Commit | Line | Data |
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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) { |
336fea92 | 296 | dev_err(dev->dev, "usb_alloc_urb failed!\n"); |
e0d3bafd SD |
297 | for (j = 0; j < i; j++) { |
298 | usb_free_urb(dev->adev.urb[j]); | |
299 | kfree(dev->adev.transfer_buffer[j]); | |
300 | } | |
301 | return -ENOMEM; | |
302 | } | |
303 | ||
304 | urb->dev = dev->udev; | |
305 | urb->context = dev; | |
b9255176 SD |
306 | urb->pipe = usb_rcvisocpipe(dev->udev, |
307 | dev->adev.end_point_addr); | |
cd5534be | 308 | urb->transfer_flags = URB_ISO_ASAP; |
e0d3bafd SD |
309 | urb->transfer_buffer = dev->adev.transfer_buffer[i]; |
310 | urb->interval = 1; | |
311 | urb->complete = cx231xx_audio_isocirq; | |
64fbf444 | 312 | urb->number_of_packets = CX231XX_ISO_NUM_AUDIO_PACKETS; |
e0d3bafd SD |
313 | urb->transfer_buffer_length = sb_size; |
314 | ||
64fbf444 | 315 | for (j = k = 0; j < CX231XX_ISO_NUM_AUDIO_PACKETS; |
b9255176 | 316 | j++, k += dev->adev.max_pkt_size) { |
e0d3bafd | 317 | urb->iso_frame_desc[j].offset = k; |
84b5dbf3 | 318 | urb->iso_frame_desc[j].length = dev->adev.max_pkt_size; |
e0d3bafd SD |
319 | } |
320 | dev->adev.urb[i] = urb; | |
321 | } | |
322 | ||
323 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
324 | errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); | |
325 | if (errCode < 0) { | |
326 | cx231xx_isoc_audio_deinit(dev); | |
327 | return errCode; | |
328 | } | |
329 | } | |
330 | ||
331 | return errCode; | |
332 | } | |
333 | ||
64fbf444 PB |
334 | static int cx231xx_init_audio_bulk(struct cx231xx *dev) |
335 | { | |
336 | int i, errCode; | |
337 | int sb_size; | |
338 | ||
336fea92 | 339 | dev_dbg(dev->dev, |
b7085c08 | 340 | "%s: Starting BULK AUDIO transfers\n", __func__); |
64fbf444 | 341 | |
990862a2 MCC |
342 | if (dev->state & DEV_DISCONNECTED) |
343 | return -ENODEV; | |
344 | ||
64fbf444 PB |
345 | sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size; |
346 | ||
347 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
348 | struct urb *urb; | |
349 | int j; | |
350 | ||
351 | dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); | |
352 | if (!dev->adev.transfer_buffer[i]) | |
353 | return -ENOMEM; | |
354 | ||
355 | memset(dev->adev.transfer_buffer[i], 0x80, sb_size); | |
356 | urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC); | |
357 | if (!urb) { | |
336fea92 | 358 | dev_err(dev->dev, "usb_alloc_urb failed!\n"); |
64fbf444 PB |
359 | for (j = 0; j < i; j++) { |
360 | usb_free_urb(dev->adev.urb[j]); | |
361 | kfree(dev->adev.transfer_buffer[j]); | |
362 | } | |
363 | return -ENOMEM; | |
364 | } | |
365 | ||
366 | urb->dev = dev->udev; | |
367 | urb->context = dev; | |
368 | urb->pipe = usb_rcvbulkpipe(dev->udev, | |
369 | dev->adev.end_point_addr); | |
cd5534be | 370 | urb->transfer_flags = 0; |
64fbf444 PB |
371 | urb->transfer_buffer = dev->adev.transfer_buffer[i]; |
372 | urb->complete = cx231xx_audio_bulkirq; | |
373 | urb->transfer_buffer_length = sb_size; | |
374 | ||
375 | dev->adev.urb[i] = urb; | |
376 | ||
377 | } | |
378 | ||
379 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
380 | errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); | |
381 | if (errCode < 0) { | |
382 | cx231xx_bulk_audio_deinit(dev); | |
383 | return errCode; | |
384 | } | |
385 | } | |
386 | ||
387 | return errCode; | |
388 | } | |
389 | ||
e0d3bafd SD |
390 | static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, |
391 | size_t size) | |
392 | { | |
393 | struct snd_pcm_runtime *runtime = subs->runtime; | |
56d8a3b0 | 394 | struct cx231xx *dev = snd_pcm_substream_chip(subs); |
e0d3bafd | 395 | |
336fea92 | 396 | dev_dbg(dev->dev, "Allocating vbuffer\n"); |
e0d3bafd SD |
397 | if (runtime->dma_area) { |
398 | if (runtime->dma_bytes > size) | |
399 | return 0; | |
400 | ||
401 | vfree(runtime->dma_area); | |
402 | } | |
403 | runtime->dma_area = vmalloc(size); | |
404 | if (!runtime->dma_area) | |
405 | return -ENOMEM; | |
406 | ||
407 | runtime->dma_bytes = size; | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | static struct snd_pcm_hardware snd_cx231xx_hw_capture = { | |
6e4f574b SD |
413 | .info = SNDRV_PCM_INFO_BLOCK_TRANSFER | |
414 | SNDRV_PCM_INFO_MMAP | | |
415 | SNDRV_PCM_INFO_INTERLEAVED | | |
416 | SNDRV_PCM_INFO_MMAP_VALID, | |
e0d3bafd SD |
417 | |
418 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
419 | ||
420 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_KNOT, | |
421 | ||
422 | .rate_min = 48000, | |
423 | .rate_max = 48000, | |
424 | .channels_min = 2, | |
425 | .channels_max = 2, | |
426 | .buffer_bytes_max = 62720 * 8, /* just about the value in usbaudio.c */ | |
cde4362f | 427 | .period_bytes_min = 64, /* 12544/2, */ |
e0d3bafd SD |
428 | .period_bytes_max = 12544, |
429 | .periods_min = 2, | |
cde4362f | 430 | .periods_max = 98, /* 12544, */ |
e0d3bafd SD |
431 | }; |
432 | ||
433 | static int snd_cx231xx_capture_open(struct snd_pcm_substream *substream) | |
434 | { | |
435 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
436 | struct snd_pcm_runtime *runtime = substream->runtime; | |
437 | int ret = 0; | |
438 | ||
336fea92 | 439 | dev_dbg(dev->dev, |
56d8a3b0 | 440 | "opening device and trying to acquire exclusive lock\n"); |
e0d3bafd | 441 | |
990862a2 | 442 | if (dev->state & DEV_DISCONNECTED) { |
336fea92 | 443 | dev_err(dev->dev, |
b7085c08 | 444 | "Can't open. the device was removed.\n"); |
990862a2 MCC |
445 | return -ENODEV; |
446 | } | |
447 | ||
84b5dbf3 | 448 | /* set alternate setting for audio interface */ |
b9255176 | 449 | /* 1 - 48000 samples per sec */ |
61b04cb2 | 450 | mutex_lock(&dev->lock); |
64fbf444 PB |
451 | if (dev->USE_ISO) |
452 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1); | |
453 | else | |
454 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0); | |
61b04cb2 | 455 | mutex_unlock(&dev->lock); |
84b5dbf3 | 456 | if (ret < 0) { |
336fea92 | 457 | dev_err(dev->dev, |
b7085c08 | 458 | "failed to set alternate setting !\n"); |
e0d3bafd | 459 | |
84b5dbf3 MCC |
460 | return ret; |
461 | } | |
e0d3bafd | 462 | |
e0d3bafd SD |
463 | runtime->hw = snd_cx231xx_hw_capture; |
464 | ||
84b5dbf3 | 465 | mutex_lock(&dev->lock); |
61b04cb2 MCC |
466 | /* inform hardware to start streaming */ |
467 | ret = cx231xx_capture_start(dev, 1, Audio); | |
468 | ||
e0d3bafd | 469 | dev->adev.users++; |
84b5dbf3 | 470 | mutex_unlock(&dev->lock); |
e0d3bafd SD |
471 | |
472 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
473 | dev->adev.capture_pcm_substream = substream; | |
474 | runtime->private_data = dev; | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
479 | static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream) | |
480 | { | |
84b5dbf3 | 481 | int ret; |
e0d3bafd SD |
482 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
483 | ||
336fea92 | 484 | dev_dbg(dev->dev, "closing device\n"); |
e0d3bafd | 485 | |
61b04cb2 MCC |
486 | /* inform hardware to stop streaming */ |
487 | mutex_lock(&dev->lock); | |
64fbf444 PB |
488 | ret = cx231xx_capture_start(dev, 0, Audio); |
489 | ||
84b5dbf3 | 490 | /* set alternate setting for audio interface */ |
b9255176 SD |
491 | /* 1 - 48000 samples per sec */ |
492 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0); | |
84b5dbf3 | 493 | if (ret < 0) { |
336fea92 | 494 | dev_err(dev->dev, |
b7085c08 | 495 | "failed to set alternate setting !\n"); |
e0d3bafd | 496 | |
61b04cb2 | 497 | mutex_unlock(&dev->lock); |
84b5dbf3 MCC |
498 | return ret; |
499 | } | |
e0d3bafd | 500 | |
84b5dbf3 | 501 | dev->adev.users--; |
9dd73448 JBT |
502 | if (substream->runtime->dma_area) { |
503 | dev_dbg(dev->dev, "freeing\n"); | |
504 | vfree(substream->runtime->dma_area); | |
505 | substream->runtime->dma_area = NULL; | |
506 | } | |
e0d3bafd SD |
507 | mutex_unlock(&dev->lock); |
508 | ||
509 | if (dev->adev.users == 0 && dev->adev.shutdown == 1) { | |
336fea92 MCC |
510 | dev_dbg(dev->dev, "audio users: %d\n", dev->adev.users); |
511 | dev_dbg(dev->dev, "disabling audio stream!\n"); | |
e0d3bafd | 512 | dev->adev.shutdown = 0; |
336fea92 | 513 | dev_dbg(dev->dev, "released lock\n"); |
61b04cb2 MCC |
514 | if (atomic_read(&dev->stream_started) > 0) { |
515 | atomic_set(&dev->stream_started, 0); | |
516 | schedule_work(&dev->wq_trigger); | |
517 | } | |
e0d3bafd SD |
518 | } |
519 | return 0; | |
520 | } | |
521 | ||
522 | static int snd_cx231xx_hw_capture_params(struct snd_pcm_substream *substream, | |
84b5dbf3 | 523 | struct snd_pcm_hw_params *hw_params) |
e0d3bafd | 524 | { |
56d8a3b0 | 525 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
e0d3bafd SD |
526 | int ret; |
527 | ||
336fea92 | 528 | dev_dbg(dev->dev, "Setting capture parameters\n"); |
e0d3bafd SD |
529 | |
530 | ret = snd_pcm_alloc_vmalloc_buffer(substream, | |
84b5dbf3 | 531 | params_buffer_bytes(hw_params)); |
da983503 HV |
532 | #if 0 |
533 | /* TODO: set up cx231xx audio chip to deliver the correct audio format, | |
534 | current default is 48000hz multiplexed => 96000hz mono | |
535 | which shouldn't matter since analogue TV only supports mono */ | |
536 | unsigned int channels, rate, format; | |
537 | ||
e0d3bafd SD |
538 | format = params_format(hw_params); |
539 | rate = params_rate(hw_params); | |
540 | channels = params_channels(hw_params); | |
da983503 | 541 | #endif |
e0d3bafd | 542 | |
da983503 | 543 | return ret; |
e0d3bafd SD |
544 | } |
545 | ||
546 | static int snd_cx231xx_hw_capture_free(struct snd_pcm_substream *substream) | |
547 | { | |
548 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
549 | ||
336fea92 | 550 | dev_dbg(dev->dev, "Stop capture, if needed\n"); |
e0d3bafd | 551 | |
61b04cb2 MCC |
552 | if (atomic_read(&dev->stream_started) > 0) { |
553 | atomic_set(&dev->stream_started, 0); | |
554 | schedule_work(&dev->wq_trigger); | |
555 | } | |
e0d3bafd SD |
556 | |
557 | return 0; | |
558 | } | |
559 | ||
560 | static int snd_cx231xx_prepare(struct snd_pcm_substream *substream) | |
561 | { | |
64fbf444 PB |
562 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
563 | ||
564 | dev->adev.hwptr_done_capture = 0; | |
565 | dev->adev.capture_transfer_done = 0; | |
566 | ||
e0d3bafd SD |
567 | return 0; |
568 | } | |
569 | ||
61b04cb2 MCC |
570 | static void audio_trigger(struct work_struct *work) |
571 | { | |
572 | struct cx231xx *dev = container_of(work, struct cx231xx, wq_trigger); | |
573 | ||
574 | if (atomic_read(&dev->stream_started)) { | |
336fea92 | 575 | dev_dbg(dev->dev, "starting capture"); |
61b04cb2 MCC |
576 | if (is_fw_load(dev) == 0) |
577 | cx25840_call(dev, core, load_fw); | |
578 | if (dev->USE_ISO) | |
579 | cx231xx_init_audio_isoc(dev); | |
580 | else | |
581 | cx231xx_init_audio_bulk(dev); | |
582 | } else { | |
336fea92 | 583 | dev_dbg(dev->dev, "stopping capture"); |
61b04cb2 MCC |
584 | cx231xx_isoc_audio_deinit(dev); |
585 | } | |
586 | } | |
587 | ||
e0d3bafd | 588 | static int snd_cx231xx_capture_trigger(struct snd_pcm_substream *substream, |
84b5dbf3 | 589 | int cmd) |
e0d3bafd SD |
590 | { |
591 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
da983503 | 592 | int retval = 0; |
e0d3bafd | 593 | |
990862a2 MCC |
594 | if (dev->state & DEV_DISCONNECTED) |
595 | return -ENODEV; | |
596 | ||
84b5dbf3 | 597 | spin_lock(&dev->adev.slock); |
e0d3bafd SD |
598 | switch (cmd) { |
599 | case SNDRV_PCM_TRIGGER_START: | |
61b04cb2 | 600 | atomic_set(&dev->stream_started, 1); |
e0d3bafd SD |
601 | break; |
602 | case SNDRV_PCM_TRIGGER_STOP: | |
61b04cb2 | 603 | atomic_set(&dev->stream_started, 0); |
84b5dbf3 | 604 | break; |
e0d3bafd SD |
605 | default: |
606 | retval = -EINVAL; | |
da983503 | 607 | break; |
e0d3bafd | 608 | } |
84b5dbf3 | 609 | spin_unlock(&dev->adev.slock); |
61b04cb2 MCC |
610 | |
611 | schedule_work(&dev->wq_trigger); | |
612 | ||
da983503 | 613 | return retval; |
e0d3bafd SD |
614 | } |
615 | ||
616 | static snd_pcm_uframes_t snd_cx231xx_capture_pointer(struct snd_pcm_substream | |
84b5dbf3 | 617 | *substream) |
e0d3bafd SD |
618 | { |
619 | struct cx231xx *dev; | |
84b5dbf3 | 620 | unsigned long flags; |
e0d3bafd SD |
621 | snd_pcm_uframes_t hwptr_done; |
622 | ||
623 | dev = snd_pcm_substream_chip(substream); | |
624 | ||
84b5dbf3 | 625 | spin_lock_irqsave(&dev->adev.slock, flags); |
e0d3bafd | 626 | hwptr_done = dev->adev.hwptr_done_capture; |
84b5dbf3 | 627 | spin_unlock_irqrestore(&dev->adev.slock, flags); |
e0d3bafd SD |
628 | |
629 | return hwptr_done; | |
630 | } | |
631 | ||
632 | static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs, | |
633 | unsigned long offset) | |
634 | { | |
635 | void *pageptr = subs->runtime->dma_area + offset; | |
636 | ||
637 | return vmalloc_to_page(pageptr); | |
638 | } | |
639 | ||
640 | static struct snd_pcm_ops snd_cx231xx_pcm_capture = { | |
84b5dbf3 MCC |
641 | .open = snd_cx231xx_capture_open, |
642 | .close = snd_cx231xx_pcm_close, | |
643 | .ioctl = snd_pcm_lib_ioctl, | |
e0d3bafd | 644 | .hw_params = snd_cx231xx_hw_capture_params, |
84b5dbf3 MCC |
645 | .hw_free = snd_cx231xx_hw_capture_free, |
646 | .prepare = snd_cx231xx_prepare, | |
647 | .trigger = snd_cx231xx_capture_trigger, | |
648 | .pointer = snd_cx231xx_capture_pointer, | |
649 | .page = snd_pcm_get_vmalloc_page, | |
e0d3bafd SD |
650 | }; |
651 | ||
652 | static int cx231xx_audio_init(struct cx231xx *dev) | |
653 | { | |
654 | struct cx231xx_audio *adev = &dev->adev; | |
84b5dbf3 MCC |
655 | struct snd_pcm *pcm; |
656 | struct snd_card *card; | |
657 | static int devnr; | |
658 | int err; | |
659 | struct usb_interface *uif; | |
660 | int i, isoc_pipe = 0; | |
e0d3bafd SD |
661 | |
662 | if (dev->has_alsa_audio != 1) { | |
663 | /* This device does not support the extension (in this case | |
664 | the device is expecting the snd-usb-audio module or | |
665 | doesn't have analog audio support at all) */ | |
666 | return 0; | |
667 | } | |
668 | ||
336fea92 | 669 | dev_dbg(dev->dev, |
b7085c08 | 670 | "probing for cx231xx non standard usbaudio\n"); |
e0d3bafd | 671 | |
336fea92 | 672 | err = snd_card_new(dev->dev, index[devnr], "Cx231xx Audio", |
e7356888 | 673 | THIS_MODULE, 0, &card); |
a938b8c5 MCC |
674 | if (err < 0) |
675 | return err; | |
e0d3bafd SD |
676 | |
677 | spin_lock_init(&adev->slock); | |
678 | err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm); | |
679 | if (err < 0) { | |
680 | snd_card_free(card); | |
681 | return err; | |
682 | } | |
683 | ||
84b5dbf3 MCC |
684 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, |
685 | &snd_cx231xx_pcm_capture); | |
e0d3bafd SD |
686 | pcm->info_flags = 0; |
687 | pcm->private_data = dev; | |
688 | strcpy(pcm->name, "Conexant cx231xx Capture"); | |
935539c9 | 689 | strcpy(card->driver, "Cx231xx-Audio"); |
e0d3bafd SD |
690 | strcpy(card->shortname, "Cx231xx Audio"); |
691 | strcpy(card->longname, "Conexant cx231xx Audio"); | |
692 | ||
61b04cb2 MCC |
693 | INIT_WORK(&dev->wq_trigger, audio_trigger); |
694 | ||
e0d3bafd SD |
695 | err = snd_card_register(card); |
696 | if (err < 0) { | |
697 | snd_card_free(card); | |
698 | return err; | |
699 | } | |
700 | adev->sndcard = card; | |
701 | adev->udev = dev->udev; | |
702 | ||
84b5dbf3 MCC |
703 | /* compute alternate max packet sizes for Audio */ |
704 | uif = | |
705 | dev->udev->actconfig->interface[dev->current_pcb_config. | |
706 | hs_config_info[0].interface_info. | |
707 | audio_index + 1]; | |
e0d3bafd | 708 | |
84b5dbf3 | 709 | adev->end_point_addr = |
69a11a32 HV |
710 | uif->altsetting[0].endpoint[isoc_pipe].desc. |
711 | bEndpointAddress; | |
e0d3bafd | 712 | |
84b5dbf3 | 713 | adev->num_alt = uif->num_altsetting; |
336fea92 | 714 | dev_info(dev->dev, |
b7085c08 | 715 | "audio EndPoint Addr 0x%x, Alternate settings: %i\n", |
ed0e3729 | 716 | adev->end_point_addr, adev->num_alt); |
84b5dbf3 | 717 | adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL); |
e0d3bafd | 718 | |
ed0e3729 | 719 | if (adev->alt_max_pkt_size == NULL) |
84b5dbf3 | 720 | return -ENOMEM; |
e0d3bafd | 721 | |
84b5dbf3 MCC |
722 | for (i = 0; i < adev->num_alt; i++) { |
723 | u16 tmp = | |
724 | le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc. | |
725 | wMaxPacketSize); | |
726 | adev->alt_max_pkt_size[i] = | |
727 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
336fea92 | 728 | dev_dbg(dev->dev, |
b7085c08 MCC |
729 | "audio alternate setting %i, max size= %i\n", i, |
730 | adev->alt_max_pkt_size[i]); | |
84b5dbf3 | 731 | } |
e0d3bafd SD |
732 | |
733 | return 0; | |
734 | } | |
735 | ||
736 | static int cx231xx_audio_fini(struct cx231xx *dev) | |
737 | { | |
738 | if (dev == NULL) | |
739 | return 0; | |
740 | ||
741 | if (dev->has_alsa_audio != 1) { | |
742 | /* This device does not support the extension (in this case | |
743 | the device is expecting the snd-usb-audio module or | |
744 | doesn't have analog audio support at all) */ | |
745 | return 0; | |
746 | } | |
747 | ||
748 | if (dev->adev.sndcard) { | |
749 | snd_card_free(dev->adev.sndcard); | |
84b5dbf3 | 750 | kfree(dev->adev.alt_max_pkt_size); |
e0d3bafd SD |
751 | dev->adev.sndcard = NULL; |
752 | } | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
757 | static struct cx231xx_ops audio_ops = { | |
84b5dbf3 | 758 | .id = CX231XX_AUDIO, |
e0d3bafd SD |
759 | .name = "Cx231xx Audio Extension", |
760 | .init = cx231xx_audio_init, | |
761 | .fini = cx231xx_audio_fini, | |
762 | }; | |
763 | ||
764 | static int __init cx231xx_alsa_register(void) | |
765 | { | |
766 | return cx231xx_register_extension(&audio_ops); | |
767 | } | |
768 | ||
769 | static void __exit cx231xx_alsa_unregister(void) | |
770 | { | |
771 | cx231xx_unregister_extension(&audio_ops); | |
772 | } | |
773 | ||
774 | MODULE_LICENSE("GPL"); | |
775 | MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>"); | |
776 | MODULE_DESCRIPTION("Cx231xx Audio driver"); | |
777 | ||
778 | module_init(cx231xx_alsa_register); | |
779 | module_exit(cx231xx_alsa_unregister); |