1f0b5e634SDaniel Mack /* 2f0b5e634SDaniel Mack * (Tentative) USB Audio Driver for ALSA 3f0b5e634SDaniel Mack * 4f0b5e634SDaniel Mack * Mixer control part 5f0b5e634SDaniel Mack * 6f0b5e634SDaniel Mack * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 7f0b5e634SDaniel Mack * 8f0b5e634SDaniel Mack * Many codes borrowed from audio.c by 9f0b5e634SDaniel Mack * Alan Cox (alan@lxorguk.ukuu.org.uk) 10f0b5e634SDaniel Mack * Thomas Sailer (sailer@ife.ee.ethz.ch) 11f0b5e634SDaniel Mack * 12f0b5e634SDaniel Mack * 13f0b5e634SDaniel Mack * This program is free software; you can redistribute it and/or modify 14f0b5e634SDaniel Mack * it under the terms of the GNU General Public License as published by 15f0b5e634SDaniel Mack * the Free Software Foundation; either version 2 of the License, or 16f0b5e634SDaniel Mack * (at your option) any later version. 17f0b5e634SDaniel Mack * 18f0b5e634SDaniel Mack * This program is distributed in the hope that it will be useful, 19f0b5e634SDaniel Mack * but WITHOUT ANY WARRANTY; without even the implied warranty of 20f0b5e634SDaniel Mack * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21f0b5e634SDaniel Mack * GNU General Public License for more details. 22f0b5e634SDaniel Mack * 23f0b5e634SDaniel Mack * You should have received a copy of the GNU General Public License 24f0b5e634SDaniel Mack * along with this program; if not, write to the Free Software 25f0b5e634SDaniel Mack * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26f0b5e634SDaniel Mack * 27f0b5e634SDaniel Mack */ 28f0b5e634SDaniel Mack 29157a57b6SDaniel Mack /* 30157a57b6SDaniel Mack * TODOs, for both the mixer and the streaming interfaces: 31157a57b6SDaniel Mack * 32157a57b6SDaniel Mack * - support for UAC2 effect units 33157a57b6SDaniel Mack * - support for graphical equalizers 34157a57b6SDaniel Mack * - RANGE and MEM set commands (UAC2) 35157a57b6SDaniel Mack * - RANGE and MEM interrupt dispatchers (UAC2) 36157a57b6SDaniel Mack * - audio channel clustering (UAC2) 37157a57b6SDaniel Mack * - audio sample rate converter units (UAC2) 38157a57b6SDaniel Mack * - proper handling of clock multipliers (UAC2) 39157a57b6SDaniel Mack * - dispatch clock change notifications (UAC2) 40157a57b6SDaniel Mack * - stop PCM streams which use a clock that became invalid 41157a57b6SDaniel Mack * - stop PCM streams which use a clock selector that has changed 42157a57b6SDaniel Mack * - parse available sample rates again when clock sources changed 43157a57b6SDaniel Mack */ 44157a57b6SDaniel Mack 45f0b5e634SDaniel Mack #include <linux/bitops.h> 46f0b5e634SDaniel Mack #include <linux/init.h> 47f0b5e634SDaniel Mack #include <linux/list.h> 48cddaafb9SDaniel Mack #include <linux/log2.h> 49f0b5e634SDaniel Mack #include <linux/slab.h> 50f0b5e634SDaniel Mack #include <linux/string.h> 51f0b5e634SDaniel Mack #include <linux/usb.h> 52f0b5e634SDaniel Mack #include <linux/usb/audio.h> 5323caaf19SDaniel Mack #include <linux/usb/audio-v2.h> 549a2fe9b8SRuslan Bilovol #include <linux/usb/audio-v3.h> 55f0b5e634SDaniel Mack 56f0b5e634SDaniel Mack #include <sound/core.h> 57f0b5e634SDaniel Mack #include <sound/control.h> 58f0b5e634SDaniel Mack #include <sound/hwdep.h> 59f0b5e634SDaniel Mack #include <sound/info.h> 60f0b5e634SDaniel Mack #include <sound/tlv.h> 61f0b5e634SDaniel Mack 62f0b5e634SDaniel Mack #include "usbaudio.h" 63f0b5e634SDaniel Mack #include "mixer.h" 64f0b5e634SDaniel Mack #include "helper.h" 65f0b5e634SDaniel Mack #include "mixer_quirks.h" 6688a8516aSOliver Neukum #include "power.h" 67f0b5e634SDaniel Mack 68f0b5e634SDaniel Mack #define MAX_ID_ELEMS 256 69f0b5e634SDaniel Mack 70f0b5e634SDaniel Mack struct usb_audio_term { 71f0b5e634SDaniel Mack int id; 72f0b5e634SDaniel Mack int type; 73f0b5e634SDaniel Mack int channels; 74f0b5e634SDaniel Mack unsigned int chconfig; 75f0b5e634SDaniel Mack int name; 76f0b5e634SDaniel Mack }; 77f0b5e634SDaniel Mack 78f0b5e634SDaniel Mack struct usbmix_name_map; 79f0b5e634SDaniel Mack 80f0b5e634SDaniel Mack struct mixer_build { 81f0b5e634SDaniel Mack struct snd_usb_audio *chip; 82f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 83f0b5e634SDaniel Mack unsigned char *buffer; 84f0b5e634SDaniel Mack unsigned int buflen; 85f0b5e634SDaniel Mack DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 86f0b5e634SDaniel Mack struct usb_audio_term oterm; 87f0b5e634SDaniel Mack const struct usbmix_name_map *map; 88f0b5e634SDaniel Mack const struct usbmix_selector_map *selector_map; 89f0b5e634SDaniel Mack }; 90f0b5e634SDaniel Mack 911cdfa9f3SJoseph Teichman /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ 92f0b5e634SDaniel Mack enum { 93f0b5e634SDaniel Mack USB_XU_CLOCK_RATE = 0xe301, 94f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE = 0xe302, 95f0b5e634SDaniel Mack USB_XU_DIGITAL_IO_STATUS = 0xe303, 96f0b5e634SDaniel Mack USB_XU_DEVICE_OPTIONS = 0xe304, 97f0b5e634SDaniel Mack USB_XU_DIRECT_MONITORING = 0xe305, 98f0b5e634SDaniel Mack USB_XU_METERING = 0xe306 99f0b5e634SDaniel Mack }; 100f0b5e634SDaniel Mack enum { 101f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 102f0b5e634SDaniel Mack USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 103f0b5e634SDaniel Mack USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 104f0b5e634SDaniel Mack USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 105f0b5e634SDaniel Mack }; 106f0b5e634SDaniel Mack 107f0b5e634SDaniel Mack /* 108f0b5e634SDaniel Mack * manual mapping of mixer names 109f0b5e634SDaniel Mack * if the mixer topology is too complicated and the parsed names are 110f0b5e634SDaniel Mack * ambiguous, add the entries in usbmixer_maps.c. 111f0b5e634SDaniel Mack */ 112f0b5e634SDaniel Mack #include "mixer_maps.c" 113f0b5e634SDaniel Mack 114f0b5e634SDaniel Mack static const struct usbmix_name_map * 11517156f23SRuslan Bilovol find_map(const struct usbmix_name_map *p, int unitid, int control) 116f0b5e634SDaniel Mack { 117f0b5e634SDaniel Mack if (!p) 118f0b5e634SDaniel Mack return NULL; 119f0b5e634SDaniel Mack 12017156f23SRuslan Bilovol for (; p->id; p++) { 121f0b5e634SDaniel Mack if (p->id == unitid && 122f0b5e634SDaniel Mack (!control || !p->control || control == p->control)) 123f0b5e634SDaniel Mack return p; 124f0b5e634SDaniel Mack } 125f0b5e634SDaniel Mack return NULL; 126f0b5e634SDaniel Mack } 127f0b5e634SDaniel Mack 128f0b5e634SDaniel Mack /* get the mapped name if the unit matches */ 129f0b5e634SDaniel Mack static int 130f0b5e634SDaniel Mack check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 131f0b5e634SDaniel Mack { 132f0b5e634SDaniel Mack if (!p || !p->name) 133f0b5e634SDaniel Mack return 0; 134f0b5e634SDaniel Mack 135f0b5e634SDaniel Mack buflen--; 136f0b5e634SDaniel Mack return strlcpy(buf, p->name, buflen); 137f0b5e634SDaniel Mack } 138f0b5e634SDaniel Mack 1395aeee342STakashi Iwai /* ignore the error value if ignore_ctl_error flag is set */ 1405aeee342STakashi Iwai #define filter_error(cval, err) \ 1413360b84bSTakashi Iwai ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) 1425aeee342STakashi Iwai 143f0b5e634SDaniel Mack /* check whether the control should be ignored */ 144f0b5e634SDaniel Mack static inline int 145f0b5e634SDaniel Mack check_ignored_ctl(const struct usbmix_name_map *p) 146f0b5e634SDaniel Mack { 147f0b5e634SDaniel Mack if (!p || p->name || p->dB) 148f0b5e634SDaniel Mack return 0; 149f0b5e634SDaniel Mack return 1; 150f0b5e634SDaniel Mack } 151f0b5e634SDaniel Mack 152f0b5e634SDaniel Mack /* dB mapping */ 153f0b5e634SDaniel Mack static inline void check_mapped_dB(const struct usbmix_name_map *p, 154f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 155f0b5e634SDaniel Mack { 156f0b5e634SDaniel Mack if (p && p->dB) { 157f0b5e634SDaniel Mack cval->dBmin = p->dB->min; 158f0b5e634SDaniel Mack cval->dBmax = p->dB->max; 15938b65190STakashi Iwai cval->initialized = 1; 160f0b5e634SDaniel Mack } 161f0b5e634SDaniel Mack } 162f0b5e634SDaniel Mack 163f0b5e634SDaniel Mack /* get the mapped selector source name */ 164f0b5e634SDaniel Mack static int check_mapped_selector_name(struct mixer_build *state, int unitid, 165f0b5e634SDaniel Mack int index, char *buf, int buflen) 166f0b5e634SDaniel Mack { 167f0b5e634SDaniel Mack const struct usbmix_selector_map *p; 168f0b5e634SDaniel Mack 169f0b5e634SDaniel Mack if (!state->selector_map) 170f0b5e634SDaniel Mack return 0; 171f0b5e634SDaniel Mack for (p = state->selector_map; p->id; p++) { 172f0b5e634SDaniel Mack if (p->id == unitid && index < p->count) 173f0b5e634SDaniel Mack return strlcpy(buf, p->names[index], buflen); 174f0b5e634SDaniel Mack } 175f0b5e634SDaniel Mack return 0; 176f0b5e634SDaniel Mack } 177f0b5e634SDaniel Mack 178f0b5e634SDaniel Mack /* 179f0b5e634SDaniel Mack * find an audio control unit with the given unit id 180f0b5e634SDaniel Mack */ 1816bc170e4SDaniel Mack static void *find_audio_control_unit(struct mixer_build *state, 1826bc170e4SDaniel Mack unsigned char unit) 183f0b5e634SDaniel Mack { 18467e1daa0SDaniel Mack /* we just parse the header */ 18567e1daa0SDaniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 186f0b5e634SDaniel Mack 18767e1daa0SDaniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 188f0b5e634SDaniel Mack USB_DT_CS_INTERFACE)) != NULL) { 18967e1daa0SDaniel Mack if (hdr->bLength >= 4 && 19067e1daa0SDaniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 1919a2fe9b8SRuslan Bilovol hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER && 19267e1daa0SDaniel Mack hdr->bUnitID == unit) 19367e1daa0SDaniel Mack return hdr; 194f0b5e634SDaniel Mack } 19567e1daa0SDaniel Mack 196f0b5e634SDaniel Mack return NULL; 197f0b5e634SDaniel Mack } 198f0b5e634SDaniel Mack 199f0b5e634SDaniel Mack /* 200f0b5e634SDaniel Mack * copy a string with the given id 201f0b5e634SDaniel Mack */ 202eccfc1b8SRuslan Bilovol static int snd_usb_copy_string_desc(struct snd_usb_audio *chip, 2036bc170e4SDaniel Mack int index, char *buf, int maxlen) 204f0b5e634SDaniel Mack { 205eccfc1b8SRuslan Bilovol int len = usb_string(chip->dev, index, buf, maxlen - 1); 206251552a2SJaejoong Kim 207251552a2SJaejoong Kim if (len < 0) 208251552a2SJaejoong Kim return 0; 209251552a2SJaejoong Kim 210f0b5e634SDaniel Mack buf[len] = 0; 211f0b5e634SDaniel Mack return len; 212f0b5e634SDaniel Mack } 213f0b5e634SDaniel Mack 214f0b5e634SDaniel Mack /* 215f0b5e634SDaniel Mack * convert from the byte/word on usb descriptor to the zero-based integer 216f0b5e634SDaniel Mack */ 217f0b5e634SDaniel Mack static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 218f0b5e634SDaniel Mack { 219f0b5e634SDaniel Mack switch (cval->val_type) { 220f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 221f0b5e634SDaniel Mack return !!val; 222f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 223f0b5e634SDaniel Mack return !val; 224f0b5e634SDaniel Mack case USB_MIXER_U8: 225f0b5e634SDaniel Mack val &= 0xff; 226f0b5e634SDaniel Mack break; 227f0b5e634SDaniel Mack case USB_MIXER_S8: 228f0b5e634SDaniel Mack val &= 0xff; 229f0b5e634SDaniel Mack if (val >= 0x80) 230f0b5e634SDaniel Mack val -= 0x100; 231f0b5e634SDaniel Mack break; 232f0b5e634SDaniel Mack case USB_MIXER_U16: 233f0b5e634SDaniel Mack val &= 0xffff; 234f0b5e634SDaniel Mack break; 235f0b5e634SDaniel Mack case USB_MIXER_S16: 236f0b5e634SDaniel Mack val &= 0xffff; 237f0b5e634SDaniel Mack if (val >= 0x8000) 238f0b5e634SDaniel Mack val -= 0x10000; 239f0b5e634SDaniel Mack break; 240f0b5e634SDaniel Mack } 241f0b5e634SDaniel Mack return val; 242f0b5e634SDaniel Mack } 243f0b5e634SDaniel Mack 244f0b5e634SDaniel Mack /* 245f0b5e634SDaniel Mack * convert from the zero-based int to the byte/word for usb descriptor 246f0b5e634SDaniel Mack */ 247f0b5e634SDaniel Mack static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 248f0b5e634SDaniel Mack { 249f0b5e634SDaniel Mack switch (cval->val_type) { 250f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 251f0b5e634SDaniel Mack return !!val; 252f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 253f0b5e634SDaniel Mack return !val; 254f0b5e634SDaniel Mack case USB_MIXER_S8: 255f0b5e634SDaniel Mack case USB_MIXER_U8: 256f0b5e634SDaniel Mack return val & 0xff; 257f0b5e634SDaniel Mack case USB_MIXER_S16: 258f0b5e634SDaniel Mack case USB_MIXER_U16: 259f0b5e634SDaniel Mack return val & 0xffff; 260f0b5e634SDaniel Mack } 261f0b5e634SDaniel Mack return 0; /* not reached */ 262f0b5e634SDaniel Mack } 263f0b5e634SDaniel Mack 264f0b5e634SDaniel Mack static int get_relative_value(struct usb_mixer_elem_info *cval, int val) 265f0b5e634SDaniel Mack { 266f0b5e634SDaniel Mack if (!cval->res) 267f0b5e634SDaniel Mack cval->res = 1; 268f0b5e634SDaniel Mack if (val < cval->min) 269f0b5e634SDaniel Mack return 0; 270f0b5e634SDaniel Mack else if (val >= cval->max) 271f0b5e634SDaniel Mack return (cval->max - cval->min + cval->res - 1) / cval->res; 272f0b5e634SDaniel Mack else 273f0b5e634SDaniel Mack return (val - cval->min) / cval->res; 274f0b5e634SDaniel Mack } 275f0b5e634SDaniel Mack 276f0b5e634SDaniel Mack static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 277f0b5e634SDaniel Mack { 278f0b5e634SDaniel Mack if (val < 0) 279f0b5e634SDaniel Mack return cval->min; 280f0b5e634SDaniel Mack if (!cval->res) 281f0b5e634SDaniel Mack cval->res = 1; 282f0b5e634SDaniel Mack val *= cval->res; 283f0b5e634SDaniel Mack val += cval->min; 284f0b5e634SDaniel Mack if (val > cval->max) 285f0b5e634SDaniel Mack return cval->max; 286f0b5e634SDaniel Mack return val; 287f0b5e634SDaniel Mack } 288f0b5e634SDaniel Mack 289bc18e31cSJulian Scheel static int uac2_ctl_value_size(int val_type) 290bc18e31cSJulian Scheel { 291bc18e31cSJulian Scheel switch (val_type) { 292bc18e31cSJulian Scheel case USB_MIXER_S32: 293bc18e31cSJulian Scheel case USB_MIXER_U32: 294bc18e31cSJulian Scheel return 4; 295bc18e31cSJulian Scheel case USB_MIXER_S16: 296bc18e31cSJulian Scheel case USB_MIXER_U16: 297bc18e31cSJulian Scheel return 2; 298bc18e31cSJulian Scheel default: 299bc18e31cSJulian Scheel return 1; 300bc18e31cSJulian Scheel } 301bc18e31cSJulian Scheel return 0; /* unreachable */ 302bc18e31cSJulian Scheel } 303bc18e31cSJulian Scheel 304f0b5e634SDaniel Mack 305f0b5e634SDaniel Mack /* 306f0b5e634SDaniel Mack * retrieve a mixer value 307f0b5e634SDaniel Mack */ 308f0b5e634SDaniel Mack 3096bc170e4SDaniel Mack static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, 3106bc170e4SDaniel Mack int validx, int *value_ret) 311f0b5e634SDaniel Mack { 3123360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 313f0b5e634SDaniel Mack unsigned char buf[2]; 314f0b5e634SDaniel Mack int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 315f0b5e634SDaniel Mack int timeout = 10; 316978520b7STakashi Iwai int idx = 0, err; 317f0b5e634SDaniel Mack 31847ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 31988a8516aSOliver Neukum if (err < 0) 32088a8516aSOliver Neukum return -EIO; 3216bc170e4SDaniel Mack 322f0b5e634SDaniel Mack while (timeout-- > 0) { 3233360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3245a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 325f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3265a9a8ecaSStephen Barber validx, idx, buf, val_len); 3275a9a8ecaSStephen Barber if (err >= val_len) { 328f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 329978520b7STakashi Iwai err = 0; 330978520b7STakashi Iwai goto out; 3315a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 3325a9a8ecaSStephen Barber goto out; 333f0b5e634SDaniel Mack } 334f0b5e634SDaniel Mack } 3350ba41d91STakashi Iwai usb_audio_dbg(chip, 3360ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 337978520b7STakashi Iwai request, validx, idx, cval->val_type); 338978520b7STakashi Iwai err = -EINVAL; 339978520b7STakashi Iwai 340978520b7STakashi Iwai out: 34147ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 342978520b7STakashi Iwai return err; 343f0b5e634SDaniel Mack } 344f0b5e634SDaniel Mack 3456bc170e4SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 3466bc170e4SDaniel Mack int validx, int *value_ret) 34723caaf19SDaniel Mack { 3483360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 349447cae58SKirill Marinushkin /* enough space for one range */ 350447cae58SKirill Marinushkin unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; 35123caaf19SDaniel Mack unsigned char *val; 352447cae58SKirill Marinushkin int idx = 0, ret, val_size, size; 35323caaf19SDaniel Mack __u8 bRequest; 35423caaf19SDaniel Mack 355447cae58SKirill Marinushkin val_size = uac2_ctl_value_size(cval->val_type); 356447cae58SKirill Marinushkin 357e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 358e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 359447cae58SKirill Marinushkin size = val_size; 360e8bdb6bbSDaniel Mack } else { 361e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 362447cae58SKirill Marinushkin size = sizeof(__u16) + 3 * val_size; 363e8bdb6bbSDaniel Mack } 364e8bdb6bbSDaniel Mack 365e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 36623caaf19SDaniel Mack 36747ab1545STakashi Iwai ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 36888a8516aSOliver Neukum if (ret) 36988a8516aSOliver Neukum goto error; 37088a8516aSOliver Neukum 3713360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3723d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 37323caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 374978520b7STakashi Iwai validx, idx, buf, size); 37547ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 37623caaf19SDaniel Mack 37723caaf19SDaniel Mack if (ret < 0) { 37888a8516aSOliver Neukum error: 3790ba41d91STakashi Iwai usb_audio_err(chip, 3800ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 381978520b7STakashi Iwai request, validx, idx, cval->val_type); 38223caaf19SDaniel Mack return ret; 38323caaf19SDaniel Mack } 38423caaf19SDaniel Mack 385e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 386e8bdb6bbSDaniel Mack 38723caaf19SDaniel Mack switch (request) { 38823caaf19SDaniel Mack case UAC_GET_CUR: 38923caaf19SDaniel Mack val = buf; 39023caaf19SDaniel Mack break; 39123caaf19SDaniel Mack case UAC_GET_MIN: 39223caaf19SDaniel Mack val = buf + sizeof(__u16); 39323caaf19SDaniel Mack break; 39423caaf19SDaniel Mack case UAC_GET_MAX: 395447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size; 39623caaf19SDaniel Mack break; 39723caaf19SDaniel Mack case UAC_GET_RES: 398447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size * 2; 39923caaf19SDaniel Mack break; 40023caaf19SDaniel Mack default: 40123caaf19SDaniel Mack return -EINVAL; 40223caaf19SDaniel Mack } 40323caaf19SDaniel Mack 404447cae58SKirill Marinushkin *value_ret = convert_signed_value(cval, 405447cae58SKirill Marinushkin snd_usb_combine_bytes(val, val_size)); 40623caaf19SDaniel Mack 40723caaf19SDaniel Mack return 0; 40823caaf19SDaniel Mack } 40923caaf19SDaniel Mack 4106bc170e4SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, 4116bc170e4SDaniel Mack int validx, int *value_ret) 41223caaf19SDaniel Mack { 4139f814105SEldad Zack validx += cval->idx_off; 4149f814105SEldad Zack 4153360b84bSTakashi Iwai return (cval->head.mixer->protocol == UAC_VERSION_1) ? 41623caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 41723caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 41823caaf19SDaniel Mack } 41923caaf19SDaniel Mack 4206bc170e4SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, 4216bc170e4SDaniel Mack int validx, int *value) 422f0b5e634SDaniel Mack { 423f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 424f0b5e634SDaniel Mack } 425f0b5e634SDaniel Mack 426f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 427f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 428f0b5e634SDaniel Mack int channel, int *value) 429f0b5e634SDaniel Mack { 4306bc170e4SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, 4316bc170e4SDaniel Mack (cval->control << 8) | channel, 4326bc170e4SDaniel Mack value); 433f0b5e634SDaniel Mack } 434f0b5e634SDaniel Mack 435eef90451SChris J Arges int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, 436f0b5e634SDaniel Mack int channel, int index, int *value) 437f0b5e634SDaniel Mack { 438f0b5e634SDaniel Mack int err; 439f0b5e634SDaniel Mack 440f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 441f0b5e634SDaniel Mack *value = cval->cache_val[index]; 442f0b5e634SDaniel Mack return 0; 443f0b5e634SDaniel Mack } 444f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 445f0b5e634SDaniel Mack if (err < 0) { 4463360b84bSTakashi Iwai if (!cval->head.mixer->ignore_ctl_error) 4473360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 4480ba41d91STakashi Iwai "cannot get current value for control %d ch %d: err = %d\n", 449f0b5e634SDaniel Mack cval->control, channel, err); 450f0b5e634SDaniel Mack return err; 451f0b5e634SDaniel Mack } 452f0b5e634SDaniel Mack cval->cached |= 1 << channel; 453f0b5e634SDaniel Mack cval->cache_val[index] = *value; 454f0b5e634SDaniel Mack return 0; 455f0b5e634SDaniel Mack } 456f0b5e634SDaniel Mack 457f0b5e634SDaniel Mack /* 458f0b5e634SDaniel Mack * set a mixer value 459f0b5e634SDaniel Mack */ 460f0b5e634SDaniel Mack 461f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 462f0b5e634SDaniel Mack int request, int validx, int value_set) 463f0b5e634SDaniel Mack { 4643360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 465bc18e31cSJulian Scheel unsigned char buf[4]; 466978520b7STakashi Iwai int idx = 0, val_len, err, timeout = 10; 46723caaf19SDaniel Mack 4689f814105SEldad Zack validx += cval->idx_off; 4699f814105SEldad Zack 4709a2fe9b8SRuslan Bilovol 4713360b84bSTakashi Iwai if (cval->head.mixer->protocol == UAC_VERSION_1) { 47223caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 4739a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 474bc18e31cSJulian Scheel val_len = uac2_ctl_value_size(cval->val_type); 47523caaf19SDaniel Mack 47623caaf19SDaniel Mack /* FIXME */ 47723caaf19SDaniel Mack if (request != UAC_SET_CUR) { 4780ba41d91STakashi Iwai usb_audio_dbg(chip, "RANGE setting not yet supported\n"); 47923caaf19SDaniel Mack return -EINVAL; 48023caaf19SDaniel Mack } 48123caaf19SDaniel Mack 48223caaf19SDaniel Mack request = UAC2_CS_CUR; 48323caaf19SDaniel Mack } 484f0b5e634SDaniel Mack 485f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 486f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 487f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 488bc18e31cSJulian Scheel buf[2] = (value_set >> 16) & 0xff; 489bc18e31cSJulian Scheel buf[3] = (value_set >> 24) & 0xff; 49047ab1545STakashi Iwai 49147ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 49288a8516aSOliver Neukum if (err < 0) 49388a8516aSOliver Neukum return -EIO; 49447ab1545STakashi Iwai 495978520b7STakashi Iwai while (timeout-- > 0) { 4963360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 4975a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, 4983d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 499f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 5005a9a8ecaSStephen Barber validx, idx, buf, val_len); 5015a9a8ecaSStephen Barber if (err >= 0) { 502978520b7STakashi Iwai err = 0; 503978520b7STakashi Iwai goto out; 5045a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 5055a9a8ecaSStephen Barber goto out; 50688a8516aSOliver Neukum } 507978520b7STakashi Iwai } 5080ba41d91STakashi Iwai usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 509978520b7STakashi Iwai request, validx, idx, cval->val_type, buf[0], buf[1]); 510978520b7STakashi Iwai err = -EINVAL; 511978520b7STakashi Iwai 512978520b7STakashi Iwai out: 51347ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 514978520b7STakashi Iwai return err; 515f0b5e634SDaniel Mack } 516f0b5e634SDaniel Mack 5176bc170e4SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, 5186bc170e4SDaniel Mack int validx, int value) 519f0b5e634SDaniel Mack { 520f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 521f0b5e634SDaniel Mack } 522f0b5e634SDaniel Mack 523eef90451SChris J Arges int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 524f0b5e634SDaniel Mack int index, int value) 525f0b5e634SDaniel Mack { 526f0b5e634SDaniel Mack int err; 527a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 528a6a33259SDaniel Mack cval->master_readonly : 529a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 530a6a33259SDaniel Mack 531a6a33259SDaniel Mack if (read_only) { 5323360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 5330ba41d91STakashi Iwai "%s(): channel %d of control %d is read_only\n", 534a6a33259SDaniel Mack __func__, channel, cval->control); 535a6a33259SDaniel Mack return 0; 536a6a33259SDaniel Mack } 537a6a33259SDaniel Mack 5386bc170e4SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, 5396bc170e4SDaniel Mack UAC_SET_CUR, (cval->control << 8) | channel, 540f0b5e634SDaniel Mack value); 541f0b5e634SDaniel Mack if (err < 0) 542f0b5e634SDaniel Mack return err; 543f0b5e634SDaniel Mack cval->cached |= 1 << channel; 544f0b5e634SDaniel Mack cval->cache_val[index] = value; 545f0b5e634SDaniel Mack return 0; 546f0b5e634SDaniel Mack } 547f0b5e634SDaniel Mack 548f0b5e634SDaniel Mack /* 549f0b5e634SDaniel Mack * TLV callback for mixer volume controls 550f0b5e634SDaniel Mack */ 551285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 552f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 553f0b5e634SDaniel Mack { 554f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 555f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 556f0b5e634SDaniel Mack 557f0b5e634SDaniel Mack if (size < sizeof(scale)) 558f0b5e634SDaniel Mack return -ENOMEM; 5590f174b35STakashi Iwai if (cval->min_mute) 5600f174b35STakashi Iwai scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; 561f0b5e634SDaniel Mack scale[2] = cval->dBmin; 562f0b5e634SDaniel Mack scale[3] = cval->dBmax; 563f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 564f0b5e634SDaniel Mack return -EFAULT; 565f0b5e634SDaniel Mack return 0; 566f0b5e634SDaniel Mack } 567f0b5e634SDaniel Mack 568f0b5e634SDaniel Mack /* 569f0b5e634SDaniel Mack * parser routines begin here... 570f0b5e634SDaniel Mack */ 571f0b5e634SDaniel Mack 572f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 573f0b5e634SDaniel Mack 574f0b5e634SDaniel Mack 575f0b5e634SDaniel Mack /* 576f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 577f0b5e634SDaniel Mack * used for mixer unit parser 578f0b5e634SDaniel Mack */ 5796bc170e4SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, 5806bc170e4SDaniel Mack int ich, int och, int num_outs) 581f0b5e634SDaniel Mack { 582f0b5e634SDaniel Mack int idx = ich * num_outs + och; 583f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 584f0b5e634SDaniel Mack } 585f0b5e634SDaniel Mack 586f0b5e634SDaniel Mack /* 587f0b5e634SDaniel Mack * add an alsa control element 588f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 589f0b5e634SDaniel Mack * 590f0b5e634SDaniel Mack * if failed, give up and free the control instance. 591f0b5e634SDaniel Mack */ 592f0b5e634SDaniel Mack 5933360b84bSTakashi Iwai int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, 594ef9d5970SDaniel Mack struct snd_kcontrol *kctl) 595f0b5e634SDaniel Mack { 5963360b84bSTakashi Iwai struct usb_mixer_interface *mixer = list->mixer; 597f0b5e634SDaniel Mack int err; 598f0b5e634SDaniel Mack 599ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 600f0b5e634SDaniel Mack kctl->id.index++; 601ef9d5970SDaniel Mack if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { 6026bc170e4SDaniel Mack usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", 6036bc170e4SDaniel Mack err); 604f0b5e634SDaniel Mack return err; 605f0b5e634SDaniel Mack } 6063360b84bSTakashi Iwai list->kctl = kctl; 6073360b84bSTakashi Iwai list->next_id_elem = mixer->id_elems[list->id]; 6083360b84bSTakashi Iwai mixer->id_elems[list->id] = list; 609f0b5e634SDaniel Mack return 0; 610f0b5e634SDaniel Mack } 611f0b5e634SDaniel Mack 612f0b5e634SDaniel Mack /* 613f0b5e634SDaniel Mack * get a terminal name string 614f0b5e634SDaniel Mack */ 615f0b5e634SDaniel Mack 616f0b5e634SDaniel Mack static struct iterm_name_combo { 617f0b5e634SDaniel Mack int type; 618f0b5e634SDaniel Mack char *name; 619f0b5e634SDaniel Mack } iterm_names[] = { 620f0b5e634SDaniel Mack { 0x0300, "Output" }, 621f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 622f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 623f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 624f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 625f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 626f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 627f0b5e634SDaniel Mack { 0x0307, "LFE" }, 628f0b5e634SDaniel Mack { 0x0600, "External In" }, 629f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 630f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 631f0b5e634SDaniel Mack { 0x0603, "Line" }, 632f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 633f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 634f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 635f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 636f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 637f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 638f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 639f0b5e634SDaniel Mack { 0x0703, "CD" }, 640f0b5e634SDaniel Mack { 0x0704, "DAT" }, 641f0b5e634SDaniel Mack { 0x0705, "DCC" }, 642f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 643f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 644f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 645f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 646f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 647f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 648f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 649f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 650f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 651f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 652f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 653f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 654f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 655f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 656f0b5e634SDaniel Mack { 0 }, 657f0b5e634SDaniel Mack }; 658f0b5e634SDaniel Mack 659eccfc1b8SRuslan Bilovol static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm, 660f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 661f0b5e634SDaniel Mack { 662f0b5e634SDaniel Mack struct iterm_name_combo *names; 66356a23ee5STakashi Iwai int len; 664f0b5e634SDaniel Mack 66556a23ee5STakashi Iwai if (iterm->name) { 666eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(chip, iterm->name, 6676bc170e4SDaniel Mack name, maxlen); 66856a23ee5STakashi Iwai if (len) 66956a23ee5STakashi Iwai return len; 67056a23ee5STakashi Iwai } 671f0b5e634SDaniel Mack 672f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 673f0b5e634SDaniel Mack if (iterm->type >> 16) { 674f0b5e634SDaniel Mack if (term_only) 675f0b5e634SDaniel Mack return 0; 676f0b5e634SDaniel Mack switch (iterm->type >> 16) { 677f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 6786bc170e4SDaniel Mack strcpy(name, "Selector"); 6796bc170e4SDaniel Mack return 8; 68069da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 6816bc170e4SDaniel Mack strcpy(name, "Process Unit"); 6826bc170e4SDaniel Mack return 12; 68369da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 6846bc170e4SDaniel Mack strcpy(name, "Ext Unit"); 6856bc170e4SDaniel Mack return 8; 686f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 6876bc170e4SDaniel Mack strcpy(name, "Mixer"); 6886bc170e4SDaniel Mack return 5; 689f0b5e634SDaniel Mack default: 690f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 691f0b5e634SDaniel Mack } 692f0b5e634SDaniel Mack } 693f0b5e634SDaniel Mack 694f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 695f0b5e634SDaniel Mack case 0x0100: 6966bc170e4SDaniel Mack strcpy(name, "PCM"); 6976bc170e4SDaniel Mack return 3; 698f0b5e634SDaniel Mack case 0x0200: 6996bc170e4SDaniel Mack strcpy(name, "Mic"); 7006bc170e4SDaniel Mack return 3; 701f0b5e634SDaniel Mack case 0x0400: 7026bc170e4SDaniel Mack strcpy(name, "Headset"); 7036bc170e4SDaniel Mack return 7; 704f0b5e634SDaniel Mack case 0x0500: 7056bc170e4SDaniel Mack strcpy(name, "Phone"); 7066bc170e4SDaniel Mack return 5; 707f0b5e634SDaniel Mack } 708f0b5e634SDaniel Mack 7096bc170e4SDaniel Mack for (names = iterm_names; names->type; names++) { 710f0b5e634SDaniel Mack if (names->type == iterm->type) { 711f0b5e634SDaniel Mack strcpy(name, names->name); 712f0b5e634SDaniel Mack return strlen(names->name); 713f0b5e634SDaniel Mack } 714f0b5e634SDaniel Mack } 715f0b5e634SDaniel Mack 7166bc170e4SDaniel Mack return 0; 7176bc170e4SDaniel Mack } 718f0b5e634SDaniel Mack 719f0b5e634SDaniel Mack /* 7206cfd839aSJorge Sanjuan * Get logical cluster information for UAC3 devices. 7216cfd839aSJorge Sanjuan */ 7226cfd839aSJorge Sanjuan static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id) 7236cfd839aSJorge Sanjuan { 7246cfd839aSJorge Sanjuan struct uac3_cluster_header_descriptor c_header; 7256cfd839aSJorge Sanjuan int err; 7266cfd839aSJorge Sanjuan 7276cfd839aSJorge Sanjuan err = snd_usb_ctl_msg(state->chip->dev, 7286cfd839aSJorge Sanjuan usb_rcvctrlpipe(state->chip->dev, 0), 7296cfd839aSJorge Sanjuan UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, 7306cfd839aSJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 7316cfd839aSJorge Sanjuan cluster_id, 7326cfd839aSJorge Sanjuan snd_usb_ctrl_intf(state->chip), 7336cfd839aSJorge Sanjuan &c_header, sizeof(c_header)); 7346cfd839aSJorge Sanjuan if (err < 0) 7356cfd839aSJorge Sanjuan goto error; 7366cfd839aSJorge Sanjuan if (err != sizeof(c_header)) { 7376cfd839aSJorge Sanjuan err = -EIO; 7386cfd839aSJorge Sanjuan goto error; 7396cfd839aSJorge Sanjuan } 7406cfd839aSJorge Sanjuan 7416cfd839aSJorge Sanjuan return c_header.bNrChannels; 7426cfd839aSJorge Sanjuan 7436cfd839aSJorge Sanjuan error: 7446cfd839aSJorge Sanjuan usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err); 7456cfd839aSJorge Sanjuan return err; 7466cfd839aSJorge Sanjuan } 7476cfd839aSJorge Sanjuan 7486cfd839aSJorge Sanjuan /* 7496cfd839aSJorge Sanjuan * Get number of channels for a Mixer Unit. 7506cfd839aSJorge Sanjuan */ 7516cfd839aSJorge Sanjuan static int uac_mixer_unit_get_channels(struct mixer_build *state, 7526cfd839aSJorge Sanjuan struct uac_mixer_unit_descriptor *desc) 7536cfd839aSJorge Sanjuan { 7546cfd839aSJorge Sanjuan int mu_channels; 7556cfd839aSJorge Sanjuan 7566cfd839aSJorge Sanjuan if (desc->bLength < 11) 7576cfd839aSJorge Sanjuan return -EINVAL; 7586cfd839aSJorge Sanjuan if (!desc->bNrInPins) 7596cfd839aSJorge Sanjuan return -EINVAL; 7606cfd839aSJorge Sanjuan 7616cfd839aSJorge Sanjuan switch (state->mixer->protocol) { 7626cfd839aSJorge Sanjuan case UAC_VERSION_1: 7636cfd839aSJorge Sanjuan case UAC_VERSION_2: 7646cfd839aSJorge Sanjuan default: 7656cfd839aSJorge Sanjuan mu_channels = uac_mixer_unit_bNrChannels(desc); 7666cfd839aSJorge Sanjuan break; 7676cfd839aSJorge Sanjuan case UAC_VERSION_3: 7686cfd839aSJorge Sanjuan mu_channels = get_cluster_channels_v3(state, 7696cfd839aSJorge Sanjuan uac3_mixer_unit_wClusterDescrID(desc)); 7706cfd839aSJorge Sanjuan break; 7716cfd839aSJorge Sanjuan } 7726cfd839aSJorge Sanjuan 7736cfd839aSJorge Sanjuan if (!mu_channels) 7746cfd839aSJorge Sanjuan return -EINVAL; 7756cfd839aSJorge Sanjuan 7766cfd839aSJorge Sanjuan return mu_channels; 7776cfd839aSJorge Sanjuan } 7786cfd839aSJorge Sanjuan 7796cfd839aSJorge Sanjuan /* 780f0b5e634SDaniel Mack * parse the source unit recursively until it reaches to a terminal 781f0b5e634SDaniel Mack * or a branched unit. 782f0b5e634SDaniel Mack */ 7836bc170e4SDaniel Mack static int check_input_term(struct mixer_build *state, int id, 7846bc170e4SDaniel Mack struct usb_audio_term *term) 785f0b5e634SDaniel Mack { 7869a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 78709414207SDaniel Mack int err; 78823caaf19SDaniel Mack void *p1; 789f0b5e634SDaniel Mack 790f0b5e634SDaniel Mack memset(term, 0, sizeof(*term)); 791f0b5e634SDaniel Mack while ((p1 = find_audio_control_unit(state, id)) != NULL) { 79223caaf19SDaniel Mack unsigned char *hdr = p1; 793f0b5e634SDaniel Mack term->id = id; 7949a2fe9b8SRuslan Bilovol 7959a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) { 79623caaf19SDaniel Mack switch (hdr[2]) { 797f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 7989a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) { 79923caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 8009a2fe9b8SRuslan Bilovol 80123caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 80223caaf19SDaniel Mack term->channels = d->bNrChannels; 80323caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 80423caaf19SDaniel Mack term->name = d->iTerminal; 80523caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 80623caaf19SDaniel Mack struct uac2_input_terminal_descriptor *d = p1; 8079430e547SJulian Scheel 8089430e547SJulian Scheel /* call recursively to verify that the 8099430e547SJulian Scheel * referenced clock entity is valid */ 8109430e547SJulian Scheel err = check_input_term(state, d->bCSourceID, term); 8119430e547SJulian Scheel if (err < 0) 8129430e547SJulian Scheel return err; 8139430e547SJulian Scheel 8149430e547SJulian Scheel /* save input term properties after recursion, 8159430e547SJulian Scheel * to ensure they are not overriden by the 8169430e547SJulian Scheel * recursion calls */ 8179430e547SJulian Scheel term->id = id; 81823caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 81923caaf19SDaniel Mack term->channels = d->bNrChannels; 82023caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 82123caaf19SDaniel Mack term->name = d->iTerminal; 82223caaf19SDaniel Mack } 823f0b5e634SDaniel Mack return 0; 82423caaf19SDaniel Mack case UAC_FEATURE_UNIT: { 82523caaf19SDaniel Mack /* the header is the same for v1 and v2 */ 82623caaf19SDaniel Mack struct uac_feature_unit_descriptor *d = p1; 8279a2fe9b8SRuslan Bilovol 8285e688883SDaniel Mack id = d->bSourceID; 829f0b5e634SDaniel Mack break; /* continue to parse */ 830f0b5e634SDaniel Mack } 83123caaf19SDaniel Mack case UAC_MIXER_UNIT: { 83223caaf19SDaniel Mack struct uac_mixer_unit_descriptor *d = p1; 8339a2fe9b8SRuslan Bilovol 83423caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 83523caaf19SDaniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 8369a2fe9b8SRuslan Bilovol term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol); 83723caaf19SDaniel Mack term->name = uac_mixer_unit_iMixer(d); 838f0b5e634SDaniel Mack return 0; 83923caaf19SDaniel Mack } 84009414207SDaniel Mack case UAC_SELECTOR_UNIT: 84109414207SDaniel Mack case UAC2_CLOCK_SELECTOR: { 84223caaf19SDaniel Mack struct uac_selector_unit_descriptor *d = p1; 84323caaf19SDaniel Mack /* call recursively to retrieve the channel info */ 8444d7b86c9SDaniel Mack err = check_input_term(state, d->baSourceID[0], term); 8454d7b86c9SDaniel Mack if (err < 0) 8464d7b86c9SDaniel Mack return err; 84723caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 84823caaf19SDaniel Mack term->id = id; 84923caaf19SDaniel Mack term->name = uac_selector_unit_iSelector(d); 85023caaf19SDaniel Mack return 0; 85123caaf19SDaniel Mack } 85269da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 8535dae5fd2SEldad Zack case UAC1_EXTENSION_UNIT: 8545dae5fd2SEldad Zack /* UAC2_PROCESSING_UNIT_V2 */ 85561ac5130STorstein Hegge /* UAC2_EFFECT_UNIT */ 85661ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: { 85723caaf19SDaniel Mack struct uac_processing_unit_descriptor *d = p1; 8585dae5fd2SEldad Zack 8599a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_2 && 8605dae5fd2SEldad Zack hdr[2] == UAC2_EFFECT_UNIT) { 8615dae5fd2SEldad Zack /* UAC2/UAC1 unit IDs overlap here in an 8625dae5fd2SEldad Zack * uncompatible way. Ignore this unit for now. 8635dae5fd2SEldad Zack */ 8645dae5fd2SEldad Zack return 0; 8655dae5fd2SEldad Zack } 8665dae5fd2SEldad Zack 86723caaf19SDaniel Mack if (d->bNrInPins) { 86823caaf19SDaniel Mack id = d->baSourceID[0]; 86923caaf19SDaniel Mack break; /* continue to parse */ 87023caaf19SDaniel Mack } 87123caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 87223caaf19SDaniel Mack term->channels = uac_processing_unit_bNrChannels(d); 8739a2fe9b8SRuslan Bilovol term->chconfig = uac_processing_unit_wChannelConfig(d, protocol); 8749a2fe9b8SRuslan Bilovol term->name = uac_processing_unit_iProcessing(d, protocol); 87523caaf19SDaniel Mack return 0; 87623caaf19SDaniel Mack } 87709414207SDaniel Mack case UAC2_CLOCK_SOURCE: { 87809414207SDaniel Mack struct uac_clock_source_descriptor *d = p1; 8799a2fe9b8SRuslan Bilovol 88009414207SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 88109414207SDaniel Mack term->id = id; 88209414207SDaniel Mack term->name = d->iClockSource; 88309414207SDaniel Mack return 0; 88409414207SDaniel Mack } 885f0b5e634SDaniel Mack default: 886f0b5e634SDaniel Mack return -ENODEV; 887f0b5e634SDaniel Mack } 8889a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 8899a2fe9b8SRuslan Bilovol switch (hdr[2]) { 8909a2fe9b8SRuslan Bilovol case UAC_INPUT_TERMINAL: { 8919a2fe9b8SRuslan Bilovol struct uac3_input_terminal_descriptor *d = p1; 8929a2fe9b8SRuslan Bilovol 8939a2fe9b8SRuslan Bilovol /* call recursively to verify that the 8949a2fe9b8SRuslan Bilovol * referenced clock entity is valid */ 8959a2fe9b8SRuslan Bilovol err = check_input_term(state, d->bCSourceID, term); 8969a2fe9b8SRuslan Bilovol if (err < 0) 8979a2fe9b8SRuslan Bilovol return err; 8989a2fe9b8SRuslan Bilovol 8999a2fe9b8SRuslan Bilovol /* save input term properties after recursion, 9009a2fe9b8SRuslan Bilovol * to ensure they are not overriden by the 9019a2fe9b8SRuslan Bilovol * recursion calls */ 9029a2fe9b8SRuslan Bilovol term->id = id; 9039a2fe9b8SRuslan Bilovol term->type = le16_to_cpu(d->wTerminalType); 9049a2fe9b8SRuslan Bilovol 9059a2fe9b8SRuslan Bilovol /* REVISIT: UAC3 IT doesn't have channels/cfg */ 9069a2fe9b8SRuslan Bilovol term->channels = 0; 9079a2fe9b8SRuslan Bilovol term->chconfig = 0; 9089a2fe9b8SRuslan Bilovol 9099a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wTerminalDescrStr); 9109a2fe9b8SRuslan Bilovol return 0; 9119a2fe9b8SRuslan Bilovol } 9129a2fe9b8SRuslan Bilovol case UAC3_FEATURE_UNIT: { 9139a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *d = p1; 9149a2fe9b8SRuslan Bilovol 9159a2fe9b8SRuslan Bilovol id = d->bSourceID; 9169a2fe9b8SRuslan Bilovol break; /* continue to parse */ 9179a2fe9b8SRuslan Bilovol } 9189a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SOURCE: { 9199a2fe9b8SRuslan Bilovol struct uac3_clock_source_descriptor *d = p1; 9209a2fe9b8SRuslan Bilovol 9219a2fe9b8SRuslan Bilovol term->type = d->bDescriptorSubtype << 16; /* virtual type */ 9229a2fe9b8SRuslan Bilovol term->id = id; 9239a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wClockSourceStr); 9249a2fe9b8SRuslan Bilovol return 0; 9259a2fe9b8SRuslan Bilovol } 9266cfd839aSJorge Sanjuan case UAC3_MIXER_UNIT: { 9276cfd839aSJorge Sanjuan struct uac_mixer_unit_descriptor *d = p1; 9286cfd839aSJorge Sanjuan 9296cfd839aSJorge Sanjuan err = uac_mixer_unit_get_channels(state, d); 9306cfd839aSJorge Sanjuan if (err < 0) 9316cfd839aSJorge Sanjuan return err; 9326cfd839aSJorge Sanjuan 9336cfd839aSJorge Sanjuan term->channels = err; 9346cfd839aSJorge Sanjuan term->type = d->bDescriptorSubtype << 16; /* virtual type */ 9356cfd839aSJorge Sanjuan 9366cfd839aSJorge Sanjuan return 0; 9376cfd839aSJorge Sanjuan } 9389a2fe9b8SRuslan Bilovol default: 9399a2fe9b8SRuslan Bilovol return -ENODEV; 9409a2fe9b8SRuslan Bilovol } 9419a2fe9b8SRuslan Bilovol } 942f0b5e634SDaniel Mack } 943f0b5e634SDaniel Mack return -ENODEV; 944f0b5e634SDaniel Mack } 945f0b5e634SDaniel Mack 946f0b5e634SDaniel Mack /* 947f0b5e634SDaniel Mack * Feature Unit 948f0b5e634SDaniel Mack */ 949f0b5e634SDaniel Mack 950f0b5e634SDaniel Mack /* feature unit control information */ 951f0b5e634SDaniel Mack struct usb_feature_control_info { 95221e9b3e9SAndrew Chant int control; 953f0b5e634SDaniel Mack const char *name; 954bc18e31cSJulian Scheel int type; /* data type for uac1 */ 955bc18e31cSJulian Scheel int type_uac2; /* data type for uac2 if different from uac1, else -1 */ 956f0b5e634SDaniel Mack }; 957f0b5e634SDaniel Mack 958f0b5e634SDaniel Mack static struct usb_feature_control_info audio_feature_info[] = { 95921e9b3e9SAndrew Chant { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 }, 96021e9b3e9SAndrew Chant { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 }, 96121e9b3e9SAndrew Chant { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 }, 96221e9b3e9SAndrew Chant { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 }, 96321e9b3e9SAndrew Chant { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 }, 96421e9b3e9SAndrew Chant { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemented yet */ 96521e9b3e9SAndrew Chant { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, 96621e9b3e9SAndrew Chant { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, 96721e9b3e9SAndrew Chant { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 }, 96821e9b3e9SAndrew Chant { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 }, 9692e0281d1SDaniel Mack /* UAC2 specific */ 97021e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 }, 97121e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 }, 97221e9b3e9SAndrew Chant { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, 973f0b5e634SDaniel Mack }; 974f0b5e634SDaniel Mack 975f0b5e634SDaniel Mack /* private_free callback */ 976eef90451SChris J Arges void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) 977f0b5e634SDaniel Mack { 978f0b5e634SDaniel Mack kfree(kctl->private_data); 979f0b5e634SDaniel Mack kctl->private_data = NULL; 980f0b5e634SDaniel Mack } 981f0b5e634SDaniel Mack 982f0b5e634SDaniel Mack /* 983f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 984f0b5e634SDaniel Mack */ 985f0b5e634SDaniel Mack 986dcaaf9f2STakashi Iwai /* volume control quirks */ 987dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 988dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 989dcaaf9f2STakashi Iwai { 9903360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 9910ba41d91STakashi Iwai switch (chip->usb_id) { 992d50ed624SEldad Zack case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ 993e9a25e04SMatt Gruskin case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ 994d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Duration") == 0) { 995d50ed624SEldad Zack cval->min = 0x0000; 996d50ed624SEldad Zack cval->max = 0xffff; 997d50ed624SEldad Zack cval->res = 0x00e6; 998d50ed624SEldad Zack break; 999d50ed624SEldad Zack } 1000d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Volume") == 0 || 1001d50ed624SEldad Zack strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 1002d50ed624SEldad Zack cval->min = 0x00; 1003d50ed624SEldad Zack cval->max = 0xff; 1004d50ed624SEldad Zack break; 1005d50ed624SEldad Zack } 1006d50ed624SEldad Zack if (strstr(kctl->id.name, "Effect Return") != NULL) { 1007d50ed624SEldad Zack cval->min = 0xb706; 1008d50ed624SEldad Zack cval->max = 0xff7b; 1009d50ed624SEldad Zack cval->res = 0x0073; 1010d50ed624SEldad Zack break; 1011d50ed624SEldad Zack } 1012d50ed624SEldad Zack if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 1013d50ed624SEldad Zack (strstr(kctl->id.name, "Effect Send") != NULL)) { 1014d50ed624SEldad Zack cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ 1015d50ed624SEldad Zack cval->max = 0xfcfe; 1016d50ed624SEldad Zack cval->res = 0x0073; 1017d50ed624SEldad Zack } 1018d50ed624SEldad Zack break; 1019d50ed624SEldad Zack 1020d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 1021d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 1022d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 10230ba41d91STakashi Iwai usb_audio_info(chip, 10240ba41d91STakashi Iwai "set quirk for FTU Effect Duration\n"); 1025d34bf148SFelix Homann cval->min = 0x0000; 1026d34bf148SFelix Homann cval->max = 0x7f00; 1027d34bf148SFelix Homann cval->res = 0x0100; 1028d34bf148SFelix Homann break; 1029d34bf148SFelix Homann } 1030d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 1031d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 10320ba41d91STakashi Iwai usb_audio_info(chip, 10330ba41d91STakashi Iwai "set quirks for FTU Effect Feedback/Volume\n"); 1034d34bf148SFelix Homann cval->min = 0x00; 1035d34bf148SFelix Homann cval->max = 0x7f; 1036d34bf148SFelix Homann break; 1037d34bf148SFelix Homann } 1038d34bf148SFelix Homann break; 1039d34bf148SFelix Homann 104021493316SFederico Cuello case USB_ID(0x0d8c, 0x0103): 104121493316SFederico Cuello if (!strcmp(kctl->id.name, "PCM Playback Volume")) { 104221493316SFederico Cuello usb_audio_info(chip, 104321493316SFederico Cuello "set volume quirk for CM102-A+/102S+\n"); 104421493316SFederico Cuello cval->min = -256; 104521493316SFederico Cuello } 104621493316SFederico Cuello break; 104721493316SFederico Cuello 1048dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 1049dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 1050dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 1051dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 1052dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 1053dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 1054dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 1055dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 1056dcaaf9f2STakashi Iwai */ 1057dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 1058dcaaf9f2STakashi Iwai cval->min == -15616) { 10590ba41d91STakashi Iwai usb_audio_info(chip, 1060dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 1061dcaaf9f2STakashi Iwai cval->max = -256; 1062dcaaf9f2STakashi Iwai } 1063dcaaf9f2STakashi Iwai break; 1064dcaaf9f2STakashi Iwai 1065dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 1066dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 10670ba41d91STakashi Iwai usb_audio_info(chip, 1068dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 1069dcaaf9f2STakashi Iwai cval->min = 6080; 1070dcaaf9f2STakashi Iwai cval->max = 8768; 1071dcaaf9f2STakashi Iwai cval->res = 192; 1072dcaaf9f2STakashi Iwai } 1073dcaaf9f2STakashi Iwai break; 1074dcaaf9f2STakashi Iwai 1075e805ca8bSTakashi Iwai case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ 1076dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 1077dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 107864559311SJason Lee Cragg case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ 107936691e1bSTakashi Iwai case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ 108055c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 108111e7064fSTakashi Iwai case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ 1082140d37deSMaksim A. Boyko case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ 10831ef9f058SWolfram Sang case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ 1084dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 108582ffb6fcSCon Kolivas case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ 1086dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 1087dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 108882ffb6fcSCon Kolivas * Probably there is some logitech magic behind this number --fishor 1089dcaaf9f2STakashi Iwai */ 1090dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 10910ba41d91STakashi Iwai usb_audio_info(chip, 1092dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 1093dcaaf9f2STakashi Iwai cval->res = 384; 1094dcaaf9f2STakashi Iwai } 1095dcaaf9f2STakashi Iwai break; 1096dcaaf9f2STakashi Iwai } 1097dcaaf9f2STakashi Iwai } 1098dcaaf9f2STakashi Iwai 1099f0b5e634SDaniel Mack /* 1100f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 1101f0b5e634SDaniel Mack */ 1102dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 1103dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 1104f0b5e634SDaniel Mack { 1105f0b5e634SDaniel Mack /* for failsafe */ 1106f0b5e634SDaniel Mack cval->min = default_min; 1107f0b5e634SDaniel Mack cval->max = cval->min + 1; 1108f0b5e634SDaniel Mack cval->res = 1; 1109f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 1110f0b5e634SDaniel Mack 1111f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1112f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1113f0b5e634SDaniel Mack cval->initialized = 1; 1114f0b5e634SDaniel Mack } else { 1115f0b5e634SDaniel Mack int minchn = 0; 1116f0b5e634SDaniel Mack if (cval->cmask) { 1117f0b5e634SDaniel Mack int i; 1118f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 1119f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 1120f0b5e634SDaniel Mack minchn = i + 1; 1121f0b5e634SDaniel Mack break; 1122f0b5e634SDaniel Mack } 1123f0b5e634SDaniel Mack } 1124f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 1125f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 11263360b84bSTakashi Iwai usb_audio_err(cval->head.mixer->chip, 11270ba41d91STakashi Iwai "%d:%d: cannot get min/max values for control %d (id %d)\n", 11283360b84bSTakashi Iwai cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), 11293360b84bSTakashi Iwai cval->control, cval->head.id); 1130f0b5e634SDaniel Mack return -EINVAL; 1131f0b5e634SDaniel Mack } 11326bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 11336bc170e4SDaniel Mack (cval->control << 8) | minchn, 11346bc170e4SDaniel Mack &cval->res) < 0) { 1135f0b5e634SDaniel Mack cval->res = 1; 1136f0b5e634SDaniel Mack } else { 1137f0b5e634SDaniel Mack int last_valid_res = cval->res; 1138f0b5e634SDaniel Mack 1139f0b5e634SDaniel Mack while (cval->res > 1) { 1140f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 11416bc170e4SDaniel Mack (cval->control << 8) | minchn, 11426bc170e4SDaniel Mack cval->res / 2) < 0) 1143f0b5e634SDaniel Mack break; 1144f0b5e634SDaniel Mack cval->res /= 2; 1145f0b5e634SDaniel Mack } 11466bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 11476bc170e4SDaniel Mack (cval->control << 8) | minchn, &cval->res) < 0) 1148f0b5e634SDaniel Mack cval->res = last_valid_res; 1149f0b5e634SDaniel Mack } 1150f0b5e634SDaniel Mack if (cval->res == 0) 1151f0b5e634SDaniel Mack cval->res = 1; 1152f0b5e634SDaniel Mack 1153f0b5e634SDaniel Mack /* Additional checks for the proper resolution 1154f0b5e634SDaniel Mack * 1155f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 1156f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 1157f0b5e634SDaniel Mack * to the lower aligned value. 1158f0b5e634SDaniel Mack */ 1159f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 1160f0b5e634SDaniel Mack int last_valid_res = cval->res; 1161f0b5e634SDaniel Mack int saved, test, check; 1162f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &saved); 1163f0b5e634SDaniel Mack for (;;) { 1164f0b5e634SDaniel Mack test = saved; 1165f0b5e634SDaniel Mack if (test < cval->max) 1166f0b5e634SDaniel Mack test += cval->res; 1167f0b5e634SDaniel Mack else 1168f0b5e634SDaniel Mack test -= cval->res; 1169f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 1170eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, test) || 1171f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 1172f0b5e634SDaniel Mack cval->res = last_valid_res; 1173f0b5e634SDaniel Mack break; 1174f0b5e634SDaniel Mack } 1175f0b5e634SDaniel Mack if (test == check) 1176f0b5e634SDaniel Mack break; 1177f0b5e634SDaniel Mack cval->res *= 2; 1178f0b5e634SDaniel Mack } 1179eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, saved); 1180f0b5e634SDaniel Mack } 1181f0b5e634SDaniel Mack 1182f0b5e634SDaniel Mack cval->initialized = 1; 1183f0b5e634SDaniel Mack } 1184f0b5e634SDaniel Mack 1185dcaaf9f2STakashi Iwai if (kctl) 1186dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 1187dcaaf9f2STakashi Iwai 1188f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 1189f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 1190f0b5e634SDaniel Mack */ 1191f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 1192f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 1193f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1194f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 1195f0b5e634SDaniel Mack if (cval->dBmin < 0) 1196f0b5e634SDaniel Mack cval->dBmax = 0; 1197f0b5e634SDaniel Mack else if (cval->dBmin > 0) 1198f0b5e634SDaniel Mack cval->dBmin = 0; 1199f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1200f0b5e634SDaniel Mack /* totally crap, return an error */ 1201f0b5e634SDaniel Mack return -EINVAL; 1202f0b5e634SDaniel Mack } 1203f0b5e634SDaniel Mack } 1204f0b5e634SDaniel Mack 1205f0b5e634SDaniel Mack return 0; 1206f0b5e634SDaniel Mack } 1207f0b5e634SDaniel Mack 1208dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 1209f0b5e634SDaniel Mack 1210f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 12116bc170e4SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, 12126bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 1213f0b5e634SDaniel Mack { 1214f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1215f0b5e634SDaniel Mack 1216f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1217f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 1218f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1219f0b5e634SDaniel Mack else 1220f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1221f0b5e634SDaniel Mack uinfo->count = cval->channels; 1222f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1223f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1224f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1225f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 1226f0b5e634SDaniel Mack } else { 12279fcd0ab1STakashi Iwai if (!cval->initialized) { 1228dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 12299fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 12309fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 12319fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 12329fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 12333360b84bSTakashi Iwai snd_ctl_notify(cval->head.mixer->chip->card, 12349fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 12359fcd0ab1STakashi Iwai &kcontrol->id); 12369fcd0ab1STakashi Iwai } 12379fcd0ab1STakashi Iwai } 1238f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1239f0b5e634SDaniel Mack uinfo->value.integer.max = 1240f0b5e634SDaniel Mack (cval->max - cval->min + cval->res - 1) / cval->res; 1241f0b5e634SDaniel Mack } 1242f0b5e634SDaniel Mack return 0; 1243f0b5e634SDaniel Mack } 1244f0b5e634SDaniel Mack 1245f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 12466bc170e4SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, 12476bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1248f0b5e634SDaniel Mack { 1249f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1250f0b5e634SDaniel Mack int c, cnt, val, err; 1251f0b5e634SDaniel Mack 1252f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1253f0b5e634SDaniel Mack if (cval->cmask) { 1254f0b5e634SDaniel Mack cnt = 0; 1255f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1256f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1257f0b5e634SDaniel Mack continue; 1258eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); 1259f0b5e634SDaniel Mack if (err < 0) 12605aeee342STakashi Iwai return filter_error(cval, err); 1261f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1262f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 1263f0b5e634SDaniel Mack cnt++; 1264f0b5e634SDaniel Mack } 1265f0b5e634SDaniel Mack return 0; 1266f0b5e634SDaniel Mack } else { 1267f0b5e634SDaniel Mack /* master channel */ 1268eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 1269f0b5e634SDaniel Mack if (err < 0) 12705aeee342STakashi Iwai return filter_error(cval, err); 1271f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1272f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1273f0b5e634SDaniel Mack } 1274f0b5e634SDaniel Mack return 0; 1275f0b5e634SDaniel Mack } 1276f0b5e634SDaniel Mack 1277f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 12786bc170e4SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, 12796bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1280f0b5e634SDaniel Mack { 1281f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1282f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1283f0b5e634SDaniel Mack int changed = 0; 1284f0b5e634SDaniel Mack 1285f0b5e634SDaniel Mack if (cval->cmask) { 1286f0b5e634SDaniel Mack cnt = 0; 1287f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1288f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1289f0b5e634SDaniel Mack continue; 1290eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); 1291f0b5e634SDaniel Mack if (err < 0) 12925aeee342STakashi Iwai return filter_error(cval, err); 1293f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1294f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1295f0b5e634SDaniel Mack if (oval != val) { 1296eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); 1297f0b5e634SDaniel Mack changed = 1; 1298f0b5e634SDaniel Mack } 1299f0b5e634SDaniel Mack cnt++; 1300f0b5e634SDaniel Mack } 1301f0b5e634SDaniel Mack } else { 1302f0b5e634SDaniel Mack /* master channel */ 1303eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); 1304f0b5e634SDaniel Mack if (err < 0) 13055aeee342STakashi Iwai return filter_error(cval, err); 1306f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1307f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1308f0b5e634SDaniel Mack if (val != oval) { 1309eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, 0, 0, val); 1310f0b5e634SDaniel Mack changed = 1; 1311f0b5e634SDaniel Mack } 1312f0b5e634SDaniel Mack } 1313f0b5e634SDaniel Mack return changed; 1314f0b5e634SDaniel Mack } 1315f0b5e634SDaniel Mack 1316568fa7e0SAndrew Chant /* get the boolean value from the master channel of a UAC control */ 1317568fa7e0SAndrew Chant static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol, 13185a222e84SAndrew Chant struct snd_ctl_elem_value *ucontrol) 13195a222e84SAndrew Chant { 13205a222e84SAndrew Chant struct usb_mixer_elem_info *cval = kcontrol->private_data; 13215a222e84SAndrew Chant int val, err; 13225a222e84SAndrew Chant 13235a222e84SAndrew Chant err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 13245a222e84SAndrew Chant if (err < 0) 13255a222e84SAndrew Chant return filter_error(cval, err); 13265a222e84SAndrew Chant val = (val != 0); 13275a222e84SAndrew Chant ucontrol->value.integer.value[0] = val; 13285a222e84SAndrew Chant return 0; 13295a222e84SAndrew Chant } 13305a222e84SAndrew Chant 13311d38f5d8SJorge Sanjuan /* get the connectors status and report it as boolean type */ 13321d38f5d8SJorge Sanjuan static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol, 13331d38f5d8SJorge Sanjuan struct snd_ctl_elem_value *ucontrol) 13341d38f5d8SJorge Sanjuan { 13351d38f5d8SJorge Sanjuan struct usb_mixer_elem_info *cval = kcontrol->private_data; 13361d38f5d8SJorge Sanjuan struct snd_usb_audio *chip = cval->head.mixer->chip; 13371d38f5d8SJorge Sanjuan int idx = 0, validx, ret, val; 13381d38f5d8SJorge Sanjuan 13391d38f5d8SJorge Sanjuan validx = cval->control << 8 | 0; 13401d38f5d8SJorge Sanjuan 13411d38f5d8SJorge Sanjuan ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 13421d38f5d8SJorge Sanjuan if (ret) 13431d38f5d8SJorge Sanjuan goto error; 13441d38f5d8SJorge Sanjuan 13451d38f5d8SJorge Sanjuan idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 13461d38f5d8SJorge Sanjuan if (cval->head.mixer->protocol == UAC_VERSION_2) { 13471d38f5d8SJorge Sanjuan struct uac2_connectors_ctl_blk uac2_conn; 13481d38f5d8SJorge Sanjuan 13491d38f5d8SJorge Sanjuan ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, 13501d38f5d8SJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 13511d38f5d8SJorge Sanjuan validx, idx, &uac2_conn, sizeof(uac2_conn)); 13521d38f5d8SJorge Sanjuan val = !!uac2_conn.bNrChannels; 13531d38f5d8SJorge Sanjuan } else { /* UAC_VERSION_3 */ 13541d38f5d8SJorge Sanjuan struct uac3_insertion_ctl_blk uac3_conn; 13551d38f5d8SJorge Sanjuan 13561d38f5d8SJorge Sanjuan ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, 13571d38f5d8SJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 13581d38f5d8SJorge Sanjuan validx, idx, &uac3_conn, sizeof(uac3_conn)); 13591d38f5d8SJorge Sanjuan val = !!uac3_conn.bmConInserted; 13601d38f5d8SJorge Sanjuan } 13611d38f5d8SJorge Sanjuan 13621d38f5d8SJorge Sanjuan snd_usb_unlock_shutdown(chip); 13631d38f5d8SJorge Sanjuan 13641d38f5d8SJorge Sanjuan if (ret < 0) { 13651d38f5d8SJorge Sanjuan error: 13661d38f5d8SJorge Sanjuan usb_audio_err(chip, 13671d38f5d8SJorge Sanjuan "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 13681d38f5d8SJorge Sanjuan UAC_GET_CUR, validx, idx, cval->val_type); 13691d38f5d8SJorge Sanjuan return ret; 13701d38f5d8SJorge Sanjuan } 13711d38f5d8SJorge Sanjuan 13721d38f5d8SJorge Sanjuan ucontrol->value.integer.value[0] = val; 13731d38f5d8SJorge Sanjuan return 0; 13741d38f5d8SJorge Sanjuan } 13751d38f5d8SJorge Sanjuan 1376f0b5e634SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl = { 1377f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1378f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1379f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1380f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1381f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1382f0b5e634SDaniel Mack }; 1383f0b5e634SDaniel Mack 138423caaf19SDaniel Mack /* the read-only variant */ 13858fdaebbbSBhumika Goyal static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 138623caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 138723caaf19SDaniel Mack .name = "", /* will be filled later manually */ 138823caaf19SDaniel Mack .info = mixer_ctl_feature_info, 138923caaf19SDaniel Mack .get = mixer_ctl_feature_get, 139023caaf19SDaniel Mack .put = NULL, 139123caaf19SDaniel Mack }; 139223caaf19SDaniel Mack 1393568fa7e0SAndrew Chant /* 1394568fa7e0SAndrew Chant * A control which shows the boolean value from reading a UAC control on 1395568fa7e0SAndrew Chant * the master channel. 1396568fa7e0SAndrew Chant */ 1397568fa7e0SAndrew Chant static struct snd_kcontrol_new usb_bool_master_control_ctl_ro = { 13985a222e84SAndrew Chant .iface = SNDRV_CTL_ELEM_IFACE_CARD, 13995a222e84SAndrew Chant .name = "", /* will be filled later manually */ 14005a222e84SAndrew Chant .access = SNDRV_CTL_ELEM_ACCESS_READ, 14015a222e84SAndrew Chant .info = snd_ctl_boolean_mono_info, 1402568fa7e0SAndrew Chant .get = mixer_ctl_master_bool_get, 14035a222e84SAndrew Chant .put = NULL, 14045a222e84SAndrew Chant }; 14055a222e84SAndrew Chant 14061d38f5d8SJorge Sanjuan static const struct snd_kcontrol_new usb_connector_ctl_ro = { 14071d38f5d8SJorge Sanjuan .iface = SNDRV_CTL_ELEM_IFACE_CARD, 14081d38f5d8SJorge Sanjuan .name = "", /* will be filled later manually */ 14091d38f5d8SJorge Sanjuan .access = SNDRV_CTL_ELEM_ACCESS_READ, 14101d38f5d8SJorge Sanjuan .info = snd_ctl_boolean_mono_info, 14111d38f5d8SJorge Sanjuan .get = mixer_ctl_connector_get, 14121d38f5d8SJorge Sanjuan .put = NULL, 14131d38f5d8SJorge Sanjuan }; 14141d38f5d8SJorge Sanjuan 14156bc170e4SDaniel Mack /* 14166bc170e4SDaniel Mack * This symbol is exported in order to allow the mixer quirks to 14176bc170e4SDaniel Mack * hook up to the standard feature unit control mechanism 14186bc170e4SDaniel Mack */ 14199e38658fSDaniel Mack struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1420f0b5e634SDaniel Mack 1421f0b5e634SDaniel Mack /* 1422f0b5e634SDaniel Mack * build a feature control 1423f0b5e634SDaniel Mack */ 1424f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1425f0b5e634SDaniel Mack { 1426f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1427f0b5e634SDaniel Mack } 1428f0b5e634SDaniel Mack 14296bc170e4SDaniel Mack /* 14306bc170e4SDaniel Mack * A lot of headsets/headphones have a "Speaker" mixer. Make sure we 14316bc170e4SDaniel Mack * rename it to "Headphone". We determine if something is a headphone 14326bc170e4SDaniel Mack * similar to how udev determines form factor. 14336bc170e4SDaniel Mack */ 14349b4ef977SDavid Henningsson static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, 14359b4ef977SDavid Henningsson struct snd_card *card) 14369b4ef977SDavid Henningsson { 14379b4ef977SDavid Henningsson const char *names_to_check[] = { 14389b4ef977SDavid Henningsson "Headset", "headset", "Headphone", "headphone", NULL}; 14399b4ef977SDavid Henningsson const char **s; 1440e0f17c75SPeter Senna Tschudin bool found = false; 14419b4ef977SDavid Henningsson 14429b4ef977SDavid Henningsson if (strcmp("Speaker", kctl->id.name)) 14439b4ef977SDavid Henningsson return; 14449b4ef977SDavid Henningsson 14459b4ef977SDavid Henningsson for (s = names_to_check; *s; s++) 14469b4ef977SDavid Henningsson if (strstr(card->shortname, *s)) { 1447e0f17c75SPeter Senna Tschudin found = true; 14489b4ef977SDavid Henningsson break; 14499b4ef977SDavid Henningsson } 14509b4ef977SDavid Henningsson 14519b4ef977SDavid Henningsson if (!found) 14529b4ef977SDavid Henningsson return; 14539b4ef977SDavid Henningsson 14549b4ef977SDavid Henningsson strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); 14559b4ef977SDavid Henningsson } 14569b4ef977SDavid Henningsson 145721e9b3e9SAndrew Chant static struct usb_feature_control_info *get_feature_control_info(int control) 145821e9b3e9SAndrew Chant { 145921e9b3e9SAndrew Chant int i; 146021e9b3e9SAndrew Chant 146121e9b3e9SAndrew Chant for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) { 146221e9b3e9SAndrew Chant if (audio_feature_info[i].control == control) 146321e9b3e9SAndrew Chant return &audio_feature_info[i]; 146421e9b3e9SAndrew Chant } 146521e9b3e9SAndrew Chant return NULL; 146621e9b3e9SAndrew Chant } 146721e9b3e9SAndrew Chant 146817156f23SRuslan Bilovol static void __build_feature_ctl(struct usb_mixer_interface *mixer, 146917156f23SRuslan Bilovol const struct usbmix_name_map *imap, 1470f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 147117156f23SRuslan Bilovol struct usb_audio_term *iterm, 147217156f23SRuslan Bilovol struct usb_audio_term *oterm, 147317156f23SRuslan Bilovol int unitid, int nameid, int readonly_mask) 1474f0b5e634SDaniel Mack { 1475bc18e31cSJulian Scheel struct usb_feature_control_info *ctl_info; 1476f0b5e634SDaniel Mack unsigned int len = 0; 1477f0b5e634SDaniel Mack int mapped_name = 0; 1478f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1479f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1480f0b5e634SDaniel Mack const struct usbmix_name_map *map; 148180acefffSAlexey Fisher unsigned int range; 1482f0b5e634SDaniel Mack 148365f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1484f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1485f0b5e634SDaniel Mack return; 1486f0b5e634SDaniel Mack } 1487f0b5e634SDaniel Mack 148817156f23SRuslan Bilovol map = find_map(imap, unitid, control); 1489f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1490f0b5e634SDaniel Mack return; 1491f0b5e634SDaniel Mack 1492f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1493a860d95fSDaniel Mack if (!cval) 1494f0b5e634SDaniel Mack return; 149517156f23SRuslan Bilovol snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); 1496f0b5e634SDaniel Mack cval->control = control; 1497f0b5e634SDaniel Mack cval->cmask = ctl_mask; 149821e9b3e9SAndrew Chant 149921e9b3e9SAndrew Chant ctl_info = get_feature_control_info(control); 150062376025SColin Ian King if (!ctl_info) { 150162376025SColin Ian King kfree(cval); 150221e9b3e9SAndrew Chant return; 150362376025SColin Ian King } 150417156f23SRuslan Bilovol if (mixer->protocol == UAC_VERSION_1) 1505bc18e31cSJulian Scheel cval->val_type = ctl_info->type; 1506bc18e31cSJulian Scheel else /* UAC_VERSION_2 */ 1507bc18e31cSJulian Scheel cval->val_type = ctl_info->type_uac2 >= 0 ? 1508bc18e31cSJulian Scheel ctl_info->type_uac2 : ctl_info->type; 1509bc18e31cSJulian Scheel 1510a6a33259SDaniel Mack if (ctl_mask == 0) { 1511f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1512a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1513a6a33259SDaniel Mack } else { 1514f0b5e634SDaniel Mack int i, c = 0; 1515f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1516f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1517f0b5e634SDaniel Mack c++; 1518f0b5e634SDaniel Mack cval->channels = c; 1519a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1520f0b5e634SDaniel Mack } 1521f0b5e634SDaniel Mack 15226bc170e4SDaniel Mack /* 15236bc170e4SDaniel Mack * If all channels in the mask are marked read-only, make the control 1524eef90451SChris J Arges * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't 15256bc170e4SDaniel Mack * issue write commands to read-only channels. 15266bc170e4SDaniel Mack */ 1527a6a33259SDaniel Mack if (cval->channels == readonly_mask) 152823caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 152923caaf19SDaniel Mack else 1530f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 153123caaf19SDaniel Mack 1532f0b5e634SDaniel Mack if (!kctl) { 153317156f23SRuslan Bilovol usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); 1534f0b5e634SDaniel Mack kfree(cval); 1535f0b5e634SDaniel Mack return; 1536f0b5e634SDaniel Mack } 1537eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1538f0b5e634SDaniel Mack 1539f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1540f0b5e634SDaniel Mack mapped_name = len != 0; 1541f0b5e634SDaniel Mack if (!len && nameid) 154217156f23SRuslan Bilovol len = snd_usb_copy_string_desc(mixer->chip, nameid, 1543f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1544f0b5e634SDaniel Mack 1545f0b5e634SDaniel Mack switch (control) { 154665f25da4SDaniel Mack case UAC_FU_MUTE: 154765f25da4SDaniel Mack case UAC_FU_VOLUME: 15486bc170e4SDaniel Mack /* 15496bc170e4SDaniel Mack * determine the control name. the rule is: 1550f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1551f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1552f0b5e634SDaniel Mack * of terminal type. 1553f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1554f0b5e634SDaniel Mack * - otherwise, anonymous name. 1555f0b5e634SDaniel Mack */ 1556f0b5e634SDaniel Mack if (!len) { 155717156f23SRuslan Bilovol if (iterm) 155817156f23SRuslan Bilovol len = get_term_name(mixer->chip, iterm, 155917156f23SRuslan Bilovol kctl->id.name, 15606bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 156117156f23SRuslan Bilovol if (!len && oterm) 156217156f23SRuslan Bilovol len = get_term_name(mixer->chip, oterm, 15636bc170e4SDaniel Mack kctl->id.name, 15646bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1565f0b5e634SDaniel Mack if (!len) 156649fd46d2SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1567f0b5e634SDaniel Mack "Feature %d", unitid); 1568f0b5e634SDaniel Mack } 15699b4ef977SDavid Henningsson 15709b4ef977SDavid Henningsson if (!mapped_name) 157117156f23SRuslan Bilovol check_no_speaker_on_headset(kctl, mixer->chip->card); 15729b4ef977SDavid Henningsson 15736bc170e4SDaniel Mack /* 15746bc170e4SDaniel Mack * determine the stream direction: 1575f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1576f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1577f0b5e634SDaniel Mack */ 157817156f23SRuslan Bilovol if (!mapped_name && oterm && !(oterm->type >> 16)) { 157917156f23SRuslan Bilovol if ((oterm->type & 0xff00) == 0x0100) 158049fd46d2SDaniel Mack append_ctl_name(kctl, " Capture"); 15816bc170e4SDaniel Mack else 158249fd46d2SDaniel Mack append_ctl_name(kctl, " Playback"); 1583f0b5e634SDaniel Mack } 158465f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1585f0b5e634SDaniel Mack " Switch" : " Volume"); 1586e182534dSTakashi Iwai break; 1587e182534dSTakashi Iwai default: 1588e182534dSTakashi Iwai if (!len) 1589e182534dSTakashi Iwai strlcpy(kctl->id.name, audio_feature_info[control-1].name, 1590e182534dSTakashi Iwai sizeof(kctl->id.name)); 1591e182534dSTakashi Iwai break; 1592e182534dSTakashi Iwai } 1593e182534dSTakashi Iwai 1594e182534dSTakashi Iwai /* get min/max values */ 1595e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1596e182534dSTakashi Iwai 159765f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 159859bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 159938b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1600285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1601f0b5e634SDaniel Mack kctl->vd[0].access |= 1602f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1603f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 160459bb7f0eSTakashi Iwai } 1605f0b5e634SDaniel Mack } 1606f0b5e634SDaniel Mack 160717156f23SRuslan Bilovol snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl); 160842e3121dSAnssi Hannula 160980acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 16106bc170e4SDaniel Mack /* 16116bc170e4SDaniel Mack * Are there devices with volume range more than 255? I use a bit more 161280acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 161380acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 161480acefffSAlexey Fisher */ 161580acefffSAlexey Fisher if (range > 384) { 161617156f23SRuslan Bilovol usb_audio_warn(mixer->chip, 161782c1cf0aSMichał Mirosław "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", 161880acefffSAlexey Fisher range); 161917156f23SRuslan Bilovol usb_audio_warn(mixer->chip, 162082c1cf0aSMichał Mirosław "[%d] FU [%s] ch = %d, val = %d/%d/%d", 16213360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 162280acefffSAlexey Fisher cval->min, cval->max, cval->res); 162380acefffSAlexey Fisher } 162480acefffSAlexey Fisher 162517156f23SRuslan Bilovol usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 16263360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 16276bc170e4SDaniel Mack cval->min, cval->max, cval->res); 16283360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1629f0b5e634SDaniel Mack } 1630f0b5e634SDaniel Mack 163117156f23SRuslan Bilovol static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 163217156f23SRuslan Bilovol unsigned int ctl_mask, int control, 163317156f23SRuslan Bilovol struct usb_audio_term *iterm, int unitid, 163417156f23SRuslan Bilovol int readonly_mask) 163517156f23SRuslan Bilovol { 163617156f23SRuslan Bilovol struct uac_feature_unit_descriptor *desc = raw_desc; 163717156f23SRuslan Bilovol int nameid = uac_feature_unit_iFeature(desc); 163817156f23SRuslan Bilovol 163917156f23SRuslan Bilovol __build_feature_ctl(state->mixer, state->map, ctl_mask, control, 164017156f23SRuslan Bilovol iterm, &state->oterm, unitid, nameid, readonly_mask); 164117156f23SRuslan Bilovol } 164217156f23SRuslan Bilovol 164317156f23SRuslan Bilovol static void build_feature_ctl_badd(struct usb_mixer_interface *mixer, 164417156f23SRuslan Bilovol unsigned int ctl_mask, int control, int unitid, 164517156f23SRuslan Bilovol const struct usbmix_name_map *badd_map) 164617156f23SRuslan Bilovol { 164717156f23SRuslan Bilovol __build_feature_ctl(mixer, badd_map, ctl_mask, control, 164817156f23SRuslan Bilovol NULL, NULL, unitid, 0, 0); 164917156f23SRuslan Bilovol } 165017156f23SRuslan Bilovol 16515a222e84SAndrew Chant static void get_connector_control_name(struct mixer_build *state, 16525a222e84SAndrew Chant struct usb_audio_term *term, 16535a222e84SAndrew Chant bool is_input, char *name, int name_size) 16545a222e84SAndrew Chant { 1655eccfc1b8SRuslan Bilovol int name_len = get_term_name(state->chip, term, name, name_size, 0); 16565a222e84SAndrew Chant 16575a222e84SAndrew Chant if (name_len == 0) 16585a222e84SAndrew Chant strlcpy(name, "Unknown", name_size); 16595a222e84SAndrew Chant 16605a222e84SAndrew Chant /* 16615a222e84SAndrew Chant * sound/core/ctljack.c has a convention of naming jack controls 16625a222e84SAndrew Chant * by ending in " Jack". Make it slightly more useful by 16635a222e84SAndrew Chant * indicating Input or Output after the terminal name. 16645a222e84SAndrew Chant */ 16655a222e84SAndrew Chant if (is_input) 16665a222e84SAndrew Chant strlcat(name, " - Input Jack", name_size); 16675a222e84SAndrew Chant else 16685a222e84SAndrew Chant strlcat(name, " - Output Jack", name_size); 16695a222e84SAndrew Chant } 16705a222e84SAndrew Chant 16715a222e84SAndrew Chant /* Build a mixer control for a UAC connector control (jack-detect) */ 16725a222e84SAndrew Chant static void build_connector_control(struct mixer_build *state, 16735a222e84SAndrew Chant struct usb_audio_term *term, bool is_input) 16745a222e84SAndrew Chant { 16755a222e84SAndrew Chant struct snd_kcontrol *kctl; 16765a222e84SAndrew Chant struct usb_mixer_elem_info *cval; 16775a222e84SAndrew Chant 16785a222e84SAndrew Chant cval = kzalloc(sizeof(*cval), GFP_KERNEL); 16795a222e84SAndrew Chant if (!cval) 16805a222e84SAndrew Chant return; 16815a222e84SAndrew Chant snd_usb_mixer_elem_init_std(&cval->head, state->mixer, term->id); 1682568fa7e0SAndrew Chant /* 16831d38f5d8SJorge Sanjuan * UAC2: The first byte from reading the UAC2_TE_CONNECTOR control returns the 16841d38f5d8SJorge Sanjuan * number of channels connected. 16851d38f5d8SJorge Sanjuan * 16861d38f5d8SJorge Sanjuan * UAC3: The first byte specifies size of bitmap for the inserted controls. The 16871d38f5d8SJorge Sanjuan * following byte(s) specifies which connectors are inserted. 16881d38f5d8SJorge Sanjuan * 16891d38f5d8SJorge Sanjuan * This boolean ctl will simply report if any channels are connected 16901d38f5d8SJorge Sanjuan * or not. 1691568fa7e0SAndrew Chant */ 16921d38f5d8SJorge Sanjuan if (state->mixer->protocol == UAC_VERSION_2) 16935a222e84SAndrew Chant cval->control = UAC2_TE_CONNECTOR; 16941d38f5d8SJorge Sanjuan else /* UAC_VERSION_3 */ 16951d38f5d8SJorge Sanjuan cval->control = UAC3_TE_INSERTION; 16961d38f5d8SJorge Sanjuan 16975a222e84SAndrew Chant cval->val_type = USB_MIXER_BOOLEAN; 16985a222e84SAndrew Chant cval->channels = 1; /* report true if any channel is connected */ 16995a222e84SAndrew Chant cval->min = 0; 17005a222e84SAndrew Chant cval->max = 1; 17011d38f5d8SJorge Sanjuan kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval); 17025a222e84SAndrew Chant if (!kctl) { 17035a222e84SAndrew Chant usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 17045a222e84SAndrew Chant kfree(cval); 17055a222e84SAndrew Chant return; 17065a222e84SAndrew Chant } 17075a222e84SAndrew Chant get_connector_control_name(state, term, is_input, kctl->id.name, 17085a222e84SAndrew Chant sizeof(kctl->id.name)); 17095a222e84SAndrew Chant kctl->private_free = snd_usb_mixer_elem_free; 17105a222e84SAndrew Chant snd_usb_mixer_add_control(&cval->head, kctl); 17115a222e84SAndrew Chant } 17125a222e84SAndrew Chant 1713cddaafb9SDaniel Mack static int parse_clock_source_unit(struct mixer_build *state, int unitid, 1714cddaafb9SDaniel Mack void *_ftr) 1715cddaafb9SDaniel Mack { 1716cddaafb9SDaniel Mack struct uac_clock_source_descriptor *hdr = _ftr; 1717cddaafb9SDaniel Mack struct usb_mixer_elem_info *cval; 1718cddaafb9SDaniel Mack struct snd_kcontrol *kctl; 1719cddaafb9SDaniel Mack char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 1720cddaafb9SDaniel Mack int ret; 1721cddaafb9SDaniel Mack 1722cddaafb9SDaniel Mack if (state->mixer->protocol != UAC_VERSION_2) 1723cddaafb9SDaniel Mack return -EINVAL; 1724cddaafb9SDaniel Mack 1725cddaafb9SDaniel Mack if (hdr->bLength != sizeof(*hdr)) { 1726cddaafb9SDaniel Mack usb_audio_dbg(state->chip, 1727cddaafb9SDaniel Mack "Bogus clock source descriptor length of %d, ignoring.\n", 1728cddaafb9SDaniel Mack hdr->bLength); 1729cddaafb9SDaniel Mack return 0; 1730cddaafb9SDaniel Mack } 1731cddaafb9SDaniel Mack 1732cddaafb9SDaniel Mack /* 1733cddaafb9SDaniel Mack * The only property of this unit we are interested in is the 1734cddaafb9SDaniel Mack * clock source validity. If that isn't readable, just bail out. 1735cddaafb9SDaniel Mack */ 17369a2fe9b8SRuslan Bilovol if (!uac_v2v3_control_is_readable(hdr->bmControls, 173721e9b3e9SAndrew Chant UAC2_CS_CONTROL_CLOCK_VALID)) 1738cddaafb9SDaniel Mack return 0; 1739cddaafb9SDaniel Mack 1740cddaafb9SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1741cddaafb9SDaniel Mack if (!cval) 1742cddaafb9SDaniel Mack return -ENOMEM; 1743cddaafb9SDaniel Mack 1744cddaafb9SDaniel Mack snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); 1745cddaafb9SDaniel Mack 1746cddaafb9SDaniel Mack cval->min = 0; 1747cddaafb9SDaniel Mack cval->max = 1; 1748cddaafb9SDaniel Mack cval->channels = 1; 1749cddaafb9SDaniel Mack cval->val_type = USB_MIXER_BOOLEAN; 1750cddaafb9SDaniel Mack cval->control = UAC2_CS_CONTROL_CLOCK_VALID; 1751cddaafb9SDaniel Mack 1752cddaafb9SDaniel Mack cval->master_readonly = 1; 1753568fa7e0SAndrew Chant /* From UAC2 5.2.5.1.2 "Only the get request is supported." */ 1754568fa7e0SAndrew Chant kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval); 1755cddaafb9SDaniel Mack 1756cddaafb9SDaniel Mack if (!kctl) { 1757cddaafb9SDaniel Mack kfree(cval); 1758cddaafb9SDaniel Mack return -ENOMEM; 1759cddaafb9SDaniel Mack } 1760cddaafb9SDaniel Mack 1761cddaafb9SDaniel Mack kctl->private_free = snd_usb_mixer_elem_free; 1762eccfc1b8SRuslan Bilovol ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource, 1763cddaafb9SDaniel Mack name, sizeof(name)); 1764cddaafb9SDaniel Mack if (ret > 0) 1765cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1766cddaafb9SDaniel Mack "%s Validity", name); 1767cddaafb9SDaniel Mack else 1768cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1769cddaafb9SDaniel Mack "Clock Source %d Validity", hdr->bClockID); 1770cddaafb9SDaniel Mack 1771cddaafb9SDaniel Mack return snd_usb_mixer_add_control(&cval->head, kctl); 1772cddaafb9SDaniel Mack } 1773cddaafb9SDaniel Mack 1774f0b5e634SDaniel Mack /* 1775f0b5e634SDaniel Mack * parse a feature unit 1776f0b5e634SDaniel Mack * 177725985edcSLucas De Marchi * most of controls are defined here. 1778f0b5e634SDaniel Mack */ 17796bc170e4SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, 17806bc170e4SDaniel Mack void *_ftr) 1781f0b5e634SDaniel Mack { 1782f0b5e634SDaniel Mack int channels, i, j; 1783f0b5e634SDaniel Mack struct usb_audio_term iterm; 1784f0b5e634SDaniel Mack unsigned int master_bits, first_ch_bits; 1785f0b5e634SDaniel Mack int err, csize; 178623caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 178723caaf19SDaniel Mack __u8 *bmaControls; 1788f0b5e634SDaniel Mack 178923caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1790d937cd67STakashi Iwai if (hdr->bLength < 7) { 1791d937cd67STakashi Iwai usb_audio_err(state->chip, 1792d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1793d937cd67STakashi Iwai unitid); 1794d937cd67STakashi Iwai return -EINVAL; 1795d937cd67STakashi Iwai } 179623caaf19SDaniel Mack csize = hdr->bControlSize; 17973c02a6d9STakashi Iwai if (!csize) { 17980ba41d91STakashi Iwai usb_audio_dbg(state->chip, 17993c02a6d9STakashi Iwai "unit %u: invalid bControlSize == 0\n", 18000ba41d91STakashi Iwai unitid); 180160c961a9SNicolai Krakowiak return -EINVAL; 180260c961a9SNicolai Krakowiak } 180323caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 180423caaf19SDaniel Mack bmaControls = hdr->bmaControls; 1805d56268fbSClemens Ladisch if (hdr->bLength < 7 + csize) { 18060ba41d91STakashi Iwai usb_audio_err(state->chip, 18070ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1808d56268fbSClemens Ladisch unitid); 1809d56268fbSClemens Ladisch return -EINVAL; 1810d56268fbSClemens Ladisch } 18119a2fe9b8SRuslan Bilovol } else if (state->mixer->protocol == UAC_VERSION_2) { 181223caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 1813d937cd67STakashi Iwai if (hdr->bLength < 6) { 1814d937cd67STakashi Iwai usb_audio_err(state->chip, 1815d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1816d937cd67STakashi Iwai unitid); 1817d937cd67STakashi Iwai return -EINVAL; 1818d937cd67STakashi Iwai } 181923caaf19SDaniel Mack csize = 4; 1820e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 182123caaf19SDaniel Mack bmaControls = ftr->bmaControls; 1822d56268fbSClemens Ladisch if (hdr->bLength < 6 + csize) { 18230ba41d91STakashi Iwai usb_audio_err(state->chip, 18240ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1825d56268fbSClemens Ladisch unitid); 1826f0b5e634SDaniel Mack return -EINVAL; 1827f0b5e634SDaniel Mack } 18289a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 18299a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *ftr = _ftr; 18309a2fe9b8SRuslan Bilovol 18319a2fe9b8SRuslan Bilovol if (hdr->bLength < 7) { 18329a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 18339a2fe9b8SRuslan Bilovol "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n", 18349a2fe9b8SRuslan Bilovol unitid); 18359a2fe9b8SRuslan Bilovol return -EINVAL; 18369a2fe9b8SRuslan Bilovol } 18379a2fe9b8SRuslan Bilovol csize = 4; 18389a2fe9b8SRuslan Bilovol channels = (ftr->bLength - 7) / 4 - 1; 18399a2fe9b8SRuslan Bilovol bmaControls = ftr->bmaControls; 18409a2fe9b8SRuslan Bilovol if (hdr->bLength < 7 + csize) { 18419a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 18429a2fe9b8SRuslan Bilovol "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n", 18439a2fe9b8SRuslan Bilovol unitid); 18449a2fe9b8SRuslan Bilovol return -EINVAL; 18459a2fe9b8SRuslan Bilovol } 1846d56268fbSClemens Ladisch } 1847f0b5e634SDaniel Mack 1848f0b5e634SDaniel Mack /* parse the source unit */ 184923caaf19SDaniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 1850f0b5e634SDaniel Mack return err; 1851f0b5e634SDaniel Mack 1852f0b5e634SDaniel Mack /* determine the input source type and name */ 18534d7b86c9SDaniel Mack err = check_input_term(state, hdr->bSourceID, &iterm); 18544d7b86c9SDaniel Mack if (err < 0) 18554d7b86c9SDaniel Mack return err; 1856f0b5e634SDaniel Mack 185723caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 1858f0b5e634SDaniel Mack /* master configuration quirks */ 1859f0b5e634SDaniel Mack switch (state->chip->usb_id) { 1860f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 18610ba41d91STakashi Iwai usb_audio_info(state->chip, 1862f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 1863f0b5e634SDaniel Mack /* disable non-functional volume control */ 186465f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 1865f0b5e634SDaniel Mack break; 1866c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 18670ba41d91STakashi Iwai usb_audio_info(state->chip, 1868c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 1869c1051439SDavid Henningsson /* disable non-functional volume control */ 1870c1051439SDavid Henningsson channels = 0; 1871c1051439SDavid Henningsson break; 1872c1051439SDavid Henningsson 1873f0b5e634SDaniel Mack } 1874f0b5e634SDaniel Mack if (channels > 0) 187523caaf19SDaniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 1876f0b5e634SDaniel Mack else 1877f0b5e634SDaniel Mack first_ch_bits = 0; 187823caaf19SDaniel Mack 187923caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1880f0b5e634SDaniel Mack /* check all control types */ 1881f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 1882f0b5e634SDaniel Mack unsigned int ch_bits = 0; 188321e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 188421e9b3e9SAndrew Chant 1885f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 18866bc170e4SDaniel Mack unsigned int mask; 18876bc170e4SDaniel Mack 18886bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 18896bc170e4SDaniel Mack csize * (j+1), csize); 1890f0b5e634SDaniel Mack if (mask & (1 << i)) 1891f0b5e634SDaniel Mack ch_bits |= (1 << j); 1892f0b5e634SDaniel Mack } 189323caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 18946bc170e4SDaniel Mack 18956bc170e4SDaniel Mack /* 18966bc170e4SDaniel Mack * The first channel must be set 18976bc170e4SDaniel Mack * (for ease of programming). 18986bc170e4SDaniel Mack */ 18996bc170e4SDaniel Mack if (ch_bits & 1) 190021e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 19016bc170e4SDaniel Mack &iterm, unitid, 0); 1902f0b5e634SDaniel Mack if (master_bits & (1 << i)) 190321e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, 0, control, 190421e9b3e9SAndrew Chant &iterm, unitid, 0); 190523caaf19SDaniel Mack } 19069a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 1907d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 190823caaf19SDaniel Mack unsigned int ch_bits = 0; 190923caaf19SDaniel Mack unsigned int ch_read_only = 0; 191021e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 191123caaf19SDaniel Mack 191223caaf19SDaniel Mack for (j = 0; j < channels; j++) { 19136bc170e4SDaniel Mack unsigned int mask; 19146bc170e4SDaniel Mack 19156bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 19166bc170e4SDaniel Mack csize * (j+1), csize); 191721e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(mask, control)) { 191823caaf19SDaniel Mack ch_bits |= (1 << j); 191921e9b3e9SAndrew Chant if (!uac_v2v3_control_is_writeable(mask, control)) 192023caaf19SDaniel Mack ch_read_only |= (1 << j); 192123caaf19SDaniel Mack } 192223caaf19SDaniel Mack } 192323caaf19SDaniel Mack 19246bc170e4SDaniel Mack /* 19256bc170e4SDaniel Mack * NOTE: build_feature_ctl() will mark the control 19266bc170e4SDaniel Mack * read-only if all channels are marked read-only in 19276bc170e4SDaniel Mack * the descriptors. Otherwise, the control will be 19286bc170e4SDaniel Mack * reported as writeable, but the driver will not 19296bc170e4SDaniel Mack * actually issue a write command for read-only 19306bc170e4SDaniel Mack * channels. 19316bc170e4SDaniel Mack */ 19326bc170e4SDaniel Mack 19336bc170e4SDaniel Mack /* 19346bc170e4SDaniel Mack * The first channel must be set 19356bc170e4SDaniel Mack * (for ease of programming). 19366bc170e4SDaniel Mack */ 19376bc170e4SDaniel Mack if (ch_bits & 1) 193821e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 19396bc170e4SDaniel Mack &iterm, unitid, ch_read_only); 194021e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(master_bits, control)) 19412de841efSTakashi Iwai build_feature_ctl(state, _ftr, 0, control, 19422de841efSTakashi Iwai &iterm, unitid, 194321e9b3e9SAndrew Chant !uac_v2v3_control_is_writeable(master_bits, 194421e9b3e9SAndrew Chant control)); 194523caaf19SDaniel Mack } 1946f0b5e634SDaniel Mack } 1947f0b5e634SDaniel Mack 1948f0b5e634SDaniel Mack return 0; 1949f0b5e634SDaniel Mack } 1950f0b5e634SDaniel Mack 1951f0b5e634SDaniel Mack /* 1952f0b5e634SDaniel Mack * Mixer Unit 1953f0b5e634SDaniel Mack */ 1954f0b5e634SDaniel Mack 1955f0b5e634SDaniel Mack /* 1956f0b5e634SDaniel Mack * build a mixer unit control 1957f0b5e634SDaniel Mack * 1958f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 1959f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 1960f0b5e634SDaniel Mack */ 196199fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 196299fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 19636cfd839aSJorge Sanjuan int in_pin, int in_ch, int num_outs, 19646cfd839aSJorge Sanjuan int unitid, struct usb_audio_term *iterm) 1965f0b5e634SDaniel Mack { 1966f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1967f0b5e634SDaniel Mack unsigned int i, len; 1968f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1969f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1970f0b5e634SDaniel Mack 197117156f23SRuslan Bilovol map = find_map(state->map, unitid, 0); 1972f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1973f0b5e634SDaniel Mack return; 1974f0b5e634SDaniel Mack 1975f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1976f0b5e634SDaniel Mack if (!cval) 1977f0b5e634SDaniel Mack return; 1978f0b5e634SDaniel Mack 19793360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 1980f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 1981f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 1982f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 19836bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); 19846bc170e4SDaniel Mack 19856bc170e4SDaniel Mack if (check_matrix_bitmap(c, in_ch, i, num_outs)) { 1986f0b5e634SDaniel Mack cval->cmask |= (1 << i); 1987f0b5e634SDaniel Mack cval->channels++; 1988f0b5e634SDaniel Mack } 1989f0b5e634SDaniel Mack } 1990f0b5e634SDaniel Mack 1991f0b5e634SDaniel Mack /* get min/max values */ 1992f0b5e634SDaniel Mack get_min_max(cval, 0); 1993f0b5e634SDaniel Mack 1994f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1995f0b5e634SDaniel Mack if (!kctl) { 19960ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 1997f0b5e634SDaniel Mack kfree(cval); 1998f0b5e634SDaniel Mack return; 1999f0b5e634SDaniel Mack } 2000eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2001f0b5e634SDaniel Mack 2002f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 2003f0b5e634SDaniel Mack if (!len) 2004eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, iterm, kctl->id.name, 20056bc170e4SDaniel Mack sizeof(kctl->id.name), 0); 2006f0b5e634SDaniel Mack if (!len) 2007f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 2008f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 2009f0b5e634SDaniel Mack 20100ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", 20113360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); 20123360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 2013f0b5e634SDaniel Mack } 2014f0b5e634SDaniel Mack 20155a222e84SAndrew Chant static int parse_audio_input_terminal(struct mixer_build *state, int unitid, 20165a222e84SAndrew Chant void *raw_desc) 20175a222e84SAndrew Chant { 20185a222e84SAndrew Chant struct usb_audio_term iterm; 20191d38f5d8SJorge Sanjuan unsigned int control, bmctls, term_id; 20205a222e84SAndrew Chant 20215a222e84SAndrew Chant if (state->mixer->protocol == UAC_VERSION_2) { 20221d38f5d8SJorge Sanjuan struct uac2_input_terminal_descriptor *d_v2 = raw_desc; 20231d38f5d8SJorge Sanjuan control = UAC2_TE_CONNECTOR; 20241d38f5d8SJorge Sanjuan term_id = d_v2->bTerminalID; 20251d38f5d8SJorge Sanjuan bmctls = le16_to_cpu(d_v2->bmControls); 20261d38f5d8SJorge Sanjuan } else if (state->mixer->protocol == UAC_VERSION_3) { 20271d38f5d8SJorge Sanjuan struct uac3_input_terminal_descriptor *d_v3 = raw_desc; 20281d38f5d8SJorge Sanjuan control = UAC3_TE_INSERTION; 20291d38f5d8SJorge Sanjuan term_id = d_v3->bTerminalID; 20301d38f5d8SJorge Sanjuan bmctls = le32_to_cpu(d_v3->bmControls); 20311d38f5d8SJorge Sanjuan } else { 20321d38f5d8SJorge Sanjuan return 0; /* UAC1. No Insertion control */ 20331d38f5d8SJorge Sanjuan } 20341d38f5d8SJorge Sanjuan 20351d38f5d8SJorge Sanjuan check_input_term(state, term_id, &iterm); 20361d38f5d8SJorge Sanjuan 20375a222e84SAndrew Chant /* Check for jack detection. */ 20381d38f5d8SJorge Sanjuan if (uac_v2v3_control_is_readable(bmctls, control)) 20395a222e84SAndrew Chant build_connector_control(state, &iterm, true); 20401d38f5d8SJorge Sanjuan 20415a222e84SAndrew Chant return 0; 20425a222e84SAndrew Chant } 20435a222e84SAndrew Chant 2044f0b5e634SDaniel Mack /* 2045f0b5e634SDaniel Mack * parse a mixer unit 2046f0b5e634SDaniel Mack */ 20476bc170e4SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, 20486bc170e4SDaniel Mack void *raw_desc) 2049f0b5e634SDaniel Mack { 205099fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 2051f0b5e634SDaniel Mack struct usb_audio_term iterm; 2052f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 2053f0b5e634SDaniel Mack int pin, ich, err; 2054f0b5e634SDaniel Mack 20556cfd839aSJorge Sanjuan err = uac_mixer_unit_get_channels(state, desc); 20566cfd839aSJorge Sanjuan if (err < 0) { 20576bc170e4SDaniel Mack usb_audio_err(state->chip, 20586bc170e4SDaniel Mack "invalid MIXER UNIT descriptor %d\n", 20596bc170e4SDaniel Mack unitid); 20606cfd839aSJorge Sanjuan return err; 2061f0b5e634SDaniel Mack } 2062f0b5e634SDaniel Mack 20636cfd839aSJorge Sanjuan num_outs = err; 20646cfd839aSJorge Sanjuan input_pins = desc->bNrInPins; 20656cfd839aSJorge Sanjuan 2066f0b5e634SDaniel Mack num_ins = 0; 2067f0b5e634SDaniel Mack ich = 0; 2068f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 206999fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 2070f0b5e634SDaniel Mack if (err < 0) 2071284a8dd6SMark Hills continue; 2072ea114fc2SClemens Ladisch /* no bmControls field (e.g. Maya44) -> ignore */ 2073ea114fc2SClemens Ladisch if (desc->bLength <= 10 + input_pins) 2074ea114fc2SClemens Ladisch continue; 207599fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 2076f0b5e634SDaniel Mack if (err < 0) 2077f0b5e634SDaniel Mack return err; 2078f0b5e634SDaniel Mack num_ins += iterm.channels; 20796bc170e4SDaniel Mack for (; ich < num_ins; ich++) { 2080f0b5e634SDaniel Mack int och, ich_has_controls = 0; 2081f0b5e634SDaniel Mack 20826bc170e4SDaniel Mack for (och = 0; och < num_outs; och++) { 20836bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, 20846bc170e4SDaniel Mack state->mixer->protocol); 20856bc170e4SDaniel Mack 20866bc170e4SDaniel Mack if (check_matrix_bitmap(c, ich, och, num_outs)) { 2087f0b5e634SDaniel Mack ich_has_controls = 1; 2088f0b5e634SDaniel Mack break; 2089f0b5e634SDaniel Mack } 2090f0b5e634SDaniel Mack } 2091f0b5e634SDaniel Mack if (ich_has_controls) 20926cfd839aSJorge Sanjuan build_mixer_unit_ctl(state, desc, pin, ich, num_outs, 2093f0b5e634SDaniel Mack unitid, &iterm); 2094f0b5e634SDaniel Mack } 2095f0b5e634SDaniel Mack } 2096f0b5e634SDaniel Mack return 0; 2097f0b5e634SDaniel Mack } 2098f0b5e634SDaniel Mack 2099f0b5e634SDaniel Mack /* 2100f0b5e634SDaniel Mack * Processing Unit / Extension Unit 2101f0b5e634SDaniel Mack */ 2102f0b5e634SDaniel Mack 2103f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 21046bc170e4SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, 21056bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2106f0b5e634SDaniel Mack { 2107f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2108f0b5e634SDaniel Mack int err, val; 2109f0b5e634SDaniel Mack 2110f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 21115aeee342STakashi Iwai if (err < 0) { 2112f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 21135aeee342STakashi Iwai return filter_error(cval, err); 2114f0b5e634SDaniel Mack } 2115f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2116f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 2117f0b5e634SDaniel Mack return 0; 2118f0b5e634SDaniel Mack } 2119f0b5e634SDaniel Mack 2120f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 21216bc170e4SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, 21226bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2123f0b5e634SDaniel Mack { 2124f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2125f0b5e634SDaniel Mack int val, oval, err; 2126f0b5e634SDaniel Mack 2127f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 21285aeee342STakashi Iwai if (err < 0) 21295aeee342STakashi Iwai return filter_error(cval, err); 2130f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 2131f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2132f0b5e634SDaniel Mack if (val != oval) { 2133f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2134f0b5e634SDaniel Mack return 1; 2135f0b5e634SDaniel Mack } 2136f0b5e634SDaniel Mack return 0; 2137f0b5e634SDaniel Mack } 2138f0b5e634SDaniel Mack 2139f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 21408fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_procunit_ctl = { 2141f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2142f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2143f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 2144f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 2145f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 2146f0b5e634SDaniel Mack }; 2147f0b5e634SDaniel Mack 2148f0b5e634SDaniel Mack /* 2149f0b5e634SDaniel Mack * predefined data for processing units 2150f0b5e634SDaniel Mack */ 2151f0b5e634SDaniel Mack struct procunit_value_info { 2152f0b5e634SDaniel Mack int control; 2153f0b5e634SDaniel Mack char *suffix; 2154f0b5e634SDaniel Mack int val_type; 2155f0b5e634SDaniel Mack int min_value; 2156f0b5e634SDaniel Mack }; 2157f0b5e634SDaniel Mack 2158f0b5e634SDaniel Mack struct procunit_info { 2159f0b5e634SDaniel Mack int type; 2160f0b5e634SDaniel Mack char *name; 2161f0b5e634SDaniel Mack struct procunit_value_info *values; 2162f0b5e634SDaniel Mack }; 2163f0b5e634SDaniel Mack 2164f0b5e634SDaniel Mack static struct procunit_value_info updown_proc_info[] = { 216565f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 216665f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 2167f0b5e634SDaniel Mack { 0 } 2168f0b5e634SDaniel Mack }; 2169f0b5e634SDaniel Mack static struct procunit_value_info prologic_proc_info[] = { 217065f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 217165f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 2172f0b5e634SDaniel Mack { 0 } 2173f0b5e634SDaniel Mack }; 2174f0b5e634SDaniel Mack static struct procunit_value_info threed_enh_proc_info[] = { 217565f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 217665f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 2177f0b5e634SDaniel Mack { 0 } 2178f0b5e634SDaniel Mack }; 2179f0b5e634SDaniel Mack static struct procunit_value_info reverb_proc_info[] = { 218065f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 218165f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 218265f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 218365f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 2184f0b5e634SDaniel Mack { 0 } 2185f0b5e634SDaniel Mack }; 2186f0b5e634SDaniel Mack static struct procunit_value_info chorus_proc_info[] = { 218765f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 218865f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 218965f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 219065f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 2191f0b5e634SDaniel Mack { 0 } 2192f0b5e634SDaniel Mack }; 2193f0b5e634SDaniel Mack static struct procunit_value_info dcr_proc_info[] = { 219465f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 219565f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 219665f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 219765f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 219865f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 219965f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 2200f0b5e634SDaniel Mack { 0 } 2201f0b5e634SDaniel Mack }; 2202f0b5e634SDaniel Mack 2203f0b5e634SDaniel Mack static struct procunit_info procunits[] = { 220465f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 220565f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 220665f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 220765f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 220865f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 220965f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 2210f0b5e634SDaniel Mack { 0 }, 2211f0b5e634SDaniel Mack }; 2212f0b5e634SDaniel Mack /* 2213f0b5e634SDaniel Mack * predefined data for extension units 2214f0b5e634SDaniel Mack */ 2215f0b5e634SDaniel Mack static struct procunit_value_info clock_rate_xu_info[] = { 2216f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 2217f0b5e634SDaniel Mack { 0 } 2218f0b5e634SDaniel Mack }; 2219f0b5e634SDaniel Mack static struct procunit_value_info clock_source_xu_info[] = { 2220f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 2221f0b5e634SDaniel Mack { 0 } 2222f0b5e634SDaniel Mack }; 2223f0b5e634SDaniel Mack static struct procunit_value_info spdif_format_xu_info[] = { 2224f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 2225f0b5e634SDaniel Mack { 0 } 2226f0b5e634SDaniel Mack }; 2227f0b5e634SDaniel Mack static struct procunit_value_info soft_limit_xu_info[] = { 2228f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 2229f0b5e634SDaniel Mack { 0 } 2230f0b5e634SDaniel Mack }; 2231f0b5e634SDaniel Mack static struct procunit_info extunits[] = { 2232f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 2233f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 2234f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 2235f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 2236f0b5e634SDaniel Mack { 0 } 2237f0b5e634SDaniel Mack }; 22386bc170e4SDaniel Mack 2239f0b5e634SDaniel Mack /* 2240f0b5e634SDaniel Mack * build a processing/extension unit 2241f0b5e634SDaniel Mack */ 22426bc170e4SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, 22436bc170e4SDaniel Mack void *raw_desc, struct procunit_info *list, 22446bc170e4SDaniel Mack char *name) 2245f0b5e634SDaniel Mack { 224699fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 224799fc8645SDaniel Mack int num_ins = desc->bNrInPins; 2248f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2249f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2250f0b5e634SDaniel Mack int i, err, nameid, type, len; 2251f0b5e634SDaniel Mack struct procunit_info *info; 2252f0b5e634SDaniel Mack struct procunit_value_info *valinfo; 2253f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2254f0b5e634SDaniel Mack static struct procunit_value_info default_value_info[] = { 2255f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 2256f0b5e634SDaniel Mack { 0 } 2257f0b5e634SDaniel Mack }; 2258f0b5e634SDaniel Mack static struct procunit_info default_info = { 2259f0b5e634SDaniel Mack 0, NULL, default_value_info 2260f0b5e634SDaniel Mack }; 2261f0b5e634SDaniel Mack 226223caaf19SDaniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 226323caaf19SDaniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 22640ba41d91STakashi Iwai usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); 2265f0b5e634SDaniel Mack return -EINVAL; 2266f0b5e634SDaniel Mack } 2267f0b5e634SDaniel Mack 2268f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 226999fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 2270f0b5e634SDaniel Mack return err; 2271f0b5e634SDaniel Mack } 2272f0b5e634SDaniel Mack 227399fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 2274f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 2275f0b5e634SDaniel Mack if (info->type == type) 2276f0b5e634SDaniel Mack break; 2277f0b5e634SDaniel Mack if (!info || !info->type) 2278f0b5e634SDaniel Mack info = &default_info; 2279f0b5e634SDaniel Mack 2280f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 228123caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 228299fc8645SDaniel Mack 228399fc8645SDaniel Mack if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 2284f0b5e634SDaniel Mack continue; 228517156f23SRuslan Bilovol map = find_map(state->map, unitid, valinfo->control); 2286f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2287f0b5e634SDaniel Mack continue; 2288f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2289a860d95fSDaniel Mack if (!cval) 2290f0b5e634SDaniel Mack return -ENOMEM; 22913360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2292f0b5e634SDaniel Mack cval->control = valinfo->control; 2293f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 2294f0b5e634SDaniel Mack cval->channels = 1; 2295f0b5e634SDaniel Mack 2296f0b5e634SDaniel Mack /* get min/max values */ 229765f25da4SDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 229823caaf19SDaniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 2299f0b5e634SDaniel Mack /* FIXME: hard-coded */ 2300f0b5e634SDaniel Mack cval->min = 1; 230199fc8645SDaniel Mack cval->max = control_spec[0]; 2302f0b5e634SDaniel Mack cval->res = 1; 2303f0b5e634SDaniel Mack cval->initialized = 1; 2304f0b5e634SDaniel Mack } else { 2305f0b5e634SDaniel Mack if (type == USB_XU_CLOCK_RATE) { 23066bc170e4SDaniel Mack /* 23076bc170e4SDaniel Mack * E-Mu USB 0404/0202/TrackerPre/0204 2308f0b5e634SDaniel Mack * samplerate control quirk 2309f0b5e634SDaniel Mack */ 2310f0b5e634SDaniel Mack cval->min = 0; 2311f0b5e634SDaniel Mack cval->max = 5; 2312f0b5e634SDaniel Mack cval->res = 1; 2313f0b5e634SDaniel Mack cval->initialized = 1; 2314f0b5e634SDaniel Mack } else 2315f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 2316f0b5e634SDaniel Mack } 2317f0b5e634SDaniel Mack 2318f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 2319f0b5e634SDaniel Mack if (!kctl) { 2320f0b5e634SDaniel Mack kfree(cval); 2321f0b5e634SDaniel Mack return -ENOMEM; 2322f0b5e634SDaniel Mack } 2323eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2324f0b5e634SDaniel Mack 23256bc170e4SDaniel Mack if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { 2326f0b5e634SDaniel Mack /* nothing */ ; 23276bc170e4SDaniel Mack } else if (info->name) { 2328f0b5e634SDaniel Mack strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 23296bc170e4SDaniel Mack } else { 233023caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 2331f0b5e634SDaniel Mack len = 0; 2332f0b5e634SDaniel Mack if (nameid) 2333eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(state->chip, 2334eccfc1b8SRuslan Bilovol nameid, 23356bc170e4SDaniel Mack kctl->id.name, 23366bc170e4SDaniel Mack sizeof(kctl->id.name)); 2337f0b5e634SDaniel Mack if (!len) 2338f0b5e634SDaniel Mack strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 2339f0b5e634SDaniel Mack } 2340f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 2341f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 2342f0b5e634SDaniel Mack 23430ba41d91STakashi Iwai usb_audio_dbg(state->chip, 23440ba41d91STakashi Iwai "[%d] PU [%s] ch = %d, val = %d/%d\n", 23453360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 23466bc170e4SDaniel Mack cval->min, cval->max); 23476bc170e4SDaniel Mack 23483360b84bSTakashi Iwai err = snd_usb_mixer_add_control(&cval->head, kctl); 23496bc170e4SDaniel Mack if (err < 0) 2350f0b5e634SDaniel Mack return err; 2351f0b5e634SDaniel Mack } 2352f0b5e634SDaniel Mack return 0; 2353f0b5e634SDaniel Mack } 2354f0b5e634SDaniel Mack 23556bc170e4SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, 23566bc170e4SDaniel Mack void *raw_desc) 2357f0b5e634SDaniel Mack { 23586bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 23596bc170e4SDaniel Mack procunits, "Processing Unit"); 2360f0b5e634SDaniel Mack } 2361f0b5e634SDaniel Mack 23626bc170e4SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, 23636bc170e4SDaniel Mack void *raw_desc) 2364f0b5e634SDaniel Mack { 23656bc170e4SDaniel Mack /* 23666bc170e4SDaniel Mack * Note that we parse extension units with processing unit descriptors. 23676bc170e4SDaniel Mack * That's ok as the layout is the same. 23686bc170e4SDaniel Mack */ 23696bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 23706bc170e4SDaniel Mack extunits, "Extension Unit"); 2371f0b5e634SDaniel Mack } 2372f0b5e634SDaniel Mack 2373f0b5e634SDaniel Mack /* 2374f0b5e634SDaniel Mack * Selector Unit 2375f0b5e634SDaniel Mack */ 2376f0b5e634SDaniel Mack 23776bc170e4SDaniel Mack /* 23786bc170e4SDaniel Mack * info callback for selector unit 2379f0b5e634SDaniel Mack * use an enumerator type for routing 2380f0b5e634SDaniel Mack */ 23816bc170e4SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, 23826bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 2383f0b5e634SDaniel Mack { 2384f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 23852a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 2386f0b5e634SDaniel Mack 2387f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 2388f0b5e634SDaniel Mack return -EINVAL; 23892a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 2390f0b5e634SDaniel Mack } 2391f0b5e634SDaniel Mack 2392f0b5e634SDaniel Mack /* get callback for selector unit */ 23936bc170e4SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, 23946bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2395f0b5e634SDaniel Mack { 2396f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2397f0b5e634SDaniel Mack int val, err; 2398f0b5e634SDaniel Mack 239909414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 2400f0b5e634SDaniel Mack if (err < 0) { 2401f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 24025aeee342STakashi Iwai return filter_error(cval, err); 2403f0b5e634SDaniel Mack } 2404f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2405f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 2406f0b5e634SDaniel Mack return 0; 2407f0b5e634SDaniel Mack } 2408f0b5e634SDaniel Mack 2409f0b5e634SDaniel Mack /* put callback for selector unit */ 24106bc170e4SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, 24116bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2412f0b5e634SDaniel Mack { 2413f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2414f0b5e634SDaniel Mack int val, oval, err; 2415f0b5e634SDaniel Mack 241609414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 24175aeee342STakashi Iwai if (err < 0) 24185aeee342STakashi Iwai return filter_error(cval, err); 2419f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 2420f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2421f0b5e634SDaniel Mack if (val != oval) { 242209414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2423f0b5e634SDaniel Mack return 1; 2424f0b5e634SDaniel Mack } 2425f0b5e634SDaniel Mack return 0; 2426f0b5e634SDaniel Mack } 2427f0b5e634SDaniel Mack 2428f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 24298fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_selectunit_ctl = { 2430f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2431f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2432f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 2433f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 2434f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 2435f0b5e634SDaniel Mack }; 2436f0b5e634SDaniel Mack 24376bc170e4SDaniel Mack /* 24386bc170e4SDaniel Mack * private free callback. 2439f0b5e634SDaniel Mack * free both private_data and private_value 2440f0b5e634SDaniel Mack */ 2441f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 2442f0b5e634SDaniel Mack { 2443f0b5e634SDaniel Mack int i, num_ins = 0; 2444f0b5e634SDaniel Mack 2445f0b5e634SDaniel Mack if (kctl->private_data) { 2446f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 2447f0b5e634SDaniel Mack num_ins = cval->max; 2448f0b5e634SDaniel Mack kfree(cval); 2449f0b5e634SDaniel Mack kctl->private_data = NULL; 2450f0b5e634SDaniel Mack } 2451f0b5e634SDaniel Mack if (kctl->private_value) { 2452f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 2453f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 2454f0b5e634SDaniel Mack kfree(itemlist[i]); 2455f0b5e634SDaniel Mack kfree(itemlist); 2456f0b5e634SDaniel Mack kctl->private_value = 0; 2457f0b5e634SDaniel Mack } 2458f0b5e634SDaniel Mack } 2459f0b5e634SDaniel Mack 2460f0b5e634SDaniel Mack /* 2461f0b5e634SDaniel Mack * parse a selector unit 2462f0b5e634SDaniel Mack */ 24636bc170e4SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, 24646bc170e4SDaniel Mack void *raw_desc) 2465f0b5e634SDaniel Mack { 246699fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 2467f0b5e634SDaniel Mack unsigned int i, nameid, len; 2468f0b5e634SDaniel Mack int err; 2469f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2470f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2471f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2472f0b5e634SDaniel Mack char **namelist; 2473f0b5e634SDaniel Mack 2474f658f17bSTakashi Iwai if (desc->bLength < 5 || !desc->bNrInPins || 2475f658f17bSTakashi Iwai desc->bLength < 5 + desc->bNrInPins) { 24760ba41d91STakashi Iwai usb_audio_err(state->chip, 24770ba41d91STakashi Iwai "invalid SELECTOR UNIT descriptor %d\n", unitid); 2478f0b5e634SDaniel Mack return -EINVAL; 2479f0b5e634SDaniel Mack } 2480f0b5e634SDaniel Mack 248199fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 248299fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 2483f0b5e634SDaniel Mack return err; 2484f0b5e634SDaniel Mack } 2485f0b5e634SDaniel Mack 248699fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 2487f0b5e634SDaniel Mack return 0; 2488f0b5e634SDaniel Mack 248917156f23SRuslan Bilovol map = find_map(state->map, unitid, 0); 2490f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2491f0b5e634SDaniel Mack return 0; 2492f0b5e634SDaniel Mack 2493f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2494a860d95fSDaniel Mack if (!cval) 2495f0b5e634SDaniel Mack return -ENOMEM; 24963360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2497f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 2498f0b5e634SDaniel Mack cval->channels = 1; 2499f0b5e634SDaniel Mack cval->min = 1; 250099fc8645SDaniel Mack cval->max = desc->bNrInPins; 2501f0b5e634SDaniel Mack cval->res = 1; 2502f0b5e634SDaniel Mack cval->initialized = 1; 2503f0b5e634SDaniel Mack 2504a358a0efSJohan Rastén if (state->mixer->protocol == UAC_VERSION_1) 250509414207SDaniel Mack cval->control = 0; 2506a358a0efSJohan Rastén else /* UAC_VERSION_2 */ 2507a358a0efSJohan Rastén cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? 2508a358a0efSJohan Rastén UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; 250909414207SDaniel Mack 251099fc8645SDaniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 2511f0b5e634SDaniel Mack if (!namelist) { 2512f0b5e634SDaniel Mack kfree(cval); 2513f0b5e634SDaniel Mack return -ENOMEM; 2514f0b5e634SDaniel Mack } 2515f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 251699fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2517f0b5e634SDaniel Mack struct usb_audio_term iterm; 2518f0b5e634SDaniel Mack len = 0; 2519f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 2520f0b5e634SDaniel Mack if (!namelist[i]) { 2521f0b5e634SDaniel Mack while (i--) 2522f0b5e634SDaniel Mack kfree(namelist[i]); 2523f0b5e634SDaniel Mack kfree(namelist); 2524f0b5e634SDaniel Mack kfree(cval); 2525f0b5e634SDaniel Mack return -ENOMEM; 2526f0b5e634SDaniel Mack } 2527f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 2528f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 252999fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 2530eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, &iterm, namelist[i], 2531eccfc1b8SRuslan Bilovol MAX_ITEM_NAME_LEN, 0); 2532f0b5e634SDaniel Mack if (! len) 2533af831eefSMasanari Iida sprintf(namelist[i], "Input %u", i); 2534f0b5e634SDaniel Mack } 2535f0b5e634SDaniel Mack 2536f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 2537f0b5e634SDaniel Mack if (! kctl) { 25380ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 2539f0b5e634SDaniel Mack kfree(namelist); 2540f0b5e634SDaniel Mack kfree(cval); 2541f0b5e634SDaniel Mack return -ENOMEM; 2542f0b5e634SDaniel Mack } 2543f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 2544f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 2545f0b5e634SDaniel Mack 25465a15f289STakashi Iwai /* check the static mapping table at first */ 2547f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 25485a15f289STakashi Iwai if (!len) { 25495a15f289STakashi Iwai /* no mapping ? */ 25505a15f289STakashi Iwai /* if iSelector is given, use it */ 25515a15f289STakashi Iwai nameid = uac_selector_unit_iSelector(desc); 25525a15f289STakashi Iwai if (nameid) 2553eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(state->chip, nameid, 25545a15f289STakashi Iwai kctl->id.name, 25556bc170e4SDaniel Mack sizeof(kctl->id.name)); 25565a15f289STakashi Iwai /* ... or pick up the terminal name at next */ 25575a15f289STakashi Iwai if (!len) 2558eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, &state->oterm, 2559f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 25605a15f289STakashi Iwai /* ... or use the fixed string "USB" as the last resort */ 2561f0b5e634SDaniel Mack if (!len) 2562f0b5e634SDaniel Mack strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 2563f0b5e634SDaniel Mack 25645a15f289STakashi Iwai /* and add the proper suffix */ 256509414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 256609414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 256709414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 2568f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 2569f0b5e634SDaniel Mack else 2570f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 2571f0b5e634SDaniel Mack } 2572f0b5e634SDaniel Mack 25730ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", 25743360b84bSTakashi Iwai cval->head.id, kctl->id.name, desc->bNrInPins); 25753360b84bSTakashi Iwai return snd_usb_mixer_add_control(&cval->head, kctl); 2576f0b5e634SDaniel Mack } 2577f0b5e634SDaniel Mack 2578f0b5e634SDaniel Mack /* 2579f0b5e634SDaniel Mack * parse an audio unit recursively 2580f0b5e634SDaniel Mack */ 2581f0b5e634SDaniel Mack 2582f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 2583f0b5e634SDaniel Mack { 2584f0b5e634SDaniel Mack unsigned char *p1; 25859a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 2586f0b5e634SDaniel Mack 2587f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 2588f0b5e634SDaniel Mack return 0; /* the unit already visited */ 2589f0b5e634SDaniel Mack 2590f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 2591f0b5e634SDaniel Mack if (!p1) { 25920ba41d91STakashi Iwai usb_audio_err(state->chip, "unit %d not found!\n", unitid); 2593f0b5e634SDaniel Mack return -EINVAL; 2594f0b5e634SDaniel Mack } 2595f0b5e634SDaniel Mack 25969a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) { 2597f0b5e634SDaniel Mack switch (p1[2]) { 2598f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 25995a222e84SAndrew Chant return parse_audio_input_terminal(state, unitid, p1); 2600f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 2601f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 2602cddaafb9SDaniel Mack case UAC2_CLOCK_SOURCE: 2603cddaafb9SDaniel Mack return parse_clock_source_unit(state, unitid, p1); 2604f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 260509414207SDaniel Mack case UAC2_CLOCK_SELECTOR: 2606f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 2607f0b5e634SDaniel Mack case UAC_FEATURE_UNIT: 2608f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 260969da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 261023caaf19SDaniel Mack /* UAC2_EFFECT_UNIT has the same value */ 26119a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) 2612f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 261323caaf19SDaniel Mack else 261423caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 261569da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 261623caaf19SDaniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 26179a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) 2618f0b5e634SDaniel Mack return parse_audio_extension_unit(state, unitid, p1); 261923caaf19SDaniel Mack else /* UAC_VERSION_2 */ 262023caaf19SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 262161ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: 262261ac5130STorstein Hegge return parse_audio_extension_unit(state, unitid, p1); 2623f0b5e634SDaniel Mack default: 26240ba41d91STakashi Iwai usb_audio_err(state->chip, 26250ba41d91STakashi Iwai "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 2626f0b5e634SDaniel Mack return -EINVAL; 2627f0b5e634SDaniel Mack } 26289a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 26299a2fe9b8SRuslan Bilovol switch (p1[2]) { 26309a2fe9b8SRuslan Bilovol case UAC_INPUT_TERMINAL: 26311d38f5d8SJorge Sanjuan return parse_audio_input_terminal(state, unitid, p1); 26329a2fe9b8SRuslan Bilovol case UAC3_MIXER_UNIT: 26339a2fe9b8SRuslan Bilovol return parse_audio_mixer_unit(state, unitid, p1); 26349a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SOURCE: 26359a2fe9b8SRuslan Bilovol return parse_clock_source_unit(state, unitid, p1); 26369a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SELECTOR: 26379a2fe9b8SRuslan Bilovol return parse_audio_selector_unit(state, unitid, p1); 26389a2fe9b8SRuslan Bilovol case UAC3_FEATURE_UNIT: 26399a2fe9b8SRuslan Bilovol return parse_audio_feature_unit(state, unitid, p1); 26409a2fe9b8SRuslan Bilovol case UAC3_EFFECT_UNIT: 26419a2fe9b8SRuslan Bilovol return 0; /* FIXME - effect units not implemented yet */ 26429a2fe9b8SRuslan Bilovol case UAC3_PROCESSING_UNIT: 26439a2fe9b8SRuslan Bilovol return parse_audio_processing_unit(state, unitid, p1); 26449a2fe9b8SRuslan Bilovol case UAC3_EXTENSION_UNIT: 26459a2fe9b8SRuslan Bilovol return parse_audio_extension_unit(state, unitid, p1); 26469a2fe9b8SRuslan Bilovol default: 26479a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 26489a2fe9b8SRuslan Bilovol "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 26499a2fe9b8SRuslan Bilovol return -EINVAL; 26509a2fe9b8SRuslan Bilovol } 26519a2fe9b8SRuslan Bilovol } 2652f0b5e634SDaniel Mack } 2653f0b5e634SDaniel Mack 2654f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 2655f0b5e634SDaniel Mack { 2656124751d5STakashi Iwai /* kill pending URBs */ 2657124751d5STakashi Iwai snd_usb_mixer_disconnect(mixer); 2658124751d5STakashi Iwai 2659f0b5e634SDaniel Mack kfree(mixer->id_elems); 2660f0b5e634SDaniel Mack if (mixer->urb) { 2661f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 2662f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 2663f0b5e634SDaniel Mack } 2664f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 2665f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 2666f0b5e634SDaniel Mack kfree(mixer); 2667f0b5e634SDaniel Mack } 2668f0b5e634SDaniel Mack 2669f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 2670f0b5e634SDaniel Mack { 2671f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 2672f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2673f0b5e634SDaniel Mack return 0; 2674f0b5e634SDaniel Mack } 2675f0b5e634SDaniel Mack 267617156f23SRuslan Bilovol /* UAC3 predefined channels configuration */ 267717156f23SRuslan Bilovol struct uac3_badd_profile { 267817156f23SRuslan Bilovol int subclass; 267917156f23SRuslan Bilovol const char *name; 268017156f23SRuslan Bilovol int c_chmask; /* capture channels mask */ 268117156f23SRuslan Bilovol int p_chmask; /* playback channels mask */ 268217156f23SRuslan Bilovol int st_chmask; /* side tone mixing channel mask */ 268317156f23SRuslan Bilovol }; 268417156f23SRuslan Bilovol 268517156f23SRuslan Bilovol static struct uac3_badd_profile uac3_badd_profiles[] = { 268617156f23SRuslan Bilovol { 268717156f23SRuslan Bilovol /* 268817156f23SRuslan Bilovol * BAIF, BAOF or combination of both 268917156f23SRuslan Bilovol * IN: Mono or Stereo cfg, Mono alt possible 269017156f23SRuslan Bilovol * OUT: Mono or Stereo cfg, Mono alt possible 269117156f23SRuslan Bilovol */ 269217156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO, 269317156f23SRuslan Bilovol .name = "GENERIC IO", 269417156f23SRuslan Bilovol .c_chmask = -1, /* dynamic channels */ 269517156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 269617156f23SRuslan Bilovol }, 269717156f23SRuslan Bilovol { 269817156f23SRuslan Bilovol /* BAOF; Stereo only cfg, Mono alt possible */ 269917156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE, 270017156f23SRuslan Bilovol .name = "HEADPHONE", 270117156f23SRuslan Bilovol .p_chmask = 3, 270217156f23SRuslan Bilovol }, 270317156f23SRuslan Bilovol { 270417156f23SRuslan Bilovol /* BAOF; Mono or Stereo cfg, Mono alt possible */ 270517156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER, 270617156f23SRuslan Bilovol .name = "SPEAKER", 270717156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 270817156f23SRuslan Bilovol }, 270917156f23SRuslan Bilovol { 271017156f23SRuslan Bilovol /* BAIF; Mono or Stereo cfg, Mono alt possible */ 271117156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE, 271217156f23SRuslan Bilovol .name = "MICROPHONE", 271317156f23SRuslan Bilovol .c_chmask = -1, /* dynamic channels */ 271417156f23SRuslan Bilovol }, 271517156f23SRuslan Bilovol { 271617156f23SRuslan Bilovol /* 271717156f23SRuslan Bilovol * BAIOF topology 271817156f23SRuslan Bilovol * IN: Mono only 271917156f23SRuslan Bilovol * OUT: Mono or Stereo cfg, Mono alt possible 272017156f23SRuslan Bilovol */ 272117156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET, 272217156f23SRuslan Bilovol .name = "HEADSET", 272317156f23SRuslan Bilovol .c_chmask = 1, 272417156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 272517156f23SRuslan Bilovol .st_chmask = 1, 272617156f23SRuslan Bilovol }, 272717156f23SRuslan Bilovol { 272817156f23SRuslan Bilovol /* BAIOF; IN: Mono only; OUT: Stereo only, Mono alt possible */ 272917156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER, 273017156f23SRuslan Bilovol .name = "HEADSET ADAPTER", 273117156f23SRuslan Bilovol .c_chmask = 1, 273217156f23SRuslan Bilovol .p_chmask = 3, 273317156f23SRuslan Bilovol .st_chmask = 1, 273417156f23SRuslan Bilovol }, 273517156f23SRuslan Bilovol { 273617156f23SRuslan Bilovol /* BAIF + BAOF; IN: Mono only; OUT: Mono only */ 273717156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, 273817156f23SRuslan Bilovol .name = "SPEAKERPHONE", 273917156f23SRuslan Bilovol .c_chmask = 1, 274017156f23SRuslan Bilovol .p_chmask = 1, 274117156f23SRuslan Bilovol }, 274217156f23SRuslan Bilovol { 0 } /* terminator */ 274317156f23SRuslan Bilovol }; 274417156f23SRuslan Bilovol 274517156f23SRuslan Bilovol static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer, 274617156f23SRuslan Bilovol struct uac3_badd_profile *f, 274717156f23SRuslan Bilovol int c_chmask, int p_chmask) 274817156f23SRuslan Bilovol { 274917156f23SRuslan Bilovol /* 275017156f23SRuslan Bilovol * If both playback/capture channels are dynamic, make sure 275117156f23SRuslan Bilovol * at least one channel is present 275217156f23SRuslan Bilovol */ 275317156f23SRuslan Bilovol if (f->c_chmask < 0 && f->p_chmask < 0) { 275417156f23SRuslan Bilovol if (!c_chmask && !p_chmask) { 275517156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s: no channels?", 275617156f23SRuslan Bilovol f->name); 275717156f23SRuslan Bilovol return false; 275817156f23SRuslan Bilovol } 275917156f23SRuslan Bilovol return true; 276017156f23SRuslan Bilovol } 276117156f23SRuslan Bilovol 276217156f23SRuslan Bilovol if ((f->c_chmask < 0 && !c_chmask) || 276317156f23SRuslan Bilovol (f->c_chmask >= 0 && f->c_chmask != c_chmask)) { 276417156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch", 276517156f23SRuslan Bilovol f->name); 276617156f23SRuslan Bilovol return false; 276717156f23SRuslan Bilovol } 276817156f23SRuslan Bilovol if ((f->p_chmask < 0 && !p_chmask) || 276917156f23SRuslan Bilovol (f->p_chmask >= 0 && f->p_chmask != p_chmask)) { 277017156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch", 277117156f23SRuslan Bilovol f->name); 277217156f23SRuslan Bilovol return false; 277317156f23SRuslan Bilovol } 277417156f23SRuslan Bilovol return true; 277517156f23SRuslan Bilovol } 277617156f23SRuslan Bilovol 277717156f23SRuslan Bilovol /* 277817156f23SRuslan Bilovol * create mixer controls for UAC3 BADD profiles 277917156f23SRuslan Bilovol * 278017156f23SRuslan Bilovol * UAC3 BADD device doesn't contain CS descriptors thus we will guess everything 278117156f23SRuslan Bilovol * 278217156f23SRuslan Bilovol * BADD device may contain Mixer Unit, which doesn't have any controls, skip it 278317156f23SRuslan Bilovol */ 278417156f23SRuslan Bilovol static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer, 278517156f23SRuslan Bilovol int ctrlif) 278617156f23SRuslan Bilovol { 278717156f23SRuslan Bilovol struct usb_device *dev = mixer->chip->dev; 278817156f23SRuslan Bilovol struct usb_interface_assoc_descriptor *assoc; 278917156f23SRuslan Bilovol int badd_profile = mixer->chip->badd_profile; 279017156f23SRuslan Bilovol struct uac3_badd_profile *f; 279117156f23SRuslan Bilovol const struct usbmix_ctl_map *map; 279217156f23SRuslan Bilovol int p_chmask = 0, c_chmask = 0, st_chmask = 0; 279317156f23SRuslan Bilovol int i; 279417156f23SRuslan Bilovol 279517156f23SRuslan Bilovol assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc; 279617156f23SRuslan Bilovol 279717156f23SRuslan Bilovol /* Detect BADD capture/playback channels from AS EP descriptors */ 279817156f23SRuslan Bilovol for (i = 0; i < assoc->bInterfaceCount; i++) { 279917156f23SRuslan Bilovol int intf = assoc->bFirstInterface + i; 280017156f23SRuslan Bilovol 280117156f23SRuslan Bilovol struct usb_interface *iface; 280217156f23SRuslan Bilovol struct usb_host_interface *alts; 280317156f23SRuslan Bilovol struct usb_interface_descriptor *altsd; 280417156f23SRuslan Bilovol unsigned int maxpacksize; 280517156f23SRuslan Bilovol char dir_in; 280617156f23SRuslan Bilovol int chmask, num; 280717156f23SRuslan Bilovol 280817156f23SRuslan Bilovol if (intf == ctrlif) 280917156f23SRuslan Bilovol continue; 281017156f23SRuslan Bilovol 281117156f23SRuslan Bilovol iface = usb_ifnum_to_if(dev, intf); 281217156f23SRuslan Bilovol num = iface->num_altsetting; 281317156f23SRuslan Bilovol 281417156f23SRuslan Bilovol if (num < 2) 281517156f23SRuslan Bilovol return -EINVAL; 281617156f23SRuslan Bilovol 281717156f23SRuslan Bilovol /* 281817156f23SRuslan Bilovol * The number of Channels in an AudioStreaming interface 281917156f23SRuslan Bilovol * and the audio sample bit resolution (16 bits or 24 282017156f23SRuslan Bilovol * bits) can be derived from the wMaxPacketSize field in 282117156f23SRuslan Bilovol * the Standard AS Audio Data Endpoint descriptor in 282217156f23SRuslan Bilovol * Alternate Setting 1 282317156f23SRuslan Bilovol */ 282417156f23SRuslan Bilovol alts = &iface->altsetting[1]; 282517156f23SRuslan Bilovol altsd = get_iface_desc(alts); 282617156f23SRuslan Bilovol 282717156f23SRuslan Bilovol if (altsd->bNumEndpoints < 1) 282817156f23SRuslan Bilovol return -EINVAL; 282917156f23SRuslan Bilovol 283017156f23SRuslan Bilovol /* check direction */ 283117156f23SRuslan Bilovol dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); 283217156f23SRuslan Bilovol maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); 283317156f23SRuslan Bilovol 283417156f23SRuslan Bilovol switch (maxpacksize) { 283517156f23SRuslan Bilovol default: 283617156f23SRuslan Bilovol usb_audio_err(mixer->chip, 283717156f23SRuslan Bilovol "incorrect wMaxPacketSize 0x%x for BADD profile\n", 283817156f23SRuslan Bilovol maxpacksize); 283917156f23SRuslan Bilovol return -EINVAL; 284017156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: 284117156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: 284217156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: 284317156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: 284417156f23SRuslan Bilovol chmask = 1; 284517156f23SRuslan Bilovol break; 284617156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: 284717156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: 284817156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: 284917156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: 285017156f23SRuslan Bilovol chmask = 3; 285117156f23SRuslan Bilovol break; 285217156f23SRuslan Bilovol } 285317156f23SRuslan Bilovol 285417156f23SRuslan Bilovol if (dir_in) 285517156f23SRuslan Bilovol c_chmask = chmask; 285617156f23SRuslan Bilovol else 285717156f23SRuslan Bilovol p_chmask = chmask; 285817156f23SRuslan Bilovol } 285917156f23SRuslan Bilovol 286017156f23SRuslan Bilovol usb_audio_dbg(mixer->chip, 286117156f23SRuslan Bilovol "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n", 286217156f23SRuslan Bilovol badd_profile, c_chmask, p_chmask); 286317156f23SRuslan Bilovol 286417156f23SRuslan Bilovol /* check the mapping table */ 286517156f23SRuslan Bilovol for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) { 286617156f23SRuslan Bilovol if (map->id == badd_profile) 286717156f23SRuslan Bilovol break; 286817156f23SRuslan Bilovol } 286917156f23SRuslan Bilovol 287017156f23SRuslan Bilovol if (!map->id) 287117156f23SRuslan Bilovol return -EINVAL; 287217156f23SRuslan Bilovol 287317156f23SRuslan Bilovol for (f = uac3_badd_profiles; f->name; f++) { 287417156f23SRuslan Bilovol if (badd_profile == f->subclass) 287517156f23SRuslan Bilovol break; 287617156f23SRuslan Bilovol } 287717156f23SRuslan Bilovol if (!f->name) 287817156f23SRuslan Bilovol return -EINVAL; 287917156f23SRuslan Bilovol if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask)) 288017156f23SRuslan Bilovol return -EINVAL; 288117156f23SRuslan Bilovol st_chmask = f->st_chmask; 288217156f23SRuslan Bilovol 288317156f23SRuslan Bilovol /* Playback */ 288417156f23SRuslan Bilovol if (p_chmask) { 288517156f23SRuslan Bilovol /* Master channel, always writable */ 288617156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 288717156f23SRuslan Bilovol UAC3_BADD_FU_ID2, map->map); 288817156f23SRuslan Bilovol /* Mono/Stereo volume channels, always writable */ 288917156f23SRuslan Bilovol build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME, 289017156f23SRuslan Bilovol UAC3_BADD_FU_ID2, map->map); 289117156f23SRuslan Bilovol } 289217156f23SRuslan Bilovol 289317156f23SRuslan Bilovol /* Capture */ 289417156f23SRuslan Bilovol if (c_chmask) { 289517156f23SRuslan Bilovol /* Master channel, always writable */ 289617156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 289717156f23SRuslan Bilovol UAC3_BADD_FU_ID5, map->map); 289817156f23SRuslan Bilovol /* Mono/Stereo volume channels, always writable */ 289917156f23SRuslan Bilovol build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME, 290017156f23SRuslan Bilovol UAC3_BADD_FU_ID5, map->map); 290117156f23SRuslan Bilovol } 290217156f23SRuslan Bilovol 290317156f23SRuslan Bilovol /* Side tone-mixing */ 290417156f23SRuslan Bilovol if (st_chmask) { 290517156f23SRuslan Bilovol /* Master channel, always writable */ 290617156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 290717156f23SRuslan Bilovol UAC3_BADD_FU_ID7, map->map); 290817156f23SRuslan Bilovol /* Mono volume channel, always writable */ 290917156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME, 291017156f23SRuslan Bilovol UAC3_BADD_FU_ID7, map->map); 291117156f23SRuslan Bilovol } 291217156f23SRuslan Bilovol 291317156f23SRuslan Bilovol return 0; 291417156f23SRuslan Bilovol } 291517156f23SRuslan Bilovol 2916f0b5e634SDaniel Mack /* 2917f0b5e634SDaniel Mack * create mixer controls 2918f0b5e634SDaniel Mack * 2919f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 2920f0b5e634SDaniel Mack */ 2921f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 2922f0b5e634SDaniel Mack { 2923f0b5e634SDaniel Mack struct mixer_build state; 2924f0b5e634SDaniel Mack int err; 2925f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 292623caaf19SDaniel Mack void *p; 2927f0b5e634SDaniel Mack 2928f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 2929f0b5e634SDaniel Mack state.chip = mixer->chip; 2930f0b5e634SDaniel Mack state.mixer = mixer; 29311faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 29321faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 2933f0b5e634SDaniel Mack 2934f0b5e634SDaniel Mack /* check the mapping table */ 2935f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 2936f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 2937f0b5e634SDaniel Mack state.map = map->map; 2938f0b5e634SDaniel Mack state.selector_map = map->selector_map; 2939f0b5e634SDaniel Mack mixer->ignore_ctl_error = map->ignore_ctl_error; 2940f0b5e634SDaniel Mack break; 2941f0b5e634SDaniel Mack } 2942f0b5e634SDaniel Mack } 2943f0b5e634SDaniel Mack 294423caaf19SDaniel Mack p = NULL; 29456bc170e4SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, 29466bc170e4SDaniel Mack mixer->hostif->extralen, 29471faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 294823caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 294969da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 295023caaf19SDaniel Mack 295123caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 295223caaf19SDaniel Mack continue; /* invalid descriptor? */ 29536bc170e4SDaniel Mack /* mark terminal ID as visited */ 29546bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 295523caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 295623caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 295723caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 295823caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 295983ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 296023caaf19SDaniel Mack return err; 29619a2fe9b8SRuslan Bilovol } else if (mixer->protocol == UAC_VERSION_2) { 296223caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 296323caaf19SDaniel Mack 296423caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 2965f0b5e634SDaniel Mack continue; /* invalid descriptor? */ 29666bc170e4SDaniel Mack /* mark terminal ID as visited */ 29676bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 2968f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 2969f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 2970f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 2971f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 297283ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 2973f0b5e634SDaniel Mack return err; 297409414207SDaniel Mack 29756bc170e4SDaniel Mack /* 29766bc170e4SDaniel Mack * For UAC2, use the same approach to also add the 29776bc170e4SDaniel Mack * clock selectors 29786bc170e4SDaniel Mack */ 297909414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 298083ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 298109414207SDaniel Mack return err; 29825a222e84SAndrew Chant 29832b54f785STakashi Iwai if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls), 29845a222e84SAndrew Chant UAC2_TE_CONNECTOR)) { 29855a222e84SAndrew Chant build_connector_control(&state, &state.oterm, 29865a222e84SAndrew Chant false); 29875a222e84SAndrew Chant } 29889a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 29899a2fe9b8SRuslan Bilovol struct uac3_output_terminal_descriptor *desc = p; 29909a2fe9b8SRuslan Bilovol 29919a2fe9b8SRuslan Bilovol if (desc->bLength < sizeof(*desc)) 29929a2fe9b8SRuslan Bilovol continue; /* invalid descriptor? */ 29939a2fe9b8SRuslan Bilovol /* mark terminal ID as visited */ 29949a2fe9b8SRuslan Bilovol set_bit(desc->bTerminalID, state.unitbitmap); 29959a2fe9b8SRuslan Bilovol state.oterm.id = desc->bTerminalID; 29969a2fe9b8SRuslan Bilovol state.oterm.type = le16_to_cpu(desc->wTerminalType); 29979a2fe9b8SRuslan Bilovol state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr); 29989a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bSourceID); 29999a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 30009a2fe9b8SRuslan Bilovol return err; 30019a2fe9b8SRuslan Bilovol 30029a2fe9b8SRuslan Bilovol /* 30039a2fe9b8SRuslan Bilovol * For UAC3, use the same approach to also add the 30049a2fe9b8SRuslan Bilovol * clock selectors 30059a2fe9b8SRuslan Bilovol */ 30069a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bCSourceID); 30079a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 30089a2fe9b8SRuslan Bilovol return err; 30091d38f5d8SJorge Sanjuan 30101d38f5d8SJorge Sanjuan if (uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls), 30111d38f5d8SJorge Sanjuan UAC3_TE_INSERTION)) { 30121d38f5d8SJorge Sanjuan build_connector_control(&state, &state.oterm, 30131d38f5d8SJorge Sanjuan false); 30141d38f5d8SJorge Sanjuan } 3015f0b5e634SDaniel Mack } 301623caaf19SDaniel Mack } 301723caaf19SDaniel Mack 3018f0b5e634SDaniel Mack return 0; 3019f0b5e634SDaniel Mack } 3020f0b5e634SDaniel Mack 3021f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 3022f0b5e634SDaniel Mack { 30233360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3024f0b5e634SDaniel Mack 30258c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 3026b2500b58SJulian Scheel struct usb_mixer_elem_info *info = 30278c558076STakashi Iwai mixer_elem_list_to_info(list); 3028b2500b58SJulian Scheel /* invalidate cache, so the value is read from the device */ 3029b2500b58SJulian Scheel info->cached = 0; 3030f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 30313360b84bSTakashi Iwai &list->kctl->id); 3032f0b5e634SDaniel Mack } 3033b2500b58SJulian Scheel } 3034f0b5e634SDaniel Mack 3035f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 30363360b84bSTakashi Iwai struct usb_mixer_elem_list *list) 3037f0b5e634SDaniel Mack { 30388c558076STakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 3039f0b5e634SDaniel Mack static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 3040f0b5e634SDaniel Mack "S8", "U8", "S16", "U16"}; 3041f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 30423360b84bSTakashi Iwai "channels=%i, type=\"%s\"\n", cval->head.id, 3043f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 3044f0b5e634SDaniel Mack val_types[cval->val_type]); 3045f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 3046f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 3047f0b5e634SDaniel Mack } 3048f0b5e634SDaniel Mack 3049f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 3050f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 3051f0b5e634SDaniel Mack { 3052f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 3053f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 30543360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3055f0b5e634SDaniel Mack int unitid; 3056f0b5e634SDaniel Mack 3057f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 3058f0b5e634SDaniel Mack snd_iprintf(buffer, 3059f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 30603d8d4dcfSDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 3061f0b5e634SDaniel Mack mixer->ignore_ctl_error); 3062f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 3063f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 30648c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 30653360b84bSTakashi Iwai snd_iprintf(buffer, " Unit: %i\n", list->id); 30663360b84bSTakashi Iwai if (list->kctl) 30673360b84bSTakashi Iwai snd_iprintf(buffer, 30683360b84bSTakashi Iwai " Control: name=\"%s\", index=%i\n", 30693360b84bSTakashi Iwai list->kctl->id.name, 30703360b84bSTakashi Iwai list->kctl->id.index); 30713360b84bSTakashi Iwai if (list->dump) 30723360b84bSTakashi Iwai list->dump(buffer, list); 30733360b84bSTakashi Iwai } 3074f0b5e634SDaniel Mack } 3075f0b5e634SDaniel Mack } 3076f0b5e634SDaniel Mack } 3077f0b5e634SDaniel Mack 3078e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 3079e213e9cfSDaniel Mack int attribute, int value, int index) 3080e213e9cfSDaniel Mack { 30813360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3082e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 3083e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 3084e213e9cfSDaniel Mack __u8 channel = value & 0xff; 3085191227d9SDaniel Mack unsigned int count = 0; 3086e213e9cfSDaniel Mack 3087e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 30880ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 30890ba41d91STakashi Iwai "%s(): bogus channel number %d\n", 3090e213e9cfSDaniel Mack __func__, channel); 3091e213e9cfSDaniel Mack return; 3092e213e9cfSDaniel Mack } 3093e213e9cfSDaniel Mack 30948c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) 3095191227d9SDaniel Mack count++; 3096191227d9SDaniel Mack 3097191227d9SDaniel Mack if (count == 0) 3098191227d9SDaniel Mack return; 3099191227d9SDaniel Mack 31008c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 31013360b84bSTakashi Iwai struct usb_mixer_elem_info *info; 31023360b84bSTakashi Iwai 31033360b84bSTakashi Iwai if (!list->kctl) 31043360b84bSTakashi Iwai continue; 31053360b84bSTakashi Iwai 31068c558076STakashi Iwai info = mixer_elem_list_to_info(list); 3107191227d9SDaniel Mack if (count > 1 && info->control != control) 3108e213e9cfSDaniel Mack continue; 3109e213e9cfSDaniel Mack 3110e213e9cfSDaniel Mack switch (attribute) { 3111e213e9cfSDaniel Mack case UAC2_CS_CUR: 3112e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 3113e213e9cfSDaniel Mack if (channel) 3114e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 3115e213e9cfSDaniel Mack else /* master channel */ 3116e213e9cfSDaniel Mack info->cached = 0; 3117e213e9cfSDaniel Mack 3118e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 31193360b84bSTakashi Iwai &info->head.kctl->id); 3120e213e9cfSDaniel Mack break; 3121e213e9cfSDaniel Mack 3122e213e9cfSDaniel Mack case UAC2_CS_RANGE: 3123e213e9cfSDaniel Mack /* TODO */ 3124e213e9cfSDaniel Mack break; 3125e213e9cfSDaniel Mack 3126e213e9cfSDaniel Mack case UAC2_CS_MEM: 3127e213e9cfSDaniel Mack /* TODO */ 3128e213e9cfSDaniel Mack break; 3129e213e9cfSDaniel Mack 3130e213e9cfSDaniel Mack default: 31310ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 31320ba41d91STakashi Iwai "unknown attribute %d in interrupt\n", 3133e213e9cfSDaniel Mack attribute); 3134e213e9cfSDaniel Mack break; 3135e213e9cfSDaniel Mack } /* switch */ 3136e213e9cfSDaniel Mack } 3137e213e9cfSDaniel Mack } 3138e213e9cfSDaniel Mack 3139e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 3140f0b5e634SDaniel Mack { 3141f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 3142e213e9cfSDaniel Mack int len = urb->actual_length; 3143edf7de31SOliver Neukum int ustatus = urb->status; 3144f0b5e634SDaniel Mack 3145edf7de31SOliver Neukum if (ustatus != 0) 3146e213e9cfSDaniel Mack goto requeue; 3147f0b5e634SDaniel Mack 3148e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 3149e213e9cfSDaniel Mack struct uac1_status_word *status; 3150e213e9cfSDaniel Mack 3151e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 3152e213e9cfSDaniel Mack len >= sizeof(*status); 3153e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 31540ba41d91STakashi Iwai dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", 3155e213e9cfSDaniel Mack status->bStatusType, 3156e213e9cfSDaniel Mack status->bOriginator); 3157e213e9cfSDaniel Mack 3158f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 3159e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 3160e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 3161f0b5e634SDaniel Mack continue; 3162e213e9cfSDaniel Mack 3163e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 3164e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 3165f0b5e634SDaniel Mack else 3166e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 3167e213e9cfSDaniel Mack } 3168e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 3169e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 3170e213e9cfSDaniel Mack 3171e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 3172e213e9cfSDaniel Mack len >= sizeof(*msg); 3173e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 3174e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 3175e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 3176e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 3177e213e9cfSDaniel Mack continue; 3178e213e9cfSDaniel Mack 3179e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 3180e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 3181e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 3182f0b5e634SDaniel Mack } 3183f0b5e634SDaniel Mack } 3184e213e9cfSDaniel Mack 3185e213e9cfSDaniel Mack requeue: 31866bc170e4SDaniel Mack if (ustatus != -ENOENT && 31876bc170e4SDaniel Mack ustatus != -ECONNRESET && 31886bc170e4SDaniel Mack ustatus != -ESHUTDOWN) { 3189f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 3190f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 3191f0b5e634SDaniel Mack } 3192f0b5e634SDaniel Mack } 3193f0b5e634SDaniel Mack 3194f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 3195f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 3196f0b5e634SDaniel Mack { 3197f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 3198f0b5e634SDaniel Mack void *transfer_buffer; 3199f0b5e634SDaniel Mack int buffer_length; 3200f0b5e634SDaniel Mack unsigned int epnum; 3201f0b5e634SDaniel Mack 3202f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 32031faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 3204f0b5e634SDaniel Mack return 0; 32051faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 3206f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 3207f0b5e634SDaniel Mack return 0; 3208f0b5e634SDaniel Mack 3209f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 3210f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 3211f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 3212f0b5e634SDaniel Mack if (!transfer_buffer) 3213f0b5e634SDaniel Mack return -ENOMEM; 3214f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 3215f0b5e634SDaniel Mack if (!mixer->urb) { 3216f0b5e634SDaniel Mack kfree(transfer_buffer); 3217f0b5e634SDaniel Mack return -ENOMEM; 3218f0b5e634SDaniel Mack } 3219f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 3220f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 3221f0b5e634SDaniel Mack transfer_buffer, buffer_length, 3222e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 3223f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 3224f0b5e634SDaniel Mack return 0; 3225f0b5e634SDaniel Mack } 3226f0b5e634SDaniel Mack 32274120fbedSTakashi Iwai static int keep_iface_ctl_get(struct snd_kcontrol *kcontrol, 32284120fbedSTakashi Iwai struct snd_ctl_elem_value *ucontrol) 32294120fbedSTakashi Iwai { 32304120fbedSTakashi Iwai struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); 32314120fbedSTakashi Iwai 32324120fbedSTakashi Iwai ucontrol->value.integer.value[0] = mixer->chip->keep_iface; 32334120fbedSTakashi Iwai return 0; 32344120fbedSTakashi Iwai } 32354120fbedSTakashi Iwai 32364120fbedSTakashi Iwai static int keep_iface_ctl_put(struct snd_kcontrol *kcontrol, 32374120fbedSTakashi Iwai struct snd_ctl_elem_value *ucontrol) 32384120fbedSTakashi Iwai { 32394120fbedSTakashi Iwai struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); 32404120fbedSTakashi Iwai bool keep_iface = !!ucontrol->value.integer.value[0]; 32414120fbedSTakashi Iwai 32424120fbedSTakashi Iwai if (mixer->chip->keep_iface == keep_iface) 32434120fbedSTakashi Iwai return 0; 32444120fbedSTakashi Iwai mixer->chip->keep_iface = keep_iface; 32454120fbedSTakashi Iwai return 1; 32464120fbedSTakashi Iwai } 32474120fbedSTakashi Iwai 32484120fbedSTakashi Iwai static const struct snd_kcontrol_new keep_iface_ctl = { 32494120fbedSTakashi Iwai .iface = SNDRV_CTL_ELEM_IFACE_CARD, 32504120fbedSTakashi Iwai .name = "Keep Interface", 32514120fbedSTakashi Iwai .info = snd_ctl_boolean_mono_info, 32524120fbedSTakashi Iwai .get = keep_iface_ctl_get, 32534120fbedSTakashi Iwai .put = keep_iface_ctl_put, 32544120fbedSTakashi Iwai }; 32554120fbedSTakashi Iwai 32564120fbedSTakashi Iwai static int create_keep_iface_ctl(struct usb_mixer_interface *mixer) 32574120fbedSTakashi Iwai { 32584120fbedSTakashi Iwai struct snd_kcontrol *kctl = snd_ctl_new1(&keep_iface_ctl, mixer); 32594120fbedSTakashi Iwai 32604120fbedSTakashi Iwai /* need only one control per card */ 32614120fbedSTakashi Iwai if (snd_ctl_find_id(mixer->chip->card, &kctl->id)) { 32624120fbedSTakashi Iwai snd_ctl_free_one(kctl); 32634120fbedSTakashi Iwai return 0; 32644120fbedSTakashi Iwai } 32654120fbedSTakashi Iwai 32664120fbedSTakashi Iwai return snd_ctl_add(mixer->chip->card, kctl); 32674120fbedSTakashi Iwai } 32684120fbedSTakashi Iwai 3269f0b5e634SDaniel Mack int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 3270f0b5e634SDaniel Mack int ignore_error) 3271f0b5e634SDaniel Mack { 3272f0b5e634SDaniel Mack static struct snd_device_ops dev_ops = { 3273f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 3274f0b5e634SDaniel Mack }; 3275f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 3276f0b5e634SDaniel Mack struct snd_info_entry *entry; 327723caaf19SDaniel Mack int err; 3278f0b5e634SDaniel Mack 3279f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 3280f0b5e634SDaniel Mack 3281f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 3282f0b5e634SDaniel Mack if (!mixer) 3283f0b5e634SDaniel Mack return -ENOMEM; 3284f0b5e634SDaniel Mack mixer->chip = chip; 3285f0b5e634SDaniel Mack mixer->ignore_ctl_error = ignore_error; 3286f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 3287f0b5e634SDaniel Mack GFP_KERNEL); 3288f0b5e634SDaniel Mack if (!mixer->id_elems) { 3289f0b5e634SDaniel Mack kfree(mixer); 3290f0b5e634SDaniel Mack return -ENOMEM; 3291f0b5e634SDaniel Mack } 3292f0b5e634SDaniel Mack 32931faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 32941faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 3295a2acad82SClemens Ladisch case UAC_VERSION_1: 3296a2acad82SClemens Ladisch default: 3297a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 3298a2acad82SClemens Ladisch break; 3299a2acad82SClemens Ladisch case UAC_VERSION_2: 3300a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 3301a2acad82SClemens Ladisch break; 33029a2fe9b8SRuslan Bilovol case UAC_VERSION_3: 33039a2fe9b8SRuslan Bilovol mixer->protocol = UAC_VERSION_3; 33049a2fe9b8SRuslan Bilovol break; 3305a2acad82SClemens Ladisch } 3306f0b5e634SDaniel Mack 330717156f23SRuslan Bilovol if (mixer->protocol == UAC_VERSION_3 && 330817156f23SRuslan Bilovol chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { 330917156f23SRuslan Bilovol if ((err = snd_usb_mixer_controls_badd(mixer, ctrlif)) < 0) 3310f0b5e634SDaniel Mack goto _error; 331117156f23SRuslan Bilovol } else if ((err = snd_usb_mixer_controls(mixer)) < 0 || 331217156f23SRuslan Bilovol (err = snd_usb_mixer_status_create(mixer)) < 0) { 331317156f23SRuslan Bilovol goto _error; 331417156f23SRuslan Bilovol } 33154120fbedSTakashi Iwai err = create_keep_iface_ctl(mixer); 33164120fbedSTakashi Iwai if (err < 0) 33174120fbedSTakashi Iwai goto _error; 3318f0b5e634SDaniel Mack 3319f0b5e634SDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 3320f0b5e634SDaniel Mack 33219cbb2808STakashi Iwai err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); 3322f0b5e634SDaniel Mack if (err < 0) 3323f0b5e634SDaniel Mack goto _error; 3324f0b5e634SDaniel Mack 3325f0b5e634SDaniel Mack if (list_empty(&chip->mixer_list) && 3326f0b5e634SDaniel Mack !snd_card_proc_new(chip->card, "usbmixer", &entry)) 3327f0b5e634SDaniel Mack snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 3328f0b5e634SDaniel Mack 3329f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 3330f0b5e634SDaniel Mack return 0; 3331f0b5e634SDaniel Mack 3332f0b5e634SDaniel Mack _error: 3333f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 3334f0b5e634SDaniel Mack return err; 3335f0b5e634SDaniel Mack } 3336f0b5e634SDaniel Mack 3337a6cece9dSTakashi Iwai void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) 3338f0b5e634SDaniel Mack { 3339124751d5STakashi Iwai if (mixer->disconnected) 3340124751d5STakashi Iwai return; 3341124751d5STakashi Iwai if (mixer->urb) 3342f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 3343124751d5STakashi Iwai if (mixer->rc_urb) 3344f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 3345124751d5STakashi Iwai mixer->disconnected = true; 3346f0b5e634SDaniel Mack } 3347400362f1STakashi Iwai 3348400362f1STakashi Iwai #ifdef CONFIG_PM 3349400362f1STakashi Iwai /* stop any bus activity of a mixer */ 3350400362f1STakashi Iwai static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 3351400362f1STakashi Iwai { 3352400362f1STakashi Iwai usb_kill_urb(mixer->urb); 3353400362f1STakashi Iwai usb_kill_urb(mixer->rc_urb); 3354400362f1STakashi Iwai } 3355400362f1STakashi Iwai 3356400362f1STakashi Iwai static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 3357400362f1STakashi Iwai { 3358400362f1STakashi Iwai int err; 3359400362f1STakashi Iwai 3360400362f1STakashi Iwai if (mixer->urb) { 3361400362f1STakashi Iwai err = usb_submit_urb(mixer->urb, GFP_NOIO); 3362400362f1STakashi Iwai if (err < 0) 3363400362f1STakashi Iwai return err; 3364400362f1STakashi Iwai } 3365400362f1STakashi Iwai 3366400362f1STakashi Iwai return 0; 3367400362f1STakashi Iwai } 3368400362f1STakashi Iwai 3369400362f1STakashi Iwai int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) 3370400362f1STakashi Iwai { 3371400362f1STakashi Iwai snd_usb_mixer_inactivate(mixer); 3372400362f1STakashi Iwai return 0; 3373400362f1STakashi Iwai } 3374400362f1STakashi Iwai 33753360b84bSTakashi Iwai static int restore_mixer_value(struct usb_mixer_elem_list *list) 3376400362f1STakashi Iwai { 33778c558076STakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 3378400362f1STakashi Iwai int c, err, idx; 3379400362f1STakashi Iwai 3380400362f1STakashi Iwai if (cval->cmask) { 3381400362f1STakashi Iwai idx = 0; 3382400362f1STakashi Iwai for (c = 0; c < MAX_CHANNELS; c++) { 3383400362f1STakashi Iwai if (!(cval->cmask & (1 << c))) 3384400362f1STakashi Iwai continue; 33856aa6925cSYao-Wen Mao if (cval->cached & (1 << (c + 1))) { 3386eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, c + 1, idx, 3387400362f1STakashi Iwai cval->cache_val[idx]); 3388400362f1STakashi Iwai if (err < 0) 3389400362f1STakashi Iwai return err; 3390400362f1STakashi Iwai } 3391400362f1STakashi Iwai idx++; 3392400362f1STakashi Iwai } 3393400362f1STakashi Iwai } else { 3394400362f1STakashi Iwai /* master */ 3395400362f1STakashi Iwai if (cval->cached) { 3396eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); 3397400362f1STakashi Iwai if (err < 0) 3398400362f1STakashi Iwai return err; 3399400362f1STakashi Iwai } 3400400362f1STakashi Iwai } 3401400362f1STakashi Iwai 3402400362f1STakashi Iwai return 0; 3403400362f1STakashi Iwai } 3404400362f1STakashi Iwai 3405400362f1STakashi Iwai int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) 3406400362f1STakashi Iwai { 34073360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3408400362f1STakashi Iwai int id, err; 3409400362f1STakashi Iwai 3410400362f1STakashi Iwai if (reset_resume) { 3411400362f1STakashi Iwai /* restore cached mixer values */ 3412400362f1STakashi Iwai for (id = 0; id < MAX_ID_ELEMS; id++) { 34138c558076STakashi Iwai for_each_mixer_elem(list, mixer, id) { 34143360b84bSTakashi Iwai if (list->resume) { 34153360b84bSTakashi Iwai err = list->resume(list); 3416400362f1STakashi Iwai if (err < 0) 3417400362f1STakashi Iwai return err; 3418400362f1STakashi Iwai } 3419400362f1STakashi Iwai } 3420400362f1STakashi Iwai } 34213360b84bSTakashi Iwai } 3422400362f1STakashi Iwai 3423964af639STakashi Iwai snd_usb_mixer_resume_quirk(mixer); 3424964af639STakashi Iwai 3425400362f1STakashi Iwai return snd_usb_mixer_activate(mixer); 3426400362f1STakashi Iwai } 3427400362f1STakashi Iwai #endif 34283360b84bSTakashi Iwai 34293360b84bSTakashi Iwai void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, 34303360b84bSTakashi Iwai struct usb_mixer_interface *mixer, 34313360b84bSTakashi Iwai int unitid) 34323360b84bSTakashi Iwai { 34333360b84bSTakashi Iwai list->mixer = mixer; 34343360b84bSTakashi Iwai list->id = unitid; 34353360b84bSTakashi Iwai list->dump = snd_usb_mixer_dump_cval; 34363360b84bSTakashi Iwai #ifdef CONFIG_PM 34373360b84bSTakashi Iwai list->resume = restore_mixer_value; 34383360b84bSTakashi Iwai #endif 34393360b84bSTakashi Iwai } 3440