projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
V4L/DVB: tm6000: add vbi message inside the type switch
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / tm6000 / tm6000-video.c
1 /*
2 tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
3
4 Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
5
6 Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
7 - Fixed module load/unload
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation version 2
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
25 #include <linux/fs.h>
26 #include <linux/kernel.h>
27 #include <linux/slab.h>
28 #include <linux/mm.h>
29 #include <linux/ioport.h>
30 #include <linux/init.h>
31 #include <linux/sched.h>
32 #include <linux/random.h>
33 #include <linux/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 40 /* 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
60 /* supported controls */
61 static struct v4l2_queryctrl tm6000_qctrl[] = {
62 {
63 .id = V4L2_CID_BRIGHTNESS,
64 .type = V4L2_CTRL_TYPE_INTEGER,
65 .name = "Brightness",
66 .minimum = 0,
67 .maximum = 255,
68 .step = 1,
69 .default_value = 54,
70 .flags = 0,
71 }, {
72 .id = V4L2_CID_CONTRAST,
73 .type = V4L2_CTRL_TYPE_INTEGER,
74 .name = "Contrast",
75 .minimum = 0,
76 .maximum = 255,
77 .step = 0x1,
78 .default_value = 119,
79 .flags = 0,
80 }, {
81 .id = V4L2_CID_SATURATION,
82 .type = V4L2_CTRL_TYPE_INTEGER,
83 .name = "Saturation",
84 .minimum = 0,
85 .maximum = 255,
86 .step = 0x1,
87 .default_value = 112,
88 .flags = 0,
89 }, {
90 .id = V4L2_CID_HUE,
91 .type = V4L2_CTRL_TYPE_INTEGER,
92 .name = "Hue",
93 .minimum = -128,
94 .maximum = 127,
95 .step = 0x1,
96 .default_value = 0,
97 .flags = 0,
98 }
99 };
100
101 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
102
103 static struct tm6000_fmt format[] = {
104 {
105 .name = "4:2:2, packed, YVY2",
106 .fourcc = V4L2_PIX_FMT_YUYV,
107 .depth = 16,
108 }, {
109 .name = "4:2:2, packed, UYVY",
110 .fourcc = V4L2_PIX_FMT_UYVY,
111 .depth = 16,
112 }, {
113 .name = "A/V + VBI mux packet",
114 .fourcc = V4L2_PIX_FMT_TM6000,
115 .depth = 16,
116 }
117 };
118
119 /* ------------------------------------------------------------------
120 DMA and thread functions
121 ------------------------------------------------------------------*/
122
123 #define norm_maxw(a) 720
124 #define norm_maxh(a) 576
125
126 #define norm_minw(a) norm_maxw(a)
127 #define norm_minh(a) norm_maxh(a)
128
129 /*
130 * video-buf generic routine to get the next available buffer
131 */
132 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
133 struct tm6000_buffer **buf)
134 {
135 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
136 char *outp;
137
138 if (list_empty(&dma_q->active)) {
139 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
140 *buf = NULL;
141 return;
142 }
143
144 *buf = list_entry(dma_q->active.next,
145 struct tm6000_buffer, vb.queue);
146
147 if (!buf)
148 return;
149
150 /* Cleans up buffer - Usefull for testing for frame/URB loss */
151 outp = videobuf_to_vmalloc(&(*buf)->vb);
152 // if (outp)
153 // memset(outp, 0, (*buf)->vb.size);
154
155 return;
156 }
157
158 /*
159 * Announces that a buffer were filled and request the next
160 */
161 static inline void buffer_filled(struct tm6000_core *dev,
162 struct tm6000_dmaqueue *dma_q,
163 struct tm6000_buffer *buf)
164 {
165 /* Advice that buffer was filled */
166 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
167 buf->vb.state = VIDEOBUF_DONE;
168 buf->vb.field_count++;
169 do_gettimeofday(&buf->vb.ts);
170
171 list_del(&buf->vb.queue);
172 wake_up(&buf->vb.done);
173 }
174
175 const char *tm6000_msg_type[] = {
176 "unknown(0)", /* 0 */
177 "video", /* 1 */
178 "audio", /* 2 */
179 "vbi", /* 3 */
180 "pts", /* 4 */
181 "err", /* 5 */
182 "unknown(6)", /* 6 */
183 "unknown(7)", /* 7 */
184 };
185
186 /*
187 * Identify the tm5600/6000 buffer header type and properly handles
188 */
189 static int copy_packet(struct urb *urb, u32 header, u8 **ptr, u8 *endp,
190 u8 *out_p, struct tm6000_buffer **buf)
191 {
192 struct tm6000_dmaqueue *dma_q = urb->context;
193 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
194 u8 c;
195 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
196 int rc = 0;
197 /* FIXME: move to tm6000-isoc */
198 static int last_line = -2, start_line = -2, last_field = -2;
199
200 /* FIXME: this is the hardcoded window size
201 */
202 unsigned int linewidth = (*buf)->vb.width << 1;
203
204 if (!dev->isoc_ctl.cmd) {
205 c = (header >> 24) & 0xff;
206
207 /* split the header fields */
208 size = ((header & 0x7e) << 1);
209
210 if (size > 0)
211 size -= 4;
212
213 block = (header >> 7) & 0xf;
214 field = (header >> 11) & 0x1;
215 line = (header >> 12) & 0x1ff;
216 cmd = (header >> 21) & 0x7;
217
218 /* Validates header fields */
219 if(size > TM6000_URB_MSG_LEN)
220 size = TM6000_URB_MSG_LEN;
221
222 if (cmd == TM6000_URB_MSG_VIDEO) {
223 if ((block+1)*TM6000_URB_MSG_LEN>linewidth)
224 cmd = TM6000_URB_MSG_ERR;
225
226 /* FIXME: Mounts the image as field0+field1
227 * It should, instead, check if the user selected
228 * entrelaced or non-entrelaced mode
229 */
230 pos = ((line << 1) - field - 1) * linewidth +
231 block * TM6000_URB_MSG_LEN;
232
233 /* Don't allow to write out of the buffer */
234 if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size) {
235 dprintk(dev, V4L2_DEBUG_ISOC,
236 "ERR: size=%d, num=%d, line=%d, "
237 "field=%d\n",
238 size, block, line, field);
239
240 cmd = TM6000_URB_MSG_ERR;
241 }
242 } else {
243 pos=0;
244 }
245
246 /* Prints debug info */
247 dprintk(dev, V4L2_DEBUG_ISOC, "size=%d, num=%d, "
248 " line=%d, field=%d\n",
249 size, block, line, field);
250
251 if ((last_line!=line)&&(last_line+1!=line) &&
252 (cmd != TM6000_URB_MSG_ERR) ) {
253 if (cmd != TM6000_URB_MSG_VIDEO) {
254 dprintk(dev, V4L2_DEBUG_ISOC, "cmd=%d, "
255 "size=%d, num=%d, line=%d, field=%d\n",
256 cmd, size, block, line, field);
257 }
258 if (start_line<0)
259 start_line=last_line;
260 /* Prints debug info */
261 dprintk(dev, V4L2_DEBUG_ISOC, "lines= %d-%d, "
262 "field=%d\n",
263 start_line, last_line, field);
264
265 if ((start_line<6 && last_line>200) &&
266 (last_field != field) ) {
267
268 dev->isoc_ctl.nfields++;
269 if (dev->isoc_ctl.nfields>=2) {
270 dev->isoc_ctl.nfields=0;
271
272 /* Announces that a new buffer were filled */
273 buffer_filled (dev, dma_q, *buf);
274 dprintk(dev, V4L2_DEBUG_ISOC,
275 "new buffer filled\n");
276 get_next_buf (dma_q, buf);
277 if (!*buf)
278 return rc;
279 out_p = videobuf_to_vmalloc(&((*buf)->vb));
280 if (!out_p)
281 return rc;
282
283 pos = dev->isoc_ctl.pos = 0;
284 }
285 }
286
287 start_line=line;
288 last_field=field;
289 }
290 if (cmd == TM6000_URB_MSG_VIDEO)
291 last_line = line;
292
293 pktsize = TM6000_URB_MSG_LEN;
294 } else {
295 /* Continue the last copy */
296 cmd = dev->isoc_ctl.cmd;
297 size= dev->isoc_ctl.size;
298 pos = dev->isoc_ctl.pos;
299 pktsize = dev->isoc_ctl.pktsize;
300 }
301
302 cpysize = (endp-(*ptr) > size) ? size : endp - *ptr;
303
304 if (cpysize) {
305 /* handles each different URB message */
306 switch(cmd) {
307 case TM6000_URB_MSG_VIDEO:
308 /* Fills video buffer */
309 memcpy(&out_p[pos], *ptr, cpysize);
310 break;
311 case TM6000_URB_MSG_PTS:
312 break;
313 case TM6000_URB_MSG_AUDIO:
314 /* Need some code to process audio */
315 printk ("%ld: cmd=%s, size=%d\n", jiffies,
316 tm6000_msg_type[cmd],size);
317 break;
318 case TM6000_URB_MSG_VBI:
319 break;
320 default:
321 dprintk (dev, V4L2_DEBUG_ISOC, "cmd=%s, size=%d\n",
322 tm6000_msg_type[cmd],size);
323 }
324 }
325 if (cpysize<size) {
326 /* End of URB packet, but cmd processing is not
327 * complete. Preserve the state for a next packet
328 */
329 dev->isoc_ctl.pos = pos+cpysize;
330 dev->isoc_ctl.size= size-cpysize;
331 dev->isoc_ctl.cmd = cmd;
332 dev->isoc_ctl.pktsize = pktsize-cpysize;
333 (*ptr)+=cpysize;
334 } else {
335 dev->isoc_ctl.cmd = 0;
336 (*ptr)+=pktsize;
337 }
338
339 return rc;
340 }
341
342 static int copy_streams(u8 *data, u8 *out_p, unsigned long len,
343 struct urb *urb, struct tm6000_buffer **buf)
344 {
345 struct tm6000_dmaqueue *dma_q = urb->context;
346 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
347 u8 *ptr=data, *endp=data+len;
348 unsigned long header=0;
349 int rc=0;
350
351 for (ptr=data; ptr<endp;) {
352 if (!dev->isoc_ctl.cmd) {
353 u8 *p=(u8 *)&dev->isoc_ctl.tmp_buf;
354 /* FIXME: This seems very complex
355 * It just recovers up to 3 bytes of the header that
356 * might be at the previous packet
357 */
358 if (dev->isoc_ctl.tmp_buf_len) {
359 while (dev->isoc_ctl.tmp_buf_len) {
360 if ( *(ptr+3-dev->isoc_ctl.tmp_buf_len) == 0x47) {
361 break;
362 }
363 p++;
364 dev->isoc_ctl.tmp_buf_len--;
365 }
366 if (dev->isoc_ctl.tmp_buf_len) {
367 memcpy(&header, p,
368 dev->isoc_ctl.tmp_buf_len);
369 memcpy((u8 *)&header +
370 dev->isoc_ctl.tmp_buf_len,
371 ptr,
372 4 - dev->isoc_ctl.tmp_buf_len);
373 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
374 goto HEADER;
375 }
376 }
377 /* Seek for sync */
378 for (;ptr<endp-3;ptr++) {
379 if (*(ptr+3)==0x47)
380 break;
381 }
382
383 if (ptr+3>=endp) {
384 dev->isoc_ctl.tmp_buf_len=endp-ptr;
385 memcpy (&dev->isoc_ctl.tmp_buf,ptr,
386 dev->isoc_ctl.tmp_buf_len);
387 dev->isoc_ctl.cmd=0;
388 return rc;
389 }
390
391 /* Get message header */
392 header=*(unsigned long *)ptr;
393 ptr+=4;
394 }
395 HEADER:
396 /* Copy or continue last copy */
397 rc=copy_packet(urb,header,&ptr,endp,out_p,buf);
398 if (rc<0) {
399 buf=NULL;
400 printk(KERN_ERR "tm6000: buffer underrun at %ld\n",
401 jiffies);
402 return rc;
403 }
404 if (!*buf)
405 return 0;
406 }
407
408 return 0;
409 }
410 /*
411 * Identify the tm5600/6000 buffer header type and properly handles
412 */
413 static int copy_multiplexed(u8 *ptr, u8 *out_p, unsigned long len,
414 struct urb *urb, struct tm6000_buffer **buf)
415 {
416 struct tm6000_dmaqueue *dma_q = urb->context;
417 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
418 unsigned int pos=dev->isoc_ctl.pos,cpysize;
419 int rc=1;
420
421 while (len>0) {
422 cpysize=min(len,(*buf)->vb.size-pos);
423 //printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
424 memcpy(&out_p[pos], ptr, cpysize);
425 pos+=cpysize;
426 ptr+=cpysize;
427 len-=cpysize;
428 if (pos >= (*buf)->vb.size) {
429 pos=0;
430 /* Announces that a new buffer were filled */
431 buffer_filled (dev, dma_q, *buf);
432 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
433 get_next_buf (dma_q, buf);
434 if (!*buf)
435 break;
436 out_p = videobuf_to_vmalloc(&((*buf)->vb));
437 if (!out_p)
438 return rc;
439 pos = 0;
440 }
441 }
442
443 dev->isoc_ctl.pos=pos;
444 return rc;
445 }
446
447 static void inline print_err_status (struct tm6000_core *dev,
448 int packet, int status)
449 {
450 char *errmsg = "Unknown";
451
452 switch(status) {
453 case -ENOENT:
454 errmsg = "unlinked synchronuously";
455 break;
456 case -ECONNRESET:
457 errmsg = "unlinked asynchronuously";
458 break;
459 case -ENOSR:
460 errmsg = "Buffer error (overrun)";
461 break;
462 case -EPIPE:
463 errmsg = "Stalled (device not responding)";
464 break;
465 case -EOVERFLOW:
466 errmsg = "Babble (bad cable?)";
467 break;
468 case -EPROTO:
469 errmsg = "Bit-stuff error (bad cable?)";
470 break;
471 case -EILSEQ:
472 errmsg = "CRC/Timeout (could be anything)";
473 break;
474 case -ETIME:
475 errmsg = "Device does not respond";
476 break;
477 }
478 if (packet<0) {
479 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
480 status, errmsg);
481 } else {
482 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
483 packet, status, errmsg);
484 }
485 }
486
487
488 /*
489 * Controls the isoc copy of each urb packet
490 */
491 static inline int tm6000_isoc_copy(struct urb *urb)
492 {
493 struct tm6000_dmaqueue *dma_q = urb->context;
494 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
495 struct tm6000_buffer *buf;
496 int i, len=0, rc=1;
497 int size;
498 char *outp = NULL, *p;
499 unsigned long copied;
500
501 get_next_buf(dma_q, &buf);
502 if (buf)
503 outp = videobuf_to_vmalloc(&buf->vb);
504
505 if (!outp)
506 return 0;
507
508 size = buf->vb.size;
509
510 copied=0;
511
512 if (urb->status<0) {
513 print_err_status (dev,-1,urb->status);
514 return 0;
515 }
516
517 for (i = 0; i < urb->number_of_packets; i++) {
518 int status = urb->iso_frame_desc[i].status;
519
520 if (status<0) {
521 print_err_status (dev,i,status);
522 continue;
523 }
524
525 len=urb->iso_frame_desc[i].actual_length;
526
527 // if (len>=TM6000_URB_MSG_LEN) {
528 p=urb->transfer_buffer + urb->iso_frame_desc[i].offset;
529 if (!urb->iso_frame_desc[i].status) {
530 if ((buf->fmt->fourcc)==V4L2_PIX_FMT_TM6000) {
531 rc=copy_multiplexed(p, outp, len, urb, &buf);
532 if (rc<=0)
533 return rc;
534 } else {
535 copy_streams(p, outp, len, urb, &buf);
536 }
537 }
538 copied += len;
539 if (copied >= size || !buf)
540 break;
541 // }
542 }
543 return rc;
544 }
545
546 /* ------------------------------------------------------------------
547 URB control
548 ------------------------------------------------------------------*/
549
550 /*
551 * IRQ callback, called by URB callback
552 */
553 static void tm6000_irq_callback(struct urb *urb)
554 {
555 struct tm6000_dmaqueue *dma_q = urb->context;
556 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
557 int i;
558
559 if (!dev)
560 return;
561
562 spin_lock(&dev->slock);
563 tm6000_isoc_copy(urb);
564 spin_unlock(&dev->slock);
565
566 /* Reset urb buffers */
567 for (i = 0; i < urb->number_of_packets; i++) {
568 urb->iso_frame_desc[i].status = 0;
569 urb->iso_frame_desc[i].actual_length = 0;
570 }
571
572 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
573 if (urb->status)
574 tm6000_err("urb resubmit failed (error=%i)\n",
575 urb->status);
576 }
577
578 /*
579 * Stop and Deallocate URBs
580 */
581 static void tm6000_uninit_isoc(struct tm6000_core *dev)
582 {
583 struct urb *urb;
584 int i;
585
586 dev->isoc_ctl.nfields = -1;
587 dev->isoc_ctl.buf = NULL;
588 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
589 urb=dev->isoc_ctl.urb[i];
590 if (urb) {
591 usb_kill_urb(urb);
592 usb_unlink_urb(urb);
593 if (dev->isoc_ctl.transfer_buffer[i]) {
594 usb_free_coherent(dev->udev,
595 urb->transfer_buffer_length,
596 dev->isoc_ctl.transfer_buffer[i],
597 urb->transfer_dma);
598 }
599 usb_free_urb(urb);
600 dev->isoc_ctl.urb[i] = NULL;
601 }
602 dev->isoc_ctl.transfer_buffer[i] = NULL;
603 }
604
605 kfree (dev->isoc_ctl.urb);
606 kfree (dev->isoc_ctl.transfer_buffer);
607
608 dev->isoc_ctl.urb=NULL;
609 dev->isoc_ctl.transfer_buffer=NULL;
610 dev->isoc_ctl.num_bufs = 0;
611
612 dev->isoc_ctl.num_bufs=0;
613 }
614
615 /*
616 * Allocate URBs and start IRQ
617 */
618 static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize)
619 {
620 struct tm6000_dmaqueue *dma_q = &dev->vidq;
621 int i, j, sb_size, pipe, size, max_packets, num_bufs = 5;
622 struct urb *urb;
623
624 /* De-allocates all pending stuff */
625 tm6000_uninit_isoc(dev);
626
627 usb_set_interface(dev->udev,
628 dev->isoc_in.bInterfaceNumber,
629 dev->isoc_in.bAlternateSetting);
630
631 pipe = usb_rcvisocpipe(dev->udev,
632 dev->isoc_in.endp->desc.bEndpointAddress &
633 USB_ENDPOINT_NUMBER_MASK);
634
635 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
636
637 if (size > dev->isoc_in.maxsize)
638 size = dev->isoc_in.maxsize;
639
640 dev->isoc_ctl.max_pkt_size = size;
641
642 max_packets = ( framesize + size - 1) / size;
643
644 if (max_packets > TM6000_MAX_ISO_PACKETS)
645 max_packets = TM6000_MAX_ISO_PACKETS;
646
647 sb_size = max_packets * size;
648
649 dev->isoc_ctl.num_bufs = num_bufs;
650
651 dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
652 if (!dev->isoc_ctl.urb) {
653 tm6000_err("cannot alloc memory for usb buffers\n");
654 return -ENOMEM;
655 }
656
657 dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
658 GFP_KERNEL);
659 if (!dev->isoc_ctl.transfer_buffer) {
660 tm6000_err("cannot allocate memory for usbtransfer\n");
661 kfree(dev->isoc_ctl.urb);
662 return -ENOMEM;
663 }
664
665 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
666 " (%d bytes) of %d bytes each to handle %u size\n",
667 max_packets, num_bufs, sb_size,
668 dev->isoc_in.maxsize, size);
669
670 /* allocate urbs and transfer buffers */
671 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
672 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
673 if (!urb) {
674 tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
675 tm6000_uninit_isoc(dev);
676 usb_free_urb(urb);
677 return -ENOMEM;
678 }
679 dev->isoc_ctl.urb[i] = urb;
680
681 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
682 sb_size, GFP_KERNEL, &urb->transfer_dma);
683 if (!dev->isoc_ctl.transfer_buffer[i]) {
684 tm6000_err ("unable to allocate %i bytes for transfer"
685 " buffer %i%s\n",
686 sb_size, i,
687 in_interrupt()?" while in int":"");
688 tm6000_uninit_isoc(dev);
689 return -ENOMEM;
690 }
691 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
692
693 usb_fill_bulk_urb(urb, dev->udev, pipe,
694 dev->isoc_ctl.transfer_buffer[i], sb_size,
695 tm6000_irq_callback, dma_q);
696 urb->interval = dev->isoc_in.endp->desc.bInterval;
697 urb->number_of_packets = max_packets;
698 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
699
700 for (j = 0; j < max_packets; j++) {
701 urb->iso_frame_desc[j].offset = size * j;
702 urb->iso_frame_desc[j].length = size;
703 }
704 }
705
706 return 0;
707 }
708
709 static int tm6000_start_thread( struct tm6000_core *dev)
710 {
711 struct tm6000_dmaqueue *dma_q = &dev->vidq;
712 int i;
713
714 dma_q->frame=0;
715 dma_q->ini_jiffies=jiffies;
716
717 init_waitqueue_head(&dma_q->wq);
718
719 /* submit urbs and enables IRQ */
720 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
721 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
722 if (rc) {
723 tm6000_err("submit of urb %i failed (error=%i)\n", i,
724 rc);
725 tm6000_uninit_isoc(dev);
726 return rc;
727 }
728 }
729
730 return 0;
731 }
732
733 /* ------------------------------------------------------------------
734 Videobuf operations
735 ------------------------------------------------------------------*/
736
737 static int
738 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
739 {
740 struct tm6000_fh *fh = vq->priv_data;
741
742 *size = fh->fmt->depth * fh->width * fh->height >> 3;
743 if (0 == *count)
744 *count = TM6000_DEF_BUF;
745
746 if (*count < TM6000_MIN_BUF) {
747 *count=TM6000_MIN_BUF;
748 }
749
750 while (*size * *count > vid_limit * 1024 * 1024)
751 (*count)--;
752
753 return 0;
754 }
755
756 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
757 {
758 struct tm6000_fh *fh = vq->priv_data;
759 struct tm6000_core *dev = fh->dev;
760 unsigned long flags;
761
762 if (in_interrupt())
763 BUG();
764
765 /* We used to wait for the buffer to finish here, but this didn't work
766 because, as we were keeping the state as VIDEOBUF_QUEUED,
767 videobuf_queue_cancel marked it as finished for us.
768 (Also, it could wedge forever if the hardware was misconfigured.)
769
770 This should be safe; by the time we get here, the buffer isn't
771 queued anymore. If we ever start marking the buffers as
772 VIDEOBUF_ACTIVE, it won't be, though.
773 */
774 spin_lock_irqsave(&dev->slock, flags);
775 if (dev->isoc_ctl.buf == buf)
776 dev->isoc_ctl.buf = NULL;
777 spin_unlock_irqrestore(&dev->slock, flags);
778
779 videobuf_vmalloc_free(&buf->vb);
780 buf->vb.state = VIDEOBUF_NEEDS_INIT;
781 }
782
783 static int
784 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
785 enum v4l2_field field)
786 {
787 struct tm6000_fh *fh = vq->priv_data;
788 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
789 struct tm6000_core *dev = fh->dev;
790 int rc = 0, urb_init = 0;
791
792 BUG_ON(NULL == fh->fmt);
793
794
795 /* FIXME: It assumes depth=2 */
796 /* The only currently supported format is 16 bits/pixel */
797 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
798 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
799 return -EINVAL;
800
801 if (buf->fmt != fh->fmt ||
802 buf->vb.width != fh->width ||
803 buf->vb.height != fh->height ||
804 buf->vb.field != field) {
805 buf->fmt = fh->fmt;
806 buf->vb.width = fh->width;
807 buf->vb.height = fh->height;
808 buf->vb.field = field;
809 buf->vb.state = VIDEOBUF_NEEDS_INIT;
810 }
811
812 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
813 if (0 != (rc = videobuf_iolock(vq, &buf->vb, NULL)))
814 goto fail;
815 urb_init = 1;
816 }
817
818 if (!dev->isoc_ctl.num_bufs)
819 urb_init = 1;
820
821 if (urb_init) {
822 rc = tm6000_prepare_isoc(dev, buf->vb.size);
823 if (rc < 0)
824 goto fail;
825
826 rc = tm6000_start_thread(dev);
827 if (rc < 0)
828 goto fail;
829
830 }
831
832 buf->vb.state = VIDEOBUF_PREPARED;
833 return 0;
834
835 fail:
836 free_buffer(vq, buf);
837 return rc;
838 }
839
840 static void
841 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
842 {
843 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
844 struct tm6000_fh *fh = vq->priv_data;
845 struct tm6000_core *dev = fh->dev;
846 struct tm6000_dmaqueue *vidq = &dev->vidq;
847
848 buf->vb.state = VIDEOBUF_QUEUED;
849 list_add_tail(&buf->vb.queue, &vidq->active);
850 }
851
852 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
853 {
854 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
855
856 free_buffer(vq,buf);
857 }
858
859 static struct videobuf_queue_ops tm6000_video_qops = {
860 .buf_setup = buffer_setup,
861 .buf_prepare = buffer_prepare,
862 .buf_queue = buffer_queue,
863 .buf_release = buffer_release,
864 };
865
866 /* ------------------------------------------------------------------
867 IOCTL handling
868 ------------------------------------------------------------------*/
869
870 static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh)
871 {
872 /* is it free? */
873 mutex_lock(&dev->lock);
874 if (dev->resources) {
875 /* no, someone else uses it */
876 mutex_unlock(&dev->lock);
877 return 0;
878 }
879 /* it's free, grab it */
880 dev->resources =1;
881 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
882 mutex_unlock(&dev->lock);
883 return 1;
884 }
885
886 static int res_locked(struct tm6000_core *dev)
887 {
888 return (dev->resources);
889 }
890
891 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
892 {
893 mutex_lock(&dev->lock);
894 dev->resources = 0;
895 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
896 mutex_unlock(&dev->lock);
897 }
898
899 /* ------------------------------------------------------------------
900 IOCTL vidioc handling
901 ------------------------------------------------------------------*/
902 static int vidioc_querycap (struct file *file, void *priv,
903 struct v4l2_capability *cap)
904 {
905 // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
906
907 strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
908 strlcpy(cap->card,"Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
909 // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
910 cap->version = TM6000_VERSION;
911 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
912 V4L2_CAP_STREAMING |
913 V4L2_CAP_TUNER |
914 V4L2_CAP_READWRITE;
915 return 0;
916 }
917
918 static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
919 struct v4l2_fmtdesc *f)
920 {
921 if (unlikely(f->index >= ARRAY_SIZE(format)))
922 return -EINVAL;
923
924 strlcpy(f->description,format[f->index].name,sizeof(f->description));
925 f->pixelformat = format[f->index].fourcc;
926 return 0;
927 }
928
929 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
930 struct v4l2_format *f)
931 {
932 struct tm6000_fh *fh=priv;
933
934 f->fmt.pix.width = fh->width;
935 f->fmt.pix.height = fh->height;
936 f->fmt.pix.field = fh->vb_vidq.field;
937 f->fmt.pix.pixelformat = fh->fmt->fourcc;
938 f->fmt.pix.bytesperline =
939 (f->fmt.pix.width * fh->fmt->depth) >> 3;
940 f->fmt.pix.sizeimage =
941 f->fmt.pix.height * f->fmt.pix.bytesperline;
942
943 return (0);
944 }
945
946 static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc)
947 {
948 unsigned int i;
949
950 for (i = 0; i < ARRAY_SIZE(format); i++)
951 if (format[i].fourcc == fourcc)
952 return format+i;
953 return NULL;
954 }
955
956 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
957 struct v4l2_format *f)
958 {
959 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
960 struct tm6000_fmt *fmt;
961 enum v4l2_field field;
962
963 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
964 if (NULL == fmt) {
965 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
966 " invalid.\n", f->fmt.pix.pixelformat);
967 return -EINVAL;
968 }
969
970 field = f->fmt.pix.field;
971
972 if (field == V4L2_FIELD_ANY) {
973 // field=V4L2_FIELD_INTERLACED;
974 field=V4L2_FIELD_SEQ_TB;
975 } else if (V4L2_FIELD_INTERLACED != field) {
976 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
977 return -EINVAL;
978 }
979
980 tm6000_get_std_res (dev);
981
982 f->fmt.pix.width = dev->width;
983 f->fmt.pix.height = dev->height;
984
985 f->fmt.pix.width &= ~0x01;
986
987 f->fmt.pix.field = field;
988
989 f->fmt.pix.bytesperline =
990 (f->fmt.pix.width * fmt->depth) >> 3;
991 f->fmt.pix.sizeimage =
992 f->fmt.pix.height * f->fmt.pix.bytesperline;
993
994 return 0;
995 }
996
997 /*FIXME: This seems to be generic enough to be at videodev2 */
998 static int vidioc_s_fmt_vid_cap (struct file *file, void *priv,
999 struct v4l2_format *f)
1000 {
1001 struct tm6000_fh *fh=priv;
1002 struct tm6000_core *dev = fh->dev;
1003 int ret = vidioc_try_fmt_vid_cap(file,fh,f);
1004 if (ret < 0)
1005 return (ret);
1006
1007 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1008 fh->width = f->fmt.pix.width;
1009 fh->height = f->fmt.pix.height;
1010 fh->vb_vidq.field = f->fmt.pix.field;
1011 fh->type = f->type;
1012
1013 dev->fourcc = f->fmt.pix.pixelformat;
1014
1015 tm6000_set_fourcc_format(dev);
1016
1017 return (0);
1018 }
1019
1020 static int vidioc_reqbufs (struct file *file, void *priv,
1021 struct v4l2_requestbuffers *p)
1022 {
1023 struct tm6000_fh *fh=priv;
1024
1025 return (videobuf_reqbufs(&fh->vb_vidq, p));
1026 }
1027
1028 static int vidioc_querybuf (struct file *file, void *priv,
1029 struct v4l2_buffer *p)
1030 {
1031 struct tm6000_fh *fh=priv;
1032
1033 return (videobuf_querybuf(&fh->vb_vidq, p));
1034 }
1035
1036 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
1037 {
1038 struct tm6000_fh *fh=priv;
1039
1040 return (videobuf_qbuf(&fh->vb_vidq, p));
1041 }
1042
1043 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
1044 {
1045 struct tm6000_fh *fh=priv;
1046
1047 return (videobuf_dqbuf(&fh->vb_vidq, p,
1048 file->f_flags & O_NONBLOCK));
1049 }
1050
1051 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1052 static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
1053 {
1054 struct tm6000_fh *fh=priv;
1055
1056 return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
1057 }
1058 #endif
1059
1060 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1061 {
1062 struct tm6000_fh *fh=priv;
1063 struct tm6000_core *dev = fh->dev;
1064
1065 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1066 return -EINVAL;
1067 if (i != fh->type)
1068 return -EINVAL;
1069
1070 if (!res_get(dev,fh))
1071 return -EBUSY;
1072 return (videobuf_streamon(&fh->vb_vidq));
1073 }
1074
1075 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1076 {
1077 struct tm6000_fh *fh=priv;
1078 struct tm6000_core *dev = fh->dev;
1079
1080 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1081 return -EINVAL;
1082 if (i != fh->type)
1083 return -EINVAL;
1084
1085 videobuf_streamoff(&fh->vb_vidq);
1086 res_free(dev,fh);
1087
1088 return (0);
1089 }
1090
1091 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
1092 {
1093 int rc=0;
1094 struct tm6000_fh *fh=priv;
1095 struct tm6000_core *dev = fh->dev;
1096
1097 rc=tm6000_set_standard (dev, norm);
1098
1099 fh->width = dev->width;
1100 fh->height = dev->height;
1101
1102 if (rc<0)
1103 return rc;
1104
1105 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1106
1107 return 0;
1108 }
1109
1110 static int vidioc_enum_input (struct file *file, void *priv,
1111 struct v4l2_input *inp)
1112 {
1113 switch (inp->index) {
1114 case TM6000_INPUT_TV:
1115 inp->type = V4L2_INPUT_TYPE_TUNER;
1116 strcpy(inp->name,"Television");
1117 break;
1118 case TM6000_INPUT_COMPOSITE:
1119 inp->type = V4L2_INPUT_TYPE_CAMERA;
1120 strcpy(inp->name,"Composite");
1121 break;
1122 case TM6000_INPUT_SVIDEO:
1123 inp->type = V4L2_INPUT_TYPE_CAMERA;
1124 strcpy(inp->name,"S-Video");
1125 break;
1126 default:
1127 return -EINVAL;
1128 }
1129 inp->std = TM6000_STD;
1130
1131 return 0;
1132 }
1133
1134 static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
1135 {
1136 struct tm6000_fh *fh=priv;
1137 struct tm6000_core *dev = fh->dev;
1138
1139 *i=dev->input;
1140
1141 return 0;
1142 }
1143 static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
1144 {
1145 struct tm6000_fh *fh=priv;
1146 struct tm6000_core *dev = fh->dev;
1147 int rc=0;
1148 char buf[1];
1149
1150 switch (i) {
1151 case TM6000_INPUT_TV:
1152 dev->input=i;
1153 *buf=0;
1154 break;
1155 case TM6000_INPUT_COMPOSITE:
1156 case TM6000_INPUT_SVIDEO:
1157 dev->input=i;
1158 *buf=1;
1159 break;
1160 default:
1161 return -EINVAL;
1162 }
1163 rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR,
1164 REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
1165
1166 if (!rc) {
1167 dev->input=i;
1168 rc=vidioc_s_std (file, priv, &dev->vfd->current_norm);
1169 }
1170
1171 return (rc);
1172 }
1173
1174 /* --- controls ---------------------------------------------- */
1175 static int vidioc_queryctrl (struct file *file, void *priv,
1176 struct v4l2_queryctrl *qc)
1177 {
1178 int i;
1179
1180 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1181 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1182 memcpy(qc, &(tm6000_qctrl[i]),
1183 sizeof(*qc));
1184 return (0);
1185 }
1186
1187 return -EINVAL;
1188 }
1189
1190 static int vidioc_g_ctrl (struct file *file, void *priv,
1191 struct v4l2_control *ctrl)
1192 {
1193 struct tm6000_fh *fh=priv;
1194 struct tm6000_core *dev = fh->dev;
1195 int val;
1196
1197 /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1198 switch (ctrl->id) {
1199 case V4L2_CID_CONTRAST:
1200 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1201 break;
1202 case V4L2_CID_BRIGHTNESS:
1203 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1204 return 0;
1205 case V4L2_CID_SATURATION:
1206 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1207 return 0;
1208 case V4L2_CID_HUE:
1209 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1210 return 0;
1211 default:
1212 return -EINVAL;
1213 }
1214
1215 if (val<0)
1216 return val;
1217
1218 ctrl->value=val;
1219
1220 return 0;
1221 }
1222 static int vidioc_s_ctrl (struct file *file, void *priv,
1223 struct v4l2_control *ctrl)
1224 {
1225 struct tm6000_fh *fh =priv;
1226 struct tm6000_core *dev = fh->dev;
1227 u8 val=ctrl->value;
1228
1229 switch (ctrl->id) {
1230 case V4L2_CID_CONTRAST:
1231 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1232 return 0;
1233 case V4L2_CID_BRIGHTNESS:
1234 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1235 return 0;
1236 case V4L2_CID_SATURATION:
1237 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1238 return 0;
1239 case V4L2_CID_HUE:
1240 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1241 return 0;
1242 }
1243 return -EINVAL;
1244 }
1245
1246 static int vidioc_g_tuner (struct file *file, void *priv,
1247 struct v4l2_tuner *t)
1248 {
1249 struct tm6000_fh *fh =priv;
1250 struct tm6000_core *dev = fh->dev;
1251
1252 if (unlikely(UNSET == dev->tuner_type))
1253 return -EINVAL;
1254 if (0 != t->index)
1255 return -EINVAL;
1256
1257 strcpy(t->name, "Television");
1258 t->type = V4L2_TUNER_ANALOG_TV;
1259 t->capability = V4L2_TUNER_CAP_NORM;
1260 t->rangehigh = 0xffffffffUL;
1261 t->rxsubchans = V4L2_TUNER_SUB_MONO;
1262
1263 return 0;
1264 }
1265
1266 static int vidioc_s_tuner (struct file *file, void *priv,
1267 struct v4l2_tuner *t)
1268 {
1269 struct tm6000_fh *fh =priv;
1270 struct tm6000_core *dev = fh->dev;
1271
1272 if (UNSET == dev->tuner_type)
1273 return -EINVAL;
1274 if (0 != t->index)
1275 return -EINVAL;
1276
1277 return 0;
1278 }
1279
1280 static int vidioc_g_frequency (struct file *file, void *priv,
1281 struct v4l2_frequency *f)
1282 {
1283 struct tm6000_fh *fh =priv;
1284 struct tm6000_core *dev = fh->dev;
1285
1286 if (unlikely(UNSET == dev->tuner_type))
1287 return -EINVAL;
1288
1289 f->type = V4L2_TUNER_ANALOG_TV;
1290 f->frequency = dev->freq;
1291
1292 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1293
1294 return 0;
1295 }
1296
1297 static int vidioc_s_frequency (struct file *file, void *priv,
1298 struct v4l2_frequency *f)
1299 {
1300 struct tm6000_fh *fh =priv;
1301 struct tm6000_core *dev = fh->dev;
1302
1303 if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
1304 return -EINVAL;
1305
1306 if (unlikely(UNSET == dev->tuner_type))
1307 return -EINVAL;
1308 if (unlikely(f->tuner != 0))
1309 return -EINVAL;
1310
1311 // mutex_lock(&dev->lock);
1312 dev->freq = f->frequency;
1313 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1314 // mutex_unlock(&dev->lock);
1315
1316 return 0;
1317 }
1318
1319 /* ------------------------------------------------------------------
1320 File operations for the device
1321 ------------------------------------------------------------------*/
1322
1323 static int tm6000_open(struct file *file)
1324 {
1325 struct video_device *vdev = video_devdata(file);
1326 struct tm6000_core *dev = video_drvdata(file);
1327 struct tm6000_fh *fh;
1328 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1329 int i,rc;
1330
1331 printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1332 video_device_node_name(vdev));
1333
1334 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1335 video_device_node_name(vdev));
1336
1337
1338 /* If more than one user, mutex should be added */
1339 dev->users++;
1340
1341 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1342 video_device_node_name(vdev), v4l2_type_names[type],
1343 dev->users);
1344
1345 /* allocate + initialize per filehandle data */
1346 fh = kzalloc(sizeof(*fh),GFP_KERNEL);
1347 if (NULL == fh) {
1348 dev->users--;
1349 return -ENOMEM;
1350 }
1351
1352 file->private_data = fh;
1353 fh->dev = dev;
1354
1355 fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1356 dev->fourcc = format[0].fourcc;
1357
1358 fh->fmt = format_by_fourcc(dev->fourcc);
1359
1360 tm6000_get_std_res (dev);
1361
1362 fh->width = dev->width;
1363 fh->height = dev->height;
1364
1365 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1366 "dev->vidq=0x%08lx\n",
1367 (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
1368 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1369 "queued=%d\n",list_empty(&dev->vidq.queued));
1370 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1371 "active=%d\n",list_empty(&dev->vidq.active));
1372
1373 /* initialize hardware on analog mode */
1374 if (dev->mode!=TM6000_MODE_ANALOG) {
1375 rc=tm6000_init_analog_mode (dev);
1376 if (rc<0)
1377 return rc;
1378
1379 /* Put all controls at a sane state */
1380 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1381 qctl_regs[i] =tm6000_qctrl[i].default_value;
1382
1383 dev->mode=TM6000_MODE_ANALOG;
1384 }
1385
1386 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1387 NULL, &dev->slock,
1388 fh->type,
1389 V4L2_FIELD_INTERLACED,
1390 sizeof(struct tm6000_buffer),fh);
1391
1392 return 0;
1393 }
1394
1395 static ssize_t
1396 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1397 {
1398 struct tm6000_fh *fh = file->private_data;
1399
1400 if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1401 if (res_locked(fh->dev))
1402 return -EBUSY;
1403
1404 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1405 file->f_flags & O_NONBLOCK);
1406 }
1407 return 0;
1408 }
1409
1410 static unsigned int
1411 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1412 {
1413 struct tm6000_fh *fh = file->private_data;
1414 struct tm6000_buffer *buf;
1415
1416 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1417 return POLLERR;
1418
1419 if (res_get(fh->dev,fh)) {
1420 /* streaming capture */
1421 if (list_empty(&fh->vb_vidq.stream))
1422 return POLLERR;
1423 buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
1424 } else {
1425 /* read() capture */
1426 return videobuf_poll_stream(file, &fh->vb_vidq,
1427 wait);
1428 }
1429 poll_wait(file, &buf->vb.done, wait);
1430 if (buf->vb.state == VIDEOBUF_DONE ||
1431 buf->vb.state == VIDEOBUF_ERROR)
1432 return POLLIN|POLLRDNORM;
1433 return 0;
1434 }
1435
1436 static int tm6000_release(struct file *file)
1437 {
1438 struct tm6000_fh *fh = file->private_data;
1439 struct tm6000_core *dev = fh->dev;
1440 struct video_device *vdev = video_devdata(file);
1441
1442 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1443 video_device_node_name(vdev), dev->users);
1444
1445 dev->users--;
1446
1447 if (!dev->users) {
1448 tm6000_uninit_isoc(dev);
1449 videobuf_mmap_free(&fh->vb_vidq);
1450 }
1451
1452 kfree (fh);
1453
1454 return 0;
1455 }
1456
1457 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1458 {
1459 struct tm6000_fh *fh = file->private_data;
1460 int ret;
1461
1462 ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
1463
1464 return ret;
1465 }
1466
1467 static struct v4l2_file_operations tm6000_fops = {
1468 .owner = THIS_MODULE,
1469 .open = tm6000_open,
1470 .release = tm6000_release,
1471 .ioctl = video_ioctl2, /* V4L2 ioctl handler */
1472 .read = tm6000_read,
1473 .poll = tm6000_poll,
1474 .mmap = tm6000_mmap,
1475 };
1476
1477 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1478 .vidioc_querycap = vidioc_querycap,
1479 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1480 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1481 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1482 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1483 .vidioc_s_std = vidioc_s_std,
1484 .vidioc_enum_input = vidioc_enum_input,
1485 .vidioc_g_input = vidioc_g_input,
1486 .vidioc_s_input = vidioc_s_input,
1487 .vidioc_queryctrl = vidioc_queryctrl,
1488 .vidioc_g_ctrl = vidioc_g_ctrl,
1489 .vidioc_s_ctrl = vidioc_s_ctrl,
1490 .vidioc_g_tuner = vidioc_g_tuner,
1491 .vidioc_s_tuner = vidioc_s_tuner,
1492 .vidioc_g_frequency = vidioc_g_frequency,
1493 .vidioc_s_frequency = vidioc_s_frequency,
1494 .vidioc_streamon = vidioc_streamon,
1495 .vidioc_streamoff = vidioc_streamoff,
1496 .vidioc_reqbufs = vidioc_reqbufs,
1497 .vidioc_querybuf = vidioc_querybuf,
1498 .vidioc_qbuf = vidioc_qbuf,
1499 .vidioc_dqbuf = vidioc_dqbuf,
1500 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1501 .vidiocgmbuf = vidiocgmbuf,
1502 #endif
1503 };
1504
1505 static struct video_device tm6000_template = {
1506 .name = "tm6000",
1507 .fops = &tm6000_fops,
1508 .ioctl_ops = &video_ioctl_ops,
1509 .release = video_device_release,
1510 .tvnorms = TM6000_STD,
1511 .current_norm = V4L2_STD_NTSC_M,
1512 };
1513
1514 /* -----------------------------------------------------------------
1515 Initialization and module stuff
1516 ------------------------------------------------------------------*/
1517
1518 int tm6000_v4l2_register(struct tm6000_core *dev)
1519 {
1520 int ret = -1;
1521 struct video_device *vfd;
1522
1523 vfd = video_device_alloc();
1524 if(!vfd) {
1525 return -ENOMEM;
1526 }
1527 dev->vfd = vfd;
1528
1529 /* init video dma queues */
1530 INIT_LIST_HEAD(&dev->vidq.active);
1531 INIT_LIST_HEAD(&dev->vidq.queued);
1532
1533 memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd)));
1534 dev->vfd->debug=tm6000_debug;
1535 vfd->v4l2_dev = &dev->v4l2_dev;
1536 video_set_drvdata(vfd, dev);
1537
1538 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1539 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1540 return ret;
1541 }
1542
1543 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1544 {
1545 video_unregister_device(dev->vfd);
1546
1547 return 0;
1548 }
1549
1550 int tm6000_v4l2_exit(void)
1551 {
1552 return 0;
1553 }
1554
1555 module_param(video_nr, int, 0);
1556 MODULE_PARM_DESC(video_nr,"Allow changing video device number");
1557
1558 module_param_named (debug, tm6000_debug, int, 0444);
1559 MODULE_PARM_DESC(debug,"activates debug info");
1560
1561 module_param(vid_limit,int,0644);
1562 MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
1563
kernel source for telekom puls (alcatel/mediatek)