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
  23 #include <linux/module.h>
  24 #include <linux/delay.h>
  25 #include <linux/errno.h>
  26 #include <linux/fs.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/mm.h>
  30 #include <linux/ioport.h>
  31 #include <linux/init.h>
  32 #include <linux/sched.h>
  33 #include <linux/random.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         /* Cleans up buffer - Useful for testing for frame/URB loss */
 184         outp = videobuf_to_vmalloc(&(*buf)->vb);
 185
 186         return;
 187 }
 188
 189 /*
 190  * Announces that a buffer were filled and request the next
 191  */
 192 static inline void buffer_filled(struct tm6000_core *dev,
 193                                  struct tm6000_dmaqueue *dma_q,
 194                                  struct tm6000_buffer *buf)
 195 {
 196         /* Advice that buffer was filled */
 197         dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
 198         buf->vb.state = VIDEOBUF_DONE;
 199         buf->vb.field_count++;
 200         do_gettimeofday(&buf->vb.ts);
 201
 202         list_del(&buf->vb.queue);
 203         wake_up(&buf->vb.done);
 204 }
 205
 206 /*
 207  * Identify the tm5600/6000 buffer header type and properly handles
 208  */
 209 static int copy_streams(u8 *data, unsigned long len,
 210                         struct urb *urb)
 211 {
 212         struct tm6000_dmaqueue  *dma_q = urb->context;
 213         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 214         u8 *ptr = data, *endp = data+len, c;
 215         unsigned long header = 0;
 216         int rc = 0;
 217         unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
 218         struct tm6000_buffer *vbuf = NULL;
 219         char *voutp = NULL;
 220         unsigned int linewidth;
 221
 222         if (!dev->radio) {
 223                 /* get video buffer */
 224                 get_next_buf(dma_q, &vbuf);
 225
 226                 if (!vbuf)
 227                         return rc;
 228                 voutp = videobuf_to_vmalloc(&vbuf->vb);
 229
 230                 if (!voutp)
 231                         return 0;
 232         }
 233
 234         for (ptr = data; ptr < endp;) {
 235                 if (!dev->isoc_ctl.cmd) {
 236                         /* Header */
 237                         if (dev->isoc_ctl.tmp_buf_len > 0) {
 238                                 /* from last urb or packet */
 239                                 header = dev->isoc_ctl.tmp_buf;
 240                                 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
 241                                         memcpy((u8 *)&header +
 242                                                 dev->isoc_ctl.tmp_buf_len,
 243                                                 ptr,
 244                                                 4 - dev->isoc_ctl.tmp_buf_len);
 245                                         ptr += 4 - dev->isoc_ctl.tmp_buf_len;
 246                                 }
 247                                 dev->isoc_ctl.tmp_buf_len = 0;
 248                         } else {
 249                                 if (ptr + 3 >= endp) {
 250                                         /* have incomplete header */
 251                                         dev->isoc_ctl.tmp_buf_len = endp - ptr;
 252                                         memcpy(&dev->isoc_ctl.tmp_buf, ptr,
 253                                                 dev->isoc_ctl.tmp_buf_len);
 254                                         return rc;
 255                                 }
 256                                 /* Seek for sync */
 257                                 for (; ptr < endp - 3; ptr++) {
 258                                         if (*(ptr + 3) == 0x47)
 259                                                 break;
 260                                 }
 261                                 /* Get message header */
 262                                 header = *(unsigned long *)ptr;
 263                                 ptr += 4;
 264                         }
 265
 266                         /* split the header fields */
 267                         c = (header >> 24) & 0xff;
 268                         size = ((header & 0x7e) << 1);
 269                         if (size > 0)
 270                                 size -= 4;
 271                         block = (header >> 7) & 0xf;
 272                         field = (header >> 11) & 0x1;
 273                         line  = (header >> 12) & 0x1ff;
 274                         cmd   = (header >> 21) & 0x7;
 275                         /* Validates haeder fields */
 276                         if (size > TM6000_URB_MSG_LEN)
 277                                 size = TM6000_URB_MSG_LEN;
 278                         pktsize = TM6000_URB_MSG_LEN;
 279                         /*
 280                          * calculate position in buffer and change the buffer
 281                          */
 282                         switch (cmd) {
 283                         case TM6000_URB_MSG_VIDEO:
 284                                 if (!dev->radio) {
 285                                         if ((dev->isoc_ctl.vfield != field) &&
 286                                                 (field == 1)) {
 287                                                 /*
 288                                                  * Announces that a new buffer
 289                                                  * were filled
 290                                                  */
 291                                                 buffer_filled(dev, dma_q, vbuf);
 292                                                 dprintk(dev, V4L2_DEBUG_ISOC,
 293                                                         "new buffer filled\n");
 294                                                 get_next_buf(dma_q, &vbuf);
 295                                                 if (!vbuf)
 296                                                         return rc;
 297                                                 voutp = videobuf_to_vmalloc(&vbuf->vb);
 298                                                 if (!voutp)
 299                                                         return rc;
 300                                                 memset(voutp, 0, vbuf->vb.size);
 301                                         }
 302                                         linewidth = vbuf->vb.width << 1;
 303                                         pos = ((line << 1) - field - 1) *
 304                                         linewidth + block * TM6000_URB_MSG_LEN;
 305                                         /* Don't allow to write out of the buffer */
 306                                         if (pos + size > vbuf->vb.size)
 307                                                 cmd = TM6000_URB_MSG_ERR;
 308                                         dev->isoc_ctl.vfield = field;
 309                                 }
 310                                 break;
 311                         case TM6000_URB_MSG_VBI:
 312                                 break;
 313                         case TM6000_URB_MSG_AUDIO:
 314                         case TM6000_URB_MSG_PTS:
 315                                 size = pktsize; /* Size is always 180 bytes */
 316                                 break;
 317                         }
 318                 } else {
 319                         /* Continue the last copy */
 320                         cmd = dev->isoc_ctl.cmd;
 321                         size = dev->isoc_ctl.size;
 322                         pos = dev->isoc_ctl.pos;
 323                         pktsize = dev->isoc_ctl.pktsize;
 324                         field = dev->isoc_ctl.field;
 325                 }
 326                 cpysize = (endp - ptr > size) ? size : endp - ptr;
 327                 if (cpysize) {
 328                         /* copy data in different buffers */
 329                         switch (cmd) {
 330                         case TM6000_URB_MSG_VIDEO:
 331                                 /* Fills video buffer */
 332                                 if (vbuf)
 333                                         memcpy(&voutp[pos], ptr, cpysize);
 334                                 break;
 335                         case TM6000_URB_MSG_AUDIO: {
 336                                 int i;
 337                                 for (i = 0; i < cpysize; i += 2)
 338                                         swab16s((u16 *)(ptr + i));
 339
 340                                 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
 341                                 break;
 342                         }
 343                         case TM6000_URB_MSG_VBI:
 344                                 /* Need some code to copy vbi buffer */
 345                                 break;
 346                         case TM6000_URB_MSG_PTS: {
 347                                 /* Need some code to copy pts */
 348                                 u32 pts;
 349                                 pts = *(u32 *)ptr;
 350                                 dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
 351                                         field, pts);
 352                                 break;
 353                         }
 354                         }
 355                 }
 356                 if (ptr + pktsize > endp) {
 357                         /*
 358                          * End of URB packet, but cmd processing is not
 359                          * complete. Preserve the state for a next packet
 360                          */
 361                         dev->isoc_ctl.pos = pos + cpysize;
 362                         dev->isoc_ctl.size = size - cpysize;
 363                         dev->isoc_ctl.cmd = cmd;
 364                         dev->isoc_ctl.field = field;
 365                         dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
 366                         ptr += endp - ptr;
 367                 } else {
 368                         dev->isoc_ctl.cmd = 0;
 369                         ptr += pktsize;
 370                 }
 371         }
 372         return 0;
 373 }
 374
 375 /*
 376  * Identify the tm5600/6000 buffer header type and properly handles
 377  */
 378 static int copy_multiplexed(u8 *ptr, unsigned long len,
 379                         struct urb *urb)
 380 {
 381         struct tm6000_dmaqueue  *dma_q = urb->context;
 382         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 383         unsigned int pos = dev->isoc_ctl.pos, cpysize;
 384         int rc = 1;
 385         struct tm6000_buffer *buf;
 386         char *outp = NULL;
 387
 388         get_next_buf(dma_q, &buf);
 389         if (buf)
 390                 outp = videobuf_to_vmalloc(&buf->vb);
 391
 392         if (!outp)
 393                 return 0;
 394
 395         while (len > 0) {
 396                 cpysize = min(len, buf->vb.size-pos);
 397                 memcpy(&outp[pos], ptr, cpysize);
 398                 pos += cpysize;
 399                 ptr += cpysize;
 400                 len -= cpysize;
 401                 if (pos >= buf->vb.size) {
 402                         pos = 0;
 403                         /* Announces that a new buffer were filled */
 404                         buffer_filled(dev, dma_q, buf);
 405                         dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
 406                         get_next_buf(dma_q, &buf);
 407                         if (!buf)
 408                                 break;
 409                         outp = videobuf_to_vmalloc(&(buf->vb));
 410                         if (!outp)
 411                                 return rc;
 412                         pos = 0;
 413                 }
 414         }
 415
 416         dev->isoc_ctl.pos = pos;
 417         return rc;
 418 }
 419
 420 static inline void print_err_status(struct tm6000_core *dev,
 421                                      int packet, int status)
 422 {
 423         char *errmsg = "Unknown";
 424
 425         switch (status) {
 426         case -ENOENT:
 427                 errmsg = "unlinked synchronuously";
 428                 break;
 429         case -ECONNRESET:
 430                 errmsg = "unlinked asynchronuously";
 431                 break;
 432         case -ENOSR:
 433                 errmsg = "Buffer error (overrun)";
 434                 break;
 435         case -EPIPE:
 436                 errmsg = "Stalled (device not responding)";
 437                 break;
 438         case -EOVERFLOW:
 439                 errmsg = "Babble (bad cable?)";
 440                 break;
 441         case -EPROTO:
 442                 errmsg = "Bit-stuff error (bad cable?)";
 443                 break;
 444         case -EILSEQ:
 445                 errmsg = "CRC/Timeout (could be anything)";
 446                 break;
 447         case -ETIME:
 448                 errmsg = "Device does not respond";
 449                 break;
 450         }
 451         if (packet < 0) {
 452                 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
 453                         status, errmsg);
 454         } else {
 455                 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
 456                         packet, status, errmsg);
 457         }
 458 }
 459
 460
 461 /*
 462  * Controls the isoc copy of each urb packet
 463  */
 464 static inline int tm6000_isoc_copy(struct urb *urb)
 465 {
 466         struct tm6000_dmaqueue  *dma_q = urb->context;
 467         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 468         int i, len = 0, rc = 1, status;
 469         char *p;
 470
 471         if (urb->status < 0) {
 472                 print_err_status(dev, -1, urb->status);
 473                 return 0;
 474         }
 475
 476         for (i = 0; i < urb->number_of_packets; i++) {
 477                 status = urb->iso_frame_desc[i].status;
 478
 479                 if (status < 0) {
 480                         print_err_status(dev, i, status);
 481                         continue;
 482                 }
 483
 484                 len = urb->iso_frame_desc[i].actual_length;
 485
 486                 if (len > 0) {
 487                         p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 488                         if (!urb->iso_frame_desc[i].status) {
 489                                 if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
 490                                         rc = copy_multiplexed(p, len, urb);
 491                                         if (rc <= 0)
 492                                                 return rc;
 493                                 } else {
 494                                         copy_streams(p, len, urb);
 495                                 }
 496                         }
 497                 }
 498         }
 499         return rc;
 500 }
 501
 502 /* ------------------------------------------------------------------
 503  *      URB control
 504  * ------------------------------------------------------------------
 505  */
 506
 507 /*
 508  * IRQ callback, called by URB callback
 509  */
 510 static void tm6000_irq_callback(struct urb *urb)
 511 {
 512         struct tm6000_dmaqueue  *dma_q = urb->context;
 513         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 514         int i;
 515
 516         switch (urb->status) {
 517         case 0:
 518         case -ETIMEDOUT:
 519                 break;
 520
 521         case -ECONNRESET:
 522         case -ENOENT:
 523         case -ESHUTDOWN:
 524                 return;
 525
 526         default:
 527                 tm6000_err("urb completion error %d.\n", urb->status);
 528                 break;
 529         }
 530
 531         spin_lock(&dev->slock);
 532         tm6000_isoc_copy(urb);
 533         spin_unlock(&dev->slock);
 534
 535         /* Reset urb buffers */
 536         for (i = 0; i < urb->number_of_packets; i++) {
 537                 urb->iso_frame_desc[i].status = 0;
 538                 urb->iso_frame_desc[i].actual_length = 0;
 539         }
 540
 541         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 542         if (urb->status)
 543                 tm6000_err("urb resubmit failed (error=%i)\n",
 544                         urb->status);
 545 }
 546
 547 /*
 548  * Stop and Deallocate URBs
 549  */
 550 static void tm6000_uninit_isoc(struct tm6000_core *dev)
 551 {
 552         struct urb *urb;
 553         int i;
 554
 555         dev->isoc_ctl.buf = NULL;
 556         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 557                 urb = dev->isoc_ctl.urb[i];
 558                 if (urb) {
 559                         usb_kill_urb(urb);
 560                         usb_unlink_urb(urb);
 561                         if (dev->isoc_ctl.transfer_buffer[i]) {
 562                                 usb_free_coherent(dev->udev,
 563                                                 urb->transfer_buffer_length,
 564                                                 dev->isoc_ctl.transfer_buffer[i],
 565                                                 urb->transfer_dma);
 566                         }
 567                         usb_free_urb(urb);
 568                         dev->isoc_ctl.urb[i] = NULL;
 569                 }
 570                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 571         }
 572
 573         kfree(dev->isoc_ctl.urb);
 574         kfree(dev->isoc_ctl.transfer_buffer);
 575
 576         dev->isoc_ctl.urb = NULL;
 577         dev->isoc_ctl.transfer_buffer = NULL;
 578         dev->isoc_ctl.num_bufs = 0;
 579 }
 580
 581 /*
 582  * Allocate URBs and start IRQ
 583  */
 584 static int tm6000_prepare_isoc(struct tm6000_core *dev)
 585 {
 586         struct tm6000_dmaqueue *dma_q = &dev->vidq;
 587         int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
 588         struct urb *urb;
 589
 590         /* De-allocates all pending stuff */
 591         tm6000_uninit_isoc(dev);
 592         /* Stop interrupt USB pipe */
 593         tm6000_ir_int_stop(dev);
 594
 595         usb_set_interface(dev->udev,
 596                           dev->isoc_in.bInterfaceNumber,
 597                           dev->isoc_in.bAlternateSetting);
 598
 599         /* Start interrupt USB pipe */
 600         tm6000_ir_int_start(dev);
 601
 602         pipe = usb_rcvisocpipe(dev->udev,
 603                                dev->isoc_in.endp->desc.bEndpointAddress &
 604                                USB_ENDPOINT_NUMBER_MASK);
 605
 606         size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
 607
 608         if (size > dev->isoc_in.maxsize)
 609                 size = dev->isoc_in.maxsize;
 610
 611         dev->isoc_ctl.max_pkt_size = size;
 612
 613         max_packets = TM6000_MAX_ISO_PACKETS;
 614         sb_size = max_packets * size;
 615
 616         dev->isoc_ctl.num_bufs = num_bufs;
 617
 618         dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
 619         if (!dev->isoc_ctl.urb) {
 620                 tm6000_err("cannot alloc memory for usb buffers\n");
 621                 return -ENOMEM;
 622         }
 623
 624         dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
 625                                    GFP_KERNEL);
 626         if (!dev->isoc_ctl.transfer_buffer) {
 627                 tm6000_err("cannot allocate memory for usbtransfer\n");
 628                 kfree(dev->isoc_ctl.urb);
 629                 return -ENOMEM;
 630         }
 631
 632         dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
 633                     " (%d bytes) of %d bytes each to handle %u size\n",
 634                     max_packets, num_bufs, sb_size,
 635                     dev->isoc_in.maxsize, size);
 636
 637         /* allocate urbs and transfer buffers */
 638         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 639                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 640                 if (!urb) {
 641                         tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
 642                         tm6000_uninit_isoc(dev);
 643                         usb_free_urb(urb);
 644                         return -ENOMEM;
 645                 }
 646                 dev->isoc_ctl.urb[i] = urb;
 647
 648                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
 649                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 650                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 651                         tm6000_err("unable to allocate %i bytes for transfer"
 652                                         " buffer %i%s\n",
 653                                         sb_size, i,
 654                                         in_interrupt() ? " while in int" : "");
 655                         tm6000_uninit_isoc(dev);
 656                         return -ENOMEM;
 657                 }
 658                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 659
 660                 usb_fill_bulk_urb(urb, dev->udev, pipe,
 661                                   dev->isoc_ctl.transfer_buffer[i], sb_size,
 662                                   tm6000_irq_callback, dma_q);
 663                 urb->interval = dev->isoc_in.endp->desc.bInterval;
 664                 urb->number_of_packets = max_packets;
 665                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 666
 667                 for (j = 0; j < max_packets; j++) {
 668                         urb->iso_frame_desc[j].offset = size * j;
 669                         urb->iso_frame_desc[j].length = size;
 670                 }
 671         }
 672
 673         return 0;
 674 }
 675
 676 static int tm6000_start_thread(struct tm6000_core *dev)
 677 {
 678         struct tm6000_dmaqueue *dma_q = &dev->vidq;
 679         int i;
 680
 681         dma_q->frame = 0;
 682         dma_q->ini_jiffies = jiffies;
 683
 684         init_waitqueue_head(&dma_q->wq);
 685
 686         /* submit urbs and enables IRQ */
 687         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 688                 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 689                 if (rc) {
 690                         tm6000_err("submit of urb %i failed (error=%i)\n", i,
 691                                    rc);
 692                         tm6000_uninit_isoc(dev);
 693                         return rc;
 694                 }
 695         }
 696
 697         return 0;
 698 }
 699
 700 /* ------------------------------------------------------------------
 701  *      Videobuf operations
 702  * ------------------------------------------------------------------
 703  */
 704
 705 static int
 706 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 707 {
 708         struct tm6000_fh *fh = vq->priv_data;
 709
 710         *size = fh->fmt->depth * fh->width * fh->height >> 3;
 711         if (0 == *count)
 712                 *count = TM6000_DEF_BUF;
 713
 714         if (*count < TM6000_MIN_BUF)
 715                 *count = TM6000_MIN_BUF;
 716
 717         while (*size * *count > vid_limit * 1024 * 1024)
 718                 (*count)--;
 719
 720         return 0;
 721 }
 722
 723 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
 724 {
 725         struct tm6000_fh *fh = vq->priv_data;
 726         struct tm6000_core   *dev = fh->dev;
 727         unsigned long flags;
 728
 729         if (in_interrupt())
 730                 BUG();
 731
 732         /* We used to wait for the buffer to finish here, but this didn't work
 733            because, as we were keeping the state as VIDEOBUF_QUEUED,
 734            videobuf_queue_cancel marked it as finished for us.
 735            (Also, it could wedge forever if the hardware was misconfigured.)
 736
 737            This should be safe; by the time we get here, the buffer isn't
 738            queued anymore. If we ever start marking the buffers as
 739            VIDEOBUF_ACTIVE, it won't be, though.
 740         */
 741         spin_lock_irqsave(&dev->slock, flags);
 742         if (dev->isoc_ctl.buf == buf)
 743                 dev->isoc_ctl.buf = NULL;
 744         spin_unlock_irqrestore(&dev->slock, flags);
 745
 746         videobuf_vmalloc_free(&buf->vb);
 747         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 748 }
 749
 750 static int
 751 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 752                                                 enum v4l2_field field)
 753 {
 754         struct tm6000_fh     *fh  = vq->priv_data;
 755         struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
 756         struct tm6000_core   *dev = fh->dev;
 757         int rc = 0;
 758
 759         BUG_ON(NULL == fh->fmt);
 760
 761
 762         /* FIXME: It assumes depth=2 */
 763         /* The only currently supported format is 16 bits/pixel */
 764         buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
 765         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 766                 return -EINVAL;
 767
 768         if (buf->fmt       != fh->fmt    ||
 769             buf->vb.width  != fh->width  ||
 770             buf->vb.height != fh->height ||
 771             buf->vb.field  != field) {
 772                 buf->fmt       = fh->fmt;
 773                 buf->vb.width  = fh->width;
 774                 buf->vb.height = fh->height;
 775                 buf->vb.field  = field;
 776                 buf->vb.state = VIDEOBUF_NEEDS_INIT;
 777         }
 778
 779         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 780                 rc = videobuf_iolock(vq, &buf->vb, NULL);
 781                 if (rc != 0)
 782                         goto fail;
 783         }
 784
 785         if (!dev->isoc_ctl.num_bufs) {
 786                 rc = tm6000_prepare_isoc(dev);
 787                 if (rc < 0)
 788                         goto fail;
 789
 790                 rc = tm6000_start_thread(dev);
 791                 if (rc < 0)
 792                         goto fail;
 793
 794         }
 795
 796         buf->vb.state = VIDEOBUF_PREPARED;
 797         return 0;
 798
 799 fail:
 800         free_buffer(vq, buf);
 801         return rc;
 802 }
 803
 804 static void
 805 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 806 {
 807         struct tm6000_buffer    *buf     = container_of(vb, struct tm6000_buffer, vb);
 808         struct tm6000_fh        *fh      = vq->priv_data;
 809         struct tm6000_core      *dev     = fh->dev;
 810         struct tm6000_dmaqueue  *vidq    = &dev->vidq;
 811
 812         buf->vb.state = VIDEOBUF_QUEUED;
 813         list_add_tail(&buf->vb.queue, &vidq->active);
 814 }
 815
 816 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 817 {
 818         struct tm6000_buffer   *buf  = container_of(vb, struct tm6000_buffer, vb);
 819
 820         free_buffer(vq, buf);
 821 }
 822
 823 static struct videobuf_queue_ops tm6000_video_qops = {
 824         .buf_setup      = buffer_setup,
 825         .buf_prepare    = buffer_prepare,
 826         .buf_queue      = buffer_queue,
 827         .buf_release    = buffer_release,
 828 };
 829
 830 /* ------------------------------------------------------------------
 831  *      IOCTL handling
 832  * ------------------------------------------------------------------
 833  */
 834
 835 static bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
 836 {
 837         /* Is the current fh handling it? if so, that's OK */
 838         if (dev->resources == fh && dev->is_res_read)
 839                 return true;
 840
 841         return false;
 842 }
 843
 844 static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
 845 {
 846         /* Is the current fh handling it? if so, that's OK */
 847         if (dev->resources == fh)
 848                 return true;
 849
 850         return false;
 851 }
 852
 853 static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
 854                    bool is_res_read)
 855 {
 856         /* Is the current fh handling it? if so, that's OK */
 857         if (dev->resources == fh && dev->is_res_read == is_res_read)
 858                 return true;
 859
 860         /* is it free? */
 861         if (dev->resources)
 862                 return false;
 863
 864         /* grab it */
 865         dev->resources = fh;
 866         dev->is_res_read = is_res_read;
 867         dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
 868         return true;
 869 }
 870
 871 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
 872 {
 873         /* Is the current fh handling it? if so, that's OK */
 874         if (dev->resources != fh)
 875                 return;
 876
 877         dev->resources = NULL;
 878         dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
 879 }
 880
 881 /* ------------------------------------------------------------------
 882  *      IOCTL vidioc handling
 883  * ------------------------------------------------------------------
 884  */
 885 static int vidioc_querycap(struct file *file, void  *priv,
 886                                         struct v4l2_capability *cap)
 887 {
 888         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 889
 890         strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
 891         strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
 892         cap->version = TM6000_VERSION;
 893         cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
 894                                 V4L2_CAP_STREAMING     |
 895                                 V4L2_CAP_AUDIO         |
 896                                 V4L2_CAP_READWRITE;
 897
 898         if (dev->tuner_type != TUNER_ABSENT)
 899                 cap->capabilities |= V4L2_CAP_TUNER;
 900
 901         return 0;
 902 }
 903
 904 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
 905                                         struct v4l2_fmtdesc *f)
 906 {
 907         if (unlikely(f->index >= ARRAY_SIZE(format)))
 908                 return -EINVAL;
 909
 910         strlcpy(f->description, format[f->index].name, sizeof(f->description));
 911         f->pixelformat = format[f->index].fourcc;
 912         return 0;
 913 }
 914
 915 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 916                                         struct v4l2_format *f)
 917 {
 918         struct tm6000_fh  *fh = priv;
 919
 920         f->fmt.pix.width        = fh->width;
 921         f->fmt.pix.height       = fh->height;
 922         f->fmt.pix.field        = fh->vb_vidq.field;
 923         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 924         f->fmt.pix.bytesperline =
 925                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 926         f->fmt.pix.sizeimage =
 927                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 928
 929         return 0;
 930 }
 931
 932 static struct tm6000_fmt *format_by_fourcc(unsigned int fourcc)
 933 {
 934         unsigned int i;
 935
 936         for (i = 0; i < ARRAY_SIZE(format); i++)
 937                 if (format[i].fourcc == fourcc)
 938                         return format+i;
 939         return NULL;
 940 }
 941
 942 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 943                         struct v4l2_format *f)
 944 {
 945         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 946         struct tm6000_fmt *fmt;
 947         enum v4l2_field field;
 948
 949         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 950         if (NULL == fmt) {
 951                 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
 952                                 " invalid.\n", f->fmt.pix.pixelformat);
 953                 return -EINVAL;
 954         }
 955
 956         field = f->fmt.pix.field;
 957
 958         if (field == V4L2_FIELD_ANY)
 959                 field = V4L2_FIELD_SEQ_TB;
 960         else if (V4L2_FIELD_INTERLACED != field) {
 961                 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
 962                 return -EINVAL;
 963         }
 964
 965         tm6000_get_std_res(dev);
 966
 967         f->fmt.pix.width  = dev->width;
 968         f->fmt.pix.height = dev->height;
 969
 970         f->fmt.pix.width &= ~0x01;
 971
 972         f->fmt.pix.field = field;
 973
 974         f->fmt.pix.bytesperline =
 975                 (f->fmt.pix.width * fmt->depth) >> 3;
 976         f->fmt.pix.sizeimage =
 977                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 978
 979         return 0;
 980 }
 981
 982 /*FIXME: This seems to be generic enough to be at videodev2 */
 983 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 984                                         struct v4l2_format *f)
 985 {
 986         struct tm6000_fh  *fh = priv;
 987         struct tm6000_core *dev = fh->dev;
 988         int ret = vidioc_try_fmt_vid_cap(file, fh, f);
 989         if (ret < 0)
 990                 return ret;
 991
 992         fh->fmt           = format_by_fourcc(f->fmt.pix.pixelformat);
 993         fh->width         = f->fmt.pix.width;
 994         fh->height        = f->fmt.pix.height;
 995         fh->vb_vidq.field = f->fmt.pix.field;
 996         fh->type          = f->type;
 997
 998         dev->fourcc       = f->fmt.pix.pixelformat;
 999
1000         tm6000_set_fourcc_format(dev);
1001
1002         return 0;
1003 }
1004
1005 static int vidioc_reqbufs(struct file *file, void *priv,
1006                            struct v4l2_requestbuffers *p)
1007 {
1008         struct tm6000_fh  *fh = priv;
1009
1010         return videobuf_reqbufs(&fh->vb_vidq, p);
1011 }
1012
1013 static int vidioc_querybuf(struct file *file, void *priv,
1014                             struct v4l2_buffer *p)
1015 {
1016         struct tm6000_fh  *fh = priv;
1017
1018         return videobuf_querybuf(&fh->vb_vidq, p);
1019 }
1020
1021 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1022 {
1023         struct tm6000_fh  *fh = priv;
1024
1025         return videobuf_qbuf(&fh->vb_vidq, p);
1026 }
1027
1028 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1029 {
1030         struct tm6000_fh  *fh = priv;
1031
1032         return videobuf_dqbuf(&fh->vb_vidq, p,
1033                                 file->f_flags & O_NONBLOCK);
1034 }
1035
1036 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1037 {
1038         struct tm6000_fh *fh = priv;
1039         struct tm6000_core *dev = fh->dev;
1040
1041         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1042                 return -EINVAL;
1043         if (i != fh->type)
1044                 return -EINVAL;
1045
1046         if (!res_get(dev, fh, false))
1047                 return -EBUSY;
1048         return videobuf_streamon(&fh->vb_vidq);
1049 }
1050
1051 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1052 {
1053         struct tm6000_fh *fh = priv;
1054         struct tm6000_core *dev = fh->dev;
1055
1056         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1057                 return -EINVAL;
1058
1059         if (i != fh->type)
1060                 return -EINVAL;
1061
1062         videobuf_streamoff(&fh->vb_vidq);
1063         res_free(dev, fh);
1064
1065         return 0;
1066 }
1067
1068 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1069 {
1070         int rc = 0;
1071         struct tm6000_fh *fh = priv;
1072         struct tm6000_core *dev = fh->dev;
1073
1074         dev->norm = *norm;
1075         rc = tm6000_init_analog_mode(dev);
1076
1077         fh->width  = dev->width;
1078         fh->height = dev->height;
1079
1080         if (rc < 0)
1081                 return rc;
1082
1083         v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1084
1085         return 0;
1086 }
1087
1088 static const char *iname[] = {
1089         [TM6000_INPUT_TV] = "Television",
1090         [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1091         [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1092         [TM6000_INPUT_SVIDEO] = "S-Video",
1093 };
1094
1095 static int vidioc_enum_input(struct file *file, void *priv,
1096                                 struct v4l2_input *i)
1097 {
1098         struct tm6000_fh   *fh = priv;
1099         struct tm6000_core *dev = fh->dev;
1100         unsigned int n;
1101
1102         n = i->index;
1103         if (n >= 3)
1104                 return -EINVAL;
1105
1106         if (!dev->vinput[n].type)
1107                 return -EINVAL;
1108
1109         i->index = n;
1110
1111         if (dev->vinput[n].type == TM6000_INPUT_TV)
1112                 i->type = V4L2_INPUT_TYPE_TUNER;
1113         else
1114                 i->type = V4L2_INPUT_TYPE_CAMERA;
1115
1116         strcpy(i->name, iname[dev->vinput[n].type]);
1117
1118         i->std = TM6000_STD;
1119
1120         return 0;
1121 }
1122
1123 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1124 {
1125         struct tm6000_fh   *fh = priv;
1126         struct tm6000_core *dev = fh->dev;
1127
1128         *i = dev->input;
1129
1130         return 0;
1131 }
1132
1133 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1134 {
1135         struct tm6000_fh   *fh = priv;
1136         struct tm6000_core *dev = fh->dev;
1137         int rc = 0;
1138
1139         if (i >= 3)
1140                 return -EINVAL;
1141         if (!dev->vinput[i].type)
1142                 return -EINVAL;
1143
1144         dev->input = i;
1145
1146         rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1147
1148         return rc;
1149 }
1150
1151 /* --- controls ---------------------------------------------- */
1152 static int vidioc_queryctrl(struct file *file, void *priv,
1153                                 struct v4l2_queryctrl *qc)
1154 {
1155         int i;
1156
1157         for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1158                 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1159                         memcpy(qc, &(tm6000_qctrl[i]),
1160                                 sizeof(*qc));
1161                         return 0;
1162                 }
1163
1164         return -EINVAL;
1165 }
1166
1167 static int vidioc_g_ctrl(struct file *file, void *priv,
1168                                 struct v4l2_control *ctrl)
1169 {
1170         struct tm6000_fh  *fh = priv;
1171         struct tm6000_core *dev    = fh->dev;
1172         int  val;
1173
1174         /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1175         switch (ctrl->id) {
1176         case V4L2_CID_CONTRAST:
1177                 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1178                 break;
1179         case V4L2_CID_BRIGHTNESS:
1180                 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1181                 return 0;
1182         case V4L2_CID_SATURATION:
1183                 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1184                 return 0;
1185         case V4L2_CID_HUE:
1186                 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1187                 return 0;
1188         case V4L2_CID_AUDIO_MUTE:
1189                 val = dev->ctl_mute;
1190                 return 0;
1191         case V4L2_CID_AUDIO_VOLUME:
1192                 val = dev->ctl_volume;
1193                 return 0;
1194         default:
1195                 return -EINVAL;
1196         }
1197
1198         if (val < 0)
1199                 return val;
1200
1201         ctrl->value = val;
1202
1203         return 0;
1204 }
1205 static int vidioc_s_ctrl(struct file *file, void *priv,
1206                                 struct v4l2_control *ctrl)
1207 {
1208         struct tm6000_fh   *fh  = priv;
1209         struct tm6000_core *dev = fh->dev;
1210         u8  val = ctrl->value;
1211
1212         switch (ctrl->id) {
1213         case V4L2_CID_CONTRAST:
1214                 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1215                 return 0;
1216         case V4L2_CID_BRIGHTNESS:
1217                 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1218                 return 0;
1219         case V4L2_CID_SATURATION:
1220                 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1221                 return 0;
1222         case V4L2_CID_HUE:
1223                 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1224                 return 0;
1225         case V4L2_CID_AUDIO_MUTE:
1226                 dev->ctl_mute = val;
1227                 tm6000_tvaudio_set_mute(dev, val);
1228                 return 0;
1229         case V4L2_CID_AUDIO_VOLUME:
1230                 dev->ctl_volume = val;
1231                 tm6000_set_volume(dev, val);
1232                 return 0;
1233         }
1234         return -EINVAL;
1235 }
1236
1237 static int vidioc_g_tuner(struct file *file, void *priv,
1238                                 struct v4l2_tuner *t)
1239 {
1240         struct tm6000_fh   *fh  = priv;
1241         struct tm6000_core *dev = fh->dev;
1242
1243         if (unlikely(UNSET == dev->tuner_type))
1244                 return -EINVAL;
1245         if (0 != t->index)
1246                 return -EINVAL;
1247
1248         strcpy(t->name, "Television");
1249         t->type       = V4L2_TUNER_ANALOG_TV;
1250         t->capability = V4L2_TUNER_CAP_NORM;
1251         t->rangehigh  = 0xffffffffUL;
1252         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1253
1254         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1255
1256         t->audmode = dev->amode;
1257
1258         return 0;
1259 }
1260
1261 static int vidioc_s_tuner(struct file *file, void *priv,
1262                                 struct v4l2_tuner *t)
1263 {
1264         struct tm6000_fh   *fh  = priv;
1265         struct tm6000_core *dev = fh->dev;
1266
1267         if (UNSET == dev->tuner_type)
1268                 return -EINVAL;
1269         if (0 != t->index)
1270                 return -EINVAL;
1271
1272         dev->amode = t->audmode;
1273         dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1274
1275         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1276
1277         return 0;
1278 }
1279
1280 static int vidioc_g_frequency(struct file *file, void *priv,
1281                                 struct v4l2_frequency *f)
1282 {
1283         struct tm6000_fh   *fh  = priv;
1284         struct tm6000_core *dev = fh->dev;
1285
1286         if (unlikely(UNSET == dev->tuner_type))
1287                 return -EINVAL;
1288
1289         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1290         f->frequency = dev->freq;
1291
1292         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1293
1294         return 0;
1295 }
1296
1297 static int vidioc_s_frequency(struct file *file, void *priv,
1298                                 struct v4l2_frequency *f)
1299 {
1300         struct tm6000_fh   *fh  = priv;
1301         struct tm6000_core *dev = fh->dev;
1302
1303         if (unlikely(UNSET == dev->tuner_type))
1304                 return -EINVAL;
1305         if (unlikely(f->tuner != 0))
1306                 return -EINVAL;
1307         if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1308                 return -EINVAL;
1309         if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1310                 return -EINVAL;
1311
1312         dev->freq = f->frequency;
1313         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1314
1315         return 0;
1316 }
1317
1318 static int radio_querycap(struct file *file, void *priv,
1319                                         struct v4l2_capability *cap)
1320 {
1321         struct tm6000_fh *fh = file->private_data;
1322         struct tm6000_core *dev = fh->dev;
1323
1324         strcpy(cap->driver, "tm6000");
1325         strlcpy(cap->card, dev->name, sizeof(dev->name));
1326         sprintf(cap->bus_info, "USB%04x:%04x",
1327                 le16_to_cpu(dev->udev->descriptor.idVendor),
1328                 le16_to_cpu(dev->udev->descriptor.idProduct));
1329         cap->version = dev->dev_type;
1330         cap->capabilities = V4L2_CAP_TUNER |
1331                         V4L2_CAP_AUDIO     |
1332                         V4L2_CAP_RADIO     |
1333                         V4L2_CAP_READWRITE |
1334                         V4L2_CAP_STREAMING;
1335
1336         return 0;
1337 }
1338
1339 static int radio_g_tuner(struct file *file, void *priv,
1340                                         struct v4l2_tuner *t)
1341 {
1342         struct tm6000_fh *fh = file->private_data;
1343         struct tm6000_core *dev = fh->dev;
1344
1345         if (0 != t->index)
1346                 return -EINVAL;
1347
1348         memset(t, 0, sizeof(*t));
1349         strcpy(t->name, "Radio");
1350         t->type = V4L2_TUNER_RADIO;
1351         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1352
1353         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1354
1355         return 0;
1356 }
1357
1358 static int radio_s_tuner(struct file *file, void *priv,
1359                                         struct v4l2_tuner *t)
1360 {
1361         struct tm6000_fh *fh = file->private_data;
1362         struct tm6000_core *dev = fh->dev;
1363
1364         if (0 != t->index)
1365                 return -EINVAL;
1366
1367         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1368
1369         return 0;
1370 }
1371
1372 static int radio_enum_input(struct file *file, void *priv,
1373                                         struct v4l2_input *i)
1374 {
1375         struct tm6000_fh *fh = priv;
1376         struct tm6000_core *dev = fh->dev;
1377
1378         if (i->index != 0)
1379                 return -EINVAL;
1380
1381         if (!dev->rinput.type)
1382                 return -EINVAL;
1383
1384         strcpy(i->name, "Radio");
1385         i->type = V4L2_INPUT_TYPE_TUNER;
1386
1387         return 0;
1388 }
1389
1390 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1391 {
1392         struct tm6000_fh *fh = priv;
1393         struct tm6000_core *dev = fh->dev;
1394
1395         if (dev->input != 5)
1396                 return -EINVAL;
1397
1398         *i = dev->input - 5;
1399
1400         return 0;
1401 }
1402
1403 static int radio_g_audio(struct file *file, void *priv,
1404                                         struct v4l2_audio *a)
1405 {
1406         memset(a, 0, sizeof(*a));
1407         strcpy(a->name, "Radio");
1408         return 0;
1409 }
1410
1411 static int radio_s_audio(struct file *file, void *priv,
1412                                         struct v4l2_audio *a)
1413 {
1414         return 0;
1415 }
1416
1417 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1418 {
1419         struct tm6000_fh *fh = priv;
1420         struct tm6000_core *dev = fh->dev;
1421
1422         if (i)
1423                 return -EINVAL;
1424
1425         if (!dev->rinput.type)
1426                 return -EINVAL;
1427
1428         dev->input = i + 5;
1429
1430         return 0;
1431 }
1432
1433 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1434 {
1435         return 0;
1436 }
1437
1438 static int radio_queryctrl(struct file *file, void *priv,
1439                                         struct v4l2_queryctrl *c)
1440 {
1441         const struct v4l2_queryctrl *ctrl;
1442
1443         if (c->id <  V4L2_CID_BASE ||
1444             c->id >= V4L2_CID_LASTP1)
1445                 return -EINVAL;
1446         if (c->id == V4L2_CID_AUDIO_MUTE) {
1447                 ctrl = ctrl_by_id(c->id);
1448                 *c = *ctrl;
1449         } else
1450                 *c = no_ctrl;
1451
1452         return 0;
1453 }
1454
1455 /* ------------------------------------------------------------------
1456         File operations for the device
1457    ------------------------------------------------------------------*/
1458
1459 static int tm6000_open(struct file *file)
1460 {
1461         struct video_device *vdev = video_devdata(file);
1462         struct tm6000_core *dev = video_drvdata(file);
1463         struct tm6000_fh *fh;
1464         enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1465         int i, rc;
1466         int radio = 0;
1467
1468         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1469                 video_device_node_name(vdev));
1470
1471         switch (vdev->vfl_type) {
1472         case VFL_TYPE_GRABBER:
1473                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1474                 break;
1475         case VFL_TYPE_VBI:
1476                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1477                 break;
1478         case VFL_TYPE_RADIO:
1479                 radio = 1;
1480                 break;
1481         }
1482
1483         /* If more than one user, mutex should be added */
1484         dev->users++;
1485
1486         dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1487                 video_device_node_name(vdev), v4l2_type_names[type],
1488                 dev->users);
1489
1490         /* allocate + initialize per filehandle data */
1491         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1492         if (NULL == fh) {
1493                 dev->users--;
1494                 return -ENOMEM;
1495         }
1496
1497         file->private_data = fh;
1498         fh->dev      = dev;
1499         fh->radio    = radio;
1500         dev->radio   = radio;
1501         fh->type     = type;
1502         dev->fourcc  = format[0].fourcc;
1503
1504         fh->fmt      = format_by_fourcc(dev->fourcc);
1505
1506         tm6000_get_std_res(dev);
1507
1508         fh->width = dev->width;
1509         fh->height = dev->height;
1510
1511         dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1512                                                 "dev->vidq=0x%08lx\n",
1513                         (unsigned long)fh, (unsigned long)dev,
1514                         (unsigned long)&dev->vidq);
1515         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1516                                 "queued=%d\n", list_empty(&dev->vidq.queued));
1517         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1518                                 "active=%d\n", list_empty(&dev->vidq.active));
1519
1520         /* initialize hardware on analog mode */
1521         rc = tm6000_init_analog_mode(dev);
1522         if (rc < 0)
1523                 return rc;
1524
1525         if (dev->mode != TM6000_MODE_ANALOG) {
1526                 /* Put all controls at a sane state */
1527                 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1528                         qctl_regs[i] = tm6000_qctrl[i].default_value;
1529
1530                 dev->mode = TM6000_MODE_ANALOG;
1531         }
1532
1533         if (!fh->radio) {
1534                 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1535                                 NULL, &dev->slock,
1536                                 fh->type,
1537                                 V4L2_FIELD_INTERLACED,
1538                                 sizeof(struct tm6000_buffer), fh, &dev->lock);
1539         } else {
1540                 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1541                 dev->input = 5;
1542                 tm6000_set_audio_rinput(dev);
1543                 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1544                 tm6000_prepare_isoc(dev);
1545                 tm6000_start_thread(dev);
1546         }
1547
1548         return 0;
1549 }
1550
1551 static ssize_t
1552 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1553 {
1554         struct tm6000_fh        *fh = file->private_data;
1555
1556         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1557                 if (!res_get(fh->dev, fh, true))
1558                         return -EBUSY;
1559
1560                 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1561                                         file->f_flags & O_NONBLOCK);
1562         }
1563         return 0;
1564 }
1565
1566 static unsigned int
1567 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1568 {
1569         struct tm6000_fh        *fh = file->private_data;
1570         struct tm6000_buffer    *buf;
1571
1572         if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1573                 return POLLERR;
1574
1575         if (!!is_res_streaming(fh->dev, fh))
1576                 return POLLERR;
1577
1578         if (!is_res_read(fh->dev, fh)) {
1579                 /* streaming capture */
1580                 if (list_empty(&fh->vb_vidq.stream))
1581                         return POLLERR;
1582                 buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
1583         } else {
1584                 /* read() capture */
1585                 return videobuf_poll_stream(file, &fh->vb_vidq, wait);
1586         }
1587         poll_wait(file, &buf->vb.done, wait);
1588         if (buf->vb.state == VIDEOBUF_DONE ||
1589             buf->vb.state == VIDEOBUF_ERROR)
1590                 return POLLIN | POLLRDNORM;
1591         return 0;
1592 }
1593
1594 static int tm6000_release(struct file *file)
1595 {
1596         struct tm6000_fh         *fh = file->private_data;
1597         struct tm6000_core      *dev = fh->dev;
1598         struct video_device    *vdev = video_devdata(file);
1599
1600         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1601                 video_device_node_name(vdev), dev->users);
1602
1603         dev->users--;
1604
1605         res_free(dev, fh);
1606
1607         if (!dev->users) {
1608                 int err;
1609
1610                 tm6000_uninit_isoc(dev);
1611
1612                 if (!fh->radio)
1613                         videobuf_mmap_free(&fh->vb_vidq);
1614
1615                 err = tm6000_reset(dev);
1616                 if (err < 0)
1617                         dev_err(&vdev->dev, "reset failed: %d\n", err);
1618         }
1619
1620         kfree(fh);
1621
1622         return 0;
1623 }
1624
1625 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1626 {
1627         struct tm6000_fh *fh = file->private_data;
1628
1629         return videobuf_mmap_mapper(&fh->vb_vidq, vma);
1630 }
1631
1632 static struct v4l2_file_operations tm6000_fops = {
1633         .owner = THIS_MODULE,
1634         .open = tm6000_open,
1635         .release = tm6000_release,
1636         .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1637         .read = tm6000_read,
1638         .poll = tm6000_poll,
1639         .mmap = tm6000_mmap,
1640 };
1641
1642 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1643         .vidioc_querycap          = vidioc_querycap,
1644         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1645         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1646         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1647         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1648         .vidioc_s_std             = vidioc_s_std,
1649         .vidioc_enum_input        = vidioc_enum_input,
1650         .vidioc_g_input           = vidioc_g_input,
1651         .vidioc_s_input           = vidioc_s_input,
1652         .vidioc_queryctrl         = vidioc_queryctrl,
1653         .vidioc_g_ctrl            = vidioc_g_ctrl,
1654         .vidioc_s_ctrl            = vidioc_s_ctrl,
1655         .vidioc_g_tuner           = vidioc_g_tuner,
1656         .vidioc_s_tuner           = vidioc_s_tuner,
1657         .vidioc_g_frequency       = vidioc_g_frequency,
1658         .vidioc_s_frequency       = vidioc_s_frequency,
1659         .vidioc_streamon          = vidioc_streamon,
1660         .vidioc_streamoff         = vidioc_streamoff,
1661         .vidioc_reqbufs           = vidioc_reqbufs,
1662         .vidioc_querybuf          = vidioc_querybuf,
1663         .vidioc_qbuf              = vidioc_qbuf,
1664         .vidioc_dqbuf             = vidioc_dqbuf,
1665 };
1666
1667 static struct video_device tm6000_template = {
1668         .name           = "tm6000",
1669         .fops           = &tm6000_fops,
1670         .ioctl_ops      = &video_ioctl_ops,
1671         .release        = video_device_release,
1672         .tvnorms        = TM6000_STD,
1673         .current_norm   = V4L2_STD_NTSC_M,
1674 };
1675
1676 static const struct v4l2_file_operations radio_fops = {
1677         .owner          = THIS_MODULE,
1678         .open           = tm6000_open,
1679         .release        = tm6000_release,
1680         .unlocked_ioctl = video_ioctl2,
1681 };
1682
1683 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1684         .vidioc_querycap        = radio_querycap,
1685         .vidioc_g_tuner         = radio_g_tuner,
1686         .vidioc_enum_input      = radio_enum_input,
1687         .vidioc_g_audio         = radio_g_audio,
1688         .vidioc_s_tuner         = radio_s_tuner,
1689         .vidioc_s_audio         = radio_s_audio,
1690         .vidioc_s_input         = radio_s_input,
1691         .vidioc_s_std           = radio_s_std,
1692         .vidioc_queryctrl       = radio_queryctrl,
1693         .vidioc_g_input         = radio_g_input,
1694         .vidioc_g_ctrl          = vidioc_g_ctrl,
1695         .vidioc_s_ctrl          = vidioc_s_ctrl,
1696         .vidioc_g_frequency     = vidioc_g_frequency,
1697         .vidioc_s_frequency     = vidioc_s_frequency,
1698 };
1699
1700 static struct video_device tm6000_radio_template = {
1701         .name                   = "tm6000",
1702         .fops                   = &radio_fops,
1703         .ioctl_ops              = &radio_ioctl_ops,
1704 };
1705
1706 /* -----------------------------------------------------------------
1707  *      Initialization and module stuff
1708  * ------------------------------------------------------------------
1709  */
1710
1711 static struct video_device *vdev_init(struct tm6000_core *dev,
1712                 const struct video_device
1713                 *template, const char *type_name)
1714 {
1715         struct video_device *vfd;
1716
1717         vfd = video_device_alloc();
1718         if (NULL == vfd)
1719                 return NULL;
1720
1721         *vfd = *template;
1722         vfd->v4l2_dev = &dev->v4l2_dev;
1723         vfd->release = video_device_release;
1724         vfd->debug = tm6000_debug;
1725         vfd->lock = &dev->lock;
1726
1727         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1728
1729         video_set_drvdata(vfd, dev);
1730         return vfd;
1731 }
1732
1733 int tm6000_v4l2_register(struct tm6000_core *dev)
1734 {
1735         int ret = -1;
1736
1737         dev->vfd = vdev_init(dev, &tm6000_template, "video");
1738
1739         if (!dev->vfd) {
1740                 printk(KERN_INFO "%s: can't register video device\n",
1741                        dev->name);
1742                 return -ENOMEM;
1743         }
1744
1745         /* init video dma queues */
1746         INIT_LIST_HEAD(&dev->vidq.active);
1747         INIT_LIST_HEAD(&dev->vidq.queued);
1748
1749         ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1750
1751         if (ret < 0) {
1752                 printk(KERN_INFO "%s: can't register video device\n",
1753                        dev->name);
1754                 return ret;
1755         }
1756
1757         printk(KERN_INFO "%s: registered device %s\n",
1758                dev->name, video_device_node_name(dev->vfd));
1759
1760         if (dev->caps.has_radio) {
1761                 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1762                                                            "radio");
1763                 if (!dev->radio_dev) {
1764                         printk(KERN_INFO "%s: can't register radio device\n",
1765                                dev->name);
1766                         return ret; /* FIXME release resource */
1767                 }
1768
1769                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1770                                             radio_nr);
1771                 if (ret < 0) {
1772                         printk(KERN_INFO "%s: can't register radio device\n",
1773                                dev->name);
1774                         return ret; /* FIXME release resource */
1775                 }
1776
1777                 printk(KERN_INFO "%s: registered device %s\n",
1778                        dev->name, video_device_node_name(dev->radio_dev));
1779         }
1780
1781         printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1782         return ret;
1783 }
1784
1785 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1786 {
1787         video_unregister_device(dev->vfd);
1788
1789         if (dev->radio_dev) {
1790                 if (video_is_registered(dev->radio_dev))
1791                         video_unregister_device(dev->radio_dev);
1792                 else
1793                         video_device_release(dev->radio_dev);
1794                 dev->radio_dev = NULL;
1795         }
1796
1797         return 0;
1798 }
1799
1800 int tm6000_v4l2_exit(void)
1801 {
1802         return 0;
1803 }
1804
1805 module_param(video_nr, int, 0);
1806 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1807
1808 module_param_named(debug, tm6000_debug, int, 0444);
1809 MODULE_PARM_DESC(debug, "activates debug info");
1810
1811 module_param(vid_limit, int, 0644);
1812 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1813