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V4L/DVB (12781): tm6000: Start adding support for GPIO device-specific parameters
[net-next-2.6.git] / drivers / staging / tm6000 / tm6000-video.c
CommitLineData
9701dc94
MCC		 1/*
2 tm6000-video.c - driver for TM5600/TM6000 USB video capture devices
3
4 Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
5
7c3f53ec
ML		 6 Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
7 - Fixed module load/unload
8
9701dc94
MCC		 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#ifdef CONFIG_VIDEO_V4L1_COMPAT
37#include <linux/videodev.h>
38#endif
39#include <linux/interrupt.h>
40#include <linux/kthread.h>
41#include <linux/highmem.h>
42#include <linux/freezer.h>
43
44#include "tm6000-regs.h"
45#include "tm6000.h"
46
47#define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
48
49/* Declare static vars that will be used as parameters */
50static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
51static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
52
53unsigned long tm6000_devused;
54
55/* Debug level */
56int tm6000_debug;
57
58/* supported controls */
59static struct v4l2_queryctrl tm6000_qctrl[] = {
60 {
61 .id = V4L2_CID_BRIGHTNESS,
62 .type = V4L2_CTRL_TYPE_INTEGER,
63 .name = "Brightness",
64 .minimum = 0,
65 .maximum = 255,
66 .step = 1,
67 .default_value = 54,
68 .flags = 0,
69 }, {
70 .id = V4L2_CID_CONTRAST,
71 .type = V4L2_CTRL_TYPE_INTEGER,
72 .name = "Contrast",
73 .minimum = 0,
74 .maximum = 255,
75 .step = 0x1,
76 .default_value = 119,
77 .flags = 0,
78 }, {
79 .id = V4L2_CID_SATURATION,
80 .type = V4L2_CTRL_TYPE_INTEGER,
81 .name = "Saturation",
82 .minimum = 0,
83 .maximum = 255,
84 .step = 0x1,
85 .default_value = 112,
86 .flags = 0,
87 }, {
88 .id = V4L2_CID_HUE,
89 .type = V4L2_CTRL_TYPE_INTEGER,
90 .name = "Hue",
91 .minimum = -128,
92 .maximum = 127,
93 .step = 0x1,
94 .default_value = 0, //4 ?
95 .flags = 0,
96 }
97};
98
99static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
100
101static struct tm6000_fmt format[] = {
102 {
103 .name = "4:2:2, packed, YVY2",
104 .fourcc = V4L2_PIX_FMT_YUYV,
105 .depth = 16,
106 },{
107 .name = "4:2:2, packed, UYVY",
108 .fourcc = V4L2_PIX_FMT_UYVY,
109 .depth = 16,
110 },{
111 .name = "A/V + VBI mux packet",
112 .fourcc = V4L2_PIX_FMT_TM6000,
113 .depth = 16,
114 }
115};
116
117static LIST_HEAD(tm6000_corelist);
118
119/* ------------------------------------------------------------------
120 DMA and thread functions
121 ------------------------------------------------------------------*/
122
123#define norm_maxw(a) 720
124#define norm_maxh(a) 480
125
126//#define norm_minw(a) norm_maxw(a)
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 */
133static int inline 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
138 if (list_empty(&dma_q->active)) {
139 dprintk(dev, V4L2_DEBUG_QUEUE,"No active queue to serve\n");
140 return 0;
141 }
142
143 *buf = list_entry(dma_q->active.next,
144 struct tm6000_buffer, vb.queue);
145
146 /* Nobody is waiting something to be done, just return */
147 if (!waitqueue_active(&(*buf)->vb.done)) {
148 mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
149 return -1;
150 }
151
152 return 1;
153}
154
155/*
156 * Announces that a buffer were filled and request the next
157 */
158static void inline buffer_filled (struct tm6000_core *dev,
159 struct tm6000_buffer *buf)
160{
161 /* Advice that buffer was filled */
162 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] wakeup\n",buf,buf->vb.i);
163 buf->vb.state = STATE_DONE;
164 buf->vb.field_count++;
165 do_gettimeofday(&buf->vb.ts);
166
167 list_del(&buf->vb.queue);
168 wake_up(&buf->vb.done);
169}
170
171/*
172 * Macro to allow copying data into the proper memory type
173 */
174
175#define bufcpy(buf,out_ptr,in_ptr,size) \
176 { \
177 if (__copy_to_user(out_ptr,in_ptr,size)!=0) \
178 tm6000_err("copy_to_user failed.\n"); \
179 }
180
181/*
182 * Identify the tm5600/6000 buffer header type and properly handles
183 */
184static int copy_streams(u8 *data, u8 *out_p, unsigned long len,
185 struct urb *urb, struct tm6000_buffer **buf)
186{
187 struct tm6000_dmaqueue *dma_q = urb->context;
188 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
189 u8 *ptr=data, *endp=data+len;
190 u8 c;
191 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos=0;
192 unsigned long header;
193 int rc=0;
194
195 /* FIXME: this is the hardcoded window size
196 */
197 unsigned int linesize=720*2;
198
199//static int last_line=-2;
200
201 for (ptr=data; ptr<endp;) {
202 if (!dev->isoc_ctl.cmd) {
203 /* Seek for sync */
204 for (ptr+=3;ptr<endp;ptr++) {
205 if (*ptr==0x47) {
206 ptr-=3;
207 break;
208 }
209 }
210 if (ptr>=endp)
211 return rc;
212
213 /* Get message header */
214 header=*(unsigned long *)ptr;
215 ptr+=4;
216 c=(header>>24) & 0xff;
217
218 /* split the header fields */
219 size = (((header & 0x7e)<<1) -1) *4;
220 block = (header>>7) & 0xf;
221 field = (header>>11) & 0x1;
222 line = (header>>12) & 0x1ff;
223 cmd = (header>>21) & 0x7;
224
225 /* FIXME: Maximum possible line is 511.
226 * This doesn't seem to be enough for PAL standards
227 */
228
229 /* Validates header fields */
230 if(size>TM6000_URB_MSG_LEN)
231 size=TM6000_URB_MSG_LEN;
232 if(block>=8)
233 cmd = TM6000_URB_MSG_ERR;
234
235 /* FIXME: Mounts the image as field0+field1
236 * It should, instead, check if the user selected
237 * entrelaced or non-entrelaced mode
238 */
239 pos=((line<<1)+field)*linesize+
240 block*TM6000_URB_MSG_LEN;
241
242
243
244 /* Don't allow to write out of the buffer */
245 if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size)
246 cmd = TM6000_URB_MSG_ERR;
247
248 /* Prints debug info */
249 dprintk(dev, V4L2_DEBUG_ISOC, "size=%d, num=%d, "
250 " line=%d, field=%d\n",
251 size, block, line, field);
252
253 dev->isoc_ctl.cmd = cmd;
254 dev->isoc_ctl.size = size;
255 dev->isoc_ctl.pos = pos;
256 dev->isoc_ctl.pktsize = pktsize = TM6000_URB_MSG_LEN;
257 } else {
258 cmd = dev->isoc_ctl.cmd;
259 size= dev->isoc_ctl.size;
260 pos = dev->isoc_ctl.pos;
261 pktsize = dev->isoc_ctl.pktsize;
262 }
263 cpysize=(endp-ptr>size)?size:endp-ptr;
264
265 if (cpysize) {
266 /* handles each different URB message */
267 switch(cmd) {
268 case TM6000_URB_MSG_VIDEO:
269 /* Fills video buffer */
270 bufcpy(*buf,&out_p[pos],ptr,cpysize);
271 break;
272 }
273 }
274 if (cpysize<size) {
275 /* End of URB packet, but cmd processing is not
276 * complete. Preserve the state for a next packet
277 */
278 dev->isoc_ctl.pos = pos+cpysize;
279 dev->isoc_ctl.size= size-cpysize;
280 dev->isoc_ctl.cmd = cmd;
281 dev->isoc_ctl.pktsize = pktsize-cpysize;
282 ptr+=cpysize;
283 } else {
284 dev->isoc_ctl.cmd = 0;
285 ptr+=pktsize;
286 }
287 }
288
289 return rc;
290}
291/*
292 * Identify the tm5600/6000 buffer header type and properly handles
293 */
294static int copy_multiplexed(u8 *ptr, u8 *out_p, unsigned long len,
295 struct urb *urb, struct tm6000_buffer **buf)
296{
297 struct tm6000_dmaqueue *dma_q = urb->context;
298 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
299 unsigned int pos=dev->isoc_ctl.pos,cpysize;
300 int rc=1;
301
302 while (len>0) {
303 cpysize=min(len,(*buf)->vb.size-pos);
304//printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
305 bufcpy(*buf,&out_p[pos],ptr,cpysize);
306 pos+=cpysize;
307 ptr+=cpysize;
308 len-=cpysize;
309 if (pos >= (*buf)->vb.size) {
310 pos=0;
311 /* Announces that a new buffer were filled */
312 buffer_filled (dev, *buf);
313 dprintk(dev, V4L2_DEBUG_QUEUE, "new buffer filled\n");
314
315 rc=get_next_buf (dma_q, buf);
316 if (rc<=0) {
317 *buf=NULL;
318 printk(KERN_ERR "tm6000: buffer underrun\n");
319 break;
320 }
321 }
322 }
323
324 dev->isoc_ctl.pos=pos;
325 return rc;
326}
327
328/*
329 * Controls the isoc copy of each urb packet
330 */
331static inline int tm6000_isoc_copy(struct urb *urb, struct tm6000_buffer **buf)
332{
333 struct tm6000_dmaqueue *dma_q = urb->context;
334 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
335 void *outp=videobuf_to_vmalloc (&((*buf)->vb));
336 int i, len=0, rc=1;
337 int size=(*buf)->vb.size;
338 char *p;
339 unsigned long copied;
340
341 copied=0;
342
343
344 for (i = 0; i < urb->number_of_packets; i++) {
345 int status = urb->iso_frame_desc[i].status;
346 char *errmsg = "Unknown";
347
348 switch(status) {
349 case -ENOENT:
350 errmsg = "unlinked synchronuously";
351 break;
352 case -ECONNRESET:
353 errmsg = "unlinked asynchronuously";
354 break;
355 case -ENOSR:
356 errmsg = "Buffer error (overrun)";
357 break;
358 case -EPIPE:
359 errmsg = "Stalled (device not responding)";
360 break;
361 case -EOVERFLOW:
362 errmsg = "Babble (bad cable?)";
363 break;
364 case -EPROTO:
365 errmsg = "Bit-stuff error (bad cable?)";
366 break;
367 case -EILSEQ:
368 errmsg = "CRC/Timeout (could be anything)";
369 break;
370 case -ETIME:
371 errmsg = "Device does not respond";
372 break;
373 }
374 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
375 status, errmsg);
376
377 if (status<0)
378 continue;
379
380 len=urb->iso_frame_desc[i].actual_length;
381
382 if (len>=TM6000_URB_MSG_LEN) {
383 p=urb->transfer_buffer + urb->iso_frame_desc[i].offset;
384 if (!urb->iso_frame_desc[i].status) {
385 if (((*buf)->fmt->fourcc)==V4L2_PIX_FMT_TM6000) {
386 rc=copy_multiplexed(p,outp,len,urb,buf);
387 if (rc<=0)
388 return rc;
389 } else {
390 rc=copy_streams(p,outp,len,urb,buf);
391 }
392 }
393 copied += len;
394 if (copied>=size)
395 break;
396 }
397 }
398
399 if (((*buf)->fmt->fourcc)!=V4L2_PIX_FMT_TM6000) {
400 buffer_filled (dev, *buf);
401 dprintk(dev, V4L2_DEBUG_QUEUE, "new buffer filled\n");
402 }
403
404 return rc;
405}
406
407/* ------------------------------------------------------------------
408 URB control
409 ------------------------------------------------------------------*/
410
411/*
412 * IRQ callback, called by URB callback
413 */
414static void tm6000_irq_callback(struct urb *urb)
415{
416 struct tm6000_buffer *buf;
417 struct tm6000_dmaqueue *dma_q = urb->context;
418 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
419 int rc,i;
420 unsigned long flags;
421
422 spin_lock_irqsave(&dev->slock,flags);
423
424 rc=get_next_buf (dma_q, &buf);
425 if (rc<=0)
426 goto ret;
427
428 /* Copy data from URB */
429 rc=tm6000_isoc_copy(urb, &buf);
430
431ret:
432 /* Reset urb buffers */
433 for (i = 0; i < urb->number_of_packets; i++) {
434 urb->iso_frame_desc[i].status = 0;
435 urb->iso_frame_desc[i].actual_length = 0;
436 }
437 urb->status = 0;
438
439 if ((urb->status = usb_submit_urb(urb, GFP_ATOMIC))) {
440 tm6000_err("urb resubmit failed (error=%i)\n",
441 urb->status);
442 }
443
444 if (rc>=0) {
445 if (!rc) {
446 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
447 del_timer(&dma_q->timeout);
448 } else {
449 /* Data filled, reset watchdog */
450 mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
451 }
452 }
453 spin_unlock_irqrestore(&dev->slock,flags);
454}
455
456/*
457 * Stop and Deallocate URBs
458 */
459static void tm6000_uninit_isoc(struct tm6000_core *dev)
460{
461 struct urb *urb;
462 int i;
463
464 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
465 urb=dev->isoc_ctl.urb[i];
466 if (urb) {
467 usb_kill_urb(urb);
468 usb_unlink_urb(urb);
469 if (dev->isoc_ctl.transfer_buffer[i]) {
470 usb_buffer_free(dev->udev,
471 urb->transfer_buffer_length,
472 dev->isoc_ctl.transfer_buffer[i],
473 urb->transfer_dma);
474 }
475 usb_free_urb(urb);
476 dev->isoc_ctl.urb[i] = NULL;
477 }
478 dev->isoc_ctl.transfer_buffer[i] = NULL;
479 }
480
481 kfree (dev->isoc_ctl.urb);
482 kfree (dev->isoc_ctl.transfer_buffer);
483 dev->isoc_ctl.urb=NULL;
484 dev->isoc_ctl.transfer_buffer=NULL;
485
486 dev->isoc_ctl.num_bufs=0;
487}
488
489/*
490 * Stop video thread - FIXME: Can be easily removed
491 */
492static void tm6000_stop_thread(struct tm6000_dmaqueue *dma_q)
493{
494 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
495
496 tm6000_uninit_isoc(dev);
497}
498
499
500/*
501 * Allocate URBs and start IRQ
502 */
503static int tm6000_prepare_isoc(struct tm6000_core *dev,
504 int max_packets, int num_bufs)
505{
506 struct tm6000_dmaqueue *dma_q = &dev->vidq;
507 int i;
508 int sb_size, pipe;
509 struct urb *urb;
510 int j, k;
511
512 /* De-allocates all pending stuff */
513 tm6000_uninit_isoc(dev);
514
515 dev->isoc_ctl.num_bufs=num_bufs;
516
517 dev->isoc_ctl.urb=kmalloc(sizeof(void *)*num_bufs,
518 GFP_KERNEL);
519 if (!dev->isoc_ctl.urb) {
520 tm6000_err("cannot alloc memory for usb buffers\n");
521 return -ENOMEM;
522 }
523
524 dev->isoc_ctl.transfer_buffer=kmalloc(sizeof(void *)*num_bufs,
525 GFP_KERNEL);
526 if (!dev->isoc_ctl.urb) {
527 tm6000_err("cannot allocate memory for usbtransfer\n");
528 kfree(dev->isoc_ctl.urb);
529 return -ENOMEM;
530 }
531
532 dev->isoc_ctl.max_pkt_size=dev->max_isoc_in;
533
534 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
535
536
537 /* allocate urbs and transfer buffers */
538 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
539 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
540 if (!urb) {
541 tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
542 tm6000_uninit_isoc(dev);
543 return -ENOMEM;
544 }
545 dev->isoc_ctl.urb[i] = urb;
546
547 dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev,
548 sb_size, GFP_KERNEL,
549 &dev->isoc_ctl.urb[i]->transfer_dma);
550 if (!dev->isoc_ctl.transfer_buffer[i]) {
551 tm6000_err ("unable to allocate %i bytes for transfer"
552 " buffer %i\n", sb_size, i);
553 tm6000_uninit_isoc(dev);
554 return -ENOMEM;
555 }
556 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
557
558 pipe=usb_rcvisocpipe(dev->udev,
559 dev->isoc_in->desc.bEndpointAddress &
560 USB_ENDPOINT_NUMBER_MASK);
561 usb_fill_int_urb(urb, dev->udev, pipe,
562 dev->isoc_ctl.transfer_buffer[i],sb_size,
563 tm6000_irq_callback, dma_q,
564 dev->isoc_in->desc.bInterval);
565
566 urb->number_of_packets = max_packets;
567 urb->transfer_flags = URB_ISO_ASAP;
568
569 k = 0;
570 for (j = 0; j < max_packets; j++) {
571 urb->iso_frame_desc[j].offset = k;
572 urb->iso_frame_desc[j].length =
573 dev->isoc_ctl.max_pkt_size;
574 k += dev->isoc_ctl.max_pkt_size;
575 }
576 }
577
578 return 0;
579}
580
581static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q,
582 struct tm6000_buffer *buf)
583{
584 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
585 int i,rc;
586
587 dma_q->frame=0;
588 dma_q->ini_jiffies=jiffies;
589
590 init_waitqueue_head(&dma_q->wq);
591
592 /* submit urbs and enables IRQ */
593 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
2cd4fd1e 594 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
9701dc94
MCC		 595 if (rc) {
596 tm6000_err("submit of urb %i failed (error=%i)\n", i,
597 rc);
598 tm6000_uninit_isoc(dev);
599 return rc;
600 }
601 }
602
603 if (rc<0)
604 return rc;
605
606 return 0;
607}
608
609static int restart_video_queue(struct tm6000_dmaqueue *dma_q)
610{
611 struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
612
613 struct tm6000_buffer *buf, *prev;
614 struct list_head *item;
615
616 dprintk(dev, V4L2_DEBUG_QUEUE, "%s dma_q=0x%08lx\n",
617 __FUNCTION__,(unsigned long)dma_q);
618
619 if (!list_empty(&dma_q->active)) {
620 buf = list_entry(dma_q->active.next, struct tm6000_buffer, vb.queue);
621 dprintk(dev, V4L2_DEBUG_QUEUE,
622 "restart_queue [%p/%d]: restart dma\n", buf, buf->vb.i);
623
624 dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n");
625 tm6000_stop_thread(dma_q);
626 tm6000_start_thread(dma_q, buf);
627
628 /* cancel all outstanding capture / vbi requests */
629 list_for_each(item,&dma_q->active) {
630 buf = list_entry(item, struct tm6000_buffer, vb.queue);
631
632 list_del(&buf->vb.queue);
633 buf->vb.state = STATE_ERROR;
634 wake_up(&buf->vb.done);
635 }
636 mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
637
638 return 0;
639 }
640
641 prev = NULL;
642 for (;;) {
643 if (list_empty(&dma_q->queued))
644 return 0;
645 buf = list_entry(dma_q->queued.next, struct tm6000_buffer, vb.queue);
646 if (NULL == prev) {
647 list_del(&buf->vb.queue);
648 list_add_tail(&buf->vb.queue,&dma_q->active);
649
650 dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n");
651 tm6000_stop_thread(dma_q);
652 tm6000_start_thread(dma_q, buf);
653
654 buf->vb.state = STATE_ACTIVE;
655 mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
656 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -"
657 " first active\n", buf, buf->vb.i);
658
659 } else if (prev->vb.width == buf->vb.width &&
660 prev->vb.height == buf->vb.height &&
661 prev->fmt == buf->fmt) {
662 list_del(&buf->vb.queue);
663 list_add_tail(&buf->vb.queue,&dma_q->active);
664 buf->vb.state = STATE_ACTIVE;
665 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -"
666 " move to active\n",buf,buf->vb.i);
667 } else {
668 return 0;
669 }
670 prev = buf;
671 }
672}
673
674static void tm6000_vid_timeout(unsigned long data)
675{
676 struct tm6000_core *dev = (struct tm6000_core*)data;
677 struct tm6000_dmaqueue *vidq = &dev->vidq;
678 struct tm6000_buffer *buf;
679 unsigned long flags;
680
681 spin_lock_irqsave(&dev->slock,flags);
682 while (!list_empty(&vidq->active)) {
683 buf = list_entry(vidq->active.next, struct tm6000_buffer,
684 vb.queue);
685 list_del(&buf->vb.queue);
686 buf->vb.state = STATE_ERROR;
687 wake_up(&buf->vb.done);
688 dprintk(dev, V4L2_DEBUG_QUEUE, "tm6000/0: [%p/%d] timeout\n",
689 buf, buf->vb.i);
690 }
691
692 restart_video_queue(vidq);
693 spin_unlock_irqrestore(&dev->slock,flags);
694}
695
696/* ------------------------------------------------------------------
697 Videobuf operations
698 ------------------------------------------------------------------*/
699static int
700buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
701{
702 struct tm6000_fh *fh = vq->priv_data;
703
704 *size = fh->fmt->depth * fh->width * fh->height >> 3;
705 if (0 == *count)
706 *count = 32;
707 while (*size * *count > vid_limit * 1024 * 1024)
708 (*count)--;
709 return 0;
710}
711
712static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
713{
714 if (in_interrupt())
715 BUG();
716
717 videobuf_waiton(&buf->vb,0,0);
718 videobuf_vmalloc_free(&buf->vb);
719 buf->vb.state = STATE_NEEDS_INIT;
720}
721
722static int
723buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
724 enum v4l2_field field)
725{
726 struct tm6000_fh *fh = vq->priv_data;
727 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
728 struct tm6000_core *dev = fh->dev;
729 int rc=0, urbsize, urb_init=0;
730
731 BUG_ON(NULL == fh->fmt);
732
733 if (fh->width < norm_minw(core) || fh->width > norm_maxw(core) ||
734 fh->height < norm_minh(core) || fh->height > norm_maxh(core)) {
735 dprintk(dev, V4L2_DEBUG_QUEUE, "Window size (%dx%d) is out of "
736 "supported range\n", fh->width, fh->height);
737 dprintk(dev, V4L2_DEBUG_QUEUE, "Valid range is from (%dx%d) to "
738 "(%dx%d)\n", norm_minw(core), norm_minh(core),
739 norm_maxw(core),norm_maxh(core));
740 return -EINVAL;
741 }
742
743 /* FIXME: It assumes depth=2 */
744 /* The only currently supported format is 16 bits/pixel */
745 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
746 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
747 return -EINVAL;
748
749 if (buf->fmt != fh->fmt ||
750 buf->vb.width != fh->width ||
751 buf->vb.height != fh->height ||
752 buf->vb.field != field) {
753 buf->fmt = fh->fmt;
754 buf->vb.width = fh->width;
755 buf->vb.height = fh->height;
756 buf->vb.field = field;
757 buf->vb.state = STATE_NEEDS_INIT;
758 }
759
760 if (STATE_NEEDS_INIT == buf->vb.state) {
761 if (0 != (rc = videobuf_iolock(vq,&buf->vb,NULL)))
762 goto fail;
763 urb_init=1;
764 }
765
766
767 if (!dev->isoc_ctl.num_bufs)
768 urb_init=1;
769
770 if (urb_init) {
771 /* Should allocate/request at least h
772 res x v res x 2 bytes/pixel */
773 urbsize=(buf->vb.size+dev->max_isoc_in-1)/dev->max_isoc_in;
774
775 /* Hack to allocate memory for Video + Audio */
776 /* FIXME: should also consider header ovehead of
777 4 bytes/180 bytes */
778 urbsize+=((48000*4+24)/25+dev->max_isoc_in-1)/dev->max_isoc_in;
779
780 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d packets to handle "
781 "%lu size\n", urbsize,buf->vb.size);
782 rc = tm6000_prepare_isoc(dev, urbsize, 2);
783
784 if (rc<0)
785 goto fail;
786 }
787
788 buf->vb.state = STATE_PREPARED;
789 return 0;
790
791fail:
792 free_buffer(vq,buf);
793 return rc;
794}
795
796static void
797buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
798{
799 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
800 struct tm6000_fh *fh = vq->priv_data;
801 struct tm6000_core *dev = fh->dev;
802 struct tm6000_dmaqueue *vidq = &dev->vidq;
803 struct tm6000_buffer *prev;
804
805 if (!list_empty(&vidq->queued)) {
806 list_add_tail(&buf->vb.queue,&vidq->queued);
807 buf->vb.state = STATE_QUEUED;
808 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - "
809 "append to queued\n", buf, buf->vb.i);
810 } else if (list_empty(&vidq->active)) {
811 list_add_tail(&buf->vb.queue,&vidq->active);
812 buf->vb.state = STATE_ACTIVE;
813 mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
814 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - "
815 "first active\n", buf, buf->vb.i);
816 tm6000_start_thread(vidq, buf);
817 } else {
818 prev = list_entry(vidq->active.prev, struct tm6000_buffer, vb.queue);
819 if (prev->vb.width == buf->vb.width &&
820 prev->vb.height == buf->vb.height &&
821 prev->fmt == buf->fmt) {
822 list_add_tail(&buf->vb.queue,&vidq->active);
823 buf->vb.state = STATE_ACTIVE;
824 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -"
825 " append to active\n", buf, buf->vb.i);
826 } else {
827 list_add_tail(&buf->vb.queue,&vidq->queued);
828 buf->vb.state = STATE_QUEUED;
829 dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -"
830 " first queued\n", buf, buf->vb.i);
831 }
832 }
833}
834
835static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
836{
837 struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
838 struct tm6000_fh *fh = vq->priv_data;
839 struct tm6000_core *dev = (struct tm6000_core*)fh->dev;
840 struct tm6000_dmaqueue *vidq = &dev->vidq;
841
842 tm6000_stop_thread(vidq);
843
844 free_buffer(vq,buf);
845}
846
847static struct videobuf_queue_ops tm6000_video_qops = {
848 .buf_setup = buffer_setup,
849 .buf_prepare = buffer_prepare,
850 .buf_queue = buffer_queue,
851 .buf_release = buffer_release,
852};
853
854/* ------------------------------------------------------------------
855 IOCTL handling
856 ------------------------------------------------------------------*/
857
858static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh)
859{
860 /* is it free? */
861 mutex_lock(&dev->lock);
862 if (dev->resources) {
863 /* no, someone else uses it */
864 mutex_unlock(&dev->lock);
865 return 0;
866 }
867 /* it's free, grab it */
868 dev->resources =1;
869 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
870 mutex_unlock(&dev->lock);
871 return 1;
872}
873
874static int res_locked(struct tm6000_core *dev)
875{
876 return (dev->resources);
877}
878
879static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
880{
881 mutex_lock(&dev->lock);
882 dev->resources = 0;
883 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
884 mutex_unlock(&dev->lock);
885}
886
887/* ------------------------------------------------------------------
888 IOCTL vidioc handling
889 ------------------------------------------------------------------*/
890static int vidioc_querycap (struct file *file, void *priv,
891 struct v4l2_capability *cap)
892{
893 // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
894
895 strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
896 strlcpy(cap->card,"Trident TVMaster TM5600/6000", sizeof(cap->card));
897 // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
898 cap->version = TM6000_VERSION;
899 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
900 V4L2_CAP_STREAMING |
901 V4L2_CAP_TUNER |
902 V4L2_CAP_READWRITE;
903 return 0;
904}
905
906static int vidioc_enum_fmt_cap (struct file *file, void *priv,
907 struct v4l2_fmtdesc *f)
908{
909 if (unlikely(f->index >= ARRAY_SIZE(format)))
910 return -EINVAL;
911
912 strlcpy(f->description,format[f->index].name,sizeof(f->description));
913 f->pixelformat = format[f->index].fourcc;
914 return 0;
915}
916
917static int vidioc_g_fmt_cap (struct file *file, void *priv,
918 struct v4l2_format *f)
919{
920 struct tm6000_fh *fh=priv;
921
922 f->fmt.pix.width = fh->width;
923 f->fmt.pix.height = fh->height;
924 f->fmt.pix.field = fh->vb_vidq.field;
925 f->fmt.pix.pixelformat = fh->fmt->fourcc;
926 f->fmt.pix.bytesperline =
927 (f->fmt.pix.width * fh->fmt->depth) >> 3;
928 f->fmt.pix.sizeimage =
929 f->fmt.pix.height * f->fmt.pix.bytesperline;
930
931 return (0);
932}
933
934static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc)
935{
936 unsigned int i;
937
938 for (i = 0; i < ARRAY_SIZE(format); i++)
939 if (format[i].fourcc == fourcc)
940 return format+i;
941 return NULL;
942}
943
944static int vidioc_try_fmt_cap (struct file *file, void *priv,
945 struct v4l2_format *f)
946{
947 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
948 struct tm6000_fmt *fmt;
949 enum v4l2_field field;
950
951 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
952 if (NULL == fmt) {
953 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
954 " invalid.\n", f->fmt.pix.pixelformat);
955 return -EINVAL;
956 }
957
958 field = f->fmt.pix.field;
959
960 if (field == V4L2_FIELD_ANY) {
961// field=V4L2_FIELD_INTERLACED;
962 field=V4L2_FIELD_SEQ_TB;
963 } else if (V4L2_FIELD_INTERLACED != field) {
964 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
965 return -EINVAL;
966 }
967
968 if (f->fmt.pix.width < norm_minw(core))
969 f->fmt.pix.width = norm_minw(core);
970
971 if (f->fmt.pix.width > norm_maxw(core))
972 f->fmt.pix.width = norm_maxw(core);
973
974 if (f->fmt.pix.height < norm_minh(core))
975 f->fmt.pix.height = norm_minh(core);
976
977 if (f->fmt.pix.height > norm_maxh(core))
978 f->fmt.pix.height = norm_maxh(core);
979
980 f->fmt.pix.width &= ~0x01;
981
982 f->fmt.pix.field = field;
983
984 f->fmt.pix.bytesperline =
985 (f->fmt.pix.width * fmt->depth) >> 3;
986 f->fmt.pix.sizeimage =
987 f->fmt.pix.height * f->fmt.pix.bytesperline;
988
989 return 0;
990}
991
992/*FIXME: This seems to be generic enough to be at videodev2 */
993static int vidioc_s_fmt_cap (struct file *file, void *priv,
994 struct v4l2_format *f)
995{
996 struct tm6000_fh *fh=priv;
997 struct tm6000_core *dev = fh->dev;
998 int ret = vidioc_try_fmt_cap(file,fh,f);
999 if (ret < 0)
1000 return (ret);
1001
1002 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1003 fh->width = f->fmt.pix.width;
1004 fh->height = f->fmt.pix.height;
1005 fh->vb_vidq.field = f->fmt.pix.field;
1006 fh->type = f->type;
1007
1008 dev->fourcc = f->fmt.pix.pixelformat;
1009
1010 tm6000_set_fourcc_format(dev);
1011
1012 return (0);
1013}
1014
1015static int vidioc_reqbufs (struct file *file, void *priv,
1016 struct v4l2_requestbuffers *p)
1017{
1018 struct tm6000_fh *fh=priv;
1019
1020 return (videobuf_reqbufs(&fh->vb_vidq, p));
1021}
1022
1023static int vidioc_querybuf (struct file *file, void *priv,
1024 struct v4l2_buffer *p)
1025{
1026 struct tm6000_fh *fh=priv;
1027
1028 return (videobuf_querybuf(&fh->vb_vidq, p));
1029}
1030
1031static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
1032{
1033 struct tm6000_fh *fh=priv;
1034
1035 return (videobuf_qbuf(&fh->vb_vidq, p));
1036}
1037
1038static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
1039{
1040 struct tm6000_fh *fh=priv;
1041
1042 return (videobuf_dqbuf(&fh->vb_vidq, p,
1043 file->f_flags & O_NONBLOCK));
1044}
1045
1046#ifdef CONFIG_VIDEO_V4L1_COMPAT
1047static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
1048{
1049 struct tm6000_fh *fh=priv;
1050
1051 return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
1052}
1053#endif
1054
1055static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1056{
1057 struct tm6000_fh *fh=priv;
1058 struct tm6000_core *dev = fh->dev;
1059
1060 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1061 return -EINVAL;
1062 if (i != fh->type)
1063 return -EINVAL;
1064
1065 if (!res_get(dev,fh))
1066 return -EBUSY;
1067 return (videobuf_streamon(&fh->vb_vidq));
1068}
1069
1070static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1071{
1072 struct tm6000_fh *fh=priv;
1073 struct tm6000_core *dev = fh->dev;
1074
1075 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1076 return -EINVAL;
1077 if (i != fh->type)
1078 return -EINVAL;
1079
1080 videobuf_streamoff(&fh->vb_vidq);
1081 res_free(dev,fh);
1082
1083 return (0);
1084}
1085
1086static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
1087{
1088 int rc=0;
1089 struct tm6000_fh *fh=priv;
1090 struct tm6000_core *dev = fh->dev;
1091
1092 rc=tm6000_set_standard (dev, norm);
1093 if (rc<0)
1094 return rc;
1095
1096 tm6000_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm);
1097
1098 return 0;
1099}
1100
1101static int vidioc_enum_input (struct file *file, void *priv,
1102 struct v4l2_input *inp)
1103{
1104 switch (inp->index) {
1105 case TM6000_INPUT_TV:
1106 inp->type = V4L2_INPUT_TYPE_TUNER;
1107 strcpy(inp->name,"Television");
1108 break;
1109 case TM6000_INPUT_COMPOSITE:
1110 inp->type = V4L2_INPUT_TYPE_CAMERA;
1111 strcpy(inp->name,"Composite");
1112 break;
1113 case TM6000_INPUT_SVIDEO:
1114 inp->type = V4L2_INPUT_TYPE_CAMERA;
1115 strcpy(inp->name,"S-Video");
1116 break;
1117 default:
1118 return -EINVAL;
1119 }
1120 inp->std = TM6000_STD;
1121
1122 return 0;
1123}
1124
1125static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
1126{
1127 struct tm6000_fh *fh=priv;
1128 struct tm6000_core *dev = fh->dev;
1129
1130 *i=dev->input;
1131
1132 return 0;
1133}
1134static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
1135{
1136 struct tm6000_fh *fh=priv;
1137 struct tm6000_core *dev = fh->dev;
1138 int rc=0;
1139 char buf[1];
1140
1141 switch (i) {
1142 case TM6000_INPUT_TV:
1143 dev->input=i;
1144 *buf=0;
1145 break;
1146 case TM6000_INPUT_COMPOSITE:
1147 case TM6000_INPUT_SVIDEO:
1148 dev->input=i;
1149 *buf=1;
1150 break;
1151 default:
1152 return -EINVAL;
1153 }
1154 rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR,
1155 REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
1156
1157 if (!rc) {
1158 dev->input=i;
7c3f53ec 1159 rc=vidioc_s_std (file, priv, &dev->vfd->current_norm);
9701dc94
MCC		 1160 }
1161
1162 return (rc);
1163}
1164
1165 /* --- controls ---------------------------------------------- */
1166static int vidioc_queryctrl (struct file *file, void *priv,
1167 struct v4l2_queryctrl *qc)
1168{
1169 int i;
1170
1171 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1172 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1173 memcpy(qc, &(tm6000_qctrl[i]),
1174 sizeof(*qc));
1175 return (0);
1176 }
1177
1178 return -EINVAL;
1179}
1180
1181static int vidioc_g_ctrl (struct file *file, void *priv,
1182 struct v4l2_control *ctrl)
1183{
1184 struct tm6000_fh *fh=priv;
1185 struct tm6000_core *dev = fh->dev;
1186 int val;
1187
1188 /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1189 switch (ctrl->id) {
1190 case V4L2_CID_CONTRAST:
1191 val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x08, 0);
1192 break;
1193 case V4L2_CID_BRIGHTNESS:
1194 val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x09, 0);
1195 return 0;
1196 case V4L2_CID_SATURATION:
1197 val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, 0);
1198 return 0;
1199 case V4L2_CID_HUE:
1200 val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, 0);
1201 return 0;
1202 default:
1203 return -EINVAL;
1204 }
1205
1206 if (val<0)
1207 return val;
1208
1209 ctrl->value=val;
1210
1211 return 0;
1212}
1213static int vidioc_s_ctrl (struct file *file, void *priv,
1214 struct v4l2_control *ctrl)
1215{
1216 struct tm6000_fh *fh =priv;
1217 struct tm6000_core *dev = fh->dev;
1218 u8 val=ctrl->value;
1219
1220 switch (ctrl->id) {
1221 case V4L2_CID_CONTRAST:
1222 tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x08, val);
1223 return 0;
1224 case V4L2_CID_BRIGHTNESS:
1225 tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x09, val);
1226 return 0;
1227 case V4L2_CID_SATURATION:
1228 tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, val);
1229 return 0;
1230 case V4L2_CID_HUE:
1231 tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, val);
1232 return 0;
1233 }
1234 return -EINVAL;
1235}
1236
1237static int vidioc_g_tuner (struct file *file, void *priv,
1238 struct v4l2_tuner *t)
1239{
1240 struct tm6000_fh *fh =priv;
1241 struct tm6000_core *dev = fh->dev;
1242
1243 if (unlikely(UNSET == dev->tuner_type))
1244 return -EINVAL;
1245 if (0 != t->index)
1246 return -EINVAL;
1247
1248 strcpy(t->name, "Television");
1249 t->type = V4L2_TUNER_ANALOG_TV;
1250 t->capability = V4L2_TUNER_CAP_NORM;
1251 t->rangehigh = 0xffffffffUL;
1252 t->rxsubchans = V4L2_TUNER_SUB_MONO;
1253
1254 return 0;
1255}
1256
1257static int vidioc_s_tuner (struct file *file, void *priv,
1258 struct v4l2_tuner *t)
1259{
1260 struct tm6000_fh *fh =priv;
1261 struct tm6000_core *dev = fh->dev;
1262
1263 if (UNSET == dev->tuner_type)
1264 return -EINVAL;
1265 if (0 != t->index)
1266 return -EINVAL;
1267
1268 return 0;
1269}
1270
1271static int vidioc_g_frequency (struct file *file, void *priv,
1272 struct v4l2_frequency *f)
1273{
1274 struct tm6000_fh *fh =priv;
1275 struct tm6000_core *dev = fh->dev;
1276
1277 if (unlikely(UNSET == dev->tuner_type))
1278 return -EINVAL;
1279
1280 f->type = V4L2_TUNER_ANALOG_TV;
1281 f->frequency = dev->freq;
1282
1283 tm6000_i2c_call_clients(dev,VIDIOC_G_FREQUENCY,f);
1284
1285 return 0;
1286}
1287
1288static int vidioc_s_frequency (struct file *file, void *priv,
1289 struct v4l2_frequency *f)
1290{
1291 struct tm6000_fh *fh =priv;
1292 struct tm6000_core *dev = fh->dev;
1293
1294 if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
1295 return -EINVAL;
1296
1297 if (unlikely(UNSET == dev->tuner_type))
1298 return -EINVAL;
1299 if (unlikely(f->tuner != 0))
1300 return -EINVAL;
1301
1302// mutex_lock(&dev->lock);
1303 dev->freq = f->frequency;
1304 tm6000_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
1305// mutex_unlock(&dev->lock);
1306
1307 return 0;
1308}
1309
1310/* ------------------------------------------------------------------
1311 File operations for the device
1312 ------------------------------------------------------------------*/
1313
1314static int tm6000_open(struct inode *inode, struct file *file)
1315{
1316 int minor = iminor(inode);
1317 struct tm6000_core *h,*dev = NULL;
1318 struct tm6000_fh *fh;
1319 struct list_head *list;
1320 enum v4l2_buf_type type = 0;
1321 int i,rc;
1322
7c3f53ec
ML		 1323 printk(KERN_INFO "tm6000: open called (minor=%d)\n",minor);
1324
1325
9701dc94
MCC		 1326 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called "
1327 "(minor=%d)\n",minor);
1328
1329 list_for_each(list,&tm6000_corelist) {
1330 h = list_entry(list, struct tm6000_core, tm6000_corelist);
7c3f53ec 1331 if (h->vfd->minor == minor) {
9701dc94
MCC		 1332 dev = h;
1333 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1334 }
1335 }
1336 if (NULL == dev)
1337 return -ENODEV;
1338
1339
1340 /* If more than one user, mutex should be added */
1341 dev->users++;
1342
1343 dprintk(dev, V4L2_DEBUG_OPEN, "open minor=%d type=%s users=%d\n",
1344 minor,v4l2_type_names[type],dev->users);
1345
1346 /* allocate + initialize per filehandle data */
1347 fh = kzalloc(sizeof(*fh),GFP_KERNEL);
1348 if (NULL == fh) {
1349 dev->users--;
1350 return -ENOMEM;
1351 }
1352
1353 file->private_data = fh;
1354 fh->dev = dev;
1355
1356 fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1357 dev->fourcc = format[0].fourcc;
1358
1359 fh->fmt = format_by_fourcc(dev->fourcc);
1360 fh->width = norm_maxw();
1361 fh->height = norm_maxh();
1362
1363 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1364 "dev->vidq=0x%08lx\n",
1365 (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
1366 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1367 "queued=%d\n",list_empty(&dev->vidq.queued));
1368 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1369 "active=%d\n",list_empty(&dev->vidq.active));
1370
1371 /* initialize hardware on analog mode */
1372 if (dev->mode!=TM6000_MODE_ANALOG) {
1373 rc=tm6000_init_analog_mode (dev);
1374 if (rc<0)
1375 return rc;
1376
1377 /* Put all controls at a sane state */
1378 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1379 qctl_regs[i] =tm6000_qctrl[i].default_value;
1380
1381 dev->mode=TM6000_MODE_ANALOG;
1382 }
1383
1384 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1385 NULL, &dev->slock,
1386 fh->type,
1387 V4L2_FIELD_INTERLACED,
1388 sizeof(struct tm6000_buffer),fh);
1389
1390 return 0;
1391}
1392
1393static ssize_t
1394tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1395{
1396 struct tm6000_fh *fh = file->private_data;
1397
1398 if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1399 if (res_locked(fh->dev))
1400 return -EBUSY;
1401
1402 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1403 file->f_flags & O_NONBLOCK);
1404 }
1405 return 0;
1406}
1407
1408static unsigned int
1409tm6000_poll(struct file *file, struct poll_table_struct *wait)
1410{
1411 struct tm6000_fh *fh = file->private_data;
1412 struct tm6000_buffer *buf;
1413
1414 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1415 return POLLERR;
1416
1417 if (res_get(fh->dev,fh)) {
1418 /* streaming capture */
1419 if (list_empty(&fh->vb_vidq.stream))
1420 return POLLERR;
1421 buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
1422 } else {
1423 /* read() capture */
1424 buf = (struct tm6000_buffer*)fh->vb_vidq.read_buf;
1425 if (NULL == buf)
1426 return POLLERR;
1427 }
1428 poll_wait(file, &buf->vb.done, wait);
1429 if (buf->vb.state == STATE_DONE ||
1430 buf->vb.state == STATE_ERROR)
1431 return POLLIN|POLLRDNORM;
1432 return 0;
1433}
1434
1435static int tm6000_release(struct inode *inode, struct file *file)
1436{
1437 struct tm6000_fh *fh = file->private_data;
1438 struct tm6000_core *dev = fh->dev;
1439 struct tm6000_dmaqueue *vidq = &dev->vidq;
1440 int minor = iminor(inode);
1441
7c3f53ec
ML		 1442 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (minor=%d, users=%d)\n",minor,dev->users);
1443
a58d35cb
MCC		 1444 dev->users--;
1445
1446 if (!dev->users) {
1447 tm6000_stop_thread(vidq);
1448 videobuf_mmap_free(&fh->vb_vidq);
1449 }
9701dc94
MCC		 1450
1451 kfree (fh);
1452
9701dc94
MCC		 1453 return 0;
1454}
1455
1456static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1457{
1458 struct tm6000_fh *fh = file->private_data;
1459 int ret;
1460
1461 ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
1462
1463 return ret;
1464}
1465
1466static struct file_operations tm6000_fops = {
1467 .owner = THIS_MODULE,
1468 .open = tm6000_open,
1469 .release = tm6000_release,
1470 .ioctl = video_ioctl2, /* V4L2 ioctl handler */
1471 .read = tm6000_read,
1472 .poll = tm6000_poll,
1473 .mmap = tm6000_mmap,
1474 .llseek = no_llseek,
1475};
1476
1477static struct video_device tm6000_template = {
1478 .name = "tm6000",
1479 .type = VID_TYPE_CAPTURE,
1480 .fops = &tm6000_fops,
1481 .minor = -1,
1482 .release = video_device_release,
1483
1484 .vidioc_querycap = vidioc_querycap,
1485 .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
1486 .vidioc_g_fmt_cap = vidioc_g_fmt_cap,
1487 .vidioc_try_fmt_cap = vidioc_try_fmt_cap,
1488 .vidioc_s_fmt_cap = vidioc_s_fmt_cap,
1489 .vidioc_s_std = vidioc_s_std,
1490 .vidioc_enum_input = vidioc_enum_input,
1491 .vidioc_g_input = vidioc_g_input,
1492 .vidioc_s_input = vidioc_s_input,
1493 .vidioc_queryctrl = vidioc_queryctrl,
1494 .vidioc_g_ctrl = vidioc_g_ctrl,
1495 .vidioc_s_ctrl = vidioc_s_ctrl,
1496 .vidioc_g_tuner = vidioc_g_tuner,
1497 .vidioc_s_tuner = vidioc_s_tuner,
1498 .vidioc_g_frequency = vidioc_g_frequency,
1499 .vidioc_s_frequency = vidioc_s_frequency,
1500 .vidioc_streamon = vidioc_streamon,
1501 .vidioc_streamoff = vidioc_streamoff,
1502 .vidioc_reqbufs = vidioc_reqbufs,
1503 .vidioc_querybuf = vidioc_querybuf,
1504 .vidioc_qbuf = vidioc_qbuf,
1505 .vidioc_dqbuf = vidioc_dqbuf,
1506#ifdef CONFIG_VIDEO_V4L1_COMPAT
1507 .vidiocgmbuf = vidiocgmbuf,
1508#endif
1509 .tvnorms = TM6000_STD,
1510 .current_norm = V4L2_STD_NTSC_M,
1511};
1512/* -----------------------------------------------------------------
1513 Initialization and module stuff
1514 ------------------------------------------------------------------*/
1515
1516int tm6000_v4l2_register(struct tm6000_core *dev)
1517{
7c3f53ec
ML		 1518 int ret = -1;
1519 struct video_device *vfd;
1520
1521 vfd = video_device_alloc();
1522 if(!vfd) {
1523 return -ENOMEM;
1524 }
1525 dev->vfd = vfd;
9701dc94
MCC		 1526
1527 list_add_tail(&dev->tm6000_corelist,&tm6000_corelist);
1528
1529 /* init video dma queues */
1530 INIT_LIST_HEAD(&dev->vidq.active);
1531 INIT_LIST_HEAD(&dev->vidq.queued);
1532
1533 dev->vidq.timeout.function = tm6000_vid_timeout;
1534 dev->vidq.timeout.data = (unsigned long)dev;
1535 init_timer(&dev->vidq.timeout);
1536
7c3f53ec
ML		 1537 memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd)));
1538 dev->vfd->debug=tm6000_debug;
9701dc94 1539
7c3f53ec 1540 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
9701dc94
MCC		 1541 printk(KERN_INFO "Trident TVMaster TM5600/TM6000 USB2 board (Load status: %d)\n", ret);
1542 return ret;
1543}
1544
1545int tm6000_v4l2_unregister(struct tm6000_core *dev)
1546{
1547 struct tm6000_core *h;
22927e8e 1548 struct list_head *pos, *tmp;
9701dc94 1549
7c3f53ec 1550 video_unregister_device(dev->vfd);
22927e8e
ML		 1551
1552 list_for_each_safe(pos, tmp, &tm6000_corelist) {
1553 h = list_entry(pos, struct tm6000_core, tm6000_corelist);
9701dc94 1554 if (h == dev) {
8c9d26fd 1555 list_del(pos);
9701dc94
MCC		 1556 }
1557 }
1558
1559 return 0;
1560}
1561
1562int tm6000_v4l2_exit(void)
1563{
1564 return 0;
1565}
1566
1567module_param(video_nr, int, 0);
1568MODULE_PARM_DESC(video_nr,"Allow changing video device number");
1569
1570module_param_named (debug, tm6000_debug, int, 0444);
1571MODULE_PARM_DESC(debug,"activates debug info");
1572
1573module_param(vid_limit,int,0644);
1574MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
1575
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