USB audio gadget: Prefix all macro definitions with UAC_ in linux/usb/audio.h

linux/usb/audio.h is a public header file that includes definitions
exported to userspace. To avoid namespace clashes, prefix all macro
definitions with UAC_. Existing macros and structures prefixed with
USB_AC_ and USB_AS_ are renamed for consistency.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 132 insertions, 126 deletions

diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index f75092aba02f..c3edfcb72c34 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -25,80 +25,77 @@
 #define USB_SUBCLASS_AUDIOSTREAMING     0x02
 #define USB_SUBCLASS_MIDISTREAMING      0x03
 
-/* A.5 Audio Class-Specific AC interface Descriptor Subtypes*/
-#define HEADER                          0x01
-#define INPUT_TERMINAL                  0x02
-#define OUTPUT_TERMINAL                 0x03
-#define MIXER_UNIT                      0x04
-#define SELECTOR_UNIT                   0x05
-#define FEATURE_UNIT                    0x06
-#define PROCESSING_UNIT                 0x07
-#define EXTENSION_UNIT                  0x08
-
-#define AS_GENERAL                      0x01
-#define FORMAT_TYPE                     0x02
-#define FORMAT_SPECIFIC                 0x03
-
-#define EP_GENERAL                      0x01
-
-#define MS_GENERAL                      0x01
-#define MIDI_IN_JACK                    0x02
-#define MIDI_OUT_JACK                   0x03
-
-/* cs endpoint attributes */
-#define EP_CS_ATTR_SAMPLE_RATE          0x01
-#define EP_CS_ATTR_PITCH_CONTROL        0x02
-#define EP_CS_ATTR_FILL_MAX             0x80
-
-/* Audio Class specific Request Codes */
-#define USB_AUDIO_SET_INTF              0x21
-#define USB_AUDIO_SET_ENDPOINT          0x22
-#define USB_AUDIO_GET_INTF              0xa1
-#define USB_AUDIO_GET_ENDPOINT          0xa2
-
-#define SET_    0x00
-#define GET_    0x80
-
-#define _CUR    0x1
-#define _MIN    0x2
-#define _MAX    0x3
-#define _RES    0x4
-#define _MEM    0x5
-
-#define SET_CUR         (SET_ | _CUR)
-#define GET_CUR         (GET_ | _CUR)
-#define SET_MIN         (SET_ | _MIN)
-#define GET_MIN         (GET_ | _MIN)
-#define SET_MAX         (SET_ | _MAX)
-#define GET_MAX         (GET_ | _MAX)
-#define SET_RES         (SET_ | _RES)
-#define GET_RES         (GET_ | _RES)
-#define SET_MEM         (SET_ | _MEM)
-#define GET_MEM         (GET_ | _MEM)
-
-#define GET_STAT        0xff
-
-#define USB_AC_TERMINAL_UNDEFINED       0x100
-#define USB_AC_TERMINAL_STREAMING       0x101
-#define USB_AC_TERMINAL_VENDOR_SPEC     0x1FF
+/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */
+#define UAC_HEADER                      0x01
+#define UAC_INPUT_TERMINAL              0x02
+#define UAC_OUTPUT_TERMINAL             0x03
+#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
+
+/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */
+#define UAC_AS_GENERAL                  0x01
+#define UAC_FORMAT_TYPE                 0x02
+#define UAC_FORMAT_SPECIFIC             0x03
+
+/* A.8 Audio Class-Specific Endpoint Descriptor Subtypes */
+#define UAC_EP_GENERAL                  0x01
+
+/* A.9 Audio Class-Specific Request Codes */
+#define UAC_SET_                        0x00
+#define UAC_GET_                        0x80
+
+#define UAC__CUR                        0x1
+#define UAC__MIN                        0x2
+#define UAC__MAX                        0x3
+#define UAC__RES                        0x4
+#define UAC__MEM                        0x5
+
+#define UAC_SET_CUR                     (UAC_SET_ | UAC__CUR)
+#define UAC_GET_CUR                     (UAC_GET_ | UAC__CUR)
+#define UAC_SET_MIN                     (UAC_SET_ | UAC__MIN)
+#define UAC_GET_MIN                     (UAC_GET_ | UAC__MIN)
+#define UAC_SET_MAX                     (UAC_SET_ | UAC__MAX)
+#define UAC_GET_MAX                     (UAC_GET_ | UAC__MAX)
+#define UAC_SET_RES                     (UAC_SET_ | UAC__RES)
+#define UAC_GET_RES                     (UAC_GET_ | UAC__RES)
+#define UAC_SET_MEM                     (UAC_SET_ | UAC__MEM)
+#define UAC_GET_MEM                     (UAC_GET_ | UAC__MEM)
+
+#define UAC_GET_STAT                    0xff
+
+/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */
+#define UAC_MS_HEADER                   0x01
+#define UAC_MIDI_IN_JACK                0x02
+#define UAC_MIDI_OUT_JACK               0x03
+
+/* MIDI - A.1 MS Class-Specific Endpoint Descriptor Subtypes */
+#define UAC_MS_GENERAL                  0x01
+
+/* Terminals - 2.1 USB Terminal Types */
+#define UAC_TERMINAL_UNDEFINED          0x100
+#define UAC_TERMINAL_STREAMING          0x101
+#define UAC_TERMINAL_VENDOR_SPEC        0x1FF
 
 /* Terminal Control Selectors */
 /* 4.3.2  Class-Specific AC Interface Descriptor */
-struct usb_ac_header_descriptor {
+struct uac_ac_header_descriptor {
         __u8  bLength;                  /* 8 + n */
         __u8  bDescriptorType;          /* USB_DT_CS_INTERFACE */
-        __u8  bDescriptorSubtype;       /* USB_MS_HEADER */
+        __u8  bDescriptorSubtype;       /* UAC_MS_HEADER */
         __le16 bcdADC;                  /* 0x0100 */
         __le16 wTotalLength;            /* includes Unit and Terminal desc. */
         __u8  bInCollection;            /* n */
         __u8  baInterfaceNr[];          /* [n] */
 } __attribute__ ((packed));
 
-#define USB_DT_AC_HEADER_SIZE(n)        (8 + (n))
+#define UAC_DT_AC_HEADER_SIZE(n)        (8 + (n))
 
 /* As above, but more useful for defining your own descriptors: */
-#define DECLARE_USB_AC_HEADER_DESCRIPTOR(n)                     \
-struct usb_ac_header_descriptor_##n {                           \
+#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n)                     \
+struct uac_ac_header_descriptor_##n {                           \
         __u8  bLength;                                          \
         __u8  bDescriptorType;                                  \
         __u8  bDescriptorSubtype;                               \
@@ -109,7 +106,7 @@ struct usb_ac_header_descriptor_##n {				\
 } __attribute__ ((packed))
 
 /* 4.3.2.1 Input Terminal Descriptor */
-struct usb_input_terminal_descriptor {
+struct uac_input_terminal_descriptor {
         __u8  bLength;                  /* in bytes: 12 */
         __u8  bDescriptorType;          /* CS_INTERFACE descriptor type */
         __u8  bDescriptorSubtype;       /* INPUT_TERMINAL descriptor subtype */
@@ -122,18 +119,19 @@ struct usb_input_terminal_descriptor {
         __u8  iTerminal;
 } __attribute__ ((packed));
 
-#define USB_DT_AC_INPUT_TERMINAL_SIZE                   12
+#define UAC_DT_INPUT_TERMINAL_SIZE                      12
 
-#define USB_AC_INPUT_TERMINAL_UNDEFINED                 0x200
-#define USB_AC_INPUT_TERMINAL_MICROPHONE                0x201
-#define USB_AC_INPUT_TERMINAL_DESKTOP_MICROPHONE        0x202
-#define USB_AC_INPUT_TERMINAL_PERSONAL_MICROPHONE       0x203
-#define USB_AC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE       0x204
-#define USB_AC_INPUT_TERMINAL_MICROPHONE_ARRAY          0x205
-#define USB_AC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY     0x206
+/* Terminals - 2.2 Input Terminal Types */
+#define UAC_INPUT_TERMINAL_UNDEFINED                    0x200
+#define UAC_INPUT_TERMINAL_MICROPHONE                   0x201
+#define UAC_INPUT_TERMINAL_DESKTOP_MICROPHONE           0x202
+#define UAC_INPUT_TERMINAL_PERSONAL_MICROPHONE          0x203
+#define UAC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE          0x204
+#define UAC_INPUT_TERMINAL_MICROPHONE_ARRAY             0x205
+#define UAC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY        0x206
 
 /* 4.3.2.2 Output Terminal Descriptor */
-struct usb_output_terminal_descriptor {
+struct uac_output_terminal_descriptor {
         __u8  bLength;                  /* in bytes: 9 */
         __u8  bDescriptorType;          /* CS_INTERFACE descriptor type */
         __u8  bDescriptorSubtype;       /* OUTPUT_TERMINAL descriptor subtype */
@@ -144,23 +142,24 @@ struct usb_output_terminal_descriptor {
         __u8  iTerminal;
 } __attribute__ ((packed));
 
-#define USB_DT_AC_OUTPUT_TERMINAL_SIZE                          9
+#define UAC_DT_OUTPUT_TERMINAL_SIZE                     9
 
-#define USB_AC_OUTPUT_TERMINAL_UNDEFINED                        0x300
-#define USB_AC_OUTPUT_TERMINAL_SPEAKER                          0x301
-#define USB_AC_OUTPUT_TERMINAL_HEADPHONES                       0x302
-#define USB_AC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO       0x303
-#define USB_AC_OUTPUT_TERMINAL_DESKTOP_SPEAKER                  0x304
-#define USB_AC_OUTPUT_TERMINAL_ROOM_SPEAKER                     0x305
-#define USB_AC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER            0x306
-#define USB_AC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER         0x307
+/* Terminals - 2.3 Output Terminal Types */
+#define UAC_OUTPUT_TERMINAL_UNDEFINED                   0x300
+#define UAC_OUTPUT_TERMINAL_SPEAKER                     0x301
+#define UAC_OUTPUT_TERMINAL_HEADPHONES                  0x302
+#define UAC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO  0x303
+#define UAC_OUTPUT_TERMINAL_DESKTOP_SPEAKER             0x304
+#define UAC_OUTPUT_TERMINAL_ROOM_SPEAKER                0x305
+#define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER       0x306
+#define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER    0x307
 
 /* Set bControlSize = 2 as default setting */
-#define USB_DT_AC_FEATURE_UNIT_SIZE(ch)         (7 + ((ch) + 1) * 2)
+#define UAC_DT_FEATURE_UNIT_SIZE(ch)            (7 + ((ch) + 1) * 2)
 
 /* As above, but more useful for defining your own descriptors: */
-#define DECLARE_USB_AC_FEATURE_UNIT_DESCRIPTOR(ch)              \
-struct usb_ac_feature_unit_descriptor_##ch {                    \
+#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch)                 \
+struct uac_feature_unit_descriptor_##ch {                       \
         __u8  bLength;                                          \
         __u8  bDescriptorType;                                  \
         __u8  bDescriptorSubtype;                               \
@@ -172,7 +171,7 @@ struct usb_ac_feature_unit_descriptor_##ch {			\
 } __attribute__ ((packed))
 
 /* 4.5.2 Class-Specific AS Interface Descriptor */
-struct usb_as_header_descriptor {
+struct uac_as_header_descriptor {
         __u8  bLength;                  /* in bytes: 7 */
         __u8  bDescriptorType;          /* USB_DT_CS_INTERFACE */
         __u8  bDescriptorSubtype;       /* AS_GENERAL */
@@ -181,16 +180,17 @@ struct usb_as_header_descriptor {
         __le16 wFormatTag;              /* The Audio Data Format */
 } __attribute__ ((packed));
 
-#define USB_DT_AS_HEADER_SIZE           7
+#define UAC_DT_AS_HEADER_SIZE           7
 
-#define USB_AS_AUDIO_FORMAT_TYPE_I_UNDEFINED    0x0
-#define USB_AS_AUDIO_FORMAT_TYPE_I_PCM          0x1
-#define USB_AS_AUDIO_FORMAT_TYPE_I_PCM8         0x2
-#define USB_AS_AUDIO_FORMAT_TYPE_I_IEEE_FLOAT   0x3
-#define USB_AS_AUDIO_FORMAT_TYPE_I_ALAW         0x4
-#define USB_AS_AUDIO_FORMAT_TYPE_I_MULAW        0x5
+/* Formats - A.1.1 Audio Data Format Type I Codes */
+#define UAC_FORMAT_TYPE_I_UNDEFINED     0x0
+#define UAC_FORMAT_TYPE_I_PCM           0x1
+#define UAC_FORMAT_TYPE_I_PCM8          0x2
+#define UAC_FORMAT_TYPE_I_IEEE_FLOAT    0x3
+#define UAC_FORMAT_TYPE_I_ALAW          0x4
+#define UAC_FORMAT_TYPE_I_MULAW         0x5
 
-struct usb_as_format_type_i_continuous_descriptor {
+struct uac_format_type_i_continuous_descriptor {
         __u8  bLength;                  /* in bytes: 8 + (ns * 3) */
         __u8  bDescriptorType;          /* USB_DT_CS_INTERFACE */
         __u8  bDescriptorSubtype;       /* FORMAT_TYPE */
@@ -203,9 +203,9 @@ struct usb_as_format_type_i_continuous_descriptor {
         __u8  tUpperSamFreq[3];
 } __attribute__ ((packed));
 
-#define USB_AS_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE       14
+#define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE  14
 
-struct usb_as_formate_type_i_discrete_descriptor {
+struct uac_format_type_i_discrete_descriptor {
         __u8  bLength;                  /* in bytes: 8 + (ns * 3) */
         __u8  bDescriptorType;          /* USB_DT_CS_INTERFACE */
         __u8  bDescriptorSubtype;       /* FORMAT_TYPE */
@@ -217,8 +217,8 @@ struct usb_as_formate_type_i_discrete_descriptor {
         __u8  tSamFreq[][3];
 } __attribute__ ((packed));
 
-#define DECLARE_USB_AS_FORMAT_TYPE_I_DISCRETE_DESC(n)           \
-struct usb_as_formate_type_i_discrete_descriptor_##n {          \
+#define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n)              \
+struct uac_format_type_i_discrete_descriptor_##n {              \
         __u8  bLength;                                          \
         __u8  bDescriptorType;                                  \
         __u8  bDescriptorSubtype;                               \
@@ -230,14 +230,15 @@ struct usb_as_formate_type_i_discrete_descriptor_##n {		\
         __u8  tSamFreq[n][3];                                   \
 } __attribute__ ((packed))
 
-#define USB_AS_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n)      (8 + (n * 3))
+#define UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n) (8 + (n * 3))
 
-#define USB_AS_FORMAT_TYPE_UNDEFINED    0x0
-#define USB_AS_FORMAT_TYPE_I            0x1
-#define USB_AS_FORMAT_TYPE_II           0x2
-#define USB_AS_FORMAT_TYPE_III          0x3
+/* 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
 
-struct usb_as_iso_endpoint_descriptor {
+struct uac_iso_endpoint_descriptor {
         __u8  bLength;                  /* in bytes: 7 */
         __u8  bDescriptorType;          /* USB_DT_CS_ENDPOINT */
         __u8  bDescriptorSubtype;       /* EP_GENERAL */
@@ -245,30 +246,35 @@ struct usb_as_iso_endpoint_descriptor {
         __u8  bLockDelayUnits;
         __le16 wLockDelay;
 };
-#define USB_AS_ISO_ENDPOINT_DESC_SIZE   7
-
-#define FU_CONTROL_UNDEFINED            0x00
-#define MUTE_CONTROL                    0x01
-#define VOLUME_CONTROL                  0x02
-#define BASS_CONTROL                    0x03
-#define MID_CONTROL                     0x04
-#define TREBLE_CONTROL                  0x05
-#define GRAPHIC_EQUALIZER_CONTROL       0x06
-#define AUTOMATIC_GAIN_CONTROL          0x07
-#define DELAY_CONTROL                   0x08
-#define BASS_BOOST_CONTROL              0x09
-#define LOUDNESS_CONTROL                0x0a
-
-#define FU_MUTE         (1 << (MUTE_CONTROL - 1))
-#define FU_VOLUME       (1 << (VOLUME_CONTROL - 1))
-#define FU_BASS         (1 << (BASS_CONTROL - 1))
-#define FU_MID          (1 << (MID_CONTROL - 1))
-#define FU_TREBLE       (1 << (TREBLE_CONTROL - 1))
-#define FU_GRAPHIC_EQ   (1 << (GRAPHIC_EQUALIZER_CONTROL - 1))
-#define FU_AUTO_GAIN    (1 << (AUTOMATIC_GAIN_CONTROL - 1))
-#define FU_DELAY        (1 << (DELAY_CONTROL - 1))
-#define FU_BASS_BOOST   (1 << (BASS_BOOST_CONTROL - 1))
-#define FU_LOUDNESS     (1 << (LOUDNESS_CONTROL - 1))
+#define UAC_ISO_ENDPOINT_DESC_SIZE      7
+
+#define UAC_EP_CS_ATTR_SAMPLE_RATE      0x01
+#define UAC_EP_CS_ATTR_PITCH_CONTROL    0x02
+#define UAC_EP_CS_ATTR_FILL_MAX         0x80
+
+/* A.10.2 Feature Unit Control Selectors */
+#define UAC_FU_CONTROL_UNDEFINED        0x00
+#define UAC_MUTE_CONTROL                0x01
+#define UAC_VOLUME_CONTROL              0x02
+#define UAC_BASS_CONTROL                0x03
+#define UAC_MID_CONTROL                 0x04
+#define UAC_TREBLE_CONTROL              0x05
+#define UAC_GRAPHIC_EQUALIZER_CONTROL   0x06
+#define UAC_AUTOMATIC_GAIN_CONTROL      0x07
+#define UAC_DELAY_CONTROL               0x08
+#define UAC_BASS_BOOST_CONTROL          0x09
+#define UAC_LOUDNESS_CONTROL            0x0a
+
+#define UAC_FU_MUTE             (1 << (UAC_MUTE_CONTROL - 1))
+#define UAC_FU_VOLUME           (1 << (UAC_VOLUME_CONTROL - 1))
+#define UAC_FU_BASS             (1 << (UAC_BASS_CONTROL - 1))
+#define UAC_FU_MID              (1 << (UAC_MID_CONTROL - 1))
+#define UAC_FU_TREBLE           (1 << (UAC_TREBLE_CONTROL - 1))
+#define UAC_FU_GRAPHIC_EQ       (1 << (UAC_GRAPHIC_EQUALIZER_CONTROL - 1))
+#define UAC_FU_AUTO_GAIN        (1 << (UAC_AUTOMATIC_GAIN_CONTROL - 1))
+#define UAC_FU_DELAY            (1 << (UAC_DELAY_CONTROL - 1))
+#define UAC_FU_BASS_BOOST       (1 << (UAC_BASS_BOOST_CONTROL - 1))
+#define UAC_FU_LOUDNESS         (1 << (UAC_LOUDNESS_CONTROL - 1))
 
 struct usb_audio_control {
         struct list_head list;