ALSA: usbaudio: introduce new types for audio class v2
This patch adds some definitions for audio class v2.
Unfortunately, the UNIT types PROCESSING_UNIT and EXTENSION_UNIT have
different numerical representations in both standards, so there is need
for a _V1 add-on now. usbmixer.c is changed accordingly.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 11636a6..ca79495 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -286,7 +286,7 @@
p = NULL;
while ((p = snd_usb_find_desc(state->buffer, state->buflen, p,
USB_DT_CS_INTERFACE)) != NULL) {
- if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit)
+ if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT_V1 && p[3] == unit)
return p;
}
return NULL;
@@ -607,9 +607,9 @@
switch (iterm->type >> 16) {
case SELECTOR_UNIT:
strcpy(name, "Selector"); return 8;
- case PROCESSING_UNIT:
+ case PROCESSING_UNIT_V1:
strcpy(name, "Process Unit"); return 12;
- case EXTENSION_UNIT:
+ case EXTENSION_UNIT_V1:
strcpy(name, "Ext Unit"); return 8;
case MIXER_UNIT:
strcpy(name, "Mixer"); return 5;
@@ -673,8 +673,8 @@
term->id = id;
term->name = p1[9 + p1[0] - 1];
return 0;
- case PROCESSING_UNIT:
- case EXTENSION_UNIT:
+ case PROCESSING_UNIT_V1:
+ case EXTENSION_UNIT_V1:
if (p1[6] == 1) {
id = p1[7];
break; /* continue to parse */
@@ -1747,9 +1747,9 @@
return parse_audio_selector_unit(state, unitid, p1);
case FEATURE_UNIT:
return parse_audio_feature_unit(state, unitid, p1);
- case PROCESSING_UNIT:
+ case PROCESSING_UNIT_V1:
return parse_audio_processing_unit(state, unitid, p1);
- case EXTENSION_UNIT:
+ case EXTENSION_UNIT_V1:
return parse_audio_extension_unit(state, unitid, p1);
default:
snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]);