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Diffstat (limited to 'sound/usb/mixer.c')
-rw-r--r--sound/usb/mixer.c496
1 files changed, 419 insertions, 77 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 157c0704817c..b9d9d2e99c78 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -50,6 +50,7 @@
#include <linux/usb.h>
#include <linux/usb/audio.h>
#include <linux/usb/audio-v2.h>
+#include <linux/usb/audio-v3.h>
#include <sound/core.h>
#include <sound/control.h>
@@ -184,6 +185,17 @@ static void *find_audio_control_unit(struct mixer_build *state,
/* we just parse the header */
struct uac_feature_unit_descriptor *hdr = NULL;
+ if (state->mixer->protocol == UAC_VERSION_3) {
+ int i;
+
+ for (i = 0; i < NUM_BADD_DESCS; i++) {
+ hdr = (void *)badd_desc_list[i];
+ if (hdr->bUnitID == unit)
+ return hdr;
+ }
+
+ return NULL;
+ }
while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr,
USB_DT_CS_INTERFACE)) != NULL) {
if (hdr->bLength >= 4 &&
@@ -717,7 +729,7 @@ static int check_input_term(struct mixer_build *state, int id,
term->channels = d->bNrChannels;
term->chconfig = le16_to_cpu(d->wChannelConfig);
term->name = d->iTerminal;
- } else { /* UAC_VERSION_2 */
+ } else if (state->mixer->protocol == UAC_VERSION_2) {
struct uac2_input_terminal_descriptor *d = p1;
/* call recursively to verify that the
@@ -734,6 +746,24 @@ static int check_input_term(struct mixer_build *state, int id,
term->channels = d->bNrChannels;
term->chconfig = le32_to_cpu(d->bmChannelConfig);
term->name = d->iTerminal;
+ } else { /* UAC_VERSION_3 */
+ struct uac3_input_terminal_descriptor *d = p1;
+
+ err = check_input_term(state,
+ d->bCSourceID, term);
+ if (err < 0)
+ return err;
+
+ term->id = id;
+ term->type = d->wTerminalType;
+ if (d->wClusterDescrID == CLUSTER_ID_MONO) {
+ term->channels = NUM_CHANNELS_MONO;
+ term->chconfig = BADD_CH_CONFIG_MONO;
+ } else {
+ term->channels = NUM_CHANNELS_STEREO;
+ term->chconfig = BADD_CH_CONFIG_STEREO;
+ }
+ term->name = d->wTerminalDescrStr;
}
return 0;
case UAC_FEATURE_UNIT: {
@@ -751,41 +781,81 @@ static int check_input_term(struct mixer_build *state, int id,
return 0;
}
case UAC_SELECTOR_UNIT:
- case UAC2_CLOCK_SELECTOR: {
- struct uac_selector_unit_descriptor *d = p1;
- /* call recursively to retrieve the channel info */
- err = check_input_term(state, d->baSourceID[0], term);
- if (err < 0)
- return err;
- term->type = d->bDescriptorSubtype << 16; /* virtual type */
- term->id = id;
- term->name = uac_selector_unit_iSelector(d);
+ /* UAC3_MIXER_UNIT_V3 */
+ case UAC2_CLOCK_SELECTOR:
+ /* UAC3_CLOCK_SOURCE */ {
+ if (state->mixer->protocol == UAC_VERSION_3
+ && hdr[2] == UAC3_CLOCK_SOURCE) {
+ struct uac3_clock_source_descriptor *d = p1;
+
+ term->type = d->bDescriptorSubtype << 16;
+ term->id = id;
+ term->name = d->wClockSourceStr;
+ } else if (state->mixer->protocol == UAC_VERSION_3
+ && hdr[2] == UAC3_MIXER_UNIT_V3) {
+ struct uac3_mixer_unit_descriptor *d = p1;
+
+ term->type = d->bDescriptorSubtype << 16;
+ if (d->wClusterDescrID == CLUSTER_ID_MONO) {
+ term->channels = NUM_CHANNELS_MONO;
+ term->chconfig = BADD_CH_CONFIG_MONO;
+ } else {
+ term->channels = NUM_CHANNELS_STEREO;
+ term->chconfig = BADD_CH_CONFIG_STEREO;
+ }
+ term->name = d->wMixerDescrStr;
+ } else {
+ struct uac_selector_unit_descriptor *d = p1;
+ /* call recursively to retrieve channel info */
+ err = check_input_term(state,
+ d->baSourceID[0], term);
+ if (err < 0)
+ return err;
+ /* virtual type */
+ term->type = d->bDescriptorSubtype << 16;
+ term->id = id;
+ term->name = uac_selector_unit_iSelector(d);
+ }
return 0;
}
case UAC1_PROCESSING_UNIT:
case UAC1_EXTENSION_UNIT:
/* UAC2_PROCESSING_UNIT_V2 */
/* UAC2_EFFECT_UNIT */
+ /* UAC3_FEATURE_UNIT_V3 */
case UAC2_EXTENSION_UNIT_V2: {
- struct uac_processing_unit_descriptor *d = p1;
+ if (state->mixer->protocol == UAC_VERSION_3) {
+ struct uac_feature_unit_descriptor *d = p1;
+
+ id = d->bSourceID;
+ } else {
+ struct uac_processing_unit_descriptor *d = p1;
+
+ if (state->mixer->protocol == UAC_VERSION_2 &&
+ hdr[2] == UAC2_EFFECT_UNIT) {
+ /* UAC2/UAC1 unit IDs overlap here in an
+ * uncompatible way. Ignore this unit
+ * for now.
+ */
+ return 0;
+ }
- if (state->mixer->protocol == UAC_VERSION_2 &&
- hdr[2] == UAC2_EFFECT_UNIT) {
- /* UAC2/UAC1 unit IDs overlap here in an
- * uncompatible way. Ignore this unit for now.
- */
+ if (d->bNrInPins) {
+ id = d->baSourceID[0];
+ break; /* continue to parse */
+ }
+ /* virtual type */
+ term->type = d->bDescriptorSubtype << 16;
+ term->channels =
+ uac_processing_unit_bNrChannels(d);
+ term->chconfig =
+ uac_processing_unit_wChannelConfig(
+ d, state->mixer->protocol);
+ term->name = uac_processing_unit_iProcessing(
+ d, state->mixer->protocol);
return 0;
}
-
- if (d->bNrInPins) {
- id = d->baSourceID[0];
- break; /* continue to parse */
- }
- term->type = d->bDescriptorSubtype << 16; /* virtual type */
- term->channels = uac_processing_unit_bNrChannels(d);
- term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol);
- term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol);
- return 0;
+ break;
}
case UAC2_CLOCK_SOURCE: {
struct uac_clock_source_descriptor *d = p1;
@@ -1232,12 +1302,18 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
struct usb_feature_control_info *ctl_info;
unsigned int len = 0;
int mapped_name = 0;
- int nameid = uac_feature_unit_iFeature(desc);
+ int nameid;
struct snd_kcontrol *kctl;
struct usb_mixer_elem_info *cval;
const struct usbmix_name_map *map;
unsigned int range;
+ if (state->mixer->protocol == UAC_VERSION_3)
+ nameid = ((struct uac3_feature_unit_descriptor *)
+ raw_desc)->wFeatureDescrStr;
+ else
+ nameid = uac_feature_unit_iFeature(desc);
+
control++; /* change from zero-based to 1-based value */
if (control == UAC_FU_GRAPHIC_EQUALIZER) {
@@ -1258,7 +1334,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
ctl_info = &audio_feature_info[control-1];
if (state->mixer->protocol == UAC_VERSION_1)
cval->val_type = ctl_info->type;
- else /* UAC_VERSION_2 */
+ else /* UAC_VERSION_2 or UAC_VERSION_3*/
cval->val_type = ctl_info->type_uac2 >= 0 ?
ctl_info->type_uac2 : ctl_info->type;
@@ -1381,6 +1457,62 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
snd_usb_mixer_add_control(&cval->head, kctl);
}
+static int find_num_channels(struct mixer_build *state, int dir)
+{
+ int num_ch = -EINVAL, num, i, j, wMaxPacketSize;
+ int ctrlif = get_iface_desc(state->mixer->hostif)->bInterfaceNumber;
+ struct usb_interface *usb_iface =
+ usb_ifnum_to_if(state->mixer->chip->dev, ctrlif);
+ struct usb_interface_assoc_descriptor *assoc = usb_iface->intf_assoc;
+ struct usb_host_interface *alts;
+
+ for (i = 0; i < assoc->bInterfaceCount; i++) {
+ int intf = assoc->bFirstInterface + i;
+
+ if (intf != ctrlif) {
+ struct usb_interface *iface =
+ usb_ifnum_to_if(state->mixer->chip->dev, intf);
+
+ alts = &iface->altsetting[1];
+ if (dir == USB_DIR_OUT &&
+ get_endpoint(alts, 0)->bEndpointAddress &
+ USB_DIR_IN)
+ continue;
+ if (dir == USB_DIR_IN &&
+ !(get_endpoint(alts, 0)->bEndpointAddress &
+ USB_DIR_IN))
+ continue;
+ num = iface->num_altsetting;
+ for (j = 1; j < num; j++) {
+ num_ch = NUM_CHANNELS_MONO;
+ alts = &iface->altsetting[j];
+ wMaxPacketSize = le16_to_cpu(
+ get_endpoint(alts, 0)->
+ wMaxPacketSize);
+ switch (wMaxPacketSize) {
+ case BADD_MAXPSIZE_SYNC_MONO_16:
+ case BADD_MAXPSIZE_SYNC_MONO_24:
+ case BADD_MAXPSIZE_ASYNC_MONO_16:
+ case BADD_MAXPSIZE_ASYNC_MONO_24:
+ break;
+ case BADD_MAXPSIZE_SYNC_STEREO_16:
+ case BADD_MAXPSIZE_SYNC_STEREO_24:
+ case BADD_MAXPSIZE_ASYNC_STEREO_16:
+ case BADD_MAXPSIZE_ASYNC_STEREO_24:
+ num_ch = NUM_CHANNELS_STEREO;
+ break;
+ }
+ if (num_ch == NUM_CHANNELS_MONO)
+ continue;
+ else
+ break;
+ }
+ }
+ }
+
+ return num_ch;
+}
+
/*
* parse a feature unit
*
@@ -1412,7 +1544,7 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
unitid);
return -EINVAL;
}
- } else {
+ } else if (state->mixer->protocol == UAC_VERSION_2) {
struct uac2_feature_unit_descriptor *ftr = _ftr;
csize = 4;
channels = (hdr->bLength - 6) / 4 - 1;
@@ -1423,11 +1555,114 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
unitid);
return -EINVAL;
}
+ } else {
+ struct usb_interface *usb_iface =
+ usb_ifnum_to_if(state->mixer->chip->dev,
+ get_iface_desc(state->mixer->hostif)->bInterfaceNumber);
+ struct usb_interface_assoc_descriptor *assoc =
+ usb_iface->intf_assoc;
+
+ csize = 4;
+ switch (unitid) {
+ case BADD_FU_ID_BAIOF:
+ channels = NUM_CHANNELS_MONO;
+ bmaControls = monoControls;
+ badd_baif_in_term_desc.wClusterDescrID =
+ CLUSTER_ID_MONO;
+ break;
+
+ case BADD_FU_ID_BAOF:
+ switch (assoc->bFunctionSubClass) {
+ case PROF_HEADPHONE:
+ case PROF_HEADSET_ADAPTER:
+ channels = NUM_CHANNELS_STEREO;
+ bmaControls = stereoControls;
+ badd_baiof_mu_desc.wClusterDescrID =
+ CLUSTER_ID_MONO;
+ break;
+ case PROF_SPEAKERPHONE:
+ channels = NUM_CHANNELS_MONO;
+ bmaControls = monoControls;
+ badd_baof_in_term_desc.wClusterDescrID =
+ CLUSTER_ID_MONO;
+ break;
+ default:
+ channels = find_num_channels(state,
+ USB_DIR_OUT);
+ if (channels < 0) {
+ usb_audio_err(state->chip,
+ "unit %u: Cant find num of channels\n",
+ unitid);
+ return channels;
+ }
+
+ bmaControls = (channels == NUM_CHANNELS_MONO) ?
+ monoControls : stereoControls;
+ badd_baof_in_term_desc.wClusterDescrID =
+ (channels == NUM_CHANNELS_MONO) ?
+ CLUSTER_ID_MONO : CLUSTER_ID_STEREO;
+ break;
+ }
+ break;
+
+ case BADD_FU_ID_BAIF:
+ switch (assoc->bFunctionSubClass) {
+ case PROF_HEADSET:
+ case PROF_HEADSET_ADAPTER:
+ case PROF_SPEAKERPHONE:
+ channels = NUM_CHANNELS_MONO;
+ bmaControls = monoControls;
+ badd_baif_in_term_desc.wClusterDescrID =
+ CLUSTER_ID_MONO;
+ break;
+ default:
+ channels = find_num_channels(state, USB_DIR_IN);
+ if (channels < 0) {
+ usb_audio_err(state->chip,
+ "unit %u: Cant find num of channels\n",
+ unitid);
+ return channels;
+ }
+
+ bmaControls = (channels == NUM_CHANNELS_MONO) ?
+ monoControls : stereoControls;
+ badd_baif_in_term_desc.wClusterDescrID =
+ (channels == NUM_CHANNELS_MONO) ?
+ CLUSTER_ID_MONO : CLUSTER_ID_STEREO;
+ break;
+ }
+ break;
+ }
}
/* parse the source unit */
- if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0)
- return err;
+ if (state->mixer->protocol != UAC_VERSION_3) {
+ err = parse_audio_unit(state, hdr->bSourceID);
+ if (err < 0)
+ return err;
+ } else {
+ struct usb_interface *usb_iface =
+ usb_ifnum_to_if(state->mixer->chip->dev,
+ get_iface_desc(state->mixer->hostif)->bInterfaceNumber);
+ struct usb_interface_assoc_descriptor *assoc =
+ usb_iface->intf_assoc;
+
+ switch (unitid) {
+ case BADD_FU_ID_BAOF:
+ switch (assoc->bFunctionSubClass) {
+ case PROF_HEADSET:
+ case PROF_HEADSET_ADAPTER:
+ hdr->bSourceID = BADD_MU_ID_BAIOF;
+ break;
+ default:
+ hdr->bSourceID = BADD_IN_TERM_ID_BAOF;
+ break;
+ }
+ }
+ err = parse_audio_unit(state, hdr->bSourceID);
+ if (err < 0)
+ return err;
+ }
/* determine the input source type and name */
err = check_input_term(state, hdr->bSourceID, &iterm);
@@ -1481,7 +1716,7 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
build_feature_ctl(state, _ftr, 0, i, &iterm,
unitid, 0);
}
- } else { /* UAC_VERSION_2 */
+ } else { /* UAC_VERSION_2 or UAC_VERSION_3*/
for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) {
unsigned int ch_bits = 0;
unsigned int ch_read_only = 0;
@@ -1599,12 +1834,19 @@ static int parse_audio_mixer_unit(struct mixer_build *state, int unitid,
int input_pins, num_ins, num_outs;
int pin, ich, err;
- if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) ||
- !(num_outs = uac_mixer_unit_bNrChannels(desc))) {
- usb_audio_err(state->chip,
- "invalid MIXER UNIT descriptor %d\n",
- unitid);
- return -EINVAL;
+ if (state->mixer->protocol == UAC_VERSION_3) {
+ input_pins = badd_baiof_mu_desc.bNrInPins;
+ num_outs =
+ (badd_baiof_mu_desc.wClusterDescrID == CLUSTER_ID_MONO) ?
+ NUM_CHANNELS_MONO : NUM_CHANNELS_STEREO;
+ } else {
+ if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) ||
+ !(num_outs = uac_mixer_unit_bNrChannels(desc))) {
+ usb_audio_err(state->chip,
+ "invalid MIXER UNIT descriptor %d\n",
+ unitid);
+ return -EINVAL;
+ }
}
num_ins = 0;
@@ -1624,9 +1866,14 @@ static int parse_audio_mixer_unit(struct mixer_build *state, int unitid,
int och, ich_has_controls = 0;
for (och = 0; och < num_outs; och++) {
- __u8 *c = uac_mixer_unit_bmControls(desc,
- state->mixer->protocol);
+ __u8 *c = NULL;
+ if (state->mixer->protocol == UAC_VERSION_3)
+ c =
+ &(badd_baiof_mu_desc.bmMixerControls);
+ else
+ c = uac_mixer_unit_bmControls(desc,
+ state->mixer->protocol);
if (check_matrix_bitmap(c, ich, och, num_outs)) {
ich_has_controls = 1;
break;
@@ -2134,16 +2381,28 @@ static int parse_audio_unit(struct mixer_build *state, int unitid)
case UAC_MIXER_UNIT:
return parse_audio_mixer_unit(state, unitid, p1);
case UAC_SELECTOR_UNIT:
+ /* UAC3_MIXER_UNIT_V3 has the same value */
case UAC2_CLOCK_SELECTOR:
- return parse_audio_selector_unit(state, unitid, p1);
+ /* UAC3_CLOCK_SOURCE has the same value */
+ if (state->mixer->protocol == UAC_VERSION_3 &&
+ p1[2] == UAC3_CLOCK_SOURCE)
+ return 0; /* NOP */
+ else if (state->mixer->protocol == UAC_VERSION_3
+ && p1[2] == UAC3_MIXER_UNIT_V3)
+ return parse_audio_mixer_unit(state, unitid, p1);
+ else
+ return parse_audio_selector_unit(state, unitid, p1);
case UAC_FEATURE_UNIT:
return parse_audio_feature_unit(state, unitid, p1);
case UAC1_PROCESSING_UNIT:
/* UAC2_EFFECT_UNIT has the same value */
+ /* UAC3_FEATURE_UNIT_V3 has the same value */
if (state->mixer->protocol == UAC_VERSION_1)
return parse_audio_processing_unit(state, unitid, p1);
- else
+ else if (state->mixer->protocol == UAC_VERSION_2)
return 0; /* FIXME - effect units not implemented yet */
+ else
+ return parse_audio_feature_unit(state, unitid, p1);
case UAC1_EXTENSION_UNIT:
/* UAC2_PROCESSING_UNIT_V2 has the same value */
if (state->mixer->protocol == UAC_VERSION_1)
@@ -2178,6 +2437,23 @@ static int snd_usb_mixer_dev_free(struct snd_device *device)
return 0;
}
+static int make_out_term(struct mixer_build state, int wTerminalType)
+{
+ struct uac3_output_terminal_descriptor *desc = NULL;
+
+ if (wTerminalType == UAC_TERMINAL_STREAMING)
+ desc = &badd_baif_out_term_desc;
+ else {
+ desc = &badd_baof_out_term_desc;
+ desc->wTerminalType = wTerminalType;
+ }
+ set_bit(desc->bTerminalID, state.unitbitmap);
+ state.oterm.id = desc->bTerminalID;
+ state.oterm.type = desc->wTerminalType;
+ state.oterm.name = desc->wTerminalDescrStr;
+ return parse_audio_unit(&state, desc->bSourceID);
+}
+
/*
* create mixer controls
*
@@ -2186,9 +2462,8 @@ static int snd_usb_mixer_dev_free(struct snd_device *device)
static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
{
struct mixer_build state;
- int err;
+ int err = -EINVAL;
const struct usbmix_ctl_map *map;
- void *p;
memset(&state, 0, sizeof(state));
state.chip = mixer->chip;
@@ -2206,44 +2481,108 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
}
}
- p = NULL;
- while ((p = snd_usb_find_csint_desc(mixer->hostif->extra,
- mixer->hostif->extralen,
- p, UAC_OUTPUT_TERMINAL)) != NULL) {
- if (mixer->protocol == UAC_VERSION_1) {
- struct uac1_output_terminal_descriptor *desc = p;
-
- if (desc->bLength < sizeof(*desc))
- continue; /* invalid descriptor? */
- /* mark terminal ID as visited */
- set_bit(desc->bTerminalID, state.unitbitmap);
- state.oterm.id = desc->bTerminalID;
- state.oterm.type = le16_to_cpu(desc->wTerminalType);
- state.oterm.name = desc->iTerminal;
- err = parse_audio_unit(&state, desc->bSourceID);
+ if (mixer->protocol == UAC_VERSION_3) {
+ struct usb_interface *usb_iface =
+ usb_ifnum_to_if(mixer->chip->dev,
+ get_iface_desc(mixer->hostif)->bInterfaceNumber);
+ struct usb_interface_assoc_descriptor *assoc =
+ usb_iface->intf_assoc;
+
+ switch (assoc->bFunctionSubClass) {
+ case PROF_GENERIC_IO: {
+ if (assoc->bInterfaceCount == 0x02) {
+ if (get_endpoint(mixer->hostif,
+ 0)->bEndpointAddress | USB_DIR_IN)
+ err = make_out_term(state,
+ UAC_TERMINAL_STREAMING);
+ else
+ err = make_out_term(state,
+ UAC_OUTPUT_TERMINAL_UNDEFINED);
+ } else {
+ err = make_out_term(state,
+ UAC_OUTPUT_TERMINAL_UNDEFINED);
+ if (err < 0 && err != -EINVAL)
+ return err;
+ err = make_out_term(state,
+ UAC_TERMINAL_STREAMING);
+ }
+ break;
+ }
+
+ case PROF_HEADPHONE:
+ err = make_out_term(state,
+ UAC_OUTPUT_TERMINAL_HEADPHONES);
+ break;
+ case PROF_SPEAKER:
+ err = make_out_term(state, UAC_OUTPUT_TERMINAL_SPEAKER);
+ break;
+ case PROF_MICROPHONE:
+ err = make_out_term(state, UAC_TERMINAL_STREAMING);
+ break;
+ case PROF_HEADSET:
+ case PROF_HEADSET_ADAPTER:
+ err = make_out_term(state, UAC_BIDIR_TERMINAL_HEADSET);
if (err < 0 && err != -EINVAL)
return err;
- } else { /* UAC_VERSION_2 */
- struct uac2_output_terminal_descriptor *desc = p;
-
- if (desc->bLength < sizeof(*desc))
- continue; /* invalid descriptor? */
- /* mark terminal ID as visited */
- set_bit(desc->bTerminalID, state.unitbitmap);
- state.oterm.id = desc->bTerminalID;
- state.oterm.type = le16_to_cpu(desc->wTerminalType);
- state.oterm.name = desc->iTerminal;
- err = parse_audio_unit(&state, desc->bSourceID);
+ err = make_out_term(state, UAC_TERMINAL_STREAMING);
+ break;
+ case PROF_SPEAKERPHONE:
+ err = make_out_term(state,
+ UAC_BIDIR_TERMINAL_SPEAKERPHONE);
if (err < 0 && err != -EINVAL)
return err;
+ err = make_out_term(state, UAC_TERMINAL_STREAMING);
+ break;
+ }
+ if (err < 0 && err != -EINVAL)
+ return err;
+ } else {
+ void *p;
+
+ p = NULL;
+ while ((p = snd_usb_find_csint_desc(mixer->hostif->extra,
+ mixer->hostif->extralen, p,
+ UAC_OUTPUT_TERMINAL)) != NULL) {
+ if (mixer->protocol == UAC_VERSION_1) {
+ struct uac1_output_terminal_descriptor *desc =
+ p;
+
+ if (desc->bLength < sizeof(*desc))
+ continue; /* invalid descriptor? */
+ /* mark terminal ID as visited */
+ set_bit(desc->bTerminalID, state.unitbitmap);
+ state.oterm.id = desc->bTerminalID;
+ state.oterm.type =
+ le16_to_cpu(desc->wTerminalType);
+ state.oterm.name = desc->iTerminal;
+ err = parse_audio_unit(&state, desc->bSourceID);
+ if (err < 0 && err != -EINVAL)
+ return err;
+ } else { /* UAC_VERSION_2 */
+ struct uac2_output_terminal_descriptor *desc =
+ p;
+
+ if (desc->bLength < sizeof(*desc))
+ continue; /* invalid descriptor? */
+ /* mark terminal ID as visited */
+ set_bit(desc->bTerminalID, state.unitbitmap);
+ state.oterm.id = desc->bTerminalID;
+ state.oterm.type =
+ le16_to_cpu(desc->wTerminalType);
+ state.oterm.name = desc->iTerminal;
+ err = parse_audio_unit(&state, desc->bSourceID);
+ if (err < 0 && err != -EINVAL)
+ return err;
- /*
- * For UAC2, use the same approach to also add the
- * clock selectors
- */
- err = parse_audio_unit(&state, desc->bCSourceID);
- if (err < 0 && err != -EINVAL)
- return err;
+ /*
+ * For UAC2, use the same approach to also add
+ * the clock selectors
+ */
+ err = parse_audio_unit(&state,
+ desc->bCSourceID);
+ if (err < 0 && err != -EINVAL)
+ return err;
+ }
}
}
@@ -2478,6 +2817,9 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
case UAC_VERSION_2:
mixer->protocol = UAC_VERSION_2;
break;
+ case UAC_VERSION_3:
+ mixer->protocol = UAC_VERSION_3;
+ break;
}
if ((err = snd_usb_mixer_controls(mixer)) < 0 ||
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-18 14:36:41 +0000