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dl2k: Clean up rio_ioctl
[zen-stable.git] / drivers / media / video / tm6000 / tm6000-video.c
blobbc13db736e2457e7d89575b8b7c656f3e05a8ce7
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
23 #include <linux/module.h>
24 #include <linux/delay.h>
25 #include <linux/errno.h>
26 #include <linux/fs.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/mm.h>
30 #include <linux/ioport.h>
31 #include <linux/init.h>
32 #include <linux/sched.h>
33 #include <linux/random.h>
34 #include <linux/usb.h>
35 #include <linux/videodev2.h>
36 #include <media/v4l2-ioctl.h>
37 #include <media/tuner.h>
38 #include <linux/interrupt.h>
39 #include <linux/kthread.h>
40 #include <linux/highmem.h>
41 #include <linux/freezer.h>
42
43 #include "tm6000-regs.h"
44 #include "tm6000.h"
45
46 #define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
47
48 /* Limits minimum and default number of buffers */
49 #define TM6000_MIN_BUF 4
50 #define TM6000_DEF_BUF 8
51
52 #define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
53
54 /* Declare static vars that will be used as parameters */
55 static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
56 static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
57 static int radio_nr = -1; /* /dev/radioN, -1 for autodetect */
58
59 /* Debug level */
60 int tm6000_debug;
61 EXPORT_SYMBOL_GPL(tm6000_debug);
62
63 static const struct v4l2_queryctrl no_ctrl = {
64 .name = "42",
65 .flags = V4L2_CTRL_FLAG_DISABLED,
66 };
67
68 /* supported controls */
69 static struct v4l2_queryctrl tm6000_qctrl[] = {
70 {
71 .id = V4L2_CID_BRIGHTNESS,
72 .type = V4L2_CTRL_TYPE_INTEGER,
73 .name = "Brightness",
74 .minimum = 0,
75 .maximum = 255,
76 .step = 1,
77 .default_value = 54,
78 .flags = 0,
79 }, {
80 .id = V4L2_CID_CONTRAST,
81 .type = V4L2_CTRL_TYPE_INTEGER,
82 .name = "Contrast",
83 .minimum = 0,
84 .maximum = 255,
85 .step = 0x1,
86 .default_value = 119,
87 .flags = 0,
88 }, {
89 .id = V4L2_CID_SATURATION,
90 .type = V4L2_CTRL_TYPE_INTEGER,
91 .name = "Saturation",
92 .minimum = 0,
93 .maximum = 255,
94 .step = 0x1,
95 .default_value = 112,
96 .flags = 0,
97 }, {
98 .id = V4L2_CID_HUE,
99 .type = V4L2_CTRL_TYPE_INTEGER,
100 .name = "Hue",
101 .minimum = -128,
102 .maximum = 127,
103 .step = 0x1,
104 .default_value = 0,
105 .flags = 0,
106 },
107 /* --- audio --- */
108 {
109 .id = V4L2_CID_AUDIO_MUTE,
110 .name = "Mute",
111 .minimum = 0,
112 .maximum = 1,
113 .type = V4L2_CTRL_TYPE_BOOLEAN,
114 }, {
115 .id = V4L2_CID_AUDIO_VOLUME,
116 .name = "Volume",
117 .minimum = -15,
118 .maximum = 15,
119 .step = 1,
120 .default_value = 0,
121 .type = V4L2_CTRL_TYPE_INTEGER,
122 }
123 };
124
125 static const unsigned int CTRLS = ARRAY_SIZE(tm6000_qctrl);
126 static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
127
128 static struct tm6000_fmt format[] = {
129 {
130 .name = "4:2:2, packed, YVY2",
131 .fourcc = V4L2_PIX_FMT_YUYV,
132 .depth = 16,
133 }, {
134 .name = "4:2:2, packed, UYVY",
135 .fourcc = V4L2_PIX_FMT_UYVY,
136 .depth = 16,
137 }, {
138 .name = "A/V + VBI mux packet",
139 .fourcc = V4L2_PIX_FMT_TM6000,
140 .depth = 16,
141 }
142 };
143
144 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
145 {
146 unsigned int i;
147
148 for (i = 0; i < CTRLS; i++)
149 if (tm6000_qctrl[i].id == id)
150 return tm6000_qctrl+i;
151 return NULL;
152 }
153
154 /* ------------------------------------------------------------------
155 * DMA and thread functions
156 * ------------------------------------------------------------------
157 */
158
159 #define norm_maxw(a) 720
160 #define norm_maxh(a) 576
161
162 #define norm_minw(a) norm_maxw(a)
163 #define norm_minh(a) norm_maxh(a)
164
165 /*
166 * video-buf generic routine to get the next available buffer
167 */
168 static inline void get_next_buf(struct tm6000_dmaqueue *dma_q,
169 struct tm6000_buffer **buf)
170 {
171 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
172 char *outp;
173
174 if (list_empty(&dma_q->active)) {
175 dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
176 *buf = NULL;
177 return;
178 }
179
180 *buf = list_entry(dma_q->active.next,
181 struct tm6000_buffer, vb.queue);
182
183 /* Cleans up buffer - Useful for testing for frame/URB loss */
184 outp = videobuf_to_vmalloc(&(*buf)->vb);
185
186 return;
187 }
188
189 /*
190 * Announces that a buffer were filled and request the next
191 */
192 static inline void buffer_filled(struct tm6000_core *dev,
193 struct tm6000_dmaqueue *dma_q,
194 struct tm6000_buffer *buf)
195 {
196 /* Advice that buffer was filled */
197 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
198 buf->vb.state = VIDEOBUF_DONE;
199 buf->vb.field_count++;
200 do_gettimeofday(&buf->vb.ts);
201
202 list_del(&buf->vb.queue);
203 wake_up(&buf->vb.done);
204 }
205
206 /*
207 * Identify the tm5600/6000 buffer header type and properly handles
208 */
209 static int copy_streams(u8 *data, unsigned long len,
210 struct urb *urb)
211 {
212 struct tm6000_dmaqueue *dma_q = urb->context;
213 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
214 u8 *ptr = data, *endp = data+len, c;
215 unsigned long header = 0;
216 int rc = 0;
217 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
218 struct tm6000_buffer *vbuf = NULL;
219 char *voutp = NULL;
220 unsigned int linewidth;
221
222 if (!dev->radio) {
223 /* get video buffer */
224 get_next_buf(dma_q, &vbuf);
225
226 if (!vbuf)
227 return rc;
228 voutp = videobuf_to_vmalloc(&vbuf->vb);
229
230 if (!voutp)
231 return 0;
232 }
233
234 for (ptr = data; ptr < endp;) {
235 if (!dev->isoc_ctl.cmd) {
236 /* Header */
237 if (dev->isoc_ctl.tmp_buf_len > 0) {
238 /* from last urb or packet */
239 header = dev->isoc_ctl.tmp_buf;
240 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
241 memcpy((u8 *)&header +
242 dev->isoc_ctl.tmp_buf_len,
243 ptr,
244 4 - dev->isoc_ctl.tmp_buf_len);
245 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
246 }
247 dev->isoc_ctl.tmp_buf_len = 0;
248 } else {
249 if (ptr + 3 >= endp) {
250 /* have incomplete header */
251 dev->isoc_ctl.tmp_buf_len = endp - ptr;
252 memcpy(&dev->isoc_ctl.tmp_buf, ptr,
253 dev->isoc_ctl.tmp_buf_len);
254 return rc;
255 }
256 /* Seek for sync */
257 for (; ptr < endp - 3; ptr++) {
258 if (*(ptr + 3) == 0x47)
259 break;
260 }
261 /* Get message header */
262 header = *(unsigned long *)ptr;
263 ptr += 4;
264 }
265
266 /* split the header fields */
267 c = (header >> 24) & 0xff;
268 size = ((header & 0x7e) << 1);
269 if (size > 0)
270 size -= 4;
271 block = (header >> 7) & 0xf;
272 field = (header >> 11) & 0x1;
273 line = (header >> 12) & 0x1ff;
274 cmd = (header >> 21) & 0x7;
275 /* Validates haeder fields */
276 if (size > TM6000_URB_MSG_LEN)
277 size = TM6000_URB_MSG_LEN;
278 pktsize = TM6000_URB_MSG_LEN;
279 /*
280 * calculate position in buffer and change the buffer
281 */
282 switch (cmd) {
283 case TM6000_URB_MSG_VIDEO:
284 if (!dev->radio) {
285 if ((dev->isoc_ctl.vfield != field) &&
286 (field == 1)) {
287 /*
288 * Announces that a new buffer
289 * were filled
290 */
291 buffer_filled(dev, dma_q, vbuf);
292 dprintk(dev, V4L2_DEBUG_ISOC,
293 "new buffer filled\n");
294 get_next_buf(dma_q, &vbuf);
295 if (!vbuf)
296 return rc;
297 voutp = videobuf_to_vmalloc(&vbuf->vb);
298 if (!voutp)
299 return rc;
300 memset(voutp, 0, vbuf->vb.size);
301 }
302 linewidth = vbuf->vb.width << 1;
303 pos = ((line << 1) - field - 1) *
304 linewidth + block * TM6000_URB_MSG_LEN;
305 /* Don't allow to write out of the buffer */
306 if (pos + size > vbuf->vb.size)
307 cmd = TM6000_URB_MSG_ERR;
308 dev->isoc_ctl.vfield = field;
309 }
310 break;
311 case TM6000_URB_MSG_VBI:
312 break;
313 case TM6000_URB_MSG_AUDIO:
314 case TM6000_URB_MSG_PTS:
315 size = pktsize; /* Size is always 180 bytes */
316 break;
317 }
318 } else {
319 /* Continue the last copy */
320 cmd = dev->isoc_ctl.cmd;
321 size = dev->isoc_ctl.size;
322 pos = dev->isoc_ctl.pos;
323 pktsize = dev->isoc_ctl.pktsize;
324 field = dev->isoc_ctl.field;
325 }
326 cpysize = (endp - ptr > size) ? size : endp - ptr;
327 if (cpysize) {
328 /* copy data in different buffers */
329 switch (cmd) {
330 case TM6000_URB_MSG_VIDEO:
331 /* Fills video buffer */
332 if (vbuf)
333 memcpy(&voutp[pos], ptr, cpysize);
334 break;
335 case TM6000_URB_MSG_AUDIO: {
336 int i;
337 for (i = 0; i < cpysize; i += 2)
338 swab16s((u16 *)(ptr + i));
339
340 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
341 break;
342 }
343 case TM6000_URB_MSG_VBI:
344 /* Need some code to copy vbi buffer */
345 break;
346 case TM6000_URB_MSG_PTS: {
347 /* Need some code to copy pts */
348 u32 pts;
349 pts = *(u32 *)ptr;
350 dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
351 field, pts);
352 break;
353 }
354 }
355 }
356 if (ptr + pktsize > endp) {
357 /*
358 * End of URB packet, but cmd processing is not
359 * complete. Preserve the state for a next packet
360 */
361 dev->isoc_ctl.pos = pos + cpysize;
362 dev->isoc_ctl.size = size - cpysize;
363 dev->isoc_ctl.cmd = cmd;
364 dev->isoc_ctl.field = field;
365 dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
366 ptr += endp - ptr;
367 } else {
368 dev->isoc_ctl.cmd = 0;
369 ptr += pktsize;
370 }
371 }
372 return 0;
373 }
374
375 /*
376 * Identify the tm5600/6000 buffer header type and properly handles
377 */
378 static int copy_multiplexed(u8 *ptr, unsigned long len,
379 struct urb *urb)
380 {
381 struct tm6000_dmaqueue *dma_q = urb->context;
382 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
383 unsigned int pos = dev->isoc_ctl.pos, cpysize;
384 int rc = 1;
385 struct tm6000_buffer *buf;
386 char *outp = NULL;
387
388 get_next_buf(dma_q, &buf);
389 if (buf)
390 outp = videobuf_to_vmalloc(&buf->vb);
391
392 if (!outp)
393 return 0;
394
395 while (len > 0) {
396 cpysize = min(len, buf->vb.size-pos);
397 memcpy(&outp[pos], ptr, cpysize);
398 pos += cpysize;
399 ptr += cpysize;
400 len -= cpysize;
401 if (pos >= buf->vb.size) {
402 pos = 0;
403 /* Announces that a new buffer were filled */
404 buffer_filled(dev, dma_q, buf);
405 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
406 get_next_buf(dma_q, &buf);
407 if (!buf)
408 break;
409 outp = videobuf_to_vmalloc(&(buf->vb));
410 if (!outp)
411 return rc;
412 pos = 0;
413 }
414 }
415
416 dev->isoc_ctl.pos = pos;
417 return rc;
418 }
419
420 static inline void print_err_status(struct tm6000_core *dev,
421 int packet, int status)
422 {
423 char *errmsg = "Unknown";
424
425 switch (status) {
426 case -ENOENT:
427 errmsg = "unlinked synchronuously";
428 break;
429 case -ECONNRESET:
430 errmsg = "unlinked asynchronuously";
431 break;
432 case -ENOSR:
433 errmsg = "Buffer error (overrun)";
434 break;
435 case -EPIPE:
436 errmsg = "Stalled (device not responding)";
437 break;
438 case -EOVERFLOW:
439 errmsg = "Babble (bad cable?)";
440 break;
441 case -EPROTO:
442 errmsg = "Bit-stuff error (bad cable?)";
443 break;
444 case -EILSEQ:
445 errmsg = "CRC/Timeout (could be anything)";
446 break;
447 case -ETIME:
448 errmsg = "Device does not respond";
449 break;
450 }
451 if (packet < 0) {
452 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
453 status, errmsg);
454 } else {
455 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
456 packet, status, errmsg);
457 }
458 }
459
460
461 /*
462 * Controls the isoc copy of each urb packet
463 */
464 static inline int tm6000_isoc_copy(struct urb *urb)
465 {
466 struct tm6000_dmaqueue *dma_q = urb->context;
467 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
468 int i, len = 0, rc = 1, status;
469 char *p;
470
471 if (urb->status < 0) {
472 print_err_status(dev, -1, urb->status);
473 return 0;
474 }
475
476 for (i = 0; i < urb->number_of_packets; i++) {
477 status = urb->iso_frame_desc[i].status;
478
479 if (status < 0) {
480 print_err_status(dev, i, status);
481 continue;
482 }
483
484 len = urb->iso_frame_desc[i].actual_length;
485
486 if (len > 0) {
487 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
488 if (!urb->iso_frame_desc[i].status) {
489 if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
490 rc = copy_multiplexed(p, len, urb);
491 if (rc <= 0)
492 return rc;
493 } else {
494 copy_streams(p, len, urb);
495 }
496 }
497 }
498 }
499 return rc;
500 }
501
502 /* ------------------------------------------------------------------
503 * URB control
504 * ------------------------------------------------------------------
505 */
506
507 /*
508 * IRQ callback, called by URB callback
509 */
510 static void tm6000_irq_callback(struct urb *urb)
511 {
512 struct tm6000_dmaqueue *dma_q = urb->context;
513 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
514 int i;
515
516 switch (urb->status) {
517 case 0:
518 case -ETIMEDOUT:
519 break;
520
521 case -ECONNRESET:
522 case -ENOENT:
523 case -ESHUTDOWN:
524 return;
525
526 default:
527 tm6000_err("urb completion error %d.\n", urb->status);
528 break;
529 }
530
531 spin_lock(&dev->slock);
532 tm6000_isoc_copy(urb);
533 spin_unlock(&dev->slock);
534
535 /* Reset urb buffers */
536 for (i = 0; i < urb->number_of_packets; i++) {
537 urb->iso_frame_desc[i].status = 0;
538 urb->iso_frame_desc[i].actual_length = 0;
539 }
540
541 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
542 if (urb->status)
543 tm6000_err("urb resubmit failed (error=%i)\n",
544 urb->status);
545 }
546
547 /*
548 * Stop and Deallocate URBs
549 */
550 static void tm6000_uninit_isoc(struct tm6000_core *dev)
551 {
552 struct urb *urb;
553 int i;
554
555 dev->isoc_ctl.buf = NULL;
556 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
557 urb = dev->isoc_ctl.urb[i];
558 if (urb) {
559 usb_kill_urb(urb);
560 usb_unlink_urb(urb);
561 if (dev->isoc_ctl.transfer_buffer[i]) {
562 usb_free_coherent(dev->udev,
563 urb->transfer_buffer_length,
564 dev->isoc_ctl.transfer_buffer[i],
565 urb->transfer_dma);
566 }
567 usb_free_urb(urb);
568 dev->isoc_ctl.urb[i] = NULL;
569 }
570 dev->isoc_ctl.transfer_buffer[i] = NULL;
571 }
572
573 kfree(dev->isoc_ctl.urb);
574 kfree(dev->isoc_ctl.transfer_buffer);
575
576 dev->isoc_ctl.urb = NULL;
577 dev->isoc_ctl.transfer_buffer = NULL;
578 dev->isoc_ctl.num_bufs = 0;
579 }
580
581 /*
582 * Allocate URBs and start IRQ
583 */
584 static int tm6000_prepare_isoc(struct tm6000_core *dev)
585 {
586 struct tm6000_dmaqueue *dma_q = &dev->vidq;
587 int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
588 struct urb *urb;
589
590 /* De-allocates all pending stuff */
591 tm6000_uninit_isoc(dev);
592 /* Stop interrupt USB pipe */
593 tm6000_ir_int_stop(dev);
594
595 usb_set_interface(dev->udev,
596 dev->isoc_in.bInterfaceNumber,
597 dev->isoc_in.bAlternateSetting);
598
599 /* Start interrupt USB pipe */
600 tm6000_ir_int_start(dev);
601
602 pipe = usb_rcvisocpipe(dev->udev,
603 dev->isoc_in.endp->desc.bEndpointAddress &
604 USB_ENDPOINT_NUMBER_MASK);
605
606 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
607
608 if (size > dev->isoc_in.maxsize)
609 size = dev->isoc_in.maxsize;
610
611 dev->isoc_ctl.max_pkt_size = size;
612
613 max_packets = TM6000_MAX_ISO_PACKETS;
614 sb_size = max_packets * size;
615
616 dev->isoc_ctl.num_bufs = num_bufs;
617
618 dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
619 if (!dev->isoc_ctl.urb) {
620 tm6000_err("cannot alloc memory for usb buffers\n");
621 return -ENOMEM;
622 }
623
624 dev->isoc_ctl.transfer_buffer = kmalloc(sizeof(void *)*num_bufs,
625 GFP_KERNEL);
626 if (!dev->isoc_ctl.transfer_buffer) {
627 tm6000_err("cannot allocate memory for usbtransfer\n");
628 kfree(dev->isoc_ctl.urb);
629 return -ENOMEM;
630 }
631
632 dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d x %d packets"
633 " (%d bytes) of %d bytes each to handle %u size\n",
634 max_packets, num_bufs, sb_size,
635 dev->isoc_in.maxsize, size);
636
637 /* allocate urbs and transfer buffers */
638 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
639 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
640 if (!urb) {
641 tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
642 tm6000_uninit_isoc(dev);
643 usb_free_urb(urb);
644 return -ENOMEM;
645 }
646 dev->isoc_ctl.urb[i] = urb;
647
648 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
649 sb_size, GFP_KERNEL, &urb->transfer_dma);
650 if (!dev->isoc_ctl.transfer_buffer[i]) {
651 tm6000_err("unable to allocate %i bytes for transfer"
652 " buffer %i%s\n",
653 sb_size, i,
654 in_interrupt() ? " while in int" : "");
655 tm6000_uninit_isoc(dev);
656 return -ENOMEM;
657 }
658 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
659
660 usb_fill_bulk_urb(urb, dev->udev, pipe,
661 dev->isoc_ctl.transfer_buffer[i], sb_size,
662 tm6000_irq_callback, dma_q);
663 urb->interval = dev->isoc_in.endp->desc.bInterval;
664 urb->number_of_packets = max_packets;
665 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
666
667 for (j = 0; j < max_packets; j++) {
668 urb->iso_frame_desc[j].offset = size * j;
669 urb->iso_frame_desc[j].length = size;
670 }
671 }
672
673 return 0;
674 }
675
676 static int tm6000_start_thread(struct tm6000_core *dev)
677 {
678 struct tm6000_dmaqueue *dma_q = &dev->vidq;
679 int i;
680
681 dma_q->frame = 0;
682 dma_q->ini_jiffies = jiffies;
683
684 init_waitqueue_head(&dma_q->wq);
685
686 /* submit urbs and enables IRQ */
687 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
688 int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
689 if (rc) {
690 tm6000_err("submit of urb %i failed (error=%i)\n", i,
691 rc);
692 tm6000_uninit_isoc(dev);
693 return rc;
694 }
695 }
696
697 return 0;
698 }
699
700 /* ------------------------------------------------------------------
701 * Videobuf operations
702 * ------------------------------------------------------------------
703 */
704
705 static int
706 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
707 {
708 struct tm6000_fh *fh = vq->priv_data;
709
710 *size = fh->fmt->depth * fh->width * fh->height >> 3;
711 if (0 == *count)
712 *count = TM6000_DEF_BUF;
713
714 if (*count < TM6000_MIN_BUF)
715 *count = TM6000_MIN_BUF;
716
717 while (*size * *count > vid_limit * 1024 * 1024)
718 (*count)--;
719
720 return 0;
721 }
722
723 static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
724 {
725 struct tm6000_fh *fh = vq->priv_data;
726 struct tm6000_core *dev = fh->dev;
727 unsigned long flags;
728
729 if (in_interrupt())
730 BUG();
731
732 /* We used to wait for the buffer to finish here, but this didn't work
733 because, as we were keeping the state as VIDEOBUF_QUEUED,
734 videobuf_queue_cancel marked it as finished for us.
735 (Also, it could wedge forever if the hardware was misconfigured.)
736
737 This should be safe; by the time we get here, the buffer isn't
738 queued anymore. If we ever start marking the buffers as
739 VIDEOBUF_ACTIVE, it won't be, though.
740 */
741 spin_lock_irqsave(&dev->slock, flags);
742 if (dev->isoc_ctl.buf == buf)
743 dev->isoc_ctl.buf = NULL;
744 spin_unlock_irqrestore(&dev->slock, flags);
745
746 videobuf_vmalloc_free(&buf->vb);
747 buf->vb.state = VIDEOBUF_NEEDS_INIT;
748 }
749
750 static int
751 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
752 enum v4l2_field field)
753 {
754 struct tm6000_fh *fh = vq->priv_data;
755 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
756 struct tm6000_core *dev = fh->dev;
757 int rc = 0;
758
759 BUG_ON(NULL == fh->fmt);
760
761
762 /* FIXME: It assumes depth=2 */
763 /* The only currently supported format is 16 bits/pixel */
764 buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
765 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
766 return -EINVAL;
767
768 if (buf->fmt != fh->fmt ||
769 buf->vb.width != fh->width ||
770 buf->vb.height != fh->height ||
771 buf->vb.field != field) {
772 buf->fmt = fh->fmt;
773 buf->vb.width = fh->width;
774 buf->vb.height = fh->height;
775 buf->vb.field = field;
776 buf->vb.state = VIDEOBUF_NEEDS_INIT;
777 }
778
779 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
780 rc = videobuf_iolock(vq, &buf->vb, NULL);
781 if (rc != 0)
782 goto fail;
783 }
784
785 if (!dev->isoc_ctl.num_bufs) {
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
1059 if (i != fh->type)
1060 return -EINVAL;
1061
1062 videobuf_streamoff(&fh->vb_vidq);
1063 res_free(dev, fh);
1064
1065 return 0;
1066 }
1067
1068 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1069 {
1070 int rc = 0;
1071 struct tm6000_fh *fh = priv;
1072 struct tm6000_core *dev = fh->dev;
1073
1074 dev->norm = *norm;
1075 rc = tm6000_init_analog_mode(dev);
1076
1077 fh->width = dev->width;
1078 fh->height = dev->height;
1079
1080 if (rc < 0)
1081 return rc;
1082
1083 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1084
1085 return 0;
1086 }
1087
1088 static const char *iname[] = {
1089 [TM6000_INPUT_TV] = "Television",
1090 [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1091 [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1092 [TM6000_INPUT_SVIDEO] = "S-Video",
1093 };
1094
1095 static int vidioc_enum_input(struct file *file, void *priv,
1096 struct v4l2_input *i)
1097 {
1098 struct tm6000_fh *fh = priv;
1099 struct tm6000_core *dev = fh->dev;
1100 unsigned int n;
1101
1102 n = i->index;
1103 if (n >= 3)
1104 return -EINVAL;
1105
1106 if (!dev->vinput[n].type)
1107 return -EINVAL;
1108
1109 i->index = n;
1110
1111 if (dev->vinput[n].type == TM6000_INPUT_TV)
1112 i->type = V4L2_INPUT_TYPE_TUNER;
1113 else
1114 i->type = V4L2_INPUT_TYPE_CAMERA;
1115
1116 strcpy(i->name, iname[dev->vinput[n].type]);
1117
1118 i->std = TM6000_STD;
1119
1120 return 0;
1121 }
1122
1123 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1124 {
1125 struct tm6000_fh *fh = priv;
1126 struct tm6000_core *dev = fh->dev;
1127
1128 *i = dev->input;
1129
1130 return 0;
1131 }
1132
1133 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1134 {
1135 struct tm6000_fh *fh = priv;
1136 struct tm6000_core *dev = fh->dev;
1137 int rc = 0;
1138
1139 if (i >= 3)
1140 return -EINVAL;
1141 if (!dev->vinput[i].type)
1142 return -EINVAL;
1143
1144 dev->input = i;
1145
1146 rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1147
1148 return rc;
1149 }
1150
1151 /* --- controls ---------------------------------------------- */
1152 static int vidioc_queryctrl(struct file *file, void *priv,
1153 struct v4l2_queryctrl *qc)
1154 {
1155 int i;
1156
1157 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1158 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1159 memcpy(qc, &(tm6000_qctrl[i]),
1160 sizeof(*qc));
1161 return 0;
1162 }
1163
1164 return -EINVAL;
1165 }
1166
1167 static int vidioc_g_ctrl(struct file *file, void *priv,
1168 struct v4l2_control *ctrl)
1169 {
1170 struct tm6000_fh *fh = priv;
1171 struct tm6000_core *dev = fh->dev;
1172 int val;
1173
1174 /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1175 switch (ctrl->id) {
1176 case V4L2_CID_CONTRAST:
1177 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1178 break;
1179 case V4L2_CID_BRIGHTNESS:
1180 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1181 return 0;
1182 case V4L2_CID_SATURATION:
1183 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1184 return 0;
1185 case V4L2_CID_HUE:
1186 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1187 return 0;
1188 case V4L2_CID_AUDIO_MUTE:
1189 val = dev->ctl_mute;
1190 return 0;
1191 case V4L2_CID_AUDIO_VOLUME:
1192 val = dev->ctl_volume;
1193 return 0;
1194 default:
1195 return -EINVAL;
1196 }
1197
1198 if (val < 0)
1199 return val;
1200
1201 ctrl->value = val;
1202
1203 return 0;
1204 }
1205 static int vidioc_s_ctrl(struct file *file, void *priv,
1206 struct v4l2_control *ctrl)
1207 {
1208 struct tm6000_fh *fh = priv;
1209 struct tm6000_core *dev = fh->dev;
1210 u8 val = ctrl->value;
1211
1212 switch (ctrl->id) {
1213 case V4L2_CID_CONTRAST:
1214 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1215 return 0;
1216 case V4L2_CID_BRIGHTNESS:
1217 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1218 return 0;
1219 case V4L2_CID_SATURATION:
1220 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1221 return 0;
1222 case V4L2_CID_HUE:
1223 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1224 return 0;
1225 case V4L2_CID_AUDIO_MUTE:
1226 dev->ctl_mute = val;
1227 tm6000_tvaudio_set_mute(dev, val);
1228 return 0;
1229 case V4L2_CID_AUDIO_VOLUME:
1230 dev->ctl_volume = val;
1231 tm6000_set_volume(dev, val);
1232 return 0;
1233 }
1234 return -EINVAL;
1235 }
1236
1237 static 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_STEREO;
1253
1254 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1255
1256 t->audmode = dev->amode;
1257
1258 return 0;
1259 }
1260
1261 static int vidioc_s_tuner(struct file *file, void *priv,
1262 struct v4l2_tuner *t)
1263 {
1264 struct tm6000_fh *fh = priv;
1265 struct tm6000_core *dev = fh->dev;
1266
1267 if (UNSET == dev->tuner_type)
1268 return -EINVAL;
1269 if (0 != t->index)
1270 return -EINVAL;
1271
1272 dev->amode = t->audmode;
1273 dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1274
1275 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1276
1277 return 0;
1278 }
1279
1280 static int vidioc_g_frequency(struct file *file, void *priv,
1281 struct v4l2_frequency *f)
1282 {
1283 struct tm6000_fh *fh = priv;
1284 struct tm6000_core *dev = fh->dev;
1285
1286 if (unlikely(UNSET == dev->tuner_type))
1287 return -EINVAL;
1288
1289 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1290 f->frequency = dev->freq;
1291
1292 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1293
1294 return 0;
1295 }
1296
1297 static int vidioc_s_frequency(struct file *file, void *priv,
1298 struct v4l2_frequency *f)
1299 {
1300 struct tm6000_fh *fh = priv;
1301 struct tm6000_core *dev = fh->dev;
1302
1303 if (unlikely(UNSET == dev->tuner_type))
1304 return -EINVAL;
1305 if (unlikely(f->tuner != 0))
1306 return -EINVAL;
1307 if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1308 return -EINVAL;
1309 if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1310 return -EINVAL;
1311
1312 dev->freq = f->frequency;
1313 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1314
1315 return 0;
1316 }
1317
1318 static int radio_querycap(struct file *file, void *priv,
1319 struct v4l2_capability *cap)
1320 {
1321 struct tm6000_fh *fh = file->private_data;
1322 struct tm6000_core *dev = fh->dev;
1323
1324 strcpy(cap->driver, "tm6000");
1325 strlcpy(cap->card, dev->name, sizeof(dev->name));
1326 sprintf(cap->bus_info, "USB%04x:%04x",
1327 le16_to_cpu(dev->udev->descriptor.idVendor),
1328 le16_to_cpu(dev->udev->descriptor.idProduct));
1329 cap->version = dev->dev_type;
1330 cap->capabilities = V4L2_CAP_TUNER |
1331 V4L2_CAP_AUDIO |
1332 V4L2_CAP_RADIO |
1333 V4L2_CAP_READWRITE |
1334 V4L2_CAP_STREAMING;
1335
1336 return 0;
1337 }
1338
1339 static int radio_g_tuner(struct file *file, void *priv,
1340 struct v4l2_tuner *t)
1341 {
1342 struct tm6000_fh *fh = file->private_data;
1343 struct tm6000_core *dev = fh->dev;
1344
1345 if (0 != t->index)
1346 return -EINVAL;
1347
1348 memset(t, 0, sizeof(*t));
1349 strcpy(t->name, "Radio");
1350 t->type = V4L2_TUNER_RADIO;
1351 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1352
1353 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1354
1355 return 0;
1356 }
1357
1358 static int radio_s_tuner(struct file *file, void *priv,
1359 struct v4l2_tuner *t)
1360 {
1361 struct tm6000_fh *fh = file->private_data;
1362 struct tm6000_core *dev = fh->dev;
1363
1364 if (0 != t->index)
1365 return -EINVAL;
1366
1367 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1368
1369 return 0;
1370 }
1371
1372 static int radio_enum_input(struct file *file, void *priv,
1373 struct v4l2_input *i)
1374 {
1375 struct tm6000_fh *fh = priv;
1376 struct tm6000_core *dev = fh->dev;
1377
1378 if (i->index != 0)
1379 return -EINVAL;
1380
1381 if (!dev->rinput.type)
1382 return -EINVAL;
1383
1384 strcpy(i->name, "Radio");
1385 i->type = V4L2_INPUT_TYPE_TUNER;
1386
1387 return 0;
1388 }
1389
1390 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1391 {
1392 struct tm6000_fh *fh = priv;
1393 struct tm6000_core *dev = fh->dev;
1394
1395 if (dev->input != 5)
1396 return -EINVAL;
1397
1398 *i = dev->input - 5;
1399
1400 return 0;
1401 }
1402
1403 static int radio_g_audio(struct file *file, void *priv,
1404 struct v4l2_audio *a)
1405 {
1406 memset(a, 0, sizeof(*a));
1407 strcpy(a->name, "Radio");
1408 return 0;
1409 }
1410
1411 static int radio_s_audio(struct file *file, void *priv,
1412 struct v4l2_audio *a)
1413 {
1414 return 0;
1415 }
1416
1417 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1418 {
1419 struct tm6000_fh *fh = priv;
1420 struct tm6000_core *dev = fh->dev;
1421
1422 if (i)
1423 return -EINVAL;
1424
1425 if (!dev->rinput.type)
1426 return -EINVAL;
1427
1428 dev->input = i + 5;
1429
1430 return 0;
1431 }
1432
1433 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1434 {
1435 return 0;
1436 }
1437
1438 static int radio_queryctrl(struct file *file, void *priv,
1439 struct v4l2_queryctrl *c)
1440 {
1441 const struct v4l2_queryctrl *ctrl;
1442
1443 if (c->id < V4L2_CID_BASE ||
1444 c->id >= V4L2_CID_LASTP1)
1445 return -EINVAL;
1446 if (c->id == V4L2_CID_AUDIO_MUTE) {
1447 ctrl = ctrl_by_id(c->id);
1448 *c = *ctrl;
1449 } else
1450 *c = no_ctrl;
1451
1452 return 0;
1453 }
1454
1455 /* ------------------------------------------------------------------
1456 File operations for the device
1457 ------------------------------------------------------------------*/
1458
1459 static int tm6000_open(struct file *file)
1460 {
1461 struct video_device *vdev = video_devdata(file);
1462 struct tm6000_core *dev = video_drvdata(file);
1463 struct tm6000_fh *fh;
1464 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1465 int i, rc;
1466 int radio = 0;
1467
1468 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1469 video_device_node_name(vdev));
1470
1471 switch (vdev->vfl_type) {
1472 case VFL_TYPE_GRABBER:
1473 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1474 break;
1475 case VFL_TYPE_VBI:
1476 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1477 break;
1478 case VFL_TYPE_RADIO:
1479 radio = 1;
1480 break;
1481 }
1482
1483 /* If more than one user, mutex should be added */
1484 dev->users++;
1485
1486 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1487 video_device_node_name(vdev), v4l2_type_names[type],
1488 dev->users);
1489
1490 /* allocate + initialize per filehandle data */
1491 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1492 if (NULL == fh) {
1493 dev->users--;
1494 return -ENOMEM;
1495 }
1496
1497 file->private_data = fh;
1498 fh->dev = dev;
1499 fh->radio = radio;
1500 dev->radio = radio;
1501 fh->type = type;
1502 dev->fourcc = format[0].fourcc;
1503
1504 fh->fmt = format_by_fourcc(dev->fourcc);
1505
1506 tm6000_get_std_res(dev);
1507
1508 fh->width = dev->width;
1509 fh->height = dev->height;
1510
1511 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1512 "dev->vidq=0x%08lx\n",
1513 (unsigned long)fh, (unsigned long)dev,
1514 (unsigned long)&dev->vidq);
1515 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1516 "queued=%d\n", list_empty(&dev->vidq.queued));
1517 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1518 "active=%d\n", list_empty(&dev->vidq.active));
1519
1520 /* initialize hardware on analog mode */
1521 rc = tm6000_init_analog_mode(dev);
1522 if (rc < 0)
1523 return rc;
1524
1525 if (dev->mode != TM6000_MODE_ANALOG) {
1526 /* Put all controls at a sane state */
1527 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1528 qctl_regs[i] = tm6000_qctrl[i].default_value;
1529
1530 dev->mode = TM6000_MODE_ANALOG;
1531 }
1532
1533 if (!fh->radio) {
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 } else {
1540 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1541 dev->input = 5;
1542 tm6000_set_audio_rinput(dev);
1543 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1544 tm6000_prepare_isoc(dev);
1545 tm6000_start_thread(dev);
1546 }
1547
1548 return 0;
1549 }
1550
1551 static ssize_t
1552 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1553 {
1554 struct tm6000_fh *fh = file->private_data;
1555
1556 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1557 if (!res_get(fh->dev, fh, true))
1558 return -EBUSY;
1559
1560 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1561 file->f_flags & O_NONBLOCK);
1562 }
1563 return 0;
1564 }
1565
1566 static unsigned int
1567 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1568 {
1569 struct tm6000_fh *fh = file->private_data;
1570 struct tm6000_buffer *buf;
1571
1572 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1573 return POLLERR;
1574
1575 if (!!is_res_streaming(fh->dev, fh))
1576 return POLLERR;
1577
1578 if (!is_res_read(fh->dev, fh)) {
1579 /* streaming capture */
1580 if (list_empty(&fh->vb_vidq.stream))
1581 return POLLERR;
1582 buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
1583 } else {
1584 /* read() capture */
1585 return videobuf_poll_stream(file, &fh->vb_vidq, wait);
1586 }
1587 poll_wait(file, &buf->vb.done, wait);
1588 if (buf->vb.state == VIDEOBUF_DONE ||
1589 buf->vb.state == VIDEOBUF_ERROR)
1590 return POLLIN | POLLRDNORM;
1591 return 0;
1592 }
1593
1594 static int tm6000_release(struct file *file)
1595 {
1596 struct tm6000_fh *fh = file->private_data;
1597 struct tm6000_core *dev = fh->dev;
1598 struct video_device *vdev = video_devdata(file);
1599
1600 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1601 video_device_node_name(vdev), dev->users);
1602
1603 dev->users--;
1604
1605 res_free(dev, fh);
1606
1607 if (!dev->users) {
1608 tm6000_uninit_isoc(dev);
1609
1610 /* Stop interrupt USB pipe */
1611 tm6000_ir_int_stop(dev);
1612
1613 usb_reset_configuration(dev->udev);
1614
1615 if (dev->int_in.endp)
1616 usb_set_interface(dev->udev,
1617 dev->isoc_in.bInterfaceNumber, 2);
1618 else
1619 usb_set_interface(dev->udev,
1620 dev->isoc_in.bInterfaceNumber, 0);
1621
1622 /* Start interrupt USB pipe */
1623 tm6000_ir_int_start(dev);
1624
1625 if (!fh->radio)
1626 videobuf_mmap_free(&fh->vb_vidq);
1627 }
1628
1629 kfree(fh);
1630
1631 return 0;
1632 }
1633
1634 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1635 {
1636 struct tm6000_fh *fh = file->private_data;
1637
1638 return videobuf_mmap_mapper(&fh->vb_vidq, vma);
1639 }
1640
1641 static struct v4l2_file_operations tm6000_fops = {
1642 .owner = THIS_MODULE,
1643 .open = tm6000_open,
1644 .release = tm6000_release,
1645 .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1646 .read = tm6000_read,
1647 .poll = tm6000_poll,
1648 .mmap = tm6000_mmap,
1649 };
1650
1651 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1652 .vidioc_querycap = vidioc_querycap,
1653 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1654 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1655 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1656 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1657 .vidioc_s_std = vidioc_s_std,
1658 .vidioc_enum_input = vidioc_enum_input,
1659 .vidioc_g_input = vidioc_g_input,
1660 .vidioc_s_input = vidioc_s_input,
1661 .vidioc_queryctrl = vidioc_queryctrl,
1662 .vidioc_g_ctrl = vidioc_g_ctrl,
1663 .vidioc_s_ctrl = vidioc_s_ctrl,
1664 .vidioc_g_tuner = vidioc_g_tuner,
1665 .vidioc_s_tuner = vidioc_s_tuner,
1666 .vidioc_g_frequency = vidioc_g_frequency,
1667 .vidioc_s_frequency = vidioc_s_frequency,
1668 .vidioc_streamon = vidioc_streamon,
1669 .vidioc_streamoff = vidioc_streamoff,
1670 .vidioc_reqbufs = vidioc_reqbufs,
1671 .vidioc_querybuf = vidioc_querybuf,
1672 .vidioc_qbuf = vidioc_qbuf,
1673 .vidioc_dqbuf = vidioc_dqbuf,
1674 };
1675
1676 static struct video_device tm6000_template = {
1677 .name = "tm6000",
1678 .fops = &tm6000_fops,
1679 .ioctl_ops = &video_ioctl_ops,
1680 .release = video_device_release,
1681 .tvnorms = TM6000_STD,
1682 .current_norm = V4L2_STD_NTSC_M,
1683 };
1684
1685 static const struct v4l2_file_operations radio_fops = {
1686 .owner = THIS_MODULE,
1687 .open = tm6000_open,
1688 .release = tm6000_release,
1689 .unlocked_ioctl = video_ioctl2,
1690 };
1691
1692 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1693 .vidioc_querycap = radio_querycap,
1694 .vidioc_g_tuner = radio_g_tuner,
1695 .vidioc_enum_input = radio_enum_input,
1696 .vidioc_g_audio = radio_g_audio,
1697 .vidioc_s_tuner = radio_s_tuner,
1698 .vidioc_s_audio = radio_s_audio,
1699 .vidioc_s_input = radio_s_input,
1700 .vidioc_s_std = radio_s_std,
1701 .vidioc_queryctrl = radio_queryctrl,
1702 .vidioc_g_input = radio_g_input,
1703 .vidioc_g_ctrl = vidioc_g_ctrl,
1704 .vidioc_s_ctrl = vidioc_s_ctrl,
1705 .vidioc_g_frequency = vidioc_g_frequency,
1706 .vidioc_s_frequency = vidioc_s_frequency,
1707 };
1708
1709 static struct video_device tm6000_radio_template = {
1710 .name = "tm6000",
1711 .fops = &radio_fops,
1712 .ioctl_ops = &radio_ioctl_ops,
1713 };
1714
1715 /* -----------------------------------------------------------------
1716 * Initialization and module stuff
1717 * ------------------------------------------------------------------
1718 */
1719
1720 static struct video_device *vdev_init(struct tm6000_core *dev,
1721 const struct video_device
1722 *template, const char *type_name)
1723 {
1724 struct video_device *vfd;
1725
1726 vfd = video_device_alloc();
1727 if (NULL == vfd)
1728 return NULL;
1729
1730 *vfd = *template;
1731 vfd->v4l2_dev = &dev->v4l2_dev;
1732 vfd->release = video_device_release;
1733 vfd->debug = tm6000_debug;
1734 vfd->lock = &dev->lock;
1735
1736 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1737
1738 video_set_drvdata(vfd, dev);
1739 return vfd;
1740 }
1741
1742 int tm6000_v4l2_register(struct tm6000_core *dev)
1743 {
1744 int ret = -1;
1745
1746 dev->vfd = vdev_init(dev, &tm6000_template, "video");
1747
1748 if (!dev->vfd) {
1749 printk(KERN_INFO "%s: can't register video device\n",
1750 dev->name);
1751 return -ENOMEM;
1752 }
1753
1754 /* init video dma queues */
1755 INIT_LIST_HEAD(&dev->vidq.active);
1756 INIT_LIST_HEAD(&dev->vidq.queued);
1757
1758 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1759
1760 if (ret < 0) {
1761 printk(KERN_INFO "%s: can't register video device\n",
1762 dev->name);
1763 return ret;
1764 }
1765
1766 printk(KERN_INFO "%s: registered device %s\n",
1767 dev->name, video_device_node_name(dev->vfd));
1768
1769 if (dev->caps.has_radio) {
1770 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1771 "radio");
1772 if (!dev->radio_dev) {
1773 printk(KERN_INFO "%s: can't register radio device\n",
1774 dev->name);
1775 return ret; /* FIXME release resource */
1776 }
1777
1778 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1779 radio_nr);
1780 if (ret < 0) {
1781 printk(KERN_INFO "%s: can't register radio device\n",
1782 dev->name);
1783 return ret; /* FIXME release resource */
1784 }
1785
1786 printk(KERN_INFO "%s: registered device %s\n",
1787 dev->name, video_device_node_name(dev->radio_dev));
1788 }
1789
1790 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1791 return ret;
1792 }
1793
1794 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1795 {
1796 video_unregister_device(dev->vfd);
1797
1798 if (dev->radio_dev) {
1799 if (video_is_registered(dev->radio_dev))
1800 video_unregister_device(dev->radio_dev);
1801 else
1802 video_device_release(dev->radio_dev);
1803 dev->radio_dev = NULL;
1804 }
1805
1806 return 0;
1807 }
1808
1809 int tm6000_v4l2_exit(void)
1810 {
1811 return 0;
1812 }
1813
1814 module_param(video_nr, int, 0);
1815 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1816
1817 module_param_named(debug, tm6000_debug, int, 0444);
1818 MODULE_PARM_DESC(debug, "activates debug info");
1819
1820 module_param(vid_limit, int, 0644);
1821 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1822