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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/version.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 <media/v4l2-dev.h> | |
32 | #include <media/v4l2-common.h> | |
33 | #include <media/v4l2-ioctl.h> | |
34 | ||
35 | struct pvr2_v4l2_dev; | |
36 | struct pvr2_v4l2_fh; | |
37 | struct pvr2_v4l2; | |
38 | ||
39 | struct pvr2_v4l2_dev { | |
40 | struct video_device devbase; /* MUST be first! */ | |
41 | struct pvr2_v4l2 *v4lp; | |
42 | struct pvr2_context_stream *stream; | |
43 | /* Information about this device: */ | |
44 | enum pvr2_config config; /* Expected stream format */ | |
45 | int v4l_type; /* V4L defined type for this device node */ | |
46 | enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */ | |
47 | }; | |
48 | ||
49 | struct pvr2_v4l2_fh { | |
50 | struct pvr2_channel channel; | |
51 | struct pvr2_v4l2_dev *dev_info; | |
52 | enum v4l2_priority prio; | |
53 | struct pvr2_ioread *rhp; | |
54 | struct file *file; | |
55 | struct pvr2_v4l2 *vhead; | |
56 | struct pvr2_v4l2_fh *vnext; | |
57 | struct pvr2_v4l2_fh *vprev; | |
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 | struct pvr2_v4l2_fh *vfirst; | |
68 | struct pvr2_v4l2_fh *vlast; | |
69 | ||
70 | struct v4l2_prio_state prio; | |
71 | ||
72 | /* streams - Note that these must be separately, individually, | |
73 | * allocated pointers. This is because the v4l core is going to | |
74 | * manage their deletion - separately, individually... */ | |
75 | struct pvr2_v4l2_dev *dev_video; | |
76 | struct pvr2_v4l2_dev *dev_radio; | |
77 | }; | |
78 | ||
79 | static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; | |
80 | module_param_array(video_nr, int, NULL, 0444); | |
81 | MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor"); | |
82 | static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; | |
83 | module_param_array(radio_nr, int, NULL, 0444); | |
84 | MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor"); | |
85 | static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; | |
86 | module_param_array(vbi_nr, int, NULL, 0444); | |
87 | MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor"); | |
88 | ||
89 | static struct v4l2_capability pvr_capability ={ | |
90 | .driver = "pvrusb2", | |
91 | .card = "Hauppauge WinTV pvr-usb2", | |
92 | .bus_info = "usb", | |
93 | .version = KERNEL_VERSION(0,8,0), | |
94 | .capabilities = (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE | | |
95 | V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_RADIO | | |
96 | V4L2_CAP_READWRITE), | |
97 | .reserved = {0,0,0,0} | |
98 | }; | |
99 | ||
100 | static struct v4l2_fmtdesc pvr_fmtdesc [] = { | |
101 | { | |
102 | .index = 0, | |
103 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
104 | .flags = V4L2_FMT_FLAG_COMPRESSED, | |
105 | .description = "MPEG1/2", | |
106 | // This should really be V4L2_PIX_FMT_MPEG, but xawtv | |
107 | // breaks when I do that. | |
108 | .pixelformat = 0, // V4L2_PIX_FMT_MPEG, | |
109 | .reserved = { 0, 0, 0, 0 } | |
110 | } | |
111 | }; | |
112 | ||
113 | #define PVR_FORMAT_PIX 0 | |
114 | #define PVR_FORMAT_VBI 1 | |
115 | ||
116 | static struct v4l2_format pvr_format [] = { | |
117 | [PVR_FORMAT_PIX] = { | |
118 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
119 | .fmt = { | |
120 | .pix = { | |
121 | .width = 720, | |
122 | .height = 576, | |
123 | // This should really be V4L2_PIX_FMT_MPEG, | |
124 | // but xawtv breaks when I do that. | |
125 | .pixelformat = 0, // V4L2_PIX_FMT_MPEG, | |
126 | .field = V4L2_FIELD_INTERLACED, | |
127 | .bytesperline = 0, // doesn't make sense | |
128 | // here | |
129 | //FIXME : Don't know what to put here... | |
130 | .sizeimage = (32*1024), | |
131 | .colorspace = 0, // doesn't make sense here | |
132 | .priv = 0 | |
133 | } | |
134 | } | |
135 | }, | |
136 | [PVR_FORMAT_VBI] = { | |
137 | .type = V4L2_BUF_TYPE_VBI_CAPTURE, | |
138 | .fmt = { | |
139 | .vbi = { | |
140 | .sampling_rate = 27000000, | |
141 | .offset = 248, | |
142 | .samples_per_line = 1443, | |
143 | .sample_format = V4L2_PIX_FMT_GREY, | |
144 | .start = { 0, 0 }, | |
145 | .count = { 0, 0 }, | |
146 | .flags = 0, | |
147 | .reserved = { 0, 0 } | |
148 | } | |
149 | } | |
150 | } | |
151 | }; | |
152 | ||
153 | ||
154 | static const char *get_v4l_name(int v4l_type) | |
155 | { | |
156 | switch (v4l_type) { | |
157 | case VFL_TYPE_GRABBER: return "video"; | |
158 | case VFL_TYPE_RADIO: return "radio"; | |
159 | case VFL_TYPE_VBI: return "vbi"; | |
160 | default: return "?"; | |
161 | } | |
162 | } | |
163 | ||
164 | ||
165 | /* | |
166 | * pvr_ioctl() | |
167 | * | |
168 | * This is part of Video 4 Linux API. The procedure handles ioctl() calls. | |
169 | * | |
170 | */ | |
171 | static int pvr2_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) | |
172 | { | |
173 | struct pvr2_v4l2_fh *fh = file->private_data; | |
174 | struct pvr2_v4l2 *vp = fh->vhead; | |
175 | struct pvr2_v4l2_dev *dev_info = fh->dev_info; | |
176 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; | |
177 | int ret = -EINVAL; | |
178 | ||
179 | if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { | |
180 | v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw),cmd); | |
181 | } | |
182 | ||
183 | if (!pvr2_hdw_dev_ok(hdw)) { | |
184 | pvr2_trace(PVR2_TRACE_ERROR_LEGS, | |
185 | "ioctl failed - bad or no context"); | |
186 | return -EFAULT; | |
187 | } | |
188 | ||
189 | /* check priority */ | |
190 | switch (cmd) { | |
191 | case VIDIOC_S_CTRL: | |
192 | case VIDIOC_S_STD: | |
193 | case VIDIOC_S_INPUT: | |
194 | case VIDIOC_S_TUNER: | |
195 | case VIDIOC_S_FREQUENCY: | |
196 | ret = v4l2_prio_check(&vp->prio, &fh->prio); | |
197 | if (ret) | |
198 | return ret; | |
199 | } | |
200 | ||
201 | switch (cmd) { | |
202 | case VIDIOC_QUERYCAP: | |
203 | { | |
204 | struct v4l2_capability *cap = arg; | |
205 | ||
206 | memcpy(cap, &pvr_capability, sizeof(struct v4l2_capability)); | |
207 | strlcpy(cap->bus_info,pvr2_hdw_get_bus_info(hdw), | |
208 | sizeof(cap->bus_info)); | |
209 | strlcpy(cap->card,pvr2_hdw_get_desc(hdw),sizeof(cap->card)); | |
210 | ||
211 | ret = 0; | |
212 | break; | |
213 | } | |
214 | ||
215 | case VIDIOC_G_PRIORITY: | |
216 | { | |
217 | enum v4l2_priority *p = arg; | |
218 | ||
219 | *p = v4l2_prio_max(&vp->prio); | |
220 | ret = 0; | |
221 | break; | |
222 | } | |
223 | ||
224 | case VIDIOC_S_PRIORITY: | |
225 | { | |
226 | enum v4l2_priority *prio = arg; | |
227 | ||
228 | ret = v4l2_prio_change(&vp->prio, &fh->prio, *prio); | |
229 | break; | |
230 | } | |
231 | ||
232 | case VIDIOC_ENUMSTD: | |
233 | { | |
234 | struct v4l2_standard *vs = (struct v4l2_standard *)arg; | |
235 | int idx = vs->index; | |
236 | ret = pvr2_hdw_get_stdenum_value(hdw,vs,idx+1); | |
237 | break; | |
238 | } | |
239 | ||
240 | case VIDIOC_G_STD: | |
241 | { | |
242 | int val = 0; | |
243 | ret = pvr2_ctrl_get_value( | |
244 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_STDCUR),&val); | |
245 | *(v4l2_std_id *)arg = val; | |
246 | break; | |
247 | } | |
248 | ||
249 | case VIDIOC_S_STD: | |
250 | { | |
251 | ret = pvr2_ctrl_set_value( | |
252 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_STDCUR), | |
253 | *(v4l2_std_id *)arg); | |
254 | break; | |
255 | } | |
256 | ||
257 | case VIDIOC_ENUMINPUT: | |
258 | { | |
259 | struct pvr2_ctrl *cptr; | |
260 | struct v4l2_input *vi = (struct v4l2_input *)arg; | |
261 | struct v4l2_input tmp; | |
262 | unsigned int cnt; | |
263 | int val; | |
264 | ||
265 | cptr = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); | |
266 | ||
267 | memset(&tmp,0,sizeof(tmp)); | |
268 | tmp.index = vi->index; | |
269 | ret = 0; | |
270 | if ((vi->index < 0) || (vi->index >= fh->input_cnt)) { | |
271 | ret = -EINVAL; | |
272 | break; | |
273 | } | |
274 | val = fh->input_map[vi->index]; | |
275 | switch (val) { | |
276 | case PVR2_CVAL_INPUT_TV: | |
277 | case PVR2_CVAL_INPUT_DTV: | |
278 | case PVR2_CVAL_INPUT_RADIO: | |
279 | tmp.type = V4L2_INPUT_TYPE_TUNER; | |
280 | break; | |
281 | case PVR2_CVAL_INPUT_SVIDEO: | |
282 | case PVR2_CVAL_INPUT_COMPOSITE: | |
283 | tmp.type = V4L2_INPUT_TYPE_CAMERA; | |
284 | break; | |
285 | default: | |
286 | ret = -EINVAL; | |
287 | break; | |
288 | } | |
289 | if (ret < 0) break; | |
290 | ||
291 | cnt = 0; | |
292 | pvr2_ctrl_get_valname(cptr,val, | |
293 | tmp.name,sizeof(tmp.name)-1,&cnt); | |
294 | tmp.name[cnt] = 0; | |
295 | ||
296 | /* Don't bother with audioset, since this driver currently | |
297 | always switches the audio whenever the video is | |
298 | switched. */ | |
299 | ||
300 | /* Handling std is a tougher problem. It doesn't make | |
301 | sense in cases where a device might be multi-standard. | |
302 | We could just copy out the current value for the | |
303 | standard, but it can change over time. For now just | |
304 | leave it zero. */ | |
305 | ||
306 | memcpy(vi, &tmp, sizeof(tmp)); | |
307 | ||
308 | ret = 0; | |
309 | break; | |
310 | } | |
311 | ||
312 | case VIDIOC_G_INPUT: | |
313 | { | |
314 | unsigned int idx; | |
315 | struct pvr2_ctrl *cptr; | |
316 | struct v4l2_input *vi = (struct v4l2_input *)arg; | |
317 | int val; | |
318 | cptr = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); | |
319 | val = 0; | |
320 | ret = pvr2_ctrl_get_value(cptr,&val); | |
321 | vi->index = 0; | |
322 | for (idx = 0; idx < fh->input_cnt; idx++) { | |
323 | if (fh->input_map[idx] == val) { | |
324 | vi->index = idx; | |
325 | break; | |
326 | } | |
327 | } | |
328 | break; | |
329 | } | |
330 | ||
331 | case VIDIOC_S_INPUT: | |
332 | { | |
333 | struct v4l2_input *vi = (struct v4l2_input *)arg; | |
334 | if ((vi->index < 0) || (vi->index >= fh->input_cnt)) { | |
335 | ret = -ERANGE; | |
336 | break; | |
337 | } | |
338 | ret = pvr2_ctrl_set_value( | |
339 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT), | |
340 | fh->input_map[vi->index]); | |
341 | break; | |
342 | } | |
343 | ||
344 | case VIDIOC_ENUMAUDIO: | |
345 | { | |
346 | /* pkt: FIXME: We are returning one "fake" input here | |
347 | which could very well be called "whatever_we_like". | |
348 | This is for apps that want to see an audio input | |
349 | just to feel comfortable, as well as to test if | |
350 | it can do stereo or sth. There is actually no guarantee | |
351 | that the actual audio input cannot change behind the app's | |
352 | back, but most applications should not mind that either. | |
353 | ||
354 | Hopefully, mplayer people will work with us on this (this | |
355 | whole mess is to support mplayer pvr://), or Hans will come | |
356 | up with a more standard way to say "we have inputs but we | |
357 | don 't want you to change them independent of video" which | |
358 | will sort this mess. | |
359 | */ | |
360 | struct v4l2_audio *vin = arg; | |
361 | ret = -EINVAL; | |
362 | if (vin->index > 0) break; | |
363 | strncpy(vin->name, "PVRUSB2 Audio",14); | |
364 | vin->capability = V4L2_AUDCAP_STEREO; | |
365 | ret = 0; | |
366 | break; | |
367 | break; | |
368 | } | |
369 | ||
370 | case VIDIOC_G_AUDIO: | |
371 | { | |
372 | /* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */ | |
373 | struct v4l2_audio *vin = arg; | |
374 | memset(vin,0,sizeof(*vin)); | |
375 | vin->index = 0; | |
376 | strncpy(vin->name, "PVRUSB2 Audio",14); | |
377 | vin->capability = V4L2_AUDCAP_STEREO; | |
378 | ret = 0; | |
379 | break; | |
380 | } | |
381 | ||
382 | case VIDIOC_S_AUDIO: | |
383 | { | |
384 | ret = -EINVAL; | |
385 | break; | |
386 | } | |
387 | case VIDIOC_G_TUNER: | |
388 | { | |
389 | struct v4l2_tuner *vt = (struct v4l2_tuner *)arg; | |
390 | ||
391 | if (vt->index != 0) break; /* Only answer for the 1st tuner */ | |
392 | ||
393 | pvr2_hdw_execute_tuner_poll(hdw); | |
394 | ret = pvr2_hdw_get_tuner_status(hdw,vt); | |
395 | break; | |
396 | } | |
397 | ||
398 | case VIDIOC_S_TUNER: | |
399 | { | |
400 | struct v4l2_tuner *vt=(struct v4l2_tuner *)arg; | |
401 | ||
402 | if (vt->index != 0) | |
403 | break; | |
404 | ||
405 | ret = pvr2_ctrl_set_value( | |
406 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_AUDIOMODE), | |
407 | vt->audmode); | |
408 | break; | |
409 | } | |
410 | ||
411 | case VIDIOC_S_FREQUENCY: | |
412 | { | |
413 | const struct v4l2_frequency *vf = (struct v4l2_frequency *)arg; | |
414 | unsigned long fv; | |
415 | struct v4l2_tuner vt; | |
416 | int cur_input; | |
417 | struct pvr2_ctrl *ctrlp; | |
418 | ret = pvr2_hdw_get_tuner_status(hdw,&vt); | |
419 | if (ret != 0) break; | |
420 | ctrlp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); | |
421 | ret = pvr2_ctrl_get_value(ctrlp,&cur_input); | |
422 | if (ret != 0) break; | |
423 | if (vf->type == V4L2_TUNER_RADIO) { | |
424 | if (cur_input != PVR2_CVAL_INPUT_RADIO) { | |
425 | pvr2_ctrl_set_value(ctrlp, | |
426 | PVR2_CVAL_INPUT_RADIO); | |
427 | } | |
428 | } else { | |
429 | if (cur_input == PVR2_CVAL_INPUT_RADIO) { | |
430 | pvr2_ctrl_set_value(ctrlp, | |
431 | PVR2_CVAL_INPUT_TV); | |
432 | } | |
433 | } | |
434 | fv = vf->frequency; | |
435 | if (vt.capability & V4L2_TUNER_CAP_LOW) { | |
436 | fv = (fv * 125) / 2; | |
437 | } else { | |
438 | fv = fv * 62500; | |
439 | } | |
440 | ret = pvr2_ctrl_set_value( | |
441 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv); | |
442 | break; | |
443 | } | |
444 | ||
445 | case VIDIOC_G_FREQUENCY: | |
446 | { | |
447 | struct v4l2_frequency *vf = (struct v4l2_frequency *)arg; | |
448 | int val = 0; | |
449 | int cur_input; | |
450 | struct v4l2_tuner vt; | |
451 | ret = pvr2_hdw_get_tuner_status(hdw,&vt); | |
452 | if (ret != 0) break; | |
453 | ret = pvr2_ctrl_get_value( | |
454 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY), | |
455 | &val); | |
456 | if (ret != 0) break; | |
457 | pvr2_ctrl_get_value( | |
458 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT), | |
459 | &cur_input); | |
460 | if (cur_input == PVR2_CVAL_INPUT_RADIO) { | |
461 | vf->type = V4L2_TUNER_RADIO; | |
462 | } else { | |
463 | vf->type = V4L2_TUNER_ANALOG_TV; | |
464 | } | |
465 | if (vt.capability & V4L2_TUNER_CAP_LOW) { | |
466 | val = (val * 2) / 125; | |
467 | } else { | |
468 | val /= 62500; | |
469 | } | |
470 | vf->frequency = val; | |
471 | break; | |
472 | } | |
473 | ||
474 | case VIDIOC_ENUM_FMT: | |
475 | { | |
476 | struct v4l2_fmtdesc *fd = (struct v4l2_fmtdesc *)arg; | |
477 | ||
478 | /* Only one format is supported : mpeg.*/ | |
479 | if (fd->index != 0) | |
480 | break; | |
481 | ||
482 | memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc)); | |
483 | ret = 0; | |
484 | break; | |
485 | } | |
486 | ||
487 | case VIDIOC_G_FMT: | |
488 | { | |
489 | struct v4l2_format *vf = (struct v4l2_format *)arg; | |
490 | int val; | |
491 | switch(vf->type) { | |
492 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
493 | memcpy(vf, &pvr_format[PVR_FORMAT_PIX], | |
494 | sizeof(struct v4l2_format)); | |
495 | val = 0; | |
496 | pvr2_ctrl_get_value( | |
497 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_HRES), | |
498 | &val); | |
499 | vf->fmt.pix.width = val; | |
500 | val = 0; | |
501 | pvr2_ctrl_get_value( | |
502 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_VRES), | |
503 | &val); | |
504 | vf->fmt.pix.height = val; | |
505 | ret = 0; | |
506 | break; | |
507 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
508 | // ????? Still need to figure out to do VBI correctly | |
509 | ret = -EINVAL; | |
510 | break; | |
511 | default: | |
512 | ret = -EINVAL; | |
513 | break; | |
514 | } | |
515 | break; | |
516 | } | |
517 | ||
518 | case VIDIOC_TRY_FMT: | |
519 | case VIDIOC_S_FMT: | |
520 | { | |
521 | struct v4l2_format *vf = (struct v4l2_format *)arg; | |
522 | ||
523 | ret = 0; | |
524 | switch(vf->type) { | |
525 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { | |
526 | int lmin,lmax,ldef; | |
527 | struct pvr2_ctrl *hcp,*vcp; | |
528 | int h = vf->fmt.pix.height; | |
529 | int w = vf->fmt.pix.width; | |
530 | hcp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_HRES); | |
531 | vcp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_VRES); | |
532 | ||
533 | lmin = pvr2_ctrl_get_min(hcp); | |
534 | lmax = pvr2_ctrl_get_max(hcp); | |
535 | pvr2_ctrl_get_def(hcp, &ldef); | |
536 | if (w == -1) { | |
537 | w = ldef; | |
538 | } else if (w < lmin) { | |
539 | w = lmin; | |
540 | } else if (w > lmax) { | |
541 | w = lmax; | |
542 | } | |
543 | lmin = pvr2_ctrl_get_min(vcp); | |
544 | lmax = pvr2_ctrl_get_max(vcp); | |
545 | pvr2_ctrl_get_def(vcp, &ldef); | |
546 | if (h == -1) { | |
547 | h = ldef; | |
548 | } else if (h < lmin) { | |
549 | h = lmin; | |
550 | } else if (h > lmax) { | |
551 | h = lmax; | |
552 | } | |
553 | ||
554 | memcpy(vf, &pvr_format[PVR_FORMAT_PIX], | |
555 | sizeof(struct v4l2_format)); | |
556 | vf->fmt.pix.width = w; | |
557 | vf->fmt.pix.height = h; | |
558 | ||
559 | if (cmd == VIDIOC_S_FMT) { | |
560 | pvr2_ctrl_set_value(hcp,vf->fmt.pix.width); | |
561 | pvr2_ctrl_set_value(vcp,vf->fmt.pix.height); | |
562 | } | |
563 | } break; | |
564 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
565 | // ????? Still need to figure out to do VBI correctly | |
566 | ret = -EINVAL; | |
567 | break; | |
568 | default: | |
569 | ret = -EINVAL; | |
570 | break; | |
571 | } | |
572 | break; | |
573 | } | |
574 | ||
575 | case VIDIOC_STREAMON: | |
576 | { | |
577 | if (!fh->dev_info->stream) { | |
578 | /* No stream defined for this node. This means | |
579 | that we're not currently allowed to stream from | |
580 | this node. */ | |
581 | ret = -EPERM; | |
582 | break; | |
583 | } | |
584 | ret = pvr2_hdw_set_stream_type(hdw,dev_info->config); | |
585 | if (ret < 0) return ret; | |
586 | ret = pvr2_hdw_set_streaming(hdw,!0); | |
587 | break; | |
588 | } | |
589 | ||
590 | case VIDIOC_STREAMOFF: | |
591 | { | |
592 | if (!fh->dev_info->stream) { | |
593 | /* No stream defined for this node. This means | |
594 | that we're not currently allowed to stream from | |
595 | this node. */ | |
596 | ret = -EPERM; | |
597 | break; | |
598 | } | |
599 | ret = pvr2_hdw_set_streaming(hdw,0); | |
600 | break; | |
601 | } | |
602 | ||
603 | case VIDIOC_QUERYCTRL: | |
604 | { | |
605 | struct pvr2_ctrl *cptr; | |
606 | int val; | |
607 | struct v4l2_queryctrl *vc = (struct v4l2_queryctrl *)arg; | |
608 | ret = 0; | |
609 | if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) { | |
610 | cptr = pvr2_hdw_get_ctrl_nextv4l( | |
611 | hdw,(vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL)); | |
612 | if (cptr) vc->id = pvr2_ctrl_get_v4lid(cptr); | |
613 | } else { | |
614 | cptr = pvr2_hdw_get_ctrl_v4l(hdw,vc->id); | |
615 | } | |
616 | if (!cptr) { | |
617 | pvr2_trace(PVR2_TRACE_V4LIOCTL, | |
618 | "QUERYCTRL id=0x%x not implemented here", | |
619 | vc->id); | |
620 | ret = -EINVAL; | |
621 | break; | |
622 | } | |
623 | ||
624 | pvr2_trace(PVR2_TRACE_V4LIOCTL, | |
625 | "QUERYCTRL id=0x%x mapping name=%s (%s)", | |
626 | vc->id,pvr2_ctrl_get_name(cptr), | |
627 | pvr2_ctrl_get_desc(cptr)); | |
628 | strlcpy(vc->name,pvr2_ctrl_get_desc(cptr),sizeof(vc->name)); | |
629 | vc->flags = pvr2_ctrl_get_v4lflags(cptr); | |
630 | pvr2_ctrl_get_def(cptr, &val); | |
631 | vc->default_value = val; | |
632 | switch (pvr2_ctrl_get_type(cptr)) { | |
633 | case pvr2_ctl_enum: | |
634 | vc->type = V4L2_CTRL_TYPE_MENU; | |
635 | vc->minimum = 0; | |
636 | vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1; | |
637 | vc->step = 1; | |
638 | break; | |
639 | case pvr2_ctl_bool: | |
640 | vc->type = V4L2_CTRL_TYPE_BOOLEAN; | |
641 | vc->minimum = 0; | |
642 | vc->maximum = 1; | |
643 | vc->step = 1; | |
644 | break; | |
645 | case pvr2_ctl_int: | |
646 | vc->type = V4L2_CTRL_TYPE_INTEGER; | |
647 | vc->minimum = pvr2_ctrl_get_min(cptr); | |
648 | vc->maximum = pvr2_ctrl_get_max(cptr); | |
649 | vc->step = 1; | |
650 | break; | |
651 | default: | |
652 | pvr2_trace(PVR2_TRACE_V4LIOCTL, | |
653 | "QUERYCTRL id=0x%x name=%s not mappable", | |
654 | vc->id,pvr2_ctrl_get_name(cptr)); | |
655 | ret = -EINVAL; | |
656 | break; | |
657 | } | |
658 | break; | |
659 | } | |
660 | ||
661 | case VIDIOC_QUERYMENU: | |
662 | { | |
663 | struct v4l2_querymenu *vm = (struct v4l2_querymenu *)arg; | |
664 | unsigned int cnt = 0; | |
665 | ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw,vm->id), | |
666 | vm->index, | |
667 | vm->name,sizeof(vm->name)-1, | |
668 | &cnt); | |
669 | vm->name[cnt] = 0; | |
670 | break; | |
671 | } | |
672 | ||
673 | case VIDIOC_G_CTRL: | |
674 | { | |
675 | struct v4l2_control *vc = (struct v4l2_control *)arg; | |
676 | int val = 0; | |
677 | ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw,vc->id), | |
678 | &val); | |
679 | vc->value = val; | |
680 | break; | |
681 | } | |
682 | ||
683 | case VIDIOC_S_CTRL: | |
684 | { | |
685 | struct v4l2_control *vc = (struct v4l2_control *)arg; | |
686 | ret = pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw,vc->id), | |
687 | vc->value); | |
688 | break; | |
689 | } | |
690 | ||
691 | case VIDIOC_G_EXT_CTRLS: | |
692 | { | |
693 | struct v4l2_ext_controls *ctls = | |
694 | (struct v4l2_ext_controls *)arg; | |
695 | struct v4l2_ext_control *ctrl; | |
696 | unsigned int idx; | |
697 | int val; | |
698 | ret = 0; | |
699 | for (idx = 0; idx < ctls->count; idx++) { | |
700 | ctrl = ctls->controls + idx; | |
701 | ret = pvr2_ctrl_get_value( | |
702 | pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id),&val); | |
703 | if (ret) { | |
704 | ctls->error_idx = idx; | |
705 | break; | |
706 | } | |
707 | /* Ensure that if read as a 64 bit value, the user | |
708 | will still get a hopefully sane value */ | |
709 | ctrl->value64 = 0; | |
710 | ctrl->value = val; | |
711 | } | |
712 | break; | |
713 | } | |
714 | ||
715 | case VIDIOC_S_EXT_CTRLS: | |
716 | { | |
717 | struct v4l2_ext_controls *ctls = | |
718 | (struct v4l2_ext_controls *)arg; | |
719 | struct v4l2_ext_control *ctrl; | |
720 | unsigned int idx; | |
721 | ret = 0; | |
722 | for (idx = 0; idx < ctls->count; idx++) { | |
723 | ctrl = ctls->controls + idx; | |
724 | ret = pvr2_ctrl_set_value( | |
725 | pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id), | |
726 | ctrl->value); | |
727 | if (ret) { | |
728 | ctls->error_idx = idx; | |
729 | break; | |
730 | } | |
731 | } | |
732 | break; | |
733 | } | |
734 | ||
735 | case VIDIOC_TRY_EXT_CTRLS: | |
736 | { | |
737 | struct v4l2_ext_controls *ctls = | |
738 | (struct v4l2_ext_controls *)arg; | |
739 | struct v4l2_ext_control *ctrl; | |
740 | struct pvr2_ctrl *pctl; | |
741 | unsigned int idx; | |
742 | /* For the moment just validate that the requested control | |
743 | actually exists. */ | |
744 | ret = 0; | |
745 | for (idx = 0; idx < ctls->count; idx++) { | |
746 | ctrl = ctls->controls + idx; | |
747 | pctl = pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id); | |
748 | if (!pctl) { | |
749 | ret = -EINVAL; | |
750 | ctls->error_idx = idx; | |
751 | break; | |
752 | } | |
753 | } | |
754 | break; | |
755 | } | |
756 | ||
757 | case VIDIOC_CROPCAP: | |
758 | { | |
759 | struct v4l2_cropcap *cap = (struct v4l2_cropcap *)arg; | |
760 | if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
761 | ret = -EINVAL; | |
762 | break; | |
763 | } | |
764 | ret = pvr2_hdw_get_cropcap(hdw, cap); | |
765 | cap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; /* paranoia */ | |
766 | break; | |
767 | } | |
768 | case VIDIOC_G_CROP: | |
769 | { | |
770 | struct v4l2_crop *crop = (struct v4l2_crop *)arg; | |
771 | int val = 0; | |
772 | if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
773 | ret = -EINVAL; | |
774 | break; | |
775 | } | |
776 | ret = pvr2_ctrl_get_value( | |
777 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val); | |
778 | if (ret != 0) { | |
779 | ret = -EINVAL; | |
780 | break; | |
781 | } | |
782 | crop->c.left = val; | |
783 | ret = pvr2_ctrl_get_value( | |
784 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val); | |
785 | if (ret != 0) { | |
786 | ret = -EINVAL; | |
787 | break; | |
788 | } | |
789 | crop->c.top = val; | |
790 | ret = pvr2_ctrl_get_value( | |
791 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val); | |
792 | if (ret != 0) { | |
793 | ret = -EINVAL; | |
794 | break; | |
795 | } | |
796 | crop->c.width = val; | |
797 | ret = pvr2_ctrl_get_value( | |
798 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val); | |
799 | if (ret != 0) { | |
800 | ret = -EINVAL; | |
801 | break; | |
802 | } | |
803 | crop->c.height = val; | |
804 | } | |
805 | case VIDIOC_S_CROP: | |
806 | { | |
807 | struct v4l2_crop *crop = (struct v4l2_crop *)arg; | |
808 | struct v4l2_cropcap cap; | |
809 | if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { | |
810 | ret = -EINVAL; | |
811 | break; | |
812 | } | |
813 | cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
814 | ret = pvr2_ctrl_set_value( | |
815 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), | |
816 | crop->c.left); | |
817 | if (ret != 0) { | |
818 | ret = -EINVAL; | |
819 | break; | |
820 | } | |
821 | ret = pvr2_ctrl_set_value( | |
822 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), | |
823 | crop->c.top); | |
824 | if (ret != 0) { | |
825 | ret = -EINVAL; | |
826 | break; | |
827 | } | |
828 | ret = pvr2_ctrl_set_value( | |
829 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), | |
830 | crop->c.width); | |
831 | if (ret != 0) { | |
832 | ret = -EINVAL; | |
833 | break; | |
834 | } | |
835 | ret = pvr2_ctrl_set_value( | |
836 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), | |
837 | crop->c.height); | |
838 | if (ret != 0) { | |
839 | ret = -EINVAL; | |
840 | break; | |
841 | } | |
842 | } | |
843 | case VIDIOC_LOG_STATUS: | |
844 | { | |
845 | pvr2_hdw_trigger_module_log(hdw); | |
846 | ret = 0; | |
847 | break; | |
848 | } | |
849 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
850 | case VIDIOC_DBG_S_REGISTER: | |
851 | case VIDIOC_DBG_G_REGISTER: | |
852 | { | |
853 | u64 val; | |
854 | struct v4l2_register *req = (struct v4l2_register *)arg; | |
855 | if (cmd == VIDIOC_DBG_S_REGISTER) val = req->val; | |
856 | ret = pvr2_hdw_register_access( | |
857 | hdw,req->match_type,req->match_chip,req->reg, | |
858 | cmd == VIDIOC_DBG_S_REGISTER,&val); | |
859 | if (cmd == VIDIOC_DBG_G_REGISTER) req->val = val; | |
860 | break; | |
861 | } | |
862 | #endif | |
863 | ||
864 | default : | |
865 | ret = v4l_compat_translate_ioctl(file, cmd, | |
866 | arg, pvr2_v4l2_do_ioctl); | |
867 | } | |
868 | ||
869 | pvr2_hdw_commit_ctl(hdw); | |
870 | ||
871 | if (ret < 0) { | |
872 | if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { | |
873 | pvr2_trace(PVR2_TRACE_V4LIOCTL, | |
874 | "pvr2_v4l2_do_ioctl failure, ret=%d",ret); | |
875 | } else { | |
876 | if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) { | |
877 | pvr2_trace(PVR2_TRACE_V4LIOCTL, | |
878 | "pvr2_v4l2_do_ioctl failure, ret=%d" | |
879 | " command was:",ret); | |
880 | v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw), | |
881 | cmd); | |
882 | } | |
883 | } | |
884 | } else { | |
885 | pvr2_trace(PVR2_TRACE_V4LIOCTL, | |
886 | "pvr2_v4l2_do_ioctl complete, ret=%d (0x%x)", | |
887 | ret,ret); | |
888 | } | |
889 | return ret; | |
890 | } | |
891 | ||
892 | static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) | |
893 | { | |
894 | int num = dip->devbase.num; | |
895 | struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw; | |
896 | enum pvr2_config cfg = dip->config; | |
897 | int v4l_type = dip->v4l_type; | |
898 | ||
899 | pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1); | |
900 | ||
901 | /* Paranoia */ | |
902 | dip->v4lp = NULL; | |
903 | dip->stream = NULL; | |
904 | ||
905 | /* Actual deallocation happens later when all internal references | |
906 | are gone. */ | |
907 | video_unregister_device(&dip->devbase); | |
908 | ||
909 | printk(KERN_INFO "pvrusb2: unregistered device %s%u [%s]\n", | |
910 | get_v4l_name(v4l_type), num, | |
911 | pvr2_config_get_name(cfg)); | |
912 | ||
913 | } | |
914 | ||
915 | ||
916 | static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp) | |
917 | { | |
918 | if (vp->dev_video) { | |
919 | pvr2_v4l2_dev_destroy(vp->dev_video); | |
920 | vp->dev_video = NULL; | |
921 | } | |
922 | if (vp->dev_radio) { | |
923 | pvr2_v4l2_dev_destroy(vp->dev_radio); | |
924 | vp->dev_radio = NULL; | |
925 | } | |
926 | ||
927 | pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp); | |
928 | pvr2_channel_done(&vp->channel); | |
929 | kfree(vp); | |
930 | } | |
931 | ||
932 | ||
933 | static void pvr2_video_device_release(struct video_device *vdev) | |
934 | { | |
935 | struct pvr2_v4l2_dev *dev; | |
936 | dev = container_of(vdev,struct pvr2_v4l2_dev,devbase); | |
937 | kfree(dev); | |
938 | } | |
939 | ||
940 | ||
941 | static void pvr2_v4l2_internal_check(struct pvr2_channel *chp) | |
942 | { | |
943 | struct pvr2_v4l2 *vp; | |
944 | vp = container_of(chp,struct pvr2_v4l2,channel); | |
945 | if (!vp->channel.mc_head->disconnect_flag) return; | |
946 | if (vp->vfirst) return; | |
947 | pvr2_v4l2_destroy_no_lock(vp); | |
948 | } | |
949 | ||
950 | ||
951 | static int pvr2_v4l2_ioctl(struct file *file, | |
952 | unsigned int cmd, unsigned long arg) | |
953 | { | |
954 | ||
955 | /* Temporary hack : use ivtv api until a v4l2 one is available. */ | |
956 | #define IVTV_IOC_G_CODEC 0xFFEE7703 | |
957 | #define IVTV_IOC_S_CODEC 0xFFEE7704 | |
958 | if (cmd == IVTV_IOC_G_CODEC || cmd == IVTV_IOC_S_CODEC) return 0; | |
959 | return video_usercopy(file, cmd, arg, pvr2_v4l2_do_ioctl); | |
960 | } | |
961 | ||
962 | ||
963 | static int pvr2_v4l2_release(struct file *file) | |
964 | { | |
965 | struct pvr2_v4l2_fh *fhp = file->private_data; | |
966 | struct pvr2_v4l2 *vp = fhp->vhead; | |
967 | struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw; | |
968 | ||
969 | pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release"); | |
970 | ||
971 | if (fhp->rhp) { | |
972 | struct pvr2_stream *sp; | |
973 | pvr2_hdw_set_streaming(hdw,0); | |
974 | sp = pvr2_ioread_get_stream(fhp->rhp); | |
975 | if (sp) pvr2_stream_set_callback(sp,NULL,NULL); | |
976 | pvr2_ioread_destroy(fhp->rhp); | |
977 | fhp->rhp = NULL; | |
978 | } | |
979 | ||
980 | v4l2_prio_close(&vp->prio, &fhp->prio); | |
981 | file->private_data = NULL; | |
982 | ||
983 | if (fhp->vnext) { | |
984 | fhp->vnext->vprev = fhp->vprev; | |
985 | } else { | |
986 | vp->vlast = fhp->vprev; | |
987 | } | |
988 | if (fhp->vprev) { | |
989 | fhp->vprev->vnext = fhp->vnext; | |
990 | } else { | |
991 | vp->vfirst = fhp->vnext; | |
992 | } | |
993 | fhp->vnext = NULL; | |
994 | fhp->vprev = NULL; | |
995 | fhp->vhead = NULL; | |
996 | pvr2_channel_done(&fhp->channel); | |
997 | pvr2_trace(PVR2_TRACE_STRUCT, | |
998 | "Destroying pvr_v4l2_fh id=%p",fhp); | |
999 | if (fhp->input_map) { | |
1000 | kfree(fhp->input_map); | |
1001 | fhp->input_map = NULL; | |
1002 | } | |
1003 | kfree(fhp); | |
1004 | if (vp->channel.mc_head->disconnect_flag && !vp->vfirst) { | |
1005 | pvr2_v4l2_destroy_no_lock(vp); | |
1006 | } | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | ||
1011 | static int pvr2_v4l2_open(struct file *file) | |
1012 | { | |
1013 | struct pvr2_v4l2_dev *dip; /* Our own context pointer */ | |
1014 | struct pvr2_v4l2_fh *fhp; | |
1015 | struct pvr2_v4l2 *vp; | |
1016 | struct pvr2_hdw *hdw; | |
1017 | unsigned int input_mask = 0; | |
1018 | unsigned int input_cnt,idx; | |
1019 | int ret = 0; | |
1020 | ||
1021 | dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase); | |
1022 | ||
1023 | vp = dip->v4lp; | |
1024 | hdw = vp->channel.hdw; | |
1025 | ||
1026 | pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open"); | |
1027 | ||
1028 | if (!pvr2_hdw_dev_ok(hdw)) { | |
1029 | pvr2_trace(PVR2_TRACE_OPEN_CLOSE, | |
1030 | "pvr2_v4l2_open: hardware not ready"); | |
1031 | return -EIO; | |
1032 | } | |
1033 | ||
1034 | fhp = kzalloc(sizeof(*fhp),GFP_KERNEL); | |
1035 | if (!fhp) { | |
1036 | return -ENOMEM; | |
1037 | } | |
1038 | ||
1039 | init_waitqueue_head(&fhp->wait_data); | |
1040 | fhp->dev_info = dip; | |
1041 | ||
1042 | pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp); | |
1043 | pvr2_channel_init(&fhp->channel,vp->channel.mc_head); | |
1044 | ||
1045 | if (dip->v4l_type == VFL_TYPE_RADIO) { | |
1046 | /* Opening device as a radio, legal input selection subset | |
1047 | is just the radio. */ | |
1048 | input_mask = (1 << PVR2_CVAL_INPUT_RADIO); | |
1049 | } else { | |
1050 | /* Opening the main V4L device, legal input selection | |
1051 | subset includes all analog inputs. */ | |
1052 | input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) | | |
1053 | (1 << PVR2_CVAL_INPUT_TV) | | |
1054 | (1 << PVR2_CVAL_INPUT_COMPOSITE) | | |
1055 | (1 << PVR2_CVAL_INPUT_SVIDEO)); | |
1056 | } | |
1057 | ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask); | |
1058 | if (ret) { | |
1059 | pvr2_channel_done(&fhp->channel); | |
1060 | pvr2_trace(PVR2_TRACE_STRUCT, | |
1061 | "Destroying pvr_v4l2_fh id=%p (input mask error)", | |
1062 | fhp); | |
1063 | ||
1064 | kfree(fhp); | |
1065 | return ret; | |
1066 | } | |
1067 | ||
1068 | input_mask &= pvr2_hdw_get_input_available(hdw); | |
1069 | input_cnt = 0; | |
1070 | for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { | |
1071 | if (input_mask & (1 << idx)) input_cnt++; | |
1072 | } | |
1073 | fhp->input_cnt = input_cnt; | |
1074 | fhp->input_map = kzalloc(input_cnt,GFP_KERNEL); | |
1075 | if (!fhp->input_map) { | |
1076 | pvr2_channel_done(&fhp->channel); | |
1077 | pvr2_trace(PVR2_TRACE_STRUCT, | |
1078 | "Destroying pvr_v4l2_fh id=%p (input map failure)", | |
1079 | fhp); | |
1080 | kfree(fhp); | |
1081 | return -ENOMEM; | |
1082 | } | |
1083 | input_cnt = 0; | |
1084 | for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { | |
1085 | if (!(input_mask & (1 << idx))) continue; | |
1086 | fhp->input_map[input_cnt++] = idx; | |
1087 | } | |
1088 | ||
1089 | fhp->vnext = NULL; | |
1090 | fhp->vprev = vp->vlast; | |
1091 | if (vp->vlast) { | |
1092 | vp->vlast->vnext = fhp; | |
1093 | } else { | |
1094 | vp->vfirst = fhp; | |
1095 | } | |
1096 | vp->vlast = fhp; | |
1097 | fhp->vhead = vp; | |
1098 | ||
1099 | fhp->file = file; | |
1100 | file->private_data = fhp; | |
1101 | v4l2_prio_open(&vp->prio,&fhp->prio); | |
1102 | ||
1103 | fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw); | |
1104 | ||
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | ||
1109 | static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp) | |
1110 | { | |
1111 | wake_up(&fhp->wait_data); | |
1112 | } | |
1113 | ||
1114 | static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh) | |
1115 | { | |
1116 | int ret; | |
1117 | struct pvr2_stream *sp; | |
1118 | struct pvr2_hdw *hdw; | |
1119 | if (fh->rhp) return 0; | |
1120 | ||
1121 | if (!fh->dev_info->stream) { | |
1122 | /* No stream defined for this node. This means that we're | |
1123 | not currently allowed to stream from this node. */ | |
1124 | return -EPERM; | |
1125 | } | |
1126 | ||
1127 | /* First read() attempt. Try to claim the stream and start | |
1128 | it... */ | |
1129 | if ((ret = pvr2_channel_claim_stream(&fh->channel, | |
1130 | fh->dev_info->stream)) != 0) { | |
1131 | /* Someone else must already have it */ | |
1132 | return ret; | |
1133 | } | |
1134 | ||
1135 | fh->rhp = pvr2_channel_create_mpeg_stream(fh->dev_info->stream); | |
1136 | if (!fh->rhp) { | |
1137 | pvr2_channel_claim_stream(&fh->channel,NULL); | |
1138 | return -ENOMEM; | |
1139 | } | |
1140 | ||
1141 | hdw = fh->channel.mc_head->hdw; | |
1142 | sp = fh->dev_info->stream->stream; | |
1143 | pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh); | |
1144 | pvr2_hdw_set_stream_type(hdw,fh->dev_info->config); | |
1145 | if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret; | |
1146 | return pvr2_ioread_set_enabled(fh->rhp,!0); | |
1147 | } | |
1148 | ||
1149 | ||
1150 | static ssize_t pvr2_v4l2_read(struct file *file, | |
1151 | char __user *buff, size_t count, loff_t *ppos) | |
1152 | { | |
1153 | struct pvr2_v4l2_fh *fh = file->private_data; | |
1154 | int ret; | |
1155 | ||
1156 | if (fh->fw_mode_flag) { | |
1157 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; | |
1158 | char *tbuf; | |
1159 | int c1,c2; | |
1160 | int tcnt = 0; | |
1161 | unsigned int offs = *ppos; | |
1162 | ||
1163 | tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL); | |
1164 | if (!tbuf) return -ENOMEM; | |
1165 | ||
1166 | while (count) { | |
1167 | c1 = count; | |
1168 | if (c1 > PAGE_SIZE) c1 = PAGE_SIZE; | |
1169 | c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1); | |
1170 | if (c2 < 0) { | |
1171 | tcnt = c2; | |
1172 | break; | |
1173 | } | |
1174 | if (!c2) break; | |
1175 | if (copy_to_user(buff,tbuf,c2)) { | |
1176 | tcnt = -EFAULT; | |
1177 | break; | |
1178 | } | |
1179 | offs += c2; | |
1180 | tcnt += c2; | |
1181 | buff += c2; | |
1182 | count -= c2; | |
1183 | *ppos += c2; | |
1184 | } | |
1185 | kfree(tbuf); | |
1186 | return tcnt; | |
1187 | } | |
1188 | ||
1189 | if (!fh->rhp) { | |
1190 | ret = pvr2_v4l2_iosetup(fh); | |
1191 | if (ret) { | |
1192 | return ret; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | for (;;) { | |
1197 | ret = pvr2_ioread_read(fh->rhp,buff,count); | |
1198 | if (ret >= 0) break; | |
1199 | if (ret != -EAGAIN) break; | |
1200 | if (file->f_flags & O_NONBLOCK) break; | |
1201 | /* Doing blocking I/O. Wait here. */ | |
1202 | ret = wait_event_interruptible( | |
1203 | fh->wait_data, | |
1204 | pvr2_ioread_avail(fh->rhp) >= 0); | |
1205 | if (ret < 0) break; | |
1206 | } | |
1207 | ||
1208 | return ret; | |
1209 | } | |
1210 | ||
1211 | ||
1212 | static unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait) | |
1213 | { | |
1214 | unsigned int mask = 0; | |
1215 | struct pvr2_v4l2_fh *fh = file->private_data; | |
1216 | int ret; | |
1217 | ||
1218 | if (fh->fw_mode_flag) { | |
1219 | mask |= POLLIN | POLLRDNORM; | |
1220 | return mask; | |
1221 | } | |
1222 | ||
1223 | if (!fh->rhp) { | |
1224 | ret = pvr2_v4l2_iosetup(fh); | |
1225 | if (ret) return POLLERR; | |
1226 | } | |
1227 | ||
1228 | poll_wait(file,&fh->wait_data,wait); | |
1229 | ||
1230 | if (pvr2_ioread_avail(fh->rhp) >= 0) { | |
1231 | mask |= POLLIN | POLLRDNORM; | |
1232 | } | |
1233 | ||
1234 | return mask; | |
1235 | } | |
1236 | ||
1237 | ||
1238 | static const struct v4l2_file_operations vdev_fops = { | |
1239 | .owner = THIS_MODULE, | |
1240 | .open = pvr2_v4l2_open, | |
1241 | .release = pvr2_v4l2_release, | |
1242 | .read = pvr2_v4l2_read, | |
1243 | .ioctl = pvr2_v4l2_ioctl, | |
1244 | .poll = pvr2_v4l2_poll, | |
1245 | }; | |
1246 | ||
1247 | ||
1248 | static struct video_device vdev_template = { | |
1249 | .fops = &vdev_fops, | |
1250 | }; | |
1251 | ||
1252 | ||
1253 | static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, | |
1254 | struct pvr2_v4l2 *vp, | |
1255 | int v4l_type) | |
1256 | { | |
1257 | int mindevnum; | |
1258 | int unit_number; | |
1259 | int *nr_ptr = NULL; | |
1260 | dip->v4lp = vp; | |
1261 | ||
1262 | ||
1263 | dip->v4l_type = v4l_type; | |
1264 | switch (v4l_type) { | |
1265 | case VFL_TYPE_GRABBER: | |
1266 | dip->stream = &vp->channel.mc_head->video_stream; | |
1267 | dip->config = pvr2_config_mpeg; | |
1268 | dip->minor_type = pvr2_v4l_type_video; | |
1269 | nr_ptr = video_nr; | |
1270 | if (!dip->stream) { | |
1271 | err("Failed to set up pvrusb2 v4l video dev" | |
1272 | " due to missing stream instance"); | |
1273 | return; | |
1274 | } | |
1275 | break; | |
1276 | case VFL_TYPE_VBI: | |
1277 | dip->config = pvr2_config_vbi; | |
1278 | dip->minor_type = pvr2_v4l_type_vbi; | |
1279 | nr_ptr = vbi_nr; | |
1280 | break; | |
1281 | case VFL_TYPE_RADIO: | |
1282 | dip->stream = &vp->channel.mc_head->video_stream; | |
1283 | dip->config = pvr2_config_mpeg; | |
1284 | dip->minor_type = pvr2_v4l_type_radio; | |
1285 | nr_ptr = radio_nr; | |
1286 | break; | |
1287 | default: | |
1288 | /* Bail out (this should be impossible) */ | |
1289 | err("Failed to set up pvrusb2 v4l dev" | |
1290 | " due to unrecognized config"); | |
1291 | return; | |
1292 | } | |
1293 | ||
1294 | memcpy(&dip->devbase,&vdev_template,sizeof(vdev_template)); | |
1295 | dip->devbase.release = pvr2_video_device_release; | |
1296 | ||
1297 | mindevnum = -1; | |
1298 | unit_number = pvr2_hdw_get_unit_number(vp->channel.mc_head->hdw); | |
1299 | if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) { | |
1300 | mindevnum = nr_ptr[unit_number]; | |
1301 | } | |
1302 | if ((video_register_device(&dip->devbase, | |
1303 | dip->v4l_type, mindevnum) < 0) && | |
1304 | (video_register_device(&dip->devbase, | |
1305 | dip->v4l_type, -1) < 0)) { | |
1306 | err("Failed to register pvrusb2 v4l device"); | |
1307 | } | |
1308 | ||
1309 | printk(KERN_INFO "pvrusb2: registered device %s%u [%s]\n", | |
1310 | get_v4l_name(dip->v4l_type), dip->devbase.num, | |
1311 | pvr2_config_get_name(dip->config)); | |
1312 | ||
1313 | pvr2_hdw_v4l_store_minor_number(vp->channel.mc_head->hdw, | |
1314 | dip->minor_type,dip->devbase.minor); | |
1315 | } | |
1316 | ||
1317 | ||
1318 | struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp) | |
1319 | { | |
1320 | struct pvr2_v4l2 *vp; | |
1321 | ||
1322 | vp = kzalloc(sizeof(*vp),GFP_KERNEL); | |
1323 | if (!vp) return vp; | |
1324 | pvr2_channel_init(&vp->channel,mnp); | |
1325 | pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp); | |
1326 | ||
1327 | vp->channel.check_func = pvr2_v4l2_internal_check; | |
1328 | ||
1329 | /* register streams */ | |
1330 | vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL); | |
1331 | if (!vp->dev_video) goto fail; | |
1332 | pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER); | |
1333 | if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) & | |
1334 | (1 << PVR2_CVAL_INPUT_RADIO)) { | |
1335 | vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL); | |
1336 | if (!vp->dev_radio) goto fail; | |
1337 | pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO); | |
1338 | } | |
1339 | ||
1340 | return vp; | |
1341 | fail: | |
1342 | pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p",vp); | |
1343 | pvr2_v4l2_destroy_no_lock(vp); | |
1344 | return NULL; | |
1345 | } | |
1346 | ||
1347 | /* | |
1348 | Stuff for Emacs to see, in order to encourage consistent editing style: | |
1349 | *** Local Variables: *** | |
1350 | *** mode: c *** | |
1351 | *** fill-column: 75 *** | |
1352 | *** tab-width: 8 *** | |
1353 | *** c-basic-offset: 8 *** | |
1354 | *** End: *** | |
1355 | */ |