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 { 118f0b5e634SDaniel Mack if (!p || !p->name) 119f0b5e634SDaniel Mack return 0; 120f0b5e634SDaniel Mack 121f0b5e634SDaniel Mack buflen--; 122f0b5e634SDaniel Mack return strlcpy(buf, p->name, buflen); 123f0b5e634SDaniel Mack } 124f0b5e634SDaniel Mack 1255aeee342STakashi Iwai /* ignore the error value if ignore_ctl_error flag is set */ 1265aeee342STakashi Iwai #define filter_error(cval, err) \ 1273360b84bSTakashi Iwai ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) 1285aeee342STakashi Iwai 129f0b5e634SDaniel Mack /* check whether the control should be ignored */ 130f0b5e634SDaniel Mack static inline int 131f0b5e634SDaniel Mack check_ignored_ctl(const struct usbmix_name_map *p) 132f0b5e634SDaniel Mack { 133f0b5e634SDaniel Mack if (!p || p->name || p->dB) 134f0b5e634SDaniel Mack return 0; 135f0b5e634SDaniel Mack return 1; 136f0b5e634SDaniel Mack } 137f0b5e634SDaniel Mack 138f0b5e634SDaniel Mack /* dB mapping */ 139f0b5e634SDaniel Mack static inline void check_mapped_dB(const struct usbmix_name_map *p, 140f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 141f0b5e634SDaniel Mack { 142f0b5e634SDaniel Mack if (p && p->dB) { 143f0b5e634SDaniel Mack cval->dBmin = p->dB->min; 144f0b5e634SDaniel Mack cval->dBmax = p->dB->max; 14538b65190STakashi Iwai cval->initialized = 1; 146f0b5e634SDaniel Mack } 147f0b5e634SDaniel Mack } 148f0b5e634SDaniel Mack 149f0b5e634SDaniel Mack /* get the mapped selector source name */ 150f0b5e634SDaniel Mack static int check_mapped_selector_name(struct mixer_build *state, int unitid, 151f0b5e634SDaniel Mack int index, char *buf, int buflen) 152f0b5e634SDaniel Mack { 153f0b5e634SDaniel Mack const struct usbmix_selector_map *p; 154f0b5e634SDaniel Mack 155f0b5e634SDaniel Mack if (!state->selector_map) 156f0b5e634SDaniel Mack return 0; 157f0b5e634SDaniel Mack for (p = state->selector_map; p->id; p++) { 158f0b5e634SDaniel Mack if (p->id == unitid && index < p->count) 159f0b5e634SDaniel Mack return strlcpy(buf, p->names[index], buflen); 160f0b5e634SDaniel Mack } 161f0b5e634SDaniel Mack return 0; 162f0b5e634SDaniel Mack } 163f0b5e634SDaniel Mack 164f0b5e634SDaniel Mack /* 165f0b5e634SDaniel Mack * find an audio control unit with the given unit id 166f0b5e634SDaniel Mack */ 1676bc170e4SDaniel Mack static void *find_audio_control_unit(struct mixer_build *state, 1686bc170e4SDaniel Mack unsigned char unit) 169f0b5e634SDaniel Mack { 17067e1daa0SDaniel Mack /* we just parse the header */ 17167e1daa0SDaniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 172f0b5e634SDaniel Mack 17367e1daa0SDaniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 174f0b5e634SDaniel Mack USB_DT_CS_INTERFACE)) != NULL) { 17567e1daa0SDaniel Mack if (hdr->bLength >= 4 && 17667e1daa0SDaniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 1779a2fe9b8SRuslan Bilovol hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER && 17867e1daa0SDaniel Mack hdr->bUnitID == unit) 17967e1daa0SDaniel Mack return hdr; 180f0b5e634SDaniel Mack } 18167e1daa0SDaniel Mack 182f0b5e634SDaniel Mack return NULL; 183f0b5e634SDaniel Mack } 184f0b5e634SDaniel Mack 185f0b5e634SDaniel Mack /* 186f0b5e634SDaniel Mack * copy a string with the given id 187f0b5e634SDaniel Mack */ 188eccfc1b8SRuslan Bilovol static int snd_usb_copy_string_desc(struct snd_usb_audio *chip, 1896bc170e4SDaniel Mack int index, char *buf, int maxlen) 190f0b5e634SDaniel Mack { 191eccfc1b8SRuslan Bilovol int len = usb_string(chip->dev, index, buf, maxlen - 1); 192251552a2SJaejoong Kim 193251552a2SJaejoong Kim if (len < 0) 194251552a2SJaejoong Kim return 0; 195251552a2SJaejoong Kim 196f0b5e634SDaniel Mack buf[len] = 0; 197f0b5e634SDaniel Mack return len; 198f0b5e634SDaniel Mack } 199f0b5e634SDaniel Mack 200f0b5e634SDaniel Mack /* 201f0b5e634SDaniel Mack * convert from the byte/word on usb descriptor to the zero-based integer 202f0b5e634SDaniel Mack */ 203f0b5e634SDaniel Mack static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 204f0b5e634SDaniel Mack { 205f0b5e634SDaniel Mack switch (cval->val_type) { 206f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 207f0b5e634SDaniel Mack return !!val; 208f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 209f0b5e634SDaniel Mack return !val; 210f0b5e634SDaniel Mack case USB_MIXER_U8: 211f0b5e634SDaniel Mack val &= 0xff; 212f0b5e634SDaniel Mack break; 213f0b5e634SDaniel Mack case USB_MIXER_S8: 214f0b5e634SDaniel Mack val &= 0xff; 215f0b5e634SDaniel Mack if (val >= 0x80) 216f0b5e634SDaniel Mack val -= 0x100; 217f0b5e634SDaniel Mack break; 218f0b5e634SDaniel Mack case USB_MIXER_U16: 219f0b5e634SDaniel Mack val &= 0xffff; 220f0b5e634SDaniel Mack break; 221f0b5e634SDaniel Mack case USB_MIXER_S16: 222f0b5e634SDaniel Mack val &= 0xffff; 223f0b5e634SDaniel Mack if (val >= 0x8000) 224f0b5e634SDaniel Mack val -= 0x10000; 225f0b5e634SDaniel Mack break; 226f0b5e634SDaniel Mack } 227f0b5e634SDaniel Mack return val; 228f0b5e634SDaniel Mack } 229f0b5e634SDaniel Mack 230f0b5e634SDaniel Mack /* 231f0b5e634SDaniel Mack * convert from the zero-based int to the byte/word for usb descriptor 232f0b5e634SDaniel Mack */ 233f0b5e634SDaniel Mack static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 234f0b5e634SDaniel Mack { 235f0b5e634SDaniel Mack switch (cval->val_type) { 236f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 237f0b5e634SDaniel Mack return !!val; 238f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 239f0b5e634SDaniel Mack return !val; 240f0b5e634SDaniel Mack case USB_MIXER_S8: 241f0b5e634SDaniel Mack case USB_MIXER_U8: 242f0b5e634SDaniel Mack return val & 0xff; 243f0b5e634SDaniel Mack case USB_MIXER_S16: 244f0b5e634SDaniel Mack case USB_MIXER_U16: 245f0b5e634SDaniel Mack return val & 0xffff; 246f0b5e634SDaniel Mack } 247f0b5e634SDaniel Mack return 0; /* not reached */ 248f0b5e634SDaniel Mack } 249f0b5e634SDaniel Mack 250f0b5e634SDaniel Mack static int get_relative_value(struct usb_mixer_elem_info *cval, int val) 251f0b5e634SDaniel Mack { 252f0b5e634SDaniel Mack if (!cval->res) 253f0b5e634SDaniel Mack cval->res = 1; 254f0b5e634SDaniel Mack if (val < cval->min) 255f0b5e634SDaniel Mack return 0; 256f0b5e634SDaniel Mack else if (val >= cval->max) 257f0b5e634SDaniel Mack return (cval->max - cval->min + cval->res - 1) / cval->res; 258f0b5e634SDaniel Mack else 259f0b5e634SDaniel Mack return (val - cval->min) / cval->res; 260f0b5e634SDaniel Mack } 261f0b5e634SDaniel Mack 262f0b5e634SDaniel Mack static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 263f0b5e634SDaniel Mack { 264f0b5e634SDaniel Mack if (val < 0) 265f0b5e634SDaniel Mack return cval->min; 266f0b5e634SDaniel Mack if (!cval->res) 267f0b5e634SDaniel Mack cval->res = 1; 268f0b5e634SDaniel Mack val *= cval->res; 269f0b5e634SDaniel Mack val += cval->min; 270f0b5e634SDaniel Mack if (val > cval->max) 271f0b5e634SDaniel Mack return cval->max; 272f0b5e634SDaniel Mack return val; 273f0b5e634SDaniel Mack } 274f0b5e634SDaniel Mack 275bc18e31cSJulian Scheel static int uac2_ctl_value_size(int val_type) 276bc18e31cSJulian Scheel { 277bc18e31cSJulian Scheel switch (val_type) { 278bc18e31cSJulian Scheel case USB_MIXER_S32: 279bc18e31cSJulian Scheel case USB_MIXER_U32: 280bc18e31cSJulian Scheel return 4; 281bc18e31cSJulian Scheel case USB_MIXER_S16: 282bc18e31cSJulian Scheel case USB_MIXER_U16: 283bc18e31cSJulian Scheel return 2; 284bc18e31cSJulian Scheel default: 285bc18e31cSJulian Scheel return 1; 286bc18e31cSJulian Scheel } 287bc18e31cSJulian Scheel return 0; /* unreachable */ 288bc18e31cSJulian Scheel } 289bc18e31cSJulian Scheel 290f0b5e634SDaniel Mack 291f0b5e634SDaniel Mack /* 292f0b5e634SDaniel Mack * retrieve a mixer value 293f0b5e634SDaniel Mack */ 294f0b5e634SDaniel Mack 2956bc170e4SDaniel Mack static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, 2966bc170e4SDaniel Mack int validx, int *value_ret) 297f0b5e634SDaniel Mack { 2983360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 299f0b5e634SDaniel Mack unsigned char buf[2]; 300f0b5e634SDaniel Mack int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 301f0b5e634SDaniel Mack int timeout = 10; 302978520b7STakashi Iwai int idx = 0, err; 303f0b5e634SDaniel Mack 30447ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 30588a8516aSOliver Neukum if (err < 0) 30688a8516aSOliver Neukum return -EIO; 3076bc170e4SDaniel Mack 308f0b5e634SDaniel Mack while (timeout-- > 0) { 3093360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3105a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 311f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3125a9a8ecaSStephen Barber validx, idx, buf, val_len); 3135a9a8ecaSStephen Barber if (err >= val_len) { 314f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 315978520b7STakashi Iwai err = 0; 316978520b7STakashi Iwai goto out; 3175a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 3185a9a8ecaSStephen Barber goto out; 319f0b5e634SDaniel Mack } 320f0b5e634SDaniel Mack } 3210ba41d91STakashi Iwai usb_audio_dbg(chip, 3220ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 323978520b7STakashi Iwai request, validx, idx, cval->val_type); 324978520b7STakashi Iwai err = -EINVAL; 325978520b7STakashi Iwai 326978520b7STakashi Iwai out: 32747ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 328978520b7STakashi Iwai return err; 329f0b5e634SDaniel Mack } 330f0b5e634SDaniel Mack 3316bc170e4SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, 3326bc170e4SDaniel Mack int validx, int *value_ret) 33323caaf19SDaniel Mack { 3343360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 335447cae58SKirill Marinushkin /* enough space for one range */ 336447cae58SKirill Marinushkin unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; 33723caaf19SDaniel Mack unsigned char *val; 338447cae58SKirill Marinushkin int idx = 0, ret, val_size, size; 33923caaf19SDaniel Mack __u8 bRequest; 34023caaf19SDaniel Mack 341447cae58SKirill Marinushkin val_size = uac2_ctl_value_size(cval->val_type); 342447cae58SKirill Marinushkin 343e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 344e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 345447cae58SKirill Marinushkin size = val_size; 346e8bdb6bbSDaniel Mack } else { 347e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 348447cae58SKirill Marinushkin size = sizeof(__u16) + 3 * val_size; 349e8bdb6bbSDaniel Mack } 350e8bdb6bbSDaniel Mack 351e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 35223caaf19SDaniel Mack 35347ab1545STakashi Iwai ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 35488a8516aSOliver Neukum if (ret) 35588a8516aSOliver Neukum goto error; 35688a8516aSOliver Neukum 3573360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 3583d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 35923caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 360978520b7STakashi Iwai validx, idx, buf, size); 36147ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 36223caaf19SDaniel Mack 36323caaf19SDaniel Mack if (ret < 0) { 36488a8516aSOliver Neukum error: 3650ba41d91STakashi Iwai usb_audio_err(chip, 3660ba41d91STakashi Iwai "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 367978520b7STakashi Iwai request, validx, idx, cval->val_type); 36823caaf19SDaniel Mack return ret; 36923caaf19SDaniel Mack } 37023caaf19SDaniel Mack 371e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 372e8bdb6bbSDaniel Mack 37323caaf19SDaniel Mack switch (request) { 37423caaf19SDaniel Mack case UAC_GET_CUR: 37523caaf19SDaniel Mack val = buf; 37623caaf19SDaniel Mack break; 37723caaf19SDaniel Mack case UAC_GET_MIN: 37823caaf19SDaniel Mack val = buf + sizeof(__u16); 37923caaf19SDaniel Mack break; 38023caaf19SDaniel Mack case UAC_GET_MAX: 381447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size; 38223caaf19SDaniel Mack break; 38323caaf19SDaniel Mack case UAC_GET_RES: 384447cae58SKirill Marinushkin val = buf + sizeof(__u16) + val_size * 2; 38523caaf19SDaniel Mack break; 38623caaf19SDaniel Mack default: 38723caaf19SDaniel Mack return -EINVAL; 38823caaf19SDaniel Mack } 38923caaf19SDaniel Mack 390447cae58SKirill Marinushkin *value_ret = convert_signed_value(cval, 391447cae58SKirill Marinushkin snd_usb_combine_bytes(val, val_size)); 39223caaf19SDaniel Mack 39323caaf19SDaniel Mack return 0; 39423caaf19SDaniel Mack } 39523caaf19SDaniel Mack 3966bc170e4SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, 3976bc170e4SDaniel Mack int validx, int *value_ret) 39823caaf19SDaniel Mack { 3999f814105SEldad Zack validx += cval->idx_off; 4009f814105SEldad Zack 4013360b84bSTakashi Iwai return (cval->head.mixer->protocol == UAC_VERSION_1) ? 40223caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 40323caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 40423caaf19SDaniel Mack } 40523caaf19SDaniel Mack 4066bc170e4SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, 4076bc170e4SDaniel Mack int validx, int *value) 408f0b5e634SDaniel Mack { 409f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 410f0b5e634SDaniel Mack } 411f0b5e634SDaniel Mack 412f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 413f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 414f0b5e634SDaniel Mack int channel, int *value) 415f0b5e634SDaniel Mack { 4166bc170e4SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, 4176bc170e4SDaniel Mack (cval->control << 8) | channel, 4186bc170e4SDaniel Mack value); 419f0b5e634SDaniel Mack } 420f0b5e634SDaniel Mack 421eef90451SChris J Arges int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, 422f0b5e634SDaniel Mack int channel, int index, int *value) 423f0b5e634SDaniel Mack { 424f0b5e634SDaniel Mack int err; 425f0b5e634SDaniel Mack 426f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 427f0b5e634SDaniel Mack *value = cval->cache_val[index]; 428f0b5e634SDaniel Mack return 0; 429f0b5e634SDaniel Mack } 430f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 431f0b5e634SDaniel Mack if (err < 0) { 4323360b84bSTakashi Iwai if (!cval->head.mixer->ignore_ctl_error) 4333360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 4340ba41d91STakashi Iwai "cannot get current value for control %d ch %d: err = %d\n", 435f0b5e634SDaniel Mack cval->control, channel, err); 436f0b5e634SDaniel Mack return err; 437f0b5e634SDaniel Mack } 438f0b5e634SDaniel Mack cval->cached |= 1 << channel; 439f0b5e634SDaniel Mack cval->cache_val[index] = *value; 440f0b5e634SDaniel Mack return 0; 441f0b5e634SDaniel Mack } 442f0b5e634SDaniel Mack 443f0b5e634SDaniel Mack /* 444f0b5e634SDaniel Mack * set a mixer value 445f0b5e634SDaniel Mack */ 446f0b5e634SDaniel Mack 447f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 448f0b5e634SDaniel Mack int request, int validx, int value_set) 449f0b5e634SDaniel Mack { 4503360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 451bc18e31cSJulian Scheel unsigned char buf[4]; 452978520b7STakashi Iwai int idx = 0, val_len, err, timeout = 10; 45323caaf19SDaniel Mack 4549f814105SEldad Zack validx += cval->idx_off; 4559f814105SEldad Zack 4569a2fe9b8SRuslan Bilovol 4573360b84bSTakashi Iwai if (cval->head.mixer->protocol == UAC_VERSION_1) { 45823caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 4599a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 460bc18e31cSJulian Scheel val_len = uac2_ctl_value_size(cval->val_type); 46123caaf19SDaniel Mack 46223caaf19SDaniel Mack /* FIXME */ 46323caaf19SDaniel Mack if (request != UAC_SET_CUR) { 4640ba41d91STakashi Iwai usb_audio_dbg(chip, "RANGE setting not yet supported\n"); 46523caaf19SDaniel Mack return -EINVAL; 46623caaf19SDaniel Mack } 46723caaf19SDaniel Mack 46823caaf19SDaniel Mack request = UAC2_CS_CUR; 46923caaf19SDaniel Mack } 470f0b5e634SDaniel Mack 471f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 472f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 473f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 474bc18e31cSJulian Scheel buf[2] = (value_set >> 16) & 0xff; 475bc18e31cSJulian Scheel buf[3] = (value_set >> 24) & 0xff; 47647ab1545STakashi Iwai 47747ab1545STakashi Iwai err = snd_usb_lock_shutdown(chip); 47888a8516aSOliver Neukum if (err < 0) 47988a8516aSOliver Neukum return -EIO; 48047ab1545STakashi Iwai 481978520b7STakashi Iwai while (timeout-- > 0) { 4823360b84bSTakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 4835a9a8ecaSStephen Barber err = snd_usb_ctl_msg(chip->dev, 4843d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 485f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 4865a9a8ecaSStephen Barber validx, idx, buf, val_len); 4875a9a8ecaSStephen Barber if (err >= 0) { 488978520b7STakashi Iwai err = 0; 489978520b7STakashi Iwai goto out; 4905a9a8ecaSStephen Barber } else if (err == -ETIMEDOUT) { 4915a9a8ecaSStephen Barber goto out; 49288a8516aSOliver Neukum } 493978520b7STakashi Iwai } 4940ba41d91STakashi Iwai usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 495978520b7STakashi Iwai request, validx, idx, cval->val_type, buf[0], buf[1]); 496978520b7STakashi Iwai err = -EINVAL; 497978520b7STakashi Iwai 498978520b7STakashi Iwai out: 49947ab1545STakashi Iwai snd_usb_unlock_shutdown(chip); 500978520b7STakashi Iwai return err; 501f0b5e634SDaniel Mack } 502f0b5e634SDaniel Mack 5036bc170e4SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, 5046bc170e4SDaniel Mack int validx, int value) 505f0b5e634SDaniel Mack { 506f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 507f0b5e634SDaniel Mack } 508f0b5e634SDaniel Mack 509eef90451SChris J Arges int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 510f0b5e634SDaniel Mack int index, int value) 511f0b5e634SDaniel Mack { 512f0b5e634SDaniel Mack int err; 513a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 514a6a33259SDaniel Mack cval->master_readonly : 515a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 516a6a33259SDaniel Mack 517a6a33259SDaniel Mack if (read_only) { 5183360b84bSTakashi Iwai usb_audio_dbg(cval->head.mixer->chip, 5190ba41d91STakashi Iwai "%s(): channel %d of control %d is read_only\n", 520a6a33259SDaniel Mack __func__, channel, cval->control); 521a6a33259SDaniel Mack return 0; 522a6a33259SDaniel Mack } 523a6a33259SDaniel Mack 5246bc170e4SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, 5256bc170e4SDaniel Mack UAC_SET_CUR, (cval->control << 8) | channel, 526f0b5e634SDaniel Mack value); 527f0b5e634SDaniel Mack if (err < 0) 528f0b5e634SDaniel Mack return err; 529f0b5e634SDaniel Mack cval->cached |= 1 << channel; 530f0b5e634SDaniel Mack cval->cache_val[index] = value; 531f0b5e634SDaniel Mack return 0; 532f0b5e634SDaniel Mack } 533f0b5e634SDaniel Mack 534f0b5e634SDaniel Mack /* 535f0b5e634SDaniel Mack * TLV callback for mixer volume controls 536f0b5e634SDaniel Mack */ 537285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 538f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 539f0b5e634SDaniel Mack { 540f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 541f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 542f0b5e634SDaniel Mack 543f0b5e634SDaniel Mack if (size < sizeof(scale)) 544f0b5e634SDaniel Mack return -ENOMEM; 5450f174b35STakashi Iwai if (cval->min_mute) 5460f174b35STakashi Iwai scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; 547f0b5e634SDaniel Mack scale[2] = cval->dBmin; 548f0b5e634SDaniel Mack scale[3] = cval->dBmax; 549f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 550f0b5e634SDaniel Mack return -EFAULT; 551f0b5e634SDaniel Mack return 0; 552f0b5e634SDaniel Mack } 553f0b5e634SDaniel Mack 554f0b5e634SDaniel Mack /* 555f0b5e634SDaniel Mack * parser routines begin here... 556f0b5e634SDaniel Mack */ 557f0b5e634SDaniel Mack 558f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 559f0b5e634SDaniel Mack 560f0b5e634SDaniel Mack 561f0b5e634SDaniel Mack /* 562f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 563f0b5e634SDaniel Mack * used for mixer unit parser 564f0b5e634SDaniel Mack */ 5656bc170e4SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, 5666bc170e4SDaniel Mack int ich, int och, int num_outs) 567f0b5e634SDaniel Mack { 568f0b5e634SDaniel Mack int idx = ich * num_outs + och; 569f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 570f0b5e634SDaniel Mack } 571f0b5e634SDaniel Mack 572f0b5e634SDaniel Mack /* 573f0b5e634SDaniel Mack * add an alsa control element 574f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 575f0b5e634SDaniel Mack * 576f0b5e634SDaniel Mack * if failed, give up and free the control instance. 577f0b5e634SDaniel Mack */ 578f0b5e634SDaniel Mack 5793360b84bSTakashi Iwai int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, 580ef9d5970SDaniel Mack struct snd_kcontrol *kctl) 581f0b5e634SDaniel Mack { 5823360b84bSTakashi Iwai struct usb_mixer_interface *mixer = list->mixer; 583f0b5e634SDaniel Mack int err; 584f0b5e634SDaniel Mack 585ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 586f0b5e634SDaniel Mack kctl->id.index++; 587f25ecf8fSTakashi Iwai err = snd_ctl_add(mixer->chip->card, kctl); 588f25ecf8fSTakashi Iwai if (err < 0) { 5896bc170e4SDaniel Mack usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", 5906bc170e4SDaniel Mack err); 591f0b5e634SDaniel Mack return err; 592f0b5e634SDaniel Mack } 5933360b84bSTakashi Iwai list->kctl = kctl; 5943360b84bSTakashi Iwai list->next_id_elem = mixer->id_elems[list->id]; 5953360b84bSTakashi Iwai mixer->id_elems[list->id] = list; 596f0b5e634SDaniel Mack return 0; 597f0b5e634SDaniel Mack } 598f0b5e634SDaniel Mack 599f0b5e634SDaniel Mack /* 600f0b5e634SDaniel Mack * get a terminal name string 601f0b5e634SDaniel Mack */ 602f0b5e634SDaniel Mack 603f0b5e634SDaniel Mack static struct iterm_name_combo { 604f0b5e634SDaniel Mack int type; 605f0b5e634SDaniel Mack char *name; 606f0b5e634SDaniel Mack } iterm_names[] = { 607f0b5e634SDaniel Mack { 0x0300, "Output" }, 608f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 609f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 610f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 611f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 612f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 613f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 614f0b5e634SDaniel Mack { 0x0307, "LFE" }, 615f0b5e634SDaniel Mack { 0x0600, "External In" }, 616f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 617f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 618f0b5e634SDaniel Mack { 0x0603, "Line" }, 619f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 620f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 621f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 622f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 623f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 624f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 625f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 626f0b5e634SDaniel Mack { 0x0703, "CD" }, 627f0b5e634SDaniel Mack { 0x0704, "DAT" }, 628f0b5e634SDaniel Mack { 0x0705, "DCC" }, 629f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 630f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 631f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 632f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 633f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 634f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 635f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 636f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 637f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 638f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 639f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 640f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 641f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 642f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 643f0b5e634SDaniel Mack { 0 }, 644f0b5e634SDaniel Mack }; 645f0b5e634SDaniel Mack 646eccfc1b8SRuslan Bilovol static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm, 647f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 648f0b5e634SDaniel Mack { 649f0b5e634SDaniel Mack struct iterm_name_combo *names; 65056a23ee5STakashi Iwai int len; 651f0b5e634SDaniel Mack 65256a23ee5STakashi Iwai if (iterm->name) { 653eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(chip, iterm->name, 6546bc170e4SDaniel Mack name, maxlen); 65556a23ee5STakashi Iwai if (len) 65656a23ee5STakashi Iwai return len; 65756a23ee5STakashi Iwai } 658f0b5e634SDaniel Mack 659f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 660f0b5e634SDaniel Mack if (iterm->type >> 16) { 661f0b5e634SDaniel Mack if (term_only) 662f0b5e634SDaniel Mack return 0; 663f0b5e634SDaniel Mack switch (iterm->type >> 16) { 6648b3a087fSJorge Sanjuan case UAC3_SELECTOR_UNIT: 6656bc170e4SDaniel Mack strcpy(name, "Selector"); 6666bc170e4SDaniel Mack return 8; 6678b3a087fSJorge Sanjuan case UAC3_PROCESSING_UNIT: 6686bc170e4SDaniel Mack strcpy(name, "Process Unit"); 6696bc170e4SDaniel Mack return 12; 6708b3a087fSJorge Sanjuan case UAC3_EXTENSION_UNIT: 6716bc170e4SDaniel Mack strcpy(name, "Ext Unit"); 6726bc170e4SDaniel Mack return 8; 6738b3a087fSJorge Sanjuan case UAC3_MIXER_UNIT: 6746bc170e4SDaniel Mack strcpy(name, "Mixer"); 6756bc170e4SDaniel Mack return 5; 676f0b5e634SDaniel Mack default: 677f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 678f0b5e634SDaniel Mack } 679f0b5e634SDaniel Mack } 680f0b5e634SDaniel Mack 681f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 682f0b5e634SDaniel Mack case 0x0100: 6836bc170e4SDaniel Mack strcpy(name, "PCM"); 6846bc170e4SDaniel Mack return 3; 685f0b5e634SDaniel Mack case 0x0200: 6866bc170e4SDaniel Mack strcpy(name, "Mic"); 6876bc170e4SDaniel Mack return 3; 688f0b5e634SDaniel Mack case 0x0400: 6896bc170e4SDaniel Mack strcpy(name, "Headset"); 6906bc170e4SDaniel Mack return 7; 691f0b5e634SDaniel Mack case 0x0500: 6926bc170e4SDaniel Mack strcpy(name, "Phone"); 6936bc170e4SDaniel Mack return 5; 694f0b5e634SDaniel Mack } 695f0b5e634SDaniel Mack 6966bc170e4SDaniel Mack for (names = iterm_names; names->type; names++) { 697f0b5e634SDaniel Mack if (names->type == iterm->type) { 698f0b5e634SDaniel Mack strcpy(name, names->name); 699f0b5e634SDaniel Mack return strlen(names->name); 700f0b5e634SDaniel Mack } 701f0b5e634SDaniel Mack } 702f0b5e634SDaniel Mack 7036bc170e4SDaniel Mack return 0; 7046bc170e4SDaniel Mack } 705f0b5e634SDaniel Mack 706f0b5e634SDaniel Mack /* 7076cfd839aSJorge Sanjuan * Get logical cluster information for UAC3 devices. 7086cfd839aSJorge Sanjuan */ 7096cfd839aSJorge Sanjuan static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id) 7106cfd839aSJorge Sanjuan { 7116cfd839aSJorge Sanjuan struct uac3_cluster_header_descriptor c_header; 7126cfd839aSJorge Sanjuan int err; 7136cfd839aSJorge Sanjuan 7146cfd839aSJorge Sanjuan err = snd_usb_ctl_msg(state->chip->dev, 7156cfd839aSJorge Sanjuan usb_rcvctrlpipe(state->chip->dev, 0), 7166cfd839aSJorge Sanjuan UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, 7176cfd839aSJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 7186cfd839aSJorge Sanjuan cluster_id, 7196cfd839aSJorge Sanjuan snd_usb_ctrl_intf(state->chip), 7206cfd839aSJorge Sanjuan &c_header, sizeof(c_header)); 7216cfd839aSJorge Sanjuan if (err < 0) 7226cfd839aSJorge Sanjuan goto error; 7236cfd839aSJorge Sanjuan if (err != sizeof(c_header)) { 7246cfd839aSJorge Sanjuan err = -EIO; 7256cfd839aSJorge Sanjuan goto error; 7266cfd839aSJorge Sanjuan } 7276cfd839aSJorge Sanjuan 7286cfd839aSJorge Sanjuan return c_header.bNrChannels; 7296cfd839aSJorge Sanjuan 7306cfd839aSJorge Sanjuan error: 7316cfd839aSJorge Sanjuan usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err); 7326cfd839aSJorge Sanjuan return err; 7336cfd839aSJorge Sanjuan } 7346cfd839aSJorge Sanjuan 7356cfd839aSJorge Sanjuan /* 7366cfd839aSJorge Sanjuan * Get number of channels for a Mixer Unit. 7376cfd839aSJorge Sanjuan */ 7386cfd839aSJorge Sanjuan static int uac_mixer_unit_get_channels(struct mixer_build *state, 7396cfd839aSJorge Sanjuan struct uac_mixer_unit_descriptor *desc) 7406cfd839aSJorge Sanjuan { 7416cfd839aSJorge Sanjuan int mu_channels; 7426cfd839aSJorge Sanjuan 7430bfe5e43STakashi Iwai if (desc->bLength < sizeof(*desc)) 7446cfd839aSJorge Sanjuan return -EINVAL; 7456cfd839aSJorge Sanjuan if (!desc->bNrInPins) 7466cfd839aSJorge Sanjuan return -EINVAL; 747daac0715SHui Peng if (desc->bLength < sizeof(*desc) + desc->bNrInPins) 748daac0715SHui Peng return -EINVAL; 7496cfd839aSJorge Sanjuan 7506cfd839aSJorge Sanjuan switch (state->mixer->protocol) { 7516cfd839aSJorge Sanjuan case UAC_VERSION_1: 7526cfd839aSJorge Sanjuan case UAC_VERSION_2: 7536cfd839aSJorge Sanjuan default: 7540bfe5e43STakashi Iwai if (desc->bLength < sizeof(*desc) + desc->bNrInPins + 1) 7550bfe5e43STakashi Iwai return 0; /* no bmControls -> skip */ 7566cfd839aSJorge Sanjuan mu_channels = uac_mixer_unit_bNrChannels(desc); 7576cfd839aSJorge Sanjuan break; 7586cfd839aSJorge Sanjuan case UAC_VERSION_3: 7596cfd839aSJorge Sanjuan mu_channels = get_cluster_channels_v3(state, 7606cfd839aSJorge Sanjuan uac3_mixer_unit_wClusterDescrID(desc)); 7616cfd839aSJorge Sanjuan break; 7626cfd839aSJorge Sanjuan } 7636cfd839aSJorge Sanjuan 7646cfd839aSJorge Sanjuan return mu_channels; 7656cfd839aSJorge Sanjuan } 7666cfd839aSJorge Sanjuan 7676cfd839aSJorge Sanjuan /* 768f0b5e634SDaniel Mack * parse the source unit recursively until it reaches to a terminal 769f0b5e634SDaniel Mack * or a branched unit. 770f0b5e634SDaniel Mack */ 77119bce474SHui Peng static int __check_input_term(struct mixer_build *state, int id, 7726bc170e4SDaniel Mack struct usb_audio_term *term) 773f0b5e634SDaniel Mack { 7749a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 77509414207SDaniel Mack int err; 77623caaf19SDaniel Mack void *p1; 77719bce474SHui Peng unsigned char *hdr; 778f0b5e634SDaniel Mack 779f0b5e634SDaniel Mack memset(term, 0, sizeof(*term)); 78019bce474SHui Peng for (;;) { 78119bce474SHui Peng /* a loop in the terminal chain? */ 78219bce474SHui Peng if (test_and_set_bit(id, state->termbitmap)) 78319bce474SHui Peng return -EINVAL; 78419bce474SHui Peng 78519bce474SHui Peng p1 = find_audio_control_unit(state, id); 78619bce474SHui Peng if (!p1) 78719bce474SHui Peng break; 78857f87706STakashi Iwai if (!snd_usb_validate_audio_desc(p1, protocol)) 78957f87706STakashi Iwai break; /* bad descriptor */ 79019bce474SHui Peng 79119bce474SHui Peng hdr = p1; 792f0b5e634SDaniel Mack term->id = id; 7939a2fe9b8SRuslan Bilovol 7949a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) { 79523caaf19SDaniel Mack switch (hdr[2]) { 796f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 7979a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_1) { 79823caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 7999a2fe9b8SRuslan Bilovol 80023caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 80123caaf19SDaniel Mack term->channels = d->bNrChannels; 80223caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 80323caaf19SDaniel Mack term->name = d->iTerminal; 80423caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 80523caaf19SDaniel Mack struct uac2_input_terminal_descriptor *d = p1; 8069430e547SJulian Scheel 8079430e547SJulian Scheel /* call recursively to verify that the 8089430e547SJulian Scheel * referenced clock entity is valid */ 80919bce474SHui Peng err = __check_input_term(state, d->bCSourceID, term); 8109430e547SJulian Scheel if (err < 0) 8119430e547SJulian Scheel return err; 8129430e547SJulian Scheel 8139430e547SJulian Scheel /* save input term properties after recursion, 8149430e547SJulian Scheel * to ensure they are not overriden by the 8159430e547SJulian Scheel * recursion calls */ 8169430e547SJulian Scheel term->id = id; 81723caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 81823caaf19SDaniel Mack term->channels = d->bNrChannels; 81923caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 82023caaf19SDaniel Mack term->name = d->iTerminal; 82123caaf19SDaniel Mack } 822f0b5e634SDaniel Mack return 0; 82323caaf19SDaniel Mack case UAC_FEATURE_UNIT: { 82423caaf19SDaniel Mack /* the header is the same for v1 and v2 */ 82523caaf19SDaniel Mack struct uac_feature_unit_descriptor *d = p1; 8269a2fe9b8SRuslan Bilovol 8275e688883SDaniel Mack id = d->bSourceID; 828f0b5e634SDaniel Mack break; /* continue to parse */ 829f0b5e634SDaniel Mack } 83023caaf19SDaniel Mack case UAC_MIXER_UNIT: { 83123caaf19SDaniel Mack struct uac_mixer_unit_descriptor *d = p1; 8329a2fe9b8SRuslan Bilovol 8338b3a087fSJorge Sanjuan term->type = UAC3_MIXER_UNIT << 16; /* virtual type */ 83423caaf19SDaniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 8359a2fe9b8SRuslan Bilovol term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol); 83623caaf19SDaniel Mack term->name = uac_mixer_unit_iMixer(d); 837f0b5e634SDaniel Mack return 0; 83823caaf19SDaniel Mack } 83909414207SDaniel Mack case UAC_SELECTOR_UNIT: 84009414207SDaniel Mack case UAC2_CLOCK_SELECTOR: { 84123caaf19SDaniel Mack struct uac_selector_unit_descriptor *d = p1; 84223caaf19SDaniel Mack /* call recursively to retrieve the channel info */ 84319bce474SHui Peng err = __check_input_term(state, d->baSourceID[0], term); 8444d7b86c9SDaniel Mack if (err < 0) 8454d7b86c9SDaniel Mack return err; 8468b3a087fSJorge Sanjuan term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ 84723caaf19SDaniel Mack term->id = id; 84823caaf19SDaniel Mack term->name = uac_selector_unit_iSelector(d); 84923caaf19SDaniel Mack return 0; 85023caaf19SDaniel Mack } 85169da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 8528b3a087fSJorge Sanjuan /* UAC2_EFFECT_UNIT */ 8538b3a087fSJorge Sanjuan if (protocol == UAC_VERSION_1) 8548b3a087fSJorge Sanjuan term->type = UAC3_PROCESSING_UNIT << 16; /* virtual type */ 8558b3a087fSJorge Sanjuan else /* UAC_VERSION_2 */ 8568b3a087fSJorge Sanjuan term->type = UAC3_EFFECT_UNIT << 16; /* virtual type */ 85791c6e15eSGustavo A. R. Silva /* fall through */ 8585dae5fd2SEldad Zack case UAC1_EXTENSION_UNIT: 8595dae5fd2SEldad Zack /* UAC2_PROCESSING_UNIT_V2 */ 8608b3a087fSJorge Sanjuan if (protocol == UAC_VERSION_1 && !term->type) 8618b3a087fSJorge Sanjuan term->type = UAC3_EXTENSION_UNIT << 16; /* virtual type */ 8628b3a087fSJorge Sanjuan else if (protocol == UAC_VERSION_2 && !term->type) 8638b3a087fSJorge Sanjuan term->type = UAC3_PROCESSING_UNIT << 16; /* virtual type */ 86491c6e15eSGustavo A. R. Silva /* fall through */ 86561ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: { 86623caaf19SDaniel Mack struct uac_processing_unit_descriptor *d = p1; 8675dae5fd2SEldad Zack 8689a2fe9b8SRuslan Bilovol if (protocol == UAC_VERSION_2 && 8695dae5fd2SEldad Zack hdr[2] == UAC2_EFFECT_UNIT) { 8705dae5fd2SEldad Zack /* UAC2/UAC1 unit IDs overlap here in an 8715dae5fd2SEldad Zack * uncompatible way. Ignore this unit for now. 8725dae5fd2SEldad Zack */ 8735dae5fd2SEldad Zack return 0; 8745dae5fd2SEldad Zack } 8755dae5fd2SEldad Zack 87623caaf19SDaniel Mack if (d->bNrInPins) { 87723caaf19SDaniel Mack id = d->baSourceID[0]; 87823caaf19SDaniel Mack break; /* continue to parse */ 87923caaf19SDaniel Mack } 8808b3a087fSJorge Sanjuan if (!term->type) 8818b3a087fSJorge Sanjuan term->type = UAC3_EXTENSION_UNIT << 16; /* virtual type */ 8828b3a087fSJorge Sanjuan 88323caaf19SDaniel Mack term->channels = uac_processing_unit_bNrChannels(d); 8849a2fe9b8SRuslan Bilovol term->chconfig = uac_processing_unit_wChannelConfig(d, protocol); 8859a2fe9b8SRuslan Bilovol term->name = uac_processing_unit_iProcessing(d, protocol); 88623caaf19SDaniel Mack return 0; 88723caaf19SDaniel Mack } 88809414207SDaniel Mack case UAC2_CLOCK_SOURCE: { 88909414207SDaniel Mack struct uac_clock_source_descriptor *d = p1; 8909a2fe9b8SRuslan Bilovol 8918b3a087fSJorge Sanjuan term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ 89209414207SDaniel Mack term->id = id; 89309414207SDaniel Mack term->name = d->iClockSource; 89409414207SDaniel Mack return 0; 89509414207SDaniel Mack } 896f0b5e634SDaniel Mack default: 897f0b5e634SDaniel Mack return -ENODEV; 898f0b5e634SDaniel Mack } 8999a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 9009a2fe9b8SRuslan Bilovol switch (hdr[2]) { 9019a2fe9b8SRuslan Bilovol case UAC_INPUT_TERMINAL: { 9029a2fe9b8SRuslan Bilovol struct uac3_input_terminal_descriptor *d = p1; 9039a2fe9b8SRuslan Bilovol 9049a2fe9b8SRuslan Bilovol /* call recursively to verify that the 9059a2fe9b8SRuslan Bilovol * referenced clock entity is valid */ 90619bce474SHui Peng err = __check_input_term(state, d->bCSourceID, term); 9079a2fe9b8SRuslan Bilovol if (err < 0) 9089a2fe9b8SRuslan Bilovol return err; 9099a2fe9b8SRuslan Bilovol 9109a2fe9b8SRuslan Bilovol /* save input term properties after recursion, 9119a2fe9b8SRuslan Bilovol * to ensure they are not overriden by the 9129a2fe9b8SRuslan Bilovol * recursion calls */ 9139a2fe9b8SRuslan Bilovol term->id = id; 9149a2fe9b8SRuslan Bilovol term->type = le16_to_cpu(d->wTerminalType); 9159a2fe9b8SRuslan Bilovol 91671066945SJorge Sanjuan err = get_cluster_channels_v3(state, le16_to_cpu(d->wClusterDescrID)); 91771066945SJorge Sanjuan if (err < 0) 91871066945SJorge Sanjuan return err; 91971066945SJorge Sanjuan term->channels = err; 92071066945SJorge Sanjuan 92171066945SJorge Sanjuan /* REVISIT: UAC3 IT doesn't have channels cfg */ 9229a2fe9b8SRuslan Bilovol term->chconfig = 0; 9239a2fe9b8SRuslan Bilovol 9249a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wTerminalDescrStr); 9259a2fe9b8SRuslan Bilovol return 0; 9269a2fe9b8SRuslan Bilovol } 9279a2fe9b8SRuslan Bilovol case UAC3_FEATURE_UNIT: { 9289a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *d = p1; 9299a2fe9b8SRuslan Bilovol 9309a2fe9b8SRuslan Bilovol id = d->bSourceID; 9319a2fe9b8SRuslan Bilovol break; /* continue to parse */ 9329a2fe9b8SRuslan Bilovol } 9339a2fe9b8SRuslan Bilovol case UAC3_CLOCK_SOURCE: { 9349a2fe9b8SRuslan Bilovol struct uac3_clock_source_descriptor *d = p1; 9359a2fe9b8SRuslan Bilovol 9368b3a087fSJorge Sanjuan term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ 9379a2fe9b8SRuslan Bilovol term->id = id; 9389a2fe9b8SRuslan Bilovol term->name = le16_to_cpu(d->wClockSourceStr); 9399a2fe9b8SRuslan Bilovol return 0; 9409a2fe9b8SRuslan Bilovol } 9416cfd839aSJorge Sanjuan case UAC3_MIXER_UNIT: { 9426cfd839aSJorge Sanjuan struct uac_mixer_unit_descriptor *d = p1; 9436cfd839aSJorge Sanjuan 9446cfd839aSJorge Sanjuan err = uac_mixer_unit_get_channels(state, d); 9450bfe5e43STakashi Iwai if (err <= 0) 9466cfd839aSJorge Sanjuan return err; 9476cfd839aSJorge Sanjuan 9486cfd839aSJorge Sanjuan term->channels = err; 9498b3a087fSJorge Sanjuan term->type = UAC3_MIXER_UNIT << 16; /* virtual type */ 9506cfd839aSJorge Sanjuan 9516cfd839aSJorge Sanjuan return 0; 9526cfd839aSJorge Sanjuan } 953c77e1ef1SJorge Sanjuan case UAC3_SELECTOR_UNIT: 954c77e1ef1SJorge Sanjuan case UAC3_CLOCK_SELECTOR: { 955c77e1ef1SJorge Sanjuan struct uac_selector_unit_descriptor *d = p1; 956c77e1ef1SJorge Sanjuan /* call recursively to retrieve the channel info */ 95719bce474SHui Peng err = __check_input_term(state, d->baSourceID[0], term); 958c77e1ef1SJorge Sanjuan if (err < 0) 959c77e1ef1SJorge Sanjuan return err; 9608b3a087fSJorge Sanjuan term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ 961c77e1ef1SJorge Sanjuan term->id = id; 962c77e1ef1SJorge Sanjuan term->name = 0; /* TODO: UAC3 Class-specific strings */ 963c77e1ef1SJorge Sanjuan 964c77e1ef1SJorge Sanjuan return 0; 965c77e1ef1SJorge Sanjuan } 9660f292f02SJorge Sanjuan case UAC3_PROCESSING_UNIT: { 9670f292f02SJorge Sanjuan struct uac_processing_unit_descriptor *d = p1; 9680f292f02SJorge Sanjuan 9690f292f02SJorge Sanjuan if (!d->bNrInPins) 9700f292f02SJorge Sanjuan return -EINVAL; 9710f292f02SJorge Sanjuan 9720f292f02SJorge Sanjuan /* call recursively to retrieve the channel info */ 97319bce474SHui Peng err = __check_input_term(state, d->baSourceID[0], term); 9740f292f02SJorge Sanjuan if (err < 0) 9750f292f02SJorge Sanjuan return err; 9760f292f02SJorge Sanjuan 9778b3a087fSJorge Sanjuan term->type = UAC3_PROCESSING_UNIT << 16; /* virtual type */ 9780f292f02SJorge Sanjuan term->id = id; 9790f292f02SJorge Sanjuan term->name = 0; /* TODO: UAC3 Class-specific strings */ 9800f292f02SJorge Sanjuan 9810f292f02SJorge Sanjuan return 0; 9820f292f02SJorge Sanjuan } 9839a2fe9b8SRuslan Bilovol default: 9849a2fe9b8SRuslan Bilovol return -ENODEV; 9859a2fe9b8SRuslan Bilovol } 9869a2fe9b8SRuslan Bilovol } 987f0b5e634SDaniel Mack } 988f0b5e634SDaniel Mack return -ENODEV; 989f0b5e634SDaniel Mack } 990f0b5e634SDaniel Mack 99119bce474SHui Peng 99219bce474SHui Peng static int check_input_term(struct mixer_build *state, int id, 99319bce474SHui Peng struct usb_audio_term *term) 99419bce474SHui Peng { 99519bce474SHui Peng memset(term, 0, sizeof(*term)); 99619bce474SHui Peng memset(state->termbitmap, 0, sizeof(state->termbitmap)); 99719bce474SHui Peng return __check_input_term(state, id, term); 99819bce474SHui Peng } 99919bce474SHui Peng 1000f0b5e634SDaniel Mack /* 1001f0b5e634SDaniel Mack * Feature Unit 1002f0b5e634SDaniel Mack */ 1003f0b5e634SDaniel Mack 1004f0b5e634SDaniel Mack /* feature unit control information */ 1005f0b5e634SDaniel Mack struct usb_feature_control_info { 100621e9b3e9SAndrew Chant int control; 1007f0b5e634SDaniel Mack const char *name; 1008bc18e31cSJulian Scheel int type; /* data type for uac1 */ 1009bc18e31cSJulian Scheel int type_uac2; /* data type for uac2 if different from uac1, else -1 */ 1010f0b5e634SDaniel Mack }; 1011f0b5e634SDaniel Mack 1012f0b5e634SDaniel Mack static struct usb_feature_control_info audio_feature_info[] = { 101321e9b3e9SAndrew Chant { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 }, 101421e9b3e9SAndrew Chant { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 }, 101521e9b3e9SAndrew Chant { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 }, 101621e9b3e9SAndrew Chant { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 }, 101721e9b3e9SAndrew Chant { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 }, 101821e9b3e9SAndrew Chant { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemented yet */ 101921e9b3e9SAndrew Chant { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, 102021e9b3e9SAndrew Chant { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, 102121e9b3e9SAndrew Chant { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 }, 102221e9b3e9SAndrew Chant { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 }, 10232e0281d1SDaniel Mack /* UAC2 specific */ 102421e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 }, 102521e9b3e9SAndrew Chant { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 }, 102621e9b3e9SAndrew Chant { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, 1027f0b5e634SDaniel Mack }; 1028f0b5e634SDaniel Mack 102952c3e317STakashi Iwai static void usb_mixer_elem_info_free(struct usb_mixer_elem_info *cval) 103052c3e317STakashi Iwai { 103152c3e317STakashi Iwai kfree(cval); 103252c3e317STakashi Iwai } 103352c3e317STakashi Iwai 1034f0b5e634SDaniel Mack /* private_free callback */ 1035eef90451SChris J Arges void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) 1036f0b5e634SDaniel Mack { 103752c3e317STakashi Iwai usb_mixer_elem_info_free(kctl->private_data); 1038f0b5e634SDaniel Mack kctl->private_data = NULL; 1039f0b5e634SDaniel Mack } 1040f0b5e634SDaniel Mack 1041f0b5e634SDaniel Mack /* 1042f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 1043f0b5e634SDaniel Mack */ 1044f0b5e634SDaniel Mack 1045dcaaf9f2STakashi Iwai /* volume control quirks */ 1046dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 1047dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 1048dcaaf9f2STakashi Iwai { 10493360b84bSTakashi Iwai struct snd_usb_audio *chip = cval->head.mixer->chip; 10500ba41d91STakashi Iwai switch (chip->usb_id) { 1051d50ed624SEldad Zack case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ 1052e9a25e04SMatt Gruskin case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ 1053d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Duration") == 0) { 1054d50ed624SEldad Zack cval->min = 0x0000; 1055d50ed624SEldad Zack cval->max = 0xffff; 1056d50ed624SEldad Zack cval->res = 0x00e6; 1057d50ed624SEldad Zack break; 1058d50ed624SEldad Zack } 1059d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Volume") == 0 || 1060d50ed624SEldad Zack strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 1061d50ed624SEldad Zack cval->min = 0x00; 1062d50ed624SEldad Zack cval->max = 0xff; 1063d50ed624SEldad Zack break; 1064d50ed624SEldad Zack } 1065d50ed624SEldad Zack if (strstr(kctl->id.name, "Effect Return") != NULL) { 1066d50ed624SEldad Zack cval->min = 0xb706; 1067d50ed624SEldad Zack cval->max = 0xff7b; 1068d50ed624SEldad Zack cval->res = 0x0073; 1069d50ed624SEldad Zack break; 1070d50ed624SEldad Zack } 1071d50ed624SEldad Zack if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 1072d50ed624SEldad Zack (strstr(kctl->id.name, "Effect Send") != NULL)) { 1073d50ed624SEldad Zack cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ 1074d50ed624SEldad Zack cval->max = 0xfcfe; 1075d50ed624SEldad Zack cval->res = 0x0073; 1076d50ed624SEldad Zack } 1077d50ed624SEldad Zack break; 1078d50ed624SEldad Zack 1079d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 1080d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 1081d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 10820ba41d91STakashi Iwai usb_audio_info(chip, 10830ba41d91STakashi Iwai "set quirk for FTU Effect Duration\n"); 1084d34bf148SFelix Homann cval->min = 0x0000; 1085d34bf148SFelix Homann cval->max = 0x7f00; 1086d34bf148SFelix Homann cval->res = 0x0100; 1087d34bf148SFelix Homann break; 1088d34bf148SFelix Homann } 1089d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 1090d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 10910ba41d91STakashi Iwai usb_audio_info(chip, 10920ba41d91STakashi Iwai "set quirks for FTU Effect Feedback/Volume\n"); 1093d34bf148SFelix Homann cval->min = 0x00; 1094d34bf148SFelix Homann cval->max = 0x7f; 1095d34bf148SFelix Homann break; 1096d34bf148SFelix Homann } 1097d34bf148SFelix Homann break; 1098d34bf148SFelix Homann 109921493316SFederico Cuello case USB_ID(0x0d8c, 0x0103): 110021493316SFederico Cuello if (!strcmp(kctl->id.name, "PCM Playback Volume")) { 110121493316SFederico Cuello usb_audio_info(chip, 110221493316SFederico Cuello "set volume quirk for CM102-A+/102S+\n"); 110321493316SFederico Cuello cval->min = -256; 110421493316SFederico Cuello } 110521493316SFederico Cuello break; 110621493316SFederico Cuello 1107dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 1108dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 1109dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 1110dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 1111dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 1112dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 1113dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 1114dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 1115dcaaf9f2STakashi Iwai */ 1116dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 1117dcaaf9f2STakashi Iwai cval->min == -15616) { 11180ba41d91STakashi Iwai usb_audio_info(chip, 1119dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 1120dcaaf9f2STakashi Iwai cval->max = -256; 1121dcaaf9f2STakashi Iwai } 1122dcaaf9f2STakashi Iwai break; 1123dcaaf9f2STakashi Iwai 1124dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 1125dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 11260ba41d91STakashi Iwai usb_audio_info(chip, 1127dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 1128dcaaf9f2STakashi Iwai cval->min = 6080; 1129dcaaf9f2STakashi Iwai cval->max = 8768; 1130dcaaf9f2STakashi Iwai cval->res = 192; 1131dcaaf9f2STakashi Iwai } 1132dcaaf9f2STakashi Iwai break; 1133dcaaf9f2STakashi Iwai 1134e805ca8bSTakashi Iwai case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ 1135dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 1136dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 113764559311SJason Lee Cragg case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ 113836691e1bSTakashi Iwai case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ 113955c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 114011e7064fSTakashi Iwai case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ 1141140d37deSMaksim A. Boyko case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ 11421ef9f058SWolfram Sang case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ 1143dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 114482ffb6fcSCon Kolivas case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ 1145dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 1146dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 114782ffb6fcSCon Kolivas * Probably there is some logitech magic behind this number --fishor 1148dcaaf9f2STakashi Iwai */ 1149dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 11500ba41d91STakashi Iwai usb_audio_info(chip, 1151dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 1152dcaaf9f2STakashi Iwai cval->res = 384; 1153dcaaf9f2STakashi Iwai } 1154dcaaf9f2STakashi Iwai break; 1155dcaaf9f2STakashi Iwai } 1156dcaaf9f2STakashi Iwai } 1157dcaaf9f2STakashi Iwai 1158f0b5e634SDaniel Mack /* 1159f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 1160f0b5e634SDaniel Mack */ 1161dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 1162dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 1163f0b5e634SDaniel Mack { 1164f0b5e634SDaniel Mack /* for failsafe */ 1165f0b5e634SDaniel Mack cval->min = default_min; 1166f0b5e634SDaniel Mack cval->max = cval->min + 1; 1167f0b5e634SDaniel Mack cval->res = 1; 1168f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 1169f0b5e634SDaniel Mack 1170f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1171f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1172f0b5e634SDaniel Mack cval->initialized = 1; 1173f0b5e634SDaniel Mack } else { 1174f0b5e634SDaniel Mack int minchn = 0; 1175f0b5e634SDaniel Mack if (cval->cmask) { 1176f0b5e634SDaniel Mack int i; 1177f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 1178f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 1179f0b5e634SDaniel Mack minchn = i + 1; 1180f0b5e634SDaniel Mack break; 1181f0b5e634SDaniel Mack } 1182f0b5e634SDaniel Mack } 1183f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 1184f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 11853360b84bSTakashi Iwai usb_audio_err(cval->head.mixer->chip, 11860ba41d91STakashi Iwai "%d:%d: cannot get min/max values for control %d (id %d)\n", 11873360b84bSTakashi Iwai cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), 11883360b84bSTakashi Iwai cval->control, cval->head.id); 1189f0b5e634SDaniel Mack return -EINVAL; 1190f0b5e634SDaniel Mack } 11916bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 11926bc170e4SDaniel Mack (cval->control << 8) | minchn, 11936bc170e4SDaniel Mack &cval->res) < 0) { 1194f0b5e634SDaniel Mack cval->res = 1; 1195f0b5e634SDaniel Mack } else { 1196f0b5e634SDaniel Mack int last_valid_res = cval->res; 1197f0b5e634SDaniel Mack 1198f0b5e634SDaniel Mack while (cval->res > 1) { 1199f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 12006bc170e4SDaniel Mack (cval->control << 8) | minchn, 12016bc170e4SDaniel Mack cval->res / 2) < 0) 1202f0b5e634SDaniel Mack break; 1203f0b5e634SDaniel Mack cval->res /= 2; 1204f0b5e634SDaniel Mack } 12056bc170e4SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, 12066bc170e4SDaniel Mack (cval->control << 8) | minchn, &cval->res) < 0) 1207f0b5e634SDaniel Mack cval->res = last_valid_res; 1208f0b5e634SDaniel Mack } 1209f0b5e634SDaniel Mack if (cval->res == 0) 1210f0b5e634SDaniel Mack cval->res = 1; 1211f0b5e634SDaniel Mack 1212f0b5e634SDaniel Mack /* Additional checks for the proper resolution 1213f0b5e634SDaniel Mack * 1214f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 1215f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 1216f0b5e634SDaniel Mack * to the lower aligned value. 1217f0b5e634SDaniel Mack */ 1218f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 1219f0b5e634SDaniel Mack int last_valid_res = cval->res; 1220f0b5e634SDaniel Mack int saved, test, check; 1221f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &saved); 1222f0b5e634SDaniel Mack for (;;) { 1223f0b5e634SDaniel Mack test = saved; 1224f0b5e634SDaniel Mack if (test < cval->max) 1225f0b5e634SDaniel Mack test += cval->res; 1226f0b5e634SDaniel Mack else 1227f0b5e634SDaniel Mack test -= cval->res; 1228f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 1229eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, test) || 1230f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 1231f0b5e634SDaniel Mack cval->res = last_valid_res; 1232f0b5e634SDaniel Mack break; 1233f0b5e634SDaniel Mack } 1234f0b5e634SDaniel Mack if (test == check) 1235f0b5e634SDaniel Mack break; 1236f0b5e634SDaniel Mack cval->res *= 2; 1237f0b5e634SDaniel Mack } 1238eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, minchn, 0, saved); 1239f0b5e634SDaniel Mack } 1240f0b5e634SDaniel Mack 1241f0b5e634SDaniel Mack cval->initialized = 1; 1242f0b5e634SDaniel Mack } 1243f0b5e634SDaniel Mack 1244dcaaf9f2STakashi Iwai if (kctl) 1245dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 1246dcaaf9f2STakashi Iwai 1247f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 1248f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 1249f0b5e634SDaniel Mack */ 1250f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 1251f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 1252f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1253f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 1254f0b5e634SDaniel Mack if (cval->dBmin < 0) 1255f0b5e634SDaniel Mack cval->dBmax = 0; 1256f0b5e634SDaniel Mack else if (cval->dBmin > 0) 1257f0b5e634SDaniel Mack cval->dBmin = 0; 1258f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1259f0b5e634SDaniel Mack /* totally crap, return an error */ 1260f0b5e634SDaniel Mack return -EINVAL; 1261f0b5e634SDaniel Mack } 1262f0b5e634SDaniel Mack } 1263f0b5e634SDaniel Mack 1264f0b5e634SDaniel Mack return 0; 1265f0b5e634SDaniel Mack } 1266f0b5e634SDaniel Mack 1267dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 1268f0b5e634SDaniel Mack 1269f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 12706bc170e4SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, 12716bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 1272f0b5e634SDaniel Mack { 1273f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1274f0b5e634SDaniel Mack 1275f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1276f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 1277f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1278f0b5e634SDaniel Mack else 1279f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1280f0b5e634SDaniel Mack uinfo->count = cval->channels; 1281f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1282f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1283f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1284f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 1285f0b5e634SDaniel Mack } else { 12869fcd0ab1STakashi Iwai if (!cval->initialized) { 1287dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 12889fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 12899fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 12909fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 12919fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 12923360b84bSTakashi Iwai snd_ctl_notify(cval->head.mixer->chip->card, 12939fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 12949fcd0ab1STakashi Iwai &kcontrol->id); 12959fcd0ab1STakashi Iwai } 12969fcd0ab1STakashi Iwai } 1297f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1298f0b5e634SDaniel Mack uinfo->value.integer.max = 1299f0b5e634SDaniel Mack (cval->max - cval->min + cval->res - 1) / cval->res; 1300f0b5e634SDaniel Mack } 1301f0b5e634SDaniel Mack return 0; 1302f0b5e634SDaniel Mack } 1303f0b5e634SDaniel Mack 1304f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 13056bc170e4SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, 13066bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1307f0b5e634SDaniel Mack { 1308f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1309f0b5e634SDaniel Mack int c, cnt, val, err; 1310f0b5e634SDaniel Mack 1311f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1312f0b5e634SDaniel Mack if (cval->cmask) { 1313f0b5e634SDaniel Mack cnt = 0; 1314f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1315f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1316f0b5e634SDaniel Mack continue; 1317eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); 1318f0b5e634SDaniel Mack if (err < 0) 13195aeee342STakashi Iwai return filter_error(cval, err); 1320f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1321f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 1322f0b5e634SDaniel Mack cnt++; 1323f0b5e634SDaniel Mack } 1324f0b5e634SDaniel Mack return 0; 1325f0b5e634SDaniel Mack } else { 1326f0b5e634SDaniel Mack /* master channel */ 1327eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 1328f0b5e634SDaniel Mack if (err < 0) 13295aeee342STakashi Iwai return filter_error(cval, err); 1330f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1331f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1332f0b5e634SDaniel Mack } 1333f0b5e634SDaniel Mack return 0; 1334f0b5e634SDaniel Mack } 1335f0b5e634SDaniel Mack 1336f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 13376bc170e4SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, 13386bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 1339f0b5e634SDaniel Mack { 1340f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1341f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1342f0b5e634SDaniel Mack int changed = 0; 1343f0b5e634SDaniel Mack 1344f0b5e634SDaniel Mack if (cval->cmask) { 1345f0b5e634SDaniel Mack cnt = 0; 1346f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1347f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1348f0b5e634SDaniel Mack continue; 1349eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); 1350f0b5e634SDaniel Mack if (err < 0) 13515aeee342STakashi Iwai return filter_error(cval, err); 1352f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1353f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1354f0b5e634SDaniel Mack if (oval != val) { 1355eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); 1356f0b5e634SDaniel Mack changed = 1; 1357f0b5e634SDaniel Mack } 1358f0b5e634SDaniel Mack cnt++; 1359f0b5e634SDaniel Mack } 1360f0b5e634SDaniel Mack } else { 1361f0b5e634SDaniel Mack /* master channel */ 1362eef90451SChris J Arges err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); 1363f0b5e634SDaniel Mack if (err < 0) 13645aeee342STakashi Iwai return filter_error(cval, err); 1365f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1366f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1367f0b5e634SDaniel Mack if (val != oval) { 1368eef90451SChris J Arges snd_usb_set_cur_mix_value(cval, 0, 0, val); 1369f0b5e634SDaniel Mack changed = 1; 1370f0b5e634SDaniel Mack } 1371f0b5e634SDaniel Mack } 1372f0b5e634SDaniel Mack return changed; 1373f0b5e634SDaniel Mack } 1374f0b5e634SDaniel Mack 1375568fa7e0SAndrew Chant /* get the boolean value from the master channel of a UAC control */ 1376568fa7e0SAndrew Chant static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol, 13775a222e84SAndrew Chant struct snd_ctl_elem_value *ucontrol) 13785a222e84SAndrew Chant { 13795a222e84SAndrew Chant struct usb_mixer_elem_info *cval = kcontrol->private_data; 13805a222e84SAndrew Chant int val, err; 13815a222e84SAndrew Chant 13825a222e84SAndrew Chant err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); 13835a222e84SAndrew Chant if (err < 0) 13845a222e84SAndrew Chant return filter_error(cval, err); 13855a222e84SAndrew Chant val = (val != 0); 13865a222e84SAndrew Chant ucontrol->value.integer.value[0] = val; 13875a222e84SAndrew Chant return 0; 13885a222e84SAndrew Chant } 13895a222e84SAndrew Chant 13901d38f5d8SJorge Sanjuan /* get the connectors status and report it as boolean type */ 13911d38f5d8SJorge Sanjuan static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol, 13921d38f5d8SJorge Sanjuan struct snd_ctl_elem_value *ucontrol) 13931d38f5d8SJorge Sanjuan { 13941d38f5d8SJorge Sanjuan struct usb_mixer_elem_info *cval = kcontrol->private_data; 13951d38f5d8SJorge Sanjuan struct snd_usb_audio *chip = cval->head.mixer->chip; 13961d38f5d8SJorge Sanjuan int idx = 0, validx, ret, val; 13971d38f5d8SJorge Sanjuan 13981d38f5d8SJorge Sanjuan validx = cval->control << 8 | 0; 13991d38f5d8SJorge Sanjuan 14001d38f5d8SJorge Sanjuan ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; 14011d38f5d8SJorge Sanjuan if (ret) 14021d38f5d8SJorge Sanjuan goto error; 14031d38f5d8SJorge Sanjuan 14041d38f5d8SJorge Sanjuan idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); 14051d38f5d8SJorge Sanjuan if (cval->head.mixer->protocol == UAC_VERSION_2) { 14061d38f5d8SJorge Sanjuan struct uac2_connectors_ctl_blk uac2_conn; 14071d38f5d8SJorge Sanjuan 14081d38f5d8SJorge Sanjuan ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, 14091d38f5d8SJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 14101d38f5d8SJorge Sanjuan validx, idx, &uac2_conn, sizeof(uac2_conn)); 14111d38f5d8SJorge Sanjuan val = !!uac2_conn.bNrChannels; 14121d38f5d8SJorge Sanjuan } else { /* UAC_VERSION_3 */ 14131d38f5d8SJorge Sanjuan struct uac3_insertion_ctl_blk uac3_conn; 14141d38f5d8SJorge Sanjuan 14151d38f5d8SJorge Sanjuan ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, 14161d38f5d8SJorge Sanjuan USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 14171d38f5d8SJorge Sanjuan validx, idx, &uac3_conn, sizeof(uac3_conn)); 14181d38f5d8SJorge Sanjuan val = !!uac3_conn.bmConInserted; 14191d38f5d8SJorge Sanjuan } 14201d38f5d8SJorge Sanjuan 14211d38f5d8SJorge Sanjuan snd_usb_unlock_shutdown(chip); 14221d38f5d8SJorge Sanjuan 14231d38f5d8SJorge Sanjuan if (ret < 0) { 14241d38f5d8SJorge Sanjuan error: 14251d38f5d8SJorge Sanjuan usb_audio_err(chip, 14261d38f5d8SJorge Sanjuan "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 14271d38f5d8SJorge Sanjuan UAC_GET_CUR, validx, idx, cval->val_type); 14281d38f5d8SJorge Sanjuan return ret; 14291d38f5d8SJorge Sanjuan } 14301d38f5d8SJorge Sanjuan 14311d38f5d8SJorge Sanjuan ucontrol->value.integer.value[0] = val; 14321d38f5d8SJorge Sanjuan return 0; 14331d38f5d8SJorge Sanjuan } 14341d38f5d8SJorge Sanjuan 1435f0b5e634SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl = { 1436f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1437f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1438f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1439f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1440f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1441f0b5e634SDaniel Mack }; 1442f0b5e634SDaniel Mack 144323caaf19SDaniel Mack /* the read-only variant */ 14448fdaebbbSBhumika Goyal static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 144523caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 144623caaf19SDaniel Mack .name = "", /* will be filled later manually */ 144723caaf19SDaniel Mack .info = mixer_ctl_feature_info, 144823caaf19SDaniel Mack .get = mixer_ctl_feature_get, 144923caaf19SDaniel Mack .put = NULL, 145023caaf19SDaniel Mack }; 145123caaf19SDaniel Mack 1452568fa7e0SAndrew Chant /* 1453568fa7e0SAndrew Chant * A control which shows the boolean value from reading a UAC control on 1454568fa7e0SAndrew Chant * the master channel. 1455568fa7e0SAndrew Chant */ 1456568fa7e0SAndrew Chant static struct snd_kcontrol_new usb_bool_master_control_ctl_ro = { 14575a222e84SAndrew Chant .iface = SNDRV_CTL_ELEM_IFACE_CARD, 14585a222e84SAndrew Chant .name = "", /* will be filled later manually */ 14595a222e84SAndrew Chant .access = SNDRV_CTL_ELEM_ACCESS_READ, 14605a222e84SAndrew Chant .info = snd_ctl_boolean_mono_info, 1461568fa7e0SAndrew Chant .get = mixer_ctl_master_bool_get, 14625a222e84SAndrew Chant .put = NULL, 14635a222e84SAndrew Chant }; 14645a222e84SAndrew Chant 14651d38f5d8SJorge Sanjuan static const struct snd_kcontrol_new usb_connector_ctl_ro = { 14661d38f5d8SJorge Sanjuan .iface = SNDRV_CTL_ELEM_IFACE_CARD, 14671d38f5d8SJorge Sanjuan .name = "", /* will be filled later manually */ 14681d38f5d8SJorge Sanjuan .access = SNDRV_CTL_ELEM_ACCESS_READ, 14691d38f5d8SJorge Sanjuan .info = snd_ctl_boolean_mono_info, 14701d38f5d8SJorge Sanjuan .get = mixer_ctl_connector_get, 14711d38f5d8SJorge Sanjuan .put = NULL, 14721d38f5d8SJorge Sanjuan }; 14731d38f5d8SJorge Sanjuan 14746bc170e4SDaniel Mack /* 14756bc170e4SDaniel Mack * This symbol is exported in order to allow the mixer quirks to 14766bc170e4SDaniel Mack * hook up to the standard feature unit control mechanism 14776bc170e4SDaniel Mack */ 14789e38658fSDaniel Mack struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1479f0b5e634SDaniel Mack 1480f0b5e634SDaniel Mack /* 1481f0b5e634SDaniel Mack * build a feature control 1482f0b5e634SDaniel Mack */ 1483f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1484f0b5e634SDaniel Mack { 1485f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1486f0b5e634SDaniel Mack } 1487f0b5e634SDaniel Mack 14886bc170e4SDaniel Mack /* 14896bc170e4SDaniel Mack * A lot of headsets/headphones have a "Speaker" mixer. Make sure we 14906bc170e4SDaniel Mack * rename it to "Headphone". We determine if something is a headphone 14916bc170e4SDaniel Mack * similar to how udev determines form factor. 14926bc170e4SDaniel Mack */ 14939b4ef977SDavid Henningsson static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, 14949b4ef977SDavid Henningsson struct snd_card *card) 14959b4ef977SDavid Henningsson { 14969b4ef977SDavid Henningsson const char *names_to_check[] = { 14979b4ef977SDavid Henningsson "Headset", "headset", "Headphone", "headphone", NULL}; 14989b4ef977SDavid Henningsson const char **s; 1499e0f17c75SPeter Senna Tschudin bool found = false; 15009b4ef977SDavid Henningsson 15019b4ef977SDavid Henningsson if (strcmp("Speaker", kctl->id.name)) 15029b4ef977SDavid Henningsson return; 15039b4ef977SDavid Henningsson 15049b4ef977SDavid Henningsson for (s = names_to_check; *s; s++) 15059b4ef977SDavid Henningsson if (strstr(card->shortname, *s)) { 1506e0f17c75SPeter Senna Tschudin found = true; 15079b4ef977SDavid Henningsson break; 15089b4ef977SDavid Henningsson } 15099b4ef977SDavid Henningsson 15109b4ef977SDavid Henningsson if (!found) 15119b4ef977SDavid Henningsson return; 15129b4ef977SDavid Henningsson 15139b4ef977SDavid Henningsson strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); 15149b4ef977SDavid Henningsson } 15159b4ef977SDavid Henningsson 151621e9b3e9SAndrew Chant static struct usb_feature_control_info *get_feature_control_info(int control) 151721e9b3e9SAndrew Chant { 151821e9b3e9SAndrew Chant int i; 151921e9b3e9SAndrew Chant 152021e9b3e9SAndrew Chant for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) { 152121e9b3e9SAndrew Chant if (audio_feature_info[i].control == control) 152221e9b3e9SAndrew Chant return &audio_feature_info[i]; 152321e9b3e9SAndrew Chant } 152421e9b3e9SAndrew Chant return NULL; 152521e9b3e9SAndrew Chant } 152621e9b3e9SAndrew Chant 152717156f23SRuslan Bilovol static void __build_feature_ctl(struct usb_mixer_interface *mixer, 152817156f23SRuslan Bilovol const struct usbmix_name_map *imap, 1529f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 153017156f23SRuslan Bilovol struct usb_audio_term *iterm, 153117156f23SRuslan Bilovol struct usb_audio_term *oterm, 153217156f23SRuslan Bilovol int unitid, int nameid, int readonly_mask) 1533f0b5e634SDaniel Mack { 1534bc18e31cSJulian Scheel struct usb_feature_control_info *ctl_info; 1535f0b5e634SDaniel Mack unsigned int len = 0; 1536f0b5e634SDaniel Mack int mapped_name = 0; 1537f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1538f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1539f0b5e634SDaniel Mack const struct usbmix_name_map *map; 154080acefffSAlexey Fisher unsigned int range; 1541f0b5e634SDaniel Mack 154265f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1543f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1544f0b5e634SDaniel Mack return; 1545f0b5e634SDaniel Mack } 1546f0b5e634SDaniel Mack 154717156f23SRuslan Bilovol map = find_map(imap, unitid, control); 1548f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1549f0b5e634SDaniel Mack return; 1550f0b5e634SDaniel Mack 1551f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1552a860d95fSDaniel Mack if (!cval) 1553f0b5e634SDaniel Mack return; 155417156f23SRuslan Bilovol snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); 1555f0b5e634SDaniel Mack cval->control = control; 1556f0b5e634SDaniel Mack cval->cmask = ctl_mask; 155721e9b3e9SAndrew Chant 155821e9b3e9SAndrew Chant ctl_info = get_feature_control_info(control); 155962376025SColin Ian King if (!ctl_info) { 156052c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 156121e9b3e9SAndrew Chant return; 156262376025SColin Ian King } 156317156f23SRuslan Bilovol if (mixer->protocol == UAC_VERSION_1) 1564bc18e31cSJulian Scheel cval->val_type = ctl_info->type; 1565bc18e31cSJulian Scheel else /* UAC_VERSION_2 */ 1566bc18e31cSJulian Scheel cval->val_type = ctl_info->type_uac2 >= 0 ? 1567bc18e31cSJulian Scheel ctl_info->type_uac2 : ctl_info->type; 1568bc18e31cSJulian Scheel 1569a6a33259SDaniel Mack if (ctl_mask == 0) { 1570f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1571a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1572a6a33259SDaniel Mack } else { 1573f0b5e634SDaniel Mack int i, c = 0; 1574f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1575f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1576f0b5e634SDaniel Mack c++; 1577f0b5e634SDaniel Mack cval->channels = c; 1578a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1579f0b5e634SDaniel Mack } 1580f0b5e634SDaniel Mack 15816bc170e4SDaniel Mack /* 15826bc170e4SDaniel Mack * If all channels in the mask are marked read-only, make the control 1583eef90451SChris J Arges * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't 15846bc170e4SDaniel Mack * issue write commands to read-only channels. 15856bc170e4SDaniel Mack */ 1586a6a33259SDaniel Mack if (cval->channels == readonly_mask) 158723caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 158823caaf19SDaniel Mack else 1589f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 159023caaf19SDaniel Mack 1591f0b5e634SDaniel Mack if (!kctl) { 159217156f23SRuslan Bilovol usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); 159352c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 1594f0b5e634SDaniel Mack return; 1595f0b5e634SDaniel Mack } 1596eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 1597f0b5e634SDaniel Mack 1598f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1599f0b5e634SDaniel Mack mapped_name = len != 0; 1600f0b5e634SDaniel Mack if (!len && nameid) 160117156f23SRuslan Bilovol len = snd_usb_copy_string_desc(mixer->chip, nameid, 1602f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1603f0b5e634SDaniel Mack 1604f0b5e634SDaniel Mack switch (control) { 160565f25da4SDaniel Mack case UAC_FU_MUTE: 160665f25da4SDaniel Mack case UAC_FU_VOLUME: 16076bc170e4SDaniel Mack /* 16086bc170e4SDaniel Mack * determine the control name. the rule is: 1609f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1610f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1611f0b5e634SDaniel Mack * of terminal type. 1612f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1613f0b5e634SDaniel Mack * - otherwise, anonymous name. 1614f0b5e634SDaniel Mack */ 1615f0b5e634SDaniel Mack if (!len) { 161617156f23SRuslan Bilovol if (iterm) 161717156f23SRuslan Bilovol len = get_term_name(mixer->chip, iterm, 161817156f23SRuslan Bilovol kctl->id.name, 16196bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 162017156f23SRuslan Bilovol if (!len && oterm) 162117156f23SRuslan Bilovol len = get_term_name(mixer->chip, oterm, 16226bc170e4SDaniel Mack kctl->id.name, 16236bc170e4SDaniel Mack sizeof(kctl->id.name), 1); 1624f0b5e634SDaniel Mack if (!len) 162549fd46d2SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1626f0b5e634SDaniel Mack "Feature %d", unitid); 1627f0b5e634SDaniel Mack } 16289b4ef977SDavid Henningsson 16299b4ef977SDavid Henningsson if (!mapped_name) 163017156f23SRuslan Bilovol check_no_speaker_on_headset(kctl, mixer->chip->card); 16319b4ef977SDavid Henningsson 16326bc170e4SDaniel Mack /* 16336bc170e4SDaniel Mack * determine the stream direction: 1634f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1635f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1636f0b5e634SDaniel Mack */ 163717156f23SRuslan Bilovol if (!mapped_name && oterm && !(oterm->type >> 16)) { 163817156f23SRuslan Bilovol if ((oterm->type & 0xff00) == 0x0100) 163949fd46d2SDaniel Mack append_ctl_name(kctl, " Capture"); 16406bc170e4SDaniel Mack else 164149fd46d2SDaniel Mack append_ctl_name(kctl, " Playback"); 1642f0b5e634SDaniel Mack } 164365f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1644f0b5e634SDaniel Mack " Switch" : " Volume"); 1645e182534dSTakashi Iwai break; 1646e182534dSTakashi Iwai default: 1647e182534dSTakashi Iwai if (!len) 1648e182534dSTakashi Iwai strlcpy(kctl->id.name, audio_feature_info[control-1].name, 1649e182534dSTakashi Iwai sizeof(kctl->id.name)); 1650e182534dSTakashi Iwai break; 1651e182534dSTakashi Iwai } 1652e182534dSTakashi Iwai 1653e182534dSTakashi Iwai /* get min/max values */ 1654e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1655e182534dSTakashi Iwai 165665f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 165759bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 165838b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1659285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1660f0b5e634SDaniel Mack kctl->vd[0].access |= 1661f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1662f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 166359bb7f0eSTakashi Iwai } 1664f0b5e634SDaniel Mack } 1665f0b5e634SDaniel Mack 166617156f23SRuslan Bilovol snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl); 166742e3121dSAnssi Hannula 166880acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 16696bc170e4SDaniel Mack /* 16706bc170e4SDaniel Mack * Are there devices with volume range more than 255? I use a bit more 167180acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 167280acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 167380acefffSAlexey Fisher */ 167480acefffSAlexey Fisher if (range > 384) { 167517156f23SRuslan Bilovol usb_audio_warn(mixer->chip, 167682c1cf0aSMichał Mirosław "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", 167780acefffSAlexey Fisher range); 167817156f23SRuslan Bilovol usb_audio_warn(mixer->chip, 167982c1cf0aSMichał Mirosław "[%d] FU [%s] ch = %d, val = %d/%d/%d", 16803360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 168180acefffSAlexey Fisher cval->min, cval->max, cval->res); 168280acefffSAlexey Fisher } 168380acefffSAlexey Fisher 168417156f23SRuslan Bilovol usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 16853360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 16866bc170e4SDaniel Mack cval->min, cval->max, cval->res); 16873360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 1688f0b5e634SDaniel Mack } 1689f0b5e634SDaniel Mack 169017156f23SRuslan Bilovol static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 169117156f23SRuslan Bilovol unsigned int ctl_mask, int control, 169217156f23SRuslan Bilovol struct usb_audio_term *iterm, int unitid, 169317156f23SRuslan Bilovol int readonly_mask) 169417156f23SRuslan Bilovol { 169517156f23SRuslan Bilovol struct uac_feature_unit_descriptor *desc = raw_desc; 169617156f23SRuslan Bilovol int nameid = uac_feature_unit_iFeature(desc); 169717156f23SRuslan Bilovol 169817156f23SRuslan Bilovol __build_feature_ctl(state->mixer, state->map, ctl_mask, control, 169917156f23SRuslan Bilovol iterm, &state->oterm, unitid, nameid, readonly_mask); 170017156f23SRuslan Bilovol } 170117156f23SRuslan Bilovol 170217156f23SRuslan Bilovol static void build_feature_ctl_badd(struct usb_mixer_interface *mixer, 170317156f23SRuslan Bilovol unsigned int ctl_mask, int control, int unitid, 170417156f23SRuslan Bilovol const struct usbmix_name_map *badd_map) 170517156f23SRuslan Bilovol { 170617156f23SRuslan Bilovol __build_feature_ctl(mixer, badd_map, ctl_mask, control, 170717156f23SRuslan Bilovol NULL, NULL, unitid, 0, 0); 170817156f23SRuslan Bilovol } 170917156f23SRuslan Bilovol 1710167e1fb1SJorge Sanjuan static void get_connector_control_name(struct usb_mixer_interface *mixer, 17115a222e84SAndrew Chant struct usb_audio_term *term, 17125a222e84SAndrew Chant bool is_input, char *name, int name_size) 17135a222e84SAndrew Chant { 1714167e1fb1SJorge Sanjuan int name_len = get_term_name(mixer->chip, term, name, name_size, 0); 17155a222e84SAndrew Chant 17165a222e84SAndrew Chant if (name_len == 0) 17175a222e84SAndrew Chant strlcpy(name, "Unknown", name_size); 17185a222e84SAndrew Chant 17195a222e84SAndrew Chant /* 17205a222e84SAndrew Chant * sound/core/ctljack.c has a convention of naming jack controls 17215a222e84SAndrew Chant * by ending in " Jack". Make it slightly more useful by 17225a222e84SAndrew Chant * indicating Input or Output after the terminal name. 17235a222e84SAndrew Chant */ 17245a222e84SAndrew Chant if (is_input) 17255a222e84SAndrew Chant strlcat(name, " - Input Jack", name_size); 17265a222e84SAndrew Chant else 17275a222e84SAndrew Chant strlcat(name, " - Output Jack", name_size); 17285a222e84SAndrew Chant } 17295a222e84SAndrew Chant 17305a222e84SAndrew Chant /* Build a mixer control for a UAC connector control (jack-detect) */ 1731167e1fb1SJorge Sanjuan static void build_connector_control(struct usb_mixer_interface *mixer, 17325a222e84SAndrew Chant struct usb_audio_term *term, bool is_input) 17335a222e84SAndrew Chant { 17345a222e84SAndrew Chant struct snd_kcontrol *kctl; 17355a222e84SAndrew Chant struct usb_mixer_elem_info *cval; 17365a222e84SAndrew Chant 17375a222e84SAndrew Chant cval = kzalloc(sizeof(*cval), GFP_KERNEL); 17385a222e84SAndrew Chant if (!cval) 17395a222e84SAndrew Chant return; 1740167e1fb1SJorge Sanjuan snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id); 1741568fa7e0SAndrew Chant /* 17421d38f5d8SJorge Sanjuan * UAC2: The first byte from reading the UAC2_TE_CONNECTOR control returns the 17431d38f5d8SJorge Sanjuan * number of channels connected. 17441d38f5d8SJorge Sanjuan * 17451d38f5d8SJorge Sanjuan * UAC3: The first byte specifies size of bitmap for the inserted controls. The 17461d38f5d8SJorge Sanjuan * following byte(s) specifies which connectors are inserted. 17471d38f5d8SJorge Sanjuan * 17481d38f5d8SJorge Sanjuan * This boolean ctl will simply report if any channels are connected 17491d38f5d8SJorge Sanjuan * or not. 1750568fa7e0SAndrew Chant */ 1751167e1fb1SJorge Sanjuan if (mixer->protocol == UAC_VERSION_2) 17525a222e84SAndrew Chant cval->control = UAC2_TE_CONNECTOR; 17531d38f5d8SJorge Sanjuan else /* UAC_VERSION_3 */ 17541d38f5d8SJorge Sanjuan cval->control = UAC3_TE_INSERTION; 17551d38f5d8SJorge Sanjuan 17565a222e84SAndrew Chant cval->val_type = USB_MIXER_BOOLEAN; 17575a222e84SAndrew Chant cval->channels = 1; /* report true if any channel is connected */ 17585a222e84SAndrew Chant cval->min = 0; 17595a222e84SAndrew Chant cval->max = 1; 17601d38f5d8SJorge Sanjuan kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval); 17615a222e84SAndrew Chant if (!kctl) { 1762167e1fb1SJorge Sanjuan usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); 176352c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 17645a222e84SAndrew Chant return; 17655a222e84SAndrew Chant } 1766167e1fb1SJorge Sanjuan get_connector_control_name(mixer, term, is_input, kctl->id.name, 17675a222e84SAndrew Chant sizeof(kctl->id.name)); 17685a222e84SAndrew Chant kctl->private_free = snd_usb_mixer_elem_free; 17695a222e84SAndrew Chant snd_usb_mixer_add_control(&cval->head, kctl); 17705a222e84SAndrew Chant } 17715a222e84SAndrew Chant 1772cddaafb9SDaniel Mack static int parse_clock_source_unit(struct mixer_build *state, int unitid, 1773cddaafb9SDaniel Mack void *_ftr) 1774cddaafb9SDaniel Mack { 1775cddaafb9SDaniel Mack struct uac_clock_source_descriptor *hdr = _ftr; 1776cddaafb9SDaniel Mack struct usb_mixer_elem_info *cval; 1777cddaafb9SDaniel Mack struct snd_kcontrol *kctl; 1778cddaafb9SDaniel Mack char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 1779cddaafb9SDaniel Mack int ret; 1780cddaafb9SDaniel Mack 1781cddaafb9SDaniel Mack if (state->mixer->protocol != UAC_VERSION_2) 1782cddaafb9SDaniel Mack return -EINVAL; 1783cddaafb9SDaniel Mack 1784cddaafb9SDaniel Mack if (hdr->bLength != sizeof(*hdr)) { 1785cddaafb9SDaniel Mack usb_audio_dbg(state->chip, 1786cddaafb9SDaniel Mack "Bogus clock source descriptor length of %d, ignoring.\n", 1787cddaafb9SDaniel Mack hdr->bLength); 1788cddaafb9SDaniel Mack return 0; 1789cddaafb9SDaniel Mack } 1790cddaafb9SDaniel Mack 1791cddaafb9SDaniel Mack /* 1792cddaafb9SDaniel Mack * The only property of this unit we are interested in is the 1793cddaafb9SDaniel Mack * clock source validity. If that isn't readable, just bail out. 1794cddaafb9SDaniel Mack */ 17959a2fe9b8SRuslan Bilovol if (!uac_v2v3_control_is_readable(hdr->bmControls, 179621e9b3e9SAndrew Chant UAC2_CS_CONTROL_CLOCK_VALID)) 1797cddaafb9SDaniel Mack return 0; 1798cddaafb9SDaniel Mack 1799cddaafb9SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1800cddaafb9SDaniel Mack if (!cval) 1801cddaafb9SDaniel Mack return -ENOMEM; 1802cddaafb9SDaniel Mack 1803cddaafb9SDaniel Mack snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); 1804cddaafb9SDaniel Mack 1805cddaafb9SDaniel Mack cval->min = 0; 1806cddaafb9SDaniel Mack cval->max = 1; 1807cddaafb9SDaniel Mack cval->channels = 1; 1808cddaafb9SDaniel Mack cval->val_type = USB_MIXER_BOOLEAN; 1809cddaafb9SDaniel Mack cval->control = UAC2_CS_CONTROL_CLOCK_VALID; 1810cddaafb9SDaniel Mack 1811cddaafb9SDaniel Mack cval->master_readonly = 1; 1812568fa7e0SAndrew Chant /* From UAC2 5.2.5.1.2 "Only the get request is supported." */ 1813568fa7e0SAndrew Chant kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval); 1814cddaafb9SDaniel Mack 1815cddaafb9SDaniel Mack if (!kctl) { 181652c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 1817cddaafb9SDaniel Mack return -ENOMEM; 1818cddaafb9SDaniel Mack } 1819cddaafb9SDaniel Mack 1820cddaafb9SDaniel Mack kctl->private_free = snd_usb_mixer_elem_free; 1821eccfc1b8SRuslan Bilovol ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource, 1822cddaafb9SDaniel Mack name, sizeof(name)); 1823cddaafb9SDaniel Mack if (ret > 0) 1824cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1825cddaafb9SDaniel Mack "%s Validity", name); 1826cddaafb9SDaniel Mack else 1827cddaafb9SDaniel Mack snprintf(kctl->id.name, sizeof(kctl->id.name), 1828cddaafb9SDaniel Mack "Clock Source %d Validity", hdr->bClockID); 1829cddaafb9SDaniel Mack 1830cddaafb9SDaniel Mack return snd_usb_mixer_add_control(&cval->head, kctl); 1831cddaafb9SDaniel Mack } 1832cddaafb9SDaniel Mack 1833f0b5e634SDaniel Mack /* 1834f0b5e634SDaniel Mack * parse a feature unit 1835f0b5e634SDaniel Mack * 183625985edcSLucas De Marchi * most of controls are defined here. 1837f0b5e634SDaniel Mack */ 18386bc170e4SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, 18396bc170e4SDaniel Mack void *_ftr) 1840f0b5e634SDaniel Mack { 1841f0b5e634SDaniel Mack int channels, i, j; 1842f0b5e634SDaniel Mack struct usb_audio_term iterm; 184336c346e1SYueHaibing unsigned int master_bits; 1844f0b5e634SDaniel Mack int err, csize; 184523caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 184623caaf19SDaniel Mack __u8 *bmaControls; 1847f0b5e634SDaniel Mack 184823caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1849d937cd67STakashi Iwai if (hdr->bLength < 7) { 1850d937cd67STakashi Iwai usb_audio_err(state->chip, 1851d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1852d937cd67STakashi Iwai unitid); 1853d937cd67STakashi Iwai return -EINVAL; 1854d937cd67STakashi Iwai } 185523caaf19SDaniel Mack csize = hdr->bControlSize; 18563c02a6d9STakashi Iwai if (!csize) { 18570ba41d91STakashi Iwai usb_audio_dbg(state->chip, 18583c02a6d9STakashi Iwai "unit %u: invalid bControlSize == 0\n", 18590ba41d91STakashi Iwai unitid); 186060c961a9SNicolai Krakowiak return -EINVAL; 186160c961a9SNicolai Krakowiak } 186223caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 186323caaf19SDaniel Mack bmaControls = hdr->bmaControls; 1864d56268fbSClemens Ladisch if (hdr->bLength < 7 + csize) { 18650ba41d91STakashi Iwai usb_audio_err(state->chip, 18660ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1867d56268fbSClemens Ladisch unitid); 1868d56268fbSClemens Ladisch return -EINVAL; 1869d56268fbSClemens Ladisch } 18709a2fe9b8SRuslan Bilovol } else if (state->mixer->protocol == UAC_VERSION_2) { 187123caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 1872d937cd67STakashi Iwai if (hdr->bLength < 6) { 1873d937cd67STakashi Iwai usb_audio_err(state->chip, 1874d937cd67STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1875d937cd67STakashi Iwai unitid); 1876d937cd67STakashi Iwai return -EINVAL; 1877d937cd67STakashi Iwai } 187823caaf19SDaniel Mack csize = 4; 1879e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 188023caaf19SDaniel Mack bmaControls = ftr->bmaControls; 1881d56268fbSClemens Ladisch if (hdr->bLength < 6 + csize) { 18820ba41d91STakashi Iwai usb_audio_err(state->chip, 18830ba41d91STakashi Iwai "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", 1884d56268fbSClemens Ladisch unitid); 1885f0b5e634SDaniel Mack return -EINVAL; 1886f0b5e634SDaniel Mack } 18879a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 18889a2fe9b8SRuslan Bilovol struct uac3_feature_unit_descriptor *ftr = _ftr; 18899a2fe9b8SRuslan Bilovol 18909a2fe9b8SRuslan Bilovol if (hdr->bLength < 7) { 18919a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 18929a2fe9b8SRuslan Bilovol "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n", 18939a2fe9b8SRuslan Bilovol unitid); 18949a2fe9b8SRuslan Bilovol return -EINVAL; 18959a2fe9b8SRuslan Bilovol } 18969a2fe9b8SRuslan Bilovol csize = 4; 18979a2fe9b8SRuslan Bilovol channels = (ftr->bLength - 7) / 4 - 1; 18989a2fe9b8SRuslan Bilovol bmaControls = ftr->bmaControls; 18999a2fe9b8SRuslan Bilovol if (hdr->bLength < 7 + csize) { 19009a2fe9b8SRuslan Bilovol usb_audio_err(state->chip, 19019a2fe9b8SRuslan Bilovol "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n", 19029a2fe9b8SRuslan Bilovol unitid); 19039a2fe9b8SRuslan Bilovol return -EINVAL; 19049a2fe9b8SRuslan Bilovol } 1905d56268fbSClemens Ladisch } 1906f0b5e634SDaniel Mack 1907f0b5e634SDaniel Mack /* parse the source unit */ 1908f25ecf8fSTakashi Iwai err = parse_audio_unit(state, hdr->bSourceID); 1909f25ecf8fSTakashi Iwai if (err < 0) 1910f0b5e634SDaniel Mack return err; 1911f0b5e634SDaniel Mack 1912f0b5e634SDaniel Mack /* determine the input source type and name */ 19134d7b86c9SDaniel Mack err = check_input_term(state, hdr->bSourceID, &iterm); 19144d7b86c9SDaniel Mack if (err < 0) 19154d7b86c9SDaniel Mack return err; 1916f0b5e634SDaniel Mack 191723caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 1918f0b5e634SDaniel Mack /* master configuration quirks */ 1919f0b5e634SDaniel Mack switch (state->chip->usb_id) { 1920f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 19210ba41d91STakashi Iwai usb_audio_info(state->chip, 1922f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 1923f0b5e634SDaniel Mack /* disable non-functional volume control */ 192465f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 1925f0b5e634SDaniel Mack break; 1926c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 19270ba41d91STakashi Iwai usb_audio_info(state->chip, 1928c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 1929c1051439SDavid Henningsson /* disable non-functional volume control */ 1930c1051439SDavid Henningsson channels = 0; 1931c1051439SDavid Henningsson break; 1932c1051439SDavid Henningsson 1933f0b5e634SDaniel Mack } 193423caaf19SDaniel Mack 193523caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1936f0b5e634SDaniel Mack /* check all control types */ 1937f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 1938f0b5e634SDaniel Mack unsigned int ch_bits = 0; 193921e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 194021e9b3e9SAndrew Chant 1941f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 19426bc170e4SDaniel Mack unsigned int mask; 19436bc170e4SDaniel Mack 19446bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 19456bc170e4SDaniel Mack csize * (j+1), csize); 1946f0b5e634SDaniel Mack if (mask & (1 << i)) 1947f0b5e634SDaniel Mack ch_bits |= (1 << j); 1948f0b5e634SDaniel Mack } 194923caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 19506bc170e4SDaniel Mack 19516bc170e4SDaniel Mack /* 19526bc170e4SDaniel Mack * The first channel must be set 19536bc170e4SDaniel Mack * (for ease of programming). 19546bc170e4SDaniel Mack */ 19556bc170e4SDaniel Mack if (ch_bits & 1) 195621e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 19576bc170e4SDaniel Mack &iterm, unitid, 0); 1958f0b5e634SDaniel Mack if (master_bits & (1 << i)) 195921e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, 0, control, 196021e9b3e9SAndrew Chant &iterm, unitid, 0); 196123caaf19SDaniel Mack } 19629a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_2/3 */ 1963d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 196423caaf19SDaniel Mack unsigned int ch_bits = 0; 196523caaf19SDaniel Mack unsigned int ch_read_only = 0; 196621e9b3e9SAndrew Chant int control = audio_feature_info[i].control; 196723caaf19SDaniel Mack 196823caaf19SDaniel Mack for (j = 0; j < channels; j++) { 19696bc170e4SDaniel Mack unsigned int mask; 19706bc170e4SDaniel Mack 19716bc170e4SDaniel Mack mask = snd_usb_combine_bytes(bmaControls + 19726bc170e4SDaniel Mack csize * (j+1), csize); 197321e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(mask, control)) { 197423caaf19SDaniel Mack ch_bits |= (1 << j); 197521e9b3e9SAndrew Chant if (!uac_v2v3_control_is_writeable(mask, control)) 197623caaf19SDaniel Mack ch_read_only |= (1 << j); 197723caaf19SDaniel Mack } 197823caaf19SDaniel Mack } 197923caaf19SDaniel Mack 19806bc170e4SDaniel Mack /* 19816bc170e4SDaniel Mack * NOTE: build_feature_ctl() will mark the control 19826bc170e4SDaniel Mack * read-only if all channels are marked read-only in 19836bc170e4SDaniel Mack * the descriptors. Otherwise, the control will be 19846bc170e4SDaniel Mack * reported as writeable, but the driver will not 19856bc170e4SDaniel Mack * actually issue a write command for read-only 19866bc170e4SDaniel Mack * channels. 19876bc170e4SDaniel Mack */ 19886bc170e4SDaniel Mack 19896bc170e4SDaniel Mack /* 19906bc170e4SDaniel Mack * The first channel must be set 19916bc170e4SDaniel Mack * (for ease of programming). 19926bc170e4SDaniel Mack */ 19936bc170e4SDaniel Mack if (ch_bits & 1) 199421e9b3e9SAndrew Chant build_feature_ctl(state, _ftr, ch_bits, control, 19956bc170e4SDaniel Mack &iterm, unitid, ch_read_only); 199621e9b3e9SAndrew Chant if (uac_v2v3_control_is_readable(master_bits, control)) 19972de841efSTakashi Iwai build_feature_ctl(state, _ftr, 0, control, 19982de841efSTakashi Iwai &iterm, unitid, 199921e9b3e9SAndrew Chant !uac_v2v3_control_is_writeable(master_bits, 200021e9b3e9SAndrew Chant control)); 200123caaf19SDaniel Mack } 2002f0b5e634SDaniel Mack } 2003f0b5e634SDaniel Mack 2004f0b5e634SDaniel Mack return 0; 2005f0b5e634SDaniel Mack } 2006f0b5e634SDaniel Mack 2007f0b5e634SDaniel Mack /* 2008f0b5e634SDaniel Mack * Mixer Unit 2009f0b5e634SDaniel Mack */ 2010f0b5e634SDaniel Mack 2011f9f0e9edSTakashi Iwai /* check whether the given in/out overflows bmMixerControls matrix */ 2012f9f0e9edSTakashi Iwai static bool mixer_bitmap_overflow(struct uac_mixer_unit_descriptor *desc, 2013f9f0e9edSTakashi Iwai int protocol, int num_ins, int num_outs) 2014f9f0e9edSTakashi Iwai { 2015f9f0e9edSTakashi Iwai u8 *hdr = (u8 *)desc; 2016f9f0e9edSTakashi Iwai u8 *c = uac_mixer_unit_bmControls(desc, protocol); 2017f9f0e9edSTakashi Iwai size_t rest; /* remaining bytes after bmMixerControls */ 2018f9f0e9edSTakashi Iwai 2019f9f0e9edSTakashi Iwai switch (protocol) { 2020f9f0e9edSTakashi Iwai case UAC_VERSION_1: 2021f9f0e9edSTakashi Iwai default: 2022f9f0e9edSTakashi Iwai rest = 1; /* iMixer */ 2023f9f0e9edSTakashi Iwai break; 2024f9f0e9edSTakashi Iwai case UAC_VERSION_2: 2025f9f0e9edSTakashi Iwai rest = 2; /* bmControls + iMixer */ 2026f9f0e9edSTakashi Iwai break; 2027f9f0e9edSTakashi Iwai case UAC_VERSION_3: 2028f9f0e9edSTakashi Iwai rest = 6; /* bmControls + wMixerDescrStr */ 2029f9f0e9edSTakashi Iwai break; 2030f9f0e9edSTakashi Iwai } 2031f9f0e9edSTakashi Iwai 2032f9f0e9edSTakashi Iwai /* overflow? */ 2033f9f0e9edSTakashi Iwai return c + (num_ins * num_outs + 7) / 8 + rest > hdr + hdr[0]; 2034f9f0e9edSTakashi Iwai } 2035f9f0e9edSTakashi Iwai 2036f0b5e634SDaniel Mack /* 2037f0b5e634SDaniel Mack * build a mixer unit control 2038f0b5e634SDaniel Mack * 2039f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 2040f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 2041f0b5e634SDaniel Mack */ 204299fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 204399fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 20446cfd839aSJorge Sanjuan int in_pin, int in_ch, int num_outs, 20456cfd839aSJorge Sanjuan int unitid, struct usb_audio_term *iterm) 2046f0b5e634SDaniel Mack { 2047f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2048f0b5e634SDaniel Mack unsigned int i, len; 2049f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2050f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2051f0b5e634SDaniel Mack 205217156f23SRuslan Bilovol map = find_map(state->map, unitid, 0); 2053f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2054f0b5e634SDaniel Mack return; 2055f0b5e634SDaniel Mack 2056f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2057f0b5e634SDaniel Mack if (!cval) 2058f0b5e634SDaniel Mack return; 2059f0b5e634SDaniel Mack 20603360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2061f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 2062f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 2063f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 20646bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); 20656bc170e4SDaniel Mack 20666bc170e4SDaniel Mack if (check_matrix_bitmap(c, in_ch, i, num_outs)) { 2067f0b5e634SDaniel Mack cval->cmask |= (1 << i); 2068f0b5e634SDaniel Mack cval->channels++; 2069f0b5e634SDaniel Mack } 2070f0b5e634SDaniel Mack } 2071f0b5e634SDaniel Mack 2072f0b5e634SDaniel Mack /* get min/max values */ 2073f0b5e634SDaniel Mack get_min_max(cval, 0); 2074f0b5e634SDaniel Mack 2075f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 2076f0b5e634SDaniel Mack if (!kctl) { 20770ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 207852c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 2079f0b5e634SDaniel Mack return; 2080f0b5e634SDaniel Mack } 2081eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2082f0b5e634SDaniel Mack 2083f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 2084f0b5e634SDaniel Mack if (!len) 2085eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, iterm, kctl->id.name, 20866bc170e4SDaniel Mack sizeof(kctl->id.name), 0); 2087f0b5e634SDaniel Mack if (!len) 2088f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 2089f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 2090f0b5e634SDaniel Mack 20910ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", 20923360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); 20933360b84bSTakashi Iwai snd_usb_mixer_add_control(&cval->head, kctl); 2094f0b5e634SDaniel Mack } 2095f0b5e634SDaniel Mack 20965a222e84SAndrew Chant static int parse_audio_input_terminal(struct mixer_build *state, int unitid, 20975a222e84SAndrew Chant void *raw_desc) 20985a222e84SAndrew Chant { 20995a222e84SAndrew Chant struct usb_audio_term iterm; 21001d38f5d8SJorge Sanjuan unsigned int control, bmctls, term_id; 21015a222e84SAndrew Chant 21025a222e84SAndrew Chant if (state->mixer->protocol == UAC_VERSION_2) { 21031d38f5d8SJorge Sanjuan struct uac2_input_terminal_descriptor *d_v2 = raw_desc; 21043e96d728STakashi Iwai if (d_v2->bLength < sizeof(*d_v2)) 21053e96d728STakashi Iwai return -EINVAL; 21061d38f5d8SJorge Sanjuan control = UAC2_TE_CONNECTOR; 21071d38f5d8SJorge Sanjuan term_id = d_v2->bTerminalID; 21081d38f5d8SJorge Sanjuan bmctls = le16_to_cpu(d_v2->bmControls); 21091d38f5d8SJorge Sanjuan } else if (state->mixer->protocol == UAC_VERSION_3) { 21101d38f5d8SJorge Sanjuan struct uac3_input_terminal_descriptor *d_v3 = raw_desc; 21113e96d728STakashi Iwai if (d_v3->bLength < sizeof(*d_v3)) 21123e96d728STakashi Iwai return -EINVAL; 21131d38f5d8SJorge Sanjuan control = UAC3_TE_INSERTION; 21141d38f5d8SJorge Sanjuan term_id = d_v3->bTerminalID; 21151d38f5d8SJorge Sanjuan bmctls = le32_to_cpu(d_v3->bmControls); 21161d38f5d8SJorge Sanjuan } else { 21171d38f5d8SJorge Sanjuan return 0; /* UAC1. No Insertion control */ 21181d38f5d8SJorge Sanjuan } 21191d38f5d8SJorge Sanjuan 21201d38f5d8SJorge Sanjuan check_input_term(state, term_id, &iterm); 21211d38f5d8SJorge Sanjuan 21225a222e84SAndrew Chant /* Check for jack detection. */ 21231d38f5d8SJorge Sanjuan if (uac_v2v3_control_is_readable(bmctls, control)) 2124167e1fb1SJorge Sanjuan build_connector_control(state->mixer, &iterm, true); 21251d38f5d8SJorge Sanjuan 21265a222e84SAndrew Chant return 0; 21275a222e84SAndrew Chant } 21285a222e84SAndrew Chant 2129f0b5e634SDaniel Mack /* 2130f0b5e634SDaniel Mack * parse a mixer unit 2131f0b5e634SDaniel Mack */ 21326bc170e4SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, 21336bc170e4SDaniel Mack void *raw_desc) 2134f0b5e634SDaniel Mack { 213599fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 2136f0b5e634SDaniel Mack struct usb_audio_term iterm; 2137f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 2138f0b5e634SDaniel Mack int pin, ich, err; 2139f0b5e634SDaniel Mack 21406cfd839aSJorge Sanjuan err = uac_mixer_unit_get_channels(state, desc); 21416cfd839aSJorge Sanjuan if (err < 0) { 21426bc170e4SDaniel Mack usb_audio_err(state->chip, 21436bc170e4SDaniel Mack "invalid MIXER UNIT descriptor %d\n", 21446bc170e4SDaniel Mack unitid); 21456cfd839aSJorge Sanjuan return err; 2146f0b5e634SDaniel Mack } 2147f0b5e634SDaniel Mack 21486cfd839aSJorge Sanjuan num_outs = err; 21496cfd839aSJorge Sanjuan input_pins = desc->bNrInPins; 21506cfd839aSJorge Sanjuan 2151f0b5e634SDaniel Mack num_ins = 0; 2152f0b5e634SDaniel Mack ich = 0; 2153f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 215499fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 2155f0b5e634SDaniel Mack if (err < 0) 2156284a8dd6SMark Hills continue; 2157ea114fc2SClemens Ladisch /* no bmControls field (e.g. Maya44) -> ignore */ 21580bfe5e43STakashi Iwai if (!num_outs) 2159ea114fc2SClemens Ladisch continue; 216099fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 2161f0b5e634SDaniel Mack if (err < 0) 2162f0b5e634SDaniel Mack return err; 2163f0b5e634SDaniel Mack num_ins += iterm.channels; 2164f9f0e9edSTakashi Iwai if (mixer_bitmap_overflow(desc, state->mixer->protocol, 2165f9f0e9edSTakashi Iwai num_ins, num_outs)) 2166f9f0e9edSTakashi Iwai break; 21676bc170e4SDaniel Mack for (; ich < num_ins; ich++) { 2168f0b5e634SDaniel Mack int och, ich_has_controls = 0; 2169f0b5e634SDaniel Mack 21706bc170e4SDaniel Mack for (och = 0; och < num_outs; och++) { 21716bc170e4SDaniel Mack __u8 *c = uac_mixer_unit_bmControls(desc, 21726bc170e4SDaniel Mack state->mixer->protocol); 21736bc170e4SDaniel Mack 21746bc170e4SDaniel Mack if (check_matrix_bitmap(c, ich, och, num_outs)) { 2175f0b5e634SDaniel Mack ich_has_controls = 1; 2176f0b5e634SDaniel Mack break; 2177f0b5e634SDaniel Mack } 2178f0b5e634SDaniel Mack } 2179f0b5e634SDaniel Mack if (ich_has_controls) 21806cfd839aSJorge Sanjuan build_mixer_unit_ctl(state, desc, pin, ich, num_outs, 2181f0b5e634SDaniel Mack unitid, &iterm); 2182f0b5e634SDaniel Mack } 2183f0b5e634SDaniel Mack } 2184f0b5e634SDaniel Mack return 0; 2185f0b5e634SDaniel Mack } 2186f0b5e634SDaniel Mack 2187f0b5e634SDaniel Mack /* 2188f0b5e634SDaniel Mack * Processing Unit / Extension Unit 2189f0b5e634SDaniel Mack */ 2190f0b5e634SDaniel Mack 2191f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 21926bc170e4SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, 21936bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2194f0b5e634SDaniel Mack { 2195f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2196f0b5e634SDaniel Mack int err, val; 2197f0b5e634SDaniel Mack 2198f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 21995aeee342STakashi Iwai if (err < 0) { 2200f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 22015aeee342STakashi Iwai return filter_error(cval, err); 2202f0b5e634SDaniel Mack } 2203f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2204f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 2205f0b5e634SDaniel Mack return 0; 2206f0b5e634SDaniel Mack } 2207f0b5e634SDaniel Mack 2208f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 22096bc170e4SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, 22106bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2211f0b5e634SDaniel Mack { 2212f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2213f0b5e634SDaniel Mack int val, oval, err; 2214f0b5e634SDaniel Mack 2215f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 22165aeee342STakashi Iwai if (err < 0) 22175aeee342STakashi Iwai return filter_error(cval, err); 2218f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 2219f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2220f0b5e634SDaniel Mack if (val != oval) { 2221f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2222f0b5e634SDaniel Mack return 1; 2223f0b5e634SDaniel Mack } 2224f0b5e634SDaniel Mack return 0; 2225f0b5e634SDaniel Mack } 2226f0b5e634SDaniel Mack 2227f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 22288fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_procunit_ctl = { 2229f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2230f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2231f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 2232f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 2233f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 2234f0b5e634SDaniel Mack }; 2235f0b5e634SDaniel Mack 2236f0b5e634SDaniel Mack /* 2237f0b5e634SDaniel Mack * predefined data for processing units 2238f0b5e634SDaniel Mack */ 2239f0b5e634SDaniel Mack struct procunit_value_info { 2240f0b5e634SDaniel Mack int control; 2241f0b5e634SDaniel Mack char *suffix; 2242f0b5e634SDaniel Mack int val_type; 2243f0b5e634SDaniel Mack int min_value; 2244f0b5e634SDaniel Mack }; 2245f0b5e634SDaniel Mack 2246f0b5e634SDaniel Mack struct procunit_info { 2247f0b5e634SDaniel Mack int type; 2248f0b5e634SDaniel Mack char *name; 2249f0b5e634SDaniel Mack struct procunit_value_info *values; 2250f0b5e634SDaniel Mack }; 2251f0b5e634SDaniel Mack 22520f292f02SJorge Sanjuan static struct procunit_value_info undefined_proc_info[] = { 22530f292f02SJorge Sanjuan { 0x00, "Control Undefined", 0 }, 22540f292f02SJorge Sanjuan { 0 } 22550f292f02SJorge Sanjuan }; 22560f292f02SJorge Sanjuan 2257f0b5e634SDaniel Mack static struct procunit_value_info updown_proc_info[] = { 225865f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 225965f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 2260f0b5e634SDaniel Mack { 0 } 2261f0b5e634SDaniel Mack }; 2262f0b5e634SDaniel Mack static struct procunit_value_info prologic_proc_info[] = { 226365f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 226465f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 2265f0b5e634SDaniel Mack { 0 } 2266f0b5e634SDaniel Mack }; 2267f0b5e634SDaniel Mack static struct procunit_value_info threed_enh_proc_info[] = { 226865f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 226965f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 2270f0b5e634SDaniel Mack { 0 } 2271f0b5e634SDaniel Mack }; 2272f0b5e634SDaniel Mack static struct procunit_value_info reverb_proc_info[] = { 227365f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 227465f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 227565f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 227665f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 2277f0b5e634SDaniel Mack { 0 } 2278f0b5e634SDaniel Mack }; 2279f0b5e634SDaniel Mack static struct procunit_value_info chorus_proc_info[] = { 228065f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 228165f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 228265f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 228365f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 2284f0b5e634SDaniel Mack { 0 } 2285f0b5e634SDaniel Mack }; 2286f0b5e634SDaniel Mack static struct procunit_value_info dcr_proc_info[] = { 228765f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 228865f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 228965f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 229065f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 229165f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 229265f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 2293f0b5e634SDaniel Mack { 0 } 2294f0b5e634SDaniel Mack }; 2295f0b5e634SDaniel Mack 2296f0b5e634SDaniel Mack static struct procunit_info procunits[] = { 229765f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 229865f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 229965f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 230065f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 230165f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 230265f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 2303f0b5e634SDaniel Mack { 0 }, 2304f0b5e634SDaniel Mack }; 23050f292f02SJorge Sanjuan 23060f292f02SJorge Sanjuan static struct procunit_value_info uac3_updown_proc_info[] = { 23070f292f02SJorge Sanjuan { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 23080f292f02SJorge Sanjuan { 0 } 23090f292f02SJorge Sanjuan }; 23100f292f02SJorge Sanjuan static struct procunit_value_info uac3_stereo_ext_proc_info[] = { 23110f292f02SJorge Sanjuan { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 }, 23120f292f02SJorge Sanjuan { 0 } 23130f292f02SJorge Sanjuan }; 23140f292f02SJorge Sanjuan 23150f292f02SJorge Sanjuan static struct procunit_info uac3_procunits[] = { 23160f292f02SJorge Sanjuan { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info }, 23170f292f02SJorge Sanjuan { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info }, 23180f292f02SJorge Sanjuan { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info }, 23190f292f02SJorge Sanjuan { 0 }, 23200f292f02SJorge Sanjuan }; 23210f292f02SJorge Sanjuan 2322f0b5e634SDaniel Mack /* 2323f0b5e634SDaniel Mack * predefined data for extension units 2324f0b5e634SDaniel Mack */ 2325f0b5e634SDaniel Mack static struct procunit_value_info clock_rate_xu_info[] = { 2326f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 2327f0b5e634SDaniel Mack { 0 } 2328f0b5e634SDaniel Mack }; 2329f0b5e634SDaniel Mack static struct procunit_value_info clock_source_xu_info[] = { 2330f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 2331f0b5e634SDaniel Mack { 0 } 2332f0b5e634SDaniel Mack }; 2333f0b5e634SDaniel Mack static struct procunit_value_info spdif_format_xu_info[] = { 2334f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 2335f0b5e634SDaniel Mack { 0 } 2336f0b5e634SDaniel Mack }; 2337f0b5e634SDaniel Mack static struct procunit_value_info soft_limit_xu_info[] = { 2338f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 2339f0b5e634SDaniel Mack { 0 } 2340f0b5e634SDaniel Mack }; 2341f0b5e634SDaniel Mack static struct procunit_info extunits[] = { 2342f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 2343f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 2344f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 2345f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 2346f0b5e634SDaniel Mack { 0 } 2347f0b5e634SDaniel Mack }; 23486bc170e4SDaniel Mack 2349f0b5e634SDaniel Mack /* 2350f0b5e634SDaniel Mack * build a processing/extension unit 2351f0b5e634SDaniel Mack */ 23526bc170e4SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, 23536bc170e4SDaniel Mack void *raw_desc, struct procunit_info *list, 2354ca95c7bfSTakashi Iwai bool extension_unit) 2355f0b5e634SDaniel Mack { 235699fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 2357f4351a19STakashi Iwai int num_ins; 2358f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2359f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2360f0b5e634SDaniel Mack int i, err, nameid, type, len; 2361f0b5e634SDaniel Mack struct procunit_info *info; 2362f0b5e634SDaniel Mack struct procunit_value_info *valinfo; 2363f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2364f0b5e634SDaniel Mack static struct procunit_value_info default_value_info[] = { 2365f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 2366f0b5e634SDaniel Mack { 0 } 2367f0b5e634SDaniel Mack }; 2368f0b5e634SDaniel Mack static struct procunit_info default_info = { 2369f0b5e634SDaniel Mack 0, NULL, default_value_info 2370f0b5e634SDaniel Mack }; 2371ca95c7bfSTakashi Iwai const char *name = extension_unit ? 2372ca95c7bfSTakashi Iwai "Extension Unit" : "Processing Unit"; 2373f0b5e634SDaniel Mack 2374f4351a19STakashi Iwai if (desc->bLength < 13) { 2375f4351a19STakashi Iwai usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); 2376f4351a19STakashi Iwai return -EINVAL; 2377f4351a19STakashi Iwai } 2378f4351a19STakashi Iwai 2379f4351a19STakashi Iwai num_ins = desc->bNrInPins; 2380f4351a19STakashi Iwai if (desc->bLength < 13 + num_ins || 238123caaf19SDaniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 23820ba41d91STakashi Iwai usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); 2383f0b5e634SDaniel Mack return -EINVAL; 2384f0b5e634SDaniel Mack } 2385f0b5e634SDaniel Mack 2386f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 2387f25ecf8fSTakashi Iwai err = parse_audio_unit(state, desc->baSourceID[i]); 2388f25ecf8fSTakashi Iwai if (err < 0) 2389f0b5e634SDaniel Mack return err; 2390f0b5e634SDaniel Mack } 2391f0b5e634SDaniel Mack 239299fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 2393f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 2394f0b5e634SDaniel Mack if (info->type == type) 2395f0b5e634SDaniel Mack break; 2396f0b5e634SDaniel Mack if (!info || !info->type) 2397f0b5e634SDaniel Mack info = &default_info; 2398f0b5e634SDaniel Mack 2399f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 240023caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 240199fc8645SDaniel Mack 24024e887af3SJorge Sanjuan if (state->mixer->protocol == UAC_VERSION_1) { 24034e887af3SJorge Sanjuan if (!(controls[valinfo->control / 8] & 24044e887af3SJorge Sanjuan (1 << ((valinfo->control % 8) - 1)))) 2405f0b5e634SDaniel Mack continue; 24064e887af3SJorge Sanjuan } else { /* UAC_VERSION_2/3 */ 24074e887af3SJorge Sanjuan if (!uac_v2v3_control_is_readable(controls[valinfo->control / 8], 24084e887af3SJorge Sanjuan valinfo->control)) 24094e887af3SJorge Sanjuan continue; 24104e887af3SJorge Sanjuan } 24114e887af3SJorge Sanjuan 241217156f23SRuslan Bilovol map = find_map(state->map, unitid, valinfo->control); 2413f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2414f0b5e634SDaniel Mack continue; 2415f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2416a860d95fSDaniel Mack if (!cval) 2417f0b5e634SDaniel Mack return -ENOMEM; 24183360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2419f0b5e634SDaniel Mack cval->control = valinfo->control; 2420f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 2421f0b5e634SDaniel Mack cval->channels = 1; 2422f0b5e634SDaniel Mack 24234e887af3SJorge Sanjuan if (state->mixer->protocol > UAC_VERSION_1 && 24244e887af3SJorge Sanjuan !uac_v2v3_control_is_writeable(controls[valinfo->control / 8], 24254e887af3SJorge Sanjuan valinfo->control)) 24264e887af3SJorge Sanjuan cval->master_readonly = 1; 24274e887af3SJorge Sanjuan 2428f0b5e634SDaniel Mack /* get min/max values */ 242955b8cb46SJorge Sanjuan switch (type) { 243055b8cb46SJorge Sanjuan case UAC_PROCESS_UP_DOWNMIX: { 243155b8cb46SJorge Sanjuan bool mode_sel = false; 243255b8cb46SJorge Sanjuan 243355b8cb46SJorge Sanjuan switch (state->mixer->protocol) { 243455b8cb46SJorge Sanjuan case UAC_VERSION_1: 243555b8cb46SJorge Sanjuan case UAC_VERSION_2: 243655b8cb46SJorge Sanjuan default: 243755b8cb46SJorge Sanjuan if (cval->control == UAC_UD_MODE_SELECT) 243855b8cb46SJorge Sanjuan mode_sel = true; 243955b8cb46SJorge Sanjuan break; 244055b8cb46SJorge Sanjuan case UAC_VERSION_3: 244155b8cb46SJorge Sanjuan if (cval->control == UAC3_UD_MODE_SELECT) 244255b8cb46SJorge Sanjuan mode_sel = true; 244355b8cb46SJorge Sanjuan break; 244455b8cb46SJorge Sanjuan } 244555b8cb46SJorge Sanjuan 244655b8cb46SJorge Sanjuan if (mode_sel) { 244755b8cb46SJorge Sanjuan __u8 *control_spec = uac_processing_unit_specific(desc, 244855b8cb46SJorge Sanjuan state->mixer->protocol); 2449f0b5e634SDaniel Mack cval->min = 1; 245099fc8645SDaniel Mack cval->max = control_spec[0]; 2451f0b5e634SDaniel Mack cval->res = 1; 2452f0b5e634SDaniel Mack cval->initialized = 1; 245355b8cb46SJorge Sanjuan break; 245455b8cb46SJorge Sanjuan } 245555b8cb46SJorge Sanjuan 245655b8cb46SJorge Sanjuan get_min_max(cval, valinfo->min_value); 245755b8cb46SJorge Sanjuan break; 245855b8cb46SJorge Sanjuan } 245955b8cb46SJorge Sanjuan case USB_XU_CLOCK_RATE: 24606bc170e4SDaniel Mack /* 24616bc170e4SDaniel Mack * E-Mu USB 0404/0202/TrackerPre/0204 2462f0b5e634SDaniel Mack * samplerate control quirk 2463f0b5e634SDaniel Mack */ 2464f0b5e634SDaniel Mack cval->min = 0; 2465f0b5e634SDaniel Mack cval->max = 5; 2466f0b5e634SDaniel Mack cval->res = 1; 2467f0b5e634SDaniel Mack cval->initialized = 1; 246855b8cb46SJorge Sanjuan break; 246955b8cb46SJorge Sanjuan default: 2470f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 247155b8cb46SJorge Sanjuan break; 2472f0b5e634SDaniel Mack } 2473f0b5e634SDaniel Mack 2474f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 2475f0b5e634SDaniel Mack if (!kctl) { 247652c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 2477f0b5e634SDaniel Mack return -ENOMEM; 2478f0b5e634SDaniel Mack } 2479eef90451SChris J Arges kctl->private_free = snd_usb_mixer_elem_free; 2480f0b5e634SDaniel Mack 24816bc170e4SDaniel Mack if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { 2482f0b5e634SDaniel Mack /* nothing */ ; 24836bc170e4SDaniel Mack } else if (info->name) { 2484f0b5e634SDaniel Mack strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 24856bc170e4SDaniel Mack } else { 2486ca95c7bfSTakashi Iwai if (extension_unit) 2487ca95c7bfSTakashi Iwai nameid = uac_extension_unit_iExtension(desc, state->mixer->protocol); 2488ca95c7bfSTakashi Iwai else 248923caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 2490f0b5e634SDaniel Mack len = 0; 2491f0b5e634SDaniel Mack if (nameid) 2492eccfc1b8SRuslan Bilovol len = snd_usb_copy_string_desc(state->chip, 2493eccfc1b8SRuslan Bilovol nameid, 24946bc170e4SDaniel Mack kctl->id.name, 24956bc170e4SDaniel Mack sizeof(kctl->id.name)); 2496f0b5e634SDaniel Mack if (!len) 2497f0b5e634SDaniel Mack strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 2498f0b5e634SDaniel Mack } 2499f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 2500f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 2501f0b5e634SDaniel Mack 25020ba41d91STakashi Iwai usb_audio_dbg(state->chip, 25030ba41d91STakashi Iwai "[%d] PU [%s] ch = %d, val = %d/%d\n", 25043360b84bSTakashi Iwai cval->head.id, kctl->id.name, cval->channels, 25056bc170e4SDaniel Mack cval->min, cval->max); 25066bc170e4SDaniel Mack 25073360b84bSTakashi Iwai err = snd_usb_mixer_add_control(&cval->head, kctl); 25086bc170e4SDaniel Mack if (err < 0) 2509f0b5e634SDaniel Mack return err; 2510f0b5e634SDaniel Mack } 2511f0b5e634SDaniel Mack return 0; 2512f0b5e634SDaniel Mack } 2513f0b5e634SDaniel Mack 25146bc170e4SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, 25156bc170e4SDaniel Mack void *raw_desc) 2516f0b5e634SDaniel Mack { 25170f292f02SJorge Sanjuan switch (state->mixer->protocol) { 25180f292f02SJorge Sanjuan case UAC_VERSION_1: 25190f292f02SJorge Sanjuan case UAC_VERSION_2: 25200f292f02SJorge Sanjuan default: 25216bc170e4SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, 2522ca95c7bfSTakashi Iwai procunits, false); 25230f292f02SJorge Sanjuan case UAC_VERSION_3: 25240f292f02SJorge Sanjuan return build_audio_procunit(state, unitid, raw_desc, 2525ca95c7bfSTakashi Iwai uac3_procunits, false); 25260f292f02SJorge Sanjuan } 2527f0b5e634SDaniel Mack } 2528f0b5e634SDaniel Mack 25296bc170e4SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, 25306bc170e4SDaniel Mack void *raw_desc) 2531f0b5e634SDaniel Mack { 25326bc170e4SDaniel Mack /* 25336bc170e4SDaniel Mack * Note that we parse extension units with processing unit descriptors. 25346bc170e4SDaniel Mack * That's ok as the layout is the same. 25356bc170e4SDaniel Mack */ 2536ca95c7bfSTakashi Iwai return build_audio_procunit(state, unitid, raw_desc, extunits, true); 2537f0b5e634SDaniel Mack } 2538f0b5e634SDaniel Mack 2539f0b5e634SDaniel Mack /* 2540f0b5e634SDaniel Mack * Selector Unit 2541f0b5e634SDaniel Mack */ 2542f0b5e634SDaniel Mack 25436bc170e4SDaniel Mack /* 25446bc170e4SDaniel Mack * info callback for selector unit 2545f0b5e634SDaniel Mack * use an enumerator type for routing 2546f0b5e634SDaniel Mack */ 25476bc170e4SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, 25486bc170e4SDaniel Mack struct snd_ctl_elem_info *uinfo) 2549f0b5e634SDaniel Mack { 2550f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 25512a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 2552f0b5e634SDaniel Mack 2553f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 2554f0b5e634SDaniel Mack return -EINVAL; 25552a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 2556f0b5e634SDaniel Mack } 2557f0b5e634SDaniel Mack 2558f0b5e634SDaniel Mack /* get callback for selector unit */ 25596bc170e4SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, 25606bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2561f0b5e634SDaniel Mack { 2562f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2563f0b5e634SDaniel Mack int val, err; 2564f0b5e634SDaniel Mack 256509414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 2566f0b5e634SDaniel Mack if (err < 0) { 2567f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 25685aeee342STakashi Iwai return filter_error(cval, err); 2569f0b5e634SDaniel Mack } 2570f0b5e634SDaniel Mack val = get_relative_value(cval, val); 2571f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 2572f0b5e634SDaniel Mack return 0; 2573f0b5e634SDaniel Mack } 2574f0b5e634SDaniel Mack 2575f0b5e634SDaniel Mack /* put callback for selector unit */ 25766bc170e4SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, 25776bc170e4SDaniel Mack struct snd_ctl_elem_value *ucontrol) 2578f0b5e634SDaniel Mack { 2579f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 2580f0b5e634SDaniel Mack int val, oval, err; 2581f0b5e634SDaniel Mack 258209414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 25835aeee342STakashi Iwai if (err < 0) 25845aeee342STakashi Iwai return filter_error(cval, err); 2585f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 2586f0b5e634SDaniel Mack val = get_abs_value(cval, val); 2587f0b5e634SDaniel Mack if (val != oval) { 258809414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 2589f0b5e634SDaniel Mack return 1; 2590f0b5e634SDaniel Mack } 2591f0b5e634SDaniel Mack return 0; 2592f0b5e634SDaniel Mack } 2593f0b5e634SDaniel Mack 2594f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 25958fdaebbbSBhumika Goyal static const struct snd_kcontrol_new mixer_selectunit_ctl = { 2596f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2597f0b5e634SDaniel Mack .name = "", /* will be filled later */ 2598f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 2599f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 2600f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 2601f0b5e634SDaniel Mack }; 2602f0b5e634SDaniel Mack 26036bc170e4SDaniel Mack /* 26046bc170e4SDaniel Mack * private free callback. 2605f0b5e634SDaniel Mack * free both private_data and private_value 2606f0b5e634SDaniel Mack */ 2607f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 2608f0b5e634SDaniel Mack { 2609f0b5e634SDaniel Mack int i, num_ins = 0; 2610f0b5e634SDaniel Mack 2611f0b5e634SDaniel Mack if (kctl->private_data) { 2612f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 2613f0b5e634SDaniel Mack num_ins = cval->max; 261452c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 2615f0b5e634SDaniel Mack kctl->private_data = NULL; 2616f0b5e634SDaniel Mack } 2617f0b5e634SDaniel Mack if (kctl->private_value) { 2618f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 2619f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 2620f0b5e634SDaniel Mack kfree(itemlist[i]); 2621f0b5e634SDaniel Mack kfree(itemlist); 2622f0b5e634SDaniel Mack kctl->private_value = 0; 2623f0b5e634SDaniel Mack } 2624f0b5e634SDaniel Mack } 2625f0b5e634SDaniel Mack 2626f0b5e634SDaniel Mack /* 2627f0b5e634SDaniel Mack * parse a selector unit 2628f0b5e634SDaniel Mack */ 26296bc170e4SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, 26306bc170e4SDaniel Mack void *raw_desc) 2631f0b5e634SDaniel Mack { 263299fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 2633f0b5e634SDaniel Mack unsigned int i, nameid, len; 2634f0b5e634SDaniel Mack int err; 2635f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2636f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 2637f0b5e634SDaniel Mack const struct usbmix_name_map *map; 2638f0b5e634SDaniel Mack char **namelist; 2639f0b5e634SDaniel Mack 2640f658f17bSTakashi Iwai if (desc->bLength < 5 || !desc->bNrInPins || 2641f658f17bSTakashi Iwai desc->bLength < 5 + desc->bNrInPins) { 26420ba41d91STakashi Iwai usb_audio_err(state->chip, 26430ba41d91STakashi Iwai "invalid SELECTOR UNIT descriptor %d\n", unitid); 2644f0b5e634SDaniel Mack return -EINVAL; 2645f0b5e634SDaniel Mack } 2646f0b5e634SDaniel Mack 264799fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2648f25ecf8fSTakashi Iwai err = parse_audio_unit(state, desc->baSourceID[i]); 2649f25ecf8fSTakashi Iwai if (err < 0) 2650f0b5e634SDaniel Mack return err; 2651f0b5e634SDaniel Mack } 2652f0b5e634SDaniel Mack 265399fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 2654f0b5e634SDaniel Mack return 0; 2655f0b5e634SDaniel Mack 265617156f23SRuslan Bilovol map = find_map(state->map, unitid, 0); 2657f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 2658f0b5e634SDaniel Mack return 0; 2659f0b5e634SDaniel Mack 2660f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 2661a860d95fSDaniel Mack if (!cval) 2662f0b5e634SDaniel Mack return -ENOMEM; 26633360b84bSTakashi Iwai snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); 2664f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 2665f0b5e634SDaniel Mack cval->channels = 1; 2666f0b5e634SDaniel Mack cval->min = 1; 266799fc8645SDaniel Mack cval->max = desc->bNrInPins; 2668f0b5e634SDaniel Mack cval->res = 1; 2669f0b5e634SDaniel Mack cval->initialized = 1; 2670f0b5e634SDaniel Mack 2671c77e1ef1SJorge Sanjuan switch (state->mixer->protocol) { 2672c77e1ef1SJorge Sanjuan case UAC_VERSION_1: 2673c77e1ef1SJorge Sanjuan default: 267409414207SDaniel Mack cval->control = 0; 2675c77e1ef1SJorge Sanjuan break; 2676c77e1ef1SJorge Sanjuan case UAC_VERSION_2: 2677c77e1ef1SJorge Sanjuan case UAC_VERSION_3: 2678c77e1ef1SJorge Sanjuan if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || 2679c77e1ef1SJorge Sanjuan desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) 2680c77e1ef1SJorge Sanjuan cval->control = UAC2_CX_CLOCK_SELECTOR; 2681c77e1ef1SJorge Sanjuan else /* UAC2/3_SELECTOR_UNIT */ 2682c77e1ef1SJorge Sanjuan cval->control = UAC2_SU_SELECTOR; 2683c77e1ef1SJorge Sanjuan break; 2684c77e1ef1SJorge Sanjuan } 268509414207SDaniel Mack 268652c3e317STakashi Iwai namelist = kcalloc(desc->bNrInPins, sizeof(char *), GFP_KERNEL); 2687f0b5e634SDaniel Mack if (!namelist) { 268852c3e317STakashi Iwai err = -ENOMEM; 268952c3e317STakashi Iwai goto error_cval; 2690f0b5e634SDaniel Mack } 2691f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 269299fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 2693f0b5e634SDaniel Mack struct usb_audio_term iterm; 2694f0b5e634SDaniel Mack len = 0; 2695f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 2696f0b5e634SDaniel Mack if (!namelist[i]) { 269752c3e317STakashi Iwai err = -ENOMEM; 269852c3e317STakashi Iwai goto error_name; 2699f0b5e634SDaniel Mack } 2700f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 2701f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 270299fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 2703eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, &iterm, namelist[i], 2704eccfc1b8SRuslan Bilovol MAX_ITEM_NAME_LEN, 0); 2705f0b5e634SDaniel Mack if (! len) 2706af831eefSMasanari Iida sprintf(namelist[i], "Input %u", i); 2707f0b5e634SDaniel Mack } 2708f0b5e634SDaniel Mack 2709f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 2710f0b5e634SDaniel Mack if (! kctl) { 27110ba41d91STakashi Iwai usb_audio_err(state->chip, "cannot malloc kcontrol\n"); 271252c3e317STakashi Iwai err = -ENOMEM; 271352c3e317STakashi Iwai goto error_name; 2714f0b5e634SDaniel Mack return -ENOMEM; 2715f0b5e634SDaniel Mack } 2716f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 2717f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 2718f0b5e634SDaniel Mack 27195a15f289STakashi Iwai /* check the static mapping table at first */ 2720f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 27215a15f289STakashi Iwai if (!len) { 27225a15f289STakashi Iwai /* no mapping ? */ 2723c77e1ef1SJorge Sanjuan switch (state->mixer->protocol) { 2724c77e1ef1SJorge Sanjuan case UAC_VERSION_1: 2725c77e1ef1SJorge Sanjuan case UAC_VERSION_2: 2726c77e1ef1SJorge Sanjuan default: 27275a15f289STakashi Iwai /* if iSelector is given, use it */ 27285a15f289STakashi Iwai nameid = uac_selector_unit_iSelector(desc); 27295a15f289STakashi Iwai if (nameid) 2730c77e1ef1SJorge Sanjuan len = snd_usb_copy_string_desc(state->chip, 2731c77e1ef1SJorge Sanjuan nameid, kctl->id.name, 27326bc170e4SDaniel Mack sizeof(kctl->id.name)); 2733c77e1ef1SJorge Sanjuan break; 2734c77e1ef1SJorge Sanjuan case UAC_VERSION_3: 2735c77e1ef1SJorge Sanjuan /* TODO: Class-Specific strings not yet supported */ 2736c77e1ef1SJorge Sanjuan break; 2737c77e1ef1SJorge Sanjuan } 2738c77e1ef1SJorge Sanjuan 27395a15f289STakashi Iwai /* ... or pick up the terminal name at next */ 27405a15f289STakashi Iwai if (!len) 2741eccfc1b8SRuslan Bilovol len = get_term_name(state->chip, &state->oterm, 2742f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 27435a15f289STakashi Iwai /* ... or use the fixed string "USB" as the last resort */ 2744f0b5e634SDaniel Mack if (!len) 2745f0b5e634SDaniel Mack strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 2746f0b5e634SDaniel Mack 27475a15f289STakashi Iwai /* and add the proper suffix */ 2748c77e1ef1SJorge Sanjuan if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || 2749c77e1ef1SJorge Sanjuan desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) 275009414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 275109414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 2752f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 2753f0b5e634SDaniel Mack else 2754f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 2755f0b5e634SDaniel Mack } 2756f0b5e634SDaniel Mack 27570ba41d91STakashi Iwai usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", 27583360b84bSTakashi Iwai cval->head.id, kctl->id.name, desc->bNrInPins); 27593360b84bSTakashi Iwai return snd_usb_mixer_add_control(&cval->head, kctl); 276052c3e317STakashi Iwai 276152c3e317STakashi Iwai error_name: 276252c3e317STakashi Iwai for (i = 0; i < desc->bNrInPins; i++) 276352c3e317STakashi Iwai kfree(namelist[i]); 276452c3e317STakashi Iwai kfree(namelist); 276552c3e317STakashi Iwai error_cval: 276652c3e317STakashi Iwai usb_mixer_elem_info_free(cval); 276752c3e317STakashi Iwai return err; 2768f0b5e634SDaniel Mack } 2769f0b5e634SDaniel Mack 2770f0b5e634SDaniel Mack /* 2771f0b5e634SDaniel Mack * parse an audio unit recursively 2772f0b5e634SDaniel Mack */ 2773f0b5e634SDaniel Mack 2774f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 2775f0b5e634SDaniel Mack { 2776f0b5e634SDaniel Mack unsigned char *p1; 27779a2fe9b8SRuslan Bilovol int protocol = state->mixer->protocol; 2778f0b5e634SDaniel Mack 2779f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 2780f0b5e634SDaniel Mack return 0; /* the unit already visited */ 2781f0b5e634SDaniel Mack 2782f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 2783f0b5e634SDaniel Mack if (!p1) { 27840ba41d91STakashi Iwai usb_audio_err(state->chip, "unit %d not found!\n", unitid); 2785f0b5e634SDaniel Mack return -EINVAL; 2786f0b5e634SDaniel Mack } 2787f0b5e634SDaniel Mack 278857f87706STakashi Iwai if (!snd_usb_validate_audio_desc(p1, protocol)) { 278957f87706STakashi Iwai usb_audio_dbg(state->chip, "invalid unit %d\n", unitid); 279057f87706STakashi Iwai return 0; /* skip invalid unit */ 279157f87706STakashi Iwai } 279257f87706STakashi Iwai 279368e9fde2STakashi Iwai #define PTYPE(a, b) ((a) << 8 | (b)) 279468e9fde2STakashi Iwai switch (PTYPE(protocol, p1[2])) { 279568e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): 279668e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): 279768e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): 27985a222e84SAndrew Chant return parse_audio_input_terminal(state, unitid, p1); 279968e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): 280068e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): 280168e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): 2802f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 280368e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): 280468e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): 2805cddaafb9SDaniel Mack return parse_clock_source_unit(state, unitid, p1); 280668e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): 280768e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): 280868e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): 280968e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): 281068e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): 2811f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 281268e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): 281368e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): 281468e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): 2815f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 281668e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): 281768e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): 281868e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): 2819f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 282068e9fde2STakashi Iwai case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): 282168e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): 282268e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): 282368e9fde2STakashi Iwai return parse_audio_extension_unit(state, unitid, p1); 282468e9fde2STakashi Iwai case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): 282568e9fde2STakashi Iwai case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): 282623caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 2827f0b5e634SDaniel Mack default: 28280ba41d91STakashi Iwai usb_audio_err(state->chip, 282968e9fde2STakashi Iwai "unit %u: unexpected type 0x%02x\n", 283068e9fde2STakashi Iwai unitid, p1[2]); 2831f0b5e634SDaniel Mack return -EINVAL; 2832f0b5e634SDaniel Mack } 2833f0b5e634SDaniel Mack } 2834f0b5e634SDaniel Mack 2835f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 2836f0b5e634SDaniel Mack { 2837124751d5STakashi Iwai /* kill pending URBs */ 2838124751d5STakashi Iwai snd_usb_mixer_disconnect(mixer); 2839124751d5STakashi Iwai 2840f0b5e634SDaniel Mack kfree(mixer->id_elems); 2841f0b5e634SDaniel Mack if (mixer->urb) { 2842f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 2843f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 2844f0b5e634SDaniel Mack } 2845f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 2846f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 2847f0b5e634SDaniel Mack kfree(mixer); 2848f0b5e634SDaniel Mack } 2849f0b5e634SDaniel Mack 2850f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 2851f0b5e634SDaniel Mack { 2852f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 2853f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2854f0b5e634SDaniel Mack return 0; 2855f0b5e634SDaniel Mack } 2856f0b5e634SDaniel Mack 285717156f23SRuslan Bilovol /* UAC3 predefined channels configuration */ 285817156f23SRuslan Bilovol struct uac3_badd_profile { 285917156f23SRuslan Bilovol int subclass; 286017156f23SRuslan Bilovol const char *name; 286117156f23SRuslan Bilovol int c_chmask; /* capture channels mask */ 286217156f23SRuslan Bilovol int p_chmask; /* playback channels mask */ 286317156f23SRuslan Bilovol int st_chmask; /* side tone mixing channel mask */ 286417156f23SRuslan Bilovol }; 286517156f23SRuslan Bilovol 286617156f23SRuslan Bilovol static struct uac3_badd_profile uac3_badd_profiles[] = { 286717156f23SRuslan Bilovol { 286817156f23SRuslan Bilovol /* 286917156f23SRuslan Bilovol * BAIF, BAOF or combination of both 287017156f23SRuslan Bilovol * IN: Mono or Stereo cfg, Mono alt possible 287117156f23SRuslan Bilovol * OUT: Mono or Stereo cfg, Mono alt possible 287217156f23SRuslan Bilovol */ 287317156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO, 287417156f23SRuslan Bilovol .name = "GENERIC IO", 287517156f23SRuslan Bilovol .c_chmask = -1, /* dynamic channels */ 287617156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 287717156f23SRuslan Bilovol }, 287817156f23SRuslan Bilovol { 287917156f23SRuslan Bilovol /* BAOF; Stereo only cfg, Mono alt possible */ 288017156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE, 288117156f23SRuslan Bilovol .name = "HEADPHONE", 288217156f23SRuslan Bilovol .p_chmask = 3, 288317156f23SRuslan Bilovol }, 288417156f23SRuslan Bilovol { 288517156f23SRuslan Bilovol /* BAOF; Mono or Stereo cfg, Mono alt possible */ 288617156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER, 288717156f23SRuslan Bilovol .name = "SPEAKER", 288817156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 288917156f23SRuslan Bilovol }, 289017156f23SRuslan Bilovol { 289117156f23SRuslan Bilovol /* BAIF; Mono or Stereo cfg, Mono alt possible */ 289217156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE, 289317156f23SRuslan Bilovol .name = "MICROPHONE", 289417156f23SRuslan Bilovol .c_chmask = -1, /* dynamic channels */ 289517156f23SRuslan Bilovol }, 289617156f23SRuslan Bilovol { 289717156f23SRuslan Bilovol /* 289817156f23SRuslan Bilovol * BAIOF topology 289917156f23SRuslan Bilovol * IN: Mono only 290017156f23SRuslan Bilovol * OUT: Mono or Stereo cfg, Mono alt possible 290117156f23SRuslan Bilovol */ 290217156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET, 290317156f23SRuslan Bilovol .name = "HEADSET", 290417156f23SRuslan Bilovol .c_chmask = 1, 290517156f23SRuslan Bilovol .p_chmask = -1, /* dynamic channels */ 290617156f23SRuslan Bilovol .st_chmask = 1, 290717156f23SRuslan Bilovol }, 290817156f23SRuslan Bilovol { 290917156f23SRuslan Bilovol /* BAIOF; IN: Mono only; OUT: Stereo only, Mono alt possible */ 291017156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER, 291117156f23SRuslan Bilovol .name = "HEADSET ADAPTER", 291217156f23SRuslan Bilovol .c_chmask = 1, 291317156f23SRuslan Bilovol .p_chmask = 3, 291417156f23SRuslan Bilovol .st_chmask = 1, 291517156f23SRuslan Bilovol }, 291617156f23SRuslan Bilovol { 291717156f23SRuslan Bilovol /* BAIF + BAOF; IN: Mono only; OUT: Mono only */ 291817156f23SRuslan Bilovol .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, 291917156f23SRuslan Bilovol .name = "SPEAKERPHONE", 292017156f23SRuslan Bilovol .c_chmask = 1, 292117156f23SRuslan Bilovol .p_chmask = 1, 292217156f23SRuslan Bilovol }, 292317156f23SRuslan Bilovol { 0 } /* terminator */ 292417156f23SRuslan Bilovol }; 292517156f23SRuslan Bilovol 292617156f23SRuslan Bilovol static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer, 292717156f23SRuslan Bilovol struct uac3_badd_profile *f, 292817156f23SRuslan Bilovol int c_chmask, int p_chmask) 292917156f23SRuslan Bilovol { 293017156f23SRuslan Bilovol /* 293117156f23SRuslan Bilovol * If both playback/capture channels are dynamic, make sure 293217156f23SRuslan Bilovol * at least one channel is present 293317156f23SRuslan Bilovol */ 293417156f23SRuslan Bilovol if (f->c_chmask < 0 && f->p_chmask < 0) { 293517156f23SRuslan Bilovol if (!c_chmask && !p_chmask) { 293617156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s: no channels?", 293717156f23SRuslan Bilovol f->name); 293817156f23SRuslan Bilovol return false; 293917156f23SRuslan Bilovol } 294017156f23SRuslan Bilovol return true; 294117156f23SRuslan Bilovol } 294217156f23SRuslan Bilovol 294317156f23SRuslan Bilovol if ((f->c_chmask < 0 && !c_chmask) || 294417156f23SRuslan Bilovol (f->c_chmask >= 0 && f->c_chmask != c_chmask)) { 294517156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch", 294617156f23SRuslan Bilovol f->name); 294717156f23SRuslan Bilovol return false; 294817156f23SRuslan Bilovol } 294917156f23SRuslan Bilovol if ((f->p_chmask < 0 && !p_chmask) || 295017156f23SRuslan Bilovol (f->p_chmask >= 0 && f->p_chmask != p_chmask)) { 295117156f23SRuslan Bilovol usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch", 295217156f23SRuslan Bilovol f->name); 295317156f23SRuslan Bilovol return false; 295417156f23SRuslan Bilovol } 295517156f23SRuslan Bilovol return true; 295617156f23SRuslan Bilovol } 295717156f23SRuslan Bilovol 295817156f23SRuslan Bilovol /* 295917156f23SRuslan Bilovol * create mixer controls for UAC3 BADD profiles 296017156f23SRuslan Bilovol * 296117156f23SRuslan Bilovol * UAC3 BADD device doesn't contain CS descriptors thus we will guess everything 296217156f23SRuslan Bilovol * 296317156f23SRuslan Bilovol * BADD device may contain Mixer Unit, which doesn't have any controls, skip it 296417156f23SRuslan Bilovol */ 296517156f23SRuslan Bilovol static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer, 296617156f23SRuslan Bilovol int ctrlif) 296717156f23SRuslan Bilovol { 296817156f23SRuslan Bilovol struct usb_device *dev = mixer->chip->dev; 296917156f23SRuslan Bilovol struct usb_interface_assoc_descriptor *assoc; 297017156f23SRuslan Bilovol int badd_profile = mixer->chip->badd_profile; 297117156f23SRuslan Bilovol struct uac3_badd_profile *f; 297217156f23SRuslan Bilovol const struct usbmix_ctl_map *map; 297317156f23SRuslan Bilovol int p_chmask = 0, c_chmask = 0, st_chmask = 0; 297417156f23SRuslan Bilovol int i; 297517156f23SRuslan Bilovol 297617156f23SRuslan Bilovol assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc; 297717156f23SRuslan Bilovol 297817156f23SRuslan Bilovol /* Detect BADD capture/playback channels from AS EP descriptors */ 297917156f23SRuslan Bilovol for (i = 0; i < assoc->bInterfaceCount; i++) { 298017156f23SRuslan Bilovol int intf = assoc->bFirstInterface + i; 298117156f23SRuslan Bilovol 298217156f23SRuslan Bilovol struct usb_interface *iface; 298317156f23SRuslan Bilovol struct usb_host_interface *alts; 298417156f23SRuslan Bilovol struct usb_interface_descriptor *altsd; 298517156f23SRuslan Bilovol unsigned int maxpacksize; 298617156f23SRuslan Bilovol char dir_in; 298717156f23SRuslan Bilovol int chmask, num; 298817156f23SRuslan Bilovol 298917156f23SRuslan Bilovol if (intf == ctrlif) 299017156f23SRuslan Bilovol continue; 299117156f23SRuslan Bilovol 299217156f23SRuslan Bilovol iface = usb_ifnum_to_if(dev, intf); 299317156f23SRuslan Bilovol num = iface->num_altsetting; 299417156f23SRuslan Bilovol 299517156f23SRuslan Bilovol if (num < 2) 299617156f23SRuslan Bilovol return -EINVAL; 299717156f23SRuslan Bilovol 299817156f23SRuslan Bilovol /* 299917156f23SRuslan Bilovol * The number of Channels in an AudioStreaming interface 300017156f23SRuslan Bilovol * and the audio sample bit resolution (16 bits or 24 300117156f23SRuslan Bilovol * bits) can be derived from the wMaxPacketSize field in 300217156f23SRuslan Bilovol * the Standard AS Audio Data Endpoint descriptor in 300317156f23SRuslan Bilovol * Alternate Setting 1 300417156f23SRuslan Bilovol */ 300517156f23SRuslan Bilovol alts = &iface->altsetting[1]; 300617156f23SRuslan Bilovol altsd = get_iface_desc(alts); 300717156f23SRuslan Bilovol 300817156f23SRuslan Bilovol if (altsd->bNumEndpoints < 1) 300917156f23SRuslan Bilovol return -EINVAL; 301017156f23SRuslan Bilovol 301117156f23SRuslan Bilovol /* check direction */ 301217156f23SRuslan Bilovol dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); 301317156f23SRuslan Bilovol maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); 301417156f23SRuslan Bilovol 301517156f23SRuslan Bilovol switch (maxpacksize) { 301617156f23SRuslan Bilovol default: 301717156f23SRuslan Bilovol usb_audio_err(mixer->chip, 301817156f23SRuslan Bilovol "incorrect wMaxPacketSize 0x%x for BADD profile\n", 301917156f23SRuslan Bilovol maxpacksize); 302017156f23SRuslan Bilovol return -EINVAL; 302117156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: 302217156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: 302317156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: 302417156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: 302517156f23SRuslan Bilovol chmask = 1; 302617156f23SRuslan Bilovol break; 302717156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: 302817156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: 302917156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: 303017156f23SRuslan Bilovol case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: 303117156f23SRuslan Bilovol chmask = 3; 303217156f23SRuslan Bilovol break; 303317156f23SRuslan Bilovol } 303417156f23SRuslan Bilovol 303517156f23SRuslan Bilovol if (dir_in) 303617156f23SRuslan Bilovol c_chmask = chmask; 303717156f23SRuslan Bilovol else 303817156f23SRuslan Bilovol p_chmask = chmask; 303917156f23SRuslan Bilovol } 304017156f23SRuslan Bilovol 304117156f23SRuslan Bilovol usb_audio_dbg(mixer->chip, 304217156f23SRuslan Bilovol "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n", 304317156f23SRuslan Bilovol badd_profile, c_chmask, p_chmask); 304417156f23SRuslan Bilovol 304517156f23SRuslan Bilovol /* check the mapping table */ 304617156f23SRuslan Bilovol for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) { 304717156f23SRuslan Bilovol if (map->id == badd_profile) 304817156f23SRuslan Bilovol break; 304917156f23SRuslan Bilovol } 305017156f23SRuslan Bilovol 305117156f23SRuslan Bilovol if (!map->id) 305217156f23SRuslan Bilovol return -EINVAL; 305317156f23SRuslan Bilovol 305417156f23SRuslan Bilovol for (f = uac3_badd_profiles; f->name; f++) { 305517156f23SRuslan Bilovol if (badd_profile == f->subclass) 305617156f23SRuslan Bilovol break; 305717156f23SRuslan Bilovol } 305817156f23SRuslan Bilovol if (!f->name) 305917156f23SRuslan Bilovol return -EINVAL; 306017156f23SRuslan Bilovol if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask)) 306117156f23SRuslan Bilovol return -EINVAL; 306217156f23SRuslan Bilovol st_chmask = f->st_chmask; 306317156f23SRuslan Bilovol 306417156f23SRuslan Bilovol /* Playback */ 306517156f23SRuslan Bilovol if (p_chmask) { 306617156f23SRuslan Bilovol /* Master channel, always writable */ 306717156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 306817156f23SRuslan Bilovol UAC3_BADD_FU_ID2, map->map); 306917156f23SRuslan Bilovol /* Mono/Stereo volume channels, always writable */ 307017156f23SRuslan Bilovol build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME, 307117156f23SRuslan Bilovol UAC3_BADD_FU_ID2, map->map); 307217156f23SRuslan Bilovol } 307317156f23SRuslan Bilovol 307417156f23SRuslan Bilovol /* Capture */ 307517156f23SRuslan Bilovol if (c_chmask) { 307617156f23SRuslan Bilovol /* Master channel, always writable */ 307717156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 307817156f23SRuslan Bilovol UAC3_BADD_FU_ID5, map->map); 307917156f23SRuslan Bilovol /* Mono/Stereo volume channels, always writable */ 308017156f23SRuslan Bilovol build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME, 308117156f23SRuslan Bilovol UAC3_BADD_FU_ID5, map->map); 308217156f23SRuslan Bilovol } 308317156f23SRuslan Bilovol 308417156f23SRuslan Bilovol /* Side tone-mixing */ 308517156f23SRuslan Bilovol if (st_chmask) { 308617156f23SRuslan Bilovol /* Master channel, always writable */ 308717156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, 308817156f23SRuslan Bilovol UAC3_BADD_FU_ID7, map->map); 308917156f23SRuslan Bilovol /* Mono volume channel, always writable */ 309017156f23SRuslan Bilovol build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME, 309117156f23SRuslan Bilovol UAC3_BADD_FU_ID7, map->map); 309217156f23SRuslan Bilovol } 309317156f23SRuslan Bilovol 30943528cd8fSJorge Sanjuan /* Insertion Control */ 30953528cd8fSJorge Sanjuan if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) { 30963528cd8fSJorge Sanjuan struct usb_audio_term iterm, oterm; 30973528cd8fSJorge Sanjuan 30983528cd8fSJorge Sanjuan /* Input Term - Insertion control */ 30993528cd8fSJorge Sanjuan memset(&iterm, 0, sizeof(iterm)); 31003528cd8fSJorge Sanjuan iterm.id = UAC3_BADD_IT_ID4; 31013528cd8fSJorge Sanjuan iterm.type = UAC_BIDIR_TERMINAL_HEADSET; 31023528cd8fSJorge Sanjuan build_connector_control(mixer, &iterm, true); 31033528cd8fSJorge Sanjuan 31043528cd8fSJorge Sanjuan /* Output Term - Insertion control */ 31053528cd8fSJorge Sanjuan memset(&oterm, 0, sizeof(oterm)); 31063528cd8fSJorge Sanjuan oterm.id = UAC3_BADD_OT_ID3; 31073528cd8fSJorge Sanjuan oterm.type = UAC_BIDIR_TERMINAL_HEADSET; 31083528cd8fSJorge Sanjuan build_connector_control(mixer, &oterm, false); 31093528cd8fSJorge Sanjuan } 31103528cd8fSJorge Sanjuan 311117156f23SRuslan Bilovol return 0; 311217156f23SRuslan Bilovol } 311317156f23SRuslan Bilovol 3114f0b5e634SDaniel Mack /* 3115f0b5e634SDaniel Mack * create mixer controls 3116f0b5e634SDaniel Mack * 3117f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 3118f0b5e634SDaniel Mack */ 3119f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 3120f0b5e634SDaniel Mack { 3121f0b5e634SDaniel Mack struct mixer_build state; 3122f0b5e634SDaniel Mack int err; 3123f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 312423caaf19SDaniel Mack void *p; 3125f0b5e634SDaniel Mack 3126f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 3127f0b5e634SDaniel Mack state.chip = mixer->chip; 3128f0b5e634SDaniel Mack state.mixer = mixer; 31291faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 31301faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 3131f0b5e634SDaniel Mack 3132f0b5e634SDaniel Mack /* check the mapping table */ 3133f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 3134f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 3135f0b5e634SDaniel Mack state.map = map->map; 3136f0b5e634SDaniel Mack state.selector_map = map->selector_map; 3137f0b5e634SDaniel Mack mixer->ignore_ctl_error = map->ignore_ctl_error; 3138f0b5e634SDaniel Mack break; 3139f0b5e634SDaniel Mack } 3140f0b5e634SDaniel Mack } 3141f0b5e634SDaniel Mack 314223caaf19SDaniel Mack p = NULL; 31436bc170e4SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, 31446bc170e4SDaniel Mack mixer->hostif->extralen, 31451faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 314657f87706STakashi Iwai if (!snd_usb_validate_audio_desc(p, mixer->protocol)) 314757f87706STakashi Iwai continue; /* skip invalid descriptor */ 314857f87706STakashi Iwai 314923caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 315069da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 315123caaf19SDaniel Mack 315223caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 315323caaf19SDaniel Mack continue; /* invalid descriptor? */ 31546bc170e4SDaniel Mack /* mark terminal ID as visited */ 31556bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 315623caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 315723caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 315823caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 315923caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 316083ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 316123caaf19SDaniel Mack return err; 31629a2fe9b8SRuslan Bilovol } else if (mixer->protocol == UAC_VERSION_2) { 316323caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 316423caaf19SDaniel Mack 316523caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 3166f0b5e634SDaniel Mack continue; /* invalid descriptor? */ 31676bc170e4SDaniel Mack /* mark terminal ID as visited */ 31686bc170e4SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); 3169f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 3170f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 3171f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 3172f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 317383ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 3174f0b5e634SDaniel Mack return err; 317509414207SDaniel Mack 31766bc170e4SDaniel Mack /* 31776bc170e4SDaniel Mack * For UAC2, use the same approach to also add the 31786bc170e4SDaniel Mack * clock selectors 31796bc170e4SDaniel Mack */ 318009414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 318183ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 318209414207SDaniel Mack return err; 31835a222e84SAndrew Chant 31842b54f785STakashi Iwai if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls), 31855a222e84SAndrew Chant UAC2_TE_CONNECTOR)) { 3186167e1fb1SJorge Sanjuan build_connector_control(state.mixer, &state.oterm, 31875a222e84SAndrew Chant false); 31885a222e84SAndrew Chant } 31899a2fe9b8SRuslan Bilovol } else { /* UAC_VERSION_3 */ 31909a2fe9b8SRuslan Bilovol struct uac3_output_terminal_descriptor *desc = p; 31919a2fe9b8SRuslan Bilovol 31929a2fe9b8SRuslan Bilovol if (desc->bLength < sizeof(*desc)) 31939a2fe9b8SRuslan Bilovol continue; /* invalid descriptor? */ 31949a2fe9b8SRuslan Bilovol /* mark terminal ID as visited */ 31959a2fe9b8SRuslan Bilovol set_bit(desc->bTerminalID, state.unitbitmap); 31969a2fe9b8SRuslan Bilovol state.oterm.id = desc->bTerminalID; 31979a2fe9b8SRuslan Bilovol state.oterm.type = le16_to_cpu(desc->wTerminalType); 31989a2fe9b8SRuslan Bilovol state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr); 31999a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bSourceID); 32009a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 32019a2fe9b8SRuslan Bilovol return err; 32029a2fe9b8SRuslan Bilovol 32039a2fe9b8SRuslan Bilovol /* 32049a2fe9b8SRuslan Bilovol * For UAC3, use the same approach to also add the 32059a2fe9b8SRuslan Bilovol * clock selectors 32069a2fe9b8SRuslan Bilovol */ 32079a2fe9b8SRuslan Bilovol err = parse_audio_unit(&state, desc->bCSourceID); 32089a2fe9b8SRuslan Bilovol if (err < 0 && err != -EINVAL) 32099a2fe9b8SRuslan Bilovol return err; 32101d38f5d8SJorge Sanjuan 32111d38f5d8SJorge Sanjuan if (uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls), 32121d38f5d8SJorge Sanjuan UAC3_TE_INSERTION)) { 3213167e1fb1SJorge Sanjuan build_connector_control(state.mixer, &state.oterm, 32141d38f5d8SJorge Sanjuan false); 32151d38f5d8SJorge Sanjuan } 3216f0b5e634SDaniel Mack } 321723caaf19SDaniel Mack } 321823caaf19SDaniel Mack 3219f0b5e634SDaniel Mack return 0; 3220f0b5e634SDaniel Mack } 3221f0b5e634SDaniel Mack 3222f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 3223f0b5e634SDaniel Mack { 32243360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3225f0b5e634SDaniel Mack 32268c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 3227b2500b58SJulian Scheel struct usb_mixer_elem_info *info = 32288c558076STakashi Iwai mixer_elem_list_to_info(list); 3229b2500b58SJulian Scheel /* invalidate cache, so the value is read from the device */ 3230b2500b58SJulian Scheel info->cached = 0; 3231f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 32323360b84bSTakashi Iwai &list->kctl->id); 3233f0b5e634SDaniel Mack } 3234b2500b58SJulian Scheel } 3235f0b5e634SDaniel Mack 3236f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 32373360b84bSTakashi Iwai struct usb_mixer_elem_list *list) 3238f0b5e634SDaniel Mack { 32398c558076STakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 3240f0b5e634SDaniel Mack static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 3241f0b5e634SDaniel Mack "S8", "U8", "S16", "U16"}; 3242f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 32433360b84bSTakashi Iwai "channels=%i, type=\"%s\"\n", cval->head.id, 3244f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 3245f0b5e634SDaniel Mack val_types[cval->val_type]); 3246f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 3247f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 3248f0b5e634SDaniel Mack } 3249f0b5e634SDaniel Mack 3250f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 3251f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 3252f0b5e634SDaniel Mack { 3253f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 3254f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 32553360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3256f0b5e634SDaniel Mack int unitid; 3257f0b5e634SDaniel Mack 3258f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 3259f0b5e634SDaniel Mack snd_iprintf(buffer, 3260f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 32613d8d4dcfSDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 3262f0b5e634SDaniel Mack mixer->ignore_ctl_error); 3263f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 3264f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 32658c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 32663360b84bSTakashi Iwai snd_iprintf(buffer, " Unit: %i\n", list->id); 32673360b84bSTakashi Iwai if (list->kctl) 32683360b84bSTakashi Iwai snd_iprintf(buffer, 32693360b84bSTakashi Iwai " Control: name=\"%s\", index=%i\n", 32703360b84bSTakashi Iwai list->kctl->id.name, 32713360b84bSTakashi Iwai list->kctl->id.index); 32723360b84bSTakashi Iwai if (list->dump) 32733360b84bSTakashi Iwai list->dump(buffer, list); 32743360b84bSTakashi Iwai } 3275f0b5e634SDaniel Mack } 3276f0b5e634SDaniel Mack } 3277f0b5e634SDaniel Mack } 3278f0b5e634SDaniel Mack 3279e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 3280e213e9cfSDaniel Mack int attribute, int value, int index) 3281e213e9cfSDaniel Mack { 32823360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3283e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 3284e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 3285e213e9cfSDaniel Mack __u8 channel = value & 0xff; 3286191227d9SDaniel Mack unsigned int count = 0; 3287e213e9cfSDaniel Mack 3288e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 32890ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 32900ba41d91STakashi Iwai "%s(): bogus channel number %d\n", 3291e213e9cfSDaniel Mack __func__, channel); 3292e213e9cfSDaniel Mack return; 3293e213e9cfSDaniel Mack } 3294e213e9cfSDaniel Mack 32958c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) 3296191227d9SDaniel Mack count++; 3297191227d9SDaniel Mack 3298191227d9SDaniel Mack if (count == 0) 3299191227d9SDaniel Mack return; 3300191227d9SDaniel Mack 33018c558076STakashi Iwai for_each_mixer_elem(list, mixer, unitid) { 33023360b84bSTakashi Iwai struct usb_mixer_elem_info *info; 33033360b84bSTakashi Iwai 33043360b84bSTakashi Iwai if (!list->kctl) 33053360b84bSTakashi Iwai continue; 33063360b84bSTakashi Iwai 33078c558076STakashi Iwai info = mixer_elem_list_to_info(list); 3308191227d9SDaniel Mack if (count > 1 && info->control != control) 3309e213e9cfSDaniel Mack continue; 3310e213e9cfSDaniel Mack 3311e213e9cfSDaniel Mack switch (attribute) { 3312e213e9cfSDaniel Mack case UAC2_CS_CUR: 3313e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 3314e213e9cfSDaniel Mack if (channel) 3315e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 3316e213e9cfSDaniel Mack else /* master channel */ 3317e213e9cfSDaniel Mack info->cached = 0; 3318e213e9cfSDaniel Mack 3319e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 33203360b84bSTakashi Iwai &info->head.kctl->id); 3321e213e9cfSDaniel Mack break; 3322e213e9cfSDaniel Mack 3323e213e9cfSDaniel Mack case UAC2_CS_RANGE: 3324e213e9cfSDaniel Mack /* TODO */ 3325e213e9cfSDaniel Mack break; 3326e213e9cfSDaniel Mack 3327e213e9cfSDaniel Mack case UAC2_CS_MEM: 3328e213e9cfSDaniel Mack /* TODO */ 3329e213e9cfSDaniel Mack break; 3330e213e9cfSDaniel Mack 3331e213e9cfSDaniel Mack default: 33320ba41d91STakashi Iwai usb_audio_dbg(mixer->chip, 33330ba41d91STakashi Iwai "unknown attribute %d in interrupt\n", 3334e213e9cfSDaniel Mack attribute); 3335e213e9cfSDaniel Mack break; 3336e213e9cfSDaniel Mack } /* switch */ 3337e213e9cfSDaniel Mack } 3338e213e9cfSDaniel Mack } 3339e213e9cfSDaniel Mack 3340e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 3341f0b5e634SDaniel Mack { 3342f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 3343e213e9cfSDaniel Mack int len = urb->actual_length; 3344edf7de31SOliver Neukum int ustatus = urb->status; 3345f0b5e634SDaniel Mack 3346edf7de31SOliver Neukum if (ustatus != 0) 3347e213e9cfSDaniel Mack goto requeue; 3348f0b5e634SDaniel Mack 3349e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 3350e213e9cfSDaniel Mack struct uac1_status_word *status; 3351e213e9cfSDaniel Mack 3352e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 3353e213e9cfSDaniel Mack len >= sizeof(*status); 3354e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 33550ba41d91STakashi Iwai dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", 3356e213e9cfSDaniel Mack status->bStatusType, 3357e213e9cfSDaniel Mack status->bOriginator); 3358e213e9cfSDaniel Mack 3359f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 3360e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 3361e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 3362f0b5e634SDaniel Mack continue; 3363e213e9cfSDaniel Mack 3364e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 3365e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 3366f0b5e634SDaniel Mack else 3367e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 3368e213e9cfSDaniel Mack } 3369e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 3370e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 3371e213e9cfSDaniel Mack 3372e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 3373e213e9cfSDaniel Mack len >= sizeof(*msg); 3374e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 3375e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 3376e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 3377e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 3378e213e9cfSDaniel Mack continue; 3379e213e9cfSDaniel Mack 3380e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 3381e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 3382e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 3383f0b5e634SDaniel Mack } 3384f0b5e634SDaniel Mack } 3385e213e9cfSDaniel Mack 3386e213e9cfSDaniel Mack requeue: 33876bc170e4SDaniel Mack if (ustatus != -ENOENT && 33886bc170e4SDaniel Mack ustatus != -ECONNRESET && 33896bc170e4SDaniel Mack ustatus != -ESHUTDOWN) { 3390f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 3391f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 3392f0b5e634SDaniel Mack } 3393f0b5e634SDaniel Mack } 3394f0b5e634SDaniel Mack 3395f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 3396f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 3397f0b5e634SDaniel Mack { 3398f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 3399f0b5e634SDaniel Mack void *transfer_buffer; 3400f0b5e634SDaniel Mack int buffer_length; 3401f0b5e634SDaniel Mack unsigned int epnum; 3402f0b5e634SDaniel Mack 3403f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 34041faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 3405f0b5e634SDaniel Mack return 0; 34061faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 3407f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 3408f0b5e634SDaniel Mack return 0; 3409f0b5e634SDaniel Mack 3410f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 3411f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 3412f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 3413f0b5e634SDaniel Mack if (!transfer_buffer) 3414f0b5e634SDaniel Mack return -ENOMEM; 3415f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 3416f0b5e634SDaniel Mack if (!mixer->urb) { 3417f0b5e634SDaniel Mack kfree(transfer_buffer); 3418f0b5e634SDaniel Mack return -ENOMEM; 3419f0b5e634SDaniel Mack } 3420f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 3421f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 3422f0b5e634SDaniel Mack transfer_buffer, buffer_length, 3423e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 3424f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 3425f0b5e634SDaniel Mack return 0; 3426f0b5e634SDaniel Mack } 3427f0b5e634SDaniel Mack 34284120fbedSTakashi Iwai static int keep_iface_ctl_get(struct snd_kcontrol *kcontrol, 34294120fbedSTakashi Iwai struct snd_ctl_elem_value *ucontrol) 34304120fbedSTakashi Iwai { 34314120fbedSTakashi Iwai struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); 34324120fbedSTakashi Iwai 34334120fbedSTakashi Iwai ucontrol->value.integer.value[0] = mixer->chip->keep_iface; 34344120fbedSTakashi Iwai return 0; 34354120fbedSTakashi Iwai } 34364120fbedSTakashi Iwai 34374120fbedSTakashi Iwai static int keep_iface_ctl_put(struct snd_kcontrol *kcontrol, 34384120fbedSTakashi Iwai struct snd_ctl_elem_value *ucontrol) 34394120fbedSTakashi Iwai { 34404120fbedSTakashi Iwai struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); 34414120fbedSTakashi Iwai bool keep_iface = !!ucontrol->value.integer.value[0]; 34424120fbedSTakashi Iwai 34434120fbedSTakashi Iwai if (mixer->chip->keep_iface == keep_iface) 34444120fbedSTakashi Iwai return 0; 34454120fbedSTakashi Iwai mixer->chip->keep_iface = keep_iface; 34464120fbedSTakashi Iwai return 1; 34474120fbedSTakashi Iwai } 34484120fbedSTakashi Iwai 34494120fbedSTakashi Iwai static const struct snd_kcontrol_new keep_iface_ctl = { 34504120fbedSTakashi Iwai .iface = SNDRV_CTL_ELEM_IFACE_CARD, 34514120fbedSTakashi Iwai .name = "Keep Interface", 34524120fbedSTakashi Iwai .info = snd_ctl_boolean_mono_info, 34534120fbedSTakashi Iwai .get = keep_iface_ctl_get, 34544120fbedSTakashi Iwai .put = keep_iface_ctl_put, 34554120fbedSTakashi Iwai }; 34564120fbedSTakashi Iwai 34574120fbedSTakashi Iwai static int create_keep_iface_ctl(struct usb_mixer_interface *mixer) 34584120fbedSTakashi Iwai { 34594120fbedSTakashi Iwai struct snd_kcontrol *kctl = snd_ctl_new1(&keep_iface_ctl, mixer); 34604120fbedSTakashi Iwai 34614120fbedSTakashi Iwai /* need only one control per card */ 34624120fbedSTakashi Iwai if (snd_ctl_find_id(mixer->chip->card, &kctl->id)) { 34634120fbedSTakashi Iwai snd_ctl_free_one(kctl); 34644120fbedSTakashi Iwai return 0; 34654120fbedSTakashi Iwai } 34664120fbedSTakashi Iwai 34674120fbedSTakashi Iwai return snd_ctl_add(mixer->chip->card, kctl); 34684120fbedSTakashi Iwai } 34694120fbedSTakashi Iwai 3470f0b5e634SDaniel Mack int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 3471f0b5e634SDaniel Mack int ignore_error) 3472f0b5e634SDaniel Mack { 3473f0b5e634SDaniel Mack static struct snd_device_ops dev_ops = { 3474f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 3475f0b5e634SDaniel Mack }; 3476f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 347723caaf19SDaniel Mack int err; 3478f0b5e634SDaniel Mack 3479f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 3480f0b5e634SDaniel Mack 3481f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 3482f0b5e634SDaniel Mack if (!mixer) 3483f0b5e634SDaniel Mack return -ENOMEM; 3484f0b5e634SDaniel Mack mixer->chip = chip; 3485f0b5e634SDaniel Mack mixer->ignore_ctl_error = ignore_error; 3486f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 3487f0b5e634SDaniel Mack GFP_KERNEL); 3488f0b5e634SDaniel Mack if (!mixer->id_elems) { 3489f0b5e634SDaniel Mack kfree(mixer); 3490f0b5e634SDaniel Mack return -ENOMEM; 3491f0b5e634SDaniel Mack } 3492f0b5e634SDaniel Mack 34931faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 34941faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 3495a2acad82SClemens Ladisch case UAC_VERSION_1: 3496a2acad82SClemens Ladisch default: 3497a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 3498a2acad82SClemens Ladisch break; 3499a2acad82SClemens Ladisch case UAC_VERSION_2: 3500a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 3501a2acad82SClemens Ladisch break; 35029a2fe9b8SRuslan Bilovol case UAC_VERSION_3: 35039a2fe9b8SRuslan Bilovol mixer->protocol = UAC_VERSION_3; 35049a2fe9b8SRuslan Bilovol break; 3505a2acad82SClemens Ladisch } 3506f0b5e634SDaniel Mack 350717156f23SRuslan Bilovol if (mixer->protocol == UAC_VERSION_3 && 350817156f23SRuslan Bilovol chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { 3509f25ecf8fSTakashi Iwai err = snd_usb_mixer_controls_badd(mixer, ctrlif); 3510f25ecf8fSTakashi Iwai if (err < 0) 3511f0b5e634SDaniel Mack goto _error; 3512f25ecf8fSTakashi Iwai } else { 3513f25ecf8fSTakashi Iwai err = snd_usb_mixer_controls(mixer); 3514f25ecf8fSTakashi Iwai if (err < 0) 3515f25ecf8fSTakashi Iwai goto _error; 3516ad6baae6SJorge Sanjuan } 3517ad6baae6SJorge Sanjuan 3518f25ecf8fSTakashi Iwai err = snd_usb_mixer_status_create(mixer); 3519f25ecf8fSTakashi Iwai if (err < 0) 352017156f23SRuslan Bilovol goto _error; 3521ad6baae6SJorge Sanjuan 35224120fbedSTakashi Iwai err = create_keep_iface_ctl(mixer); 35234120fbedSTakashi Iwai if (err < 0) 35244120fbedSTakashi Iwai goto _error; 3525f0b5e634SDaniel Mack 3526328e9f69STakashi Iwai err = snd_usb_mixer_apply_create_quirk(mixer); 3527328e9f69STakashi Iwai if (err < 0) 3528328e9f69STakashi Iwai goto _error; 3529f0b5e634SDaniel Mack 35309cbb2808STakashi Iwai err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); 3531f0b5e634SDaniel Mack if (err < 0) 3532f0b5e634SDaniel Mack goto _error; 3533f0b5e634SDaniel Mack 35347449054aSTakashi Iwai if (list_empty(&chip->mixer_list)) 35357449054aSTakashi Iwai snd_card_ro_proc_new(chip->card, "usbmixer", chip, 35367449054aSTakashi Iwai snd_usb_mixer_proc_read); 3537f0b5e634SDaniel Mack 3538f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 3539f0b5e634SDaniel Mack return 0; 3540f0b5e634SDaniel Mack 3541f0b5e634SDaniel Mack _error: 3542f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 3543f0b5e634SDaniel Mack return err; 3544f0b5e634SDaniel Mack } 3545f0b5e634SDaniel Mack 3546a6cece9dSTakashi Iwai void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) 3547f0b5e634SDaniel Mack { 3548124751d5STakashi Iwai if (mixer->disconnected) 3549124751d5STakashi Iwai return; 3550124751d5STakashi Iwai if (mixer->urb) 3551f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 3552124751d5STakashi Iwai if (mixer->rc_urb) 3553f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 3554124751d5STakashi Iwai mixer->disconnected = true; 3555f0b5e634SDaniel Mack } 3556400362f1STakashi Iwai 3557400362f1STakashi Iwai #ifdef CONFIG_PM 3558400362f1STakashi Iwai /* stop any bus activity of a mixer */ 3559400362f1STakashi Iwai static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 3560400362f1STakashi Iwai { 3561400362f1STakashi Iwai usb_kill_urb(mixer->urb); 3562400362f1STakashi Iwai usb_kill_urb(mixer->rc_urb); 3563400362f1STakashi Iwai } 3564400362f1STakashi Iwai 3565400362f1STakashi Iwai static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 3566400362f1STakashi Iwai { 3567400362f1STakashi Iwai int err; 3568400362f1STakashi Iwai 3569400362f1STakashi Iwai if (mixer->urb) { 3570400362f1STakashi Iwai err = usb_submit_urb(mixer->urb, GFP_NOIO); 3571400362f1STakashi Iwai if (err < 0) 3572400362f1STakashi Iwai return err; 3573400362f1STakashi Iwai } 3574400362f1STakashi Iwai 3575400362f1STakashi Iwai return 0; 3576400362f1STakashi Iwai } 3577400362f1STakashi Iwai 3578400362f1STakashi Iwai int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) 3579400362f1STakashi Iwai { 3580400362f1STakashi Iwai snd_usb_mixer_inactivate(mixer); 3581400362f1STakashi Iwai return 0; 3582400362f1STakashi Iwai } 3583400362f1STakashi Iwai 35843360b84bSTakashi Iwai static int restore_mixer_value(struct usb_mixer_elem_list *list) 3585400362f1STakashi Iwai { 35868c558076STakashi Iwai struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); 3587400362f1STakashi Iwai int c, err, idx; 3588400362f1STakashi Iwai 3589400362f1STakashi Iwai if (cval->cmask) { 3590400362f1STakashi Iwai idx = 0; 3591400362f1STakashi Iwai for (c = 0; c < MAX_CHANNELS; c++) { 3592400362f1STakashi Iwai if (!(cval->cmask & (1 << c))) 3593400362f1STakashi Iwai continue; 35946aa6925cSYao-Wen Mao if (cval->cached & (1 << (c + 1))) { 3595eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, c + 1, idx, 3596400362f1STakashi Iwai cval->cache_val[idx]); 3597400362f1STakashi Iwai if (err < 0) 3598400362f1STakashi Iwai return err; 3599400362f1STakashi Iwai } 3600400362f1STakashi Iwai idx++; 3601400362f1STakashi Iwai } 3602400362f1STakashi Iwai } else { 3603400362f1STakashi Iwai /* master */ 3604400362f1STakashi Iwai if (cval->cached) { 3605eef90451SChris J Arges err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); 3606400362f1STakashi Iwai if (err < 0) 3607400362f1STakashi Iwai return err; 3608400362f1STakashi Iwai } 3609400362f1STakashi Iwai } 3610400362f1STakashi Iwai 3611400362f1STakashi Iwai return 0; 3612400362f1STakashi Iwai } 3613400362f1STakashi Iwai 3614400362f1STakashi Iwai int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) 3615400362f1STakashi Iwai { 36163360b84bSTakashi Iwai struct usb_mixer_elem_list *list; 3617400362f1STakashi Iwai int id, err; 3618400362f1STakashi Iwai 3619400362f1STakashi Iwai if (reset_resume) { 3620400362f1STakashi Iwai /* restore cached mixer values */ 3621400362f1STakashi Iwai for (id = 0; id < MAX_ID_ELEMS; id++) { 36228c558076STakashi Iwai for_each_mixer_elem(list, mixer, id) { 36233360b84bSTakashi Iwai if (list->resume) { 36243360b84bSTakashi Iwai err = list->resume(list); 3625400362f1STakashi Iwai if (err < 0) 3626400362f1STakashi Iwai return err; 3627400362f1STakashi Iwai } 3628400362f1STakashi Iwai } 3629400362f1STakashi Iwai } 36303360b84bSTakashi Iwai } 3631400362f1STakashi Iwai 3632964af639STakashi Iwai snd_usb_mixer_resume_quirk(mixer); 3633964af639STakashi Iwai 3634400362f1STakashi Iwai return snd_usb_mixer_activate(mixer); 3635400362f1STakashi Iwai } 3636400362f1STakashi Iwai #endif 36373360b84bSTakashi Iwai 36383360b84bSTakashi Iwai void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, 36393360b84bSTakashi Iwai struct usb_mixer_interface *mixer, 36403360b84bSTakashi Iwai int unitid) 36413360b84bSTakashi Iwai { 36423360b84bSTakashi Iwai list->mixer = mixer; 36433360b84bSTakashi Iwai list->id = unitid; 36443360b84bSTakashi Iwai list->dump = snd_usb_mixer_dump_cval; 36453360b84bSTakashi Iwai #ifdef CONFIG_PM 36463360b84bSTakashi Iwai list->resume = restore_mixer_value; 36473360b84bSTakashi Iwai #endif 36483360b84bSTakashi Iwai } 3649