@@ -324,6 +324,8 @@ static void scarlett2_notify_input_safe(struct usb_mixer_interface *mixer);
static void scarlett2_notify_monitor_other(struct usb_mixer_interface *mixer);
static void scarlett2_notify_direct_monitor(struct usb_mixer_interface *mixer);
static void scarlett2_notify_power_status(struct usb_mixer_interface *mixer);
+static void scarlett2_notify_pcm_input_switch(
+ struct usb_mixer_interface *mixer);
/* Arrays of notification callback functions */
@@ -351,6 +353,7 @@ static const struct scarlett2_notification scarlett4_solo_notifications[] = {
{ 0x00800000, scarlett2_notify_direct_monitor },
{ 0x01000000, scarlett2_notify_input_level },
{ 0x02000000, scarlett2_notify_input_phantom },
+ { 0x04000000, scarlett2_notify_pcm_input_switch },
{ 0, NULL }
};
@@ -413,6 +416,7 @@ enum {
SCARLETT2_CONFIG_INPUT_LINK_SWITCH,
SCARLETT2_CONFIG_POWER_EXT,
SCARLETT2_CONFIG_POWER_STATUS,
+ SCARLETT2_CONFIG_PCM_INPUT_SWITCH,
SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN,
SCARLETT2_CONFIG_COUNT
};
@@ -624,6 +628,9 @@ static const struct scarlett2_config_set scarlett2_config_set_gen4_solo = {
[SCARLETT2_CONFIG_AIR_SWITCH] = {
.offset = 0x3e, .activate = 11 },
+ [SCARLETT2_CONFIG_PCM_INPUT_SWITCH] = {
+ .offset = 0x206, .activate = 25 },
+
[SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN] = {
.offset = 0x232, .size = 16, .activate = 26 }
}
@@ -955,6 +962,7 @@ struct scarlett2_data {
u8 input_gain_updated;
u8 autogain_updated;
u8 input_safe_updated;
+ u8 pcm_input_switch_updated;
u8 monitor_other_updated;
u8 direct_monitor_updated;
u8 mux_updated;
@@ -979,6 +987,7 @@ struct scarlett2_data {
u8 autogain_switch[SCARLETT2_INPUT_GAIN_MAX];
u8 autogain_status[SCARLETT2_INPUT_GAIN_MAX];
u8 safe_switch[SCARLETT2_INPUT_GAIN_MAX];
+ u8 pcm_input_switch;
u8 direct_monitor_switch;
u8 speaker_switching_switch;
u8 talkback_switch;
@@ -1004,6 +1013,7 @@ struct scarlett2_data {
struct snd_kcontrol *autogain_ctls[SCARLETT2_INPUT_GAIN_MAX];
struct snd_kcontrol *autogain_status_ctls[SCARLETT2_INPUT_GAIN_MAX];
struct snd_kcontrol *safe_ctls[SCARLETT2_INPUT_GAIN_MAX];
+ 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 *direct_monitor_ctl;
@@ -3633,6 +3643,101 @@ static const struct snd_kcontrol_new scarlett2_safe_ctl = {
.put = scarlett2_safe_ctl_put,
};
+/*** PCM Input Control ***/
+
+static int scarlett2_update_pcm_input_switch(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+ int err;
+
+ private->pcm_input_switch_updated = 0;
+
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_PCM_INPUT_SWITCH,
+ 1, &private->pcm_input_switch);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int scarlett2_pcm_input_switch_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 = elem->head.mixer->private_data;
+ int err = 0;
+
+ mutex_lock(&private->data_mutex);
+
+ if (private->pcm_input_switch_updated) {
+ err = scarlett2_update_pcm_input_switch(mixer);
+ if (err < 0)
+ goto unlock;
+ }
+ ucontrol->value.enumerated.item[0] = private->pcm_input_switch;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static int scarlett2_pcm_input_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->pcm_input_switch;
+ val = !!ucontrol->value.integer.value[0];
+
+ if (oval == val)
+ goto unlock;
+
+ private->pcm_input_switch = val;
+
+ /* Send switch change to the device */
+ err = scarlett2_usb_set_config(
+ mixer, SCARLETT2_CONFIG_PCM_INPUT_SWITCH,
+ 0, val);
+ if (err == 0)
+ err = 1;
+
+unlock:
+ mutex_unlock(&private->data_mutex);
+ return err;
+}
+
+static int scarlett2_pcm_input_switch_ctl_info(
+ struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo)
+{
+ static const char *const values[2] = {
+ "Direct", "Mixer"
+ };
+
+ return snd_ctl_enum_info(
+ uinfo, 1, 2, values);
+}
+
+static const struct snd_kcontrol_new scarlett2_pcm_input_switch_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "",
+ .info = scarlett2_pcm_input_switch_ctl_info,
+ .get = scarlett2_pcm_input_switch_ctl_get,
+ .put = scarlett2_pcm_input_switch_ctl_put
+};
+
/*** Analogue Line Out Volume Controls ***/
/* Update hardware volume controls after receiving notification that
@@ -5419,6 +5524,17 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
}
}
+ /* Add PCM Input Switch control */
+ if (scarlett2_has_config_item(private,
+ SCARLETT2_CONFIG_PCM_INPUT_SWITCH)) {
+ err = scarlett2_add_new_ctl(
+ mixer, &scarlett2_pcm_input_switch_ctl, 0, 1,
+ "PCM Input Capture Switch",
+ &private->pcm_input_switch_ctl);
+ if (err < 0)
+ return err;
+ }
+
return 0;
}
@@ -6650,6 +6766,13 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
if (err < 0)
return err;
+ if (scarlett2_has_config_item(private,
+ SCARLETT2_CONFIG_PCM_INPUT_SWITCH)) {
+ err = scarlett2_update_pcm_input_switch(mixer);
+ if (err < 0)
+ return err;
+ }
+
err = scarlett2_update_mix(mixer);
if (err < 0)
return err;
@@ -6946,6 +7069,34 @@ static void scarlett2_notify_power_status(struct usb_mixer_interface *mixer)
&private->power_status_ctl->id);
}
+/* Notify on mux change */
+static void scarlett2_notify_mux(struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+ int i;
+
+ private->mux_updated = 1;
+
+ for (i = 0; i < private->num_mux_dsts; i++)
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->mux_ctls[i]->id);
+}
+
+/* Notify on PCM input switch change */
+static void scarlett2_notify_pcm_input_switch(struct usb_mixer_interface *mixer)
+{
+ struct snd_card *card = mixer->chip->card;
+ struct scarlett2_data *private = mixer->private_data;
+
+ private->pcm_input_switch_updated = 1;
+
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &private->pcm_input_switch_ctl->id);
+
+ scarlett2_notify_mux(mixer);
+}
+
/* Interrupt callback */
static void scarlett2_notify(struct urb *urb)
{
When the Direct button on the Solo Gen 4 is held for 3 seconds, the PCM 1 and 2 inputs are toggled between DSP Outputs 1 and 2, and Mixer Outputs E and F. This patch adds the corresponding ALSA control. Signed-off-by: Geoffrey D. Bennett <g@b4.vu> --- sound/usb/mixer_scarlett2.c | 151 ++++++++++++++++++++++++++++++++++++ 1 file changed, 151 insertions(+)