Commit | Line | Data |
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e5779998 DM |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2 of the License, or | |
5 | * (at your option) any later version. | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program; if not, write to the Free Software | |
14 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
15 | * | |
16 | */ | |
17 | ||
18 | #include <linux/init.h> | |
36db0456 | 19 | #include <linux/slab.h> |
e5779998 DM |
20 | #include <linux/usb.h> |
21 | #include <linux/usb/audio.h> | |
7e847894 | 22 | #include <linux/usb/audio-v2.h> |
9a2fe9b8 | 23 | #include <linux/usb/audio-v3.h> |
e5779998 DM |
24 | |
25 | #include <sound/core.h> | |
26 | #include <sound/pcm.h> | |
27 | ||
28 | #include "usbaudio.h" | |
29 | #include "card.h" | |
30 | #include "quirks.h" | |
31 | #include "helper.h" | |
32 | #include "debug.h" | |
79f920fb | 33 | #include "clock.h" |
ee95cb61 | 34 | #include "format.h" |
e5779998 DM |
35 | |
36 | /* | |
37 | * parse the audio format type I descriptor | |
38 | * and returns the corresponding pcm format | |
39 | * | |
40 | * @dev: usb device | |
41 | * @fp: audioformat record | |
42 | * @format: the format tag (wFormatTag) | |
9a2fe9b8 | 43 | * @fmt: the format type descriptor (v1/v2) or AudioStreaming descriptor (v3) |
e5779998 | 44 | */ |
29088fef | 45 | static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, |
e5779998 | 46 | struct audioformat *fp, |
9a2fe9b8 | 47 | u64 format, void *_fmt) |
e5779998 | 48 | { |
e5779998 | 49 | int sample_width, sample_bytes; |
717bfb5f | 50 | u64 pcm_formats = 0; |
e5779998 | 51 | |
8f898e92 | 52 | switch (fp->protocol) { |
a2acad82 CL |
53 | case UAC_VERSION_1: |
54 | default: { | |
e5779998 DM |
55 | struct uac_format_type_i_discrete_descriptor *fmt = _fmt; |
56 | sample_width = fmt->bBitResolution; | |
57 | sample_bytes = fmt->bSubframeSize; | |
b44d419b | 58 | format = 1ULL << format; |
e5779998 DM |
59 | break; |
60 | } | |
61 | ||
62 | case UAC_VERSION_2: { | |
63 | struct uac_format_type_i_ext_descriptor *fmt = _fmt; | |
64 | sample_width = fmt->bBitResolution; | |
65 | sample_bytes = fmt->bSubslotSize; | |
717bfb5f | 66 | |
3a572d94 | 67 | if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) { |
717bfb5f | 68 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; |
3a572d94 JL |
69 | /* flag potentially raw DSD capable altsettings */ |
70 | fp->dsd_raw = true; | |
71 | } | |
717bfb5f | 72 | |
29088fef | 73 | format <<= 1; |
e5779998 DM |
74 | break; |
75 | } | |
9a2fe9b8 RB |
76 | case UAC_VERSION_3: { |
77 | struct uac3_as_header_descriptor *as = _fmt; | |
78 | ||
79 | sample_width = as->bBitResolution; | |
80 | sample_bytes = as->bSubslotSize; | |
81 | ||
82 | if (format & UAC3_FORMAT_TYPE_I_RAW_DATA) | |
83 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; | |
84 | ||
85 | format <<= 1; | |
86 | break; | |
87 | } | |
e5779998 DM |
88 | } |
89 | ||
717bfb5f DM |
90 | if ((pcm_formats == 0) && |
91 | (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) { | |
29088fef | 92 | /* some devices don't define this correctly... */ |
0ba41d91 TI |
93 | usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n", |
94 | fp->iface, fp->altsetting); | |
29088fef CL |
95 | format = 1 << UAC_FORMAT_TYPE_I_PCM; |
96 | } | |
97 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) { | |
6d1f2f60 TH |
98 | if (((chip->usb_id == USB_ID(0x0582, 0x0016)) || |
99 | /* Edirol SD-90 */ | |
100 | (chip->usb_id == USB_ID(0x0582, 0x000c))) && | |
101 | /* Roland SC-D70 */ | |
061b869e CL |
102 | sample_width == 24 && sample_bytes == 2) |
103 | sample_bytes = 3; | |
104 | else if (sample_width > sample_bytes * 8) { | |
0ba41d91 TI |
105 | usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n", |
106 | fp->iface, fp->altsetting, | |
107 | sample_width, sample_bytes); | |
e5779998 DM |
108 | } |
109 | /* check the format byte size */ | |
110 | switch (sample_bytes) { | |
111 | case 1: | |
29088fef | 112 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
e5779998 DM |
113 | break; |
114 | case 2: | |
115 | if (snd_usb_is_big_endian_format(chip, fp)) | |
29088fef | 116 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_BE; /* grrr, big endian!! */ |
e5779998 | 117 | else |
29088fef | 118 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_LE; |
e5779998 DM |
119 | break; |
120 | case 3: | |
121 | if (snd_usb_is_big_endian_format(chip, fp)) | |
29088fef | 122 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3BE; /* grrr, big endian!! */ |
e5779998 | 123 | else |
29088fef | 124 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3LE; |
e5779998 DM |
125 | break; |
126 | case 4: | |
29088fef | 127 | pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE; |
e5779998 DM |
128 | break; |
129 | default: | |
0ba41d91 TI |
130 | usb_audio_info(chip, |
131 | "%u:%d : unsupported sample bitwidth %d in %d bytes\n", | |
132 | fp->iface, fp->altsetting, | |
133 | sample_width, sample_bytes); | |
e5779998 DM |
134 | break; |
135 | } | |
29088fef CL |
136 | } |
137 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM8)) { | |
e5779998 DM |
138 | /* Dallas DS4201 workaround: it advertises U8 format, but really |
139 | supports S8. */ | |
140 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) | |
29088fef CL |
141 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
142 | else | |
143 | pcm_formats |= SNDRV_PCM_FMTBIT_U8; | |
144 | } | |
145 | if (format & (1 << UAC_FORMAT_TYPE_I_IEEE_FLOAT)) { | |
146 | pcm_formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; | |
147 | } | |
148 | if (format & (1 << UAC_FORMAT_TYPE_I_ALAW)) { | |
149 | pcm_formats |= SNDRV_PCM_FMTBIT_A_LAW; | |
150 | } | |
151 | if (format & (1 << UAC_FORMAT_TYPE_I_MULAW)) { | |
152 | pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW; | |
153 | } | |
154 | if (format & ~0x3f) { | |
0ba41d91 | 155 | usb_audio_info(chip, |
9a2fe9b8 | 156 | "%u:%d : unsupported format bits %#llx\n", |
0ba41d91 | 157 | fp->iface, fp->altsetting, format); |
e5779998 | 158 | } |
126825e7 DM |
159 | |
160 | pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes); | |
161 | ||
29088fef | 162 | return pcm_formats; |
e5779998 DM |
163 | } |
164 | ||
165 | ||
166 | /* | |
167 | * parse the format descriptor and stores the possible sample rates | |
168 | * on the audioformat table (audio class v1). | |
169 | * | |
170 | * @dev: usb device | |
171 | * @fp: audioformat record | |
172 | * @fmt: the format descriptor | |
173 | * @offset: the start offset of descriptor pointing the rate type | |
174 | * (7 for type I and II, 8 for type II) | |
175 | */ | |
176 | static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp, | |
177 | unsigned char *fmt, int offset) | |
178 | { | |
179 | int nr_rates = fmt[offset]; | |
180 | ||
181 | if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { | |
0ba41d91 TI |
182 | usb_audio_err(chip, |
183 | "%u:%d : invalid UAC_FORMAT_TYPE desc\n", | |
184 | fp->iface, fp->altsetting); | |
8ad10dc6 | 185 | return -EINVAL; |
e5779998 DM |
186 | } |
187 | ||
188 | if (nr_rates) { | |
189 | /* | |
190 | * build the rate table and bitmap flags | |
191 | */ | |
192 | int r, idx; | |
193 | ||
6da2ec56 KC |
194 | fp->rate_table = kmalloc_array(nr_rates, sizeof(int), |
195 | GFP_KERNEL); | |
1bc00f32 | 196 | if (fp->rate_table == NULL) |
8ad10dc6 | 197 | return -ENOMEM; |
e5779998 DM |
198 | |
199 | fp->nr_rates = 0; | |
200 | fp->rate_min = fp->rate_max = 0; | |
201 | for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { | |
202 | unsigned int rate = combine_triple(&fmt[idx]); | |
203 | if (!rate) | |
204 | continue; | |
205 | /* C-Media CM6501 mislabels its 96 kHz altsetting */ | |
8129e79e | 206 | /* Terratec Aureon 7.1 USB C-Media 6206, too */ |
e5779998 DM |
207 | if (rate == 48000 && nr_rates == 1 && |
208 | (chip->usb_id == USB_ID(0x0d8c, 0x0201) || | |
8129e79e WB |
209 | chip->usb_id == USB_ID(0x0d8c, 0x0102) || |
210 | chip->usb_id == USB_ID(0x0ccd, 0x00b1)) && | |
e5779998 DM |
211 | fp->altsetting == 5 && fp->maxpacksize == 392) |
212 | rate = 96000; | |
8c4b79cf PH |
213 | /* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */ |
214 | if (rate == 16000 && | |
215 | (chip->usb_id == USB_ID(0x041e, 0x4064) || | |
216 | chip->usb_id == USB_ID(0x041e, 0x4068))) | |
e5779998 DM |
217 | rate = 8000; |
218 | ||
219 | fp->rate_table[fp->nr_rates] = rate; | |
220 | if (!fp->rate_min || rate < fp->rate_min) | |
221 | fp->rate_min = rate; | |
222 | if (!fp->rate_max || rate > fp->rate_max) | |
223 | fp->rate_max = rate; | |
224 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); | |
225 | fp->nr_rates++; | |
226 | } | |
227 | if (!fp->nr_rates) { | |
228 | hwc_debug("All rates were zero. Skipping format!\n"); | |
8ad10dc6 | 229 | return -EINVAL; |
e5779998 DM |
230 | } |
231 | } else { | |
232 | /* continuous rates */ | |
233 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
234 | fp->rate_min = combine_triple(&fmt[offset + 1]); | |
235 | fp->rate_max = combine_triple(&fmt[offset + 4]); | |
236 | } | |
237 | return 0; | |
238 | } | |
239 | ||
67c10366 DM |
240 | /* |
241 | * Helper function to walk the array of sample rate triplets reported by | |
242 | * the device. The problem is that we need to parse whole array first to | |
243 | * get to know how many sample rates we have to expect. | |
244 | * Then fp->rate_table can be allocated and filled. | |
245 | */ | |
0ba41d91 TI |
246 | static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip, |
247 | struct audioformat *fp, int nr_triplets, | |
67c10366 DM |
248 | const unsigned char *data) |
249 | { | |
250 | int i, nr_rates = 0; | |
251 | ||
252 | fp->rates = fp->rate_min = fp->rate_max = 0; | |
253 | ||
254 | for (i = 0; i < nr_triplets; i++) { | |
255 | int min = combine_quad(&data[2 + 12 * i]); | |
256 | int max = combine_quad(&data[6 + 12 * i]); | |
257 | int res = combine_quad(&data[10 + 12 * i]); | |
4fa0e81b | 258 | unsigned int rate; |
67c10366 DM |
259 | |
260 | if ((max < 0) || (min < 0) || (res < 0) || (max < min)) | |
261 | continue; | |
262 | ||
263 | /* | |
264 | * for ranges with res == 1, we announce a continuous sample | |
265 | * rate range, and this function should return 0 for no further | |
266 | * parsing. | |
267 | */ | |
268 | if (res == 1) { | |
269 | fp->rate_min = min; | |
270 | fp->rate_max = max; | |
271 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
272 | return 0; | |
273 | } | |
274 | ||
275 | for (rate = min; rate <= max; rate += res) { | |
276 | if (fp->rate_table) | |
277 | fp->rate_table[nr_rates] = rate; | |
278 | if (!fp->rate_min || rate < fp->rate_min) | |
279 | fp->rate_min = rate; | |
280 | if (!fp->rate_max || rate > fp->rate_max) | |
281 | fp->rate_max = rate; | |
282 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); | |
283 | ||
284 | nr_rates++; | |
8866f405 | 285 | if (nr_rates >= MAX_NR_RATES) { |
0ba41d91 | 286 | usb_audio_err(chip, "invalid uac2 rates\n"); |
4fa0e81b XW |
287 | break; |
288 | } | |
67c10366 DM |
289 | |
290 | /* avoid endless loop */ | |
291 | if (res == 0) | |
292 | break; | |
293 | } | |
294 | } | |
295 | ||
296 | return nr_rates; | |
297 | } | |
298 | ||
e5779998 DM |
299 | /* |
300 | * parse the format descriptor and stores the possible sample rates | |
9a2fe9b8 | 301 | * on the audioformat table (audio class v2 and v3). |
e5779998 | 302 | */ |
9a2fe9b8 | 303 | static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip, |
3d8d4dcf | 304 | struct audioformat *fp) |
e5779998 DM |
305 | { |
306 | struct usb_device *dev = chip->dev; | |
307 | unsigned char tmp[2], *data; | |
67c10366 | 308 | int nr_triplets, data_size, ret = 0; |
9a2fe9b8 RB |
309 | int clock = snd_usb_clock_find_source(chip, fp->protocol, |
310 | fp->clock, false); | |
e5779998 | 311 | |
d07140ba | 312 | if (clock < 0) { |
0ba41d91 TI |
313 | dev_err(&dev->dev, |
314 | "%s(): unable to find clock source (clock %d)\n", | |
d07140ba DM |
315 | __func__, clock); |
316 | goto err; | |
317 | } | |
318 | ||
e5779998 DM |
319 | /* get the number of sample rates first by only fetching 2 bytes */ |
320 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
321 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, | |
11bcbc44 DM |
322 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
323 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 324 | tmp, sizeof(tmp)); |
e5779998 DM |
325 | |
326 | if (ret < 0) { | |
0ba41d91 TI |
327 | dev_err(&dev->dev, |
328 | "%s(): unable to retrieve number of sample rates (clock %d)\n", | |
79f920fb | 329 | __func__, clock); |
e5779998 DM |
330 | goto err; |
331 | } | |
332 | ||
67c10366 DM |
333 | nr_triplets = (tmp[1] << 8) | tmp[0]; |
334 | data_size = 2 + 12 * nr_triplets; | |
e5779998 DM |
335 | data = kzalloc(data_size, GFP_KERNEL); |
336 | if (!data) { | |
337 | ret = -ENOMEM; | |
338 | goto err; | |
339 | } | |
340 | ||
341 | /* now get the full information */ | |
342 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
79f920fb | 343 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
11bcbc44 DM |
344 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
345 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 346 | data, data_size); |
e5779998 DM |
347 | |
348 | if (ret < 0) { | |
0ba41d91 TI |
349 | dev_err(&dev->dev, |
350 | "%s(): unable to retrieve sample rate range (clock %d)\n", | |
79f920fb | 351 | __func__, clock); |
e5779998 DM |
352 | ret = -EINVAL; |
353 | goto err_free; | |
354 | } | |
355 | ||
67c10366 DM |
356 | /* Call the triplet parser, and make sure fp->rate_table is NULL. |
357 | * We just use the return value to know how many sample rates we | |
358 | * will have to deal with. */ | |
359 | kfree(fp->rate_table); | |
360 | fp->rate_table = NULL; | |
0ba41d91 | 361 | fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
67c10366 DM |
362 | |
363 | if (fp->nr_rates == 0) { | |
364 | /* SNDRV_PCM_RATE_CONTINUOUS */ | |
365 | ret = 0; | |
366 | goto err_free; | |
367 | } | |
368 | ||
6da2ec56 | 369 | fp->rate_table = kmalloc_array(fp->nr_rates, sizeof(int), GFP_KERNEL); |
e5779998 DM |
370 | if (!fp->rate_table) { |
371 | ret = -ENOMEM; | |
372 | goto err_free; | |
373 | } | |
374 | ||
67c10366 DM |
375 | /* Call the triplet parser again, but this time, fp->rate_table is |
376 | * allocated, so the rates will be stored */ | |
0ba41d91 | 377 | parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
e5779998 DM |
378 | |
379 | err_free: | |
380 | kfree(data); | |
381 | err: | |
382 | return ret; | |
383 | } | |
384 | ||
385 | /* | |
386 | * parse the format type I and III descriptors | |
387 | */ | |
388 | static int parse_audio_format_i(struct snd_usb_audio *chip, | |
9a2fe9b8 RB |
389 | struct audioformat *fp, u64 format, |
390 | void *_fmt) | |
e5779998 | 391 | { |
74c34ca1 | 392 | snd_pcm_format_t pcm_format; |
9a2fe9b8 | 393 | unsigned int fmt_type; |
74c34ca1 | 394 | int ret; |
e5779998 | 395 | |
9a2fe9b8 RB |
396 | switch (fp->protocol) { |
397 | default: | |
398 | case UAC_VERSION_1: | |
399 | case UAC_VERSION_2: { | |
400 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
401 | ||
402 | fmt_type = fmt->bFormatType; | |
403 | break; | |
404 | } | |
405 | case UAC_VERSION_3: { | |
406 | /* fp->fmt_type is already set in this case */ | |
407 | fmt_type = fp->fmt_type; | |
408 | break; | |
409 | } | |
410 | } | |
411 | ||
412 | if (fmt_type == UAC_FORMAT_TYPE_III) { | |
e5779998 DM |
413 | /* FIXME: the format type is really IECxxx |
414 | * but we give normal PCM format to get the existing | |
415 | * apps working... | |
416 | */ | |
417 | switch (chip->usb_id) { | |
418 | ||
419 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
420 | if (chip->setup == 0x00 && | |
421 | fp->altsetting == 6) | |
422 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; | |
423 | else | |
424 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
425 | break; | |
426 | default: | |
427 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
428 | } | |
74c34ca1 | 429 | fp->formats = pcm_format_to_bits(pcm_format); |
e5779998 | 430 | } else { |
9a2fe9b8 | 431 | fp->formats = parse_audio_format_i_type(chip, fp, format, _fmt); |
29088fef | 432 | if (!fp->formats) |
8ad10dc6 | 433 | return -EINVAL; |
e5779998 DM |
434 | } |
435 | ||
e5779998 DM |
436 | /* gather possible sample rates */ |
437 | /* audio class v1 reports possible sample rates as part of the | |
438 | * proprietary class specific descriptor. | |
439 | * audio class v2 uses class specific EP0 range requests for that. | |
440 | */ | |
8f898e92 | 441 | switch (fp->protocol) { |
a2acad82 | 442 | default: |
9a2fe9b8 RB |
443 | case UAC_VERSION_1: { |
444 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
445 | ||
e5779998 | 446 | fp->channels = fmt->bNrChannels; |
74754f97 | 447 | ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7); |
e5779998 | 448 | break; |
9a2fe9b8 | 449 | } |
e5779998 | 450 | case UAC_VERSION_2: |
9a2fe9b8 | 451 | case UAC_VERSION_3: { |
e5779998 | 452 | /* fp->channels is already set in this case */ |
9a2fe9b8 | 453 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
454 | break; |
455 | } | |
9a2fe9b8 | 456 | } |
e5779998 DM |
457 | |
458 | if (fp->channels < 1) { | |
0ba41d91 TI |
459 | usb_audio_err(chip, |
460 | "%u:%d : invalid channels %d\n", | |
461 | fp->iface, fp->altsetting, fp->channels); | |
8ad10dc6 | 462 | return -EINVAL; |
e5779998 DM |
463 | } |
464 | ||
465 | return ret; | |
466 | } | |
467 | ||
468 | /* | |
469 | * parse the format type II descriptor | |
470 | */ | |
471 | static int parse_audio_format_ii(struct snd_usb_audio *chip, | |
472 | struct audioformat *fp, | |
9a2fe9b8 | 473 | u64 format, void *_fmt) |
e5779998 DM |
474 | { |
475 | int brate, framesize, ret; | |
e5779998 DM |
476 | |
477 | switch (format) { | |
478 | case UAC_FORMAT_TYPE_II_AC3: | |
479 | /* FIXME: there is no AC3 format defined yet */ | |
015eb0b0 CL |
480 | // fp->formats = SNDRV_PCM_FMTBIT_AC3; |
481 | fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */ | |
e5779998 DM |
482 | break; |
483 | case UAC_FORMAT_TYPE_II_MPEG: | |
015eb0b0 | 484 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
485 | break; |
486 | default: | |
0ba41d91 | 487 | usb_audio_info(chip, |
9a2fe9b8 | 488 | "%u:%d : unknown format tag %#llx is detected. processed as MPEG.\n", |
0ba41d91 | 489 | fp->iface, fp->altsetting, format); |
015eb0b0 | 490 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
491 | break; |
492 | } | |
493 | ||
494 | fp->channels = 1; | |
495 | ||
8f898e92 | 496 | switch (fp->protocol) { |
a2acad82 | 497 | default: |
e5779998 DM |
498 | case UAC_VERSION_1: { |
499 | struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; | |
500 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
501 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 502 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 DM |
503 | fp->frame_size = framesize; |
504 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ | |
505 | break; | |
506 | } | |
507 | case UAC_VERSION_2: { | |
508 | struct uac_format_type_ii_ext_descriptor *fmt = _fmt; | |
509 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
510 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 511 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 | 512 | fp->frame_size = framesize; |
9a2fe9b8 | 513 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
514 | break; |
515 | } | |
516 | } | |
517 | ||
518 | return ret; | |
519 | } | |
520 | ||
2fcdb06d | 521 | int snd_usb_parse_audio_format(struct snd_usb_audio *chip, |
9a2fe9b8 | 522 | struct audioformat *fp, u64 format, |
2fcdb06d | 523 | struct uac_format_type_i_continuous_descriptor *fmt, |
8f898e92 | 524 | int stream) |
e5779998 DM |
525 | { |
526 | int err; | |
527 | ||
74754f97 | 528 | switch (fmt->bFormatType) { |
e5779998 DM |
529 | case UAC_FORMAT_TYPE_I: |
530 | case UAC_FORMAT_TYPE_III: | |
8f898e92 | 531 | err = parse_audio_format_i(chip, fp, format, fmt); |
e5779998 DM |
532 | break; |
533 | case UAC_FORMAT_TYPE_II: | |
8f898e92 | 534 | err = parse_audio_format_ii(chip, fp, format, fmt); |
e5779998 DM |
535 | break; |
536 | default: | |
0ba41d91 TI |
537 | usb_audio_info(chip, |
538 | "%u:%d : format type %d is not supported yet\n", | |
539 | fp->iface, fp->altsetting, | |
540 | fmt->bFormatType); | |
8d091242 | 541 | return -ENOTSUPP; |
e5779998 | 542 | } |
74754f97 | 543 | fp->fmt_type = fmt->bFormatType; |
e5779998 DM |
544 | if (err < 0) |
545 | return err; | |
546 | #if 1 | |
547 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ | |
548 | /* extigy apparently supports sample rates other than 48k | |
549 | * but not in ordinary way. so we enable only 48k atm. | |
550 | */ | |
551 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || | |
552 | chip->usb_id == USB_ID(0x041e, 0x3020) || | |
553 | chip->usb_id == USB_ID(0x041e, 0x3061)) { | |
74754f97 | 554 | if (fmt->bFormatType == UAC_FORMAT_TYPE_I && |
e5779998 DM |
555 | fp->rates != SNDRV_PCM_RATE_48000 && |
556 | fp->rates != SNDRV_PCM_RATE_96000) | |
8d091242 | 557 | return -ENOTSUPP; |
e5779998 DM |
558 | } |
559 | #endif | |
560 | return 0; | |
561 | } | |
562 | ||
9a2fe9b8 RB |
563 | int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip, |
564 | struct audioformat *fp, | |
565 | struct uac3_as_header_descriptor *as, | |
566 | int stream) | |
567 | { | |
568 | u64 format = le64_to_cpu(as->bmFormats); | |
569 | int err; | |
570 | ||
571 | /* | |
572 | * Type I format bits are D0..D6 | |
573 | * This test works because type IV is not supported | |
574 | */ | |
575 | if (format & 0x7f) | |
576 | fp->fmt_type = UAC_FORMAT_TYPE_I; | |
577 | else | |
578 | fp->fmt_type = UAC_FORMAT_TYPE_III; | |
579 | ||
580 | err = parse_audio_format_i(chip, fp, format, as); | |
581 | if (err < 0) | |
582 | return err; | |
583 | ||
584 | return 0; | |
585 | } |