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ARM: cpu topology: Add debugfs interface for cpu_power
[cmplus.git] / drivers / staging / tm6000 / tm6000-video.c
blob4264064a727e4001e837b77a0a1ae3752b3f6f4b
1 /*
2 * tm6000-video.c - driver for TM5600/TM6000/TM6010 USB video capture devices
3 *
4 * Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
5 *
6 * Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
7 * - Fixed module load/unload
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation version 2
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/errno.h>
25 #include <linux/fs.h>
26 #include <linux/kernel.h>
27 #include <linux/slab.h>
28 #include <linux/mm.h>
29 #include <linux/ioport.h>
30 #include <linux/init.h>
31 #include <linux/sched.h>
32 #include <linux/random.h>
33 #include <linux/version.h>
34 #include <linux/usb.h>
35 #include <linux/videodev2.h>
36 #include <media/v4l2-ioctl.h>
37 #include <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 if (!buf)
184 return;
185
186 /* Cleans up buffer - Useful for testing for frame/URB loss */
187 outp = videobuf_to_vmalloc(&(*buf)->vb);
188
189 return;
190 }
191
192 /*
193 * Announces that a buffer were filled and request the next
194 */
195 static inline void buffer_filled(struct tm6000_core *dev,
196 struct tm6000_dmaqueue *dma_q,
197 struct tm6000_buffer *buf)
198 {
199 /* Advice that buffer was filled */
200 dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
201 buf->vb.state = VIDEOBUF_DONE;
202 buf->vb.field_count++;
203 do_gettimeofday(&buf->vb.ts);
204
205 list_del(&buf->vb.queue);
206 wake_up(&buf->vb.done);
207 }
208
209 const char *tm6000_msg_type[] = {
210 "unknown(0)", /* 0 */
211 "video", /* 1 */
212 "audio", /* 2 */
213 "vbi", /* 3 */
214 "pts", /* 4 */
215 "err", /* 5 */
216 "unknown(6)", /* 6 */
217 "unknown(7)", /* 7 */
218 };
219
220 /*
221 * Identify the tm5600/6000 buffer header type and properly handles
222 */
223 static int copy_streams(u8 *data, unsigned long len,
224 struct urb *urb)
225 {
226 struct tm6000_dmaqueue *dma_q = urb->context;
227 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
228 u8 *ptr = data, *endp = data+len, c;
229 unsigned long header = 0;
230 int rc = 0;
231 unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
232 struct tm6000_buffer *vbuf = NULL;
233 char *voutp = NULL;
234 unsigned int linewidth;
235
236 if (!dev->radio) {
237 /* get video buffer */
238 get_next_buf(dma_q, &vbuf);
239
240 if (!vbuf)
241 return rc;
242 voutp = videobuf_to_vmalloc(&vbuf->vb);
243
244 if (!voutp)
245 return 0;
246 }
247
248 for (ptr = data; ptr < endp;) {
249 if (!dev->isoc_ctl.cmd) {
250 /* Header */
251 if (dev->isoc_ctl.tmp_buf_len > 0) {
252 /* from last urb or packet */
253 header = dev->isoc_ctl.tmp_buf;
254 if (4 - dev->isoc_ctl.tmp_buf_len > 0) {
255 memcpy((u8 *)&header +
256 dev->isoc_ctl.tmp_buf_len,
257 ptr,
258 4 - dev->isoc_ctl.tmp_buf_len);
259 ptr += 4 - dev->isoc_ctl.tmp_buf_len;
260 }
261 dev->isoc_ctl.tmp_buf_len = 0;
262 } else {
263 if (ptr + 3 >= endp) {
264 /* have incomplete header */
265 dev->isoc_ctl.tmp_buf_len = endp - ptr;
266 memcpy(&dev->isoc_ctl.tmp_buf, ptr,
267 dev->isoc_ctl.tmp_buf_len);
268 return rc;
269 }
270 /* Seek for sync */
271 for (; ptr < endp - 3; ptr++) {
272 if (*(ptr + 3) == 0x47)
273 break;
274 }
275 /* Get message header */
276 header = *(unsigned long *)ptr;
277 ptr += 4;
278 }
279
280 /* split the header fields */
281 c = (header >> 24) & 0xff;
282 size = ((header & 0x7e) << 1);
283 if (size > 0)
284 size -= 4;
285 block = (header >> 7) & 0xf;
286 field = (header >> 11) & 0x1;
287 line = (header >> 12) & 0x1ff;
288 cmd = (header >> 21) & 0x7;
289 /* Validates haeder fields */
290 if (size > TM6000_URB_MSG_LEN)
291 size = TM6000_URB_MSG_LEN;
292 pktsize = TM6000_URB_MSG_LEN;
293 /* calculate position in buffer
294 * and change the buffer
295 */
296 switch (cmd) {
297 case TM6000_URB_MSG_VIDEO:
298 if (!dev->radio) {
299 if ((dev->isoc_ctl.vfield != field) &&
300 (field == 1)) {
301 /* Announces that a new buffer
302 * were filled
303 */
304 buffer_filled(dev, dma_q, vbuf);
305 dprintk(dev, V4L2_DEBUG_ISOC,
306 "new buffer filled\n");
307 get_next_buf(dma_q, &vbuf);
308 if (!vbuf)
309 return rc;
310 voutp = videobuf_to_vmalloc(&vbuf->vb);
311 if (!voutp)
312 return rc;
313 memset(voutp, 0, vbuf->vb.size);
314 }
315 linewidth = vbuf->vb.width << 1;
316 pos = ((line << 1) - field - 1) *
317 linewidth + block * TM6000_URB_MSG_LEN;
318 /* Don't allow to write out of the buffer */
319 if (pos + size > vbuf->vb.size)
320 cmd = TM6000_URB_MSG_ERR;
321 dev->isoc_ctl.vfield = field;
322 }
323 break;
324 case TM6000_URB_MSG_VBI:
325 break;
326 case TM6000_URB_MSG_AUDIO:
327 case TM6000_URB_MSG_PTS:
328 size = pktsize; /* Size is always 180 bytes */
329 break;
330 }
331 } else {
332 /* Continue the last copy */
333 cmd = dev->isoc_ctl.cmd;
334 size = dev->isoc_ctl.size;
335 pos = dev->isoc_ctl.pos;
336 pktsize = dev->isoc_ctl.pktsize;
337 field = dev->isoc_ctl.field;
338 }
339 cpysize = (endp - ptr > size) ? size : endp - ptr;
340 if (cpysize) {
341 /* copy data in different buffers */
342 switch (cmd) {
343 case TM6000_URB_MSG_VIDEO:
344 /* Fills video buffer */
345 if (vbuf)
346 memcpy(&voutp[pos], ptr, cpysize);
347 break;
348 case TM6000_URB_MSG_AUDIO: {
349 int i;
350 for (i = 0; i < cpysize; i += 2)
351 swab16s((u16 *)(ptr + i));
352
353 tm6000_call_fillbuf(dev, TM6000_AUDIO, ptr, cpysize);
354 break;
355 }
356 case TM6000_URB_MSG_VBI:
357 /* Need some code to copy vbi buffer */
358 break;
359 case TM6000_URB_MSG_PTS: {
360 /* Need some code to copy pts */
361 u32 pts;
362 pts = *(u32 *)ptr;
363 dprintk(dev, V4L2_DEBUG_ISOC, "field %d, PTS %x",
364 field, pts);
365 break;
366 }
367 }
368 }
369 if (ptr + pktsize > endp) {
370 /* End of URB packet, but cmd processing is not
371 * complete. Preserve the state for a next packet
372 */
373 dev->isoc_ctl.pos = pos + cpysize;
374 dev->isoc_ctl.size = size - cpysize;
375 dev->isoc_ctl.cmd = cmd;
376 dev->isoc_ctl.field = field;
377 dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
378 ptr += endp - ptr;
379 } else {
380 dev->isoc_ctl.cmd = 0;
381 ptr += pktsize;
382 }
383 }
384 return 0;
385 }
386
387 /*
388 * Identify the tm5600/6000 buffer header type and properly handles
389 */
390 static int copy_multiplexed(u8 *ptr, unsigned long len,
391 struct urb *urb)
392 {
393 struct tm6000_dmaqueue *dma_q = urb->context;
394 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
395 unsigned int pos = dev->isoc_ctl.pos, cpysize;
396 int rc = 1;
397 struct tm6000_buffer *buf;
398 char *outp = NULL;
399
400 get_next_buf(dma_q, &buf);
401 if (buf)
402 outp = videobuf_to_vmalloc(&buf->vb);
403
404 if (!outp)
405 return 0;
406
407 while (len > 0) {
408 cpysize = min(len, buf->vb.size-pos);
409 memcpy(&outp[pos], ptr, cpysize);
410 pos += cpysize;
411 ptr += cpysize;
412 len -= cpysize;
413 if (pos >= buf->vb.size) {
414 pos = 0;
415 /* Announces that a new buffer were filled */
416 buffer_filled(dev, dma_q, buf);
417 dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
418 get_next_buf(dma_q, &buf);
419 if (!buf)
420 break;
421 outp = videobuf_to_vmalloc(&(buf->vb));
422 if (!outp)
423 return rc;
424 pos = 0;
425 }
426 }
427
428 dev->isoc_ctl.pos = pos;
429 return rc;
430 }
431
432 static inline void print_err_status(struct tm6000_core *dev,
433 int packet, int status)
434 {
435 char *errmsg = "Unknown";
436
437 switch (status) {
438 case -ENOENT:
439 errmsg = "unlinked synchronuously";
440 break;
441 case -ECONNRESET:
442 errmsg = "unlinked asynchronuously";
443 break;
444 case -ENOSR:
445 errmsg = "Buffer error (overrun)";
446 break;
447 case -EPIPE:
448 errmsg = "Stalled (device not responding)";
449 break;
450 case -EOVERFLOW:
451 errmsg = "Babble (bad cable?)";
452 break;
453 case -EPROTO:
454 errmsg = "Bit-stuff error (bad cable?)";
455 break;
456 case -EILSEQ:
457 errmsg = "CRC/Timeout (could be anything)";
458 break;
459 case -ETIME:
460 errmsg = "Device does not respond";
461 break;
462 }
463 if (packet < 0) {
464 dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
465 status, errmsg);
466 } else {
467 dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n",
468 packet, status, errmsg);
469 }
470 }
471
472
473 /*
474 * Controls the isoc copy of each urb packet
475 */
476 static inline int tm6000_isoc_copy(struct urb *urb)
477 {
478 struct tm6000_dmaqueue *dma_q = urb->context;
479 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
480 int i, len = 0, rc = 1, status;
481 char *p;
482
483 if (urb->status < 0) {
484 print_err_status(dev, -1, urb->status);
485 return 0;
486 }
487
488 for (i = 0; i < urb->number_of_packets; i++) {
489 status = urb->iso_frame_desc[i].status;
490
491 if (status < 0) {
492 print_err_status(dev, i, status);
493 continue;
494 }
495
496 len = urb->iso_frame_desc[i].actual_length;
497
498 if (len > 0) {
499 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
500 if (!urb->iso_frame_desc[i].status) {
501 if ((dev->fourcc) == V4L2_PIX_FMT_TM6000) {
502 rc = copy_multiplexed(p, len, urb);
503 if (rc <= 0)
504 return rc;
505 } else {
506 copy_streams(p, len, urb);
507 }
508 }
509 }
510 }
511 return rc;
512 }
513
514 /* ------------------------------------------------------------------
515 * URB control
516 * ------------------------------------------------------------------
517 */
518
519 /*
520 * IRQ callback, called by URB callback
521 */
522 static void tm6000_irq_callback(struct urb *urb)
523 {
524 struct tm6000_dmaqueue *dma_q = urb->context;
525 struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq);
526 int i;
527
528 if (!dev)
529 return;
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, urb_init = 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 if (0 != (rc = videobuf_iolock(vq, &buf->vb, NULL)))
781 goto fail;
782 urb_init = 1;
783 }
784
785 if (!dev->isoc_ctl.num_bufs)
786 urb_init = 1;
787
788 if (urb_init) {
789 rc = tm6000_prepare_isoc(dev);
790 if (rc < 0)
791 goto fail;
792
793 rc = tm6000_start_thread(dev);
794 if (rc < 0)
795 goto fail;
796
797 }
798
799 buf->vb.state = VIDEOBUF_PREPARED;
800 return 0;
801
802 fail:
803 free_buffer(vq, buf);
804 return rc;
805 }
806
807 static void
808 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
809 {
810 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
811 struct tm6000_fh *fh = vq->priv_data;
812 struct tm6000_core *dev = fh->dev;
813 struct tm6000_dmaqueue *vidq = &dev->vidq;
814
815 buf->vb.state = VIDEOBUF_QUEUED;
816 list_add_tail(&buf->vb.queue, &vidq->active);
817 }
818
819 static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
820 {
821 struct tm6000_buffer *buf = container_of(vb, struct tm6000_buffer, vb);
822
823 free_buffer(vq, buf);
824 }
825
826 static struct videobuf_queue_ops tm6000_video_qops = {
827 .buf_setup = buffer_setup,
828 .buf_prepare = buffer_prepare,
829 .buf_queue = buffer_queue,
830 .buf_release = buffer_release,
831 };
832
833 /* ------------------------------------------------------------------
834 * IOCTL handling
835 * ------------------------------------------------------------------
836 */
837
838 static bool is_res_read(struct tm6000_core *dev, struct tm6000_fh *fh)
839 {
840 /* Is the current fh handling it? if so, that's OK */
841 if (dev->resources == fh && dev->is_res_read)
842 return true;
843
844 return false;
845 }
846
847 static bool is_res_streaming(struct tm6000_core *dev, struct tm6000_fh *fh)
848 {
849 /* Is the current fh handling it? if so, that's OK */
850 if (dev->resources == fh)
851 return true;
852
853 return false;
854 }
855
856 static bool res_get(struct tm6000_core *dev, struct tm6000_fh *fh,
857 bool is_res_read)
858 {
859 /* Is the current fh handling it? if so, that's OK */
860 if (dev->resources == fh && dev->is_res_read == is_res_read)
861 return true;
862
863 /* is it free? */
864 if (dev->resources)
865 return false;
866
867 /* grab it */
868 dev->resources = fh;
869 dev->is_res_read = is_res_read;
870 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
871 return true;
872 }
873
874 static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
875 {
876 /* Is the current fh handling it? if so, that's OK */
877 if (dev->resources != fh)
878 return;
879
880 dev->resources = NULL;
881 dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
882 }
883
884 /* ------------------------------------------------------------------
885 * IOCTL vidioc handling
886 * ------------------------------------------------------------------
887 */
888 static int vidioc_querycap(struct file *file, void *priv,
889 struct v4l2_capability *cap)
890 {
891 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
892
893 strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
894 strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
895 cap->version = TM6000_VERSION;
896 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
897 V4L2_CAP_STREAMING |
898 V4L2_CAP_AUDIO |
899 V4L2_CAP_READWRITE;
900
901 if (dev->tuner_type != TUNER_ABSENT)
902 cap->capabilities |= V4L2_CAP_TUNER;
903
904 return 0;
905 }
906
907 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
908 struct v4l2_fmtdesc *f)
909 {
910 if (unlikely(f->index >= ARRAY_SIZE(format)))
911 return -EINVAL;
912
913 strlcpy(f->description, format[f->index].name, sizeof(f->description));
914 f->pixelformat = format[f->index].fourcc;
915 return 0;
916 }
917
918 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
919 struct v4l2_format *f)
920 {
921 struct tm6000_fh *fh = priv;
922
923 f->fmt.pix.width = fh->width;
924 f->fmt.pix.height = fh->height;
925 f->fmt.pix.field = fh->vb_vidq.field;
926 f->fmt.pix.pixelformat = fh->fmt->fourcc;
927 f->fmt.pix.bytesperline =
928 (f->fmt.pix.width * fh->fmt->depth) >> 3;
929 f->fmt.pix.sizeimage =
930 f->fmt.pix.height * f->fmt.pix.bytesperline;
931
932 return 0;
933 }
934
935 static struct tm6000_fmt *format_by_fourcc(unsigned int fourcc)
936 {
937 unsigned int i;
938
939 for (i = 0; i < ARRAY_SIZE(format); i++)
940 if (format[i].fourcc == fourcc)
941 return format+i;
942 return NULL;
943 }
944
945 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
946 struct v4l2_format *f)
947 {
948 struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
949 struct tm6000_fmt *fmt;
950 enum v4l2_field field;
951
952 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
953 if (NULL == fmt) {
954 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
955 " invalid.\n", f->fmt.pix.pixelformat);
956 return -EINVAL;
957 }
958
959 field = f->fmt.pix.field;
960
961 if (field == V4L2_FIELD_ANY)
962 field = V4L2_FIELD_SEQ_TB;
963 else if (V4L2_FIELD_INTERLACED != field) {
964 dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
965 return -EINVAL;
966 }
967
968 tm6000_get_std_res(dev);
969
970 f->fmt.pix.width = dev->width;
971 f->fmt.pix.height = dev->height;
972
973 f->fmt.pix.width &= ~0x01;
974
975 f->fmt.pix.field = field;
976
977 f->fmt.pix.bytesperline =
978 (f->fmt.pix.width * fmt->depth) >> 3;
979 f->fmt.pix.sizeimage =
980 f->fmt.pix.height * f->fmt.pix.bytesperline;
981
982 return 0;
983 }
984
985 /*FIXME: This seems to be generic enough to be at videodev2 */
986 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
987 struct v4l2_format *f)
988 {
989 struct tm6000_fh *fh = priv;
990 struct tm6000_core *dev = fh->dev;
991 int ret = vidioc_try_fmt_vid_cap(file, fh, f);
992 if (ret < 0)
993 return ret;
994
995 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
996 fh->width = f->fmt.pix.width;
997 fh->height = f->fmt.pix.height;
998 fh->vb_vidq.field = f->fmt.pix.field;
999 fh->type = f->type;
1000
1001 dev->fourcc = f->fmt.pix.pixelformat;
1002
1003 tm6000_set_fourcc_format(dev);
1004
1005 return 0;
1006 }
1007
1008 static int vidioc_reqbufs(struct file *file, void *priv,
1009 struct v4l2_requestbuffers *p)
1010 {
1011 struct tm6000_fh *fh = priv;
1012
1013 return videobuf_reqbufs(&fh->vb_vidq, p);
1014 }
1015
1016 static int vidioc_querybuf(struct file *file, void *priv,
1017 struct v4l2_buffer *p)
1018 {
1019 struct tm6000_fh *fh = priv;
1020
1021 return videobuf_querybuf(&fh->vb_vidq, p);
1022 }
1023
1024 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1025 {
1026 struct tm6000_fh *fh = priv;
1027
1028 return videobuf_qbuf(&fh->vb_vidq, p);
1029 }
1030
1031 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1032 {
1033 struct tm6000_fh *fh = priv;
1034
1035 return videobuf_dqbuf(&fh->vb_vidq, p,
1036 file->f_flags & O_NONBLOCK);
1037 }
1038
1039 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
1040 {
1041 struct tm6000_fh *fh = priv;
1042 struct tm6000_core *dev = fh->dev;
1043
1044 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1045 return -EINVAL;
1046 if (i != fh->type)
1047 return -EINVAL;
1048
1049 if (!res_get(dev, fh, false))
1050 return -EBUSY;
1051 return (videobuf_streamon(&fh->vb_vidq));
1052 }
1053
1054 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1055 {
1056 struct tm6000_fh *fh=priv;
1057 struct tm6000_core *dev = fh->dev;
1058
1059 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1060 return -EINVAL;
1061 if (i != fh->type)
1062 return -EINVAL;
1063
1064 videobuf_streamoff(&fh->vb_vidq);
1065 res_free(dev,fh);
1066
1067 return (0);
1068 }
1069
1070 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
1071 {
1072 int rc=0;
1073 struct tm6000_fh *fh=priv;
1074 struct tm6000_core *dev = fh->dev;
1075
1076 dev->norm = *norm;
1077 rc = tm6000_init_analog_mode(dev);
1078
1079 fh->width = dev->width;
1080 fh->height = dev->height;
1081
1082 if (rc<0)
1083 return rc;
1084
1085 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
1086
1087 return 0;
1088 }
1089
1090 static const char *iname [] = {
1091 [TM6000_INPUT_TV] = "Television",
1092 [TM6000_INPUT_COMPOSITE1] = "Composite 1",
1093 [TM6000_INPUT_COMPOSITE2] = "Composite 2",
1094 [TM6000_INPUT_SVIDEO] = "S-Video",
1095 };
1096
1097 static int vidioc_enum_input(struct file *file, void *priv,
1098 struct v4l2_input *i)
1099 {
1100 struct tm6000_fh *fh = priv;
1101 struct tm6000_core *dev = fh->dev;
1102 unsigned int n;
1103
1104 n = i->index;
1105 if (n >= 3)
1106 return -EINVAL;
1107
1108 if (!dev->vinput[n].type)
1109 return -EINVAL;
1110
1111 i->index = n;
1112
1113 if (dev->vinput[n].type == TM6000_INPUT_TV)
1114 i->type = V4L2_INPUT_TYPE_TUNER;
1115 else
1116 i->type = V4L2_INPUT_TYPE_CAMERA;
1117
1118 strcpy(i->name, iname[dev->vinput[n].type]);
1119
1120 i->std = TM6000_STD;
1121
1122 return 0;
1123 }
1124
1125 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1126 {
1127 struct tm6000_fh *fh = priv;
1128 struct tm6000_core *dev = fh->dev;
1129
1130 *i = dev->input;
1131
1132 return 0;
1133 }
1134
1135 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1136 {
1137 struct tm6000_fh *fh = priv;
1138 struct tm6000_core *dev = fh->dev;
1139 int rc = 0;
1140
1141 if (i >= 3)
1142 return -EINVAL;
1143 if (!dev->vinput[i].type)
1144 return -EINVAL;
1145
1146 dev->input = i;
1147
1148 rc = vidioc_s_std(file, priv, &dev->vfd->current_norm);
1149
1150 return rc;
1151 }
1152
1153 /* --- controls ---------------------------------------------- */
1154 static int vidioc_queryctrl(struct file *file, void *priv,
1155 struct v4l2_queryctrl *qc)
1156 {
1157 int i;
1158
1159 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1160 if (qc->id && qc->id == tm6000_qctrl[i].id) {
1161 memcpy(qc, &(tm6000_qctrl[i]),
1162 sizeof(*qc));
1163 return 0;
1164 }
1165
1166 return -EINVAL;
1167 }
1168
1169 static int vidioc_g_ctrl(struct file *file, void *priv,
1170 struct v4l2_control *ctrl)
1171 {
1172 struct tm6000_fh *fh = priv;
1173 struct tm6000_core *dev = fh->dev;
1174 int val;
1175
1176 /* FIXME: Probably, those won't work! Maybe we need shadow regs */
1177 switch (ctrl->id) {
1178 case V4L2_CID_CONTRAST:
1179 val = tm6000_get_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, 0);
1180 break;
1181 case V4L2_CID_BRIGHTNESS:
1182 val = tm6000_get_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, 0);
1183 return 0;
1184 case V4L2_CID_SATURATION:
1185 val = tm6000_get_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, 0);
1186 return 0;
1187 case V4L2_CID_HUE:
1188 val = tm6000_get_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, 0);
1189 return 0;
1190 case V4L2_CID_AUDIO_MUTE:
1191 val = dev->ctl_mute;
1192 return 0;
1193 case V4L2_CID_AUDIO_VOLUME:
1194 val = dev->ctl_volume;
1195 return 0;
1196 default:
1197 return -EINVAL;
1198 }
1199
1200 if (val < 0)
1201 return val;
1202
1203 ctrl->value = val;
1204
1205 return 0;
1206 }
1207 static int vidioc_s_ctrl(struct file *file, void *priv,
1208 struct v4l2_control *ctrl)
1209 {
1210 struct tm6000_fh *fh = priv;
1211 struct tm6000_core *dev = fh->dev;
1212 u8 val = ctrl->value;
1213
1214 switch (ctrl->id) {
1215 case V4L2_CID_CONTRAST:
1216 tm6000_set_reg(dev, TM6010_REQ07_R08_LUMA_CONTRAST_ADJ, val);
1217 return 0;
1218 case V4L2_CID_BRIGHTNESS:
1219 tm6000_set_reg(dev, TM6010_REQ07_R09_LUMA_BRIGHTNESS_ADJ, val);
1220 return 0;
1221 case V4L2_CID_SATURATION:
1222 tm6000_set_reg(dev, TM6010_REQ07_R0A_CHROMA_SATURATION_ADJ, val);
1223 return 0;
1224 case V4L2_CID_HUE:
1225 tm6000_set_reg(dev, TM6010_REQ07_R0B_CHROMA_HUE_PHASE_ADJ, val);
1226 return 0;
1227 case V4L2_CID_AUDIO_MUTE:
1228 dev->ctl_mute = val;
1229 tm6000_tvaudio_set_mute(dev, val);
1230 return 0;
1231 case V4L2_CID_AUDIO_VOLUME:
1232 dev->ctl_volume = val;
1233 tm6000_set_volume(dev, val);
1234 return 0;
1235 }
1236 return -EINVAL;
1237 }
1238
1239 static int vidioc_g_tuner(struct file *file, void *priv,
1240 struct v4l2_tuner *t)
1241 {
1242 struct tm6000_fh *fh = priv;
1243 struct tm6000_core *dev = fh->dev;
1244
1245 if (unlikely(UNSET == dev->tuner_type))
1246 return -EINVAL;
1247 if (0 != t->index)
1248 return -EINVAL;
1249
1250 strcpy(t->name, "Television");
1251 t->type = V4L2_TUNER_ANALOG_TV;
1252 t->capability = V4L2_TUNER_CAP_NORM;
1253 t->rangehigh = 0xffffffffUL;
1254 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1255
1256 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1257
1258 t->audmode = dev->amode;
1259
1260 return 0;
1261 }
1262
1263 static int vidioc_s_tuner(struct file *file, void *priv,
1264 struct v4l2_tuner *t)
1265 {
1266 struct tm6000_fh *fh = priv;
1267 struct tm6000_core *dev = fh->dev;
1268
1269 if (UNSET == dev->tuner_type)
1270 return -EINVAL;
1271 if (0 != t->index)
1272 return -EINVAL;
1273
1274 dev->amode = t->audmode;
1275 dprintk(dev, 3, "audio mode: %x\n", t->audmode);
1276
1277 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1278
1279 return 0;
1280 }
1281
1282 static int vidioc_g_frequency(struct file *file, void *priv,
1283 struct v4l2_frequency *f)
1284 {
1285 struct tm6000_fh *fh = priv;
1286 struct tm6000_core *dev = fh->dev;
1287
1288 if (unlikely(UNSET == dev->tuner_type))
1289 return -EINVAL;
1290
1291 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1292 f->frequency = dev->freq;
1293
1294 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
1295
1296 return 0;
1297 }
1298
1299 static int vidioc_s_frequency(struct file *file, void *priv,
1300 struct v4l2_frequency *f)
1301 {
1302 struct tm6000_fh *fh = priv;
1303 struct tm6000_core *dev = fh->dev;
1304
1305 if (unlikely(UNSET == dev->tuner_type))
1306 return -EINVAL;
1307 if (unlikely(f->tuner != 0))
1308 return -EINVAL;
1309 if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1310 return -EINVAL;
1311 if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1312 return -EINVAL;
1313
1314 dev->freq = f->frequency;
1315 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
1316
1317 return 0;
1318 }
1319
1320 static int radio_querycap(struct file *file, void *priv,
1321 struct v4l2_capability *cap)
1322 {
1323 struct tm6000_fh *fh = file->private_data;
1324 struct tm6000_core *dev = fh->dev;
1325
1326 strcpy(cap->driver, "tm6000");
1327 strlcpy(cap->card, dev->name, sizeof(dev->name));
1328 sprintf(cap->bus_info, "USB%04x:%04x",
1329 le16_to_cpu(dev->udev->descriptor.idVendor),
1330 le16_to_cpu(dev->udev->descriptor.idProduct));
1331 cap->version = dev->dev_type;
1332 cap->capabilities = V4L2_CAP_TUNER |
1333 V4L2_CAP_AUDIO |
1334 V4L2_CAP_RADIO |
1335 V4L2_CAP_READWRITE |
1336 V4L2_CAP_STREAMING;
1337
1338 return 0;
1339 }
1340
1341 static int radio_g_tuner(struct file *file, void *priv,
1342 struct v4l2_tuner *t)
1343 {
1344 struct tm6000_fh *fh = file->private_data;
1345 struct tm6000_core *dev = fh->dev;
1346
1347 if (0 != t->index)
1348 return -EINVAL;
1349
1350 memset(t, 0, sizeof(*t));
1351 strcpy(t->name, "Radio");
1352 t->type = V4L2_TUNER_RADIO;
1353 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1354
1355 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1356
1357 return 0;
1358 }
1359
1360 static int radio_s_tuner(struct file *file, void *priv,
1361 struct v4l2_tuner *t)
1362 {
1363 struct tm6000_fh *fh = file->private_data;
1364 struct tm6000_core *dev = fh->dev;
1365
1366 if (0 != t->index)
1367 return -EINVAL;
1368
1369 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1370
1371 return 0;
1372 }
1373
1374 static int radio_enum_input(struct file *file, void *priv,
1375 struct v4l2_input *i)
1376 {
1377 struct tm6000_fh *fh = priv;
1378 struct tm6000_core *dev = fh->dev;
1379
1380 if (i->index != 0)
1381 return -EINVAL;
1382
1383 if (!dev->rinput.type)
1384 return -EINVAL;
1385
1386 strcpy(i->name, "Radio");
1387 i->type = V4L2_INPUT_TYPE_TUNER;
1388
1389 return 0;
1390 }
1391
1392 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
1393 {
1394 struct tm6000_fh *fh = priv;
1395 struct tm6000_core *dev = fh->dev;
1396
1397 if (dev->input !=5)
1398 return -EINVAL;
1399
1400 *i = dev->input -5;
1401
1402 return 0;
1403 }
1404
1405 static int radio_g_audio(struct file *file, void *priv,
1406 struct v4l2_audio *a)
1407 {
1408 memset(a, 0, sizeof(*a));
1409 strcpy(a->name, "Radio");
1410 return 0;
1411 }
1412
1413 static int radio_s_audio(struct file *file, void *priv,
1414 struct v4l2_audio *a)
1415 {
1416 return 0;
1417 }
1418
1419 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
1420 {
1421 struct tm6000_fh *fh = priv;
1422 struct tm6000_core *dev = fh->dev;
1423
1424 if (i)
1425 return -EINVAL;
1426
1427 if (!dev->rinput.type)
1428 return -EINVAL;
1429
1430 dev->input = i + 5;
1431
1432 return 0;
1433 }
1434
1435 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
1436 {
1437 return 0;
1438 }
1439
1440 static int radio_queryctrl(struct file *file, void *priv,
1441 struct v4l2_queryctrl *c)
1442 {
1443 const struct v4l2_queryctrl *ctrl;
1444
1445 if (c->id < V4L2_CID_BASE ||
1446 c->id >= V4L2_CID_LASTP1)
1447 return -EINVAL;
1448 if (c->id == V4L2_CID_AUDIO_MUTE) {
1449 ctrl = ctrl_by_id(c->id);
1450 *c = *ctrl;
1451 } else
1452 *c = no_ctrl;
1453
1454 return 0;
1455 }
1456
1457 /* ------------------------------------------------------------------
1458 File operations for the device
1459 ------------------------------------------------------------------*/
1460
1461 static int tm6000_open(struct file *file)
1462 {
1463 struct video_device *vdev = video_devdata(file);
1464 struct tm6000_core *dev = video_drvdata(file);
1465 struct tm6000_fh *fh;
1466 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1467 int i, rc;
1468 int radio = 0;
1469
1470 printk(KERN_INFO "tm6000: open called (dev=%s)\n",
1471 video_device_node_name(vdev));
1472
1473 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called (dev=%s)\n",
1474 video_device_node_name(vdev));
1475
1476 switch (vdev->vfl_type) {
1477 case VFL_TYPE_GRABBER:
1478 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1479 break;
1480 case VFL_TYPE_VBI:
1481 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1482 break;
1483 case VFL_TYPE_RADIO:
1484 radio = 1;
1485 break;
1486 }
1487
1488 /* If more than one user, mutex should be added */
1489 dev->users++;
1490
1491 dprintk(dev, V4L2_DEBUG_OPEN, "open dev=%s type=%s users=%d\n",
1492 video_device_node_name(vdev), v4l2_type_names[type],
1493 dev->users);
1494
1495 /* allocate + initialize per filehandle data */
1496 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1497 if (NULL == fh) {
1498 dev->users--;
1499 return -ENOMEM;
1500 }
1501
1502 file->private_data = fh;
1503 fh->dev = dev;
1504 fh->radio = radio;
1505 dev->radio = radio;
1506 fh->type = type;
1507 dev->fourcc = format[0].fourcc;
1508
1509 fh->fmt = format_by_fourcc(dev->fourcc);
1510
1511 tm6000_get_std_res (dev);
1512
1513 fh->width = dev->width;
1514 fh->height = dev->height;
1515
1516 dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
1517 "dev->vidq=0x%08lx\n",
1518 (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
1519 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1520 "queued=%d\n",list_empty(&dev->vidq.queued));
1521 dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
1522 "active=%d\n",list_empty(&dev->vidq.active));
1523
1524 /* initialize hardware on analog mode */
1525 rc = tm6000_init_analog_mode(dev);
1526 if (rc < 0)
1527 return rc;
1528
1529 if (dev->mode != TM6000_MODE_ANALOG) {
1530 /* Put all controls at a sane state */
1531 for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
1532 qctl_regs[i] = tm6000_qctrl[i].default_value;
1533
1534 dev->mode = TM6000_MODE_ANALOG;
1535 }
1536
1537 videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
1538 NULL, &dev->slock,
1539 fh->type,
1540 V4L2_FIELD_INTERLACED,
1541 sizeof(struct tm6000_buffer), fh, &dev->lock);
1542
1543 if (fh->radio) {
1544 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
1545 dev->input = 5;
1546 tm6000_set_audio_rinput(dev);
1547 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
1548 tm6000_prepare_isoc(dev);
1549 tm6000_start_thread(dev);
1550 }
1551
1552 return 0;
1553 }
1554
1555 static ssize_t
1556 tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
1557 {
1558 struct tm6000_fh *fh = file->private_data;
1559
1560 if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1561 if (!res_get(fh->dev, fh, true))
1562 return -EBUSY;
1563
1564 return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
1565 file->f_flags & O_NONBLOCK);
1566 }
1567 return 0;
1568 }
1569
1570 static unsigned int
1571 tm6000_poll(struct file *file, struct poll_table_struct *wait)
1572 {
1573 struct tm6000_fh *fh = file->private_data;
1574 struct tm6000_buffer *buf;
1575
1576 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
1577 return POLLERR;
1578
1579 if (!!is_res_streaming(fh->dev, fh))
1580 return POLLERR;
1581
1582 if (!is_res_read(fh->dev, fh)) {
1583 /* streaming capture */
1584 if (list_empty(&fh->vb_vidq.stream))
1585 return POLLERR;
1586 buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
1587 } else {
1588 /* read() capture */
1589 return videobuf_poll_stream(file, &fh->vb_vidq,
1590 wait);
1591 }
1592 poll_wait(file, &buf->vb.done, wait);
1593 if (buf->vb.state == VIDEOBUF_DONE ||
1594 buf->vb.state == VIDEOBUF_ERROR)
1595 return POLLIN | POLLRDNORM;
1596 return 0;
1597 }
1598
1599 static int tm6000_release(struct file *file)
1600 {
1601 struct tm6000_fh *fh = file->private_data;
1602 struct tm6000_core *dev = fh->dev;
1603 struct video_device *vdev = video_devdata(file);
1604
1605 dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (dev=%s, users=%d)\n",
1606 video_device_node_name(vdev), dev->users);
1607
1608 dev->users--;
1609
1610 res_free(dev, fh);
1611 if (!dev->users) {
1612 tm6000_uninit_isoc(dev);
1613 videobuf_mmap_free(&fh->vb_vidq);
1614 }
1615
1616 kfree(fh);
1617
1618 return 0;
1619 }
1620
1621 static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
1622 {
1623 struct tm6000_fh *fh = file->private_data;
1624 int ret;
1625
1626 ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1627
1628 return ret;
1629 }
1630
1631 static struct v4l2_file_operations tm6000_fops = {
1632 .owner = THIS_MODULE,
1633 .open = tm6000_open,
1634 .release = tm6000_release,
1635 .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1636 .read = tm6000_read,
1637 .poll = tm6000_poll,
1638 .mmap = tm6000_mmap,
1639 };
1640
1641 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1642 .vidioc_querycap = vidioc_querycap,
1643 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1644 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1645 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1646 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1647 .vidioc_s_std = vidioc_s_std,
1648 .vidioc_enum_input = vidioc_enum_input,
1649 .vidioc_g_input = vidioc_g_input,
1650 .vidioc_s_input = vidioc_s_input,
1651 .vidioc_queryctrl = vidioc_queryctrl,
1652 .vidioc_g_ctrl = vidioc_g_ctrl,
1653 .vidioc_s_ctrl = vidioc_s_ctrl,
1654 .vidioc_g_tuner = vidioc_g_tuner,
1655 .vidioc_s_tuner = vidioc_s_tuner,
1656 .vidioc_g_frequency = vidioc_g_frequency,
1657 .vidioc_s_frequency = vidioc_s_frequency,
1658 .vidioc_streamon = vidioc_streamon,
1659 .vidioc_streamoff = vidioc_streamoff,
1660 .vidioc_reqbufs = vidioc_reqbufs,
1661 .vidioc_querybuf = vidioc_querybuf,
1662 .vidioc_qbuf = vidioc_qbuf,
1663 .vidioc_dqbuf = vidioc_dqbuf,
1664 };
1665
1666 static struct video_device tm6000_template = {
1667 .name = "tm6000",
1668 .fops = &tm6000_fops,
1669 .ioctl_ops = &video_ioctl_ops,
1670 .release = video_device_release,
1671 .tvnorms = TM6000_STD,
1672 .current_norm = V4L2_STD_NTSC_M,
1673 };
1674
1675 static const struct v4l2_file_operations radio_fops = {
1676 .owner = THIS_MODULE,
1677 .open = tm6000_open,
1678 .release = tm6000_release,
1679 .unlocked_ioctl = video_ioctl2,
1680 };
1681
1682 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1683 .vidioc_querycap = radio_querycap,
1684 .vidioc_g_tuner = radio_g_tuner,
1685 .vidioc_enum_input = radio_enum_input,
1686 .vidioc_g_audio = radio_g_audio,
1687 .vidioc_s_tuner = radio_s_tuner,
1688 .vidioc_s_audio = radio_s_audio,
1689 .vidioc_s_input = radio_s_input,
1690 .vidioc_s_std = radio_s_std,
1691 .vidioc_queryctrl = radio_queryctrl,
1692 .vidioc_g_input = radio_g_input,
1693 .vidioc_g_ctrl = vidioc_g_ctrl,
1694 .vidioc_s_ctrl = vidioc_s_ctrl,
1695 .vidioc_g_frequency = vidioc_g_frequency,
1696 .vidioc_s_frequency = vidioc_s_frequency,
1697 };
1698
1699 struct video_device tm6000_radio_template = {
1700 .name = "tm6000",
1701 .fops = &radio_fops,
1702 .ioctl_ops = &radio_ioctl_ops,
1703 };
1704
1705 /* -----------------------------------------------------------------
1706 * Initialization and module stuff
1707 * ------------------------------------------------------------------
1708 */
1709
1710 static struct video_device *vdev_init(struct tm6000_core *dev,
1711 const struct video_device
1712 *template, const char *type_name)
1713 {
1714 struct video_device *vfd;
1715
1716 vfd = video_device_alloc();
1717 if (NULL == vfd)
1718 return NULL;
1719
1720 *vfd = *template;
1721 vfd->v4l2_dev = &dev->v4l2_dev;
1722 vfd->release = video_device_release;
1723 vfd->debug = tm6000_debug;
1724 vfd->lock = &dev->lock;
1725
1726 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1727
1728 video_set_drvdata(vfd, dev);
1729 return vfd;
1730 }
1731
1732 int tm6000_v4l2_register(struct tm6000_core *dev)
1733 {
1734 int ret = -1;
1735
1736 dev->vfd = vdev_init(dev, &tm6000_template, "video");
1737
1738 if (!dev->vfd) {
1739 printk(KERN_INFO "%s: can't register video device\n",
1740 dev->name);
1741 return -ENOMEM;
1742 }
1743
1744 /* init video dma queues */
1745 INIT_LIST_HEAD(&dev->vidq.active);
1746 INIT_LIST_HEAD(&dev->vidq.queued);
1747
1748 ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr);
1749
1750 if (ret < 0) {
1751 printk(KERN_INFO "%s: can't register video device\n",
1752 dev->name);
1753 return ret;
1754 }
1755
1756 printk(KERN_INFO "%s: registered device %s\n",
1757 dev->name, video_device_node_name(dev->vfd));
1758
1759 if (dev->caps.has_radio) {
1760 dev->radio_dev = vdev_init(dev, &tm6000_radio_template,
1761 "radio");
1762 if (!dev->radio_dev) {
1763 printk(KERN_INFO "%s: can't register radio device\n",
1764 dev->name);
1765 return ret; /* FIXME release resource */
1766 }
1767
1768 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
1769 radio_nr);
1770 if (ret < 0) {
1771 printk(KERN_INFO "%s: can't register radio device\n",
1772 dev->name);
1773 return ret; /* FIXME release resource */
1774 }
1775
1776 printk(KERN_INFO "%s: registered device %s\n",
1777 dev->name, video_device_node_name(dev->radio_dev));
1778 }
1779
1780 printk(KERN_INFO "Trident TVMaster TM5600/TM6000/TM6010 USB2 board (Load status: %d)\n", ret);
1781 return ret;
1782 }
1783
1784 int tm6000_v4l2_unregister(struct tm6000_core *dev)
1785 {
1786 video_unregister_device(dev->vfd);
1787
1788 if (dev->radio_dev) {
1789 if (video_is_registered(dev->radio_dev))
1790 video_unregister_device(dev->radio_dev);
1791 else
1792 video_device_release(dev->radio_dev);
1793 dev->radio_dev = NULL;
1794 }
1795
1796 return 0;
1797 }
1798
1799 int tm6000_v4l2_exit(void)
1800 {
1801 return 0;
1802 }
1803
1804 module_param(video_nr, int, 0);
1805 MODULE_PARM_DESC(video_nr, "Allow changing video device number");
1806
1807 module_param_named(debug, tm6000_debug, int, 0444);
1808 MODULE_PARM_DESC(debug, "activates debug info");
1809
1810 module_param(vid_limit, int, 0644);
1811 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
1812