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-rw-r--r--include/linux/usb/audio.h50
1 files changed, 7 insertions, 43 deletions
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index 4d3e450e2b0..cdad728543a 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -13,6 +13,9 @@
* Comments below reference relevant sections of that document:
*
* http://www.usb.org/developers/devclass_docs/audio10.pdf
+ *
+ * Types and defines in this file are either specific to version 1.0 of
+ * this standard or common for newer versions.
*/
#ifndef __LINUX_USB_AUDIO_H
@@ -20,14 +23,15 @@
#include <linux/types.h>
+/* bInterfaceProtocol values to denote the version of the standard used */
+#define UAC_VERSION_1 0x00
+#define UAC_VERSION_2 0x20
+
/* A.2 Audio Interface Subclass Codes */
#define USB_SUBCLASS_AUDIOCONTROL 0x01
#define USB_SUBCLASS_AUDIOSTREAMING 0x02
#define USB_SUBCLASS_MIDISTREAMING 0x03
-#define UAC_VERSION_1 0x00
-#define UAC_VERSION_2 0x20
-
/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */
#define UAC_HEADER 0x01
#define UAC_INPUT_TERMINAL 0x02
@@ -38,15 +42,6 @@
#define UAC_PROCESSING_UNIT_V1 0x07
#define UAC_EXTENSION_UNIT_V1 0x08
-/* UAC v2.0 types */
-#define UAC_EFFECT_UNIT 0x07
-#define UAC_PROCESSING_UNIT_V2 0x08
-#define UAC_EXTENSION_UNIT_V2 0x09
-#define UAC_CLOCK_SOURCE 0x0a
-#define UAC_CLOCK_SELECTOR 0x0b
-#define UAC_CLOCK_MULTIPLIER 0x0c
-#define UAC_SAMPLE_RATE_CONVERTER 0x0d
-
/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */
#define UAC_AS_GENERAL 0x01
#define UAC_FORMAT_TYPE 0x02
@@ -78,10 +73,6 @@
#define UAC_GET_STAT 0xff
-/* Audio class v2.0 handles all the parameter calls differently */
-#define UAC2_CS_CUR 0x01
-#define UAC2_CS_RANGE 0x02
-
/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */
#define UAC_MS_HEADER 0x01
#define UAC_MIDI_IN_JACK 0x02
@@ -200,19 +191,6 @@ struct uac_as_header_descriptor_v1 {
__le16 wFormatTag; /* The Audio Data Format */
} __attribute__ ((packed));
-struct uac_as_header_descriptor_v2 {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubtype;
- __u8 bTerminalLink;
- __u8 bmControls;
- __u8 bFormatType;
- __u32 bmFormats;
- __u8 bNrChannels;
- __u32 bmChannelConfig;
- __u8 iChannelNames;
-} __attribute__((packed));
-
#define UAC_DT_AS_HEADER_SIZE 7
/* Formats - A.1.1 Audio Data Format Type I Codes */
@@ -277,7 +255,6 @@ struct uac_format_type_i_ext_descriptor {
__u8 bSideBandProtocol;
} __attribute__((packed));
-
/* Formats - Audio Data Format Type I Codes */
#define UAC_FORMAT_TYPE_II_MPEG 0x1001
@@ -336,19 +313,6 @@ struct uac_iso_endpoint_descriptor {
#define UAC_EP_CS_ATTR_PITCH_CONTROL 0x02
#define UAC_EP_CS_ATTR_FILL_MAX 0x80
-/* Audio class v2.0: CLOCK_SOURCE descriptor */
-
-struct uac_clock_source_descriptor {
- __u8 bLength;
- __u8 bDescriptorType;
- __u8 bDescriptorSubtype;
- __u8 bClockID;
- __u8 bmAttributes;
- __u8 bmControls;
- __u8 bAssocTerminal;
- __u8 iClockSource;
-} __attribute__((packed));
-
/* A.10.2 Feature Unit Control Selectors */
struct uac_feature_unit_descriptor {