mixer.c revision 5e5c860400ef1307e3d87aebd5ec8a35b078ca51
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (Tentative) USB Audio Driver for ALSA 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer control part 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Many codes borrowed from audio.c by 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alan Cox (alan@lxorguk.ukuu.org.uk) 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Thomas Sailer (sailer@ife.ee.ethz.ch) 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack/* 30157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * TODOs, for both the mixer and the streaming interfaces: 31157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * 32157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - support for UAC2 effect units 33157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - support for graphical equalizers 34157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - RANGE and MEM set commands (UAC2) 35157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - RANGE and MEM interrupt dispatchers (UAC2) 36157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - audio channel clustering (UAC2) 37157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - audio sample rate converter units (UAC2) 38157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - proper handling of clock multipliers (UAC2) 39157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - dispatch clock change notifications (UAC2) 40157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - stop PCM streams which use a clock that became invalid 41157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - stop PCM streams which use a clock selector that has changed 42157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack * - parse available sample rates again when clock sources changed 43157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack */ 44157a57b6fae7d3c6d24b7623dcc6679c6d244621Daniel Mack 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/list.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 5128e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack#include <linux/usb/audio.h> 5223caaf19b11eda7054348452e1618d4512a86907Daniel Mack#include <linux/usb/audio-v2.h> 5328e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/core.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/control.h> 56b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch#include <sound/hwdep.h> 57aafad5629a949d0ad41180f8a746b6cd7654e317Clemens Ladisch#include <sound/info.h> 587bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai#include <sound/tlv.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "usbaudio.h" 61f0b5e634ff25e02a64676022ee13284a9c810879Daniel Mack#include "mixer.h" 62e5779998bf8b70e48a6cc208c8b61b33bd6117eaDaniel Mack#include "helper.h" 637b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack#include "mixer_quirks.h" 6488a8516a2128a6d078a106ead48092240e8a138fOliver Neukum#include "power.h" 654d1a70dad0e1c44dc0725de6de25aceead48599eRaimonds Cicans 66ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela#define MAX_ID_ELEMS 256 67ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_audio_term { 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int id; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int chconfig; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int name; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usbmix_name_map; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistruct mixer_build { 7986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_usb_audio *chip; 8084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *buffer; 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int buflen; 83291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 8486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term oterm; 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_name_map *map; 868e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *selector_map; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891cdfa9f34acb9780e0fe7b8a41fb1a885ab94735Joseph Teichman/*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ 907d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 917d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE = 0xe301, 927d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE = 0xe302, 937d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_IO_STATUS = 0xe303, 947d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DEVICE_OPTIONS = 0xe304, 957d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIRECT_MONITORING = 0xe305, 967d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_METERING = 0xe306 977d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 987d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 997d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 1007d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 1017d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 1027d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 1037d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * manual mapping of mixer names 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the mixer topology is too complicated and the parsed names are 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ambiguous, add the entries in usbmixer_maps.c. 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 110f0b5e634ff25e02a64676022ee13284a9c810879Daniel Mack#include "mixer_maps.c" 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic const struct usbmix_name_map * 113c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselafind_map(struct mixer_build *state, int unitid, int control) 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 115c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *p = state->map; 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 117c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p) 118c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (p = state->map; p->id; p++) { 121c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p->id == unitid && 122c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela (!control || !p->control || control == p->control)) 123c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return p; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 125c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* get the mapped name if the unit matches */ 129c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic int 130c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 132c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || !p->name) 133c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 0; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 135c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela buflen--; 136c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return strlcpy(buf, p->name, buflen); 137c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 138c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 139c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* check whether the control should be ignored */ 140c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline int 141c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_ignored_ctl(const struct usbmix_name_map *p) 142c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 143c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || p->name || p->dB) 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 145c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 1; 146c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 147c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 148c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* dB mapping */ 149c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline void check_mapped_dB(const struct usbmix_name_map *p, 150c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela struct usb_mixer_elem_info *cval) 151c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 152c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p && p->dB) { 153c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = p->dB->min; 154c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = p->dB->max; 1555e5c860400ef1307e3d87aebd5ec8a35b078ca51Takashi Iwai cval->initialized = 1; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1598e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch/* get the mapped selector source name */ 16086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_mapped_selector_name(struct mixer_build *state, int unitid, 1618e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch int index, char *buf, int buflen) 1628e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch{ 1638e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *p; 1648e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1658e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (! state->selector_map) 1668e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1678e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch for (p = state->selector_map; p->id; p++) { 1688e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (p->id == unitid && index < p->count) 1698e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return strlcpy(buf, p->names[index], buflen); 1708e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch } 1718e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1728e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch} 1738e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * find an audio control unit with the given unit id 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17967e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack /* we just parse the header */ 18067e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 18167e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack 18267e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 18367e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack USB_DT_CS_INTERFACE)) != NULL) { 18467e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack if (hdr->bLength >= 4 && 18567e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 18667e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && 18767e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack hdr->bUnitID == unit) 18867e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack return hdr; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19067e1daa0bb30eda6ec5add27c3abf4536030f5a6Daniel Mack 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copy a string with the given id 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[len] = 0; 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the byte/word on usb descriptor to the zero-based integer 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x80) 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x100; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x8000) 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x10000; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the zero-based int to the byte/word for usb descriptor 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xff; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xffff; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* not reached */ 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_relative_value(struct usb_mixer_elem_info *cval, int val) 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < cval->min) 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 26014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else if (val >= cval->max) 26114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai return (cval->max - cval->min + cval->res - 1) / cval->res; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val - cval->min) / cval->res; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_abs_value(struct usb_mixer_elem_info *cval, int val) 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < 0) 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->min; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val *= cval->res; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val += cval->min; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val > cval->max) 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->max; 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve a mixer value 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28423caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2863d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timeout = 10; 29088a8516a2128a6d078a106ead48092240e8a138fOliver Neukum int err; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29288a8516a2128a6d078a106ead48092240e8a138fOliver Neukum err = snd_usb_autoresume(cval->mixer->chip); 29388a8516a2128a6d078a106ead48092240e8a138fOliver Neukum if (err < 0) 29488a8516a2128a6d078a106ead48092240e8a138fOliver Neukum return -EIO; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (timeout-- > 0) { 2963d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 2983d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 299a04395ead6d17c83da64264b6fe78f852a648202Thomas Reitmayr buf, val_len, 100) >= val_len) { 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 30188a8516a2128a6d078a106ead48092240e8a138fOliver Neukum snd_usb_autosuspend(cval->mixer->chip); 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 30588a8516a2128a6d078a106ead48092240e8a138fOliver Neukum snd_usb_autosuspend(cval->mixer->chip); 30684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 307b415ec7041429bb2cde3419e9556049fe12bf27aTakashi Iwai request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31123caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 31223caaf19b11eda7054348452e1618d4512a86907Daniel Mack{ 3133d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 314e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ 31523caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char *val; 316e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack int ret, size; 31723caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 bRequest; 31823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 319e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack if (request == UAC_GET_CUR) { 320e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack bRequest = UAC2_CS_CUR; 321e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack size = sizeof(__u16); 322e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack } else { 323e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack bRequest = UAC2_CS_RANGE; 324e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack size = sizeof(buf); 325e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack } 326e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack 327e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack memset(buf, 0, sizeof(buf)); 32823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 32988a8516a2128a6d078a106ead48092240e8a138fOliver Neukum ret = snd_usb_autoresume(chip) ? -EIO : 0; 33088a8516a2128a6d078a106ead48092240e8a138fOliver Neukum if (ret) 33188a8516a2128a6d078a106ead48092240e8a138fOliver Neukum goto error; 33288a8516a2128a6d078a106ead48092240e8a138fOliver Neukum 3333d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 33423caaf19b11eda7054348452e1618d4512a86907Daniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3353d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 336e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack buf, size, 1000); 33788a8516a2128a6d078a106ead48092240e8a138fOliver Neukum snd_usb_autosuspend(chip); 33823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 33923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ret < 0) { 34088a8516a2128a6d078a106ead48092240e8a138fOliver Neukumerror: 34109414207d4daab8c4990bface3a79fdba3474becDaniel Mack snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 3423d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); 34323caaf19b11eda7054348452e1618d4512a86907Daniel Mack return ret; 34423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 34523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 346e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack /* FIXME: how should we handle multiple triplets here? */ 347e8bdb6bbab60a8731f21823c86391f176d052348Daniel Mack 34823caaf19b11eda7054348452e1618d4512a86907Daniel Mack switch (request) { 34923caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_CUR: 35023caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf; 35123caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 35223caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_MIN: 35323caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16); 35423caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 35523caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_MAX: 35623caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16) * 2; 35723caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 35823caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_GET_RES: 35923caaf19b11eda7054348452e1618d4512a86907Daniel Mack val = buf + sizeof(__u16) * 3; 36023caaf19b11eda7054348452e1618d4512a86907Daniel Mack break; 36123caaf19b11eda7054348452e1618d4512a86907Daniel Mack default: 36223caaf19b11eda7054348452e1618d4512a86907Daniel Mack return -EINVAL; 36323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 36423caaf19b11eda7054348452e1618d4512a86907Daniel Mack 36523caaf19b11eda7054348452e1618d4512a86907Daniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); 36623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 36723caaf19b11eda7054348452e1618d4512a86907Daniel Mack return 0; 36823caaf19b11eda7054348452e1618d4512a86907Daniel Mack} 36923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 37023caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 37123caaf19b11eda7054348452e1618d4512a86907Daniel Mack{ 37223caaf19b11eda7054348452e1618d4512a86907Daniel Mack return (cval->mixer->protocol == UAC_VERSION_1) ? 37323caaf19b11eda7054348452e1618d4512a86907Daniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 37423caaf19b11eda7054348452e1618d4512a86907Daniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 37523caaf19b11eda7054348452e1618d4512a86907Daniel Mack} 37623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 37786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 379de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* channel = 0: master, 1 = first channel */ 383641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 384641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int *value) 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 386de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 389641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int get_cur_mix_value(struct usb_mixer_elem_info *cval, 390641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int index, int *value) 391641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai{ 392641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 393641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 394641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (cval->cached & (1 << channel)) { 395641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai *value = cval->cache_val[index]; 396641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 397641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 398641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_raw(cval, channel, value); 399641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) { 400641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!cval->mixer->ignore_ctl_error) 40123caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", 402641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->control, channel, err); 403641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 404641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 405641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 406641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = *value; 407641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 408641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai} 409641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 410641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set a mixer value 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4157b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackint snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 4167b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack int request, int validx, int value_set) 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4183d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 42088a8516a2128a6d078a106ead48092240e8a138fOliver Neukum int val_len, err, timeout = 10; 42123caaf19b11eda7054348452e1618d4512a86907Daniel Mack 42223caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (cval->mixer->protocol == UAC_VERSION_1) { 42323caaf19b11eda7054348452e1618d4512a86907Daniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 42423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 42523caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* audio class v2 controls are always 2 bytes in size */ 42623caaf19b11eda7054348452e1618d4512a86907Daniel Mack val_len = sizeof(__u16); 42723caaf19b11eda7054348452e1618d4512a86907Daniel Mack 42823caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* FIXME */ 42923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (request != UAC_SET_CUR) { 43023caaf19b11eda7054348452e1618d4512a86907Daniel Mack snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); 43123caaf19b11eda7054348452e1618d4512a86907Daniel Mack return -EINVAL; 43223caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 43323caaf19b11eda7054348452e1618d4512a86907Daniel Mack 43423caaf19b11eda7054348452e1618d4512a86907Daniel Mack request = UAC2_CS_CUR; 43523caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds value_set = convert_bytes_value(cval, value_set); 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[0] = value_set & 0xff; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[1] = (value_set >> 8) & 0xff; 44088a8516a2128a6d078a106ead48092240e8a138fOliver Neukum err = snd_usb_autoresume(chip); 44188a8516a2128a6d078a106ead48092240e8a138fOliver Neukum if (err < 0) 44288a8516a2128a6d078a106ead48092240e8a138fOliver Neukum return -EIO; 443cf3f9130f48ed04f32a31cfad21f576d45b8788bViral Mehta while (timeout-- > 0) 4443d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack if (snd_usb_ctl_msg(chip->dev, 4453d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 4473d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 44888a8516a2128a6d078a106ead48092240e8a138fOliver Neukum buf, val_len, 100) >= 0) { 44988a8516a2128a6d078a106ead48092240e8a138fOliver Neukum snd_usb_autosuspend(chip); 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 45188a8516a2128a6d078a106ead48092240e8a138fOliver Neukum } 45288a8516a2128a6d078a106ead48092240e8a138fOliver Neukum snd_usb_autosuspend(chip); 45384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 4543d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 45886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4607b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 463641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 464641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int index, int value) 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 466641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 467a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack unsigned int read_only = (channel == 0) ? 468a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->master_readonly : 469a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->ch_readonly & (1 << (channel - 1)); 470a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack 471a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (read_only) { 472a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", 473a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack __func__, channel, cval->control); 474a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack return 0; 475a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack } 476a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack 4777b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, 478641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai value); 479641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 480641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 481641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 482641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = value; 483641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4867bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai/* 4877bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai * TLV callback for mixer volume controls 4887bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai */ 4897bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwaistatic int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 4907bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai unsigned int size, unsigned int __user *_tlv) 4917bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai{ 4927bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 493b8e1c73f4608b8b9ca1e8f1a09f9fd8684e78071Takashi Iwai DECLARE_TLV_DB_MINMAX(scale, 0, 0); 4947bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai 4957bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (size < sizeof(scale)) 4967bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -ENOMEM; 497c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[2] = cval->dBmin; 498c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[3] = cval->dBmax; 4997bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (copy_to_user(_tlv, scale, sizeof(scale))) 5007bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -EFAULT; 5017bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return 0; 5027bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai} 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parser routines begin here... 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 50886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid); 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * check if the input/output channel routing is enabled on the given bitmap. 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * used for mixer unit parser 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int idx = ich * num_outs + och; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bmap[idx >> 3] & (0x80 >> (idx & 7)); 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add an alsa control element 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * search and increment the index until an empty slot is found. 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if failed, give up and free the control instance. 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 529ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mackint snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, 530ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack struct snd_kcontrol *kctl) 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 53286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 53484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 535ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.index++; 537ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); 5396639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return err; 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5416639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->elem_id = &kctl->id; 542ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack cval->next_id_elem = mixer->id_elems[cval->id]; 543ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack mixer->id_elems[cval->id] = cval; 5446639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * get a terminal name string 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct iterm_name_combo { 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} iterm_names[] = { 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0300, "Output" }, 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0301, "Speaker" }, 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0302, "Headphone" }, 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0303, "HMD Audio" }, 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0304, "Desktop Speaker" }, 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0305, "Room Speaker" }, 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0306, "Com Speaker" }, 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0307, "LFE" }, 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0600, "External In" }, 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0601, "Analog In" }, 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0602, "Digital In" }, 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0603, "Line" }, 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0604, "Legacy In" }, 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0605, "IEC958 In" }, 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0606, "1394 DA Stream" }, 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0607, "1394 DV Stream" }, 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0700, "Embedded" }, 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0701, "Noise Source" }, 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0702, "Equalization Noise" }, 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0703, "CD" }, 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0704, "DAT" }, 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0705, "DCC" }, 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0706, "MiniDisk" }, 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0707, "Analog Tape" }, 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0708, "Phonograph" }, 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0709, "VCR Audio" }, 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070a, "Video Disk Audio" }, 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070b, "DVD Audio" }, 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070c, "TV Tuner Audio" }, 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070d, "Satellite Rec Audio" }, 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070e, "Cable Tuner Audio" }, 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070f, "DSS Audio" }, 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0710, "Radio Receiver" }, 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0711, "Radio Transmitter" }, 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0712, "Multi-Track Recorder" }, 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0713, "Synthesizer" }, 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 59586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *name, int maxlen, int term_only) 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct iterm_name_combo *names; 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->name) 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* virtual type - not a real terminal */ 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->type >> 16) { 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (term_only) 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type >> 16) { 608de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Selector"); return 8; 61069da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_PROCESSING_UNIT: 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Process Unit"); return 12; 61269da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_EXTENSION_UNIT: 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Ext Unit"); return 8; 614de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mixer"); return 5; 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(name, "Unit %d", iterm->id); 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type & 0xff00) { 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0100: 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "PCM"); return 3; 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0200: 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mic"); return 3; 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0400: 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Headset"); return 7; 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0500: 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Phone"); return 5; 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (names = iterm_names; names->type; names++) 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (names->type == iterm->type) { 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, names->name); 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return strlen(names->name); 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse the source unit recursively until it reaches to a terminal 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or a branched unit. 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 64586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 64709414207d4daab8c4990bface3a79fdba3474becDaniel Mack int err; 64823caaf19b11eda7054348452e1618d4512a86907Daniel Mack void *p1; 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(term, 0, sizeof(*term)); 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((p1 = find_audio_control_unit(state, id)) != NULL) { 65223caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned char *hdr = p1; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 65423caaf19b11eda7054348452e1618d4512a86907Daniel Mack switch (hdr[2]) { 655de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 65623caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 65723caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_input_terminal_descriptor *d = p1; 65823caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = le16_to_cpu(d->wTerminalType); 65923caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = d->bNrChannels; 66023caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 66123caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = d->iTerminal; 66223caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 66323caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_input_terminal_descriptor *d = p1; 66423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = le16_to_cpu(d->wTerminalType); 66523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = d->bNrChannels; 66623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 66723caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = d->iTerminal; 66809414207d4daab8c4990bface3a79fdba3474becDaniel Mack 66909414207d4daab8c4990bface3a79fdba3474becDaniel Mack /* call recursively to get the clock selectors */ 67009414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = check_input_term(state, d->bCSourceID, term); 67109414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (err < 0) 67209414207d4daab8c4990bface3a79fdba3474becDaniel Mack return err; 67323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 67523caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_FEATURE_UNIT: { 67623caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* the header is the same for v1 and v2 */ 67723caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_feature_unit_descriptor *d = p1; 6785e688883563ef62bd3725922f1a795a8253df499Daniel Mack id = d->bSourceID; 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 68023caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 68123caaf19b11eda7054348452e1618d4512a86907Daniel Mack case UAC_MIXER_UNIT: { 68223caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_mixer_unit_descriptor *d = p1; 68323caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 68423caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 68523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); 68623caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_mixer_unit_iMixer(d); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 68823caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 68909414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC_SELECTOR_UNIT: 69009414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SELECTOR: { 69123caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_selector_unit_descriptor *d = p1; 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* call recursively to retrieve the channel info */ 69323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_input_term(state, d->baSourceID[0], term) < 0) 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 69523caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 69723caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_selector_unit_iSelector(d); 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 69923caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 70069da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_PROCESSING_UNIT: 70169da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_EXTENSION_UNIT: { 70223caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_processing_unit_descriptor *d = p1; 70323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (d->bNrInPins) { 70423caaf19b11eda7054348452e1618d4512a86907Daniel Mack id = d->baSourceID[0]; 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 70723caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 70823caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->channels = uac_processing_unit_bNrChannels(d); 70923caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); 71023caaf19b11eda7054348452e1618d4512a86907Daniel Mack term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 71223caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 71309414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SOURCE: { 71409414207d4daab8c4990bface3a79fdba3474becDaniel Mack struct uac_clock_source_descriptor *d = p1; 71509414207d4daab8c4990bface3a79fdba3474becDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 71609414207d4daab8c4990bface3a79fdba3474becDaniel Mack term->id = id; 71709414207d4daab8c4990bface3a79fdba3474becDaniel Mack term->name = d->iClockSource; 71809414207d4daab8c4990bface3a79fdba3474becDaniel Mack return 0; 71909414207d4daab8c4990bface3a79fdba3474becDaniel Mack } 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Feature Unit 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* feature unit control information */ 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_feature_control_info { 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int type; /* control type (mute, volume, etc.) */ 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_feature_control_info audio_feature_info[] = { 7392e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Mute", USB_MIXER_INV_BOOLEAN }, 7402e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Volume", USB_MIXER_S16 }, 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Bass", USB_MIXER_S8 }, 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Mid", USB_MIXER_S8 }, 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Treble", USB_MIXER_S8 }, 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ 7452e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Auto Gain Control", USB_MIXER_BOOLEAN }, 7462e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Delay Control", USB_MIXER_U16 }, 7472e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Bass Boost", USB_MIXER_BOOLEAN }, 7482e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Loudness", USB_MIXER_BOOLEAN }, 7492e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack /* UAC2 specific */ 7502e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Input Gain Control", USB_MIXER_U16 }, 7512e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, 7522e0281d15c220d0a81c45c73872aa08d2f3ae3efDaniel Mack { "Phase Inverter Control", USB_MIXER_BOOLEAN }, 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private_free callback */ 75786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_elem_free(struct snd_kcontrol *kctl) 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7594d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kfree(kctl->private_data); 7604d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kctl->private_data = NULL; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * interface to ALSA control for feature/mixer units 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve the minimum and maximum values for the specified control 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 77186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_min_max(struct usb_mixer_elem_info *cval, int default_min) 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* for failsafe */ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = default_min; 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->max = cval->min + 1; 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 777c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = cval->dBmax = 0; 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int minchn = 0; 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_CHANNELS; i++) 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask & (1 << i)) { 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds minchn = i + 1; 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 792de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 793de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 79484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", 7951a4e34e67c6de2385d9d493e69c0f6fce886b14dTakashi Iwai cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 798de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int last_valid_res = cval->res; 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (cval->res > 1) { 8047b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 8057b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack (cval->control << 8) | minchn, cval->res / 2) < 0) 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res /= 2; 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 809de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = last_valid_res; 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->res == 0) 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 81414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 81514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai /* Additional checks for the proper resolution 81614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * 81714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * Some devices report smaller resolutions than actually 81814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * reacting. They don't return errors but simply clip 81914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * to the lower aligned value. 82014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai */ 82114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (cval->min + cval->res < cval->max) { 82214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int last_valid_res = cval->res; 82314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int saved, test, check; 824641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &saved); 82514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai for (;;) { 82614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test = saved; 82714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->max) 82814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test += cval->res; 82914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else 83014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test -= cval->res; 83114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->min || test > cval->max || 832641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, test) || 833641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &check)) { 83414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res = last_valid_res; 83514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 83614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 83714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test == check) 83814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 83914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res *= 2; 84014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 841641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, saved); 84214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 84314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 846c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 847c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* USB descriptions contain the dB scale in 1/256 dB unit 848c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela * while ALSA TLV contains in 1/100 dB unit 849c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela */ 850c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 851c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 852c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 853c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* something is wrong; assume it's either from/to 0dB */ 854c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin < 0) 855c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = 0; 856c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela else if (cval->dBmin > 0) 857c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = 0; 858c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 859c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* totally crap, return an error */ 860c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return -EINVAL; 861c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 862c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 863c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get a feature/mixer unit info */ 86986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 87186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = cval->channels; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.max = 1; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->initialized) 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 88714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai uinfo->value.integer.max = 88814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai (cval->max - cval->min + cval->res - 1) / cval->res; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get the current value from feature/mixer unit */ 89486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 89686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, err; 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 899641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[0] = cval->min; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 903641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 904641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 905641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &val); 906641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 907641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 908641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_relative_value(cval, val); 909641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[cnt] = val; 910641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 912641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 915641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &val); 916641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 917641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put the current value to feature/mixer unit */ 92586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 92786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, oval, err; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int changed = 0; 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 934641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 935641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 936641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &oval); 937641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 938641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 939641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = ucontrol->value.integer.value[cnt]; 940641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_abs_value(cval, val); 941641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (oval != val) { 942641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, c + 1, cnt, val); 943641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai changed = 1; 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 945641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 949641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &oval); 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 951641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 955641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, 0, 0, val); 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds changed = 1; 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return changed; 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 96286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new usb_feature_unit_ctl = { 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later manually */ 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_feature_get, 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_feature_put, 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 97023caaf19b11eda7054348452e1618d4512a86907Daniel Mack/* the read-only variant */ 97123caaf19b11eda7054348452e1618d4512a86907Daniel Mackstatic struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 97223caaf19b11eda7054348452e1618d4512a86907Daniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 97323caaf19b11eda7054348452e1618d4512a86907Daniel Mack .name = "", /* will be filled later manually */ 97423caaf19b11eda7054348452e1618d4512a86907Daniel Mack .info = mixer_ctl_feature_info, 97523caaf19b11eda7054348452e1618d4512a86907Daniel Mack .get = mixer_ctl_feature_get, 97623caaf19b11eda7054348452e1618d4512a86907Daniel Mack .put = NULL, 97723caaf19b11eda7054348452e1618d4512a86907Daniel Mack}; 97823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 9799e38658f703732cb69936553cef4bdb4e5294f3fDaniel Mack/* This symbol is exported in order to allow the mixer quirks to 9809e38658f703732cb69936553cef4bdb4e5294f3fDaniel Mack * hook up to the standard feature unit control mechanism */ 9819e38658f703732cb69936553cef4bdb4e5294f3fDaniel Mackstruct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a feature control 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 98708d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwaistatic size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 98808d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai{ 98908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 99008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai} 99108d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai 99299fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic void build_feature_ctl(struct mixer_build *state, void *raw_desc, 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int ctl_mask, int control, 99423caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct usb_audio_term *iterm, int unitid, 995a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack int readonly_mask) 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 99799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int len = 0; 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mapped_name = 0; 100099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack int nameid = uac_feature_unit_iFeature(desc); 100186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 100286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 1003c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 100480acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher unsigned int range; 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control++; /* change from zero-based to 1-based value */ 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: not supported yet */ 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1013c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, control); 1014c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1017561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 102284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = control; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask = ctl_mask; 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = audio_feature_info[control-1].type; 1027a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (ctl_mask == 0) { 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; /* master channel */ 1029a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->master_readonly = readonly_mask; 1030a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack } else { 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, c = 0; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 16; i++) 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ctl_mask & (1 << i)) 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c++; 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = c; 1036a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack cval->ch_readonly = readonly_mask; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1042a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack /* if all channels in the mask are marked read-only, make the control 1043a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * read-only. set_cur_mix_value() will check the mask again and won't 1044a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * issue write commands to read-only channels. */ 1045a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack if (cval->channels == readonly_mask) 104623caaf19b11eda7054348452e1618d4512a86907Daniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 104723caaf19b11eda7054348452e1618d4512a86907Daniel Mack else 104823caaf19b11eda7054348452e1618d4512a86907Daniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 104923caaf19b11eda7054348452e1618d4512a86907Daniel Mack 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1057c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mapped_name = len != 0; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len && nameid) 1060c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = snd_usb_copy_string_desc(state, nameid, 1061c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela kctl->id.name, sizeof(kctl->id.name)); 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (control) { 106465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack case UAC_FU_MUTE: 106565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack case UAC_FU_VOLUME: 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the control name. the rule is: 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if a name id is given in descriptor, use it. 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected input can be determined, then use the name 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of terminal type. 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected output can be determined, use it. 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - otherwise, anonymous name. 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) { 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snprintf(kctl->id.name, sizeof(kctl->id.name), 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Feature %d", unitid); 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the stream direction: 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the connected output is USB stream, then it's likely a 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * capture stream. otherwise it should be playback (hopefully :) 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! mapped_name && ! (state->oterm.type >> 16)) { 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((state->oterm.type & 0xff00) == 0x0100) { 108708d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Capture"); 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 108908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Playback"); 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 109265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 109308d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai " Switch" : " Volume"); 109465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (control == UAC_FU_VOLUME) { 1095c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela check_mapped_dB(map, cval); 10965e5c860400ef1307e3d87aebd5ec8a35b078ca51Takashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 109759bb7f0eebe69aa32a5c7917a23a7da1c5667d73Takashi Iwai kctl->tlv.c = mixer_vol_tlv; 109859bb7f0eebe69aa32a5c7917a23a7da1c5667d73Takashi Iwai kctl->vd[0].access |= 109959bb7f0eebe69aa32a5c7917a23a7da1c5667d73Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_READ | 110059bb7f0eebe69aa32a5c7917a23a7da1c5667d73Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 110159bb7f0eebe69aa32a5c7917a23a7da1c5667d73Takashi Iwai } 11027bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai } 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, audio_feature_info[control-1].name, 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(kctl->id.name)); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11122cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* volume control quirks */ 111327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch switch (state->chip->usb_id) { 111427d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0101): 111527d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0104): 111627d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0105): 111727d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0672, 0x1041): 11182cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* quirk for UDA1321/N101. 11192cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * note that detection between firmware 2.1.1.7 (N101) 11202cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * and later 2.1.1.21 is not very clear from datasheets. 11212cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * I hope that the min value is -15360 for newer firmware --jk 11222cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher */ 112327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (!strcmp(kctl->id.name, "PCM Playback Volume") && 112427d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->min == -15616) { 11252cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 11262cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for UDA1321/N101 chip\n"); 112727d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->max = -256; 112827d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch } 11292cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 11302cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 11312cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher case USB_ID(0x046d, 0x09a4): 11322cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 11332cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 11342cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for QuickCam E3500\n"); 11352cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->min = 6080; 11362cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->max = 8768; 11372cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->res = 192; 11382cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher } 11392cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 11402cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 1141bc3a8a01def4fb0ec0ef8a20d097277b9c6b2a1fAlexey Fisher case USB_ID(0x046d, 0x0808): 1142a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher case USB_ID(0x046d, 0x0809): 1143a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher case USB_ID(0x046d, 0x0991): 1144a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher /* Most audio usb devices lie about volume resolution. 1145a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher * Most Logitech webcams have res = 384. 1146a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher * Proboly there is some logitech magic behind this number --fishor 1147a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher */ 1148a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 1149a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher snd_printk(KERN_INFO 1150a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher "set resolution quirk: cval->res = 384\n"); 1151a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher cval->res = 384; 1152a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher } 1153a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher break; 1154a5c7d797dcce3be5e77cd6ea62cc4920ededc32bAlexey Fisher 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 115780acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher range = (cval->max - cval->min) / cval->res; 115880acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher /* Are there devices with volume range more than 255? I use a bit more 115980acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 116080acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher * devices. It will definitively catch all buggy Logitech devices. 116180acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher */ 116280acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher if (range > 384) { 116380acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big " 116480acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher "volume range (=%u), cval->res is probably wrong.", 116580acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher range); 116680acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, " 116780acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher "val = %d/%d/%d", cval->id, 116880acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher kctl->id.name, cval->channels, 116980acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher cval->min, cval->max, cval->res); 117080acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher } 117180acefff3bc7bd53d46c16c683ab66c0ece20810Alexey Fisher 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); 1174ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack snd_usb_mixer_add_control(state->mixer, kctl); 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a feature unit 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 118225985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * most of controls are defined here. 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 118428e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mackstatic int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels, i, j; 118786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int master_bits, first_ch_bits; 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, csize; 119023caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 119123caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *bmaControls; 119223caaf19b11eda7054348452e1618d4512a86907Daniel Mack 119323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 119423caaf19b11eda7054348452e1618d4512a86907Daniel Mack csize = hdr->bControlSize; 1195e565b49adb0dc11ac644e4af63936012c6ab2f43Nicolai Krakowiak if (!csize) { 1196e565b49adb0dc11ac644e4af63936012c6ab2f43Nicolai Krakowiak snd_printdd(KERN_ERR "usbaudio: unit %u: " 1197e565b49adb0dc11ac644e4af63936012c6ab2f43Nicolai Krakowiak "invalid bControlSize == 0\n", unitid); 1198e565b49adb0dc11ac644e4af63936012c6ab2f43Nicolai Krakowiak return -EINVAL; 1199e565b49adb0dc11ac644e4af63936012c6ab2f43Nicolai Krakowiak } 120023caaf19b11eda7054348452e1618d4512a86907Daniel Mack channels = (hdr->bLength - 7) / csize - 1; 120123caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls = hdr->bmaControls; 120223caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { 120323caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 120423caaf19b11eda7054348452e1618d4512a86907Daniel Mack csize = 4; 1205e8d0fee70b66694959eab10c41788b9279d73629Daniel Mack channels = (hdr->bLength - 6) / 4 - 1; 120623caaf19b11eda7054348452e1618d4512a86907Daniel Mack bmaControls = ftr->bmaControls; 120723caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { 1210de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* parse the source unit */ 121523caaf19b11eda7054348452e1618d4512a86907Daniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the input source type and name */ 121923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_input_term(state, hdr->bSourceID, &iterm) < 0) 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 122223caaf19b11eda7054348452e1618d4512a86907Daniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 12230c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* master configuration quirks */ 12240c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen switch (state->chip->usb_id) { 12250c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen case USB_ID(0x08bb, 0x2702): 12260c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen snd_printk(KERN_INFO 12270c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen "usbmixer: master volume quirk for PCM2702 chip\n"); 12280c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* disable non-functional volume control */ 122965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 12300c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen break; 12310c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen } 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (channels > 0) 123323caaf19b11eda7054348452e1618d4512a86907Daniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first_ch_bits = 0; 123623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 123723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 123823caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* check all control types */ 123923caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (i = 0; i < 10; i++) { 124023caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_bits = 0; 124123caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (j = 0; j < channels; j++) { 124223caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 124323caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (mask & (1 << i)) 124423caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_bits |= (1 << j); 124523caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 124623caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* audio class v1 controls are never read-only */ 124723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 124823caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); 124923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (master_bits & (1 << i)) 125023caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); 125123caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 125223caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 125323caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (i = 0; i < 30/2; i++) { 125423caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_bits = 0; 125523caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int ch_read_only = 0; 125623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 125723caaf19b11eda7054348452e1618d4512a86907Daniel Mack for (j = 0; j < channels; j++) { 125823caaf19b11eda7054348452e1618d4512a86907Daniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1259dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (uac2_control_is_readable(mask, i)) { 126023caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_bits |= (1 << j); 1261dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (!uac2_control_is_writeable(mask, i)) 126223caaf19b11eda7054348452e1618d4512a86907Daniel Mack ch_read_only |= (1 << j); 126323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 126423caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 126523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 1266a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack /* NOTE: build_feature_ctl() will mark the control read-only if all channels 1267a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * are marked read-only in the descriptors. Otherwise, the control will be 1268a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * reported as writeable, but the driver will not actually issue a write 1269a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack * command for read-only channels */ 127023caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 1271a6a3325913efbe35a10e87fd3e9c3ce621fd32c7Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); 1272dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack if (uac2_control_is_readable(master_bits, i)) 127323caaf19b11eda7054348452e1618d4512a86907Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 1274dcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fcDaniel Mack !uac2_control_is_writeable(master_bits, i)); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer Unit 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a mixer unit control 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the callbacks are identical with feature unit. 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * input channel number (zero based) is given in control field instead. 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 129399fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic void build_mixer_unit_ctl(struct mixer_build *state, 129499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_mixer_unit_descriptor *desc, 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int in_pin, int in_ch, int unitid, 129686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term *iterm) 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 129886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 129999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, len; 130186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1302c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1304c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1305c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1308561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = in_ch + 1; /* based on 1 */ 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_S16; 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_outs; i++) { 131723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask |= (1 << i); 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels++; 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1334c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 133908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Volume"); 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 1343ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack snd_usb_mixer_add_control(state->mixer, kctl); 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a mixer unit 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 135099fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 135299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 135386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int input_pins, num_ins, num_outs; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pin, ich, err; 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 135799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* no bmControls field (e.g. Maya44) -> ignore */ 136299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bLength <= 10 + input_pins) { 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = 0; 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich = 0; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pin = 0; pin < input_pins; pin++) { 137099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 137399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins += iterm.channels; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (; ich < num_ins; ++ich) { 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int och, ich_has_controls = 0; 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (och = 0; och < num_outs; ++och) { 138123caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich, och, num_outs)) { 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich_has_controls = 1; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ich_has_controls) 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds build_mixer_unit_ctl(state, desc, pin, ich, 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unitid, &iterm); 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Processing Unit / Extension Unit 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for processing/extension unit */ 140186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 140386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, val; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &val); 140784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (err < 0 && cval->mixer->ignore_ctl_error) { 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = cval->min; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for processing/extension unit */ 141986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 142186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &oval); 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 142684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_cur_ctl_value(cval, cval->control << 8, val); 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for processing/extension unit */ 144086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_procunit_ctl = { 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_procunit_get, 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_procunit_put, 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * predefined data for processing units 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_value_info { 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int control; 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *suffix; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_type; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int min_value; 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_info { 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *values; 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info updown_proc_info[] = { 146665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 146765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info prologic_proc_info[] = { 147165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 147265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info threed_enh_proc_info[] = { 147665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 147765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info reverb_proc_info[] = { 148165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 148265f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 148365f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 148465f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info chorus_proc_info[] = { 148865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 148965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 149065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 149165f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info dcr_proc_info[] = { 149565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 149665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 149765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 149865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 149965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 150065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_info procunits[] = { 150565f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 150665f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 150765f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 150865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 150965f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 151065f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 15137d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/* 15147d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * predefined data for extension units 15157d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 15167d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_rate_xu_info[] = { 1517e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1518e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack { 0 } 15197d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 15207d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_source_xu_info[] = { 15217d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 15227d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 15237d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 15247d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info spdif_format_xu_info[] = { 15257d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 15267d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 15277d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 15287d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info soft_limit_xu_info[] = { 15297d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 15307d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 15317d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 15327d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_info extunits[] = { 15337d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 15347d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 15357d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 15367d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 15377d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 15387d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a processing/extension unit 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 154299fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 154499fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 154599fc86450c439039d2ef88d06b222fd51a779176Daniel Mack int num_ins = desc->bNrInPins; 154686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 154786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, err, nameid, type, len; 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_info *info; 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *valinfo; 1551c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_value_info default_value_info[] = { 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x01, "Switch", USB_MIXER_BOOLEAN }, 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_info default_info = { 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0, NULL, default_value_info 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 156023caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 156123caaf19b11eda7054348452e1618d4512a86907Daniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) { 156799fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 157199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack type = le16_to_cpu(desc->wProcessType); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (info = list; info && info->type; info++) 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->type == type) 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! info || ! info->type) 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info = &default_info; 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (valinfo = info->values; valinfo->control; valinfo++) { 157923caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 158099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack 158199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1583c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, valinfo->control); 1584c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1586561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 159184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = valinfo->control; 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = valinfo->val_type; 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 159865f25da44b51f55e3a74301c25f29263be2bf1baDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 159923caaf19b11eda7054348452e1618d4512a86907Daniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: hard-coded */ 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 160299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->max = control_spec[0]; 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 16057d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else { 16067d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk if (type == USB_XU_CLOCK_RATE) { 16071cdfa9f34acb9780e0fe7b8a41fb1a885ab94735Joseph Teichman /* E-Mu USB 0404/0202/TrackerPre/0204 16087d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * samplerate control quirk 16097d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 16107d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->min = 0; 16117d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->max = 5; 16127d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->res = 1; 16137d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->initialized = 1; 16147d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else 16157d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk get_min_max(cval, valinfo->min_value); 16167d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1626c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_mapped_name(map, kctl->id.name, 1627c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela sizeof(kctl->id.name))) 1628c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* nothing */ ; 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (info->name) 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 163223caaf19b11eda7054348452e1618d4512a86907Daniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nameid) 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 163908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " "); 164008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, valinfo->suffix); 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 1644ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 165199fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 165399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 165699fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 165899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack /* Note that we parse extension units with processing unit descriptors. 165999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack * That's ok as the layout is the same */ 166099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Selector Unit 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* info callback for selector unit 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use an enumerator type for routing 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 167186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 167386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16742a1803a7291e82823effef0b48b0039324d224c6Clemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16765e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai if (snd_BUG_ON(!itemlist)) 16775e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai return -EINVAL; 16782a1803a7291e82823effef0b48b0039324d224c6Clemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for selector unit */ 168286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 168486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, err; 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 168709414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 168984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) { 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = 0; 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = val; 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for selector unit */ 170186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 170386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170609414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 170884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.enumerated.item[0]; 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 171509414207d4daab8c4990bface3a79fdba3474becDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for selector unit */ 172286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_selectunit_ctl = { 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_selector_info, 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_selector_get, 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_selector_put, 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private free callback. 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free both private_data and private_value 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 173486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, num_ins = 0; 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_data) { 173986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = cval->max; 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_data = NULL; 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_value) { 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kctl->private_value; 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist[i]); 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist); 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = 0; 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a selector unit 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 175699fc86450c439039d2ef88d06b222fd51a779176Daniel Mackstatic int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 175899fc86450c439039d2ef88d06b222fd51a779176Daniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, nameid, len; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 176186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 176286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1763c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **namelist; 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 176699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 177199fc86450c439039d2ef88d06b222fd51a779176Daniel Mack for (i = 0; i < desc->bNrInPins; i++) { 177299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 177699fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1779c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1780c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1783561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 178884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_U8; 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 179399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->max = desc->bNrInPins; 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179709414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 179809414207d4daab8c4990bface3a79fdba3474becDaniel Mack cval->control = UAC2_CX_CLOCK_SELECTOR; 179909414207d4daab8c4990bface3a79fdba3474becDaniel Mack else 180009414207d4daab8c4990bface3a79fdba3474becDaniel Mack cval->control = 0; 180109414207d4daab8c4990bface3a79fdba3474becDaniel Mack 180299fc86450c439039d2ef88d06b222fd51a779176Daniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist) { 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_ITEM_NAME_LEN 64 180999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack for (i = 0; i < desc->bNrInPins; i++) { 181086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist[i]) { 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 18157fbe3ca571e4b0795b729658e3d76824be54cb18Mariusz Kozlowski while (i--) 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist[i]); 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist); 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18218e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch len = check_mapped_selector_name(state, unitid, i, namelist[i], 18228e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch MAX_ITEM_NAME_LEN); 182399fc86450c439039d2ef88d06b222fd51a779176Daniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sprintf(namelist[i], "Input %d", i); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1832878b4789196e3cd470f843854b6b09d963214659Jesper Juhl kfree(namelist); 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = (unsigned long)namelist; 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_selector_elem_free; 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 183999fc86450c439039d2ef88d06b222fd51a779176Daniel Mack nameid = uac_selector_unit_iSelector(desc); 1840c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len) 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (nameid) 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.name, sizeof(kctl->id.name), 0); 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 185109414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 185209414207d4daab8c4990bface3a79fdba3474becDaniel Mack append_ctl_name(kctl, " Clock Source"); 185309414207d4daab8c4990bface3a79fdba3474becDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 185408d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Capture Source"); 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 185608d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Playback Source"); 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", 186099fc86450c439039d2ef88d06b222fd51a779176Daniel Mack cval->id, kctl->id.name, desc->bNrInPins); 1861ef9d59708949b2012b1b723a1eaec82981c40013Daniel Mack if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse an audio unit recursively 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 187286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid) 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *p1; 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_and_set_bit(unitid, state->unitbitmap)) 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* the unit already visited */ 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p1 = find_audio_control_unit(state, unitid); 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p1) { 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (p1[2]) { 1886de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 188709414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SOURCE: 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* NOP */ 1889de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_mixer_unit(state, unitid, p1); 1891de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 189209414207d4daab8c4990bface3a79fdba3474becDaniel Mack case UAC2_CLOCK_SELECTOR: 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_selector_unit(state, unitid, p1); 1894de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_FEATURE_UNIT: 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_feature_unit(state, unitid, p1); 189669da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_PROCESSING_UNIT: 189723caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* UAC2_EFFECT_UNIT has the same value */ 189823caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) 189923caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_processing_unit(state, unitid, p1); 190023caaf19b11eda7054348452e1618d4512a86907Daniel Mack else 190123caaf19b11eda7054348452e1618d4512a86907Daniel Mack return 0; /* FIXME - effect units not implemented yet */ 190269da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack case UAC1_EXTENSION_UNIT: 190323caaf19b11eda7054348452e1618d4512a86907Daniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 190423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (state->mixer->protocol == UAC_VERSION_1) 190523caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_extension_unit(state, unitid, p1); 190623caaf19b11eda7054348452e1618d4512a86907Daniel Mack else /* UAC_VERSION_2 */ 190723caaf19b11eda7054348452e1618d4512a86907Daniel Mack return parse_audio_processing_unit(state, unitid, p1); 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 191484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 191584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 19166639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->id_elems); 19176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (mixer->urb) { 19186639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->urb->transfer_buffer); 19196639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_free_urb(mixer->urb); 19206639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 192168df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_free_urb(mixer->rc_urb); 1922b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch kfree(mixer->rc_setup_packet); 192384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch kfree(mixer); 192484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 192584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 192686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_mixer_dev_free(struct snd_device *device) 192784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 192884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer = device->device_data; 192984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_usb_mixer_free(mixer); 193084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 193184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 193284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * create mixer controls 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1936de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 193884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 194086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct mixer_build state; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_ctl_map *map; 194323caaf19b11eda7054348452e1618d4512a86907Daniel Mack void *p; 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&state, 0, sizeof(state)); 194684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.chip = mixer->chip; 194784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.mixer = mixer; 19483ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack state.buffer = mixer->hostif->extra; 19493ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack state.buflen = mixer->hostif->extralen; 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check the mapping table */ 195227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch for (map = usbmix_ctl_maps; map->id; map++) { 195327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (map->id == state.chip->usb_id) { 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.map = map->map; 19558e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch state.selector_map = map->selector_map; 195684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->ignore_ctl_error = map->ignore_ctl_error; 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 196123caaf19b11eda7054348452e1618d4512a86907Daniel Mack p = NULL; 19623ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, 19633ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 196423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (mixer->protocol == UAC_VERSION_1) { 196569da9bcb98ccbfb5d5f751bc13418f1307332925Daniel Mack struct uac1_output_terminal_descriptor *desc = p; 196623caaf19b11eda7054348452e1618d4512a86907Daniel Mack 196723caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < sizeof(*desc)) 196823caaf19b11eda7054348452e1618d4512a86907Daniel Mack continue; /* invalid descriptor? */ 196923caaf19b11eda7054348452e1618d4512a86907Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 197023caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.id = desc->bTerminalID; 197123caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 197223caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.name = desc->iTerminal; 197323caaf19b11eda7054348452e1618d4512a86907Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 197423caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (err < 0) 197523caaf19b11eda7054348452e1618d4512a86907Daniel Mack return err; 197623caaf19b11eda7054348452e1618d4512a86907Daniel Mack } else { /* UAC_VERSION_2 */ 197723caaf19b11eda7054348452e1618d4512a86907Daniel Mack struct uac2_output_terminal_descriptor *desc = p; 197823caaf19b11eda7054348452e1618d4512a86907Daniel Mack 197923caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (desc->bLength < sizeof(*desc)) 198023caaf19b11eda7054348452e1618d4512a86907Daniel Mack continue; /* invalid descriptor? */ 198123caaf19b11eda7054348452e1618d4512a86907Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 198223caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.id = desc->bTerminalID; 198323caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 198423caaf19b11eda7054348452e1618d4512a86907Daniel Mack state.oterm.name = desc->iTerminal; 198523caaf19b11eda7054348452e1618d4512a86907Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 198623caaf19b11eda7054348452e1618d4512a86907Daniel Mack if (err < 0) 198723caaf19b11eda7054348452e1618d4512a86907Daniel Mack return err; 198809414207d4daab8c4990bface3a79fdba3474becDaniel Mack 198909414207d4daab8c4990bface3a79fdba3474becDaniel Mack /* for UAC2, use the same approach to also add the clock selectors */ 199009414207d4daab8c4990bface3a79fdba3474becDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 199109414207d4daab8c4990bface3a79fdba3474becDaniel Mack if (err < 0) 199209414207d4daab8c4990bface3a79fdba3474becDaniel Mack return err; 199323caaf19b11eda7054348452e1618d4512a86907Daniel Mack } 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 199523caaf19b11eda7054348452e1618d4512a86907Daniel Mack 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 199884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 19997b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackvoid snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 20006639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 200186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *info; 20026639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 20036639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) 20046639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 20056639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch info->elem_id); 20066639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 20076639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2008ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 2009ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid, 2010ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval) 2011ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 2012ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 2013ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "S8", "U8", "S16", "U16"}; 2014ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Unit: %i\n", unitid); 2015ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (cval->elem_id) 2016ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", 2017ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->elem_id->name, cval->elem_id->index); 2018ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 2019ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "channels=%i, type=\"%s\"\n", cval->id, 2020ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->control, cval->cmask, cval->channels, 2021ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela val_types[cval->val_type]); 2022ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 2023ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->min, cval->max, cval->dBmin, cval->dBmax); 2024ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 2025ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2026ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 2027ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_buffer *buffer) 2028ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 2029ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_usb_audio *chip = entry->private_data; 2030ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_interface *mixer; 2031ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval; 2032ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid; 2033ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2034ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela list_for_each_entry(mixer, &chip->mixer_list, list) { 2035ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, 20367affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 20373d8d4dcfd423b01ef7ea7c3c97720764b7adb6dfDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 20387affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela mixer->ignore_ctl_error); 2039ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 2040ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 2041ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (cval = mixer->id_elems[unitid]; cval; 2042ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval = cval->next_id_elem) 2043ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_usb_mixer_dump_cval(buffer, unitid, cval); 2044ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 2045ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 2046ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 2047ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2048e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackstatic void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 2049e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack int attribute, int value, int index) 2050e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack{ 2051e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct usb_mixer_elem_info *info; 2052e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 unitid = (index >> 8) & 0xff; 2053e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 control = (value >> 8) & 0xff; 2054e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __u8 channel = value & 0xff; 2055e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2056e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (channel >= MAX_CHANNELS) { 2057e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", 2058e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack __func__, channel); 2059e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack return; 2060e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2061e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2062e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { 2063e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (info->control != control) 2064e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack continue; 2065e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2066e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack switch (attribute) { 2067e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_CUR: 2068e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* invalidate cache, so the value is read from the device */ 2069e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (channel) 2070e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->cached &= ~(1 << channel); 2071e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack else /* master channel */ 2072e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->cached = 0; 2073e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2074e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 2075e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack info->elem_id); 2076e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2077e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2078e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_RANGE: 2079e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* TODO */ 2080e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2081e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2082e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack case UAC2_CS_MEM: 2083e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* TODO */ 2084e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2085e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2086e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack default: 2087e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", 2088e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack attribute); 2089e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack break; 2090e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } /* switch */ 2091e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2092e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack} 2093e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2094e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackstatic void snd_usb_mixer_interrupt(struct urb *urb) 20956639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 20966639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer = urb->context; 2097e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack int len = urb->actual_length; 2098edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum int ustatus = urb->status; 2099e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2100edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum if (ustatus != 0) 2101e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack goto requeue; 21026639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2103e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2104e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct uac1_status_word *status; 21056639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2106e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (status = urb->transfer_buffer; 2107e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len >= sizeof(*status); 2108e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len -= sizeof(*status), status++) { 21096639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", 2110e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack status->bStatusType, 2111e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack status->bOriginator); 2112e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 21136639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* ignore any notifications not from the control interface */ 2114e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2115e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 21166639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch continue; 2117e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2118e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2119e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2120b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch else 2121e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2122e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } 2123e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack } else { /* UAC_VERSION_2 */ 2124e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack struct uac2_interrupt_data_msg *msg; 2125e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2126e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack for (msg = urb->transfer_buffer; 2127e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len >= sizeof(*msg); 2128e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack len -= sizeof(*msg), msg++) { 2129e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack /* drop vendor specific and endpoint requests */ 2130e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2131e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2132e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack continue; 2133e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2134e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2135e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack le16_to_cpu(msg->wValue), 2136e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack le16_to_cpu(msg->wIndex)); 21376639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 21386639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 2139e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack 2140e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mackrequeue: 2141edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { 21426639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch urb->dev = mixer->chip->dev; 21436639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(urb, GFP_ATOMIC); 21446639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 21456639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 21466639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 2147edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum/* stop any bus activity of a mixer */ 2148edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukumvoid snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 2149edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum{ 2150edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum usb_kill_urb(mixer->urb); 2151edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum usb_kill_urb(mixer->rc_urb); 2152edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum} 2153edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum 2154edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukumint snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 2155edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum{ 2156edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum int err; 2157edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum 2158edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum if (mixer->urb) { 2159edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum err = usb_submit_urb(mixer->urb, GFP_NOIO); 2160edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum if (err < 0) 2161edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum return err; 2162edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum } 2163edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum 2164edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum return 0; 2165edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum} 2166edf7de31c25ce72f163bf7d1fc0d2711869d073cOliver Neukum 21676639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch/* create the handler for the optional status interrupt endpoint */ 21686639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladischstatic int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 21696639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 21706639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_endpoint_descriptor *ep; 21716639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch void *transfer_buffer; 21726639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch int buffer_length; 21736639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch unsigned int epnum; 21746639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 21756639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* we need one interrupt input endpoint */ 21763ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 21776639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 21783ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack ep = get_endpoint(mixer->hostif, 0); 2179913ae5a24efd27deef4fc154953871b62d0d99cdJulia Lawall if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 21806639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 21816639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 218242a6e66f1e40a930d093c33ba0bb9d8d8e4555edJulia Lawall epnum = usb_endpoint_num(ep); 21836639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch buffer_length = le16_to_cpu(ep->wMaxPacketSize); 21846639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 21856639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!transfer_buffer) 21866639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 21876639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 21886639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->urb) { 21896639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(transfer_buffer); 21906639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 21916639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 21926639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_fill_int_urb(mixer->urb, mixer->chip->dev, 21936639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_rcvintpipe(mixer->chip->dev, epnum), 21946639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer, buffer_length, 2195e213e9cf707c51808e372dabd1070a61af17e77bDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 21966639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(mixer->urb, GFP_KERNEL); 21976639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 21986639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 21996639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 22007a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwaiint snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 22017a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai int ignore_error) 220284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 220386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai static struct snd_device_ops dev_ops = { 220484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch .dev_free = snd_usb_mixer_dev_free 220584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch }; 220684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 2207ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_entry *entry; 220823caaf19b11eda7054348452e1618d4512a86907Daniel Mack int err; 220984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 221084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch strcpy(chip->card->mixername, "USB Mixer"); 221184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 2212561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 221384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (!mixer) 221484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return -ENOMEM; 221584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->chip = chip; 22167a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai mixer->ignore_ctl_error = ignore_error; 2217291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2218291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela GFP_KERNEL); 22196639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->id_elems) { 22206639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer); 22216639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 22226639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 222384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 22243ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 22253ddef47156a5b3a005c1536b8d64ea6edff133aaDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 2226a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch case UAC_VERSION_1: 2227a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch default: 2228a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch mixer->protocol = UAC_VERSION_1; 2229a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch break; 2230a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch case UAC_VERSION_2: 2231a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch mixer->protocol = UAC_VERSION_2; 2232a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch break; 2233a2acad8298a42b7be684a32fafaf83332bba9c2bClemens Ladisch } 22347b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack 22356639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if ((err = snd_usb_mixer_controls(mixer)) < 0 || 223693446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch (err = snd_usb_mixer_status_create(mixer)) < 0) 223793446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 223884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 22397b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2240468b8fde24d49f5b34e9152981824b9d4ecd1a2eClemens Ladisch 224184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); 224293446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch if (err < 0) 224393446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 2244ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 2245ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (list_empty(&chip->mixer_list) && 2246ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2247ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2248ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 224984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch list_add(&mixer->list, &chip->mixer_list); 225084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 225193446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch 225293446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch_error: 225393446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch snd_usb_mixer_free(mixer); 225493446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch return err; 225584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 225684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 225784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischvoid snd_usb_mixer_disconnect(struct list_head *p) 225884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 22596639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer; 22607b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack 22616639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer = list_entry(p, struct usb_mixer_interface, list); 226268df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->urb); 226368df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->rc_urb); 226484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 2265