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Commit | Line | Data |
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1a0adaf3 HV |
1 | /* |
2 | init/start/stop/exit stream functions | |
3 | Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> | |
4 | Copyright (C) 2004 Chris Kennedy <c@groovy.org> | |
5 | Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> | |
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, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | /* License: GPL | |
23 | * Author: Kevin Thayer <nufan_wfk at yahoo dot com> | |
24 | * | |
25 | * This file will hold API related functions, both internal (firmware api) | |
26 | * and external (v4l2, etc) | |
27 | * | |
28 | * ----- | |
29 | * MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com> | |
30 | * and Takeru KOMORIYA<komoriya@paken.org> | |
31 | * | |
32 | * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org> | |
33 | * using information provided by Jiun-Kuei Jung @ AVerMedia. | |
34 | */ | |
35 | ||
36 | #include "ivtv-driver.h" | |
37 | #include "ivtv-fileops.h" | |
1a0adaf3 HV |
38 | #include "ivtv-queue.h" |
39 | #include "ivtv-mailbox.h" | |
1a0adaf3 | 40 | #include "ivtv-ioctl.h" |
33c0fcad | 41 | #include "ivtv-irq.h" |
612570f2 | 42 | #include "ivtv-yuv.h" |
1a0adaf3 | 43 | #include "ivtv-cards.h" |
612570f2 | 44 | #include "ivtv-streams.h" |
1a0adaf3 HV |
45 | |
46 | static struct file_operations ivtv_v4l2_enc_fops = { | |
47 | .owner = THIS_MODULE, | |
48 | .read = ivtv_v4l2_read, | |
49 | .write = ivtv_v4l2_write, | |
50 | .open = ivtv_v4l2_open, | |
51 | .ioctl = ivtv_v4l2_ioctl, | |
52 | .release = ivtv_v4l2_close, | |
53 | .poll = ivtv_v4l2_enc_poll, | |
54 | }; | |
55 | ||
56 | static struct file_operations ivtv_v4l2_dec_fops = { | |
57 | .owner = THIS_MODULE, | |
58 | .read = ivtv_v4l2_read, | |
59 | .write = ivtv_v4l2_write, | |
60 | .open = ivtv_v4l2_open, | |
61 | .ioctl = ivtv_v4l2_ioctl, | |
62 | .release = ivtv_v4l2_close, | |
63 | .poll = ivtv_v4l2_dec_poll, | |
64 | }; | |
65 | ||
33c0fcad HV |
66 | #define IVTV_V4L2_DEC_MPG_OFFSET 16 /* offset from 0 to register decoder mpg v4l2 minors on */ |
67 | #define IVTV_V4L2_ENC_PCM_OFFSET 24 /* offset from 0 to register pcm v4l2 minors on */ | |
68 | #define IVTV_V4L2_ENC_YUV_OFFSET 32 /* offset from 0 to register yuv v4l2 minors on */ | |
69 | #define IVTV_V4L2_DEC_YUV_OFFSET 48 /* offset from 0 to register decoder yuv v4l2 minors on */ | |
70 | #define IVTV_V4L2_DEC_VBI_OFFSET 8 /* offset from 0 to register decoder vbi input v4l2 minors on */ | |
71 | #define IVTV_V4L2_DEC_VOUT_OFFSET 16 /* offset from 0 to register vbi output v4l2 minors on */ | |
72 | ||
31ec1356 | 73 | static struct { |
1a0adaf3 HV |
74 | const char *name; |
75 | int vfl_type; | |
76 | int minor_offset; | |
77 | int dma, pio; | |
78 | enum v4l2_buf_type buf_type; | |
79 | struct file_operations *fops; | |
80 | } ivtv_stream_info[] = { | |
81 | { /* IVTV_ENC_STREAM_TYPE_MPG */ | |
7c03a448 | 82 | "encoder MPG", |
1a0adaf3 HV |
83 | VFL_TYPE_GRABBER, 0, |
84 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
85 | &ivtv_v4l2_enc_fops | |
86 | }, | |
87 | { /* IVTV_ENC_STREAM_TYPE_YUV */ | |
88 | "encoder YUV", | |
89 | VFL_TYPE_GRABBER, IVTV_V4L2_ENC_YUV_OFFSET, | |
90 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
91 | &ivtv_v4l2_enc_fops | |
92 | }, | |
93 | { /* IVTV_ENC_STREAM_TYPE_VBI */ | |
94 | "encoder VBI", | |
95 | VFL_TYPE_VBI, 0, | |
96 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_VBI_CAPTURE, | |
97 | &ivtv_v4l2_enc_fops | |
98 | }, | |
99 | { /* IVTV_ENC_STREAM_TYPE_PCM */ | |
7c03a448 | 100 | "encoder PCM", |
1a0adaf3 HV |
101 | VFL_TYPE_GRABBER, IVTV_V4L2_ENC_PCM_OFFSET, |
102 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_PRIVATE, | |
103 | &ivtv_v4l2_enc_fops | |
104 | }, | |
105 | { /* IVTV_ENC_STREAM_TYPE_RAD */ | |
106 | "encoder radio", | |
107 | VFL_TYPE_RADIO, 0, | |
108 | PCI_DMA_NONE, 1, V4L2_BUF_TYPE_PRIVATE, | |
109 | &ivtv_v4l2_enc_fops | |
110 | }, | |
111 | { /* IVTV_DEC_STREAM_TYPE_MPG */ | |
7c03a448 | 112 | "decoder MPG", |
1a0adaf3 HV |
113 | VFL_TYPE_GRABBER, IVTV_V4L2_DEC_MPG_OFFSET, |
114 | PCI_DMA_TODEVICE, 0, V4L2_BUF_TYPE_VIDEO_OUTPUT, | |
115 | &ivtv_v4l2_dec_fops | |
116 | }, | |
117 | { /* IVTV_DEC_STREAM_TYPE_VBI */ | |
118 | "decoder VBI", | |
119 | VFL_TYPE_VBI, IVTV_V4L2_DEC_VBI_OFFSET, | |
120 | PCI_DMA_NONE, 1, V4L2_BUF_TYPE_VBI_CAPTURE, | |
121 | &ivtv_v4l2_enc_fops | |
122 | }, | |
123 | { /* IVTV_DEC_STREAM_TYPE_VOUT */ | |
124 | "decoder VOUT", | |
125 | VFL_TYPE_VBI, IVTV_V4L2_DEC_VOUT_OFFSET, | |
126 | PCI_DMA_NONE, 1, V4L2_BUF_TYPE_VBI_OUTPUT, | |
127 | &ivtv_v4l2_dec_fops | |
128 | }, | |
129 | { /* IVTV_DEC_STREAM_TYPE_YUV */ | |
130 | "decoder YUV", | |
131 | VFL_TYPE_GRABBER, IVTV_V4L2_DEC_YUV_OFFSET, | |
132 | PCI_DMA_TODEVICE, 0, V4L2_BUF_TYPE_VIDEO_OUTPUT, | |
133 | &ivtv_v4l2_dec_fops | |
134 | } | |
135 | }; | |
136 | ||
137 | static void ivtv_stream_init(struct ivtv *itv, int type) | |
138 | { | |
139 | struct ivtv_stream *s = &itv->streams[type]; | |
140 | struct video_device *dev = s->v4l2dev; | |
141 | ||
142 | /* we need to keep v4l2dev, so restore it afterwards */ | |
143 | memset(s, 0, sizeof(*s)); | |
144 | s->v4l2dev = dev; | |
145 | ||
146 | /* initialize ivtv_stream fields */ | |
147 | s->itv = itv; | |
148 | s->type = type; | |
149 | s->name = ivtv_stream_info[type].name; | |
150 | ||
151 | if (ivtv_stream_info[type].pio) | |
152 | s->dma = PCI_DMA_NONE; | |
153 | else | |
154 | s->dma = ivtv_stream_info[type].dma; | |
155 | s->buf_size = itv->stream_buf_size[type]; | |
156 | if (s->buf_size) | |
313e91e8 | 157 | s->buffers = (itv->options.kilobytes[type] * 1024 + s->buf_size - 1) / s->buf_size; |
1a0adaf3 HV |
158 | spin_lock_init(&s->qlock); |
159 | init_waitqueue_head(&s->waitq); | |
160 | s->id = -1; | |
37093b1e | 161 | s->sg_handle = IVTV_DMA_UNMAPPED; |
1a0adaf3 HV |
162 | ivtv_queue_init(&s->q_free); |
163 | ivtv_queue_init(&s->q_full); | |
164 | ivtv_queue_init(&s->q_dma); | |
165 | ivtv_queue_init(&s->q_predma); | |
166 | ivtv_queue_init(&s->q_io); | |
167 | } | |
168 | ||
18e16f9c | 169 | static int ivtv_prep_dev(struct ivtv *itv, int type) |
1a0adaf3 HV |
170 | { |
171 | struct ivtv_stream *s = &itv->streams[type]; | |
1a0adaf3 HV |
172 | int minor_offset = ivtv_stream_info[type].minor_offset; |
173 | int minor; | |
174 | ||
175 | /* These four fields are always initialized. If v4l2dev == NULL, then | |
176 | this stream is not in use. In that case no other fields but these | |
177 | four can be used. */ | |
178 | s->v4l2dev = NULL; | |
179 | s->itv = itv; | |
180 | s->type = type; | |
181 | s->name = ivtv_stream_info[type].name; | |
182 | ||
183 | /* Check whether the radio is supported */ | |
184 | if (type == IVTV_ENC_STREAM_TYPE_RAD && !(itv->v4l2_cap & V4L2_CAP_RADIO)) | |
185 | return 0; | |
186 | if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) | |
187 | return 0; | |
188 | ||
18e16f9c HV |
189 | /* card number + user defined offset + device offset */ |
190 | minor = itv->num + ivtv_first_minor + minor_offset; | |
1a0adaf3 HV |
191 | |
192 | /* User explicitly selected 0 buffers for these streams, so don't | |
193 | create them. */ | |
18e16f9c | 194 | if (ivtv_stream_info[type].dma != PCI_DMA_NONE && |
313e91e8 | 195 | itv->options.kilobytes[type] == 0) { |
1a0adaf3 HV |
196 | IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name); |
197 | return 0; | |
198 | } | |
199 | ||
200 | ivtv_stream_init(itv, type); | |
201 | ||
202 | /* allocate and initialize the v4l2 video device structure */ | |
203 | s->v4l2dev = video_device_alloc(); | |
204 | if (s->v4l2dev == NULL) { | |
205 | IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name); | |
206 | return -ENOMEM; | |
207 | } | |
208 | ||
209 | s->v4l2dev->type = VID_TYPE_CAPTURE | VID_TYPE_TUNER | VID_TYPE_TELETEXT | | |
210 | VID_TYPE_CLIPPING | VID_TYPE_SCALES | VID_TYPE_MPEG_ENCODER; | |
211 | if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) { | |
212 | s->v4l2dev->type |= VID_TYPE_MPEG_DECODER; | |
213 | } | |
214 | snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "ivtv%d %s", | |
215 | itv->num, s->name); | |
216 | ||
217 | s->v4l2dev->minor = minor; | |
218 | s->v4l2dev->dev = &itv->dev->dev; | |
219 | s->v4l2dev->fops = ivtv_stream_info[type].fops; | |
220 | s->v4l2dev->release = video_device_release; | |
221 | ||
18e16f9c HV |
222 | return 0; |
223 | } | |
224 | ||
225 | /* Initialize v4l2 variables and prepare v4l2 devices */ | |
226 | int ivtv_streams_setup(struct ivtv *itv) | |
227 | { | |
228 | int type; | |
229 | ||
230 | /* Setup V4L2 Devices */ | |
231 | for (type = 0; type < IVTV_MAX_STREAMS; type++) { | |
232 | /* Prepare device */ | |
233 | if (ivtv_prep_dev(itv, type)) | |
234 | break; | |
235 | ||
236 | if (itv->streams[type].v4l2dev == NULL) | |
237 | continue; | |
238 | ||
239 | /* Allocate Stream */ | |
240 | if (ivtv_stream_alloc(&itv->streams[type])) | |
241 | break; | |
1a0adaf3 | 242 | } |
18e16f9c | 243 | if (type == IVTV_MAX_STREAMS) |
1a0adaf3 | 244 | return 0; |
18e16f9c HV |
245 | |
246 | /* One or more streams could not be initialized. Clean 'em all up. */ | |
247 | ivtv_streams_cleanup(itv); | |
248 | return -ENOMEM; | |
249 | } | |
250 | ||
251 | static int ivtv_reg_dev(struct ivtv *itv, int type) | |
252 | { | |
253 | struct ivtv_stream *s = &itv->streams[type]; | |
254 | int vfl_type = ivtv_stream_info[type].vfl_type; | |
255 | int minor; | |
256 | ||
257 | if (s->v4l2dev == NULL) | |
258 | return 0; | |
259 | ||
260 | minor = s->v4l2dev->minor; | |
261 | /* Register device. First try the desired minor, then any free one. */ | |
262 | if (video_register_device(s->v4l2dev, vfl_type, minor) && | |
263 | video_register_device(s->v4l2dev, vfl_type, -1)) { | |
264 | IVTV_ERR("Couldn't register v4l2 device for %s minor %d\n", | |
265 | s->name, minor); | |
266 | video_device_release(s->v4l2dev); | |
267 | s->v4l2dev = NULL; | |
268 | return -ENOMEM; | |
1a0adaf3 HV |
269 | } |
270 | ||
271 | switch (vfl_type) { | |
272 | case VFL_TYPE_GRABBER: | |
313e91e8 HV |
273 | IVTV_INFO("Registered device video%d for %s (%d kB)\n", |
274 | s->v4l2dev->minor, s->name, itv->options.kilobytes[type]); | |
1a0adaf3 HV |
275 | break; |
276 | case VFL_TYPE_RADIO: | |
277 | IVTV_INFO("Registered device radio%d for %s\n", | |
278 | s->v4l2dev->minor - MINOR_VFL_TYPE_RADIO_MIN, s->name); | |
279 | break; | |
280 | case VFL_TYPE_VBI: | |
313e91e8 HV |
281 | if (itv->options.kilobytes[type]) |
282 | IVTV_INFO("Registered device vbi%d for %s (%d kB)\n", | |
1a0adaf3 | 283 | s->v4l2dev->minor - MINOR_VFL_TYPE_VBI_MIN, |
313e91e8 | 284 | s->name, itv->options.kilobytes[type]); |
1a0adaf3 HV |
285 | else |
286 | IVTV_INFO("Registered device vbi%d for %s\n", | |
287 | s->v4l2dev->minor - MINOR_VFL_TYPE_VBI_MIN, s->name); | |
288 | break; | |
289 | } | |
290 | return 0; | |
291 | } | |
292 | ||
18e16f9c HV |
293 | /* Register v4l2 devices */ |
294 | int ivtv_streams_register(struct ivtv *itv) | |
1a0adaf3 HV |
295 | { |
296 | int type; | |
18e16f9c | 297 | int err = 0; |
1a0adaf3 | 298 | |
18e16f9c HV |
299 | /* Register V4L2 devices */ |
300 | for (type = 0; type < IVTV_MAX_STREAMS; type++) | |
301 | err |= ivtv_reg_dev(itv, type); | |
1a0adaf3 | 302 | |
18e16f9c | 303 | if (err == 0) |
1a0adaf3 | 304 | return 0; |
1a0adaf3 HV |
305 | |
306 | /* One or more streams could not be initialized. Clean 'em all up. */ | |
307 | ivtv_streams_cleanup(itv); | |
308 | return -ENOMEM; | |
309 | } | |
310 | ||
311 | /* Unregister v4l2 devices */ | |
312 | void ivtv_streams_cleanup(struct ivtv *itv) | |
313 | { | |
314 | int type; | |
315 | ||
316 | /* Teardown all streams */ | |
317 | for (type = 0; type < IVTV_MAX_STREAMS; type++) { | |
318 | struct video_device *vdev = itv->streams[type].v4l2dev; | |
319 | ||
320 | itv->streams[type].v4l2dev = NULL; | |
321 | if (vdev == NULL) | |
322 | continue; | |
323 | ||
324 | ivtv_stream_free(&itv->streams[type]); | |
18e16f9c HV |
325 | /* Unregister device */ |
326 | video_unregister_device(vdev); | |
1a0adaf3 HV |
327 | } |
328 | } | |
329 | ||
330 | static void ivtv_vbi_setup(struct ivtv *itv) | |
331 | { | |
332 | int raw = itv->vbi.sliced_in->service_set == 0; | |
333 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
334 | int lines; | |
335 | int i; | |
336 | ||
1a0adaf3 HV |
337 | /* Reset VBI */ |
338 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, 0xffff , 0, 0, 0, 0); | |
339 | ||
1a0adaf3 HV |
340 | /* setup VBI registers */ |
341 | itv->video_dec_func(itv, VIDIOC_S_FMT, &itv->vbi.in); | |
342 | ||
343 | /* determine number of lines and total number of VBI bytes. | |
344 | A raw line takes 1443 bytes: 2 * 720 + 4 byte frame header - 1 | |
345 | The '- 1' byte is probably an unused U or V byte. Or something... | |
346 | A sliced line takes 51 bytes: 4 byte frame header, 4 byte internal | |
347 | header, 42 data bytes + checksum (to be confirmed) */ | |
348 | if (raw) { | |
349 | lines = itv->vbi.count * 2; | |
350 | } else { | |
351 | lines = itv->is_60hz ? 24 : 38; | |
352 | if (itv->is_60hz && (itv->hw_flags & IVTV_HW_CX25840)) | |
353 | lines += 2; | |
354 | } | |
355 | ||
356 | itv->vbi.enc_size = lines * (raw ? itv->vbi.raw_size : itv->vbi.sliced_size); | |
357 | ||
358 | /* Note: sliced vs raw flag doesn't seem to have any effect | |
359 | TODO: check mode (0x02) value with older ivtv versions. */ | |
360 | data[0] = raw | 0x02 | (0xbd << 8); | |
361 | ||
362 | /* Every X number of frames a VBI interrupt arrives (frames as in 25 or 30 fps) */ | |
363 | data[1] = 1; | |
364 | /* The VBI frames are stored in a ringbuffer with this size (with a VBI frame as unit) */ | |
365 | data[2] = raw ? 4 : 8; | |
366 | /* The start/stop codes determine which VBI lines end up in the raw VBI data area. | |
367 | The codes are from table 24 in the saa7115 datasheet. Each raw/sliced/video line | |
368 | is framed with codes FF0000XX where XX is the SAV/EAV (Start/End of Active Video) | |
369 | code. These values for raw VBI are obtained from a driver disassembly. The sliced | |
370 | start/stop codes was deduced from this, but they do not appear in the driver. | |
371 | Other code pairs that I found are: 0x250E6249/0x13545454 and 0x25256262/0x38137F54. | |
372 | However, I have no idea what these values are for. */ | |
373 | if (itv->hw_flags & IVTV_HW_CX25840) { | |
374 | /* Setup VBI for the cx25840 digitizer */ | |
375 | if (raw) { | |
376 | data[3] = 0x20602060; | |
377 | data[4] = 0x30703070; | |
378 | } else { | |
379 | data[3] = 0xB0F0B0F0; | |
380 | data[4] = 0xA0E0A0E0; | |
381 | } | |
382 | /* Lines per frame */ | |
383 | data[5] = lines; | |
384 | /* bytes per line */ | |
385 | data[6] = (raw ? itv->vbi.raw_size : itv->vbi.sliced_size); | |
386 | } else { | |
387 | /* Setup VBI for the saa7115 digitizer */ | |
388 | if (raw) { | |
389 | data[3] = 0x25256262; | |
390 | data[4] = 0x387F7F7F; | |
391 | } else { | |
392 | data[3] = 0xABABECEC; | |
393 | data[4] = 0xB6F1F1F1; | |
394 | } | |
395 | /* Lines per frame */ | |
396 | data[5] = lines; | |
397 | /* bytes per line */ | |
398 | data[6] = itv->vbi.enc_size / lines; | |
399 | } | |
400 | ||
401 | IVTV_DEBUG_INFO( | |
402 | "Setup VBI API header 0x%08x pkts %d buffs %d ln %d sz %d\n", | |
403 | data[0], data[1], data[2], data[5], data[6]); | |
404 | ||
405 | ivtv_api(itv, CX2341X_ENC_SET_VBI_CONFIG, 7, data); | |
406 | ||
407 | /* returns the VBI encoder memory area. */ | |
408 | itv->vbi.enc_start = data[2]; | |
409 | itv->vbi.fpi = data[0]; | |
410 | if (!itv->vbi.fpi) | |
411 | itv->vbi.fpi = 1; | |
412 | ||
fd8b281a HV |
413 | IVTV_DEBUG_INFO("Setup VBI start 0x%08x frames %d fpi %d\n", |
414 | itv->vbi.enc_start, data[1], itv->vbi.fpi); | |
1a0adaf3 HV |
415 | |
416 | /* select VBI lines. | |
417 | Note that the sliced argument seems to have no effect. */ | |
418 | for (i = 2; i <= 24; i++) { | |
419 | int valid; | |
420 | ||
421 | if (itv->is_60hz) { | |
422 | valid = i >= 10 && i < 22; | |
423 | } else { | |
424 | valid = i >= 6 && i < 24; | |
425 | } | |
426 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, i - 1, | |
427 | valid, 0 , 0, 0); | |
428 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, (i - 1) | 0x80000000, | |
429 | valid, 0, 0, 0); | |
430 | } | |
431 | ||
432 | /* Remaining VBI questions: | |
433 | - Is it possible to select particular VBI lines only for inclusion in the MPEG | |
434 | stream? Currently you can only get the first X lines. | |
435 | - Is mixed raw and sliced VBI possible? | |
436 | - What's the meaning of the raw/sliced flag? | |
437 | - What's the meaning of params 2, 3 & 4 of the Select VBI command? */ | |
438 | } | |
439 | ||
440 | int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) | |
441 | { | |
442 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
443 | struct ivtv *itv = s->itv; | |
254d6eb1 | 444 | struct cx2341x_mpeg_params *p = &itv->params; |
1a0adaf3 HV |
445 | int captype = 0, subtype = 0; |
446 | int enable_passthrough = 0; | |
447 | ||
448 | if (s->v4l2dev == NULL) | |
449 | return -EINVAL; | |
450 | ||
451 | IVTV_DEBUG_INFO("Start encoder stream %s\n", s->name); | |
452 | ||
453 | switch (s->type) { | |
454 | case IVTV_ENC_STREAM_TYPE_MPG: | |
455 | captype = 0; | |
456 | subtype = 3; | |
457 | ||
458 | /* Stop Passthrough */ | |
459 | if (itv->output_mode == OUT_PASSTHROUGH) { | |
460 | ivtv_passthrough_mode(itv, 0); | |
461 | enable_passthrough = 1; | |
462 | } | |
463 | itv->mpg_data_received = itv->vbi_data_inserted = 0; | |
464 | itv->dualwatch_jiffies = jiffies; | |
254d6eb1 | 465 | itv->dualwatch_stereo_mode = p->audio_properties & 0x0300; |
1a0adaf3 HV |
466 | itv->search_pack_header = 0; |
467 | break; | |
468 | ||
469 | case IVTV_ENC_STREAM_TYPE_YUV: | |
470 | if (itv->output_mode == OUT_PASSTHROUGH) { | |
471 | captype = 2; | |
472 | subtype = 11; /* video+audio+decoder */ | |
473 | break; | |
474 | } | |
475 | captype = 1; | |
476 | subtype = 1; | |
477 | break; | |
478 | case IVTV_ENC_STREAM_TYPE_PCM: | |
479 | captype = 1; | |
480 | subtype = 2; | |
481 | break; | |
482 | case IVTV_ENC_STREAM_TYPE_VBI: | |
483 | captype = 1; | |
484 | subtype = 4; | |
485 | ||
486 | itv->vbi.frame = 0; | |
487 | itv->vbi.inserted_frame = 0; | |
488 | memset(itv->vbi.sliced_mpeg_size, | |
489 | 0, sizeof(itv->vbi.sliced_mpeg_size)); | |
490 | break; | |
491 | default: | |
492 | return -EINVAL; | |
493 | } | |
494 | s->subtype = subtype; | |
495 | s->buffers_stolen = 0; | |
496 | ||
1a0adaf3 HV |
497 | /* Clear Streamoff flags in case left from last capture */ |
498 | clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); | |
499 | ||
500 | if (atomic_read(&itv->capturing) == 0) { | |
fd8b281a HV |
501 | int digitizer; |
502 | ||
1a0adaf3 HV |
503 | /* Always use frame based mode. Experiments have demonstrated that byte |
504 | stream based mode results in dropped frames and corruption. Not often, | |
505 | but occasionally. Many thanks go to Leonard Orb who spent a lot of | |
506 | effort and time trying to trace the cause of the drop outs. */ | |
507 | /* 1 frame per DMA */ | |
508 | /*ivtv_vapi(itv, CX2341X_ENC_SET_DMA_BLOCK_SIZE, 2, 128, 0); */ | |
509 | ivtv_vapi(itv, CX2341X_ENC_SET_DMA_BLOCK_SIZE, 2, 1, 1); | |
510 | ||
511 | /* Stuff from Windows, we don't know what it is */ | |
512 | ivtv_vapi(itv, CX2341X_ENC_SET_VERT_CROP_LINE, 1, 0); | |
513 | /* According to the docs, this should be correct. However, this is | |
514 | untested. I don't dare enable this without having tested it. | |
515 | Only very few old cards actually have this hardware combination. | |
516 | ivtv_vapi(itv, CX2341X_ENC_SET_VERT_CROP_LINE, 1, | |
517 | ((itv->hw_flags & IVTV_HW_SAA7114) && itv->is_60hz) ? 10001 : 0); | |
518 | */ | |
519 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 3, !itv->has_cx23415); | |
520 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 8, 0); | |
521 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 4, 1); | |
522 | ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12); | |
523 | ||
524 | /* assign placeholder */ | |
525 | ivtv_vapi(itv, CX2341X_ENC_SET_PLACEHOLDER, 12, | |
526 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
527 | ||
fd8b281a HV |
528 | if (itv->card->hw_all & (IVTV_HW_SAA7115 | IVTV_HW_SAA717X)) |
529 | digitizer = 0xF1; | |
530 | else if (itv->card->hw_all & IVTV_HW_SAA7114) | |
531 | digitizer = 0xEF; | |
532 | else /* cx25840 */ | |
533 | digitizer = 0x140; | |
534 | ||
535 | ivtv_vapi(itv, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, digitizer, digitizer); | |
1a0adaf3 HV |
536 | |
537 | /* Setup VBI */ | |
538 | if (itv->v4l2_cap & V4L2_CAP_VBI_CAPTURE) { | |
539 | ivtv_vbi_setup(itv); | |
540 | } | |
541 | ||
542 | /* assign program index info. Mask 7: select I/P/B, Num_req: 400 max */ | |
543 | ivtv_vapi_result(itv, data, CX2341X_ENC_SET_PGM_INDEX_INFO, 2, 7, 400); | |
544 | itv->pgm_info_offset = data[0]; | |
545 | itv->pgm_info_num = data[1]; | |
546 | itv->pgm_info_write_idx = 0; | |
547 | itv->pgm_info_read_idx = 0; | |
548 | ||
549 | IVTV_DEBUG_INFO("PGM Index at 0x%08x with %d elements\n", | |
550 | itv->pgm_info_offset, itv->pgm_info_num); | |
551 | ||
552 | /* Setup API for Stream */ | |
254d6eb1 HV |
553 | cx2341x_update(itv, ivtv_api_func, NULL, p); |
554 | ||
555 | /* mute if capturing radio */ | |
556 | if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) | |
557 | ivtv_vapi(itv, CX2341X_ENC_MUTE_VIDEO, 1, | |
558 | 1 | (p->video_mute_yuv << 8)); | |
1a0adaf3 HV |
559 | } |
560 | ||
561 | /* Vsync Setup */ | |
562 | if (itv->has_cx23415 && !test_and_set_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { | |
563 | /* event notification (on) */ | |
564 | ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 1, IVTV_IRQ_ENC_VIM_RST, -1); | |
565 | ivtv_clear_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); | |
566 | } | |
567 | ||
568 | if (atomic_read(&itv->capturing) == 0) { | |
569 | /* Clear all Pending Interrupts */ | |
570 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); | |
571 | ||
572 | clear_bit(IVTV_F_I_EOS, &itv->i_flags); | |
573 | ||
574 | /* Initialize Digitizer for Capture */ | |
3562c43b HV |
575 | itv->video_dec_func(itv, VIDIOC_STREAMOFF, 0); |
576 | ivtv_msleep_timeout(300, 1); | |
1a0adaf3 | 577 | ivtv_vapi(itv, CX2341X_ENC_INITIALIZE_INPUT, 0); |
3562c43b | 578 | itv->video_dec_func(itv, VIDIOC_STREAMON, 0); |
1a0adaf3 HV |
579 | } |
580 | ||
581 | /* begin_capture */ | |
582 | if (ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, captype, subtype)) | |
583 | { | |
584 | IVTV_DEBUG_WARN( "Error starting capture!\n"); | |
585 | return -EINVAL; | |
586 | } | |
587 | ||
588 | /* Start Passthrough */ | |
589 | if (enable_passthrough) { | |
590 | ivtv_passthrough_mode(itv, 1); | |
591 | } | |
592 | ||
593 | if (s->type == IVTV_ENC_STREAM_TYPE_VBI) | |
594 | ivtv_clear_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); | |
595 | else | |
596 | ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); | |
597 | ||
598 | /* you're live! sit back and await interrupts :) */ | |
599 | atomic_inc(&itv->capturing); | |
600 | return 0; | |
601 | } | |
602 | ||
603 | static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s) | |
604 | { | |
605 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
606 | struct ivtv *itv = s->itv; | |
254d6eb1 | 607 | struct cx2341x_mpeg_params *p = &itv->params; |
1a0adaf3 HV |
608 | int datatype; |
609 | ||
610 | if (s->v4l2dev == NULL) | |
611 | return -EINVAL; | |
612 | ||
613 | IVTV_DEBUG_INFO("Setting some initial decoder settings\n"); | |
614 | ||
1a0adaf3 HV |
615 | /* set audio mode to left/stereo for dual/stereo mode. */ |
616 | ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); | |
617 | ||
618 | /* set number of internal decoder buffers */ | |
619 | ivtv_vapi(itv, CX2341X_DEC_SET_DISPLAY_BUFFERS, 1, 0); | |
620 | ||
621 | /* prebuffering */ | |
622 | ivtv_vapi(itv, CX2341X_DEC_SET_PREBUFFERING, 1, 1); | |
623 | ||
624 | /* extract from user packets */ | |
625 | ivtv_vapi_result(itv, data, CX2341X_DEC_EXTRACT_VBI, 1, 1); | |
626 | itv->vbi.dec_start = data[0]; | |
627 | ||
628 | IVTV_DEBUG_INFO("Decoder VBI RE-Insert start 0x%08x size 0x%08x\n", | |
629 | itv->vbi.dec_start, data[1]); | |
630 | ||
631 | /* set decoder source settings */ | |
632 | /* Data type: 0 = mpeg from host, | |
633 | 1 = yuv from encoder, | |
634 | 2 = yuv_from_host */ | |
635 | switch (s->type) { | |
636 | case IVTV_DEC_STREAM_TYPE_YUV: | |
637 | datatype = itv->output_mode == OUT_PASSTHROUGH ? 1 : 2; | |
638 | IVTV_DEBUG_INFO("Setup DEC YUV Stream data[0] = %d\n", datatype); | |
639 | break; | |
640 | case IVTV_DEC_STREAM_TYPE_MPG: | |
641 | default: | |
642 | datatype = 0; | |
643 | break; | |
644 | } | |
645 | if (ivtv_vapi(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, datatype, | |
254d6eb1 | 646 | p->width, p->height, p->audio_properties)) { |
5a338c38 | 647 | IVTV_DEBUG_WARN("Couldn't initialize decoder source\n"); |
1a0adaf3 HV |
648 | } |
649 | return 0; | |
650 | } | |
651 | ||
652 | int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset) | |
653 | { | |
654 | struct ivtv *itv = s->itv; | |
655 | ||
656 | if (s->v4l2dev == NULL) | |
657 | return -EINVAL; | |
658 | ||
659 | if (test_and_set_bit(IVTV_F_S_STREAMING, &s->s_flags)) | |
660 | return 0; /* already started */ | |
661 | ||
662 | IVTV_DEBUG_INFO("Starting decode stream %s (gop_offset %d)\n", s->name, gop_offset); | |
663 | ||
664 | /* Clear Streamoff */ | |
665 | if (s->type == IVTV_DEC_STREAM_TYPE_YUV) { | |
666 | /* Initialize Decoder */ | |
667 | /* Reprogram Decoder YUV Buffers for YUV */ | |
668 | write_reg(yuv_offset[0] >> 4, 0x82c); | |
669 | write_reg((yuv_offset[0] + IVTV_YUV_BUFFER_UV_OFFSET) >> 4, 0x830); | |
670 | write_reg(yuv_offset[0] >> 4, 0x834); | |
671 | write_reg((yuv_offset[0] + IVTV_YUV_BUFFER_UV_OFFSET) >> 4, 0x838); | |
672 | ||
673 | write_reg_sync(0x00000000 | (0x0c << 16) | (0x0b << 8), 0x2d24); | |
674 | ||
675 | write_reg_sync(0x00108080, 0x2898); | |
676 | /* Enable YUV decoder output */ | |
677 | write_reg_sync(0x01, IVTV_REG_VDM); | |
678 | } | |
679 | ||
680 | ivtv_setup_v4l2_decode_stream(s); | |
681 | ||
682 | /* set dma size to 65536 bytes */ | |
683 | ivtv_vapi(itv, CX2341X_DEC_SET_DMA_BLOCK_SIZE, 1, 65536); | |
684 | ||
685 | clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); | |
686 | ||
687 | /* Zero out decoder counters */ | |
33c0fcad HV |
688 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[0]); |
689 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[1]); | |
690 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[2]); | |
691 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[3]); | |
1a0adaf3 HV |
692 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[0]); |
693 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[1]); | |
694 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[2]); | |
695 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[3]); | |
696 | ||
697 | /* turn on notification of dual/stereo mode change */ | |
698 | ivtv_vapi(itv, CX2341X_DEC_SET_EVENT_NOTIFICATION, 4, 0, 1, IVTV_IRQ_DEC_AUD_MODE_CHG, -1); | |
699 | ||
700 | /* start playback */ | |
701 | ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, gop_offset, 0); | |
702 | ||
703 | /* Clear the following Interrupt mask bits for decoding */ | |
704 | ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_DECODE); | |
705 | IVTV_DEBUG_IRQ("IRQ Mask is now: 0x%08x\n", itv->irqmask); | |
706 | ||
707 | /* you're live! sit back and await interrupts :) */ | |
708 | atomic_inc(&itv->decoding); | |
709 | return 0; | |
710 | } | |
711 | ||
712 | void ivtv_stop_all_captures(struct ivtv *itv) | |
713 | { | |
714 | int i; | |
715 | ||
716 | for (i = IVTV_MAX_STREAMS - 1; i >= 0; i--) { | |
717 | struct ivtv_stream *s = &itv->streams[i]; | |
718 | ||
719 | if (s->v4l2dev == NULL) | |
720 | continue; | |
721 | if (test_bit(IVTV_F_S_STREAMING, &s->s_flags)) { | |
722 | ivtv_stop_v4l2_encode_stream(s, 0); | |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) | |
728 | { | |
729 | struct ivtv *itv = s->itv; | |
730 | DECLARE_WAITQUEUE(wait, current); | |
731 | int cap_type; | |
1a0adaf3 | 732 | int stopmode; |
1a0adaf3 HV |
733 | |
734 | if (s->v4l2dev == NULL) | |
735 | return -EINVAL; | |
736 | ||
737 | /* This function assumes that you are allowed to stop the capture | |
738 | and that we are actually capturing */ | |
739 | ||
740 | IVTV_DEBUG_INFO("Stop Capture\n"); | |
741 | ||
742 | if (s->type == IVTV_DEC_STREAM_TYPE_VOUT) | |
743 | return 0; | |
744 | if (atomic_read(&itv->capturing) == 0) | |
745 | return 0; | |
746 | ||
747 | switch (s->type) { | |
748 | case IVTV_ENC_STREAM_TYPE_YUV: | |
749 | cap_type = 1; | |
750 | break; | |
751 | case IVTV_ENC_STREAM_TYPE_PCM: | |
752 | cap_type = 1; | |
753 | break; | |
754 | case IVTV_ENC_STREAM_TYPE_VBI: | |
755 | cap_type = 1; | |
756 | break; | |
757 | case IVTV_ENC_STREAM_TYPE_MPG: | |
758 | default: | |
759 | cap_type = 0; | |
760 | break; | |
761 | } | |
762 | ||
763 | /* Stop Capture Mode */ | |
764 | if (s->type == IVTV_ENC_STREAM_TYPE_MPG && gop_end) { | |
765 | stopmode = 0; | |
766 | } else { | |
767 | stopmode = 1; | |
768 | } | |
769 | ||
770 | /* end_capture */ | |
771 | /* when: 0 = end of GOP 1 = NOW!, type: 0 = mpeg, subtype: 3 = video+audio */ | |
772 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, stopmode, cap_type, s->subtype); | |
773 | ||
1a0adaf3 HV |
774 | if (!test_bit(IVTV_F_S_PASSTHROUGH, &s->s_flags)) { |
775 | if (s->type == IVTV_ENC_STREAM_TYPE_MPG && gop_end) { | |
776 | /* only run these if we're shutting down the last cap */ | |
777 | unsigned long duration; | |
559e196a | 778 | unsigned long then = jiffies; |
1a0adaf3 | 779 | |
fd8b281a | 780 | add_wait_queue(&itv->eos_waitq, &wait); |
1a0adaf3 HV |
781 | |
782 | set_current_state(TASK_INTERRUPTIBLE); | |
783 | ||
784 | /* wait 2s for EOS interrupt */ | |
201700d3 MCC |
785 | while (!test_bit(IVTV_F_I_EOS, &itv->i_flags) && |
786 | jiffies < then + msecs_to_jiffies (2000)) { | |
787 | schedule_timeout(msecs_to_jiffies(10)); | |
1a0adaf3 HV |
788 | } |
789 | ||
790 | /* To convert jiffies to ms, we must multiply by 1000 | |
791 | * and divide by HZ. To avoid runtime division, we | |
792 | * convert this to multiplication by 1000/HZ. | |
793 | * Since integer division truncates, we get the best | |
794 | * accuracy if we do a rounding calculation of the constant. | |
795 | * Think of the case where HZ is 1024. | |
796 | */ | |
797 | duration = ((1000 + HZ / 2) / HZ) * (jiffies - then); | |
798 | ||
799 | if (!test_bit(IVTV_F_I_EOS, &itv->i_flags)) { | |
800 | IVTV_DEBUG_WARN("%s: EOS interrupt not received! stopping anyway.\n", s->name); | |
801 | IVTV_DEBUG_WARN("%s: waited %lu ms.\n", s->name, duration); | |
802 | } else { | |
803 | IVTV_DEBUG_INFO("%s: EOS took %lu ms to occur.\n", s->name, duration); | |
804 | } | |
805 | set_current_state(TASK_RUNNING); | |
fd8b281a | 806 | remove_wait_queue(&itv->eos_waitq, &wait); |
559e196a | 807 | set_bit(IVTV_F_S_STREAMOFF, &s->s_flags); |
1a0adaf3 HV |
808 | } |
809 | ||
3562c43b HV |
810 | /* Handle any pending interrupts */ |
811 | ivtv_msleep_timeout(100, 1); | |
1a0adaf3 HV |
812 | } |
813 | ||
814 | atomic_dec(&itv->capturing); | |
815 | ||
816 | /* Clear capture and no-read bits */ | |
817 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); | |
818 | ||
819 | if (s->type == IVTV_ENC_STREAM_TYPE_VBI) | |
820 | ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); | |
821 | ||
822 | if (atomic_read(&itv->capturing) > 0) { | |
823 | return 0; | |
824 | } | |
825 | ||
826 | /* Set the following Interrupt mask bits for capture */ | |
827 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); | |
e17a06ba | 828 | del_timer(&itv->dma_timer); |
1a0adaf3 | 829 | |
f8859691 HV |
830 | /* event notification (off) */ |
831 | if (test_and_clear_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { | |
832 | /* type: 0 = refresh */ | |
833 | /* on/off: 0 = off, intr: 0x10000000, mbox_id: -1: none */ | |
834 | ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_ENC_VIM_RST, -1); | |
835 | ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); | |
836 | } | |
837 | ||
1a0adaf3 HV |
838 | wake_up(&s->waitq); |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
843 | int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts) | |
844 | { | |
845 | struct ivtv *itv = s->itv; | |
846 | ||
847 | if (s->v4l2dev == NULL) | |
848 | return -EINVAL; | |
849 | ||
850 | if (s->type != IVTV_DEC_STREAM_TYPE_YUV && s->type != IVTV_DEC_STREAM_TYPE_MPG) | |
851 | return -EINVAL; | |
852 | ||
853 | if (!test_bit(IVTV_F_S_STREAMING, &s->s_flags)) | |
854 | return 0; | |
855 | ||
c4385098 | 856 | IVTV_DEBUG_INFO("Stop Decode at %llu, flags: %x\n", (unsigned long long)pts, flags); |
1a0adaf3 HV |
857 | |
858 | /* Stop Decoder */ | |
859 | if (!(flags & VIDEO_CMD_STOP_IMMEDIATELY) || pts) { | |
860 | u32 tmp = 0; | |
861 | ||
862 | /* Wait until the decoder is no longer running */ | |
863 | if (pts) { | |
864 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, | |
865 | 0, (u32)(pts & 0xffffffff), (u32)(pts >> 32)); | |
866 | } | |
867 | while (1) { | |
868 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
869 | ivtv_vapi_result(itv, data, CX2341X_DEC_GET_XFER_INFO, 0); | |
870 | if (s->q_full.buffers + s->q_dma.buffers == 0) { | |
871 | if (tmp == data[3]) | |
872 | break; | |
873 | tmp = data[3]; | |
874 | } | |
201700d3 | 875 | if (ivtv_msleep_timeout(100, 1)) |
1a0adaf3 HV |
876 | break; |
877 | } | |
878 | } | |
879 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, flags & VIDEO_CMD_STOP_TO_BLACK, 0, 0); | |
880 | ||
881 | /* turn off notification of dual/stereo mode change */ | |
882 | ivtv_vapi(itv, CX2341X_DEC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_DEC_AUD_MODE_CHG, -1); | |
883 | ||
884 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_DECODE); | |
e17a06ba | 885 | del_timer(&itv->dma_timer); |
1a0adaf3 HV |
886 | |
887 | clear_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags); | |
888 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); | |
889 | ivtv_flush_queues(s); | |
890 | ||
1a0adaf3 HV |
891 | /* decrement decoding */ |
892 | atomic_dec(&itv->decoding); | |
893 | ||
894 | set_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags); | |
895 | wake_up(&itv->event_waitq); | |
896 | ||
897 | /* wake up wait queues */ | |
898 | wake_up(&s->waitq); | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
903 | int ivtv_passthrough_mode(struct ivtv *itv, int enable) | |
904 | { | |
905 | struct ivtv_stream *yuv_stream = &itv->streams[IVTV_ENC_STREAM_TYPE_YUV]; | |
906 | struct ivtv_stream *dec_stream = &itv->streams[IVTV_DEC_STREAM_TYPE_YUV]; | |
907 | ||
908 | if (yuv_stream->v4l2dev == NULL || dec_stream->v4l2dev == NULL) | |
909 | return -EINVAL; | |
910 | ||
911 | IVTV_DEBUG_INFO("ivtv ioctl: Select passthrough mode\n"); | |
912 | ||
913 | /* Prevent others from starting/stopping streams while we | |
914 | initiate/terminate passthrough mode */ | |
915 | if (enable) { | |
916 | if (itv->output_mode == OUT_PASSTHROUGH) { | |
917 | return 0; | |
918 | } | |
919 | if (ivtv_set_output_mode(itv, OUT_PASSTHROUGH) != OUT_PASSTHROUGH) | |
920 | return -EBUSY; | |
921 | ||
922 | /* Fully initialize stream, and then unflag init */ | |
923 | set_bit(IVTV_F_S_PASSTHROUGH, &dec_stream->s_flags); | |
924 | set_bit(IVTV_F_S_STREAMING, &dec_stream->s_flags); | |
925 | ||
926 | /* Setup YUV Decoder */ | |
927 | ivtv_setup_v4l2_decode_stream(dec_stream); | |
928 | ||
929 | /* Start Decoder */ | |
930 | ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 1); | |
931 | atomic_inc(&itv->decoding); | |
932 | ||
933 | /* Setup capture if not already done */ | |
934 | if (atomic_read(&itv->capturing) == 0) { | |
935 | cx2341x_update(itv, ivtv_api_func, NULL, &itv->params); | |
936 | } | |
937 | ||
938 | /* Start Passthrough Mode */ | |
939 | ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, 2, 11); | |
940 | atomic_inc(&itv->capturing); | |
941 | return 0; | |
942 | } | |
943 | ||
944 | if (itv->output_mode != OUT_PASSTHROUGH) | |
945 | return 0; | |
946 | ||
947 | /* Stop Passthrough Mode */ | |
948 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, 1, 2, 11); | |
949 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, 1, 0, 0); | |
950 | ||
951 | atomic_dec(&itv->capturing); | |
952 | atomic_dec(&itv->decoding); | |
953 | clear_bit(IVTV_F_S_PASSTHROUGH, &dec_stream->s_flags); | |
954 | clear_bit(IVTV_F_S_STREAMING, &dec_stream->s_flags); | |
955 | itv->output_mode = OUT_NONE; | |
956 | ||
957 | return 0; | |
958 | } |