linux/drivers/media/usb/au0828/au0828-video.c
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   1/*
   2 * Auvitek AU0828 USB Bridge (Analog video support)
   3 *
   4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
   5 * Copyright (C) 2005-2008 Auvitek International, Ltd.
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License
   9 * As published by the Free Software Foundation; either version 2
  10 * of the License, or (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 */
  17
  18/* Developer Notes:
  19 *
  20 * The hardware scaler supported is unimplemented
  21 * AC97 audio support is unimplemented (only i2s audio mode)
  22 *
  23 */
  24
  25#include "au0828.h"
  26#include "au8522.h"
  27
  28#include <linux/module.h>
  29#include <linux/slab.h>
  30#include <linux/init.h>
  31#include <linux/device.h>
  32#include <media/v4l2-common.h>
  33#include <media/v4l2-mc.h>
  34#include <media/v4l2-ioctl.h>
  35#include <media/v4l2-event.h>
  36#include <media/tuner.h>
  37#include "au0828-reg.h"
  38
  39static DEFINE_MUTEX(au0828_sysfs_lock);
  40
  41/* ------------------------------------------------------------------
  42        Videobuf operations
  43   ------------------------------------------------------------------*/
  44
  45static unsigned int isoc_debug;
  46module_param(isoc_debug, int, 0644);
  47MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  48
  49#define au0828_isocdbg(fmt, arg...) \
  50do {\
  51        if (isoc_debug) { \
  52                pr_info("au0828 %s :"fmt, \
  53                       __func__ , ##arg);          \
  54        } \
  55  } while (0)
  56
  57static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
  58{
  59        if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
  60                dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
  61}
  62
  63static inline void print_err_status(struct au0828_dev *dev,
  64                                    int packet, int status)
  65{
  66        char *errmsg = "Unknown";
  67
  68        switch (status) {
  69        case -ENOENT:
  70                errmsg = "unlinked synchronously";
  71                break;
  72        case -ECONNRESET:
  73                errmsg = "unlinked asynchronously";
  74                break;
  75        case -ENOSR:
  76                errmsg = "Buffer error (overrun)";
  77                break;
  78        case -EPIPE:
  79                errmsg = "Stalled (device not responding)";
  80                break;
  81        case -EOVERFLOW:
  82                errmsg = "Babble (bad cable?)";
  83                break;
  84        case -EPROTO:
  85                errmsg = "Bit-stuff error (bad cable?)";
  86                break;
  87        case -EILSEQ:
  88                errmsg = "CRC/Timeout (could be anything)";
  89                break;
  90        case -ETIME:
  91                errmsg = "Device does not respond";
  92                break;
  93        }
  94        if (packet < 0) {
  95                au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
  96        } else {
  97                au0828_isocdbg("URB packet %d, status %d [%s].\n",
  98                               packet, status, errmsg);
  99        }
 100}
 101
 102static int check_dev(struct au0828_dev *dev)
 103{
 104        if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
 105                pr_info("v4l2 ioctl: device not present\n");
 106                return -ENODEV;
 107        }
 108
 109        if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
 110                pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
 111                return -EIO;
 112        }
 113        return 0;
 114}
 115
 116/*
 117 * IRQ callback, called by URB callback
 118 */
 119static void au0828_irq_callback(struct urb *urb)
 120{
 121        struct au0828_dmaqueue  *dma_q = urb->context;
 122        struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 123        unsigned long flags = 0;
 124        int i;
 125
 126        switch (urb->status) {
 127        case 0:             /* success */
 128        case -ETIMEDOUT:    /* NAK */
 129                break;
 130        case -ECONNRESET:   /* kill */
 131        case -ENOENT:
 132        case -ESHUTDOWN:
 133                au0828_isocdbg("au0828_irq_callback called: status kill\n");
 134                return;
 135        default:            /* unknown error */
 136                au0828_isocdbg("urb completition error %d.\n", urb->status);
 137                break;
 138        }
 139
 140        /* Copy data from URB */
 141        spin_lock_irqsave(&dev->slock, flags);
 142        dev->isoc_ctl.isoc_copy(dev, urb);
 143        spin_unlock_irqrestore(&dev->slock, flags);
 144
 145        /* Reset urb buffers */
 146        for (i = 0; i < urb->number_of_packets; i++) {
 147                urb->iso_frame_desc[i].status = 0;
 148                urb->iso_frame_desc[i].actual_length = 0;
 149        }
 150        urb->status = 0;
 151
 152        urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 153        if (urb->status) {
 154                au0828_isocdbg("urb resubmit failed (error=%i)\n",
 155                               urb->status);
 156        }
 157        dev->stream_state = STREAM_ON;
 158}
 159
 160/*
 161 * Stop and Deallocate URBs
 162 */
 163static void au0828_uninit_isoc(struct au0828_dev *dev)
 164{
 165        struct urb *urb;
 166        int i;
 167
 168        au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 169
 170        dev->isoc_ctl.nfields = -1;
 171        for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 172                urb = dev->isoc_ctl.urb[i];
 173                if (urb) {
 174                        if (!irqs_disabled())
 175                                usb_kill_urb(urb);
 176                        else
 177                                usb_unlink_urb(urb);
 178
 179                        if (dev->isoc_ctl.transfer_buffer[i]) {
 180                                usb_free_coherent(dev->usbdev,
 181                                        urb->transfer_buffer_length,
 182                                        dev->isoc_ctl.transfer_buffer[i],
 183                                        urb->transfer_dma);
 184                        }
 185                        usb_free_urb(urb);
 186                        dev->isoc_ctl.urb[i] = NULL;
 187                }
 188                dev->isoc_ctl.transfer_buffer[i] = NULL;
 189        }
 190
 191        kfree(dev->isoc_ctl.urb);
 192        kfree(dev->isoc_ctl.transfer_buffer);
 193
 194        dev->isoc_ctl.urb = NULL;
 195        dev->isoc_ctl.transfer_buffer = NULL;
 196        dev->isoc_ctl.num_bufs = 0;
 197
 198        dev->stream_state = STREAM_OFF;
 199}
 200
 201/*
 202 * Allocate URBs and start IRQ
 203 */
 204static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
 205                            int num_bufs, int max_pkt_size,
 206                            int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
 207{
 208        struct au0828_dmaqueue *dma_q = &dev->vidq;
 209        int i;
 210        int sb_size, pipe;
 211        struct urb *urb;
 212        int j, k;
 213        int rc;
 214
 215        au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
 216
 217        dev->isoc_ctl.isoc_copy = isoc_copy;
 218        dev->isoc_ctl.num_bufs = num_bufs;
 219
 220        dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs,  GFP_KERNEL);
 221        if (!dev->isoc_ctl.urb) {
 222                au0828_isocdbg("cannot alloc memory for usb buffers\n");
 223                return -ENOMEM;
 224        }
 225
 226        dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
 227                                              GFP_KERNEL);
 228        if (!dev->isoc_ctl.transfer_buffer) {
 229                au0828_isocdbg("cannot allocate memory for usb transfer\n");
 230                kfree(dev->isoc_ctl.urb);
 231                return -ENOMEM;
 232        }
 233
 234        dev->isoc_ctl.max_pkt_size = max_pkt_size;
 235        dev->isoc_ctl.buf = NULL;
 236
 237        sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 238
 239        /* allocate urbs and transfer buffers */
 240        for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 241                urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 242                if (!urb) {
 243                        au0828_uninit_isoc(dev);
 244                        return -ENOMEM;
 245                }
 246                dev->isoc_ctl.urb[i] = urb;
 247
 248                dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 249                        sb_size, GFP_KERNEL, &urb->transfer_dma);
 250                if (!dev->isoc_ctl.transfer_buffer[i]) {
 251                        printk("unable to allocate %i bytes for transfer buffer %i%s\n",
 252                                        sb_size, i,
 253                                        in_interrupt() ? " while in int" : "");
 254                        au0828_uninit_isoc(dev);
 255                        return -ENOMEM;
 256                }
 257                memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 258
 259                pipe = usb_rcvisocpipe(dev->usbdev,
 260                                       dev->isoc_in_endpointaddr),
 261
 262                usb_fill_int_urb(urb, dev->usbdev, pipe,
 263                                 dev->isoc_ctl.transfer_buffer[i], sb_size,
 264                                 au0828_irq_callback, dma_q, 1);
 265
 266                urb->number_of_packets = max_packets;
 267                urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 268
 269                k = 0;
 270                for (j = 0; j < max_packets; j++) {
 271                        urb->iso_frame_desc[j].offset = k;
 272                        urb->iso_frame_desc[j].length =
 273                                                dev->isoc_ctl.max_pkt_size;
 274                        k += dev->isoc_ctl.max_pkt_size;
 275                }
 276        }
 277
 278        /* submit urbs and enables IRQ */
 279        for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 280                rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 281                if (rc) {
 282                        au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 283                                       i, rc);
 284                        au0828_uninit_isoc(dev);
 285                        return rc;
 286                }
 287        }
 288
 289        return 0;
 290}
 291
 292/*
 293 * Announces that a buffer were filled and request the next
 294 */
 295static inline void buffer_filled(struct au0828_dev *dev,
 296                                 struct au0828_dmaqueue *dma_q,
 297                                 struct au0828_buffer *buf)
 298{
 299        struct vb2_v4l2_buffer *vb = &buf->vb;
 300        struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 301
 302        /* Advice that buffer was filled */
 303        au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 304
 305        if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 306                vb->sequence = dev->frame_count++;
 307        else
 308                vb->sequence = dev->vbi_frame_count++;
 309
 310        vb->field = V4L2_FIELD_INTERLACED;
 311        vb->vb2_buf.timestamp = ktime_get_ns();
 312        vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 313}
 314
 315/*
 316 * Identify the buffer header type and properly handles
 317 */
 318static void au0828_copy_video(struct au0828_dev *dev,
 319                              struct au0828_dmaqueue  *dma_q,
 320                              struct au0828_buffer *buf,
 321                              unsigned char *p,
 322                              unsigned char *outp, unsigned long len)
 323{
 324        void *fieldstart, *startwrite, *startread;
 325        int  linesdone, currlinedone, offset, lencopy, remain;
 326        int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 327
 328        if (len == 0)
 329                return;
 330
 331        if (dma_q->pos + len > buf->length)
 332                len = buf->length - dma_q->pos;
 333
 334        startread = p;
 335        remain = len;
 336
 337        /* Interlaces frame */
 338        if (buf->top_field)
 339                fieldstart = outp;
 340        else
 341                fieldstart = outp + bytesperline;
 342
 343        linesdone = dma_q->pos / bytesperline;
 344        currlinedone = dma_q->pos % bytesperline;
 345        offset = linesdone * bytesperline * 2 + currlinedone;
 346        startwrite = fieldstart + offset;
 347        lencopy = bytesperline - currlinedone;
 348        lencopy = lencopy > remain ? remain : lencopy;
 349
 350        if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 351                au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 352                               ((char *)startwrite + lencopy) -
 353                               ((char *)outp + buf->length));
 354                remain = (char *)outp + buf->length - (char *)startwrite;
 355                lencopy = remain;
 356        }
 357        if (lencopy <= 0)
 358                return;
 359        memcpy(startwrite, startread, lencopy);
 360
 361        remain -= lencopy;
 362
 363        while (remain > 0) {
 364                startwrite += lencopy + bytesperline;
 365                startread += lencopy;
 366                if (bytesperline > remain)
 367                        lencopy = remain;
 368                else
 369                        lencopy = bytesperline;
 370
 371                if ((char *)startwrite + lencopy > (char *)outp +
 372                    buf->length) {
 373                        au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 374                                       ((char *)startwrite + lencopy) -
 375                                       ((char *)outp + buf->length));
 376                        lencopy = remain = (char *)outp + buf->length -
 377                                           (char *)startwrite;
 378                }
 379                if (lencopy <= 0)
 380                        break;
 381
 382                memcpy(startwrite, startread, lencopy);
 383
 384                remain -= lencopy;
 385        }
 386
 387        if (offset > 1440) {
 388                /* We have enough data to check for greenscreen */
 389                if (outp[0] < 0x60 && outp[1440] < 0x60)
 390                        dev->greenscreen_detected = 1;
 391        }
 392
 393        dma_q->pos += len;
 394}
 395
 396/*
 397 * video-buf generic routine to get the next available buffer
 398 */
 399static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 400                                struct au0828_buffer **buf)
 401{
 402        struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 403
 404        if (list_empty(&dma_q->active)) {
 405                au0828_isocdbg("No active queue to serve\n");
 406                dev->isoc_ctl.buf = NULL;
 407                *buf = NULL;
 408                return;
 409        }
 410
 411        /* Get the next buffer */
 412        *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 413        /* Cleans up buffer - Useful for testing for frame/URB loss */
 414        list_del(&(*buf)->list);
 415        dma_q->pos = 0;
 416        (*buf)->vb_buf = (*buf)->mem;
 417        dev->isoc_ctl.buf = *buf;
 418
 419        return;
 420}
 421
 422static void au0828_copy_vbi(struct au0828_dev *dev,
 423                              struct au0828_dmaqueue  *dma_q,
 424                              struct au0828_buffer *buf,
 425                              unsigned char *p,
 426                              unsigned char *outp, unsigned long len)
 427{
 428        unsigned char *startwrite, *startread;
 429        int bytesperline;
 430        int i, j = 0;
 431
 432        if (dev == NULL) {
 433                au0828_isocdbg("dev is null\n");
 434                return;
 435        }
 436
 437        if (dma_q == NULL) {
 438                au0828_isocdbg("dma_q is null\n");
 439                return;
 440        }
 441        if (buf == NULL)
 442                return;
 443        if (p == NULL) {
 444                au0828_isocdbg("p is null\n");
 445                return;
 446        }
 447        if (outp == NULL) {
 448                au0828_isocdbg("outp is null\n");
 449                return;
 450        }
 451
 452        bytesperline = dev->vbi_width;
 453
 454        if (dma_q->pos + len > buf->length)
 455                len = buf->length - dma_q->pos;
 456
 457        startread = p;
 458        startwrite = outp + (dma_q->pos / 2);
 459
 460        /* Make sure the bottom field populates the second half of the frame */
 461        if (buf->top_field == 0)
 462                startwrite += bytesperline * dev->vbi_height;
 463
 464        for (i = 0; i < len; i += 2)
 465                startwrite[j++] = startread[i+1];
 466
 467        dma_q->pos += len;
 468}
 469
 470
 471/*
 472 * video-buf generic routine to get the next available VBI buffer
 473 */
 474static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 475                                    struct au0828_buffer **buf)
 476{
 477        struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 478
 479        if (list_empty(&dma_q->active)) {
 480                au0828_isocdbg("No active queue to serve\n");
 481                dev->isoc_ctl.vbi_buf = NULL;
 482                *buf = NULL;
 483                return;
 484        }
 485
 486        /* Get the next buffer */
 487        *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 488        /* Cleans up buffer - Useful for testing for frame/URB loss */
 489        list_del(&(*buf)->list);
 490        dma_q->pos = 0;
 491        (*buf)->vb_buf = (*buf)->mem;
 492        dev->isoc_ctl.vbi_buf = *buf;
 493        return;
 494}
 495
 496/*
 497 * Controls the isoc copy of each urb packet
 498 */
 499static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 500{
 501        struct au0828_buffer    *buf;
 502        struct au0828_buffer    *vbi_buf;
 503        struct au0828_dmaqueue  *dma_q = urb->context;
 504        struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 505        unsigned char *outp = NULL;
 506        unsigned char *vbioutp = NULL;
 507        int i, len = 0, rc = 1;
 508        unsigned char *p;
 509        unsigned char fbyte;
 510        unsigned int vbi_field_size;
 511        unsigned int remain, lencopy;
 512
 513        if (!dev)
 514                return 0;
 515
 516        if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
 517            test_bit(DEV_MISCONFIGURED, &dev->dev_state))
 518                return 0;
 519
 520        if (urb->status < 0) {
 521                print_err_status(dev, -1, urb->status);
 522                if (urb->status == -ENOENT)
 523                        return 0;
 524        }
 525
 526        buf = dev->isoc_ctl.buf;
 527        if (buf != NULL)
 528                outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 529
 530        vbi_buf = dev->isoc_ctl.vbi_buf;
 531        if (vbi_buf != NULL)
 532                vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 533
 534        for (i = 0; i < urb->number_of_packets; i++) {
 535                int status = urb->iso_frame_desc[i].status;
 536
 537                if (status < 0) {
 538                        print_err_status(dev, i, status);
 539                        if (urb->iso_frame_desc[i].status != -EPROTO)
 540                                continue;
 541                }
 542
 543                if (urb->iso_frame_desc[i].actual_length <= 0)
 544                        continue;
 545
 546                if (urb->iso_frame_desc[i].actual_length >
 547                                                dev->max_pkt_size) {
 548                        au0828_isocdbg("packet bigger than packet size");
 549                        continue;
 550                }
 551
 552                p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 553                fbyte = p[0];
 554                len = urb->iso_frame_desc[i].actual_length - 4;
 555                p += 4;
 556
 557                if (fbyte & 0x80) {
 558                        len -= 4;
 559                        p += 4;
 560                        au0828_isocdbg("Video frame %s\n",
 561                                       (fbyte & 0x40) ? "odd" : "even");
 562                        if (fbyte & 0x40) {
 563                                /* VBI */
 564                                if (vbi_buf != NULL)
 565                                        buffer_filled(dev, vbi_dma_q, vbi_buf);
 566                                vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 567                                if (vbi_buf == NULL)
 568                                        vbioutp = NULL;
 569                                else
 570                                        vbioutp = vb2_plane_vaddr(
 571                                                &vbi_buf->vb.vb2_buf, 0);
 572
 573                                /* Video */
 574                                if (buf != NULL)
 575                                        buffer_filled(dev, dma_q, buf);
 576                                get_next_buf(dma_q, &buf);
 577                                if (buf == NULL)
 578                                        outp = NULL;
 579                                else
 580                                        outp = vb2_plane_vaddr(
 581                                                &buf->vb.vb2_buf, 0);
 582
 583                                /* As long as isoc traffic is arriving, keep
 584                                   resetting the timer */
 585                                if (dev->vid_timeout_running)
 586                                        mod_timer(&dev->vid_timeout,
 587                                                  jiffies + (HZ / 10));
 588                                if (dev->vbi_timeout_running)
 589                                        mod_timer(&dev->vbi_timeout,
 590                                                  jiffies + (HZ / 10));
 591                        }
 592
 593                        if (buf != NULL) {
 594                                if (fbyte & 0x40)
 595                                        buf->top_field = 1;
 596                                else
 597                                        buf->top_field = 0;
 598                        }
 599
 600                        if (vbi_buf != NULL) {
 601                                if (fbyte & 0x40)
 602                                        vbi_buf->top_field = 1;
 603                                else
 604                                        vbi_buf->top_field = 0;
 605                        }
 606
 607                        dev->vbi_read = 0;
 608                        vbi_dma_q->pos = 0;
 609                        dma_q->pos = 0;
 610                }
 611
 612                vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 613                if (dev->vbi_read < vbi_field_size) {
 614                        remain  = vbi_field_size - dev->vbi_read;
 615                        if (len < remain)
 616                                lencopy = len;
 617                        else
 618                                lencopy = remain;
 619
 620                        if (vbi_buf != NULL)
 621                                au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 622                                                vbioutp, len);
 623
 624                        len -= lencopy;
 625                        p += lencopy;
 626                        dev->vbi_read += lencopy;
 627                }
 628
 629                if (dev->vbi_read >= vbi_field_size && buf != NULL)
 630                        au0828_copy_video(dev, dma_q, buf, p, outp, len);
 631        }
 632        return rc;
 633}
 634
 635void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
 636{
 637#ifdef CONFIG_MEDIA_CONTROLLER
 638        int i;
 639
 640        for (i = 0; i < AU0828_MAX_INPUT; i++) {
 641                if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 642                        return;
 643                media_device_unregister_entity(&dev->input_ent[i]);
 644        }
 645#endif
 646}
 647
 648static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 649{
 650        struct au0828_dev *dev =
 651                container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
 652
 653        v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 654        v4l2_device_unregister(&dev->v4l2_dev);
 655        au0828_usb_v4l2_media_release(dev);
 656        au0828_usb_release(dev);
 657}
 658
 659int au0828_v4l2_device_register(struct usb_interface *interface,
 660                                struct au0828_dev *dev)
 661{
 662        int retval;
 663
 664        if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 665                return 0;
 666
 667        /* Create the v4l2_device */
 668#ifdef CONFIG_MEDIA_CONTROLLER
 669        dev->v4l2_dev.mdev = dev->media_dev;
 670#endif
 671        retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 672        if (retval) {
 673                pr_err("%s() v4l2_device_register failed\n",
 674                       __func__);
 675                return retval;
 676        }
 677
 678        dev->v4l2_dev.release = au0828_usb_v4l2_release;
 679
 680        /* This control handler will inherit the controls from au8522 */
 681        retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
 682        if (retval) {
 683                pr_err("%s() v4l2_ctrl_handler_init failed\n",
 684                       __func__);
 685                return retval;
 686        }
 687        dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
 688
 689        return 0;
 690}
 691
 692static int queue_setup(struct vb2_queue *vq,
 693                       unsigned int *nbuffers, unsigned int *nplanes,
 694                       unsigned int sizes[], struct device *alloc_devs[])
 695{
 696        struct au0828_dev *dev = vb2_get_drv_priv(vq);
 697        unsigned long size = dev->height * dev->bytesperline;
 698
 699        if (*nplanes)
 700                return sizes[0] < size ? -EINVAL : 0;
 701        *nplanes = 1;
 702        sizes[0] = size;
 703        return 0;
 704}
 705
 706static int
 707buffer_prepare(struct vb2_buffer *vb)
 708{
 709        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 710        struct au0828_buffer *buf = container_of(vbuf,
 711                                struct au0828_buffer, vb);
 712        struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 713
 714        buf->length = dev->height * dev->bytesperline;
 715
 716        if (vb2_plane_size(vb, 0) < buf->length) {
 717                pr_err("%s data will not fit into plane (%lu < %lu)\n",
 718                        __func__, vb2_plane_size(vb, 0), buf->length);
 719                return -EINVAL;
 720        }
 721        vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 722        return 0;
 723}
 724
 725static void
 726buffer_queue(struct vb2_buffer *vb)
 727{
 728        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 729        struct au0828_buffer    *buf     = container_of(vbuf,
 730                                                        struct au0828_buffer,
 731                                                        vb);
 732        struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 733        struct au0828_dmaqueue  *vidq    = &dev->vidq;
 734        unsigned long flags = 0;
 735
 736        buf->mem = vb2_plane_vaddr(vb, 0);
 737        buf->length = vb2_plane_size(vb, 0);
 738
 739        spin_lock_irqsave(&dev->slock, flags);
 740        list_add_tail(&buf->list, &vidq->active);
 741        spin_unlock_irqrestore(&dev->slock, flags);
 742}
 743
 744static int au0828_i2s_init(struct au0828_dev *dev)
 745{
 746        /* Enable i2s mode */
 747        au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 748        return 0;
 749}
 750
 751/*
 752 * Auvitek au0828 analog stream enable
 753 */
 754static int au0828_analog_stream_enable(struct au0828_dev *d)
 755{
 756        struct usb_interface *iface;
 757        int ret, h, w;
 758
 759        dprintk(1, "au0828_analog_stream_enable called\n");
 760
 761        iface = usb_ifnum_to_if(d->usbdev, 0);
 762        if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 763                dprintk(1, "Changing intf#0 to alt 5\n");
 764                /* set au0828 interface0 to AS5 here again */
 765                ret = usb_set_interface(d->usbdev, 0, 5);
 766                if (ret < 0) {
 767                        pr_info("Au0828 can't set alt setting to 5!\n");
 768                        return -EBUSY;
 769                }
 770        }
 771
 772        h = d->height / 2 + 2;
 773        w = d->width * 2;
 774
 775        au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 776        au0828_writereg(d, 0x106, 0x00);
 777        /* set x position */
 778        au0828_writereg(d, 0x110, 0x00);
 779        au0828_writereg(d, 0x111, 0x00);
 780        au0828_writereg(d, 0x114, w & 0xff);
 781        au0828_writereg(d, 0x115, w >> 8);
 782        /* set y position */
 783        au0828_writereg(d, 0x112, 0x00);
 784        au0828_writereg(d, 0x113, 0x00);
 785        au0828_writereg(d, 0x116, h & 0xff);
 786        au0828_writereg(d, 0x117, h >> 8);
 787        au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 788
 789        return 0;
 790}
 791
 792static int au0828_analog_stream_disable(struct au0828_dev *d)
 793{
 794        dprintk(1, "au0828_analog_stream_disable called\n");
 795        au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 796        return 0;
 797}
 798
 799static void au0828_analog_stream_reset(struct au0828_dev *dev)
 800{
 801        dprintk(1, "au0828_analog_stream_reset called\n");
 802        au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 803        mdelay(30);
 804        au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 805}
 806
 807/*
 808 * Some operations needs to stop current streaming
 809 */
 810static int au0828_stream_interrupt(struct au0828_dev *dev)
 811{
 812        dev->stream_state = STREAM_INTERRUPT;
 813        if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 814                return -ENODEV;
 815        return 0;
 816}
 817
 818int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 819{
 820        struct au0828_dev *dev = vb2_get_drv_priv(vq);
 821        int rc = 0;
 822
 823        dprintk(1, "au0828_start_analog_streaming called %d\n",
 824                dev->streaming_users);
 825
 826        if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 827                dev->frame_count = 0;
 828        else
 829                dev->vbi_frame_count = 0;
 830
 831        if (dev->streaming_users == 0) {
 832                /* If we were doing ac97 instead of i2s, it would go here...*/
 833                au0828_i2s_init(dev);
 834                rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 835                                   AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 836                                   au0828_isoc_copy);
 837                if (rc < 0) {
 838                        pr_info("au0828_init_isoc failed\n");
 839                        return rc;
 840                }
 841
 842                if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 843                        v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 844                                                s_stream, 1);
 845                        dev->vid_timeout_running = 1;
 846                        mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 847                } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 848                        dev->vbi_timeout_running = 1;
 849                        mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 850                }
 851        }
 852        dev->streaming_users++;
 853        return rc;
 854}
 855
 856static void au0828_stop_streaming(struct vb2_queue *vq)
 857{
 858        struct au0828_dev *dev = vb2_get_drv_priv(vq);
 859        struct au0828_dmaqueue *vidq = &dev->vidq;
 860        unsigned long flags = 0;
 861
 862        dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 863
 864        if (dev->streaming_users-- == 1)
 865                au0828_uninit_isoc(dev);
 866
 867        v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 868        dev->vid_timeout_running = 0;
 869        del_timer_sync(&dev->vid_timeout);
 870
 871        spin_lock_irqsave(&dev->slock, flags);
 872        if (dev->isoc_ctl.buf != NULL) {
 873                vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 874                                VB2_BUF_STATE_ERROR);
 875                dev->isoc_ctl.buf = NULL;
 876        }
 877        while (!list_empty(&vidq->active)) {
 878                struct au0828_buffer *buf;
 879
 880                buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 881                vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 882                list_del(&buf->list);
 883        }
 884        spin_unlock_irqrestore(&dev->slock, flags);
 885}
 886
 887void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 888{
 889        struct au0828_dev *dev = vb2_get_drv_priv(vq);
 890        struct au0828_dmaqueue *vbiq = &dev->vbiq;
 891        unsigned long flags = 0;
 892
 893        dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 894                dev->streaming_users);
 895
 896        if (dev->streaming_users-- == 1)
 897                au0828_uninit_isoc(dev);
 898
 899        spin_lock_irqsave(&dev->slock, flags);
 900        if (dev->isoc_ctl.vbi_buf != NULL) {
 901                vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 902                                VB2_BUF_STATE_ERROR);
 903                dev->isoc_ctl.vbi_buf = NULL;
 904        }
 905        while (!list_empty(&vbiq->active)) {
 906                struct au0828_buffer *buf;
 907
 908                buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 909                list_del(&buf->list);
 910                vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 911        }
 912        spin_unlock_irqrestore(&dev->slock, flags);
 913
 914        dev->vbi_timeout_running = 0;
 915        del_timer_sync(&dev->vbi_timeout);
 916}
 917
 918static const struct vb2_ops au0828_video_qops = {
 919        .queue_setup     = queue_setup,
 920        .buf_prepare     = buffer_prepare,
 921        .buf_queue       = buffer_queue,
 922        .start_streaming = au0828_start_analog_streaming,
 923        .stop_streaming  = au0828_stop_streaming,
 924        .wait_prepare    = vb2_ops_wait_prepare,
 925        .wait_finish     = vb2_ops_wait_finish,
 926};
 927
 928/* ------------------------------------------------------------------
 929   V4L2 interface
 930   ------------------------------------------------------------------*/
 931/*
 932 * au0828_analog_unregister
 933 * unregister v4l2 devices
 934 */
 935int au0828_analog_unregister(struct au0828_dev *dev)
 936{
 937        dprintk(1, "au0828_analog_unregister called\n");
 938
 939        /* No analog TV */
 940        if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 941                return 0;
 942
 943        mutex_lock(&au0828_sysfs_lock);
 944        video_unregister_device(&dev->vdev);
 945        video_unregister_device(&dev->vbi_dev);
 946        mutex_unlock(&au0828_sysfs_lock);
 947
 948        v4l2_device_disconnect(&dev->v4l2_dev);
 949        v4l2_device_put(&dev->v4l2_dev);
 950
 951        return 1;
 952}
 953
 954/* This function ensures that video frames continue to be delivered even if
 955   the ITU-656 input isn't receiving any data (thereby preventing applications
 956   such as tvtime from hanging) */
 957static void au0828_vid_buffer_timeout(struct timer_list *t)
 958{
 959        struct au0828_dev *dev = from_timer(dev, t, vid_timeout);
 960        struct au0828_dmaqueue *dma_q = &dev->vidq;
 961        struct au0828_buffer *buf;
 962        unsigned char *vid_data;
 963        unsigned long flags = 0;
 964
 965        spin_lock_irqsave(&dev->slock, flags);
 966
 967        buf = dev->isoc_ctl.buf;
 968        if (buf != NULL) {
 969                vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 970                memset(vid_data, 0x00, buf->length); /* Blank green frame */
 971                buffer_filled(dev, dma_q, buf);
 972        }
 973        get_next_buf(dma_q, &buf);
 974
 975        if (dev->vid_timeout_running == 1)
 976                mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 977
 978        spin_unlock_irqrestore(&dev->slock, flags);
 979}
 980
 981static void au0828_vbi_buffer_timeout(struct timer_list *t)
 982{
 983        struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);
 984        struct au0828_dmaqueue *dma_q = &dev->vbiq;
 985        struct au0828_buffer *buf;
 986        unsigned char *vbi_data;
 987        unsigned long flags = 0;
 988
 989        spin_lock_irqsave(&dev->slock, flags);
 990
 991        buf = dev->isoc_ctl.vbi_buf;
 992        if (buf != NULL) {
 993                vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 994                memset(vbi_data, 0x00, buf->length);
 995                buffer_filled(dev, dma_q, buf);
 996        }
 997        vbi_get_next_buf(dma_q, &buf);
 998
 999        if (dev->vbi_timeout_running == 1)
1000                mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1001        spin_unlock_irqrestore(&dev->slock, flags);
1002}
1003
1004static int au0828_v4l2_open(struct file *filp)
1005{
1006        struct au0828_dev *dev = video_drvdata(filp);
1007        int ret;
1008
1009        dprintk(1,
1010                "%s called std_set %d dev_state %ld stream users %d users %d\n",
1011                __func__, dev->std_set_in_tuner_core, dev->dev_state,
1012                dev->streaming_users, dev->users);
1013
1014        if (mutex_lock_interruptible(&dev->lock))
1015                return -ERESTARTSYS;
1016
1017        ret = v4l2_fh_open(filp);
1018        if (ret) {
1019                au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1020                                __func__, ret);
1021                mutex_unlock(&dev->lock);
1022                return ret;
1023        }
1024
1025        if (dev->users == 0) {
1026                au0828_analog_stream_enable(dev);
1027                au0828_analog_stream_reset(dev);
1028                dev->stream_state = STREAM_OFF;
1029                set_bit(DEV_INITIALIZED, &dev->dev_state);
1030        }
1031        dev->users++;
1032        mutex_unlock(&dev->lock);
1033        return ret;
1034}
1035
1036static int au0828_v4l2_close(struct file *filp)
1037{
1038        int ret;
1039        struct au0828_dev *dev = video_drvdata(filp);
1040        struct video_device *vdev = video_devdata(filp);
1041
1042        dprintk(1,
1043                "%s called std_set %d dev_state %ld stream users %d users %d\n",
1044                __func__, dev->std_set_in_tuner_core, dev->dev_state,
1045                dev->streaming_users, dev->users);
1046
1047        mutex_lock(&dev->lock);
1048        if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1049                /* Cancel timeout thread in case they didn't call streamoff */
1050                dev->vid_timeout_running = 0;
1051                del_timer_sync(&dev->vid_timeout);
1052        } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1053                        dev->vbi_timeout_running) {
1054                /* Cancel timeout thread in case they didn't call streamoff */
1055                dev->vbi_timeout_running = 0;
1056                del_timer_sync(&dev->vbi_timeout);
1057        }
1058
1059        if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1060                goto end;
1061
1062        if (dev->users == 1) {
1063                /*
1064                 * Avoid putting tuner in sleep if DVB or ALSA are
1065                 * streaming.
1066                 *
1067                 * On most USB devices  like au0828 the tuner can
1068                 * be safely put in sleep stare here if ALSA isn't
1069                 * streaming. Exceptions are some very old USB tuner
1070                 * models such as em28xx-based WinTV USB2 which have
1071                 * a separate audio output jack. The devices that have
1072                 * a separate audio output jack have analog tuners,
1073                 * like Philips FM1236. Those devices are always on,
1074                 * so the s_power callback are silently ignored.
1075                 * So, the current logic here does the following:
1076                 * Disable (put tuner to sleep) when
1077                 * - ALSA and DVB aren't not streaming;
1078                 * - the last V4L2 file handler is closed.
1079                 *
1080                 * FIXME:
1081                 *
1082                 * Additionally, this logic could be improved to
1083                 * disable the media source if the above conditions
1084                 * are met and if the device:
1085                 * - doesn't have a separate audio out plug (or
1086                 * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1087                 *
1088                 * Once this additional logic is in place, a callback
1089                 * is needed to enable the media source and power on
1090                 * the tuner, for radio to work.
1091                */
1092                ret = v4l_enable_media_source(vdev);
1093                if (ret == 0)
1094                        v4l2_device_call_all(&dev->v4l2_dev, 0, core,
1095                                             s_power, 0);
1096                dev->std_set_in_tuner_core = 0;
1097
1098                /* When close the device, set the usb intf0 into alt0 to free
1099                   USB bandwidth */
1100                ret = usb_set_interface(dev->usbdev, 0, 0);
1101                if (ret < 0)
1102                        pr_info("Au0828 can't set alternate to 0!\n");
1103        }
1104end:
1105        _vb2_fop_release(filp, NULL);
1106        dev->users--;
1107        mutex_unlock(&dev->lock);
1108        return 0;
1109}
1110
1111/* Must be called with dev->lock held */
1112static void au0828_init_tuner(struct au0828_dev *dev)
1113{
1114        struct v4l2_frequency f = {
1115                .frequency = dev->ctrl_freq,
1116                .type = V4L2_TUNER_ANALOG_TV,
1117        };
1118
1119        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1120                dev->std_set_in_tuner_core, dev->dev_state);
1121
1122        if (dev->std_set_in_tuner_core)
1123                return;
1124        dev->std_set_in_tuner_core = 1;
1125        i2c_gate_ctrl(dev, 1);
1126        /* If we've never sent the standard in tuner core, do so now.
1127           We don't do this at device probe because we don't want to
1128           incur the cost of a firmware load */
1129        v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1130        v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1131        i2c_gate_ctrl(dev, 0);
1132}
1133
1134static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1135                             struct v4l2_format *format)
1136{
1137        int ret;
1138        int width = format->fmt.pix.width;
1139        int height = format->fmt.pix.height;
1140
1141        /* If they are demanding a format other than the one we support,
1142           bail out (tvtime asks for UYVY and then retries with YUYV) */
1143        if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1144                return -EINVAL;
1145
1146        /* format->fmt.pix.width only support 720 and height 480 */
1147        if (width != 720)
1148                width = 720;
1149        if (height != 480)
1150                height = 480;
1151
1152        format->fmt.pix.width = width;
1153        format->fmt.pix.height = height;
1154        format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1155        format->fmt.pix.bytesperline = width * 2;
1156        format->fmt.pix.sizeimage = width * height * 2;
1157        format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1158        format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1159        format->fmt.pix.priv = 0;
1160
1161        if (cmd == VIDIOC_TRY_FMT)
1162                return 0;
1163
1164        /* maybe set new image format, driver current only support 720*480 */
1165        dev->width = width;
1166        dev->height = height;
1167        dev->frame_size = width * height * 2;
1168        dev->field_size = width * height;
1169        dev->bytesperline = width * 2;
1170
1171        if (dev->stream_state == STREAM_ON) {
1172                dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1173                ret = au0828_stream_interrupt(dev);
1174                if (ret != 0) {
1175                        dprintk(1, "error interrupting video stream!\n");
1176                        return ret;
1177                }
1178        }
1179
1180        au0828_analog_stream_enable(dev);
1181
1182        return 0;
1183}
1184
1185static int vidioc_querycap(struct file *file, void  *priv,
1186                           struct v4l2_capability *cap)
1187{
1188        struct video_device *vdev = video_devdata(file);
1189        struct au0828_dev *dev = video_drvdata(file);
1190
1191        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1192                dev->std_set_in_tuner_core, dev->dev_state);
1193
1194        strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1195        strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1196        usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1197
1198        /* set the device capabilities */
1199        cap->device_caps = V4L2_CAP_AUDIO |
1200                V4L2_CAP_READWRITE |
1201                V4L2_CAP_STREAMING |
1202                V4L2_CAP_TUNER;
1203        if (vdev->vfl_type == VFL_TYPE_GRABBER)
1204                cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1205        else
1206                cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1207        cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1208                V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1209        return 0;
1210}
1211
1212static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1213                                        struct v4l2_fmtdesc *f)
1214{
1215        if (f->index)
1216                return -EINVAL;
1217
1218        dprintk(1, "%s called\n", __func__);
1219
1220        f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1221        strcpy(f->description, "Packed YUV2");
1222
1223        f->flags = 0;
1224        f->pixelformat = V4L2_PIX_FMT_UYVY;
1225
1226        return 0;
1227}
1228
1229static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1230                                        struct v4l2_format *f)
1231{
1232        struct au0828_dev *dev = video_drvdata(file);
1233
1234        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1235                dev->std_set_in_tuner_core, dev->dev_state);
1236
1237        f->fmt.pix.width = dev->width;
1238        f->fmt.pix.height = dev->height;
1239        f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1240        f->fmt.pix.bytesperline = dev->bytesperline;
1241        f->fmt.pix.sizeimage = dev->frame_size;
1242        f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1243        f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1244        f->fmt.pix.priv = 0;
1245        return 0;
1246}
1247
1248static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1249                                  struct v4l2_format *f)
1250{
1251        struct au0828_dev *dev = video_drvdata(file);
1252
1253        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1254                dev->std_set_in_tuner_core, dev->dev_state);
1255
1256        return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1257}
1258
1259static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1260                                struct v4l2_format *f)
1261{
1262        struct au0828_dev *dev = video_drvdata(file);
1263        int rc;
1264
1265        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1266                dev->std_set_in_tuner_core, dev->dev_state);
1267
1268        rc = check_dev(dev);
1269        if (rc < 0)
1270                return rc;
1271
1272        if (vb2_is_busy(&dev->vb_vidq)) {
1273                pr_info("%s queue busy\n", __func__);
1274                rc = -EBUSY;
1275                goto out;
1276        }
1277
1278        rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1279out:
1280        return rc;
1281}
1282
1283static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1284{
1285        struct au0828_dev *dev = video_drvdata(file);
1286
1287        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1288                dev->std_set_in_tuner_core, dev->dev_state);
1289
1290        if (norm == dev->std)
1291                return 0;
1292
1293        if (dev->streaming_users > 0)
1294                return -EBUSY;
1295
1296        dev->std = norm;
1297
1298        au0828_init_tuner(dev);
1299
1300        i2c_gate_ctrl(dev, 1);
1301
1302        /*
1303         * FIXME: when we support something other than 60Hz standards,
1304         * we are going to have to make the au0828 bridge adjust the size
1305         * of its capture buffer, which is currently hardcoded at 720x480
1306         */
1307
1308        v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1309
1310        i2c_gate_ctrl(dev, 0);
1311
1312        return 0;
1313}
1314
1315static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1316{
1317        struct au0828_dev *dev = video_drvdata(file);
1318
1319        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1320                dev->std_set_in_tuner_core, dev->dev_state);
1321
1322        *norm = dev->std;
1323        return 0;
1324}
1325
1326static int vidioc_enum_input(struct file *file, void *priv,
1327                                struct v4l2_input *input)
1328{
1329        struct au0828_dev *dev = video_drvdata(file);
1330        unsigned int tmp;
1331
1332        static const char *inames[] = {
1333                [AU0828_VMUX_UNDEFINED] = "Undefined",
1334                [AU0828_VMUX_COMPOSITE] = "Composite",
1335                [AU0828_VMUX_SVIDEO] = "S-Video",
1336                [AU0828_VMUX_CABLE] = "Cable TV",
1337                [AU0828_VMUX_TELEVISION] = "Television",
1338                [AU0828_VMUX_DVB] = "DVB",
1339        };
1340
1341        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1342                dev->std_set_in_tuner_core, dev->dev_state);
1343
1344        tmp = input->index;
1345
1346        if (tmp >= AU0828_MAX_INPUT)
1347                return -EINVAL;
1348        if (AUVI_INPUT(tmp).type == 0)
1349                return -EINVAL;
1350
1351        input->index = tmp;
1352        strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1353        if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1354            (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1355                input->type |= V4L2_INPUT_TYPE_TUNER;
1356                input->audioset = 1;
1357        } else {
1358                input->type |= V4L2_INPUT_TYPE_CAMERA;
1359                input->audioset = 2;
1360        }
1361
1362        input->std = dev->vdev.tvnorms;
1363
1364        return 0;
1365}
1366
1367static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1368{
1369        struct au0828_dev *dev = video_drvdata(file);
1370
1371        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1372                dev->std_set_in_tuner_core, dev->dev_state);
1373
1374        *i = dev->ctrl_input;
1375        return 0;
1376}
1377
1378static void au0828_s_input(struct au0828_dev *dev, int index)
1379{
1380        int i;
1381
1382        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1383                dev->std_set_in_tuner_core, dev->dev_state);
1384
1385        switch (AUVI_INPUT(index).type) {
1386        case AU0828_VMUX_SVIDEO:
1387                dev->input_type = AU0828_VMUX_SVIDEO;
1388                dev->ctrl_ainput = 1;
1389                break;
1390        case AU0828_VMUX_COMPOSITE:
1391                dev->input_type = AU0828_VMUX_COMPOSITE;
1392                dev->ctrl_ainput = 1;
1393                break;
1394        case AU0828_VMUX_TELEVISION:
1395                dev->input_type = AU0828_VMUX_TELEVISION;
1396                dev->ctrl_ainput = 0;
1397                break;
1398        default:
1399                dprintk(1, "unknown input type set [%d]\n",
1400                        AUVI_INPUT(index).type);
1401                return;
1402        }
1403
1404        dev->ctrl_input = index;
1405
1406        v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1407                        AUVI_INPUT(index).vmux, 0, 0);
1408
1409        for (i = 0; i < AU0828_MAX_INPUT; i++) {
1410                int enable = 0;
1411                if (AUVI_INPUT(i).audio_setup == NULL)
1412                        continue;
1413
1414                if (i == index)
1415                        enable = 1;
1416                else
1417                        enable = 0;
1418                if (enable) {
1419                        (AUVI_INPUT(i).audio_setup)(dev, enable);
1420                } else {
1421                        /* Make sure we leave it turned on if some
1422                           other input is routed to this callback */
1423                        if ((AUVI_INPUT(i).audio_setup) !=
1424                            ((AUVI_INPUT(index).audio_setup))) {
1425                                (AUVI_INPUT(i).audio_setup)(dev, enable);
1426                        }
1427                }
1428        }
1429
1430        v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1431                        AUVI_INPUT(index).amux, 0, 0);
1432}
1433
1434static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1435{
1436        struct au0828_dev *dev = video_drvdata(file);
1437        struct video_device *vfd = video_devdata(file);
1438
1439        dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1440                index);
1441        if (index >= AU0828_MAX_INPUT)
1442                return -EINVAL;
1443        if (AUVI_INPUT(index).type == 0)
1444                return -EINVAL;
1445
1446        if (dev->ctrl_input == index)
1447                return 0;
1448
1449        au0828_s_input(dev, index);
1450
1451        /*
1452         * Input has been changed. Disable the media source
1453         * associated with the old input and enable source
1454         * for the newly set input
1455         */
1456        v4l_disable_media_source(vfd);
1457        return v4l_enable_media_source(vfd);
1458}
1459
1460static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1461{
1462        if (a->index > 1)
1463                return -EINVAL;
1464
1465        dprintk(1, "%s called\n", __func__);
1466
1467        if (a->index == 0)
1468                strcpy(a->name, "Television");
1469        else
1470                strcpy(a->name, "Line in");
1471
1472        a->capability = V4L2_AUDCAP_STEREO;
1473        return 0;
1474}
1475
1476static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1477{
1478        struct au0828_dev *dev = video_drvdata(file);
1479
1480        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1481                dev->std_set_in_tuner_core, dev->dev_state);
1482
1483        a->index = dev->ctrl_ainput;
1484        if (a->index == 0)
1485                strcpy(a->name, "Television");
1486        else
1487                strcpy(a->name, "Line in");
1488
1489        a->capability = V4L2_AUDCAP_STEREO;
1490        return 0;
1491}
1492
1493static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1494{
1495        struct au0828_dev *dev = video_drvdata(file);
1496
1497        if (a->index != dev->ctrl_ainput)
1498                return -EINVAL;
1499
1500        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1501                dev->std_set_in_tuner_core, dev->dev_state);
1502        return 0;
1503}
1504
1505static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1506{
1507        struct au0828_dev *dev = video_drvdata(file);
1508        struct video_device *vfd = video_devdata(file);
1509        int ret;
1510
1511        if (t->index != 0)
1512                return -EINVAL;
1513
1514        ret = v4l_enable_media_source(vfd);
1515        if (ret)
1516                return ret;
1517
1518        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1519                dev->std_set_in_tuner_core, dev->dev_state);
1520
1521        strcpy(t->name, "Auvitek tuner");
1522
1523        au0828_init_tuner(dev);
1524        i2c_gate_ctrl(dev, 1);
1525        v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1526        i2c_gate_ctrl(dev, 0);
1527        return 0;
1528}
1529
1530static int vidioc_s_tuner(struct file *file, void *priv,
1531                                const struct v4l2_tuner *t)
1532{
1533        struct au0828_dev *dev = video_drvdata(file);
1534
1535        if (t->index != 0)
1536                return -EINVAL;
1537
1538        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1539                dev->std_set_in_tuner_core, dev->dev_state);
1540
1541        au0828_init_tuner(dev);
1542        i2c_gate_ctrl(dev, 1);
1543        v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1544        i2c_gate_ctrl(dev, 0);
1545
1546        dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1547                t->afc);
1548
1549        return 0;
1550
1551}
1552
1553static int vidioc_g_frequency(struct file *file, void *priv,
1554                                struct v4l2_frequency *freq)
1555{
1556        struct au0828_dev *dev = video_drvdata(file);
1557
1558        if (freq->tuner != 0)
1559                return -EINVAL;
1560        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1561                dev->std_set_in_tuner_core, dev->dev_state);
1562        freq->frequency = dev->ctrl_freq;
1563        return 0;
1564}
1565
1566static int vidioc_s_frequency(struct file *file, void *priv,
1567                                const struct v4l2_frequency *freq)
1568{
1569        struct au0828_dev *dev = video_drvdata(file);
1570        struct v4l2_frequency new_freq = *freq;
1571
1572        if (freq->tuner != 0)
1573                return -EINVAL;
1574
1575        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1576                dev->std_set_in_tuner_core, dev->dev_state);
1577
1578        au0828_init_tuner(dev);
1579        i2c_gate_ctrl(dev, 1);
1580
1581        v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1582        /* Get the actual set (and possibly clamped) frequency */
1583        v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1584        dev->ctrl_freq = new_freq.frequency;
1585
1586        i2c_gate_ctrl(dev, 0);
1587
1588        au0828_analog_stream_reset(dev);
1589
1590        return 0;
1591}
1592
1593
1594/* RAW VBI ioctls */
1595
1596static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1597                                struct v4l2_format *format)
1598{
1599        struct au0828_dev *dev = video_drvdata(file);
1600
1601        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1602                dev->std_set_in_tuner_core, dev->dev_state);
1603
1604        format->fmt.vbi.samples_per_line = dev->vbi_width;
1605        format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1606        format->fmt.vbi.offset = 0;
1607        format->fmt.vbi.flags = 0;
1608        format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1609
1610        format->fmt.vbi.count[0] = dev->vbi_height;
1611        format->fmt.vbi.count[1] = dev->vbi_height;
1612        format->fmt.vbi.start[0] = 21;
1613        format->fmt.vbi.start[1] = 284;
1614        memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1615
1616        return 0;
1617}
1618
1619static int vidioc_cropcap(struct file *file, void *priv,
1620                          struct v4l2_cropcap *cc)
1621{
1622        struct au0828_dev *dev = video_drvdata(file);
1623
1624        if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1625                return -EINVAL;
1626
1627        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1628                dev->std_set_in_tuner_core, dev->dev_state);
1629
1630        cc->bounds.left = 0;
1631        cc->bounds.top = 0;
1632        cc->bounds.width = dev->width;
1633        cc->bounds.height = dev->height;
1634
1635        cc->defrect = cc->bounds;
1636
1637        cc->pixelaspect.numerator = 54;
1638        cc->pixelaspect.denominator = 59;
1639
1640        return 0;
1641}
1642
1643#ifdef CONFIG_VIDEO_ADV_DEBUG
1644static int vidioc_g_register(struct file *file, void *priv,
1645                             struct v4l2_dbg_register *reg)
1646{
1647        struct au0828_dev *dev = video_drvdata(file);
1648
1649        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1650                dev->std_set_in_tuner_core, dev->dev_state);
1651
1652        reg->val = au0828_read(dev, reg->reg);
1653        reg->size = 1;
1654        return 0;
1655}
1656
1657static int vidioc_s_register(struct file *file, void *priv,
1658                             const struct v4l2_dbg_register *reg)
1659{
1660        struct au0828_dev *dev = video_drvdata(file);
1661
1662        dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1663                dev->std_set_in_tuner_core, dev->dev_state);
1664
1665        return au0828_writereg(dev, reg->reg, reg->val);
1666}
1667#endif
1668
1669static int vidioc_log_status(struct file *file, void *fh)
1670{
1671        struct video_device *vdev = video_devdata(file);
1672
1673        dprintk(1, "%s called\n", __func__);
1674
1675        v4l2_ctrl_log_status(file, fh);
1676        v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1677        return 0;
1678}
1679
1680void au0828_v4l2_suspend(struct au0828_dev *dev)
1681{
1682        struct urb *urb;
1683        int i;
1684
1685        pr_info("stopping V4L2\n");
1686
1687        if (dev->stream_state == STREAM_ON) {
1688                pr_info("stopping V4L2 active URBs\n");
1689                au0828_analog_stream_disable(dev);
1690                /* stop urbs */
1691                for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1692                        urb = dev->isoc_ctl.urb[i];
1693                        if (urb) {
1694                                if (!irqs_disabled())
1695                                        usb_kill_urb(urb);
1696                                else
1697                                        usb_unlink_urb(urb);
1698                        }
1699                }
1700        }
1701
1702        if (dev->vid_timeout_running)
1703                del_timer_sync(&dev->vid_timeout);
1704        if (dev->vbi_timeout_running)
1705                del_timer_sync(&dev->vbi_timeout);
1706}
1707
1708void au0828_v4l2_resume(struct au0828_dev *dev)
1709{
1710        int i, rc;
1711
1712        pr_info("restarting V4L2\n");
1713
1714        if (dev->stream_state == STREAM_ON) {
1715                au0828_stream_interrupt(dev);
1716                au0828_init_tuner(dev);
1717        }
1718
1719        if (dev->vid_timeout_running)
1720                mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1721        if (dev->vbi_timeout_running)
1722                mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1723
1724        /* If we were doing ac97 instead of i2s, it would go here...*/
1725        au0828_i2s_init(dev);
1726
1727        au0828_analog_stream_enable(dev);
1728
1729        if (!(dev->stream_state == STREAM_ON)) {
1730                au0828_analog_stream_reset(dev);
1731                /* submit urbs */
1732                for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1733                        rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1734                        if (rc) {
1735                                au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1736                                               i, rc);
1737                                au0828_uninit_isoc(dev);
1738                        }
1739                }
1740        }
1741}
1742
1743static const struct v4l2_file_operations au0828_v4l_fops = {
1744        .owner      = THIS_MODULE,
1745        .open       = au0828_v4l2_open,
1746        .release    = au0828_v4l2_close,
1747        .read       = vb2_fop_read,
1748        .poll       = vb2_fop_poll,
1749        .mmap       = vb2_fop_mmap,
1750        .unlocked_ioctl = video_ioctl2,
1751};
1752
1753static const struct v4l2_ioctl_ops video_ioctl_ops = {
1754        .vidioc_querycap            = vidioc_querycap,
1755        .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1756        .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1757        .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1758        .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1759        .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1760        .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1761        .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1762        .vidioc_enumaudio           = vidioc_enumaudio,
1763        .vidioc_g_audio             = vidioc_g_audio,
1764        .vidioc_s_audio             = vidioc_s_audio,
1765        .vidioc_cropcap             = vidioc_cropcap,
1766
1767        .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1768        .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1769        .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1770        .vidioc_querybuf            = vb2_ioctl_querybuf,
1771        .vidioc_qbuf                = vb2_ioctl_qbuf,
1772        .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1773        .vidioc_expbuf               = vb2_ioctl_expbuf,
1774
1775        .vidioc_s_std               = vidioc_s_std,
1776        .vidioc_g_std               = vidioc_g_std,
1777        .vidioc_enum_input          = vidioc_enum_input,
1778        .vidioc_g_input             = vidioc_g_input,
1779        .vidioc_s_input             = vidioc_s_input,
1780
1781        .vidioc_streamon            = vb2_ioctl_streamon,
1782        .vidioc_streamoff           = vb2_ioctl_streamoff,
1783
1784        .vidioc_g_tuner             = vidioc_g_tuner,
1785        .vidioc_s_tuner             = vidioc_s_tuner,
1786        .vidioc_g_frequency         = vidioc_g_frequency,
1787        .vidioc_s_frequency         = vidioc_s_frequency,
1788#ifdef CONFIG_VIDEO_ADV_DEBUG
1789        .vidioc_g_register          = vidioc_g_register,
1790        .vidioc_s_register          = vidioc_s_register,
1791#endif
1792        .vidioc_log_status          = vidioc_log_status,
1793        .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1794        .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1795};
1796
1797static const struct video_device au0828_video_template = {
1798        .fops                       = &au0828_v4l_fops,
1799        .release                    = video_device_release_empty,
1800        .ioctl_ops                  = &video_ioctl_ops,
1801        .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1802};
1803
1804static int au0828_vb2_setup(struct au0828_dev *dev)
1805{
1806        int rc;
1807        struct vb2_queue *q;
1808
1809        /* Setup Videobuf2 for Video capture */
1810        q = &dev->vb_vidq;
1811        q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1812        q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1813        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1814        q->drv_priv = dev;
1815        q->buf_struct_size = sizeof(struct au0828_buffer);
1816        q->ops = &au0828_video_qops;
1817        q->mem_ops = &vb2_vmalloc_memops;
1818
1819        rc = vb2_queue_init(q);
1820        if (rc < 0)
1821                return rc;
1822
1823        /* Setup Videobuf2 for VBI capture */
1824        q = &dev->vb_vbiq;
1825        q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1826        q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1827        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1828        q->drv_priv = dev;
1829        q->buf_struct_size = sizeof(struct au0828_buffer);
1830        q->ops = &au0828_vbi_qops;
1831        q->mem_ops = &vb2_vmalloc_memops;
1832
1833        rc = vb2_queue_init(q);
1834        if (rc < 0)
1835                return rc;
1836
1837        return 0;
1838}
1839
1840static void au0828_analog_create_entities(struct au0828_dev *dev)
1841{
1842#if defined(CONFIG_MEDIA_CONTROLLER)
1843        static const char * const inames[] = {
1844                [AU0828_VMUX_COMPOSITE] = "Composite",
1845                [AU0828_VMUX_SVIDEO] = "S-Video",
1846                [AU0828_VMUX_CABLE] = "Cable TV",
1847                [AU0828_VMUX_TELEVISION] = "Television",
1848                [AU0828_VMUX_DVB] = "DVB",
1849        };
1850        int ret, i;
1851
1852        /* Initialize Video and VBI pads */
1853        dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1854        ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1855        if (ret < 0)
1856                pr_err("failed to initialize video media entity!\n");
1857
1858        dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1859        ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1860        if (ret < 0)
1861                pr_err("failed to initialize vbi media entity!\n");
1862
1863        /* Create entities for each input connector */
1864        for (i = 0; i < AU0828_MAX_INPUT; i++) {
1865                struct media_entity *ent = &dev->input_ent[i];
1866
1867                if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1868                        break;
1869
1870                ent->name = inames[AUVI_INPUT(i).type];
1871                ent->flags = MEDIA_ENT_FL_CONNECTOR;
1872                dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1873
1874                switch (AUVI_INPUT(i).type) {
1875                case AU0828_VMUX_COMPOSITE:
1876                        ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1877                        break;
1878                case AU0828_VMUX_SVIDEO:
1879                        ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1880                        break;
1881                case AU0828_VMUX_CABLE:
1882                case AU0828_VMUX_TELEVISION:
1883                case AU0828_VMUX_DVB:
1884                default: /* Just to shut up a warning */
1885                        ent->function = MEDIA_ENT_F_CONN_RF;
1886                        break;
1887                }
1888
1889                ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1890                if (ret < 0)
1891                        pr_err("failed to initialize input pad[%d]!\n", i);
1892
1893                ret = media_device_register_entity(dev->media_dev, ent);
1894                if (ret < 0)
1895                        pr_err("failed to register input entity %d!\n", i);
1896        }
1897#endif
1898}
1899
1900/**************************************************************************/
1901
1902int au0828_analog_register(struct au0828_dev *dev,
1903                           struct usb_interface *interface)
1904{
1905        int retval = -ENOMEM;
1906        struct usb_host_interface *iface_desc;
1907        struct usb_endpoint_descriptor *endpoint;
1908        int i, ret;
1909
1910        dprintk(1, "au0828_analog_register called for intf#%d!\n",
1911                interface->cur_altsetting->desc.bInterfaceNumber);
1912
1913        /* No analog TV */
1914        if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1915                return 0;
1916
1917        /* set au0828 usb interface0 to as5 */
1918        retval = usb_set_interface(dev->usbdev,
1919                        interface->cur_altsetting->desc.bInterfaceNumber, 5);
1920        if (retval != 0) {
1921                pr_info("Failure setting usb interface0 to as5\n");
1922                return retval;
1923        }
1924
1925        /* Figure out which endpoint has the isoc interface */
1926        iface_desc = interface->cur_altsetting;
1927        for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1928                endpoint = &iface_desc->endpoint[i].desc;
1929                if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1930                     == USB_DIR_IN) &&
1931                    ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1932                     == USB_ENDPOINT_XFER_ISOC)) {
1933
1934                        /* we find our isoc in endpoint */
1935                        u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1936                        dev->max_pkt_size = (tmp & 0x07ff) *
1937                                (((tmp & 0x1800) >> 11) + 1);
1938                        dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1939                        dprintk(1,
1940                                "Found isoc endpoint 0x%02x, max size = %d\n",
1941                                dev->isoc_in_endpointaddr, dev->max_pkt_size);
1942                }
1943        }
1944        if (!(dev->isoc_in_endpointaddr)) {
1945                pr_info("Could not locate isoc endpoint\n");
1946                return -ENODEV;
1947        }
1948
1949        init_waitqueue_head(&dev->open);
1950        spin_lock_init(&dev->slock);
1951
1952        /* init video dma queues */
1953        INIT_LIST_HEAD(&dev->vidq.active);
1954        INIT_LIST_HEAD(&dev->vbiq.active);
1955
1956        timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
1957        timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
1958
1959        dev->width = NTSC_STD_W;
1960        dev->height = NTSC_STD_H;
1961        dev->field_size = dev->width * dev->height;
1962        dev->frame_size = dev->field_size << 1;
1963        dev->bytesperline = dev->width << 1;
1964        dev->vbi_width = 720;
1965        dev->vbi_height = 1;
1966        dev->ctrl_ainput = 0;
1967        dev->ctrl_freq = 960;
1968        dev->std = V4L2_STD_NTSC_M;
1969        /* Default input is TV Tuner */
1970        au0828_s_input(dev, 0);
1971
1972        mutex_init(&dev->vb_queue_lock);
1973        mutex_init(&dev->vb_vbi_queue_lock);
1974
1975        /* Fill the video capture device struct */
1976        dev->vdev = au0828_video_template;
1977        dev->vdev.v4l2_dev = &dev->v4l2_dev;
1978        dev->vdev.lock = &dev->lock;
1979        dev->vdev.queue = &dev->vb_vidq;
1980        dev->vdev.queue->lock = &dev->vb_queue_lock;
1981        strcpy(dev->vdev.name, "au0828a video");
1982
1983        /* Setup the VBI device */
1984        dev->vbi_dev = au0828_video_template;
1985        dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1986        dev->vbi_dev.lock = &dev->lock;
1987        dev->vbi_dev.queue = &dev->vb_vbiq;
1988        dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1989        strcpy(dev->vbi_dev.name, "au0828a vbi");
1990
1991        /* Init entities at the Media Controller */
1992        au0828_analog_create_entities(dev);
1993
1994        /* initialize videobuf2 stuff */
1995        retval = au0828_vb2_setup(dev);
1996        if (retval != 0) {
1997                dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1998                        retval);
1999                return -ENODEV;
2000        }
2001
2002        /* Register the v4l2 device */
2003        video_set_drvdata(&dev->vdev, dev);
2004        retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2005        if (retval != 0) {
2006                dprintk(1, "unable to register video device (error = %d).\n",
2007                        retval);
2008                ret = -ENODEV;
2009                goto err_reg_vdev;
2010        }
2011
2012        /* Register the vbi device */
2013        video_set_drvdata(&dev->vbi_dev, dev);
2014        retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2015        if (retval != 0) {
2016                dprintk(1, "unable to register vbi device (error = %d).\n",
2017                        retval);
2018                ret = -ENODEV;
2019                goto err_reg_vbi_dev;
2020        }
2021
2022#ifdef CONFIG_MEDIA_CONTROLLER
2023        retval = v4l2_mc_create_media_graph(dev->media_dev);
2024        if (retval) {
2025                pr_err("%s() au0282_dev_register failed to create graph\n",
2026                        __func__);
2027                ret = -ENODEV;
2028                goto err_reg_vbi_dev;
2029        }
2030#endif
2031
2032        dprintk(1, "%s completed!\n", __func__);
2033
2034        return 0;
2035
2036err_reg_vbi_dev:
2037        video_unregister_device(&dev->vdev);
2038err_reg_vdev:
2039        vb2_queue_release(&dev->vb_vidq);
2040        vb2_queue_release(&dev->vb_vbiq);
2041        return ret;
2042}
2043
2044