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7
8
9#include <linux/module.h>
10#include <linux/delay.h>
11#include <linux/errno.h>
12#include <linux/fs.h>
13#include <linux/kernel.h>
14#include <linux/slab.h>
15#include <linux/mm.h>
16#include <linux/ioport.h>
17#include <linux/init.h>
18#include <linux/sched.h>
19#include <linux/random.h>
20#include <linux/usb.h>
21#include <linux/videodev2.h>
22#include <media/v4l2-ioctl.h>
23#include <media/v4l2-event.h>
24#include <media/tuner.h>
25#include <linux/interrupt.h>
26#include <linux/kthread.h>
27#include <linux/highmem.h>
28#include <linux/freezer.h>
29
30#include "tm6000-regs.h"
31#include "tm6000.h"
32
33#define BUFFER_TIMEOUT msecs_to_jiffies(2000)
34
35
36#define TM6000_MIN_BUF 4
37#define TM6000_DEF_BUF 8
38
39#define TM6000_NUM_URB_BUF 8
40
41#define TM6000_MAX_ISO_PACKETS 46
42
43
44static unsigned int vid_limit = 16;
45static int video_nr = -1;
46static int radio_nr = -1;
47static bool keep_urb;
48
49
50int tm6000_debug;
51EXPORT_SYMBOL_GPL(tm6000_debug);
52
53static struct tm6000_fmt format[] = {
54 {
55 .name = "4:2:2, packed, YVY2",
56 .fourcc = V4L2_PIX_FMT_YUYV,
57 .depth = 16,
58 }, {
59 .name = "4:2:2, packed, UYVY",
60 .fourcc = V4L2_PIX_FMT_UYVY,
61 .depth = 16,
62 }, {
63 .name = "A/V + VBI mux packet",
64 .fourcc = V4L2_PIX_FMT_TM6000,
65 .depth = 16,
66 }
67};
68
69
70
71
72
73
74#define norm_maxw(a) 720
75#define norm_maxh(a) 576
76
77#define norm_minw(a) norm_maxw(a)
78#define norm_minh(a) norm_maxh(a)
79
80
81
82
83static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
84 struct tm6000_buffer **buf)
85{
86 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
87
88 if (list_empty(&dma_q->active)) {
89 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
90 *buf = NULL;
91 return;
92 }
93
94 *buf = list_entry(dma_q->active.next,
95 struct tm6000_buffer, vb.queue);
96}
97
98
99
100
101static inline void buffer_filled(struct tm6000_core *dev,
102 struct tm6000_dmaqueue *dma_q,
103 struct tm6000_buffer *buf)
104{
105
106 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
107 buf->vb.state = VIDEOBUF_DONE;
108 buf->vb.field_count++;
109 buf->vb.ts = ktime_get_ns();
110
111 list_del(&buf->vb.queue);
112 wake_up(&buf->vb.done);
113}
114
115
116
117
118static int copy_streams(u8 *data, unsigned long len,
119 struct urb *urb)
120{
121 struct tm6000_dmaqueue *dma_q = urb->context;
122 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
123 u8 *ptr = data, *endp = data+len;
124 unsigned long header = 0;
125 int rc = 0;
126 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
127 struct tm6000_buffer *vbuf = NULL;
128 char *voutp = NULL;
129 unsigned int linewidth;
130
131 if (!dev->radio) {
132
133 get_next_buf(dma_q, &vbuf);
134
135 if (!vbuf)
136 return rc;
137 voutp = videobuf_to_vmalloc(&vbuf->vb);
138
139 if (!voutp)
140 return 0;
141 }
142
143 for (ptr = data; ptr < endp;) {
144 if (!dev->isoc_ctl.cmd) {
145
146 if (dev->isoc_ctl.tmp_buf_len > 0) {
147
148 header = dev->isoc_ctl.tmp_buf;
149 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
150 memcpy((u8 *)&header +
151 dev->isoc_ctl.tmp_buf_len,
152 ptr,
153 4 - dev->isoc_ctl.tmp_buf_len);
154 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
155 }
156 dev->isoc_ctl.tmp_buf_len = 0;
157 } else {
158 if (ptr + 3 >= endp) {
159
160 dev->isoc_ctl.tmp_buf_len = endp - ptr;
161 memcpy(&dev->isoc_ctl.tmp_buf, ptr,
162 dev->isoc_ctl.tmp_buf_len);
163 return rc;
164 }
165
166 for (; ptr < endp - 3; ptr++) {
167 if (*(ptr + 3) == 0x47)
168 break;
169 }
170
171 header = *(unsigned long *)ptr;
172 ptr += 4;
173 }
174
175
176 size = ((header & 0x7e) << 1);
177 if (size > 0)
178 size -= 4;
179 block = (header >> 7) & 0xf;
180 field = (header >> 11) & 0x1;
181 line = (header >> 12) & 0x1ff;
182 cmd = (header >> 21) & 0x7;
183
184 if (size > TM6000_URB_MSG_LEN)
185 size = TM6000_URB_MSG_LEN;
186 pktsize = TM6000_URB_MSG_LEN;
187
188
189
190 switch (cmd) {
191 case TM6000_URB_MSG_VIDEO:
192 if (!dev->radio) {
193 if ((dev->isoc_ctl.vfield != field) &&
194 (field == 1)) {
195
196
197
198
199 buffer_filled(dev, dma_q, vbuf);
200 dprintk(dev, V4L2_DEBUG_ISOC,
201 "new buffer filled\n");
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 rc;
208 memset(voutp, 0, vbuf->vb.size);
209 }
210 linewidth = vbuf->vb.width << 1;
211 pos = ((line << 1) - field - 1) *
212 linewidth + block * TM6000_URB_MSG_LEN;
213
214 if (pos + size > vbuf->vb.size)
215 cmd = TM6000_URB_MSG_ERR;
216 dev->isoc_ctl.vfield = field;
217 }
218 break;
219 case TM6000_URB_MSG_VBI:
220 break;
221 case TM6000_URB_MSG_AUDIO:
222 case TM6000_URB_MSG_PTS:
223 size = pktsize;
224 break;
225 }
226 } else {
227
228 cmd = dev->isoc_ctl.cmd;
229 size = dev->isoc_ctl.size;
230 pos = dev->isoc_ctl.pos;
231 pktsize = dev->isoc_ctl.pktsize;
232 field = dev->isoc_ctl.field;
233 }
234 cpysize = (endp - ptr > size) ? size : endp - ptr;
235 if (cpysize) {
236
237 switch (cmd) {
238 case TM6000_URB_MSG_VIDEO:
239
240 if (vbuf)
241 memcpy(&voutp[pos], ptr, cpysize);
242 break;
243 case TM6000_URB_MSG_AUDIO: {
244 int i;
245 for (i = 0; i < cpysize; i += 2)
246 swab16s((u16 *)(ptr + i));
247
248 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
249 break;
250 }
251 case TM6000_URB_MSG_VBI:
252
253 break;
254 case TM6000_URB_MSG_PTS: {
255
256 u32 pts;
257 pts = *(u32 *)ptr;
258 dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
259 field, pts);
260 break;
261 }
262 }
263 }
264 if (ptr + pktsize > endp) {
265
266
267
268
269 dev->isoc_ctl.pos = pos + cpysize;
270 dev->isoc_ctl.size = size - cpysize;
271 dev->isoc_ctl.cmd = cmd;
272 dev->isoc_ctl.field = field;
273 dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
274 ptr += endp - ptr;
275 } else {
276 dev->isoc_ctl.cmd = 0;
277 ptr += pktsize;
278 }
279 }
280 return 0;
281}
282
283
284
285
286static int copy_multiplexed(u8 *ptr, unsigned long len,
287 struct urb *urb)
288{
289 struct tm6000_dmaqueue *dma_q = urb->context;
290 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
291 unsigned int pos = dev->isoc_ctl.pos, cpysize;
292 int rc = 1;
293 struct tm6000_buffer *buf;
294 char *outp = NULL;
295
296 get_next_buf(dma_q, &buf);
297 if (buf)
298 outp = videobuf_to_vmalloc(&buf->vb);
299
300 if (!outp)
301 return 0;
302
303 while (len > 0) {
304 cpysize = min(len, buf->vb.size-pos);
305 memcpy(&outp[pos], ptr, cpysize);
306 pos += cpysize;
307 ptr += cpysize;
308 len -= cpysize;
309 if (pos >= buf->vb.size) {
310 pos = 0;
311
312 buffer_filled(dev, dma_q, buf);
313 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
314 get_next_buf(dma_q, &buf);
315 if (!buf)
316 break;
317 outp = videobuf_to_vmalloc(&(buf->vb));
318 if (!outp)
319 return rc;
320 pos = 0;
321 }
322 }
323
324 dev->isoc_ctl.pos = pos;
325 return rc;
326}
327
328static inline void print_err_status(struct tm6000_core *dev,
329 int packet, int status)
330{
331 char *errmsg = "Unknown";
332
333 switch (status) {
334 case -ENOENT:
335 errmsg = "unlinked synchronously";
336 break;
337 case -ECONNRESET:
338 errmsg = "unlinked asynchronously";
339 break;
340 case -ENOSR:
341 errmsg = "Buffer error (overrun)";
342 break;
343 case -EPIPE:
344 errmsg = "Stalled (device not responding)";
345 break;
346 case -EOVERFLOW:
347 errmsg = "Babble (bad cable?)";
348 break;
349 case -EPROTO:
350 errmsg = "Bit-stuff error (bad cable?)";
351 break;
352 case -EILSEQ:
353 errmsg = "CRC/Timeout (could be anything)";
354 break;
355 case -ETIME:
356 errmsg = "Device does not respond";
357 break;
358 }
359 if (packet < 0) {
360 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
361 status, errmsg);
362 } else {
363 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
364 packet, status, errmsg);
365 }
366}
367
368
369
370
371
372static inline int tm6000_isoc_copy(struct urb *urb)
373{
374 struct tm6000_dmaqueue *dma_q = urb->context;
375 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
376 int i, len = 0, rc = 1, status;
377 char *p;
378
379 if (urb->status < 0) {
380 print_err_status(dev, -1, urb->status);
381 return 0;
382 }
383
384 for (i = 0; i < urb->number_of_packets; i++) {
385 status = urb->iso_frame_desc[i].status;
386
387 if (status < 0) {
388 print_err_status(dev, i, status);
389 continue;
390 }
391
392 len = urb->iso_frame_desc[i].actual_length;
393
394 if (len > 0) {
395 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
396 if (!urb->iso_frame_desc[i].status) {
397 if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
398 rc = copy_multiplexed(p, len, urb);
399 if (rc <= 0)
400 return rc;
401 } else {
402 copy_streams(p, len, urb);
403 }
404 }
405 }
406 }
407 return rc;
408}
409
410
411
412
413
414
415
416
417
418static void tm6000_irq_callback(struct urb *urb)
419{
420 struct tm6000_dmaqueue *dma_q = urb->context;
421 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
422 unsigned long flags;
423 int i;
424
425 switch (urb->status) {
426 case 0:
427 case -ETIMEDOUT:
428 break;
429
430 case -ECONNRESET:
431 case -ENOENT:
432 case -ESHUTDOWN:
433 return;
434
435 default:
436 tm6000_err("urb completion error %d.\n", urb->status);
437 break;
438 }
439
440 spin_lock_irqsave(&dev->slock, flags);
441 tm6000_isoc_copy(urb);
442 spin_unlock_irqrestore(&dev->slock, flags);
443
444
445 for (i = 0; i < urb->number_of_packets; i++) {
446 urb->iso_frame_desc[i].status = 0;
447 urb->iso_frame_desc[i].actual_length = 0;
448 }
449
450 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
451 if (urb->status)
452 tm6000_err("urb resubmit failed (error=%i)\n",
453 urb->status);
454}
455
456
457
458
459static int tm6000_alloc_urb_buffers(struct tm6000_core *dev)
460{
461 int num_bufs = TM6000_NUM_URB_BUF;
462 int i;
463
464 if (dev->urb_buffer)
465 return 0;
466
467 dev->urb_buffer = kmalloc_array(num_bufs, sizeof(void *), GFP_KERNEL);
468 if (!dev->urb_buffer)
469 return -ENOMEM;
470
471 dev->urb_dma = kmalloc_array(num_bufs, sizeof(dma_addr_t *),
472 GFP_KERNEL);
473 if (!dev->urb_dma)
474 return -ENOMEM;
475
476 for (i = 0; i < num_bufs; i++) {
477 dev->urb_buffer[i] = usb_alloc_coherent(
478 dev->udev, dev->urb_size,
479 GFP_KERNEL, &dev->urb_dma[i]);
480 if (!dev->urb_buffer[i]) {
481 tm6000_err("unable to allocate %i bytes for transfer buffer %i\n",
482 dev->urb_size, i);
483 return -ENOMEM;
484 }
485 memset(dev->urb_buffer[i], 0, dev->urb_size);
486 }
487
488 return 0;
489}
490
491
492
493
494static int tm6000_free_urb_buffers(struct tm6000_core *dev)
495{
496 int i;
497
498 if (!dev->urb_buffer)
499 return 0;
500
501 for (i = 0; i < TM6000_NUM_URB_BUF; i++) {
502 if (dev->urb_buffer[i]) {
503 usb_free_coherent(dev->udev,
504 dev->urb_size,
505 dev->urb_buffer[i],
506 dev->urb_dma[i]);
507 dev->urb_buffer[i] = NULL;
508 }
509 }
510 kfree(dev->urb_buffer);
511 kfree(dev->urb_dma);
512 dev->urb_buffer = NULL;
513 dev->urb_dma = NULL;
514
515 return 0;
516}
517
518
519
520
521static void tm6000_uninit_isoc(struct tm6000_core *dev)
522{
523 struct urb *urb;
524 int i;
525
526 dev->isoc_ctl.buf = NULL;
527 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
528 urb = dev->isoc_ctl.urb[i];
529 if (urb) {
530 usb_kill_urb(urb);
531 usb_unlink_urb(urb);
532 usb_free_urb(urb);
533 dev->isoc_ctl.urb[i] = NULL;
534 }
535 dev->isoc_ctl.transfer_buffer[i] = NULL;
536 }
537
538 if (!keep_urb)
539 tm6000_free_urb_buffers(dev);
540
541 kfree(dev->isoc_ctl.urb);
542 kfree(dev->isoc_ctl.transfer_buffer);
543
544 dev->isoc_ctl.urb = NULL;
545 dev->isoc_ctl.transfer_buffer = NULL;
546 dev->isoc_ctl.num_bufs = 0;
547}
548
549
550
551
552static int tm6000_prepare_isoc(struct tm6000_core *dev)
553{
554 struct tm6000_dmaqueue *dma_q = &dev->vidq;
555 int i, j, sb_size, pipe, size, max_packets;
556 int num_bufs = TM6000_NUM_URB_BUF;
557 struct urb *urb;
558
559
560 tm6000_uninit_isoc(dev);
561
562 tm6000_ir_int_stop(dev);
563
564 usb_set_interface(dev->udev,
565 dev->isoc_in.bInterfaceNumber,
566 dev->isoc_in.bAlternateSetting);
567
568
569 tm6000_ir_int_start(dev);
570
571 pipe = usb_rcvisocpipe(dev->udev,
572 dev->isoc_in.endp->desc.bEndpointAddress &
573 USB_ENDPOINT_NUMBER_MASK);
574
575 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
576
577 if (size > dev->isoc_in.maxsize)
578 size = dev->isoc_in.maxsize;
579
580 dev->isoc_ctl.max_pkt_size = size;
581
582 max_packets = TM6000_MAX_ISO_PACKETS;
583 sb_size = max_packets * size;
584 dev->urb_size = sb_size;
585
586 dev->isoc_ctl.num_bufs = num_bufs;
587
588 dev->isoc_ctl.urb = kmalloc_array(num_bufs, sizeof(void *),
589 GFP_KERNEL);
590 if (!dev->isoc_ctl.urb)
591 return -ENOMEM;
592
593 dev->isoc_ctl.transfer_buffer = kmalloc_array(num_bufs,
594 sizeof(void *),
595 GFP_KERNEL);
596 if (!dev->isoc_ctl.transfer_buffer) {
597 kfree(dev->isoc_ctl.urb);
598 return -ENOMEM;
599 }
600
601 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets (%d bytes) of %d bytes each to handle %u size\n",
602 max_packets, num_bufs, sb_size,
603 dev->isoc_in.maxsize, size);
604
605
606 if (tm6000_alloc_urb_buffers(dev) < 0) {
607 tm6000_err("cannot allocate memory for urb buffers\n");
608
609
610 tm6000_free_urb_buffers(dev);
611 kfree(dev->isoc_ctl.urb);
612 kfree(dev->isoc_ctl.transfer_buffer);
613 return -ENOMEM;
614 }
615
616
617 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
618 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
619 if (!urb) {
620 tm6000_uninit_isoc(dev);
621 tm6000_free_urb_buffers(dev);
622 return -ENOMEM;
623 }
624 dev->isoc_ctl.urb[i] = urb;
625
626 urb->transfer_dma = dev->urb_dma[i];
627 dev->isoc_ctl.transfer_buffer[i] = dev->urb_buffer[i];
628
629 usb_fill_bulk_urb(urb, dev->udev, pipe,
630 dev->isoc_ctl.transfer_buffer[i], sb_size,
631 tm6000_irq_callback, dma_q);
632 urb->interval = dev->isoc_in.endp->desc.bInterval;
633 urb->number_of_packets = max_packets;
634 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
635
636 for (j = 0; j < max_packets; j++) {
637 urb->iso_frame_desc[j].offset = size * j;
638 urb->iso_frame_desc[j].length = size;
639 }
640 }
641
642 return 0;
643}
644
645static int tm6000_start_thread(struct tm6000_core *dev)
646{
647 struct tm6000_dmaqueue *dma_q = &dev->vidq;
648 int i;
649
650 dma_q->frame = 0;
651 dma_q->ini_jiffies = jiffies;
652
653 init_waitqueue_head(&dma_q->wq);
654
655
656 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
657 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
658 if (rc) {
659 tm6000_err("submit of urb %i failed (error=%i)\n", i,
660 rc);
661 tm6000_uninit_isoc(dev);
662 return rc;
663 }
664 }
665
666 return 0;
667}
668
669
670
671
672
673
674static int
675buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
676{
677 struct tm6000_fh *fh = vq->priv_data;
678
679 *size = fh->fmt->depth * fh->width * fh->height >> 3;
680 if (0 == *count)
681 *count = TM6000_DEF_BUF;
682
683 if (*count < TM6000_MIN_BUF)
684 *count = TM6000_MIN_BUF;
685
686 while (*size * *count > vid_limit * 1024 * 1024)
687 (*count)--;
688
689 return 0;
690}
691
692static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
693{
694 struct tm6000_fh *fh = vq->priv_data;
695 struct tm6000_core *dev = fh->dev;
696 unsigned long flags;
697
698 BUG_ON(in_interrupt());
699
700
701
702
703
704
705
706
707
708
709 spin_lock_irqsave(&dev->slock, flags);
710 if (dev->isoc_ctl.buf == buf)
711 dev->isoc_ctl.buf = NULL;
712 spin_unlock_irqrestore(&dev->slock, flags);
713
714 videobuf_vmalloc_free(&buf->vb);
715 buf->vb.state = VIDEOBUF_NEEDS_INIT;
716}
717
718static int
719buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
720 enum v4l2_field field)
721{
722 struct tm6000_fh *fh = vq->priv_data;
723 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
724 struct tm6000_core *dev = fh->dev;
725 int rc = 0;
726
727 BUG_ON(NULL == fh->fmt);
728
729
730
731
732 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
733 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
734 return -EINVAL;
735
736 if (buf->fmt != fh->fmt ||
737 buf->vb.width != fh->width ||
738 buf->vb.height != fh->height ||
739 buf->vb.field != field) {
740 buf->fmt = fh->fmt;
741 buf->vb.width = fh->width;
742 buf->vb.height = fh->height;
743 buf->vb.field = field;
744 buf->vb.state = VIDEOBUF_NEEDS_INIT;
745 }
746
747 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
748 rc = videobuf_iolock(vq, &buf->vb, NULL);
749 if (rc != 0)
750 goto fail;
751 }
752
753 if (!dev->isoc_ctl.num_bufs) {
754 rc = tm6000_prepare_isoc(dev);
755 if (rc < 0)
756 goto fail;
757
758 rc = tm6000_start_thread(dev);
759 if (rc < 0)
760 goto fail;
761
762 }
763
764 buf->vb.state = VIDEOBUF_PREPARED;
765 return 0;
766
767fail:
768 free_buffer(vq, buf);
769 return rc;
770}
771
772static void
773buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
774{
775 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
776 struct tm6000_fh *fh = vq->priv_data;
777 struct tm6000_core *dev = fh->dev;
778 struct tm6000_dmaqueue *vidq = &dev->vidq;
779
780 buf->vb.state = VIDEOBUF_QUEUED;
781 list_add_tail(&buf->vb.queue, &vidq->active);
782}
783
784static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
785{
786 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
787
788 free_buffer(vq, buf);
789}
790
791static const struct videobuf_queue_ops tm6000_video_qops = {
792 .buf_setup = buffer_setup,
793 .buf_prepare = buffer_prepare,
794 .buf_queue = buffer_queue,
795 .buf_release = buffer_release,
796};
797
798
799
800
801
802
803static bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
804{
805
806 if (dev->resources == fh && dev->is_res_read)
807 return true;
808
809 return false;
810}
811
812static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
813{
814
815 if (dev->resources == fh)
816 return true;
817
818 return false;
819}
820
821static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
822 bool is_res_read)
823{
824
825 if (dev->resources == fh && dev->is_res_read == is_res_read)
826 return true;
827
828
829 if (dev->resources)
830 return false;
831
832
833 dev->resources = fh;
834 dev->is_res_read = is_res_read;
835 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
836 return true;
837}
838
839static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
840{
841
842 if (dev->resources != fh)
843 return;
844
845 dev->resources = NULL;
846 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
847}
848
849
850
851
852
853static int vidioc_querycap(struct file *file, void *priv,
854 struct v4l2_capability *cap)
855{
856 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
857 struct video_device *vdev = video_devdata(file);
858
859 strscpy(cap->driver, "tm6000", sizeof(cap->driver));
860 strscpy(cap->card, "Trident TVMaster TM5600/6000/6010",
861 sizeof(cap->card));
862 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
863 if (dev->tuner_type != TUNER_ABSENT)
864 cap->device_caps |= V4L2_CAP_TUNER;
865 if (vdev->vfl_type == VFL_TYPE_GRABBER)
866 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE |
867 V4L2_CAP_STREAMING |
868 V4L2_CAP_READWRITE;
869 else
870 cap->device_caps |= V4L2_CAP_RADIO;
871 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
872 V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
873
874 return 0;
875}
876
877static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
878 struct v4l2_fmtdesc *f)
879{
880 if (f->index >= ARRAY_SIZE(format))
881 return -EINVAL;
882
883 strscpy(f->description, format[f->index].name, sizeof(f->description));
884 f->pixelformat = format[f->index].fourcc;
885 return 0;
886}
887
888static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
889 struct v4l2_format *f)
890{
891 struct tm6000_fh *fh = priv;
892
893 f->fmt.pix.width = fh->width;
894 f->fmt.pix.height = fh->height;
895 f->fmt.pix.field = fh->vb_vidq.field;
896 f->fmt.pix.pixelformat = fh->fmt->fourcc;
897 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
898 f->fmt.pix.bytesperline =
899 (f->fmt.pix.width * fh->fmt->depth) >> 3;
900 f->fmt.pix.sizeimage =
901 f->fmt.pix.height * f->fmt.pix.bytesperline;
902
903 return 0;
904}
905
906static struct tm6000_fmt *format_by_fourcc(unsigned int fourcc)
907{
908 unsigned int i;
909
910 for (i = 0; i < ARRAY_SIZE(format); i++)
911 if (format[i].fourcc == fourcc)
912 return format+i;
913 return NULL;
914}
915
916static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
917 struct v4l2_format *f)
918{
919 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
920 struct tm6000_fmt *fmt;
921 enum v4l2_field field;
922
923 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
924 if (NULL == fmt) {
925 dprintk(dev, 2, "Fourcc format (0x%08x) invalid.\n",
926 f->fmt.pix.pixelformat);
927 return -EINVAL;
928 }
929
930 field = f->fmt.pix.field;
931
932 field = V4L2_FIELD_INTERLACED;
933
934 tm6000_get_std_res(dev);
935
936 f->fmt.pix.width = dev->width;
937 f->fmt.pix.height = dev->height;
938
939 f->fmt.pix.width &= ~0x01;
940
941 f->fmt.pix.field = field;
942
943 f->fmt.pix.bytesperline =
944 (f->fmt.pix.width * fmt->depth) >> 3;
945 f->fmt.pix.sizeimage =
946 f->fmt.pix.height * f->fmt.pix.bytesperline;
947 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
948
949 return 0;
950}
951
952
953static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
954 struct v4l2_format *f)
955{
956 struct tm6000_fh *fh = priv;
957 struct tm6000_core *dev = fh->dev;
958 int ret = vidioc_try_fmt_vid_cap(file, fh, f);
959 if (ret < 0)
960 return ret;
961
962 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
963 fh->width = f->fmt.pix.width;
964 fh->height = f->fmt.pix.height;
965 fh->vb_vidq.field = f->fmt.pix.field;
966 fh->type = f->type;
967
968 dev->fourcc = f->fmt.pix.pixelformat;
969
970 tm6000_set_fourcc_format(dev);
971
972 return 0;
973}
974
975static int vidioc_reqbufs(struct file *file, void *priv,
976 struct v4l2_requestbuffers *p)
977{
978 struct tm6000_fh *fh = priv;
979
980 return videobuf_reqbufs(&fh->vb_vidq, p);
981}
982
983static int vidioc_querybuf(struct file *file, void *priv,
984 struct v4l2_buffer *p)
985{
986 struct tm6000_fh *fh = priv;
987
988 return videobuf_querybuf(&fh->vb_vidq, p);
989}
990
991static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
992{
993 struct tm6000_fh *fh = priv;
994
995 return videobuf_qbuf(&fh->vb_vidq, p);
996}
997
998static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
999{
1000 struct tm6000_fh *fh = priv;
1001
1002 return videobuf_dqbuf(&fh->vb_vidq, p,
1003 file->f_flags & O_NONBLOCK);
1004}
1005
1006static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1007{
1008 struct tm6000_fh *fh = priv;
1009 struct tm6000_core *dev = fh->dev;
1010
1011 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1012 return -EINVAL;
1013 if (i != fh->type)
1014 return -EINVAL;
1015
1016 if (!res_get(dev, fh, false))
1017 return -EBUSY;
1018 return videobuf_streamon(&fh->vb_vidq);
1019}
1020
1021static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1022{
1023 struct tm6000_fh *fh = priv;
1024 struct tm6000_core *dev = fh->dev;
1025
1026 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1027 return -EINVAL;
1028
1029 if (i != fh->type)
1030 return -EINVAL;
1031
1032 videobuf_streamoff(&fh->vb_vidq);
1033 res_free(dev, fh);
1034
1035 return 0;
1036}
1037
1038static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1039{
1040 int rc = 0;
1041 struct tm6000_fh *fh = priv;
1042 struct tm6000_core *dev = fh->dev;
1043
1044 dev->norm = norm;
1045 rc = tm6000_init_analog_mode(dev);
1046
1047 fh->width = dev->width;
1048 fh->height = dev->height;
1049
1050 if (rc < 0)
1051 return rc;
1052
1053 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->norm);
1054
1055 return 0;
1056}
1057
1058static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1059{
1060 struct tm6000_fh *fh = priv;
1061 struct tm6000_core *dev = fh->dev;
1062
1063 *norm = dev->norm;
1064 return 0;
1065}
1066
1067static const char *iname[] = {
1068 [TM6000_INPUT_TV] = "Television",
1069 [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1070 [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1071 [TM6000_INPUT_SVIDEO] = "S-Video",
1072};
1073
1074static int vidioc_enum_input(struct file *file, void *priv,
1075 struct v4l2_input *i)
1076{
1077 struct tm6000_fh *fh = priv;
1078 struct tm6000_core *dev = fh->dev;
1079 unsigned int n;
1080
1081 n = i->index;
1082 if (n >= 3)
1083 return -EINVAL;
1084
1085 if (!dev->vinput[n].type)
1086 return -EINVAL;
1087
1088 i->index = n;
1089
1090 if (dev->vinput[n].type == TM6000_INPUT_TV)
1091 i->type = V4L2_INPUT_TYPE_TUNER;
1092 else
1093 i->type = V4L2_INPUT_TYPE_CAMERA;
1094
1095 strscpy(i->name, iname[dev->vinput[n].type], sizeof(i->name));
1096
1097 i->std = TM6000_STD;
1098
1099 return 0;
1100}
1101
1102static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1103{
1104 struct tm6000_fh *fh = priv;
1105 struct tm6000_core *dev = fh->dev;
1106
1107 *i = dev->input;
1108
1109 return 0;
1110}
1111
1112static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1113{
1114 struct tm6000_fh *fh = priv;
1115 struct tm6000_core *dev = fh->dev;
1116 int rc = 0;
1117
1118 if (i >= 3)
1119 return -EINVAL;
1120 if (!dev->vinput[i].type)
1121 return -EINVAL;
1122
1123 dev->input = i;
1124
1125 rc = vidioc_s_std(file, priv, dev->norm);
1126
1127 return rc;
1128}
1129
1130
1131
1132static int tm6000_s_ctrl(struct v4l2_ctrl *ctrl)
1133{
1134 struct tm6000_core *dev = container_of(ctrl->handler, struct tm6000_core, ctrl_handler);
1135 u8 val = ctrl->val;
1136
1137 switch (ctrl->id) {
1138 case V4L2_CID_CONTRAST:
1139 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1140 return 0;
1141 case V4L2_CID_BRIGHTNESS:
1142 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1143 return 0;
1144 case V4L2_CID_SATURATION:
1145 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1146 return 0;
1147 case V4L2_CID_HUE:
1148 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1149 return 0;
1150 }
1151 return -EINVAL;
1152}
1153
1154static const struct v4l2_ctrl_ops tm6000_ctrl_ops = {
1155 .s_ctrl = tm6000_s_ctrl,
1156};
1157
1158static int tm6000_radio_s_ctrl(struct v4l2_ctrl *ctrl)
1159{
1160 struct tm6000_core *dev = container_of(ctrl->handler,
1161 struct tm6000_core, radio_ctrl_handler);
1162 u8 val = ctrl->val;
1163
1164 switch (ctrl->id) {
1165 case V4L2_CID_AUDIO_MUTE:
1166 dev->ctl_mute = val;
1167 tm6000_tvaudio_set_mute(dev, val);
1168 return 0;
1169 case V4L2_CID_AUDIO_VOLUME:
1170 dev->ctl_volume = val;
1171 tm6000_set_volume(dev, val);
1172 return 0;
1173 }
1174 return -EINVAL;
1175}
1176
1177static const struct v4l2_ctrl_ops tm6000_radio_ctrl_ops = {
1178 .s_ctrl = tm6000_radio_s_ctrl,
1179};
1180
1181static int vidioc_g_tuner(struct file *file, void *priv,
1182 struct v4l2_tuner *t)
1183{
1184 struct tm6000_fh *fh = priv;
1185 struct tm6000_core *dev = fh->dev;
1186
1187 if (UNSET == dev->tuner_type)
1188 return -ENOTTY;
1189 if (0 != t->index)
1190 return -EINVAL;
1191
1192 strscpy(t->name, "Television", sizeof(t->name));
1193 t->type = V4L2_TUNER_ANALOG_TV;
1194 t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO;
1195 t->rangehigh = 0xffffffffUL;
1196 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1197
1198 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1199
1200 t->audmode = dev->amode;
1201
1202 return 0;
1203}
1204
1205static int vidioc_s_tuner(struct file *file, void *priv,
1206 const struct v4l2_tuner *t)
1207{
1208 struct tm6000_fh *fh = priv;
1209 struct tm6000_core *dev = fh->dev;
1210
1211 if (UNSET == dev->tuner_type)
1212 return -ENOTTY;
1213 if (0 != t->index)
1214 return -EINVAL;
1215
1216 if (t->audmode > V4L2_TUNER_MODE_STEREO)
1217 dev->amode = V4L2_TUNER_MODE_STEREO;
1218 else
1219 dev->amode = t->audmode;
1220 dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1221
1222 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1223
1224 return 0;
1225}
1226
1227static int vidioc_g_frequency(struct file *file, void *priv,
1228 struct v4l2_frequency *f)
1229{
1230 struct tm6000_fh *fh = priv;
1231 struct tm6000_core *dev = fh->dev;
1232
1233 if (UNSET == dev->tuner_type)
1234 return -ENOTTY;
1235 if (f->tuner)
1236 return -EINVAL;
1237
1238 f->frequency = dev->freq;
1239
1240 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1241
1242 return 0;
1243}
1244
1245static int vidioc_s_frequency(struct file *file, void *priv,
1246 const struct v4l2_frequency *f)
1247{
1248 struct tm6000_fh *fh = priv;
1249 struct tm6000_core *dev = fh->dev;
1250
1251 if (UNSET == dev->tuner_type)
1252 return -ENOTTY;
1253 if (f->tuner != 0)
1254 return -EINVAL;
1255
1256 dev->freq = f->frequency;
1257 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1258
1259 return 0;
1260}
1261
1262static int radio_g_tuner(struct file *file, void *priv,
1263 struct v4l2_tuner *t)
1264{
1265 struct tm6000_fh *fh = file->private_data;
1266 struct tm6000_core *dev = fh->dev;
1267
1268 if (0 != t->index)
1269 return -EINVAL;
1270
1271 memset(t, 0, sizeof(*t));
1272 strscpy(t->name, "Radio", sizeof(t->name));
1273 t->type = V4L2_TUNER_RADIO;
1274 t->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
1275 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1276 t->audmode = V4L2_TUNER_MODE_STEREO;
1277
1278 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1279
1280 return 0;
1281}
1282
1283static int radio_s_tuner(struct file *file, void *priv,
1284 const struct v4l2_tuner *t)
1285{
1286 struct tm6000_fh *fh = file->private_data;
1287 struct tm6000_core *dev = fh->dev;
1288
1289 if (0 != t->index)
1290 return -EINVAL;
1291 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1292 return 0;
1293}
1294
1295
1296
1297
1298
1299static int __tm6000_open(struct file *file)
1300{
1301 struct video_device *vdev = video_devdata(file);
1302 struct tm6000_core *dev = video_drvdata(file);
1303 struct tm6000_fh *fh;
1304 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1305 int rc;
1306 int radio = 0;
1307
1308 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1309 video_device_node_name(vdev));
1310
1311 switch (vdev->vfl_type) {
1312 case VFL_TYPE_GRABBER:
1313 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1314 break;
1315 case VFL_TYPE_VBI:
1316 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1317 break;
1318 case VFL_TYPE_RADIO:
1319 radio = 1;
1320 break;
1321 default:
1322 return -EINVAL;
1323 }
1324
1325
1326 dev->users++;
1327
1328 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1329 video_device_node_name(vdev), v4l2_type_names[type],
1330 dev->users);
1331
1332
1333 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1334 if (NULL == fh) {
1335 dev->users--;
1336 return -ENOMEM;
1337 }
1338
1339 v4l2_fh_init(&fh->fh, vdev);
1340 file->private_data = fh;
1341 fh->dev = dev;
1342 fh->radio = radio;
1343 dev->radio = radio;
1344 fh->type = type;
1345 dev->fourcc = format[0].fourcc;
1346
1347 fh->fmt = format_by_fourcc(dev->fourcc);
1348
1349 tm6000_get_std_res(dev);
1350
1351 fh->width = dev->width;
1352 fh->height = dev->height;
1353
1354 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=%p, dev=%p, dev->vidq=%p\n",
1355 fh, dev, &dev->vidq);
1356 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty queued=%d\n",
1357 list_empty(&dev->vidq.queued));
1358 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty active=%d\n",
1359 list_empty(&dev->vidq.active));
1360
1361
1362 rc = tm6000_init_analog_mode(dev);
1363 if (rc < 0) {
1364 v4l2_fh_exit(&fh->fh);
1365 kfree(fh);
1366 return rc;
1367 }
1368
1369 dev->mode = TM6000_MODE_ANALOG;
1370
1371 if (!fh->radio) {
1372 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1373 NULL, &dev->slock,
1374 fh->type,
1375 V4L2_FIELD_INTERLACED,
1376 sizeof(struct tm6000_buffer), fh, &dev->lock);
1377 } else {
1378 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1379 tm6000_set_audio_rinput(dev);
1380 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1381 tm6000_prepare_isoc(dev);
1382 tm6000_start_thread(dev);
1383 }
1384 v4l2_fh_add(&fh->fh);
1385
1386 return 0;
1387}
1388
1389static int tm6000_open(struct file *file)
1390{
1391 struct video_device *vdev = video_devdata(file);
1392 int res;
1393
1394 mutex_lock(vdev->lock);
1395 res = __tm6000_open(file);
1396 mutex_unlock(vdev->lock);
1397 return res;
1398}
1399
1400static ssize_t
1401tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1402{
1403 struct tm6000_fh *fh = file->private_data;
1404 struct tm6000_core *dev = fh->dev;
1405
1406 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1407 int res;
1408
1409 if (!res_get(fh->dev, fh, true))
1410 return -EBUSY;
1411
1412 if (mutex_lock_interruptible(&dev->lock))
1413 return -ERESTARTSYS;
1414 res = videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1415 file->f_flags & O_NONBLOCK);
1416 mutex_unlock(&dev->lock);
1417 return res;
1418 }
1419 return 0;
1420}
1421
1422static __poll_t
1423__tm6000_poll(struct file *file, struct poll_table_struct *wait)
1424{
1425 __poll_t req_events = poll_requested_events(wait);
1426 struct tm6000_fh *fh = file->private_data;
1427 struct tm6000_buffer *buf;
1428 __poll_t res = 0;
1429
1430 if (v4l2_event_pending(&fh->fh))
1431 res = EPOLLPRI;
1432 else if (req_events & EPOLLPRI)
1433 poll_wait(file, &fh->fh.wait, wait);
1434 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1435 return res | EPOLLERR;
1436
1437 if (!!is_res_streaming(fh->dev, fh))
1438 return res | EPOLLERR;
1439
1440 if (!is_res_read(fh->dev, fh)) {
1441
1442 if (list_empty(&fh->vb_vidq.stream))
1443 return res | EPOLLERR;
1444 buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
1445 poll_wait(file, &buf->vb.done, wait);
1446 if (buf->vb.state == VIDEOBUF_DONE ||
1447 buf->vb.state == VIDEOBUF_ERROR)
1448 return res | EPOLLIN | EPOLLRDNORM;
1449 } else if (req_events & (EPOLLIN | EPOLLRDNORM)) {
1450
1451 return res | videobuf_poll_stream(file, &fh->vb_vidq, wait);
1452 }
1453 return res;
1454}
1455
1456static __poll_t tm6000_poll(struct file *file, struct poll_table_struct *wait)
1457{
1458 struct tm6000_fh *fh = file->private_data;
1459 struct tm6000_core *dev = fh->dev;
1460 __poll_t res;
1461
1462 mutex_lock(&dev->lock);
1463 res = __tm6000_poll(file, wait);
1464 mutex_unlock(&dev->lock);
1465 return res;
1466}
1467
1468static int tm6000_release(struct file *file)
1469{
1470 struct tm6000_fh *fh = file->private_data;
1471 struct tm6000_core *dev = fh->dev;
1472 struct video_device *vdev = video_devdata(file);
1473
1474 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1475 video_device_node_name(vdev), dev->users);
1476
1477 mutex_lock(&dev->lock);
1478 dev->users--;
1479
1480 res_free(dev, fh);
1481
1482 if (!dev->users) {
1483 tm6000_uninit_isoc(dev);
1484
1485
1486 tm6000_ir_int_stop(dev);
1487
1488 usb_reset_configuration(dev->udev);
1489
1490 if (dev->int_in.endp)
1491 usb_set_interface(dev->udev,
1492 dev->isoc_in.bInterfaceNumber, 2);
1493 else
1494 usb_set_interface(dev->udev,
1495 dev->isoc_in.bInterfaceNumber, 0);
1496
1497
1498 tm6000_ir_int_start(dev);
1499
1500 if (!fh->radio)
1501 videobuf_mmap_free(&fh->vb_vidq);
1502 }
1503 v4l2_fh_del(&fh->fh);
1504 v4l2_fh_exit(&fh->fh);
1505 kfree(fh);
1506 mutex_unlock(&dev->lock);
1507
1508 return 0;
1509}
1510
1511static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1512{
1513 struct tm6000_fh *fh = file->private_data;
1514 struct tm6000_core *dev = fh->dev;
1515 int res;
1516
1517 if (mutex_lock_interruptible(&dev->lock))
1518 return -ERESTARTSYS;
1519 res = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1520 mutex_unlock(&dev->lock);
1521 return res;
1522}
1523
1524static const struct v4l2_file_operations tm6000_fops = {
1525 .owner = THIS_MODULE,
1526 .open = tm6000_open,
1527 .release = tm6000_release,
1528 .unlocked_ioctl = video_ioctl2,
1529 .read = tm6000_read,
1530 .poll = tm6000_poll,
1531 .mmap = tm6000_mmap,
1532};
1533
1534static const struct v4l2_ioctl_ops video_ioctl_ops = {
1535 .vidioc_querycap = vidioc_querycap,
1536 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1537 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1538 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1539 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1540 .vidioc_s_std = vidioc_s_std,
1541 .vidioc_g_std = vidioc_g_std,
1542 .vidioc_enum_input = vidioc_enum_input,
1543 .vidioc_g_input = vidioc_g_input,
1544 .vidioc_s_input = vidioc_s_input,
1545 .vidioc_g_tuner = vidioc_g_tuner,
1546 .vidioc_s_tuner = vidioc_s_tuner,
1547 .vidioc_g_frequency = vidioc_g_frequency,
1548 .vidioc_s_frequency = vidioc_s_frequency,
1549 .vidioc_streamon = vidioc_streamon,
1550 .vidioc_streamoff = vidioc_streamoff,
1551 .vidioc_reqbufs = vidioc_reqbufs,
1552 .vidioc_querybuf = vidioc_querybuf,
1553 .vidioc_qbuf = vidioc_qbuf,
1554 .vidioc_dqbuf = vidioc_dqbuf,
1555 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1556 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1557};
1558
1559static struct video_device tm6000_template = {
1560 .name = "tm6000",
1561 .fops = &tm6000_fops,
1562 .ioctl_ops = &video_ioctl_ops,
1563 .release = video_device_release_empty,
1564 .tvnorms = TM6000_STD,
1565};
1566
1567static const struct v4l2_file_operations radio_fops = {
1568 .owner = THIS_MODULE,
1569 .open = tm6000_open,
1570 .poll = v4l2_ctrl_poll,
1571 .release = tm6000_release,
1572 .unlocked_ioctl = video_ioctl2,
1573};
1574
1575static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1576 .vidioc_querycap = vidioc_querycap,
1577 .vidioc_g_tuner = radio_g_tuner,
1578 .vidioc_s_tuner = radio_s_tuner,
1579 .vidioc_g_frequency = vidioc_g_frequency,
1580 .vidioc_s_frequency = vidioc_s_frequency,
1581 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1582 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1583};
1584
1585static struct video_device tm6000_radio_template = {
1586 .name = "tm6000",
1587 .fops = &radio_fops,
1588 .ioctl_ops = &radio_ioctl_ops,
1589};
1590
1591
1592
1593
1594
1595
1596static void vdev_init(struct tm6000_core *dev,
1597 struct video_device *vfd,
1598 const struct video_device
1599 *template, const char *type_name)
1600{
1601 *vfd = *template;
1602 vfd->v4l2_dev = &dev->v4l2_dev;
1603 vfd->release = video_device_release_empty;
1604 vfd->lock = &dev->lock;
1605
1606 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1607
1608 video_set_drvdata(vfd, dev);
1609}
1610
1611int tm6000_v4l2_register(struct tm6000_core *dev)
1612{
1613 int ret = 0;
1614
1615 v4l2_ctrl_handler_init(&dev->ctrl_handler, 6);
1616 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 2);
1617 v4l2_ctrl_new_std(&dev->radio_ctrl_handler, &tm6000_radio_ctrl_ops,
1618 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
1619 v4l2_ctrl_new_std(&dev->radio_ctrl_handler, &tm6000_radio_ctrl_ops,
1620 V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
1621 v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
1622 V4L2_CID_BRIGHTNESS, 0, 255, 1, 54);
1623 v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
1624 V4L2_CID_CONTRAST, 0, 255, 1, 119);
1625 v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
1626 V4L2_CID_SATURATION, 0, 255, 1, 112);
1627 v4l2_ctrl_new_std(&dev->ctrl_handler, &tm6000_ctrl_ops,
1628 V4L2_CID_HUE, -128, 127, 1, 0);
1629 v4l2_ctrl_add_handler(&dev->ctrl_handler,
1630 &dev->radio_ctrl_handler, NULL, false);
1631
1632 if (dev->radio_ctrl_handler.error)
1633 ret = dev->radio_ctrl_handler.error;
1634 if (!ret && dev->ctrl_handler.error)
1635 ret = dev->ctrl_handler.error;
1636 if (ret)
1637 goto free_ctrl;
1638
1639 vdev_init(dev, &dev->vfd, &tm6000_template, "video");
1640
1641 dev->vfd.ctrl_handler = &dev->ctrl_handler;
1642
1643
1644 INIT_LIST_HEAD(&dev->vidq.active);
1645 INIT_LIST_HEAD(&dev->vidq.queued);
1646
1647 ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, video_nr);
1648
1649 if (ret < 0) {
1650 printk(KERN_INFO "%s: can't register video device\n",
1651 dev->name);
1652 goto free_ctrl;
1653 }
1654
1655 printk(KERN_INFO "%s: registered device %s\n",
1656 dev->name, video_device_node_name(&dev->vfd));
1657
1658 if (dev->caps.has_radio) {
1659 vdev_init(dev, &dev->radio_dev, &tm6000_radio_template,
1660 "radio");
1661 dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler;
1662 ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
1663 radio_nr);
1664 if (ret < 0) {
1665 printk(KERN_INFO "%s: can't register radio device\n",
1666 dev->name);
1667 goto unreg_video;
1668 }
1669
1670 printk(KERN_INFO "%s: registered device %s\n",
1671 dev->name, video_device_node_name(&dev->radio_dev));
1672 }
1673
1674 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1675 return ret;
1676
1677unreg_video:
1678 video_unregister_device(&dev->vfd);
1679free_ctrl:
1680 v4l2_ctrl_handler_free(&dev->ctrl_handler);
1681 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1682 return ret;
1683}
1684
1685int tm6000_v4l2_unregister(struct tm6000_core *dev)
1686{
1687 video_unregister_device(&dev->vfd);
1688
1689
1690 tm6000_free_urb_buffers(dev);
1691
1692 video_unregister_device(&dev->radio_dev);
1693 return 0;
1694}
1695
1696int tm6000_v4l2_exit(void)
1697{
1698 return 0;
1699}
1700
1701module_param(video_nr, int, 0);
1702MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1703
1704module_param_named(debug, tm6000_debug, int, 0444);
1705MODULE_PARM_DESC(debug, "activates debug info");
1706
1707module_param(vid_limit, int, 0644);
1708MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1709
1710module_param(keep_urb, bool, 0);
1711MODULE_PARM_DESC(keep_urb, "Keep urb buffers allocated even when the device is closed by the user");
1712
