Commit | Line | Data |
---|---|---|
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 | 45 | |
bec43661 | 46 | static const struct v4l2_file_operations ivtv_v4l2_enc_fops = { |
daf20d95 HV |
47 | .owner = THIS_MODULE, |
48 | .read = ivtv_v4l2_read, | |
49 | .write = ivtv_v4l2_write, | |
50 | .open = ivtv_v4l2_open, | |
09882f00 | 51 | .unlocked_ioctl = ivtv_v4l2_ioctl, |
daf20d95 HV |
52 | .release = ivtv_v4l2_close, |
53 | .poll = ivtv_v4l2_enc_poll, | |
1a0adaf3 HV |
54 | }; |
55 | ||
bec43661 | 56 | static const struct v4l2_file_operations ivtv_v4l2_dec_fops = { |
daf20d95 HV |
57 | .owner = THIS_MODULE, |
58 | .read = ivtv_v4l2_read, | |
59 | .write = ivtv_v4l2_write, | |
60 | .open = ivtv_v4l2_open, | |
09882f00 | 61 | .unlocked_ioctl = ivtv_v4l2_ioctl, |
daf20d95 HV |
62 | .release = ivtv_v4l2_close, |
63 | .poll = ivtv_v4l2_dec_poll, | |
1a0adaf3 HV |
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; | |
dd89601d | 76 | int num_offset; |
1a0adaf3 HV |
77 | int dma, pio; |
78 | enum v4l2_buf_type buf_type; | |
bec43661 | 79 | const struct v4l2_file_operations *fops; |
1a0adaf3 HV |
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]; | |
8ac05ae3 | 140 | struct video_device *vdev = s->vdev; |
1a0adaf3 | 141 | |
8ac05ae3 | 142 | /* we need to keep vdev, so restore it afterwards */ |
1a0adaf3 | 143 | memset(s, 0, sizeof(*s)); |
8ac05ae3 | 144 | s->vdev = vdev; |
1a0adaf3 HV |
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]; | |
dd89601d | 172 | int num_offset = ivtv_stream_info[type].num_offset; |
67ec09fd | 173 | int num = itv->instance + ivtv_first_minor + num_offset; |
1a0adaf3 | 174 | |
8ac05ae3 | 175 | /* These four fields are always initialized. If vdev == NULL, then |
1a0adaf3 HV |
176 | this stream is not in use. In that case no other fields but these |
177 | four can be used. */ | |
8ac05ae3 | 178 | s->vdev = NULL; |
1a0adaf3 HV |
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 | ||
1a0adaf3 HV |
189 | /* User explicitly selected 0 buffers for these streams, so don't |
190 | create them. */ | |
18e16f9c | 191 | if (ivtv_stream_info[type].dma != PCI_DMA_NONE && |
313e91e8 | 192 | itv->options.kilobytes[type] == 0) { |
1a0adaf3 HV |
193 | IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name); |
194 | return 0; | |
195 | } | |
196 | ||
197 | ivtv_stream_init(itv, type); | |
198 | ||
199 | /* allocate and initialize the v4l2 video device structure */ | |
8ac05ae3 HV |
200 | s->vdev = video_device_alloc(); |
201 | if (s->vdev == NULL) { | |
1a0adaf3 HV |
202 | IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name); |
203 | return -ENOMEM; | |
204 | } | |
205 | ||
8ac05ae3 HV |
206 | snprintf(s->vdev->name, sizeof(s->vdev->name), "%s %s", |
207 | itv->v4l2_dev.name, s->name); | |
1a0adaf3 | 208 | |
8ac05ae3 HV |
209 | s->vdev->num = num; |
210 | s->vdev->v4l2_dev = &itv->v4l2_dev; | |
211 | s->vdev->fops = ivtv_stream_info[type].fops; | |
212 | s->vdev->release = video_device_release; | |
213 | s->vdev->tvnorms = V4L2_STD_ALL; | |
214 | ivtv_set_funcs(s->vdev); | |
18e16f9c HV |
215 | return 0; |
216 | } | |
217 | ||
218 | /* Initialize v4l2 variables and prepare v4l2 devices */ | |
219 | int ivtv_streams_setup(struct ivtv *itv) | |
220 | { | |
221 | int type; | |
222 | ||
223 | /* Setup V4L2 Devices */ | |
224 | for (type = 0; type < IVTV_MAX_STREAMS; type++) { | |
225 | /* Prepare device */ | |
226 | if (ivtv_prep_dev(itv, type)) | |
227 | break; | |
228 | ||
8ac05ae3 | 229 | if (itv->streams[type].vdev == NULL) |
18e16f9c HV |
230 | continue; |
231 | ||
232 | /* Allocate Stream */ | |
233 | if (ivtv_stream_alloc(&itv->streams[type])) | |
234 | break; | |
1a0adaf3 | 235 | } |
18e16f9c | 236 | if (type == IVTV_MAX_STREAMS) |
1a0adaf3 | 237 | return 0; |
18e16f9c HV |
238 | |
239 | /* One or more streams could not be initialized. Clean 'em all up. */ | |
3f98387e | 240 | ivtv_streams_cleanup(itv, 0); |
18e16f9c HV |
241 | return -ENOMEM; |
242 | } | |
243 | ||
244 | static int ivtv_reg_dev(struct ivtv *itv, int type) | |
245 | { | |
246 | struct ivtv_stream *s = &itv->streams[type]; | |
247 | int vfl_type = ivtv_stream_info[type].vfl_type; | |
dd89601d | 248 | int num; |
18e16f9c | 249 | |
8ac05ae3 | 250 | if (s->vdev == NULL) |
18e16f9c HV |
251 | return 0; |
252 | ||
8ac05ae3 | 253 | num = s->vdev->num; |
dd89601d HV |
254 | /* card number + user defined offset + device offset */ |
255 | if (type != IVTV_ENC_STREAM_TYPE_MPG) { | |
256 | struct ivtv_stream *s_mpg = &itv->streams[IVTV_ENC_STREAM_TYPE_MPG]; | |
257 | ||
8ac05ae3 HV |
258 | if (s_mpg->vdev) |
259 | num = s_mpg->vdev->num + ivtv_stream_info[type].num_offset; | |
dd89601d | 260 | } |
8ac05ae3 | 261 | video_set_drvdata(s->vdev, s); |
dd89601d | 262 | |
18e16f9c | 263 | /* Register device. First try the desired minor, then any free one. */ |
8ac05ae3 | 264 | if (video_register_device(s->vdev, vfl_type, num)) { |
dd89601d HV |
265 | IVTV_ERR("Couldn't register v4l2 device for %s kernel number %d\n", |
266 | s->name, num); | |
8ac05ae3 HV |
267 | video_device_release(s->vdev); |
268 | s->vdev = NULL; | |
18e16f9c | 269 | return -ENOMEM; |
1a0adaf3 | 270 | } |
8ac05ae3 | 271 | num = s->vdev->num; |
1a0adaf3 HV |
272 | |
273 | switch (vfl_type) { | |
274 | case VFL_TYPE_GRABBER: | |
313e91e8 | 275 | IVTV_INFO("Registered device video%d for %s (%d kB)\n", |
dd89601d | 276 | num, s->name, itv->options.kilobytes[type]); |
1a0adaf3 HV |
277 | break; |
278 | case VFL_TYPE_RADIO: | |
279 | IVTV_INFO("Registered device radio%d for %s\n", | |
dd89601d | 280 | num, s->name); |
1a0adaf3 HV |
281 | break; |
282 | case VFL_TYPE_VBI: | |
313e91e8 HV |
283 | if (itv->options.kilobytes[type]) |
284 | IVTV_INFO("Registered device vbi%d for %s (%d kB)\n", | |
dd89601d | 285 | num, s->name, itv->options.kilobytes[type]); |
1a0adaf3 HV |
286 | else |
287 | IVTV_INFO("Registered device vbi%d for %s\n", | |
dd89601d | 288 | num, s->name); |
1a0adaf3 HV |
289 | break; |
290 | } | |
291 | return 0; | |
292 | } | |
293 | ||
18e16f9c HV |
294 | /* Register v4l2 devices */ |
295 | int ivtv_streams_register(struct ivtv *itv) | |
1a0adaf3 HV |
296 | { |
297 | int type; | |
18e16f9c | 298 | int err = 0; |
1a0adaf3 | 299 | |
18e16f9c HV |
300 | /* Register V4L2 devices */ |
301 | for (type = 0; type < IVTV_MAX_STREAMS; type++) | |
302 | err |= ivtv_reg_dev(itv, type); | |
1a0adaf3 | 303 | |
18e16f9c | 304 | if (err == 0) |
1a0adaf3 | 305 | return 0; |
1a0adaf3 HV |
306 | |
307 | /* One or more streams could not be initialized. Clean 'em all up. */ | |
3f98387e | 308 | ivtv_streams_cleanup(itv, 1); |
1a0adaf3 HV |
309 | return -ENOMEM; |
310 | } | |
311 | ||
312 | /* Unregister v4l2 devices */ | |
3f98387e | 313 | void ivtv_streams_cleanup(struct ivtv *itv, int unregister) |
1a0adaf3 HV |
314 | { |
315 | int type; | |
316 | ||
317 | /* Teardown all streams */ | |
318 | for (type = 0; type < IVTV_MAX_STREAMS; type++) { | |
8ac05ae3 | 319 | struct video_device *vdev = itv->streams[type].vdev; |
1a0adaf3 | 320 | |
8ac05ae3 | 321 | itv->streams[type].vdev = NULL; |
1a0adaf3 HV |
322 | if (vdev == NULL) |
323 | continue; | |
324 | ||
325 | ivtv_stream_free(&itv->streams[type]); | |
3f98387e HV |
326 | /* Unregister or release device */ |
327 | if (unregister) | |
328 | video_unregister_device(vdev); | |
329 | else | |
330 | video_device_release(vdev); | |
1a0adaf3 HV |
331 | } |
332 | } | |
333 | ||
334 | static void ivtv_vbi_setup(struct ivtv *itv) | |
335 | { | |
a8b86435 | 336 | int raw = ivtv_raw_vbi(itv); |
1a0adaf3 HV |
337 | u32 data[CX2341X_MBOX_MAX_DATA]; |
338 | int lines; | |
339 | int i; | |
340 | ||
1a0adaf3 HV |
341 | /* Reset VBI */ |
342 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, 0xffff , 0, 0, 0, 0); | |
343 | ||
1a0adaf3 | 344 | /* setup VBI registers */ |
67ec09fd | 345 | v4l2_subdev_call(itv->sd_video, video, s_fmt, &itv->vbi.in); |
1a0adaf3 HV |
346 | |
347 | /* determine number of lines and total number of VBI bytes. | |
348 | A raw line takes 1443 bytes: 2 * 720 + 4 byte frame header - 1 | |
349 | The '- 1' byte is probably an unused U or V byte. Or something... | |
350 | A sliced line takes 51 bytes: 4 byte frame header, 4 byte internal | |
351 | header, 42 data bytes + checksum (to be confirmed) */ | |
352 | if (raw) { | |
353 | lines = itv->vbi.count * 2; | |
354 | } else { | |
355 | lines = itv->is_60hz ? 24 : 38; | |
356 | if (itv->is_60hz && (itv->hw_flags & IVTV_HW_CX25840)) | |
357 | lines += 2; | |
358 | } | |
359 | ||
360 | itv->vbi.enc_size = lines * (raw ? itv->vbi.raw_size : itv->vbi.sliced_size); | |
361 | ||
362 | /* Note: sliced vs raw flag doesn't seem to have any effect | |
363 | TODO: check mode (0x02) value with older ivtv versions. */ | |
364 | data[0] = raw | 0x02 | (0xbd << 8); | |
365 | ||
366 | /* Every X number of frames a VBI interrupt arrives (frames as in 25 or 30 fps) */ | |
367 | data[1] = 1; | |
368 | /* The VBI frames are stored in a ringbuffer with this size (with a VBI frame as unit) */ | |
d526afe0 | 369 | data[2] = raw ? 4 : 4 * (itv->vbi.raw_size / itv->vbi.enc_size); |
1a0adaf3 HV |
370 | /* The start/stop codes determine which VBI lines end up in the raw VBI data area. |
371 | The codes are from table 24 in the saa7115 datasheet. Each raw/sliced/video line | |
372 | is framed with codes FF0000XX where XX is the SAV/EAV (Start/End of Active Video) | |
373 | code. These values for raw VBI are obtained from a driver disassembly. The sliced | |
374 | start/stop codes was deduced from this, but they do not appear in the driver. | |
375 | Other code pairs that I found are: 0x250E6249/0x13545454 and 0x25256262/0x38137F54. | |
376 | However, I have no idea what these values are for. */ | |
377 | if (itv->hw_flags & IVTV_HW_CX25840) { | |
378 | /* Setup VBI for the cx25840 digitizer */ | |
379 | if (raw) { | |
380 | data[3] = 0x20602060; | |
381 | data[4] = 0x30703070; | |
382 | } else { | |
383 | data[3] = 0xB0F0B0F0; | |
384 | data[4] = 0xA0E0A0E0; | |
385 | } | |
386 | /* Lines per frame */ | |
387 | data[5] = lines; | |
388 | /* bytes per line */ | |
389 | data[6] = (raw ? itv->vbi.raw_size : itv->vbi.sliced_size); | |
390 | } else { | |
391 | /* Setup VBI for the saa7115 digitizer */ | |
392 | if (raw) { | |
393 | data[3] = 0x25256262; | |
394 | data[4] = 0x387F7F7F; | |
395 | } else { | |
396 | data[3] = 0xABABECEC; | |
397 | data[4] = 0xB6F1F1F1; | |
398 | } | |
399 | /* Lines per frame */ | |
400 | data[5] = lines; | |
401 | /* bytes per line */ | |
402 | data[6] = itv->vbi.enc_size / lines; | |
403 | } | |
404 | ||
405 | IVTV_DEBUG_INFO( | |
406 | "Setup VBI API header 0x%08x pkts %d buffs %d ln %d sz %d\n", | |
407 | data[0], data[1], data[2], data[5], data[6]); | |
408 | ||
409 | ivtv_api(itv, CX2341X_ENC_SET_VBI_CONFIG, 7, data); | |
410 | ||
411 | /* returns the VBI encoder memory area. */ | |
412 | itv->vbi.enc_start = data[2]; | |
413 | itv->vbi.fpi = data[0]; | |
414 | if (!itv->vbi.fpi) | |
415 | itv->vbi.fpi = 1; | |
416 | ||
fd8b281a HV |
417 | IVTV_DEBUG_INFO("Setup VBI start 0x%08x frames %d fpi %d\n", |
418 | itv->vbi.enc_start, data[1], itv->vbi.fpi); | |
1a0adaf3 HV |
419 | |
420 | /* select VBI lines. | |
421 | Note that the sliced argument seems to have no effect. */ | |
422 | for (i = 2; i <= 24; i++) { | |
423 | int valid; | |
424 | ||
425 | if (itv->is_60hz) { | |
426 | valid = i >= 10 && i < 22; | |
427 | } else { | |
428 | valid = i >= 6 && i < 24; | |
429 | } | |
430 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, i - 1, | |
431 | valid, 0 , 0, 0); | |
432 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, (i - 1) | 0x80000000, | |
433 | valid, 0, 0, 0); | |
434 | } | |
435 | ||
436 | /* Remaining VBI questions: | |
437 | - Is it possible to select particular VBI lines only for inclusion in the MPEG | |
438 | stream? Currently you can only get the first X lines. | |
439 | - Is mixed raw and sliced VBI possible? | |
440 | - What's the meaning of the raw/sliced flag? | |
441 | - What's the meaning of params 2, 3 & 4 of the Select VBI command? */ | |
442 | } | |
443 | ||
444 | int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) | |
445 | { | |
446 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
447 | struct ivtv *itv = s->itv; | |
254d6eb1 | 448 | struct cx2341x_mpeg_params *p = &itv->params; |
1a0adaf3 HV |
449 | int captype = 0, subtype = 0; |
450 | int enable_passthrough = 0; | |
451 | ||
8ac05ae3 | 452 | if (s->vdev == NULL) |
1a0adaf3 HV |
453 | return -EINVAL; |
454 | ||
455 | IVTV_DEBUG_INFO("Start encoder stream %s\n", s->name); | |
456 | ||
457 | switch (s->type) { | |
458 | case IVTV_ENC_STREAM_TYPE_MPG: | |
459 | captype = 0; | |
460 | subtype = 3; | |
461 | ||
462 | /* Stop Passthrough */ | |
463 | if (itv->output_mode == OUT_PASSTHROUGH) { | |
464 | ivtv_passthrough_mode(itv, 0); | |
465 | enable_passthrough = 1; | |
466 | } | |
467 | itv->mpg_data_received = itv->vbi_data_inserted = 0; | |
468 | itv->dualwatch_jiffies = jiffies; | |
254d6eb1 | 469 | itv->dualwatch_stereo_mode = p->audio_properties & 0x0300; |
1a0adaf3 HV |
470 | itv->search_pack_header = 0; |
471 | break; | |
472 | ||
473 | case IVTV_ENC_STREAM_TYPE_YUV: | |
474 | if (itv->output_mode == OUT_PASSTHROUGH) { | |
475 | captype = 2; | |
476 | subtype = 11; /* video+audio+decoder */ | |
477 | break; | |
478 | } | |
479 | captype = 1; | |
480 | subtype = 1; | |
481 | break; | |
482 | case IVTV_ENC_STREAM_TYPE_PCM: | |
483 | captype = 1; | |
484 | subtype = 2; | |
485 | break; | |
486 | case IVTV_ENC_STREAM_TYPE_VBI: | |
487 | captype = 1; | |
488 | subtype = 4; | |
489 | ||
490 | itv->vbi.frame = 0; | |
491 | itv->vbi.inserted_frame = 0; | |
492 | memset(itv->vbi.sliced_mpeg_size, | |
493 | 0, sizeof(itv->vbi.sliced_mpeg_size)); | |
494 | break; | |
495 | default: | |
496 | return -EINVAL; | |
497 | } | |
498 | s->subtype = subtype; | |
499 | s->buffers_stolen = 0; | |
500 | ||
1a0adaf3 HV |
501 | /* Clear Streamoff flags in case left from last capture */ |
502 | clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); | |
503 | ||
504 | if (atomic_read(&itv->capturing) == 0) { | |
fd8b281a HV |
505 | int digitizer; |
506 | ||
1a0adaf3 HV |
507 | /* Always use frame based mode. Experiments have demonstrated that byte |
508 | stream based mode results in dropped frames and corruption. Not often, | |
509 | but occasionally. Many thanks go to Leonard Orb who spent a lot of | |
510 | effort and time trying to trace the cause of the drop outs. */ | |
511 | /* 1 frame per DMA */ | |
512 | /*ivtv_vapi(itv, CX2341X_ENC_SET_DMA_BLOCK_SIZE, 2, 128, 0); */ | |
513 | ivtv_vapi(itv, CX2341X_ENC_SET_DMA_BLOCK_SIZE, 2, 1, 1); | |
514 | ||
515 | /* Stuff from Windows, we don't know what it is */ | |
516 | ivtv_vapi(itv, CX2341X_ENC_SET_VERT_CROP_LINE, 1, 0); | |
517 | /* According to the docs, this should be correct. However, this is | |
518 | untested. I don't dare enable this without having tested it. | |
519 | Only very few old cards actually have this hardware combination. | |
520 | ivtv_vapi(itv, CX2341X_ENC_SET_VERT_CROP_LINE, 1, | |
521 | ((itv->hw_flags & IVTV_HW_SAA7114) && itv->is_60hz) ? 10001 : 0); | |
522 | */ | |
523 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 3, !itv->has_cx23415); | |
524 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 8, 0); | |
525 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 4, 1); | |
526 | ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12); | |
527 | ||
528 | /* assign placeholder */ | |
529 | ivtv_vapi(itv, CX2341X_ENC_SET_PLACEHOLDER, 12, | |
530 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
531 | ||
fd8b281a HV |
532 | if (itv->card->hw_all & (IVTV_HW_SAA7115 | IVTV_HW_SAA717X)) |
533 | digitizer = 0xF1; | |
534 | else if (itv->card->hw_all & IVTV_HW_SAA7114) | |
535 | digitizer = 0xEF; | |
536 | else /* cx25840 */ | |
537 | digitizer = 0x140; | |
538 | ||
539 | ivtv_vapi(itv, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, digitizer, digitizer); | |
1a0adaf3 HV |
540 | |
541 | /* Setup VBI */ | |
542 | if (itv->v4l2_cap & V4L2_CAP_VBI_CAPTURE) { | |
543 | ivtv_vbi_setup(itv); | |
544 | } | |
545 | ||
546 | /* assign program index info. Mask 7: select I/P/B, Num_req: 400 max */ | |
547 | ivtv_vapi_result(itv, data, CX2341X_ENC_SET_PGM_INDEX_INFO, 2, 7, 400); | |
548 | itv->pgm_info_offset = data[0]; | |
549 | itv->pgm_info_num = data[1]; | |
550 | itv->pgm_info_write_idx = 0; | |
551 | itv->pgm_info_read_idx = 0; | |
552 | ||
553 | IVTV_DEBUG_INFO("PGM Index at 0x%08x with %d elements\n", | |
554 | itv->pgm_info_offset, itv->pgm_info_num); | |
555 | ||
556 | /* Setup API for Stream */ | |
254d6eb1 HV |
557 | cx2341x_update(itv, ivtv_api_func, NULL, p); |
558 | ||
559 | /* mute if capturing radio */ | |
560 | if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) | |
561 | ivtv_vapi(itv, CX2341X_ENC_MUTE_VIDEO, 1, | |
562 | 1 | (p->video_mute_yuv << 8)); | |
1a0adaf3 HV |
563 | } |
564 | ||
565 | /* Vsync Setup */ | |
566 | if (itv->has_cx23415 && !test_and_set_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { | |
567 | /* event notification (on) */ | |
568 | ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 1, IVTV_IRQ_ENC_VIM_RST, -1); | |
569 | ivtv_clear_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); | |
570 | } | |
571 | ||
572 | if (atomic_read(&itv->capturing) == 0) { | |
573 | /* Clear all Pending Interrupts */ | |
574 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); | |
575 | ||
576 | clear_bit(IVTV_F_I_EOS, &itv->i_flags); | |
577 | ||
578 | /* Initialize Digitizer for Capture */ | |
67ec09fd | 579 | v4l2_subdev_call(itv->sd_video, video, s_stream, 0); |
3562c43b | 580 | ivtv_msleep_timeout(300, 1); |
1a0adaf3 | 581 | ivtv_vapi(itv, CX2341X_ENC_INITIALIZE_INPUT, 0); |
67ec09fd | 582 | v4l2_subdev_call(itv->sd_video, video, s_stream, 1); |
1a0adaf3 HV |
583 | } |
584 | ||
585 | /* begin_capture */ | |
586 | if (ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, captype, subtype)) | |
587 | { | |
588 | IVTV_DEBUG_WARN( "Error starting capture!\n"); | |
589 | return -EINVAL; | |
590 | } | |
591 | ||
592 | /* Start Passthrough */ | |
593 | if (enable_passthrough) { | |
594 | ivtv_passthrough_mode(itv, 1); | |
595 | } | |
596 | ||
597 | if (s->type == IVTV_ENC_STREAM_TYPE_VBI) | |
598 | ivtv_clear_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); | |
599 | else | |
600 | ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); | |
601 | ||
602 | /* you're live! sit back and await interrupts :) */ | |
603 | atomic_inc(&itv->capturing); | |
604 | return 0; | |
605 | } | |
606 | ||
607 | static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s) | |
608 | { | |
609 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
610 | struct ivtv *itv = s->itv; | |
254d6eb1 | 611 | struct cx2341x_mpeg_params *p = &itv->params; |
1a0adaf3 HV |
612 | int datatype; |
613 | ||
8ac05ae3 | 614 | if (s->vdev == NULL) |
1a0adaf3 HV |
615 | return -EINVAL; |
616 | ||
617 | IVTV_DEBUG_INFO("Setting some initial decoder settings\n"); | |
618 | ||
1a0adaf3 HV |
619 | /* set audio mode to left/stereo for dual/stereo mode. */ |
620 | ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); | |
621 | ||
622 | /* set number of internal decoder buffers */ | |
623 | ivtv_vapi(itv, CX2341X_DEC_SET_DISPLAY_BUFFERS, 1, 0); | |
624 | ||
625 | /* prebuffering */ | |
626 | ivtv_vapi(itv, CX2341X_DEC_SET_PREBUFFERING, 1, 1); | |
627 | ||
628 | /* extract from user packets */ | |
629 | ivtv_vapi_result(itv, data, CX2341X_DEC_EXTRACT_VBI, 1, 1); | |
630 | itv->vbi.dec_start = data[0]; | |
631 | ||
632 | IVTV_DEBUG_INFO("Decoder VBI RE-Insert start 0x%08x size 0x%08x\n", | |
633 | itv->vbi.dec_start, data[1]); | |
634 | ||
635 | /* set decoder source settings */ | |
636 | /* Data type: 0 = mpeg from host, | |
637 | 1 = yuv from encoder, | |
638 | 2 = yuv_from_host */ | |
639 | switch (s->type) { | |
640 | case IVTV_DEC_STREAM_TYPE_YUV: | |
641 | datatype = itv->output_mode == OUT_PASSTHROUGH ? 1 : 2; | |
642 | IVTV_DEBUG_INFO("Setup DEC YUV Stream data[0] = %d\n", datatype); | |
643 | break; | |
644 | case IVTV_DEC_STREAM_TYPE_MPG: | |
645 | default: | |
646 | datatype = 0; | |
647 | break; | |
648 | } | |
649 | if (ivtv_vapi(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, datatype, | |
254d6eb1 | 650 | p->width, p->height, p->audio_properties)) { |
5a338c38 | 651 | IVTV_DEBUG_WARN("Couldn't initialize decoder source\n"); |
1a0adaf3 HV |
652 | } |
653 | return 0; | |
654 | } | |
655 | ||
656 | int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset) | |
657 | { | |
658 | struct ivtv *itv = s->itv; | |
659 | ||
8ac05ae3 | 660 | if (s->vdev == NULL) |
1a0adaf3 HV |
661 | return -EINVAL; |
662 | ||
663 | if (test_and_set_bit(IVTV_F_S_STREAMING, &s->s_flags)) | |
664 | return 0; /* already started */ | |
665 | ||
666 | IVTV_DEBUG_INFO("Starting decode stream %s (gop_offset %d)\n", s->name, gop_offset); | |
667 | ||
1a0adaf3 HV |
668 | ivtv_setup_v4l2_decode_stream(s); |
669 | ||
670 | /* set dma size to 65536 bytes */ | |
671 | ivtv_vapi(itv, CX2341X_DEC_SET_DMA_BLOCK_SIZE, 1, 65536); | |
672 | ||
77aded6b | 673 | /* Clear Streamoff */ |
1a0adaf3 HV |
674 | clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); |
675 | ||
676 | /* Zero out decoder counters */ | |
33c0fcad HV |
677 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[0]); |
678 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[1]); | |
679 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[2]); | |
680 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[3]); | |
1a0adaf3 HV |
681 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[0]); |
682 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[1]); | |
683 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[2]); | |
684 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[3]); | |
685 | ||
686 | /* turn on notification of dual/stereo mode change */ | |
687 | ivtv_vapi(itv, CX2341X_DEC_SET_EVENT_NOTIFICATION, 4, 0, 1, IVTV_IRQ_DEC_AUD_MODE_CHG, -1); | |
688 | ||
689 | /* start playback */ | |
690 | ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, gop_offset, 0); | |
691 | ||
692 | /* Clear the following Interrupt mask bits for decoding */ | |
693 | ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_DECODE); | |
694 | IVTV_DEBUG_IRQ("IRQ Mask is now: 0x%08x\n", itv->irqmask); | |
695 | ||
696 | /* you're live! sit back and await interrupts :) */ | |
697 | atomic_inc(&itv->decoding); | |
698 | return 0; | |
699 | } | |
700 | ||
701 | void ivtv_stop_all_captures(struct ivtv *itv) | |
702 | { | |
703 | int i; | |
704 | ||
705 | for (i = IVTV_MAX_STREAMS - 1; i >= 0; i--) { | |
706 | struct ivtv_stream *s = &itv->streams[i]; | |
707 | ||
8ac05ae3 | 708 | if (s->vdev == NULL) |
1a0adaf3 HV |
709 | continue; |
710 | if (test_bit(IVTV_F_S_STREAMING, &s->s_flags)) { | |
711 | ivtv_stop_v4l2_encode_stream(s, 0); | |
712 | } | |
713 | } | |
714 | } | |
715 | ||
716 | int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) | |
717 | { | |
718 | struct ivtv *itv = s->itv; | |
719 | DECLARE_WAITQUEUE(wait, current); | |
720 | int cap_type; | |
1a0adaf3 | 721 | int stopmode; |
1a0adaf3 | 722 | |
8ac05ae3 | 723 | if (s->vdev == NULL) |
1a0adaf3 HV |
724 | return -EINVAL; |
725 | ||
726 | /* This function assumes that you are allowed to stop the capture | |
727 | and that we are actually capturing */ | |
728 | ||
729 | IVTV_DEBUG_INFO("Stop Capture\n"); | |
730 | ||
731 | if (s->type == IVTV_DEC_STREAM_TYPE_VOUT) | |
732 | return 0; | |
733 | if (atomic_read(&itv->capturing) == 0) | |
734 | return 0; | |
735 | ||
736 | switch (s->type) { | |
737 | case IVTV_ENC_STREAM_TYPE_YUV: | |
738 | cap_type = 1; | |
739 | break; | |
740 | case IVTV_ENC_STREAM_TYPE_PCM: | |
741 | cap_type = 1; | |
742 | break; | |
743 | case IVTV_ENC_STREAM_TYPE_VBI: | |
744 | cap_type = 1; | |
745 | break; | |
746 | case IVTV_ENC_STREAM_TYPE_MPG: | |
747 | default: | |
748 | cap_type = 0; | |
749 | break; | |
750 | } | |
751 | ||
752 | /* Stop Capture Mode */ | |
753 | if (s->type == IVTV_ENC_STREAM_TYPE_MPG && gop_end) { | |
754 | stopmode = 0; | |
755 | } else { | |
756 | stopmode = 1; | |
757 | } | |
758 | ||
759 | /* end_capture */ | |
760 | /* when: 0 = end of GOP 1 = NOW!, type: 0 = mpeg, subtype: 3 = video+audio */ | |
761 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, stopmode, cap_type, s->subtype); | |
762 | ||
1a0adaf3 HV |
763 | if (!test_bit(IVTV_F_S_PASSTHROUGH, &s->s_flags)) { |
764 | if (s->type == IVTV_ENC_STREAM_TYPE_MPG && gop_end) { | |
765 | /* only run these if we're shutting down the last cap */ | |
766 | unsigned long duration; | |
559e196a | 767 | unsigned long then = jiffies; |
1a0adaf3 | 768 | |
fd8b281a | 769 | add_wait_queue(&itv->eos_waitq, &wait); |
1a0adaf3 HV |
770 | |
771 | set_current_state(TASK_INTERRUPTIBLE); | |
772 | ||
773 | /* wait 2s for EOS interrupt */ | |
201700d3 | 774 | while (!test_bit(IVTV_F_I_EOS, &itv->i_flags) && |
168c626c JL |
775 | time_before(jiffies, |
776 | then + msecs_to_jiffies(2000))) { | |
201700d3 | 777 | schedule_timeout(msecs_to_jiffies(10)); |
1a0adaf3 HV |
778 | } |
779 | ||
780 | /* To convert jiffies to ms, we must multiply by 1000 | |
781 | * and divide by HZ. To avoid runtime division, we | |
782 | * convert this to multiplication by 1000/HZ. | |
783 | * Since integer division truncates, we get the best | |
784 | * accuracy if we do a rounding calculation of the constant. | |
785 | * Think of the case where HZ is 1024. | |
786 | */ | |
787 | duration = ((1000 + HZ / 2) / HZ) * (jiffies - then); | |
788 | ||
789 | if (!test_bit(IVTV_F_I_EOS, &itv->i_flags)) { | |
790 | IVTV_DEBUG_WARN("%s: EOS interrupt not received! stopping anyway.\n", s->name); | |
791 | IVTV_DEBUG_WARN("%s: waited %lu ms.\n", s->name, duration); | |
792 | } else { | |
793 | IVTV_DEBUG_INFO("%s: EOS took %lu ms to occur.\n", s->name, duration); | |
794 | } | |
795 | set_current_state(TASK_RUNNING); | |
fd8b281a | 796 | remove_wait_queue(&itv->eos_waitq, &wait); |
559e196a | 797 | set_bit(IVTV_F_S_STREAMOFF, &s->s_flags); |
1a0adaf3 HV |
798 | } |
799 | ||
3562c43b HV |
800 | /* Handle any pending interrupts */ |
801 | ivtv_msleep_timeout(100, 1); | |
1a0adaf3 HV |
802 | } |
803 | ||
804 | atomic_dec(&itv->capturing); | |
805 | ||
806 | /* Clear capture and no-read bits */ | |
807 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); | |
808 | ||
809 | if (s->type == IVTV_ENC_STREAM_TYPE_VBI) | |
810 | ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); | |
811 | ||
812 | if (atomic_read(&itv->capturing) > 0) { | |
813 | return 0; | |
814 | } | |
815 | ||
816 | /* Set the following Interrupt mask bits for capture */ | |
817 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); | |
e17a06ba | 818 | del_timer(&itv->dma_timer); |
1a0adaf3 | 819 | |
f8859691 HV |
820 | /* event notification (off) */ |
821 | if (test_and_clear_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { | |
822 | /* type: 0 = refresh */ | |
823 | /* on/off: 0 = off, intr: 0x10000000, mbox_id: -1: none */ | |
824 | ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_ENC_VIM_RST, -1); | |
825 | ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); | |
826 | } | |
827 | ||
1a0adaf3 HV |
828 | wake_up(&s->waitq); |
829 | ||
830 | return 0; | |
831 | } | |
832 | ||
833 | int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts) | |
834 | { | |
835 | struct ivtv *itv = s->itv; | |
836 | ||
8ac05ae3 | 837 | if (s->vdev == NULL) |
1a0adaf3 HV |
838 | return -EINVAL; |
839 | ||
840 | if (s->type != IVTV_DEC_STREAM_TYPE_YUV && s->type != IVTV_DEC_STREAM_TYPE_MPG) | |
841 | return -EINVAL; | |
842 | ||
843 | if (!test_bit(IVTV_F_S_STREAMING, &s->s_flags)) | |
844 | return 0; | |
845 | ||
c4385098 | 846 | IVTV_DEBUG_INFO("Stop Decode at %llu, flags: %x\n", (unsigned long long)pts, flags); |
1a0adaf3 HV |
847 | |
848 | /* Stop Decoder */ | |
849 | if (!(flags & VIDEO_CMD_STOP_IMMEDIATELY) || pts) { | |
850 | u32 tmp = 0; | |
851 | ||
852 | /* Wait until the decoder is no longer running */ | |
853 | if (pts) { | |
854 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, | |
855 | 0, (u32)(pts & 0xffffffff), (u32)(pts >> 32)); | |
856 | } | |
857 | while (1) { | |
858 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
859 | ivtv_vapi_result(itv, data, CX2341X_DEC_GET_XFER_INFO, 0); | |
860 | if (s->q_full.buffers + s->q_dma.buffers == 0) { | |
861 | if (tmp == data[3]) | |
862 | break; | |
863 | tmp = data[3]; | |
864 | } | |
201700d3 | 865 | if (ivtv_msleep_timeout(100, 1)) |
1a0adaf3 HV |
866 | break; |
867 | } | |
868 | } | |
869 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, flags & VIDEO_CMD_STOP_TO_BLACK, 0, 0); | |
870 | ||
871 | /* turn off notification of dual/stereo mode change */ | |
872 | ivtv_vapi(itv, CX2341X_DEC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_DEC_AUD_MODE_CHG, -1); | |
873 | ||
874 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_DECODE); | |
e17a06ba | 875 | del_timer(&itv->dma_timer); |
1a0adaf3 HV |
876 | |
877 | clear_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags); | |
878 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); | |
879 | ivtv_flush_queues(s); | |
880 | ||
1a0adaf3 HV |
881 | /* decrement decoding */ |
882 | atomic_dec(&itv->decoding); | |
883 | ||
884 | set_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags); | |
885 | wake_up(&itv->event_waitq); | |
886 | ||
887 | /* wake up wait queues */ | |
888 | wake_up(&s->waitq); | |
889 | ||
890 | return 0; | |
891 | } | |
892 | ||
893 | int ivtv_passthrough_mode(struct ivtv *itv, int enable) | |
894 | { | |
895 | struct ivtv_stream *yuv_stream = &itv->streams[IVTV_ENC_STREAM_TYPE_YUV]; | |
896 | struct ivtv_stream *dec_stream = &itv->streams[IVTV_DEC_STREAM_TYPE_YUV]; | |
897 | ||
8ac05ae3 | 898 | if (yuv_stream->vdev == NULL || dec_stream->vdev == NULL) |
1a0adaf3 HV |
899 | return -EINVAL; |
900 | ||
901 | IVTV_DEBUG_INFO("ivtv ioctl: Select passthrough mode\n"); | |
902 | ||
903 | /* Prevent others from starting/stopping streams while we | |
904 | initiate/terminate passthrough mode */ | |
905 | if (enable) { | |
906 | if (itv->output_mode == OUT_PASSTHROUGH) { | |
907 | return 0; | |
908 | } | |
909 | if (ivtv_set_output_mode(itv, OUT_PASSTHROUGH) != OUT_PASSTHROUGH) | |
910 | return -EBUSY; | |
911 | ||
912 | /* Fully initialize stream, and then unflag init */ | |
913 | set_bit(IVTV_F_S_PASSTHROUGH, &dec_stream->s_flags); | |
914 | set_bit(IVTV_F_S_STREAMING, &dec_stream->s_flags); | |
915 | ||
916 | /* Setup YUV Decoder */ | |
917 | ivtv_setup_v4l2_decode_stream(dec_stream); | |
918 | ||
919 | /* Start Decoder */ | |
920 | ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 1); | |
921 | atomic_inc(&itv->decoding); | |
922 | ||
923 | /* Setup capture if not already done */ | |
924 | if (atomic_read(&itv->capturing) == 0) { | |
925 | cx2341x_update(itv, ivtv_api_func, NULL, &itv->params); | |
926 | } | |
927 | ||
928 | /* Start Passthrough Mode */ | |
929 | ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, 2, 11); | |
930 | atomic_inc(&itv->capturing); | |
931 | return 0; | |
932 | } | |
933 | ||
934 | if (itv->output_mode != OUT_PASSTHROUGH) | |
935 | return 0; | |
936 | ||
937 | /* Stop Passthrough Mode */ | |
938 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, 1, 2, 11); | |
939 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, 1, 0, 0); | |
940 | ||
941 | atomic_dec(&itv->capturing); | |
942 | atomic_dec(&itv->decoding); | |
943 | clear_bit(IVTV_F_S_PASSTHROUGH, &dec_stream->s_flags); | |
944 | clear_bit(IVTV_F_S_STREAMING, &dec_stream->s_flags); | |
945 | itv->output_mode = OUT_NONE; | |
946 | ||
947 | return 0; | |
948 | } |