Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
e5779998 | 2 | /* |
e5779998 DM |
3 | */ |
4 | ||
5 | #include <linux/init.h> | |
36db0456 | 6 | #include <linux/slab.h> |
e5779998 DM |
7 | #include <linux/usb.h> |
8 | #include <linux/usb/audio.h> | |
7e847894 | 9 | #include <linux/usb/audio-v2.h> |
9a2fe9b8 | 10 | #include <linux/usb/audio-v3.h> |
e5779998 DM |
11 | |
12 | #include <sound/core.h> | |
13 | #include <sound/pcm.h> | |
14 | ||
15 | #include "usbaudio.h" | |
16 | #include "card.h" | |
17 | #include "quirks.h" | |
18 | #include "helper.h" | |
79f920fb | 19 | #include "clock.h" |
ee95cb61 | 20 | #include "format.h" |
e5779998 DM |
21 | |
22 | /* | |
23 | * parse the audio format type I descriptor | |
24 | * and returns the corresponding pcm format | |
25 | * | |
26 | * @dev: usb device | |
27 | * @fp: audioformat record | |
28 | * @format: the format tag (wFormatTag) | |
9a2fe9b8 | 29 | * @fmt: the format type descriptor (v1/v2) or AudioStreaming descriptor (v3) |
e5779998 | 30 | */ |
29088fef | 31 | static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, |
e5779998 | 32 | struct audioformat *fp, |
9a2fe9b8 | 33 | u64 format, void *_fmt) |
e5779998 | 34 | { |
e5779998 | 35 | int sample_width, sample_bytes; |
717bfb5f | 36 | u64 pcm_formats = 0; |
e5779998 | 37 | |
8f898e92 | 38 | switch (fp->protocol) { |
a2acad82 CL |
39 | case UAC_VERSION_1: |
40 | default: { | |
e5779998 | 41 | struct uac_format_type_i_discrete_descriptor *fmt = _fmt; |
43d5ca88 TI |
42 | if (format >= 64) |
43 | return 0; /* invalid format */ | |
e5779998 DM |
44 | sample_width = fmt->bBitResolution; |
45 | sample_bytes = fmt->bSubframeSize; | |
b44d419b | 46 | format = 1ULL << format; |
e5779998 DM |
47 | break; |
48 | } | |
49 | ||
50 | case UAC_VERSION_2: { | |
51 | struct uac_format_type_i_ext_descriptor *fmt = _fmt; | |
52 | sample_width = fmt->bBitResolution; | |
53 | sample_bytes = fmt->bSubslotSize; | |
717bfb5f | 54 | |
3a572d94 | 55 | if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) { |
717bfb5f | 56 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; |
3a572d94 JL |
57 | /* flag potentially raw DSD capable altsettings */ |
58 | fp->dsd_raw = true; | |
59 | } | |
717bfb5f | 60 | |
29088fef | 61 | format <<= 1; |
e5779998 DM |
62 | break; |
63 | } | |
9a2fe9b8 RB |
64 | case UAC_VERSION_3: { |
65 | struct uac3_as_header_descriptor *as = _fmt; | |
66 | ||
67 | sample_width = as->bBitResolution; | |
68 | sample_bytes = as->bSubslotSize; | |
69 | ||
70 | if (format & UAC3_FORMAT_TYPE_I_RAW_DATA) | |
71 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; | |
72 | ||
73 | format <<= 1; | |
74 | break; | |
75 | } | |
e5779998 DM |
76 | } |
77 | ||
c7a13264 JL |
78 | fp->fmt_bits = sample_width; |
79 | ||
717bfb5f DM |
80 | if ((pcm_formats == 0) && |
81 | (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) { | |
29088fef | 82 | /* some devices don't define this correctly... */ |
0ba41d91 TI |
83 | usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n", |
84 | fp->iface, fp->altsetting); | |
29088fef CL |
85 | format = 1 << UAC_FORMAT_TYPE_I_PCM; |
86 | } | |
87 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) { | |
6d1f2f60 TH |
88 | if (((chip->usb_id == USB_ID(0x0582, 0x0016)) || |
89 | /* Edirol SD-90 */ | |
90 | (chip->usb_id == USB_ID(0x0582, 0x000c))) && | |
91 | /* Roland SC-D70 */ | |
061b869e CL |
92 | sample_width == 24 && sample_bytes == 2) |
93 | sample_bytes = 3; | |
94 | else if (sample_width > sample_bytes * 8) { | |
0ba41d91 TI |
95 | usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n", |
96 | fp->iface, fp->altsetting, | |
97 | sample_width, sample_bytes); | |
e5779998 DM |
98 | } |
99 | /* check the format byte size */ | |
100 | switch (sample_bytes) { | |
101 | case 1: | |
29088fef | 102 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
e5779998 DM |
103 | break; |
104 | case 2: | |
105 | if (snd_usb_is_big_endian_format(chip, fp)) | |
29088fef | 106 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_BE; /* grrr, big endian!! */ |
e5779998 | 107 | else |
29088fef | 108 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_LE; |
e5779998 DM |
109 | break; |
110 | case 3: | |
111 | if (snd_usb_is_big_endian_format(chip, fp)) | |
29088fef | 112 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3BE; /* grrr, big endian!! */ |
e5779998 | 113 | else |
29088fef | 114 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3LE; |
e5779998 DM |
115 | break; |
116 | case 4: | |
29088fef | 117 | pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE; |
e5779998 DM |
118 | break; |
119 | default: | |
0ba41d91 TI |
120 | usb_audio_info(chip, |
121 | "%u:%d : unsupported sample bitwidth %d in %d bytes\n", | |
122 | fp->iface, fp->altsetting, | |
123 | sample_width, sample_bytes); | |
e5779998 DM |
124 | break; |
125 | } | |
29088fef CL |
126 | } |
127 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM8)) { | |
e5779998 DM |
128 | /* Dallas DS4201 workaround: it advertises U8 format, but really |
129 | supports S8. */ | |
130 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) | |
29088fef CL |
131 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
132 | else | |
133 | pcm_formats |= SNDRV_PCM_FMTBIT_U8; | |
134 | } | |
135 | if (format & (1 << UAC_FORMAT_TYPE_I_IEEE_FLOAT)) { | |
136 | pcm_formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; | |
137 | } | |
138 | if (format & (1 << UAC_FORMAT_TYPE_I_ALAW)) { | |
139 | pcm_formats |= SNDRV_PCM_FMTBIT_A_LAW; | |
140 | } | |
141 | if (format & (1 << UAC_FORMAT_TYPE_I_MULAW)) { | |
142 | pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW; | |
143 | } | |
144 | if (format & ~0x3f) { | |
0ba41d91 | 145 | usb_audio_info(chip, |
9a2fe9b8 | 146 | "%u:%d : unsupported format bits %#llx\n", |
0ba41d91 | 147 | fp->iface, fp->altsetting, format); |
e5779998 | 148 | } |
126825e7 DM |
149 | |
150 | pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes); | |
151 | ||
29088fef | 152 | return pcm_formats; |
e5779998 DM |
153 | } |
154 | ||
74f73476 TI |
155 | static int set_fixed_rate(struct audioformat *fp, int rate, int rate_bits) |
156 | { | |
157 | kfree(fp->rate_table); | |
158 | fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL); | |
159 | if (!fp->rate_table) | |
160 | return -ENOMEM; | |
161 | fp->nr_rates = 1; | |
162 | fp->rate_min = rate; | |
163 | fp->rate_max = rate; | |
164 | fp->rates = rate_bits; | |
165 | fp->rate_table[0] = rate; | |
166 | return 0; | |
167 | } | |
e5779998 | 168 | |
13ee0336 TI |
169 | /* set up rate_min, rate_max and rates from the rate table */ |
170 | static void set_rate_table_min_max(struct audioformat *fp) | |
171 | { | |
172 | unsigned int rate; | |
173 | int i; | |
174 | ||
175 | fp->rate_min = INT_MAX; | |
176 | fp->rate_max = 0; | |
177 | fp->rates = 0; | |
178 | for (i = 0; i < fp->nr_rates; i++) { | |
179 | rate = fp->rate_table[i]; | |
180 | fp->rate_min = min(fp->rate_min, rate); | |
181 | fp->rate_max = max(fp->rate_max, rate); | |
182 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); | |
183 | } | |
184 | } | |
185 | ||
e5779998 DM |
186 | /* |
187 | * parse the format descriptor and stores the possible sample rates | |
188 | * on the audioformat table (audio class v1). | |
189 | * | |
190 | * @dev: usb device | |
191 | * @fp: audioformat record | |
192 | * @fmt: the format descriptor | |
193 | * @offset: the start offset of descriptor pointing the rate type | |
194 | * (7 for type I and II, 8 for type II) | |
195 | */ | |
196 | static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp, | |
197 | unsigned char *fmt, int offset) | |
198 | { | |
199 | int nr_rates = fmt[offset]; | |
200 | ||
201 | if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { | |
0ba41d91 TI |
202 | usb_audio_err(chip, |
203 | "%u:%d : invalid UAC_FORMAT_TYPE desc\n", | |
204 | fp->iface, fp->altsetting); | |
8ad10dc6 | 205 | return -EINVAL; |
e5779998 DM |
206 | } |
207 | ||
208 | if (nr_rates) { | |
209 | /* | |
210 | * build the rate table and bitmap flags | |
211 | */ | |
212 | int r, idx; | |
213 | ||
6da2ec56 KC |
214 | fp->rate_table = kmalloc_array(nr_rates, sizeof(int), |
215 | GFP_KERNEL); | |
1bc00f32 | 216 | if (fp->rate_table == NULL) |
8ad10dc6 | 217 | return -ENOMEM; |
e5779998 DM |
218 | |
219 | fp->nr_rates = 0; | |
e5779998 DM |
220 | for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { |
221 | unsigned int rate = combine_triple(&fmt[idx]); | |
222 | if (!rate) | |
223 | continue; | |
224 | /* C-Media CM6501 mislabels its 96 kHz altsetting */ | |
8129e79e | 225 | /* Terratec Aureon 7.1 USB C-Media 6206, too */ |
e5779998 DM |
226 | if (rate == 48000 && nr_rates == 1 && |
227 | (chip->usb_id == USB_ID(0x0d8c, 0x0201) || | |
8129e79e WB |
228 | chip->usb_id == USB_ID(0x0d8c, 0x0102) || |
229 | chip->usb_id == USB_ID(0x0ccd, 0x00b1)) && | |
e5779998 DM |
230 | fp->altsetting == 5 && fp->maxpacksize == 392) |
231 | rate = 96000; | |
8c4b79cf PH |
232 | /* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */ |
233 | if (rate == 16000 && | |
234 | (chip->usb_id == USB_ID(0x041e, 0x4064) || | |
235 | chip->usb_id == USB_ID(0x041e, 0x4068))) | |
e5779998 DM |
236 | rate = 8000; |
237 | ||
13ee0336 | 238 | fp->rate_table[fp->nr_rates++] = rate; |
e5779998 DM |
239 | } |
240 | if (!fp->nr_rates) { | |
7ec827b9 TI |
241 | usb_audio_info(chip, |
242 | "%u:%d: All rates were zero\n", | |
243 | fp->iface, fp->altsetting); | |
8ad10dc6 | 244 | return -EINVAL; |
e5779998 | 245 | } |
13ee0336 | 246 | set_rate_table_min_max(fp); |
e5779998 DM |
247 | } else { |
248 | /* continuous rates */ | |
249 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
250 | fp->rate_min = combine_triple(&fmt[offset + 1]); | |
251 | fp->rate_max = combine_triple(&fmt[offset + 4]); | |
252 | } | |
74f73476 TI |
253 | |
254 | /* Jabra Evolve 65 headset */ | |
255 | if (chip->usb_id == USB_ID(0x0b0e, 0x030b)) { | |
256 | /* only 48kHz for playback while keeping 16kHz for capture */ | |
257 | if (fp->nr_rates != 1) | |
258 | return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); | |
259 | } | |
260 | ||
e5779998 DM |
261 | return 0; |
262 | } | |
263 | ||
8dc5efe3 NK |
264 | |
265 | /* | |
266 | * Presonus Studio 1810c supports a limited set of sampling | |
267 | * rates per altsetting but reports the full set each time. | |
268 | * If we don't filter out the unsupported rates and attempt | |
269 | * to configure the card, it will hang refusing to do any | |
270 | * further audio I/O until a hard reset is performed. | |
271 | * | |
272 | * The list of supported rates per altsetting (set of available | |
273 | * I/O channels) is described in the owner's manual, section 2.2. | |
274 | */ | |
275 | static bool s1810c_valid_sample_rate(struct audioformat *fp, | |
276 | unsigned int rate) | |
277 | { | |
278 | switch (fp->altsetting) { | |
279 | case 1: | |
280 | /* All ADAT ports available */ | |
281 | return rate <= 48000; | |
282 | case 2: | |
283 | /* Half of ADAT ports available */ | |
284 | return (rate == 88200 || rate == 96000); | |
285 | case 3: | |
286 | /* Analog I/O only (no S/PDIF nor ADAT) */ | |
287 | return rate >= 176400; | |
288 | default: | |
289 | return false; | |
290 | } | |
291 | return false; | |
292 | } | |
293 | ||
1c826792 AT |
294 | /* |
295 | * Many Focusrite devices supports a limited set of sampling rates per | |
296 | * altsetting. Maximum rate is exposed in the last 4 bytes of Format Type | |
297 | * descriptor which has a non-standard bLength = 10. | |
298 | */ | |
299 | static bool focusrite_valid_sample_rate(struct snd_usb_audio *chip, | |
300 | struct audioformat *fp, | |
301 | unsigned int rate) | |
302 | { | |
303 | struct usb_interface *iface; | |
304 | struct usb_host_interface *alts; | |
305 | unsigned char *fmt; | |
306 | unsigned int max_rate; | |
307 | ||
308 | iface = usb_ifnum_to_if(chip->dev, fp->iface); | |
309 | if (!iface) | |
310 | return true; | |
311 | ||
312 | alts = &iface->altsetting[fp->altset_idx]; | |
313 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, | |
314 | NULL, UAC_FORMAT_TYPE); | |
315 | if (!fmt) | |
316 | return true; | |
317 | ||
318 | if (fmt[0] == 10) { /* bLength */ | |
319 | max_rate = combine_quad(&fmt[6]); | |
320 | ||
321 | /* Validate max rate */ | |
322 | if (max_rate != 48000 && | |
323 | max_rate != 96000 && | |
324 | max_rate != 192000 && | |
325 | max_rate != 384000) { | |
326 | ||
327 | usb_audio_info(chip, | |
328 | "%u:%d : unexpected max rate: %u\n", | |
329 | fp->iface, fp->altsetting, max_rate); | |
330 | ||
331 | return true; | |
332 | } | |
333 | ||
334 | return rate <= max_rate; | |
335 | } | |
336 | ||
337 | return true; | |
338 | } | |
339 | ||
67c10366 DM |
340 | /* |
341 | * Helper function to walk the array of sample rate triplets reported by | |
342 | * the device. The problem is that we need to parse whole array first to | |
343 | * get to know how many sample rates we have to expect. | |
344 | * Then fp->rate_table can be allocated and filled. | |
345 | */ | |
0ba41d91 TI |
346 | static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip, |
347 | struct audioformat *fp, int nr_triplets, | |
67c10366 DM |
348 | const unsigned char *data) |
349 | { | |
350 | int i, nr_rates = 0; | |
351 | ||
67c10366 DM |
352 | for (i = 0; i < nr_triplets; i++) { |
353 | int min = combine_quad(&data[2 + 12 * i]); | |
354 | int max = combine_quad(&data[6 + 12 * i]); | |
355 | int res = combine_quad(&data[10 + 12 * i]); | |
4fa0e81b | 356 | unsigned int rate; |
67c10366 DM |
357 | |
358 | if ((max < 0) || (min < 0) || (res < 0) || (max < min)) | |
359 | continue; | |
360 | ||
361 | /* | |
362 | * for ranges with res == 1, we announce a continuous sample | |
363 | * rate range, and this function should return 0 for no further | |
364 | * parsing. | |
365 | */ | |
366 | if (res == 1) { | |
367 | fp->rate_min = min; | |
368 | fp->rate_max = max; | |
369 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
370 | return 0; | |
371 | } | |
372 | ||
373 | for (rate = min; rate <= max; rate += res) { | |
8dc5efe3 NK |
374 | |
375 | /* Filter out invalid rates on Presonus Studio 1810c */ | |
376 | if (chip->usb_id == USB_ID(0x0194f, 0x010c) && | |
377 | !s1810c_valid_sample_rate(fp, rate)) | |
378 | goto skip_rate; | |
379 | ||
1c826792 AT |
380 | /* Filter out invalid rates on Focusrite devices */ |
381 | if (USB_ID_VENDOR(chip->usb_id) == 0x1235 && | |
382 | !focusrite_valid_sample_rate(chip, fp, rate)) | |
383 | goto skip_rate; | |
384 | ||
67c10366 DM |
385 | if (fp->rate_table) |
386 | fp->rate_table[nr_rates] = rate; | |
67c10366 | 387 | nr_rates++; |
8866f405 | 388 | if (nr_rates >= MAX_NR_RATES) { |
0ba41d91 | 389 | usb_audio_err(chip, "invalid uac2 rates\n"); |
4fa0e81b XW |
390 | break; |
391 | } | |
67c10366 | 392 | |
8dc5efe3 | 393 | skip_rate: |
67c10366 DM |
394 | /* avoid endless loop */ |
395 | if (res == 0) | |
396 | break; | |
397 | } | |
398 | } | |
399 | ||
400 | return nr_rates; | |
401 | } | |
402 | ||
8abf41dc CS |
403 | /* Line6 Helix series and the Rode Rodecaster Pro don't support the |
404 | * UAC2_CS_RANGE usb function call. Return a static table of known | |
405 | * clock rates. | |
d4bd3053 NL |
406 | */ |
407 | static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip, | |
408 | struct audioformat *fp) | |
409 | { | |
410 | switch (chip->usb_id) { | |
8be03a71 TI |
411 | case USB_ID(0x0e41, 0x4241): /* Line6 Helix */ |
412 | case USB_ID(0x0e41, 0x4242): /* Line6 Helix Rack */ | |
413 | case USB_ID(0x0e41, 0x4244): /* Line6 Helix LT */ | |
414 | case USB_ID(0x0e41, 0x4246): /* Line6 HX-Stomp */ | |
7da4c510 | 415 | case USB_ID(0x0e41, 0x4247): /* Line6 Pod Go */ |
9b132f27 TI |
416 | case USB_ID(0x0e41, 0x4248): /* Line6 Helix >= fw 2.82 */ |
417 | case USB_ID(0x0e41, 0x4249): /* Line6 Helix Rack >= fw 2.82 */ | |
418 | case USB_ID(0x0e41, 0x424a): /* Line6 Helix LT >= fw 2.82 */ | |
8abf41dc | 419 | case USB_ID(0x19f7, 0x0011): /* Rode Rodecaster Pro */ |
74f73476 | 420 | return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); |
d4bd3053 NL |
421 | } |
422 | ||
423 | return -ENODEV; | |
424 | } | |
425 | ||
93db51d0 TI |
426 | /* check whether the given altsetting is supported for the already set rate */ |
427 | static bool check_valid_altsetting_v2v3(struct snd_usb_audio *chip, int iface, | |
428 | int altsetting) | |
429 | { | |
430 | struct usb_device *dev = chip->dev; | |
431 | __le64 raw_data = 0; | |
432 | u64 data; | |
433 | int err; | |
434 | ||
435 | /* we assume 64bit is enough for any altsettings */ | |
436 | if (snd_BUG_ON(altsetting >= 64 - 8)) | |
437 | return false; | |
438 | ||
51cb8e20 | 439 | err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, |
93db51d0 TI |
440 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
441 | UAC2_AS_VAL_ALT_SETTINGS << 8, | |
442 | iface, &raw_data, sizeof(raw_data)); | |
443 | if (err < 0) | |
444 | return false; | |
445 | ||
446 | data = le64_to_cpu(raw_data); | |
447 | /* first byte contains the bitmap size */ | |
448 | if ((data & 0xff) * 8 < altsetting) | |
449 | return false; | |
450 | if (data & (1ULL << (altsetting + 8))) | |
451 | return true; | |
452 | ||
453 | return false; | |
454 | } | |
455 | ||
456 | /* | |
457 | * Validate each sample rate with the altsetting | |
458 | * Rebuild the rate table if only partial values are valid | |
459 | */ | |
460 | static int validate_sample_rate_table_v2v3(struct snd_usb_audio *chip, | |
461 | struct audioformat *fp, | |
462 | int clock) | |
463 | { | |
464 | struct usb_device *dev = chip->dev; | |
465 | unsigned int *table; | |
466 | unsigned int nr_rates; | |
93db51d0 TI |
467 | int i, err; |
468 | ||
fe773b87 TI |
469 | /* performing the rate verification may lead to unexpected USB bus |
470 | * behavior afterwards by some unknown reason. Do this only for the | |
471 | * known devices. | |
472 | */ | |
473 | switch (USB_ID_VENDOR(chip->usb_id)) { | |
474 | case 0x07fd: /* MOTU */ | |
475 | break; | |
476 | default: | |
477 | return 0; /* don't perform the validation as default */ | |
478 | } | |
479 | ||
93db51d0 TI |
480 | table = kcalloc(fp->nr_rates, sizeof(*table), GFP_KERNEL); |
481 | if (!table) | |
482 | return -ENOMEM; | |
483 | ||
484 | /* clear the interface altsetting at first */ | |
485 | usb_set_interface(dev, fp->iface, 0); | |
486 | ||
487 | nr_rates = 0; | |
488 | for (i = 0; i < fp->nr_rates; i++) { | |
489 | err = snd_usb_set_sample_rate_v2v3(chip, fp, clock, | |
490 | fp->rate_table[i]); | |
491 | if (err < 0) | |
492 | continue; | |
493 | ||
13ee0336 | 494 | if (check_valid_altsetting_v2v3(chip, fp->iface, fp->altsetting)) |
93db51d0 | 495 | table[nr_rates++] = fp->rate_table[i]; |
93db51d0 TI |
496 | } |
497 | ||
498 | if (!nr_rates) { | |
499 | usb_audio_dbg(chip, | |
500 | "No valid sample rate available for %d:%d, assuming a firmware bug\n", | |
501 | fp->iface, fp->altsetting); | |
502 | nr_rates = fp->nr_rates; /* continue as is */ | |
503 | } | |
504 | ||
505 | if (fp->nr_rates == nr_rates) { | |
506 | kfree(table); | |
507 | return 0; | |
508 | } | |
509 | ||
510 | kfree(fp->rate_table); | |
511 | fp->rate_table = table; | |
512 | fp->nr_rates = nr_rates; | |
93db51d0 TI |
513 | return 0; |
514 | } | |
515 | ||
e5779998 DM |
516 | /* |
517 | * parse the format descriptor and stores the possible sample rates | |
9a2fe9b8 | 518 | * on the audioformat table (audio class v2 and v3). |
e5779998 | 519 | */ |
9a2fe9b8 | 520 | static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip, |
3d8d4dcf | 521 | struct audioformat *fp) |
e5779998 DM |
522 | { |
523 | struct usb_device *dev = chip->dev; | |
524 | unsigned char tmp[2], *data; | |
d4bd3053 | 525 | int nr_triplets, data_size, ret = 0, ret_l6; |
9f35a312 | 526 | int clock = snd_usb_clock_find_source(chip, fp, false); |
e5779998 | 527 | |
d07140ba | 528 | if (clock < 0) { |
0ba41d91 TI |
529 | dev_err(&dev->dev, |
530 | "%s(): unable to find clock source (clock %d)\n", | |
d07140ba DM |
531 | __func__, clock); |
532 | goto err; | |
533 | } | |
534 | ||
e5779998 DM |
535 | /* get the number of sample rates first by only fetching 2 bytes */ |
536 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
537 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, | |
11bcbc44 DM |
538 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
539 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 540 | tmp, sizeof(tmp)); |
e5779998 DM |
541 | |
542 | if (ret < 0) { | |
d4bd3053 NL |
543 | /* line6 helix devices don't support UAC2_CS_CONTROL_SAM_FREQ call */ |
544 | ret_l6 = line6_parse_audio_format_rates_quirk(chip, fp); | |
545 | if (ret_l6 == -ENODEV) { | |
546 | /* no line6 device found continue showing the error */ | |
547 | dev_err(&dev->dev, | |
548 | "%s(): unable to retrieve number of sample rates (clock %d)\n", | |
549 | __func__, clock); | |
550 | goto err; | |
551 | } | |
552 | if (ret_l6 == 0) { | |
553 | dev_info(&dev->dev, | |
554 | "%s(): unable to retrieve number of sample rates: set it to a predefined value (clock %d).\n", | |
79f920fb | 555 | __func__, clock); |
d4bd3053 NL |
556 | return 0; |
557 | } | |
558 | ret = ret_l6; | |
e5779998 DM |
559 | goto err; |
560 | } | |
561 | ||
67c10366 DM |
562 | nr_triplets = (tmp[1] << 8) | tmp[0]; |
563 | data_size = 2 + 12 * nr_triplets; | |
e5779998 DM |
564 | data = kzalloc(data_size, GFP_KERNEL); |
565 | if (!data) { | |
566 | ret = -ENOMEM; | |
567 | goto err; | |
568 | } | |
569 | ||
570 | /* now get the full information */ | |
571 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
79f920fb | 572 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
11bcbc44 DM |
573 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
574 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 575 | data, data_size); |
e5779998 DM |
576 | |
577 | if (ret < 0) { | |
0ba41d91 TI |
578 | dev_err(&dev->dev, |
579 | "%s(): unable to retrieve sample rate range (clock %d)\n", | |
79f920fb | 580 | __func__, clock); |
e5779998 DM |
581 | ret = -EINVAL; |
582 | goto err_free; | |
583 | } | |
584 | ||
67c10366 DM |
585 | /* Call the triplet parser, and make sure fp->rate_table is NULL. |
586 | * We just use the return value to know how many sample rates we | |
587 | * will have to deal with. */ | |
588 | kfree(fp->rate_table); | |
589 | fp->rate_table = NULL; | |
0ba41d91 | 590 | fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
67c10366 DM |
591 | |
592 | if (fp->nr_rates == 0) { | |
593 | /* SNDRV_PCM_RATE_CONTINUOUS */ | |
594 | ret = 0; | |
595 | goto err_free; | |
596 | } | |
597 | ||
6da2ec56 | 598 | fp->rate_table = kmalloc_array(fp->nr_rates, sizeof(int), GFP_KERNEL); |
e5779998 DM |
599 | if (!fp->rate_table) { |
600 | ret = -ENOMEM; | |
601 | goto err_free; | |
602 | } | |
603 | ||
67c10366 DM |
604 | /* Call the triplet parser again, but this time, fp->rate_table is |
605 | * allocated, so the rates will be stored */ | |
0ba41d91 | 606 | parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
e5779998 | 607 | |
93db51d0 | 608 | ret = validate_sample_rate_table_v2v3(chip, fp, clock); |
13ee0336 TI |
609 | if (ret < 0) |
610 | goto err_free; | |
611 | ||
612 | set_rate_table_min_max(fp); | |
93db51d0 | 613 | |
e5779998 DM |
614 | err_free: |
615 | kfree(data); | |
616 | err: | |
617 | return ret; | |
618 | } | |
619 | ||
620 | /* | |
621 | * parse the format type I and III descriptors | |
622 | */ | |
623 | static int parse_audio_format_i(struct snd_usb_audio *chip, | |
9a2fe9b8 RB |
624 | struct audioformat *fp, u64 format, |
625 | void *_fmt) | |
e5779998 | 626 | { |
74c34ca1 | 627 | snd_pcm_format_t pcm_format; |
9a2fe9b8 | 628 | unsigned int fmt_type; |
74c34ca1 | 629 | int ret; |
e5779998 | 630 | |
9a2fe9b8 RB |
631 | switch (fp->protocol) { |
632 | default: | |
633 | case UAC_VERSION_1: | |
634 | case UAC_VERSION_2: { | |
635 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
636 | ||
637 | fmt_type = fmt->bFormatType; | |
638 | break; | |
639 | } | |
640 | case UAC_VERSION_3: { | |
641 | /* fp->fmt_type is already set in this case */ | |
642 | fmt_type = fp->fmt_type; | |
643 | break; | |
644 | } | |
645 | } | |
646 | ||
647 | if (fmt_type == UAC_FORMAT_TYPE_III) { | |
e5779998 DM |
648 | /* FIXME: the format type is really IECxxx |
649 | * but we give normal PCM format to get the existing | |
650 | * apps working... | |
651 | */ | |
652 | switch (chip->usb_id) { | |
653 | ||
654 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
655 | if (chip->setup == 0x00 && | |
656 | fp->altsetting == 6) | |
657 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; | |
658 | else | |
659 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
660 | break; | |
661 | default: | |
662 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
663 | } | |
74c34ca1 | 664 | fp->formats = pcm_format_to_bits(pcm_format); |
e5779998 | 665 | } else { |
9a2fe9b8 | 666 | fp->formats = parse_audio_format_i_type(chip, fp, format, _fmt); |
29088fef | 667 | if (!fp->formats) |
8ad10dc6 | 668 | return -EINVAL; |
e5779998 DM |
669 | } |
670 | ||
e5779998 DM |
671 | /* gather possible sample rates */ |
672 | /* audio class v1 reports possible sample rates as part of the | |
673 | * proprietary class specific descriptor. | |
674 | * audio class v2 uses class specific EP0 range requests for that. | |
675 | */ | |
8f898e92 | 676 | switch (fp->protocol) { |
a2acad82 | 677 | default: |
9a2fe9b8 RB |
678 | case UAC_VERSION_1: { |
679 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
680 | ||
e5779998 | 681 | fp->channels = fmt->bNrChannels; |
74754f97 | 682 | ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7); |
e5779998 | 683 | break; |
9a2fe9b8 | 684 | } |
e5779998 | 685 | case UAC_VERSION_2: |
9a2fe9b8 | 686 | case UAC_VERSION_3: { |
e5779998 | 687 | /* fp->channels is already set in this case */ |
9a2fe9b8 | 688 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
689 | break; |
690 | } | |
9a2fe9b8 | 691 | } |
e5779998 DM |
692 | |
693 | if (fp->channels < 1) { | |
0ba41d91 TI |
694 | usb_audio_err(chip, |
695 | "%u:%d : invalid channels %d\n", | |
696 | fp->iface, fp->altsetting, fp->channels); | |
8ad10dc6 | 697 | return -EINVAL; |
e5779998 DM |
698 | } |
699 | ||
700 | return ret; | |
701 | } | |
702 | ||
703 | /* | |
704 | * parse the format type II descriptor | |
705 | */ | |
706 | static int parse_audio_format_ii(struct snd_usb_audio *chip, | |
707 | struct audioformat *fp, | |
9a2fe9b8 | 708 | u64 format, void *_fmt) |
e5779998 DM |
709 | { |
710 | int brate, framesize, ret; | |
e5779998 DM |
711 | |
712 | switch (format) { | |
713 | case UAC_FORMAT_TYPE_II_AC3: | |
714 | /* FIXME: there is no AC3 format defined yet */ | |
015eb0b0 CL |
715 | // fp->formats = SNDRV_PCM_FMTBIT_AC3; |
716 | fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */ | |
e5779998 DM |
717 | break; |
718 | case UAC_FORMAT_TYPE_II_MPEG: | |
015eb0b0 | 719 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
720 | break; |
721 | default: | |
0ba41d91 | 722 | usb_audio_info(chip, |
9a2fe9b8 | 723 | "%u:%d : unknown format tag %#llx is detected. processed as MPEG.\n", |
0ba41d91 | 724 | fp->iface, fp->altsetting, format); |
015eb0b0 | 725 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
726 | break; |
727 | } | |
728 | ||
729 | fp->channels = 1; | |
730 | ||
8f898e92 | 731 | switch (fp->protocol) { |
a2acad82 | 732 | default: |
e5779998 DM |
733 | case UAC_VERSION_1: { |
734 | struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; | |
735 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
736 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 737 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 DM |
738 | fp->frame_size = framesize; |
739 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ | |
740 | break; | |
741 | } | |
742 | case UAC_VERSION_2: { | |
743 | struct uac_format_type_ii_ext_descriptor *fmt = _fmt; | |
744 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
745 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 746 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 | 747 | fp->frame_size = framesize; |
9a2fe9b8 | 748 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
749 | break; |
750 | } | |
751 | } | |
752 | ||
753 | return ret; | |
754 | } | |
755 | ||
2fcdb06d | 756 | int snd_usb_parse_audio_format(struct snd_usb_audio *chip, |
9a2fe9b8 | 757 | struct audioformat *fp, u64 format, |
2fcdb06d | 758 | struct uac_format_type_i_continuous_descriptor *fmt, |
8f898e92 | 759 | int stream) |
e5779998 DM |
760 | { |
761 | int err; | |
762 | ||
74754f97 | 763 | switch (fmt->bFormatType) { |
e5779998 DM |
764 | case UAC_FORMAT_TYPE_I: |
765 | case UAC_FORMAT_TYPE_III: | |
8f898e92 | 766 | err = parse_audio_format_i(chip, fp, format, fmt); |
e5779998 DM |
767 | break; |
768 | case UAC_FORMAT_TYPE_II: | |
8f898e92 | 769 | err = parse_audio_format_ii(chip, fp, format, fmt); |
e5779998 DM |
770 | break; |
771 | default: | |
0ba41d91 TI |
772 | usb_audio_info(chip, |
773 | "%u:%d : format type %d is not supported yet\n", | |
774 | fp->iface, fp->altsetting, | |
775 | fmt->bFormatType); | |
8d091242 | 776 | return -ENOTSUPP; |
e5779998 | 777 | } |
74754f97 | 778 | fp->fmt_type = fmt->bFormatType; |
e5779998 DM |
779 | if (err < 0) |
780 | return err; | |
781 | #if 1 | |
782 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ | |
783 | /* extigy apparently supports sample rates other than 48k | |
784 | * but not in ordinary way. so we enable only 48k atm. | |
785 | */ | |
786 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || | |
787 | chip->usb_id == USB_ID(0x041e, 0x3020) || | |
788 | chip->usb_id == USB_ID(0x041e, 0x3061)) { | |
74754f97 | 789 | if (fmt->bFormatType == UAC_FORMAT_TYPE_I && |
e5779998 DM |
790 | fp->rates != SNDRV_PCM_RATE_48000 && |
791 | fp->rates != SNDRV_PCM_RATE_96000) | |
8d091242 | 792 | return -ENOTSUPP; |
e5779998 DM |
793 | } |
794 | #endif | |
795 | return 0; | |
796 | } | |
797 | ||
9a2fe9b8 RB |
798 | int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip, |
799 | struct audioformat *fp, | |
800 | struct uac3_as_header_descriptor *as, | |
801 | int stream) | |
802 | { | |
803 | u64 format = le64_to_cpu(as->bmFormats); | |
804 | int err; | |
805 | ||
806 | /* | |
807 | * Type I format bits are D0..D6 | |
808 | * This test works because type IV is not supported | |
809 | */ | |
810 | if (format & 0x7f) | |
811 | fp->fmt_type = UAC_FORMAT_TYPE_I; | |
812 | else | |
813 | fp->fmt_type = UAC_FORMAT_TYPE_III; | |
814 | ||
815 | err = parse_audio_format_i(chip, fp, format, as); | |
816 | if (err < 0) | |
817 | return err; | |
818 | ||
819 | return 0; | |
820 | } |