drivers/staging/tm6000/tm6000-video.c

   1 /*
   2  *   tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
   3  *
   4  *  Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
   5  *
   6  *  Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
   7  *      - Fixed module load/unload
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation version 2
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22 #include <linux/module.h>
  23 #include <linux/delay.h>
  24 #include <linux/errno.h>
  25 #include <linux/fs.h>
  26 #include <linux/kernel.h>
  27 #include <linux/slab.h>
  28 #include <linux/mm.h>
  29 #include <linux/ioport.h>
  30 #include <linux/init.h>
  31 #include <linux/sched.h>
  32 #include <linux/random.h>
  33 #include <linux/version.h>
  34 #include <linux/usb.h>
  35 #include <linux/videodev2.h>
  36 #include <media/v4l2-ioctl.h>
  37 #include <media/tuner.h>
  38 #include <linux/interrupt.h>
  39 #include <linux/kthread.h>
  40 #include <linux/highmem.h>
  41 #include <linux/freezer.h>
  42
  43 #include "tm6000-regs.h"
  44 #include "tm6000.h"
  45
  46 #define BUFFER_TIMEOUT     msecs_to_jiffies(2000)  /* 2 seconds */
  47
  48 /* Limits minimum and default number of buffers */
  49 #define TM6000_MIN_BUF 4
  50 #define TM6000_DEF_BUF 8
  51
  52 #define TM6000_MAX_ISO_PACKETS  46      /* Max number of ISO packets */
  53
  54 /* Declare static vars that will be used as parameters */
  55 static unsigned int vid_limit = 16;     /* Video memory limit, in Mb */
  56 static int video_nr = -1;               /* /dev/videoN, -1 for autodetect */
  57 static int radio_nr = -1;               /* /dev/radioN, -1 for autodetect */
  58
  59 /* Debug level */
  60 int tm6000_debug;
  61 EXPORT_SYMBOL_GPL(tm6000_debug);
  62
  63 static const struct v4l2_queryctrl no_ctrl = {
  64         .name  = "42",
  65         .flags = V4L2_CTRL_FLAG_DISABLED,
  66 };
  67
  68 /* supported controls */
  69 static struct v4l2_queryctrl tm6000_qctrl[] = {
  70         {
  71                 .id            = V4L2_CID_BRIGHTNESS,
  72                 .type          = V4L2_CTRL_TYPE_INTEGER,
  73                 .name          = "Brightness",
  74                 .minimum       = 0,
  75                 .maximum       = 255,
  76                 .step          = 1,
  77                 .default_value = 54,
  78                 .flags         = 0,
  79         }, {
  80                 .id            = V4L2_CID_CONTRAST,
  81                 .type          = V4L2_CTRL_TYPE_INTEGER,
  82                 .name          = "Contrast",
  83                 .minimum       = 0,
  84                 .maximum       = 255,
  85                 .step          = 0x1,
  86                 .default_value = 119,
  87                 .flags         = 0,
  88         }, {
  89                 .id            = V4L2_CID_SATURATION,
  90                 .type          = V4L2_CTRL_TYPE_INTEGER,
  91                 .name          = "Saturation",
  92                 .minimum       = 0,
  93                 .maximum       = 255,
  94                 .step          = 0x1,
  95                 .default_value = 112,
  96                 .flags         = 0,
  97         }, {
  98                 .id            = V4L2_CID_HUE,
  99                 .type          = V4L2_CTRL_TYPE_INTEGER,
 100                 .name          = "Hue",
 101                 .minimum       = -128,
 102                 .maximum       = 127,
 103                 .step          = 0x1,
 104                 .default_value = 0,
 105                 .flags         = 0,
 106         },
 107                 /* --- audio --- */
 108         {
 109                 .id            = V4L2_CID_AUDIO_MUTE,
 110                 .name          = "Mute",
 111                 .minimum       = 0,
 112                 .maximum       = 1,
 113                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 114         }, {
 115                 .id            = V4L2_CID_AUDIO_VOLUME,
 116                 .name          = "Volume",
 117                 .minimum       = -15,
 118                 .maximum       = 15,
 119                 .step          = 1,
 120                 .default_value = 0,
 121                 .type          = V4L2_CTRL_TYPE_INTEGER,
 122         }
 123 };
 124
 125 static const unsigned int CTRLS = ARRAY_SIZE(tm6000_qctrl);
 126 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
 127
 128 static struct tm6000_fmt format[] = {
 129         {
 130                 .name     = "4:2:2, packed, YVY2",
 131                 .fourcc   = V4L2_PIX_FMT_YUYV,
 132                 .depth    = 16,
 133         }, {
 134                 .name     = "4:2:2, packed, UYVY",
 135                 .fourcc   = V4L2_PIX_FMT_UYVY,
 136                 .depth    = 16,
 137         }, {
 138                 .name     = "A/V + VBI mux packet",
 139                 .fourcc   = V4L2_PIX_FMT_TM6000,
 140                 .depth    = 16,
 141         }
 142 };
 143
 144 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
 145 {
 146         unsigned int i;
 147
 148         for (i = 0; i < CTRLS; i++)
 149                 if (tm6000_qctrl[i].id == id)
 150                         return tm6000_qctrl+i;
 151         return NULL;
 152 }
 153
 154 /* ------------------------------------------------------------------
 155  *      DMA and thread functions
 156  * ------------------------------------------------------------------
 157  */
 158
 159 #define norm_maxw(a) 720
 160 #define norm_maxh(a) 576
 161
 162 #define norm_minw(a) norm_maxw(a)
 163 #define norm_minh(a) norm_maxh(a)
 164
 165 /*
 166  * video-buf generic routine to get the next available buffer
 167  */
 168 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
 169                                struct tm6000_buffer   **buf)
 170 {
 171         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 172         char *outp;
 173
 174         if (list_empty(&dma_q->active)) {
 175                 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
 176                 *buf = NULL;
 177                 return;
 178         }
 179
 180         *buf = list_entry(dma_q->active.next,
 181                         struct tm6000_buffer, vb.queue);
 182
 183         if (!buf)
 184                 return;
 185
 186         /* Cleans up buffer - Useful for testing for frame/URB loss */
 187         outp = videobuf_to_vmalloc(&(*buf)->vb);
 188
 189         return;
 190 }
 191
 192 /*
 193  * Announces that a buffer were filled and request the next
 194  */
 195 static inline void buffer_filled(struct tm6000_core *dev,
 196                                  struct tm6000_dmaqueue *dma_q,
 197                                  struct tm6000_buffer *buf)
 198 {
 199         /* Advice that buffer was filled */
 200         dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
 201         buf->vb.state = VIDEOBUF_DONE;
 202         buf->vb.field_count++;
 203         do_gettimeofday(&buf->vb.ts);
 204
 205         list_del(&buf->vb.queue);
 206         wake_up(&buf->vb.done);
 207 }
 208
 209 const char *tm6000_msg_type[] = {
 210         "unknown(0)",   /* 0 */
 211         "video",        /* 1 */
 212         "audio",        /* 2 */
 213         "vbi",          /* 3 */
 214         "pts",          /* 4 */
 215         "err",          /* 5 */
 216         "unknown(6)",   /* 6 */
 217         "unknown(7)",   /* 7 */
 218 };
 219
 220 /*
 221  * Identify the tm5600/6000 buffer header type and properly handles
 222  */
 223 static int copy_streams(u8 *data, unsigned long len,
 224                         struct urb *urb)
 225 {
 226         struct tm6000_dmaqueue  *dma_q = urb->context;
 227         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 228         u8 *ptr = data, *endp = data+len, c;
 229         unsigned long header = 0;
 230         int rc = 0;
 231         unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
 232         struct tm6000_buffer *vbuf = NULL;
 233         char *voutp = NULL;
 234         unsigned int linewidth;
 235
 236         if (!dev->radio) {
 237                 /* get video buffer */
 238                 get_next_buf(dma_q, &vbuf);
 239
 240                 if (!vbuf)
 241                         return rc;
 242                 voutp = videobuf_to_vmalloc(&vbuf->vb);
 243
 244                 if (!voutp)
 245                         return 0;
 246         }
 247
 248         for (ptr = data; ptr < endp;) {
 249                 if (!dev->isoc_ctl.cmd) {
 250                         /* Header */
 251                         if (dev->isoc_ctl.tmp_buf_len > 0) {
 252                                 /* from last urb or packet */
 253                                 header = dev->isoc_ctl.tmp_buf;
 254                                 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
 255                                         memcpy((u8 *)&header +
 256                                                 dev->isoc_ctl.tmp_buf_len,
 257                                                 ptr,
 258                                                 4 - dev->isoc_ctl.tmp_buf_len);
 259                                         ptr += 4 - dev->isoc_ctl.tmp_buf_len;
 260                                 }
 261                                 dev->isoc_ctl.tmp_buf_len = 0;
 262                         } else {
 263                                 if (ptr + 3 >= endp) {
 264                                         /* have incomplete header */
 265                                         dev->isoc_ctl.tmp_buf_len = endp - ptr;
 266                                         memcpy(&dev->isoc_ctl.tmp_buf, ptr,
 267                                                 dev->isoc_ctl.tmp_buf_len);
 268                                         return rc;
 269                                 }
 270                                 /* Seek for sync */
 271                                 for (; ptr < endp - 3; ptr++) {
 272                                         if (*(ptr + 3) == 0x47)
 273                                                 break;
 274                                 }
 275                                 /* Get message header */
 276                                 header = *(unsigned long *)ptr;
 277                                 ptr += 4;
 278                         }
 279
 280                         /* split the header fields */
 281                         c = (header >> 24) & 0xff;
 282                         size = ((header & 0x7e) << 1);
 283                         if (size > 0)
 284                                 size -= 4;
 285                         block = (header >> 7) & 0xf;
 286                         field = (header >> 11) & 0x1;
 287                         line  = (header >> 12) & 0x1ff;
 288                         cmd   = (header >> 21) & 0x7;
 289                         /* Validates haeder fields */
 290                         if (size > TM6000_URB_MSG_LEN)
 291                                 size = TM6000_URB_MSG_LEN;
 292                         pktsize = TM6000_URB_MSG_LEN;
 293                         /* calculate position in buffer
 294                          * and change the buffer
 295                          */
 296                         switch (cmd) {
 297                         case TM6000_URB_MSG_VIDEO:
 298                                 if (!dev->radio) {
 299                                         if ((dev->isoc_ctl.vfield != field) &&
 300                                                 (field == 1)) {
 301                                         /* Announces that a new buffer
 302                                          * were filled
 303                                          */
 304                                                 buffer_filled(dev, dma_q, vbuf);
 305                                                 dprintk(dev, V4L2_DEBUG_ISOC,
 306                                                         "new buffer filled\n");
 307                                                 get_next_buf(dma_q, &vbuf);
 308                                                 if (!vbuf)
 309                                                         return rc;
 310                                                 voutp = videobuf_to_vmalloc(&vbuf->vb);
 311                                                 if (!voutp)
 312                                                         return rc;
 313                                                 memset(voutp, 0, vbuf->vb.size);
 314                                         }
 315                                         linewidth = vbuf->vb.width << 1;
 316                                         pos = ((line << 1) - field - 1) *
 317                                         linewidth + block * TM6000_URB_MSG_LEN;
 318                                         /* Don't allow to write out of the buffer */
 319                                         if (pos + size > vbuf->vb.size)
 320                                                 cmd = TM6000_URB_MSG_ERR;
 321                                         dev->isoc_ctl.vfield = field;
 322                                 }
 323                                 break;
 324                         case TM6000_URB_MSG_VBI:
 325                                 break;
 326                         case TM6000_URB_MSG_AUDIO:
 327                         case TM6000_URB_MSG_PTS:
 328                                 size = pktsize;         /* Size is always 180 bytes */
 329                                 break;
 330                         }
 331                 } else {
 332                         /* Continue the last copy */
 333                         cmd = dev->isoc_ctl.cmd;
 334                         size = dev->isoc_ctl.size;
 335                         pos = dev->isoc_ctl.pos;
 336                         pktsize = dev->isoc_ctl.pktsize;
 337                 }
 338                 cpysize = (endp - ptr > size) ? size : endp - ptr;
 339                 if (cpysize) {
 340                         /* copy data in different buffers */
 341                         switch (cmd) {
 342                         case TM6000_URB_MSG_VIDEO:
 343                                 /* Fills video buffer */
 344                                 if (vbuf)
 345                                         memcpy(&voutp[pos], ptr, cpysize);
 346                                 break;
 347                         case TM6000_URB_MSG_AUDIO:
 348                                 /* Need some code to copy audio buffer */
 349                                 if (dev->fourcc == V4L2_PIX_FMT_YUYV) {
 350                                         /* Swap word bytes */
 351                                         int i;
 352
 353                                         for (i = 0; i < cpysize; i += 2)
 354                                                 swab16s((u16 *)(ptr + i));
 355                                 }
 356                                 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
 357                                 break;
 358                         case TM6000_URB_MSG_VBI:
 359                                 /* Need some code to copy vbi buffer */
 360                                 break;
 361                         case TM6000_URB_MSG_PTS:
 362                                 /* Need some code to copy pts */
 363                                 break;
 364                         }
 365                 }
 366                 if (ptr + pktsize > endp) {
 367                         /* End of URB packet, but cmd processing is not
 368                          * complete. Preserve the state for a next packet
 369                          */
 370                         dev->isoc_ctl.pos = pos + cpysize;
 371                         dev->isoc_ctl.size = size - cpysize;
 372                         dev->isoc_ctl.cmd = cmd;
 373                         dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
 374                         ptr += endp - ptr;
 375                 } else {
 376                         dev->isoc_ctl.cmd = 0;
 377                         ptr += pktsize;
 378                 }
 379         }
 380         return 0;
 381 }
 382
 383 /*
 384  * Identify the tm5600/6000 buffer header type and properly handles
 385  */
 386 static int copy_multiplexed(u8 *ptr, unsigned long len,
 387                         struct urb *urb)
 388 {
 389         struct tm6000_dmaqueue  *dma_q = urb->context;
 390         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 391         unsigned int pos = dev->isoc_ctl.pos, cpysize;
 392         int rc = 1;
 393         struct tm6000_buffer *buf;
 394         char *outp = NULL;
 395
 396         get_next_buf(dma_q, &buf);
 397         if (buf)
 398                 outp = videobuf_to_vmalloc(&buf->vb);
 399
 400         if (!outp)
 401                 return 0;
 402
 403         while (len > 0) {
 404                 cpysize = min(len, buf->vb.size-pos);
 405                 memcpy(&outp[pos], ptr, cpysize);
 406                 pos += cpysize;
 407                 ptr += cpysize;
 408                 len -= cpysize;
 409                 if (pos >= buf->vb.size) {
 410                         pos = 0;
 411                         /* Announces that a new buffer were filled */
 412                         buffer_filled(dev, dma_q, buf);
 413                         dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
 414                         get_next_buf(dma_q, &buf);
 415                         if (!buf)
 416                                 break;
 417                         outp = videobuf_to_vmalloc(&(buf->vb));
 418                         if (!outp)
 419                                 return rc;
 420                         pos = 0;
 421                 }
 422         }
 423
 424         dev->isoc_ctl.pos = pos;
 425         return rc;
 426 }
 427
 428 static inline void print_err_status(struct tm6000_core *dev,
 429                                      int packet, int status)
 430 {
 431         char *errmsg = "Unknown";
 432
 433         switch (status) {
 434         case -ENOENT:
 435                 errmsg = "unlinked synchronuously";
 436                 break;
 437         case -ECONNRESET:
 438                 errmsg = "unlinked asynchronuously";
 439                 break;
 440         case -ENOSR:
 441                 errmsg = "Buffer error (overrun)";
 442                 break;
 443         case -EPIPE:
 444                 errmsg = "Stalled (device not responding)";
 445                 break;
 446         case -EOVERFLOW:
 447                 errmsg = "Babble (bad cable?)";
 448                 break;
 449         case -EPROTO:
 450                 errmsg = "Bit-stuff error (bad cable?)";
 451                 break;
 452         case -EILSEQ:
 453                 errmsg = "CRC/Timeout (could be anything)";
 454                 break;
 455         case -ETIME:
 456                 errmsg = "Device does not respond";
 457                 break;
 458         }
 459         if (packet < 0) {
 460                 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
 461                         status, errmsg);
 462         } else {
 463                 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
 464                         packet, status, errmsg);
 465         }
 466 }
 467
 468
 469 /*
 470  * Controls the isoc copy of each urb packet
 471  */
 472 static inline int tm6000_isoc_copy(struct urb *urb)
 473 {
 474         struct tm6000_dmaqueue  *dma_q = urb->context;
 475         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 476         int i, len = 0, rc = 1, status;
 477         char *p;
 478
 479         if (urb->status < 0) {
 480                 print_err_status(dev, -1, urb->status);
 481                 return 0;
 482         }
 483
 484         for (i = 0; i < urb->number_of_packets; i++) {
 485                 status = urb->iso_frame_desc[i].status;
 486
 487                 if (status < 0) {
 488                         print_err_status(dev, i, status);
 489                         continue;
 490                 }
 491
 492                 len = urb->iso_frame_desc[i].actual_length;
 493
 494                 if (len > 0) {
 495                         p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 496                         if (!urb->iso_frame_desc[i].status) {
 497                                 if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
 498                                         rc = copy_multiplexed(p, len, urb);
 499                                         if (rc <= 0)
 500                                                 return rc;
 501                                 } else {
 502                                         copy_streams(p, len, urb);
 503                                 }
 504                         }
 505                 }
 506         }
 507         return rc;
 508 }
 509
 510 /* ------------------------------------------------------------------
 511  *      URB control
 512  * ------------------------------------------------------------------
 513  */
 514
 515 /*
 516  * IRQ callback, called by URB callback
 517  */
 518 static void tm6000_irq_callback(struct urb *urb)
 519 {
 520         struct tm6000_dmaqueue  *dma_q = urb->context;
 521         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 522         int i;
 523
 524         if (!dev)
 525                 return;
 526
 527         spin_lock(&dev->slock);
 528         tm6000_isoc_copy(urb);
 529         spin_unlock(&dev->slock);
 530
 531         /* Reset urb buffers */
 532         for (i = 0; i < urb->number_of_packets; i++) {
 533                 urb->iso_frame_desc[i].status = 0;
 534                 urb->iso_frame_desc[i].actual_length = 0;
 535         }
 536
 537         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 538         if (urb->status)
 539                 tm6000_err("urb resubmit failed (error=%i)\n",
 540                         urb->status);
 541 }
 542
 543 /*
 544  * Stop and Deallocate URBs
 545  */
 546 static void tm6000_uninit_isoc(struct tm6000_core *dev)
 547 {
 548         struct urb *urb;
 549         int i;
 550
 551         dev->isoc_ctl.buf = NULL;
 552         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 553                 urb = dev->isoc_ctl.urb[i];
 554                 if (urb) {
 555                         usb_kill_urb(urb);
 556                         usb_unlink_urb(urb);
 557                         if (dev->isoc_ctl.transfer_buffer[i]) {
 558                                 usb_free_coherent(dev->udev,
 559                                                 urb->transfer_buffer_length,
 560                                                 dev->isoc_ctl.transfer_buffer[i],
 561                                                 urb->transfer_dma);
 562                         }
 563                         usb_free_urb(urb);
 564                         dev->isoc_ctl.urb[i] = NULL;
 565                 }
 566                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 567         }
 568
 569         kfree(dev->isoc_ctl.urb);
 570         kfree(dev->isoc_ctl.transfer_buffer);
 571
 572         dev->isoc_ctl.urb = NULL;
 573         dev->isoc_ctl.transfer_buffer = NULL;
 574         dev->isoc_ctl.num_bufs = 0;
 575 }
 576
 577 /*
 578  * Allocate URBs and start IRQ
 579  */
 580 static int tm6000_prepare_isoc(struct tm6000_core *dev)
 581 {
 582         struct tm6000_dmaqueue *dma_q = &dev->vidq;
 583         int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
 584         struct urb *urb;
 585
 586         /* De-allocates all pending stuff */
 587         tm6000_uninit_isoc(dev);
 588         /* Stop interrupt USB pipe */
 589         tm6000_ir_int_stop(dev);
 590
 591         usb_set_interface(dev->udev,
 592                           dev->isoc_in.bInterfaceNumber,
 593                           dev->isoc_in.bAlternateSetting);
 594
 595         /* Start interrupt USB pipe */
 596         tm6000_ir_int_start(dev);
 597
 598         pipe = usb_rcvisocpipe(dev->udev,
 599                                dev->isoc_in.endp->desc.bEndpointAddress &
 600                                USB_ENDPOINT_NUMBER_MASK);
 601
 602         size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
 603
 604         if (size > dev->isoc_in.maxsize)
 605                 size = dev->isoc_in.maxsize;
 606
 607         dev->isoc_ctl.max_pkt_size = size;
 608
 609         max_packets = TM6000_MAX_ISO_PACKETS;
 610         sb_size = max_packets * size;
 611
 612         dev->isoc_ctl.num_bufs = num_bufs;
 613
 614         dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
 615         if (!dev->isoc_ctl.urb) {
 616                 tm6000_err("cannot alloc memory for usb buffers\n");
 617                 return -ENOMEM;
 618         }
 619
 620         dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
 621                                    GFP_KERNEL);
 622         if (!dev->isoc_ctl.transfer_buffer) {
 623                 tm6000_err("cannot allocate memory for usbtransfer\n");
 624                 kfree(dev->isoc_ctl.urb);
 625                 return -ENOMEM;
 626         }
 627
 628         dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
 629                     " (%d bytes) of %d bytes each to handle %u size\n",
 630                     max_packets, num_bufs, sb_size,
 631                     dev->isoc_in.maxsize, size);
 632
 633         /* allocate urbs and transfer buffers */
 634         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 635                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 636                 if (!urb) {
 637                         tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
 638                         tm6000_uninit_isoc(dev);
 639                         usb_free_urb(urb);
 640                         return -ENOMEM;
 641                 }
 642                 dev->isoc_ctl.urb[i] = urb;
 643
 644                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
 645                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 646                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 647                         tm6000_err("unable to allocate %i bytes for transfer"
 648                                         " buffer %i%s\n",
 649                                         sb_size, i,
 650                                         in_interrupt() ? " while in int" : "");
 651                         tm6000_uninit_isoc(dev);
 652                         return -ENOMEM;
 653                 }
 654                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 655
 656                 usb_fill_bulk_urb(urb, dev->udev, pipe,
 657                                   dev->isoc_ctl.transfer_buffer[i], sb_size,
 658                                   tm6000_irq_callback, dma_q);
 659                 urb->interval = dev->isoc_in.endp->desc.bInterval;
 660                 urb->number_of_packets = max_packets;
 661                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 662
 663                 for (j = 0; j < max_packets; j++) {
 664                         urb->iso_frame_desc[j].offset = size * j;
 665                         urb->iso_frame_desc[j].length = size;
 666                 }
 667         }
 668
 669         return 0;
 670 }
 671
 672 static int tm6000_start_thread(struct tm6000_core *dev)
 673 {
 674         struct tm6000_dmaqueue *dma_q = &dev->vidq;
 675         int i;
 676
 677         dma_q->frame = 0;
 678         dma_q->ini_jiffies = jiffies;
 679
 680         init_waitqueue_head(&dma_q->wq);
 681
 682         /* submit urbs and enables IRQ */
 683         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 684                 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 685                 if (rc) {
 686                         tm6000_err("submit of urb %i failed (error=%i)\n", i,
 687                                    rc);
 688                         tm6000_uninit_isoc(dev);
 689                         return rc;
 690                 }
 691         }
 692
 693         return 0;
 694 }
 695
 696 /* ------------------------------------------------------------------
 697  *      Videobuf operations
 698  * ------------------------------------------------------------------
 699  */
 700
 701 static int
 702 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 703 {
 704         struct tm6000_fh *fh = vq->priv_data;
 705
 706         *size = fh->fmt->depth * fh->width * fh->height >> 3;
 707         if (0 == *count)
 708                 *count = TM6000_DEF_BUF;
 709
 710         if (*count < TM6000_MIN_BUF)
 711                 *count = TM6000_MIN_BUF;
 712
 713         while (*size * *count > vid_limit * 1024 * 1024)
 714                 (*count)--;
 715
 716         return 0;
 717 }
 718
 719 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
 720 {
 721         struct tm6000_fh *fh = vq->priv_data;
 722         struct tm6000_core   *dev = fh->dev;
 723         unsigned long flags;
 724
 725         if (in_interrupt())
 726                 BUG();
 727
 728         /* We used to wait for the buffer to finish here, but this didn't work
 729            because, as we were keeping the state as VIDEOBUF_QUEUED,
 730            videobuf_queue_cancel marked it as finished for us.
 731            (Also, it could wedge forever if the hardware was misconfigured.)
 732
 733            This should be safe; by the time we get here, the buffer isn't
 734            queued anymore. If we ever start marking the buffers as
 735            VIDEOBUF_ACTIVE, it won't be, though.
 736         */
 737         spin_lock_irqsave(&dev->slock, flags);
 738         if (dev->isoc_ctl.buf == buf)
 739                 dev->isoc_ctl.buf = NULL;
 740         spin_unlock_irqrestore(&dev->slock, flags);
 741
 742         videobuf_vmalloc_free(&buf->vb);
 743         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 744 }
 745
 746 static int
 747 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 748                                                 enum v4l2_field field)
 749 {
 750         struct tm6000_fh     *fh  = vq->priv_data;
 751         struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
 752         struct tm6000_core   *dev = fh->dev;
 753         int rc = 0, urb_init = 0;
 754
 755         BUG_ON(NULL == fh->fmt);
 756
 757
 758         /* FIXME: It assumes depth=2 */
 759         /* The only currently supported format is 16 bits/pixel */
 760         buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
 761         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 762                 return -EINVAL;
 763
 764         if (buf->fmt       != fh->fmt    ||
 765             buf->vb.width  != fh->width  ||
 766             buf->vb.height != fh->height ||
 767             buf->vb.field  != field) {
 768                 buf->fmt       = fh->fmt;
 769                 buf->vb.width  = fh->width;
 770                 buf->vb.height = fh->height;
 771                 buf->vb.field  = field;
 772                 buf->vb.state = VIDEOBUF_NEEDS_INIT;
 773         }
 774
 775         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 776                 if (0 != (rc = videobuf_iolock(vq, &buf->vb, NULL)))
 777                         goto fail;
 778                 urb_init = 1;
 779         }
 780
 781         if (!dev->isoc_ctl.num_bufs)
 782                 urb_init = 1;
 783
 784         if (urb_init) {
 785                 rc = tm6000_prepare_isoc(dev);
 786                 if (rc < 0)
 787                         goto fail;
 788
 789                 rc = tm6000_start_thread(dev);
 790                 if (rc < 0)
 791                         goto fail;
 792
 793         }
 794
 795         buf->vb.state = VIDEOBUF_PREPARED;
 796         return 0;
 797
 798 fail:
 799         free_buffer(vq, buf);
 800         return rc;
 801 }
 802
 803 static void
 804 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 805 {
 806         struct tm6000_buffer    *buf     = container_of(vb, struct tm6000_buffer, vb);
 807         struct tm6000_fh        *fh      = vq->priv_data;
 808         struct tm6000_core      *dev     = fh->dev;
 809         struct tm6000_dmaqueue  *vidq    = &dev->vidq;
 810
 811         buf->vb.state = VIDEOBUF_QUEUED;
 812         list_add_tail(&buf->vb.queue, &vidq->active);
 813 }
 814
 815 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 816 {
 817         struct tm6000_buffer   *buf  = container_of(vb, struct tm6000_buffer, vb);
 818
 819         free_buffer(vq, buf);
 820 }
 821
 822 static struct videobuf_queue_ops tm6000_video_qops = {
 823         .buf_setup      = buffer_setup,
 824         .buf_prepare    = buffer_prepare,
 825         .buf_queue      = buffer_queue,
 826         .buf_release    = buffer_release,
 827 };
 828
 829 /* ------------------------------------------------------------------
 830  *      IOCTL handling
 831  * ------------------------------------------------------------------
 832  */
 833
 834 static bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
 835 {
 836         /* Is the current fh handling it? if so, that's OK */
 837         if (dev->resources == fh && dev->is_res_read)
 838                 return true;
 839
 840         return false;
 841 }
 842
 843 static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
 844 {
 845         /* Is the current fh handling it? if so, that's OK */
 846         if (dev->resources == fh)
 847                 return true;
 848
 849         return false;
 850 }
 851
 852 static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
 853                    bool is_res_read)
 854 {
 855         /* Is the current fh handling it? if so, that's OK */
 856         if (dev->resources == fh && dev->is_res_read == is_res_read)
 857                 return true;
 858
 859         /* is it free? */
 860         if (dev->resources)
 861                 return false;
 862
 863         /* grab it */
 864         dev->resources = fh;
 865         dev->is_res_read = is_res_read;
 866         dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
 867         return true;
 868 }
 869
 870 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
 871 {
 872         /* Is the current fh handling it? if so, that's OK */
 873         if (dev->resources != fh)
 874                 return;
 875
 876         dev->resources = NULL;
 877         dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
 878 }
 879
 880 /* ------------------------------------------------------------------
 881  *      IOCTL vidioc handling
 882  * ------------------------------------------------------------------
 883  */
 884 static int vidioc_querycap(struct file *file, void  *priv,
 885                                         struct v4l2_capability *cap)
 886 {
 887         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 888
 889         strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
 890         strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
 891         cap->version = TM6000_VERSION;
 892         cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
 893                                 V4L2_CAP_STREAMING     |
 894                                 V4L2_CAP_AUDIO         |
 895                                 V4L2_CAP_READWRITE;
 896
 897         if (dev->tuner_type != TUNER_ABSENT)
 898                 cap->capabilities |= V4L2_CAP_TUNER;
 899
 900         return 0;
 901 }
 902
 903 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
 904                                         struct v4l2_fmtdesc *f)
 905 {
 906         if (unlikely(f->index >= ARRAY_SIZE(format)))
 907                 return -EINVAL;
 908
 909         strlcpy(f->description, format[f->index].name, sizeof(f->description));
 910         f->pixelformat = format[f->index].fourcc;
 911         return 0;
 912 }
 913
 914 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 915                                         struct v4l2_format *f)
 916 {
 917         struct tm6000_fh  *fh = priv;
 918
 919         f->fmt.pix.width        = fh->width;
 920         f->fmt.pix.height       = fh->height;
 921         f->fmt.pix.field        = fh->vb_vidq.field;
 922         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 923         f->fmt.pix.bytesperline =
 924                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 925         f->fmt.pix.sizeimage =
 926                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 927
 928         return 0;
 929 }
 930
 931 static struct tm6000_fmt *format_by_fourcc(unsigned int fourcc)
 932 {
 933         unsigned int i;
 934
 935         for (i = 0; i < ARRAY_SIZE(format); i++)
 936                 if (format[i].fourcc == fourcc)
 937                         return format+i;
 938         return NULL;
 939 }
 940
 941 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 942                         struct v4l2_format *f)
 943 {
 944         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 945         struct tm6000_fmt *fmt;
 946         enum v4l2_field field;
 947
 948         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 949         if (NULL == fmt) {
 950                 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
 951                                 " invalid.\n", f->fmt.pix.pixelformat);
 952                 return -EINVAL;
 953         }
 954
 955         field = f->fmt.pix.field;
 956
 957         if (field == V4L2_FIELD_ANY)
 958                 field = V4L2_FIELD_SEQ_TB;
 959         else if (V4L2_FIELD_INTERLACED != field) {
 960                 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
 961                 return -EINVAL;
 962         }
 963
 964         tm6000_get_std_res(dev);
 965
 966         f->fmt.pix.width  = dev->width;
 967         f->fmt.pix.height = dev->height;
 968
 969         f->fmt.pix.width &= ~0x01;
 970
 971         f->fmt.pix.field = field;
 972
 973         f->fmt.pix.bytesperline =
 974                 (f->fmt.pix.width * fmt->depth) >> 3;
 975         f->fmt.pix.sizeimage =
 976                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 977
 978         return 0;
 979 }
 980
 981 /*FIXME: This seems to be generic enough to be at videodev2 */
 982 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 983                                         struct v4l2_format *f)
 984 {
 985         struct tm6000_fh  *fh = priv;
 986         struct tm6000_core *dev = fh->dev;
 987         int ret = vidioc_try_fmt_vid_cap(file, fh, f);
 988         if (ret < 0)
 989                 return ret;
 990
 991         fh->fmt           = format_by_fourcc(f->fmt.pix.pixelformat);
 992         fh->width         = f->fmt.pix.width;
 993         fh->height        = f->fmt.pix.height;
 994         fh->vb_vidq.field = f->fmt.pix.field;
 995         fh->type          = f->type;
 996
 997         dev->fourcc       = f->fmt.pix.pixelformat;
 998
 999         tm6000_set_fourcc_format(dev);
1000
1001         return 0;
1002 }
1003
1004 static int vidioc_reqbufs(struct file *file, void *priv,
1005                            struct v4l2_requestbuffers *p)
1006 {
1007         struct tm6000_fh  *fh = priv;
1008
1009         return videobuf_reqbufs(&fh->vb_vidq, p);
1010 }
1011
1012 static int vidioc_querybuf(struct file *file, void *priv,
1013                             struct v4l2_buffer *p)
1014 {
1015         struct tm6000_fh  *fh = priv;
1016
1017         return videobuf_querybuf(&fh->vb_vidq, p);
1018 }
1019
1020 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1021 {
1022         struct tm6000_fh  *fh = priv;
1023
1024         return videobuf_qbuf(&fh->vb_vidq, p);
1025 }
1026
1027 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1028 {
1029         struct tm6000_fh  *fh = priv;
1030
1031         return videobuf_dqbuf(&fh->vb_vidq, p,
1032                                 file->f_flags & O_NONBLOCK);
1033 }
1034
1035 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1036 {
1037         struct tm6000_fh  *fh = priv;
1038         struct tm6000_core *dev    = fh->dev;
1039
1040         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1041                 return -EINVAL;
1042         if (i != fh->type)
1043                 return -EINVAL;
1044
1045         if (!res_get(dev, fh, false))
1046                 return -EBUSY;
1047         return (videobuf_streamon(&fh->vb_vidq));
1048 }
1049
1050 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1051 {
1052         struct tm6000_fh  *fh=priv;
1053         struct tm6000_core *dev    = fh->dev;
1054
1055         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1056                 return -EINVAL;
1057         if (i != fh->type)
1058                 return -EINVAL;
1059
1060         videobuf_streamoff(&fh->vb_vidq);
1061         res_free(dev,fh);
1062
1063         return (0);
1064 }
1065
1066 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
1067 {
1068         int rc=0;
1069         struct tm6000_fh   *fh=priv;
1070         struct tm6000_core *dev = fh->dev;
1071
1072         dev->norm = *norm;
1073         rc = tm6000_init_analog_mode(dev);
1074
1075         fh->width  = dev->width;
1076         fh->height = dev->height;
1077
1078         if (rc<0)
1079                 return rc;
1080
1081         v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1082
1083         return 0;
1084 }
1085
1086 static int vidioc_enum_input(struct file *file, void *priv,
1087                                 struct v4l2_input *inp)
1088 {
1089         struct tm6000_fh   *fh = priv;
1090         struct tm6000_core *dev = fh->dev;
1091
1092         switch (inp->index) {
1093         case TM6000_INPUT_TV:
1094                 inp->type = V4L2_INPUT_TYPE_TUNER;
1095                 strcpy(inp->name, "Television");
1096                 break;
1097         case TM6000_INPUT_COMPOSITE:
1098                 if (dev->caps.has_input_comp) {
1099                         inp->type = V4L2_INPUT_TYPE_CAMERA;
1100                         strcpy(inp->name, "Composite");
1101                 } else
1102                         return -EINVAL;
1103                 break;
1104         case TM6000_INPUT_SVIDEO:
1105                 if (dev->caps.has_input_svid) {
1106                         inp->type = V4L2_INPUT_TYPE_CAMERA;
1107                         strcpy(inp->name, "S-Video");
1108                 } else
1109                         return -EINVAL;
1110                 break;
1111         default:
1112                 return -EINVAL;
1113         }
1114         inp->std = TM6000_STD;
1115
1116         return 0;
1117 }
1118
1119 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1120 {
1121         struct tm6000_fh   *fh = priv;
1122         struct tm6000_core *dev = fh->dev;
1123
1124         *i = dev->input;
1125
1126         return 0;
1127 }
1128 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1129 {
1130         struct tm6000_fh   *fh = priv;
1131         struct tm6000_core *dev = fh->dev;
1132         int rc = 0;
1133         char buf[1];
1134
1135         switch (i) {
1136         case TM6000_INPUT_TV:
1137                 dev->input = i;
1138                 *buf = 0;
1139                 break;
1140         case TM6000_INPUT_COMPOSITE:
1141         case TM6000_INPUT_SVIDEO:
1142                 dev->input = i;
1143                 *buf = 1;
1144                 break;
1145         default:
1146                 return -EINVAL;
1147         }
1148         rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR,
1149                                REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
1150
1151         if (!rc) {
1152                 dev->input = i;
1153                 rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1154         }
1155
1156         return rc;
1157 }
1158
1159 /* --- controls ---------------------------------------------- */
1160 static int vidioc_queryctrl(struct file *file, void *priv,
1161                                 struct v4l2_queryctrl *qc)
1162 {
1163         int i;
1164
1165         for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1166                 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1167                         memcpy(qc, &(tm6000_qctrl[i]),
1168                                 sizeof(*qc));
1169                         return 0;
1170                 }
1171
1172         return -EINVAL;
1173 }
1174
1175 static int vidioc_g_ctrl(struct file *file, void *priv,
1176                                 struct v4l2_control *ctrl)
1177 {
1178         struct tm6000_fh  *fh = priv;
1179         struct tm6000_core *dev    = fh->dev;
1180         int  val;
1181
1182         /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1183         switch (ctrl->id) {
1184         case V4L2_CID_CONTRAST:
1185                 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1186                 break;
1187         case V4L2_CID_BRIGHTNESS:
1188                 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1189                 return 0;
1190         case V4L2_CID_SATURATION:
1191                 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1192                 return 0;
1193         case V4L2_CID_HUE:
1194                 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1195                 return 0;
1196         case V4L2_CID_AUDIO_MUTE:
1197                 val = dev->ctl_mute;
1198                 return 0;
1199         case V4L2_CID_AUDIO_VOLUME:
1200                 val = dev->ctl_volume;
1201                 return 0;
1202         default:
1203                 return -EINVAL;
1204         }
1205
1206         if (val < 0)
1207                 return val;
1208
1209         ctrl->value = val;
1210
1211         return 0;
1212 }
1213 static int vidioc_s_ctrl(struct file *file, void *priv,
1214                                 struct v4l2_control *ctrl)
1215 {
1216         struct tm6000_fh   *fh  = priv;
1217         struct tm6000_core *dev = fh->dev;
1218         u8  val = ctrl->value;
1219
1220         switch (ctrl->id) {
1221         case V4L2_CID_CONTRAST:
1222                 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1223                 return 0;
1224         case V4L2_CID_BRIGHTNESS:
1225                 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1226                 return 0;
1227         case V4L2_CID_SATURATION:
1228                 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1229                 return 0;
1230         case V4L2_CID_HUE:
1231                 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1232                 return 0;
1233         case V4L2_CID_AUDIO_MUTE:
1234                 dev->ctl_mute = val;
1235                 tm6000_tvaudio_set_mute(dev, val);
1236                 return 0;
1237         case V4L2_CID_AUDIO_VOLUME:
1238                 dev->ctl_volume = val;
1239                 tm6000_set_volume(dev, val);
1240                 return 0;
1241         }
1242         return -EINVAL;
1243 }
1244
1245 static int vidioc_g_tuner(struct file *file, void *priv,
1246                                 struct v4l2_tuner *t)
1247 {
1248         struct tm6000_fh   *fh  = priv;
1249         struct tm6000_core *dev = fh->dev;
1250
1251         if (unlikely(UNSET == dev->tuner_type))
1252                 return -EINVAL;
1253         if (0 != t->index)
1254                 return -EINVAL;
1255
1256         strcpy(t->name, "Television");
1257         t->type       = V4L2_TUNER_ANALOG_TV;
1258         t->capability = V4L2_TUNER_CAP_NORM;
1259         t->rangehigh  = 0xffffffffUL;
1260         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1261
1262         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1263
1264         t->audmode = dev->amode;
1265
1266         return 0;
1267 }
1268
1269 static int vidioc_s_tuner(struct file *file, void *priv,
1270                                 struct v4l2_tuner *t)
1271 {
1272         struct tm6000_fh   *fh  = priv;
1273         struct tm6000_core *dev = fh->dev;
1274
1275         if (UNSET == dev->tuner_type)
1276                 return -EINVAL;
1277         if (0 != t->index)
1278                 return -EINVAL;
1279
1280         dev->amode = t->audmode;
1281         dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1282
1283         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1284         return 0;
1285 }
1286
1287 static int vidioc_g_frequency(struct file *file, void *priv,
1288                                 struct v4l2_frequency *f)
1289 {
1290         struct tm6000_fh   *fh  = priv;
1291         struct tm6000_core *dev = fh->dev;
1292
1293         if (unlikely(UNSET == dev->tuner_type))
1294                 return -EINVAL;
1295
1296         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1297         f->frequency = dev->freq;
1298
1299         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1300
1301         return 0;
1302 }
1303
1304 static int vidioc_s_frequency(struct file *file, void *priv,
1305                                 struct v4l2_frequency *f)
1306 {
1307         struct tm6000_fh   *fh  = priv;
1308         struct tm6000_core *dev = fh->dev;
1309
1310         if (unlikely(UNSET == dev->tuner_type))
1311                 return -EINVAL;
1312         if (unlikely(f->tuner != 0))
1313                 return -EINVAL;
1314         if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1315                 return -EINVAL;
1316         if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1317                 return -EINVAL;
1318
1319         dev->freq = f->frequency;
1320         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1321
1322         return 0;
1323 }
1324
1325 static int radio_querycap(struct file *file, void *priv,
1326                                         struct v4l2_capability *cap)
1327 {
1328         struct tm6000_fh *fh = file->private_data;
1329         struct tm6000_core *dev = fh->dev;
1330
1331         strcpy(cap->driver, "tm6000");
1332         strlcpy(cap->card, dev->name, sizeof(dev->name));
1333         sprintf(cap->bus_info, "USB%04x:%04x",
1334                 le16_to_cpu(dev->udev->descriptor.idVendor),
1335                 le16_to_cpu(dev->udev->descriptor.idProduct));
1336         cap->version = dev->dev_type;
1337         cap->capabilities = V4L2_CAP_TUNER |
1338                         V4L2_CAP_AUDIO     |
1339                         V4L2_CAP_RADIO     |
1340                         V4L2_CAP_READWRITE |
1341                         V4L2_CAP_STREAMING;
1342
1343         return 0;
1344 }
1345
1346 static int radio_g_tuner(struct file *file, void *priv,
1347                                         struct v4l2_tuner *t)
1348 {
1349         struct tm6000_fh *fh = file->private_data;
1350         struct tm6000_core *dev = fh->dev;
1351
1352         if (0 != t->index)
1353                 return -EINVAL;
1354
1355         memset(t, 0, sizeof(*t));
1356         strcpy(t->name, "Radio");
1357         t->type = V4L2_TUNER_RADIO;
1358         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1359
1360         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1361
1362         return 0;
1363 }
1364
1365 static int radio_s_tuner(struct file *file, void *priv,
1366                                         struct v4l2_tuner *t)
1367 {
1368         struct tm6000_fh *fh = file->private_data;
1369         struct tm6000_core *dev = fh->dev;
1370
1371         if (0 != t->index)
1372                 return -EINVAL;
1373
1374         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1375
1376         return 0;
1377 }
1378
1379 static int radio_enum_input(struct file *file, void *priv,
1380                                         struct v4l2_input *i)
1381 {
1382         if (i->index != 0)
1383                 return -EINVAL;
1384
1385         strcpy(i->name, "Radio");
1386         i->type = V4L2_INPUT_TYPE_TUNER;
1387
1388         return 0;
1389 }
1390
1391 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1392 {
1393         *i = 0;
1394         return 0;
1395 }
1396
1397 static int radio_g_audio(struct file *file, void *priv,
1398                                         struct v4l2_audio *a)
1399 {
1400         memset(a, 0, sizeof(*a));
1401         strcpy(a->name, "Radio");
1402         return 0;
1403 }
1404
1405 static int radio_s_audio(struct file *file, void *priv,
1406                                         struct v4l2_audio *a)
1407 {
1408         return 0;
1409 }
1410
1411 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1412 {
1413         return 0;
1414 }
1415
1416 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1417 {
1418         return 0;
1419 }
1420
1421 static int radio_queryctrl(struct file *file, void *priv,
1422                                         struct v4l2_queryctrl *c)
1423 {
1424         const struct v4l2_queryctrl *ctrl;
1425
1426         if (c->id <  V4L2_CID_BASE ||
1427             c->id >= V4L2_CID_LASTP1)
1428                 return -EINVAL;
1429         if (c->id == V4L2_CID_AUDIO_MUTE) {
1430                 ctrl = ctrl_by_id(c->id);
1431                 *c = *ctrl;
1432         } else
1433                 *c = no_ctrl;
1434
1435         return 0;
1436 }
1437
1438 /* ------------------------------------------------------------------
1439         File operations for the device
1440    ------------------------------------------------------------------*/
1441
1442 static int tm6000_open(struct file *file)
1443 {
1444         struct video_device *vdev = video_devdata(file);
1445         struct tm6000_core *dev = video_drvdata(file);
1446         struct tm6000_fh *fh;
1447         enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1448         int i, rc;
1449         int radio = 0;
1450
1451         printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1452                 video_device_node_name(vdev));
1453
1454         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1455                 video_device_node_name(vdev));
1456
1457         switch (vdev->vfl_type) {
1458         case VFL_TYPE_GRABBER:
1459                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1460                 break;
1461         case VFL_TYPE_VBI:
1462                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1463                 break;
1464         case VFL_TYPE_RADIO:
1465                 radio = 1;
1466                 break;
1467         }
1468
1469         /* If more than one user, mutex should be added */
1470         dev->users++;
1471
1472         dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1473                 video_device_node_name(vdev), v4l2_type_names[type],
1474                 dev->users);
1475
1476         /* allocate + initialize per filehandle data */
1477         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1478         if (NULL == fh) {
1479                 dev->users--;
1480                 return -ENOMEM;
1481         }
1482
1483         file->private_data = fh;
1484         fh->dev      = dev;
1485         fh->radio    = radio;
1486         dev->radio   = radio;
1487         fh->type     = type;
1488         dev->fourcc  = format[0].fourcc;
1489
1490         fh->fmt      = format_by_fourcc(dev->fourcc);
1491
1492         tm6000_get_std_res (dev);
1493
1494         fh->width    = dev->width;
1495         fh->height   = dev->height;
1496
1497         dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1498                                                 "dev->vidq=0x%08lx\n",
1499                 (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
1500         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1501                                 "queued=%d\n",list_empty(&dev->vidq.queued));
1502         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1503                                 "active=%d\n",list_empty(&dev->vidq.active));
1504
1505         /* initialize hardware on analog mode */
1506         rc = tm6000_init_analog_mode(dev);
1507         if (rc < 0)
1508                 return rc;
1509
1510         if (dev->mode != TM6000_MODE_ANALOG) {
1511                 /* Put all controls at a sane state */
1512                 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1513                         qctl_regs[i] = tm6000_qctrl[i].default_value;
1514
1515                 dev->mode = TM6000_MODE_ANALOG;
1516         }
1517
1518         videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1519                         NULL, &dev->slock,
1520                         fh->type,
1521                         V4L2_FIELD_INTERLACED,
1522                         sizeof(struct tm6000_buffer), fh, &dev->lock);
1523
1524         if (fh->radio) {
1525                 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1526                 tm6000_set_audio_input(dev, dev->aradio);
1527                 tm6000_set_volume(dev, dev->ctl_volume);
1528                 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1529                 tm6000_prepare_isoc(dev);
1530                 tm6000_start_thread(dev);
1531         }
1532         else {
1533                 tm6000_set_audio_input(dev, dev->avideo);
1534                 tm6000_set_volume(dev, dev->ctl_volume);
1535         }
1536
1537         return 0;
1538 }
1539
1540 static ssize_t
1541 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1542 {
1543         struct tm6000_fh        *fh = file->private_data;
1544
1545         if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1546                 if (!res_get(fh->dev, fh, true))
1547                         return -EBUSY;
1548
1549                 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1550                                         file->f_flags & O_NONBLOCK);
1551         }
1552         return 0;
1553 }
1554
1555 static unsigned int
1556 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1557 {
1558         struct tm6000_fh        *fh = file->private_data;
1559         struct tm6000_buffer    *buf;
1560
1561         if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1562                 return POLLERR;
1563
1564         if (!!is_res_streaming(fh->dev, fh))
1565                 return POLLERR;
1566
1567         if (!is_res_read(fh->dev, fh)) {
1568                 /* streaming capture */
1569                 if (list_empty(&fh->vb_vidq.stream))
1570                         return POLLERR;
1571                 buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
1572         } else {
1573                 /* read() capture */
1574                 return videobuf_poll_stream(file, &fh->vb_vidq,
1575                                             wait);
1576         }
1577         poll_wait(file, &buf->vb.done, wait);
1578         if (buf->vb.state == VIDEOBUF_DONE ||
1579             buf->vb.state == VIDEOBUF_ERROR)
1580                 return POLLIN | POLLRDNORM;
1581         return 0;
1582 }
1583
1584 static int tm6000_release(struct file *file)
1585 {
1586         struct tm6000_fh         *fh = file->private_data;
1587         struct tm6000_core      *dev = fh->dev;
1588         struct video_device    *vdev = video_devdata(file);
1589
1590         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1591                 video_device_node_name(vdev), dev->users);
1592
1593         dev->users--;
1594
1595         res_free(dev, fh);
1596         if (!dev->users) {
1597                 tm6000_uninit_isoc(dev);
1598                 videobuf_mmap_free(&fh->vb_vidq);
1599         }
1600
1601         kfree(fh);
1602
1603         return 0;
1604 }
1605
1606 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1607 {
1608         struct tm6000_fh        *fh = file->private_data;
1609         int ret;
1610
1611         ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1612
1613         return ret;
1614 }
1615
1616 static struct v4l2_file_operations tm6000_fops = {
1617         .owner          = THIS_MODULE,
1618         .open           = tm6000_open,
1619         .release        = tm6000_release,
1620         .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1621         .read           = tm6000_read,
1622         .poll           = tm6000_poll,
1623         .mmap           = tm6000_mmap,
1624 };
1625
1626 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1627         .vidioc_querycap          = vidioc_querycap,
1628         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1629         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1630         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1631         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1632         .vidioc_s_std             = vidioc_s_std,
1633         .vidioc_enum_input        = vidioc_enum_input,
1634         .vidioc_g_input           = vidioc_g_input,
1635         .vidioc_s_input           = vidioc_s_input,
1636         .vidioc_queryctrl         = vidioc_queryctrl,
1637         .vidioc_g_ctrl            = vidioc_g_ctrl,
1638         .vidioc_s_ctrl            = vidioc_s_ctrl,
1639         .vidioc_g_tuner           = vidioc_g_tuner,
1640         .vidioc_s_tuner           = vidioc_s_tuner,
1641         .vidioc_g_frequency       = vidioc_g_frequency,
1642         .vidioc_s_frequency       = vidioc_s_frequency,
1643         .vidioc_streamon          = vidioc_streamon,
1644         .vidioc_streamoff         = vidioc_streamoff,
1645         .vidioc_reqbufs           = vidioc_reqbufs,
1646         .vidioc_querybuf          = vidioc_querybuf,
1647         .vidioc_qbuf              = vidioc_qbuf,
1648         .vidioc_dqbuf             = vidioc_dqbuf,
1649 };
1650
1651 static struct video_device tm6000_template = {
1652         .name           = "tm6000",
1653         .fops           = &tm6000_fops,
1654         .ioctl_ops      = &video_ioctl_ops,
1655         .release        = video_device_release,
1656         .tvnorms        = TM6000_STD,
1657         .current_norm   = V4L2_STD_NTSC_M,
1658 };
1659
1660 static const struct v4l2_file_operations radio_fops = {
1661         .owner    = THIS_MODULE,
1662         .open     = tm6000_open,
1663         .release  = tm6000_release,
1664         .ioctl    = video_ioctl2,
1665 };
1666
1667 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1668         .vidioc_querycap        = radio_querycap,
1669         .vidioc_g_tuner         = radio_g_tuner,
1670         .vidioc_enum_input      = radio_enum_input,
1671         .vidioc_g_audio         = radio_g_audio,
1672         .vidioc_s_tuner         = radio_s_tuner,
1673         .vidioc_s_audio         = radio_s_audio,
1674         .vidioc_s_input         = radio_s_input,
1675         .vidioc_s_std           = radio_s_std,
1676         .vidioc_queryctrl       = radio_queryctrl,
1677         .vidioc_g_input         = radio_g_input,
1678         .vidioc_g_ctrl          = vidioc_g_ctrl,
1679         .vidioc_s_ctrl          = vidioc_s_ctrl,
1680         .vidioc_g_frequency     = vidioc_g_frequency,
1681         .vidioc_s_frequency     = vidioc_s_frequency,
1682 };
1683
1684 struct video_device tm6000_radio_template = {
1685         .name                   = "tm6000",
1686         .fops                   = &radio_fops,
1687         .ioctl_ops              = &radio_ioctl_ops,
1688 };
1689
1690 /* -----------------------------------------------------------------
1691  *      Initialization and module stuff
1692  * ------------------------------------------------------------------
1693  */
1694
1695 static struct video_device *vdev_init(struct tm6000_core *dev,
1696                 const struct video_device
1697                 *template, const char *type_name)
1698 {
1699         struct video_device *vfd;
1700
1701         vfd = video_device_alloc();
1702         if (NULL == vfd)
1703                 return NULL;
1704
1705         *vfd = *template;
1706         vfd->v4l2_dev = &dev->v4l2_dev;
1707         vfd->release = video_device_release;
1708         vfd->debug = tm6000_debug;
1709         vfd->lock = &dev->lock;
1710
1711         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1712
1713         video_set_drvdata(vfd, dev);
1714         return vfd;
1715 }
1716
1717 int tm6000_v4l2_register(struct tm6000_core *dev)
1718 {
1719         int ret = -1;
1720
1721         dev->vfd = vdev_init(dev, &tm6000_template, "video");
1722
1723         if (!dev->vfd) {
1724                 printk(KERN_INFO "%s: can't register video device\n",
1725                        dev->name);
1726                 return -ENOMEM;
1727         }
1728
1729         /* init video dma queues */
1730         INIT_LIST_HEAD(&dev->vidq.active);
1731         INIT_LIST_HEAD(&dev->vidq.queued);
1732
1733         ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1734
1735         if (ret < 0) {
1736                 printk(KERN_INFO "%s: can't register video device\n",
1737                        dev->name);
1738                 return ret;
1739         }
1740
1741         printk(KERN_INFO "%s: registered device %s\n",
1742                dev->name, video_device_node_name(dev->vfd));
1743
1744         if (dev->caps.has_radio) {
1745                 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1746                                                            "radio");
1747                 if (!dev->radio_dev) {
1748                         printk(KERN_INFO "%s: can't register radio device\n",
1749                                dev->name);
1750                         return ret; /* FIXME release resource */
1751                 }
1752
1753                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1754                                             radio_nr);
1755                 if (ret < 0) {
1756                         printk(KERN_INFO "%s: can't register radio device\n",
1757                                dev->name);
1758                         return ret; /* FIXME release resource */
1759                 }
1760
1761                 printk(KERN_INFO "%s: registered device %s\n",
1762                        dev->name, video_device_node_name(dev->radio_dev));
1763         }
1764
1765         printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1766         return ret;
1767 }
1768
1769 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1770 {
1771         video_unregister_device(dev->vfd);
1772
1773         if (dev->radio_dev) {
1774                 if (video_is_registered(dev->radio_dev))
1775                         video_unregister_device(dev->radio_dev);
1776                 else
1777                         video_device_release(dev->radio_dev);
1778                 dev->radio_dev = NULL;
1779         }
1780
1781         return 0;
1782 }
1783
1784 int tm6000_v4l2_exit(void)
1785 {
1786         return 0;
1787 }
1788
1789 module_param(video_nr, int, 0);
1790 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1791
1792 module_param_named(debug, tm6000_debug, int, 0444);
1793 MODULE_PARM_DESC(debug, "activates debug info");
1794
1795 module_param(vid_limit, int, 0644);
1796 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1797