1f0b5e634SDaniel Mack /* 2f0b5e634SDaniel Mack * (Tentative) USB Audio Driver for ALSA 3f0b5e634SDaniel Mack * 4f0b5e634SDaniel Mack * Mixer control part 5f0b5e634SDaniel Mack * 6f0b5e634SDaniel Mack * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 7f0b5e634SDaniel Mack * 8f0b5e634SDaniel Mack * Many codes borrowed from audio.c by 9f0b5e634SDaniel Mack * Alan Cox (alan@lxorguk.ukuu.org.uk) 10f0b5e634SDaniel Mack * Thomas Sailer (sailer@ife.ee.ethz.ch) 11f0b5e634SDaniel Mack * 12f0b5e634SDaniel Mack * 13f0b5e634SDaniel Mack * This program is free software; you can redistribute it and/or modify 14f0b5e634SDaniel Mack * it under the terms of the GNU General Public License as published by 15f0b5e634SDaniel Mack * the Free Software Foundation; either version 2 of the License, or 16f0b5e634SDaniel Mack * (at your option) any later version. 17f0b5e634SDaniel Mack * 18f0b5e634SDaniel Mack * This program is distributed in the hope that it will be useful, 19f0b5e634SDaniel Mack * but WITHOUT ANY WARRANTY; without even the implied warranty of 20f0b5e634SDaniel Mack * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21f0b5e634SDaniel Mack * GNU General Public License for more details. 22f0b5e634SDaniel Mack * 23f0b5e634SDaniel Mack * You should have received a copy of the GNU General Public License 24f0b5e634SDaniel Mack * along with this program; if not, write to the Free Software 25f0b5e634SDaniel Mack * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26f0b5e634SDaniel Mack * 27f0b5e634SDaniel Mack */ 28f0b5e634SDaniel Mack 29157a57b6SDaniel Mack /* 30157a57b6SDaniel Mack * TODOs, for both the mixer and the streaming interfaces: 31157a57b6SDaniel Mack * 32157a57b6SDaniel Mack * - support for UAC2 effect units 33157a57b6SDaniel Mack * - support for graphical equalizers 34157a57b6SDaniel Mack * - RANGE and MEM set commands (UAC2) 35157a57b6SDaniel Mack * - RANGE and MEM interrupt dispatchers (UAC2) 36157a57b6SDaniel Mack * - audio channel clustering (UAC2) 37157a57b6SDaniel Mack * - audio sample rate converter units (UAC2) 38157a57b6SDaniel Mack * - proper handling of clock multipliers (UAC2) 39157a57b6SDaniel Mack * - dispatch clock change notifications (UAC2) 40157a57b6SDaniel Mack * - stop PCM streams which use a clock that became invalid 41157a57b6SDaniel Mack * - stop PCM streams which use a clock selector that has changed 42157a57b6SDaniel Mack * - parse available sample rates again when clock sources changed 43157a57b6SDaniel Mack */ 44157a57b6SDaniel Mack 45f0b5e634SDaniel Mack #include <linux/bitops.h> 46f0b5e634SDaniel Mack #include <linux/init.h> 47f0b5e634SDaniel Mack #include <linux/list.h> 48cddaafb9SDaniel Mack #include <linux/log2.h> 49f0b5e634SDaniel Mack #include <linux/slab.h> 50f0b5e634SDaniel Mack #include <linux/string.h> 51f0b5e634SDaniel Mack #include <linux/usb.h> 52f0b5e634SDaniel Mack #include <linux/usb/audio.h> 5323caaf19SDaniel Mack #include <linux/usb/audio-v2.h> 549a2fe9b8SRuslan Bilovol #include <linux/usb/audio-v3.h> 55f0b5e634SDaniel Mack 56f0b5e634SDaniel Mack #include <sound/core.h> 57f0b5e634SDaniel Mack #include <sound/control.h> 58f0b5e634SDaniel Mack #include <sound/hwdep.h> 59f0b5e634SDaniel Mack #include <sound/info.h> 60f0b5e634SDaniel Mack #include <sound/tlv.h> 61f0b5e634SDaniel Mack 62f0b5e634SDaniel Mack #include "usbaudio.h" 63f0b5e634SDaniel Mack #include "mixer.h" 64f0b5e634SDaniel Mack #include "helper.h" 65f0b5e634SDaniel Mack #include "mixer_quirks.h" 6688a8516aSOliver Neukum #include "power.h" 67f0b5e634SDaniel Mack 68f0b5e634SDaniel Mack #define MAX_ID_ELEMS 256 69f0b5e634SDaniel Mack 70f0b5e634SDaniel Mack struct usb_audio_term { 71f0b5e634SDaniel Mack int id; 72f0b5e634SDaniel Mack int type; 73f0b5e634SDaniel Mack int channels; 74f0b5e634SDaniel Mack unsigned int chconfig; 75f0b5e634SDaniel Mack int name; 76f0b5e634SDaniel Mack }; 77f0b5e634SDaniel Mack 78f0b5e634SDaniel Mack struct usbmix_name_map; 79f0b5e634SDaniel Mack 80f0b5e634SDaniel Mack struct mixer_build { 81f0b5e634SDaniel Mack struct snd_usb_audio *chip; 82f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 83f0b5e634SDaniel Mack unsigned char *buffer; 84f0b5e634SDaniel Mack unsigned int buflen; 85f0b5e634SDaniel Mack DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 86f0b5e634SDaniel Mack struct usb_audio_term oterm; 87f0b5e634SDaniel Mack const struct usbmix_name_map *map; 88f0b5e634SDaniel Mack const struct usbmix_selector_map *selector_map; 89f0b5e634SDaniel Mack }; 90f0b5e634SDaniel Mack 911cdfa9f3SJoseph Teichman /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ 92f0b5e634SDaniel Mack enum { 93f0b5e634SDaniel Mack USB_XU_CLOCK_RATE = 0xe301, 94f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE = 0xe302, 95f0b5e634SDaniel Mack USB_XU_DIGITAL_IO_STATUS = 0xe303, 96f0b5e634SDaniel Mack USB_XU_DEVICE_OPTIONS = 0xe304, 97f0b5e634SDaniel Mack USB_XU_DIRECT_MONITORING = 0xe305, 98f0b5e634SDaniel Mack USB_XU_METERING = 0xe306 99f0b5e634SDaniel Mack }; 100f0b5e634SDaniel Mack enum { 101f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 102f0b5e634SDaniel Mack USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 103f0b5e634SDaniel Mack USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 104f0b5e634SDaniel Mack USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 105f0b5e634SDaniel Mack }; 106f0b5e634SDaniel Mack 107f0b5e634SDaniel Mack /* 108f0b5e634SDaniel Mack * manual mapping of mixer names 109f0b5e634SDaniel Mack * if the mixer topology is too complicated and the parsed names are 110f0b5e634SDaniel Mack * ambiguous, add the entries in usbmixer_maps.c. 111f0b5e634SDaniel Mack */ 112f0b5e634SDaniel Mack #include "mixer_maps.c" 113f0b5e634SDaniel Mack 114f0b5e634SDaniel Mack static const struct usbmix_name_map * 115f0b5e634SDaniel Mack find_map(struct mixer_build *state, int unitid, int control) 116f0b5e634SDaniel Mack { 117f0b5e634SDaniel Mack const struct usbmix_name_map *p = state->map; 118f0b5e634SDaniel Mack 119f0b5e634SDaniel Mack if (!p) 120f0b5e634SDaniel Mack return NULL; 121f0b5e634SDaniel Mack 122f0b5e634SDaniel Mack for (p = state->map; p->id; p++) { 123f0b5e634SDaniel Mack if (p->id == unitid && 124f0b5e634SDaniel Mack (!control || !p->control || control == p->control)) 125f0b5e634SDaniel Mack return p; 126f0b5e634SDaniel Mack } 127f0b5e634SDaniel Mack return NULL; 128f0b5e634SDaniel Mack } 129f0b5e634SDaniel Mack 130f0b5e634SDaniel Mack /* get the mapped name if the unit matches */ 131f0b5e634SDaniel Mack static int 132f0b5e634SDaniel Mack check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 133f0b5e634SDaniel Mack { 134f0b5e634SDaniel Mack if (!p || !p->name) 135f0b5e634SDaniel Mack return 0; 136f0b5e634SDaniel Mack 137f0b5e634SDaniel Mack buflen--; 138f0b5e634SDaniel Mack return strlcpy(buf, p->name, buflen); 139f0b5e634SDaniel Mack } 140f0b5e634SDaniel Mack 1415aeee342STakashi Iwai /* ignore the error value if ignore_ctl_error flag is set */ 1425aeee342STakashi Iwai #define filter_error(cval, err) \ 1433360b84bSTakashi Iwai ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) 1445aeee342STakashi Iwai 145f0b5e634SDaniel Mack /* check whether the control should be ignored */ 146f0b5e634SDaniel Mack static inline int 147f0b5e634SDaniel Mack check_ignored_ctl(const struct usbmix_name_map *p) 148f0b5e634SDaniel Mack { 149f0b5e634SDaniel Mack if (!p || p->name || p->dB) 150f0b5e634SDaniel Mack return 0; 151f0b5e634SDaniel Mack return 1; 152f0b5e634SDaniel Mack } 153f0b5e634SDaniel Mack 154f0b5e634SDaniel Mack /* dB mapping */ 155f0b5e634SDaniel Mack static inline void check_mapped_dB(const struct usbmix_name_map *p, 156f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 157f0b5e634SDaniel Mack { 158f0b5e634SDaniel Mack if (p && p->dB) { 159f0b5e634SDaniel Mack cval->dBmin = p->dB->min; 160f0b5e634SDaniel Mack cval->dBmax = p->dB->max; 16138b65190STakashi Iwai cval->initialized = 1; 162f0b5e634SDaniel Mack } 163f0b5e634SDaniel Mack } 164f0b5e634SDaniel Mack 165f0b5e634SDaniel Mack /* get the mapped selector source name */ 166f0b5e634SDaniel Mack static int check_mapped_selector_name(struct mixer_build *state, int unitid, 167f0b5e634SDaniel Mack int index, char *buf, int buflen) 168f0b5e634SDaniel Mack { 169f0b5e634SDaniel Mack const struct usbmix_selector_map *p; 170f0b5e634SDaniel Mack 171f0b5e634SDaniel Mack if (!state->selector_map) 172f0b5e634SDaniel Mack return 0; 173f0b5e634SDaniel Mack for (p = state->selector_map; p->id; p++) { 174f0b5e634SDaniel Mack if (p->id == unitid && index < p->count) 175f0b5e634SDaniel Mack return strlcpy(buf, p->names[index], buflen); 176f0b5e634SDaniel Mack } 177f0b5e634SDaniel Mack return 0; 178f0b5e634SDaniel Mack } 179f0b5e634SDaniel Mack 180f0b5e634SDaniel Mack /* 181f0b5e634SDaniel Mack * find an audio control unit with the given unit id 182f0b5e634SDaniel Mack */ 1836bc170e4SDaniel Mack static void *find_audio_control_unit(struct mixer_build *state, 1846bc170e4SDaniel Mack unsigned char unit) 185f0b5e634SDaniel Mack { 18667e1daa0SDaniel Mack /* we just parse the header */ 18767e1daa0SDaniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 188f0b5e634SDaniel Mack 18967e1daa0SDaniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 190f0b5e634SDaniel Mack USB_DT_CS_INTERFACE)) != NULL) { 19167e1daa0SDaniel Mack if (hdr->bLength >= 4 && 19267e1daa0SDaniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 1939a2fe9b8SRuslan Bilovol hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER && 19467e1daa0SDaniel Mack hdr->bUnitID == unit) 19567e1daa0SDaniel Mack return hdr; 196f0b5e634SDaniel Mack } 19767e1daa0SDaniel Mack 198f0b5e634SDaniel Mack return NULL; 199f0b5e634SDaniel Mack } 200f0b5e634SDaniel Mack 201f0b5e634SDaniel Mack /* 202f0b5e634SDaniel Mack * copy a string with the given id 203f0b5e634SDaniel Mack */ 2046bc170e4SDaniel Mack static int snd_usb_copy_string_desc(struct mixer_build *state, 2056bc170e4SDaniel Mack int index, char *buf, int maxlen) 206f0b5e634SDaniel Mack { 207f0b5e634SDaniel Mack int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 208251552a2SJaejoong Kim 209251552a2SJaejoong Kim if (len < 0) 210251552a2SJaejoong Kim return 0; 211251552a2SJaejoong Kim 212f0b5e634SDaniel Mack buf[len] = 0; 213f0b5e634SDaniel Mack return len; 214f0b5e634SDaniel Mack } 215f0b5e634SDaniel Mack 216f0b5e634SDaniel Mack /* 217f0b5e634SDaniel Mack * convert from the byte/word on usb descriptor to the zero-based integer 218f0b5e634SDaniel Mack */ 219f0b5e634SDaniel Mack static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 220f0b5e634SDaniel Mack { 221f0b5e634SDaniel Mack switch (cval->val_type) { 222f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 223f0b5e634SDaniel Mack return !!val; 224f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 225f0b5e634SDaniel Mack return !val; 226f0b5e634SDaniel Mack case USB_MIXER_U8: 227f0b5e634SDaniel Mack val &= 0xff; 228f0b5e634SDaniel Mack break; 229f0b5e634SDaniel Mack case USB_MIXER_S8: 230f0b5e634SDaniel Mack val &= 0xff; 231f0b5e634SDaniel Mack if (val >= 0x80) 232f0b5e634SDaniel Mack val -= 0x100; 233f0b5e634SDaniel Mack break; 234f0b5e634SDaniel Mack case USB_MIXER_U16: 235f0b5e634SDaniel Mack val &= 0xffff; 236f0b5e634SDaniel Mack break; 237f0b5e634SDaniel Mack case USB_MIXER_S16: 238f0b5e634SDaniel Mack val &= 0xffff; 239f0b5e634SDaniel Mack if (val >= 0x8000) 240f0b5e634SDaniel Mack val -= 0x10000; 241f0b5e634SDaniel Mack break; 242f0b5e634SDaniel Mack } 243f0b5e634SDaniel Mack return val; 244f0b5e634SDaniel Mack } 245f0b5e634SDaniel Mack 246f0b5e634SDaniel Mack /* 247f0b5e634SDaniel Mack * convert from the zero-based int to the byte/word for usb descriptor 248f0b5e634SDaniel Mack */ 249f0b5e634SDaniel Mack static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 250f0b5e634SDaniel Mack { 251f0b5e634SDaniel Mack switch (cval->val_type) { 252f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 253f0b5e634SDaniel Mack return !!val; 254f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 255f0b5e634SDaniel Mack return !val; 256f0b5e634SDaniel Mack case USB_MIXER_S8: 257f0b5e634SDaniel Mack case USB_MIXER_U8: 258f0b5e634SDaniel Mack return val & 0xff; 259f0b5e634SDaniel Mack case USB_MIXER_S16: 260f0b5e634SDaniel Mack case USB_MIXER_U16: 261f0b5e634SDaniel Mack return val & 0xffff; 262f0b5e634SDaniel Mack } 263f0b5e634SDaniel Mack return 0; /* not reached */ 264f0b5e634SDaniel Mack } 265f0b5e634SDaniel Mack 266f0b5e634SDaniel Mack static int get_relative_value(struct usb_mixer_elem_info *cval, int val) 267f0b5e634SDaniel Mack { 268f0b5e634SDaniel Mack if (!cval->res) 269f0b5e634SDaniel Mack cval->res = 1; 270f0b5e634SDaniel Mack if (val < cval->min) 271f0b5e634SDaniel Mack return 0; 272f0b5e634SDaniel Mack else if (val >= cval->max) 273f0b5e634SDaniel Mack return (cval->max - cval->min + cval->res - 1) / cval->res; 274f0b5e634SDaniel Mack else 275f0b5e634SDaniel Mack return (val - cval->min) / cval->res; 276f0b5e634SDaniel Mack } 277f0b5e634SDaniel Mack 278f0b5e634SDaniel Mack static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 279f0b5e634SDaniel Mack { 280f0b5e634SDaniel Mack if (val < 0) 281f0b5e634SDaniel Mack return cval->min; 282f0b5e634SDaniel Mack if (!cval->res) 283f0b5e634SDaniel Mack cval->res = 1; 284f0b5e634SDaniel Mack val *= cval->res; 285f0b5e634SDaniel Mack val += cval->min; 286f0b5e634SDaniel Mack if (val > cval->max) 287f0b5e634SDaniel Mack return cval->max; 288f0b5e634SDaniel Mack return val; 289f0b5e634SDaniel Mack } 290f0b5e634SDaniel Mack 291bc18e31cSJulian Scheel static int uac2_ctl_value_size(int val_type) 292bc18e31cSJulian Scheel { 293bc18e31cSJulian Scheel switch (val_type) { 294bc18e31cSJulian Scheel case USB_MIXER_S32: 295bc18e31cSJulian Scheel case USB_MIXER_U32: 296bc18e31cSJulian Scheel return 4; 297bc18e31cSJulian Scheel case USB_MIXER_S16: 298bc18e31cSJulian Scheel case USB_MIXER_U16: 299bc18e31cSJulian Scheel return 2; 300bc18e31cSJulian Scheel default: 301bc18e31cSJulian Scheel return 1; 302bc18e31cSJulian Scheel } 303bc18e31cSJulian Scheel return 0; /* unreachable */ 304bc18e31cSJulian Scheel } 305bc18e31cSJulian Scheel 306f0b5e634SDaniel Mack 307f0b5e634SDaniel Mack /* 308f0b5e634SDaniel Mack * retrieve a mixer value 309f0b5e634SDaniel Mack */ 310f0b5e634SDaniel Mack 3116bc170e4SDaniel Mack static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, 3126bc170e4SDaniel Mack int validx, int *value_ret) 313f0b5e634SDaniel Mack { 3143360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 315f0b5e634SDaniel Mack unsigned char buf[2]; 316f0b5e634SDaniel Mack int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 317f0b5e634SDaniel Mack int timeout = 10; 318978520b7STakashi Iwai int idx = 0, err; 319f0b5e634SDaniel Mack 32047ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 32188a8516aSOliver Neukum if (err < 0) 32288a8516aSOliver Neukum return -EIO; 3236bc170e4SDaniel Mack 324f0b5e634SDaniel Mack while (timeout-- > 0) { 3253360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3265a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 327f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3285a9a8ecaSStephen Barber validx, idx, buf, val_len); 3295a9a8ecaSStephen Barber if (err >= val_len) { 330f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 331978520b7STakashi Iwai err = 0; 332978520b7STakashi Iwai goto out; 3335a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 3345a9a8ecaSStephen Barber goto out; 335f0b5e634SDaniel Mack } 336f0b5e634SDaniel Mack } 3370ba41d91STakashi Iwai usb_audio_dbg(chip, 3380ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 339978520b7STakashi Iwai request, validx, idx, cval->val_type); 340978520b7STakashi Iwai err = -EINVAL; 341978520b7STakashi Iwai 342978520b7STakashi Iwai out: 34347ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 344978520b7STakashi Iwai return err; 345f0b5e634SDaniel Mack } 346f0b5e634SDaniel Mack 3476bc170e4SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 3486bc170e4SDaniel Mack int validx, int *value_ret) 34923caaf19SDaniel Mack { 3503360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 351447cae58SKirill Marinushkin /* enough space for one range */ 352447cae58SKirill Marinushkin unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; 35323caaf19SDaniel Mack unsigned char *val; 354447cae58SKirill Marinushkin int idx = 0, ret, val_size, size; 35523caaf19SDaniel Mack __u8 bRequest; 35623caaf19SDaniel Mack 357447cae58SKirill Marinushkin val_size = uac2_ctl_value_size(cval->val_type); 358447cae58SKirill Marinushkin 359e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 360e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 361447cae58SKirill Marinushkin size = val_size; 362e8bdb6bbSDaniel Mack } else { 363e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 364447cae58SKirill Marinushkin size = sizeof(__u16) + 3 * val_size; 365e8bdb6bbSDaniel Mack } 366e8bdb6bbSDaniel Mack 367e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 36823caaf19SDaniel Mack 36947ab1545STakashi Iwai ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 37088a8516aSOliver Neukum if (ret) 37188a8516aSOliver Neukum goto error; 37288a8516aSOliver Neukum 3733360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3743d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 37523caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 376978520b7STakashi Iwai validx, idx, buf, size); 37747ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 37823caaf19SDaniel Mack 37923caaf19SDaniel Mack if (ret < 0) { 38088a8516aSOliver Neukum error: 3810ba41d91STakashi Iwai usb_audio_err(chip, 3820ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 383978520b7STakashi Iwai request, validx, idx, cval->val_type); 38423caaf19SDaniel Mack return ret; 38523caaf19SDaniel Mack } 38623caaf19SDaniel Mack 387e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 388e8bdb6bbSDaniel Mack 38923caaf19SDaniel Mack switch (request) { 39023caaf19SDaniel Mack case UAC_GET_CUR: 39123caaf19SDaniel Mack val = buf; 39223caaf19SDaniel Mack break; 39323caaf19SDaniel Mack case UAC_GET_MIN: 39423caaf19SDaniel Mack val = buf + sizeof(__u16); 39523caaf19SDaniel Mack break; 39623caaf19SDaniel Mack case UAC_GET_MAX: 397447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size; 39823caaf19SDaniel Mack break; 39923caaf19SDaniel Mack case UAC_GET_RES: 400447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size * 2; 40123caaf19SDaniel Mack break; 40223caaf19SDaniel Mack default: 40323caaf19SDaniel Mack return -EINVAL; 40423caaf19SDaniel Mack } 40523caaf19SDaniel Mack 406447cae58SKirill Marinushkin *value_ret = convert_signed_value(cval, 407447cae58SKirill Marinushkin snd_usb_combine_bytes(val, val_size)); 40823caaf19SDaniel Mack 40923caaf19SDaniel Mack return 0; 41023caaf19SDaniel Mack } 41123caaf19SDaniel Mack 4126bc170e4SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, 4136bc170e4SDaniel Mack int validx, int *value_ret) 41423caaf19SDaniel Mack { 4159f814105SEldad Zack validx += cval->idx_off; 4169f814105SEldad Zack 4173360b84bSTakashi Iwai return (cval->head.mixer->protocol == UAC_VERSION_1) ? 41823caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 41923caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 42023caaf19SDaniel Mack } 42123caaf19SDaniel Mack 4226bc170e4SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, 4236bc170e4SDaniel Mack int validx, int *value) 424f0b5e634SDaniel Mack { 425f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 426f0b5e634SDaniel Mack } 427f0b5e634SDaniel Mack 428f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 429f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 430f0b5e634SDaniel Mack int channel, int *value) 431f0b5e634SDaniel Mack { 4326bc170e4SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, 4336bc170e4SDaniel Mack (cval->control << 8) | channel, 4346bc170e4SDaniel Mack value); 435f0b5e634SDaniel Mack } 436f0b5e634SDaniel Mack 437eef90451SChris J Arges int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, 438f0b5e634SDaniel Mack int channel, int index, int *value) 439f0b5e634SDaniel Mack { 440f0b5e634SDaniel Mack int err; 441f0b5e634SDaniel Mack 442f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 443f0b5e634SDaniel Mack *value = cval->cache_val[index]; 444f0b5e634SDaniel Mack return 0; 445f0b5e634SDaniel Mack } 446f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 447f0b5e634SDaniel Mack if (err < 0) { 4483360b84bSTakashi Iwai if (!cval->head.mixer->ignore_ctl_error) 4493360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 4500ba41d91STakashi Iwai "cannot get current value for control %d ch %d: err = %d\n", 451f0b5e634SDaniel Mack cval->control, channel, err); 452f0b5e634SDaniel Mack return err; 453f0b5e634SDaniel Mack } 454f0b5e634SDaniel Mack cval->cached |= 1 << channel; 455f0b5e634SDaniel Mack cval->cache_val[index] = *value; 456f0b5e634SDaniel Mack return 0; 457f0b5e634SDaniel Mack } 458f0b5e634SDaniel Mack 459f0b5e634SDaniel Mack /* 460f0b5e634SDaniel Mack * set a mixer value 461f0b5e634SDaniel Mack */ 462f0b5e634SDaniel Mack 463f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 464f0b5e634SDaniel Mack int request, int validx, int value_set) 465f0b5e634SDaniel Mack { 4663360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 467bc18e31cSJulian Scheel unsigned char buf[4]; 468978520b7STakashi Iwai int idx = 0, val_len, err, timeout = 10; 46923caaf19SDaniel Mack 4709f814105SEldad Zack validx += cval->idx_off; 4719f814105SEldad Zack 4729a2fe9b8SRuslan Bilovol 4733360b84bSTakashi Iwai if (cval->head.mixer->protocol == UAC_VERSION_1) { 47423caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 4759a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 476bc18e31cSJulian Scheel val_len = uac2_ctl_value_size(cval->val_type); 47723caaf19SDaniel Mack 47823caaf19SDaniel Mack /* FIXME */ 47923caaf19SDaniel Mack if (request != UAC_SET_CUR) { 4800ba41d91STakashi Iwai usb_audio_dbg(chip, "RANGE setting not yet supported\n"); 48123caaf19SDaniel Mack return -EINVAL; 48223caaf19SDaniel Mack } 48323caaf19SDaniel Mack 48423caaf19SDaniel Mack request = UAC2_CS_CUR; 48523caaf19SDaniel Mack } 486f0b5e634SDaniel Mack 487f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 488f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 489f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 490bc18e31cSJulian Scheel buf[2] = (value_set >> 16) & 0xff; 491bc18e31cSJulian Scheel buf[3] = (value_set >> 24) & 0xff; 49247ab1545STakashi Iwai 49347ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 49488a8516aSOliver Neukum if (err < 0) 49588a8516aSOliver Neukum return -EIO; 49647ab1545STakashi Iwai 497978520b7STakashi Iwai while (timeout-- > 0) { 4983360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 4995a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, 5003d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 501f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 5025a9a8ecaSStephen Barber validx, idx, buf, val_len); 5035a9a8ecaSStephen Barber if (err >= 0) { 504978520b7STakashi Iwai err = 0; 505978520b7STakashi Iwai goto out; 5065a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 5075a9a8ecaSStephen Barber goto out; 50888a8516aSOliver Neukum } 509978520b7STakashi Iwai } 5100ba41d91STakashi Iwai usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 511978520b7STakashi Iwai request, validx, idx, cval->val_type, buf[0], buf[1]); 512978520b7STakashi Iwai err = -EINVAL; 513978520b7STakashi Iwai 514978520b7STakashi Iwai out: 51547ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 516978520b7STakashi Iwai return err; 517f0b5e634SDaniel Mack } 518f0b5e634SDaniel Mack 5196bc170e4SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, 5206bc170e4SDaniel Mack int validx, int value) 521f0b5e634SDaniel Mack { 522f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 523f0b5e634SDaniel Mack } 524f0b5e634SDaniel Mack 525eef90451SChris J Arges int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 526f0b5e634SDaniel Mack int index, int value) 527f0b5e634SDaniel Mack { 528f0b5e634SDaniel Mack int err; 529a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 530a6a33259SDaniel Mack cval->master_readonly : 531a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 532a6a33259SDaniel Mack 533a6a33259SDaniel Mack if (read_only) { 5343360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 5350ba41d91STakashi Iwai "%s(): channel %d of control %d is read_only\n", 536a6a33259SDaniel Mack __func__, channel, cval->control); 537a6a33259SDaniel Mack return 0; 538a6a33259SDaniel Mack } 539a6a33259SDaniel Mack 5406bc170e4SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, 5416bc170e4SDaniel Mack UAC_SET_CUR, (cval->control << 8) | channel, 542f0b5e634SDaniel Mack value); 543f0b5e634SDaniel Mack if (err < 0) 544f0b5e634SDaniel Mack return err; 545f0b5e634SDaniel Mack cval->cached |= 1 << channel; 546f0b5e634SDaniel Mack cval->cache_val[index] = value; 547f0b5e634SDaniel Mack return 0; 548f0b5e634SDaniel Mack } 549f0b5e634SDaniel Mack 550f0b5e634SDaniel Mack /* 551f0b5e634SDaniel Mack * TLV callback for mixer volume controls 552f0b5e634SDaniel Mack */ 553285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 554f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 555f0b5e634SDaniel Mack { 556f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 557f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 558f0b5e634SDaniel Mack 559f0b5e634SDaniel Mack if (size < sizeof(scale)) 560f0b5e634SDaniel Mack return -ENOMEM; 5610f174b35STakashi Iwai if (cval->min_mute) 5620f174b35STakashi Iwai scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; 563f0b5e634SDaniel Mack scale[2] = cval->dBmin; 564f0b5e634SDaniel Mack scale[3] = cval->dBmax; 565f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 566f0b5e634SDaniel Mack return -EFAULT; 567f0b5e634SDaniel Mack return 0; 568f0b5e634SDaniel Mack } 569f0b5e634SDaniel Mack 570f0b5e634SDaniel Mack /* 571f0b5e634SDaniel Mack * parser routines begin here... 572f0b5e634SDaniel Mack */ 573f0b5e634SDaniel Mack 574f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 575f0b5e634SDaniel Mack 576f0b5e634SDaniel Mack 577f0b5e634SDaniel Mack /* 578f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 579f0b5e634SDaniel Mack * used for mixer unit parser 580f0b5e634SDaniel Mack */ 5816bc170e4SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, 5826bc170e4SDaniel Mack int ich, int och, int num_outs) 583f0b5e634SDaniel Mack { 584f0b5e634SDaniel Mack int idx = ich * num_outs + och; 585f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 586f0b5e634SDaniel Mack } 587f0b5e634SDaniel Mack 588f0b5e634SDaniel Mack /* 589f0b5e634SDaniel Mack * add an alsa control element 590f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 591f0b5e634SDaniel Mack * 592f0b5e634SDaniel Mack * if failed, give up and free the control instance. 593f0b5e634SDaniel Mack */ 594f0b5e634SDaniel Mack 5953360b84bSTakashi Iwai int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, 596ef9d5970SDaniel Mack struct snd_kcontrol *kctl) 597f0b5e634SDaniel Mack { 5983360b84bSTakashi Iwai struct usb_mixer_interface *mixer = list->mixer; 599f0b5e634SDaniel Mack int err; 600f0b5e634SDaniel Mack 601ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 602f0b5e634SDaniel Mack kctl->id.index++; 603ef9d5970SDaniel Mack if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { 6046bc170e4SDaniel Mack usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", 6056bc170e4SDaniel Mack err); 606f0b5e634SDaniel Mack return err; 607f0b5e634SDaniel Mack } 6083360b84bSTakashi Iwai list->kctl = kctl; 6093360b84bSTakashi Iwai list->next_id_elem = mixer->id_elems[list->id]; 6103360b84bSTakashi Iwai mixer->id_elems[list->id] = list; 611f0b5e634SDaniel Mack return 0; 612f0b5e634SDaniel Mack } 613f0b5e634SDaniel Mack 614f0b5e634SDaniel Mack /* 615f0b5e634SDaniel Mack * get a terminal name string 616f0b5e634SDaniel Mack */ 617f0b5e634SDaniel Mack 618f0b5e634SDaniel Mack static struct iterm_name_combo { 619f0b5e634SDaniel Mack int type; 620f0b5e634SDaniel Mack char *name; 621f0b5e634SDaniel Mack } iterm_names[] = { 622f0b5e634SDaniel Mack { 0x0300, "Output" }, 623f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 624f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 625f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 626f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 627f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 628f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 629f0b5e634SDaniel Mack { 0x0307, "LFE" }, 630f0b5e634SDaniel Mack { 0x0600, "External In" }, 631f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 632f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 633f0b5e634SDaniel Mack { 0x0603, "Line" }, 634f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 635f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 636f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 637f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 638f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 639f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 640f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 641f0b5e634SDaniel Mack { 0x0703, "CD" }, 642f0b5e634SDaniel Mack { 0x0704, "DAT" }, 643f0b5e634SDaniel Mack { 0x0705, "DCC" }, 644f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 645f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 646f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 647f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 648f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 649f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 650f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 651f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 652f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 653f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 654f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 655f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 656f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 657f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 658f0b5e634SDaniel Mack { 0 }, 659f0b5e634SDaniel Mack }; 660f0b5e634SDaniel Mack 661f0b5e634SDaniel Mack static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 662f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 663f0b5e634SDaniel Mack { 664f0b5e634SDaniel Mack struct iterm_name_combo *names; 66556a23ee5STakashi Iwai int len; 666f0b5e634SDaniel Mack 66756a23ee5STakashi Iwai if (iterm->name) { 66856a23ee5STakashi Iwai len = snd_usb_copy_string_desc(state, iterm->name, 6696bc170e4SDaniel Mack name, maxlen); 67056a23ee5STakashi Iwai if (len) 67156a23ee5STakashi Iwai return len; 67256a23ee5STakashi Iwai } 673f0b5e634SDaniel Mack 674f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 675f0b5e634SDaniel Mack if (iterm->type >> 16) { 676f0b5e634SDaniel Mack if (term_only) 677f0b5e634SDaniel Mack return 0; 678f0b5e634SDaniel Mack switch (iterm->type >> 16) { 679f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 6806bc170e4SDaniel Mack strcpy(name, "Selector"); 6816bc170e4SDaniel Mack return 8; 68269da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 6836bc170e4SDaniel Mack strcpy(name, "Process Unit"); 6846bc170e4SDaniel Mack return 12; 68569da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 6866bc170e4SDaniel Mack strcpy(name, "Ext Unit"); 6876bc170e4SDaniel Mack return 8; 688f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 6896bc170e4SDaniel Mack strcpy(name, "Mixer"); 6906bc170e4SDaniel Mack return 5; 691f0b5e634SDaniel Mack default: 692f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 693f0b5e634SDaniel Mack } 694f0b5e634SDaniel Mack } 695f0b5e634SDaniel Mack 696f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 697f0b5e634SDaniel Mack case 0x0100: 6986bc170e4SDaniel Mack strcpy(name, "PCM"); 6996bc170e4SDaniel Mack return 3; 700f0b5e634SDaniel Mack case 0x0200: 7016bc170e4SDaniel Mack strcpy(name, "Mic"); 7026bc170e4SDaniel Mack return 3; 703f0b5e634SDaniel Mack case 0x0400: 7046bc170e4SDaniel Mack strcpy(name, "Headset"); 7056bc170e4SDaniel Mack return 7; 706f0b5e634SDaniel Mack case 0x0500: 7076bc170e4SDaniel Mack strcpy(name, "Phone"); 7086bc170e4SDaniel Mack return 5; 709f0b5e634SDaniel Mack } 710f0b5e634SDaniel Mack 7116bc170e4SDaniel Mack for (names = iterm_names; names->type; names++) { 712f0b5e634SDaniel Mack if (names->type == iterm->type) { 713f0b5e634SDaniel Mack strcpy(name, names->name); 714f0b5e634SDaniel Mack return strlen(names->name); 715f0b5e634SDaniel Mack } 716f0b5e634SDaniel Mack } 717f0b5e634SDaniel Mack 7186bc170e4SDaniel Mack return 0; 7196bc170e4SDaniel Mack } 720f0b5e634SDaniel Mack 721f0b5e634SDaniel Mack /* 722f0b5e634SDaniel Mack * parse the source unit recursively until it reaches to a terminal 723f0b5e634SDaniel Mack * or a branched unit. 724f0b5e634SDaniel Mack */ 7256bc170e4SDaniel Mack static int check_input_term(struct mixer_build *state, int id, 7266bc170e4SDaniel Mack struct usb_audio_term *term) 727f0b5e634SDaniel Mack { 7289a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 72909414207SDaniel Mack int err; 73023caaf19SDaniel Mack void *p1; 731f0b5e634SDaniel Mack 732f0b5e634SDaniel Mack memset(term, 0, sizeof(*term)); 733f0b5e634SDaniel Mack while ((p1 = find_audio_control_unit(state, id)) != NULL) { 73423caaf19SDaniel Mack unsigned char *hdr = p1; 735f0b5e634SDaniel Mack term->id = id; 7369a2fe9b8SRuslan Bilovol 7379a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) { 73823caaf19SDaniel Mack switch (hdr[2]) { 739f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 7409a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) { 74123caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 7429a2fe9b8SRuslan Bilovol 74323caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 74423caaf19SDaniel Mack term->channels = d->bNrChannels; 74523caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 74623caaf19SDaniel Mack term->name = d->iTerminal; 74723caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 74823caaf19SDaniel Mack struct uac2_input_terminal_descriptor *d = p1; 7499430e547SJulian Scheel 7509430e547SJulian Scheel /* call recursively to verify that the 7519430e547SJulian Scheel * referenced clock entity is valid */ 7529430e547SJulian Scheel err = check_input_term(state, d->bCSourceID, term); 7539430e547SJulian Scheel if (err < 0) 7549430e547SJulian Scheel return err; 7559430e547SJulian Scheel 7569430e547SJulian Scheel /* save input term properties after recursion, 7579430e547SJulian Scheel * to ensure they are not overriden by the 7589430e547SJulian Scheel * recursion calls */ 7599430e547SJulian Scheel term->id = id; 76023caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 76123caaf19SDaniel Mack term->channels = d->bNrChannels; 76223caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 76323caaf19SDaniel Mack term->name = d->iTerminal; 76423caaf19SDaniel Mack } 765f0b5e634SDaniel Mack return 0; 76623caaf19SDaniel Mack case UAC_FEATURE_UNIT: { 76723caaf19SDaniel Mack /* the header is the same for v1 and v2 */ 76823caaf19SDaniel Mack struct uac_feature_unit_descriptor *d = p1; 7699a2fe9b8SRuslan Bilovol 7705e688883SDaniel Mack id = d->bSourceID; 771f0b5e634SDaniel Mack break; /* continue to parse */ 772f0b5e634SDaniel Mack } 77323caaf19SDaniel Mack case UAC_MIXER_UNIT: { 77423caaf19SDaniel Mack struct uac_mixer_unit_descriptor *d = p1; 7759a2fe9b8SRuslan Bilovol 77623caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 77723caaf19SDaniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 7789a2fe9b8SRuslan Bilovol term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol); 77923caaf19SDaniel Mack term->name = uac_mixer_unit_iMixer(d); 780f0b5e634SDaniel Mack return 0; 78123caaf19SDaniel Mack } 78209414207SDaniel Mack case UAC_SELECTOR_UNIT: 78309414207SDaniel Mack case UAC2_CLOCK_SELECTOR: { 78423caaf19SDaniel Mack struct uac_selector_unit_descriptor *d = p1; 78523caaf19SDaniel Mack /* call recursively to retrieve the channel info */ 7864d7b86c9SDaniel Mack err = check_input_term(state, d->baSourceID[0], term); 7874d7b86c9SDaniel Mack if (err < 0) 7884d7b86c9SDaniel Mack return err; 78923caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 79023caaf19SDaniel Mack term->id = id; 79123caaf19SDaniel Mack term->name = uac_selector_unit_iSelector(d); 79223caaf19SDaniel Mack return 0; 79323caaf19SDaniel Mack } 79469da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 7955dae5fd2SEldad Zack case UAC1_EXTENSION_UNIT: 7965dae5fd2SEldad Zack /* UAC2_PROCESSING_UNIT_V2 */ 79761ac5130STorstein Hegge /* UAC2_EFFECT_UNIT */ 79861ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: { 79923caaf19SDaniel Mack struct uac_processing_unit_descriptor *d = p1; 8005dae5fd2SEldad Zack 8019a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_2 && 8025dae5fd2SEldad Zack hdr[2] == UAC2_EFFECT_UNIT) { 8035dae5fd2SEldad Zack /* UAC2/UAC1 unit IDs overlap here in an 8045dae5fd2SEldad Zack * uncompatible way. Ignore this unit for now. 8055dae5fd2SEldad Zack */ 8065dae5fd2SEldad Zack return 0; 8075dae5fd2SEldad Zack } 8085dae5fd2SEldad Zack 80923caaf19SDaniel Mack if (d->bNrInPins) { 81023caaf19SDaniel Mack id = d->baSourceID[0]; 81123caaf19SDaniel Mack break; /* continue to parse */ 81223caaf19SDaniel Mack } 81323caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 81423caaf19SDaniel Mack term->channels = uac_processing_unit_bNrChannels(d); 8159a2fe9b8SRuslan Bilovol term->chconfig = uac_processing_unit_wChannelConfig(d, protocol); 8169a2fe9b8SRuslan Bilovol term->name = uac_processing_unit_iProcessing(d, protocol); 81723caaf19SDaniel Mack return 0; 81823caaf19SDaniel Mack } 81909414207SDaniel Mack case UAC2_CLOCK_SOURCE: { 82009414207SDaniel Mack struct uac_clock_source_descriptor *d = p1; 8219a2fe9b8SRuslan Bilovol 82209414207SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 82309414207SDaniel Mack term->id = id; 82409414207SDaniel Mack term->name = d->iClockSource; 82509414207SDaniel Mack return 0; 82609414207SDaniel Mack } 827f0b5e634SDaniel Mack default: 828f0b5e634SDaniel Mack return -ENODEV; 829f0b5e634SDaniel Mack } 8309a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 8319a2fe9b8SRuslan Bilovol switch (hdr[2]) { 8329a2fe9b8SRuslan Bilovol case UAC_INPUT_TERMINAL: { 8339a2fe9b8SRuslan Bilovol struct uac3_input_terminal_descriptor *d = p1; 8349a2fe9b8SRuslan Bilovol 8359a2fe9b8SRuslan Bilovol /* call recursively to verify that the 8369a2fe9b8SRuslan Bilovol * referenced clock entity is valid */ 8379a2fe9b8SRuslan Bilovol err = check_input_term(state, d->bCSourceID, term); 8389a2fe9b8SRuslan Bilovol if (err < 0) 8399a2fe9b8SRuslan Bilovol return err; 8409a2fe9b8SRuslan Bilovol 8419a2fe9b8SRuslan Bilovol /* save input term properties after recursion, 8429a2fe9b8SRuslan Bilovol * to ensure they are not overriden by the 8439a2fe9b8SRuslan Bilovol * recursion calls */ 8449a2fe9b8SRuslan Bilovol term->id = id; 8459a2fe9b8SRuslan Bilovol term->type = le16_to_cpu(d->wTerminalType); 8469a2fe9b8SRuslan Bilovol 8479a2fe9b8SRuslan Bilovol /* REVISIT: UAC3 IT doesn't have channels/cfg */ 8489a2fe9b8SRuslan Bilovol term->channels = 0; 8499a2fe9b8SRuslan Bilovol term->chconfig = 0; 8509a2fe9b8SRuslan Bilovol 8519a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wTerminalDescrStr); 8529a2fe9b8SRuslan Bilovol return 0; 8539a2fe9b8SRuslan Bilovol } 8549a2fe9b8SRuslan Bilovol case UAC3_FEATURE_UNIT: { 8559a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *d = p1; 8569a2fe9b8SRuslan Bilovol 8579a2fe9b8SRuslan Bilovol id = d->bSourceID; 8589a2fe9b8SRuslan Bilovol break; /* continue to parse */ 8599a2fe9b8SRuslan Bilovol } 8609a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SOURCE: { 8619a2fe9b8SRuslan Bilovol struct uac3_clock_source_descriptor *d = p1; 8629a2fe9b8SRuslan Bilovol 8639a2fe9b8SRuslan Bilovol term->type = d->bDescriptorSubtype << 16; /* virtual type */ 8649a2fe9b8SRuslan Bilovol term->id = id; 8659a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wClockSourceStr); 8669a2fe9b8SRuslan Bilovol return 0; 8679a2fe9b8SRuslan Bilovol } 8689a2fe9b8SRuslan Bilovol default: 8699a2fe9b8SRuslan Bilovol return -ENODEV; 8709a2fe9b8SRuslan Bilovol } 8719a2fe9b8SRuslan Bilovol } 872f0b5e634SDaniel Mack } 873f0b5e634SDaniel Mack return -ENODEV; 874f0b5e634SDaniel Mack } 875f0b5e634SDaniel Mack 876f0b5e634SDaniel Mack /* 877f0b5e634SDaniel Mack * Feature Unit 878f0b5e634SDaniel Mack */ 879f0b5e634SDaniel Mack 880f0b5e634SDaniel Mack /* feature unit control information */ 881f0b5e634SDaniel Mack struct usb_feature_control_info { 88221e9b3e9SAndrew Chant int control; 883f0b5e634SDaniel Mack const char *name; 884bc18e31cSJulian Scheel int type; /* data type for uac1 */ 885bc18e31cSJulian Scheel int type_uac2; /* data type for uac2 if different from uac1, else -1 */ 886f0b5e634SDaniel Mack }; 887f0b5e634SDaniel Mack 888f0b5e634SDaniel Mack static struct usb_feature_control_info audio_feature_info[] = { 88921e9b3e9SAndrew Chant { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 }, 89021e9b3e9SAndrew Chant { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 }, 89121e9b3e9SAndrew Chant { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 }, 89221e9b3e9SAndrew Chant { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 }, 89321e9b3e9SAndrew Chant { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 }, 89421e9b3e9SAndrew Chant { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemented yet */ 89521e9b3e9SAndrew Chant { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, 89621e9b3e9SAndrew Chant { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, 89721e9b3e9SAndrew Chant { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 }, 89821e9b3e9SAndrew Chant { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 }, 8992e0281d1SDaniel Mack /* UAC2 specific */ 90021e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 }, 90121e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 }, 90221e9b3e9SAndrew Chant { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, 903f0b5e634SDaniel Mack }; 904f0b5e634SDaniel Mack 905f0b5e634SDaniel Mack /* private_free callback */ 906eef90451SChris J Arges void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) 907f0b5e634SDaniel Mack { 908f0b5e634SDaniel Mack kfree(kctl->private_data); 909f0b5e634SDaniel Mack kctl->private_data = NULL; 910f0b5e634SDaniel Mack } 911f0b5e634SDaniel Mack 912f0b5e634SDaniel Mack /* 913f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 914f0b5e634SDaniel Mack */ 915f0b5e634SDaniel Mack 916dcaaf9f2STakashi Iwai /* volume control quirks */ 917dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 918dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 919dcaaf9f2STakashi Iwai { 9203360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 9210ba41d91STakashi Iwai switch (chip->usb_id) { 922d50ed624SEldad Zack case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ 923e9a25e04SMatt Gruskin case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ 924d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Duration") == 0) { 925d50ed624SEldad Zack cval->min = 0x0000; 926d50ed624SEldad Zack cval->max = 0xffff; 927d50ed624SEldad Zack cval->res = 0x00e6; 928d50ed624SEldad Zack break; 929d50ed624SEldad Zack } 930d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Volume") == 0 || 931d50ed624SEldad Zack strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 932d50ed624SEldad Zack cval->min = 0x00; 933d50ed624SEldad Zack cval->max = 0xff; 934d50ed624SEldad Zack break; 935d50ed624SEldad Zack } 936d50ed624SEldad Zack if (strstr(kctl->id.name, "Effect Return") != NULL) { 937d50ed624SEldad Zack cval->min = 0xb706; 938d50ed624SEldad Zack cval->max = 0xff7b; 939d50ed624SEldad Zack cval->res = 0x0073; 940d50ed624SEldad Zack break; 941d50ed624SEldad Zack } 942d50ed624SEldad Zack if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 943d50ed624SEldad Zack (strstr(kctl->id.name, "Effect Send") != NULL)) { 944d50ed624SEldad Zack cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ 945d50ed624SEldad Zack cval->max = 0xfcfe; 946d50ed624SEldad Zack cval->res = 0x0073; 947d50ed624SEldad Zack } 948d50ed624SEldad Zack break; 949d50ed624SEldad Zack 950d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 951d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 952d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 9530ba41d91STakashi Iwai usb_audio_info(chip, 9540ba41d91STakashi Iwai "set quirk for FTU Effect Duration\n"); 955d34bf148SFelix Homann cval->min = 0x0000; 956d34bf148SFelix Homann cval->max = 0x7f00; 957d34bf148SFelix Homann cval->res = 0x0100; 958d34bf148SFelix Homann break; 959d34bf148SFelix Homann } 960d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 961d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 9620ba41d91STakashi Iwai usb_audio_info(chip, 9630ba41d91STakashi Iwai "set quirks for FTU Effect Feedback/Volume\n"); 964d34bf148SFelix Homann cval->min = 0x00; 965d34bf148SFelix Homann cval->max = 0x7f; 966d34bf148SFelix Homann break; 967d34bf148SFelix Homann } 968d34bf148SFelix Homann break; 969d34bf148SFelix Homann 970dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 971dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 972dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 973dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 974dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 975dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 976dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 977dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 978dcaaf9f2STakashi Iwai */ 979dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 980dcaaf9f2STakashi Iwai cval->min == -15616) { 9810ba41d91STakashi Iwai usb_audio_info(chip, 982dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 983dcaaf9f2STakashi Iwai cval->max = -256; 984dcaaf9f2STakashi Iwai } 985dcaaf9f2STakashi Iwai break; 986dcaaf9f2STakashi Iwai 987dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 988dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 9890ba41d91STakashi Iwai usb_audio_info(chip, 990dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 991dcaaf9f2STakashi Iwai cval->min = 6080; 992dcaaf9f2STakashi Iwai cval->max = 8768; 993dcaaf9f2STakashi Iwai cval->res = 192; 994dcaaf9f2STakashi Iwai } 995dcaaf9f2STakashi Iwai break; 996dcaaf9f2STakashi Iwai 997e805ca8bSTakashi Iwai case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ 998dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 999dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 100064559311SJason Lee Cragg case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ 100136691e1bSTakashi Iwai case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ 100255c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 100311e7064fSTakashi Iwai case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ 1004140d37deSMaksim A. Boyko case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ 10051ef9f058SWolfram Sang case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ 1006dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 100782ffb6fcSCon Kolivas case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ 1008dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 1009dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 101082ffb6fcSCon Kolivas * Probably there is some logitech magic behind this number --fishor 1011dcaaf9f2STakashi Iwai */ 1012dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 10130ba41d91STakashi Iwai usb_audio_info(chip, 1014dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 1015dcaaf9f2STakashi Iwai cval->res = 384; 1016dcaaf9f2STakashi Iwai } 1017dcaaf9f2STakashi Iwai break; 1018dcaaf9f2STakashi Iwai } 1019dcaaf9f2STakashi Iwai } 1020dcaaf9f2STakashi Iwai 1021f0b5e634SDaniel Mack /* 1022f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 1023f0b5e634SDaniel Mack */ 1024dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 1025dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 1026f0b5e634SDaniel Mack { 1027f0b5e634SDaniel Mack /* for failsafe */ 1028f0b5e634SDaniel Mack cval->min = default_min; 1029f0b5e634SDaniel Mack cval->max = cval->min + 1; 1030f0b5e634SDaniel Mack cval->res = 1; 1031f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 1032f0b5e634SDaniel Mack 1033f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1034f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1035f0b5e634SDaniel Mack cval->initialized = 1; 1036f0b5e634SDaniel Mack } else { 1037f0b5e634SDaniel Mack int minchn = 0; 1038f0b5e634SDaniel Mack if (cval->cmask) { 1039f0b5e634SDaniel Mack int i; 1040f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 1041f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 1042f0b5e634SDaniel Mack minchn = i + 1; 1043f0b5e634SDaniel Mack break; 1044f0b5e634SDaniel Mack } 1045f0b5e634SDaniel Mack } 1046f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 1047f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 10483360b84bSTakashi Iwai usb_audio_err(cval->head.mixer->chip, 10490ba41d91STakashi Iwai "%d:%d: cannot get min/max values for control %d (id %d)\n", 10503360b84bSTakashi Iwai cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), 10513360b84bSTakashi Iwai cval->control, cval->head.id); 1052f0b5e634SDaniel Mack return -EINVAL; 1053f0b5e634SDaniel Mack } 10546bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 10556bc170e4SDaniel Mack (cval->control << 8) | minchn, 10566bc170e4SDaniel Mack &cval->res) < 0) { 1057f0b5e634SDaniel Mack cval->res = 1; 1058f0b5e634SDaniel Mack } else { 1059f0b5e634SDaniel Mack int last_valid_res = cval->res; 1060f0b5e634SDaniel Mack 1061f0b5e634SDaniel Mack while (cval->res > 1) { 1062f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 10636bc170e4SDaniel Mack (cval->control << 8) | minchn, 10646bc170e4SDaniel Mack cval->res / 2) < 0) 1065f0b5e634SDaniel Mack break; 1066f0b5e634SDaniel Mack cval->res /= 2; 1067f0b5e634SDaniel Mack } 10686bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 10696bc170e4SDaniel Mack (cval->control << 8) | minchn, &cval->res) < 0) 1070f0b5e634SDaniel Mack cval->res = last_valid_res; 1071f0b5e634SDaniel Mack } 1072f0b5e634SDaniel Mack if (cval->res == 0) 1073f0b5e634SDaniel Mack cval->res = 1; 1074f0b5e634SDaniel Mack 1075f0b5e634SDaniel Mack /* Additional checks for the proper resolution 1076f0b5e634SDaniel Mack * 1077f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 1078f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 1079f0b5e634SDaniel Mack * to the lower aligned value. 1080f0b5e634SDaniel Mack */ 1081f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 1082f0b5e634SDaniel Mack int last_valid_res = cval->res; 1083f0b5e634SDaniel Mack int saved, test, check; 1084f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &saved); 1085f0b5e634SDaniel Mack for (;;) { 1086f0b5e634SDaniel Mack test = saved; 1087f0b5e634SDaniel Mack if (test < cval->max) 1088f0b5e634SDaniel Mack test += cval->res; 1089f0b5e634SDaniel Mack else 1090f0b5e634SDaniel Mack test -= cval->res; 1091f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 1092eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, test) || 1093f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 1094f0b5e634SDaniel Mack cval->res = last_valid_res; 1095f0b5e634SDaniel Mack break; 1096f0b5e634SDaniel Mack } 1097f0b5e634SDaniel Mack if (test == check) 1098f0b5e634SDaniel Mack break; 1099f0b5e634SDaniel Mack cval->res *= 2; 1100f0b5e634SDaniel Mack } 1101eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, saved); 1102f0b5e634SDaniel Mack } 1103f0b5e634SDaniel Mack 1104f0b5e634SDaniel Mack cval->initialized = 1; 1105f0b5e634SDaniel Mack } 1106f0b5e634SDaniel Mack 1107dcaaf9f2STakashi Iwai if (kctl) 1108dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 1109dcaaf9f2STakashi Iwai 1110f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 1111f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 1112f0b5e634SDaniel Mack */ 1113f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 1114f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 1115f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1116f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 1117f0b5e634SDaniel Mack if (cval->dBmin < 0) 1118f0b5e634SDaniel Mack cval->dBmax = 0; 1119f0b5e634SDaniel Mack else if (cval->dBmin > 0) 1120f0b5e634SDaniel Mack cval->dBmin = 0; 1121f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1122f0b5e634SDaniel Mack /* totally crap, return an error */ 1123f0b5e634SDaniel Mack return -EINVAL; 1124f0b5e634SDaniel Mack } 1125f0b5e634SDaniel Mack } 1126f0b5e634SDaniel Mack 1127f0b5e634SDaniel Mack return 0; 1128f0b5e634SDaniel Mack } 1129f0b5e634SDaniel Mack 1130dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 1131f0b5e634SDaniel Mack 1132f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 11336bc170e4SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, 11346bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 1135f0b5e634SDaniel Mack { 1136f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1137f0b5e634SDaniel Mack 1138f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1139f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 1140f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1141f0b5e634SDaniel Mack else 1142f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1143f0b5e634SDaniel Mack uinfo->count = cval->channels; 1144f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1145f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1146f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1147f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 1148f0b5e634SDaniel Mack } else { 11499fcd0ab1STakashi Iwai if (!cval->initialized) { 1150dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 11519fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 11529fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 11539fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 11549fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 11553360b84bSTakashi Iwai snd_ctl_notify(cval->head.mixer->chip->card, 11569fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 11579fcd0ab1STakashi Iwai &kcontrol->id); 11589fcd0ab1STakashi Iwai } 11599fcd0ab1STakashi Iwai } 1160f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1161f0b5e634SDaniel Mack uinfo->value.integer.max = 1162f0b5e634SDaniel Mack (cval->max - cval->min + cval->res - 1) / cval->res; 1163f0b5e634SDaniel Mack } 1164f0b5e634SDaniel Mack return 0; 1165f0b5e634SDaniel Mack } 1166f0b5e634SDaniel Mack 1167f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 11686bc170e4SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, 11696bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1170f0b5e634SDaniel Mack { 1171f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1172f0b5e634SDaniel Mack int c, cnt, val, err; 1173f0b5e634SDaniel Mack 1174f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1175f0b5e634SDaniel Mack if (cval->cmask) { 1176f0b5e634SDaniel Mack cnt = 0; 1177f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1178f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1179f0b5e634SDaniel Mack continue; 1180eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); 1181f0b5e634SDaniel Mack if (err < 0) 11825aeee342STakashi Iwai return filter_error(cval, err); 1183f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1184f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 1185f0b5e634SDaniel Mack cnt++; 1186f0b5e634SDaniel Mack } 1187f0b5e634SDaniel Mack return 0; 1188f0b5e634SDaniel Mack } else { 1189f0b5e634SDaniel Mack /* master channel */ 1190eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 1191f0b5e634SDaniel Mack if (err < 0) 11925aeee342STakashi Iwai return filter_error(cval, err); 1193f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1194f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1195f0b5e634SDaniel Mack } 1196f0b5e634SDaniel Mack return 0; 1197f0b5e634SDaniel Mack } 1198f0b5e634SDaniel Mack 1199f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 12006bc170e4SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, 12016bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1202f0b5e634SDaniel Mack { 1203f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1204f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1205f0b5e634SDaniel Mack int changed = 0; 1206f0b5e634SDaniel Mack 1207f0b5e634SDaniel Mack if (cval->cmask) { 1208f0b5e634SDaniel Mack cnt = 0; 1209f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1210f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1211f0b5e634SDaniel Mack continue; 1212eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); 1213f0b5e634SDaniel Mack if (err < 0) 12145aeee342STakashi Iwai return filter_error(cval, err); 1215f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1216f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1217f0b5e634SDaniel Mack if (oval != val) { 1218eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); 1219f0b5e634SDaniel Mack changed = 1; 1220f0b5e634SDaniel Mack } 1221f0b5e634SDaniel Mack cnt++; 1222f0b5e634SDaniel Mack } 1223f0b5e634SDaniel Mack } else { 1224f0b5e634SDaniel Mack /* master channel */ 1225eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); 1226f0b5e634SDaniel Mack if (err < 0) 12275aeee342STakashi Iwai return filter_error(cval, err); 1228f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1229f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1230f0b5e634SDaniel Mack if (val != oval) { 1231eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, 0, 0, val); 1232f0b5e634SDaniel Mack changed = 1; 1233f0b5e634SDaniel Mack } 1234f0b5e634SDaniel Mack } 1235f0b5e634SDaniel Mack return changed; 1236f0b5e634SDaniel Mack } 1237f0b5e634SDaniel Mack 1238f0b5e634SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl = { 1239f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1240f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1241f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1242f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1243f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1244f0b5e634SDaniel Mack }; 1245f0b5e634SDaniel Mack 124623caaf19SDaniel Mack /* the read-only variant */ 12478fdaebbbSBhumika Goyal static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 124823caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 124923caaf19SDaniel Mack .name = "", /* will be filled later manually */ 125023caaf19SDaniel Mack .info = mixer_ctl_feature_info, 125123caaf19SDaniel Mack .get = mixer_ctl_feature_get, 125223caaf19SDaniel Mack .put = NULL, 125323caaf19SDaniel Mack }; 125423caaf19SDaniel Mack 12556bc170e4SDaniel Mack /* 12566bc170e4SDaniel Mack * This symbol is exported in order to allow the mixer quirks to 12576bc170e4SDaniel Mack * hook up to the standard feature unit control mechanism 12586bc170e4SDaniel Mack */ 12599e38658fSDaniel Mack struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1260f0b5e634SDaniel Mack 1261f0b5e634SDaniel Mack /* 1262f0b5e634SDaniel Mack * build a feature control 1263f0b5e634SDaniel Mack */ 1264f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1265f0b5e634SDaniel Mack { 1266f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1267f0b5e634SDaniel Mack } 1268f0b5e634SDaniel Mack 12696bc170e4SDaniel Mack /* 12706bc170e4SDaniel Mack * A lot of headsets/headphones have a "Speaker" mixer. Make sure we 12716bc170e4SDaniel Mack * rename it to "Headphone". We determine if something is a headphone 12726bc170e4SDaniel Mack * similar to how udev determines form factor. 12736bc170e4SDaniel Mack */ 12749b4ef977SDavid Henningsson static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, 12759b4ef977SDavid Henningsson struct snd_card *card) 12769b4ef977SDavid Henningsson { 12779b4ef977SDavid Henningsson const char *names_to_check[] = { 12789b4ef977SDavid Henningsson "Headset", "headset", "Headphone", "headphone", NULL}; 12799b4ef977SDavid Henningsson const char **s; 1280e0f17c75SPeter Senna Tschudin bool found = false; 12819b4ef977SDavid Henningsson 12829b4ef977SDavid Henningsson if (strcmp("Speaker", kctl->id.name)) 12839b4ef977SDavid Henningsson return; 12849b4ef977SDavid Henningsson 12859b4ef977SDavid Henningsson for (s = names_to_check; *s; s++) 12869b4ef977SDavid Henningsson if (strstr(card->shortname, *s)) { 1287e0f17c75SPeter Senna Tschudin found = true; 12889b4ef977SDavid Henningsson break; 12899b4ef977SDavid Henningsson } 12909b4ef977SDavid Henningsson 12919b4ef977SDavid Henningsson if (!found) 12929b4ef977SDavid Henningsson return; 12939b4ef977SDavid Henningsson 12949b4ef977SDavid Henningsson strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); 12959b4ef977SDavid Henningsson } 12969b4ef977SDavid Henningsson 129721e9b3e9SAndrew Chant static struct usb_feature_control_info *get_feature_control_info(int control) 129821e9b3e9SAndrew Chant { 129921e9b3e9SAndrew Chant int i; 130021e9b3e9SAndrew Chant 130121e9b3e9SAndrew Chant for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) { 130221e9b3e9SAndrew Chant if (audio_feature_info[i].control == control) 130321e9b3e9SAndrew Chant return &audio_feature_info[i]; 130421e9b3e9SAndrew Chant } 130521e9b3e9SAndrew Chant return NULL; 130621e9b3e9SAndrew Chant } 130721e9b3e9SAndrew Chant 130899fc8645SDaniel Mack static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 1309f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 131023caaf19SDaniel Mack struct usb_audio_term *iterm, int unitid, 1311a6a33259SDaniel Mack int readonly_mask) 1312f0b5e634SDaniel Mack { 131399fc8645SDaniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 1314bc18e31cSJulian Scheel struct usb_feature_control_info *ctl_info; 1315f0b5e634SDaniel Mack unsigned int len = 0; 1316f0b5e634SDaniel Mack int mapped_name = 0; 131799fc8645SDaniel Mack int nameid = uac_feature_unit_iFeature(desc); 1318f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1319f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1320f0b5e634SDaniel Mack const struct usbmix_name_map *map; 132180acefffSAlexey Fisher unsigned int range; 1322f0b5e634SDaniel Mack 132365f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1324f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1325f0b5e634SDaniel Mack return; 1326f0b5e634SDaniel Mack } 1327f0b5e634SDaniel Mack 1328f0b5e634SDaniel Mack map = find_map(state, unitid, control); 1329f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1330f0b5e634SDaniel Mack return; 1331f0b5e634SDaniel Mack 1332f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1333a860d95fSDaniel Mack if (!cval) 1334f0b5e634SDaniel Mack return; 13353360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 1336f0b5e634SDaniel Mack cval->control = control; 1337f0b5e634SDaniel Mack cval->cmask = ctl_mask; 133821e9b3e9SAndrew Chant 133921e9b3e9SAndrew Chant ctl_info = get_feature_control_info(control); 134021e9b3e9SAndrew Chant if (!ctl_info) 134121e9b3e9SAndrew Chant return; 1342bc18e31cSJulian Scheel if (state->mixer->protocol == UAC_VERSION_1) 1343bc18e31cSJulian Scheel cval->val_type = ctl_info->type; 1344bc18e31cSJulian Scheel else /* UAC_VERSION_2 */ 1345bc18e31cSJulian Scheel cval->val_type = ctl_info->type_uac2 >= 0 ? 1346bc18e31cSJulian Scheel ctl_info->type_uac2 : ctl_info->type; 1347bc18e31cSJulian Scheel 1348a6a33259SDaniel Mack if (ctl_mask == 0) { 1349f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1350a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1351a6a33259SDaniel Mack } else { 1352f0b5e634SDaniel Mack int i, c = 0; 1353f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1354f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1355f0b5e634SDaniel Mack c++; 1356f0b5e634SDaniel Mack cval->channels = c; 1357a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1358f0b5e634SDaniel Mack } 1359f0b5e634SDaniel Mack 13606bc170e4SDaniel Mack /* 13616bc170e4SDaniel Mack * If all channels in the mask are marked read-only, make the control 1362eef90451SChris J Arges * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't 13636bc170e4SDaniel Mack * issue write commands to read-only channels. 13646bc170e4SDaniel Mack */ 1365a6a33259SDaniel Mack if (cval->channels == readonly_mask) 136623caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 136723caaf19SDaniel Mack else 1368f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 136923caaf19SDaniel Mack 1370f0b5e634SDaniel Mack if (!kctl) { 13710ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 1372f0b5e634SDaniel Mack kfree(cval); 1373f0b5e634SDaniel Mack return; 1374f0b5e634SDaniel Mack } 1375eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1376f0b5e634SDaniel Mack 1377f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1378f0b5e634SDaniel Mack mapped_name = len != 0; 1379f0b5e634SDaniel Mack if (!len && nameid) 1380f0b5e634SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, 1381f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1382f0b5e634SDaniel Mack 1383f0b5e634SDaniel Mack switch (control) { 138465f25da4SDaniel Mack case UAC_FU_MUTE: 138565f25da4SDaniel Mack case UAC_FU_VOLUME: 13866bc170e4SDaniel Mack /* 13876bc170e4SDaniel Mack * determine the control name. the rule is: 1388f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1389f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1390f0b5e634SDaniel Mack * of terminal type. 1391f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1392f0b5e634SDaniel Mack * - otherwise, anonymous name. 1393f0b5e634SDaniel Mack */ 1394f0b5e634SDaniel Mack if (!len) { 13956bc170e4SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, 13966bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1397f0b5e634SDaniel Mack if (!len) 13986bc170e4SDaniel Mack len = get_term_name(state, &state->oterm, 13996bc170e4SDaniel Mack kctl->id.name, 14006bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1401f0b5e634SDaniel Mack if (!len) 140249fd46d2SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1403f0b5e634SDaniel Mack "Feature %d", unitid); 1404f0b5e634SDaniel Mack } 14059b4ef977SDavid Henningsson 14069b4ef977SDavid Henningsson if (!mapped_name) 14079b4ef977SDavid Henningsson check_no_speaker_on_headset(kctl, state->mixer->chip->card); 14089b4ef977SDavid Henningsson 14096bc170e4SDaniel Mack /* 14106bc170e4SDaniel Mack * determine the stream direction: 1411f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1412f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1413f0b5e634SDaniel Mack */ 1414f0b5e634SDaniel Mack if (!mapped_name && !(state->oterm.type >> 16)) { 14156bc170e4SDaniel Mack if ((state->oterm.type & 0xff00) == 0x0100) 141649fd46d2SDaniel Mack append_ctl_name(kctl, " Capture"); 14176bc170e4SDaniel Mack else 141849fd46d2SDaniel Mack append_ctl_name(kctl, " Playback"); 1419f0b5e634SDaniel Mack } 142065f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1421f0b5e634SDaniel Mack " Switch" : " Volume"); 1422e182534dSTakashi Iwai break; 1423e182534dSTakashi Iwai default: 1424e182534dSTakashi Iwai if (!len) 1425e182534dSTakashi Iwai strlcpy(kctl->id.name, audio_feature_info[control-1].name, 1426e182534dSTakashi Iwai sizeof(kctl->id.name)); 1427e182534dSTakashi Iwai break; 1428e182534dSTakashi Iwai } 1429e182534dSTakashi Iwai 1430e182534dSTakashi Iwai /* get min/max values */ 1431e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1432e182534dSTakashi Iwai 143365f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 143459bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 143538b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1436285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1437f0b5e634SDaniel Mack kctl->vd[0].access |= 1438f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1439f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 144059bb7f0eSTakashi Iwai } 1441f0b5e634SDaniel Mack } 1442f0b5e634SDaniel Mack 144342e3121dSAnssi Hannula snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl); 144442e3121dSAnssi Hannula 144580acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 14466bc170e4SDaniel Mack /* 14476bc170e4SDaniel Mack * Are there devices with volume range more than 255? I use a bit more 144880acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 144980acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 145080acefffSAlexey Fisher */ 145180acefffSAlexey Fisher if (range > 384) { 14526bc170e4SDaniel Mack usb_audio_warn(state->chip, 145382c1cf0aSMichał Mirosław "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", 145480acefffSAlexey Fisher range); 145582c1cf0aSMichał Mirosław usb_audio_warn(state->chip, 145682c1cf0aSMichał Mirosław "[%d] FU [%s] ch = %d, val = %d/%d/%d", 14573360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 145880acefffSAlexey Fisher cval->min, cval->max, cval->res); 145980acefffSAlexey Fisher } 146080acefffSAlexey Fisher 14610ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 14623360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 14636bc170e4SDaniel Mack cval->min, cval->max, cval->res); 14643360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1465f0b5e634SDaniel Mack } 1466f0b5e634SDaniel Mack 1467cddaafb9SDaniel Mack static int parse_clock_source_unit(struct mixer_build *state, int unitid, 1468cddaafb9SDaniel Mack void *_ftr) 1469cddaafb9SDaniel Mack { 1470cddaafb9SDaniel Mack struct uac_clock_source_descriptor *hdr = _ftr; 1471cddaafb9SDaniel Mack struct usb_mixer_elem_info *cval; 1472cddaafb9SDaniel Mack struct snd_kcontrol *kctl; 1473cddaafb9SDaniel Mack char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 1474cddaafb9SDaniel Mack int ret; 1475cddaafb9SDaniel Mack 1476cddaafb9SDaniel Mack if (state->mixer->protocol != UAC_VERSION_2) 1477cddaafb9SDaniel Mack return -EINVAL; 1478cddaafb9SDaniel Mack 1479cddaafb9SDaniel Mack if (hdr->bLength != sizeof(*hdr)) { 1480cddaafb9SDaniel Mack usb_audio_dbg(state->chip, 1481cddaafb9SDaniel Mack "Bogus clock source descriptor length of %d, ignoring.\n", 1482cddaafb9SDaniel Mack hdr->bLength); 1483cddaafb9SDaniel Mack return 0; 1484cddaafb9SDaniel Mack } 1485cddaafb9SDaniel Mack 1486cddaafb9SDaniel Mack /* 1487cddaafb9SDaniel Mack * The only property of this unit we are interested in is the 1488cddaafb9SDaniel Mack * clock source validity. If that isn't readable, just bail out. 1489cddaafb9SDaniel Mack */ 14909a2fe9b8SRuslan Bilovol if (!uac_v2v3_control_is_readable(hdr->bmControls, 149121e9b3e9SAndrew Chant UAC2_CS_CONTROL_CLOCK_VALID)) 1492cddaafb9SDaniel Mack return 0; 1493cddaafb9SDaniel Mack 1494cddaafb9SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1495cddaafb9SDaniel Mack if (!cval) 1496cddaafb9SDaniel Mack return -ENOMEM; 1497cddaafb9SDaniel Mack 1498cddaafb9SDaniel Mack snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); 1499cddaafb9SDaniel Mack 1500cddaafb9SDaniel Mack cval->min = 0; 1501cddaafb9SDaniel Mack cval->max = 1; 1502cddaafb9SDaniel Mack cval->channels = 1; 1503cddaafb9SDaniel Mack cval->val_type = USB_MIXER_BOOLEAN; 1504cddaafb9SDaniel Mack cval->control = UAC2_CS_CONTROL_CLOCK_VALID; 1505cddaafb9SDaniel Mack 15069a2fe9b8SRuslan Bilovol if (uac_v2v3_control_is_writeable(hdr->bmControls, 150721e9b3e9SAndrew Chant UAC2_CS_CONTROL_CLOCK_VALID)) 1508cddaafb9SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1509cddaafb9SDaniel Mack else { 1510cddaafb9SDaniel Mack cval->master_readonly = 1; 1511cddaafb9SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 1512cddaafb9SDaniel Mack } 1513cddaafb9SDaniel Mack 1514cddaafb9SDaniel Mack if (!kctl) { 1515cddaafb9SDaniel Mack kfree(cval); 1516cddaafb9SDaniel Mack return -ENOMEM; 1517cddaafb9SDaniel Mack } 1518cddaafb9SDaniel Mack 1519cddaafb9SDaniel Mack kctl->private_free = snd_usb_mixer_elem_free; 1520cddaafb9SDaniel Mack ret = snd_usb_copy_string_desc(state, hdr->iClockSource, 1521cddaafb9SDaniel Mack name, sizeof(name)); 1522cddaafb9SDaniel Mack if (ret > 0) 1523cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1524cddaafb9SDaniel Mack "%s Validity", name); 1525cddaafb9SDaniel Mack else 1526cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1527cddaafb9SDaniel Mack "Clock Source %d Validity", hdr->bClockID); 1528cddaafb9SDaniel Mack 1529cddaafb9SDaniel Mack return snd_usb_mixer_add_control(&cval->head, kctl); 1530cddaafb9SDaniel Mack } 1531cddaafb9SDaniel Mack 1532f0b5e634SDaniel Mack /* 1533f0b5e634SDaniel Mack * parse a feature unit 1534f0b5e634SDaniel Mack * 153525985edcSLucas De Marchi * most of controls are defined here. 1536f0b5e634SDaniel Mack */ 15376bc170e4SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, 15386bc170e4SDaniel Mack void *_ftr) 1539f0b5e634SDaniel Mack { 1540f0b5e634SDaniel Mack int channels, i, j; 1541f0b5e634SDaniel Mack struct usb_audio_term iterm; 1542f0b5e634SDaniel Mack unsigned int master_bits, first_ch_bits; 1543f0b5e634SDaniel Mack int err, csize; 154423caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 154523caaf19SDaniel Mack __u8 *bmaControls; 1546f0b5e634SDaniel Mack 154723caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1548d937cd67STakashi Iwai if (hdr->bLength < 7) { 1549d937cd67STakashi Iwai usb_audio_err(state->chip, 1550d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1551d937cd67STakashi Iwai unitid); 1552d937cd67STakashi Iwai return -EINVAL; 1553d937cd67STakashi Iwai } 155423caaf19SDaniel Mack csize = hdr->bControlSize; 15553c02a6d9STakashi Iwai if (!csize) { 15560ba41d91STakashi Iwai usb_audio_dbg(state->chip, 15573c02a6d9STakashi Iwai "unit %u: invalid bControlSize == 0\n", 15580ba41d91STakashi Iwai unitid); 155960c961a9SNicolai Krakowiak return -EINVAL; 156060c961a9SNicolai Krakowiak } 156123caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 156223caaf19SDaniel Mack bmaControls = hdr->bmaControls; 1563d56268fbSClemens Ladisch if (hdr->bLength < 7 + csize) { 15640ba41d91STakashi Iwai usb_audio_err(state->chip, 15650ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1566d56268fbSClemens Ladisch unitid); 1567d56268fbSClemens Ladisch return -EINVAL; 1568d56268fbSClemens Ladisch } 15699a2fe9b8SRuslan Bilovol } else if (state->mixer->protocol == UAC_VERSION_2) { 157023caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 1571d937cd67STakashi Iwai if (hdr->bLength < 6) { 1572d937cd67STakashi Iwai usb_audio_err(state->chip, 1573d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1574d937cd67STakashi Iwai unitid); 1575d937cd67STakashi Iwai return -EINVAL; 1576d937cd67STakashi Iwai } 157723caaf19SDaniel Mack csize = 4; 1578e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 157923caaf19SDaniel Mack bmaControls = ftr->bmaControls; 1580d56268fbSClemens Ladisch if (hdr->bLength < 6 + csize) { 15810ba41d91STakashi Iwai usb_audio_err(state->chip, 15820ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1583d56268fbSClemens Ladisch unitid); 1584f0b5e634SDaniel Mack return -EINVAL; 1585f0b5e634SDaniel Mack } 15869a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 15879a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *ftr = _ftr; 15889a2fe9b8SRuslan Bilovol 15899a2fe9b8SRuslan Bilovol if (hdr->bLength < 7) { 15909a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 15919a2fe9b8SRuslan Bilovol "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n", 15929a2fe9b8SRuslan Bilovol unitid); 15939a2fe9b8SRuslan Bilovol return -EINVAL; 15949a2fe9b8SRuslan Bilovol } 15959a2fe9b8SRuslan Bilovol csize = 4; 15969a2fe9b8SRuslan Bilovol channels = (ftr->bLength - 7) / 4 - 1; 15979a2fe9b8SRuslan Bilovol bmaControls = ftr->bmaControls; 15989a2fe9b8SRuslan Bilovol if (hdr->bLength < 7 + csize) { 15999a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 16009a2fe9b8SRuslan Bilovol "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n", 16019a2fe9b8SRuslan Bilovol unitid); 16029a2fe9b8SRuslan Bilovol return -EINVAL; 16039a2fe9b8SRuslan Bilovol } 1604d56268fbSClemens Ladisch } 1605f0b5e634SDaniel Mack 1606f0b5e634SDaniel Mack /* parse the source unit */ 160723caaf19SDaniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 1608f0b5e634SDaniel Mack return err; 1609f0b5e634SDaniel Mack 1610f0b5e634SDaniel Mack /* determine the input source type and name */ 16114d7b86c9SDaniel Mack err = check_input_term(state, hdr->bSourceID, &iterm); 16124d7b86c9SDaniel Mack if (err < 0) 16134d7b86c9SDaniel Mack return err; 1614f0b5e634SDaniel Mack 161523caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 1616f0b5e634SDaniel Mack /* master configuration quirks */ 1617f0b5e634SDaniel Mack switch (state->chip->usb_id) { 1618f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 16190ba41d91STakashi Iwai usb_audio_info(state->chip, 1620f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 1621f0b5e634SDaniel Mack /* disable non-functional volume control */ 162265f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 1623f0b5e634SDaniel Mack break; 1624c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 16250ba41d91STakashi Iwai usb_audio_info(state->chip, 1626c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 1627c1051439SDavid Henningsson /* disable non-functional volume control */ 1628c1051439SDavid Henningsson channels = 0; 1629c1051439SDavid Henningsson break; 1630c1051439SDavid Henningsson 1631f0b5e634SDaniel Mack } 1632f0b5e634SDaniel Mack if (channels > 0) 163323caaf19SDaniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 1634f0b5e634SDaniel Mack else 1635f0b5e634SDaniel Mack first_ch_bits = 0; 163623caaf19SDaniel Mack 163723caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1638f0b5e634SDaniel Mack /* check all control types */ 1639f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 1640f0b5e634SDaniel Mack unsigned int ch_bits = 0; 164121e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 164221e9b3e9SAndrew Chant 1643f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 16446bc170e4SDaniel Mack unsigned int mask; 16456bc170e4SDaniel Mack 16466bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 16476bc170e4SDaniel Mack csize * (j+1), csize); 1648f0b5e634SDaniel Mack if (mask & (1 << i)) 1649f0b5e634SDaniel Mack ch_bits |= (1 << j); 1650f0b5e634SDaniel Mack } 165123caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 16526bc170e4SDaniel Mack 16536bc170e4SDaniel Mack /* 16546bc170e4SDaniel Mack * The first channel must be set 16556bc170e4SDaniel Mack * (for ease of programming). 16566bc170e4SDaniel Mack */ 16576bc170e4SDaniel Mack if (ch_bits & 1) 165821e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 16596bc170e4SDaniel Mack &iterm, unitid, 0); 1660f0b5e634SDaniel Mack if (master_bits & (1 << i)) 166121e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, 0, control, 166221e9b3e9SAndrew Chant &iterm, unitid, 0); 166323caaf19SDaniel Mack } 16649a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 1665d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 166623caaf19SDaniel Mack unsigned int ch_bits = 0; 166723caaf19SDaniel Mack unsigned int ch_read_only = 0; 166821e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 166923caaf19SDaniel Mack 167023caaf19SDaniel Mack for (j = 0; j < channels; j++) { 16716bc170e4SDaniel Mack unsigned int mask; 16726bc170e4SDaniel Mack 16736bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 16746bc170e4SDaniel Mack csize * (j+1), csize); 167521e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(mask, control)) { 167623caaf19SDaniel Mack ch_bits |= (1 << j); 167721e9b3e9SAndrew Chant if (!uac_v2v3_control_is_writeable(mask, control)) 167823caaf19SDaniel Mack ch_read_only |= (1 << j); 167923caaf19SDaniel Mack } 168023caaf19SDaniel Mack } 168123caaf19SDaniel Mack 16826bc170e4SDaniel Mack /* 16836bc170e4SDaniel Mack * NOTE: build_feature_ctl() will mark the control 16846bc170e4SDaniel Mack * read-only if all channels are marked read-only in 16856bc170e4SDaniel Mack * the descriptors. Otherwise, the control will be 16866bc170e4SDaniel Mack * reported as writeable, but the driver will not 16876bc170e4SDaniel Mack * actually issue a write command for read-only 16886bc170e4SDaniel Mack * channels. 16896bc170e4SDaniel Mack */ 16906bc170e4SDaniel Mack 16916bc170e4SDaniel Mack /* 16926bc170e4SDaniel Mack * The first channel must be set 16936bc170e4SDaniel Mack * (for ease of programming). 16946bc170e4SDaniel Mack */ 16956bc170e4SDaniel Mack if (ch_bits & 1) 169621e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 16976bc170e4SDaniel Mack &iterm, unitid, ch_read_only); 169821e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(master_bits, control)) 169923caaf19SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 170021e9b3e9SAndrew Chant !uac_v2v3_control_is_writeable(master_bits, 170121e9b3e9SAndrew Chant control)); 170223caaf19SDaniel Mack } 1703f0b5e634SDaniel Mack } 1704f0b5e634SDaniel Mack 1705f0b5e634SDaniel Mack return 0; 1706f0b5e634SDaniel Mack } 1707f0b5e634SDaniel Mack 1708f0b5e634SDaniel Mack /* 1709f0b5e634SDaniel Mack * Mixer Unit 1710f0b5e634SDaniel Mack */ 1711f0b5e634SDaniel Mack 1712f0b5e634SDaniel Mack /* 1713f0b5e634SDaniel Mack * build a mixer unit control 1714f0b5e634SDaniel Mack * 1715f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 1716f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 1717f0b5e634SDaniel Mack */ 171899fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 171999fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 1720f0b5e634SDaniel Mack int in_pin, int in_ch, int unitid, 1721f0b5e634SDaniel Mack struct usb_audio_term *iterm) 1722f0b5e634SDaniel Mack { 1723f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 172499fc8645SDaniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 1725f0b5e634SDaniel Mack unsigned int i, len; 1726f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1727f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1728f0b5e634SDaniel Mack 1729f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 1730f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1731f0b5e634SDaniel Mack return; 1732f0b5e634SDaniel Mack 1733f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1734f0b5e634SDaniel Mack if (!cval) 1735f0b5e634SDaniel Mack return; 1736f0b5e634SDaniel Mack 17373360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 1738f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 1739f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 1740f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 17416bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); 17426bc170e4SDaniel Mack 17436bc170e4SDaniel Mack if (check_matrix_bitmap(c, in_ch, i, num_outs)) { 1744f0b5e634SDaniel Mack cval->cmask |= (1 << i); 1745f0b5e634SDaniel Mack cval->channels++; 1746f0b5e634SDaniel Mack } 1747f0b5e634SDaniel Mack } 1748f0b5e634SDaniel Mack 1749f0b5e634SDaniel Mack /* get min/max values */ 1750f0b5e634SDaniel Mack get_min_max(cval, 0); 1751f0b5e634SDaniel Mack 1752f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1753f0b5e634SDaniel Mack if (!kctl) { 17540ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 1755f0b5e634SDaniel Mack kfree(cval); 1756f0b5e634SDaniel Mack return; 1757f0b5e634SDaniel Mack } 1758eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1759f0b5e634SDaniel Mack 1760f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1761f0b5e634SDaniel Mack if (!len) 17626bc170e4SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, 17636bc170e4SDaniel Mack sizeof(kctl->id.name), 0); 1764f0b5e634SDaniel Mack if (!len) 1765f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 1766f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 1767f0b5e634SDaniel Mack 17680ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", 17693360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); 17703360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1771f0b5e634SDaniel Mack } 1772f0b5e634SDaniel Mack 1773f0b5e634SDaniel Mack /* 1774f0b5e634SDaniel Mack * parse a mixer unit 1775f0b5e634SDaniel Mack */ 17766bc170e4SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, 17776bc170e4SDaniel Mack void *raw_desc) 1778f0b5e634SDaniel Mack { 177999fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 1780f0b5e634SDaniel Mack struct usb_audio_term iterm; 1781f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 1782f0b5e634SDaniel Mack int pin, ich, err; 1783f0b5e634SDaniel Mack 17846bc170e4SDaniel Mack if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || 17856bc170e4SDaniel Mack !(num_outs = uac_mixer_unit_bNrChannels(desc))) { 17866bc170e4SDaniel Mack usb_audio_err(state->chip, 17876bc170e4SDaniel Mack "invalid MIXER UNIT descriptor %d\n", 17886bc170e4SDaniel Mack unitid); 1789f0b5e634SDaniel Mack return -EINVAL; 1790f0b5e634SDaniel Mack } 1791f0b5e634SDaniel Mack 1792f0b5e634SDaniel Mack num_ins = 0; 1793f0b5e634SDaniel Mack ich = 0; 1794f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 179599fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 1796f0b5e634SDaniel Mack if (err < 0) 1797284a8dd6SMark Hills continue; 1798ea114fc2SClemens Ladisch /* no bmControls field (e.g. Maya44) -> ignore */ 1799ea114fc2SClemens Ladisch if (desc->bLength <= 10 + input_pins) 1800ea114fc2SClemens Ladisch continue; 180199fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 1802f0b5e634SDaniel Mack if (err < 0) 1803f0b5e634SDaniel Mack return err; 1804f0b5e634SDaniel Mack num_ins += iterm.channels; 18056bc170e4SDaniel Mack for (; ich < num_ins; ich++) { 1806f0b5e634SDaniel Mack int och, ich_has_controls = 0; 1807f0b5e634SDaniel Mack 18086bc170e4SDaniel Mack for (och = 0; och < num_outs; och++) { 18096bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, 18106bc170e4SDaniel Mack state->mixer->protocol); 18116bc170e4SDaniel Mack 18126bc170e4SDaniel Mack if (check_matrix_bitmap(c, ich, och, num_outs)) { 1813f0b5e634SDaniel Mack ich_has_controls = 1; 1814f0b5e634SDaniel Mack break; 1815f0b5e634SDaniel Mack } 1816f0b5e634SDaniel Mack } 1817f0b5e634SDaniel Mack if (ich_has_controls) 1818f0b5e634SDaniel Mack build_mixer_unit_ctl(state, desc, pin, ich, 1819f0b5e634SDaniel Mack unitid, &iterm); 1820f0b5e634SDaniel Mack } 1821f0b5e634SDaniel Mack } 1822f0b5e634SDaniel Mack return 0; 1823f0b5e634SDaniel Mack } 1824f0b5e634SDaniel Mack 1825f0b5e634SDaniel Mack /* 1826f0b5e634SDaniel Mack * Processing Unit / Extension Unit 1827f0b5e634SDaniel Mack */ 1828f0b5e634SDaniel Mack 1829f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 18306bc170e4SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, 18316bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1832f0b5e634SDaniel Mack { 1833f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1834f0b5e634SDaniel Mack int err, val; 1835f0b5e634SDaniel Mack 1836f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 18375aeee342STakashi Iwai if (err < 0) { 1838f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 18395aeee342STakashi Iwai return filter_error(cval, err); 1840f0b5e634SDaniel Mack } 1841f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1842f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1843f0b5e634SDaniel Mack return 0; 1844f0b5e634SDaniel Mack } 1845f0b5e634SDaniel Mack 1846f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 18476bc170e4SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, 18486bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1849f0b5e634SDaniel Mack { 1850f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1851f0b5e634SDaniel Mack int val, oval, err; 1852f0b5e634SDaniel Mack 1853f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 18545aeee342STakashi Iwai if (err < 0) 18555aeee342STakashi Iwai return filter_error(cval, err); 1856f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1857f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1858f0b5e634SDaniel Mack if (val != oval) { 1859f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 1860f0b5e634SDaniel Mack return 1; 1861f0b5e634SDaniel Mack } 1862f0b5e634SDaniel Mack return 0; 1863f0b5e634SDaniel Mack } 1864f0b5e634SDaniel Mack 1865f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 18668fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_procunit_ctl = { 1867f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1868f0b5e634SDaniel Mack .name = "", /* will be filled later */ 1869f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1870f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 1871f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 1872f0b5e634SDaniel Mack }; 1873f0b5e634SDaniel Mack 1874f0b5e634SDaniel Mack /* 1875f0b5e634SDaniel Mack * predefined data for processing units 1876f0b5e634SDaniel Mack */ 1877f0b5e634SDaniel Mack struct procunit_value_info { 1878f0b5e634SDaniel Mack int control; 1879f0b5e634SDaniel Mack char *suffix; 1880f0b5e634SDaniel Mack int val_type; 1881f0b5e634SDaniel Mack int min_value; 1882f0b5e634SDaniel Mack }; 1883f0b5e634SDaniel Mack 1884f0b5e634SDaniel Mack struct procunit_info { 1885f0b5e634SDaniel Mack int type; 1886f0b5e634SDaniel Mack char *name; 1887f0b5e634SDaniel Mack struct procunit_value_info *values; 1888f0b5e634SDaniel Mack }; 1889f0b5e634SDaniel Mack 1890f0b5e634SDaniel Mack static struct procunit_value_info updown_proc_info[] = { 189165f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 189265f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1893f0b5e634SDaniel Mack { 0 } 1894f0b5e634SDaniel Mack }; 1895f0b5e634SDaniel Mack static struct procunit_value_info prologic_proc_info[] = { 189665f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 189765f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1898f0b5e634SDaniel Mack { 0 } 1899f0b5e634SDaniel Mack }; 1900f0b5e634SDaniel Mack static struct procunit_value_info threed_enh_proc_info[] = { 190165f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 190265f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 1903f0b5e634SDaniel Mack { 0 } 1904f0b5e634SDaniel Mack }; 1905f0b5e634SDaniel Mack static struct procunit_value_info reverb_proc_info[] = { 190665f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 190765f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 190865f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 190965f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 1910f0b5e634SDaniel Mack { 0 } 1911f0b5e634SDaniel Mack }; 1912f0b5e634SDaniel Mack static struct procunit_value_info chorus_proc_info[] = { 191365f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 191465f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 191565f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 191665f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 1917f0b5e634SDaniel Mack { 0 } 1918f0b5e634SDaniel Mack }; 1919f0b5e634SDaniel Mack static struct procunit_value_info dcr_proc_info[] = { 192065f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 192165f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 192265f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 192365f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 192465f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 192565f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 1926f0b5e634SDaniel Mack { 0 } 1927f0b5e634SDaniel Mack }; 1928f0b5e634SDaniel Mack 1929f0b5e634SDaniel Mack static struct procunit_info procunits[] = { 193065f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 193165f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 193265f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 193365f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 193465f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 193565f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 1936f0b5e634SDaniel Mack { 0 }, 1937f0b5e634SDaniel Mack }; 1938f0b5e634SDaniel Mack /* 1939f0b5e634SDaniel Mack * predefined data for extension units 1940f0b5e634SDaniel Mack */ 1941f0b5e634SDaniel Mack static struct procunit_value_info clock_rate_xu_info[] = { 1942f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1943f0b5e634SDaniel Mack { 0 } 1944f0b5e634SDaniel Mack }; 1945f0b5e634SDaniel Mack static struct procunit_value_info clock_source_xu_info[] = { 1946f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 1947f0b5e634SDaniel Mack { 0 } 1948f0b5e634SDaniel Mack }; 1949f0b5e634SDaniel Mack static struct procunit_value_info spdif_format_xu_info[] = { 1950f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 1951f0b5e634SDaniel Mack { 0 } 1952f0b5e634SDaniel Mack }; 1953f0b5e634SDaniel Mack static struct procunit_value_info soft_limit_xu_info[] = { 1954f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 1955f0b5e634SDaniel Mack { 0 } 1956f0b5e634SDaniel Mack }; 1957f0b5e634SDaniel Mack static struct procunit_info extunits[] = { 1958f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 1959f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 1960f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 1961f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 1962f0b5e634SDaniel Mack { 0 } 1963f0b5e634SDaniel Mack }; 19646bc170e4SDaniel Mack 1965f0b5e634SDaniel Mack /* 1966f0b5e634SDaniel Mack * build a processing/extension unit 1967f0b5e634SDaniel Mack */ 19686bc170e4SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, 19696bc170e4SDaniel Mack void *raw_desc, struct procunit_info *list, 19706bc170e4SDaniel Mack char *name) 1971f0b5e634SDaniel Mack { 197299fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 197399fc8645SDaniel Mack int num_ins = desc->bNrInPins; 1974f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1975f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1976f0b5e634SDaniel Mack int i, err, nameid, type, len; 1977f0b5e634SDaniel Mack struct procunit_info *info; 1978f0b5e634SDaniel Mack struct procunit_value_info *valinfo; 1979f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1980f0b5e634SDaniel Mack static struct procunit_value_info default_value_info[] = { 1981f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 1982f0b5e634SDaniel Mack { 0 } 1983f0b5e634SDaniel Mack }; 1984f0b5e634SDaniel Mack static struct procunit_info default_info = { 1985f0b5e634SDaniel Mack 0, NULL, default_value_info 1986f0b5e634SDaniel Mack }; 1987f0b5e634SDaniel Mack 198823caaf19SDaniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 198923caaf19SDaniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 19900ba41d91STakashi Iwai usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); 1991f0b5e634SDaniel Mack return -EINVAL; 1992f0b5e634SDaniel Mack } 1993f0b5e634SDaniel Mack 1994f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 199599fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 1996f0b5e634SDaniel Mack return err; 1997f0b5e634SDaniel Mack } 1998f0b5e634SDaniel Mack 199999fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 2000f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 2001f0b5e634SDaniel Mack if (info->type == type) 2002f0b5e634SDaniel Mack break; 2003f0b5e634SDaniel Mack if (!info || !info->type) 2004f0b5e634SDaniel Mack info = &default_info; 2005f0b5e634SDaniel Mack 2006f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 200723caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 200899fc8645SDaniel Mack 200999fc8645SDaniel Mack if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 2010f0b5e634SDaniel Mack continue; 2011f0b5e634SDaniel Mack map = find_map(state, unitid, valinfo->control); 2012f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2013f0b5e634SDaniel Mack continue; 2014f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2015a860d95fSDaniel Mack if (!cval) 2016f0b5e634SDaniel Mack return -ENOMEM; 20173360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2018f0b5e634SDaniel Mack cval->control = valinfo->control; 2019f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 2020f0b5e634SDaniel Mack cval->channels = 1; 2021f0b5e634SDaniel Mack 2022f0b5e634SDaniel Mack /* get min/max values */ 202365f25da4SDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 202423caaf19SDaniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 2025f0b5e634SDaniel Mack /* FIXME: hard-coded */ 2026f0b5e634SDaniel Mack cval->min = 1; 202799fc8645SDaniel Mack cval->max = control_spec[0]; 2028f0b5e634SDaniel Mack cval->res = 1; 2029f0b5e634SDaniel Mack cval->initialized = 1; 2030f0b5e634SDaniel Mack } else { 2031f0b5e634SDaniel Mack if (type == USB_XU_CLOCK_RATE) { 20326bc170e4SDaniel Mack /* 20336bc170e4SDaniel Mack * E-Mu USB 0404/0202/TrackerPre/0204 2034f0b5e634SDaniel Mack * samplerate control quirk 2035f0b5e634SDaniel Mack */ 2036f0b5e634SDaniel Mack cval->min = 0; 2037f0b5e634SDaniel Mack cval->max = 5; 2038f0b5e634SDaniel Mack cval->res = 1; 2039f0b5e634SDaniel Mack cval->initialized = 1; 2040f0b5e634SDaniel Mack } else 2041f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 2042f0b5e634SDaniel Mack } 2043f0b5e634SDaniel Mack 2044f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 2045f0b5e634SDaniel Mack if (!kctl) { 2046f0b5e634SDaniel Mack kfree(cval); 2047f0b5e634SDaniel Mack return -ENOMEM; 2048f0b5e634SDaniel Mack } 2049eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2050f0b5e634SDaniel Mack 20516bc170e4SDaniel Mack if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { 2052f0b5e634SDaniel Mack /* nothing */ ; 20536bc170e4SDaniel Mack } else if (info->name) { 2054f0b5e634SDaniel Mack strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 20556bc170e4SDaniel Mack } else { 205623caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 2057f0b5e634SDaniel Mack len = 0; 2058f0b5e634SDaniel Mack if (nameid) 20596bc170e4SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, 20606bc170e4SDaniel Mack kctl->id.name, 20616bc170e4SDaniel Mack sizeof(kctl->id.name)); 2062f0b5e634SDaniel Mack if (!len) 2063f0b5e634SDaniel Mack strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 2064f0b5e634SDaniel Mack } 2065f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 2066f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 2067f0b5e634SDaniel Mack 20680ba41d91STakashi Iwai usb_audio_dbg(state->chip, 20690ba41d91STakashi Iwai "[%d] PU [%s] ch = %d, val = %d/%d\n", 20703360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 20716bc170e4SDaniel Mack cval->min, cval->max); 20726bc170e4SDaniel Mack 20733360b84bSTakashi Iwai err = snd_usb_mixer_add_control(&cval->head, kctl); 20746bc170e4SDaniel Mack if (err < 0) 2075f0b5e634SDaniel Mack return err; 2076f0b5e634SDaniel Mack } 2077f0b5e634SDaniel Mack return 0; 2078f0b5e634SDaniel Mack } 2079f0b5e634SDaniel Mack 20806bc170e4SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, 20816bc170e4SDaniel Mack void *raw_desc) 2082f0b5e634SDaniel Mack { 20836bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 20846bc170e4SDaniel Mack procunits, "Processing Unit"); 2085f0b5e634SDaniel Mack } 2086f0b5e634SDaniel Mack 20876bc170e4SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, 20886bc170e4SDaniel Mack void *raw_desc) 2089f0b5e634SDaniel Mack { 20906bc170e4SDaniel Mack /* 20916bc170e4SDaniel Mack * Note that we parse extension units with processing unit descriptors. 20926bc170e4SDaniel Mack * That's ok as the layout is the same. 20936bc170e4SDaniel Mack */ 20946bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 20956bc170e4SDaniel Mack extunits, "Extension Unit"); 2096f0b5e634SDaniel Mack } 2097f0b5e634SDaniel Mack 2098f0b5e634SDaniel Mack /* 2099f0b5e634SDaniel Mack * Selector Unit 2100f0b5e634SDaniel Mack */ 2101f0b5e634SDaniel Mack 21026bc170e4SDaniel Mack /* 21036bc170e4SDaniel Mack * info callback for selector unit 2104f0b5e634SDaniel Mack * use an enumerator type for routing 2105f0b5e634SDaniel Mack */ 21066bc170e4SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, 21076bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 2108f0b5e634SDaniel Mack { 2109f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 21102a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 2111f0b5e634SDaniel Mack 2112f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 2113f0b5e634SDaniel Mack return -EINVAL; 21142a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 2115f0b5e634SDaniel Mack } 2116f0b5e634SDaniel Mack 2117f0b5e634SDaniel Mack /* get callback for selector unit */ 21186bc170e4SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, 21196bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2120f0b5e634SDaniel Mack { 2121f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2122f0b5e634SDaniel Mack int val, err; 2123f0b5e634SDaniel Mack 212409414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 2125f0b5e634SDaniel Mack if (err < 0) { 2126f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 21275aeee342STakashi Iwai return filter_error(cval, err); 2128f0b5e634SDaniel Mack } 2129f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2130f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 2131f0b5e634SDaniel Mack return 0; 2132f0b5e634SDaniel Mack } 2133f0b5e634SDaniel Mack 2134f0b5e634SDaniel Mack /* put callback for selector unit */ 21356bc170e4SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, 21366bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2137f0b5e634SDaniel Mack { 2138f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2139f0b5e634SDaniel Mack int val, oval, err; 2140f0b5e634SDaniel Mack 214109414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 21425aeee342STakashi Iwai if (err < 0) 21435aeee342STakashi Iwai return filter_error(cval, err); 2144f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 2145f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2146f0b5e634SDaniel Mack if (val != oval) { 214709414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2148f0b5e634SDaniel Mack return 1; 2149f0b5e634SDaniel Mack } 2150f0b5e634SDaniel Mack return 0; 2151f0b5e634SDaniel Mack } 2152f0b5e634SDaniel Mack 2153f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 21548fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_selectunit_ctl = { 2155f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2156f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2157f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 2158f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 2159f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 2160f0b5e634SDaniel Mack }; 2161f0b5e634SDaniel Mack 21626bc170e4SDaniel Mack /* 21636bc170e4SDaniel Mack * private free callback. 2164f0b5e634SDaniel Mack * free both private_data and private_value 2165f0b5e634SDaniel Mack */ 2166f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 2167f0b5e634SDaniel Mack { 2168f0b5e634SDaniel Mack int i, num_ins = 0; 2169f0b5e634SDaniel Mack 2170f0b5e634SDaniel Mack if (kctl->private_data) { 2171f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 2172f0b5e634SDaniel Mack num_ins = cval->max; 2173f0b5e634SDaniel Mack kfree(cval); 2174f0b5e634SDaniel Mack kctl->private_data = NULL; 2175f0b5e634SDaniel Mack } 2176f0b5e634SDaniel Mack if (kctl->private_value) { 2177f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 2178f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 2179f0b5e634SDaniel Mack kfree(itemlist[i]); 2180f0b5e634SDaniel Mack kfree(itemlist); 2181f0b5e634SDaniel Mack kctl->private_value = 0; 2182f0b5e634SDaniel Mack } 2183f0b5e634SDaniel Mack } 2184f0b5e634SDaniel Mack 2185f0b5e634SDaniel Mack /* 2186f0b5e634SDaniel Mack * parse a selector unit 2187f0b5e634SDaniel Mack */ 21886bc170e4SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, 21896bc170e4SDaniel Mack void *raw_desc) 2190f0b5e634SDaniel Mack { 219199fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 2192f0b5e634SDaniel Mack unsigned int i, nameid, len; 2193f0b5e634SDaniel Mack int err; 2194f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2195f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2196f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2197f0b5e634SDaniel Mack char **namelist; 2198f0b5e634SDaniel Mack 2199f658f17bSTakashi Iwai if (desc->bLength < 5 || !desc->bNrInPins || 2200f658f17bSTakashi Iwai desc->bLength < 5 + desc->bNrInPins) { 22010ba41d91STakashi Iwai usb_audio_err(state->chip, 22020ba41d91STakashi Iwai "invalid SELECTOR UNIT descriptor %d\n", unitid); 2203f0b5e634SDaniel Mack return -EINVAL; 2204f0b5e634SDaniel Mack } 2205f0b5e634SDaniel Mack 220699fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 220799fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 2208f0b5e634SDaniel Mack return err; 2209f0b5e634SDaniel Mack } 2210f0b5e634SDaniel Mack 221199fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 2212f0b5e634SDaniel Mack return 0; 2213f0b5e634SDaniel Mack 2214f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 2215f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2216f0b5e634SDaniel Mack return 0; 2217f0b5e634SDaniel Mack 2218f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2219a860d95fSDaniel Mack if (!cval) 2220f0b5e634SDaniel Mack return -ENOMEM; 22213360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2222f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 2223f0b5e634SDaniel Mack cval->channels = 1; 2224f0b5e634SDaniel Mack cval->min = 1; 222599fc8645SDaniel Mack cval->max = desc->bNrInPins; 2226f0b5e634SDaniel Mack cval->res = 1; 2227f0b5e634SDaniel Mack cval->initialized = 1; 2228f0b5e634SDaniel Mack 2229a358a0efSJohan Rastén if (state->mixer->protocol == UAC_VERSION_1) 223009414207SDaniel Mack cval->control = 0; 2231a358a0efSJohan Rastén else /* UAC_VERSION_2 */ 2232a358a0efSJohan Rastén cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? 2233a358a0efSJohan Rastén UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; 223409414207SDaniel Mack 223599fc8645SDaniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 2236f0b5e634SDaniel Mack if (!namelist) { 2237f0b5e634SDaniel Mack kfree(cval); 2238f0b5e634SDaniel Mack return -ENOMEM; 2239f0b5e634SDaniel Mack } 2240f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 224199fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2242f0b5e634SDaniel Mack struct usb_audio_term iterm; 2243f0b5e634SDaniel Mack len = 0; 2244f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 2245f0b5e634SDaniel Mack if (!namelist[i]) { 2246f0b5e634SDaniel Mack while (i--) 2247f0b5e634SDaniel Mack kfree(namelist[i]); 2248f0b5e634SDaniel Mack kfree(namelist); 2249f0b5e634SDaniel Mack kfree(cval); 2250f0b5e634SDaniel Mack return -ENOMEM; 2251f0b5e634SDaniel Mack } 2252f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 2253f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 225499fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 2255f0b5e634SDaniel Mack len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 2256f0b5e634SDaniel Mack if (! len) 2257af831eefSMasanari Iida sprintf(namelist[i], "Input %u", i); 2258f0b5e634SDaniel Mack } 2259f0b5e634SDaniel Mack 2260f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 2261f0b5e634SDaniel Mack if (! kctl) { 22620ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 2263f0b5e634SDaniel Mack kfree(namelist); 2264f0b5e634SDaniel Mack kfree(cval); 2265f0b5e634SDaniel Mack return -ENOMEM; 2266f0b5e634SDaniel Mack } 2267f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 2268f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 2269f0b5e634SDaniel Mack 22705a15f289STakashi Iwai /* check the static mapping table at first */ 2271f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 22725a15f289STakashi Iwai if (!len) { 22735a15f289STakashi Iwai /* no mapping ? */ 22745a15f289STakashi Iwai /* if iSelector is given, use it */ 22755a15f289STakashi Iwai nameid = uac_selector_unit_iSelector(desc); 22765a15f289STakashi Iwai if (nameid) 22775a15f289STakashi Iwai len = snd_usb_copy_string_desc(state, nameid, 22785a15f289STakashi Iwai kctl->id.name, 22796bc170e4SDaniel Mack sizeof(kctl->id.name)); 22805a15f289STakashi Iwai /* ... or pick up the terminal name at next */ 22815a15f289STakashi Iwai if (!len) 2282f0b5e634SDaniel Mack len = get_term_name(state, &state->oterm, 2283f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 22845a15f289STakashi Iwai /* ... or use the fixed string "USB" as the last resort */ 2285f0b5e634SDaniel Mack if (!len) 2286f0b5e634SDaniel Mack strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 2287f0b5e634SDaniel Mack 22885a15f289STakashi Iwai /* and add the proper suffix */ 228909414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 229009414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 229109414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 2292f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 2293f0b5e634SDaniel Mack else 2294f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 2295f0b5e634SDaniel Mack } 2296f0b5e634SDaniel Mack 22970ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", 22983360b84bSTakashi Iwai cval->head.id, kctl->id.name, desc->bNrInPins); 22993360b84bSTakashi Iwai return snd_usb_mixer_add_control(&cval->head, kctl); 2300f0b5e634SDaniel Mack } 2301f0b5e634SDaniel Mack 2302f0b5e634SDaniel Mack /* 2303f0b5e634SDaniel Mack * parse an audio unit recursively 2304f0b5e634SDaniel Mack */ 2305f0b5e634SDaniel Mack 2306f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 2307f0b5e634SDaniel Mack { 2308f0b5e634SDaniel Mack unsigned char *p1; 23099a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 2310f0b5e634SDaniel Mack 2311f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 2312f0b5e634SDaniel Mack return 0; /* the unit already visited */ 2313f0b5e634SDaniel Mack 2314f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 2315f0b5e634SDaniel Mack if (!p1) { 23160ba41d91STakashi Iwai usb_audio_err(state->chip, "unit %d not found!\n", unitid); 2317f0b5e634SDaniel Mack return -EINVAL; 2318f0b5e634SDaniel Mack } 2319f0b5e634SDaniel Mack 23209a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) { 2321f0b5e634SDaniel Mack switch (p1[2]) { 2322f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 2323f0b5e634SDaniel Mack return 0; /* NOP */ 2324f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 2325f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 2326cddaafb9SDaniel Mack case UAC2_CLOCK_SOURCE: 2327cddaafb9SDaniel Mack return parse_clock_source_unit(state, unitid, p1); 2328f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 232909414207SDaniel Mack case UAC2_CLOCK_SELECTOR: 2330f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 2331f0b5e634SDaniel Mack case UAC_FEATURE_UNIT: 2332f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 233369da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 233423caaf19SDaniel Mack /* UAC2_EFFECT_UNIT has the same value */ 23359a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) 2336f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 233723caaf19SDaniel Mack else 233823caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 233969da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 234023caaf19SDaniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 23419a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) 2342f0b5e634SDaniel Mack return parse_audio_extension_unit(state, unitid, p1); 234323caaf19SDaniel Mack else /* UAC_VERSION_2 */ 234423caaf19SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 234561ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: 234661ac5130STorstein Hegge return parse_audio_extension_unit(state, unitid, p1); 2347f0b5e634SDaniel Mack default: 23480ba41d91STakashi Iwai usb_audio_err(state->chip, 23490ba41d91STakashi Iwai "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 2350f0b5e634SDaniel Mack return -EINVAL; 2351f0b5e634SDaniel Mack } 23529a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 23539a2fe9b8SRuslan Bilovol switch (p1[2]) { 23549a2fe9b8SRuslan Bilovol case UAC_INPUT_TERMINAL: 23559a2fe9b8SRuslan Bilovol return 0; /* NOP */ 23569a2fe9b8SRuslan Bilovol case UAC3_MIXER_UNIT: 23579a2fe9b8SRuslan Bilovol return parse_audio_mixer_unit(state, unitid, p1); 23589a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SOURCE: 23599a2fe9b8SRuslan Bilovol return parse_clock_source_unit(state, unitid, p1); 23609a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SELECTOR: 23619a2fe9b8SRuslan Bilovol return parse_audio_selector_unit(state, unitid, p1); 23629a2fe9b8SRuslan Bilovol case UAC3_FEATURE_UNIT: 23639a2fe9b8SRuslan Bilovol return parse_audio_feature_unit(state, unitid, p1); 23649a2fe9b8SRuslan Bilovol case UAC3_EFFECT_UNIT: 23659a2fe9b8SRuslan Bilovol return 0; /* FIXME - effect units not implemented yet */ 23669a2fe9b8SRuslan Bilovol case UAC3_PROCESSING_UNIT: 23679a2fe9b8SRuslan Bilovol return parse_audio_processing_unit(state, unitid, p1); 23689a2fe9b8SRuslan Bilovol case UAC3_EXTENSION_UNIT: 23699a2fe9b8SRuslan Bilovol return parse_audio_extension_unit(state, unitid, p1); 23709a2fe9b8SRuslan Bilovol default: 23719a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 23729a2fe9b8SRuslan Bilovol "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 23739a2fe9b8SRuslan Bilovol return -EINVAL; 23749a2fe9b8SRuslan Bilovol } 23759a2fe9b8SRuslan Bilovol } 2376f0b5e634SDaniel Mack } 2377f0b5e634SDaniel Mack 2378f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 2379f0b5e634SDaniel Mack { 2380124751d5STakashi Iwai /* kill pending URBs */ 2381124751d5STakashi Iwai snd_usb_mixer_disconnect(mixer); 2382124751d5STakashi Iwai 2383f0b5e634SDaniel Mack kfree(mixer->id_elems); 2384f0b5e634SDaniel Mack if (mixer->urb) { 2385f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 2386f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 2387f0b5e634SDaniel Mack } 2388f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 2389f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 2390f0b5e634SDaniel Mack kfree(mixer); 2391f0b5e634SDaniel Mack } 2392f0b5e634SDaniel Mack 2393f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 2394f0b5e634SDaniel Mack { 2395f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 2396f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2397f0b5e634SDaniel Mack return 0; 2398f0b5e634SDaniel Mack } 2399f0b5e634SDaniel Mack 2400f0b5e634SDaniel Mack /* 2401f0b5e634SDaniel Mack * create mixer controls 2402f0b5e634SDaniel Mack * 2403f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 2404f0b5e634SDaniel Mack */ 2405f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 2406f0b5e634SDaniel Mack { 2407f0b5e634SDaniel Mack struct mixer_build state; 2408f0b5e634SDaniel Mack int err; 2409f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 241023caaf19SDaniel Mack void *p; 2411f0b5e634SDaniel Mack 2412f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 2413f0b5e634SDaniel Mack state.chip = mixer->chip; 2414f0b5e634SDaniel Mack state.mixer = mixer; 24151faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 24161faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 2417f0b5e634SDaniel Mack 2418f0b5e634SDaniel Mack /* check the mapping table */ 2419f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 2420f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 2421f0b5e634SDaniel Mack state.map = map->map; 2422f0b5e634SDaniel Mack state.selector_map = map->selector_map; 2423f0b5e634SDaniel Mack mixer->ignore_ctl_error = map->ignore_ctl_error; 2424f0b5e634SDaniel Mack break; 2425f0b5e634SDaniel Mack } 2426f0b5e634SDaniel Mack } 2427f0b5e634SDaniel Mack 242823caaf19SDaniel Mack p = NULL; 24296bc170e4SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, 24306bc170e4SDaniel Mack mixer->hostif->extralen, 24311faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 243223caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 243369da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 243423caaf19SDaniel Mack 243523caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 243623caaf19SDaniel Mack continue; /* invalid descriptor? */ 24376bc170e4SDaniel Mack /* mark terminal ID as visited */ 24386bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 243923caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 244023caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 244123caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 244223caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 244383ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 244423caaf19SDaniel Mack return err; 24459a2fe9b8SRuslan Bilovol } else if (mixer->protocol == UAC_VERSION_2) { 244623caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 244723caaf19SDaniel Mack 244823caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 2449f0b5e634SDaniel Mack continue; /* invalid descriptor? */ 24506bc170e4SDaniel Mack /* mark terminal ID as visited */ 24516bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 2452f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 2453f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 2454f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 2455f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 245683ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 2457f0b5e634SDaniel Mack return err; 245809414207SDaniel Mack 24596bc170e4SDaniel Mack /* 24606bc170e4SDaniel Mack * For UAC2, use the same approach to also add the 24616bc170e4SDaniel Mack * clock selectors 24626bc170e4SDaniel Mack */ 246309414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 246483ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 246509414207SDaniel Mack return err; 24669a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 24679a2fe9b8SRuslan Bilovol struct uac3_output_terminal_descriptor *desc = p; 24689a2fe9b8SRuslan Bilovol 24699a2fe9b8SRuslan Bilovol if (desc->bLength < sizeof(*desc)) 24709a2fe9b8SRuslan Bilovol continue; /* invalid descriptor? */ 24719a2fe9b8SRuslan Bilovol /* mark terminal ID as visited */ 24729a2fe9b8SRuslan Bilovol set_bit(desc->bTerminalID, state.unitbitmap); 24739a2fe9b8SRuslan Bilovol state.oterm.id = desc->bTerminalID; 24749a2fe9b8SRuslan Bilovol state.oterm.type = le16_to_cpu(desc->wTerminalType); 24759a2fe9b8SRuslan Bilovol state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr); 24769a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bSourceID); 24779a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 24789a2fe9b8SRuslan Bilovol return err; 24799a2fe9b8SRuslan Bilovol 24809a2fe9b8SRuslan Bilovol /* 24819a2fe9b8SRuslan Bilovol * For UAC3, use the same approach to also add the 24829a2fe9b8SRuslan Bilovol * clock selectors 24839a2fe9b8SRuslan Bilovol */ 24849a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bCSourceID); 24859a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 24869a2fe9b8SRuslan Bilovol return err; 2487f0b5e634SDaniel Mack } 248823caaf19SDaniel Mack } 248923caaf19SDaniel Mack 2490f0b5e634SDaniel Mack return 0; 2491f0b5e634SDaniel Mack } 2492f0b5e634SDaniel Mack 2493f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 2494f0b5e634SDaniel Mack { 24953360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2496f0b5e634SDaniel Mack 2497b2500b58SJulian Scheel for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { 2498b2500b58SJulian Scheel struct usb_mixer_elem_info *info = 2499b2500b58SJulian Scheel (struct usb_mixer_elem_info *)list; 2500b2500b58SJulian Scheel /* invalidate cache, so the value is read from the device */ 2501b2500b58SJulian Scheel info->cached = 0; 2502f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 25033360b84bSTakashi Iwai &list->kctl->id); 2504f0b5e634SDaniel Mack } 2505b2500b58SJulian Scheel } 2506f0b5e634SDaniel Mack 2507f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 25083360b84bSTakashi Iwai struct usb_mixer_elem_list *list) 2509f0b5e634SDaniel Mack { 25103360b84bSTakashi Iwai struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; 2511f0b5e634SDaniel Mack static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 2512f0b5e634SDaniel Mack "S8", "U8", "S16", "U16"}; 2513f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 25143360b84bSTakashi Iwai "channels=%i, type=\"%s\"\n", cval->head.id, 2515f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 2516f0b5e634SDaniel Mack val_types[cval->val_type]); 2517f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 2518f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 2519f0b5e634SDaniel Mack } 2520f0b5e634SDaniel Mack 2521f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 2522f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 2523f0b5e634SDaniel Mack { 2524f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 2525f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 25263360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2527f0b5e634SDaniel Mack int unitid; 2528f0b5e634SDaniel Mack 2529f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 2530f0b5e634SDaniel Mack snd_iprintf(buffer, 2531f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 25323d8d4dcfSDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 2533f0b5e634SDaniel Mack mixer->ignore_ctl_error); 2534f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 2535f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 25363360b84bSTakashi Iwai for (list = mixer->id_elems[unitid]; list; 25373360b84bSTakashi Iwai list = list->next_id_elem) { 25383360b84bSTakashi Iwai snd_iprintf(buffer, " Unit: %i\n", list->id); 25393360b84bSTakashi Iwai if (list->kctl) 25403360b84bSTakashi Iwai snd_iprintf(buffer, 25413360b84bSTakashi Iwai " Control: name=\"%s\", index=%i\n", 25423360b84bSTakashi Iwai list->kctl->id.name, 25433360b84bSTakashi Iwai list->kctl->id.index); 25443360b84bSTakashi Iwai if (list->dump) 25453360b84bSTakashi Iwai list->dump(buffer, list); 25463360b84bSTakashi Iwai } 2547f0b5e634SDaniel Mack } 2548f0b5e634SDaniel Mack } 2549f0b5e634SDaniel Mack } 2550f0b5e634SDaniel Mack 2551e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 2552e213e9cfSDaniel Mack int attribute, int value, int index) 2553e213e9cfSDaniel Mack { 25543360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2555e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 2556e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 2557e213e9cfSDaniel Mack __u8 channel = value & 0xff; 2558191227d9SDaniel Mack unsigned int count = 0; 2559e213e9cfSDaniel Mack 2560e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 25610ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 25620ba41d91STakashi Iwai "%s(): bogus channel number %d\n", 2563e213e9cfSDaniel Mack __func__, channel); 2564e213e9cfSDaniel Mack return; 2565e213e9cfSDaniel Mack } 2566e213e9cfSDaniel Mack 2567191227d9SDaniel Mack for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) 2568191227d9SDaniel Mack count++; 2569191227d9SDaniel Mack 2570191227d9SDaniel Mack if (count == 0) 2571191227d9SDaniel Mack return; 2572191227d9SDaniel Mack 25733360b84bSTakashi Iwai for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { 25743360b84bSTakashi Iwai struct usb_mixer_elem_info *info; 25753360b84bSTakashi Iwai 25763360b84bSTakashi Iwai if (!list->kctl) 25773360b84bSTakashi Iwai continue; 25783360b84bSTakashi Iwai 25793360b84bSTakashi Iwai info = (struct usb_mixer_elem_info *)list; 2580191227d9SDaniel Mack if (count > 1 && info->control != control) 2581e213e9cfSDaniel Mack continue; 2582e213e9cfSDaniel Mack 2583e213e9cfSDaniel Mack switch (attribute) { 2584e213e9cfSDaniel Mack case UAC2_CS_CUR: 2585e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 2586e213e9cfSDaniel Mack if (channel) 2587e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 2588e213e9cfSDaniel Mack else /* master channel */ 2589e213e9cfSDaniel Mack info->cached = 0; 2590e213e9cfSDaniel Mack 2591e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 25923360b84bSTakashi Iwai &info->head.kctl->id); 2593e213e9cfSDaniel Mack break; 2594e213e9cfSDaniel Mack 2595e213e9cfSDaniel Mack case UAC2_CS_RANGE: 2596e213e9cfSDaniel Mack /* TODO */ 2597e213e9cfSDaniel Mack break; 2598e213e9cfSDaniel Mack 2599e213e9cfSDaniel Mack case UAC2_CS_MEM: 2600e213e9cfSDaniel Mack /* TODO */ 2601e213e9cfSDaniel Mack break; 2602e213e9cfSDaniel Mack 2603e213e9cfSDaniel Mack default: 26040ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 26050ba41d91STakashi Iwai "unknown attribute %d in interrupt\n", 2606e213e9cfSDaniel Mack attribute); 2607e213e9cfSDaniel Mack break; 2608e213e9cfSDaniel Mack } /* switch */ 2609e213e9cfSDaniel Mack } 2610e213e9cfSDaniel Mack } 2611e213e9cfSDaniel Mack 2612e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 2613f0b5e634SDaniel Mack { 2614f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 2615e213e9cfSDaniel Mack int len = urb->actual_length; 2616edf7de31SOliver Neukum int ustatus = urb->status; 2617f0b5e634SDaniel Mack 2618edf7de31SOliver Neukum if (ustatus != 0) 2619e213e9cfSDaniel Mack goto requeue; 2620f0b5e634SDaniel Mack 2621e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2622e213e9cfSDaniel Mack struct uac1_status_word *status; 2623e213e9cfSDaniel Mack 2624e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 2625e213e9cfSDaniel Mack len >= sizeof(*status); 2626e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 26270ba41d91STakashi Iwai dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", 2628e213e9cfSDaniel Mack status->bStatusType, 2629e213e9cfSDaniel Mack status->bOriginator); 2630e213e9cfSDaniel Mack 2631f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 2632e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2633e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 2634f0b5e634SDaniel Mack continue; 2635e213e9cfSDaniel Mack 2636e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2637e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2638f0b5e634SDaniel Mack else 2639e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2640e213e9cfSDaniel Mack } 2641e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 2642e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 2643e213e9cfSDaniel Mack 2644e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 2645e213e9cfSDaniel Mack len >= sizeof(*msg); 2646e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 2647e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 2648e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2649e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2650e213e9cfSDaniel Mack continue; 2651e213e9cfSDaniel Mack 2652e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2653e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 2654e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 2655f0b5e634SDaniel Mack } 2656f0b5e634SDaniel Mack } 2657e213e9cfSDaniel Mack 2658e213e9cfSDaniel Mack requeue: 26596bc170e4SDaniel Mack if (ustatus != -ENOENT && 26606bc170e4SDaniel Mack ustatus != -ECONNRESET && 26616bc170e4SDaniel Mack ustatus != -ESHUTDOWN) { 2662f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 2663f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 2664f0b5e634SDaniel Mack } 2665f0b5e634SDaniel Mack } 2666f0b5e634SDaniel Mack 2667f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 2668f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 2669f0b5e634SDaniel Mack { 2670f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 2671f0b5e634SDaniel Mack void *transfer_buffer; 2672f0b5e634SDaniel Mack int buffer_length; 2673f0b5e634SDaniel Mack unsigned int epnum; 2674f0b5e634SDaniel Mack 2675f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 26761faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 2677f0b5e634SDaniel Mack return 0; 26781faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 2679f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 2680f0b5e634SDaniel Mack return 0; 2681f0b5e634SDaniel Mack 2682f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 2683f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 2684f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 2685f0b5e634SDaniel Mack if (!transfer_buffer) 2686f0b5e634SDaniel Mack return -ENOMEM; 2687f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 2688f0b5e634SDaniel Mack if (!mixer->urb) { 2689f0b5e634SDaniel Mack kfree(transfer_buffer); 2690f0b5e634SDaniel Mack return -ENOMEM; 2691f0b5e634SDaniel Mack } 2692f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 2693f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 2694f0b5e634SDaniel Mack transfer_buffer, buffer_length, 2695e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 2696f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 2697f0b5e634SDaniel Mack return 0; 2698f0b5e634SDaniel Mack } 2699f0b5e634SDaniel Mack 2700f0b5e634SDaniel Mack int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 2701f0b5e634SDaniel Mack int ignore_error) 2702f0b5e634SDaniel Mack { 2703f0b5e634SDaniel Mack static struct snd_device_ops dev_ops = { 2704f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 2705f0b5e634SDaniel Mack }; 2706f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2707f0b5e634SDaniel Mack struct snd_info_entry *entry; 270823caaf19SDaniel Mack int err; 2709f0b5e634SDaniel Mack 2710f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 2711f0b5e634SDaniel Mack 2712f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 2713f0b5e634SDaniel Mack if (!mixer) 2714f0b5e634SDaniel Mack return -ENOMEM; 2715f0b5e634SDaniel Mack mixer->chip = chip; 2716f0b5e634SDaniel Mack mixer->ignore_ctl_error = ignore_error; 2717f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2718f0b5e634SDaniel Mack GFP_KERNEL); 2719f0b5e634SDaniel Mack if (!mixer->id_elems) { 2720f0b5e634SDaniel Mack kfree(mixer); 2721f0b5e634SDaniel Mack return -ENOMEM; 2722f0b5e634SDaniel Mack } 2723f0b5e634SDaniel Mack 27241faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 27251faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 2726a2acad82SClemens Ladisch case UAC_VERSION_1: 2727a2acad82SClemens Ladisch default: 2728a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 2729a2acad82SClemens Ladisch break; 2730a2acad82SClemens Ladisch case UAC_VERSION_2: 2731a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 2732a2acad82SClemens Ladisch break; 27339a2fe9b8SRuslan Bilovol case UAC_VERSION_3: 27349a2fe9b8SRuslan Bilovol mixer->protocol = UAC_VERSION_3; 27359a2fe9b8SRuslan Bilovol break; 2736a2acad82SClemens Ladisch } 2737f0b5e634SDaniel Mack 2738f0b5e634SDaniel Mack if ((err = snd_usb_mixer_controls(mixer)) < 0 || 2739f0b5e634SDaniel Mack (err = snd_usb_mixer_status_create(mixer)) < 0) 2740f0b5e634SDaniel Mack goto _error; 2741f0b5e634SDaniel Mack 2742f0b5e634SDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2743f0b5e634SDaniel Mack 27449cbb2808STakashi Iwai err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); 2745f0b5e634SDaniel Mack if (err < 0) 2746f0b5e634SDaniel Mack goto _error; 2747f0b5e634SDaniel Mack 2748f0b5e634SDaniel Mack if (list_empty(&chip->mixer_list) && 2749f0b5e634SDaniel Mack !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2750f0b5e634SDaniel Mack snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2751f0b5e634SDaniel Mack 2752f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 2753f0b5e634SDaniel Mack return 0; 2754f0b5e634SDaniel Mack 2755f0b5e634SDaniel Mack _error: 2756f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2757f0b5e634SDaniel Mack return err; 2758f0b5e634SDaniel Mack } 2759f0b5e634SDaniel Mack 2760a6cece9dSTakashi Iwai void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) 2761f0b5e634SDaniel Mack { 2762124751d5STakashi Iwai if (mixer->disconnected) 2763124751d5STakashi Iwai return; 2764124751d5STakashi Iwai if (mixer->urb) 2765f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 2766124751d5STakashi Iwai if (mixer->rc_urb) 2767f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 2768124751d5STakashi Iwai mixer->disconnected = true; 2769f0b5e634SDaniel Mack } 2770400362f1STakashi Iwai 2771400362f1STakashi Iwai #ifdef CONFIG_PM 2772400362f1STakashi Iwai /* stop any bus activity of a mixer */ 2773400362f1STakashi Iwai static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 2774400362f1STakashi Iwai { 2775400362f1STakashi Iwai usb_kill_urb(mixer->urb); 2776400362f1STakashi Iwai usb_kill_urb(mixer->rc_urb); 2777400362f1STakashi Iwai } 2778400362f1STakashi Iwai 2779400362f1STakashi Iwai static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 2780400362f1STakashi Iwai { 2781400362f1STakashi Iwai int err; 2782400362f1STakashi Iwai 2783400362f1STakashi Iwai if (mixer->urb) { 2784400362f1STakashi Iwai err = usb_submit_urb(mixer->urb, GFP_NOIO); 2785400362f1STakashi Iwai if (err < 0) 2786400362f1STakashi Iwai return err; 2787400362f1STakashi Iwai } 2788400362f1STakashi Iwai 2789400362f1STakashi Iwai return 0; 2790400362f1STakashi Iwai } 2791400362f1STakashi Iwai 2792400362f1STakashi Iwai int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) 2793400362f1STakashi Iwai { 2794400362f1STakashi Iwai snd_usb_mixer_inactivate(mixer); 2795400362f1STakashi Iwai return 0; 2796400362f1STakashi Iwai } 2797400362f1STakashi Iwai 27983360b84bSTakashi Iwai static int restore_mixer_value(struct usb_mixer_elem_list *list) 2799400362f1STakashi Iwai { 28003360b84bSTakashi Iwai struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; 2801400362f1STakashi Iwai int c, err, idx; 2802400362f1STakashi Iwai 2803400362f1STakashi Iwai if (cval->cmask) { 2804400362f1STakashi Iwai idx = 0; 2805400362f1STakashi Iwai for (c = 0; c < MAX_CHANNELS; c++) { 2806400362f1STakashi Iwai if (!(cval->cmask & (1 << c))) 2807400362f1STakashi Iwai continue; 28086aa6925cSYao-Wen Mao if (cval->cached & (1 << (c + 1))) { 2809eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, c + 1, idx, 2810400362f1STakashi Iwai cval->cache_val[idx]); 2811400362f1STakashi Iwai if (err < 0) 2812400362f1STakashi Iwai return err; 2813400362f1STakashi Iwai } 2814400362f1STakashi Iwai idx++; 2815400362f1STakashi Iwai } 2816400362f1STakashi Iwai } else { 2817400362f1STakashi Iwai /* master */ 2818400362f1STakashi Iwai if (cval->cached) { 2819eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); 2820400362f1STakashi Iwai if (err < 0) 2821400362f1STakashi Iwai return err; 2822400362f1STakashi Iwai } 2823400362f1STakashi Iwai } 2824400362f1STakashi Iwai 2825400362f1STakashi Iwai return 0; 2826400362f1STakashi Iwai } 2827400362f1STakashi Iwai 2828400362f1STakashi Iwai int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) 2829400362f1STakashi Iwai { 28303360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2831400362f1STakashi Iwai int id, err; 2832400362f1STakashi Iwai 2833400362f1STakashi Iwai if (reset_resume) { 2834400362f1STakashi Iwai /* restore cached mixer values */ 2835400362f1STakashi Iwai for (id = 0; id < MAX_ID_ELEMS; id++) { 28363360b84bSTakashi Iwai for (list = mixer->id_elems[id]; list; 28373360b84bSTakashi Iwai list = list->next_id_elem) { 28383360b84bSTakashi Iwai if (list->resume) { 28393360b84bSTakashi Iwai err = list->resume(list); 2840400362f1STakashi Iwai if (err < 0) 2841400362f1STakashi Iwai return err; 2842400362f1STakashi Iwai } 2843400362f1STakashi Iwai } 2844400362f1STakashi Iwai } 28453360b84bSTakashi Iwai } 2846400362f1STakashi Iwai 2847400362f1STakashi Iwai return snd_usb_mixer_activate(mixer); 2848400362f1STakashi Iwai } 2849400362f1STakashi Iwai #endif 28503360b84bSTakashi Iwai 28513360b84bSTakashi Iwai void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, 28523360b84bSTakashi Iwai struct usb_mixer_interface *mixer, 28533360b84bSTakashi Iwai int unitid) 28543360b84bSTakashi Iwai { 28553360b84bSTakashi Iwai list->mixer = mixer; 28563360b84bSTakashi Iwai list->id = unitid; 28573360b84bSTakashi Iwai list->dump = snd_usb_mixer_dump_cval; 28583360b84bSTakashi Iwai #ifdef CONFIG_PM 28593360b84bSTakashi Iwai list->resume = restore_mixer_value; 28603360b84bSTakashi Iwai #endif 28613360b84bSTakashi Iwai } 2862