->bpl = buf->vb.width * buf->fmt->depth >> 3; 568 switch (buf->vb.field) { 569 case V4L2_FIELD_TOP: 570 cx23885_risc_buffer(dev->pci, &buf->risc, 571 dma->sglist, 0, UNSET, 572 buf->bpl, 0, buf->vb.height); 573 break; 574 case V4L2_FIELD_BOTTOM: 575 cx23885_risc_buffer(dev->pci, &buf->risc, 576 dma->sglist, UNSET, 0, 577 buf->bpl, 0, buf->vb.height); 578 break; 579 case V4L2_FIELD_INTERLACED: 580 if (dev->tvnorm & V4L2_STD_NTSC) { 581 /* cx25840 transmits NTSC bottom field first */ 582 dprintk(1, "%s() Creating NTSC risc\n", 583 __func__); 584 line0_offset = buf->bpl; 585 line1_offset = 0; 586 } else { 587 /* All other formats are top field first */ 588 dprintk(1, "%s() Creating PAL/SECAM risc\n", 589 __func__); 590 line0_offset = 0; 591 line1_offset = buf->bpl; 592 } 593 cx23885_risc_buffer(dev->pci, &buf->risc, 594 dma->sglist, line0_offset, 595 line1_offset, 596 buf->bpl, buf->bpl, 597 buf->vb.height >> 1); 598 break; 599 case V4L2_FIELD_SEQ_TB: 600 cx23885_risc_buffer(dev->pci, &buf->risc, 601 dma->sglist, 602 0, buf->bpl * (buf->vb.height >> 1), 603 buf->bpl, 0, 604 buf->vb.height >> 1); 605 break; 606 case V4L2_FIELD_SEQ_BT: 607 cx23885_risc_buffer(dev->pci, &buf->risc, 608 dma->sglist, 609 buf->bpl * (buf->vb.height >> 1), 0, 610 buf->bpl, 0, 611 buf->vb.height >> 1); 612 break; 613 default: 614 BUG(); 615 } 616 } 617 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n", 618 buf, buf->vb.i, 619 fh->width, fh->height, fh->fmt->depth, fh->fmt->name, 620 (unsigned long)buf->risc.dma); 621 622 buf->vb.state = VIDEOBUF_PREPARED; 623 return 0; 624 625 fail: 626 cx23885_free_buffer(q, buf); 627 return rc; 628} 629 630static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 631{ 632 struct cx23885_buffer *buf = container_of(vb, 633 struct cx23885_buffer, vb); 634 struct cx23885_buffer *prev; 635 struct cx23885_fh *fh = vq->priv_data; 636 struct cx23885_dev *dev = fh->dev; 637 struct cx23885_dmaqueue *q = &dev->vidq; 638 639 /* add jump to stopper */ 640 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); 641 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); 642 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ 643 644 if (!list_empty(&q->queued)) { 645 list_add_tail(&buf->vb.queue, &q->queued); 646 buf->vb.state = VIDEOBUF_QUEUED; 647 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", 648 buf, buf->vb.i); 649 650 } else if (list_empty(&q->active)) { 651 list_add_tail(&buf->vb.queue, &q->active); 652 cx23885_start_video_dma(dev, q, buf); 653 buf->vb.state = VIDEOBUF_ACTIVE; 654 buf->count = q->count++; 655 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 656 dprintk(2, "[%p/%d] buffer_queue - first active\n", 657 buf, buf->vb.i); 658 659 } else { 660 prev = list_entry(q->active.prev, struct cx23885_buffer, 661 vb.queue); 662 if (prev->vb.width == buf->vb.width && 663 prev->vb.height == buf->vb.height && 664 prev->fmt == buf->fmt) { 665 list_add_tail(&buf->vb.queue, &q->active); 666 buf->vb.state = VIDEOBUF_ACTIVE; 667 buf->count = q->count++; 668 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 669 /* 64 bit bits 63-32 */ 670 prev->risc.jmp[2] = cpu_to_le32(0); 671 dprintk(2, "[%p/%d] buffer_queue - append to active\n", 672 buf, buf->vb.i); 673 674 } else { 675 list_add_tail(&buf->vb.queue, &q->queued); 676 buf->vb.state = VIDEOBUF_QUEUED; 677 dprintk(2, "[%p/%d] buffer_queue - first queued\n", 678 buf, buf->vb.i); 679 } 680 } 681} 682 683static void buffer_release(struct videobuf_queue *q, 684 struct videobuf_buffer *vb) 685{ 686 struct cx23885_buffer *buf = container_of(vb, 687 struct cx23885_buffer, vb); 688 689 cx23885_free_buffer(q, buf); 690} 691 692static struct videobuf_queue_ops cx23885_video_qops = { 693 .buf_setup = buffer_setup, 694 .buf_prepare = buffer_prepare, 695 .buf_queue = buffer_queue, 696 .buf_release = buffer_release, 697}; 698 699static struct videobuf_queue *get_queue(struct cx23885_fh *fh) 700{ 701 switch (fh->type) { 702 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 703 return &fh->vidq; 704 case V4L2_BUF_TYPE_VBI_CAPTURE: 705 return &fh->vbiq; 706 default: 707 BUG(); 708 return NULL; 709 } 710} 711 712static int get_resource(struct cx23885_fh *fh) 713{ 714 switch (fh->type) { 715 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 716 return RESOURCE_VIDEO; 717 case V4L2_BUF_TYPE_VBI_CAPTURE: 718 return RESOURCE_VBI; 719 default: 720 BUG(); 721 return 0; 722 } 723} 724 725static int video_open(struct inode *inode, struct file *file) 726{ 727 int minor = iminor(inode); 728 struct cx23885_dev *h, *dev = NULL; 729 struct cx23885_fh *fh; 730 struct list_head *list; 731 enum v4l2_buf_type type = 0; 732 int radio = 0; 733 734 list_for_each(list, &cx23885_devlist) { 735 h = list_entry(list, struct cx23885_dev, devlist); 736 if (h->video_dev->minor == minor) { 737 dev = h; 738 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 739 } 740 if (h->vbi_dev && 741 h->vbi_dev->minor == minor) { 742 dev = h; 743 type = V4L2_BUF_TYPE_VBI_CAPTURE; 744 } 745 if (h->radio_dev && 746 h->radio_dev->minor == minor) { 747 radio = 1; 748 dev = h; 749 } 750 } 751 if (NULL == dev) 752 return -ENODEV; 753 754 dprintk(1, "open minor=%d radio=%d type=%s\n", 755 minor, radio, v4l2_type_names[type]); 756 757 /* allocate + initialize per filehandle data */ 758 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 759 if (NULL == fh) 760 return -ENOMEM; 761 file->private_data = fh; 762 fh->dev = dev; 763 fh->radio = radio; 764 fh->type = type; 765 fh->width = 320; 766 fh->height = 240; 767 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); 768 769 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops, 770 &dev->pci->dev, &dev->slock, 771 V4L2_BUF_TYPE_VIDEO_CAPTURE, 772 V4L2_FIELD_INTERLACED, 773 sizeof(struct cx23885_buffer), 774 fh); 775 776 dprintk(1, "post videobuf_queue_init()\n"); 777 778 779 return 0; 780} 781 782static ssize_t video_read(struct file *file, char __user *data, 783 size_t count, loff_t *ppos) 784{ 785 struct cx23885_fh *fh = file->private_data; 786 787 switch (fh->type) { 788 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 789 if (res_locked(fh->dev, RESOURCE_VIDEO)) 790 return -EBUSY; 791 return videobuf_read_one(&fh->vidq, data, count, ppos, 792 file->f_flags & O_NONBLOCK); 793 case V4L2_BUF_TYPE_VBI_CAPTURE: 794 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 795 return -EBUSY; 796 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1, 797 file->f_flags & O_NONBLOCK); 798 default: 799 BUG(); 800 return 0; 801 } 802} 803 804static unsigned int video_poll(struct file *file, 805 struct poll_table_struct *wait) 806{ 807 struct cx23885_fh *fh = file->private_data; 808 struct cx23885_buffer *buf; 809 810 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 811 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 812 return POLLERR; 813 return videobuf_poll_stream(file, &fh->vbiq, wait); 814 } 815 816 if (res_check(fh, RESOURCE_VIDEO)) { 817 /* streaming capture */ 818 if (list_empty(&fh->vidq.stream)) 819 return POLLERR; 820 buf = list_entry(fh->vidq.stream.next, 821 struct cx23885_buffer, vb.stream); 822 } else { 823 /* read() capture */ 824 buf = (struct cx23885_buffer *)fh->vidq.read_buf; 825 if (NULL == buf) 826 return POLLERR; 827 } 828 poll_wait(file, &buf->vb.done, wait); 829 if (buf->vb.state == VIDEOBUF_DONE || 830 buf->vb.state == VIDEOBUF_ERROR) 831 return POLLIN|POLLRDNORM; 832 return 0; 833} 834 835static int video_release(struct inode *inode, struct file *file) 836{ 837 struct cx23885_fh *fh = file->private_data; 838 struct cx23885_dev *dev = fh->dev; 839 840 /* turn off overlay */ 841 if (res_check(fh, RESOURCE_OVERLAY)) { 842 /* FIXME */ 843 res_free(dev, fh, RESOURCE_OVERLAY); 844 } 845 846 /* stop video capture */ 847 if (res_check(fh, RESOURCE_VIDEO)) { 848 videobuf_queue_cancel(&fh->vidq); 849 res_free(dev, fh, RESOURCE_VIDEO); 850 } 851 if (fh->vidq.read_buf) { 852 buffer_release(&fh->vidq, fh->vidq.read_buf); 853 kfree(fh->vidq.read_buf); 854 } 855 856 /* stop vbi capture */ 857 if (res_check(fh, RESOURCE_VBI)) { 858 if (fh->vbiq.streaming) 859 videobuf_streamoff(&fh->vbiq); 860 if (fh->vbiq.reading) 861 videobuf_read_stop(&fh->vbiq); 862 res_free(dev, fh, RESOURCE_VBI); 863 } 864 865 videobuf_mmap_free(&fh->vidq); 866 file->private_data = NULL; 867 kfree(fh); 868 869 /* We are not putting the tuner to sleep here on exit, because 870 * we want to use the mpeg encoder in another session to capture 871 * tuner video. Closing this will result in no video to the encoder. 872 */ 873 874 return 0; 875} 876 877static int video_mmap(struct file *file, struct vm_area_struct *vma) 878{ 879 struct cx23885_fh *fh = file->private_data; 880 881 return videobuf_mmap_mapper(get_queue(fh), vma); 882} 883 884/* ------------------------------------------------------------------ */ 885/* VIDEO CTRL IOCTLS */ 886 887int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl) 888{ 889 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__); 890 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl); 891 return 0; 892} 893EXPORT_SYMBOL(cx23885_get_control); 894 895int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl) 896{ 897 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)" 898 " (disabled - no action)\n", __func__); 899 return 0; 900} 901EXPORT_SYMBOL(cx23885_set_control); 902 903static void init_controls(struct cx23885_dev *dev) 904{ 905 struct v4l2_control ctrl; 906 int i; 907 908 for (i = 0; i < CX23885_CTLS; i++) { 909 ctrl.id = cx23885_ctls[i].v.id; 910 ctrl.value = cx23885_ctls[i].v.default_value; 911 912 cx23885_set_control(dev, &ctrl); 913 } 914} 915 916/* ------------------------------------------------------------------ */ 917/* VIDEO IOCTLS */ 918 919static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 920 struct v4l2_format *f) 921{ 922 struct cx23885_fh *fh = priv; 923 924 f->fmt.pix.width = fh->width; 925 f->fmt.pix.height = fh->height; 926 f->fmt.pix.field = fh->vidq.field; 927 f->fmt.pix.pixelformat = fh->fmt->fourcc; 928 f->fmt.pix.bytesperline = 929 (f->fmt.pix.width * fh->fmt->depth) >> 3; 930 f->fmt.pix.sizeimage = 931 f->fmt.pix.height * f->fmt.pix.bytesperline; 932 933 return 0; 934} 935 936static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 937 struct v4l2_format *f) 938{ 939 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 940 struct cx23885_fmt *fmt; 941 enum v4l2_field field; 942 unsigned int maxw, maxh; 943 944 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 945 if (NULL == fmt) 946 return -EINVAL; 947 948 field = f->fmt.pix.field; 949 maxw = norm_maxw(dev->tvnorm); 950 maxh = norm_maxh(dev->tvnorm); 951 952 if (V4L2_FIELD_ANY == field) { 953 field = (f->fmt.pix.height > maxh/2) 954 ? V4L2_FIELD_INTERLACED 955 : V4L2_FIELD_BOTTOM; 956 } 957 958 switch (field) { 959 case V4L2_FIELD_TOP: 960 case V4L2_FIELD_BOTTOM: 961 maxh = maxh / 2; 962 break; 963 case V4L2_FIELD_INTERLACED: 964 break; 965 default: 966 return -EINVAL; 967 } 968 969 f->fmt.pix.field = field; 970 if (f->fmt.pix.height < 32) 971 f->fmt.pix.height = 32; 972 if (f->fmt.pix.height > maxh) 973 f->fmt.pix.height = maxh; 974 if (f->fmt.pix.width < 48) 975 f->fmt.pix.width = 48; 976 if (f->fmt.pix.width > maxw) 977 f->fmt.pix.width = maxw; 978 f->fmt.pix.width &= ~0x03; 979 f->fmt.pix.bytesperline = 980 (f->fmt.pix.width * fmt->depth) >> 3; 981 f->fmt.pix.sizeimage = 982 f->fmt.pix.height * f->fmt.pix.bytesperline; 983 984 return 0; 985} 986 987static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 988 struct v4l2_format *f) 989{ 990 struct cx23885_fh *fh = priv; 991 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 992 int err; 993 994 dprintk(2, "%s()\n", __func__); 995 err = vidioc_try_fmt_vid_cap(file, priv, f); 996 997 if (0 != err) 998 return err; 999 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1000 fh->width = f->fmt.pix.width; 1001 fh->height = f->fmt.pix.height; 1002 fh->vidq.field = f->fmt.pix.field; 1003 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, 1004 fh->width, fh->height, fh->vidq.field); 1005 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f); 1006 return 0; 1007} 1008 1009static int vidioc_querycap(struct file *file, void *priv, 1010 struct v4l2_capability *cap) 1011{ 1012 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1013 1014 strcpy(cap->driver, "cx23885"); 1015 strlcpy(cap->card, cx23885_boards[dev->board].name, 1016 sizeof(cap->card)); 1017 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); 1018 cap->version = CX23885_VERSION_CODE; 1019 cap->capabilities = 1020 V4L2_CAP_VIDEO_CAPTURE | 1021 V4L2_CAP_READWRITE | 1022 V4L2_CAP_STREAMING | 1023 V4L2_CAP_VBI_CAPTURE; 1024 if (UNSET != dev->tuner_type) 1025 cap->capabilities |= V4L2_CAP_TUNER; 1026 return 0; 1027} 1028 1029static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1030 struct v4l2_fmtdesc *f) 1031{ 1032 if (unlikely(f->index >= ARRAY_SIZE(formats))) 1033 return -EINVAL; 1034 1035 strlcpy(f->description, formats[f->index].name, 1036 sizeof(f->description)); 1037 f->pixelformat = formats[f->index].fourcc; 1038 1039 return 0; 1040} 1041 1042#ifdef CONFIG_VIDEO_V4L1_COMPAT 1043static int vidiocgmbuf(struct file *file, void *priv, 1044 struct video_mbuf *mbuf) 1045{ 1046 struct cx23885_fh *fh = priv; 1047 struct videobuf_queue *q; 1048 struct v4l2_requestbuffers req; 1049 unsigned int i; 1050 int err; 1051 1052 q = get_queue(fh); 1053 memset(&req, 0, sizeof(req)); 1054 req.type = q->type; 1055 req.count = 8; 1056 req.memory = V4L2_MEMORY_MMAP; 1057 err = videobuf_reqbufs(q, &req); 1058 if (err < 0) 1059 return err; 1060 1061 mbuf->frames = req.count; 1062 mbuf->size = 0; 1063 for (i = 0; i < mbuf->frames; i++) { 1064 mbuf->offsets[i] = q->bufs[i]->boff; 1065 mbuf->size += q->bufs[i]->bsize; 1066 } 1067 return 0; 1068} 1069#endif 1070 1071static int vidioc_reqbufs(struct file *file, void *priv, 1072 struct v4l2_requestbuffers *p) 1073{ 1074 struct cx23885_fh *fh = priv; 1075 return (videobuf_reqbufs(get_queue(fh), p)); 1076} 1077 1078static int vidioc_querybuf(struct file *file, void *priv, 1079 struct v4l2_buffer *p) 1080{ 1081 struct cx23885_fh *fh = priv; 1082 return (videobuf_querybuf(get_queue(fh), p)); 1083} 1084 1085static int vidioc_qbuf(struct file *file, void *priv, 1086 struct v4l2_buffer *p) 1087{ 1088 struct cx23885_fh *fh = priv; 1089 return (videobuf_qbuf(get_queue(fh), p)); 1090} 1091 1092static int vidioc_dqbuf(struct file *file, void *priv, 1093 struct v4l2_buffer *p) 1094{ 1095 struct cx23885_fh *fh = priv; 1096 return (videobuf_dqbuf(get_queue(fh), p, 1097 file->f_flags & O_NONBLOCK)); 1098} 1099 1100static int vidioc_streamon(struct file *file, void *priv, 1101 enum v4l2_buf_type i) 1102{ 1103 struct cx23885_fh *fh = priv; 1104 struct cx23885_dev *dev = fh->dev; 1105 dprintk(1, "%s()\n", __func__); 1106 1107 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) 1108 return -EINVAL; 1109 if (unlikely(i != fh->type)) 1110 return -EINVAL; 1111 1112 if (unlikely(!res_get(dev, fh, get_resource(fh)))) 1113 return -EBUSY; 1114 return videobuf_streamon(get_queue(fh)); 1115} 1116 1117static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) 1118{ 1119 struct cx23885_fh *fh = priv; 1120 struct cx23885_dev *dev = fh->dev; 1121 int err, res; 1122 dprintk(1, "%s()\n", __func__); 1123 1124 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1125 return -EINVAL; 1126 if (i != fh->type) 1127 return -EINVAL; 1128 1129 res = get_resource(fh); 1130 err = videobuf_streamoff(get_queue(fh)); 1131 if (err < 0) 1132 return err; 1133 res_free(dev, fh, res); 1134 return 0; 1135} 1136 1137static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms) 1138{ 1139 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1140 dprintk(1, "%s()\n", __func__); 1141 1142 mutex_lock(&dev->lock); 1143 cx23885_set_tvnorm(dev, *tvnorms); 1144 mutex_unlock(&dev->lock); 1145 1146 return 0; 1147} 1148 1149int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i) 1150{ 1151 static const char *iname[] = { 1152 [CX23885_VMUX_COMPOSITE1] = "Composite1", 1153 [CX23885_VMUX_COMPOSITE2] = "Composite2", 1154 [CX23885_VMUX_COMPOSITE3] = "Composite3", 1155 [CX23885_VMUX_COMPOSITE4] = "Composite4", 1156 [CX23885_VMUX_SVIDEO] = "S-Video", 1157 [CX23885_VMUX_TELEVISION] = "Television", 1158 [CX23885_VMUX_CABLE] = "Cable TV", 1159 [CX23885_VMUX_DVB] = "DVB", 1160 [CX23885_VMUX_DEBUG] = "for debug only", 1161 }; 1162 unsigned int n; 1163 dprintk(1, "%s()\n", __func__); 1164 1165 n = i->index; 1166 if (n >= 4) 1167 return -EINVAL; 1168 1169 if (0 == INPUT(n)->type) 1170 return -EINVAL; 1171 1172 memset(i, 0, sizeof(*i)); 1173 i->index = n; 1174 i->type = V4L2_INPUT_TYPE_CAMERA; 1175 strcpy(i->name, iname[INPUT(n)->type]); 1176 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) || 1177 (CX23885_VMUX_CABLE == INPUT(n)->type)) 1178 i->type = V4L2_INPUT_TYPE_TUNER; 1179 i->std = CX23885_NORMS; 1180 return 0; 1181} 1182EXPORT_SYMBOL(cx23885_enum_input); 1183 1184static int vidioc_enum_input(struct file *file, void *priv, 1185 struct v4l2_input *i) 1186{ 1187 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1188 dprintk(1, "%s()\n", __func__); 1189 return cx23885_enum_input(dev, i); 1190} 1191 1192static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1193{ 1194 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1195 1196 *i = dev->input; 1197 dprintk(1, "%s() returns %d\n", __func__, *i); 1198 return 0; 1199} 1200 1201static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 1202{ 1203 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1204 1205 dprintk(1, "%s(%d)\n", __func__, i); 1206 1207 if (i >= 4) { 1208 dprintk(1, "%s() -EINVAL\n", __func__); 1209 return -EINVAL; 1210 } 1211 1212 mutex_lock(&dev->lock); 1213 cx23885_video_mux(dev, i); 1214 mutex_unlock(&dev->lock); 1215 return 0; 1216} 1217 1218static int vidioc_queryctrl(struct file *file, void *priv, 1219 struct v4l2_queryctrl *qctrl) 1220{ 1221 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); 1222 if (unlikely(qctrl->id == 0)) 1223 return -EINVAL; 1224 return cx23885_ctrl_query(qctrl); 1225} 1226 1227static int vidioc_g_ctrl(struct file *file, void *priv, 1228 struct v4l2_control *ctl) 1229{ 1230 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1231 1232 return cx23885_get_control(dev, ctl); 1233} 1234 1235static int vidioc_s_ctrl(struct file *file, void *priv, 1236 struct v4l2_control *ctl) 1237{ 1238 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1239 1240 return cx23885_set_control(dev, ctl); 1241} 1242 1243static int vidioc_g_tuner(struct file *file, void *priv, 1244 struct v4l2_tuner *t) 1245{ 1246 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1247 1248 if (unlikely(UNSET == dev->tuner_type)) 1249 return -EINVAL; 1250 if (0 != t->index) 1251 return -EINVAL; 1252 1253 strcpy(t->name, "Television"); 1254 t->type = V4L2_TUNER_ANALOG_TV; 1255 t->capability = V4L2_TUNER_CAP_NORM; 1256 t->rangehigh = 0xffffffffUL; 1257 t->signal = 0xffff ; /* LOCKED */ 1258 return 0; 1259} 1260 1261static int vidioc_s_tuner(struct file *file, void *priv, 1262 struct v4l2_tuner *t) 1263{ 1264 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1265 1266 if (UNSET == dev->tuner_type) 1267 return -EINVAL; 1268 if (0 != t->index) 1269 return -EINVAL; 1270 return 0; 1271} 1272 1273static int vidioc_g_frequency(struct file *file, void *priv, 1274 struct v4l2_frequency *f) 1275{ 1276 struct cx23885_fh *fh = priv; 1277 struct cx23885_dev *dev = fh->dev; 1278 1279 if (unlikely(UNSET == dev->tuner_type)) 1280 return -EINVAL; 1281 1282 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */ 1283 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 1284 f->frequency = dev->freq; 1285 1286 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f); 1287 1288 return 0; 1289} 1290 1291int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f) 1292{ 1293 if (unlikely(UNSET == dev->tuner_type)) 1294 return -EINVAL; 1295 if (unlikely(f->tuner != 0)) 1296 return -EINVAL; 1297 1298 mutex_lock(&dev->lock); 1299 dev->freq = f->frequency; 1300 1301 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f); 1302 1303 /* When changing channels it is required to reset TVAUDIO */ 1304 msleep(10); 1305 1306 mutex_unlock(&dev->lock); 1307 1308 return 0; 1309} 1310EXPORT_SYMBOL(cx23885_set_freq); 1311 1312static int vidioc_s_frequency(struct file *file, void *priv, 1313 struct v4l2_frequency *f) 1314{ 1315 struct cx23885_fh *fh = priv; 1316 struct cx23885_dev *dev = fh->dev; 1317 1318 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) 1319 return -EINVAL; 1320 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) 1321 return -EINVAL; 1322 1323 return 1324 cx23885_set_freq(dev, f); 1325} 1326 1327#ifdef CONFIG_VIDEO_ADV_DEBUG 1328static int vidioc_g_register(struct file *file, void *fh, 1329 struct v4l2_register *reg) 1330{ 1331 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; 1332 1333 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 1334 return -EINVAL; 1335 1336 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg); 1337 1338 return 0; 1339} 1340 1341static int vidioc_s_register(struct file *file, void *fh, 1342 struct v4l2_register *reg) 1343{ 1344 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; 1345 1346 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 1347 return -EINVAL; 1348 1349 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg); 1350 1351 return 0; 1352} 1353#endif 1354 1355/* ----------------------------------------------------------- */ 1356 1357static void cx23885_vid_timeout(unsigned long data) 1358{ 1359 struct cx23885_dev *dev = (struct cx23885_dev *)data; 1360 struct cx23885_dmaqueue *q = &dev->vidq; 1361 struct cx23885_buffer *buf; 1362 unsigned long flags; 1363 1364 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); 1365 1366 cx_clear(VID_A_DMA_CTL, 0x11); 1367 1368 spin_lock_irqsave(&dev->slock, flags); 1369 while (!list_empty(&q->active)) { 1370 buf = list_entry(q->active.next, 1371 struct cx23885_buffer, vb.queue); 1372 list_del(&buf->vb.queue); 1373 buf->vb.state = VIDEOBUF_ERROR; 1374 wake_up(&buf->vb.done); 1375 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n", 1376 dev->name, buf, buf->vb.i, 1377 (unsigned long)buf->risc.dma); 1378 } 1379 cx23885_restart_video_queue(dev, q); 1380 spin_unlock_irqrestore(&dev->slock, flags); 1381} 1382 1383int cx23885_video_irq(struct cx23885_dev *dev, u32 status) 1384{ 1385 u32 mask, count; 1386 int handled = 0; 1387 1388 mask = cx_read(VID_A_INT_MSK); 1389 if (0 == (status & mask)) 1390 return handled; 1391 cx_write(VID_A_INT_STAT, status); 1392 1393 dprintk(2, "%s() status = 0x%08x\n", __func__, status); 1394 /* risc op code error */ 1395 if (status & (1 << 16)) { 1396 printk(KERN_WARNING "%s/0: video risc op code error\n", 1397 dev->name); 1398 cx_clear(VID_A_DMA_CTL, 0x11); 1399 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); 1400 } 1401 1402 /* risc1 y */ 1403 if (status & 0x01) { 1404 spin_lock(&dev->slock); 1405 count = cx_read(VID_A_GPCNT); 1406 cx23885_video_wakeup(dev, &dev->vidq, count); 1407 spin_unlock(&dev->slock); 1408 handled++; 1409 } 1410 /* risc2 y */ 1411 if (status & 0x10) { 1412 dprintk(2, "stopper video\n"); 1413 spin_lock(&dev->slock); 1414 cx23885_restart_video_queue(dev, &dev->vidq); 1415 spin_unlock(&dev->slock); 1416 handled++; 1417 } 1418 1419 return handled; 1420} 1421 1422/* ----------------------------------------------------------- */ 1423/* exported stuff */ 1424 1425static const struct file_operations video_fops = { 1426 .owner = THIS_MODULE, 1427 .open = video_open, 1428 .release = video_release, 1429 .read = video_read, 1430 .poll = video_poll, 1431 .mmap = video_mmap, 1432 .ioctl = video_ioctl2, 1433 .compat_ioctl = v4l_compat_ioctl32, 1434 .llseek = no_llseek, 1435}; 1436 1437static const struct v4l2_ioctl_ops video_ioctl_ops = { 1438 .vidioc_querycap = vidioc_querycap, 1439 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1440 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1441 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1442 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1443 .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt, 1444 .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt, 1445 .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt, 1446 .vidioc_reqbufs = vidioc_reqbufs, 1447 .vidioc_querybuf = vidioc_querybuf, 1448 .vidioc_qbuf = vidioc_qbuf, 1449 .vidioc_dqbuf = vidioc_dqbuf, 1450 .vidioc_s_std = vidioc_s_std, 1451 .vidioc_enum_input = vidioc_enum_input, 1452 .vidioc_g_input = vidioc_g_input, 1453 .vidioc_s_input = vidioc_s_input, 1454 .vidioc_queryctrl = vidioc_queryctrl, 1455 .vidioc_g_ctrl = vidioc_g_ctrl, 1456 .vidioc_s_ctrl = vidioc_s_ctrl, 1457 .vidioc_streamon = vidioc_streamon, 1458 .vidioc_streamoff = vidioc_streamoff, 1459#ifdef CONFIG_VIDEO_V4L1_COMPAT 1460 .vidiocgmbuf = vidiocgmbuf, 1461#endif 1462 .vidioc_g_tuner = vidioc_g_tuner, 1463 .vidioc_s_tuner = vidioc_s_tuner, 1464 .vidioc_g_frequency = vidioc_g_frequency, 1465 .vidioc_s_frequency = vidioc_s_frequency, 1466#ifdef CONFIG_VIDEO_ADV_DEBUG 1467 .vidioc_g_register = vidioc_g_register, 1468 .vidioc_s_register = vidioc_s_register, 1469#endif 1470}; 1471 1472static struct video_device cx23885_vbi_template; 1473static struct video_device cx23885_video_template = { 1474 .name = "cx23885-video", 1475 .fops = &video_fops, 1476 .minor = -1, 1477 .ioctl_ops = &video_ioctl_ops, 1478 .tvnorms = CX23885_NORMS, 1479 .current_norm = V4L2_STD_NTSC_M, 1480}; 1481 1482static const struct file_operations radio_fops = { 1483 .owner = THIS_MODULE, 1484 .open = video_open, 1485 .release = video_release, 1486 .ioctl = video_ioctl2, 1487 .compat_ioctl = v4l_compat_ioctl32, 1488 .llseek = no_llseek, 1489}; 1490 1491 1492void cx23885_video_unregister(struct cx23885_dev *dev) 1493{ 1494 dprintk(1, "%s()\n", __func__); 1495 cx_clear(PCI_INT_MSK, 1); 1496 1497 if (dev->video_dev) { 1498 if (-1 != dev->video_dev->minor) 1499 video_unregister_device(dev->video_dev); 1500 else 1501 video_device_release(dev->video_dev); 1502 dev->video_dev = NULL; 1503 1504 btcx_riscmem_free(dev->pci, &dev->vidq.stopper); 1505 } 1506} 1507 1508int cx23885_video_register(struct cx23885_dev *dev) 1509{ 1510 int err; 1511 1512 dprintk(1, "%s()\n", __func__); 1513 spin_lock_init(&dev->slock); 1514 1515 /* Initialize VBI template */ 1516 memcpy(&cx23885_vbi_template, &cx23885_video_template, 1517 sizeof(cx23885_vbi_template)); 1518 strcpy(cx23885_vbi_template.name, "cx23885-vbi"); 1519 1520 dev->tvnorm = cx23885_video_template.current_norm; 1521 1522 /* init video dma queues */ 1523 INIT_LIST_HEAD(&dev->vidq.active); 1524 INIT_LIST_HEAD(&dev->vidq.queued); 1525 dev->vidq.timeout.function = cx23885_vid_timeout; 1526 dev->vidq.timeout.data = (unsigned long)dev; 1527 init_timer(&dev->vidq.timeout); 1528 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper, 1529 VID_A_DMA_CTL, 0x11, 0x00); 1530 1531 /* Don't enable VBI yet */ 1532 cx_set(PCI_INT_MSK, 1); 1533 1534 1535 /* register v4l devices */ 1536 dev->video_dev = cx23885_vdev_init(dev, dev->pci, 1537 &cx23885_video_template, "video"); 1538 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, 1539 video_nr[dev->nr]); 1540 if (err < 0) { 1541 printk(KERN_INFO "%s: can't register video device\n", 1542 dev->name); 1543 goto fail_unreg; 1544 } 1545 printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n", 1546 dev->name, dev->video_dev->minor & 0x1f); 1547 /* initial device configuration */ 1548 mutex_lock(&dev->lock); 1549 cx23885_set_tvnorm(dev, dev->tvnorm); 1550 init_controls(dev); 1551 cx23885_video_mux(dev, 0); 1552 mutex_unlock(&dev->lock); 1553 1554 return 0; 1555 1556fail_unreg: 1557 cx23885_video_unregister(dev); 1558 return err; 1559} 1560 1561