mixer.c revision b415ec7041429bb2cde3419e9556049fe12bf27a
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (Tentative) USB Audio Driver for ALSA 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer control part 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Many codes borrowed from audio.c by 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alan Cox (alan@lxorguk.ukuu.org.uk) 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Thomas Sailer (sailer@ife.ee.ethz.ch) 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack/* 30157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * TODOs, for both the mixer and the streaming interfaces: 31157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * 32157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - support for UAC2 effect units 33157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - support for graphical equalizers 34157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - RANGE and MEM set commands (UAC2) 35157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - RANGE and MEM interrupt dispatchers (UAC2) 36157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - audio channel clustering (UAC2) 37157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - audio sample rate converter units (UAC2) 38157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - proper handling of clock multipliers (UAC2) 39157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - dispatch clock change notifications (UAC2) 40157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - stop PCM streams which use a clock that became invalid 41157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - stop PCM streams which use a clock selector that has changed 42157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - parse available sample rates again when clock sources changed 43157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack */ 44157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/list.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 5128e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack#include <linux/usb/audio.h> 5223caaf19b11eda7054348452e1618d4512a86907Daniel Mack#include <linux/usb/audio-v2.h> 5328e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/core.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/control.h> 56b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch#include <sound/hwdep.h> 57aafad5629a949d0ad41180f8a746b6cd7654e317Clemens Ladisch#include <sound/info.h> 587bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai#include <sound/tlv.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "usbaudio.h" 61f0b5e634ff25e02a64676022ee13284a9c810879Daniel Mack#include "mixer.h" 62e5779998bf8b70e48a6cc208c8b61b33bd6117eaDaniel Mack#include "helper.h" 637b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack#include "mixer_quirks.h" 644d1a70dad0e1c44dc0725de6de25aceead48599eRaimonds Cicans 65ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela#define MAX_ID_ELEMS 256 66ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_audio_term { 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int id; 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int chconfig; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int name; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usbmix_name_map; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistruct mixer_build { 7886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_usb_audio *chip; 7984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *buffer; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int buflen; 82291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 8386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term oterm; 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_name_map *map; 858e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *selector_map; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_BOOLEAN, 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_INV_BOOLEAN, 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_S8, 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_U8, 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_S16, 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_U16, 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 987d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/*E-mu 0202(0404) eXtension Unit(XU) control*/ 997d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 1007d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE = 0xe301, 1017d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE = 0xe302, 1027d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_IO_STATUS = 0xe303, 1037d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DEVICE_OPTIONS = 0xe304, 1047d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIRECT_MONITORING = 0xe305, 1057d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_METERING = 0xe306 1067d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 1077d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 1087d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 1097d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 1107d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 1117d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 1127d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * manual mapping of mixer names 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the mixer topology is too complicated and the parsed names are 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ambiguous, add the entries in usbmixer_maps.c. 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 119f0b5e634ff25e02a64676022ee13284a9c810879Daniel Mack#include "mixer_maps.c" 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic const struct usbmix_name_map * 122c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselafind_map(struct mixer_build *state, int unitid, int control) 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 124c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *p = state->map; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 126c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p) 127c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (p = state->map; p->id; p++) { 130c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p->id == unitid && 131c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela (!control || !p->control || control == p->control)) 132c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return p; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 134c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* get the mapped name if the unit matches */ 138c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic int 139c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 141c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || !p->name) 142c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 0; 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 144c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela buflen--; 145c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return strlcpy(buf, p->name, buflen); 146c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 147c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 148c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* check whether the control should be ignored */ 149c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline int 150c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_ignored_ctl(const struct usbmix_name_map *p) 151c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 152c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || p->name || p->dB) 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 154c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 1; 155c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 156c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 157c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* dB mapping */ 158c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline void check_mapped_dB(const struct usbmix_name_map *p, 159c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela struct usb_mixer_elem_info *cval) 160c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 161c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p && p->dB) { 162c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = p->dB->min; 163c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = p->dB->max; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1678e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch/* get the mapped selector source name */ 16886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_mapped_selector_name(struct mixer_build *state, int unitid, 1698e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch int index, char *buf, int buflen) 1708e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch{ 1718e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *p; 1728e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1738e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (! state->selector_map) 1748e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1758e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch for (p = state->selector_map; p->id; p++) { 1768e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (p->id == unitid && index < p->count) 1778e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return strlcpy(buf, p->names[index], buflen); 1788e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch } 1798e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1808e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch} 1818e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * find an audio control unit with the given unit id 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18767e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack /* we just parse the header */ 18867e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 18967e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack 19067e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 19167e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack USB_DT_CS_INTERFACE)) != NULL) { 19267e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack if (hdr->bLength >= 4 && 19367e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 19467e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && 19567e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bUnitID == unit) 19667e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack return hdr; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19867e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copy a string with the given id 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[len] = 0; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the byte/word on usb descriptor to the zero-based integer 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x80) 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x100; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x8000) 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x10000; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the zero-based int to the byte/word for usb descriptor 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xff; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xffff; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* not reached */ 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_relative_value(struct usb_mixer_elem_info *cval, int val) 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < cval->min) 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 26814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else if (val >= cval->max) 26914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai return (cval->max - cval->min + cval->res - 1) / cval->res; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val - cval->min) / cval->res; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_abs_value(struct usb_mixer_elem_info *cval, int val) 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < 0) 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->min; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val *= cval->res; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val += cval->min; 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val > cval->max) 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->max; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve a mixer value 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29223caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2943d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timeout = 10; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (timeout-- > 0) { 3003d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3023d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 303a04395ead6d17c83da64264b6fe78f852a648202Thomas Reitmayr buf, val_len, 100) >= val_len) { 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 30884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 309b415ec7041429bb2cde3419e9556049fe12bf27aTakashi Iwai request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31323caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 31423caaf19b11eda7054348452e1618d4512a86907Daniel Mack{ 3153d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 316e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ 31723caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char *val; 318e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack int ret, size; 31923caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 bRequest; 32023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 321e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack if (request == UAC_GET_CUR) { 322e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack bRequest = UAC2_CS_CUR; 323e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack size = sizeof(__u16); 324e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack } else { 325e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack bRequest = UAC2_CS_RANGE; 326e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack size = sizeof(buf); 327e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack } 328e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack 329e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack memset(buf, 0, sizeof(buf)); 33023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 3313d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 33223caaf19b11eda7054348452e1618d4512a86907Daniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3333d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 334e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack buf, size, 1000); 33523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 33623caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ret < 0) { 33709414207d4daab8c4990bface3a79fdba3474becDaniel Mack snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 3383d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); 33923caaf19b11eda7054348452e1618d4512a86907Daniel Mack return ret; 34023caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 34123caaf19b11eda7054348452e1618d4512a86907Daniel Mack 342e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack /* FIXME: how should we handle multiple triplets here? */ 343e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack 34423caaf19b11eda7054348452e1618d4512a86907Daniel Mack switch (request) { 34523caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_CUR: 34623caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf; 34723caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 34823caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_MIN: 34923caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16); 35023caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 35123caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_MAX: 35223caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16) * 2; 35323caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 35423caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_RES: 35523caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16) * 3; 35623caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 35723caaf19b11eda7054348452e1618d4512a86907Daniel Mack default: 35823caaf19b11eda7054348452e1618d4512a86907Daniel Mack return -EINVAL; 35923caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 36023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 36123caaf19b11eda7054348452e1618d4512a86907Daniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); 36223caaf19b11eda7054348452e1618d4512a86907Daniel Mack 36323caaf19b11eda7054348452e1618d4512a86907Daniel Mack return 0; 36423caaf19b11eda7054348452e1618d4512a86907Daniel Mack} 36523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 36623caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 36723caaf19b11eda7054348452e1618d4512a86907Daniel Mack{ 36823caaf19b11eda7054348452e1618d4512a86907Daniel Mack return (cval->mixer->protocol == UAC_VERSION_1) ? 36923caaf19b11eda7054348452e1618d4512a86907Daniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 37023caaf19b11eda7054348452e1618d4512a86907Daniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 37123caaf19b11eda7054348452e1618d4512a86907Daniel Mack} 37223caaf19b11eda7054348452e1618d4512a86907Daniel Mack 37386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 375de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* channel = 0: master, 1 = first channel */ 379641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 380641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int *value) 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 382de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 385641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int get_cur_mix_value(struct usb_mixer_elem_info *cval, 386641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int index, int *value) 387641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai{ 388641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 389641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 390641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (cval->cached & (1 << channel)) { 391641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai *value = cval->cache_val[index]; 392641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 393641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 394641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_raw(cval, channel, value); 395641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) { 396641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!cval->mixer->ignore_ctl_error) 39723caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", 398641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->control, channel, err); 399641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 400641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 401641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 402641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = *value; 403641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 404641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai} 405641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 406641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set a mixer value 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4117b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackint snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 4127b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack int request, int validx, int value_set) 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4143d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 41623caaf19b11eda7054348452e1618d4512a86907Daniel Mack int val_len, timeout = 10; 41723caaf19b11eda7054348452e1618d4512a86907Daniel Mack 41823caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (cval->mixer->protocol == UAC_VERSION_1) { 41923caaf19b11eda7054348452e1618d4512a86907Daniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 42023caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 42123caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* audio class v2 controls are always 2 bytes in size */ 42223caaf19b11eda7054348452e1618d4512a86907Daniel Mack val_len = sizeof(__u16); 42323caaf19b11eda7054348452e1618d4512a86907Daniel Mack 42423caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* FIXME */ 42523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (request != UAC_SET_CUR) { 42623caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); 42723caaf19b11eda7054348452e1618d4512a86907Daniel Mack return -EINVAL; 42823caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 42923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 43023caaf19b11eda7054348452e1618d4512a86907Daniel Mack request = UAC2_CS_CUR; 43123caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds value_set = convert_bytes_value(cval, value_set); 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[0] = value_set & 0xff; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[1] = (value_set >> 8) & 0xff; 436cf3f9130f48ed04f32a31cfad21f576d45b8788bViral Mehta while (timeout-- > 0) 4373d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack if (snd_usb_ctl_msg(chip->dev, 4383d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 4403d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf, val_len, 100) >= 0) 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 44384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 4443d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 44886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4507b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 453641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 454641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int index, int value) 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 456641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 457a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack unsigned int read_only = (channel == 0) ? 458a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->master_readonly : 459a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->ch_readonly & (1 << (channel - 1)); 460a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack 461a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (read_only) { 462a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", 463a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack __func__, channel, cval->control); 464a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack return 0; 465a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack } 466a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack 4677b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, 468641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai value); 469641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 470641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 471641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 472641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = value; 473641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4767bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai/* 4777bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai * TLV callback for mixer volume controls 4787bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai */ 4797bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwaistatic int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 4807bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai unsigned int size, unsigned int __user *_tlv) 4817bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai{ 4827bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 483b8e1c73f4608b8b9ca1e8f1a09f9fd8684e78071Takashi Iwai DECLARE_TLV_DB_MINMAX(scale, 0, 0); 4847bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai 4857bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (size < sizeof(scale)) 4867bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -ENOMEM; 487c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[2] = cval->dBmin; 488c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[3] = cval->dBmax; 4897bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (copy_to_user(_tlv, scale, sizeof(scale))) 4907bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -EFAULT; 4917bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return 0; 4927bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai} 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parser routines begin here... 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 49886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid); 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * check if the input/output channel routing is enabled on the given bitmap. 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * used for mixer unit parser 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int idx = ich * num_outs + och; 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bmap[idx >> 3] & (0x80 >> (idx & 7)); 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add an alsa control element 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * search and increment the index until an empty slot is found. 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if failed, give up and free the control instance. 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 52186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 52384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 52484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch while (snd_ctl_find_id(state->chip->card, &kctl->id)) 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.index++; 52684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); 5286639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return err; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5306639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->elem_id = &kctl->id; 5316639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->next_id_elem = state->mixer->id_elems[cval->id]; 5326639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch state->mixer->id_elems[cval->id] = cval; 5336639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * get a terminal name string 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct iterm_name_combo { 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} iterm_names[] = { 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0300, "Output" }, 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0301, "Speaker" }, 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0302, "Headphone" }, 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0303, "HMD Audio" }, 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0304, "Desktop Speaker" }, 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0305, "Room Speaker" }, 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0306, "Com Speaker" }, 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0307, "LFE" }, 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0600, "External In" }, 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0601, "Analog In" }, 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0602, "Digital In" }, 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0603, "Line" }, 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0604, "Legacy In" }, 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0605, "IEC958 In" }, 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0606, "1394 DA Stream" }, 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0607, "1394 DV Stream" }, 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0700, "Embedded" }, 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0701, "Noise Source" }, 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0702, "Equalization Noise" }, 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0703, "CD" }, 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0704, "DAT" }, 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0705, "DCC" }, 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0706, "MiniDisk" }, 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0707, "Analog Tape" }, 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0708, "Phonograph" }, 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0709, "VCR Audio" }, 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070a, "Video Disk Audio" }, 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070b, "DVD Audio" }, 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070c, "TV Tuner Audio" }, 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070d, "Satellite Rec Audio" }, 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070e, "Cable Tuner Audio" }, 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070f, "DSS Audio" }, 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0710, "Radio Receiver" }, 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0711, "Radio Transmitter" }, 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0712, "Multi-Track Recorder" }, 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0713, "Synthesizer" }, 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 58486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *name, int maxlen, int term_only) 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct iterm_name_combo *names; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->name) 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* virtual type - not a real terminal */ 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->type >> 16) { 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (term_only) 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type >> 16) { 597de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Selector"); return 8; 59969da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_PROCESSING_UNIT: 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Process Unit"); return 12; 60169da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_EXTENSION_UNIT: 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Ext Unit"); return 8; 603de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mixer"); return 5; 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(name, "Unit %d", iterm->id); 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type & 0xff00) { 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0100: 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "PCM"); return 3; 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0200: 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mic"); return 3; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0400: 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Headset"); return 7; 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0500: 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Phone"); return 5; 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (names = iterm_names; names->type; names++) 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (names->type == iterm->type) { 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, names->name); 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return strlen(names->name); 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse the source unit recursively until it reaches to a terminal 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or a branched unit. 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 63486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 63609414207d4daab8c4990bface3a79fdba3474becDaniel Mack int err; 63723caaf19b11eda7054348452e1618d4512a86907Daniel Mack void *p1; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(term, 0, sizeof(*term)); 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((p1 = find_audio_control_unit(state, id)) != NULL) { 64123caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char *hdr = p1; 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 64323caaf19b11eda7054348452e1618d4512a86907Daniel Mack switch (hdr[2]) { 644de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 64523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 64623caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_input_terminal_descriptor *d = p1; 64723caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = le16_to_cpu(d->wTerminalType); 64823caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = d->bNrChannels; 64923caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 65023caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = d->iTerminal; 65123caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 65223caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_input_terminal_descriptor *d = p1; 65323caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = le16_to_cpu(d->wTerminalType); 65423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = d->bNrChannels; 65523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 65623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = d->iTerminal; 65709414207d4daab8c4990bface3a79fdba3474becDaniel Mack 65809414207d4daab8c4990bface3a79fdba3474becDaniel Mack /* call recursively to get the clock selectors */ 65909414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = check_input_term(state, d->bCSourceID, term); 66009414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (err < 0) 66109414207d4daab8c4990bface3a79fdba3474becDaniel Mack return err; 66223caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 66423caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_FEATURE_UNIT: { 66523caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* the header is the same for v1 and v2 */ 66623caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_feature_unit_descriptor *d = p1; 6675e688883563ef62bd3725922f1a795a8253df499Daniel Mack id = d->bSourceID; 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 66923caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 67023caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_MIXER_UNIT: { 67123caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_mixer_unit_descriptor *d = p1; 67223caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 67323caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 67423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); 67523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_mixer_unit_iMixer(d); 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 67723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 67809414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC_SELECTOR_UNIT: 67909414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SELECTOR: { 68023caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_selector_unit_descriptor *d = p1; 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* call recursively to retrieve the channel info */ 68223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_input_term(state, d->baSourceID[0], term) < 0) 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 68423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 68623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_selector_unit_iSelector(d); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 68823caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 68969da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_PROCESSING_UNIT: 69069da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_EXTENSION_UNIT: { 69123caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_processing_unit_descriptor *d = p1; 69223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (d->bNrInPins) { 69323caaf19b11eda7054348452e1618d4512a86907Daniel Mack id = d->baSourceID[0]; 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 69623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 69723caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = uac_processing_unit_bNrChannels(d); 69823caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); 69923caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 70123caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 70209414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SOURCE: { 70309414207d4daab8c4990bface3a79fdba3474becDaniel Mack struct uac_clock_source_descriptor *d = p1; 70409414207d4daab8c4990bface3a79fdba3474becDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 70509414207d4daab8c4990bface3a79fdba3474becDaniel Mack term->id = id; 70609414207d4daab8c4990bface3a79fdba3474becDaniel Mack term->name = d->iClockSource; 70709414207d4daab8c4990bface3a79fdba3474becDaniel Mack return 0; 70809414207d4daab8c4990bface3a79fdba3474becDaniel Mack } 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Feature Unit 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* feature unit control information */ 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_feature_control_info { 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int type; /* control type (mute, volume, etc.) */ 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_feature_control_info audio_feature_info[] = { 7282e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Mute", USB_MIXER_INV_BOOLEAN }, 7292e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Volume", USB_MIXER_S16 }, 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Bass", USB_MIXER_S8 }, 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Mid", USB_MIXER_S8 }, 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Treble", USB_MIXER_S8 }, 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ 7342e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Auto Gain Control", USB_MIXER_BOOLEAN }, 7352e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Delay Control", USB_MIXER_U16 }, 7362e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Bass Boost", USB_MIXER_BOOLEAN }, 7372e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Loudness", USB_MIXER_BOOLEAN }, 7382e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack /* UAC2 specific */ 7392e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Input Gain Control", USB_MIXER_U16 }, 7402e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, 7412e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Phase Inverter Control", USB_MIXER_BOOLEAN }, 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private_free callback */ 74686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_elem_free(struct snd_kcontrol *kctl) 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7484d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kfree(kctl->private_data); 7494d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kctl->private_data = NULL; 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * interface to ALSA control for feature/mixer units 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve the minimum and maximum values for the specified control 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 76086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_min_max(struct usb_mixer_elem_info *cval, int default_min) 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7623d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 7633d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* for failsafe */ 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = default_min; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->max = cval->min + 1; 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 768c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = cval->dBmax = 0; 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int minchn = 0; 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_CHANNELS; i++) 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask & (1 << i)) { 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds minchn = i + 1; 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 783de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 784de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 78584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", 7863d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack cval->id, snd_usb_ctrl_intf(chip), cval->control, cval->id); 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 789de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int last_valid_res = cval->res; 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (cval->res > 1) { 7957b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 7967b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack (cval->control << 8) | minchn, cval->res / 2) < 0) 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res /= 2; 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 800de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = last_valid_res; 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->res == 0) 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 80514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 80614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai /* Additional checks for the proper resolution 80714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * 80814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * Some devices report smaller resolutions than actually 80914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * reacting. They don't return errors but simply clip 81014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * to the lower aligned value. 81114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai */ 81214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (cval->min + cval->res < cval->max) { 81314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int last_valid_res = cval->res; 81414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int saved, test, check; 815641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &saved); 81614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai for (;;) { 81714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test = saved; 81814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->max) 81914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test += cval->res; 82014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else 82114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test -= cval->res; 82214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->min || test > cval->max || 823641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, test) || 824641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &check)) { 82514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res = last_valid_res; 82614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 82714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 82814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test == check) 82914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 83014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res *= 2; 83114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 832641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, saved); 83314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 83414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 837c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 838c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* USB descriptions contain the dB scale in 1/256 dB unit 839c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela * while ALSA TLV contains in 1/100 dB unit 840c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela */ 841c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 842c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 843c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 844c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* something is wrong; assume it's either from/to 0dB */ 845c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin < 0) 846c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = 0; 847c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela else if (cval->dBmin > 0) 848c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = 0; 849c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 850c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* totally crap, return an error */ 851c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return -EINVAL; 852c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 853c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 854c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get a feature/mixer unit info */ 86086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 86286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = cval->channels; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.max = 1; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->initialized) 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 87814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai uinfo->value.integer.max = 87914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai (cval->max - cval->min + cval->res - 1) / cval->res; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get the current value from feature/mixer unit */ 88586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 88786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, err; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 890641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[0] = cval->min; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 894641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 895641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 896641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &val); 897641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 898641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 899641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_relative_value(cval, val); 900641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[cnt] = val; 901641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 903641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 906641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &val); 907641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 908641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put the current value to feature/mixer unit */ 91686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 91886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, oval, err; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int changed = 0; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 925641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 926641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 927641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &oval); 928641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 929641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 930641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = ucontrol->value.integer.value[cnt]; 931641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_abs_value(cval, val); 932641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (oval != val) { 933641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, c + 1, cnt, val); 934641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai changed = 1; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 936641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 940641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &oval); 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 942641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 946641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, 0, 0, val); 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds changed = 1; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return changed; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 95386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new usb_feature_unit_ctl = { 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later manually */ 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_feature_get, 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_feature_put, 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 96123caaf19b11eda7054348452e1618d4512a86907Daniel Mack/* the read-only variant */ 96223caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 96323caaf19b11eda7054348452e1618d4512a86907Daniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 96423caaf19b11eda7054348452e1618d4512a86907Daniel Mack .name = "", /* will be filled later manually */ 96523caaf19b11eda7054348452e1618d4512a86907Daniel Mack .info = mixer_ctl_feature_info, 96623caaf19b11eda7054348452e1618d4512a86907Daniel Mack .get = mixer_ctl_feature_get, 96723caaf19b11eda7054348452e1618d4512a86907Daniel Mack .put = NULL, 96823caaf19b11eda7054348452e1618d4512a86907Daniel Mack}; 96923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a feature control 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 97508d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwaistatic size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 97608d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai{ 97708d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 97808d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai} 97908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai 98099fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic void build_feature_ctl(struct mixer_build *state, void *raw_desc, 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int ctl_mask, int control, 98223caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct usb_audio_term *iterm, int unitid, 983a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack int readonly_mask) 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 98599fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int len = 0; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mapped_name = 0; 98899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack int nameid = uac_feature_unit_iFeature(desc); 98986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 99086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 991c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control++; /* change from zero-based to 1-based value */ 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: not supported yet */ 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1000c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, control); 1001c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1004561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 100984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = control; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask = ctl_mask; 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = audio_feature_info[control-1].type; 1014a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (ctl_mask == 0) { 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; /* master channel */ 1016a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->master_readonly = readonly_mask; 1017a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack } else { 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, c = 0; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 16; i++) 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ctl_mask & (1 << i)) 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c++; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = c; 1023a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->ch_readonly = readonly_mask; 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1029a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack /* if all channels in the mask are marked read-only, make the control 1030a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * read-only. set_cur_mix_value() will check the mask again and won't 1031a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * issue write commands to read-only channels. */ 1032a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (cval->channels == readonly_mask) 103323caaf19b11eda7054348452e1618d4512a86907Daniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 103423caaf19b11eda7054348452e1618d4512a86907Daniel Mack else 103523caaf19b11eda7054348452e1618d4512a86907Daniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 103623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1044c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mapped_name = len != 0; 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len && nameid) 1047c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = snd_usb_copy_string_desc(state, nameid, 1048c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela kctl->id.name, sizeof(kctl->id.name)); 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (control) { 105165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack case UAC_FU_MUTE: 105265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack case UAC_FU_VOLUME: 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the control name. the rule is: 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if a name id is given in descriptor, use it. 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected input can be determined, then use the name 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of terminal type. 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected output can be determined, use it. 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - otherwise, anonymous name. 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) { 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snprintf(kctl->id.name, sizeof(kctl->id.name), 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Feature %d", unitid); 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the stream direction: 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the connected output is USB stream, then it's likely a 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * capture stream. otherwise it should be playback (hopefully :) 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! mapped_name && ! (state->oterm.type >> 16)) { 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((state->oterm.type & 0xff00) == 0x0100) { 107408d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Capture"); 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 107608d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Playback"); 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 107965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 108008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai " Switch" : " Volume"); 108165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (control == UAC_FU_VOLUME) { 10827bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai kctl->tlv.c = mixer_vol_tlv; 10837bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai kctl->vd[0].access |= 10847bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_READ | 10857bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 1086c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela check_mapped_dB(map, cval); 10877bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai } 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, audio_feature_info[control-1].name, 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(kctl->id.name)); 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10972cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* volume control quirks */ 109827d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch switch (state->chip->usb_id) { 109927d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0101): 110027d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0104): 110127d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0105): 110227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0672, 0x1041): 11032cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* quirk for UDA1321/N101. 11042cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * note that detection between firmware 2.1.1.7 (N101) 11052cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * and later 2.1.1.21 is not very clear from datasheets. 11062cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * I hope that the min value is -15360 for newer firmware --jk 11072cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher */ 110827d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (!strcmp(kctl->id.name, "PCM Playback Volume") && 110927d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->min == -15616) { 11102cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 11112cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for UDA1321/N101 chip\n"); 111227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->max = -256; 111327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch } 11142cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 11152cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 11162cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher case USB_ID(0x046d, 0x09a4): 11172cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 11182cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 11192cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for QuickCam E3500\n"); 11202cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->min = 6080; 11212cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->max = 8768; 11222cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->res = 192; 11232cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher } 11242cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 11252cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 1126a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher case USB_ID(0x046d, 0x0809): 1127a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher case USB_ID(0x046d, 0x0991): 1128a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher /* Most audio usb devices lie about volume resolution. 1129a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher * Most Logitech webcams have res = 384. 1130a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher * Proboly there is some logitech magic behind this number --fishor 1131a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher */ 1132a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 1133a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher snd_printk(KERN_INFO 1134a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher "set resolution quirk: cval->res = 384\n"); 1135a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher cval->res = 384; 1136a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher } 1137a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher break; 1138a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); 114384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch add_control_to_empty(state, kctl); 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a feature unit 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * most of controlls are defined here. 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 115328e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mackstatic int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels, i, j; 115686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int master_bits, first_ch_bits; 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, csize; 115923caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 116023caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *bmaControls; 116123caaf19b11eda7054348452e1618d4512a86907Daniel Mack 116223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 116323caaf19b11eda7054348452e1618d4512a86907Daniel Mack csize = hdr->bControlSize; 116423caaf19b11eda7054348452e1618d4512a86907Daniel Mack channels = (hdr->bLength - 7) / csize - 1; 116523caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls = hdr->bmaControls; 116623caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { 116723caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 116823caaf19b11eda7054348452e1618d4512a86907Daniel Mack csize = 4; 1169e8d0fee70b66694959eab10c41788b9279d73629Daniel Mack channels = (hdr->bLength - 6) / 4 - 1; 117023caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls = ftr->bmaControls; 117123caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 117323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { 1174de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* parse the source unit */ 117923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the input source type and name */ 118323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_input_term(state, hdr->bSourceID, &iterm) < 0) 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 118623caaf19b11eda7054348452e1618d4512a86907Daniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 11870c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* master configuration quirks */ 11880c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen switch (state->chip->usb_id) { 11890c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen case USB_ID(0x08bb, 0x2702): 11900c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen snd_printk(KERN_INFO 11910c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen "usbmixer: master volume quirk for PCM2702 chip\n"); 11920c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* disable non-functional volume control */ 119365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 11940c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen break; 11950c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen } 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (channels > 0) 119723caaf19b11eda7054348452e1618d4512a86907Daniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first_ch_bits = 0; 120023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 120123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 120223caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* check all control types */ 120323caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (i = 0; i < 10; i++) { 120423caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_bits = 0; 120523caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (j = 0; j < channels; j++) { 120623caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 120723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (mask & (1 << i)) 120823caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_bits |= (1 << j); 120923caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 121023caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* audio class v1 controls are never read-only */ 121123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 121223caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); 121323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (master_bits & (1 << i)) 121423caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); 121523caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 121623caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 121723caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (i = 0; i < 30/2; i++) { 121823caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_bits = 0; 121923caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_read_only = 0; 122023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 122123caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (j = 0; j < channels; j++) { 122223caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1223dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (uac2_control_is_readable(mask, i)) { 122423caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_bits |= (1 << j); 1225dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (!uac2_control_is_writeable(mask, i)) 122623caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_read_only |= (1 << j); 122723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 122823caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 122923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 1230a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack /* NOTE: build_feature_ctl() will mark the control read-only if all channels 1231a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * are marked read-only in the descriptors. Otherwise, the control will be 1232a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * reported as writeable, but the driver will not actually issue a write 1233a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * command for read-only channels */ 123423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 1235a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); 1236dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (uac2_control_is_readable(master_bits, i)) 123723caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 1238dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack !uac2_control_is_writeable(master_bits, i)); 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer Unit 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a mixer unit control 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the callbacks are identical with feature unit. 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * input channel number (zero based) is given in control field instead. 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125799fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic void build_mixer_unit_ctl(struct mixer_build *state, 125899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_mixer_unit_descriptor *desc, 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int in_pin, int in_ch, int unitid, 126086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term *iterm) 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 126286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 126399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, len; 126586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1266c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1268c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1269c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1272561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = in_ch + 1; /* based on 1 */ 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_S16; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_outs; i++) { 128123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask |= (1 << i); 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels++; 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1298c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 130308d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Volume"); 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 130784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch add_control_to_empty(state, kctl); 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a mixer unit 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 131499fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 131699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 131786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int input_pins, num_ins, num_outs; 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pin, ich, err; 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 132199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* no bmControls field (e.g. Maya44) -> ignore */ 132699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bLength <= 10 + input_pins) { 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = 0; 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich = 0; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pin = 0; pin < input_pins; pin++) { 133499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 133799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins += iterm.channels; 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (; ich < num_ins; ++ich) { 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int och, ich_has_controls = 0; 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (och = 0; och < num_outs; ++och) { 134523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich, och, num_outs)) { 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich_has_controls = 1; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ich_has_controls) 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds build_mixer_unit_ctl(state, desc, pin, ich, 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unitid, &iterm); 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Processing Unit / Extension Unit 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for processing/extension unit */ 136586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 136786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, val; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &val); 137184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (err < 0 && cval->mixer->ignore_ctl_error) { 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = cval->min; 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for processing/extension unit */ 138386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 138586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &oval); 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 139084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_cur_ctl_value(cval, cval->control << 8, val); 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for processing/extension unit */ 140486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_procunit_ctl = { 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_procunit_get, 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_procunit_put, 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * predefined data for processing units 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_value_info { 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int control; 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *suffix; 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_type; 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int min_value; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_info { 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *values; 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info updown_proc_info[] = { 143065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 143165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info prologic_proc_info[] = { 143565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 143665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info threed_enh_proc_info[] = { 144065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 144165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info reverb_proc_info[] = { 144565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 144665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 144765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 144865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info chorus_proc_info[] = { 145265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 145365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 145465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 145565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info dcr_proc_info[] = { 145965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 146065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 146165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 146265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 146365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 146465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_info procunits[] = { 146965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 147065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 147165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 147265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 147365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 147465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14777d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/* 14787d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * predefined data for extension units 14797d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 14807d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_rate_xu_info[] = { 1481e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1482e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack { 0 } 14837d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14847d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_source_xu_info[] = { 14857d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 14867d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14877d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14887d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info spdif_format_xu_info[] = { 14897d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 14907d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14917d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14927d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info soft_limit_xu_info[] = { 14937d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 14947d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14957d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14967d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_info extunits[] = { 14977d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 14987d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 14997d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 15007d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 15017d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 15027d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a processing/extension unit 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 150699fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 150899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 150999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack int num_ins = desc->bNrInPins; 151086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 151186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, err, nameid, type, len; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_info *info; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *valinfo; 1515c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_value_info default_value_info[] = { 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x01, "Switch", USB_MIXER_BOOLEAN }, 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_info default_info = { 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0, NULL, default_value_info 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 152423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 152523caaf19b11eda7054348452e1618d4512a86907Daniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) { 153199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 153599fc86450c439039d2ef88d06b222fd51a779176Daniel Mack type = le16_to_cpu(desc->wProcessType); 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (info = list; info && info->type; info++) 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->type == type) 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! info || ! info->type) 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info = &default_info; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (valinfo = info->values; valinfo->control; valinfo++) { 154323caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 154499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack 154599fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1547c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, valinfo->control); 1548c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1550561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 155584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = valinfo->control; 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = valinfo->val_type; 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 156265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 156323caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: hard-coded */ 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 156699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->max = control_spec[0]; 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 15697d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else { 15707d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk if (type == USB_XU_CLOCK_RATE) { 15717d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk /* E-Mu USB 0404/0202/TrackerPre 15727d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * samplerate control quirk 15737d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 15747d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->min = 0; 15757d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->max = 5; 15767d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->res = 1; 15777d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->initialized = 1; 15787d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else 15797d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk get_min_max(cval, valinfo->min_value); 15807d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1590c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_mapped_name(map, kctl->id.name, 1591c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela sizeof(kctl->id.name))) 1592c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* nothing */ ; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (info->name) 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 159623caaf19b11eda7054348452e1618d4512a86907Daniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nameid) 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 160308d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " "); 160408d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, valinfo->suffix); 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 160884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = add_control_to_empty(state, kctl)) < 0) 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161599fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 161799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 162099fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 162299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack /* Note that we parse extension units with processing unit descriptors. 162399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack * That's ok as the layout is the same */ 162499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Selector Unit 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* info callback for selector unit 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use an enumerator type for routing 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 163586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 163786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kcontrol->private_value; 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16405e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai if (snd_BUG_ON(!itemlist)) 16415e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai return -EINVAL; 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = 1; 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.enumerated.items = cval->max; 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((int)uinfo->value.enumerated.item >= cval->max) 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.enumerated.item = cval->max - 1; 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for selector unit */ 165286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 165486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, err; 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 165709414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 165984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) { 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = 0; 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = val; 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for selector unit */ 167186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 167386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 167609414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 167884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.enumerated.item[0]; 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 168509414207d4daab8c4990bface3a79fdba3474becDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for selector unit */ 169286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_selectunit_ctl = { 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_selector_info, 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_selector_get, 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_selector_put, 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private free callback. 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free both private_data and private_value 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 170486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, num_ins = 0; 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_data) { 170986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = cval->max; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_data = NULL; 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_value) { 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kctl->private_value; 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist[i]); 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist); 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = 0; 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a selector unit 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 172699fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 172899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, nameid, len; 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 173186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 173286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1733c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **namelist; 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 174199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack for (i = 0; i < desc->bNrInPins; i++) { 174299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 174699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1749c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1750c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1753561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 175884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_U8; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 176399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->max = desc->bNrInPins; 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176709414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 176809414207d4daab8c4990bface3a79fdba3474becDaniel Mack cval->control = UAC2_CX_CLOCK_SELECTOR; 176909414207d4daab8c4990bface3a79fdba3474becDaniel Mack else 177009414207d4daab8c4990bface3a79fdba3474becDaniel Mack cval->control = 0; 177109414207d4daab8c4990bface3a79fdba3474becDaniel Mack 177299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist) { 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_ITEM_NAME_LEN 64 177999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack for (i = 0; i < desc->bNrInPins; i++) { 178086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist[i]) { 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 17857fbe3ca571e4b0795b729658e3d76824be54cb18Mariusz Kozlowski while (i--) 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist[i]); 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist); 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17918e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch len = check_mapped_selector_name(state, unitid, i, namelist[i], 17928e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch MAX_ITEM_NAME_LEN); 179399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sprintf(namelist[i], "Input %d", i); 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1802878b4789196e3cd470f843854b6b09d963214659Jesper Juhl kfree(namelist); 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = (unsigned long)namelist; 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_selector_elem_free; 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 180999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack nameid = uac_selector_unit_iSelector(desc); 1810c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len) 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (nameid) 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.name, sizeof(kctl->id.name), 0); 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 182109414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 182209414207d4daab8c4990bface3a79fdba3474becDaniel Mack append_ctl_name(kctl, " Clock Source"); 182309414207d4daab8c4990bface3a79fdba3474becDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 182408d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Capture Source"); 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 182608d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Playback Source"); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", 183099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->id, kctl->id.name, desc->bNrInPins); 183184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = add_control_to_empty(state, kctl)) < 0) 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse an audio unit recursively 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid) 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *p1; 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_and_set_bit(unitid, state->unitbitmap)) 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* the unit already visited */ 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p1 = find_audio_control_unit(state, unitid); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p1) { 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (p1[2]) { 1856de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 185709414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SOURCE: 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* NOP */ 1859de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_mixer_unit(state, unitid, p1); 1861de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 186209414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SELECTOR: 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_selector_unit(state, unitid, p1); 1864de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_FEATURE_UNIT: 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_feature_unit(state, unitid, p1); 186669da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_PROCESSING_UNIT: 186723caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* UAC2_EFFECT_UNIT has the same value */ 186823caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) 186923caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_processing_unit(state, unitid, p1); 187023caaf19b11eda7054348452e1618d4512a86907Daniel Mack else 187123caaf19b11eda7054348452e1618d4512a86907Daniel Mack return 0; /* FIXME - effect units not implemented yet */ 187269da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_EXTENSION_UNIT: 187323caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 187423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) 187523caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_extension_unit(state, unitid, p1); 187623caaf19b11eda7054348452e1618d4512a86907Daniel Mack else /* UAC_VERSION_2 */ 187723caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_processing_unit(state, unitid, p1); 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 188584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 18866639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->id_elems); 18876639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (mixer->urb) { 18886639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->urb->transfer_buffer); 18896639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_free_urb(mixer->urb); 18906639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 189168df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_free_urb(mixer->rc_urb); 1892b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch kfree(mixer->rc_setup_packet); 189384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch kfree(mixer); 189484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 189584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 189686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_mixer_dev_free(struct snd_device *device) 189784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 189884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer = device->device_data; 189984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_usb_mixer_free(mixer); 190084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 190184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 190284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * create mixer controls 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1906de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 190884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 191086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct mixer_build state; 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_ctl_map *map; 191384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_host_interface *hostif; 191423caaf19b11eda7054348452e1618d4512a86907Daniel Mack void *p; 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19163d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack hostif = mixer->chip->ctrl_intf; 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&state, 0, sizeof(state)); 191884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.chip = mixer->chip; 191984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.mixer = mixer; 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.buffer = hostif->extra; 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.buflen = hostif->extralen; 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check the mapping table */ 192427d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch for (map = usbmix_ctl_maps; map->id; map++) { 192527d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (map->id == state.chip->usb_id) { 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.map = map->map; 19278e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch state.selector_map = map->selector_map; 192884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->ignore_ctl_error = map->ignore_ctl_error; 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 193323caaf19b11eda7054348452e1618d4512a86907Daniel Mack p = NULL; 193423caaf19b11eda7054348452e1618d4512a86907Daniel Mack while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { 193523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (mixer->protocol == UAC_VERSION_1) { 193669da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack struct uac1_output_terminal_descriptor *desc = p; 193723caaf19b11eda7054348452e1618d4512a86907Daniel Mack 193823caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < sizeof(*desc)) 193923caaf19b11eda7054348452e1618d4512a86907Daniel Mack continue; /* invalid descriptor? */ 194023caaf19b11eda7054348452e1618d4512a86907Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 194123caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.id = desc->bTerminalID; 194223caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 194323caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.name = desc->iTerminal; 194423caaf19b11eda7054348452e1618d4512a86907Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 194523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (err < 0) 194623caaf19b11eda7054348452e1618d4512a86907Daniel Mack return err; 194723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 194823caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_output_terminal_descriptor *desc = p; 194923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 195023caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < sizeof(*desc)) 195123caaf19b11eda7054348452e1618d4512a86907Daniel Mack continue; /* invalid descriptor? */ 195223caaf19b11eda7054348452e1618d4512a86907Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 195323caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.id = desc->bTerminalID; 195423caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 195523caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.name = desc->iTerminal; 195623caaf19b11eda7054348452e1618d4512a86907Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 195723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (err < 0) 195823caaf19b11eda7054348452e1618d4512a86907Daniel Mack return err; 195909414207d4daab8c4990bface3a79fdba3474becDaniel Mack 196009414207d4daab8c4990bface3a79fdba3474becDaniel Mack /* for UAC2, use the same approach to also add the clock selectors */ 196109414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 196209414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (err < 0) 196309414207d4daab8c4990bface3a79fdba3474becDaniel Mack return err; 196423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 196623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 196984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 19707b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackvoid snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 19716639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 197286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *info; 19736639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 19746639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) 19756639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 19766639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch info->elem_id); 19776639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 19786639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 1979ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 1980ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid, 1981ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval) 1982ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 1983ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 1984ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "S8", "U8", "S16", "U16"}; 1985ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Unit: %i\n", unitid); 1986ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (cval->elem_id) 1987ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", 1988ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->elem_id->name, cval->elem_id->index); 1989ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 1990ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "channels=%i, type=\"%s\"\n", cval->id, 1991ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->control, cval->cmask, cval->channels, 1992ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela val_types[cval->val_type]); 1993ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 1994ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->min, cval->max, cval->dBmin, cval->dBmax); 1995ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 1996ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1997ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 1998ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_buffer *buffer) 1999ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 2000ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_usb_audio *chip = entry->private_data; 2001ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_interface *mixer; 2002ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval; 2003ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid; 2004ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2005ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela list_for_each_entry(mixer, &chip->mixer_list, list) { 2006ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, 20077affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 20083d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 20097affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela mixer->ignore_ctl_error); 2010ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 2011ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 2012ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (cval = mixer->id_elems[unitid]; cval; 2013ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval = cval->next_id_elem) 2014ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_usb_mixer_dump_cval(buffer, unitid, cval); 2015ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 2016ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 2017ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 2018ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2019e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackstatic void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 2020e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack int attribute, int value, int index) 2021e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack{ 2022e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct usb_mixer_elem_info *info; 2023e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 unitid = (index >> 8) & 0xff; 2024e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 control = (value >> 8) & 0xff; 2025e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 channel = value & 0xff; 2026e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2027e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (channel >= MAX_CHANNELS) { 2028e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", 2029e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __func__, channel); 2030e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack return; 2031e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2032e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2033e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { 2034e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (info->control != control) 2035e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack continue; 2036e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2037e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack switch (attribute) { 2038e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_CUR: 2039e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* invalidate cache, so the value is read from the device */ 2040e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (channel) 2041e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->cached &= ~(1 << channel); 2042e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack else /* master channel */ 2043e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->cached = 0; 2044e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2045e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 2046e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->elem_id); 2047e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2048e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2049e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_RANGE: 2050e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* TODO */ 2051e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2052e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2053e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_MEM: 2054e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* TODO */ 2055e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2056e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2057e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack default: 2058e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", 2059e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack attribute); 2060e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2061e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } /* switch */ 2062e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2063e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack} 2064e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2065e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackstatic void snd_usb_mixer_interrupt(struct urb *urb) 20666639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 20676639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer = urb->context; 2068e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack int len = urb->actual_length; 2069e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2070e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (urb->status != 0) 2071e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack goto requeue; 20726639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2073e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2074e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct uac1_status_word *status; 20756639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2076e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (status = urb->transfer_buffer; 2077e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len >= sizeof(*status); 2078e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len -= sizeof(*status), status++) { 20796639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", 2080e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack status->bStatusType, 2081e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack status->bOriginator); 2082e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 20836639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* ignore any notifications not from the control interface */ 2084e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2085e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 20866639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch continue; 2087e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2088e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2089e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2090b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch else 2091e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2092e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2093e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } else { /* UAC_VERSION_2 */ 2094e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct uac2_interrupt_data_msg *msg; 2095e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2096e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (msg = urb->transfer_buffer; 2097e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len >= sizeof(*msg); 2098e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len -= sizeof(*msg), msg++) { 2099e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* drop vendor specific and endpoint requests */ 2100e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2101e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2102e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack continue; 2103e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2104e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2105e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack le16_to_cpu(msg->wValue), 2106e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack le16_to_cpu(msg->wIndex)); 21076639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 21086639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 2109e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2110e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackrequeue: 21116639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (urb->status != -ENOENT && urb->status != -ECONNRESET) { 21126639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch urb->dev = mixer->chip->dev; 21136639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(urb, GFP_ATOMIC); 21146639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 21156639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 21166639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 21176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch/* create the handler for the optional status interrupt endpoint */ 21186639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladischstatic int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 21196639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 21206639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_host_interface *hostif; 21216639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_endpoint_descriptor *ep; 21226639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch void *transfer_buffer; 21236639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch int buffer_length; 21246639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch unsigned int epnum; 21256639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 21263d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack hostif = mixer->chip->ctrl_intf; 21276639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* we need one interrupt input endpoint */ 21286639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (get_iface_desc(hostif)->bNumEndpoints < 1) 21296639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 21306639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch ep = get_endpoint(hostif, 0); 2131913ae5a24efd27deef4fc154953871b62d0d99cdJulia Lawall if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 21326639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 21336639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 213442a6e66f1e40a930d093c33ba0bb9d8d8e4555edJulia Lawall epnum = usb_endpoint_num(ep); 21356639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch buffer_length = le16_to_cpu(ep->wMaxPacketSize); 21366639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 21376639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!transfer_buffer) 21386639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 21396639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 21406639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->urb) { 21416639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(transfer_buffer); 21426639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 21436639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 21446639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_fill_int_urb(mixer->urb, mixer->chip->dev, 21456639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_rcvintpipe(mixer->chip->dev, epnum), 21466639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer, buffer_length, 2147e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 21486639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(mixer->urb, GFP_KERNEL); 21496639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 21506639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 21516639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 21527a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwaiint snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 21537a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai int ignore_error) 215484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 215586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai static struct snd_device_ops dev_ops = { 215684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch .dev_free = snd_usb_mixer_dev_free 215784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch }; 215884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 2159ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_entry *entry; 21607b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack struct usb_host_interface *host_iface; 216123caaf19b11eda7054348452e1618d4512a86907Daniel Mack int err; 216284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 216384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch strcpy(chip->card->mixername, "USB Mixer"); 216484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 2165561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 216684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (!mixer) 216784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return -ENOMEM; 216884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->chip = chip; 21697a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai mixer->ignore_ctl_error = ignore_error; 2170291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2171291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela GFP_KERNEL); 21726639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->id_elems) { 21736639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer); 21746639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 21756639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 217684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 21777b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 2178ca4c2adaf2d7efcc43e16c8010cf4c30def75058Jaroslav Kysela mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol; 21797b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack 21806639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if ((err = snd_usb_mixer_controls(mixer)) < 0 || 218193446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch (err = snd_usb_mixer_status_create(mixer)) < 0) 218293446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 218384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 21847b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2185468b8fde24d49f5b34e9152981824b9d4ecd1a2eClemens Ladisch 218684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); 218793446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch if (err < 0) 218893446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 2189ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2190ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (list_empty(&chip->mixer_list) && 2191ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2192ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2193ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 219484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch list_add(&mixer->list, &chip->mixer_list); 219584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 219693446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch 219793446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch_error: 219893446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch snd_usb_mixer_free(mixer); 219993446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch return err; 220084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 220184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 220284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischvoid snd_usb_mixer_disconnect(struct list_head *p) 220384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 22046639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer; 22057b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack 22066639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer = list_entry(p, struct usb_mixer_interface, list); 220768df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->urb); 220868df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->rc_urb); 220984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 2210