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1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Main and PCM part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | * | |
28 | * NOTES: | |
29 | * | |
30 | * - async unlink should be used for avoiding the sleep inside lock. | |
31 | * 2.4.22 usb-uhci seems buggy for async unlinking and results in | |
32 | * oops. in such a cse, pass async_unlink=0 option. | |
33 | * - the linked URBs would be preferred but not used so far because of | |
34 | * the instability of unlinking. | |
35 | * - type II is not supported properly. there is no device which supports | |
36 | * this type *correctly*. SB extigy looks as if it supports, but it's | |
37 | * indeed an AC3 stream packed in SPDIF frames (i.e. no real AC3 stream). | |
38 | */ | |
39 | ||
40 | ||
1da177e4 LT |
41 | #include <linux/bitops.h> |
42 | #include <linux/init.h> | |
43 | #include <linux/list.h> | |
44 | #include <linux/slab.h> | |
45 | #include <linux/string.h> | |
46 | #include <linux/usb.h> | |
47 | #include <linux/moduleparam.h> | |
12aa7579 | 48 | #include <linux/mutex.h> |
28e1b773 | 49 | #include <linux/usb/audio.h> |
de48c7bc | 50 | #include <linux/usb/ch9.h> |
28e1b773 | 51 | |
1da177e4 LT |
52 | #include <sound/core.h> |
53 | #include <sound/info.h> | |
54 | #include <sound/pcm.h> | |
55 | #include <sound/pcm_params.h> | |
56 | #include <sound/initval.h> | |
57 | ||
58 | #include "usbaudio.h" | |
3e1aebef DM |
59 | #include "usbmidi.h" |
60 | #include "usbmixer.h" | |
1da177e4 LT |
61 | |
62 | MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); | |
63 | MODULE_DESCRIPTION("USB Audio"); | |
64 | MODULE_LICENSE("GPL"); | |
65 | MODULE_SUPPORTED_DEVICE("{{Generic,USB Audio}}"); | |
66 | ||
67 | ||
68 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
69 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
07f51a72 PM |
70 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card */ |
71 | /* Vendor/product IDs for this card */ | |
72 | static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; | |
73 | static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; | |
92b9ac78 | 74 | static int nrpacks = 8; /* max. number of packets per urb */ |
1da177e4 | 75 | static int async_unlink = 1; |
e311334e | 76 | static int device_setup[SNDRV_CARDS]; /* device parameter for this card*/ |
7a9b8063 | 77 | static int ignore_ctl_error; |
1da177e4 LT |
78 | |
79 | module_param_array(index, int, NULL, 0444); | |
80 | MODULE_PARM_DESC(index, "Index value for the USB audio adapter."); | |
81 | module_param_array(id, charp, NULL, 0444); | |
82 | MODULE_PARM_DESC(id, "ID string for the USB audio adapter."); | |
83 | module_param_array(enable, bool, NULL, 0444); | |
84 | MODULE_PARM_DESC(enable, "Enable USB audio adapter."); | |
85 | module_param_array(vid, int, NULL, 0444); | |
86 | MODULE_PARM_DESC(vid, "Vendor ID for the USB audio device."); | |
87 | module_param_array(pid, int, NULL, 0444); | |
88 | MODULE_PARM_DESC(pid, "Product ID for the USB audio device."); | |
71d848ca | 89 | module_param(nrpacks, int, 0644); |
1da177e4 LT |
90 | MODULE_PARM_DESC(nrpacks, "Max. number of packets per URB."); |
91 | module_param(async_unlink, bool, 0444); | |
92 | MODULE_PARM_DESC(async_unlink, "Use async unlink mode."); | |
e311334e TLM |
93 | module_param_array(device_setup, int, NULL, 0444); |
94 | MODULE_PARM_DESC(device_setup, "Specific device setup (if needed)."); | |
7a9b8063 TI |
95 | module_param(ignore_ctl_error, bool, 0444); |
96 | MODULE_PARM_DESC(ignore_ctl_error, | |
97 | "Ignore errors from USB controller for mixer interfaces."); | |
1da177e4 LT |
98 | |
99 | /* | |
100 | * debug the h/w constraints | |
101 | */ | |
102 | /* #define HW_CONST_DEBUG */ | |
103 | ||
104 | ||
105 | /* | |
106 | * | |
107 | */ | |
108 | ||
92b9ac78 | 109 | #define MAX_PACKS 20 |
1da177e4 | 110 | #define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed mode */ |
15a24c07 | 111 | #define MAX_URBS 8 |
604cf499 | 112 | #define SYNC_URBS 4 /* always four urbs for sync */ |
4d788e04 | 113 | #define MAX_QUEUE 24 /* try not to exceed this queue length, in ms */ |
1da177e4 | 114 | |
1da177e4 LT |
115 | struct audioformat { |
116 | struct list_head list; | |
117 | snd_pcm_format_t format; /* format type */ | |
118 | unsigned int channels; /* # channels */ | |
119 | unsigned int fmt_type; /* USB audio format type (1-3) */ | |
120 | unsigned int frame_size; /* samples per frame for non-audio */ | |
121 | int iface; /* interface number */ | |
122 | unsigned char altsetting; /* corresponding alternate setting */ | |
123 | unsigned char altset_idx; /* array index of altenate setting */ | |
124 | unsigned char attributes; /* corresponding attributes of cs endpoint */ | |
125 | unsigned char endpoint; /* endpoint */ | |
126 | unsigned char ep_attr; /* endpoint attributes */ | |
744b89e5 | 127 | unsigned char datainterval; /* log_2 of data packet interval */ |
1da177e4 LT |
128 | unsigned int maxpacksize; /* max. packet size */ |
129 | unsigned int rates; /* rate bitmasks */ | |
130 | unsigned int rate_min, rate_max; /* min/max rates */ | |
131 | unsigned int nr_rates; /* number of rate table entries */ | |
132 | unsigned int *rate_table; /* rate table */ | |
133 | }; | |
134 | ||
86e07d34 TI |
135 | struct snd_usb_substream; |
136 | ||
1da177e4 LT |
137 | struct snd_urb_ctx { |
138 | struct urb *urb; | |
55851f73 | 139 | unsigned int buffer_size; /* size of data buffer, if data URB */ |
86e07d34 | 140 | struct snd_usb_substream *subs; |
1da177e4 LT |
141 | int index; /* index for urb array */ |
142 | int packets; /* number of packets per urb */ | |
1da177e4 LT |
143 | }; |
144 | ||
145 | struct snd_urb_ops { | |
86e07d34 TI |
146 | int (*prepare)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); |
147 | int (*retire)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | |
148 | int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | |
149 | int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | |
1da177e4 LT |
150 | }; |
151 | ||
152 | struct snd_usb_substream { | |
86e07d34 | 153 | struct snd_usb_stream *stream; |
1da177e4 | 154 | struct usb_device *dev; |
86e07d34 | 155 | struct snd_pcm_substream *pcm_substream; |
1da177e4 LT |
156 | int direction; /* playback or capture */ |
157 | int interface; /* current interface */ | |
158 | int endpoint; /* assigned endpoint */ | |
159 | struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ | |
160 | unsigned int cur_rate; /* current rate (for hw_params callback) */ | |
161 | unsigned int period_bytes; /* current period bytes (for hw_params callback) */ | |
162 | unsigned int format; /* USB data format */ | |
163 | unsigned int datapipe; /* the data i/o pipe */ | |
164 | unsigned int syncpipe; /* 1 - async out or adaptive in */ | |
573567e0 | 165 | unsigned int datainterval; /* log_2 of data packet interval */ |
1da177e4 LT |
166 | unsigned int syncinterval; /* P for adaptive mode, 0 otherwise */ |
167 | unsigned int freqn; /* nominal sampling rate in fs/fps in Q16.16 format */ | |
168 | unsigned int freqm; /* momentary sampling rate in fs/fps in Q16.16 format */ | |
169 | unsigned int freqmax; /* maximum sampling rate, used for buffer management */ | |
170 | unsigned int phase; /* phase accumulator */ | |
171 | unsigned int maxpacksize; /* max packet size in bytes */ | |
172 | unsigned int maxframesize; /* max packet size in frames */ | |
173 | unsigned int curpacksize; /* current packet size in bytes (for capture) */ | |
174 | unsigned int curframesize; /* current packet size in frames (for capture) */ | |
175 | unsigned int fill_max: 1; /* fill max packet size always */ | |
98e89f60 | 176 | unsigned int txfr_quirk:1; /* allow sub-frame alignment */ |
1da177e4 LT |
177 | unsigned int fmt_type; /* USB audio format type (1-3) */ |
178 | ||
179 | unsigned int running: 1; /* running status */ | |
180 | ||
adc8d313 | 181 | unsigned int hwptr_done; /* processed byte position in the buffer */ |
1da177e4 LT |
182 | unsigned int transfer_done; /* processed frames since last period update */ |
183 | unsigned long active_mask; /* bitmask of active urbs */ | |
184 | unsigned long unlink_mask; /* bitmask of unlinked urbs */ | |
185 | ||
186 | unsigned int nurbs; /* # urbs */ | |
86e07d34 TI |
187 | struct snd_urb_ctx dataurb[MAX_URBS]; /* data urb table */ |
188 | struct snd_urb_ctx syncurb[SYNC_URBS]; /* sync urb table */ | |
55851f73 CL |
189 | char *syncbuf; /* sync buffer for all sync URBs */ |
190 | dma_addr_t sync_dma; /* DMA address of syncbuf */ | |
1da177e4 LT |
191 | |
192 | u64 formats; /* format bitmasks (all or'ed) */ | |
193 | unsigned int num_formats; /* number of supported audio formats (list) */ | |
194 | struct list_head fmt_list; /* format list */ | |
8fec560d | 195 | struct snd_pcm_hw_constraint_list rate_list; /* limited rates */ |
1da177e4 LT |
196 | spinlock_t lock; |
197 | ||
198 | struct snd_urb_ops ops; /* callbacks (must be filled at init) */ | |
199 | }; | |
200 | ||
201 | ||
202 | struct snd_usb_stream { | |
86e07d34 TI |
203 | struct snd_usb_audio *chip; |
204 | struct snd_pcm *pcm; | |
1da177e4 LT |
205 | int pcm_index; |
206 | unsigned int fmt_type; /* USB audio format type (1-3) */ | |
86e07d34 | 207 | struct snd_usb_substream substream[2]; |
1da177e4 LT |
208 | struct list_head list; |
209 | }; | |
210 | ||
211 | ||
212 | /* | |
213 | * we keep the snd_usb_audio_t instances by ourselves for merging | |
214 | * the all interfaces on the same card as one sound device. | |
215 | */ | |
216 | ||
12aa7579 | 217 | static DEFINE_MUTEX(register_mutex); |
86e07d34 | 218 | static struct snd_usb_audio *usb_chip[SNDRV_CARDS]; |
1da177e4 LT |
219 | |
220 | ||
221 | /* | |
222 | * convert a sampling rate into our full speed format (fs/1000 in Q16.16) | |
223 | * this will overflow at approx 524 kHz | |
224 | */ | |
77933d72 | 225 | static inline unsigned get_usb_full_speed_rate(unsigned int rate) |
1da177e4 LT |
226 | { |
227 | return ((rate << 13) + 62) / 125; | |
228 | } | |
229 | ||
230 | /* | |
231 | * convert a sampling rate into USB high speed format (fs/8000 in Q16.16) | |
232 | * this will overflow at approx 4 MHz | |
233 | */ | |
77933d72 | 234 | static inline unsigned get_usb_high_speed_rate(unsigned int rate) |
1da177e4 LT |
235 | { |
236 | return ((rate << 10) + 62) / 125; | |
237 | } | |
238 | ||
239 | /* convert our full speed USB rate into sampling rate in Hz */ | |
77933d72 | 240 | static inline unsigned get_full_speed_hz(unsigned int usb_rate) |
1da177e4 LT |
241 | { |
242 | return (usb_rate * 125 + (1 << 12)) >> 13; | |
243 | } | |
244 | ||
245 | /* convert our high speed USB rate into sampling rate in Hz */ | |
77933d72 | 246 | static inline unsigned get_high_speed_hz(unsigned int usb_rate) |
1da177e4 LT |
247 | { |
248 | return (usb_rate * 125 + (1 << 9)) >> 10; | |
249 | } | |
250 | ||
251 | ||
252 | /* | |
253 | * prepare urb for full speed capture sync pipe | |
254 | * | |
255 | * fill the length and offset of each urb descriptor. | |
256 | * the fixed 10.14 frequency is passed through the pipe. | |
257 | */ | |
86e07d34 TI |
258 | static int prepare_capture_sync_urb(struct snd_usb_substream *subs, |
259 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
260 | struct urb *urb) |
261 | { | |
262 | unsigned char *cp = urb->transfer_buffer; | |
88518275 | 263 | struct snd_urb_ctx *ctx = urb->context; |
1da177e4 | 264 | |
1da177e4 | 265 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
ca81090a CL |
266 | urb->iso_frame_desc[0].length = 3; |
267 | urb->iso_frame_desc[0].offset = 0; | |
268 | cp[0] = subs->freqn >> 2; | |
269 | cp[1] = subs->freqn >> 10; | |
270 | cp[2] = subs->freqn >> 18; | |
1da177e4 LT |
271 | return 0; |
272 | } | |
273 | ||
274 | /* | |
275 | * prepare urb for high speed capture sync pipe | |
276 | * | |
277 | * fill the length and offset of each urb descriptor. | |
278 | * the fixed 12.13 frequency is passed as 16.16 through the pipe. | |
279 | */ | |
86e07d34 TI |
280 | static int prepare_capture_sync_urb_hs(struct snd_usb_substream *subs, |
281 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
282 | struct urb *urb) |
283 | { | |
284 | unsigned char *cp = urb->transfer_buffer; | |
88518275 | 285 | struct snd_urb_ctx *ctx = urb->context; |
1da177e4 | 286 | |
1da177e4 | 287 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
ca81090a CL |
288 | urb->iso_frame_desc[0].length = 4; |
289 | urb->iso_frame_desc[0].offset = 0; | |
290 | cp[0] = subs->freqn; | |
291 | cp[1] = subs->freqn >> 8; | |
292 | cp[2] = subs->freqn >> 16; | |
293 | cp[3] = subs->freqn >> 24; | |
1da177e4 LT |
294 | return 0; |
295 | } | |
296 | ||
297 | /* | |
298 | * process after capture sync complete | |
299 | * - nothing to do | |
300 | */ | |
86e07d34 TI |
301 | static int retire_capture_sync_urb(struct snd_usb_substream *subs, |
302 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
303 | struct urb *urb) |
304 | { | |
305 | return 0; | |
306 | } | |
307 | ||
308 | /* | |
309 | * prepare urb for capture data pipe | |
310 | * | |
311 | * fill the offset and length of each descriptor. | |
312 | * | |
313 | * we use a temporary buffer to write the captured data. | |
314 | * since the length of written data is determined by host, we cannot | |
315 | * write onto the pcm buffer directly... the data is thus copied | |
316 | * later at complete callback to the global buffer. | |
317 | */ | |
86e07d34 TI |
318 | static int prepare_capture_urb(struct snd_usb_substream *subs, |
319 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
320 | struct urb *urb) |
321 | { | |
322 | int i, offs; | |
88518275 | 323 | struct snd_urb_ctx *ctx = urb->context; |
1da177e4 LT |
324 | |
325 | offs = 0; | |
326 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ | |
1da177e4 LT |
327 | for (i = 0; i < ctx->packets; i++) { |
328 | urb->iso_frame_desc[i].offset = offs; | |
329 | urb->iso_frame_desc[i].length = subs->curpacksize; | |
330 | offs += subs->curpacksize; | |
1da177e4 | 331 | } |
1da177e4 | 332 | urb->transfer_buffer_length = offs; |
b263a9bd | 333 | urb->number_of_packets = ctx->packets; |
1da177e4 LT |
334 | return 0; |
335 | } | |
336 | ||
337 | /* | |
338 | * process after capture complete | |
339 | * | |
340 | * copy the data from each desctiptor to the pcm buffer, and | |
341 | * update the current position. | |
342 | */ | |
86e07d34 TI |
343 | static int retire_capture_urb(struct snd_usb_substream *subs, |
344 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
345 | struct urb *urb) |
346 | { | |
347 | unsigned long flags; | |
348 | unsigned char *cp; | |
349 | int i; | |
adc8d313 | 350 | unsigned int stride, frames, bytes, oldptr; |
b263a9bd | 351 | int period_elapsed = 0; |
1da177e4 LT |
352 | |
353 | stride = runtime->frame_bits >> 3; | |
354 | ||
355 | for (i = 0; i < urb->number_of_packets; i++) { | |
356 | cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
357 | if (urb->iso_frame_desc[i].status) { | |
358 | snd_printd(KERN_ERR "frame %d active: %d\n", i, urb->iso_frame_desc[i].status); | |
359 | // continue; | |
360 | } | |
98e89f60 JG |
361 | bytes = urb->iso_frame_desc[i].actual_length; |
362 | frames = bytes / stride; | |
363 | if (!subs->txfr_quirk) | |
364 | bytes = frames * stride; | |
365 | if (bytes % (runtime->sample_bits >> 3) != 0) { | |
366 | #ifdef CONFIG_SND_DEBUG_VERBOSE | |
367 | int oldbytes = bytes; | |
368 | #endif | |
369 | bytes = frames * stride; | |
370 | snd_printdd(KERN_ERR "Corrected urb data len. %d->%d\n", | |
371 | oldbytes, bytes); | |
372 | } | |
1da177e4 LT |
373 | /* update the current pointer */ |
374 | spin_lock_irqsave(&subs->lock, flags); | |
375 | oldptr = subs->hwptr_done; | |
adc8d313 CL |
376 | subs->hwptr_done += bytes; |
377 | if (subs->hwptr_done >= runtime->buffer_size * stride) | |
378 | subs->hwptr_done -= runtime->buffer_size * stride; | |
98e89f60 | 379 | frames = (bytes + (oldptr % stride)) / stride; |
adc8d313 | 380 | subs->transfer_done += frames; |
b263a9bd CL |
381 | if (subs->transfer_done >= runtime->period_size) { |
382 | subs->transfer_done -= runtime->period_size; | |
383 | period_elapsed = 1; | |
384 | } | |
1da177e4 LT |
385 | spin_unlock_irqrestore(&subs->lock, flags); |
386 | /* copy a data chunk */ | |
adc8d313 CL |
387 | if (oldptr + bytes > runtime->buffer_size * stride) { |
388 | unsigned int bytes1 = | |
389 | runtime->buffer_size * stride - oldptr; | |
390 | memcpy(runtime->dma_area + oldptr, cp, bytes1); | |
391 | memcpy(runtime->dma_area, cp + bytes1, bytes - bytes1); | |
1da177e4 | 392 | } else { |
adc8d313 | 393 | memcpy(runtime->dma_area + oldptr, cp, bytes); |
1da177e4 | 394 | } |
1da177e4 | 395 | } |
b263a9bd CL |
396 | if (period_elapsed) |
397 | snd_pcm_period_elapsed(subs->pcm_substream); | |
1da177e4 LT |
398 | return 0; |
399 | } | |
400 | ||
e4f8e656 CL |
401 | /* |
402 | * Process after capture complete when paused. Nothing to do. | |
403 | */ | |
404 | static int retire_paused_capture_urb(struct snd_usb_substream *subs, | |
405 | struct snd_pcm_runtime *runtime, | |
406 | struct urb *urb) | |
407 | { | |
408 | return 0; | |
409 | } | |
410 | ||
1da177e4 LT |
411 | |
412 | /* | |
413 | * prepare urb for full speed playback sync pipe | |
414 | * | |
415 | * set up the offset and length to receive the current frequency. | |
416 | */ | |
417 | ||
86e07d34 TI |
418 | static int prepare_playback_sync_urb(struct snd_usb_substream *subs, |
419 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
420 | struct urb *urb) |
421 | { | |
88518275 | 422 | struct snd_urb_ctx *ctx = urb->context; |
1da177e4 | 423 | |
1da177e4 | 424 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
ca81090a CL |
425 | urb->iso_frame_desc[0].length = 3; |
426 | urb->iso_frame_desc[0].offset = 0; | |
1da177e4 LT |
427 | return 0; |
428 | } | |
429 | ||
430 | /* | |
431 | * prepare urb for high speed playback sync pipe | |
432 | * | |
433 | * set up the offset and length to receive the current frequency. | |
434 | */ | |
435 | ||
86e07d34 TI |
436 | static int prepare_playback_sync_urb_hs(struct snd_usb_substream *subs, |
437 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
438 | struct urb *urb) |
439 | { | |
88518275 | 440 | struct snd_urb_ctx *ctx = urb->context; |
1da177e4 | 441 | |
1da177e4 | 442 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
ca81090a CL |
443 | urb->iso_frame_desc[0].length = 4; |
444 | urb->iso_frame_desc[0].offset = 0; | |
1da177e4 LT |
445 | return 0; |
446 | } | |
447 | ||
448 | /* | |
449 | * process after full speed playback sync complete | |
450 | * | |
451 | * retrieve the current 10.14 frequency from pipe, and set it. | |
452 | * the value is referred in prepare_playback_urb(). | |
453 | */ | |
86e07d34 TI |
454 | static int retire_playback_sync_urb(struct snd_usb_substream *subs, |
455 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
456 | struct urb *urb) |
457 | { | |
ca81090a | 458 | unsigned int f; |
1da177e4 LT |
459 | unsigned long flags; |
460 | ||
ca81090a CL |
461 | if (urb->iso_frame_desc[0].status == 0 && |
462 | urb->iso_frame_desc[0].actual_length == 3) { | |
463 | f = combine_triple((u8*)urb->transfer_buffer) << 2; | |
50cdbf15 CL |
464 | if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { |
465 | spin_lock_irqsave(&subs->lock, flags); | |
466 | subs->freqm = f; | |
467 | spin_unlock_irqrestore(&subs->lock, flags); | |
1da177e4 | 468 | } |
1da177e4 LT |
469 | } |
470 | ||
471 | return 0; | |
472 | } | |
473 | ||
474 | /* | |
475 | * process after high speed playback sync complete | |
476 | * | |
477 | * retrieve the current 12.13 frequency from pipe, and set it. | |
478 | * the value is referred in prepare_playback_urb(). | |
479 | */ | |
86e07d34 TI |
480 | static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs, |
481 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
482 | struct urb *urb) |
483 | { | |
ca81090a | 484 | unsigned int f; |
1da177e4 LT |
485 | unsigned long flags; |
486 | ||
ca81090a CL |
487 | if (urb->iso_frame_desc[0].status == 0 && |
488 | urb->iso_frame_desc[0].actual_length == 4) { | |
489 | f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff; | |
50cdbf15 CL |
490 | if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { |
491 | spin_lock_irqsave(&subs->lock, flags); | |
492 | subs->freqm = f; | |
493 | spin_unlock_irqrestore(&subs->lock, flags); | |
494 | } | |
1da177e4 LT |
495 | } |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
d513202e | 500 | /* |
97c889a7 | 501 | * process after E-Mu 0202/0404/Tracker Pre high speed playback sync complete |
d513202e CL |
502 | * |
503 | * These devices return the number of samples per packet instead of the number | |
504 | * of samples per microframe. | |
505 | */ | |
506 | static int retire_playback_sync_urb_hs_emu(struct snd_usb_substream *subs, | |
507 | struct snd_pcm_runtime *runtime, | |
508 | struct urb *urb) | |
509 | { | |
510 | unsigned int f; | |
511 | unsigned long flags; | |
512 | ||
513 | if (urb->iso_frame_desc[0].status == 0 && | |
514 | urb->iso_frame_desc[0].actual_length == 4) { | |
515 | f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff; | |
516 | f >>= subs->datainterval; | |
517 | if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { | |
518 | spin_lock_irqsave(&subs->lock, flags); | |
519 | subs->freqm = f; | |
520 | spin_unlock_irqrestore(&subs->lock, flags); | |
521 | } | |
522 | } | |
523 | ||
524 | return 0; | |
525 | } | |
526 | ||
9568f461 CL |
527 | /* determine the number of frames in the next packet */ |
528 | static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs) | |
529 | { | |
530 | if (subs->fill_max) | |
531 | return subs->maxframesize; | |
532 | else { | |
533 | subs->phase = (subs->phase & 0xffff) | |
534 | + (subs->freqm << subs->datainterval); | |
535 | return min(subs->phase >> 16, subs->maxframesize); | |
536 | } | |
537 | } | |
538 | ||
b55bbf06 | 539 | /* |
e4f8e656 | 540 | * Prepare urb for streaming before playback starts or when paused. |
b55bbf06 | 541 | * |
b7eb4a06 | 542 | * We don't have any data, so we send silence. |
b55bbf06 | 543 | */ |
e4f8e656 CL |
544 | static int prepare_nodata_playback_urb(struct snd_usb_substream *subs, |
545 | struct snd_pcm_runtime *runtime, | |
546 | struct urb *urb) | |
b55bbf06 | 547 | { |
4b284928 | 548 | unsigned int i, offs, counts; |
86e07d34 | 549 | struct snd_urb_ctx *ctx = urb->context; |
4b284928 | 550 | int stride = runtime->frame_bits >> 3; |
b55bbf06 | 551 | |
4b284928 | 552 | offs = 0; |
b55bbf06 | 553 | urb->dev = ctx->subs->dev; |
b7eb4a06 | 554 | for (i = 0; i < ctx->packets; ++i) { |
9568f461 | 555 | counts = snd_usb_audio_next_packet_size(subs); |
4b284928 CL |
556 | urb->iso_frame_desc[i].offset = offs * stride; |
557 | urb->iso_frame_desc[i].length = counts * stride; | |
558 | offs += counts; | |
b55bbf06 | 559 | } |
b7eb4a06 | 560 | urb->number_of_packets = ctx->packets; |
4b284928 CL |
561 | urb->transfer_buffer_length = offs * stride; |
562 | memset(urb->transfer_buffer, | |
563 | subs->cur_audiofmt->format == SNDRV_PCM_FORMAT_U8 ? 0x80 : 0, | |
564 | offs * stride); | |
b55bbf06 CL |
565 | return 0; |
566 | } | |
567 | ||
1da177e4 LT |
568 | /* |
569 | * prepare urb for playback data pipe | |
570 | * | |
7efd8bc8 CL |
571 | * Since a URB can handle only a single linear buffer, we must use double |
572 | * buffering when the data to be transferred overflows the buffer boundary. | |
573 | * To avoid inconsistencies when updating hwptr_done, we use double buffering | |
574 | * for all URBs. | |
1da177e4 | 575 | */ |
86e07d34 TI |
576 | static int prepare_playback_urb(struct snd_usb_substream *subs, |
577 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
578 | struct urb *urb) |
579 | { | |
adc8d313 CL |
580 | int i, stride; |
581 | unsigned int counts, frames, bytes; | |
1da177e4 | 582 | unsigned long flags; |
7efd8bc8 | 583 | int period_elapsed = 0; |
88518275 | 584 | struct snd_urb_ctx *ctx = urb->context; |
1da177e4 LT |
585 | |
586 | stride = runtime->frame_bits >> 3; | |
587 | ||
adc8d313 | 588 | frames = 0; |
1da177e4 LT |
589 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
590 | urb->number_of_packets = 0; | |
591 | spin_lock_irqsave(&subs->lock, flags); | |
592 | for (i = 0; i < ctx->packets; i++) { | |
9568f461 | 593 | counts = snd_usb_audio_next_packet_size(subs); |
1da177e4 | 594 | /* set up descriptor */ |
adc8d313 | 595 | urb->iso_frame_desc[i].offset = frames * stride; |
1da177e4 | 596 | urb->iso_frame_desc[i].length = counts * stride; |
adc8d313 | 597 | frames += counts; |
1da177e4 | 598 | urb->number_of_packets++; |
7efd8bc8 CL |
599 | subs->transfer_done += counts; |
600 | if (subs->transfer_done >= runtime->period_size) { | |
601 | subs->transfer_done -= runtime->period_size; | |
602 | period_elapsed = 1; | |
de48c7bc | 603 | if (subs->fmt_type == UAC_FORMAT_TYPE_II) { |
7efd8bc8 CL |
604 | if (subs->transfer_done > 0) { |
605 | /* FIXME: fill-max mode is not | |
606 | * supported yet */ | |
adc8d313 | 607 | frames -= subs->transfer_done; |
7efd8bc8 CL |
608 | counts -= subs->transfer_done; |
609 | urb->iso_frame_desc[i].length = | |
610 | counts * stride; | |
611 | subs->transfer_done = 0; | |
1da177e4 LT |
612 | } |
613 | i++; | |
614 | if (i < ctx->packets) { | |
615 | /* add a transfer delimiter */ | |
7efd8bc8 | 616 | urb->iso_frame_desc[i].offset = |
adc8d313 | 617 | frames * stride; |
1da177e4 LT |
618 | urb->iso_frame_desc[i].length = 0; |
619 | urb->number_of_packets++; | |
620 | } | |
9624ea81 | 621 | break; |
1da177e4 | 622 | } |
1da177e4 | 623 | } |
a7d9c099 | 624 | if (period_elapsed) /* finish at the period boundary */ |
9624ea81 | 625 | break; |
1da177e4 | 626 | } |
adc8d313 CL |
627 | bytes = frames * stride; |
628 | if (subs->hwptr_done + bytes > runtime->buffer_size * stride) { | |
7efd8bc8 | 629 | /* err, the transferred area goes over buffer boundary. */ |
adc8d313 CL |
630 | unsigned int bytes1 = |
631 | runtime->buffer_size * stride - subs->hwptr_done; | |
7efd8bc8 | 632 | memcpy(urb->transfer_buffer, |
adc8d313 CL |
633 | runtime->dma_area + subs->hwptr_done, bytes1); |
634 | memcpy(urb->transfer_buffer + bytes1, | |
635 | runtime->dma_area, bytes - bytes1); | |
1da177e4 | 636 | } else { |
7efd8bc8 | 637 | memcpy(urb->transfer_buffer, |
adc8d313 | 638 | runtime->dma_area + subs->hwptr_done, bytes); |
1da177e4 | 639 | } |
adc8d313 CL |
640 | subs->hwptr_done += bytes; |
641 | if (subs->hwptr_done >= runtime->buffer_size * stride) | |
642 | subs->hwptr_done -= runtime->buffer_size * stride; | |
643 | runtime->delay += frames; | |
1da177e4 | 644 | spin_unlock_irqrestore(&subs->lock, flags); |
adc8d313 | 645 | urb->transfer_buffer_length = bytes; |
b55bbf06 CL |
646 | if (period_elapsed) |
647 | snd_pcm_period_elapsed(subs->pcm_substream); | |
1da177e4 LT |
648 | return 0; |
649 | } | |
650 | ||
651 | /* | |
652 | * process after playback data complete | |
ae1ec5e1 | 653 | * - decrease the delay count again |
1da177e4 | 654 | */ |
86e07d34 TI |
655 | static int retire_playback_urb(struct snd_usb_substream *subs, |
656 | struct snd_pcm_runtime *runtime, | |
1da177e4 LT |
657 | struct urb *urb) |
658 | { | |
ae1ec5e1 TI |
659 | unsigned long flags; |
660 | int stride = runtime->frame_bits >> 3; | |
661 | int processed = urb->transfer_buffer_length / stride; | |
662 | ||
663 | spin_lock_irqsave(&subs->lock, flags); | |
664 | if (processed > runtime->delay) | |
665 | runtime->delay = 0; | |
666 | else | |
667 | runtime->delay -= processed; | |
668 | spin_unlock_irqrestore(&subs->lock, flags); | |
1da177e4 LT |
669 | return 0; |
670 | } | |
671 | ||
672 | ||
673 | /* | |
674 | */ | |
675 | static struct snd_urb_ops audio_urb_ops[2] = { | |
676 | { | |
e4f8e656 | 677 | .prepare = prepare_nodata_playback_urb, |
1da177e4 LT |
678 | .retire = retire_playback_urb, |
679 | .prepare_sync = prepare_playback_sync_urb, | |
680 | .retire_sync = retire_playback_sync_urb, | |
681 | }, | |
682 | { | |
683 | .prepare = prepare_capture_urb, | |
684 | .retire = retire_capture_urb, | |
685 | .prepare_sync = prepare_capture_sync_urb, | |
686 | .retire_sync = retire_capture_sync_urb, | |
687 | }, | |
688 | }; | |
689 | ||
690 | static struct snd_urb_ops audio_urb_ops_high_speed[2] = { | |
691 | { | |
e4f8e656 | 692 | .prepare = prepare_nodata_playback_urb, |
1da177e4 LT |
693 | .retire = retire_playback_urb, |
694 | .prepare_sync = prepare_playback_sync_urb_hs, | |
695 | .retire_sync = retire_playback_sync_urb_hs, | |
696 | }, | |
697 | { | |
698 | .prepare = prepare_capture_urb, | |
699 | .retire = retire_capture_urb, | |
700 | .prepare_sync = prepare_capture_sync_urb_hs, | |
701 | .retire_sync = retire_capture_sync_urb, | |
702 | }, | |
703 | }; | |
704 | ||
705 | /* | |
706 | * complete callback from data urb | |
707 | */ | |
7d12e780 | 708 | static void snd_complete_urb(struct urb *urb) |
1da177e4 | 709 | { |
88518275 | 710 | struct snd_urb_ctx *ctx = urb->context; |
86e07d34 TI |
711 | struct snd_usb_substream *subs = ctx->subs; |
712 | struct snd_pcm_substream *substream = ctx->subs->pcm_substream; | |
1da177e4 LT |
713 | int err = 0; |
714 | ||
715 | if ((subs->running && subs->ops.retire(subs, substream->runtime, urb)) || | |
07f51a72 | 716 | !subs->running || /* can be stopped during retire callback */ |
1da177e4 LT |
717 | (err = subs->ops.prepare(subs, substream->runtime, urb)) < 0 || |
718 | (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { | |
719 | clear_bit(ctx->index, &subs->active_mask); | |
720 | if (err < 0) { | |
721 | snd_printd(KERN_ERR "cannot submit urb (err = %d)\n", err); | |
722 | snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN); | |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | ||
728 | /* | |
729 | * complete callback from sync urb | |
730 | */ | |
7d12e780 | 731 | static void snd_complete_sync_urb(struct urb *urb) |
1da177e4 | 732 | { |
88518275 | 733 | struct snd_urb_ctx *ctx = urb->context; |
86e07d34 TI |
734 | struct snd_usb_substream *subs = ctx->subs; |
735 | struct snd_pcm_substream *substream = ctx->subs->pcm_substream; | |
1da177e4 LT |
736 | int err = 0; |
737 | ||
738 | if ((subs->running && subs->ops.retire_sync(subs, substream->runtime, urb)) || | |
07f51a72 | 739 | !subs->running || /* can be stopped during retire callback */ |
1da177e4 LT |
740 | (err = subs->ops.prepare_sync(subs, substream->runtime, urb)) < 0 || |
741 | (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { | |
742 | clear_bit(ctx->index + 16, &subs->active_mask); | |
743 | if (err < 0) { | |
744 | snd_printd(KERN_ERR "cannot submit sync urb (err = %d)\n", err); | |
745 | snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN); | |
746 | } | |
747 | } | |
748 | } | |
749 | ||
750 | ||
751 | /* | |
752 | * unlink active urbs. | |
753 | */ | |
86e07d34 | 754 | static int deactivate_urbs(struct snd_usb_substream *subs, int force, int can_sleep) |
1da177e4 LT |
755 | { |
756 | unsigned int i; | |
757 | int async; | |
758 | ||
759 | subs->running = 0; | |
760 | ||
761 | if (!force && subs->stream->chip->shutdown) /* to be sure... */ | |
762 | return -EBADFD; | |
763 | ||
764 | async = !can_sleep && async_unlink; | |
765 | ||
07f51a72 | 766 | if (!async && in_interrupt()) |
1da177e4 LT |
767 | return 0; |
768 | ||
769 | for (i = 0; i < subs->nurbs; i++) { | |
770 | if (test_bit(i, &subs->active_mask)) { | |
07f51a72 | 771 | if (!test_and_set_bit(i, &subs->unlink_mask)) { |
1da177e4 | 772 | struct urb *u = subs->dataurb[i].urb; |
b375a049 | 773 | if (async) |
1da177e4 | 774 | usb_unlink_urb(u); |
b375a049 | 775 | else |
1da177e4 LT |
776 | usb_kill_urb(u); |
777 | } | |
778 | } | |
779 | } | |
780 | if (subs->syncpipe) { | |
781 | for (i = 0; i < SYNC_URBS; i++) { | |
782 | if (test_bit(i+16, &subs->active_mask)) { | |
07f51a72 | 783 | if (!test_and_set_bit(i+16, &subs->unlink_mask)) { |
1da177e4 | 784 | struct urb *u = subs->syncurb[i].urb; |
b375a049 | 785 | if (async) |
1da177e4 | 786 | usb_unlink_urb(u); |
b375a049 | 787 | else |
1da177e4 LT |
788 | usb_kill_urb(u); |
789 | } | |
790 | } | |
791 | } | |
792 | } | |
793 | return 0; | |
794 | } | |
795 | ||
796 | ||
32e19e88 CL |
797 | static const char *usb_error_string(int err) |
798 | { | |
799 | switch (err) { | |
800 | case -ENODEV: | |
801 | return "no device"; | |
802 | case -ENOENT: | |
803 | return "endpoint not enabled"; | |
804 | case -EPIPE: | |
805 | return "endpoint stalled"; | |
806 | case -ENOSPC: | |
807 | return "not enough bandwidth"; | |
808 | case -ESHUTDOWN: | |
809 | return "device disabled"; | |
810 | case -EHOSTUNREACH: | |
811 | return "device suspended"; | |
812 | case -EINVAL: | |
813 | case -EAGAIN: | |
814 | case -EFBIG: | |
815 | case -EMSGSIZE: | |
816 | return "internal error"; | |
817 | default: | |
818 | return "unknown error"; | |
819 | } | |
820 | } | |
821 | ||
1da177e4 LT |
822 | /* |
823 | * set up and start data/sync urbs | |
824 | */ | |
86e07d34 | 825 | static int start_urbs(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime) |
1da177e4 LT |
826 | { |
827 | unsigned int i; | |
828 | int err; | |
829 | ||
830 | if (subs->stream->chip->shutdown) | |
831 | return -EBADFD; | |
832 | ||
833 | for (i = 0; i < subs->nurbs; i++) { | |
5e246b85 TI |
834 | if (snd_BUG_ON(!subs->dataurb[i].urb)) |
835 | return -EINVAL; | |
1da177e4 LT |
836 | if (subs->ops.prepare(subs, runtime, subs->dataurb[i].urb) < 0) { |
837 | snd_printk(KERN_ERR "cannot prepare datapipe for urb %d\n", i); | |
838 | goto __error; | |
839 | } | |
840 | } | |
841 | if (subs->syncpipe) { | |
842 | for (i = 0; i < SYNC_URBS; i++) { | |
5e246b85 TI |
843 | if (snd_BUG_ON(!subs->syncurb[i].urb)) |
844 | return -EINVAL; | |
1da177e4 LT |
845 | if (subs->ops.prepare_sync(subs, runtime, subs->syncurb[i].urb) < 0) { |
846 | snd_printk(KERN_ERR "cannot prepare syncpipe for urb %d\n", i); | |
847 | goto __error; | |
848 | } | |
849 | } | |
850 | } | |
851 | ||
852 | subs->active_mask = 0; | |
853 | subs->unlink_mask = 0; | |
854 | subs->running = 1; | |
855 | for (i = 0; i < subs->nurbs; i++) { | |
32e19e88 CL |
856 | err = usb_submit_urb(subs->dataurb[i].urb, GFP_ATOMIC); |
857 | if (err < 0) { | |
858 | snd_printk(KERN_ERR "cannot submit datapipe " | |
859 | "for urb %d, error %d: %s\n", | |
860 | i, err, usb_error_string(err)); | |
1da177e4 LT |
861 | goto __error; |
862 | } | |
863 | set_bit(i, &subs->active_mask); | |
864 | } | |
865 | if (subs->syncpipe) { | |
866 | for (i = 0; i < SYNC_URBS; i++) { | |
32e19e88 CL |
867 | err = usb_submit_urb(subs->syncurb[i].urb, GFP_ATOMIC); |
868 | if (err < 0) { | |
869 | snd_printk(KERN_ERR "cannot submit syncpipe " | |
870 | "for urb %d, error %d: %s\n", | |
871 | i, err, usb_error_string(err)); | |
1da177e4 LT |
872 | goto __error; |
873 | } | |
874 | set_bit(i + 16, &subs->active_mask); | |
875 | } | |
876 | } | |
877 | return 0; | |
878 | ||
879 | __error: | |
880 | // snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN); | |
881 | deactivate_urbs(subs, 0, 0); | |
882 | return -EPIPE; | |
883 | } | |
884 | ||
885 | ||
886 | /* | |
887 | * wait until all urbs are processed. | |
888 | */ | |
86e07d34 | 889 | static int wait_clear_urbs(struct snd_usb_substream *subs) |
1da177e4 | 890 | { |
b27c187f | 891 | unsigned long end_time = jiffies + msecs_to_jiffies(1000); |
1da177e4 LT |
892 | unsigned int i; |
893 | int alive; | |
894 | ||
895 | do { | |
896 | alive = 0; | |
897 | for (i = 0; i < subs->nurbs; i++) { | |
898 | if (test_bit(i, &subs->active_mask)) | |
899 | alive++; | |
900 | } | |
901 | if (subs->syncpipe) { | |
902 | for (i = 0; i < SYNC_URBS; i++) { | |
903 | if (test_bit(i + 16, &subs->active_mask)) | |
904 | alive++; | |
905 | } | |
906 | } | |
907 | if (! alive) | |
908 | break; | |
8433a509 | 909 | schedule_timeout_uninterruptible(1); |
b27c187f | 910 | } while (time_before(jiffies, end_time)); |
1da177e4 LT |
911 | if (alive) |
912 | snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive); | |
913 | return 0; | |
914 | } | |
915 | ||
916 | ||
917 | /* | |
adc8d313 | 918 | * return the current pcm pointer. just based on the hwptr_done value. |
1da177e4 | 919 | */ |
86e07d34 | 920 | static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream) |
1da177e4 | 921 | { |
86e07d34 | 922 | struct snd_usb_substream *subs; |
adc8d313 | 923 | unsigned int hwptr_done; |
daa150ef | 924 | |
86e07d34 | 925 | subs = (struct snd_usb_substream *)substream->runtime->private_data; |
daa150ef CL |
926 | spin_lock(&subs->lock); |
927 | hwptr_done = subs->hwptr_done; | |
928 | spin_unlock(&subs->lock); | |
adc8d313 | 929 | return hwptr_done / (substream->runtime->frame_bits >> 3); |
1da177e4 LT |
930 | } |
931 | ||
932 | ||
933 | /* | |
b55bbf06 | 934 | * start/stop playback substream |
1da177e4 | 935 | */ |
86e07d34 | 936 | static int snd_usb_pcm_playback_trigger(struct snd_pcm_substream *substream, |
b55bbf06 | 937 | int cmd) |
1da177e4 | 938 | { |
86e07d34 | 939 | struct snd_usb_substream *subs = substream->runtime->private_data; |
b55bbf06 CL |
940 | |
941 | switch (cmd) { | |
942 | case SNDRV_PCM_TRIGGER_START: | |
e4f8e656 | 943 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
b55bbf06 CL |
944 | subs->ops.prepare = prepare_playback_urb; |
945 | return 0; | |
946 | case SNDRV_PCM_TRIGGER_STOP: | |
947 | return deactivate_urbs(subs, 0, 0); | |
e4f8e656 CL |
948 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
949 | subs->ops.prepare = prepare_nodata_playback_urb; | |
950 | return 0; | |
b55bbf06 CL |
951 | default: |
952 | return -EINVAL; | |
953 | } | |
954 | } | |
955 | ||
956 | /* | |
957 | * start/stop capture substream | |
958 | */ | |
86e07d34 | 959 | static int snd_usb_pcm_capture_trigger(struct snd_pcm_substream *substream, |
b55bbf06 CL |
960 | int cmd) |
961 | { | |
86e07d34 | 962 | struct snd_usb_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
963 | |
964 | switch (cmd) { | |
965 | case SNDRV_PCM_TRIGGER_START: | |
e4f8e656 | 966 | subs->ops.retire = retire_capture_urb; |
b55bbf06 | 967 | return start_urbs(subs, substream->runtime); |
1da177e4 | 968 | case SNDRV_PCM_TRIGGER_STOP: |
b55bbf06 | 969 | return deactivate_urbs(subs, 0, 0); |
e4f8e656 CL |
970 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
971 | subs->ops.retire = retire_paused_capture_urb; | |
972 | return 0; | |
973 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
974 | subs->ops.retire = retire_capture_urb; | |
975 | return 0; | |
1da177e4 | 976 | default: |
b55bbf06 | 977 | return -EINVAL; |
1da177e4 | 978 | } |
1da177e4 LT |
979 | } |
980 | ||
981 | ||
982 | /* | |
983 | * release a urb data | |
984 | */ | |
86e07d34 | 985 | static void release_urb_ctx(struct snd_urb_ctx *u) |
1da177e4 LT |
986 | { |
987 | if (u->urb) { | |
55851f73 CL |
988 | if (u->buffer_size) |
989 | usb_buffer_free(u->subs->dev, u->buffer_size, | |
990 | u->urb->transfer_buffer, | |
991 | u->urb->transfer_dma); | |
1da177e4 LT |
992 | usb_free_urb(u->urb); |
993 | u->urb = NULL; | |
994 | } | |
1da177e4 LT |
995 | } |
996 | ||
997 | /* | |
998 | * release a substream | |
999 | */ | |
86e07d34 | 1000 | static void release_substream_urbs(struct snd_usb_substream *subs, int force) |
1da177e4 LT |
1001 | { |
1002 | int i; | |
1003 | ||
1004 | /* stop urbs (to be sure) */ | |
1005 | deactivate_urbs(subs, force, 1); | |
1006 | wait_clear_urbs(subs); | |
1007 | ||
1008 | for (i = 0; i < MAX_URBS; i++) | |
1009 | release_urb_ctx(&subs->dataurb[i]); | |
1010 | for (i = 0; i < SYNC_URBS; i++) | |
1011 | release_urb_ctx(&subs->syncurb[i]); | |
55851f73 CL |
1012 | usb_buffer_free(subs->dev, SYNC_URBS * 4, |
1013 | subs->syncbuf, subs->sync_dma); | |
1014 | subs->syncbuf = NULL; | |
1da177e4 LT |
1015 | subs->nurbs = 0; |
1016 | } | |
1017 | ||
1018 | /* | |
1019 | * initialize a substream for plaback/capture | |
1020 | */ | |
86e07d34 | 1021 | static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int period_bytes, |
1da177e4 LT |
1022 | unsigned int rate, unsigned int frame_bits) |
1023 | { | |
160389c8 | 1024 | unsigned int maxsize, i; |
1da177e4 | 1025 | int is_playback = subs->direction == SNDRV_PCM_STREAM_PLAYBACK; |
160389c8 | 1026 | unsigned int urb_packs, total_packs, packs_per_ms; |
1da177e4 LT |
1027 | |
1028 | /* calculate the frequency in 16.16 format */ | |
1029 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) | |
1030 | subs->freqn = get_usb_full_speed_rate(rate); | |
1031 | else | |
1032 | subs->freqn = get_usb_high_speed_rate(rate); | |
1033 | subs->freqm = subs->freqn; | |
573567e0 CL |
1034 | /* calculate max. frequency */ |
1035 | if (subs->maxpacksize) { | |
1036 | /* whatever fits into a max. size packet */ | |
1da177e4 | 1037 | maxsize = subs->maxpacksize; |
573567e0 CL |
1038 | subs->freqmax = (maxsize / (frame_bits >> 3)) |
1039 | << (16 - subs->datainterval); | |
1040 | } else { | |
1041 | /* no max. packet size: just take 25% higher than nominal */ | |
1042 | subs->freqmax = subs->freqn + (subs->freqn >> 2); | |
1043 | maxsize = ((subs->freqmax + 0xffff) * (frame_bits >> 3)) | |
1044 | >> (16 - subs->datainterval); | |
1da177e4 | 1045 | } |
573567e0 | 1046 | subs->phase = 0; |
1da177e4 LT |
1047 | |
1048 | if (subs->fill_max) | |
1049 | subs->curpacksize = subs->maxpacksize; | |
1050 | else | |
1051 | subs->curpacksize = maxsize; | |
1052 | ||
a93bf990 CL |
1053 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) |
1054 | packs_per_ms = 8 >> subs->datainterval; | |
1055 | else | |
1056 | packs_per_ms = 1; | |
1057 | ||
71d848ca | 1058 | if (is_playback) { |
f3990e61 | 1059 | urb_packs = max(nrpacks, 1); |
71d848ca CL |
1060 | urb_packs = min(urb_packs, (unsigned int)MAX_PACKS); |
1061 | } else | |
15a24c07 | 1062 | urb_packs = 1; |
a93bf990 | 1063 | urb_packs *= packs_per_ms; |
765e8db0 | 1064 | if (subs->syncpipe) |
f1e6d3c5 | 1065 | urb_packs = min(urb_packs, 1U << subs->syncinterval); |
1da177e4 | 1066 | |
1da177e4 | 1067 | /* decide how many packets to be used */ |
15a24c07 | 1068 | if (is_playback) { |
4d788e04 | 1069 | unsigned int minsize, maxpacks; |
d6db392e CL |
1070 | /* determine how small a packet can be */ |
1071 | minsize = (subs->freqn >> (16 - subs->datainterval)) | |
1072 | * (frame_bits >> 3); | |
7efd8bc8 | 1073 | /* with sync from device, assume it can be 12% lower */ |
d6db392e | 1074 | if (subs->syncpipe) |
7efd8bc8 | 1075 | minsize -= minsize >> 3; |
d6db392e CL |
1076 | minsize = max(minsize, 1u); |
1077 | total_packs = (period_bytes + minsize - 1) / minsize; | |
a93bf990 | 1078 | /* we need at least two URBs for queueing */ |
a7d9c099 CL |
1079 | if (total_packs < 2) { |
1080 | total_packs = 2; | |
f3990e61 | 1081 | } else { |
4d788e04 | 1082 | /* and we don't want too long a queue either */ |
b1c86bb8 CL |
1083 | maxpacks = max(MAX_QUEUE * packs_per_ms, urb_packs * 2); |
1084 | total_packs = min(total_packs, maxpacks); | |
4d788e04 | 1085 | } |
15a24c07 | 1086 | } else { |
a7d9c099 CL |
1087 | while (urb_packs > 1 && urb_packs * maxsize >= period_bytes) |
1088 | urb_packs >>= 1; | |
15a24c07 CL |
1089 | total_packs = MAX_URBS * urb_packs; |
1090 | } | |
1da177e4 LT |
1091 | subs->nurbs = (total_packs + urb_packs - 1) / urb_packs; |
1092 | if (subs->nurbs > MAX_URBS) { | |
1093 | /* too much... */ | |
1094 | subs->nurbs = MAX_URBS; | |
1095 | total_packs = MAX_URBS * urb_packs; | |
160389c8 | 1096 | } else if (subs->nurbs < 2) { |
1da177e4 LT |
1097 | /* too little - we need at least two packets |
1098 | * to ensure contiguous playback/capture | |
1099 | */ | |
1100 | subs->nurbs = 2; | |
1da177e4 LT |
1101 | } |
1102 | ||
1103 | /* allocate and initialize data urbs */ | |
1104 | for (i = 0; i < subs->nurbs; i++) { | |
86e07d34 | 1105 | struct snd_urb_ctx *u = &subs->dataurb[i]; |
1da177e4 LT |
1106 | u->index = i; |
1107 | u->subs = subs; | |
160389c8 CL |
1108 | u->packets = (i + 1) * total_packs / subs->nurbs |
1109 | - i * total_packs / subs->nurbs; | |
55851f73 | 1110 | u->buffer_size = maxsize * u->packets; |
de48c7bc | 1111 | if (subs->fmt_type == UAC_FORMAT_TYPE_II) |
1da177e4 | 1112 | u->packets++; /* for transfer delimiter */ |
1da177e4 | 1113 | u->urb = usb_alloc_urb(u->packets, GFP_KERNEL); |
07f51a72 | 1114 | if (!u->urb) |
55851f73 CL |
1115 | goto out_of_memory; |
1116 | u->urb->transfer_buffer = | |
1117 | usb_buffer_alloc(subs->dev, u->buffer_size, GFP_KERNEL, | |
1118 | &u->urb->transfer_dma); | |
07f51a72 | 1119 | if (!u->urb->transfer_buffer) |
55851f73 | 1120 | goto out_of_memory; |
1da177e4 | 1121 | u->urb->pipe = subs->datapipe; |
55851f73 | 1122 | u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
573567e0 | 1123 | u->urb->interval = 1 << subs->datainterval; |
1da177e4 | 1124 | u->urb->context = u; |
3527a008 | 1125 | u->urb->complete = snd_complete_urb; |
1da177e4 LT |
1126 | } |
1127 | ||
1128 | if (subs->syncpipe) { | |
1129 | /* allocate and initialize sync urbs */ | |
55851f73 CL |
1130 | subs->syncbuf = usb_buffer_alloc(subs->dev, SYNC_URBS * 4, |
1131 | GFP_KERNEL, &subs->sync_dma); | |
07f51a72 | 1132 | if (!subs->syncbuf) |
55851f73 | 1133 | goto out_of_memory; |
1da177e4 | 1134 | for (i = 0; i < SYNC_URBS; i++) { |
86e07d34 | 1135 | struct snd_urb_ctx *u = &subs->syncurb[i]; |
1da177e4 LT |
1136 | u->index = i; |
1137 | u->subs = subs; | |
ca81090a CL |
1138 | u->packets = 1; |
1139 | u->urb = usb_alloc_urb(1, GFP_KERNEL); | |
07f51a72 | 1140 | if (!u->urb) |
55851f73 | 1141 | goto out_of_memory; |
ca81090a | 1142 | u->urb->transfer_buffer = subs->syncbuf + i * 4; |
55851f73 | 1143 | u->urb->transfer_dma = subs->sync_dma + i * 4; |
ca81090a | 1144 | u->urb->transfer_buffer_length = 4; |
1da177e4 | 1145 | u->urb->pipe = subs->syncpipe; |
55851f73 CL |
1146 | u->urb->transfer_flags = URB_ISO_ASAP | |
1147 | URB_NO_TRANSFER_DMA_MAP; | |
ca81090a | 1148 | u->urb->number_of_packets = 1; |
1149a64f | 1149 | u->urb->interval = 1 << subs->syncinterval; |
1da177e4 | 1150 | u->urb->context = u; |
3527a008 | 1151 | u->urb->complete = snd_complete_sync_urb; |
1da177e4 LT |
1152 | } |
1153 | } | |
1154 | return 0; | |
55851f73 CL |
1155 | |
1156 | out_of_memory: | |
1157 | release_substream_urbs(subs, 0); | |
1158 | return -ENOMEM; | |
1da177e4 LT |
1159 | } |
1160 | ||
1161 | ||
1162 | /* | |
1163 | * find a matching audio format | |
1164 | */ | |
86e07d34 | 1165 | static struct audioformat *find_format(struct snd_usb_substream *subs, unsigned int format, |
1da177e4 LT |
1166 | unsigned int rate, unsigned int channels) |
1167 | { | |
1168 | struct list_head *p; | |
1169 | struct audioformat *found = NULL; | |
1170 | int cur_attr = 0, attr; | |
1171 | ||
1172 | list_for_each(p, &subs->fmt_list) { | |
1173 | struct audioformat *fp; | |
1174 | fp = list_entry(p, struct audioformat, list); | |
1175 | if (fp->format != format || fp->channels != channels) | |
1176 | continue; | |
1177 | if (rate < fp->rate_min || rate > fp->rate_max) | |
1178 | continue; | |
1179 | if (! (fp->rates & SNDRV_PCM_RATE_CONTINUOUS)) { | |
1180 | unsigned int i; | |
1181 | for (i = 0; i < fp->nr_rates; i++) | |
1182 | if (fp->rate_table[i] == rate) | |
1183 | break; | |
1184 | if (i >= fp->nr_rates) | |
1185 | continue; | |
1186 | } | |
de48c7bc | 1187 | attr = fp->ep_attr & USB_ENDPOINT_SYNCTYPE; |
1da177e4 LT |
1188 | if (! found) { |
1189 | found = fp; | |
1190 | cur_attr = attr; | |
1191 | continue; | |
1192 | } | |
1193 | /* avoid async out and adaptive in if the other method | |
1194 | * supports the same format. | |
1195 | * this is a workaround for the case like | |
1196 | * M-audio audiophile USB. | |
1197 | */ | |
1198 | if (attr != cur_attr) { | |
de48c7bc | 1199 | if ((attr == USB_ENDPOINT_SYNC_ASYNC && |
1da177e4 | 1200 | subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || |
de48c7bc | 1201 | (attr == USB_ENDPOINT_SYNC_ADAPTIVE && |
1da177e4 LT |
1202 | subs->direction == SNDRV_PCM_STREAM_CAPTURE)) |
1203 | continue; | |
de48c7bc | 1204 | if ((cur_attr == USB_ENDPOINT_SYNC_ASYNC && |
1da177e4 | 1205 | subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || |
de48c7bc | 1206 | (cur_attr == USB_ENDPOINT_SYNC_ADAPTIVE && |
1da177e4 LT |
1207 | subs->direction == SNDRV_PCM_STREAM_CAPTURE)) { |
1208 | found = fp; | |
1209 | cur_attr = attr; | |
1210 | continue; | |
1211 | } | |
1212 | } | |
1213 | /* find the format with the largest max. packet size */ | |
1214 | if (fp->maxpacksize > found->maxpacksize) { | |
1215 | found = fp; | |
1216 | cur_attr = attr; | |
1217 | } | |
1218 | } | |
1219 | return found; | |
1220 | } | |
1221 | ||
1222 | ||
1223 | /* | |
1224 | * initialize the picth control and sample rate | |
1225 | */ | |
1226 | static int init_usb_pitch(struct usb_device *dev, int iface, | |
1227 | struct usb_host_interface *alts, | |
1228 | struct audioformat *fmt) | |
1229 | { | |
1230 | unsigned int ep; | |
1231 | unsigned char data[1]; | |
1232 | int err; | |
1233 | ||
1234 | ep = get_endpoint(alts, 0)->bEndpointAddress; | |
1235 | /* if endpoint has pitch control, enable it */ | |
de48c7bc | 1236 | if (fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL) { |
1da177e4 | 1237 | data[0] = 1; |
de48c7bc | 1238 | if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, |
1da177e4 | 1239 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, |
de48c7bc | 1240 | UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep, data, 1, 1000)) < 0) { |
1da177e4 LT |
1241 | snd_printk(KERN_ERR "%d:%d:%d: cannot set enable PITCH\n", |
1242 | dev->devnum, iface, ep); | |
1243 | return err; | |
1244 | } | |
1245 | } | |
1246 | return 0; | |
1247 | } | |
1248 | ||
1249 | static int init_usb_sample_rate(struct usb_device *dev, int iface, | |
1250 | struct usb_host_interface *alts, | |
1251 | struct audioformat *fmt, int rate) | |
1252 | { | |
1253 | unsigned int ep; | |
1254 | unsigned char data[3]; | |
1255 | int err; | |
1256 | ||
1257 | ep = get_endpoint(alts, 0)->bEndpointAddress; | |
1258 | /* if endpoint has sampling rate control, set it */ | |
de48c7bc | 1259 | if (fmt->attributes & UAC_EP_CS_ATTR_SAMPLE_RATE) { |
1da177e4 LT |
1260 | int crate; |
1261 | data[0] = rate; | |
1262 | data[1] = rate >> 8; | |
1263 | data[2] = rate >> 16; | |
de48c7bc | 1264 | if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, |
1da177e4 | 1265 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, |
de48c7bc | 1266 | UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000)) < 0) { |
b9d710b3 | 1267 | snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d to ep %#x\n", |
1da177e4 LT |
1268 | dev->devnum, iface, fmt->altsetting, rate, ep); |
1269 | return err; | |
1270 | } | |
de48c7bc | 1271 | if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR, |
1da177e4 | 1272 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_IN, |
de48c7bc | 1273 | UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000)) < 0) { |
b9d710b3 | 1274 | snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq at ep %#x\n", |
1da177e4 LT |
1275 | dev->devnum, iface, fmt->altsetting, ep); |
1276 | return 0; /* some devices don't support reading */ | |
1277 | } | |
1278 | crate = data[0] | (data[1] << 8) | (data[2] << 16); | |
1279 | if (crate != rate) { | |
1280 | snd_printd(KERN_WARNING "current rate %d is different from the runtime rate %d\n", crate, rate); | |
1281 | // runtime->rate = crate; | |
1282 | } | |
1283 | } | |
1284 | return 0; | |
1285 | } | |
1286 | ||
7d2b451e SK |
1287 | /* |
1288 | * For E-Mu 0404USB/0202USB/TrackerPre sample rate should be set for device, | |
1289 | * not for interface. | |
1290 | */ | |
1291 | static void set_format_emu_quirk(struct snd_usb_substream *subs, | |
1292 | struct audioformat *fmt) | |
1293 | { | |
1294 | unsigned char emu_samplerate_id = 0; | |
1295 | ||
1296 | /* When capture is active | |
1297 | * sample rate shouldn't be changed | |
1298 | * by playback substream | |
1299 | */ | |
1300 | if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { | |
1301 | if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1) | |
1302 | return; | |
1303 | } | |
1304 | ||
1305 | switch (fmt->rate_min) { | |
1306 | case 48000: | |
1307 | emu_samplerate_id = EMU_QUIRK_SR_48000HZ; | |
1308 | break; | |
1309 | case 88200: | |
1310 | emu_samplerate_id = EMU_QUIRK_SR_88200HZ; | |
1311 | break; | |
1312 | case 96000: | |
1313 | emu_samplerate_id = EMU_QUIRK_SR_96000HZ; | |
1314 | break; | |
1315 | case 176400: | |
1316 | emu_samplerate_id = EMU_QUIRK_SR_176400HZ; | |
1317 | break; | |
1318 | case 192000: | |
1319 | emu_samplerate_id = EMU_QUIRK_SR_192000HZ; | |
1320 | break; | |
1321 | default: | |
1322 | emu_samplerate_id = EMU_QUIRK_SR_44100HZ; | |
1323 | break; | |
1324 | } | |
1325 | snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id); | |
1326 | } | |
1327 | ||
1da177e4 LT |
1328 | /* |
1329 | * find a matching format and set up the interface | |
1330 | */ | |
86e07d34 | 1331 | static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) |
1da177e4 LT |
1332 | { |
1333 | struct usb_device *dev = subs->dev; | |
1334 | struct usb_host_interface *alts; | |
1335 | struct usb_interface_descriptor *altsd; | |
1336 | struct usb_interface *iface; | |
1337 | unsigned int ep, attr; | |
1338 | int is_playback = subs->direction == SNDRV_PCM_STREAM_PLAYBACK; | |
1339 | int err; | |
1340 | ||
1341 | iface = usb_ifnum_to_if(dev, fmt->iface); | |
5e246b85 TI |
1342 | if (WARN_ON(!iface)) |
1343 | return -EINVAL; | |
1da177e4 LT |
1344 | alts = &iface->altsetting[fmt->altset_idx]; |
1345 | altsd = get_iface_desc(alts); | |
5e246b85 TI |
1346 | if (WARN_ON(altsd->bAlternateSetting != fmt->altsetting)) |
1347 | return -EINVAL; | |
1da177e4 LT |
1348 | |
1349 | if (fmt == subs->cur_audiofmt) | |
1350 | return 0; | |
1351 | ||
1352 | /* close the old interface */ | |
1353 | if (subs->interface >= 0 && subs->interface != fmt->iface) { | |
5149fe2c ON |
1354 | if (usb_set_interface(subs->dev, subs->interface, 0) < 0) { |
1355 | snd_printk(KERN_ERR "%d:%d:%d: return to setting 0 failed\n", | |
1356 | dev->devnum, fmt->iface, fmt->altsetting); | |
1357 | return -EIO; | |
1358 | } | |
1da177e4 LT |
1359 | subs->interface = -1; |
1360 | subs->format = 0; | |
1361 | } | |
1362 | ||
1363 | /* set interface */ | |
1364 | if (subs->interface != fmt->iface || subs->format != fmt->altset_idx) { | |
1365 | if (usb_set_interface(dev, fmt->iface, fmt->altsetting) < 0) { | |
1366 | snd_printk(KERN_ERR "%d:%d:%d: usb_set_interface failed\n", | |
1367 | dev->devnum, fmt->iface, fmt->altsetting); | |
1368 | return -EIO; | |
1369 | } | |
1370 | snd_printdd(KERN_INFO "setting usb interface %d:%d\n", fmt->iface, fmt->altsetting); | |
1371 | subs->interface = fmt->iface; | |
1372 | subs->format = fmt->altset_idx; | |
1373 | } | |
1374 | ||
1375 | /* create a data pipe */ | |
1376 | ep = fmt->endpoint & USB_ENDPOINT_NUMBER_MASK; | |
1377 | if (is_playback) | |
1378 | subs->datapipe = usb_sndisocpipe(dev, ep); | |
1379 | else | |
1380 | subs->datapipe = usb_rcvisocpipe(dev, ep); | |
744b89e5 | 1381 | subs->datainterval = fmt->datainterval; |
1da177e4 LT |
1382 | subs->syncpipe = subs->syncinterval = 0; |
1383 | subs->maxpacksize = fmt->maxpacksize; | |
1384 | subs->fill_max = 0; | |
1385 | ||
1386 | /* we need a sync pipe in async OUT or adaptive IN mode */ | |
1387 | /* check the number of EP, since some devices have broken | |
1388 | * descriptors which fool us. if it has only one EP, | |
1389 | * assume it as adaptive-out or sync-in. | |
1390 | */ | |
de48c7bc DM |
1391 | attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE; |
1392 | if (((is_playback && attr == USB_ENDPOINT_SYNC_ASYNC) || | |
1393 | (! is_playback && attr == USB_ENDPOINT_SYNC_ADAPTIVE)) && | |
1da177e4 LT |
1394 | altsd->bNumEndpoints >= 2) { |
1395 | /* check sync-pipe endpoint */ | |
1396 | /* ... and check descriptor size before accessing bSynchAddress | |
1397 | because there is a version of the SB Audigy 2 NX firmware lacking | |
1398 | the audio fields in the endpoint descriptors */ | |
1399 | if ((get_endpoint(alts, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != 0x01 || | |
1400 | (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && | |
1401 | get_endpoint(alts, 1)->bSynchAddress != 0)) { | |
1402 | snd_printk(KERN_ERR "%d:%d:%d : invalid synch pipe\n", | |
1403 | dev->devnum, fmt->iface, fmt->altsetting); | |
1404 | return -EINVAL; | |
1405 | } | |
1406 | ep = get_endpoint(alts, 1)->bEndpointAddress; | |
1407 | if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && | |
1408 | (( is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) || | |
1409 | (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) { | |
1410 | snd_printk(KERN_ERR "%d:%d:%d : invalid synch pipe\n", | |
1411 | dev->devnum, fmt->iface, fmt->altsetting); | |
1412 | return -EINVAL; | |
1413 | } | |
1414 | ep &= USB_ENDPOINT_NUMBER_MASK; | |
1415 | if (is_playback) | |
1416 | subs->syncpipe = usb_rcvisocpipe(dev, ep); | |
1417 | else | |
1418 | subs->syncpipe = usb_sndisocpipe(dev, ep); | |
1149a64f CL |
1419 | if (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && |
1420 | get_endpoint(alts, 1)->bRefresh >= 1 && | |
1421 | get_endpoint(alts, 1)->bRefresh <= 9) | |
1422 | subs->syncinterval = get_endpoint(alts, 1)->bRefresh; | |
604cf499 | 1423 | else if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) |
1149a64f | 1424 | subs->syncinterval = 1; |
604cf499 CL |
1425 | else if (get_endpoint(alts, 1)->bInterval >= 1 && |
1426 | get_endpoint(alts, 1)->bInterval <= 16) | |
1427 | subs->syncinterval = get_endpoint(alts, 1)->bInterval - 1; | |
1428 | else | |
1429 | subs->syncinterval = 3; | |
1da177e4 LT |
1430 | } |
1431 | ||
1432 | /* always fill max packet size */ | |
de48c7bc | 1433 | if (fmt->attributes & UAC_EP_CS_ATTR_FILL_MAX) |
1da177e4 LT |
1434 | subs->fill_max = 1; |
1435 | ||
1436 | if ((err = init_usb_pitch(dev, subs->interface, alts, fmt)) < 0) | |
1437 | return err; | |
1438 | ||
1439 | subs->cur_audiofmt = fmt; | |
1440 | ||
7d2b451e SK |
1441 | switch (subs->stream->chip->usb_id) { |
1442 | case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ | |
1443 | case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ | |
1444 | case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ | |
1445 | set_format_emu_quirk(subs, fmt); | |
1446 | break; | |
1447 | } | |
1448 | ||
1da177e4 | 1449 | #if 0 |
54530bde TI |
1450 | printk(KERN_DEBUG |
1451 | "setting done: format = %d, rate = %d..%d, channels = %d\n", | |
2a56f51b | 1452 | fmt->format, fmt->rate_min, fmt->rate_max, fmt->channels); |
54530bde TI |
1453 | printk(KERN_DEBUG |
1454 | " datapipe = 0x%0x, syncpipe = 0x%0x\n", | |
1da177e4 LT |
1455 | subs->datapipe, subs->syncpipe); |
1456 | #endif | |
1457 | ||
1458 | return 0; | |
1459 | } | |
1460 | ||
1461 | /* | |
1462 | * hw_params callback | |
1463 | * | |
1464 | * allocate a buffer and set the given audio format. | |
1465 | * | |
1466 | * so far we use a physically linear buffer although packetize transfer | |
1467 | * doesn't need a continuous area. | |
1468 | * if sg buffer is supported on the later version of alsa, we'll follow | |
1469 | * that. | |
1470 | */ | |
86e07d34 TI |
1471 | static int snd_usb_hw_params(struct snd_pcm_substream *substream, |
1472 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 | 1473 | { |
88518275 | 1474 | struct snd_usb_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
1475 | struct audioformat *fmt; |
1476 | unsigned int channels, rate, format; | |
1477 | int ret, changed; | |
1478 | ||
c55675e3 CL |
1479 | ret = snd_pcm_lib_alloc_vmalloc_buffer(substream, |
1480 | params_buffer_bytes(hw_params)); | |
1da177e4 LT |
1481 | if (ret < 0) |
1482 | return ret; | |
1483 | ||
1484 | format = params_format(hw_params); | |
1485 | rate = params_rate(hw_params); | |
1486 | channels = params_channels(hw_params); | |
1487 | fmt = find_format(subs, format, rate, channels); | |
07f51a72 | 1488 | if (!fmt) { |
b9d710b3 | 1489 | snd_printd(KERN_DEBUG "cannot set format: format = %#x, rate = %d, channels = %d\n", |
21a3479a | 1490 | format, rate, channels); |
1da177e4 LT |
1491 | return -EINVAL; |
1492 | } | |
1493 | ||
1494 | changed = subs->cur_audiofmt != fmt || | |
1495 | subs->period_bytes != params_period_bytes(hw_params) || | |
1496 | subs->cur_rate != rate; | |
1497 | if ((ret = set_format(subs, fmt)) < 0) | |
1498 | return ret; | |
1499 | ||
1500 | if (subs->cur_rate != rate) { | |
1501 | struct usb_host_interface *alts; | |
1502 | struct usb_interface *iface; | |
1503 | iface = usb_ifnum_to_if(subs->dev, fmt->iface); | |
1504 | alts = &iface->altsetting[fmt->altset_idx]; | |
1505 | ret = init_usb_sample_rate(subs->dev, subs->interface, alts, fmt, rate); | |
1506 | if (ret < 0) | |
1507 | return ret; | |
1508 | subs->cur_rate = rate; | |
1509 | } | |
1510 | ||
1511 | if (changed) { | |
1512 | /* format changed */ | |
1513 | release_substream_urbs(subs, 0); | |
1514 | /* influenced: period_bytes, channels, rate, format, */ | |
1515 | ret = init_substream_urbs(subs, params_period_bytes(hw_params), | |
1516 | params_rate(hw_params), | |
1517 | snd_pcm_format_physical_width(params_format(hw_params)) * params_channels(hw_params)); | |
1518 | } | |
1519 | ||
1520 | return ret; | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * hw_free callback | |
1525 | * | |
1526 | * reset the audio format and release the buffer | |
1527 | */ | |
86e07d34 | 1528 | static int snd_usb_hw_free(struct snd_pcm_substream *substream) |
1da177e4 | 1529 | { |
88518275 | 1530 | struct snd_usb_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
1531 | |
1532 | subs->cur_audiofmt = NULL; | |
1533 | subs->cur_rate = 0; | |
1534 | subs->period_bytes = 0; | |
de1b8b93 TI |
1535 | if (!subs->stream->chip->shutdown) |
1536 | release_substream_urbs(subs, 0); | |
c55675e3 | 1537 | return snd_pcm_lib_free_vmalloc_buffer(substream); |
1da177e4 LT |
1538 | } |
1539 | ||
1540 | /* | |
1541 | * prepare callback | |
1542 | * | |
1543 | * only a few subtle things... | |
1544 | */ | |
86e07d34 | 1545 | static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) |
1da177e4 | 1546 | { |
86e07d34 TI |
1547 | struct snd_pcm_runtime *runtime = substream->runtime; |
1548 | struct snd_usb_substream *subs = runtime->private_data; | |
1da177e4 LT |
1549 | |
1550 | if (! subs->cur_audiofmt) { | |
1551 | snd_printk(KERN_ERR "usbaudio: no format is specified!\n"); | |
1552 | return -ENXIO; | |
1553 | } | |
1554 | ||
1555 | /* some unit conversions in runtime */ | |
1556 | subs->maxframesize = bytes_to_frames(runtime, subs->maxpacksize); | |
1557 | subs->curframesize = bytes_to_frames(runtime, subs->curpacksize); | |
1558 | ||
1559 | /* reset the pointer */ | |
1da177e4 | 1560 | subs->hwptr_done = 0; |
1da177e4 LT |
1561 | subs->transfer_done = 0; |
1562 | subs->phase = 0; | |
ae1ec5e1 | 1563 | runtime->delay = 0; |
1da177e4 LT |
1564 | |
1565 | /* clear urbs (to be sure) */ | |
1566 | deactivate_urbs(subs, 0, 1); | |
1567 | wait_clear_urbs(subs); | |
1568 | ||
b55bbf06 CL |
1569 | /* for playback, submit the URBs now; otherwise, the first hwptr_done |
1570 | * updates for all URBs would happen at the same time when starting */ | |
1571 | if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { | |
e4f8e656 | 1572 | subs->ops.prepare = prepare_nodata_playback_urb; |
b55bbf06 CL |
1573 | return start_urbs(subs, runtime); |
1574 | } else | |
1575 | return 0; | |
1da177e4 LT |
1576 | } |
1577 | ||
1700f308 | 1578 | static struct snd_pcm_hardware snd_usb_hardware = |
1da177e4 | 1579 | { |
49045d3d CL |
1580 | .info = SNDRV_PCM_INFO_MMAP | |
1581 | SNDRV_PCM_INFO_MMAP_VALID | | |
1582 | SNDRV_PCM_INFO_BATCH | | |
1583 | SNDRV_PCM_INFO_INTERLEAVED | | |
e4f8e656 CL |
1584 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
1585 | SNDRV_PCM_INFO_PAUSE, | |
d31cbbfd | 1586 | .buffer_bytes_max = 1024 * 1024, |
1da177e4 | 1587 | .period_bytes_min = 64, |
d31cbbfd | 1588 | .period_bytes_max = 512 * 1024, |
1da177e4 LT |
1589 | .periods_min = 2, |
1590 | .periods_max = 1024, | |
1591 | }; | |
1592 | ||
1593 | /* | |
1594 | * h/w constraints | |
1595 | */ | |
1596 | ||
1597 | #ifdef HW_CONST_DEBUG | |
1598 | #define hwc_debug(fmt, args...) printk(KERN_DEBUG fmt, ##args) | |
1599 | #else | |
1600 | #define hwc_debug(fmt, args...) /**/ | |
1601 | #endif | |
1602 | ||
a7d9c099 CL |
1603 | static int hw_check_valid_format(struct snd_usb_substream *subs, |
1604 | struct snd_pcm_hw_params *params, | |
1605 | struct audioformat *fp) | |
1da177e4 | 1606 | { |
86e07d34 TI |
1607 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
1608 | struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
1609 | struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); | |
a7d9c099 CL |
1610 | struct snd_interval *pt = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME); |
1611 | unsigned int ptime; | |
1da177e4 LT |
1612 | |
1613 | /* check the format */ | |
07f51a72 | 1614 | if (!snd_mask_test(fmts, fp->format)) { |
1da177e4 LT |
1615 | hwc_debug(" > check: no supported format %d\n", fp->format); |
1616 | return 0; | |
1617 | } | |
1618 | /* check the channels */ | |
1619 | if (fp->channels < ct->min || fp->channels > ct->max) { | |
1620 | hwc_debug(" > check: no valid channels %d (%d/%d)\n", fp->channels, ct->min, ct->max); | |
1621 | return 0; | |
1622 | } | |
1623 | /* check the rate is within the range */ | |
1624 | if (fp->rate_min > it->max || (fp->rate_min == it->max && it->openmax)) { | |
1625 | hwc_debug(" > check: rate_min %d > max %d\n", fp->rate_min, it->max); | |
1626 | return 0; | |
1627 | } | |
1628 | if (fp->rate_max < it->min || (fp->rate_max == it->min && it->openmin)) { | |
1629 | hwc_debug(" > check: rate_max %d < min %d\n", fp->rate_max, it->min); | |
1630 | return 0; | |
1631 | } | |
a7d9c099 CL |
1632 | /* check whether the period time is >= the data packet interval */ |
1633 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) { | |
1634 | ptime = 125 * (1 << fp->datainterval); | |
1635 | if (ptime > pt->max || (ptime == pt->max && pt->openmax)) { | |
1636 | hwc_debug(" > check: ptime %u > max %u\n", ptime, pt->max); | |
1637 | return 0; | |
1638 | } | |
1639 | } | |
1da177e4 LT |
1640 | return 1; |
1641 | } | |
1642 | ||
86e07d34 TI |
1643 | static int hw_rule_rate(struct snd_pcm_hw_params *params, |
1644 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 1645 | { |
86e07d34 | 1646 | struct snd_usb_substream *subs = rule->private; |
1da177e4 | 1647 | struct list_head *p; |
86e07d34 | 1648 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
1da177e4 LT |
1649 | unsigned int rmin, rmax; |
1650 | int changed; | |
1651 | ||
1652 | hwc_debug("hw_rule_rate: (%d,%d)\n", it->min, it->max); | |
1653 | changed = 0; | |
1654 | rmin = rmax = 0; | |
1655 | list_for_each(p, &subs->fmt_list) { | |
1656 | struct audioformat *fp; | |
1657 | fp = list_entry(p, struct audioformat, list); | |
a7d9c099 | 1658 | if (!hw_check_valid_format(subs, params, fp)) |
1da177e4 LT |
1659 | continue; |
1660 | if (changed++) { | |
1661 | if (rmin > fp->rate_min) | |
1662 | rmin = fp->rate_min; | |
1663 | if (rmax < fp->rate_max) | |
1664 | rmax = fp->rate_max; | |
1665 | } else { | |
1666 | rmin = fp->rate_min; | |
1667 | rmax = fp->rate_max; | |
1668 | } | |
1669 | } | |
1670 | ||
07f51a72 | 1671 | if (!changed) { |
1da177e4 LT |
1672 | hwc_debug(" --> get empty\n"); |
1673 | it->empty = 1; | |
1674 | return -EINVAL; | |
1675 | } | |
1676 | ||
1677 | changed = 0; | |
1678 | if (it->min < rmin) { | |
1679 | it->min = rmin; | |
1680 | it->openmin = 0; | |
1681 | changed = 1; | |
1682 | } | |
1683 | if (it->max > rmax) { | |
1684 | it->max = rmax; | |
1685 | it->openmax = 0; | |
1686 | changed = 1; | |
1687 | } | |
1688 | if (snd_interval_checkempty(it)) { | |
1689 | it->empty = 1; | |
1690 | return -EINVAL; | |
1691 | } | |
1692 | hwc_debug(" --> (%d, %d) (changed = %d)\n", it->min, it->max, changed); | |
1693 | return changed; | |
1694 | } | |
1695 | ||
1696 | ||
86e07d34 TI |
1697 | static int hw_rule_channels(struct snd_pcm_hw_params *params, |
1698 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 1699 | { |
86e07d34 | 1700 | struct snd_usb_substream *subs = rule->private; |
1da177e4 | 1701 | struct list_head *p; |
86e07d34 | 1702 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); |
1da177e4 LT |
1703 | unsigned int rmin, rmax; |
1704 | int changed; | |
1705 | ||
1706 | hwc_debug("hw_rule_channels: (%d,%d)\n", it->min, it->max); | |
1707 | changed = 0; | |
1708 | rmin = rmax = 0; | |
1709 | list_for_each(p, &subs->fmt_list) { | |
1710 | struct audioformat *fp; | |
1711 | fp = list_entry(p, struct audioformat, list); | |
a7d9c099 | 1712 | if (!hw_check_valid_format(subs, params, fp)) |
1da177e4 LT |
1713 | continue; |
1714 | if (changed++) { | |
1715 | if (rmin > fp->channels) | |
1716 | rmin = fp->channels; | |
1717 | if (rmax < fp->channels) | |
1718 | rmax = fp->channels; | |
1719 | } else { | |
1720 | rmin = fp->channels; | |
1721 | rmax = fp->channels; | |
1722 | } | |
1723 | } | |
1724 | ||
07f51a72 | 1725 | if (!changed) { |
1da177e4 LT |
1726 | hwc_debug(" --> get empty\n"); |
1727 | it->empty = 1; | |
1728 | return -EINVAL; | |
1729 | } | |
1730 | ||
1731 | changed = 0; | |
1732 | if (it->min < rmin) { | |
1733 | it->min = rmin; | |
1734 | it->openmin = 0; | |
1735 | changed = 1; | |
1736 | } | |
1737 | if (it->max > rmax) { | |
1738 | it->max = rmax; | |
1739 | it->openmax = 0; | |
1740 | changed = 1; | |
1741 | } | |
1742 | if (snd_interval_checkempty(it)) { | |
1743 | it->empty = 1; | |
1744 | return -EINVAL; | |
1745 | } | |
1746 | hwc_debug(" --> (%d, %d) (changed = %d)\n", it->min, it->max, changed); | |
1747 | return changed; | |
1748 | } | |
1749 | ||
86e07d34 TI |
1750 | static int hw_rule_format(struct snd_pcm_hw_params *params, |
1751 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 1752 | { |
86e07d34 | 1753 | struct snd_usb_substream *subs = rule->private; |
1da177e4 | 1754 | struct list_head *p; |
86e07d34 | 1755 | struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
1da177e4 LT |
1756 | u64 fbits; |
1757 | u32 oldbits[2]; | |
1758 | int changed; | |
1759 | ||
1760 | hwc_debug("hw_rule_format: %x:%x\n", fmt->bits[0], fmt->bits[1]); | |
1761 | fbits = 0; | |
1762 | list_for_each(p, &subs->fmt_list) { | |
1763 | struct audioformat *fp; | |
1764 | fp = list_entry(p, struct audioformat, list); | |
a7d9c099 | 1765 | if (!hw_check_valid_format(subs, params, fp)) |
1da177e4 LT |
1766 | continue; |
1767 | fbits |= (1ULL << fp->format); | |
1768 | } | |
1769 | ||
1770 | oldbits[0] = fmt->bits[0]; | |
1771 | oldbits[1] = fmt->bits[1]; | |
1772 | fmt->bits[0] &= (u32)fbits; | |
1773 | fmt->bits[1] &= (u32)(fbits >> 32); | |
07f51a72 | 1774 | if (!fmt->bits[0] && !fmt->bits[1]) { |
1da177e4 LT |
1775 | hwc_debug(" --> get empty\n"); |
1776 | return -EINVAL; | |
1777 | } | |
1778 | changed = (oldbits[0] != fmt->bits[0] || oldbits[1] != fmt->bits[1]); | |
1779 | hwc_debug(" --> %x:%x (changed = %d)\n", fmt->bits[0], fmt->bits[1], changed); | |
1780 | return changed; | |
1781 | } | |
1782 | ||
a7d9c099 CL |
1783 | static int hw_rule_period_time(struct snd_pcm_hw_params *params, |
1784 | struct snd_pcm_hw_rule *rule) | |
1785 | { | |
1786 | struct snd_usb_substream *subs = rule->private; | |
1787 | struct audioformat *fp; | |
1788 | struct snd_interval *it; | |
1789 | unsigned char min_datainterval; | |
1790 | unsigned int pmin; | |
1791 | int changed; | |
1792 | ||
1793 | it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME); | |
1794 | hwc_debug("hw_rule_period_time: (%u,%u)\n", it->min, it->max); | |
1795 | min_datainterval = 0xff; | |
1796 | list_for_each_entry(fp, &subs->fmt_list, list) { | |
1797 | if (!hw_check_valid_format(subs, params, fp)) | |
1798 | continue; | |
1799 | min_datainterval = min(min_datainterval, fp->datainterval); | |
1800 | } | |
1801 | if (min_datainterval == 0xff) { | |
1802 | hwc_debug(" --> get emtpy\n"); | |
1803 | it->empty = 1; | |
1804 | return -EINVAL; | |
1805 | } | |
1806 | pmin = 125 * (1 << min_datainterval); | |
1807 | changed = 0; | |
1808 | if (it->min < pmin) { | |
1809 | it->min = pmin; | |
1810 | it->openmin = 0; | |
1811 | changed = 1; | |
1812 | } | |
1813 | if (snd_interval_checkempty(it)) { | |
1814 | it->empty = 1; | |
1815 | return -EINVAL; | |
1816 | } | |
1817 | hwc_debug(" --> (%u,%u) (changed = %d)\n", it->min, it->max, changed); | |
1818 | return changed; | |
1819 | } | |
1820 | ||
a79eee8d LR |
1821 | /* |
1822 | * If the device supports unusual bit rates, does the request meet these? | |
1823 | */ | |
1824 | static int snd_usb_pcm_check_knot(struct snd_pcm_runtime *runtime, | |
1825 | struct snd_usb_substream *subs) | |
1826 | { | |
8fec560d TI |
1827 | struct audioformat *fp; |
1828 | int count = 0, needs_knot = 0; | |
a79eee8d LR |
1829 | int err; |
1830 | ||
8fec560d TI |
1831 | list_for_each_entry(fp, &subs->fmt_list, list) { |
1832 | if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) | |
1833 | return 0; | |
1834 | count += fp->nr_rates; | |
918f3a0e | 1835 | if (fp->rates & SNDRV_PCM_RATE_KNOT) |
8fec560d | 1836 | needs_knot = 1; |
a79eee8d | 1837 | } |
8fec560d TI |
1838 | if (!needs_knot) |
1839 | return 0; | |
1840 | ||
1841 | subs->rate_list.count = count; | |
1842 | subs->rate_list.list = kmalloc(sizeof(int) * count, GFP_KERNEL); | |
1843 | subs->rate_list.mask = 0; | |
1844 | count = 0; | |
1845 | list_for_each_entry(fp, &subs->fmt_list, list) { | |
1846 | int i; | |
1847 | for (i = 0; i < fp->nr_rates; i++) | |
1848 | subs->rate_list.list[count++] = fp->rate_table[i]; | |
1849 | } | |
1850 | err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
1851 | &subs->rate_list); | |
1852 | if (err < 0) | |
1853 | return err; | |
a79eee8d LR |
1854 | |
1855 | return 0; | |
1856 | } | |
1857 | ||
1da177e4 LT |
1858 | |
1859 | /* | |
1860 | * set up the runtime hardware information. | |
1861 | */ | |
1862 | ||
86e07d34 | 1863 | static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs) |
1da177e4 LT |
1864 | { |
1865 | struct list_head *p; | |
a7d9c099 CL |
1866 | unsigned int pt, ptmin; |
1867 | int param_period_time_if_needed; | |
1da177e4 LT |
1868 | int err; |
1869 | ||
1870 | runtime->hw.formats = subs->formats; | |
1871 | ||
1872 | runtime->hw.rate_min = 0x7fffffff; | |
1873 | runtime->hw.rate_max = 0; | |
1874 | runtime->hw.channels_min = 256; | |
1875 | runtime->hw.channels_max = 0; | |
1876 | runtime->hw.rates = 0; | |
a7d9c099 | 1877 | ptmin = UINT_MAX; |
1da177e4 LT |
1878 | /* check min/max rates and channels */ |
1879 | list_for_each(p, &subs->fmt_list) { | |
1880 | struct audioformat *fp; | |
1881 | fp = list_entry(p, struct audioformat, list); | |
1882 | runtime->hw.rates |= fp->rates; | |
1883 | if (runtime->hw.rate_min > fp->rate_min) | |
1884 | runtime->hw.rate_min = fp->rate_min; | |
1885 | if (runtime->hw.rate_max < fp->rate_max) | |
1886 | runtime->hw.rate_max = fp->rate_max; | |
1887 | if (runtime->hw.channels_min > fp->channels) | |
1888 | runtime->hw.channels_min = fp->channels; | |
1889 | if (runtime->hw.channels_max < fp->channels) | |
1890 | runtime->hw.channels_max = fp->channels; | |
de48c7bc | 1891 | if (fp->fmt_type == UAC_FORMAT_TYPE_II && fp->frame_size > 0) { |
1da177e4 LT |
1892 | /* FIXME: there might be more than one audio formats... */ |
1893 | runtime->hw.period_bytes_min = runtime->hw.period_bytes_max = | |
1894 | fp->frame_size; | |
1895 | } | |
a7d9c099 CL |
1896 | pt = 125 * (1 << fp->datainterval); |
1897 | ptmin = min(ptmin, pt); | |
1da177e4 LT |
1898 | } |
1899 | ||
a7d9c099 CL |
1900 | param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME; |
1901 | if (snd_usb_get_speed(subs->dev) != USB_SPEED_HIGH) | |
1902 | /* full speed devices have fixed data packet interval */ | |
1903 | ptmin = 1000; | |
1904 | if (ptmin == 1000) | |
1905 | /* if period time doesn't go below 1 ms, no rules needed */ | |
1906 | param_period_time_if_needed = -1; | |
1da177e4 | 1907 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, |
a7d9c099 | 1908 | ptmin, UINT_MAX); |
1da177e4 | 1909 | |
4608eb08 CL |
1910 | if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, |
1911 | hw_rule_rate, subs, | |
1912 | SNDRV_PCM_HW_PARAM_FORMAT, | |
1913 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
a7d9c099 | 1914 | param_period_time_if_needed, |
4608eb08 CL |
1915 | -1)) < 0) |
1916 | return err; | |
1917 | if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, | |
1918 | hw_rule_channels, subs, | |
1919 | SNDRV_PCM_HW_PARAM_FORMAT, | |
1920 | SNDRV_PCM_HW_PARAM_RATE, | |
a7d9c099 | 1921 | param_period_time_if_needed, |
4608eb08 CL |
1922 | -1)) < 0) |
1923 | return err; | |
1924 | if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, | |
1925 | hw_rule_format, subs, | |
1926 | SNDRV_PCM_HW_PARAM_RATE, | |
1927 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
a7d9c099 | 1928 | param_period_time_if_needed, |
4608eb08 CL |
1929 | -1)) < 0) |
1930 | return err; | |
a7d9c099 CL |
1931 | if (param_period_time_if_needed >= 0) { |
1932 | err = snd_pcm_hw_rule_add(runtime, 0, | |
1933 | SNDRV_PCM_HW_PARAM_PERIOD_TIME, | |
1934 | hw_rule_period_time, subs, | |
1935 | SNDRV_PCM_HW_PARAM_FORMAT, | |
1936 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
1937 | SNDRV_PCM_HW_PARAM_RATE, | |
1938 | -1); | |
1939 | if (err < 0) | |
1940 | return err; | |
1941 | } | |
4608eb08 | 1942 | if ((err = snd_usb_pcm_check_knot(runtime, subs)) < 0) |
5a220c86 | 1943 | return err; |
1da177e4 LT |
1944 | return 0; |
1945 | } | |
1946 | ||
1700f308 | 1947 | static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction) |
1da177e4 | 1948 | { |
86e07d34 TI |
1949 | struct snd_usb_stream *as = snd_pcm_substream_chip(substream); |
1950 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1951 | struct snd_usb_substream *subs = &as->substream[direction]; | |
1da177e4 LT |
1952 | |
1953 | subs->interface = -1; | |
1954 | subs->format = 0; | |
1700f308 | 1955 | runtime->hw = snd_usb_hardware; |
1da177e4 LT |
1956 | runtime->private_data = subs; |
1957 | subs->pcm_substream = substream; | |
1958 | return setup_hw_info(runtime, subs); | |
1959 | } | |
1960 | ||
86e07d34 | 1961 | static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction) |
1da177e4 | 1962 | { |
86e07d34 TI |
1963 | struct snd_usb_stream *as = snd_pcm_substream_chip(substream); |
1964 | struct snd_usb_substream *subs = &as->substream[direction]; | |
1da177e4 | 1965 | |
78b8d5d2 | 1966 | if (!as->chip->shutdown && subs->interface >= 0) { |
1da177e4 LT |
1967 | usb_set_interface(subs->dev, subs->interface, 0); |
1968 | subs->interface = -1; | |
1969 | } | |
1970 | subs->pcm_substream = NULL; | |
1971 | return 0; | |
1972 | } | |
1973 | ||
86e07d34 | 1974 | static int snd_usb_playback_open(struct snd_pcm_substream *substream) |
1da177e4 | 1975 | { |
1700f308 | 1976 | return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK); |
1da177e4 LT |
1977 | } |
1978 | ||
86e07d34 | 1979 | static int snd_usb_playback_close(struct snd_pcm_substream *substream) |
1da177e4 LT |
1980 | { |
1981 | return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_PLAYBACK); | |
1982 | } | |
1983 | ||
86e07d34 | 1984 | static int snd_usb_capture_open(struct snd_pcm_substream *substream) |
1da177e4 | 1985 | { |
1700f308 | 1986 | return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE); |
1da177e4 LT |
1987 | } |
1988 | ||
86e07d34 | 1989 | static int snd_usb_capture_close(struct snd_pcm_substream *substream) |
1da177e4 LT |
1990 | { |
1991 | return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_CAPTURE); | |
1992 | } | |
1993 | ||
86e07d34 | 1994 | static struct snd_pcm_ops snd_usb_playback_ops = { |
1da177e4 LT |
1995 | .open = snd_usb_playback_open, |
1996 | .close = snd_usb_playback_close, | |
1997 | .ioctl = snd_pcm_lib_ioctl, | |
1998 | .hw_params = snd_usb_hw_params, | |
1999 | .hw_free = snd_usb_hw_free, | |
2000 | .prepare = snd_usb_pcm_prepare, | |
b55bbf06 | 2001 | .trigger = snd_usb_pcm_playback_trigger, |
1da177e4 | 2002 | .pointer = snd_usb_pcm_pointer, |
c55675e3 | 2003 | .page = snd_pcm_lib_get_vmalloc_page, |
c32d977b | 2004 | .mmap = snd_pcm_lib_mmap_vmalloc, |
1da177e4 LT |
2005 | }; |
2006 | ||
86e07d34 | 2007 | static struct snd_pcm_ops snd_usb_capture_ops = { |
1da177e4 LT |
2008 | .open = snd_usb_capture_open, |
2009 | .close = snd_usb_capture_close, | |
2010 | .ioctl = snd_pcm_lib_ioctl, | |
2011 | .hw_params = snd_usb_hw_params, | |
2012 | .hw_free = snd_usb_hw_free, | |
2013 | .prepare = snd_usb_pcm_prepare, | |
b55bbf06 | 2014 | .trigger = snd_usb_pcm_capture_trigger, |
1da177e4 | 2015 | .pointer = snd_usb_pcm_pointer, |
c55675e3 | 2016 | .page = snd_pcm_lib_get_vmalloc_page, |
c32d977b | 2017 | .mmap = snd_pcm_lib_mmap_vmalloc, |
1da177e4 LT |
2018 | }; |
2019 | ||
2020 | ||
2021 | ||
2022 | /* | |
2023 | * helper functions | |
2024 | */ | |
2025 | ||
2026 | /* | |
2027 | * combine bytes and get an integer value | |
2028 | */ | |
2029 | unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size) | |
2030 | { | |
2031 | switch (size) { | |
2032 | case 1: return *bytes; | |
2033 | case 2: return combine_word(bytes); | |
2034 | case 3: return combine_triple(bytes); | |
2035 | case 4: return combine_quad(bytes); | |
2036 | default: return 0; | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | /* | |
2041 | * parse descriptor buffer and return the pointer starting the given | |
2042 | * descriptor type. | |
2043 | */ | |
2044 | void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype) | |
2045 | { | |
2046 | u8 *p, *end, *next; | |
2047 | ||
2048 | p = descstart; | |
2049 | end = p + desclen; | |
2050 | for (; p < end;) { | |
2051 | if (p[0] < 2) | |
2052 | return NULL; | |
2053 | next = p + p[0]; | |
2054 | if (next > end) | |
2055 | return NULL; | |
2056 | if (p[1] == dtype && (!after || (void *)p > after)) { | |
2057 | return p; | |
2058 | } | |
2059 | p = next; | |
2060 | } | |
2061 | return NULL; | |
2062 | } | |
2063 | ||
2064 | /* | |
2065 | * find a class-specified interface descriptor with the given subtype. | |
2066 | */ | |
2067 | void *snd_usb_find_csint_desc(void *buffer, int buflen, void *after, u8 dsubtype) | |
2068 | { | |
2069 | unsigned char *p = after; | |
2070 | ||
2071 | while ((p = snd_usb_find_desc(buffer, buflen, p, | |
2072 | USB_DT_CS_INTERFACE)) != NULL) { | |
2073 | if (p[0] >= 3 && p[2] == dsubtype) | |
2074 | return p; | |
2075 | } | |
2076 | return NULL; | |
2077 | } | |
2078 | ||
2079 | /* | |
2080 | * Wrapper for usb_control_msg(). | |
2081 | * Allocates a temp buffer to prevent dmaing from/to the stack. | |
2082 | */ | |
2083 | int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, | |
2084 | __u8 requesttype, __u16 value, __u16 index, void *data, | |
2085 | __u16 size, int timeout) | |
2086 | { | |
2087 | int err; | |
2088 | void *buf = NULL; | |
2089 | ||
2090 | if (size > 0) { | |
52978be6 | 2091 | buf = kmemdup(data, size, GFP_KERNEL); |
1da177e4 LT |
2092 | if (!buf) |
2093 | return -ENOMEM; | |
1da177e4 LT |
2094 | } |
2095 | err = usb_control_msg(dev, pipe, request, requesttype, | |
2096 | value, index, buf, size, timeout); | |
2097 | if (size > 0) { | |
2098 | memcpy(data, buf, size); | |
2099 | kfree(buf); | |
2100 | } | |
2101 | return err; | |
2102 | } | |
2103 | ||
2104 | ||
2105 | /* | |
2106 | * entry point for linux usb interface | |
2107 | */ | |
2108 | ||
2109 | static int usb_audio_probe(struct usb_interface *intf, | |
2110 | const struct usb_device_id *id); | |
2111 | static void usb_audio_disconnect(struct usb_interface *intf); | |
93521d27 AM |
2112 | |
2113 | #ifdef CONFIG_PM | |
f85bf29c ON |
2114 | static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message); |
2115 | static int usb_audio_resume(struct usb_interface *intf); | |
93521d27 AM |
2116 | #else |
2117 | #define usb_audio_suspend NULL | |
2118 | #define usb_audio_resume NULL | |
2119 | #endif | |
1da177e4 LT |
2120 | |
2121 | static struct usb_device_id usb_audio_ids [] = { | |
2122 | #include "usbquirks.h" | |
2123 | { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS), | |
2124 | .bInterfaceClass = USB_CLASS_AUDIO, | |
de48c7bc | 2125 | .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL }, |
1da177e4 LT |
2126 | { } /* Terminating entry */ |
2127 | }; | |
2128 | ||
2129 | MODULE_DEVICE_TABLE (usb, usb_audio_ids); | |
2130 | ||
2131 | static struct usb_driver usb_audio_driver = { | |
1da177e4 LT |
2132 | .name = "snd-usb-audio", |
2133 | .probe = usb_audio_probe, | |
2134 | .disconnect = usb_audio_disconnect, | |
f85bf29c ON |
2135 | .suspend = usb_audio_suspend, |
2136 | .resume = usb_audio_resume, | |
1da177e4 LT |
2137 | .id_table = usb_audio_ids, |
2138 | }; | |
2139 | ||
2140 | ||
727f317a | 2141 | #if defined(CONFIG_PROC_FS) && defined(CONFIG_SND_VERBOSE_PROCFS) |
21a3479a | 2142 | |
1da177e4 LT |
2143 | /* |
2144 | * proc interface for list the supported pcm formats | |
2145 | */ | |
86e07d34 | 2146 | static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) |
1da177e4 LT |
2147 | { |
2148 | struct list_head *p; | |
2149 | static char *sync_types[4] = { | |
2150 | "NONE", "ASYNC", "ADAPTIVE", "SYNC" | |
2151 | }; | |
2152 | ||
2153 | list_for_each(p, &subs->fmt_list) { | |
2154 | struct audioformat *fp; | |
2155 | fp = list_entry(p, struct audioformat, list); | |
2156 | snd_iprintf(buffer, " Interface %d\n", fp->iface); | |
2157 | snd_iprintf(buffer, " Altset %d\n", fp->altsetting); | |
6e5265ec TI |
2158 | snd_iprintf(buffer, " Format: %s\n", |
2159 | snd_pcm_format_name(fp->format)); | |
1da177e4 LT |
2160 | snd_iprintf(buffer, " Channels: %d\n", fp->channels); |
2161 | snd_iprintf(buffer, " Endpoint: %d %s (%s)\n", | |
2162 | fp->endpoint & USB_ENDPOINT_NUMBER_MASK, | |
2163 | fp->endpoint & USB_DIR_IN ? "IN" : "OUT", | |
de48c7bc | 2164 | sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]); |
1da177e4 LT |
2165 | if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { |
2166 | snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", | |
2167 | fp->rate_min, fp->rate_max); | |
2168 | } else { | |
2169 | unsigned int i; | |
2170 | snd_iprintf(buffer, " Rates: "); | |
2171 | for (i = 0; i < fp->nr_rates; i++) { | |
2172 | if (i > 0) | |
2173 | snd_iprintf(buffer, ", "); | |
2174 | snd_iprintf(buffer, "%d", fp->rate_table[i]); | |
2175 | } | |
2176 | snd_iprintf(buffer, "\n"); | |
2177 | } | |
744b89e5 CL |
2178 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) |
2179 | snd_iprintf(buffer, " Data packet interval: %d us\n", | |
2180 | 125 * (1 << fp->datainterval)); | |
1da177e4 | 2181 | // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); |
b9d710b3 | 2182 | // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); |
1da177e4 LT |
2183 | } |
2184 | } | |
2185 | ||
86e07d34 | 2186 | static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) |
1da177e4 LT |
2187 | { |
2188 | if (subs->running) { | |
2189 | unsigned int i; | |
2190 | snd_iprintf(buffer, " Status: Running\n"); | |
2191 | snd_iprintf(buffer, " Interface = %d\n", subs->interface); | |
2192 | snd_iprintf(buffer, " Altset = %d\n", subs->format); | |
2193 | snd_iprintf(buffer, " URBs = %d [ ", subs->nurbs); | |
2194 | for (i = 0; i < subs->nurbs; i++) | |
2195 | snd_iprintf(buffer, "%d ", subs->dataurb[i].packets); | |
2196 | snd_iprintf(buffer, "]\n"); | |
2197 | snd_iprintf(buffer, " Packet Size = %d\n", subs->curpacksize); | |
08fe1589 | 2198 | snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", |
1da177e4 LT |
2199 | snd_usb_get_speed(subs->dev) == USB_SPEED_FULL |
2200 | ? get_full_speed_hz(subs->freqm) | |
08fe1589 CL |
2201 | : get_high_speed_hz(subs->freqm), |
2202 | subs->freqm >> 16, subs->freqm & 0xffff); | |
1da177e4 LT |
2203 | } else { |
2204 | snd_iprintf(buffer, " Status: Stop\n"); | |
2205 | } | |
2206 | } | |
2207 | ||
86e07d34 | 2208 | static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
1da177e4 | 2209 | { |
86e07d34 | 2210 | struct snd_usb_stream *stream = entry->private_data; |
1da177e4 LT |
2211 | |
2212 | snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name); | |
2213 | ||
2214 | if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { | |
2215 | snd_iprintf(buffer, "\nPlayback:\n"); | |
2216 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); | |
2217 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); | |
2218 | } | |
2219 | if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { | |
2220 | snd_iprintf(buffer, "\nCapture:\n"); | |
2221 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); | |
2222 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); | |
2223 | } | |
2224 | } | |
2225 | ||
86e07d34 | 2226 | static void proc_pcm_format_add(struct snd_usb_stream *stream) |
1da177e4 | 2227 | { |
86e07d34 | 2228 | struct snd_info_entry *entry; |
1da177e4 | 2229 | char name[32]; |
86e07d34 | 2230 | struct snd_card *card = stream->chip->card; |
1da177e4 LT |
2231 | |
2232 | sprintf(name, "stream%d", stream->pcm_index); | |
07f51a72 | 2233 | if (!snd_card_proc_new(card, name, &entry)) |
bf850204 | 2234 | snd_info_set_text_ops(entry, stream, proc_pcm_format_read); |
1da177e4 LT |
2235 | } |
2236 | ||
21a3479a JK |
2237 | #else |
2238 | ||
2239 | static inline void proc_pcm_format_add(struct snd_usb_stream *stream) | |
2240 | { | |
2241 | } | |
2242 | ||
2243 | #endif | |
1da177e4 LT |
2244 | |
2245 | /* | |
2246 | * initialize the substream instance. | |
2247 | */ | |
2248 | ||
86e07d34 | 2249 | static void init_substream(struct snd_usb_stream *as, int stream, struct audioformat *fp) |
1da177e4 | 2250 | { |
86e07d34 | 2251 | struct snd_usb_substream *subs = &as->substream[stream]; |
1da177e4 LT |
2252 | |
2253 | INIT_LIST_HEAD(&subs->fmt_list); | |
2254 | spin_lock_init(&subs->lock); | |
2255 | ||
2256 | subs->stream = as; | |
2257 | subs->direction = stream; | |
2258 | subs->dev = as->chip->dev; | |
98e89f60 | 2259 | subs->txfr_quirk = as->chip->txfr_quirk; |
d513202e | 2260 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) { |
1da177e4 | 2261 | subs->ops = audio_urb_ops[stream]; |
d513202e | 2262 | } else { |
1da177e4 | 2263 | subs->ops = audio_urb_ops_high_speed[stream]; |
d513202e CL |
2264 | switch (as->chip->usb_id) { |
2265 | case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ | |
2266 | case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ | |
97c889a7 | 2267 | case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ |
d513202e CL |
2268 | subs->ops.retire_sync = retire_playback_sync_urb_hs_emu; |
2269 | break; | |
2270 | } | |
2271 | } | |
1da177e4 LT |
2272 | snd_pcm_set_ops(as->pcm, stream, |
2273 | stream == SNDRV_PCM_STREAM_PLAYBACK ? | |
2274 | &snd_usb_playback_ops : &snd_usb_capture_ops); | |
2275 | ||
2276 | list_add_tail(&fp->list, &subs->fmt_list); | |
2277 | subs->formats |= 1ULL << fp->format; | |
2278 | subs->endpoint = fp->endpoint; | |
2279 | subs->num_formats++; | |
2280 | subs->fmt_type = fp->fmt_type; | |
2281 | } | |
2282 | ||
2283 | ||
2284 | /* | |
2285 | * free a substream | |
2286 | */ | |
86e07d34 | 2287 | static void free_substream(struct snd_usb_substream *subs) |
1da177e4 LT |
2288 | { |
2289 | struct list_head *p, *n; | |
2290 | ||
07f51a72 | 2291 | if (!subs->num_formats) |
1da177e4 LT |
2292 | return; /* not initialized */ |
2293 | list_for_each_safe(p, n, &subs->fmt_list) { | |
2294 | struct audioformat *fp = list_entry(p, struct audioformat, list); | |
2295 | kfree(fp->rate_table); | |
2296 | kfree(fp); | |
2297 | } | |
8fec560d | 2298 | kfree(subs->rate_list.list); |
1da177e4 LT |
2299 | } |
2300 | ||
2301 | ||
2302 | /* | |
2303 | * free a usb stream instance | |
2304 | */ | |
86e07d34 | 2305 | static void snd_usb_audio_stream_free(struct snd_usb_stream *stream) |
1da177e4 LT |
2306 | { |
2307 | free_substream(&stream->substream[0]); | |
2308 | free_substream(&stream->substream[1]); | |
2309 | list_del(&stream->list); | |
2310 | kfree(stream); | |
2311 | } | |
2312 | ||
86e07d34 | 2313 | static void snd_usb_audio_pcm_free(struct snd_pcm *pcm) |
1da177e4 | 2314 | { |
86e07d34 | 2315 | struct snd_usb_stream *stream = pcm->private_data; |
1da177e4 LT |
2316 | if (stream) { |
2317 | stream->pcm = NULL; | |
1da177e4 LT |
2318 | snd_usb_audio_stream_free(stream); |
2319 | } | |
2320 | } | |
2321 | ||
2322 | ||
2323 | /* | |
2324 | * add this endpoint to the chip instance. | |
2325 | * if a stream with the same endpoint already exists, append to it. | |
2326 | * if not, create a new pcm stream. | |
2327 | */ | |
86e07d34 | 2328 | static int add_audio_endpoint(struct snd_usb_audio *chip, int stream, struct audioformat *fp) |
1da177e4 LT |
2329 | { |
2330 | struct list_head *p; | |
86e07d34 TI |
2331 | struct snd_usb_stream *as; |
2332 | struct snd_usb_substream *subs; | |
2333 | struct snd_pcm *pcm; | |
1da177e4 LT |
2334 | int err; |
2335 | ||
2336 | list_for_each(p, &chip->pcm_list) { | |
86e07d34 | 2337 | as = list_entry(p, struct snd_usb_stream, list); |
1da177e4 LT |
2338 | if (as->fmt_type != fp->fmt_type) |
2339 | continue; | |
2340 | subs = &as->substream[stream]; | |
07f51a72 | 2341 | if (!subs->endpoint) |
1da177e4 LT |
2342 | continue; |
2343 | if (subs->endpoint == fp->endpoint) { | |
2344 | list_add_tail(&fp->list, &subs->fmt_list); | |
2345 | subs->num_formats++; | |
2346 | subs->formats |= 1ULL << fp->format; | |
2347 | return 0; | |
2348 | } | |
2349 | } | |
2350 | /* look for an empty stream */ | |
2351 | list_for_each(p, &chip->pcm_list) { | |
86e07d34 | 2352 | as = list_entry(p, struct snd_usb_stream, list); |
1da177e4 LT |
2353 | if (as->fmt_type != fp->fmt_type) |
2354 | continue; | |
2355 | subs = &as->substream[stream]; | |
2356 | if (subs->endpoint) | |
2357 | continue; | |
2358 | err = snd_pcm_new_stream(as->pcm, stream, 1); | |
2359 | if (err < 0) | |
2360 | return err; | |
2361 | init_substream(as, stream, fp); | |
2362 | return 0; | |
2363 | } | |
2364 | ||
2365 | /* create a new pcm */ | |
59feddb2 | 2366 | as = kzalloc(sizeof(*as), GFP_KERNEL); |
07f51a72 | 2367 | if (!as) |
1da177e4 | 2368 | return -ENOMEM; |
1da177e4 LT |
2369 | as->pcm_index = chip->pcm_devs; |
2370 | as->chip = chip; | |
2371 | as->fmt_type = fp->fmt_type; | |
2372 | err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs, | |
2373 | stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0, | |
2374 | stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1, | |
2375 | &pcm); | |
2376 | if (err < 0) { | |
2377 | kfree(as); | |
2378 | return err; | |
2379 | } | |
2380 | as->pcm = pcm; | |
2381 | pcm->private_data = as; | |
2382 | pcm->private_free = snd_usb_audio_pcm_free; | |
2383 | pcm->info_flags = 0; | |
2384 | if (chip->pcm_devs > 0) | |
2385 | sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs); | |
2386 | else | |
2387 | strcpy(pcm->name, "USB Audio"); | |
2388 | ||
2389 | init_substream(as, stream, fp); | |
2390 | ||
2391 | list_add(&as->list, &chip->pcm_list); | |
2392 | chip->pcm_devs++; | |
2393 | ||
2394 | proc_pcm_format_add(as); | |
2395 | ||
2396 | return 0; | |
2397 | } | |
2398 | ||
2399 | ||
2400 | /* | |
2401 | * check if the device uses big-endian samples | |
2402 | */ | |
86e07d34 | 2403 | static int is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) |
1da177e4 | 2404 | { |
27d10f56 CL |
2405 | switch (chip->usb_id) { |
2406 | case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */ | |
2407 | if (fp->endpoint & USB_DIR_IN) | |
1da177e4 | 2408 | return 1; |
27d10f56 CL |
2409 | break; |
2410 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
f8c78b82 TLM |
2411 | if (device_setup[chip->index] == 0x00 || |
2412 | fp->altsetting==1 || fp->altsetting==2 || fp->altsetting==3) | |
2413 | return 1; | |
1da177e4 LT |
2414 | } |
2415 | return 0; | |
2416 | } | |
2417 | ||
2418 | /* | |
2419 | * parse the audio format type I descriptor | |
2420 | * and returns the corresponding pcm format | |
2421 | * | |
2422 | * @dev: usb device | |
2423 | * @fp: audioformat record | |
2424 | * @format: the format tag (wFormatTag) | |
2425 | * @fmt: the format type descriptor | |
2426 | */ | |
53ee98fe DM |
2427 | static int parse_audio_format_i_type(struct snd_usb_audio *chip, |
2428 | struct audioformat *fp, | |
2429 | int format, void *_fmt, | |
2430 | int protocol) | |
1da177e4 | 2431 | { |
53ee98fe | 2432 | int pcm_format, i; |
1da177e4 | 2433 | int sample_width, sample_bytes; |
53ee98fe DM |
2434 | |
2435 | switch (protocol) { | |
2436 | case UAC_VERSION_1: { | |
2437 | struct uac_format_type_i_discrete_descriptor *fmt = _fmt; | |
2438 | sample_width = fmt->bBitResolution; | |
2439 | sample_bytes = fmt->bSubframeSize; | |
2440 | break; | |
2441 | } | |
2442 | ||
2443 | case UAC_VERSION_2: { | |
2444 | struct uac_format_type_i_ext_descriptor *fmt = _fmt; | |
2445 | sample_width = fmt->bBitResolution; | |
2446 | sample_bytes = fmt->bSubslotSize; | |
2447 | ||
2448 | /* | |
2449 | * FIXME | |
2450 | * USB audio class v2 devices specify a bitmap of possible | |
2451 | * audio formats rather than one fix value. For now, we just | |
2452 | * pick one of them and report that as the only possible | |
2453 | * value for this setting. | |
2454 | * The bit allocation map is in fact compatible to the | |
2455 | * wFormatTag of the v1 AS streaming descriptors, which is why | |
2456 | * we can simply map the matrix. | |
2457 | */ | |
2458 | ||
2459 | for (i = 0; i < 5; i++) | |
2460 | if (format & (1UL << i)) { | |
2461 | format = i + 1; | |
2462 | break; | |
2463 | } | |
2464 | ||
2465 | break; | |
2466 | } | |
2467 | ||
2468 | default: | |
2469 | return -EINVAL; | |
2470 | } | |
1da177e4 LT |
2471 | |
2472 | /* FIXME: correct endianess and sign? */ | |
2473 | pcm_format = -1; | |
28e1b773 | 2474 | |
1da177e4 | 2475 | switch (format) { |
de48c7bc | 2476 | case UAC_FORMAT_TYPE_I_UNDEFINED: /* some devices don't define this correctly... */ |
1da177e4 | 2477 | snd_printdd(KERN_INFO "%d:%u:%d : format type 0 is detected, processed as PCM\n", |
27d10f56 | 2478 | chip->dev->devnum, fp->iface, fp->altsetting); |
1da177e4 | 2479 | /* fall-through */ |
de48c7bc | 2480 | case UAC_FORMAT_TYPE_I_PCM: |
1da177e4 LT |
2481 | if (sample_width > sample_bytes * 8) { |
2482 | snd_printk(KERN_INFO "%d:%u:%d : sample bitwidth %d in over sample bytes %d\n", | |
27d10f56 | 2483 | chip->dev->devnum, fp->iface, fp->altsetting, |
1da177e4 LT |
2484 | sample_width, sample_bytes); |
2485 | } | |
2486 | /* check the format byte size */ | |
28e1b773 | 2487 | switch (sample_bytes) { |
1da177e4 LT |
2488 | case 1: |
2489 | pcm_format = SNDRV_PCM_FORMAT_S8; | |
2490 | break; | |
2491 | case 2: | |
27d10f56 | 2492 | if (is_big_endian_format(chip, fp)) |
1da177e4 LT |
2493 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; /* grrr, big endian!! */ |
2494 | else | |
2495 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
2496 | break; | |
2497 | case 3: | |
27d10f56 | 2498 | if (is_big_endian_format(chip, fp)) |
1da177e4 LT |
2499 | pcm_format = SNDRV_PCM_FORMAT_S24_3BE; /* grrr, big endian!! */ |
2500 | else | |
2501 | pcm_format = SNDRV_PCM_FORMAT_S24_3LE; | |
2502 | break; | |
2503 | case 4: | |
2504 | pcm_format = SNDRV_PCM_FORMAT_S32_LE; | |
2505 | break; | |
2506 | default: | |
2507 | snd_printk(KERN_INFO "%d:%u:%d : unsupported sample bitwidth %d in %d bytes\n", | |
28e1b773 DM |
2508 | chip->dev->devnum, fp->iface, fp->altsetting, |
2509 | sample_width, sample_bytes); | |
1da177e4 LT |
2510 | break; |
2511 | } | |
2512 | break; | |
de48c7bc | 2513 | case UAC_FORMAT_TYPE_I_PCM8: |
2a56f51b PM |
2514 | pcm_format = SNDRV_PCM_FORMAT_U8; |
2515 | ||
2516 | /* Dallas DS4201 workaround: it advertises U8 format, but really | |
2517 | supports S8. */ | |
27d10f56 | 2518 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) |
1da177e4 | 2519 | pcm_format = SNDRV_PCM_FORMAT_S8; |
1da177e4 | 2520 | break; |
de48c7bc | 2521 | case UAC_FORMAT_TYPE_I_IEEE_FLOAT: |
1da177e4 LT |
2522 | pcm_format = SNDRV_PCM_FORMAT_FLOAT_LE; |
2523 | break; | |
de48c7bc | 2524 | case UAC_FORMAT_TYPE_I_ALAW: |
1da177e4 LT |
2525 | pcm_format = SNDRV_PCM_FORMAT_A_LAW; |
2526 | break; | |
de48c7bc | 2527 | case UAC_FORMAT_TYPE_I_MULAW: |
1da177e4 LT |
2528 | pcm_format = SNDRV_PCM_FORMAT_MU_LAW; |
2529 | break; | |
2530 | default: | |
2531 | snd_printk(KERN_INFO "%d:%u:%d : unsupported format type %d\n", | |
27d10f56 | 2532 | chip->dev->devnum, fp->iface, fp->altsetting, format); |
1da177e4 LT |
2533 | break; |
2534 | } | |
2535 | return pcm_format; | |
2536 | } | |
2537 | ||
2538 | ||
2539 | /* | |
2540 | * parse the format descriptor and stores the possible sample rates | |
53ee98fe | 2541 | * on the audioformat table (audio class v1). |
1da177e4 LT |
2542 | * |
2543 | * @dev: usb device | |
2544 | * @fp: audioformat record | |
2545 | * @fmt: the format descriptor | |
2546 | * @offset: the start offset of descriptor pointing the rate type | |
2547 | * (7 for type I and II, 8 for type II) | |
2548 | */ | |
53ee98fe DM |
2549 | static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp, |
2550 | unsigned char *fmt, int offset) | |
1da177e4 LT |
2551 | { |
2552 | int nr_rates = fmt[offset]; | |
918f3a0e | 2553 | |
1da177e4 | 2554 | if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { |
de48c7bc | 2555 | snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n", |
27d10f56 | 2556 | chip->dev->devnum, fp->iface, fp->altsetting); |
1da177e4 LT |
2557 | return -1; |
2558 | } | |
2559 | ||
2560 | if (nr_rates) { | |
2561 | /* | |
2562 | * build the rate table and bitmap flags | |
2563 | */ | |
918f3a0e | 2564 | int r, idx; |
918f3a0e | 2565 | |
1da177e4 LT |
2566 | fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL); |
2567 | if (fp->rate_table == NULL) { | |
2568 | snd_printk(KERN_ERR "cannot malloc\n"); | |
2569 | return -1; | |
2570 | } | |
2571 | ||
0412558c TI |
2572 | fp->nr_rates = 0; |
2573 | fp->rate_min = fp->rate_max = 0; | |
1da177e4 | 2574 | for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { |
987411b7 | 2575 | unsigned int rate = combine_triple(&fmt[idx]); |
0412558c TI |
2576 | if (!rate) |
2577 | continue; | |
987411b7 CL |
2578 | /* C-Media CM6501 mislabels its 96 kHz altsetting */ |
2579 | if (rate == 48000 && nr_rates == 1 && | |
3b03cc5b JR |
2580 | (chip->usb_id == USB_ID(0x0d8c, 0x0201) || |
2581 | chip->usb_id == USB_ID(0x0d8c, 0x0102)) && | |
987411b7 CL |
2582 | fp->altsetting == 5 && fp->maxpacksize == 392) |
2583 | rate = 96000; | |
864c1108 AL |
2584 | /* Creative VF0470 Live Cam reports 16 kHz instead of 8kHz */ |
2585 | if (rate == 16000 && chip->usb_id == USB_ID(0x041e, 0x4068)) | |
2586 | rate = 8000; | |
0412558c TI |
2587 | fp->rate_table[fp->nr_rates] = rate; |
2588 | if (!fp->rate_min || rate < fp->rate_min) | |
1da177e4 | 2589 | fp->rate_min = rate; |
0412558c | 2590 | if (!fp->rate_max || rate > fp->rate_max) |
1da177e4 | 2591 | fp->rate_max = rate; |
918f3a0e | 2592 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); |
0412558c | 2593 | fp->nr_rates++; |
1da177e4 | 2594 | } |
0412558c | 2595 | if (!fp->nr_rates) { |
beb60119 GJ |
2596 | hwc_debug("All rates were zero. Skipping format!\n"); |
2597 | return -1; | |
2598 | } | |
1da177e4 LT |
2599 | } else { |
2600 | /* continuous rates */ | |
2601 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
2602 | fp->rate_min = combine_triple(&fmt[offset + 1]); | |
2603 | fp->rate_max = combine_triple(&fmt[offset + 4]); | |
2604 | } | |
2605 | return 0; | |
2606 | } | |
2607 | ||
53ee98fe DM |
2608 | /* |
2609 | * parse the format descriptor and stores the possible sample rates | |
2610 | * on the audioformat table (audio class v2). | |
2611 | */ | |
2612 | static int parse_audio_format_rates_v2(struct snd_usb_audio *chip, | |
2613 | struct audioformat *fp, | |
2614 | struct usb_host_interface *iface) | |
2615 | { | |
2616 | struct usb_device *dev = chip->dev; | |
2617 | unsigned char tmp[2], *data; | |
2618 | int i, nr_rates, data_size, ret = 0; | |
2619 | ||
2620 | /* get the number of sample rates first by only fetching 2 bytes */ | |
de48c7bc | 2621 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, |
53ee98fe DM |
2622 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
2623 | 0x0100, chip->clock_id << 8, tmp, sizeof(tmp), 1000); | |
2624 | ||
2625 | if (ret < 0) { | |
2626 | snd_printk(KERN_ERR "unable to retrieve number of sample rates\n"); | |
2627 | goto err; | |
2628 | } | |
2629 | ||
2630 | nr_rates = (tmp[1] << 8) | tmp[0]; | |
2631 | data_size = 2 + 12 * nr_rates; | |
2632 | data = kzalloc(data_size, GFP_KERNEL); | |
2633 | if (!data) { | |
2634 | ret = -ENOMEM; | |
2635 | goto err; | |
2636 | } | |
2637 | ||
2638 | /* now get the full information */ | |
de48c7bc | 2639 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, |
53ee98fe DM |
2640 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
2641 | 0x0100, chip->clock_id << 8, data, data_size, 1000); | |
2642 | ||
2643 | if (ret < 0) { | |
2644 | snd_printk(KERN_ERR "unable to retrieve sample rate range\n"); | |
2645 | ret = -EINVAL; | |
2646 | goto err_free; | |
2647 | } | |
2648 | ||
2649 | fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL); | |
2650 | if (!fp->rate_table) { | |
2651 | ret = -ENOMEM; | |
2652 | goto err_free; | |
2653 | } | |
2654 | ||
2655 | fp->nr_rates = 0; | |
2656 | fp->rate_min = fp->rate_max = 0; | |
2657 | ||
2658 | for (i = 0; i < nr_rates; i++) { | |
2659 | int rate = combine_quad(&data[2 + 12 * i]); | |
2660 | ||
2661 | fp->rate_table[fp->nr_rates] = rate; | |
2662 | if (!fp->rate_min || rate < fp->rate_min) | |
2663 | fp->rate_min = rate; | |
2664 | if (!fp->rate_max || rate > fp->rate_max) | |
2665 | fp->rate_max = rate; | |
2666 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); | |
2667 | fp->nr_rates++; | |
2668 | } | |
2669 | ||
2670 | err_free: | |
2671 | kfree(data); | |
2672 | err: | |
2673 | return ret; | |
2674 | } | |
2675 | ||
1da177e4 LT |
2676 | /* |
2677 | * parse the format type I and III descriptors | |
2678 | */ | |
53ee98fe DM |
2679 | static int parse_audio_format_i(struct snd_usb_audio *chip, |
2680 | struct audioformat *fp, | |
2681 | int format, void *_fmt, | |
2682 | struct usb_host_interface *iface) | |
1da177e4 | 2683 | { |
53ee98fe DM |
2684 | struct usb_interface_descriptor *altsd = get_iface_desc(iface); |
2685 | struct uac_format_type_i_discrete_descriptor *fmt = _fmt; | |
2686 | int protocol = altsd->bInterfaceProtocol; | |
2687 | int pcm_format, ret; | |
1da177e4 | 2688 | |
de48c7bc | 2689 | if (fmt->bFormatType == UAC_FORMAT_TYPE_III) { |
1da177e4 LT |
2690 | /* FIXME: the format type is really IECxxx |
2691 | * but we give normal PCM format to get the existing | |
2692 | * apps working... | |
2693 | */ | |
cac19c3b TLM |
2694 | switch (chip->usb_id) { |
2695 | ||
2696 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
2697 | if (device_setup[chip->index] == 0x00 && | |
2698 | fp->altsetting == 6) | |
2699 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; | |
2700 | else | |
2701 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
2702 | break; | |
2703 | default: | |
2704 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
2705 | } | |
1da177e4 | 2706 | } else { |
53ee98fe | 2707 | pcm_format = parse_audio_format_i_type(chip, fp, format, fmt, protocol); |
1da177e4 LT |
2708 | if (pcm_format < 0) |
2709 | return -1; | |
2710 | } | |
28e1b773 | 2711 | |
1da177e4 | 2712 | fp->format = pcm_format; |
53ee98fe DM |
2713 | |
2714 | /* gather possible sample rates */ | |
2715 | /* audio class v1 reports possible sample rates as part of the | |
2716 | * proprietary class specific descriptor. | |
2717 | * audio class v2 uses class specific EP0 range requests for that. | |
2718 | */ | |
2719 | switch (protocol) { | |
2720 | case UAC_VERSION_1: | |
2721 | fp->channels = fmt->bNrChannels; | |
2722 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 7); | |
2723 | break; | |
2724 | case UAC_VERSION_2: | |
2725 | /* fp->channels is already set in this case */ | |
2726 | ret = parse_audio_format_rates_v2(chip, fp, iface); | |
2727 | break; | |
2728 | } | |
28e1b773 | 2729 | |
1da177e4 LT |
2730 | if (fp->channels < 1) { |
2731 | snd_printk(KERN_ERR "%d:%u:%d : invalid channels %d\n", | |
27d10f56 | 2732 | chip->dev->devnum, fp->iface, fp->altsetting, fp->channels); |
1da177e4 LT |
2733 | return -1; |
2734 | } | |
53ee98fe DM |
2735 | |
2736 | return ret; | |
1da177e4 LT |
2737 | } |
2738 | ||
2739 | /* | |
28e1b773 | 2740 | * parse the format type II descriptor |
1da177e4 | 2741 | */ |
53ee98fe DM |
2742 | static int parse_audio_format_ii(struct snd_usb_audio *chip, |
2743 | struct audioformat *fp, | |
2744 | int format, void *_fmt, | |
2745 | struct usb_host_interface *iface) | |
1da177e4 | 2746 | { |
53ee98fe DM |
2747 | int brate, framesize, ret; |
2748 | struct usb_interface_descriptor *altsd = get_iface_desc(iface); | |
2749 | int protocol = altsd->bInterfaceProtocol; | |
28e1b773 | 2750 | |
1da177e4 | 2751 | switch (format) { |
de48c7bc | 2752 | case UAC_FORMAT_TYPE_II_AC3: |
1da177e4 LT |
2753 | /* FIXME: there is no AC3 format defined yet */ |
2754 | // fp->format = SNDRV_PCM_FORMAT_AC3; | |
2755 | fp->format = SNDRV_PCM_FORMAT_U8; /* temporarily hack to receive byte streams */ | |
2756 | break; | |
de48c7bc | 2757 | case UAC_FORMAT_TYPE_II_MPEG: |
1da177e4 LT |
2758 | fp->format = SNDRV_PCM_FORMAT_MPEG; |
2759 | break; | |
2760 | default: | |
b9d710b3 | 2761 | snd_printd(KERN_INFO "%d:%u:%d : unknown format tag %#x is detected. processed as MPEG.\n", |
27d10f56 | 2762 | chip->dev->devnum, fp->iface, fp->altsetting, format); |
1da177e4 LT |
2763 | fp->format = SNDRV_PCM_FORMAT_MPEG; |
2764 | break; | |
2765 | } | |
28e1b773 | 2766 | |
1da177e4 | 2767 | fp->channels = 1; |
28e1b773 | 2768 | |
53ee98fe DM |
2769 | switch (protocol) { |
2770 | case UAC_VERSION_1: { | |
2771 | struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; | |
2772 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
2773 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
2774 | snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); | |
2775 | fp->frame_size = framesize; | |
2776 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ | |
2777 | break; | |
2778 | } | |
2779 | case UAC_VERSION_2: { | |
2780 | struct uac_format_type_ii_ext_descriptor *fmt = _fmt; | |
2781 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
2782 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
2783 | snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); | |
2784 | fp->frame_size = framesize; | |
2785 | ret = parse_audio_format_rates_v2(chip, fp, iface); | |
2786 | break; | |
2787 | } | |
2788 | } | |
2789 | ||
2790 | return ret; | |
1da177e4 LT |
2791 | } |
2792 | ||
86e07d34 | 2793 | static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp, |
53ee98fe DM |
2794 | int format, unsigned char *fmt, int stream, |
2795 | struct usb_host_interface *iface) | |
1da177e4 LT |
2796 | { |
2797 | int err; | |
2798 | ||
53ee98fe | 2799 | switch (fmt[3]) { |
de48c7bc DM |
2800 | case UAC_FORMAT_TYPE_I: |
2801 | case UAC_FORMAT_TYPE_III: | |
53ee98fe | 2802 | err = parse_audio_format_i(chip, fp, format, fmt, iface); |
1da177e4 | 2803 | break; |
de48c7bc | 2804 | case UAC_FORMAT_TYPE_II: |
53ee98fe | 2805 | err = parse_audio_format_ii(chip, fp, format, fmt, iface); |
1da177e4 LT |
2806 | break; |
2807 | default: | |
2808 | snd_printd(KERN_INFO "%d:%u:%d : format type %d is not supported yet\n", | |
53ee98fe | 2809 | chip->dev->devnum, fp->iface, fp->altsetting, fmt[3]); |
1da177e4 LT |
2810 | return -1; |
2811 | } | |
53ee98fe | 2812 | fp->fmt_type = fmt[3]; |
1da177e4 LT |
2813 | if (err < 0) |
2814 | return err; | |
2815 | #if 1 | |
33159378 | 2816 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ |
1da177e4 LT |
2817 | /* extigy apparently supports sample rates other than 48k |
2818 | * but not in ordinary way. so we enable only 48k atm. | |
2819 | */ | |
27d10f56 | 2820 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || |
33159378 CL |
2821 | chip->usb_id == USB_ID(0x041e, 0x3020) || |
2822 | chip->usb_id == USB_ID(0x041e, 0x3061)) { | |
de48c7bc | 2823 | if (fmt[3] == UAC_FORMAT_TYPE_I && |
8c1872dc CL |
2824 | fp->rates != SNDRV_PCM_RATE_48000 && |
2825 | fp->rates != SNDRV_PCM_RATE_96000) | |
b4d3f9d4 | 2826 | return -1; |
1da177e4 LT |
2827 | } |
2828 | #endif | |
2829 | return 0; | |
2830 | } | |
2831 | ||
744b89e5 CL |
2832 | static unsigned char parse_datainterval(struct snd_usb_audio *chip, |
2833 | struct usb_host_interface *alts) | |
2834 | { | |
2835 | if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH && | |
2836 | get_endpoint(alts, 0)->bInterval >= 1 && | |
2837 | get_endpoint(alts, 0)->bInterval <= 4) | |
2838 | return get_endpoint(alts, 0)->bInterval - 1; | |
2839 | else | |
2840 | return 0; | |
2841 | } | |
2842 | ||
e311334e TLM |
2843 | static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, |
2844 | int iface, int altno); | |
86e07d34 | 2845 | static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no) |
1da177e4 LT |
2846 | { |
2847 | struct usb_device *dev; | |
2848 | struct usb_interface *iface; | |
2849 | struct usb_host_interface *alts; | |
2850 | struct usb_interface_descriptor *altsd; | |
2851 | int i, altno, err, stream; | |
53ee98fe | 2852 | int format = 0, num_channels = 0; |
8886f33f | 2853 | struct audioformat *fp = NULL; |
1da177e4 | 2854 | unsigned char *fmt, *csep; |
53ee98fe | 2855 | int num, protocol; |
1da177e4 LT |
2856 | |
2857 | dev = chip->dev; | |
2858 | ||
2859 | /* parse the interface's altsettings */ | |
2860 | iface = usb_ifnum_to_if(dev, iface_no); | |
b9d43bcd PM |
2861 | |
2862 | num = iface->num_altsetting; | |
2863 | ||
2864 | /* | |
2865 | * Dallas DS4201 workaround: It presents 5 altsettings, but the last | |
2866 | * one misses syncpipe, and does not produce any sound. | |
2867 | */ | |
2868 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) | |
2869 | num = 4; | |
2870 | ||
2871 | for (i = 0; i < num; i++) { | |
1da177e4 LT |
2872 | alts = &iface->altsetting[i]; |
2873 | altsd = get_iface_desc(alts); | |
53ee98fe | 2874 | protocol = altsd->bInterfaceProtocol; |
1da177e4 LT |
2875 | /* skip invalid one */ |
2876 | if ((altsd->bInterfaceClass != USB_CLASS_AUDIO && | |
2877 | altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || | |
de48c7bc | 2878 | (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING && |
1da177e4 LT |
2879 | altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC) || |
2880 | altsd->bNumEndpoints < 1 || | |
2881 | le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0) | |
2882 | continue; | |
2883 | /* must be isochronous */ | |
2884 | if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != | |
2885 | USB_ENDPOINT_XFER_ISOC) | |
2886 | continue; | |
2887 | /* check direction */ | |
2888 | stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ? | |
2889 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
2890 | altno = altsd->bAlternateSetting; | |
53ee98fe | 2891 | |
e311334e TLM |
2892 | /* audiophile usb: skip altsets incompatible with device_setup |
2893 | */ | |
2894 | if (chip->usb_id == USB_ID(0x0763, 0x2003) && | |
2895 | audiophile_skip_setting_quirk(chip, iface_no, altno)) | |
2896 | continue; | |
1da177e4 LT |
2897 | |
2898 | /* get audio formats */ | |
53ee98fe DM |
2899 | switch (protocol) { |
2900 | case UAC_VERSION_1: { | |
2901 | struct uac_as_header_descriptor_v1 *as = | |
de48c7bc | 2902 | snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL); |
53ee98fe DM |
2903 | |
2904 | if (!as) { | |
de48c7bc | 2905 | snd_printk(KERN_ERR "%d:%u:%d : UAC_AS_GENERAL descriptor not found\n", |
53ee98fe DM |
2906 | dev->devnum, iface_no, altno); |
2907 | continue; | |
2908 | } | |
28e1b773 | 2909 | |
53ee98fe | 2910 | if (as->bLength < sizeof(*as)) { |
de48c7bc | 2911 | snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_AS_GENERAL desc\n", |
53ee98fe DM |
2912 | dev->devnum, iface_no, altno); |
2913 | continue; | |
2914 | } | |
2915 | ||
2916 | format = le16_to_cpu(as->wFormatTag); /* remember the format value */ | |
2917 | break; | |
1da177e4 LT |
2918 | } |
2919 | ||
53ee98fe DM |
2920 | case UAC_VERSION_2: { |
2921 | struct uac_as_header_descriptor_v2 *as = | |
de48c7bc | 2922 | snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL); |
53ee98fe DM |
2923 | |
2924 | if (!as) { | |
de48c7bc | 2925 | snd_printk(KERN_ERR "%d:%u:%d : UAC_AS_GENERAL descriptor not found\n", |
53ee98fe DM |
2926 | dev->devnum, iface_no, altno); |
2927 | continue; | |
2928 | } | |
2929 | ||
2930 | if (as->bLength < sizeof(*as)) { | |
de48c7bc | 2931 | snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_AS_GENERAL desc\n", |
53ee98fe DM |
2932 | dev->devnum, iface_no, altno); |
2933 | continue; | |
2934 | } | |
2935 | ||
2936 | num_channels = as->bNrChannels; | |
2937 | format = le32_to_cpu(as->bmFormats); | |
2938 | ||
2939 | break; | |
1da177e4 LT |
2940 | } |
2941 | ||
53ee98fe DM |
2942 | default: |
2943 | snd_printk(KERN_ERR "%d:%u:%d : unknown interface protocol %04x\n", | |
2944 | dev->devnum, iface_no, altno, protocol); | |
2945 | continue; | |
2946 | } | |
1da177e4 LT |
2947 | |
2948 | /* get format type */ | |
de48c7bc | 2949 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_FORMAT_TYPE); |
1da177e4 | 2950 | if (!fmt) { |
de48c7bc | 2951 | snd_printk(KERN_ERR "%d:%u:%d : no UAC_FORMAT_TYPE desc\n", |
1da177e4 LT |
2952 | dev->devnum, iface_no, altno); |
2953 | continue; | |
2954 | } | |
53ee98fe DM |
2955 | if (((protocol == UAC_VERSION_1) && (fmt[0] < 8)) || |
2956 | ((protocol == UAC_VERSION_2) && (fmt[0] != 6))) { | |
de48c7bc | 2957 | snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc\n", |
1da177e4 LT |
2958 | dev->devnum, iface_no, altno); |
2959 | continue; | |
2960 | } | |
2961 | ||
8886f33f CL |
2962 | /* |
2963 | * Blue Microphones workaround: The last altsetting is identical | |
2964 | * with the previous one, except for a larger packet size, but | |
2965 | * is actually a mislabeled two-channel setting; ignore it. | |
2966 | */ | |
2967 | if (fmt[4] == 1 && fmt[5] == 2 && altno == 2 && num == 3 && | |
2968 | fp && fp->altsetting == 1 && fp->channels == 1 && | |
2969 | fp->format == SNDRV_PCM_FORMAT_S16_LE && | |
53ee98fe | 2970 | protocol == UAC_VERSION_1 && |
8886f33f CL |
2971 | le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == |
2972 | fp->maxpacksize * 2) | |
2973 | continue; | |
2974 | ||
1da177e4 LT |
2975 | csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT); |
2976 | /* Creamware Noah has this descriptor after the 2nd endpoint */ | |
2977 | if (!csep && altsd->bNumEndpoints >= 2) | |
2978 | csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT); | |
de48c7bc | 2979 | if (!csep || csep[0] < 7 || csep[2] != UAC_EP_GENERAL) { |
f8c75790 | 2980 | snd_printk(KERN_WARNING "%d:%u:%d : no or invalid" |
faf8d117 | 2981 | " class specific endpoint descriptor\n", |
1da177e4 | 2982 | dev->devnum, iface_no, altno); |
faf8d117 | 2983 | csep = NULL; |
1da177e4 LT |
2984 | } |
2985 | ||
59feddb2 | 2986 | fp = kzalloc(sizeof(*fp), GFP_KERNEL); |
1da177e4 LT |
2987 | if (! fp) { |
2988 | snd_printk(KERN_ERR "cannot malloc\n"); | |
2989 | return -ENOMEM; | |
2990 | } | |
2991 | ||
1da177e4 LT |
2992 | fp->iface = iface_no; |
2993 | fp->altsetting = altno; | |
2994 | fp->altset_idx = i; | |
2995 | fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; | |
2996 | fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; | |
744b89e5 | 2997 | fp->datainterval = parse_datainterval(chip, alts); |
1da177e4 | 2998 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); |
53ee98fe DM |
2999 | /* num_channels is only set for v2 interfaces */ |
3000 | fp->channels = num_channels; | |
573567e0 CL |
3001 | if (snd_usb_get_speed(dev) == USB_SPEED_HIGH) |
3002 | fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1) | |
3003 | * (fp->maxpacksize & 0x7ff); | |
faf8d117 | 3004 | fp->attributes = csep ? csep[3] : 0; |
1da177e4 LT |
3005 | |
3006 | /* some quirks for attributes here */ | |
3007 | ||
c3f93297 CL |
3008 | switch (chip->usb_id) { |
3009 | case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */ | |
1da177e4 LT |
3010 | /* Optoplay sets the sample rate attribute although |
3011 | * it seems not supporting it in fact. | |
3012 | */ | |
de48c7bc | 3013 | fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE; |
c3f93297 CL |
3014 | break; |
3015 | case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */ | |
3016 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
1da177e4 | 3017 | /* doesn't set the sample rate attribute, but supports it */ |
de48c7bc | 3018 | fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE; |
c3f93297 CL |
3019 | break; |
3020 | case USB_ID(0x047f, 0x0ca1): /* plantronics headset */ | |
3021 | case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is | |
3022 | an older model 77d:223) */ | |
1da177e4 LT |
3023 | /* |
3024 | * plantronics headset and Griffin iMic have set adaptive-in | |
3025 | * although it's really not... | |
3026 | */ | |
de48c7bc | 3027 | fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE; |
1da177e4 | 3028 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
de48c7bc | 3029 | fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE; |
1da177e4 | 3030 | else |
de48c7bc | 3031 | fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC; |
c3f93297 | 3032 | break; |
1da177e4 LT |
3033 | } |
3034 | ||
3035 | /* ok, let's parse further... */ | |
53ee98fe | 3036 | if (parse_audio_format(chip, fp, format, fmt, stream, alts) < 0) { |
1da177e4 LT |
3037 | kfree(fp->rate_table); |
3038 | kfree(fp); | |
3039 | continue; | |
3040 | } | |
3041 | ||
b9d710b3 | 3042 | snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint %#x\n", dev->devnum, iface_no, altno, fp->endpoint); |
1da177e4 LT |
3043 | err = add_audio_endpoint(chip, stream, fp); |
3044 | if (err < 0) { | |
3045 | kfree(fp->rate_table); | |
3046 | kfree(fp); | |
3047 | return err; | |
3048 | } | |
3049 | /* try to set the interface... */ | |
3050 | usb_set_interface(chip->dev, iface_no, altno); | |
3051 | init_usb_pitch(chip->dev, iface_no, alts, fp); | |
3052 | init_usb_sample_rate(chip->dev, iface_no, alts, fp, fp->rate_max); | |
3053 | } | |
3054 | return 0; | |
3055 | } | |
3056 | ||
3057 | ||
3058 | /* | |
3059 | * disconnect streams | |
3060 | * called from snd_usb_audio_disconnect() | |
3061 | */ | |
ee733397 | 3062 | static void snd_usb_stream_disconnect(struct list_head *head) |
1da177e4 LT |
3063 | { |
3064 | int idx; | |
86e07d34 TI |
3065 | struct snd_usb_stream *as; |
3066 | struct snd_usb_substream *subs; | |
1da177e4 | 3067 | |
86e07d34 | 3068 | as = list_entry(head, struct snd_usb_stream, list); |
1da177e4 LT |
3069 | for (idx = 0; idx < 2; idx++) { |
3070 | subs = &as->substream[idx]; | |
3071 | if (!subs->num_formats) | |
3072 | return; | |
3073 | release_substream_urbs(subs, 1); | |
3074 | subs->interface = -1; | |
3075 | } | |
3076 | } | |
3077 | ||
28e1b773 DM |
3078 | static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int interface) |
3079 | { | |
3080 | struct usb_device *dev = chip->dev; | |
3081 | struct usb_host_interface *alts; | |
3082 | struct usb_interface_descriptor *altsd; | |
3083 | struct usb_interface *iface = usb_ifnum_to_if(dev, interface); | |
3084 | ||
3085 | if (!iface) { | |
3086 | snd_printk(KERN_ERR "%d:%u:%d : does not exist\n", | |
3087 | dev->devnum, ctrlif, interface); | |
3088 | return -EINVAL; | |
3089 | } | |
3090 | ||
3091 | if (usb_interface_claimed(iface)) { | |
3092 | snd_printdd(KERN_INFO "%d:%d:%d: skipping, already claimed\n", | |
3093 | dev->devnum, ctrlif, interface); | |
3094 | return -EINVAL; | |
3095 | } | |
3096 | ||
3097 | alts = &iface->altsetting[0]; | |
3098 | altsd = get_iface_desc(alts); | |
3099 | if ((altsd->bInterfaceClass == USB_CLASS_AUDIO || | |
3100 | altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) && | |
de48c7bc | 3101 | altsd->bInterfaceSubClass == USB_SUBCLASS_MIDISTREAMING) { |
28e1b773 DM |
3102 | int err = snd_usbmidi_create(chip->card, iface, |
3103 | &chip->midi_list, NULL); | |
3104 | if (err < 0) { | |
3105 | snd_printk(KERN_ERR "%d:%u:%d: cannot create sequencer device\n", | |
3106 | dev->devnum, ctrlif, interface); | |
3107 | return -EINVAL; | |
3108 | } | |
3109 | usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); | |
3110 | ||
3111 | return 0; | |
3112 | } | |
3113 | ||
3114 | if ((altsd->bInterfaceClass != USB_CLASS_AUDIO && | |
3115 | altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || | |
de48c7bc | 3116 | altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING) { |
28e1b773 DM |
3117 | snd_printdd(KERN_ERR "%d:%u:%d: skipping non-supported interface %d\n", |
3118 | dev->devnum, ctrlif, interface, altsd->bInterfaceClass); | |
3119 | /* skip non-supported classes */ | |
3120 | return -EINVAL; | |
3121 | } | |
3122 | ||
3123 | if (snd_usb_get_speed(dev) == USB_SPEED_LOW) { | |
3124 | snd_printk(KERN_ERR "low speed audio streaming not supported\n"); | |
3125 | return -EINVAL; | |
3126 | } | |
3127 | ||
3128 | if (! parse_audio_endpoints(chip, interface)) { | |
3129 | usb_set_interface(dev, interface, 0); /* reset the current interface */ | |
3130 | usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); | |
3131 | return -EINVAL; | |
3132 | } | |
3133 | ||
3134 | return 0; | |
3135 | } | |
3136 | ||
1da177e4 LT |
3137 | /* |
3138 | * parse audio control descriptor and create pcm/midi streams | |
3139 | */ | |
86e07d34 | 3140 | static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif) |
1da177e4 LT |
3141 | { |
3142 | struct usb_device *dev = chip->dev; | |
3143 | struct usb_host_interface *host_iface; | |
53ee98fe | 3144 | struct usb_interface_descriptor *altsd; |
28e1b773 | 3145 | void *control_header; |
53ee98fe | 3146 | int i, protocol; |
1da177e4 LT |
3147 | |
3148 | /* find audiocontrol interface */ | |
3149 | host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0]; | |
28e1b773 DM |
3150 | control_header = snd_usb_find_csint_desc(host_iface->extra, |
3151 | host_iface->extralen, | |
de48c7bc | 3152 | NULL, UAC_HEADER); |
53ee98fe DM |
3153 | altsd = get_iface_desc(host_iface); |
3154 | protocol = altsd->bInterfaceProtocol; | |
28e1b773 DM |
3155 | |
3156 | if (!control_header) { | |
de48c7bc | 3157 | snd_printk(KERN_ERR "cannot find UAC_HEADER\n"); |
1da177e4 LT |
3158 | return -EINVAL; |
3159 | } | |
28e1b773 | 3160 | |
53ee98fe DM |
3161 | switch (protocol) { |
3162 | case UAC_VERSION_1: { | |
3163 | struct uac_ac_header_descriptor_v1 *h1 = control_header; | |
28e1b773 | 3164 | |
53ee98fe DM |
3165 | if (!h1->bInCollection) { |
3166 | snd_printk(KERN_INFO "skipping empty audio interface (v1)\n"); | |
3167 | return -EINVAL; | |
3168 | } | |
3169 | ||
3170 | if (h1->bLength < sizeof(*h1) + h1->bInCollection) { | |
de48c7bc | 3171 | snd_printk(KERN_ERR "invalid UAC_HEADER (v1)\n"); |
53ee98fe DM |
3172 | return -EINVAL; |
3173 | } | |
3174 | ||
3175 | for (i = 0; i < h1->bInCollection; i++) | |
3176 | snd_usb_create_stream(chip, ctrlif, h1->baInterfaceNr[i]); | |
3177 | ||
3178 | break; | |
1da177e4 LT |
3179 | } |
3180 | ||
53ee98fe DM |
3181 | case UAC_VERSION_2: { |
3182 | struct uac_clock_source_descriptor *cs; | |
3183 | struct usb_interface_assoc_descriptor *assoc = | |
3184 | usb_ifnum_to_if(dev, ctrlif)->intf_assoc; | |
3185 | ||
3186 | if (!assoc) { | |
3187 | snd_printk(KERN_ERR "Audio class v2 interfaces need an interface association\n"); | |
3188 | return -EINVAL; | |
3189 | } | |
3190 | ||
3191 | /* FIXME: for now, we expect there is at least one clock source | |
3192 | * descriptor and we always take the first one. | |
3193 | * We should properly support devices with multiple clock sources, | |
3194 | * clock selectors and sample rate conversion units. */ | |
3195 | ||
3196 | cs = snd_usb_find_csint_desc(host_iface->extra, host_iface->extralen, | |
de48c7bc | 3197 | NULL, UAC_CLOCK_SOURCE); |
53ee98fe DM |
3198 | |
3199 | if (!cs) { | |
3200 | snd_printk(KERN_ERR "CLOCK_SOURCE descriptor not found\n"); | |
3201 | return -EINVAL; | |
3202 | } | |
3203 | ||
3204 | chip->clock_id = cs->bClockID; | |
3205 | ||
3206 | for (i = 0; i < assoc->bInterfaceCount; i++) { | |
3207 | int intf = assoc->bFirstInterface + i; | |
3208 | ||
3209 | if (intf != ctrlif) | |
3210 | snd_usb_create_stream(chip, ctrlif, intf); | |
3211 | } | |
3212 | ||
3213 | break; | |
1da177e4 LT |
3214 | } |
3215 | ||
53ee98fe DM |
3216 | default: |
3217 | snd_printk(KERN_ERR "unknown protocol version 0x%02x\n", protocol); | |
3218 | return -EINVAL; | |
3219 | } | |
28e1b773 | 3220 | |
1da177e4 LT |
3221 | return 0; |
3222 | } | |
3223 | ||
3224 | /* | |
3225 | * create a stream for an endpoint/altsetting without proper descriptors | |
3226 | */ | |
86e07d34 | 3227 | static int create_fixed_stream_quirk(struct snd_usb_audio *chip, |
1da177e4 | 3228 | struct usb_interface *iface, |
86e07d34 | 3229 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 LT |
3230 | { |
3231 | struct audioformat *fp; | |
3232 | struct usb_host_interface *alts; | |
3233 | int stream, err; | |
b4482a4b | 3234 | unsigned *rate_table = NULL; |
1da177e4 | 3235 | |
52978be6 | 3236 | fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL); |
1da177e4 | 3237 | if (! fp) { |
52978be6 | 3238 | snd_printk(KERN_ERR "cannot memdup\n"); |
1da177e4 LT |
3239 | return -ENOMEM; |
3240 | } | |
1da177e4 LT |
3241 | if (fp->nr_rates > 0) { |
3242 | rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL); | |
3243 | if (!rate_table) { | |
3244 | kfree(fp); | |
3245 | return -ENOMEM; | |
3246 | } | |
3247 | memcpy(rate_table, fp->rate_table, sizeof(int) * fp->nr_rates); | |
3248 | fp->rate_table = rate_table; | |
3249 | } | |
3250 | ||
3251 | stream = (fp->endpoint & USB_DIR_IN) | |
3252 | ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
3253 | err = add_audio_endpoint(chip, stream, fp); | |
3254 | if (err < 0) { | |
3255 | kfree(fp); | |
3256 | kfree(rate_table); | |
3257 | return err; | |
3258 | } | |
3259 | if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || | |
3260 | fp->altset_idx >= iface->num_altsetting) { | |
3261 | kfree(fp); | |
3262 | kfree(rate_table); | |
3263 | return -EINVAL; | |
3264 | } | |
3265 | alts = &iface->altsetting[fp->altset_idx]; | |
744b89e5 | 3266 | fp->datainterval = parse_datainterval(chip, alts); |
894dcd78 | 3267 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); |
1da177e4 LT |
3268 | usb_set_interface(chip->dev, fp->iface, 0); |
3269 | init_usb_pitch(chip->dev, fp->iface, alts, fp); | |
3270 | init_usb_sample_rate(chip->dev, fp->iface, alts, fp, fp->rate_max); | |
3271 | return 0; | |
3272 | } | |
3273 | ||
3274 | /* | |
3275 | * create a stream for an interface with proper descriptors | |
3276 | */ | |
86e07d34 | 3277 | static int create_standard_audio_quirk(struct snd_usb_audio *chip, |
d1bda045 | 3278 | struct usb_interface *iface, |
86e07d34 | 3279 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 LT |
3280 | { |
3281 | struct usb_host_interface *alts; | |
3282 | struct usb_interface_descriptor *altsd; | |
3283 | int err; | |
3284 | ||
3285 | alts = &iface->altsetting[0]; | |
3286 | altsd = get_iface_desc(alts); | |
d1bda045 | 3287 | err = parse_audio_endpoints(chip, altsd->bInterfaceNumber); |
1da177e4 LT |
3288 | if (err < 0) { |
3289 | snd_printk(KERN_ERR "cannot setup if %d: error %d\n", | |
3290 | altsd->bInterfaceNumber, err); | |
3291 | return err; | |
3292 | } | |
d1bda045 CL |
3293 | /* reset the current interface */ |
3294 | usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); | |
1da177e4 LT |
3295 | return 0; |
3296 | } | |
3297 | ||
3298 | /* | |
310e0dc0 PLC |
3299 | * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface. |
3300 | * The only way to detect the sample rate is by looking at wMaxPacketSize. | |
1da177e4 | 3301 | */ |
310e0dc0 PLC |
3302 | static int create_uaxx_quirk(struct snd_usb_audio *chip, |
3303 | struct usb_interface *iface, | |
3304 | const struct snd_usb_audio_quirk *quirk) | |
1da177e4 LT |
3305 | { |
3306 | static const struct audioformat ua_format = { | |
3307 | .format = SNDRV_PCM_FORMAT_S24_3LE, | |
3308 | .channels = 2, | |
de48c7bc | 3309 | .fmt_type = UAC_FORMAT_TYPE_I, |
1da177e4 LT |
3310 | .altsetting = 1, |
3311 | .altset_idx = 1, | |
3312 | .rates = SNDRV_PCM_RATE_CONTINUOUS, | |
3313 | }; | |
3314 | struct usb_host_interface *alts; | |
3315 | struct usb_interface_descriptor *altsd; | |
3316 | struct audioformat *fp; | |
3317 | int stream, err; | |
3318 | ||
310e0dc0 PLC |
3319 | /* both PCM and MIDI interfaces have 2 or more altsettings */ |
3320 | if (iface->num_altsetting < 2) | |
1da177e4 LT |
3321 | return -ENXIO; |
3322 | alts = &iface->altsetting[1]; | |
3323 | altsd = get_iface_desc(alts); | |
3324 | ||
59b3db6c PLC |
3325 | if (altsd->bNumEndpoints == 2) { |
3326 | static const struct snd_usb_midi_endpoint_info ua700_ep = { | |
3327 | .out_cables = 0x0003, | |
3328 | .in_cables = 0x0003 | |
3329 | }; | |
3330 | static const struct snd_usb_audio_quirk ua700_quirk = { | |
3331 | .type = QUIRK_MIDI_FIXED_ENDPOINT, | |
3332 | .data = &ua700_ep | |
3333 | }; | |
3334 | static const struct snd_usb_midi_endpoint_info uaxx_ep = { | |
3335 | .out_cables = 0x0001, | |
3336 | .in_cables = 0x0001 | |
3337 | }; | |
3338 | static const struct snd_usb_audio_quirk uaxx_quirk = { | |
3339 | .type = QUIRK_MIDI_FIXED_ENDPOINT, | |
3340 | .data = &uaxx_ep | |
3341 | }; | |
d82af9f9 CL |
3342 | const struct snd_usb_audio_quirk *quirk = |
3343 | chip->usb_id == USB_ID(0x0582, 0x002b) | |
3344 | ? &ua700_quirk : &uaxx_quirk; | |
3345 | return snd_usbmidi_create(chip->card, iface, | |
3346 | &chip->midi_list, quirk); | |
59b3db6c PLC |
3347 | } |
3348 | ||
1da177e4 LT |
3349 | if (altsd->bNumEndpoints != 1) |
3350 | return -ENXIO; | |
3351 | ||
3352 | fp = kmalloc(sizeof(*fp), GFP_KERNEL); | |
3353 | if (!fp) | |
3354 | return -ENOMEM; | |
3355 | memcpy(fp, &ua_format, sizeof(*fp)); | |
3356 | ||
3357 | fp->iface = altsd->bInterfaceNumber; | |
3358 | fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; | |
3359 | fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; | |
744b89e5 | 3360 | fp->datainterval = 0; |
1da177e4 LT |
3361 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); |
3362 | ||
3363 | switch (fp->maxpacksize) { | |
3364 | case 0x120: | |
3365 | fp->rate_max = fp->rate_min = 44100; | |
3366 | break; | |
3367 | case 0x138: | |
3368 | case 0x140: | |
3369 | fp->rate_max = fp->rate_min = 48000; | |
3370 | break; | |
3371 | case 0x258: | |
3372 | case 0x260: | |
3373 | fp->rate_max = fp->rate_min = 96000; | |
3374 | break; | |
3375 | default: | |
3376 | snd_printk(KERN_ERR "unknown sample rate\n"); | |
3377 | kfree(fp); | |
3378 | return -ENXIO; | |
3379 | } | |
3380 | ||
3381 | stream = (fp->endpoint & USB_DIR_IN) | |
3382 | ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
3383 | err = add_audio_endpoint(chip, stream, fp); | |
3384 | if (err < 0) { | |
3385 | kfree(fp); | |
3386 | return err; | |
3387 | } | |
3388 | usb_set_interface(chip->dev, fp->iface, 0); | |
3389 | return 0; | |
3390 | } | |
3391 | ||
86e07d34 | 3392 | static int snd_usb_create_quirk(struct snd_usb_audio *chip, |
1da177e4 | 3393 | struct usb_interface *iface, |
86e07d34 | 3394 | const struct snd_usb_audio_quirk *quirk); |
1da177e4 LT |
3395 | |
3396 | /* | |
3397 | * handle the quirks for the contained interfaces | |
3398 | */ | |
86e07d34 | 3399 | static int create_composite_quirk(struct snd_usb_audio *chip, |
1da177e4 | 3400 | struct usb_interface *iface, |
86e07d34 | 3401 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 LT |
3402 | { |
3403 | int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; | |
3404 | int err; | |
3405 | ||
3406 | for (quirk = quirk->data; quirk->ifnum >= 0; ++quirk) { | |
3407 | iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); | |
3408 | if (!iface) | |
3409 | continue; | |
3410 | if (quirk->ifnum != probed_ifnum && | |
3411 | usb_interface_claimed(iface)) | |
3412 | continue; | |
3413 | err = snd_usb_create_quirk(chip, iface, quirk); | |
3414 | if (err < 0) | |
3415 | return err; | |
3416 | if (quirk->ifnum != probed_ifnum) | |
3417 | usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); | |
3418 | } | |
3419 | return 0; | |
3420 | } | |
3421 | ||
86e07d34 | 3422 | static int ignore_interface_quirk(struct snd_usb_audio *chip, |
854af957 | 3423 | struct usb_interface *iface, |
86e07d34 | 3424 | const struct snd_usb_audio_quirk *quirk) |
854af957 CL |
3425 | { |
3426 | return 0; | |
3427 | } | |
3428 | ||
52a7a583 JG |
3429 | /* |
3430 | * Allow alignment on audio sub-slot (channel samples) rather than | |
3431 | * on audio slots (audio frames) | |
3432 | */ | |
3433 | static int create_align_transfer_quirk(struct snd_usb_audio *chip, | |
3434 | struct usb_interface *iface, | |
3435 | const struct snd_usb_audio_quirk *quirk) | |
3436 | { | |
3437 | chip->txfr_quirk = 1; | |
3438 | return 1; /* Continue with creating streams and mixer */ | |
3439 | } | |
3440 | ||
1da177e4 LT |
3441 | |
3442 | /* | |
3443 | * boot quirks | |
3444 | */ | |
3445 | ||
3446 | #define EXTIGY_FIRMWARE_SIZE_OLD 794 | |
3447 | #define EXTIGY_FIRMWARE_SIZE_NEW 483 | |
3448 | ||
3449 | static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) | |
3450 | { | |
3451 | struct usb_host_config *config = dev->actconfig; | |
3452 | int err; | |
3453 | ||
3454 | if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || | |
3455 | le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) { | |
3456 | snd_printdd("sending Extigy boot sequence...\n"); | |
3457 | /* Send message to force it to reconnect with full interface. */ | |
3458 | err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0), | |
3459 | 0x10, 0x43, 0x0001, 0x000a, NULL, 0, 1000); | |
3460 | if (err < 0) snd_printdd("error sending boot message: %d\n", err); | |
3461 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, | |
3462 | &dev->descriptor, sizeof(dev->descriptor)); | |
3463 | config = dev->actconfig; | |
3464 | if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err); | |
3465 | err = usb_reset_configuration(dev); | |
3466 | if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err); | |
3467 | snd_printdd("extigy_boot: new boot length = %d\n", | |
3468 | le16_to_cpu(get_cfg_desc(config)->wTotalLength)); | |
3469 | return -ENODEV; /* quit this anyway */ | |
3470 | } | |
3471 | return 0; | |
3472 | } | |
3473 | ||
3a2f0856 CL |
3474 | static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) |
3475 | { | |
3a2f0856 CL |
3476 | u8 buf = 1; |
3477 | ||
3478 | snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, | |
3479 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, | |
3480 | 0, 0, &buf, 1, 1000); | |
3481 | if (buf == 0) { | |
3482 | snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, | |
3483 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, | |
3484 | 1, 2000, NULL, 0, 1000); | |
3485 | return -ENODEV; | |
3486 | } | |
3a2f0856 CL |
3487 | return 0; |
3488 | } | |
3489 | ||
e217e30c SR |
3490 | /* |
3491 | * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely | |
3492 | * documented in the device's data sheet. | |
3493 | */ | |
3494 | static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value) | |
3495 | { | |
3496 | u8 buf[4]; | |
3497 | buf[0] = 0x20; | |
3498 | buf[1] = value & 0xff; | |
3499 | buf[2] = (value >> 8) & 0xff; | |
3500 | buf[3] = reg; | |
3501 | return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION, | |
3502 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, | |
3503 | 0, 0, &buf, 4, 1000); | |
3504 | } | |
3505 | ||
3506 | static int snd_usb_cm106_boot_quirk(struct usb_device *dev) | |
3507 | { | |
3508 | /* | |
3509 | * Enable line-out driver mode, set headphone source to front | |
3510 | * channels, enable stereo mic. | |
3511 | */ | |
3512 | return snd_usb_cm106_write_int_reg(dev, 2, 0x8004); | |
3513 | } | |
3514 | ||
92a43793 DA |
3515 | /* |
3516 | * C-Media CM6206 is based on CM106 with two additional | |
3517 | * registers that are not documented in the data sheet. | |
3518 | * Values here are chosen based on sniffing USB traffic | |
3519 | * under Windows. | |
3520 | */ | |
3521 | static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) | |
3522 | { | |
3523 | int err, reg; | |
3524 | int val[] = {0x200c, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000}; | |
3525 | ||
3526 | for (reg = 0; reg < ARRAY_SIZE(val); reg++) { | |
3527 | err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]); | |
3528 | if (err < 0) | |
3529 | return err; | |
3530 | } | |
3531 | ||
3532 | return err; | |
3533 | } | |
e217e30c | 3534 | |
d39e82db SA |
3535 | /* |
3536 | * This call will put the synth in "USB send" mode, i.e it will send MIDI | |
3537 | * messages through USB (this is disabled at startup). The synth will | |
3538 | * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB | |
3539 | * sign on its LCD. Values here are chosen based on sniffing USB traffic | |
3540 | * under Windows. | |
3541 | */ | |
3542 | static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) | |
3543 | { | |
3544 | int err, actual_length; | |
3545 | ||
3546 | /* "midi send" enable */ | |
3547 | static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 }; | |
3548 | ||
3549 | void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL); | |
3550 | if (!buf) | |
3551 | return -ENOMEM; | |
3552 | err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf, | |
3553 | ARRAY_SIZE(seq), &actual_length, 1000); | |
3554 | kfree(buf); | |
3555 | if (err < 0) | |
3556 | return err; | |
3557 | ||
3558 | return 0; | |
3559 | } | |
3560 | ||
e311334e TLM |
3561 | /* |
3562 | * Setup quirks | |
3563 | */ | |
3564 | #define AUDIOPHILE_SET 0x01 /* if set, parse device_setup */ | |
3565 | #define AUDIOPHILE_SET_DTS 0x02 /* if set, enable DTS Digital Output */ | |
3566 | #define AUDIOPHILE_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */ | |
3567 | #define AUDIOPHILE_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */ | |
3568 | #define AUDIOPHILE_SET_DI 0x10 /* if set, enable Digital Input */ | |
3569 | #define AUDIOPHILE_SET_MASK 0x1F /* bit mask for setup value */ | |
3570 | #define AUDIOPHILE_SET_24B_48K_DI 0x19 /* value for 24bits+48KHz+Digital Input */ | |
3571 | #define AUDIOPHILE_SET_24B_48K_NOTDI 0x09 /* value for 24bits+48KHz+No Digital Input */ | |
3572 | #define AUDIOPHILE_SET_16B_48K_DI 0x11 /* value for 16bits+48KHz+Digital Input */ | |
3573 | #define AUDIOPHILE_SET_16B_48K_NOTDI 0x01 /* value for 16bits+48KHz+No Digital Input */ | |
3574 | ||
3575 | static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, | |
3576 | int iface, int altno) | |
3577 | { | |
f8c78b82 TLM |
3578 | /* Reset ALL ifaces to 0 altsetting. |
3579 | * Call it for every possible altsetting of every interface. | |
3580 | */ | |
3581 | usb_set_interface(chip->dev, iface, 0); | |
3582 | ||
e311334e TLM |
3583 | if (device_setup[chip->index] & AUDIOPHILE_SET) { |
3584 | if ((device_setup[chip->index] & AUDIOPHILE_SET_DTS) | |
3585 | && altno != 6) | |
3586 | return 1; /* skip this altsetting */ | |
3587 | if ((device_setup[chip->index] & AUDIOPHILE_SET_96K) | |
3588 | && altno != 1) | |
3589 | return 1; /* skip this altsetting */ | |
3590 | if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) == | |
3591 | AUDIOPHILE_SET_24B_48K_DI && altno != 2) | |
3592 | return 1; /* skip this altsetting */ | |
3593 | if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) == | |
3594 | AUDIOPHILE_SET_24B_48K_NOTDI && altno != 3) | |
3595 | return 1; /* skip this altsetting */ | |
3596 | if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) == | |
3597 | AUDIOPHILE_SET_16B_48K_DI && altno != 4) | |
3598 | return 1; /* skip this altsetting */ | |
3599 | if ((device_setup[chip->index] & AUDIOPHILE_SET_MASK) == | |
3600 | AUDIOPHILE_SET_16B_48K_NOTDI && altno != 5) | |
3601 | return 1; /* skip this altsetting */ | |
3602 | } | |
3603 | return 0; /* keep this altsetting */ | |
3604 | } | |
1da177e4 | 3605 | |
d82af9f9 CL |
3606 | static int create_any_midi_quirk(struct snd_usb_audio *chip, |
3607 | struct usb_interface *intf, | |
3608 | const struct snd_usb_audio_quirk *quirk) | |
3609 | { | |
3610 | return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk); | |
3611 | } | |
3612 | ||
1da177e4 LT |
3613 | /* |
3614 | * audio-interface quirks | |
3615 | * | |
3616 | * returns zero if no standard audio/MIDI parsing is needed. | |
3617 | * returns a postive value if standard audio/midi interfaces are parsed | |
3618 | * after this. | |
3619 | * returns a negative value at error. | |
3620 | */ | |
86e07d34 | 3621 | static int snd_usb_create_quirk(struct snd_usb_audio *chip, |
1da177e4 | 3622 | struct usb_interface *iface, |
86e07d34 | 3623 | const struct snd_usb_audio_quirk *quirk) |
1da177e4 | 3624 | { |
86e07d34 TI |
3625 | typedef int (*quirk_func_t)(struct snd_usb_audio *, struct usb_interface *, |
3626 | const struct snd_usb_audio_quirk *); | |
854af957 CL |
3627 | static const quirk_func_t quirk_funcs[] = { |
3628 | [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk, | |
3629 | [QUIRK_COMPOSITE] = create_composite_quirk, | |
d82af9f9 CL |
3630 | [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk, |
3631 | [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk, | |
3632 | [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk, | |
3633 | [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk, | |
3634 | [QUIRK_MIDI_NOVATION] = create_any_midi_quirk, | |
3635 | [QUIRK_MIDI_FASTLANE] = create_any_midi_quirk, | |
3636 | [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk, | |
3637 | [QUIRK_MIDI_CME] = create_any_midi_quirk, | |
d1bda045 | 3638 | [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, |
854af957 | 3639 | [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, |
52a7a583 JG |
3640 | [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk, |
3641 | [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk | |
854af957 CL |
3642 | }; |
3643 | ||
3644 | if (quirk->type < QUIRK_TYPE_COUNT) { | |
3645 | return quirk_funcs[quirk->type](chip, iface, quirk); | |
3646 | } else { | |
1da177e4 LT |
3647 | snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type); |
3648 | return -ENXIO; | |
3649 | } | |
3650 | } | |
3651 | ||
3652 | ||
3653 | /* | |
3654 | * common proc files to show the usb device info | |
3655 | */ | |
86e07d34 | 3656 | static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
1da177e4 | 3657 | { |
86e07d34 | 3658 | struct snd_usb_audio *chip = entry->private_data; |
07f51a72 | 3659 | if (!chip->shutdown) |
1da177e4 LT |
3660 | snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); |
3661 | } | |
3662 | ||
86e07d34 | 3663 | static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
1da177e4 | 3664 | { |
86e07d34 | 3665 | struct snd_usb_audio *chip = entry->private_data; |
07f51a72 | 3666 | if (!chip->shutdown) |
1da177e4 | 3667 | snd_iprintf(buffer, "%04x:%04x\n", |
27d10f56 CL |
3668 | USB_ID_VENDOR(chip->usb_id), |
3669 | USB_ID_PRODUCT(chip->usb_id)); | |
1da177e4 LT |
3670 | } |
3671 | ||
86e07d34 | 3672 | static void snd_usb_audio_create_proc(struct snd_usb_audio *chip) |
1da177e4 | 3673 | { |
86e07d34 | 3674 | struct snd_info_entry *entry; |
07f51a72 | 3675 | if (!snd_card_proc_new(chip->card, "usbbus", &entry)) |
bf850204 | 3676 | snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read); |
07f51a72 | 3677 | if (!snd_card_proc_new(chip->card, "usbid", &entry)) |
bf850204 | 3678 | snd_info_set_text_ops(entry, chip, proc_audio_usbid_read); |
1da177e4 LT |
3679 | } |
3680 | ||
3681 | /* | |
3682 | * free the chip instance | |
3683 | * | |
3684 | * here we have to do not much, since pcm and controls are already freed | |
3685 | * | |
3686 | */ | |
3687 | ||
86e07d34 | 3688 | static int snd_usb_audio_free(struct snd_usb_audio *chip) |
1da177e4 LT |
3689 | { |
3690 | kfree(chip); | |
3691 | return 0; | |
3692 | } | |
3693 | ||
86e07d34 | 3694 | static int snd_usb_audio_dev_free(struct snd_device *device) |
1da177e4 | 3695 | { |
86e07d34 | 3696 | struct snd_usb_audio *chip = device->device_data; |
1da177e4 LT |
3697 | return snd_usb_audio_free(chip); |
3698 | } | |
3699 | ||
3700 | ||
3701 | /* | |
3702 | * create a chip instance and set its names. | |
3703 | */ | |
3704 | static int snd_usb_audio_create(struct usb_device *dev, int idx, | |
86e07d34 TI |
3705 | const struct snd_usb_audio_quirk *quirk, |
3706 | struct snd_usb_audio **rchip) | |
1da177e4 | 3707 | { |
86e07d34 TI |
3708 | struct snd_card *card; |
3709 | struct snd_usb_audio *chip; | |
1da177e4 LT |
3710 | int err, len; |
3711 | char component[14]; | |
86e07d34 | 3712 | static struct snd_device_ops ops = { |
1da177e4 LT |
3713 | .dev_free = snd_usb_audio_dev_free, |
3714 | }; | |
3715 | ||
3716 | *rchip = NULL; | |
3717 | ||
076639f6 CL |
3718 | if (snd_usb_get_speed(dev) != USB_SPEED_LOW && |
3719 | snd_usb_get_speed(dev) != USB_SPEED_FULL && | |
1da177e4 LT |
3720 | snd_usb_get_speed(dev) != USB_SPEED_HIGH) { |
3721 | snd_printk(KERN_ERR "unknown device speed %d\n", snd_usb_get_speed(dev)); | |
3722 | return -ENXIO; | |
3723 | } | |
3724 | ||
bd7dd77c TI |
3725 | err = snd_card_create(index[idx], id[idx], THIS_MODULE, 0, &card); |
3726 | if (err < 0) { | |
1da177e4 | 3727 | snd_printk(KERN_ERR "cannot create card instance %d\n", idx); |
bd7dd77c | 3728 | return err; |
1da177e4 LT |
3729 | } |
3730 | ||
561b220a | 3731 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
1da177e4 LT |
3732 | if (! chip) { |
3733 | snd_card_free(card); | |
3734 | return -ENOMEM; | |
3735 | } | |
3736 | ||
3737 | chip->index = idx; | |
3738 | chip->dev = dev; | |
3739 | chip->card = card; | |
27d10f56 CL |
3740 | chip->usb_id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), |
3741 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 LT |
3742 | INIT_LIST_HEAD(&chip->pcm_list); |
3743 | INIT_LIST_HEAD(&chip->midi_list); | |
84957a8a | 3744 | INIT_LIST_HEAD(&chip->mixer_list); |
1da177e4 LT |
3745 | |
3746 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { | |
3747 | snd_usb_audio_free(chip); | |
3748 | snd_card_free(card); | |
3749 | return err; | |
3750 | } | |
3751 | ||
3752 | strcpy(card->driver, "USB-Audio"); | |
3753 | sprintf(component, "USB%04x:%04x", | |
27d10f56 | 3754 | USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id)); |
1da177e4 LT |
3755 | snd_component_add(card, component); |
3756 | ||
3757 | /* retrieve the device string as shortname */ | |
3758 | if (quirk && quirk->product_name) { | |
3759 | strlcpy(card->shortname, quirk->product_name, sizeof(card->shortname)); | |
3760 | } else { | |
3761 | if (!dev->descriptor.iProduct || | |
3762 | usb_string(dev, dev->descriptor.iProduct, | |
3763 | card->shortname, sizeof(card->shortname)) <= 0) { | |
3764 | /* no name available from anywhere, so use ID */ | |
3765 | sprintf(card->shortname, "USB Device %#04x:%#04x", | |
27d10f56 CL |
3766 | USB_ID_VENDOR(chip->usb_id), |
3767 | USB_ID_PRODUCT(chip->usb_id)); | |
1da177e4 LT |
3768 | } |
3769 | } | |
3770 | ||
3771 | /* retrieve the vendor and device strings as longname */ | |
3772 | if (quirk && quirk->vendor_name) { | |
3773 | len = strlcpy(card->longname, quirk->vendor_name, sizeof(card->longname)); | |
3774 | } else { | |
3775 | if (dev->descriptor.iManufacturer) | |
3776 | len = usb_string(dev, dev->descriptor.iManufacturer, | |
3777 | card->longname, sizeof(card->longname)); | |
3778 | else | |
3779 | len = 0; | |
3780 | /* we don't really care if there isn't any vendor string */ | |
3781 | } | |
3782 | if (len > 0) | |
3783 | strlcat(card->longname, " ", sizeof(card->longname)); | |
3784 | ||
3785 | strlcat(card->longname, card->shortname, sizeof(card->longname)); | |
3786 | ||
3787 | len = strlcat(card->longname, " at ", sizeof(card->longname)); | |
3788 | ||
3789 | if (len < sizeof(card->longname)) | |
3790 | usb_make_path(dev, card->longname + len, sizeof(card->longname) - len); | |
3791 | ||
3792 | strlcat(card->longname, | |
076639f6 CL |
3793 | snd_usb_get_speed(dev) == USB_SPEED_LOW ? ", low speed" : |
3794 | snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" : | |
3795 | ", high speed", | |
1da177e4 LT |
3796 | sizeof(card->longname)); |
3797 | ||
3798 | snd_usb_audio_create_proc(chip); | |
3799 | ||
1da177e4 LT |
3800 | *rchip = chip; |
3801 | return 0; | |
3802 | } | |
3803 | ||
3804 | ||
3805 | /* | |
3806 | * probe the active usb device | |
3807 | * | |
3808 | * note that this can be called multiple times per a device, when it | |
3809 | * includes multiple audio control interfaces. | |
3810 | * | |
3811 | * thus we check the usb device pointer and creates the card instance | |
3812 | * only at the first time. the successive calls of this function will | |
3813 | * append the pcm interface to the corresponding card. | |
3814 | */ | |
3815 | static void *snd_usb_audio_probe(struct usb_device *dev, | |
3816 | struct usb_interface *intf, | |
3817 | const struct usb_device_id *usb_id) | |
3818 | { | |
86e07d34 | 3819 | const struct snd_usb_audio_quirk *quirk = (const struct snd_usb_audio_quirk *)usb_id->driver_info; |
1da177e4 | 3820 | int i, err; |
86e07d34 | 3821 | struct snd_usb_audio *chip; |
1da177e4 LT |
3822 | struct usb_host_interface *alts; |
3823 | int ifnum; | |
27d10f56 | 3824 | u32 id; |
1da177e4 LT |
3825 | |
3826 | alts = &intf->altsetting[0]; | |
3827 | ifnum = get_iface_desc(alts)->bInterfaceNumber; | |
27d10f56 CL |
3828 | id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), |
3829 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 LT |
3830 | if (quirk && quirk->ifnum >= 0 && ifnum != quirk->ifnum) |
3831 | goto __err_val; | |
3832 | ||
3833 | /* SB Extigy needs special boot-up sequence */ | |
3834 | /* if more models come, this will go to the quirk list. */ | |
27d10f56 | 3835 | if (id == USB_ID(0x041e, 0x3000)) { |
1da177e4 LT |
3836 | if (snd_usb_extigy_boot_quirk(dev, intf) < 0) |
3837 | goto __err_val; | |
1da177e4 | 3838 | } |
3a2f0856 CL |
3839 | /* SB Audigy 2 NX needs its own boot-up magic, too */ |
3840 | if (id == USB_ID(0x041e, 0x3020)) { | |
3841 | if (snd_usb_audigy2nx_boot_quirk(dev) < 0) | |
3842 | goto __err_val; | |
3843 | } | |
1da177e4 | 3844 | |
e217e30c SR |
3845 | /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */ |
3846 | if (id == USB_ID(0x10f5, 0x0200)) { | |
3847 | if (snd_usb_cm106_boot_quirk(dev) < 0) | |
3848 | goto __err_val; | |
3849 | } | |
3850 | ||
92a43793 DA |
3851 | /* C-Media CM6206 / CM106-Like Sound Device */ |
3852 | if (id == USB_ID(0x0d8c, 0x0102)) { | |
3853 | if (snd_usb_cm6206_boot_quirk(dev) < 0) | |
3854 | goto __err_val; | |
3855 | } | |
3856 | ||
d39e82db SA |
3857 | /* Access Music VirusTI Desktop */ |
3858 | if (id == USB_ID(0x133e, 0x0815)) { | |
3859 | if (snd_usb_accessmusic_boot_quirk(dev) < 0) | |
3860 | goto __err_val; | |
3861 | } | |
3862 | ||
1da177e4 LT |
3863 | /* |
3864 | * found a config. now register to ALSA | |
3865 | */ | |
3866 | ||
3867 | /* check whether it's already registered */ | |
3868 | chip = NULL; | |
12aa7579 | 3869 | mutex_lock(®ister_mutex); |
1da177e4 LT |
3870 | for (i = 0; i < SNDRV_CARDS; i++) { |
3871 | if (usb_chip[i] && usb_chip[i]->dev == dev) { | |
3872 | if (usb_chip[i]->shutdown) { | |
3873 | snd_printk(KERN_ERR "USB device is in the shutdown state, cannot create a card instance\n"); | |
3874 | goto __error; | |
3875 | } | |
3876 | chip = usb_chip[i]; | |
3877 | break; | |
3878 | } | |
3879 | } | |
3880 | if (! chip) { | |
3881 | /* it's a fresh one. | |
3882 | * now look for an empty slot and create a new card instance | |
3883 | */ | |
1da177e4 LT |
3884 | for (i = 0; i < SNDRV_CARDS; i++) |
3885 | if (enable[i] && ! usb_chip[i] && | |
27d10f56 CL |
3886 | (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) && |
3887 | (pid[i] == -1 || pid[i] == USB_ID_PRODUCT(id))) { | |
1da177e4 LT |
3888 | if (snd_usb_audio_create(dev, i, quirk, &chip) < 0) { |
3889 | goto __error; | |
3890 | } | |
1dcd3ec4 | 3891 | snd_card_set_dev(chip->card, &intf->dev); |
1da177e4 LT |
3892 | break; |
3893 | } | |
07f51a72 PM |
3894 | if (!chip) { |
3895 | printk(KERN_ERR "no available usb audio device\n"); | |
1da177e4 LT |
3896 | goto __error; |
3897 | } | |
3898 | } | |
3899 | ||
52a7a583 | 3900 | chip->txfr_quirk = 0; |
1da177e4 LT |
3901 | err = 1; /* continue */ |
3902 | if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) { | |
3903 | /* need some special handlings */ | |
3904 | if ((err = snd_usb_create_quirk(chip, intf, quirk)) < 0) | |
3905 | goto __error; | |
3906 | } | |
3907 | ||
3908 | if (err > 0) { | |
3909 | /* create normal USB audio interfaces */ | |
3910 | if (snd_usb_create_streams(chip, ifnum) < 0 || | |
7a9b8063 | 3911 | snd_usb_create_mixer(chip, ifnum, ignore_ctl_error) < 0) { |
1da177e4 LT |
3912 | goto __error; |
3913 | } | |
3914 | } | |
3915 | ||
3916 | /* we are allowed to call snd_card_register() many times */ | |
3917 | if (snd_card_register(chip->card) < 0) { | |
3918 | goto __error; | |
3919 | } | |
3920 | ||
3921 | usb_chip[chip->index] = chip; | |
3922 | chip->num_interfaces++; | |
12aa7579 | 3923 | mutex_unlock(®ister_mutex); |
1da177e4 LT |
3924 | return chip; |
3925 | ||
3926 | __error: | |
3927 | if (chip && !chip->num_interfaces) | |
3928 | snd_card_free(chip->card); | |
12aa7579 | 3929 | mutex_unlock(®ister_mutex); |
1da177e4 LT |
3930 | __err_val: |
3931 | return NULL; | |
3932 | } | |
3933 | ||
3934 | /* | |
3935 | * we need to take care of counter, since disconnection can be called also | |
3936 | * many times as well as usb_audio_probe(). | |
3937 | */ | |
3938 | static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr) | |
3939 | { | |
86e07d34 TI |
3940 | struct snd_usb_audio *chip; |
3941 | struct snd_card *card; | |
1da177e4 LT |
3942 | struct list_head *p; |
3943 | ||
3944 | if (ptr == (void *)-1L) | |
3945 | return; | |
3946 | ||
3947 | chip = ptr; | |
3948 | card = chip->card; | |
12aa7579 | 3949 | mutex_lock(®ister_mutex); |
1da177e4 LT |
3950 | chip->shutdown = 1; |
3951 | chip->num_interfaces--; | |
3952 | if (chip->num_interfaces <= 0) { | |
3953 | snd_card_disconnect(card); | |
3954 | /* release the pcm resources */ | |
3955 | list_for_each(p, &chip->pcm_list) { | |
ee733397 | 3956 | snd_usb_stream_disconnect(p); |
1da177e4 LT |
3957 | } |
3958 | /* release the midi resources */ | |
3959 | list_for_each(p, &chip->midi_list) { | |
ee733397 | 3960 | snd_usbmidi_disconnect(p); |
1da177e4 | 3961 | } |
84957a8a CL |
3962 | /* release mixer resources */ |
3963 | list_for_each(p, &chip->mixer_list) { | |
3964 | snd_usb_mixer_disconnect(p); | |
3965 | } | |
9eb70e68 | 3966 | usb_chip[chip->index] = NULL; |
12aa7579 | 3967 | mutex_unlock(®ister_mutex); |
c461482c | 3968 | snd_card_free_when_closed(card); |
1da177e4 | 3969 | } else { |
12aa7579 | 3970 | mutex_unlock(®ister_mutex); |
1da177e4 LT |
3971 | } |
3972 | } | |
3973 | ||
3974 | /* | |
3975 | * new 2.5 USB kernel API | |
3976 | */ | |
3977 | static int usb_audio_probe(struct usb_interface *intf, | |
3978 | const struct usb_device_id *id) | |
3979 | { | |
3980 | void *chip; | |
3981 | chip = snd_usb_audio_probe(interface_to_usbdev(intf), intf, id); | |
3982 | if (chip) { | |
f4e9749f | 3983 | usb_set_intfdata(intf, chip); |
1da177e4 LT |
3984 | return 0; |
3985 | } else | |
3986 | return -EIO; | |
3987 | } | |
3988 | ||
3989 | static void usb_audio_disconnect(struct usb_interface *intf) | |
3990 | { | |
3991 | snd_usb_audio_disconnect(interface_to_usbdev(intf), | |
f4e9749f | 3992 | usb_get_intfdata(intf)); |
1da177e4 LT |
3993 | } |
3994 | ||
93521d27 | 3995 | #ifdef CONFIG_PM |
f85bf29c ON |
3996 | static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) |
3997 | { | |
f4e9749f | 3998 | struct snd_usb_audio *chip = usb_get_intfdata(intf); |
f85bf29c ON |
3999 | struct list_head *p; |
4000 | struct snd_usb_stream *as; | |
4001 | ||
4002 | if (chip == (void *)-1L) | |
4003 | return 0; | |
4004 | ||
4005 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); | |
4006 | if (!chip->num_suspended_intf++) { | |
4007 | list_for_each(p, &chip->pcm_list) { | |
4008 | as = list_entry(p, struct snd_usb_stream, list); | |
4009 | snd_pcm_suspend_all(as->pcm); | |
4010 | } | |
4011 | } | |
4012 | ||
4013 | return 0; | |
4014 | } | |
4015 | ||
4016 | static int usb_audio_resume(struct usb_interface *intf) | |
4017 | { | |
f4e9749f | 4018 | struct snd_usb_audio *chip = usb_get_intfdata(intf); |
f85bf29c ON |
4019 | |
4020 | if (chip == (void *)-1L) | |
4021 | return 0; | |
4022 | if (--chip->num_suspended_intf) | |
4023 | return 0; | |
4024 | /* | |
4025 | * ALSA leaves material resumption to user space | |
4026 | * we just notify | |
4027 | */ | |
4028 | ||
4029 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); | |
4030 | ||
4031 | return 0; | |
4032 | } | |
93521d27 | 4033 | #endif /* CONFIG_PM */ |
1da177e4 LT |
4034 | |
4035 | static int __init snd_usb_audio_init(void) | |
4036 | { | |
f3990e61 | 4037 | if (nrpacks < 1 || nrpacks > MAX_PACKS) { |
1da177e4 LT |
4038 | printk(KERN_WARNING "invalid nrpacks value.\n"); |
4039 | return -EINVAL; | |
4040 | } | |
cf78bbc4 | 4041 | return usb_register(&usb_audio_driver); |
1da177e4 LT |
4042 | } |
4043 | ||
4044 | ||
4045 | static void __exit snd_usb_audio_cleanup(void) | |
4046 | { | |
4047 | usb_deregister(&usb_audio_driver); | |
4048 | } | |
4049 | ||
4050 | module_init(snd_usb_audio_init); | |
4051 | module_exit(snd_usb_audio_cleanup); |