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Commit | Line | Data |
---|---|---|
1c1e45d1 HV |
1 | /* |
2 | * cx18 init/start/stop/exit stream functions | |
3 | * | |
4 | * Derived from ivtv-streams.c | |
5 | * | |
6 | * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> | |
1ed9dcc8 | 7 | * Copyright (C) 2008 Andy Walls <awalls@radix.net> |
1c1e45d1 HV |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
22 | * 02111-1307 USA | |
23 | */ | |
24 | ||
25 | #include "cx18-driver.h" | |
b1526421 | 26 | #include "cx18-io.h" |
1c1e45d1 HV |
27 | #include "cx18-fileops.h" |
28 | #include "cx18-mailbox.h" | |
29 | #include "cx18-i2c.h" | |
30 | #include "cx18-queue.h" | |
31 | #include "cx18-ioctl.h" | |
32 | #include "cx18-streams.h" | |
33 | #include "cx18-cards.h" | |
34 | #include "cx18-scb.h" | |
35 | #include "cx18-av-core.h" | |
36 | #include "cx18-dvb.h" | |
37 | ||
38 | #define CX18_DSP0_INTERRUPT_MASK 0xd0004C | |
39 | ||
40 | static struct file_operations cx18_v4l2_enc_fops = { | |
daf20d95 HV |
41 | .owner = THIS_MODULE, |
42 | .read = cx18_v4l2_read, | |
43 | .open = cx18_v4l2_open, | |
3b6fe58f | 44 | /* FIXME change to video_ioctl2 if serialization lock can be removed */ |
daf20d95 HV |
45 | .ioctl = cx18_v4l2_ioctl, |
46 | .compat_ioctl = v4l_compat_ioctl32, | |
47 | .release = cx18_v4l2_close, | |
48 | .poll = cx18_v4l2_enc_poll, | |
1c1e45d1 HV |
49 | }; |
50 | ||
51 | /* offset from 0 to register ts v4l2 minors on */ | |
52 | #define CX18_V4L2_ENC_TS_OFFSET 16 | |
53 | /* offset from 0 to register pcm v4l2 minors on */ | |
54 | #define CX18_V4L2_ENC_PCM_OFFSET 24 | |
55 | /* offset from 0 to register yuv v4l2 minors on */ | |
56 | #define CX18_V4L2_ENC_YUV_OFFSET 32 | |
57 | ||
58 | static struct { | |
59 | const char *name; | |
60 | int vfl_type; | |
dd89601d | 61 | int num_offset; |
1c1e45d1 HV |
62 | int dma; |
63 | enum v4l2_buf_type buf_type; | |
64 | struct file_operations *fops; | |
65 | } cx18_stream_info[] = { | |
66 | { /* CX18_ENC_STREAM_TYPE_MPG */ | |
67 | "encoder MPEG", | |
68 | VFL_TYPE_GRABBER, 0, | |
69 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
70 | &cx18_v4l2_enc_fops | |
71 | }, | |
72 | { /* CX18_ENC_STREAM_TYPE_TS */ | |
73 | "TS", | |
74 | VFL_TYPE_GRABBER, -1, | |
75 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
76 | &cx18_v4l2_enc_fops | |
77 | }, | |
78 | { /* CX18_ENC_STREAM_TYPE_YUV */ | |
79 | "encoder YUV", | |
80 | VFL_TYPE_GRABBER, CX18_V4L2_ENC_YUV_OFFSET, | |
81 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
82 | &cx18_v4l2_enc_fops | |
83 | }, | |
84 | { /* CX18_ENC_STREAM_TYPE_VBI */ | |
85 | "encoder VBI", | |
86 | VFL_TYPE_VBI, 0, | |
87 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VBI_CAPTURE, | |
88 | &cx18_v4l2_enc_fops | |
89 | }, | |
90 | { /* CX18_ENC_STREAM_TYPE_PCM */ | |
91 | "encoder PCM audio", | |
92 | VFL_TYPE_GRABBER, CX18_V4L2_ENC_PCM_OFFSET, | |
93 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_PRIVATE, | |
94 | &cx18_v4l2_enc_fops | |
95 | }, | |
96 | { /* CX18_ENC_STREAM_TYPE_IDX */ | |
97 | "encoder IDX", | |
98 | VFL_TYPE_GRABBER, -1, | |
99 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
100 | &cx18_v4l2_enc_fops | |
101 | }, | |
102 | { /* CX18_ENC_STREAM_TYPE_RAD */ | |
103 | "encoder radio", | |
104 | VFL_TYPE_RADIO, 0, | |
105 | PCI_DMA_NONE, V4L2_BUF_TYPE_PRIVATE, | |
106 | &cx18_v4l2_enc_fops | |
107 | }, | |
108 | }; | |
109 | ||
110 | static void cx18_stream_init(struct cx18 *cx, int type) | |
111 | { | |
112 | struct cx18_stream *s = &cx->streams[type]; | |
113 | struct video_device *dev = s->v4l2dev; | |
114 | u32 max_size = cx->options.megabytes[type] * 1024 * 1024; | |
115 | ||
116 | /* we need to keep v4l2dev, so restore it afterwards */ | |
117 | memset(s, 0, sizeof(*s)); | |
118 | s->v4l2dev = dev; | |
119 | ||
120 | /* initialize cx18_stream fields */ | |
121 | s->cx = cx; | |
122 | s->type = type; | |
123 | s->name = cx18_stream_info[type].name; | |
d3c5e707 | 124 | s->handle = CX18_INVALID_TASK_HANDLE; |
1c1e45d1 HV |
125 | |
126 | s->dma = cx18_stream_info[type].dma; | |
127 | s->buf_size = cx->stream_buf_size[type]; | |
128 | if (s->buf_size) | |
129 | s->buffers = max_size / s->buf_size; | |
130 | if (s->buffers > 63) { | |
131 | /* Each stream has a maximum of 63 buffers, | |
132 | ensure we do not exceed that. */ | |
133 | s->buffers = 63; | |
134 | s->buf_size = (max_size / s->buffers) & ~0xfff; | |
135 | } | |
f576ceef | 136 | mutex_init(&s->qlock); |
1c1e45d1 HV |
137 | init_waitqueue_head(&s->waitq); |
138 | s->id = -1; | |
139 | cx18_queue_init(&s->q_free); | |
140 | cx18_queue_init(&s->q_full); | |
1c1e45d1 HV |
141 | } |
142 | ||
143 | static int cx18_prep_dev(struct cx18 *cx, int type) | |
144 | { | |
145 | struct cx18_stream *s = &cx->streams[type]; | |
146 | u32 cap = cx->v4l2_cap; | |
dd89601d HV |
147 | int num_offset = cx18_stream_info[type].num_offset; |
148 | int num = cx->num + cx18_first_minor + num_offset; | |
1c1e45d1 HV |
149 | |
150 | /* These four fields are always initialized. If v4l2dev == NULL, then | |
151 | this stream is not in use. In that case no other fields but these | |
152 | four can be used. */ | |
153 | s->v4l2dev = NULL; | |
154 | s->cx = cx; | |
155 | s->type = type; | |
156 | s->name = cx18_stream_info[type].name; | |
157 | ||
158 | /* Check whether the radio is supported */ | |
159 | if (type == CX18_ENC_STREAM_TYPE_RAD && !(cap & V4L2_CAP_RADIO)) | |
160 | return 0; | |
161 | ||
162 | /* Check whether VBI is supported */ | |
163 | if (type == CX18_ENC_STREAM_TYPE_VBI && | |
164 | !(cap & (V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE))) | |
165 | return 0; | |
166 | ||
1c1e45d1 HV |
167 | /* User explicitly selected 0 buffers for these streams, so don't |
168 | create them. */ | |
169 | if (cx18_stream_info[type].dma != PCI_DMA_NONE && | |
170 | cx->options.megabytes[type] == 0) { | |
171 | CX18_INFO("Disabled %s device\n", cx18_stream_info[type].name); | |
172 | return 0; | |
173 | } | |
174 | ||
175 | cx18_stream_init(cx, type); | |
176 | ||
dd89601d | 177 | if (num_offset == -1) |
1c1e45d1 HV |
178 | return 0; |
179 | ||
180 | /* allocate and initialize the v4l2 video device structure */ | |
181 | s->v4l2dev = video_device_alloc(); | |
182 | if (s->v4l2dev == NULL) { | |
183 | CX18_ERR("Couldn't allocate v4l2 video_device for %s\n", | |
184 | s->name); | |
185 | return -ENOMEM; | |
186 | } | |
187 | ||
37f89f95 HV |
188 | snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "cx18-%d", |
189 | cx->num); | |
1c1e45d1 | 190 | |
dd89601d | 191 | s->v4l2dev->num = num; |
5e85e732 | 192 | s->v4l2dev->parent = &cx->dev->dev; |
1c1e45d1 HV |
193 | s->v4l2dev->fops = cx18_stream_info[type].fops; |
194 | s->v4l2dev->release = video_device_release; | |
3b6fe58f AW |
195 | s->v4l2dev->tvnorms = V4L2_STD_ALL; |
196 | cx18_set_funcs(s->v4l2dev); | |
1c1e45d1 HV |
197 | return 0; |
198 | } | |
199 | ||
200 | /* Initialize v4l2 variables and register v4l2 devices */ | |
201 | int cx18_streams_setup(struct cx18 *cx) | |
202 | { | |
9b4a7c8a | 203 | int type, ret; |
1c1e45d1 HV |
204 | |
205 | /* Setup V4L2 Devices */ | |
206 | for (type = 0; type < CX18_MAX_STREAMS; type++) { | |
207 | /* Prepare device */ | |
9b4a7c8a AW |
208 | ret = cx18_prep_dev(cx, type); |
209 | if (ret < 0) | |
1c1e45d1 HV |
210 | break; |
211 | ||
212 | /* Allocate Stream */ | |
9b4a7c8a AW |
213 | ret = cx18_stream_alloc(&cx->streams[type]); |
214 | if (ret < 0) | |
1c1e45d1 HV |
215 | break; |
216 | } | |
217 | if (type == CX18_MAX_STREAMS) | |
218 | return 0; | |
219 | ||
220 | /* One or more streams could not be initialized. Clean 'em all up. */ | |
3f98387e | 221 | cx18_streams_cleanup(cx, 0); |
9b4a7c8a | 222 | return ret; |
1c1e45d1 HV |
223 | } |
224 | ||
225 | static int cx18_reg_dev(struct cx18 *cx, int type) | |
226 | { | |
227 | struct cx18_stream *s = &cx->streams[type]; | |
228 | int vfl_type = cx18_stream_info[type].vfl_type; | |
9b4a7c8a | 229 | int num, ret; |
1c1e45d1 HV |
230 | |
231 | /* TODO: Shouldn't this be a VFL_TYPE_TRANSPORT or something? | |
232 | * We need a VFL_TYPE_TS defined. | |
233 | */ | |
234 | if (strcmp("TS", s->name) == 0) { | |
235 | /* just return if no DVB is supported */ | |
236 | if ((cx->card->hw_all & CX18_HW_DVB) == 0) | |
237 | return 0; | |
9b4a7c8a AW |
238 | ret = cx18_dvb_register(s); |
239 | if (ret < 0) { | |
1c1e45d1 | 240 | CX18_ERR("DVB failed to register\n"); |
9b4a7c8a | 241 | return ret; |
1c1e45d1 HV |
242 | } |
243 | } | |
244 | ||
245 | if (s->v4l2dev == NULL) | |
246 | return 0; | |
247 | ||
dd89601d HV |
248 | num = s->v4l2dev->num; |
249 | /* card number + user defined offset + device offset */ | |
250 | if (type != CX18_ENC_STREAM_TYPE_MPG) { | |
251 | struct cx18_stream *s_mpg = &cx->streams[CX18_ENC_STREAM_TYPE_MPG]; | |
252 | ||
253 | if (s_mpg->v4l2dev) | |
254 | num = s_mpg->v4l2dev->num + cx18_stream_info[type].num_offset; | |
255 | } | |
1c1e45d1 HV |
256 | |
257 | /* Register device. First try the desired minor, then any free one. */ | |
9b4a7c8a AW |
258 | ret = video_register_device(s->v4l2dev, vfl_type, num); |
259 | if (ret < 0) { | |
dd89601d HV |
260 | CX18_ERR("Couldn't register v4l2 device for %s kernel number %d\n", |
261 | s->name, num); | |
1c1e45d1 HV |
262 | video_device_release(s->v4l2dev); |
263 | s->v4l2dev = NULL; | |
9b4a7c8a | 264 | return ret; |
1c1e45d1 | 265 | } |
dd89601d | 266 | num = s->v4l2dev->num; |
1c1e45d1 HV |
267 | |
268 | switch (vfl_type) { | |
269 | case VFL_TYPE_GRABBER: | |
270 | CX18_INFO("Registered device video%d for %s (%d MB)\n", | |
dd89601d | 271 | num, s->name, cx->options.megabytes[type]); |
1c1e45d1 HV |
272 | break; |
273 | ||
274 | case VFL_TYPE_RADIO: | |
275 | CX18_INFO("Registered device radio%d for %s\n", | |
dd89601d | 276 | num, s->name); |
1c1e45d1 HV |
277 | break; |
278 | ||
279 | case VFL_TYPE_VBI: | |
280 | if (cx->options.megabytes[type]) | |
281 | CX18_INFO("Registered device vbi%d for %s (%d MB)\n", | |
dd89601d | 282 | num, |
1c1e45d1 HV |
283 | s->name, cx->options.megabytes[type]); |
284 | else | |
285 | CX18_INFO("Registered device vbi%d for %s\n", | |
dd89601d | 286 | num, s->name); |
1c1e45d1 HV |
287 | break; |
288 | } | |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
293 | /* Register v4l2 devices */ | |
294 | int cx18_streams_register(struct cx18 *cx) | |
295 | { | |
296 | int type; | |
9b4a7c8a AW |
297 | int err; |
298 | int ret = 0; | |
1c1e45d1 HV |
299 | |
300 | /* Register V4L2 devices */ | |
9b4a7c8a AW |
301 | for (type = 0; type < CX18_MAX_STREAMS; type++) { |
302 | err = cx18_reg_dev(cx, type); | |
303 | if (err && ret == 0) | |
304 | ret = err; | |
305 | } | |
1c1e45d1 | 306 | |
9b4a7c8a | 307 | if (ret == 0) |
1c1e45d1 HV |
308 | return 0; |
309 | ||
310 | /* One or more streams could not be initialized. Clean 'em all up. */ | |
3f98387e | 311 | cx18_streams_cleanup(cx, 1); |
9b4a7c8a | 312 | return ret; |
1c1e45d1 HV |
313 | } |
314 | ||
315 | /* Unregister v4l2 devices */ | |
3f98387e | 316 | void cx18_streams_cleanup(struct cx18 *cx, int unregister) |
1c1e45d1 HV |
317 | { |
318 | struct video_device *vdev; | |
319 | int type; | |
320 | ||
321 | /* Teardown all streams */ | |
322 | for (type = 0; type < CX18_MAX_STREAMS; type++) { | |
fac3639d | 323 | if (cx->streams[type].dvb.enabled) { |
1c1e45d1 | 324 | cx18_dvb_unregister(&cx->streams[type]); |
fac3639d HV |
325 | cx->streams[type].dvb.enabled = false; |
326 | } | |
1c1e45d1 HV |
327 | |
328 | vdev = cx->streams[type].v4l2dev; | |
329 | ||
330 | cx->streams[type].v4l2dev = NULL; | |
331 | if (vdev == NULL) | |
332 | continue; | |
333 | ||
334 | cx18_stream_free(&cx->streams[type]); | |
335 | ||
3f98387e HV |
336 | /* Unregister or release device */ |
337 | if (unregister) | |
338 | video_unregister_device(vdev); | |
339 | else | |
340 | video_device_release(vdev); | |
1c1e45d1 HV |
341 | } |
342 | } | |
343 | ||
344 | static void cx18_vbi_setup(struct cx18_stream *s) | |
345 | { | |
346 | struct cx18 *cx = s->cx; | |
347 | int raw = cx->vbi.sliced_in->service_set == 0; | |
348 | u32 data[CX2341X_MBOX_MAX_DATA]; | |
349 | int lines; | |
350 | ||
351 | if (cx->is_60hz) { | |
352 | cx->vbi.count = 12; | |
353 | cx->vbi.start[0] = 10; | |
354 | cx->vbi.start[1] = 273; | |
355 | } else { /* PAL/SECAM */ | |
356 | cx->vbi.count = 18; | |
357 | cx->vbi.start[0] = 6; | |
358 | cx->vbi.start[1] = 318; | |
359 | } | |
360 | ||
361 | /* setup VBI registers */ | |
362 | cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in); | |
363 | ||
364 | /* determine number of lines and total number of VBI bytes. | |
365 | A raw line takes 1443 bytes: 2 * 720 + 4 byte frame header - 1 | |
366 | The '- 1' byte is probably an unused U or V byte. Or something... | |
367 | A sliced line takes 51 bytes: 4 byte frame header, 4 byte internal | |
368 | header, 42 data bytes + checksum (to be confirmed) */ | |
369 | if (raw) { | |
370 | lines = cx->vbi.count * 2; | |
371 | } else { | |
372 | lines = cx->is_60hz ? 24 : 38; | |
373 | if (cx->is_60hz) | |
374 | lines += 2; | |
375 | } | |
376 | ||
377 | cx->vbi.enc_size = lines * | |
378 | (raw ? cx->vbi.raw_size : cx->vbi.sliced_size); | |
379 | ||
380 | data[0] = s->handle; | |
381 | /* Lines per field */ | |
382 | data[1] = (lines / 2) | ((lines / 2) << 16); | |
383 | /* bytes per line */ | |
384 | data[2] = (raw ? cx->vbi.raw_size : cx->vbi.sliced_size); | |
385 | /* Every X number of frames a VBI interrupt arrives | |
386 | (frames as in 25 or 30 fps) */ | |
387 | data[3] = 1; | |
388 | /* Setup VBI for the cx25840 digitizer */ | |
389 | if (raw) { | |
390 | data[4] = 0x20602060; | |
391 | data[5] = 0x30703070; | |
392 | } else { | |
393 | data[4] = 0xB0F0B0F0; | |
394 | data[5] = 0xA0E0A0E0; | |
395 | } | |
396 | ||
397 | CX18_DEBUG_INFO("Setup VBI h: %d lines %x bpl %d fr %d %x %x\n", | |
398 | data[0], data[1], data[2], data[3], data[4], data[5]); | |
399 | ||
400 | if (s->type == CX18_ENC_STREAM_TYPE_VBI) | |
401 | cx18_api(cx, CX18_CPU_SET_RAW_VBI_PARAM, 6, data); | |
402 | } | |
403 | ||
404 | int cx18_start_v4l2_encode_stream(struct cx18_stream *s) | |
405 | { | |
406 | u32 data[MAX_MB_ARGUMENTS]; | |
407 | struct cx18 *cx = s->cx; | |
408 | struct list_head *p; | |
409 | int ts = 0; | |
410 | int captype = 0; | |
411 | ||
412 | if (s->v4l2dev == NULL && s->dvb.enabled == 0) | |
413 | return -EINVAL; | |
414 | ||
415 | CX18_DEBUG_INFO("Start encoder stream %s\n", s->name); | |
416 | ||
417 | switch (s->type) { | |
418 | case CX18_ENC_STREAM_TYPE_MPG: | |
419 | captype = CAPTURE_CHANNEL_TYPE_MPEG; | |
420 | cx->mpg_data_received = cx->vbi_data_inserted = 0; | |
421 | cx->dualwatch_jiffies = jiffies; | |
422 | cx->dualwatch_stereo_mode = cx->params.audio_properties & 0x300; | |
423 | cx->search_pack_header = 0; | |
424 | break; | |
425 | ||
426 | case CX18_ENC_STREAM_TYPE_TS: | |
427 | captype = CAPTURE_CHANNEL_TYPE_TS; | |
428 | ts = 1; | |
429 | break; | |
430 | case CX18_ENC_STREAM_TYPE_YUV: | |
431 | captype = CAPTURE_CHANNEL_TYPE_YUV; | |
432 | break; | |
433 | case CX18_ENC_STREAM_TYPE_PCM: | |
434 | captype = CAPTURE_CHANNEL_TYPE_PCM; | |
435 | break; | |
436 | case CX18_ENC_STREAM_TYPE_VBI: | |
437 | captype = cx->vbi.sliced_in->service_set ? | |
438 | CAPTURE_CHANNEL_TYPE_SLICED_VBI : CAPTURE_CHANNEL_TYPE_VBI; | |
439 | cx->vbi.frame = 0; | |
440 | cx->vbi.inserted_frame = 0; | |
441 | memset(cx->vbi.sliced_mpeg_size, | |
442 | 0, sizeof(cx->vbi.sliced_mpeg_size)); | |
443 | break; | |
444 | default: | |
445 | return -EINVAL; | |
446 | } | |
1c1e45d1 HV |
447 | |
448 | /* mute/unmute video */ | |
449 | cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2, | |
450 | s->handle, !!test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)); | |
451 | ||
452 | /* Clear Streamoff flags in case left from last capture */ | |
453 | clear_bit(CX18_F_S_STREAMOFF, &s->s_flags); | |
454 | ||
455 | cx18_vapi_result(cx, data, CX18_CREATE_TASK, 1, CPU_CMD_MASK_CAPTURE); | |
456 | s->handle = data[0]; | |
457 | cx18_vapi(cx, CX18_CPU_SET_CHANNEL_TYPE, 2, s->handle, captype); | |
458 | ||
31554ae5 | 459 | if (atomic_read(&cx->ana_capturing) == 0 && !ts) { |
1c1e45d1 HV |
460 | /* Stuff from Windows, we don't know what it is */ |
461 | cx18_vapi(cx, CX18_CPU_SET_VER_CROP_LINE, 2, s->handle, 0); | |
462 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 3, 1); | |
463 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 8, 0); | |
464 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 4, 1); | |
465 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 2, s->handle, 12); | |
466 | ||
467 | cx18_vapi(cx, CX18_CPU_SET_CAPTURE_LINE_NO, 3, | |
468 | s->handle, cx->digitizer, cx->digitizer); | |
469 | ||
470 | /* Setup VBI */ | |
471 | if (cx->v4l2_cap & V4L2_CAP_VBI_CAPTURE) | |
472 | cx18_vbi_setup(s); | |
473 | ||
474 | /* assign program index info. | |
475 | Mask 7: select I/P/B, Num_req: 400 max */ | |
476 | cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 1, 0); | |
477 | ||
478 | /* Setup API for Stream */ | |
479 | cx2341x_update(cx, cx18_api_func, NULL, &cx->params); | |
480 | } | |
481 | ||
31554ae5 | 482 | if (atomic_read(&cx->tot_capturing) == 0) { |
1c1e45d1 | 483 | clear_bit(CX18_F_I_EOS, &cx->i_flags); |
b1526421 | 484 | cx18_write_reg(cx, 7, CX18_DSP0_INTERRUPT_MASK); |
1c1e45d1 HV |
485 | } |
486 | ||
487 | cx18_vapi(cx, CX18_CPU_DE_SET_MDL_ACK, 3, s->handle, | |
990c81c8 AV |
488 | (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][0] - cx->enc_mem, |
489 | (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][1] - cx->enc_mem); | |
1c1e45d1 HV |
490 | |
491 | list_for_each(p, &s->q_free.list) { | |
492 | struct cx18_buffer *buf = list_entry(p, struct cx18_buffer, list); | |
493 | ||
b1526421 AW |
494 | cx18_writel(cx, buf->dma_handle, |
495 | &cx->scb->cpu_mdl[buf->id].paddr); | |
496 | cx18_writel(cx, s->buf_size, &cx->scb->cpu_mdl[buf->id].length); | |
1c1e45d1 | 497 | cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle, |
990c81c8 AV |
498 | (void __iomem *)&cx->scb->cpu_mdl[buf->id] - cx->enc_mem, |
499 | 1, buf->id, s->buf_size); | |
1c1e45d1 HV |
500 | } |
501 | /* begin_capture */ | |
502 | if (cx18_vapi(cx, CX18_CPU_CAPTURE_START, 1, s->handle)) { | |
503 | CX18_DEBUG_WARN("Error starting capture!\n"); | |
3b5df8ea AW |
504 | /* Ensure we're really not capturing before releasing MDLs */ |
505 | if (s->type == CX18_ENC_STREAM_TYPE_MPG) | |
506 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, 1); | |
507 | else | |
508 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle); | |
509 | cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); | |
1c1e45d1 | 510 | cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); |
3b5df8ea | 511 | /* FIXME - clean-up DSP0_INT mask, i_flags, s_flags, etc. */ |
1c1e45d1 HV |
512 | return -EINVAL; |
513 | } | |
514 | ||
515 | /* you're live! sit back and await interrupts :) */ | |
31554ae5 HV |
516 | if (!ts) |
517 | atomic_inc(&cx->ana_capturing); | |
518 | atomic_inc(&cx->tot_capturing); | |
1c1e45d1 HV |
519 | return 0; |
520 | } | |
521 | ||
522 | void cx18_stop_all_captures(struct cx18 *cx) | |
523 | { | |
524 | int i; | |
525 | ||
526 | for (i = CX18_MAX_STREAMS - 1; i >= 0; i--) { | |
527 | struct cx18_stream *s = &cx->streams[i]; | |
528 | ||
529 | if (s->v4l2dev == NULL && s->dvb.enabled == 0) | |
530 | continue; | |
531 | if (test_bit(CX18_F_S_STREAMING, &s->s_flags)) | |
532 | cx18_stop_v4l2_encode_stream(s, 0); | |
533 | } | |
534 | } | |
535 | ||
536 | int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) | |
537 | { | |
538 | struct cx18 *cx = s->cx; | |
539 | unsigned long then; | |
540 | ||
541 | if (s->v4l2dev == NULL && s->dvb.enabled == 0) | |
542 | return -EINVAL; | |
543 | ||
544 | /* This function assumes that you are allowed to stop the capture | |
545 | and that we are actually capturing */ | |
546 | ||
547 | CX18_DEBUG_INFO("Stop Capture\n"); | |
548 | ||
31554ae5 | 549 | if (atomic_read(&cx->tot_capturing) == 0) |
1c1e45d1 HV |
550 | return 0; |
551 | ||
552 | if (s->type == CX18_ENC_STREAM_TYPE_MPG) | |
553 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, !gop_end); | |
554 | else | |
555 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle); | |
556 | ||
557 | then = jiffies; | |
558 | ||
559 | if (s->type == CX18_ENC_STREAM_TYPE_MPG && gop_end) { | |
560 | CX18_INFO("ignoring gop_end: not (yet?) supported by the firmware\n"); | |
561 | } | |
562 | ||
31554ae5 HV |
563 | if (s->type != CX18_ENC_STREAM_TYPE_TS) |
564 | atomic_dec(&cx->ana_capturing); | |
565 | atomic_dec(&cx->tot_capturing); | |
1c1e45d1 HV |
566 | |
567 | /* Clear capture and no-read bits */ | |
568 | clear_bit(CX18_F_S_STREAMING, &s->s_flags); | |
569 | ||
f68d0cf5 AW |
570 | /* Tell the CX23418 it can't use our buffers anymore */ |
571 | cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); | |
572 | ||
1c1e45d1 | 573 | cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); |
d3c5e707 | 574 | s->handle = CX18_INVALID_TASK_HANDLE; |
1c1e45d1 | 575 | |
31554ae5 | 576 | if (atomic_read(&cx->tot_capturing) > 0) |
1c1e45d1 HV |
577 | return 0; |
578 | ||
b1526421 | 579 | cx18_write_reg(cx, 5, CX18_DSP0_INTERRUPT_MASK); |
1c1e45d1 HV |
580 | wake_up(&s->waitq); |
581 | ||
582 | return 0; | |
583 | } | |
584 | ||
585 | u32 cx18_find_handle(struct cx18 *cx) | |
586 | { | |
587 | int i; | |
588 | ||
589 | /* find first available handle to be used for global settings */ | |
590 | for (i = 0; i < CX18_MAX_STREAMS; i++) { | |
591 | struct cx18_stream *s = &cx->streams[i]; | |
592 | ||
d3c5e707 | 593 | if (s->v4l2dev && (s->handle != CX18_INVALID_TASK_HANDLE)) |
1c1e45d1 HV |
594 | return s->handle; |
595 | } | |
d3c5e707 | 596 | return CX18_INVALID_TASK_HANDLE; |
1c1e45d1 | 597 | } |
ee2d64f5 AW |
598 | |
599 | struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle) | |
600 | { | |
601 | int i; | |
602 | struct cx18_stream *s; | |
603 | ||
604 | if (handle == CX18_INVALID_TASK_HANDLE) | |
605 | return NULL; | |
606 | ||
607 | for (i = 0; i < CX18_MAX_STREAMS; i++) { | |
608 | s = &cx->streams[i]; | |
609 | if (s->handle != handle) | |
610 | continue; | |
611 | if (s->v4l2dev || s->dvb.enabled) | |
612 | return s; | |
613 | } | |
614 | return NULL; | |
615 | } |