1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * |
4 | * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
5 | * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> |
6 | */ |
7 | |
8 | #include <linux/kernel.h> |
9 | #include <linux/slab.h> |
10 | #include "pvrusb2-context.h" |
11 | #include "pvrusb2-hdw.h" |
12 | #include "pvrusb2.h" |
13 | #include "pvrusb2-debug.h" |
14 | #include "pvrusb2-v4l2.h" |
15 | #include "pvrusb2-ioread.h" |
16 | #include <linux/videodev2.h> |
17 | #include <linux/module.h> |
18 | #include <media/v4l2-dev.h> |
19 | #include <media/v4l2-device.h> |
20 | #include <media/v4l2-fh.h> |
21 | #include <media/v4l2-common.h> |
22 | #include <media/v4l2-ioctl.h> |
23 | |
24 | struct pvr2_v4l2_dev; |
25 | struct pvr2_v4l2_fh; |
26 | struct pvr2_v4l2; |
27 | |
28 | struct pvr2_v4l2_dev { |
29 | struct video_device devbase; /* MUST be first! */ |
30 | struct pvr2_v4l2 *v4lp; |
31 | struct pvr2_context_stream *stream; |
32 | /* Information about this device: */ |
33 | enum pvr2_config config; /* Expected stream format */ |
34 | int v4l_type; /* V4L defined type for this device node */ |
35 | enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */ |
36 | }; |
37 | |
38 | struct pvr2_v4l2_fh { |
39 | struct v4l2_fh fh; |
40 | struct pvr2_channel channel; |
41 | struct pvr2_v4l2_dev *pdi; |
42 | struct pvr2_ioread *rhp; |
43 | struct file *file; |
44 | wait_queue_head_t wait_data; |
45 | int fw_mode_flag; |
46 | /* Map contiguous ordinal value to input id */ |
47 | unsigned char *input_map; |
48 | unsigned int input_cnt; |
49 | }; |
50 | |
51 | struct pvr2_v4l2 { |
52 | struct pvr2_channel channel; |
53 | |
54 | /* streams - Note that these must be separately, individually, |
55 | * allocated pointers. This is because the v4l core is going to |
56 | * manage their deletion - separately, individually... */ |
57 | struct pvr2_v4l2_dev *dev_video; |
58 | struct pvr2_v4l2_dev *dev_radio; |
59 | }; |
60 | |
61 | static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; |
62 | module_param_array(video_nr, int, NULL, 0444); |
63 | MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor" ); |
64 | static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; |
65 | module_param_array(radio_nr, int, NULL, 0444); |
66 | MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor" ); |
67 | static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1}; |
68 | module_param_array(vbi_nr, int, NULL, 0444); |
69 | MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor" ); |
70 | |
71 | #define PVR_FORMAT_PIX 0 |
72 | #define PVR_FORMAT_VBI 1 |
73 | |
74 | static struct v4l2_format pvr_format [] = { |
75 | [PVR_FORMAT_PIX] = { |
76 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, |
77 | .fmt = { |
78 | .pix = { |
79 | .width = 720, |
80 | .height = 576, |
81 | .pixelformat = V4L2_PIX_FMT_MPEG, |
82 | .field = V4L2_FIELD_INTERLACED, |
83 | /* FIXME : Don't know what to put here... */ |
84 | .sizeimage = 32 * 1024, |
85 | } |
86 | } |
87 | }, |
88 | [PVR_FORMAT_VBI] = { |
89 | .type = V4L2_BUF_TYPE_VBI_CAPTURE, |
90 | .fmt = { |
91 | .vbi = { |
92 | .sampling_rate = 27000000, |
93 | .offset = 248, |
94 | .samples_per_line = 1443, |
95 | .sample_format = V4L2_PIX_FMT_GREY, |
96 | .start = { 0, 0 }, |
97 | .count = { 0, 0 }, |
98 | .flags = 0, |
99 | } |
100 | } |
101 | } |
102 | }; |
103 | |
104 | |
105 | |
106 | /* |
107 | * This is part of Video 4 Linux API. These procedures handle ioctl() calls. |
108 | */ |
109 | static int pvr2_querycap(struct file *file, void *priv, struct v4l2_capability *cap) |
110 | { |
111 | struct pvr2_v4l2_fh *fh = file->private_data; |
112 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
113 | |
114 | strscpy(cap->driver, "pvrusb2" , sizeof(cap->driver)); |
115 | strscpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw), |
116 | sizeof(cap->bus_info)); |
117 | strscpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card)); |
118 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | |
119 | V4L2_CAP_AUDIO | V4L2_CAP_RADIO | |
120 | V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS; |
121 | return 0; |
122 | } |
123 | |
124 | static int pvr2_g_std(struct file *file, void *priv, v4l2_std_id *std) |
125 | { |
126 | struct pvr2_v4l2_fh *fh = file->private_data; |
127 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
128 | int val = 0; |
129 | int ret; |
130 | |
131 | ret = pvr2_ctrl_get_value( |
132 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), valptr: &val); |
133 | *std = val; |
134 | return ret; |
135 | } |
136 | |
137 | static int pvr2_s_std(struct file *file, void *priv, v4l2_std_id std) |
138 | { |
139 | struct pvr2_v4l2_fh *fh = file->private_data; |
140 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
141 | int ret; |
142 | |
143 | ret = pvr2_ctrl_set_value( |
144 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), val: std); |
145 | pvr2_hdw_commit_ctl(hdw); |
146 | return ret; |
147 | } |
148 | |
149 | static int pvr2_querystd(struct file *file, void *priv, v4l2_std_id *std) |
150 | { |
151 | struct pvr2_v4l2_fh *fh = file->private_data; |
152 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
153 | int val = 0; |
154 | int ret; |
155 | |
156 | ret = pvr2_ctrl_get_value( |
157 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDDETECT), valptr: &val); |
158 | *std = val; |
159 | return ret; |
160 | } |
161 | |
162 | static int pvr2_enum_input(struct file *file, void *priv, struct v4l2_input *vi) |
163 | { |
164 | struct pvr2_v4l2_fh *fh = file->private_data; |
165 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
166 | struct pvr2_ctrl *cptr; |
167 | struct v4l2_input tmp; |
168 | unsigned int cnt; |
169 | int val; |
170 | |
171 | cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
172 | |
173 | memset(&tmp, 0, sizeof(tmp)); |
174 | tmp.index = vi->index; |
175 | if (vi->index >= fh->input_cnt) |
176 | return -EINVAL; |
177 | val = fh->input_map[vi->index]; |
178 | switch (val) { |
179 | case PVR2_CVAL_INPUT_TV: |
180 | case PVR2_CVAL_INPUT_DTV: |
181 | case PVR2_CVAL_INPUT_RADIO: |
182 | tmp.type = V4L2_INPUT_TYPE_TUNER; |
183 | break; |
184 | case PVR2_CVAL_INPUT_SVIDEO: |
185 | case PVR2_CVAL_INPUT_COMPOSITE: |
186 | tmp.type = V4L2_INPUT_TYPE_CAMERA; |
187 | break; |
188 | default: |
189 | return -EINVAL; |
190 | } |
191 | |
192 | cnt = 0; |
193 | pvr2_ctrl_get_valname(cptr, val, |
194 | tmp.name, sizeof(tmp.name) - 1, &cnt); |
195 | tmp.name[cnt] = 0; |
196 | |
197 | /* Don't bother with audioset, since this driver currently |
198 | always switches the audio whenever the video is |
199 | switched. */ |
200 | |
201 | /* Handling std is a tougher problem. It doesn't make |
202 | sense in cases where a device might be multi-standard. |
203 | We could just copy out the current value for the |
204 | standard, but it can change over time. For now just |
205 | leave it zero. */ |
206 | *vi = tmp; |
207 | return 0; |
208 | } |
209 | |
210 | static int pvr2_g_input(struct file *file, void *priv, unsigned int *i) |
211 | { |
212 | struct pvr2_v4l2_fh *fh = file->private_data; |
213 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
214 | unsigned int idx; |
215 | struct pvr2_ctrl *cptr; |
216 | int val; |
217 | int ret; |
218 | |
219 | cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
220 | val = 0; |
221 | ret = pvr2_ctrl_get_value(cptr, valptr: &val); |
222 | *i = 0; |
223 | for (idx = 0; idx < fh->input_cnt; idx++) { |
224 | if (fh->input_map[idx] == val) { |
225 | *i = idx; |
226 | break; |
227 | } |
228 | } |
229 | return ret; |
230 | } |
231 | |
232 | static int pvr2_s_input(struct file *file, void *priv, unsigned int inp) |
233 | { |
234 | struct pvr2_v4l2_fh *fh = file->private_data; |
235 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
236 | int ret; |
237 | |
238 | if (inp >= fh->input_cnt) |
239 | return -EINVAL; |
240 | ret = pvr2_ctrl_set_value( |
241 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT), |
242 | val: fh->input_map[inp]); |
243 | pvr2_hdw_commit_ctl(hdw); |
244 | return ret; |
245 | } |
246 | |
247 | static int pvr2_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin) |
248 | { |
249 | /* pkt: FIXME: We are returning one "fake" input here |
250 | which could very well be called "whatever_we_like". |
251 | This is for apps that want to see an audio input |
252 | just to feel comfortable, as well as to test if |
253 | it can do stereo or sth. There is actually no guarantee |
254 | that the actual audio input cannot change behind the app's |
255 | back, but most applications should not mind that either. |
256 | |
257 | Hopefully, mplayer people will work with us on this (this |
258 | whole mess is to support mplayer pvr://), or Hans will come |
259 | up with a more standard way to say "we have inputs but we |
260 | don 't want you to change them independent of video" which |
261 | will sort this mess. |
262 | */ |
263 | |
264 | if (vin->index > 0) |
265 | return -EINVAL; |
266 | strscpy(vin->name, "PVRUSB2 Audio" , sizeof(vin->name)); |
267 | vin->capability = V4L2_AUDCAP_STEREO; |
268 | return 0; |
269 | } |
270 | |
271 | static int pvr2_g_audio(struct file *file, void *priv, struct v4l2_audio *vin) |
272 | { |
273 | /* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */ |
274 | vin->index = 0; |
275 | strscpy(vin->name, "PVRUSB2 Audio" , sizeof(vin->name)); |
276 | vin->capability = V4L2_AUDCAP_STEREO; |
277 | return 0; |
278 | } |
279 | |
280 | static int pvr2_s_audio(struct file *file, void *priv, const struct v4l2_audio *vout) |
281 | { |
282 | if (vout->index) |
283 | return -EINVAL; |
284 | return 0; |
285 | } |
286 | |
287 | static int pvr2_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt) |
288 | { |
289 | struct pvr2_v4l2_fh *fh = file->private_data; |
290 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
291 | |
292 | if (vt->index != 0) |
293 | return -EINVAL; /* Only answer for the 1st tuner */ |
294 | |
295 | pvr2_hdw_execute_tuner_poll(hdw); |
296 | return pvr2_hdw_get_tuner_status(hdw, vt); |
297 | } |
298 | |
299 | static int pvr2_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt) |
300 | { |
301 | struct pvr2_v4l2_fh *fh = file->private_data; |
302 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
303 | int ret; |
304 | |
305 | if (vt->index != 0) |
306 | return -EINVAL; |
307 | |
308 | ret = pvr2_ctrl_set_value( |
309 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_AUDIOMODE), |
310 | val: vt->audmode); |
311 | pvr2_hdw_commit_ctl(hdw); |
312 | return ret; |
313 | } |
314 | |
315 | static int pvr2_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf) |
316 | { |
317 | struct pvr2_v4l2_fh *fh = file->private_data; |
318 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
319 | unsigned long fv; |
320 | struct v4l2_tuner vt; |
321 | int cur_input; |
322 | struct pvr2_ctrl *ctrlp; |
323 | int ret; |
324 | |
325 | ret = pvr2_hdw_get_tuner_status(hdw, &vt); |
326 | if (ret != 0) |
327 | return ret; |
328 | ctrlp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT); |
329 | ret = pvr2_ctrl_get_value(ctrlp, valptr: &cur_input); |
330 | if (ret != 0) |
331 | return ret; |
332 | if (vf->type == V4L2_TUNER_RADIO) { |
333 | if (cur_input != PVR2_CVAL_INPUT_RADIO) |
334 | pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_RADIO); |
335 | } else { |
336 | if (cur_input == PVR2_CVAL_INPUT_RADIO) |
337 | pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_TV); |
338 | } |
339 | fv = vf->frequency; |
340 | if (vt.capability & V4L2_TUNER_CAP_LOW) |
341 | fv = (fv * 125) / 2; |
342 | else |
343 | fv = fv * 62500; |
344 | ret = pvr2_ctrl_set_value( |
345 | pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),val: fv); |
346 | pvr2_hdw_commit_ctl(hdw); |
347 | return ret; |
348 | } |
349 | |
350 | static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf) |
351 | { |
352 | struct pvr2_v4l2_fh *fh = file->private_data; |
353 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
354 | int val = 0; |
355 | int cur_input; |
356 | struct v4l2_tuner vt; |
357 | int ret; |
358 | |
359 | ret = pvr2_hdw_get_tuner_status(hdw, &vt); |
360 | if (ret != 0) |
361 | return ret; |
362 | ret = pvr2_ctrl_get_value( |
363 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_FREQUENCY), |
364 | valptr: &val); |
365 | if (ret != 0) |
366 | return ret; |
367 | pvr2_ctrl_get_value( |
368 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT), |
369 | valptr: &cur_input); |
370 | if (cur_input == PVR2_CVAL_INPUT_RADIO) |
371 | vf->type = V4L2_TUNER_RADIO; |
372 | else |
373 | vf->type = V4L2_TUNER_ANALOG_TV; |
374 | if (vt.capability & V4L2_TUNER_CAP_LOW) |
375 | val = (val * 2) / 125; |
376 | else |
377 | val /= 62500; |
378 | vf->frequency = val; |
379 | return 0; |
380 | } |
381 | |
382 | static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd) |
383 | { |
384 | /* Only one format is supported: MPEG. */ |
385 | if (fd->index) |
386 | return -EINVAL; |
387 | |
388 | fd->pixelformat = V4L2_PIX_FMT_MPEG; |
389 | return 0; |
390 | } |
391 | |
392 | static int pvr2_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) |
393 | { |
394 | struct pvr2_v4l2_fh *fh = file->private_data; |
395 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
396 | int val; |
397 | |
398 | memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format)); |
399 | val = 0; |
400 | pvr2_ctrl_get_value( |
401 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES), |
402 | valptr: &val); |
403 | vf->fmt.pix.width = val; |
404 | val = 0; |
405 | pvr2_ctrl_get_value( |
406 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES), |
407 | valptr: &val); |
408 | vf->fmt.pix.height = val; |
409 | return 0; |
410 | } |
411 | |
412 | static int pvr2_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) |
413 | { |
414 | struct pvr2_v4l2_fh *fh = file->private_data; |
415 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
416 | int lmin, lmax, ldef; |
417 | struct pvr2_ctrl *hcp, *vcp; |
418 | int h = vf->fmt.pix.height; |
419 | int w = vf->fmt.pix.width; |
420 | |
421 | hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); |
422 | vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); |
423 | |
424 | lmin = pvr2_ctrl_get_min(hcp); |
425 | lmax = pvr2_ctrl_get_max(hcp); |
426 | pvr2_ctrl_get_def(hcp, valptr: &ldef); |
427 | if (w == -1) |
428 | w = ldef; |
429 | else if (w < lmin) |
430 | w = lmin; |
431 | else if (w > lmax) |
432 | w = lmax; |
433 | lmin = pvr2_ctrl_get_min(vcp); |
434 | lmax = pvr2_ctrl_get_max(vcp); |
435 | pvr2_ctrl_get_def(vcp, valptr: &ldef); |
436 | if (h == -1) |
437 | h = ldef; |
438 | else if (h < lmin) |
439 | h = lmin; |
440 | else if (h > lmax) |
441 | h = lmax; |
442 | |
443 | memcpy(vf, &pvr_format[PVR_FORMAT_PIX], |
444 | sizeof(struct v4l2_format)); |
445 | vf->fmt.pix.width = w; |
446 | vf->fmt.pix.height = h; |
447 | return 0; |
448 | } |
449 | |
450 | static int pvr2_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) |
451 | { |
452 | struct pvr2_v4l2_fh *fh = file->private_data; |
453 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
454 | struct pvr2_ctrl *hcp, *vcp; |
455 | int ret = pvr2_try_fmt_vid_cap(file, priv: fh, vf); |
456 | |
457 | if (ret) |
458 | return ret; |
459 | hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES); |
460 | vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES); |
461 | pvr2_ctrl_set_value(hcp, val: vf->fmt.pix.width); |
462 | pvr2_ctrl_set_value(vcp, val: vf->fmt.pix.height); |
463 | pvr2_hdw_commit_ctl(hdw); |
464 | return 0; |
465 | } |
466 | |
467 | static int pvr2_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
468 | { |
469 | struct pvr2_v4l2_fh *fh = file->private_data; |
470 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
471 | struct pvr2_v4l2_dev *pdi = fh->pdi; |
472 | int ret; |
473 | |
474 | if (!fh->pdi->stream) { |
475 | /* No stream defined for this node. This means |
476 | that we're not currently allowed to stream from |
477 | this node. */ |
478 | return -EPERM; |
479 | } |
480 | ret = pvr2_hdw_set_stream_type(hdw, pdi->config); |
481 | if (ret < 0) |
482 | return ret; |
483 | return pvr2_hdw_set_streaming(hdw, !0); |
484 | } |
485 | |
486 | static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
487 | { |
488 | struct pvr2_v4l2_fh *fh = file->private_data; |
489 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
490 | |
491 | if (!fh->pdi->stream) { |
492 | /* No stream defined for this node. This means |
493 | that we're not currently allowed to stream from |
494 | this node. */ |
495 | return -EPERM; |
496 | } |
497 | return pvr2_hdw_set_streaming(hdw, 0); |
498 | } |
499 | |
500 | static int pvr2_queryctrl(struct file *file, void *priv, |
501 | struct v4l2_queryctrl *vc) |
502 | { |
503 | struct pvr2_v4l2_fh *fh = file->private_data; |
504 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
505 | struct pvr2_ctrl *cptr; |
506 | int val; |
507 | |
508 | if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) { |
509 | cptr = pvr2_hdw_get_ctrl_nextv4l( |
510 | hdw, ctl_id: (vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL)); |
511 | if (cptr) |
512 | vc->id = pvr2_ctrl_get_v4lid(cptr); |
513 | } else { |
514 | cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: vc->id); |
515 | } |
516 | if (!cptr) { |
517 | pvr2_trace(PVR2_TRACE_V4LIOCTL, |
518 | "QUERYCTRL id=0x%x not implemented here" , |
519 | vc->id); |
520 | return -EINVAL; |
521 | } |
522 | |
523 | pvr2_trace(PVR2_TRACE_V4LIOCTL, |
524 | "QUERYCTRL id=0x%x mapping name=%s (%s)" , |
525 | vc->id, pvr2_ctrl_get_name(cptr), |
526 | pvr2_ctrl_get_desc(cptr)); |
527 | strscpy(vc->name, pvr2_ctrl_get_desc(cptr), sizeof(vc->name)); |
528 | vc->flags = pvr2_ctrl_get_v4lflags(cptr); |
529 | pvr2_ctrl_get_def(cptr, valptr: &val); |
530 | vc->default_value = val; |
531 | switch (pvr2_ctrl_get_type(cptr)) { |
532 | case pvr2_ctl_enum: |
533 | vc->type = V4L2_CTRL_TYPE_MENU; |
534 | vc->minimum = 0; |
535 | vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1; |
536 | vc->step = 1; |
537 | break; |
538 | case pvr2_ctl_bool: |
539 | vc->type = V4L2_CTRL_TYPE_BOOLEAN; |
540 | vc->minimum = 0; |
541 | vc->maximum = 1; |
542 | vc->step = 1; |
543 | break; |
544 | case pvr2_ctl_int: |
545 | vc->type = V4L2_CTRL_TYPE_INTEGER; |
546 | vc->minimum = pvr2_ctrl_get_min(cptr); |
547 | vc->maximum = pvr2_ctrl_get_max(cptr); |
548 | vc->step = 1; |
549 | break; |
550 | default: |
551 | pvr2_trace(PVR2_TRACE_V4LIOCTL, |
552 | "QUERYCTRL id=0x%x name=%s not mappable" , |
553 | vc->id, pvr2_ctrl_get_name(cptr)); |
554 | return -EINVAL; |
555 | } |
556 | return 0; |
557 | } |
558 | |
559 | static int (struct file *file, void *priv, struct v4l2_querymenu *vm) |
560 | { |
561 | struct pvr2_v4l2_fh *fh = file->private_data; |
562 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
563 | unsigned int cnt = 0; |
564 | int ret; |
565 | |
566 | ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: vm->id), |
567 | vm->index, |
568 | vm->name, sizeof(vm->name) - 1, |
569 | &cnt); |
570 | vm->name[cnt] = 0; |
571 | return ret; |
572 | } |
573 | |
574 | static int pvr2_g_ctrl(struct file *file, void *priv, struct v4l2_control *vc) |
575 | { |
576 | struct pvr2_v4l2_fh *fh = file->private_data; |
577 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
578 | int val = 0; |
579 | int ret; |
580 | |
581 | ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: vc->id), |
582 | valptr: &val); |
583 | vc->value = val; |
584 | return ret; |
585 | } |
586 | |
587 | static int pvr2_s_ctrl(struct file *file, void *priv, struct v4l2_control *vc) |
588 | { |
589 | struct pvr2_v4l2_fh *fh = file->private_data; |
590 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
591 | int ret; |
592 | |
593 | ret = pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: vc->id), |
594 | val: vc->value); |
595 | pvr2_hdw_commit_ctl(hdw); |
596 | return ret; |
597 | } |
598 | |
599 | static int pvr2_g_ext_ctrls(struct file *file, void *priv, |
600 | struct v4l2_ext_controls *ctls) |
601 | { |
602 | struct pvr2_v4l2_fh *fh = file->private_data; |
603 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
604 | struct v4l2_ext_control *ctrl; |
605 | struct pvr2_ctrl *cptr; |
606 | unsigned int idx; |
607 | int val; |
608 | int ret; |
609 | |
610 | ret = 0; |
611 | for (idx = 0; idx < ctls->count; idx++) { |
612 | ctrl = ctls->controls + idx; |
613 | cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: ctrl->id); |
614 | if (cptr) { |
615 | if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL) |
616 | pvr2_ctrl_get_def(cptr, valptr: &val); |
617 | else |
618 | ret = pvr2_ctrl_get_value(cptr, valptr: &val); |
619 | } else |
620 | ret = -EINVAL; |
621 | |
622 | if (ret) { |
623 | ctls->error_idx = idx; |
624 | return ret; |
625 | } |
626 | /* Ensure that if read as a 64 bit value, the user |
627 | will still get a hopefully sane value */ |
628 | ctrl->value64 = 0; |
629 | ctrl->value = val; |
630 | } |
631 | return 0; |
632 | } |
633 | |
634 | static int pvr2_s_ext_ctrls(struct file *file, void *priv, |
635 | struct v4l2_ext_controls *ctls) |
636 | { |
637 | struct pvr2_v4l2_fh *fh = file->private_data; |
638 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
639 | struct v4l2_ext_control *ctrl; |
640 | unsigned int idx; |
641 | int ret; |
642 | |
643 | ret = 0; |
644 | for (idx = 0; idx < ctls->count; idx++) { |
645 | ctrl = ctls->controls + idx; |
646 | ret = pvr2_ctrl_set_value( |
647 | pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: ctrl->id), |
648 | val: ctrl->value); |
649 | if (ret) { |
650 | ctls->error_idx = idx; |
651 | goto commit; |
652 | } |
653 | } |
654 | commit: |
655 | pvr2_hdw_commit_ctl(hdw); |
656 | return ret; |
657 | } |
658 | |
659 | static int pvr2_try_ext_ctrls(struct file *file, void *priv, |
660 | struct v4l2_ext_controls *ctls) |
661 | { |
662 | struct pvr2_v4l2_fh *fh = file->private_data; |
663 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
664 | struct v4l2_ext_control *ctrl; |
665 | struct pvr2_ctrl *pctl; |
666 | unsigned int idx; |
667 | |
668 | /* For the moment just validate that the requested control |
669 | actually exists. */ |
670 | for (idx = 0; idx < ctls->count; idx++) { |
671 | ctrl = ctls->controls + idx; |
672 | pctl = pvr2_hdw_get_ctrl_v4l(hdw, ctl_id: ctrl->id); |
673 | if (!pctl) { |
674 | ctls->error_idx = idx; |
675 | return -EINVAL; |
676 | } |
677 | } |
678 | return 0; |
679 | } |
680 | |
681 | static int pvr2_g_pixelaspect(struct file *file, void *priv, |
682 | int type, struct v4l2_fract *f) |
683 | { |
684 | struct pvr2_v4l2_fh *fh = file->private_data; |
685 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
686 | struct v4l2_cropcap cap = { .type = type }; |
687 | int ret; |
688 | |
689 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
690 | return -EINVAL; |
691 | ret = pvr2_hdw_get_cropcap(hdw, &cap); |
692 | if (!ret) |
693 | *f = cap.pixelaspect; |
694 | return ret; |
695 | } |
696 | |
697 | static int pvr2_g_selection(struct file *file, void *priv, |
698 | struct v4l2_selection *sel) |
699 | { |
700 | struct pvr2_v4l2_fh *fh = file->private_data; |
701 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
702 | struct v4l2_cropcap cap; |
703 | int val = 0; |
704 | int ret; |
705 | |
706 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
707 | return -EINVAL; |
708 | |
709 | cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
710 | |
711 | switch (sel->target) { |
712 | case V4L2_SEL_TGT_CROP: |
713 | ret = pvr2_ctrl_get_value( |
714 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), valptr: &val); |
715 | if (ret != 0) |
716 | return -EINVAL; |
717 | sel->r.left = val; |
718 | ret = pvr2_ctrl_get_value( |
719 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), valptr: &val); |
720 | if (ret != 0) |
721 | return -EINVAL; |
722 | sel->r.top = val; |
723 | ret = pvr2_ctrl_get_value( |
724 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), valptr: &val); |
725 | if (ret != 0) |
726 | return -EINVAL; |
727 | sel->r.width = val; |
728 | ret = pvr2_ctrl_get_value( |
729 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), valptr: &val); |
730 | if (ret != 0) |
731 | return -EINVAL; |
732 | sel->r.height = val; |
733 | break; |
734 | case V4L2_SEL_TGT_CROP_DEFAULT: |
735 | ret = pvr2_hdw_get_cropcap(hdw, &cap); |
736 | sel->r = cap.defrect; |
737 | break; |
738 | case V4L2_SEL_TGT_CROP_BOUNDS: |
739 | ret = pvr2_hdw_get_cropcap(hdw, &cap); |
740 | sel->r = cap.bounds; |
741 | break; |
742 | default: |
743 | return -EINVAL; |
744 | } |
745 | return ret; |
746 | } |
747 | |
748 | static int pvr2_s_selection(struct file *file, void *priv, |
749 | struct v4l2_selection *sel) |
750 | { |
751 | struct pvr2_v4l2_fh *fh = file->private_data; |
752 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
753 | int ret; |
754 | |
755 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
756 | sel->target != V4L2_SEL_TGT_CROP) |
757 | return -EINVAL; |
758 | ret = pvr2_ctrl_set_value( |
759 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), |
760 | val: sel->r.left); |
761 | if (ret != 0) |
762 | goto commit; |
763 | ret = pvr2_ctrl_set_value( |
764 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), |
765 | val: sel->r.top); |
766 | if (ret != 0) |
767 | goto commit; |
768 | ret = pvr2_ctrl_set_value( |
769 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), |
770 | val: sel->r.width); |
771 | if (ret != 0) |
772 | goto commit; |
773 | ret = pvr2_ctrl_set_value( |
774 | pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), |
775 | val: sel->r.height); |
776 | commit: |
777 | pvr2_hdw_commit_ctl(hdw); |
778 | return ret; |
779 | } |
780 | |
781 | static int pvr2_log_status(struct file *file, void *priv) |
782 | { |
783 | struct pvr2_v4l2_fh *fh = file->private_data; |
784 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
785 | |
786 | pvr2_hdw_trigger_module_log(hdw); |
787 | return 0; |
788 | } |
789 | |
790 | static const struct v4l2_ioctl_ops pvr2_ioctl_ops = { |
791 | .vidioc_querycap = pvr2_querycap, |
792 | .vidioc_s_audio = pvr2_s_audio, |
793 | .vidioc_g_audio = pvr2_g_audio, |
794 | .vidioc_enumaudio = pvr2_enumaudio, |
795 | .vidioc_enum_input = pvr2_enum_input, |
796 | .vidioc_g_pixelaspect = pvr2_g_pixelaspect, |
797 | .vidioc_s_selection = pvr2_s_selection, |
798 | .vidioc_g_selection = pvr2_g_selection, |
799 | .vidioc_g_input = pvr2_g_input, |
800 | .vidioc_s_input = pvr2_s_input, |
801 | .vidioc_g_frequency = pvr2_g_frequency, |
802 | .vidioc_s_frequency = pvr2_s_frequency, |
803 | .vidioc_s_tuner = pvr2_s_tuner, |
804 | .vidioc_g_tuner = pvr2_g_tuner, |
805 | .vidioc_g_std = pvr2_g_std, |
806 | .vidioc_s_std = pvr2_s_std, |
807 | .vidioc_querystd = pvr2_querystd, |
808 | .vidioc_log_status = pvr2_log_status, |
809 | .vidioc_enum_fmt_vid_cap = pvr2_enum_fmt_vid_cap, |
810 | .vidioc_g_fmt_vid_cap = pvr2_g_fmt_vid_cap, |
811 | .vidioc_s_fmt_vid_cap = pvr2_s_fmt_vid_cap, |
812 | .vidioc_try_fmt_vid_cap = pvr2_try_fmt_vid_cap, |
813 | .vidioc_streamon = pvr2_streamon, |
814 | .vidioc_streamoff = pvr2_streamoff, |
815 | .vidioc_queryctrl = pvr2_queryctrl, |
816 | .vidioc_querymenu = pvr2_querymenu, |
817 | .vidioc_g_ctrl = pvr2_g_ctrl, |
818 | .vidioc_s_ctrl = pvr2_s_ctrl, |
819 | .vidioc_g_ext_ctrls = pvr2_g_ext_ctrls, |
820 | .vidioc_s_ext_ctrls = pvr2_s_ext_ctrls, |
821 | .vidioc_try_ext_ctrls = pvr2_try_ext_ctrls, |
822 | }; |
823 | |
824 | static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip) |
825 | { |
826 | struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw; |
827 | enum pvr2_config cfg = dip->config; |
828 | char msg[80]; |
829 | unsigned int mcnt; |
830 | |
831 | /* Construct the unregistration message *before* we actually |
832 | perform the unregistration step. By doing it this way we don't |
833 | have to worry about potentially touching deleted resources. */ |
834 | mcnt = scnprintf(buf: msg, size: sizeof(msg) - 1, |
835 | fmt: "pvrusb2: unregistered device %s [%s]" , |
836 | video_device_node_name(vdev: &dip->devbase), |
837 | pvr2_config_get_name(cfg)); |
838 | msg[mcnt] = 0; |
839 | |
840 | pvr2_hdw_v4l_store_minor_number(hdw,index: dip->minor_type,-1); |
841 | |
842 | /* Paranoia */ |
843 | dip->v4lp = NULL; |
844 | dip->stream = NULL; |
845 | |
846 | /* Actual deallocation happens later when all internal references |
847 | are gone. */ |
848 | video_unregister_device(vdev: &dip->devbase); |
849 | |
850 | pr_info("%s\n" , msg); |
851 | |
852 | } |
853 | |
854 | |
855 | static void pvr2_v4l2_dev_disassociate_parent(struct pvr2_v4l2_dev *dip) |
856 | { |
857 | if (!dip) return; |
858 | if (!dip->devbase.v4l2_dev->dev) return; |
859 | dip->devbase.v4l2_dev->dev = NULL; |
860 | device_move(dev: &dip->devbase.dev, NULL, dpm_order: DPM_ORDER_NONE); |
861 | } |
862 | |
863 | |
864 | static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp) |
865 | { |
866 | if (vp->dev_video) { |
867 | pvr2_v4l2_dev_destroy(dip: vp->dev_video); |
868 | vp->dev_video = NULL; |
869 | } |
870 | if (vp->dev_radio) { |
871 | pvr2_v4l2_dev_destroy(dip: vp->dev_radio); |
872 | vp->dev_radio = NULL; |
873 | } |
874 | |
875 | pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p" ,vp); |
876 | pvr2_channel_done(&vp->channel); |
877 | kfree(objp: vp); |
878 | } |
879 | |
880 | |
881 | static void pvr2_video_device_release(struct video_device *vdev) |
882 | { |
883 | struct pvr2_v4l2_dev *dev; |
884 | dev = container_of(vdev,struct pvr2_v4l2_dev,devbase); |
885 | kfree(objp: dev); |
886 | } |
887 | |
888 | |
889 | static void pvr2_v4l2_internal_check(struct pvr2_channel *chp) |
890 | { |
891 | struct pvr2_v4l2 *vp; |
892 | vp = container_of(chp,struct pvr2_v4l2,channel); |
893 | if (!vp->channel.mc_head->disconnect_flag) return; |
894 | pvr2_v4l2_dev_disassociate_parent(dip: vp->dev_video); |
895 | pvr2_v4l2_dev_disassociate_parent(dip: vp->dev_radio); |
896 | if (!list_empty(head: &vp->dev_video->devbase.fh_list) || |
897 | (vp->dev_radio && |
898 | !list_empty(head: &vp->dev_radio->devbase.fh_list))) { |
899 | pvr2_trace(PVR2_TRACE_STRUCT, |
900 | "pvr2_v4l2 internal_check exit-empty id=%p" , vp); |
901 | return; |
902 | } |
903 | pvr2_v4l2_destroy_no_lock(vp); |
904 | } |
905 | |
906 | |
907 | static int pvr2_v4l2_release(struct file *file) |
908 | { |
909 | struct pvr2_v4l2_fh *fhp = file->private_data; |
910 | struct pvr2_v4l2 *vp = fhp->pdi->v4lp; |
911 | struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw; |
912 | |
913 | pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release" ); |
914 | |
915 | if (fhp->rhp) { |
916 | struct pvr2_stream *sp; |
917 | pvr2_hdw_set_streaming(hdw,0); |
918 | sp = pvr2_ioread_get_stream(fhp->rhp); |
919 | if (sp) pvr2_stream_set_callback(sp,NULL,NULL); |
920 | pvr2_ioread_destroy(fhp->rhp); |
921 | fhp->rhp = NULL; |
922 | } |
923 | |
924 | v4l2_fh_del(fh: &fhp->fh); |
925 | v4l2_fh_exit(fh: &fhp->fh); |
926 | file->private_data = NULL; |
927 | |
928 | pvr2_channel_done(&fhp->channel); |
929 | pvr2_trace(PVR2_TRACE_STRUCT, |
930 | "Destroying pvr_v4l2_fh id=%p" ,fhp); |
931 | if (fhp->input_map) { |
932 | kfree(objp: fhp->input_map); |
933 | fhp->input_map = NULL; |
934 | } |
935 | kfree(objp: fhp); |
936 | if (vp->channel.mc_head->disconnect_flag && |
937 | list_empty(head: &vp->dev_video->devbase.fh_list) && |
938 | (!vp->dev_radio || |
939 | list_empty(head: &vp->dev_radio->devbase.fh_list))) { |
940 | pvr2_v4l2_destroy_no_lock(vp); |
941 | } |
942 | return 0; |
943 | } |
944 | |
945 | |
946 | static int pvr2_v4l2_open(struct file *file) |
947 | { |
948 | struct pvr2_v4l2_dev *dip; /* Our own context pointer */ |
949 | struct pvr2_v4l2_fh *fhp; |
950 | struct pvr2_v4l2 *vp; |
951 | struct pvr2_hdw *hdw; |
952 | unsigned int input_mask = 0; |
953 | unsigned int input_cnt,idx; |
954 | int ret = 0; |
955 | |
956 | dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase); |
957 | |
958 | vp = dip->v4lp; |
959 | hdw = vp->channel.hdw; |
960 | |
961 | pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open" ); |
962 | |
963 | if (!pvr2_hdw_dev_ok(hdw)) { |
964 | pvr2_trace(PVR2_TRACE_OPEN_CLOSE, |
965 | "pvr2_v4l2_open: hardware not ready" ); |
966 | return -EIO; |
967 | } |
968 | |
969 | fhp = kzalloc(size: sizeof(*fhp),GFP_KERNEL); |
970 | if (!fhp) { |
971 | return -ENOMEM; |
972 | } |
973 | |
974 | v4l2_fh_init(fh: &fhp->fh, vdev: &dip->devbase); |
975 | init_waitqueue_head(&fhp->wait_data); |
976 | fhp->pdi = dip; |
977 | |
978 | pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p" ,fhp); |
979 | pvr2_channel_init(&fhp->channel,vp->channel.mc_head); |
980 | |
981 | if (dip->v4l_type == VFL_TYPE_RADIO) { |
982 | /* Opening device as a radio, legal input selection subset |
983 | is just the radio. */ |
984 | input_mask = (1 << PVR2_CVAL_INPUT_RADIO); |
985 | } else { |
986 | /* Opening the main V4L device, legal input selection |
987 | subset includes all analog inputs. */ |
988 | input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) | |
989 | (1 << PVR2_CVAL_INPUT_TV) | |
990 | (1 << PVR2_CVAL_INPUT_COMPOSITE) | |
991 | (1 << PVR2_CVAL_INPUT_SVIDEO)); |
992 | } |
993 | ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask); |
994 | if (ret) { |
995 | pvr2_channel_done(&fhp->channel); |
996 | pvr2_trace(PVR2_TRACE_STRUCT, |
997 | "Destroying pvr_v4l2_fh id=%p (input mask error)" , |
998 | fhp); |
999 | v4l2_fh_exit(fh: &fhp->fh); |
1000 | kfree(objp: fhp); |
1001 | return ret; |
1002 | } |
1003 | |
1004 | input_mask &= pvr2_hdw_get_input_available(hdw); |
1005 | input_cnt = 0; |
1006 | for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { |
1007 | if (input_mask & (1UL << idx)) input_cnt++; |
1008 | } |
1009 | fhp->input_cnt = input_cnt; |
1010 | fhp->input_map = kzalloc(size: input_cnt,GFP_KERNEL); |
1011 | if (!fhp->input_map) { |
1012 | pvr2_channel_done(&fhp->channel); |
1013 | pvr2_trace(PVR2_TRACE_STRUCT, |
1014 | "Destroying pvr_v4l2_fh id=%p (input map failure)" , |
1015 | fhp); |
1016 | v4l2_fh_exit(fh: &fhp->fh); |
1017 | kfree(objp: fhp); |
1018 | return -ENOMEM; |
1019 | } |
1020 | input_cnt = 0; |
1021 | for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) { |
1022 | if (!(input_mask & (1UL << idx))) continue; |
1023 | fhp->input_map[input_cnt++] = idx; |
1024 | } |
1025 | |
1026 | fhp->file = file; |
1027 | file->private_data = fhp; |
1028 | |
1029 | fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw); |
1030 | v4l2_fh_add(fh: &fhp->fh); |
1031 | |
1032 | return 0; |
1033 | } |
1034 | |
1035 | |
1036 | static void pvr2_v4l2_notify(void *ptr) |
1037 | { |
1038 | struct pvr2_v4l2_fh *fhp = ptr; |
1039 | |
1040 | wake_up(&fhp->wait_data); |
1041 | } |
1042 | |
1043 | static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh) |
1044 | { |
1045 | int ret; |
1046 | struct pvr2_stream *sp; |
1047 | struct pvr2_hdw *hdw; |
1048 | if (fh->rhp) return 0; |
1049 | |
1050 | if (!fh->pdi->stream) { |
1051 | /* No stream defined for this node. This means that we're |
1052 | not currently allowed to stream from this node. */ |
1053 | return -EPERM; |
1054 | } |
1055 | |
1056 | /* First read() attempt. Try to claim the stream and start |
1057 | it... */ |
1058 | if ((ret = pvr2_channel_claim_stream(&fh->channel, |
1059 | fh->pdi->stream)) != 0) { |
1060 | /* Someone else must already have it */ |
1061 | return ret; |
1062 | } |
1063 | |
1064 | fh->rhp = pvr2_channel_create_mpeg_stream(fh->pdi->stream); |
1065 | if (!fh->rhp) { |
1066 | pvr2_channel_claim_stream(&fh->channel,NULL); |
1067 | return -ENOMEM; |
1068 | } |
1069 | |
1070 | hdw = fh->channel.mc_head->hdw; |
1071 | sp = fh->pdi->stream->stream; |
1072 | pvr2_stream_set_callback(sp, func: pvr2_v4l2_notify, data: fh); |
1073 | pvr2_hdw_set_stream_type(hdw,fh->pdi->config); |
1074 | if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret; |
1075 | return pvr2_ioread_set_enabled(fh->rhp,fl: !0); |
1076 | } |
1077 | |
1078 | |
1079 | static ssize_t pvr2_v4l2_read(struct file *file, |
1080 | char __user *buff, size_t count, loff_t *ppos) |
1081 | { |
1082 | struct pvr2_v4l2_fh *fh = file->private_data; |
1083 | int ret; |
1084 | |
1085 | if (fh->fw_mode_flag) { |
1086 | struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; |
1087 | char *tbuf; |
1088 | int c1,c2; |
1089 | int tcnt = 0; |
1090 | unsigned int offs = *ppos; |
1091 | |
1092 | tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL); |
1093 | if (!tbuf) return -ENOMEM; |
1094 | |
1095 | while (count) { |
1096 | c1 = count; |
1097 | if (c1 > PAGE_SIZE) c1 = PAGE_SIZE; |
1098 | c2 = pvr2_hdw_cpufw_get(hdw,offs,buf: tbuf,cnt: c1); |
1099 | if (c2 < 0) { |
1100 | tcnt = c2; |
1101 | break; |
1102 | } |
1103 | if (!c2) break; |
1104 | if (copy_to_user(to: buff,from: tbuf,n: c2)) { |
1105 | tcnt = -EFAULT; |
1106 | break; |
1107 | } |
1108 | offs += c2; |
1109 | tcnt += c2; |
1110 | buff += c2; |
1111 | count -= c2; |
1112 | *ppos += c2; |
1113 | } |
1114 | kfree(objp: tbuf); |
1115 | return tcnt; |
1116 | } |
1117 | |
1118 | if (!fh->rhp) { |
1119 | ret = pvr2_v4l2_iosetup(fh); |
1120 | if (ret) { |
1121 | return ret; |
1122 | } |
1123 | } |
1124 | |
1125 | for (;;) { |
1126 | ret = pvr2_ioread_read(fh->rhp,buf: buff,cnt: count); |
1127 | if (ret >= 0) break; |
1128 | if (ret != -EAGAIN) break; |
1129 | if (file->f_flags & O_NONBLOCK) break; |
1130 | /* Doing blocking I/O. Wait here. */ |
1131 | ret = wait_event_interruptible( |
1132 | fh->wait_data, |
1133 | pvr2_ioread_avail(fh->rhp) >= 0); |
1134 | if (ret < 0) break; |
1135 | } |
1136 | |
1137 | return ret; |
1138 | } |
1139 | |
1140 | |
1141 | static __poll_t pvr2_v4l2_poll(struct file *file, poll_table *wait) |
1142 | { |
1143 | __poll_t mask = 0; |
1144 | struct pvr2_v4l2_fh *fh = file->private_data; |
1145 | int ret; |
1146 | |
1147 | if (fh->fw_mode_flag) { |
1148 | mask |= EPOLLIN | EPOLLRDNORM; |
1149 | return mask; |
1150 | } |
1151 | |
1152 | if (!fh->rhp) { |
1153 | ret = pvr2_v4l2_iosetup(fh); |
1154 | if (ret) return EPOLLERR; |
1155 | } |
1156 | |
1157 | poll_wait(filp: file,wait_address: &fh->wait_data,p: wait); |
1158 | |
1159 | if (pvr2_ioread_avail(fh->rhp) >= 0) { |
1160 | mask |= EPOLLIN | EPOLLRDNORM; |
1161 | } |
1162 | |
1163 | return mask; |
1164 | } |
1165 | |
1166 | |
1167 | static const struct v4l2_file_operations vdev_fops = { |
1168 | .owner = THIS_MODULE, |
1169 | .open = pvr2_v4l2_open, |
1170 | .release = pvr2_v4l2_release, |
1171 | .read = pvr2_v4l2_read, |
1172 | .unlocked_ioctl = video_ioctl2, |
1173 | .poll = pvr2_v4l2_poll, |
1174 | }; |
1175 | |
1176 | |
1177 | static const struct video_device vdev_template = { |
1178 | .fops = &vdev_fops, |
1179 | }; |
1180 | |
1181 | |
1182 | static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip, |
1183 | struct pvr2_v4l2 *vp, |
1184 | int v4l_type) |
1185 | { |
1186 | int mindevnum; |
1187 | int unit_number; |
1188 | struct pvr2_hdw *hdw; |
1189 | int *nr_ptr = NULL; |
1190 | u32 caps = V4L2_CAP_TUNER | V4L2_CAP_READWRITE; |
1191 | |
1192 | dip->v4lp = vp; |
1193 | |
1194 | hdw = vp->channel.mc_head->hdw; |
1195 | dip->v4l_type = v4l_type; |
1196 | switch (v4l_type) { |
1197 | case VFL_TYPE_VIDEO: |
1198 | dip->stream = &vp->channel.mc_head->video_stream; |
1199 | dip->config = pvr2_config_mpeg; |
1200 | dip->minor_type = pvr2_v4l_type_video; |
1201 | nr_ptr = video_nr; |
1202 | caps |= V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO; |
1203 | break; |
1204 | case VFL_TYPE_VBI: |
1205 | dip->config = pvr2_config_vbi; |
1206 | dip->minor_type = pvr2_v4l_type_vbi; |
1207 | nr_ptr = vbi_nr; |
1208 | caps |= V4L2_CAP_VBI_CAPTURE; |
1209 | break; |
1210 | case VFL_TYPE_RADIO: |
1211 | dip->stream = &vp->channel.mc_head->video_stream; |
1212 | dip->config = pvr2_config_mpeg; |
1213 | dip->minor_type = pvr2_v4l_type_radio; |
1214 | nr_ptr = radio_nr; |
1215 | caps |= V4L2_CAP_RADIO; |
1216 | break; |
1217 | default: |
1218 | /* Bail out (this should be impossible) */ |
1219 | pr_err(KBUILD_MODNAME ": Failed to set up pvrusb2 v4l dev due to unrecognized config\n" ); |
1220 | return; |
1221 | } |
1222 | |
1223 | dip->devbase = vdev_template; |
1224 | dip->devbase.release = pvr2_video_device_release; |
1225 | dip->devbase.ioctl_ops = &pvr2_ioctl_ops; |
1226 | dip->devbase.device_caps = caps; |
1227 | { |
1228 | int val; |
1229 | pvr2_ctrl_get_value( |
1230 | pvr2_hdw_get_ctrl_by_id(hdw, |
1231 | PVR2_CID_STDAVAIL), valptr: &val); |
1232 | dip->devbase.tvnorms = (v4l2_std_id)val; |
1233 | } |
1234 | |
1235 | mindevnum = -1; |
1236 | unit_number = pvr2_hdw_get_unit_number(hdw); |
1237 | if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) { |
1238 | mindevnum = nr_ptr[unit_number]; |
1239 | } |
1240 | pvr2_hdw_set_v4l2_dev(hdw, &dip->devbase); |
1241 | if ((video_register_device(vdev: &dip->devbase, |
1242 | type: dip->v4l_type, nr: mindevnum) < 0) && |
1243 | (video_register_device(vdev: &dip->devbase, |
1244 | type: dip->v4l_type, nr: -1) < 0)) { |
1245 | pr_err(KBUILD_MODNAME |
1246 | ": Failed to register pvrusb2 v4l device\n" ); |
1247 | } |
1248 | |
1249 | pr_info("pvrusb2: registered device %s [%s]\n" , |
1250 | video_device_node_name(&dip->devbase), |
1251 | pvr2_config_get_name(dip->config)); |
1252 | |
1253 | pvr2_hdw_v4l_store_minor_number(hdw, |
1254 | index: dip->minor_type,dip->devbase.minor); |
1255 | } |
1256 | |
1257 | |
1258 | struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp) |
1259 | { |
1260 | struct pvr2_v4l2 *vp; |
1261 | |
1262 | vp = kzalloc(size: sizeof(*vp),GFP_KERNEL); |
1263 | if (!vp) return vp; |
1264 | pvr2_channel_init(&vp->channel,mnp); |
1265 | pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p" ,vp); |
1266 | |
1267 | vp->channel.check_func = pvr2_v4l2_internal_check; |
1268 | |
1269 | /* register streams */ |
1270 | vp->dev_video = kzalloc(size: sizeof(*vp->dev_video),GFP_KERNEL); |
1271 | if (!vp->dev_video) goto fail; |
1272 | pvr2_v4l2_dev_init(dip: vp->dev_video,vp,v4l_type: VFL_TYPE_VIDEO); |
1273 | if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) & |
1274 | (1 << PVR2_CVAL_INPUT_RADIO)) { |
1275 | vp->dev_radio = kzalloc(size: sizeof(*vp->dev_radio),GFP_KERNEL); |
1276 | if (!vp->dev_radio) goto fail; |
1277 | pvr2_v4l2_dev_init(dip: vp->dev_radio,vp,v4l_type: VFL_TYPE_RADIO); |
1278 | } |
1279 | |
1280 | return vp; |
1281 | fail: |
1282 | pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p" ,vp); |
1283 | pvr2_v4l2_destroy_no_lock(vp); |
1284 | return NULL; |
1285 | } |
1286 | |