631 строка
17 КиБ
Go
631 строка
17 КиБ
Go
//go:build sam && atsamd21
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package machine
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import (
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"device/sam"
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"machine/usb"
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"runtime/interrupt"
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"unsafe"
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)
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const (
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// these are SAMD21 specific.
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usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos = 0
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usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask = 0x3FFF
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usb_DEVICE_PCKSIZE_SIZE_Pos = 28
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usb_DEVICE_PCKSIZE_SIZE_Mask = 0x7
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usb_DEVICE_PCKSIZE_MULTI_PACKET_SIZE_Pos = 14
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usb_DEVICE_PCKSIZE_MULTI_PACKET_SIZE_Mask = 0x3FFF
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)
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// Configure the USB peripheral. The config is here for compatibility with the UART interface.
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func (dev *USBDevice) Configure(config UARTConfig) {
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if dev.initcomplete {
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return
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}
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// reset USB interface
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sam.USB_DEVICE.CTRLA.SetBits(sam.USB_DEVICE_CTRLA_SWRST)
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for sam.USB_DEVICE.SYNCBUSY.HasBits(sam.USB_DEVICE_SYNCBUSY_SWRST) ||
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sam.USB_DEVICE.SYNCBUSY.HasBits(sam.USB_DEVICE_SYNCBUSY_ENABLE) {
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}
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sam.USB_DEVICE.DESCADD.Set(uint32(uintptr(unsafe.Pointer(&usbEndpointDescriptors))))
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// configure pins
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USBCDC_DM_PIN.Configure(PinConfig{Mode: PinCom})
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USBCDC_DP_PIN.Configure(PinConfig{Mode: PinCom})
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// performs pad calibration from store fuses
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handlePadCalibration()
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// run in standby
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sam.USB_DEVICE.CTRLA.SetBits(sam.USB_DEVICE_CTRLA_RUNSTDBY)
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// set full speed
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sam.USB_DEVICE.CTRLB.SetBits(sam.USB_DEVICE_CTRLB_SPDCONF_FS << sam.USB_DEVICE_CTRLB_SPDCONF_Pos)
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// attach
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sam.USB_DEVICE.CTRLB.ClearBits(sam.USB_DEVICE_CTRLB_DETACH)
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// enable interrupt for end of reset
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sam.USB_DEVICE.INTENSET.SetBits(sam.USB_DEVICE_INTENSET_EORST)
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// enable interrupt for start of frame
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sam.USB_DEVICE.INTENSET.SetBits(sam.USB_DEVICE_INTENSET_SOF)
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// enable USB
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sam.USB_DEVICE.CTRLA.SetBits(sam.USB_DEVICE_CTRLA_ENABLE)
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// enable IRQ
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interrupt.New(sam.IRQ_USB, handleUSBIRQ).Enable()
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dev.initcomplete = true
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}
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func handlePadCalibration() {
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// Load Pad Calibration data from non-volatile memory
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// This requires registers that are not included in the SVD file.
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// Modeled after defines from samd21g18a.h and nvmctrl.h:
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//
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// #define NVMCTRL_OTP4 0x00806020
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//
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// #define USB_FUSES_TRANSN_ADDR (NVMCTRL_OTP4 + 4)
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// #define USB_FUSES_TRANSN_Pos 13 /**< \brief (NVMCTRL_OTP4) USB pad Transn calibration */
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// #define USB_FUSES_TRANSN_Msk (0x1Fu << USB_FUSES_TRANSN_Pos)
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// #define USB_FUSES_TRANSN(value) ((USB_FUSES_TRANSN_Msk & ((value) << USB_FUSES_TRANSN_Pos)))
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// #define USB_FUSES_TRANSP_ADDR (NVMCTRL_OTP4 + 4)
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// #define USB_FUSES_TRANSP_Pos 18 /**< \brief (NVMCTRL_OTP4) USB pad Transp calibration */
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// #define USB_FUSES_TRANSP_Msk (0x1Fu << USB_FUSES_TRANSP_Pos)
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// #define USB_FUSES_TRANSP(value) ((USB_FUSES_TRANSP_Msk & ((value) << USB_FUSES_TRANSP_Pos)))
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// #define USB_FUSES_TRIM_ADDR (NVMCTRL_OTP4 + 4)
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// #define USB_FUSES_TRIM_Pos 23 /**< \brief (NVMCTRL_OTP4) USB pad Trim calibration */
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// #define USB_FUSES_TRIM_Msk (0x7u << USB_FUSES_TRIM_Pos)
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// #define USB_FUSES_TRIM(value) ((USB_FUSES_TRIM_Msk & ((value) << USB_FUSES_TRIM_Pos)))
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//
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fuse := *(*uint32)(unsafe.Pointer(uintptr(0x00806020) + 4))
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calibTransN := uint16(fuse>>13) & uint16(0x1f)
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calibTransP := uint16(fuse>>18) & uint16(0x1f)
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calibTrim := uint16(fuse>>23) & uint16(0x7)
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if calibTransN == 0x1f {
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calibTransN = 5
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}
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sam.USB_DEVICE.PADCAL.SetBits(calibTransN << sam.USB_DEVICE_PADCAL_TRANSN_Pos)
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if calibTransP == 0x1f {
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calibTransP = 29
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}
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sam.USB_DEVICE.PADCAL.SetBits(calibTransP << sam.USB_DEVICE_PADCAL_TRANSP_Pos)
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if calibTrim == 0x7 {
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calibTrim = 3
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}
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sam.USB_DEVICE.PADCAL.SetBits(calibTrim << sam.USB_DEVICE_PADCAL_TRIM_Pos)
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}
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func handleUSBIRQ(intr interrupt.Interrupt) {
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// reset all interrupt flags
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flags := sam.USB_DEVICE.INTFLAG.Get()
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sam.USB_DEVICE.INTFLAG.Set(flags)
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// End of reset
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if (flags & sam.USB_DEVICE_INTFLAG_EORST) > 0 {
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// Configure control endpoint
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initEndpoint(0, usb.ENDPOINT_TYPE_CONTROL)
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usbConfiguration = 0
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// ack the End-Of-Reset interrupt
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sam.USB_DEVICE.INTFLAG.Set(sam.USB_DEVICE_INTFLAG_EORST)
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}
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// Start of frame
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if (flags & sam.USB_DEVICE_INTFLAG_SOF) > 0 {
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// if you want to blink LED showing traffic, this would be the place...
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}
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// Endpoint 0 Setup interrupt
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if getEPINTFLAG(0)&sam.USB_DEVICE_EPINTFLAG_RXSTP > 0 {
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// ack setup received
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setEPINTFLAG(0, sam.USB_DEVICE_EPINTFLAG_RXSTP)
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// parse setup
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setup := usb.NewSetup(udd_ep_out_cache_buffer[0][:])
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// Clear the Bank 0 ready flag on Control OUT
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usbEndpointDescriptors[0].DeviceDescBank[0].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_out_cache_buffer[0]))))
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usbEndpointDescriptors[0].DeviceDescBank[0].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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setEPSTATUSCLR(0, sam.USB_DEVICE_EPSTATUSCLR_BK0RDY)
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ok := false
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if (setup.BmRequestType & usb.REQUEST_TYPE) == usb.REQUEST_STANDARD {
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// Standard Requests
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ok = handleStandardSetup(setup)
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} else {
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// Class Interface Requests
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if setup.WIndex < uint16(len(usbSetupHandler)) && usbSetupHandler[setup.WIndex] != nil {
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ok = usbSetupHandler[setup.WIndex](setup)
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}
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}
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if ok {
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// set Bank1 ready
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setEPSTATUSSET(0, sam.USB_DEVICE_EPSTATUSSET_BK1RDY)
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} else {
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// Stall endpoint
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setEPSTATUSSET(0, sam.USB_DEVICE_EPINTFLAG_STALL1)
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}
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if getEPINTFLAG(0)&sam.USB_DEVICE_EPINTFLAG_STALL1 > 0 {
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// ack the stall
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setEPINTFLAG(0, sam.USB_DEVICE_EPINTFLAG_STALL1)
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// clear stall request
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setEPINTENCLR(0, sam.USB_DEVICE_EPINTENCLR_STALL1)
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}
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}
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// Now the actual transfer handlers, ignore endpoint number 0 (setup)
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var i uint32
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for i = 1; i < uint32(len(endPoints)); i++ {
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// Check if endpoint has a pending interrupt
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epFlags := getEPINTFLAG(i)
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setEPINTFLAG(i, epFlags)
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if (epFlags & sam.USB_DEVICE_EPINTFLAG_TRCPT0) > 0 {
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buf := handleEndpointRx(i)
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if usbRxHandler[i] != nil {
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usbRxHandler[i](buf)
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}
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handleEndpointRxComplete(i)
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} else if (epFlags & sam.USB_DEVICE_EPINTFLAG_TRCPT1) > 0 {
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if usbTxHandler[i] != nil {
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usbTxHandler[i]()
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}
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}
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}
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}
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func initEndpoint(ep, config uint32) {
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switch config {
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case usb.ENDPOINT_TYPE_INTERRUPT | usb.EndpointIn:
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// set packet size
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usbEndpointDescriptors[ep].DeviceDescBank[1].PCKSIZE.SetBits(epPacketSize(64) << usb_DEVICE_PCKSIZE_SIZE_Pos)
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// set data buffer address
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usbEndpointDescriptors[ep].DeviceDescBank[1].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_in_cache_buffer[ep]))))
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// set endpoint type
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setEPCFG(ep, ((usb.ENDPOINT_TYPE_INTERRUPT + 1) << sam.USB_DEVICE_EPCFG_EPTYPE1_Pos))
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setEPINTENSET(ep, sam.USB_DEVICE_EPINTENSET_TRCPT1)
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case usb.ENDPOINT_TYPE_BULK | usb.EndpointOut:
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// set packet size
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.SetBits(epPacketSize(64) << usb_DEVICE_PCKSIZE_SIZE_Pos)
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// set data buffer address
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usbEndpointDescriptors[ep].DeviceDescBank[0].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_out_cache_buffer[ep]))))
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// set endpoint type
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setEPCFG(ep, ((usb.ENDPOINT_TYPE_BULK + 1) << sam.USB_DEVICE_EPCFG_EPTYPE0_Pos))
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// receive interrupts when current transfer complete
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setEPINTENSET(ep, sam.USB_DEVICE_EPINTENSET_TRCPT0)
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// set byte count to zero, we have not received anything yet
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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// ready for next transfer
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setEPSTATUSCLR(ep, sam.USB_DEVICE_EPSTATUSCLR_BK0RDY)
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case usb.ENDPOINT_TYPE_INTERRUPT | usb.EndpointOut:
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// TODO: not really anything, seems like...
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case usb.ENDPOINT_TYPE_BULK | usb.EndpointIn:
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// set packet size
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usbEndpointDescriptors[ep].DeviceDescBank[1].PCKSIZE.SetBits(epPacketSize(64) << usb_DEVICE_PCKSIZE_SIZE_Pos)
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// set data buffer address
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usbEndpointDescriptors[ep].DeviceDescBank[1].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_in_cache_buffer[ep]))))
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// set endpoint type
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setEPCFG(ep, ((usb.ENDPOINT_TYPE_BULK + 1) << sam.USB_DEVICE_EPCFG_EPTYPE1_Pos))
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// NAK on endpoint IN, the bank is not yet filled in.
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setEPSTATUSCLR(ep, sam.USB_DEVICE_EPSTATUSCLR_BK1RDY)
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setEPINTENSET(ep, sam.USB_DEVICE_EPINTENSET_TRCPT1)
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case usb.ENDPOINT_TYPE_CONTROL:
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// Control OUT
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// set packet size
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.SetBits(epPacketSize(64) << usb_DEVICE_PCKSIZE_SIZE_Pos)
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// set data buffer address
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usbEndpointDescriptors[ep].DeviceDescBank[0].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_out_cache_buffer[ep]))))
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// set endpoint type
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setEPCFG(ep, getEPCFG(ep)|((usb.ENDPOINT_TYPE_CONTROL+1)<<sam.USB_DEVICE_EPCFG_EPTYPE0_Pos))
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// Control IN
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// set packet size
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usbEndpointDescriptors[ep].DeviceDescBank[1].PCKSIZE.SetBits(epPacketSize(64) << usb_DEVICE_PCKSIZE_SIZE_Pos)
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// set data buffer address
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usbEndpointDescriptors[ep].DeviceDescBank[1].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_in_cache_buffer[ep]))))
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// set endpoint type
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setEPCFG(ep, getEPCFG(ep)|((usb.ENDPOINT_TYPE_CONTROL+1)<<sam.USB_DEVICE_EPCFG_EPTYPE1_Pos))
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// Prepare OUT endpoint for receive
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// set multi packet size for expected number of receive bytes on control OUT
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.SetBits(64 << usb_DEVICE_PCKSIZE_MULTI_PACKET_SIZE_Pos)
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// set byte count to zero, we have not received anything yet
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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// NAK on endpoint OUT to show we are ready to receive control data
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setEPSTATUSSET(ep, sam.USB_DEVICE_EPSTATUSSET_BK0RDY)
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// Enable Setup-Received interrupt
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setEPINTENSET(0, sam.USB_DEVICE_EPINTENSET_RXSTP)
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}
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}
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func handleUSBSetAddress(setup usb.Setup) bool {
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// set packet size 64 with auto Zlp after transfer
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usbEndpointDescriptors[0].DeviceDescBank[1].PCKSIZE.Set((epPacketSize(64) << usb_DEVICE_PCKSIZE_SIZE_Pos) |
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uint32(1<<31)) // autozlp
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// ack the transfer is complete from the request
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setEPINTFLAG(0, sam.USB_DEVICE_EPINTFLAG_TRCPT1)
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// set bank ready for data
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setEPSTATUSSET(0, sam.USB_DEVICE_EPSTATUSSET_BK1RDY)
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// wait for transfer to complete
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timeout := 3000
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for (getEPINTFLAG(0) & sam.USB_DEVICE_EPINTFLAG_TRCPT1) == 0 {
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timeout--
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if timeout == 0 {
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return true
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}
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}
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// last, set the device address to that requested by host
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sam.USB_DEVICE.DADD.SetBits(setup.WValueL)
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sam.USB_DEVICE.DADD.SetBits(sam.USB_DEVICE_DADD_ADDEN)
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return true
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}
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// SendUSBInPacket sends a packet for USB (interrupt in / bulk in).
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func SendUSBInPacket(ep uint32, data []byte) bool {
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sendUSBPacket(ep, data, 0)
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// clear transfer complete flag
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setEPINTFLAG(ep, sam.USB_DEVICE_EPINTFLAG_TRCPT1)
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// send data by setting bank ready
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setEPSTATUSSET(ep, sam.USB_DEVICE_EPSTATUSSET_BK1RDY)
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return true
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}
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//go:noinline
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func sendUSBPacket(ep uint32, data []byte, maxsize uint16) {
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l := uint16(len(data))
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if 0 < maxsize && maxsize < l {
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l = maxsize
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}
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// Set endpoint address for sending data
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if ep == 0 {
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copy(udd_ep_control_cache_buffer[:], data[:l])
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usbEndpointDescriptors[ep].DeviceDescBank[1].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_control_cache_buffer))))
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} else {
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copy(udd_ep_in_cache_buffer[ep][:], data[:l])
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usbEndpointDescriptors[ep].DeviceDescBank[1].ADDR.Set(uint32(uintptr(unsafe.Pointer(&udd_ep_in_cache_buffer[ep]))))
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}
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// clear multi-packet size which is total bytes already sent
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usbEndpointDescriptors[ep].DeviceDescBank[1].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_MULTI_PACKET_SIZE_Mask << usb_DEVICE_PCKSIZE_MULTI_PACKET_SIZE_Pos)
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// set byte count, which is total number of bytes to be sent
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usbEndpointDescriptors[ep].DeviceDescBank[1].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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usbEndpointDescriptors[ep].DeviceDescBank[1].PCKSIZE.SetBits((uint32(l) & usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask) << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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}
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func ReceiveUSBControlPacket() ([cdcLineInfoSize]byte, error) {
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var b [cdcLineInfoSize]byte
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// Wait until OUT transfer is ready.
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timeout := 300000
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for (getEPSTATUS(0) & sam.USB_DEVICE_EPSTATUS_BK0RDY) == 0 {
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timeout--
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if timeout == 0 {
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return b, ErrUSBReadTimeout
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}
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}
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// Wait until OUT transfer is completed.
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timeout = 300000
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for (getEPINTFLAG(0) & sam.USB_DEVICE_EPINTFLAG_TRCPT0) == 0 {
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timeout--
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if timeout == 0 {
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return b, ErrUSBReadTimeout
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}
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}
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// get data
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bytesread := uint32((usbEndpointDescriptors[0].DeviceDescBank[0].PCKSIZE.Get() >>
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usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos) & usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask)
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if bytesread != cdcLineInfoSize {
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return b, ErrUSBBytesRead
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}
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copy(b[:7], udd_ep_out_cache_buffer[0][:7])
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return b, nil
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}
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func handleEndpointRx(ep uint32) []byte {
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// get data
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count := int((usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.Get() >>
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usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos) & usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask)
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return udd_ep_out_cache_buffer[ep][:count]
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}
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func handleEndpointRxComplete(ep uint32) {
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// set byte count to zero
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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// set multi packet size to 64
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usbEndpointDescriptors[ep].DeviceDescBank[0].PCKSIZE.SetBits(64 << usb_DEVICE_PCKSIZE_MULTI_PACKET_SIZE_Pos)
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// set ready for next data
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setEPSTATUSCLR(ep, sam.USB_DEVICE_EPSTATUSCLR_BK0RDY)
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}
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func SendZlp() {
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usbEndpointDescriptors[0].DeviceDescBank[1].PCKSIZE.ClearBits(usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos)
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}
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func epPacketSize(size uint16) uint32 {
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switch size {
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case 8:
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return 0
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case 16:
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return 1
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case 32:
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return 2
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case 64:
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return 3
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case 128:
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return 4
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case 256:
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return 5
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case 512:
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return 6
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case 1023:
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return 7
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default:
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return 0
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}
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}
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func getEPCFG(ep uint32) uint8 {
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switch ep {
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case 0:
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return sam.USB_DEVICE.EPCFG0.Get()
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case 1:
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return sam.USB_DEVICE.EPCFG1.Get()
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case 2:
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return sam.USB_DEVICE.EPCFG2.Get()
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case 3:
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return sam.USB_DEVICE.EPCFG3.Get()
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case 4:
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return sam.USB_DEVICE.EPCFG4.Get()
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case 5:
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return sam.USB_DEVICE.EPCFG5.Get()
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case 6:
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return sam.USB_DEVICE.EPCFG6.Get()
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case 7:
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return sam.USB_DEVICE.EPCFG7.Get()
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default:
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return 0
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}
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}
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func setEPCFG(ep uint32, val uint8) {
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switch ep {
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case 0:
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sam.USB_DEVICE.EPCFG0.Set(val)
|
|
case 1:
|
|
sam.USB_DEVICE.EPCFG1.Set(val)
|
|
case 2:
|
|
sam.USB_DEVICE.EPCFG2.Set(val)
|
|
case 3:
|
|
sam.USB_DEVICE.EPCFG3.Set(val)
|
|
case 4:
|
|
sam.USB_DEVICE.EPCFG4.Set(val)
|
|
case 5:
|
|
sam.USB_DEVICE.EPCFG5.Set(val)
|
|
case 6:
|
|
sam.USB_DEVICE.EPCFG6.Set(val)
|
|
case 7:
|
|
sam.USB_DEVICE.EPCFG7.Set(val)
|
|
default:
|
|
return
|
|
}
|
|
}
|
|
|
|
func setEPSTATUSCLR(ep uint32, val uint8) {
|
|
switch ep {
|
|
case 0:
|
|
sam.USB_DEVICE.EPSTATUSCLR0.Set(val)
|
|
case 1:
|
|
sam.USB_DEVICE.EPSTATUSCLR1.Set(val)
|
|
case 2:
|
|
sam.USB_DEVICE.EPSTATUSCLR2.Set(val)
|
|
case 3:
|
|
sam.USB_DEVICE.EPSTATUSCLR3.Set(val)
|
|
case 4:
|
|
sam.USB_DEVICE.EPSTATUSCLR4.Set(val)
|
|
case 5:
|
|
sam.USB_DEVICE.EPSTATUSCLR5.Set(val)
|
|
case 6:
|
|
sam.USB_DEVICE.EPSTATUSCLR6.Set(val)
|
|
case 7:
|
|
sam.USB_DEVICE.EPSTATUSCLR7.Set(val)
|
|
default:
|
|
return
|
|
}
|
|
}
|
|
|
|
func setEPSTATUSSET(ep uint32, val uint8) {
|
|
switch ep {
|
|
case 0:
|
|
sam.USB_DEVICE.EPSTATUSSET0.Set(val)
|
|
case 1:
|
|
sam.USB_DEVICE.EPSTATUSSET1.Set(val)
|
|
case 2:
|
|
sam.USB_DEVICE.EPSTATUSSET2.Set(val)
|
|
case 3:
|
|
sam.USB_DEVICE.EPSTATUSSET3.Set(val)
|
|
case 4:
|
|
sam.USB_DEVICE.EPSTATUSSET4.Set(val)
|
|
case 5:
|
|
sam.USB_DEVICE.EPSTATUSSET5.Set(val)
|
|
case 6:
|
|
sam.USB_DEVICE.EPSTATUSSET6.Set(val)
|
|
case 7:
|
|
sam.USB_DEVICE.EPSTATUSSET7.Set(val)
|
|
default:
|
|
return
|
|
}
|
|
}
|
|
|
|
func getEPSTATUS(ep uint32) uint8 {
|
|
switch ep {
|
|
case 0:
|
|
return sam.USB_DEVICE.EPSTATUS0.Get()
|
|
case 1:
|
|
return sam.USB_DEVICE.EPSTATUS1.Get()
|
|
case 2:
|
|
return sam.USB_DEVICE.EPSTATUS2.Get()
|
|
case 3:
|
|
return sam.USB_DEVICE.EPSTATUS3.Get()
|
|
case 4:
|
|
return sam.USB_DEVICE.EPSTATUS4.Get()
|
|
case 5:
|
|
return sam.USB_DEVICE.EPSTATUS5.Get()
|
|
case 6:
|
|
return sam.USB_DEVICE.EPSTATUS6.Get()
|
|
case 7:
|
|
return sam.USB_DEVICE.EPSTATUS7.Get()
|
|
default:
|
|
return 0
|
|
}
|
|
}
|
|
|
|
func getEPINTFLAG(ep uint32) uint8 {
|
|
switch ep {
|
|
case 0:
|
|
return sam.USB_DEVICE.EPINTFLAG0.Get()
|
|
case 1:
|
|
return sam.USB_DEVICE.EPINTFLAG1.Get()
|
|
case 2:
|
|
return sam.USB_DEVICE.EPINTFLAG2.Get()
|
|
case 3:
|
|
return sam.USB_DEVICE.EPINTFLAG3.Get()
|
|
case 4:
|
|
return sam.USB_DEVICE.EPINTFLAG4.Get()
|
|
case 5:
|
|
return sam.USB_DEVICE.EPINTFLAG5.Get()
|
|
case 6:
|
|
return sam.USB_DEVICE.EPINTFLAG6.Get()
|
|
case 7:
|
|
return sam.USB_DEVICE.EPINTFLAG7.Get()
|
|
default:
|
|
return 0
|
|
}
|
|
}
|
|
|
|
func setEPINTFLAG(ep uint32, val uint8) {
|
|
switch ep {
|
|
case 0:
|
|
sam.USB_DEVICE.EPINTFLAG0.Set(val)
|
|
case 1:
|
|
sam.USB_DEVICE.EPINTFLAG1.Set(val)
|
|
case 2:
|
|
sam.USB_DEVICE.EPINTFLAG2.Set(val)
|
|
case 3:
|
|
sam.USB_DEVICE.EPINTFLAG3.Set(val)
|
|
case 4:
|
|
sam.USB_DEVICE.EPINTFLAG4.Set(val)
|
|
case 5:
|
|
sam.USB_DEVICE.EPINTFLAG5.Set(val)
|
|
case 6:
|
|
sam.USB_DEVICE.EPINTFLAG6.Set(val)
|
|
case 7:
|
|
sam.USB_DEVICE.EPINTFLAG7.Set(val)
|
|
default:
|
|
return
|
|
}
|
|
}
|
|
|
|
func setEPINTENCLR(ep uint32, val uint8) {
|
|
switch ep {
|
|
case 0:
|
|
sam.USB_DEVICE.EPINTENCLR0.Set(val)
|
|
case 1:
|
|
sam.USB_DEVICE.EPINTENCLR1.Set(val)
|
|
case 2:
|
|
sam.USB_DEVICE.EPINTENCLR2.Set(val)
|
|
case 3:
|
|
sam.USB_DEVICE.EPINTENCLR3.Set(val)
|
|
case 4:
|
|
sam.USB_DEVICE.EPINTENCLR4.Set(val)
|
|
case 5:
|
|
sam.USB_DEVICE.EPINTENCLR5.Set(val)
|
|
case 6:
|
|
sam.USB_DEVICE.EPINTENCLR6.Set(val)
|
|
case 7:
|
|
sam.USB_DEVICE.EPINTENCLR7.Set(val)
|
|
default:
|
|
return
|
|
}
|
|
}
|
|
|
|
func setEPINTENSET(ep uint32, val uint8) {
|
|
switch ep {
|
|
case 0:
|
|
sam.USB_DEVICE.EPINTENSET0.Set(val)
|
|
case 1:
|
|
sam.USB_DEVICE.EPINTENSET1.Set(val)
|
|
case 2:
|
|
sam.USB_DEVICE.EPINTENSET2.Set(val)
|
|
case 3:
|
|
sam.USB_DEVICE.EPINTENSET3.Set(val)
|
|
case 4:
|
|
sam.USB_DEVICE.EPINTENSET4.Set(val)
|
|
case 5:
|
|
sam.USB_DEVICE.EPINTENSET5.Set(val)
|
|
case 6:
|
|
sam.USB_DEVICE.EPINTENSET6.Set(val)
|
|
case 7:
|
|
sam.USB_DEVICE.EPINTENSET7.Set(val)
|
|
default:
|
|
return
|
|
}
|
|
}
|