Commit | Line | Data |
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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; |
fa4e7a6f TI |
42 | if (format >= 64) { |
43 | usb_audio_info(chip, | |
44 | "%u:%d: invalid format type 0x%llx is detected, processed as PCM\n", | |
45 | fp->iface, fp->altsetting, format); | |
46 | format = UAC_FORMAT_TYPE_I_PCM; | |
47 | } | |
e5779998 DM |
48 | sample_width = fmt->bBitResolution; |
49 | sample_bytes = fmt->bSubframeSize; | |
b44d419b | 50 | format = 1ULL << format; |
e5779998 DM |
51 | break; |
52 | } | |
53 | ||
54 | case UAC_VERSION_2: { | |
55 | struct uac_format_type_i_ext_descriptor *fmt = _fmt; | |
56 | sample_width = fmt->bBitResolution; | |
57 | sample_bytes = fmt->bSubslotSize; | |
717bfb5f | 58 | |
3a572d94 | 59 | if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) { |
717bfb5f | 60 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; |
3a572d94 JL |
61 | /* flag potentially raw DSD capable altsettings */ |
62 | fp->dsd_raw = true; | |
63 | } | |
717bfb5f | 64 | |
29088fef | 65 | format <<= 1; |
e5779998 DM |
66 | break; |
67 | } | |
9a2fe9b8 RB |
68 | case UAC_VERSION_3: { |
69 | struct uac3_as_header_descriptor *as = _fmt; | |
70 | ||
71 | sample_width = as->bBitResolution; | |
72 | sample_bytes = as->bSubslotSize; | |
73 | ||
74 | if (format & UAC3_FORMAT_TYPE_I_RAW_DATA) | |
75 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; | |
76 | ||
77 | format <<= 1; | |
78 | break; | |
79 | } | |
e5779998 DM |
80 | } |
81 | ||
c7a13264 JL |
82 | fp->fmt_bits = sample_width; |
83 | ||
717bfb5f DM |
84 | if ((pcm_formats == 0) && |
85 | (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) { | |
29088fef | 86 | /* some devices don't define this correctly... */ |
0ba41d91 TI |
87 | usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n", |
88 | fp->iface, fp->altsetting); | |
29088fef CL |
89 | format = 1 << UAC_FORMAT_TYPE_I_PCM; |
90 | } | |
91 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) { | |
6d1f2f60 TH |
92 | if (((chip->usb_id == USB_ID(0x0582, 0x0016)) || |
93 | /* Edirol SD-90 */ | |
94 | (chip->usb_id == USB_ID(0x0582, 0x000c))) && | |
95 | /* Roland SC-D70 */ | |
061b869e CL |
96 | sample_width == 24 && sample_bytes == 2) |
97 | sample_bytes = 3; | |
98 | else if (sample_width > sample_bytes * 8) { | |
0ba41d91 TI |
99 | usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n", |
100 | fp->iface, fp->altsetting, | |
101 | sample_width, sample_bytes); | |
e5779998 DM |
102 | } |
103 | /* check the format byte size */ | |
104 | switch (sample_bytes) { | |
105 | case 1: | |
29088fef | 106 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
e5779998 DM |
107 | break; |
108 | case 2: | |
109 | if (snd_usb_is_big_endian_format(chip, fp)) | |
29088fef | 110 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_BE; /* grrr, big endian!! */ |
e5779998 | 111 | else |
29088fef | 112 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_LE; |
e5779998 DM |
113 | break; |
114 | case 3: | |
115 | if (snd_usb_is_big_endian_format(chip, fp)) | |
29088fef | 116 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3BE; /* grrr, big endian!! */ |
e5779998 | 117 | else |
29088fef | 118 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3LE; |
e5779998 DM |
119 | break; |
120 | case 4: | |
29088fef | 121 | pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE; |
e5779998 DM |
122 | break; |
123 | default: | |
0ba41d91 TI |
124 | usb_audio_info(chip, |
125 | "%u:%d : unsupported sample bitwidth %d in %d bytes\n", | |
126 | fp->iface, fp->altsetting, | |
127 | sample_width, sample_bytes); | |
e5779998 DM |
128 | break; |
129 | } | |
29088fef CL |
130 | } |
131 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM8)) { | |
e5779998 DM |
132 | /* Dallas DS4201 workaround: it advertises U8 format, but really |
133 | supports S8. */ | |
134 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) | |
29088fef CL |
135 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
136 | else | |
137 | pcm_formats |= SNDRV_PCM_FMTBIT_U8; | |
138 | } | |
139 | if (format & (1 << UAC_FORMAT_TYPE_I_IEEE_FLOAT)) { | |
140 | pcm_formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; | |
141 | } | |
142 | if (format & (1 << UAC_FORMAT_TYPE_I_ALAW)) { | |
143 | pcm_formats |= SNDRV_PCM_FMTBIT_A_LAW; | |
144 | } | |
145 | if (format & (1 << UAC_FORMAT_TYPE_I_MULAW)) { | |
146 | pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW; | |
147 | } | |
148 | if (format & ~0x3f) { | |
0ba41d91 | 149 | usb_audio_info(chip, |
9a2fe9b8 | 150 | "%u:%d : unsupported format bits %#llx\n", |
0ba41d91 | 151 | fp->iface, fp->altsetting, format); |
e5779998 | 152 | } |
126825e7 DM |
153 | |
154 | pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes); | |
155 | ||
29088fef | 156 | return pcm_formats; |
e5779998 DM |
157 | } |
158 | ||
74f73476 TI |
159 | static int set_fixed_rate(struct audioformat *fp, int rate, int rate_bits) |
160 | { | |
161 | kfree(fp->rate_table); | |
162 | fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL); | |
163 | if (!fp->rate_table) | |
164 | return -ENOMEM; | |
165 | fp->nr_rates = 1; | |
166 | fp->rate_min = rate; | |
167 | fp->rate_max = rate; | |
168 | fp->rates = rate_bits; | |
169 | fp->rate_table[0] = rate; | |
170 | return 0; | |
171 | } | |
e5779998 | 172 | |
13ee0336 TI |
173 | /* set up rate_min, rate_max and rates from the rate table */ |
174 | static void set_rate_table_min_max(struct audioformat *fp) | |
175 | { | |
176 | unsigned int rate; | |
177 | int i; | |
178 | ||
179 | fp->rate_min = INT_MAX; | |
180 | fp->rate_max = 0; | |
181 | fp->rates = 0; | |
182 | for (i = 0; i < fp->nr_rates; i++) { | |
183 | rate = fp->rate_table[i]; | |
184 | fp->rate_min = min(fp->rate_min, rate); | |
185 | fp->rate_max = max(fp->rate_max, rate); | |
186 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); | |
187 | } | |
188 | } | |
189 | ||
e5779998 DM |
190 | /* |
191 | * parse the format descriptor and stores the possible sample rates | |
192 | * on the audioformat table (audio class v1). | |
193 | * | |
194 | * @dev: usb device | |
195 | * @fp: audioformat record | |
196 | * @fmt: the format descriptor | |
197 | * @offset: the start offset of descriptor pointing the rate type | |
198 | * (7 for type I and II, 8 for type II) | |
199 | */ | |
200 | static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp, | |
201 | unsigned char *fmt, int offset) | |
202 | { | |
203 | int nr_rates = fmt[offset]; | |
204 | ||
205 | if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { | |
0ba41d91 TI |
206 | usb_audio_err(chip, |
207 | "%u:%d : invalid UAC_FORMAT_TYPE desc\n", | |
208 | fp->iface, fp->altsetting); | |
8ad10dc6 | 209 | return -EINVAL; |
e5779998 DM |
210 | } |
211 | ||
212 | if (nr_rates) { | |
213 | /* | |
214 | * build the rate table and bitmap flags | |
215 | */ | |
216 | int r, idx; | |
217 | ||
6da2ec56 KC |
218 | fp->rate_table = kmalloc_array(nr_rates, sizeof(int), |
219 | GFP_KERNEL); | |
1bc00f32 | 220 | if (fp->rate_table == NULL) |
8ad10dc6 | 221 | return -ENOMEM; |
e5779998 DM |
222 | |
223 | fp->nr_rates = 0; | |
e5779998 DM |
224 | for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { |
225 | unsigned int rate = combine_triple(&fmt[idx]); | |
226 | if (!rate) | |
227 | continue; | |
228 | /* C-Media CM6501 mislabels its 96 kHz altsetting */ | |
8129e79e | 229 | /* Terratec Aureon 7.1 USB C-Media 6206, too */ |
aecc19ec | 230 | /* Ozone Z90 USB C-Media, too */ |
e5779998 DM |
231 | if (rate == 48000 && nr_rates == 1 && |
232 | (chip->usb_id == USB_ID(0x0d8c, 0x0201) || | |
8129e79e | 233 | chip->usb_id == USB_ID(0x0d8c, 0x0102) || |
aecc19ec | 234 | chip->usb_id == USB_ID(0x0d8c, 0x0078) || |
8129e79e | 235 | chip->usb_id == USB_ID(0x0ccd, 0x00b1)) && |
e5779998 DM |
236 | fp->altsetting == 5 && fp->maxpacksize == 392) |
237 | rate = 96000; | |
8c4b79cf PH |
238 | /* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */ |
239 | if (rate == 16000 && | |
240 | (chip->usb_id == USB_ID(0x041e, 0x4064) || | |
241 | chip->usb_id == USB_ID(0x041e, 0x4068))) | |
e5779998 DM |
242 | rate = 8000; |
243 | ||
13ee0336 | 244 | fp->rate_table[fp->nr_rates++] = rate; |
e5779998 DM |
245 | } |
246 | if (!fp->nr_rates) { | |
7ec827b9 TI |
247 | usb_audio_info(chip, |
248 | "%u:%d: All rates were zero\n", | |
249 | fp->iface, fp->altsetting); | |
8ad10dc6 | 250 | return -EINVAL; |
e5779998 | 251 | } |
13ee0336 | 252 | set_rate_table_min_max(fp); |
e5779998 DM |
253 | } else { |
254 | /* continuous rates */ | |
255 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
256 | fp->rate_min = combine_triple(&fmt[offset + 1]); | |
257 | fp->rate_max = combine_triple(&fmt[offset + 4]); | |
258 | } | |
74f73476 TI |
259 | |
260 | /* Jabra Evolve 65 headset */ | |
261 | if (chip->usb_id == USB_ID(0x0b0e, 0x030b)) { | |
262 | /* only 48kHz for playback while keeping 16kHz for capture */ | |
263 | if (fp->nr_rates != 1) | |
264 | return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); | |
265 | } | |
266 | ||
e5779998 DM |
267 | return 0; |
268 | } | |
269 | ||
8dc5efe3 NK |
270 | |
271 | /* | |
272 | * Presonus Studio 1810c supports a limited set of sampling | |
273 | * rates per altsetting but reports the full set each time. | |
274 | * If we don't filter out the unsupported rates and attempt | |
275 | * to configure the card, it will hang refusing to do any | |
276 | * further audio I/O until a hard reset is performed. | |
277 | * | |
278 | * The list of supported rates per altsetting (set of available | |
279 | * I/O channels) is described in the owner's manual, section 2.2. | |
280 | */ | |
281 | static bool s1810c_valid_sample_rate(struct audioformat *fp, | |
282 | unsigned int rate) | |
283 | { | |
284 | switch (fp->altsetting) { | |
285 | case 1: | |
286 | /* All ADAT ports available */ | |
287 | return rate <= 48000; | |
288 | case 2: | |
289 | /* Half of ADAT ports available */ | |
290 | return (rate == 88200 || rate == 96000); | |
291 | case 3: | |
292 | /* Analog I/O only (no S/PDIF nor ADAT) */ | |
293 | return rate >= 176400; | |
294 | default: | |
295 | return false; | |
296 | } | |
297 | return false; | |
298 | } | |
299 | ||
1c826792 AT |
300 | /* |
301 | * Many Focusrite devices supports a limited set of sampling rates per | |
302 | * altsetting. Maximum rate is exposed in the last 4 bytes of Format Type | |
303 | * descriptor which has a non-standard bLength = 10. | |
304 | */ | |
305 | static bool focusrite_valid_sample_rate(struct snd_usb_audio *chip, | |
306 | struct audioformat *fp, | |
307 | unsigned int rate) | |
308 | { | |
309 | struct usb_interface *iface; | |
310 | struct usb_host_interface *alts; | |
311 | unsigned char *fmt; | |
312 | unsigned int max_rate; | |
313 | ||
314 | iface = usb_ifnum_to_if(chip->dev, fp->iface); | |
315 | if (!iface) | |
316 | return true; | |
317 | ||
318 | alts = &iface->altsetting[fp->altset_idx]; | |
319 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, | |
320 | NULL, UAC_FORMAT_TYPE); | |
321 | if (!fmt) | |
322 | return true; | |
323 | ||
324 | if (fmt[0] == 10) { /* bLength */ | |
325 | max_rate = combine_quad(&fmt[6]); | |
326 | ||
327 | /* Validate max rate */ | |
328 | if (max_rate != 48000 && | |
329 | max_rate != 96000 && | |
330 | max_rate != 192000 && | |
331 | max_rate != 384000) { | |
332 | ||
333 | usb_audio_info(chip, | |
334 | "%u:%d : unexpected max rate: %u\n", | |
335 | fp->iface, fp->altsetting, max_rate); | |
336 | ||
337 | return true; | |
338 | } | |
339 | ||
340 | return rate <= max_rate; | |
341 | } | |
342 | ||
343 | return true; | |
344 | } | |
345 | ||
67c10366 DM |
346 | /* |
347 | * Helper function to walk the array of sample rate triplets reported by | |
348 | * the device. The problem is that we need to parse whole array first to | |
349 | * get to know how many sample rates we have to expect. | |
350 | * Then fp->rate_table can be allocated and filled. | |
351 | */ | |
0ba41d91 TI |
352 | static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip, |
353 | struct audioformat *fp, int nr_triplets, | |
67c10366 DM |
354 | const unsigned char *data) |
355 | { | |
356 | int i, nr_rates = 0; | |
357 | ||
67c10366 DM |
358 | for (i = 0; i < nr_triplets; i++) { |
359 | int min = combine_quad(&data[2 + 12 * i]); | |
360 | int max = combine_quad(&data[6 + 12 * i]); | |
361 | int res = combine_quad(&data[10 + 12 * i]); | |
4fa0e81b | 362 | unsigned int rate; |
67c10366 DM |
363 | |
364 | if ((max < 0) || (min < 0) || (res < 0) || (max < min)) | |
365 | continue; | |
366 | ||
367 | /* | |
368 | * for ranges with res == 1, we announce a continuous sample | |
369 | * rate range, and this function should return 0 for no further | |
370 | * parsing. | |
371 | */ | |
372 | if (res == 1) { | |
373 | fp->rate_min = min; | |
374 | fp->rate_max = max; | |
375 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
376 | return 0; | |
377 | } | |
378 | ||
379 | for (rate = min; rate <= max; rate += res) { | |
8dc5efe3 NK |
380 | |
381 | /* Filter out invalid rates on Presonus Studio 1810c */ | |
1e583aef | 382 | if (chip->usb_id == USB_ID(0x194f, 0x010c) && |
8dc5efe3 NK |
383 | !s1810c_valid_sample_rate(fp, rate)) |
384 | goto skip_rate; | |
385 | ||
1c826792 AT |
386 | /* Filter out invalid rates on Focusrite devices */ |
387 | if (USB_ID_VENDOR(chip->usb_id) == 0x1235 && | |
388 | !focusrite_valid_sample_rate(chip, fp, rate)) | |
389 | goto skip_rate; | |
390 | ||
67c10366 DM |
391 | if (fp->rate_table) |
392 | fp->rate_table[nr_rates] = rate; | |
67c10366 | 393 | nr_rates++; |
8866f405 | 394 | if (nr_rates >= MAX_NR_RATES) { |
0ba41d91 | 395 | usb_audio_err(chip, "invalid uac2 rates\n"); |
4fa0e81b XW |
396 | break; |
397 | } | |
67c10366 | 398 | |
8dc5efe3 | 399 | skip_rate: |
67c10366 DM |
400 | /* avoid endless loop */ |
401 | if (res == 0) | |
402 | break; | |
403 | } | |
404 | } | |
405 | ||
406 | return nr_rates; | |
407 | } | |
408 | ||
8abf41dc CS |
409 | /* Line6 Helix series and the Rode Rodecaster Pro don't support the |
410 | * UAC2_CS_RANGE usb function call. Return a static table of known | |
411 | * clock rates. | |
d4bd3053 NL |
412 | */ |
413 | static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip, | |
414 | struct audioformat *fp) | |
415 | { | |
416 | switch (chip->usb_id) { | |
8be03a71 TI |
417 | case USB_ID(0x0e41, 0x4241): /* Line6 Helix */ |
418 | case USB_ID(0x0e41, 0x4242): /* Line6 Helix Rack */ | |
419 | case USB_ID(0x0e41, 0x4244): /* Line6 Helix LT */ | |
420 | case USB_ID(0x0e41, 0x4246): /* Line6 HX-Stomp */ | |
8f27b689 | 421 | case USB_ID(0x0e41, 0x4253): /* Line6 HX-Stomp XL */ |
7da4c510 | 422 | case USB_ID(0x0e41, 0x4247): /* Line6 Pod Go */ |
9b132f27 TI |
423 | case USB_ID(0x0e41, 0x4248): /* Line6 Helix >= fw 2.82 */ |
424 | case USB_ID(0x0e41, 0x4249): /* Line6 Helix Rack >= fw 2.82 */ | |
425 | case USB_ID(0x0e41, 0x424a): /* Line6 Helix LT >= fw 2.82 */ | |
8abf41dc | 426 | case USB_ID(0x19f7, 0x0011): /* Rode Rodecaster Pro */ |
74f73476 | 427 | return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); |
d4bd3053 NL |
428 | } |
429 | ||
430 | return -ENODEV; | |
431 | } | |
432 | ||
93db51d0 TI |
433 | /* check whether the given altsetting is supported for the already set rate */ |
434 | static bool check_valid_altsetting_v2v3(struct snd_usb_audio *chip, int iface, | |
435 | int altsetting) | |
436 | { | |
437 | struct usb_device *dev = chip->dev; | |
438 | __le64 raw_data = 0; | |
439 | u64 data; | |
440 | int err; | |
441 | ||
442 | /* we assume 64bit is enough for any altsettings */ | |
443 | if (snd_BUG_ON(altsetting >= 64 - 8)) | |
444 | return false; | |
445 | ||
51cb8e20 | 446 | err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, |
93db51d0 TI |
447 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
448 | UAC2_AS_VAL_ALT_SETTINGS << 8, | |
449 | iface, &raw_data, sizeof(raw_data)); | |
450 | if (err < 0) | |
451 | return false; | |
452 | ||
453 | data = le64_to_cpu(raw_data); | |
454 | /* first byte contains the bitmap size */ | |
455 | if ((data & 0xff) * 8 < altsetting) | |
456 | return false; | |
457 | if (data & (1ULL << (altsetting + 8))) | |
458 | return true; | |
459 | ||
460 | return false; | |
461 | } | |
462 | ||
463 | /* | |
464 | * Validate each sample rate with the altsetting | |
465 | * Rebuild the rate table if only partial values are valid | |
466 | */ | |
467 | static int validate_sample_rate_table_v2v3(struct snd_usb_audio *chip, | |
468 | struct audioformat *fp, | |
469 | int clock) | |
470 | { | |
471 | struct usb_device *dev = chip->dev; | |
472 | unsigned int *table; | |
473 | unsigned int nr_rates; | |
93db51d0 TI |
474 | int i, err; |
475 | ||
fe773b87 TI |
476 | /* performing the rate verification may lead to unexpected USB bus |
477 | * behavior afterwards by some unknown reason. Do this only for the | |
478 | * known devices. | |
479 | */ | |
8bfe17ad | 480 | if (!(chip->quirk_flags & QUIRK_FLAG_VALIDATE_RATES)) |
fe773b87 | 481 | return 0; /* don't perform the validation as default */ |
fe773b87 | 482 | |
93db51d0 TI |
483 | table = kcalloc(fp->nr_rates, sizeof(*table), GFP_KERNEL); |
484 | if (!table) | |
485 | return -ENOMEM; | |
486 | ||
487 | /* clear the interface altsetting at first */ | |
488 | usb_set_interface(dev, fp->iface, 0); | |
489 | ||
490 | nr_rates = 0; | |
491 | for (i = 0; i < fp->nr_rates; i++) { | |
492 | err = snd_usb_set_sample_rate_v2v3(chip, fp, clock, | |
493 | fp->rate_table[i]); | |
494 | if (err < 0) | |
495 | continue; | |
496 | ||
13ee0336 | 497 | if (check_valid_altsetting_v2v3(chip, fp->iface, fp->altsetting)) |
93db51d0 | 498 | table[nr_rates++] = fp->rate_table[i]; |
93db51d0 TI |
499 | } |
500 | ||
501 | if (!nr_rates) { | |
502 | usb_audio_dbg(chip, | |
503 | "No valid sample rate available for %d:%d, assuming a firmware bug\n", | |
504 | fp->iface, fp->altsetting); | |
505 | nr_rates = fp->nr_rates; /* continue as is */ | |
506 | } | |
507 | ||
508 | if (fp->nr_rates == nr_rates) { | |
509 | kfree(table); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | kfree(fp->rate_table); | |
514 | fp->rate_table = table; | |
515 | fp->nr_rates = nr_rates; | |
93db51d0 TI |
516 | return 0; |
517 | } | |
518 | ||
e5779998 DM |
519 | /* |
520 | * parse the format descriptor and stores the possible sample rates | |
9a2fe9b8 | 521 | * on the audioformat table (audio class v2 and v3). |
e5779998 | 522 | */ |
9a2fe9b8 | 523 | static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip, |
3d8d4dcf | 524 | struct audioformat *fp) |
e5779998 DM |
525 | { |
526 | struct usb_device *dev = chip->dev; | |
527 | unsigned char tmp[2], *data; | |
d4bd3053 | 528 | int nr_triplets, data_size, ret = 0, ret_l6; |
9f35a312 | 529 | int clock = snd_usb_clock_find_source(chip, fp, false); |
e5779998 | 530 | |
d07140ba | 531 | if (clock < 0) { |
0ba41d91 TI |
532 | dev_err(&dev->dev, |
533 | "%s(): unable to find clock source (clock %d)\n", | |
d07140ba DM |
534 | __func__, clock); |
535 | goto err; | |
536 | } | |
537 | ||
e5779998 DM |
538 | /* get the number of sample rates first by only fetching 2 bytes */ |
539 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
540 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, | |
11bcbc44 DM |
541 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
542 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 543 | tmp, sizeof(tmp)); |
e5779998 DM |
544 | |
545 | if (ret < 0) { | |
d4bd3053 NL |
546 | /* line6 helix devices don't support UAC2_CS_CONTROL_SAM_FREQ call */ |
547 | ret_l6 = line6_parse_audio_format_rates_quirk(chip, fp); | |
548 | if (ret_l6 == -ENODEV) { | |
549 | /* no line6 device found continue showing the error */ | |
550 | dev_err(&dev->dev, | |
551 | "%s(): unable to retrieve number of sample rates (clock %d)\n", | |
552 | __func__, clock); | |
553 | goto err; | |
554 | } | |
555 | if (ret_l6 == 0) { | |
556 | dev_info(&dev->dev, | |
557 | "%s(): unable to retrieve number of sample rates: set it to a predefined value (clock %d).\n", | |
79f920fb | 558 | __func__, clock); |
d4bd3053 NL |
559 | return 0; |
560 | } | |
561 | ret = ret_l6; | |
e5779998 DM |
562 | goto err; |
563 | } | |
564 | ||
67c10366 DM |
565 | nr_triplets = (tmp[1] << 8) | tmp[0]; |
566 | data_size = 2 + 12 * nr_triplets; | |
e5779998 DM |
567 | data = kzalloc(data_size, GFP_KERNEL); |
568 | if (!data) { | |
569 | ret = -ENOMEM; | |
570 | goto err; | |
571 | } | |
572 | ||
573 | /* now get the full information */ | |
574 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, | |
79f920fb | 575 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
11bcbc44 DM |
576 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
577 | snd_usb_ctrl_intf(chip) | (clock << 8), | |
17d900c4 | 578 | data, data_size); |
e5779998 DM |
579 | |
580 | if (ret < 0) { | |
0ba41d91 TI |
581 | dev_err(&dev->dev, |
582 | "%s(): unable to retrieve sample rate range (clock %d)\n", | |
79f920fb | 583 | __func__, clock); |
e5779998 DM |
584 | ret = -EINVAL; |
585 | goto err_free; | |
586 | } | |
587 | ||
67c10366 DM |
588 | /* Call the triplet parser, and make sure fp->rate_table is NULL. |
589 | * We just use the return value to know how many sample rates we | |
590 | * will have to deal with. */ | |
591 | kfree(fp->rate_table); | |
592 | fp->rate_table = NULL; | |
0ba41d91 | 593 | fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
67c10366 DM |
594 | |
595 | if (fp->nr_rates == 0) { | |
596 | /* SNDRV_PCM_RATE_CONTINUOUS */ | |
597 | ret = 0; | |
598 | goto err_free; | |
599 | } | |
600 | ||
6da2ec56 | 601 | fp->rate_table = kmalloc_array(fp->nr_rates, sizeof(int), GFP_KERNEL); |
e5779998 DM |
602 | if (!fp->rate_table) { |
603 | ret = -ENOMEM; | |
604 | goto err_free; | |
605 | } | |
606 | ||
67c10366 DM |
607 | /* Call the triplet parser again, but this time, fp->rate_table is |
608 | * allocated, so the rates will be stored */ | |
0ba41d91 | 609 | parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
e5779998 | 610 | |
93db51d0 | 611 | ret = validate_sample_rate_table_v2v3(chip, fp, clock); |
13ee0336 TI |
612 | if (ret < 0) |
613 | goto err_free; | |
614 | ||
615 | set_rate_table_min_max(fp); | |
93db51d0 | 616 | |
e5779998 DM |
617 | err_free: |
618 | kfree(data); | |
619 | err: | |
620 | return ret; | |
621 | } | |
622 | ||
623 | /* | |
624 | * parse the format type I and III descriptors | |
625 | */ | |
626 | static int parse_audio_format_i(struct snd_usb_audio *chip, | |
9a2fe9b8 RB |
627 | struct audioformat *fp, u64 format, |
628 | void *_fmt) | |
e5779998 | 629 | { |
74c34ca1 | 630 | snd_pcm_format_t pcm_format; |
9a2fe9b8 | 631 | unsigned int fmt_type; |
74c34ca1 | 632 | int ret; |
e5779998 | 633 | |
9a2fe9b8 RB |
634 | switch (fp->protocol) { |
635 | default: | |
636 | case UAC_VERSION_1: | |
637 | case UAC_VERSION_2: { | |
638 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
639 | ||
640 | fmt_type = fmt->bFormatType; | |
641 | break; | |
642 | } | |
643 | case UAC_VERSION_3: { | |
644 | /* fp->fmt_type is already set in this case */ | |
645 | fmt_type = fp->fmt_type; | |
646 | break; | |
647 | } | |
648 | } | |
649 | ||
650 | if (fmt_type == UAC_FORMAT_TYPE_III) { | |
e5779998 DM |
651 | /* FIXME: the format type is really IECxxx |
652 | * but we give normal PCM format to get the existing | |
653 | * apps working... | |
654 | */ | |
655 | switch (chip->usb_id) { | |
656 | ||
657 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ | |
658 | if (chip->setup == 0x00 && | |
659 | fp->altsetting == 6) | |
660 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; | |
661 | else | |
662 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
663 | break; | |
664 | default: | |
665 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; | |
666 | } | |
74c34ca1 | 667 | fp->formats = pcm_format_to_bits(pcm_format); |
e5779998 | 668 | } else { |
9a2fe9b8 | 669 | fp->formats = parse_audio_format_i_type(chip, fp, format, _fmt); |
29088fef | 670 | if (!fp->formats) |
8ad10dc6 | 671 | return -EINVAL; |
e5779998 DM |
672 | } |
673 | ||
e5779998 DM |
674 | /* gather possible sample rates */ |
675 | /* audio class v1 reports possible sample rates as part of the | |
676 | * proprietary class specific descriptor. | |
677 | * audio class v2 uses class specific EP0 range requests for that. | |
678 | */ | |
8f898e92 | 679 | switch (fp->protocol) { |
a2acad82 | 680 | default: |
9a2fe9b8 RB |
681 | case UAC_VERSION_1: { |
682 | struct uac_format_type_i_continuous_descriptor *fmt = _fmt; | |
683 | ||
e5779998 | 684 | fp->channels = fmt->bNrChannels; |
74754f97 | 685 | ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7); |
e5779998 | 686 | break; |
9a2fe9b8 | 687 | } |
e5779998 | 688 | case UAC_VERSION_2: |
9a2fe9b8 | 689 | case UAC_VERSION_3: { |
e5779998 | 690 | /* fp->channels is already set in this case */ |
9a2fe9b8 | 691 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
692 | break; |
693 | } | |
9a2fe9b8 | 694 | } |
e5779998 DM |
695 | |
696 | if (fp->channels < 1) { | |
0ba41d91 TI |
697 | usb_audio_err(chip, |
698 | "%u:%d : invalid channels %d\n", | |
699 | fp->iface, fp->altsetting, fp->channels); | |
8ad10dc6 | 700 | return -EINVAL; |
e5779998 DM |
701 | } |
702 | ||
703 | return ret; | |
704 | } | |
705 | ||
706 | /* | |
707 | * parse the format type II descriptor | |
708 | */ | |
709 | static int parse_audio_format_ii(struct snd_usb_audio *chip, | |
710 | struct audioformat *fp, | |
9a2fe9b8 | 711 | u64 format, void *_fmt) |
e5779998 DM |
712 | { |
713 | int brate, framesize, ret; | |
e5779998 DM |
714 | |
715 | switch (format) { | |
716 | case UAC_FORMAT_TYPE_II_AC3: | |
717 | /* FIXME: there is no AC3 format defined yet */ | |
015eb0b0 CL |
718 | // fp->formats = SNDRV_PCM_FMTBIT_AC3; |
719 | fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */ | |
e5779998 DM |
720 | break; |
721 | case UAC_FORMAT_TYPE_II_MPEG: | |
015eb0b0 | 722 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
723 | break; |
724 | default: | |
0ba41d91 | 725 | usb_audio_info(chip, |
9a2fe9b8 | 726 | "%u:%d : unknown format tag %#llx is detected. processed as MPEG.\n", |
0ba41d91 | 727 | fp->iface, fp->altsetting, format); |
015eb0b0 | 728 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
e5779998 DM |
729 | break; |
730 | } | |
731 | ||
732 | fp->channels = 1; | |
733 | ||
8f898e92 | 734 | switch (fp->protocol) { |
a2acad82 | 735 | default: |
e5779998 DM |
736 | case UAC_VERSION_1: { |
737 | struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; | |
738 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
739 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 740 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 DM |
741 | fp->frame_size = framesize; |
742 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ | |
743 | break; | |
744 | } | |
745 | case UAC_VERSION_2: { | |
746 | struct uac_format_type_ii_ext_descriptor *fmt = _fmt; | |
747 | brate = le16_to_cpu(fmt->wMaxBitRate); | |
748 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); | |
0ba41d91 | 749 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
e5779998 | 750 | fp->frame_size = framesize; |
9a2fe9b8 | 751 | ret = parse_audio_format_rates_v2v3(chip, fp); |
e5779998 DM |
752 | break; |
753 | } | |
754 | } | |
755 | ||
756 | return ret; | |
757 | } | |
758 | ||
2fcdb06d | 759 | int snd_usb_parse_audio_format(struct snd_usb_audio *chip, |
9a2fe9b8 | 760 | struct audioformat *fp, u64 format, |
2fcdb06d | 761 | struct uac_format_type_i_continuous_descriptor *fmt, |
8f898e92 | 762 | int stream) |
e5779998 DM |
763 | { |
764 | int err; | |
765 | ||
74754f97 | 766 | switch (fmt->bFormatType) { |
e5779998 DM |
767 | case UAC_FORMAT_TYPE_I: |
768 | case UAC_FORMAT_TYPE_III: | |
8f898e92 | 769 | err = parse_audio_format_i(chip, fp, format, fmt); |
e5779998 DM |
770 | break; |
771 | case UAC_FORMAT_TYPE_II: | |
8f898e92 | 772 | err = parse_audio_format_ii(chip, fp, format, fmt); |
e5779998 DM |
773 | break; |
774 | default: | |
0ba41d91 TI |
775 | usb_audio_info(chip, |
776 | "%u:%d : format type %d is not supported yet\n", | |
777 | fp->iface, fp->altsetting, | |
778 | fmt->bFormatType); | |
8d091242 | 779 | return -ENOTSUPP; |
e5779998 | 780 | } |
74754f97 | 781 | fp->fmt_type = fmt->bFormatType; |
e5779998 DM |
782 | if (err < 0) |
783 | return err; | |
784 | #if 1 | |
785 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ | |
786 | /* extigy apparently supports sample rates other than 48k | |
787 | * but not in ordinary way. so we enable only 48k atm. | |
788 | */ | |
789 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || | |
790 | chip->usb_id == USB_ID(0x041e, 0x3020) || | |
791 | chip->usb_id == USB_ID(0x041e, 0x3061)) { | |
74754f97 | 792 | if (fmt->bFormatType == UAC_FORMAT_TYPE_I && |
e5779998 DM |
793 | fp->rates != SNDRV_PCM_RATE_48000 && |
794 | fp->rates != SNDRV_PCM_RATE_96000) | |
8d091242 | 795 | return -ENOTSUPP; |
e5779998 DM |
796 | } |
797 | #endif | |
798 | return 0; | |
799 | } | |
800 | ||
9a2fe9b8 RB |
801 | int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip, |
802 | struct audioformat *fp, | |
803 | struct uac3_as_header_descriptor *as, | |
804 | int stream) | |
805 | { | |
806 | u64 format = le64_to_cpu(as->bmFormats); | |
807 | int err; | |
808 | ||
809 | /* | |
810 | * Type I format bits are D0..D6 | |
811 | * This test works because type IV is not supported | |
812 | */ | |
813 | if (format & 0x7f) | |
814 | fp->fmt_type = UAC_FORMAT_TYPE_I; | |
815 | else | |
816 | fp->fmt_type = UAC_FORMAT_TYPE_III; | |
817 | ||
818 | err = parse_audio_format_i(chip, fp, format, as); | |
819 | if (err < 0) | |
820 | return err; | |
821 | ||
822 | return 0; | |
823 | } |