usb

const (
	USB_ANALOG_USBx_CHRG_DETECT = 0x10
	CHRG_DETECT_EN_B            = 20
	CHRG_DETECT_CHK_CHRG_B      = 19

	USBPHYx_PWD = 0x00

	USBPHYx_CTRL            = 0x30
	CTRL_SFTRST             = 31
	CTRL_CLKGATE            = 30
	CTRL_ENUTMILEVEL3       = 15
	CTRL_ENUTMILEVEL2       = 14
	CTRL_ENHOSTDISCONDETECT = 1

	USB_UOGx_USBCMD = 0x140
	USBCMD_RST      = 1
	USBCMD_RS       = 0

	USB_UOGx_USBSTS = 0x144
	USBSTS_URI      = 6
	USBSTS_UI       = 0

	USB_UOGx_USBINTR = 0x148

	USB_UOGx_DEVICEADDR = 0x154
	DEVICEADDR_USBADR   = 25
	DEVICEADDR_USBADRA  = 24

	USB_UOGx_ENDPTLISTADDR = 0x158
	ENDPTLISTADDR_EPBASE   = 11

	USB_UOGx_PORTSC1 = 0x184
	PORTSC_PTS_1     = 30
	PORTSC_PSPD      = 26
	PORTSC_PR        = 8

	USB_UOGx_OTGSC = 0x1a4
	OTGSC_OT       = 3

	USB_UOGx_USBMODE  = 0x1a8
	USBMODE_SDIS      = 4
	USBMODE_SLOM      = 3
	USBMODE_CM        = 0
	USBMODE_CM_DEVICE = 0b10
	USBMODE_CM_HOST   = 0b11

	USB_UOGx_ENDPTSETUPSTAT = 0x1ac

	USB_UOGx_ENDPTPRIME = 0x1b0
	ENDPTPRIME_PETB     = 16
	ENDPTPRIME_PERB     = 0

	USB_UOGx_ENDPTFLUSH = 0x1b4
	ENDPTFLUSH_FETB     = 16
	ENDPTFLUSH_FERB     = 0

	USB_UOGx_ENDPTSTAT = 0x1b8

	USB_UOGx_ENDPTCOMPLETE = 0x1bc
	ENDPTCOMPLETE_ETBR     = 16
	ENDPTCOMPLETE_ERBR     = 0

	USB_UOGx_ENDPTCTRL = 0x1c0
	ENDPTCTRL_TXE      = 23
	ENDPTCTRL_TXR      = 22
	ENDPTCTRL_TXI      = 21
	ENDPTCTRL_TXT      = 18
	ENDPTCTRL_TXS      = 16
	ENDPTCTRL_RXE      = 7
	ENDPTCTRL_RXR      = 6
	ENDPTCTRL_RXI      = 5
	ENDPTCTRL_RXT      = 2
	ENDPTCTRL_RXS      = 0
)

const (
	IRQ_TI1   = 25
	IRQ_TI0   = 24
	IRQ_NAKI  = 16
	IRQ_AS    = 15
	IRQ_PS    = 14
	IRQ_RCP   = 13
	IRQ_HCH   = 12
	IRQ_ULPII = 10
	IRQ_SLI   = 8
	IRQ_SRI   = 7
	IRQ_URI   = 6
	IRQ_AAI   = 5
	IRQ_SEI   = 4
	IRQ_FRI   = 3
	IRQ_PCI   = 2
	IRQ_UEI   = 1
	IRQ_UI    = 0
)

const (
	DEVICE_LENGTH                = 18
	CONFIGURATION_LENGTH         = 9
	INTERFACE_ASSOCIATION_LENGTH = 8
	INTERFACE_LENGTH             = 9
	ENDPOINT_LENGTH              = 7
	DEVICE_QUALIFIER_LENGTH      = 10
)

const (
	// p16, Table 4.3-1, CCID Rev1.1
	SMARTCARD_DEVICE_CLASS = 0x0b

	// p17, Table 5.1-1, CCID Rev1.1
	CCID_INTERFACE         = 0x21
	CCID_DESCRIPTOR_LENGTH = 54
)

const (
	// p39, Table 14: Communication Device Class Code
	// USB Class Definitions for Communication Devices 1.1
	COMMUNICATION_DEVICE_CLASS = 0x02

	// p39, Table 15: Communication Interface Class Code
	// USB Class Definitions for Communication Devices 1.1
	COMMUNICATION_INTERFACE_CLASS = 0x02

	// p40, Table 17: Data Interface Class Code
	// USB Class Definitions for Communication Devices 1.1
	DATA_INTERFACE_CLASS = 0x0a

	// p44, Table 24: Type Values for the bDescriptorType Field,
	// USB Class Definitions for Communication Devices 1.1
	CS_INTERFACE = 0x24

	// p64, Table 46: Class-Specific Request Codes,
	// USB Class Definitions for Communication Devices 1.1
	SET_ETHERNET_PACKET_FILTER = 0x43

	// Maximum Segment Size
	MSS = 1500 + 14
)

const (
	ACM_SUBCLASS = 0x02
	ETH_SUBCLASS = 0x06
)

const (
	HEADER                      = 0x00
	CALL_MANAGEMENT             = 0x01
	ABSTRACT_CONTROL_MANAGEMENT = 0x02
	UNION                       = 0x06
	ETHERNET_NETWORKING         = 0x0f
)

const (
	// p11, Table 4.5 - Bulk-Only Data Interface Descriptor,
	// USB Mass Storage Class 1.0
	MASS_STORAGE_CLASS           = 0x08
	BULK_ONLY_TRANSPORT_PROTOCOL = 0x50

	// p11, Table 1 — SubClass Codes Mapped to Command Block
	// Specifications, MSCO Revision 1.4
	SCSI_CLASS = 0x06

	CBW_LENGTH        = 31
	CBW_CB_MAX_LENGTH = 16

	CBW_SIGNATURE = 0x43425355
	CSW_SIGNATURE = 0x53425355

	// p15, Table 5.3 - Command Block Status Values,
	// USB Mass Storage Class 1.0
	CSW_STATUS_COMMAND_PASSED = 0x00
	CSW_STATUS_COMMAND_FAILED = 0x01
	CSW_STATUS_PHASE_ERROR    = 0x02

	// p7, 3.1 - 3.2, USB Mass Storage Class 1.0
	BULK_ONLY_MASS_STORAGE_RESET = 0xff
	GET_MAX_LUN                  = 0xfe
)

const (
	// The USB OTG device controller hardware supports up to 8 endpoint
	// numbers.
	MAX_ENDPOINTS = 8

	// Host -> Device
	OUT = 0
	// Device -> Host
	IN = 1

	// Transfer Type
	CONTROL     = 0
	ISOCHRONOUS = 1
	BULK        = 2
	INTERRUPT   = 3

	// p3784, 56.4.5.1 Endpoint Queue Head (dQH), IMX6ULLRM
	DQH_LIST_ALIGN = 2048
	DQH_ALIGN      = 64
	DQH_SIZE       = 64

	DQH_INFO  = 0
	INFO_MULT = 30
	INFO_ZLT  = 29
	INFO_MPL  = 16
	INFO_IOS  = 15

	DQH_CURRENT = 4
	DQH_NEXT    = 8
	DQH_TOKEN   = 12

	// p3787, 56.4.5.2 Endpoint Transfer Descriptor (dTD), IMX6ULLRM
	DTD_ALIGN     = 32
	DTD_SIZE      = 28
	DTD_PAGES     = 5
	DTD_PAGE_SIZE = 4096
	DTD_NEXT      = 0

	DTD_TOKEN    = 4
	TOKEN_TOTAL  = 16
	TOKEN_IOC    = 15
	TOKEN_MULTO  = 10
	TOKEN_ACTIVE = 7
	TOKEN_STATUS = 0
)

const (
	GET_STATUS        = 0
	CLEAR_FEATURE     = 1
	SET_FEATURE       = 3
	SET_ADDRESS       = 5
	GET_DESCRIPTOR    = 6
	SET_DESCRIPTOR    = 7
	GET_CONFIGURATION = 8
	SET_CONFIGURATION = 9
	GET_INTERFACE     = 10
	SET_INTERFACE     = 11
	SYNCH_FRAME       = 12
)

const (
	DEVICE                    = 1
	CONFIGURATION             = 2
	STRING                    = 3
	INTERFACE                 = 4
	ENDPOINT                  = 5
	DEVICE_QUALIFIER          = 6
	OTHER_SPEED_CONFIGURATION = 7
	INTERFACE_POWER           = 8

	// Engineering Change Notices (ECN)
	OTG                   = 9
	DEBUG                 = 10
	INTERFACE_ASSOCIATION = 11
)

const (
	ENDPOINT_HALT        = 0
	DEVICE_REMOTE_WAKEUP = 1
	TEST_MODE            = 2
)

const (
	AT_COMMAND_PROTOCOL = 0x01
)

const (
	REQUEST_TYPE_DIR = 7
)