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-rw-r--r--sound/usb/mixer.c42
1 files changed, 35 insertions, 7 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index cb345360f811..a060d005e209 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -313,8 +313,8 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v
buf, sizeof(buf), 1000);
if (ret < 0) {
- snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
- request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type);
+ snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
+ request, validx, cval->mixer->ctrlif | (cval->id << 8), cval->val_type);
return ret;
}
@@ -610,6 +610,7 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm
*/
static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term)
{
+ int err;
void *p1;
memset(term, 0, sizeof(*term));
@@ -630,6 +631,11 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->channels = d->bNrChannels;
term->chconfig = le32_to_cpu(d->bmChannelConfig);
term->name = d->iTerminal;
+
+ /* call recursively to get the clock selectors */
+ err = check_input_term(state, d->bCSourceID, term);
+ if (err < 0)
+ return err;
}
return 0;
case UAC_FEATURE_UNIT: {
@@ -646,7 +652,8 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->name = uac_mixer_unit_iMixer(d);
return 0;
}
- case UAC_SELECTOR_UNIT: {
+ case UAC_SELECTOR_UNIT:
+ case UAC2_CLOCK_SELECTOR: {
struct uac_selector_unit_descriptor *d = p1;
/* call recursively to retrieve the channel info */
if (check_input_term(state, d->baSourceID[0], term) < 0)
@@ -669,6 +676,13 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol);
return 0;
}
+ case UAC2_CLOCK_SOURCE: {
+ struct uac_clock_source_descriptor *d = p1;
+ term->type = d->bDescriptorSubtype << 16; /* virtual type */
+ term->id = id;
+ term->name = d->iClockSource;
+ return 0;
+ }
default:
return -ENODEV;
}
@@ -1610,7 +1624,7 @@ static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_
struct usb_mixer_elem_info *cval = kcontrol->private_data;
int val, err;
- err = get_cur_ctl_value(cval, 0, &val);
+ err = get_cur_ctl_value(cval, cval->control << 8, &val);
if (err < 0) {
if (cval->mixer->ignore_ctl_error) {
ucontrol->value.enumerated.item[0] = 0;
@@ -1629,7 +1643,7 @@ static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
struct usb_mixer_elem_info *cval = kcontrol->private_data;
int val, oval, err;
- err = get_cur_ctl_value(cval, 0, &oval);
+ err = get_cur_ctl_value(cval, cval->control << 8, &oval);
if (err < 0) {
if (cval->mixer->ignore_ctl_error)
return 0;
@@ -1638,7 +1652,7 @@ static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
val = ucontrol->value.enumerated.item[0];
val = get_abs_value(cval, val);
if (val != oval) {
- set_cur_ctl_value(cval, 0, val);
+ set_cur_ctl_value(cval, cval->control << 8, val);
return 1;
}
return 0;
@@ -1720,6 +1734,11 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void
cval->res = 1;
cval->initialized = 1;
+ if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR)
+ cval->control = UAC2_CX_CLOCK_SELECTOR;
+ else
+ cval->control = 0;
+
namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL);
if (! namelist) {
snd_printk(KERN_ERR "cannot malloc\n");
@@ -1769,7 +1788,9 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void
if (! len)
strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name));
- if ((state->oterm.type & 0xff00) == 0x0100)
+ if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR)
+ append_ctl_name(kctl, " Clock Source");
+ else if ((state->oterm.type & 0xff00) == 0x0100)
append_ctl_name(kctl, " Capture Source");
else
append_ctl_name(kctl, " Playback Source");
@@ -1803,10 +1824,12 @@ static int parse_audio_unit(struct mixer_build *state, int unitid)
switch (p1[2]) {
case UAC_INPUT_TERMINAL:
+ case UAC2_CLOCK_SOURCE:
return 0; /* NOP */
case UAC_MIXER_UNIT:
return parse_audio_mixer_unit(state, unitid, p1);
case UAC_SELECTOR_UNIT:
+ case UAC2_CLOCK_SELECTOR:
return parse_audio_selector_unit(state, unitid, p1);
case UAC_FEATURE_UNIT:
return parse_audio_feature_unit(state, unitid, p1);
@@ -1903,6 +1926,11 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
err = parse_audio_unit(&state, desc->bSourceID);
if (err < 0)
return err;
+
+ /* for UAC2, use the same approach to also add the clock selectors */
+ err = parse_audio_unit(&state, desc->bCSourceID);
+ if (err < 0)
+ return err;
}
}