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/usb.h>
  34 #include <linux/videodev2.h>
  35 #include <media/v4l2-ioctl.h>
  36 #include <media/tuner.h>
  37 #include <linux/interrupt.h>
  38 #include <linux/kthread.h>
  39 #include <linux/highmem.h>
  40 #include <linux/freezer.h>
  41
  42 #include "tm6000-regs.h"
  43 #include "tm6000.h"
  44
  45 #define BUFFER_TIMEOUT     msecs_to_jiffies(2000)  /* 2 seconds */
  46
  47 /* Limits minimum and default number of buffers */
  48 #define TM6000_MIN_BUF 4
  49 #define TM6000_DEF_BUF 8
  50
  51 #define TM6000_MAX_ISO_PACKETS  46      /* Max number of ISO packets */
  52
  53 /* Declare static vars that will be used as parameters */
  54 static unsigned int vid_limit = 16;     /* Video memory limit, in Mb */
  55 static int video_nr = -1;               /* /dev/videoN, -1 for autodetect */
  56 static int radio_nr = -1;               /* /dev/radioN, -1 for autodetect */
  57
  58 /* Debug level */
  59 int tm6000_debug;
  60 EXPORT_SYMBOL_GPL(tm6000_debug);
  61
  62 static const struct v4l2_queryctrl no_ctrl = {
  63         .name  = "42",
  64         .flags = V4L2_CTRL_FLAG_DISABLED,
  65 };
  66
  67 /* supported controls */
  68 static struct v4l2_queryctrl tm6000_qctrl[] = {
  69         {
  70                 .id            = V4L2_CID_BRIGHTNESS,
  71                 .type          = V4L2_CTRL_TYPE_INTEGER,
  72                 .name          = "Brightness",
  73                 .minimum       = 0,
  74                 .maximum       = 255,
  75                 .step          = 1,
  76                 .default_value = 54,
  77                 .flags         = 0,
  78         }, {
  79                 .id            = V4L2_CID_CONTRAST,
  80                 .type          = V4L2_CTRL_TYPE_INTEGER,
  81                 .name          = "Contrast",
  82                 .minimum       = 0,
  83                 .maximum       = 255,
  84                 .step          = 0x1,
  85                 .default_value = 119,
  86                 .flags         = 0,
  87         }, {
  88                 .id            = V4L2_CID_SATURATION,
  89                 .type          = V4L2_CTRL_TYPE_INTEGER,
  90                 .name          = "Saturation",
  91                 .minimum       = 0,
  92                 .maximum       = 255,
  93                 .step          = 0x1,
  94                 .default_value = 112,
  95                 .flags         = 0,
  96         }, {
  97                 .id            = V4L2_CID_HUE,
  98                 .type          = V4L2_CTRL_TYPE_INTEGER,
  99                 .name          = "Hue",
 100                 .minimum       = -128,
 101                 .maximum       = 127,
 102                 .step          = 0x1,
 103                 .default_value = 0,
 104                 .flags         = 0,
 105         },
 106                 /* --- audio --- */
 107         {
 108                 .id            = V4L2_CID_AUDIO_MUTE,
 109                 .name          = "Mute",
 110                 .minimum       = 0,
 111                 .maximum       = 1,
 112                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 113         }, {
 114                 .id            = V4L2_CID_AUDIO_VOLUME,
 115                 .name          = "Volume",
 116                 .minimum       = -15,
 117                 .maximum       = 15,
 118                 .step          = 1,
 119                 .default_value = 0,
 120                 .type          = V4L2_CTRL_TYPE_INTEGER,
 121         }
 122 };
 123
 124 static const unsigned int CTRLS = ARRAY_SIZE(tm6000_qctrl);
 125 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
 126
 127 static struct tm6000_fmt format[] = {
 128         {
 129                 .name     = "4:2:2, packed, YVY2",
 130                 .fourcc   = V4L2_PIX_FMT_YUYV,
 131                 .depth    = 16,
 132         }, {
 133                 .name     = "4:2:2, packed, UYVY",
 134                 .fourcc   = V4L2_PIX_FMT_UYVY,
 135                 .depth    = 16,
 136         }, {
 137                 .name     = "A/V + VBI mux packet",
 138                 .fourcc   = V4L2_PIX_FMT_TM6000,
 139                 .depth    = 16,
 140         }
 141 };
 142
 143 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
 144 {
 145         unsigned int i;
 146
 147         for (i = 0; i < CTRLS; i++)
 148                 if (tm6000_qctrl[i].id == id)
 149                         return tm6000_qctrl+i;
 150         return NULL;
 151 }
 152
 153 /* ------------------------------------------------------------------
 154  *      DMA and thread functions
 155  * ------------------------------------------------------------------
 156  */
 157
 158 #define norm_maxw(a) 720
 159 #define norm_maxh(a) 576
 160
 161 #define norm_minw(a) norm_maxw(a)
 162 #define norm_minh(a) norm_maxh(a)
 163
 164 /*
 165  * video-buf generic routine to get the next available buffer
 166  */
 167 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
 168                                struct tm6000_buffer   **buf)
 169 {
 170         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 171         char *outp;
 172
 173         if (list_empty(&dma_q->active)) {
 174                 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
 175                 *buf = NULL;
 176                 return;
 177         }
 178
 179         *buf = list_entry(dma_q->active.next,
 180                         struct tm6000_buffer, vb.queue);
 181
 182         /* Cleans up buffer - Useful for testing for frame/URB loss */
 183         outp = videobuf_to_vmalloc(&(*buf)->vb);
 184
 185         return;
 186 }
 187
 188 /*
 189  * Announces that a buffer were filled and request the next
 190  */
 191 static inline void buffer_filled(struct tm6000_core *dev,
 192                                  struct tm6000_dmaqueue *dma_q,
 193                                  struct tm6000_buffer *buf)
 194 {
 195         /* Advice that buffer was filled */
 196         dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
 197         buf->vb.state = VIDEOBUF_DONE;
 198         buf->vb.field_count++;
 199         do_gettimeofday(&buf->vb.ts);
 200
 201         list_del(&buf->vb.queue);
 202         wake_up(&buf->vb.done);
 203 }
 204
 205 const char *tm6000_msg_type[] = {
 206         "unknown(0)",   /* 0 */
 207         "video",        /* 1 */
 208         "audio",        /* 2 */
 209         "vbi",          /* 3 */
 210         "pts",          /* 4 */
 211         "err",          /* 5 */
 212         "unknown(6)",   /* 6 */
 213         "unknown(7)",   /* 7 */
 214 };
 215
 216 /*
 217  * Identify the tm5600/6000 buffer header type and properly handles
 218  */
 219 static int copy_streams(u8 *data, unsigned long len,
 220                         struct urb *urb)
 221 {
 222         struct tm6000_dmaqueue  *dma_q = urb->context;
 223         struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
 224         u8 *ptr = data, *endp = data+len, c;
 225         unsigned long header = 0;
 226         int rc = 0;
 227         unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
 228         struct tm6000_buffer *vbuf = NULL;
 229         char *voutp = NULL;
 230         unsigned int linewidth;
 231
 232         if (!dev->radio) {
 233                 /* get video buffer */
 234                 get_next_buf(dma_q, &vbuf);
 235
 236                 if (!vbuf)
 237                         return rc;
 238                 voutp = videobuf_to_vmalloc(&vbuf->vb);
 239
 240                 if (!voutp)
 241                         return 0;
 242         }
 243
 244         for (ptr = data; ptr < endp;) {
 245                 if (!dev->isoc_ctl.cmd) {
 246                         /* Header */
 247                         if (dev->isoc_ctl.tmp_buf_len > 0) {
 248                                 /* from last urb or packet */
 249                                 header = dev->isoc_ctl.tmp_buf;
 250                                 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
 251                                         memcpy((u8 *)&header +
 252                                                 dev->isoc_ctl.tmp_buf_len,
 253                                                 ptr,
 254                                                 4 - dev->isoc_ctl.tmp_buf_len);
 255                                         ptr += 4 - dev->isoc_ctl.tmp_buf_len;
 256                                 }
 257                                 dev->isoc_ctl.tmp_buf_len = 0;
 258                         } else {
 259                                 if (ptr + 3 >= endp) {
 260                                         /* have incomplete header */
 261                                         dev->isoc_ctl.tmp_buf_len = endp - ptr;
 262                                         memcpy(&dev->isoc_ctl.tmp_buf, ptr,
 263                                                 dev->isoc_ctl.tmp_buf_len);
 264                                         return rc;
 265                                 }
 266                                 /* Seek for sync */
 267                                 for (; ptr < endp - 3; ptr++) {
 268                                         if (*(ptr + 3) == 0x47)
 269                                                 break;
 270                                 }
 271                                 /* Get message header */
 272                                 header = *(unsigned long *)ptr;
 273                                 ptr += 4;
 274                         }
 275
 276                         /* split the header fields */
 277                         c = (header >> 24) & 0xff;
 278                         size = ((header & 0x7e) << 1);
 279                         if (size > 0)
 280                                 size -= 4;
 281                         block = (header >> 7) & 0xf;
 282                         field = (header >> 11) & 0x1;
 283                         line  = (header >> 12) & 0x1ff;
 284                         cmd   = (header >> 21) & 0x7;
 285                         /* Validates haeder fields */
 286                         if (size > TM6000_URB_MSG_LEN)
 287                                 size = TM6000_URB_MSG_LEN;
 288                         pktsize = TM6000_URB_MSG_LEN;
 289                         /* calculate position in buffer
 290                          * and change the buffer
 291                          */
 292                         switch (cmd) {
 293                         case TM6000_URB_MSG_VIDEO:
 294                                 if (!dev->radio) {
 295                                         if ((dev->isoc_ctl.vfield != field) &&
 296                                                 (field == 1)) {
 297                                         /* Announces that a new buffer
 298                                          * were filled
 299                                          */
 300                                                 buffer_filled(dev, dma_q, vbuf);
 301                                                 dprintk(dev, V4L2_DEBUG_ISOC,
 302                                                         "new buffer filled\n");
 303                                                 get_next_buf(dma_q, &vbuf);
 304                                                 if (!vbuf)
 305                                                         return rc;
 306                                                 voutp = videobuf_to_vmalloc(&vbuf->vb);
 307                                                 if (!voutp)
 308                                                         return rc;
 309                                                 memset(voutp, 0, vbuf->vb.size);
 310                                         }
 311                                         linewidth = vbuf->vb.width << 1;
 312                                         pos = ((line << 1) - field - 1) *
 313                                         linewidth + block * TM6000_URB_MSG_LEN;
 314                                         /* Don't allow to write out of the buffer */
 315                                         if (pos + size > vbuf->vb.size)
 316                                                 cmd = TM6000_URB_MSG_ERR;
 317                                         dev->isoc_ctl.vfield = field;
 318                                 }
 319                                 break;
 320                         case TM6000_URB_MSG_VBI:
 321                                 break;
 322                         case TM6000_URB_MSG_AUDIO:
 323                         case TM6000_URB_MSG_PTS:
 324                                 size = pktsize;         /* Size is always 180 bytes */
 325                                 break;
 326                         }
 327                 } else {
 328                         /* Continue the last copy */
 329                         cmd = dev->isoc_ctl.cmd;
 330                         size = dev->isoc_ctl.size;
 331                         pos = dev->isoc_ctl.pos;
 332                         pktsize = dev->isoc_ctl.pktsize;
 333                         field = dev->isoc_ctl.field;
 334                 }
 335                 cpysize = (endp - ptr > size) ? size : endp - ptr;
 336                 if (cpysize) {
 337                         /* copy data in different buffers */
 338                         switch (cmd) {
 339                         case TM6000_URB_MSG_VIDEO:
 340                                 /* Fills video buffer */
 341                                 if (vbuf)
 342                                         memcpy(&voutp[pos], ptr, cpysize);
 343                                 break;
 344                         case TM6000_URB_MSG_AUDIO: {
 345                                 int i;
 346                                 for (i = 0; i < cpysize; i += 2)
 347                                         swab16s((u16 *)(ptr + i));
 348
 349                                 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
 350                                 break;
 351                         }
 352                         case TM6000_URB_MSG_VBI:
 353                                 /* Need some code to copy vbi buffer */
 354                                 break;
 355                         case TM6000_URB_MSG_PTS: {
 356                                 /* Need some code to copy pts */
 357                                 u32 pts;
 358                                 pts = *(u32 *)ptr;
 359                                 dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
 360                                         field, pts);
 361                                 break;
 362                         }
 363                         }
 364                 }
 365                 if (ptr + pktsize > endp) {
 366                         /* End of URB packet, but cmd processing is not
 367                          * complete. Preserve the state for a next packet
 368                          */
 369                         dev->isoc_ctl.pos = pos + cpysize;
 370                         dev->isoc_ctl.size = size - cpysize;
 371                         dev->isoc_ctl.cmd = cmd;
 372                         dev->isoc_ctl.field = field;
 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                 rc = videobuf_iolock(vq, &buf->vb, NULL);
 777                 if (rc != 0)
 778                         goto fail;
 779                 urb_init = 1;
 780         }
 781
 782         if (!dev->isoc_ctl.num_bufs)
 783                 urb_init = 1;
 784
 785         if (urb_init) {
 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         if (i != fh->type)
1059                 return -EINVAL;
1060
1061         videobuf_streamoff(&fh->vb_vidq);
1062         res_free(dev, fh);
1063
1064         return 0;
1065 }
1066
1067 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1068 {
1069         int rc = 0;
1070         struct tm6000_fh   *fh = priv;
1071         struct tm6000_core *dev = fh->dev;
1072
1073         dev->norm = *norm;
1074         rc = tm6000_init_analog_mode(dev);
1075
1076         fh->width  = dev->width;
1077         fh->height = dev->height;
1078
1079         if (rc < 0)
1080                 return rc;
1081
1082         v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1083
1084         return 0;
1085 }
1086
1087 static const char *iname[] = {
1088         [TM6000_INPUT_TV] = "Television",
1089         [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1090         [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1091         [TM6000_INPUT_SVIDEO] = "S-Video",
1092 };
1093
1094 static int vidioc_enum_input(struct file *file, void *priv,
1095                                 struct v4l2_input *i)
1096 {
1097         struct tm6000_fh   *fh = priv;
1098         struct tm6000_core *dev = fh->dev;
1099         unsigned int n;
1100
1101         n = i->index;
1102         if (n >= 3)
1103                 return -EINVAL;
1104
1105         if (!dev->vinput[n].type)
1106                 return -EINVAL;
1107
1108         i->index = n;
1109
1110         if (dev->vinput[n].type == TM6000_INPUT_TV)
1111                 i->type = V4L2_INPUT_TYPE_TUNER;
1112         else
1113                 i->type = V4L2_INPUT_TYPE_CAMERA;
1114
1115         strcpy(i->name, iname[dev->vinput[n].type]);
1116
1117         i->std = TM6000_STD;
1118
1119         return 0;
1120 }
1121
1122 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1123 {
1124         struct tm6000_fh   *fh = priv;
1125         struct tm6000_core *dev = fh->dev;
1126
1127         *i = dev->input;
1128
1129         return 0;
1130 }
1131
1132 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1133 {
1134         struct tm6000_fh   *fh = priv;
1135         struct tm6000_core *dev = fh->dev;
1136         int rc = 0;
1137
1138         if (i >= 3)
1139                 return -EINVAL;
1140         if (!dev->vinput[i].type)
1141                 return -EINVAL;
1142
1143         dev->input = i;
1144
1145         rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1146
1147         return rc;
1148 }
1149
1150 /* --- controls ---------------------------------------------- */
1151 static int vidioc_queryctrl(struct file *file, void *priv,
1152                                 struct v4l2_queryctrl *qc)
1153 {
1154         int i;
1155
1156         for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1157                 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1158                         memcpy(qc, &(tm6000_qctrl[i]),
1159                                 sizeof(*qc));
1160                         return 0;
1161                 }
1162
1163         return -EINVAL;
1164 }
1165
1166 static int vidioc_g_ctrl(struct file *file, void *priv,
1167                                 struct v4l2_control *ctrl)
1168 {
1169         struct tm6000_fh  *fh = priv;
1170         struct tm6000_core *dev    = fh->dev;
1171         int  val;
1172
1173         /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1174         switch (ctrl->id) {
1175         case V4L2_CID_CONTRAST:
1176                 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1177                 break;
1178         case V4L2_CID_BRIGHTNESS:
1179                 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1180                 return 0;
1181         case V4L2_CID_SATURATION:
1182                 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1183                 return 0;
1184         case V4L2_CID_HUE:
1185                 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1186                 return 0;
1187         case V4L2_CID_AUDIO_MUTE:
1188                 val = dev->ctl_mute;
1189                 return 0;
1190         case V4L2_CID_AUDIO_VOLUME:
1191                 val = dev->ctl_volume;
1192                 return 0;
1193         default:
1194                 return -EINVAL;
1195         }
1196
1197         if (val < 0)
1198                 return val;
1199
1200         ctrl->value = val;
1201
1202         return 0;
1203 }
1204 static int vidioc_s_ctrl(struct file *file, void *priv,
1205                                 struct v4l2_control *ctrl)
1206 {
1207         struct tm6000_fh   *fh  = priv;
1208         struct tm6000_core *dev = fh->dev;
1209         u8  val = ctrl->value;
1210
1211         switch (ctrl->id) {
1212         case V4L2_CID_CONTRAST:
1213                 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1214                 return 0;
1215         case V4L2_CID_BRIGHTNESS:
1216                 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1217                 return 0;
1218         case V4L2_CID_SATURATION:
1219                 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1220                 return 0;
1221         case V4L2_CID_HUE:
1222                 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1223                 return 0;
1224         case V4L2_CID_AUDIO_MUTE:
1225                 dev->ctl_mute = val;
1226                 tm6000_tvaudio_set_mute(dev, val);
1227                 return 0;
1228         case V4L2_CID_AUDIO_VOLUME:
1229                 dev->ctl_volume = val;
1230                 tm6000_set_volume(dev, val);
1231                 return 0;
1232         }
1233         return -EINVAL;
1234 }
1235
1236 static int vidioc_g_tuner(struct file *file, void *priv,
1237                                 struct v4l2_tuner *t)
1238 {
1239         struct tm6000_fh   *fh  = priv;
1240         struct tm6000_core *dev = fh->dev;
1241
1242         if (unlikely(UNSET == dev->tuner_type))
1243                 return -EINVAL;
1244         if (0 != t->index)
1245                 return -EINVAL;
1246
1247         strcpy(t->name, "Television");
1248         t->type       = V4L2_TUNER_ANALOG_TV;
1249         t->capability = V4L2_TUNER_CAP_NORM;
1250         t->rangehigh  = 0xffffffffUL;
1251         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1252
1253         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1254
1255         t->audmode = dev->amode;
1256
1257         return 0;
1258 }
1259
1260 static int vidioc_s_tuner(struct file *file, void *priv,
1261                                 struct v4l2_tuner *t)
1262 {
1263         struct tm6000_fh   *fh  = priv;
1264         struct tm6000_core *dev = fh->dev;
1265
1266         if (UNSET == dev->tuner_type)
1267                 return -EINVAL;
1268         if (0 != t->index)
1269                 return -EINVAL;
1270
1271         dev->amode = t->audmode;
1272         dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1273
1274         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1275
1276         return 0;
1277 }
1278
1279 static int vidioc_g_frequency(struct file *file, void *priv,
1280                                 struct v4l2_frequency *f)
1281 {
1282         struct tm6000_fh   *fh  = priv;
1283         struct tm6000_core *dev = fh->dev;
1284
1285         if (unlikely(UNSET == dev->tuner_type))
1286                 return -EINVAL;
1287
1288         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1289         f->frequency = dev->freq;
1290
1291         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1292
1293         return 0;
1294 }
1295
1296 static int vidioc_s_frequency(struct file *file, void *priv,
1297                                 struct v4l2_frequency *f)
1298 {
1299         struct tm6000_fh   *fh  = priv;
1300         struct tm6000_core *dev = fh->dev;
1301
1302         if (unlikely(UNSET == dev->tuner_type))
1303                 return -EINVAL;
1304         if (unlikely(f->tuner != 0))
1305                 return -EINVAL;
1306         if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1307                 return -EINVAL;
1308         if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1309                 return -EINVAL;
1310
1311         dev->freq = f->frequency;
1312         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1313
1314         return 0;
1315 }
1316
1317 static int radio_querycap(struct file *file, void *priv,
1318                                         struct v4l2_capability *cap)
1319 {
1320         struct tm6000_fh *fh = file->private_data;
1321         struct tm6000_core *dev = fh->dev;
1322
1323         strcpy(cap->driver, "tm6000");
1324         strlcpy(cap->card, dev->name, sizeof(dev->name));
1325         sprintf(cap->bus_info, "USB%04x:%04x",
1326                 le16_to_cpu(dev->udev->descriptor.idVendor),
1327                 le16_to_cpu(dev->udev->descriptor.idProduct));
1328         cap->version = dev->dev_type;
1329         cap->capabilities = V4L2_CAP_TUNER |
1330                         V4L2_CAP_AUDIO     |
1331                         V4L2_CAP_RADIO     |
1332                         V4L2_CAP_READWRITE |
1333                         V4L2_CAP_STREAMING;
1334
1335         return 0;
1336 }
1337
1338 static int radio_g_tuner(struct file *file, void *priv,
1339                                         struct v4l2_tuner *t)
1340 {
1341         struct tm6000_fh *fh = file->private_data;
1342         struct tm6000_core *dev = fh->dev;
1343
1344         if (0 != t->index)
1345                 return -EINVAL;
1346
1347         memset(t, 0, sizeof(*t));
1348         strcpy(t->name, "Radio");
1349         t->type = V4L2_TUNER_RADIO;
1350         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1351
1352         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1353
1354         return 0;
1355 }
1356
1357 static int radio_s_tuner(struct file *file, void *priv,
1358                                         struct v4l2_tuner *t)
1359 {
1360         struct tm6000_fh *fh = file->private_data;
1361         struct tm6000_core *dev = fh->dev;
1362
1363         if (0 != t->index)
1364                 return -EINVAL;
1365
1366         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1367
1368         return 0;
1369 }
1370
1371 static int radio_enum_input(struct file *file, void *priv,
1372                                         struct v4l2_input *i)
1373 {
1374         struct tm6000_fh *fh = priv;
1375         struct tm6000_core *dev = fh->dev;
1376
1377         if (i->index != 0)
1378                 return -EINVAL;
1379
1380         if (!dev->rinput.type)
1381                 return -EINVAL;
1382
1383         strcpy(i->name, "Radio");
1384         i->type = V4L2_INPUT_TYPE_TUNER;
1385
1386         return 0;
1387 }
1388
1389 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1390 {
1391         struct tm6000_fh *fh = priv;
1392         struct tm6000_core *dev = fh->dev;
1393
1394         if (dev->input != 5)
1395                 return -EINVAL;
1396
1397         *i = dev->input - 5;
1398
1399         return 0;
1400 }
1401
1402 static int radio_g_audio(struct file *file, void *priv,
1403                                         struct v4l2_audio *a)
1404 {
1405         memset(a, 0, sizeof(*a));
1406         strcpy(a->name, "Radio");
1407         return 0;
1408 }
1409
1410 static int radio_s_audio(struct file *file, void *priv,
1411                                         struct v4l2_audio *a)
1412 {
1413         return 0;
1414 }
1415
1416 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1417 {
1418         struct tm6000_fh *fh = priv;
1419         struct tm6000_core *dev = fh->dev;
1420
1421         if (i)
1422                 return -EINVAL;
1423
1424         if (!dev->rinput.type)
1425                 return -EINVAL;
1426
1427         dev->input = i + 5;
1428
1429         return 0;
1430 }
1431
1432 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1433 {
1434         return 0;
1435 }
1436
1437 static int radio_queryctrl(struct file *file, void *priv,
1438                                         struct v4l2_queryctrl *c)
1439 {
1440         const struct v4l2_queryctrl *ctrl;
1441
1442         if (c->id <  V4L2_CID_BASE ||
1443             c->id >= V4L2_CID_LASTP1)
1444                 return -EINVAL;
1445         if (c->id == V4L2_CID_AUDIO_MUTE) {
1446                 ctrl = ctrl_by_id(c->id);
1447                 *c = *ctrl;
1448         } else
1449                 *c = no_ctrl;
1450
1451         return 0;
1452 }
1453
1454 /* ------------------------------------------------------------------
1455         File operations for the device
1456    ------------------------------------------------------------------*/
1457
1458 static int tm6000_open(struct file *file)
1459 {
1460         struct video_device *vdev = video_devdata(file);
1461         struct tm6000_core *dev = video_drvdata(file);
1462         struct tm6000_fh *fh;
1463         enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1464         int i, rc;
1465         int radio = 0;
1466
1467         printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1468                 video_device_node_name(vdev));
1469
1470         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1471                 video_device_node_name(vdev));
1472
1473         switch (vdev->vfl_type) {
1474         case VFL_TYPE_GRABBER:
1475                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1476                 break;
1477         case VFL_TYPE_VBI:
1478                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1479                 break;
1480         case VFL_TYPE_RADIO:
1481                 radio = 1;
1482                 break;
1483         }
1484
1485         /* If more than one user, mutex should be added */
1486         dev->users++;
1487
1488         dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1489                 video_device_node_name(vdev), v4l2_type_names[type],
1490                 dev->users);
1491
1492         /* allocate + initialize per filehandle data */
1493         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1494         if (NULL == fh) {
1495                 dev->users--;
1496                 return -ENOMEM;
1497         }
1498
1499         file->private_data = fh;
1500         fh->dev      = dev;
1501         fh->radio    = radio;
1502         dev->radio   = radio;
1503         fh->type     = type;
1504         dev->fourcc  = format[0].fourcc;
1505
1506         fh->fmt      = format_by_fourcc(dev->fourcc);
1507
1508         tm6000_get_std_res(dev);
1509
1510         fh->width    = dev->width;
1511         fh->height   = dev->height;
1512
1513         dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1514                                                 "dev->vidq=0x%08lx\n",
1515                 (unsigned long)fh, (unsigned long)dev, (unsigned long)&dev->vidq);
1516         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1517                                 "queued=%d\n", list_empty(&dev->vidq.queued));
1518         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1519                                 "active=%d\n", list_empty(&dev->vidq.active));
1520
1521         /* initialize hardware on analog mode */
1522         rc = tm6000_init_analog_mode(dev);
1523         if (rc < 0)
1524                 return rc;
1525
1526         if (dev->mode != TM6000_MODE_ANALOG) {
1527                 /* Put all controls at a sane state */
1528                 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1529                         qctl_regs[i] = tm6000_qctrl[i].default_value;
1530
1531                 dev->mode = TM6000_MODE_ANALOG;
1532         }
1533
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
1540         if (fh->radio) {
1541                 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1542                 dev->input = 5;
1543                 tm6000_set_audio_rinput(dev);
1544                 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1545                 tm6000_prepare_isoc(dev);
1546                 tm6000_start_thread(dev);
1547         }
1548
1549         return 0;
1550 }
1551
1552 static ssize_t
1553 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1554 {
1555         struct tm6000_fh        *fh = file->private_data;
1556
1557         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1558                 if (!res_get(fh->dev, fh, true))
1559                         return -EBUSY;
1560
1561                 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1562                                         file->f_flags & O_NONBLOCK);
1563         }
1564         return 0;
1565 }
1566
1567 static unsigned int
1568 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1569 {
1570         struct tm6000_fh        *fh = file->private_data;
1571         struct tm6000_buffer    *buf;
1572
1573         if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1574                 return POLLERR;
1575
1576         if (!!is_res_streaming(fh->dev, fh))
1577                 return POLLERR;
1578
1579         if (!is_res_read(fh->dev, fh)) {
1580                 /* streaming capture */
1581                 if (list_empty(&fh->vb_vidq.stream))
1582                         return POLLERR;
1583                 buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
1584         } else {
1585                 /* read() capture */
1586                 return videobuf_poll_stream(file, &fh->vb_vidq,
1587                                             wait);
1588         }
1589         poll_wait(file, &buf->vb.done, wait);
1590         if (buf->vb.state == VIDEOBUF_DONE ||
1591             buf->vb.state == VIDEOBUF_ERROR)
1592                 return POLLIN | POLLRDNORM;
1593         return 0;
1594 }
1595
1596 static int tm6000_release(struct file *file)
1597 {
1598         struct tm6000_fh         *fh = file->private_data;
1599         struct tm6000_core      *dev = fh->dev;
1600         struct video_device    *vdev = video_devdata(file);
1601
1602         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1603                 video_device_node_name(vdev), dev->users);
1604
1605         dev->users--;
1606
1607         res_free(dev, fh);
1608         if (!dev->users) {
1609                 tm6000_uninit_isoc(dev);
1610                 videobuf_mmap_free(&fh->vb_vidq);
1611         }
1612
1613         kfree(fh);
1614
1615         return 0;
1616 }
1617
1618 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1619 {
1620         struct tm6000_fh        *fh = file->private_data;
1621         int ret;
1622
1623         ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1624
1625         return ret;
1626 }
1627
1628 static struct v4l2_file_operations tm6000_fops = {
1629         .owner          = THIS_MODULE,
1630         .open           = tm6000_open,
1631         .release        = tm6000_release,
1632         .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1633         .read           = tm6000_read,
1634         .poll           = tm6000_poll,
1635         .mmap           = tm6000_mmap,
1636 };
1637
1638 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1639         .vidioc_querycap          = vidioc_querycap,
1640         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1641         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1642         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1643         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1644         .vidioc_s_std             = vidioc_s_std,
1645         .vidioc_enum_input        = vidioc_enum_input,
1646         .vidioc_g_input           = vidioc_g_input,
1647         .vidioc_s_input           = vidioc_s_input,
1648         .vidioc_queryctrl         = vidioc_queryctrl,
1649         .vidioc_g_ctrl            = vidioc_g_ctrl,
1650         .vidioc_s_ctrl            = vidioc_s_ctrl,
1651         .vidioc_g_tuner           = vidioc_g_tuner,
1652         .vidioc_s_tuner           = vidioc_s_tuner,
1653         .vidioc_g_frequency       = vidioc_g_frequency,
1654         .vidioc_s_frequency       = vidioc_s_frequency,
1655         .vidioc_streamon          = vidioc_streamon,
1656         .vidioc_streamoff         = vidioc_streamoff,
1657         .vidioc_reqbufs           = vidioc_reqbufs,
1658         .vidioc_querybuf          = vidioc_querybuf,
1659         .vidioc_qbuf              = vidioc_qbuf,
1660         .vidioc_dqbuf             = vidioc_dqbuf,
1661 };
1662
1663 static struct video_device tm6000_template = {
1664         .name           = "tm6000",
1665         .fops           = &tm6000_fops,
1666         .ioctl_ops      = &video_ioctl_ops,
1667         .release        = video_device_release,
1668         .tvnorms        = TM6000_STD,
1669         .current_norm   = V4L2_STD_NTSC_M,
1670 };
1671
1672 static const struct v4l2_file_operations radio_fops = {
1673         .owner          = THIS_MODULE,
1674         .open           = tm6000_open,
1675         .release        = tm6000_release,
1676         .unlocked_ioctl = video_ioctl2,
1677 };
1678
1679 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1680         .vidioc_querycap        = radio_querycap,
1681         .vidioc_g_tuner         = radio_g_tuner,
1682         .vidioc_enum_input      = radio_enum_input,
1683         .vidioc_g_audio         = radio_g_audio,
1684         .vidioc_s_tuner         = radio_s_tuner,
1685         .vidioc_s_audio         = radio_s_audio,
1686         .vidioc_s_input         = radio_s_input,
1687         .vidioc_s_std           = radio_s_std,
1688         .vidioc_queryctrl       = radio_queryctrl,
1689         .vidioc_g_input         = radio_g_input,
1690         .vidioc_g_ctrl          = vidioc_g_ctrl,
1691         .vidioc_s_ctrl          = vidioc_s_ctrl,
1692         .vidioc_g_frequency     = vidioc_g_frequency,
1693         .vidioc_s_frequency     = vidioc_s_frequency,
1694 };
1695
1696 struct video_device tm6000_radio_template = {
1697         .name                   = "tm6000",
1698         .fops                   = &radio_fops,
1699         .ioctl_ops              = &radio_ioctl_ops,
1700 };
1701
1702 /* -----------------------------------------------------------------
1703  *      Initialization and module stuff
1704  * ------------------------------------------------------------------
1705  */
1706
1707 static struct video_device *vdev_init(struct tm6000_core *dev,
1708                 const struct video_device
1709                 *template, const char *type_name)
1710 {
1711         struct video_device *vfd;
1712
1713         vfd = video_device_alloc();
1714         if (NULL == vfd)
1715                 return NULL;
1716
1717         *vfd = *template;
1718         vfd->v4l2_dev = &dev->v4l2_dev;
1719         vfd->release = video_device_release;
1720         vfd->debug = tm6000_debug;
1721         vfd->lock = &dev->lock;
1722
1723         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1724
1725         video_set_drvdata(vfd, dev);
1726         return vfd;
1727 }
1728
1729 int tm6000_v4l2_register(struct tm6000_core *dev)
1730 {
1731         int ret = -1;
1732
1733         dev->vfd = vdev_init(dev, &tm6000_template, "video");
1734
1735         if (!dev->vfd) {
1736                 printk(KERN_INFO "%s: can't register video device\n",
1737                        dev->name);
1738                 return -ENOMEM;
1739         }
1740
1741         /* init video dma queues */
1742         INIT_LIST_HEAD(&dev->vidq.active);
1743         INIT_LIST_HEAD(&dev->vidq.queued);
1744
1745         ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1746
1747         if (ret < 0) {
1748                 printk(KERN_INFO "%s: can't register video device\n",
1749                        dev->name);
1750                 return ret;
1751         }
1752
1753         printk(KERN_INFO "%s: registered device %s\n",
1754                dev->name, video_device_node_name(dev->vfd));
1755
1756         if (dev->caps.has_radio) {
1757                 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1758                                                            "radio");
1759                 if (!dev->radio_dev) {
1760                         printk(KERN_INFO "%s: can't register radio device\n",
1761                                dev->name);
1762                         return ret; /* FIXME release resource */
1763                 }
1764
1765                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1766                                             radio_nr);
1767                 if (ret < 0) {
1768                         printk(KERN_INFO "%s: can't register radio device\n",
1769                                dev->name);
1770                         return ret; /* FIXME release resource */
1771                 }
1772
1773                 printk(KERN_INFO "%s: registered device %s\n",
1774                        dev->name, video_device_node_name(dev->radio_dev));
1775         }
1776
1777         printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1778         return ret;
1779 }
1780
1781 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1782 {
1783         video_unregister_device(dev->vfd);
1784
1785         if (dev->radio_dev) {
1786                 if (video_is_registered(dev->radio_dev))
1787                         video_unregister_device(dev->radio_dev);
1788                 else
1789                         video_device_release(dev->radio_dev);
1790                 dev->radio_dev = NULL;
1791         }
1792
1793         return 0;
1794 }
1795
1796 int tm6000_v4l2_exit(void)
1797 {
1798         return 0;
1799 }
1800
1801 module_param(video_nr, int, 0);
1802 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1803
1804 module_param_named(debug, tm6000_debug, int, 0444);
1805 MODULE_PARM_DESC(debug, "activates debug info");
1806
1807 module_param(vid_limit, int, 0644);
1808 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1809