Commit | Line | Data |
---|---|---|
e0d3bafd SD |
1 | /* |
2 | * Conexant Cx231xx audio extension | |
3 | * | |
4 | * Copyright (C) 2008 <srinivasa.deevi at conexant dot com> | |
5 | * Based on em28xx driver | |
6 | * | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | */ | |
22 | ||
589dadf2 | 23 | #include "cx231xx.h" |
e0d3bafd | 24 | #include <linux/kernel.h> |
e0d3bafd SD |
25 | #include <linux/init.h> |
26 | #include <linux/sound.h> | |
27 | #include <linux/spinlock.h> | |
28 | #include <linux/soundcard.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/vmalloc.h> | |
31 | #include <linux/proc_fs.h> | |
32 | #include <linux/module.h> | |
33 | #include <sound/core.h> | |
34 | #include <sound/pcm.h> | |
35 | #include <sound/pcm_params.h> | |
36 | #include <sound/info.h> | |
37 | #include <sound/initval.h> | |
38 | #include <sound/control.h> | |
39 | #include <media/v4l2-common.h> | |
e0d3bafd SD |
40 | |
41 | static int debug; | |
42 | module_param(debug, int, 0644); | |
43 | MODULE_PARM_DESC(debug, "activates debug info"); | |
44 | ||
e0d3bafd SD |
45 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
46 | ||
47 | static int cx231xx_isoc_audio_deinit(struct cx231xx *dev) | |
48 | { | |
49 | int i; | |
50 | ||
336fea92 | 51 | dev_dbg(dev->dev, "Stopping isoc\n"); |
e0d3bafd | 52 | |
e0d3bafd | 53 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { |
84b5dbf3 MCC |
54 | if (dev->adev.urb[i]) { |
55 | if (!irqs_disabled()) | |
56 | usb_kill_urb(dev->adev.urb[i]); | |
57 | else | |
58 | usb_unlink_urb(dev->adev.urb[i]); | |
e0d3bafd | 59 | |
84b5dbf3 MCC |
60 | usb_free_urb(dev->adev.urb[i]); |
61 | dev->adev.urb[i] = NULL; | |
e0d3bafd | 62 | |
84b5dbf3 MCC |
63 | kfree(dev->adev.transfer_buffer[i]); |
64 | dev->adev.transfer_buffer[i] = NULL; | |
84b5dbf3 | 65 | } |
e0d3bafd SD |
66 | } |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
64fbf444 PB |
71 | static int cx231xx_bulk_audio_deinit(struct cx231xx *dev) |
72 | { | |
73 | int i; | |
74 | ||
336fea92 | 75 | dev_dbg(dev->dev, "Stopping bulk\n"); |
64fbf444 PB |
76 | |
77 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
78 | if (dev->adev.urb[i]) { | |
79 | if (!irqs_disabled()) | |
80 | usb_kill_urb(dev->adev.urb[i]); | |
81 | else | |
82 | usb_unlink_urb(dev->adev.urb[i]); | |
83 | ||
84 | usb_free_urb(dev->adev.urb[i]); | |
85 | dev->adev.urb[i] = NULL; | |
86 | ||
87 | kfree(dev->adev.transfer_buffer[i]); | |
88 | dev->adev.transfer_buffer[i] = NULL; | |
89 | } | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
e0d3bafd SD |
95 | static void cx231xx_audio_isocirq(struct urb *urb) |
96 | { | |
84b5dbf3 MCC |
97 | struct cx231xx *dev = urb->context; |
98 | int i; | |
99 | unsigned int oldptr; | |
100 | int period_elapsed = 0; | |
101 | int status; | |
102 | unsigned char *cp; | |
103 | unsigned int stride; | |
e0d3bafd | 104 | struct snd_pcm_substream *substream; |
84b5dbf3 MCC |
105 | struct snd_pcm_runtime *runtime; |
106 | ||
990862a2 MCC |
107 | if (dev->state & DEV_DISCONNECTED) |
108 | return; | |
109 | ||
84b5dbf3 MCC |
110 | switch (urb->status) { |
111 | case 0: /* success */ | |
112 | case -ETIMEDOUT: /* NAK */ | |
113 | break; | |
114 | case -ECONNRESET: /* kill */ | |
115 | case -ENOENT: | |
116 | case -ESHUTDOWN: | |
117 | return; | |
118 | default: /* error */ | |
336fea92 | 119 | dev_dbg(dev->dev, "urb completition error %d.\n", |
56d8a3b0 | 120 | urb->status); |
84b5dbf3 | 121 | break; |
e0d3bafd SD |
122 | } |
123 | ||
61b04cb2 MCC |
124 | if (atomic_read(&dev->stream_started) == 0) |
125 | return; | |
126 | ||
e0d3bafd SD |
127 | if (dev->adev.capture_pcm_substream) { |
128 | substream = dev->adev.capture_pcm_substream; | |
129 | runtime = substream->runtime; | |
130 | stride = runtime->frame_bits >> 3; | |
131 | ||
132 | for (i = 0; i < urb->number_of_packets; i++) { | |
cde4362f MCC |
133 | int length = urb->iso_frame_desc[i].actual_length / |
134 | stride; | |
e0d3bafd | 135 | cp = (unsigned char *)urb->transfer_buffer + |
cde4362f | 136 | urb->iso_frame_desc[i].offset; |
e0d3bafd SD |
137 | |
138 | if (!length) | |
139 | continue; | |
140 | ||
141 | oldptr = dev->adev.hwptr_done_capture; | |
142 | if (oldptr + length >= runtime->buffer_size) { | |
cde4362f MCC |
143 | unsigned int cnt; |
144 | ||
145 | cnt = runtime->buffer_size - oldptr; | |
e0d3bafd SD |
146 | memcpy(runtime->dma_area + oldptr * stride, cp, |
147 | cnt * stride); | |
148 | memcpy(runtime->dma_area, cp + cnt * stride, | |
149 | length * stride - cnt * stride); | |
150 | } else { | |
151 | memcpy(runtime->dma_area + oldptr * stride, cp, | |
152 | length * stride); | |
153 | } | |
154 | ||
155 | snd_pcm_stream_lock(substream); | |
156 | ||
157 | dev->adev.hwptr_done_capture += length; | |
b9255176 SD |
158 | if (dev->adev.hwptr_done_capture >= |
159 | runtime->buffer_size) | |
160 | dev->adev.hwptr_done_capture -= | |
161 | runtime->buffer_size; | |
e0d3bafd SD |
162 | |
163 | dev->adev.capture_transfer_done += length; | |
b9255176 SD |
164 | if (dev->adev.capture_transfer_done >= |
165 | runtime->period_size) { | |
166 | dev->adev.capture_transfer_done -= | |
167 | runtime->period_size; | |
e0d3bafd SD |
168 | period_elapsed = 1; |
169 | } | |
e0d3bafd SD |
170 | snd_pcm_stream_unlock(substream); |
171 | } | |
172 | if (period_elapsed) | |
173 | snd_pcm_period_elapsed(substream); | |
174 | } | |
175 | urb->status = 0; | |
176 | ||
177 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
178 | if (status < 0) { | |
336fea92 | 179 | dev_err(dev->dev, |
b7085c08 MCC |
180 | "resubmit of audio urb failed (error=%i)\n", |
181 | status); | |
e0d3bafd SD |
182 | } |
183 | return; | |
184 | } | |
185 | ||
64fbf444 PB |
186 | static void cx231xx_audio_bulkirq(struct urb *urb) |
187 | { | |
188 | struct cx231xx *dev = urb->context; | |
189 | unsigned int oldptr; | |
190 | int period_elapsed = 0; | |
191 | int status; | |
192 | unsigned char *cp; | |
193 | unsigned int stride; | |
194 | struct snd_pcm_substream *substream; | |
195 | struct snd_pcm_runtime *runtime; | |
196 | ||
990862a2 MCC |
197 | if (dev->state & DEV_DISCONNECTED) |
198 | return; | |
199 | ||
64fbf444 PB |
200 | switch (urb->status) { |
201 | case 0: /* success */ | |
202 | case -ETIMEDOUT: /* NAK */ | |
203 | break; | |
204 | case -ECONNRESET: /* kill */ | |
205 | case -ENOENT: | |
206 | case -ESHUTDOWN: | |
207 | return; | |
208 | default: /* error */ | |
336fea92 | 209 | dev_dbg(dev->dev, "urb completition error %d.\n", |
56d8a3b0 | 210 | urb->status); |
64fbf444 PB |
211 | break; |
212 | } | |
213 | ||
61b04cb2 MCC |
214 | if (atomic_read(&dev->stream_started) == 0) |
215 | return; | |
216 | ||
64fbf444 PB |
217 | if (dev->adev.capture_pcm_substream) { |
218 | substream = dev->adev.capture_pcm_substream; | |
219 | runtime = substream->runtime; | |
220 | stride = runtime->frame_bits >> 3; | |
221 | ||
222 | if (1) { | |
223 | int length = urb->actual_length / | |
224 | stride; | |
225 | cp = (unsigned char *)urb->transfer_buffer; | |
226 | ||
227 | oldptr = dev->adev.hwptr_done_capture; | |
228 | if (oldptr + length >= runtime->buffer_size) { | |
229 | unsigned int cnt; | |
230 | ||
231 | cnt = runtime->buffer_size - oldptr; | |
232 | memcpy(runtime->dma_area + oldptr * stride, cp, | |
233 | cnt * stride); | |
234 | memcpy(runtime->dma_area, cp + cnt * stride, | |
235 | length * stride - cnt * stride); | |
236 | } else { | |
237 | memcpy(runtime->dma_area + oldptr * stride, cp, | |
238 | length * stride); | |
239 | } | |
240 | ||
241 | snd_pcm_stream_lock(substream); | |
242 | ||
243 | dev->adev.hwptr_done_capture += length; | |
244 | if (dev->adev.hwptr_done_capture >= | |
245 | runtime->buffer_size) | |
246 | dev->adev.hwptr_done_capture -= | |
247 | runtime->buffer_size; | |
248 | ||
249 | dev->adev.capture_transfer_done += length; | |
250 | if (dev->adev.capture_transfer_done >= | |
251 | runtime->period_size) { | |
252 | dev->adev.capture_transfer_done -= | |
253 | runtime->period_size; | |
254 | period_elapsed = 1; | |
255 | } | |
256 | snd_pcm_stream_unlock(substream); | |
257 | } | |
258 | if (period_elapsed) | |
259 | snd_pcm_period_elapsed(substream); | |
260 | } | |
261 | urb->status = 0; | |
262 | ||
263 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
264 | if (status < 0) { | |
336fea92 | 265 | dev_err(dev->dev, |
b7085c08 MCC |
266 | "resubmit of audio urb failed (error=%i)\n", |
267 | status); | |
64fbf444 PB |
268 | } |
269 | return; | |
270 | } | |
271 | ||
e0d3bafd SD |
272 | static int cx231xx_init_audio_isoc(struct cx231xx *dev) |
273 | { | |
84b5dbf3 MCC |
274 | int i, errCode; |
275 | int sb_size; | |
e0d3bafd | 276 | |
336fea92 | 277 | dev_dbg(dev->dev, |
b7085c08 | 278 | "%s: Starting ISO AUDIO transfers\n", __func__); |
e0d3bafd | 279 | |
990862a2 MCC |
280 | if (dev->state & DEV_DISCONNECTED) |
281 | return -ENODEV; | |
282 | ||
64fbf444 | 283 | sb_size = CX231XX_ISO_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size; |
e0d3bafd SD |
284 | |
285 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
286 | struct urb *urb; | |
287 | int j, k; | |
288 | ||
289 | dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); | |
290 | if (!dev->adev.transfer_buffer[i]) | |
291 | return -ENOMEM; | |
292 | ||
293 | memset(dev->adev.transfer_buffer[i], 0x80, sb_size); | |
64fbf444 | 294 | urb = usb_alloc_urb(CX231XX_ISO_NUM_AUDIO_PACKETS, GFP_ATOMIC); |
e0d3bafd | 295 | if (!urb) { |
e0d3bafd SD |
296 | for (j = 0; j < i; j++) { |
297 | usb_free_urb(dev->adev.urb[j]); | |
298 | kfree(dev->adev.transfer_buffer[j]); | |
299 | } | |
300 | return -ENOMEM; | |
301 | } | |
302 | ||
303 | urb->dev = dev->udev; | |
304 | urb->context = dev; | |
b9255176 SD |
305 | urb->pipe = usb_rcvisocpipe(dev->udev, |
306 | dev->adev.end_point_addr); | |
cd5534be | 307 | urb->transfer_flags = URB_ISO_ASAP; |
e0d3bafd SD |
308 | urb->transfer_buffer = dev->adev.transfer_buffer[i]; |
309 | urb->interval = 1; | |
310 | urb->complete = cx231xx_audio_isocirq; | |
64fbf444 | 311 | urb->number_of_packets = CX231XX_ISO_NUM_AUDIO_PACKETS; |
e0d3bafd SD |
312 | urb->transfer_buffer_length = sb_size; |
313 | ||
64fbf444 | 314 | for (j = k = 0; j < CX231XX_ISO_NUM_AUDIO_PACKETS; |
b9255176 | 315 | j++, k += dev->adev.max_pkt_size) { |
e0d3bafd | 316 | urb->iso_frame_desc[j].offset = k; |
84b5dbf3 | 317 | urb->iso_frame_desc[j].length = dev->adev.max_pkt_size; |
e0d3bafd SD |
318 | } |
319 | dev->adev.urb[i] = urb; | |
320 | } | |
321 | ||
322 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
323 | errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); | |
324 | if (errCode < 0) { | |
325 | cx231xx_isoc_audio_deinit(dev); | |
326 | return errCode; | |
327 | } | |
328 | } | |
329 | ||
330 | return errCode; | |
331 | } | |
332 | ||
64fbf444 PB |
333 | static int cx231xx_init_audio_bulk(struct cx231xx *dev) |
334 | { | |
335 | int i, errCode; | |
336 | int sb_size; | |
337 | ||
336fea92 | 338 | dev_dbg(dev->dev, |
b7085c08 | 339 | "%s: Starting BULK AUDIO transfers\n", __func__); |
64fbf444 | 340 | |
990862a2 MCC |
341 | if (dev->state & DEV_DISCONNECTED) |
342 | return -ENODEV; | |
343 | ||
64fbf444 PB |
344 | sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size; |
345 | ||
346 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
347 | struct urb *urb; | |
348 | int j; | |
349 | ||
350 | dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); | |
351 | if (!dev->adev.transfer_buffer[i]) | |
352 | return -ENOMEM; | |
353 | ||
354 | memset(dev->adev.transfer_buffer[i], 0x80, sb_size); | |
355 | urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC); | |
356 | if (!urb) { | |
64fbf444 PB |
357 | for (j = 0; j < i; j++) { |
358 | usb_free_urb(dev->adev.urb[j]); | |
359 | kfree(dev->adev.transfer_buffer[j]); | |
360 | } | |
361 | return -ENOMEM; | |
362 | } | |
363 | ||
364 | urb->dev = dev->udev; | |
365 | urb->context = dev; | |
366 | urb->pipe = usb_rcvbulkpipe(dev->udev, | |
367 | dev->adev.end_point_addr); | |
cd5534be | 368 | urb->transfer_flags = 0; |
64fbf444 PB |
369 | urb->transfer_buffer = dev->adev.transfer_buffer[i]; |
370 | urb->complete = cx231xx_audio_bulkirq; | |
371 | urb->transfer_buffer_length = sb_size; | |
372 | ||
373 | dev->adev.urb[i] = urb; | |
374 | ||
375 | } | |
376 | ||
377 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
378 | errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); | |
379 | if (errCode < 0) { | |
380 | cx231xx_bulk_audio_deinit(dev); | |
381 | return errCode; | |
382 | } | |
383 | } | |
384 | ||
385 | return errCode; | |
386 | } | |
387 | ||
e0d3bafd SD |
388 | static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, |
389 | size_t size) | |
390 | { | |
391 | struct snd_pcm_runtime *runtime = subs->runtime; | |
56d8a3b0 | 392 | struct cx231xx *dev = snd_pcm_substream_chip(subs); |
e0d3bafd | 393 | |
336fea92 | 394 | dev_dbg(dev->dev, "Allocating vbuffer\n"); |
e0d3bafd SD |
395 | if (runtime->dma_area) { |
396 | if (runtime->dma_bytes > size) | |
397 | return 0; | |
398 | ||
399 | vfree(runtime->dma_area); | |
400 | } | |
401 | runtime->dma_area = vmalloc(size); | |
402 | if (!runtime->dma_area) | |
403 | return -ENOMEM; | |
404 | ||
405 | runtime->dma_bytes = size; | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | static struct snd_pcm_hardware snd_cx231xx_hw_capture = { | |
6e4f574b SD |
411 | .info = SNDRV_PCM_INFO_BLOCK_TRANSFER | |
412 | SNDRV_PCM_INFO_MMAP | | |
413 | SNDRV_PCM_INFO_INTERLEAVED | | |
414 | SNDRV_PCM_INFO_MMAP_VALID, | |
e0d3bafd SD |
415 | |
416 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
417 | ||
418 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_KNOT, | |
419 | ||
420 | .rate_min = 48000, | |
421 | .rate_max = 48000, | |
422 | .channels_min = 2, | |
423 | .channels_max = 2, | |
424 | .buffer_bytes_max = 62720 * 8, /* just about the value in usbaudio.c */ | |
cde4362f | 425 | .period_bytes_min = 64, /* 12544/2, */ |
e0d3bafd SD |
426 | .period_bytes_max = 12544, |
427 | .periods_min = 2, | |
cde4362f | 428 | .periods_max = 98, /* 12544, */ |
e0d3bafd SD |
429 | }; |
430 | ||
431 | static int snd_cx231xx_capture_open(struct snd_pcm_substream *substream) | |
432 | { | |
433 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
434 | struct snd_pcm_runtime *runtime = substream->runtime; | |
435 | int ret = 0; | |
436 | ||
336fea92 | 437 | dev_dbg(dev->dev, |
56d8a3b0 | 438 | "opening device and trying to acquire exclusive lock\n"); |
e0d3bafd | 439 | |
990862a2 | 440 | if (dev->state & DEV_DISCONNECTED) { |
336fea92 | 441 | dev_err(dev->dev, |
b7085c08 | 442 | "Can't open. the device was removed.\n"); |
990862a2 MCC |
443 | return -ENODEV; |
444 | } | |
445 | ||
84b5dbf3 | 446 | /* set alternate setting for audio interface */ |
b9255176 | 447 | /* 1 - 48000 samples per sec */ |
61b04cb2 | 448 | mutex_lock(&dev->lock); |
64fbf444 PB |
449 | if (dev->USE_ISO) |
450 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1); | |
451 | else | |
452 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0); | |
61b04cb2 | 453 | mutex_unlock(&dev->lock); |
84b5dbf3 | 454 | if (ret < 0) { |
336fea92 | 455 | dev_err(dev->dev, |
b7085c08 | 456 | "failed to set alternate setting !\n"); |
e0d3bafd | 457 | |
84b5dbf3 MCC |
458 | return ret; |
459 | } | |
e0d3bafd | 460 | |
e0d3bafd SD |
461 | runtime->hw = snd_cx231xx_hw_capture; |
462 | ||
84b5dbf3 | 463 | mutex_lock(&dev->lock); |
61b04cb2 MCC |
464 | /* inform hardware to start streaming */ |
465 | ret = cx231xx_capture_start(dev, 1, Audio); | |
466 | ||
e0d3bafd | 467 | dev->adev.users++; |
84b5dbf3 | 468 | mutex_unlock(&dev->lock); |
e0d3bafd SD |
469 | |
470 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
471 | dev->adev.capture_pcm_substream = substream; | |
472 | runtime->private_data = dev; | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream) | |
478 | { | |
84b5dbf3 | 479 | int ret; |
e0d3bafd SD |
480 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
481 | ||
336fea92 | 482 | dev_dbg(dev->dev, "closing device\n"); |
e0d3bafd | 483 | |
61b04cb2 MCC |
484 | /* inform hardware to stop streaming */ |
485 | mutex_lock(&dev->lock); | |
64fbf444 PB |
486 | ret = cx231xx_capture_start(dev, 0, Audio); |
487 | ||
84b5dbf3 | 488 | /* set alternate setting for audio interface */ |
b9255176 SD |
489 | /* 1 - 48000 samples per sec */ |
490 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0); | |
84b5dbf3 | 491 | if (ret < 0) { |
336fea92 | 492 | dev_err(dev->dev, |
b7085c08 | 493 | "failed to set alternate setting !\n"); |
e0d3bafd | 494 | |
61b04cb2 | 495 | mutex_unlock(&dev->lock); |
84b5dbf3 MCC |
496 | return ret; |
497 | } | |
e0d3bafd | 498 | |
84b5dbf3 | 499 | dev->adev.users--; |
9dd73448 JBT |
500 | if (substream->runtime->dma_area) { |
501 | dev_dbg(dev->dev, "freeing\n"); | |
502 | vfree(substream->runtime->dma_area); | |
503 | substream->runtime->dma_area = NULL; | |
504 | } | |
e0d3bafd SD |
505 | mutex_unlock(&dev->lock); |
506 | ||
507 | if (dev->adev.users == 0 && dev->adev.shutdown == 1) { | |
336fea92 MCC |
508 | dev_dbg(dev->dev, "audio users: %d\n", dev->adev.users); |
509 | dev_dbg(dev->dev, "disabling audio stream!\n"); | |
e0d3bafd | 510 | dev->adev.shutdown = 0; |
336fea92 | 511 | dev_dbg(dev->dev, "released lock\n"); |
61b04cb2 MCC |
512 | if (atomic_read(&dev->stream_started) > 0) { |
513 | atomic_set(&dev->stream_started, 0); | |
514 | schedule_work(&dev->wq_trigger); | |
515 | } | |
e0d3bafd SD |
516 | } |
517 | return 0; | |
518 | } | |
519 | ||
520 | static int snd_cx231xx_hw_capture_params(struct snd_pcm_substream *substream, | |
84b5dbf3 | 521 | struct snd_pcm_hw_params *hw_params) |
e0d3bafd | 522 | { |
56d8a3b0 | 523 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
e0d3bafd SD |
524 | int ret; |
525 | ||
336fea92 | 526 | dev_dbg(dev->dev, "Setting capture parameters\n"); |
e0d3bafd SD |
527 | |
528 | ret = snd_pcm_alloc_vmalloc_buffer(substream, | |
84b5dbf3 | 529 | params_buffer_bytes(hw_params)); |
da983503 HV |
530 | #if 0 |
531 | /* TODO: set up cx231xx audio chip to deliver the correct audio format, | |
532 | current default is 48000hz multiplexed => 96000hz mono | |
533 | which shouldn't matter since analogue TV only supports mono */ | |
534 | unsigned int channels, rate, format; | |
535 | ||
e0d3bafd SD |
536 | format = params_format(hw_params); |
537 | rate = params_rate(hw_params); | |
538 | channels = params_channels(hw_params); | |
da983503 | 539 | #endif |
e0d3bafd | 540 | |
da983503 | 541 | return ret; |
e0d3bafd SD |
542 | } |
543 | ||
544 | static int snd_cx231xx_hw_capture_free(struct snd_pcm_substream *substream) | |
545 | { | |
546 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
547 | ||
336fea92 | 548 | dev_dbg(dev->dev, "Stop capture, if needed\n"); |
e0d3bafd | 549 | |
61b04cb2 MCC |
550 | if (atomic_read(&dev->stream_started) > 0) { |
551 | atomic_set(&dev->stream_started, 0); | |
552 | schedule_work(&dev->wq_trigger); | |
553 | } | |
e0d3bafd SD |
554 | |
555 | return 0; | |
556 | } | |
557 | ||
558 | static int snd_cx231xx_prepare(struct snd_pcm_substream *substream) | |
559 | { | |
64fbf444 PB |
560 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
561 | ||
562 | dev->adev.hwptr_done_capture = 0; | |
563 | dev->adev.capture_transfer_done = 0; | |
564 | ||
e0d3bafd SD |
565 | return 0; |
566 | } | |
567 | ||
61b04cb2 MCC |
568 | static void audio_trigger(struct work_struct *work) |
569 | { | |
570 | struct cx231xx *dev = container_of(work, struct cx231xx, wq_trigger); | |
571 | ||
572 | if (atomic_read(&dev->stream_started)) { | |
336fea92 | 573 | dev_dbg(dev->dev, "starting capture"); |
61b04cb2 MCC |
574 | if (is_fw_load(dev) == 0) |
575 | cx25840_call(dev, core, load_fw); | |
576 | if (dev->USE_ISO) | |
577 | cx231xx_init_audio_isoc(dev); | |
578 | else | |
579 | cx231xx_init_audio_bulk(dev); | |
580 | } else { | |
336fea92 | 581 | dev_dbg(dev->dev, "stopping capture"); |
61b04cb2 MCC |
582 | cx231xx_isoc_audio_deinit(dev); |
583 | } | |
584 | } | |
585 | ||
e0d3bafd | 586 | static int snd_cx231xx_capture_trigger(struct snd_pcm_substream *substream, |
84b5dbf3 | 587 | int cmd) |
e0d3bafd SD |
588 | { |
589 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
da983503 | 590 | int retval = 0; |
e0d3bafd | 591 | |
990862a2 MCC |
592 | if (dev->state & DEV_DISCONNECTED) |
593 | return -ENODEV; | |
594 | ||
84b5dbf3 | 595 | spin_lock(&dev->adev.slock); |
e0d3bafd SD |
596 | switch (cmd) { |
597 | case SNDRV_PCM_TRIGGER_START: | |
61b04cb2 | 598 | atomic_set(&dev->stream_started, 1); |
e0d3bafd SD |
599 | break; |
600 | case SNDRV_PCM_TRIGGER_STOP: | |
61b04cb2 | 601 | atomic_set(&dev->stream_started, 0); |
84b5dbf3 | 602 | break; |
e0d3bafd SD |
603 | default: |
604 | retval = -EINVAL; | |
da983503 | 605 | break; |
e0d3bafd | 606 | } |
84b5dbf3 | 607 | spin_unlock(&dev->adev.slock); |
61b04cb2 MCC |
608 | |
609 | schedule_work(&dev->wq_trigger); | |
610 | ||
da983503 | 611 | return retval; |
e0d3bafd SD |
612 | } |
613 | ||
614 | static snd_pcm_uframes_t snd_cx231xx_capture_pointer(struct snd_pcm_substream | |
84b5dbf3 | 615 | *substream) |
e0d3bafd SD |
616 | { |
617 | struct cx231xx *dev; | |
84b5dbf3 | 618 | unsigned long flags; |
e0d3bafd SD |
619 | snd_pcm_uframes_t hwptr_done; |
620 | ||
621 | dev = snd_pcm_substream_chip(substream); | |
622 | ||
84b5dbf3 | 623 | spin_lock_irqsave(&dev->adev.slock, flags); |
e0d3bafd | 624 | hwptr_done = dev->adev.hwptr_done_capture; |
84b5dbf3 | 625 | spin_unlock_irqrestore(&dev->adev.slock, flags); |
e0d3bafd SD |
626 | |
627 | return hwptr_done; | |
628 | } | |
629 | ||
630 | static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs, | |
631 | unsigned long offset) | |
632 | { | |
633 | void *pageptr = subs->runtime->dma_area + offset; | |
634 | ||
635 | return vmalloc_to_page(pageptr); | |
636 | } | |
637 | ||
638 | static struct snd_pcm_ops snd_cx231xx_pcm_capture = { | |
84b5dbf3 MCC |
639 | .open = snd_cx231xx_capture_open, |
640 | .close = snd_cx231xx_pcm_close, | |
641 | .ioctl = snd_pcm_lib_ioctl, | |
e0d3bafd | 642 | .hw_params = snd_cx231xx_hw_capture_params, |
84b5dbf3 MCC |
643 | .hw_free = snd_cx231xx_hw_capture_free, |
644 | .prepare = snd_cx231xx_prepare, | |
645 | .trigger = snd_cx231xx_capture_trigger, | |
646 | .pointer = snd_cx231xx_capture_pointer, | |
647 | .page = snd_pcm_get_vmalloc_page, | |
e0d3bafd SD |
648 | }; |
649 | ||
650 | static int cx231xx_audio_init(struct cx231xx *dev) | |
651 | { | |
652 | struct cx231xx_audio *adev = &dev->adev; | |
84b5dbf3 MCC |
653 | struct snd_pcm *pcm; |
654 | struct snd_card *card; | |
655 | static int devnr; | |
656 | int err; | |
657 | struct usb_interface *uif; | |
658 | int i, isoc_pipe = 0; | |
e0d3bafd SD |
659 | |
660 | if (dev->has_alsa_audio != 1) { | |
661 | /* This device does not support the extension (in this case | |
662 | the device is expecting the snd-usb-audio module or | |
663 | doesn't have analog audio support at all) */ | |
664 | return 0; | |
665 | } | |
666 | ||
336fea92 | 667 | dev_dbg(dev->dev, |
b7085c08 | 668 | "probing for cx231xx non standard usbaudio\n"); |
e0d3bafd | 669 | |
336fea92 | 670 | err = snd_card_new(dev->dev, index[devnr], "Cx231xx Audio", |
e7356888 | 671 | THIS_MODULE, 0, &card); |
a938b8c5 MCC |
672 | if (err < 0) |
673 | return err; | |
e0d3bafd SD |
674 | |
675 | spin_lock_init(&adev->slock); | |
676 | err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm); | |
677 | if (err < 0) { | |
678 | snd_card_free(card); | |
679 | return err; | |
680 | } | |
681 | ||
84b5dbf3 MCC |
682 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, |
683 | &snd_cx231xx_pcm_capture); | |
e0d3bafd SD |
684 | pcm->info_flags = 0; |
685 | pcm->private_data = dev; | |
686 | strcpy(pcm->name, "Conexant cx231xx Capture"); | |
935539c9 | 687 | strcpy(card->driver, "Cx231xx-Audio"); |
e0d3bafd SD |
688 | strcpy(card->shortname, "Cx231xx Audio"); |
689 | strcpy(card->longname, "Conexant cx231xx Audio"); | |
690 | ||
61b04cb2 MCC |
691 | INIT_WORK(&dev->wq_trigger, audio_trigger); |
692 | ||
e0d3bafd SD |
693 | err = snd_card_register(card); |
694 | if (err < 0) { | |
695 | snd_card_free(card); | |
696 | return err; | |
697 | } | |
698 | adev->sndcard = card; | |
699 | adev->udev = dev->udev; | |
700 | ||
84b5dbf3 MCC |
701 | /* compute alternate max packet sizes for Audio */ |
702 | uif = | |
703 | dev->udev->actconfig->interface[dev->current_pcb_config. | |
704 | hs_config_info[0].interface_info. | |
705 | audio_index + 1]; | |
e0d3bafd | 706 | |
84b5dbf3 | 707 | adev->end_point_addr = |
69a11a32 HV |
708 | uif->altsetting[0].endpoint[isoc_pipe].desc. |
709 | bEndpointAddress; | |
e0d3bafd | 710 | |
84b5dbf3 | 711 | adev->num_alt = uif->num_altsetting; |
336fea92 | 712 | dev_info(dev->dev, |
b7085c08 | 713 | "audio EndPoint Addr 0x%x, Alternate settings: %i\n", |
ed0e3729 | 714 | adev->end_point_addr, adev->num_alt); |
84b5dbf3 | 715 | adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL); |
e0d3bafd | 716 | |
ed0e3729 | 717 | if (adev->alt_max_pkt_size == NULL) |
84b5dbf3 | 718 | return -ENOMEM; |
e0d3bafd | 719 | |
84b5dbf3 MCC |
720 | for (i = 0; i < adev->num_alt; i++) { |
721 | u16 tmp = | |
722 | le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc. | |
723 | wMaxPacketSize); | |
724 | adev->alt_max_pkt_size[i] = | |
725 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
336fea92 | 726 | dev_dbg(dev->dev, |
b7085c08 MCC |
727 | "audio alternate setting %i, max size= %i\n", i, |
728 | adev->alt_max_pkt_size[i]); | |
84b5dbf3 | 729 | } |
e0d3bafd SD |
730 | |
731 | return 0; | |
732 | } | |
733 | ||
734 | static int cx231xx_audio_fini(struct cx231xx *dev) | |
735 | { | |
736 | if (dev == NULL) | |
737 | return 0; | |
738 | ||
739 | if (dev->has_alsa_audio != 1) { | |
740 | /* This device does not support the extension (in this case | |
741 | the device is expecting the snd-usb-audio module or | |
742 | doesn't have analog audio support at all) */ | |
743 | return 0; | |
744 | } | |
745 | ||
746 | if (dev->adev.sndcard) { | |
747 | snd_card_free(dev->adev.sndcard); | |
84b5dbf3 | 748 | kfree(dev->adev.alt_max_pkt_size); |
e0d3bafd SD |
749 | dev->adev.sndcard = NULL; |
750 | } | |
751 | ||
752 | return 0; | |
753 | } | |
754 | ||
755 | static struct cx231xx_ops audio_ops = { | |
84b5dbf3 | 756 | .id = CX231XX_AUDIO, |
e0d3bafd SD |
757 | .name = "Cx231xx Audio Extension", |
758 | .init = cx231xx_audio_init, | |
759 | .fini = cx231xx_audio_fini, | |
760 | }; | |
761 | ||
762 | static int __init cx231xx_alsa_register(void) | |
763 | { | |
764 | return cx231xx_register_extension(&audio_ops); | |
765 | } | |
766 | ||
767 | static void __exit cx231xx_alsa_unregister(void) | |
768 | { | |
769 | cx231xx_unregister_extension(&audio_ops); | |
770 | } | |
771 | ||
772 | MODULE_LICENSE("GPL"); | |
773 | MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>"); | |
774 | MODULE_DESCRIPTION("Cx231xx Audio driver"); | |
775 | ||
776 | module_init(cx231xx_alsa_register); | |
777 | module_exit(cx231xx_alsa_unregister); |