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authorDaniel Mack <daniel@caiaq.de>2010-02-22 23:49:10 +0100
committerTakashi Iwai <tiwai@suse.de>2010-02-23 08:40:20 +0100
commit8fee4aff8c89c229593b76a6ab172a9cad24b412 (patch)
treefa04320ed558000ee0e131808e14698ddd4fe3ce /sound
parent28e1b773083d349d5223f586a39fa30f5d0f1c36 (diff)
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/usbaudio.h19
-rw-r--r--sound/usb/usbmixer.c14
2 files changed, 23 insertions, 10 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 9d8cea48fc5..4f482939e8e 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -36,8 +36,17 @@
#define MIXER_UNIT 0x04
#define SELECTOR_UNIT 0x05
#define FEATURE_UNIT 0x06
-#define PROCESSING_UNIT 0x07
-#define EXTENSION_UNIT 0x08
+#define PROCESSING_UNIT_V1 0x07
+#define EXTENSION_UNIT_V1 0x08
+
+/* audio class v2 */
+#define EFFECT_UNIT 0x07
+#define PROCESSING_UNIT_V2 0x08
+#define EXTENSION_UNIT_V2 0x09
+#define CLOCK_SOURCE 0x0a
+#define CLOCK_SELECTOR 0x0b
+#define CLOCK_MULTIPLIER 0x0c
+#define SAMPLE_RATE_CONVERTER 0x0d
#define AS_GENERAL 0x01
#define FORMAT_TYPE 0x02
@@ -60,7 +69,7 @@
#define EP_CS_ATTR_PITCH_CONTROL 0x02
#define EP_CS_ATTR_FILL_MAX 0x80
-/* Audio Class specific Request Codes */
+/* Audio Class specific Request Codes (v1) */
#define SET_CUR 0x01
#define GET_CUR 0x81
@@ -74,6 +83,10 @@
#define GET_MEM 0x85
#define GET_STAT 0xff
+/* Audio Class specific Request Codes (v2) */
+#define CS_CUR 0x01
+#define CS_RANGE 0x02
+
/* Terminal Control Selectors */
#define COPY_PROTECT_CONTROL 0x01
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 11636a6112d..ca794959819 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -286,7 +286,7 @@ static void *find_audio_control_unit(struct mixer_build *state, unsigned char un
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 @@ static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm
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 @@ static int check_input_term(struct mixer_build *state, int id, struct usb_audio_
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 @@ static int parse_audio_unit(struct mixer_build *state, int unitid)
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]);