Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 1 | /* |
| 2 | * This program is free software; you can redistribute it and/or modify |
| 3 | * it under the terms of the GNU General Public License as published by |
| 4 | * the Free Software Foundation; either version 2 of the License, or |
| 5 | * (at your option) any later version. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | * You should have received a copy of the GNU General Public License |
| 13 | * along with this program; if not, write to the Free Software |
| 14 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #include <linux/init.h> |
Stephen Rothwell | 36db045 | 2010-03-29 16:02:50 +1100 | [diff] [blame] | 19 | #include <linux/slab.h> |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 20 | #include <linux/usb.h> |
| 21 | #include <linux/usb/audio.h> |
Daniel Mack | 7e84789 | 2010-03-11 21:13:20 +0100 | [diff] [blame] | 22 | #include <linux/usb/audio-v2.h> |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 23 | #include <linux/usb/audio-v3.h> |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 24 | |
| 25 | #include <sound/core.h> |
| 26 | #include <sound/pcm.h> |
| 27 | |
| 28 | #include "usbaudio.h" |
| 29 | #include "card.h" |
| 30 | #include "quirks.h" |
| 31 | #include "helper.h" |
| 32 | #include "debug.h" |
Daniel Mack | 79f920f | 2010-05-31 14:51:31 +0200 | [diff] [blame] | 33 | #include "clock.h" |
Daniel Mack | ee95cb6 | 2011-05-18 11:28:40 +0200 | [diff] [blame] | 34 | #include "format.h" |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 35 | |
| 36 | /* |
| 37 | * parse the audio format type I descriptor |
| 38 | * and returns the corresponding pcm format |
| 39 | * |
| 40 | * @dev: usb device |
| 41 | * @fp: audioformat record |
| 42 | * @format: the format tag (wFormatTag) |
| 43 | * @fmt: the format type descriptor |
| 44 | */ |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 45 | static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 46 | struct audioformat *fp, |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 47 | unsigned int format, void *_fmt) |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 48 | { |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 49 | int sample_width, sample_bytes; |
Daniel Mack | 717bfb5 | 2013-03-17 20:07:25 +0800 | [diff] [blame] | 50 | u64 pcm_formats = 0; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 51 | |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 52 | switch (fp->protocol) { |
Clemens Ladisch | a2acad8 | 2010-09-03 10:53:11 +0200 | [diff] [blame] | 53 | case UAC_VERSION_1: |
| 54 | default: { |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 55 | struct uac_format_type_i_discrete_descriptor *fmt = _fmt; |
| 56 | sample_width = fmt->bBitResolution; |
| 57 | sample_bytes = fmt->bSubframeSize; |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 58 | format = 1 << format; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 59 | break; |
| 60 | } |
| 61 | |
| 62 | case UAC_VERSION_2: { |
| 63 | struct uac_format_type_i_ext_descriptor *fmt = _fmt; |
| 64 | sample_width = fmt->bBitResolution; |
| 65 | sample_bytes = fmt->bSubslotSize; |
Daniel Mack | 717bfb5 | 2013-03-17 20:07:25 +0800 | [diff] [blame] | 66 | |
| 67 | if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) |
| 68 | pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; |
| 69 | |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 70 | format <<= 1; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 71 | break; |
| 72 | } |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 73 | |
| 74 | case UAC_VERSION_3: { |
| 75 | switch (fp->maxpacksize) { |
| 76 | case BADD_MAXPSIZE_SYNC_MONO_16: |
| 77 | case BADD_MAXPSIZE_SYNC_STEREO_16: |
| 78 | case BADD_MAXPSIZE_ASYNC_MONO_16: |
| 79 | case BADD_MAXPSIZE_ASYNC_STEREO_16: { |
| 80 | sample_width = BIT_RES_16_BIT; |
| 81 | sample_bytes = SUBSLOTSIZE_16_BIT; |
| 82 | break; |
| 83 | } |
| 84 | |
| 85 | case BADD_MAXPSIZE_SYNC_MONO_24: |
| 86 | case BADD_MAXPSIZE_SYNC_STEREO_24: |
| 87 | case BADD_MAXPSIZE_ASYNC_MONO_24: |
| 88 | case BADD_MAXPSIZE_ASYNC_STEREO_24: { |
| 89 | sample_width = BIT_RES_24_BIT; |
| 90 | sample_bytes = SUBSLOTSIZE_24_BIT; |
| 91 | break; |
| 92 | } |
| 93 | default: |
| 94 | usb_audio_err(chip, "%u:%d : Invalid wMaxPacketSize\n", |
| 95 | fp->iface, fp->altsetting); |
| 96 | return pcm_formats; |
| 97 | } |
| 98 | format = 1 << format; |
| 99 | break; |
| 100 | } |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 101 | } |
| 102 | |
Daniel Mack | 717bfb5 | 2013-03-17 20:07:25 +0800 | [diff] [blame] | 103 | if ((pcm_formats == 0) && |
| 104 | (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) { |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 105 | /* some devices don't define this correctly... */ |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 106 | usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n", |
| 107 | fp->iface, fp->altsetting); |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 108 | format = 1 << UAC_FORMAT_TYPE_I_PCM; |
| 109 | } |
| 110 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) { |
Takamichi Horikawa | 6d1f2f6 | 2015-04-21 11:23:57 +0900 | [diff] [blame] | 111 | if (((chip->usb_id == USB_ID(0x0582, 0x0016)) || |
| 112 | /* Edirol SD-90 */ |
| 113 | (chip->usb_id == USB_ID(0x0582, 0x000c))) && |
| 114 | /* Roland SC-D70 */ |
Clemens Ladisch | 061b869 | 2011-01-10 16:30:54 +0100 | [diff] [blame] | 115 | sample_width == 24 && sample_bytes == 2) |
| 116 | sample_bytes = 3; |
| 117 | else if (sample_width > sample_bytes * 8) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 118 | usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n", |
| 119 | fp->iface, fp->altsetting, |
| 120 | sample_width, sample_bytes); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 121 | } |
| 122 | /* check the format byte size */ |
| 123 | switch (sample_bytes) { |
| 124 | case 1: |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 125 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 126 | break; |
| 127 | case 2: |
| 128 | if (snd_usb_is_big_endian_format(chip, fp)) |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 129 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_BE; /* grrr, big endian!! */ |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 130 | else |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 131 | pcm_formats |= SNDRV_PCM_FMTBIT_S16_LE; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 132 | break; |
| 133 | case 3: |
| 134 | if (snd_usb_is_big_endian_format(chip, fp)) |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 135 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3BE; /* grrr, big endian!! */ |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 136 | else |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 137 | pcm_formats |= SNDRV_PCM_FMTBIT_S24_3LE; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 138 | break; |
| 139 | case 4: |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 140 | pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 141 | break; |
| 142 | default: |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 143 | usb_audio_info(chip, |
| 144 | "%u:%d : unsupported sample bitwidth %d in %d bytes\n", |
| 145 | fp->iface, fp->altsetting, |
| 146 | sample_width, sample_bytes); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 147 | break; |
| 148 | } |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 149 | } |
| 150 | if (format & (1 << UAC_FORMAT_TYPE_I_PCM8)) { |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 151 | /* Dallas DS4201 workaround: it advertises U8 format, but really |
| 152 | supports S8. */ |
| 153 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 154 | pcm_formats |= SNDRV_PCM_FMTBIT_S8; |
| 155 | else |
| 156 | pcm_formats |= SNDRV_PCM_FMTBIT_U8; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 157 | } |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 158 | if (format & (1 << UAC_FORMAT_TYPE_I_IEEE_FLOAT)) { |
| 159 | pcm_formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; |
| 160 | } |
| 161 | if (format & (1 << UAC_FORMAT_TYPE_I_ALAW)) { |
| 162 | pcm_formats |= SNDRV_PCM_FMTBIT_A_LAW; |
| 163 | } |
| 164 | if (format & (1 << UAC_FORMAT_TYPE_I_MULAW)) { |
| 165 | pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW; |
| 166 | } |
| 167 | if (format & ~0x3f) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 168 | usb_audio_info(chip, |
| 169 | "%u:%d : unsupported format bits %#x\n", |
| 170 | fp->iface, fp->altsetting, format); |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 171 | } |
Daniel Mack | 126825e | 2013-04-17 00:01:40 +0800 | [diff] [blame] | 172 | |
| 173 | pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes); |
| 174 | |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 175 | return pcm_formats; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | |
| 179 | /* |
| 180 | * parse the format descriptor and stores the possible sample rates |
| 181 | * on the audioformat table (audio class v1). |
| 182 | * |
| 183 | * @dev: usb device |
| 184 | * @fp: audioformat record |
| 185 | * @fmt: the format descriptor |
| 186 | * @offset: the start offset of descriptor pointing the rate type |
| 187 | * (7 for type I and II, 8 for type II) |
| 188 | */ |
| 189 | static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp, |
| 190 | unsigned char *fmt, int offset) |
| 191 | { |
| 192 | int nr_rates = fmt[offset]; |
| 193 | |
| 194 | if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 195 | usb_audio_err(chip, |
| 196 | "%u:%d : invalid UAC_FORMAT_TYPE desc\n", |
| 197 | fp->iface, fp->altsetting); |
Sachin Kamat | 8ad10dc | 2012-11-21 15:25:56 +0530 | [diff] [blame] | 198 | return -EINVAL; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | if (nr_rates) { |
| 202 | /* |
| 203 | * build the rate table and bitmap flags |
| 204 | */ |
| 205 | int r, idx; |
| 206 | |
| 207 | fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL); |
Shawn Lin | 1bc00f32 | 2016-08-21 10:17:36 +0800 | [diff] [blame] | 208 | if (fp->rate_table == NULL) |
Sachin Kamat | 8ad10dc | 2012-11-21 15:25:56 +0530 | [diff] [blame] | 209 | return -ENOMEM; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 210 | |
| 211 | fp->nr_rates = 0; |
| 212 | fp->rate_min = fp->rate_max = 0; |
| 213 | for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { |
| 214 | unsigned int rate = combine_triple(&fmt[idx]); |
| 215 | if (!rate) |
| 216 | continue; |
| 217 | /* C-Media CM6501 mislabels its 96 kHz altsetting */ |
Wolfgang Breyha | 8129e79 | 2011-04-28 16:18:40 +0200 | [diff] [blame] | 218 | /* Terratec Aureon 7.1 USB C-Media 6206, too */ |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 219 | if (rate == 48000 && nr_rates == 1 && |
| 220 | (chip->usb_id == USB_ID(0x0d8c, 0x0201) || |
Wolfgang Breyha | 8129e79 | 2011-04-28 16:18:40 +0200 | [diff] [blame] | 221 | chip->usb_id == USB_ID(0x0d8c, 0x0102) || |
| 222 | chip->usb_id == USB_ID(0x0ccd, 0x00b1)) && |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 223 | fp->altsetting == 5 && fp->maxpacksize == 392) |
| 224 | rate = 96000; |
Pavel Hofman | 8c4b79c | 2014-01-14 13:42:57 +0100 | [diff] [blame] | 225 | /* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */ |
| 226 | if (rate == 16000 && |
| 227 | (chip->usb_id == USB_ID(0x041e, 0x4064) || |
| 228 | chip->usb_id == USB_ID(0x041e, 0x4068))) |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 229 | rate = 8000; |
| 230 | |
| 231 | fp->rate_table[fp->nr_rates] = rate; |
| 232 | if (!fp->rate_min || rate < fp->rate_min) |
| 233 | fp->rate_min = rate; |
| 234 | if (!fp->rate_max || rate > fp->rate_max) |
| 235 | fp->rate_max = rate; |
| 236 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); |
| 237 | fp->nr_rates++; |
| 238 | } |
| 239 | if (!fp->nr_rates) { |
| 240 | hwc_debug("All rates were zero. Skipping format!\n"); |
Sachin Kamat | 8ad10dc | 2012-11-21 15:25:56 +0530 | [diff] [blame] | 241 | return -EINVAL; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 242 | } |
| 243 | } else { |
| 244 | /* continuous rates */ |
| 245 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; |
| 246 | fp->rate_min = combine_triple(&fmt[offset + 1]); |
| 247 | fp->rate_max = combine_triple(&fmt[offset + 4]); |
| 248 | } |
| 249 | return 0; |
| 250 | } |
| 251 | |
| 252 | /* |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 253 | * Helper function to walk the array of sample rate triplets reported by |
| 254 | * the device. The problem is that we need to parse whole array first to |
| 255 | * get to know how many sample rates we have to expect. |
| 256 | * Then fp->rate_table can be allocated and filled. |
| 257 | */ |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 258 | static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip, |
| 259 | struct audioformat *fp, int nr_triplets, |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 260 | const unsigned char *data) |
| 261 | { |
| 262 | int i, nr_rates = 0; |
| 263 | |
| 264 | fp->rates = fp->rate_min = fp->rate_max = 0; |
| 265 | |
| 266 | for (i = 0; i < nr_triplets; i++) { |
| 267 | int min = combine_quad(&data[2 + 12 * i]); |
| 268 | int max = combine_quad(&data[6 + 12 * i]); |
| 269 | int res = combine_quad(&data[10 + 12 * i]); |
Xi Wang | 4fa0e81 | 2012-01-08 09:02:52 -0500 | [diff] [blame] | 270 | unsigned int rate; |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 271 | |
| 272 | if ((max < 0) || (min < 0) || (res < 0) || (max < min)) |
| 273 | continue; |
| 274 | |
| 275 | /* |
| 276 | * for ranges with res == 1, we announce a continuous sample |
| 277 | * rate range, and this function should return 0 for no further |
| 278 | * parsing. |
| 279 | */ |
| 280 | if (res == 1) { |
| 281 | fp->rate_min = min; |
| 282 | fp->rate_max = max; |
| 283 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | for (rate = min; rate <= max; rate += res) { |
| 288 | if (fp->rate_table) |
| 289 | fp->rate_table[nr_rates] = rate; |
| 290 | if (!fp->rate_min || rate < fp->rate_min) |
| 291 | fp->rate_min = rate; |
| 292 | if (!fp->rate_max || rate > fp->rate_max) |
| 293 | fp->rate_max = rate; |
| 294 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); |
| 295 | |
| 296 | nr_rates++; |
Xi Wang | 8866f40 | 2012-02-14 05:18:48 -0500 | [diff] [blame] | 297 | if (nr_rates >= MAX_NR_RATES) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 298 | usb_audio_err(chip, "invalid uac2 rates\n"); |
Xi Wang | 4fa0e81 | 2012-01-08 09:02:52 -0500 | [diff] [blame] | 299 | break; |
| 300 | } |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 301 | |
| 302 | /* avoid endless loop */ |
| 303 | if (res == 0) |
| 304 | break; |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | return nr_rates; |
| 309 | } |
| 310 | |
| 311 | /* |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 312 | * parse the format descriptor and stores the possible sample rates |
| 313 | * on the audioformat table (audio class v2). |
| 314 | */ |
| 315 | static int parse_audio_format_rates_v2(struct snd_usb_audio *chip, |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 316 | struct audioformat *fp) |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 317 | { |
| 318 | struct usb_device *dev = chip->dev; |
| 319 | unsigned char tmp[2], *data; |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 320 | int nr_triplets, data_size, ret = 0; |
Eldad Zack | 06ffc1e | 2013-04-03 23:18:54 +0200 | [diff] [blame] | 321 | int clock = snd_usb_clock_find_source(chip, fp->clock, false); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 322 | |
Daniel Mack | d07140b | 2010-06-11 17:34:19 +0200 | [diff] [blame] | 323 | if (clock < 0) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 324 | dev_err(&dev->dev, |
| 325 | "%s(): unable to find clock source (clock %d)\n", |
Daniel Mack | d07140b | 2010-06-11 17:34:19 +0200 | [diff] [blame] | 326 | __func__, clock); |
| 327 | goto err; |
| 328 | } |
| 329 | |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 330 | /* get the number of sample rates first by only fetching 2 bytes */ |
| 331 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, |
| 332 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
Daniel Mack | 11bcbc4 | 2010-06-11 17:34:20 +0200 | [diff] [blame] | 333 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
| 334 | snd_usb_ctrl_intf(chip) | (clock << 8), |
Clemens Ladisch | 17d900c | 2011-09-26 21:15:27 +0200 | [diff] [blame] | 335 | tmp, sizeof(tmp)); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 336 | |
| 337 | if (ret < 0) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 338 | dev_err(&dev->dev, |
| 339 | "%s(): unable to retrieve number of sample rates (clock %d)\n", |
Daniel Mack | 79f920f | 2010-05-31 14:51:31 +0200 | [diff] [blame] | 340 | __func__, clock); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 341 | goto err; |
| 342 | } |
| 343 | |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 344 | nr_triplets = (tmp[1] << 8) | tmp[0]; |
| 345 | data_size = 2 + 12 * nr_triplets; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 346 | data = kzalloc(data_size, GFP_KERNEL); |
| 347 | if (!data) { |
| 348 | ret = -ENOMEM; |
| 349 | goto err; |
| 350 | } |
| 351 | |
| 352 | /* now get the full information */ |
| 353 | ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, |
Daniel Mack | 79f920f | 2010-05-31 14:51:31 +0200 | [diff] [blame] | 354 | USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, |
Daniel Mack | 11bcbc4 | 2010-06-11 17:34:20 +0200 | [diff] [blame] | 355 | UAC2_CS_CONTROL_SAM_FREQ << 8, |
| 356 | snd_usb_ctrl_intf(chip) | (clock << 8), |
Clemens Ladisch | 17d900c | 2011-09-26 21:15:27 +0200 | [diff] [blame] | 357 | data, data_size); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 358 | |
| 359 | if (ret < 0) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 360 | dev_err(&dev->dev, |
| 361 | "%s(): unable to retrieve sample rate range (clock %d)\n", |
Daniel Mack | 79f920f | 2010-05-31 14:51:31 +0200 | [diff] [blame] | 362 | __func__, clock); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 363 | ret = -EINVAL; |
| 364 | goto err_free; |
| 365 | } |
| 366 | |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 367 | /* Call the triplet parser, and make sure fp->rate_table is NULL. |
| 368 | * We just use the return value to know how many sample rates we |
| 369 | * will have to deal with. */ |
| 370 | kfree(fp->rate_table); |
| 371 | fp->rate_table = NULL; |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 372 | fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 373 | |
| 374 | if (fp->nr_rates == 0) { |
| 375 | /* SNDRV_PCM_RATE_CONTINUOUS */ |
| 376 | ret = 0; |
| 377 | goto err_free; |
| 378 | } |
| 379 | |
| 380 | fp->rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 381 | if (!fp->rate_table) { |
| 382 | ret = -ENOMEM; |
| 383 | goto err_free; |
| 384 | } |
| 385 | |
Daniel Mack | 67c1036 | 2010-06-11 17:46:33 +0200 | [diff] [blame] | 386 | /* Call the triplet parser again, but this time, fp->rate_table is |
| 387 | * allocated, so the rates will be stored */ |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 388 | parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 389 | |
| 390 | err_free: |
| 391 | kfree(data); |
| 392 | err: |
| 393 | return ret; |
| 394 | } |
| 395 | |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 396 | static int badd_set_audio_rate_v3(struct snd_usb_audio *chip, |
| 397 | struct audioformat *fp) |
| 398 | { |
| 399 | unsigned int rate; |
| 400 | |
| 401 | fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL); |
| 402 | if (fp->rate_table == NULL) |
| 403 | return -ENOMEM; |
| 404 | |
| 405 | fp->nr_rates = 1; |
| 406 | rate = BADD_SAMPLING_RATE; |
| 407 | fp->rate_min = fp->rate_max = fp->rate_table[0] = rate; |
| 408 | fp->rates |= snd_pcm_rate_to_rate_bit(rate); |
| 409 | return 0; |
| 410 | } |
| 411 | |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 412 | /* |
| 413 | * parse the format type I and III descriptors |
| 414 | */ |
| 415 | static int parse_audio_format_i(struct snd_usb_audio *chip, |
Daniel Mack | 2fcdb06 | 2013-03-17 20:07:24 +0800 | [diff] [blame] | 416 | struct audioformat *fp, unsigned int format, |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 417 | u8 format_type, |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 418 | struct uac_format_type_i_continuous_descriptor *fmt) |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 419 | { |
Eldad Zack | 74c34ca | 2013-04-23 01:00:41 +0200 | [diff] [blame] | 420 | snd_pcm_format_t pcm_format; |
| 421 | int ret; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 422 | |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 423 | if (format_type == UAC_FORMAT_TYPE_III) { |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 424 | /* FIXME: the format type is really IECxxx |
| 425 | * but we give normal PCM format to get the existing |
| 426 | * apps working... |
| 427 | */ |
| 428 | switch (chip->usb_id) { |
| 429 | |
| 430 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ |
| 431 | if (chip->setup == 0x00 && |
| 432 | fp->altsetting == 6) |
| 433 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; |
| 434 | else |
| 435 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; |
| 436 | break; |
| 437 | default: |
| 438 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; |
| 439 | } |
Eldad Zack | 74c34ca | 2013-04-23 01:00:41 +0200 | [diff] [blame] | 440 | fp->formats = pcm_format_to_bits(pcm_format); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 441 | } else { |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 442 | fp->formats = parse_audio_format_i_type(chip, fp, format, fmt); |
Clemens Ladisch | 29088fe | 2010-03-04 19:46:16 +0100 | [diff] [blame] | 443 | if (!fp->formats) |
Sachin Kamat | 8ad10dc | 2012-11-21 15:25:56 +0530 | [diff] [blame] | 444 | return -EINVAL; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 445 | } |
| 446 | |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 447 | /* gather possible sample rates */ |
| 448 | /* audio class v1 reports possible sample rates as part of the |
| 449 | * proprietary class specific descriptor. |
| 450 | * audio class v2 uses class specific EP0 range requests for that. |
| 451 | */ |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 452 | switch (fp->protocol) { |
Clemens Ladisch | a2acad8 | 2010-09-03 10:53:11 +0200 | [diff] [blame] | 453 | default: |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 454 | case UAC_VERSION_1: |
| 455 | fp->channels = fmt->bNrChannels; |
Daniel Mack | 74754f9 | 2010-05-26 18:11:36 +0200 | [diff] [blame] | 456 | ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 457 | break; |
| 458 | case UAC_VERSION_2: |
| 459 | /* fp->channels is already set in this case */ |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 460 | ret = parse_audio_format_rates_v2(chip, fp); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 461 | break; |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 462 | case UAC_VERSION_3: |
| 463 | ret = badd_set_audio_rate_v3(chip, fp); |
| 464 | break; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | if (fp->channels < 1) { |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 468 | usb_audio_err(chip, |
| 469 | "%u:%d : invalid channels %d\n", |
| 470 | fp->iface, fp->altsetting, fp->channels); |
Sachin Kamat | 8ad10dc | 2012-11-21 15:25:56 +0530 | [diff] [blame] | 471 | return -EINVAL; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | return ret; |
| 475 | } |
| 476 | |
| 477 | /* |
| 478 | * parse the format type II descriptor |
| 479 | */ |
| 480 | static int parse_audio_format_ii(struct snd_usb_audio *chip, |
| 481 | struct audioformat *fp, |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 482 | int format, void *_fmt) |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 483 | { |
| 484 | int brate, framesize, ret; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 485 | |
| 486 | switch (format) { |
| 487 | case UAC_FORMAT_TYPE_II_AC3: |
| 488 | /* FIXME: there is no AC3 format defined yet */ |
Clemens Ladisch | 015eb0b | 2010-03-04 19:46:15 +0100 | [diff] [blame] | 489 | // fp->formats = SNDRV_PCM_FMTBIT_AC3; |
| 490 | fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */ |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 491 | break; |
| 492 | case UAC_FORMAT_TYPE_II_MPEG: |
Clemens Ladisch | 015eb0b | 2010-03-04 19:46:15 +0100 | [diff] [blame] | 493 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 494 | break; |
| 495 | default: |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 496 | usb_audio_info(chip, |
| 497 | "%u:%d : unknown format tag %#x is detected. processed as MPEG.\n", |
| 498 | fp->iface, fp->altsetting, format); |
Clemens Ladisch | 015eb0b | 2010-03-04 19:46:15 +0100 | [diff] [blame] | 499 | fp->formats = SNDRV_PCM_FMTBIT_MPEG; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 500 | break; |
| 501 | } |
| 502 | |
| 503 | fp->channels = 1; |
| 504 | |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 505 | switch (fp->protocol) { |
Clemens Ladisch | a2acad8 | 2010-09-03 10:53:11 +0200 | [diff] [blame] | 506 | default: |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 507 | case UAC_VERSION_1: { |
| 508 | struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; |
| 509 | brate = le16_to_cpu(fmt->wMaxBitRate); |
| 510 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 511 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 512 | fp->frame_size = framesize; |
| 513 | ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ |
| 514 | break; |
| 515 | } |
| 516 | case UAC_VERSION_2: { |
| 517 | struct uac_format_type_ii_ext_descriptor *fmt = _fmt; |
| 518 | brate = le16_to_cpu(fmt->wMaxBitRate); |
| 519 | framesize = le16_to_cpu(fmt->wSamplesPerFrame); |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 520 | usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 521 | fp->frame_size = framesize; |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 522 | ret = parse_audio_format_rates_v2(chip, fp); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 523 | break; |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | return ret; |
| 528 | } |
| 529 | |
Daniel Mack | 2fcdb06 | 2013-03-17 20:07:24 +0800 | [diff] [blame] | 530 | int snd_usb_parse_audio_format(struct snd_usb_audio *chip, |
| 531 | struct audioformat *fp, unsigned int format, |
| 532 | struct uac_format_type_i_continuous_descriptor *fmt, |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 533 | int stream) |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 534 | { |
| 535 | int err; |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 536 | int format_type = -EINVAL; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 537 | |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 538 | if ((fp->protocol == UAC_VERSION_1) || |
| 539 | (fp->protocol == UAC_VERSION_2)) |
| 540 | format_type = fmt->bFormatType; |
| 541 | else |
| 542 | format_type = UAC_FORMAT_TYPE_I; /* only BADD is supported */ |
| 543 | |
| 544 | switch (format_type) { |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 545 | case UAC_FORMAT_TYPE_I: |
| 546 | case UAC_FORMAT_TYPE_III: |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 547 | err = parse_audio_format_i(chip, fp, format, format_type, fmt); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 548 | break; |
| 549 | case UAC_FORMAT_TYPE_II: |
Clemens Ladisch | 8f898e9 | 2013-01-31 21:39:17 +0100 | [diff] [blame] | 550 | err = parse_audio_format_ii(chip, fp, format, fmt); |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 551 | break; |
| 552 | default: |
Takashi Iwai | 0ba41d9 | 2014-02-26 13:02:17 +0100 | [diff] [blame] | 553 | usb_audio_info(chip, |
| 554 | "%u:%d : format type %d is not supported yet\n", |
| 555 | fp->iface, fp->altsetting, |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 556 | format_type); |
Daniel Mack | 8d09124 | 2010-05-26 18:11:37 +0200 | [diff] [blame] | 557 | return -ENOTSUPP; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 558 | } |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 559 | fp->fmt_type = format_type; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 560 | if (err < 0) |
| 561 | return err; |
| 562 | #if 1 |
| 563 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ |
| 564 | /* extigy apparently supports sample rates other than 48k |
| 565 | * but not in ordinary way. so we enable only 48k atm. |
| 566 | */ |
| 567 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || |
| 568 | chip->usb_id == USB_ID(0x041e, 0x3020) || |
| 569 | chip->usb_id == USB_ID(0x041e, 0x3061)) { |
Ajay Agarwal | abed8d4 | 2017-02-07 16:40:09 +0530 | [diff] [blame] | 570 | if (format_type == UAC_FORMAT_TYPE_I && |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 571 | fp->rates != SNDRV_PCM_RATE_48000 && |
| 572 | fp->rates != SNDRV_PCM_RATE_96000) |
Daniel Mack | 8d09124 | 2010-05-26 18:11:37 +0200 | [diff] [blame] | 573 | return -ENOTSUPP; |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 574 | } |
| 575 | #endif |
| 576 | return 0; |
| 577 | } |
| 578 | |