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; 29088a8516aSOliver Neukum int err; 291f0b5e634SDaniel Mack 29288a8516aSOliver Neukum err = snd_usb_autoresume(cval->mixer->chip); 29388a8516aSOliver Neukum if (err < 0) 29488a8516aSOliver Neukum return -EIO; 295f0b5e634SDaniel Mack while (timeout-- > 0) { 2963d8d4dcfSDaniel Mack if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, 297f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 2983d8d4dcfSDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 29917d900c4SClemens Ladisch buf, val_len) >= val_len) { 300f0b5e634SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); 30188a8516aSOliver Neukum snd_usb_autosuspend(cval->mixer->chip); 302f0b5e634SDaniel Mack return 0; 303f0b5e634SDaniel Mack } 304f0b5e634SDaniel Mack } 30588a8516aSOliver Neukum snd_usb_autosuspend(cval->mixer->chip); 306f0b5e634SDaniel Mack snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 307b415ec70STakashi Iwai request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); 308f0b5e634SDaniel Mack return -EINVAL; 309f0b5e634SDaniel Mack } 310f0b5e634SDaniel Mack 31123caaf19SDaniel Mack static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 31223caaf19SDaniel Mack { 3133d8d4dcfSDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 314e8bdb6bbSDaniel Mack unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ 31523caaf19SDaniel Mack unsigned char *val; 316e8bdb6bbSDaniel Mack int ret, size; 31723caaf19SDaniel Mack __u8 bRequest; 31823caaf19SDaniel Mack 319e8bdb6bbSDaniel Mack if (request == UAC_GET_CUR) { 320e8bdb6bbSDaniel Mack bRequest = UAC2_CS_CUR; 321e8bdb6bbSDaniel Mack size = sizeof(__u16); 322e8bdb6bbSDaniel Mack } else { 323e8bdb6bbSDaniel Mack bRequest = UAC2_CS_RANGE; 324e8bdb6bbSDaniel Mack size = sizeof(buf); 325e8bdb6bbSDaniel Mack } 326e8bdb6bbSDaniel Mack 327e8bdb6bbSDaniel Mack memset(buf, 0, sizeof(buf)); 32823caaf19SDaniel Mack 32988a8516aSOliver Neukum ret = snd_usb_autoresume(chip) ? -EIO : 0; 33088a8516aSOliver Neukum if (ret) 33188a8516aSOliver Neukum goto error; 33288a8516aSOliver Neukum 3333d8d4dcfSDaniel Mack ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, 33423caaf19SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, 3353d8d4dcfSDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 33617d900c4SClemens Ladisch buf, size); 33788a8516aSOliver Neukum snd_usb_autosuspend(chip); 33823caaf19SDaniel Mack 33923caaf19SDaniel Mack if (ret < 0) { 34088a8516aSOliver Neukum error: 34109414207SDaniel Mack snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", 3423d8d4dcfSDaniel Mack request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); 34323caaf19SDaniel Mack return ret; 34423caaf19SDaniel Mack } 34523caaf19SDaniel Mack 346e8bdb6bbSDaniel Mack /* FIXME: how should we handle multiple triplets here? */ 347e8bdb6bbSDaniel Mack 34823caaf19SDaniel Mack switch (request) { 34923caaf19SDaniel Mack case UAC_GET_CUR: 35023caaf19SDaniel Mack val = buf; 35123caaf19SDaniel Mack break; 35223caaf19SDaniel Mack case UAC_GET_MIN: 35323caaf19SDaniel Mack val = buf + sizeof(__u16); 35423caaf19SDaniel Mack break; 35523caaf19SDaniel Mack case UAC_GET_MAX: 35623caaf19SDaniel Mack val = buf + sizeof(__u16) * 2; 35723caaf19SDaniel Mack break; 35823caaf19SDaniel Mack case UAC_GET_RES: 35923caaf19SDaniel Mack val = buf + sizeof(__u16) * 3; 36023caaf19SDaniel Mack break; 36123caaf19SDaniel Mack default: 36223caaf19SDaniel Mack return -EINVAL; 36323caaf19SDaniel Mack } 36423caaf19SDaniel Mack 36523caaf19SDaniel Mack *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); 36623caaf19SDaniel Mack 36723caaf19SDaniel Mack return 0; 36823caaf19SDaniel Mack } 36923caaf19SDaniel Mack 37023caaf19SDaniel Mack static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) 37123caaf19SDaniel Mack { 37223caaf19SDaniel Mack return (cval->mixer->protocol == UAC_VERSION_1) ? 37323caaf19SDaniel Mack get_ctl_value_v1(cval, request, validx, value_ret) : 37423caaf19SDaniel Mack get_ctl_value_v2(cval, request, validx, value_ret); 37523caaf19SDaniel Mack } 37623caaf19SDaniel Mack 377f0b5e634SDaniel Mack static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) 378f0b5e634SDaniel Mack { 379f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, validx, value); 380f0b5e634SDaniel Mack } 381f0b5e634SDaniel Mack 382f0b5e634SDaniel Mack /* channel = 0: master, 1 = first channel */ 383f0b5e634SDaniel Mack static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, 384f0b5e634SDaniel Mack int channel, int *value) 385f0b5e634SDaniel Mack { 386f0b5e634SDaniel Mack return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); 387f0b5e634SDaniel Mack } 388f0b5e634SDaniel Mack 389f0b5e634SDaniel Mack static int get_cur_mix_value(struct usb_mixer_elem_info *cval, 390f0b5e634SDaniel Mack int channel, int index, int *value) 391f0b5e634SDaniel Mack { 392f0b5e634SDaniel Mack int err; 393f0b5e634SDaniel Mack 394f0b5e634SDaniel Mack if (cval->cached & (1 << channel)) { 395f0b5e634SDaniel Mack *value = cval->cache_val[index]; 396f0b5e634SDaniel Mack return 0; 397f0b5e634SDaniel Mack } 398f0b5e634SDaniel Mack err = get_cur_mix_raw(cval, channel, value); 399f0b5e634SDaniel Mack if (err < 0) { 400f0b5e634SDaniel Mack if (!cval->mixer->ignore_ctl_error) 40123caaf19SDaniel Mack snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", 402f0b5e634SDaniel Mack cval->control, channel, err); 403f0b5e634SDaniel Mack return err; 404f0b5e634SDaniel Mack } 405f0b5e634SDaniel Mack cval->cached |= 1 << channel; 406f0b5e634SDaniel Mack cval->cache_val[index] = *value; 407f0b5e634SDaniel Mack return 0; 408f0b5e634SDaniel Mack } 409f0b5e634SDaniel Mack 410f0b5e634SDaniel Mack 411f0b5e634SDaniel Mack /* 412f0b5e634SDaniel Mack * set a mixer value 413f0b5e634SDaniel Mack */ 414f0b5e634SDaniel Mack 415f0b5e634SDaniel Mack int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, 416f0b5e634SDaniel Mack int request, int validx, int value_set) 417f0b5e634SDaniel Mack { 4183d8d4dcfSDaniel Mack struct snd_usb_audio *chip = cval->mixer->chip; 419f0b5e634SDaniel Mack unsigned char buf[2]; 42088a8516aSOliver Neukum int val_len, err, timeout = 10; 42123caaf19SDaniel Mack 42223caaf19SDaniel Mack if (cval->mixer->protocol == UAC_VERSION_1) { 42323caaf19SDaniel Mack val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; 42423caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 42523caaf19SDaniel Mack /* audio class v2 controls are always 2 bytes in size */ 42623caaf19SDaniel Mack val_len = sizeof(__u16); 42723caaf19SDaniel Mack 42823caaf19SDaniel Mack /* FIXME */ 42923caaf19SDaniel Mack if (request != UAC_SET_CUR) { 43023caaf19SDaniel Mack snd_printdd(KERN_WARNING "RANGE setting not yet supported\n"); 43123caaf19SDaniel Mack return -EINVAL; 43223caaf19SDaniel Mack } 43323caaf19SDaniel Mack 43423caaf19SDaniel Mack request = UAC2_CS_CUR; 43523caaf19SDaniel Mack } 436f0b5e634SDaniel Mack 437f0b5e634SDaniel Mack value_set = convert_bytes_value(cval, value_set); 438f0b5e634SDaniel Mack buf[0] = value_set & 0xff; 439f0b5e634SDaniel Mack buf[1] = (value_set >> 8) & 0xff; 44088a8516aSOliver Neukum err = snd_usb_autoresume(chip); 44188a8516aSOliver Neukum if (err < 0) 44288a8516aSOliver Neukum return -EIO; 443f0b5e634SDaniel Mack while (timeout-- > 0) 4443d8d4dcfSDaniel Mack if (snd_usb_ctl_msg(chip->dev, 4453d8d4dcfSDaniel Mack usb_sndctrlpipe(chip->dev, 0), request, 446f0b5e634SDaniel Mack USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 4473d8d4dcfSDaniel Mack validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), 44817d900c4SClemens Ladisch buf, val_len) >= 0) { 44988a8516aSOliver Neukum snd_usb_autosuspend(chip); 450f0b5e634SDaniel Mack return 0; 45188a8516aSOliver Neukum } 45288a8516aSOliver Neukum snd_usb_autosuspend(chip); 453f0b5e634SDaniel Mack snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", 4543d8d4dcfSDaniel Mack request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); 455f0b5e634SDaniel Mack return -EINVAL; 456f0b5e634SDaniel Mack } 457f0b5e634SDaniel Mack 458f0b5e634SDaniel Mack static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) 459f0b5e634SDaniel Mack { 460f0b5e634SDaniel Mack return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); 461f0b5e634SDaniel Mack } 462f0b5e634SDaniel Mack 463f0b5e634SDaniel Mack static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, 464f0b5e634SDaniel Mack int index, int value) 465f0b5e634SDaniel Mack { 466f0b5e634SDaniel Mack int err; 467a6a33259SDaniel Mack unsigned int read_only = (channel == 0) ? 468a6a33259SDaniel Mack cval->master_readonly : 469a6a33259SDaniel Mack cval->ch_readonly & (1 << (channel - 1)); 470a6a33259SDaniel Mack 471a6a33259SDaniel Mack if (read_only) { 472a6a33259SDaniel Mack snd_printdd(KERN_INFO "%s(): channel %d of control %d is read_only\n", 473a6a33259SDaniel Mack __func__, channel, cval->control); 474a6a33259SDaniel Mack return 0; 475a6a33259SDaniel Mack } 476a6a33259SDaniel Mack 477f0b5e634SDaniel Mack err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, 478f0b5e634SDaniel Mack value); 479f0b5e634SDaniel Mack if (err < 0) 480f0b5e634SDaniel Mack return err; 481f0b5e634SDaniel Mack cval->cached |= 1 << channel; 482f0b5e634SDaniel Mack cval->cache_val[index] = value; 483f0b5e634SDaniel Mack return 0; 484f0b5e634SDaniel Mack } 485f0b5e634SDaniel Mack 486f0b5e634SDaniel Mack /* 487f0b5e634SDaniel Mack * TLV callback for mixer volume controls 488f0b5e634SDaniel Mack */ 489285de9c0SFelix Homann int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, 490f0b5e634SDaniel Mack unsigned int size, unsigned int __user *_tlv) 491f0b5e634SDaniel Mack { 492f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 493f0b5e634SDaniel Mack DECLARE_TLV_DB_MINMAX(scale, 0, 0); 494f0b5e634SDaniel Mack 495f0b5e634SDaniel Mack if (size < sizeof(scale)) 496f0b5e634SDaniel Mack return -ENOMEM; 497f0b5e634SDaniel Mack scale[2] = cval->dBmin; 498f0b5e634SDaniel Mack scale[3] = cval->dBmax; 499f0b5e634SDaniel Mack if (copy_to_user(_tlv, scale, sizeof(scale))) 500f0b5e634SDaniel Mack return -EFAULT; 501f0b5e634SDaniel Mack return 0; 502f0b5e634SDaniel Mack } 503f0b5e634SDaniel Mack 504f0b5e634SDaniel Mack /* 505f0b5e634SDaniel Mack * parser routines begin here... 506f0b5e634SDaniel Mack */ 507f0b5e634SDaniel Mack 508f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid); 509f0b5e634SDaniel Mack 510f0b5e634SDaniel Mack 511f0b5e634SDaniel Mack /* 512f0b5e634SDaniel Mack * check if the input/output channel routing is enabled on the given bitmap. 513f0b5e634SDaniel Mack * used for mixer unit parser 514f0b5e634SDaniel Mack */ 515f0b5e634SDaniel Mack static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) 516f0b5e634SDaniel Mack { 517f0b5e634SDaniel Mack int idx = ich * num_outs + och; 518f0b5e634SDaniel Mack return bmap[idx >> 3] & (0x80 >> (idx & 7)); 519f0b5e634SDaniel Mack } 520f0b5e634SDaniel Mack 521f0b5e634SDaniel Mack 522f0b5e634SDaniel Mack /* 523f0b5e634SDaniel Mack * add an alsa control element 524f0b5e634SDaniel Mack * search and increment the index until an empty slot is found. 525f0b5e634SDaniel Mack * 526f0b5e634SDaniel Mack * if failed, give up and free the control instance. 527f0b5e634SDaniel Mack */ 528f0b5e634SDaniel Mack 529ef9d5970SDaniel Mack int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, 530ef9d5970SDaniel Mack struct snd_kcontrol *kctl) 531f0b5e634SDaniel Mack { 532f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 533f0b5e634SDaniel Mack int err; 534f0b5e634SDaniel Mack 535ef9d5970SDaniel Mack while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) 536f0b5e634SDaniel Mack kctl->id.index++; 537ef9d5970SDaniel Mack if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { 538f0b5e634SDaniel Mack snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); 539f0b5e634SDaniel Mack return err; 540f0b5e634SDaniel Mack } 541f0b5e634SDaniel Mack cval->elem_id = &kctl->id; 542ef9d5970SDaniel Mack cval->next_id_elem = mixer->id_elems[cval->id]; 543ef9d5970SDaniel Mack mixer->id_elems[cval->id] = cval; 544f0b5e634SDaniel Mack return 0; 545f0b5e634SDaniel Mack } 546f0b5e634SDaniel Mack 547f0b5e634SDaniel Mack 548f0b5e634SDaniel Mack /* 549f0b5e634SDaniel Mack * get a terminal name string 550f0b5e634SDaniel Mack */ 551f0b5e634SDaniel Mack 552f0b5e634SDaniel Mack static struct iterm_name_combo { 553f0b5e634SDaniel Mack int type; 554f0b5e634SDaniel Mack char *name; 555f0b5e634SDaniel Mack } iterm_names[] = { 556f0b5e634SDaniel Mack { 0x0300, "Output" }, 557f0b5e634SDaniel Mack { 0x0301, "Speaker" }, 558f0b5e634SDaniel Mack { 0x0302, "Headphone" }, 559f0b5e634SDaniel Mack { 0x0303, "HMD Audio" }, 560f0b5e634SDaniel Mack { 0x0304, "Desktop Speaker" }, 561f0b5e634SDaniel Mack { 0x0305, "Room Speaker" }, 562f0b5e634SDaniel Mack { 0x0306, "Com Speaker" }, 563f0b5e634SDaniel Mack { 0x0307, "LFE" }, 564f0b5e634SDaniel Mack { 0x0600, "External In" }, 565f0b5e634SDaniel Mack { 0x0601, "Analog In" }, 566f0b5e634SDaniel Mack { 0x0602, "Digital In" }, 567f0b5e634SDaniel Mack { 0x0603, "Line" }, 568f0b5e634SDaniel Mack { 0x0604, "Legacy In" }, 569f0b5e634SDaniel Mack { 0x0605, "IEC958 In" }, 570f0b5e634SDaniel Mack { 0x0606, "1394 DA Stream" }, 571f0b5e634SDaniel Mack { 0x0607, "1394 DV Stream" }, 572f0b5e634SDaniel Mack { 0x0700, "Embedded" }, 573f0b5e634SDaniel Mack { 0x0701, "Noise Source" }, 574f0b5e634SDaniel Mack { 0x0702, "Equalization Noise" }, 575f0b5e634SDaniel Mack { 0x0703, "CD" }, 576f0b5e634SDaniel Mack { 0x0704, "DAT" }, 577f0b5e634SDaniel Mack { 0x0705, "DCC" }, 578f0b5e634SDaniel Mack { 0x0706, "MiniDisk" }, 579f0b5e634SDaniel Mack { 0x0707, "Analog Tape" }, 580f0b5e634SDaniel Mack { 0x0708, "Phonograph" }, 581f0b5e634SDaniel Mack { 0x0709, "VCR Audio" }, 582f0b5e634SDaniel Mack { 0x070a, "Video Disk Audio" }, 583f0b5e634SDaniel Mack { 0x070b, "DVD Audio" }, 584f0b5e634SDaniel Mack { 0x070c, "TV Tuner Audio" }, 585f0b5e634SDaniel Mack { 0x070d, "Satellite Rec Audio" }, 586f0b5e634SDaniel Mack { 0x070e, "Cable Tuner Audio" }, 587f0b5e634SDaniel Mack { 0x070f, "DSS Audio" }, 588f0b5e634SDaniel Mack { 0x0710, "Radio Receiver" }, 589f0b5e634SDaniel Mack { 0x0711, "Radio Transmitter" }, 590f0b5e634SDaniel Mack { 0x0712, "Multi-Track Recorder" }, 591f0b5e634SDaniel Mack { 0x0713, "Synthesizer" }, 592f0b5e634SDaniel Mack { 0 }, 593f0b5e634SDaniel Mack }; 594f0b5e634SDaniel Mack 595f0b5e634SDaniel Mack static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, 596f0b5e634SDaniel Mack unsigned char *name, int maxlen, int term_only) 597f0b5e634SDaniel Mack { 598f0b5e634SDaniel Mack struct iterm_name_combo *names; 599f0b5e634SDaniel Mack 600f0b5e634SDaniel Mack if (iterm->name) 601f0b5e634SDaniel Mack return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); 602f0b5e634SDaniel Mack 603f0b5e634SDaniel Mack /* virtual type - not a real terminal */ 604f0b5e634SDaniel Mack if (iterm->type >> 16) { 605f0b5e634SDaniel Mack if (term_only) 606f0b5e634SDaniel Mack return 0; 607f0b5e634SDaniel Mack switch (iterm->type >> 16) { 608f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 609f0b5e634SDaniel Mack strcpy(name, "Selector"); return 8; 61069da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 611f0b5e634SDaniel Mack strcpy(name, "Process Unit"); return 12; 61269da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 613f0b5e634SDaniel Mack strcpy(name, "Ext Unit"); return 8; 614f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 615f0b5e634SDaniel Mack strcpy(name, "Mixer"); return 5; 616f0b5e634SDaniel Mack default: 617f0b5e634SDaniel Mack return sprintf(name, "Unit %d", iterm->id); 618f0b5e634SDaniel Mack } 619f0b5e634SDaniel Mack } 620f0b5e634SDaniel Mack 621f0b5e634SDaniel Mack switch (iterm->type & 0xff00) { 622f0b5e634SDaniel Mack case 0x0100: 623f0b5e634SDaniel Mack strcpy(name, "PCM"); return 3; 624f0b5e634SDaniel Mack case 0x0200: 625f0b5e634SDaniel Mack strcpy(name, "Mic"); return 3; 626f0b5e634SDaniel Mack case 0x0400: 627f0b5e634SDaniel Mack strcpy(name, "Headset"); return 7; 628f0b5e634SDaniel Mack case 0x0500: 629f0b5e634SDaniel Mack strcpy(name, "Phone"); return 5; 630f0b5e634SDaniel Mack } 631f0b5e634SDaniel Mack 632f0b5e634SDaniel Mack for (names = iterm_names; names->type; names++) 633f0b5e634SDaniel Mack if (names->type == iterm->type) { 634f0b5e634SDaniel Mack strcpy(name, names->name); 635f0b5e634SDaniel Mack return strlen(names->name); 636f0b5e634SDaniel Mack } 637f0b5e634SDaniel Mack return 0; 638f0b5e634SDaniel Mack } 639f0b5e634SDaniel Mack 640f0b5e634SDaniel Mack 641f0b5e634SDaniel Mack /* 642f0b5e634SDaniel Mack * parse the source unit recursively until it reaches to a terminal 643f0b5e634SDaniel Mack * or a branched unit. 644f0b5e634SDaniel Mack */ 645f0b5e634SDaniel Mack static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) 646f0b5e634SDaniel Mack { 64709414207SDaniel Mack int err; 64823caaf19SDaniel Mack void *p1; 649f0b5e634SDaniel Mack 650f0b5e634SDaniel Mack memset(term, 0, sizeof(*term)); 651f0b5e634SDaniel Mack while ((p1 = find_audio_control_unit(state, id)) != NULL) { 65223caaf19SDaniel Mack unsigned char *hdr = p1; 653f0b5e634SDaniel Mack term->id = id; 65423caaf19SDaniel Mack switch (hdr[2]) { 655f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 65623caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 65723caaf19SDaniel Mack struct uac_input_terminal_descriptor *d = p1; 65823caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 65923caaf19SDaniel Mack term->channels = d->bNrChannels; 66023caaf19SDaniel Mack term->chconfig = le16_to_cpu(d->wChannelConfig); 66123caaf19SDaniel Mack term->name = d->iTerminal; 66223caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 66323caaf19SDaniel Mack struct uac2_input_terminal_descriptor *d = p1; 66423caaf19SDaniel Mack term->type = le16_to_cpu(d->wTerminalType); 66523caaf19SDaniel Mack term->channels = d->bNrChannels; 66623caaf19SDaniel Mack term->chconfig = le32_to_cpu(d->bmChannelConfig); 66723caaf19SDaniel Mack term->name = d->iTerminal; 66809414207SDaniel Mack 66909414207SDaniel Mack /* call recursively to get the clock selectors */ 67009414207SDaniel Mack err = check_input_term(state, d->bCSourceID, term); 67109414207SDaniel Mack if (err < 0) 67209414207SDaniel Mack return err; 67323caaf19SDaniel Mack } 674f0b5e634SDaniel Mack return 0; 67523caaf19SDaniel Mack case UAC_FEATURE_UNIT: { 67623caaf19SDaniel Mack /* the header is the same for v1 and v2 */ 67723caaf19SDaniel Mack struct uac_feature_unit_descriptor *d = p1; 6785e688883SDaniel Mack id = d->bSourceID; 679f0b5e634SDaniel Mack break; /* continue to parse */ 680f0b5e634SDaniel Mack } 68123caaf19SDaniel Mack case UAC_MIXER_UNIT: { 68223caaf19SDaniel Mack struct uac_mixer_unit_descriptor *d = p1; 68323caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 68423caaf19SDaniel Mack term->channels = uac_mixer_unit_bNrChannels(d); 68523caaf19SDaniel Mack term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); 68623caaf19SDaniel Mack term->name = uac_mixer_unit_iMixer(d); 687f0b5e634SDaniel Mack return 0; 68823caaf19SDaniel Mack } 68909414207SDaniel Mack case UAC_SELECTOR_UNIT: 69009414207SDaniel Mack case UAC2_CLOCK_SELECTOR: { 69123caaf19SDaniel Mack struct uac_selector_unit_descriptor *d = p1; 69223caaf19SDaniel Mack /* call recursively to retrieve the channel info */ 69323caaf19SDaniel Mack if (check_input_term(state, d->baSourceID[0], term) < 0) 69423caaf19SDaniel Mack return -ENODEV; 69523caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 69623caaf19SDaniel Mack term->id = id; 69723caaf19SDaniel Mack term->name = uac_selector_unit_iSelector(d); 69823caaf19SDaniel Mack return 0; 69923caaf19SDaniel Mack } 70069da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 70169da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: { 70223caaf19SDaniel Mack struct uac_processing_unit_descriptor *d = p1; 70323caaf19SDaniel Mack if (d->bNrInPins) { 70423caaf19SDaniel Mack id = d->baSourceID[0]; 70523caaf19SDaniel Mack break; /* continue to parse */ 70623caaf19SDaniel Mack } 70723caaf19SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 70823caaf19SDaniel Mack term->channels = uac_processing_unit_bNrChannels(d); 70923caaf19SDaniel Mack term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); 71023caaf19SDaniel Mack term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); 71123caaf19SDaniel Mack return 0; 71223caaf19SDaniel Mack } 71309414207SDaniel Mack case UAC2_CLOCK_SOURCE: { 71409414207SDaniel Mack struct uac_clock_source_descriptor *d = p1; 71509414207SDaniel Mack term->type = d->bDescriptorSubtype << 16; /* virtual type */ 71609414207SDaniel Mack term->id = id; 71709414207SDaniel Mack term->name = d->iClockSource; 71809414207SDaniel Mack return 0; 71909414207SDaniel Mack } 720f0b5e634SDaniel Mack default: 721f0b5e634SDaniel Mack return -ENODEV; 722f0b5e634SDaniel Mack } 723f0b5e634SDaniel Mack } 724f0b5e634SDaniel Mack return -ENODEV; 725f0b5e634SDaniel Mack } 726f0b5e634SDaniel Mack 727f0b5e634SDaniel Mack 728f0b5e634SDaniel Mack /* 729f0b5e634SDaniel Mack * Feature Unit 730f0b5e634SDaniel Mack */ 731f0b5e634SDaniel Mack 732f0b5e634SDaniel Mack /* feature unit control information */ 733f0b5e634SDaniel Mack struct usb_feature_control_info { 734f0b5e634SDaniel Mack const char *name; 735f0b5e634SDaniel Mack unsigned int type; /* control type (mute, volume, etc.) */ 736f0b5e634SDaniel Mack }; 737f0b5e634SDaniel Mack 738f0b5e634SDaniel Mack static struct usb_feature_control_info audio_feature_info[] = { 739f0b5e634SDaniel Mack { "Mute", USB_MIXER_INV_BOOLEAN }, 740f0b5e634SDaniel Mack { "Volume", USB_MIXER_S16 }, 741f0b5e634SDaniel Mack { "Tone Control - Bass", USB_MIXER_S8 }, 742f0b5e634SDaniel Mack { "Tone Control - Mid", USB_MIXER_S8 }, 743f0b5e634SDaniel Mack { "Tone Control - Treble", USB_MIXER_S8 }, 744f0b5e634SDaniel Mack { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ 745f0b5e634SDaniel Mack { "Auto Gain Control", USB_MIXER_BOOLEAN }, 746f0b5e634SDaniel Mack { "Delay Control", USB_MIXER_U16 }, 747f0b5e634SDaniel Mack { "Bass Boost", USB_MIXER_BOOLEAN }, 748f0b5e634SDaniel Mack { "Loudness", USB_MIXER_BOOLEAN }, 7492e0281d1SDaniel Mack /* UAC2 specific */ 7502e0281d1SDaniel Mack { "Input Gain Control", USB_MIXER_U16 }, 7512e0281d1SDaniel Mack { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, 7522e0281d1SDaniel Mack { "Phase Inverter Control", USB_MIXER_BOOLEAN }, 753f0b5e634SDaniel Mack }; 754f0b5e634SDaniel Mack 755f0b5e634SDaniel Mack 756f0b5e634SDaniel Mack /* private_free callback */ 757f0b5e634SDaniel Mack static void usb_mixer_elem_free(struct snd_kcontrol *kctl) 758f0b5e634SDaniel Mack { 759f0b5e634SDaniel Mack kfree(kctl->private_data); 760f0b5e634SDaniel Mack kctl->private_data = NULL; 761f0b5e634SDaniel Mack } 762f0b5e634SDaniel Mack 763f0b5e634SDaniel Mack 764f0b5e634SDaniel Mack /* 765f0b5e634SDaniel Mack * interface to ALSA control for feature/mixer units 766f0b5e634SDaniel Mack */ 767f0b5e634SDaniel Mack 768dcaaf9f2STakashi Iwai /* volume control quirks */ 769dcaaf9f2STakashi Iwai static void volume_control_quirks(struct usb_mixer_elem_info *cval, 770dcaaf9f2STakashi Iwai struct snd_kcontrol *kctl) 771dcaaf9f2STakashi Iwai { 772dcaaf9f2STakashi Iwai switch (cval->mixer->chip->usb_id) { 773d34bf148SFelix Homann case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ 774d34bf148SFelix Homann case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ 775d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Duration") == 0) { 776d34bf148SFelix Homann snd_printk(KERN_INFO 777d34bf148SFelix Homann "usb-audio: set quirk for FTU Effect Duration\n"); 778d34bf148SFelix Homann cval->min = 0x0000; 779d34bf148SFelix Homann cval->max = 0x7f00; 780d34bf148SFelix Homann cval->res = 0x0100; 781d34bf148SFelix Homann break; 782d34bf148SFelix Homann } 783d34bf148SFelix Homann if (strcmp(kctl->id.name, "Effect Volume") == 0 || 784d34bf148SFelix Homann strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { 785d34bf148SFelix Homann snd_printk(KERN_INFO 786d34bf148SFelix Homann "usb-audio: set quirks for FTU Effect Feedback/Volume\n"); 787d34bf148SFelix Homann cval->min = 0x00; 788d34bf148SFelix Homann cval->max = 0x7f; 789d34bf148SFelix Homann break; 790d34bf148SFelix Homann } 791d34bf148SFelix Homann break; 792d34bf148SFelix Homann 793dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0101): 794dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0104): 795dcaaf9f2STakashi Iwai case USB_ID(0x0471, 0x0105): 796dcaaf9f2STakashi Iwai case USB_ID(0x0672, 0x1041): 797dcaaf9f2STakashi Iwai /* quirk for UDA1321/N101. 798dcaaf9f2STakashi Iwai * note that detection between firmware 2.1.1.7 (N101) 799dcaaf9f2STakashi Iwai * and later 2.1.1.21 is not very clear from datasheets. 800dcaaf9f2STakashi Iwai * I hope that the min value is -15360 for newer firmware --jk 801dcaaf9f2STakashi Iwai */ 802dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "PCM Playback Volume") && 803dcaaf9f2STakashi Iwai cval->min == -15616) { 804dcaaf9f2STakashi Iwai snd_printk(KERN_INFO 805dcaaf9f2STakashi Iwai "set volume quirk for UDA1321/N101 chip\n"); 806dcaaf9f2STakashi Iwai cval->max = -256; 807dcaaf9f2STakashi Iwai } 808dcaaf9f2STakashi Iwai break; 809dcaaf9f2STakashi Iwai 810dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x09a4): 811dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 812dcaaf9f2STakashi Iwai snd_printk(KERN_INFO 813dcaaf9f2STakashi Iwai "set volume quirk for QuickCam E3500\n"); 814dcaaf9f2STakashi Iwai cval->min = 6080; 815dcaaf9f2STakashi Iwai cval->max = 8768; 816dcaaf9f2STakashi Iwai cval->res = 192; 817dcaaf9f2STakashi Iwai } 818dcaaf9f2STakashi Iwai break; 819dcaaf9f2STakashi Iwai 820dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0808): 821dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0809): 82255c0008bSAlexey Fisher case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ 823dcaaf9f2STakashi Iwai case USB_ID(0x046d, 0x0991): 824dcaaf9f2STakashi Iwai /* Most audio usb devices lie about volume resolution. 825dcaaf9f2STakashi Iwai * Most Logitech webcams have res = 384. 826dcaaf9f2STakashi Iwai * Proboly there is some logitech magic behind this number --fishor 827dcaaf9f2STakashi Iwai */ 828dcaaf9f2STakashi Iwai if (!strcmp(kctl->id.name, "Mic Capture Volume")) { 829dcaaf9f2STakashi Iwai snd_printk(KERN_INFO 830dcaaf9f2STakashi Iwai "set resolution quirk: cval->res = 384\n"); 831dcaaf9f2STakashi Iwai cval->res = 384; 832dcaaf9f2STakashi Iwai } 833dcaaf9f2STakashi Iwai break; 834dcaaf9f2STakashi Iwai 835dcaaf9f2STakashi Iwai } 836dcaaf9f2STakashi Iwai } 837dcaaf9f2STakashi Iwai 838f0b5e634SDaniel Mack /* 839f0b5e634SDaniel Mack * retrieve the minimum and maximum values for the specified control 840f0b5e634SDaniel Mack */ 841dcaaf9f2STakashi Iwai static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, 842dcaaf9f2STakashi Iwai int default_min, struct snd_kcontrol *kctl) 843f0b5e634SDaniel Mack { 844f0b5e634SDaniel Mack /* for failsafe */ 845f0b5e634SDaniel Mack cval->min = default_min; 846f0b5e634SDaniel Mack cval->max = cval->min + 1; 847f0b5e634SDaniel Mack cval->res = 1; 848f0b5e634SDaniel Mack cval->dBmin = cval->dBmax = 0; 849f0b5e634SDaniel Mack 850f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 851f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 852f0b5e634SDaniel Mack cval->initialized = 1; 853f0b5e634SDaniel Mack } else { 854f0b5e634SDaniel Mack int minchn = 0; 855f0b5e634SDaniel Mack if (cval->cmask) { 856f0b5e634SDaniel Mack int i; 857f0b5e634SDaniel Mack for (i = 0; i < MAX_CHANNELS; i++) 858f0b5e634SDaniel Mack if (cval->cmask & (1 << i)) { 859f0b5e634SDaniel Mack minchn = i + 1; 860f0b5e634SDaniel Mack break; 861f0b5e634SDaniel Mack } 862f0b5e634SDaniel Mack } 863f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || 864f0b5e634SDaniel Mack get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { 865f0b5e634SDaniel Mack snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", 8661a4e34e6STakashi Iwai cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); 867f0b5e634SDaniel Mack return -EINVAL; 868f0b5e634SDaniel Mack } 869f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { 870f0b5e634SDaniel Mack cval->res = 1; 871f0b5e634SDaniel Mack } else { 872f0b5e634SDaniel Mack int last_valid_res = cval->res; 873f0b5e634SDaniel Mack 874f0b5e634SDaniel Mack while (cval->res > 1) { 875f0b5e634SDaniel Mack if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, 876f0b5e634SDaniel Mack (cval->control << 8) | minchn, cval->res / 2) < 0) 877f0b5e634SDaniel Mack break; 878f0b5e634SDaniel Mack cval->res /= 2; 879f0b5e634SDaniel Mack } 880f0b5e634SDaniel Mack if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) 881f0b5e634SDaniel Mack cval->res = last_valid_res; 882f0b5e634SDaniel Mack } 883f0b5e634SDaniel Mack if (cval->res == 0) 884f0b5e634SDaniel Mack cval->res = 1; 885f0b5e634SDaniel Mack 886f0b5e634SDaniel Mack /* Additional checks for the proper resolution 887f0b5e634SDaniel Mack * 888f0b5e634SDaniel Mack * Some devices report smaller resolutions than actually 889f0b5e634SDaniel Mack * reacting. They don't return errors but simply clip 890f0b5e634SDaniel Mack * to the lower aligned value. 891f0b5e634SDaniel Mack */ 892f0b5e634SDaniel Mack if (cval->min + cval->res < cval->max) { 893f0b5e634SDaniel Mack int last_valid_res = cval->res; 894f0b5e634SDaniel Mack int saved, test, check; 895f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &saved); 896f0b5e634SDaniel Mack for (;;) { 897f0b5e634SDaniel Mack test = saved; 898f0b5e634SDaniel Mack if (test < cval->max) 899f0b5e634SDaniel Mack test += cval->res; 900f0b5e634SDaniel Mack else 901f0b5e634SDaniel Mack test -= cval->res; 902f0b5e634SDaniel Mack if (test < cval->min || test > cval->max || 903f0b5e634SDaniel Mack set_cur_mix_value(cval, minchn, 0, test) || 904f0b5e634SDaniel Mack get_cur_mix_raw(cval, minchn, &check)) { 905f0b5e634SDaniel Mack cval->res = last_valid_res; 906f0b5e634SDaniel Mack break; 907f0b5e634SDaniel Mack } 908f0b5e634SDaniel Mack if (test == check) 909f0b5e634SDaniel Mack break; 910f0b5e634SDaniel Mack cval->res *= 2; 911f0b5e634SDaniel Mack } 912f0b5e634SDaniel Mack set_cur_mix_value(cval, minchn, 0, saved); 913f0b5e634SDaniel Mack } 914f0b5e634SDaniel Mack 915f0b5e634SDaniel Mack cval->initialized = 1; 916f0b5e634SDaniel Mack } 917f0b5e634SDaniel Mack 918dcaaf9f2STakashi Iwai if (kctl) 919dcaaf9f2STakashi Iwai volume_control_quirks(cval, kctl); 920dcaaf9f2STakashi Iwai 921f0b5e634SDaniel Mack /* USB descriptions contain the dB scale in 1/256 dB unit 922f0b5e634SDaniel Mack * while ALSA TLV contains in 1/100 dB unit 923f0b5e634SDaniel Mack */ 924f0b5e634SDaniel Mack cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; 925f0b5e634SDaniel Mack cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; 926f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 927f0b5e634SDaniel Mack /* something is wrong; assume it's either from/to 0dB */ 928f0b5e634SDaniel Mack if (cval->dBmin < 0) 929f0b5e634SDaniel Mack cval->dBmax = 0; 930f0b5e634SDaniel Mack else if (cval->dBmin > 0) 931f0b5e634SDaniel Mack cval->dBmin = 0; 932f0b5e634SDaniel Mack if (cval->dBmin > cval->dBmax) { 933f0b5e634SDaniel Mack /* totally crap, return an error */ 934f0b5e634SDaniel Mack return -EINVAL; 935f0b5e634SDaniel Mack } 936f0b5e634SDaniel Mack } 937f0b5e634SDaniel Mack 938f0b5e634SDaniel Mack return 0; 939f0b5e634SDaniel Mack } 940f0b5e634SDaniel Mack 941dcaaf9f2STakashi Iwai #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) 942f0b5e634SDaniel Mack 943f0b5e634SDaniel Mack /* get a feature/mixer unit info */ 944f0b5e634SDaniel Mack static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 945f0b5e634SDaniel Mack { 946f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 947f0b5e634SDaniel Mack 948f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 949f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) 950f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 951f0b5e634SDaniel Mack else 952f0b5e634SDaniel Mack uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 953f0b5e634SDaniel Mack uinfo->count = cval->channels; 954f0b5e634SDaniel Mack if (cval->val_type == USB_MIXER_BOOLEAN || 955f0b5e634SDaniel Mack cval->val_type == USB_MIXER_INV_BOOLEAN) { 956f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 957f0b5e634SDaniel Mack uinfo->value.integer.max = 1; 958f0b5e634SDaniel Mack } else { 9599fcd0ab1STakashi Iwai if (!cval->initialized) { 960dcaaf9f2STakashi Iwai get_min_max_with_quirks(cval, 0, kcontrol); 9619fcd0ab1STakashi Iwai if (cval->initialized && cval->dBmin >= cval->dBmax) { 9629fcd0ab1STakashi Iwai kcontrol->vd[0].access &= 9639fcd0ab1STakashi Iwai ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | 9649fcd0ab1STakashi Iwai SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); 9659fcd0ab1STakashi Iwai snd_ctl_notify(cval->mixer->chip->card, 9669fcd0ab1STakashi Iwai SNDRV_CTL_EVENT_MASK_INFO, 9679fcd0ab1STakashi Iwai &kcontrol->id); 9689fcd0ab1STakashi Iwai } 9699fcd0ab1STakashi Iwai } 970f0b5e634SDaniel Mack uinfo->value.integer.min = 0; 971f0b5e634SDaniel Mack uinfo->value.integer.max = 972f0b5e634SDaniel Mack (cval->max - cval->min + cval->res - 1) / cval->res; 973f0b5e634SDaniel Mack } 974f0b5e634SDaniel Mack return 0; 975f0b5e634SDaniel Mack } 976f0b5e634SDaniel Mack 977f0b5e634SDaniel Mack /* get the current value from feature/mixer unit */ 978f0b5e634SDaniel Mack static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 979f0b5e634SDaniel Mack { 980f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 981f0b5e634SDaniel Mack int c, cnt, val, err; 982f0b5e634SDaniel Mack 983f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 984f0b5e634SDaniel Mack if (cval->cmask) { 985f0b5e634SDaniel Mack cnt = 0; 986f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 987f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 988f0b5e634SDaniel Mack continue; 989f0b5e634SDaniel Mack err = get_cur_mix_value(cval, c + 1, cnt, &val); 990f0b5e634SDaniel Mack if (err < 0) 991f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 992f0b5e634SDaniel Mack val = get_relative_value(cval, val); 993f0b5e634SDaniel Mack ucontrol->value.integer.value[cnt] = val; 994f0b5e634SDaniel Mack cnt++; 995f0b5e634SDaniel Mack } 996f0b5e634SDaniel Mack return 0; 997f0b5e634SDaniel Mack } else { 998f0b5e634SDaniel Mack /* master channel */ 999f0b5e634SDaniel Mack err = get_cur_mix_value(cval, 0, 0, &val); 1000f0b5e634SDaniel Mack if (err < 0) 1001f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1002f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1003f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1004f0b5e634SDaniel Mack } 1005f0b5e634SDaniel Mack return 0; 1006f0b5e634SDaniel Mack } 1007f0b5e634SDaniel Mack 1008f0b5e634SDaniel Mack /* put the current value to feature/mixer unit */ 1009f0b5e634SDaniel Mack static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1010f0b5e634SDaniel Mack { 1011f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1012f0b5e634SDaniel Mack int c, cnt, val, oval, err; 1013f0b5e634SDaniel Mack int changed = 0; 1014f0b5e634SDaniel Mack 1015f0b5e634SDaniel Mack if (cval->cmask) { 1016f0b5e634SDaniel Mack cnt = 0; 1017f0b5e634SDaniel Mack for (c = 0; c < MAX_CHANNELS; c++) { 1018f0b5e634SDaniel Mack if (!(cval->cmask & (1 << c))) 1019f0b5e634SDaniel Mack continue; 1020f0b5e634SDaniel Mack err = get_cur_mix_value(cval, c + 1, cnt, &oval); 1021f0b5e634SDaniel Mack if (err < 0) 1022f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1023f0b5e634SDaniel Mack val = ucontrol->value.integer.value[cnt]; 1024f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1025f0b5e634SDaniel Mack if (oval != val) { 1026f0b5e634SDaniel Mack set_cur_mix_value(cval, c + 1, cnt, val); 1027f0b5e634SDaniel Mack changed = 1; 1028f0b5e634SDaniel Mack } 1029f0b5e634SDaniel Mack cnt++; 1030f0b5e634SDaniel Mack } 1031f0b5e634SDaniel Mack } else { 1032f0b5e634SDaniel Mack /* master channel */ 1033f0b5e634SDaniel Mack err = get_cur_mix_value(cval, 0, 0, &oval); 1034f0b5e634SDaniel Mack if (err < 0) 1035f0b5e634SDaniel Mack return cval->mixer->ignore_ctl_error ? 0 : err; 1036f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1037f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1038f0b5e634SDaniel Mack if (val != oval) { 1039f0b5e634SDaniel Mack set_cur_mix_value(cval, 0, 0, val); 1040f0b5e634SDaniel Mack changed = 1; 1041f0b5e634SDaniel Mack } 1042f0b5e634SDaniel Mack } 1043f0b5e634SDaniel Mack return changed; 1044f0b5e634SDaniel Mack } 1045f0b5e634SDaniel Mack 1046f0b5e634SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl = { 1047f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1048f0b5e634SDaniel Mack .name = "", /* will be filled later manually */ 1049f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1050f0b5e634SDaniel Mack .get = mixer_ctl_feature_get, 1051f0b5e634SDaniel Mack .put = mixer_ctl_feature_put, 1052f0b5e634SDaniel Mack }; 1053f0b5e634SDaniel Mack 105423caaf19SDaniel Mack /* the read-only variant */ 105523caaf19SDaniel Mack static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { 105623caaf19SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 105723caaf19SDaniel Mack .name = "", /* will be filled later manually */ 105823caaf19SDaniel Mack .info = mixer_ctl_feature_info, 105923caaf19SDaniel Mack .get = mixer_ctl_feature_get, 106023caaf19SDaniel Mack .put = NULL, 106123caaf19SDaniel Mack }; 106223caaf19SDaniel Mack 10639e38658fSDaniel Mack /* This symbol is exported in order to allow the mixer quirks to 10649e38658fSDaniel Mack * hook up to the standard feature unit control mechanism */ 10659e38658fSDaniel Mack struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; 1066f0b5e634SDaniel Mack 1067f0b5e634SDaniel Mack /* 1068f0b5e634SDaniel Mack * build a feature control 1069f0b5e634SDaniel Mack */ 1070f0b5e634SDaniel Mack 1071f0b5e634SDaniel Mack static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) 1072f0b5e634SDaniel Mack { 1073f0b5e634SDaniel Mack return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); 1074f0b5e634SDaniel Mack } 1075f0b5e634SDaniel Mack 107699fc8645SDaniel Mack static void build_feature_ctl(struct mixer_build *state, void *raw_desc, 1077f0b5e634SDaniel Mack unsigned int ctl_mask, int control, 107823caaf19SDaniel Mack struct usb_audio_term *iterm, int unitid, 1079a6a33259SDaniel Mack int readonly_mask) 1080f0b5e634SDaniel Mack { 108199fc8645SDaniel Mack struct uac_feature_unit_descriptor *desc = raw_desc; 1082f0b5e634SDaniel Mack unsigned int len = 0; 1083f0b5e634SDaniel Mack int mapped_name = 0; 108499fc8645SDaniel Mack int nameid = uac_feature_unit_iFeature(desc); 1085f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1086f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1087f0b5e634SDaniel Mack const struct usbmix_name_map *map; 108880acefffSAlexey Fisher unsigned int range; 1089f0b5e634SDaniel Mack 1090f0b5e634SDaniel Mack control++; /* change from zero-based to 1-based value */ 1091f0b5e634SDaniel Mack 109265f25da4SDaniel Mack if (control == UAC_FU_GRAPHIC_EQUALIZER) { 1093f0b5e634SDaniel Mack /* FIXME: not supported yet */ 1094f0b5e634SDaniel Mack return; 1095f0b5e634SDaniel Mack } 1096f0b5e634SDaniel Mack 1097f0b5e634SDaniel Mack map = find_map(state, unitid, control); 1098f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1099f0b5e634SDaniel Mack return; 1100f0b5e634SDaniel Mack 1101f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1102f0b5e634SDaniel Mack if (! cval) { 1103f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1104f0b5e634SDaniel Mack return; 1105f0b5e634SDaniel Mack } 1106f0b5e634SDaniel Mack cval->mixer = state->mixer; 1107f0b5e634SDaniel Mack cval->id = unitid; 1108f0b5e634SDaniel Mack cval->control = control; 1109f0b5e634SDaniel Mack cval->cmask = ctl_mask; 1110f0b5e634SDaniel Mack cval->val_type = audio_feature_info[control-1].type; 1111a6a33259SDaniel Mack if (ctl_mask == 0) { 1112f0b5e634SDaniel Mack cval->channels = 1; /* master channel */ 1113a6a33259SDaniel Mack cval->master_readonly = readonly_mask; 1114a6a33259SDaniel Mack } else { 1115f0b5e634SDaniel Mack int i, c = 0; 1116f0b5e634SDaniel Mack for (i = 0; i < 16; i++) 1117f0b5e634SDaniel Mack if (ctl_mask & (1 << i)) 1118f0b5e634SDaniel Mack c++; 1119f0b5e634SDaniel Mack cval->channels = c; 1120a6a33259SDaniel Mack cval->ch_readonly = readonly_mask; 1121f0b5e634SDaniel Mack } 1122f0b5e634SDaniel Mack 1123a6a33259SDaniel Mack /* if all channels in the mask are marked read-only, make the control 1124a6a33259SDaniel Mack * read-only. set_cur_mix_value() will check the mask again and won't 1125a6a33259SDaniel Mack * issue write commands to read-only channels. */ 1126a6a33259SDaniel Mack if (cval->channels == readonly_mask) 112723caaf19SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); 112823caaf19SDaniel Mack else 1129f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 113023caaf19SDaniel Mack 1131f0b5e634SDaniel Mack if (! kctl) { 1132f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1133f0b5e634SDaniel Mack kfree(cval); 1134f0b5e634SDaniel Mack return; 1135f0b5e634SDaniel Mack } 1136f0b5e634SDaniel Mack kctl->private_free = usb_mixer_elem_free; 1137f0b5e634SDaniel Mack 1138f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1139f0b5e634SDaniel Mack mapped_name = len != 0; 1140f0b5e634SDaniel Mack if (! len && nameid) 1141f0b5e634SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, 1142f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name)); 1143f0b5e634SDaniel Mack 1144f0b5e634SDaniel Mack switch (control) { 114565f25da4SDaniel Mack case UAC_FU_MUTE: 114665f25da4SDaniel Mack case UAC_FU_VOLUME: 1147f0b5e634SDaniel Mack /* determine the control name. the rule is: 1148f0b5e634SDaniel Mack * - if a name id is given in descriptor, use it. 1149f0b5e634SDaniel Mack * - if the connected input can be determined, then use the name 1150f0b5e634SDaniel Mack * of terminal type. 1151f0b5e634SDaniel Mack * - if the connected output can be determined, use it. 1152f0b5e634SDaniel Mack * - otherwise, anonymous name. 1153f0b5e634SDaniel Mack */ 1154f0b5e634SDaniel Mack if (! len) { 1155f0b5e634SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); 1156f0b5e634SDaniel Mack if (! len) 1157f0b5e634SDaniel Mack len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); 1158f0b5e634SDaniel Mack if (! len) 1159f0b5e634SDaniel Mack len = snprintf(kctl->id.name, sizeof(kctl->id.name), 1160f0b5e634SDaniel Mack "Feature %d", unitid); 1161f0b5e634SDaniel Mack } 1162f0b5e634SDaniel Mack /* determine the stream direction: 1163f0b5e634SDaniel Mack * if the connected output is USB stream, then it's likely a 1164f0b5e634SDaniel Mack * capture stream. otherwise it should be playback (hopefully :) 1165f0b5e634SDaniel Mack */ 1166f0b5e634SDaniel Mack if (! mapped_name && ! (state->oterm.type >> 16)) { 1167f0b5e634SDaniel Mack if ((state->oterm.type & 0xff00) == 0x0100) { 1168f0b5e634SDaniel Mack len = append_ctl_name(kctl, " Capture"); 1169f0b5e634SDaniel Mack } else { 1170f0b5e634SDaniel Mack len = append_ctl_name(kctl, " Playback"); 1171f0b5e634SDaniel Mack } 1172f0b5e634SDaniel Mack } 117365f25da4SDaniel Mack append_ctl_name(kctl, control == UAC_FU_MUTE ? 1174f0b5e634SDaniel Mack " Switch" : " Volume"); 1175e182534dSTakashi Iwai break; 1176e182534dSTakashi Iwai default: 1177e182534dSTakashi Iwai if (! len) 1178e182534dSTakashi Iwai strlcpy(kctl->id.name, audio_feature_info[control-1].name, 1179e182534dSTakashi Iwai sizeof(kctl->id.name)); 1180e182534dSTakashi Iwai break; 1181e182534dSTakashi Iwai } 1182e182534dSTakashi Iwai 1183e182534dSTakashi Iwai /* get min/max values */ 1184e182534dSTakashi Iwai get_min_max_with_quirks(cval, 0, kctl); 1185e182534dSTakashi Iwai 118665f25da4SDaniel Mack if (control == UAC_FU_VOLUME) { 118759bb7f0eSTakashi Iwai check_mapped_dB(map, cval); 118838b65190STakashi Iwai if (cval->dBmin < cval->dBmax || !cval->initialized) { 1189285de9c0SFelix Homann kctl->tlv.c = snd_usb_mixer_vol_tlv; 1190f0b5e634SDaniel Mack kctl->vd[0].access |= 1191f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_READ | 1192f0b5e634SDaniel Mack SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 119359bb7f0eSTakashi Iwai } 1194f0b5e634SDaniel Mack } 1195f0b5e634SDaniel Mack 119680acefffSAlexey Fisher range = (cval->max - cval->min) / cval->res; 119780acefffSAlexey Fisher /* Are there devices with volume range more than 255? I use a bit more 119880acefffSAlexey Fisher * to be sure. 384 is a resolution magic number found on Logitech 119980acefffSAlexey Fisher * devices. It will definitively catch all buggy Logitech devices. 120080acefffSAlexey Fisher */ 120180acefffSAlexey Fisher if (range > 384) { 120280acefffSAlexey Fisher snd_printk(KERN_WARNING "usb_audio: Warning! Unlikely big " 120380acefffSAlexey Fisher "volume range (=%u), cval->res is probably wrong.", 120480acefffSAlexey Fisher range); 120580acefffSAlexey Fisher snd_printk(KERN_WARNING "usb_audio: [%d] FU [%s] ch = %d, " 120680acefffSAlexey Fisher "val = %d/%d/%d", cval->id, 120780acefffSAlexey Fisher kctl->id.name, cval->channels, 120880acefffSAlexey Fisher cval->min, cval->max, cval->res); 120980acefffSAlexey Fisher } 121080acefffSAlexey Fisher 1211f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", 1212f0b5e634SDaniel Mack cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); 1213ef9d5970SDaniel Mack snd_usb_mixer_add_control(state->mixer, kctl); 1214f0b5e634SDaniel Mack } 1215f0b5e634SDaniel Mack 1216f0b5e634SDaniel Mack 1217f0b5e634SDaniel Mack 1218f0b5e634SDaniel Mack /* 1219f0b5e634SDaniel Mack * parse a feature unit 1220f0b5e634SDaniel Mack * 122125985edcSLucas De Marchi * most of controls are defined here. 1222f0b5e634SDaniel Mack */ 1223f0b5e634SDaniel Mack static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) 1224f0b5e634SDaniel Mack { 1225f0b5e634SDaniel Mack int channels, i, j; 1226f0b5e634SDaniel Mack struct usb_audio_term iterm; 1227f0b5e634SDaniel Mack unsigned int master_bits, first_ch_bits; 1228f0b5e634SDaniel Mack int err, csize; 122923caaf19SDaniel Mack struct uac_feature_unit_descriptor *hdr = _ftr; 123023caaf19SDaniel Mack __u8 *bmaControls; 1231f0b5e634SDaniel Mack 123223caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 123323caaf19SDaniel Mack csize = hdr->bControlSize; 123460c961a9SNicolai Krakowiak if (!csize) { 123560c961a9SNicolai Krakowiak snd_printdd(KERN_ERR "usbaudio: unit %u: " 123660c961a9SNicolai Krakowiak "invalid bControlSize == 0\n", unitid); 123760c961a9SNicolai Krakowiak return -EINVAL; 123860c961a9SNicolai Krakowiak } 123923caaf19SDaniel Mack channels = (hdr->bLength - 7) / csize - 1; 124023caaf19SDaniel Mack bmaControls = hdr->bmaControls; 124123caaf19SDaniel Mack } else { 124223caaf19SDaniel Mack struct uac2_feature_unit_descriptor *ftr = _ftr; 124323caaf19SDaniel Mack csize = 4; 1244e8d0fee7SDaniel Mack channels = (hdr->bLength - 6) / 4 - 1; 124523caaf19SDaniel Mack bmaControls = ftr->bmaControls; 124623caaf19SDaniel Mack } 124723caaf19SDaniel Mack 124823caaf19SDaniel Mack if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { 1249f0b5e634SDaniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); 1250f0b5e634SDaniel Mack return -EINVAL; 1251f0b5e634SDaniel Mack } 1252f0b5e634SDaniel Mack 1253f0b5e634SDaniel Mack /* parse the source unit */ 125423caaf19SDaniel Mack if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) 1255f0b5e634SDaniel Mack return err; 1256f0b5e634SDaniel Mack 1257f0b5e634SDaniel Mack /* determine the input source type and name */ 125823caaf19SDaniel Mack if (check_input_term(state, hdr->bSourceID, &iterm) < 0) 1259f0b5e634SDaniel Mack return -EINVAL; 1260f0b5e634SDaniel Mack 126123caaf19SDaniel Mack master_bits = snd_usb_combine_bytes(bmaControls, csize); 1262f0b5e634SDaniel Mack /* master configuration quirks */ 1263f0b5e634SDaniel Mack switch (state->chip->usb_id) { 1264f0b5e634SDaniel Mack case USB_ID(0x08bb, 0x2702): 1265f0b5e634SDaniel Mack snd_printk(KERN_INFO 1266f0b5e634SDaniel Mack "usbmixer: master volume quirk for PCM2702 chip\n"); 1267f0b5e634SDaniel Mack /* disable non-functional volume control */ 126865f25da4SDaniel Mack master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); 1269f0b5e634SDaniel Mack break; 1270*c1051439SDavid Henningsson case USB_ID(0x1130, 0xf211): 1271*c1051439SDavid Henningsson snd_printk(KERN_INFO 1272*c1051439SDavid Henningsson "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); 1273*c1051439SDavid Henningsson /* disable non-functional volume control */ 1274*c1051439SDavid Henningsson channels = 0; 1275*c1051439SDavid Henningsson break; 1276*c1051439SDavid Henningsson 1277f0b5e634SDaniel Mack } 1278f0b5e634SDaniel Mack if (channels > 0) 127923caaf19SDaniel Mack first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); 1280f0b5e634SDaniel Mack else 1281f0b5e634SDaniel Mack first_ch_bits = 0; 128223caaf19SDaniel Mack 128323caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) { 1284f0b5e634SDaniel Mack /* check all control types */ 1285f0b5e634SDaniel Mack for (i = 0; i < 10; i++) { 1286f0b5e634SDaniel Mack unsigned int ch_bits = 0; 1287f0b5e634SDaniel Mack for (j = 0; j < channels; j++) { 128823caaf19SDaniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1289f0b5e634SDaniel Mack if (mask & (1 << i)) 1290f0b5e634SDaniel Mack ch_bits |= (1 << j); 1291f0b5e634SDaniel Mack } 129223caaf19SDaniel Mack /* audio class v1 controls are never read-only */ 1293f0b5e634SDaniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 129423caaf19SDaniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); 1295f0b5e634SDaniel Mack if (master_bits & (1 << i)) 129623caaf19SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); 129723caaf19SDaniel Mack } 129823caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 1299d09c06c6STakashi Iwai for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { 130023caaf19SDaniel Mack unsigned int ch_bits = 0; 130123caaf19SDaniel Mack unsigned int ch_read_only = 0; 130223caaf19SDaniel Mack 130323caaf19SDaniel Mack for (j = 0; j < channels; j++) { 130423caaf19SDaniel Mack unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); 1305dcbe7bcfSDaniel Mack if (uac2_control_is_readable(mask, i)) { 130623caaf19SDaniel Mack ch_bits |= (1 << j); 1307dcbe7bcfSDaniel Mack if (!uac2_control_is_writeable(mask, i)) 130823caaf19SDaniel Mack ch_read_only |= (1 << j); 130923caaf19SDaniel Mack } 131023caaf19SDaniel Mack } 131123caaf19SDaniel Mack 1312a6a33259SDaniel Mack /* NOTE: build_feature_ctl() will mark the control read-only if all channels 1313a6a33259SDaniel Mack * are marked read-only in the descriptors. Otherwise, the control will be 1314a6a33259SDaniel Mack * reported as writeable, but the driver will not actually issue a write 1315a6a33259SDaniel Mack * command for read-only channels */ 131623caaf19SDaniel Mack if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ 1317a6a33259SDaniel Mack build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); 1318dcbe7bcfSDaniel Mack if (uac2_control_is_readable(master_bits, i)) 131923caaf19SDaniel Mack build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 1320dcbe7bcfSDaniel Mack !uac2_control_is_writeable(master_bits, i)); 132123caaf19SDaniel Mack } 1322f0b5e634SDaniel Mack } 1323f0b5e634SDaniel Mack 1324f0b5e634SDaniel Mack return 0; 1325f0b5e634SDaniel Mack } 1326f0b5e634SDaniel Mack 1327f0b5e634SDaniel Mack 1328f0b5e634SDaniel Mack /* 1329f0b5e634SDaniel Mack * Mixer Unit 1330f0b5e634SDaniel Mack */ 1331f0b5e634SDaniel Mack 1332f0b5e634SDaniel Mack /* 1333f0b5e634SDaniel Mack * build a mixer unit control 1334f0b5e634SDaniel Mack * 1335f0b5e634SDaniel Mack * the callbacks are identical with feature unit. 1336f0b5e634SDaniel Mack * input channel number (zero based) is given in control field instead. 1337f0b5e634SDaniel Mack */ 1338f0b5e634SDaniel Mack 133999fc8645SDaniel Mack static void build_mixer_unit_ctl(struct mixer_build *state, 134099fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc, 1341f0b5e634SDaniel Mack int in_pin, int in_ch, int unitid, 1342f0b5e634SDaniel Mack struct usb_audio_term *iterm) 1343f0b5e634SDaniel Mack { 1344f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 134599fc8645SDaniel Mack unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); 1346f0b5e634SDaniel Mack unsigned int i, len; 1347f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1348f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1349f0b5e634SDaniel Mack 1350f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 1351f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1352f0b5e634SDaniel Mack return; 1353f0b5e634SDaniel Mack 1354f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1355f0b5e634SDaniel Mack if (! cval) 1356f0b5e634SDaniel Mack return; 1357f0b5e634SDaniel Mack 1358f0b5e634SDaniel Mack cval->mixer = state->mixer; 1359f0b5e634SDaniel Mack cval->id = unitid; 1360f0b5e634SDaniel Mack cval->control = in_ch + 1; /* based on 1 */ 1361f0b5e634SDaniel Mack cval->val_type = USB_MIXER_S16; 1362f0b5e634SDaniel Mack for (i = 0; i < num_outs; i++) { 136323caaf19SDaniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { 1364f0b5e634SDaniel Mack cval->cmask |= (1 << i); 1365f0b5e634SDaniel Mack cval->channels++; 1366f0b5e634SDaniel Mack } 1367f0b5e634SDaniel Mack } 1368f0b5e634SDaniel Mack 1369f0b5e634SDaniel Mack /* get min/max values */ 1370f0b5e634SDaniel Mack get_min_max(cval, 0); 1371f0b5e634SDaniel Mack 1372f0b5e634SDaniel Mack kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); 1373f0b5e634SDaniel Mack if (! kctl) { 1374f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1375f0b5e634SDaniel Mack kfree(cval); 1376f0b5e634SDaniel Mack return; 1377f0b5e634SDaniel Mack } 1378f0b5e634SDaniel Mack kctl->private_free = usb_mixer_elem_free; 1379f0b5e634SDaniel Mack 1380f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1381f0b5e634SDaniel Mack if (! len) 1382f0b5e634SDaniel Mack len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); 1383f0b5e634SDaniel Mack if (! len) 1384f0b5e634SDaniel Mack len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); 1385f0b5e634SDaniel Mack append_ctl_name(kctl, " Volume"); 1386f0b5e634SDaniel Mack 1387f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", 1388f0b5e634SDaniel Mack cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 1389ef9d5970SDaniel Mack snd_usb_mixer_add_control(state->mixer, kctl); 1390f0b5e634SDaniel Mack } 1391f0b5e634SDaniel Mack 1392f0b5e634SDaniel Mack 1393f0b5e634SDaniel Mack /* 1394f0b5e634SDaniel Mack * parse a mixer unit 1395f0b5e634SDaniel Mack */ 139699fc8645SDaniel Mack static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) 1397f0b5e634SDaniel Mack { 139899fc8645SDaniel Mack struct uac_mixer_unit_descriptor *desc = raw_desc; 1399f0b5e634SDaniel Mack struct usb_audio_term iterm; 1400f0b5e634SDaniel Mack int input_pins, num_ins, num_outs; 1401f0b5e634SDaniel Mack int pin, ich, err; 1402f0b5e634SDaniel Mack 140399fc8645SDaniel Mack if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { 1404f0b5e634SDaniel Mack snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); 1405f0b5e634SDaniel Mack return -EINVAL; 1406f0b5e634SDaniel Mack } 1407f0b5e634SDaniel Mack /* no bmControls field (e.g. Maya44) -> ignore */ 140899fc8645SDaniel Mack if (desc->bLength <= 10 + input_pins) { 1409f0b5e634SDaniel Mack snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); 1410f0b5e634SDaniel Mack return 0; 1411f0b5e634SDaniel Mack } 1412f0b5e634SDaniel Mack 1413f0b5e634SDaniel Mack num_ins = 0; 1414f0b5e634SDaniel Mack ich = 0; 1415f0b5e634SDaniel Mack for (pin = 0; pin < input_pins; pin++) { 141699fc8645SDaniel Mack err = parse_audio_unit(state, desc->baSourceID[pin]); 1417f0b5e634SDaniel Mack if (err < 0) 1418284a8dd6SMark Hills continue; 141999fc8645SDaniel Mack err = check_input_term(state, desc->baSourceID[pin], &iterm); 1420f0b5e634SDaniel Mack if (err < 0) 1421f0b5e634SDaniel Mack return err; 1422f0b5e634SDaniel Mack num_ins += iterm.channels; 1423f0b5e634SDaniel Mack for (; ich < num_ins; ++ich) { 1424f0b5e634SDaniel Mack int och, ich_has_controls = 0; 1425f0b5e634SDaniel Mack 1426f0b5e634SDaniel Mack for (och = 0; och < num_outs; ++och) { 142723caaf19SDaniel Mack if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), 1428f0b5e634SDaniel Mack ich, och, num_outs)) { 1429f0b5e634SDaniel Mack ich_has_controls = 1; 1430f0b5e634SDaniel Mack break; 1431f0b5e634SDaniel Mack } 1432f0b5e634SDaniel Mack } 1433f0b5e634SDaniel Mack if (ich_has_controls) 1434f0b5e634SDaniel Mack build_mixer_unit_ctl(state, desc, pin, ich, 1435f0b5e634SDaniel Mack unitid, &iterm); 1436f0b5e634SDaniel Mack } 1437f0b5e634SDaniel Mack } 1438f0b5e634SDaniel Mack return 0; 1439f0b5e634SDaniel Mack } 1440f0b5e634SDaniel Mack 1441f0b5e634SDaniel Mack 1442f0b5e634SDaniel Mack /* 1443f0b5e634SDaniel Mack * Processing Unit / Extension Unit 1444f0b5e634SDaniel Mack */ 1445f0b5e634SDaniel Mack 1446f0b5e634SDaniel Mack /* get callback for processing/extension unit */ 1447f0b5e634SDaniel Mack static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1448f0b5e634SDaniel Mack { 1449f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1450f0b5e634SDaniel Mack int err, val; 1451f0b5e634SDaniel Mack 1452f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 1453f0b5e634SDaniel Mack if (err < 0 && cval->mixer->ignore_ctl_error) { 1454f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = cval->min; 1455f0b5e634SDaniel Mack return 0; 1456f0b5e634SDaniel Mack } 1457f0b5e634SDaniel Mack if (err < 0) 1458f0b5e634SDaniel Mack return err; 1459f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1460f0b5e634SDaniel Mack ucontrol->value.integer.value[0] = val; 1461f0b5e634SDaniel Mack return 0; 1462f0b5e634SDaniel Mack } 1463f0b5e634SDaniel Mack 1464f0b5e634SDaniel Mack /* put callback for processing/extension unit */ 1465f0b5e634SDaniel Mack static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1466f0b5e634SDaniel Mack { 1467f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1468f0b5e634SDaniel Mack int val, oval, err; 1469f0b5e634SDaniel Mack 1470f0b5e634SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 1471f0b5e634SDaniel Mack if (err < 0) { 1472f0b5e634SDaniel Mack if (cval->mixer->ignore_ctl_error) 1473f0b5e634SDaniel Mack return 0; 1474f0b5e634SDaniel Mack return err; 1475f0b5e634SDaniel Mack } 1476f0b5e634SDaniel Mack val = ucontrol->value.integer.value[0]; 1477f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1478f0b5e634SDaniel Mack if (val != oval) { 1479f0b5e634SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 1480f0b5e634SDaniel Mack return 1; 1481f0b5e634SDaniel Mack } 1482f0b5e634SDaniel Mack return 0; 1483f0b5e634SDaniel Mack } 1484f0b5e634SDaniel Mack 1485f0b5e634SDaniel Mack /* alsa control interface for processing/extension unit */ 1486f0b5e634SDaniel Mack static struct snd_kcontrol_new mixer_procunit_ctl = { 1487f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1488f0b5e634SDaniel Mack .name = "", /* will be filled later */ 1489f0b5e634SDaniel Mack .info = mixer_ctl_feature_info, 1490f0b5e634SDaniel Mack .get = mixer_ctl_procunit_get, 1491f0b5e634SDaniel Mack .put = mixer_ctl_procunit_put, 1492f0b5e634SDaniel Mack }; 1493f0b5e634SDaniel Mack 1494f0b5e634SDaniel Mack 1495f0b5e634SDaniel Mack /* 1496f0b5e634SDaniel Mack * predefined data for processing units 1497f0b5e634SDaniel Mack */ 1498f0b5e634SDaniel Mack struct procunit_value_info { 1499f0b5e634SDaniel Mack int control; 1500f0b5e634SDaniel Mack char *suffix; 1501f0b5e634SDaniel Mack int val_type; 1502f0b5e634SDaniel Mack int min_value; 1503f0b5e634SDaniel Mack }; 1504f0b5e634SDaniel Mack 1505f0b5e634SDaniel Mack struct procunit_info { 1506f0b5e634SDaniel Mack int type; 1507f0b5e634SDaniel Mack char *name; 1508f0b5e634SDaniel Mack struct procunit_value_info *values; 1509f0b5e634SDaniel Mack }; 1510f0b5e634SDaniel Mack 1511f0b5e634SDaniel Mack static struct procunit_value_info updown_proc_info[] = { 151265f25da4SDaniel Mack { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 151365f25da4SDaniel Mack { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1514f0b5e634SDaniel Mack { 0 } 1515f0b5e634SDaniel Mack }; 1516f0b5e634SDaniel Mack static struct procunit_value_info prologic_proc_info[] = { 151765f25da4SDaniel Mack { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 151865f25da4SDaniel Mack { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, 1519f0b5e634SDaniel Mack { 0 } 1520f0b5e634SDaniel Mack }; 1521f0b5e634SDaniel Mack static struct procunit_value_info threed_enh_proc_info[] = { 152265f25da4SDaniel Mack { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 152365f25da4SDaniel Mack { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, 1524f0b5e634SDaniel Mack { 0 } 1525f0b5e634SDaniel Mack }; 1526f0b5e634SDaniel Mack static struct procunit_value_info reverb_proc_info[] = { 152765f25da4SDaniel Mack { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 152865f25da4SDaniel Mack { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, 152965f25da4SDaniel Mack { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, 153065f25da4SDaniel Mack { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, 1531f0b5e634SDaniel Mack { 0 } 1532f0b5e634SDaniel Mack }; 1533f0b5e634SDaniel Mack static struct procunit_value_info chorus_proc_info[] = { 153465f25da4SDaniel Mack { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 153565f25da4SDaniel Mack { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, 153665f25da4SDaniel Mack { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, 153765f25da4SDaniel Mack { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, 1538f0b5e634SDaniel Mack { 0 } 1539f0b5e634SDaniel Mack }; 1540f0b5e634SDaniel Mack static struct procunit_value_info dcr_proc_info[] = { 154165f25da4SDaniel Mack { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, 154265f25da4SDaniel Mack { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, 154365f25da4SDaniel Mack { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, 154465f25da4SDaniel Mack { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, 154565f25da4SDaniel Mack { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, 154665f25da4SDaniel Mack { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, 1547f0b5e634SDaniel Mack { 0 } 1548f0b5e634SDaniel Mack }; 1549f0b5e634SDaniel Mack 1550f0b5e634SDaniel Mack static struct procunit_info procunits[] = { 155165f25da4SDaniel Mack { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, 155265f25da4SDaniel Mack { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, 155365f25da4SDaniel Mack { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, 155465f25da4SDaniel Mack { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, 155565f25da4SDaniel Mack { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, 155665f25da4SDaniel Mack { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, 1557f0b5e634SDaniel Mack { 0 }, 1558f0b5e634SDaniel Mack }; 1559f0b5e634SDaniel Mack /* 1560f0b5e634SDaniel Mack * predefined data for extension units 1561f0b5e634SDaniel Mack */ 1562f0b5e634SDaniel Mack static struct procunit_value_info clock_rate_xu_info[] = { 1563f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, 1564f0b5e634SDaniel Mack { 0 } 1565f0b5e634SDaniel Mack }; 1566f0b5e634SDaniel Mack static struct procunit_value_info clock_source_xu_info[] = { 1567f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, 1568f0b5e634SDaniel Mack { 0 } 1569f0b5e634SDaniel Mack }; 1570f0b5e634SDaniel Mack static struct procunit_value_info spdif_format_xu_info[] = { 1571f0b5e634SDaniel Mack { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, 1572f0b5e634SDaniel Mack { 0 } 1573f0b5e634SDaniel Mack }; 1574f0b5e634SDaniel Mack static struct procunit_value_info soft_limit_xu_info[] = { 1575f0b5e634SDaniel Mack { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, 1576f0b5e634SDaniel Mack { 0 } 1577f0b5e634SDaniel Mack }; 1578f0b5e634SDaniel Mack static struct procunit_info extunits[] = { 1579f0b5e634SDaniel Mack { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, 1580f0b5e634SDaniel Mack { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, 1581f0b5e634SDaniel Mack { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, 1582f0b5e634SDaniel Mack { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, 1583f0b5e634SDaniel Mack { 0 } 1584f0b5e634SDaniel Mack }; 1585f0b5e634SDaniel Mack /* 1586f0b5e634SDaniel Mack * build a processing/extension unit 1587f0b5e634SDaniel Mack */ 158899fc8645SDaniel Mack static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) 1589f0b5e634SDaniel Mack { 159099fc8645SDaniel Mack struct uac_processing_unit_descriptor *desc = raw_desc; 159199fc8645SDaniel Mack int num_ins = desc->bNrInPins; 1592f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1593f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1594f0b5e634SDaniel Mack int i, err, nameid, type, len; 1595f0b5e634SDaniel Mack struct procunit_info *info; 1596f0b5e634SDaniel Mack struct procunit_value_info *valinfo; 1597f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1598f0b5e634SDaniel Mack static struct procunit_value_info default_value_info[] = { 1599f0b5e634SDaniel Mack { 0x01, "Switch", USB_MIXER_BOOLEAN }, 1600f0b5e634SDaniel Mack { 0 } 1601f0b5e634SDaniel Mack }; 1602f0b5e634SDaniel Mack static struct procunit_info default_info = { 1603f0b5e634SDaniel Mack 0, NULL, default_value_info 1604f0b5e634SDaniel Mack }; 1605f0b5e634SDaniel Mack 160623caaf19SDaniel Mack if (desc->bLength < 13 || desc->bLength < 13 + num_ins || 160723caaf19SDaniel Mack desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { 1608f0b5e634SDaniel Mack snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); 1609f0b5e634SDaniel Mack return -EINVAL; 1610f0b5e634SDaniel Mack } 1611f0b5e634SDaniel Mack 1612f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) { 161399fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 1614f0b5e634SDaniel Mack return err; 1615f0b5e634SDaniel Mack } 1616f0b5e634SDaniel Mack 161799fc8645SDaniel Mack type = le16_to_cpu(desc->wProcessType); 1618f0b5e634SDaniel Mack for (info = list; info && info->type; info++) 1619f0b5e634SDaniel Mack if (info->type == type) 1620f0b5e634SDaniel Mack break; 1621f0b5e634SDaniel Mack if (! info || ! info->type) 1622f0b5e634SDaniel Mack info = &default_info; 1623f0b5e634SDaniel Mack 1624f0b5e634SDaniel Mack for (valinfo = info->values; valinfo->control; valinfo++) { 162523caaf19SDaniel Mack __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); 162699fc8645SDaniel Mack 162799fc8645SDaniel Mack if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) 1628f0b5e634SDaniel Mack continue; 1629f0b5e634SDaniel Mack map = find_map(state, unitid, valinfo->control); 1630f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1631f0b5e634SDaniel Mack continue; 1632f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1633f0b5e634SDaniel Mack if (! cval) { 1634f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1635f0b5e634SDaniel Mack return -ENOMEM; 1636f0b5e634SDaniel Mack } 1637f0b5e634SDaniel Mack cval->mixer = state->mixer; 1638f0b5e634SDaniel Mack cval->id = unitid; 1639f0b5e634SDaniel Mack cval->control = valinfo->control; 1640f0b5e634SDaniel Mack cval->val_type = valinfo->val_type; 1641f0b5e634SDaniel Mack cval->channels = 1; 1642f0b5e634SDaniel Mack 1643f0b5e634SDaniel Mack /* get min/max values */ 164465f25da4SDaniel Mack if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { 164523caaf19SDaniel Mack __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); 1646f0b5e634SDaniel Mack /* FIXME: hard-coded */ 1647f0b5e634SDaniel Mack cval->min = 1; 164899fc8645SDaniel Mack cval->max = control_spec[0]; 1649f0b5e634SDaniel Mack cval->res = 1; 1650f0b5e634SDaniel Mack cval->initialized = 1; 1651f0b5e634SDaniel Mack } else { 1652f0b5e634SDaniel Mack if (type == USB_XU_CLOCK_RATE) { 16531cdfa9f3SJoseph Teichman /* E-Mu USB 0404/0202/TrackerPre/0204 1654f0b5e634SDaniel Mack * samplerate control quirk 1655f0b5e634SDaniel Mack */ 1656f0b5e634SDaniel Mack cval->min = 0; 1657f0b5e634SDaniel Mack cval->max = 5; 1658f0b5e634SDaniel Mack cval->res = 1; 1659f0b5e634SDaniel Mack cval->initialized = 1; 1660f0b5e634SDaniel Mack } else 1661f0b5e634SDaniel Mack get_min_max(cval, valinfo->min_value); 1662f0b5e634SDaniel Mack } 1663f0b5e634SDaniel Mack 1664f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); 1665f0b5e634SDaniel Mack if (! kctl) { 1666f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1667f0b5e634SDaniel Mack kfree(cval); 1668f0b5e634SDaniel Mack return -ENOMEM; 1669f0b5e634SDaniel Mack } 1670f0b5e634SDaniel Mack kctl->private_free = usb_mixer_elem_free; 1671f0b5e634SDaniel Mack 1672f0b5e634SDaniel Mack if (check_mapped_name(map, kctl->id.name, 1673f0b5e634SDaniel Mack sizeof(kctl->id.name))) 1674f0b5e634SDaniel Mack /* nothing */ ; 1675f0b5e634SDaniel Mack else if (info->name) 1676f0b5e634SDaniel Mack strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); 1677f0b5e634SDaniel Mack else { 167823caaf19SDaniel Mack nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); 1679f0b5e634SDaniel Mack len = 0; 1680f0b5e634SDaniel Mack if (nameid) 1681f0b5e634SDaniel Mack len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 1682f0b5e634SDaniel Mack if (! len) 1683f0b5e634SDaniel Mack strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); 1684f0b5e634SDaniel Mack } 1685f0b5e634SDaniel Mack append_ctl_name(kctl, " "); 1686f0b5e634SDaniel Mack append_ctl_name(kctl, valinfo->suffix); 1687f0b5e634SDaniel Mack 1688f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", 1689f0b5e634SDaniel Mack cval->id, kctl->id.name, cval->channels, cval->min, cval->max); 1690ef9d5970SDaniel Mack if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) 1691f0b5e634SDaniel Mack return err; 1692f0b5e634SDaniel Mack } 1693f0b5e634SDaniel Mack return 0; 1694f0b5e634SDaniel Mack } 1695f0b5e634SDaniel Mack 1696f0b5e634SDaniel Mack 169799fc8645SDaniel Mack static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) 1698f0b5e634SDaniel Mack { 169999fc8645SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); 1700f0b5e634SDaniel Mack } 1701f0b5e634SDaniel Mack 170299fc8645SDaniel Mack static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) 1703f0b5e634SDaniel Mack { 170499fc8645SDaniel Mack /* Note that we parse extension units with processing unit descriptors. 170599fc8645SDaniel Mack * That's ok as the layout is the same */ 170699fc8645SDaniel Mack return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); 1707f0b5e634SDaniel Mack } 1708f0b5e634SDaniel Mack 1709f0b5e634SDaniel Mack 1710f0b5e634SDaniel Mack /* 1711f0b5e634SDaniel Mack * Selector Unit 1712f0b5e634SDaniel Mack */ 1713f0b5e634SDaniel Mack 1714f0b5e634SDaniel Mack /* info callback for selector unit 1715f0b5e634SDaniel Mack * use an enumerator type for routing 1716f0b5e634SDaniel Mack */ 1717f0b5e634SDaniel Mack static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1718f0b5e634SDaniel Mack { 1719f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 17202a1803a7SClemens Ladisch const char **itemlist = (const char **)kcontrol->private_value; 1721f0b5e634SDaniel Mack 1722f0b5e634SDaniel Mack if (snd_BUG_ON(!itemlist)) 1723f0b5e634SDaniel Mack return -EINVAL; 17242a1803a7SClemens Ladisch return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); 1725f0b5e634SDaniel Mack } 1726f0b5e634SDaniel Mack 1727f0b5e634SDaniel Mack /* get callback for selector unit */ 1728f0b5e634SDaniel Mack static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1729f0b5e634SDaniel Mack { 1730f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1731f0b5e634SDaniel Mack int val, err; 1732f0b5e634SDaniel Mack 173309414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &val); 1734f0b5e634SDaniel Mack if (err < 0) { 1735f0b5e634SDaniel Mack if (cval->mixer->ignore_ctl_error) { 1736f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = 0; 1737f0b5e634SDaniel Mack return 0; 1738f0b5e634SDaniel Mack } 1739f0b5e634SDaniel Mack return err; 1740f0b5e634SDaniel Mack } 1741f0b5e634SDaniel Mack val = get_relative_value(cval, val); 1742f0b5e634SDaniel Mack ucontrol->value.enumerated.item[0] = val; 1743f0b5e634SDaniel Mack return 0; 1744f0b5e634SDaniel Mack } 1745f0b5e634SDaniel Mack 1746f0b5e634SDaniel Mack /* put callback for selector unit */ 1747f0b5e634SDaniel Mack static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1748f0b5e634SDaniel Mack { 1749f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kcontrol->private_data; 1750f0b5e634SDaniel Mack int val, oval, err; 1751f0b5e634SDaniel Mack 175209414207SDaniel Mack err = get_cur_ctl_value(cval, cval->control << 8, &oval); 1753f0b5e634SDaniel Mack if (err < 0) { 1754f0b5e634SDaniel Mack if (cval->mixer->ignore_ctl_error) 1755f0b5e634SDaniel Mack return 0; 1756f0b5e634SDaniel Mack return err; 1757f0b5e634SDaniel Mack } 1758f0b5e634SDaniel Mack val = ucontrol->value.enumerated.item[0]; 1759f0b5e634SDaniel Mack val = get_abs_value(cval, val); 1760f0b5e634SDaniel Mack if (val != oval) { 176109414207SDaniel Mack set_cur_ctl_value(cval, cval->control << 8, val); 1762f0b5e634SDaniel Mack return 1; 1763f0b5e634SDaniel Mack } 1764f0b5e634SDaniel Mack return 0; 1765f0b5e634SDaniel Mack } 1766f0b5e634SDaniel Mack 1767f0b5e634SDaniel Mack /* alsa control interface for selector unit */ 1768f0b5e634SDaniel Mack static struct snd_kcontrol_new mixer_selectunit_ctl = { 1769f0b5e634SDaniel Mack .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1770f0b5e634SDaniel Mack .name = "", /* will be filled later */ 1771f0b5e634SDaniel Mack .info = mixer_ctl_selector_info, 1772f0b5e634SDaniel Mack .get = mixer_ctl_selector_get, 1773f0b5e634SDaniel Mack .put = mixer_ctl_selector_put, 1774f0b5e634SDaniel Mack }; 1775f0b5e634SDaniel Mack 1776f0b5e634SDaniel Mack 1777f0b5e634SDaniel Mack /* private free callback. 1778f0b5e634SDaniel Mack * free both private_data and private_value 1779f0b5e634SDaniel Mack */ 1780f0b5e634SDaniel Mack static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) 1781f0b5e634SDaniel Mack { 1782f0b5e634SDaniel Mack int i, num_ins = 0; 1783f0b5e634SDaniel Mack 1784f0b5e634SDaniel Mack if (kctl->private_data) { 1785f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval = kctl->private_data; 1786f0b5e634SDaniel Mack num_ins = cval->max; 1787f0b5e634SDaniel Mack kfree(cval); 1788f0b5e634SDaniel Mack kctl->private_data = NULL; 1789f0b5e634SDaniel Mack } 1790f0b5e634SDaniel Mack if (kctl->private_value) { 1791f0b5e634SDaniel Mack char **itemlist = (char **)kctl->private_value; 1792f0b5e634SDaniel Mack for (i = 0; i < num_ins; i++) 1793f0b5e634SDaniel Mack kfree(itemlist[i]); 1794f0b5e634SDaniel Mack kfree(itemlist); 1795f0b5e634SDaniel Mack kctl->private_value = 0; 1796f0b5e634SDaniel Mack } 1797f0b5e634SDaniel Mack } 1798f0b5e634SDaniel Mack 1799f0b5e634SDaniel Mack /* 1800f0b5e634SDaniel Mack * parse a selector unit 1801f0b5e634SDaniel Mack */ 180299fc8645SDaniel Mack static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) 1803f0b5e634SDaniel Mack { 180499fc8645SDaniel Mack struct uac_selector_unit_descriptor *desc = raw_desc; 1805f0b5e634SDaniel Mack unsigned int i, nameid, len; 1806f0b5e634SDaniel Mack int err; 1807f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 1808f0b5e634SDaniel Mack struct snd_kcontrol *kctl; 1809f0b5e634SDaniel Mack const struct usbmix_name_map *map; 1810f0b5e634SDaniel Mack char **namelist; 1811f0b5e634SDaniel Mack 181299fc8645SDaniel Mack if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { 1813f0b5e634SDaniel Mack snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); 1814f0b5e634SDaniel Mack return -EINVAL; 1815f0b5e634SDaniel Mack } 1816f0b5e634SDaniel Mack 181799fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 181899fc8645SDaniel Mack if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) 1819f0b5e634SDaniel Mack return err; 1820f0b5e634SDaniel Mack } 1821f0b5e634SDaniel Mack 182299fc8645SDaniel Mack if (desc->bNrInPins == 1) /* only one ? nonsense! */ 1823f0b5e634SDaniel Mack return 0; 1824f0b5e634SDaniel Mack 1825f0b5e634SDaniel Mack map = find_map(state, unitid, 0); 1826f0b5e634SDaniel Mack if (check_ignored_ctl(map)) 1827f0b5e634SDaniel Mack return 0; 1828f0b5e634SDaniel Mack 1829f0b5e634SDaniel Mack cval = kzalloc(sizeof(*cval), GFP_KERNEL); 1830f0b5e634SDaniel Mack if (! cval) { 1831f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1832f0b5e634SDaniel Mack return -ENOMEM; 1833f0b5e634SDaniel Mack } 1834f0b5e634SDaniel Mack cval->mixer = state->mixer; 1835f0b5e634SDaniel Mack cval->id = unitid; 1836f0b5e634SDaniel Mack cval->val_type = USB_MIXER_U8; 1837f0b5e634SDaniel Mack cval->channels = 1; 1838f0b5e634SDaniel Mack cval->min = 1; 183999fc8645SDaniel Mack cval->max = desc->bNrInPins; 1840f0b5e634SDaniel Mack cval->res = 1; 1841f0b5e634SDaniel Mack cval->initialized = 1; 1842f0b5e634SDaniel Mack 184309414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 184409414207SDaniel Mack cval->control = UAC2_CX_CLOCK_SELECTOR; 184509414207SDaniel Mack else 184609414207SDaniel Mack cval->control = 0; 184709414207SDaniel Mack 184899fc8645SDaniel Mack namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); 1849f0b5e634SDaniel Mack if (! namelist) { 1850f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc\n"); 1851f0b5e634SDaniel Mack kfree(cval); 1852f0b5e634SDaniel Mack return -ENOMEM; 1853f0b5e634SDaniel Mack } 1854f0b5e634SDaniel Mack #define MAX_ITEM_NAME_LEN 64 185599fc8645SDaniel Mack for (i = 0; i < desc->bNrInPins; i++) { 1856f0b5e634SDaniel Mack struct usb_audio_term iterm; 1857f0b5e634SDaniel Mack len = 0; 1858f0b5e634SDaniel Mack namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); 1859f0b5e634SDaniel Mack if (! namelist[i]) { 1860f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc\n"); 1861f0b5e634SDaniel Mack while (i--) 1862f0b5e634SDaniel Mack kfree(namelist[i]); 1863f0b5e634SDaniel Mack kfree(namelist); 1864f0b5e634SDaniel Mack kfree(cval); 1865f0b5e634SDaniel Mack return -ENOMEM; 1866f0b5e634SDaniel Mack } 1867f0b5e634SDaniel Mack len = check_mapped_selector_name(state, unitid, i, namelist[i], 1868f0b5e634SDaniel Mack MAX_ITEM_NAME_LEN); 186999fc8645SDaniel Mack if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) 1870f0b5e634SDaniel Mack len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); 1871f0b5e634SDaniel Mack if (! len) 1872f0b5e634SDaniel Mack sprintf(namelist[i], "Input %d", i); 1873f0b5e634SDaniel Mack } 1874f0b5e634SDaniel Mack 1875f0b5e634SDaniel Mack kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); 1876f0b5e634SDaniel Mack if (! kctl) { 1877f0b5e634SDaniel Mack snd_printk(KERN_ERR "cannot malloc kcontrol\n"); 1878f0b5e634SDaniel Mack kfree(namelist); 1879f0b5e634SDaniel Mack kfree(cval); 1880f0b5e634SDaniel Mack return -ENOMEM; 1881f0b5e634SDaniel Mack } 1882f0b5e634SDaniel Mack kctl->private_value = (unsigned long)namelist; 1883f0b5e634SDaniel Mack kctl->private_free = usb_mixer_selector_elem_free; 1884f0b5e634SDaniel Mack 188599fc8645SDaniel Mack nameid = uac_selector_unit_iSelector(desc); 1886f0b5e634SDaniel Mack len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); 1887f0b5e634SDaniel Mack if (len) 1888f0b5e634SDaniel Mack ; 1889f0b5e634SDaniel Mack else if (nameid) 1890f0b5e634SDaniel Mack snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); 1891f0b5e634SDaniel Mack else { 1892f0b5e634SDaniel Mack len = get_term_name(state, &state->oterm, 1893f0b5e634SDaniel Mack kctl->id.name, sizeof(kctl->id.name), 0); 1894f0b5e634SDaniel Mack if (! len) 1895f0b5e634SDaniel Mack strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); 1896f0b5e634SDaniel Mack 189709414207SDaniel Mack if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) 189809414207SDaniel Mack append_ctl_name(kctl, " Clock Source"); 189909414207SDaniel Mack else if ((state->oterm.type & 0xff00) == 0x0100) 1900f0b5e634SDaniel Mack append_ctl_name(kctl, " Capture Source"); 1901f0b5e634SDaniel Mack else 1902f0b5e634SDaniel Mack append_ctl_name(kctl, " Playback Source"); 1903f0b5e634SDaniel Mack } 1904f0b5e634SDaniel Mack 1905f0b5e634SDaniel Mack snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", 190699fc8645SDaniel Mack cval->id, kctl->id.name, desc->bNrInPins); 1907ef9d5970SDaniel Mack if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) 1908f0b5e634SDaniel Mack return err; 1909f0b5e634SDaniel Mack 1910f0b5e634SDaniel Mack return 0; 1911f0b5e634SDaniel Mack } 1912f0b5e634SDaniel Mack 1913f0b5e634SDaniel Mack 1914f0b5e634SDaniel Mack /* 1915f0b5e634SDaniel Mack * parse an audio unit recursively 1916f0b5e634SDaniel Mack */ 1917f0b5e634SDaniel Mack 1918f0b5e634SDaniel Mack static int parse_audio_unit(struct mixer_build *state, int unitid) 1919f0b5e634SDaniel Mack { 1920f0b5e634SDaniel Mack unsigned char *p1; 1921f0b5e634SDaniel Mack 1922f0b5e634SDaniel Mack if (test_and_set_bit(unitid, state->unitbitmap)) 1923f0b5e634SDaniel Mack return 0; /* the unit already visited */ 1924f0b5e634SDaniel Mack 1925f0b5e634SDaniel Mack p1 = find_audio_control_unit(state, unitid); 1926f0b5e634SDaniel Mack if (!p1) { 1927f0b5e634SDaniel Mack snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); 1928f0b5e634SDaniel Mack return -EINVAL; 1929f0b5e634SDaniel Mack } 1930f0b5e634SDaniel Mack 1931f0b5e634SDaniel Mack switch (p1[2]) { 1932f0b5e634SDaniel Mack case UAC_INPUT_TERMINAL: 193309414207SDaniel Mack case UAC2_CLOCK_SOURCE: 1934f0b5e634SDaniel Mack return 0; /* NOP */ 1935f0b5e634SDaniel Mack case UAC_MIXER_UNIT: 1936f0b5e634SDaniel Mack return parse_audio_mixer_unit(state, unitid, p1); 1937f0b5e634SDaniel Mack case UAC_SELECTOR_UNIT: 193809414207SDaniel Mack case UAC2_CLOCK_SELECTOR: 1939f0b5e634SDaniel Mack return parse_audio_selector_unit(state, unitid, p1); 1940f0b5e634SDaniel Mack case UAC_FEATURE_UNIT: 1941f0b5e634SDaniel Mack return parse_audio_feature_unit(state, unitid, p1); 194269da9bcbSDaniel Mack case UAC1_PROCESSING_UNIT: 194323caaf19SDaniel Mack /* UAC2_EFFECT_UNIT has the same value */ 194423caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) 1945f0b5e634SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 194623caaf19SDaniel Mack else 194723caaf19SDaniel Mack return 0; /* FIXME - effect units not implemented yet */ 194869da9bcbSDaniel Mack case UAC1_EXTENSION_UNIT: 194923caaf19SDaniel Mack /* UAC2_PROCESSING_UNIT_V2 has the same value */ 195023caaf19SDaniel Mack if (state->mixer->protocol == UAC_VERSION_1) 1951f0b5e634SDaniel Mack return parse_audio_extension_unit(state, unitid, p1); 195223caaf19SDaniel Mack else /* UAC_VERSION_2 */ 195323caaf19SDaniel Mack return parse_audio_processing_unit(state, unitid, p1); 1954f0b5e634SDaniel Mack default: 1955f0b5e634SDaniel Mack snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); 1956f0b5e634SDaniel Mack return -EINVAL; 1957f0b5e634SDaniel Mack } 1958f0b5e634SDaniel Mack } 1959f0b5e634SDaniel Mack 1960f0b5e634SDaniel Mack static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) 1961f0b5e634SDaniel Mack { 1962f0b5e634SDaniel Mack kfree(mixer->id_elems); 1963f0b5e634SDaniel Mack if (mixer->urb) { 1964f0b5e634SDaniel Mack kfree(mixer->urb->transfer_buffer); 1965f0b5e634SDaniel Mack usb_free_urb(mixer->urb); 1966f0b5e634SDaniel Mack } 1967f0b5e634SDaniel Mack usb_free_urb(mixer->rc_urb); 1968f0b5e634SDaniel Mack kfree(mixer->rc_setup_packet); 1969f0b5e634SDaniel Mack kfree(mixer); 1970f0b5e634SDaniel Mack } 1971f0b5e634SDaniel Mack 1972f0b5e634SDaniel Mack static int snd_usb_mixer_dev_free(struct snd_device *device) 1973f0b5e634SDaniel Mack { 1974f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = device->device_data; 1975f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 1976f0b5e634SDaniel Mack return 0; 1977f0b5e634SDaniel Mack } 1978f0b5e634SDaniel Mack 1979f0b5e634SDaniel Mack /* 1980f0b5e634SDaniel Mack * create mixer controls 1981f0b5e634SDaniel Mack * 1982f0b5e634SDaniel Mack * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers 1983f0b5e634SDaniel Mack */ 1984f0b5e634SDaniel Mack static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 1985f0b5e634SDaniel Mack { 1986f0b5e634SDaniel Mack struct mixer_build state; 1987f0b5e634SDaniel Mack int err; 1988f0b5e634SDaniel Mack const struct usbmix_ctl_map *map; 198923caaf19SDaniel Mack void *p; 1990f0b5e634SDaniel Mack 1991f0b5e634SDaniel Mack memset(&state, 0, sizeof(state)); 1992f0b5e634SDaniel Mack state.chip = mixer->chip; 1993f0b5e634SDaniel Mack state.mixer = mixer; 19941faa5d07SDaniel Mack state.buffer = mixer->hostif->extra; 19951faa5d07SDaniel Mack state.buflen = mixer->hostif->extralen; 1996f0b5e634SDaniel Mack 1997f0b5e634SDaniel Mack /* check the mapping table */ 1998f0b5e634SDaniel Mack for (map = usbmix_ctl_maps; map->id; map++) { 1999f0b5e634SDaniel Mack if (map->id == state.chip->usb_id) { 2000f0b5e634SDaniel Mack state.map = map->map; 2001f0b5e634SDaniel Mack state.selector_map = map->selector_map; 2002f0b5e634SDaniel Mack mixer->ignore_ctl_error = map->ignore_ctl_error; 2003f0b5e634SDaniel Mack break; 2004f0b5e634SDaniel Mack } 2005f0b5e634SDaniel Mack } 2006f0b5e634SDaniel Mack 200723caaf19SDaniel Mack p = NULL; 20081faa5d07SDaniel Mack while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, 20091faa5d07SDaniel Mack p, UAC_OUTPUT_TERMINAL)) != NULL) { 201023caaf19SDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 201169da9bcbSDaniel Mack struct uac1_output_terminal_descriptor *desc = p; 201223caaf19SDaniel Mack 201323caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 201423caaf19SDaniel Mack continue; /* invalid descriptor? */ 201523caaf19SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 201623caaf19SDaniel Mack state.oterm.id = desc->bTerminalID; 201723caaf19SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 201823caaf19SDaniel Mack state.oterm.name = desc->iTerminal; 201923caaf19SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 202023caaf19SDaniel Mack if (err < 0) 202123caaf19SDaniel Mack return err; 202223caaf19SDaniel Mack } else { /* UAC_VERSION_2 */ 202323caaf19SDaniel Mack struct uac2_output_terminal_descriptor *desc = p; 202423caaf19SDaniel Mack 202523caaf19SDaniel Mack if (desc->bLength < sizeof(*desc)) 2026f0b5e634SDaniel Mack continue; /* invalid descriptor? */ 2027f0b5e634SDaniel Mack set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ 2028f0b5e634SDaniel Mack state.oterm.id = desc->bTerminalID; 2029f0b5e634SDaniel Mack state.oterm.type = le16_to_cpu(desc->wTerminalType); 2030f0b5e634SDaniel Mack state.oterm.name = desc->iTerminal; 2031f0b5e634SDaniel Mack err = parse_audio_unit(&state, desc->bSourceID); 2032f0b5e634SDaniel Mack if (err < 0) 2033f0b5e634SDaniel Mack return err; 203409414207SDaniel Mack 203509414207SDaniel Mack /* for UAC2, use the same approach to also add the clock selectors */ 203609414207SDaniel Mack err = parse_audio_unit(&state, desc->bCSourceID); 203709414207SDaniel Mack if (err < 0) 203809414207SDaniel Mack return err; 2039f0b5e634SDaniel Mack } 204023caaf19SDaniel Mack } 204123caaf19SDaniel Mack 2042f0b5e634SDaniel Mack return 0; 2043f0b5e634SDaniel Mack } 2044f0b5e634SDaniel Mack 2045f0b5e634SDaniel Mack void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) 2046f0b5e634SDaniel Mack { 2047f0b5e634SDaniel Mack struct usb_mixer_elem_info *info; 2048f0b5e634SDaniel Mack 2049f0b5e634SDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) 2050f0b5e634SDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 2051f0b5e634SDaniel Mack info->elem_id); 2052f0b5e634SDaniel Mack } 2053f0b5e634SDaniel Mack 2054f0b5e634SDaniel Mack static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, 2055f0b5e634SDaniel Mack int unitid, 2056f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval) 2057f0b5e634SDaniel Mack { 2058f0b5e634SDaniel Mack static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", 2059f0b5e634SDaniel Mack "S8", "U8", "S16", "U16"}; 2060f0b5e634SDaniel Mack snd_iprintf(buffer, " Unit: %i\n", unitid); 2061f0b5e634SDaniel Mack if (cval->elem_id) 2062f0b5e634SDaniel Mack snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", 2063f0b5e634SDaniel Mack cval->elem_id->name, cval->elem_id->index); 2064f0b5e634SDaniel Mack snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " 2065f0b5e634SDaniel Mack "channels=%i, type=\"%s\"\n", cval->id, 2066f0b5e634SDaniel Mack cval->control, cval->cmask, cval->channels, 2067f0b5e634SDaniel Mack val_types[cval->val_type]); 2068f0b5e634SDaniel Mack snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", 2069f0b5e634SDaniel Mack cval->min, cval->max, cval->dBmin, cval->dBmax); 2070f0b5e634SDaniel Mack } 2071f0b5e634SDaniel Mack 2072f0b5e634SDaniel Mack static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, 2073f0b5e634SDaniel Mack struct snd_info_buffer *buffer) 2074f0b5e634SDaniel Mack { 2075f0b5e634SDaniel Mack struct snd_usb_audio *chip = entry->private_data; 2076f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2077f0b5e634SDaniel Mack struct usb_mixer_elem_info *cval; 2078f0b5e634SDaniel Mack int unitid; 2079f0b5e634SDaniel Mack 2080f0b5e634SDaniel Mack list_for_each_entry(mixer, &chip->mixer_list, list) { 2081f0b5e634SDaniel Mack snd_iprintf(buffer, 2082f0b5e634SDaniel Mack "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", 20833d8d4dcfSDaniel Mack chip->usb_id, snd_usb_ctrl_intf(chip), 2084f0b5e634SDaniel Mack mixer->ignore_ctl_error); 2085f0b5e634SDaniel Mack snd_iprintf(buffer, "Card: %s\n", chip->card->longname); 2086f0b5e634SDaniel Mack for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { 2087f0b5e634SDaniel Mack for (cval = mixer->id_elems[unitid]; cval; 2088f0b5e634SDaniel Mack cval = cval->next_id_elem) 2089f0b5e634SDaniel Mack snd_usb_mixer_dump_cval(buffer, unitid, cval); 2090f0b5e634SDaniel Mack } 2091f0b5e634SDaniel Mack } 2092f0b5e634SDaniel Mack } 2093f0b5e634SDaniel Mack 2094e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, 2095e213e9cfSDaniel Mack int attribute, int value, int index) 2096e213e9cfSDaniel Mack { 2097e213e9cfSDaniel Mack struct usb_mixer_elem_info *info; 2098e213e9cfSDaniel Mack __u8 unitid = (index >> 8) & 0xff; 2099e213e9cfSDaniel Mack __u8 control = (value >> 8) & 0xff; 2100e213e9cfSDaniel Mack __u8 channel = value & 0xff; 2101e213e9cfSDaniel Mack 2102e213e9cfSDaniel Mack if (channel >= MAX_CHANNELS) { 2103e213e9cfSDaniel Mack snd_printk(KERN_DEBUG "%s(): bogus channel number %d\n", 2104e213e9cfSDaniel Mack __func__, channel); 2105e213e9cfSDaniel Mack return; 2106e213e9cfSDaniel Mack } 2107e213e9cfSDaniel Mack 2108e213e9cfSDaniel Mack for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { 2109e213e9cfSDaniel Mack if (info->control != control) 2110e213e9cfSDaniel Mack continue; 2111e213e9cfSDaniel Mack 2112e213e9cfSDaniel Mack switch (attribute) { 2113e213e9cfSDaniel Mack case UAC2_CS_CUR: 2114e213e9cfSDaniel Mack /* invalidate cache, so the value is read from the device */ 2115e213e9cfSDaniel Mack if (channel) 2116e213e9cfSDaniel Mack info->cached &= ~(1 << channel); 2117e213e9cfSDaniel Mack else /* master channel */ 2118e213e9cfSDaniel Mack info->cached = 0; 2119e213e9cfSDaniel Mack 2120e213e9cfSDaniel Mack snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 2121e213e9cfSDaniel Mack info->elem_id); 2122e213e9cfSDaniel Mack break; 2123e213e9cfSDaniel Mack 2124e213e9cfSDaniel Mack case UAC2_CS_RANGE: 2125e213e9cfSDaniel Mack /* TODO */ 2126e213e9cfSDaniel Mack break; 2127e213e9cfSDaniel Mack 2128e213e9cfSDaniel Mack case UAC2_CS_MEM: 2129e213e9cfSDaniel Mack /* TODO */ 2130e213e9cfSDaniel Mack break; 2131e213e9cfSDaniel Mack 2132e213e9cfSDaniel Mack default: 2133e213e9cfSDaniel Mack snd_printk(KERN_DEBUG "unknown attribute %d in interrupt\n", 2134e213e9cfSDaniel Mack attribute); 2135e213e9cfSDaniel Mack break; 2136e213e9cfSDaniel Mack } /* switch */ 2137e213e9cfSDaniel Mack } 2138e213e9cfSDaniel Mack } 2139e213e9cfSDaniel Mack 2140e213e9cfSDaniel Mack static void snd_usb_mixer_interrupt(struct urb *urb) 2141f0b5e634SDaniel Mack { 2142f0b5e634SDaniel Mack struct usb_mixer_interface *mixer = urb->context; 2143e213e9cfSDaniel Mack int len = urb->actual_length; 2144edf7de31SOliver Neukum int ustatus = urb->status; 2145f0b5e634SDaniel Mack 2146edf7de31SOliver Neukum if (ustatus != 0) 2147e213e9cfSDaniel Mack goto requeue; 2148f0b5e634SDaniel Mack 2149e213e9cfSDaniel Mack if (mixer->protocol == UAC_VERSION_1) { 2150e213e9cfSDaniel Mack struct uac1_status_word *status; 2151e213e9cfSDaniel Mack 2152e213e9cfSDaniel Mack for (status = urb->transfer_buffer; 2153e213e9cfSDaniel Mack len >= sizeof(*status); 2154e213e9cfSDaniel Mack len -= sizeof(*status), status++) { 2155f0b5e634SDaniel Mack snd_printd(KERN_DEBUG "status interrupt: %02x %02x\n", 2156e213e9cfSDaniel Mack status->bStatusType, 2157e213e9cfSDaniel Mack status->bOriginator); 2158e213e9cfSDaniel Mack 2159f0b5e634SDaniel Mack /* ignore any notifications not from the control interface */ 2160e213e9cfSDaniel Mack if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != 2161e213e9cfSDaniel Mack UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) 2162f0b5e634SDaniel Mack continue; 2163e213e9cfSDaniel Mack 2164e213e9cfSDaniel Mack if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) 2165e213e9cfSDaniel Mack snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); 2166f0b5e634SDaniel Mack else 2167e213e9cfSDaniel Mack snd_usb_mixer_notify_id(mixer, status->bOriginator); 2168e213e9cfSDaniel Mack } 2169e213e9cfSDaniel Mack } else { /* UAC_VERSION_2 */ 2170e213e9cfSDaniel Mack struct uac2_interrupt_data_msg *msg; 2171e213e9cfSDaniel Mack 2172e213e9cfSDaniel Mack for (msg = urb->transfer_buffer; 2173e213e9cfSDaniel Mack len >= sizeof(*msg); 2174e213e9cfSDaniel Mack len -= sizeof(*msg), msg++) { 2175e213e9cfSDaniel Mack /* drop vendor specific and endpoint requests */ 2176e213e9cfSDaniel Mack if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || 2177e213e9cfSDaniel Mack (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) 2178e213e9cfSDaniel Mack continue; 2179e213e9cfSDaniel Mack 2180e213e9cfSDaniel Mack snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, 2181e213e9cfSDaniel Mack le16_to_cpu(msg->wValue), 2182e213e9cfSDaniel Mack le16_to_cpu(msg->wIndex)); 2183f0b5e634SDaniel Mack } 2184f0b5e634SDaniel Mack } 2185e213e9cfSDaniel Mack 2186e213e9cfSDaniel Mack requeue: 2187edf7de31SOliver Neukum if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { 2188f0b5e634SDaniel Mack urb->dev = mixer->chip->dev; 2189f0b5e634SDaniel Mack usb_submit_urb(urb, GFP_ATOMIC); 2190f0b5e634SDaniel Mack } 2191f0b5e634SDaniel Mack } 2192f0b5e634SDaniel Mack 2193edf7de31SOliver Neukum /* stop any bus activity of a mixer */ 2194edf7de31SOliver Neukum void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) 2195edf7de31SOliver Neukum { 2196edf7de31SOliver Neukum usb_kill_urb(mixer->urb); 2197edf7de31SOliver Neukum usb_kill_urb(mixer->rc_urb); 2198edf7de31SOliver Neukum } 2199edf7de31SOliver Neukum 2200edf7de31SOliver Neukum int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) 2201edf7de31SOliver Neukum { 2202edf7de31SOliver Neukum int err; 2203edf7de31SOliver Neukum 2204edf7de31SOliver Neukum if (mixer->urb) { 2205edf7de31SOliver Neukum err = usb_submit_urb(mixer->urb, GFP_NOIO); 2206edf7de31SOliver Neukum if (err < 0) 2207edf7de31SOliver Neukum return err; 2208edf7de31SOliver Neukum } 2209edf7de31SOliver Neukum 2210edf7de31SOliver Neukum return 0; 2211edf7de31SOliver Neukum } 2212edf7de31SOliver Neukum 2213f0b5e634SDaniel Mack /* create the handler for the optional status interrupt endpoint */ 2214f0b5e634SDaniel Mack static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) 2215f0b5e634SDaniel Mack { 2216f0b5e634SDaniel Mack struct usb_endpoint_descriptor *ep; 2217f0b5e634SDaniel Mack void *transfer_buffer; 2218f0b5e634SDaniel Mack int buffer_length; 2219f0b5e634SDaniel Mack unsigned int epnum; 2220f0b5e634SDaniel Mack 2221f0b5e634SDaniel Mack /* we need one interrupt input endpoint */ 22221faa5d07SDaniel Mack if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) 2223f0b5e634SDaniel Mack return 0; 22241faa5d07SDaniel Mack ep = get_endpoint(mixer->hostif, 0); 2225f0b5e634SDaniel Mack if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) 2226f0b5e634SDaniel Mack return 0; 2227f0b5e634SDaniel Mack 2228f0b5e634SDaniel Mack epnum = usb_endpoint_num(ep); 2229f0b5e634SDaniel Mack buffer_length = le16_to_cpu(ep->wMaxPacketSize); 2230f0b5e634SDaniel Mack transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); 2231f0b5e634SDaniel Mack if (!transfer_buffer) 2232f0b5e634SDaniel Mack return -ENOMEM; 2233f0b5e634SDaniel Mack mixer->urb = usb_alloc_urb(0, GFP_KERNEL); 2234f0b5e634SDaniel Mack if (!mixer->urb) { 2235f0b5e634SDaniel Mack kfree(transfer_buffer); 2236f0b5e634SDaniel Mack return -ENOMEM; 2237f0b5e634SDaniel Mack } 2238f0b5e634SDaniel Mack usb_fill_int_urb(mixer->urb, mixer->chip->dev, 2239f0b5e634SDaniel Mack usb_rcvintpipe(mixer->chip->dev, epnum), 2240f0b5e634SDaniel Mack transfer_buffer, buffer_length, 2241e213e9cfSDaniel Mack snd_usb_mixer_interrupt, mixer, ep->bInterval); 2242f0b5e634SDaniel Mack usb_submit_urb(mixer->urb, GFP_KERNEL); 2243f0b5e634SDaniel Mack return 0; 2244f0b5e634SDaniel Mack } 2245f0b5e634SDaniel Mack 2246f0b5e634SDaniel Mack int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, 2247f0b5e634SDaniel Mack int ignore_error) 2248f0b5e634SDaniel Mack { 2249f0b5e634SDaniel Mack static struct snd_device_ops dev_ops = { 2250f0b5e634SDaniel Mack .dev_free = snd_usb_mixer_dev_free 2251f0b5e634SDaniel Mack }; 2252f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2253f0b5e634SDaniel Mack struct snd_info_entry *entry; 225423caaf19SDaniel Mack int err; 2255f0b5e634SDaniel Mack 2256f0b5e634SDaniel Mack strcpy(chip->card->mixername, "USB Mixer"); 2257f0b5e634SDaniel Mack 2258f0b5e634SDaniel Mack mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); 2259f0b5e634SDaniel Mack if (!mixer) 2260f0b5e634SDaniel Mack return -ENOMEM; 2261f0b5e634SDaniel Mack mixer->chip = chip; 2262f0b5e634SDaniel Mack mixer->ignore_ctl_error = ignore_error; 2263f0b5e634SDaniel Mack mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), 2264f0b5e634SDaniel Mack GFP_KERNEL); 2265f0b5e634SDaniel Mack if (!mixer->id_elems) { 2266f0b5e634SDaniel Mack kfree(mixer); 2267f0b5e634SDaniel Mack return -ENOMEM; 2268f0b5e634SDaniel Mack } 2269f0b5e634SDaniel Mack 22701faa5d07SDaniel Mack mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; 22711faa5d07SDaniel Mack switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { 2272a2acad82SClemens Ladisch case UAC_VERSION_1: 2273a2acad82SClemens Ladisch default: 2274a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_1; 2275a2acad82SClemens Ladisch break; 2276a2acad82SClemens Ladisch case UAC_VERSION_2: 2277a2acad82SClemens Ladisch mixer->protocol = UAC_VERSION_2; 2278a2acad82SClemens Ladisch break; 2279a2acad82SClemens Ladisch } 2280f0b5e634SDaniel Mack 2281f0b5e634SDaniel Mack if ((err = snd_usb_mixer_controls(mixer)) < 0 || 2282f0b5e634SDaniel Mack (err = snd_usb_mixer_status_create(mixer)) < 0) 2283f0b5e634SDaniel Mack goto _error; 2284f0b5e634SDaniel Mack 2285f0b5e634SDaniel Mack snd_usb_mixer_apply_create_quirk(mixer); 2286f0b5e634SDaniel Mack 2287f0b5e634SDaniel Mack err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops); 2288f0b5e634SDaniel Mack if (err < 0) 2289f0b5e634SDaniel Mack goto _error; 2290f0b5e634SDaniel Mack 2291f0b5e634SDaniel Mack if (list_empty(&chip->mixer_list) && 2292f0b5e634SDaniel Mack !snd_card_proc_new(chip->card, "usbmixer", &entry)) 2293f0b5e634SDaniel Mack snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); 2294f0b5e634SDaniel Mack 2295f0b5e634SDaniel Mack list_add(&mixer->list, &chip->mixer_list); 2296f0b5e634SDaniel Mack return 0; 2297f0b5e634SDaniel Mack 2298f0b5e634SDaniel Mack _error: 2299f0b5e634SDaniel Mack snd_usb_mixer_free(mixer); 2300f0b5e634SDaniel Mack return err; 2301f0b5e634SDaniel Mack } 2302f0b5e634SDaniel Mack 2303f0b5e634SDaniel Mack void snd_usb_mixer_disconnect(struct list_head *p) 2304f0b5e634SDaniel Mack { 2305f0b5e634SDaniel Mack struct usb_mixer_interface *mixer; 2306f0b5e634SDaniel Mack 2307f0b5e634SDaniel Mack mixer = list_entry(p, struct usb_mixer_interface, list); 2308f0b5e634SDaniel Mack usb_kill_urb(mixer->urb); 2309f0b5e634SDaniel Mack usb_kill_urb(mixer->rc_urb); 2310f0b5e634SDaniel Mack } 2311