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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Tascam US-16x08 ALSA driver
- *
- * Copyright (c) 2016 by Detlef Urban ([email protected])
- */
- #include <linux/slab.h>
- #include <linux/usb.h>
- #include <linux/usb/audio-v2.h>
- #include <sound/core.h>
- #include <sound/control.h>
- #include "usbaudio.h"
- #include "mixer.h"
- #include "helper.h"
- #include "mixer_us16x08.h"
- /* USB control message templates */
- static const char route_msg[] = {
- 0x61,
- 0x02,
- 0x03, /* input from master (0x02) or input from computer bus (0x03) */
- 0x62,
- 0x02,
- 0x01, /* input index (0x01/0x02 eq. left/right) or bus (0x01-0x08) */
- 0x41,
- 0x01,
- 0x61,
- 0x02,
- 0x01,
- 0x62,
- 0x02,
- 0x01, /* output index (0x01-0x08) */
- 0x42,
- 0x01,
- 0x43,
- 0x01,
- 0x00,
- 0x00
- };
- static const char mix_init_msg1[] = {
- 0x71, 0x01, 0x00, 0x00
- };
- static const char mix_init_msg2[] = {
- 0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00
- };
- static const char mix_msg_in[] = {
- /* default message head, equal to all mixers */
- 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
- 0x81, /* 0x06: Controller ID */
- 0x02, /* 0x07: */
- 0x00, /* 0x08: Value of common mixer */
- 0x00,
- 0x00
- };
- static const char mix_msg_out[] = {
- /* default message head, equal to all mixers */
- 0x61, 0x02, 0x02, 0x62, 0x02, 0x01,
- 0x81, /* 0x06: Controller ID */
- 0x02, /* 0x07: */
- 0x00, /* 0x08: Value of common mixer */
- 0x00,
- 0x00
- };
- static const char bypass_msg_out[] = {
- 0x45,
- 0x02,
- 0x01, /* on/off flag */
- 0x00,
- 0x00
- };
- static const char bus_msg_out[] = {
- 0x44,
- 0x02,
- 0x01, /* on/off flag */
- 0x00,
- 0x00
- };
- static const char comp_msg[] = {
- /* default message head, equal to all mixers */
- 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
- 0x91,
- 0x02,
- 0xf0, /* 0x08: Threshold db (8) (e0 ... 00) (+-0dB -- -32dB) x-32 */
- 0x92,
- 0x02,
- 0x0a, /* 0x0b: Ratio (0a,0b,0d,0f,11,14,19,1e,23,28,32,3c,50,a0,ff) */
- 0x93,
- 0x02,
- 0x02, /* 0x0e: Attack (0x02 ... 0xc0) (2ms ... 200ms) */
- 0x94,
- 0x02,
- 0x01, /* 0x11: Release (0x01 ... 0x64) (10ms ... 1000ms) x*10 */
- 0x95,
- 0x02,
- 0x03, /* 0x14: gain (0 ... 20) (0dB .. 20dB) */
- 0x96,
- 0x02,
- 0x01,
- 0x97,
- 0x02,
- 0x01, /* 0x1a: main Comp switch (0 ... 1) (off ... on)) */
- 0x00,
- 0x00
- };
- static const char eqs_msq[] = {
- /* default message head, equal to all mixers */
- 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
- 0x51, /* 0x06: Controller ID */
- 0x02,
- 0x04, /* 0x08: EQ set num (0x01..0x04) (LOW, LOWMID, HIGHMID, HIGH)) */
- 0x52,
- 0x02,
- 0x0c, /* 0x0b: value dB (0 ... 12) (-12db .. +12db) x-6 */
- 0x53,
- 0x02,
- 0x0f, /* 0x0e: value freq (32-47) (1.7kHz..18kHz) */
- 0x54,
- 0x02,
- 0x02, /* 0x11: band width (0-6) (Q16-Q0.25) 2^x/4 (EQ xxMID only) */
- 0x55,
- 0x02,
- 0x01, /* 0x14: main EQ switch (0 ... 1) (off ... on)) */
- 0x00,
- 0x00
- };
- /* compressor ratio map */
- static const char ratio_map[] = {
- 0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e,
- 0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff
- };
- /* route enumeration names */
- static const char *const route_names[] = {
- "Master Left", "Master Right", "Output 1", "Output 2", "Output 3",
- "Output 4", "Output 5", "Output 6", "Output 7", "Output 8",
- };
- static int snd_us16x08_recv_urb(struct snd_usb_audio *chip,
- unsigned char *buf, int size)
- {
- mutex_lock(&chip->mutex);
- snd_usb_ctl_msg(chip->dev,
- usb_rcvctrlpipe(chip->dev, 0),
- SND_US16X08_URB_METER_REQUEST,
- SND_US16X08_URB_METER_REQUESTTYPE, 0, 0, buf, size);
- mutex_unlock(&chip->mutex);
- return 0;
- }
- /* wrapper function to send prepared URB buffer to usb device. Return an error
- * code if something went wrong
- */
- static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size)
- {
- return snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
- SND_US16X08_URB_REQUEST, SND_US16X08_URB_REQUESTTYPE,
- 0, 0, buf, size);
- }
- static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
- {
- return snd_ctl_enum_info(uinfo, 1, 10, route_names);
- }
- static int snd_us16x08_route_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- int index = ucontrol->id.index;
- /* route has no bias */
- ucontrol->value.enumerated.item[0] = elem->cache_val[index];
- return 0;
- }
- static int snd_us16x08_route_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- int index = ucontrol->id.index;
- char buf[sizeof(route_msg)];
- int val, val_org, err;
- /* get the new value (no bias for routes) */
- val = ucontrol->value.enumerated.item[0];
- /* sanity check */
- if (val < 0 || val > 9)
- return -EINVAL;
- /* prepare the message buffer from template */
- memcpy(buf, route_msg, sizeof(route_msg));
- if (val < 2) {
- /* input comes from a master channel */
- val_org = val;
- buf[2] = 0x02;
- } else {
- /* input comes from a computer channel */
- buf[2] = 0x03;
- val_org = val - 2;
- }
- /* place new route selection in URB message */
- buf[5] = (unsigned char) (val_org & 0x0f) + 1;
- /* place route selector in URB message */
- buf[13] = index + 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(route_msg));
- if (err > 0) {
- elem->cached |= 1 << index;
- elem->cache_val[index] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set routing, err:%d\n", err);
- }
- return err > 0 ? 1 : 0;
- }
- static int snd_us16x08_master_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
- {
- uinfo->count = 1;
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
- uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
- uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
- return 0;
- }
- static int snd_us16x08_master_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- int index = ucontrol->id.index;
- ucontrol->value.integer.value[0] = elem->cache_val[index];
- return 0;
- }
- static int snd_us16x08_master_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- char buf[sizeof(mix_msg_out)];
- int val, err;
- int index = ucontrol->id.index;
- /* new control value incl. bias*/
- val = ucontrol->value.integer.value[0];
- /* sanity check */
- if (val < SND_US16X08_KCMIN(kcontrol)
- || val > SND_US16X08_KCMAX(kcontrol))
- return -EINVAL;
- /* prepare the message buffer from template */
- memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
- buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
- buf[6] = elem->head.id;
- /* place channel selector in URB message */
- buf[5] = index + 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
- if (err > 0) {
- elem->cached |= 1 << index;
- elem->cache_val[index] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set master, err:%d\n", err);
- }
- return err > 0 ? 1 : 0;
- }
- static int snd_us16x08_bus_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- char buf[sizeof(mix_msg_out)];
- int val, err = 0;
- val = ucontrol->value.integer.value[0];
- /* prepare the message buffer from template */
- switch (elem->head.id) {
- case SND_US16X08_ID_BYPASS:
- memcpy(buf, bypass_msg_out, sizeof(bypass_msg_out));
- buf[2] = val;
- err = snd_us16x08_send_urb(chip, buf, sizeof(bypass_msg_out));
- break;
- case SND_US16X08_ID_BUSS_OUT:
- memcpy(buf, bus_msg_out, sizeof(bus_msg_out));
- buf[2] = val;
- err = snd_us16x08_send_urb(chip, buf, sizeof(bus_msg_out));
- break;
- case SND_US16X08_ID_MUTE:
- memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
- buf[8] = val;
- buf[6] = elem->head.id;
- buf[5] = 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
- break;
- }
- if (err > 0) {
- elem->cached |= 1;
- elem->cache_val[0] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set bus parameter, err:%d\n", err);
- }
- return err > 0 ? 1 : 0;
- }
- static int snd_us16x08_bus_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- switch (elem->head.id) {
- case SND_US16X08_ID_BUSS_OUT:
- ucontrol->value.integer.value[0] = elem->cache_val[0];
- break;
- case SND_US16X08_ID_BYPASS:
- ucontrol->value.integer.value[0] = elem->cache_val[0];
- break;
- case SND_US16X08_ID_MUTE:
- ucontrol->value.integer.value[0] = elem->cache_val[0];
- break;
- }
- return 0;
- }
- /* gets a current mixer value from common store */
- static int snd_us16x08_channel_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- int index = ucontrol->id.index;
- ucontrol->value.integer.value[0] = elem->cache_val[index];
- return 0;
- }
- static int snd_us16x08_channel_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- char buf[sizeof(mix_msg_in)];
- int val, err;
- int index = ucontrol->id.index;
- val = ucontrol->value.integer.value[0];
- /* sanity check */
- if (val < SND_US16X08_KCMIN(kcontrol)
- || val > SND_US16X08_KCMAX(kcontrol))
- return -EINVAL;
- /* prepare URB message from template */
- memcpy(buf, mix_msg_in, sizeof(mix_msg_in));
- /* add the bias to the new value */
- buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
- buf[6] = elem->head.id;
- buf[5] = index + 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_in));
- if (err > 0) {
- elem->cached |= 1 << index;
- elem->cache_val[index] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set channel, err:%d\n", err);
- }
- return err > 0 ? 1 : 0;
- }
- static int snd_us16x08_mix_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
- {
- uinfo->count = 1;
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
- uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
- uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
- return 0;
- }
- static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_us16x08_comp_store *store = elem->private_data;
- int index = ucontrol->id.index;
- int val_idx = COMP_STORE_IDX(elem->head.id);
- ucontrol->value.integer.value[0] = store->val[val_idx][index];
- return 0;
- }
- static int snd_us16x08_comp_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- struct snd_us16x08_comp_store *store = elem->private_data;
- int index = ucontrol->id.index;
- char buf[sizeof(comp_msg)];
- int val_idx, val;
- int err;
- val = ucontrol->value.integer.value[0];
- /* sanity check */
- if (val < SND_US16X08_KCMIN(kcontrol)
- || val > SND_US16X08_KCMAX(kcontrol))
- return -EINVAL;
- /* new control value incl. bias*/
- val_idx = elem->head.id - SND_US16X08_ID_COMP_BASE;
- store->val[val_idx][index] = ucontrol->value.integer.value[0];
- /* prepare compressor URB message from template */
- memcpy(buf, comp_msg, sizeof(comp_msg));
- /* place comp values in message buffer watch bias! */
- buf[8] = store->val[
- COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][index]
- - SND_US16X08_COMP_THRESHOLD_BIAS;
- buf[11] = ratio_map[store->val[
- COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][index]];
- buf[14] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][index]
- + SND_US16X08_COMP_ATTACK_BIAS;
- buf[17] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][index]
- + SND_US16X08_COMP_RELEASE_BIAS;
- buf[20] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][index];
- buf[26] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][index];
- /* place channel selector in message buffer */
- buf[5] = index + 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(comp_msg));
- if (err > 0) {
- elem->cached |= 1 << index;
- elem->cache_val[index] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set compressor, err:%d\n", err);
- }
- return 1;
- }
- static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- int val;
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_us16x08_eq_store *store = elem->private_data;
- int index = ucontrol->id.index;
- /* get low switch from cache is enough, cause all bands are together */
- val = store->val[EQ_STORE_BAND_IDX(elem->head.id)]
- [EQ_STORE_PARAM_IDX(elem->head.id)][index];
- ucontrol->value.integer.value[0] = val;
- return 0;
- }
- static int snd_us16x08_eqswitch_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- struct snd_us16x08_eq_store *store = elem->private_data;
- int index = ucontrol->id.index;
- char buf[sizeof(eqs_msq)];
- int val, err = 0;
- int b_idx;
- /* new control value incl. bias*/
- val = ucontrol->value.integer.value[0] + SND_US16X08_KCBIAS(kcontrol);
- /* prepare URB message from EQ template */
- memcpy(buf, eqs_msq, sizeof(eqs_msq));
- /* place channel index in URB message */
- buf[5] = index + 1;
- for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
- /* all four EQ bands have to be enabled/disabled in once */
- buf[20] = val;
- buf[17] = store->val[b_idx][2][index];
- buf[14] = store->val[b_idx][1][index];
- buf[11] = store->val[b_idx][0][index];
- buf[8] = b_idx + 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
- if (err < 0)
- break;
- store->val[b_idx][3][index] = val;
- msleep(15);
- }
- if (err > 0) {
- elem->cached |= 1 << index;
- elem->cache_val[index] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set eq switch, err:%d\n", err);
- }
- return 1;
- }
- static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- int val;
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_us16x08_eq_store *store = elem->private_data;
- int index = ucontrol->id.index;
- int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
- int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
- val = store->val[b_idx][p_idx][index];
- ucontrol->value.integer.value[0] = val;
- return 0;
- }
- static int snd_us16x08_eq_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- struct snd_us16x08_eq_store *store = elem->private_data;
- int index = ucontrol->id.index;
- char buf[sizeof(eqs_msq)];
- int val, err;
- int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
- int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
- val = ucontrol->value.integer.value[0];
- /* sanity check */
- if (val < SND_US16X08_KCMIN(kcontrol)
- || val > SND_US16X08_KCMAX(kcontrol))
- return -EINVAL;
- /* copy URB buffer from EQ template */
- memcpy(buf, eqs_msq, sizeof(eqs_msq));
- store->val[b_idx][p_idx][index] = val;
- buf[20] = store->val[b_idx][3][index];
- buf[17] = store->val[b_idx][2][index];
- buf[14] = store->val[b_idx][1][index];
- buf[11] = store->val[b_idx][0][index];
- /* place channel index in URB buffer */
- buf[5] = index + 1;
- /* place EQ band in URB buffer */
- buf[8] = b_idx + 1;
- err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
- if (err > 0) {
- /* store new value in EQ band cache */
- elem->cached |= 1 << index;
- elem->cache_val[index] = val;
- } else {
- usb_audio_dbg(chip, "Failed to set eq param, err:%d\n", err);
- }
- return 1;
- }
- static int snd_us16x08_meter_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
- {
- uinfo->count = 34;
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->value.integer.max = 0x7FFF;
- uinfo->value.integer.min = 0;
- return 0;
- }
- /* calculate compressor index for reduction level request */
- static int snd_get_meter_comp_index(struct snd_us16x08_meter_store *store)
- {
- int ret;
- /* any channel active */
- if (store->comp_active_index) {
- /* check for stereo link */
- if (store->comp_active_index & 0x20) {
- /* reset comp_index to left channel*/
- if (store->comp_index -
- store->comp_active_index > 1)
- store->comp_index =
- store->comp_active_index;
- ret = store->comp_index++ & 0x1F;
- } else {
- /* no stereo link */
- ret = store->comp_active_index;
- }
- } else {
- /* skip channels with no compressor active */
- while (store->comp_index <= SND_US16X08_MAX_CHANNELS
- && !store->comp_store->val[
- COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)]
- [store->comp_index - 1]) {
- store->comp_index++;
- }
- ret = store->comp_index++;
- if (store->comp_index > SND_US16X08_MAX_CHANNELS)
- store->comp_index = 1;
- }
- return ret;
- }
- /* retrieve the meter level values from URB message */
- static void get_meter_levels_from_urb(int s,
- struct snd_us16x08_meter_store *store,
- u8 *meter_urb)
- {
- int val = MUC2(meter_urb, s) + (MUC3(meter_urb, s) << 8);
- if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
- MUA2(meter_urb, s) == 0x04 && MUB0(meter_urb, s) == 0x62) {
- if (MUC0(meter_urb, s) == 0x72)
- store->meter_level[MUB2(meter_urb, s) - 1] = val;
- if (MUC0(meter_urb, s) == 0xb2)
- store->comp_level[MUB2(meter_urb, s) - 1] = val;
- }
- if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
- MUA2(meter_urb, s) == 0x02 && MUB0(meter_urb, s) == 0x62)
- store->master_level[MUB2(meter_urb, s) - 1] = val;
- }
- /* Function to retrieve current meter values from the device.
- *
- * The device needs to be polled for meter values with an initial
- * requests. It will return with a sequence of different meter value
- * packages. The first request (case 0:) initiate this meter response sequence.
- * After the third response, an additional request can be placed,
- * to retrieve compressor reduction level value for given channel. This round
- * trip channel selector will skip all inactive compressors.
- * A mixer can interrupt this round-trip by selecting one ore two (stereo-link)
- * specific channels.
- */
- static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- int i, set;
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_usb_audio *chip = elem->head.mixer->chip;
- struct snd_us16x08_meter_store *store = elem->private_data;
- u8 meter_urb[64];
- switch (kcontrol->private_value) {
- case 0: {
- char tmp[sizeof(mix_init_msg1)];
- memcpy(tmp, mix_init_msg1, sizeof(mix_init_msg1));
- snd_us16x08_send_urb(chip, tmp, 4);
- snd_us16x08_recv_urb(chip, meter_urb,
- sizeof(meter_urb));
- kcontrol->private_value++;
- break;
- }
- case 1:
- snd_us16x08_recv_urb(chip, meter_urb,
- sizeof(meter_urb));
- kcontrol->private_value++;
- break;
- case 2:
- snd_us16x08_recv_urb(chip, meter_urb,
- sizeof(meter_urb));
- kcontrol->private_value++;
- break;
- case 3: {
- char tmp[sizeof(mix_init_msg2)];
- memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2));
- tmp[2] = snd_get_meter_comp_index(store);
- snd_us16x08_send_urb(chip, tmp, 10);
- snd_us16x08_recv_urb(chip, meter_urb,
- sizeof(meter_urb));
- kcontrol->private_value = 0;
- break;
- }
- }
- for (set = 0; set < 6; set++)
- get_meter_levels_from_urb(set, store, meter_urb);
- for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
- ucontrol->value.integer.value[i] =
- store ? store->meter_level[i] : 0;
- }
- ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0;
- ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0;
- for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++)
- ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] =
- store ? store->comp_level[i - 2] : 0;
- return 1;
- }
- static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct usb_mixer_elem_info *elem = kcontrol->private_data;
- struct snd_us16x08_meter_store *store = elem->private_data;
- int val;
- val = ucontrol->value.integer.value[0];
- /* sanity check */
- if (val < 0 || val >= SND_US16X08_MAX_CHANNELS)
- return -EINVAL;
- store->comp_active_index = val;
- store->comp_index = val;
- return 1;
- }
- static const struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_switch_info,
- .get = snd_us16x08_channel_get,
- .put = snd_us16x08_channel_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
- };
- static const struct snd_kcontrol_new snd_us16x08_ch_int_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_channel_get,
- .put = snd_us16x08_channel_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
- };
- static const struct snd_kcontrol_new snd_us16x08_pan_int_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_channel_get,
- .put = snd_us16x08_channel_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 255)
- };
- static const struct snd_kcontrol_new snd_us16x08_master_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 1,
- .info = snd_us16x08_master_info,
- .get = snd_us16x08_master_get,
- .put = snd_us16x08_master_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
- };
- static const struct snd_kcontrol_new snd_us16x08_route_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 8,
- .info = snd_us16x08_route_info,
- .get = snd_us16x08_route_get,
- .put = snd_us16x08_route_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9)
- };
- static const struct snd_kcontrol_new snd_us16x08_bus_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 1,
- .info = snd_us16x08_switch_info,
- .get = snd_us16x08_bus_get,
- .put = snd_us16x08_bus_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
- };
- static const struct snd_kcontrol_new snd_us16x08_compswitch_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_switch_info,
- .get = snd_us16x08_comp_get,
- .put = snd_us16x08_comp_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
- };
- static const struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_comp_get,
- .put = snd_us16x08_comp_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1,
- 0, 0x20)
- };
- static const struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_comp_get,
- .put = snd_us16x08_comp_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0,
- sizeof(ratio_map) - 1), /*max*/
- };
- static const struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_comp_get,
- .put = snd_us16x08_comp_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14)
- };
- static const struct snd_kcontrol_new snd_us16x08_comp_attack_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_comp_get,
- .put = snd_us16x08_comp_put,
- .private_value =
- SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6),
- };
- static const struct snd_kcontrol_new snd_us16x08_comp_release_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_comp_get,
- .put = snd_us16x08_comp_put,
- .private_value =
- SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63),
- };
- static const struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_eq_get,
- .put = snd_us16x08_eq_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24),
- };
- static const struct snd_kcontrol_new snd_us16x08_eq_low_freq_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_eq_get,
- .put = snd_us16x08_eq_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x1F),
- };
- static const struct snd_kcontrol_new snd_us16x08_eq_mid_freq_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_eq_get,
- .put = snd_us16x08_eq_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x3F)
- };
- static const struct snd_kcontrol_new snd_us16x08_eq_mid_width_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_eq_get,
- .put = snd_us16x08_eq_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x06)
- };
- static const struct snd_kcontrol_new snd_us16x08_eq_high_freq_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_mix_info,
- .get = snd_us16x08_eq_get,
- .put = snd_us16x08_eq_put,
- .private_value =
- SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F)
- };
- static const struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 16,
- .info = snd_us16x08_switch_info,
- .get = snd_us16x08_eqswitch_get,
- .put = snd_us16x08_eqswitch_put,
- .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
- };
- static const struct snd_kcontrol_new snd_us16x08_meter_ctl = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
- .count = 1,
- .info = snd_us16x08_meter_info,
- .get = snd_us16x08_meter_get,
- .put = snd_us16x08_meter_put
- };
- /* control store preparation */
- /* setup compressor store and assign default value */
- static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void)
- {
- int i;
- struct snd_us16x08_comp_store *tmp;
- tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
- if (!tmp)
- return NULL;
- for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
- tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i]
- = 0x20;
- tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00;
- tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00;
- tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00;
- tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00;
- tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00;
- }
- return tmp;
- }
- /* setup EQ store and assign default values */
- static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void)
- {
- int i, b_idx;
- struct snd_us16x08_eq_store *tmp;
- tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
- if (!tmp)
- return NULL;
- for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
- for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
- tmp->val[b_idx][0][i] = 0x0c;
- tmp->val[b_idx][3][i] = 0x00;
- switch (b_idx) {
- case 0: /* EQ Low */
- tmp->val[b_idx][1][i] = 0x05;
- tmp->val[b_idx][2][i] = 0xff;
- break;
- case 1: /* EQ Mid low */
- tmp->val[b_idx][1][i] = 0x0e;
- tmp->val[b_idx][2][i] = 0x02;
- break;
- case 2: /* EQ Mid High */
- tmp->val[b_idx][1][i] = 0x1b;
- tmp->val[b_idx][2][i] = 0x02;
- break;
- case 3: /* EQ High */
- tmp->val[b_idx][1][i] = 0x2f
- - SND_US16X08_EQ_HIGHFREQ_BIAS;
- tmp->val[b_idx][2][i] = 0xff;
- break;
- }
- }
- }
- return tmp;
- }
- static struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void)
- {
- struct snd_us16x08_meter_store *tmp;
- tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
- if (!tmp)
- return NULL;
- tmp->comp_index = 1;
- tmp->comp_active_index = 0;
- return tmp;
- }
- /* release elem->private_free as well; called only once for each *_store */
- static void elem_private_free(struct snd_kcontrol *kctl)
- {
- struct usb_mixer_elem_info *elem = kctl->private_data;
- if (elem)
- kfree(elem->private_data);
- kfree(elem);
- kctl->private_data = NULL;
- }
- static int add_new_ctl(struct usb_mixer_interface *mixer,
- const struct snd_kcontrol_new *ncontrol,
- int index, int val_type, int channels,
- const char *name, void *opt,
- bool do_private_free,
- struct usb_mixer_elem_info **elem_ret)
- {
- struct snd_kcontrol *kctl;
- struct usb_mixer_elem_info *elem;
- int err;
- usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name);
- elem = kzalloc(sizeof(*elem), GFP_KERNEL);
- if (!elem)
- return -ENOMEM;
- elem->head.mixer = mixer;
- elem->head.resume = NULL;
- elem->control = 0;
- elem->idx_off = 0;
- elem->head.id = index;
- elem->val_type = val_type;
- elem->channels = channels;
- elem->private_data = opt;
- kctl = snd_ctl_new1(ncontrol, elem);
- if (!kctl) {
- kfree(elem);
- return -ENOMEM;
- }
- if (do_private_free)
- kctl->private_free = elem_private_free;
- else
- kctl->private_free = snd_usb_mixer_elem_free;
- strscpy(kctl->id.name, name, sizeof(kctl->id.name));
- err = snd_usb_mixer_add_control(&elem->head, kctl);
- if (err < 0)
- return err;
- if (elem_ret)
- *elem_ret = elem;
- return 0;
- }
- /* table of EQ controls */
- static const struct snd_us16x08_control_params eq_controls[] = {
- { /* EQ switch */
- .kcontrol_new = &snd_us16x08_eq_switch_ctl,
- .control_id = SND_US16X08_ID_EQENABLE,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "EQ Switch",
- },
- { /* EQ low gain */
- .kcontrol_new = &snd_us16x08_eq_gain_ctl,
- .control_id = SND_US16X08_ID_EQLOWLEVEL,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ Low Volume",
- },
- { /* EQ low freq */
- .kcontrol_new = &snd_us16x08_eq_low_freq_ctl,
- .control_id = SND_US16X08_ID_EQLOWFREQ,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ Low Frequency",
- },
- { /* EQ mid low gain */
- .kcontrol_new = &snd_us16x08_eq_gain_ctl,
- .control_id = SND_US16X08_ID_EQLOWMIDLEVEL,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ MidLow Volume",
- },
- { /* EQ mid low freq */
- .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
- .control_id = SND_US16X08_ID_EQLOWMIDFREQ,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ MidLow Frequency",
- },
- { /* EQ mid low Q */
- .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
- .control_id = SND_US16X08_ID_EQLOWMIDWIDTH,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ MidLow Q",
- },
- { /* EQ mid high gain */
- .kcontrol_new = &snd_us16x08_eq_gain_ctl,
- .control_id = SND_US16X08_ID_EQHIGHMIDLEVEL,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ MidHigh Volume",
- },
- { /* EQ mid high freq */
- .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
- .control_id = SND_US16X08_ID_EQHIGHMIDFREQ,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ MidHigh Frequency",
- },
- { /* EQ mid high Q */
- .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
- .control_id = SND_US16X08_ID_EQHIGHMIDWIDTH,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ MidHigh Q",
- },
- { /* EQ high gain */
- .kcontrol_new = &snd_us16x08_eq_gain_ctl,
- .control_id = SND_US16X08_ID_EQHIGHLEVEL,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ High Volume",
- },
- { /* EQ low freq */
- .kcontrol_new = &snd_us16x08_eq_high_freq_ctl,
- .control_id = SND_US16X08_ID_EQHIGHFREQ,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "EQ High Frequency",
- },
- };
- /* table of compressor controls */
- static const struct snd_us16x08_control_params comp_controls[] = {
- { /* Comp enable */
- .kcontrol_new = &snd_us16x08_compswitch_ctl,
- .control_id = SND_US16X08_ID_COMP_SWITCH,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "Compressor Switch",
- },
- { /* Comp threshold */
- .kcontrol_new = &snd_us16x08_comp_threshold_ctl,
- .control_id = SND_US16X08_ID_COMP_THRESHOLD,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Compressor Threshold Volume",
- },
- { /* Comp ratio */
- .kcontrol_new = &snd_us16x08_comp_ratio_ctl,
- .control_id = SND_US16X08_ID_COMP_RATIO,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Compressor Ratio",
- },
- { /* Comp attack */
- .kcontrol_new = &snd_us16x08_comp_attack_ctl,
- .control_id = SND_US16X08_ID_COMP_ATTACK,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Compressor Attack",
- },
- { /* Comp release */
- .kcontrol_new = &snd_us16x08_comp_release_ctl,
- .control_id = SND_US16X08_ID_COMP_RELEASE,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Compressor Release",
- },
- { /* Comp gain */
- .kcontrol_new = &snd_us16x08_comp_gain_ctl,
- .control_id = SND_US16X08_ID_COMP_GAIN,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Compressor Volume",
- },
- };
- /* table of channel controls */
- static const struct snd_us16x08_control_params channel_controls[] = {
- { /* Phase */
- .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
- .control_id = SND_US16X08_ID_PHASE,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "Phase Switch",
- .default_val = 0
- },
- { /* Fader */
- .kcontrol_new = &snd_us16x08_ch_int_ctl,
- .control_id = SND_US16X08_ID_FADER,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Line Volume",
- .default_val = 127
- },
- { /* Mute */
- .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
- .control_id = SND_US16X08_ID_MUTE,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "Mute Switch",
- .default_val = 0
- },
- { /* Pan */
- .kcontrol_new = &snd_us16x08_pan_int_ctl,
- .control_id = SND_US16X08_ID_PAN,
- .type = USB_MIXER_U16,
- .num_channels = 16,
- .name = "Pan Left-Right Volume",
- .default_val = 127
- },
- };
- /* table of master controls */
- static const struct snd_us16x08_control_params master_controls[] = {
- { /* Master */
- .kcontrol_new = &snd_us16x08_master_ctl,
- .control_id = SND_US16X08_ID_FADER,
- .type = USB_MIXER_U8,
- .num_channels = 16,
- .name = "Master Volume",
- .default_val = 127
- },
- { /* Bypass */
- .kcontrol_new = &snd_us16x08_bus_ctl,
- .control_id = SND_US16X08_ID_BYPASS,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "DSP Bypass Switch",
- .default_val = 0
- },
- { /* Buss out */
- .kcontrol_new = &snd_us16x08_bus_ctl,
- .control_id = SND_US16X08_ID_BUSS_OUT,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "Buss Out Switch",
- .default_val = 0
- },
- { /* Master mute */
- .kcontrol_new = &snd_us16x08_bus_ctl,
- .control_id = SND_US16X08_ID_MUTE,
- .type = USB_MIXER_BOOLEAN,
- .num_channels = 16,
- .name = "Master Mute Switch",
- .default_val = 0
- },
- };
- int snd_us16x08_controls_create(struct usb_mixer_interface *mixer)
- {
- int i, j;
- int err;
- struct usb_mixer_elem_info *elem;
- struct snd_us16x08_comp_store *comp_store;
- struct snd_us16x08_meter_store *meter_store;
- struct snd_us16x08_eq_store *eq_store;
- /* just check for non-MIDI interface */
- if (mixer->hostif->desc.bInterfaceNumber == 3) {
- /* add routing control */
- err = add_new_ctl(mixer, &snd_us16x08_route_ctl,
- SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Line Out Route",
- NULL, false, &elem);
- if (err < 0) {
- usb_audio_dbg(mixer->chip,
- "Failed to create route control, err:%d\n",
- err);
- return err;
- }
- for (i = 0; i < 8; i++)
- elem->cache_val[i] = i < 2 ? i : i + 2;
- elem->cached = 0xff;
- /* create compressor mixer elements */
- comp_store = snd_us16x08_create_comp_store();
- if (!comp_store)
- return -ENOMEM;
- /* add master controls */
- for (i = 0; i < ARRAY_SIZE(master_controls); i++) {
- err = add_new_ctl(mixer,
- master_controls[i].kcontrol_new,
- master_controls[i].control_id,
- master_controls[i].type,
- master_controls[i].num_channels,
- master_controls[i].name,
- comp_store,
- i == 0, /* release comp_store only once */
- &elem);
- if (err < 0)
- return err;
- elem->cache_val[0] = master_controls[i].default_val;
- elem->cached = 1;
- }
- /* add channel controls */
- for (i = 0; i < ARRAY_SIZE(channel_controls); i++) {
- err = add_new_ctl(mixer,
- channel_controls[i].kcontrol_new,
- channel_controls[i].control_id,
- channel_controls[i].type,
- channel_controls[i].num_channels,
- channel_controls[i].name,
- comp_store,
- false, &elem);
- if (err < 0)
- return err;
- for (j = 0; j < SND_US16X08_MAX_CHANNELS; j++) {
- elem->cache_val[j] =
- channel_controls[i].default_val;
- }
- elem->cached = 0xffff;
- }
- /* create eq store */
- eq_store = snd_us16x08_create_eq_store();
- if (!eq_store)
- return -ENOMEM;
- /* add EQ controls */
- for (i = 0; i < ARRAY_SIZE(eq_controls); i++) {
- err = add_new_ctl(mixer,
- eq_controls[i].kcontrol_new,
- eq_controls[i].control_id,
- eq_controls[i].type,
- eq_controls[i].num_channels,
- eq_controls[i].name,
- eq_store,
- i == 0, /* release eq_store only once */
- NULL);
- if (err < 0)
- return err;
- }
- /* add compressor controls */
- for (i = 0; i < ARRAY_SIZE(comp_controls); i++) {
- err = add_new_ctl(mixer,
- comp_controls[i].kcontrol_new,
- comp_controls[i].control_id,
- comp_controls[i].type,
- comp_controls[i].num_channels,
- comp_controls[i].name,
- comp_store,
- false, NULL);
- if (err < 0)
- return err;
- }
- /* create meters store */
- meter_store = snd_us16x08_create_meter_store();
- if (!meter_store)
- return -ENOMEM;
- /* meter function 'get' must access to compressor store
- * so place a reference here
- */
- meter_store->comp_store = comp_store;
- err = add_new_ctl(mixer, &snd_us16x08_meter_ctl,
- SND_US16X08_ID_METER, USB_MIXER_U16, 0, "Level Meter",
- meter_store, true, NULL);
- if (err < 0)
- return err;
- }
- return 0;
- }
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