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Commit d40ce170 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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Merge tag 'disintegrate-usb-20121009' of... 

Merge tag 'disintegrate-usb-20121009' of git://git.infradead.org/users/dhowells/linux-headers into usb-linus

UAPI Disintegration 2012-10-09
parents b001b297 5e1ddb48
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include/linux/usb/Kbuild
View file @ d40ce170
header-y += audio.h
header-y += cdc.h
header-y += ch9.h
header-y += ch11.h
header-y += functionfs.h
header-y += gadgetfs.h
header-y += midi.h
header-y += g_printer.h
header-y += tmc.h
header-y += video.h
include/linux/usb/audio.h
View file @ d40ce170
......@@ -17,531 +17,11 @@
* 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
#define __LINUX_USB_AUDIO_H
#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
/* 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 UAC1_PROCESSING_UNIT 0x07
#define UAC1_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.7 Processing Unit Process Types */
#define UAC_PROCESS_UNDEFINED 0x00
#define UAC_PROCESS_UP_DOWNMIX 0x01
#define UAC_PROCESS_DOLBY_PROLOGIC 0x02
#define UAC_PROCESS_STEREO_EXTENDER 0x03
#define UAC_PROCESS_REVERB 0x04
#define UAC_PROCESS_CHORUS 0x05
#define UAC_PROCESS_DYN_RANGE_COMP 0x06
/* 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
/* A.10 Control Selector Codes */
/* A.10.1 Terminal Control Selectors */
#define UAC_TERM_COPY_PROTECT 0x01
/* A.10.2 Feature Unit Control Selectors */
#define UAC_FU_MUTE 0x01
#define UAC_FU_VOLUME 0x02
#define UAC_FU_BASS 0x03
#define UAC_FU_MID 0x04
#define UAC_FU_TREBLE 0x05
#define UAC_FU_GRAPHIC_EQUALIZER 0x06
#define UAC_FU_AUTOMATIC_GAIN 0x07
#define UAC_FU_DELAY 0x08
#define UAC_FU_BASS_BOOST 0x09
#define UAC_FU_LOUDNESS 0x0a
#define UAC_CONTROL_BIT(CS) (1 << ((CS) - 1))
/* A.10.3.1 Up/Down-mix Processing Unit Controls Selectors */
#define UAC_UD_ENABLE 0x01
#define UAC_UD_MODE_SELECT 0x02
/* A.10.3.2 Dolby Prologic (tm) Processing Unit Controls Selectors */
#define UAC_DP_ENABLE 0x01
#define UAC_DP_MODE_SELECT 0x02
/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
#define UAC_3D_ENABLE 0x01
#define UAC_3D_SPACE 0x02
/* A.10.3.4 Reverberation Processing Unit Control Selectors */
#define UAC_REVERB_ENABLE 0x01
#define UAC_REVERB_LEVEL 0x02
#define UAC_REVERB_TIME 0x03
#define UAC_REVERB_FEEDBACK 0x04
/* A.10.3.5 Chorus Processing Unit Control Selectors */
#define UAC_CHORUS_ENABLE 0x01
#define UAC_CHORUS_LEVEL 0x02
#define UAC_CHORUS_RATE 0x03
#define UAC_CHORUS_DEPTH 0x04
/* A.10.3.6 Dynamic Range Compressor Unit Control Selectors */
#define UAC_DCR_ENABLE 0x01
#define UAC_DCR_RATE 0x02
#define UAC_DCR_MAXAMPL 0x03
#define UAC_DCR_THRESHOLD 0x04
#define UAC_DCR_ATTACK_TIME 0x05
#define UAC_DCR_RELEASE_TIME 0x06
/* A.10.4 Extension Unit Control Selectors */
#define UAC_XU_ENABLE 0x01
/* 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 uac1_ac_header_descriptor {
__u8 bLength; /* 8 + n */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* UAC_MS_HEADER */
__le16 bcdADC; /* 0x0100 */
__le16 wTotalLength; /* includes Unit and Terminal desc. */
__u8 bInCollection; /* n */
__u8 baInterfaceNr[]; /* [n] */
} __attribute__ ((packed));
#define UAC_DT_AC_HEADER_SIZE(n) (8 + (n))
/* As above, but more useful for defining your own descriptors: */
#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n) \
struct uac1_ac_header_descriptor_##n { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
__le16 bcdADC; \
__le16 wTotalLength; \
__u8 bInCollection; \
__u8 baInterfaceNr[n]; \
} __attribute__ ((packed))
/* 4.3.2.1 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 */
__u8 bTerminalID; /* Constant uniquely terminal ID */
__le16 wTerminalType; /* USB Audio Terminal Types */
__u8 bAssocTerminal; /* ID of the Output Terminal associated */
__u8 bNrChannels; /* Number of logical output channels */
__le16 wChannelConfig;
__u8 iChannelNames;
__u8 iTerminal;
} __attribute__ ((packed));
#define UAC_DT_INPUT_TERMINAL_SIZE 12
/* 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
/* Terminals - control selectors */
#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL 0x01
/* 4.3.2.2 Output Terminal Descriptor */
struct uac1_output_terminal_descriptor {
__u8 bLength; /* in bytes: 9 */
__u8 bDescriptorType; /* CS_INTERFACE descriptor type */
__u8 bDescriptorSubtype; /* OUTPUT_TERMINAL descriptor subtype */
__u8 bTerminalID; /* Constant uniquely terminal ID */
__le16 wTerminalType; /* USB Audio Terminal Types */
__u8 bAssocTerminal; /* ID of the Input Terminal associated */
__u8 bSourceID; /* ID of the connected Unit or Terminal*/
__u8 iTerminal;
} __attribute__ ((packed));
#define UAC_DT_OUTPUT_TERMINAL_SIZE 9
/* 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 UAC_DT_FEATURE_UNIT_SIZE(ch) (7 + ((ch) + 1) * 2)
/* As above, but more useful for defining your own descriptors: */
#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch) \
struct uac_feature_unit_descriptor_##ch { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
__u8 bUnitID; \
__u8 bSourceID; \
__u8 bControlSize; \
__le16 bmaControls[ch + 1]; \
__u8 iFeature; \
} __attribute__ ((packed))
/* 4.3.2.3 Mixer Unit Descriptor */
struct uac_mixer_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
#include <uapi/linux/usb/audio.h>
static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc)
{
return desc->baSourceID[desc->bNrInPins];
}
static inline __u32 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc,
int protocol)
{
if (protocol == UAC_VERSION_1)
return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
desc->baSourceID[desc->bNrInPins + 1];
else
return (desc->baSourceID[desc->bNrInPins + 4] << 24) |
(desc->baSourceID[desc->bNrInPins + 3] << 16) |
(desc->baSourceID[desc->bNrInPins + 2] << 8) |
(desc->baSourceID[desc->bNrInPins + 1]);
}
static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
desc->baSourceID[desc->bNrInPins + 3] :
desc->baSourceID[desc->bNrInPins + 5];
}
static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
&desc->baSourceID[desc->bNrInPins + 4] :
&desc->baSourceID[desc->bNrInPins + 6];
}
static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
}
/* 4.3.2.4 Selector Unit Descriptor */
struct uac_selector_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUintID;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
}
/* 4.3.2.5 Feature Unit Descriptor */
struct uac_feature_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
__u8 bSourceID;
__u8 bControlSize;
__u8 bmaControls[0]; /* variable length */
} __attribute__((packed));
static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
}
/* 4.3.2.6 Processing Unit Descriptors */
struct uac_processing_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
__u16 wProcessType;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc)
{
return desc->baSourceID[desc->bNrInPins];
}
static inline __u32 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc,
int protocol)
{
if (protocol == UAC_VERSION_1)
return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
desc->baSourceID[desc->bNrInPins + 1];
else
return (desc->baSourceID[desc->bNrInPins + 4] << 24) |
(desc->baSourceID[desc->bNrInPins + 3] << 16) |
(desc->baSourceID[desc->bNrInPins + 2] << 8) |
(desc->baSourceID[desc->bNrInPins + 1]);
}
static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
desc->baSourceID[desc->bNrInPins + 3] :
desc->baSourceID[desc->bNrInPins + 5];
}
static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
desc->baSourceID[desc->bNrInPins + 4] :
desc->baSourceID[desc->bNrInPins + 6];
}
static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
&desc->baSourceID[desc->bNrInPins + 5] :
&desc->baSourceID[desc->bNrInPins + 7];
}
static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
int protocol)
{
__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
return desc->baSourceID[desc->bNrInPins + control_size];
}
static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc,
int protocol)
{
__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
return &desc->baSourceID[desc->bNrInPins + control_size + 1];
}
/* 4.5.2 Class-Specific AS Interface Descriptor */
struct uac1_as_header_descriptor {
__u8 bLength; /* in bytes: 7 */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* AS_GENERAL */
__u8 bTerminalLink; /* Terminal ID of connected Terminal */
__u8 bDelay; /* Delay introduced by the data path */
__le16 wFormatTag; /* The Audio Data Format */
} __attribute__ ((packed));
#define UAC_DT_AS_HEADER_SIZE 7
/* 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 uac_format_type_i_continuous_descriptor {
__u8 bLength; /* in bytes: 8 + (ns * 3) */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* FORMAT_TYPE */
__u8 bFormatType; /* FORMAT_TYPE_1 */
__u8 bNrChannels; /* physical channels in the stream */
__u8 bSubframeSize; /* */
__u8 bBitResolution;
__u8 bSamFreqType;
__u8 tLowerSamFreq[3];
__u8 tUpperSamFreq[3];
} __attribute__ ((packed));
#define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE 14
struct uac_format_type_i_discrete_descriptor {
__u8 bLength; /* in bytes: 8 + (ns * 3) */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* FORMAT_TYPE */
__u8 bFormatType; /* FORMAT_TYPE_1 */
__u8 bNrChannels; /* physical channels in the stream */
__u8 bSubframeSize; /* */
__u8 bBitResolution;
__u8 bSamFreqType;
__u8 tSamFreq[][3];
} __attribute__ ((packed));
#define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n) \
struct uac_format_type_i_discrete_descriptor_##n { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
__u8 bFormatType; \
__u8 bNrChannels; \
__u8 bSubframeSize; \
__u8 bBitResolution; \
__u8 bSamFreqType; \
__u8 tSamFreq[n][3]; \
} __attribute__ ((packed))
#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 bFormatType;
__u8 bSubslotSize;
__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 */
__u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */
__u8 bDescriptorSubtype; /* EP_GENERAL */
__u8 bmAttributes;
__u8 bLockDelayUnits;
__le16 wLockDelay;
} __attribute__((packed));
#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
/* status word format (3.7.1.1) */
#define UAC1_STATUS_TYPE_ORIG_MASK 0x0f
#define UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF 0x0
#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_IF 0x1
#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_EP 0x2
#define UAC1_STATUS_TYPE_IRQ_PENDING (1 << 7)
#define UAC1_STATUS_TYPE_MEM_CHANGED (1 << 6)
struct uac1_status_word {
__u8 bStatusType;
__u8 bOriginator;
} __attribute__((packed));
#ifdef __KERNEL__
struct usb_audio_control {
struct list_head list;
......@@ -561,6 +41,4 @@ struct usb_audio_control_selector {
struct usb_descriptor_header *desc;
};
#endif /* __KERNEL__ */
#endif /* __LINUX_USB_AUDIO_H */
include/linux/usb/ch9.h
View file @ d40ce170
......@@ -29,887 +29,11 @@
* someone that the two other points are non-issues for that
* particular descriptor type.
*/
#ifndef __LINUX_USB_CH9_H
#define __LINUX_USB_CH9_H
#include <linux/types.h> /* __u8 etc */
#include <asm/byteorder.h> /* le16_to_cpu */
/*-------------------------------------------------------------------------*/
/* CONTROL REQUEST SUPPORT */
/*
* USB directions
*
* This bit flag is used in endpoint descriptors' bEndpointAddress field.
* It's also one of three fields in control requests bRequestType.
*/
#define USB_DIR_OUT 0 /* to device */
#define USB_DIR_IN 0x80 /* to host */
/*
* USB types, the second of three bRequestType fields
*/
#define USB_TYPE_MASK (0x03 << 5)
#define USB_TYPE_STANDARD (0x00 << 5)
#define USB_TYPE_CLASS (0x01 << 5)
#define USB_TYPE_VENDOR (0x02 << 5)
#define USB_TYPE_RESERVED (0x03 << 5)
/*
* USB recipients, the third of three bRequestType fields
*/
#define USB_RECIP_MASK 0x1f
#define USB_RECIP_DEVICE 0x00
#define USB_RECIP_INTERFACE 0x01
#define USB_RECIP_ENDPOINT 0x02
#define USB_RECIP_OTHER 0x03
/* From Wireless USB 1.0 */
#define USB_RECIP_PORT 0x04
#define USB_RECIP_RPIPE 0x05
/*
* Standard requests, for the bRequest field of a SETUP packet.
*
* These are qualified by the bRequestType field, so that for example
* TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
* by a GET_STATUS request.
*/
#define USB_REQ_GET_STATUS 0x00
#define USB_REQ_CLEAR_FEATURE 0x01
#define USB_REQ_SET_FEATURE 0x03
#define USB_REQ_SET_ADDRESS 0x05
#define USB_REQ_GET_DESCRIPTOR 0x06
#define USB_REQ_SET_DESCRIPTOR 0x07
#define USB_REQ_GET_CONFIGURATION 0x08
#define USB_REQ_SET_CONFIGURATION 0x09
#define USB_REQ_GET_INTERFACE 0x0A
#define USB_REQ_SET_INTERFACE 0x0B
#define USB_REQ_SYNCH_FRAME 0x0C
#define USB_REQ_SET_SEL 0x30
#define USB_REQ_SET_ISOCH_DELAY 0x31
#define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */
#define USB_REQ_GET_ENCRYPTION 0x0E
#define USB_REQ_RPIPE_ABORT 0x0E
#define USB_REQ_SET_HANDSHAKE 0x0F
#define USB_REQ_RPIPE_RESET 0x0F
#define USB_REQ_GET_HANDSHAKE 0x10
#define USB_REQ_SET_CONNECTION 0x11
#define USB_REQ_SET_SECURITY_DATA 0x12
#define USB_REQ_GET_SECURITY_DATA 0x13
#define USB_REQ_SET_WUSB_DATA 0x14
#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
#define USB_REQ_LOOPBACK_DATA_READ 0x16
#define USB_REQ_SET_INTERFACE_DS 0x17
/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
* used by hubs to put ports into a new L1 suspend state, except that it
* forgot to define its number ...
*/
/*
* USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
* are read as a bit array returned by USB_REQ_GET_STATUS. (So there
* are at most sixteen features of each type.) Hubs may also support a
* new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend.
*/
#define USB_DEVICE_SELF_POWERED 0 /* (read only) */
#define USB_DEVICE_REMOTE_WAKEUP 1 /* dev may initiate wakeup */
#define USB_DEVICE_TEST_MODE 2 /* (wired high speed only) */
#define USB_DEVICE_BATTERY 2 /* (wireless) */
#define USB_DEVICE_B_HNP_ENABLE 3 /* (otg) dev may initiate HNP */
#define USB_DEVICE_WUSB_DEVICE 3 /* (wireless)*/
#define USB_DEVICE_A_HNP_SUPPORT 4 /* (otg) RH port supports HNP */
#define USB_DEVICE_A_ALT_HNP_SUPPORT 5 /* (otg) other RH port does */
#define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */
/*
* Test Mode Selectors
* See USB 2.0 spec Table 9-7
*/
#define TEST_J 1
#define TEST_K 2
#define TEST_SE0_NAK 3
#define TEST_PACKET 4
#define TEST_FORCE_EN 5
/*
* New Feature Selectors as added by USB 3.0
* See USB 3.0 spec Table 9-6
*/
#define USB_DEVICE_U1_ENABLE 48 /* dev may initiate U1 transition */
#define USB_DEVICE_U2_ENABLE 49 /* dev may initiate U2 transition */
#define USB_DEVICE_LTM_ENABLE 50 /* dev may send LTM */
#define USB_INTRF_FUNC_SUSPEND 0 /* function suspend */
#define USB_INTR_FUNC_SUSPEND_OPT_MASK 0xFF00
/*
* Suspend Options, Table 9-7 USB 3.0 spec
*/
#define USB_INTRF_FUNC_SUSPEND_LP (1 << (8 + 0))
#define USB_INTRF_FUNC_SUSPEND_RW (1 << (8 + 1))
#define USB_ENDPOINT_HALT 0 /* IN/OUT will STALL */
/* Bit array elements as returned by the USB_REQ_GET_STATUS request. */
#define USB_DEV_STAT_U1_ENABLED 2 /* transition into U1 state */
#define USB_DEV_STAT_U2_ENABLED 3 /* transition into U2 state */
#define USB_DEV_STAT_LTM_ENABLED 4 /* Latency tolerance messages */
/**
* struct usb_ctrlrequest - SETUP data for a USB device control request
* @bRequestType: matches the USB bmRequestType field
* @bRequest: matches the USB bRequest field
* @wValue: matches the USB wValue field (le16 byte order)
* @wIndex: matches the USB wIndex field (le16 byte order)
* @wLength: matches the USB wLength field (le16 byte order)
*
* This structure is used to send control requests to a USB device. It matches
* the different fields of the USB 2.0 Spec section 9.3, table 9-2. See the
* USB spec for a fuller description of the different fields, and what they are
* used for.
*
* Note that the driver for any interface can issue control requests.
* For most devices, interfaces don't coordinate with each other, so
* such requests may be made at any time.
*/
struct usb_ctrlrequest {
__u8 bRequestType;
__u8 bRequest;
__le16 wValue;
__le16 wIndex;
__le16 wLength;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/*
* STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
* (rarely) accepted by SET_DESCRIPTOR.
*
* Note that all multi-byte values here are encoded in little endian
* byte order "on the wire". Within the kernel and when exposed
* through the Linux-USB APIs, they are not converted to cpu byte
* order; it is the responsibility of the client code to do this.
* The single exception is when device and configuration descriptors (but
* not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
* in this case the fields are converted to host endianness by the kernel.
*/
/*
* Descriptor types ... USB 2.0 spec table 9.5
*/
#define USB_DT_DEVICE 0x01
#define USB_DT_CONFIG 0x02
#define USB_DT_STRING 0x03
#define USB_DT_INTERFACE 0x04
#define USB_DT_ENDPOINT 0x05
#define USB_DT_DEVICE_QUALIFIER 0x06
#define USB_DT_OTHER_SPEED_CONFIG 0x07
#define USB_DT_INTERFACE_POWER 0x08
/* these are from a minor usb 2.0 revision (ECN) */
#define USB_DT_OTG 0x09
#define USB_DT_DEBUG 0x0a
#define USB_DT_INTERFACE_ASSOCIATION 0x0b
/* these are from the Wireless USB spec */
#define USB_DT_SECURITY 0x0c
#define USB_DT_KEY 0x0d
#define USB_DT_ENCRYPTION_TYPE 0x0e
#define USB_DT_BOS 0x0f
#define USB_DT_DEVICE_CAPABILITY 0x10
#define USB_DT_WIRELESS_ENDPOINT_COMP 0x11
#define USB_DT_WIRE_ADAPTER 0x21
#define USB_DT_RPIPE 0x22
#define USB_DT_CS_RADIO_CONTROL 0x23
/* From the T10 UAS specification */
#define USB_DT_PIPE_USAGE 0x24
/* From the USB 3.0 spec */
#define USB_DT_SS_ENDPOINT_COMP 0x30
/* Conventional codes for class-specific descriptors. The convention is
* defined in the USB "Common Class" Spec (3.11). Individual class specs
* are authoritative for their usage, not the "common class" writeup.
*/
#define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE)
#define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG)
#define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING)
#define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE)
#define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT)
/* All standard descriptors have these 2 fields at the beginning */
struct usb_descriptor_header {
__u8 bLength;
__u8 bDescriptorType;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE: Device descriptor */
struct usb_device_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 bcdUSB;
__u8 bDeviceClass;
__u8 bDeviceSubClass;
__u8 bDeviceProtocol;
__u8 bMaxPacketSize0;
__le16 idVendor;
__le16 idProduct;
__le16 bcdDevice;
__u8 iManufacturer;
__u8 iProduct;
__u8 iSerialNumber;
__u8 bNumConfigurations;
} __attribute__ ((packed));
#define USB_DT_DEVICE_SIZE 18
/*
* Device and/or Interface Class codes
* as found in bDeviceClass or bInterfaceClass
* and defined by www.usb.org documents
*/
#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
#define USB_CLASS_AUDIO 1
#define USB_CLASS_COMM 2
#define USB_CLASS_HID 3
#define USB_CLASS_PHYSICAL 5
#define USB_CLASS_STILL_IMAGE 6
#define USB_CLASS_PRINTER 7
#define USB_CLASS_MASS_STORAGE 8
#define USB_CLASS_HUB 9
#define USB_CLASS_CDC_DATA 0x0a
#define USB_CLASS_CSCID 0x0b /* chip+ smart card */
#define USB_CLASS_CONTENT_SEC 0x0d /* content security */
#define USB_CLASS_VIDEO 0x0e
#define USB_CLASS_WIRELESS_CONTROLLER 0xe0
#define USB_CLASS_MISC 0xef
#define USB_CLASS_APP_SPEC 0xfe
#define USB_CLASS_VENDOR_SPEC 0xff
#define USB_SUBCLASS_VENDOR_SPEC 0xff
/*-------------------------------------------------------------------------*/
/* USB_DT_CONFIG: Configuration descriptor information.
*
* USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
* descriptor type is different. Highspeed-capable devices can look
* different depending on what speed they're currently running. Only
* devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
* descriptors.
*/
struct usb_config_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wTotalLength;
__u8 bNumInterfaces;
__u8 bConfigurationValue;
__u8 iConfiguration;
__u8 bmAttributes;
__u8 bMaxPower;
} __attribute__ ((packed));
#define USB_DT_CONFIG_SIZE 9
/* from config descriptor bmAttributes */
#define USB_CONFIG_ATT_ONE (1 << 7) /* must be set */
#define USB_CONFIG_ATT_SELFPOWER (1 << 6) /* self powered */
#define USB_CONFIG_ATT_WAKEUP (1 << 5) /* can wakeup */
#define USB_CONFIG_ATT_BATTERY (1 << 4) /* battery powered */
/*-------------------------------------------------------------------------*/
/* USB_DT_STRING: String descriptor */
struct usb_string_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wData[1]; /* UTF-16LE encoded */
} __attribute__ ((packed));
/* note that "string" zero is special, it holds language codes that
* the device supports, not Unicode characters.
*/
/*-------------------------------------------------------------------------*/
/* USB_DT_INTERFACE: Interface descriptor */
struct usb_interface_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bInterfaceNumber;
__u8 bAlternateSetting;
__u8 bNumEndpoints;
__u8 bInterfaceClass;
__u8 bInterfaceSubClass;
__u8 bInterfaceProtocol;
__u8 iInterface;
} __attribute__ ((packed));
#define USB_DT_INTERFACE_SIZE 9
/*-------------------------------------------------------------------------*/
/* USB_DT_ENDPOINT: Endpoint descriptor */
struct usb_endpoint_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bEndpointAddress;
__u8 bmAttributes;
__le16 wMaxPacketSize;
__u8 bInterval;
/* NOTE: these two are _only_ in audio endpoints. */
/* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
__u8 bRefresh;
__u8 bSynchAddress;
} __attribute__ ((packed));
#define USB_DT_ENDPOINT_SIZE 7
#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
/*
* Endpoints
*/
#define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */
#define USB_ENDPOINT_DIR_MASK 0x80
#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */
#define USB_ENDPOINT_XFER_CONTROL 0
#define USB_ENDPOINT_XFER_ISOC 1
#define USB_ENDPOINT_XFER_BULK 2
#define USB_ENDPOINT_XFER_INT 3
#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80
/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
#define USB_ENDPOINT_INTRTYPE 0x30
#define USB_ENDPOINT_INTR_PERIODIC (0 << 4)
#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4)
#define USB_ENDPOINT_SYNCTYPE 0x0c
#define USB_ENDPOINT_SYNC_NONE (0 << 2)
#define USB_ENDPOINT_SYNC_ASYNC (1 << 2)
#define USB_ENDPOINT_SYNC_ADAPTIVE (2 << 2)
#define USB_ENDPOINT_SYNC_SYNC (3 << 2)
#define USB_ENDPOINT_USAGE_MASK 0x30
#define USB_ENDPOINT_USAGE_DATA 0x00
#define USB_ENDPOINT_USAGE_FEEDBACK 0x10
#define USB_ENDPOINT_USAGE_IMPLICIT_FB 0x20 /* Implicit feedback Data endpoint */
/*-------------------------------------------------------------------------*/
/**
* usb_endpoint_num - get the endpoint's number
* @epd: endpoint to be checked
*
* Returns @epd's number: 0 to 15.
*/
static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
{
return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
}
/**
* usb_endpoint_type - get the endpoint's transfer type
* @epd: endpoint to be checked
*
* Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
* to @epd's transfer type.
*/
static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
{
return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
}
/**
* usb_endpoint_dir_in - check if the endpoint has IN direction
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type IN, otherwise it returns false.
*/
static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
{
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
}
/**
* usb_endpoint_dir_out - check if the endpoint has OUT direction
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type OUT, otherwise it returns false.
*/
static inline int usb_endpoint_dir_out(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
}
/**
* usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type bulk, otherwise it returns false.
*/
static inline int usb_endpoint_xfer_bulk(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK);
}
/**
* usb_endpoint_xfer_control - check if the endpoint has control transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type control, otherwise it returns false.
*/
static inline int usb_endpoint_xfer_control(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_CONTROL);
}
/**
* usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type interrupt, otherwise it returns
* false.
*/
static inline int usb_endpoint_xfer_int(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_INT);
}
/**
* usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type isochronous, otherwise it returns
* false.
*/
static inline int usb_endpoint_xfer_isoc(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_ISOC);
}
/**
* usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
* @epd: endpoint to be checked
*
* Returns true if the endpoint has bulk transfer type and IN direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_bulk_in(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
}
/**
* usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
* @epd: endpoint to be checked
*
* Returns true if the endpoint has bulk transfer type and OUT direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_bulk_out(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
}
/**
* usb_endpoint_is_int_in - check if the endpoint is interrupt IN
* @epd: endpoint to be checked
*
* Returns true if the endpoint has interrupt transfer type and IN direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_int_in(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
}
/**
* usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
* @epd: endpoint to be checked
*
* Returns true if the endpoint has interrupt transfer type and OUT direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_int_out(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd);
}
/**
* usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
* @epd: endpoint to be checked
*
* Returns true if the endpoint has isochronous transfer type and IN direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_isoc_in(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd);
}
/**
* usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
* @epd: endpoint to be checked
*
* Returns true if the endpoint has isochronous transfer type and OUT direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_isoc_out(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
}
/**
* usb_endpoint_maxp - get endpoint's max packet size
* @epd: endpoint to be checked
*
* Returns @epd's max packet
*/
static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
{
return __le16_to_cpu(epd->wMaxPacketSize);
}
static inline int usb_endpoint_interrupt_type(
const struct usb_endpoint_descriptor *epd)
{
return epd->bmAttributes & USB_ENDPOINT_INTRTYPE;
}
/*-------------------------------------------------------------------------*/
/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
struct usb_ss_ep_comp_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bMaxBurst;
__u8 bmAttributes;
__le16 wBytesPerInterval;
} __attribute__ ((packed));
#define USB_DT_SS_EP_COMP_SIZE 6
/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
static inline int
usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
{
int max_streams;
if (!comp)
return 0;
max_streams = comp->bmAttributes & 0x1f;
if (!max_streams)
return 0;
max_streams = 1 << max_streams;
return max_streams;
}
/* Bits 1:0 of bmAttributes if this is an isoc endpoint */
#define USB_SS_MULT(p) (1 + ((p) & 0x3))
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
struct usb_qualifier_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 bcdUSB;
__u8 bDeviceClass;
__u8 bDeviceSubClass;
__u8 bDeviceProtocol;
__u8 bMaxPacketSize0;
__u8 bNumConfigurations;
__u8 bRESERVED;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_OTG (from OTG 1.0a supplement) */
struct usb_otg_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bmAttributes; /* support for HNP, SRP, etc */
} __attribute__ ((packed));
/* from usb_otg_descriptor.bmAttributes */
#define USB_OTG_SRP (1 << 0)
#define USB_OTG_HNP (1 << 1) /* swap host/device roles */
/*-------------------------------------------------------------------------*/
/* USB_DT_DEBUG: for special highspeed devices, replacing serial console */
struct usb_debug_descriptor {
__u8 bLength;
__u8 bDescriptorType;
/* bulk endpoints with 8 byte maxpacket */
__u8 bDebugInEndpoint;
__u8 bDebugOutEndpoint;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
struct usb_interface_assoc_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bFirstInterface;
__u8 bInterfaceCount;
__u8 bFunctionClass;
__u8 bFunctionSubClass;
__u8 bFunctionProtocol;
__u8 iFunction;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_SECURITY: group of wireless security descriptors, including
* encryption types available for setting up a CC/association.
*/
struct usb_security_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wTotalLength;
__u8 bNumEncryptionTypes;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_KEY: used with {GET,SET}_SECURITY_DATA; only public keys
* may be retrieved.
*/
struct usb_key_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 tTKID[3];
__u8 bReserved;
__u8 bKeyData[0];
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_ENCRYPTION_TYPE: bundled in DT_SECURITY groups */
struct usb_encryption_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bEncryptionType;
#define USB_ENC_TYPE_UNSECURE 0
#define USB_ENC_TYPE_WIRED 1 /* non-wireless mode */
#define USB_ENC_TYPE_CCM_1 2 /* aes128/cbc session */
#define USB_ENC_TYPE_RSA_1 3 /* rsa3072/sha1 auth */
__u8 bEncryptionValue; /* use in SET_ENCRYPTION */
__u8 bAuthKeyIndex;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_BOS: group of device-level capabilities */
struct usb_bos_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wTotalLength;
__u8 bNumDeviceCaps;
} __attribute__((packed));
#define USB_DT_BOS_SIZE 5
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE_CAPABILITY: grouped with BOS */
struct usb_dev_cap_header {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
} __attribute__((packed));
#define USB_CAP_TYPE_WIRELESS_USB 1
struct usb_wireless_cap_descriptor { /* Ultra Wide Band */
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__u8 bmAttributes;
#define USB_WIRELESS_P2P_DRD (1 << 1)
#define USB_WIRELESS_BEACON_MASK (3 << 2)
#define USB_WIRELESS_BEACON_SELF (1 << 2)
#define USB_WIRELESS_BEACON_DIRECTED (2 << 2)
#define USB_WIRELESS_BEACON_NONE (3 << 2)
__le16 wPHYRates; /* bit rates, Mbps */
#define USB_WIRELESS_PHY_53 (1 << 0) /* always set */
#define USB_WIRELESS_PHY_80 (1 << 1)
#define USB_WIRELESS_PHY_107 (1 << 2) /* always set */
#define USB_WIRELESS_PHY_160 (1 << 3)
#define USB_WIRELESS_PHY_200 (1 << 4) /* always set */
#define USB_WIRELESS_PHY_320 (1 << 5)
#define USB_WIRELESS_PHY_400 (1 << 6)
#define USB_WIRELESS_PHY_480 (1 << 7)
__u8 bmTFITXPowerInfo; /* TFI power levels */
__u8 bmFFITXPowerInfo; /* FFI power levels */
__le16 bmBandGroup;
__u8 bReserved;
} __attribute__((packed));
/* USB 2.0 Extension descriptor */
#define USB_CAP_TYPE_EXT 2
struct usb_ext_cap_descriptor { /* Link Power Management */
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__le32 bmAttributes;
#define USB_LPM_SUPPORT (1 << 1) /* supports LPM */
#define USB_BESL_SUPPORT (1 << 2) /* supports BESL */
#define USB_BESL_BASELINE_VALID (1 << 3) /* Baseline BESL valid*/
#define USB_BESL_DEEP_VALID (1 << 4) /* Deep BESL valid */
#define USB_GET_BESL_BASELINE(p) (((p) & (0xf << 8)) >> 8)
#define USB_GET_BESL_DEEP(p) (((p) & (0xf << 12)) >> 12)
} __attribute__((packed));
#define USB_DT_USB_EXT_CAP_SIZE 7
/*
* SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB
* specific device level capabilities
*/
#define USB_SS_CAP_TYPE 3
struct usb_ss_cap_descriptor { /* Link Power Management */
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__u8 bmAttributes;
#define USB_LTM_SUPPORT (1 << 1) /* supports LTM */
__le16 wSpeedSupported;
#define USB_LOW_SPEED_OPERATION (1) /* Low speed operation */
#define USB_FULL_SPEED_OPERATION (1 << 1) /* Full speed operation */
#define USB_HIGH_SPEED_OPERATION (1 << 2) /* High speed operation */
#define USB_5GBPS_OPERATION (1 << 3) /* Operation at 5Gbps */
__u8 bFunctionalitySupport;
__u8 bU1devExitLat;
__le16 bU2DevExitLat;
} __attribute__((packed));
#define USB_DT_USB_SS_CAP_SIZE 10
/*
* Container ID Capability descriptor: Defines the instance unique ID used to
* identify the instance across all operating modes
*/
#define CONTAINER_ID_TYPE 4
struct usb_ss_container_id_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__u8 bReserved;
__u8 ContainerID[16]; /* 128-bit number */
} __attribute__((packed));
#define USB_DT_USB_SS_CONTN_ID_SIZE 20
/*-------------------------------------------------------------------------*/
/* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with
* each endpoint descriptor for a wireless device
*/
struct usb_wireless_ep_comp_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bMaxBurst;
__u8 bMaxSequence;
__le16 wMaxStreamDelay;
__le16 wOverTheAirPacketSize;
__u8 bOverTheAirInterval;
__u8 bmCompAttributes;
#define USB_ENDPOINT_SWITCH_MASK 0x03 /* in bmCompAttributes */
#define USB_ENDPOINT_SWITCH_NO 0
#define USB_ENDPOINT_SWITCH_SWITCH 1
#define USB_ENDPOINT_SWITCH_SCALE 2
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
* host and a device for connection set up, mutual authentication, and
* exchanging short lived session keys. The handshake depends on a CC.
*/
struct usb_handshake {
__u8 bMessageNumber;
__u8 bStatus;
__u8 tTKID[3];
__u8 bReserved;
__u8 CDID[16];
__u8 nonce[16];
__u8 MIC[8];
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
* A CC may also be set up using non-wireless secure channels (including
* wired USB!), and some devices may support CCs with multiple hosts.
*/
struct usb_connection_context {
__u8 CHID[16]; /* persistent host id */
__u8 CDID[16]; /* device id (unique w/in host context) */
__u8 CK[16]; /* connection key */
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
#include <uapi/linux/usb/ch9.h>
/* USB 2.0 defines three speeds, here's how Linux identifies them */
enum usb_device_speed {
USB_SPEED_UNKNOWN = 0, /* enumerating */
USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
USB_SPEED_HIGH, /* usb 2.0 */
USB_SPEED_WIRELESS, /* wireless (usb 2.5) */
USB_SPEED_SUPER, /* usb 3.0 */
};
#ifdef __KERNEL__
/**
* usb_speed_string() - Returns human readable-name of the speed.
......@@ -919,86 +43,4 @@ enum usb_device_speed {
*/
extern const char *usb_speed_string(enum usb_device_speed speed);
#endif
enum usb_device_state {
/* NOTATTACHED isn't in the USB spec, and this state acts
* the same as ATTACHED ... but it's clearer this way.
*/
USB_STATE_NOTATTACHED = 0,
/* chapter 9 and authentication (wireless) device states */
USB_STATE_ATTACHED,
USB_STATE_POWERED, /* wired */
USB_STATE_RECONNECTING, /* auth */
USB_STATE_UNAUTHENTICATED, /* auth */
USB_STATE_DEFAULT, /* limited function */
USB_STATE_ADDRESS,
USB_STATE_CONFIGURED, /* most functions */
USB_STATE_SUSPENDED
/* NOTE: there are actually four different SUSPENDED
* states, returning to POWERED, DEFAULT, ADDRESS, or
* CONFIGURED respectively when SOF tokens flow again.
* At this level there's no difference between L1 and L2
* suspend states. (L2 being original USB 1.1 suspend.)
*/
};
enum usb3_link_state {
USB3_LPM_U0 = 0,
USB3_LPM_U1,
USB3_LPM_U2,
USB3_LPM_U3
};
/*
* A U1 timeout of 0x0 means the parent hub will reject any transitions to U1.
* 0xff means the parent hub will accept transitions to U1, but will not
* initiate a transition.
*
* A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to
* U1 after that many microseconds. Timeouts of 0x80 to 0xFE are reserved
* values.
*
* A U2 timeout of 0x0 means the parent hub will reject any transitions to U2.
* 0xff means the parent hub will accept transitions to U2, but will not
* initiate a transition.
*
* A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to
* U2 after N*256 microseconds. Therefore a U2 timeout value of 0x1 means a U2
* idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means
* 65.024ms.
*/
#define USB3_LPM_DISABLED 0x0
#define USB3_LPM_U1_MAX_TIMEOUT 0x7F
#define USB3_LPM_U2_MAX_TIMEOUT 0xFE
#define USB3_LPM_DEVICE_INITIATED 0xFF
struct usb_set_sel_req {
__u8 u1_sel;
__u8 u1_pel;
__le16 u2_sel;
__le16 u2_pel;
} __attribute__ ((packed));
/*
* The Set System Exit Latency control transfer provides one byte each for
* U1 SEL and U1 PEL, so the max exit latency is 0xFF. U2 SEL and U2 PEL each
* are two bytes long.
*/
#define USB3_LPM_MAX_U1_SEL_PEL 0xFF
#define USB3_LPM_MAX_U2_SEL_PEL 0xFFFF
/*-------------------------------------------------------------------------*/
/*
* As per USB compliance update, a device that is actively drawing
* more than 100mA from USB must report itself as bus-powered in
* the GetStatus(DEVICE) call.
* http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
*/
#define USB_SELF_POWER_VBUS_MAX_DRAW 100
#endif /* __LINUX_USB_CH9_H */
include/linux/usb/functionfs.h
View file @ d40ce170
#ifndef __LINUX_FUNCTIONFS_H__
#define __LINUX_FUNCTIONFS_H__ 1
#include <uapi/linux/usb/functionfs.h>
#include <linux/types.h>
#include <linux/ioctl.h>
#include <linux/usb/ch9.h>
enum {
FUNCTIONFS_DESCRIPTORS_MAGIC = 1,
FUNCTIONFS_STRINGS_MAGIC = 2
};
#ifndef __KERNEL__
/* Descriptor of an non-audio endpoint */
struct usb_endpoint_descriptor_no_audio {
__u8 bLength;
__u8 bDescriptorType;
__u8 bEndpointAddress;
__u8 bmAttributes;
__le16 wMaxPacketSize;
__u8 bInterval;
} __attribute__((packed));
/*
* All numbers must be in little endian order.
*/
struct usb_functionfs_descs_head {
__le32 magic;
__le32 length;
__le32 fs_count;
__le32 hs_count;
} __attribute__((packed));
/*
* Descriptors format:
*
* | off | name | type | description |
* |-----+-----------+--------------+--------------------------------------|
* | 0 | magic | LE32 | FUNCTIONFS_{FS,HS}_DESCRIPTORS_MAGIC |
* | 4 | length | LE32 | length of the whole data chunk |
* | 8 | fs_count | LE32 | number of full-speed descriptors |
* | 12 | hs_count | LE32 | number of high-speed descriptors |
* | 16 | fs_descrs | Descriptor[] | list of full-speed descriptors |
* | | hs_descrs | Descriptor[] | list of high-speed descriptors |
*
* descs are just valid USB descriptors and have the following format:
*
* | off | name | type | description |
* |-----+-----------------+------+--------------------------|
* | 0 | bLength | U8 | length of the descriptor |
* | 1 | bDescriptorType | U8 | descriptor type |
* | 2 | payload | | descriptor's payload |
*/
struct usb_functionfs_strings_head {
__le32 magic;
__le32 length;
__le32 str_count;
__le32 lang_count;
} __attribute__((packed));
/*
* Strings format:
*
* | off | name | type | description |
* |-----+------------+-----------------------+----------------------------|
* | 0 | magic | LE32 | FUNCTIONFS_STRINGS_MAGIC |
* | 4 | length | LE32 | length of the data chunk |
* | 8 | str_count | LE32 | number of strings |
* | 12 | lang_count | LE32 | number of languages |
* | 16 | stringtab | StringTab[lang_count] | table of strings per lang |
*
* For each language there is one stringtab entry (ie. there are lang_count
* stringtab entires). Each StringTab has following format:
*
* | off | name | type | description |
* |-----+---------+-------------------+------------------------------------|
* | 0 | lang | LE16 | language code |
* | 2 | strings | String[str_count] | array of strings in given language |
*
* For each string there is one strings entry (ie. there are str_count
* string entries). Each String is a NUL terminated string encoded in
* UTF-8.
*/
#endif
/*
* Events are delivered on the ep0 file descriptor, when the user mode driver
* reads from this file descriptor after writing the descriptors. Don't
* stop polling this descriptor.
*/
enum usb_functionfs_event_type {
FUNCTIONFS_BIND,
FUNCTIONFS_UNBIND,
FUNCTIONFS_ENABLE,
FUNCTIONFS_DISABLE,
FUNCTIONFS_SETUP,
FUNCTIONFS_SUSPEND,
FUNCTIONFS_RESUME
};
/* NOTE: this structure must stay the same size and layout on
* both 32-bit and 64-bit kernels.
*/
struct usb_functionfs_event {
union {
/* SETUP: packet; DATA phase i/o precedes next event
*(setup.bmRequestType & USB_DIR_IN) flags direction */
struct usb_ctrlrequest setup;
} __attribute__((packed)) u;
/* enum usb_functionfs_event_type */
__u8 type;
__u8 _pad[3];
} __attribute__((packed));
/* Endpoint ioctls */
/* The same as in gadgetfs */
/* IN transfers may be reported to the gadget driver as complete
* when the fifo is loaded, before the host reads the data;
* OUT transfers may be reported to the host's "client" driver as
* complete when they're sitting in the FIFO unread.
* THIS returns how many bytes are "unclaimed" in the endpoint fifo
* (needed for precise fault handling, when the hardware allows it)
*/
#define FUNCTIONFS_FIFO_STATUS _IO('g', 1)
/* discards any unclaimed data in the fifo. */
#define FUNCTIONFS_FIFO_FLUSH _IO('g', 2)
/* resets endpoint halt+toggle; used to implement set_interface.
* some hardware (like pxa2xx) can't support this.
*/
#define FUNCTIONFS_CLEAR_HALT _IO('g', 3)
/* Specific for functionfs */
/*
* Returns reverse mapping of an interface. Called on EP0. If there
* is no such interface returns -EDOM. If function is not active
* returns -ENODEV.
*/
#define FUNCTIONFS_INTERFACE_REVMAP _IO('g', 128)
/*
* Returns real bEndpointAddress of an endpoint. If function is not
* active returns -ENODEV.
*/
#define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
#ifdef __KERNEL__
struct ffs_data;
struct usb_composite_dev;
......@@ -197,5 +34,3 @@ static void functionfs_release_dev_callback(struct ffs_data *ffs_data)
#endif
#endif
include/uapi/linux/usb/Kbuild
View file @ d40ce170
# UAPI Header export list
header-y += audio.h
header-y += cdc.h
header-y += ch11.h
header-y += ch9.h
header-y += functionfs.h
header-y += g_printer.h
header-y += gadgetfs.h
header-y += midi.h
header-y += tmc.h
header-y += video.h
include/uapi/linux/usb/audio.h 0 → 100644
View file @ d40ce170
/*
* <linux/usb/audio.h> -- USB Audio definitions.
*
* Copyright (C) 2006 Thumtronics Pty Ltd.
* Developed for Thumtronics by Grey Innovation
* Ben Williamson <ben.williamson@greyinnovation.com>
*
* This software is distributed under the terms of the GNU General Public
* License ("GPL") version 2, as published by the Free Software Foundation.
*
* This file holds USB constants and structures defined
* by the USB Device Class Definition for Audio Devices.
* 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 _UAPI__LINUX_USB_AUDIO_H
#define _UAPI__LINUX_USB_AUDIO_H
#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
/* 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 UAC1_PROCESSING_UNIT 0x07
#define UAC1_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.7 Processing Unit Process Types */
#define UAC_PROCESS_UNDEFINED 0x00
#define UAC_PROCESS_UP_DOWNMIX 0x01
#define UAC_PROCESS_DOLBY_PROLOGIC 0x02
#define UAC_PROCESS_STEREO_EXTENDER 0x03
#define UAC_PROCESS_REVERB 0x04
#define UAC_PROCESS_CHORUS 0x05
#define UAC_PROCESS_DYN_RANGE_COMP 0x06
/* 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
/* A.10 Control Selector Codes */
/* A.10.1 Terminal Control Selectors */
#define UAC_TERM_COPY_PROTECT 0x01
/* A.10.2 Feature Unit Control Selectors */
#define UAC_FU_MUTE 0x01
#define UAC_FU_VOLUME 0x02
#define UAC_FU_BASS 0x03
#define UAC_FU_MID 0x04
#define UAC_FU_TREBLE 0x05
#define UAC_FU_GRAPHIC_EQUALIZER 0x06
#define UAC_FU_AUTOMATIC_GAIN 0x07
#define UAC_FU_DELAY 0x08
#define UAC_FU_BASS_BOOST 0x09
#define UAC_FU_LOUDNESS 0x0a
#define UAC_CONTROL_BIT(CS) (1 << ((CS) - 1))
/* A.10.3.1 Up/Down-mix Processing Unit Controls Selectors */
#define UAC_UD_ENABLE 0x01
#define UAC_UD_MODE_SELECT 0x02
/* A.10.3.2 Dolby Prologic (tm) Processing Unit Controls Selectors */
#define UAC_DP_ENABLE 0x01
#define UAC_DP_MODE_SELECT 0x02
/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
#define UAC_3D_ENABLE 0x01
#define UAC_3D_SPACE 0x02
/* A.10.3.4 Reverberation Processing Unit Control Selectors */
#define UAC_REVERB_ENABLE 0x01
#define UAC_REVERB_LEVEL 0x02
#define UAC_REVERB_TIME 0x03
#define UAC_REVERB_FEEDBACK 0x04
/* A.10.3.5 Chorus Processing Unit Control Selectors */
#define UAC_CHORUS_ENABLE 0x01
#define UAC_CHORUS_LEVEL 0x02
#define UAC_CHORUS_RATE 0x03
#define UAC_CHORUS_DEPTH 0x04
/* A.10.3.6 Dynamic Range Compressor Unit Control Selectors */
#define UAC_DCR_ENABLE 0x01
#define UAC_DCR_RATE 0x02
#define UAC_DCR_MAXAMPL 0x03
#define UAC_DCR_THRESHOLD 0x04
#define UAC_DCR_ATTACK_TIME 0x05
#define UAC_DCR_RELEASE_TIME 0x06
/* A.10.4 Extension Unit Control Selectors */
#define UAC_XU_ENABLE 0x01
/* 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 uac1_ac_header_descriptor {
__u8 bLength; /* 8 + n */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* UAC_MS_HEADER */
__le16 bcdADC; /* 0x0100 */
__le16 wTotalLength; /* includes Unit and Terminal desc. */
__u8 bInCollection; /* n */
__u8 baInterfaceNr[]; /* [n] */
} __attribute__ ((packed));
#define UAC_DT_AC_HEADER_SIZE(n) (8 + (n))
/* As above, but more useful for defining your own descriptors: */
#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n) \
struct uac1_ac_header_descriptor_##n { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
__le16 bcdADC; \
__le16 wTotalLength; \
__u8 bInCollection; \
__u8 baInterfaceNr[n]; \
} __attribute__ ((packed))
/* 4.3.2.1 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 */
__u8 bTerminalID; /* Constant uniquely terminal ID */
__le16 wTerminalType; /* USB Audio Terminal Types */
__u8 bAssocTerminal; /* ID of the Output Terminal associated */
__u8 bNrChannels; /* Number of logical output channels */
__le16 wChannelConfig;
__u8 iChannelNames;
__u8 iTerminal;
} __attribute__ ((packed));
#define UAC_DT_INPUT_TERMINAL_SIZE 12
/* 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
/* Terminals - control selectors */
#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL 0x01
/* 4.3.2.2 Output Terminal Descriptor */
struct uac1_output_terminal_descriptor {
__u8 bLength; /* in bytes: 9 */
__u8 bDescriptorType; /* CS_INTERFACE descriptor type */
__u8 bDescriptorSubtype; /* OUTPUT_TERMINAL descriptor subtype */
__u8 bTerminalID; /* Constant uniquely terminal ID */
__le16 wTerminalType; /* USB Audio Terminal Types */
__u8 bAssocTerminal; /* ID of the Input Terminal associated */
__u8 bSourceID; /* ID of the connected Unit or Terminal*/
__u8 iTerminal;
} __attribute__ ((packed));
#define UAC_DT_OUTPUT_TERMINAL_SIZE 9
/* 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 UAC_DT_FEATURE_UNIT_SIZE(ch) (7 + ((ch) + 1) * 2)
/* As above, but more useful for defining your own descriptors: */
#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch) \
struct uac_feature_unit_descriptor_##ch { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
__u8 bUnitID; \
__u8 bSourceID; \
__u8 bControlSize; \
__le16 bmaControls[ch + 1]; \
__u8 iFeature; \
} __attribute__ ((packed))
/* 4.3.2.3 Mixer Unit Descriptor */
struct uac_mixer_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc)
{
return desc->baSourceID[desc->bNrInPins];
}
static inline __u32 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc,
int protocol)
{
if (protocol == UAC_VERSION_1)
return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
desc->baSourceID[desc->bNrInPins + 1];
else
return (desc->baSourceID[desc->bNrInPins + 4] << 24) |
(desc->baSourceID[desc->bNrInPins + 3] << 16) |
(desc->baSourceID[desc->bNrInPins + 2] << 8) |
(desc->baSourceID[desc->bNrInPins + 1]);
}
static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
desc->baSourceID[desc->bNrInPins + 3] :
desc->baSourceID[desc->bNrInPins + 5];
}
static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
&desc->baSourceID[desc->bNrInPins + 4] :
&desc->baSourceID[desc->bNrInPins + 6];
}
static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
}
/* 4.3.2.4 Selector Unit Descriptor */
struct uac_selector_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUintID;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
}
/* 4.3.2.5 Feature Unit Descriptor */
struct uac_feature_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
__u8 bSourceID;
__u8 bControlSize;
__u8 bmaControls[0]; /* variable length */
} __attribute__((packed));
static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
}
/* 4.3.2.6 Processing Unit Descriptors */
struct uac_processing_unit_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
__u16 wProcessType;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc)
{
return desc->baSourceID[desc->bNrInPins];
}
static inline __u32 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc,
int protocol)
{
if (protocol == UAC_VERSION_1)
return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
desc->baSourceID[desc->bNrInPins + 1];
else
return (desc->baSourceID[desc->bNrInPins + 4] << 24) |
(desc->baSourceID[desc->bNrInPins + 3] << 16) |
(desc->baSourceID[desc->bNrInPins + 2] << 8) |
(desc->baSourceID[desc->bNrInPins + 1]);
}
static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
desc->baSourceID[desc->bNrInPins + 3] :
desc->baSourceID[desc->bNrInPins + 5];
}
static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
desc->baSourceID[desc->bNrInPins + 4] :
desc->baSourceID[desc->bNrInPins + 6];
}
static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
int protocol)
{
return (protocol == UAC_VERSION_1) ?
&desc->baSourceID[desc->bNrInPins + 5] :
&desc->baSourceID[desc->bNrInPins + 7];
}
static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
int protocol)
{
__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
return desc->baSourceID[desc->bNrInPins + control_size];
}
static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc,
int protocol)
{
__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
return &desc->baSourceID[desc->bNrInPins + control_size + 1];
}
/* 4.5.2 Class-Specific AS Interface Descriptor */
struct uac1_as_header_descriptor {
__u8 bLength; /* in bytes: 7 */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* AS_GENERAL */
__u8 bTerminalLink; /* Terminal ID of connected Terminal */
__u8 bDelay; /* Delay introduced by the data path */
__le16 wFormatTag; /* The Audio Data Format */
} __attribute__ ((packed));
#define UAC_DT_AS_HEADER_SIZE 7
/* 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 uac_format_type_i_continuous_descriptor {
__u8 bLength; /* in bytes: 8 + (ns * 3) */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* FORMAT_TYPE */
__u8 bFormatType; /* FORMAT_TYPE_1 */
__u8 bNrChannels; /* physical channels in the stream */
__u8 bSubframeSize; /* */
__u8 bBitResolution;
__u8 bSamFreqType;
__u8 tLowerSamFreq[3];
__u8 tUpperSamFreq[3];
} __attribute__ ((packed));
#define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE 14
struct uac_format_type_i_discrete_descriptor {
__u8 bLength; /* in bytes: 8 + (ns * 3) */
__u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
__u8 bDescriptorSubtype; /* FORMAT_TYPE */
__u8 bFormatType; /* FORMAT_TYPE_1 */
__u8 bNrChannels; /* physical channels in the stream */
__u8 bSubframeSize; /* */
__u8 bBitResolution;
__u8 bSamFreqType;
__u8 tSamFreq[][3];
} __attribute__ ((packed));
#define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n) \
struct uac_format_type_i_discrete_descriptor_##n { \
__u8 bLength; \
__u8 bDescriptorType; \
__u8 bDescriptorSubtype; \
__u8 bFormatType; \
__u8 bNrChannels; \
__u8 bSubframeSize; \
__u8 bBitResolution; \
__u8 bSamFreqType; \
__u8 tSamFreq[n][3]; \
} __attribute__ ((packed))
#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 bFormatType;
__u8 bSubslotSize;
__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 */
__u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */
__u8 bDescriptorSubtype; /* EP_GENERAL */
__u8 bmAttributes;
__u8 bLockDelayUnits;
__le16 wLockDelay;
} __attribute__((packed));
#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
/* status word format (3.7.1.1) */
#define UAC1_STATUS_TYPE_ORIG_MASK 0x0f
#define UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF 0x0
#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_IF 0x1
#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_EP 0x2
#define UAC1_STATUS_TYPE_IRQ_PENDING (1 << 7)
#define UAC1_STATUS_TYPE_MEM_CHANGED (1 << 6)
struct uac1_status_word {
__u8 bStatusType;
__u8 bOriginator;
} __attribute__((packed));
#endif /* _UAPI__LINUX_USB_AUDIO_H */
include/uapi/linux/usb/ch9.h 0 → 100644
View file @ d40ce170
/*
* This file holds USB constants and structures that are needed for
* USB device APIs. These are used by the USB device model, which is
* defined in chapter 9 of the USB 2.0 specification and in the
* Wireless USB 1.0 (spread around). Linux has several APIs in C that
* need these:
*
* - the master/host side Linux-USB kernel driver API;
* - the "usbfs" user space API; and
* - the Linux "gadget" slave/device/peripheral side driver API.
*
* USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems
* act either as a USB master/host or as a USB slave/device. That means
* the master and slave side APIs benefit from working well together.
*
* There's also "Wireless USB", using low power short range radios for
* peripheral interconnection but otherwise building on the USB framework.
*
* Note all descriptors are declared '__attribute__((packed))' so that:
*
* [a] they never get padded, either internally (USB spec writers
* probably handled that) or externally;
*
* [b] so that accessing bigger-than-a-bytes fields will never
* generate bus errors on any platform, even when the location of
* its descriptor inside a bundle isn't "naturally aligned", and
*
* [c] for consistency, removing all doubt even when it appears to
* someone that the two other points are non-issues for that
* particular descriptor type.
*/
#ifndef _UAPI__LINUX_USB_CH9_H
#define _UAPI__LINUX_USB_CH9_H
#include <linux/types.h> /* __u8 etc */
#include <asm/byteorder.h> /* le16_to_cpu */
/*-------------------------------------------------------------------------*/
/* CONTROL REQUEST SUPPORT */
/*
* USB directions
*
* This bit flag is used in endpoint descriptors' bEndpointAddress field.
* It's also one of three fields in control requests bRequestType.
*/
#define USB_DIR_OUT 0 /* to device */
#define USB_DIR_IN 0x80 /* to host */
/*
* USB types, the second of three bRequestType fields
*/
#define USB_TYPE_MASK (0x03 << 5)
#define USB_TYPE_STANDARD (0x00 << 5)
#define USB_TYPE_CLASS (0x01 << 5)
#define USB_TYPE_VENDOR (0x02 << 5)
#define USB_TYPE_RESERVED (0x03 << 5)
/*
* USB recipients, the third of three bRequestType fields
*/
#define USB_RECIP_MASK 0x1f
#define USB_RECIP_DEVICE 0x00
#define USB_RECIP_INTERFACE 0x01
#define USB_RECIP_ENDPOINT 0x02
#define USB_RECIP_OTHER 0x03
/* From Wireless USB 1.0 */
#define USB_RECIP_PORT 0x04
#define USB_RECIP_RPIPE 0x05
/*
* Standard requests, for the bRequest field of a SETUP packet.
*
* These are qualified by the bRequestType field, so that for example
* TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
* by a GET_STATUS request.
*/
#define USB_REQ_GET_STATUS 0x00
#define USB_REQ_CLEAR_FEATURE 0x01
#define USB_REQ_SET_FEATURE 0x03
#define USB_REQ_SET_ADDRESS 0x05
#define USB_REQ_GET_DESCRIPTOR 0x06
#define USB_REQ_SET_DESCRIPTOR 0x07
#define USB_REQ_GET_CONFIGURATION 0x08
#define USB_REQ_SET_CONFIGURATION 0x09
#define USB_REQ_GET_INTERFACE 0x0A
#define USB_REQ_SET_INTERFACE 0x0B
#define USB_REQ_SYNCH_FRAME 0x0C
#define USB_REQ_SET_SEL 0x30
#define USB_REQ_SET_ISOCH_DELAY 0x31
#define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */
#define USB_REQ_GET_ENCRYPTION 0x0E
#define USB_REQ_RPIPE_ABORT 0x0E
#define USB_REQ_SET_HANDSHAKE 0x0F
#define USB_REQ_RPIPE_RESET 0x0F
#define USB_REQ_GET_HANDSHAKE 0x10
#define USB_REQ_SET_CONNECTION 0x11
#define USB_REQ_SET_SECURITY_DATA 0x12
#define USB_REQ_GET_SECURITY_DATA 0x13
#define USB_REQ_SET_WUSB_DATA 0x14
#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
#define USB_REQ_LOOPBACK_DATA_READ 0x16
#define USB_REQ_SET_INTERFACE_DS 0x17
/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
* used by hubs to put ports into a new L1 suspend state, except that it
* forgot to define its number ...
*/
/*
* USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
* are read as a bit array returned by USB_REQ_GET_STATUS. (So there
* are at most sixteen features of each type.) Hubs may also support a
* new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend.
*/
#define USB_DEVICE_SELF_POWERED 0 /* (read only) */
#define USB_DEVICE_REMOTE_WAKEUP 1 /* dev may initiate wakeup */
#define USB_DEVICE_TEST_MODE 2 /* (wired high speed only) */
#define USB_DEVICE_BATTERY 2 /* (wireless) */
#define USB_DEVICE_B_HNP_ENABLE 3 /* (otg) dev may initiate HNP */
#define USB_DEVICE_WUSB_DEVICE 3 /* (wireless)*/
#define USB_DEVICE_A_HNP_SUPPORT 4 /* (otg) RH port supports HNP */
#define USB_DEVICE_A_ALT_HNP_SUPPORT 5 /* (otg) other RH port does */
#define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */
/*
* Test Mode Selectors
* See USB 2.0 spec Table 9-7
*/
#define TEST_J 1
#define TEST_K 2
#define TEST_SE0_NAK 3
#define TEST_PACKET 4
#define TEST_FORCE_EN 5
/*
* New Feature Selectors as added by USB 3.0
* See USB 3.0 spec Table 9-6
*/
#define USB_DEVICE_U1_ENABLE 48 /* dev may initiate U1 transition */
#define USB_DEVICE_U2_ENABLE 49 /* dev may initiate U2 transition */
#define USB_DEVICE_LTM_ENABLE 50 /* dev may send LTM */
#define USB_INTRF_FUNC_SUSPEND 0 /* function suspend */
#define USB_INTR_FUNC_SUSPEND_OPT_MASK 0xFF00
/*
* Suspend Options, Table 9-7 USB 3.0 spec
*/
#define USB_INTRF_FUNC_SUSPEND_LP (1 << (8 + 0))
#define USB_INTRF_FUNC_SUSPEND_RW (1 << (8 + 1))
#define USB_ENDPOINT_HALT 0 /* IN/OUT will STALL */
/* Bit array elements as returned by the USB_REQ_GET_STATUS request. */
#define USB_DEV_STAT_U1_ENABLED 2 /* transition into U1 state */
#define USB_DEV_STAT_U2_ENABLED 3 /* transition into U2 state */
#define USB_DEV_STAT_LTM_ENABLED 4 /* Latency tolerance messages */
/**
* struct usb_ctrlrequest - SETUP data for a USB device control request
* @bRequestType: matches the USB bmRequestType field
* @bRequest: matches the USB bRequest field
* @wValue: matches the USB wValue field (le16 byte order)
* @wIndex: matches the USB wIndex field (le16 byte order)
* @wLength: matches the USB wLength field (le16 byte order)
*
* This structure is used to send control requests to a USB device. It matches
* the different fields of the USB 2.0 Spec section 9.3, table 9-2. See the
* USB spec for a fuller description of the different fields, and what they are
* used for.
*
* Note that the driver for any interface can issue control requests.
* For most devices, interfaces don't coordinate with each other, so
* such requests may be made at any time.
*/
struct usb_ctrlrequest {
__u8 bRequestType;
__u8 bRequest;
__le16 wValue;
__le16 wIndex;
__le16 wLength;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/*
* STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
* (rarely) accepted by SET_DESCRIPTOR.
*
* Note that all multi-byte values here are encoded in little endian
* byte order "on the wire". Within the kernel and when exposed
* through the Linux-USB APIs, they are not converted to cpu byte
* order; it is the responsibility of the client code to do this.
* The single exception is when device and configuration descriptors (but
* not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
* in this case the fields are converted to host endianness by the kernel.
*/
/*
* Descriptor types ... USB 2.0 spec table 9.5
*/
#define USB_DT_DEVICE 0x01
#define USB_DT_CONFIG 0x02
#define USB_DT_STRING 0x03
#define USB_DT_INTERFACE 0x04
#define USB_DT_ENDPOINT 0x05
#define USB_DT_DEVICE_QUALIFIER 0x06
#define USB_DT_OTHER_SPEED_CONFIG 0x07
#define USB_DT_INTERFACE_POWER 0x08
/* these are from a minor usb 2.0 revision (ECN) */
#define USB_DT_OTG 0x09
#define USB_DT_DEBUG 0x0a
#define USB_DT_INTERFACE_ASSOCIATION 0x0b
/* these are from the Wireless USB spec */
#define USB_DT_SECURITY 0x0c
#define USB_DT_KEY 0x0d
#define USB_DT_ENCRYPTION_TYPE 0x0e
#define USB_DT_BOS 0x0f
#define USB_DT_DEVICE_CAPABILITY 0x10
#define USB_DT_WIRELESS_ENDPOINT_COMP 0x11
#define USB_DT_WIRE_ADAPTER 0x21
#define USB_DT_RPIPE 0x22
#define USB_DT_CS_RADIO_CONTROL 0x23
/* From the T10 UAS specification */
#define USB_DT_PIPE_USAGE 0x24
/* From the USB 3.0 spec */
#define USB_DT_SS_ENDPOINT_COMP 0x30
/* Conventional codes for class-specific descriptors. The convention is
* defined in the USB "Common Class" Spec (3.11). Individual class specs
* are authoritative for their usage, not the "common class" writeup.
*/
#define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE)
#define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG)
#define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING)
#define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE)
#define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT)
/* All standard descriptors have these 2 fields at the beginning */
struct usb_descriptor_header {
__u8 bLength;
__u8 bDescriptorType;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE: Device descriptor */
struct usb_device_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 bcdUSB;
__u8 bDeviceClass;
__u8 bDeviceSubClass;
__u8 bDeviceProtocol;
__u8 bMaxPacketSize0;
__le16 idVendor;
__le16 idProduct;
__le16 bcdDevice;
__u8 iManufacturer;
__u8 iProduct;
__u8 iSerialNumber;
__u8 bNumConfigurations;
} __attribute__ ((packed));
#define USB_DT_DEVICE_SIZE 18
/*
* Device and/or Interface Class codes
* as found in bDeviceClass or bInterfaceClass
* and defined by www.usb.org documents
*/
#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
#define USB_CLASS_AUDIO 1
#define USB_CLASS_COMM 2
#define USB_CLASS_HID 3
#define USB_CLASS_PHYSICAL 5
#define USB_CLASS_STILL_IMAGE 6
#define USB_CLASS_PRINTER 7
#define USB_CLASS_MASS_STORAGE 8
#define USB_CLASS_HUB 9
#define USB_CLASS_CDC_DATA 0x0a
#define USB_CLASS_CSCID 0x0b /* chip+ smart card */
#define USB_CLASS_CONTENT_SEC 0x0d /* content security */
#define USB_CLASS_VIDEO 0x0e
#define USB_CLASS_WIRELESS_CONTROLLER 0xe0
#define USB_CLASS_MISC 0xef
#define USB_CLASS_APP_SPEC 0xfe
#define USB_CLASS_VENDOR_SPEC 0xff
#define USB_SUBCLASS_VENDOR_SPEC 0xff
/*-------------------------------------------------------------------------*/
/* USB_DT_CONFIG: Configuration descriptor information.
*
* USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
* descriptor type is different. Highspeed-capable devices can look
* different depending on what speed they're currently running. Only
* devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
* descriptors.
*/
struct usb_config_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wTotalLength;
__u8 bNumInterfaces;
__u8 bConfigurationValue;
__u8 iConfiguration;
__u8 bmAttributes;
__u8 bMaxPower;
} __attribute__ ((packed));
#define USB_DT_CONFIG_SIZE 9
/* from config descriptor bmAttributes */
#define USB_CONFIG_ATT_ONE (1 << 7) /* must be set */
#define USB_CONFIG_ATT_SELFPOWER (1 << 6) /* self powered */
#define USB_CONFIG_ATT_WAKEUP (1 << 5) /* can wakeup */
#define USB_CONFIG_ATT_BATTERY (1 << 4) /* battery powered */
/*-------------------------------------------------------------------------*/
/* USB_DT_STRING: String descriptor */
struct usb_string_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wData[1]; /* UTF-16LE encoded */
} __attribute__ ((packed));
/* note that "string" zero is special, it holds language codes that
* the device supports, not Unicode characters.
*/
/*-------------------------------------------------------------------------*/
/* USB_DT_INTERFACE: Interface descriptor */
struct usb_interface_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bInterfaceNumber;
__u8 bAlternateSetting;
__u8 bNumEndpoints;
__u8 bInterfaceClass;
__u8 bInterfaceSubClass;
__u8 bInterfaceProtocol;
__u8 iInterface;
} __attribute__ ((packed));
#define USB_DT_INTERFACE_SIZE 9
/*-------------------------------------------------------------------------*/
/* USB_DT_ENDPOINT: Endpoint descriptor */
struct usb_endpoint_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bEndpointAddress;
__u8 bmAttributes;
__le16 wMaxPacketSize;
__u8 bInterval;
/* NOTE: these two are _only_ in audio endpoints. */
/* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
__u8 bRefresh;
__u8 bSynchAddress;
} __attribute__ ((packed));
#define USB_DT_ENDPOINT_SIZE 7
#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
/*
* Endpoints
*/
#define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */
#define USB_ENDPOINT_DIR_MASK 0x80
#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */
#define USB_ENDPOINT_XFER_CONTROL 0
#define USB_ENDPOINT_XFER_ISOC 1
#define USB_ENDPOINT_XFER_BULK 2
#define USB_ENDPOINT_XFER_INT 3
#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80
/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
#define USB_ENDPOINT_INTRTYPE 0x30
#define USB_ENDPOINT_INTR_PERIODIC (0 << 4)
#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4)
#define USB_ENDPOINT_SYNCTYPE 0x0c
#define USB_ENDPOINT_SYNC_NONE (0 << 2)
#define USB_ENDPOINT_SYNC_ASYNC (1 << 2)
#define USB_ENDPOINT_SYNC_ADAPTIVE (2 << 2)
#define USB_ENDPOINT_SYNC_SYNC (3 << 2)
#define USB_ENDPOINT_USAGE_MASK 0x30
#define USB_ENDPOINT_USAGE_DATA 0x00
#define USB_ENDPOINT_USAGE_FEEDBACK 0x10
#define USB_ENDPOINT_USAGE_IMPLICIT_FB 0x20 /* Implicit feedback Data endpoint */
/*-------------------------------------------------------------------------*/
/**
* usb_endpoint_num - get the endpoint's number
* @epd: endpoint to be checked
*
* Returns @epd's number: 0 to 15.
*/
static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
{
return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
}
/**
* usb_endpoint_type - get the endpoint's transfer type
* @epd: endpoint to be checked
*
* Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
* to @epd's transfer type.
*/
static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
{
return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
}
/**
* usb_endpoint_dir_in - check if the endpoint has IN direction
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type IN, otherwise it returns false.
*/
static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
{
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
}
/**
* usb_endpoint_dir_out - check if the endpoint has OUT direction
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type OUT, otherwise it returns false.
*/
static inline int usb_endpoint_dir_out(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
}
/**
* usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type bulk, otherwise it returns false.
*/
static inline int usb_endpoint_xfer_bulk(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK);
}
/**
* usb_endpoint_xfer_control - check if the endpoint has control transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type control, otherwise it returns false.
*/
static inline int usb_endpoint_xfer_control(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_CONTROL);
}
/**
* usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type interrupt, otherwise it returns
* false.
*/
static inline int usb_endpoint_xfer_int(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_INT);
}
/**
* usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
* @epd: endpoint to be checked
*
* Returns true if the endpoint is of type isochronous, otherwise it returns
* false.
*/
static inline int usb_endpoint_xfer_isoc(
const struct usb_endpoint_descriptor *epd)
{
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_ISOC);
}
/**
* usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
* @epd: endpoint to be checked
*
* Returns true if the endpoint has bulk transfer type and IN direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_bulk_in(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
}
/**
* usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
* @epd: endpoint to be checked
*
* Returns true if the endpoint has bulk transfer type and OUT direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_bulk_out(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
}
/**
* usb_endpoint_is_int_in - check if the endpoint is interrupt IN
* @epd: endpoint to be checked
*
* Returns true if the endpoint has interrupt transfer type and IN direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_int_in(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
}
/**
* usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
* @epd: endpoint to be checked
*
* Returns true if the endpoint has interrupt transfer type and OUT direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_int_out(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd);
}
/**
* usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
* @epd: endpoint to be checked
*
* Returns true if the endpoint has isochronous transfer type and IN direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_isoc_in(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd);
}
/**
* usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
* @epd: endpoint to be checked
*
* Returns true if the endpoint has isochronous transfer type and OUT direction,
* otherwise it returns false.
*/
static inline int usb_endpoint_is_isoc_out(
const struct usb_endpoint_descriptor *epd)
{
return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
}
/**
* usb_endpoint_maxp - get endpoint's max packet size
* @epd: endpoint to be checked
*
* Returns @epd's max packet
*/
static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
{
return __le16_to_cpu(epd->wMaxPacketSize);
}
static inline int usb_endpoint_interrupt_type(
const struct usb_endpoint_descriptor *epd)
{
return epd->bmAttributes & USB_ENDPOINT_INTRTYPE;
}
/*-------------------------------------------------------------------------*/
/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
struct usb_ss_ep_comp_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bMaxBurst;
__u8 bmAttributes;
__le16 wBytesPerInterval;
} __attribute__ ((packed));
#define USB_DT_SS_EP_COMP_SIZE 6
/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
static inline int
usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
{
int max_streams;
if (!comp)
return 0;
max_streams = comp->bmAttributes & 0x1f;
if (!max_streams)
return 0;
max_streams = 1 << max_streams;
return max_streams;
}
/* Bits 1:0 of bmAttributes if this is an isoc endpoint */
#define USB_SS_MULT(p) (1 + ((p) & 0x3))
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
struct usb_qualifier_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 bcdUSB;
__u8 bDeviceClass;
__u8 bDeviceSubClass;
__u8 bDeviceProtocol;
__u8 bMaxPacketSize0;
__u8 bNumConfigurations;
__u8 bRESERVED;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_OTG (from OTG 1.0a supplement) */
struct usb_otg_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bmAttributes; /* support for HNP, SRP, etc */
} __attribute__ ((packed));
/* from usb_otg_descriptor.bmAttributes */
#define USB_OTG_SRP (1 << 0)
#define USB_OTG_HNP (1 << 1) /* swap host/device roles */
/*-------------------------------------------------------------------------*/
/* USB_DT_DEBUG: for special highspeed devices, replacing serial console */
struct usb_debug_descriptor {
__u8 bLength;
__u8 bDescriptorType;
/* bulk endpoints with 8 byte maxpacket */
__u8 bDebugInEndpoint;
__u8 bDebugOutEndpoint;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
struct usb_interface_assoc_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bFirstInterface;
__u8 bInterfaceCount;
__u8 bFunctionClass;
__u8 bFunctionSubClass;
__u8 bFunctionProtocol;
__u8 iFunction;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_SECURITY: group of wireless security descriptors, including
* encryption types available for setting up a CC/association.
*/
struct usb_security_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wTotalLength;
__u8 bNumEncryptionTypes;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_KEY: used with {GET,SET}_SECURITY_DATA; only public keys
* may be retrieved.
*/
struct usb_key_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 tTKID[3];
__u8 bReserved;
__u8 bKeyData[0];
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_ENCRYPTION_TYPE: bundled in DT_SECURITY groups */
struct usb_encryption_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bEncryptionType;
#define USB_ENC_TYPE_UNSECURE 0
#define USB_ENC_TYPE_WIRED 1 /* non-wireless mode */
#define USB_ENC_TYPE_CCM_1 2 /* aes128/cbc session */
#define USB_ENC_TYPE_RSA_1 3 /* rsa3072/sha1 auth */
__u8 bEncryptionValue; /* use in SET_ENCRYPTION */
__u8 bAuthKeyIndex;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_BOS: group of device-level capabilities */
struct usb_bos_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 wTotalLength;
__u8 bNumDeviceCaps;
} __attribute__((packed));
#define USB_DT_BOS_SIZE 5
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE_CAPABILITY: grouped with BOS */
struct usb_dev_cap_header {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
} __attribute__((packed));
#define USB_CAP_TYPE_WIRELESS_USB 1
struct usb_wireless_cap_descriptor { /* Ultra Wide Band */
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__u8 bmAttributes;
#define USB_WIRELESS_P2P_DRD (1 << 1)
#define USB_WIRELESS_BEACON_MASK (3 << 2)
#define USB_WIRELESS_BEACON_SELF (1 << 2)
#define USB_WIRELESS_BEACON_DIRECTED (2 << 2)
#define USB_WIRELESS_BEACON_NONE (3 << 2)
__le16 wPHYRates; /* bit rates, Mbps */
#define USB_WIRELESS_PHY_53 (1 << 0) /* always set */
#define USB_WIRELESS_PHY_80 (1 << 1)
#define USB_WIRELESS_PHY_107 (1 << 2) /* always set */
#define USB_WIRELESS_PHY_160 (1 << 3)
#define USB_WIRELESS_PHY_200 (1 << 4) /* always set */
#define USB_WIRELESS_PHY_320 (1 << 5)
#define USB_WIRELESS_PHY_400 (1 << 6)
#define USB_WIRELESS_PHY_480 (1 << 7)
__u8 bmTFITXPowerInfo; /* TFI power levels */
__u8 bmFFITXPowerInfo; /* FFI power levels */
__le16 bmBandGroup;
__u8 bReserved;
} __attribute__((packed));
/* USB 2.0 Extension descriptor */
#define USB_CAP_TYPE_EXT 2
struct usb_ext_cap_descriptor { /* Link Power Management */
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__le32 bmAttributes;
#define USB_LPM_SUPPORT (1 << 1) /* supports LPM */
#define USB_BESL_SUPPORT (1 << 2) /* supports BESL */
#define USB_BESL_BASELINE_VALID (1 << 3) /* Baseline BESL valid*/
#define USB_BESL_DEEP_VALID (1 << 4) /* Deep BESL valid */
#define USB_GET_BESL_BASELINE(p) (((p) & (0xf << 8)) >> 8)
#define USB_GET_BESL_DEEP(p) (((p) & (0xf << 12)) >> 12)
} __attribute__((packed));
#define USB_DT_USB_EXT_CAP_SIZE 7
/*
* SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB
* specific device level capabilities
*/
#define USB_SS_CAP_TYPE 3
struct usb_ss_cap_descriptor { /* Link Power Management */
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__u8 bmAttributes;
#define USB_LTM_SUPPORT (1 << 1) /* supports LTM */
__le16 wSpeedSupported;
#define USB_LOW_SPEED_OPERATION (1) /* Low speed operation */
#define USB_FULL_SPEED_OPERATION (1 << 1) /* Full speed operation */
#define USB_HIGH_SPEED_OPERATION (1 << 2) /* High speed operation */
#define USB_5GBPS_OPERATION (1 << 3) /* Operation at 5Gbps */
__u8 bFunctionalitySupport;
__u8 bU1devExitLat;
__le16 bU2DevExitLat;
} __attribute__((packed));
#define USB_DT_USB_SS_CAP_SIZE 10
/*
* Container ID Capability descriptor: Defines the instance unique ID used to
* identify the instance across all operating modes
*/
#define CONTAINER_ID_TYPE 4
struct usb_ss_container_id_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDevCapabilityType;
__u8 bReserved;
__u8 ContainerID[16]; /* 128-bit number */
} __attribute__((packed));
#define USB_DT_USB_SS_CONTN_ID_SIZE 20
/*-------------------------------------------------------------------------*/
/* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with
* each endpoint descriptor for a wireless device
*/
struct usb_wireless_ep_comp_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bMaxBurst;
__u8 bMaxSequence;
__le16 wMaxStreamDelay;
__le16 wOverTheAirPacketSize;
__u8 bOverTheAirInterval;
__u8 bmCompAttributes;
#define USB_ENDPOINT_SWITCH_MASK 0x03 /* in bmCompAttributes */
#define USB_ENDPOINT_SWITCH_NO 0
#define USB_ENDPOINT_SWITCH_SWITCH 1
#define USB_ENDPOINT_SWITCH_SCALE 2
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
* host and a device for connection set up, mutual authentication, and
* exchanging short lived session keys. The handshake depends on a CC.
*/
struct usb_handshake {
__u8 bMessageNumber;
__u8 bStatus;
__u8 tTKID[3];
__u8 bReserved;
__u8 CDID[16];
__u8 nonce[16];
__u8 MIC[8];
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
* A CC may also be set up using non-wireless secure channels (including
* wired USB!), and some devices may support CCs with multiple hosts.
*/
struct usb_connection_context {
__u8 CHID[16]; /* persistent host id */
__u8 CDID[16]; /* device id (unique w/in host context) */
__u8 CK[16]; /* connection key */
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB 2.0 defines three speeds, here's how Linux identifies them */
enum usb_device_speed {
USB_SPEED_UNKNOWN = 0, /* enumerating */
USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
USB_SPEED_HIGH, /* usb 2.0 */
USB_SPEED_WIRELESS, /* wireless (usb 2.5) */
USB_SPEED_SUPER, /* usb 3.0 */
};
enum usb_device_state {
/* NOTATTACHED isn't in the USB spec, and this state acts
* the same as ATTACHED ... but it's clearer this way.
*/
USB_STATE_NOTATTACHED = 0,
/* chapter 9 and authentication (wireless) device states */
USB_STATE_ATTACHED,
USB_STATE_POWERED, /* wired */
USB_STATE_RECONNECTING, /* auth */
USB_STATE_UNAUTHENTICATED, /* auth */
USB_STATE_DEFAULT, /* limited function */
USB_STATE_ADDRESS,
USB_STATE_CONFIGURED, /* most functions */
USB_STATE_SUSPENDED
/* NOTE: there are actually four different SUSPENDED
* states, returning to POWERED, DEFAULT, ADDRESS, or
* CONFIGURED respectively when SOF tokens flow again.
* At this level there's no difference between L1 and L2
* suspend states. (L2 being original USB 1.1 suspend.)
*/
};
enum usb3_link_state {
USB3_LPM_U0 = 0,
USB3_LPM_U1,
USB3_LPM_U2,
USB3_LPM_U3
};
/*
* A U1 timeout of 0x0 means the parent hub will reject any transitions to U1.
* 0xff means the parent hub will accept transitions to U1, but will not
* initiate a transition.
*
* A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to
* U1 after that many microseconds. Timeouts of 0x80 to 0xFE are reserved
* values.
*
* A U2 timeout of 0x0 means the parent hub will reject any transitions to U2.
* 0xff means the parent hub will accept transitions to U2, but will not
* initiate a transition.
*
* A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to
* U2 after N*256 microseconds. Therefore a U2 timeout value of 0x1 means a U2
* idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means
* 65.024ms.
*/
#define USB3_LPM_DISABLED 0x0
#define USB3_LPM_U1_MAX_TIMEOUT 0x7F
#define USB3_LPM_U2_MAX_TIMEOUT 0xFE
#define USB3_LPM_DEVICE_INITIATED 0xFF
struct usb_set_sel_req {
__u8 u1_sel;
__u8 u1_pel;
__le16 u2_sel;
__le16 u2_pel;
} __attribute__ ((packed));
/*
* The Set System Exit Latency control transfer provides one byte each for
* U1 SEL and U1 PEL, so the max exit latency is 0xFF. U2 SEL and U2 PEL each
* are two bytes long.
*/
#define USB3_LPM_MAX_U1_SEL_PEL 0xFF
#define USB3_LPM_MAX_U2_SEL_PEL 0xFFFF
/*-------------------------------------------------------------------------*/
/*
* As per USB compliance update, a device that is actively drawing
* more than 100mA from USB must report itself as bus-powered in
* the GetStatus(DEVICE) call.
* http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
*/
#define USB_SELF_POWER_VBUS_MAX_DRAW 100
#endif /* _UAPI__LINUX_USB_CH9_H */
include/uapi/linux/usb/functionfs.h 0 → 100644
View file @ d40ce170
#ifndef _UAPI__LINUX_FUNCTIONFS_H__
#define _UAPI__LINUX_FUNCTIONFS_H__
#include <linux/types.h>
#include <linux/ioctl.h>
#include <linux/usb/ch9.h>
enum {
FUNCTIONFS_DESCRIPTORS_MAGIC = 1,
FUNCTIONFS_STRINGS_MAGIC = 2
};
#ifndef __KERNEL__
/* Descriptor of an non-audio endpoint */
struct usb_endpoint_descriptor_no_audio {
__u8 bLength;
__u8 bDescriptorType;
__u8 bEndpointAddress;
__u8 bmAttributes;
__le16 wMaxPacketSize;
__u8 bInterval;
} __attribute__((packed));
/*
* All numbers must be in little endian order.
*/
struct usb_functionfs_descs_head {
__le32 magic;
__le32 length;
__le32 fs_count;
__le32 hs_count;
} __attribute__((packed));
/*
* Descriptors format:
*
* | off | name | type | description |
* |-----+-----------+--------------+--------------------------------------|
* | 0 | magic | LE32 | FUNCTIONFS_{FS,HS}_DESCRIPTORS_MAGIC |
* | 4 | length | LE32 | length of the whole data chunk |
* | 8 | fs_count | LE32 | number of full-speed descriptors |
* | 12 | hs_count | LE32 | number of high-speed descriptors |
* | 16 | fs_descrs | Descriptor[] | list of full-speed descriptors |
* | | hs_descrs | Descriptor[] | list of high-speed descriptors |
*
* descs are just valid USB descriptors and have the following format:
*
* | off | name | type | description |
* |-----+-----------------+------+--------------------------|
* | 0 | bLength | U8 | length of the descriptor |
* | 1 | bDescriptorType | U8 | descriptor type |
* | 2 | payload | | descriptor's payload |
*/
struct usb_functionfs_strings_head {
__le32 magic;
__le32 length;
__le32 str_count;
__le32 lang_count;
} __attribute__((packed));
/*
* Strings format:
*
* | off | name | type | description |
* |-----+------------+-----------------------+----------------------------|
* | 0 | magic | LE32 | FUNCTIONFS_STRINGS_MAGIC |
* | 4 | length | LE32 | length of the data chunk |
* | 8 | str_count | LE32 | number of strings |
* | 12 | lang_count | LE32 | number of languages |
* | 16 | stringtab | StringTab[lang_count] | table of strings per lang |
*
* For each language there is one stringtab entry (ie. there are lang_count
* stringtab entires). Each StringTab has following format:
*
* | off | name | type | description |
* |-----+---------+-------------------+------------------------------------|
* | 0 | lang | LE16 | language code |
* | 2 | strings | String[str_count] | array of strings in given language |
*
* For each string there is one strings entry (ie. there are str_count
* string entries). Each String is a NUL terminated string encoded in
* UTF-8.
*/
#endif
/*
* Events are delivered on the ep0 file descriptor, when the user mode driver
* reads from this file descriptor after writing the descriptors. Don't
* stop polling this descriptor.
*/
enum usb_functionfs_event_type {
FUNCTIONFS_BIND,
FUNCTIONFS_UNBIND,
FUNCTIONFS_ENABLE,
FUNCTIONFS_DISABLE,
FUNCTIONFS_SETUP,
FUNCTIONFS_SUSPEND,
FUNCTIONFS_RESUME
};
/* NOTE: this structure must stay the same size and layout on
* both 32-bit and 64-bit kernels.
*/
struct usb_functionfs_event {
union {
/* SETUP: packet; DATA phase i/o precedes next event
*(setup.bmRequestType & USB_DIR_IN) flags direction */
struct usb_ctrlrequest setup;
} __attribute__((packed)) u;
/* enum usb_functionfs_event_type */
__u8 type;
__u8 _pad[3];
} __attribute__((packed));
/* Endpoint ioctls */
/* The same as in gadgetfs */
/* IN transfers may be reported to the gadget driver as complete
* when the fifo is loaded, before the host reads the data;
* OUT transfers may be reported to the host's "client" driver as
* complete when they're sitting in the FIFO unread.
* THIS returns how many bytes are "unclaimed" in the endpoint fifo
* (needed for precise fault handling, when the hardware allows it)
*/
#define FUNCTIONFS_FIFO_STATUS _IO('g', 1)
/* discards any unclaimed data in the fifo. */
#define FUNCTIONFS_FIFO_FLUSH _IO('g', 2)
/* resets endpoint halt+toggle; used to implement set_interface.
* some hardware (like pxa2xx) can't support this.
*/
#define FUNCTIONFS_CLEAR_HALT _IO('g', 3)
/* Specific for functionfs */
/*
* Returns reverse mapping of an interface. Called on EP0. If there
* is no such interface returns -EDOM. If function is not active
* returns -ENODEV.
*/
#define FUNCTIONFS_INTERFACE_REVMAP _IO('g', 128)
/*
* Returns real bEndpointAddress of an endpoint. If function is not
* active returns -ENODEV.
*/
#define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
#endif /* _UAPI__LINUX_FUNCTIONFS_H__ */
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