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Diffstat (limited to 'include/linux/usb/audio.h')
-rw-r--r--include/linux/usb/audio.h120
1 files changed, 114 insertions, 6 deletions
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index eaf9dffe0a01..6bb293684eb8 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -25,6 +25,9 @@
#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
@@ -32,8 +35,17 @@
#define UAC_MIXER_UNIT 0x04
#define UAC_SELECTOR_UNIT 0x05
#define UAC_FEATURE_UNIT 0x06
-#define UAC_PROCESSING_UNIT 0x07
-#define UAC_EXTENSION_UNIT 0x08
+#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
@@ -66,6 +78,10 @@
#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
@@ -81,7 +97,7 @@
/* Terminal Control Selectors */
/* 4.3.2 Class-Specific AC Interface Descriptor */
-struct uac_ac_header_descriptor {
+struct uac_ac_header_descriptor_v1 {
__u8 bLength; /* 8 + n */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* UAC_MS_HEADER */
@@ -95,7 +111,7 @@ struct uac_ac_header_descriptor {
/* As above, but more useful for defining your own descriptors: */
#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n) \
-struct uac_ac_header_descriptor_##n { \
+struct uac_ac_header_descriptor_v1_##n { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
@@ -130,8 +146,12 @@ struct uac_input_terminal_descriptor {
#define UAC_INPUT_TERMINAL_MICROPHONE_ARRAY 0x205
#define UAC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY 0x206
+/* Terminals - control selectors */
+
+#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL 0x01
+
/* 4.3.2.2 Output Terminal Descriptor */
-struct uac_output_terminal_descriptor {
+struct uac_output_terminal_descriptor_v1 {
__u8 bLength; /* in bytes: 9 */
__u8 bDescriptorType; /* CS_INTERFACE descriptor type */
__u8 bDescriptorSubtype; /* OUTPUT_TERMINAL descriptor subtype */
@@ -171,7 +191,7 @@ struct uac_feature_unit_descriptor_##ch { \
} __attribute__ ((packed))
/* 4.5.2 Class-Specific AS Interface Descriptor */
-struct uac_as_header_descriptor {
+struct uac_as_header_descriptor_v1 {
__u8 bLength; /* in bytes: 7 */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* AS_GENERAL */
@@ -180,6 +200,19 @@ struct uac_as_header_descriptor {
__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 */
@@ -232,11 +265,62 @@ struct uac_format_type_i_discrete_descriptor_##n { \
#define UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n) (8 + (n * 3))
+struct uac_format_type_i_ext_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bSubslotSize;
+ __u8 bFormatType;
+ __u8 bBitResolution;
+ __u8 bHeaderLength;
+ __u8 bControlSize;
+ __u8 bSideBandProtocol;
+} __attribute__((packed));
+
+
+/* Formats - Audio Data Format Type I Codes */
+
+#define UAC_FORMAT_TYPE_II_MPEG 0x1001
+#define UAC_FORMAT_TYPE_II_AC3 0x1002
+
+struct uac_format_type_ii_discrete_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bFormatType;
+ __le16 wMaxBitRate;
+ __le16 wSamplesPerFrame;
+ __u8 bSamFreqType;
+ __u8 tSamFreq[][3];
+} __attribute__((packed));
+
+struct uac_format_type_ii_ext_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bFormatType;
+ __u16 wMaxBitRate;
+ __u16 wSamplesPerFrame;
+ __u8 bHeaderLength;
+ __u8 bSideBandProtocol;
+} __attribute__((packed));
+
+/* type III */
+#define UAC_FORMAT_TYPE_III_IEC1937_AC3 0x2001
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG1_LAYER1 0x2002
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_NOEXT 0x2003
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_EXT 0x2004
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER1_LS 0x2005
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER23_LS 0x2006
+
/* Formats - A.2 Format Type Codes */
#define UAC_FORMAT_TYPE_UNDEFINED 0x0
#define UAC_FORMAT_TYPE_I 0x1
#define UAC_FORMAT_TYPE_II 0x2
#define UAC_FORMAT_TYPE_III 0x3
+#define UAC_EXT_FORMAT_TYPE_I 0x81
+#define UAC_EXT_FORMAT_TYPE_II 0x82
+#define UAC_EXT_FORMAT_TYPE_III 0x83
struct uac_iso_endpoint_descriptor {
__u8 bLength; /* in bytes: 7 */
@@ -252,7 +336,31 @@ 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 {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bUnitID;
+ __u8 bSourceID;
+ __u8 bControlSize;
+ __u8 controls[0]; /* variable length */
+} __attribute__((packed));
+
#define UAC_FU_CONTROL_UNDEFINED 0x00
#define UAC_MUTE_CONTROL 0x01
#define UAC_VOLUME_CONTROL 0x02