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> 54f0b5e634SDaniel Mack 55f0b5e634SDaniel Mack #include <sound/core.h> 56f0b5e634SDaniel Mack #include <sound/control.h> 57f0b5e634SDaniel Mack #include <sound/hwdep.h> 58f0b5e634SDaniel Mack #include <sound/info.h> 59f0b5e634SDaniel Mack #include <sound/tlv.h> 60f0b5e634SDaniel Mack 61f0b5e634SDaniel Mack #include "usbaudio.h" 62f0b5e634SDaniel Mack #include "mixer.h" 63f0b5e634SDaniel Mack #include "helper.h" 64f0b5e634SDaniel Mack #include "mixer_quirks.h" 6588a8516aSOliver Neukum #include "power.h" 66f0b5e634SDaniel Mack 67f0b5e634SDaniel Mack #define MAX_ID_ELEMS 256 68f0b5e634SDaniel Mack 69f0b5e634SDaniel Mack struct usb_audio_term { 70f0b5e634SDaniel Mack int id; 71f0b5e634SDaniel Mack int type; 72f0b5e634SDaniel Mack int channels; 73f0b5e634SDaniel Mack unsigned int chconfig; 74f0b5e634SDaniel Mack int name; 75f0b5e634SDaniel Mack }; 76f0b5e634SDaniel Mack 77f0b5e634SDaniel Mack struct usbmix_name_map; 78f0b5e634SDaniel Mack 79f0b5e634SDaniel Mack struct mixer_build { 80f0b5e634SDaniel Mack struct snd_usb_audio *chip; 81f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 82f0b5e634SDaniel Mack unsigned char *buffer; 83f0b5e634SDaniel Mack unsigned int buflen; 84f0b5e634SDaniel Mack DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 85f0b5e634SDaniel Mack struct usb_audio_term oterm; 86f0b5e634SDaniel Mack const struct usbmix_name_map *map; 87f0b5e634SDaniel Mack const struct usbmix_selector_map *selector_map; 88f0b5e634SDaniel Mack }; 89f0b5e634SDaniel Mack 901cdfa9f3SJoseph Teichman /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ 91f0b5e634SDaniel Mack enum { 92f0b5e634SDaniel Mack USB_XU_CLOCK_RATE = 0xe301, 93f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE = 0xe302, 94f0b5e634SDaniel Mack USB_XU_DIGITAL_IO_STATUS = 0xe303, 95f0b5e634SDaniel Mack USB_XU_DEVICE_OPTIONS = 0xe304, 96f0b5e634SDaniel Mack USB_XU_DIRECT_MONITORING = 0xe305, 97f0b5e634SDaniel Mack USB_XU_METERING = 0xe306 98f0b5e634SDaniel Mack }; 99f0b5e634SDaniel Mack enum { 100f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 101f0b5e634SDaniel Mack USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 102f0b5e634SDaniel Mack USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 103f0b5e634SDaniel Mack USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 104f0b5e634SDaniel Mack }; 105f0b5e634SDaniel Mack 106f0b5e634SDaniel Mack /* 107f0b5e634SDaniel Mack * manual mapping of mixer names 108f0b5e634SDaniel Mack * if the mixer topology is too complicated and the parsed names are 109f0b5e634SDaniel Mack * ambiguous, add the entries in usbmixer_maps.c. 110f0b5e634SDaniel Mack */ 111f0b5e634SDaniel Mack #include "mixer_maps.c" 112f0b5e634SDaniel Mack 113f0b5e634SDaniel Mack static const struct usbmix_name_map * 114f0b5e634SDaniel Mack find_map(struct mixer_build *state, int unitid, int control) 115f0b5e634SDaniel Mack { 116f0b5e634SDaniel Mack const struct usbmix_name_map *p = state->map; 117f0b5e634SDaniel Mack 118f0b5e634SDaniel Mack if (!p) 119f0b5e634SDaniel Mack return NULL; 120f0b5e634SDaniel Mack 121f0b5e634SDaniel Mack for (p = state->map; p->id; p++) { 122f0b5e634SDaniel Mack if (p->id == unitid && 123f0b5e634SDaniel Mack (!control || !p->control || control == p->control)) 124f0b5e634SDaniel Mack return p; 125f0b5e634SDaniel Mack } 126f0b5e634SDaniel Mack return NULL; 127f0b5e634SDaniel Mack } 128f0b5e634SDaniel Mack 129f0b5e634SDaniel Mack /* get the mapped name if the unit matches */ 130f0b5e634SDaniel Mack static int 131f0b5e634SDaniel Mack check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 132f0b5e634SDaniel Mack { 133f0b5e634SDaniel Mack if (!p || !p->name) 134f0b5e634SDaniel Mack return 0; 135f0b5e634SDaniel Mack 136f0b5e634SDaniel Mack buflen--; 137f0b5e634SDaniel Mack return strlcpy(buf, p->name, buflen); 138f0b5e634SDaniel Mack } 139f0b5e634SDaniel Mack 1405aeee342STakashi Iwai /* ignore the error value if ignore_ctl_error flag is set */ 1415aeee342STakashi Iwai #define filter_error(cval, err) \ 1423360b84bSTakashi Iwai ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) 1435aeee342STakashi Iwai 144f0b5e634SDaniel Mack /* check whether the control should be ignored */ 145f0b5e634SDaniel Mack static inline int 146f0b5e634SDaniel Mack check_ignored_ctl(const struct usbmix_name_map *p) 147f0b5e634SDaniel Mack { 148f0b5e634SDaniel Mack if (!p || p->name || p->dB) 149f0b5e634SDaniel Mack return 0; 150f0b5e634SDaniel Mack return 1; 151f0b5e634SDaniel Mack } 152f0b5e634SDaniel Mack 153f0b5e634SDaniel Mack /* dB mapping */ 154f0b5e634SDaniel Mack static inline void check_mapped_dB(const struct usbmix_name_map *p, 155f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 156f0b5e634SDaniel Mack { 157f0b5e634SDaniel Mack if (p && p->dB) { 158f0b5e634SDaniel Mack cval->dBmin = p->dB->min; 159f0b5e634SDaniel Mack cval->dBmax = p->dB->max; 16038b65190STakashi Iwai cval->initialized = 1; 161f0b5e634SDaniel Mack } 162f0b5e634SDaniel Mack } 163f0b5e634SDaniel Mack 164f0b5e634SDaniel Mack /* get the mapped selector source name */ 165f0b5e634SDaniel Mack static int check_mapped_selector_name(struct mixer_build *state, int unitid, 166f0b5e634SDaniel Mack int index, char *buf, int buflen) 167f0b5e634SDaniel Mack { 168f0b5e634SDaniel Mack const struct usbmix_selector_map *p; 169f0b5e634SDaniel Mack 170f0b5e634SDaniel Mack if (!state->selector_map) 171f0b5e634SDaniel Mack return 0; 172f0b5e634SDaniel Mack for (p = state->selector_map; p->id; p++) { 173f0b5e634SDaniel Mack if (p->id == unitid && index < p->count) 174f0b5e634SDaniel Mack return strlcpy(buf, p->names[index], buflen); 175f0b5e634SDaniel Mack } 176f0b5e634SDaniel Mack return 0; 177f0b5e634SDaniel Mack } 178f0b5e634SDaniel Mack 179f0b5e634SDaniel Mack /* 180f0b5e634SDaniel Mack * find an audio control unit with the given unit id 181f0b5e634SDaniel Mack */ 1826bc170e4SDaniel Mack static void *find_audio_control_unit(struct mixer_build *state, 1836bc170e4SDaniel Mack unsigned char unit) 184f0b5e634SDaniel Mack { 18567e1daa0SDaniel Mack /* we just parse the header */ 18667e1daa0SDaniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 187f0b5e634SDaniel Mack 18867e1daa0SDaniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 189f0b5e634SDaniel Mack USB_DT_CS_INTERFACE)) != NULL) { 19067e1daa0SDaniel Mack if (hdr->bLength >= 4 && 19167e1daa0SDaniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 19267e1daa0SDaniel Mack hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && 19367e1daa0SDaniel Mack hdr->bUnitID == unit) 19467e1daa0SDaniel Mack return hdr; 195f0b5e634SDaniel Mack } 19667e1daa0SDaniel Mack 197f0b5e634SDaniel Mack return NULL; 198f0b5e634SDaniel Mack } 199f0b5e634SDaniel Mack 200f0b5e634SDaniel Mack /* 201f0b5e634SDaniel Mack * copy a string with the given id 202f0b5e634SDaniel Mack */ 2036bc170e4SDaniel Mack static int snd_usb_copy_string_desc(struct mixer_build *state, 2046bc170e4SDaniel Mack int index, char *buf, int maxlen) 205f0b5e634SDaniel Mack { 206f0b5e634SDaniel Mack int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 207f0b5e634SDaniel Mack buf[len] = 0; 208f0b5e634SDaniel Mack return len; 209f0b5e634SDaniel Mack } 210f0b5e634SDaniel Mack 211f0b5e634SDaniel Mack /* 212f0b5e634SDaniel Mack * convert from the byte/word on usb descriptor to the zero-based integer 213f0b5e634SDaniel Mack */ 214f0b5e634SDaniel Mack static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 215f0b5e634SDaniel Mack { 216f0b5e634SDaniel Mack switch (cval->val_type) { 217f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 218f0b5e634SDaniel Mack return !!val; 219f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 220f0b5e634SDaniel Mack return !val; 221f0b5e634SDaniel Mack case USB_MIXER_U8: 222f0b5e634SDaniel Mack val &= 0xff; 223f0b5e634SDaniel Mack break; 224f0b5e634SDaniel Mack case USB_MIXER_S8: 225f0b5e634SDaniel Mack val &= 0xff; 226f0b5e634SDaniel Mack if (val >= 0x80) 227f0b5e634SDaniel Mack val -= 0x100; 228f0b5e634SDaniel Mack break; 229f0b5e634SDaniel Mack case USB_MIXER_U16: 230f0b5e634SDaniel Mack val &= 0xffff; 231f0b5e634SDaniel Mack break; 232f0b5e634SDaniel Mack case USB_MIXER_S16: 233f0b5e634SDaniel Mack val &= 0xffff; 234f0b5e634SDaniel Mack if (val >= 0x8000) 235f0b5e634SDaniel Mack val -= 0x10000; 236f0b5e634SDaniel Mack break; 237f0b5e634SDaniel Mack } 238f0b5e634SDaniel Mack return val; 239f0b5e634SDaniel Mack } 240f0b5e634SDaniel Mack 241f0b5e634SDaniel Mack /* 242f0b5e634SDaniel Mack * convert from the zero-based int to the byte/word for usb descriptor 243f0b5e634SDaniel Mack */ 244f0b5e634SDaniel Mack static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 245f0b5e634SDaniel Mack { 246f0b5e634SDaniel Mack switch (cval->val_type) { 247f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 248f0b5e634SDaniel Mack return !!val; 249f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 250f0b5e634SDaniel Mack return !val; 251f0b5e634SDaniel Mack case USB_MIXER_S8: 252f0b5e634SDaniel Mack case USB_MIXER_U8: 253f0b5e634SDaniel Mack return val & 0xff; 254f0b5e634SDaniel Mack case USB_MIXER_S16: 255f0b5e634SDaniel Mack case USB_MIXER_U16: 256f0b5e634SDaniel Mack return val & 0xffff; 257f0b5e634SDaniel Mack } 258f0b5e634SDaniel Mack return 0; /* not reached */ 259f0b5e634SDaniel Mack } 260f0b5e634SDaniel Mack 261f0b5e634SDaniel Mack static int get_relative_value(struct usb_mixer_elem_info *cval, int val) 262f0b5e634SDaniel Mack { 263f0b5e634SDaniel Mack if (!cval->res) 264f0b5e634SDaniel Mack cval->res = 1; 265f0b5e634SDaniel Mack if (val < cval->min) 266f0b5e634SDaniel Mack return 0; 267f0b5e634SDaniel Mack else if (val >= cval->max) 268f0b5e634SDaniel Mack return (cval->max - cval->min + cval->res - 1) / cval->res; 269f0b5e634SDaniel Mack else 270f0b5e634SDaniel Mack return (val - cval->min) / cval->res; 271f0b5e634SDaniel Mack } 272f0b5e634SDaniel Mack 273f0b5e634SDaniel Mack static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 274f0b5e634SDaniel Mack { 275f0b5e634SDaniel Mack if (val < 0) 276f0b5e634SDaniel Mack return cval->min; 277f0b5e634SDaniel Mack if (!cval->res) 278f0b5e634SDaniel Mack cval->res = 1; 279f0b5e634SDaniel Mack val *= cval->res; 280f0b5e634SDaniel Mack val += cval->min; 281f0b5e634SDaniel Mack if (val > cval->max) 282f0b5e634SDaniel Mack return cval->max; 283f0b5e634SDaniel Mack return val; 284f0b5e634SDaniel Mack } 285f0b5e634SDaniel Mack 286bc18e31cSJulian Scheel static int uac2_ctl_value_size(int val_type) 287bc18e31cSJulian Scheel { 288bc18e31cSJulian Scheel switch (val_type) { 289bc18e31cSJulian Scheel case USB_MIXER_S32: 290bc18e31cSJulian Scheel case USB_MIXER_U32: 291bc18e31cSJulian Scheel return 4; 292bc18e31cSJulian Scheel case USB_MIXER_S16: 293bc18e31cSJulian Scheel case USB_MIXER_U16: 294bc18e31cSJulian Scheel return 2; 295bc18e31cSJulian Scheel default: 296bc18e31cSJulian Scheel return 1; 297bc18e31cSJulian Scheel } 298bc18e31cSJulian Scheel return 0; /* unreachable */ 299bc18e31cSJulian Scheel } 300bc18e31cSJulian Scheel 301f0b5e634SDaniel Mack 302f0b5e634SDaniel Mack /* 303f0b5e634SDaniel Mack * retrieve a mixer value 304f0b5e634SDaniel Mack */ 305f0b5e634SDaniel Mack 3066bc170e4SDaniel Mack static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, 3076bc170e4SDaniel Mack int validx, int *value_ret) 308f0b5e634SDaniel Mack { 3093360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 310f0b5e634SDaniel Mack unsigned char buf[2]; 311f0b5e634SDaniel Mack int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 312f0b5e634SDaniel Mack int timeout = 10; 313978520b7STakashi Iwai int idx = 0, err; 314f0b5e634SDaniel Mack 31547ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 31688a8516aSOliver Neukum if (err < 0) 31788a8516aSOliver Neukum return -EIO; 3186bc170e4SDaniel Mack 319f0b5e634SDaniel Mack while (timeout-- > 0) { 3203360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3215a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 322f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3235a9a8ecaSStephen Barber validx, idx, buf, val_len); 3245a9a8ecaSStephen Barber if (err >= val_len) { 325f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 326978520b7STakashi Iwai err = 0; 327978520b7STakashi Iwai goto out; 3285a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 3295a9a8ecaSStephen Barber goto out; 330f0b5e634SDaniel Mack } 331f0b5e634SDaniel Mack } 3320ba41d91STakashi Iwai usb_audio_dbg(chip, 3330ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 334978520b7STakashi Iwai request, validx, idx, cval->val_type); 335978520b7STakashi Iwai err = -EINVAL; 336978520b7STakashi Iwai 337978520b7STakashi Iwai out: 33847ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 339978520b7STakashi Iwai return err; 340f0b5e634SDaniel Mack } 341f0b5e634SDaniel Mack 3426bc170e4SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 3436bc170e4SDaniel Mack int validx, int *value_ret) 34423caaf19SDaniel Mack { 3453360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 346bc18e31cSJulian Scheel unsigned char buf[4 + 3 * sizeof(__u32)]; /* enough space for one range */ 34723caaf19SDaniel Mack unsigned char *val; 348978520b7STakashi Iwai int idx = 0, ret, size; 34923caaf19SDaniel Mack __u8 bRequest; 35023caaf19SDaniel Mack 351e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 352e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 353bc18e31cSJulian Scheel size = uac2_ctl_value_size(cval->val_type); 354e8bdb6bbSDaniel Mack } else { 355e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 356e8bdb6bbSDaniel Mack size = sizeof(buf); 357e8bdb6bbSDaniel Mack } 358e8bdb6bbSDaniel Mack 359e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 36023caaf19SDaniel Mack 36147ab1545STakashi Iwai ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 36288a8516aSOliver Neukum if (ret) 36388a8516aSOliver Neukum goto error; 36488a8516aSOliver Neukum 3653360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3663d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 36723caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 368978520b7STakashi Iwai validx, idx, buf, size); 36947ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 37023caaf19SDaniel Mack 37123caaf19SDaniel Mack if (ret < 0) { 37288a8516aSOliver Neukum error: 3730ba41d91STakashi Iwai usb_audio_err(chip, 3740ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 375978520b7STakashi Iwai request, validx, idx, cval->val_type); 37623caaf19SDaniel Mack return ret; 37723caaf19SDaniel Mack } 37823caaf19SDaniel Mack 379e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 380e8bdb6bbSDaniel Mack 38123caaf19SDaniel Mack switch (request) { 38223caaf19SDaniel Mack case UAC_GET_CUR: 38323caaf19SDaniel Mack val = buf; 38423caaf19SDaniel Mack break; 38523caaf19SDaniel Mack case UAC_GET_MIN: 38623caaf19SDaniel Mack val = buf + sizeof(__u16); 38723caaf19SDaniel Mack break; 38823caaf19SDaniel Mack case UAC_GET_MAX: 38923caaf19SDaniel Mack val = buf + sizeof(__u16) * 2; 39023caaf19SDaniel Mack break; 39123caaf19SDaniel Mack case UAC_GET_RES: 39223caaf19SDaniel Mack val = buf + sizeof(__u16) * 3; 39323caaf19SDaniel Mack break; 39423caaf19SDaniel Mack default: 39523caaf19SDaniel Mack return -EINVAL; 39623caaf19SDaniel Mack } 39723caaf19SDaniel Mack 39823caaf19SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); 39923caaf19SDaniel Mack 40023caaf19SDaniel Mack return 0; 40123caaf19SDaniel Mack } 40223caaf19SDaniel Mack 4036bc170e4SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, 4046bc170e4SDaniel Mack int validx, int *value_ret) 40523caaf19SDaniel Mack { 4069f814105SEldad Zack validx += cval->idx_off; 4079f814105SEldad Zack 4083360b84bSTakashi Iwai return (cval->head.mixer->protocol == UAC_VERSION_1) ? 40923caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 41023caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 41123caaf19SDaniel Mack } 41223caaf19SDaniel Mack 4136bc170e4SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, 4146bc170e4SDaniel Mack int validx, int *value) 415f0b5e634SDaniel Mack { 416f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 417f0b5e634SDaniel Mack } 418f0b5e634SDaniel Mack 419f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 420f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 421f0b5e634SDaniel Mack int channel, int *value) 422f0b5e634SDaniel Mack { 4236bc170e4SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, 4246bc170e4SDaniel Mack (cval->control << 8) | channel, 4256bc170e4SDaniel Mack value); 426f0b5e634SDaniel Mack } 427f0b5e634SDaniel Mack 428eef90451SChris J Arges int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, 429f0b5e634SDaniel Mack int channel, int index, int *value) 430f0b5e634SDaniel Mack { 431f0b5e634SDaniel Mack int err; 432f0b5e634SDaniel Mack 433f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 434f0b5e634SDaniel Mack *value = cval->cache_val[index]; 435f0b5e634SDaniel Mack return 0; 436f0b5e634SDaniel Mack } 437f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 438f0b5e634SDaniel Mack if (err < 0) { 4393360b84bSTakashi Iwai if (!cval->head.mixer->ignore_ctl_error) 4403360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 4410ba41d91STakashi Iwai "cannot get current value for control %d ch %d: err = %d\n", 442f0b5e634SDaniel Mack cval->control, channel, err); 443f0b5e634SDaniel Mack return err; 444f0b5e634SDaniel Mack } 445f0b5e634SDaniel Mack cval->cached |= 1 << channel; 446f0b5e634SDaniel Mack cval->cache_val[index] = *value; 447f0b5e634SDaniel Mack return 0; 448f0b5e634SDaniel Mack } 449f0b5e634SDaniel Mack 450f0b5e634SDaniel Mack /* 451f0b5e634SDaniel Mack * set a mixer value 452f0b5e634SDaniel Mack */ 453f0b5e634SDaniel Mack 454f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 455f0b5e634SDaniel Mack int request, int validx, int value_set) 456f0b5e634SDaniel Mack { 4573360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 458bc18e31cSJulian Scheel unsigned char buf[4]; 459978520b7STakashi Iwai int idx = 0, val_len, err, timeout = 10; 46023caaf19SDaniel Mack 4619f814105SEldad Zack validx += cval->idx_off; 4629f814105SEldad Zack 4633360b84bSTakashi Iwai if (cval->head.mixer->protocol == UAC_VERSION_1) { 46423caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 46523caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 466bc18e31cSJulian Scheel val_len = uac2_ctl_value_size(cval->val_type); 46723caaf19SDaniel Mack 46823caaf19SDaniel Mack /* FIXME */ 46923caaf19SDaniel Mack if (request != UAC_SET_CUR) { 4700ba41d91STakashi Iwai usb_audio_dbg(chip, "RANGE setting not yet supported\n"); 47123caaf19SDaniel Mack return -EINVAL; 47223caaf19SDaniel Mack } 47323caaf19SDaniel Mack 47423caaf19SDaniel Mack request = UAC2_CS_CUR; 47523caaf19SDaniel Mack } 476f0b5e634SDaniel Mack 477f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 478f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 479f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 480bc18e31cSJulian Scheel buf[2] = (value_set >> 16) & 0xff; 481bc18e31cSJulian Scheel buf[3] = (value_set >> 24) & 0xff; 48247ab1545STakashi Iwai 48347ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 48488a8516aSOliver Neukum if (err < 0) 48588a8516aSOliver Neukum return -EIO; 48647ab1545STakashi Iwai 487978520b7STakashi Iwai while (timeout-- > 0) { 4883360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 4895a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, 4903d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 491f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 4925a9a8ecaSStephen Barber validx, idx, buf, val_len); 4935a9a8ecaSStephen Barber if (err >= 0) { 494978520b7STakashi Iwai err = 0; 495978520b7STakashi Iwai goto out; 4965a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 4975a9a8ecaSStephen Barber goto out; 49888a8516aSOliver Neukum } 499978520b7STakashi Iwai } 5000ba41d91STakashi Iwai usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 501978520b7STakashi Iwai request, validx, idx, cval->val_type, buf[0], buf[1]); 502978520b7STakashi Iwai err = -EINVAL; 503978520b7STakashi Iwai 504978520b7STakashi Iwai out: 50547ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 506978520b7STakashi Iwai return err; 507f0b5e634SDaniel Mack } 508f0b5e634SDaniel Mack 5096bc170e4SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, 5106bc170e4SDaniel Mack int validx, int value) 511f0b5e634SDaniel Mack { 512f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 513f0b5e634SDaniel Mack } 514f0b5e634SDaniel Mack 515eef90451SChris J Arges int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 516f0b5e634SDaniel Mack int index, int value) 517f0b5e634SDaniel Mack { 518f0b5e634SDaniel Mack int err; 519a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 520a6a33259SDaniel Mack cval->master_readonly : 521a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 522a6a33259SDaniel Mack 523a6a33259SDaniel Mack if (read_only) { 5243360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 5250ba41d91STakashi Iwai "%s(): channel %d of control %d is read_only\n", 526a6a33259SDaniel Mack __func__, channel, cval->control); 527a6a33259SDaniel Mack return 0; 528a6a33259SDaniel Mack } 529a6a33259SDaniel Mack 5306bc170e4SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, 5316bc170e4SDaniel Mack UAC_SET_CUR, (cval->control << 8) | channel, 532f0b5e634SDaniel Mack value); 533f0b5e634SDaniel Mack if (err < 0) 534f0b5e634SDaniel Mack return err; 535f0b5e634SDaniel Mack cval->cached |= 1 << channel; 536f0b5e634SDaniel Mack cval->cache_val[index] = value; 537f0b5e634SDaniel Mack return 0; 538f0b5e634SDaniel Mack } 539f0b5e634SDaniel Mack 540f0b5e634SDaniel Mack /* 541f0b5e634SDaniel Mack * TLV callback for mixer volume controls 542f0b5e634SDaniel Mack */ 543285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 544f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 545f0b5e634SDaniel Mack { 546f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 547f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 548f0b5e634SDaniel Mack 549f0b5e634SDaniel Mack if (size < sizeof(scale)) 550f0b5e634SDaniel Mack return -ENOMEM; 5510f174b35STakashi Iwai if (cval->min_mute) 5520f174b35STakashi Iwai scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; 553f0b5e634SDaniel Mack scale[2] = cval->dBmin; 554f0b5e634SDaniel Mack scale[3] = cval->dBmax; 555f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 556f0b5e634SDaniel Mack return -EFAULT; 557f0b5e634SDaniel Mack return 0; 558f0b5e634SDaniel Mack } 559f0b5e634SDaniel Mack 560f0b5e634SDaniel Mack /* 561f0b5e634SDaniel Mack * parser routines begin here... 562f0b5e634SDaniel Mack */ 563f0b5e634SDaniel Mack 564f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 565f0b5e634SDaniel Mack 566f0b5e634SDaniel Mack 567f0b5e634SDaniel Mack /* 568f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 569f0b5e634SDaniel Mack * used for mixer unit parser 570f0b5e634SDaniel Mack */ 5716bc170e4SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, 5726bc170e4SDaniel Mack int ich, int och, int num_outs) 573f0b5e634SDaniel Mack { 574f0b5e634SDaniel Mack int idx = ich * num_outs + och; 575f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 576f0b5e634SDaniel Mack } 577f0b5e634SDaniel Mack 578f0b5e634SDaniel Mack /* 579f0b5e634SDaniel Mack * add an alsa control element 580f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 581f0b5e634SDaniel Mack * 582f0b5e634SDaniel Mack * if failed, give up and free the control instance. 583f0b5e634SDaniel Mack */ 584f0b5e634SDaniel Mack 5853360b84bSTakashi Iwai int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, 586ef9d5970SDaniel Mack struct snd_kcontrol *kctl) 587f0b5e634SDaniel Mack { 5883360b84bSTakashi Iwai struct usb_mixer_interface *mixer = list->mixer; 589f0b5e634SDaniel Mack int err; 590f0b5e634SDaniel Mack 591ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 592f0b5e634SDaniel Mack kctl->id.index++; 593ef9d5970SDaniel Mack if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { 5946bc170e4SDaniel Mack usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", 5956bc170e4SDaniel Mack err); 596f0b5e634SDaniel Mack return err; 597f0b5e634SDaniel Mack } 5983360b84bSTakashi Iwai list->kctl = kctl; 5993360b84bSTakashi Iwai list->next_id_elem = mixer->id_elems[list->id]; 6003360b84bSTakashi Iwai mixer->id_elems[list->id] = list; 601f0b5e634SDaniel Mack return 0; 602f0b5e634SDaniel Mack } 603f0b5e634SDaniel Mack 604f0b5e634SDaniel Mack /* 605f0b5e634SDaniel Mack * get a terminal name string 606f0b5e634SDaniel Mack */ 607f0b5e634SDaniel Mack 608f0b5e634SDaniel Mack static struct iterm_name_combo { 609f0b5e634SDaniel Mack int type; 610f0b5e634SDaniel Mack char *name; 611f0b5e634SDaniel Mack } iterm_names[] = { 612f0b5e634SDaniel Mack { 0x0300, "Output" }, 613f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 614f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 615f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 616f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 617f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 618f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 619f0b5e634SDaniel Mack { 0x0307, "LFE" }, 620f0b5e634SDaniel Mack { 0x0600, "External In" }, 621f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 622f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 623f0b5e634SDaniel Mack { 0x0603, "Line" }, 624f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 625f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 626f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 627f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 628f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 629f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 630f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 631f0b5e634SDaniel Mack { 0x0703, "CD" }, 632f0b5e634SDaniel Mack { 0x0704, "DAT" }, 633f0b5e634SDaniel Mack { 0x0705, "DCC" }, 634f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 635f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 636f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 637f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 638f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 639f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 640f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 641f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 642f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 643f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 644f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 645f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 646f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 647f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 648f0b5e634SDaniel Mack { 0 }, 649f0b5e634SDaniel Mack }; 650f0b5e634SDaniel Mack 651f0b5e634SDaniel Mack static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 652f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 653f0b5e634SDaniel Mack { 654f0b5e634SDaniel Mack struct iterm_name_combo *names; 655f0b5e634SDaniel Mack 656f0b5e634SDaniel Mack if (iterm->name) 6576bc170e4SDaniel Mack return snd_usb_copy_string_desc(state, iterm->name, 6586bc170e4SDaniel Mack name, maxlen); 659f0b5e634SDaniel Mack 660f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 661f0b5e634SDaniel Mack if (iterm->type >> 16) { 662f0b5e634SDaniel Mack if (term_only) 663f0b5e634SDaniel Mack return 0; 664f0b5e634SDaniel Mack switch (iterm->type >> 16) { 665f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 6666bc170e4SDaniel Mack strcpy(name, "Selector"); 6676bc170e4SDaniel Mack return 8; 66869da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 6696bc170e4SDaniel Mack strcpy(name, "Process Unit"); 6706bc170e4SDaniel Mack return 12; 67169da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 6726bc170e4SDaniel Mack strcpy(name, "Ext Unit"); 6736bc170e4SDaniel Mack return 8; 674f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 6756bc170e4SDaniel Mack strcpy(name, "Mixer"); 6766bc170e4SDaniel Mack return 5; 677f0b5e634SDaniel Mack default: 678f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 679f0b5e634SDaniel Mack } 680f0b5e634SDaniel Mack } 681f0b5e634SDaniel Mack 682f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 683f0b5e634SDaniel Mack case 0x0100: 6846bc170e4SDaniel Mack strcpy(name, "PCM"); 6856bc170e4SDaniel Mack return 3; 686f0b5e634SDaniel Mack case 0x0200: 6876bc170e4SDaniel Mack strcpy(name, "Mic"); 6886bc170e4SDaniel Mack return 3; 689f0b5e634SDaniel Mack case 0x0400: 6906bc170e4SDaniel Mack strcpy(name, "Headset"); 6916bc170e4SDaniel Mack return 7; 692f0b5e634SDaniel Mack case 0x0500: 6936bc170e4SDaniel Mack strcpy(name, "Phone"); 6946bc170e4SDaniel Mack return 5; 695f0b5e634SDaniel Mack } 696f0b5e634SDaniel Mack 6976bc170e4SDaniel Mack for (names = iterm_names; names->type; names++) { 698f0b5e634SDaniel Mack if (names->type == iterm->type) { 699f0b5e634SDaniel Mack strcpy(name, names->name); 700f0b5e634SDaniel Mack return strlen(names->name); 701f0b5e634SDaniel Mack } 702f0b5e634SDaniel Mack } 703f0b5e634SDaniel Mack 7046bc170e4SDaniel Mack return 0; 7056bc170e4SDaniel Mack } 706f0b5e634SDaniel Mack 707f0b5e634SDaniel Mack /* 708f0b5e634SDaniel Mack * parse the source unit recursively until it reaches to a terminal 709f0b5e634SDaniel Mack * or a branched unit. 710f0b5e634SDaniel Mack */ 7116bc170e4SDaniel Mack static int check_input_term(struct mixer_build *state, int id, 7126bc170e4SDaniel Mack struct usb_audio_term *term) 713f0b5e634SDaniel Mack { 71409414207SDaniel Mack int err; 71523caaf19SDaniel Mack void *p1; 716f0b5e634SDaniel Mack 717f0b5e634SDaniel Mack memset(term, 0, sizeof(*term)); 718f0b5e634SDaniel Mack while ((p1 = find_audio_control_unit(state, id)) != NULL) { 71923caaf19SDaniel Mack unsigned char *hdr = p1; 720f0b5e634SDaniel Mack term->id = id; 72123caaf19SDaniel Mack switch (hdr[2]) { 722f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 72323caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 72423caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 72523caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 72623caaf19SDaniel Mack term->channels = d->bNrChannels; 72723caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 72823caaf19SDaniel Mack term->name = d->iTerminal; 72923caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 73023caaf19SDaniel Mack struct uac2_input_terminal_descriptor *d = p1; 7319430e547SJulian Scheel 7329430e547SJulian Scheel /* call recursively to verify that the 7339430e547SJulian Scheel * referenced clock entity is valid */ 7349430e547SJulian Scheel err = check_input_term(state, d->bCSourceID, term); 7359430e547SJulian Scheel if (err < 0) 7369430e547SJulian Scheel return err; 7379430e547SJulian Scheel 7389430e547SJulian Scheel /* save input term properties after recursion, 7399430e547SJulian Scheel * to ensure they are not overriden by the 7409430e547SJulian Scheel * recursion calls */ 7419430e547SJulian Scheel term->id = id; 74223caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 74323caaf19SDaniel Mack term->channels = d->bNrChannels; 74423caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 74523caaf19SDaniel Mack term->name = d->iTerminal; 74623caaf19SDaniel Mack } 747f0b5e634SDaniel Mack return 0; 74823caaf19SDaniel Mack case UAC_FEATURE_UNIT: { 74923caaf19SDaniel Mack /* the header is the same for v1 and v2 */ 75023caaf19SDaniel Mack struct uac_feature_unit_descriptor *d = p1; 7515e688883SDaniel Mack id = d->bSourceID; 752f0b5e634SDaniel Mack break; /* continue to parse */ 753f0b5e634SDaniel Mack } 75423caaf19SDaniel Mack case UAC_MIXER_UNIT: { 75523caaf19SDaniel Mack struct uac_mixer_unit_descriptor *d = p1; 75623caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 75723caaf19SDaniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 75823caaf19SDaniel Mack term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); 75923caaf19SDaniel Mack term->name = uac_mixer_unit_iMixer(d); 760f0b5e634SDaniel Mack return 0; 76123caaf19SDaniel Mack } 76209414207SDaniel Mack case UAC_SELECTOR_UNIT: 76309414207SDaniel Mack case UAC2_CLOCK_SELECTOR: { 76423caaf19SDaniel Mack struct uac_selector_unit_descriptor *d = p1; 76523caaf19SDaniel Mack /* call recursively to retrieve the channel info */ 7664d7b86c9SDaniel Mack err = check_input_term(state, d->baSourceID[0], term); 7674d7b86c9SDaniel Mack if (err < 0) 7684d7b86c9SDaniel Mack return err; 76923caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 77023caaf19SDaniel Mack term->id = id; 77123caaf19SDaniel Mack term->name = uac_selector_unit_iSelector(d); 77223caaf19SDaniel Mack return 0; 77323caaf19SDaniel Mack } 77469da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 7755dae5fd2SEldad Zack case UAC1_EXTENSION_UNIT: 7765dae5fd2SEldad Zack /* UAC2_PROCESSING_UNIT_V2 */ 77761ac5130STorstein Hegge /* UAC2_EFFECT_UNIT */ 77861ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: { 77923caaf19SDaniel Mack struct uac_processing_unit_descriptor *d = p1; 7805dae5fd2SEldad Zack 7815dae5fd2SEldad Zack if (state->mixer->protocol == UAC_VERSION_2 && 7825dae5fd2SEldad Zack hdr[2] == UAC2_EFFECT_UNIT) { 7835dae5fd2SEldad Zack /* UAC2/UAC1 unit IDs overlap here in an 7845dae5fd2SEldad Zack * uncompatible way. Ignore this unit for now. 7855dae5fd2SEldad Zack */ 7865dae5fd2SEldad Zack return 0; 7875dae5fd2SEldad Zack } 7885dae5fd2SEldad Zack 78923caaf19SDaniel Mack if (d->bNrInPins) { 79023caaf19SDaniel Mack id = d->baSourceID[0]; 79123caaf19SDaniel Mack break; /* continue to parse */ 79223caaf19SDaniel Mack } 79323caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 79423caaf19SDaniel Mack term->channels = uac_processing_unit_bNrChannels(d); 79523caaf19SDaniel Mack term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); 79623caaf19SDaniel Mack term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); 79723caaf19SDaniel Mack return 0; 79823caaf19SDaniel Mack } 79909414207SDaniel Mack case UAC2_CLOCK_SOURCE: { 80009414207SDaniel Mack struct uac_clock_source_descriptor *d = p1; 80109414207SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 80209414207SDaniel Mack term->id = id; 80309414207SDaniel Mack term->name = d->iClockSource; 80409414207SDaniel Mack return 0; 80509414207SDaniel Mack } 806f0b5e634SDaniel Mack default: 807f0b5e634SDaniel Mack return -ENODEV; 808f0b5e634SDaniel Mack } 809f0b5e634SDaniel Mack } 810f0b5e634SDaniel Mack return -ENODEV; 811f0b5e634SDaniel Mack } 812f0b5e634SDaniel Mack 813f0b5e634SDaniel Mack /* 814f0b5e634SDaniel Mack * Feature Unit 815f0b5e634SDaniel Mack */ 816f0b5e634SDaniel Mack 817f0b5e634SDaniel Mack /* feature unit control information */ 818f0b5e634SDaniel Mack struct usb_feature_control_info { 819f0b5e634SDaniel Mack const char *name; 820bc18e31cSJulian Scheel int type; /* data type for uac1 */ 821bc18e31cSJulian Scheel int type_uac2; /* data type for uac2 if different from uac1, else -1 */ 822f0b5e634SDaniel Mack }; 823f0b5e634SDaniel Mack 824f0b5e634SDaniel Mack static struct usb_feature_control_info audio_feature_info[] = { 825bc18e31cSJulian Scheel { "Mute", USB_MIXER_INV_BOOLEAN, -1 }, 826bc18e31cSJulian Scheel { "Volume", USB_MIXER_S16, -1 }, 827bc18e31cSJulian Scheel { "Tone Control - Bass", USB_MIXER_S8, -1 }, 828bc18e31cSJulian Scheel { "Tone Control - Mid", USB_MIXER_S8, -1 }, 829bc18e31cSJulian Scheel { "Tone Control - Treble", USB_MIXER_S8, -1 }, 830bc18e31cSJulian Scheel { "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemeted yet */ 831bc18e31cSJulian Scheel { "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, 832bc18e31cSJulian Scheel { "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, 833bc18e31cSJulian Scheel { "Bass Boost", USB_MIXER_BOOLEAN, -1 }, 834bc18e31cSJulian Scheel { "Loudness", USB_MIXER_BOOLEAN, -1 }, 8352e0281d1SDaniel Mack /* UAC2 specific */ 836bc18e31cSJulian Scheel { "Input Gain Control", USB_MIXER_S16, -1 }, 837bc18e31cSJulian Scheel { "Input Gain Pad Control", USB_MIXER_S16, -1 }, 838bc18e31cSJulian Scheel { "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, 839f0b5e634SDaniel Mack }; 840f0b5e634SDaniel Mack 841f0b5e634SDaniel Mack /* private_free callback */ 842eef90451SChris J Arges void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) 843f0b5e634SDaniel Mack { 844f0b5e634SDaniel Mack kfree(kctl->private_data); 845f0b5e634SDaniel Mack kctl->private_data = NULL; 846f0b5e634SDaniel Mack } 847f0b5e634SDaniel Mack 848f0b5e634SDaniel Mack /* 849f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 850f0b5e634SDaniel Mack */ 851f0b5e634SDaniel Mack 852dcaaf9f2STakashi Iwai /* volume control quirks */ 853dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 854dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 855dcaaf9f2STakashi Iwai { 8563360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 8570ba41d91STakashi Iwai switch (chip->usb_id) { 858d50ed624SEldad Zack case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ 859e9a25e04SMatt Gruskin case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ 860d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Duration") == 0) { 861d50ed624SEldad Zack cval->min = 0x0000; 862d50ed624SEldad Zack cval->max = 0xffff; 863d50ed624SEldad Zack cval->res = 0x00e6; 864d50ed624SEldad Zack break; 865d50ed624SEldad Zack } 866d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Volume") == 0 || 867d50ed624SEldad Zack strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 868d50ed624SEldad Zack cval->min = 0x00; 869d50ed624SEldad Zack cval->max = 0xff; 870d50ed624SEldad Zack break; 871d50ed624SEldad Zack } 872d50ed624SEldad Zack if (strstr(kctl->id.name, "Effect Return") != NULL) { 873d50ed624SEldad Zack cval->min = 0xb706; 874d50ed624SEldad Zack cval->max = 0xff7b; 875d50ed624SEldad Zack cval->res = 0x0073; 876d50ed624SEldad Zack break; 877d50ed624SEldad Zack } 878d50ed624SEldad Zack if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 879d50ed624SEldad Zack (strstr(kctl->id.name, "Effect Send") != NULL)) { 880d50ed624SEldad Zack cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ 881d50ed624SEldad Zack cval->max = 0xfcfe; 882d50ed624SEldad Zack cval->res = 0x0073; 883d50ed624SEldad Zack } 884d50ed624SEldad Zack break; 885d50ed624SEldad Zack 886d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 887d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 888d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 8890ba41d91STakashi Iwai usb_audio_info(chip, 8900ba41d91STakashi Iwai "set quirk for FTU Effect Duration\n"); 891d34bf148SFelix Homann cval->min = 0x0000; 892d34bf148SFelix Homann cval->max = 0x7f00; 893d34bf148SFelix Homann cval->res = 0x0100; 894d34bf148SFelix Homann break; 895d34bf148SFelix Homann } 896d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 897d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 8980ba41d91STakashi Iwai usb_audio_info(chip, 8990ba41d91STakashi Iwai "set quirks for FTU Effect Feedback/Volume\n"); 900d34bf148SFelix Homann cval->min = 0x00; 901d34bf148SFelix Homann cval->max = 0x7f; 902d34bf148SFelix Homann break; 903d34bf148SFelix Homann } 904d34bf148SFelix Homann break; 905d34bf148SFelix Homann 906dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 907dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 908dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 909dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 910dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 911dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 912dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 913dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 914dcaaf9f2STakashi Iwai */ 915dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 916dcaaf9f2STakashi Iwai cval->min == -15616) { 9170ba41d91STakashi Iwai usb_audio_info(chip, 918dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 919dcaaf9f2STakashi Iwai cval->max = -256; 920dcaaf9f2STakashi Iwai } 921dcaaf9f2STakashi Iwai break; 922dcaaf9f2STakashi Iwai 923dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 924dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 9250ba41d91STakashi Iwai usb_audio_info(chip, 926dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 927dcaaf9f2STakashi Iwai cval->min = 6080; 928dcaaf9f2STakashi Iwai cval->max = 8768; 929dcaaf9f2STakashi Iwai cval->res = 192; 930dcaaf9f2STakashi Iwai } 931dcaaf9f2STakashi Iwai break; 932dcaaf9f2STakashi Iwai 933e805ca8bSTakashi Iwai case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ 934dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 935dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 93664559311SJason Lee Cragg case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ 93736691e1bSTakashi Iwai case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ 93855c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 93911e7064fSTakashi Iwai case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ 940140d37deSMaksim A. Boyko case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ 9411ef9f058SWolfram Sang case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ 942dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 94382ffb6fcSCon Kolivas case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ 944dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 945dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 94682ffb6fcSCon Kolivas * Probably there is some logitech magic behind this number --fishor 947dcaaf9f2STakashi Iwai */ 948dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 9490ba41d91STakashi Iwai usb_audio_info(chip, 950dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 951dcaaf9f2STakashi Iwai cval->res = 384; 952dcaaf9f2STakashi Iwai } 953dcaaf9f2STakashi Iwai break; 954dcaaf9f2STakashi Iwai } 955dcaaf9f2STakashi Iwai } 956dcaaf9f2STakashi Iwai 957f0b5e634SDaniel Mack /* 958f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 959f0b5e634SDaniel Mack */ 960dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 961dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 962f0b5e634SDaniel Mack { 963f0b5e634SDaniel Mack /* for failsafe */ 964f0b5e634SDaniel Mack cval->min = default_min; 965f0b5e634SDaniel Mack cval->max = cval->min + 1; 966f0b5e634SDaniel Mack cval->res = 1; 967f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 968f0b5e634SDaniel Mack 969f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 970f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 971f0b5e634SDaniel Mack cval->initialized = 1; 972f0b5e634SDaniel Mack } else { 973f0b5e634SDaniel Mack int minchn = 0; 974f0b5e634SDaniel Mack if (cval->cmask) { 975f0b5e634SDaniel Mack int i; 976f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 977f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 978f0b5e634SDaniel Mack minchn = i + 1; 979f0b5e634SDaniel Mack break; 980f0b5e634SDaniel Mack } 981f0b5e634SDaniel Mack } 982f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 983f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 9843360b84bSTakashi Iwai usb_audio_err(cval->head.mixer->chip, 9850ba41d91STakashi Iwai "%d:%d: cannot get min/max values for control %d (id %d)\n", 9863360b84bSTakashi Iwai cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), 9873360b84bSTakashi Iwai cval->control, cval->head.id); 988f0b5e634SDaniel Mack return -EINVAL; 989f0b5e634SDaniel Mack } 9906bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 9916bc170e4SDaniel Mack (cval->control << 8) | minchn, 9926bc170e4SDaniel Mack &cval->res) < 0) { 993f0b5e634SDaniel Mack cval->res = 1; 994f0b5e634SDaniel Mack } else { 995f0b5e634SDaniel Mack int last_valid_res = cval->res; 996f0b5e634SDaniel Mack 997f0b5e634SDaniel Mack while (cval->res > 1) { 998f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 9996bc170e4SDaniel Mack (cval->control << 8) | minchn, 10006bc170e4SDaniel Mack cval->res / 2) < 0) 1001f0b5e634SDaniel Mack break; 1002f0b5e634SDaniel Mack cval->res /= 2; 1003f0b5e634SDaniel Mack } 10046bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 10056bc170e4SDaniel Mack (cval->control << 8) | minchn, &cval->res) < 0) 1006f0b5e634SDaniel Mack cval->res = last_valid_res; 1007f0b5e634SDaniel Mack } 1008f0b5e634SDaniel Mack if (cval->res == 0) 1009f0b5e634SDaniel Mack cval->res = 1; 1010f0b5e634SDaniel Mack 1011f0b5e634SDaniel Mack /* Additional checks for the proper resolution 1012f0b5e634SDaniel Mack * 1013f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 1014f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 1015f0b5e634SDaniel Mack * to the lower aligned value. 1016f0b5e634SDaniel Mack */ 1017f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 1018f0b5e634SDaniel Mack int last_valid_res = cval->res; 1019f0b5e634SDaniel Mack int saved, test, check; 1020f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &saved); 1021f0b5e634SDaniel Mack for (;;) { 1022f0b5e634SDaniel Mack test = saved; 1023f0b5e634SDaniel Mack if (test < cval->max) 1024f0b5e634SDaniel Mack test += cval->res; 1025f0b5e634SDaniel Mack else 1026f0b5e634SDaniel Mack test -= cval->res; 1027f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 1028eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, test) || 1029f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 1030f0b5e634SDaniel Mack cval->res = last_valid_res; 1031f0b5e634SDaniel Mack break; 1032f0b5e634SDaniel Mack } 1033f0b5e634SDaniel Mack if (test == check) 1034f0b5e634SDaniel Mack break; 1035f0b5e634SDaniel Mack cval->res *= 2; 1036f0b5e634SDaniel Mack } 1037eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, saved); 1038f0b5e634SDaniel Mack } 1039f0b5e634SDaniel Mack 1040f0b5e634SDaniel Mack cval->initialized = 1; 1041f0b5e634SDaniel Mack } 1042f0b5e634SDaniel Mack 1043dcaaf9f2STakashi Iwai if (kctl) 1044dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 1045dcaaf9f2STakashi Iwai 1046f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 1047f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 1048f0b5e634SDaniel Mack */ 1049f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 1050f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 1051f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1052f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 1053f0b5e634SDaniel Mack if (cval->dBmin < 0) 1054f0b5e634SDaniel Mack cval->dBmax = 0; 1055f0b5e634SDaniel Mack else if (cval->dBmin > 0) 1056f0b5e634SDaniel Mack cval->dBmin = 0; 1057f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1058f0b5e634SDaniel Mack /* totally crap, return an error */ 1059f0b5e634SDaniel Mack return -EINVAL; 1060f0b5e634SDaniel Mack } 1061f0b5e634SDaniel Mack } 1062f0b5e634SDaniel Mack 1063f0b5e634SDaniel Mack return 0; 1064f0b5e634SDaniel Mack } 1065f0b5e634SDaniel Mack 1066dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 1067f0b5e634SDaniel Mack 1068f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 10696bc170e4SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, 10706bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 1071f0b5e634SDaniel Mack { 1072f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1073f0b5e634SDaniel Mack 1074f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1075f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 1076f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1077f0b5e634SDaniel Mack else 1078f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1079f0b5e634SDaniel Mack uinfo->count = cval->channels; 1080f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1081f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1082f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1083f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 1084f0b5e634SDaniel Mack } else { 10859fcd0ab1STakashi Iwai if (!cval->initialized) { 1086dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 10879fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 10889fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 10899fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 10909fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 10913360b84bSTakashi Iwai snd_ctl_notify(cval->head.mixer->chip->card, 10929fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 10939fcd0ab1STakashi Iwai &kcontrol->id); 10949fcd0ab1STakashi Iwai } 10959fcd0ab1STakashi Iwai } 1096f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1097f0b5e634SDaniel Mack uinfo->value.integer.max = 1098f0b5e634SDaniel Mack (cval->max - cval->min + cval->res - 1) / cval->res; 1099f0b5e634SDaniel Mack } 1100f0b5e634SDaniel Mack return 0; 1101f0b5e634SDaniel Mack } 1102f0b5e634SDaniel Mack 1103f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 11046bc170e4SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, 11056bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1106f0b5e634SDaniel Mack { 1107f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1108f0b5e634SDaniel Mack int c, cnt, val, err; 1109f0b5e634SDaniel Mack 1110f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1111f0b5e634SDaniel Mack if (cval->cmask) { 1112f0b5e634SDaniel Mack cnt = 0; 1113f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1114f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1115f0b5e634SDaniel Mack continue; 1116eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); 1117f0b5e634SDaniel Mack if (err < 0) 11185aeee342STakashi Iwai return filter_error(cval, err); 1119f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1120f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 1121f0b5e634SDaniel Mack cnt++; 1122f0b5e634SDaniel Mack } 1123f0b5e634SDaniel Mack return 0; 1124f0b5e634SDaniel Mack } else { 1125f0b5e634SDaniel Mack /* master channel */ 1126eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 1127f0b5e634SDaniel Mack if (err < 0) 11285aeee342STakashi Iwai return filter_error(cval, err); 1129f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1130f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1131f0b5e634SDaniel Mack } 1132f0b5e634SDaniel Mack return 0; 1133f0b5e634SDaniel Mack } 1134f0b5e634SDaniel Mack 1135f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 11366bc170e4SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, 11376bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1138f0b5e634SDaniel Mack { 1139f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1140f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1141f0b5e634SDaniel Mack int changed = 0; 1142f0b5e634SDaniel Mack 1143f0b5e634SDaniel Mack if (cval->cmask) { 1144f0b5e634SDaniel Mack cnt = 0; 1145f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1146f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1147f0b5e634SDaniel Mack continue; 1148eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); 1149f0b5e634SDaniel Mack if (err < 0) 11505aeee342STakashi Iwai return filter_error(cval, err); 1151f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1152f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1153f0b5e634SDaniel Mack if (oval != val) { 1154eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); 1155f0b5e634SDaniel Mack changed = 1; 1156f0b5e634SDaniel Mack } 1157f0b5e634SDaniel Mack cnt++; 1158f0b5e634SDaniel Mack } 1159f0b5e634SDaniel Mack } else { 1160f0b5e634SDaniel Mack /* master channel */ 1161eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); 1162f0b5e634SDaniel Mack if (err < 0) 11635aeee342STakashi Iwai return filter_error(cval, err); 1164f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1165f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1166f0b5e634SDaniel Mack if (val != oval) { 1167eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, 0, 0, val); 1168f0b5e634SDaniel Mack changed = 1; 1169f0b5e634SDaniel Mack } 1170f0b5e634SDaniel Mack } 1171f0b5e634SDaniel Mack return changed; 1172f0b5e634SDaniel Mack } 1173f0b5e634SDaniel Mack 1174f0b5e634SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl = { 1175f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1176f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1177f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1178f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1179f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1180f0b5e634SDaniel Mack }; 1181f0b5e634SDaniel Mack 118223caaf19SDaniel Mack /* the read-only variant */ 11838fdaebbbSBhumika Goyal static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 118423caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 118523caaf19SDaniel Mack .name = "", /* will be filled later manually */ 118623caaf19SDaniel Mack .info = mixer_ctl_feature_info, 118723caaf19SDaniel Mack .get = mixer_ctl_feature_get, 118823caaf19SDaniel Mack .put = NULL, 118923caaf19SDaniel Mack }; 119023caaf19SDaniel Mack 11916bc170e4SDaniel Mack /* 11926bc170e4SDaniel Mack * This symbol is exported in order to allow the mixer quirks to 11936bc170e4SDaniel Mack * hook up to the standard feature unit control mechanism 11946bc170e4SDaniel Mack */ 11959e38658fSDaniel Mack struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1196f0b5e634SDaniel Mack 1197f0b5e634SDaniel Mack /* 1198f0b5e634SDaniel Mack * build a feature control 1199f0b5e634SDaniel Mack */ 1200f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1201f0b5e634SDaniel Mack { 1202f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1203f0b5e634SDaniel Mack } 1204f0b5e634SDaniel Mack 12056bc170e4SDaniel Mack /* 12066bc170e4SDaniel Mack * A lot of headsets/headphones have a "Speaker" mixer. Make sure we 12076bc170e4SDaniel Mack * rename it to "Headphone". We determine if something is a headphone 12086bc170e4SDaniel Mack * similar to how udev determines form factor. 12096bc170e4SDaniel Mack */ 12109b4ef977SDavid Henningsson static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, 12119b4ef977SDavid Henningsson struct snd_card *card) 12129b4ef977SDavid Henningsson { 12139b4ef977SDavid Henningsson const char *names_to_check[] = { 12149b4ef977SDavid Henningsson "Headset", "headset", "Headphone", "headphone", NULL}; 12159b4ef977SDavid Henningsson const char **s; 1216e0f17c75SPeter Senna Tschudin bool found = false; 12179b4ef977SDavid Henningsson 12189b4ef977SDavid Henningsson if (strcmp("Speaker", kctl->id.name)) 12199b4ef977SDavid Henningsson return; 12209b4ef977SDavid Henningsson 12219b4ef977SDavid Henningsson for (s = names_to_check; *s; s++) 12229b4ef977SDavid Henningsson if (strstr(card->shortname, *s)) { 1223e0f17c75SPeter Senna Tschudin found = true; 12249b4ef977SDavid Henningsson break; 12259b4ef977SDavid Henningsson } 12269b4ef977SDavid Henningsson 12279b4ef977SDavid Henningsson if (!found) 12289b4ef977SDavid Henningsson return; 12299b4ef977SDavid Henningsson 12309b4ef977SDavid Henningsson strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); 12319b4ef977SDavid Henningsson } 12329b4ef977SDavid Henningsson 123399fc8645SDaniel Mack static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 1234f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 123523caaf19SDaniel Mack struct usb_audio_term *iterm, int unitid, 1236a6a33259SDaniel Mack int readonly_mask) 1237f0b5e634SDaniel Mack { 123899fc8645SDaniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 1239bc18e31cSJulian Scheel struct usb_feature_control_info *ctl_info; 1240f0b5e634SDaniel Mack unsigned int len = 0; 1241f0b5e634SDaniel Mack int mapped_name = 0; 124299fc8645SDaniel Mack int nameid = uac_feature_unit_iFeature(desc); 1243f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1244f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1245f0b5e634SDaniel Mack const struct usbmix_name_map *map; 124680acefffSAlexey Fisher unsigned int range; 1247f0b5e634SDaniel Mack 1248f0b5e634SDaniel Mack control++; /* change from zero-based to 1-based value */ 1249f0b5e634SDaniel Mack 125065f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1251f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1252f0b5e634SDaniel Mack return; 1253f0b5e634SDaniel Mack } 1254f0b5e634SDaniel Mack 1255f0b5e634SDaniel Mack map = find_map(state, unitid, control); 1256f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1257f0b5e634SDaniel Mack return; 1258f0b5e634SDaniel Mack 1259f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1260a860d95fSDaniel Mack if (!cval) 1261f0b5e634SDaniel Mack return; 12623360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 1263f0b5e634SDaniel Mack cval->control = control; 1264f0b5e634SDaniel Mack cval->cmask = ctl_mask; 1265bc18e31cSJulian Scheel ctl_info = &audio_feature_info[control-1]; 1266bc18e31cSJulian Scheel if (state->mixer->protocol == UAC_VERSION_1) 1267bc18e31cSJulian Scheel cval->val_type = ctl_info->type; 1268bc18e31cSJulian Scheel else /* UAC_VERSION_2 */ 1269bc18e31cSJulian Scheel cval->val_type = ctl_info->type_uac2 >= 0 ? 1270bc18e31cSJulian Scheel ctl_info->type_uac2 : ctl_info->type; 1271bc18e31cSJulian Scheel 1272a6a33259SDaniel Mack if (ctl_mask == 0) { 1273f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1274a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1275a6a33259SDaniel Mack } else { 1276f0b5e634SDaniel Mack int i, c = 0; 1277f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1278f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1279f0b5e634SDaniel Mack c++; 1280f0b5e634SDaniel Mack cval->channels = c; 1281a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1282f0b5e634SDaniel Mack } 1283f0b5e634SDaniel Mack 12846bc170e4SDaniel Mack /* 12856bc170e4SDaniel Mack * If all channels in the mask are marked read-only, make the control 1286eef90451SChris J Arges * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't 12876bc170e4SDaniel Mack * issue write commands to read-only channels. 12886bc170e4SDaniel Mack */ 1289a6a33259SDaniel Mack if (cval->channels == readonly_mask) 129023caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 129123caaf19SDaniel Mack else 1292f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 129323caaf19SDaniel Mack 1294f0b5e634SDaniel Mack if (!kctl) { 12950ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 1296f0b5e634SDaniel Mack kfree(cval); 1297f0b5e634SDaniel Mack return; 1298f0b5e634SDaniel Mack } 1299eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1300f0b5e634SDaniel Mack 1301f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1302f0b5e634SDaniel Mack mapped_name = len != 0; 1303f0b5e634SDaniel Mack if (!len && nameid) 1304f0b5e634SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, 1305f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1306f0b5e634SDaniel Mack 1307f0b5e634SDaniel Mack switch (control) { 130865f25da4SDaniel Mack case UAC_FU_MUTE: 130965f25da4SDaniel Mack case UAC_FU_VOLUME: 13106bc170e4SDaniel Mack /* 13116bc170e4SDaniel Mack * determine the control name. the rule is: 1312f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1313f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1314f0b5e634SDaniel Mack * of terminal type. 1315f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1316f0b5e634SDaniel Mack * - otherwise, anonymous name. 1317f0b5e634SDaniel Mack */ 1318f0b5e634SDaniel Mack if (!len) { 13196bc170e4SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, 13206bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1321f0b5e634SDaniel Mack if (!len) 13226bc170e4SDaniel Mack len = get_term_name(state, &state->oterm, 13236bc170e4SDaniel Mack kctl->id.name, 13246bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1325f0b5e634SDaniel Mack if (!len) 132649fd46d2SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1327f0b5e634SDaniel Mack "Feature %d", unitid); 1328f0b5e634SDaniel Mack } 13299b4ef977SDavid Henningsson 13309b4ef977SDavid Henningsson if (!mapped_name) 13319b4ef977SDavid Henningsson check_no_speaker_on_headset(kctl, state->mixer->chip->card); 13329b4ef977SDavid Henningsson 13336bc170e4SDaniel Mack /* 13346bc170e4SDaniel Mack * determine the stream direction: 1335f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1336f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1337f0b5e634SDaniel Mack */ 1338f0b5e634SDaniel Mack if (!mapped_name && !(state->oterm.type >> 16)) { 13396bc170e4SDaniel Mack if ((state->oterm.type & 0xff00) == 0x0100) 134049fd46d2SDaniel Mack append_ctl_name(kctl, " Capture"); 13416bc170e4SDaniel Mack else 134249fd46d2SDaniel Mack append_ctl_name(kctl, " Playback"); 1343f0b5e634SDaniel Mack } 134465f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1345f0b5e634SDaniel Mack " Switch" : " Volume"); 1346e182534dSTakashi Iwai break; 1347e182534dSTakashi Iwai default: 1348e182534dSTakashi Iwai if (!len) 1349e182534dSTakashi Iwai strlcpy(kctl->id.name, audio_feature_info[control-1].name, 1350e182534dSTakashi Iwai sizeof(kctl->id.name)); 1351e182534dSTakashi Iwai break; 1352e182534dSTakashi Iwai } 1353e182534dSTakashi Iwai 1354e182534dSTakashi Iwai /* get min/max values */ 1355e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1356e182534dSTakashi Iwai 135765f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 135859bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 135938b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1360285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1361f0b5e634SDaniel Mack kctl->vd[0].access |= 1362f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1363f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 136459bb7f0eSTakashi Iwai } 1365f0b5e634SDaniel Mack } 1366f0b5e634SDaniel Mack 136742e3121dSAnssi Hannula snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl); 136842e3121dSAnssi Hannula 136980acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 13706bc170e4SDaniel Mack /* 13716bc170e4SDaniel Mack * Are there devices with volume range more than 255? I use a bit more 137280acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 137380acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 137480acefffSAlexey Fisher */ 137580acefffSAlexey Fisher if (range > 384) { 13766bc170e4SDaniel Mack usb_audio_warn(state->chip, 137782c1cf0aSMichał Mirosław "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", 137880acefffSAlexey Fisher range); 137982c1cf0aSMichał Mirosław usb_audio_warn(state->chip, 138082c1cf0aSMichał Mirosław "[%d] FU [%s] ch = %d, val = %d/%d/%d", 13813360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 138280acefffSAlexey Fisher cval->min, cval->max, cval->res); 138380acefffSAlexey Fisher } 138480acefffSAlexey Fisher 13850ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 13863360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 13876bc170e4SDaniel Mack cval->min, cval->max, cval->res); 13883360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1389f0b5e634SDaniel Mack } 1390f0b5e634SDaniel Mack 1391cddaafb9SDaniel Mack static int parse_clock_source_unit(struct mixer_build *state, int unitid, 1392cddaafb9SDaniel Mack void *_ftr) 1393cddaafb9SDaniel Mack { 1394cddaafb9SDaniel Mack struct uac_clock_source_descriptor *hdr = _ftr; 1395cddaafb9SDaniel Mack struct usb_mixer_elem_info *cval; 1396cddaafb9SDaniel Mack struct snd_kcontrol *kctl; 1397cddaafb9SDaniel Mack char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 1398cddaafb9SDaniel Mack int ret; 1399cddaafb9SDaniel Mack 1400cddaafb9SDaniel Mack if (state->mixer->protocol != UAC_VERSION_2) 1401cddaafb9SDaniel Mack return -EINVAL; 1402cddaafb9SDaniel Mack 1403cddaafb9SDaniel Mack if (hdr->bLength != sizeof(*hdr)) { 1404cddaafb9SDaniel Mack usb_audio_dbg(state->chip, 1405cddaafb9SDaniel Mack "Bogus clock source descriptor length of %d, ignoring.\n", 1406cddaafb9SDaniel Mack hdr->bLength); 1407cddaafb9SDaniel Mack return 0; 1408cddaafb9SDaniel Mack } 1409cddaafb9SDaniel Mack 1410cddaafb9SDaniel Mack /* 1411cddaafb9SDaniel Mack * The only property of this unit we are interested in is the 1412cddaafb9SDaniel Mack * clock source validity. If that isn't readable, just bail out. 1413cddaafb9SDaniel Mack */ 1414cddaafb9SDaniel Mack if (!uac2_control_is_readable(hdr->bmControls, 1415cddaafb9SDaniel Mack ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) 1416cddaafb9SDaniel Mack return 0; 1417cddaafb9SDaniel Mack 1418cddaafb9SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1419cddaafb9SDaniel Mack if (!cval) 1420cddaafb9SDaniel Mack return -ENOMEM; 1421cddaafb9SDaniel Mack 1422cddaafb9SDaniel Mack snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); 1423cddaafb9SDaniel Mack 1424cddaafb9SDaniel Mack cval->min = 0; 1425cddaafb9SDaniel Mack cval->max = 1; 1426cddaafb9SDaniel Mack cval->channels = 1; 1427cddaafb9SDaniel Mack cval->val_type = USB_MIXER_BOOLEAN; 1428cddaafb9SDaniel Mack cval->control = UAC2_CS_CONTROL_CLOCK_VALID; 1429cddaafb9SDaniel Mack 1430cddaafb9SDaniel Mack if (uac2_control_is_writeable(hdr->bmControls, 1431cddaafb9SDaniel Mack ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) 1432cddaafb9SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1433cddaafb9SDaniel Mack else { 1434cddaafb9SDaniel Mack cval->master_readonly = 1; 1435cddaafb9SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 1436cddaafb9SDaniel Mack } 1437cddaafb9SDaniel Mack 1438cddaafb9SDaniel Mack if (!kctl) { 1439cddaafb9SDaniel Mack kfree(cval); 1440cddaafb9SDaniel Mack return -ENOMEM; 1441cddaafb9SDaniel Mack } 1442cddaafb9SDaniel Mack 1443cddaafb9SDaniel Mack kctl->private_free = snd_usb_mixer_elem_free; 1444cddaafb9SDaniel Mack ret = snd_usb_copy_string_desc(state, hdr->iClockSource, 1445cddaafb9SDaniel Mack name, sizeof(name)); 1446cddaafb9SDaniel Mack if (ret > 0) 1447cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1448cddaafb9SDaniel Mack "%s Validity", name); 1449cddaafb9SDaniel Mack else 1450cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1451cddaafb9SDaniel Mack "Clock Source %d Validity", hdr->bClockID); 1452cddaafb9SDaniel Mack 1453cddaafb9SDaniel Mack return snd_usb_mixer_add_control(&cval->head, kctl); 1454cddaafb9SDaniel Mack } 1455cddaafb9SDaniel Mack 1456f0b5e634SDaniel Mack /* 1457f0b5e634SDaniel Mack * parse a feature unit 1458f0b5e634SDaniel Mack * 145925985edcSLucas De Marchi * most of controls are defined here. 1460f0b5e634SDaniel Mack */ 14616bc170e4SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, 14626bc170e4SDaniel Mack void *_ftr) 1463f0b5e634SDaniel Mack { 1464f0b5e634SDaniel Mack int channels, i, j; 1465f0b5e634SDaniel Mack struct usb_audio_term iterm; 1466f0b5e634SDaniel Mack unsigned int master_bits, first_ch_bits; 1467f0b5e634SDaniel Mack int err, csize; 146823caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 146923caaf19SDaniel Mack __u8 *bmaControls; 1470f0b5e634SDaniel Mack 147123caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1472d937cd67STakashi Iwai if (hdr->bLength < 7) { 1473d937cd67STakashi Iwai usb_audio_err(state->chip, 1474d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1475d937cd67STakashi Iwai unitid); 1476d937cd67STakashi Iwai return -EINVAL; 1477d937cd67STakashi Iwai } 147823caaf19SDaniel Mack csize = hdr->bControlSize; 1479*3c02a6d9STakashi Iwai if (!csize) { 14800ba41d91STakashi Iwai usb_audio_dbg(state->chip, 1481*3c02a6d9STakashi Iwai "unit %u: invalid bControlSize == 0\n", 14820ba41d91STakashi Iwai unitid); 148360c961a9SNicolai Krakowiak return -EINVAL; 148460c961a9SNicolai Krakowiak } 148523caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 148623caaf19SDaniel Mack bmaControls = hdr->bmaControls; 1487d56268fbSClemens Ladisch if (hdr->bLength < 7 + csize) { 14880ba41d91STakashi Iwai usb_audio_err(state->chip, 14890ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1490d56268fbSClemens Ladisch unitid); 1491d56268fbSClemens Ladisch return -EINVAL; 1492d56268fbSClemens Ladisch } 149323caaf19SDaniel Mack } else { 149423caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 1495d937cd67STakashi Iwai if (hdr->bLength < 6) { 1496d937cd67STakashi Iwai usb_audio_err(state->chip, 1497d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1498d937cd67STakashi Iwai unitid); 1499d937cd67STakashi Iwai return -EINVAL; 1500d937cd67STakashi Iwai } 150123caaf19SDaniel Mack csize = 4; 1502e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 150323caaf19SDaniel Mack bmaControls = ftr->bmaControls; 1504d56268fbSClemens Ladisch if (hdr->bLength < 6 + csize) { 15050ba41d91STakashi Iwai usb_audio_err(state->chip, 15060ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1507d56268fbSClemens Ladisch unitid); 1508f0b5e634SDaniel Mack return -EINVAL; 1509f0b5e634SDaniel Mack } 1510d56268fbSClemens Ladisch } 1511f0b5e634SDaniel Mack 1512f0b5e634SDaniel Mack /* parse the source unit */ 151323caaf19SDaniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 1514f0b5e634SDaniel Mack return err; 1515f0b5e634SDaniel Mack 1516f0b5e634SDaniel Mack /* determine the input source type and name */ 15174d7b86c9SDaniel Mack err = check_input_term(state, hdr->bSourceID, &iterm); 15184d7b86c9SDaniel Mack if (err < 0) 15194d7b86c9SDaniel Mack return err; 1520f0b5e634SDaniel Mack 152123caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 1522f0b5e634SDaniel Mack /* master configuration quirks */ 1523f0b5e634SDaniel Mack switch (state->chip->usb_id) { 1524f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 15250ba41d91STakashi Iwai usb_audio_info(state->chip, 1526f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 1527f0b5e634SDaniel Mack /* disable non-functional volume control */ 152865f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 1529f0b5e634SDaniel Mack break; 1530c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 15310ba41d91STakashi Iwai usb_audio_info(state->chip, 1532c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 1533c1051439SDavid Henningsson /* disable non-functional volume control */ 1534c1051439SDavid Henningsson channels = 0; 1535c1051439SDavid Henningsson break; 1536c1051439SDavid Henningsson 1537f0b5e634SDaniel Mack } 1538f0b5e634SDaniel Mack if (channels > 0) 153923caaf19SDaniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 1540f0b5e634SDaniel Mack else 1541f0b5e634SDaniel Mack first_ch_bits = 0; 154223caaf19SDaniel Mack 154323caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1544f0b5e634SDaniel Mack /* check all control types */ 1545f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 1546f0b5e634SDaniel Mack unsigned int ch_bits = 0; 1547f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 15486bc170e4SDaniel Mack unsigned int mask; 15496bc170e4SDaniel Mack 15506bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 15516bc170e4SDaniel Mack csize * (j+1), csize); 1552f0b5e634SDaniel Mack if (mask & (1 << i)) 1553f0b5e634SDaniel Mack ch_bits |= (1 << j); 1554f0b5e634SDaniel Mack } 155523caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 15566bc170e4SDaniel Mack 15576bc170e4SDaniel Mack /* 15586bc170e4SDaniel Mack * The first channel must be set 15596bc170e4SDaniel Mack * (for ease of programming). 15606bc170e4SDaniel Mack */ 15616bc170e4SDaniel Mack if (ch_bits & 1) 15626bc170e4SDaniel Mack build_feature_ctl(state, _ftr, ch_bits, i, 15636bc170e4SDaniel Mack &iterm, unitid, 0); 1564f0b5e634SDaniel Mack if (master_bits & (1 << i)) 15656bc170e4SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, 15666bc170e4SDaniel Mack unitid, 0); 156723caaf19SDaniel Mack } 156823caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 1569d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 157023caaf19SDaniel Mack unsigned int ch_bits = 0; 157123caaf19SDaniel Mack unsigned int ch_read_only = 0; 157223caaf19SDaniel Mack 157323caaf19SDaniel Mack for (j = 0; j < channels; j++) { 15746bc170e4SDaniel Mack unsigned int mask; 15756bc170e4SDaniel Mack 15766bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 15776bc170e4SDaniel Mack csize * (j+1), csize); 1578dcbe7bcfSDaniel Mack if (uac2_control_is_readable(mask, i)) { 157923caaf19SDaniel Mack ch_bits |= (1 << j); 1580dcbe7bcfSDaniel Mack if (!uac2_control_is_writeable(mask, i)) 158123caaf19SDaniel Mack ch_read_only |= (1 << j); 158223caaf19SDaniel Mack } 158323caaf19SDaniel Mack } 158423caaf19SDaniel Mack 15856bc170e4SDaniel Mack /* 15866bc170e4SDaniel Mack * NOTE: build_feature_ctl() will mark the control 15876bc170e4SDaniel Mack * read-only if all channels are marked read-only in 15886bc170e4SDaniel Mack * the descriptors. Otherwise, the control will be 15896bc170e4SDaniel Mack * reported as writeable, but the driver will not 15906bc170e4SDaniel Mack * actually issue a write command for read-only 15916bc170e4SDaniel Mack * channels. 15926bc170e4SDaniel Mack */ 15936bc170e4SDaniel Mack 15946bc170e4SDaniel Mack /* 15956bc170e4SDaniel Mack * The first channel must be set 15966bc170e4SDaniel Mack * (for ease of programming). 15976bc170e4SDaniel Mack */ 15986bc170e4SDaniel Mack if (ch_bits & 1) 15996bc170e4SDaniel Mack build_feature_ctl(state, _ftr, ch_bits, i, 16006bc170e4SDaniel Mack &iterm, unitid, ch_read_only); 1601dcbe7bcfSDaniel Mack if (uac2_control_is_readable(master_bits, i)) 160223caaf19SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 1603dcbe7bcfSDaniel Mack !uac2_control_is_writeable(master_bits, i)); 160423caaf19SDaniel Mack } 1605f0b5e634SDaniel Mack } 1606f0b5e634SDaniel Mack 1607f0b5e634SDaniel Mack return 0; 1608f0b5e634SDaniel Mack } 1609f0b5e634SDaniel Mack 1610f0b5e634SDaniel Mack /* 1611f0b5e634SDaniel Mack * Mixer Unit 1612f0b5e634SDaniel Mack */ 1613f0b5e634SDaniel Mack 1614f0b5e634SDaniel Mack /* 1615f0b5e634SDaniel Mack * build a mixer unit control 1616f0b5e634SDaniel Mack * 1617f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 1618f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 1619f0b5e634SDaniel Mack */ 162099fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 162199fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 1622f0b5e634SDaniel Mack int in_pin, int in_ch, int unitid, 1623f0b5e634SDaniel Mack struct usb_audio_term *iterm) 1624f0b5e634SDaniel Mack { 1625f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 162699fc8645SDaniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 1627f0b5e634SDaniel Mack unsigned int i, len; 1628f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1629f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1630f0b5e634SDaniel Mack 1631f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 1632f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1633f0b5e634SDaniel Mack return; 1634f0b5e634SDaniel Mack 1635f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1636f0b5e634SDaniel Mack if (!cval) 1637f0b5e634SDaniel Mack return; 1638f0b5e634SDaniel Mack 16393360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 1640f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 1641f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 1642f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 16436bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); 16446bc170e4SDaniel Mack 16456bc170e4SDaniel Mack if (check_matrix_bitmap(c, in_ch, i, num_outs)) { 1646f0b5e634SDaniel Mack cval->cmask |= (1 << i); 1647f0b5e634SDaniel Mack cval->channels++; 1648f0b5e634SDaniel Mack } 1649f0b5e634SDaniel Mack } 1650f0b5e634SDaniel Mack 1651f0b5e634SDaniel Mack /* get min/max values */ 1652f0b5e634SDaniel Mack get_min_max(cval, 0); 1653f0b5e634SDaniel Mack 1654f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1655f0b5e634SDaniel Mack if (!kctl) { 16560ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 1657f0b5e634SDaniel Mack kfree(cval); 1658f0b5e634SDaniel Mack return; 1659f0b5e634SDaniel Mack } 1660eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1661f0b5e634SDaniel Mack 1662f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1663f0b5e634SDaniel Mack if (!len) 16646bc170e4SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, 16656bc170e4SDaniel Mack sizeof(kctl->id.name), 0); 1666f0b5e634SDaniel Mack if (!len) 1667f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 1668f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 1669f0b5e634SDaniel Mack 16700ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", 16713360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); 16723360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1673f0b5e634SDaniel Mack } 1674f0b5e634SDaniel Mack 1675f0b5e634SDaniel Mack /* 1676f0b5e634SDaniel Mack * parse a mixer unit 1677f0b5e634SDaniel Mack */ 16786bc170e4SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, 16796bc170e4SDaniel Mack void *raw_desc) 1680f0b5e634SDaniel Mack { 168199fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 1682f0b5e634SDaniel Mack struct usb_audio_term iterm; 1683f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 1684f0b5e634SDaniel Mack int pin, ich, err; 1685f0b5e634SDaniel Mack 16866bc170e4SDaniel Mack if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || 16876bc170e4SDaniel Mack !(num_outs = uac_mixer_unit_bNrChannels(desc))) { 16886bc170e4SDaniel Mack usb_audio_err(state->chip, 16896bc170e4SDaniel Mack "invalid MIXER UNIT descriptor %d\n", 16906bc170e4SDaniel Mack unitid); 1691f0b5e634SDaniel Mack return -EINVAL; 1692f0b5e634SDaniel Mack } 1693f0b5e634SDaniel Mack 1694f0b5e634SDaniel Mack num_ins = 0; 1695f0b5e634SDaniel Mack ich = 0; 1696f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 169799fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 1698f0b5e634SDaniel Mack if (err < 0) 1699284a8dd6SMark Hills continue; 1700ea114fc2SClemens Ladisch /* no bmControls field (e.g. Maya44) -> ignore */ 1701ea114fc2SClemens Ladisch if (desc->bLength <= 10 + input_pins) 1702ea114fc2SClemens Ladisch continue; 170399fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 1704f0b5e634SDaniel Mack if (err < 0) 1705f0b5e634SDaniel Mack return err; 1706f0b5e634SDaniel Mack num_ins += iterm.channels; 17076bc170e4SDaniel Mack for (; ich < num_ins; ich++) { 1708f0b5e634SDaniel Mack int och, ich_has_controls = 0; 1709f0b5e634SDaniel Mack 17106bc170e4SDaniel Mack for (och = 0; och < num_outs; och++) { 17116bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, 17126bc170e4SDaniel Mack state->mixer->protocol); 17136bc170e4SDaniel Mack 17146bc170e4SDaniel Mack if (check_matrix_bitmap(c, ich, och, num_outs)) { 1715f0b5e634SDaniel Mack ich_has_controls = 1; 1716f0b5e634SDaniel Mack break; 1717f0b5e634SDaniel Mack } 1718f0b5e634SDaniel Mack } 1719f0b5e634SDaniel Mack if (ich_has_controls) 1720f0b5e634SDaniel Mack build_mixer_unit_ctl(state, desc, pin, ich, 1721f0b5e634SDaniel Mack unitid, &iterm); 1722f0b5e634SDaniel Mack } 1723f0b5e634SDaniel Mack } 1724f0b5e634SDaniel Mack return 0; 1725f0b5e634SDaniel Mack } 1726f0b5e634SDaniel Mack 1727f0b5e634SDaniel Mack /* 1728f0b5e634SDaniel Mack * Processing Unit / Extension Unit 1729f0b5e634SDaniel Mack */ 1730f0b5e634SDaniel Mack 1731f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 17326bc170e4SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, 17336bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1734f0b5e634SDaniel Mack { 1735f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1736f0b5e634SDaniel Mack int err, val; 1737f0b5e634SDaniel Mack 1738f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 17395aeee342STakashi Iwai if (err < 0) { 1740f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 17415aeee342STakashi Iwai return filter_error(cval, err); 1742f0b5e634SDaniel Mack } 1743f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1744f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1745f0b5e634SDaniel Mack return 0; 1746f0b5e634SDaniel Mack } 1747f0b5e634SDaniel Mack 1748f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 17496bc170e4SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, 17506bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1751f0b5e634SDaniel Mack { 1752f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1753f0b5e634SDaniel Mack int val, oval, err; 1754f0b5e634SDaniel Mack 1755f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 17565aeee342STakashi Iwai if (err < 0) 17575aeee342STakashi Iwai return filter_error(cval, err); 1758f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1759f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1760f0b5e634SDaniel Mack if (val != oval) { 1761f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 1762f0b5e634SDaniel Mack return 1; 1763f0b5e634SDaniel Mack } 1764f0b5e634SDaniel Mack return 0; 1765f0b5e634SDaniel Mack } 1766f0b5e634SDaniel Mack 1767f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 17688fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_procunit_ctl = { 1769f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1770f0b5e634SDaniel Mack .name = "", /* will be filled later */ 1771f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1772f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 1773f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 1774f0b5e634SDaniel Mack }; 1775f0b5e634SDaniel Mack 1776f0b5e634SDaniel Mack /* 1777f0b5e634SDaniel Mack * predefined data for processing units 1778f0b5e634SDaniel Mack */ 1779f0b5e634SDaniel Mack struct procunit_value_info { 1780f0b5e634SDaniel Mack int control; 1781f0b5e634SDaniel Mack char *suffix; 1782f0b5e634SDaniel Mack int val_type; 1783f0b5e634SDaniel Mack int min_value; 1784f0b5e634SDaniel Mack }; 1785f0b5e634SDaniel Mack 1786f0b5e634SDaniel Mack struct procunit_info { 1787f0b5e634SDaniel Mack int type; 1788f0b5e634SDaniel Mack char *name; 1789f0b5e634SDaniel Mack struct procunit_value_info *values; 1790f0b5e634SDaniel Mack }; 1791f0b5e634SDaniel Mack 1792f0b5e634SDaniel Mack static struct procunit_value_info updown_proc_info[] = { 179365f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 179465f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1795f0b5e634SDaniel Mack { 0 } 1796f0b5e634SDaniel Mack }; 1797f0b5e634SDaniel Mack static struct procunit_value_info prologic_proc_info[] = { 179865f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 179965f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1800f0b5e634SDaniel Mack { 0 } 1801f0b5e634SDaniel Mack }; 1802f0b5e634SDaniel Mack static struct procunit_value_info threed_enh_proc_info[] = { 180365f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 180465f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 1805f0b5e634SDaniel Mack { 0 } 1806f0b5e634SDaniel Mack }; 1807f0b5e634SDaniel Mack static struct procunit_value_info reverb_proc_info[] = { 180865f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 180965f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 181065f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 181165f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 1812f0b5e634SDaniel Mack { 0 } 1813f0b5e634SDaniel Mack }; 1814f0b5e634SDaniel Mack static struct procunit_value_info chorus_proc_info[] = { 181565f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 181665f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 181765f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 181865f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 1819f0b5e634SDaniel Mack { 0 } 1820f0b5e634SDaniel Mack }; 1821f0b5e634SDaniel Mack static struct procunit_value_info dcr_proc_info[] = { 182265f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 182365f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 182465f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 182565f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 182665f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 182765f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 1828f0b5e634SDaniel Mack { 0 } 1829f0b5e634SDaniel Mack }; 1830f0b5e634SDaniel Mack 1831f0b5e634SDaniel Mack static struct procunit_info procunits[] = { 183265f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 183365f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 183465f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 183565f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 183665f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 183765f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 1838f0b5e634SDaniel Mack { 0 }, 1839f0b5e634SDaniel Mack }; 1840f0b5e634SDaniel Mack /* 1841f0b5e634SDaniel Mack * predefined data for extension units 1842f0b5e634SDaniel Mack */ 1843f0b5e634SDaniel Mack static struct procunit_value_info clock_rate_xu_info[] = { 1844f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1845f0b5e634SDaniel Mack { 0 } 1846f0b5e634SDaniel Mack }; 1847f0b5e634SDaniel Mack static struct procunit_value_info clock_source_xu_info[] = { 1848f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 1849f0b5e634SDaniel Mack { 0 } 1850f0b5e634SDaniel Mack }; 1851f0b5e634SDaniel Mack static struct procunit_value_info spdif_format_xu_info[] = { 1852f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 1853f0b5e634SDaniel Mack { 0 } 1854f0b5e634SDaniel Mack }; 1855f0b5e634SDaniel Mack static struct procunit_value_info soft_limit_xu_info[] = { 1856f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 1857f0b5e634SDaniel Mack { 0 } 1858f0b5e634SDaniel Mack }; 1859f0b5e634SDaniel Mack static struct procunit_info extunits[] = { 1860f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 1861f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 1862f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 1863f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 1864f0b5e634SDaniel Mack { 0 } 1865f0b5e634SDaniel Mack }; 18666bc170e4SDaniel Mack 1867f0b5e634SDaniel Mack /* 1868f0b5e634SDaniel Mack * build a processing/extension unit 1869f0b5e634SDaniel Mack */ 18706bc170e4SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, 18716bc170e4SDaniel Mack void *raw_desc, struct procunit_info *list, 18726bc170e4SDaniel Mack char *name) 1873f0b5e634SDaniel Mack { 187499fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 187599fc8645SDaniel Mack int num_ins = desc->bNrInPins; 1876f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1877f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1878f0b5e634SDaniel Mack int i, err, nameid, type, len; 1879f0b5e634SDaniel Mack struct procunit_info *info; 1880f0b5e634SDaniel Mack struct procunit_value_info *valinfo; 1881f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1882f0b5e634SDaniel Mack static struct procunit_value_info default_value_info[] = { 1883f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 1884f0b5e634SDaniel Mack { 0 } 1885f0b5e634SDaniel Mack }; 1886f0b5e634SDaniel Mack static struct procunit_info default_info = { 1887f0b5e634SDaniel Mack 0, NULL, default_value_info 1888f0b5e634SDaniel Mack }; 1889f0b5e634SDaniel Mack 189023caaf19SDaniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 189123caaf19SDaniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 18920ba41d91STakashi Iwai usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); 1893f0b5e634SDaniel Mack return -EINVAL; 1894f0b5e634SDaniel Mack } 1895f0b5e634SDaniel Mack 1896f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 189799fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 1898f0b5e634SDaniel Mack return err; 1899f0b5e634SDaniel Mack } 1900f0b5e634SDaniel Mack 190199fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 1902f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 1903f0b5e634SDaniel Mack if (info->type == type) 1904f0b5e634SDaniel Mack break; 1905f0b5e634SDaniel Mack if (!info || !info->type) 1906f0b5e634SDaniel Mack info = &default_info; 1907f0b5e634SDaniel Mack 1908f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 190923caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 191099fc8645SDaniel Mack 191199fc8645SDaniel Mack if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 1912f0b5e634SDaniel Mack continue; 1913f0b5e634SDaniel Mack map = find_map(state, unitid, valinfo->control); 1914f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1915f0b5e634SDaniel Mack continue; 1916f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1917a860d95fSDaniel Mack if (!cval) 1918f0b5e634SDaniel Mack return -ENOMEM; 19193360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 1920f0b5e634SDaniel Mack cval->control = valinfo->control; 1921f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 1922f0b5e634SDaniel Mack cval->channels = 1; 1923f0b5e634SDaniel Mack 1924f0b5e634SDaniel Mack /* get min/max values */ 192565f25da4SDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 192623caaf19SDaniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 1927f0b5e634SDaniel Mack /* FIXME: hard-coded */ 1928f0b5e634SDaniel Mack cval->min = 1; 192999fc8645SDaniel Mack cval->max = control_spec[0]; 1930f0b5e634SDaniel Mack cval->res = 1; 1931f0b5e634SDaniel Mack cval->initialized = 1; 1932f0b5e634SDaniel Mack } else { 1933f0b5e634SDaniel Mack if (type == USB_XU_CLOCK_RATE) { 19346bc170e4SDaniel Mack /* 19356bc170e4SDaniel Mack * E-Mu USB 0404/0202/TrackerPre/0204 1936f0b5e634SDaniel Mack * samplerate control quirk 1937f0b5e634SDaniel Mack */ 1938f0b5e634SDaniel Mack cval->min = 0; 1939f0b5e634SDaniel Mack cval->max = 5; 1940f0b5e634SDaniel Mack cval->res = 1; 1941f0b5e634SDaniel Mack cval->initialized = 1; 1942f0b5e634SDaniel Mack } else 1943f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 1944f0b5e634SDaniel Mack } 1945f0b5e634SDaniel Mack 1946f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 1947f0b5e634SDaniel Mack if (!kctl) { 1948f0b5e634SDaniel Mack kfree(cval); 1949f0b5e634SDaniel Mack return -ENOMEM; 1950f0b5e634SDaniel Mack } 1951eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1952f0b5e634SDaniel Mack 19536bc170e4SDaniel Mack if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { 1954f0b5e634SDaniel Mack /* nothing */ ; 19556bc170e4SDaniel Mack } else if (info->name) { 1956f0b5e634SDaniel Mack strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 19576bc170e4SDaniel Mack } else { 195823caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 1959f0b5e634SDaniel Mack len = 0; 1960f0b5e634SDaniel Mack if (nameid) 19616bc170e4SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, 19626bc170e4SDaniel Mack kctl->id.name, 19636bc170e4SDaniel Mack sizeof(kctl->id.name)); 1964f0b5e634SDaniel Mack if (!len) 1965f0b5e634SDaniel Mack strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 1966f0b5e634SDaniel Mack } 1967f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 1968f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 1969f0b5e634SDaniel Mack 19700ba41d91STakashi Iwai usb_audio_dbg(state->chip, 19710ba41d91STakashi Iwai "[%d] PU [%s] ch = %d, val = %d/%d\n", 19723360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 19736bc170e4SDaniel Mack cval->min, cval->max); 19746bc170e4SDaniel Mack 19753360b84bSTakashi Iwai err = snd_usb_mixer_add_control(&cval->head, kctl); 19766bc170e4SDaniel Mack if (err < 0) 1977f0b5e634SDaniel Mack return err; 1978f0b5e634SDaniel Mack } 1979f0b5e634SDaniel Mack return 0; 1980f0b5e634SDaniel Mack } 1981f0b5e634SDaniel Mack 19826bc170e4SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, 19836bc170e4SDaniel Mack void *raw_desc) 1984f0b5e634SDaniel Mack { 19856bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 19866bc170e4SDaniel Mack procunits, "Processing Unit"); 1987f0b5e634SDaniel Mack } 1988f0b5e634SDaniel Mack 19896bc170e4SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, 19906bc170e4SDaniel Mack void *raw_desc) 1991f0b5e634SDaniel Mack { 19926bc170e4SDaniel Mack /* 19936bc170e4SDaniel Mack * Note that we parse extension units with processing unit descriptors. 19946bc170e4SDaniel Mack * That's ok as the layout is the same. 19956bc170e4SDaniel Mack */ 19966bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 19976bc170e4SDaniel Mack extunits, "Extension Unit"); 1998f0b5e634SDaniel Mack } 1999f0b5e634SDaniel Mack 2000f0b5e634SDaniel Mack /* 2001f0b5e634SDaniel Mack * Selector Unit 2002f0b5e634SDaniel Mack */ 2003f0b5e634SDaniel Mack 20046bc170e4SDaniel Mack /* 20056bc170e4SDaniel Mack * info callback for selector unit 2006f0b5e634SDaniel Mack * use an enumerator type for routing 2007f0b5e634SDaniel Mack */ 20086bc170e4SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, 20096bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 2010f0b5e634SDaniel Mack { 2011f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 20122a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 2013f0b5e634SDaniel Mack 2014f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 2015f0b5e634SDaniel Mack return -EINVAL; 20162a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 2017f0b5e634SDaniel Mack } 2018f0b5e634SDaniel Mack 2019f0b5e634SDaniel Mack /* get callback for selector unit */ 20206bc170e4SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, 20216bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2022f0b5e634SDaniel Mack { 2023f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2024f0b5e634SDaniel Mack int val, err; 2025f0b5e634SDaniel Mack 202609414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 2027f0b5e634SDaniel Mack if (err < 0) { 2028f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 20295aeee342STakashi Iwai return filter_error(cval, err); 2030f0b5e634SDaniel Mack } 2031f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2032f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 2033f0b5e634SDaniel Mack return 0; 2034f0b5e634SDaniel Mack } 2035f0b5e634SDaniel Mack 2036f0b5e634SDaniel Mack /* put callback for selector unit */ 20376bc170e4SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, 20386bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2039f0b5e634SDaniel Mack { 2040f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2041f0b5e634SDaniel Mack int val, oval, err; 2042f0b5e634SDaniel Mack 204309414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 20445aeee342STakashi Iwai if (err < 0) 20455aeee342STakashi Iwai return filter_error(cval, err); 2046f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 2047f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2048f0b5e634SDaniel Mack if (val != oval) { 204909414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2050f0b5e634SDaniel Mack return 1; 2051f0b5e634SDaniel Mack } 2052f0b5e634SDaniel Mack return 0; 2053f0b5e634SDaniel Mack } 2054f0b5e634SDaniel Mack 2055f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 20568fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_selectunit_ctl = { 2057f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2058f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2059f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 2060f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 2061f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 2062f0b5e634SDaniel Mack }; 2063f0b5e634SDaniel Mack 20646bc170e4SDaniel Mack /* 20656bc170e4SDaniel Mack * private free callback. 2066f0b5e634SDaniel Mack * free both private_data and private_value 2067f0b5e634SDaniel Mack */ 2068f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 2069f0b5e634SDaniel Mack { 2070f0b5e634SDaniel Mack int i, num_ins = 0; 2071f0b5e634SDaniel Mack 2072f0b5e634SDaniel Mack if (kctl->private_data) { 2073f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 2074f0b5e634SDaniel Mack num_ins = cval->max; 2075f0b5e634SDaniel Mack kfree(cval); 2076f0b5e634SDaniel Mack kctl->private_data = NULL; 2077f0b5e634SDaniel Mack } 2078f0b5e634SDaniel Mack if (kctl->private_value) { 2079f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 2080f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 2081f0b5e634SDaniel Mack kfree(itemlist[i]); 2082f0b5e634SDaniel Mack kfree(itemlist); 2083f0b5e634SDaniel Mack kctl->private_value = 0; 2084f0b5e634SDaniel Mack } 2085f0b5e634SDaniel Mack } 2086f0b5e634SDaniel Mack 2087f0b5e634SDaniel Mack /* 2088f0b5e634SDaniel Mack * parse a selector unit 2089f0b5e634SDaniel Mack */ 20906bc170e4SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, 20916bc170e4SDaniel Mack void *raw_desc) 2092f0b5e634SDaniel Mack { 209399fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 2094f0b5e634SDaniel Mack unsigned int i, nameid, len; 2095f0b5e634SDaniel Mack int err; 2096f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2097f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2098f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2099f0b5e634SDaniel Mack char **namelist; 2100f0b5e634SDaniel Mack 2101f658f17bSTakashi Iwai if (desc->bLength < 5 || !desc->bNrInPins || 2102f658f17bSTakashi Iwai desc->bLength < 5 + desc->bNrInPins) { 21030ba41d91STakashi Iwai usb_audio_err(state->chip, 21040ba41d91STakashi Iwai "invalid SELECTOR UNIT descriptor %d\n", unitid); 2105f0b5e634SDaniel Mack return -EINVAL; 2106f0b5e634SDaniel Mack } 2107f0b5e634SDaniel Mack 210899fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 210999fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 2110f0b5e634SDaniel Mack return err; 2111f0b5e634SDaniel Mack } 2112f0b5e634SDaniel Mack 211399fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 2114f0b5e634SDaniel Mack return 0; 2115f0b5e634SDaniel Mack 2116f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 2117f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2118f0b5e634SDaniel Mack return 0; 2119f0b5e634SDaniel Mack 2120f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2121a860d95fSDaniel Mack if (!cval) 2122f0b5e634SDaniel Mack return -ENOMEM; 21233360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2124f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 2125f0b5e634SDaniel Mack cval->channels = 1; 2126f0b5e634SDaniel Mack cval->min = 1; 212799fc8645SDaniel Mack cval->max = desc->bNrInPins; 2128f0b5e634SDaniel Mack cval->res = 1; 2129f0b5e634SDaniel Mack cval->initialized = 1; 2130f0b5e634SDaniel Mack 2131a358a0efSJohan Rastén if (state->mixer->protocol == UAC_VERSION_1) 213209414207SDaniel Mack cval->control = 0; 2133a358a0efSJohan Rastén else /* UAC_VERSION_2 */ 2134a358a0efSJohan Rastén cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? 2135a358a0efSJohan Rastén UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; 213609414207SDaniel Mack 213799fc8645SDaniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 2138f0b5e634SDaniel Mack if (!namelist) { 2139f0b5e634SDaniel Mack kfree(cval); 2140f0b5e634SDaniel Mack return -ENOMEM; 2141f0b5e634SDaniel Mack } 2142f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 214399fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2144f0b5e634SDaniel Mack struct usb_audio_term iterm; 2145f0b5e634SDaniel Mack len = 0; 2146f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 2147f0b5e634SDaniel Mack if (!namelist[i]) { 2148f0b5e634SDaniel Mack while (i--) 2149f0b5e634SDaniel Mack kfree(namelist[i]); 2150f0b5e634SDaniel Mack kfree(namelist); 2151f0b5e634SDaniel Mack kfree(cval); 2152f0b5e634SDaniel Mack return -ENOMEM; 2153f0b5e634SDaniel Mack } 2154f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 2155f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 215699fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 2157f0b5e634SDaniel Mack len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 2158f0b5e634SDaniel Mack if (! len) 2159af831eefSMasanari Iida sprintf(namelist[i], "Input %u", i); 2160f0b5e634SDaniel Mack } 2161f0b5e634SDaniel Mack 2162f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 2163f0b5e634SDaniel Mack if (! kctl) { 21640ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 2165f0b5e634SDaniel Mack kfree(namelist); 2166f0b5e634SDaniel Mack kfree(cval); 2167f0b5e634SDaniel Mack return -ENOMEM; 2168f0b5e634SDaniel Mack } 2169f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 2170f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 2171f0b5e634SDaniel Mack 217299fc8645SDaniel Mack nameid = uac_selector_unit_iSelector(desc); 2173f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 2174f0b5e634SDaniel Mack if (len) 2175f0b5e634SDaniel Mack ; 2176f0b5e634SDaniel Mack else if (nameid) 21776bc170e4SDaniel Mack snd_usb_copy_string_desc(state, nameid, kctl->id.name, 21786bc170e4SDaniel Mack sizeof(kctl->id.name)); 2179f0b5e634SDaniel Mack else { 2180f0b5e634SDaniel Mack len = get_term_name(state, &state->oterm, 2181f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 2182f0b5e634SDaniel Mack if (!len) 2183f0b5e634SDaniel Mack strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 2184f0b5e634SDaniel Mack 218509414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 218609414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 218709414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 2188f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 2189f0b5e634SDaniel Mack else 2190f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 2191f0b5e634SDaniel Mack } 2192f0b5e634SDaniel Mack 21930ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", 21943360b84bSTakashi Iwai cval->head.id, kctl->id.name, desc->bNrInPins); 21953360b84bSTakashi Iwai return snd_usb_mixer_add_control(&cval->head, kctl); 2196f0b5e634SDaniel Mack } 2197f0b5e634SDaniel Mack 2198f0b5e634SDaniel Mack /* 2199f0b5e634SDaniel Mack * parse an audio unit recursively 2200f0b5e634SDaniel Mack */ 2201f0b5e634SDaniel Mack 2202f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 2203f0b5e634SDaniel Mack { 2204f0b5e634SDaniel Mack unsigned char *p1; 2205f0b5e634SDaniel Mack 2206f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 2207f0b5e634SDaniel Mack return 0; /* the unit already visited */ 2208f0b5e634SDaniel Mack 2209f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 2210f0b5e634SDaniel Mack if (!p1) { 22110ba41d91STakashi Iwai usb_audio_err(state->chip, "unit %d not found!\n", unitid); 2212f0b5e634SDaniel Mack return -EINVAL; 2213f0b5e634SDaniel Mack } 2214f0b5e634SDaniel Mack 2215f0b5e634SDaniel Mack switch (p1[2]) { 2216f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 2217f0b5e634SDaniel Mack return 0; /* NOP */ 2218f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 2219f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 2220cddaafb9SDaniel Mack case UAC2_CLOCK_SOURCE: 2221cddaafb9SDaniel Mack return parse_clock_source_unit(state, unitid, p1); 2222f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 222309414207SDaniel Mack case UAC2_CLOCK_SELECTOR: 2224f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 2225f0b5e634SDaniel Mack case UAC_FEATURE_UNIT: 2226f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 222769da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 222823caaf19SDaniel Mack /* UAC2_EFFECT_UNIT has the same value */ 222923caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) 2230f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 223123caaf19SDaniel Mack else 223223caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 223369da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 223423caaf19SDaniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 223523caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) 2236f0b5e634SDaniel Mack return parse_audio_extension_unit(state, unitid, p1); 223723caaf19SDaniel Mack else /* UAC_VERSION_2 */ 223823caaf19SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 223961ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: 224061ac5130STorstein Hegge return parse_audio_extension_unit(state, unitid, p1); 2241f0b5e634SDaniel Mack default: 22420ba41d91STakashi Iwai usb_audio_err(state->chip, 22430ba41d91STakashi Iwai "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 2244f0b5e634SDaniel Mack return -EINVAL; 2245f0b5e634SDaniel Mack } 2246f0b5e634SDaniel Mack } 2247f0b5e634SDaniel Mack 2248f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 2249f0b5e634SDaniel Mack { 2250124751d5STakashi Iwai /* kill pending URBs */ 2251124751d5STakashi Iwai snd_usb_mixer_disconnect(mixer); 2252124751d5STakashi Iwai 2253f0b5e634SDaniel Mack kfree(mixer->id_elems); 2254f0b5e634SDaniel Mack if (mixer->urb) { 2255f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 2256f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 2257f0b5e634SDaniel Mack } 2258f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 2259f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 2260f0b5e634SDaniel Mack kfree(mixer); 2261f0b5e634SDaniel Mack } 2262f0b5e634SDaniel Mack 2263f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 2264f0b5e634SDaniel Mack { 2265f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 2266f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2267f0b5e634SDaniel Mack return 0; 2268f0b5e634SDaniel Mack } 2269f0b5e634SDaniel Mack 2270f0b5e634SDaniel Mack /* 2271f0b5e634SDaniel Mack * create mixer controls 2272f0b5e634SDaniel Mack * 2273f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 2274f0b5e634SDaniel Mack */ 2275f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 2276f0b5e634SDaniel Mack { 2277f0b5e634SDaniel Mack struct mixer_build state; 2278f0b5e634SDaniel Mack int err; 2279f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 228023caaf19SDaniel Mack void *p; 2281f0b5e634SDaniel Mack 2282f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 2283f0b5e634SDaniel Mack state.chip = mixer->chip; 2284f0b5e634SDaniel Mack state.mixer = mixer; 22851faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 22861faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 2287f0b5e634SDaniel Mack 2288f0b5e634SDaniel Mack /* check the mapping table */ 2289f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 2290f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 2291f0b5e634SDaniel Mack state.map = map->map; 2292f0b5e634SDaniel Mack state.selector_map = map->selector_map; 2293f0b5e634SDaniel Mack mixer->ignore_ctl_error = map->ignore_ctl_error; 2294f0b5e634SDaniel Mack break; 2295f0b5e634SDaniel Mack } 2296f0b5e634SDaniel Mack } 2297f0b5e634SDaniel Mack 229823caaf19SDaniel Mack p = NULL; 22996bc170e4SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, 23006bc170e4SDaniel Mack mixer->hostif->extralen, 23011faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 230223caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 230369da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 230423caaf19SDaniel Mack 230523caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 230623caaf19SDaniel Mack continue; /* invalid descriptor? */ 23076bc170e4SDaniel Mack /* mark terminal ID as visited */ 23086bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 230923caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 231023caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 231123caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 231223caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 231383ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 231423caaf19SDaniel Mack return err; 231523caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 231623caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 231723caaf19SDaniel Mack 231823caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 2319f0b5e634SDaniel Mack continue; /* invalid descriptor? */ 23206bc170e4SDaniel Mack /* mark terminal ID as visited */ 23216bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 2322f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 2323f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 2324f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 2325f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 232683ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 2327f0b5e634SDaniel Mack return err; 232809414207SDaniel Mack 23296bc170e4SDaniel Mack /* 23306bc170e4SDaniel Mack * For UAC2, use the same approach to also add the 23316bc170e4SDaniel Mack * clock selectors 23326bc170e4SDaniel Mack */ 233309414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 233483ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 233509414207SDaniel Mack return err; 2336f0b5e634SDaniel Mack } 233723caaf19SDaniel Mack } 233823caaf19SDaniel Mack 2339f0b5e634SDaniel Mack return 0; 2340f0b5e634SDaniel Mack } 2341f0b5e634SDaniel Mack 2342f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 2343f0b5e634SDaniel Mack { 23443360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2345f0b5e634SDaniel Mack 2346b2500b58SJulian Scheel for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { 2347b2500b58SJulian Scheel struct usb_mixer_elem_info *info = 2348b2500b58SJulian Scheel (struct usb_mixer_elem_info *)list; 2349b2500b58SJulian Scheel /* invalidate cache, so the value is read from the device */ 2350b2500b58SJulian Scheel info->cached = 0; 2351f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 23523360b84bSTakashi Iwai &list->kctl->id); 2353f0b5e634SDaniel Mack } 2354b2500b58SJulian Scheel } 2355f0b5e634SDaniel Mack 2356f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 23573360b84bSTakashi Iwai struct usb_mixer_elem_list *list) 2358f0b5e634SDaniel Mack { 23593360b84bSTakashi Iwai struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; 2360f0b5e634SDaniel Mack static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 2361f0b5e634SDaniel Mack "S8", "U8", "S16", "U16"}; 2362f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 23633360b84bSTakashi Iwai "channels=%i, type=\"%s\"\n", cval->head.id, 2364f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 2365f0b5e634SDaniel Mack val_types[cval->val_type]); 2366f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 2367f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 2368f0b5e634SDaniel Mack } 2369f0b5e634SDaniel Mack 2370f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 2371f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 2372f0b5e634SDaniel Mack { 2373f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 2374f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 23753360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2376f0b5e634SDaniel Mack int unitid; 2377f0b5e634SDaniel Mack 2378f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 2379f0b5e634SDaniel Mack snd_iprintf(buffer, 2380f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 23813d8d4dcfSDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 2382f0b5e634SDaniel Mack mixer->ignore_ctl_error); 2383f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 2384f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 23853360b84bSTakashi Iwai for (list = mixer->id_elems[unitid]; list; 23863360b84bSTakashi Iwai list = list->next_id_elem) { 23873360b84bSTakashi Iwai snd_iprintf(buffer, " Unit: %i\n", list->id); 23883360b84bSTakashi Iwai if (list->kctl) 23893360b84bSTakashi Iwai snd_iprintf(buffer, 23903360b84bSTakashi Iwai " Control: name=\"%s\", index=%i\n", 23913360b84bSTakashi Iwai list->kctl->id.name, 23923360b84bSTakashi Iwai list->kctl->id.index); 23933360b84bSTakashi Iwai if (list->dump) 23943360b84bSTakashi Iwai list->dump(buffer, list); 23953360b84bSTakashi Iwai } 2396f0b5e634SDaniel Mack } 2397f0b5e634SDaniel Mack } 2398f0b5e634SDaniel Mack } 2399f0b5e634SDaniel Mack 2400e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 2401e213e9cfSDaniel Mack int attribute, int value, int index) 2402e213e9cfSDaniel Mack { 24033360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2404e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 2405e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 2406e213e9cfSDaniel Mack __u8 channel = value & 0xff; 2407191227d9SDaniel Mack unsigned int count = 0; 2408e213e9cfSDaniel Mack 2409e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 24100ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 24110ba41d91STakashi Iwai "%s(): bogus channel number %d\n", 2412e213e9cfSDaniel Mack __func__, channel); 2413e213e9cfSDaniel Mack return; 2414e213e9cfSDaniel Mack } 2415e213e9cfSDaniel Mack 2416191227d9SDaniel Mack for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) 2417191227d9SDaniel Mack count++; 2418191227d9SDaniel Mack 2419191227d9SDaniel Mack if (count == 0) 2420191227d9SDaniel Mack return; 2421191227d9SDaniel Mack 24223360b84bSTakashi Iwai for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { 24233360b84bSTakashi Iwai struct usb_mixer_elem_info *info; 24243360b84bSTakashi Iwai 24253360b84bSTakashi Iwai if (!list->kctl) 24263360b84bSTakashi Iwai continue; 24273360b84bSTakashi Iwai 24283360b84bSTakashi Iwai info = (struct usb_mixer_elem_info *)list; 2429191227d9SDaniel Mack if (count > 1 && info->control != control) 2430e213e9cfSDaniel Mack continue; 2431e213e9cfSDaniel Mack 2432e213e9cfSDaniel Mack switch (attribute) { 2433e213e9cfSDaniel Mack case UAC2_CS_CUR: 2434e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 2435e213e9cfSDaniel Mack if (channel) 2436e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 2437e213e9cfSDaniel Mack else /* master channel */ 2438e213e9cfSDaniel Mack info->cached = 0; 2439e213e9cfSDaniel Mack 2440e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 24413360b84bSTakashi Iwai &info->head.kctl->id); 2442e213e9cfSDaniel Mack break; 2443e213e9cfSDaniel Mack 2444e213e9cfSDaniel Mack case UAC2_CS_RANGE: 2445e213e9cfSDaniel Mack /* TODO */ 2446e213e9cfSDaniel Mack break; 2447e213e9cfSDaniel Mack 2448e213e9cfSDaniel Mack case UAC2_CS_MEM: 2449e213e9cfSDaniel Mack /* TODO */ 2450e213e9cfSDaniel Mack break; 2451e213e9cfSDaniel Mack 2452e213e9cfSDaniel Mack default: 24530ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 24540ba41d91STakashi Iwai "unknown attribute %d in interrupt\n", 2455e213e9cfSDaniel Mack attribute); 2456e213e9cfSDaniel Mack break; 2457e213e9cfSDaniel Mack } /* switch */ 2458e213e9cfSDaniel Mack } 2459e213e9cfSDaniel Mack } 2460e213e9cfSDaniel Mack 2461e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 2462f0b5e634SDaniel Mack { 2463f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 2464e213e9cfSDaniel Mack int len = urb->actual_length; 2465edf7de31SOliver Neukum int ustatus = urb->status; 2466f0b5e634SDaniel Mack 2467edf7de31SOliver Neukum if (ustatus != 0) 2468e213e9cfSDaniel Mack goto requeue; 2469f0b5e634SDaniel Mack 2470e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2471e213e9cfSDaniel Mack struct uac1_status_word *status; 2472e213e9cfSDaniel Mack 2473e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 2474e213e9cfSDaniel Mack len >= sizeof(*status); 2475e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 24760ba41d91STakashi Iwai dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", 2477e213e9cfSDaniel Mack status->bStatusType, 2478e213e9cfSDaniel Mack status->bOriginator); 2479e213e9cfSDaniel Mack 2480f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 2481e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2482e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 2483f0b5e634SDaniel Mack continue; 2484e213e9cfSDaniel Mack 2485e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2486e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2487f0b5e634SDaniel Mack else 2488e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2489e213e9cfSDaniel Mack } 2490e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 2491e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 2492e213e9cfSDaniel Mack 2493e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 2494e213e9cfSDaniel Mack len >= sizeof(*msg); 2495e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 2496e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 2497e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2498e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2499e213e9cfSDaniel Mack continue; 2500e213e9cfSDaniel Mack 2501e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2502e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 2503e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 2504f0b5e634SDaniel Mack } 2505f0b5e634SDaniel Mack } 2506e213e9cfSDaniel Mack 2507e213e9cfSDaniel Mack requeue: 25086bc170e4SDaniel Mack if (ustatus != -ENOENT && 25096bc170e4SDaniel Mack ustatus != -ECONNRESET && 25106bc170e4SDaniel Mack ustatus != -ESHUTDOWN) { 2511f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 2512f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 2513f0b5e634SDaniel Mack } 2514f0b5e634SDaniel Mack } 2515f0b5e634SDaniel Mack 2516f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 2517f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 2518f0b5e634SDaniel Mack { 2519f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 2520f0b5e634SDaniel Mack void *transfer_buffer; 2521f0b5e634SDaniel Mack int buffer_length; 2522f0b5e634SDaniel Mack unsigned int epnum; 2523f0b5e634SDaniel Mack 2524f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 25251faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 2526f0b5e634SDaniel Mack return 0; 25271faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 2528f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 2529f0b5e634SDaniel Mack return 0; 2530f0b5e634SDaniel Mack 2531f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 2532f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 2533f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 2534f0b5e634SDaniel Mack if (!transfer_buffer) 2535f0b5e634SDaniel Mack return -ENOMEM; 2536f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 2537f0b5e634SDaniel Mack if (!mixer->urb) { 2538f0b5e634SDaniel Mack kfree(transfer_buffer); 2539f0b5e634SDaniel Mack return -ENOMEM; 2540f0b5e634SDaniel Mack } 2541f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 2542f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 2543f0b5e634SDaniel Mack transfer_buffer, buffer_length, 2544e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 2545f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 2546f0b5e634SDaniel Mack return 0; 2547f0b5e634SDaniel Mack } 2548f0b5e634SDaniel Mack 2549f0b5e634SDaniel Mack int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 2550f0b5e634SDaniel Mack int ignore_error) 2551f0b5e634SDaniel Mack { 2552f0b5e634SDaniel Mack static struct snd_device_ops dev_ops = { 2553f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 2554f0b5e634SDaniel Mack }; 2555f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2556f0b5e634SDaniel Mack struct snd_info_entry *entry; 255723caaf19SDaniel Mack int err; 2558f0b5e634SDaniel Mack 2559f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 2560f0b5e634SDaniel Mack 2561f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 2562f0b5e634SDaniel Mack if (!mixer) 2563f0b5e634SDaniel Mack return -ENOMEM; 2564f0b5e634SDaniel Mack mixer->chip = chip; 2565f0b5e634SDaniel Mack mixer->ignore_ctl_error = ignore_error; 2566f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2567f0b5e634SDaniel Mack GFP_KERNEL); 2568f0b5e634SDaniel Mack if (!mixer->id_elems) { 2569f0b5e634SDaniel Mack kfree(mixer); 2570f0b5e634SDaniel Mack return -ENOMEM; 2571f0b5e634SDaniel Mack } 2572f0b5e634SDaniel Mack 25731faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 25741faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 2575a2acad82SClemens Ladisch case UAC_VERSION_1: 2576a2acad82SClemens Ladisch default: 2577a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 2578a2acad82SClemens Ladisch break; 2579a2acad82SClemens Ladisch case UAC_VERSION_2: 2580a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 2581a2acad82SClemens Ladisch break; 2582a2acad82SClemens Ladisch } 2583f0b5e634SDaniel Mack 2584f0b5e634SDaniel Mack if ((err = snd_usb_mixer_controls(mixer)) < 0 || 2585f0b5e634SDaniel Mack (err = snd_usb_mixer_status_create(mixer)) < 0) 2586f0b5e634SDaniel Mack goto _error; 2587f0b5e634SDaniel Mack 2588f0b5e634SDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2589f0b5e634SDaniel Mack 25909cbb2808STakashi Iwai err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); 2591f0b5e634SDaniel Mack if (err < 0) 2592f0b5e634SDaniel Mack goto _error; 2593f0b5e634SDaniel Mack 2594f0b5e634SDaniel Mack if (list_empty(&chip->mixer_list) && 2595f0b5e634SDaniel Mack !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2596f0b5e634SDaniel Mack snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2597f0b5e634SDaniel Mack 2598f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 2599f0b5e634SDaniel Mack return 0; 2600f0b5e634SDaniel Mack 2601f0b5e634SDaniel Mack _error: 2602f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2603f0b5e634SDaniel Mack return err; 2604f0b5e634SDaniel Mack } 2605f0b5e634SDaniel Mack 2606a6cece9dSTakashi Iwai void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) 2607f0b5e634SDaniel Mack { 2608124751d5STakashi Iwai if (mixer->disconnected) 2609124751d5STakashi Iwai return; 2610124751d5STakashi Iwai if (mixer->urb) 2611f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 2612124751d5STakashi Iwai if (mixer->rc_urb) 2613f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 2614124751d5STakashi Iwai mixer->disconnected = true; 2615f0b5e634SDaniel Mack } 2616400362f1STakashi Iwai 2617400362f1STakashi Iwai #ifdef CONFIG_PM 2618400362f1STakashi Iwai /* stop any bus activity of a mixer */ 2619400362f1STakashi Iwai static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 2620400362f1STakashi Iwai { 2621400362f1STakashi Iwai usb_kill_urb(mixer->urb); 2622400362f1STakashi Iwai usb_kill_urb(mixer->rc_urb); 2623400362f1STakashi Iwai } 2624400362f1STakashi Iwai 2625400362f1STakashi Iwai static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 2626400362f1STakashi Iwai { 2627400362f1STakashi Iwai int err; 2628400362f1STakashi Iwai 2629400362f1STakashi Iwai if (mixer->urb) { 2630400362f1STakashi Iwai err = usb_submit_urb(mixer->urb, GFP_NOIO); 2631400362f1STakashi Iwai if (err < 0) 2632400362f1STakashi Iwai return err; 2633400362f1STakashi Iwai } 2634400362f1STakashi Iwai 2635400362f1STakashi Iwai return 0; 2636400362f1STakashi Iwai } 2637400362f1STakashi Iwai 2638400362f1STakashi Iwai int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) 2639400362f1STakashi Iwai { 2640400362f1STakashi Iwai snd_usb_mixer_inactivate(mixer); 2641400362f1STakashi Iwai return 0; 2642400362f1STakashi Iwai } 2643400362f1STakashi Iwai 26443360b84bSTakashi Iwai static int restore_mixer_value(struct usb_mixer_elem_list *list) 2645400362f1STakashi Iwai { 26463360b84bSTakashi Iwai struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; 2647400362f1STakashi Iwai int c, err, idx; 2648400362f1STakashi Iwai 2649400362f1STakashi Iwai if (cval->cmask) { 2650400362f1STakashi Iwai idx = 0; 2651400362f1STakashi Iwai for (c = 0; c < MAX_CHANNELS; c++) { 2652400362f1STakashi Iwai if (!(cval->cmask & (1 << c))) 2653400362f1STakashi Iwai continue; 26546aa6925cSYao-Wen Mao if (cval->cached & (1 << (c + 1))) { 2655eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, c + 1, idx, 2656400362f1STakashi Iwai cval->cache_val[idx]); 2657400362f1STakashi Iwai if (err < 0) 2658400362f1STakashi Iwai return err; 2659400362f1STakashi Iwai } 2660400362f1STakashi Iwai idx++; 2661400362f1STakashi Iwai } 2662400362f1STakashi Iwai } else { 2663400362f1STakashi Iwai /* master */ 2664400362f1STakashi Iwai if (cval->cached) { 2665eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); 2666400362f1STakashi Iwai if (err < 0) 2667400362f1STakashi Iwai return err; 2668400362f1STakashi Iwai } 2669400362f1STakashi Iwai } 2670400362f1STakashi Iwai 2671400362f1STakashi Iwai return 0; 2672400362f1STakashi Iwai } 2673400362f1STakashi Iwai 2674400362f1STakashi Iwai int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) 2675400362f1STakashi Iwai { 26763360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 2677400362f1STakashi Iwai int id, err; 2678400362f1STakashi Iwai 2679400362f1STakashi Iwai if (reset_resume) { 2680400362f1STakashi Iwai /* restore cached mixer values */ 2681400362f1STakashi Iwai for (id = 0; id < MAX_ID_ELEMS; id++) { 26823360b84bSTakashi Iwai for (list = mixer->id_elems[id]; list; 26833360b84bSTakashi Iwai list = list->next_id_elem) { 26843360b84bSTakashi Iwai if (list->resume) { 26853360b84bSTakashi Iwai err = list->resume(list); 2686400362f1STakashi Iwai if (err < 0) 2687400362f1STakashi Iwai return err; 2688400362f1STakashi Iwai } 2689400362f1STakashi Iwai } 2690400362f1STakashi Iwai } 26913360b84bSTakashi Iwai } 2692400362f1STakashi Iwai 2693400362f1STakashi Iwai return snd_usb_mixer_activate(mixer); 2694400362f1STakashi Iwai } 2695400362f1STakashi Iwai #endif 26963360b84bSTakashi Iwai 26973360b84bSTakashi Iwai void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, 26983360b84bSTakashi Iwai struct usb_mixer_interface *mixer, 26993360b84bSTakashi Iwai int unitid) 27003360b84bSTakashi Iwai { 27013360b84bSTakashi Iwai list->mixer = mixer; 27023360b84bSTakashi Iwai list->id = unitid; 27033360b84bSTakashi Iwai list->dump = snd_usb_mixer_dump_cval; 27043360b84bSTakashi Iwai #ifdef CONFIG_PM 27053360b84bSTakashi Iwai list->resume = restore_mixer_value; 27063360b84bSTakashi Iwai #endif 27073360b84bSTakashi Iwai } 2708