linux/usb/audio.h: split header

- Split the audio.h file in two to clearly denote the differences
  between the standards.
- Add many more defines to audio-v2.h. Most of them are not currently
  used.
- Replaced a magic value with a proper define

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 43 deletions

diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index 4d3e450e2b03..cdad728543ae 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 {