ALSA: scarlett2: Add DSP controls

Add filter and compressor DSP controls for the Vocaster interfaces.
Mark scarlett2_notify_input_dsp() as __always_unused until it gets
used when the Vocaster callback function array is added.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Message-ID: <a45316f79600b862dae38da24f13def638b06476.1710264833.git.g@b4.vu>
This commit is contained in:
Geoffrey D. Bennett 2024-03-13 05:07:12 +10:30 committed by Takashi Iwai
parent bff5421a2c
commit b64678eb4e

View file

@ -87,6 +87,7 @@
* - disable/enable standalone mode
* - input mute, gain, autogain, safe mode
* - direct monitor mixes
* - compressor and EQ
*
* <ditaa>
* /--------------\ 18chn 20chn /--------------\
@ -214,6 +215,7 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
#define SCARLETT2_LEVEL_SWITCH_MAX 2
#define SCARLETT2_PAD_SWITCH_MAX 8
#define SCARLETT2_AIR_SWITCH_MAX 8
#define SCARLETT2_DSP_SWITCH_MAX 2
#define SCARLETT2_INPUT_MUTE_SWITCH_MAX 2
#define SCARLETT2_PHANTOM_SWITCH_MAX 2
#define SCARLETT2_INPUT_GAIN_MAX 2
@ -245,6 +247,59 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
/* Maximum number of meters (sum of output port counts) */
#define SCARLETT2_MAX_METERS 65
/* Compressor parameter data
*
* The compressor parameters are 32-bit fixed point values with 24
* bits of fraction. Integer values are sufficient for the parameters
* except for ratio which we can set in 0.5:1 steps.
*/
struct compressor_param {
const char *name;
snd_ctl_elem_type_t type;
s32 min;
s32 max;
int scale_bits;
};
/* The available compressor parameters on the Vocaster:
* - Enable: Off, On
* - Threshold: -40dB to 0dB
* - Ratio: 1:1 to 50:1 in 0.5:1 steps
* - Knee Width: 0dB to 10dB
* - Attack: 30ms to 127ms
* - Release: 30ms to 127ms
* - Makeup Gain: 0dB to 24dB
*/
static const struct compressor_param compressor_params[] = {
{ "Enable", SNDRV_CTL_ELEM_TYPE_BOOLEAN, 0, 1, 0 },
{ "Threshold", SNDRV_CTL_ELEM_TYPE_INTEGER, -40, 0, 24 },
{ "Ratio", SNDRV_CTL_ELEM_TYPE_INTEGER, 2, 100, 23 },
{ "Knee Width", SNDRV_CTL_ELEM_TYPE_INTEGER, 0, 10, 24 },
{ "Attack", SNDRV_CTL_ELEM_TYPE_INTEGER, 30, 127, 24 },
{ "Release", SNDRV_CTL_ELEM_TYPE_INTEGER, 30, 127, 24 },
{ "Makeup Gain", SNDRV_CTL_ELEM_TYPE_INTEGER, 0, 24, 24 },
};
#define SCARLETT2_COMPRESSOR_PARAM_COUNT ARRAY_SIZE(compressor_params)
#define SCARLETT2_COMPRESSOR_CTLS_MAX \
(SCARLETT2_COMPRESSOR_PARAM_COUNT * SCARLETT2_DSP_SWITCH_MAX)
/* Maximum number of filter controls */
#define SCARLETT2_PRECOMP_FLT_CTLS_MAX (2 * SCARLETT2_DSP_SWITCH_MAX)
#define SCARLETT2_PEQ_FLT_CTLS_MAX (3 * SCARLETT2_DSP_SWITCH_MAX)
/* Number of biquad filter coefficients */
#define SCARLETT2_BIQUAD_COEFFS 5
/* Maximum number of filter coefficient values */
#define SCARLETT2_PRECOMP_FLT_VALUES_MAX \
(SCARLETT2_PRECOMP_FLT_CTLS_MAX * SCARLETT2_BIQUAD_COEFFS)
#define SCARLETT2_PEQ_FLT_VALUES_MAX \
(SCARLETT2_PEQ_FLT_CTLS_MAX * SCARLETT2_BIQUAD_COEFFS)
/* Maximum number of PEQ filter slots */
#define SCARLETT2_PEQ_FLT_SLOTS_MAX 4
/* Hardware port types:
* - None (no input to mux)
* - Analogue I/O
@ -330,6 +385,7 @@ static void scarlett2_notify_volume(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_level(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_pad(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_air(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_dsp(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_mute(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_phantom(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_other(struct usb_mixer_interface *mixer);
@ -417,6 +473,12 @@ enum {
SCARLETT2_CONFIG_PAD_SWITCH,
SCARLETT2_CONFIG_MSD_SWITCH,
SCARLETT2_CONFIG_AIR_SWITCH,
SCARLETT2_CONFIG_DSP_SWITCH,
SCARLETT2_CONFIG_COMPRESSOR_PARAMS,
SCARLETT2_CONFIG_PRECOMP_FLT_SWITCH,
SCARLETT2_CONFIG_PRECOMP_FLT_PARAMS,
SCARLETT2_CONFIG_PEQ_FLT_SWITCH,
SCARLETT2_CONFIG_PEQ_FLT_PARAMS,
SCARLETT2_CONFIG_INPUT_MUTE_SWITCH,
SCARLETT2_CONFIG_STANDALONE_SWITCH,
SCARLETT2_CONFIG_PHANTOM_SWITCH,
@ -918,6 +980,18 @@ struct scarlett2_device_info {
*/
u8 air_option;
/* the number of analogue inputs with DSP control */
u8 dsp_input_count;
/* number of pre-compressor filters */
u8 precomp_flt_count;
/* number of parametric EQ filters */
u8 peq_flt_count;
/* number of PEQ filters plus unused slots */
u8 peq_flt_total_count;
/* the number of analogue inputs with a software switchable
* mute control
*/
@ -1004,6 +1078,7 @@ struct scarlett2_data {
u8 input_level_updated;
u8 input_pad_updated;
u8 input_air_updated;
u8 input_dsp_updated;
u8 input_mute_updated;
u8 input_phantom_updated;
u8 input_select_updated;
@ -1027,6 +1102,12 @@ struct scarlett2_data {
u8 pad_switch[SCARLETT2_PAD_SWITCH_MAX];
u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT];
u8 air_switch[SCARLETT2_AIR_SWITCH_MAX];
u8 dsp_switch[SCARLETT2_DSP_SWITCH_MAX];
s32 compressor_values[SCARLETT2_COMPRESSOR_CTLS_MAX];
s32 precomp_flt_values[SCARLETT2_PRECOMP_FLT_VALUES_MAX];
s32 peq_flt_values[SCARLETT2_PEQ_FLT_VALUES_MAX];
u8 precomp_flt_switch[SCARLETT2_DSP_SWITCH_MAX];
u8 peq_flt_switch[SCARLETT2_DSP_SWITCH_MAX];
u8 input_mute_switch[SCARLETT2_INPUT_MUTE_SWITCH_MAX];
u8 phantom_switch[SCARLETT2_PHANTOM_SWITCH_MAX];
u8 phantom_persistence;
@ -1055,6 +1136,7 @@ struct scarlett2_data {
struct snd_kcontrol *level_ctls[SCARLETT2_LEVEL_SWITCH_MAX];
struct snd_kcontrol *pad_ctls[SCARLETT2_PAD_SWITCH_MAX];
struct snd_kcontrol *air_ctls[SCARLETT2_AIR_SWITCH_MAX];
struct snd_kcontrol *dsp_ctls[SCARLETT2_DSP_SWITCH_MAX];
struct snd_kcontrol *input_mute_ctls[SCARLETT2_INPUT_MUTE_SWITCH_MAX];
struct snd_kcontrol *phantom_ctls[SCARLETT2_PHANTOM_SWITCH_MAX];
struct snd_kcontrol *input_select_ctl;
@ -1066,6 +1148,11 @@ struct scarlett2_data {
struct snd_kcontrol *pcm_input_switch_ctl;
struct snd_kcontrol *mux_ctls[SCARLETT2_MUX_MAX];
struct snd_kcontrol *mix_ctls[SCARLETT2_MIX_MAX];
struct snd_kcontrol *compressor_ctls[SCARLETT2_COMPRESSOR_CTLS_MAX];
struct snd_kcontrol *precomp_flt_ctls[SCARLETT2_PRECOMP_FLT_CTLS_MAX];
struct snd_kcontrol *peq_flt_ctls[SCARLETT2_PEQ_FLT_CTLS_MAX];
struct snd_kcontrol *precomp_flt_switch_ctls[SCARLETT2_DSP_SWITCH_MAX];
struct snd_kcontrol *peq_flt_switch_ctls[SCARLETT2_DSP_SWITCH_MAX];
struct snd_kcontrol *direct_monitor_ctl;
struct snd_kcontrol *speaker_switching_ctl;
struct snd_kcontrol *talkback_ctl;
@ -2174,6 +2261,54 @@ static int scarlett2_usb_set_data(
&req, sizeof(u32) * 2 + size, NULL, 0);
}
/* Send a SCARLETT2_USB_SET_DATA command with multiple values.
* offset: location in the device's data space
* size: size in bytes of each value (1, 2, 4)
* count: number of values
*/
static int scarlett2_usb_set_data_buf(
struct usb_mixer_interface *mixer,
int offset, int size, int count, void *buf)
{
struct scarlett2_data *private = mixer->private_data;
int bytes = size * count;
struct {
__le32 offset;
__le32 size;
u8 data[];
} __packed *req;
int err;
int buf_size = struct_size(req, data, bytes);
req = kmalloc(buf_size, GFP_KERNEL);
if (!req)
return -ENOMEM;
req->offset = cpu_to_le32(offset);
req->size = cpu_to_le32(bytes);
if (size == 1) {
memcpy(req->data, buf, count);
} else if (size == 2) {
u16 *buf_16 = buf;
int i;
for (i = 0; i < count; i++)
((__le16 *)req->data)[i] = cpu_to_le16(buf_16[i]);
} else {
u32 *buf_32 = buf;
int i;
for (i = 0; i < count; i++)
((__le32 *)req->data)[i] = cpu_to_le32(buf_32[i]);
}
err = scarlett2_usb(private->mixer, SCARLETT2_USB_SET_DATA,
req, buf_size, NULL, 0);
kfree(req);
return err;
}
/* Send a SCARLETT2_USB_DATA_CMD command.
* Configuration changes require activation with this after they have
* been uploaded by a previous SCARLETT2_USB_SET_DATA.
@ -2288,6 +2423,47 @@ static int scarlett2_usb_set_config(
return 0;
}
/* Send USB messages to set a SCARLETT2_CONFIG_* parameter with
* multiple values
*/
static int scarlett2_usb_set_config_buf(
struct usb_mixer_interface *mixer,
int config_item_num, int index, int count, void *buf)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_config_set *config_set = private->config_set;
const struct scarlett2_config *config_item =
&config_set->items[config_item_num];
int offset, size;
int err;
/* Check that the configuration item is present in the
* configuration set used by this device
*/
if (!config_item->offset)
return -EFAULT;
/* Convert config_item->size in bits to size in bytes and
* calculate offset
*/
if (config_item->size >= 8) {
size = config_item->size / 8;
offset = config_item->offset + index * size;
/* Bit updates not supported */
} else {
return -EFAULT;
}
/* Write the new values */
err = scarlett2_usb_set_data_buf(mixer, offset, size, count, buf);
if (err < 0)
return err;
/* Activate the change */
return scarlett2_usb_activate_config(mixer, config_item->activate);
}
/* Send SCARLETT2_USB_DATA_CMD SCARLETT2_USB_CONFIG_SAVE */
static void scarlett2_config_save(struct usb_mixer_interface *mixer)
{
@ -2985,6 +3161,8 @@ static void scarlett2_autogain_update_access(struct usb_mixer_interface *mixer)
scarlett2_set_ctl_access(private->input_mute_ctls[i], val);
for (i = 0; i < info->phantom_count; i++)
scarlett2_set_ctl_access(private->phantom_ctls[i], val);
for (i = 0; i < info->dsp_input_count; i++)
scarlett2_set_ctl_access(private->dsp_ctls[i], val);
}
/* Notify of access mode change for all controls read-only while
@ -3018,6 +3196,9 @@ static void scarlett2_autogain_notify_access(struct usb_mixer_interface *mixer)
for (i = 0; i < info->air_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->air_ctls[i]->id);
for (i = 0; i < info->dsp_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->dsp_ctls[i]->id);
for (i = 0; i < info->mute_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->input_mute_ctls[i]->id);
@ -4635,6 +4816,576 @@ static const struct snd_kcontrol_new scarlett2_air_ctl[2] = {
}
};
/*** DSP Switch Control ***/
static int scarlett2_update_input_dsp(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_dsp_updated = 0;
if (!info->dsp_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_DSP_SWITCH,
info->dsp_input_count, private->dsp_switch);
}
static int scarlett2_dsp_ctl_get(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_dsp_updated) {
err = scarlett2_update_input_dsp(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] = private->dsp_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_dsp_ctl_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int index = elem->control;
int oval, val, err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->dsp_switch[index];
val = ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->dsp_switch[index] = val;
/* Send switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_DSP_SWITCH,
index, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_dsp_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_autogain_disables_ctl_info,
.get = scarlett2_dsp_ctl_get,
.put = scarlett2_dsp_ctl_put,
};
/*** DSP Compressor Parameter Controls ***/
static int scarlett2_update_compressor_values(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int err, i, j;
if (!info->dsp_input_count)
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_COMPRESSOR_PARAMS,
SCARLETT2_COMPRESSOR_PARAM_COUNT * info->dsp_input_count,
private->compressor_values);
if (err < 0)
return err;
for (i = 0; i < SCARLETT2_COMPRESSOR_PARAM_COUNT; i++) {
const struct compressor_param *param = &compressor_params[i];
for (j = 0; j < info->dsp_input_count; j++) {
int idx = i + j * SCARLETT2_COMPRESSOR_PARAM_COUNT;
int val = private->compressor_values[idx];
val >>= param->scale_bits;
val = clamp(val, param->min, param->max);
private->compressor_values[idx] = val;
}
}
return 0;
}
static int scarlett2_compressor_ctl_get(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct scarlett2_data *private = elem->head.mixer->private_data;
ucontrol->value.integer.value[0] =
private->compressor_values[elem->control];
return 0;
}
static int scarlett2_compressor_ctl_put(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int index = elem->control;
int channel = index / SCARLETT2_COMPRESSOR_PARAM_COUNT;
int param_index = index % SCARLETT2_COMPRESSOR_PARAM_COUNT;
int oval, val, err;
s32 scaled_val;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->compressor_values[index];
val = ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->compressor_values[index] = val;
const struct compressor_param *param = &compressor_params[param_index];
scaled_val = val << param->scale_bits;
/* Send change to the device */
/* The channel needs to be put in the parameter buffer index
* field (param_buf_addr + 1); the value field isn't used in
* this case.
*/
err = scarlett2_usb_set_data(
mixer, private->config_set->param_buf_addr + 1, 1, channel);
if (err < 0)
goto unlock;
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_COMPRESSOR_PARAMS, index, scaled_val);
if (err < 0)
goto unlock;
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_compressor_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
int control = elem->control % SCARLETT2_COMPRESSOR_PARAM_COUNT;
uinfo->type = compressor_params[control].type;
uinfo->count = 1;
uinfo->value.integer.min = compressor_params[control].min;
uinfo->value.integer.max = compressor_params[control].max;
uinfo->value.integer.step = 1;
return 0;
}
static const struct snd_kcontrol_new scarlett2_compressor_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "",
.info = scarlett2_compressor_ctl_info,
.get = scarlett2_compressor_ctl_get,
.put = scarlett2_compressor_ctl_put,
};
/*** DSP Pre-Compressor and PEQ Filter Controls ***/
static int scarlett2_precomp_flt_switch_ctl_get(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct scarlett2_data *private = elem->head.mixer->private_data;
ucontrol->value.integer.value[0] = private->precomp_flt_switch[elem->control];
return 0;
}
static int scarlett2_peq_flt_switch_ctl_get(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct scarlett2_data *private = elem->head.mixer->private_data;
ucontrol->value.integer.value[0] =
private->peq_flt_switch[elem->control];
return 0;
}
static int scarlett2_precomp_flt_switch_ctl_put(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int oval, val, err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
oval = private->precomp_flt_switch[elem->control];
val = ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->precomp_flt_switch[elem->control] = val;
/* Send change to the device */
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_PRECOMP_FLT_SWITCH,
elem->control, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_peq_flt_switch_ctl_put(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int oval, val, err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
oval = private->peq_flt_switch[elem->control];
val = ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->peq_flt_switch[elem->control] = val;
/* Send change to the device */
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_PEQ_FLT_SWITCH,
elem->control, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_precomp_flt_switch_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "",
.info = snd_ctl_boolean_mono_info,
.get = scarlett2_precomp_flt_switch_ctl_get,
.put = scarlett2_precomp_flt_switch_ctl_put,
};
static const struct snd_kcontrol_new scarlett2_peq_flt_switch_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "",
.info = snd_ctl_boolean_mono_info,
.get = scarlett2_peq_flt_switch_ctl_get,
.put = scarlett2_peq_flt_switch_ctl_put,
};
static int scarlett2_update_filter_values(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int err, i, j, k, src_idx, dst_idx;
s32 peq_flt_values[SCARLETT2_DSP_SWITCH_MAX *
SCARLETT2_PEQ_FLT_SLOTS_MAX *
SCARLETT2_BIQUAD_COEFFS];
if (!info->dsp_input_count)
return 0;
/* Get filter switch values */
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PRECOMP_FLT_SWITCH,
info->dsp_input_count, private->precomp_flt_switch);
if (err < 0)
return err;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PEQ_FLT_SWITCH,
info->dsp_input_count * info->peq_flt_count,
private->peq_flt_switch);
if (err < 0)
return err;
/* Get pre-compressor filter values directly */
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PRECOMP_FLT_PARAMS,
info->dsp_input_count *
info->precomp_flt_count *
SCARLETT2_BIQUAD_COEFFS,
private->precomp_flt_values);
if (err < 0)
return err;
/* PEQ filter values need to be copied via buffer because of
* padding after peq_flt_count up to peq_flt_total_count
*/
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_PEQ_FLT_PARAMS,
info->dsp_input_count *
info->peq_flt_total_count *
SCARLETT2_BIQUAD_COEFFS,
peq_flt_values);
for (i = 0, dst_idx = 0; i < info->dsp_input_count; i++) {
src_idx = i *
info->peq_flt_total_count *
SCARLETT2_BIQUAD_COEFFS;
for (j = 0; j < info->peq_flt_count; j++)
for (k = 0;
k < SCARLETT2_BIQUAD_COEFFS;
k++, src_idx++, dst_idx++)
private->peq_flt_values[dst_idx] =
peq_flt_values[src_idx];
}
return 0;
}
static int scarlett2_precomp_flt_ctl_get(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct scarlett2_data *private = elem->head.mixer->private_data;
int i, idx;
for (i = 0, idx = elem->control * SCARLETT2_BIQUAD_COEFFS;
i < SCARLETT2_BIQUAD_COEFFS;
i++, idx++)
ucontrol->value.integer.value[i] =
private->precomp_flt_values[idx];
return 0;
}
static int scarlett2_peq_flt_ctl_get(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct scarlett2_data *private = elem->head.mixer->private_data;
int i, idx;
for (i = 0, idx = elem->control * SCARLETT2_BIQUAD_COEFFS;
i < SCARLETT2_BIQUAD_COEFFS;
i++, idx++)
ucontrol->value.integer.value[i] =
private->peq_flt_values[idx];
return 0;
}
static int scarlett2_precomp_flt_ctl_put(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int index = elem->control * SCARLETT2_BIQUAD_COEFFS;
int i, oval, val, err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
/* Check if any of the values have changed; if not, return */
for (i = 0; i < SCARLETT2_BIQUAD_COEFFS; i++) {
oval = private->precomp_flt_values[index + i];
val = ucontrol->value.integer.value[i];
if (oval != val)
break;
}
if (i == SCARLETT2_BIQUAD_COEFFS)
goto unlock;
/* Update the values */
for (i = 0; i < SCARLETT2_BIQUAD_COEFFS; i++)
private->precomp_flt_values[index + i] =
ucontrol->value.integer.value[i];
/* Send change to the device */
err = scarlett2_usb_set_data(
mixer, private->config_set->param_buf_addr, 1, index);
if (err < 0)
goto unlock;
err = scarlett2_usb_set_config_buf(
mixer, SCARLETT2_CONFIG_PRECOMP_FLT_PARAMS,
index, SCARLETT2_BIQUAD_COEFFS,
&private->precomp_flt_values[index]);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_peq_flt_ctl_put(
struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int src_index = elem->control * SCARLETT2_BIQUAD_COEFFS;
int dst_index = (
elem->control /
info->peq_flt_count *
info->peq_flt_total_count +
elem->control % info->peq_flt_count
) * SCARLETT2_BIQUAD_COEFFS;
int i, oval, val, err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
/* Check if any of the values have changed; if not, return */
for (i = 0; i < SCARLETT2_BIQUAD_COEFFS; i++) {
oval = private->peq_flt_values[src_index + i];
val = ucontrol->value.integer.value[i];
if (oval != val)
break;
}
if (i == SCARLETT2_BIQUAD_COEFFS)
goto unlock;
/* Update the values */
for (i = 0; i < SCARLETT2_BIQUAD_COEFFS; i++)
private->peq_flt_values[src_index + i] =
ucontrol->value.integer.value[i];
/* Send change to the device */
err = scarlett2_usb_set_data(
mixer, private->config_set->param_buf_addr, 1, dst_index);
if (err < 0)
goto unlock;
err = scarlett2_usb_set_config_buf(
mixer, SCARLETT2_CONFIG_PEQ_FLT_PARAMS,
dst_index, SCARLETT2_BIQUAD_COEFFS,
&private->peq_flt_values[src_index]);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_flt_ctl_info(
struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = SCARLETT2_BIQUAD_COEFFS;
uinfo->value.integer.min = INT_MIN;
uinfo->value.integer.max = INT_MAX;
uinfo->value.integer.step = 1;
return 0;
}
static const struct snd_kcontrol_new scarlett2_precomp_flt_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "",
.info = scarlett2_flt_ctl_info,
.get = scarlett2_precomp_flt_ctl_get,
.put = scarlett2_precomp_flt_ctl_put,
};
static const struct snd_kcontrol_new scarlett2_peq_flt_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "",
.info = scarlett2_flt_ctl_info,
.get = scarlett2_peq_flt_ctl_get,
.put = scarlett2_peq_flt_ctl_put,
};
/*** Input Mute Switch Controls ***/
static int scarlett2_update_input_mute(struct usb_mixer_interface *mixer)
@ -5568,6 +6319,69 @@ static int scarlett2_add_line_out_ctls(struct usb_mixer_interface *mixer)
/*** Create the analogue input controls ***/
static int scarlett2_add_dsp_ctls(struct usb_mixer_interface *mixer, int i)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int j, err;
char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
const char *compr_fmt = "Line In %d Compressor %s";
const char *flt_switch_fmt = "Line In %d %s Filter Enable";
const char *flt_fmt = "Line In %d %s Coefficients %d";
/* Add compressor controls */
for (j = 0; j < SCARLETT2_COMPRESSOR_PARAM_COUNT; j++) {
const struct compressor_param *param = &compressor_params[j];
int idx = i * SCARLETT2_COMPRESSOR_PARAM_COUNT + j;
scnprintf(s, sizeof(s), compr_fmt, i + 1, param->name);
err = scarlett2_add_new_ctl(
mixer, &scarlett2_compressor_ctl,
i * SCARLETT2_COMPRESSOR_PARAM_COUNT + j,
1, s, &private->compressor_ctls[idx]);
if (err < 0)
return err;
}
/* Add filter enable controls */
scnprintf(s, sizeof(s), flt_switch_fmt, i + 1, "Pre-Comp");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_precomp_flt_switch_ctl,
i, 1, s, &private->precomp_flt_switch_ctls[i]);
if (err < 0)
return err;
scnprintf(s, sizeof(s), flt_switch_fmt, i + 1, "PEQ");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_peq_flt_switch_ctl,
i, 1, s, &private->peq_flt_switch_ctls[i]);
if (err < 0)
return err;
/* Add filter coefficient controls */
for (j = 0; j < info->precomp_flt_count; j++) {
scnprintf(s, sizeof(s), flt_fmt, i + 1, "Pre-Comp", j + 1);
err = scarlett2_add_new_ctl(
mixer, &scarlett2_precomp_flt_ctl,
i * info->precomp_flt_count + j,
1, s, &private->precomp_flt_switch_ctls[j]);
if (err < 0)
return err;
}
for (j = 0; j < info->peq_flt_count; j++) {
scnprintf(s, sizeof(s), flt_fmt, i + 1, "PEQ", j + 1);
err = scarlett2_add_new_ctl(
mixer, &scarlett2_peq_flt_ctl,
i * info->peq_flt_count + j,
1, s, &private->peq_flt_switch_ctls[j]);
if (err < 0)
return err;
}
return 0;
}
static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
@ -5607,6 +6421,19 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
return err;
}
/* Add input DSP controls */
for (i = 0; i < info->dsp_input_count; i++) {
scnprintf(s, sizeof(s), fmt, i + 1, "DSP", "Switch");
err = scarlett2_add_new_ctl(mixer, &scarlett2_dsp_ctl,
i, 1, s, &private->dsp_ctls[i]);
if (err < 0)
return err;
err = scarlett2_add_dsp_ctls(mixer, i);
if (err < 0)
return err;
}
/* Add input mute controls */
for (i = 0; i < info->mute_input_count; i++) {
scnprintf(s, sizeof(s), fmt, i + 1, "Mute", "Switch");
@ -6678,6 +7505,22 @@ static void scarlett2_notify_input_air(struct usb_mixer_interface *mixer)
&private->air_ctls[i]->id);
}
/* Notify on input DSP switch change */
static __always_unused void scarlett2_notify_input_dsp(
struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int i;
private->input_dsp_updated = 1;
for (i = 0; i < info->dsp_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->dsp_ctls[i]->id);
}
/* Notify on input mute switch change */
static __always_unused void scarlett2_notify_input_mute(
struct usb_mixer_interface *mixer)
@ -7307,6 +8150,18 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
if (err < 0)
return err;
err = scarlett2_update_input_dsp(mixer);
if (err < 0)
return err;
err = scarlett2_update_compressor_values(mixer);
if (err < 0)
return err;
err = scarlett2_update_filter_values(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_mute(mixer);
if (err < 0)
return err;