11a59d1b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2f0b5e634SDaniel Mack /* 3f0b5e634SDaniel Mack * (Tentative) USB Audio Driver for ALSA 4f0b5e634SDaniel Mack * 5f0b5e634SDaniel Mack * Mixer control part 6f0b5e634SDaniel Mack * 7f0b5e634SDaniel Mack * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 8f0b5e634SDaniel Mack * 9f0b5e634SDaniel Mack * Many codes borrowed from audio.c by 10f0b5e634SDaniel Mack * Alan Cox (alan@lxorguk.ukuu.org.uk) 11f0b5e634SDaniel Mack * Thomas Sailer (sailer@ife.ee.ethz.ch) 12f0b5e634SDaniel Mack */ 13f0b5e634SDaniel Mack 14157a57b6SDaniel Mack /* 15157a57b6SDaniel Mack * TODOs, for both the mixer and the streaming interfaces: 16157a57b6SDaniel Mack * 17157a57b6SDaniel Mack * - support for UAC2 effect units 18157a57b6SDaniel Mack * - support for graphical equalizers 19157a57b6SDaniel Mack * - RANGE and MEM set commands (UAC2) 20157a57b6SDaniel Mack * - RANGE and MEM interrupt dispatchers (UAC2) 21157a57b6SDaniel Mack * - audio channel clustering (UAC2) 22157a57b6SDaniel Mack * - audio sample rate converter units (UAC2) 23157a57b6SDaniel Mack * - proper handling of clock multipliers (UAC2) 24157a57b6SDaniel Mack * - dispatch clock change notifications (UAC2) 25157a57b6SDaniel Mack * - stop PCM streams which use a clock that became invalid 26157a57b6SDaniel Mack * - stop PCM streams which use a clock selector that has changed 27157a57b6SDaniel Mack * - parse available sample rates again when clock sources changed 28157a57b6SDaniel Mack */ 29157a57b6SDaniel Mack 30f0b5e634SDaniel Mack #include <linux/bitops.h> 31f0b5e634SDaniel Mack #include <linux/init.h> 32f0b5e634SDaniel Mack #include <linux/list.h> 33cddaafb9SDaniel Mack #include <linux/log2.h> 34f0b5e634SDaniel Mack #include <linux/slab.h> 35f0b5e634SDaniel Mack #include <linux/string.h> 36f0b5e634SDaniel Mack #include <linux/usb.h> 37f0b5e634SDaniel Mack #include <linux/usb/audio.h> 3823caaf19SDaniel Mack #include <linux/usb/audio-v2.h> 399a2fe9b8SRuslan Bilovol #include <linux/usb/audio-v3.h> 40f0b5e634SDaniel Mack 41f0b5e634SDaniel Mack #include <sound/core.h> 42f0b5e634SDaniel Mack #include <sound/control.h> 43f0b5e634SDaniel Mack #include <sound/hwdep.h> 44f0b5e634SDaniel Mack #include <sound/info.h> 45f0b5e634SDaniel Mack #include <sound/tlv.h> 46f0b5e634SDaniel Mack 47f0b5e634SDaniel Mack #include "usbaudio.h" 48f0b5e634SDaniel Mack #include "mixer.h" 49f0b5e634SDaniel Mack #include "helper.h" 50f0b5e634SDaniel Mack #include "mixer_quirks.h" 5188a8516aSOliver Neukum #include "power.h" 52f0b5e634SDaniel Mack 53f0b5e634SDaniel Mack #define MAX_ID_ELEMS 256 54f0b5e634SDaniel Mack 55f0b5e634SDaniel Mack struct usb_audio_term { 56f0b5e634SDaniel Mack int id; 57f0b5e634SDaniel Mack int type; 58f0b5e634SDaniel Mack int channels; 59f0b5e634SDaniel Mack unsigned int chconfig; 60f0b5e634SDaniel Mack int name; 61f0b5e634SDaniel Mack }; 62f0b5e634SDaniel Mack 63f0b5e634SDaniel Mack struct usbmix_name_map; 64f0b5e634SDaniel Mack 65f0b5e634SDaniel Mack struct mixer_build { 66f0b5e634SDaniel Mack struct snd_usb_audio *chip; 67f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 68f0b5e634SDaniel Mack unsigned char *buffer; 69f0b5e634SDaniel Mack unsigned int buflen; 70f0b5e634SDaniel Mack DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 7119bce474SHui Peng DECLARE_BITMAP(termbitmap, MAX_ID_ELEMS); 72f0b5e634SDaniel Mack struct usb_audio_term oterm; 73f0b5e634SDaniel Mack const struct usbmix_name_map *map; 74f0b5e634SDaniel Mack const struct usbmix_selector_map *selector_map; 75f0b5e634SDaniel Mack }; 76f0b5e634SDaniel Mack 771cdfa9f3SJoseph Teichman /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ 78f0b5e634SDaniel Mack enum { 79f0b5e634SDaniel Mack USB_XU_CLOCK_RATE = 0xe301, 80f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE = 0xe302, 81f0b5e634SDaniel Mack USB_XU_DIGITAL_IO_STATUS = 0xe303, 82f0b5e634SDaniel Mack USB_XU_DEVICE_OPTIONS = 0xe304, 83f0b5e634SDaniel Mack USB_XU_DIRECT_MONITORING = 0xe305, 84f0b5e634SDaniel Mack USB_XU_METERING = 0xe306 85f0b5e634SDaniel Mack }; 86f0b5e634SDaniel Mack enum { 87f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 88f0b5e634SDaniel Mack USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 89f0b5e634SDaniel Mack USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 90f0b5e634SDaniel Mack USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 91f0b5e634SDaniel Mack }; 92f0b5e634SDaniel Mack 93f0b5e634SDaniel Mack /* 94f0b5e634SDaniel Mack * manual mapping of mixer names 95f0b5e634SDaniel Mack * if the mixer topology is too complicated and the parsed names are 96f0b5e634SDaniel Mack * ambiguous, add the entries in usbmixer_maps.c. 97f0b5e634SDaniel Mack */ 98f0b5e634SDaniel Mack #include "mixer_maps.c" 99f0b5e634SDaniel Mack 100f0b5e634SDaniel Mack static const struct usbmix_name_map * 10117156f23SRuslan Bilovol find_map(const struct usbmix_name_map *p, int unitid, int control) 102f0b5e634SDaniel Mack { 103f0b5e634SDaniel Mack if (!p) 104f0b5e634SDaniel Mack return NULL; 105f0b5e634SDaniel Mack 10617156f23SRuslan Bilovol for (; p->id; p++) { 107f0b5e634SDaniel Mack if (p->id == unitid && 108f0b5e634SDaniel Mack (!control || !p->control || control == p->control)) 109f0b5e634SDaniel Mack return p; 110f0b5e634SDaniel Mack } 111f0b5e634SDaniel Mack return NULL; 112f0b5e634SDaniel Mack } 113f0b5e634SDaniel Mack 114f0b5e634SDaniel Mack /* get the mapped name if the unit matches */ 115f0b5e634SDaniel Mack static int 116f0b5e634SDaniel Mack check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 117f0b5e634SDaniel Mack { 118e8afdfdcSTakashi Iwai int len; 119e8afdfdcSTakashi Iwai 120f0b5e634SDaniel Mack if (!p || !p->name) 121f0b5e634SDaniel Mack return 0; 122f0b5e634SDaniel Mack 123f0b5e634SDaniel Mack buflen--; 124e8afdfdcSTakashi Iwai len = strscpy(buf, p->name, buflen); 125e8afdfdcSTakashi Iwai return len < 0 ? buflen : len; 126f0b5e634SDaniel Mack } 127f0b5e634SDaniel Mack 1285aeee342STakashi Iwai /* ignore the error value if ignore_ctl_error flag is set */ 1295aeee342STakashi Iwai #define filter_error(cval, err) \ 1303360b84bSTakashi Iwai ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) 1315aeee342STakashi Iwai 132f0b5e634SDaniel Mack /* check whether the control should be ignored */ 133f0b5e634SDaniel Mack static inline int 134f0b5e634SDaniel Mack check_ignored_ctl(const struct usbmix_name_map *p) 135f0b5e634SDaniel Mack { 136f0b5e634SDaniel Mack if (!p || p->name || p->dB) 137f0b5e634SDaniel Mack return 0; 138f0b5e634SDaniel Mack return 1; 139f0b5e634SDaniel Mack } 140f0b5e634SDaniel Mack 141f0b5e634SDaniel Mack /* dB mapping */ 142f0b5e634SDaniel Mack static inline void check_mapped_dB(const struct usbmix_name_map *p, 143f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 144f0b5e634SDaniel Mack { 145f0b5e634SDaniel Mack if (p && p->dB) { 146f0b5e634SDaniel Mack cval->dBmin = p->dB->min; 147f0b5e634SDaniel Mack cval->dBmax = p->dB->max; 14885b741c1STakashi Iwai cval->min_mute = p->dB->min_mute; 14938b65190STakashi Iwai cval->initialized = 1; 150f0b5e634SDaniel Mack } 151f0b5e634SDaniel Mack } 152f0b5e634SDaniel Mack 153f0b5e634SDaniel Mack /* get the mapped selector source name */ 154f0b5e634SDaniel Mack static int check_mapped_selector_name(struct mixer_build *state, int unitid, 155f0b5e634SDaniel Mack int index, char *buf, int buflen) 156f0b5e634SDaniel Mack { 157f0b5e634SDaniel Mack const struct usbmix_selector_map *p; 158e8afdfdcSTakashi Iwai int len; 159f0b5e634SDaniel Mack 160f0b5e634SDaniel Mack if (!state->selector_map) 161f0b5e634SDaniel Mack return 0; 162f0b5e634SDaniel Mack for (p = state->selector_map; p->id; p++) { 163e8afdfdcSTakashi Iwai if (p->id == unitid && index < p->count) { 164e8afdfdcSTakashi Iwai len = strscpy(buf, p->names[index], buflen); 165e8afdfdcSTakashi Iwai return len < 0 ? buflen : len; 166e8afdfdcSTakashi Iwai } 167f0b5e634SDaniel Mack } 168f0b5e634SDaniel Mack return 0; 169f0b5e634SDaniel Mack } 170f0b5e634SDaniel Mack 171f0b5e634SDaniel Mack /* 172f0b5e634SDaniel Mack * find an audio control unit with the given unit id 173f0b5e634SDaniel Mack */ 1746bc170e4SDaniel Mack static void *find_audio_control_unit(struct mixer_build *state, 1756bc170e4SDaniel Mack unsigned char unit) 176f0b5e634SDaniel Mack { 17767e1daa0SDaniel Mack /* we just parse the header */ 17867e1daa0SDaniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 179f0b5e634SDaniel Mack 18067e1daa0SDaniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 181f0b5e634SDaniel Mack USB_DT_CS_INTERFACE)) != NULL) { 18267e1daa0SDaniel Mack if (hdr->bLength >= 4 && 18367e1daa0SDaniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 1849a2fe9b8SRuslan Bilovol hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER && 18567e1daa0SDaniel Mack hdr->bUnitID == unit) 18667e1daa0SDaniel Mack return hdr; 187f0b5e634SDaniel Mack } 18867e1daa0SDaniel Mack 189f0b5e634SDaniel Mack return NULL; 190f0b5e634SDaniel Mack } 191f0b5e634SDaniel Mack 192f0b5e634SDaniel Mack /* 193f0b5e634SDaniel Mack * copy a string with the given id 194f0b5e634SDaniel Mack */ 195eccfc1b8SRuslan Bilovol static int snd_usb_copy_string_desc(struct snd_usb_audio *chip, 1966bc170e4SDaniel Mack int index, char *buf, int maxlen) 197f0b5e634SDaniel Mack { 198eccfc1b8SRuslan Bilovol int len = usb_string(chip->dev, index, buf, maxlen - 1); 199251552a2SJaejoong Kim 200251552a2SJaejoong Kim if (len < 0) 201251552a2SJaejoong Kim return 0; 202251552a2SJaejoong Kim 203f0b5e634SDaniel Mack buf[len] = 0; 204f0b5e634SDaniel Mack return len; 205f0b5e634SDaniel Mack } 206f0b5e634SDaniel Mack 207f0b5e634SDaniel Mack /* 208f0b5e634SDaniel Mack * convert from the byte/word on usb descriptor to the zero-based integer 209f0b5e634SDaniel Mack */ 210f0b5e634SDaniel Mack static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 211f0b5e634SDaniel Mack { 212f0b5e634SDaniel Mack switch (cval->val_type) { 213f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 214f0b5e634SDaniel Mack return !!val; 215f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 216f0b5e634SDaniel Mack return !val; 217f0b5e634SDaniel Mack case USB_MIXER_U8: 218f0b5e634SDaniel Mack val &= 0xff; 219f0b5e634SDaniel Mack break; 220f0b5e634SDaniel Mack case USB_MIXER_S8: 221f0b5e634SDaniel Mack val &= 0xff; 222f0b5e634SDaniel Mack if (val >= 0x80) 223f0b5e634SDaniel Mack val -= 0x100; 224f0b5e634SDaniel Mack break; 225f0b5e634SDaniel Mack case USB_MIXER_U16: 226f0b5e634SDaniel Mack val &= 0xffff; 227f0b5e634SDaniel Mack break; 228f0b5e634SDaniel Mack case USB_MIXER_S16: 229f0b5e634SDaniel Mack val &= 0xffff; 230f0b5e634SDaniel Mack if (val >= 0x8000) 231f0b5e634SDaniel Mack val -= 0x10000; 232f0b5e634SDaniel Mack break; 233f0b5e634SDaniel Mack } 234f0b5e634SDaniel Mack return val; 235f0b5e634SDaniel Mack } 236f0b5e634SDaniel Mack 237f0b5e634SDaniel Mack /* 238f0b5e634SDaniel Mack * convert from the zero-based int to the byte/word for usb descriptor 239f0b5e634SDaniel Mack */ 240f0b5e634SDaniel Mack static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 241f0b5e634SDaniel Mack { 242f0b5e634SDaniel Mack switch (cval->val_type) { 243f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 244f0b5e634SDaniel Mack return !!val; 245f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 246f0b5e634SDaniel Mack return !val; 247f0b5e634SDaniel Mack case USB_MIXER_S8: 248f0b5e634SDaniel Mack case USB_MIXER_U8: 249f0b5e634SDaniel Mack return val & 0xff; 250f0b5e634SDaniel Mack case USB_MIXER_S16: 251f0b5e634SDaniel Mack case USB_MIXER_U16: 252f0b5e634SDaniel Mack return val & 0xffff; 253f0b5e634SDaniel Mack } 254f0b5e634SDaniel Mack return 0; /* not reached */ 255f0b5e634SDaniel Mack } 256f0b5e634SDaniel Mack 257f0b5e634SDaniel Mack static int get_relative_value(struct usb_mixer_elem_info *cval, int val) 258f0b5e634SDaniel Mack { 259f0b5e634SDaniel Mack if (!cval->res) 260f0b5e634SDaniel Mack cval->res = 1; 261f0b5e634SDaniel Mack if (val < cval->min) 262f0b5e634SDaniel Mack return 0; 263f0b5e634SDaniel Mack else if (val >= cval->max) 264e4d8aef2SLars-Peter Clausen return DIV_ROUND_UP(cval->max - cval->min, cval->res); 265f0b5e634SDaniel Mack else 266f0b5e634SDaniel Mack return (val - cval->min) / cval->res; 267f0b5e634SDaniel Mack } 268f0b5e634SDaniel Mack 269f0b5e634SDaniel Mack static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 270f0b5e634SDaniel Mack { 271f0b5e634SDaniel Mack if (val < 0) 272f0b5e634SDaniel Mack return cval->min; 273f0b5e634SDaniel Mack if (!cval->res) 274f0b5e634SDaniel Mack cval->res = 1; 275f0b5e634SDaniel Mack val *= cval->res; 276f0b5e634SDaniel Mack val += cval->min; 277f0b5e634SDaniel Mack if (val > cval->max) 278f0b5e634SDaniel Mack return cval->max; 279f0b5e634SDaniel Mack return val; 280f0b5e634SDaniel Mack } 281f0b5e634SDaniel Mack 282bc18e31cSJulian Scheel static int uac2_ctl_value_size(int val_type) 283bc18e31cSJulian Scheel { 284bc18e31cSJulian Scheel switch (val_type) { 285bc18e31cSJulian Scheel case USB_MIXER_S32: 286bc18e31cSJulian Scheel case USB_MIXER_U32: 287bc18e31cSJulian Scheel return 4; 288bc18e31cSJulian Scheel case USB_MIXER_S16: 289bc18e31cSJulian Scheel case USB_MIXER_U16: 290bc18e31cSJulian Scheel return 2; 291bc18e31cSJulian Scheel default: 292bc18e31cSJulian Scheel return 1; 293bc18e31cSJulian Scheel } 294bc18e31cSJulian Scheel return 0; /* unreachable */ 295bc18e31cSJulian Scheel } 296bc18e31cSJulian Scheel 297f0b5e634SDaniel Mack 298f0b5e634SDaniel Mack /* 299f0b5e634SDaniel Mack * retrieve a mixer value 300f0b5e634SDaniel Mack */ 301f0b5e634SDaniel Mack 3020aef31b7SChris Wulff static inline int mixer_ctrl_intf(struct usb_mixer_interface *mixer) 3030aef31b7SChris Wulff { 3040aef31b7SChris Wulff return get_iface_desc(mixer->hostif)->bInterfaceNumber; 3050aef31b7SChris Wulff } 3060aef31b7SChris Wulff 3076bc170e4SDaniel Mack static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, 3086bc170e4SDaniel Mack int validx, int *value_ret) 309f0b5e634SDaniel Mack { 3103360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 311f0b5e634SDaniel Mack unsigned char buf[2]; 312f0b5e634SDaniel Mack int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 313f0b5e634SDaniel Mack int timeout = 10; 314978520b7STakashi Iwai int idx = 0, err; 315f0b5e634SDaniel Mack 31647ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 31788a8516aSOliver Neukum if (err < 0) 31888a8516aSOliver Neukum return -EIO; 3196bc170e4SDaniel Mack 320f0b5e634SDaniel Mack while (timeout-- > 0) { 3210aef31b7SChris Wulff idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); 3225a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 323f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3245a9a8ecaSStephen Barber validx, idx, buf, val_len); 3255a9a8ecaSStephen Barber if (err >= val_len) { 326f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 327978520b7STakashi Iwai err = 0; 328978520b7STakashi Iwai goto out; 3295a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 3305a9a8ecaSStephen Barber goto out; 331f0b5e634SDaniel Mack } 332f0b5e634SDaniel Mack } 3330ba41d91STakashi Iwai usb_audio_dbg(chip, 3340ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 335978520b7STakashi Iwai request, validx, idx, cval->val_type); 336978520b7STakashi Iwai err = -EINVAL; 337978520b7STakashi Iwai 338978520b7STakashi Iwai out: 33947ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 340978520b7STakashi Iwai return err; 341f0b5e634SDaniel Mack } 342f0b5e634SDaniel Mack 3436bc170e4SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 3446bc170e4SDaniel Mack int validx, int *value_ret) 34523caaf19SDaniel Mack { 3463360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 347447cae58SKirill Marinushkin /* enough space for one range */ 348447cae58SKirill Marinushkin unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; 34923caaf19SDaniel Mack unsigned char *val; 350447cae58SKirill Marinushkin int idx = 0, ret, val_size, size; 35123caaf19SDaniel Mack __u8 bRequest; 35223caaf19SDaniel Mack 353447cae58SKirill Marinushkin val_size = uac2_ctl_value_size(cval->val_type); 354447cae58SKirill Marinushkin 355e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 356e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 357447cae58SKirill Marinushkin size = val_size; 358e8bdb6bbSDaniel Mack } else { 359e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 360447cae58SKirill Marinushkin size = sizeof(__u16) + 3 * val_size; 361e8bdb6bbSDaniel Mack } 362e8bdb6bbSDaniel Mack 363e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 36423caaf19SDaniel Mack 365509975c7STakashi Iwai if (snd_usb_lock_shutdown(chip)) 366509975c7STakashi Iwai return -EIO; 36788a8516aSOliver Neukum 3680aef31b7SChris Wulff idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); 3693d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 37023caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 371978520b7STakashi Iwai validx, idx, buf, size); 37247ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 37323caaf19SDaniel Mack 37423caaf19SDaniel Mack if (ret < 0) { 375ac9b019dSTakashi Iwai usb_audio_dbg(chip, 3760ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 377978520b7STakashi Iwai request, validx, idx, cval->val_type); 37823caaf19SDaniel Mack return ret; 37923caaf19SDaniel Mack } 38023caaf19SDaniel Mack 381e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 382e8bdb6bbSDaniel Mack 38323caaf19SDaniel Mack switch (request) { 38423caaf19SDaniel Mack case UAC_GET_CUR: 38523caaf19SDaniel Mack val = buf; 38623caaf19SDaniel Mack break; 38723caaf19SDaniel Mack case UAC_GET_MIN: 38823caaf19SDaniel Mack val = buf + sizeof(__u16); 38923caaf19SDaniel Mack break; 39023caaf19SDaniel Mack case UAC_GET_MAX: 391447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size; 39223caaf19SDaniel Mack break; 39323caaf19SDaniel Mack case UAC_GET_RES: 394447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size * 2; 39523caaf19SDaniel Mack break; 39623caaf19SDaniel Mack default: 39723caaf19SDaniel Mack return -EINVAL; 39823caaf19SDaniel Mack } 39923caaf19SDaniel Mack 400447cae58SKirill Marinushkin *value_ret = convert_signed_value(cval, 401447cae58SKirill Marinushkin snd_usb_combine_bytes(val, val_size)); 40223caaf19SDaniel Mack 40323caaf19SDaniel Mack return 0; 40423caaf19SDaniel Mack } 40523caaf19SDaniel Mack 4066bc170e4SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, 4076bc170e4SDaniel Mack int validx, int *value_ret) 40823caaf19SDaniel Mack { 4099f814105SEldad Zack validx += cval->idx_off; 4109f814105SEldad Zack 4113360b84bSTakashi Iwai return (cval->head.mixer->protocol == UAC_VERSION_1) ? 41223caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 41323caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 41423caaf19SDaniel Mack } 41523caaf19SDaniel Mack 4166bc170e4SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, 4176bc170e4SDaniel Mack int validx, int *value) 418f0b5e634SDaniel Mack { 419f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 420f0b5e634SDaniel Mack } 421f0b5e634SDaniel Mack 422f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 423f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 424f0b5e634SDaniel Mack int channel, int *value) 425f0b5e634SDaniel Mack { 4266bc170e4SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, 4276bc170e4SDaniel Mack (cval->control << 8) | channel, 4286bc170e4SDaniel Mack value); 429f0b5e634SDaniel Mack } 430f0b5e634SDaniel Mack 431eef90451SChris J Arges int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, 432f0b5e634SDaniel Mack int channel, int index, int *value) 433f0b5e634SDaniel Mack { 434f0b5e634SDaniel Mack int err; 435f0b5e634SDaniel Mack 436f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 437f0b5e634SDaniel Mack *value = cval->cache_val[index]; 438f0b5e634SDaniel Mack return 0; 439f0b5e634SDaniel Mack } 440f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 441f0b5e634SDaniel Mack if (err < 0) { 4423360b84bSTakashi Iwai if (!cval->head.mixer->ignore_ctl_error) 4433360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 4440ba41d91STakashi Iwai "cannot get current value for control %d ch %d: err = %d\n", 445f0b5e634SDaniel Mack cval->control, channel, err); 446f0b5e634SDaniel Mack return err; 447f0b5e634SDaniel Mack } 448f0b5e634SDaniel Mack cval->cached |= 1 << channel; 449f0b5e634SDaniel Mack cval->cache_val[index] = *value; 450f0b5e634SDaniel Mack return 0; 451f0b5e634SDaniel Mack } 452f0b5e634SDaniel Mack 453f0b5e634SDaniel Mack /* 454f0b5e634SDaniel Mack * set a mixer value 455f0b5e634SDaniel Mack */ 456f0b5e634SDaniel Mack 457f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 458f0b5e634SDaniel Mack int request, int validx, int value_set) 459f0b5e634SDaniel Mack { 4603360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 461bc18e31cSJulian Scheel unsigned char buf[4]; 462978520b7STakashi Iwai int idx = 0, val_len, err, timeout = 10; 46323caaf19SDaniel Mack 4649f814105SEldad Zack validx += cval->idx_off; 4659f814105SEldad Zack 4669a2fe9b8SRuslan Bilovol 4673360b84bSTakashi Iwai if (cval->head.mixer->protocol == UAC_VERSION_1) { 46823caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 4699a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 470bc18e31cSJulian Scheel val_len = uac2_ctl_value_size(cval->val_type); 47123caaf19SDaniel Mack 47223caaf19SDaniel Mack /* FIXME */ 47323caaf19SDaniel Mack if (request != UAC_SET_CUR) { 4740ba41d91STakashi Iwai usb_audio_dbg(chip, "RANGE setting not yet supported\n"); 47523caaf19SDaniel Mack return -EINVAL; 47623caaf19SDaniel Mack } 47723caaf19SDaniel Mack 47823caaf19SDaniel Mack request = UAC2_CS_CUR; 47923caaf19SDaniel Mack } 480f0b5e634SDaniel Mack 481f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 482f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 483f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 484bc18e31cSJulian Scheel buf[2] = (value_set >> 16) & 0xff; 485bc18e31cSJulian Scheel buf[3] = (value_set >> 24) & 0xff; 48647ab1545STakashi Iwai 48747ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 48888a8516aSOliver Neukum if (err < 0) 48988a8516aSOliver Neukum return -EIO; 49047ab1545STakashi Iwai 491978520b7STakashi Iwai while (timeout-- > 0) { 4920aef31b7SChris Wulff idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); 4935a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, 4943d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 495f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 4965a9a8ecaSStephen Barber validx, idx, buf, val_len); 4975a9a8ecaSStephen Barber if (err >= 0) { 498978520b7STakashi Iwai err = 0; 499978520b7STakashi Iwai goto out; 5005a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 5015a9a8ecaSStephen Barber goto out; 50288a8516aSOliver Neukum } 503978520b7STakashi Iwai } 5040ba41d91STakashi Iwai usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 505978520b7STakashi Iwai request, validx, idx, cval->val_type, buf[0], buf[1]); 506978520b7STakashi Iwai err = -EINVAL; 507978520b7STakashi Iwai 508978520b7STakashi Iwai out: 50947ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 510978520b7STakashi Iwai return err; 511f0b5e634SDaniel Mack } 512f0b5e634SDaniel Mack 5136bc170e4SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, 5146bc170e4SDaniel Mack int validx, int value) 515f0b5e634SDaniel Mack { 516f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 517f0b5e634SDaniel Mack } 518f0b5e634SDaniel Mack 519eef90451SChris J Arges int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 520f0b5e634SDaniel Mack int index, int value) 521f0b5e634SDaniel Mack { 522f0b5e634SDaniel Mack int err; 523a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 524a6a33259SDaniel Mack cval->master_readonly : 525a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 526a6a33259SDaniel Mack 527a6a33259SDaniel Mack if (read_only) { 5283360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 5290ba41d91STakashi Iwai "%s(): channel %d of control %d is read_only\n", 530a6a33259SDaniel Mack __func__, channel, cval->control); 531a6a33259SDaniel Mack return 0; 532a6a33259SDaniel Mack } 533a6a33259SDaniel Mack 5346bc170e4SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, 5356bc170e4SDaniel Mack UAC_SET_CUR, (cval->control << 8) | channel, 536f0b5e634SDaniel Mack value); 537f0b5e634SDaniel Mack if (err < 0) 538f0b5e634SDaniel Mack return err; 539f0b5e634SDaniel Mack cval->cached |= 1 << channel; 540f0b5e634SDaniel Mack cval->cache_val[index] = value; 541f0b5e634SDaniel Mack return 0; 542f0b5e634SDaniel Mack } 543f0b5e634SDaniel Mack 544f0b5e634SDaniel Mack /* 545f0b5e634SDaniel Mack * TLV callback for mixer volume controls 546f0b5e634SDaniel Mack */ 547285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 548f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 549f0b5e634SDaniel Mack { 550f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 551f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 552f0b5e634SDaniel Mack 553f0b5e634SDaniel Mack if (size < sizeof(scale)) 554f0b5e634SDaniel Mack return -ENOMEM; 5550f174b35STakashi Iwai if (cval->min_mute) 5560f174b35STakashi Iwai scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; 557f0b5e634SDaniel Mack scale[2] = cval->dBmin; 558f0b5e634SDaniel Mack scale[3] = cval->dBmax; 559f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 560f0b5e634SDaniel Mack return -EFAULT; 561f0b5e634SDaniel Mack return 0; 562f0b5e634SDaniel Mack } 563f0b5e634SDaniel Mack 564f0b5e634SDaniel Mack /* 565f0b5e634SDaniel Mack * parser routines begin here... 566f0b5e634SDaniel Mack */ 567f0b5e634SDaniel Mack 568f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 569f0b5e634SDaniel Mack 570f0b5e634SDaniel Mack 571f0b5e634SDaniel Mack /* 572f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 573f0b5e634SDaniel Mack * used for mixer unit parser 574f0b5e634SDaniel Mack */ 5756bc170e4SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, 5766bc170e4SDaniel Mack int ich, int och, int num_outs) 577f0b5e634SDaniel Mack { 578f0b5e634SDaniel Mack int idx = ich * num_outs + och; 579f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 580f0b5e634SDaniel Mack } 581f0b5e634SDaniel Mack 582f0b5e634SDaniel Mack /* 583f0b5e634SDaniel Mack * add an alsa control element 584f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 585f0b5e634SDaniel Mack * 586f0b5e634SDaniel Mack * if failed, give up and free the control instance. 587f0b5e634SDaniel Mack */ 588f0b5e634SDaniel Mack 589220345e9STakashi Iwai int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list, 590220345e9STakashi Iwai struct snd_kcontrol *kctl, 591220345e9STakashi Iwai bool is_std_info) 592f0b5e634SDaniel Mack { 5933360b84bSTakashi Iwai struct usb_mixer_interface *mixer = list->mixer; 594f0b5e634SDaniel Mack int err; 595f0b5e634SDaniel Mack 596ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 597f0b5e634SDaniel Mack kctl->id.index++; 598f25ecf8fSTakashi Iwai err = snd_ctl_add(mixer->chip->card, kctl); 599f25ecf8fSTakashi Iwai if (err < 0) { 6006bc170e4SDaniel Mack usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", 6016bc170e4SDaniel Mack err); 602f0b5e634SDaniel Mack return err; 603f0b5e634SDaniel Mack } 6043360b84bSTakashi Iwai list->kctl = kctl; 605220345e9STakashi Iwai list->is_std_info = is_std_info; 6063360b84bSTakashi Iwai list->next_id_elem = mixer->id_elems[list->id]; 6073360b84bSTakashi Iwai mixer->id_elems[list->id] = list; 608f0b5e634SDaniel Mack return 0; 609f0b5e634SDaniel Mack } 610f0b5e634SDaniel Mack 611f0b5e634SDaniel Mack /* 612f0b5e634SDaniel Mack * get a terminal name string 613f0b5e634SDaniel Mack */ 614f0b5e634SDaniel Mack 615f0b5e634SDaniel Mack static struct iterm_name_combo { 616f0b5e634SDaniel Mack int type; 617f0b5e634SDaniel Mack char *name; 618f0b5e634SDaniel Mack } iterm_names[] = { 619f0b5e634SDaniel Mack { 0x0300, "Output" }, 620f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 621f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 622f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 623f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 624f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 625f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 626f0b5e634SDaniel Mack { 0x0307, "LFE" }, 627f0b5e634SDaniel Mack { 0x0600, "External In" }, 628f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 629f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 630f0b5e634SDaniel Mack { 0x0603, "Line" }, 631f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 632f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 633f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 634f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 635f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 636f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 637f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 638f0b5e634SDaniel Mack { 0x0703, "CD" }, 639f0b5e634SDaniel Mack { 0x0704, "DAT" }, 640f0b5e634SDaniel Mack { 0x0705, "DCC" }, 641f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 642f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 643f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 644f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 645f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 646f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 647f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 648f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 649f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 650f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 651f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 652f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 653f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 654f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 655f0b5e634SDaniel Mack { 0 }, 656f0b5e634SDaniel Mack }; 657f0b5e634SDaniel Mack 658eccfc1b8SRuslan Bilovol static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm, 659f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 660f0b5e634SDaniel Mack { 661f0b5e634SDaniel Mack struct iterm_name_combo *names; 66256a23ee5STakashi Iwai int len; 663f0b5e634SDaniel Mack 66456a23ee5STakashi Iwai if (iterm->name) { 665eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(chip, iterm->name, 6666bc170e4SDaniel Mack name, maxlen); 66756a23ee5STakashi Iwai if (len) 66856a23ee5STakashi Iwai return len; 66956a23ee5STakashi Iwai } 670f0b5e634SDaniel Mack 671f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 672f0b5e634SDaniel Mack if (iterm->type >> 16) { 673f0b5e634SDaniel Mack if (term_only) 674f0b5e634SDaniel Mack return 0; 675f0b5e634SDaniel Mack switch (iterm->type >> 16) { 6768b3a087fSJorge Sanjuan case UAC3_SELECTOR_UNIT: 6776bc170e4SDaniel Mack strcpy(name, "Selector"); 6786bc170e4SDaniel Mack return 8; 6798b3a087fSJorge Sanjuan case UAC3_PROCESSING_UNIT: 6806bc170e4SDaniel Mack strcpy(name, "Process Unit"); 6816bc170e4SDaniel Mack return 12; 6828b3a087fSJorge Sanjuan case UAC3_EXTENSION_UNIT: 6836bc170e4SDaniel Mack strcpy(name, "Ext Unit"); 6846bc170e4SDaniel Mack return 8; 6858b3a087fSJorge Sanjuan case UAC3_MIXER_UNIT: 6866bc170e4SDaniel Mack strcpy(name, "Mixer"); 6876bc170e4SDaniel Mack return 5; 688f0b5e634SDaniel Mack default: 689f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 690f0b5e634SDaniel Mack } 691f0b5e634SDaniel Mack } 692f0b5e634SDaniel Mack 693f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 694f0b5e634SDaniel Mack case 0x0100: 6956bc170e4SDaniel Mack strcpy(name, "PCM"); 6966bc170e4SDaniel Mack return 3; 697f0b5e634SDaniel Mack case 0x0200: 6986bc170e4SDaniel Mack strcpy(name, "Mic"); 6996bc170e4SDaniel Mack return 3; 700f0b5e634SDaniel Mack case 0x0400: 7016bc170e4SDaniel Mack strcpy(name, "Headset"); 7026bc170e4SDaniel Mack return 7; 703f0b5e634SDaniel Mack case 0x0500: 7046bc170e4SDaniel Mack strcpy(name, "Phone"); 7056bc170e4SDaniel Mack return 5; 706f0b5e634SDaniel Mack } 707f0b5e634SDaniel Mack 7086bc170e4SDaniel Mack for (names = iterm_names; names->type; names++) { 709f0b5e634SDaniel Mack if (names->type == iterm->type) { 710f0b5e634SDaniel Mack strcpy(name, names->name); 711f0b5e634SDaniel Mack return strlen(names->name); 712f0b5e634SDaniel Mack } 713f0b5e634SDaniel Mack } 714f0b5e634SDaniel Mack 7156bc170e4SDaniel Mack return 0; 7166bc170e4SDaniel Mack } 717f0b5e634SDaniel Mack 718f0b5e634SDaniel Mack /* 7196cfd839aSJorge Sanjuan * Get logical cluster information for UAC3 devices. 7206cfd839aSJorge Sanjuan */ 7216cfd839aSJorge Sanjuan static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id) 7226cfd839aSJorge Sanjuan { 7236cfd839aSJorge Sanjuan struct uac3_cluster_header_descriptor c_header; 7246cfd839aSJorge Sanjuan int err; 7256cfd839aSJorge Sanjuan 7266cfd839aSJorge Sanjuan err = snd_usb_ctl_msg(state->chip->dev, 7276cfd839aSJorge Sanjuan usb_rcvctrlpipe(state->chip->dev, 0), 7286cfd839aSJorge Sanjuan UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, 7296cfd839aSJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 7306cfd839aSJorge Sanjuan cluster_id, 7316cfd839aSJorge Sanjuan snd_usb_ctrl_intf(state->chip), 7326cfd839aSJorge Sanjuan &c_header, sizeof(c_header)); 7336cfd839aSJorge Sanjuan if (err < 0) 7346cfd839aSJorge Sanjuan goto error; 7356cfd839aSJorge Sanjuan if (err != sizeof(c_header)) { 7366cfd839aSJorge Sanjuan err = -EIO; 7376cfd839aSJorge Sanjuan goto error; 7386cfd839aSJorge Sanjuan } 7396cfd839aSJorge Sanjuan 7406cfd839aSJorge Sanjuan return c_header.bNrChannels; 7416cfd839aSJorge Sanjuan 7426cfd839aSJorge Sanjuan error: 7436cfd839aSJorge Sanjuan usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err); 7446cfd839aSJorge Sanjuan return err; 7456cfd839aSJorge Sanjuan } 7466cfd839aSJorge Sanjuan 7476cfd839aSJorge Sanjuan /* 7486cfd839aSJorge Sanjuan * Get number of channels for a Mixer Unit. 7496cfd839aSJorge Sanjuan */ 7506cfd839aSJorge Sanjuan static int uac_mixer_unit_get_channels(struct mixer_build *state, 7516cfd839aSJorge Sanjuan struct uac_mixer_unit_descriptor *desc) 7526cfd839aSJorge Sanjuan { 7536cfd839aSJorge Sanjuan int mu_channels; 7546cfd839aSJorge Sanjuan 7556cfd839aSJorge Sanjuan switch (state->mixer->protocol) { 7566cfd839aSJorge Sanjuan case UAC_VERSION_1: 7576cfd839aSJorge Sanjuan case UAC_VERSION_2: 7586cfd839aSJorge Sanjuan default: 7590bfe5e43STakashi Iwai if (desc->bLength < sizeof(*desc) + desc->bNrInPins + 1) 7600bfe5e43STakashi Iwai return 0; /* no bmControls -> skip */ 7616cfd839aSJorge Sanjuan mu_channels = uac_mixer_unit_bNrChannels(desc); 7626cfd839aSJorge Sanjuan break; 7636cfd839aSJorge Sanjuan case UAC_VERSION_3: 7646cfd839aSJorge Sanjuan mu_channels = get_cluster_channels_v3(state, 7656cfd839aSJorge Sanjuan uac3_mixer_unit_wClusterDescrID(desc)); 7666cfd839aSJorge Sanjuan break; 7676cfd839aSJorge Sanjuan } 7686cfd839aSJorge Sanjuan 7696cfd839aSJorge Sanjuan return mu_channels; 7706cfd839aSJorge Sanjuan } 7716cfd839aSJorge Sanjuan 7726cfd839aSJorge Sanjuan /* 773e0ccdef9STakashi Iwai * Parse Input Terminal Unit 774f0b5e634SDaniel Mack */ 77519bce474SHui Peng static int __check_input_term(struct mixer_build *state, int id, 776e0ccdef9STakashi Iwai struct usb_audio_term *term); 777e0ccdef9STakashi Iwai 778e0ccdef9STakashi Iwai static int parse_term_uac1_iterm_unit(struct mixer_build *state, 779e0ccdef9STakashi Iwai struct usb_audio_term *term, 780e0ccdef9STakashi Iwai void *p1, int id) 781f0b5e634SDaniel Mack { 78223caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 7839a2fe9b8SRuslan Bilovol 78423caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 78523caaf19SDaniel Mack term->channels = d->bNrChannels; 78623caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 78723caaf19SDaniel Mack term->name = d->iTerminal; 788e0ccdef9STakashi Iwai return 0; 789e0ccdef9STakashi Iwai } 7909430e547SJulian Scheel 791e0ccdef9STakashi Iwai static int parse_term_uac2_iterm_unit(struct mixer_build *state, 792e0ccdef9STakashi Iwai struct usb_audio_term *term, 793e0ccdef9STakashi Iwai void *p1, int id) 794e0ccdef9STakashi Iwai { 795e0ccdef9STakashi Iwai struct uac2_input_terminal_descriptor *d = p1; 796e0ccdef9STakashi Iwai int err; 797e0ccdef9STakashi Iwai 798e0ccdef9STakashi Iwai /* call recursively to verify the referenced clock entity */ 79919bce474SHui Peng err = __check_input_term(state, d->bCSourceID, term); 8009430e547SJulian Scheel if (err < 0) 8019430e547SJulian Scheel return err; 8029430e547SJulian Scheel 8039430e547SJulian Scheel /* save input term properties after recursion, 804e0ccdef9STakashi Iwai * to ensure they are not overriden by the recursion calls 805e0ccdef9STakashi Iwai */ 8069430e547SJulian Scheel term->id = id; 80723caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 80823caaf19SDaniel Mack term->channels = d->bNrChannels; 80923caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 81023caaf19SDaniel Mack term->name = d->iTerminal; 8115dae5fd2SEldad Zack return 0; 8125dae5fd2SEldad Zack } 8135dae5fd2SEldad Zack 814e0ccdef9STakashi Iwai static int parse_term_uac3_iterm_unit(struct mixer_build *state, 815e0ccdef9STakashi Iwai struct usb_audio_term *term, 816e0ccdef9STakashi Iwai void *p1, int id) 817e0ccdef9STakashi Iwai { 8189a2fe9b8SRuslan Bilovol struct uac3_input_terminal_descriptor *d = p1; 819e0ccdef9STakashi Iwai int err; 8209a2fe9b8SRuslan Bilovol 821e0ccdef9STakashi Iwai /* call recursively to verify the referenced clock entity */ 82219bce474SHui Peng err = __check_input_term(state, d->bCSourceID, term); 8239a2fe9b8SRuslan Bilovol if (err < 0) 8249a2fe9b8SRuslan Bilovol return err; 8259a2fe9b8SRuslan Bilovol 8269a2fe9b8SRuslan Bilovol /* save input term properties after recursion, 827e0ccdef9STakashi Iwai * to ensure they are not overriden by the recursion calls 828e0ccdef9STakashi Iwai */ 8299a2fe9b8SRuslan Bilovol term->id = id; 8309a2fe9b8SRuslan Bilovol term->type = le16_to_cpu(d->wTerminalType); 8319a2fe9b8SRuslan Bilovol 83271066945SJorge Sanjuan err = get_cluster_channels_v3(state, le16_to_cpu(d->wClusterDescrID)); 83371066945SJorge Sanjuan if (err < 0) 83471066945SJorge Sanjuan return err; 83571066945SJorge Sanjuan term->channels = err; 83671066945SJorge Sanjuan 83771066945SJorge Sanjuan /* REVISIT: UAC3 IT doesn't have channels cfg */ 8389a2fe9b8SRuslan Bilovol term->chconfig = 0; 8399a2fe9b8SRuslan Bilovol 8409a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wTerminalDescrStr); 8419a2fe9b8SRuslan Bilovol return 0; 8429a2fe9b8SRuslan Bilovol } 8439a2fe9b8SRuslan Bilovol 844e0ccdef9STakashi Iwai static int parse_term_mixer_unit(struct mixer_build *state, 845e0ccdef9STakashi Iwai struct usb_audio_term *term, 846e0ccdef9STakashi Iwai void *p1, int id) 847e0ccdef9STakashi Iwai { 848e0ccdef9STakashi Iwai struct uac_mixer_unit_descriptor *d = p1; 849e0ccdef9STakashi Iwai int protocol = state->mixer->protocol; 850e0ccdef9STakashi Iwai int err; 851e0ccdef9STakashi Iwai 852e0ccdef9STakashi Iwai err = uac_mixer_unit_get_channels(state, d); 853e0ccdef9STakashi Iwai if (err <= 0) 854e0ccdef9STakashi Iwai return err; 855e0ccdef9STakashi Iwai 856e0ccdef9STakashi Iwai term->type = UAC3_MIXER_UNIT << 16; /* virtual type */ 857e0ccdef9STakashi Iwai term->channels = err; 858e0ccdef9STakashi Iwai if (protocol != UAC_VERSION_3) { 859e0ccdef9STakashi Iwai term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol); 860e0ccdef9STakashi Iwai term->name = uac_mixer_unit_iMixer(d); 8619a2fe9b8SRuslan Bilovol } 862e0ccdef9STakashi Iwai return 0; 863e0ccdef9STakashi Iwai } 864e0ccdef9STakashi Iwai 865e0ccdef9STakashi Iwai static int parse_term_selector_unit(struct mixer_build *state, 866e0ccdef9STakashi Iwai struct usb_audio_term *term, 867e0ccdef9STakashi Iwai void *p1, int id) 868e0ccdef9STakashi Iwai { 869e0ccdef9STakashi Iwai struct uac_selector_unit_descriptor *d = p1; 870e0ccdef9STakashi Iwai int err; 871e0ccdef9STakashi Iwai 872e0ccdef9STakashi Iwai /* call recursively to retrieve the channel info */ 873e0ccdef9STakashi Iwai err = __check_input_term(state, d->baSourceID[0], term); 874e0ccdef9STakashi Iwai if (err < 0) 875e0ccdef9STakashi Iwai return err; 876e0ccdef9STakashi Iwai term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ 877e0ccdef9STakashi Iwai term->id = id; 878e0ccdef9STakashi Iwai if (state->mixer->protocol != UAC_VERSION_3) 879e0ccdef9STakashi Iwai term->name = uac_selector_unit_iSelector(d); 880e0ccdef9STakashi Iwai return 0; 881e0ccdef9STakashi Iwai } 882e0ccdef9STakashi Iwai 883e0ccdef9STakashi Iwai static int parse_term_proc_unit(struct mixer_build *state, 884e0ccdef9STakashi Iwai struct usb_audio_term *term, 885e0ccdef9STakashi Iwai void *p1, int id, int vtype) 886e0ccdef9STakashi Iwai { 887e0ccdef9STakashi Iwai struct uac_processing_unit_descriptor *d = p1; 888e0ccdef9STakashi Iwai int protocol = state->mixer->protocol; 889e0ccdef9STakashi Iwai int err; 890e0ccdef9STakashi Iwai 891e0ccdef9STakashi Iwai if (d->bNrInPins) { 892e0ccdef9STakashi Iwai /* call recursively to retrieve the channel info */ 893e0ccdef9STakashi Iwai err = __check_input_term(state, d->baSourceID[0], term); 894e0ccdef9STakashi Iwai if (err < 0) 895e0ccdef9STakashi Iwai return err; 896e0ccdef9STakashi Iwai } 897e0ccdef9STakashi Iwai 898e0ccdef9STakashi Iwai term->type = vtype << 16; /* virtual type */ 899e0ccdef9STakashi Iwai term->id = id; 900e0ccdef9STakashi Iwai 901e0ccdef9STakashi Iwai if (protocol == UAC_VERSION_3) 902e0ccdef9STakashi Iwai return 0; 903e0ccdef9STakashi Iwai 904e0ccdef9STakashi Iwai if (!term->channels) { 905e0ccdef9STakashi Iwai term->channels = uac_processing_unit_bNrChannels(d); 906e0ccdef9STakashi Iwai term->chconfig = uac_processing_unit_wChannelConfig(d, protocol); 907e0ccdef9STakashi Iwai } 908e0ccdef9STakashi Iwai term->name = uac_processing_unit_iProcessing(d, protocol); 909e0ccdef9STakashi Iwai return 0; 910e0ccdef9STakashi Iwai } 911e0ccdef9STakashi Iwai 912d75a170fSTakashi Iwai static int parse_term_effect_unit(struct mixer_build *state, 913d75a170fSTakashi Iwai struct usb_audio_term *term, 914d75a170fSTakashi Iwai void *p1, int id) 915d75a170fSTakashi Iwai { 91660081b35STakashi Iwai struct uac2_effect_unit_descriptor *d = p1; 91760081b35STakashi Iwai int err; 91860081b35STakashi Iwai 91960081b35STakashi Iwai err = __check_input_term(state, d->bSourceID, term); 92060081b35STakashi Iwai if (err < 0) 92160081b35STakashi Iwai return err; 922d75a170fSTakashi Iwai term->type = UAC3_EFFECT_UNIT << 16; /* virtual type */ 923d75a170fSTakashi Iwai term->id = id; 924d75a170fSTakashi Iwai return 0; 925d75a170fSTakashi Iwai } 926d75a170fSTakashi Iwai 927e0ccdef9STakashi Iwai static int parse_term_uac2_clock_source(struct mixer_build *state, 928e0ccdef9STakashi Iwai struct usb_audio_term *term, 929e0ccdef9STakashi Iwai void *p1, int id) 930e0ccdef9STakashi Iwai { 931e0ccdef9STakashi Iwai struct uac_clock_source_descriptor *d = p1; 932e0ccdef9STakashi Iwai 933e0ccdef9STakashi Iwai term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ 934e0ccdef9STakashi Iwai term->id = id; 935e0ccdef9STakashi Iwai term->name = d->iClockSource; 936e0ccdef9STakashi Iwai return 0; 937e0ccdef9STakashi Iwai } 938e0ccdef9STakashi Iwai 939e0ccdef9STakashi Iwai static int parse_term_uac3_clock_source(struct mixer_build *state, 940e0ccdef9STakashi Iwai struct usb_audio_term *term, 941e0ccdef9STakashi Iwai void *p1, int id) 942e0ccdef9STakashi Iwai { 9439a2fe9b8SRuslan Bilovol struct uac3_clock_source_descriptor *d = p1; 9449a2fe9b8SRuslan Bilovol 9458b3a087fSJorge Sanjuan term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ 9469a2fe9b8SRuslan Bilovol term->id = id; 9479a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wClockSourceStr); 9489a2fe9b8SRuslan Bilovol return 0; 9499a2fe9b8SRuslan Bilovol } 9506cfd839aSJorge Sanjuan 951e0ccdef9STakashi Iwai #define PTYPE(a, b) ((a) << 8 | (b)) 9526cfd839aSJorge Sanjuan 953e0ccdef9STakashi Iwai /* 954e0ccdef9STakashi Iwai * parse the source unit recursively until it reaches to a terminal 955e0ccdef9STakashi Iwai * or a branched unit. 956e0ccdef9STakashi Iwai */ 957e0ccdef9STakashi Iwai static int __check_input_term(struct mixer_build *state, int id, 958e0ccdef9STakashi Iwai struct usb_audio_term *term) 959e0ccdef9STakashi Iwai { 960e0ccdef9STakashi Iwai int protocol = state->mixer->protocol; 961e0ccdef9STakashi Iwai void *p1; 962e0ccdef9STakashi Iwai unsigned char *hdr; 9636cfd839aSJorge Sanjuan 964e0ccdef9STakashi Iwai for (;;) { 965e0ccdef9STakashi Iwai /* a loop in the terminal chain? */ 966e0ccdef9STakashi Iwai if (test_and_set_bit(id, state->termbitmap)) 9670f292f02SJorge Sanjuan return -EINVAL; 9680f292f02SJorge Sanjuan 969e0ccdef9STakashi Iwai p1 = find_audio_control_unit(state, id); 970e0ccdef9STakashi Iwai if (!p1) 971e0ccdef9STakashi Iwai break; 972e0ccdef9STakashi Iwai if (!snd_usb_validate_audio_desc(p1, protocol)) 973e0ccdef9STakashi Iwai break; /* bad descriptor */ 9740f292f02SJorge Sanjuan 975e0ccdef9STakashi Iwai hdr = p1; 9760f292f02SJorge Sanjuan term->id = id; 9770f292f02SJorge Sanjuan 978e0ccdef9STakashi Iwai switch (PTYPE(protocol, hdr[2])) { 979e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): 980e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): 981e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): { 982e0ccdef9STakashi Iwai /* the header is the same for all versions */ 983e0ccdef9STakashi Iwai struct uac_feature_unit_descriptor *d = p1; 984e0ccdef9STakashi Iwai 985e0ccdef9STakashi Iwai id = d->bSourceID; 986e0ccdef9STakashi Iwai break; /* continue to parse */ 9870f292f02SJorge Sanjuan } 988e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): 989e0ccdef9STakashi Iwai return parse_term_uac1_iterm_unit(state, term, p1, id); 990e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): 991e0ccdef9STakashi Iwai return parse_term_uac2_iterm_unit(state, term, p1, id); 992e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): 993e0ccdef9STakashi Iwai return parse_term_uac3_iterm_unit(state, term, p1, id); 994e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): 995e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): 996e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): 997e0ccdef9STakashi Iwai return parse_term_mixer_unit(state, term, p1, id); 998e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): 999e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): 1000e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): 1001e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): 1002e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): 1003e0ccdef9STakashi Iwai return parse_term_selector_unit(state, term, p1, id); 1004e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): 1005e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): 1006e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): 1007e0ccdef9STakashi Iwai return parse_term_proc_unit(state, term, p1, id, 1008e0ccdef9STakashi Iwai UAC3_PROCESSING_UNIT); 1009e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): 1010e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): 1011d75a170fSTakashi Iwai return parse_term_effect_unit(state, term, p1, id); 1012e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): 1013e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): 1014e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): 1015e0ccdef9STakashi Iwai return parse_term_proc_unit(state, term, p1, id, 1016e0ccdef9STakashi Iwai UAC3_EXTENSION_UNIT); 1017e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): 1018e0ccdef9STakashi Iwai return parse_term_uac2_clock_source(state, term, p1, id); 1019e0ccdef9STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): 1020e0ccdef9STakashi Iwai return parse_term_uac3_clock_source(state, term, p1, id); 10219a2fe9b8SRuslan Bilovol default: 10229a2fe9b8SRuslan Bilovol return -ENODEV; 10239a2fe9b8SRuslan Bilovol } 10249a2fe9b8SRuslan Bilovol } 1025f0b5e634SDaniel Mack return -ENODEV; 1026f0b5e634SDaniel Mack } 1027f0b5e634SDaniel Mack 102819bce474SHui Peng 102919bce474SHui Peng static int check_input_term(struct mixer_build *state, int id, 103019bce474SHui Peng struct usb_audio_term *term) 103119bce474SHui Peng { 103219bce474SHui Peng memset(term, 0, sizeof(*term)); 103319bce474SHui Peng memset(state->termbitmap, 0, sizeof(state->termbitmap)); 103419bce474SHui Peng return __check_input_term(state, id, term); 103519bce474SHui Peng } 103619bce474SHui Peng 1037f0b5e634SDaniel Mack /* 1038f0b5e634SDaniel Mack * Feature Unit 1039f0b5e634SDaniel Mack */ 1040f0b5e634SDaniel Mack 1041f0b5e634SDaniel Mack /* feature unit control information */ 1042f0b5e634SDaniel Mack struct usb_feature_control_info { 104321e9b3e9SAndrew Chant int control; 1044f0b5e634SDaniel Mack const char *name; 1045bc18e31cSJulian Scheel int type; /* data type for uac1 */ 1046bc18e31cSJulian Scheel int type_uac2; /* data type for uac2 if different from uac1, else -1 */ 1047f0b5e634SDaniel Mack }; 1048f0b5e634SDaniel Mack 1049a01df925STakashi Iwai static const struct usb_feature_control_info audio_feature_info[] = { 105021e9b3e9SAndrew Chant { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 }, 105121e9b3e9SAndrew Chant { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 }, 105221e9b3e9SAndrew Chant { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 }, 105321e9b3e9SAndrew Chant { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 }, 105421e9b3e9SAndrew Chant { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 }, 105521e9b3e9SAndrew Chant { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemented yet */ 105621e9b3e9SAndrew Chant { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, 105721e9b3e9SAndrew Chant { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, 105821e9b3e9SAndrew Chant { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 }, 105921e9b3e9SAndrew Chant { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 }, 10602e0281d1SDaniel Mack /* UAC2 specific */ 106121e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 }, 106221e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 }, 106321e9b3e9SAndrew Chant { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, 1064f0b5e634SDaniel Mack }; 1065f0b5e634SDaniel Mack 106652c3e317STakashi Iwai static void usb_mixer_elem_info_free(struct usb_mixer_elem_info *cval) 106752c3e317STakashi Iwai { 106852c3e317STakashi Iwai kfree(cval); 106952c3e317STakashi Iwai } 107052c3e317STakashi Iwai 1071f0b5e634SDaniel Mack /* private_free callback */ 1072eef90451SChris J Arges void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) 1073f0b5e634SDaniel Mack { 107452c3e317STakashi Iwai usb_mixer_elem_info_free(kctl->private_data); 1075f0b5e634SDaniel Mack kctl->private_data = NULL; 1076f0b5e634SDaniel Mack } 1077f0b5e634SDaniel Mack 1078f0b5e634SDaniel Mack /* 1079f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 1080f0b5e634SDaniel Mack */ 1081f0b5e634SDaniel Mack 1082dcaaf9f2STakashi Iwai /* volume control quirks */ 1083dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 1084dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 1085dcaaf9f2STakashi Iwai { 10863360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 10870ba41d91STakashi Iwai switch (chip->usb_id) { 1088d50ed624SEldad Zack case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ 1089e9a25e04SMatt Gruskin case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ 1090d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Duration") == 0) { 1091d50ed624SEldad Zack cval->min = 0x0000; 1092d50ed624SEldad Zack cval->max = 0xffff; 1093d50ed624SEldad Zack cval->res = 0x00e6; 1094d50ed624SEldad Zack break; 1095d50ed624SEldad Zack } 1096d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Volume") == 0 || 1097d50ed624SEldad Zack strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 1098d50ed624SEldad Zack cval->min = 0x00; 1099d50ed624SEldad Zack cval->max = 0xff; 1100d50ed624SEldad Zack break; 1101d50ed624SEldad Zack } 1102d50ed624SEldad Zack if (strstr(kctl->id.name, "Effect Return") != NULL) { 1103d50ed624SEldad Zack cval->min = 0xb706; 1104d50ed624SEldad Zack cval->max = 0xff7b; 1105d50ed624SEldad Zack cval->res = 0x0073; 1106d50ed624SEldad Zack break; 1107d50ed624SEldad Zack } 1108d50ed624SEldad Zack if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 1109d50ed624SEldad Zack (strstr(kctl->id.name, "Effect Send") != NULL)) { 1110d50ed624SEldad Zack cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ 1111d50ed624SEldad Zack cval->max = 0xfcfe; 1112d50ed624SEldad Zack cval->res = 0x0073; 1113d50ed624SEldad Zack } 1114d50ed624SEldad Zack break; 1115d50ed624SEldad Zack 1116d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 1117d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 1118d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 11190ba41d91STakashi Iwai usb_audio_info(chip, 11200ba41d91STakashi Iwai "set quirk for FTU Effect Duration\n"); 1121d34bf148SFelix Homann cval->min = 0x0000; 1122d34bf148SFelix Homann cval->max = 0x7f00; 1123d34bf148SFelix Homann cval->res = 0x0100; 1124d34bf148SFelix Homann break; 1125d34bf148SFelix Homann } 1126d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 1127d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 11280ba41d91STakashi Iwai usb_audio_info(chip, 11290ba41d91STakashi Iwai "set quirks for FTU Effect Feedback/Volume\n"); 1130d34bf148SFelix Homann cval->min = 0x00; 1131d34bf148SFelix Homann cval->max = 0x7f; 1132d34bf148SFelix Homann break; 1133d34bf148SFelix Homann } 1134d34bf148SFelix Homann break; 1135d34bf148SFelix Homann 113621493316SFederico Cuello case USB_ID(0x0d8c, 0x0103): 113721493316SFederico Cuello if (!strcmp(kctl->id.name, "PCM Playback Volume")) { 113821493316SFederico Cuello usb_audio_info(chip, 113921493316SFederico Cuello "set volume quirk for CM102-A+/102S+\n"); 114021493316SFederico Cuello cval->min = -256; 114121493316SFederico Cuello } 114221493316SFederico Cuello break; 114321493316SFederico Cuello 1144dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 1145dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 1146dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 1147dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 1148dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 1149dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 1150dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 1151dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 1152dcaaf9f2STakashi Iwai */ 1153dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 1154dcaaf9f2STakashi Iwai cval->min == -15616) { 11550ba41d91STakashi Iwai usb_audio_info(chip, 1156dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 1157dcaaf9f2STakashi Iwai cval->max = -256; 1158dcaaf9f2STakashi Iwai } 1159dcaaf9f2STakashi Iwai break; 1160dcaaf9f2STakashi Iwai 1161dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 1162dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 11630ba41d91STakashi Iwai usb_audio_info(chip, 1164dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 1165dcaaf9f2STakashi Iwai cval->min = 6080; 1166dcaaf9f2STakashi Iwai cval->max = 8768; 1167dcaaf9f2STakashi Iwai cval->res = 192; 1168dcaaf9f2STakashi Iwai } 1169dcaaf9f2STakashi Iwai break; 1170dcaaf9f2STakashi Iwai 1171e805ca8bSTakashi Iwai case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ 1172dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 1173dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 117464559311SJason Lee Cragg case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ 117536691e1bSTakashi Iwai case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ 117655c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 117711e7064fSTakashi Iwai case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ 1178140d37deSMaksim A. Boyko case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ 11791ef9f058SWolfram Sang case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ 1180dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 118182ffb6fcSCon Kolivas case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ 1182dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 1183dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 118482ffb6fcSCon Kolivas * Probably there is some logitech magic behind this number --fishor 1185dcaaf9f2STakashi Iwai */ 1186dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 11870ba41d91STakashi Iwai usb_audio_info(chip, 1188dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 1189dcaaf9f2STakashi Iwai cval->res = 384; 1190dcaaf9f2STakashi Iwai } 1191dcaaf9f2STakashi Iwai break; 11924020d1ccSChris Chiu case USB_ID(0x0495, 0x3042): /* ESS Technology Asus USB DAC */ 11934020d1ccSChris Chiu if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 11944020d1ccSChris Chiu strstr(kctl->id.name, "Capture Volume") != NULL) { 11954020d1ccSChris Chiu cval->min >>= 8; 11964020d1ccSChris Chiu cval->max = 0; 11974020d1ccSChris Chiu cval->res = 1; 11984020d1ccSChris Chiu } 11994020d1ccSChris Chiu break; 120029664923SMarco Giunta case USB_ID(0x1224, 0x2a25): /* Jieli Technology USB PHY 2.0 */ 120129664923SMarco Giunta if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 120229664923SMarco Giunta usb_audio_info(chip, 120329664923SMarco Giunta "set resolution quirk: cval->res = 16\n"); 120429664923SMarco Giunta cval->res = 16; 120529664923SMarco Giunta } 120629664923SMarco Giunta break; 1207dcaaf9f2STakashi Iwai } 1208dcaaf9f2STakashi Iwai } 1209dcaaf9f2STakashi Iwai 1210b96681bdSTakashi Iwai /* forcibly initialize the current mixer value; if GET_CUR fails, set to 1211b96681bdSTakashi Iwai * the minimum as default 1212b96681bdSTakashi Iwai */ 1213b96681bdSTakashi Iwai static void init_cur_mix_raw(struct usb_mixer_elem_info *cval, int ch, int idx) 1214b96681bdSTakashi Iwai { 1215b96681bdSTakashi Iwai int val, err; 1216b96681bdSTakashi Iwai 1217b96681bdSTakashi Iwai err = snd_usb_get_cur_mix_value(cval, ch, idx, &val); 1218b96681bdSTakashi Iwai if (!err) 1219b96681bdSTakashi Iwai return; 1220b96681bdSTakashi Iwai if (!cval->head.mixer->ignore_ctl_error) 1221b96681bdSTakashi Iwai usb_audio_warn(cval->head.mixer->chip, 1222b96681bdSTakashi Iwai "%d:%d: failed to get current value for ch %d (%d)\n", 1223b96681bdSTakashi Iwai cval->head.id, mixer_ctrl_intf(cval->head.mixer), 1224b96681bdSTakashi Iwai ch, err); 1225b96681bdSTakashi Iwai snd_usb_set_cur_mix_value(cval, ch, idx, cval->min); 1226b96681bdSTakashi Iwai } 1227b96681bdSTakashi Iwai 1228f0b5e634SDaniel Mack /* 1229f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 1230f0b5e634SDaniel Mack */ 1231dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 1232dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 1233f0b5e634SDaniel Mack { 1234b96681bdSTakashi Iwai int i, idx; 1235b96681bdSTakashi Iwai 1236f0b5e634SDaniel Mack /* for failsafe */ 1237f0b5e634SDaniel Mack cval->min = default_min; 1238f0b5e634SDaniel Mack cval->max = cval->min + 1; 1239f0b5e634SDaniel Mack cval->res = 1; 1240f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 1241f0b5e634SDaniel Mack 1242f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1243f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1244f0b5e634SDaniel Mack cval->initialized = 1; 1245f0b5e634SDaniel Mack } else { 1246f0b5e634SDaniel Mack int minchn = 0; 1247f0b5e634SDaniel Mack if (cval->cmask) { 1248f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 1249f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 1250f0b5e634SDaniel Mack minchn = i + 1; 1251f0b5e634SDaniel Mack break; 1252f0b5e634SDaniel Mack } 1253f0b5e634SDaniel Mack } 1254f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 1255f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 12563360b84bSTakashi Iwai usb_audio_err(cval->head.mixer->chip, 12570ba41d91STakashi Iwai "%d:%d: cannot get min/max values for control %d (id %d)\n", 12580aef31b7SChris Wulff cval->head.id, mixer_ctrl_intf(cval->head.mixer), 12593360b84bSTakashi Iwai cval->control, cval->head.id); 1260f0b5e634SDaniel Mack return -EINVAL; 1261f0b5e634SDaniel Mack } 12626bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 12636bc170e4SDaniel Mack (cval->control << 8) | minchn, 12646bc170e4SDaniel Mack &cval->res) < 0) { 1265f0b5e634SDaniel Mack cval->res = 1; 126685db1cfbSTakashi Iwai } else if (cval->head.mixer->protocol == UAC_VERSION_1) { 1267f0b5e634SDaniel Mack int last_valid_res = cval->res; 1268f0b5e634SDaniel Mack 1269f0b5e634SDaniel Mack while (cval->res > 1) { 1270f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 12716bc170e4SDaniel Mack (cval->control << 8) | minchn, 12726bc170e4SDaniel Mack cval->res / 2) < 0) 1273f0b5e634SDaniel Mack break; 1274f0b5e634SDaniel Mack cval->res /= 2; 1275f0b5e634SDaniel Mack } 12766bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 12776bc170e4SDaniel Mack (cval->control << 8) | minchn, &cval->res) < 0) 1278f0b5e634SDaniel Mack cval->res = last_valid_res; 1279f0b5e634SDaniel Mack } 1280f0b5e634SDaniel Mack if (cval->res == 0) 1281f0b5e634SDaniel Mack cval->res = 1; 1282f0b5e634SDaniel Mack 1283f0b5e634SDaniel Mack /* Additional checks for the proper resolution 1284f0b5e634SDaniel Mack * 1285f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 1286f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 1287f0b5e634SDaniel Mack * to the lower aligned value. 1288f0b5e634SDaniel Mack */ 1289f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 1290f0b5e634SDaniel Mack int last_valid_res = cval->res; 1291f0b5e634SDaniel Mack int saved, test, check; 1292167beb17STakashi Iwai if (get_cur_mix_raw(cval, minchn, &saved) < 0) 1293167beb17STakashi Iwai goto no_res_check; 1294f0b5e634SDaniel Mack for (;;) { 1295f0b5e634SDaniel Mack test = saved; 1296f0b5e634SDaniel Mack if (test < cval->max) 1297f0b5e634SDaniel Mack test += cval->res; 1298f0b5e634SDaniel Mack else 1299f0b5e634SDaniel Mack test -= cval->res; 1300f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 1301eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, test) || 1302f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 1303f0b5e634SDaniel Mack cval->res = last_valid_res; 1304f0b5e634SDaniel Mack break; 1305f0b5e634SDaniel Mack } 1306f0b5e634SDaniel Mack if (test == check) 1307f0b5e634SDaniel Mack break; 1308f0b5e634SDaniel Mack cval->res *= 2; 1309f0b5e634SDaniel Mack } 1310eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, saved); 1311f0b5e634SDaniel Mack } 1312f0b5e634SDaniel Mack 1313167beb17STakashi Iwai no_res_check: 1314f0b5e634SDaniel Mack cval->initialized = 1; 1315f0b5e634SDaniel Mack } 1316f0b5e634SDaniel Mack 1317dcaaf9f2STakashi Iwai if (kctl) 1318dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 1319dcaaf9f2STakashi Iwai 1320f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 1321f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 1322f0b5e634SDaniel Mack */ 1323f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 1324f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 1325f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1326f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 1327f0b5e634SDaniel Mack if (cval->dBmin < 0) 1328f0b5e634SDaniel Mack cval->dBmax = 0; 1329f0b5e634SDaniel Mack else if (cval->dBmin > 0) 1330f0b5e634SDaniel Mack cval->dBmin = 0; 1331f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1332f0b5e634SDaniel Mack /* totally crap, return an error */ 1333f0b5e634SDaniel Mack return -EINVAL; 1334f0b5e634SDaniel Mack } 133521cba9c5STakashi Iwai } else { 133621cba9c5STakashi Iwai /* if the max volume is too low, it's likely a bogus range; 133721cba9c5STakashi Iwai * here we use -96dB as the threshold 133821cba9c5STakashi Iwai */ 133921cba9c5STakashi Iwai if (cval->dBmax <= -9600) { 134021cba9c5STakashi Iwai usb_audio_info(cval->head.mixer->chip, 134121cba9c5STakashi Iwai "%d:%d: bogus dB values (%d/%d), disabling dB reporting\n", 134221cba9c5STakashi Iwai cval->head.id, mixer_ctrl_intf(cval->head.mixer), 134321cba9c5STakashi Iwai cval->dBmin, cval->dBmax); 134421cba9c5STakashi Iwai cval->dBmin = cval->dBmax = 0; 134521cba9c5STakashi Iwai } 1346f0b5e634SDaniel Mack } 1347f0b5e634SDaniel Mack 1348b96681bdSTakashi Iwai /* initialize all elements */ 1349b96681bdSTakashi Iwai if (!cval->cmask) { 1350b96681bdSTakashi Iwai init_cur_mix_raw(cval, 0, 0); 1351b96681bdSTakashi Iwai } else { 1352b96681bdSTakashi Iwai idx = 0; 1353b96681bdSTakashi Iwai for (i = 0; i < MAX_CHANNELS; i++) { 1354b96681bdSTakashi Iwai if (cval->cmask & (1 << i)) { 1355b96681bdSTakashi Iwai init_cur_mix_raw(cval, i + 1, idx); 1356b96681bdSTakashi Iwai idx++; 1357b96681bdSTakashi Iwai } 1358b96681bdSTakashi Iwai } 1359b96681bdSTakashi Iwai } 1360b96681bdSTakashi Iwai 1361f0b5e634SDaniel Mack return 0; 1362f0b5e634SDaniel Mack } 1363f0b5e634SDaniel Mack 1364dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 1365f0b5e634SDaniel Mack 1366f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 13676bc170e4SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, 13686bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 1369f0b5e634SDaniel Mack { 1370f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1371f0b5e634SDaniel Mack 1372f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1373f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 1374f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1375f0b5e634SDaniel Mack else 1376f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1377f0b5e634SDaniel Mack uinfo->count = cval->channels; 1378f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1379f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1380f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1381f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 1382f0b5e634SDaniel Mack } else { 13839fcd0ab1STakashi Iwai if (!cval->initialized) { 1384dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 13859fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 13869fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 13879fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 13889fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 13893360b84bSTakashi Iwai snd_ctl_notify(cval->head.mixer->chip->card, 13909fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 13919fcd0ab1STakashi Iwai &kcontrol->id); 13929fcd0ab1STakashi Iwai } 13939fcd0ab1STakashi Iwai } 1394f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1395f0b5e634SDaniel Mack uinfo->value.integer.max = 1396e4d8aef2SLars-Peter Clausen DIV_ROUND_UP(cval->max - cval->min, cval->res); 1397f0b5e634SDaniel Mack } 1398f0b5e634SDaniel Mack return 0; 1399f0b5e634SDaniel Mack } 1400f0b5e634SDaniel Mack 1401f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 14026bc170e4SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, 14036bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1404f0b5e634SDaniel Mack { 1405f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1406f0b5e634SDaniel Mack int c, cnt, val, err; 1407f0b5e634SDaniel Mack 1408f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1409f0b5e634SDaniel Mack if (cval->cmask) { 1410f0b5e634SDaniel Mack cnt = 0; 1411f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1412f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1413f0b5e634SDaniel Mack continue; 1414eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); 1415f0b5e634SDaniel Mack if (err < 0) 14165aeee342STakashi Iwai return filter_error(cval, err); 1417f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1418f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 1419f0b5e634SDaniel Mack cnt++; 1420f0b5e634SDaniel Mack } 1421f0b5e634SDaniel Mack return 0; 1422f0b5e634SDaniel Mack } else { 1423f0b5e634SDaniel Mack /* master channel */ 1424eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 1425f0b5e634SDaniel Mack if (err < 0) 14265aeee342STakashi Iwai return filter_error(cval, err); 1427f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1428f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1429f0b5e634SDaniel Mack } 1430f0b5e634SDaniel Mack return 0; 1431f0b5e634SDaniel Mack } 1432f0b5e634SDaniel Mack 1433f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 14346bc170e4SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, 14356bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1436f0b5e634SDaniel Mack { 1437f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1438f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1439f0b5e634SDaniel Mack int changed = 0; 1440f0b5e634SDaniel Mack 1441f0b5e634SDaniel Mack if (cval->cmask) { 1442f0b5e634SDaniel Mack cnt = 0; 1443f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1444f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1445f0b5e634SDaniel Mack continue; 1446eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); 1447f0b5e634SDaniel Mack if (err < 0) 14485aeee342STakashi Iwai return filter_error(cval, err); 1449f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1450f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1451f0b5e634SDaniel Mack if (oval != val) { 1452eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); 1453f0b5e634SDaniel Mack changed = 1; 1454f0b5e634SDaniel Mack } 1455f0b5e634SDaniel Mack cnt++; 1456f0b5e634SDaniel Mack } 1457f0b5e634SDaniel Mack } else { 1458f0b5e634SDaniel Mack /* master channel */ 1459eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); 1460f0b5e634SDaniel Mack if (err < 0) 14615aeee342STakashi Iwai return filter_error(cval, err); 1462f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1463f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1464f0b5e634SDaniel Mack if (val != oval) { 1465eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, 0, 0, val); 1466f0b5e634SDaniel Mack changed = 1; 1467f0b5e634SDaniel Mack } 1468f0b5e634SDaniel Mack } 1469f0b5e634SDaniel Mack return changed; 1470f0b5e634SDaniel Mack } 1471f0b5e634SDaniel Mack 1472568fa7e0SAndrew Chant /* get the boolean value from the master channel of a UAC control */ 1473568fa7e0SAndrew Chant static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol, 14745a222e84SAndrew Chant struct snd_ctl_elem_value *ucontrol) 14755a222e84SAndrew Chant { 14765a222e84SAndrew Chant struct usb_mixer_elem_info *cval = kcontrol->private_data; 14775a222e84SAndrew Chant int val, err; 14785a222e84SAndrew Chant 14795a222e84SAndrew Chant err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 14805a222e84SAndrew Chant if (err < 0) 14815a222e84SAndrew Chant return filter_error(cval, err); 14825a222e84SAndrew Chant val = (val != 0); 14835a222e84SAndrew Chant ucontrol->value.integer.value[0] = val; 14845a222e84SAndrew Chant return 0; 14855a222e84SAndrew Chant } 14865a222e84SAndrew Chant 148769644fcaSKai-Heng Feng static int get_connector_value(struct usb_mixer_elem_info *cval, 148869644fcaSKai-Heng Feng char *name, int *val) 14891d38f5d8SJorge Sanjuan { 14901d38f5d8SJorge Sanjuan struct snd_usb_audio *chip = cval->head.mixer->chip; 149169644fcaSKai-Heng Feng int idx = 0, validx, ret; 14921d38f5d8SJorge Sanjuan 14931d38f5d8SJorge Sanjuan validx = cval->control << 8 | 0; 14941d38f5d8SJorge Sanjuan 14951d38f5d8SJorge Sanjuan ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 14961d38f5d8SJorge Sanjuan if (ret) 14971d38f5d8SJorge Sanjuan goto error; 14981d38f5d8SJorge Sanjuan 14990aef31b7SChris Wulff idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); 15001d38f5d8SJorge Sanjuan if (cval->head.mixer->protocol == UAC_VERSION_2) { 15011d38f5d8SJorge Sanjuan struct uac2_connectors_ctl_blk uac2_conn; 15021d38f5d8SJorge Sanjuan 15031d38f5d8SJorge Sanjuan ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, 15041d38f5d8SJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 15051d38f5d8SJorge Sanjuan validx, idx, &uac2_conn, sizeof(uac2_conn)); 150669644fcaSKai-Heng Feng if (val) 150769644fcaSKai-Heng Feng *val = !!uac2_conn.bNrChannels; 15081d38f5d8SJorge Sanjuan } else { /* UAC_VERSION_3 */ 15091d38f5d8SJorge Sanjuan struct uac3_insertion_ctl_blk uac3_conn; 15101d38f5d8SJorge Sanjuan 15111d38f5d8SJorge Sanjuan ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, 15121d38f5d8SJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 15131d38f5d8SJorge Sanjuan validx, idx, &uac3_conn, sizeof(uac3_conn)); 151469644fcaSKai-Heng Feng if (val) 151569644fcaSKai-Heng Feng *val = !!uac3_conn.bmConInserted; 15161d38f5d8SJorge Sanjuan } 15171d38f5d8SJorge Sanjuan 15181d38f5d8SJorge Sanjuan snd_usb_unlock_shutdown(chip); 15191d38f5d8SJorge Sanjuan 15201d38f5d8SJorge Sanjuan if (ret < 0) { 152169644fcaSKai-Heng Feng if (name && strstr(name, "Speaker")) { 152269644fcaSKai-Heng Feng if (val) 152369644fcaSKai-Heng Feng *val = 1; 1524f8c11eb7SKai-Heng Feng return 0; 1525f8c11eb7SKai-Heng Feng } 15261d38f5d8SJorge Sanjuan error: 15271d38f5d8SJorge Sanjuan usb_audio_err(chip, 15281d38f5d8SJorge Sanjuan "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 15291d38f5d8SJorge Sanjuan UAC_GET_CUR, validx, idx, cval->val_type); 1530*3da4b740STom Rix 1531*3da4b740STom Rix if (val) 1532*3da4b740STom Rix *val = 0; 1533*3da4b740STom Rix 153448cc4297STakashi Iwai return filter_error(cval, ret); 15351d38f5d8SJorge Sanjuan } 15361d38f5d8SJorge Sanjuan 153769644fcaSKai-Heng Feng return ret; 153869644fcaSKai-Heng Feng } 153969644fcaSKai-Heng Feng 154069644fcaSKai-Heng Feng /* get the connectors status and report it as boolean type */ 154169644fcaSKai-Heng Feng static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol, 154269644fcaSKai-Heng Feng struct snd_ctl_elem_value *ucontrol) 154369644fcaSKai-Heng Feng { 154469644fcaSKai-Heng Feng struct usb_mixer_elem_info *cval = kcontrol->private_data; 154569644fcaSKai-Heng Feng int ret, val; 154669644fcaSKai-Heng Feng 154769644fcaSKai-Heng Feng ret = get_connector_value(cval, kcontrol->id.name, &val); 154869644fcaSKai-Heng Feng 154969644fcaSKai-Heng Feng if (ret < 0) 155069644fcaSKai-Heng Feng return ret; 155169644fcaSKai-Heng Feng 15521d38f5d8SJorge Sanjuan ucontrol->value.integer.value[0] = val; 15531d38f5d8SJorge Sanjuan return 0; 15541d38f5d8SJorge Sanjuan } 15551d38f5d8SJorge Sanjuan 1556195727e8STakashi Iwai static const struct snd_kcontrol_new usb_feature_unit_ctl = { 1557f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1558f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1559f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1560f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1561f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1562f0b5e634SDaniel Mack }; 1563f0b5e634SDaniel Mack 156423caaf19SDaniel Mack /* the read-only variant */ 15658fdaebbbSBhumika Goyal static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 156623caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 156723caaf19SDaniel Mack .name = "", /* will be filled later manually */ 156823caaf19SDaniel Mack .info = mixer_ctl_feature_info, 156923caaf19SDaniel Mack .get = mixer_ctl_feature_get, 157023caaf19SDaniel Mack .put = NULL, 157123caaf19SDaniel Mack }; 157223caaf19SDaniel Mack 1573568fa7e0SAndrew Chant /* 1574568fa7e0SAndrew Chant * A control which shows the boolean value from reading a UAC control on 1575568fa7e0SAndrew Chant * the master channel. 1576568fa7e0SAndrew Chant */ 1577195727e8STakashi Iwai static const struct snd_kcontrol_new usb_bool_master_control_ctl_ro = { 15785a222e84SAndrew Chant .iface = SNDRV_CTL_ELEM_IFACE_CARD, 15795a222e84SAndrew Chant .name = "", /* will be filled later manually */ 15805a222e84SAndrew Chant .access = SNDRV_CTL_ELEM_ACCESS_READ, 15815a222e84SAndrew Chant .info = snd_ctl_boolean_mono_info, 1582568fa7e0SAndrew Chant .get = mixer_ctl_master_bool_get, 15835a222e84SAndrew Chant .put = NULL, 15845a222e84SAndrew Chant }; 15855a222e84SAndrew Chant 15861d38f5d8SJorge Sanjuan static const struct snd_kcontrol_new usb_connector_ctl_ro = { 15871d38f5d8SJorge Sanjuan .iface = SNDRV_CTL_ELEM_IFACE_CARD, 15881d38f5d8SJorge Sanjuan .name = "", /* will be filled later manually */ 15891d38f5d8SJorge Sanjuan .access = SNDRV_CTL_ELEM_ACCESS_READ, 15901d38f5d8SJorge Sanjuan .info = snd_ctl_boolean_mono_info, 15911d38f5d8SJorge Sanjuan .get = mixer_ctl_connector_get, 15921d38f5d8SJorge Sanjuan .put = NULL, 15931d38f5d8SJorge Sanjuan }; 15941d38f5d8SJorge Sanjuan 15956bc170e4SDaniel Mack /* 15966bc170e4SDaniel Mack * This symbol is exported in order to allow the mixer quirks to 15976bc170e4SDaniel Mack * hook up to the standard feature unit control mechanism 15986bc170e4SDaniel Mack */ 1599195727e8STakashi Iwai const struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1600f0b5e634SDaniel Mack 1601f0b5e634SDaniel Mack /* 1602f0b5e634SDaniel Mack * build a feature control 1603f0b5e634SDaniel Mack */ 1604f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1605f0b5e634SDaniel Mack { 1606f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1607f0b5e634SDaniel Mack } 1608f0b5e634SDaniel Mack 16096bc170e4SDaniel Mack /* 16106bc170e4SDaniel Mack * A lot of headsets/headphones have a "Speaker" mixer. Make sure we 16116bc170e4SDaniel Mack * rename it to "Headphone". We determine if something is a headphone 16126bc170e4SDaniel Mack * similar to how udev determines form factor. 16136bc170e4SDaniel Mack */ 16149b4ef977SDavid Henningsson static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, 16159b4ef977SDavid Henningsson struct snd_card *card) 16169b4ef977SDavid Henningsson { 1617d1254593SColin Ian King static const char * const names_to_check[] = { 16189b4ef977SDavid Henningsson "Headset", "headset", "Headphone", "headphone", NULL}; 1619d1254593SColin Ian King const char * const *s; 1620e0f17c75SPeter Senna Tschudin bool found = false; 16219b4ef977SDavid Henningsson 16229b4ef977SDavid Henningsson if (strcmp("Speaker", kctl->id.name)) 16239b4ef977SDavid Henningsson return; 16249b4ef977SDavid Henningsson 16259b4ef977SDavid Henningsson for (s = names_to_check; *s; s++) 16269b4ef977SDavid Henningsson if (strstr(card->shortname, *s)) { 1627e0f17c75SPeter Senna Tschudin found = true; 16289b4ef977SDavid Henningsson break; 16299b4ef977SDavid Henningsson } 16309b4ef977SDavid Henningsson 16319b4ef977SDavid Henningsson if (!found) 16329b4ef977SDavid Henningsson return; 16339b4ef977SDavid Henningsson 163475b1a8f9SJoe Perches strscpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); 16359b4ef977SDavid Henningsson } 16369b4ef977SDavid Henningsson 1637a01df925STakashi Iwai static const struct usb_feature_control_info *get_feature_control_info(int control) 163821e9b3e9SAndrew Chant { 163921e9b3e9SAndrew Chant int i; 164021e9b3e9SAndrew Chant 164121e9b3e9SAndrew Chant for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) { 164221e9b3e9SAndrew Chant if (audio_feature_info[i].control == control) 164321e9b3e9SAndrew Chant return &audio_feature_info[i]; 164421e9b3e9SAndrew Chant } 164521e9b3e9SAndrew Chant return NULL; 164621e9b3e9SAndrew Chant } 164721e9b3e9SAndrew Chant 164817156f23SRuslan Bilovol static void __build_feature_ctl(struct usb_mixer_interface *mixer, 164917156f23SRuslan Bilovol const struct usbmix_name_map *imap, 1650f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 165117156f23SRuslan Bilovol struct usb_audio_term *iterm, 165217156f23SRuslan Bilovol struct usb_audio_term *oterm, 165317156f23SRuslan Bilovol int unitid, int nameid, int readonly_mask) 1654f0b5e634SDaniel Mack { 1655a01df925STakashi Iwai const struct usb_feature_control_info *ctl_info; 1656f0b5e634SDaniel Mack unsigned int len = 0; 1657f0b5e634SDaniel Mack int mapped_name = 0; 1658f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1659f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1660f0b5e634SDaniel Mack const struct usbmix_name_map *map; 166180acefffSAlexey Fisher unsigned int range; 1662f0b5e634SDaniel Mack 166365f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1664f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1665f0b5e634SDaniel Mack return; 1666f0b5e634SDaniel Mack } 1667f0b5e634SDaniel Mack 166817156f23SRuslan Bilovol map = find_map(imap, unitid, control); 1669f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1670f0b5e634SDaniel Mack return; 1671f0b5e634SDaniel Mack 1672f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1673a860d95fSDaniel Mack if (!cval) 1674f0b5e634SDaniel Mack return; 167517156f23SRuslan Bilovol snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); 1676f0b5e634SDaniel Mack cval->control = control; 1677f0b5e634SDaniel Mack cval->cmask = ctl_mask; 167821e9b3e9SAndrew Chant 167921e9b3e9SAndrew Chant ctl_info = get_feature_control_info(control); 168062376025SColin Ian King if (!ctl_info) { 168152c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 168221e9b3e9SAndrew Chant return; 168362376025SColin Ian King } 168417156f23SRuslan Bilovol if (mixer->protocol == UAC_VERSION_1) 1685bc18e31cSJulian Scheel cval->val_type = ctl_info->type; 1686bc18e31cSJulian Scheel else /* UAC_VERSION_2 */ 1687bc18e31cSJulian Scheel cval->val_type = ctl_info->type_uac2 >= 0 ? 1688bc18e31cSJulian Scheel ctl_info->type_uac2 : ctl_info->type; 1689bc18e31cSJulian Scheel 1690a6a33259SDaniel Mack if (ctl_mask == 0) { 1691f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1692a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1693a6a33259SDaniel Mack } else { 1694f0b5e634SDaniel Mack int i, c = 0; 1695f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1696f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1697f0b5e634SDaniel Mack c++; 1698f0b5e634SDaniel Mack cval->channels = c; 1699a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1700f0b5e634SDaniel Mack } 1701f0b5e634SDaniel Mack 17026bc170e4SDaniel Mack /* 17036bc170e4SDaniel Mack * If all channels in the mask are marked read-only, make the control 1704eef90451SChris J Arges * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't 17056bc170e4SDaniel Mack * issue write commands to read-only channels. 17066bc170e4SDaniel Mack */ 1707a6a33259SDaniel Mack if (cval->channels == readonly_mask) 170823caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 170923caaf19SDaniel Mack else 1710f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 171123caaf19SDaniel Mack 1712f0b5e634SDaniel Mack if (!kctl) { 171317156f23SRuslan Bilovol usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); 171452c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 1715f0b5e634SDaniel Mack return; 1716f0b5e634SDaniel Mack } 1717eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1718f0b5e634SDaniel Mack 1719f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1720f0b5e634SDaniel Mack mapped_name = len != 0; 1721f0b5e634SDaniel Mack if (!len && nameid) 172217156f23SRuslan Bilovol len = snd_usb_copy_string_desc(mixer->chip, nameid, 1723f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1724f0b5e634SDaniel Mack 1725f0b5e634SDaniel Mack switch (control) { 172665f25da4SDaniel Mack case UAC_FU_MUTE: 172765f25da4SDaniel Mack case UAC_FU_VOLUME: 17286bc170e4SDaniel Mack /* 17296bc170e4SDaniel Mack * determine the control name. the rule is: 1730f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1731f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1732f0b5e634SDaniel Mack * of terminal type. 1733f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1734f0b5e634SDaniel Mack * - otherwise, anonymous name. 1735f0b5e634SDaniel Mack */ 1736f0b5e634SDaniel Mack if (!len) { 173717156f23SRuslan Bilovol if (iterm) 173817156f23SRuslan Bilovol len = get_term_name(mixer->chip, iterm, 173917156f23SRuslan Bilovol kctl->id.name, 17406bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 174117156f23SRuslan Bilovol if (!len && oterm) 174217156f23SRuslan Bilovol len = get_term_name(mixer->chip, oterm, 17436bc170e4SDaniel Mack kctl->id.name, 17446bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1745f0b5e634SDaniel Mack if (!len) 174649fd46d2SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1747f0b5e634SDaniel Mack "Feature %d", unitid); 1748f0b5e634SDaniel Mack } 17499b4ef977SDavid Henningsson 17509b4ef977SDavid Henningsson if (!mapped_name) 175117156f23SRuslan Bilovol check_no_speaker_on_headset(kctl, mixer->chip->card); 17529b4ef977SDavid Henningsson 17536bc170e4SDaniel Mack /* 17546bc170e4SDaniel Mack * determine the stream direction: 1755f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1756f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1757f0b5e634SDaniel Mack */ 175817156f23SRuslan Bilovol if (!mapped_name && oterm && !(oterm->type >> 16)) { 175917156f23SRuslan Bilovol if ((oterm->type & 0xff00) == 0x0100) 176049fd46d2SDaniel Mack append_ctl_name(kctl, " Capture"); 17616bc170e4SDaniel Mack else 176249fd46d2SDaniel Mack append_ctl_name(kctl, " Playback"); 1763f0b5e634SDaniel Mack } 176465f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1765f0b5e634SDaniel Mack " Switch" : " Volume"); 1766e182534dSTakashi Iwai break; 1767e182534dSTakashi Iwai default: 1768e182534dSTakashi Iwai if (!len) 176975b1a8f9SJoe Perches strscpy(kctl->id.name, audio_feature_info[control-1].name, 1770e182534dSTakashi Iwai sizeof(kctl->id.name)); 1771e182534dSTakashi Iwai break; 1772e182534dSTakashi Iwai } 1773e182534dSTakashi Iwai 1774e182534dSTakashi Iwai /* get min/max values */ 1775e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1776e182534dSTakashi Iwai 1777e9a0ef0bSTakashi Iwai /* skip a bogus volume range */ 1778e9a0ef0bSTakashi Iwai if (cval->max <= cval->min) { 1779e9a0ef0bSTakashi Iwai usb_audio_dbg(mixer->chip, 1780e9a0ef0bSTakashi Iwai "[%d] FU [%s] skipped due to invalid volume\n", 1781e9a0ef0bSTakashi Iwai cval->head.id, kctl->id.name); 1782e9a0ef0bSTakashi Iwai snd_ctl_free_one(kctl); 1783e9a0ef0bSTakashi Iwai return; 1784e9a0ef0bSTakashi Iwai } 1785e9a0ef0bSTakashi Iwai 1786e9a0ef0bSTakashi Iwai 178765f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 178859bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 178938b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1790285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1791f0b5e634SDaniel Mack kctl->vd[0].access |= 1792f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1793f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 179459bb7f0eSTakashi Iwai } 1795f0b5e634SDaniel Mack } 1796f0b5e634SDaniel Mack 179717156f23SRuslan Bilovol snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl); 179842e3121dSAnssi Hannula 179980acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 18006bc170e4SDaniel Mack /* 18016bc170e4SDaniel Mack * Are there devices with volume range more than 255? I use a bit more 180280acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 180380acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 180480acefffSAlexey Fisher */ 180580acefffSAlexey Fisher if (range > 384) { 180617156f23SRuslan Bilovol usb_audio_warn(mixer->chip, 180782c1cf0aSMichał Mirosław "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", 180880acefffSAlexey Fisher range); 180917156f23SRuslan Bilovol usb_audio_warn(mixer->chip, 181082c1cf0aSMichał Mirosław "[%d] FU [%s] ch = %d, val = %d/%d/%d", 18113360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 181280acefffSAlexey Fisher cval->min, cval->max, cval->res); 181380acefffSAlexey Fisher } 181480acefffSAlexey Fisher 181517156f23SRuslan Bilovol usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 18163360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 18176bc170e4SDaniel Mack cval->min, cval->max, cval->res); 18183360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1819f0b5e634SDaniel Mack } 1820f0b5e634SDaniel Mack 182117156f23SRuslan Bilovol static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 182217156f23SRuslan Bilovol unsigned int ctl_mask, int control, 182317156f23SRuslan Bilovol struct usb_audio_term *iterm, int unitid, 182417156f23SRuslan Bilovol int readonly_mask) 182517156f23SRuslan Bilovol { 182617156f23SRuslan Bilovol struct uac_feature_unit_descriptor *desc = raw_desc; 182717156f23SRuslan Bilovol int nameid = uac_feature_unit_iFeature(desc); 182817156f23SRuslan Bilovol 182917156f23SRuslan Bilovol __build_feature_ctl(state->mixer, state->map, ctl_mask, control, 183017156f23SRuslan Bilovol iterm, &state->oterm, unitid, nameid, readonly_mask); 183117156f23SRuslan Bilovol } 183217156f23SRuslan Bilovol 183317156f23SRuslan Bilovol static void build_feature_ctl_badd(struct usb_mixer_interface *mixer, 183417156f23SRuslan Bilovol unsigned int ctl_mask, int control, int unitid, 183517156f23SRuslan Bilovol const struct usbmix_name_map *badd_map) 183617156f23SRuslan Bilovol { 183717156f23SRuslan Bilovol __build_feature_ctl(mixer, badd_map, ctl_mask, control, 183817156f23SRuslan Bilovol NULL, NULL, unitid, 0, 0); 183917156f23SRuslan Bilovol } 184017156f23SRuslan Bilovol 1841167e1fb1SJorge Sanjuan static void get_connector_control_name(struct usb_mixer_interface *mixer, 18425a222e84SAndrew Chant struct usb_audio_term *term, 18435a222e84SAndrew Chant bool is_input, char *name, int name_size) 18445a222e84SAndrew Chant { 1845167e1fb1SJorge Sanjuan int name_len = get_term_name(mixer->chip, term, name, name_size, 0); 18465a222e84SAndrew Chant 18475a222e84SAndrew Chant if (name_len == 0) 184875b1a8f9SJoe Perches strscpy(name, "Unknown", name_size); 18495a222e84SAndrew Chant 18505a222e84SAndrew Chant /* 18515a222e84SAndrew Chant * sound/core/ctljack.c has a convention of naming jack controls 18525a222e84SAndrew Chant * by ending in " Jack". Make it slightly more useful by 18535a222e84SAndrew Chant * indicating Input or Output after the terminal name. 18545a222e84SAndrew Chant */ 18555a222e84SAndrew Chant if (is_input) 18565a222e84SAndrew Chant strlcat(name, " - Input Jack", name_size); 18575a222e84SAndrew Chant else 18585a222e84SAndrew Chant strlcat(name, " - Output Jack", name_size); 18595a222e84SAndrew Chant } 18605a222e84SAndrew Chant 18618dde723fSTakashi Iwai /* get connector value to "wake up" the USB audio */ 18628dde723fSTakashi Iwai static int connector_mixer_resume(struct usb_mixer_elem_list *list) 18638dde723fSTakashi Iwai { 18648dde723fSTakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 18658dde723fSTakashi Iwai 18668dde723fSTakashi Iwai get_connector_value(cval, NULL, NULL); 18678dde723fSTakashi Iwai return 0; 18688dde723fSTakashi Iwai } 18698dde723fSTakashi Iwai 18705a222e84SAndrew Chant /* Build a mixer control for a UAC connector control (jack-detect) */ 1871167e1fb1SJorge Sanjuan static void build_connector_control(struct usb_mixer_interface *mixer, 1872934b9659STakashi Iwai const struct usbmix_name_map *imap, 18735a222e84SAndrew Chant struct usb_audio_term *term, bool is_input) 18745a222e84SAndrew Chant { 18755a222e84SAndrew Chant struct snd_kcontrol *kctl; 18765a222e84SAndrew Chant struct usb_mixer_elem_info *cval; 1877a43c1c41STakashi Iwai const struct usbmix_name_map *map; 18785a222e84SAndrew Chant 1879a43c1c41STakashi Iwai map = find_map(imap, term->id, 0); 1880a43c1c41STakashi Iwai if (check_ignored_ctl(map)) 1881934b9659STakashi Iwai return; 1882934b9659STakashi Iwai 18835a222e84SAndrew Chant cval = kzalloc(sizeof(*cval), GFP_KERNEL); 18845a222e84SAndrew Chant if (!cval) 18855a222e84SAndrew Chant return; 1886167e1fb1SJorge Sanjuan snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id); 18878dde723fSTakashi Iwai 18888dde723fSTakashi Iwai /* set up a specific resume callback */ 18898dde723fSTakashi Iwai cval->head.resume = connector_mixer_resume; 18908dde723fSTakashi Iwai 1891568fa7e0SAndrew Chant /* 18921d38f5d8SJorge Sanjuan * UAC2: The first byte from reading the UAC2_TE_CONNECTOR control returns the 18931d38f5d8SJorge Sanjuan * number of channels connected. 18941d38f5d8SJorge Sanjuan * 18951d38f5d8SJorge Sanjuan * UAC3: The first byte specifies size of bitmap for the inserted controls. The 18961d38f5d8SJorge Sanjuan * following byte(s) specifies which connectors are inserted. 18971d38f5d8SJorge Sanjuan * 18981d38f5d8SJorge Sanjuan * This boolean ctl will simply report if any channels are connected 18991d38f5d8SJorge Sanjuan * or not. 1900568fa7e0SAndrew Chant */ 1901167e1fb1SJorge Sanjuan if (mixer->protocol == UAC_VERSION_2) 19025a222e84SAndrew Chant cval->control = UAC2_TE_CONNECTOR; 19031d38f5d8SJorge Sanjuan else /* UAC_VERSION_3 */ 19041d38f5d8SJorge Sanjuan cval->control = UAC3_TE_INSERTION; 19051d38f5d8SJorge Sanjuan 19065a222e84SAndrew Chant cval->val_type = USB_MIXER_BOOLEAN; 19075a222e84SAndrew Chant cval->channels = 1; /* report true if any channel is connected */ 19085a222e84SAndrew Chant cval->min = 0; 19095a222e84SAndrew Chant cval->max = 1; 19101d38f5d8SJorge Sanjuan kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval); 19115a222e84SAndrew Chant if (!kctl) { 1912167e1fb1SJorge Sanjuan usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); 191352c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 19145a222e84SAndrew Chant return; 19155a222e84SAndrew Chant } 1916a43c1c41STakashi Iwai 1917a43c1c41STakashi Iwai if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) 1918a43c1c41STakashi Iwai strlcat(kctl->id.name, " Jack", sizeof(kctl->id.name)); 1919a43c1c41STakashi Iwai else 1920167e1fb1SJorge Sanjuan get_connector_control_name(mixer, term, is_input, kctl->id.name, 19215a222e84SAndrew Chant sizeof(kctl->id.name)); 19225a222e84SAndrew Chant kctl->private_free = snd_usb_mixer_elem_free; 19235a222e84SAndrew Chant snd_usb_mixer_add_control(&cval->head, kctl); 19245a222e84SAndrew Chant } 19255a222e84SAndrew Chant 1926cddaafb9SDaniel Mack static int parse_clock_source_unit(struct mixer_build *state, int unitid, 1927cddaafb9SDaniel Mack void *_ftr) 1928cddaafb9SDaniel Mack { 1929cddaafb9SDaniel Mack struct uac_clock_source_descriptor *hdr = _ftr; 1930cddaafb9SDaniel Mack struct usb_mixer_elem_info *cval; 1931cddaafb9SDaniel Mack struct snd_kcontrol *kctl; 1932cddaafb9SDaniel Mack char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 1933cddaafb9SDaniel Mack int ret; 1934cddaafb9SDaniel Mack 1935cddaafb9SDaniel Mack if (state->mixer->protocol != UAC_VERSION_2) 1936cddaafb9SDaniel Mack return -EINVAL; 1937cddaafb9SDaniel Mack 1938cddaafb9SDaniel Mack /* 1939cddaafb9SDaniel Mack * The only property of this unit we are interested in is the 1940cddaafb9SDaniel Mack * clock source validity. If that isn't readable, just bail out. 1941cddaafb9SDaniel Mack */ 19429a2fe9b8SRuslan Bilovol if (!uac_v2v3_control_is_readable(hdr->bmControls, 194321e9b3e9SAndrew Chant UAC2_CS_CONTROL_CLOCK_VALID)) 1944cddaafb9SDaniel Mack return 0; 1945cddaafb9SDaniel Mack 1946cddaafb9SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1947cddaafb9SDaniel Mack if (!cval) 1948cddaafb9SDaniel Mack return -ENOMEM; 1949cddaafb9SDaniel Mack 1950cddaafb9SDaniel Mack snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); 1951cddaafb9SDaniel Mack 1952cddaafb9SDaniel Mack cval->min = 0; 1953cddaafb9SDaniel Mack cval->max = 1; 1954cddaafb9SDaniel Mack cval->channels = 1; 1955cddaafb9SDaniel Mack cval->val_type = USB_MIXER_BOOLEAN; 1956cddaafb9SDaniel Mack cval->control = UAC2_CS_CONTROL_CLOCK_VALID; 1957cddaafb9SDaniel Mack 1958cddaafb9SDaniel Mack cval->master_readonly = 1; 1959568fa7e0SAndrew Chant /* From UAC2 5.2.5.1.2 "Only the get request is supported." */ 1960568fa7e0SAndrew Chant kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval); 1961cddaafb9SDaniel Mack 1962cddaafb9SDaniel Mack if (!kctl) { 196352c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 1964cddaafb9SDaniel Mack return -ENOMEM; 1965cddaafb9SDaniel Mack } 1966cddaafb9SDaniel Mack 1967cddaafb9SDaniel Mack kctl->private_free = snd_usb_mixer_elem_free; 1968eccfc1b8SRuslan Bilovol ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource, 1969cddaafb9SDaniel Mack name, sizeof(name)); 1970cddaafb9SDaniel Mack if (ret > 0) 1971cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1972cddaafb9SDaniel Mack "%s Validity", name); 1973cddaafb9SDaniel Mack else 1974cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1975cddaafb9SDaniel Mack "Clock Source %d Validity", hdr->bClockID); 1976cddaafb9SDaniel Mack 1977cddaafb9SDaniel Mack return snd_usb_mixer_add_control(&cval->head, kctl); 1978cddaafb9SDaniel Mack } 1979cddaafb9SDaniel Mack 1980f0b5e634SDaniel Mack /* 1981f0b5e634SDaniel Mack * parse a feature unit 1982f0b5e634SDaniel Mack * 198325985edcSLucas De Marchi * most of controls are defined here. 1984f0b5e634SDaniel Mack */ 19856bc170e4SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, 19866bc170e4SDaniel Mack void *_ftr) 1987f0b5e634SDaniel Mack { 1988f0b5e634SDaniel Mack int channels, i, j; 1989f0b5e634SDaniel Mack struct usb_audio_term iterm; 199036c346e1SYueHaibing unsigned int master_bits; 1991f0b5e634SDaniel Mack int err, csize; 199223caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 199323caaf19SDaniel Mack __u8 *bmaControls; 1994f0b5e634SDaniel Mack 199523caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 199623caaf19SDaniel Mack csize = hdr->bControlSize; 199723caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 199823caaf19SDaniel Mack bmaControls = hdr->bmaControls; 19999a2fe9b8SRuslan Bilovol } else if (state->mixer->protocol == UAC_VERSION_2) { 200023caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 200123caaf19SDaniel Mack csize = 4; 2002e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 200323caaf19SDaniel Mack bmaControls = ftr->bmaControls; 20049a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 20059a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *ftr = _ftr; 20069a2fe9b8SRuslan Bilovol 20079a2fe9b8SRuslan Bilovol csize = 4; 20089a2fe9b8SRuslan Bilovol channels = (ftr->bLength - 7) / 4 - 1; 20099a2fe9b8SRuslan Bilovol bmaControls = ftr->bmaControls; 2010d56268fbSClemens Ladisch } 2011f0b5e634SDaniel Mack 2012f0b5e634SDaniel Mack /* parse the source unit */ 2013f25ecf8fSTakashi Iwai err = parse_audio_unit(state, hdr->bSourceID); 2014f25ecf8fSTakashi Iwai if (err < 0) 2015f0b5e634SDaniel Mack return err; 2016f0b5e634SDaniel Mack 2017f0b5e634SDaniel Mack /* determine the input source type and name */ 20184d7b86c9SDaniel Mack err = check_input_term(state, hdr->bSourceID, &iterm); 20194d7b86c9SDaniel Mack if (err < 0) 20204d7b86c9SDaniel Mack return err; 2021f0b5e634SDaniel Mack 202223caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 2023f0b5e634SDaniel Mack /* master configuration quirks */ 2024f0b5e634SDaniel Mack switch (state->chip->usb_id) { 2025f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 20260ba41d91STakashi Iwai usb_audio_info(state->chip, 2027f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 2028f0b5e634SDaniel Mack /* disable non-functional volume control */ 202965f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 2030f0b5e634SDaniel Mack break; 2031c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 20320ba41d91STakashi Iwai usb_audio_info(state->chip, 2033c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 2034c1051439SDavid Henningsson /* disable non-functional volume control */ 2035c1051439SDavid Henningsson channels = 0; 2036c1051439SDavid Henningsson break; 2037c1051439SDavid Henningsson 2038f0b5e634SDaniel Mack } 203923caaf19SDaniel Mack 204023caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 2041f0b5e634SDaniel Mack /* check all control types */ 2042f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 2043f0b5e634SDaniel Mack unsigned int ch_bits = 0; 204421e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 204521e9b3e9SAndrew Chant 2046f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 20476bc170e4SDaniel Mack unsigned int mask; 20486bc170e4SDaniel Mack 20496bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 20506bc170e4SDaniel Mack csize * (j+1), csize); 2051f0b5e634SDaniel Mack if (mask & (1 << i)) 2052f0b5e634SDaniel Mack ch_bits |= (1 << j); 2053f0b5e634SDaniel Mack } 205423caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 20556bc170e4SDaniel Mack 20566bc170e4SDaniel Mack /* 20576bc170e4SDaniel Mack * The first channel must be set 20586bc170e4SDaniel Mack * (for ease of programming). 20596bc170e4SDaniel Mack */ 20606bc170e4SDaniel Mack if (ch_bits & 1) 206121e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 20626bc170e4SDaniel Mack &iterm, unitid, 0); 2063f0b5e634SDaniel Mack if (master_bits & (1 << i)) 206421e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, 0, control, 206521e9b3e9SAndrew Chant &iterm, unitid, 0); 206623caaf19SDaniel Mack } 20679a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 2068d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 206923caaf19SDaniel Mack unsigned int ch_bits = 0; 207023caaf19SDaniel Mack unsigned int ch_read_only = 0; 207121e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 207223caaf19SDaniel Mack 207323caaf19SDaniel Mack for (j = 0; j < channels; j++) { 20746bc170e4SDaniel Mack unsigned int mask; 20756bc170e4SDaniel Mack 20766bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 20776bc170e4SDaniel Mack csize * (j+1), csize); 207821e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(mask, control)) { 207923caaf19SDaniel Mack ch_bits |= (1 << j); 208021e9b3e9SAndrew Chant if (!uac_v2v3_control_is_writeable(mask, control)) 208123caaf19SDaniel Mack ch_read_only |= (1 << j); 208223caaf19SDaniel Mack } 208323caaf19SDaniel Mack } 208423caaf19SDaniel Mack 20856bc170e4SDaniel Mack /* 20866bc170e4SDaniel Mack * NOTE: build_feature_ctl() will mark the control 20876bc170e4SDaniel Mack * read-only if all channels are marked read-only in 20886bc170e4SDaniel Mack * the descriptors. Otherwise, the control will be 20896bc170e4SDaniel Mack * reported as writeable, but the driver will not 20906bc170e4SDaniel Mack * actually issue a write command for read-only 20916bc170e4SDaniel Mack * channels. 20926bc170e4SDaniel Mack */ 20936bc170e4SDaniel Mack 20946bc170e4SDaniel Mack /* 20956bc170e4SDaniel Mack * The first channel must be set 20966bc170e4SDaniel Mack * (for ease of programming). 20976bc170e4SDaniel Mack */ 20986bc170e4SDaniel Mack if (ch_bits & 1) 209921e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 21006bc170e4SDaniel Mack &iterm, unitid, ch_read_only); 210121e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(master_bits, control)) 21022de841efSTakashi Iwai build_feature_ctl(state, _ftr, 0, control, 21032de841efSTakashi Iwai &iterm, unitid, 210421e9b3e9SAndrew Chant !uac_v2v3_control_is_writeable(master_bits, 210521e9b3e9SAndrew Chant control)); 210623caaf19SDaniel Mack } 2107f0b5e634SDaniel Mack } 2108f0b5e634SDaniel Mack 2109f0b5e634SDaniel Mack return 0; 2110f0b5e634SDaniel Mack } 2111f0b5e634SDaniel Mack 2112f0b5e634SDaniel Mack /* 2113f0b5e634SDaniel Mack * Mixer Unit 2114f0b5e634SDaniel Mack */ 2115f0b5e634SDaniel Mack 2116f9f0e9edSTakashi Iwai /* check whether the given in/out overflows bmMixerControls matrix */ 2117f9f0e9edSTakashi Iwai static bool mixer_bitmap_overflow(struct uac_mixer_unit_descriptor *desc, 2118f9f0e9edSTakashi Iwai int protocol, int num_ins, int num_outs) 2119f9f0e9edSTakashi Iwai { 2120f9f0e9edSTakashi Iwai u8 *hdr = (u8 *)desc; 2121f9f0e9edSTakashi Iwai u8 *c = uac_mixer_unit_bmControls(desc, protocol); 2122f9f0e9edSTakashi Iwai size_t rest; /* remaining bytes after bmMixerControls */ 2123f9f0e9edSTakashi Iwai 2124f9f0e9edSTakashi Iwai switch (protocol) { 2125f9f0e9edSTakashi Iwai case UAC_VERSION_1: 2126f9f0e9edSTakashi Iwai default: 2127f9f0e9edSTakashi Iwai rest = 1; /* iMixer */ 2128f9f0e9edSTakashi Iwai break; 2129f9f0e9edSTakashi Iwai case UAC_VERSION_2: 2130f9f0e9edSTakashi Iwai rest = 2; /* bmControls + iMixer */ 2131f9f0e9edSTakashi Iwai break; 2132f9f0e9edSTakashi Iwai case UAC_VERSION_3: 2133f9f0e9edSTakashi Iwai rest = 6; /* bmControls + wMixerDescrStr */ 2134f9f0e9edSTakashi Iwai break; 2135f9f0e9edSTakashi Iwai } 2136f9f0e9edSTakashi Iwai 2137f9f0e9edSTakashi Iwai /* overflow? */ 2138f9f0e9edSTakashi Iwai return c + (num_ins * num_outs + 7) / 8 + rest > hdr + hdr[0]; 2139f9f0e9edSTakashi Iwai } 2140f9f0e9edSTakashi Iwai 2141f0b5e634SDaniel Mack /* 2142f0b5e634SDaniel Mack * build a mixer unit control 2143f0b5e634SDaniel Mack * 2144f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 2145f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 2146f0b5e634SDaniel Mack */ 214799fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 214899fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 21496cfd839aSJorge Sanjuan int in_pin, int in_ch, int num_outs, 21506cfd839aSJorge Sanjuan int unitid, struct usb_audio_term *iterm) 2151f0b5e634SDaniel Mack { 2152f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2153f0b5e634SDaniel Mack unsigned int i, len; 2154f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2155f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2156f0b5e634SDaniel Mack 215717156f23SRuslan Bilovol map = find_map(state->map, unitid, 0); 2158f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2159f0b5e634SDaniel Mack return; 2160f0b5e634SDaniel Mack 2161f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2162f0b5e634SDaniel Mack if (!cval) 2163f0b5e634SDaniel Mack return; 2164f0b5e634SDaniel Mack 21653360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2166f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 2167f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 2168f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 21696bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); 21706bc170e4SDaniel Mack 21716bc170e4SDaniel Mack if (check_matrix_bitmap(c, in_ch, i, num_outs)) { 2172f0b5e634SDaniel Mack cval->cmask |= (1 << i); 2173f0b5e634SDaniel Mack cval->channels++; 2174f0b5e634SDaniel Mack } 2175f0b5e634SDaniel Mack } 2176f0b5e634SDaniel Mack 2177f0b5e634SDaniel Mack /* get min/max values */ 2178f0b5e634SDaniel Mack get_min_max(cval, 0); 2179f0b5e634SDaniel Mack 2180f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 2181f0b5e634SDaniel Mack if (!kctl) { 21820ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 218352c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 2184f0b5e634SDaniel Mack return; 2185f0b5e634SDaniel Mack } 2186eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2187f0b5e634SDaniel Mack 2188f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 2189f0b5e634SDaniel Mack if (!len) 2190eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, iterm, kctl->id.name, 21916bc170e4SDaniel Mack sizeof(kctl->id.name), 0); 2192f0b5e634SDaniel Mack if (!len) 2193f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 2194f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 2195f0b5e634SDaniel Mack 21960ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", 21973360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); 21983360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 2199f0b5e634SDaniel Mack } 2200f0b5e634SDaniel Mack 22015a222e84SAndrew Chant static int parse_audio_input_terminal(struct mixer_build *state, int unitid, 22025a222e84SAndrew Chant void *raw_desc) 22035a222e84SAndrew Chant { 22045a222e84SAndrew Chant struct usb_audio_term iterm; 22051d38f5d8SJorge Sanjuan unsigned int control, bmctls, term_id; 22065a222e84SAndrew Chant 22075a222e84SAndrew Chant if (state->mixer->protocol == UAC_VERSION_2) { 22081d38f5d8SJorge Sanjuan struct uac2_input_terminal_descriptor *d_v2 = raw_desc; 22091d38f5d8SJorge Sanjuan control = UAC2_TE_CONNECTOR; 22101d38f5d8SJorge Sanjuan term_id = d_v2->bTerminalID; 22111d38f5d8SJorge Sanjuan bmctls = le16_to_cpu(d_v2->bmControls); 22121d38f5d8SJorge Sanjuan } else if (state->mixer->protocol == UAC_VERSION_3) { 22131d38f5d8SJorge Sanjuan struct uac3_input_terminal_descriptor *d_v3 = raw_desc; 22141d38f5d8SJorge Sanjuan control = UAC3_TE_INSERTION; 22151d38f5d8SJorge Sanjuan term_id = d_v3->bTerminalID; 22161d38f5d8SJorge Sanjuan bmctls = le32_to_cpu(d_v3->bmControls); 22171d38f5d8SJorge Sanjuan } else { 22181d38f5d8SJorge Sanjuan return 0; /* UAC1. No Insertion control */ 22191d38f5d8SJorge Sanjuan } 22201d38f5d8SJorge Sanjuan 22211d38f5d8SJorge Sanjuan check_input_term(state, term_id, &iterm); 22221d38f5d8SJorge Sanjuan 22235a222e84SAndrew Chant /* Check for jack detection. */ 22247dc3c5a0STakashi Iwai if ((iterm.type & 0xff00) != 0x0100 && 22257dc3c5a0STakashi Iwai uac_v2v3_control_is_readable(bmctls, control)) 2226934b9659STakashi Iwai build_connector_control(state->mixer, state->map, &iterm, true); 22271d38f5d8SJorge Sanjuan 22285a222e84SAndrew Chant return 0; 22295a222e84SAndrew Chant } 22305a222e84SAndrew Chant 2231f0b5e634SDaniel Mack /* 2232f0b5e634SDaniel Mack * parse a mixer unit 2233f0b5e634SDaniel Mack */ 22346bc170e4SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, 22356bc170e4SDaniel Mack void *raw_desc) 2236f0b5e634SDaniel Mack { 223799fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 2238f0b5e634SDaniel Mack struct usb_audio_term iterm; 2239f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 2240f0b5e634SDaniel Mack int pin, ich, err; 2241f0b5e634SDaniel Mack 22426cfd839aSJorge Sanjuan err = uac_mixer_unit_get_channels(state, desc); 22436cfd839aSJorge Sanjuan if (err < 0) { 22446bc170e4SDaniel Mack usb_audio_err(state->chip, 22456bc170e4SDaniel Mack "invalid MIXER UNIT descriptor %d\n", 22466bc170e4SDaniel Mack unitid); 22476cfd839aSJorge Sanjuan return err; 2248f0b5e634SDaniel Mack } 2249f0b5e634SDaniel Mack 22506cfd839aSJorge Sanjuan num_outs = err; 22516cfd839aSJorge Sanjuan input_pins = desc->bNrInPins; 22526cfd839aSJorge Sanjuan 2253f0b5e634SDaniel Mack num_ins = 0; 2254f0b5e634SDaniel Mack ich = 0; 2255f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 225699fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 2257f0b5e634SDaniel Mack if (err < 0) 2258284a8dd6SMark Hills continue; 2259ea114fc2SClemens Ladisch /* no bmControls field (e.g. Maya44) -> ignore */ 22600bfe5e43STakashi Iwai if (!num_outs) 2261ea114fc2SClemens Ladisch continue; 226299fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 2263f0b5e634SDaniel Mack if (err < 0) 2264f0b5e634SDaniel Mack return err; 2265f0b5e634SDaniel Mack num_ins += iterm.channels; 2266f9f0e9edSTakashi Iwai if (mixer_bitmap_overflow(desc, state->mixer->protocol, 2267f9f0e9edSTakashi Iwai num_ins, num_outs)) 2268f9f0e9edSTakashi Iwai break; 22696bc170e4SDaniel Mack for (; ich < num_ins; ich++) { 2270f0b5e634SDaniel Mack int och, ich_has_controls = 0; 2271f0b5e634SDaniel Mack 22726bc170e4SDaniel Mack for (och = 0; och < num_outs; och++) { 22736bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, 22746bc170e4SDaniel Mack state->mixer->protocol); 22756bc170e4SDaniel Mack 22766bc170e4SDaniel Mack if (check_matrix_bitmap(c, ich, och, num_outs)) { 2277f0b5e634SDaniel Mack ich_has_controls = 1; 2278f0b5e634SDaniel Mack break; 2279f0b5e634SDaniel Mack } 2280f0b5e634SDaniel Mack } 2281f0b5e634SDaniel Mack if (ich_has_controls) 22826cfd839aSJorge Sanjuan build_mixer_unit_ctl(state, desc, pin, ich, num_outs, 2283f0b5e634SDaniel Mack unitid, &iterm); 2284f0b5e634SDaniel Mack } 2285f0b5e634SDaniel Mack } 2286f0b5e634SDaniel Mack return 0; 2287f0b5e634SDaniel Mack } 2288f0b5e634SDaniel Mack 2289f0b5e634SDaniel Mack /* 2290f0b5e634SDaniel Mack * Processing Unit / Extension Unit 2291f0b5e634SDaniel Mack */ 2292f0b5e634SDaniel Mack 2293f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 22946bc170e4SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, 22956bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2296f0b5e634SDaniel Mack { 2297f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2298f0b5e634SDaniel Mack int err, val; 2299f0b5e634SDaniel Mack 2300f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 23015aeee342STakashi Iwai if (err < 0) { 2302f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 23035aeee342STakashi Iwai return filter_error(cval, err); 2304f0b5e634SDaniel Mack } 2305f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2306f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 2307f0b5e634SDaniel Mack return 0; 2308f0b5e634SDaniel Mack } 2309f0b5e634SDaniel Mack 2310f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 23116bc170e4SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, 23126bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2313f0b5e634SDaniel Mack { 2314f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2315f0b5e634SDaniel Mack int val, oval, err; 2316f0b5e634SDaniel Mack 2317f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 23185aeee342STakashi Iwai if (err < 0) 23195aeee342STakashi Iwai return filter_error(cval, err); 2320f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 2321f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2322f0b5e634SDaniel Mack if (val != oval) { 2323f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2324f0b5e634SDaniel Mack return 1; 2325f0b5e634SDaniel Mack } 2326f0b5e634SDaniel Mack return 0; 2327f0b5e634SDaniel Mack } 2328f0b5e634SDaniel Mack 2329f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 23308fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_procunit_ctl = { 2331f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2332f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2333f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 2334f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 2335f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 2336f0b5e634SDaniel Mack }; 2337f0b5e634SDaniel Mack 2338f0b5e634SDaniel Mack /* 2339f0b5e634SDaniel Mack * predefined data for processing units 2340f0b5e634SDaniel Mack */ 2341f0b5e634SDaniel Mack struct procunit_value_info { 2342f0b5e634SDaniel Mack int control; 2343a01df925STakashi Iwai const char *suffix; 2344f0b5e634SDaniel Mack int val_type; 2345f0b5e634SDaniel Mack int min_value; 2346f0b5e634SDaniel Mack }; 2347f0b5e634SDaniel Mack 2348f0b5e634SDaniel Mack struct procunit_info { 2349f0b5e634SDaniel Mack int type; 2350f0b5e634SDaniel Mack char *name; 2351a01df925STakashi Iwai const struct procunit_value_info *values; 2352f0b5e634SDaniel Mack }; 2353f0b5e634SDaniel Mack 2354a01df925STakashi Iwai static const struct procunit_value_info undefined_proc_info[] = { 23550f292f02SJorge Sanjuan { 0x00, "Control Undefined", 0 }, 23560f292f02SJorge Sanjuan { 0 } 23570f292f02SJorge Sanjuan }; 23580f292f02SJorge Sanjuan 2359a01df925STakashi Iwai static const struct procunit_value_info updown_proc_info[] = { 236065f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 236165f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 2362f0b5e634SDaniel Mack { 0 } 2363f0b5e634SDaniel Mack }; 2364a01df925STakashi Iwai static const struct procunit_value_info prologic_proc_info[] = { 236565f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 236665f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 2367f0b5e634SDaniel Mack { 0 } 2368f0b5e634SDaniel Mack }; 2369a01df925STakashi Iwai static const struct procunit_value_info threed_enh_proc_info[] = { 237065f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 237165f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 2372f0b5e634SDaniel Mack { 0 } 2373f0b5e634SDaniel Mack }; 2374a01df925STakashi Iwai static const struct procunit_value_info reverb_proc_info[] = { 237565f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 237665f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 237765f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 237865f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 2379f0b5e634SDaniel Mack { 0 } 2380f0b5e634SDaniel Mack }; 2381a01df925STakashi Iwai static const struct procunit_value_info chorus_proc_info[] = { 238265f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 238365f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 238465f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 238565f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 2386f0b5e634SDaniel Mack { 0 } 2387f0b5e634SDaniel Mack }; 2388a01df925STakashi Iwai static const struct procunit_value_info dcr_proc_info[] = { 238965f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 239065f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 239165f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 239265f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 239365f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 239465f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 2395f0b5e634SDaniel Mack { 0 } 2396f0b5e634SDaniel Mack }; 2397f0b5e634SDaniel Mack 2398a01df925STakashi Iwai static const struct procunit_info procunits[] = { 239965f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 240065f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 240165f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 240265f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 240365f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 240465f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 2405f0b5e634SDaniel Mack { 0 }, 2406f0b5e634SDaniel Mack }; 24070f292f02SJorge Sanjuan 2408a01df925STakashi Iwai static const struct procunit_value_info uac3_updown_proc_info[] = { 24090f292f02SJorge Sanjuan { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 24100f292f02SJorge Sanjuan { 0 } 24110f292f02SJorge Sanjuan }; 2412a01df925STakashi Iwai static const struct procunit_value_info uac3_stereo_ext_proc_info[] = { 24130f292f02SJorge Sanjuan { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 }, 24140f292f02SJorge Sanjuan { 0 } 24150f292f02SJorge Sanjuan }; 24160f292f02SJorge Sanjuan 2417a01df925STakashi Iwai static const struct procunit_info uac3_procunits[] = { 24180f292f02SJorge Sanjuan { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info }, 24190f292f02SJorge Sanjuan { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info }, 24200f292f02SJorge Sanjuan { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info }, 24210f292f02SJorge Sanjuan { 0 }, 24220f292f02SJorge Sanjuan }; 24230f292f02SJorge Sanjuan 2424f0b5e634SDaniel Mack /* 2425f0b5e634SDaniel Mack * predefined data for extension units 2426f0b5e634SDaniel Mack */ 2427a01df925STakashi Iwai static const struct procunit_value_info clock_rate_xu_info[] = { 2428f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 2429f0b5e634SDaniel Mack { 0 } 2430f0b5e634SDaniel Mack }; 2431a01df925STakashi Iwai static const struct procunit_value_info clock_source_xu_info[] = { 2432f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 2433f0b5e634SDaniel Mack { 0 } 2434f0b5e634SDaniel Mack }; 2435a01df925STakashi Iwai static const struct procunit_value_info spdif_format_xu_info[] = { 2436f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 2437f0b5e634SDaniel Mack { 0 } 2438f0b5e634SDaniel Mack }; 2439a01df925STakashi Iwai static const struct procunit_value_info soft_limit_xu_info[] = { 2440f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 2441f0b5e634SDaniel Mack { 0 } 2442f0b5e634SDaniel Mack }; 2443a01df925STakashi Iwai static const struct procunit_info extunits[] = { 2444f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 2445f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 2446f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 2447f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 2448f0b5e634SDaniel Mack { 0 } 2449f0b5e634SDaniel Mack }; 24506bc170e4SDaniel Mack 2451f0b5e634SDaniel Mack /* 2452f0b5e634SDaniel Mack * build a processing/extension unit 2453f0b5e634SDaniel Mack */ 24546bc170e4SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, 2455a01df925STakashi Iwai void *raw_desc, const struct procunit_info *list, 2456ca95c7bfSTakashi Iwai bool extension_unit) 2457f0b5e634SDaniel Mack { 245899fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 2459f4351a19STakashi Iwai int num_ins; 2460f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2461f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2462d8d0db7bSTom Yan int i, err, nameid, type, len, val; 2463a01df925STakashi Iwai const struct procunit_info *info; 2464a01df925STakashi Iwai const struct procunit_value_info *valinfo; 2465f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2466a01df925STakashi Iwai static const struct procunit_value_info default_value_info[] = { 2467f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 2468f0b5e634SDaniel Mack { 0 } 2469f0b5e634SDaniel Mack }; 2470a01df925STakashi Iwai static const struct procunit_info default_info = { 2471f0b5e634SDaniel Mack 0, NULL, default_value_info 2472f0b5e634SDaniel Mack }; 2473ca95c7bfSTakashi Iwai const char *name = extension_unit ? 2474ca95c7bfSTakashi Iwai "Extension Unit" : "Processing Unit"; 2475f0b5e634SDaniel Mack 2476f4351a19STakashi Iwai num_ins = desc->bNrInPins; 2477f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 2478f25ecf8fSTakashi Iwai err = parse_audio_unit(state, desc->baSourceID[i]); 2479f25ecf8fSTakashi Iwai if (err < 0) 2480f0b5e634SDaniel Mack return err; 2481f0b5e634SDaniel Mack } 2482f0b5e634SDaniel Mack 248399fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 2484f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 2485f0b5e634SDaniel Mack if (info->type == type) 2486f0b5e634SDaniel Mack break; 2487f0b5e634SDaniel Mack if (!info || !info->type) 2488f0b5e634SDaniel Mack info = &default_info; 2489f0b5e634SDaniel Mack 2490f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 249123caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 249299fc8645SDaniel Mack 24934e887af3SJorge Sanjuan if (state->mixer->protocol == UAC_VERSION_1) { 24944e887af3SJorge Sanjuan if (!(controls[valinfo->control / 8] & 24954e887af3SJorge Sanjuan (1 << ((valinfo->control % 8) - 1)))) 2496f0b5e634SDaniel Mack continue; 24974e887af3SJorge Sanjuan } else { /* UAC_VERSION_2/3 */ 24984e887af3SJorge Sanjuan if (!uac_v2v3_control_is_readable(controls[valinfo->control / 8], 24994e887af3SJorge Sanjuan valinfo->control)) 25004e887af3SJorge Sanjuan continue; 25014e887af3SJorge Sanjuan } 25024e887af3SJorge Sanjuan 250317156f23SRuslan Bilovol map = find_map(state->map, unitid, valinfo->control); 2504f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2505f0b5e634SDaniel Mack continue; 2506f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2507a860d95fSDaniel Mack if (!cval) 2508f0b5e634SDaniel Mack return -ENOMEM; 25093360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2510f0b5e634SDaniel Mack cval->control = valinfo->control; 2511f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 2512f0b5e634SDaniel Mack cval->channels = 1; 2513f0b5e634SDaniel Mack 25144e887af3SJorge Sanjuan if (state->mixer->protocol > UAC_VERSION_1 && 25154e887af3SJorge Sanjuan !uac_v2v3_control_is_writeable(controls[valinfo->control / 8], 25164e887af3SJorge Sanjuan valinfo->control)) 25174e887af3SJorge Sanjuan cval->master_readonly = 1; 25184e887af3SJorge Sanjuan 2519f0b5e634SDaniel Mack /* get min/max values */ 252055b8cb46SJorge Sanjuan switch (type) { 252155b8cb46SJorge Sanjuan case UAC_PROCESS_UP_DOWNMIX: { 252255b8cb46SJorge Sanjuan bool mode_sel = false; 252355b8cb46SJorge Sanjuan 252455b8cb46SJorge Sanjuan switch (state->mixer->protocol) { 252555b8cb46SJorge Sanjuan case UAC_VERSION_1: 252655b8cb46SJorge Sanjuan case UAC_VERSION_2: 252755b8cb46SJorge Sanjuan default: 252855b8cb46SJorge Sanjuan if (cval->control == UAC_UD_MODE_SELECT) 252955b8cb46SJorge Sanjuan mode_sel = true; 253055b8cb46SJorge Sanjuan break; 253155b8cb46SJorge Sanjuan case UAC_VERSION_3: 253255b8cb46SJorge Sanjuan if (cval->control == UAC3_UD_MODE_SELECT) 253355b8cb46SJorge Sanjuan mode_sel = true; 253455b8cb46SJorge Sanjuan break; 253555b8cb46SJorge Sanjuan } 253655b8cb46SJorge Sanjuan 253755b8cb46SJorge Sanjuan if (mode_sel) { 253855b8cb46SJorge Sanjuan __u8 *control_spec = uac_processing_unit_specific(desc, 253955b8cb46SJorge Sanjuan state->mixer->protocol); 2540f0b5e634SDaniel Mack cval->min = 1; 254199fc8645SDaniel Mack cval->max = control_spec[0]; 2542f0b5e634SDaniel Mack cval->res = 1; 2543f0b5e634SDaniel Mack cval->initialized = 1; 254455b8cb46SJorge Sanjuan break; 254555b8cb46SJorge Sanjuan } 254655b8cb46SJorge Sanjuan 254755b8cb46SJorge Sanjuan get_min_max(cval, valinfo->min_value); 254855b8cb46SJorge Sanjuan break; 254955b8cb46SJorge Sanjuan } 255055b8cb46SJorge Sanjuan case USB_XU_CLOCK_RATE: 25516bc170e4SDaniel Mack /* 25526bc170e4SDaniel Mack * E-Mu USB 0404/0202/TrackerPre/0204 2553f0b5e634SDaniel Mack * samplerate control quirk 2554f0b5e634SDaniel Mack */ 2555f0b5e634SDaniel Mack cval->min = 0; 2556f0b5e634SDaniel Mack cval->max = 5; 2557f0b5e634SDaniel Mack cval->res = 1; 2558f0b5e634SDaniel Mack cval->initialized = 1; 255955b8cb46SJorge Sanjuan break; 256055b8cb46SJorge Sanjuan default: 2561f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 256255b8cb46SJorge Sanjuan break; 2563f0b5e634SDaniel Mack } 2564f0b5e634SDaniel Mack 2565d8d0db7bSTom Yan err = get_cur_ctl_value(cval, cval->control << 8, &val); 2566d8d0db7bSTom Yan if (err < 0) { 2567d8d0db7bSTom Yan usb_mixer_elem_info_free(cval); 2568d8d0db7bSTom Yan return -EINVAL; 2569d8d0db7bSTom Yan } 2570d8d0db7bSTom Yan 2571f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 2572f0b5e634SDaniel Mack if (!kctl) { 257352c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 2574f0b5e634SDaniel Mack return -ENOMEM; 2575f0b5e634SDaniel Mack } 2576eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2577f0b5e634SDaniel Mack 25786bc170e4SDaniel Mack if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { 2579f0b5e634SDaniel Mack /* nothing */ ; 25806bc170e4SDaniel Mack } else if (info->name) { 258175b1a8f9SJoe Perches strscpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 25826bc170e4SDaniel Mack } else { 2583ca95c7bfSTakashi Iwai if (extension_unit) 2584ca95c7bfSTakashi Iwai nameid = uac_extension_unit_iExtension(desc, state->mixer->protocol); 2585ca95c7bfSTakashi Iwai else 258623caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 2587f0b5e634SDaniel Mack len = 0; 2588f0b5e634SDaniel Mack if (nameid) 2589eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(state->chip, 2590eccfc1b8SRuslan Bilovol nameid, 25916bc170e4SDaniel Mack kctl->id.name, 25926bc170e4SDaniel Mack sizeof(kctl->id.name)); 2593f0b5e634SDaniel Mack if (!len) 259475b1a8f9SJoe Perches strscpy(kctl->id.name, name, sizeof(kctl->id.name)); 2595f0b5e634SDaniel Mack } 2596f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 2597f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 2598f0b5e634SDaniel Mack 25990ba41d91STakashi Iwai usb_audio_dbg(state->chip, 26000ba41d91STakashi Iwai "[%d] PU [%s] ch = %d, val = %d/%d\n", 26013360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 26026bc170e4SDaniel Mack cval->min, cval->max); 26036bc170e4SDaniel Mack 26043360b84bSTakashi Iwai err = snd_usb_mixer_add_control(&cval->head, kctl); 26056bc170e4SDaniel Mack if (err < 0) 2606f0b5e634SDaniel Mack return err; 2607f0b5e634SDaniel Mack } 2608f0b5e634SDaniel Mack return 0; 2609f0b5e634SDaniel Mack } 2610f0b5e634SDaniel Mack 26116bc170e4SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, 26126bc170e4SDaniel Mack void *raw_desc) 2613f0b5e634SDaniel Mack { 26140f292f02SJorge Sanjuan switch (state->mixer->protocol) { 26150f292f02SJorge Sanjuan case UAC_VERSION_1: 26160f292f02SJorge Sanjuan case UAC_VERSION_2: 26170f292f02SJorge Sanjuan default: 26186bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 2619ca95c7bfSTakashi Iwai procunits, false); 26200f292f02SJorge Sanjuan case UAC_VERSION_3: 26210f292f02SJorge Sanjuan return build_audio_procunit(state, unitid, raw_desc, 2622ca95c7bfSTakashi Iwai uac3_procunits, false); 26230f292f02SJorge Sanjuan } 2624f0b5e634SDaniel Mack } 2625f0b5e634SDaniel Mack 26266bc170e4SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, 26276bc170e4SDaniel Mack void *raw_desc) 2628f0b5e634SDaniel Mack { 26296bc170e4SDaniel Mack /* 26306bc170e4SDaniel Mack * Note that we parse extension units with processing unit descriptors. 26316bc170e4SDaniel Mack * That's ok as the layout is the same. 26326bc170e4SDaniel Mack */ 2633ca95c7bfSTakashi Iwai return build_audio_procunit(state, unitid, raw_desc, extunits, true); 2634f0b5e634SDaniel Mack } 2635f0b5e634SDaniel Mack 2636f0b5e634SDaniel Mack /* 2637f0b5e634SDaniel Mack * Selector Unit 2638f0b5e634SDaniel Mack */ 2639f0b5e634SDaniel Mack 26406bc170e4SDaniel Mack /* 26416bc170e4SDaniel Mack * info callback for selector unit 2642f0b5e634SDaniel Mack * use an enumerator type for routing 2643f0b5e634SDaniel Mack */ 26446bc170e4SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, 26456bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 2646f0b5e634SDaniel Mack { 2647f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 26482a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 2649f0b5e634SDaniel Mack 2650f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 2651f0b5e634SDaniel Mack return -EINVAL; 26522a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 2653f0b5e634SDaniel Mack } 2654f0b5e634SDaniel Mack 2655f0b5e634SDaniel Mack /* get callback for selector unit */ 26566bc170e4SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, 26576bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2658f0b5e634SDaniel Mack { 2659f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2660f0b5e634SDaniel Mack int val, err; 2661f0b5e634SDaniel Mack 266209414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 2663f0b5e634SDaniel Mack if (err < 0) { 2664f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 26655aeee342STakashi Iwai return filter_error(cval, err); 2666f0b5e634SDaniel Mack } 2667f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2668f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 2669f0b5e634SDaniel Mack return 0; 2670f0b5e634SDaniel Mack } 2671f0b5e634SDaniel Mack 2672f0b5e634SDaniel Mack /* put callback for selector unit */ 26736bc170e4SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, 26746bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2675f0b5e634SDaniel Mack { 2676f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2677f0b5e634SDaniel Mack int val, oval, err; 2678f0b5e634SDaniel Mack 267909414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 26805aeee342STakashi Iwai if (err < 0) 26815aeee342STakashi Iwai return filter_error(cval, err); 2682f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 2683f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2684f0b5e634SDaniel Mack if (val != oval) { 268509414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2686f0b5e634SDaniel Mack return 1; 2687f0b5e634SDaniel Mack } 2688f0b5e634SDaniel Mack return 0; 2689f0b5e634SDaniel Mack } 2690f0b5e634SDaniel Mack 2691f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 26928fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_selectunit_ctl = { 2693f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2694f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2695f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 2696f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 2697f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 2698f0b5e634SDaniel Mack }; 2699f0b5e634SDaniel Mack 27006bc170e4SDaniel Mack /* 27016bc170e4SDaniel Mack * private free callback. 2702f0b5e634SDaniel Mack * free both private_data and private_value 2703f0b5e634SDaniel Mack */ 2704f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 2705f0b5e634SDaniel Mack { 2706f0b5e634SDaniel Mack int i, num_ins = 0; 2707f0b5e634SDaniel Mack 2708f0b5e634SDaniel Mack if (kctl->private_data) { 2709f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 2710f0b5e634SDaniel Mack num_ins = cval->max; 271152c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 2712f0b5e634SDaniel Mack kctl->private_data = NULL; 2713f0b5e634SDaniel Mack } 2714f0b5e634SDaniel Mack if (kctl->private_value) { 2715f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 2716f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 2717f0b5e634SDaniel Mack kfree(itemlist[i]); 2718f0b5e634SDaniel Mack kfree(itemlist); 2719f0b5e634SDaniel Mack kctl->private_value = 0; 2720f0b5e634SDaniel Mack } 2721f0b5e634SDaniel Mack } 2722f0b5e634SDaniel Mack 2723f0b5e634SDaniel Mack /* 2724f0b5e634SDaniel Mack * parse a selector unit 2725f0b5e634SDaniel Mack */ 27266bc170e4SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, 27276bc170e4SDaniel Mack void *raw_desc) 2728f0b5e634SDaniel Mack { 272999fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 2730f0b5e634SDaniel Mack unsigned int i, nameid, len; 2731f0b5e634SDaniel Mack int err; 2732f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2733f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2734f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2735f0b5e634SDaniel Mack char **namelist; 2736f0b5e634SDaniel Mack 273799fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2738f25ecf8fSTakashi Iwai err = parse_audio_unit(state, desc->baSourceID[i]); 2739f25ecf8fSTakashi Iwai if (err < 0) 2740f0b5e634SDaniel Mack return err; 2741f0b5e634SDaniel Mack } 2742f0b5e634SDaniel Mack 274399fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 2744f0b5e634SDaniel Mack return 0; 2745f0b5e634SDaniel Mack 274617156f23SRuslan Bilovol map = find_map(state->map, unitid, 0); 2747f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2748f0b5e634SDaniel Mack return 0; 2749f0b5e634SDaniel Mack 2750f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2751a860d95fSDaniel Mack if (!cval) 2752f0b5e634SDaniel Mack return -ENOMEM; 27533360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2754f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 2755f0b5e634SDaniel Mack cval->channels = 1; 2756f0b5e634SDaniel Mack cval->min = 1; 275799fc8645SDaniel Mack cval->max = desc->bNrInPins; 2758f0b5e634SDaniel Mack cval->res = 1; 2759f0b5e634SDaniel Mack cval->initialized = 1; 2760f0b5e634SDaniel Mack 2761c77e1ef1SJorge Sanjuan switch (state->mixer->protocol) { 2762c77e1ef1SJorge Sanjuan case UAC_VERSION_1: 2763c77e1ef1SJorge Sanjuan default: 276409414207SDaniel Mack cval->control = 0; 2765c77e1ef1SJorge Sanjuan break; 2766c77e1ef1SJorge Sanjuan case UAC_VERSION_2: 2767c77e1ef1SJorge Sanjuan case UAC_VERSION_3: 2768c77e1ef1SJorge Sanjuan if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || 2769c77e1ef1SJorge Sanjuan desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) 2770c77e1ef1SJorge Sanjuan cval->control = UAC2_CX_CLOCK_SELECTOR; 2771c77e1ef1SJorge Sanjuan else /* UAC2/3_SELECTOR_UNIT */ 2772c77e1ef1SJorge Sanjuan cval->control = UAC2_SU_SELECTOR; 2773c77e1ef1SJorge Sanjuan break; 2774c77e1ef1SJorge Sanjuan } 277509414207SDaniel Mack 277652c3e317STakashi Iwai namelist = kcalloc(desc->bNrInPins, sizeof(char *), GFP_KERNEL); 2777f0b5e634SDaniel Mack if (!namelist) { 277852c3e317STakashi Iwai err = -ENOMEM; 277952c3e317STakashi Iwai goto error_cval; 2780f0b5e634SDaniel Mack } 2781f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 278299fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2783f0b5e634SDaniel Mack struct usb_audio_term iterm; 2784f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 2785f0b5e634SDaniel Mack if (!namelist[i]) { 278652c3e317STakashi Iwai err = -ENOMEM; 278752c3e317STakashi Iwai goto error_name; 2788f0b5e634SDaniel Mack } 2789f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 2790f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 279199fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 2792eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, &iterm, namelist[i], 2793eccfc1b8SRuslan Bilovol MAX_ITEM_NAME_LEN, 0); 2794f0b5e634SDaniel Mack if (! len) 2795af831eefSMasanari Iida sprintf(namelist[i], "Input %u", i); 2796f0b5e634SDaniel Mack } 2797f0b5e634SDaniel Mack 2798f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 2799f0b5e634SDaniel Mack if (! kctl) { 28000ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 280152c3e317STakashi Iwai err = -ENOMEM; 280252c3e317STakashi Iwai goto error_name; 2803f0b5e634SDaniel Mack } 2804f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 2805f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 2806f0b5e634SDaniel Mack 28075a15f289STakashi Iwai /* check the static mapping table at first */ 2808f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 28095a15f289STakashi Iwai if (!len) { 28105a15f289STakashi Iwai /* no mapping ? */ 2811c77e1ef1SJorge Sanjuan switch (state->mixer->protocol) { 2812c77e1ef1SJorge Sanjuan case UAC_VERSION_1: 2813c77e1ef1SJorge Sanjuan case UAC_VERSION_2: 2814c77e1ef1SJorge Sanjuan default: 28155a15f289STakashi Iwai /* if iSelector is given, use it */ 28165a15f289STakashi Iwai nameid = uac_selector_unit_iSelector(desc); 28175a15f289STakashi Iwai if (nameid) 2818c77e1ef1SJorge Sanjuan len = snd_usb_copy_string_desc(state->chip, 2819c77e1ef1SJorge Sanjuan nameid, kctl->id.name, 28206bc170e4SDaniel Mack sizeof(kctl->id.name)); 2821c77e1ef1SJorge Sanjuan break; 2822c77e1ef1SJorge Sanjuan case UAC_VERSION_3: 2823c77e1ef1SJorge Sanjuan /* TODO: Class-Specific strings not yet supported */ 2824c77e1ef1SJorge Sanjuan break; 2825c77e1ef1SJorge Sanjuan } 2826c77e1ef1SJorge Sanjuan 28275a15f289STakashi Iwai /* ... or pick up the terminal name at next */ 28285a15f289STakashi Iwai if (!len) 2829eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, &state->oterm, 2830f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 28315a15f289STakashi Iwai /* ... or use the fixed string "USB" as the last resort */ 2832f0b5e634SDaniel Mack if (!len) 283375b1a8f9SJoe Perches strscpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 2834f0b5e634SDaniel Mack 28355a15f289STakashi Iwai /* and add the proper suffix */ 2836c77e1ef1SJorge Sanjuan if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || 2837c77e1ef1SJorge Sanjuan desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) 283809414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 283909414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 2840f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 2841f0b5e634SDaniel Mack else 2842f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 2843f0b5e634SDaniel Mack } 2844f0b5e634SDaniel Mack 28450ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", 28463360b84bSTakashi Iwai cval->head.id, kctl->id.name, desc->bNrInPins); 28473360b84bSTakashi Iwai return snd_usb_mixer_add_control(&cval->head, kctl); 284852c3e317STakashi Iwai 284952c3e317STakashi Iwai error_name: 285052c3e317STakashi Iwai for (i = 0; i < desc->bNrInPins; i++) 285152c3e317STakashi Iwai kfree(namelist[i]); 285252c3e317STakashi Iwai kfree(namelist); 285352c3e317STakashi Iwai error_cval: 285452c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 285552c3e317STakashi Iwai return err; 2856f0b5e634SDaniel Mack } 2857f0b5e634SDaniel Mack 2858f0b5e634SDaniel Mack /* 2859f0b5e634SDaniel Mack * parse an audio unit recursively 2860f0b5e634SDaniel Mack */ 2861f0b5e634SDaniel Mack 2862f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 2863f0b5e634SDaniel Mack { 2864f0b5e634SDaniel Mack unsigned char *p1; 28659a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 2866f0b5e634SDaniel Mack 2867f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 2868f0b5e634SDaniel Mack return 0; /* the unit already visited */ 2869f0b5e634SDaniel Mack 2870f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 2871f0b5e634SDaniel Mack if (!p1) { 28720ba41d91STakashi Iwai usb_audio_err(state->chip, "unit %d not found!\n", unitid); 2873f0b5e634SDaniel Mack return -EINVAL; 2874f0b5e634SDaniel Mack } 2875f0b5e634SDaniel Mack 287657f87706STakashi Iwai if (!snd_usb_validate_audio_desc(p1, protocol)) { 287757f87706STakashi Iwai usb_audio_dbg(state->chip, "invalid unit %d\n", unitid); 287857f87706STakashi Iwai return 0; /* skip invalid unit */ 287957f87706STakashi Iwai } 288057f87706STakashi Iwai 288168e9fde2STakashi Iwai switch (PTYPE(protocol, p1[2])) { 288268e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): 288368e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): 288468e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): 28855a222e84SAndrew Chant return parse_audio_input_terminal(state, unitid, p1); 288668e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): 288768e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): 288868e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): 2889f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 289068e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): 289168e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): 2892cddaafb9SDaniel Mack return parse_clock_source_unit(state, unitid, p1); 289368e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): 289468e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): 289568e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): 289668e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): 289768e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): 2898f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 289968e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): 290068e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): 290168e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): 2902f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 290368e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): 290468e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): 290568e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): 2906f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 290768e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): 290868e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): 290968e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): 291068e9fde2STakashi Iwai return parse_audio_extension_unit(state, unitid, p1); 291168e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): 291268e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): 291323caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 2914f0b5e634SDaniel Mack default: 29150ba41d91STakashi Iwai usb_audio_err(state->chip, 291668e9fde2STakashi Iwai "unit %u: unexpected type 0x%02x\n", 291768e9fde2STakashi Iwai unitid, p1[2]); 2918f0b5e634SDaniel Mack return -EINVAL; 2919f0b5e634SDaniel Mack } 2920f0b5e634SDaniel Mack } 2921f0b5e634SDaniel Mack 2922f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 2923f0b5e634SDaniel Mack { 2924124751d5STakashi Iwai /* kill pending URBs */ 2925124751d5STakashi Iwai snd_usb_mixer_disconnect(mixer); 2926124751d5STakashi Iwai 2927f0b5e634SDaniel Mack kfree(mixer->id_elems); 2928f0b5e634SDaniel Mack if (mixer->urb) { 2929f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 2930f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 2931f0b5e634SDaniel Mack } 2932f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 2933f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 2934f0b5e634SDaniel Mack kfree(mixer); 2935f0b5e634SDaniel Mack } 2936f0b5e634SDaniel Mack 2937f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 2938f0b5e634SDaniel Mack { 2939f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 2940f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2941f0b5e634SDaniel Mack return 0; 2942f0b5e634SDaniel Mack } 2943f0b5e634SDaniel Mack 294417156f23SRuslan Bilovol /* UAC3 predefined channels configuration */ 294517156f23SRuslan Bilovol struct uac3_badd_profile { 294617156f23SRuslan Bilovol int subclass; 294717156f23SRuslan Bilovol const char *name; 294817156f23SRuslan Bilovol int c_chmask; /* capture channels mask */ 294917156f23SRuslan Bilovol int p_chmask; /* playback channels mask */ 295017156f23SRuslan Bilovol int st_chmask; /* side tone mixing channel mask */ 295117156f23SRuslan Bilovol }; 295217156f23SRuslan Bilovol 2953a01df925STakashi Iwai static const struct uac3_badd_profile uac3_badd_profiles[] = { 295417156f23SRuslan Bilovol { 295517156f23SRuslan Bilovol /* 295617156f23SRuslan Bilovol * BAIF, BAOF or combination of both 295717156f23SRuslan Bilovol * IN: Mono or Stereo cfg, Mono alt possible 295817156f23SRuslan Bilovol * OUT: Mono or Stereo cfg, Mono alt possible 295917156f23SRuslan Bilovol */ 296017156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO, 296117156f23SRuslan Bilovol .name = "GENERIC IO", 296217156f23SRuslan Bilovol .c_chmask = -1, /* dynamic channels */ 296317156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 296417156f23SRuslan Bilovol }, 296517156f23SRuslan Bilovol { 296617156f23SRuslan Bilovol /* BAOF; Stereo only cfg, Mono alt possible */ 296717156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE, 296817156f23SRuslan Bilovol .name = "HEADPHONE", 296917156f23SRuslan Bilovol .p_chmask = 3, 297017156f23SRuslan Bilovol }, 297117156f23SRuslan Bilovol { 297217156f23SRuslan Bilovol /* BAOF; Mono or Stereo cfg, Mono alt possible */ 297317156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER, 297417156f23SRuslan Bilovol .name = "SPEAKER", 297517156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 297617156f23SRuslan Bilovol }, 297717156f23SRuslan Bilovol { 297817156f23SRuslan Bilovol /* BAIF; Mono or Stereo cfg, Mono alt possible */ 297917156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE, 298017156f23SRuslan Bilovol .name = "MICROPHONE", 298117156f23SRuslan Bilovol .c_chmask = -1, /* dynamic channels */ 298217156f23SRuslan Bilovol }, 298317156f23SRuslan Bilovol { 298417156f23SRuslan Bilovol /* 298517156f23SRuslan Bilovol * BAIOF topology 298617156f23SRuslan Bilovol * IN: Mono only 298717156f23SRuslan Bilovol * OUT: Mono or Stereo cfg, Mono alt possible 298817156f23SRuslan Bilovol */ 298917156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET, 299017156f23SRuslan Bilovol .name = "HEADSET", 299117156f23SRuslan Bilovol .c_chmask = 1, 299217156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 299317156f23SRuslan Bilovol .st_chmask = 1, 299417156f23SRuslan Bilovol }, 299517156f23SRuslan Bilovol { 299617156f23SRuslan Bilovol /* BAIOF; IN: Mono only; OUT: Stereo only, Mono alt possible */ 299717156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER, 299817156f23SRuslan Bilovol .name = "HEADSET ADAPTER", 299917156f23SRuslan Bilovol .c_chmask = 1, 300017156f23SRuslan Bilovol .p_chmask = 3, 300117156f23SRuslan Bilovol .st_chmask = 1, 300217156f23SRuslan Bilovol }, 300317156f23SRuslan Bilovol { 300417156f23SRuslan Bilovol /* BAIF + BAOF; IN: Mono only; OUT: Mono only */ 300517156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, 300617156f23SRuslan Bilovol .name = "SPEAKERPHONE", 300717156f23SRuslan Bilovol .c_chmask = 1, 300817156f23SRuslan Bilovol .p_chmask = 1, 300917156f23SRuslan Bilovol }, 301017156f23SRuslan Bilovol { 0 } /* terminator */ 301117156f23SRuslan Bilovol }; 301217156f23SRuslan Bilovol 301317156f23SRuslan Bilovol static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer, 3014a01df925STakashi Iwai const struct uac3_badd_profile *f, 301517156f23SRuslan Bilovol int c_chmask, int p_chmask) 301617156f23SRuslan Bilovol { 301717156f23SRuslan Bilovol /* 301817156f23SRuslan Bilovol * If both playback/capture channels are dynamic, make sure 301917156f23SRuslan Bilovol * at least one channel is present 302017156f23SRuslan Bilovol */ 302117156f23SRuslan Bilovol if (f->c_chmask < 0 && f->p_chmask < 0) { 302217156f23SRuslan Bilovol if (!c_chmask && !p_chmask) { 302317156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s: no channels?", 302417156f23SRuslan Bilovol f->name); 302517156f23SRuslan Bilovol return false; 302617156f23SRuslan Bilovol } 302717156f23SRuslan Bilovol return true; 302817156f23SRuslan Bilovol } 302917156f23SRuslan Bilovol 303017156f23SRuslan Bilovol if ((f->c_chmask < 0 && !c_chmask) || 303117156f23SRuslan Bilovol (f->c_chmask >= 0 && f->c_chmask != c_chmask)) { 303217156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch", 303317156f23SRuslan Bilovol f->name); 303417156f23SRuslan Bilovol return false; 303517156f23SRuslan Bilovol } 303617156f23SRuslan Bilovol if ((f->p_chmask < 0 && !p_chmask) || 303717156f23SRuslan Bilovol (f->p_chmask >= 0 && f->p_chmask != p_chmask)) { 303817156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch", 303917156f23SRuslan Bilovol f->name); 304017156f23SRuslan Bilovol return false; 304117156f23SRuslan Bilovol } 304217156f23SRuslan Bilovol return true; 304317156f23SRuslan Bilovol } 304417156f23SRuslan Bilovol 304517156f23SRuslan Bilovol /* 304617156f23SRuslan Bilovol * create mixer controls for UAC3 BADD profiles 304717156f23SRuslan Bilovol * 304817156f23SRuslan Bilovol * UAC3 BADD device doesn't contain CS descriptors thus we will guess everything 304917156f23SRuslan Bilovol * 305017156f23SRuslan Bilovol * BADD device may contain Mixer Unit, which doesn't have any controls, skip it 305117156f23SRuslan Bilovol */ 305217156f23SRuslan Bilovol static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer, 305317156f23SRuslan Bilovol int ctrlif) 305417156f23SRuslan Bilovol { 305517156f23SRuslan Bilovol struct usb_device *dev = mixer->chip->dev; 305617156f23SRuslan Bilovol struct usb_interface_assoc_descriptor *assoc; 305717156f23SRuslan Bilovol int badd_profile = mixer->chip->badd_profile; 3058a01df925STakashi Iwai const struct uac3_badd_profile *f; 305917156f23SRuslan Bilovol const struct usbmix_ctl_map *map; 306017156f23SRuslan Bilovol int p_chmask = 0, c_chmask = 0, st_chmask = 0; 306117156f23SRuslan Bilovol int i; 306217156f23SRuslan Bilovol 306317156f23SRuslan Bilovol assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc; 306417156f23SRuslan Bilovol 306517156f23SRuslan Bilovol /* Detect BADD capture/playback channels from AS EP descriptors */ 306617156f23SRuslan Bilovol for (i = 0; i < assoc->bInterfaceCount; i++) { 306717156f23SRuslan Bilovol int intf = assoc->bFirstInterface + i; 306817156f23SRuslan Bilovol 306917156f23SRuslan Bilovol struct usb_interface *iface; 307017156f23SRuslan Bilovol struct usb_host_interface *alts; 307117156f23SRuslan Bilovol struct usb_interface_descriptor *altsd; 307217156f23SRuslan Bilovol unsigned int maxpacksize; 307317156f23SRuslan Bilovol char dir_in; 307417156f23SRuslan Bilovol int chmask, num; 307517156f23SRuslan Bilovol 307617156f23SRuslan Bilovol if (intf == ctrlif) 307717156f23SRuslan Bilovol continue; 307817156f23SRuslan Bilovol 307917156f23SRuslan Bilovol iface = usb_ifnum_to_if(dev, intf); 30809435f2bbSTakashi Iwai if (!iface) 30819435f2bbSTakashi Iwai continue; 30829435f2bbSTakashi Iwai 308317156f23SRuslan Bilovol num = iface->num_altsetting; 308417156f23SRuslan Bilovol 308517156f23SRuslan Bilovol if (num < 2) 308617156f23SRuslan Bilovol return -EINVAL; 308717156f23SRuslan Bilovol 308817156f23SRuslan Bilovol /* 308917156f23SRuslan Bilovol * The number of Channels in an AudioStreaming interface 309017156f23SRuslan Bilovol * and the audio sample bit resolution (16 bits or 24 309117156f23SRuslan Bilovol * bits) can be derived from the wMaxPacketSize field in 309217156f23SRuslan Bilovol * the Standard AS Audio Data Endpoint descriptor in 309317156f23SRuslan Bilovol * Alternate Setting 1 309417156f23SRuslan Bilovol */ 309517156f23SRuslan Bilovol alts = &iface->altsetting[1]; 309617156f23SRuslan Bilovol altsd = get_iface_desc(alts); 309717156f23SRuslan Bilovol 309817156f23SRuslan Bilovol if (altsd->bNumEndpoints < 1) 309917156f23SRuslan Bilovol return -EINVAL; 310017156f23SRuslan Bilovol 310117156f23SRuslan Bilovol /* check direction */ 310217156f23SRuslan Bilovol dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); 310317156f23SRuslan Bilovol maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); 310417156f23SRuslan Bilovol 310517156f23SRuslan Bilovol switch (maxpacksize) { 310617156f23SRuslan Bilovol default: 310717156f23SRuslan Bilovol usb_audio_err(mixer->chip, 310817156f23SRuslan Bilovol "incorrect wMaxPacketSize 0x%x for BADD profile\n", 310917156f23SRuslan Bilovol maxpacksize); 311017156f23SRuslan Bilovol return -EINVAL; 311117156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: 311217156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: 311317156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: 311417156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: 311517156f23SRuslan Bilovol chmask = 1; 311617156f23SRuslan Bilovol break; 311717156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: 311817156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: 311917156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: 312017156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: 312117156f23SRuslan Bilovol chmask = 3; 312217156f23SRuslan Bilovol break; 312317156f23SRuslan Bilovol } 312417156f23SRuslan Bilovol 312517156f23SRuslan Bilovol if (dir_in) 312617156f23SRuslan Bilovol c_chmask = chmask; 312717156f23SRuslan Bilovol else 312817156f23SRuslan Bilovol p_chmask = chmask; 312917156f23SRuslan Bilovol } 313017156f23SRuslan Bilovol 313117156f23SRuslan Bilovol usb_audio_dbg(mixer->chip, 313217156f23SRuslan Bilovol "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n", 313317156f23SRuslan Bilovol badd_profile, c_chmask, p_chmask); 313417156f23SRuslan Bilovol 313517156f23SRuslan Bilovol /* check the mapping table */ 313617156f23SRuslan Bilovol for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) { 313717156f23SRuslan Bilovol if (map->id == badd_profile) 313817156f23SRuslan Bilovol break; 313917156f23SRuslan Bilovol } 314017156f23SRuslan Bilovol 314117156f23SRuslan Bilovol if (!map->id) 314217156f23SRuslan Bilovol return -EINVAL; 314317156f23SRuslan Bilovol 314417156f23SRuslan Bilovol for (f = uac3_badd_profiles; f->name; f++) { 314517156f23SRuslan Bilovol if (badd_profile == f->subclass) 314617156f23SRuslan Bilovol break; 314717156f23SRuslan Bilovol } 314817156f23SRuslan Bilovol if (!f->name) 314917156f23SRuslan Bilovol return -EINVAL; 315017156f23SRuslan Bilovol if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask)) 315117156f23SRuslan Bilovol return -EINVAL; 315217156f23SRuslan Bilovol st_chmask = f->st_chmask; 315317156f23SRuslan Bilovol 315417156f23SRuslan Bilovol /* Playback */ 315517156f23SRuslan Bilovol if (p_chmask) { 315617156f23SRuslan Bilovol /* Master channel, always writable */ 315717156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 315817156f23SRuslan Bilovol UAC3_BADD_FU_ID2, map->map); 315917156f23SRuslan Bilovol /* Mono/Stereo volume channels, always writable */ 316017156f23SRuslan Bilovol build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME, 316117156f23SRuslan Bilovol UAC3_BADD_FU_ID2, map->map); 316217156f23SRuslan Bilovol } 316317156f23SRuslan Bilovol 316417156f23SRuslan Bilovol /* Capture */ 316517156f23SRuslan Bilovol if (c_chmask) { 316617156f23SRuslan Bilovol /* Master channel, always writable */ 316717156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 316817156f23SRuslan Bilovol UAC3_BADD_FU_ID5, map->map); 316917156f23SRuslan Bilovol /* Mono/Stereo volume channels, always writable */ 317017156f23SRuslan Bilovol build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME, 317117156f23SRuslan Bilovol UAC3_BADD_FU_ID5, map->map); 317217156f23SRuslan Bilovol } 317317156f23SRuslan Bilovol 317417156f23SRuslan Bilovol /* Side tone-mixing */ 317517156f23SRuslan Bilovol if (st_chmask) { 317617156f23SRuslan Bilovol /* Master channel, always writable */ 317717156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 317817156f23SRuslan Bilovol UAC3_BADD_FU_ID7, map->map); 317917156f23SRuslan Bilovol /* Mono volume channel, always writable */ 318017156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME, 318117156f23SRuslan Bilovol UAC3_BADD_FU_ID7, map->map); 318217156f23SRuslan Bilovol } 318317156f23SRuslan Bilovol 31843528cd8fSJorge Sanjuan /* Insertion Control */ 31853528cd8fSJorge Sanjuan if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) { 31863528cd8fSJorge Sanjuan struct usb_audio_term iterm, oterm; 31873528cd8fSJorge Sanjuan 31883528cd8fSJorge Sanjuan /* Input Term - Insertion control */ 31893528cd8fSJorge Sanjuan memset(&iterm, 0, sizeof(iterm)); 31903528cd8fSJorge Sanjuan iterm.id = UAC3_BADD_IT_ID4; 31913528cd8fSJorge Sanjuan iterm.type = UAC_BIDIR_TERMINAL_HEADSET; 3192934b9659STakashi Iwai build_connector_control(mixer, map->map, &iterm, true); 31933528cd8fSJorge Sanjuan 31943528cd8fSJorge Sanjuan /* Output Term - Insertion control */ 31953528cd8fSJorge Sanjuan memset(&oterm, 0, sizeof(oterm)); 31963528cd8fSJorge Sanjuan oterm.id = UAC3_BADD_OT_ID3; 31973528cd8fSJorge Sanjuan oterm.type = UAC_BIDIR_TERMINAL_HEADSET; 3198934b9659STakashi Iwai build_connector_control(mixer, map->map, &oterm, false); 31993528cd8fSJorge Sanjuan } 32003528cd8fSJorge Sanjuan 320117156f23SRuslan Bilovol return 0; 320217156f23SRuslan Bilovol } 320317156f23SRuslan Bilovol 3204f0b5e634SDaniel Mack /* 3205f0b5e634SDaniel Mack * create mixer controls 3206f0b5e634SDaniel Mack * 3207f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 3208f0b5e634SDaniel Mack */ 3209f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 3210f0b5e634SDaniel Mack { 3211f0b5e634SDaniel Mack struct mixer_build state; 3212f0b5e634SDaniel Mack int err; 3213f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 321423caaf19SDaniel Mack void *p; 3215f0b5e634SDaniel Mack 3216f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 3217f0b5e634SDaniel Mack state.chip = mixer->chip; 3218f0b5e634SDaniel Mack state.mixer = mixer; 32191faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 32201faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 3221f0b5e634SDaniel Mack 3222f0b5e634SDaniel Mack /* check the mapping table */ 3223f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 3224f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 3225f0b5e634SDaniel Mack state.map = map->map; 3226f0b5e634SDaniel Mack state.selector_map = map->selector_map; 3227fef66ae7STakashi Iwai mixer->connector_map = map->connector_map; 3228f0b5e634SDaniel Mack break; 3229f0b5e634SDaniel Mack } 3230f0b5e634SDaniel Mack } 3231f0b5e634SDaniel Mack 323223caaf19SDaniel Mack p = NULL; 32336bc170e4SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, 32346bc170e4SDaniel Mack mixer->hostif->extralen, 32351faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 323657f87706STakashi Iwai if (!snd_usb_validate_audio_desc(p, mixer->protocol)) 323757f87706STakashi Iwai continue; /* skip invalid descriptor */ 323857f87706STakashi Iwai 323923caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 324069da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 324123caaf19SDaniel Mack 32426bc170e4SDaniel Mack /* mark terminal ID as visited */ 32436bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 324423caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 324523caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 324623caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 324723caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 324883ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 324923caaf19SDaniel Mack return err; 32509a2fe9b8SRuslan Bilovol } else if (mixer->protocol == UAC_VERSION_2) { 325123caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 325223caaf19SDaniel Mack 32536bc170e4SDaniel Mack /* mark terminal ID as visited */ 32546bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 3255f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 3256f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 3257f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 3258f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 325983ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 3260f0b5e634SDaniel Mack return err; 326109414207SDaniel Mack 32626bc170e4SDaniel Mack /* 32636bc170e4SDaniel Mack * For UAC2, use the same approach to also add the 32646bc170e4SDaniel Mack * clock selectors 32656bc170e4SDaniel Mack */ 326609414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 326783ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 326809414207SDaniel Mack return err; 32695a222e84SAndrew Chant 32707dc3c5a0STakashi Iwai if ((state.oterm.type & 0xff00) != 0x0100 && 32717dc3c5a0STakashi Iwai uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls), 32725a222e84SAndrew Chant UAC2_TE_CONNECTOR)) { 3273934b9659STakashi Iwai build_connector_control(state.mixer, state.map, 3274934b9659STakashi Iwai &state.oterm, false); 32755a222e84SAndrew Chant } 32769a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 32779a2fe9b8SRuslan Bilovol struct uac3_output_terminal_descriptor *desc = p; 32789a2fe9b8SRuslan Bilovol 32799a2fe9b8SRuslan Bilovol /* mark terminal ID as visited */ 32809a2fe9b8SRuslan Bilovol set_bit(desc->bTerminalID, state.unitbitmap); 32819a2fe9b8SRuslan Bilovol state.oterm.id = desc->bTerminalID; 32829a2fe9b8SRuslan Bilovol state.oterm.type = le16_to_cpu(desc->wTerminalType); 32839a2fe9b8SRuslan Bilovol state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr); 32849a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bSourceID); 32859a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 32869a2fe9b8SRuslan Bilovol return err; 32879a2fe9b8SRuslan Bilovol 32889a2fe9b8SRuslan Bilovol /* 32899a2fe9b8SRuslan Bilovol * For UAC3, use the same approach to also add the 32909a2fe9b8SRuslan Bilovol * clock selectors 32919a2fe9b8SRuslan Bilovol */ 32929a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bCSourceID); 32939a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 32949a2fe9b8SRuslan Bilovol return err; 32951d38f5d8SJorge Sanjuan 32967dc3c5a0STakashi Iwai if ((state.oterm.type & 0xff00) != 0x0100 && 32977dc3c5a0STakashi Iwai uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls), 32981d38f5d8SJorge Sanjuan UAC3_TE_INSERTION)) { 3299934b9659STakashi Iwai build_connector_control(state.mixer, state.map, 3300934b9659STakashi Iwai &state.oterm, false); 33011d38f5d8SJorge Sanjuan } 3302f0b5e634SDaniel Mack } 330323caaf19SDaniel Mack } 330423caaf19SDaniel Mack 3305f0b5e634SDaniel Mack return 0; 3306f0b5e634SDaniel Mack } 3307f0b5e634SDaniel Mack 3308fef66ae7STakashi Iwai static int delegate_notify(struct usb_mixer_interface *mixer, int unitid, 3309fef66ae7STakashi Iwai u8 *control, u8 *channel) 3310fef66ae7STakashi Iwai { 3311fef66ae7STakashi Iwai const struct usbmix_connector_map *map = mixer->connector_map; 3312fef66ae7STakashi Iwai 3313fef66ae7STakashi Iwai if (!map) 3314fef66ae7STakashi Iwai return unitid; 3315fef66ae7STakashi Iwai 3316fef66ae7STakashi Iwai for (; map->id; map++) { 3317fef66ae7STakashi Iwai if (map->id == unitid) { 3318fef66ae7STakashi Iwai if (control && map->control) 3319fef66ae7STakashi Iwai *control = map->control; 3320fef66ae7STakashi Iwai if (channel && map->channel) 3321fef66ae7STakashi Iwai *channel = map->channel; 3322fef66ae7STakashi Iwai return map->delegated_id; 3323fef66ae7STakashi Iwai } 3324fef66ae7STakashi Iwai } 3325fef66ae7STakashi Iwai return unitid; 3326fef66ae7STakashi Iwai } 3327fef66ae7STakashi Iwai 3328f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 3329f0b5e634SDaniel Mack { 33303360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3331f0b5e634SDaniel Mack 3332fef66ae7STakashi Iwai unitid = delegate_notify(mixer, unitid, NULL, NULL); 3333fef66ae7STakashi Iwai 33348c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 3335220345e9STakashi Iwai struct usb_mixer_elem_info *info; 3336220345e9STakashi Iwai 3337220345e9STakashi Iwai if (!list->is_std_info) 3338220345e9STakashi Iwai continue; 3339220345e9STakashi Iwai info = mixer_elem_list_to_info(list); 3340b2500b58SJulian Scheel /* invalidate cache, so the value is read from the device */ 3341b2500b58SJulian Scheel info->cached = 0; 3342f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 33433360b84bSTakashi Iwai &list->kctl->id); 3344f0b5e634SDaniel Mack } 3345b2500b58SJulian Scheel } 3346f0b5e634SDaniel Mack 3347f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 33483360b84bSTakashi Iwai struct usb_mixer_elem_list *list) 3349f0b5e634SDaniel Mack { 33508c558076STakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 3351362372ceSTakashi Iwai static const char * const val_types[] = { 335264752a95STakashi Iwai [USB_MIXER_BOOLEAN] = "BOOLEAN", 335364752a95STakashi Iwai [USB_MIXER_INV_BOOLEAN] = "INV_BOOLEAN", 335464752a95STakashi Iwai [USB_MIXER_S8] = "S8", 335564752a95STakashi Iwai [USB_MIXER_U8] = "U8", 335664752a95STakashi Iwai [USB_MIXER_S16] = "S16", 335764752a95STakashi Iwai [USB_MIXER_U16] = "U16", 335864752a95STakashi Iwai [USB_MIXER_S32] = "S32", 335964752a95STakashi Iwai [USB_MIXER_U32] = "U32", 336064752a95STakashi Iwai [USB_MIXER_BESPOKEN] = "BESPOKEN", 3361362372ceSTakashi Iwai }; 3362f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 33633360b84bSTakashi Iwai "channels=%i, type=\"%s\"\n", cval->head.id, 3364f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 3365f0b5e634SDaniel Mack val_types[cval->val_type]); 3366f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 3367f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 3368f0b5e634SDaniel Mack } 3369f0b5e634SDaniel Mack 3370f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 3371f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 3372f0b5e634SDaniel Mack { 3373f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 3374f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 33753360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3376f0b5e634SDaniel Mack int unitid; 3377f0b5e634SDaniel Mack 3378f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 3379f0b5e634SDaniel Mack snd_iprintf(buffer, 3380f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 33810aef31b7SChris Wulff chip->usb_id, mixer_ctrl_intf(mixer), 3382f0b5e634SDaniel Mack mixer->ignore_ctl_error); 3383f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 3384f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 33858c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 33863360b84bSTakashi Iwai snd_iprintf(buffer, " Unit: %i\n", list->id); 33873360b84bSTakashi Iwai if (list->kctl) 33883360b84bSTakashi Iwai snd_iprintf(buffer, 33893360b84bSTakashi Iwai " Control: name=\"%s\", index=%i\n", 33903360b84bSTakashi Iwai list->kctl->id.name, 33913360b84bSTakashi Iwai list->kctl->id.index); 33923360b84bSTakashi Iwai if (list->dump) 33933360b84bSTakashi Iwai list->dump(buffer, list); 33943360b84bSTakashi Iwai } 3395f0b5e634SDaniel Mack } 3396f0b5e634SDaniel Mack } 3397f0b5e634SDaniel Mack } 3398f0b5e634SDaniel Mack 3399e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 3400e213e9cfSDaniel Mack int attribute, int value, int index) 3401e213e9cfSDaniel Mack { 34023360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3403e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 3404e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 3405e213e9cfSDaniel Mack __u8 channel = value & 0xff; 3406191227d9SDaniel Mack unsigned int count = 0; 3407e213e9cfSDaniel Mack 3408e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 34090ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 34100ba41d91STakashi Iwai "%s(): bogus channel number %d\n", 3411e213e9cfSDaniel Mack __func__, channel); 3412e213e9cfSDaniel Mack return; 3413e213e9cfSDaniel Mack } 3414e213e9cfSDaniel Mack 3415fef66ae7STakashi Iwai unitid = delegate_notify(mixer, unitid, &control, &channel); 3416fef66ae7STakashi Iwai 34178c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) 3418191227d9SDaniel Mack count++; 3419191227d9SDaniel Mack 3420191227d9SDaniel Mack if (count == 0) 3421191227d9SDaniel Mack return; 3422191227d9SDaniel Mack 34238c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 34243360b84bSTakashi Iwai struct usb_mixer_elem_info *info; 34253360b84bSTakashi Iwai 34263360b84bSTakashi Iwai if (!list->kctl) 34273360b84bSTakashi Iwai continue; 3428220345e9STakashi Iwai if (!list->is_std_info) 3429220345e9STakashi Iwai continue; 34303360b84bSTakashi Iwai 34318c558076STakashi Iwai info = mixer_elem_list_to_info(list); 3432191227d9SDaniel Mack if (count > 1 && info->control != control) 3433e213e9cfSDaniel Mack continue; 3434e213e9cfSDaniel Mack 3435e213e9cfSDaniel Mack switch (attribute) { 3436e213e9cfSDaniel Mack case UAC2_CS_CUR: 3437e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 3438e213e9cfSDaniel Mack if (channel) 3439e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 3440e213e9cfSDaniel Mack else /* master channel */ 3441e213e9cfSDaniel Mack info->cached = 0; 3442e213e9cfSDaniel Mack 3443e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 34443360b84bSTakashi Iwai &info->head.kctl->id); 3445e213e9cfSDaniel Mack break; 3446e213e9cfSDaniel Mack 3447e213e9cfSDaniel Mack case UAC2_CS_RANGE: 3448e213e9cfSDaniel Mack /* TODO */ 3449e213e9cfSDaniel Mack break; 3450e213e9cfSDaniel Mack 3451e213e9cfSDaniel Mack case UAC2_CS_MEM: 3452e213e9cfSDaniel Mack /* TODO */ 3453e213e9cfSDaniel Mack break; 3454e213e9cfSDaniel Mack 3455e213e9cfSDaniel Mack default: 34560ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 34570ba41d91STakashi Iwai "unknown attribute %d in interrupt\n", 3458e213e9cfSDaniel Mack attribute); 3459e213e9cfSDaniel Mack break; 3460e213e9cfSDaniel Mack } /* switch */ 3461e213e9cfSDaniel Mack } 3462e213e9cfSDaniel Mack } 3463e213e9cfSDaniel Mack 3464e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 3465f0b5e634SDaniel Mack { 3466f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 3467e213e9cfSDaniel Mack int len = urb->actual_length; 3468edf7de31SOliver Neukum int ustatus = urb->status; 3469f0b5e634SDaniel Mack 3470edf7de31SOliver Neukum if (ustatus != 0) 3471e213e9cfSDaniel Mack goto requeue; 3472f0b5e634SDaniel Mack 3473e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 3474e213e9cfSDaniel Mack struct uac1_status_word *status; 3475e213e9cfSDaniel Mack 3476e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 3477e213e9cfSDaniel Mack len >= sizeof(*status); 3478e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 34790ba41d91STakashi Iwai dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", 3480e213e9cfSDaniel Mack status->bStatusType, 3481e213e9cfSDaniel Mack status->bOriginator); 3482e213e9cfSDaniel Mack 3483f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 3484e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 3485e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 3486f0b5e634SDaniel Mack continue; 3487e213e9cfSDaniel Mack 3488e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 3489e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 3490f0b5e634SDaniel Mack else 3491e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 3492e213e9cfSDaniel Mack } 3493e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 3494e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 3495e213e9cfSDaniel Mack 3496e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 3497e213e9cfSDaniel Mack len >= sizeof(*msg); 3498e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 3499e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 3500e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 3501e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 3502e213e9cfSDaniel Mack continue; 3503e213e9cfSDaniel Mack 3504e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 3505e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 3506e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 3507f0b5e634SDaniel Mack } 3508f0b5e634SDaniel Mack } 3509e213e9cfSDaniel Mack 3510e213e9cfSDaniel Mack requeue: 35116bc170e4SDaniel Mack if (ustatus != -ENOENT && 35126bc170e4SDaniel Mack ustatus != -ECONNRESET && 35136bc170e4SDaniel Mack ustatus != -ESHUTDOWN) { 3514f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 3515f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 3516f0b5e634SDaniel Mack } 3517f0b5e634SDaniel Mack } 3518f0b5e634SDaniel Mack 3519f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 3520f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 3521f0b5e634SDaniel Mack { 3522f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 3523f0b5e634SDaniel Mack void *transfer_buffer; 3524f0b5e634SDaniel Mack int buffer_length; 3525f0b5e634SDaniel Mack unsigned int epnum; 3526f0b5e634SDaniel Mack 3527f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 35281faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 3529f0b5e634SDaniel Mack return 0; 35301faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 3531f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 3532f0b5e634SDaniel Mack return 0; 3533f0b5e634SDaniel Mack 3534f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 3535f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 3536f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 3537f0b5e634SDaniel Mack if (!transfer_buffer) 3538f0b5e634SDaniel Mack return -ENOMEM; 3539f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 3540f0b5e634SDaniel Mack if (!mixer->urb) { 3541f0b5e634SDaniel Mack kfree(transfer_buffer); 3542f0b5e634SDaniel Mack return -ENOMEM; 3543f0b5e634SDaniel Mack } 3544f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 3545f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 3546f0b5e634SDaniel Mack transfer_buffer, buffer_length, 3547e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 3548f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 3549f0b5e634SDaniel Mack return 0; 3550f0b5e634SDaniel Mack } 3551f0b5e634SDaniel Mack 35523c69dc91STakashi Iwai int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) 3553f0b5e634SDaniel Mack { 3554c0a142e2STakashi Iwai static const struct snd_device_ops dev_ops = { 3555f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 3556f0b5e634SDaniel Mack }; 3557f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 355823caaf19SDaniel Mack int err; 3559f0b5e634SDaniel Mack 3560f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 3561f0b5e634SDaniel Mack 3562f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 3563f0b5e634SDaniel Mack if (!mixer) 3564f0b5e634SDaniel Mack return -ENOMEM; 3565f0b5e634SDaniel Mack mixer->chip = chip; 35663c69dc91STakashi Iwai mixer->ignore_ctl_error = !!(chip->quirk_flags & QUIRK_FLAG_IGNORE_CTL_ERROR); 3567f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 3568f0b5e634SDaniel Mack GFP_KERNEL); 3569f0b5e634SDaniel Mack if (!mixer->id_elems) { 3570f0b5e634SDaniel Mack kfree(mixer); 3571f0b5e634SDaniel Mack return -ENOMEM; 3572f0b5e634SDaniel Mack } 3573f0b5e634SDaniel Mack 35741faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 35751faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 3576a2acad82SClemens Ladisch case UAC_VERSION_1: 3577a2acad82SClemens Ladisch default: 3578a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 3579a2acad82SClemens Ladisch break; 3580a2acad82SClemens Ladisch case UAC_VERSION_2: 3581a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 3582a2acad82SClemens Ladisch break; 35839a2fe9b8SRuslan Bilovol case UAC_VERSION_3: 35849a2fe9b8SRuslan Bilovol mixer->protocol = UAC_VERSION_3; 35859a2fe9b8SRuslan Bilovol break; 3586a2acad82SClemens Ladisch } 3587f0b5e634SDaniel Mack 358817156f23SRuslan Bilovol if (mixer->protocol == UAC_VERSION_3 && 358917156f23SRuslan Bilovol chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { 3590f25ecf8fSTakashi Iwai err = snd_usb_mixer_controls_badd(mixer, ctrlif); 3591f25ecf8fSTakashi Iwai if (err < 0) 3592f0b5e634SDaniel Mack goto _error; 3593f25ecf8fSTakashi Iwai } else { 3594f25ecf8fSTakashi Iwai err = snd_usb_mixer_controls(mixer); 3595f25ecf8fSTakashi Iwai if (err < 0) 3596f25ecf8fSTakashi Iwai goto _error; 3597ad6baae6SJorge Sanjuan } 3598ad6baae6SJorge Sanjuan 3599f25ecf8fSTakashi Iwai err = snd_usb_mixer_status_create(mixer); 3600f25ecf8fSTakashi Iwai if (err < 0) 360117156f23SRuslan Bilovol goto _error; 3602ad6baae6SJorge Sanjuan 3603328e9f69STakashi Iwai err = snd_usb_mixer_apply_create_quirk(mixer); 3604328e9f69STakashi Iwai if (err < 0) 3605328e9f69STakashi Iwai goto _error; 3606f0b5e634SDaniel Mack 36079cbb2808STakashi Iwai err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); 3608f0b5e634SDaniel Mack if (err < 0) 3609f0b5e634SDaniel Mack goto _error; 3610f0b5e634SDaniel Mack 36117449054aSTakashi Iwai if (list_empty(&chip->mixer_list)) 36127449054aSTakashi Iwai snd_card_ro_proc_new(chip->card, "usbmixer", chip, 36137449054aSTakashi Iwai snd_usb_mixer_proc_read); 3614f0b5e634SDaniel Mack 3615f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 3616f0b5e634SDaniel Mack return 0; 3617f0b5e634SDaniel Mack 3618f0b5e634SDaniel Mack _error: 3619f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 3620f0b5e634SDaniel Mack return err; 3621f0b5e634SDaniel Mack } 3622f0b5e634SDaniel Mack 3623a6cece9dSTakashi Iwai void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) 3624f0b5e634SDaniel Mack { 3625124751d5STakashi Iwai if (mixer->disconnected) 3626124751d5STakashi Iwai return; 3627124751d5STakashi Iwai if (mixer->urb) 3628f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 3629124751d5STakashi Iwai if (mixer->rc_urb) 3630f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 36319e4d5c1bSGeoffrey D. Bennett if (mixer->private_free) 36329e4d5c1bSGeoffrey D. Bennett mixer->private_free(mixer); 3633124751d5STakashi Iwai mixer->disconnected = true; 3634f0b5e634SDaniel Mack } 3635400362f1STakashi Iwai 3636400362f1STakashi Iwai /* stop any bus activity of a mixer */ 3637400362f1STakashi Iwai static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 3638400362f1STakashi Iwai { 3639400362f1STakashi Iwai usb_kill_urb(mixer->urb); 3640400362f1STakashi Iwai usb_kill_urb(mixer->rc_urb); 3641400362f1STakashi Iwai } 3642400362f1STakashi Iwai 3643400362f1STakashi Iwai static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 3644400362f1STakashi Iwai { 3645400362f1STakashi Iwai int err; 3646400362f1STakashi Iwai 3647400362f1STakashi Iwai if (mixer->urb) { 3648400362f1STakashi Iwai err = usb_submit_urb(mixer->urb, GFP_NOIO); 3649400362f1STakashi Iwai if (err < 0) 3650400362f1STakashi Iwai return err; 3651400362f1STakashi Iwai } 3652400362f1STakashi Iwai 3653400362f1STakashi Iwai return 0; 3654400362f1STakashi Iwai } 3655400362f1STakashi Iwai 3656400362f1STakashi Iwai int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) 3657400362f1STakashi Iwai { 3658400362f1STakashi Iwai snd_usb_mixer_inactivate(mixer); 36599e4d5c1bSGeoffrey D. Bennett if (mixer->private_suspend) 36609e4d5c1bSGeoffrey D. Bennett mixer->private_suspend(mixer); 3661400362f1STakashi Iwai return 0; 3662400362f1STakashi Iwai } 3663400362f1STakashi Iwai 36643360b84bSTakashi Iwai static int restore_mixer_value(struct usb_mixer_elem_list *list) 3665400362f1STakashi Iwai { 36668c558076STakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 3667400362f1STakashi Iwai int c, err, idx; 3668400362f1STakashi Iwai 3669785b6f29STakashi Iwai if (cval->val_type == USB_MIXER_BESPOKEN) 3670785b6f29STakashi Iwai return 0; 3671785b6f29STakashi Iwai 3672400362f1STakashi Iwai if (cval->cmask) { 3673400362f1STakashi Iwai idx = 0; 3674400362f1STakashi Iwai for (c = 0; c < MAX_CHANNELS; c++) { 3675400362f1STakashi Iwai if (!(cval->cmask & (1 << c))) 3676400362f1STakashi Iwai continue; 36776aa6925cSYao-Wen Mao if (cval->cached & (1 << (c + 1))) { 3678eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, c + 1, idx, 3679400362f1STakashi Iwai cval->cache_val[idx]); 3680400362f1STakashi Iwai if (err < 0) 3681400362f1STakashi Iwai return err; 3682400362f1STakashi Iwai } 3683400362f1STakashi Iwai idx++; 3684400362f1STakashi Iwai } 3685400362f1STakashi Iwai } else { 3686400362f1STakashi Iwai /* master */ 3687400362f1STakashi Iwai if (cval->cached) { 3688eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); 3689400362f1STakashi Iwai if (err < 0) 3690400362f1STakashi Iwai return err; 3691400362f1STakashi Iwai } 3692400362f1STakashi Iwai } 3693400362f1STakashi Iwai 3694400362f1STakashi Iwai return 0; 3695400362f1STakashi Iwai } 3696400362f1STakashi Iwai 36977b9cf903STakashi Iwai int snd_usb_mixer_resume(struct usb_mixer_interface *mixer) 3698400362f1STakashi Iwai { 36993360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3700400362f1STakashi Iwai int id, err; 3701400362f1STakashi Iwai 3702400362f1STakashi Iwai /* restore cached mixer values */ 3703400362f1STakashi Iwai for (id = 0; id < MAX_ID_ELEMS; id++) { 37048c558076STakashi Iwai for_each_mixer_elem(list, mixer, id) { 37057b9cf903STakashi Iwai if (list->resume) { 37067b9cf903STakashi Iwai err = list->resume(list); 3707400362f1STakashi Iwai if (err < 0) 3708400362f1STakashi Iwai return err; 3709400362f1STakashi Iwai } 3710400362f1STakashi Iwai } 3711400362f1STakashi Iwai } 3712400362f1STakashi Iwai 3713964af639STakashi Iwai snd_usb_mixer_resume_quirk(mixer); 3714964af639STakashi Iwai 3715400362f1STakashi Iwai return snd_usb_mixer_activate(mixer); 3716400362f1STakashi Iwai } 37173360b84bSTakashi Iwai 37183360b84bSTakashi Iwai void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, 37193360b84bSTakashi Iwai struct usb_mixer_interface *mixer, 37203360b84bSTakashi Iwai int unitid) 37213360b84bSTakashi Iwai { 37223360b84bSTakashi Iwai list->mixer = mixer; 37233360b84bSTakashi Iwai list->id = unitid; 37243360b84bSTakashi Iwai list->dump = snd_usb_mixer_dump_cval; 37257b9cf903STakashi Iwai list->resume = restore_mixer_value; 37263360b84bSTakashi Iwai } 3727