Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1 | /* |
| 2 | tm6000-video.c - driver for TM5600/TM6000 USB video capture devices |
| 3 | |
| 4 | Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org> |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation version 2 |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | */ |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/errno.h> |
| 22 | #include <linux/fs.h> |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/mm.h> |
| 26 | #include <linux/ioport.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/sched.h> |
| 29 | #include <linux/random.h> |
| 30 | #include <linux/version.h> |
| 31 | #include <linux/usb.h> |
| 32 | #include <linux/videodev2.h> |
| 33 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 34 | #include <linux/videodev.h> |
| 35 | #endif |
| 36 | #include <linux/interrupt.h> |
| 37 | #include <linux/kthread.h> |
| 38 | #include <linux/highmem.h> |
| 39 | #include <linux/freezer.h> |
| 40 | |
| 41 | #include "tm6000-regs.h" |
| 42 | #include "tm6000.h" |
| 43 | |
| 44 | #define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ |
| 45 | |
| 46 | /* Declare static vars that will be used as parameters */ |
| 47 | static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ |
| 48 | static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ |
| 49 | |
| 50 | unsigned long tm6000_devused; |
| 51 | |
| 52 | /* Debug level */ |
| 53 | int tm6000_debug; |
| 54 | |
| 55 | /* supported controls */ |
| 56 | static struct v4l2_queryctrl tm6000_qctrl[] = { |
| 57 | { |
| 58 | .id = V4L2_CID_BRIGHTNESS, |
| 59 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 60 | .name = "Brightness", |
| 61 | .minimum = 0, |
| 62 | .maximum = 255, |
| 63 | .step = 1, |
| 64 | .default_value = 54, |
| 65 | .flags = 0, |
| 66 | }, { |
| 67 | .id = V4L2_CID_CONTRAST, |
| 68 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 69 | .name = "Contrast", |
| 70 | .minimum = 0, |
| 71 | .maximum = 255, |
| 72 | .step = 0x1, |
| 73 | .default_value = 119, |
| 74 | .flags = 0, |
| 75 | }, { |
| 76 | .id = V4L2_CID_SATURATION, |
| 77 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 78 | .name = "Saturation", |
| 79 | .minimum = 0, |
| 80 | .maximum = 255, |
| 81 | .step = 0x1, |
| 82 | .default_value = 112, |
| 83 | .flags = 0, |
| 84 | }, { |
| 85 | .id = V4L2_CID_HUE, |
| 86 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 87 | .name = "Hue", |
| 88 | .minimum = -128, |
| 89 | .maximum = 127, |
| 90 | .step = 0x1, |
| 91 | .default_value = 0, //4 ? |
| 92 | .flags = 0, |
| 93 | } |
| 94 | }; |
| 95 | |
| 96 | static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)]; |
| 97 | |
| 98 | static struct tm6000_fmt format[] = { |
| 99 | { |
| 100 | .name = "4:2:2, packed, YVY2", |
| 101 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 102 | .depth = 16, |
| 103 | },{ |
| 104 | .name = "4:2:2, packed, UYVY", |
| 105 | .fourcc = V4L2_PIX_FMT_UYVY, |
| 106 | .depth = 16, |
| 107 | },{ |
| 108 | .name = "A/V + VBI mux packet", |
| 109 | .fourcc = V4L2_PIX_FMT_TM6000, |
| 110 | .depth = 16, |
| 111 | } |
| 112 | }; |
| 113 | |
| 114 | static LIST_HEAD(tm6000_corelist); |
| 115 | |
| 116 | /* ------------------------------------------------------------------ |
| 117 | DMA and thread functions |
| 118 | ------------------------------------------------------------------*/ |
| 119 | |
| 120 | #define norm_maxw(a) 720 |
| 121 | #define norm_maxh(a) 480 |
| 122 | |
| 123 | //#define norm_minw(a) norm_maxw(a) |
| 124 | #define norm_minw(a) norm_maxw(a) |
| 125 | #define norm_minh(a) norm_maxh(a) |
| 126 | |
| 127 | /* |
| 128 | * video-buf generic routine to get the next available buffer |
| 129 | */ |
| 130 | static int inline get_next_buf (struct tm6000_dmaqueue *dma_q, |
| 131 | struct tm6000_buffer **buf) |
| 132 | { |
| 133 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 134 | |
| 135 | if (list_empty(&dma_q->active)) { |
| 136 | dprintk(dev, V4L2_DEBUG_QUEUE,"No active queue to serve\n"); |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | *buf = list_entry(dma_q->active.next, |
| 141 | struct tm6000_buffer, vb.queue); |
| 142 | |
| 143 | /* Nobody is waiting something to be done, just return */ |
| 144 | if (!waitqueue_active(&(*buf)->vb.done)) { |
| 145 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 146 | return -1; |
| 147 | } |
| 148 | |
| 149 | return 1; |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | * Announces that a buffer were filled and request the next |
| 154 | */ |
| 155 | static void inline buffer_filled (struct tm6000_core *dev, |
| 156 | struct tm6000_buffer *buf) |
| 157 | { |
| 158 | /* Advice that buffer was filled */ |
| 159 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] wakeup\n",buf,buf->vb.i); |
| 160 | buf->vb.state = STATE_DONE; |
| 161 | buf->vb.field_count++; |
| 162 | do_gettimeofday(&buf->vb.ts); |
| 163 | |
| 164 | list_del(&buf->vb.queue); |
| 165 | wake_up(&buf->vb.done); |
| 166 | } |
| 167 | |
| 168 | /* |
| 169 | * Macro to allow copying data into the proper memory type |
| 170 | */ |
| 171 | |
| 172 | #define bufcpy(buf,out_ptr,in_ptr,size) \ |
| 173 | { \ |
| 174 | if (__copy_to_user(out_ptr,in_ptr,size)!=0) \ |
| 175 | tm6000_err("copy_to_user failed.\n"); \ |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Identify the tm5600/6000 buffer header type and properly handles |
| 180 | */ |
| 181 | static int copy_streams(u8 *data, u8 *out_p, unsigned long len, |
| 182 | struct urb *urb, struct tm6000_buffer **buf) |
| 183 | { |
| 184 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 185 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 186 | u8 *ptr=data, *endp=data+len; |
| 187 | u8 c; |
| 188 | unsigned int cmd, cpysize, pktsize, size, field, block, line, pos=0; |
| 189 | unsigned long header; |
| 190 | int rc=0; |
| 191 | |
| 192 | /* FIXME: this is the hardcoded window size |
| 193 | */ |
| 194 | unsigned int linesize=720*2; |
| 195 | |
| 196 | //static int last_line=-2; |
| 197 | |
| 198 | for (ptr=data; ptr<endp;) { |
| 199 | if (!dev->isoc_ctl.cmd) { |
| 200 | /* Seek for sync */ |
| 201 | for (ptr+=3;ptr<endp;ptr++) { |
| 202 | if (*ptr==0x47) { |
| 203 | ptr-=3; |
| 204 | break; |
| 205 | } |
| 206 | } |
| 207 | if (ptr>=endp) |
| 208 | return rc; |
| 209 | |
| 210 | /* Get message header */ |
| 211 | header=*(unsigned long *)ptr; |
| 212 | ptr+=4; |
| 213 | c=(header>>24) & 0xff; |
| 214 | |
| 215 | /* split the header fields */ |
| 216 | size = (((header & 0x7e)<<1) -1) *4; |
| 217 | block = (header>>7) & 0xf; |
| 218 | field = (header>>11) & 0x1; |
| 219 | line = (header>>12) & 0x1ff; |
| 220 | cmd = (header>>21) & 0x7; |
| 221 | |
| 222 | /* FIXME: Maximum possible line is 511. |
| 223 | * This doesn't seem to be enough for PAL standards |
| 224 | */ |
| 225 | |
| 226 | /* Validates header fields */ |
| 227 | if(size>TM6000_URB_MSG_LEN) |
| 228 | size=TM6000_URB_MSG_LEN; |
| 229 | if(block>=8) |
| 230 | cmd = TM6000_URB_MSG_ERR; |
| 231 | |
| 232 | /* FIXME: Mounts the image as field0+field1 |
| 233 | * It should, instead, check if the user selected |
| 234 | * entrelaced or non-entrelaced mode |
| 235 | */ |
| 236 | pos=((line<<1)+field)*linesize+ |
| 237 | block*TM6000_URB_MSG_LEN; |
| 238 | |
| 239 | |
| 240 | |
| 241 | /* Don't allow to write out of the buffer */ |
| 242 | if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size) |
| 243 | cmd = TM6000_URB_MSG_ERR; |
| 244 | |
| 245 | /* Prints debug info */ |
| 246 | dprintk(dev, V4L2_DEBUG_ISOC, "size=%d, num=%d, " |
| 247 | " line=%d, field=%d\n", |
| 248 | size, block, line, field); |
| 249 | |
| 250 | dev->isoc_ctl.cmd = cmd; |
| 251 | dev->isoc_ctl.size = size; |
| 252 | dev->isoc_ctl.pos = pos; |
| 253 | dev->isoc_ctl.pktsize = pktsize = TM6000_URB_MSG_LEN; |
| 254 | } else { |
| 255 | cmd = dev->isoc_ctl.cmd; |
| 256 | size= dev->isoc_ctl.size; |
| 257 | pos = dev->isoc_ctl.pos; |
| 258 | pktsize = dev->isoc_ctl.pktsize; |
| 259 | } |
| 260 | cpysize=(endp-ptr>size)?size:endp-ptr; |
| 261 | |
| 262 | if (cpysize) { |
| 263 | /* handles each different URB message */ |
| 264 | switch(cmd) { |
| 265 | case TM6000_URB_MSG_VIDEO: |
| 266 | /* Fills video buffer */ |
| 267 | bufcpy(*buf,&out_p[pos],ptr,cpysize); |
| 268 | break; |
| 269 | } |
| 270 | } |
| 271 | if (cpysize<size) { |
| 272 | /* End of URB packet, but cmd processing is not |
| 273 | * complete. Preserve the state for a next packet |
| 274 | */ |
| 275 | dev->isoc_ctl.pos = pos+cpysize; |
| 276 | dev->isoc_ctl.size= size-cpysize; |
| 277 | dev->isoc_ctl.cmd = cmd; |
| 278 | dev->isoc_ctl.pktsize = pktsize-cpysize; |
| 279 | ptr+=cpysize; |
| 280 | } else { |
| 281 | dev->isoc_ctl.cmd = 0; |
| 282 | ptr+=pktsize; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | return rc; |
| 287 | } |
| 288 | /* |
| 289 | * Identify the tm5600/6000 buffer header type and properly handles |
| 290 | */ |
| 291 | static int copy_multiplexed(u8 *ptr, u8 *out_p, unsigned long len, |
| 292 | struct urb *urb, struct tm6000_buffer **buf) |
| 293 | { |
| 294 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 295 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 296 | unsigned int pos=dev->isoc_ctl.pos,cpysize; |
| 297 | int rc=1; |
| 298 | |
| 299 | while (len>0) { |
| 300 | cpysize=min(len,(*buf)->vb.size-pos); |
| 301 | //printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos); |
| 302 | bufcpy(*buf,&out_p[pos],ptr,cpysize); |
| 303 | pos+=cpysize; |
| 304 | ptr+=cpysize; |
| 305 | len-=cpysize; |
| 306 | if (pos >= (*buf)->vb.size) { |
| 307 | pos=0; |
| 308 | /* Announces that a new buffer were filled */ |
| 309 | buffer_filled (dev, *buf); |
| 310 | dprintk(dev, V4L2_DEBUG_QUEUE, "new buffer filled\n"); |
| 311 | |
| 312 | rc=get_next_buf (dma_q, buf); |
| 313 | if (rc<=0) { |
| 314 | *buf=NULL; |
| 315 | printk(KERN_ERR "tm6000: buffer underrun\n"); |
| 316 | break; |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | dev->isoc_ctl.pos=pos; |
| 322 | return rc; |
| 323 | } |
| 324 | |
| 325 | /* |
| 326 | * Controls the isoc copy of each urb packet |
| 327 | */ |
| 328 | static inline int tm6000_isoc_copy(struct urb *urb, struct tm6000_buffer **buf) |
| 329 | { |
| 330 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 331 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 332 | void *outp=videobuf_to_vmalloc (&((*buf)->vb)); |
| 333 | int i, len=0, rc=1; |
| 334 | int size=(*buf)->vb.size; |
| 335 | char *p; |
| 336 | unsigned long copied; |
| 337 | |
| 338 | copied=0; |
| 339 | |
| 340 | |
| 341 | for (i = 0; i < urb->number_of_packets; i++) { |
| 342 | int status = urb->iso_frame_desc[i].status; |
| 343 | char *errmsg = "Unknown"; |
| 344 | |
| 345 | switch(status) { |
| 346 | case -ENOENT: |
| 347 | errmsg = "unlinked synchronuously"; |
| 348 | break; |
| 349 | case -ECONNRESET: |
| 350 | errmsg = "unlinked asynchronuously"; |
| 351 | break; |
| 352 | case -ENOSR: |
| 353 | errmsg = "Buffer error (overrun)"; |
| 354 | break; |
| 355 | case -EPIPE: |
| 356 | errmsg = "Stalled (device not responding)"; |
| 357 | break; |
| 358 | case -EOVERFLOW: |
| 359 | errmsg = "Babble (bad cable?)"; |
| 360 | break; |
| 361 | case -EPROTO: |
| 362 | errmsg = "Bit-stuff error (bad cable?)"; |
| 363 | break; |
| 364 | case -EILSEQ: |
| 365 | errmsg = "CRC/Timeout (could be anything)"; |
| 366 | break; |
| 367 | case -ETIME: |
| 368 | errmsg = "Device does not respond"; |
| 369 | break; |
| 370 | } |
| 371 | dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n", |
| 372 | status, errmsg); |
| 373 | |
| 374 | if (status<0) |
| 375 | continue; |
| 376 | |
| 377 | len=urb->iso_frame_desc[i].actual_length; |
| 378 | |
| 379 | if (len>=TM6000_URB_MSG_LEN) { |
| 380 | p=urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
| 381 | if (!urb->iso_frame_desc[i].status) { |
| 382 | if (((*buf)->fmt->fourcc)==V4L2_PIX_FMT_TM6000) { |
| 383 | rc=copy_multiplexed(p,outp,len,urb,buf); |
| 384 | if (rc<=0) |
| 385 | return rc; |
| 386 | } else { |
| 387 | rc=copy_streams(p,outp,len,urb,buf); |
| 388 | } |
| 389 | } |
| 390 | copied += len; |
| 391 | if (copied>=size) |
| 392 | break; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | if (((*buf)->fmt->fourcc)!=V4L2_PIX_FMT_TM6000) { |
| 397 | buffer_filled (dev, *buf); |
| 398 | dprintk(dev, V4L2_DEBUG_QUEUE, "new buffer filled\n"); |
| 399 | } |
| 400 | |
| 401 | return rc; |
| 402 | } |
| 403 | |
| 404 | /* ------------------------------------------------------------------ |
| 405 | URB control |
| 406 | ------------------------------------------------------------------*/ |
| 407 | |
| 408 | /* |
| 409 | * IRQ callback, called by URB callback |
| 410 | */ |
| 411 | static void tm6000_irq_callback(struct urb *urb) |
| 412 | { |
| 413 | struct tm6000_buffer *buf; |
| 414 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 415 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 416 | int rc,i; |
| 417 | unsigned long flags; |
| 418 | |
| 419 | spin_lock_irqsave(&dev->slock,flags); |
| 420 | |
| 421 | rc=get_next_buf (dma_q, &buf); |
| 422 | if (rc<=0) |
| 423 | goto ret; |
| 424 | |
| 425 | /* Copy data from URB */ |
| 426 | rc=tm6000_isoc_copy(urb, &buf); |
| 427 | |
| 428 | ret: |
| 429 | /* Reset urb buffers */ |
| 430 | for (i = 0; i < urb->number_of_packets; i++) { |
| 431 | urb->iso_frame_desc[i].status = 0; |
| 432 | urb->iso_frame_desc[i].actual_length = 0; |
| 433 | } |
| 434 | urb->status = 0; |
| 435 | |
| 436 | if ((urb->status = usb_submit_urb(urb, GFP_ATOMIC))) { |
| 437 | tm6000_err("urb resubmit failed (error=%i)\n", |
| 438 | urb->status); |
| 439 | } |
| 440 | |
| 441 | if (rc>=0) { |
| 442 | if (!rc) { |
| 443 | dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n"); |
| 444 | del_timer(&dma_q->timeout); |
| 445 | } else { |
| 446 | /* Data filled, reset watchdog */ |
| 447 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 448 | } |
| 449 | } |
| 450 | spin_unlock_irqrestore(&dev->slock,flags); |
| 451 | } |
| 452 | |
| 453 | /* |
| 454 | * Stop and Deallocate URBs |
| 455 | */ |
| 456 | static void tm6000_uninit_isoc(struct tm6000_core *dev) |
| 457 | { |
| 458 | struct urb *urb; |
| 459 | int i; |
| 460 | |
| 461 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 462 | urb=dev->isoc_ctl.urb[i]; |
| 463 | if (urb) { |
| 464 | usb_kill_urb(urb); |
| 465 | usb_unlink_urb(urb); |
| 466 | if (dev->isoc_ctl.transfer_buffer[i]) { |
| 467 | usb_buffer_free(dev->udev, |
| 468 | urb->transfer_buffer_length, |
| 469 | dev->isoc_ctl.transfer_buffer[i], |
| 470 | urb->transfer_dma); |
| 471 | } |
| 472 | usb_free_urb(urb); |
| 473 | dev->isoc_ctl.urb[i] = NULL; |
| 474 | } |
| 475 | dev->isoc_ctl.transfer_buffer[i] = NULL; |
| 476 | } |
| 477 | |
| 478 | kfree (dev->isoc_ctl.urb); |
| 479 | kfree (dev->isoc_ctl.transfer_buffer); |
| 480 | dev->isoc_ctl.urb=NULL; |
| 481 | dev->isoc_ctl.transfer_buffer=NULL; |
| 482 | |
| 483 | dev->isoc_ctl.num_bufs=0; |
| 484 | } |
| 485 | |
| 486 | /* |
| 487 | * Stop video thread - FIXME: Can be easily removed |
| 488 | */ |
| 489 | static void tm6000_stop_thread(struct tm6000_dmaqueue *dma_q) |
| 490 | { |
| 491 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 492 | |
| 493 | tm6000_uninit_isoc(dev); |
| 494 | } |
| 495 | |
| 496 | |
| 497 | /* |
| 498 | * Allocate URBs and start IRQ |
| 499 | */ |
| 500 | static int tm6000_prepare_isoc(struct tm6000_core *dev, |
| 501 | int max_packets, int num_bufs) |
| 502 | { |
| 503 | struct tm6000_dmaqueue *dma_q = &dev->vidq; |
| 504 | int i; |
| 505 | int sb_size, pipe; |
| 506 | struct urb *urb; |
| 507 | int j, k; |
| 508 | |
| 509 | /* De-allocates all pending stuff */ |
| 510 | tm6000_uninit_isoc(dev); |
| 511 | |
| 512 | dev->isoc_ctl.num_bufs=num_bufs; |
| 513 | |
| 514 | dev->isoc_ctl.urb=kmalloc(sizeof(void *)*num_bufs, |
| 515 | GFP_KERNEL); |
| 516 | if (!dev->isoc_ctl.urb) { |
| 517 | tm6000_err("cannot alloc memory for usb buffers\n"); |
| 518 | return -ENOMEM; |
| 519 | } |
| 520 | |
| 521 | dev->isoc_ctl.transfer_buffer=kmalloc(sizeof(void *)*num_bufs, |
| 522 | GFP_KERNEL); |
| 523 | if (!dev->isoc_ctl.urb) { |
| 524 | tm6000_err("cannot allocate memory for usbtransfer\n"); |
| 525 | kfree(dev->isoc_ctl.urb); |
| 526 | return -ENOMEM; |
| 527 | } |
| 528 | |
| 529 | dev->isoc_ctl.max_pkt_size=dev->max_isoc_in; |
| 530 | |
| 531 | sb_size = max_packets * dev->isoc_ctl.max_pkt_size; |
| 532 | |
| 533 | |
| 534 | /* allocate urbs and transfer buffers */ |
| 535 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 536 | urb = usb_alloc_urb(max_packets, GFP_KERNEL); |
| 537 | if (!urb) { |
| 538 | tm6000_err("cannot alloc isoc_ctl.urb %i\n", i); |
| 539 | tm6000_uninit_isoc(dev); |
| 540 | return -ENOMEM; |
| 541 | } |
| 542 | dev->isoc_ctl.urb[i] = urb; |
| 543 | |
| 544 | dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev, |
| 545 | sb_size, GFP_KERNEL, |
| 546 | &dev->isoc_ctl.urb[i]->transfer_dma); |
| 547 | if (!dev->isoc_ctl.transfer_buffer[i]) { |
| 548 | tm6000_err ("unable to allocate %i bytes for transfer" |
| 549 | " buffer %i\n", sb_size, i); |
| 550 | tm6000_uninit_isoc(dev); |
| 551 | return -ENOMEM; |
| 552 | } |
| 553 | memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); |
| 554 | |
| 555 | pipe=usb_rcvisocpipe(dev->udev, |
| 556 | dev->isoc_in->desc.bEndpointAddress & |
| 557 | USB_ENDPOINT_NUMBER_MASK); |
| 558 | usb_fill_int_urb(urb, dev->udev, pipe, |
| 559 | dev->isoc_ctl.transfer_buffer[i],sb_size, |
| 560 | tm6000_irq_callback, dma_q, |
| 561 | dev->isoc_in->desc.bInterval); |
| 562 | |
| 563 | urb->number_of_packets = max_packets; |
| 564 | urb->transfer_flags = URB_ISO_ASAP; |
| 565 | |
| 566 | k = 0; |
| 567 | for (j = 0; j < max_packets; j++) { |
| 568 | urb->iso_frame_desc[j].offset = k; |
| 569 | urb->iso_frame_desc[j].length = |
| 570 | dev->isoc_ctl.max_pkt_size; |
| 571 | k += dev->isoc_ctl.max_pkt_size; |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | return 0; |
| 576 | } |
| 577 | |
| 578 | static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q, |
| 579 | struct tm6000_buffer *buf) |
| 580 | { |
| 581 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 582 | int i,rc; |
| 583 | |
| 584 | dma_q->frame=0; |
| 585 | dma_q->ini_jiffies=jiffies; |
| 586 | |
| 587 | init_waitqueue_head(&dma_q->wq); |
| 588 | |
| 589 | /* submit urbs and enables IRQ */ |
| 590 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 591 | rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_KERNEL); |
| 592 | if (rc) { |
| 593 | tm6000_err("submit of urb %i failed (error=%i)\n", i, |
| 594 | rc); |
| 595 | tm6000_uninit_isoc(dev); |
| 596 | return rc; |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | if (rc<0) |
| 601 | return rc; |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | static int restart_video_queue(struct tm6000_dmaqueue *dma_q) |
| 607 | { |
| 608 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 609 | |
| 610 | struct tm6000_buffer *buf, *prev; |
| 611 | struct list_head *item; |
| 612 | |
| 613 | dprintk(dev, V4L2_DEBUG_QUEUE, "%s dma_q=0x%08lx\n", |
| 614 | __FUNCTION__,(unsigned long)dma_q); |
| 615 | |
| 616 | if (!list_empty(&dma_q->active)) { |
| 617 | buf = list_entry(dma_q->active.next, struct tm6000_buffer, vb.queue); |
| 618 | dprintk(dev, V4L2_DEBUG_QUEUE, |
| 619 | "restart_queue [%p/%d]: restart dma\n", buf, buf->vb.i); |
| 620 | |
| 621 | dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n"); |
| 622 | tm6000_stop_thread(dma_q); |
| 623 | tm6000_start_thread(dma_q, buf); |
| 624 | |
| 625 | /* cancel all outstanding capture / vbi requests */ |
| 626 | list_for_each(item,&dma_q->active) { |
| 627 | buf = list_entry(item, struct tm6000_buffer, vb.queue); |
| 628 | |
| 629 | list_del(&buf->vb.queue); |
| 630 | buf->vb.state = STATE_ERROR; |
| 631 | wake_up(&buf->vb.done); |
| 632 | } |
| 633 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 634 | |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | prev = NULL; |
| 639 | for (;;) { |
| 640 | if (list_empty(&dma_q->queued)) |
| 641 | return 0; |
| 642 | buf = list_entry(dma_q->queued.next, struct tm6000_buffer, vb.queue); |
| 643 | if (NULL == prev) { |
| 644 | list_del(&buf->vb.queue); |
| 645 | list_add_tail(&buf->vb.queue,&dma_q->active); |
| 646 | |
| 647 | dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n"); |
| 648 | tm6000_stop_thread(dma_q); |
| 649 | tm6000_start_thread(dma_q, buf); |
| 650 | |
| 651 | buf->vb.state = STATE_ACTIVE; |
| 652 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 653 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -" |
| 654 | " first active\n", buf, buf->vb.i); |
| 655 | |
| 656 | } else if (prev->vb.width == buf->vb.width && |
| 657 | prev->vb.height == buf->vb.height && |
| 658 | prev->fmt == buf->fmt) { |
| 659 | list_del(&buf->vb.queue); |
| 660 | list_add_tail(&buf->vb.queue,&dma_q->active); |
| 661 | buf->vb.state = STATE_ACTIVE; |
| 662 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -" |
| 663 | " move to active\n",buf,buf->vb.i); |
| 664 | } else { |
| 665 | return 0; |
| 666 | } |
| 667 | prev = buf; |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | static void tm6000_vid_timeout(unsigned long data) |
| 672 | { |
| 673 | struct tm6000_core *dev = (struct tm6000_core*)data; |
| 674 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 675 | struct tm6000_buffer *buf; |
| 676 | unsigned long flags; |
| 677 | |
| 678 | spin_lock_irqsave(&dev->slock,flags); |
| 679 | while (!list_empty(&vidq->active)) { |
| 680 | buf = list_entry(vidq->active.next, struct tm6000_buffer, |
| 681 | vb.queue); |
| 682 | list_del(&buf->vb.queue); |
| 683 | buf->vb.state = STATE_ERROR; |
| 684 | wake_up(&buf->vb.done); |
| 685 | dprintk(dev, V4L2_DEBUG_QUEUE, "tm6000/0: [%p/%d] timeout\n", |
| 686 | buf, buf->vb.i); |
| 687 | } |
| 688 | |
| 689 | restart_video_queue(vidq); |
| 690 | spin_unlock_irqrestore(&dev->slock,flags); |
| 691 | } |
| 692 | |
| 693 | /* ------------------------------------------------------------------ |
| 694 | Videobuf operations |
| 695 | ------------------------------------------------------------------*/ |
| 696 | static int |
| 697 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) |
| 698 | { |
| 699 | struct tm6000_fh *fh = vq->priv_data; |
| 700 | |
| 701 | *size = fh->fmt->depth * fh->width * fh->height >> 3; |
| 702 | if (0 == *count) |
| 703 | *count = 32; |
| 704 | while (*size * *count > vid_limit * 1024 * 1024) |
| 705 | (*count)--; |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf) |
| 710 | { |
| 711 | if (in_interrupt()) |
| 712 | BUG(); |
| 713 | |
| 714 | videobuf_waiton(&buf->vb,0,0); |
| 715 | videobuf_vmalloc_free(&buf->vb); |
| 716 | buf->vb.state = STATE_NEEDS_INIT; |
| 717 | } |
| 718 | |
| 719 | static int |
| 720 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 721 | enum v4l2_field field) |
| 722 | { |
| 723 | struct tm6000_fh *fh = vq->priv_data; |
| 724 | struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); |
| 725 | struct tm6000_core *dev = fh->dev; |
| 726 | int rc=0, urbsize, urb_init=0; |
| 727 | |
| 728 | BUG_ON(NULL == fh->fmt); |
| 729 | |
| 730 | if (fh->width < norm_minw(core) || fh->width > norm_maxw(core) || |
| 731 | fh->height < norm_minh(core) || fh->height > norm_maxh(core)) { |
| 732 | dprintk(dev, V4L2_DEBUG_QUEUE, "Window size (%dx%d) is out of " |
| 733 | "supported range\n", fh->width, fh->height); |
| 734 | dprintk(dev, V4L2_DEBUG_QUEUE, "Valid range is from (%dx%d) to " |
| 735 | "(%dx%d)\n", norm_minw(core), norm_minh(core), |
| 736 | norm_maxw(core),norm_maxh(core)); |
| 737 | return -EINVAL; |
| 738 | } |
| 739 | |
| 740 | /* FIXME: It assumes depth=2 */ |
| 741 | /* The only currently supported format is 16 bits/pixel */ |
| 742 | buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3; |
| 743 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| 744 | return -EINVAL; |
| 745 | |
| 746 | if (buf->fmt != fh->fmt || |
| 747 | buf->vb.width != fh->width || |
| 748 | buf->vb.height != fh->height || |
| 749 | buf->vb.field != field) { |
| 750 | buf->fmt = fh->fmt; |
| 751 | buf->vb.width = fh->width; |
| 752 | buf->vb.height = fh->height; |
| 753 | buf->vb.field = field; |
| 754 | buf->vb.state = STATE_NEEDS_INIT; |
| 755 | } |
| 756 | |
| 757 | if (STATE_NEEDS_INIT == buf->vb.state) { |
| 758 | if (0 != (rc = videobuf_iolock(vq,&buf->vb,NULL))) |
| 759 | goto fail; |
| 760 | urb_init=1; |
| 761 | } |
| 762 | |
| 763 | |
| 764 | if (!dev->isoc_ctl.num_bufs) |
| 765 | urb_init=1; |
| 766 | |
| 767 | if (urb_init) { |
| 768 | /* Should allocate/request at least h |
| 769 | res x v res x 2 bytes/pixel */ |
| 770 | urbsize=(buf->vb.size+dev->max_isoc_in-1)/dev->max_isoc_in; |
| 771 | |
| 772 | /* Hack to allocate memory for Video + Audio */ |
| 773 | /* FIXME: should also consider header ovehead of |
| 774 | 4 bytes/180 bytes */ |
| 775 | urbsize+=((48000*4+24)/25+dev->max_isoc_in-1)/dev->max_isoc_in; |
| 776 | |
| 777 | dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d packets to handle " |
| 778 | "%lu size\n", urbsize,buf->vb.size); |
| 779 | rc = tm6000_prepare_isoc(dev, urbsize, 2); |
| 780 | |
| 781 | if (rc<0) |
| 782 | goto fail; |
| 783 | } |
| 784 | |
| 785 | buf->vb.state = STATE_PREPARED; |
| 786 | return 0; |
| 787 | |
| 788 | fail: |
| 789 | free_buffer(vq,buf); |
| 790 | return rc; |
| 791 | } |
| 792 | |
| 793 | static void |
| 794 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 795 | { |
| 796 | struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); |
| 797 | struct tm6000_fh *fh = vq->priv_data; |
| 798 | struct tm6000_core *dev = fh->dev; |
| 799 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 800 | struct tm6000_buffer *prev; |
| 801 | |
| 802 | if (!list_empty(&vidq->queued)) { |
| 803 | list_add_tail(&buf->vb.queue,&vidq->queued); |
| 804 | buf->vb.state = STATE_QUEUED; |
| 805 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - " |
| 806 | "append to queued\n", buf, buf->vb.i); |
| 807 | } else if (list_empty(&vidq->active)) { |
| 808 | list_add_tail(&buf->vb.queue,&vidq->active); |
| 809 | buf->vb.state = STATE_ACTIVE; |
| 810 | mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); |
| 811 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - " |
| 812 | "first active\n", buf, buf->vb.i); |
| 813 | tm6000_start_thread(vidq, buf); |
| 814 | } else { |
| 815 | prev = list_entry(vidq->active.prev, struct tm6000_buffer, vb.queue); |
| 816 | if (prev->vb.width == buf->vb.width && |
| 817 | prev->vb.height == buf->vb.height && |
| 818 | prev->fmt == buf->fmt) { |
| 819 | list_add_tail(&buf->vb.queue,&vidq->active); |
| 820 | buf->vb.state = STATE_ACTIVE; |
| 821 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -" |
| 822 | " append to active\n", buf, buf->vb.i); |
| 823 | } else { |
| 824 | list_add_tail(&buf->vb.queue,&vidq->queued); |
| 825 | buf->vb.state = STATE_QUEUED; |
| 826 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -" |
| 827 | " first queued\n", buf, buf->vb.i); |
| 828 | } |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 833 | { |
| 834 | struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); |
| 835 | struct tm6000_fh *fh = vq->priv_data; |
| 836 | struct tm6000_core *dev = (struct tm6000_core*)fh->dev; |
| 837 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 838 | |
| 839 | tm6000_stop_thread(vidq); |
| 840 | |
| 841 | free_buffer(vq,buf); |
| 842 | } |
| 843 | |
| 844 | static struct videobuf_queue_ops tm6000_video_qops = { |
| 845 | .buf_setup = buffer_setup, |
| 846 | .buf_prepare = buffer_prepare, |
| 847 | .buf_queue = buffer_queue, |
| 848 | .buf_release = buffer_release, |
| 849 | }; |
| 850 | |
| 851 | /* ------------------------------------------------------------------ |
| 852 | IOCTL handling |
| 853 | ------------------------------------------------------------------*/ |
| 854 | |
| 855 | static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh) |
| 856 | { |
| 857 | /* is it free? */ |
| 858 | mutex_lock(&dev->lock); |
| 859 | if (dev->resources) { |
| 860 | /* no, someone else uses it */ |
| 861 | mutex_unlock(&dev->lock); |
| 862 | return 0; |
| 863 | } |
| 864 | /* it's free, grab it */ |
| 865 | dev->resources =1; |
| 866 | dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n"); |
| 867 | mutex_unlock(&dev->lock); |
| 868 | return 1; |
| 869 | } |
| 870 | |
| 871 | static int res_locked(struct tm6000_core *dev) |
| 872 | { |
| 873 | return (dev->resources); |
| 874 | } |
| 875 | |
| 876 | static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh) |
| 877 | { |
| 878 | mutex_lock(&dev->lock); |
| 879 | dev->resources = 0; |
| 880 | dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n"); |
| 881 | mutex_unlock(&dev->lock); |
| 882 | } |
| 883 | |
| 884 | /* ------------------------------------------------------------------ |
| 885 | IOCTL vidioc handling |
| 886 | ------------------------------------------------------------------*/ |
| 887 | static int vidioc_querycap (struct file *file, void *priv, |
| 888 | struct v4l2_capability *cap) |
| 889 | { |
| 890 | // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev; |
| 891 | |
| 892 | strlcpy(cap->driver, "tm6000", sizeof(cap->driver)); |
| 893 | strlcpy(cap->card,"Trident TVMaster TM5600/6000", sizeof(cap->card)); |
| 894 | // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); |
| 895 | cap->version = TM6000_VERSION; |
| 896 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 897 | V4L2_CAP_STREAMING | |
| 898 | V4L2_CAP_TUNER | |
| 899 | V4L2_CAP_READWRITE; |
| 900 | return 0; |
| 901 | } |
| 902 | |
| 903 | static int vidioc_enum_fmt_cap (struct file *file, void *priv, |
| 904 | struct v4l2_fmtdesc *f) |
| 905 | { |
| 906 | if (unlikely(f->index >= ARRAY_SIZE(format))) |
| 907 | return -EINVAL; |
| 908 | |
| 909 | strlcpy(f->description,format[f->index].name,sizeof(f->description)); |
| 910 | f->pixelformat = format[f->index].fourcc; |
| 911 | return 0; |
| 912 | } |
| 913 | |
| 914 | static int vidioc_g_fmt_cap (struct file *file, void *priv, |
| 915 | struct v4l2_format *f) |
| 916 | { |
| 917 | struct tm6000_fh *fh=priv; |
| 918 | |
| 919 | f->fmt.pix.width = fh->width; |
| 920 | f->fmt.pix.height = fh->height; |
| 921 | f->fmt.pix.field = fh->vb_vidq.field; |
| 922 | f->fmt.pix.pixelformat = fh->fmt->fourcc; |
| 923 | f->fmt.pix.bytesperline = |
| 924 | (f->fmt.pix.width * fh->fmt->depth) >> 3; |
| 925 | f->fmt.pix.sizeimage = |
| 926 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 927 | |
| 928 | return (0); |
| 929 | } |
| 930 | |
| 931 | static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc) |
| 932 | { |
| 933 | unsigned int i; |
| 934 | |
| 935 | for (i = 0; i < ARRAY_SIZE(format); i++) |
| 936 | if (format[i].fourcc == fourcc) |
| 937 | return format+i; |
| 938 | return NULL; |
| 939 | } |
| 940 | |
| 941 | static int vidioc_try_fmt_cap (struct file *file, void *priv, |
| 942 | struct v4l2_format *f) |
| 943 | { |
| 944 | struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev; |
| 945 | struct tm6000_fmt *fmt; |
| 946 | enum v4l2_field field; |
| 947 | |
| 948 | fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
| 949 | if (NULL == fmt) { |
| 950 | dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)" |
| 951 | " invalid.\n", f->fmt.pix.pixelformat); |
| 952 | return -EINVAL; |
| 953 | } |
| 954 | |
| 955 | field = f->fmt.pix.field; |
| 956 | |
| 957 | if (field == V4L2_FIELD_ANY) { |
| 958 | // field=V4L2_FIELD_INTERLACED; |
| 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 | if (f->fmt.pix.width < norm_minw(core)) |
| 966 | f->fmt.pix.width = norm_minw(core); |
| 967 | |
| 968 | if (f->fmt.pix.width > norm_maxw(core)) |
| 969 | f->fmt.pix.width = norm_maxw(core); |
| 970 | |
| 971 | if (f->fmt.pix.height < norm_minh(core)) |
| 972 | f->fmt.pix.height = norm_minh(core); |
| 973 | |
| 974 | if (f->fmt.pix.height > norm_maxh(core)) |
| 975 | f->fmt.pix.height = norm_maxh(core); |
| 976 | |
| 977 | f->fmt.pix.width &= ~0x01; |
| 978 | |
| 979 | f->fmt.pix.field = field; |
| 980 | |
| 981 | f->fmt.pix.bytesperline = |
| 982 | (f->fmt.pix.width * fmt->depth) >> 3; |
| 983 | f->fmt.pix.sizeimage = |
| 984 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 985 | |
| 986 | return 0; |
| 987 | } |
| 988 | |
| 989 | /*FIXME: This seems to be generic enough to be at videodev2 */ |
| 990 | static int vidioc_s_fmt_cap (struct file *file, void *priv, |
| 991 | struct v4l2_format *f) |
| 992 | { |
| 993 | struct tm6000_fh *fh=priv; |
| 994 | struct tm6000_core *dev = fh->dev; |
| 995 | int ret = vidioc_try_fmt_cap(file,fh,f); |
| 996 | if (ret < 0) |
| 997 | return (ret); |
| 998 | |
| 999 | fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
| 1000 | fh->width = f->fmt.pix.width; |
| 1001 | fh->height = f->fmt.pix.height; |
| 1002 | fh->vb_vidq.field = f->fmt.pix.field; |
| 1003 | fh->type = f->type; |
| 1004 | |
| 1005 | dev->fourcc = f->fmt.pix.pixelformat; |
| 1006 | |
| 1007 | tm6000_set_fourcc_format(dev); |
| 1008 | |
| 1009 | return (0); |
| 1010 | } |
| 1011 | |
| 1012 | static int vidioc_reqbufs (struct file *file, void *priv, |
| 1013 | struct v4l2_requestbuffers *p) |
| 1014 | { |
| 1015 | struct tm6000_fh *fh=priv; |
| 1016 | |
| 1017 | return (videobuf_reqbufs(&fh->vb_vidq, p)); |
| 1018 | } |
| 1019 | |
| 1020 | static int vidioc_querybuf (struct file *file, void *priv, |
| 1021 | struct v4l2_buffer *p) |
| 1022 | { |
| 1023 | struct tm6000_fh *fh=priv; |
| 1024 | |
| 1025 | return (videobuf_querybuf(&fh->vb_vidq, p)); |
| 1026 | } |
| 1027 | |
| 1028 | static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p) |
| 1029 | { |
| 1030 | struct tm6000_fh *fh=priv; |
| 1031 | |
| 1032 | return (videobuf_qbuf(&fh->vb_vidq, p)); |
| 1033 | } |
| 1034 | |
| 1035 | static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p) |
| 1036 | { |
| 1037 | struct tm6000_fh *fh=priv; |
| 1038 | |
| 1039 | return (videobuf_dqbuf(&fh->vb_vidq, p, |
| 1040 | file->f_flags & O_NONBLOCK)); |
| 1041 | } |
| 1042 | |
| 1043 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1044 | static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf) |
| 1045 | { |
| 1046 | struct tm6000_fh *fh=priv; |
| 1047 | |
| 1048 | return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8); |
| 1049 | } |
| 1050 | #endif |
| 1051 | |
| 1052 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
| 1053 | { |
| 1054 | struct tm6000_fh *fh=priv; |
| 1055 | struct tm6000_core *dev = fh->dev; |
| 1056 | |
| 1057 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1058 | return -EINVAL; |
| 1059 | if (i != fh->type) |
| 1060 | return -EINVAL; |
| 1061 | |
| 1062 | if (!res_get(dev,fh)) |
| 1063 | return -EBUSY; |
| 1064 | return (videobuf_streamon(&fh->vb_vidq)); |
| 1065 | } |
| 1066 | |
| 1067 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
| 1068 | { |
| 1069 | struct tm6000_fh *fh=priv; |
| 1070 | struct tm6000_core *dev = fh->dev; |
| 1071 | |
| 1072 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1073 | return -EINVAL; |
| 1074 | if (i != fh->type) |
| 1075 | return -EINVAL; |
| 1076 | |
| 1077 | videobuf_streamoff(&fh->vb_vidq); |
| 1078 | res_free(dev,fh); |
| 1079 | |
| 1080 | return (0); |
| 1081 | } |
| 1082 | |
| 1083 | static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm) |
| 1084 | { |
| 1085 | int rc=0; |
| 1086 | struct tm6000_fh *fh=priv; |
| 1087 | struct tm6000_core *dev = fh->dev; |
| 1088 | |
| 1089 | rc=tm6000_set_standard (dev, norm); |
| 1090 | if (rc<0) |
| 1091 | return rc; |
| 1092 | |
| 1093 | tm6000_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm); |
| 1094 | |
| 1095 | return 0; |
| 1096 | } |
| 1097 | |
| 1098 | static int vidioc_enum_input (struct file *file, void *priv, |
| 1099 | struct v4l2_input *inp) |
| 1100 | { |
| 1101 | switch (inp->index) { |
| 1102 | case TM6000_INPUT_TV: |
| 1103 | inp->type = V4L2_INPUT_TYPE_TUNER; |
| 1104 | strcpy(inp->name,"Television"); |
| 1105 | break; |
| 1106 | case TM6000_INPUT_COMPOSITE: |
| 1107 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
| 1108 | strcpy(inp->name,"Composite"); |
| 1109 | break; |
| 1110 | case TM6000_INPUT_SVIDEO: |
| 1111 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
| 1112 | strcpy(inp->name,"S-Video"); |
| 1113 | break; |
| 1114 | default: |
| 1115 | return -EINVAL; |
| 1116 | } |
| 1117 | inp->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 | static int vidioc_s_input (struct file *file, void *priv, unsigned int i) |
| 1132 | { |
| 1133 | struct tm6000_fh *fh=priv; |
| 1134 | struct tm6000_core *dev = fh->dev; |
| 1135 | int rc=0; |
| 1136 | char buf[1]; |
| 1137 | |
| 1138 | switch (i) { |
| 1139 | case TM6000_INPUT_TV: |
| 1140 | dev->input=i; |
| 1141 | *buf=0; |
| 1142 | break; |
| 1143 | case TM6000_INPUT_COMPOSITE: |
| 1144 | case TM6000_INPUT_SVIDEO: |
| 1145 | dev->input=i; |
| 1146 | *buf=1; |
| 1147 | break; |
| 1148 | default: |
| 1149 | return -EINVAL; |
| 1150 | } |
| 1151 | rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR, |
| 1152 | REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1); |
| 1153 | |
| 1154 | if (!rc) { |
| 1155 | dev->input=i; |
| 1156 | rc=vidioc_s_std (file, priv, &dev->vfd.current_norm); |
| 1157 | } |
| 1158 | |
| 1159 | return (rc); |
| 1160 | } |
| 1161 | |
| 1162 | /* --- controls ---------------------------------------------- */ |
| 1163 | static int vidioc_queryctrl (struct file *file, void *priv, |
| 1164 | struct v4l2_queryctrl *qc) |
| 1165 | { |
| 1166 | int i; |
| 1167 | |
| 1168 | for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++) |
| 1169 | if (qc->id && qc->id == tm6000_qctrl[i].id) { |
| 1170 | memcpy(qc, &(tm6000_qctrl[i]), |
| 1171 | sizeof(*qc)); |
| 1172 | return (0); |
| 1173 | } |
| 1174 | |
| 1175 | return -EINVAL; |
| 1176 | } |
| 1177 | |
| 1178 | static int vidioc_g_ctrl (struct file *file, void *priv, |
| 1179 | struct v4l2_control *ctrl) |
| 1180 | { |
| 1181 | struct tm6000_fh *fh=priv; |
| 1182 | struct tm6000_core *dev = fh->dev; |
| 1183 | int val; |
| 1184 | |
| 1185 | /* FIXME: Probably, those won't work! Maybe we need shadow regs */ |
| 1186 | switch (ctrl->id) { |
| 1187 | case V4L2_CID_CONTRAST: |
| 1188 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x08, 0); |
| 1189 | break; |
| 1190 | case V4L2_CID_BRIGHTNESS: |
| 1191 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x09, 0); |
| 1192 | return 0; |
| 1193 | case V4L2_CID_SATURATION: |
| 1194 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, 0); |
| 1195 | return 0; |
| 1196 | case V4L2_CID_HUE: |
| 1197 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, 0); |
| 1198 | return 0; |
| 1199 | default: |
| 1200 | return -EINVAL; |
| 1201 | } |
| 1202 | |
| 1203 | if (val<0) |
| 1204 | return val; |
| 1205 | |
| 1206 | ctrl->value=val; |
| 1207 | |
| 1208 | return 0; |
| 1209 | } |
| 1210 | static int vidioc_s_ctrl (struct file *file, void *priv, |
| 1211 | struct v4l2_control *ctrl) |
| 1212 | { |
| 1213 | struct tm6000_fh *fh =priv; |
| 1214 | struct tm6000_core *dev = fh->dev; |
| 1215 | u8 val=ctrl->value; |
| 1216 | |
| 1217 | switch (ctrl->id) { |
| 1218 | case V4L2_CID_CONTRAST: |
| 1219 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x08, val); |
| 1220 | return 0; |
| 1221 | case V4L2_CID_BRIGHTNESS: |
| 1222 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x09, val); |
| 1223 | return 0; |
| 1224 | case V4L2_CID_SATURATION: |
| 1225 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, val); |
| 1226 | return 0; |
| 1227 | case V4L2_CID_HUE: |
| 1228 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, val); |
| 1229 | return 0; |
| 1230 | } |
| 1231 | return -EINVAL; |
| 1232 | } |
| 1233 | |
| 1234 | static int vidioc_g_tuner (struct file *file, void *priv, |
| 1235 | struct v4l2_tuner *t) |
| 1236 | { |
| 1237 | struct tm6000_fh *fh =priv; |
| 1238 | struct tm6000_core *dev = fh->dev; |
| 1239 | |
| 1240 | if (unlikely(UNSET == dev->tuner_type)) |
| 1241 | return -EINVAL; |
| 1242 | if (0 != t->index) |
| 1243 | return -EINVAL; |
| 1244 | |
| 1245 | strcpy(t->name, "Television"); |
| 1246 | t->type = V4L2_TUNER_ANALOG_TV; |
| 1247 | t->capability = V4L2_TUNER_CAP_NORM; |
| 1248 | t->rangehigh = 0xffffffffUL; |
| 1249 | t->rxsubchans = V4L2_TUNER_SUB_MONO; |
| 1250 | |
| 1251 | return 0; |
| 1252 | } |
| 1253 | |
| 1254 | static int vidioc_s_tuner (struct file *file, void *priv, |
| 1255 | struct v4l2_tuner *t) |
| 1256 | { |
| 1257 | struct tm6000_fh *fh =priv; |
| 1258 | struct tm6000_core *dev = fh->dev; |
| 1259 | |
| 1260 | if (UNSET == dev->tuner_type) |
| 1261 | return -EINVAL; |
| 1262 | if (0 != t->index) |
| 1263 | return -EINVAL; |
| 1264 | |
| 1265 | return 0; |
| 1266 | } |
| 1267 | |
| 1268 | static int vidioc_g_frequency (struct file *file, void *priv, |
| 1269 | struct v4l2_frequency *f) |
| 1270 | { |
| 1271 | struct tm6000_fh *fh =priv; |
| 1272 | struct tm6000_core *dev = fh->dev; |
| 1273 | |
| 1274 | if (unlikely(UNSET == dev->tuner_type)) |
| 1275 | return -EINVAL; |
| 1276 | |
| 1277 | f->type = V4L2_TUNER_ANALOG_TV; |
| 1278 | f->frequency = dev->freq; |
| 1279 | |
| 1280 | tm6000_i2c_call_clients(dev,VIDIOC_G_FREQUENCY,f); |
| 1281 | |
| 1282 | return 0; |
| 1283 | } |
| 1284 | |
| 1285 | static int vidioc_s_frequency (struct file *file, void *priv, |
| 1286 | struct v4l2_frequency *f) |
| 1287 | { |
| 1288 | struct tm6000_fh *fh =priv; |
| 1289 | struct tm6000_core *dev = fh->dev; |
| 1290 | |
| 1291 | if (unlikely(f->type != V4L2_TUNER_ANALOG_TV)) |
| 1292 | return -EINVAL; |
| 1293 | |
| 1294 | if (unlikely(UNSET == dev->tuner_type)) |
| 1295 | return -EINVAL; |
| 1296 | if (unlikely(f->tuner != 0)) |
| 1297 | return -EINVAL; |
| 1298 | |
| 1299 | // mutex_lock(&dev->lock); |
| 1300 | dev->freq = f->frequency; |
| 1301 | tm6000_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f); |
| 1302 | // mutex_unlock(&dev->lock); |
| 1303 | |
| 1304 | return 0; |
| 1305 | } |
| 1306 | |
| 1307 | /* ------------------------------------------------------------------ |
| 1308 | File operations for the device |
| 1309 | ------------------------------------------------------------------*/ |
| 1310 | |
| 1311 | static int tm6000_open(struct inode *inode, struct file *file) |
| 1312 | { |
| 1313 | int minor = iminor(inode); |
| 1314 | struct tm6000_core *h,*dev = NULL; |
| 1315 | struct tm6000_fh *fh; |
| 1316 | struct list_head *list; |
| 1317 | enum v4l2_buf_type type = 0; |
| 1318 | int i,rc; |
| 1319 | |
| 1320 | dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called " |
| 1321 | "(minor=%d)\n",minor); |
| 1322 | |
| 1323 | list_for_each(list,&tm6000_corelist) { |
| 1324 | h = list_entry(list, struct tm6000_core, tm6000_corelist); |
| 1325 | if (h->vfd.minor == minor) { |
| 1326 | dev = h; |
| 1327 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1328 | } |
| 1329 | } |
| 1330 | if (NULL == dev) |
| 1331 | return -ENODEV; |
| 1332 | |
| 1333 | |
| 1334 | /* If more than one user, mutex should be added */ |
| 1335 | dev->users++; |
| 1336 | |
| 1337 | dprintk(dev, V4L2_DEBUG_OPEN, "open minor=%d type=%s users=%d\n", |
| 1338 | minor,v4l2_type_names[type],dev->users); |
| 1339 | |
| 1340 | /* allocate + initialize per filehandle data */ |
| 1341 | fh = kzalloc(sizeof(*fh),GFP_KERNEL); |
| 1342 | if (NULL == fh) { |
| 1343 | dev->users--; |
| 1344 | return -ENOMEM; |
| 1345 | } |
| 1346 | |
| 1347 | file->private_data = fh; |
| 1348 | fh->dev = dev; |
| 1349 | |
| 1350 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1351 | dev->fourcc = format[0].fourcc; |
| 1352 | |
| 1353 | fh->fmt = format_by_fourcc(dev->fourcc); |
| 1354 | fh->width = norm_maxw(); |
| 1355 | fh->height = norm_maxh(); |
| 1356 | |
| 1357 | dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, " |
| 1358 | "dev->vidq=0x%08lx\n", |
| 1359 | (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq); |
| 1360 | dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty " |
| 1361 | "queued=%d\n",list_empty(&dev->vidq.queued)); |
| 1362 | dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty " |
| 1363 | "active=%d\n",list_empty(&dev->vidq.active)); |
| 1364 | |
| 1365 | /* initialize hardware on analog mode */ |
| 1366 | if (dev->mode!=TM6000_MODE_ANALOG) { |
| 1367 | rc=tm6000_init_analog_mode (dev); |
| 1368 | if (rc<0) |
| 1369 | return rc; |
| 1370 | |
| 1371 | /* Put all controls at a sane state */ |
| 1372 | for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++) |
| 1373 | qctl_regs[i] =tm6000_qctrl[i].default_value; |
| 1374 | |
| 1375 | dev->mode=TM6000_MODE_ANALOG; |
| 1376 | } |
| 1377 | |
| 1378 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops, |
| 1379 | NULL, &dev->slock, |
| 1380 | fh->type, |
| 1381 | V4L2_FIELD_INTERLACED, |
| 1382 | sizeof(struct tm6000_buffer),fh); |
| 1383 | |
| 1384 | return 0; |
| 1385 | } |
| 1386 | |
| 1387 | static ssize_t |
| 1388 | tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos) |
| 1389 | { |
| 1390 | struct tm6000_fh *fh = file->private_data; |
| 1391 | |
| 1392 | if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1393 | if (res_locked(fh->dev)) |
| 1394 | return -EBUSY; |
| 1395 | |
| 1396 | return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0, |
| 1397 | file->f_flags & O_NONBLOCK); |
| 1398 | } |
| 1399 | return 0; |
| 1400 | } |
| 1401 | |
| 1402 | static unsigned int |
| 1403 | tm6000_poll(struct file *file, struct poll_table_struct *wait) |
| 1404 | { |
| 1405 | struct tm6000_fh *fh = file->private_data; |
| 1406 | struct tm6000_buffer *buf; |
| 1407 | |
| 1408 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
| 1409 | return POLLERR; |
| 1410 | |
| 1411 | if (res_get(fh->dev,fh)) { |
| 1412 | /* streaming capture */ |
| 1413 | if (list_empty(&fh->vb_vidq.stream)) |
| 1414 | return POLLERR; |
| 1415 | buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream); |
| 1416 | } else { |
| 1417 | /* read() capture */ |
| 1418 | buf = (struct tm6000_buffer*)fh->vb_vidq.read_buf; |
| 1419 | if (NULL == buf) |
| 1420 | return POLLERR; |
| 1421 | } |
| 1422 | poll_wait(file, &buf->vb.done, wait); |
| 1423 | if (buf->vb.state == STATE_DONE || |
| 1424 | buf->vb.state == STATE_ERROR) |
| 1425 | return POLLIN|POLLRDNORM; |
| 1426 | return 0; |
| 1427 | } |
| 1428 | |
| 1429 | static int tm6000_release(struct inode *inode, struct file *file) |
| 1430 | { |
| 1431 | struct tm6000_fh *fh = file->private_data; |
| 1432 | struct tm6000_core *dev = fh->dev; |
| 1433 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 1434 | int minor = iminor(inode); |
| 1435 | |
| 1436 | tm6000_stop_thread(vidq); |
| 1437 | videobuf_mmap_free(&fh->vb_vidq); |
| 1438 | |
| 1439 | kfree (fh); |
| 1440 | |
| 1441 | dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (minor=%d, users=%d)\n",minor,dev->users); |
| 1442 | |
| 1443 | return 0; |
| 1444 | } |
| 1445 | |
| 1446 | static int tm6000_mmap(struct file *file, struct vm_area_struct * vma) |
| 1447 | { |
| 1448 | struct tm6000_fh *fh = file->private_data; |
| 1449 | int ret; |
| 1450 | |
| 1451 | ret=videobuf_mmap_mapper(&fh->vb_vidq, vma); |
| 1452 | |
| 1453 | return ret; |
| 1454 | } |
| 1455 | |
| 1456 | static struct file_operations tm6000_fops = { |
| 1457 | .owner = THIS_MODULE, |
| 1458 | .open = tm6000_open, |
| 1459 | .release = tm6000_release, |
| 1460 | .ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
| 1461 | .read = tm6000_read, |
| 1462 | .poll = tm6000_poll, |
| 1463 | .mmap = tm6000_mmap, |
| 1464 | .llseek = no_llseek, |
| 1465 | }; |
| 1466 | |
| 1467 | static struct video_device tm6000_template = { |
| 1468 | .name = "tm6000", |
| 1469 | .type = VID_TYPE_CAPTURE, |
| 1470 | .fops = &tm6000_fops, |
| 1471 | .minor = -1, |
| 1472 | .release = video_device_release, |
| 1473 | |
| 1474 | .vidioc_querycap = vidioc_querycap, |
| 1475 | .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, |
| 1476 | .vidioc_g_fmt_cap = vidioc_g_fmt_cap, |
| 1477 | .vidioc_try_fmt_cap = vidioc_try_fmt_cap, |
| 1478 | .vidioc_s_fmt_cap = vidioc_s_fmt_cap, |
| 1479 | .vidioc_s_std = vidioc_s_std, |
| 1480 | .vidioc_enum_input = vidioc_enum_input, |
| 1481 | .vidioc_g_input = vidioc_g_input, |
| 1482 | .vidioc_s_input = vidioc_s_input, |
| 1483 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1484 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1485 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1486 | .vidioc_g_tuner = vidioc_g_tuner, |
| 1487 | .vidioc_s_tuner = vidioc_s_tuner, |
| 1488 | .vidioc_g_frequency = vidioc_g_frequency, |
| 1489 | .vidioc_s_frequency = vidioc_s_frequency, |
| 1490 | .vidioc_streamon = vidioc_streamon, |
| 1491 | .vidioc_streamoff = vidioc_streamoff, |
| 1492 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1493 | .vidioc_querybuf = vidioc_querybuf, |
| 1494 | .vidioc_qbuf = vidioc_qbuf, |
| 1495 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1496 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1497 | .vidiocgmbuf = vidiocgmbuf, |
| 1498 | #endif |
| 1499 | .tvnorms = TM6000_STD, |
| 1500 | .current_norm = V4L2_STD_NTSC_M, |
| 1501 | }; |
| 1502 | /* ----------------------------------------------------------------- |
| 1503 | Initialization and module stuff |
| 1504 | ------------------------------------------------------------------*/ |
| 1505 | |
| 1506 | int tm6000_v4l2_register(struct tm6000_core *dev) |
| 1507 | { |
| 1508 | int ret; |
| 1509 | |
| 1510 | list_add_tail(&dev->tm6000_corelist,&tm6000_corelist); |
| 1511 | |
| 1512 | /* init video dma queues */ |
| 1513 | INIT_LIST_HEAD(&dev->vidq.active); |
| 1514 | INIT_LIST_HEAD(&dev->vidq.queued); |
| 1515 | |
| 1516 | dev->vidq.timeout.function = tm6000_vid_timeout; |
| 1517 | dev->vidq.timeout.data = (unsigned long)dev; |
| 1518 | init_timer(&dev->vidq.timeout); |
| 1519 | |
| 1520 | memcpy (&dev->vfd, &tm6000_template, sizeof(dev->vfd)); |
| 1521 | dev->vfd.debug=tm6000_debug; |
| 1522 | |
| 1523 | ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, video_nr); |
| 1524 | printk(KERN_INFO "Trident TVMaster TM5600/TM6000 USB2 board (Load status: %d)\n", ret); |
| 1525 | return ret; |
| 1526 | } |
| 1527 | |
| 1528 | int tm6000_v4l2_unregister(struct tm6000_core *dev) |
| 1529 | { |
| 1530 | struct tm6000_core *h; |
Michel Ludwig | 22927e8 | 2007-06-14 17:19:59 -0300 | [diff] [blame] | 1531 | struct list_head *pos, *tmp; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1532 | |
Michel Ludwig | 22927e8 | 2007-06-14 17:19:59 -0300 | [diff] [blame] | 1533 | video_unregister_device(&dev->vfd); |
| 1534 | |
| 1535 | list_for_each_safe(pos, tmp, &tm6000_corelist) { |
| 1536 | h = list_entry(pos, struct tm6000_core, tm6000_corelist); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1537 | if (h == dev) { |
Michel Ludwig | 8c9d26f | 2007-06-15 11:02:56 -0300 | [diff] [blame^] | 1538 | list_del(pos); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1539 | } |
| 1540 | } |
| 1541 | |
| 1542 | return 0; |
| 1543 | } |
| 1544 | |
| 1545 | int tm6000_v4l2_exit(void) |
| 1546 | { |
| 1547 | return 0; |
| 1548 | } |
| 1549 | |
| 1550 | module_param(video_nr, int, 0); |
| 1551 | MODULE_PARM_DESC(video_nr,"Allow changing video device number"); |
| 1552 | |
| 1553 | module_param_named (debug, tm6000_debug, int, 0444); |
| 1554 | MODULE_PARM_DESC(debug,"activates debug info"); |
| 1555 | |
| 1556 | module_param(vid_limit,int,0644); |
| 1557 | MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes"); |
| 1558 | |