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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-artful-kernel.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_selection(struct file *file, void *priv,
723 struct v4l2_selection *sel)
724 {
725 struct pvr2_v4l2_fh *fh = file->private_data;
726 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
727 struct v4l2_cropcap cap;
728 int val = 0;
729 int ret;
730
731 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
732 return -EINVAL;
733
734 cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
735
736 switch (sel->target) {
737 case V4L2_SEL_TGT_CROP:
738 ret = pvr2_ctrl_get_value(
739 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val);
740 if (ret != 0)
741 return -EINVAL;
742 sel->r.left = val;
743 ret = pvr2_ctrl_get_value(
744 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val);
745 if (ret != 0)
746 return -EINVAL;
747 sel->r.top = val;
748 ret = pvr2_ctrl_get_value(
749 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val);
750 if (ret != 0)
751 return -EINVAL;
752 sel->r.width = val;
753 ret = pvr2_ctrl_get_value(
754 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val);
755 if (ret != 0)
756 return -EINVAL;
757 sel->r.height = val;
758 break;
759 case V4L2_SEL_TGT_CROP_DEFAULT:
760 ret = pvr2_hdw_get_cropcap(hdw, &cap);
761 sel->r = cap.defrect;
762 break;
763 case V4L2_SEL_TGT_CROP_BOUNDS:
764 ret = pvr2_hdw_get_cropcap(hdw, &cap);
765 sel->r = cap.bounds;
766 break;
767 default:
768 return -EINVAL;
769 }
770 return ret;
771 }
772
773 static int pvr2_s_selection(struct file *file, void *priv,
774 struct v4l2_selection *sel)
775 {
776 struct pvr2_v4l2_fh *fh = file->private_data;
777 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
778 int ret;
779
780 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
781 sel->target != V4L2_SEL_TGT_CROP)
782 return -EINVAL;
783 ret = pvr2_ctrl_set_value(
784 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL),
785 sel->r.left);
786 if (ret != 0)
787 return -EINVAL;
788 ret = pvr2_ctrl_set_value(
789 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT),
790 sel->r.top);
791 if (ret != 0)
792 return -EINVAL;
793 ret = pvr2_ctrl_set_value(
794 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW),
795 sel->r.width);
796 if (ret != 0)
797 return -EINVAL;
798 ret = pvr2_ctrl_set_value(
799 pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH),
800 sel->r.height);
801 if (ret != 0)
802 return -EINVAL;
803 return 0;
804 }
805
806 static int pvr2_log_status(struct file *file, void *priv)
807 {
808 struct pvr2_v4l2_fh *fh = file->private_data;
809 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
810
811 pvr2_hdw_trigger_module_log(hdw);
812 return 0;
813 }
814
815 static const struct v4l2_ioctl_ops pvr2_ioctl_ops = {
816 .vidioc_querycap = pvr2_querycap,
817 .vidioc_s_audio = pvr2_s_audio,
818 .vidioc_g_audio = pvr2_g_audio,
819 .vidioc_enumaudio = pvr2_enumaudio,
820 .vidioc_enum_input = pvr2_enum_input,
821 .vidioc_cropcap = pvr2_cropcap,
822 .vidioc_s_selection = pvr2_s_selection,
823 .vidioc_g_selection = pvr2_g_selection,
824 .vidioc_g_input = pvr2_g_input,
825 .vidioc_s_input = pvr2_s_input,
826 .vidioc_g_frequency = pvr2_g_frequency,
827 .vidioc_s_frequency = pvr2_s_frequency,
828 .vidioc_s_tuner = pvr2_s_tuner,
829 .vidioc_g_tuner = pvr2_g_tuner,
830 .vidioc_g_std = pvr2_g_std,
831 .vidioc_s_std = pvr2_s_std,
832 .vidioc_querystd = pvr2_querystd,
833 .vidioc_log_status = pvr2_log_status,
834 .vidioc_enum_fmt_vid_cap = pvr2_enum_fmt_vid_cap,
835 .vidioc_g_fmt_vid_cap = pvr2_g_fmt_vid_cap,
836 .vidioc_s_fmt_vid_cap = pvr2_s_fmt_vid_cap,
837 .vidioc_try_fmt_vid_cap = pvr2_try_fmt_vid_cap,
838 .vidioc_streamon = pvr2_streamon,
839 .vidioc_streamoff = pvr2_streamoff,
840 .vidioc_queryctrl = pvr2_queryctrl,
841 .vidioc_querymenu = pvr2_querymenu,
842 .vidioc_g_ctrl = pvr2_g_ctrl,
843 .vidioc_s_ctrl = pvr2_s_ctrl,
844 .vidioc_g_ext_ctrls = pvr2_g_ext_ctrls,
845 .vidioc_s_ext_ctrls = pvr2_s_ext_ctrls,
846 .vidioc_try_ext_ctrls = pvr2_try_ext_ctrls,
847 };
848
849 static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip)
850 {
851 struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw;
852 enum pvr2_config cfg = dip->config;
853 char msg[80];
854 unsigned int mcnt;
855
856 /* Construct the unregistration message *before* we actually
857 perform the unregistration step. By doing it this way we don't
858 have to worry about potentially touching deleted resources. */
859 mcnt = scnprintf(msg, sizeof(msg) - 1,
860 "pvrusb2: unregistered device %s [%s]",
861 video_device_node_name(&dip->devbase),
862 pvr2_config_get_name(cfg));
863 msg[mcnt] = 0;
864
865 pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1);
866
867 /* Paranoia */
868 dip->v4lp = NULL;
869 dip->stream = NULL;
870
871 /* Actual deallocation happens later when all internal references
872 are gone. */
873 video_unregister_device(&dip->devbase);
874
875 printk(KERN_INFO "%s\n", msg);
876
877 }
878
879
880 static void pvr2_v4l2_dev_disassociate_parent(struct pvr2_v4l2_dev *dip)
881 {
882 if (!dip) return;
883 if (!dip->devbase.v4l2_dev->dev) return;
884 dip->devbase.v4l2_dev->dev = NULL;
885 device_move(&dip->devbase.dev, NULL, DPM_ORDER_NONE);
886 }
887
888
889 static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp)
890 {
891 if (vp->dev_video) {
892 pvr2_v4l2_dev_destroy(vp->dev_video);
893 vp->dev_video = NULL;
894 }
895 if (vp->dev_radio) {
896 pvr2_v4l2_dev_destroy(vp->dev_radio);
897 vp->dev_radio = NULL;
898 }
899
900 pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp);
901 pvr2_channel_done(&vp->channel);
902 kfree(vp);
903 }
904
905
906 static void pvr2_video_device_release(struct video_device *vdev)
907 {
908 struct pvr2_v4l2_dev *dev;
909 dev = container_of(vdev,struct pvr2_v4l2_dev,devbase);
910 kfree(dev);
911 }
912
913
914 static void pvr2_v4l2_internal_check(struct pvr2_channel *chp)
915 {
916 struct pvr2_v4l2 *vp;
917 vp = container_of(chp,struct pvr2_v4l2,channel);
918 if (!vp->channel.mc_head->disconnect_flag) return;
919 pvr2_v4l2_dev_disassociate_parent(vp->dev_video);
920 pvr2_v4l2_dev_disassociate_parent(vp->dev_radio);
921 if (!list_empty(&vp->dev_video->devbase.fh_list) ||
922 !list_empty(&vp->dev_radio->devbase.fh_list))
923 return;
924 pvr2_v4l2_destroy_no_lock(vp);
925 }
926
927
928 static long pvr2_v4l2_ioctl(struct file *file,
929 unsigned int cmd, unsigned long arg)
930 {
931
932 struct pvr2_v4l2_fh *fh = file->private_data;
933 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
934 long ret = -EINVAL;
935
936 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL)
937 v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
938
939 if (!pvr2_hdw_dev_ok(hdw)) {
940 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
941 "ioctl failed - bad or no context");
942 return -EFAULT;
943 }
944
945 ret = video_ioctl2(file, cmd, arg);
946
947 pvr2_hdw_commit_ctl(hdw);
948
949 if (ret < 0) {
950 if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
951 pvr2_trace(PVR2_TRACE_V4LIOCTL,
952 "pvr2_v4l2_do_ioctl failure, ret=%ld command was:",
953 ret);
954 v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
955 }
956 } else {
957 pvr2_trace(PVR2_TRACE_V4LIOCTL,
958 "pvr2_v4l2_do_ioctl complete, ret=%ld (0x%lx)",
959 ret, ret);
960 }
961 return ret;
962
963 }
964
965
966 static int pvr2_v4l2_release(struct file *file)
967 {
968 struct pvr2_v4l2_fh *fhp = file->private_data;
969 struct pvr2_v4l2 *vp = fhp->pdi->v4lp;
970 struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw;
971
972 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release");
973
974 if (fhp->rhp) {
975 struct pvr2_stream *sp;
976 pvr2_hdw_set_streaming(hdw,0);
977 sp = pvr2_ioread_get_stream(fhp->rhp);
978 if (sp) pvr2_stream_set_callback(sp,NULL,NULL);
979 pvr2_ioread_destroy(fhp->rhp);
980 fhp->rhp = NULL;
981 }
982
983 v4l2_fh_del(&fhp->fh);
984 v4l2_fh_exit(&fhp->fh);
985 file->private_data = NULL;
986
987 pvr2_channel_done(&fhp->channel);
988 pvr2_trace(PVR2_TRACE_STRUCT,
989 "Destroying pvr_v4l2_fh id=%p",fhp);
990 if (fhp->input_map) {
991 kfree(fhp->input_map);
992 fhp->input_map = NULL;
993 }
994 kfree(fhp);
995 if (vp->channel.mc_head->disconnect_flag &&
996 list_empty(&vp->dev_video->devbase.fh_list) &&
997 list_empty(&vp->dev_radio->devbase.fh_list)) {
998 pvr2_v4l2_destroy_no_lock(vp);
999 }
1000 return 0;
1001 }
1002
1003
1004 static int pvr2_v4l2_open(struct file *file)
1005 {
1006 struct pvr2_v4l2_dev *dip; /* Our own context pointer */
1007 struct pvr2_v4l2_fh *fhp;
1008 struct pvr2_v4l2 *vp;
1009 struct pvr2_hdw *hdw;
1010 unsigned int input_mask = 0;
1011 unsigned int input_cnt,idx;
1012 int ret = 0;
1013
1014 dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase);
1015
1016 vp = dip->v4lp;
1017 hdw = vp->channel.hdw;
1018
1019 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open");
1020
1021 if (!pvr2_hdw_dev_ok(hdw)) {
1022 pvr2_trace(PVR2_TRACE_OPEN_CLOSE,
1023 "pvr2_v4l2_open: hardware not ready");
1024 return -EIO;
1025 }
1026
1027 fhp = kzalloc(sizeof(*fhp),GFP_KERNEL);
1028 if (!fhp) {
1029 return -ENOMEM;
1030 }
1031
1032 v4l2_fh_init(&fhp->fh, &dip->devbase);
1033 init_waitqueue_head(&fhp->wait_data);
1034 fhp->pdi = dip;
1035
1036 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp);
1037 pvr2_channel_init(&fhp->channel,vp->channel.mc_head);
1038
1039 if (dip->v4l_type == VFL_TYPE_RADIO) {
1040 /* Opening device as a radio, legal input selection subset
1041 is just the radio. */
1042 input_mask = (1 << PVR2_CVAL_INPUT_RADIO);
1043 } else {
1044 /* Opening the main V4L device, legal input selection
1045 subset includes all analog inputs. */
1046 input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) |
1047 (1 << PVR2_CVAL_INPUT_TV) |
1048 (1 << PVR2_CVAL_INPUT_COMPOSITE) |
1049 (1 << PVR2_CVAL_INPUT_SVIDEO));
1050 }
1051 ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask);
1052 if (ret) {
1053 pvr2_channel_done(&fhp->channel);
1054 pvr2_trace(PVR2_TRACE_STRUCT,
1055 "Destroying pvr_v4l2_fh id=%p (input mask error)",
1056 fhp);
1057
1058 kfree(fhp);
1059 return ret;
1060 }
1061
1062 input_mask &= pvr2_hdw_get_input_available(hdw);
1063 input_cnt = 0;
1064 for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) {
1065 if (input_mask & (1 << idx)) input_cnt++;
1066 }
1067 fhp->input_cnt = input_cnt;
1068 fhp->input_map = kzalloc(input_cnt,GFP_KERNEL);
1069 if (!fhp->input_map) {
1070 pvr2_channel_done(&fhp->channel);
1071 pvr2_trace(PVR2_TRACE_STRUCT,
1072 "Destroying pvr_v4l2_fh id=%p (input map failure)",
1073 fhp);
1074 kfree(fhp);
1075 return -ENOMEM;
1076 }
1077 input_cnt = 0;
1078 for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) {
1079 if (!(input_mask & (1 << idx))) continue;
1080 fhp->input_map[input_cnt++] = idx;
1081 }
1082
1083 fhp->file = file;
1084 file->private_data = fhp;
1085
1086 fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw);
1087 v4l2_fh_add(&fhp->fh);
1088
1089 return 0;
1090 }
1091
1092
1093 static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
1094 {
1095 wake_up(&fhp->wait_data);
1096 }
1097
1098 static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
1099 {
1100 int ret;
1101 struct pvr2_stream *sp;
1102 struct pvr2_hdw *hdw;
1103 if (fh->rhp) return 0;
1104
1105 if (!fh->pdi->stream) {
1106 /* No stream defined for this node. This means that we're
1107 not currently allowed to stream from this node. */
1108 return -EPERM;
1109 }
1110
1111 /* First read() attempt. Try to claim the stream and start
1112 it... */
1113 if ((ret = pvr2_channel_claim_stream(&fh->channel,
1114 fh->pdi->stream)) != 0) {
1115 /* Someone else must already have it */
1116 return ret;
1117 }
1118
1119 fh->rhp = pvr2_channel_create_mpeg_stream(fh->pdi->stream);
1120 if (!fh->rhp) {
1121 pvr2_channel_claim_stream(&fh->channel,NULL);
1122 return -ENOMEM;
1123 }
1124
1125 hdw = fh->channel.mc_head->hdw;
1126 sp = fh->pdi->stream->stream;
1127 pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
1128 pvr2_hdw_set_stream_type(hdw,fh->pdi->config);
1129 if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret;
1130 return pvr2_ioread_set_enabled(fh->rhp,!0);
1131 }
1132
1133
1134 static ssize_t pvr2_v4l2_read(struct file *file,
1135 char __user *buff, size_t count, loff_t *ppos)
1136 {
1137 struct pvr2_v4l2_fh *fh = file->private_data;
1138 int ret;
1139
1140 if (fh->fw_mode_flag) {
1141 struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
1142 char *tbuf;
1143 int c1,c2;
1144 int tcnt = 0;
1145 unsigned int offs = *ppos;
1146
1147 tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL);
1148 if (!tbuf) return -ENOMEM;
1149
1150 while (count) {
1151 c1 = count;
1152 if (c1 > PAGE_SIZE) c1 = PAGE_SIZE;
1153 c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1);
1154 if (c2 < 0) {
1155 tcnt = c2;
1156 break;
1157 }
1158 if (!c2) break;
1159 if (copy_to_user(buff,tbuf,c2)) {
1160 tcnt = -EFAULT;
1161 break;
1162 }
1163 offs += c2;
1164 tcnt += c2;
1165 buff += c2;
1166 count -= c2;
1167 *ppos += c2;
1168 }
1169 kfree(tbuf);
1170 return tcnt;
1171 }
1172
1173 if (!fh->rhp) {
1174 ret = pvr2_v4l2_iosetup(fh);
1175 if (ret) {
1176 return ret;
1177 }
1178 }
1179
1180 for (;;) {
1181 ret = pvr2_ioread_read(fh->rhp,buff,count);
1182 if (ret >= 0) break;
1183 if (ret != -EAGAIN) break;
1184 if (file->f_flags & O_NONBLOCK) break;
1185 /* Doing blocking I/O. Wait here. */
1186 ret = wait_event_interruptible(
1187 fh->wait_data,
1188 pvr2_ioread_avail(fh->rhp) >= 0);
1189 if (ret < 0) break;
1190 }
1191
1192 return ret;
1193 }
1194
1195
1196 static unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait)
1197 {
1198 unsigned int mask = 0;
1199 struct pvr2_v4l2_fh *fh = file->private_data;
1200 int ret;
1201
1202 if (fh->fw_mode_flag) {
1203 mask |= POLLIN | POLLRDNORM;
1204 return mask;
1205 }
1206
1207 if (!fh->rhp) {
1208 ret = pvr2_v4l2_iosetup(fh);
1209 if (ret) return POLLERR;
1210 }
1211
1212 poll_wait(file,&fh->wait_data,wait);
1213
1214 if (pvr2_ioread_avail(fh->rhp) >= 0) {
1215 mask |= POLLIN | POLLRDNORM;
1216 }
1217
1218 return mask;
1219 }
1220
1221
1222 static const struct v4l2_file_operations vdev_fops = {
1223 .owner = THIS_MODULE,
1224 .open = pvr2_v4l2_open,
1225 .release = pvr2_v4l2_release,
1226 .read = pvr2_v4l2_read,
1227 .unlocked_ioctl = pvr2_v4l2_ioctl,
1228 .poll = pvr2_v4l2_poll,
1229 };
1230
1231
1232 static struct video_device vdev_template = {
1233 .fops = &vdev_fops,
1234 };
1235
1236
1237 static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip,
1238 struct pvr2_v4l2 *vp,
1239 int v4l_type)
1240 {
1241 int mindevnum;
1242 int unit_number;
1243 struct pvr2_hdw *hdw;
1244 int *nr_ptr = NULL;
1245 dip->v4lp = vp;
1246
1247 hdw = vp->channel.mc_head->hdw;
1248 dip->v4l_type = v4l_type;
1249 switch (v4l_type) {
1250 case VFL_TYPE_GRABBER:
1251 dip->stream = &vp->channel.mc_head->video_stream;
1252 dip->config = pvr2_config_mpeg;
1253 dip->minor_type = pvr2_v4l_type_video;
1254 nr_ptr = video_nr;
1255 if (!dip->stream) {
1256 pr_err(KBUILD_MODNAME
1257 ": Failed to set up pvrusb2 v4l video dev due to missing stream instance\n");
1258 return;
1259 }
1260 break;
1261 case VFL_TYPE_VBI:
1262 dip->config = pvr2_config_vbi;
1263 dip->minor_type = pvr2_v4l_type_vbi;
1264 nr_ptr = vbi_nr;
1265 break;
1266 case VFL_TYPE_RADIO:
1267 dip->stream = &vp->channel.mc_head->video_stream;
1268 dip->config = pvr2_config_mpeg;
1269 dip->minor_type = pvr2_v4l_type_radio;
1270 nr_ptr = radio_nr;
1271 break;
1272 default:
1273 /* Bail out (this should be impossible) */
1274 pr_err(KBUILD_MODNAME ": Failed to set up pvrusb2 v4l dev due to unrecognized config\n");
1275 return;
1276 }
1277
1278 dip->devbase = vdev_template;
1279 dip->devbase.release = pvr2_video_device_release;
1280 dip->devbase.ioctl_ops = &pvr2_ioctl_ops;
1281 {
1282 int val;
1283 pvr2_ctrl_get_value(
1284 pvr2_hdw_get_ctrl_by_id(hdw,
1285 PVR2_CID_STDAVAIL), &val);
1286 dip->devbase.tvnorms = (v4l2_std_id)val;
1287 }
1288
1289 mindevnum = -1;
1290 unit_number = pvr2_hdw_get_unit_number(hdw);
1291 if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) {
1292 mindevnum = nr_ptr[unit_number];
1293 }
1294 pvr2_hdw_set_v4l2_dev(hdw, &dip->devbase);
1295 if ((video_register_device(&dip->devbase,
1296 dip->v4l_type, mindevnum) < 0) &&
1297 (video_register_device(&dip->devbase,
1298 dip->v4l_type, -1) < 0)) {
1299 pr_err(KBUILD_MODNAME
1300 ": Failed to register pvrusb2 v4l device\n");
1301 }
1302
1303 printk(KERN_INFO "pvrusb2: registered device %s [%s]\n",
1304 video_device_node_name(&dip->devbase),
1305 pvr2_config_get_name(dip->config));
1306
1307 pvr2_hdw_v4l_store_minor_number(hdw,
1308 dip->minor_type,dip->devbase.minor);
1309 }
1310
1311
1312 struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp)
1313 {
1314 struct pvr2_v4l2 *vp;
1315
1316 vp = kzalloc(sizeof(*vp),GFP_KERNEL);
1317 if (!vp) return vp;
1318 pvr2_channel_init(&vp->channel,mnp);
1319 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp);
1320
1321 vp->channel.check_func = pvr2_v4l2_internal_check;
1322
1323 /* register streams */
1324 vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL);
1325 if (!vp->dev_video) goto fail;
1326 pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER);
1327 if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) &
1328 (1 << PVR2_CVAL_INPUT_RADIO)) {
1329 vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL);
1330 if (!vp->dev_radio) goto fail;
1331 pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO);
1332 }
1333
1334 return vp;
1335 fail:
1336 pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p",vp);
1337 pvr2_v4l2_destroy_no_lock(vp);
1338 return NULL;
1339 }
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