Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * (Tentative) USB Audio Driver for ALSA |
| 3 | * |
| 4 | * Mixer control part |
| 5 | * |
| 6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> |
| 7 | * |
| 8 | * Many codes borrowed from audio.c by |
| 9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) |
| 10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) |
| 11 | * |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 26 | * |
| 27 | */ |
| 28 | |
Daniel Mack | 157a57b | 2010-06-16 17:57:30 +0200 | [diff] [blame] | 29 | /* |
| 30 | * TODOs, for both the mixer and the streaming interfaces: |
| 31 | * |
| 32 | * - support for UAC2 effect units |
| 33 | * - support for graphical equalizers |
| 34 | * - RANGE and MEM set commands (UAC2) |
| 35 | * - RANGE and MEM interrupt dispatchers (UAC2) |
| 36 | * - audio channel clustering (UAC2) |
| 37 | * - audio sample rate converter units (UAC2) |
| 38 | * - proper handling of clock multipliers (UAC2) |
| 39 | * - dispatch clock change notifications (UAC2) |
| 40 | * - stop PCM streams which use a clock that became invalid |
| 41 | * - stop PCM streams which use a clock selector that has changed |
| 42 | * - parse available sample rates again when clock sources changed |
| 43 | */ |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <linux/bitops.h> |
| 46 | #include <linux/init.h> |
| 47 | #include <linux/list.h> |
| 48 | #include <linux/slab.h> |
| 49 | #include <linux/string.h> |
| 50 | #include <linux/usb.h> |
Daniel Mack | 28e1b77 | 2010-02-22 23:49:09 +0100 | [diff] [blame] | 51 | #include <linux/usb/audio.h> |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 52 | #include <linux/usb/audio-v2.h> |
Daniel Mack | 28e1b77 | 2010-02-22 23:49:09 +0100 | [diff] [blame] | 53 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #include <sound/core.h> |
| 55 | #include <sound/control.h> |
Clemens Ladisch | b259b10 | 2005-04-29 16:29:28 +0200 | [diff] [blame] | 56 | #include <sound/hwdep.h> |
Clemens Ladisch | aafad56 | 2005-05-10 14:47:38 +0200 | [diff] [blame] | 57 | #include <sound/info.h> |
Takashi Iwai | 7bc5ba7e | 2006-07-14 15:18:19 +0200 | [diff] [blame] | 58 | #include <sound/tlv.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
| 60 | #include "usbaudio.h" |
Daniel Mack | f0b5e63 | 2010-03-11 21:13:23 +0100 | [diff] [blame] | 61 | #include "mixer.h" |
Daniel Mack | e577999 | 2010-03-04 19:46:13 +0100 | [diff] [blame] | 62 | #include "helper.h" |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 63 | #include "mixer_quirks.h" |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 64 | #include "power.h" |
Raimonds Cicans | 4d1a70d | 2006-05-05 09:49:53 +0200 | [diff] [blame] | 65 | |
Jaroslav Kysela | ebfdeea | 2010-02-16 11:17:09 +0100 | [diff] [blame] | 66 | #define MAX_ID_ELEMS 256 |
| 67 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | struct usb_audio_term { |
| 69 | int id; |
| 70 | int type; |
| 71 | int channels; |
| 72 | unsigned int chconfig; |
| 73 | int name; |
| 74 | }; |
| 75 | |
| 76 | struct usbmix_name_map; |
| 77 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 78 | struct mixer_build { |
| 79 | struct snd_usb_audio *chip; |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 80 | struct usb_mixer_interface *mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | unsigned char *buffer; |
| 82 | unsigned int buflen; |
Jaroslav Kysela | 291186e | 2010-02-16 11:55:18 +0100 | [diff] [blame] | 83 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 84 | struct usb_audio_term oterm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | const struct usbmix_name_map *map; |
Clemens Ladisch | 8e062ec | 2005-04-22 15:49:52 +0200 | [diff] [blame] | 86 | const struct usbmix_selector_map *selector_map; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | }; |
| 88 | |
Joseph Teichman | 1cdfa9f | 2011-02-08 01:22:36 -0500 | [diff] [blame] | 89 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
Sergiy Kovalchuk | 7d2b451 | 2009-12-27 09:13:41 -0800 | [diff] [blame] | 90 | enum { |
| 91 | USB_XU_CLOCK_RATE = 0xe301, |
| 92 | USB_XU_CLOCK_SOURCE = 0xe302, |
| 93 | USB_XU_DIGITAL_IO_STATUS = 0xe303, |
| 94 | USB_XU_DEVICE_OPTIONS = 0xe304, |
| 95 | USB_XU_DIRECT_MONITORING = 0xe305, |
| 96 | USB_XU_METERING = 0xe306 |
| 97 | }; |
| 98 | enum { |
| 99 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ |
| 100 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ |
| 101 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ |
| 102 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ |
| 103 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
| 105 | /* |
| 106 | * manual mapping of mixer names |
| 107 | * if the mixer topology is too complicated and the parsed names are |
| 108 | * ambiguous, add the entries in usbmixer_maps.c. |
| 109 | */ |
Daniel Mack | f0b5e63 | 2010-03-11 21:13:23 +0100 | [diff] [blame] | 110 | #include "mixer_maps.c" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 112 | static const struct usbmix_name_map * |
| 113 | find_map(struct mixer_build *state, int unitid, int control) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | { |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 115 | const struct usbmix_name_map *p = state->map; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 117 | if (!p) |
| 118 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
| 120 | for (p = state->map; p->id; p++) { |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 121 | if (p->id == unitid && |
| 122 | (!control || !p->control || control == p->control)) |
| 123 | return p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 125 | return NULL; |
| 126 | } |
| 127 | |
| 128 | /* get the mapped name if the unit matches */ |
| 129 | static int |
| 130 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) |
| 131 | { |
| 132 | if (!p || !p->name) |
| 133 | return 0; |
| 134 | |
| 135 | buflen--; |
| 136 | return strlcpy(buf, p->name, buflen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | /* check whether the control should be ignored */ |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 140 | static inline int |
| 141 | check_ignored_ctl(const struct usbmix_name_map *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | { |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 143 | if (!p || p->name || p->dB) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | return 0; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 145 | return 1; |
| 146 | } |
| 147 | |
| 148 | /* dB mapping */ |
| 149 | static inline void check_mapped_dB(const struct usbmix_name_map *p, |
| 150 | struct usb_mixer_elem_info *cval) |
| 151 | { |
| 152 | if (p && p->dB) { |
| 153 | cval->dBmin = p->dB->min; |
| 154 | cval->dBmax = p->dB->max; |
Takashi Iwai | 38b6519 | 2011-08-19 07:55:10 +0200 | [diff] [blame] | 155 | cval->initialized = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | } |
| 158 | |
Clemens Ladisch | 8e062ec | 2005-04-22 15:49:52 +0200 | [diff] [blame] | 159 | /* get the mapped selector source name */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 160 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
Clemens Ladisch | 8e062ec | 2005-04-22 15:49:52 +0200 | [diff] [blame] | 161 | int index, char *buf, int buflen) |
| 162 | { |
| 163 | const struct usbmix_selector_map *p; |
| 164 | |
| 165 | if (! state->selector_map) |
| 166 | return 0; |
| 167 | for (p = state->selector_map; p->id; p++) { |
| 168 | if (p->id == unitid && index < p->count) |
| 169 | return strlcpy(buf, p->names[index], buflen); |
| 170 | } |
| 171 | return 0; |
| 172 | } |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | /* |
| 175 | * find an audio control unit with the given unit id |
| 176 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 177 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | { |
Daniel Mack | 67e1daa | 2010-05-31 13:35:43 +0200 | [diff] [blame] | 179 | /* we just parse the header */ |
| 180 | struct uac_feature_unit_descriptor *hdr = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | |
Daniel Mack | 67e1daa | 2010-05-31 13:35:43 +0200 | [diff] [blame] | 182 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, |
| 183 | USB_DT_CS_INTERFACE)) != NULL) { |
| 184 | if (hdr->bLength >= 4 && |
| 185 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && |
| 186 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && |
| 187 | hdr->bUnitID == unit) |
| 188 | return hdr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | } |
Daniel Mack | 67e1daa | 2010-05-31 13:35:43 +0200 | [diff] [blame] | 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | return NULL; |
| 192 | } |
| 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | /* |
| 195 | * copy a string with the given id |
| 196 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 197 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | { |
| 199 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); |
| 200 | buf[len] = 0; |
| 201 | return len; |
| 202 | } |
| 203 | |
| 204 | /* |
| 205 | * convert from the byte/word on usb descriptor to the zero-based integer |
| 206 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 207 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | { |
| 209 | switch (cval->val_type) { |
| 210 | case USB_MIXER_BOOLEAN: |
| 211 | return !!val; |
| 212 | case USB_MIXER_INV_BOOLEAN: |
| 213 | return !val; |
| 214 | case USB_MIXER_U8: |
| 215 | val &= 0xff; |
| 216 | break; |
| 217 | case USB_MIXER_S8: |
| 218 | val &= 0xff; |
| 219 | if (val >= 0x80) |
| 220 | val -= 0x100; |
| 221 | break; |
| 222 | case USB_MIXER_U16: |
| 223 | val &= 0xffff; |
| 224 | break; |
| 225 | case USB_MIXER_S16: |
| 226 | val &= 0xffff; |
| 227 | if (val >= 0x8000) |
| 228 | val -= 0x10000; |
| 229 | break; |
| 230 | } |
| 231 | return val; |
| 232 | } |
| 233 | |
| 234 | /* |
| 235 | * convert from the zero-based int to the byte/word for usb descriptor |
| 236 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 237 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | { |
| 239 | switch (cval->val_type) { |
| 240 | case USB_MIXER_BOOLEAN: |
| 241 | return !!val; |
| 242 | case USB_MIXER_INV_BOOLEAN: |
| 243 | return !val; |
| 244 | case USB_MIXER_S8: |
| 245 | case USB_MIXER_U8: |
| 246 | return val & 0xff; |
| 247 | case USB_MIXER_S16: |
| 248 | case USB_MIXER_U16: |
| 249 | return val & 0xffff; |
| 250 | } |
| 251 | return 0; /* not reached */ |
| 252 | } |
| 253 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 254 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | { |
| 256 | if (! cval->res) |
| 257 | cval->res = 1; |
| 258 | if (val < cval->min) |
| 259 | return 0; |
Takashi Iwai | 14790f1 | 2006-03-28 17:58:28 +0200 | [diff] [blame] | 260 | else if (val >= cval->max) |
| 261 | return (cval->max - cval->min + cval->res - 1) / cval->res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | else |
| 263 | return (val - cval->min) / cval->res; |
| 264 | } |
| 265 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 266 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | { |
| 268 | if (val < 0) |
| 269 | return cval->min; |
| 270 | if (! cval->res) |
| 271 | cval->res = 1; |
| 272 | val *= cval->res; |
| 273 | val += cval->min; |
| 274 | if (val > cval->max) |
| 275 | return cval->max; |
| 276 | return val; |
| 277 | } |
| 278 | |
| 279 | |
| 280 | /* |
| 281 | * retrieve a mixer value |
| 282 | */ |
| 283 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 284 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | { |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 286 | struct snd_usb_audio *chip = cval->mixer->chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | unsigned char buf[2]; |
| 288 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; |
| 289 | int timeout = 10; |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 290 | int idx = 0, err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 292 | err = snd_usb_autoresume(cval->mixer->chip); |
| 293 | if (err < 0) |
| 294 | return -EIO; |
Takashi Iwai | 34f3c89 | 2012-10-15 12:16:02 +0200 | [diff] [blame] | 295 | down_read(&chip->shutdown_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | while (timeout-- > 0) { |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 297 | if (chip->shutdown) |
| 298 | break; |
| 299 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 300 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 302 | validx, idx, buf, val_len) >= val_len) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 304 | err = 0; |
| 305 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 308 | snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 309 | request, validx, idx, cval->val_type); |
| 310 | err = -EINVAL; |
| 311 | |
| 312 | out: |
Takashi Iwai | 34f3c89 | 2012-10-15 12:16:02 +0200 | [diff] [blame] | 313 | up_read(&chip->shutdown_rwsem); |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 314 | snd_usb_autosuspend(cval->mixer->chip); |
| 315 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | } |
| 317 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 318 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
| 319 | { |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 320 | struct snd_usb_audio *chip = cval->mixer->chip; |
Daniel Mack | e8bdb6b | 2010-06-11 17:34:22 +0200 | [diff] [blame] | 321 | unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 322 | unsigned char *val; |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 323 | int idx = 0, ret, size; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 324 | __u8 bRequest; |
| 325 | |
Daniel Mack | e8bdb6b | 2010-06-11 17:34:22 +0200 | [diff] [blame] | 326 | if (request == UAC_GET_CUR) { |
| 327 | bRequest = UAC2_CS_CUR; |
| 328 | size = sizeof(__u16); |
| 329 | } else { |
| 330 | bRequest = UAC2_CS_RANGE; |
| 331 | size = sizeof(buf); |
| 332 | } |
| 333 | |
| 334 | memset(buf, 0, sizeof(buf)); |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 335 | |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 336 | ret = snd_usb_autoresume(chip) ? -EIO : 0; |
| 337 | if (ret) |
| 338 | goto error; |
| 339 | |
Takashi Iwai | 34f3c89 | 2012-10-15 12:16:02 +0200 | [diff] [blame] | 340 | down_read(&chip->shutdown_rwsem); |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 341 | if (chip->shutdown) |
| 342 | ret = -ENODEV; |
| 343 | else { |
| 344 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); |
| 345 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 346 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 347 | validx, idx, buf, size); |
| 348 | } |
Takashi Iwai | 34f3c89 | 2012-10-15 12:16:02 +0200 | [diff] [blame] | 349 | up_read(&chip->shutdown_rwsem); |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 350 | snd_usb_autosuspend(chip); |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 351 | |
| 352 | if (ret < 0) { |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 353 | error: |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 354 | snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 355 | request, validx, idx, cval->val_type); |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 356 | return ret; |
| 357 | } |
| 358 | |
Daniel Mack | e8bdb6b | 2010-06-11 17:34:22 +0200 | [diff] [blame] | 359 | /* FIXME: how should we handle multiple triplets here? */ |
| 360 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 361 | switch (request) { |
| 362 | case UAC_GET_CUR: |
| 363 | val = buf; |
| 364 | break; |
| 365 | case UAC_GET_MIN: |
| 366 | val = buf + sizeof(__u16); |
| 367 | break; |
| 368 | case UAC_GET_MAX: |
| 369 | val = buf + sizeof(__u16) * 2; |
| 370 | break; |
| 371 | case UAC_GET_RES: |
| 372 | val = buf + sizeof(__u16) * 3; |
| 373 | break; |
| 374 | default: |
| 375 | return -EINVAL; |
| 376 | } |
| 377 | |
| 378 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); |
| 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
| 384 | { |
Eldad Zack | 9f81410 | 2012-11-28 23:55:35 +0100 | [diff] [blame] | 385 | validx += cval->idx_off; |
| 386 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 387 | return (cval->mixer->protocol == UAC_VERSION_1) ? |
| 388 | get_ctl_value_v1(cval, request, validx, value_ret) : |
| 389 | get_ctl_value_v2(cval, request, validx, value_ret); |
| 390 | } |
| 391 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 392 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | { |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 394 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | } |
| 396 | |
| 397 | /* channel = 0: master, 1 = first channel */ |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 398 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
| 399 | int channel, int *value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | { |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 401 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | } |
| 403 | |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 404 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
| 405 | int channel, int index, int *value) |
| 406 | { |
| 407 | int err; |
| 408 | |
| 409 | if (cval->cached & (1 << channel)) { |
| 410 | *value = cval->cache_val[index]; |
| 411 | return 0; |
| 412 | } |
| 413 | err = get_cur_mix_raw(cval, channel, value); |
| 414 | if (err < 0) { |
| 415 | if (!cval->mixer->ignore_ctl_error) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 416 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 417 | cval->control, channel, err); |
| 418 | return err; |
| 419 | } |
| 420 | cval->cached |= 1 << channel; |
| 421 | cval->cache_val[index] = *value; |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | /* |
| 427 | * set a mixer value |
| 428 | */ |
| 429 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 430 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
| 431 | int request, int validx, int value_set) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | { |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 433 | struct snd_usb_audio *chip = cval->mixer->chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | unsigned char buf[2]; |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 435 | int idx = 0, val_len, err, timeout = 10; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 436 | |
Eldad Zack | 9f81410 | 2012-11-28 23:55:35 +0100 | [diff] [blame] | 437 | validx += cval->idx_off; |
| 438 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 439 | if (cval->mixer->protocol == UAC_VERSION_1) { |
| 440 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; |
| 441 | } else { /* UAC_VERSION_2 */ |
| 442 | /* audio class v2 controls are always 2 bytes in size */ |
| 443 | val_len = sizeof(__u16); |
| 444 | |
| 445 | /* FIXME */ |
| 446 | if (request != UAC_SET_CUR) { |
| 447 | snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); |
| 448 | return -EINVAL; |
| 449 | } |
| 450 | |
| 451 | request = UAC2_CS_CUR; |
| 452 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | |
| 454 | value_set = convert_bytes_value(cval, value_set); |
| 455 | buf[0] = value_set & 0xff; |
| 456 | buf[1] = (value_set >> 8) & 0xff; |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 457 | err = snd_usb_autoresume(chip); |
| 458 | if (err < 0) |
| 459 | return -EIO; |
Takashi Iwai | 34f3c89 | 2012-10-15 12:16:02 +0200 | [diff] [blame] | 460 | down_read(&chip->shutdown_rwsem); |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 461 | while (timeout-- > 0) { |
| 462 | if (chip->shutdown) |
| 463 | break; |
| 464 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 465 | if (snd_usb_ctl_msg(chip->dev, |
| 466 | usb_sndctrlpipe(chip->dev, 0), request, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 468 | validx, idx, buf, val_len) >= 0) { |
| 469 | err = 0; |
| 470 | goto out; |
Oliver Neukum | 88a8516 | 2011-03-11 14:51:12 +0100 | [diff] [blame] | 471 | } |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 472 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 473 | snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 474 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
| 475 | err = -EINVAL; |
| 476 | |
| 477 | out: |
Takashi Iwai | 34f3c89 | 2012-10-15 12:16:02 +0200 | [diff] [blame] | 478 | up_read(&chip->shutdown_rwsem); |
Takashi Iwai | 978520b | 2012-10-12 15:12:55 +0200 | [diff] [blame] | 479 | snd_usb_autosuspend(chip); |
| 480 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | } |
| 482 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 483 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | { |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 485 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 488 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
| 489 | int index, int value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | { |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 491 | int err; |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 492 | unsigned int read_only = (channel == 0) ? |
| 493 | cval->master_readonly : |
| 494 | cval->ch_readonly & (1 << (channel - 1)); |
| 495 | |
| 496 | if (read_only) { |
| 497 | snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", |
| 498 | __func__, channel, cval->control); |
| 499 | return 0; |
| 500 | } |
| 501 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 502 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 503 | value); |
| 504 | if (err < 0) |
| 505 | return err; |
| 506 | cval->cached |= 1 << channel; |
| 507 | cval->cache_val[index] = value; |
| 508 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | } |
| 510 | |
Takashi Iwai | 7bc5ba7e | 2006-07-14 15:18:19 +0200 | [diff] [blame] | 511 | /* |
| 512 | * TLV callback for mixer volume controls |
| 513 | */ |
Felix Homann | 285de9c | 2012-04-23 20:24:24 +0200 | [diff] [blame] | 514 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
Takashi Iwai | 7bc5ba7e | 2006-07-14 15:18:19 +0200 | [diff] [blame] | 515 | unsigned int size, unsigned int __user *_tlv) |
| 516 | { |
| 517 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Takashi Iwai | b8e1c73 | 2009-06-16 14:04:37 +0200 | [diff] [blame] | 518 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
Takashi Iwai | 7bc5ba7e | 2006-07-14 15:18:19 +0200 | [diff] [blame] | 519 | |
| 520 | if (size < sizeof(scale)) |
| 521 | return -ENOMEM; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 522 | scale[2] = cval->dBmin; |
| 523 | scale[3] = cval->dBmax; |
Takashi Iwai | 7bc5ba7e | 2006-07-14 15:18:19 +0200 | [diff] [blame] | 524 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
| 525 | return -EFAULT; |
| 526 | return 0; |
| 527 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
| 529 | /* |
| 530 | * parser routines begin here... |
| 531 | */ |
| 532 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 533 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | |
| 535 | |
| 536 | /* |
| 537 | * check if the input/output channel routing is enabled on the given bitmap. |
| 538 | * used for mixer unit parser |
| 539 | */ |
| 540 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) |
| 541 | { |
| 542 | int idx = ich * num_outs + och; |
| 543 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); |
| 544 | } |
| 545 | |
| 546 | |
| 547 | /* |
| 548 | * add an alsa control element |
| 549 | * search and increment the index until an empty slot is found. |
| 550 | * |
| 551 | * if failed, give up and free the control instance. |
| 552 | */ |
| 553 | |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 554 | int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
| 555 | struct snd_kcontrol *kctl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 557 | struct usb_mixer_elem_info *cval = kctl->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | int err; |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 559 | |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 560 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | kctl->id.index++; |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 562 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 564 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | } |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 566 | cval->elem_id = &kctl->id; |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 567 | cval->next_id_elem = mixer->id_elems[cval->id]; |
| 568 | mixer->id_elems[cval->id] = cval; |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 569 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | } |
| 571 | |
| 572 | |
| 573 | /* |
| 574 | * get a terminal name string |
| 575 | */ |
| 576 | |
| 577 | static struct iterm_name_combo { |
| 578 | int type; |
| 579 | char *name; |
| 580 | } iterm_names[] = { |
| 581 | { 0x0300, "Output" }, |
| 582 | { 0x0301, "Speaker" }, |
| 583 | { 0x0302, "Headphone" }, |
| 584 | { 0x0303, "HMD Audio" }, |
| 585 | { 0x0304, "Desktop Speaker" }, |
| 586 | { 0x0305, "Room Speaker" }, |
| 587 | { 0x0306, "Com Speaker" }, |
| 588 | { 0x0307, "LFE" }, |
| 589 | { 0x0600, "External In" }, |
| 590 | { 0x0601, "Analog In" }, |
| 591 | { 0x0602, "Digital In" }, |
| 592 | { 0x0603, "Line" }, |
| 593 | { 0x0604, "Legacy In" }, |
| 594 | { 0x0605, "IEC958 In" }, |
| 595 | { 0x0606, "1394 DA Stream" }, |
| 596 | { 0x0607, "1394 DV Stream" }, |
| 597 | { 0x0700, "Embedded" }, |
| 598 | { 0x0701, "Noise Source" }, |
| 599 | { 0x0702, "Equalization Noise" }, |
| 600 | { 0x0703, "CD" }, |
| 601 | { 0x0704, "DAT" }, |
| 602 | { 0x0705, "DCC" }, |
| 603 | { 0x0706, "MiniDisk" }, |
| 604 | { 0x0707, "Analog Tape" }, |
| 605 | { 0x0708, "Phonograph" }, |
| 606 | { 0x0709, "VCR Audio" }, |
| 607 | { 0x070a, "Video Disk Audio" }, |
| 608 | { 0x070b, "DVD Audio" }, |
| 609 | { 0x070c, "TV Tuner Audio" }, |
| 610 | { 0x070d, "Satellite Rec Audio" }, |
| 611 | { 0x070e, "Cable Tuner Audio" }, |
| 612 | { 0x070f, "DSS Audio" }, |
| 613 | { 0x0710, "Radio Receiver" }, |
| 614 | { 0x0711, "Radio Transmitter" }, |
| 615 | { 0x0712, "Multi-Track Recorder" }, |
| 616 | { 0x0713, "Synthesizer" }, |
| 617 | { 0 }, |
| 618 | }; |
| 619 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 620 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | unsigned char *name, int maxlen, int term_only) |
| 622 | { |
| 623 | struct iterm_name_combo *names; |
| 624 | |
| 625 | if (iterm->name) |
| 626 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); |
| 627 | |
| 628 | /* virtual type - not a real terminal */ |
| 629 | if (iterm->type >> 16) { |
| 630 | if (term_only) |
| 631 | return 0; |
| 632 | switch (iterm->type >> 16) { |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 633 | case UAC_SELECTOR_UNIT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | strcpy(name, "Selector"); return 8; |
Daniel Mack | 69da9bc | 2010-06-16 17:57:28 +0200 | [diff] [blame] | 635 | case UAC1_PROCESSING_UNIT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | strcpy(name, "Process Unit"); return 12; |
Daniel Mack | 69da9bc | 2010-06-16 17:57:28 +0200 | [diff] [blame] | 637 | case UAC1_EXTENSION_UNIT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | strcpy(name, "Ext Unit"); return 8; |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 639 | case UAC_MIXER_UNIT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | strcpy(name, "Mixer"); return 5; |
| 641 | default: |
| 642 | return sprintf(name, "Unit %d", iterm->id); |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | switch (iterm->type & 0xff00) { |
| 647 | case 0x0100: |
| 648 | strcpy(name, "PCM"); return 3; |
| 649 | case 0x0200: |
| 650 | strcpy(name, "Mic"); return 3; |
| 651 | case 0x0400: |
| 652 | strcpy(name, "Headset"); return 7; |
| 653 | case 0x0500: |
| 654 | strcpy(name, "Phone"); return 5; |
| 655 | } |
| 656 | |
| 657 | for (names = iterm_names; names->type; names++) |
| 658 | if (names->type == iterm->type) { |
| 659 | strcpy(name, names->name); |
| 660 | return strlen(names->name); |
| 661 | } |
| 662 | return 0; |
| 663 | } |
| 664 | |
| 665 | |
| 666 | /* |
| 667 | * parse the source unit recursively until it reaches to a terminal |
| 668 | * or a branched unit. |
| 669 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 670 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | { |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 672 | int err; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 673 | void *p1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | |
| 675 | memset(term, 0, sizeof(*term)); |
| 676 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 677 | unsigned char *hdr = p1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | term->id = id; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 679 | switch (hdr[2]) { |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 680 | case UAC_INPUT_TERMINAL: |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 681 | if (state->mixer->protocol == UAC_VERSION_1) { |
| 682 | struct uac_input_terminal_descriptor *d = p1; |
| 683 | term->type = le16_to_cpu(d->wTerminalType); |
| 684 | term->channels = d->bNrChannels; |
| 685 | term->chconfig = le16_to_cpu(d->wChannelConfig); |
| 686 | term->name = d->iTerminal; |
| 687 | } else { /* UAC_VERSION_2 */ |
| 688 | struct uac2_input_terminal_descriptor *d = p1; |
| 689 | term->type = le16_to_cpu(d->wTerminalType); |
| 690 | term->channels = d->bNrChannels; |
| 691 | term->chconfig = le32_to_cpu(d->bmChannelConfig); |
| 692 | term->name = d->iTerminal; |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 693 | |
| 694 | /* call recursively to get the clock selectors */ |
| 695 | err = check_input_term(state, d->bCSourceID, term); |
| 696 | if (err < 0) |
| 697 | return err; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 698 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | return 0; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 700 | case UAC_FEATURE_UNIT: { |
| 701 | /* the header is the same for v1 and v2 */ |
| 702 | struct uac_feature_unit_descriptor *d = p1; |
Daniel Mack | 5e68888 | 2010-05-08 11:24:56 +0200 | [diff] [blame] | 703 | id = d->bSourceID; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | break; /* continue to parse */ |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 705 | } |
| 706 | case UAC_MIXER_UNIT: { |
| 707 | struct uac_mixer_unit_descriptor *d = p1; |
| 708 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
| 709 | term->channels = uac_mixer_unit_bNrChannels(d); |
| 710 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); |
| 711 | term->name = uac_mixer_unit_iMixer(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | return 0; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 713 | } |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 714 | case UAC_SELECTOR_UNIT: |
| 715 | case UAC2_CLOCK_SELECTOR: { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 716 | struct uac_selector_unit_descriptor *d = p1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | /* call recursively to retrieve the channel info */ |
Daniel Mack | 4d7b86c | 2013-03-19 21:09:24 +0100 | [diff] [blame] | 718 | err = check_input_term(state, d->baSourceID[0], term); |
| 719 | if (err < 0) |
| 720 | return err; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 721 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | term->id = id; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 723 | term->name = uac_selector_unit_iSelector(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | return 0; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 725 | } |
Daniel Mack | 69da9bc | 2010-06-16 17:57:28 +0200 | [diff] [blame] | 726 | case UAC1_PROCESSING_UNIT: |
Eldad Zack | 5dae5fd | 2012-11-28 23:55:36 +0100 | [diff] [blame] | 727 | case UAC1_EXTENSION_UNIT: |
| 728 | /* UAC2_PROCESSING_UNIT_V2 */ |
Torstein Hegge | 61ac513 | 2013-03-19 17:12:14 +0100 | [diff] [blame] | 729 | /* UAC2_EFFECT_UNIT */ |
| 730 | case UAC2_EXTENSION_UNIT_V2: { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 731 | struct uac_processing_unit_descriptor *d = p1; |
Eldad Zack | 5dae5fd | 2012-11-28 23:55:36 +0100 | [diff] [blame] | 732 | |
| 733 | if (state->mixer->protocol == UAC_VERSION_2 && |
| 734 | hdr[2] == UAC2_EFFECT_UNIT) { |
| 735 | /* UAC2/UAC1 unit IDs overlap here in an |
| 736 | * uncompatible way. Ignore this unit for now. |
| 737 | */ |
| 738 | return 0; |
| 739 | } |
| 740 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 741 | if (d->bNrInPins) { |
| 742 | id = d->baSourceID[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | break; /* continue to parse */ |
| 744 | } |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 745 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
| 746 | term->channels = uac_processing_unit_bNrChannels(d); |
| 747 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); |
| 748 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | return 0; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 750 | } |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 751 | case UAC2_CLOCK_SOURCE: { |
| 752 | struct uac_clock_source_descriptor *d = p1; |
| 753 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
| 754 | term->id = id; |
| 755 | term->name = d->iClockSource; |
| 756 | return 0; |
| 757 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | default: |
| 759 | return -ENODEV; |
| 760 | } |
| 761 | } |
| 762 | return -ENODEV; |
| 763 | } |
| 764 | |
| 765 | |
| 766 | /* |
| 767 | * Feature Unit |
| 768 | */ |
| 769 | |
| 770 | /* feature unit control information */ |
| 771 | struct usb_feature_control_info { |
| 772 | const char *name; |
| 773 | unsigned int type; /* control type (mute, volume, etc.) */ |
| 774 | }; |
| 775 | |
| 776 | static struct usb_feature_control_info audio_feature_info[] = { |
Daniel Mack | 2e0281d | 2010-05-31 13:35:42 +0200 | [diff] [blame] | 777 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
| 778 | { "Volume", USB_MIXER_S16 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | { "Tone Control - Bass", USB_MIXER_S8 }, |
| 780 | { "Tone Control - Mid", USB_MIXER_S8 }, |
| 781 | { "Tone Control - Treble", USB_MIXER_S8 }, |
| 782 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ |
Daniel Mack | 2e0281d | 2010-05-31 13:35:42 +0200 | [diff] [blame] | 783 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
| 784 | { "Delay Control", USB_MIXER_U16 }, |
| 785 | { "Bass Boost", USB_MIXER_BOOLEAN }, |
| 786 | { "Loudness", USB_MIXER_BOOLEAN }, |
| 787 | /* UAC2 specific */ |
| 788 | { "Input Gain Control", USB_MIXER_U16 }, |
| 789 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, |
| 790 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | }; |
| 792 | |
| 793 | |
| 794 | /* private_free callback */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 795 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | { |
Jesper Juhl | 4d57277 | 2005-05-30 17:30:32 +0200 | [diff] [blame] | 797 | kfree(kctl->private_data); |
| 798 | kctl->private_data = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | } |
| 800 | |
| 801 | |
| 802 | /* |
| 803 | * interface to ALSA control for feature/mixer units |
| 804 | */ |
| 805 | |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 806 | /* volume control quirks */ |
| 807 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, |
| 808 | struct snd_kcontrol *kctl) |
| 809 | { |
| 810 | switch (cval->mixer->chip->usb_id) { |
Eldad Zack | d50ed62 | 2012-11-28 23:55:39 +0100 | [diff] [blame] | 811 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
Matt Gruskin | e9a25e0 | 2013-02-09 12:56:35 -0500 | [diff] [blame] | 812 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
Eldad Zack | d50ed62 | 2012-11-28 23:55:39 +0100 | [diff] [blame] | 813 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
| 814 | cval->min = 0x0000; |
| 815 | cval->max = 0xffff; |
| 816 | cval->res = 0x00e6; |
| 817 | break; |
| 818 | } |
| 819 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || |
| 820 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { |
| 821 | cval->min = 0x00; |
| 822 | cval->max = 0xff; |
| 823 | break; |
| 824 | } |
| 825 | if (strstr(kctl->id.name, "Effect Return") != NULL) { |
| 826 | cval->min = 0xb706; |
| 827 | cval->max = 0xff7b; |
| 828 | cval->res = 0x0073; |
| 829 | break; |
| 830 | } |
| 831 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || |
| 832 | (strstr(kctl->id.name, "Effect Send") != NULL)) { |
| 833 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ |
| 834 | cval->max = 0xfcfe; |
| 835 | cval->res = 0x0073; |
| 836 | } |
| 837 | break; |
| 838 | |
Felix Homann | d34bf14 | 2012-04-23 20:24:27 +0200 | [diff] [blame] | 839 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
| 840 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ |
| 841 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
| 842 | snd_printk(KERN_INFO |
| 843 | "usb-audio: set quirk for FTU Effect Duration\n"); |
| 844 | cval->min = 0x0000; |
| 845 | cval->max = 0x7f00; |
| 846 | cval->res = 0x0100; |
| 847 | break; |
| 848 | } |
| 849 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || |
| 850 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { |
| 851 | snd_printk(KERN_INFO |
| 852 | "usb-audio: set quirks for FTU Effect Feedback/Volume\n"); |
| 853 | cval->min = 0x00; |
| 854 | cval->max = 0x7f; |
| 855 | break; |
| 856 | } |
| 857 | break; |
| 858 | |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 859 | case USB_ID(0x0471, 0x0101): |
| 860 | case USB_ID(0x0471, 0x0104): |
| 861 | case USB_ID(0x0471, 0x0105): |
| 862 | case USB_ID(0x0672, 0x1041): |
| 863 | /* quirk for UDA1321/N101. |
| 864 | * note that detection between firmware 2.1.1.7 (N101) |
| 865 | * and later 2.1.1.21 is not very clear from datasheets. |
| 866 | * I hope that the min value is -15360 for newer firmware --jk |
| 867 | */ |
| 868 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && |
| 869 | cval->min == -15616) { |
| 870 | snd_printk(KERN_INFO |
| 871 | "set volume quirk for UDA1321/N101 chip\n"); |
| 872 | cval->max = -256; |
| 873 | } |
| 874 | break; |
| 875 | |
| 876 | case USB_ID(0x046d, 0x09a4): |
| 877 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { |
| 878 | snd_printk(KERN_INFO |
| 879 | "set volume quirk for QuickCam E3500\n"); |
| 880 | cval->min = 6080; |
| 881 | cval->max = 8768; |
| 882 | cval->res = 192; |
| 883 | } |
| 884 | break; |
| 885 | |
| 886 | case USB_ID(0x046d, 0x0808): |
| 887 | case USB_ID(0x046d, 0x0809): |
Alexey Fisher | 55c0008 | 2011-11-09 11:39:24 +0100 | [diff] [blame] | 888 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
Takashi Iwai | 11e7064 | 2013-06-05 08:35:26 +0200 | [diff] [blame] | 889 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 890 | case USB_ID(0x046d, 0x0991): |
| 891 | /* Most audio usb devices lie about volume resolution. |
| 892 | * Most Logitech webcams have res = 384. |
| 893 | * Proboly there is some logitech magic behind this number --fishor |
| 894 | */ |
| 895 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { |
| 896 | snd_printk(KERN_INFO |
| 897 | "set resolution quirk: cval->res = 384\n"); |
| 898 | cval->res = 384; |
| 899 | } |
| 900 | break; |
| 901 | |
| 902 | } |
| 903 | } |
| 904 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | /* |
| 906 | * retrieve the minimum and maximum values for the specified control |
| 907 | */ |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 908 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
| 909 | int default_min, struct snd_kcontrol *kctl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | { |
| 911 | /* for failsafe */ |
| 912 | cval->min = default_min; |
| 913 | cval->max = cval->min + 1; |
| 914 | cval->res = 1; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 915 | cval->dBmin = cval->dBmax = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | |
| 917 | if (cval->val_type == USB_MIXER_BOOLEAN || |
| 918 | cval->val_type == USB_MIXER_INV_BOOLEAN) { |
| 919 | cval->initialized = 1; |
| 920 | } else { |
| 921 | int minchn = 0; |
| 922 | if (cval->cmask) { |
| 923 | int i; |
| 924 | for (i = 0; i < MAX_CHANNELS; i++) |
| 925 | if (cval->cmask & (1 << i)) { |
| 926 | minchn = i + 1; |
| 927 | break; |
| 928 | } |
| 929 | } |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 930 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
| 931 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 932 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", |
Takashi Iwai | 1a4e34e | 2010-09-16 07:42:34 +0200 | [diff] [blame] | 933 | cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | return -EINVAL; |
| 935 | } |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 936 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | cval->res = 1; |
| 938 | } else { |
| 939 | int last_valid_res = cval->res; |
| 940 | |
| 941 | while (cval->res > 1) { |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 942 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
| 943 | (cval->control << 8) | minchn, cval->res / 2) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | break; |
| 945 | cval->res /= 2; |
| 946 | } |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 947 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | cval->res = last_valid_res; |
| 949 | } |
| 950 | if (cval->res == 0) |
| 951 | cval->res = 1; |
Takashi Iwai | 14790f1 | 2006-03-28 17:58:28 +0200 | [diff] [blame] | 952 | |
| 953 | /* Additional checks for the proper resolution |
| 954 | * |
| 955 | * Some devices report smaller resolutions than actually |
| 956 | * reacting. They don't return errors but simply clip |
| 957 | * to the lower aligned value. |
| 958 | */ |
| 959 | if (cval->min + cval->res < cval->max) { |
| 960 | int last_valid_res = cval->res; |
| 961 | int saved, test, check; |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 962 | get_cur_mix_raw(cval, minchn, &saved); |
Takashi Iwai | 14790f1 | 2006-03-28 17:58:28 +0200 | [diff] [blame] | 963 | for (;;) { |
| 964 | test = saved; |
| 965 | if (test < cval->max) |
| 966 | test += cval->res; |
| 967 | else |
| 968 | test -= cval->res; |
| 969 | if (test < cval->min || test > cval->max || |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 970 | set_cur_mix_value(cval, minchn, 0, test) || |
| 971 | get_cur_mix_raw(cval, minchn, &check)) { |
Takashi Iwai | 14790f1 | 2006-03-28 17:58:28 +0200 | [diff] [blame] | 972 | cval->res = last_valid_res; |
| 973 | break; |
| 974 | } |
| 975 | if (test == check) |
| 976 | break; |
| 977 | cval->res *= 2; |
| 978 | } |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 979 | set_cur_mix_value(cval, minchn, 0, saved); |
Takashi Iwai | 14790f1 | 2006-03-28 17:58:28 +0200 | [diff] [blame] | 980 | } |
| 981 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | cval->initialized = 1; |
| 983 | } |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 984 | |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 985 | if (kctl) |
| 986 | volume_control_quirks(cval, kctl); |
| 987 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 988 | /* USB descriptions contain the dB scale in 1/256 dB unit |
| 989 | * while ALSA TLV contains in 1/100 dB unit |
| 990 | */ |
| 991 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; |
| 992 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; |
| 993 | if (cval->dBmin > cval->dBmax) { |
| 994 | /* something is wrong; assume it's either from/to 0dB */ |
| 995 | if (cval->dBmin < 0) |
| 996 | cval->dBmax = 0; |
| 997 | else if (cval->dBmin > 0) |
| 998 | cval->dBmin = 0; |
| 999 | if (cval->dBmin > cval->dBmax) { |
| 1000 | /* totally crap, return an error */ |
| 1001 | return -EINVAL; |
| 1002 | } |
| 1003 | } |
| 1004 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | return 0; |
| 1006 | } |
| 1007 | |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 1008 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | |
| 1010 | /* get a feature/mixer unit info */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1011 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1013 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | |
| 1015 | if (cval->val_type == USB_MIXER_BOOLEAN || |
| 1016 | cval->val_type == USB_MIXER_INV_BOOLEAN) |
| 1017 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 1018 | else |
| 1019 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 1020 | uinfo->count = cval->channels; |
| 1021 | if (cval->val_type == USB_MIXER_BOOLEAN || |
| 1022 | cval->val_type == USB_MIXER_INV_BOOLEAN) { |
| 1023 | uinfo->value.integer.min = 0; |
| 1024 | uinfo->value.integer.max = 1; |
| 1025 | } else { |
Takashi Iwai | 9fcd0ab | 2011-08-19 08:30:53 +0200 | [diff] [blame] | 1026 | if (!cval->initialized) { |
Takashi Iwai | dcaaf9f | 2011-11-08 17:50:27 +0100 | [diff] [blame] | 1027 | get_min_max_with_quirks(cval, 0, kcontrol); |
Takashi Iwai | 9fcd0ab | 2011-08-19 08:30:53 +0200 | [diff] [blame] | 1028 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
| 1029 | kcontrol->vd[0].access &= |
| 1030 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | |
| 1031 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); |
| 1032 | snd_ctl_notify(cval->mixer->chip->card, |
| 1033 | SNDRV_CTL_EVENT_MASK_INFO, |
| 1034 | &kcontrol->id); |
| 1035 | } |
| 1036 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | uinfo->value.integer.min = 0; |
Takashi Iwai | 14790f1 | 2006-03-28 17:58:28 +0200 | [diff] [blame] | 1038 | uinfo->value.integer.max = |
| 1039 | (cval->max - cval->min + cval->res - 1) / cval->res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | } |
| 1041 | return 0; |
| 1042 | } |
| 1043 | |
| 1044 | /* get the current value from feature/mixer unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1045 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1047 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | int c, cnt, val, err; |
| 1049 | |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1050 | ucontrol->value.integer.value[0] = cval->min; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | if (cval->cmask) { |
| 1052 | cnt = 0; |
| 1053 | for (c = 0; c < MAX_CHANNELS; c++) { |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1054 | if (!(cval->cmask & (1 << c))) |
| 1055 | continue; |
| 1056 | err = get_cur_mix_value(cval, c + 1, cnt, &val); |
| 1057 | if (err < 0) |
| 1058 | return cval->mixer->ignore_ctl_error ? 0 : err; |
| 1059 | val = get_relative_value(cval, val); |
| 1060 | ucontrol->value.integer.value[cnt] = val; |
| 1061 | cnt++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | } |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1063 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | } else { |
| 1065 | /* master channel */ |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1066 | err = get_cur_mix_value(cval, 0, 0, &val); |
| 1067 | if (err < 0) |
| 1068 | return cval->mixer->ignore_ctl_error ? 0 : err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | val = get_relative_value(cval, val); |
| 1070 | ucontrol->value.integer.value[0] = val; |
| 1071 | } |
| 1072 | return 0; |
| 1073 | } |
| 1074 | |
| 1075 | /* put the current value to feature/mixer unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1076 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1078 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | int c, cnt, val, oval, err; |
| 1080 | int changed = 0; |
| 1081 | |
| 1082 | if (cval->cmask) { |
| 1083 | cnt = 0; |
| 1084 | for (c = 0; c < MAX_CHANNELS; c++) { |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1085 | if (!(cval->cmask & (1 << c))) |
| 1086 | continue; |
| 1087 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); |
| 1088 | if (err < 0) |
| 1089 | return cval->mixer->ignore_ctl_error ? 0 : err; |
| 1090 | val = ucontrol->value.integer.value[cnt]; |
| 1091 | val = get_abs_value(cval, val); |
| 1092 | if (oval != val) { |
| 1093 | set_cur_mix_value(cval, c + 1, cnt, val); |
| 1094 | changed = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | } |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1096 | cnt++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | } |
| 1098 | } else { |
| 1099 | /* master channel */ |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1100 | err = get_cur_mix_value(cval, 0, 0, &oval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | if (err < 0) |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1102 | return cval->mixer->ignore_ctl_error ? 0 : err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1103 | val = ucontrol->value.integer.value[0]; |
| 1104 | val = get_abs_value(cval, val); |
| 1105 | if (val != oval) { |
Takashi Iwai | 641b487 | 2009-01-15 17:05:24 +0100 | [diff] [blame] | 1106 | set_cur_mix_value(cval, 0, 0, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | changed = 1; |
| 1108 | } |
| 1109 | } |
| 1110 | return changed; |
| 1111 | } |
| 1112 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1113 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 1115 | .name = "", /* will be filled later manually */ |
| 1116 | .info = mixer_ctl_feature_info, |
| 1117 | .get = mixer_ctl_feature_get, |
| 1118 | .put = mixer_ctl_feature_put, |
| 1119 | }; |
| 1120 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1121 | /* the read-only variant */ |
| 1122 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { |
| 1123 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 1124 | .name = "", /* will be filled later manually */ |
| 1125 | .info = mixer_ctl_feature_info, |
| 1126 | .get = mixer_ctl_feature_get, |
| 1127 | .put = NULL, |
| 1128 | }; |
| 1129 | |
Daniel Mack | 9e38658 | 2011-05-25 09:09:01 +0200 | [diff] [blame] | 1130 | /* This symbol is exported in order to allow the mixer quirks to |
| 1131 | * hook up to the standard feature unit control mechanism */ |
| 1132 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
| 1134 | /* |
| 1135 | * build a feature control |
| 1136 | */ |
| 1137 | |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 1138 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
| 1139 | { |
| 1140 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); |
| 1141 | } |
| 1142 | |
David Henningsson | 9b4ef97 | 2012-11-23 13:48:55 +0100 | [diff] [blame] | 1143 | /* A lot of headsets/headphones have a "Speaker" mixer. Make sure we |
| 1144 | rename it to "Headphone". We determine if something is a headphone |
| 1145 | similar to how udev determines form factor. */ |
| 1146 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
| 1147 | struct snd_card *card) |
| 1148 | { |
| 1149 | const char *names_to_check[] = { |
| 1150 | "Headset", "headset", "Headphone", "headphone", NULL}; |
| 1151 | const char **s; |
| 1152 | bool found = 0; |
| 1153 | |
| 1154 | if (strcmp("Speaker", kctl->id.name)) |
| 1155 | return; |
| 1156 | |
| 1157 | for (s = names_to_check; *s; s++) |
| 1158 | if (strstr(card->shortname, *s)) { |
| 1159 | found = 1; |
| 1160 | break; |
| 1161 | } |
| 1162 | |
| 1163 | if (!found) |
| 1164 | return; |
| 1165 | |
| 1166 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); |
| 1167 | } |
| 1168 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1169 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | unsigned int ctl_mask, int control, |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1171 | struct usb_audio_term *iterm, int unitid, |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1172 | int readonly_mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1173 | { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1174 | struct uac_feature_unit_descriptor *desc = raw_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | unsigned int len = 0; |
| 1176 | int mapped_name = 0; |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1177 | int nameid = uac_feature_unit_iFeature(desc); |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1178 | struct snd_kcontrol *kctl; |
| 1179 | struct usb_mixer_elem_info *cval; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1180 | const struct usbmix_name_map *map; |
Alexey Fisher | 80aceff | 2011-03-10 14:53:38 +0100 | [diff] [blame] | 1181 | unsigned int range; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1182 | |
| 1183 | control++; /* change from zero-based to 1-based value */ |
| 1184 | |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1185 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | /* FIXME: not supported yet */ |
| 1187 | return; |
| 1188 | } |
| 1189 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1190 | map = find_map(state, unitid, control); |
| 1191 | if (check_ignored_ctl(map)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | return; |
| 1193 | |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 1194 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | if (! cval) { |
| 1196 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
| 1197 | return; |
| 1198 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1199 | cval->mixer = state->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | cval->id = unitid; |
| 1201 | cval->control = control; |
| 1202 | cval->cmask = ctl_mask; |
| 1203 | cval->val_type = audio_feature_info[control-1].type; |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1204 | if (ctl_mask == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | cval->channels = 1; /* master channel */ |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1206 | cval->master_readonly = readonly_mask; |
| 1207 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | int i, c = 0; |
| 1209 | for (i = 0; i < 16; i++) |
| 1210 | if (ctl_mask & (1 << i)) |
| 1211 | c++; |
| 1212 | cval->channels = c; |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1213 | cval->ch_readonly = readonly_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | } |
| 1215 | |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1216 | /* if all channels in the mask are marked read-only, make the control |
| 1217 | * read-only. set_cur_mix_value() will check the mask again and won't |
| 1218 | * issue write commands to read-only channels. */ |
| 1219 | if (cval->channels == readonly_mask) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1220 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
| 1221 | else |
| 1222 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); |
| 1223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | if (! kctl) { |
| 1225 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
| 1226 | kfree(cval); |
| 1227 | return; |
| 1228 | } |
| 1229 | kctl->private_free = usb_mixer_elem_free; |
| 1230 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1231 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | mapped_name = len != 0; |
| 1233 | if (! len && nameid) |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1234 | len = snd_usb_copy_string_desc(state, nameid, |
| 1235 | kctl->id.name, sizeof(kctl->id.name)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | |
| 1237 | switch (control) { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1238 | case UAC_FU_MUTE: |
| 1239 | case UAC_FU_VOLUME: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | /* determine the control name. the rule is: |
| 1241 | * - if a name id is given in descriptor, use it. |
| 1242 | * - if the connected input can be determined, then use the name |
| 1243 | * of terminal type. |
| 1244 | * - if the connected output can be determined, use it. |
| 1245 | * - otherwise, anonymous name. |
| 1246 | */ |
| 1247 | if (! len) { |
| 1248 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); |
| 1249 | if (! len) |
| 1250 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); |
| 1251 | if (! len) |
| 1252 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), |
| 1253 | "Feature %d", unitid); |
| 1254 | } |
David Henningsson | 9b4ef97 | 2012-11-23 13:48:55 +0100 | [diff] [blame] | 1255 | |
| 1256 | if (!mapped_name) |
| 1257 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); |
| 1258 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | /* determine the stream direction: |
| 1260 | * if the connected output is USB stream, then it's likely a |
| 1261 | * capture stream. otherwise it should be playback (hopefully :) |
| 1262 | */ |
| 1263 | if (! mapped_name && ! (state->oterm.type >> 16)) { |
| 1264 | if ((state->oterm.type & 0xff00) == 0x0100) { |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 1265 | len = append_ctl_name(kctl, " Capture"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1266 | } else { |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 1267 | len = append_ctl_name(kctl, " Playback"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | } |
| 1269 | } |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1270 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 1271 | " Switch" : " Volume"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | default: |
| 1274 | if (! len) |
| 1275 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
| 1276 | sizeof(kctl->id.name)); |
| 1277 | break; |
| 1278 | } |
| 1279 | |
Takashi Iwai | e182534 | 2012-05-14 17:11:06 +0200 | [diff] [blame] | 1280 | /* get min/max values */ |
| 1281 | get_min_max_with_quirks(cval, 0, kctl); |
| 1282 | |
| 1283 | if (control == UAC_FU_VOLUME) { |
| 1284 | check_mapped_dB(map, cval); |
| 1285 | if (cval->dBmin < cval->dBmax || !cval->initialized) { |
| 1286 | kctl->tlv.c = snd_usb_mixer_vol_tlv; |
| 1287 | kctl->vd[0].access |= |
| 1288 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | |
| 1289 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; |
| 1290 | } |
| 1291 | } |
| 1292 | |
Alexey Fisher | 80aceff | 2011-03-10 14:53:38 +0100 | [diff] [blame] | 1293 | range = (cval->max - cval->min) / cval->res; |
| 1294 | /* Are there devices with volume range more than 255? I use a bit more |
| 1295 | * to be sure. 384 is a resolution magic number found on Logitech |
| 1296 | * devices. It will definitively catch all buggy Logitech devices. |
| 1297 | */ |
| 1298 | if (range > 384) { |
| 1299 | snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big " |
| 1300 | "volume range (=%u), cval->res is probably wrong.", |
| 1301 | range); |
| 1302 | snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, " |
| 1303 | "val = %d/%d/%d", cval->id, |
| 1304 | kctl->id.name, cval->channels, |
| 1305 | cval->min, cval->max, cval->res); |
| 1306 | } |
| 1307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
| 1309 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 1310 | snd_usb_mixer_add_control(state->mixer, kctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | } |
| 1312 | |
| 1313 | |
| 1314 | |
| 1315 | /* |
| 1316 | * parse a feature unit |
| 1317 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1318 | * most of controls are defined here. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1319 | */ |
Daniel Mack | 28e1b77 | 2010-02-22 23:49:09 +0100 | [diff] [blame] | 1320 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1321 | { |
| 1322 | int channels, i, j; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1323 | struct usb_audio_term iterm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | unsigned int master_bits, first_ch_bits; |
| 1325 | int err, csize; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1326 | struct uac_feature_unit_descriptor *hdr = _ftr; |
| 1327 | __u8 *bmaControls; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1329 | if (state->mixer->protocol == UAC_VERSION_1) { |
| 1330 | csize = hdr->bControlSize; |
Nicolai Krakowiak | 60c961a9 | 2011-08-04 15:56:27 +0200 | [diff] [blame] | 1331 | if (!csize) { |
| 1332 | snd_printdd(KERN_ERR "usbaudio: unit %u: " |
| 1333 | "invalid bControlSize == 0\n", unitid); |
| 1334 | return -EINVAL; |
| 1335 | } |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1336 | channels = (hdr->bLength - 7) / csize - 1; |
| 1337 | bmaControls = hdr->bmaControls; |
Clemens Ladisch | d56268f | 2012-11-29 17:04:23 +0100 | [diff] [blame] | 1338 | if (hdr->bLength < 7 + csize) { |
| 1339 | snd_printk(KERN_ERR "usbaudio: unit %u: " |
| 1340 | "invalid UAC_FEATURE_UNIT descriptor\n", |
| 1341 | unitid); |
| 1342 | return -EINVAL; |
| 1343 | } |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1344 | } else { |
| 1345 | struct uac2_feature_unit_descriptor *ftr = _ftr; |
| 1346 | csize = 4; |
Daniel Mack | e8d0fee | 2010-05-27 20:15:14 +0200 | [diff] [blame] | 1347 | channels = (hdr->bLength - 6) / 4 - 1; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1348 | bmaControls = ftr->bmaControls; |
Clemens Ladisch | d56268f | 2012-11-29 17:04:23 +0100 | [diff] [blame] | 1349 | if (hdr->bLength < 6 + csize) { |
| 1350 | snd_printk(KERN_ERR "usbaudio: unit %u: " |
| 1351 | "invalid UAC_FEATURE_UNIT descriptor\n", |
| 1352 | unitid); |
| 1353 | return -EINVAL; |
| 1354 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | } |
| 1356 | |
| 1357 | /* parse the source unit */ |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1358 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1359 | return err; |
| 1360 | |
| 1361 | /* determine the input source type and name */ |
Daniel Mack | 4d7b86c | 2013-03-19 21:09:24 +0100 | [diff] [blame] | 1362 | err = check_input_term(state, hdr->bSourceID, &iterm); |
| 1363 | if (err < 0) |
| 1364 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1365 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1366 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
Javier Kohen | 0c3cee5 | 2009-11-17 15:36:13 +0100 | [diff] [blame] | 1367 | /* master configuration quirks */ |
| 1368 | switch (state->chip->usb_id) { |
| 1369 | case USB_ID(0x08bb, 0x2702): |
| 1370 | snd_printk(KERN_INFO |
| 1371 | "usbmixer: master volume quirk for PCM2702 chip\n"); |
| 1372 | /* disable non-functional volume control */ |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1373 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
Javier Kohen | 0c3cee5 | 2009-11-17 15:36:13 +0100 | [diff] [blame] | 1374 | break; |
David Henningsson | c105143 | 2012-09-20 10:20:41 +0200 | [diff] [blame] | 1375 | case USB_ID(0x1130, 0xf211): |
| 1376 | snd_printk(KERN_INFO |
| 1377 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); |
| 1378 | /* disable non-functional volume control */ |
| 1379 | channels = 0; |
| 1380 | break; |
| 1381 | |
Javier Kohen | 0c3cee5 | 2009-11-17 15:36:13 +0100 | [diff] [blame] | 1382 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | if (channels > 0) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1384 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | else |
| 1386 | first_ch_bits = 0; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1387 | |
| 1388 | if (state->mixer->protocol == UAC_VERSION_1) { |
| 1389 | /* check all control types */ |
| 1390 | for (i = 0; i < 10; i++) { |
| 1391 | unsigned int ch_bits = 0; |
| 1392 | for (j = 0; j < channels; j++) { |
| 1393 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); |
| 1394 | if (mask & (1 << i)) |
| 1395 | ch_bits |= (1 << j); |
| 1396 | } |
| 1397 | /* audio class v1 controls are never read-only */ |
| 1398 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
| 1399 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); |
| 1400 | if (master_bits & (1 << i)) |
| 1401 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | } |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1403 | } else { /* UAC_VERSION_2 */ |
Takashi Iwai | d09c06c | 2011-10-13 08:19:09 +0200 | [diff] [blame] | 1404 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1405 | unsigned int ch_bits = 0; |
| 1406 | unsigned int ch_read_only = 0; |
| 1407 | |
| 1408 | for (j = 0; j < channels; j++) { |
| 1409 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); |
Daniel Mack | dcbe7bc | 2010-05-31 13:35:36 +0200 | [diff] [blame] | 1410 | if (uac2_control_is_readable(mask, i)) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1411 | ch_bits |= (1 << j); |
Daniel Mack | dcbe7bc | 2010-05-31 13:35:36 +0200 | [diff] [blame] | 1412 | if (!uac2_control_is_writeable(mask, i)) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1413 | ch_read_only |= (1 << j); |
| 1414 | } |
| 1415 | } |
| 1416 | |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1417 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
| 1418 | * are marked read-only in the descriptors. Otherwise, the control will be |
| 1419 | * reported as writeable, but the driver will not actually issue a write |
| 1420 | * command for read-only channels */ |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1421 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 1422 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
Daniel Mack | dcbe7bc | 2010-05-31 13:35:36 +0200 | [diff] [blame] | 1423 | if (uac2_control_is_readable(master_bits, i)) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1424 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
Daniel Mack | dcbe7bc | 2010-05-31 13:35:36 +0200 | [diff] [blame] | 1425 | !uac2_control_is_writeable(master_bits, i)); |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1426 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1427 | } |
| 1428 | |
| 1429 | return 0; |
| 1430 | } |
| 1431 | |
| 1432 | |
| 1433 | /* |
| 1434 | * Mixer Unit |
| 1435 | */ |
| 1436 | |
| 1437 | /* |
| 1438 | * build a mixer unit control |
| 1439 | * |
| 1440 | * the callbacks are identical with feature unit. |
| 1441 | * input channel number (zero based) is given in control field instead. |
| 1442 | */ |
| 1443 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1444 | static void build_mixer_unit_ctl(struct mixer_build *state, |
| 1445 | struct uac_mixer_unit_descriptor *desc, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | int in_pin, int in_ch, int unitid, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1447 | struct usb_audio_term *iterm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1449 | struct usb_mixer_elem_info *cval; |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1450 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | unsigned int i, len; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1452 | struct snd_kcontrol *kctl; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1453 | const struct usbmix_name_map *map; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1455 | map = find_map(state, unitid, 0); |
| 1456 | if (check_ignored_ctl(map)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | return; |
| 1458 | |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 1459 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | if (! cval) |
| 1461 | return; |
| 1462 | |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1463 | cval->mixer = state->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | cval->id = unitid; |
| 1465 | cval->control = in_ch + 1; /* based on 1 */ |
| 1466 | cval->val_type = USB_MIXER_S16; |
| 1467 | for (i = 0; i < num_outs; i++) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1468 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | cval->cmask |= (1 << i); |
| 1470 | cval->channels++; |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | /* get min/max values */ |
| 1475 | get_min_max(cval, 0); |
| 1476 | |
| 1477 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); |
| 1478 | if (! kctl) { |
| 1479 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
| 1480 | kfree(cval); |
| 1481 | return; |
| 1482 | } |
| 1483 | kctl->private_free = usb_mixer_elem_free; |
| 1484 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1485 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | if (! len) |
| 1487 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); |
| 1488 | if (! len) |
| 1489 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 1490 | append_ctl_name(kctl, " Volume"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | |
| 1492 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", |
| 1493 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 1494 | snd_usb_mixer_add_control(state->mixer, kctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | } |
| 1496 | |
| 1497 | |
| 1498 | /* |
| 1499 | * parse a mixer unit |
| 1500 | */ |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1501 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1503 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1504 | struct usb_audio_term iterm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | int input_pins, num_ins, num_outs; |
| 1506 | int pin, ich, err; |
| 1507 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1508 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); |
| 1510 | return -EINVAL; |
| 1511 | } |
| 1512 | /* no bmControls field (e.g. Maya44) -> ignore */ |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1513 | if (desc->bLength <= 10 + input_pins) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); |
| 1515 | return 0; |
| 1516 | } |
| 1517 | |
| 1518 | num_ins = 0; |
| 1519 | ich = 0; |
| 1520 | for (pin = 0; pin < input_pins; pin++) { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1521 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1522 | if (err < 0) |
Mark Hills | 284a8dd | 2012-04-14 17:19:23 +0100 | [diff] [blame] | 1523 | continue; |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1524 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1525 | if (err < 0) |
| 1526 | return err; |
| 1527 | num_ins += iterm.channels; |
| 1528 | for (; ich < num_ins; ++ich) { |
| 1529 | int och, ich_has_controls = 0; |
| 1530 | |
| 1531 | for (och = 0; och < num_outs; ++och) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1532 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1533 | ich, och, num_outs)) { |
| 1534 | ich_has_controls = 1; |
| 1535 | break; |
| 1536 | } |
| 1537 | } |
| 1538 | if (ich_has_controls) |
| 1539 | build_mixer_unit_ctl(state, desc, pin, ich, |
| 1540 | unitid, &iterm); |
| 1541 | } |
| 1542 | } |
| 1543 | return 0; |
| 1544 | } |
| 1545 | |
| 1546 | |
| 1547 | /* |
| 1548 | * Processing Unit / Extension Unit |
| 1549 | */ |
| 1550 | |
| 1551 | /* get callback for processing/extension unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1552 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1554 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1555 | int err, val; |
| 1556 | |
| 1557 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1558 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1559 | ucontrol->value.integer.value[0] = cval->min; |
| 1560 | return 0; |
| 1561 | } |
| 1562 | if (err < 0) |
| 1563 | return err; |
| 1564 | val = get_relative_value(cval, val); |
| 1565 | ucontrol->value.integer.value[0] = val; |
| 1566 | return 0; |
| 1567 | } |
| 1568 | |
| 1569 | /* put callback for processing/extension unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1570 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1572 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | int val, oval, err; |
| 1574 | |
| 1575 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
| 1576 | if (err < 0) { |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1577 | if (cval->mixer->ignore_ctl_error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1578 | return 0; |
| 1579 | return err; |
| 1580 | } |
| 1581 | val = ucontrol->value.integer.value[0]; |
| 1582 | val = get_abs_value(cval, val); |
| 1583 | if (val != oval) { |
| 1584 | set_cur_ctl_value(cval, cval->control << 8, val); |
| 1585 | return 1; |
| 1586 | } |
| 1587 | return 0; |
| 1588 | } |
| 1589 | |
| 1590 | /* alsa control interface for processing/extension unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1591 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 1593 | .name = "", /* will be filled later */ |
| 1594 | .info = mixer_ctl_feature_info, |
| 1595 | .get = mixer_ctl_procunit_get, |
| 1596 | .put = mixer_ctl_procunit_put, |
| 1597 | }; |
| 1598 | |
| 1599 | |
| 1600 | /* |
| 1601 | * predefined data for processing units |
| 1602 | */ |
| 1603 | struct procunit_value_info { |
| 1604 | int control; |
| 1605 | char *suffix; |
| 1606 | int val_type; |
| 1607 | int min_value; |
| 1608 | }; |
| 1609 | |
| 1610 | struct procunit_info { |
| 1611 | int type; |
| 1612 | char *name; |
| 1613 | struct procunit_value_info *values; |
| 1614 | }; |
| 1615 | |
| 1616 | static struct procunit_value_info updown_proc_info[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1617 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 1618 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | { 0 } |
| 1620 | }; |
| 1621 | static struct procunit_value_info prologic_proc_info[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1622 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 1623 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1624 | { 0 } |
| 1625 | }; |
| 1626 | static struct procunit_value_info threed_enh_proc_info[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1627 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 1628 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | { 0 } |
| 1630 | }; |
| 1631 | static struct procunit_value_info reverb_proc_info[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1632 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 1633 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, |
| 1634 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, |
| 1635 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1636 | { 0 } |
| 1637 | }; |
| 1638 | static struct procunit_value_info chorus_proc_info[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1639 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 1640 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, |
| 1641 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, |
| 1642 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1643 | { 0 } |
| 1644 | }; |
| 1645 | static struct procunit_value_info dcr_proc_info[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1646 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 1647 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, |
| 1648 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, |
| 1649 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, |
| 1650 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, |
| 1651 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1652 | { 0 } |
| 1653 | }; |
| 1654 | |
| 1655 | static struct procunit_info procunits[] = { |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1656 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
| 1657 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, |
| 1658 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, |
| 1659 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, |
| 1660 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, |
| 1661 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | { 0 }, |
| 1663 | }; |
Sergiy Kovalchuk | 7d2b451 | 2009-12-27 09:13:41 -0800 | [diff] [blame] | 1664 | /* |
| 1665 | * predefined data for extension units |
| 1666 | */ |
| 1667 | static struct procunit_value_info clock_rate_xu_info[] = { |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 1668 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
| 1669 | { 0 } |
Sergiy Kovalchuk | 7d2b451 | 2009-12-27 09:13:41 -0800 | [diff] [blame] | 1670 | }; |
| 1671 | static struct procunit_value_info clock_source_xu_info[] = { |
| 1672 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, |
| 1673 | { 0 } |
| 1674 | }; |
| 1675 | static struct procunit_value_info spdif_format_xu_info[] = { |
| 1676 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, |
| 1677 | { 0 } |
| 1678 | }; |
| 1679 | static struct procunit_value_info soft_limit_xu_info[] = { |
| 1680 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, |
| 1681 | { 0 } |
| 1682 | }; |
| 1683 | static struct procunit_info extunits[] = { |
| 1684 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, |
| 1685 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, |
| 1686 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, |
| 1687 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, |
| 1688 | { 0 } |
| 1689 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | /* |
| 1691 | * build a processing/extension unit |
| 1692 | */ |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1693 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1695 | struct uac_processing_unit_descriptor *desc = raw_desc; |
| 1696 | int num_ins = desc->bNrInPins; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1697 | struct usb_mixer_elem_info *cval; |
| 1698 | struct snd_kcontrol *kctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | int i, err, nameid, type, len; |
| 1700 | struct procunit_info *info; |
| 1701 | struct procunit_value_info *valinfo; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1702 | const struct usbmix_name_map *map; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | static struct procunit_value_info default_value_info[] = { |
| 1704 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, |
| 1705 | { 0 } |
| 1706 | }; |
| 1707 | static struct procunit_info default_info = { |
| 1708 | 0, NULL, default_value_info |
| 1709 | }; |
| 1710 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1711 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
| 1712 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); |
| 1714 | return -EINVAL; |
| 1715 | } |
| 1716 | |
| 1717 | for (i = 0; i < num_ins; i++) { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1718 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1719 | return err; |
| 1720 | } |
| 1721 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1722 | type = le16_to_cpu(desc->wProcessType); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1723 | for (info = list; info && info->type; info++) |
| 1724 | if (info->type == type) |
| 1725 | break; |
| 1726 | if (! info || ! info->type) |
| 1727 | info = &default_info; |
| 1728 | |
| 1729 | for (valinfo = info->values; valinfo->control; valinfo++) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1730 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1731 | |
| 1732 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1733 | continue; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1734 | map = find_map(state, unitid, valinfo->control); |
| 1735 | if (check_ignored_ctl(map)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | continue; |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 1737 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | if (! cval) { |
| 1739 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
| 1740 | return -ENOMEM; |
| 1741 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1742 | cval->mixer = state->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | cval->id = unitid; |
| 1744 | cval->control = valinfo->control; |
| 1745 | cval->val_type = valinfo->val_type; |
| 1746 | cval->channels = 1; |
| 1747 | |
| 1748 | /* get min/max values */ |
Daniel Mack | 65f25da | 2010-05-31 13:35:41 +0200 | [diff] [blame] | 1749 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1750 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | /* FIXME: hard-coded */ |
| 1752 | cval->min = 1; |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1753 | cval->max = control_spec[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | cval->res = 1; |
| 1755 | cval->initialized = 1; |
Sergiy Kovalchuk | 7d2b451 | 2009-12-27 09:13:41 -0800 | [diff] [blame] | 1756 | } else { |
| 1757 | if (type == USB_XU_CLOCK_RATE) { |
Joseph Teichman | 1cdfa9f | 2011-02-08 01:22:36 -0500 | [diff] [blame] | 1758 | /* E-Mu USB 0404/0202/TrackerPre/0204 |
Sergiy Kovalchuk | 7d2b451 | 2009-12-27 09:13:41 -0800 | [diff] [blame] | 1759 | * samplerate control quirk |
| 1760 | */ |
| 1761 | cval->min = 0; |
| 1762 | cval->max = 5; |
| 1763 | cval->res = 1; |
| 1764 | cval->initialized = 1; |
| 1765 | } else |
| 1766 | get_min_max(cval, valinfo->min_value); |
| 1767 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | |
| 1769 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); |
| 1770 | if (! kctl) { |
| 1771 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
| 1772 | kfree(cval); |
| 1773 | return -ENOMEM; |
| 1774 | } |
| 1775 | kctl->private_free = usb_mixer_elem_free; |
| 1776 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1777 | if (check_mapped_name(map, kctl->id.name, |
| 1778 | sizeof(kctl->id.name))) |
| 1779 | /* nothing */ ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | else if (info->name) |
| 1781 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
| 1782 | else { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 1783 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | len = 0; |
| 1785 | if (nameid) |
| 1786 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); |
| 1787 | if (! len) |
| 1788 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
| 1789 | } |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 1790 | append_ctl_name(kctl, " "); |
| 1791 | append_ctl_name(kctl, valinfo->suffix); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1792 | |
| 1793 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", |
| 1794 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 1795 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | return err; |
| 1797 | } |
| 1798 | return 0; |
| 1799 | } |
| 1800 | |
| 1801 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1802 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1804 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | } |
| 1806 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1807 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1809 | /* Note that we parse extension units with processing unit descriptors. |
| 1810 | * That's ok as the layout is the same */ |
| 1811 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1812 | } |
| 1813 | |
| 1814 | |
| 1815 | /* |
| 1816 | * Selector Unit |
| 1817 | */ |
| 1818 | |
| 1819 | /* info callback for selector unit |
| 1820 | * use an enumerator type for routing |
| 1821 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1822 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1824 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Clemens Ladisch | 2a1803a | 2011-01-10 16:30:13 +0100 | [diff] [blame] | 1825 | const char **itemlist = (const char **)kcontrol->private_value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | |
Takashi Iwai | 5e246b8 | 2008-08-08 17:12:47 +0200 | [diff] [blame] | 1827 | if (snd_BUG_ON(!itemlist)) |
| 1828 | return -EINVAL; |
Clemens Ladisch | 2a1803a | 2011-01-10 16:30:13 +0100 | [diff] [blame] | 1829 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | } |
| 1831 | |
| 1832 | /* get callback for selector unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1833 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1835 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1836 | int val, err; |
| 1837 | |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 1838 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1839 | if (err < 0) { |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1840 | if (cval->mixer->ignore_ctl_error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | ucontrol->value.enumerated.item[0] = 0; |
| 1842 | return 0; |
| 1843 | } |
| 1844 | return err; |
| 1845 | } |
| 1846 | val = get_relative_value(cval, val); |
| 1847 | ucontrol->value.enumerated.item[0] = val; |
| 1848 | return 0; |
| 1849 | } |
| 1850 | |
| 1851 | /* put callback for selector unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1852 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1854 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1855 | int val, oval, err; |
| 1856 | |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 1857 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1858 | if (err < 0) { |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1859 | if (cval->mixer->ignore_ctl_error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | return 0; |
| 1861 | return err; |
| 1862 | } |
| 1863 | val = ucontrol->value.enumerated.item[0]; |
| 1864 | val = get_abs_value(cval, val); |
| 1865 | if (val != oval) { |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 1866 | set_cur_ctl_value(cval, cval->control << 8, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | return 1; |
| 1868 | } |
| 1869 | return 0; |
| 1870 | } |
| 1871 | |
| 1872 | /* alsa control interface for selector unit */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1873 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1874 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 1875 | .name = "", /* will be filled later */ |
| 1876 | .info = mixer_ctl_selector_info, |
| 1877 | .get = mixer_ctl_selector_get, |
| 1878 | .put = mixer_ctl_selector_put, |
| 1879 | }; |
| 1880 | |
| 1881 | |
| 1882 | /* private free callback. |
| 1883 | * free both private_data and private_value |
| 1884 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1885 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1886 | { |
| 1887 | int i, num_ins = 0; |
| 1888 | |
| 1889 | if (kctl->private_data) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1890 | struct usb_mixer_elem_info *cval = kctl->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1891 | num_ins = cval->max; |
| 1892 | kfree(cval); |
| 1893 | kctl->private_data = NULL; |
| 1894 | } |
| 1895 | if (kctl->private_value) { |
| 1896 | char **itemlist = (char **)kctl->private_value; |
| 1897 | for (i = 0; i < num_ins; i++) |
| 1898 | kfree(itemlist[i]); |
| 1899 | kfree(itemlist); |
| 1900 | kctl->private_value = 0; |
| 1901 | } |
| 1902 | } |
| 1903 | |
| 1904 | /* |
| 1905 | * parse a selector unit |
| 1906 | */ |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1907 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1908 | { |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1909 | struct uac_selector_unit_descriptor *desc = raw_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | unsigned int i, nameid, len; |
| 1911 | int err; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1912 | struct usb_mixer_elem_info *cval; |
| 1913 | struct snd_kcontrol *kctl; |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1914 | const struct usbmix_name_map *map; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1915 | char **namelist; |
| 1916 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1917 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1918 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); |
| 1919 | return -EINVAL; |
| 1920 | } |
| 1921 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1922 | for (i = 0; i < desc->bNrInPins; i++) { |
| 1923 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | return err; |
| 1925 | } |
| 1926 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1927 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1928 | return 0; |
| 1929 | |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1930 | map = find_map(state, unitid, 0); |
| 1931 | if (check_ignored_ctl(map)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1932 | return 0; |
| 1933 | |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 1934 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1935 | if (! cval) { |
| 1936 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
| 1937 | return -ENOMEM; |
| 1938 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 1939 | cval->mixer = state->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1940 | cval->id = unitid; |
| 1941 | cval->val_type = USB_MIXER_U8; |
| 1942 | cval->channels = 1; |
| 1943 | cval->min = 1; |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1944 | cval->max = desc->bNrInPins; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | cval->res = 1; |
| 1946 | cval->initialized = 1; |
| 1947 | |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 1948 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
| 1949 | cval->control = UAC2_CX_CLOCK_SELECTOR; |
| 1950 | else |
| 1951 | cval->control = 0; |
| 1952 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1953 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1954 | if (! namelist) { |
| 1955 | snd_printk(KERN_ERR "cannot malloc\n"); |
| 1956 | kfree(cval); |
| 1957 | return -ENOMEM; |
| 1958 | } |
| 1959 | #define MAX_ITEM_NAME_LEN 64 |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1960 | for (i = 0; i < desc->bNrInPins; i++) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1961 | struct usb_audio_term iterm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1962 | len = 0; |
| 1963 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); |
| 1964 | if (! namelist[i]) { |
| 1965 | snd_printk(KERN_ERR "cannot malloc\n"); |
Mariusz Kozlowski | 7fbe3ca | 2007-01-08 11:25:30 +0100 | [diff] [blame] | 1966 | while (i--) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1967 | kfree(namelist[i]); |
| 1968 | kfree(namelist); |
| 1969 | kfree(cval); |
| 1970 | return -ENOMEM; |
| 1971 | } |
Clemens Ladisch | 8e062ec | 2005-04-22 15:49:52 +0200 | [diff] [blame] | 1972 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
| 1973 | MAX_ITEM_NAME_LEN); |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1974 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
| 1976 | if (! len) |
| 1977 | sprintf(namelist[i], "Input %d", i); |
| 1978 | } |
| 1979 | |
| 1980 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); |
| 1981 | if (! kctl) { |
| 1982 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); |
Jesper Juhl | 878b478 | 2006-03-20 11:27:13 +0100 | [diff] [blame] | 1983 | kfree(namelist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1984 | kfree(cval); |
| 1985 | return -ENOMEM; |
| 1986 | } |
| 1987 | kctl->private_value = (unsigned long)namelist; |
| 1988 | kctl->private_free = usb_mixer_selector_elem_free; |
| 1989 | |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 1990 | nameid = uac_selector_unit_iSelector(desc); |
Jaroslav Kysela | c3a3e04 | 2010-02-11 17:50:44 +0100 | [diff] [blame] | 1991 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1992 | if (len) |
| 1993 | ; |
| 1994 | else if (nameid) |
| 1995 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); |
| 1996 | else { |
| 1997 | len = get_term_name(state, &state->oterm, |
| 1998 | kctl->id.name, sizeof(kctl->id.name), 0); |
| 1999 | if (! len) |
| 2000 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
| 2001 | |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 2002 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
| 2003 | append_ctl_name(kctl, " Clock Source"); |
| 2004 | else if ((state->oterm.type & 0xff00) == 0x0100) |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 2005 | append_ctl_name(kctl, " Capture Source"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2006 | else |
Takashi Iwai | 08d1e63 | 2009-10-02 14:06:08 +0200 | [diff] [blame] | 2007 | append_ctl_name(kctl, " Playback Source"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | } |
| 2009 | |
| 2010 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", |
Daniel Mack | 99fc864 | 2010-03-11 21:13:24 +0100 | [diff] [blame] | 2011 | cval->id, kctl->id.name, desc->bNrInPins); |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 2012 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | return err; |
| 2014 | |
| 2015 | return 0; |
| 2016 | } |
| 2017 | |
| 2018 | |
| 2019 | /* |
| 2020 | * parse an audio unit recursively |
| 2021 | */ |
| 2022 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2023 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2024 | { |
| 2025 | unsigned char *p1; |
| 2026 | |
| 2027 | if (test_and_set_bit(unitid, state->unitbitmap)) |
| 2028 | return 0; /* the unit already visited */ |
| 2029 | |
| 2030 | p1 = find_audio_control_unit(state, unitid); |
| 2031 | if (!p1) { |
| 2032 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); |
| 2033 | return -EINVAL; |
| 2034 | } |
| 2035 | |
| 2036 | switch (p1[2]) { |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 2037 | case UAC_INPUT_TERMINAL: |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 2038 | case UAC2_CLOCK_SOURCE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2039 | return 0; /* NOP */ |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 2040 | case UAC_MIXER_UNIT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2041 | return parse_audio_mixer_unit(state, unitid, p1); |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 2042 | case UAC_SELECTOR_UNIT: |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 2043 | case UAC2_CLOCK_SELECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | return parse_audio_selector_unit(state, unitid, p1); |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 2045 | case UAC_FEATURE_UNIT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2046 | return parse_audio_feature_unit(state, unitid, p1); |
Daniel Mack | 69da9bc | 2010-06-16 17:57:28 +0200 | [diff] [blame] | 2047 | case UAC1_PROCESSING_UNIT: |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2048 | /* UAC2_EFFECT_UNIT has the same value */ |
| 2049 | if (state->mixer->protocol == UAC_VERSION_1) |
| 2050 | return parse_audio_processing_unit(state, unitid, p1); |
| 2051 | else |
| 2052 | return 0; /* FIXME - effect units not implemented yet */ |
Daniel Mack | 69da9bc | 2010-06-16 17:57:28 +0200 | [diff] [blame] | 2053 | case UAC1_EXTENSION_UNIT: |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2054 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
| 2055 | if (state->mixer->protocol == UAC_VERSION_1) |
| 2056 | return parse_audio_extension_unit(state, unitid, p1); |
| 2057 | else /* UAC_VERSION_2 */ |
| 2058 | return parse_audio_processing_unit(state, unitid, p1); |
Torstein Hegge | 61ac513 | 2013-03-19 17:12:14 +0100 | [diff] [blame] | 2059 | case UAC2_EXTENSION_UNIT_V2: |
| 2060 | return parse_audio_extension_unit(state, unitid, p1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2061 | default: |
| 2062 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); |
| 2063 | return -EINVAL; |
| 2064 | } |
| 2065 | } |
| 2066 | |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2067 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
| 2068 | { |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2069 | kfree(mixer->id_elems); |
| 2070 | if (mixer->urb) { |
| 2071 | kfree(mixer->urb->transfer_buffer); |
| 2072 | usb_free_urb(mixer->urb); |
| 2073 | } |
Mariusz Kozlowski | 68df9de | 2006-11-08 15:37:04 +0100 | [diff] [blame] | 2074 | usb_free_urb(mixer->rc_urb); |
Clemens Ladisch | b259b10 | 2005-04-29 16:29:28 +0200 | [diff] [blame] | 2075 | kfree(mixer->rc_setup_packet); |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2076 | kfree(mixer); |
| 2077 | } |
| 2078 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2079 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2080 | { |
| 2081 | struct usb_mixer_interface *mixer = device->device_data; |
| 2082 | snd_usb_mixer_free(mixer); |
| 2083 | return 0; |
| 2084 | } |
| 2085 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | /* |
| 2087 | * create mixer controls |
| 2088 | * |
Daniel Mack | de48c7b | 2010-02-22 23:49:13 +0100 | [diff] [blame] | 2089 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2090 | */ |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2091 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2092 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2093 | struct mixer_build state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2094 | int err; |
| 2095 | const struct usbmix_ctl_map *map; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2096 | void *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2097 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2098 | memset(&state, 0, sizeof(state)); |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2099 | state.chip = mixer->chip; |
| 2100 | state.mixer = mixer; |
Daniel Mack | 1faa5d0 | 2011-08-04 15:56:28 +0200 | [diff] [blame] | 2101 | state.buffer = mixer->hostif->extra; |
| 2102 | state.buflen = mixer->hostif->extralen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2103 | |
| 2104 | /* check the mapping table */ |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2105 | for (map = usbmix_ctl_maps; map->id; map++) { |
| 2106 | if (map->id == state.chip->usb_id) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2107 | state.map = map->map; |
Clemens Ladisch | 8e062ec | 2005-04-22 15:49:52 +0200 | [diff] [blame] | 2108 | state.selector_map = map->selector_map; |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2109 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2110 | break; |
| 2111 | } |
| 2112 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2113 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2114 | p = NULL; |
Daniel Mack | 1faa5d0 | 2011-08-04 15:56:28 +0200 | [diff] [blame] | 2115 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, |
| 2116 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2117 | if (mixer->protocol == UAC_VERSION_1) { |
Daniel Mack | 69da9bc | 2010-06-16 17:57:28 +0200 | [diff] [blame] | 2118 | struct uac1_output_terminal_descriptor *desc = p; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2119 | |
| 2120 | if (desc->bLength < sizeof(*desc)) |
| 2121 | continue; /* invalid descriptor? */ |
| 2122 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ |
| 2123 | state.oterm.id = desc->bTerminalID; |
| 2124 | state.oterm.type = le16_to_cpu(desc->wTerminalType); |
| 2125 | state.oterm.name = desc->iTerminal; |
| 2126 | err = parse_audio_unit(&state, desc->bSourceID); |
Daniel Mack | 83ea5d1 | 2013-03-19 21:09:25 +0100 | [diff] [blame] | 2127 | if (err < 0 && err != -EINVAL) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2128 | return err; |
| 2129 | } else { /* UAC_VERSION_2 */ |
| 2130 | struct uac2_output_terminal_descriptor *desc = p; |
| 2131 | |
| 2132 | if (desc->bLength < sizeof(*desc)) |
| 2133 | continue; /* invalid descriptor? */ |
| 2134 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ |
| 2135 | state.oterm.id = desc->bTerminalID; |
| 2136 | state.oterm.type = le16_to_cpu(desc->wTerminalType); |
| 2137 | state.oterm.name = desc->iTerminal; |
| 2138 | err = parse_audio_unit(&state, desc->bSourceID); |
Daniel Mack | 83ea5d1 | 2013-03-19 21:09:25 +0100 | [diff] [blame] | 2139 | if (err < 0 && err != -EINVAL) |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2140 | return err; |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 2141 | |
| 2142 | /* for UAC2, use the same approach to also add the clock selectors */ |
| 2143 | err = parse_audio_unit(&state, desc->bCSourceID); |
Daniel Mack | 83ea5d1 | 2013-03-19 21:09:25 +0100 | [diff] [blame] | 2144 | if (err < 0 && err != -EINVAL) |
Daniel Mack | 0941420 | 2010-05-31 13:35:44 +0200 | [diff] [blame] | 2145 | return err; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2146 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2147 | } |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2149 | return 0; |
| 2150 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2151 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 2152 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2153 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2154 | struct usb_mixer_elem_info *info; |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2155 | |
| 2156 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) |
| 2157 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 2158 | info->elem_id); |
| 2159 | } |
| 2160 | |
Jaroslav Kysela | ebfdeea | 2010-02-16 11:17:09 +0100 | [diff] [blame] | 2161 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
| 2162 | int unitid, |
| 2163 | struct usb_mixer_elem_info *cval) |
| 2164 | { |
| 2165 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", |
| 2166 | "S8", "U8", "S16", "U16"}; |
| 2167 | snd_iprintf(buffer, " Unit: %i\n", unitid); |
| 2168 | if (cval->elem_id) |
| 2169 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", |
| 2170 | cval->elem_id->name, cval->elem_id->index); |
| 2171 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " |
| 2172 | "channels=%i, type=\"%s\"\n", cval->id, |
| 2173 | cval->control, cval->cmask, cval->channels, |
| 2174 | val_types[cval->val_type]); |
| 2175 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", |
| 2176 | cval->min, cval->max, cval->dBmin, cval->dBmax); |
| 2177 | } |
| 2178 | |
| 2179 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, |
| 2180 | struct snd_info_buffer *buffer) |
| 2181 | { |
| 2182 | struct snd_usb_audio *chip = entry->private_data; |
| 2183 | struct usb_mixer_interface *mixer; |
| 2184 | struct usb_mixer_elem_info *cval; |
| 2185 | int unitid; |
| 2186 | |
| 2187 | list_for_each_entry(mixer, &chip->mixer_list, list) { |
| 2188 | snd_iprintf(buffer, |
Jaroslav Kysela | 7affdc1 | 2010-02-16 11:52:27 +0100 | [diff] [blame] | 2189 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
Daniel Mack | 3d8d4dc | 2010-06-16 17:57:31 +0200 | [diff] [blame] | 2190 | chip->usb_id, snd_usb_ctrl_intf(chip), |
Jaroslav Kysela | 7affdc1 | 2010-02-16 11:52:27 +0100 | [diff] [blame] | 2191 | mixer->ignore_ctl_error); |
Jaroslav Kysela | ebfdeea | 2010-02-16 11:17:09 +0100 | [diff] [blame] | 2192 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
| 2193 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { |
| 2194 | for (cval = mixer->id_elems[unitid]; cval; |
| 2195 | cval = cval->next_id_elem) |
| 2196 | snd_usb_mixer_dump_cval(buffer, unitid, cval); |
| 2197 | } |
| 2198 | } |
| 2199 | } |
| 2200 | |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2201 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
| 2202 | int attribute, int value, int index) |
| 2203 | { |
| 2204 | struct usb_mixer_elem_info *info; |
| 2205 | __u8 unitid = (index >> 8) & 0xff; |
| 2206 | __u8 control = (value >> 8) & 0xff; |
| 2207 | __u8 channel = value & 0xff; |
| 2208 | |
| 2209 | if (channel >= MAX_CHANNELS) { |
| 2210 | snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", |
| 2211 | __func__, channel); |
| 2212 | return; |
| 2213 | } |
| 2214 | |
| 2215 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { |
| 2216 | if (info->control != control) |
| 2217 | continue; |
| 2218 | |
| 2219 | switch (attribute) { |
| 2220 | case UAC2_CS_CUR: |
| 2221 | /* invalidate cache, so the value is read from the device */ |
| 2222 | if (channel) |
| 2223 | info->cached &= ~(1 << channel); |
| 2224 | else /* master channel */ |
| 2225 | info->cached = 0; |
| 2226 | |
| 2227 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 2228 | info->elem_id); |
| 2229 | break; |
| 2230 | |
| 2231 | case UAC2_CS_RANGE: |
| 2232 | /* TODO */ |
| 2233 | break; |
| 2234 | |
| 2235 | case UAC2_CS_MEM: |
| 2236 | /* TODO */ |
| 2237 | break; |
| 2238 | |
| 2239 | default: |
| 2240 | snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", |
| 2241 | attribute); |
| 2242 | break; |
| 2243 | } /* switch */ |
| 2244 | } |
| 2245 | } |
| 2246 | |
| 2247 | static void snd_usb_mixer_interrupt(struct urb *urb) |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2248 | { |
| 2249 | struct usb_mixer_interface *mixer = urb->context; |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2250 | int len = urb->actual_length; |
Oliver Neukum | edf7de3 | 2011-03-11 13:19:43 +0100 | [diff] [blame] | 2251 | int ustatus = urb->status; |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2252 | |
Oliver Neukum | edf7de3 | 2011-03-11 13:19:43 +0100 | [diff] [blame] | 2253 | if (ustatus != 0) |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2254 | goto requeue; |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2255 | |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2256 | if (mixer->protocol == UAC_VERSION_1) { |
| 2257 | struct uac1_status_word *status; |
| 2258 | |
| 2259 | for (status = urb->transfer_buffer; |
| 2260 | len >= sizeof(*status); |
| 2261 | len -= sizeof(*status), status++) { |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2262 | snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2263 | status->bStatusType, |
| 2264 | status->bOriginator); |
| 2265 | |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2266 | /* ignore any notifications not from the control interface */ |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2267 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
| 2268 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2269 | continue; |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2270 | |
| 2271 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) |
| 2272 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); |
Clemens Ladisch | b259b10 | 2005-04-29 16:29:28 +0200 | [diff] [blame] | 2273 | else |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2274 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
| 2275 | } |
| 2276 | } else { /* UAC_VERSION_2 */ |
| 2277 | struct uac2_interrupt_data_msg *msg; |
| 2278 | |
| 2279 | for (msg = urb->transfer_buffer; |
| 2280 | len >= sizeof(*msg); |
| 2281 | len -= sizeof(*msg), msg++) { |
| 2282 | /* drop vendor specific and endpoint requests */ |
| 2283 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || |
| 2284 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) |
| 2285 | continue; |
| 2286 | |
| 2287 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, |
| 2288 | le16_to_cpu(msg->wValue), |
| 2289 | le16_to_cpu(msg->wIndex)); |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2290 | } |
| 2291 | } |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2292 | |
| 2293 | requeue: |
Oliver Neukum | edf7de3 | 2011-03-11 13:19:43 +0100 | [diff] [blame] | 2294 | if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2295 | urb->dev = mixer->chip->dev; |
| 2296 | usb_submit_urb(urb, GFP_ATOMIC); |
| 2297 | } |
| 2298 | } |
| 2299 | |
Oliver Neukum | edf7de3 | 2011-03-11 13:19:43 +0100 | [diff] [blame] | 2300 | /* stop any bus activity of a mixer */ |
| 2301 | void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) |
| 2302 | { |
| 2303 | usb_kill_urb(mixer->urb); |
| 2304 | usb_kill_urb(mixer->rc_urb); |
| 2305 | } |
| 2306 | |
| 2307 | int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) |
| 2308 | { |
| 2309 | int err; |
| 2310 | |
| 2311 | if (mixer->urb) { |
| 2312 | err = usb_submit_urb(mixer->urb, GFP_NOIO); |
| 2313 | if (err < 0) |
| 2314 | return err; |
| 2315 | } |
| 2316 | |
| 2317 | return 0; |
| 2318 | } |
| 2319 | |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2320 | /* create the handler for the optional status interrupt endpoint */ |
| 2321 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) |
| 2322 | { |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2323 | struct usb_endpoint_descriptor *ep; |
| 2324 | void *transfer_buffer; |
| 2325 | int buffer_length; |
| 2326 | unsigned int epnum; |
| 2327 | |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2328 | /* we need one interrupt input endpoint */ |
Daniel Mack | 1faa5d0 | 2011-08-04 15:56:28 +0200 | [diff] [blame] | 2329 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2330 | return 0; |
Daniel Mack | 1faa5d0 | 2011-08-04 15:56:28 +0200 | [diff] [blame] | 2331 | ep = get_endpoint(mixer->hostif, 0); |
Julia Lawall | 913ae5a | 2009-01-03 17:54:53 +0100 | [diff] [blame] | 2332 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2333 | return 0; |
| 2334 | |
Julia Lawall | 42a6e66 | 2008-12-29 11:23:02 +0100 | [diff] [blame] | 2335 | epnum = usb_endpoint_num(ep); |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2336 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
| 2337 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); |
| 2338 | if (!transfer_buffer) |
| 2339 | return -ENOMEM; |
| 2340 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); |
| 2341 | if (!mixer->urb) { |
| 2342 | kfree(transfer_buffer); |
| 2343 | return -ENOMEM; |
| 2344 | } |
| 2345 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, |
| 2346 | usb_rcvintpipe(mixer->chip->dev, epnum), |
| 2347 | transfer_buffer, buffer_length, |
Daniel Mack | e213e9c | 2010-05-11 18:13:50 +0200 | [diff] [blame] | 2348 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2349 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
| 2350 | return 0; |
| 2351 | } |
| 2352 | |
Takashi Iwai | 7a9b806 | 2008-08-13 15:40:53 +0200 | [diff] [blame] | 2353 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
| 2354 | int ignore_error) |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2355 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2356 | static struct snd_device_ops dev_ops = { |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2357 | .dev_free = snd_usb_mixer_dev_free |
| 2358 | }; |
| 2359 | struct usb_mixer_interface *mixer; |
Jaroslav Kysela | ebfdeea | 2010-02-16 11:17:09 +0100 | [diff] [blame] | 2360 | struct snd_info_entry *entry; |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 2361 | int err; |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2362 | |
| 2363 | strcpy(chip->card->mixername, "USB Mixer"); |
| 2364 | |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 2365 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2366 | if (!mixer) |
| 2367 | return -ENOMEM; |
| 2368 | mixer->chip = chip; |
Takashi Iwai | 7a9b806 | 2008-08-13 15:40:53 +0200 | [diff] [blame] | 2369 | mixer->ignore_ctl_error = ignore_error; |
Jaroslav Kysela | 291186e | 2010-02-16 11:55:18 +0100 | [diff] [blame] | 2370 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
| 2371 | GFP_KERNEL); |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2372 | if (!mixer->id_elems) { |
| 2373 | kfree(mixer); |
| 2374 | return -ENOMEM; |
| 2375 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2376 | |
Daniel Mack | 1faa5d0 | 2011-08-04 15:56:28 +0200 | [diff] [blame] | 2377 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
| 2378 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { |
Clemens Ladisch | a2acad8 | 2010-09-03 10:53:11 +0200 | [diff] [blame] | 2379 | case UAC_VERSION_1: |
| 2380 | default: |
| 2381 | mixer->protocol = UAC_VERSION_1; |
| 2382 | break; |
| 2383 | case UAC_VERSION_2: |
| 2384 | mixer->protocol = UAC_VERSION_2; |
| 2385 | break; |
| 2386 | } |
Daniel Mack | 7b8a043 | 2010-02-22 23:49:12 +0100 | [diff] [blame] | 2387 | |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2388 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
Clemens Ladisch | 93446ed | 2005-05-03 08:02:40 +0200 | [diff] [blame] | 2389 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
| 2390 | goto _error; |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2391 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 2392 | snd_usb_mixer_apply_create_quirk(mixer); |
Clemens Ladisch | 468b8fd | 2009-07-13 11:39:29 +0200 | [diff] [blame] | 2393 | |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2394 | err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); |
Clemens Ladisch | 93446ed | 2005-05-03 08:02:40 +0200 | [diff] [blame] | 2395 | if (err < 0) |
| 2396 | goto _error; |
Jaroslav Kysela | ebfdeea | 2010-02-16 11:17:09 +0100 | [diff] [blame] | 2397 | |
| 2398 | if (list_empty(&chip->mixer_list) && |
| 2399 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) |
| 2400 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); |
| 2401 | |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2402 | list_add(&mixer->list, &chip->mixer_list); |
| 2403 | return 0; |
Clemens Ladisch | 93446ed | 2005-05-03 08:02:40 +0200 | [diff] [blame] | 2404 | |
| 2405 | _error: |
| 2406 | snd_usb_mixer_free(mixer); |
| 2407 | return err; |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2408 | } |
| 2409 | |
| 2410 | void snd_usb_mixer_disconnect(struct list_head *p) |
| 2411 | { |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2412 | struct usb_mixer_interface *mixer; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 2413 | |
Clemens Ladisch | 6639b6c | 2005-04-29 16:26:14 +0200 | [diff] [blame] | 2414 | mixer = list_entry(p, struct usb_mixer_interface, list); |
Mariusz Kozlowski | 68df9de | 2006-11-08 15:37:04 +0100 | [diff] [blame] | 2415 | usb_kill_urb(mixer->urb); |
| 2416 | usb_kill_urb(mixer->rc_urb); |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 2417 | } |