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 */ |
aecc19ec | 226 | /* Ozone Z90 USB C-Media, too */ |
e5779998 DM |
227 | if (rate == 48000 && nr_rates == 1 && |
228 | (chip->usb_id == USB_ID(0x0d8c, 0x0201) || | |
8129e79e | 229 | chip->usb_id == USB_ID(0x0d8c, 0x0102) || |
aecc19ec | 230 | chip->usb_id == USB_ID(0x0d8c, 0x0078) || |
8129e79e | 231 | chip->usb_id == USB_ID(0x0ccd, 0x00b1)) && |
e5779998 DM |
232 | fp->altsetting == 5 && fp->maxpacksize == 392) |
233 | rate = 96000; | |
8c4b79cf PH |
234 | /* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */ |
235 | if (rate == 16000 && | |
236 | (chip->usb_id == USB_ID(0x041e, 0x4064) || | |
237 | chip->usb_id == USB_ID(0x041e, 0x4068))) | |
e5779998 DM |
238 | rate = 8000; |
239 | ||
13ee0336 | 240 | fp->rate_table[fp->nr_rates++] = rate; |
e5779998 DM |
241 | } |
242 | if (!fp->nr_rates) { | |
7ec827b9 TI |
243 | usb_audio_info(chip, |
244 | "%u:%d: All rates were zero\n", | |
245 | fp->iface, fp->altsetting); | |
8ad10dc6 | 246 | return -EINVAL; |
e5779998 | 247 | } |
13ee0336 | 248 | set_rate_table_min_max(fp); |
e5779998 DM |
249 | } else { |
250 | /* continuous rates */ | |
251 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
252 | fp->rate_min = combine_triple(&fmt[offset + 1]); | |
253 | fp->rate_max = combine_triple(&fmt[offset + 4]); | |
254 | } | |
74f73476 TI |
255 | |
256 | /* Jabra Evolve 65 headset */ | |
257 | if (chip->usb_id == USB_ID(0x0b0e, 0x030b)) { | |
258 | /* only 48kHz for playback while keeping 16kHz for capture */ | |
259 | if (fp->nr_rates != 1) | |
260 | return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); | |
261 | } | |
262 | ||
e5779998 DM |
263 | return 0; |
264 | } | |
265 | ||
8dc5efe3 NK |
266 | |
267 | /* | |
268 | * Presonus Studio 1810c supports a limited set of sampling | |
269 | * rates per altsetting but reports the full set each time. | |
270 | * If we don't filter out the unsupported rates and attempt | |
271 | * to configure the card, it will hang refusing to do any | |
272 | * further audio I/O until a hard reset is performed. | |
273 | * | |
274 | * The list of supported rates per altsetting (set of available | |
275 | * I/O channels) is described in the owner's manual, section 2.2. | |
276 | */ | |
277 | static bool s1810c_valid_sample_rate(struct audioformat *fp, | |
278 | unsigned int rate) | |
279 | { | |
280 | switch (fp->altsetting) { | |
281 | case 1: | |
282 | /* All ADAT ports available */ | |
283 | return rate <= 48000; | |
284 | case 2: | |
285 | /* Half of ADAT ports available */ | |
286 | return (rate == 88200 || rate == 96000); | |
287 | case 3: | |
288 | /* Analog I/O only (no S/PDIF nor ADAT) */ | |
289 | return rate >= 176400; | |
290 | default: | |
291 | return false; | |
292 | } | |
293 | return false; | |
294 | } | |
295 | ||
1c826792 AT |
296 | /* |
297 | * Many Focusrite devices supports a limited set of sampling rates per | |
298 | * altsetting. Maximum rate is exposed in the last 4 bytes of Format Type | |
299 | * descriptor which has a non-standard bLength = 10. | |
300 | */ | |
301 | static bool focusrite_valid_sample_rate(struct snd_usb_audio *chip, | |
302 | struct audioformat *fp, | |
303 | unsigned int rate) | |
304 | { | |
305 | struct usb_interface *iface; | |
306 | struct usb_host_interface *alts; | |
307 | unsigned char *fmt; | |
308 | unsigned int max_rate; | |
309 | ||
310 | iface = usb_ifnum_to_if(chip->dev, fp->iface); | |
311 | if (!iface) | |
312 | return true; | |
313 | ||
314 | alts = &iface->altsetting[fp->altset_idx]; | |
315 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, | |
316 | NULL, UAC_FORMAT_TYPE); | |
317 | if (!fmt) | |
318 | return true; | |
319 | ||
320 | if (fmt[0] == 10) { /* bLength */ | |
321 | max_rate = combine_quad(&fmt[6]); | |
322 | ||
323 | /* Validate max rate */ | |
324 | if (max_rate != 48000 && | |
325 | max_rate != 96000 && | |
326 | max_rate != 192000 && | |
327 | max_rate != 384000) { | |
328 | ||
329 | usb_audio_info(chip, | |
330 | "%u:%d : unexpected max rate: %u\n", | |
331 | fp->iface, fp->altsetting, max_rate); | |
332 | ||
333 | return true; | |
334 | } | |
335 | ||
336 | return rate <= max_rate; | |
337 | } | |
338 | ||
339 | return true; | |
340 | } | |
341 | ||
67c10366 DM |
342 | /* |
343 | * Helper function to walk the array of sample rate triplets reported by | |
344 | * the device. The problem is that we need to parse whole array first to | |
345 | * get to know how many sample rates we have to expect. | |
346 | * Then fp->rate_table can be allocated and filled. | |
347 | */ | |
0ba41d91 TI |
348 | static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip, |
349 | struct audioformat *fp, int nr_triplets, | |
67c10366 DM |
350 | const unsigned char *data) |
351 | { | |
352 | int i, nr_rates = 0; | |
353 | ||
67c10366 DM |
354 | for (i = 0; i < nr_triplets; i++) { |
355 | int min = combine_quad(&data[2 + 12 * i]); | |
356 | int max = combine_quad(&data[6 + 12 * i]); | |
357 | int res = combine_quad(&data[10 + 12 * i]); | |
4fa0e81b | 358 | unsigned int rate; |
67c10366 DM |
359 | |
360 | if ((max < 0) || (min < 0) || (res < 0) || (max < min)) | |
361 | continue; | |
362 | ||
363 | /* | |
364 | * for ranges with res == 1, we announce a continuous sample | |
365 | * rate range, and this function should return 0 for no further | |
366 | * parsing. | |
367 | */ | |
368 | if (res == 1) { | |
369 | fp->rate_min = min; | |
370 | fp->rate_max = max; | |
371 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
372 | return 0; | |
373 | } | |
374 | ||
375 | for (rate = min; rate <= max; rate += res) { | |
8dc5efe3 NK |
376 | |
377 | /* Filter out invalid rates on Presonus Studio 1810c */ | |
378 | if (chip->usb_id == USB_ID(0x0194f, 0x010c) && | |
379 | !s1810c_valid_sample_rate(fp, rate)) | |
380 | goto skip_rate; | |
381 | ||
1c826792 AT |
382 | /* Filter out invalid rates on Focusrite devices */ |
383 | if (USB_ID_VENDOR(chip->usb_id) == 0x1235 && | |
384 | !focusrite_valid_sample_rate(chip, fp, rate)) | |
385 | goto skip_rate; | |
386 | ||
67c10366 DM |
387 | if (fp->rate_table) |
388 | fp->rate_table[nr_rates] = rate; | |
67c10366 | 389 | nr_rates++; |
8866f405 | 390 | if (nr_rates >= MAX_NR_RATES) { |
0ba41d91 | 391 | usb_audio_err(chip, "invalid uac2 rates\n"); |
4fa0e81b XW |
392 | break; |
393 | } | |
67c10366 | 394 | |
8dc5efe3 | 395 | skip_rate: |
67c10366 DM |
396 | /* avoid endless loop */ |
397 | if (res == 0) | |
398 | break; | |
399 | } | |
400 | } | |
401 | ||
402 | return nr_rates; | |
403 | } | |
404 | ||
8abf41dc CS |
405 | /* Line6 Helix series and the Rode Rodecaster Pro don't support the |
406 | * UAC2_CS_RANGE usb function call. Return a static table of known | |
407 | * clock rates. | |
d4bd3053 NL |
408 | */ |
409 | static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip, | |
410 | struct audioformat *fp) | |
411 | { | |
412 | switch (chip->usb_id) { | |
8be03a71 TI |
413 | case USB_ID(0x0e41, 0x4241): /* Line6 Helix */ |
414 | case USB_ID(0x0e41, 0x4242): /* Line6 Helix Rack */ | |
415 | case USB_ID(0x0e41, 0x4244): /* Line6 Helix LT */ | |
416 | case USB_ID(0x0e41, 0x4246): /* Line6 HX-Stomp */ | |
7da4c510 | 417 | case USB_ID(0x0e41, 0x4247): /* Line6 Pod Go */ |
9b132f27 TI |
418 | case USB_ID(0x0e41, 0x4248): /* Line6 Helix >= fw 2.82 */ |
419 | case USB_ID(0x0e41, 0x4249): /* Line6 Helix Rack >= fw 2.82 */ | |
420 | case USB_ID(0x0e41, 0x424a): /* Line6 Helix LT >= fw 2.82 */ | |
8abf41dc | 421 | case USB_ID(0x19f7, 0x0011): /* Rode Rodecaster Pro */ |
74f73476 | 422 | return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); |
d4bd3053 NL |
423 | } |
424 | ||
425 | return -ENODEV; | |
426 | } | |
427 | ||
93db51d0 TI |
428 | /* check whether the given altsetting is supported for the already set rate */ |
429 | static bool check_valid_altsetting_v2v3(struct snd_usb_audio *chip, int iface, | |
430 | int altsetting) | |
431 | { | |
432 | struct usb_device *dev = chip->dev; | |
433 | __le64 raw_data = 0; | |
434 | u64 data; | |
435 | int err; | |
436 | ||
437 | /* we assume 64bit is enough for any altsettings */ | |
438 | if (snd_BUG_ON(altsetting >= 64 - 8)) | |
439 | return false; | |
440 | ||
51cb8e20 | 441 | err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, |
93db51d0 TI |
442 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
443 | UAC2_AS_VAL_ALT_SETTINGS << 8, | |
444 | iface, &raw_data, sizeof(raw_data)); | |
445 | if (err < 0) | |
446 | return false; | |
447 | ||
448 | data = le64_to_cpu(raw_data); | |
449 | /* first byte contains the bitmap size */ | |
450 | if ((data & 0xff) * 8 < altsetting) | |
451 | return false; | |
452 | if (data & (1ULL << (altsetting + 8))) | |
453 | return true; | |
454 | ||
455 | return false; | |
456 | } | |
457 | ||
458 | /* | |
459 | * Validate each sample rate with the altsetting | |
460 | * Rebuild the rate table if only partial values are valid | |
461 | */ | |
462 | static int validate_sample_rate_table_v2v3(struct snd_usb_audio *chip, | |
463 | struct audioformat *fp, | |
464 | int clock) | |
465 | { | |
466 | struct usb_device *dev = chip->dev; | |
467 | unsigned int *table; | |
468 | unsigned int nr_rates; | |
93db51d0 TI |
469 | int i, err; |
470 | ||
fe773b87 TI |
471 | /* performing the rate verification may lead to unexpected USB bus |
472 | * behavior afterwards by some unknown reason. Do this only for the | |
473 | * known devices. | |
474 | */ | |
8bfe17ad | 475 | if (!(chip->quirk_flags & QUIRK_FLAG_VALIDATE_RATES)) |
fe773b87 | 476 | return 0; /* don't perform the validation as default */ |
fe773b87 | 477 | |
93db51d0 TI |
478 | table = kcalloc(fp->nr_rates, sizeof(*table), GFP_KERNEL); |
479 | if (!table) | |
480 | return -ENOMEM; | |
481 | ||
482 | /* clear the interface altsetting at first */ | |
483 | usb_set_interface(dev, fp->iface, 0); | |
484 | ||
485 | nr_rates = 0; | |
486 | for (i = 0; i < fp->nr_rates; i++) { | |
487 | err = snd_usb_set_sample_rate_v2v3(chip, fp, clock, | |
488 | fp->rate_table[i]); | |
489 | if (err < 0) | |
490 | continue; | |
491 | ||
13ee0336 | 492 | if (check_valid_altsetting_v2v3(chip, fp->iface, fp->altsetting)) |
93db51d0 | 493 | table[nr_rates++] = fp->rate_table[i]; |
93db51d0 TI |
494 | } |
495 | ||
496 | if (!nr_rates) { | |
497 | usb_audio_dbg(chip, | |
498 | "No valid sample rate available for %d:%d, assuming a firmware bug\n", | |
499 | fp->iface, fp->altsetting); | |
500 | nr_rates = fp->nr_rates; /* continue as is */ | |
501 | } | |
502 | ||
503 | if (fp->nr_rates == nr_rates) { | |
504 | kfree(table); | |
505 | return 0; | |
506 | } | |
507 | ||
508 | kfree(fp->rate_table); | |
509 | fp->rate_table = table; | |
510 | fp->nr_rates = nr_rates; | |
93db51d0 TI |
511 | return 0; |
512 | } | |
513 | ||
e5779998 DM |
514 | /* |
515 | * parse the format descriptor and stores the possible sample rates | |
9a2fe9b8 | 516 | * on the audioformat table (audio class v2 and v3). |
e5779998 | 517 | */ |
9a2fe9b8 | 518 | static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip, |
3d8d4dcf | 519 | struct audioformat *fp) |
e5779998 DM |
520 | { |
521 | struct usb_device *dev = chip->dev; | |
522 | unsigned char tmp[2], *data; | |
d4bd3053 | 523 | int nr_triplets, data_size, ret = 0, ret_l6; |
9f35a312 | 524 | int clock = snd_usb_clock_find_source(chip, fp, false); |
e5779998 | 525 | |
d07140ba | 526 | if (clock < 0) { |
0ba41d91 TI |
527 | dev_err(&dev->dev, |
528 | "%s(): unable to find clock source (clock %d)\n", | |
d07140ba DM |
529 | __func__, clock); |
530 | goto err; | |
531 | } | |
532 | ||
e5779998 DM |
533 | /* get the number of sample rates first by only fetching 2 bytes */ |
534 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
535 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, | |
11bcbc44 DM |
536 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
537 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 538 | tmp, sizeof(tmp)); |
e5779998 DM |
539 | |
540 | if (ret < 0) { | |
d4bd3053 NL |
541 | /* line6 helix devices don't support UAC2_CS_CONTROL_SAM_FREQ call */ |
542 | ret_l6 = line6_parse_audio_format_rates_quirk(chip, fp); | |
543 | if (ret_l6 == -ENODEV) { | |
544 | /* no line6 device found continue showing the error */ | |
545 | dev_err(&dev->dev, | |
546 | "%s(): unable to retrieve number of sample rates (clock %d)\n", | |
547 | __func__, clock); | |
548 | goto err; | |
549 | } | |
550 | if (ret_l6 == 0) { | |
551 | dev_info(&dev->dev, | |
552 | "%s(): unable to retrieve number of sample rates: set it to a predefined value (clock %d).\n", | |
79f920fb | 553 | __func__, clock); |
d4bd3053 NL |
554 | return 0; |
555 | } | |
556 | ret = ret_l6; | |
e5779998 DM |
557 | goto err; |
558 | } | |
559 | ||
67c10366 DM |
560 | nr_triplets = (tmp[1] << 8) | tmp[0]; |
561 | data_size = 2 + 12 * nr_triplets; | |
e5779998 DM |
562 | data = kzalloc(data_size, GFP_KERNEL); |
563 | if (!data) { | |
564 | ret = -ENOMEM; | |
565 | goto err; | |
566 | } | |
567 | ||
568 | /* now get the full information */ | |
569 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
79f920fb | 570 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
11bcbc44 DM |
571 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
572 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 573 | data, data_size); |
e5779998 DM |
574 | |
575 | if (ret < 0) { | |
0ba41d91 TI |
576 | dev_err(&dev->dev, |
577 | "%s(): unable to retrieve sample rate range (clock %d)\n", | |
79f920fb | 578 | __func__, clock); |
e5779998 DM |
579 | ret = -EINVAL; |
580 | goto err_free; | |
581 | } | |
582 | ||
67c10366 DM |
583 | /* Call the triplet parser, and make sure fp->rate_table is NULL. |
584 | * We just use the return value to know how many sample rates we | |
585 | * will have to deal with. */ | |
586 | kfree(fp->rate_table); | |
587 | fp->rate_table = NULL; | |
0ba41d91 | 588 | fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
67c10366 DM |
589 | |
590 | if (fp->nr_rates == 0) { | |
591 | /* SNDRV_PCM_RATE_CONTINUOUS */ | |
592 | ret = 0; | |
593 | goto err_free; | |
594 | } | |
595 | ||
6da2ec56 | 596 | fp->rate_table = kmalloc_array(fp->nr_rates, sizeof(int), GFP_KERNEL); |
e5779998 DM |
597 | if (!fp->rate_table) { |
598 | ret = -ENOMEM; | |
599 | goto err_free; | |
600 | } | |
601 | ||
67c10366 DM |
602 | /* Call the triplet parser again, but this time, fp->rate_table is |
603 | * allocated, so the rates will be stored */ | |
0ba41d91 | 604 | parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
e5779998 | 605 | |
93db51d0 | 606 | ret = validate_sample_rate_table_v2v3(chip, fp, clock); |
13ee0336 TI |
607 | if (ret < 0) |
608 | goto err_free; | |
609 | ||
610 | set_rate_table_min_max(fp); | |
93db51d0 | 611 | |
e5779998 DM |
612 | err_free: |
613 | kfree(data); | |
614 | err: | |
615 | return ret; | |
616 | } | |
617 | ||
618 | /* | |
619 | * parse the format type I and III descriptors | |
620 | */ | |
621 | static int parse_audio_format_i(struct snd_usb_audio *chip, | |
9a2fe9b8 RB |
622 | struct audioformat *fp, u64 format, |
623 | void *_fmt) | |
e5779998 | 624 | { |
74c34ca1 | 625 | snd_pcm_format_t pcm_format; |
9a2fe9b8 | 626 | unsigned int fmt_type; |
74c34ca1 | 627 | int ret; |
e5779998 | 628 | |
9a2fe9b8 RB |
629 | switch (fp->protocol) { |
630 | default: | |
631 | case UAC_VERSION_1: | |
632 | case UAC_VERSION_2: { | |
633 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
634 | ||
635 | fmt_type = fmt->bFormatType; | |
636 | break; | |
637 | } | |
638 | case UAC_VERSION_3: { | |
639 | /* fp->fmt_type is already set in this case */ | |
640 | fmt_type = fp->fmt_type; | |
641 | break; | |
642 | } | |
643 | } | |
644 | ||
645 | if (fmt_type == UAC_FORMAT_TYPE_III) { | |
e5779998 DM |
646 | /* FIXME: the format type is really IECxxx |
647 | * but we give normal PCM format to get the existing | |
648 | * apps working... | |
649 | */ | |
650 | switch (chip->usb_id) { | |
651 | ||
652 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
653 | if (chip->setup == 0x00 && | |
654 | fp->altsetting == 6) | |
655 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; | |
656 | else | |
657 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
658 | break; | |
659 | default: | |
660 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
661 | } | |
74c34ca1 | 662 | fp->formats = pcm_format_to_bits(pcm_format); |
e5779998 | 663 | } else { |
9a2fe9b8 | 664 | fp->formats = parse_audio_format_i_type(chip, fp, format, _fmt); |
29088fef | 665 | if (!fp->formats) |
8ad10dc6 | 666 | return -EINVAL; |
e5779998 DM |
667 | } |
668 | ||
e5779998 DM |
669 | /* gather possible sample rates */ |
670 | /* audio class v1 reports possible sample rates as part of the | |
671 | * proprietary class specific descriptor. | |
672 | * audio class v2 uses class specific EP0 range requests for that. | |
673 | */ | |
8f898e92 | 674 | switch (fp->protocol) { |
a2acad82 | 675 | default: |
9a2fe9b8 RB |
676 | case UAC_VERSION_1: { |
677 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
678 | ||
e5779998 | 679 | fp->channels = fmt->bNrChannels; |
74754f97 | 680 | ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7); |
e5779998 | 681 | break; |
9a2fe9b8 | 682 | } |
e5779998 | 683 | case UAC_VERSION_2: |
9a2fe9b8 | 684 | case UAC_VERSION_3: { |
e5779998 | 685 | /* fp->channels is already set in this case */ |
9a2fe9b8 | 686 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
687 | break; |
688 | } | |
9a2fe9b8 | 689 | } |
e5779998 DM |
690 | |
691 | if (fp->channels < 1) { | |
0ba41d91 TI |
692 | usb_audio_err(chip, |
693 | "%u:%d : invalid channels %d\n", | |
694 | fp->iface, fp->altsetting, fp->channels); | |
8ad10dc6 | 695 | return -EINVAL; |
e5779998 DM |
696 | } |
697 | ||
698 | return ret; | |
699 | } | |
700 | ||
701 | /* | |
702 | * parse the format type II descriptor | |
703 | */ | |
704 | static int parse_audio_format_ii(struct snd_usb_audio *chip, | |
705 | struct audioformat *fp, | |
9a2fe9b8 | 706 | u64 format, void *_fmt) |
e5779998 DM |
707 | { |
708 | int brate, framesize, ret; | |
e5779998 DM |
709 | |
710 | switch (format) { | |
711 | case UAC_FORMAT_TYPE_II_AC3: | |
712 | /* FIXME: there is no AC3 format defined yet */ | |
015eb0b0 CL |
713 | // fp->formats = SNDRV_PCM_FMTBIT_AC3; |
714 | fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */ | |
e5779998 DM |
715 | break; |
716 | case UAC_FORMAT_TYPE_II_MPEG: | |
015eb0b0 | 717 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
718 | break; |
719 | default: | |
0ba41d91 | 720 | usb_audio_info(chip, |
9a2fe9b8 | 721 | "%u:%d : unknown format tag %#llx is detected. processed as MPEG.\n", |
0ba41d91 | 722 | fp->iface, fp->altsetting, format); |
015eb0b0 | 723 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
724 | break; |
725 | } | |
726 | ||
727 | fp->channels = 1; | |
728 | ||
8f898e92 | 729 | switch (fp->protocol) { |
a2acad82 | 730 | default: |
e5779998 DM |
731 | case UAC_VERSION_1: { |
732 | struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; | |
733 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
734 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 735 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 DM |
736 | fp->frame_size = framesize; |
737 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ | |
738 | break; | |
739 | } | |
740 | case UAC_VERSION_2: { | |
741 | struct uac_format_type_ii_ext_descriptor *fmt = _fmt; | |
742 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
743 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 744 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 | 745 | fp->frame_size = framesize; |
9a2fe9b8 | 746 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
747 | break; |
748 | } | |
749 | } | |
750 | ||
751 | return ret; | |
752 | } | |
753 | ||
2fcdb06d | 754 | int snd_usb_parse_audio_format(struct snd_usb_audio *chip, |
9a2fe9b8 | 755 | struct audioformat *fp, u64 format, |
2fcdb06d | 756 | struct uac_format_type_i_continuous_descriptor *fmt, |
8f898e92 | 757 | int stream) |
e5779998 DM |
758 | { |
759 | int err; | |
760 | ||
74754f97 | 761 | switch (fmt->bFormatType) { |
e5779998 DM |
762 | case UAC_FORMAT_TYPE_I: |
763 | case UAC_FORMAT_TYPE_III: | |
8f898e92 | 764 | err = parse_audio_format_i(chip, fp, format, fmt); |
e5779998 DM |
765 | break; |
766 | case UAC_FORMAT_TYPE_II: | |
8f898e92 | 767 | err = parse_audio_format_ii(chip, fp, format, fmt); |
e5779998 DM |
768 | break; |
769 | default: | |
0ba41d91 TI |
770 | usb_audio_info(chip, |
771 | "%u:%d : format type %d is not supported yet\n", | |
772 | fp->iface, fp->altsetting, | |
773 | fmt->bFormatType); | |
8d091242 | 774 | return -ENOTSUPP; |
e5779998 | 775 | } |
74754f97 | 776 | fp->fmt_type = fmt->bFormatType; |
e5779998 DM |
777 | if (err < 0) |
778 | return err; | |
779 | #if 1 | |
780 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ | |
781 | /* extigy apparently supports sample rates other than 48k | |
782 | * but not in ordinary way. so we enable only 48k atm. | |
783 | */ | |
784 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || | |
785 | chip->usb_id == USB_ID(0x041e, 0x3020) || | |
786 | chip->usb_id == USB_ID(0x041e, 0x3061)) { | |
74754f97 | 787 | if (fmt->bFormatType == UAC_FORMAT_TYPE_I && |
e5779998 DM |
788 | fp->rates != SNDRV_PCM_RATE_48000 && |
789 | fp->rates != SNDRV_PCM_RATE_96000) | |
8d091242 | 790 | return -ENOTSUPP; |
e5779998 DM |
791 | } |
792 | #endif | |
793 | return 0; | |
794 | } | |
795 | ||
9a2fe9b8 RB |
796 | int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip, |
797 | struct audioformat *fp, | |
798 | struct uac3_as_header_descriptor *as, | |
799 | int stream) | |
800 | { | |
801 | u64 format = le64_to_cpu(as->bmFormats); | |
802 | int err; | |
803 | ||
804 | /* | |
805 | * Type I format bits are D0..D6 | |
806 | * This test works because type IV is not supported | |
807 | */ | |
808 | if (format & 0x7f) | |
809 | fp->fmt_type = UAC_FORMAT_TYPE_I; | |
810 | else | |
811 | fp->fmt_type = UAC_FORMAT_TYPE_III; | |
812 | ||
813 | err = parse_audio_format_i(chip, fp, format, as); | |
814 | if (err < 0) | |
815 | return err; | |
816 | ||
817 | return 0; | |
818 | } |