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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 | ||
23 | #include <linux/kernel.h> | |
24 | #include <linux/usb.h> | |
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> | |
40 | #include "cx231xx.h" | |
e0d3bafd SD |
41 | |
42 | static int debug; | |
43 | module_param(debug, int, 0644); | |
44 | MODULE_PARM_DESC(debug, "activates debug info"); | |
45 | ||
46 | #define dprintk(fmt, arg...) do { \ | |
6e4f574b SD |
47 | if (debug) \ |
48 | printk(KERN_INFO "cx231xx-audio %s: " fmt, \ | |
49 | __func__, ##arg); \ | |
e0d3bafd SD |
50 | } while (0) |
51 | ||
52 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; | |
53 | ||
54 | static int cx231xx_isoc_audio_deinit(struct cx231xx *dev) | |
55 | { | |
56 | int i; | |
57 | ||
58 | dprintk("Stopping isoc\n"); | |
59 | ||
e0d3bafd | 60 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { |
84b5dbf3 MCC |
61 | if (dev->adev.urb[i]) { |
62 | if (!irqs_disabled()) | |
63 | usb_kill_urb(dev->adev.urb[i]); | |
64 | else | |
65 | usb_unlink_urb(dev->adev.urb[i]); | |
e0d3bafd | 66 | |
84b5dbf3 MCC |
67 | usb_free_urb(dev->adev.urb[i]); |
68 | dev->adev.urb[i] = NULL; | |
e0d3bafd | 69 | |
84b5dbf3 MCC |
70 | kfree(dev->adev.transfer_buffer[i]); |
71 | dev->adev.transfer_buffer[i] = NULL; | |
84b5dbf3 | 72 | } |
e0d3bafd SD |
73 | } |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
64fbf444 PB |
78 | static int cx231xx_bulk_audio_deinit(struct cx231xx *dev) |
79 | { | |
80 | int i; | |
81 | ||
82 | dprintk("Stopping bulk\n"); | |
83 | ||
84 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
85 | if (dev->adev.urb[i]) { | |
86 | if (!irqs_disabled()) | |
87 | usb_kill_urb(dev->adev.urb[i]); | |
88 | else | |
89 | usb_unlink_urb(dev->adev.urb[i]); | |
90 | ||
91 | usb_free_urb(dev->adev.urb[i]); | |
92 | dev->adev.urb[i] = NULL; | |
93 | ||
94 | kfree(dev->adev.transfer_buffer[i]); | |
95 | dev->adev.transfer_buffer[i] = NULL; | |
96 | } | |
97 | } | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
e0d3bafd SD |
102 | static void cx231xx_audio_isocirq(struct urb *urb) |
103 | { | |
84b5dbf3 MCC |
104 | struct cx231xx *dev = urb->context; |
105 | int i; | |
106 | unsigned int oldptr; | |
107 | int period_elapsed = 0; | |
108 | int status; | |
109 | unsigned char *cp; | |
110 | unsigned int stride; | |
e0d3bafd | 111 | struct snd_pcm_substream *substream; |
84b5dbf3 MCC |
112 | struct snd_pcm_runtime *runtime; |
113 | ||
990862a2 MCC |
114 | if (dev->state & DEV_DISCONNECTED) |
115 | return; | |
116 | ||
84b5dbf3 MCC |
117 | switch (urb->status) { |
118 | case 0: /* success */ | |
119 | case -ETIMEDOUT: /* NAK */ | |
120 | break; | |
121 | case -ECONNRESET: /* kill */ | |
122 | case -ENOENT: | |
123 | case -ESHUTDOWN: | |
124 | return; | |
125 | default: /* error */ | |
126 | dprintk("urb completition error %d.\n", urb->status); | |
127 | break; | |
e0d3bafd SD |
128 | } |
129 | ||
61b04cb2 MCC |
130 | if (atomic_read(&dev->stream_started) == 0) |
131 | return; | |
132 | ||
e0d3bafd SD |
133 | if (dev->adev.capture_pcm_substream) { |
134 | substream = dev->adev.capture_pcm_substream; | |
135 | runtime = substream->runtime; | |
136 | stride = runtime->frame_bits >> 3; | |
137 | ||
138 | for (i = 0; i < urb->number_of_packets; i++) { | |
cde4362f MCC |
139 | int length = urb->iso_frame_desc[i].actual_length / |
140 | stride; | |
e0d3bafd | 141 | cp = (unsigned char *)urb->transfer_buffer + |
cde4362f | 142 | urb->iso_frame_desc[i].offset; |
e0d3bafd SD |
143 | |
144 | if (!length) | |
145 | continue; | |
146 | ||
147 | oldptr = dev->adev.hwptr_done_capture; | |
148 | if (oldptr + length >= runtime->buffer_size) { | |
cde4362f MCC |
149 | unsigned int cnt; |
150 | ||
151 | cnt = runtime->buffer_size - oldptr; | |
e0d3bafd SD |
152 | memcpy(runtime->dma_area + oldptr * stride, cp, |
153 | cnt * stride); | |
154 | memcpy(runtime->dma_area, cp + cnt * stride, | |
155 | length * stride - cnt * stride); | |
156 | } else { | |
157 | memcpy(runtime->dma_area + oldptr * stride, cp, | |
158 | length * stride); | |
159 | } | |
160 | ||
161 | snd_pcm_stream_lock(substream); | |
162 | ||
163 | dev->adev.hwptr_done_capture += length; | |
b9255176 SD |
164 | if (dev->adev.hwptr_done_capture >= |
165 | runtime->buffer_size) | |
166 | dev->adev.hwptr_done_capture -= | |
167 | runtime->buffer_size; | |
e0d3bafd SD |
168 | |
169 | dev->adev.capture_transfer_done += length; | |
b9255176 SD |
170 | if (dev->adev.capture_transfer_done >= |
171 | runtime->period_size) { | |
172 | dev->adev.capture_transfer_done -= | |
173 | runtime->period_size; | |
e0d3bafd SD |
174 | period_elapsed = 1; |
175 | } | |
e0d3bafd SD |
176 | snd_pcm_stream_unlock(substream); |
177 | } | |
178 | if (period_elapsed) | |
179 | snd_pcm_period_elapsed(substream); | |
180 | } | |
181 | urb->status = 0; | |
182 | ||
183 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
184 | if (status < 0) { | |
185 | cx231xx_errdev("resubmit of audio urb failed (error=%i)\n", | |
84b5dbf3 | 186 | status); |
e0d3bafd SD |
187 | } |
188 | return; | |
189 | } | |
190 | ||
64fbf444 PB |
191 | static void cx231xx_audio_bulkirq(struct urb *urb) |
192 | { | |
193 | struct cx231xx *dev = urb->context; | |
194 | unsigned int oldptr; | |
195 | int period_elapsed = 0; | |
196 | int status; | |
197 | unsigned char *cp; | |
198 | unsigned int stride; | |
199 | struct snd_pcm_substream *substream; | |
200 | struct snd_pcm_runtime *runtime; | |
201 | ||
990862a2 MCC |
202 | if (dev->state & DEV_DISCONNECTED) |
203 | return; | |
204 | ||
64fbf444 PB |
205 | switch (urb->status) { |
206 | case 0: /* success */ | |
207 | case -ETIMEDOUT: /* NAK */ | |
208 | break; | |
209 | case -ECONNRESET: /* kill */ | |
210 | case -ENOENT: | |
211 | case -ESHUTDOWN: | |
212 | return; | |
213 | default: /* error */ | |
214 | dprintk("urb completition error %d.\n", urb->status); | |
215 | break; | |
216 | } | |
217 | ||
61b04cb2 MCC |
218 | if (atomic_read(&dev->stream_started) == 0) |
219 | return; | |
220 | ||
64fbf444 PB |
221 | if (dev->adev.capture_pcm_substream) { |
222 | substream = dev->adev.capture_pcm_substream; | |
223 | runtime = substream->runtime; | |
224 | stride = runtime->frame_bits >> 3; | |
225 | ||
226 | if (1) { | |
227 | int length = urb->actual_length / | |
228 | stride; | |
229 | cp = (unsigned char *)urb->transfer_buffer; | |
230 | ||
231 | oldptr = dev->adev.hwptr_done_capture; | |
232 | if (oldptr + length >= runtime->buffer_size) { | |
233 | unsigned int cnt; | |
234 | ||
235 | cnt = runtime->buffer_size - oldptr; | |
236 | memcpy(runtime->dma_area + oldptr * stride, cp, | |
237 | cnt * stride); | |
238 | memcpy(runtime->dma_area, cp + cnt * stride, | |
239 | length * stride - cnt * stride); | |
240 | } else { | |
241 | memcpy(runtime->dma_area + oldptr * stride, cp, | |
242 | length * stride); | |
243 | } | |
244 | ||
245 | snd_pcm_stream_lock(substream); | |
246 | ||
247 | dev->adev.hwptr_done_capture += length; | |
248 | if (dev->adev.hwptr_done_capture >= | |
249 | runtime->buffer_size) | |
250 | dev->adev.hwptr_done_capture -= | |
251 | runtime->buffer_size; | |
252 | ||
253 | dev->adev.capture_transfer_done += length; | |
254 | if (dev->adev.capture_transfer_done >= | |
255 | runtime->period_size) { | |
256 | dev->adev.capture_transfer_done -= | |
257 | runtime->period_size; | |
258 | period_elapsed = 1; | |
259 | } | |
260 | snd_pcm_stream_unlock(substream); | |
261 | } | |
262 | if (period_elapsed) | |
263 | snd_pcm_period_elapsed(substream); | |
264 | } | |
265 | urb->status = 0; | |
266 | ||
267 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
268 | if (status < 0) { | |
269 | cx231xx_errdev("resubmit of audio urb failed (error=%i)\n", | |
270 | status); | |
271 | } | |
272 | return; | |
273 | } | |
274 | ||
e0d3bafd SD |
275 | static int cx231xx_init_audio_isoc(struct cx231xx *dev) |
276 | { | |
84b5dbf3 MCC |
277 | int i, errCode; |
278 | int sb_size; | |
e0d3bafd | 279 | |
64fbf444 | 280 | cx231xx_info("%s: Starting ISO AUDIO transfers\n", __func__); |
e0d3bafd | 281 | |
990862a2 MCC |
282 | if (dev->state & DEV_DISCONNECTED) |
283 | return -ENODEV; | |
284 | ||
64fbf444 | 285 | sb_size = CX231XX_ISO_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size; |
e0d3bafd SD |
286 | |
287 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
288 | struct urb *urb; | |
289 | int j, k; | |
290 | ||
291 | dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); | |
292 | if (!dev->adev.transfer_buffer[i]) | |
293 | return -ENOMEM; | |
294 | ||
295 | memset(dev->adev.transfer_buffer[i], 0x80, sb_size); | |
64fbf444 | 296 | urb = usb_alloc_urb(CX231XX_ISO_NUM_AUDIO_PACKETS, GFP_ATOMIC); |
e0d3bafd SD |
297 | if (!urb) { |
298 | cx231xx_errdev("usb_alloc_urb failed!\n"); | |
299 | for (j = 0; j < i; j++) { | |
300 | usb_free_urb(dev->adev.urb[j]); | |
301 | kfree(dev->adev.transfer_buffer[j]); | |
302 | } | |
303 | return -ENOMEM; | |
304 | } | |
305 | ||
306 | urb->dev = dev->udev; | |
307 | urb->context = dev; | |
b9255176 SD |
308 | urb->pipe = usb_rcvisocpipe(dev->udev, |
309 | dev->adev.end_point_addr); | |
cd5534be | 310 | urb->transfer_flags = URB_ISO_ASAP; |
e0d3bafd SD |
311 | urb->transfer_buffer = dev->adev.transfer_buffer[i]; |
312 | urb->interval = 1; | |
313 | urb->complete = cx231xx_audio_isocirq; | |
64fbf444 | 314 | urb->number_of_packets = CX231XX_ISO_NUM_AUDIO_PACKETS; |
e0d3bafd SD |
315 | urb->transfer_buffer_length = sb_size; |
316 | ||
64fbf444 | 317 | for (j = k = 0; j < CX231XX_ISO_NUM_AUDIO_PACKETS; |
b9255176 | 318 | j++, k += dev->adev.max_pkt_size) { |
e0d3bafd | 319 | urb->iso_frame_desc[j].offset = k; |
84b5dbf3 | 320 | urb->iso_frame_desc[j].length = dev->adev.max_pkt_size; |
e0d3bafd SD |
321 | } |
322 | dev->adev.urb[i] = urb; | |
323 | } | |
324 | ||
325 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
326 | errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); | |
327 | if (errCode < 0) { | |
328 | cx231xx_isoc_audio_deinit(dev); | |
329 | return errCode; | |
330 | } | |
331 | } | |
332 | ||
333 | return errCode; | |
334 | } | |
335 | ||
64fbf444 PB |
336 | static int cx231xx_init_audio_bulk(struct cx231xx *dev) |
337 | { | |
338 | int i, errCode; | |
339 | int sb_size; | |
340 | ||
341 | cx231xx_info("%s: Starting BULK AUDIO transfers\n", __func__); | |
342 | ||
990862a2 MCC |
343 | if (dev->state & DEV_DISCONNECTED) |
344 | return -ENODEV; | |
345 | ||
64fbf444 PB |
346 | sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size; |
347 | ||
348 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
349 | struct urb *urb; | |
350 | int j; | |
351 | ||
352 | dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC); | |
353 | if (!dev->adev.transfer_buffer[i]) | |
354 | return -ENOMEM; | |
355 | ||
356 | memset(dev->adev.transfer_buffer[i], 0x80, sb_size); | |
357 | urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC); | |
358 | if (!urb) { | |
359 | cx231xx_errdev("usb_alloc_urb failed!\n"); | |
360 | for (j = 0; j < i; j++) { | |
361 | usb_free_urb(dev->adev.urb[j]); | |
362 | kfree(dev->adev.transfer_buffer[j]); | |
363 | } | |
364 | return -ENOMEM; | |
365 | } | |
366 | ||
367 | urb->dev = dev->udev; | |
368 | urb->context = dev; | |
369 | urb->pipe = usb_rcvbulkpipe(dev->udev, | |
370 | dev->adev.end_point_addr); | |
cd5534be | 371 | urb->transfer_flags = 0; |
64fbf444 PB |
372 | urb->transfer_buffer = dev->adev.transfer_buffer[i]; |
373 | urb->complete = cx231xx_audio_bulkirq; | |
374 | urb->transfer_buffer_length = sb_size; | |
375 | ||
376 | dev->adev.urb[i] = urb; | |
377 | ||
378 | } | |
379 | ||
380 | for (i = 0; i < CX231XX_AUDIO_BUFS; i++) { | |
381 | errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC); | |
382 | if (errCode < 0) { | |
383 | cx231xx_bulk_audio_deinit(dev); | |
384 | return errCode; | |
385 | } | |
386 | } | |
387 | ||
388 | return errCode; | |
389 | } | |
390 | ||
e0d3bafd SD |
391 | static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, |
392 | size_t size) | |
393 | { | |
394 | struct snd_pcm_runtime *runtime = subs->runtime; | |
395 | ||
396 | dprintk("Allocating vbuffer\n"); | |
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 | ||
439 | dprintk("opening device and trying to acquire exclusive lock\n"); | |
440 | ||
441 | if (!dev) { | |
442 | cx231xx_errdev("BUG: cx231xx can't find device struct." | |
84b5dbf3 | 443 | " Can't proceed with open\n"); |
e0d3bafd SD |
444 | return -ENODEV; |
445 | } | |
446 | ||
990862a2 MCC |
447 | if (dev->state & DEV_DISCONNECTED) { |
448 | cx231xx_errdev("Can't open. the device was removed.\n"); | |
449 | return -ENODEV; | |
450 | } | |
451 | ||
84b5dbf3 | 452 | /* set alternate setting for audio interface */ |
b9255176 | 453 | /* 1 - 48000 samples per sec */ |
61b04cb2 | 454 | mutex_lock(&dev->lock); |
64fbf444 PB |
455 | if (dev->USE_ISO) |
456 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1); | |
457 | else | |
458 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0); | |
61b04cb2 | 459 | mutex_unlock(&dev->lock); |
84b5dbf3 MCC |
460 | if (ret < 0) { |
461 | cx231xx_errdev("failed to set alternate setting !\n"); | |
e0d3bafd | 462 | |
84b5dbf3 MCC |
463 | return ret; |
464 | } | |
e0d3bafd | 465 | |
e0d3bafd SD |
466 | runtime->hw = snd_cx231xx_hw_capture; |
467 | ||
84b5dbf3 | 468 | mutex_lock(&dev->lock); |
61b04cb2 MCC |
469 | /* inform hardware to start streaming */ |
470 | ret = cx231xx_capture_start(dev, 1, Audio); | |
471 | ||
e0d3bafd | 472 | dev->adev.users++; |
84b5dbf3 | 473 | mutex_unlock(&dev->lock); |
e0d3bafd SD |
474 | |
475 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
476 | dev->adev.capture_pcm_substream = substream; | |
477 | runtime->private_data = dev; | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
482 | static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream) | |
483 | { | |
84b5dbf3 | 484 | int ret; |
e0d3bafd SD |
485 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
486 | ||
e0d3bafd SD |
487 | dprintk("closing device\n"); |
488 | ||
61b04cb2 MCC |
489 | /* inform hardware to stop streaming */ |
490 | mutex_lock(&dev->lock); | |
64fbf444 PB |
491 | ret = cx231xx_capture_start(dev, 0, Audio); |
492 | ||
84b5dbf3 | 493 | /* set alternate setting for audio interface */ |
b9255176 SD |
494 | /* 1 - 48000 samples per sec */ |
495 | ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0); | |
84b5dbf3 MCC |
496 | if (ret < 0) { |
497 | cx231xx_errdev("failed to set alternate setting !\n"); | |
e0d3bafd | 498 | |
61b04cb2 | 499 | mutex_unlock(&dev->lock); |
84b5dbf3 MCC |
500 | return ret; |
501 | } | |
e0d3bafd | 502 | |
84b5dbf3 | 503 | dev->adev.users--; |
e0d3bafd SD |
504 | mutex_unlock(&dev->lock); |
505 | ||
506 | if (dev->adev.users == 0 && dev->adev.shutdown == 1) { | |
507 | dprintk("audio users: %d\n", dev->adev.users); | |
508 | dprintk("disabling audio stream!\n"); | |
509 | dev->adev.shutdown = 0; | |
510 | dprintk("released lock\n"); | |
61b04cb2 MCC |
511 | if (atomic_read(&dev->stream_started) > 0) { |
512 | atomic_set(&dev->stream_started, 0); | |
513 | schedule_work(&dev->wq_trigger); | |
514 | } | |
e0d3bafd SD |
515 | } |
516 | return 0; | |
517 | } | |
518 | ||
519 | static int snd_cx231xx_hw_capture_params(struct snd_pcm_substream *substream, | |
84b5dbf3 | 520 | struct snd_pcm_hw_params *hw_params) |
e0d3bafd | 521 | { |
e0d3bafd SD |
522 | int ret; |
523 | ||
524 | dprintk("Setting capture parameters\n"); | |
525 | ||
526 | ret = snd_pcm_alloc_vmalloc_buffer(substream, | |
84b5dbf3 | 527 | params_buffer_bytes(hw_params)); |
da983503 HV |
528 | #if 0 |
529 | /* TODO: set up cx231xx audio chip to deliver the correct audio format, | |
530 | current default is 48000hz multiplexed => 96000hz mono | |
531 | which shouldn't matter since analogue TV only supports mono */ | |
532 | unsigned int channels, rate, format; | |
533 | ||
e0d3bafd SD |
534 | format = params_format(hw_params); |
535 | rate = params_rate(hw_params); | |
536 | channels = params_channels(hw_params); | |
da983503 | 537 | #endif |
e0d3bafd | 538 | |
da983503 | 539 | return ret; |
e0d3bafd SD |
540 | } |
541 | ||
542 | static int snd_cx231xx_hw_capture_free(struct snd_pcm_substream *substream) | |
543 | { | |
544 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
545 | ||
546 | dprintk("Stop capture, if needed\n"); | |
547 | ||
61b04cb2 MCC |
548 | if (atomic_read(&dev->stream_started) > 0) { |
549 | atomic_set(&dev->stream_started, 0); | |
550 | schedule_work(&dev->wq_trigger); | |
551 | } | |
e0d3bafd SD |
552 | |
553 | return 0; | |
554 | } | |
555 | ||
556 | static int snd_cx231xx_prepare(struct snd_pcm_substream *substream) | |
557 | { | |
64fbf444 PB |
558 | struct cx231xx *dev = snd_pcm_substream_chip(substream); |
559 | ||
560 | dev->adev.hwptr_done_capture = 0; | |
561 | dev->adev.capture_transfer_done = 0; | |
562 | ||
e0d3bafd SD |
563 | return 0; |
564 | } | |
565 | ||
61b04cb2 MCC |
566 | static void audio_trigger(struct work_struct *work) |
567 | { | |
568 | struct cx231xx *dev = container_of(work, struct cx231xx, wq_trigger); | |
569 | ||
570 | if (atomic_read(&dev->stream_started)) { | |
571 | dprintk("starting capture"); | |
572 | if (is_fw_load(dev) == 0) | |
573 | cx25840_call(dev, core, load_fw); | |
574 | if (dev->USE_ISO) | |
575 | cx231xx_init_audio_isoc(dev); | |
576 | else | |
577 | cx231xx_init_audio_bulk(dev); | |
578 | } else { | |
579 | dprintk("stopping capture"); | |
580 | cx231xx_isoc_audio_deinit(dev); | |
581 | } | |
582 | } | |
583 | ||
e0d3bafd | 584 | static int snd_cx231xx_capture_trigger(struct snd_pcm_substream *substream, |
84b5dbf3 | 585 | int cmd) |
e0d3bafd SD |
586 | { |
587 | struct cx231xx *dev = snd_pcm_substream_chip(substream); | |
da983503 | 588 | int retval = 0; |
e0d3bafd | 589 | |
990862a2 MCC |
590 | if (dev->state & DEV_DISCONNECTED) |
591 | return -ENODEV; | |
592 | ||
84b5dbf3 | 593 | spin_lock(&dev->adev.slock); |
e0d3bafd SD |
594 | switch (cmd) { |
595 | case SNDRV_PCM_TRIGGER_START: | |
61b04cb2 | 596 | atomic_set(&dev->stream_started, 1); |
e0d3bafd SD |
597 | break; |
598 | case SNDRV_PCM_TRIGGER_STOP: | |
61b04cb2 | 599 | atomic_set(&dev->stream_started, 0); |
84b5dbf3 | 600 | break; |
e0d3bafd SD |
601 | default: |
602 | retval = -EINVAL; | |
da983503 | 603 | break; |
e0d3bafd | 604 | } |
84b5dbf3 | 605 | spin_unlock(&dev->adev.slock); |
61b04cb2 MCC |
606 | |
607 | schedule_work(&dev->wq_trigger); | |
608 | ||
da983503 | 609 | return retval; |
e0d3bafd SD |
610 | } |
611 | ||
612 | static snd_pcm_uframes_t snd_cx231xx_capture_pointer(struct snd_pcm_substream | |
84b5dbf3 | 613 | *substream) |
e0d3bafd SD |
614 | { |
615 | struct cx231xx *dev; | |
84b5dbf3 | 616 | unsigned long flags; |
e0d3bafd SD |
617 | snd_pcm_uframes_t hwptr_done; |
618 | ||
619 | dev = snd_pcm_substream_chip(substream); | |
620 | ||
84b5dbf3 | 621 | spin_lock_irqsave(&dev->adev.slock, flags); |
e0d3bafd | 622 | hwptr_done = dev->adev.hwptr_done_capture; |
84b5dbf3 | 623 | spin_unlock_irqrestore(&dev->adev.slock, flags); |
e0d3bafd SD |
624 | |
625 | return hwptr_done; | |
626 | } | |
627 | ||
628 | static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs, | |
629 | unsigned long offset) | |
630 | { | |
631 | void *pageptr = subs->runtime->dma_area + offset; | |
632 | ||
633 | return vmalloc_to_page(pageptr); | |
634 | } | |
635 | ||
636 | static struct snd_pcm_ops snd_cx231xx_pcm_capture = { | |
84b5dbf3 MCC |
637 | .open = snd_cx231xx_capture_open, |
638 | .close = snd_cx231xx_pcm_close, | |
639 | .ioctl = snd_pcm_lib_ioctl, | |
e0d3bafd | 640 | .hw_params = snd_cx231xx_hw_capture_params, |
84b5dbf3 MCC |
641 | .hw_free = snd_cx231xx_hw_capture_free, |
642 | .prepare = snd_cx231xx_prepare, | |
643 | .trigger = snd_cx231xx_capture_trigger, | |
644 | .pointer = snd_cx231xx_capture_pointer, | |
645 | .page = snd_pcm_get_vmalloc_page, | |
e0d3bafd SD |
646 | }; |
647 | ||
648 | static int cx231xx_audio_init(struct cx231xx *dev) | |
649 | { | |
650 | struct cx231xx_audio *adev = &dev->adev; | |
84b5dbf3 MCC |
651 | struct snd_pcm *pcm; |
652 | struct snd_card *card; | |
653 | static int devnr; | |
654 | int err; | |
655 | struct usb_interface *uif; | |
656 | int i, isoc_pipe = 0; | |
e0d3bafd SD |
657 | |
658 | if (dev->has_alsa_audio != 1) { | |
659 | /* This device does not support the extension (in this case | |
660 | the device is expecting the snd-usb-audio module or | |
661 | doesn't have analog audio support at all) */ | |
662 | return 0; | |
663 | } | |
664 | ||
665 | cx231xx_info("cx231xx-audio.c: probing for cx231xx " | |
84b5dbf3 | 666 | "non standard usbaudio\n"); |
e0d3bafd | 667 | |
a938b8c5 MCC |
668 | err = snd_card_create(index[devnr], "Cx231xx Audio", THIS_MODULE, |
669 | 0, &card); | |
670 | if (err < 0) | |
671 | return err; | |
e0d3bafd SD |
672 | |
673 | spin_lock_init(&adev->slock); | |
674 | err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm); | |
675 | if (err < 0) { | |
676 | snd_card_free(card); | |
677 | return err; | |
678 | } | |
679 | ||
84b5dbf3 MCC |
680 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, |
681 | &snd_cx231xx_pcm_capture); | |
e0d3bafd SD |
682 | pcm->info_flags = 0; |
683 | pcm->private_data = dev; | |
684 | strcpy(pcm->name, "Conexant cx231xx Capture"); | |
64fbf444 | 685 | snd_card_set_dev(card, &dev->udev->dev); |
935539c9 | 686 | strcpy(card->driver, "Cx231xx-Audio"); |
e0d3bafd SD |
687 | strcpy(card->shortname, "Cx231xx Audio"); |
688 | strcpy(card->longname, "Conexant cx231xx Audio"); | |
689 | ||
61b04cb2 MCC |
690 | INIT_WORK(&dev->wq_trigger, audio_trigger); |
691 | ||
e0d3bafd SD |
692 | err = snd_card_register(card); |
693 | if (err < 0) { | |
694 | snd_card_free(card); | |
695 | return err; | |
696 | } | |
697 | adev->sndcard = card; | |
698 | adev->udev = dev->udev; | |
699 | ||
84b5dbf3 MCC |
700 | /* compute alternate max packet sizes for Audio */ |
701 | uif = | |
702 | dev->udev->actconfig->interface[dev->current_pcb_config. | |
703 | hs_config_info[0].interface_info. | |
704 | audio_index + 1]; | |
e0d3bafd | 705 | |
84b5dbf3 | 706 | adev->end_point_addr = |
69a11a32 HV |
707 | uif->altsetting[0].endpoint[isoc_pipe].desc. |
708 | bEndpointAddress; | |
e0d3bafd | 709 | |
84b5dbf3 | 710 | adev->num_alt = uif->num_altsetting; |
4be1ad36 | 711 | cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n", |
84b5dbf3 MCC |
712 | adev->end_point_addr, adev->num_alt); |
713 | adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL); | |
e0d3bafd | 714 | |
84b5dbf3 MCC |
715 | if (adev->alt_max_pkt_size == NULL) { |
716 | cx231xx_errdev("out of memory!\n"); | |
717 | return -ENOMEM; | |
718 | } | |
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); | |
726 | cx231xx_info("Alternate setting %i, max size= %i\n", i, | |
727 | adev->alt_max_pkt_size[i]); | |
728 | } | |
e0d3bafd SD |
729 | |
730 | return 0; | |
731 | } | |
732 | ||
733 | static int cx231xx_audio_fini(struct cx231xx *dev) | |
734 | { | |
735 | if (dev == NULL) | |
736 | return 0; | |
737 | ||
738 | if (dev->has_alsa_audio != 1) { | |
739 | /* This device does not support the extension (in this case | |
740 | the device is expecting the snd-usb-audio module or | |
741 | doesn't have analog audio support at all) */ | |
742 | return 0; | |
743 | } | |
744 | ||
745 | if (dev->adev.sndcard) { | |
746 | snd_card_free(dev->adev.sndcard); | |
84b5dbf3 | 747 | kfree(dev->adev.alt_max_pkt_size); |
e0d3bafd SD |
748 | dev->adev.sndcard = NULL; |
749 | } | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | static struct cx231xx_ops audio_ops = { | |
84b5dbf3 | 755 | .id = CX231XX_AUDIO, |
e0d3bafd SD |
756 | .name = "Cx231xx Audio Extension", |
757 | .init = cx231xx_audio_init, | |
758 | .fini = cx231xx_audio_fini, | |
759 | }; | |
760 | ||
761 | static int __init cx231xx_alsa_register(void) | |
762 | { | |
763 | return cx231xx_register_extension(&audio_ops); | |
764 | } | |
765 | ||
766 | static void __exit cx231xx_alsa_unregister(void) | |
767 | { | |
768 | cx231xx_unregister_extension(&audio_ops); | |
769 | } | |
770 | ||
771 | MODULE_LICENSE("GPL"); | |
772 | MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>"); | |
773 | MODULE_DESCRIPTION("Cx231xx Audio driver"); | |
774 | ||
775 | module_init(cx231xx_alsa_register); | |
776 | module_exit(cx231xx_alsa_unregister); |