?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
RT-AC56 3.0.0.4.374.37 core
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / staging / tm6000 / tm6000-video.c
blob279860f696e9998ff3ab0c71a5d91aa9c376ac5e
1 /*
2 tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
3
4 Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
5
6 Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
7 - Fixed module load/unload
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation version 2
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
25 #include <linux/fs.h>
26 #include <linux/kernel.h>
27 #include <linux/slab.h>
28 #include <linux/mm.h>
29 #include <linux/ioport.h>
30 #include <linux/init.h>
31 #include <linux/sched.h>
32 #include <linux/random.h>
33 #include <linux/version.h>
34 #include <linux/usb.h>
35 #include <linux/videodev2.h>
36 #include <media/v4l2-ioctl.h>
37 #include <linux/interrupt.h>
38 #include <linux/kthread.h>
39 #include <linux/highmem.h>
40 #include <linux/freezer.h>
41
42 #include "tm6000-regs.h"
43 #include "tm6000.h"
44
45 #define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
46
47 /* Limits minimum and default number of buffers */
48 #define TM6000_MIN_BUF 4
49 #define TM6000_DEF_BUF 8
50
51 #define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
52
53 /* Declare static vars that will be used as parameters */
54 static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
55 static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
56
57 /* Debug level */
58 int tm6000_debug;
59 EXPORT_SYMBOL_GPL(tm6000_debug);
60
61 /* supported controls */
62 static struct v4l2_queryctrl tm6000_qctrl[] = {
63 {
64 .id = V4L2_CID_BRIGHTNESS,
65 .type = V4L2_CTRL_TYPE_INTEGER,
66 .name = "Brightness",
67 .minimum = 0,
68 .maximum = 255,
69 .step = 1,
70 .default_value = 54,
71 .flags = 0,
72 }, {
73 .id = V4L2_CID_CONTRAST,
74 .type = V4L2_CTRL_TYPE_INTEGER,
75 .name = "Contrast",
76 .minimum = 0,
77 .maximum = 255,
78 .step = 0x1,
79 .default_value = 119,
80 .flags = 0,
81 }, {
82 .id = V4L2_CID_SATURATION,
83 .type = V4L2_CTRL_TYPE_INTEGER,
84 .name = "Saturation",
85 .minimum = 0,
86 .maximum = 255,
87 .step = 0x1,
88 .default_value = 112,
89 .flags = 0,
90 }, {
91 .id = V4L2_CID_HUE,
92 .type = V4L2_CTRL_TYPE_INTEGER,
93 .name = "Hue",
94 .minimum = -128,
95 .maximum = 127,
96 .step = 0x1,
97 .default_value = 0,
98 .flags = 0,
99 }
100 };
101
102 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
103
104 static struct tm6000_fmt format[] = {
105 {
106 .name = "4:2:2, packed, YVY2",
107 .fourcc = V4L2_PIX_FMT_YUYV,
108 .depth = 16,
109 }, {
110 .name = "4:2:2, packed, UYVY",
111 .fourcc = V4L2_PIX_FMT_UYVY,
112 .depth = 16,
113 }, {
114 .name = "A/V + VBI mux packet",
115 .fourcc = V4L2_PIX_FMT_TM6000,
116 .depth = 16,
117 }
118 };
119
120 /* ------------------------------------------------------------------
121 DMA and thread functions
122 ------------------------------------------------------------------*/
123
124 #define norm_maxw(a) 720
125 #define norm_maxh(a) 576
126
127 #define norm_minw(a) norm_maxw(a)
128 #define norm_minh(a) norm_maxh(a)
129
130 /*
131 * video-buf generic routine to get the next available buffer
132 */
133 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
134 struct tm6000_buffer **buf)
135 {
136 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
137 char *outp;
138
139 if (list_empty(&dma_q->active)) {
140 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
141 *buf = NULL;
142 return;
143 }
144
145 *buf = list_entry(dma_q->active.next,
146 struct tm6000_buffer, vb.queue);
147
148 if (!buf)
149 return;
150
151 /* Cleans up buffer - Usefull for testing for frame/URB loss */
152 outp = videobuf_to_vmalloc(&(*buf)->vb);
153
154 return;
155 }
156
157 /*
158 * Announces that a buffer were filled and request the next
159 */
160 static inline void buffer_filled(struct tm6000_core *dev,
161 struct tm6000_dmaqueue *dma_q,
162 struct tm6000_buffer *buf)
163 {
164 /* Advice that buffer was filled */
165 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
166 buf->vb.state = VIDEOBUF_DONE;
167 buf->vb.field_count++;
168 do_gettimeofday(&buf->vb.ts);
169
170 list_del(&buf->vb.queue);
171 wake_up(&buf->vb.done);
172 }
173
174 const char *tm6000_msg_type[] = {
175 "unknown(0)", /* 0 */
176 "video", /* 1 */
177 "audio", /* 2 */
178 "vbi", /* 3 */
179 "pts", /* 4 */
180 "err", /* 5 */
181 "unknown(6)", /* 6 */
182 "unknown(7)", /* 7 */
183 };
184
185 /*
186 * Identify the tm5600/6000 buffer header type and properly handles
187 */
188 static int copy_streams(u8 *data, unsigned long len,
189 struct urb *urb)
190 {
191 struct tm6000_dmaqueue *dma_q = urb->context;
192 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
193 u8 *ptr=data, *endp=data+len, c;
194 unsigned long header=0;
195 int rc=0;
196 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
197 struct tm6000_buffer *vbuf;
198 char *voutp = NULL;
199 unsigned int linewidth;
200
201 /* get video buffer */
202 get_next_buf (dma_q, &vbuf);
203 if (!vbuf)
204 return rc;
205 voutp = videobuf_to_vmalloc(&vbuf->vb);
206 if (!voutp)
207 return 0;
208
209 for (ptr = data; ptr < endp;) {
210 if (!dev->isoc_ctl.cmd) {
211 /* Header */
212 if (dev->isoc_ctl.tmp_buf_len > 0) {
213 /* from last urb or packet */
214 header = dev->isoc_ctl.tmp_buf;
215 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
216 memcpy ((u8 *)&header +
217 dev->isoc_ctl.tmp_buf_len,
218 ptr,
219 4 - dev->isoc_ctl.tmp_buf_len);
220 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
221 }
222 dev->isoc_ctl.tmp_buf_len = 0;
223 } else {
224 if (ptr + 3 >= endp) {
225 /* have incomplete header */
226 dev->isoc_ctl.tmp_buf_len = endp - ptr;
227 memcpy (&dev->isoc_ctl.tmp_buf, ptr,
228 dev->isoc_ctl.tmp_buf_len);
229 return rc;
230 }
231 /* Seek for sync */
232 for (; ptr < endp - 3; ptr++) {
233 if (*(ptr + 3) == 0x47)
234 break;
235 }
236 /* Get message header */
237 header = *(unsigned long *)ptr;
238 ptr += 4;
239 }
240
241 /* split the header fields */
242 c = (header >> 24) & 0xff;
243 size = ((header & 0x7e) << 1);
244 if (size > 0)
245 size -= 4;
246 block = (header >> 7) & 0xf;
247 field = (header >> 11) & 0x1;
248 line = (header >> 12) & 0x1ff;
249 cmd = (header >> 21) & 0x7;
250 /* Validates haeder fields */
251 if (size > TM6000_URB_MSG_LEN)
252 size = TM6000_URB_MSG_LEN;
253 pktsize = TM6000_URB_MSG_LEN;
254 /* calculate position in buffer
255 * and change the buffer
256 */
257 switch (cmd) {
258 case TM6000_URB_MSG_VIDEO:
259 if ((dev->isoc_ctl.vfield != field) &&
260 (field == 1)) {
261 /* Announces that a new buffer
262 * were filled
263 */
264 buffer_filled (dev, dma_q, vbuf);
265 dprintk (dev, V4L2_DEBUG_ISOC,
266 "new buffer filled\n");
267 get_next_buf (dma_q, &vbuf);
268 if (!vbuf)
269 return rc;
270 voutp = videobuf_to_vmalloc (&vbuf->vb);
271 if (!voutp)
272 return rc;
273 memset(voutp, 0, vbuf->vb.size);
274 }
275 linewidth = vbuf->vb.width << 1;
276 pos = ((line << 1) - field - 1) * linewidth +
277 block * TM6000_URB_MSG_LEN;
278 /* Don't allow to write out of the buffer */
279 if (pos + size > vbuf->vb.size)
280 cmd = TM6000_URB_MSG_ERR;
281 dev->isoc_ctl.vfield = field;
282 break;
283 case TM6000_URB_MSG_VBI:
284 break;
285 case TM6000_URB_MSG_AUDIO:
286 case TM6000_URB_MSG_PTS:
287 size = pktsize; /* Size is always 180 bytes */
288 break;
289 }
290 } else {
291 /* Continue the last copy */
292 cmd = dev->isoc_ctl.cmd;
293 size = dev->isoc_ctl.size;
294 pos = dev->isoc_ctl.pos;
295 pktsize = dev->isoc_ctl.pktsize;
296 }
297 cpysize = (endp - ptr > size) ? size : endp - ptr;
298 if (cpysize) {
299 /* copy data in different buffers */
300 switch (cmd) {
301 case TM6000_URB_MSG_VIDEO:
302 /* Fills video buffer */
303 if (vbuf)
304 memcpy (&voutp[pos], ptr, cpysize);
305 break;
306 case TM6000_URB_MSG_AUDIO:
307 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
308 break;
309 case TM6000_URB_MSG_VBI:
310 /* Need some code to copy vbi buffer */
311 break;
312 case TM6000_URB_MSG_PTS:
313 /* Need some code to copy pts */
314 break;
315 }
316 }
317 if (ptr + pktsize > endp) {
318 /* End of URB packet, but cmd processing is not
319 * complete. Preserve the state for a next packet
320 */
321 dev->isoc_ctl.pos = pos + cpysize;
322 dev->isoc_ctl.size = size - cpysize;
323 dev->isoc_ctl.cmd = cmd;
324 dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
325 ptr += endp - ptr;
326 } else {
327 dev->isoc_ctl.cmd = 0;
328 ptr += pktsize;
329 }
330 }
331 return 0;
332 }
333
334 /*
335 * Identify the tm5600/6000 buffer header type and properly handles
336 */
337 static int copy_multiplexed(u8 *ptr, unsigned long len,
338 struct urb *urb)
339 {
340 struct tm6000_dmaqueue *dma_q = urb->context;
341 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
342 unsigned int pos=dev->isoc_ctl.pos,cpysize;
343 int rc=1;
344 struct tm6000_buffer *buf;
345 char *outp = NULL;
346
347 get_next_buf(dma_q, &buf);
348 if (buf)
349 outp = videobuf_to_vmalloc(&buf->vb);
350
351 if (!outp)
352 return 0;
353
354 while (len>0) {
355 cpysize=min(len,buf->vb.size-pos);
356 //printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
357 memcpy(&outp[pos], ptr, cpysize);
358 pos+=cpysize;
359 ptr+=cpysize;
360 len-=cpysize;
361 if (pos >= buf->vb.size) {
362 pos=0;
363 /* Announces that a new buffer were filled */
364 buffer_filled (dev, dma_q, buf);
365 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
366 get_next_buf (dma_q, &buf);
367 if (!buf)
368 break;
369 outp = videobuf_to_vmalloc(&(buf->vb));
370 if (!outp)
371 return rc;
372 pos = 0;
373 }
374 }
375
376 dev->isoc_ctl.pos=pos;
377 return rc;
378 }
379
380 static void inline print_err_status (struct tm6000_core *dev,
381 int packet, int status)
382 {
383 char *errmsg = "Unknown";
384
385 switch(status) {
386 case -ENOENT:
387 errmsg = "unlinked synchronuously";
388 break;
389 case -ECONNRESET:
390 errmsg = "unlinked asynchronuously";
391 break;
392 case -ENOSR:
393 errmsg = "Buffer error (overrun)";
394 break;
395 case -EPIPE:
396 errmsg = "Stalled (device not responding)";
397 break;
398 case -EOVERFLOW:
399 errmsg = "Babble (bad cable?)";
400 break;
401 case -EPROTO:
402 errmsg = "Bit-stuff error (bad cable?)";
403 break;
404 case -EILSEQ:
405 errmsg = "CRC/Timeout (could be anything)";
406 break;
407 case -ETIME:
408 errmsg = "Device does not respond";
409 break;
410 }
411 if (packet<0) {
412 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
413 status, errmsg);
414 } else {
415 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
416 packet, status, errmsg);
417 }
418 }
419
420
421 /*
422 * Controls the isoc copy of each urb packet
423 */
424 static inline int tm6000_isoc_copy(struct urb *urb)
425 {
426 struct tm6000_dmaqueue *dma_q = urb->context;
427 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
428 int i, len=0, rc=1, status;
429 char *p;
430
431 if (urb->status < 0) {
432 print_err_status (dev, -1, urb->status);
433 return 0;
434 }
435
436 for (i = 0; i < urb->number_of_packets; i++) {
437 status = urb->iso_frame_desc[i].status;
438
439 if (status<0) {
440 print_err_status (dev,i,status);
441 continue;
442 }
443
444 len = urb->iso_frame_desc[i].actual_length;
445
446 if (len > 0) {
447 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
448 if (!urb->iso_frame_desc[i].status) {
449 if ((dev->fourcc)==V4L2_PIX_FMT_TM6000) {
450 rc=copy_multiplexed(p, len, urb);
451 if (rc<=0)
452 return rc;
453 } else {
454 copy_streams(p, len, urb);
455 }
456 }
457 }
458 }
459 return rc;
460 }
461
462 /* ------------------------------------------------------------------
463 URB control
464 ------------------------------------------------------------------*/
465
466 /*
467 * IRQ callback, called by URB callback
468 */
469 static void tm6000_irq_callback(struct urb *urb)
470 {
471 struct tm6000_dmaqueue *dma_q = urb->context;
472 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
473 int i;
474
475 if (!dev)
476 return;
477
478 spin_lock(&dev->slock);
479 tm6000_isoc_copy(urb);
480 spin_unlock(&dev->slock);
481
482 /* Reset urb buffers */
483 for (i = 0; i < urb->number_of_packets; i++) {
484 urb->iso_frame_desc[i].status = 0;
485 urb->iso_frame_desc[i].actual_length = 0;
486 }
487
488 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
489 if (urb->status)
490 tm6000_err("urb resubmit failed (error=%i)\n",
491 urb->status);
492 }
493
494 /*
495 * Stop and Deallocate URBs
496 */
497 static void tm6000_uninit_isoc(struct tm6000_core *dev)
498 {
499 struct urb *urb;
500 int i;
501
502 dev->isoc_ctl.buf = NULL;
503 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
504 urb=dev->isoc_ctl.urb[i];
505 if (urb) {
506 usb_kill_urb(urb);
507 usb_unlink_urb(urb);
508 if (dev->isoc_ctl.transfer_buffer[i]) {
509 usb_free_coherent(dev->udev,
510 urb->transfer_buffer_length,
511 dev->isoc_ctl.transfer_buffer[i],
512 urb->transfer_dma);
513 }
514 usb_free_urb(urb);
515 dev->isoc_ctl.urb[i] = NULL;
516 }
517 dev->isoc_ctl.transfer_buffer[i] = NULL;
518 }
519
520 kfree (dev->isoc_ctl.urb);
521 kfree (dev->isoc_ctl.transfer_buffer);
522
523 dev->isoc_ctl.urb=NULL;
524 dev->isoc_ctl.transfer_buffer=NULL;
525 dev->isoc_ctl.num_bufs = 0;
526 }
527
528 /*
529 * Allocate URBs and start IRQ
530 */
531 static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize)
532 {
533 struct tm6000_dmaqueue *dma_q = &dev->vidq;
534 int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
535 struct urb *urb;
536
537 /* De-allocates all pending stuff */
538 tm6000_uninit_isoc(dev);
539
540 usb_set_interface(dev->udev,
541 dev->isoc_in.bInterfaceNumber,
542 dev->isoc_in.bAlternateSetting);
543
544 pipe = usb_rcvisocpipe(dev->udev,
545 dev->isoc_in.endp->desc.bEndpointAddress &
546 USB_ENDPOINT_NUMBER_MASK);
547
548 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
549
550 if (size > dev->isoc_in.maxsize)
551 size = dev->isoc_in.maxsize;
552
553 dev->isoc_ctl.max_pkt_size = size;
554
555 max_packets = ( framesize + size - 1) / size;
556
557 if (max_packets > TM6000_MAX_ISO_PACKETS)
558 max_packets = TM6000_MAX_ISO_PACKETS;
559
560 sb_size = max_packets * size;
561
562 dev->isoc_ctl.num_bufs = num_bufs;
563
564 dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
565 if (!dev->isoc_ctl.urb) {
566 tm6000_err("cannot alloc memory for usb buffers\n");
567 return -ENOMEM;
568 }
569
570 dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
571 GFP_KERNEL);
572 if (!dev->isoc_ctl.transfer_buffer) {
573 tm6000_err("cannot allocate memory for usbtransfer\n");
574 kfree(dev->isoc_ctl.urb);
575 return -ENOMEM;
576 }
577
578 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
579 " (%d bytes) of %d bytes each to handle %u size\n",
580 max_packets, num_bufs, sb_size,
581 dev->isoc_in.maxsize, size);
582
583 /* allocate urbs and transfer buffers */
584 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
585 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
586 if (!urb) {
587 tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
588 tm6000_uninit_isoc(dev);
589 usb_free_urb(urb);
590 return -ENOMEM;
591 }
592 dev->isoc_ctl.urb[i] = urb;
593
594 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
595 sb_size, GFP_KERNEL, &urb->transfer_dma);
596 if (!dev->isoc_ctl.transfer_buffer[i]) {
597 tm6000_err ("unable to allocate %i bytes for transfer"
598 " buffer %i%s\n",
599 sb_size, i,
600 in_interrupt()?" while in int":"");
601 tm6000_uninit_isoc(dev);
602 return -ENOMEM;
603 }
604 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
605
606 usb_fill_bulk_urb(urb, dev->udev, pipe,
607 dev->isoc_ctl.transfer_buffer[i], sb_size,
608 tm6000_irq_callback, dma_q);
609 urb->interval = dev->isoc_in.endp->desc.bInterval;
610 urb->number_of_packets = max_packets;
611 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
612
613 for (j = 0; j < max_packets; j++) {
614 urb->iso_frame_desc[j].offset = size * j;
615 urb->iso_frame_desc[j].length = size;
616 }
617 }
618
619 return 0;
620 }
621
622 static int tm6000_start_thread( struct tm6000_core *dev)
623 {
624 struct tm6000_dmaqueue *dma_q = &dev->vidq;
625 int i;
626
627 dma_q->frame=0;
628 dma_q->ini_jiffies=jiffies;
629
630 init_waitqueue_head(&dma_q->wq);
631
632 /* submit urbs and enables IRQ */
633 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
634 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
635 if (rc) {
636 tm6000_err("submit of urb %i failed (error=%i)\n", i,
637 rc);
638 tm6000_uninit_isoc(dev);
639 return rc;
640 }
641 }
642
643 return 0;
644 }
645
646 /* ------------------------------------------------------------------
647 Videobuf operations
648 ------------------------------------------------------------------*/
649
650 static int
651 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
652 {
653 struct tm6000_fh *fh = vq->priv_data;
654
655 *size = fh->fmt->depth * fh->width * fh->height >> 3;
656 if (0 == *count)
657 *count = TM6000_DEF_BUF;
658
659 if (*count < TM6000_MIN_BUF) {
660 *count=TM6000_MIN_BUF;
661 }
662
663 while (*size * *count > vid_limit * 1024 * 1024)
664 (*count)--;
665
666 return 0;
667 }
668
669 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
670 {
671 struct tm6000_fh *fh = vq->priv_data;
672 struct tm6000_core *dev = fh->dev;
673 unsigned long flags;
674
675 if (in_interrupt())
676 BUG();
677
678 /* We used to wait for the buffer to finish here, but this didn't work
679 because, as we were keeping the state as VIDEOBUF_QUEUED,
680 videobuf_queue_cancel marked it as finished for us.
681 (Also, it could wedge forever if the hardware was misconfigured.)
682
683 This should be safe; by the time we get here, the buffer isn't
684 queued anymore. If we ever start marking the buffers as
685 VIDEOBUF_ACTIVE, it won't be, though.
686 */
687 spin_lock_irqsave(&dev->slock, flags);
688 if (dev->isoc_ctl.buf == buf)
689 dev->isoc_ctl.buf = NULL;
690 spin_unlock_irqrestore(&dev->slock, flags);
691
692 videobuf_vmalloc_free(&buf->vb);
693 buf->vb.state = VIDEOBUF_NEEDS_INIT;
694 }
695
696 static int
697 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
698 enum v4l2_field field)
699 {
700 struct tm6000_fh *fh = vq->priv_data;
701 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
702 struct tm6000_core *dev = fh->dev;
703 int rc = 0, urb_init = 0;
704
705 BUG_ON(NULL == fh->fmt);
706
707
708 /* The only currently supported format is 16 bits/pixel */
709 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
710 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
711 return -EINVAL;
712
713 if (buf->fmt != fh->fmt ||
714 buf->vb.width != fh->width ||
715 buf->vb.height != fh->height ||
716 buf->vb.field != field) {
717 buf->fmt = fh->fmt;
718 buf->vb.width = fh->width;
719 buf->vb.height = fh->height;
720 buf->vb.field = field;
721 buf->vb.state = VIDEOBUF_NEEDS_INIT;
722 }
723
724 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
725 if (0 != (rc = videobuf_iolock(vq, &buf->vb, NULL)))
726 goto fail;
727 urb_init = 1;
728 }
729
730 if (!dev->isoc_ctl.num_bufs)
731 urb_init = 1;
732
733 if (urb_init) {
734 rc = tm6000_prepare_isoc(dev, buf->vb.size);
735 if (rc < 0)
736 goto fail;
737
738 rc = tm6000_start_thread(dev);
739 if (rc < 0)
740 goto fail;
741
742 }
743
744 buf->vb.state = VIDEOBUF_PREPARED;
745 return 0;
746
747 fail:
748 free_buffer(vq, buf);
749 return rc;
750 }
751
752 static void
753 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
754 {
755 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
756 struct tm6000_fh *fh = vq->priv_data;
757 struct tm6000_core *dev = fh->dev;
758 struct tm6000_dmaqueue *vidq = &dev->vidq;
759
760 buf->vb.state = VIDEOBUF_QUEUED;
761 list_add_tail(&buf->vb.queue, &vidq->active);
762 }
763
764 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
765 {
766 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
767
768 free_buffer(vq,buf);
769 }
770
771 static struct videobuf_queue_ops tm6000_video_qops = {
772 .buf_setup = buffer_setup,
773 .buf_prepare = buffer_prepare,
774 .buf_queue = buffer_queue,
775 .buf_release = buffer_release,
776 };
777
778 /* ------------------------------------------------------------------
779 IOCTL handling
780 ------------------------------------------------------------------*/
781
782 static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh)
783 {
784 /* is it free? */
785 mutex_lock(&dev->lock);
786 if (dev->resources) {
787 /* no, someone else uses it */
788 mutex_unlock(&dev->lock);
789 return 0;
790 }
791 /* it's free, grab it */
792 dev->resources =1;
793 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
794 mutex_unlock(&dev->lock);
795 return 1;
796 }
797
798 static int res_locked(struct tm6000_core *dev)
799 {
800 return (dev->resources);
801 }
802
803 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
804 {
805 mutex_lock(&dev->lock);
806 dev->resources = 0;
807 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
808 mutex_unlock(&dev->lock);
809 }
810
811 /* ------------------------------------------------------------------
812 IOCTL vidioc handling
813 ------------------------------------------------------------------*/
814 static int vidioc_querycap (struct file *file, void *priv,
815 struct v4l2_capability *cap)
816 {
817 // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
818
819 strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
820 strlcpy(cap->card,"Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
821 // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
822 cap->version = TM6000_VERSION;
823 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
824 V4L2_CAP_STREAMING |
825 V4L2_CAP_TUNER |
826 V4L2_CAP_READWRITE;
827 return 0;
828 }
829
830 static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
831 struct v4l2_fmtdesc *f)
832 {
833 if (unlikely(f->index >= ARRAY_SIZE(format)))
834 return -EINVAL;
835
836 strlcpy(f->description,format[f->index].name,sizeof(f->description));
837 f->pixelformat = format[f->index].fourcc;
838 return 0;
839 }
840
841 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
842 struct v4l2_format *f)
843 {
844 struct tm6000_fh *fh=priv;
845
846 f->fmt.pix.width = fh->width;
847 f->fmt.pix.height = fh->height;
848 f->fmt.pix.field = fh->vb_vidq.field;
849 f->fmt.pix.pixelformat = fh->fmt->fourcc;
850 f->fmt.pix.bytesperline =
851 (f->fmt.pix.width * fh->fmt->depth) >> 3;
852 f->fmt.pix.sizeimage =
853 f->fmt.pix.height * f->fmt.pix.bytesperline;
854
855 return (0);
856 }
857
858 static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc)
859 {
860 unsigned int i;
861
862 for (i = 0; i < ARRAY_SIZE(format); i++)
863 if (format[i].fourcc == fourcc)
864 return format+i;
865 return NULL;
866 }
867
868 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
869 struct v4l2_format *f)
870 {
871 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
872 struct tm6000_fmt *fmt;
873 enum v4l2_field field;
874
875 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
876 if (NULL == fmt) {
877 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
878 " invalid.\n", f->fmt.pix.pixelformat);
879 return -EINVAL;
880 }
881
882 field = f->fmt.pix.field;
883
884 if (field == V4L2_FIELD_ANY) {
885 // field=V4L2_FIELD_INTERLACED;
886 field=V4L2_FIELD_SEQ_TB;
887 } else if (V4L2_FIELD_INTERLACED != field) {
888 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
889 return -EINVAL;
890 }
891
892 tm6000_get_std_res (dev);
893
894 f->fmt.pix.width = dev->width;
895 f->fmt.pix.height = dev->height;
896
897 f->fmt.pix.width &= ~0x01;
898
899 f->fmt.pix.field = field;
900
901 f->fmt.pix.bytesperline =
902 (f->fmt.pix.width * fmt->depth) >> 3;
903 f->fmt.pix.sizeimage =
904 f->fmt.pix.height * f->fmt.pix.bytesperline;
905
906 return 0;
907 }
908
909 static int vidioc_s_fmt_vid_cap (struct file *file, void *priv,
910 struct v4l2_format *f)
911 {
912 struct tm6000_fh *fh=priv;
913 struct tm6000_core *dev = fh->dev;
914 int ret = vidioc_try_fmt_vid_cap(file,fh,f);
915 if (ret < 0)
916 return (ret);
917
918 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
919 fh->width = f->fmt.pix.width;
920 fh->height = f->fmt.pix.height;
921 fh->vb_vidq.field = f->fmt.pix.field;
922 fh->type = f->type;
923
924 dev->fourcc = f->fmt.pix.pixelformat;
925
926 tm6000_set_fourcc_format(dev);
927
928 return (0);
929 }
930
931 static int vidioc_reqbufs (struct file *file, void *priv,
932 struct v4l2_requestbuffers *p)
933 {
934 struct tm6000_fh *fh=priv;
935
936 return (videobuf_reqbufs(&fh->vb_vidq, p));
937 }
938
939 static int vidioc_querybuf (struct file *file, void *priv,
940 struct v4l2_buffer *p)
941 {
942 struct tm6000_fh *fh=priv;
943
944 return (videobuf_querybuf(&fh->vb_vidq, p));
945 }
946
947 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
948 {
949 struct tm6000_fh *fh=priv;
950
951 return (videobuf_qbuf(&fh->vb_vidq, p));
952 }
953
954 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
955 {
956 struct tm6000_fh *fh=priv;
957
958 return (videobuf_dqbuf(&fh->vb_vidq, p,
959 file->f_flags & O_NONBLOCK));
960 }
961
962 #ifdef CONFIG_VIDEO_V4L1_COMPAT
963 static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
964 {
965 struct tm6000_fh *fh=priv;
966
967 return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
968 }
969 #endif
970
971 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
972 {
973 struct tm6000_fh *fh=priv;
974 struct tm6000_core *dev = fh->dev;
975
976 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
977 return -EINVAL;
978 if (i != fh->type)
979 return -EINVAL;
980
981 if (!res_get(dev,fh))
982 return -EBUSY;
983 return (videobuf_streamon(&fh->vb_vidq));
984 }
985
986 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
987 {
988 struct tm6000_fh *fh=priv;
989 struct tm6000_core *dev = fh->dev;
990
991 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
992 return -EINVAL;
993 if (i != fh->type)
994 return -EINVAL;
995
996 videobuf_streamoff(&fh->vb_vidq);
997 res_free(dev,fh);
998
999 return (0);
1000 }
1001
1002 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
1003 {
1004 int rc=0;
1005 struct tm6000_fh *fh=priv;
1006 struct tm6000_core *dev = fh->dev;
1007
1008 rc=tm6000_set_standard (dev, norm);
1009
1010 fh->width = dev->width;
1011 fh->height = dev->height;
1012
1013 if (rc<0)
1014 return rc;
1015
1016 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1017
1018 return 0;
1019 }
1020
1021 static int vidioc_enum_input (struct file *file, void *priv,
1022 struct v4l2_input *inp)
1023 {
1024 switch (inp->index) {
1025 case TM6000_INPUT_TV:
1026 inp->type = V4L2_INPUT_TYPE_TUNER;
1027 strcpy(inp->name,"Television");
1028 break;
1029 case TM6000_INPUT_COMPOSITE:
1030 inp->type = V4L2_INPUT_TYPE_CAMERA;
1031 strcpy(inp->name,"Composite");
1032 break;
1033 case TM6000_INPUT_SVIDEO:
1034 inp->type = V4L2_INPUT_TYPE_CAMERA;
1035 strcpy(inp->name,"S-Video");
1036 break;
1037 default:
1038 return -EINVAL;
1039 }
1040 inp->std = TM6000_STD;
1041
1042 return 0;
1043 }
1044
1045 static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
1046 {
1047 struct tm6000_fh *fh=priv;
1048 struct tm6000_core *dev = fh->dev;
1049
1050 *i=dev->input;
1051
1052 return 0;
1053 }
1054 static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
1055 {
1056 struct tm6000_fh *fh=priv;
1057 struct tm6000_core *dev = fh->dev;
1058 int rc=0;
1059 char buf[1];
1060
1061 switch (i) {
1062 case TM6000_INPUT_TV:
1063 dev->input=i;
1064 *buf=0;
1065 break;
1066 case TM6000_INPUT_COMPOSITE:
1067 case TM6000_INPUT_SVIDEO:
1068 dev->input=i;
1069 *buf=1;
1070 break;
1071 default:
1072 return -EINVAL;
1073 }
1074 rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR,
1075 REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
1076
1077 if (!rc) {
1078 dev->input=i;
1079 rc=vidioc_s_std (file, priv, &dev->vfd->current_norm);
1080 }
1081
1082 return (rc);
1083 }
1084
1085 /* --- controls ---------------------------------------------- */
1086 static int vidioc_queryctrl (struct file *file, void *priv,
1087 struct v4l2_queryctrl *qc)
1088 {
1089 int i;
1090
1091 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1092 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1093 memcpy(qc, &(tm6000_qctrl[i]),
1094 sizeof(*qc));
1095 return (0);
1096 }
1097
1098 return -EINVAL;
1099 }
1100
1101 static int vidioc_g_ctrl (struct file *file, void *priv,
1102 struct v4l2_control *ctrl)
1103 {
1104 struct tm6000_fh *fh=priv;
1105 struct tm6000_core *dev = fh->dev;
1106 int val;
1107
1108 switch (ctrl->id) {
1109 case V4L2_CID_CONTRAST:
1110 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1111 break;
1112 case V4L2_CID_BRIGHTNESS:
1113 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1114 return 0;
1115 case V4L2_CID_SATURATION:
1116 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1117 return 0;
1118 case V4L2_CID_HUE:
1119 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1120 return 0;
1121 default:
1122 return -EINVAL;
1123 }
1124
1125 if (val<0)
1126 return val;
1127
1128 ctrl->value=val;
1129
1130 return 0;
1131 }
1132 static int vidioc_s_ctrl (struct file *file, void *priv,
1133 struct v4l2_control *ctrl)
1134 {
1135 struct tm6000_fh *fh =priv;
1136 struct tm6000_core *dev = fh->dev;
1137 u8 val=ctrl->value;
1138
1139 switch (ctrl->id) {
1140 case V4L2_CID_CONTRAST:
1141 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1142 return 0;
1143 case V4L2_CID_BRIGHTNESS:
1144 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1145 return 0;
1146 case V4L2_CID_SATURATION:
1147 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1148 return 0;
1149 case V4L2_CID_HUE:
1150 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1151 return 0;
1152 }
1153 return -EINVAL;
1154 }
1155
1156 static int vidioc_g_tuner (struct file *file, void *priv,
1157 struct v4l2_tuner *t)
1158 {
1159 struct tm6000_fh *fh =priv;
1160 struct tm6000_core *dev = fh->dev;
1161
1162 if (unlikely(UNSET == dev->tuner_type))
1163 return -EINVAL;
1164 if (0 != t->index)
1165 return -EINVAL;
1166
1167 strcpy(t->name, "Television");
1168 t->type = V4L2_TUNER_ANALOG_TV;
1169 t->capability = V4L2_TUNER_CAP_NORM;
1170 t->rangehigh = 0xffffffffUL;
1171 t->rxsubchans = V4L2_TUNER_SUB_MONO;
1172
1173 return 0;
1174 }
1175
1176 static int vidioc_s_tuner (struct file *file, void *priv,
1177 struct v4l2_tuner *t)
1178 {
1179 struct tm6000_fh *fh =priv;
1180 struct tm6000_core *dev = fh->dev;
1181
1182 if (UNSET == dev->tuner_type)
1183 return -EINVAL;
1184 if (0 != t->index)
1185 return -EINVAL;
1186
1187 return 0;
1188 }
1189
1190 static int vidioc_g_frequency (struct file *file, void *priv,
1191 struct v4l2_frequency *f)
1192 {
1193 struct tm6000_fh *fh =priv;
1194 struct tm6000_core *dev = fh->dev;
1195
1196 if (unlikely(UNSET == dev->tuner_type))
1197 return -EINVAL;
1198
1199 f->type = V4L2_TUNER_ANALOG_TV;
1200 f->frequency = dev->freq;
1201
1202 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1203
1204 return 0;
1205 }
1206
1207 static int vidioc_s_frequency (struct file *file, void *priv,
1208 struct v4l2_frequency *f)
1209 {
1210 struct tm6000_fh *fh =priv;
1211 struct tm6000_core *dev = fh->dev;
1212
1213 if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
1214 return -EINVAL;
1215
1216 if (unlikely(UNSET == dev->tuner_type))
1217 return -EINVAL;
1218 if (unlikely(f->tuner != 0))
1219 return -EINVAL;
1220
1221 // mutex_lock(&dev->lock);
1222 dev->freq = f->frequency;
1223 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1224 // mutex_unlock(&dev->lock);
1225
1226 return 0;
1227 }
1228
1229 /* ------------------------------------------------------------------
1230 File operations for the device
1231 ------------------------------------------------------------------*/
1232
1233 static int tm6000_open(struct file *file)
1234 {
1235 struct video_device *vdev = video_devdata(file);
1236 struct tm6000_core *dev = video_drvdata(file);
1237 struct tm6000_fh *fh;
1238 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1239 int i,rc;
1240
1241 printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1242 video_device_node_name(vdev));
1243
1244 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1245 video_device_node_name(vdev));
1246
1247
1248 /* If more than one user, mutex should be added */
1249 dev->users++;
1250
1251 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1252 video_device_node_name(vdev), v4l2_type_names[type],
1253 dev->users);
1254
1255 /* allocate + initialize per filehandle data */
1256 fh = kzalloc(sizeof(*fh),GFP_KERNEL);
1257 if (NULL == fh) {
1258 dev->users--;
1259 return -ENOMEM;
1260 }
1261
1262 file->private_data = fh;
1263 fh->dev = dev;
1264
1265 fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1266 dev->fourcc = format[0].fourcc;
1267
1268 fh->fmt = format_by_fourcc(dev->fourcc);
1269
1270 tm6000_get_std_res (dev);
1271
1272 fh->width = dev->width;
1273 fh->height = dev->height;
1274
1275 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1276 "dev->vidq=0x%08lx\n",
1277 (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
1278 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1279 "queued=%d\n",list_empty(&dev->vidq.queued));
1280 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1281 "active=%d\n",list_empty(&dev->vidq.active));
1282
1283 /* initialize hardware on analog mode */
1284 if (dev->mode!=TM6000_MODE_ANALOG) {
1285 rc=tm6000_init_analog_mode (dev);
1286 if (rc<0)
1287 return rc;
1288
1289 /* Put all controls at a sane state */
1290 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1291 qctl_regs[i] =tm6000_qctrl[i].default_value;
1292
1293 dev->mode=TM6000_MODE_ANALOG;
1294 }
1295
1296 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1297 NULL, &dev->slock,
1298 fh->type,
1299 V4L2_FIELD_INTERLACED,
1300 sizeof(struct tm6000_buffer),fh);
1301
1302 return 0;
1303 }
1304
1305 static ssize_t
1306 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1307 {
1308 struct tm6000_fh *fh = file->private_data;
1309
1310 if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1311 if (res_locked(fh->dev))
1312 return -EBUSY;
1313
1314 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1315 file->f_flags & O_NONBLOCK);
1316 }
1317 return 0;
1318 }
1319
1320 static unsigned int
1321 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1322 {
1323 struct tm6000_fh *fh = file->private_data;
1324 struct tm6000_buffer *buf;
1325
1326 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1327 return POLLERR;
1328
1329 if (res_get(fh->dev,fh)) {
1330 /* streaming capture */
1331 if (list_empty(&fh->vb_vidq.stream))
1332 return POLLERR;
1333 buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
1334 } else {
1335 /* read() capture */
1336 return videobuf_poll_stream(file, &fh->vb_vidq,
1337 wait);
1338 }
1339 poll_wait(file, &buf->vb.done, wait);
1340 if (buf->vb.state == VIDEOBUF_DONE ||
1341 buf->vb.state == VIDEOBUF_ERROR)
1342 return POLLIN|POLLRDNORM;
1343 return 0;
1344 }
1345
1346 static int tm6000_release(struct file *file)
1347 {
1348 struct tm6000_fh *fh = file->private_data;
1349 struct tm6000_core *dev = fh->dev;
1350 struct video_device *vdev = video_devdata(file);
1351
1352 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1353 video_device_node_name(vdev), dev->users);
1354
1355 dev->users--;
1356
1357 if (!dev->users) {
1358 tm6000_uninit_isoc(dev);
1359 videobuf_mmap_free(&fh->vb_vidq);
1360 }
1361
1362 kfree (fh);
1363
1364 return 0;
1365 }
1366
1367 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1368 {
1369 struct tm6000_fh *fh = file->private_data;
1370 int ret;
1371
1372 ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
1373
1374 return ret;
1375 }
1376
1377 static struct v4l2_file_operations tm6000_fops = {
1378 .owner = THIS_MODULE,
1379 .open = tm6000_open,
1380 .release = tm6000_release,
1381 .ioctl = video_ioctl2, /* V4L2 ioctl handler */
1382 .read = tm6000_read,
1383 .poll = tm6000_poll,
1384 .mmap = tm6000_mmap,
1385 };
1386
1387 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1388 .vidioc_querycap = vidioc_querycap,
1389 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1390 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1391 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1392 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1393 .vidioc_s_std = vidioc_s_std,
1394 .vidioc_enum_input = vidioc_enum_input,
1395 .vidioc_g_input = vidioc_g_input,
1396 .vidioc_s_input = vidioc_s_input,
1397 .vidioc_queryctrl = vidioc_queryctrl,
1398 .vidioc_g_ctrl = vidioc_g_ctrl,
1399 .vidioc_s_ctrl = vidioc_s_ctrl,
1400 .vidioc_g_tuner = vidioc_g_tuner,
1401 .vidioc_s_tuner = vidioc_s_tuner,
1402 .vidioc_g_frequency = vidioc_g_frequency,
1403 .vidioc_s_frequency = vidioc_s_frequency,
1404 .vidioc_streamon = vidioc_streamon,
1405 .vidioc_streamoff = vidioc_streamoff,
1406 .vidioc_reqbufs = vidioc_reqbufs,
1407 .vidioc_querybuf = vidioc_querybuf,
1408 .vidioc_qbuf = vidioc_qbuf,
1409 .vidioc_dqbuf = vidioc_dqbuf,
1410 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1411 .vidiocgmbuf = vidiocgmbuf,
1412 #endif
1413 };
1414
1415 static struct video_device tm6000_template = {
1416 .name = "tm6000",
1417 .fops = &tm6000_fops,
1418 .ioctl_ops = &video_ioctl_ops,
1419 .release = video_device_release,
1420 .tvnorms = TM6000_STD,
1421 .current_norm = V4L2_STD_NTSC_M,
1422 };
1423
1424 /* -----------------------------------------------------------------
1425 Initialization and module stuff
1426 ------------------------------------------------------------------*/
1427
1428 int tm6000_v4l2_register(struct tm6000_core *dev)
1429 {
1430 int ret = -1;
1431 struct video_device *vfd;
1432
1433 vfd = video_device_alloc();
1434 if(!vfd) {
1435 return -ENOMEM;
1436 }
1437 dev->vfd = vfd;
1438
1439 /* init video dma queues */
1440 INIT_LIST_HEAD(&dev->vidq.active);
1441 INIT_LIST_HEAD(&dev->vidq.queued);
1442
1443 memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd)));
1444 dev->vfd->debug=tm6000_debug;
1445 vfd->v4l2_dev = &dev->v4l2_dev;
1446 video_set_drvdata(vfd, dev);
1447
1448 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1449 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1450 return ret;
1451 }
1452
1453 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1454 {
1455 video_unregister_device(dev->vfd);
1456
1457 return 0;
1458 }
1459
1460 int tm6000_v4l2_exit(void)
1461 {
1462 return 0;
1463 }
1464
1465 module_param(video_nr, int, 0);
1466 MODULE_PARM_DESC(video_nr,"Allow changing video device number");
1467
1468 module_param_named (debug, tm6000_debug, int, 0444);
1469 MODULE_PARM_DESC(debug,"activates debug info");
1470
1471 module_param(vid_limit,int,0644);
1472 MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
Tomato firmware and modifications.