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         if (!dev)
 517                 return;
 518
 519         spin_lock(&dev->slock);
 520         tm6000_isoc_copy(urb);
 521         spin_unlock(&dev->slock);
 522
 523         /* Reset urb buffers */
 524         for (i = 0; i < urb->number_of_packets; i++) {
 525                 urb->iso_frame_desc[i].status = 0;
 526                 urb->iso_frame_desc[i].actual_length = 0;
 527         }
 528
 529         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 530         if (urb->status)
 531                 tm6000_err("urb resubmit failed (error=%i)\n",
 532                         urb->status);
 533 }
 534
 535 /*
 536  * Stop and Deallocate URBs
 537  */
 538 static void tm6000_uninit_isoc(struct tm6000_core *dev)
 539 {
 540         struct urb *urb;
 541         int i;
 542
 543         dev->isoc_ctl.buf = NULL;
 544         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 545                 urb = dev->isoc_ctl.urb[i];
 546                 if (urb) {
 547                         usb_kill_urb(urb);
 548                         usb_unlink_urb(urb);
 549                         if (dev->isoc_ctl.transfer_buffer[i]) {
 550                                 usb_free_coherent(dev->udev,
 551                                                 urb->transfer_buffer_length,
 552                                                 dev->isoc_ctl.transfer_buffer[i],
 553                                                 urb->transfer_dma);
 554                         }
 555                         usb_free_urb(urb);
 556                         dev->isoc_ctl.urb[i] = NULL;
 557                 }
 558                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 559         }
 560
 561         kfree(dev->isoc_ctl.urb);
 562         kfree(dev->isoc_ctl.transfer_buffer);
 563
 564         dev->isoc_ctl.urb = NULL;
 565         dev->isoc_ctl.transfer_buffer = NULL;
 566         dev->isoc_ctl.num_bufs = 0;
 567 }
 568
 569 /*
 570  * Allocate URBs and start IRQ
 571  */
 572 static int tm6000_prepare_isoc(struct tm6000_core *dev)
 573 {
 574         struct tm6000_dmaqueue *dma_q = &dev->vidq;
 575         int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
 576         struct urb *urb;
 577
 578         /* De-allocates all pending stuff */
 579         tm6000_uninit_isoc(dev);
 580         /* Stop interrupt USB pipe */
 581         tm6000_ir_int_stop(dev);
 582
 583         usb_set_interface(dev->udev,
 584                           dev->isoc_in.bInterfaceNumber,
 585                           dev->isoc_in.bAlternateSetting);
 586
 587         /* Start interrupt USB pipe */
 588         tm6000_ir_int_start(dev);
 589
 590         pipe = usb_rcvisocpipe(dev->udev,
 591                                dev->isoc_in.endp->desc.bEndpointAddress &
 592                                USB_ENDPOINT_NUMBER_MASK);
 593
 594         size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
 595
 596         if (size > dev->isoc_in.maxsize)
 597                 size = dev->isoc_in.maxsize;
 598
 599         dev->isoc_ctl.max_pkt_size = size;
 600
 601         max_packets = TM6000_MAX_ISO_PACKETS;
 602         sb_size = max_packets * size;
 603
 604         dev->isoc_ctl.num_bufs = num_bufs;
 605
 606         dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
 607         if (!dev->isoc_ctl.urb) {
 608                 tm6000_err("cannot alloc memory for usb buffers\n");
 609                 return -ENOMEM;
 610         }
 611
 612         dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
 613                                    GFP_KERNEL);
 614         if (!dev->isoc_ctl.transfer_buffer) {
 615                 tm6000_err("cannot allocate memory for usbtransfer\n");
 616                 kfree(dev->isoc_ctl.urb);
 617                 return -ENOMEM;
 618         }
 619
 620         dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
 621                     " (%d bytes) of %d bytes each to handle %u size\n",
 622                     max_packets, num_bufs, sb_size,
 623                     dev->isoc_in.maxsize, size);
 624
 625         /* allocate urbs and transfer buffers */
 626         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 627                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 628                 if (!urb) {
 629                         tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
 630                         tm6000_uninit_isoc(dev);
 631                         usb_free_urb(urb);
 632                         return -ENOMEM;
 633                 }
 634                 dev->isoc_ctl.urb[i] = urb;
 635
 636                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
 637                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 638                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 639                         tm6000_err("unable to allocate %i bytes for transfer"
 640                                         " buffer %i%s\n",
 641                                         sb_size, i,
 642                                         in_interrupt() ? " while in int" : "");
 643                         tm6000_uninit_isoc(dev);
 644                         return -ENOMEM;
 645                 }
 646                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 647
 648                 usb_fill_bulk_urb(urb, dev->udev, pipe,
 649                                   dev->isoc_ctl.transfer_buffer[i], sb_size,
 650                                   tm6000_irq_callback, dma_q);
 651                 urb->interval = dev->isoc_in.endp->desc.bInterval;
 652                 urb->number_of_packets = max_packets;
 653                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 654
 655                 for (j = 0; j < max_packets; j++) {
 656                         urb->iso_frame_desc[j].offset = size * j;
 657                         urb->iso_frame_desc[j].length = size;
 658                 }
 659         }
 660
 661         return 0;
 662 }
 663
 664 static int tm6000_start_thread(struct tm6000_core *dev)
 665 {
 666         struct tm6000_dmaqueue *dma_q = &dev->vidq;
 667         int i;
 668
 669         dma_q->frame = 0;
 670         dma_q->ini_jiffies = jiffies;
 671
 672         init_waitqueue_head(&dma_q->wq);
 673
 674         /* submit urbs and enables IRQ */
 675         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 676                 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 677                 if (rc) {
 678                         tm6000_err("submit of urb %i failed (error=%i)\n", i,
 679                                    rc);
 680                         tm6000_uninit_isoc(dev);
 681                         return rc;
 682                 }
 683         }
 684
 685         return 0;
 686 }
 687
 688 /* ------------------------------------------------------------------
 689  *      Videobuf operations
 690  * ------------------------------------------------------------------
 691  */
 692
 693 static int
 694 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 695 {
 696         struct tm6000_fh *fh = vq->priv_data;
 697
 698         *size = fh->fmt->depth * fh->width * fh->height >> 3;
 699         if (0 == *count)
 700                 *count = TM6000_DEF_BUF;
 701
 702         if (*count < TM6000_MIN_BUF)
 703                 *count = TM6000_MIN_BUF;
 704
 705         while (*size * *count > vid_limit * 1024 * 1024)
 706                 (*count)--;
 707
 708         return 0;
 709 }
 710
 711 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
 712 {
 713         struct tm6000_fh *fh = vq->priv_data;
 714         struct tm6000_core   *dev = fh->dev;
 715         unsigned long flags;
 716
 717         if (in_interrupt())
 718                 BUG();
 719
 720         /* We used to wait for the buffer to finish here, but this didn't work
 721            because, as we were keeping the state as VIDEOBUF_QUEUED,
 722            videobuf_queue_cancel marked it as finished for us.
 723            (Also, it could wedge forever if the hardware was misconfigured.)
 724
 725            This should be safe; by the time we get here, the buffer isn't
 726            queued anymore. If we ever start marking the buffers as
 727            VIDEOBUF_ACTIVE, it won't be, though.
 728         */
 729         spin_lock_irqsave(&dev->slock, flags);
 730         if (dev->isoc_ctl.buf == buf)
 731                 dev->isoc_ctl.buf = NULL;
 732         spin_unlock_irqrestore(&dev->slock, flags);
 733
 734         videobuf_vmalloc_free(&buf->vb);
 735         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 736 }
 737
 738 static int
 739 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 740                                                 enum v4l2_field field)
 741 {
 742         struct tm6000_fh     *fh  = vq->priv_data;
 743         struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
 744         struct tm6000_core   *dev = fh->dev;
 745         int rc = 0, urb_init = 0;
 746
 747         BUG_ON(NULL == fh->fmt);
 748
 749
 750         /* FIXME: It assumes depth=2 */
 751         /* The only currently supported format is 16 bits/pixel */
 752         buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
 753         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 754                 return -EINVAL;
 755
 756         if (buf->fmt       != fh->fmt    ||
 757             buf->vb.width  != fh->width  ||
 758             buf->vb.height != fh->height ||
 759             buf->vb.field  != field) {
 760                 buf->fmt       = fh->fmt;
 761                 buf->vb.width  = fh->width;
 762                 buf->vb.height = fh->height;
 763                 buf->vb.field  = field;
 764                 buf->vb.state = VIDEOBUF_NEEDS_INIT;
 765         }
 766
 767         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 768                 rc = videobuf_iolock(vq, &buf->vb, NULL);
 769                 if (rc != 0)
 770                         goto fail;
 771                 urb_init = 1;
 772         }
 773
 774         if (!dev->isoc_ctl.num_bufs)
 775                 urb_init = 1;
 776
 777         if (urb_init) {
 778                 rc = tm6000_prepare_isoc(dev);
 779                 if (rc < 0)
 780                         goto fail;
 781
 782                 rc = tm6000_start_thread(dev);
 783                 if (rc < 0)
 784                         goto fail;
 785
 786         }
 787
 788         buf->vb.state = VIDEOBUF_PREPARED;
 789         return 0;
 790
 791 fail:
 792         free_buffer(vq, buf);
 793         return rc;
 794 }
 795
 796 static void
 797 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 798 {
 799         struct tm6000_buffer    *buf     = container_of(vb, struct tm6000_buffer, vb);
 800         struct tm6000_fh        *fh      = vq->priv_data;
 801         struct tm6000_core      *dev     = fh->dev;
 802         struct tm6000_dmaqueue  *vidq    = &dev->vidq;
 803
 804         buf->vb.state = VIDEOBUF_QUEUED;
 805         list_add_tail(&buf->vb.queue, &vidq->active);
 806 }
 807
 808 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 809 {
 810         struct tm6000_buffer   *buf  = container_of(vb, struct tm6000_buffer, vb);
 811
 812         free_buffer(vq, buf);
 813 }
 814
 815 static struct videobuf_queue_ops tm6000_video_qops = {
 816         .buf_setup      = buffer_setup,
 817         .buf_prepare    = buffer_prepare,
 818         .buf_queue      = buffer_queue,
 819         .buf_release    = buffer_release,
 820 };
 821
 822 /* ------------------------------------------------------------------
 823  *      IOCTL handling
 824  * ------------------------------------------------------------------
 825  */
 826
 827 static bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
 828 {
 829         /* Is the current fh handling it? if so, that's OK */
 830         if (dev->resources == fh && dev->is_res_read)
 831                 return true;
 832
 833         return false;
 834 }
 835
 836 static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
 837 {
 838         /* Is the current fh handling it? if so, that's OK */
 839         if (dev->resources == fh)
 840                 return true;
 841
 842         return false;
 843 }
 844
 845 static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
 846                    bool is_res_read)
 847 {
 848         /* Is the current fh handling it? if so, that's OK */
 849         if (dev->resources == fh && dev->is_res_read == is_res_read)
 850                 return true;
 851
 852         /* is it free? */
 853         if (dev->resources)
 854                 return false;
 855
 856         /* grab it */
 857         dev->resources = fh;
 858         dev->is_res_read = is_res_read;
 859         dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
 860         return true;
 861 }
 862
 863 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
 864 {
 865         /* Is the current fh handling it? if so, that's OK */
 866         if (dev->resources != fh)
 867                 return;
 868
 869         dev->resources = NULL;
 870         dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
 871 }
 872
 873 /* ------------------------------------------------------------------
 874  *      IOCTL vidioc handling
 875  * ------------------------------------------------------------------
 876  */
 877 static int vidioc_querycap(struct file *file, void  *priv,
 878                                         struct v4l2_capability *cap)
 879 {
 880         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 881
 882         strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
 883         strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
 884         cap->version = TM6000_VERSION;
 885         cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
 886                                 V4L2_CAP_STREAMING     |
 887                                 V4L2_CAP_AUDIO         |
 888                                 V4L2_CAP_READWRITE;
 889
 890         if (dev->tuner_type != TUNER_ABSENT)
 891                 cap->capabilities |= V4L2_CAP_TUNER;
 892
 893         return 0;
 894 }
 895
 896 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
 897                                         struct v4l2_fmtdesc *f)
 898 {
 899         if (unlikely(f->index >= ARRAY_SIZE(format)))
 900                 return -EINVAL;
 901
 902         strlcpy(f->description, format[f->index].name, sizeof(f->description));
 903         f->pixelformat = format[f->index].fourcc;
 904         return 0;
 905 }
 906
 907 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 908                                         struct v4l2_format *f)
 909 {
 910         struct tm6000_fh  *fh = priv;
 911
 912         f->fmt.pix.width        = fh->width;
 913         f->fmt.pix.height       = fh->height;
 914         f->fmt.pix.field        = fh->vb_vidq.field;
 915         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 916         f->fmt.pix.bytesperline =
 917                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 918         f->fmt.pix.sizeimage =
 919                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 920
 921         return 0;
 922 }
 923
 924 static struct tm6000_fmt *format_by_fourcc(unsigned int fourcc)
 925 {
 926         unsigned int i;
 927
 928         for (i = 0; i < ARRAY_SIZE(format); i++)
 929                 if (format[i].fourcc == fourcc)
 930                         return format+i;
 931         return NULL;
 932 }
 933
 934 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 935                         struct v4l2_format *f)
 936 {
 937         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 938         struct tm6000_fmt *fmt;
 939         enum v4l2_field field;
 940
 941         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 942         if (NULL == fmt) {
 943                 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
 944                                 " invalid.\n", f->fmt.pix.pixelformat);
 945                 return -EINVAL;
 946         }
 947
 948         field = f->fmt.pix.field;
 949
 950         if (field == V4L2_FIELD_ANY)
 951                 field = V4L2_FIELD_SEQ_TB;
 952         else if (V4L2_FIELD_INTERLACED != field) {
 953                 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
 954                 return -EINVAL;
 955         }
 956
 957         tm6000_get_std_res(dev);
 958
 959         f->fmt.pix.width  = dev->width;
 960         f->fmt.pix.height = dev->height;
 961
 962         f->fmt.pix.width &= ~0x01;
 963
 964         f->fmt.pix.field = field;
 965
 966         f->fmt.pix.bytesperline =
 967                 (f->fmt.pix.width * fmt->depth) >> 3;
 968         f->fmt.pix.sizeimage =
 969                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 970
 971         return 0;
 972 }
 973
 974 /*FIXME: This seems to be generic enough to be at videodev2 */
 975 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 976                                         struct v4l2_format *f)
 977 {
 978         struct tm6000_fh  *fh = priv;
 979         struct tm6000_core *dev = fh->dev;
 980         int ret = vidioc_try_fmt_vid_cap(file, fh, f);
 981         if (ret < 0)
 982                 return ret;
 983
 984         fh->fmt           = format_by_fourcc(f->fmt.pix.pixelformat);
 985         fh->width         = f->fmt.pix.width;
 986         fh->height        = f->fmt.pix.height;
 987         fh->vb_vidq.field = f->fmt.pix.field;
 988         fh->type          = f->type;
 989
 990         dev->fourcc       = f->fmt.pix.pixelformat;
 991
 992         tm6000_set_fourcc_format(dev);
 993
 994         return 0;
 995 }
 996
 997 static int vidioc_reqbufs(struct file *file, void *priv,
 998                            struct v4l2_requestbuffers *p)
 999 {
1000         struct tm6000_fh  *fh = priv;
1001
1002         return videobuf_reqbufs(&fh->vb_vidq, p);
1003 }
1004
1005 static int vidioc_querybuf(struct file *file, void *priv,
1006                             struct v4l2_buffer *p)
1007 {
1008         struct tm6000_fh  *fh = priv;
1009
1010         return videobuf_querybuf(&fh->vb_vidq, p);
1011 }
1012
1013 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1014 {
1015         struct tm6000_fh  *fh = priv;
1016
1017         return videobuf_qbuf(&fh->vb_vidq, p);
1018 }
1019
1020 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1021 {
1022         struct tm6000_fh  *fh = priv;
1023
1024         return videobuf_dqbuf(&fh->vb_vidq, p,
1025                                 file->f_flags & O_NONBLOCK);
1026 }
1027
1028 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1029 {
1030         struct tm6000_fh *fh = priv;
1031         struct tm6000_core *dev = fh->dev;
1032
1033         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1034                 return -EINVAL;
1035         if (i != fh->type)
1036                 return -EINVAL;
1037
1038         if (!res_get(dev, fh, false))
1039                 return -EBUSY;
1040         return videobuf_streamon(&fh->vb_vidq);
1041 }
1042
1043 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1044 {
1045         struct tm6000_fh *fh = priv;
1046         struct tm6000_core *dev = fh->dev;
1047
1048         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1049                 return -EINVAL;
1050
1051         if (i != fh->type)
1052                 return -EINVAL;
1053
1054         videobuf_streamoff(&fh->vb_vidq);
1055         res_free(dev, fh);
1056
1057         return 0;
1058 }
1059
1060 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1061 {
1062         int rc = 0;
1063         struct tm6000_fh *fh = priv;
1064         struct tm6000_core *dev = fh->dev;
1065
1066         dev->norm = *norm;
1067         rc = tm6000_init_analog_mode(dev);
1068
1069         fh->width  = dev->width;
1070         fh->height = dev->height;
1071
1072         if (rc < 0)
1073                 return rc;
1074
1075         v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1076
1077         return 0;
1078 }
1079
1080 static const char *iname[] = {
1081         [TM6000_INPUT_TV] = "Television",
1082         [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1083         [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1084         [TM6000_INPUT_SVIDEO] = "S-Video",
1085 };
1086
1087 static int vidioc_enum_input(struct file *file, void *priv,
1088                                 struct v4l2_input *i)
1089 {
1090         struct tm6000_fh   *fh = priv;
1091         struct tm6000_core *dev = fh->dev;
1092         unsigned int n;
1093
1094         n = i->index;
1095         if (n >= 3)
1096                 return -EINVAL;
1097
1098         if (!dev->vinput[n].type)
1099                 return -EINVAL;
1100
1101         i->index = n;
1102
1103         if (dev->vinput[n].type == TM6000_INPUT_TV)
1104                 i->type = V4L2_INPUT_TYPE_TUNER;
1105         else
1106                 i->type = V4L2_INPUT_TYPE_CAMERA;
1107
1108         strcpy(i->name, iname[dev->vinput[n].type]);
1109
1110         i->std = TM6000_STD;
1111
1112         return 0;
1113 }
1114
1115 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1116 {
1117         struct tm6000_fh   *fh = priv;
1118         struct tm6000_core *dev = fh->dev;
1119
1120         *i = dev->input;
1121
1122         return 0;
1123 }
1124
1125 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1126 {
1127         struct tm6000_fh   *fh = priv;
1128         struct tm6000_core *dev = fh->dev;
1129         int rc = 0;
1130
1131         if (i >= 3)
1132                 return -EINVAL;
1133         if (!dev->vinput[i].type)
1134                 return -EINVAL;
1135
1136         dev->input = i;
1137
1138         rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1139
1140         return rc;
1141 }
1142
1143 /* --- controls ---------------------------------------------- */
1144 static int vidioc_queryctrl(struct file *file, void *priv,
1145                                 struct v4l2_queryctrl *qc)
1146 {
1147         int i;
1148
1149         for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1150                 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1151                         memcpy(qc, &(tm6000_qctrl[i]),
1152                                 sizeof(*qc));
1153                         return 0;
1154                 }
1155
1156         return -EINVAL;
1157 }
1158
1159 static int vidioc_g_ctrl(struct file *file, void *priv,
1160                                 struct v4l2_control *ctrl)
1161 {
1162         struct tm6000_fh  *fh = priv;
1163         struct tm6000_core *dev    = fh->dev;
1164         int  val;
1165
1166         /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1167         switch (ctrl->id) {
1168         case V4L2_CID_CONTRAST:
1169                 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1170                 break;
1171         case V4L2_CID_BRIGHTNESS:
1172                 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1173                 return 0;
1174         case V4L2_CID_SATURATION:
1175                 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1176                 return 0;
1177         case V4L2_CID_HUE:
1178                 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1179                 return 0;
1180         case V4L2_CID_AUDIO_MUTE:
1181                 val = dev->ctl_mute;
1182                 return 0;
1183         case V4L2_CID_AUDIO_VOLUME:
1184                 val = dev->ctl_volume;
1185                 return 0;
1186         default:
1187                 return -EINVAL;
1188         }
1189
1190         if (val < 0)
1191                 return val;
1192
1193         ctrl->value = val;
1194
1195         return 0;
1196 }
1197 static int vidioc_s_ctrl(struct file *file, void *priv,
1198                                 struct v4l2_control *ctrl)
1199 {
1200         struct tm6000_fh   *fh  = priv;
1201         struct tm6000_core *dev = fh->dev;
1202         u8  val = ctrl->value;
1203
1204         switch (ctrl->id) {
1205         case V4L2_CID_CONTRAST:
1206                 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1207                 return 0;
1208         case V4L2_CID_BRIGHTNESS:
1209                 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1210                 return 0;
1211         case V4L2_CID_SATURATION:
1212                 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1213                 return 0;
1214         case V4L2_CID_HUE:
1215                 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1216                 return 0;
1217         case V4L2_CID_AUDIO_MUTE:
1218                 dev->ctl_mute = val;
1219                 tm6000_tvaudio_set_mute(dev, val);
1220                 return 0;
1221         case V4L2_CID_AUDIO_VOLUME:
1222                 dev->ctl_volume = val;
1223                 tm6000_set_volume(dev, val);
1224                 return 0;
1225         }
1226         return -EINVAL;
1227 }
1228
1229 static int vidioc_g_tuner(struct file *file, void *priv,
1230                                 struct v4l2_tuner *t)
1231 {
1232         struct tm6000_fh   *fh  = priv;
1233         struct tm6000_core *dev = fh->dev;
1234
1235         if (unlikely(UNSET == dev->tuner_type))
1236                 return -EINVAL;
1237         if (0 != t->index)
1238                 return -EINVAL;
1239
1240         strcpy(t->name, "Television");
1241         t->type       = V4L2_TUNER_ANALOG_TV;
1242         t->capability = V4L2_TUNER_CAP_NORM;
1243         t->rangehigh  = 0xffffffffUL;
1244         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1245
1246         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1247
1248         t->audmode = dev->amode;
1249
1250         return 0;
1251 }
1252
1253 static int vidioc_s_tuner(struct file *file, void *priv,
1254                                 struct v4l2_tuner *t)
1255 {
1256         struct tm6000_fh   *fh  = priv;
1257         struct tm6000_core *dev = fh->dev;
1258
1259         if (UNSET == dev->tuner_type)
1260                 return -EINVAL;
1261         if (0 != t->index)
1262                 return -EINVAL;
1263
1264         dev->amode = t->audmode;
1265         dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1266
1267         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1268
1269         return 0;
1270 }
1271
1272 static int vidioc_g_frequency(struct file *file, void *priv,
1273                                 struct v4l2_frequency *f)
1274 {
1275         struct tm6000_fh   *fh  = priv;
1276         struct tm6000_core *dev = fh->dev;
1277
1278         if (unlikely(UNSET == dev->tuner_type))
1279                 return -EINVAL;
1280
1281         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1282         f->frequency = dev->freq;
1283
1284         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1285
1286         return 0;
1287 }
1288
1289 static int vidioc_s_frequency(struct file *file, void *priv,
1290                                 struct v4l2_frequency *f)
1291 {
1292         struct tm6000_fh   *fh  = priv;
1293         struct tm6000_core *dev = fh->dev;
1294
1295         if (unlikely(UNSET == dev->tuner_type))
1296                 return -EINVAL;
1297         if (unlikely(f->tuner != 0))
1298                 return -EINVAL;
1299         if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1300                 return -EINVAL;
1301         if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1302                 return -EINVAL;
1303
1304         dev->freq = f->frequency;
1305         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1306
1307         return 0;
1308 }
1309
1310 static int radio_querycap(struct file *file, void *priv,
1311                                         struct v4l2_capability *cap)
1312 {
1313         struct tm6000_fh *fh = file->private_data;
1314         struct tm6000_core *dev = fh->dev;
1315
1316         strcpy(cap->driver, "tm6000");
1317         strlcpy(cap->card, dev->name, sizeof(dev->name));
1318         sprintf(cap->bus_info, "USB%04x:%04x",
1319                 le16_to_cpu(dev->udev->descriptor.idVendor),
1320                 le16_to_cpu(dev->udev->descriptor.idProduct));
1321         cap->version = dev->dev_type;
1322         cap->capabilities = V4L2_CAP_TUNER |
1323                         V4L2_CAP_AUDIO     |
1324                         V4L2_CAP_RADIO     |
1325                         V4L2_CAP_READWRITE |
1326                         V4L2_CAP_STREAMING;
1327
1328         return 0;
1329 }
1330
1331 static int radio_g_tuner(struct file *file, void *priv,
1332                                         struct v4l2_tuner *t)
1333 {
1334         struct tm6000_fh *fh = file->private_data;
1335         struct tm6000_core *dev = fh->dev;
1336
1337         if (0 != t->index)
1338                 return -EINVAL;
1339
1340         memset(t, 0, sizeof(*t));
1341         strcpy(t->name, "Radio");
1342         t->type = V4L2_TUNER_RADIO;
1343         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1344
1345         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1346
1347         return 0;
1348 }
1349
1350 static int radio_s_tuner(struct file *file, void *priv,
1351                                         struct v4l2_tuner *t)
1352 {
1353         struct tm6000_fh *fh = file->private_data;
1354         struct tm6000_core *dev = fh->dev;
1355
1356         if (0 != t->index)
1357                 return -EINVAL;
1358
1359         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1360
1361         return 0;
1362 }
1363
1364 static int radio_enum_input(struct file *file, void *priv,
1365                                         struct v4l2_input *i)
1366 {
1367         struct tm6000_fh *fh = priv;
1368         struct tm6000_core *dev = fh->dev;
1369
1370         if (i->index != 0)
1371                 return -EINVAL;
1372
1373         if (!dev->rinput.type)
1374                 return -EINVAL;
1375
1376         strcpy(i->name, "Radio");
1377         i->type = V4L2_INPUT_TYPE_TUNER;
1378
1379         return 0;
1380 }
1381
1382 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1383 {
1384         struct tm6000_fh *fh = priv;
1385         struct tm6000_core *dev = fh->dev;
1386
1387         if (dev->input != 5)
1388                 return -EINVAL;
1389
1390         *i = dev->input - 5;
1391
1392         return 0;
1393 }
1394
1395 static int radio_g_audio(struct file *file, void *priv,
1396                                         struct v4l2_audio *a)
1397 {
1398         memset(a, 0, sizeof(*a));
1399         strcpy(a->name, "Radio");
1400         return 0;
1401 }
1402
1403 static int radio_s_audio(struct file *file, void *priv,
1404                                         struct v4l2_audio *a)
1405 {
1406         return 0;
1407 }
1408
1409 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1410 {
1411         struct tm6000_fh *fh = priv;
1412         struct tm6000_core *dev = fh->dev;
1413
1414         if (i)
1415                 return -EINVAL;
1416
1417         if (!dev->rinput.type)
1418                 return -EINVAL;
1419
1420         dev->input = i + 5;
1421
1422         return 0;
1423 }
1424
1425 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1426 {
1427         return 0;
1428 }
1429
1430 static int radio_queryctrl(struct file *file, void *priv,
1431                                         struct v4l2_queryctrl *c)
1432 {
1433         const struct v4l2_queryctrl *ctrl;
1434
1435         if (c->id <  V4L2_CID_BASE ||
1436             c->id >= V4L2_CID_LASTP1)
1437                 return -EINVAL;
1438         if (c->id == V4L2_CID_AUDIO_MUTE) {
1439                 ctrl = ctrl_by_id(c->id);
1440                 *c = *ctrl;
1441         } else
1442                 *c = no_ctrl;
1443
1444         return 0;
1445 }
1446
1447 /* ------------------------------------------------------------------
1448         File operations for the device
1449    ------------------------------------------------------------------*/
1450
1451 static int tm6000_open(struct file *file)
1452 {
1453         struct video_device *vdev = video_devdata(file);
1454         struct tm6000_core *dev = video_drvdata(file);
1455         struct tm6000_fh *fh;
1456         enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1457         int i, rc;
1458         int radio = 0;
1459
1460         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1461                 video_device_node_name(vdev));
1462
1463         switch (vdev->vfl_type) {
1464         case VFL_TYPE_GRABBER:
1465                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1466                 break;
1467         case VFL_TYPE_VBI:
1468                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1469                 break;
1470         case VFL_TYPE_RADIO:
1471                 radio = 1;
1472                 break;
1473         }
1474
1475         /* If more than one user, mutex should be added */
1476         dev->users++;
1477
1478         dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1479                 video_device_node_name(vdev), v4l2_type_names[type],
1480                 dev->users);
1481
1482         /* allocate + initialize per filehandle data */
1483         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1484         if (NULL == fh) {
1485                 dev->users--;
1486                 return -ENOMEM;
1487         }
1488
1489         file->private_data = fh;
1490         fh->dev      = dev;
1491         fh->radio    = radio;
1492         dev->radio   = radio;
1493         fh->type     = type;
1494         dev->fourcc  = format[0].fourcc;
1495
1496         fh->fmt      = format_by_fourcc(dev->fourcc);
1497
1498         tm6000_get_std_res(dev);
1499
1500         fh->width = dev->width;
1501         fh->height = dev->height;
1502
1503         dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1504                                                 "dev->vidq=0x%08lx\n",
1505                         (unsigned long)fh, (unsigned long)dev,
1506                         (unsigned long)&dev->vidq);
1507         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1508                                 "queued=%d\n", list_empty(&dev->vidq.queued));
1509         dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1510                                 "active=%d\n", list_empty(&dev->vidq.active));
1511
1512         /* initialize hardware on analog mode */
1513         rc = tm6000_init_analog_mode(dev);
1514         if (rc < 0)
1515                 return rc;
1516
1517         if (dev->mode != TM6000_MODE_ANALOG) {
1518                 /* Put all controls at a sane state */
1519                 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1520                         qctl_regs[i] = tm6000_qctrl[i].default_value;
1521
1522                 dev->mode = TM6000_MODE_ANALOG;
1523         }
1524
1525         videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1526                         NULL, &dev->slock,
1527                         fh->type,
1528                         V4L2_FIELD_INTERLACED,
1529                         sizeof(struct tm6000_buffer), fh, &dev->lock);
1530
1531         if (fh->radio) {
1532                 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1533                 dev->input = 5;
1534                 tm6000_set_audio_rinput(dev);
1535                 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1536                 tm6000_prepare_isoc(dev);
1537                 tm6000_start_thread(dev);
1538         }
1539
1540         return 0;
1541 }
1542
1543 static ssize_t
1544 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1545 {
1546         struct tm6000_fh        *fh = file->private_data;
1547
1548         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1549                 if (!res_get(fh->dev, fh, true))
1550                         return -EBUSY;
1551
1552                 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1553                                         file->f_flags & O_NONBLOCK);
1554         }
1555         return 0;
1556 }
1557
1558 static unsigned int
1559 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1560 {
1561         struct tm6000_fh        *fh = file->private_data;
1562         struct tm6000_buffer    *buf;
1563
1564         if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1565                 return POLLERR;
1566
1567         if (!!is_res_streaming(fh->dev, fh))
1568                 return POLLERR;
1569
1570         if (!is_res_read(fh->dev, fh)) {
1571                 /* streaming capture */
1572                 if (list_empty(&fh->vb_vidq.stream))
1573                         return POLLERR;
1574                 buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
1575         } else {
1576                 /* read() capture */
1577                 return videobuf_poll_stream(file, &fh->vb_vidq, wait);
1578         }
1579         poll_wait(file, &buf->vb.done, wait);
1580         if (buf->vb.state == VIDEOBUF_DONE ||
1581             buf->vb.state == VIDEOBUF_ERROR)
1582                 return POLLIN | POLLRDNORM;
1583         return 0;
1584 }
1585
1586 static int tm6000_release(struct file *file)
1587 {
1588         struct tm6000_fh         *fh = file->private_data;
1589         struct tm6000_core      *dev = fh->dev;
1590         struct video_device    *vdev = video_devdata(file);
1591
1592         dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1593                 video_device_node_name(vdev), dev->users);
1594
1595         dev->users--;
1596
1597         res_free(dev, fh);
1598         if (!dev->users) {
1599                 tm6000_uninit_isoc(dev);
1600                 videobuf_mmap_free(&fh->vb_vidq);
1601         }
1602
1603         kfree(fh);
1604
1605         return 0;
1606 }
1607
1608 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1609 {
1610         struct tm6000_fh *fh = file->private_data;
1611
1612         return videobuf_mmap_mapper(&fh->vb_vidq, vma);
1613 }
1614
1615 static struct v4l2_file_operations tm6000_fops = {
1616         .owner = THIS_MODULE,
1617         .open = tm6000_open,
1618         .release = tm6000_release,
1619         .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1620         .read = tm6000_read,
1621         .poll = tm6000_poll,
1622         .mmap = tm6000_mmap,
1623 };
1624
1625 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1626         .vidioc_querycap          = vidioc_querycap,
1627         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1628         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1629         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1630         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1631         .vidioc_s_std             = vidioc_s_std,
1632         .vidioc_enum_input        = vidioc_enum_input,
1633         .vidioc_g_input           = vidioc_g_input,
1634         .vidioc_s_input           = vidioc_s_input,
1635         .vidioc_queryctrl         = vidioc_queryctrl,
1636         .vidioc_g_ctrl            = vidioc_g_ctrl,
1637         .vidioc_s_ctrl            = vidioc_s_ctrl,
1638         .vidioc_g_tuner           = vidioc_g_tuner,
1639         .vidioc_s_tuner           = vidioc_s_tuner,
1640         .vidioc_g_frequency       = vidioc_g_frequency,
1641         .vidioc_s_frequency       = vidioc_s_frequency,
1642         .vidioc_streamon          = vidioc_streamon,
1643         .vidioc_streamoff         = vidioc_streamoff,
1644         .vidioc_reqbufs           = vidioc_reqbufs,
1645         .vidioc_querybuf          = vidioc_querybuf,
1646         .vidioc_qbuf              = vidioc_qbuf,
1647         .vidioc_dqbuf             = vidioc_dqbuf,
1648 };
1649
1650 static struct video_device tm6000_template = {
1651         .name           = "tm6000",
1652         .fops           = &tm6000_fops,
1653         .ioctl_ops      = &video_ioctl_ops,
1654         .release        = video_device_release,
1655         .tvnorms        = TM6000_STD,
1656         .current_norm   = V4L2_STD_NTSC_M,
1657 };
1658
1659 static const struct v4l2_file_operations radio_fops = {
1660         .owner          = THIS_MODULE,
1661         .open           = tm6000_open,
1662         .release        = tm6000_release,
1663         .unlocked_ioctl = video_ioctl2,
1664 };
1665
1666 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1667         .vidioc_querycap        = radio_querycap,
1668         .vidioc_g_tuner         = radio_g_tuner,
1669         .vidioc_enum_input      = radio_enum_input,
1670         .vidioc_g_audio         = radio_g_audio,
1671         .vidioc_s_tuner         = radio_s_tuner,
1672         .vidioc_s_audio         = radio_s_audio,
1673         .vidioc_s_input         = radio_s_input,
1674         .vidioc_s_std           = radio_s_std,
1675         .vidioc_queryctrl       = radio_queryctrl,
1676         .vidioc_g_input         = radio_g_input,
1677         .vidioc_g_ctrl          = vidioc_g_ctrl,
1678         .vidioc_s_ctrl          = vidioc_s_ctrl,
1679         .vidioc_g_frequency     = vidioc_g_frequency,
1680         .vidioc_s_frequency     = vidioc_s_frequency,
1681 };
1682
1683 static struct video_device tm6000_radio_template = {
1684         .name                   = "tm6000",
1685         .fops                   = &radio_fops,
1686         .ioctl_ops              = &radio_ioctl_ops,
1687 };
1688
1689 /* -----------------------------------------------------------------
1690  *      Initialization and module stuff
1691  * ------------------------------------------------------------------
1692  */
1693
1694 static struct video_device *vdev_init(struct tm6000_core *dev,
1695                 const struct video_device
1696                 *template, const char *type_name)
1697 {
1698         struct video_device *vfd;
1699
1700         vfd = video_device_alloc();
1701         if (NULL == vfd)
1702                 return NULL;
1703
1704         *vfd = *template;
1705         vfd->v4l2_dev = &dev->v4l2_dev;
1706         vfd->release = video_device_release;
1707         vfd->debug = tm6000_debug;
1708         vfd->lock = &dev->lock;
1709
1710         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1711
1712         video_set_drvdata(vfd, dev);
1713         return vfd;
1714 }
1715
1716 int tm6000_v4l2_register(struct tm6000_core *dev)
1717 {
1718         int ret = -1;
1719
1720         dev->vfd = vdev_init(dev, &tm6000_template, "video");
1721
1722         if (!dev->vfd) {
1723                 printk(KERN_INFO "%s: can't register video device\n",
1724                        dev->name);
1725                 return -ENOMEM;
1726         }
1727
1728         /* init video dma queues */
1729         INIT_LIST_HEAD(&dev->vidq.active);
1730         INIT_LIST_HEAD(&dev->vidq.queued);
1731
1732         ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1733
1734         if (ret < 0) {
1735                 printk(KERN_INFO "%s: can't register video device\n",
1736                        dev->name);
1737                 return ret;
1738         }
1739
1740         printk(KERN_INFO "%s: registered device %s\n",
1741                dev->name, video_device_node_name(dev->vfd));
1742
1743         if (dev->caps.has_radio) {
1744                 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1745                                                            "radio");
1746                 if (!dev->radio_dev) {
1747                         printk(KERN_INFO "%s: can't register radio device\n",
1748                                dev->name);
1749                         return ret; /* FIXME release resource */
1750                 }
1751
1752                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1753                                             radio_nr);
1754                 if (ret < 0) {
1755                         printk(KERN_INFO "%s: can't register radio device\n",
1756                                dev->name);
1757                         return ret; /* FIXME release resource */
1758                 }
1759
1760                 printk(KERN_INFO "%s: registered device %s\n",
1761                        dev->name, video_device_node_name(dev->radio_dev));
1762         }
1763
1764         printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1765         return ret;
1766 }
1767
1768 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1769 {
1770         video_unregister_device(dev->vfd);
1771
1772         if (dev->radio_dev) {
1773                 if (video_is_registered(dev->radio_dev))
1774                         video_unregister_device(dev->radio_dev);
1775                 else
1776                         video_device_release(dev->radio_dev);
1777                 dev->radio_dev = NULL;
1778         }
1779
1780         return 0;
1781 }
1782
1783 int tm6000_v4l2_exit(void)
1784 {
1785         return 0;
1786 }
1787
1788 module_param(video_nr, int, 0);
1789 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1790
1791 module_param_named(debug, tm6000_debug, int, 0444);
1792 MODULE_PARM_DESC(debug, "activates debug info");
1793
1794 module_param(vid_limit, int, 0644);
1795 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1796