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mixer_us16x08.c
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mixer_us16x08.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Tascam US-16x08 ALSA driver
*
* Copyright (c) 2016 by Detlef Urban (onkel@paraair.de)
*/
#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_store->val[
COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)]
[store->comp_index - 1]
&& store->comp_index <= SND_US16X08_MAX_CHANNELS) {
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 */