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25#include "em28xx.h"
26
27#include <linux/init.h>
28#include <linux/list.h>
29#include <linux/module.h>
30#include <linux/kernel.h>
31#include <linux/bitmap.h>
32#include <linux/usb.h>
33#include <linux/i2c.h>
34#include <linux/mm.h>
35#include <linux/mutex.h>
36#include <linux/slab.h>
37
38#include "em28xx-v4l.h"
39#include <media/v4l2-common.h>
40#include <media/v4l2-ioctl.h>
41#include <media/v4l2-event.h>
42#include <media/drv-intf/msp3400.h>
43#include <media/tuner.h>
44
45#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \
46 "Markus Rechberger <mrechberger@gmail.com>, " \
47 "Mauro Carvalho Chehab <mchehab@kernel.org>, " \
48 "Sascha Sommer <saschasommer@freenet.de>"
49
50static unsigned int isoc_debug;
51module_param(isoc_debug, int, 0644);
52MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
53
54static unsigned int disable_vbi;
55module_param(disable_vbi, int, 0644);
56MODULE_PARM_DESC(disable_vbi, "disable vbi support");
57
58static int alt;
59module_param(alt, int, 0644);
60MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
61
62#define em28xx_videodbg(fmt, arg...) do { \
63 if (video_debug) \
64 dev_printk(KERN_DEBUG, &dev->intf->dev, \
65 "video: %s: " fmt, __func__, ## arg); \
66} while (0)
67
68#define em28xx_isocdbg(fmt, arg...) do {\
69 if (isoc_debug) \
70 dev_printk(KERN_DEBUG, &dev->intf->dev, \
71 "isoc: %s: " fmt, __func__, ## arg); \
72} while (0)
73
74MODULE_AUTHOR(DRIVER_AUTHOR);
75MODULE_DESCRIPTION(DRIVER_DESC " - v4l2 interface");
76MODULE_LICENSE("GPL v2");
77MODULE_VERSION(EM28XX_VERSION);
78
79#define EM25XX_FRMDATAHDR_BYTE1 0x02
80#define EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE 0x20
81#define EM25XX_FRMDATAHDR_BYTE2_FRAME_END 0x02
82#define EM25XX_FRMDATAHDR_BYTE2_FRAME_ID 0x01
83#define EM25XX_FRMDATAHDR_BYTE2_MASK (EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE | \
84 EM25XX_FRMDATAHDR_BYTE2_FRAME_END | \
85 EM25XX_FRMDATAHDR_BYTE2_FRAME_ID)
86
87static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
88static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
89static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
90
91module_param_array(video_nr, int, NULL, 0444);
92module_param_array(vbi_nr, int, NULL, 0444);
93module_param_array(radio_nr, int, NULL, 0444);
94MODULE_PARM_DESC(video_nr, "video device numbers");
95MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
96MODULE_PARM_DESC(radio_nr, "radio device numbers");
97
98static unsigned int video_debug;
99module_param(video_debug, int, 0644);
100MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
101
102
103static struct em28xx_fmt format[] = {
104 {
105 .name = "16 bpp YUY2, 4:2:2, packed",
106 .fourcc = V4L2_PIX_FMT_YUYV,
107 .depth = 16,
108 .reg = EM28XX_OUTFMT_YUV422_Y0UY1V,
109 }, {
110 .name = "16 bpp RGB 565, LE",
111 .fourcc = V4L2_PIX_FMT_RGB565,
112 .depth = 16,
113 .reg = EM28XX_OUTFMT_RGB_16_656,
114 }, {
115 .name = "8 bpp Bayer RGRG..GBGB",
116 .fourcc = V4L2_PIX_FMT_SRGGB8,
117 .depth = 8,
118 .reg = EM28XX_OUTFMT_RGB_8_RGRG,
119 }, {
120 .name = "8 bpp Bayer BGBG..GRGR",
121 .fourcc = V4L2_PIX_FMT_SBGGR8,
122 .depth = 8,
123 .reg = EM28XX_OUTFMT_RGB_8_BGBG,
124 }, {
125 .name = "8 bpp Bayer GRGR..BGBG",
126 .fourcc = V4L2_PIX_FMT_SGRBG8,
127 .depth = 8,
128 .reg = EM28XX_OUTFMT_RGB_8_GRGR,
129 }, {
130 .name = "8 bpp Bayer GBGB..RGRG",
131 .fourcc = V4L2_PIX_FMT_SGBRG8,
132 .depth = 8,
133 .reg = EM28XX_OUTFMT_RGB_8_GBGB,
134 }, {
135 .name = "12 bpp YUV411",
136 .fourcc = V4L2_PIX_FMT_YUV411P,
137 .depth = 12,
138 .reg = EM28XX_OUTFMT_YUV411,
139 },
140};
141
142
143static inline unsigned int norm_maxw(struct em28xx *dev)
144{
145 struct em28xx_v4l2 *v4l2 = dev->v4l2;
146
147 if (dev->is_webcam)
148 return v4l2->sensor_xres;
149
150 if (dev->board.max_range_640_480)
151 return 640;
152
153 return 720;
154}
155
156static inline unsigned int norm_maxh(struct em28xx *dev)
157{
158 struct em28xx_v4l2 *v4l2 = dev->v4l2;
159
160 if (dev->is_webcam)
161 return v4l2->sensor_yres;
162
163 if (dev->board.max_range_640_480)
164 return 480;
165
166 return (v4l2->norm & V4L2_STD_625_50) ? 576 : 480;
167}
168
169static int em28xx_vbi_supported(struct em28xx *dev)
170{
171
172 if (disable_vbi == 1)
173 return 0;
174
175 if (dev->is_webcam)
176 return 0;
177
178
179
180 if (dev->chip_id == CHIP_ID_EM2860 ||
181 dev->chip_id == CHIP_ID_EM2883)
182 return 1;
183
184
185 return 0;
186}
187
188
189
190
191
192static void em28xx_wake_i2c(struct em28xx *dev)
193{
194 struct v4l2_device *v4l2_dev = &dev->v4l2->v4l2_dev;
195
196 v4l2_device_call_all(v4l2_dev, 0, core, reset, 0);
197 v4l2_device_call_all(v4l2_dev, 0, video, s_routing,
198 INPUT(dev->ctl_input)->vmux, 0, 0);
199}
200
201static int em28xx_colorlevels_set_default(struct em28xx *dev)
202{
203 em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
204 em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
205 em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT);
206 em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT);
207 em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT);
208 em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT);
209
210 em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20);
211 em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20);
212 em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20);
213 em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20);
214 em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00);
215 em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00);
216 return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
217}
218
219static int em28xx_set_outfmt(struct em28xx *dev)
220{
221 int ret;
222 u8 fmt, vinctrl;
223 struct em28xx_v4l2 *v4l2 = dev->v4l2;
224
225 fmt = v4l2->format->reg;
226 if (!dev->is_em25xx)
227 fmt |= 0x20;
228
229
230
231
232
233
234
235
236
237 ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt);
238 if (ret < 0)
239 return ret;
240
241 ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, v4l2->vinmode);
242 if (ret < 0)
243 return ret;
244
245 vinctrl = v4l2->vinctl;
246 if (em28xx_vbi_supported(dev) == 1) {
247 vinctrl |= EM28XX_VINCTRL_VBI_RAW;
248 em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00);
249 em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH,
250 v4l2->vbi_width / 4);
251 em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, v4l2->vbi_height);
252 if (v4l2->norm & V4L2_STD_525_60) {
253
254 em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09);
255 } else if (v4l2->norm & V4L2_STD_625_50) {
256
257 em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07);
258 }
259 }
260
261 return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl);
262}
263
264static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
265 u8 ymin, u8 ymax)
266{
267 em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n",
268 xmin, ymin, xmax, ymax);
269
270 em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1);
271 em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1);
272 em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1);
273 return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1);
274}
275
276static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
277 u16 width, u16 height)
278{
279 u8 cwidth = width >> 2;
280 u8 cheight = height >> 2;
281 u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01);
282
283
284 em28xx_videodbg("capture area set to (%d,%d): %dx%d\n",
285 hstart, vstart,
286 ((overflow & 2) << 9 | cwidth << 2),
287 ((overflow & 1) << 10 | cheight << 2));
288
289 em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1);
290 em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1);
291 em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1);
292 em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1);
293 em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1);
294
295
296
297 if (dev->is_em25xx) {
298 em28xx_write_reg(dev, 0x34, width >> 4);
299 em28xx_write_reg(dev, 0x35, height >> 4);
300 }
301}
302
303static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
304{
305 u8 mode = 0x00;
306
307
308 if (dev->board.is_em2800) {
309 mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
310 } else {
311 u8 buf[2];
312
313 buf[0] = h;
314 buf[1] = h >> 8;
315 em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2);
316
317 buf[0] = v;
318 buf[1] = v >> 8;
319 em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2);
320
321
322
323
324 mode = (h || v) ? 0x30 : 0x00;
325 }
326 return em28xx_write_reg(dev, EM28XX_R26_COMPR, mode);
327}
328
329
330static int em28xx_resolution_set(struct em28xx *dev)
331{
332 struct em28xx_v4l2 *v4l2 = dev->v4l2;
333 int width = norm_maxw(dev);
334 int height = norm_maxh(dev);
335
336
337 v4l2->vbi_width = 720;
338 if (v4l2->norm & V4L2_STD_525_60)
339 v4l2->vbi_height = 12;
340 else
341 v4l2->vbi_height = 18;
342
343 em28xx_set_outfmt(dev);
344
345 em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
346
347
348
349
350
351
352
353
354
355
356 if (em28xx_vbi_supported(dev) == 1)
357 em28xx_capture_area_set(dev, 0, 2, width, height);
358 else
359 em28xx_capture_area_set(dev, 0, 0, width, height);
360
361 return em28xx_scaler_set(dev, v4l2->hscale, v4l2->vscale);
362}
363
364
365static int em28xx_set_alternate(struct em28xx *dev)
366{
367 struct em28xx_v4l2 *v4l2 = dev->v4l2;
368 struct usb_device *udev = interface_to_usbdev(dev->intf);
369 int err;
370 int i;
371 unsigned int min_pkt_size = v4l2->width * 2 + 4;
372
373
374
375
376
377 dev->alt = 0;
378 if (alt > 0 && alt < dev->num_alt) {
379 em28xx_videodbg("alternate forced to %d\n", dev->alt);
380 dev->alt = alt;
381 goto set_alt;
382 }
383 if (dev->analog_xfer_bulk)
384 goto set_alt;
385
386
387
388
389
390
391 if (v4l2->width * 2 * v4l2->height > 720 * 240 * 2)
392 min_pkt_size *= 2;
393
394 for (i = 0; i < dev->num_alt; i++) {
395
396 if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) {
397 dev->alt = i;
398 break;
399
400
401
402
403
404 } else if (dev->alt_max_pkt_size_isoc[i] >
405 dev->alt_max_pkt_size_isoc[dev->alt])
406 dev->alt = i;
407 }
408
409set_alt:
410
411
412
413
414
415 if (dev->analog_xfer_bulk) {
416 dev->max_pkt_size = 512;
417 dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER;
418 } else {
419 em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n",
420 min_pkt_size, dev->alt);
421 dev->max_pkt_size =
422 dev->alt_max_pkt_size_isoc[dev->alt];
423 dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS;
424 }
425 em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n",
426 dev->alt, dev->max_pkt_size);
427 err = usb_set_interface(udev, dev->ifnum, dev->alt);
428 if (err < 0) {
429 dev_err(&dev->intf->dev,
430 "cannot change alternate number to %d (error=%i)\n",
431 dev->alt, err);
432 return err;
433 }
434 return 0;
435}
436
437
438
439
440
441
442
443
444static inline void finish_buffer(struct em28xx *dev,
445 struct em28xx_buffer *buf)
446{
447 em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
448
449 buf->vb.sequence = dev->v4l2->field_count++;
450 if (dev->v4l2->progressive)
451 buf->vb.field = V4L2_FIELD_NONE;
452 else
453 buf->vb.field = V4L2_FIELD_INTERLACED;
454 buf->vb.vb2_buf.timestamp = ktime_get_ns();
455
456 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
457}
458
459
460
461
462static void em28xx_copy_video(struct em28xx *dev,
463 struct em28xx_buffer *buf,
464 unsigned char *usb_buf,
465 unsigned long len)
466{
467 struct em28xx_v4l2 *v4l2 = dev->v4l2;
468 void *fieldstart, *startwrite, *startread;
469 int linesdone, currlinedone, offset, lencopy, remain;
470 int bytesperline = v4l2->width << 1;
471
472 if (buf->pos + len > buf->length)
473 len = buf->length - buf->pos;
474
475 startread = usb_buf;
476 remain = len;
477
478 if (v4l2->progressive || buf->top_field)
479 fieldstart = buf->vb_buf;
480 else
481 fieldstart = buf->vb_buf + bytesperline;
482
483 linesdone = buf->pos / bytesperline;
484 currlinedone = buf->pos % bytesperline;
485
486 if (v4l2->progressive)
487 offset = linesdone * bytesperline + currlinedone;
488 else
489 offset = linesdone * bytesperline * 2 + currlinedone;
490
491 startwrite = fieldstart + offset;
492 lencopy = bytesperline - currlinedone;
493 lencopy = lencopy > remain ? remain : lencopy;
494
495 if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->length) {
496 em28xx_isocdbg("Overflow of %zu bytes past buffer end (1)\n",
497 ((char *)startwrite + lencopy) -
498 ((char *)buf->vb_buf + buf->length));
499 remain = (char *)buf->vb_buf + buf->length -
500 (char *)startwrite;
501 lencopy = remain;
502 }
503 if (lencopy <= 0)
504 return;
505 memcpy(startwrite, startread, lencopy);
506
507 remain -= lencopy;
508
509 while (remain > 0) {
510 if (v4l2->progressive)
511 startwrite += lencopy;
512 else
513 startwrite += lencopy + bytesperline;
514 startread += lencopy;
515 if (bytesperline > remain)
516 lencopy = remain;
517 else
518 lencopy = bytesperline;
519
520 if ((char *)startwrite + lencopy > (char *)buf->vb_buf +
521 buf->length) {
522 em28xx_isocdbg("Overflow of %zu bytes past buffer end(2)\n",
523 ((char *)startwrite + lencopy) -
524 ((char *)buf->vb_buf + buf->length));
525 remain = (char *)buf->vb_buf + buf->length -
526 (char *)startwrite;
527 lencopy = remain;
528 }
529 if (lencopy <= 0)
530 break;
531
532 memcpy(startwrite, startread, lencopy);
533
534 remain -= lencopy;
535 }
536
537 buf->pos += len;
538}
539
540
541
542
543static void em28xx_copy_vbi(struct em28xx *dev,
544 struct em28xx_buffer *buf,
545 unsigned char *usb_buf,
546 unsigned long len)
547{
548 unsigned int offset;
549
550 if (buf->pos + len > buf->length)
551 len = buf->length - buf->pos;
552
553 offset = buf->pos;
554
555 if (buf->top_field == 0)
556 offset += dev->v4l2->vbi_width * dev->v4l2->vbi_height;
557
558 memcpy(buf->vb_buf + offset, usb_buf, len);
559 buf->pos += len;
560}
561
562static inline void print_err_status(struct em28xx *dev,
563 int packet, int status)
564{
565 char *errmsg = "Unknown";
566
567 switch (status) {
568 case -ENOENT:
569 errmsg = "unlinked synchronously";
570 break;
571 case -ECONNRESET:
572 errmsg = "unlinked asynchronously";
573 break;
574 case -ENOSR:
575 errmsg = "Buffer error (overrun)";
576 break;
577 case -EPIPE:
578 errmsg = "Stalled (device not responding)";
579 break;
580 case -EOVERFLOW:
581 errmsg = "Babble (bad cable?)";
582 break;
583 case -EPROTO:
584 errmsg = "Bit-stuff error (bad cable?)";
585 break;
586 case -EILSEQ:
587 errmsg = "CRC/Timeout (could be anything)";
588 break;
589 case -ETIME:
590 errmsg = "Device does not respond";
591 break;
592 }
593 if (packet < 0) {
594 em28xx_isocdbg("URB status %d [%s].\n", status, errmsg);
595 } else {
596 em28xx_isocdbg("URB packet %d, status %d [%s].\n",
597 packet, status, errmsg);
598 }
599}
600
601
602
603
604static inline struct em28xx_buffer *get_next_buf(struct em28xx *dev,
605 struct em28xx_dmaqueue *dma_q)
606{
607 struct em28xx_buffer *buf;
608
609 if (list_empty(&dma_q->active)) {
610 em28xx_isocdbg("No active queue to serve\n");
611 return NULL;
612 }
613
614
615 buf = list_entry(dma_q->active.next, struct em28xx_buffer, list);
616
617 list_del(&buf->list);
618 buf->pos = 0;
619 buf->vb_buf = buf->mem;
620
621 return buf;
622}
623
624
625
626
627static struct em28xx_buffer *
628finish_field_prepare_next(struct em28xx *dev,
629 struct em28xx_buffer *buf,
630 struct em28xx_dmaqueue *dma_q)
631{
632 struct em28xx_v4l2 *v4l2 = dev->v4l2;
633
634 if (v4l2->progressive || v4l2->top_field) {
635 if (buf)
636 finish_buffer(dev, buf);
637 buf = get_next_buf(dev, dma_q);
638 }
639 if (buf) {
640 buf->top_field = v4l2->top_field;
641 buf->pos = 0;
642 }
643
644 return buf;
645}
646
647
648
649
650static inline void process_frame_data_em28xx(struct em28xx *dev,
651 unsigned char *data_pkt,
652 unsigned int data_len)
653{
654 struct em28xx_v4l2 *v4l2 = dev->v4l2;
655 struct em28xx_buffer *buf = dev->usb_ctl.vid_buf;
656 struct em28xx_buffer *vbi_buf = dev->usb_ctl.vbi_buf;
657 struct em28xx_dmaqueue *dma_q = &dev->vidq;
658 struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq;
659
660
661
662
663
664
665
666 if (data_len >= 4) {
667
668
669
670
671 if (data_pkt[0] == 0x88 && data_pkt[1] == 0x88 &&
672 data_pkt[2] == 0x88 && data_pkt[3] == 0x88) {
673
674 data_pkt += 4;
675 data_len -= 4;
676 } else if (data_pkt[0] == 0x33 && data_pkt[1] == 0x95) {
677
678 v4l2->capture_type = 0;
679 v4l2->vbi_read = 0;
680 em28xx_isocdbg("VBI START HEADER !!!\n");
681 v4l2->top_field = !(data_pkt[2] & 1);
682 data_pkt += 4;
683 data_len -= 4;
684 } else if (data_pkt[0] == 0x22 && data_pkt[1] == 0x5a) {
685
686 v4l2->capture_type = 2;
687 em28xx_isocdbg("VIDEO START HEADER !!!\n");
688 v4l2->top_field = !(data_pkt[2] & 1);
689 data_pkt += 4;
690 data_len -= 4;
691 }
692 }
693
694
695
696
697
698 if (v4l2->capture_type == 0) {
699 vbi_buf = finish_field_prepare_next(dev, vbi_buf, vbi_dma_q);
700 dev->usb_ctl.vbi_buf = vbi_buf;
701 v4l2->capture_type = 1;
702 }
703
704 if (v4l2->capture_type == 1) {
705 int vbi_size = v4l2->vbi_width * v4l2->vbi_height;
706 int vbi_data_len = ((v4l2->vbi_read + data_len) > vbi_size) ?
707 (vbi_size - v4l2->vbi_read) : data_len;
708
709
710 if (vbi_buf)
711 em28xx_copy_vbi(dev, vbi_buf, data_pkt, vbi_data_len);
712 v4l2->vbi_read += vbi_data_len;
713
714 if (vbi_data_len < data_len) {
715
716 v4l2->capture_type = 2;
717 data_pkt += vbi_data_len;
718 data_len -= vbi_data_len;
719 }
720 }
721
722 if (v4l2->capture_type == 2) {
723 buf = finish_field_prepare_next(dev, buf, dma_q);
724 dev->usb_ctl.vid_buf = buf;
725 v4l2->capture_type = 3;
726 }
727
728 if (v4l2->capture_type == 3 && buf && data_len > 0)
729 em28xx_copy_video(dev, buf, data_pkt, data_len);
730}
731
732
733
734
735static inline void process_frame_data_em25xx(struct em28xx *dev,
736 unsigned char *data_pkt,
737 unsigned int data_len)
738{
739 struct em28xx_buffer *buf = dev->usb_ctl.vid_buf;
740 struct em28xx_dmaqueue *dmaq = &dev->vidq;
741 struct em28xx_v4l2 *v4l2 = dev->v4l2;
742 bool frame_end = false;
743
744
745
746
747
748
749 if (data_len >= 2) {
750 if ((data_pkt[0] == EM25XX_FRMDATAHDR_BYTE1) &&
751 ((data_pkt[1] & ~EM25XX_FRMDATAHDR_BYTE2_MASK) == 0x00)) {
752 v4l2->top_field = !(data_pkt[1] &
753 EM25XX_FRMDATAHDR_BYTE2_FRAME_ID);
754 frame_end = data_pkt[1] &
755 EM25XX_FRMDATAHDR_BYTE2_FRAME_END;
756 data_pkt += 2;
757 data_len -= 2;
758 }
759
760
761 if (dev->analog_xfer_bulk && frame_end) {
762 buf = finish_field_prepare_next(dev, buf, dmaq);
763 dev->usb_ctl.vid_buf = buf;
764 }
765
766
767
768
769
770 }
771
772
773 if (buf && data_len > 0)
774 em28xx_copy_video(dev, buf, data_pkt, data_len);
775
776
777 if (!dev->analog_xfer_bulk && frame_end) {
778 buf = finish_field_prepare_next(dev, buf, dmaq);
779 dev->usb_ctl.vid_buf = buf;
780 }
781
782
783
784
785
786
787
788
789
790
791
792
793}
794
795
796static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb)
797{
798 int xfer_bulk, num_packets, i;
799 unsigned char *usb_data_pkt;
800 unsigned int usb_data_len;
801
802 if (!dev)
803 return 0;
804
805 if (dev->disconnected)
806 return 0;
807
808 if (urb->status < 0)
809 print_err_status(dev, -1, urb->status);
810
811 xfer_bulk = usb_pipebulk(urb->pipe);
812
813 if (xfer_bulk)
814 num_packets = 1;
815 else
816 num_packets = urb->number_of_packets;
817
818 for (i = 0; i < num_packets; i++) {
819 if (xfer_bulk) {
820 usb_data_len = urb->actual_length;
821
822 usb_data_pkt = urb->transfer_buffer;
823 } else {
824 if (urb->iso_frame_desc[i].status < 0) {
825 print_err_status(dev, i,
826 urb->iso_frame_desc[i].status);
827 if (urb->iso_frame_desc[i].status != -EPROTO)
828 continue;
829 }
830
831 usb_data_len = urb->iso_frame_desc[i].actual_length;
832 if (usb_data_len > dev->max_pkt_size) {
833 em28xx_isocdbg("packet bigger than packet size");
834 continue;
835 }
836
837 usb_data_pkt = urb->transfer_buffer +
838 urb->iso_frame_desc[i].offset;
839 }
840
841 if (usb_data_len == 0) {
842
843
844 continue;
845 }
846
847 if (dev->is_em25xx)
848 process_frame_data_em25xx(dev,
849 usb_data_pkt, usb_data_len);
850 else
851 process_frame_data_em28xx(dev,
852 usb_data_pkt, usb_data_len);
853 }
854 return 1;
855}
856
857static int get_resource(enum v4l2_buf_type f_type)
858{
859 switch (f_type) {
860 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
861 return EM28XX_RESOURCE_VIDEO;
862 case V4L2_BUF_TYPE_VBI_CAPTURE:
863 return EM28XX_RESOURCE_VBI;
864 default:
865 WARN_ON(1);
866 return -1;
867 }
868}
869
870
871static int res_get(struct em28xx *dev, enum v4l2_buf_type f_type)
872{
873 int res_type = get_resource(f_type);
874
875
876 if (dev->resources & res_type) {
877
878 return -EBUSY;
879 }
880
881
882 dev->resources |= res_type;
883 em28xx_videodbg("res: get %d\n", res_type);
884 return 0;
885}
886
887static void res_free(struct em28xx *dev, enum v4l2_buf_type f_type)
888{
889 int res_type = get_resource(f_type);
890
891 dev->resources &= ~res_type;
892 em28xx_videodbg("res: put %d\n", res_type);
893}
894
895static void em28xx_v4l2_media_release(struct em28xx *dev)
896{
897#ifdef CONFIG_MEDIA_CONTROLLER
898 int i;
899
900 for (i = 0; i < MAX_EM28XX_INPUT; i++) {
901 if (!INPUT(i)->type)
902 return;
903 media_device_unregister_entity(&dev->input_ent[i]);
904 }
905#endif
906}
907
908
909
910
911
912static int em28xx_enable_analog_tuner(struct em28xx *dev)
913{
914#ifdef CONFIG_MEDIA_CONTROLLER
915 struct media_device *mdev = dev->media_dev;
916 struct em28xx_v4l2 *v4l2 = dev->v4l2;
917 struct media_entity *source;
918 struct media_link *link, *found_link = NULL;
919 int ret, active_links = 0;
920
921 if (!mdev || !v4l2->decoder)
922 return 0;
923
924
925
926
927
928
929
930
931 list_for_each_entry(link, &v4l2->decoder->links, list) {
932 if (link->sink->entity == v4l2->decoder) {
933 found_link = link;
934 if (link->flags & MEDIA_LNK_FL_ENABLED)
935 active_links++;
936 break;
937 }
938 }
939
940 if (active_links == 1 || !found_link)
941 return 0;
942
943 source = found_link->source->entity;
944 list_for_each_entry(link, &source->links, list) {
945 struct media_entity *sink;
946 int flags = 0;
947
948 sink = link->sink->entity;
949
950 if (sink == v4l2->decoder)
951 flags = MEDIA_LNK_FL_ENABLED;
952
953 ret = media_entity_setup_link(link, flags);
954 if (ret) {
955 dev_err(&dev->intf->dev,
956 "Couldn't change link %s->%s to %s. Error %d\n",
957 source->name, sink->name,
958 flags ? "enabled" : "disabled",
959 ret);
960 return ret;
961 }
962
963 em28xx_videodbg("link %s->%s was %s\n",
964 source->name, sink->name,
965 flags ? "ENABLED" : "disabled");
966 }
967#endif
968 return 0;
969}
970
971static const char * const iname[] = {
972 [EM28XX_VMUX_COMPOSITE] = "Composite",
973 [EM28XX_VMUX_SVIDEO] = "S-Video",
974 [EM28XX_VMUX_TELEVISION] = "Television",
975 [EM28XX_RADIO] = "Radio",
976};
977
978static void em28xx_v4l2_create_entities(struct em28xx *dev)
979{
980#if defined(CONFIG_MEDIA_CONTROLLER)
981 struct em28xx_v4l2 *v4l2 = dev->v4l2;
982 int ret, i;
983
984
985 v4l2->video_pad.flags = MEDIA_PAD_FL_SINK;
986 ret = media_entity_pads_init(&v4l2->vdev.entity, 1, &v4l2->video_pad);
987 if (ret < 0)
988 dev_err(&dev->intf->dev,
989 "failed to initialize video media entity!\n");
990
991 if (em28xx_vbi_supported(dev)) {
992 v4l2->vbi_pad.flags = MEDIA_PAD_FL_SINK;
993 ret = media_entity_pads_init(&v4l2->vbi_dev.entity, 1,
994 &v4l2->vbi_pad);
995 if (ret < 0)
996 dev_err(&dev->intf->dev,
997 "failed to initialize vbi media entity!\n");
998 }
999
1000
1001 if (dev->is_webcam)
1002 return;
1003
1004
1005 for (i = 0; i < MAX_EM28XX_INPUT; i++) {
1006 struct media_entity *ent = &dev->input_ent[i];
1007
1008 if (!INPUT(i)->type)
1009 break;
1010
1011 ent->name = iname[INPUT(i)->type];
1012 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1013 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1014
1015 switch (INPUT(i)->type) {
1016 case EM28XX_VMUX_COMPOSITE:
1017 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1018 break;
1019 case EM28XX_VMUX_SVIDEO:
1020 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1021 break;
1022 default:
1023 if (dev->tuner_type != TUNER_ABSENT)
1024 ent->function = MEDIA_ENT_F_CONN_RF;
1025 break;
1026 }
1027
1028 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1029 if (ret < 0)
1030 dev_err(&dev->intf->dev,
1031 "failed to initialize input pad[%d]!\n", i);
1032
1033 ret = media_device_register_entity(dev->media_dev, ent);
1034 if (ret < 0)
1035 dev_err(&dev->intf->dev,
1036 "failed to register input entity %d!\n", i);
1037 }
1038#endif
1039}
1040
1041
1042
1043
1044
1045static int queue_setup(struct vb2_queue *vq,
1046 unsigned int *nbuffers, unsigned int *nplanes,
1047 unsigned int sizes[], struct device *alloc_devs[])
1048{
1049 struct em28xx *dev = vb2_get_drv_priv(vq);
1050 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1051 unsigned long size =
1052 (v4l2->width * v4l2->height * v4l2->format->depth + 7) >> 3;
1053
1054 if (*nplanes)
1055 return sizes[0] < size ? -EINVAL : 0;
1056 *nplanes = 1;
1057 sizes[0] = size;
1058
1059 em28xx_enable_analog_tuner(dev);
1060
1061 return 0;
1062}
1063
1064static int
1065buffer_prepare(struct vb2_buffer *vb)
1066{
1067 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1068 struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue);
1069 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1070 unsigned long size;
1071
1072 em28xx_videodbg("%s, field=%d\n", __func__, vbuf->field);
1073
1074 size = (v4l2->width * v4l2->height * v4l2->format->depth + 7) >> 3;
1075
1076 if (vb2_plane_size(vb, 0) < size) {
1077 em28xx_videodbg("%s data will not fit into plane (%lu < %lu)\n",
1078 __func__, vb2_plane_size(vb, 0), size);
1079 return -EINVAL;
1080 }
1081 vb2_set_plane_payload(vb, 0, size);
1082
1083 return 0;
1084}
1085
1086int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
1087{
1088 struct em28xx *dev = vb2_get_drv_priv(vq);
1089 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1090 struct v4l2_frequency f;
1091 struct v4l2_fh *owner;
1092 int rc = 0;
1093
1094 em28xx_videodbg("%s\n", __func__);
1095
1096 dev->v4l2->field_count = 0;
1097
1098
1099
1100
1101
1102 rc = res_get(dev, vq->type);
1103 if (rc)
1104 return rc;
1105
1106 if (v4l2->streaming_users == 0) {
1107
1108
1109
1110 em28xx_set_alternate(dev);
1111
1112
1113
1114
1115
1116 em28xx_wake_i2c(dev);
1117
1118 v4l2->capture_type = -1;
1119 rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE,
1120 dev->analog_xfer_bulk,
1121 EM28XX_NUM_BUFS,
1122 dev->max_pkt_size,
1123 dev->packet_multiplier,
1124 em28xx_urb_data_copy);
1125 if (rc < 0)
1126 return rc;
1127
1128
1129
1130
1131
1132
1133
1134
1135 memset(&f, 0, sizeof(f));
1136 f.frequency = v4l2->frequency;
1137 owner = (struct v4l2_fh *)vq->owner;
1138 if (owner && owner->vdev->vfl_type == VFL_TYPE_RADIO)
1139 f.type = V4L2_TUNER_RADIO;
1140 else
1141 f.type = V4L2_TUNER_ANALOG_TV;
1142 v4l2_device_call_all(&v4l2->v4l2_dev,
1143 0, tuner, s_frequency, &f);
1144
1145
1146 v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_stream, 1);
1147 }
1148
1149 v4l2->streaming_users++;
1150
1151 return rc;
1152}
1153
1154static void em28xx_stop_streaming(struct vb2_queue *vq)
1155{
1156 struct em28xx *dev = vb2_get_drv_priv(vq);
1157 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1158 struct em28xx_dmaqueue *vidq = &dev->vidq;
1159 unsigned long flags = 0;
1160
1161 em28xx_videodbg("%s\n", __func__);
1162
1163 res_free(dev, vq->type);
1164
1165 if (v4l2->streaming_users-- == 1) {
1166
1167 v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_stream, 0);
1168
1169
1170 em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
1171 }
1172
1173 spin_lock_irqsave(&dev->slock, flags);
1174 if (dev->usb_ctl.vid_buf) {
1175 vb2_buffer_done(&dev->usb_ctl.vid_buf->vb.vb2_buf,
1176 VB2_BUF_STATE_ERROR);
1177 dev->usb_ctl.vid_buf = NULL;
1178 }
1179 while (!list_empty(&vidq->active)) {
1180 struct em28xx_buffer *buf;
1181
1182 buf = list_entry(vidq->active.next, struct em28xx_buffer, list);
1183 list_del(&buf->list);
1184 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
1185 }
1186 spin_unlock_irqrestore(&dev->slock, flags);
1187}
1188
1189void em28xx_stop_vbi_streaming(struct vb2_queue *vq)
1190{
1191 struct em28xx *dev = vb2_get_drv_priv(vq);
1192 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1193 struct em28xx_dmaqueue *vbiq = &dev->vbiq;
1194 unsigned long flags = 0;
1195
1196 em28xx_videodbg("%s\n", __func__);
1197
1198 res_free(dev, vq->type);
1199
1200 if (v4l2->streaming_users-- == 1) {
1201
1202 v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_stream, 0);
1203
1204
1205 em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
1206 }
1207
1208 spin_lock_irqsave(&dev->slock, flags);
1209 if (dev->usb_ctl.vbi_buf) {
1210 vb2_buffer_done(&dev->usb_ctl.vbi_buf->vb.vb2_buf,
1211 VB2_BUF_STATE_ERROR);
1212 dev->usb_ctl.vbi_buf = NULL;
1213 }
1214 while (!list_empty(&vbiq->active)) {
1215 struct em28xx_buffer *buf;
1216
1217 buf = list_entry(vbiq->active.next, struct em28xx_buffer, list);
1218 list_del(&buf->list);
1219 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
1220 }
1221 spin_unlock_irqrestore(&dev->slock, flags);
1222}
1223
1224static void
1225buffer_queue(struct vb2_buffer *vb)
1226{
1227 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1228 struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue);
1229 struct em28xx_buffer *buf =
1230 container_of(vbuf, struct em28xx_buffer, vb);
1231 struct em28xx_dmaqueue *vidq = &dev->vidq;
1232 unsigned long flags = 0;
1233
1234 em28xx_videodbg("%s\n", __func__);
1235 buf->mem = vb2_plane_vaddr(vb, 0);
1236 buf->length = vb2_plane_size(vb, 0);
1237
1238 spin_lock_irqsave(&dev->slock, flags);
1239 list_add_tail(&buf->list, &vidq->active);
1240 spin_unlock_irqrestore(&dev->slock, flags);
1241}
1242
1243static const struct vb2_ops em28xx_video_qops = {
1244 .queue_setup = queue_setup,
1245 .buf_prepare = buffer_prepare,
1246 .buf_queue = buffer_queue,
1247 .start_streaming = em28xx_start_analog_streaming,
1248 .stop_streaming = em28xx_stop_streaming,
1249 .wait_prepare = vb2_ops_wait_prepare,
1250 .wait_finish = vb2_ops_wait_finish,
1251};
1252
1253static int em28xx_vb2_setup(struct em28xx *dev)
1254{
1255 int rc;
1256 struct vb2_queue *q;
1257 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1258
1259
1260 q = &v4l2->vb_vidq;
1261 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1262 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1263 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1264 q->drv_priv = dev;
1265 q->buf_struct_size = sizeof(struct em28xx_buffer);
1266 q->ops = &em28xx_video_qops;
1267 q->mem_ops = &vb2_vmalloc_memops;
1268
1269 rc = vb2_queue_init(q);
1270 if (rc < 0)
1271 return rc;
1272
1273
1274 q = &v4l2->vb_vbiq;
1275 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1276 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
1277 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1278 q->drv_priv = dev;
1279 q->buf_struct_size = sizeof(struct em28xx_buffer);
1280 q->ops = &em28xx_vbi_qops;
1281 q->mem_ops = &vb2_vmalloc_memops;
1282
1283 rc = vb2_queue_init(q);
1284 if (rc < 0)
1285 return rc;
1286
1287 return 0;
1288}
1289
1290
1291
1292
1293
1294static void video_mux(struct em28xx *dev, int index)
1295{
1296 struct v4l2_device *v4l2_dev = &dev->v4l2->v4l2_dev;
1297
1298 dev->ctl_input = index;
1299 dev->ctl_ainput = INPUT(index)->amux;
1300 dev->ctl_aoutput = INPUT(index)->aout;
1301
1302 if (!dev->ctl_aoutput)
1303 dev->ctl_aoutput = EM28XX_AOUT_MASTER;
1304
1305 v4l2_device_call_all(v4l2_dev, 0, video, s_routing,
1306 INPUT(index)->vmux, 0, 0);
1307
1308 if (dev->has_msp34xx) {
1309 if (dev->i2s_speed) {
1310 v4l2_device_call_all(v4l2_dev, 0, audio,
1311 s_i2s_clock_freq, dev->i2s_speed);
1312 }
1313
1314 v4l2_device_call_all(v4l2_dev, 0, audio, s_routing,
1315 dev->ctl_ainput,
1316 MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
1317 }
1318
1319 if (dev->board.adecoder != EM28XX_NOADECODER) {
1320 v4l2_device_call_all(v4l2_dev, 0, audio, s_routing,
1321 dev->ctl_ainput, dev->ctl_aoutput, 0);
1322 }
1323
1324 em28xx_audio_analog_set(dev);
1325}
1326
1327static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
1328{
1329 struct em28xx *dev = priv;
1330
1331
1332
1333
1334
1335
1336
1337 switch (ctrl->id) {
1338 case V4L2_CID_AUDIO_MUTE:
1339 dev->mute = ctrl->val;
1340 em28xx_audio_analog_set(dev);
1341 break;
1342 case V4L2_CID_AUDIO_VOLUME:
1343 dev->volume = ctrl->val;
1344 em28xx_audio_analog_set(dev);
1345 break;
1346 }
1347}
1348
1349static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl)
1350{
1351 struct em28xx_v4l2 *v4l2 =
1352 container_of(ctrl->handler, struct em28xx_v4l2, ctrl_handler);
1353 struct em28xx *dev = v4l2->dev;
1354 int ret = -EINVAL;
1355
1356 switch (ctrl->id) {
1357 case V4L2_CID_AUDIO_MUTE:
1358 dev->mute = ctrl->val;
1359 ret = em28xx_audio_analog_set(dev);
1360 break;
1361 case V4L2_CID_AUDIO_VOLUME:
1362 dev->volume = ctrl->val;
1363 ret = em28xx_audio_analog_set(dev);
1364 break;
1365 case V4L2_CID_CONTRAST:
1366 ret = em28xx_write_reg(dev, EM28XX_R20_YGAIN, ctrl->val);
1367 break;
1368 case V4L2_CID_BRIGHTNESS:
1369 ret = em28xx_write_reg(dev, EM28XX_R21_YOFFSET, ctrl->val);
1370 break;
1371 case V4L2_CID_SATURATION:
1372 ret = em28xx_write_reg(dev, EM28XX_R22_UVGAIN, ctrl->val);
1373 break;
1374 case V4L2_CID_BLUE_BALANCE:
1375 ret = em28xx_write_reg(dev, EM28XX_R23_UOFFSET, ctrl->val);
1376 break;
1377 case V4L2_CID_RED_BALANCE:
1378 ret = em28xx_write_reg(dev, EM28XX_R24_VOFFSET, ctrl->val);
1379 break;
1380 case V4L2_CID_SHARPNESS:
1381 ret = em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, ctrl->val);
1382 break;
1383 }
1384
1385 return (ret < 0) ? ret : 0;
1386}
1387
1388static const struct v4l2_ctrl_ops em28xx_ctrl_ops = {
1389 .s_ctrl = em28xx_s_ctrl,
1390};
1391
1392static void size_to_scale(struct em28xx *dev,
1393 unsigned int width, unsigned int height,
1394 unsigned int *hscale, unsigned int *vscale)
1395{
1396 unsigned int maxw = norm_maxw(dev);
1397 unsigned int maxh = norm_maxh(dev);
1398
1399 *hscale = (((unsigned long)maxw) << 12) / width - 4096L;
1400 if (*hscale > EM28XX_HVSCALE_MAX)
1401 *hscale = EM28XX_HVSCALE_MAX;
1402
1403 *vscale = (((unsigned long)maxh) << 12) / height - 4096L;
1404 if (*vscale > EM28XX_HVSCALE_MAX)
1405 *vscale = EM28XX_HVSCALE_MAX;
1406}
1407
1408static void scale_to_size(struct em28xx *dev,
1409 unsigned int hscale, unsigned int vscale,
1410 unsigned int *width, unsigned int *height)
1411{
1412 unsigned int maxw = norm_maxw(dev);
1413 unsigned int maxh = norm_maxh(dev);
1414
1415 *width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
1416 *height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
1417
1418
1419 if (*width < 1)
1420 *width = 1;
1421 if (*height < 1)
1422 *height = 1;
1423}
1424
1425
1426
1427
1428
1429static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1430 struct v4l2_format *f)
1431{
1432 struct em28xx *dev = video_drvdata(file);
1433 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1434
1435 f->fmt.pix.width = v4l2->width;
1436 f->fmt.pix.height = v4l2->height;
1437 f->fmt.pix.pixelformat = v4l2->format->fourcc;
1438 f->fmt.pix.bytesperline = (v4l2->width * v4l2->format->depth + 7) >> 3;
1439 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * v4l2->height;
1440 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1441
1442
1443 if (v4l2->progressive)
1444 f->fmt.pix.field = V4L2_FIELD_NONE;
1445 else
1446 f->fmt.pix.field = v4l2->interlaced_fieldmode ?
1447 V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1448 return 0;
1449}
1450
1451static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc)
1452{
1453 unsigned int i;
1454
1455 for (i = 0; i < ARRAY_SIZE(format); i++)
1456 if (format[i].fourcc == fourcc)
1457 return &format[i];
1458
1459 return NULL;
1460}
1461
1462static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1463 struct v4l2_format *f)
1464{
1465 struct em28xx *dev = video_drvdata(file);
1466 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1467 unsigned int width = f->fmt.pix.width;
1468 unsigned int height = f->fmt.pix.height;
1469 unsigned int maxw = norm_maxw(dev);
1470 unsigned int maxh = norm_maxh(dev);
1471 unsigned int hscale, vscale;
1472 struct em28xx_fmt *fmt;
1473
1474 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1475 if (!fmt) {
1476 fmt = &format[0];
1477 em28xx_videodbg("Fourcc format (%08x) invalid. Using default (%08x).\n",
1478 f->fmt.pix.pixelformat, fmt->fourcc);
1479 }
1480
1481 if (dev->board.is_em2800) {
1482
1483 height = height > (3 * maxh / 4) ? maxh : maxh / 2;
1484 width = width > (3 * maxw / 4) ? maxw : maxw / 2;
1485
1486
1487
1488
1489
1490 if (width == maxw && height == maxh)
1491 width /= 2;
1492 } else {
1493
1494
1495
1496
1497 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh,
1498 1, 0);
1499 }
1500
1501 if (width < 1)
1502 width = 1;
1503 if (height < 1)
1504 height = 1;
1505
1506 size_to_scale(dev, width, height, &hscale, &vscale);
1507 scale_to_size(dev, hscale, vscale, &width, &height);
1508
1509 f->fmt.pix.width = width;
1510 f->fmt.pix.height = height;
1511 f->fmt.pix.pixelformat = fmt->fourcc;
1512 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
1513 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1514 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1515 if (v4l2->progressive)
1516 f->fmt.pix.field = V4L2_FIELD_NONE;
1517 else
1518 f->fmt.pix.field = v4l2->interlaced_fieldmode ?
1519 V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1520 f->fmt.pix.priv = 0;
1521
1522 return 0;
1523}
1524
1525static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
1526 unsigned int width, unsigned int height)
1527{
1528 struct em28xx_fmt *fmt;
1529 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1530
1531 fmt = format_by_fourcc(fourcc);
1532 if (!fmt)
1533 return -EINVAL;
1534
1535 v4l2->format = fmt;
1536 v4l2->width = width;
1537 v4l2->height = height;
1538
1539
1540 size_to_scale(dev, v4l2->width, v4l2->height,
1541 &v4l2->hscale, &v4l2->vscale);
1542
1543 em28xx_resolution_set(dev);
1544
1545 return 0;
1546}
1547
1548static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1549 struct v4l2_format *f)
1550{
1551 struct em28xx *dev = video_drvdata(file);
1552 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1553
1554 if (vb2_is_busy(&v4l2->vb_vidq))
1555 return -EBUSY;
1556
1557 vidioc_try_fmt_vid_cap(file, priv, f);
1558
1559 return em28xx_set_video_format(dev, f->fmt.pix.pixelformat,
1560 f->fmt.pix.width, f->fmt.pix.height);
1561}
1562
1563static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1564{
1565 struct em28xx *dev = video_drvdata(file);
1566
1567 *norm = dev->v4l2->norm;
1568
1569 return 0;
1570}
1571
1572static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm)
1573{
1574 struct em28xx *dev = video_drvdata(file);
1575
1576 v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, video, querystd, norm);
1577
1578 return 0;
1579}
1580
1581static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1582{
1583 struct em28xx *dev = video_drvdata(file);
1584 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1585 struct v4l2_format f;
1586
1587 if (norm == v4l2->norm)
1588 return 0;
1589
1590 if (v4l2->streaming_users > 0)
1591 return -EBUSY;
1592
1593 v4l2->norm = norm;
1594
1595
1596 f.fmt.pix.width = 720;
1597 f.fmt.pix.height = (norm & V4L2_STD_525_60) ? 480 : 576;
1598 vidioc_try_fmt_vid_cap(file, priv, &f);
1599
1600
1601 v4l2->width = f.fmt.pix.width;
1602 v4l2->height = f.fmt.pix.height;
1603 size_to_scale(dev, v4l2->width, v4l2->height,
1604 &v4l2->hscale, &v4l2->vscale);
1605
1606 em28xx_resolution_set(dev);
1607 v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_std, v4l2->norm);
1608
1609 return 0;
1610}
1611
1612static int vidioc_g_parm(struct file *file, void *priv,
1613 struct v4l2_streamparm *p)
1614{
1615 struct v4l2_subdev_frame_interval ival = { 0 };
1616 struct em28xx *dev = video_drvdata(file);
1617 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1618 int rc = 0;
1619
1620 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1621 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1622 return -EINVAL;
1623
1624 p->parm.capture.readbuffers = EM28XX_MIN_BUF;
1625 p->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1626 if (dev->is_webcam) {
1627 rc = v4l2_device_call_until_err(&v4l2->v4l2_dev, 0,
1628 video, g_frame_interval, &ival);
1629 if (!rc)
1630 p->parm.capture.timeperframe = ival.interval;
1631 } else {
1632 v4l2_video_std_frame_period(v4l2->norm,
1633 &p->parm.capture.timeperframe);
1634 }
1635
1636 return rc;
1637}
1638
1639static int vidioc_s_parm(struct file *file, void *priv,
1640 struct v4l2_streamparm *p)
1641{
1642 struct em28xx *dev = video_drvdata(file);
1643 struct v4l2_subdev_frame_interval ival = {
1644 0,
1645 p->parm.capture.timeperframe
1646 };
1647 int rc = 0;
1648
1649 if (!dev->is_webcam)
1650 return -ENOTTY;
1651
1652 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1653 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1654 return -EINVAL;
1655
1656 memset(&p->parm, 0, sizeof(p->parm));
1657 p->parm.capture.readbuffers = EM28XX_MIN_BUF;
1658 p->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1659 rc = v4l2_device_call_until_err(&dev->v4l2->v4l2_dev, 0,
1660 video, s_frame_interval, &ival);
1661 if (!rc)
1662 p->parm.capture.timeperframe = ival.interval;
1663 return rc;
1664}
1665
1666static int vidioc_enum_input(struct file *file, void *priv,
1667 struct v4l2_input *i)
1668{
1669 struct em28xx *dev = video_drvdata(file);
1670 unsigned int n;
1671 int j;
1672
1673 n = i->index;
1674 if (n >= MAX_EM28XX_INPUT)
1675 return -EINVAL;
1676 if (!INPUT(n)->type)
1677 return -EINVAL;
1678
1679 i->type = V4L2_INPUT_TYPE_CAMERA;
1680
1681 strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name));
1682
1683 if (INPUT(n)->type == EM28XX_VMUX_TELEVISION)
1684 i->type = V4L2_INPUT_TYPE_TUNER;
1685
1686 i->std = dev->v4l2->vdev.tvnorms;
1687
1688 if (dev->is_webcam)
1689 i->capabilities = 0;
1690
1691
1692 i->audioset = 0;
1693 for (j = 0; j < MAX_EM28XX_INPUT; j++)
1694 if (dev->amux_map[j] != EM28XX_AMUX_UNUSED)
1695 i->audioset |= 1 << j;
1696
1697 return 0;
1698}
1699
1700static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1701{
1702 struct em28xx *dev = video_drvdata(file);
1703
1704 *i = dev->ctl_input;
1705
1706 return 0;
1707}
1708
1709static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1710{
1711 struct em28xx *dev = video_drvdata(file);
1712
1713 if (i >= MAX_EM28XX_INPUT)
1714 return -EINVAL;
1715 if (!INPUT(i)->type)
1716 return -EINVAL;
1717
1718 video_mux(dev, i);
1719 return 0;
1720}
1721
1722static int em28xx_fill_audio_input(struct em28xx *dev,
1723 const char *s,
1724 struct v4l2_audio *a,
1725 unsigned int index)
1726{
1727 unsigned int idx = dev->amux_map[index];
1728
1729
1730
1731
1732
1733
1734
1735
1736 if (dev->has_msp34xx && idx != EM28XX_AMUX_UNUSED)
1737 idx = EM28XX_AMUX_LINE_IN;
1738
1739 switch (idx) {
1740 case EM28XX_AMUX_VIDEO:
1741 strscpy(a->name, "Television", sizeof(a->name));
1742 break;
1743 case EM28XX_AMUX_LINE_IN:
1744 strscpy(a->name, "Line In", sizeof(a->name));
1745 break;
1746 case EM28XX_AMUX_VIDEO2:
1747 strscpy(a->name, "Television alt", sizeof(a->name));
1748 break;
1749 case EM28XX_AMUX_PHONE:
1750 strscpy(a->name, "Phone", sizeof(a->name));
1751 break;
1752 case EM28XX_AMUX_MIC:
1753 strscpy(a->name, "Mic", sizeof(a->name));
1754 break;
1755 case EM28XX_AMUX_CD:
1756 strscpy(a->name, "CD", sizeof(a->name));
1757 break;
1758 case EM28XX_AMUX_AUX:
1759 strscpy(a->name, "Aux", sizeof(a->name));
1760 break;
1761 case EM28XX_AMUX_PCM_OUT:
1762 strscpy(a->name, "PCM", sizeof(a->name));
1763 break;
1764 case EM28XX_AMUX_UNUSED:
1765 default:
1766 return -EINVAL;
1767 }
1768 a->index = index;
1769 a->capability = V4L2_AUDCAP_STEREO;
1770
1771 em28xx_videodbg("%s: audio input index %d is '%s'\n",
1772 s, a->index, a->name);
1773
1774 return 0;
1775}
1776
1777static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
1778{
1779 struct em28xx *dev = video_drvdata(file);
1780
1781 if (a->index >= MAX_EM28XX_INPUT)
1782 return -EINVAL;
1783
1784 return em28xx_fill_audio_input(dev, __func__, a, a->index);
1785}
1786
1787static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1788{
1789 struct em28xx *dev = video_drvdata(file);
1790 int i;
1791
1792 for (i = 0; i < MAX_EM28XX_INPUT; i++)
1793 if (dev->ctl_ainput == dev->amux_map[i])
1794 return em28xx_fill_audio_input(dev, __func__, a, i);
1795
1796
1797 return -EINVAL;
1798}
1799
1800static int vidioc_s_audio(struct file *file, void *priv,
1801 const struct v4l2_audio *a)
1802{
1803 struct em28xx *dev = video_drvdata(file);
1804 int idx, i;
1805
1806 if (a->index >= MAX_EM28XX_INPUT)
1807 return -EINVAL;
1808
1809 idx = dev->amux_map[a->index];
1810
1811 if (idx == EM28XX_AMUX_UNUSED)
1812 return -EINVAL;
1813
1814 dev->ctl_ainput = idx;
1815
1816
1817
1818
1819
1820
1821
1822
1823 for (i = 0; i < MAX_EM28XX_INPUT; i++)
1824 if (idx == dev->amux_map[i])
1825 break;
1826 if (i == MAX_EM28XX_INPUT)
1827 return -EINVAL;
1828
1829 dev->ctl_aoutput = INPUT(i)->aout;
1830
1831 if (!dev->ctl_aoutput)
1832 dev->ctl_aoutput = EM28XX_AOUT_MASTER;
1833
1834 em28xx_videodbg("%s: set audio input to %d\n", __func__,
1835 dev->ctl_ainput);
1836
1837 return 0;
1838}
1839
1840static int vidioc_g_tuner(struct file *file, void *priv,
1841 struct v4l2_tuner *t)
1842{
1843 struct em28xx *dev = video_drvdata(file);
1844
1845 if (t->index != 0)
1846 return -EINVAL;
1847
1848 strscpy(t->name, "Tuner", sizeof(t->name));
1849
1850 v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, g_tuner, t);
1851 return 0;
1852}
1853
1854static int vidioc_s_tuner(struct file *file, void *priv,
1855 const struct v4l2_tuner *t)
1856{
1857 struct em28xx *dev = video_drvdata(file);
1858
1859 if (t->index != 0)
1860 return -EINVAL;
1861
1862 v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, s_tuner, t);
1863 return 0;
1864}
1865
1866static int vidioc_g_frequency(struct file *file, void *priv,
1867 struct v4l2_frequency *f)
1868{
1869 struct em28xx *dev = video_drvdata(file);
1870 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1871
1872 if (f->tuner != 0)
1873 return -EINVAL;
1874
1875 f->frequency = v4l2->frequency;
1876 return 0;
1877}
1878
1879static int vidioc_s_frequency(struct file *file, void *priv,
1880 const struct v4l2_frequency *f)
1881{
1882 struct v4l2_frequency new_freq = *f;
1883 struct em28xx *dev = video_drvdata(file);
1884 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1885
1886 if (f->tuner != 0)
1887 return -EINVAL;
1888
1889 v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, s_frequency, f);
1890 v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1891 v4l2->frequency = new_freq.frequency;
1892
1893 return 0;
1894}
1895
1896#ifdef CONFIG_VIDEO_ADV_DEBUG
1897static int vidioc_g_chip_info(struct file *file, void *priv,
1898 struct v4l2_dbg_chip_info *chip)
1899{
1900 struct em28xx *dev = video_drvdata(file);
1901
1902 if (chip->match.addr > 1)
1903 return -EINVAL;
1904 if (chip->match.addr == 1)
1905 strscpy(chip->name, "ac97", sizeof(chip->name));
1906 else
1907 strscpy(chip->name,
1908 dev->v4l2->v4l2_dev.name, sizeof(chip->name));
1909 return 0;
1910}
1911
1912static int em28xx_reg_len(int reg)
1913{
1914 switch (reg) {
1915 case EM28XX_R40_AC97LSB:
1916 case EM28XX_R30_HSCALELOW:
1917 case EM28XX_R32_VSCALELOW:
1918 return 2;
1919 default:
1920 return 1;
1921 }
1922}
1923
1924static int vidioc_g_register(struct file *file, void *priv,
1925 struct v4l2_dbg_register *reg)
1926{
1927 struct em28xx *dev = video_drvdata(file);
1928 int ret;
1929
1930 if (reg->match.addr > 1)
1931 return -EINVAL;
1932 if (reg->match.addr) {
1933 ret = em28xx_read_ac97(dev, reg->reg);
1934 if (ret < 0)
1935 return ret;
1936
1937 reg->val = ret;
1938 reg->size = 1;
1939 return 0;
1940 }
1941
1942
1943 reg->size = em28xx_reg_len(reg->reg);
1944 if (reg->size == 1) {
1945 ret = em28xx_read_reg(dev, reg->reg);
1946
1947 if (ret < 0)
1948 return ret;
1949
1950 reg->val = ret;
1951 } else {
1952 __le16 val = 0;
1953
1954 ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
1955 reg->reg, (char *)&val, 2);
1956 if (ret < 0)
1957 return ret;
1958
1959 reg->val = le16_to_cpu(val);
1960 }
1961
1962 return 0;
1963}
1964
1965static int vidioc_s_register(struct file *file, void *priv,
1966 const struct v4l2_dbg_register *reg)
1967{
1968 struct em28xx *dev = video_drvdata(file);
1969 __le16 buf;
1970
1971 if (reg->match.addr > 1)
1972 return -EINVAL;
1973 if (reg->match.addr)
1974 return em28xx_write_ac97(dev, reg->reg, reg->val);
1975
1976
1977 buf = cpu_to_le16(reg->val);
1978
1979 return em28xx_write_regs(dev, reg->reg, (char *)&buf,
1980 em28xx_reg_len(reg->reg));
1981}
1982#endif
1983
1984static int vidioc_querycap(struct file *file, void *priv,
1985 struct v4l2_capability *cap)
1986{
1987 struct em28xx *dev = video_drvdata(file);
1988 struct em28xx_v4l2 *v4l2 = dev->v4l2;
1989 struct usb_device *udev = interface_to_usbdev(dev->intf);
1990
1991 strscpy(cap->driver, "em28xx", sizeof(cap->driver));
1992 strscpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
1993 usb_make_path(udev, cap->bus_info, sizeof(cap->bus_info));
1994
1995 cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_READWRITE |
1996 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
1997 if (dev->int_audio_type != EM28XX_INT_AUDIO_NONE)
1998 cap->capabilities |= V4L2_CAP_AUDIO;
1999 if (dev->tuner_type != TUNER_ABSENT)
2000 cap->capabilities |= V4L2_CAP_TUNER;
2001 if (video_is_registered(&v4l2->vbi_dev))
2002 cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
2003 if (video_is_registered(&v4l2->radio_dev))
2004 cap->capabilities |= V4L2_CAP_RADIO;
2005 return 0;
2006}
2007
2008static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
2009 struct v4l2_fmtdesc *f)
2010{
2011 if (unlikely(f->index >= ARRAY_SIZE(format)))
2012 return -EINVAL;
2013
2014 strscpy(f->description, format[f->index].name, sizeof(f->description));
2015 f->pixelformat = format[f->index].fourcc;
2016
2017 return 0;
2018}
2019
2020static int vidioc_enum_framesizes(struct file *file, void *priv,
2021 struct v4l2_frmsizeenum *fsize)
2022{
2023 struct em28xx *dev = video_drvdata(file);
2024 struct em28xx_fmt *fmt;
2025 unsigned int maxw = norm_maxw(dev);
2026 unsigned int maxh = norm_maxh(dev);
2027
2028 fmt = format_by_fourcc(fsize->pixel_format);
2029 if (!fmt) {
2030 em28xx_videodbg("Fourcc format (%08x) invalid.\n",
2031 fsize->pixel_format);
2032 return -EINVAL;
2033 }
2034
2035 if (dev->board.is_em2800) {
2036 if (fsize->index > 1)
2037 return -EINVAL;
2038 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
2039 fsize->discrete.width = maxw / (1 + fsize->index);
2040 fsize->discrete.height = maxh / (1 + fsize->index);
2041 return 0;
2042 }
2043
2044 if (fsize->index != 0)
2045 return -EINVAL;
2046
2047
2048 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
2049 scale_to_size(dev, EM28XX_HVSCALE_MAX, EM28XX_HVSCALE_MAX,
2050 &fsize->stepwise.min_width, &fsize->stepwise.min_height);
2051 if (fsize->stepwise.min_width < 48)
2052 fsize->stepwise.min_width = 48;
2053 if (fsize->stepwise.min_height < 38)
2054 fsize->stepwise.min_height = 38;
2055 fsize->stepwise.max_width = maxw;
2056 fsize->stepwise.max_height = maxh;
2057 fsize->stepwise.step_width = 1;
2058 fsize->stepwise.step_height = 1;
2059 return 0;
2060}
2061
2062
2063
2064static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
2065 struct v4l2_format *format)
2066{
2067 struct em28xx *dev = video_drvdata(file);
2068 struct em28xx_v4l2 *v4l2 = dev->v4l2;
2069
2070 format->fmt.vbi.samples_per_line = v4l2->vbi_width;
2071 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
2072 format->fmt.vbi.offset = 0;
2073 format->fmt.vbi.flags = 0;
2074 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
2075 format->fmt.vbi.count[0] = v4l2->vbi_height;
2076 format->fmt.vbi.count[1] = v4l2->vbi_height;
2077 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
2078
2079
2080 if (v4l2->norm & V4L2_STD_525_60) {
2081
2082 format->fmt.vbi.start[0] = 10;
2083 format->fmt.vbi.start[1] = 273;
2084 } else if (v4l2->norm & V4L2_STD_625_50) {
2085
2086 format->fmt.vbi.start[0] = 6;
2087 format->fmt.vbi.start[1] = 318;
2088 }
2089
2090 return 0;
2091}
2092
2093
2094
2095
2096
2097static int radio_g_tuner(struct file *file, void *priv,
2098 struct v4l2_tuner *t)
2099{
2100 struct em28xx *dev = video_drvdata(file);
2101
2102 if (unlikely(t->index > 0))
2103 return -EINVAL;
2104
2105 strscpy(t->name, "Radio", sizeof(t->name));
2106
2107 v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, g_tuner, t);
2108
2109 return 0;
2110}
2111
2112static int radio_s_tuner(struct file *file, void *priv,
2113 const struct v4l2_tuner *t)
2114{
2115 struct em28xx *dev = video_drvdata(file);
2116
2117 if (t->index != 0)
2118 return -EINVAL;
2119
2120 v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, s_tuner, t);
2121
2122 return 0;
2123}
2124
2125
2126
2127
2128
2129
2130
2131
2132static void em28xx_free_v4l2(struct kref *ref)
2133{
2134 struct em28xx_v4l2 *v4l2 = container_of(ref, struct em28xx_v4l2, ref);
2135
2136 v4l2->dev->v4l2 = NULL;
2137 kfree(v4l2);
2138}
2139
2140
2141
2142
2143
2144static int em28xx_v4l2_open(struct file *filp)
2145{
2146 struct video_device *vdev = video_devdata(filp);
2147 struct em28xx *dev = video_drvdata(filp);
2148 struct em28xx_v4l2 *v4l2 = dev->v4l2;
2149 enum v4l2_buf_type fh_type = 0;
2150 int ret;
2151
2152 switch (vdev->vfl_type) {
2153 case VFL_TYPE_GRABBER:
2154 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2155 break;
2156 case VFL_TYPE_VBI:
2157 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
2158 break;
2159 case VFL_TYPE_RADIO:
2160 break;
2161 default:
2162 return -EINVAL;
2163 }
2164
2165 em28xx_videodbg("open dev=%s type=%s users=%d\n",
2166 video_device_node_name(vdev), v4l2_type_names[fh_type],
2167 v4l2->users);
2168
2169 if (mutex_lock_interruptible(&dev->lock))
2170 return -ERESTARTSYS;
2171
2172 ret = v4l2_fh_open(filp);
2173 if (ret) {
2174 dev_err(&dev->intf->dev,
2175 "%s: v4l2_fh_open() returned error %d\n",
2176 __func__, ret);
2177 mutex_unlock(&dev->lock);
2178 return ret;
2179 }
2180
2181 if (v4l2->users == 0) {
2182 em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
2183
2184 if (vdev->vfl_type != VFL_TYPE_RADIO)
2185 em28xx_resolution_set(dev);
2186
2187
2188
2189
2190
2191 em28xx_wake_i2c(dev);
2192 }
2193
2194 if (vdev->vfl_type == VFL_TYPE_RADIO) {
2195 em28xx_videodbg("video_open: setting radio device\n");
2196 v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, s_radio);
2197 }
2198
2199 kref_get(&dev->ref);
2200 kref_get(&v4l2->ref);
2201 v4l2->users++;
2202
2203 mutex_unlock(&dev->lock);
2204
2205 return 0;
2206}
2207
2208
2209
2210
2211
2212
2213static int em28xx_v4l2_fini(struct em28xx *dev)
2214{
2215 struct em28xx_v4l2 *v4l2 = dev->v4l2;
2216
2217 if (dev->is_audio_only) {
2218
2219 return 0;
2220 }
2221
2222 if (!dev->has_video) {
2223
2224 return 0;
2225 }
2226
2227 if (!v4l2)
2228 return 0;
2229
2230 dev_info(&dev->intf->dev, "Closing video extension\n");
2231
2232 mutex_lock(&dev->lock);
2233
2234 v4l2_device_disconnect(&v4l2->v4l2_dev);
2235
2236 em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
2237
2238 em28xx_v4l2_media_release(dev);
2239
2240 if (video_is_registered(&v4l2->radio_dev)) {
2241 dev_info(&dev->intf->dev, "V4L2 device %s deregistered\n",
2242 video_device_node_name(&v4l2->radio_dev));
2243 video_unregister_device(&v4l2->radio_dev);
2244 }
2245 if (video_is_registered(&v4l2->vbi_dev)) {
2246 dev_info(&dev->intf->dev, "V4L2 device %s deregistered\n",
2247 video_device_node_name(&v4l2->vbi_dev));
2248 video_unregister_device(&v4l2->vbi_dev);
2249 }
2250 if (video_is_registered(&v4l2->vdev)) {
2251 dev_info(&dev->intf->dev, "V4L2 device %s deregistered\n",
2252 video_device_node_name(&v4l2->vdev));
2253 video_unregister_device(&v4l2->vdev);
2254 }
2255
2256 v4l2_ctrl_handler_free(&v4l2->ctrl_handler);
2257 v4l2_device_unregister(&v4l2->v4l2_dev);
2258
2259 kref_put(&v4l2->ref, em28xx_free_v4l2);
2260
2261 mutex_unlock(&dev->lock);
2262
2263 kref_put(&dev->ref, em28xx_free_device);
2264
2265 return 0;
2266}
2267
2268static int em28xx_v4l2_suspend(struct em28xx *dev)
2269{
2270 if (dev->is_audio_only)
2271 return 0;
2272
2273 if (!dev->has_video)
2274 return 0;
2275
2276 dev_info(&dev->intf->dev, "Suspending video extension\n");
2277 em28xx_stop_urbs(dev);
2278 return 0;
2279}
2280
2281static int em28xx_v4l2_resume(struct em28xx *dev)
2282{
2283 if (dev->is_audio_only)
2284 return 0;
2285
2286 if (!dev->has_video)
2287 return 0;
2288
2289 dev_info(&dev->intf->dev, "Resuming video extension\n");
2290
2291 return 0;
2292}
2293
2294
2295
2296
2297
2298
2299static int em28xx_v4l2_close(struct file *filp)
2300{
2301 struct em28xx *dev = video_drvdata(filp);
2302 struct em28xx_v4l2 *v4l2 = dev->v4l2;
2303 struct usb_device *udev = interface_to_usbdev(dev->intf);
2304 int err;
2305
2306 em28xx_videodbg("users=%d\n", v4l2->users);
2307
2308 vb2_fop_release(filp);
2309 mutex_lock(&dev->lock);
2310
2311 if (v4l2->users == 1) {
2312
2313 if (dev->disconnected)
2314 goto exit;
2315
2316
2317 v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, standby);
2318
2319
2320 em28xx_set_mode(dev, EM28XX_SUSPEND);
2321
2322
2323 dev->alt = 0;
2324 em28xx_videodbg("setting alternate 0\n");
2325 err = usb_set_interface(udev, 0, 0);
2326 if (err < 0) {
2327 dev_err(&dev->intf->dev,
2328 "cannot change alternate number to 0 (error=%i)\n",
2329 err);
2330 }
2331 }
2332
2333exit:
2334 v4l2->users--;
2335 kref_put(&v4l2->ref, em28xx_free_v4l2);
2336 mutex_unlock(&dev->lock);
2337 kref_put(&dev->ref, em28xx_free_device);
2338
2339 return 0;
2340}
2341
2342static const struct v4l2_file_operations em28xx_v4l_fops = {
2343 .owner = THIS_MODULE,
2344 .open = em28xx_v4l2_open,
2345 .release = em28xx_v4l2_close,
2346 .read = vb2_fop_read,
2347 .poll = vb2_fop_poll,
2348 .mmap = vb2_fop_mmap,
2349 .unlocked_ioctl = video_ioctl2,
2350};
2351
2352static const struct v4l2_ioctl_ops video_ioctl_ops = {
2353 .vidioc_querycap = vidioc_querycap,
2354 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2355 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2356 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2357 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2358 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2359 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2360 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2361 .vidioc_enum_framesizes = vidioc_enum_framesizes,
2362 .vidioc_enumaudio = vidioc_enumaudio,
2363 .vidioc_g_audio = vidioc_g_audio,
2364 .vidioc_s_audio = vidioc_s_audio,
2365
2366 .vidioc_reqbufs = vb2_ioctl_reqbufs,
2367 .vidioc_create_bufs = vb2_ioctl_create_bufs,
2368 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
2369 .vidioc_querybuf = vb2_ioctl_querybuf,
2370 .vidioc_qbuf = vb2_ioctl_qbuf,
2371 .vidioc_dqbuf = vb2_ioctl_dqbuf,
2372
2373 .vidioc_g_std = vidioc_g_std,
2374 .vidioc_querystd = vidioc_querystd,
2375 .vidioc_s_std = vidioc_s_std,
2376 .vidioc_g_parm = vidioc_g_parm,
2377 .vidioc_s_parm = vidioc_s_parm,
2378 .vidioc_enum_input = vidioc_enum_input,
2379 .vidioc_g_input = vidioc_g_input,
2380 .vidioc_s_input = vidioc_s_input,
2381 .vidioc_streamon = vb2_ioctl_streamon,
2382 .vidioc_streamoff = vb2_ioctl_streamoff,
2383 .vidioc_g_tuner = vidioc_g_tuner,
2384 .vidioc_s_tuner = vidioc_s_tuner,
2385 .vidioc_g_frequency = vidioc_g_frequency,
2386 .vidioc_s_frequency = vidioc_s_frequency,
2387 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2388 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2389#ifdef CONFIG_VIDEO_ADV_DEBUG
2390 .vidioc_g_chip_info = vidioc_g_chip_info,
2391 .vidioc_g_register = vidioc_g_register,
2392 .vidioc_s_register = vidioc_s_register,
2393#endif
2394};
2395
2396static const struct video_device em28xx_video_template = {
2397 .fops = &em28xx_v4l_fops,
2398 .ioctl_ops = &video_ioctl_ops,
2399 .release = video_device_release_empty,
2400 .tvnorms = V4L2_STD_ALL,
2401};
2402
2403static const struct v4l2_file_operations radio_fops = {
2404 .owner = THIS_MODULE,
2405 .open = em28xx_v4l2_open,
2406 .release = em28xx_v4l2_close,
2407 .unlocked_ioctl = video_ioctl2,
2408};
2409
2410static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2411 .vidioc_querycap = vidioc_querycap,
2412 .vidioc_g_tuner = radio_g_tuner,
2413 .vidioc_s_tuner = radio_s_tuner,
2414 .vidioc_g_frequency = vidioc_g_frequency,
2415 .vidioc_s_frequency = vidioc_s_frequency,
2416 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2417 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2418#ifdef CONFIG_VIDEO_ADV_DEBUG
2419 .vidioc_g_chip_info = vidioc_g_chip_info,
2420 .vidioc_g_register = vidioc_g_register,
2421 .vidioc_s_register = vidioc_s_register,
2422#endif
2423};
2424
2425static struct video_device em28xx_radio_template = {
2426 .fops = &radio_fops,
2427 .ioctl_ops = &radio_ioctl_ops,
2428 .release = video_device_release_empty,
2429};
2430
2431
2432static unsigned short saa711x_addrs[] = {
2433 0x4a >> 1, 0x48 >> 1,
2434 0x42 >> 1, 0x40 >> 1,
2435 I2C_CLIENT_END };
2436
2437static unsigned short tvp5150_addrs[] = {
2438 0xb8 >> 1,
2439 0xba >> 1,
2440 I2C_CLIENT_END
2441};
2442
2443static unsigned short msp3400_addrs[] = {
2444 0x80 >> 1,
2445 0x88 >> 1,
2446 I2C_CLIENT_END
2447};
2448
2449
2450
2451static void em28xx_vdev_init(struct em28xx *dev,
2452 struct video_device *vfd,
2453 const struct video_device *template,
2454 const char *type_name)
2455{
2456 *vfd = *template;
2457 vfd->v4l2_dev = &dev->v4l2->v4l2_dev;
2458 vfd->lock = &dev->lock;
2459 if (dev->is_webcam)
2460 vfd->tvnorms = 0;
2461
2462 snprintf(vfd->name, sizeof(vfd->name), "%s %s",
2463 dev_name(&dev->intf->dev), type_name);
2464
2465 video_set_drvdata(vfd, dev);
2466}
2467
2468static void em28xx_tuner_setup(struct em28xx *dev, unsigned short tuner_addr)
2469{
2470 struct em28xx_v4l2 *v4l2 = dev->v4l2;
2471 struct v4l2_device *v4l2_dev = &v4l2->v4l2_dev;
2472 struct tuner_setup tun_setup;
2473 struct v4l2_frequency f;
2474
2475 memset(&tun_setup, 0, sizeof(tun_setup));
2476
2477 tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
2478 tun_setup.tuner_callback = em28xx_tuner_callback;
2479
2480 if (dev->board.radio.type) {
2481 tun_setup.type = dev->board.radio.type;
2482 tun_setup.addr = dev->board.radio_addr;
2483
2484 v4l2_device_call_all(v4l2_dev,
2485 0, tuner, s_type_addr, &tun_setup);
2486 }
2487
2488 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type) {
2489 tun_setup.type = dev->tuner_type;
2490 tun_setup.addr = tuner_addr;
2491
2492 v4l2_device_call_all(v4l2_dev,
2493 0, tuner, s_type_addr, &tun_setup);
2494 }
2495
2496 if (dev->board.tda9887_conf) {
2497 struct v4l2_priv_tun_config tda9887_cfg;
2498
2499 tda9887_cfg.tuner = TUNER_TDA9887;
2500 tda9887_cfg.priv = &dev->board.tda9887_conf;
2501
2502 v4l2_device_call_all(v4l2_dev,
2503 0, tuner, s_config, &tda9887_cfg);
2504 }
2505
2506 if (dev->tuner_type == TUNER_XC2028) {
2507 struct v4l2_priv_tun_config xc2028_cfg;
2508 struct xc2028_ctrl ctl;
2509
2510 memset(&xc2028_cfg, 0, sizeof(xc2028_cfg));
2511 memset(&ctl, 0, sizeof(ctl));
2512
2513 em28xx_setup_xc3028(dev, &ctl);
2514
2515 xc2028_cfg.tuner = TUNER_XC2028;
2516 xc2028_cfg.priv = &ctl;
2517
2518 v4l2_device_call_all(v4l2_dev, 0, tuner, s_config, &xc2028_cfg);
2519 }
2520
2521
2522 f.tuner = 0;
2523 f.type = V4L2_TUNER_ANALOG_TV;
2524 f.frequency = 9076;
2525 v4l2->frequency = f.frequency;
2526 v4l2_device_call_all(v4l2_dev, 0, tuner, s_frequency, &f);
2527}
2528
2529static int em28xx_v4l2_init(struct em28xx *dev)
2530{
2531 u8 val;
2532 int ret;
2533 unsigned int maxw;
2534 struct v4l2_ctrl_handler *hdl;
2535 struct em28xx_v4l2 *v4l2;
2536
2537 if (dev->is_audio_only) {
2538
2539 return 0;
2540 }
2541
2542 if (!dev->has_video) {
2543
2544 return 0;
2545 }
2546
2547 dev_info(&dev->intf->dev, "Registering V4L2 extension\n");
2548
2549 mutex_lock(&dev->lock);
2550
2551 v4l2 = kzalloc(sizeof(*v4l2), GFP_KERNEL);
2552 if (!v4l2) {
2553 mutex_unlock(&dev->lock);
2554 return -ENOMEM;
2555 }
2556 kref_init(&v4l2->ref);
2557 v4l2->dev = dev;
2558 dev->v4l2 = v4l2;
2559
2560#ifdef CONFIG_MEDIA_CONTROLLER
2561 v4l2->v4l2_dev.mdev = dev->media_dev;
2562#endif
2563 ret = v4l2_device_register(&dev->intf->dev, &v4l2->v4l2_dev);
2564 if (ret < 0) {
2565 dev_err(&dev->intf->dev,
2566 "Call to v4l2_device_register() failed!\n");
2567 goto err;
2568 }
2569
2570 hdl = &v4l2->ctrl_handler;
2571 v4l2_ctrl_handler_init(hdl, 8);
2572 v4l2->v4l2_dev.ctrl_handler = hdl;
2573
2574 if (dev->is_webcam)
2575 v4l2->progressive = true;
2576
2577
2578
2579
2580 v4l2->vinmode = EM28XX_VINMODE_YUV422_CbYCrY;
2581 v4l2->vinctl = EM28XX_VINCTRL_INTERLACED |
2582 EM28XX_VINCTRL_CCIR656_ENABLE;
2583
2584
2585
2586 if (dev->has_msp34xx)
2587 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2588 &dev->i2c_adap[dev->def_i2c_bus],
2589 "msp3400", 0, msp3400_addrs);
2590
2591 if (dev->board.decoder == EM28XX_SAA711X)
2592 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2593 &dev->i2c_adap[dev->def_i2c_bus],
2594 "saa7115_auto", 0, saa711x_addrs);
2595
2596 if (dev->board.decoder == EM28XX_TVP5150)
2597 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2598 &dev->i2c_adap[dev->def_i2c_bus],
2599 "tvp5150", 0, tvp5150_addrs);
2600
2601 if (dev->board.adecoder == EM28XX_TVAUDIO)
2602 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2603 &dev->i2c_adap[dev->def_i2c_bus],
2604 "tvaudio", dev->board.tvaudio_addr, NULL);
2605
2606
2607
2608 if (dev->board.tuner_type != TUNER_ABSENT) {
2609 unsigned short tuner_addr = dev->board.tuner_addr;
2610 int has_demod = (dev->board.tda9887_conf & TDA9887_PRESENT);
2611
2612 if (dev->board.radio.type)
2613 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2614 &dev->i2c_adap[dev->def_i2c_bus],
2615 "tuner", dev->board.radio_addr,
2616 NULL);
2617
2618 if (has_demod)
2619 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2620 &dev->i2c_adap[dev->def_i2c_bus],
2621 "tuner", 0,
2622 v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
2623 if (tuner_addr == 0) {
2624 enum v4l2_i2c_tuner_type type =
2625 has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
2626 struct v4l2_subdev *sd;
2627
2628 sd = v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2629 &dev->i2c_adap[dev->def_i2c_bus],
2630 "tuner", 0,
2631 v4l2_i2c_tuner_addrs(type));
2632
2633 if (sd)
2634 tuner_addr = v4l2_i2c_subdev_addr(sd);
2635 } else {
2636 v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
2637 &dev->i2c_adap[dev->def_i2c_bus],
2638 "tuner", tuner_addr, NULL);
2639 }
2640
2641 em28xx_tuner_setup(dev, tuner_addr);
2642 }
2643
2644 if (dev->em28xx_sensor != EM28XX_NOSENSOR)
2645 em28xx_init_camera(dev);
2646
2647
2648 ret = em28xx_audio_setup(dev);
2649 if (ret < 0) {
2650 dev_err(&dev->intf->dev,
2651 "%s: Error while setting audio - error [%d]!\n",
2652 __func__, ret);
2653 goto unregister_dev;
2654 }
2655 if (dev->audio_mode.ac97 != EM28XX_NO_AC97) {
2656 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2657 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
2658 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2659 V4L2_CID_AUDIO_VOLUME, 0, 0x1f, 1, 0x1f);
2660 } else {
2661
2662 v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_MUTE),
2663 em28xx_ctrl_notify, dev);
2664 v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_VOLUME),
2665 em28xx_ctrl_notify, dev);
2666 }
2667
2668
2669 em28xx_wake_i2c(dev);
2670
2671
2672 INIT_LIST_HEAD(&dev->vidq.active);
2673 INIT_LIST_HEAD(&dev->vbiq.active);
2674
2675 if (dev->has_msp34xx) {
2676
2677 ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7);
2678 if (ret < 0) {
2679 dev_err(&dev->intf->dev,
2680 "%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n",
2681 __func__, ret);
2682 goto unregister_dev;
2683 }
2684 usleep_range(10000, 11000);
2685
2686 ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff);
2687 if (ret < 0) {
2688 dev_err(&dev->intf->dev,
2689 "%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n",
2690 __func__, ret);
2691 goto unregister_dev;
2692 }
2693 usleep_range(10000, 11000);
2694 }
2695
2696
2697 v4l2->norm = V4L2_STD_PAL;
2698 v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_std, v4l2->norm);
2699 v4l2->interlaced_fieldmode = EM28XX_INTERLACED_DEFAULT;
2700
2701
2702 v4l2->format = &format[0];
2703
2704 maxw = norm_maxw(dev);
2705
2706
2707
2708
2709 if (dev->board.is_em2800)
2710 maxw /= 2;
2711
2712 em28xx_set_video_format(dev, format[0].fourcc,
2713 maxw, norm_maxh(dev));
2714
2715 video_mux(dev, 0);
2716
2717
2718 dev->mute = 1;
2719 dev->volume = 0x1f;
2720
2721
2722 val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK);
2723 em28xx_write_reg(dev, EM28XX_R0F_XCLK,
2724 (EM28XX_XCLK_AUDIO_UNMUTE | val));
2725
2726 em28xx_set_outfmt(dev);
2727
2728
2729
2730
2731
2732
2733
2734
2735 if (!v4l2_ctrl_find(hdl, V4L2_CID_CONTRAST))
2736 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2737 V4L2_CID_CONTRAST,
2738 0, 0x1f, 1, CONTRAST_DEFAULT);
2739 if (!v4l2_ctrl_find(hdl, V4L2_CID_BRIGHTNESS))
2740 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2741 V4L2_CID_BRIGHTNESS,
2742 -0x80, 0x7f, 1, BRIGHTNESS_DEFAULT);
2743 if (!v4l2_ctrl_find(hdl, V4L2_CID_SATURATION))
2744 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2745 V4L2_CID_SATURATION,
2746 0, 0x1f, 1, SATURATION_DEFAULT);
2747 if (!v4l2_ctrl_find(hdl, V4L2_CID_BLUE_BALANCE))
2748 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2749 V4L2_CID_BLUE_BALANCE,
2750 -0x30, 0x30, 1, BLUE_BALANCE_DEFAULT);
2751 if (!v4l2_ctrl_find(hdl, V4L2_CID_RED_BALANCE))
2752 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2753 V4L2_CID_RED_BALANCE,
2754 -0x30, 0x30, 1, RED_BALANCE_DEFAULT);
2755 if (!v4l2_ctrl_find(hdl, V4L2_CID_SHARPNESS))
2756 v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
2757 V4L2_CID_SHARPNESS,
2758 0, 0x0f, 1, SHARPNESS_DEFAULT);
2759
2760
2761 em28xx_colorlevels_set_default(dev);
2762 v4l2_ctrl_handler_setup(hdl);
2763 ret = hdl->error;
2764 if (ret)
2765 goto unregister_dev;
2766
2767
2768 em28xx_vdev_init(dev, &v4l2->vdev, &em28xx_video_template, "video");
2769 mutex_init(&v4l2->vb_queue_lock);
2770 mutex_init(&v4l2->vb_vbi_queue_lock);
2771 v4l2->vdev.queue = &v4l2->vb_vidq;
2772 v4l2->vdev.queue->lock = &v4l2->vb_queue_lock;
2773 v4l2->vdev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE |
2774 V4L2_CAP_STREAMING;
2775 if (dev->int_audio_type != EM28XX_INT_AUDIO_NONE)
2776 v4l2->vdev.device_caps |= V4L2_CAP_AUDIO;
2777 if (dev->tuner_type != TUNER_ABSENT)
2778 v4l2->vdev.device_caps |= V4L2_CAP_TUNER;
2779
2780
2781
2782 if (dev->is_webcam) {
2783 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_QUERYSTD);
2784 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_G_STD);
2785 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_S_STD);
2786 } else {
2787 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_S_PARM);
2788 }
2789 if (dev->tuner_type == TUNER_ABSENT) {
2790 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_G_TUNER);
2791 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_S_TUNER);
2792 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_G_FREQUENCY);
2793 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_S_FREQUENCY);
2794 }
2795 if (dev->int_audio_type == EM28XX_INT_AUDIO_NONE) {
2796 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_G_AUDIO);
2797 v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_S_AUDIO);
2798 }
2799
2800
2801 ret = video_register_device(&v4l2->vdev, VFL_TYPE_GRABBER,
2802 video_nr[dev->devno]);
2803 if (ret) {
2804 dev_err(&dev->intf->dev,
2805 "unable to register video device (error=%i).\n", ret);
2806 goto unregister_dev;
2807 }
2808
2809
2810 if (em28xx_vbi_supported(dev) == 1) {
2811 em28xx_vdev_init(dev, &v4l2->vbi_dev, &em28xx_video_template,
2812 "vbi");
2813
2814 v4l2->vbi_dev.queue = &v4l2->vb_vbiq;
2815 v4l2->vbi_dev.queue->lock = &v4l2->vb_vbi_queue_lock;
2816 v4l2->vbi_dev.device_caps = V4L2_CAP_STREAMING |
2817 V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE;
2818 if (dev->tuner_type != TUNER_ABSENT)
2819 v4l2->vbi_dev.device_caps |= V4L2_CAP_TUNER;
2820
2821
2822 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_S_PARM);
2823 if (dev->tuner_type == TUNER_ABSENT) {
2824 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_G_TUNER);
2825 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_S_TUNER);
2826 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_G_FREQUENCY);
2827 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_S_FREQUENCY);
2828 }
2829 if (dev->int_audio_type == EM28XX_INT_AUDIO_NONE) {
2830 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_G_AUDIO);
2831 v4l2_disable_ioctl(&v4l2->vbi_dev, VIDIOC_S_AUDIO);
2832 }
2833
2834
2835 ret = video_register_device(&v4l2->vbi_dev, VFL_TYPE_VBI,
2836 vbi_nr[dev->devno]);
2837 if (ret < 0) {
2838 dev_err(&dev->intf->dev,
2839 "unable to register vbi device\n");
2840 goto unregister_dev;
2841 }
2842 }
2843
2844 if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) {
2845 em28xx_vdev_init(dev, &v4l2->radio_dev, &em28xx_radio_template,
2846 "radio");
2847 v4l2->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
2848 ret = video_register_device(&v4l2->radio_dev, VFL_TYPE_RADIO,
2849 radio_nr[dev->devno]);
2850 if (ret < 0) {
2851 dev_err(&dev->intf->dev,
2852 "can't register radio device\n");
2853 goto unregister_dev;
2854 }
2855 dev_info(&dev->intf->dev,
2856 "Registered radio device as %s\n",
2857 video_device_node_name(&v4l2->radio_dev));
2858 }
2859
2860
2861 em28xx_v4l2_create_entities(dev);
2862
2863#ifdef CONFIG_MEDIA_CONTROLLER
2864 ret = v4l2_mc_create_media_graph(dev->media_dev);
2865 if (ret) {
2866 dev_err(&dev->intf->dev,
2867 "failed to create media graph\n");
2868 em28xx_v4l2_media_release(dev);
2869 goto unregister_dev;
2870 }
2871#endif
2872
2873 dev_info(&dev->intf->dev,
2874 "V4L2 video device registered as %s\n",
2875 video_device_node_name(&v4l2->vdev));
2876
2877 if (video_is_registered(&v4l2->vbi_dev))
2878 dev_info(&dev->intf->dev,
2879 "V4L2 VBI device registered as %s\n",
2880 video_device_node_name(&v4l2->vbi_dev));
2881
2882
2883 v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, standby);
2884
2885
2886 em28xx_vb2_setup(dev);
2887
2888 dev_info(&dev->intf->dev,
2889 "V4L2 extension successfully initialized\n");
2890
2891 kref_get(&dev->ref);
2892
2893 mutex_unlock(&dev->lock);
2894 return 0;
2895
2896unregister_dev:
2897 if (video_is_registered(&v4l2->radio_dev)) {
2898 dev_info(&dev->intf->dev,
2899 "V4L2 device %s deregistered\n",
2900 video_device_node_name(&v4l2->radio_dev));
2901 video_unregister_device(&v4l2->radio_dev);
2902 }
2903 if (video_is_registered(&v4l2->vbi_dev)) {
2904 dev_info(&dev->intf->dev,
2905 "V4L2 device %s deregistered\n",
2906 video_device_node_name(&v4l2->vbi_dev));
2907 video_unregister_device(&v4l2->vbi_dev);
2908 }
2909 if (video_is_registered(&v4l2->vdev)) {
2910 dev_info(&dev->intf->dev,
2911 "V4L2 device %s deregistered\n",
2912 video_device_node_name(&v4l2->vdev));
2913 video_unregister_device(&v4l2->vdev);
2914 }
2915
2916 v4l2_ctrl_handler_free(&v4l2->ctrl_handler);
2917 v4l2_device_unregister(&v4l2->v4l2_dev);
2918err:
2919 dev->v4l2 = NULL;
2920 kref_put(&v4l2->ref, em28xx_free_v4l2);
2921 mutex_unlock(&dev->lock);
2922 return ret;
2923}
2924
2925static struct em28xx_ops v4l2_ops = {
2926 .id = EM28XX_V4L2,
2927 .name = "Em28xx v4l2 Extension",
2928 .init = em28xx_v4l2_init,
2929 .fini = em28xx_v4l2_fini,
2930 .suspend = em28xx_v4l2_suspend,
2931 .resume = em28xx_v4l2_resume,
2932};
2933
2934static int __init em28xx_video_register(void)
2935{
2936 return em28xx_register_extension(&v4l2_ops);
2937}
2938
2939static void __exit em28xx_video_unregister(void)
2940{
2941 em28xx_unregister_extension(&v4l2_ops);
2942}
2943
2944module_init(em28xx_video_register);
2945module_exit(em28xx_video_unregister);
2946