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Orangefs: merge to v4.5
[deliverable/linux.git] / drivers / media / usb / pvrusb2 / pvrusb2-v4l2.c
1 /*
2 *
3 *
4 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
5 * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22 #include <linux/kernel.h>
23 #include <linux/slab.h>
24 #include "pvrusb2-context.h"
25 #include "pvrusb2-hdw.h"
26 #include "pvrusb2.h"
27 #include "pvrusb2-debug.h"
28 #include "pvrusb2-v4l2.h"
29 #include "pvrusb2-ioread.h"
30 #include <linux/videodev2.h>
31 #include <linux/module.h>
32 #include <media/v4l2-dev.h>
33 #include <media/v4l2-device.h>
34 #include <media/v4l2-fh.h>
35 #include <media/v4l2-common.h>
36 #include <media/v4l2-ioctl.h>
37
38 struct pvr2_v4l2_dev;
39 struct pvr2_v4l2_fh;
40 struct pvr2_v4l2;
41
42 struct pvr2_v4l2_dev {
43 struct video_device devbase; /* MUST be first! */
44 struct pvr2_v4l2 *v4lp;
45 struct pvr2_context_stream *stream;
46 /* Information about this device: */
47 enum pvr2_config config; /* Expected stream format */
48 int v4l_type; /* V4L defined type for this device node */
49 enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */
50 };
51
52 struct pvr2_v4l2_fh {
53 struct v4l2_fh fh;
54 struct pvr2_channel channel;
55 struct pvr2_v4l2_dev *pdi;
56 struct pvr2_ioread *rhp;
57 struct file *file;
58 wait_queue_head_t wait_data;
59 int fw_mode_flag;
60 /* Map contiguous ordinal value to input id */
61 unsigned char *input_map;
62 unsigned int input_cnt;
63 };
64
65 struct pvr2_v4l2 {
66 struct pvr2_channel channel;
67
68 /* streams - Note that these must be separately, individually,
69 * allocated pointers. This is because the v4l core is going to
70 * manage their deletion - separately, individually... */
71 struct pvr2_v4l2_dev *dev_video;
72 struct pvr2_v4l2_dev *dev_radio;
73 };
74
75 static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
76 module_param_array(video_nr, int, NULL, 0444);
77 MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor");
78 static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
79 module_param_array(radio_nr, int, NULL, 0444);
80 MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor");
81 static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
82 module_param_array(vbi_nr, int, NULL, 0444);
83 MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor");
84
85 static struct v4l2_fmtdesc pvr_fmtdesc [] = {
86 {
87 .index = 0,
88 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
89 .flags = V4L2_FMT_FLAG_COMPRESSED,
90 .description = "MPEG1/2",
91 // This should really be V4L2_PIX_FMT_MPEG, but xawtv
92 // breaks when I do that.
93 .pixelformat = 0, // V4L2_PIX_FMT_MPEG,
94 }
95 };
96
97 #define PVR_FORMAT_PIX 0
98 #define PVR_FORMAT_VBI 1
99
100 static struct v4l2_format pvr_format [] = {
101 [PVR_FORMAT_PIX] = {
102 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
103 .fmt = {
104 .pix = {
105 .width = 720,
106 .height = 576,
107 // This should really be V4L2_PIX_FMT_MPEG,
108 // but xawtv breaks when I do that.
109 .pixelformat = 0, // V4L2_PIX_FMT_MPEG,
110 .field = V4L2_FIELD_INTERLACED,
111 .bytesperline = 0, // doesn't make sense
112 // here
113 //FIXME : Don't know what to put here...
114 .sizeimage = (32*1024),
115 .colorspace = 0, // doesn't make sense here
116 .priv = 0
117 }
118 }
119 },
120 [PVR_FORMAT_VBI] = {
121 .type = V4L2_BUF_TYPE_VBI_CAPTURE,
122 .fmt = {
123 .vbi = {
124 .sampling_rate = 27000000,
125 .offset = 248,
126 .samples_per_line = 1443,
127 .sample_format = V4L2_PIX_FMT_GREY,
128 .start = { 0, 0 },
129 .count = { 0, 0 },
130 .flags = 0,
131 }
132 }
133 }
134 };
135
136
137
138 /*
139 * This is part of Video 4 Linux API. These procedures handle ioctl() calls.
140 */
141 static int pvr2_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
142 {
143 struct pvr2_v4l2_fh *fh = file->private_data;
144 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
145
146 strlcpy(cap->driver, "pvrusb2", sizeof(cap->driver));
147 strlcpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw),
148 sizeof(cap->bus_info));
149 strlcpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card));
150 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
151 V4L2_CAP_AUDIO | V4L2_CAP_RADIO |
152 V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS;
153 switch (fh->pdi->devbase.vfl_type) {
154 case VFL_TYPE_GRABBER:
155 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO;
156 break;
157 case VFL_TYPE_RADIO:
158 cap->device_caps = V4L2_CAP_RADIO;
159 break;
160 }
161 cap->device_caps |= V4L2_CAP_TUNER | V4L2_CAP_READWRITE;
162 return 0;
163 }
164
165 static int pvr2_g_std(struct file *file, void *priv, v4l2_std_id *std)
166 {
167 struct pvr2_v4l2_fh *fh = file->private_data;
168 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
169 int val = 0;
170 int ret;
171
172 ret = pvr2_ctrl_get_value(
173 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), &val);
174 *std = val;
175 return ret;
176 }
177
178 static int pvr2_s_std(struct file *file, void *priv, v4l2_std_id std)
179 {
180 struct pvr2_v4l2_fh *fh = file->private_data;
181 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
182
183 return pvr2_ctrl_set_value(
184 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), std);
185 }
186
187 static int pvr2_querystd(struct file *file, void *priv, v4l2_std_id *std)
188 {
189 struct pvr2_v4l2_fh *fh = file->private_data;
190 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
191 int val = 0;
192 int ret;
193
194 ret = pvr2_ctrl_get_value(
195 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDDETECT), &val);
196 *std = val;
197 return ret;
198 }
199
200 static int pvr2_enum_input(struct file *file, void *priv, struct v4l2_input *vi)
201 {
202 struct pvr2_v4l2_fh *fh = file->private_data;
203 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
204 struct pvr2_ctrl *cptr;
205 struct v4l2_input tmp;
206 unsigned int cnt;
207 int val;
208
209 cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
210
211 memset(&tmp, 0, sizeof(tmp));
212 tmp.index = vi->index;
213 if (vi->index >= fh->input_cnt)
214 return -EINVAL;
215 val = fh->input_map[vi->index];
216 switch (val) {
217 case PVR2_CVAL_INPUT_TV:
218 case PVR2_CVAL_INPUT_DTV:
219 case PVR2_CVAL_INPUT_RADIO:
220 tmp.type = V4L2_INPUT_TYPE_TUNER;
221 break;
222 case PVR2_CVAL_INPUT_SVIDEO:
223 case PVR2_CVAL_INPUT_COMPOSITE:
224 tmp.type = V4L2_INPUT_TYPE_CAMERA;
225 break;
226 default:
227 return -EINVAL;
228 }
229
230 cnt = 0;
231 pvr2_ctrl_get_valname(cptr, val,
232 tmp.name, sizeof(tmp.name) - 1, &cnt);
233 tmp.name[cnt] = 0;
234
235 /* Don't bother with audioset, since this driver currently
236 always switches the audio whenever the video is
237 switched. */
238
239 /* Handling std is a tougher problem. It doesn't make
240 sense in cases where a device might be multi-standard.
241 We could just copy out the current value for the
242 standard, but it can change over time. For now just
243 leave it zero. */
244 *vi = tmp;
245 return 0;
246 }
247
248 static int pvr2_g_input(struct file *file, void *priv, unsigned int *i)
249 {
250 struct pvr2_v4l2_fh *fh = file->private_data;
251 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
252 unsigned int idx;
253 struct pvr2_ctrl *cptr;
254 int val;
255 int ret;
256
257 cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
258 val = 0;
259 ret = pvr2_ctrl_get_value(cptr, &val);
260 *i = 0;
261 for (idx = 0; idx < fh->input_cnt; idx++) {
262 if (fh->input_map[idx] == val) {
263 *i = idx;
264 break;
265 }
266 }
267 return ret;
268 }
269
270 static int pvr2_s_input(struct file *file, void *priv, unsigned int inp)
271 {
272 struct pvr2_v4l2_fh *fh = file->private_data;
273 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
274
275 if (inp >= fh->input_cnt)
276 return -EINVAL;
277 return pvr2_ctrl_set_value(
278 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT),
279 fh->input_map[inp]);
280 }
281
282 static int pvr2_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin)
283 {
284 /* pkt: FIXME: We are returning one "fake" input here
285 which could very well be called "whatever_we_like".
286 This is for apps that want to see an audio input
287 just to feel comfortable, as well as to test if
288 it can do stereo or sth. There is actually no guarantee
289 that the actual audio input cannot change behind the app's
290 back, but most applications should not mind that either.
291
292 Hopefully, mplayer people will work with us on this (this
293 whole mess is to support mplayer pvr://), or Hans will come
294 up with a more standard way to say "we have inputs but we
295 don 't want you to change them independent of video" which
296 will sort this mess.
297 */
298
299 if (vin->index > 0)
300 return -EINVAL;
301 strncpy(vin->name, "PVRUSB2 Audio", 14);
302 vin->capability = V4L2_AUDCAP_STEREO;
303 return 0;
304 }
305
306 static int pvr2_g_audio(struct file *file, void *priv, struct v4l2_audio *vin)
307 {
308 /* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */
309 vin->index = 0;
310 strncpy(vin->name, "PVRUSB2 Audio", 14);
311 vin->capability = V4L2_AUDCAP_STEREO;
312 return 0;
313 }
314
315 static int pvr2_s_audio(struct file *file, void *priv, const struct v4l2_audio *vout)
316 {
317 if (vout->index)
318 return -EINVAL;
319 return 0;
320 }
321
322 static int pvr2_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
323 {
324 struct pvr2_v4l2_fh *fh = file->private_data;
325 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
326
327 if (vt->index != 0)
328 return -EINVAL; /* Only answer for the 1st tuner */
329
330 pvr2_hdw_execute_tuner_poll(hdw);
331 return pvr2_hdw_get_tuner_status(hdw, vt);
332 }
333
334 static int pvr2_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
335 {
336 struct pvr2_v4l2_fh *fh = file->private_data;
337 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
338
339 if (vt->index != 0)
340 return -EINVAL;
341
342 return pvr2_ctrl_set_value(
343 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_AUDIOMODE),
344 vt->audmode);
345 }
346
347 static int pvr2_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf)
348 {
349 struct pvr2_v4l2_fh *fh = file->private_data;
350 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
351 unsigned long fv;
352 struct v4l2_tuner vt;
353 int cur_input;
354 struct pvr2_ctrl *ctrlp;
355 int ret;
356
357 ret = pvr2_hdw_get_tuner_status(hdw, &vt);
358 if (ret != 0)
359 return ret;
360 ctrlp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
361 ret = pvr2_ctrl_get_value(ctrlp, &cur_input);
362 if (ret != 0)
363 return ret;
364 if (vf->type == V4L2_TUNER_RADIO) {
365 if (cur_input != PVR2_CVAL_INPUT_RADIO)
366 pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_RADIO);
367 } else {
368 if (cur_input == PVR2_CVAL_INPUT_RADIO)
369 pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_TV);
370 }
371 fv = vf->frequency;
372 if (vt.capability & V4L2_TUNER_CAP_LOW)
373 fv = (fv * 125) / 2;
374 else
375 fv = fv * 62500;
376 return pvr2_ctrl_set_value(
377 pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv);
378 }
379
380 static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
381 {
382 struct pvr2_v4l2_fh *fh = file->private_data;
383 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
384 int val = 0;
385 int cur_input;
386 struct v4l2_tuner vt;
387 int ret;
388
389 ret = pvr2_hdw_get_tuner_status(hdw, &vt);
390 if (ret != 0)
391 return ret;
392 ret = pvr2_ctrl_get_value(
393 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_FREQUENCY),
394 &val);
395 if (ret != 0)
396 return ret;
397 pvr2_ctrl_get_value(
398 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT),
399 &cur_input);
400 if (cur_input == PVR2_CVAL_INPUT_RADIO)
401 vf->type = V4L2_TUNER_RADIO;
402 else
403 vf->type = V4L2_TUNER_ANALOG_TV;
404 if (vt.capability & V4L2_TUNER_CAP_LOW)
405 val = (val * 2) / 125;
406 else
407 val /= 62500;
408 vf->frequency = val;
409 return 0;
410 }
411
412 static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd)
413 {
414 /* Only one format is supported : mpeg.*/
415 if (fd->index != 0)
416 return -EINVAL;
417
418 memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc));
419 return 0;
420 }
421
422 static int pvr2_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
423 {
424 struct pvr2_v4l2_fh *fh = file->private_data;
425 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
426 int val;
427
428 memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format));
429 val = 0;
430 pvr2_ctrl_get_value(
431 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES),
432 &val);
433 vf->fmt.pix.width = val;
434 val = 0;
435 pvr2_ctrl_get_value(
436 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES),
437 &val);
438 vf->fmt.pix.height = val;
439 return 0;
440 }
441
442 static int pvr2_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
443 {
444 struct pvr2_v4l2_fh *fh = file->private_data;
445 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
446 int lmin, lmax, ldef;
447 struct pvr2_ctrl *hcp, *vcp;
448 int h = vf->fmt.pix.height;
449 int w = vf->fmt.pix.width;
450
451 hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES);
452 vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES);
453
454 lmin = pvr2_ctrl_get_min(hcp);
455 lmax = pvr2_ctrl_get_max(hcp);
456 pvr2_ctrl_get_def(hcp, &ldef);
457 if (w == -1)
458 w = ldef;
459 else if (w < lmin)
460 w = lmin;
461 else if (w > lmax)
462 w = lmax;
463 lmin = pvr2_ctrl_get_min(vcp);
464 lmax = pvr2_ctrl_get_max(vcp);
465 pvr2_ctrl_get_def(vcp, &ldef);
466 if (h == -1)
467 h = ldef;
468 else if (h < lmin)
469 h = lmin;
470 else if (h > lmax)
471 h = lmax;
472
473 memcpy(vf, &pvr_format[PVR_FORMAT_PIX],
474 sizeof(struct v4l2_format));
475 vf->fmt.pix.width = w;
476 vf->fmt.pix.height = h;
477 return 0;
478 }
479
480 static int pvr2_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
481 {
482 struct pvr2_v4l2_fh *fh = file->private_data;
483 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
484 struct pvr2_ctrl *hcp, *vcp;
485 int ret = pvr2_try_fmt_vid_cap(file, fh, vf);
486
487 if (ret)
488 return ret;
489 hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES);
490 vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES);
491 pvr2_ctrl_set_value(hcp, vf->fmt.pix.width);
492 pvr2_ctrl_set_value(vcp, vf->fmt.pix.height);
493 return 0;
494 }
495
496 static int pvr2_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
497 {
498 struct pvr2_v4l2_fh *fh = file->private_data;
499 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
500 struct pvr2_v4l2_dev *pdi = fh->pdi;
501 int ret;
502
503 if (!fh->pdi->stream) {
504 /* No stream defined for this node. This means
505 that we're not currently allowed to stream from
506 this node. */
507 return -EPERM;
508 }
509 ret = pvr2_hdw_set_stream_type(hdw, pdi->config);
510 if (ret < 0)
511 return ret;
512 return pvr2_hdw_set_streaming(hdw, !0);
513 }
514
515 static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
516 {
517 struct pvr2_v4l2_fh *fh = file->private_data;
518 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
519
520 if (!fh->pdi->stream) {
521 /* No stream defined for this node. This means
522 that we're not currently allowed to stream from
523 this node. */
524 return -EPERM;
525 }
526 return pvr2_hdw_set_streaming(hdw, 0);
527 }
528
529 static int pvr2_queryctrl(struct file *file, void *priv,
530 struct v4l2_queryctrl *vc)
531 {
532 struct pvr2_v4l2_fh *fh = file->private_data;
533 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
534 struct pvr2_ctrl *cptr;
535 int val;
536
537 if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) {
538 cptr = pvr2_hdw_get_ctrl_nextv4l(
539 hdw, (vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL));
540 if (cptr)
541 vc->id = pvr2_ctrl_get_v4lid(cptr);
542 } else {
543 cptr = pvr2_hdw_get_ctrl_v4l(hdw, vc->id);
544 }
545 if (!cptr) {
546 pvr2_trace(PVR2_TRACE_V4LIOCTL,
547 "QUERYCTRL id=0x%x not implemented here",
548 vc->id);
549 return -EINVAL;
550 }
551
552 pvr2_trace(PVR2_TRACE_V4LIOCTL,
553 "QUERYCTRL id=0x%x mapping name=%s (%s)",
554 vc->id, pvr2_ctrl_get_name(cptr),
555 pvr2_ctrl_get_desc(cptr));
556 strlcpy(vc->name, pvr2_ctrl_get_desc(cptr), sizeof(vc->name));
557 vc->flags = pvr2_ctrl_get_v4lflags(cptr);
558 pvr2_ctrl_get_def(cptr, &val);
559 vc->default_value = val;
560 switch (pvr2_ctrl_get_type(cptr)) {
561 case pvr2_ctl_enum:
562 vc->type = V4L2_CTRL_TYPE_MENU;
563 vc->minimum = 0;
564 vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1;
565 vc->step = 1;
566 break;
567 case pvr2_ctl_bool:
568 vc->type = V4L2_CTRL_TYPE_BOOLEAN;
569 vc->minimum = 0;
570 vc->maximum = 1;
571 vc->step = 1;
572 break;
573 case pvr2_ctl_int:
574 vc->type = V4L2_CTRL_TYPE_INTEGER;
575 vc->minimum = pvr2_ctrl_get_min(cptr);
576 vc->maximum = pvr2_ctrl_get_max(cptr);
577 vc->step = 1;
578 break;
579 default:
580 pvr2_trace(PVR2_TRACE_V4LIOCTL,
581 "QUERYCTRL id=0x%x name=%s not mappable",
582 vc->id, pvr2_ctrl_get_name(cptr));
583 return -EINVAL;
584 }
585 return 0;
586 }
587
588 static int pvr2_querymenu(struct file *file, void *priv, struct v4l2_querymenu *vm)
589 {
590 struct pvr2_v4l2_fh *fh = file->private_data;
591 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
592 unsigned int cnt = 0;
593 int ret;
594
595 ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw, vm->id),
596 vm->index,
597 vm->name, sizeof(vm->name) - 1,
598 &cnt);
599 vm->name[cnt] = 0;
600 return ret;
601 }
602
603 static int pvr2_g_ctrl(struct file *file, void *priv, struct v4l2_control *vc)
604 {
605 struct pvr2_v4l2_fh *fh = file->private_data;
606 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
607 int val = 0;
608 int ret;
609
610 ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id),
611 &val);
612 vc->value = val;
613 return ret;
614 }
615
616 static int pvr2_s_ctrl(struct file *file, void *priv, struct v4l2_control *vc)
617 {
618 struct pvr2_v4l2_fh *fh = file->private_data;
619 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
620
621 return pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id),
622 vc->value);
623 }
624
625 static int pvr2_g_ext_ctrls(struct file *file, void *priv,
626 struct v4l2_ext_controls *ctls)
627 {
628 struct pvr2_v4l2_fh *fh = file->private_data;
629 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
630 struct v4l2_ext_control *ctrl;
631 struct pvr2_ctrl *cptr;
632 unsigned int idx;
633 int val;
634 int ret;
635
636 ret = 0;
637 for (idx = 0; idx < ctls->count; idx++) {
638 ctrl = ctls->controls + idx;
639 cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id);
640 if (cptr) {
641 if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL)
642 pvr2_ctrl_get_def(cptr, &val);
643 else
644 ret = pvr2_ctrl_get_value(cptr, &val);
645 } else
646 ret = -EINVAL;
647
648 if (ret) {
649 ctls->error_idx = idx;
650 return ret;
651 }
652 /* Ensure that if read as a 64 bit value, the user
653 will still get a hopefully sane value */
654 ctrl->value64 = 0;
655 ctrl->value = val;
656 }
657 return 0;
658 }
659
660 static int pvr2_s_ext_ctrls(struct file *file, void *priv,
661 struct v4l2_ext_controls *ctls)
662 {
663 struct pvr2_v4l2_fh *fh = file->private_data;
664 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
665 struct v4l2_ext_control *ctrl;
666 unsigned int idx;
667 int ret;
668
669 /* Default value cannot be changed */
670 if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL)
671 return -EINVAL;
672
673 ret = 0;
674 for (idx = 0; idx < ctls->count; idx++) {
675 ctrl = ctls->controls + idx;
676 ret = pvr2_ctrl_set_value(
677 pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id),
678 ctrl->value);
679 if (ret) {
680 ctls->error_idx = idx;
681 return ret;
682 }
683 }
684 return 0;
685 }
686
687 static int pvr2_try_ext_ctrls(struct file *file, void *priv,
688 struct v4l2_ext_controls *ctls)
689 {
690 struct pvr2_v4l2_fh *fh = file->private_data;
691 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
692 struct v4l2_ext_control *ctrl;
693 struct pvr2_ctrl *pctl;
694 unsigned int idx;
695
696 /* For the moment just validate that the requested control
697 actually exists. */
698 for (idx = 0; idx < ctls->count; idx++) {
699 ctrl = ctls->controls + idx;
700 pctl = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id);
701 if (!pctl) {
702 ctls->error_idx = idx;
703 return -EINVAL;
704 }
705 }
706 return 0;
707 }
708
709 static int pvr2_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cap)
710 {
711 struct pvr2_v4l2_fh *fh = file->private_data;
712 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
713 int ret;
714
715 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
716 return -EINVAL;
717 ret = pvr2_hdw_get_cropcap(hdw, cap);
718 cap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; /* paranoia */
719 return ret;
720 }
721
722 static int pvr2_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
723 {
724 struct pvr2_v4l2_fh *fh = file->private_data;
725 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
726 int val = 0;
727 int ret;
728
729 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
730 return -EINVAL;
731 ret = pvr2_ctrl_get_value(
732 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val);
733 if (ret != 0)
734 return -EINVAL;
735 crop->c.left = val;
736 ret = pvr2_ctrl_get_value(
737 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val);
738 if (ret != 0)
739 return -EINVAL;
740 crop->c.top = val;
741 ret = pvr2_ctrl_get_value(
742 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val);
743 if (ret != 0)
744 return -EINVAL;
745 crop->c.width = val;
746 ret = pvr2_ctrl_get_value(
747 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val);
748 if (ret != 0)
749 return -EINVAL;
750 crop->c.height = val;
751 return 0;
752 }
753
754 static int pvr2_s_crop(struct file *file, void *priv, const struct v4l2_crop *crop)
755 {
756 struct pvr2_v4l2_fh *fh = file->private_data;
757 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
758 int ret;
759
760 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
761 return -EINVAL;
762 ret = pvr2_ctrl_set_value(
763 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL),
764 crop->c.left);
765 if (ret != 0)
766 return -EINVAL;
767 ret = pvr2_ctrl_set_value(
768 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT),
769 crop->c.top);
770 if (ret != 0)
771 return -EINVAL;
772 ret = pvr2_ctrl_set_value(
773 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW),
774 crop->c.width);
775 if (ret != 0)
776 return -EINVAL;
777 ret = pvr2_ctrl_set_value(
778 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH),
779 crop->c.height);
780 if (ret != 0)
781 return -EINVAL;
782 return 0;
783 }
784
785 static int pvr2_log_status(struct file *file, void *priv)
786 {
787 struct pvr2_v4l2_fh *fh = file->private_data;
788 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
789
790 pvr2_hdw_trigger_module_log(hdw);
791 return 0;
792 }
793
794 static const struct v4l2_ioctl_ops pvr2_ioctl_ops = {
795 .vidioc_querycap = pvr2_querycap,
796 .vidioc_s_audio = pvr2_s_audio,
797 .vidioc_g_audio = pvr2_g_audio,
798 .vidioc_enumaudio = pvr2_enumaudio,
799 .vidioc_enum_input = pvr2_enum_input,
800 .vidioc_cropcap = pvr2_cropcap,
801 .vidioc_s_crop = pvr2_s_crop,
802 .vidioc_g_crop = pvr2_g_crop,
803 .vidioc_g_input = pvr2_g_input,
804 .vidioc_s_input = pvr2_s_input,
805 .vidioc_g_frequency = pvr2_g_frequency,
806 .vidioc_s_frequency = pvr2_s_frequency,
807 .vidioc_s_tuner = pvr2_s_tuner,
808 .vidioc_g_tuner = pvr2_g_tuner,
809 .vidioc_g_std = pvr2_g_std,
810 .vidioc_s_std = pvr2_s_std,
811 .vidioc_querystd = pvr2_querystd,
812 .vidioc_log_status = pvr2_log_status,
813 .vidioc_enum_fmt_vid_cap = pvr2_enum_fmt_vid_cap,
814 .vidioc_g_fmt_vid_cap = pvr2_g_fmt_vid_cap,
815 .vidioc_s_fmt_vid_cap = pvr2_s_fmt_vid_cap,
816 .vidioc_try_fmt_vid_cap = pvr2_try_fmt_vid_cap,
817 .vidioc_streamon = pvr2_streamon,
818 .vidioc_streamoff = pvr2_streamoff,
819 .vidioc_queryctrl = pvr2_queryctrl,
820 .vidioc_querymenu = pvr2_querymenu,
821 .vidioc_g_ctrl = pvr2_g_ctrl,
822 .vidioc_s_ctrl = pvr2_s_ctrl,
823 .vidioc_g_ext_ctrls = pvr2_g_ext_ctrls,
824 .vidioc_s_ext_ctrls = pvr2_s_ext_ctrls,
825 .vidioc_try_ext_ctrls = pvr2_try_ext_ctrls,
826 };
827
828 static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip)
829 {
830 struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw;
831 enum pvr2_config cfg = dip->config;
832 char msg[80];
833 unsigned int mcnt;
834
835 /* Construct the unregistration message *before* we actually
836 perform the unregistration step. By doing it this way we don't
837 have to worry about potentially touching deleted resources. */
838 mcnt = scnprintf(msg, sizeof(msg) - 1,
839 "pvrusb2: unregistered device %s [%s]",
840 video_device_node_name(&dip->devbase),
841 pvr2_config_get_name(cfg));
842 msg[mcnt] = 0;
843
844 pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1);
845
846 /* Paranoia */
847 dip->v4lp = NULL;
848 dip->stream = NULL;
849
850 /* Actual deallocation happens later when all internal references
851 are gone. */
852 video_unregister_device(&dip->devbase);
853
854 printk(KERN_INFO "%s\n", msg);
855
856 }
857
858
859 static void pvr2_v4l2_dev_disassociate_parent(struct pvr2_v4l2_dev *dip)
860 {
861 if (!dip) return;
862 if (!dip->devbase.v4l2_dev->dev) return;
863 dip->devbase.v4l2_dev->dev = NULL;
864 device_move(&dip->devbase.dev, NULL, DPM_ORDER_NONE);
865 }
866
867
868 static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp)
869 {
870 if (vp->dev_video) {
871 pvr2_v4l2_dev_destroy(vp->dev_video);
872 vp->dev_video = NULL;
873 }
874 if (vp->dev_radio) {
875 pvr2_v4l2_dev_destroy(vp->dev_radio);
876 vp->dev_radio = NULL;
877 }
878
879 pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp);
880 pvr2_channel_done(&vp->channel);
881 kfree(vp);
882 }
883
884
885 static void pvr2_video_device_release(struct video_device *vdev)
886 {
887 struct pvr2_v4l2_dev *dev;
888 dev = container_of(vdev,struct pvr2_v4l2_dev,devbase);
889 kfree(dev);
890 }
891
892
893 static void pvr2_v4l2_internal_check(struct pvr2_channel *chp)
894 {
895 struct pvr2_v4l2 *vp;
896 vp = container_of(chp,struct pvr2_v4l2,channel);
897 if (!vp->channel.mc_head->disconnect_flag) return;
898 pvr2_v4l2_dev_disassociate_parent(vp->dev_video);
899 pvr2_v4l2_dev_disassociate_parent(vp->dev_radio);
900 if (!list_empty(&vp->dev_video->devbase.fh_list) ||
901 !list_empty(&vp->dev_radio->devbase.fh_list))
902 return;
903 pvr2_v4l2_destroy_no_lock(vp);
904 }
905
906
907 static long pvr2_v4l2_ioctl(struct file *file,
908 unsigned int cmd, unsigned long arg)
909 {
910
911 struct pvr2_v4l2_fh *fh = file->private_data;
912 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
913 long ret = -EINVAL;
914
915 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL)
916 v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
917
918 if (!pvr2_hdw_dev_ok(hdw)) {
919 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
920 "ioctl failed - bad or no context");
921 return -EFAULT;
922 }
923
924 ret = video_ioctl2(file, cmd, arg);
925
926 pvr2_hdw_commit_ctl(hdw);
927
928 if (ret < 0) {
929 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
930 pvr2_trace(PVR2_TRACE_V4LIOCTL,
931 "pvr2_v4l2_do_ioctl failure, ret=%ld"
932 " command was:", ret);
933 v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
934 }
935 } else {
936 pvr2_trace(PVR2_TRACE_V4LIOCTL,
937 "pvr2_v4l2_do_ioctl complete, ret=%ld (0x%lx)",
938 ret, ret);
939 }
940 return ret;
941
942 }
943
944
945 static int pvr2_v4l2_release(struct file *file)
946 {
947 struct pvr2_v4l2_fh *fhp = file->private_data;
948 struct pvr2_v4l2 *vp = fhp->pdi->v4lp;
949 struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw;
950
951 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release");
952
953 if (fhp->rhp) {
954 struct pvr2_stream *sp;
955 pvr2_hdw_set_streaming(hdw,0);
956 sp = pvr2_ioread_get_stream(fhp->rhp);
957 if (sp) pvr2_stream_set_callback(sp,NULL,NULL);
958 pvr2_ioread_destroy(fhp->rhp);
959 fhp->rhp = NULL;
960 }
961
962 v4l2_fh_del(&fhp->fh);
963 v4l2_fh_exit(&fhp->fh);
964 file->private_data = NULL;
965
966 pvr2_channel_done(&fhp->channel);
967 pvr2_trace(PVR2_TRACE_STRUCT,
968 "Destroying pvr_v4l2_fh id=%p",fhp);
969 if (fhp->input_map) {
970 kfree(fhp->input_map);
971 fhp->input_map = NULL;
972 }
973 kfree(fhp);
974 if (vp->channel.mc_head->disconnect_flag &&
975 list_empty(&vp->dev_video->devbase.fh_list) &&
976 list_empty(&vp->dev_radio->devbase.fh_list)) {
977 pvr2_v4l2_destroy_no_lock(vp);
978 }
979 return 0;
980 }
981
982
983 static int pvr2_v4l2_open(struct file *file)
984 {
985 struct pvr2_v4l2_dev *dip; /* Our own context pointer */
986 struct pvr2_v4l2_fh *fhp;
987 struct pvr2_v4l2 *vp;
988 struct pvr2_hdw *hdw;
989 unsigned int input_mask = 0;
990 unsigned int input_cnt,idx;
991 int ret = 0;
992
993 dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase);
994
995 vp = dip->v4lp;
996 hdw = vp->channel.hdw;
997
998 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open");
999
1000 if (!pvr2_hdw_dev_ok(hdw)) {
1001 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,
1002 "pvr2_v4l2_open: hardware not ready");
1003 return -EIO;
1004 }
1005
1006 fhp = kzalloc(sizeof(*fhp),GFP_KERNEL);
1007 if (!fhp) {
1008 return -ENOMEM;
1009 }
1010
1011 v4l2_fh_init(&fhp->fh, &dip->devbase);
1012 init_waitqueue_head(&fhp->wait_data);
1013 fhp->pdi = dip;
1014
1015 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp);
1016 pvr2_channel_init(&fhp->channel,vp->channel.mc_head);
1017
1018 if (dip->v4l_type == VFL_TYPE_RADIO) {
1019 /* Opening device as a radio, legal input selection subset
1020 is just the radio. */
1021 input_mask = (1 << PVR2_CVAL_INPUT_RADIO);
1022 } else {
1023 /* Opening the main V4L device, legal input selection
1024 subset includes all analog inputs. */
1025 input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) |
1026 (1 << PVR2_CVAL_INPUT_TV) |
1027 (1 << PVR2_CVAL_INPUT_COMPOSITE) |
1028 (1 << PVR2_CVAL_INPUT_SVIDEO));
1029 }
1030 ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask);
1031 if (ret) {
1032 pvr2_channel_done(&fhp->channel);
1033 pvr2_trace(PVR2_TRACE_STRUCT,
1034 "Destroying pvr_v4l2_fh id=%p (input mask error)",
1035 fhp);
1036
1037 kfree(fhp);
1038 return ret;
1039 }
1040
1041 input_mask &= pvr2_hdw_get_input_available(hdw);
1042 input_cnt = 0;
1043 for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) {
1044 if (input_mask & (1 << idx)) input_cnt++;
1045 }
1046 fhp->input_cnt = input_cnt;
1047 fhp->input_map = kzalloc(input_cnt,GFP_KERNEL);
1048 if (!fhp->input_map) {
1049 pvr2_channel_done(&fhp->channel);
1050 pvr2_trace(PVR2_TRACE_STRUCT,
1051 "Destroying pvr_v4l2_fh id=%p (input map failure)",
1052 fhp);
1053 kfree(fhp);
1054 return -ENOMEM;
1055 }
1056 input_cnt = 0;
1057 for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) {
1058 if (!(input_mask & (1 << idx))) continue;
1059 fhp->input_map[input_cnt++] = idx;
1060 }
1061
1062 fhp->file = file;
1063 file->private_data = fhp;
1064
1065 fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw);
1066 v4l2_fh_add(&fhp->fh);
1067
1068 return 0;
1069 }
1070
1071
1072 static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
1073 {
1074 wake_up(&fhp->wait_data);
1075 }
1076
1077 static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
1078 {
1079 int ret;
1080 struct pvr2_stream *sp;
1081 struct pvr2_hdw *hdw;
1082 if (fh->rhp) return 0;
1083
1084 if (!fh->pdi->stream) {
1085 /* No stream defined for this node. This means that we're
1086 not currently allowed to stream from this node. */
1087 return -EPERM;
1088 }
1089
1090 /* First read() attempt. Try to claim the stream and start
1091 it... */
1092 if ((ret = pvr2_channel_claim_stream(&fh->channel,
1093 fh->pdi->stream)) != 0) {
1094 /* Someone else must already have it */
1095 return ret;
1096 }
1097
1098 fh->rhp = pvr2_channel_create_mpeg_stream(fh->pdi->stream);
1099 if (!fh->rhp) {
1100 pvr2_channel_claim_stream(&fh->channel,NULL);
1101 return -ENOMEM;
1102 }
1103
1104 hdw = fh->channel.mc_head->hdw;
1105 sp = fh->pdi->stream->stream;
1106 pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
1107 pvr2_hdw_set_stream_type(hdw,fh->pdi->config);
1108 if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret;
1109 return pvr2_ioread_set_enabled(fh->rhp,!0);
1110 }
1111
1112
1113 static ssize_t pvr2_v4l2_read(struct file *file,
1114 char __user *buff, size_t count, loff_t *ppos)
1115 {
1116 struct pvr2_v4l2_fh *fh = file->private_data;
1117 int ret;
1118
1119 if (fh->fw_mode_flag) {
1120 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
1121 char *tbuf;
1122 int c1,c2;
1123 int tcnt = 0;
1124 unsigned int offs = *ppos;
1125
1126 tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL);
1127 if (!tbuf) return -ENOMEM;
1128
1129 while (count) {
1130 c1 = count;
1131 if (c1 > PAGE_SIZE) c1 = PAGE_SIZE;
1132 c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1);
1133 if (c2 < 0) {
1134 tcnt = c2;
1135 break;
1136 }
1137 if (!c2) break;
1138 if (copy_to_user(buff,tbuf,c2)) {
1139 tcnt = -EFAULT;
1140 break;
1141 }
1142 offs += c2;
1143 tcnt += c2;
1144 buff += c2;
1145 count -= c2;
1146 *ppos += c2;
1147 }
1148 kfree(tbuf);
1149 return tcnt;
1150 }
1151
1152 if (!fh->rhp) {
1153 ret = pvr2_v4l2_iosetup(fh);
1154 if (ret) {
1155 return ret;
1156 }
1157 }
1158
1159 for (;;) {
1160 ret = pvr2_ioread_read(fh->rhp,buff,count);
1161 if (ret >= 0) break;
1162 if (ret != -EAGAIN) break;
1163 if (file->f_flags & O_NONBLOCK) break;
1164 /* Doing blocking I/O. Wait here. */
1165 ret = wait_event_interruptible(
1166 fh->wait_data,
1167 pvr2_ioread_avail(fh->rhp) >= 0);
1168 if (ret < 0) break;
1169 }
1170
1171 return ret;
1172 }
1173
1174
1175 static unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait)
1176 {
1177 unsigned int mask = 0;
1178 struct pvr2_v4l2_fh *fh = file->private_data;
1179 int ret;
1180
1181 if (fh->fw_mode_flag) {
1182 mask |= POLLIN | POLLRDNORM;
1183 return mask;
1184 }
1185
1186 if (!fh->rhp) {
1187 ret = pvr2_v4l2_iosetup(fh);
1188 if (ret) return POLLERR;
1189 }
1190
1191 poll_wait(file,&fh->wait_data,wait);
1192
1193 if (pvr2_ioread_avail(fh->rhp) >= 0) {
1194 mask |= POLLIN | POLLRDNORM;
1195 }
1196
1197 return mask;
1198 }
1199
1200
1201 static const struct v4l2_file_operations vdev_fops = {
1202 .owner = THIS_MODULE,
1203 .open = pvr2_v4l2_open,
1204 .release = pvr2_v4l2_release,
1205 .read = pvr2_v4l2_read,
1206 .unlocked_ioctl = pvr2_v4l2_ioctl,
1207 .poll = pvr2_v4l2_poll,
1208 };
1209
1210
1211 static struct video_device vdev_template = {
1212 .fops = &vdev_fops,
1213 };
1214
1215
1216 static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip,
1217 struct pvr2_v4l2 *vp,
1218 int v4l_type)
1219 {
1220 int mindevnum;
1221 int unit_number;
1222 struct pvr2_hdw *hdw;
1223 int *nr_ptr = NULL;
1224 dip->v4lp = vp;
1225
1226 hdw = vp->channel.mc_head->hdw;
1227 dip->v4l_type = v4l_type;
1228 switch (v4l_type) {
1229 case VFL_TYPE_GRABBER:
1230 dip->stream = &vp->channel.mc_head->video_stream;
1231 dip->config = pvr2_config_mpeg;
1232 dip->minor_type = pvr2_v4l_type_video;
1233 nr_ptr = video_nr;
1234 if (!dip->stream) {
1235 pr_err(KBUILD_MODNAME
1236 ": Failed to set up pvrusb2 v4l video dev"
1237 " due to missing stream instance\n");
1238 return;
1239 }
1240 break;
1241 case VFL_TYPE_VBI:
1242 dip->config = pvr2_config_vbi;
1243 dip->minor_type = pvr2_v4l_type_vbi;
1244 nr_ptr = vbi_nr;
1245 break;
1246 case VFL_TYPE_RADIO:
1247 dip->stream = &vp->channel.mc_head->video_stream;
1248 dip->config = pvr2_config_mpeg;
1249 dip->minor_type = pvr2_v4l_type_radio;
1250 nr_ptr = radio_nr;
1251 break;
1252 default:
1253 /* Bail out (this should be impossible) */
1254 pr_err(KBUILD_MODNAME ": Failed to set up pvrusb2 v4l dev"
1255 " due to unrecognized config\n");
1256 return;
1257 }
1258
1259 dip->devbase = vdev_template;
1260 dip->devbase.release = pvr2_video_device_release;
1261 dip->devbase.ioctl_ops = &pvr2_ioctl_ops;
1262 {
1263 int val;
1264 pvr2_ctrl_get_value(
1265 pvr2_hdw_get_ctrl_by_id(hdw,
1266 PVR2_CID_STDAVAIL), &val);
1267 dip->devbase.tvnorms = (v4l2_std_id)val;
1268 }
1269
1270 mindevnum = -1;
1271 unit_number = pvr2_hdw_get_unit_number(hdw);
1272 if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) {
1273 mindevnum = nr_ptr[unit_number];
1274 }
1275 pvr2_hdw_set_v4l2_dev(hdw, &dip->devbase);
1276 if ((video_register_device(&dip->devbase,
1277 dip->v4l_type, mindevnum) < 0) &&
1278 (video_register_device(&dip->devbase,
1279 dip->v4l_type, -1) < 0)) {
1280 pr_err(KBUILD_MODNAME
1281 ": Failed to register pvrusb2 v4l device\n");
1282 }
1283
1284 printk(KERN_INFO "pvrusb2: registered device %s [%s]\n",
1285 video_device_node_name(&dip->devbase),
1286 pvr2_config_get_name(dip->config));
1287
1288 pvr2_hdw_v4l_store_minor_number(hdw,
1289 dip->minor_type,dip->devbase.minor);
1290 }
1291
1292
1293 struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp)
1294 {
1295 struct pvr2_v4l2 *vp;
1296
1297 vp = kzalloc(sizeof(*vp),GFP_KERNEL);
1298 if (!vp) return vp;
1299 pvr2_channel_init(&vp->channel,mnp);
1300 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp);
1301
1302 vp->channel.check_func = pvr2_v4l2_internal_check;
1303
1304 /* register streams */
1305 vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL);
1306 if (!vp->dev_video) goto fail;
1307 pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER);
1308 if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) &
1309 (1 << PVR2_CVAL_INPUT_RADIO)) {
1310 vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL);
1311 if (!vp->dev_radio) goto fail;
1312 pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO);
1313 }
1314
1315 return vp;
1316 fail:
1317 pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p",vp);
1318 pvr2_v4l2_destroy_no_lock(vp);
1319 return NULL;
1320 }
Linux kernel - Deliverables
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