mixer.c revision 7b1eda223debcba706ab989a09c4eecb327aebdf
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (Tentative) USB Audio Driver for ALSA 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer control part 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Many codes borrowed from audio.c by 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alan Cox (alan@lxorguk.ukuu.org.uk) 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Thomas Sailer (sailer@ife.ee.ethz.ch) 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/list.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/usb.h> 3528e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack#include <linux/usb/audio.h> 3628e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/core.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <sound/control.h> 39b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch#include <sound/hwdep.h> 40aafad5629a949d0ad41180f8a746b6cd7654e317Clemens Ladisch#include <sound/info.h> 417bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai#include <sound/tlv.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "usbaudio.h" 443e1aebef6fb55e35668d2d7cf608cf03f30c904fDaniel Mack#include "usbmixer.h" 45e5779998bf8b70e48a6cc208c8b61b33bd6117eaDaniel Mack#include "helper.h" 467b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack#include "mixer_quirks.h" 474d1a70dad0e1c44dc0725de6de25aceead48599eRaimonds Cicans 48ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela#define MAX_ID_ELEMS 256 49ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_audio_term { 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int id; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels; 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int chconfig; 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int name; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usbmix_name_map; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistruct mixer_build { 6186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_usb_audio *chip; 6284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *buffer; 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int buflen; 65291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 6686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term oterm; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_name_map *map; 688e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *selector_map; 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_BOOLEAN, 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_INV_BOOLEAN, 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_S8, 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_U8, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_S16, 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_MIXER_U16, 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_UPDOWN = 1, 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_UPDOWN_SWITCH = 1, 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_UPDOWN_MODE_SEL = 2, 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_PROLOGIC = 2, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_PROLOGIC_SWITCH = 1, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_PROLOGIC_MODE_SEL = 2, 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_3DENH = 3, 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_3DENH_SWITCH = 1, 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_3DENH_SPACE = 2, 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_REVERB = 4, 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_REVERB_SWITCH = 1, 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_REVERB_LEVEL = 2, 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_REVERB_TIME = 3, 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_REVERB_DELAY = 4, 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_CHORUS = 5, 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_CHORUS_SWITCH = 1, 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_CHORUS_LEVEL = 2, 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_CHORUS_RATE = 3, 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_CHORUS_DEPTH = 4, 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR = 6, 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR_SWITCH = 1, 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR_RATIO = 2, 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR_MAX_AMP = 3, 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR_THRESHOLD = 4, 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR_ATTACK = 5, 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_PROC_DCR_RELEASE = 6, 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1147d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/*E-mu 0202(0404) eXtension Unit(XU) control*/ 1157d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 1167d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE = 0xe301, 1177d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE = 0xe302, 1187d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_IO_STATUS = 0xe303, 1197d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DEVICE_OPTIONS = 0xe304, 1207d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIRECT_MONITORING = 0xe305, 1217d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_METERING = 0xe306 1227d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 1237d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukenum { 1247d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 1257d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 1267d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 1277d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 1287d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * manual mapping of mixer names 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the mixer topology is too complicated and the parsed names are 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ambiguous, add the entries in usbmixer_maps.c. 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "usbmixer_maps.c" 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic const struct usbmix_name_map * 138c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselafind_map(struct mixer_build *state, int unitid, int control) 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 140c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *p = state->map; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 142c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p) 143c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (p = state->map; p->id; p++) { 146c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p->id == unitid && 147c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela (!control || !p->control || control == p->control)) 148c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return p; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 150c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return NULL; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 153c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* get the mapped name if the unit matches */ 154c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic int 155c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || !p->name) 158c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 0; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 160c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela buflen--; 161c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return strlcpy(buf, p->name, buflen); 162c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 163c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 164c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* check whether the control should be ignored */ 165c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline int 166c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselacheck_ignored_ctl(const struct usbmix_name_map *p) 167c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 168c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (!p || p->name || p->dB) 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 170c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return 1; 171c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela} 172c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 173c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela/* dB mapping */ 174c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kyselastatic inline void check_mapped_dB(const struct usbmix_name_map *p, 175c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela struct usb_mixer_elem_info *cval) 176c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela{ 177c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (p && p->dB) { 178c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = p->dB->min; 179c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = p->dB->max; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1838e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch/* get the mapped selector source name */ 18486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_mapped_selector_name(struct mixer_build *state, int unitid, 1858e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch int index, char *buf, int buflen) 1868e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch{ 1878e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch const struct usbmix_selector_map *p; 1888e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1898e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (! state->selector_map) 1908e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1918e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch for (p = state->selector_map; p->id; p++) { 1928e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (p->id == unitid && index < p->count) 1938e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return strlcpy(buf, p->names[index], buflen); 1948e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch } 1958e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch return 0; 1968e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch} 1978e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * find an audio control unit with the given unit id 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *p; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = NULL; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((p = snd_usb_find_desc(state->buffer, state->buflen, p, 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_DT_CS_INTERFACE)) != NULL) { 208de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (p[0] >= 4 && p[2] >= UAC_INPUT_TERMINAL && p[2] <= UAC_EXTENSION_UNIT_V1 && p[3] == unit) 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return p; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copy a string with the given id 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[len] = 0; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the byte/word on usb descriptor to the zero-based integer 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xff; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x80) 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x100; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0xffff; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val >= 0x8000) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val -= 0x10000; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * convert from the zero-based int to the byte/word for usb descriptor 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 25886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cval->val_type) { 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_BOOLEAN: 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !!val; 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_INV_BOOLEAN: 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !val; 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S8: 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U8: 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xff; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_S16: 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case USB_MIXER_U16: 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val & 0xffff; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* not reached */ 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_relative_value(struct usb_mixer_elem_info *cval, int val) 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < cval->min) 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 28114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else if (val >= cval->max) 28214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai return (cval->max - cval->min + cval->res - 1) / cval->res; 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val - cval->min) / cval->res; 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_abs_value(struct usb_mixer_elem_info *cval, int val) 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < 0) 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->min; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->res) 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val *= cval->res; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val += cval->min; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val > cval->max) 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cval->max; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve a mixer value 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timeout = 10; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (timeout-- > 0) { 31284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (snd_usb_ctl_msg(cval->mixer->chip->dev, 31384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch usb_rcvctrlpipe(cval->mixer->chip->dev, 0), 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds request, 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 31684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch validx, cval->mixer->ctrlif | (cval->id << 8), 317a04395ead6d17c83da64264b6fe78f852a648202Thomas Reitmayr buf, val_len, 100) >= val_len) { 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 32284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 32384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type); 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 32786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 329de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* channel = 0: master, 1 = first channel */ 333641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 334641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int *value) 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 336de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 339641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int get_cur_mix_value(struct usb_mixer_elem_info *cval, 340641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int channel, int index, int *value) 341641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai{ 342641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 343641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 344641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (cval->cached & (1 << channel)) { 345641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai *value = cval->cache_val[index]; 346641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 347641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 348641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_raw(cval, channel, value); 349641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) { 350641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!cval->mixer->ignore_ctl_error) 351641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai snd_printd(KERN_ERR "cannot get current value for " 352641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai "control %d ch %d: err = %d\n", 353641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->control, channel, err); 354641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 355641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai } 356641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 357641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = *value; 358641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 359641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai} 360641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 361641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set a mixer value 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3667b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackint snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 3677b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack int request, int validx, int value_set) 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char buf[2]; 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timeout = 10; 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds value_set = convert_bytes_value(cval, value_set); 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[0] = value_set & 0xff; 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf[1] = (value_set >> 8) & 0xff; 376cf3f9130f48ed04f32a31cfad21f576d45b8788bViral Mehta while (timeout-- > 0) 37784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (snd_usb_ctl_msg(cval->mixer->chip->dev, 37884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch usb_sndctrlpipe(cval->mixer->chip->dev, 0), 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds request, 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 38184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch validx, cval->mixer->ctrlif | (cval->id << 8), 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf, val_len, 100) >= 0) 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 38484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 38584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 38986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3917b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 394641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwaistatic int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 395641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int index, int value) 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 397641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai int err; 3987b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, 399641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai value); 400641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 401641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return err; 402641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cached |= 1 << channel; 403641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cval->cache_val[index] = value; 404641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4077bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai/* 4087bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai * TLV callback for mixer volume controls 4097bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai */ 4107bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwaistatic int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 4117bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai unsigned int size, unsigned int __user *_tlv) 4127bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai{ 4137bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 414b8e1c73f4608b8b9ca1e8f1a09f9fd8684e78071Takashi Iwai DECLARE_TLV_DB_MINMAX(scale, 0, 0); 4157bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai 4167bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (size < sizeof(scale)) 4177bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -ENOMEM; 418c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[2] = cval->dBmin; 419c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela scale[3] = cval->dBmax; 4207bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai if (copy_to_user(_tlv, scale, sizeof(scale))) 4217bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return -EFAULT; 4227bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai return 0; 4237bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai} 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parser routines begin here... 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid); 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * check if the input/output channel routing is enabled on the given bitmap. 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * used for mixer unit parser 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int idx = ich * num_outs + och; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bmap[idx >> 3] & (0x80 >> (idx & 7)); 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add an alsa control element 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * search and increment the index until an empty slot is found. 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if failed, give up and free the control instance. 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 45086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl) 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 45286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 45484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 45584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch while (snd_ctl_find_id(state->chip->card, &kctl->id)) 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.index++; 45784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) { 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); 4596639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return err; 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4616639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->elem_id = &kctl->id; 4626639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch cval->next_id_elem = state->mixer->id_elems[cval->id]; 4636639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch state->mixer->id_elems[cval->id] = cval; 4646639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * get a terminal name string 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct iterm_name_combo { 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} iterm_names[] = { 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0300, "Output" }, 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0301, "Speaker" }, 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0302, "Headphone" }, 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0303, "HMD Audio" }, 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0304, "Desktop Speaker" }, 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0305, "Room Speaker" }, 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0306, "Com Speaker" }, 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0307, "LFE" }, 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0600, "External In" }, 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0601, "Analog In" }, 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0602, "Digital In" }, 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0603, "Line" }, 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0604, "Legacy In" }, 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0605, "IEC958 In" }, 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0606, "1394 DA Stream" }, 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0607, "1394 DV Stream" }, 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0700, "Embedded" }, 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0701, "Noise Source" }, 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0702, "Equalization Noise" }, 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0703, "CD" }, 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0704, "DAT" }, 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0705, "DCC" }, 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0706, "MiniDisk" }, 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0707, "Analog Tape" }, 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0708, "Phonograph" }, 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0709, "VCR Audio" }, 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070a, "Video Disk Audio" }, 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070b, "DVD Audio" }, 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070c, "TV Tuner Audio" }, 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070d, "Satellite Rec Audio" }, 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070e, "Cable Tuner Audio" }, 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x070f, "DSS Audio" }, 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0710, "Radio Receiver" }, 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0711, "Radio Transmitter" }, 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0712, "Multi-Track Recorder" }, 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x0713, "Synthesizer" }, 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *name, int maxlen, int term_only) 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct iterm_name_combo *names; 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->name) 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* virtual type - not a real terminal */ 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (iterm->type >> 16) { 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (term_only) 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type >> 16) { 528de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Selector"); return 8; 530de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_PROCESSING_UNIT_V1: 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Process Unit"); return 12; 532de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_EXTENSION_UNIT_V1: 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Ext Unit"); return 8; 534de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mixer"); return 5; 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(name, "Unit %d", iterm->id); 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (iterm->type & 0xff00) { 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0100: 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "PCM"); return 3; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0200: 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Mic"); return 3; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0400: 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Headset"); return 7; 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0x0500: 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, "Phone"); return 5; 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (names = iterm_names; names->type; names++) 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (names->type == iterm->type) { 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(name, names->name); 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return strlen(names->name); 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse the source unit recursively until it reaches to a terminal 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or a branched unit. 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 56586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *p1; 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(term, 0, sizeof(*term)); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((p1 = find_audio_control_unit(state, id)) != NULL) { 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (p1[2]) { 573de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->type = combine_word(p1 + 4); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->channels = p1[7]; 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->chconfig = combine_word(p1 + 8); 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->name = p1[11]; 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 579de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_FEATURE_UNIT: 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds id = p1[4]; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 582de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->type = p1[2] << 16; /* virtual type */ 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->channels = p1[5 + p1[4]]; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->chconfig = combine_word(p1 + 6 + p1[4]); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->name = p1[p1[0] - 1]; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 588de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* call recursively to retrieve the channel info */ 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (check_input_term(state, p1[5], term) < 0) 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->type = p1[2] << 16; /* virtual type */ 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->id = id; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->name = p1[9 + p1[0] - 1]; 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 596de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_PROCESSING_UNIT_V1: 597de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_EXTENSION_UNIT_V1: 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (p1[6] == 1) { 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds id = p1[7]; 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* continue to parse */ 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->type = p1[2] << 16; /* virtual type */ 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->channels = p1[7 + p1[6]]; 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->chconfig = combine_word(p1 + 8 + p1[6]); 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds term->name = p1[12 + p1[6] + p1[11 + p1[6]]]; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Feature Unit 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* feature unit control information */ 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct usb_feature_control_info { 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int type; /* control type (mute, volume, etc.) */ 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct usb_feature_control_info audio_feature_info[] = { 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Mute", USB_MIXER_INV_BOOLEAN }, 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Volume", USB_MIXER_S16 }, 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Bass", USB_MIXER_S8 }, 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Mid", USB_MIXER_S8 }, 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Tone Control - Treble", USB_MIXER_S8 }, 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Auto Gain Control", USB_MIXER_BOOLEAN }, 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Delay Control", USB_MIXER_U16 }, 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Bass Boost", USB_MIXER_BOOLEAN }, 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { "Loudness", USB_MIXER_BOOLEAN }, 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private_free callback */ 64086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_elem_free(struct snd_kcontrol *kctl) 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6424d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kfree(kctl->private_data); 6434d572776d4dfa2d5385a2ec3acec3cc059149e13Jesper Juhl kctl->private_data = NULL; 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * interface to ALSA control for feature/mixer units 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * retrieve the minimum and maximum values for the specified control 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 65486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int get_min_max(struct usb_mixer_elem_info *cval, int default_min) 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* for failsafe */ 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = default_min; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->max = cval->min + 1; 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 660c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = cval->dBmax = 0; 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int minchn = 0; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_CHANNELS; i++) 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask & (1 << i)) { 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds minchn = i + 1; 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 675de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 676de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 67784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", 67884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->id, cval->mixer->ctrlif, cval->control, cval->id); 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 681de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int last_valid_res = cval->res; 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (cval->res > 1) { 6877b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 6887b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack (cval->control << 8) | minchn, cval->res / 2) < 0) 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res /= 2; 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 692de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = last_valid_res; 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->res == 0) 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 69714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 69814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai /* Additional checks for the proper resolution 69914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * 70014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * Some devices report smaller resolutions than actually 70114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * reacting. They don't return errors but simply clip 70214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai * to the lower aligned value. 70314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai */ 70414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (cval->min + cval->res < cval->max) { 70514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int last_valid_res = cval->res; 70614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai int saved, test, check; 707641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &saved); 70814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai for (;;) { 70914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test = saved; 71014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->max) 71114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test += cval->res; 71214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai else 71314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai test -= cval->res; 71414790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test < cval->min || test > cval->max || 715641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, test) || 716641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai get_cur_mix_raw(cval, minchn, &check)) { 71714790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res = last_valid_res; 71814790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 71914790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 72014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai if (test == check) 72114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai break; 72214790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai cval->res *= 2; 72314790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 724641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, minchn, 0, saved); 72514790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai } 72614790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 729c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 730c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* USB descriptions contain the dB scale in 1/256 dB unit 731c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela * while ALSA TLV contains in 1/100 dB unit 732c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela */ 733c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 734c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 735c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 736c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* something is wrong; assume it's either from/to 0dB */ 737c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin < 0) 738c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmax = 0; 739c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela else if (cval->dBmin > 0) 740c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela cval->dBmin = 0; 741c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (cval->dBmin > cval->dBmax) { 742c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* totally crap, return an error */ 743c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela return -EINVAL; 744c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 745c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela } 746c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get a feature/mixer unit info */ 75286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 75486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = cval->channels; 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->val_type == USB_MIXER_BOOLEAN || 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type == USB_MIXER_INV_BOOLEAN) { 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.max = 1; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval->initialized) 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.integer.min = 0; 77014790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai uinfo->value.integer.max = 77114790f1c73cfa4d4a22ac10b4501b4831380683cTakashi Iwai (cval->max - cval->min + cval->res - 1) / cval->res; 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get the current value from feature/mixer unit */ 77786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 77986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, err; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 782641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[0] = cval->min; 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 786641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 787641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 788641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &val); 789641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 790641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 791641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_relative_value(cval, val); 792641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai ucontrol->value.integer.value[cnt] = val; 793641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 795641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return 0; 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 798641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &val); 799641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 800641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put the current value to feature/mixer unit */ 80886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 81086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, cnt, val, oval, err; 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int changed = 0; 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cval->cmask) { 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = 0; 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (c = 0; c < MAX_CHANNELS; c++) { 817641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (!(cval->cmask & (1 << c))) 818641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai continue; 819641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, c + 1, cnt, &oval); 820641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (err < 0) 821641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 822641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = ucontrol->value.integer.value[cnt]; 823641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai val = get_abs_value(cval, val); 824641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai if (oval != val) { 825641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, c + 1, cnt, val); 826641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai changed = 1; 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 828641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai cnt++; 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* master channel */ 832641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai err = get_cur_mix_value(cval, 0, 0, &oval); 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 834641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai return cval->mixer->ignore_ctl_error ? 0 : err; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 838641b4879444c0edb276fedca5c2fcbd2e5c70044Takashi Iwai set_cur_mix_value(cval, 0, 0, val); 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds changed = 1; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return changed; 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 84586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new usb_feature_unit_ctl = { 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later manually */ 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_feature_get, 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_feature_put, 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a feature control 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85808d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwaistatic size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 85908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai{ 86008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 86108d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai} 86208d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai 86386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void build_feature_ctl(struct mixer_build *state, unsigned char *desc, 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int ctl_mask, int control, 86586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term *iterm, int unitid) 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int len = 0; 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mapped_name = 0; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int nameid = desc[desc[0] - 1]; 87086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 87186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 872c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds control++; /* change from zero-based to 1-based value */ 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 87645d760567a7d773237b8996584a4ae0440d5e369Daniel Mack if (control == UAC_GRAPHIC_EQUALIZER_CONTROL) { 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: not supported yet */ 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 881c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, control); 882c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 885561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 89084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = control; 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask = ctl_mask; 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = audio_feature_info[control-1].type; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ctl_mask == 0) 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; /* master channel */ 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, c = 0; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 16; i++) 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ctl_mask & (1 << i)) 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c++; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = c; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 916c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mapped_name = len != 0; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len && nameid) 919c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = snd_usb_copy_string_desc(state, nameid, 920c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela kctl->id.name, sizeof(kctl->id.name)); 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (control) { 92345d760567a7d773237b8996584a4ae0440d5e369Daniel Mack case UAC_MUTE_CONTROL: 92445d760567a7d773237b8996584a4ae0440d5e369Daniel Mack case UAC_VOLUME_CONTROL: 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the control name. the rule is: 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if a name id is given in descriptor, use it. 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected input can be determined, then use the name 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of terminal type. 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - if the connected output can be determined, use it. 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - otherwise, anonymous name. 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) { 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snprintf(kctl->id.name, sizeof(kctl->id.name), 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Feature %d", unitid); 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the stream direction: 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if the connected output is USB stream, then it's likely a 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * capture stream. otherwise it should be playback (hopefully :) 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! mapped_name && ! (state->oterm.type >> 16)) { 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((state->oterm.type & 0xff00) == 0x0100) { 94608d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Capture"); 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 94808d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai len = append_ctl_name(kctl, " Playback"); 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 95145d760567a7d773237b8996584a4ae0440d5e369Daniel Mack append_ctl_name(kctl, control == UAC_MUTE_CONTROL ? 95208d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai " Switch" : " Volume"); 95345d760567a7d773237b8996584a4ae0440d5e369Daniel Mack if (control == UAC_VOLUME_CONTROL) { 9547bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai kctl->tlv.c = mixer_vol_tlv; 9557bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai kctl->vd[0].access |= 9567bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_READ | 9577bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 958c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela check_mapped_dB(map, cval); 9597bc5ba7e02f63a5732fdf99e7471f54738f6f918Takashi Iwai } 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, audio_feature_info[control-1].name, 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(kctl->id.name)); 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9692cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* volume control quirks */ 97027d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch switch (state->chip->usb_id) { 97127d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0101): 97227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0104): 97327d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0471, 0x0105): 97427d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch case USB_ID(0x0672, 0x1041): 9752cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher /* quirk for UDA1321/N101. 9762cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * note that detection between firmware 2.1.1.7 (N101) 9772cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * and later 2.1.1.21 is not very clear from datasheets. 9782cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher * I hope that the min value is -15360 for newer firmware --jk 9792cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher */ 98027d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (!strcmp(kctl->id.name, "PCM Playback Volume") && 98127d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->min == -15616) { 9822cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 9832cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for UDA1321/N101 chip\n"); 98427d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch cval->max = -256; 98527d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch } 9862cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 9872cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 9882cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher case USB_ID(0x046d, 0x09a4): 9892cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 9902cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher snd_printk(KERN_INFO 9912cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher "set volume quirk for QuickCam E3500\n"); 9922cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->min = 6080; 9932cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->max = 8768; 9942cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher cval->res = 192; 9952cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher } 9962cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher break; 9972cf313ee75ddf6220b5d623b749b1bb79458307fAlexey Fisher 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); 100284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch add_control_to_empty(state, kctl); 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a feature unit 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * most of controlls are defined here. 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 101228e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mackstatic int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int channels, i, j; 101586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int master_bits, first_ch_bits; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, csize; 101828e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack struct uac_feature_unit_descriptor *ftr = _ftr; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 102028e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack if (ftr->bLength < 7 || ! (csize = ftr->bControlSize) || ftr->bLength < 7 + csize) { 1021de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* parse the source unit */ 102628e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack if ((err = parse_audio_unit(state, ftr->bSourceID)) < 0) 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* determine the input source type and name */ 103028e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack if (check_input_term(state, ftr->bSourceID, &iterm) < 0) 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 103328e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack channels = (ftr->bLength - 7) / csize - 1; 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 103528e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack master_bits = snd_usb_combine_bytes(ftr->controls, csize); 10360c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* master configuration quirks */ 10370c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen switch (state->chip->usb_id) { 10380c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen case USB_ID(0x08bb, 0x2702): 10390c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen snd_printk(KERN_INFO 10400c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen "usbmixer: master volume quirk for PCM2702 chip\n"); 10410c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen /* disable non-functional volume control */ 104245d760567a7d773237b8996584a4ae0440d5e369Daniel Mack master_bits &= ~UAC_FU_VOLUME; 10430c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen break; 10440c3cee57efcb1c79d62b1238c0d22afef4599247Javier Kohen } 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (channels > 0) 104628e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack first_ch_bits = snd_usb_combine_bytes(ftr->controls + csize, csize); 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds first_ch_bits = 0; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check all control types */ 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 10; i++) { 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int ch_bits = 0; 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = 0; j < channels; j++) { 105328e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack unsigned int mask = snd_usb_combine_bytes(ftr->controls + csize * (j+1), csize); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mask & (1 << i)) 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch_bits |= (1 << j); 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 105828e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid); 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (master_bits & (1 << i)) 106028e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid); 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mixer Unit 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a mixer unit control 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the callbacks are identical with feature unit. 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * input channel number (zero based) is given in control field instead. 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 107886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc, 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int in_pin, int in_ch, int unitid, 108086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term *iterm) 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 108286e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int input_pins = desc[4]; 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int num_outs = desc[5 + input_pins]; 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, len; 108686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1087c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1089c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1090c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1093561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 109784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = in_ch + 1; /* based on 1 */ 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_S16; 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_outs; i++) { 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (check_matrix_bitmap(desc + 9 + input_pins, in_ch, i, num_outs)) { 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->cmask |= (1 << i); 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels++; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_min_max(cval, 0); 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1119c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 112408d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Volume"); 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 112884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch add_control_to_empty(state, kctl); 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a mixer unit 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 113586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_mixer_unit(struct mixer_build *state, int unitid, unsigned char *desc) 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 113786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int input_pins, num_ins, num_outs; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pin, ich, err; 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (desc[0] < 11 || ! (input_pins = desc[4]) || ! (num_outs = desc[5 + input_pins])) { 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* no bmControls field (e.g. Maya44) -> ignore */ 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (desc[0] <= 10 + input_pins) { 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = 0; 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich = 0; 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pin = 0; pin < input_pins; pin++) { 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = parse_audio_unit(state, desc[5 + pin]); 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = check_input_term(state, desc[5 + pin], &iterm); 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins += iterm.channels; 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (; ich < num_ins; ++ich) { 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int och, ich_has_controls = 0; 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (och = 0; och < num_outs; ++och) { 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (check_matrix_bitmap(desc + 9 + input_pins, 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich, och, num_outs)) { 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ich_has_controls = 1; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ich_has_controls) 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds build_mixer_unit_ctl(state, desc, pin, ich, 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unitid, &iterm); 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Processing Unit / Extension Unit 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for processing/extension unit */ 118586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 118786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err, val; 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &val); 119184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (err < 0 && cval->mixer->ignore_ctl_error) { 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = cval->min; 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.integer.value[0] = val; 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for processing/extension unit */ 120386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 120586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, cval->control << 8, &oval); 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 121084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.integer.value[0]; 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_cur_ctl_value(cval, cval->control << 8, val); 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for processing/extension unit */ 122486e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_procunit_ctl = { 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_feature_info, 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_procunit_get, 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_procunit_put, 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * predefined data for processing units 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_value_info { 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int control; 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *suffix; 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val_type; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int min_value; 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct procunit_info { 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *values; 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info updown_proc_info[] = { 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN }, 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info prologic_proc_info[] = { 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN }, 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info threed_enh_proc_info[] = { 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN }, 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 }, 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info reverb_proc_info[] = { 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN }, 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 }, 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 }, 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info chorus_proc_info[] = { 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN }, 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_value_info dcr_proc_info[] = { 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN }, 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 }, 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 }, 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 }, 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 }, 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct procunit_info procunits[] = { 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_UPDOWN, "Up Down", updown_proc_info }, 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info }, 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_REVERB, "Reverb", reverb_proc_info }, 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_CHORUS, "Chorus", chorus_proc_info }, 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { USB_PROC_DCR, "DCR", dcr_proc_info }, 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 }, 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 12977d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk/* 12987d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * predefined data for extension units 12997d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 13007d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_rate_xu_info[] = { 13017d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 13027d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 13037d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 13047d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info clock_source_xu_info[] = { 13057d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 13067d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 13077d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 13087d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info spdif_format_xu_info[] = { 13097d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 13107d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 13117d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 13127d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_value_info soft_limit_xu_info[] = { 13137d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 13147d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 13157d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 13167d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchukstatic struct procunit_info extunits[] = { 13177d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 13187d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 13197d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 13207d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 13217d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk { 0 } 13227d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk}; 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * build a processing/extension unit 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 132686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int build_audio_procunit(struct mixer_build *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name) 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_ins = dsc[6]; 132986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 133086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, err, nameid, type, len; 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_info *info; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct procunit_value_info *valinfo; 1334c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_value_info default_value_info[] = { 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0x01, "Switch", USB_MIXER_BOOLEAN }, 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct procunit_info default_info = { 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0, NULL, default_value_info 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dsc[0] < 13 || dsc[0] < 13 + num_ins || dsc[0] < num_ins + dsc[11 + num_ins]) { 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) { 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = parse_audio_unit(state, dsc[7 + i])) < 0) 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = combine_word(&dsc[4]); 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (info = list; info && info->type; info++) 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->type == type) 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! info || ! info->type) 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info = &default_info; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (valinfo = info->values; valinfo->control; valinfo++) { 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: bitmap might be longer than 8bit */ 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! (dsc[12 + num_ins] & (1 << (valinfo->control - 1)))) 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1364c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, valinfo->control); 1365c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1367561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 137284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->control = valinfo->control; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = valinfo->val_type; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* get min/max values */ 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) { 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* FIXME: hard-coded */ 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->max = dsc[15]; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 13857d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else { 13867d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk if (type == USB_XU_CLOCK_RATE) { 13877d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk /* E-Mu USB 0404/0202/TrackerPre 13887d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk * samplerate control quirk 13897d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk */ 13907d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->min = 0; 13917d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->max = 5; 13927d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->res = 1; 13937d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk cval->initialized = 1; 13947d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } else 13957d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk get_min_max(cval, valinfo->min_value); 13967d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk } 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_elem_free; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1406c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_mapped_name(map, kctl->id.name, 1407c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela sizeof(kctl->id.name))) 1408c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela /* nothing */ ; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (info->name) 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nameid = dsc[12 + num_ins + dsc[11 + num_ins]]; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nameid) 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 141908d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " "); 142008d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, valinfo->suffix); 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 142484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = add_control_to_empty(state, kctl)) < 0) 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 143186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_processing_unit(struct mixer_build *state, int unitid, unsigned char *desc) 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return build_audio_procunit(state, unitid, desc, procunits, "Processing Unit"); 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 143686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_extension_unit(struct mixer_build *state, int unitid, unsigned char *desc) 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14387d2b451e65d255427c108e990507964ac39c13eeSergiy Kovalchuk return build_audio_procunit(state, unitid, desc, extunits, "Extension Unit"); 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Selector Unit 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* info callback for selector unit 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use an enumerator type for routing 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 144986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 145186e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kcontrol->private_value; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14545e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai if (snd_BUG_ON(!itemlist)) 14555e246b850df563224be26f1d409cf66fd6c968dfTakashi Iwai return -EINVAL; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->count = 1; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.enumerated.items = cval->max; 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((int)uinfo->value.enumerated.item >= cval->max) 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uinfo->value.enumerated.item = cval->max - 1; 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* get callback for selector unit */ 146686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 146886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, err; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, 0, &val); 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 147384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) { 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = 0; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_relative_value(cval, val); 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ucontrol->value.enumerated.item[0] = val; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* put callback for selector unit */ 148586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 148786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kcontrol->private_data; 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, oval, err; 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = get_cur_ctl_value(cval, 0, &oval); 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 149284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (cval->mixer->ignore_ctl_error) 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = ucontrol->value.enumerated.item[0]; 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = get_abs_value(cval, val); 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != oval) { 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_cur_ctl_value(cval, 0, val); 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* alsa control interface for selector unit */ 150686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic struct snd_kcontrol_new mixer_selectunit_ctl = { 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "", /* will be filled later */ 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .info = mixer_ctl_selector_info, 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .get = mixer_ctl_selector_get, 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put = mixer_ctl_selector_put, 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* private free callback. 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free both private_data and private_value 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 151886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, num_ins = 0; 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_data) { 152386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval = kctl->private_data; 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num_ins = cval->max; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_data = NULL; 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kctl->private_value) { 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **itemlist = (char **)kctl->private_value; 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist[i]); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(itemlist); 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = 0; 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse a selector unit 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 154086e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsigned char *desc) 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int num_ins = desc[4]; 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, nameid, len; 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 154586e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *cval; 154686e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct snd_kcontrol *kctl; 1547c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela const struct usbmix_name_map *map; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char **namelist; 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155038977e96cb32e658716e11a05ec7f1fc4618e0f3Russ Cox if (! num_ins || desc[0] < 5 + num_ins) { 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) { 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = parse_audio_unit(state, desc[5 + i])) < 0) 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (num_ins == 1) /* only one ? nonsense! */ 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1563c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela map = find_map(state, unitid, 0); 1564c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela if (check_ignored_ctl(map)) 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1567561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai cval = kzalloc(sizeof(*cval), GFP_KERNEL); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! cval) { 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 157284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch cval->mixer = state->mixer; 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id = unitid; 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->val_type = USB_MIXER_U8; 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->channels = 1; 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->min = 1; 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->max = num_ins; 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->res = 1; 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->initialized = 1; 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds namelist = kmalloc(sizeof(char *) * num_ins, GFP_KERNEL); 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist) { 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_ITEM_NAME_LEN 64 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < num_ins; i++) { 158986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_audio_term iterm; 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = 0; 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! namelist[i]) { 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc\n"); 15947fbe3ca571e4b0795b729658e3d76824be54cb18Mariusz Kozlowski while (i--) 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist[i]); 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(namelist); 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16008e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch len = check_mapped_selector_name(state, unitid, i, namelist[i], 16018e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch MAX_ITEM_NAME_LEN); 16028e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch if (! len && check_input_term(state, desc[5 + i], &iterm) >= 0) 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sprintf(namelist[i], "Input %d", i); 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! kctl) { 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1611878b4789196e3cd470f843854b6b09d963214659Jesper Juhl kfree(namelist); 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(cval); 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_value = (unsigned long)namelist; 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->private_free = usb_mixer_selector_elem_free; 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds nameid = desc[desc[0] - 1]; 1619c3a3e040f01457d2ea4f199f75ca205401001a3bJaroslav Kysela len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len) 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (nameid) 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = get_term_name(state, &state->oterm, 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kctl->id.name, sizeof(kctl->id.name), 0); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (! len) 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((state->oterm.type & 0xff00) == 0x0100) 163108d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Capture Source"); 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 163308d1e635089f41e28fec644a8620a0e8d66b1235Takashi Iwai append_ctl_name(kctl, " Playback Source"); 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cval->id, kctl->id.name, num_ins); 163884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if ((err = add_control_to_empty(state, kctl)) < 0) 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parse an audio unit recursively 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 164986e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int parse_audio_unit(struct mixer_build *state, int unitid) 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *p1; 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_and_set_bit(unitid, state->unitbitmap)) 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* the unit already visited */ 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p1 = find_audio_control_unit(state, unitid); 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p1) { 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (p1[2]) { 1663de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_INPUT_TERMINAL: 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* NOP */ 1665de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_MIXER_UNIT: 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_mixer_unit(state, unitid, p1); 1667de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_SELECTOR_UNIT: 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_selector_unit(state, unitid, p1); 1669de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_FEATURE_UNIT: 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_feature_unit(state, unitid, p1); 1671de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_PROCESSING_UNIT_V1: 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_processing_unit(state, unitid, p1); 1673de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack case UAC_EXTENSION_UNIT_V1: 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return parse_audio_extension_unit(state, unitid, p1); 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 168184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 168284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 16836639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->id_elems); 16846639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (mixer->urb) { 16856639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer->urb->transfer_buffer); 16866639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_free_urb(mixer->urb); 16876639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 168868df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_free_urb(mixer->rc_urb); 1689b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch kfree(mixer->rc_setup_packet); 169084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch kfree(mixer); 169184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 169284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 169386e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwaistatic int snd_usb_mixer_dev_free(struct snd_device *device) 169484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 169584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer = device->device_data; 169684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch snd_usb_mixer_free(mixer); 169784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 169884957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 169984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * create mixer controls 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1703de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 170584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischstatic int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 170728e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack struct uac_output_terminal_descriptor_v1 *desc; 170886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct mixer_build state; 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const struct usbmix_ctl_map *map; 171184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_host_interface *hostif; 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 171384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&state, 0, sizeof(state)); 171584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.chip = mixer->chip; 171684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch state.mixer = mixer; 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.buffer = hostif->extra; 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.buflen = hostif->extralen; 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check the mapping table */ 172127d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch for (map = usbmix_ctl_maps; map->id; map++) { 172227d10f5664c7650af3b2ffadfefaf19b36dc7bd8Clemens Ladisch if (map->id == state.chip->usb_id) { 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds state.map = map->map; 17248e062ec7108f8a91149e6bccddc3b7341e406274Clemens Ladisch state.selector_map = map->selector_map; 172584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->ignore_ctl_error = map->ignore_ctl_error; 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds desc = NULL; 1731de48c7bc6f93c6c8e0be8612c9d72a2dc92eaa01Daniel Mack while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, UAC_OUTPUT_TERMINAL)) != NULL) { 173228e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack if (desc->bLength < 9) 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; /* invalid descriptor? */ 173428e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 173528e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack state.oterm.id = desc->bTerminalID; 173628e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 173728e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack state.oterm.name = desc->iTerminal; 173828e1b773083d349d5223f586a39fa30f5d0f1c36Daniel Mack err = parse_audio_unit(&state, desc->bSourceID); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 174484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 17457b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mackvoid snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 17466639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 174786e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai struct usb_mixer_elem_info *info; 17486639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 17496639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) 17506639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 17516639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch info->elem_id); 17526639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 17536639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 1754ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 1755ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid, 1756ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval) 1757ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 1758ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 1759ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "S8", "U8", "S16", "U16"}; 1760ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Unit: %i\n", unitid); 1761ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (cval->elem_id) 1762ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", 1763ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->elem_id->name, cval->elem_id->index); 1764ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 1765ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela "channels=%i, type=\"%s\"\n", cval->id, 1766ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->control, cval->cmask, cval->channels, 1767ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela val_types[cval->val_type]); 1768ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 1769ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval->min, cval->max, cval->dBmin, cval->dBmax); 1770ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 1771ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1772ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kyselastatic void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 1773ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_buffer *buffer) 1774ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela{ 1775ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_usb_audio *chip = entry->private_data; 1776ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_interface *mixer; 1777ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct usb_mixer_elem_info *cval; 1778ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela int unitid; 1779ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1780ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela list_for_each_entry(mixer, &chip->mixer_list, list) { 1781ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, 17827affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 17837affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela chip->usb_id, mixer->ctrlif, 17847affdc17d49b5d9e9c350d5d99ee34ab8655c7b4Jaroslav Kysela mixer->ignore_ctl_error); 1785ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 1786ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 1787ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela for (cval = mixer->id_elems[unitid]; cval; 1788ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela cval = cval->next_id_elem) 1789ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_usb_mixer_dump_cval(buffer, unitid, cval); 1790ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 1791ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela } 1792ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela} 1793ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 17947d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic void snd_usb_mixer_status_complete(struct urb *urb) 17956639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 17966639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer = urb->context; 17976639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 17986639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (urb->status == 0) { 17996639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch u8 *buf = urb->transfer_buffer; 18006639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch int i; 18016639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 18026639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch for (i = urb->actual_length; i >= 2; buf += 2, i -= 2) { 18036639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", 18046639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch buf[0], buf[1]); 18056639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* ignore any notifications not from the control interface */ 18066639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if ((buf[0] & 0x0f) != 0) 18076639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch continue; 18086639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!(buf[0] & 0x40)) 18096639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_usb_mixer_notify_id(mixer, buf[1]); 1810b259b10c420a59a2fdbcf5a3498253ebcbdffa1eClemens Ladisch else 18117b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack snd_usb_mixer_rc_memory_change(mixer, buf[1]); 18126639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 18136639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 18146639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (urb->status != -ENOENT && urb->status != -ECONNRESET) { 18156639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch urb->dev = mixer->chip->dev; 18166639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(urb, GFP_ATOMIC); 18176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 18186639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 18196639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 18206639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch/* create the handler for the optional status interrupt endpoint */ 18216639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladischstatic int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 18226639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch{ 18236639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_host_interface *hostif; 18246639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_endpoint_descriptor *ep; 18256639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch void *transfer_buffer; 18266639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch int buffer_length; 18276639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch unsigned int epnum; 18286639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 18296639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch hostif = &usb_ifnum_to_if(mixer->chip->dev, mixer->ctrlif)->altsetting[0]; 18306639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch /* we need one interrupt input endpoint */ 18316639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (get_iface_desc(hostif)->bNumEndpoints < 1) 18326639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 18336639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch ep = get_endpoint(hostif, 0); 1834913ae5a24efd27deef4fc154953871b62d0d99cdJulia Lawall if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 18356639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 18366639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 183742a6e66f1e40a930d093c33ba0bb9d8d8e4555edJulia Lawall epnum = usb_endpoint_num(ep); 18386639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch buffer_length = le16_to_cpu(ep->wMaxPacketSize); 18396639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 18406639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!transfer_buffer) 18416639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 18426639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 18436639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->urb) { 18446639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(transfer_buffer); 18456639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 18466639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 18476639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_fill_int_urb(mixer->urb, mixer->chip->dev, 18486639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_rcvintpipe(mixer->chip->dev, epnum), 18496639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch transfer_buffer, buffer_length, 18506639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch snd_usb_mixer_status_complete, mixer, ep->bInterval); 18516639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch usb_submit_urb(mixer->urb, GFP_KERNEL); 18526639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return 0; 18536639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch} 18546639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch 18557a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwaiint snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 18567a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai int ignore_error) 185784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 185886e07d34658bb85b3424f4db64fa28f884edbe8dTakashi Iwai static struct snd_device_ops dev_ops = { 185984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch .dev_free = snd_usb_mixer_dev_free 186084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch }; 186184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch struct usb_mixer_interface *mixer; 1862ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela struct snd_info_entry *entry; 18637b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack struct usb_host_interface *host_iface; 18647b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack int err, protocol; 186584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 186684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch strcpy(chip->card->mixername, "USB Mixer"); 186784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 1868561b220a4dece18d67177413e6fa21b49aa4acceTakashi Iwai mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 186984957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch if (!mixer) 187084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return -ENOMEM; 187184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->chip = chip; 187284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch mixer->ctrlif = ctrlif; 18737a9b8063cf7d78d7de4f2555357101087548c699Takashi Iwai mixer->ignore_ctl_error = ignore_error; 1874291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 1875291186e049d7f8178ad31d43c38a53889f25d79eJaroslav Kysela GFP_KERNEL); 18766639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if (!mixer->id_elems) { 18776639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch kfree(mixer); 18786639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch return -ENOMEM; 18796639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch } 188084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 18817b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 18827b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack protocol = host_iface->desc.bInterfaceProtocol; 18837b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack 18847b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack /* FIXME! */ 18857b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack if (protocol != UAC_VERSION_1) { 18867b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack snd_printk(KERN_WARNING "mixer interface protocol 0x%02x not yet supported\n", 18877b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack protocol); 18887b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack return 0; 18897b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack } 18907b8a043f2686af9f41e313a78ed5e98233e5fdedDaniel Mack 18916639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch if ((err = snd_usb_mixer_controls(mixer)) < 0 || 189293446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch (err = snd_usb_mixer_status_create(mixer)) < 0) 189393446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 189484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 18957b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 1896468b8fde24d49f5b34e9152981824b9d4ecd1a2eClemens Ladisch 189784957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); 189893446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch if (err < 0) 189993446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch goto _error; 1900ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 1901ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela if (list_empty(&chip->mixer_list) && 1902ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela !snd_card_proc_new(chip->card, "usbmixer", &entry)) 1903ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 1904ebfdeea3df2b8c265975b6acc47996a0b7c507e8Jaroslav Kysela 190584957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch list_add(&mixer->list, &chip->mixer_list); 190684957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch return 0; 190793446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch 190893446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch_error: 190993446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch snd_usb_mixer_free(mixer); 191093446edcd05589201f20cf8843e8c4f990c18ae4Clemens Ladisch return err; 191184957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 191284957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch 191384957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladischvoid snd_usb_mixer_disconnect(struct list_head *p) 191484957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch{ 19156639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch struct usb_mixer_interface *mixer; 19167b1eda223debcba706ab989a09c4eecb327aebdfDaniel Mack 19176639b6c2367f884ca172b78d69f7da17bfab2e5eClemens Ladisch mixer = list_entry(p, struct usb_mixer_interface, list); 191868df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->urb); 191968df9de1d0e95034355283dc12056f93de8e0a79Mariusz Kozlowski usb_kill_urb(mixer->rc_urb); 192084957a8ab086377a025e0448fa716ed5983f3c3aClemens Ladisch} 1921