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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / drivers / staging / tm6000 / tm6000-video.c
blob8d8b939915d8117116977f4372695e916d81198e
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/usb.h>
34 #include <linux/videodev2.h>
35 #include <media/v4l2-ioctl.h>
36 #include <media/tuner.h>
37 #include <linux/interrupt.h>
38 #include <linux/kthread.h>
39 #include <linux/highmem.h>
40 #include <linux/freezer.h>
41
42 #include "tm6000-regs.h"
43 #include "tm6000.h"
44
45 #define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
46
47 /* Limits minimum and default number of buffers */
48 #define TM6000_MIN_BUF 4
49 #define TM6000_DEF_BUF 8
50
51 #define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
52
53 /* Declare static vars that will be used as parameters */
54 static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
55 static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
56 static int radio_nr = -1; /* /dev/radioN, -1 for autodetect */
57
58 /* Debug level */
59 int tm6000_debug;
60 EXPORT_SYMBOL_GPL(tm6000_debug);
61
62 static const struct v4l2_queryctrl no_ctrl = {
63 .name = "42",
64 .flags = V4L2_CTRL_FLAG_DISABLED,
65 };
66
67 /* supported controls */
68 static struct v4l2_queryctrl tm6000_qctrl[] = {
69 {
70 .id = V4L2_CID_BRIGHTNESS,
71 .type = V4L2_CTRL_TYPE_INTEGER,
72 .name = "Brightness",
73 .minimum = 0,
74 .maximum = 255,
75 .step = 1,
76 .default_value = 54,
77 .flags = 0,
78 }, {
79 .id = V4L2_CID_CONTRAST,
80 .type = V4L2_CTRL_TYPE_INTEGER,
81 .name = "Contrast",
82 .minimum = 0,
83 .maximum = 255,
84 .step = 0x1,
85 .default_value = 119,
86 .flags = 0,
87 }, {
88 .id = V4L2_CID_SATURATION,
89 .type = V4L2_CTRL_TYPE_INTEGER,
90 .name = "Saturation",
91 .minimum = 0,
92 .maximum = 255,
93 .step = 0x1,
94 .default_value = 112,
95 .flags = 0,
96 }, {
97 .id = V4L2_CID_HUE,
98 .type = V4L2_CTRL_TYPE_INTEGER,
99 .name = "Hue",
100 .minimum = -128,
101 .maximum = 127,
102 .step = 0x1,
103 .default_value = 0,
104 .flags = 0,
105 },
106 /* --- audio --- */
107 {
108 .id = V4L2_CID_AUDIO_MUTE,
109 .name = "Mute",
110 .minimum = 0,
111 .maximum = 1,
112 .type = V4L2_CTRL_TYPE_BOOLEAN,
113 }, {
114 .id = V4L2_CID_AUDIO_VOLUME,
115 .name = "Volume",
116 .minimum = -15,
117 .maximum = 15,
118 .step = 1,
119 .default_value = 0,
120 .type = V4L2_CTRL_TYPE_INTEGER,
121 }
122 };
123
124 static const unsigned int CTRLS = ARRAY_SIZE(tm6000_qctrl);
125 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
126
127 static struct tm6000_fmt format[] = {
128 {
129 .name = "4:2:2, packed, YVY2",
130 .fourcc = V4L2_PIX_FMT_YUYV,
131 .depth = 16,
132 }, {
133 .name = "4:2:2, packed, UYVY",
134 .fourcc = V4L2_PIX_FMT_UYVY,
135 .depth = 16,
136 }, {
137 .name = "A/V + VBI mux packet",
138 .fourcc = V4L2_PIX_FMT_TM6000,
139 .depth = 16,
140 }
141 };
142
143 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
144 {
145 unsigned int i;
146
147 for (i = 0; i < CTRLS; i++)
148 if (tm6000_qctrl[i].id == id)
149 return tm6000_qctrl+i;
150 return NULL;
151 }
152
153 /* ------------------------------------------------------------------
154 * DMA and thread functions
155 * ------------------------------------------------------------------
156 */
157
158 #define norm_maxw(a) 720
159 #define norm_maxh(a) 576
160
161 #define norm_minw(a) norm_maxw(a)
162 #define norm_minh(a) norm_maxh(a)
163
164 /*
165 * video-buf generic routine to get the next available buffer
166 */
167 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
168 struct tm6000_buffer **buf)
169 {
170 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
171 char *outp;
172
173 if (list_empty(&dma_q->active)) {
174 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
175 *buf = NULL;
176 return;
177 }
178
179 *buf = list_entry(dma_q->active.next,
180 struct tm6000_buffer, vb.queue);
181
182 /* Cleans up buffer - Useful for testing for frame/URB loss */
183 outp = videobuf_to_vmalloc(&(*buf)->vb);
184
185 return;
186 }
187
188 /*
189 * Announces that a buffer were filled and request the next
190 */
191 static inline void buffer_filled(struct tm6000_core *dev,
192 struct tm6000_dmaqueue *dma_q,
193 struct tm6000_buffer *buf)
194 {
195 /* Advice that buffer was filled */
196 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
197 buf->vb.state = VIDEOBUF_DONE;
198 buf->vb.field_count++;
199 do_gettimeofday(&buf->vb.ts);
200
201 list_del(&buf->vb.queue);
202 wake_up(&buf->vb.done);
203 }
204
205 const char *tm6000_msg_type[] = {
206 "unknown(0)", /* 0 */
207 "video", /* 1 */
208 "audio", /* 2 */
209 "vbi", /* 3 */
210 "pts", /* 4 */
211 "err", /* 5 */
212 "unknown(6)", /* 6 */
213 "unknown(7)", /* 7 */
214 };
215
216 /*
217 * Identify the tm5600/6000 buffer header type and properly handles
218 */
219 static int copy_streams(u8 *data, unsigned long len,
220 struct urb *urb)
221 {
222 struct tm6000_dmaqueue *dma_q = urb->context;
223 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
224 u8 *ptr = data, *endp = data+len, c;
225 unsigned long header = 0;
226 int rc = 0;
227 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
228 struct tm6000_buffer *vbuf = NULL;
229 char *voutp = NULL;
230 unsigned int linewidth;
231
232 if (!dev->radio) {
233 /* get video buffer */
234 get_next_buf(dma_q, &vbuf);
235
236 if (!vbuf)
237 return rc;
238 voutp = videobuf_to_vmalloc(&vbuf->vb);
239
240 if (!voutp)
241 return 0;
242 }
243
244 for (ptr = data; ptr < endp;) {
245 if (!dev->isoc_ctl.cmd) {
246 /* Header */
247 if (dev->isoc_ctl.tmp_buf_len > 0) {
248 /* from last urb or packet */
249 header = dev->isoc_ctl.tmp_buf;
250 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
251 memcpy((u8 *)&header +
252 dev->isoc_ctl.tmp_buf_len,
253 ptr,
254 4 - dev->isoc_ctl.tmp_buf_len);
255 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
256 }
257 dev->isoc_ctl.tmp_buf_len = 0;
258 } else {
259 if (ptr + 3 >= endp) {
260 /* have incomplete header */
261 dev->isoc_ctl.tmp_buf_len = endp - ptr;
262 memcpy(&dev->isoc_ctl.tmp_buf, ptr,
263 dev->isoc_ctl.tmp_buf_len);
264 return rc;
265 }
266 /* Seek for sync */
267 for (; ptr < endp - 3; ptr++) {
268 if (*(ptr + 3) == 0x47)
269 break;
270 }
271 /* Get message header */
272 header = *(unsigned long *)ptr;
273 ptr += 4;
274 }
275
276 /* split the header fields */
277 c = (header >> 24) & 0xff;
278 size = ((header & 0x7e) << 1);
279 if (size > 0)
280 size -= 4;
281 block = (header >> 7) & 0xf;
282 field = (header >> 11) & 0x1;
283 line = (header >> 12) & 0x1ff;
284 cmd = (header >> 21) & 0x7;
285 /* Validates haeder fields */
286 if (size > TM6000_URB_MSG_LEN)
287 size = TM6000_URB_MSG_LEN;
288 pktsize = TM6000_URB_MSG_LEN;
289 /* calculate position in buffer
290 * and change the buffer
291 */
292 switch (cmd) {
293 case TM6000_URB_MSG_VIDEO:
294 if (!dev->radio) {
295 if ((dev->isoc_ctl.vfield != field) &&
296 (field == 1)) {
297 /* Announces that a new buffer
298 * were filled
299 */
300 buffer_filled(dev, dma_q, vbuf);
301 dprintk(dev, V4L2_DEBUG_ISOC,
302 "new buffer filled\n");
303 get_next_buf(dma_q, &vbuf);
304 if (!vbuf)
305 return rc;
306 voutp = videobuf_to_vmalloc(&vbuf->vb);
307 if (!voutp)
308 return rc;
309 memset(voutp, 0, vbuf->vb.size);
310 }
311 linewidth = vbuf->vb.width << 1;
312 pos = ((line << 1) - field - 1) *
313 linewidth + block * TM6000_URB_MSG_LEN;
314 /* Don't allow to write out of the buffer */
315 if (pos + size > vbuf->vb.size)
316 cmd = TM6000_URB_MSG_ERR;
317 dev->isoc_ctl.vfield = field;
318 }
319 break;
320 case TM6000_URB_MSG_VBI:
321 break;
322 case TM6000_URB_MSG_AUDIO:
323 case TM6000_URB_MSG_PTS:
324 size = pktsize; /* Size is always 180 bytes */
325 break;
326 }
327 } else {
328 /* Continue the last copy */
329 cmd = dev->isoc_ctl.cmd;
330 size = dev->isoc_ctl.size;
331 pos = dev->isoc_ctl.pos;
332 pktsize = dev->isoc_ctl.pktsize;
333 field = dev->isoc_ctl.field;
334 }
335 cpysize = (endp - ptr > size) ? size : endp - ptr;
336 if (cpysize) {
337 /* copy data in different buffers */
338 switch (cmd) {
339 case TM6000_URB_MSG_VIDEO:
340 /* Fills video buffer */
341 if (vbuf)
342 memcpy(&voutp[pos], ptr, cpysize);
343 break;
344 case TM6000_URB_MSG_AUDIO: {
345 int i;
346 for (i = 0; i < cpysize; i += 2)
347 swab16s((u16 *)(ptr + i));
348
349 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
350 break;
351 }
352 case TM6000_URB_MSG_VBI:
353 /* Need some code to copy vbi buffer */
354 break;
355 case TM6000_URB_MSG_PTS: {
356 /* Need some code to copy pts */
357 u32 pts;
358 pts = *(u32 *)ptr;
359 dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
360 field, pts);
361 break;
362 }
363 }
364 }
365 if (ptr + pktsize > endp) {
366 /* End of URB packet, but cmd processing is not
367 * complete. Preserve the state for a next packet
368 */
369 dev->isoc_ctl.pos = pos + cpysize;
370 dev->isoc_ctl.size = size - cpysize;
371 dev->isoc_ctl.cmd = cmd;
372 dev->isoc_ctl.field = field;
373 dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
374 ptr += endp - ptr;
375 } else {
376 dev->isoc_ctl.cmd = 0;
377 ptr += pktsize;
378 }
379 }
380 return 0;
381 }
382
383 /*
384 * Identify the tm5600/6000 buffer header type and properly handles
385 */
386 static int copy_multiplexed(u8 *ptr, unsigned long len,
387 struct urb *urb)
388 {
389 struct tm6000_dmaqueue *dma_q = urb->context;
390 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
391 unsigned int pos = dev->isoc_ctl.pos, cpysize;
392 int rc = 1;
393 struct tm6000_buffer *buf;
394 char *outp = NULL;
395
396 get_next_buf(dma_q, &buf);
397 if (buf)
398 outp = videobuf_to_vmalloc(&buf->vb);
399
400 if (!outp)
401 return 0;
402
403 while (len > 0) {
404 cpysize = min(len, buf->vb.size-pos);
405 memcpy(&outp[pos], ptr, cpysize);
406 pos += cpysize;
407 ptr += cpysize;
408 len -= cpysize;
409 if (pos >= buf->vb.size) {
410 pos = 0;
411 /* Announces that a new buffer were filled */
412 buffer_filled(dev, dma_q, buf);
413 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
414 get_next_buf(dma_q, &buf);
415 if (!buf)
416 break;
417 outp = videobuf_to_vmalloc(&(buf->vb));
418 if (!outp)
419 return rc;
420 pos = 0;
421 }
422 }
423
424 dev->isoc_ctl.pos = pos;
425 return rc;
426 }
427
428 static inline void print_err_status(struct tm6000_core *dev,
429 int packet, int status)
430 {
431 char *errmsg = "Unknown";
432
433 switch (status) {
434 case -ENOENT:
435 errmsg = "unlinked synchronuously";
436 break;
437 case -ECONNRESET:
438 errmsg = "unlinked asynchronuously";
439 break;
440 case -ENOSR:
441 errmsg = "Buffer error (overrun)";
442 break;
443 case -EPIPE:
444 errmsg = "Stalled (device not responding)";
445 break;
446 case -EOVERFLOW:
447 errmsg = "Babble (bad cable?)";
448 break;
449 case -EPROTO:
450 errmsg = "Bit-stuff error (bad cable?)";
451 break;
452 case -EILSEQ:
453 errmsg = "CRC/Timeout (could be anything)";
454 break;
455 case -ETIME:
456 errmsg = "Device does not respond";
457 break;
458 }
459 if (packet < 0) {
460 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
461 status, errmsg);
462 } else {
463 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
464 packet, status, errmsg);
465 }
466 }
467
468
469 /*
470 * Controls the isoc copy of each urb packet
471 */
472 static inline int tm6000_isoc_copy(struct urb *urb)
473 {
474 struct tm6000_dmaqueue *dma_q = urb->context;
475 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
476 int i, len = 0, rc = 1, status;
477 char *p;
478
479 if (urb->status < 0) {
480 print_err_status(dev, -1, urb->status);
481 return 0;
482 }
483
484 for (i = 0; i < urb->number_of_packets; i++) {
485 status = urb->iso_frame_desc[i].status;
486
487 if (status < 0) {
488 print_err_status(dev, i, status);
489 continue;
490 }
491
492 len = urb->iso_frame_desc[i].actual_length;
493
494 if (len > 0) {
495 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
496 if (!urb->iso_frame_desc[i].status) {
497 if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
498 rc = copy_multiplexed(p, len, urb);
499 if (rc <= 0)
500 return rc;
501 } else {
502 copy_streams(p, len, urb);
503 }
504 }
505 }
506 }
507 return rc;
508 }
509
510 /* ------------------------------------------------------------------
511 * URB control
512 * ------------------------------------------------------------------
513 */
514
515 /*
516 * IRQ callback, called by URB callback
517 */
518 static void tm6000_irq_callback(struct urb *urb)
519 {
520 struct tm6000_dmaqueue *dma_q = urb->context;
521 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
522 int i;
523
524 if (!dev)
525 return;
526
527 spin_lock(&dev->slock);
528 tm6000_isoc_copy(urb);
529 spin_unlock(&dev->slock);
530
531 /* Reset urb buffers */
532 for (i = 0; i < urb->number_of_packets; i++) {
533 urb->iso_frame_desc[i].status = 0;
534 urb->iso_frame_desc[i].actual_length = 0;
535 }
536
537 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
538 if (urb->status)
539 tm6000_err("urb resubmit failed (error=%i)\n",
540 urb->status);
541 }
542
543 /*
544 * Stop and Deallocate URBs
545 */
546 static void tm6000_uninit_isoc(struct tm6000_core *dev)
547 {
548 struct urb *urb;
549 int i;
550
551 dev->isoc_ctl.buf = NULL;
552 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
553 urb = dev->isoc_ctl.urb[i];
554 if (urb) {
555 usb_kill_urb(urb);
556 usb_unlink_urb(urb);
557 if (dev->isoc_ctl.transfer_buffer[i]) {
558 usb_free_coherent(dev->udev,
559 urb->transfer_buffer_length,
560 dev->isoc_ctl.transfer_buffer[i],
561 urb->transfer_dma);
562 }
563 usb_free_urb(urb);
564 dev->isoc_ctl.urb[i] = NULL;
565 }
566 dev->isoc_ctl.transfer_buffer[i] = NULL;
567 }
568
569 kfree(dev->isoc_ctl.urb);
570 kfree(dev->isoc_ctl.transfer_buffer);
571
572 dev->isoc_ctl.urb = NULL;
573 dev->isoc_ctl.transfer_buffer = NULL;
574 dev->isoc_ctl.num_bufs = 0;
575 }
576
577 /*
578 * Allocate URBs and start IRQ
579 */
580 static int tm6000_prepare_isoc(struct tm6000_core *dev)
581 {
582 struct tm6000_dmaqueue *dma_q = &dev->vidq;
583 int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
584 struct urb *urb;
585
586 /* De-allocates all pending stuff */
587 tm6000_uninit_isoc(dev);
588 /* Stop interrupt USB pipe */
589 tm6000_ir_int_stop(dev);
590
591 usb_set_interface(dev->udev,
592 dev->isoc_in.bInterfaceNumber,
593 dev->isoc_in.bAlternateSetting);
594
595 /* Start interrupt USB pipe */
596 tm6000_ir_int_start(dev);
597
598 pipe = usb_rcvisocpipe(dev->udev,
599 dev->isoc_in.endp->desc.bEndpointAddress &
600 USB_ENDPOINT_NUMBER_MASK);
601
602 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
603
604 if (size > dev->isoc_in.maxsize)
605 size = dev->isoc_in.maxsize;
606
607 dev->isoc_ctl.max_pkt_size = size;
608
609 max_packets = TM6000_MAX_ISO_PACKETS;
610 sb_size = max_packets * size;
611
612 dev->isoc_ctl.num_bufs = num_bufs;
613
614 dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
615 if (!dev->isoc_ctl.urb) {
616 tm6000_err("cannot alloc memory for usb buffers\n");
617 return -ENOMEM;
618 }
619
620 dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
621 GFP_KERNEL);
622 if (!dev->isoc_ctl.transfer_buffer) {
623 tm6000_err("cannot allocate memory for usbtransfer\n");
624 kfree(dev->isoc_ctl.urb);
625 return -ENOMEM;
626 }
627
628 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
629 " (%d bytes) of %d bytes each to handle %u size\n",
630 max_packets, num_bufs, sb_size,
631 dev->isoc_in.maxsize, size);
632
633 /* allocate urbs and transfer buffers */
634 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
635 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
636 if (!urb) {
637 tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
638 tm6000_uninit_isoc(dev);
639 usb_free_urb(urb);
640 return -ENOMEM;
641 }
642 dev->isoc_ctl.urb[i] = urb;
643
644 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
645 sb_size, GFP_KERNEL, &urb->transfer_dma);
646 if (!dev->isoc_ctl.transfer_buffer[i]) {
647 tm6000_err("unable to allocate %i bytes for transfer"
648 " buffer %i%s\n",
649 sb_size, i,
650 in_interrupt() ? " while in int" : "");
651 tm6000_uninit_isoc(dev);
652 return -ENOMEM;
653 }
654 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
655
656 usb_fill_bulk_urb(urb, dev->udev, pipe,
657 dev->isoc_ctl.transfer_buffer[i], sb_size,
658 tm6000_irq_callback, dma_q);
659 urb->interval = dev->isoc_in.endp->desc.bInterval;
660 urb->number_of_packets = max_packets;
661 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
662
663 for (j = 0; j < max_packets; j++) {
664 urb->iso_frame_desc[j].offset = size * j;
665 urb->iso_frame_desc[j].length = size;
666 }
667 }
668
669 return 0;
670 }
671
672 static int tm6000_start_thread(struct tm6000_core *dev)
673 {
674 struct tm6000_dmaqueue *dma_q = &dev->vidq;
675 int i;
676
677 dma_q->frame = 0;
678 dma_q->ini_jiffies = jiffies;
679
680 init_waitqueue_head(&dma_q->wq);
681
682 /* submit urbs and enables IRQ */
683 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
684 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
685 if (rc) {
686 tm6000_err("submit of urb %i failed (error=%i)\n", i,
687 rc);
688 tm6000_uninit_isoc(dev);
689 return rc;
690 }
691 }
692
693 return 0;
694 }
695
696 /* ------------------------------------------------------------------
697 * Videobuf operations
698 * ------------------------------------------------------------------
699 */
700
701 static int
702 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
703 {
704 struct tm6000_fh *fh = vq->priv_data;
705
706 *size = fh->fmt->depth * fh->width * fh->height >> 3;
707 if (0 == *count)
708 *count = TM6000_DEF_BUF;
709
710 if (*count < TM6000_MIN_BUF)
711 *count = TM6000_MIN_BUF;
712
713 while (*size * *count > vid_limit * 1024 * 1024)
714 (*count)--;
715
716 return 0;
717 }
718
719 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
720 {
721 struct tm6000_fh *fh = vq->priv_data;
722 struct tm6000_core *dev = fh->dev;
723 unsigned long flags;
724
725 if (in_interrupt())
726 BUG();
727
728 /* We used to wait for the buffer to finish here, but this didn't work
729 because, as we were keeping the state as VIDEOBUF_QUEUED,
730 videobuf_queue_cancel marked it as finished for us.
731 (Also, it could wedge forever if the hardware was misconfigured.)
732
733 This should be safe; by the time we get here, the buffer isn't
734 queued anymore. If we ever start marking the buffers as
735 VIDEOBUF_ACTIVE, it won't be, though.
736 */
737 spin_lock_irqsave(&dev->slock, flags);
738 if (dev->isoc_ctl.buf == buf)
739 dev->isoc_ctl.buf = NULL;
740 spin_unlock_irqrestore(&dev->slock, flags);
741
742 videobuf_vmalloc_free(&buf->vb);
743 buf->vb.state = VIDEOBUF_NEEDS_INIT;
744 }
745
746 static int
747 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
748 enum v4l2_field field)
749 {
750 struct tm6000_fh *fh = vq->priv_data;
751 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
752 struct tm6000_core *dev = fh->dev;
753 int rc = 0, urb_init = 0;
754
755 BUG_ON(NULL == fh->fmt);
756
757
758 /* FIXME: It assumes depth=2 */
759 /* The only currently supported format is 16 bits/pixel */
760 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
761 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
762 return -EINVAL;
763
764 if (buf->fmt != fh->fmt ||
765 buf->vb.width != fh->width ||
766 buf->vb.height != fh->height ||
767 buf->vb.field != field) {
768 buf->fmt = fh->fmt;
769 buf->vb.width = fh->width;
770 buf->vb.height = fh->height;
771 buf->vb.field = field;
772 buf->vb.state = VIDEOBUF_NEEDS_INIT;
773 }
774
775 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
776 rc = videobuf_iolock(vq, &buf->vb, NULL);
777 if (rc != 0)
778 goto fail;
779 urb_init = 1;
780 }
781
782 if (!dev->isoc_ctl.num_bufs)
783 urb_init = 1;
784
785 if (urb_init) {
786 rc = tm6000_prepare_isoc(dev);
787 if (rc < 0)
788 goto fail;
789
790 rc = tm6000_start_thread(dev);
791 if (rc < 0)
792 goto fail;
793
794 }
795
796 buf->vb.state = VIDEOBUF_PREPARED;
797 return 0;
798
799 fail:
800 free_buffer(vq, buf);
801 return rc;
802 }
803
804 static void
805 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
806 {
807 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
808 struct tm6000_fh *fh = vq->priv_data;
809 struct tm6000_core *dev = fh->dev;
810 struct tm6000_dmaqueue *vidq = &dev->vidq;
811
812 buf->vb.state = VIDEOBUF_QUEUED;
813 list_add_tail(&buf->vb.queue, &vidq->active);
814 }
815
816 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
817 {
818 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
819
820 free_buffer(vq, buf);
821 }
822
823 static struct videobuf_queue_ops tm6000_video_qops = {
824 .buf_setup = buffer_setup,
825 .buf_prepare = buffer_prepare,
826 .buf_queue = buffer_queue,
827 .buf_release = buffer_release,
828 };
829
830 /* ------------------------------------------------------------------
831 * IOCTL handling
832 * ------------------------------------------------------------------
833 */
834
835 static bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
836 {
837 /* Is the current fh handling it? if so, that's OK */
838 if (dev->resources == fh && dev->is_res_read)
839 return true;
840
841 return false;
842 }
843
844 static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
845 {
846 /* Is the current fh handling it? if so, that's OK */
847 if (dev->resources == fh)
848 return true;
849
850 return false;
851 }
852
853 static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
854 bool is_res_read)
855 {
856 /* Is the current fh handling it? if so, that's OK */
857 if (dev->resources == fh && dev->is_res_read == is_res_read)
858 return true;
859
860 /* is it free? */
861 if (dev->resources)
862 return false;
863
864 /* grab it */
865 dev->resources = fh;
866 dev->is_res_read = is_res_read;
867 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
868 return true;
869 }
870
871 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
872 {
873 /* Is the current fh handling it? if so, that's OK */
874 if (dev->resources != fh)
875 return;
876
877 dev->resources = NULL;
878 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
879 }
880
881 /* ------------------------------------------------------------------
882 * IOCTL vidioc handling
883 * ------------------------------------------------------------------
884 */
885 static int vidioc_querycap(struct file *file, void *priv,
886 struct v4l2_capability *cap)
887 {
888 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
889
890 strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
891 strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
892 cap->version = TM6000_VERSION;
893 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
894 V4L2_CAP_STREAMING |
895 V4L2_CAP_AUDIO |
896 V4L2_CAP_READWRITE;
897
898 if (dev->tuner_type != TUNER_ABSENT)
899 cap->capabilities |= V4L2_CAP_TUNER;
900
901 return 0;
902 }
903
904 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
905 struct v4l2_fmtdesc *f)
906 {
907 if (unlikely(f->index >= ARRAY_SIZE(format)))
908 return -EINVAL;
909
910 strlcpy(f->description, format[f->index].name, sizeof(f->description));
911 f->pixelformat = format[f->index].fourcc;
912 return 0;
913 }
914
915 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
916 struct v4l2_format *f)
917 {
918 struct tm6000_fh *fh = priv;
919
920 f->fmt.pix.width = fh->width;
921 f->fmt.pix.height = fh->height;
922 f->fmt.pix.field = fh->vb_vidq.field;
923 f->fmt.pix.pixelformat = fh->fmt->fourcc;
924 f->fmt.pix.bytesperline =
925 (f->fmt.pix.width * fh->fmt->depth) >> 3;
926 f->fmt.pix.sizeimage =
927 f->fmt.pix.height * f->fmt.pix.bytesperline;
928
929 return 0;
930 }
931
932 static struct tm6000_fmt *format_by_fourcc(unsigned int fourcc)
933 {
934 unsigned int i;
935
936 for (i = 0; i < ARRAY_SIZE(format); i++)
937 if (format[i].fourcc == fourcc)
938 return format+i;
939 return NULL;
940 }
941
942 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
943 struct v4l2_format *f)
944 {
945 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
946 struct tm6000_fmt *fmt;
947 enum v4l2_field field;
948
949 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
950 if (NULL == fmt) {
951 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
952 " invalid.\n", f->fmt.pix.pixelformat);
953 return -EINVAL;
954 }
955
956 field = f->fmt.pix.field;
957
958 if (field == V4L2_FIELD_ANY)
959 field = V4L2_FIELD_SEQ_TB;
960 else if (V4L2_FIELD_INTERLACED != field) {
961 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
962 return -EINVAL;
963 }
964
965 tm6000_get_std_res(dev);
966
967 f->fmt.pix.width = dev->width;
968 f->fmt.pix.height = dev->height;
969
970 f->fmt.pix.width &= ~0x01;
971
972 f->fmt.pix.field = field;
973
974 f->fmt.pix.bytesperline =
975 (f->fmt.pix.width * fmt->depth) >> 3;
976 f->fmt.pix.sizeimage =
977 f->fmt.pix.height * f->fmt.pix.bytesperline;
978
979 return 0;
980 }
981
982 /*FIXME: This seems to be generic enough to be at videodev2 */
983 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
984 struct v4l2_format *f)
985 {
986 struct tm6000_fh *fh = priv;
987 struct tm6000_core *dev = fh->dev;
988 int ret = vidioc_try_fmt_vid_cap(file, fh, f);
989 if (ret < 0)
990 return ret;
991
992 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
993 fh->width = f->fmt.pix.width;
994 fh->height = f->fmt.pix.height;
995 fh->vb_vidq.field = f->fmt.pix.field;
996 fh->type = f->type;
997
998 dev->fourcc = f->fmt.pix.pixelformat;
999
1000 tm6000_set_fourcc_format(dev);
1001
1002 return 0;
1003 }
1004
1005 static int vidioc_reqbufs(struct file *file, void *priv,
1006 struct v4l2_requestbuffers *p)
1007 {
1008 struct tm6000_fh *fh = priv;
1009
1010 return videobuf_reqbufs(&fh->vb_vidq, p);
1011 }
1012
1013 static int vidioc_querybuf(struct file *file, void *priv,
1014 struct v4l2_buffer *p)
1015 {
1016 struct tm6000_fh *fh = priv;
1017
1018 return videobuf_querybuf(&fh->vb_vidq, p);
1019 }
1020
1021 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1022 {
1023 struct tm6000_fh *fh = priv;
1024
1025 return videobuf_qbuf(&fh->vb_vidq, p);
1026 }
1027
1028 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1029 {
1030 struct tm6000_fh *fh = priv;
1031
1032 return videobuf_dqbuf(&fh->vb_vidq, p,
1033 file->f_flags & O_NONBLOCK);
1034 }
1035
1036 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1037 {
1038 struct tm6000_fh *fh = priv;
1039 struct tm6000_core *dev = fh->dev;
1040
1041 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1042 return -EINVAL;
1043 if (i != fh->type)
1044 return -EINVAL;
1045
1046 if (!res_get(dev, fh, false))
1047 return -EBUSY;
1048 return videobuf_streamon(&fh->vb_vidq);
1049 }
1050
1051 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1052 {
1053 struct tm6000_fh *fh = priv;
1054 struct tm6000_core *dev = fh->dev;
1055
1056 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1057 return -EINVAL;
1058 if (i != fh->type)
1059 return -EINVAL;
1060
1061 videobuf_streamoff(&fh->vb_vidq);
1062 res_free(dev, fh);
1063
1064 return 0;
1065 }
1066
1067 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1068 {
1069 int rc = 0;
1070 struct tm6000_fh *fh = priv;
1071 struct tm6000_core *dev = fh->dev;
1072
1073 dev->norm = *norm;
1074 rc = tm6000_init_analog_mode(dev);
1075
1076 fh->width = dev->width;
1077 fh->height = dev->height;
1078
1079 if (rc < 0)
1080 return rc;
1081
1082 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1083
1084 return 0;
1085 }
1086
1087 static const char *iname[] = {
1088 [TM6000_INPUT_TV] = "Television",
1089 [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1090 [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1091 [TM6000_INPUT_SVIDEO] = "S-Video",
1092 };
1093
1094 static int vidioc_enum_input(struct file *file, void *priv,
1095 struct v4l2_input *i)
1096 {
1097 struct tm6000_fh *fh = priv;
1098 struct tm6000_core *dev = fh->dev;
1099 unsigned int n;
1100
1101 n = i->index;
1102 if (n >= 3)
1103 return -EINVAL;
1104
1105 if (!dev->vinput[n].type)
1106 return -EINVAL;
1107
1108 i->index = n;
1109
1110 if (dev->vinput[n].type == TM6000_INPUT_TV)
1111 i->type = V4L2_INPUT_TYPE_TUNER;
1112 else
1113 i->type = V4L2_INPUT_TYPE_CAMERA;
1114
1115 strcpy(i->name, iname[dev->vinput[n].type]);
1116
1117 i->std = TM6000_STD;
1118
1119 return 0;
1120 }
1121
1122 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1123 {
1124 struct tm6000_fh *fh = priv;
1125 struct tm6000_core *dev = fh->dev;
1126
1127 *i = dev->input;
1128
1129 return 0;
1130 }
1131
1132 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1133 {
1134 struct tm6000_fh *fh = priv;
1135 struct tm6000_core *dev = fh->dev;
1136 int rc = 0;
1137
1138 if (i >= 3)
1139 return -EINVAL;
1140 if (!dev->vinput[i].type)
1141 return -EINVAL;
1142
1143 dev->input = i;
1144
1145 rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1146
1147 return rc;
1148 }
1149
1150 /* --- controls ---------------------------------------------- */
1151 static int vidioc_queryctrl(struct file *file, void *priv,
1152 struct v4l2_queryctrl *qc)
1153 {
1154 int i;
1155
1156 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1157 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1158 memcpy(qc, &(tm6000_qctrl[i]),
1159 sizeof(*qc));
1160 return 0;
1161 }
1162
1163 return -EINVAL;
1164 }
1165
1166 static int vidioc_g_ctrl(struct file *file, void *priv,
1167 struct v4l2_control *ctrl)
1168 {
1169 struct tm6000_fh *fh = priv;
1170 struct tm6000_core *dev = fh->dev;
1171 int val;
1172
1173 /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1174 switch (ctrl->id) {
1175 case V4L2_CID_CONTRAST:
1176 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1177 break;
1178 case V4L2_CID_BRIGHTNESS:
1179 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1180 return 0;
1181 case V4L2_CID_SATURATION:
1182 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1183 return 0;
1184 case V4L2_CID_HUE:
1185 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1186 return 0;
1187 case V4L2_CID_AUDIO_MUTE:
1188 val = dev->ctl_mute;
1189 return 0;
1190 case V4L2_CID_AUDIO_VOLUME:
1191 val = dev->ctl_volume;
1192 return 0;
1193 default:
1194 return -EINVAL;
1195 }
1196
1197 if (val < 0)
1198 return val;
1199
1200 ctrl->value = val;
1201
1202 return 0;
1203 }
1204 static int vidioc_s_ctrl(struct file *file, void *priv,
1205 struct v4l2_control *ctrl)
1206 {
1207 struct tm6000_fh *fh = priv;
1208 struct tm6000_core *dev = fh->dev;
1209 u8 val = ctrl->value;
1210
1211 switch (ctrl->id) {
1212 case V4L2_CID_CONTRAST:
1213 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1214 return 0;
1215 case V4L2_CID_BRIGHTNESS:
1216 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1217 return 0;
1218 case V4L2_CID_SATURATION:
1219 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1220 return 0;
1221 case V4L2_CID_HUE:
1222 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1223 return 0;
1224 case V4L2_CID_AUDIO_MUTE:
1225 dev->ctl_mute = val;
1226 tm6000_tvaudio_set_mute(dev, val);
1227 return 0;
1228 case V4L2_CID_AUDIO_VOLUME:
1229 dev->ctl_volume = val;
1230 tm6000_set_volume(dev, val);
1231 return 0;
1232 }
1233 return -EINVAL;
1234 }
1235
1236 static int vidioc_g_tuner(struct file *file, void *priv,
1237 struct v4l2_tuner *t)
1238 {
1239 struct tm6000_fh *fh = priv;
1240 struct tm6000_core *dev = fh->dev;
1241
1242 if (unlikely(UNSET == dev->tuner_type))
1243 return -EINVAL;
1244 if (0 != t->index)
1245 return -EINVAL;
1246
1247 strcpy(t->name, "Television");
1248 t->type = V4L2_TUNER_ANALOG_TV;
1249 t->capability = V4L2_TUNER_CAP_NORM;
1250 t->rangehigh = 0xffffffffUL;
1251 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1252
1253 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1254
1255 t->audmode = dev->amode;
1256
1257 return 0;
1258 }
1259
1260 static int vidioc_s_tuner(struct file *file, void *priv,
1261 struct v4l2_tuner *t)
1262 {
1263 struct tm6000_fh *fh = priv;
1264 struct tm6000_core *dev = fh->dev;
1265
1266 if (UNSET == dev->tuner_type)
1267 return -EINVAL;
1268 if (0 != t->index)
1269 return -EINVAL;
1270
1271 dev->amode = t->audmode;
1272 dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1273
1274 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1275
1276 return 0;
1277 }
1278
1279 static int vidioc_g_frequency(struct file *file, void *priv,
1280 struct v4l2_frequency *f)
1281 {
1282 struct tm6000_fh *fh = priv;
1283 struct tm6000_core *dev = fh->dev;
1284
1285 if (unlikely(UNSET == dev->tuner_type))
1286 return -EINVAL;
1287
1288 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1289 f->frequency = dev->freq;
1290
1291 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1292
1293 return 0;
1294 }
1295
1296 static int vidioc_s_frequency(struct file *file, void *priv,
1297 struct v4l2_frequency *f)
1298 {
1299 struct tm6000_fh *fh = priv;
1300 struct tm6000_core *dev = fh->dev;
1301
1302 if (unlikely(UNSET == dev->tuner_type))
1303 return -EINVAL;
1304 if (unlikely(f->tuner != 0))
1305 return -EINVAL;
1306 if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1307 return -EINVAL;
1308 if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1309 return -EINVAL;
1310
1311 dev->freq = f->frequency;
1312 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1313
1314 return 0;
1315 }
1316
1317 static int radio_querycap(struct file *file, void *priv,
1318 struct v4l2_capability *cap)
1319 {
1320 struct tm6000_fh *fh = file->private_data;
1321 struct tm6000_core *dev = fh->dev;
1322
1323 strcpy(cap->driver, "tm6000");
1324 strlcpy(cap->card, dev->name, sizeof(dev->name));
1325 sprintf(cap->bus_info, "USB%04x:%04x",
1326 le16_to_cpu(dev->udev->descriptor.idVendor),
1327 le16_to_cpu(dev->udev->descriptor.idProduct));
1328 cap->version = dev->dev_type;
1329 cap->capabilities = V4L2_CAP_TUNER |
1330 V4L2_CAP_AUDIO |
1331 V4L2_CAP_RADIO |
1332 V4L2_CAP_READWRITE |
1333 V4L2_CAP_STREAMING;
1334
1335 return 0;
1336 }
1337
1338 static int radio_g_tuner(struct file *file, void *priv,
1339 struct v4l2_tuner *t)
1340 {
1341 struct tm6000_fh *fh = file->private_data;
1342 struct tm6000_core *dev = fh->dev;
1343
1344 if (0 != t->index)
1345 return -EINVAL;
1346
1347 memset(t, 0, sizeof(*t));
1348 strcpy(t->name, "Radio");
1349 t->type = V4L2_TUNER_RADIO;
1350 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1351
1352 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1353
1354 return 0;
1355 }
1356
1357 static int radio_s_tuner(struct file *file, void *priv,
1358 struct v4l2_tuner *t)
1359 {
1360 struct tm6000_fh *fh = file->private_data;
1361 struct tm6000_core *dev = fh->dev;
1362
1363 if (0 != t->index)
1364 return -EINVAL;
1365
1366 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1367
1368 return 0;
1369 }
1370
1371 static int radio_enum_input(struct file *file, void *priv,
1372 struct v4l2_input *i)
1373 {
1374 struct tm6000_fh *fh = priv;
1375 struct tm6000_core *dev = fh->dev;
1376
1377 if (i->index != 0)
1378 return -EINVAL;
1379
1380 if (!dev->rinput.type)
1381 return -EINVAL;
1382
1383 strcpy(i->name, "Radio");
1384 i->type = V4L2_INPUT_TYPE_TUNER;
1385
1386 return 0;
1387 }
1388
1389 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1390 {
1391 struct tm6000_fh *fh = priv;
1392 struct tm6000_core *dev = fh->dev;
1393
1394 if (dev->input != 5)
1395 return -EINVAL;
1396
1397 *i = dev->input - 5;
1398
1399 return 0;
1400 }
1401
1402 static int radio_g_audio(struct file *file, void *priv,
1403 struct v4l2_audio *a)
1404 {
1405 memset(a, 0, sizeof(*a));
1406 strcpy(a->name, "Radio");
1407 return 0;
1408 }
1409
1410 static int radio_s_audio(struct file *file, void *priv,
1411 struct v4l2_audio *a)
1412 {
1413 return 0;
1414 }
1415
1416 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1417 {
1418 struct tm6000_fh *fh = priv;
1419 struct tm6000_core *dev = fh->dev;
1420
1421 if (i)
1422 return -EINVAL;
1423
1424 if (!dev->rinput.type)
1425 return -EINVAL;
1426
1427 dev->input = i + 5;
1428
1429 return 0;
1430 }
1431
1432 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1433 {
1434 return 0;
1435 }
1436
1437 static int radio_queryctrl(struct file *file, void *priv,
1438 struct v4l2_queryctrl *c)
1439 {
1440 const struct v4l2_queryctrl *ctrl;
1441
1442 if (c->id < V4L2_CID_BASE ||
1443 c->id >= V4L2_CID_LASTP1)
1444 return -EINVAL;
1445 if (c->id == V4L2_CID_AUDIO_MUTE) {
1446 ctrl = ctrl_by_id(c->id);
1447 *c = *ctrl;
1448 } else
1449 *c = no_ctrl;
1450
1451 return 0;
1452 }
1453
1454 /* ------------------------------------------------------------------
1455 File operations for the device
1456 ------------------------------------------------------------------*/
1457
1458 static int tm6000_open(struct file *file)
1459 {
1460 struct video_device *vdev = video_devdata(file);
1461 struct tm6000_core *dev = video_drvdata(file);
1462 struct tm6000_fh *fh;
1463 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1464 int i, rc;
1465 int radio = 0;
1466
1467 printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1468 video_device_node_name(vdev));
1469
1470 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1471 video_device_node_name(vdev));
1472
1473 switch (vdev->vfl_type) {
1474 case VFL_TYPE_GRABBER:
1475 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1476 break;
1477 case VFL_TYPE_VBI:
1478 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1479 break;
1480 case VFL_TYPE_RADIO:
1481 radio = 1;
1482 break;
1483 }
1484
1485 /* If more than one user, mutex should be added */
1486 dev->users++;
1487
1488 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1489 video_device_node_name(vdev), v4l2_type_names[type],
1490 dev->users);
1491
1492 /* allocate + initialize per filehandle data */
1493 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1494 if (NULL == fh) {
1495 dev->users--;
1496 return -ENOMEM;
1497 }
1498
1499 file->private_data = fh;
1500 fh->dev = dev;
1501 fh->radio = radio;
1502 dev->radio = radio;
1503 fh->type = type;
1504 dev->fourcc = format[0].fourcc;
1505
1506 fh->fmt = format_by_fourcc(dev->fourcc);
1507
1508 tm6000_get_std_res(dev);
1509
1510 fh->width = dev->width;
1511 fh->height = dev->height;
1512
1513 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1514 "dev->vidq=0x%08lx\n",
1515 (unsigned long)fh, (unsigned long)dev, (unsigned long)&dev->vidq);
1516 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1517 "queued=%d\n", list_empty(&dev->vidq.queued));
1518 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1519 "active=%d\n", list_empty(&dev->vidq.active));
1520
1521 /* initialize hardware on analog mode */
1522 rc = tm6000_init_analog_mode(dev);
1523 if (rc < 0)
1524 return rc;
1525
1526 if (dev->mode != TM6000_MODE_ANALOG) {
1527 /* Put all controls at a sane state */
1528 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1529 qctl_regs[i] = tm6000_qctrl[i].default_value;
1530
1531 dev->mode = TM6000_MODE_ANALOG;
1532 }
1533
1534 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1535 NULL, &dev->slock,
1536 fh->type,
1537 V4L2_FIELD_INTERLACED,
1538 sizeof(struct tm6000_buffer), fh, &dev->lock);
1539
1540 if (fh->radio) {
1541 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1542 dev->input = 5;
1543 tm6000_set_audio_rinput(dev);
1544 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1545 tm6000_prepare_isoc(dev);
1546 tm6000_start_thread(dev);
1547 }
1548
1549 return 0;
1550 }
1551
1552 static ssize_t
1553 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1554 {
1555 struct tm6000_fh *fh = file->private_data;
1556
1557 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1558 if (!res_get(fh->dev, fh, true))
1559 return -EBUSY;
1560
1561 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1562 file->f_flags & O_NONBLOCK);
1563 }
1564 return 0;
1565 }
1566
1567 static unsigned int
1568 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1569 {
1570 struct tm6000_fh *fh = file->private_data;
1571 struct tm6000_buffer *buf;
1572
1573 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1574 return POLLERR;
1575
1576 if (!!is_res_streaming(fh->dev, fh))
1577 return POLLERR;
1578
1579 if (!is_res_read(fh->dev, fh)) {
1580 /* streaming capture */
1581 if (list_empty(&fh->vb_vidq.stream))
1582 return POLLERR;
1583 buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
1584 } else {
1585 /* read() capture */
1586 return videobuf_poll_stream(file, &fh->vb_vidq,
1587 wait);
1588 }
1589 poll_wait(file, &buf->vb.done, wait);
1590 if (buf->vb.state == VIDEOBUF_DONE ||
1591 buf->vb.state == VIDEOBUF_ERROR)
1592 return POLLIN | POLLRDNORM;
1593 return 0;
1594 }
1595
1596 static int tm6000_release(struct file *file)
1597 {
1598 struct tm6000_fh *fh = file->private_data;
1599 struct tm6000_core *dev = fh->dev;
1600 struct video_device *vdev = video_devdata(file);
1601
1602 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1603 video_device_node_name(vdev), dev->users);
1604
1605 dev->users--;
1606
1607 res_free(dev, fh);
1608 if (!dev->users) {
1609 tm6000_uninit_isoc(dev);
1610 videobuf_mmap_free(&fh->vb_vidq);
1611 }
1612
1613 kfree(fh);
1614
1615 return 0;
1616 }
1617
1618 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1619 {
1620 struct tm6000_fh *fh = file->private_data;
1621 int ret;
1622
1623 ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1624
1625 return ret;
1626 }
1627
1628 static struct v4l2_file_operations tm6000_fops = {
1629 .owner = THIS_MODULE,
1630 .open = tm6000_open,
1631 .release = tm6000_release,
1632 .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1633 .read = tm6000_read,
1634 .poll = tm6000_poll,
1635 .mmap = tm6000_mmap,
1636 };
1637
1638 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1639 .vidioc_querycap = vidioc_querycap,
1640 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1641 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1642 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1643 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1644 .vidioc_s_std = vidioc_s_std,
1645 .vidioc_enum_input = vidioc_enum_input,
1646 .vidioc_g_input = vidioc_g_input,
1647 .vidioc_s_input = vidioc_s_input,
1648 .vidioc_queryctrl = vidioc_queryctrl,
1649 .vidioc_g_ctrl = vidioc_g_ctrl,
1650 .vidioc_s_ctrl = vidioc_s_ctrl,
1651 .vidioc_g_tuner = vidioc_g_tuner,
1652 .vidioc_s_tuner = vidioc_s_tuner,
1653 .vidioc_g_frequency = vidioc_g_frequency,
1654 .vidioc_s_frequency = vidioc_s_frequency,
1655 .vidioc_streamon = vidioc_streamon,
1656 .vidioc_streamoff = vidioc_streamoff,
1657 .vidioc_reqbufs = vidioc_reqbufs,
1658 .vidioc_querybuf = vidioc_querybuf,
1659 .vidioc_qbuf = vidioc_qbuf,
1660 .vidioc_dqbuf = vidioc_dqbuf,
1661 };
1662
1663 static struct video_device tm6000_template = {
1664 .name = "tm6000",
1665 .fops = &tm6000_fops,
1666 .ioctl_ops = &video_ioctl_ops,
1667 .release = video_device_release,
1668 .tvnorms = TM6000_STD,
1669 .current_norm = V4L2_STD_NTSC_M,
1670 };
1671
1672 static const struct v4l2_file_operations radio_fops = {
1673 .owner = THIS_MODULE,
1674 .open = tm6000_open,
1675 .release = tm6000_release,
1676 .unlocked_ioctl = video_ioctl2,
1677 };
1678
1679 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1680 .vidioc_querycap = radio_querycap,
1681 .vidioc_g_tuner = radio_g_tuner,
1682 .vidioc_enum_input = radio_enum_input,
1683 .vidioc_g_audio = radio_g_audio,
1684 .vidioc_s_tuner = radio_s_tuner,
1685 .vidioc_s_audio = radio_s_audio,
1686 .vidioc_s_input = radio_s_input,
1687 .vidioc_s_std = radio_s_std,
1688 .vidioc_queryctrl = radio_queryctrl,
1689 .vidioc_g_input = radio_g_input,
1690 .vidioc_g_ctrl = vidioc_g_ctrl,
1691 .vidioc_s_ctrl = vidioc_s_ctrl,
1692 .vidioc_g_frequency = vidioc_g_frequency,
1693 .vidioc_s_frequency = vidioc_s_frequency,
1694 };
1695
1696 struct video_device tm6000_radio_template = {
1697 .name = "tm6000",
1698 .fops = &radio_fops,
1699 .ioctl_ops = &radio_ioctl_ops,
1700 };
1701
1702 /* -----------------------------------------------------------------
1703 * Initialization and module stuff
1704 * ------------------------------------------------------------------
1705 */
1706
1707 static struct video_device *vdev_init(struct tm6000_core *dev,
1708 const struct video_device
1709 *template, const char *type_name)
1710 {
1711 struct video_device *vfd;
1712
1713 vfd = video_device_alloc();
1714 if (NULL == vfd)
1715 return NULL;
1716
1717 *vfd = *template;
1718 vfd->v4l2_dev = &dev->v4l2_dev;
1719 vfd->release = video_device_release;
1720 vfd->debug = tm6000_debug;
1721 vfd->lock = &dev->lock;
1722
1723 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1724
1725 video_set_drvdata(vfd, dev);
1726 return vfd;
1727 }
1728
1729 int tm6000_v4l2_register(struct tm6000_core *dev)
1730 {
1731 int ret = -1;
1732
1733 dev->vfd = vdev_init(dev, &tm6000_template, "video");
1734
1735 if (!dev->vfd) {
1736 printk(KERN_INFO "%s: can't register video device\n",
1737 dev->name);
1738 return -ENOMEM;
1739 }
1740
1741 /* init video dma queues */
1742 INIT_LIST_HEAD(&dev->vidq.active);
1743 INIT_LIST_HEAD(&dev->vidq.queued);
1744
1745 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1746
1747 if (ret < 0) {
1748 printk(KERN_INFO "%s: can't register video device\n",
1749 dev->name);
1750 return ret;
1751 }
1752
1753 printk(KERN_INFO "%s: registered device %s\n",
1754 dev->name, video_device_node_name(dev->vfd));
1755
1756 if (dev->caps.has_radio) {
1757 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1758 "radio");
1759 if (!dev->radio_dev) {
1760 printk(KERN_INFO "%s: can't register radio device\n",
1761 dev->name);
1762 return ret; /* FIXME release resource */
1763 }
1764
1765 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1766 radio_nr);
1767 if (ret < 0) {
1768 printk(KERN_INFO "%s: can't register radio device\n",
1769 dev->name);
1770 return ret; /* FIXME release resource */
1771 }
1772
1773 printk(KERN_INFO "%s: registered device %s\n",
1774 dev->name, video_device_node_name(dev->radio_dev));
1775 }
1776
1777 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1778 return ret;
1779 }
1780
1781 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1782 {
1783 video_unregister_device(dev->vfd);
1784
1785 if (dev->radio_dev) {
1786 if (video_is_registered(dev->radio_dev))
1787 video_unregister_device(dev->radio_dev);
1788 else
1789 video_device_release(dev->radio_dev);
1790 dev->radio_dev = NULL;
1791 }
1792
1793 return 0;
1794 }
1795
1796 int tm6000_v4l2_exit(void)
1797 {
1798 return 0;
1799 }
1800
1801 module_param(video_nr, int, 0);
1802 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1803
1804 module_param_named(debug, tm6000_debug, int, 0444);
1805 MODULE_PARM_DESC(debug, "activates debug info");
1806
1807 module_param(vid_limit, int, 0644);
1808 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1809
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