1f0b5e634SDaniel Mack /* 2f0b5e634SDaniel Mack * (Tentative) USB Audio Driver for ALSA 3f0b5e634SDaniel Mack * 4f0b5e634SDaniel Mack * Mixer control part 5f0b5e634SDaniel Mack * 6f0b5e634SDaniel Mack * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> 7f0b5e634SDaniel Mack * 8f0b5e634SDaniel Mack * Many codes borrowed from audio.c by 9f0b5e634SDaniel Mack * Alan Cox (alan@lxorguk.ukuu.org.uk) 10f0b5e634SDaniel Mack * Thomas Sailer (sailer@ife.ee.ethz.ch) 11f0b5e634SDaniel Mack * 12f0b5e634SDaniel Mack * 13f0b5e634SDaniel Mack * This program is free software; you can redistribute it and/or modify 14f0b5e634SDaniel Mack * it under the terms of the GNU General Public License as published by 15f0b5e634SDaniel Mack * the Free Software Foundation; either version 2 of the License, or 16f0b5e634SDaniel Mack * (at your option) any later version. 17f0b5e634SDaniel Mack * 18f0b5e634SDaniel Mack * This program is distributed in the hope that it will be useful, 19f0b5e634SDaniel Mack * but WITHOUT ANY WARRANTY; without even the implied warranty of 20f0b5e634SDaniel Mack * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21f0b5e634SDaniel Mack * GNU General Public License for more details. 22f0b5e634SDaniel Mack * 23f0b5e634SDaniel Mack * You should have received a copy of the GNU General Public License 24f0b5e634SDaniel Mack * along with this program; if not, write to the Free Software 25f0b5e634SDaniel Mack * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26f0b5e634SDaniel Mack * 27f0b5e634SDaniel Mack */ 28f0b5e634SDaniel Mack 29157a57b6SDaniel Mack /* 30157a57b6SDaniel Mack * TODOs, for both the mixer and the streaming interfaces: 31157a57b6SDaniel Mack * 32157a57b6SDaniel Mack * - support for UAC2 effect units 33157a57b6SDaniel Mack * - support for graphical equalizers 34157a57b6SDaniel Mack * - RANGE and MEM set commands (UAC2) 35157a57b6SDaniel Mack * - RANGE and MEM interrupt dispatchers (UAC2) 36157a57b6SDaniel Mack * - audio channel clustering (UAC2) 37157a57b6SDaniel Mack * - audio sample rate converter units (UAC2) 38157a57b6SDaniel Mack * - proper handling of clock multipliers (UAC2) 39157a57b6SDaniel Mack * - dispatch clock change notifications (UAC2) 40157a57b6SDaniel Mack * - stop PCM streams which use a clock that became invalid 41157a57b6SDaniel Mack * - stop PCM streams which use a clock selector that has changed 42157a57b6SDaniel Mack * - parse available sample rates again when clock sources changed 43157a57b6SDaniel Mack */ 44157a57b6SDaniel Mack 45f0b5e634SDaniel Mack #include <linux/bitops.h> 46f0b5e634SDaniel Mack #include <linux/init.h> 47f0b5e634SDaniel Mack #include <linux/list.h> 48f0b5e634SDaniel Mack #include <linux/slab.h> 49f0b5e634SDaniel Mack #include <linux/string.h> 50f0b5e634SDaniel Mack #include <linux/usb.h> 51f0b5e634SDaniel Mack #include <linux/usb/audio.h> 5223caaf19SDaniel Mack #include <linux/usb/audio-v2.h> 53f0b5e634SDaniel Mack 54f0b5e634SDaniel Mack #include <sound/core.h> 55f0b5e634SDaniel Mack #include <sound/control.h> 56f0b5e634SDaniel Mack #include <sound/hwdep.h> 57f0b5e634SDaniel Mack #include <sound/info.h> 58f0b5e634SDaniel Mack #include <sound/tlv.h> 59f0b5e634SDaniel Mack 60f0b5e634SDaniel Mack #include "usbaudio.h" 61f0b5e634SDaniel Mack #include "mixer.h" 62f0b5e634SDaniel Mack #include "helper.h" 63f0b5e634SDaniel Mack #include "mixer_quirks.h" 6488a8516aSOliver Neukum #include "power.h" 65f0b5e634SDaniel Mack 66f0b5e634SDaniel Mack #define MAX_ID_ELEMS 256 67f0b5e634SDaniel Mack 68f0b5e634SDaniel Mack struct usb_audio_term { 69f0b5e634SDaniel Mack int id; 70f0b5e634SDaniel Mack int type; 71f0b5e634SDaniel Mack int channels; 72f0b5e634SDaniel Mack unsigned int chconfig; 73f0b5e634SDaniel Mack int name; 74f0b5e634SDaniel Mack }; 75f0b5e634SDaniel Mack 76f0b5e634SDaniel Mack struct usbmix_name_map; 77f0b5e634SDaniel Mack 78f0b5e634SDaniel Mack struct mixer_build { 79f0b5e634SDaniel Mack struct snd_usb_audio *chip; 80f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 81f0b5e634SDaniel Mack unsigned char *buffer; 82f0b5e634SDaniel Mack unsigned int buflen; 83f0b5e634SDaniel Mack DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); 84f0b5e634SDaniel Mack struct usb_audio_term oterm; 85f0b5e634SDaniel Mack const struct usbmix_name_map *map; 86f0b5e634SDaniel Mack const struct usbmix_selector_map *selector_map; 87f0b5e634SDaniel Mack }; 88f0b5e634SDaniel Mack 891cdfa9f3SJoseph Teichman /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ 90f0b5e634SDaniel Mack enum { 91f0b5e634SDaniel Mack USB_XU_CLOCK_RATE = 0xe301, 92f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE = 0xe302, 93f0b5e634SDaniel Mack USB_XU_DIGITAL_IO_STATUS = 0xe303, 94f0b5e634SDaniel Mack USB_XU_DEVICE_OPTIONS = 0xe304, 95f0b5e634SDaniel Mack USB_XU_DIRECT_MONITORING = 0xe305, 96f0b5e634SDaniel Mack USB_XU_METERING = 0xe306 97f0b5e634SDaniel Mack }; 98f0b5e634SDaniel Mack enum { 99f0b5e634SDaniel Mack USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ 100f0b5e634SDaniel Mack USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ 101f0b5e634SDaniel Mack USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ 102f0b5e634SDaniel Mack USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ 103f0b5e634SDaniel Mack }; 104f0b5e634SDaniel Mack 105f0b5e634SDaniel Mack /* 106f0b5e634SDaniel Mack * manual mapping of mixer names 107f0b5e634SDaniel Mack * if the mixer topology is too complicated and the parsed names are 108f0b5e634SDaniel Mack * ambiguous, add the entries in usbmixer_maps.c. 109f0b5e634SDaniel Mack */ 110f0b5e634SDaniel Mack #include "mixer_maps.c" 111f0b5e634SDaniel Mack 112f0b5e634SDaniel Mack static const struct usbmix_name_map * 113f0b5e634SDaniel Mack find_map(struct mixer_build *state, int unitid, int control) 114f0b5e634SDaniel Mack { 115f0b5e634SDaniel Mack const struct usbmix_name_map *p = state->map; 116f0b5e634SDaniel Mack 117f0b5e634SDaniel Mack if (!p) 118f0b5e634SDaniel Mack return NULL; 119f0b5e634SDaniel Mack 120f0b5e634SDaniel Mack for (p = state->map; p->id; p++) { 121f0b5e634SDaniel Mack if (p->id == unitid && 122f0b5e634SDaniel Mack (!control || !p->control || control == p->control)) 123f0b5e634SDaniel Mack return p; 124f0b5e634SDaniel Mack } 125f0b5e634SDaniel Mack return NULL; 126f0b5e634SDaniel Mack } 127f0b5e634SDaniel Mack 128f0b5e634SDaniel Mack /* get the mapped name if the unit matches */ 129f0b5e634SDaniel Mack static int 130f0b5e634SDaniel Mack check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) 131f0b5e634SDaniel Mack { 132f0b5e634SDaniel Mack if (!p || !p->name) 133f0b5e634SDaniel Mack return 0; 134f0b5e634SDaniel Mack 135f0b5e634SDaniel Mack buflen--; 136f0b5e634SDaniel Mack return strlcpy(buf, p->name, buflen); 137f0b5e634SDaniel Mack } 138f0b5e634SDaniel Mack 139f0b5e634SDaniel Mack /* check whether the control should be ignored */ 140f0b5e634SDaniel Mack static inline int 141f0b5e634SDaniel Mack check_ignored_ctl(const struct usbmix_name_map *p) 142f0b5e634SDaniel Mack { 143f0b5e634SDaniel Mack if (!p || p->name || p->dB) 144f0b5e634SDaniel Mack return 0; 145f0b5e634SDaniel Mack return 1; 146f0b5e634SDaniel Mack } 147f0b5e634SDaniel Mack 148f0b5e634SDaniel Mack /* dB mapping */ 149f0b5e634SDaniel Mack static inline void check_mapped_dB(const struct usbmix_name_map *p, 150f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 151f0b5e634SDaniel Mack { 152f0b5e634SDaniel Mack if (p && p->dB) { 153f0b5e634SDaniel Mack cval->dBmin = p->dB->min; 154f0b5e634SDaniel Mack cval->dBmax = p->dB->max; 15538b65190STakashi Iwai cval->initialized = 1; 156f0b5e634SDaniel Mack } 157f0b5e634SDaniel Mack } 158f0b5e634SDaniel Mack 159f0b5e634SDaniel Mack /* get the mapped selector source name */ 160f0b5e634SDaniel Mack static int check_mapped_selector_name(struct mixer_build *state, int unitid, 161f0b5e634SDaniel Mack int index, char *buf, int buflen) 162f0b5e634SDaniel Mack { 163f0b5e634SDaniel Mack const struct usbmix_selector_map *p; 164f0b5e634SDaniel Mack 165f0b5e634SDaniel Mack if (! state->selector_map) 166f0b5e634SDaniel Mack return 0; 167f0b5e634SDaniel Mack for (p = state->selector_map; p->id; p++) { 168f0b5e634SDaniel Mack if (p->id == unitid && index < p->count) 169f0b5e634SDaniel Mack return strlcpy(buf, p->names[index], buflen); 170f0b5e634SDaniel Mack } 171f0b5e634SDaniel Mack return 0; 172f0b5e634SDaniel Mack } 173f0b5e634SDaniel Mack 174f0b5e634SDaniel Mack /* 175f0b5e634SDaniel Mack * find an audio control unit with the given unit id 176f0b5e634SDaniel Mack */ 177f0b5e634SDaniel Mack static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) 178f0b5e634SDaniel Mack { 17967e1daa0SDaniel Mack /* we just parse the header */ 18067e1daa0SDaniel Mack struct uac_feature_unit_descriptor *hdr = NULL; 181f0b5e634SDaniel Mack 18267e1daa0SDaniel Mack while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, 183f0b5e634SDaniel Mack USB_DT_CS_INTERFACE)) != NULL) { 18467e1daa0SDaniel Mack if (hdr->bLength >= 4 && 18567e1daa0SDaniel Mack hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && 18667e1daa0SDaniel Mack hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && 18767e1daa0SDaniel Mack hdr->bUnitID == unit) 18867e1daa0SDaniel Mack return hdr; 189f0b5e634SDaniel Mack } 19067e1daa0SDaniel Mack 191f0b5e634SDaniel Mack return NULL; 192f0b5e634SDaniel Mack } 193f0b5e634SDaniel Mack 194f0b5e634SDaniel Mack /* 195f0b5e634SDaniel Mack * copy a string with the given id 196f0b5e634SDaniel Mack */ 197f0b5e634SDaniel Mack static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) 198f0b5e634SDaniel Mack { 199f0b5e634SDaniel Mack int len = usb_string(state->chip->dev, index, buf, maxlen - 1); 200f0b5e634SDaniel Mack buf[len] = 0; 201f0b5e634SDaniel Mack return len; 202f0b5e634SDaniel Mack } 203f0b5e634SDaniel Mack 204f0b5e634SDaniel Mack /* 205f0b5e634SDaniel Mack * convert from the byte/word on usb descriptor to the zero-based integer 206f0b5e634SDaniel Mack */ 207f0b5e634SDaniel Mack static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) 208f0b5e634SDaniel Mack { 209f0b5e634SDaniel Mack switch (cval->val_type) { 210f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 211f0b5e634SDaniel Mack return !!val; 212f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 213f0b5e634SDaniel Mack return !val; 214f0b5e634SDaniel Mack case USB_MIXER_U8: 215f0b5e634SDaniel Mack val &= 0xff; 216f0b5e634SDaniel Mack break; 217f0b5e634SDaniel Mack case USB_MIXER_S8: 218f0b5e634SDaniel Mack val &= 0xff; 219f0b5e634SDaniel Mack if (val >= 0x80) 220f0b5e634SDaniel Mack val -= 0x100; 221f0b5e634SDaniel Mack break; 222f0b5e634SDaniel Mack case USB_MIXER_U16: 223f0b5e634SDaniel Mack val &= 0xffff; 224f0b5e634SDaniel Mack break; 225f0b5e634SDaniel Mack case USB_MIXER_S16: 226f0b5e634SDaniel Mack val &= 0xffff; 227f0b5e634SDaniel Mack if (val >= 0x8000) 228f0b5e634SDaniel Mack val -= 0x10000; 229f0b5e634SDaniel Mack break; 230f0b5e634SDaniel Mack } 231f0b5e634SDaniel Mack return val; 232f0b5e634SDaniel Mack } 233f0b5e634SDaniel Mack 234f0b5e634SDaniel Mack /* 235f0b5e634SDaniel Mack * convert from the zero-based int to the byte/word for usb descriptor 236f0b5e634SDaniel Mack */ 237f0b5e634SDaniel Mack static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) 238f0b5e634SDaniel Mack { 239f0b5e634SDaniel Mack switch (cval->val_type) { 240f0b5e634SDaniel Mack case USB_MIXER_BOOLEAN: 241f0b5e634SDaniel Mack return !!val; 242f0b5e634SDaniel Mack case USB_MIXER_INV_BOOLEAN: 243f0b5e634SDaniel Mack return !val; 244f0b5e634SDaniel Mack case USB_MIXER_S8: 245f0b5e634SDaniel Mack case USB_MIXER_U8: 246f0b5e634SDaniel Mack return val & 0xff; 247f0b5e634SDaniel Mack case USB_MIXER_S16: 248f0b5e634SDaniel Mack case USB_MIXER_U16: 249f0b5e634SDaniel Mack return val & 0xffff; 250f0b5e634SDaniel Mack } 251f0b5e634SDaniel Mack return 0; /* not reached */ 252f0b5e634SDaniel Mack } 253f0b5e634SDaniel Mack 254f0b5e634SDaniel Mack static int get_relative_value(struct usb_mixer_elem_info *cval, int val) 255f0b5e634SDaniel Mack { 256f0b5e634SDaniel Mack if (! cval->res) 257f0b5e634SDaniel Mack cval->res = 1; 258f0b5e634SDaniel Mack if (val < cval->min) 259f0b5e634SDaniel Mack return 0; 260f0b5e634SDaniel Mack else if (val >= cval->max) 261f0b5e634SDaniel Mack return (cval->max - cval->min + cval->res - 1) / cval->res; 262f0b5e634SDaniel Mack else 263f0b5e634SDaniel Mack return (val - cval->min) / cval->res; 264f0b5e634SDaniel Mack } 265f0b5e634SDaniel Mack 266f0b5e634SDaniel Mack static int get_abs_value(struct usb_mixer_elem_info *cval, int val) 267f0b5e634SDaniel Mack { 268f0b5e634SDaniel Mack if (val < 0) 269f0b5e634SDaniel Mack return cval->min; 270f0b5e634SDaniel Mack if (! cval->res) 271f0b5e634SDaniel Mack cval->res = 1; 272f0b5e634SDaniel Mack val *= cval->res; 273f0b5e634SDaniel Mack val += cval->min; 274f0b5e634SDaniel Mack if (val > cval->max) 275f0b5e634SDaniel Mack return cval->max; 276f0b5e634SDaniel Mack return val; 277f0b5e634SDaniel Mack } 278f0b5e634SDaniel Mack 279f0b5e634SDaniel Mack 280f0b5e634SDaniel Mack /* 281f0b5e634SDaniel Mack * retrieve a mixer value 282f0b5e634SDaniel Mack */ 283f0b5e634SDaniel Mack 28423caaf19SDaniel Mack static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 285f0b5e634SDaniel Mack { 2863d8d4dcfSDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 287f0b5e634SDaniel Mack unsigned char buf[2]; 288f0b5e634SDaniel Mack int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 289f0b5e634SDaniel Mack int timeout = 10; 290978520b7STakashi Iwai int idx = 0, err; 291f0b5e634SDaniel Mack 29288a8516aSOliver Neukum err = snd_usb_autoresume(cval->mixer->chip); 29388a8516aSOliver Neukum if (err < 0) 29488a8516aSOliver Neukum return -EIO; 29534f3c89fSTakashi Iwai down_read(&chip->shutdown_rwsem); 296f0b5e634SDaniel Mack while (timeout-- > 0) { 297978520b7STakashi Iwai if (chip->shutdown) 298978520b7STakashi Iwai break; 299978520b7STakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); 3003d8d4dcfSDaniel Mack if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 301f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 302978520b7STakashi Iwai validx, idx, buf, val_len) >= val_len) { 303f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 304978520b7STakashi Iwai err = 0; 305978520b7STakashi Iwai goto out; 306f0b5e634SDaniel Mack } 307f0b5e634SDaniel Mack } 308f0b5e634SDaniel Mack snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 309978520b7STakashi Iwai request, validx, idx, cval->val_type); 310978520b7STakashi Iwai err = -EINVAL; 311978520b7STakashi Iwai 312978520b7STakashi Iwai out: 31334f3c89fSTakashi Iwai up_read(&chip->shutdown_rwsem); 314978520b7STakashi Iwai snd_usb_autosuspend(cval->mixer->chip); 315978520b7STakashi Iwai return err; 316f0b5e634SDaniel Mack } 317f0b5e634SDaniel Mack 31823caaf19SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 31923caaf19SDaniel Mack { 3203d8d4dcfSDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 321e8bdb6bbSDaniel Mack unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ 32223caaf19SDaniel Mack unsigned char *val; 323978520b7STakashi Iwai int idx = 0, ret, size; 32423caaf19SDaniel Mack __u8 bRequest; 32523caaf19SDaniel Mack 326e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 327e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 328e8bdb6bbSDaniel Mack size = sizeof(__u16); 329e8bdb6bbSDaniel Mack } else { 330e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 331e8bdb6bbSDaniel Mack size = sizeof(buf); 332e8bdb6bbSDaniel Mack } 333e8bdb6bbSDaniel Mack 334e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 33523caaf19SDaniel Mack 33688a8516aSOliver Neukum ret = snd_usb_autoresume(chip) ? -EIO : 0; 33788a8516aSOliver Neukum if (ret) 33888a8516aSOliver Neukum goto error; 33988a8516aSOliver Neukum 34034f3c89fSTakashi Iwai down_read(&chip->shutdown_rwsem); 341978520b7STakashi Iwai if (chip->shutdown) 342978520b7STakashi Iwai ret = -ENODEV; 343978520b7STakashi Iwai else { 344978520b7STakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); 3453d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 34623caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 347978520b7STakashi Iwai validx, idx, buf, size); 348978520b7STakashi Iwai } 34934f3c89fSTakashi Iwai up_read(&chip->shutdown_rwsem); 35088a8516aSOliver Neukum snd_usb_autosuspend(chip); 35123caaf19SDaniel Mack 35223caaf19SDaniel Mack if (ret < 0) { 35388a8516aSOliver Neukum error: 35409414207SDaniel Mack snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 355978520b7STakashi Iwai request, validx, idx, cval->val_type); 35623caaf19SDaniel Mack return ret; 35723caaf19SDaniel Mack } 35823caaf19SDaniel Mack 359e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 360e8bdb6bbSDaniel Mack 36123caaf19SDaniel Mack switch (request) { 36223caaf19SDaniel Mack case UAC_GET_CUR: 36323caaf19SDaniel Mack val = buf; 36423caaf19SDaniel Mack break; 36523caaf19SDaniel Mack case UAC_GET_MIN: 36623caaf19SDaniel Mack val = buf + sizeof(__u16); 36723caaf19SDaniel Mack break; 36823caaf19SDaniel Mack case UAC_GET_MAX: 36923caaf19SDaniel Mack val = buf + sizeof(__u16) * 2; 37023caaf19SDaniel Mack break; 37123caaf19SDaniel Mack case UAC_GET_RES: 37223caaf19SDaniel Mack val = buf + sizeof(__u16) * 3; 37323caaf19SDaniel Mack break; 37423caaf19SDaniel Mack default: 37523caaf19SDaniel Mack return -EINVAL; 37623caaf19SDaniel Mack } 37723caaf19SDaniel Mack 37823caaf19SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); 37923caaf19SDaniel Mack 38023caaf19SDaniel Mack return 0; 38123caaf19SDaniel Mack } 38223caaf19SDaniel Mack 38323caaf19SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 38423caaf19SDaniel Mack { 3859f814105SEldad Zack validx += cval->idx_off; 3869f814105SEldad Zack 38723caaf19SDaniel Mack return (cval->mixer->protocol == UAC_VERSION_1) ? 38823caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 38923caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 39023caaf19SDaniel Mack } 39123caaf19SDaniel Mack 392f0b5e634SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) 393f0b5e634SDaniel Mack { 394f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 395f0b5e634SDaniel Mack } 396f0b5e634SDaniel Mack 397f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 398f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 399f0b5e634SDaniel Mack int channel, int *value) 400f0b5e634SDaniel Mack { 401f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); 402f0b5e634SDaniel Mack } 403f0b5e634SDaniel Mack 404f0b5e634SDaniel Mack static int get_cur_mix_value(struct usb_mixer_elem_info *cval, 405f0b5e634SDaniel Mack int channel, int index, int *value) 406f0b5e634SDaniel Mack { 407f0b5e634SDaniel Mack int err; 408f0b5e634SDaniel Mack 409f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 410f0b5e634SDaniel Mack *value = cval->cache_val[index]; 411f0b5e634SDaniel Mack return 0; 412f0b5e634SDaniel Mack } 413f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 414f0b5e634SDaniel Mack if (err < 0) { 415f0b5e634SDaniel Mack if (!cval->mixer->ignore_ctl_error) 41623caaf19SDaniel Mack snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", 417f0b5e634SDaniel Mack cval->control, channel, err); 418f0b5e634SDaniel Mack return err; 419f0b5e634SDaniel Mack } 420f0b5e634SDaniel Mack cval->cached |= 1 << channel; 421f0b5e634SDaniel Mack cval->cache_val[index] = *value; 422f0b5e634SDaniel Mack return 0; 423f0b5e634SDaniel Mack } 424f0b5e634SDaniel Mack 425f0b5e634SDaniel Mack 426f0b5e634SDaniel Mack /* 427f0b5e634SDaniel Mack * set a mixer value 428f0b5e634SDaniel Mack */ 429f0b5e634SDaniel Mack 430f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 431f0b5e634SDaniel Mack int request, int validx, int value_set) 432f0b5e634SDaniel Mack { 4333d8d4dcfSDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 434f0b5e634SDaniel Mack unsigned char buf[2]; 435978520b7STakashi Iwai int idx = 0, val_len, err, timeout = 10; 43623caaf19SDaniel Mack 4379f814105SEldad Zack validx += cval->idx_off; 4389f814105SEldad Zack 43923caaf19SDaniel Mack if (cval->mixer->protocol == UAC_VERSION_1) { 44023caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 44123caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 44223caaf19SDaniel Mack /* audio class v2 controls are always 2 bytes in size */ 44323caaf19SDaniel Mack val_len = sizeof(__u16); 44423caaf19SDaniel Mack 44523caaf19SDaniel Mack /* FIXME */ 44623caaf19SDaniel Mack if (request != UAC_SET_CUR) { 44723caaf19SDaniel Mack snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); 44823caaf19SDaniel Mack return -EINVAL; 44923caaf19SDaniel Mack } 45023caaf19SDaniel Mack 45123caaf19SDaniel Mack request = UAC2_CS_CUR; 45223caaf19SDaniel Mack } 453f0b5e634SDaniel Mack 454f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 455f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 456f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 45788a8516aSOliver Neukum err = snd_usb_autoresume(chip); 45888a8516aSOliver Neukum if (err < 0) 45988a8516aSOliver Neukum return -EIO; 46034f3c89fSTakashi Iwai down_read(&chip->shutdown_rwsem); 461978520b7STakashi Iwai while (timeout-- > 0) { 462978520b7STakashi Iwai if (chip->shutdown) 463978520b7STakashi Iwai break; 464978520b7STakashi Iwai idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); 4653d8d4dcfSDaniel Mack if (snd_usb_ctl_msg(chip->dev, 4663d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 467f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 468978520b7STakashi Iwai validx, idx, buf, val_len) >= 0) { 469978520b7STakashi Iwai err = 0; 470978520b7STakashi Iwai goto out; 47188a8516aSOliver Neukum } 472978520b7STakashi Iwai } 473f0b5e634SDaniel Mack snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 474978520b7STakashi Iwai request, validx, idx, cval->val_type, buf[0], buf[1]); 475978520b7STakashi Iwai err = -EINVAL; 476978520b7STakashi Iwai 477978520b7STakashi Iwai out: 47834f3c89fSTakashi Iwai up_read(&chip->shutdown_rwsem); 479978520b7STakashi Iwai snd_usb_autosuspend(chip); 480978520b7STakashi Iwai return err; 481f0b5e634SDaniel Mack } 482f0b5e634SDaniel Mack 483f0b5e634SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) 484f0b5e634SDaniel Mack { 485f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 486f0b5e634SDaniel Mack } 487f0b5e634SDaniel Mack 488f0b5e634SDaniel Mack static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 489f0b5e634SDaniel Mack int index, int value) 490f0b5e634SDaniel Mack { 491f0b5e634SDaniel Mack int err; 492a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 493a6a33259SDaniel Mack cval->master_readonly : 494a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 495a6a33259SDaniel Mack 496a6a33259SDaniel Mack if (read_only) { 497a6a33259SDaniel Mack snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", 498a6a33259SDaniel Mack __func__, channel, cval->control); 499a6a33259SDaniel Mack return 0; 500a6a33259SDaniel Mack } 501a6a33259SDaniel Mack 502f0b5e634SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, 503f0b5e634SDaniel Mack value); 504f0b5e634SDaniel Mack if (err < 0) 505f0b5e634SDaniel Mack return err; 506f0b5e634SDaniel Mack cval->cached |= 1 << channel; 507f0b5e634SDaniel Mack cval->cache_val[index] = value; 508f0b5e634SDaniel Mack return 0; 509f0b5e634SDaniel Mack } 510f0b5e634SDaniel Mack 511f0b5e634SDaniel Mack /* 512f0b5e634SDaniel Mack * TLV callback for mixer volume controls 513f0b5e634SDaniel Mack */ 514285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 515f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 516f0b5e634SDaniel Mack { 517f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 518f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 519f0b5e634SDaniel Mack 520f0b5e634SDaniel Mack if (size < sizeof(scale)) 521f0b5e634SDaniel Mack return -ENOMEM; 522f0b5e634SDaniel Mack scale[2] = cval->dBmin; 523f0b5e634SDaniel Mack scale[3] = cval->dBmax; 524f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 525f0b5e634SDaniel Mack return -EFAULT; 526f0b5e634SDaniel Mack return 0; 527f0b5e634SDaniel Mack } 528f0b5e634SDaniel Mack 529f0b5e634SDaniel Mack /* 530f0b5e634SDaniel Mack * parser routines begin here... 531f0b5e634SDaniel Mack */ 532f0b5e634SDaniel Mack 533f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 534f0b5e634SDaniel Mack 535f0b5e634SDaniel Mack 536f0b5e634SDaniel Mack /* 537f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 538f0b5e634SDaniel Mack * used for mixer unit parser 539f0b5e634SDaniel Mack */ 540f0b5e634SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) 541f0b5e634SDaniel Mack { 542f0b5e634SDaniel Mack int idx = ich * num_outs + och; 543f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 544f0b5e634SDaniel Mack } 545f0b5e634SDaniel Mack 546f0b5e634SDaniel Mack 547f0b5e634SDaniel Mack /* 548f0b5e634SDaniel Mack * add an alsa control element 549f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 550f0b5e634SDaniel Mack * 551f0b5e634SDaniel Mack * if failed, give up and free the control instance. 552f0b5e634SDaniel Mack */ 553f0b5e634SDaniel Mack 554ef9d5970SDaniel Mack int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, 555ef9d5970SDaniel Mack struct snd_kcontrol *kctl) 556f0b5e634SDaniel Mack { 557f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 558f0b5e634SDaniel Mack int err; 559f0b5e634SDaniel Mack 560ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 561f0b5e634SDaniel Mack kctl->id.index++; 562ef9d5970SDaniel Mack if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { 563f0b5e634SDaniel Mack snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); 564f0b5e634SDaniel Mack return err; 565f0b5e634SDaniel Mack } 566f0b5e634SDaniel Mack cval->elem_id = &kctl->id; 567ef9d5970SDaniel Mack cval->next_id_elem = mixer->id_elems[cval->id]; 568ef9d5970SDaniel Mack mixer->id_elems[cval->id] = cval; 569f0b5e634SDaniel Mack return 0; 570f0b5e634SDaniel Mack } 571f0b5e634SDaniel Mack 572f0b5e634SDaniel Mack 573f0b5e634SDaniel Mack /* 574f0b5e634SDaniel Mack * get a terminal name string 575f0b5e634SDaniel Mack */ 576f0b5e634SDaniel Mack 577f0b5e634SDaniel Mack static struct iterm_name_combo { 578f0b5e634SDaniel Mack int type; 579f0b5e634SDaniel Mack char *name; 580f0b5e634SDaniel Mack } iterm_names[] = { 581f0b5e634SDaniel Mack { 0x0300, "Output" }, 582f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 583f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 584f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 585f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 586f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 587f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 588f0b5e634SDaniel Mack { 0x0307, "LFE" }, 589f0b5e634SDaniel Mack { 0x0600, "External In" }, 590f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 591f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 592f0b5e634SDaniel Mack { 0x0603, "Line" }, 593f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 594f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 595f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 596f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 597f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 598f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 599f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 600f0b5e634SDaniel Mack { 0x0703, "CD" }, 601f0b5e634SDaniel Mack { 0x0704, "DAT" }, 602f0b5e634SDaniel Mack { 0x0705, "DCC" }, 603f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 604f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 605f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 606f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 607f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 608f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 609f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 610f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 611f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 612f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 613f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 614f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 615f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 616f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 617f0b5e634SDaniel Mack { 0 }, 618f0b5e634SDaniel Mack }; 619f0b5e634SDaniel Mack 620f0b5e634SDaniel Mack static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 621f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 622f0b5e634SDaniel Mack { 623f0b5e634SDaniel Mack struct iterm_name_combo *names; 624f0b5e634SDaniel Mack 625f0b5e634SDaniel Mack if (iterm->name) 626f0b5e634SDaniel Mack return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); 627f0b5e634SDaniel Mack 628f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 629f0b5e634SDaniel Mack if (iterm->type >> 16) { 630f0b5e634SDaniel Mack if (term_only) 631f0b5e634SDaniel Mack return 0; 632f0b5e634SDaniel Mack switch (iterm->type >> 16) { 633f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 634f0b5e634SDaniel Mack strcpy(name, "Selector"); return 8; 63569da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 636f0b5e634SDaniel Mack strcpy(name, "Process Unit"); return 12; 63769da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 638f0b5e634SDaniel Mack strcpy(name, "Ext Unit"); return 8; 639f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 640f0b5e634SDaniel Mack strcpy(name, "Mixer"); return 5; 641f0b5e634SDaniel Mack default: 642f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 643f0b5e634SDaniel Mack } 644f0b5e634SDaniel Mack } 645f0b5e634SDaniel Mack 646f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 647f0b5e634SDaniel Mack case 0x0100: 648f0b5e634SDaniel Mack strcpy(name, "PCM"); return 3; 649f0b5e634SDaniel Mack case 0x0200: 650f0b5e634SDaniel Mack strcpy(name, "Mic"); return 3; 651f0b5e634SDaniel Mack case 0x0400: 652f0b5e634SDaniel Mack strcpy(name, "Headset"); return 7; 653f0b5e634SDaniel Mack case 0x0500: 654f0b5e634SDaniel Mack strcpy(name, "Phone"); return 5; 655f0b5e634SDaniel Mack } 656f0b5e634SDaniel Mack 657f0b5e634SDaniel Mack for (names = iterm_names; names->type; names++) 658f0b5e634SDaniel Mack if (names->type == iterm->type) { 659f0b5e634SDaniel Mack strcpy(name, names->name); 660f0b5e634SDaniel Mack return strlen(names->name); 661f0b5e634SDaniel Mack } 662f0b5e634SDaniel Mack return 0; 663f0b5e634SDaniel Mack } 664f0b5e634SDaniel Mack 665f0b5e634SDaniel Mack 666f0b5e634SDaniel Mack /* 667f0b5e634SDaniel Mack * parse the source unit recursively until it reaches to a terminal 668f0b5e634SDaniel Mack * or a branched unit. 669f0b5e634SDaniel Mack */ 670f0b5e634SDaniel Mack static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) 671f0b5e634SDaniel Mack { 67209414207SDaniel Mack int err; 67323caaf19SDaniel Mack void *p1; 674f0b5e634SDaniel Mack 675f0b5e634SDaniel Mack memset(term, 0, sizeof(*term)); 676f0b5e634SDaniel Mack while ((p1 = find_audio_control_unit(state, id)) != NULL) { 67723caaf19SDaniel Mack unsigned char *hdr = p1; 678f0b5e634SDaniel Mack term->id = id; 67923caaf19SDaniel Mack switch (hdr[2]) { 680f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 68123caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 68223caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 68323caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 68423caaf19SDaniel Mack term->channels = d->bNrChannels; 68523caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 68623caaf19SDaniel Mack term->name = d->iTerminal; 68723caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 68823caaf19SDaniel Mack struct uac2_input_terminal_descriptor *d = p1; 68923caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 69023caaf19SDaniel Mack term->channels = d->bNrChannels; 69123caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 69223caaf19SDaniel Mack term->name = d->iTerminal; 69309414207SDaniel Mack 69409414207SDaniel Mack /* call recursively to get the clock selectors */ 69509414207SDaniel Mack err = check_input_term(state, d->bCSourceID, term); 69609414207SDaniel Mack if (err < 0) 69709414207SDaniel Mack return err; 69823caaf19SDaniel Mack } 699f0b5e634SDaniel Mack return 0; 70023caaf19SDaniel Mack case UAC_FEATURE_UNIT: { 70123caaf19SDaniel Mack /* the header is the same for v1 and v2 */ 70223caaf19SDaniel Mack struct uac_feature_unit_descriptor *d = p1; 7035e688883SDaniel Mack id = d->bSourceID; 704f0b5e634SDaniel Mack break; /* continue to parse */ 705f0b5e634SDaniel Mack } 70623caaf19SDaniel Mack case UAC_MIXER_UNIT: { 70723caaf19SDaniel Mack struct uac_mixer_unit_descriptor *d = p1; 70823caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 70923caaf19SDaniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 71023caaf19SDaniel Mack term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); 71123caaf19SDaniel Mack term->name = uac_mixer_unit_iMixer(d); 712f0b5e634SDaniel Mack return 0; 71323caaf19SDaniel Mack } 71409414207SDaniel Mack case UAC_SELECTOR_UNIT: 71509414207SDaniel Mack case UAC2_CLOCK_SELECTOR: { 71623caaf19SDaniel Mack struct uac_selector_unit_descriptor *d = p1; 71723caaf19SDaniel Mack /* call recursively to retrieve the channel info */ 7184d7b86c9SDaniel Mack err = check_input_term(state, d->baSourceID[0], term); 7194d7b86c9SDaniel Mack if (err < 0) 7204d7b86c9SDaniel Mack return err; 72123caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 72223caaf19SDaniel Mack term->id = id; 72323caaf19SDaniel Mack term->name = uac_selector_unit_iSelector(d); 72423caaf19SDaniel Mack return 0; 72523caaf19SDaniel Mack } 72669da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 7275dae5fd2SEldad Zack case UAC1_EXTENSION_UNIT: 7285dae5fd2SEldad Zack /* UAC2_PROCESSING_UNIT_V2 */ 72961ac5130STorstein Hegge /* UAC2_EFFECT_UNIT */ 73061ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: { 73123caaf19SDaniel Mack struct uac_processing_unit_descriptor *d = p1; 7325dae5fd2SEldad Zack 7335dae5fd2SEldad Zack if (state->mixer->protocol == UAC_VERSION_2 && 7345dae5fd2SEldad Zack hdr[2] == UAC2_EFFECT_UNIT) { 7355dae5fd2SEldad Zack /* UAC2/UAC1 unit IDs overlap here in an 7365dae5fd2SEldad Zack * uncompatible way. Ignore this unit for now. 7375dae5fd2SEldad Zack */ 7385dae5fd2SEldad Zack return 0; 7395dae5fd2SEldad Zack } 7405dae5fd2SEldad Zack 74123caaf19SDaniel Mack if (d->bNrInPins) { 74223caaf19SDaniel Mack id = d->baSourceID[0]; 74323caaf19SDaniel Mack break; /* continue to parse */ 74423caaf19SDaniel Mack } 74523caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 74623caaf19SDaniel Mack term->channels = uac_processing_unit_bNrChannels(d); 74723caaf19SDaniel Mack term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); 74823caaf19SDaniel Mack term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); 74923caaf19SDaniel Mack return 0; 75023caaf19SDaniel Mack } 75109414207SDaniel Mack case UAC2_CLOCK_SOURCE: { 75209414207SDaniel Mack struct uac_clock_source_descriptor *d = p1; 75309414207SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 75409414207SDaniel Mack term->id = id; 75509414207SDaniel Mack term->name = d->iClockSource; 75609414207SDaniel Mack return 0; 75709414207SDaniel Mack } 758f0b5e634SDaniel Mack default: 759f0b5e634SDaniel Mack return -ENODEV; 760f0b5e634SDaniel Mack } 761f0b5e634SDaniel Mack } 762f0b5e634SDaniel Mack return -ENODEV; 763f0b5e634SDaniel Mack } 764f0b5e634SDaniel Mack 765f0b5e634SDaniel Mack 766f0b5e634SDaniel Mack /* 767f0b5e634SDaniel Mack * Feature Unit 768f0b5e634SDaniel Mack */ 769f0b5e634SDaniel Mack 770f0b5e634SDaniel Mack /* feature unit control information */ 771f0b5e634SDaniel Mack struct usb_feature_control_info { 772f0b5e634SDaniel Mack const char *name; 773f0b5e634SDaniel Mack unsigned int type; /* control type (mute, volume, etc.) */ 774f0b5e634SDaniel Mack }; 775f0b5e634SDaniel Mack 776f0b5e634SDaniel Mack static struct usb_feature_control_info audio_feature_info[] = { 777f0b5e634SDaniel Mack { "Mute", USB_MIXER_INV_BOOLEAN }, 778f0b5e634SDaniel Mack { "Volume", USB_MIXER_S16 }, 779f0b5e634SDaniel Mack { "Tone Control - Bass", USB_MIXER_S8 }, 780f0b5e634SDaniel Mack { "Tone Control - Mid", USB_MIXER_S8 }, 781f0b5e634SDaniel Mack { "Tone Control - Treble", USB_MIXER_S8 }, 782f0b5e634SDaniel Mack { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ 783f0b5e634SDaniel Mack { "Auto Gain Control", USB_MIXER_BOOLEAN }, 784f0b5e634SDaniel Mack { "Delay Control", USB_MIXER_U16 }, 785f0b5e634SDaniel Mack { "Bass Boost", USB_MIXER_BOOLEAN }, 786f0b5e634SDaniel Mack { "Loudness", USB_MIXER_BOOLEAN }, 7872e0281d1SDaniel Mack /* UAC2 specific */ 7882e0281d1SDaniel Mack { "Input Gain Control", USB_MIXER_U16 }, 7892e0281d1SDaniel Mack { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, 7902e0281d1SDaniel Mack { "Phase Inverter Control", USB_MIXER_BOOLEAN }, 791f0b5e634SDaniel Mack }; 792f0b5e634SDaniel Mack 793f0b5e634SDaniel Mack 794f0b5e634SDaniel Mack /* private_free callback */ 795f0b5e634SDaniel Mack static void usb_mixer_elem_free(struct snd_kcontrol *kctl) 796f0b5e634SDaniel Mack { 797f0b5e634SDaniel Mack kfree(kctl->private_data); 798f0b5e634SDaniel Mack kctl->private_data = NULL; 799f0b5e634SDaniel Mack } 800f0b5e634SDaniel Mack 801f0b5e634SDaniel Mack 802f0b5e634SDaniel Mack /* 803f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 804f0b5e634SDaniel Mack */ 805f0b5e634SDaniel Mack 806dcaaf9f2STakashi Iwai /* volume control quirks */ 807dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 808dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 809dcaaf9f2STakashi Iwai { 810dcaaf9f2STakashi Iwai switch (cval->mixer->chip->usb_id) { 811d50ed624SEldad Zack case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ 812e9a25e04SMatt Gruskin case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ 813d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Duration") == 0) { 814d50ed624SEldad Zack cval->min = 0x0000; 815d50ed624SEldad Zack cval->max = 0xffff; 816d50ed624SEldad Zack cval->res = 0x00e6; 817d50ed624SEldad Zack break; 818d50ed624SEldad Zack } 819d50ed624SEldad Zack if (strcmp(kctl->id.name, "Effect Volume") == 0 || 820d50ed624SEldad Zack strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 821d50ed624SEldad Zack cval->min = 0x00; 822d50ed624SEldad Zack cval->max = 0xff; 823d50ed624SEldad Zack break; 824d50ed624SEldad Zack } 825d50ed624SEldad Zack if (strstr(kctl->id.name, "Effect Return") != NULL) { 826d50ed624SEldad Zack cval->min = 0xb706; 827d50ed624SEldad Zack cval->max = 0xff7b; 828d50ed624SEldad Zack cval->res = 0x0073; 829d50ed624SEldad Zack break; 830d50ed624SEldad Zack } 831d50ed624SEldad Zack if ((strstr(kctl->id.name, "Playback Volume") != NULL) || 832d50ed624SEldad Zack (strstr(kctl->id.name, "Effect Send") != NULL)) { 833d50ed624SEldad Zack cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ 834d50ed624SEldad Zack cval->max = 0xfcfe; 835d50ed624SEldad Zack cval->res = 0x0073; 836d50ed624SEldad Zack } 837d50ed624SEldad Zack break; 838d50ed624SEldad Zack 839d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 840d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 841d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 842d34bf148SFelix Homann snd_printk(KERN_INFO 843d34bf148SFelix Homann "usb-audio: set quirk for FTU Effect Duration\n"); 844d34bf148SFelix Homann cval->min = 0x0000; 845d34bf148SFelix Homann cval->max = 0x7f00; 846d34bf148SFelix Homann cval->res = 0x0100; 847d34bf148SFelix Homann break; 848d34bf148SFelix Homann } 849d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 850d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 851d34bf148SFelix Homann snd_printk(KERN_INFO 852d34bf148SFelix Homann "usb-audio: set quirks for FTU Effect Feedback/Volume\n"); 853d34bf148SFelix Homann cval->min = 0x00; 854d34bf148SFelix Homann cval->max = 0x7f; 855d34bf148SFelix Homann break; 856d34bf148SFelix Homann } 857d34bf148SFelix Homann break; 858d34bf148SFelix Homann 859dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 860dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 861dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 862dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 863dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 864dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 865dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 866dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 867dcaaf9f2STakashi Iwai */ 868dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 869dcaaf9f2STakashi Iwai cval->min == -15616) { 870dcaaf9f2STakashi Iwai snd_printk(KERN_INFO 871dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 872dcaaf9f2STakashi Iwai cval->max = -256; 873dcaaf9f2STakashi Iwai } 874dcaaf9f2STakashi Iwai break; 875dcaaf9f2STakashi Iwai 876dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 877dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 878dcaaf9f2STakashi Iwai snd_printk(KERN_INFO 879dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 880dcaaf9f2STakashi Iwai cval->min = 6080; 881dcaaf9f2STakashi Iwai cval->max = 8768; 882dcaaf9f2STakashi Iwai cval->res = 192; 883dcaaf9f2STakashi Iwai } 884dcaaf9f2STakashi Iwai break; 885dcaaf9f2STakashi Iwai 886e805ca8bSTakashi Iwai case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ 887dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 888dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 88936691e1bSTakashi Iwai case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ 89055c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 89111e7064fSTakashi Iwai case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ 892140d37deSMaksim A. Boyko case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ 893dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 894dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 895dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 896dcaaf9f2STakashi Iwai * Proboly there is some logitech magic behind this number --fishor 897dcaaf9f2STakashi Iwai */ 898dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 899dcaaf9f2STakashi Iwai snd_printk(KERN_INFO 900dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 901dcaaf9f2STakashi Iwai cval->res = 384; 902dcaaf9f2STakashi Iwai } 903dcaaf9f2STakashi Iwai break; 904dcaaf9f2STakashi Iwai 905dcaaf9f2STakashi Iwai } 906dcaaf9f2STakashi Iwai } 907dcaaf9f2STakashi Iwai 908f0b5e634SDaniel Mack /* 909f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 910f0b5e634SDaniel Mack */ 911dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 912dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 913f0b5e634SDaniel Mack { 914f0b5e634SDaniel Mack /* for failsafe */ 915f0b5e634SDaniel Mack cval->min = default_min; 916f0b5e634SDaniel Mack cval->max = cval->min + 1; 917f0b5e634SDaniel Mack cval->res = 1; 918f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 919f0b5e634SDaniel Mack 920f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 921f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 922f0b5e634SDaniel Mack cval->initialized = 1; 923f0b5e634SDaniel Mack } else { 924f0b5e634SDaniel Mack int minchn = 0; 925f0b5e634SDaniel Mack if (cval->cmask) { 926f0b5e634SDaniel Mack int i; 927f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 928f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 929f0b5e634SDaniel Mack minchn = i + 1; 930f0b5e634SDaniel Mack break; 931f0b5e634SDaniel Mack } 932f0b5e634SDaniel Mack } 933f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 934f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 935f0b5e634SDaniel Mack snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", 9361a4e34e6STakashi Iwai cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); 937f0b5e634SDaniel Mack return -EINVAL; 938f0b5e634SDaniel Mack } 939f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { 940f0b5e634SDaniel Mack cval->res = 1; 941f0b5e634SDaniel Mack } else { 942f0b5e634SDaniel Mack int last_valid_res = cval->res; 943f0b5e634SDaniel Mack 944f0b5e634SDaniel Mack while (cval->res > 1) { 945f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 946f0b5e634SDaniel Mack (cval->control << 8) | minchn, cval->res / 2) < 0) 947f0b5e634SDaniel Mack break; 948f0b5e634SDaniel Mack cval->res /= 2; 949f0b5e634SDaniel Mack } 950f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) 951f0b5e634SDaniel Mack cval->res = last_valid_res; 952f0b5e634SDaniel Mack } 953f0b5e634SDaniel Mack if (cval->res == 0) 954f0b5e634SDaniel Mack cval->res = 1; 955f0b5e634SDaniel Mack 956f0b5e634SDaniel Mack /* Additional checks for the proper resolution 957f0b5e634SDaniel Mack * 958f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 959f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 960f0b5e634SDaniel Mack * to the lower aligned value. 961f0b5e634SDaniel Mack */ 962f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 963f0b5e634SDaniel Mack int last_valid_res = cval->res; 964f0b5e634SDaniel Mack int saved, test, check; 965f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &saved); 966f0b5e634SDaniel Mack for (;;) { 967f0b5e634SDaniel Mack test = saved; 968f0b5e634SDaniel Mack if (test < cval->max) 969f0b5e634SDaniel Mack test += cval->res; 970f0b5e634SDaniel Mack else 971f0b5e634SDaniel Mack test -= cval->res; 972f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 973f0b5e634SDaniel Mack set_cur_mix_value(cval, minchn, 0, test) || 974f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 975f0b5e634SDaniel Mack cval->res = last_valid_res; 976f0b5e634SDaniel Mack break; 977f0b5e634SDaniel Mack } 978f0b5e634SDaniel Mack if (test == check) 979f0b5e634SDaniel Mack break; 980f0b5e634SDaniel Mack cval->res *= 2; 981f0b5e634SDaniel Mack } 982f0b5e634SDaniel Mack set_cur_mix_value(cval, minchn, 0, saved); 983f0b5e634SDaniel Mack } 984f0b5e634SDaniel Mack 985f0b5e634SDaniel Mack cval->initialized = 1; 986f0b5e634SDaniel Mack } 987f0b5e634SDaniel Mack 988dcaaf9f2STakashi Iwai if (kctl) 989dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 990dcaaf9f2STakashi Iwai 991f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 992f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 993f0b5e634SDaniel Mack */ 994f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 995f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 996f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 997f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 998f0b5e634SDaniel Mack if (cval->dBmin < 0) 999f0b5e634SDaniel Mack cval->dBmax = 0; 1000f0b5e634SDaniel Mack else if (cval->dBmin > 0) 1001f0b5e634SDaniel Mack cval->dBmin = 0; 1002f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 1003f0b5e634SDaniel Mack /* totally crap, return an error */ 1004f0b5e634SDaniel Mack return -EINVAL; 1005f0b5e634SDaniel Mack } 1006f0b5e634SDaniel Mack } 1007f0b5e634SDaniel Mack 1008f0b5e634SDaniel Mack return 0; 1009f0b5e634SDaniel Mack } 1010f0b5e634SDaniel Mack 1011dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 1012f0b5e634SDaniel Mack 1013f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 1014f0b5e634SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1015f0b5e634SDaniel Mack { 1016f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1017f0b5e634SDaniel Mack 1018f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1019f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 1020f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1021f0b5e634SDaniel Mack else 1022f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1023f0b5e634SDaniel Mack uinfo->count = cval->channels; 1024f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 1025f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 1026f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1027f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 1028f0b5e634SDaniel Mack } else { 10299fcd0ab1STakashi Iwai if (!cval->initialized) { 1030dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 10319fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 10329fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 10339fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 10349fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 10359fcd0ab1STakashi Iwai snd_ctl_notify(cval->mixer->chip->card, 10369fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 10379fcd0ab1STakashi Iwai &kcontrol->id); 10389fcd0ab1STakashi Iwai } 10399fcd0ab1STakashi Iwai } 1040f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 1041f0b5e634SDaniel Mack uinfo->value.integer.max = 1042f0b5e634SDaniel Mack (cval->max - cval->min + cval->res - 1) / cval->res; 1043f0b5e634SDaniel Mack } 1044f0b5e634SDaniel Mack return 0; 1045f0b5e634SDaniel Mack } 1046f0b5e634SDaniel Mack 1047f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 1048f0b5e634SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1049f0b5e634SDaniel Mack { 1050f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1051f0b5e634SDaniel Mack int c, cnt, val, err; 1052f0b5e634SDaniel Mack 1053f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1054f0b5e634SDaniel Mack if (cval->cmask) { 1055f0b5e634SDaniel Mack cnt = 0; 1056f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1057f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1058f0b5e634SDaniel Mack continue; 1059f0b5e634SDaniel Mack err = get_cur_mix_value(cval, c + 1, cnt, &val); 1060f0b5e634SDaniel Mack if (err < 0) 1061f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1062f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1063f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 1064f0b5e634SDaniel Mack cnt++; 1065f0b5e634SDaniel Mack } 1066f0b5e634SDaniel Mack return 0; 1067f0b5e634SDaniel Mack } else { 1068f0b5e634SDaniel Mack /* master channel */ 1069f0b5e634SDaniel Mack err = get_cur_mix_value(cval, 0, 0, &val); 1070f0b5e634SDaniel Mack if (err < 0) 1071f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1072f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1073f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1074f0b5e634SDaniel Mack } 1075f0b5e634SDaniel Mack return 0; 1076f0b5e634SDaniel Mack } 1077f0b5e634SDaniel Mack 1078f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 1079f0b5e634SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1080f0b5e634SDaniel Mack { 1081f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1082f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1083f0b5e634SDaniel Mack int changed = 0; 1084f0b5e634SDaniel Mack 1085f0b5e634SDaniel Mack if (cval->cmask) { 1086f0b5e634SDaniel Mack cnt = 0; 1087f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1088f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1089f0b5e634SDaniel Mack continue; 1090f0b5e634SDaniel Mack err = get_cur_mix_value(cval, c + 1, cnt, &oval); 1091f0b5e634SDaniel Mack if (err < 0) 1092f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1093f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1094f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1095f0b5e634SDaniel Mack if (oval != val) { 1096f0b5e634SDaniel Mack set_cur_mix_value(cval, c + 1, cnt, val); 1097f0b5e634SDaniel Mack changed = 1; 1098f0b5e634SDaniel Mack } 1099f0b5e634SDaniel Mack cnt++; 1100f0b5e634SDaniel Mack } 1101f0b5e634SDaniel Mack } else { 1102f0b5e634SDaniel Mack /* master channel */ 1103f0b5e634SDaniel Mack err = get_cur_mix_value(cval, 0, 0, &oval); 1104f0b5e634SDaniel Mack if (err < 0) 1105f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1106f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1107f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1108f0b5e634SDaniel Mack if (val != oval) { 1109f0b5e634SDaniel Mack set_cur_mix_value(cval, 0, 0, val); 1110f0b5e634SDaniel Mack changed = 1; 1111f0b5e634SDaniel Mack } 1112f0b5e634SDaniel Mack } 1113f0b5e634SDaniel Mack return changed; 1114f0b5e634SDaniel Mack } 1115f0b5e634SDaniel Mack 1116f0b5e634SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl = { 1117f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1118f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1119f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1120f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1121f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1122f0b5e634SDaniel Mack }; 1123f0b5e634SDaniel Mack 112423caaf19SDaniel Mack /* the read-only variant */ 112523caaf19SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 112623caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 112723caaf19SDaniel Mack .name = "", /* will be filled later manually */ 112823caaf19SDaniel Mack .info = mixer_ctl_feature_info, 112923caaf19SDaniel Mack .get = mixer_ctl_feature_get, 113023caaf19SDaniel Mack .put = NULL, 113123caaf19SDaniel Mack }; 113223caaf19SDaniel Mack 11339e38658fSDaniel Mack /* This symbol is exported in order to allow the mixer quirks to 11349e38658fSDaniel Mack * hook up to the standard feature unit control mechanism */ 11359e38658fSDaniel Mack struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1136f0b5e634SDaniel Mack 1137f0b5e634SDaniel Mack /* 1138f0b5e634SDaniel Mack * build a feature control 1139f0b5e634SDaniel Mack */ 1140f0b5e634SDaniel Mack 1141f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1142f0b5e634SDaniel Mack { 1143f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1144f0b5e634SDaniel Mack } 1145f0b5e634SDaniel Mack 11469b4ef977SDavid Henningsson /* A lot of headsets/headphones have a "Speaker" mixer. Make sure we 11479b4ef977SDavid Henningsson rename it to "Headphone". We determine if something is a headphone 11489b4ef977SDavid Henningsson similar to how udev determines form factor. */ 11499b4ef977SDavid Henningsson static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, 11509b4ef977SDavid Henningsson struct snd_card *card) 11519b4ef977SDavid Henningsson { 11529b4ef977SDavid Henningsson const char *names_to_check[] = { 11539b4ef977SDavid Henningsson "Headset", "headset", "Headphone", "headphone", NULL}; 11549b4ef977SDavid Henningsson const char **s; 1155e0f17c75SPeter Senna Tschudin bool found = false; 11569b4ef977SDavid Henningsson 11579b4ef977SDavid Henningsson if (strcmp("Speaker", kctl->id.name)) 11589b4ef977SDavid Henningsson return; 11599b4ef977SDavid Henningsson 11609b4ef977SDavid Henningsson for (s = names_to_check; *s; s++) 11619b4ef977SDavid Henningsson if (strstr(card->shortname, *s)) { 1162e0f17c75SPeter Senna Tschudin found = true; 11639b4ef977SDavid Henningsson break; 11649b4ef977SDavid Henningsson } 11659b4ef977SDavid Henningsson 11669b4ef977SDavid Henningsson if (!found) 11679b4ef977SDavid Henningsson return; 11689b4ef977SDavid Henningsson 11699b4ef977SDavid Henningsson strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); 11709b4ef977SDavid Henningsson } 11719b4ef977SDavid Henningsson 117299fc8645SDaniel Mack static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 1173f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 117423caaf19SDaniel Mack struct usb_audio_term *iterm, int unitid, 1175a6a33259SDaniel Mack int readonly_mask) 1176f0b5e634SDaniel Mack { 117799fc8645SDaniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 1178f0b5e634SDaniel Mack unsigned int len = 0; 1179f0b5e634SDaniel Mack int mapped_name = 0; 118099fc8645SDaniel Mack int nameid = uac_feature_unit_iFeature(desc); 1181f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1182f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1183f0b5e634SDaniel Mack const struct usbmix_name_map *map; 118480acefffSAlexey Fisher unsigned int range; 1185f0b5e634SDaniel Mack 1186f0b5e634SDaniel Mack control++; /* change from zero-based to 1-based value */ 1187f0b5e634SDaniel Mack 118865f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1189f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1190f0b5e634SDaniel Mack return; 1191f0b5e634SDaniel Mack } 1192f0b5e634SDaniel Mack 1193f0b5e634SDaniel Mack map = find_map(state, unitid, control); 1194f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1195f0b5e634SDaniel Mack return; 1196f0b5e634SDaniel Mack 1197f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1198f0b5e634SDaniel Mack if (! cval) { 1199f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1200f0b5e634SDaniel Mack return; 1201f0b5e634SDaniel Mack } 1202f0b5e634SDaniel Mack cval->mixer = state->mixer; 1203f0b5e634SDaniel Mack cval->id = unitid; 1204f0b5e634SDaniel Mack cval->control = control; 1205f0b5e634SDaniel Mack cval->cmask = ctl_mask; 1206f0b5e634SDaniel Mack cval->val_type = audio_feature_info[control-1].type; 1207a6a33259SDaniel Mack if (ctl_mask == 0) { 1208f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1209a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1210a6a33259SDaniel Mack } else { 1211f0b5e634SDaniel Mack int i, c = 0; 1212f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1213f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1214f0b5e634SDaniel Mack c++; 1215f0b5e634SDaniel Mack cval->channels = c; 1216a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1217f0b5e634SDaniel Mack } 1218f0b5e634SDaniel Mack 1219a6a33259SDaniel Mack /* if all channels in the mask are marked read-only, make the control 1220a6a33259SDaniel Mack * read-only. set_cur_mix_value() will check the mask again and won't 1221a6a33259SDaniel Mack * issue write commands to read-only channels. */ 1222a6a33259SDaniel Mack if (cval->channels == readonly_mask) 122323caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 122423caaf19SDaniel Mack else 1225f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 122623caaf19SDaniel Mack 1227f0b5e634SDaniel Mack if (! kctl) { 1228f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1229f0b5e634SDaniel Mack kfree(cval); 1230f0b5e634SDaniel Mack return; 1231f0b5e634SDaniel Mack } 1232f0b5e634SDaniel Mack kctl->private_free = usb_mixer_elem_free; 1233f0b5e634SDaniel Mack 1234f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1235f0b5e634SDaniel Mack mapped_name = len != 0; 1236f0b5e634SDaniel Mack if (! len && nameid) 1237f0b5e634SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, 1238f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1239f0b5e634SDaniel Mack 1240f0b5e634SDaniel Mack switch (control) { 124165f25da4SDaniel Mack case UAC_FU_MUTE: 124265f25da4SDaniel Mack case UAC_FU_VOLUME: 1243f0b5e634SDaniel Mack /* determine the control name. the rule is: 1244f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1245f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1246f0b5e634SDaniel Mack * of terminal type. 1247f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1248f0b5e634SDaniel Mack * - otherwise, anonymous name. 1249f0b5e634SDaniel Mack */ 1250f0b5e634SDaniel Mack if (! len) { 1251f0b5e634SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); 1252f0b5e634SDaniel Mack if (! len) 1253f0b5e634SDaniel Mack len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); 1254f0b5e634SDaniel Mack if (! len) 1255f0b5e634SDaniel Mack len = snprintf(kctl->id.name, sizeof(kctl->id.name), 1256f0b5e634SDaniel Mack "Feature %d", unitid); 1257f0b5e634SDaniel Mack } 12589b4ef977SDavid Henningsson 12599b4ef977SDavid Henningsson if (!mapped_name) 12609b4ef977SDavid Henningsson check_no_speaker_on_headset(kctl, state->mixer->chip->card); 12619b4ef977SDavid Henningsson 1262f0b5e634SDaniel Mack /* determine the stream direction: 1263f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1264f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1265f0b5e634SDaniel Mack */ 1266f0b5e634SDaniel Mack if (! mapped_name && ! (state->oterm.type >> 16)) { 1267f0b5e634SDaniel Mack if ((state->oterm.type & 0xff00) == 0x0100) { 1268f0b5e634SDaniel Mack len = append_ctl_name(kctl, " Capture"); 1269f0b5e634SDaniel Mack } else { 1270f0b5e634SDaniel Mack len = append_ctl_name(kctl, " Playback"); 1271f0b5e634SDaniel Mack } 1272f0b5e634SDaniel Mack } 127365f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1274f0b5e634SDaniel Mack " Switch" : " Volume"); 1275e182534dSTakashi Iwai break; 1276e182534dSTakashi Iwai default: 1277e182534dSTakashi Iwai if (! len) 1278e182534dSTakashi Iwai strlcpy(kctl->id.name, audio_feature_info[control-1].name, 1279e182534dSTakashi Iwai sizeof(kctl->id.name)); 1280e182534dSTakashi Iwai break; 1281e182534dSTakashi Iwai } 1282e182534dSTakashi Iwai 1283e182534dSTakashi Iwai /* get min/max values */ 1284e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1285e182534dSTakashi Iwai 128665f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 128759bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 128838b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1289285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1290f0b5e634SDaniel Mack kctl->vd[0].access |= 1291f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1292f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 129359bb7f0eSTakashi Iwai } 1294f0b5e634SDaniel Mack } 1295f0b5e634SDaniel Mack 129680acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 129780acefffSAlexey Fisher /* Are there devices with volume range more than 255? I use a bit more 129880acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 129980acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 130080acefffSAlexey Fisher */ 130180acefffSAlexey Fisher if (range > 384) { 130280acefffSAlexey Fisher snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big " 130380acefffSAlexey Fisher "volume range (=%u), cval->res is probably wrong.", 130480acefffSAlexey Fisher range); 130580acefffSAlexey Fisher snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, " 130680acefffSAlexey Fisher "val = %d/%d/%d", cval->id, 130780acefffSAlexey Fisher kctl->id.name, cval->channels, 130880acefffSAlexey Fisher cval->min, cval->max, cval->res); 130980acefffSAlexey Fisher } 131080acefffSAlexey Fisher 1311f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 1312f0b5e634SDaniel Mack cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); 1313ef9d5970SDaniel Mack snd_usb_mixer_add_control(state->mixer, kctl); 1314f0b5e634SDaniel Mack } 1315f0b5e634SDaniel Mack 1316f0b5e634SDaniel Mack 1317f0b5e634SDaniel Mack 1318f0b5e634SDaniel Mack /* 1319f0b5e634SDaniel Mack * parse a feature unit 1320f0b5e634SDaniel Mack * 132125985edcSLucas De Marchi * most of controls are defined here. 1322f0b5e634SDaniel Mack */ 1323f0b5e634SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) 1324f0b5e634SDaniel Mack { 1325f0b5e634SDaniel Mack int channels, i, j; 1326f0b5e634SDaniel Mack struct usb_audio_term iterm; 1327f0b5e634SDaniel Mack unsigned int master_bits, first_ch_bits; 1328f0b5e634SDaniel Mack int err, csize; 132923caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 133023caaf19SDaniel Mack __u8 *bmaControls; 1331f0b5e634SDaniel Mack 133223caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 133323caaf19SDaniel Mack csize = hdr->bControlSize; 133460c961a9SNicolai Krakowiak if (!csize) { 133560c961a9SNicolai Krakowiak snd_printdd(KERN_ERR "usbaudio: unit %u: " 133660c961a9SNicolai Krakowiak "invalid bControlSize == 0\n", unitid); 133760c961a9SNicolai Krakowiak return -EINVAL; 133860c961a9SNicolai Krakowiak } 133923caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 134023caaf19SDaniel Mack bmaControls = hdr->bmaControls; 1341d56268fbSClemens Ladisch if (hdr->bLength < 7 + csize) { 1342d56268fbSClemens Ladisch snd_printk(KERN_ERR "usbaudio: unit %u: " 1343d56268fbSClemens Ladisch "invalid UAC_FEATURE_UNIT descriptor\n", 1344d56268fbSClemens Ladisch unitid); 1345d56268fbSClemens Ladisch return -EINVAL; 1346d56268fbSClemens Ladisch } 134723caaf19SDaniel Mack } else { 134823caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 134923caaf19SDaniel Mack csize = 4; 1350e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 135123caaf19SDaniel Mack bmaControls = ftr->bmaControls; 1352d56268fbSClemens Ladisch if (hdr->bLength < 6 + csize) { 1353d56268fbSClemens Ladisch snd_printk(KERN_ERR "usbaudio: unit %u: " 1354d56268fbSClemens Ladisch "invalid UAC_FEATURE_UNIT descriptor\n", 1355d56268fbSClemens Ladisch unitid); 1356f0b5e634SDaniel Mack return -EINVAL; 1357f0b5e634SDaniel Mack } 1358d56268fbSClemens Ladisch } 1359f0b5e634SDaniel Mack 1360f0b5e634SDaniel Mack /* parse the source unit */ 136123caaf19SDaniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 1362f0b5e634SDaniel Mack return err; 1363f0b5e634SDaniel Mack 1364f0b5e634SDaniel Mack /* determine the input source type and name */ 13654d7b86c9SDaniel Mack err = check_input_term(state, hdr->bSourceID, &iterm); 13664d7b86c9SDaniel Mack if (err < 0) 13674d7b86c9SDaniel Mack return err; 1368f0b5e634SDaniel Mack 136923caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 1370f0b5e634SDaniel Mack /* master configuration quirks */ 1371f0b5e634SDaniel Mack switch (state->chip->usb_id) { 1372f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 1373f0b5e634SDaniel Mack snd_printk(KERN_INFO 1374f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 1375f0b5e634SDaniel Mack /* disable non-functional volume control */ 137665f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 1377f0b5e634SDaniel Mack break; 1378c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 1379c1051439SDavid Henningsson snd_printk(KERN_INFO 1380c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 1381c1051439SDavid Henningsson /* disable non-functional volume control */ 1382c1051439SDavid Henningsson channels = 0; 1383c1051439SDavid Henningsson break; 1384c1051439SDavid Henningsson 1385f0b5e634SDaniel Mack } 1386f0b5e634SDaniel Mack if (channels > 0) 138723caaf19SDaniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 1388f0b5e634SDaniel Mack else 1389f0b5e634SDaniel Mack first_ch_bits = 0; 139023caaf19SDaniel Mack 139123caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1392f0b5e634SDaniel Mack /* check all control types */ 1393f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 1394f0b5e634SDaniel Mack unsigned int ch_bits = 0; 1395f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 139623caaf19SDaniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1397f0b5e634SDaniel Mack if (mask & (1 << i)) 1398f0b5e634SDaniel Mack ch_bits |= (1 << j); 1399f0b5e634SDaniel Mack } 140023caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 1401f0b5e634SDaniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 140223caaf19SDaniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); 1403f0b5e634SDaniel Mack if (master_bits & (1 << i)) 140423caaf19SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); 140523caaf19SDaniel Mack } 140623caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 1407d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 140823caaf19SDaniel Mack unsigned int ch_bits = 0; 140923caaf19SDaniel Mack unsigned int ch_read_only = 0; 141023caaf19SDaniel Mack 141123caaf19SDaniel Mack for (j = 0; j < channels; j++) { 141223caaf19SDaniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1413dcbe7bcfSDaniel Mack if (uac2_control_is_readable(mask, i)) { 141423caaf19SDaniel Mack ch_bits |= (1 << j); 1415dcbe7bcfSDaniel Mack if (!uac2_control_is_writeable(mask, i)) 141623caaf19SDaniel Mack ch_read_only |= (1 << j); 141723caaf19SDaniel Mack } 141823caaf19SDaniel Mack } 141923caaf19SDaniel Mack 1420a6a33259SDaniel Mack /* NOTE: build_feature_ctl() will mark the control read-only if all channels 1421a6a33259SDaniel Mack * are marked read-only in the descriptors. Otherwise, the control will be 1422a6a33259SDaniel Mack * reported as writeable, but the driver will not actually issue a write 1423a6a33259SDaniel Mack * command for read-only channels */ 142423caaf19SDaniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 1425a6a33259SDaniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); 1426dcbe7bcfSDaniel Mack if (uac2_control_is_readable(master_bits, i)) 142723caaf19SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 1428dcbe7bcfSDaniel Mack !uac2_control_is_writeable(master_bits, i)); 142923caaf19SDaniel Mack } 1430f0b5e634SDaniel Mack } 1431f0b5e634SDaniel Mack 1432f0b5e634SDaniel Mack return 0; 1433f0b5e634SDaniel Mack } 1434f0b5e634SDaniel Mack 1435f0b5e634SDaniel Mack 1436f0b5e634SDaniel Mack /* 1437f0b5e634SDaniel Mack * Mixer Unit 1438f0b5e634SDaniel Mack */ 1439f0b5e634SDaniel Mack 1440f0b5e634SDaniel Mack /* 1441f0b5e634SDaniel Mack * build a mixer unit control 1442f0b5e634SDaniel Mack * 1443f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 1444f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 1445f0b5e634SDaniel Mack */ 1446f0b5e634SDaniel Mack 144799fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 144899fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 1449f0b5e634SDaniel Mack int in_pin, int in_ch, int unitid, 1450f0b5e634SDaniel Mack struct usb_audio_term *iterm) 1451f0b5e634SDaniel Mack { 1452f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 145399fc8645SDaniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 1454f0b5e634SDaniel Mack unsigned int i, len; 1455f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1456f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1457f0b5e634SDaniel Mack 1458f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 1459f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1460f0b5e634SDaniel Mack return; 1461f0b5e634SDaniel Mack 1462f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1463f0b5e634SDaniel Mack if (! cval) 1464f0b5e634SDaniel Mack return; 1465f0b5e634SDaniel Mack 1466f0b5e634SDaniel Mack cval->mixer = state->mixer; 1467f0b5e634SDaniel Mack cval->id = unitid; 1468f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 1469f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 1470f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 147123caaf19SDaniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { 1472f0b5e634SDaniel Mack cval->cmask |= (1 << i); 1473f0b5e634SDaniel Mack cval->channels++; 1474f0b5e634SDaniel Mack } 1475f0b5e634SDaniel Mack } 1476f0b5e634SDaniel Mack 1477f0b5e634SDaniel Mack /* get min/max values */ 1478f0b5e634SDaniel Mack get_min_max(cval, 0); 1479f0b5e634SDaniel Mack 1480f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1481f0b5e634SDaniel Mack if (! kctl) { 1482f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1483f0b5e634SDaniel Mack kfree(cval); 1484f0b5e634SDaniel Mack return; 1485f0b5e634SDaniel Mack } 1486f0b5e634SDaniel Mack kctl->private_free = usb_mixer_elem_free; 1487f0b5e634SDaniel Mack 1488f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1489f0b5e634SDaniel Mack if (! len) 1490f0b5e634SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); 1491f0b5e634SDaniel Mack if (! len) 1492f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 1493f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 1494f0b5e634SDaniel Mack 1495f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", 1496f0b5e634SDaniel Mack cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 1497ef9d5970SDaniel Mack snd_usb_mixer_add_control(state->mixer, kctl); 1498f0b5e634SDaniel Mack } 1499f0b5e634SDaniel Mack 1500f0b5e634SDaniel Mack 1501f0b5e634SDaniel Mack /* 1502f0b5e634SDaniel Mack * parse a mixer unit 1503f0b5e634SDaniel Mack */ 150499fc8645SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) 1505f0b5e634SDaniel Mack { 150699fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 1507f0b5e634SDaniel Mack struct usb_audio_term iterm; 1508f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 1509f0b5e634SDaniel Mack int pin, ich, err; 1510f0b5e634SDaniel Mack 151199fc8645SDaniel Mack if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { 1512f0b5e634SDaniel Mack snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); 1513f0b5e634SDaniel Mack return -EINVAL; 1514f0b5e634SDaniel Mack } 1515f0b5e634SDaniel Mack /* no bmControls field (e.g. Maya44) -> ignore */ 151699fc8645SDaniel Mack if (desc->bLength <= 10 + input_pins) { 1517f0b5e634SDaniel Mack snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); 1518f0b5e634SDaniel Mack return 0; 1519f0b5e634SDaniel Mack } 1520f0b5e634SDaniel Mack 1521f0b5e634SDaniel Mack num_ins = 0; 1522f0b5e634SDaniel Mack ich = 0; 1523f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 152499fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 1525f0b5e634SDaniel Mack if (err < 0) 1526284a8dd6SMark Hills continue; 152799fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 1528f0b5e634SDaniel Mack if (err < 0) 1529f0b5e634SDaniel Mack return err; 1530f0b5e634SDaniel Mack num_ins += iterm.channels; 1531f0b5e634SDaniel Mack for (; ich < num_ins; ++ich) { 1532f0b5e634SDaniel Mack int och, ich_has_controls = 0; 1533f0b5e634SDaniel Mack 1534f0b5e634SDaniel Mack for (och = 0; och < num_outs; ++och) { 153523caaf19SDaniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), 1536f0b5e634SDaniel Mack ich, och, num_outs)) { 1537f0b5e634SDaniel Mack ich_has_controls = 1; 1538f0b5e634SDaniel Mack break; 1539f0b5e634SDaniel Mack } 1540f0b5e634SDaniel Mack } 1541f0b5e634SDaniel Mack if (ich_has_controls) 1542f0b5e634SDaniel Mack build_mixer_unit_ctl(state, desc, pin, ich, 1543f0b5e634SDaniel Mack unitid, &iterm); 1544f0b5e634SDaniel Mack } 1545f0b5e634SDaniel Mack } 1546f0b5e634SDaniel Mack return 0; 1547f0b5e634SDaniel Mack } 1548f0b5e634SDaniel Mack 1549f0b5e634SDaniel Mack 1550f0b5e634SDaniel Mack /* 1551f0b5e634SDaniel Mack * Processing Unit / Extension Unit 1552f0b5e634SDaniel Mack */ 1553f0b5e634SDaniel Mack 1554f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 1555f0b5e634SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1556f0b5e634SDaniel Mack { 1557f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1558f0b5e634SDaniel Mack int err, val; 1559f0b5e634SDaniel Mack 1560f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 1561f0b5e634SDaniel Mack if (err < 0 && cval->mixer->ignore_ctl_error) { 1562f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1563f0b5e634SDaniel Mack return 0; 1564f0b5e634SDaniel Mack } 1565f0b5e634SDaniel Mack if (err < 0) 1566f0b5e634SDaniel Mack return err; 1567f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1568f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1569f0b5e634SDaniel Mack return 0; 1570f0b5e634SDaniel Mack } 1571f0b5e634SDaniel Mack 1572f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 1573f0b5e634SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1574f0b5e634SDaniel Mack { 1575f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1576f0b5e634SDaniel Mack int val, oval, err; 1577f0b5e634SDaniel Mack 1578f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 1579f0b5e634SDaniel Mack if (err < 0) { 1580f0b5e634SDaniel Mack if (cval->mixer->ignore_ctl_error) 1581f0b5e634SDaniel Mack return 0; 1582f0b5e634SDaniel Mack return err; 1583f0b5e634SDaniel Mack } 1584f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1585f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1586f0b5e634SDaniel Mack if (val != oval) { 1587f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 1588f0b5e634SDaniel Mack return 1; 1589f0b5e634SDaniel Mack } 1590f0b5e634SDaniel Mack return 0; 1591f0b5e634SDaniel Mack } 1592f0b5e634SDaniel Mack 1593f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 1594f0b5e634SDaniel Mack static struct snd_kcontrol_new mixer_procunit_ctl = { 1595f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1596f0b5e634SDaniel Mack .name = "", /* will be filled later */ 1597f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1598f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 1599f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 1600f0b5e634SDaniel Mack }; 1601f0b5e634SDaniel Mack 1602f0b5e634SDaniel Mack 1603f0b5e634SDaniel Mack /* 1604f0b5e634SDaniel Mack * predefined data for processing units 1605f0b5e634SDaniel Mack */ 1606f0b5e634SDaniel Mack struct procunit_value_info { 1607f0b5e634SDaniel Mack int control; 1608f0b5e634SDaniel Mack char *suffix; 1609f0b5e634SDaniel Mack int val_type; 1610f0b5e634SDaniel Mack int min_value; 1611f0b5e634SDaniel Mack }; 1612f0b5e634SDaniel Mack 1613f0b5e634SDaniel Mack struct procunit_info { 1614f0b5e634SDaniel Mack int type; 1615f0b5e634SDaniel Mack char *name; 1616f0b5e634SDaniel Mack struct procunit_value_info *values; 1617f0b5e634SDaniel Mack }; 1618f0b5e634SDaniel Mack 1619f0b5e634SDaniel Mack static struct procunit_value_info updown_proc_info[] = { 162065f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 162165f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1622f0b5e634SDaniel Mack { 0 } 1623f0b5e634SDaniel Mack }; 1624f0b5e634SDaniel Mack static struct procunit_value_info prologic_proc_info[] = { 162565f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 162665f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1627f0b5e634SDaniel Mack { 0 } 1628f0b5e634SDaniel Mack }; 1629f0b5e634SDaniel Mack static struct procunit_value_info threed_enh_proc_info[] = { 163065f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 163165f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 1632f0b5e634SDaniel Mack { 0 } 1633f0b5e634SDaniel Mack }; 1634f0b5e634SDaniel Mack static struct procunit_value_info reverb_proc_info[] = { 163565f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 163665f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 163765f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 163865f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 1639f0b5e634SDaniel Mack { 0 } 1640f0b5e634SDaniel Mack }; 1641f0b5e634SDaniel Mack static struct procunit_value_info chorus_proc_info[] = { 164265f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 164365f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 164465f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 164565f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 1646f0b5e634SDaniel Mack { 0 } 1647f0b5e634SDaniel Mack }; 1648f0b5e634SDaniel Mack static struct procunit_value_info dcr_proc_info[] = { 164965f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 165065f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 165165f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 165265f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 165365f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 165465f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 1655f0b5e634SDaniel Mack { 0 } 1656f0b5e634SDaniel Mack }; 1657f0b5e634SDaniel Mack 1658f0b5e634SDaniel Mack static struct procunit_info procunits[] = { 165965f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 166065f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 166165f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 166265f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 166365f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 166465f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 1665f0b5e634SDaniel Mack { 0 }, 1666f0b5e634SDaniel Mack }; 1667f0b5e634SDaniel Mack /* 1668f0b5e634SDaniel Mack * predefined data for extension units 1669f0b5e634SDaniel Mack */ 1670f0b5e634SDaniel Mack static struct procunit_value_info clock_rate_xu_info[] = { 1671f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1672f0b5e634SDaniel Mack { 0 } 1673f0b5e634SDaniel Mack }; 1674f0b5e634SDaniel Mack static struct procunit_value_info clock_source_xu_info[] = { 1675f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 1676f0b5e634SDaniel Mack { 0 } 1677f0b5e634SDaniel Mack }; 1678f0b5e634SDaniel Mack static struct procunit_value_info spdif_format_xu_info[] = { 1679f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 1680f0b5e634SDaniel Mack { 0 } 1681f0b5e634SDaniel Mack }; 1682f0b5e634SDaniel Mack static struct procunit_value_info soft_limit_xu_info[] = { 1683f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 1684f0b5e634SDaniel Mack { 0 } 1685f0b5e634SDaniel Mack }; 1686f0b5e634SDaniel Mack static struct procunit_info extunits[] = { 1687f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 1688f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 1689f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 1690f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 1691f0b5e634SDaniel Mack { 0 } 1692f0b5e634SDaniel Mack }; 1693f0b5e634SDaniel Mack /* 1694f0b5e634SDaniel Mack * build a processing/extension unit 1695f0b5e634SDaniel Mack */ 169699fc8645SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) 1697f0b5e634SDaniel Mack { 169899fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 169999fc8645SDaniel Mack int num_ins = desc->bNrInPins; 1700f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1701f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1702f0b5e634SDaniel Mack int i, err, nameid, type, len; 1703f0b5e634SDaniel Mack struct procunit_info *info; 1704f0b5e634SDaniel Mack struct procunit_value_info *valinfo; 1705f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1706f0b5e634SDaniel Mack static struct procunit_value_info default_value_info[] = { 1707f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 1708f0b5e634SDaniel Mack { 0 } 1709f0b5e634SDaniel Mack }; 1710f0b5e634SDaniel Mack static struct procunit_info default_info = { 1711f0b5e634SDaniel Mack 0, NULL, default_value_info 1712f0b5e634SDaniel Mack }; 1713f0b5e634SDaniel Mack 171423caaf19SDaniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 171523caaf19SDaniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 1716f0b5e634SDaniel Mack snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); 1717f0b5e634SDaniel Mack return -EINVAL; 1718f0b5e634SDaniel Mack } 1719f0b5e634SDaniel Mack 1720f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 172199fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 1722f0b5e634SDaniel Mack return err; 1723f0b5e634SDaniel Mack } 1724f0b5e634SDaniel Mack 172599fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 1726f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 1727f0b5e634SDaniel Mack if (info->type == type) 1728f0b5e634SDaniel Mack break; 1729f0b5e634SDaniel Mack if (! info || ! info->type) 1730f0b5e634SDaniel Mack info = &default_info; 1731f0b5e634SDaniel Mack 1732f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 173323caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 173499fc8645SDaniel Mack 173599fc8645SDaniel Mack if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 1736f0b5e634SDaniel Mack continue; 1737f0b5e634SDaniel Mack map = find_map(state, unitid, valinfo->control); 1738f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1739f0b5e634SDaniel Mack continue; 1740f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1741f0b5e634SDaniel Mack if (! cval) { 1742f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1743f0b5e634SDaniel Mack return -ENOMEM; 1744f0b5e634SDaniel Mack } 1745f0b5e634SDaniel Mack cval->mixer = state->mixer; 1746f0b5e634SDaniel Mack cval->id = unitid; 1747f0b5e634SDaniel Mack cval->control = valinfo->control; 1748f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 1749f0b5e634SDaniel Mack cval->channels = 1; 1750f0b5e634SDaniel Mack 1751f0b5e634SDaniel Mack /* get min/max values */ 175265f25da4SDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 175323caaf19SDaniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 1754f0b5e634SDaniel Mack /* FIXME: hard-coded */ 1755f0b5e634SDaniel Mack cval->min = 1; 175699fc8645SDaniel Mack cval->max = control_spec[0]; 1757f0b5e634SDaniel Mack cval->res = 1; 1758f0b5e634SDaniel Mack cval->initialized = 1; 1759f0b5e634SDaniel Mack } else { 1760f0b5e634SDaniel Mack if (type == USB_XU_CLOCK_RATE) { 17611cdfa9f3SJoseph Teichman /* E-Mu USB 0404/0202/TrackerPre/0204 1762f0b5e634SDaniel Mack * samplerate control quirk 1763f0b5e634SDaniel Mack */ 1764f0b5e634SDaniel Mack cval->min = 0; 1765f0b5e634SDaniel Mack cval->max = 5; 1766f0b5e634SDaniel Mack cval->res = 1; 1767f0b5e634SDaniel Mack cval->initialized = 1; 1768f0b5e634SDaniel Mack } else 1769f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 1770f0b5e634SDaniel Mack } 1771f0b5e634SDaniel Mack 1772f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 1773f0b5e634SDaniel Mack if (! kctl) { 1774f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1775f0b5e634SDaniel Mack kfree(cval); 1776f0b5e634SDaniel Mack return -ENOMEM; 1777f0b5e634SDaniel Mack } 1778f0b5e634SDaniel Mack kctl->private_free = usb_mixer_elem_free; 1779f0b5e634SDaniel Mack 1780f0b5e634SDaniel Mack if (check_mapped_name(map, kctl->id.name, 1781f0b5e634SDaniel Mack sizeof(kctl->id.name))) 1782f0b5e634SDaniel Mack /* nothing */ ; 1783f0b5e634SDaniel Mack else if (info->name) 1784f0b5e634SDaniel Mack strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 1785f0b5e634SDaniel Mack else { 178623caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 1787f0b5e634SDaniel Mack len = 0; 1788f0b5e634SDaniel Mack if (nameid) 1789f0b5e634SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 1790f0b5e634SDaniel Mack if (! len) 1791f0b5e634SDaniel Mack strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 1792f0b5e634SDaniel Mack } 1793f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 1794f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 1795f0b5e634SDaniel Mack 1796f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", 1797f0b5e634SDaniel Mack cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 1798ef9d5970SDaniel Mack if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) 1799f0b5e634SDaniel Mack return err; 1800f0b5e634SDaniel Mack } 1801f0b5e634SDaniel Mack return 0; 1802f0b5e634SDaniel Mack } 1803f0b5e634SDaniel Mack 1804f0b5e634SDaniel Mack 180599fc8645SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) 1806f0b5e634SDaniel Mack { 180799fc8645SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); 1808f0b5e634SDaniel Mack } 1809f0b5e634SDaniel Mack 181099fc8645SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) 1811f0b5e634SDaniel Mack { 181299fc8645SDaniel Mack /* Note that we parse extension units with processing unit descriptors. 181399fc8645SDaniel Mack * That's ok as the layout is the same */ 181499fc8645SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); 1815f0b5e634SDaniel Mack } 1816f0b5e634SDaniel Mack 1817f0b5e634SDaniel Mack 1818f0b5e634SDaniel Mack /* 1819f0b5e634SDaniel Mack * Selector Unit 1820f0b5e634SDaniel Mack */ 1821f0b5e634SDaniel Mack 1822f0b5e634SDaniel Mack /* info callback for selector unit 1823f0b5e634SDaniel Mack * use an enumerator type for routing 1824f0b5e634SDaniel Mack */ 1825f0b5e634SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1826f0b5e634SDaniel Mack { 1827f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 18282a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 1829f0b5e634SDaniel Mack 1830f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 1831f0b5e634SDaniel Mack return -EINVAL; 18322a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 1833f0b5e634SDaniel Mack } 1834f0b5e634SDaniel Mack 1835f0b5e634SDaniel Mack /* get callback for selector unit */ 1836f0b5e634SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1837f0b5e634SDaniel Mack { 1838f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1839f0b5e634SDaniel Mack int val, err; 1840f0b5e634SDaniel Mack 184109414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 1842f0b5e634SDaniel Mack if (err < 0) { 1843f0b5e634SDaniel Mack if (cval->mixer->ignore_ctl_error) { 1844f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 1845f0b5e634SDaniel Mack return 0; 1846f0b5e634SDaniel Mack } 1847f0b5e634SDaniel Mack return err; 1848f0b5e634SDaniel Mack } 1849f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1850f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 1851f0b5e634SDaniel Mack return 0; 1852f0b5e634SDaniel Mack } 1853f0b5e634SDaniel Mack 1854f0b5e634SDaniel Mack /* put callback for selector unit */ 1855f0b5e634SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1856f0b5e634SDaniel Mack { 1857f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1858f0b5e634SDaniel Mack int val, oval, err; 1859f0b5e634SDaniel Mack 186009414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 1861f0b5e634SDaniel Mack if (err < 0) { 1862f0b5e634SDaniel Mack if (cval->mixer->ignore_ctl_error) 1863f0b5e634SDaniel Mack return 0; 1864f0b5e634SDaniel Mack return err; 1865f0b5e634SDaniel Mack } 1866f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 1867f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1868f0b5e634SDaniel Mack if (val != oval) { 186909414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 1870f0b5e634SDaniel Mack return 1; 1871f0b5e634SDaniel Mack } 1872f0b5e634SDaniel Mack return 0; 1873f0b5e634SDaniel Mack } 1874f0b5e634SDaniel Mack 1875f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 1876f0b5e634SDaniel Mack static struct snd_kcontrol_new mixer_selectunit_ctl = { 1877f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1878f0b5e634SDaniel Mack .name = "", /* will be filled later */ 1879f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 1880f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 1881f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 1882f0b5e634SDaniel Mack }; 1883f0b5e634SDaniel Mack 1884f0b5e634SDaniel Mack 1885f0b5e634SDaniel Mack /* private free callback. 1886f0b5e634SDaniel Mack * free both private_data and private_value 1887f0b5e634SDaniel Mack */ 1888f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 1889f0b5e634SDaniel Mack { 1890f0b5e634SDaniel Mack int i, num_ins = 0; 1891f0b5e634SDaniel Mack 1892f0b5e634SDaniel Mack if (kctl->private_data) { 1893f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 1894f0b5e634SDaniel Mack num_ins = cval->max; 1895f0b5e634SDaniel Mack kfree(cval); 1896f0b5e634SDaniel Mack kctl->private_data = NULL; 1897f0b5e634SDaniel Mack } 1898f0b5e634SDaniel Mack if (kctl->private_value) { 1899f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 1900f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 1901f0b5e634SDaniel Mack kfree(itemlist[i]); 1902f0b5e634SDaniel Mack kfree(itemlist); 1903f0b5e634SDaniel Mack kctl->private_value = 0; 1904f0b5e634SDaniel Mack } 1905f0b5e634SDaniel Mack } 1906f0b5e634SDaniel Mack 1907f0b5e634SDaniel Mack /* 1908f0b5e634SDaniel Mack * parse a selector unit 1909f0b5e634SDaniel Mack */ 191099fc8645SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) 1911f0b5e634SDaniel Mack { 191299fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 1913f0b5e634SDaniel Mack unsigned int i, nameid, len; 1914f0b5e634SDaniel Mack int err; 1915f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1916f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1917f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1918f0b5e634SDaniel Mack char **namelist; 1919f0b5e634SDaniel Mack 192099fc8645SDaniel Mack if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { 1921f0b5e634SDaniel Mack snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); 1922f0b5e634SDaniel Mack return -EINVAL; 1923f0b5e634SDaniel Mack } 1924f0b5e634SDaniel Mack 192599fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 192699fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 1927f0b5e634SDaniel Mack return err; 1928f0b5e634SDaniel Mack } 1929f0b5e634SDaniel Mack 193099fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 1931f0b5e634SDaniel Mack return 0; 1932f0b5e634SDaniel Mack 1933f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 1934f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1935f0b5e634SDaniel Mack return 0; 1936f0b5e634SDaniel Mack 1937f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1938f0b5e634SDaniel Mack if (! cval) { 1939f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1940f0b5e634SDaniel Mack return -ENOMEM; 1941f0b5e634SDaniel Mack } 1942f0b5e634SDaniel Mack cval->mixer = state->mixer; 1943f0b5e634SDaniel Mack cval->id = unitid; 1944f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 1945f0b5e634SDaniel Mack cval->channels = 1; 1946f0b5e634SDaniel Mack cval->min = 1; 194799fc8645SDaniel Mack cval->max = desc->bNrInPins; 1948f0b5e634SDaniel Mack cval->res = 1; 1949f0b5e634SDaniel Mack cval->initialized = 1; 1950f0b5e634SDaniel Mack 195109414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 195209414207SDaniel Mack cval->control = UAC2_CX_CLOCK_SELECTOR; 195309414207SDaniel Mack else 195409414207SDaniel Mack cval->control = 0; 195509414207SDaniel Mack 195699fc8645SDaniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 1957f0b5e634SDaniel Mack if (! namelist) { 1958f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc\n"); 1959f0b5e634SDaniel Mack kfree(cval); 1960f0b5e634SDaniel Mack return -ENOMEM; 1961f0b5e634SDaniel Mack } 1962f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 196399fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 1964f0b5e634SDaniel Mack struct usb_audio_term iterm; 1965f0b5e634SDaniel Mack len = 0; 1966f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 1967f0b5e634SDaniel Mack if (! namelist[i]) { 1968f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc\n"); 1969f0b5e634SDaniel Mack while (i--) 1970f0b5e634SDaniel Mack kfree(namelist[i]); 1971f0b5e634SDaniel Mack kfree(namelist); 1972f0b5e634SDaniel Mack kfree(cval); 1973f0b5e634SDaniel Mack return -ENOMEM; 1974f0b5e634SDaniel Mack } 1975f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 1976f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 197799fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 1978f0b5e634SDaniel Mack len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 1979f0b5e634SDaniel Mack if (! len) 1980f0b5e634SDaniel Mack sprintf(namelist[i], "Input %d", i); 1981f0b5e634SDaniel Mack } 1982f0b5e634SDaniel Mack 1983f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 1984f0b5e634SDaniel Mack if (! kctl) { 1985f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1986f0b5e634SDaniel Mack kfree(namelist); 1987f0b5e634SDaniel Mack kfree(cval); 1988f0b5e634SDaniel Mack return -ENOMEM; 1989f0b5e634SDaniel Mack } 1990f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 1991f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 1992f0b5e634SDaniel Mack 199399fc8645SDaniel Mack nameid = uac_selector_unit_iSelector(desc); 1994f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1995f0b5e634SDaniel Mack if (len) 1996f0b5e634SDaniel Mack ; 1997f0b5e634SDaniel Mack else if (nameid) 1998f0b5e634SDaniel Mack snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 1999f0b5e634SDaniel Mack else { 2000f0b5e634SDaniel Mack len = get_term_name(state, &state->oterm, 2001f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 2002f0b5e634SDaniel Mack if (! len) 2003f0b5e634SDaniel Mack strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 2004f0b5e634SDaniel Mack 200509414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 200609414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 200709414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 2008f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 2009f0b5e634SDaniel Mack else 2010f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 2011f0b5e634SDaniel Mack } 2012f0b5e634SDaniel Mack 2013f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", 201499fc8645SDaniel Mack cval->id, kctl->id.name, desc->bNrInPins); 2015ef9d5970SDaniel Mack if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) 2016f0b5e634SDaniel Mack return err; 2017f0b5e634SDaniel Mack 2018f0b5e634SDaniel Mack return 0; 2019f0b5e634SDaniel Mack } 2020f0b5e634SDaniel Mack 2021f0b5e634SDaniel Mack 2022f0b5e634SDaniel Mack /* 2023f0b5e634SDaniel Mack * parse an audio unit recursively 2024f0b5e634SDaniel Mack */ 2025f0b5e634SDaniel Mack 2026f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 2027f0b5e634SDaniel Mack { 2028f0b5e634SDaniel Mack unsigned char *p1; 2029f0b5e634SDaniel Mack 2030f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 2031f0b5e634SDaniel Mack return 0; /* the unit already visited */ 2032f0b5e634SDaniel Mack 2033f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 2034f0b5e634SDaniel Mack if (!p1) { 2035f0b5e634SDaniel Mack snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); 2036f0b5e634SDaniel Mack return -EINVAL; 2037f0b5e634SDaniel Mack } 2038f0b5e634SDaniel Mack 2039f0b5e634SDaniel Mack switch (p1[2]) { 2040f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 204109414207SDaniel Mack case UAC2_CLOCK_SOURCE: 2042f0b5e634SDaniel Mack return 0; /* NOP */ 2043f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 2044f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 2045f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 204609414207SDaniel Mack case UAC2_CLOCK_SELECTOR: 2047f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 2048f0b5e634SDaniel Mack case UAC_FEATURE_UNIT: 2049f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 205069da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 205123caaf19SDaniel Mack /* UAC2_EFFECT_UNIT has the same value */ 205223caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) 2053f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 205423caaf19SDaniel Mack else 205523caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 205669da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 205723caaf19SDaniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 205823caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) 2059f0b5e634SDaniel Mack return parse_audio_extension_unit(state, unitid, p1); 206023caaf19SDaniel Mack else /* UAC_VERSION_2 */ 206123caaf19SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 206261ac5130STorstein Hegge case UAC2_EXTENSION_UNIT_V2: 206361ac5130STorstein Hegge return parse_audio_extension_unit(state, unitid, p1); 2064f0b5e634SDaniel Mack default: 2065f0b5e634SDaniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 2066f0b5e634SDaniel Mack return -EINVAL; 2067f0b5e634SDaniel Mack } 2068f0b5e634SDaniel Mack } 2069f0b5e634SDaniel Mack 2070f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 2071f0b5e634SDaniel Mack { 2072f0b5e634SDaniel Mack kfree(mixer->id_elems); 2073f0b5e634SDaniel Mack if (mixer->urb) { 2074f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 2075f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 2076f0b5e634SDaniel Mack } 2077f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 2078f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 2079f0b5e634SDaniel Mack kfree(mixer); 2080f0b5e634SDaniel Mack } 2081f0b5e634SDaniel Mack 2082f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 2083f0b5e634SDaniel Mack { 2084f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 2085f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2086f0b5e634SDaniel Mack return 0; 2087f0b5e634SDaniel Mack } 2088f0b5e634SDaniel Mack 2089f0b5e634SDaniel Mack /* 2090f0b5e634SDaniel Mack * create mixer controls 2091f0b5e634SDaniel Mack * 2092f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 2093f0b5e634SDaniel Mack */ 2094f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 2095f0b5e634SDaniel Mack { 2096f0b5e634SDaniel Mack struct mixer_build state; 2097f0b5e634SDaniel Mack int err; 2098f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 209923caaf19SDaniel Mack void *p; 2100f0b5e634SDaniel Mack 2101f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 2102f0b5e634SDaniel Mack state.chip = mixer->chip; 2103f0b5e634SDaniel Mack state.mixer = mixer; 21041faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 21051faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 2106f0b5e634SDaniel Mack 2107f0b5e634SDaniel Mack /* check the mapping table */ 2108f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 2109f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 2110f0b5e634SDaniel Mack state.map = map->map; 2111f0b5e634SDaniel Mack state.selector_map = map->selector_map; 2112f0b5e634SDaniel Mack mixer->ignore_ctl_error = map->ignore_ctl_error; 2113f0b5e634SDaniel Mack break; 2114f0b5e634SDaniel Mack } 2115f0b5e634SDaniel Mack } 2116f0b5e634SDaniel Mack 211723caaf19SDaniel Mack p = NULL; 21181faa5d07SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, 21191faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 212023caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 212169da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 212223caaf19SDaniel Mack 212323caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 212423caaf19SDaniel Mack continue; /* invalid descriptor? */ 212523caaf19SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 212623caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 212723caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 212823caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 212923caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 213083ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 213123caaf19SDaniel Mack return err; 213223caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 213323caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 213423caaf19SDaniel Mack 213523caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 2136f0b5e634SDaniel Mack continue; /* invalid descriptor? */ 2137f0b5e634SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 2138f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 2139f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 2140f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 2141f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 214283ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 2143f0b5e634SDaniel Mack return err; 214409414207SDaniel Mack 214509414207SDaniel Mack /* for UAC2, use the same approach to also add the clock selectors */ 214609414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 214783ea5d18SDaniel Mack if (err < 0 && err != -EINVAL) 214809414207SDaniel Mack return err; 2149f0b5e634SDaniel Mack } 215023caaf19SDaniel Mack } 215123caaf19SDaniel Mack 2152f0b5e634SDaniel Mack return 0; 2153f0b5e634SDaniel Mack } 2154f0b5e634SDaniel Mack 2155f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 2156f0b5e634SDaniel Mack { 2157f0b5e634SDaniel Mack struct usb_mixer_elem_info *info; 2158f0b5e634SDaniel Mack 2159f0b5e634SDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) 2160f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 2161f0b5e634SDaniel Mack info->elem_id); 2162f0b5e634SDaniel Mack } 2163f0b5e634SDaniel Mack 2164f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 2165f0b5e634SDaniel Mack int unitid, 2166f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 2167f0b5e634SDaniel Mack { 2168f0b5e634SDaniel Mack static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 2169f0b5e634SDaniel Mack "S8", "U8", "S16", "U16"}; 2170f0b5e634SDaniel Mack snd_iprintf(buffer, " Unit: %i\n", unitid); 2171f0b5e634SDaniel Mack if (cval->elem_id) 2172f0b5e634SDaniel Mack snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", 2173f0b5e634SDaniel Mack cval->elem_id->name, cval->elem_id->index); 2174f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 2175f0b5e634SDaniel Mack "channels=%i, type=\"%s\"\n", cval->id, 2176f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 2177f0b5e634SDaniel Mack val_types[cval->val_type]); 2178f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 2179f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 2180f0b5e634SDaniel Mack } 2181f0b5e634SDaniel Mack 2182f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 2183f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 2184f0b5e634SDaniel Mack { 2185f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 2186f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2187f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2188f0b5e634SDaniel Mack int unitid; 2189f0b5e634SDaniel Mack 2190f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 2191f0b5e634SDaniel Mack snd_iprintf(buffer, 2192f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 21933d8d4dcfSDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 2194f0b5e634SDaniel Mack mixer->ignore_ctl_error); 2195f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 2196f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 2197f0b5e634SDaniel Mack for (cval = mixer->id_elems[unitid]; cval; 2198f0b5e634SDaniel Mack cval = cval->next_id_elem) 2199f0b5e634SDaniel Mack snd_usb_mixer_dump_cval(buffer, unitid, cval); 2200f0b5e634SDaniel Mack } 2201f0b5e634SDaniel Mack } 2202f0b5e634SDaniel Mack } 2203f0b5e634SDaniel Mack 2204e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 2205e213e9cfSDaniel Mack int attribute, int value, int index) 2206e213e9cfSDaniel Mack { 2207e213e9cfSDaniel Mack struct usb_mixer_elem_info *info; 2208e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 2209e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 2210e213e9cfSDaniel Mack __u8 channel = value & 0xff; 2211e213e9cfSDaniel Mack 2212e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 2213e213e9cfSDaniel Mack snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", 2214e213e9cfSDaniel Mack __func__, channel); 2215e213e9cfSDaniel Mack return; 2216e213e9cfSDaniel Mack } 2217e213e9cfSDaniel Mack 2218e213e9cfSDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { 2219e213e9cfSDaniel Mack if (info->control != control) 2220e213e9cfSDaniel Mack continue; 2221e213e9cfSDaniel Mack 2222e213e9cfSDaniel Mack switch (attribute) { 2223e213e9cfSDaniel Mack case UAC2_CS_CUR: 2224e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 2225e213e9cfSDaniel Mack if (channel) 2226e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 2227e213e9cfSDaniel Mack else /* master channel */ 2228e213e9cfSDaniel Mack info->cached = 0; 2229e213e9cfSDaniel Mack 2230e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 2231e213e9cfSDaniel Mack info->elem_id); 2232e213e9cfSDaniel Mack break; 2233e213e9cfSDaniel Mack 2234e213e9cfSDaniel Mack case UAC2_CS_RANGE: 2235e213e9cfSDaniel Mack /* TODO */ 2236e213e9cfSDaniel Mack break; 2237e213e9cfSDaniel Mack 2238e213e9cfSDaniel Mack case UAC2_CS_MEM: 2239e213e9cfSDaniel Mack /* TODO */ 2240e213e9cfSDaniel Mack break; 2241e213e9cfSDaniel Mack 2242e213e9cfSDaniel Mack default: 2243e213e9cfSDaniel Mack snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", 2244e213e9cfSDaniel Mack attribute); 2245e213e9cfSDaniel Mack break; 2246e213e9cfSDaniel Mack } /* switch */ 2247e213e9cfSDaniel Mack } 2248e213e9cfSDaniel Mack } 2249e213e9cfSDaniel Mack 2250e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 2251f0b5e634SDaniel Mack { 2252f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 2253e213e9cfSDaniel Mack int len = urb->actual_length; 2254edf7de31SOliver Neukum int ustatus = urb->status; 2255f0b5e634SDaniel Mack 2256edf7de31SOliver Neukum if (ustatus != 0) 2257e213e9cfSDaniel Mack goto requeue; 2258f0b5e634SDaniel Mack 2259e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2260e213e9cfSDaniel Mack struct uac1_status_word *status; 2261e213e9cfSDaniel Mack 2262e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 2263e213e9cfSDaniel Mack len >= sizeof(*status); 2264e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 2265f0b5e634SDaniel Mack snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", 2266e213e9cfSDaniel Mack status->bStatusType, 2267e213e9cfSDaniel Mack status->bOriginator); 2268e213e9cfSDaniel Mack 2269f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 2270e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2271e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 2272f0b5e634SDaniel Mack continue; 2273e213e9cfSDaniel Mack 2274e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2275e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2276f0b5e634SDaniel Mack else 2277e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2278e213e9cfSDaniel Mack } 2279e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 2280e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 2281e213e9cfSDaniel Mack 2282e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 2283e213e9cfSDaniel Mack len >= sizeof(*msg); 2284e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 2285e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 2286e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2287e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2288e213e9cfSDaniel Mack continue; 2289e213e9cfSDaniel Mack 2290e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2291e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 2292e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 2293f0b5e634SDaniel Mack } 2294f0b5e634SDaniel Mack } 2295e213e9cfSDaniel Mack 2296e213e9cfSDaniel Mack requeue: 2297edf7de31SOliver Neukum if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { 2298f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 2299f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 2300f0b5e634SDaniel Mack } 2301f0b5e634SDaniel Mack } 2302f0b5e634SDaniel Mack 2303edf7de31SOliver Neukum /* stop any bus activity of a mixer */ 2304edf7de31SOliver Neukum void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 2305edf7de31SOliver Neukum { 2306edf7de31SOliver Neukum usb_kill_urb(mixer->urb); 2307edf7de31SOliver Neukum usb_kill_urb(mixer->rc_urb); 2308edf7de31SOliver Neukum } 2309edf7de31SOliver Neukum 2310edf7de31SOliver Neukum int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 2311edf7de31SOliver Neukum { 2312edf7de31SOliver Neukum int err; 2313edf7de31SOliver Neukum 2314edf7de31SOliver Neukum if (mixer->urb) { 2315edf7de31SOliver Neukum err = usb_submit_urb(mixer->urb, GFP_NOIO); 2316edf7de31SOliver Neukum if (err < 0) 2317edf7de31SOliver Neukum return err; 2318edf7de31SOliver Neukum } 2319edf7de31SOliver Neukum 2320edf7de31SOliver Neukum return 0; 2321edf7de31SOliver Neukum } 2322edf7de31SOliver Neukum 2323f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 2324f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 2325f0b5e634SDaniel Mack { 2326f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 2327f0b5e634SDaniel Mack void *transfer_buffer; 2328f0b5e634SDaniel Mack int buffer_length; 2329f0b5e634SDaniel Mack unsigned int epnum; 2330f0b5e634SDaniel Mack 2331f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 23321faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 2333f0b5e634SDaniel Mack return 0; 23341faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 2335f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 2336f0b5e634SDaniel Mack return 0; 2337f0b5e634SDaniel Mack 2338f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 2339f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 2340f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 2341f0b5e634SDaniel Mack if (!transfer_buffer) 2342f0b5e634SDaniel Mack return -ENOMEM; 2343f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 2344f0b5e634SDaniel Mack if (!mixer->urb) { 2345f0b5e634SDaniel Mack kfree(transfer_buffer); 2346f0b5e634SDaniel Mack return -ENOMEM; 2347f0b5e634SDaniel Mack } 2348f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 2349f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 2350f0b5e634SDaniel Mack transfer_buffer, buffer_length, 2351e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 2352f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 2353f0b5e634SDaniel Mack return 0; 2354f0b5e634SDaniel Mack } 2355f0b5e634SDaniel Mack 2356f0b5e634SDaniel Mack int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 2357f0b5e634SDaniel Mack int ignore_error) 2358f0b5e634SDaniel Mack { 2359f0b5e634SDaniel Mack static struct snd_device_ops dev_ops = { 2360f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 2361f0b5e634SDaniel Mack }; 2362f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2363f0b5e634SDaniel Mack struct snd_info_entry *entry; 236423caaf19SDaniel Mack int err; 2365f0b5e634SDaniel Mack 2366f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 2367f0b5e634SDaniel Mack 2368f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 2369f0b5e634SDaniel Mack if (!mixer) 2370f0b5e634SDaniel Mack return -ENOMEM; 2371f0b5e634SDaniel Mack mixer->chip = chip; 2372f0b5e634SDaniel Mack mixer->ignore_ctl_error = ignore_error; 2373f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2374f0b5e634SDaniel Mack GFP_KERNEL); 2375f0b5e634SDaniel Mack if (!mixer->id_elems) { 2376f0b5e634SDaniel Mack kfree(mixer); 2377f0b5e634SDaniel Mack return -ENOMEM; 2378f0b5e634SDaniel Mack } 2379f0b5e634SDaniel Mack 23801faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 23811faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 2382a2acad82SClemens Ladisch case UAC_VERSION_1: 2383a2acad82SClemens Ladisch default: 2384a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 2385a2acad82SClemens Ladisch break; 2386a2acad82SClemens Ladisch case UAC_VERSION_2: 2387a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 2388a2acad82SClemens Ladisch break; 2389a2acad82SClemens Ladisch } 2390f0b5e634SDaniel Mack 2391f0b5e634SDaniel Mack if ((err = snd_usb_mixer_controls(mixer)) < 0 || 2392f0b5e634SDaniel Mack (err = snd_usb_mixer_status_create(mixer)) < 0) 2393f0b5e634SDaniel Mack goto _error; 2394f0b5e634SDaniel Mack 2395f0b5e634SDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2396f0b5e634SDaniel Mack 2397f0b5e634SDaniel Mack err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); 2398f0b5e634SDaniel Mack if (err < 0) 2399f0b5e634SDaniel Mack goto _error; 2400f0b5e634SDaniel Mack 2401f0b5e634SDaniel Mack if (list_empty(&chip->mixer_list) && 2402f0b5e634SDaniel Mack !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2403f0b5e634SDaniel Mack snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2404f0b5e634SDaniel Mack 2405f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 2406f0b5e634SDaniel Mack return 0; 2407f0b5e634SDaniel Mack 2408f0b5e634SDaniel Mack _error: 2409f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2410f0b5e634SDaniel Mack return err; 2411f0b5e634SDaniel Mack } 2412f0b5e634SDaniel Mack 2413f0b5e634SDaniel Mack void snd_usb_mixer_disconnect(struct list_head *p) 2414f0b5e634SDaniel Mack { 2415f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2416f0b5e634SDaniel Mack 2417f0b5e634SDaniel Mack mixer = list_entry(p, struct usb_mixer_interface, list); 2418f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 2419f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 2420f0b5e634SDaniel Mack } 2421