mixer.c revision 67e1daa0bb30eda6ec5add27c3abf4536030f5a6
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 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/list.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 3528e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack#include <linux/usb/audio.h> 3623caaf19b11eda7054348452e1618d4512a86907Daniel Mack#include <linux/usb/audio-v2.h> 3728e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/core.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/control.h> 40b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch#include <sound/hwdep.h> 41aafad5629a949d0ad41180f8a746b6cd7654e317Clemens Ladisch#include <sound/info.h> 427bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai#include <sound/tlv.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "usbaudio.h" 45f0b5e634ff25e02a64676022ee13284a9c810879Daniel Mack#include "mixer.h" 46e5779998bf8b70e48a6cc208c8b61b33bd6117eaDaniel Mack#include "helper.h" 477b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack#include "mixer_quirks.h" 484d1a70dad0e1c44dc0725de6de25aceead48599eRaimonds Cicans 49ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela#define MAX_ID_ELEMS 256 50ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_audio_term { 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int id; 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels; 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int chconfig; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int name; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usbmix_name_map; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistruct mixer_build { 6286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_usb_audio *chip; 6384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *buffer; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int buflen; 66291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 6786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term oterm; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_name_map *map; 698e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *selector_map; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_BOOLEAN, 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_INV_BOOLEAN, 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_S8, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_U8, 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_S16, 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_U16, 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 827d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/*E-mu 0202(0404) eXtension Unit(XU) control*/ 837d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 847d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE = 0xe301, 857d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE = 0xe302, 867d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_IO_STATUS = 0xe303, 877d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DEVICE_OPTIONS = 0xe304, 887d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIRECT_MONITORING = 0xe305, 897d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_METERING = 0xe306 907d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 917d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 927d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 937d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 947d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 957d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 967d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * manual mapping of mixer names 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the mixer topology is too complicated and the parsed names are 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ambiguous, add the entries in usbmixer_maps.c. 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 103f0b5e634ff25e02a64676022ee13284a9c810879Daniel Mack#include "mixer_maps.c" 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic const struct usbmix_name_map * 106c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselafind_map(struct mixer_build *state, int unitid, int control) 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 108c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *p = state->map; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 110c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p) 111c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (p = state->map; p->id; p++) { 114c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p->id == unitid && 115c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela (!control || !p->control || control == p->control)) 116c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return p; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 118c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* get the mapped name if the unit matches */ 122c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic int 123c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 125c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || !p->name) 126c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 0; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela buflen--; 129c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return strlcpy(buf, p->name, buflen); 130c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 131c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 132c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* check whether the control should be ignored */ 133c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline int 134c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_ignored_ctl(const struct usbmix_name_map *p) 135c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 136c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || p->name || p->dB) 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 138c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 1; 139c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 140c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 141c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* dB mapping */ 142c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline void check_mapped_dB(const struct usbmix_name_map *p, 143c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela struct usb_mixer_elem_info *cval) 144c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 145c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p && p->dB) { 146c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = p->dB->min; 147c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = p->dB->max; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1518e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch/* get the mapped selector source name */ 15286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_mapped_selector_name(struct mixer_build *state, int unitid, 1538e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch int index, char *buf, int buflen) 1548e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch{ 1558e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *p; 1568e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1578e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (! state->selector_map) 1588e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1598e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch for (p = state->selector_map; p->id; p++) { 1608e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (p->id == unitid && index < p->count) 1618e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return strlcpy(buf, p->names[index], buflen); 1628e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch } 1638e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1648e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch} 1658e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * find an audio control unit with the given unit id 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17167e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack /* we just parse the header */ 17267e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 17367e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack 17467e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 17567e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack USB_DT_CS_INTERFACE)) != NULL) { 17667e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack if (hdr->bLength >= 4 && 17767e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 17867e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && 17967e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bUnitID == unit) 18067e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack return hdr; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18267e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copy a string with the given id 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[len] = 0; 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the byte/word on usb descriptor to the zero-based integer 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x80) 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x100; 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x8000) 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x10000; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the zero-based int to the byte/word for usb descriptor 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xff; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xffff; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* not reached */ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_relative_value(struct usb_mixer_elem_info *cval, int val) 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < cval->min) 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 25214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else if (val >= cval->max) 25314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai return (cval->max - cval->min + cval->res - 1) / cval->res; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val - cval->min) / cval->res; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_abs_value(struct usb_mixer_elem_info *cval, int val) 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < 0) 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->min; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val *= cval->res; 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val += cval->min; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val > cval->max) 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->max; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve a mixer value 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27623caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timeout = 10; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (timeout-- > 0) { 28384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (snd_usb_ctl_msg(cval->mixer->chip->dev, 28484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch usb_rcvctrlpipe(cval->mixer->chip->dev, 0), 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds request, 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 28784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch validx, cval->mixer->ctrlif | (cval->id << 8), 288a04395ead6d17c83da64264b6fe78f852a648202Thomas Reitmayr buf, val_len, 100) >= val_len) { 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 29484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29823caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 29923caaf19b11eda7054348452e1618d4512a86907Daniel Mack{ 30023caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char buf[14]; /* enough space for one range of 4 bytes */ 30123caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char *val; 30223caaf19b11eda7054348452e1618d4512a86907Daniel Mack int ret; 30323caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 bRequest; 30423caaf19b11eda7054348452e1618d4512a86907Daniel Mack 30523caaf19b11eda7054348452e1618d4512a86907Daniel Mack bRequest = (request == UAC_GET_CUR) ? 30623caaf19b11eda7054348452e1618d4512a86907Daniel Mack UAC2_CS_CUR : UAC2_CS_RANGE; 30723caaf19b11eda7054348452e1618d4512a86907Daniel Mack 30823caaf19b11eda7054348452e1618d4512a86907Daniel Mack ret = snd_usb_ctl_msg(cval->mixer->chip->dev, 30923caaf19b11eda7054348452e1618d4512a86907Daniel Mack usb_rcvctrlpipe(cval->mixer->chip->dev, 0), 31023caaf19b11eda7054348452e1618d4512a86907Daniel Mack bRequest, 31123caaf19b11eda7054348452e1618d4512a86907Daniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 31223caaf19b11eda7054348452e1618d4512a86907Daniel Mack validx, cval->mixer->ctrlif | (cval->id << 8), 31323caaf19b11eda7054348452e1618d4512a86907Daniel Mack buf, sizeof(buf), 1000); 31423caaf19b11eda7054348452e1618d4512a86907Daniel Mack 31523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ret < 0) { 31623caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 31723caaf19b11eda7054348452e1618d4512a86907Daniel Mack request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); 31823caaf19b11eda7054348452e1618d4512a86907Daniel Mack return ret; 31923caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 32023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 32123caaf19b11eda7054348452e1618d4512a86907Daniel Mack switch (request) { 32223caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_CUR: 32323caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf; 32423caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 32523caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_MIN: 32623caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16); 32723caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 32823caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_MAX: 32923caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16) * 2; 33023caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 33123caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_RES: 33223caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16) * 3; 33323caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 33423caaf19b11eda7054348452e1618d4512a86907Daniel Mack default: 33523caaf19b11eda7054348452e1618d4512a86907Daniel Mack return -EINVAL; 33623caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 33723caaf19b11eda7054348452e1618d4512a86907Daniel Mack 33823caaf19b11eda7054348452e1618d4512a86907Daniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); 33923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 34023caaf19b11eda7054348452e1618d4512a86907Daniel Mack return 0; 34123caaf19b11eda7054348452e1618d4512a86907Daniel Mack} 34223caaf19b11eda7054348452e1618d4512a86907Daniel Mack 34323caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 34423caaf19b11eda7054348452e1618d4512a86907Daniel Mack{ 34523caaf19b11eda7054348452e1618d4512a86907Daniel Mack return (cval->mixer->protocol == UAC_VERSION_1) ? 34623caaf19b11eda7054348452e1618d4512a86907Daniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 34723caaf19b11eda7054348452e1618d4512a86907Daniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 34823caaf19b11eda7054348452e1618d4512a86907Daniel Mack} 34923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 35086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 352de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* channel = 0: master, 1 = first channel */ 356641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 357641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int *value) 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 359de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 362641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int get_cur_mix_value(struct usb_mixer_elem_info *cval, 363641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int index, int *value) 364641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai{ 365641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 366641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 367641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (cval->cached & (1 << channel)) { 368641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai *value = cval->cache_val[index]; 369641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 370641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 371641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_raw(cval, channel, value); 372641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) { 373641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!cval->mixer->ignore_ctl_error) 37423caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", 375641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->control, channel, err); 376641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 377641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 378641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 379641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = *value; 380641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 381641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai} 382641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 383641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set a mixer value 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3887b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackint snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 3897b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack int request, int validx, int value_set) 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 39223caaf19b11eda7054348452e1618d4512a86907Daniel Mack int val_len, timeout = 10; 39323caaf19b11eda7054348452e1618d4512a86907Daniel Mack 39423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (cval->mixer->protocol == UAC_VERSION_1) { 39523caaf19b11eda7054348452e1618d4512a86907Daniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 39623caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 39723caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* audio class v2 controls are always 2 bytes in size */ 39823caaf19b11eda7054348452e1618d4512a86907Daniel Mack val_len = sizeof(__u16); 39923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 40023caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* FIXME */ 40123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (request != UAC_SET_CUR) { 40223caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); 40323caaf19b11eda7054348452e1618d4512a86907Daniel Mack return -EINVAL; 40423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 40523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 40623caaf19b11eda7054348452e1618d4512a86907Daniel Mack request = UAC2_CS_CUR; 40723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds value_set = convert_bytes_value(cval, value_set); 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[0] = value_set & 0xff; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[1] = (value_set >> 8) & 0xff; 412cf3f9130f48ed04f32a31cfad21f576d45b8788bViral Mehta while (timeout-- > 0) 41384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (snd_usb_ctl_msg(cval->mixer->chip->dev, 41484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch usb_sndctrlpipe(cval->mixer->chip->dev, 0), 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds request, 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 41784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch validx, cval->mixer->ctrlif | (cval->id << 8), 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf, val_len, 100) >= 0) 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 42084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 42184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4277b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 430641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 431641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int index, int value) 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 433641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 434a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack unsigned int read_only = (channel == 0) ? 435a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->master_readonly : 436a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->ch_readonly & (1 << (channel - 1)); 437a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack 438a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (read_only) { 439a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", 440a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack __func__, channel, cval->control); 441a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack return 0; 442a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack } 443a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack 4447b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, 445641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai value); 446641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 447641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 448641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 449641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = value; 450641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4537bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai/* 4547bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai * TLV callback for mixer volume controls 4557bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai */ 4567bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwaistatic int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 4577bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai unsigned int size, unsigned int __user *_tlv) 4587bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai{ 4597bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 460b8e1c73f4608b8b9ca1e8f1a09f9fd8684e78071Takashi Iwai DECLARE_TLV_DB_MINMAX(scale, 0, 0); 4617bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai 4627bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (size < sizeof(scale)) 4637bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -ENOMEM; 464c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[2] = cval->dBmin; 465c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[3] = cval->dBmax; 4667bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (copy_to_user(_tlv, scale, sizeof(scale))) 4677bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -EFAULT; 4687bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return 0; 4697bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai} 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parser routines begin here... 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 47586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid); 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * check if the input/output channel routing is enabled on the given bitmap. 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * used for mixer unit parser 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int idx = ich * num_outs + och; 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bmap[idx >> 3] & (0x80 >> (idx & 7)); 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add an alsa control element 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * search and increment the index until an empty slot is found. 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if failed, give up and free the control instance. 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 49686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 49886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 50084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 50184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch while (snd_ctl_find_id(state->chip->card, &kctl->id)) 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.index++; 50384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); 5056639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return err; 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5076639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->elem_id = &kctl->id; 5086639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->next_id_elem = state->mixer->id_elems[cval->id]; 5096639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch state->mixer->id_elems[cval->id] = cval; 5106639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * get a terminal name string 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct iterm_name_combo { 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} iterm_names[] = { 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0300, "Output" }, 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0301, "Speaker" }, 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0302, "Headphone" }, 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0303, "HMD Audio" }, 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0304, "Desktop Speaker" }, 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0305, "Room Speaker" }, 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0306, "Com Speaker" }, 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0307, "LFE" }, 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0600, "External In" }, 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0601, "Analog In" }, 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0602, "Digital In" }, 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0603, "Line" }, 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0604, "Legacy In" }, 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0605, "IEC958 In" }, 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0606, "1394 DA Stream" }, 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0607, "1394 DV Stream" }, 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0700, "Embedded" }, 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0701, "Noise Source" }, 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0702, "Equalization Noise" }, 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0703, "CD" }, 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0704, "DAT" }, 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0705, "DCC" }, 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0706, "MiniDisk" }, 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0707, "Analog Tape" }, 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0708, "Phonograph" }, 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0709, "VCR Audio" }, 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070a, "Video Disk Audio" }, 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070b, "DVD Audio" }, 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070c, "TV Tuner Audio" }, 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070d, "Satellite Rec Audio" }, 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070e, "Cable Tuner Audio" }, 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070f, "DSS Audio" }, 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0710, "Radio Receiver" }, 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0711, "Radio Transmitter" }, 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0712, "Multi-Track Recorder" }, 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0713, "Synthesizer" }, 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 56186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *name, int maxlen, int term_only) 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct iterm_name_combo *names; 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->name) 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* virtual type - not a real terminal */ 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->type >> 16) { 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (term_only) 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type >> 16) { 574de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Selector"); return 8; 576de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_PROCESSING_UNIT_V1: 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Process Unit"); return 12; 578de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_EXTENSION_UNIT_V1: 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Ext Unit"); return 8; 580de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mixer"); return 5; 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(name, "Unit %d", iterm->id); 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type & 0xff00) { 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0100: 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "PCM"); return 3; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0200: 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mic"); return 3; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0400: 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Headset"); return 7; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0500: 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Phone"); return 5; 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (names = iterm_names; names->type; names++) 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (names->type == iterm->type) { 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, names->name); 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return strlen(names->name); 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse the source unit recursively until it reaches to a terminal 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or a branched unit. 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 61186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 61323caaf19b11eda7054348452e1618d4512a86907Daniel Mack void *p1; 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(term, 0, sizeof(*term)); 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((p1 = find_audio_control_unit(state, id)) != NULL) { 61723caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char *hdr = p1; 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 61923caaf19b11eda7054348452e1618d4512a86907Daniel Mack switch (hdr[2]) { 620de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 62123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 62223caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_input_terminal_descriptor *d = p1; 62323caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = le16_to_cpu(d->wTerminalType); 62423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = d->bNrChannels; 62523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 62623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = d->iTerminal; 62723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 62823caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_input_terminal_descriptor *d = p1; 62923caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = le16_to_cpu(d->wTerminalType); 63023caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = d->bNrChannels; 63123caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 63223caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = d->iTerminal; 63323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 63523caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_FEATURE_UNIT: { 63623caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* the header is the same for v1 and v2 */ 63723caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_feature_unit_descriptor *d = p1; 6385e688883563ef62bd3725922f1a795a8253df499Daniel Mack id = d->bSourceID; 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 64023caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 64123caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_MIXER_UNIT: { 64223caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_mixer_unit_descriptor *d = p1; 64323caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 64423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 64523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); 64623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_mixer_unit_iMixer(d); 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 64823caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 64923caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_SELECTOR_UNIT: { 65023caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_selector_unit_descriptor *d = p1; 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* call recursively to retrieve the channel info */ 65223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_input_term(state, d->baSourceID[0], term) < 0) 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 65423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 65623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_selector_unit_iSelector(d); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 65823caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 659de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_PROCESSING_UNIT_V1: 66023caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_EXTENSION_UNIT_V1: { 66123caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_processing_unit_descriptor *d = p1; 66223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (d->bNrInPins) { 66323caaf19b11eda7054348452e1618d4512a86907Daniel Mack id = d->baSourceID[0]; 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 66623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 66723caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = uac_processing_unit_bNrChannels(d); 66823caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); 66923caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 67123caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Feature Unit 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* feature unit control information */ 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_feature_control_info { 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int type; /* control type (mute, volume, etc.) */ 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_feature_control_info audio_feature_info[] = { 6912e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Mute", USB_MIXER_INV_BOOLEAN }, 6922e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Volume", USB_MIXER_S16 }, 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Bass", USB_MIXER_S8 }, 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Mid", USB_MIXER_S8 }, 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Treble", USB_MIXER_S8 }, 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ 6972e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Auto Gain Control", USB_MIXER_BOOLEAN }, 6982e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Delay Control", USB_MIXER_U16 }, 6992e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Bass Boost", USB_MIXER_BOOLEAN }, 7002e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Loudness", USB_MIXER_BOOLEAN }, 7012e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack /* UAC2 specific */ 7022e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Input Gain Control", USB_MIXER_U16 }, 7032e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, 7042e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Phase Inverter Control", USB_MIXER_BOOLEAN }, 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private_free callback */ 70986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_elem_free(struct snd_kcontrol *kctl) 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7114d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kfree(kctl->private_data); 7124d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kctl->private_data = NULL; 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * interface to ALSA control for feature/mixer units 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve the minimum and maximum values for the specified control 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 72386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_min_max(struct usb_mixer_elem_info *cval, int default_min) 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* for failsafe */ 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = default_min; 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->max = cval->min + 1; 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 729c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = cval->dBmax = 0; 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int minchn = 0; 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_CHANNELS; i++) 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask & (1 << i)) { 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds minchn = i + 1; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 744de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 745de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 74684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", 74784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->id, cval->mixer->ctrlif, cval->control, cval->id); 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 750de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int last_valid_res = cval->res; 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (cval->res > 1) { 7567b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 7577b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack (cval->control << 8) | minchn, cval->res / 2) < 0) 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res /= 2; 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 761de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = last_valid_res; 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->res == 0) 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 76614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 76714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai /* Additional checks for the proper resolution 76814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * 76914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * Some devices report smaller resolutions than actually 77014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * reacting. They don't return errors but simply clip 77114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * to the lower aligned value. 77214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai */ 77314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (cval->min + cval->res < cval->max) { 77414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int last_valid_res = cval->res; 77514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int saved, test, check; 776641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &saved); 77714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai for (;;) { 77814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test = saved; 77914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->max) 78014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test += cval->res; 78114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else 78214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test -= cval->res; 78314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->min || test > cval->max || 784641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, test) || 785641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &check)) { 78614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res = last_valid_res; 78714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 78814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 78914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test == check) 79014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 79114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res *= 2; 79214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 793641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, saved); 79414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 79514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 798c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 799c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* USB descriptions contain the dB scale in 1/256 dB unit 800c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela * while ALSA TLV contains in 1/100 dB unit 801c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela */ 802c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 803c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 804c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 805c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* something is wrong; assume it's either from/to 0dB */ 806c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin < 0) 807c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = 0; 808c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela else if (cval->dBmin > 0) 809c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = 0; 810c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 811c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* totally crap, return an error */ 812c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return -EINVAL; 813c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 814c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 815c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get a feature/mixer unit info */ 82186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 82386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = cval->channels; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.max = 1; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->initialized) 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 83914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai uinfo->value.integer.max = 84014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai (cval->max - cval->min + cval->res - 1) / cval->res; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get the current value from feature/mixer unit */ 84686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 84886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, err; 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[0] = cval->min; 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 855641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 856641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 857641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &val); 858641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 859641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 860641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_relative_value(cval, val); 861641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[cnt] = val; 862641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 864641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 867641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &val); 868641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 869641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put the current value to feature/mixer unit */ 87786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 87986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, oval, err; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int changed = 0; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 886641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 887641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 888641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &oval); 889641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 890641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 891641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = ucontrol->value.integer.value[cnt]; 892641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_abs_value(cval, val); 893641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (oval != val) { 894641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, c + 1, cnt, val); 895641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai changed = 1; 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 897641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 901641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &oval); 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 903641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 907641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, 0, 0, val); 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds changed = 1; 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return changed; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new usb_feature_unit_ctl = { 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later manually */ 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_feature_get, 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_feature_put, 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 92223caaf19b11eda7054348452e1618d4512a86907Daniel Mack/* the read-only variant */ 92323caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 92423caaf19b11eda7054348452e1618d4512a86907Daniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 92523caaf19b11eda7054348452e1618d4512a86907Daniel Mack .name = "", /* will be filled later manually */ 92623caaf19b11eda7054348452e1618d4512a86907Daniel Mack .info = mixer_ctl_feature_info, 92723caaf19b11eda7054348452e1618d4512a86907Daniel Mack .get = mixer_ctl_feature_get, 92823caaf19b11eda7054348452e1618d4512a86907Daniel Mack .put = NULL, 92923caaf19b11eda7054348452e1618d4512a86907Daniel Mack}; 93023caaf19b11eda7054348452e1618d4512a86907Daniel Mack 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a feature control 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 93608d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwaistatic size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 93708d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai{ 93808d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 93908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai} 94008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai 94199fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic void build_feature_ctl(struct mixer_build *state, void *raw_desc, 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int ctl_mask, int control, 94323caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct usb_audio_term *iterm, int unitid, 944a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack int readonly_mask) 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 94699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int len = 0; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mapped_name = 0; 94999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack int nameid = uac_feature_unit_iFeature(desc); 95086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 95186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 952c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control++; /* change from zero-based to 1-based value */ 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 95665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: not supported yet */ 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, control); 962c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 965561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 97084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = control; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask = ctl_mask; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = audio_feature_info[control-1].type; 975a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (ctl_mask == 0) { 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; /* master channel */ 977a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->master_readonly = readonly_mask; 978a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack } else { 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, c = 0; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 16; i++) 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ctl_mask & (1 << i)) 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c++; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = c; 984a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->ch_readonly = readonly_mask; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 990a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack /* if all channels in the mask are marked read-only, make the control 991a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * read-only. set_cur_mix_value() will check the mask again and won't 992a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * issue write commands to read-only channels. */ 993a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (cval->channels == readonly_mask) 99423caaf19b11eda7054348452e1618d4512a86907Daniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 99523caaf19b11eda7054348452e1618d4512a86907Daniel Mack else 99623caaf19b11eda7054348452e1618d4512a86907Daniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 99723caaf19b11eda7054348452e1618d4512a86907Daniel Mack 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1005c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mapped_name = len != 0; 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len && nameid) 1008c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = snd_usb_copy_string_desc(state, nameid, 1009c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela kctl->id.name, sizeof(kctl->id.name)); 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (control) { 101265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack case UAC_FU_MUTE: 101365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack case UAC_FU_VOLUME: 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the control name. the rule is: 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if a name id is given in descriptor, use it. 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected input can be determined, then use the name 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of terminal type. 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected output can be determined, use it. 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - otherwise, anonymous name. 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) { 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snprintf(kctl->id.name, sizeof(kctl->id.name), 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Feature %d", unitid); 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the stream direction: 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the connected output is USB stream, then it's likely a 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * capture stream. otherwise it should be playback (hopefully :) 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! mapped_name && ! (state->oterm.type >> 16)) { 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((state->oterm.type & 0xff00) == 0x0100) { 103508d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Capture"); 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 103708d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Playback"); 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 104065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 104108d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai " Switch" : " Volume"); 104265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (control == UAC_FU_VOLUME) { 10437bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai kctl->tlv.c = mixer_vol_tlv; 10447bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai kctl->vd[0].access |= 10457bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_READ | 10467bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 1047c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela check_mapped_dB(map, cval); 10487bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai } 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, audio_feature_info[control-1].name, 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(kctl->id.name)); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10582cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* volume control quirks */ 105927d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch switch (state->chip->usb_id) { 106027d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0101): 106127d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0104): 106227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0105): 106327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0672, 0x1041): 10642cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* quirk for UDA1321/N101. 10652cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * note that detection between firmware 2.1.1.7 (N101) 10662cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * and later 2.1.1.21 is not very clear from datasheets. 10672cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * I hope that the min value is -15360 for newer firmware --jk 10682cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher */ 106927d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (!strcmp(kctl->id.name, "PCM Playback Volume") && 107027d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->min == -15616) { 10712cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 10722cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for UDA1321/N101 chip\n"); 107327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->max = -256; 107427d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch } 10752cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 10762cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 10772cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher case USB_ID(0x046d, 0x09a4): 10782cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 10792cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 10802cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for QuickCam E3500\n"); 10812cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->min = 6080; 10822cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->max = 8768; 10832cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->res = 192; 10842cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher } 10852cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 10862cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); 109184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch add_control_to_empty(state, kctl); 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a feature unit 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * most of controlls are defined here. 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 110128e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mackstatic int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels, i, j; 110486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int master_bits, first_ch_bits; 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, csize; 110723caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 110823caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *bmaControls; 110923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 111023caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 111123caaf19b11eda7054348452e1618d4512a86907Daniel Mack csize = hdr->bControlSize; 111223caaf19b11eda7054348452e1618d4512a86907Daniel Mack channels = (hdr->bLength - 7) / csize - 1; 111323caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls = hdr->bmaControls; 111423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { 111523caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 111623caaf19b11eda7054348452e1618d4512a86907Daniel Mack csize = 4; 1117e8d0fee70b66694959eab10c41788b9279d73629Daniel Mack channels = (hdr->bLength - 6) / 4 - 1; 111823caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls = ftr->bmaControls; 111923caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { 1122de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* parse the source unit */ 112723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the input source type and name */ 113123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_input_term(state, hdr->bSourceID, &iterm) < 0) 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 113423caaf19b11eda7054348452e1618d4512a86907Daniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 11350c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* master configuration quirks */ 11360c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen switch (state->chip->usb_id) { 11370c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen case USB_ID(0x08bb, 0x2702): 11380c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen snd_printk(KERN_INFO 11390c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen "usbmixer: master volume quirk for PCM2702 chip\n"); 11400c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* disable non-functional volume control */ 114165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 11420c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen break; 11430c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen } 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (channels > 0) 114523caaf19b11eda7054348452e1618d4512a86907Daniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first_ch_bits = 0; 114823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 114923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 115023caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* check all control types */ 115123caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (i = 0; i < 10; i++) { 115223caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_bits = 0; 115323caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (j = 0; j < channels; j++) { 115423caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 115523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (mask & (1 << i)) 115623caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_bits |= (1 << j); 115723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 115823caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* audio class v1 controls are never read-only */ 115923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 116023caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); 116123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (master_bits & (1 << i)) 116223caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); 116323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 116423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 116523caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (i = 0; i < 30/2; i++) { 116623caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* From the USB Audio spec v2.0: 116723caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls() is a (ch+1)-element array of 4-byte bitmaps, 116823caaf19b11eda7054348452e1618d4512a86907Daniel Mack each containing a set of bit pairs. If a Control is present, 116923caaf19b11eda7054348452e1618d4512a86907Daniel Mack it must be Host readable. If a certain Control is not 117023caaf19b11eda7054348452e1618d4512a86907Daniel Mack present then the bit pair must be set to 0b00. 117123caaf19b11eda7054348452e1618d4512a86907Daniel Mack If a Control is present but read-only, the bit pair must be 117223caaf19b11eda7054348452e1618d4512a86907Daniel Mack set to 0b01. If a Control is also Host programmable, the bit 117323caaf19b11eda7054348452e1618d4512a86907Daniel Mack pair must be set to 0b11. The value 0b10 is not allowed. */ 117423caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_bits = 0; 117523caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_read_only = 0; 117623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 117723caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (j = 0; j < channels; j++) { 117823caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1179dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (uac2_control_is_readable(mask, i)) { 118023caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_bits |= (1 << j); 1181dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (!uac2_control_is_writeable(mask, i)) 118223caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_read_only |= (1 << j); 118323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 118423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 118523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 1186a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack /* NOTE: build_feature_ctl() will mark the control read-only if all channels 1187a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * are marked read-only in the descriptors. Otherwise, the control will be 1188a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * reported as writeable, but the driver will not actually issue a write 1189a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * command for read-only channels */ 119023caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 1191a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); 1192dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (uac2_control_is_readable(master_bits, i)) 119323caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 1194dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack !uac2_control_is_writeable(master_bits, i)); 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer Unit 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a mixer unit control 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the callbacks are identical with feature unit. 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * input channel number (zero based) is given in control field instead. 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121399fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic void build_mixer_unit_ctl(struct mixer_build *state, 121499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_mixer_unit_descriptor *desc, 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int in_pin, int in_ch, int unitid, 121686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term *iterm) 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 121886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 121999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, len; 122186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1222c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1224c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1225c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1228561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = in_ch + 1; /* based on 1 */ 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_S16; 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_outs; i++) { 123723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask |= (1 << i); 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels++; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1254c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 125908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Volume"); 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 126384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch add_control_to_empty(state, kctl); 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a mixer unit 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 127099fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 127299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 127386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int input_pins, num_ins, num_outs; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pin, ich, err; 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 127799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* no bmControls field (e.g. Maya44) -> ignore */ 128299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bLength <= 10 + input_pins) { 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = 0; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich = 0; 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pin = 0; pin < input_pins; pin++) { 129099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 129399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins += iterm.channels; 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (; ich < num_ins; ++ich) { 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int och, ich_has_controls = 0; 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (och = 0; och < num_outs; ++och) { 130123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich, och, num_outs)) { 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich_has_controls = 1; 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ich_has_controls) 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds build_mixer_unit_ctl(state, desc, pin, ich, 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unitid, &iterm); 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Processing Unit / Extension Unit 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for processing/extension unit */ 132186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 132386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, val; 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &val); 132784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (err < 0 && cval->mixer->ignore_ctl_error) { 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = cval->min; 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for processing/extension unit */ 133986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 134186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &oval); 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 134684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_cur_ctl_value(cval, cval->control << 8, val); 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for processing/extension unit */ 136086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_procunit_ctl = { 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_procunit_get, 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_procunit_put, 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * predefined data for processing units 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_value_info { 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int control; 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *suffix; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_type; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int min_value; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_info { 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *values; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info updown_proc_info[] = { 138665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 138765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info prologic_proc_info[] = { 139165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 139265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info threed_enh_proc_info[] = { 139665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 139765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info reverb_proc_info[] = { 140165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 140265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 140365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 140465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info chorus_proc_info[] = { 140865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 140965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 141065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 141165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info dcr_proc_info[] = { 141565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 141665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 141765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 141865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 141965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 142065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_info procunits[] = { 142565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 142665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 142765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 142865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 142965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 143065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14337d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/* 14347d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * predefined data for extension units 14357d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 14367d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_rate_xu_info[] = { 1437e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1438e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack { 0 } 14397d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14407d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_source_xu_info[] = { 14417d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 14427d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14437d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14447d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info spdif_format_xu_info[] = { 14457d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 14467d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14477d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14487d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info soft_limit_xu_info[] = { 14497d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 14507d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14517d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14527d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_info extunits[] = { 14537d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 14547d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 14557d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 14567d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 14577d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 14587d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a processing/extension unit 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 146299fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 146499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 146599fc86450c439039d2ef88d06b222fd51a779176Daniel Mack int num_ins = desc->bNrInPins; 146686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 146786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, err, nameid, type, len; 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_info *info; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *valinfo; 1471c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_value_info default_value_info[] = { 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x01, "Switch", USB_MIXER_BOOLEAN }, 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_info default_info = { 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0, NULL, default_value_info 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 148023caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 148123caaf19b11eda7054348452e1618d4512a86907Daniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) { 148799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 149199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack type = le16_to_cpu(desc->wProcessType); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (info = list; info && info->type; info++) 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->type == type) 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! info || ! info->type) 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info = &default_info; 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (valinfo = info->values; valinfo->control; valinfo++) { 149923caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 150099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack 150199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1503c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, valinfo->control); 1504c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1506561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 151184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = valinfo->control; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = valinfo->val_type; 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 151865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 151923caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: hard-coded */ 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 152299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->max = control_spec[0]; 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 15257d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else { 15267d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk if (type == USB_XU_CLOCK_RATE) { 15277d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk /* E-Mu USB 0404/0202/TrackerPre 15287d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * samplerate control quirk 15297d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 15307d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->min = 0; 15317d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->max = 5; 15327d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->res = 1; 15337d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->initialized = 1; 15347d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else 15357d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk get_min_max(cval, valinfo->min_value); 15367d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1546c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_mapped_name(map, kctl->id.name, 1547c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela sizeof(kctl->id.name))) 1548c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* nothing */ ; 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (info->name) 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 155223caaf19b11eda7054348452e1618d4512a86907Daniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nameid) 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 155908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " "); 156008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, valinfo->suffix); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 156484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = add_control_to_empty(state, kctl)) < 0) 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 157199fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 157699fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack /* Note that we parse extension units with processing unit descriptors. 157999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack * That's ok as the layout is the same */ 158099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Selector Unit 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* info callback for selector unit 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use an enumerator type for routing 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 159186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 159386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kcontrol->private_value; 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15965e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai if (snd_BUG_ON(!itemlist)) 15975e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai return -EINVAL; 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = 1; 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.enumerated.items = cval->max; 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((int)uinfo->value.enumerated.item >= cval->max) 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.enumerated.item = cval->max - 1; 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for selector unit */ 160886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 161086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, err; 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, 0, &val); 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 161584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) { 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = 0; 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = val; 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for selector unit */ 162786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 162986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, 0, &oval); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 163484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.enumerated.item[0]; 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_cur_ctl_value(cval, 0, val); 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for selector unit */ 164886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_selectunit_ctl = { 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_selector_info, 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_selector_get, 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_selector_put, 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private free callback. 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free both private_data and private_value 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 166086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, num_ins = 0; 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_data) { 166586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = cval->max; 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_data = NULL; 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_value) { 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kctl->private_value; 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist[i]); 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist); 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = 0; 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a selector unit 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 168299fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 168499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, nameid, len; 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 168786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 168886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1689c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **namelist; 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 169299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 169799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack for (i = 0; i < desc->bNrInPins; i++) { 169899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1705c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1706c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1709561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 171484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_U8; 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 171999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->max = desc->bNrInPins; 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist) { 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_ITEM_NAME_LEN 64 173099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack for (i = 0; i < desc->bNrInPins; i++) { 173186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist[i]) { 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 17367fbe3ca571e4b0795b729658e3d76824be54cb18Mariusz Kozlowski while (i--) 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist[i]); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17428e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch len = check_mapped_selector_name(state, unitid, i, namelist[i], 17438e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch MAX_ITEM_NAME_LEN); 174499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sprintf(namelist[i], "Input %d", i); 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1753878b4789196e3cd470f843854b6b09d963214659Jesper Juhl kfree(namelist); 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = (unsigned long)namelist; 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_selector_elem_free; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack nameid = uac_selector_unit_iSelector(desc); 1761c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len) 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (nameid) 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.name, sizeof(kctl->id.name), 0); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((state->oterm.type & 0xff00) == 0x0100) 177308d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Capture Source"); 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 177508d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Playback Source"); 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", 177999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->id, kctl->id.name, desc->bNrInPins); 178084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = add_control_to_empty(state, kctl)) < 0) 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse an audio unit recursively 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid) 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *p1; 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_and_set_bit(unitid, state->unitbitmap)) 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* the unit already visited */ 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p1 = find_audio_control_unit(state, unitid); 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p1) { 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (p1[2]) { 1805de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* NOP */ 1807de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_mixer_unit(state, unitid, p1); 1809de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_selector_unit(state, unitid, p1); 1811de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_FEATURE_UNIT: 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_feature_unit(state, unitid, p1); 1813de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_PROCESSING_UNIT_V1: 181423caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* UAC2_EFFECT_UNIT has the same value */ 181523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) 181623caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_processing_unit(state, unitid, p1); 181723caaf19b11eda7054348452e1618d4512a86907Daniel Mack else 181823caaf19b11eda7054348452e1618d4512a86907Daniel Mack return 0; /* FIXME - effect units not implemented yet */ 1819de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_EXTENSION_UNIT_V1: 182023caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 182123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) 182223caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_extension_unit(state, unitid, p1); 182323caaf19b11eda7054348452e1618d4512a86907Daniel Mack else /* UAC_VERSION_2 */ 182423caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_processing_unit(state, unitid, p1); 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 183184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 183284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 18336639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->id_elems); 18346639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (mixer->urb) { 18356639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->urb->transfer_buffer); 18366639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_free_urb(mixer->urb); 18376639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 183868df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_free_urb(mixer->rc_urb); 1839b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch kfree(mixer->rc_setup_packet); 184084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch kfree(mixer); 184184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 184284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 184386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_mixer_dev_free(struct snd_device *device) 184484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 184584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer = device->device_data; 184684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_usb_mixer_free(mixer); 184784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 184884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 184984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * create mixer controls 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1853de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 185584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 185786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct mixer_build state; 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_ctl_map *map; 186084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_host_interface *hostif; 186123caaf19b11eda7054348452e1618d4512a86907Daniel Mack void *p; 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 186384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&state, 0, sizeof(state)); 186584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.chip = mixer->chip; 186684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.mixer = mixer; 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.buffer = hostif->extra; 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.buflen = hostif->extralen; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check the mapping table */ 187127d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch for (map = usbmix_ctl_maps; map->id; map++) { 187227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (map->id == state.chip->usb_id) { 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.map = map->map; 18748e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch state.selector_map = map->selector_map; 187584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->ignore_ctl_error = map->ignore_ctl_error; 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 188023caaf19b11eda7054348452e1618d4512a86907Daniel Mack p = NULL; 188123caaf19b11eda7054348452e1618d4512a86907Daniel Mack while ((p = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, p, UAC_OUTPUT_TERMINAL)) != NULL) { 188223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (mixer->protocol == UAC_VERSION_1) { 188323caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_output_terminal_descriptor_v1 *desc = p; 188423caaf19b11eda7054348452e1618d4512a86907Daniel Mack 188523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < sizeof(*desc)) 188623caaf19b11eda7054348452e1618d4512a86907Daniel Mack continue; /* invalid descriptor? */ 188723caaf19b11eda7054348452e1618d4512a86907Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 188823caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.id = desc->bTerminalID; 188923caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 189023caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.name = desc->iTerminal; 189123caaf19b11eda7054348452e1618d4512a86907Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 189223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (err < 0) 189323caaf19b11eda7054348452e1618d4512a86907Daniel Mack return err; 189423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 189523caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_output_terminal_descriptor *desc = p; 189623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 189723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < sizeof(*desc)) 189823caaf19b11eda7054348452e1618d4512a86907Daniel Mack continue; /* invalid descriptor? */ 189923caaf19b11eda7054348452e1618d4512a86907Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 190023caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.id = desc->bTerminalID; 190123caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 190223caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.name = desc->iTerminal; 190323caaf19b11eda7054348452e1618d4512a86907Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 190423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (err < 0) 190523caaf19b11eda7054348452e1618d4512a86907Daniel Mack return err; 190623caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 190823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 191184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 19127b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackvoid snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 19136639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 191486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *info; 19156639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 19166639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) 19176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 19186639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch info->elem_id); 19196639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 19206639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 1921ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 1922ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid, 1923ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval) 1924ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 1925ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 1926ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "S8", "U8", "S16", "U16"}; 1927ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Unit: %i\n", unitid); 1928ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (cval->elem_id) 1929ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", 1930ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->elem_id->name, cval->elem_id->index); 1931ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 1932ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "channels=%i, type=\"%s\"\n", cval->id, 1933ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->control, cval->cmask, cval->channels, 1934ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela val_types[cval->val_type]); 1935ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 1936ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->min, cval->max, cval->dBmin, cval->dBmax); 1937ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 1938ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1939ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 1940ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_buffer *buffer) 1941ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 1942ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_usb_audio *chip = entry->private_data; 1943ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_interface *mixer; 1944ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval; 1945ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid; 1946ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1947ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela list_for_each_entry(mixer, &chip->mixer_list, list) { 1948ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, 19497affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 19507affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela chip->usb_id, mixer->ctrlif, 19517affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela mixer->ignore_ctl_error); 1952ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 1953ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 1954ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (cval = mixer->id_elems[unitid]; cval; 1955ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval = cval->next_id_elem) 1956ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_usb_mixer_dump_cval(buffer, unitid, cval); 1957ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 1958ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 1959ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 1960ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1961e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackstatic void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 1962e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack int attribute, int value, int index) 1963e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack{ 1964e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct usb_mixer_elem_info *info; 1965e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 unitid = (index >> 8) & 0xff; 1966e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 control = (value >> 8) & 0xff; 1967e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 channel = value & 0xff; 1968e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1969e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (channel >= MAX_CHANNELS) { 1970e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", 1971e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __func__, channel); 1972e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack return; 1973e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 1974e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1975e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { 1976e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (info->control != control) 1977e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack continue; 1978e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1979e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack switch (attribute) { 1980e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_CUR: 1981e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* invalidate cache, so the value is read from the device */ 1982e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (channel) 1983e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->cached &= ~(1 << channel); 1984e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack else /* master channel */ 1985e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->cached = 0; 1986e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1987e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 1988e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->elem_id); 1989e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 1990e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1991e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_RANGE: 1992e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* TODO */ 1993e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 1994e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1995e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_MEM: 1996e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* TODO */ 1997e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 1998e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 1999e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack default: 2000e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", 2001e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack attribute); 2002e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2003e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } /* switch */ 2004e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2005e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack} 2006e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2007e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackstatic void snd_usb_mixer_interrupt(struct urb *urb) 20086639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 20096639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer = urb->context; 2010e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack int len = urb->actual_length; 2011e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2012e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (urb->status != 0) 2013e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack goto requeue; 20146639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2015e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2016e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct uac1_status_word *status; 20176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2018e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (status = urb->transfer_buffer; 2019e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len >= sizeof(*status); 2020e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len -= sizeof(*status), status++) { 20216639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", 2022e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack status->bStatusType, 2023e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack status->bOriginator); 2024e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 20256639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* ignore any notifications not from the control interface */ 2026e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2027e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 20286639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch continue; 2029e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2030e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2031e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2032b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch else 2033e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2034e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2035e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } else { /* UAC_VERSION_2 */ 2036e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct uac2_interrupt_data_msg *msg; 2037e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2038e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (msg = urb->transfer_buffer; 2039e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len >= sizeof(*msg); 2040e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len -= sizeof(*msg), msg++) { 2041e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* drop vendor specific and endpoint requests */ 2042e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2043e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2044e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack continue; 2045e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2046e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2047e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack le16_to_cpu(msg->wValue), 2048e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack le16_to_cpu(msg->wIndex)); 20496639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 20506639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 2051e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2052e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackrequeue: 20536639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (urb->status != -ENOENT && urb->status != -ECONNRESET) { 20546639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch urb->dev = mixer->chip->dev; 20556639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(urb, GFP_ATOMIC); 20566639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 20576639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 20586639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 20596639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch/* create the handler for the optional status interrupt endpoint */ 20606639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladischstatic int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 20616639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 20626639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_host_interface *hostif; 20636639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_endpoint_descriptor *ep; 20646639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch void *transfer_buffer; 20656639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch int buffer_length; 20666639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch unsigned int epnum; 20676639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 20686639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; 20696639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* we need one interrupt input endpoint */ 20706639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (get_iface_desc(hostif)->bNumEndpoints < 1) 20716639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 20726639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch ep = get_endpoint(hostif, 0); 2073913ae5a24efd27deef4fc154953871b62d0d99cdJulia Lawall if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 20746639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 20756639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 207642a6e66f1e40a930d093c33ba0bb9d8d8e4555edJulia Lawall epnum = usb_endpoint_num(ep); 20776639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch buffer_length = le16_to_cpu(ep->wMaxPacketSize); 20786639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 20796639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!transfer_buffer) 20806639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 20816639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 20826639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->urb) { 20836639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(transfer_buffer); 20846639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 20856639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 20866639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_fill_int_urb(mixer->urb, mixer->chip->dev, 20876639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_rcvintpipe(mixer->chip->dev, epnum), 20886639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer, buffer_length, 2089e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 20906639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(mixer->urb, GFP_KERNEL); 20916639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 20926639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 20936639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 20947a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwaiint snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 20957a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai int ignore_error) 209684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 209786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai static struct snd_device_ops dev_ops = { 209884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch .dev_free = snd_usb_mixer_dev_free 209984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch }; 210084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 2101ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_entry *entry; 21027b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack struct usb_host_interface *host_iface; 210323caaf19b11eda7054348452e1618d4512a86907Daniel Mack int err; 210484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 210584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch strcpy(chip->card->mixername, "USB Mixer"); 210684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 2107561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 210884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (!mixer) 210984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return -ENOMEM; 211084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->chip = chip; 211184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->ctrlif = ctrlif; 21127a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai mixer->ignore_ctl_error = ignore_error; 2113291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2114291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela GFP_KERNEL); 21156639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->id_elems) { 21166639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer); 21176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 21186639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 211984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 21207b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 2121ca4c2adaf2d7efcc43e16c8010cf4c30def75058Jaroslav Kysela mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol; 21227b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack 21236639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if ((err = snd_usb_mixer_controls(mixer)) < 0 || 212493446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch (err = snd_usb_mixer_status_create(mixer)) < 0) 212593446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 212684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 21277b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2128468b8fde24d49f5b34e9152981824b9d4ecd1a2eClemens Ladisch 212984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); 213093446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch if (err < 0) 213193446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 2132ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2133ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (list_empty(&chip->mixer_list) && 2134ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2135ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2136ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 213784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch list_add(&mixer->list, &chip->mixer_list); 213884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 213993446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch 214093446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch_error: 214193446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch snd_usb_mixer_free(mixer); 214293446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch return err; 214384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 214484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 214584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischvoid snd_usb_mixer_disconnect(struct list_head *p) 214684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 21476639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer; 21487b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack 21496639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer = list_entry(p, struct usb_mixer_interface, list); 215068df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->urb); 215168df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->rc_urb); 215284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 2153