machine/atsamd21,atsamd51: clear the USB packet size before setting it again when sending
Signed-off-by: Ron Evans <ron@hybridgroup.com>
Этот коммит содержится в:
родитель
ccf8b378b3
коммит
5d539df216
2 изменённых файлов: 2 добавлений и 4 удалений
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@ -1477,8 +1477,6 @@ func handleUSB(intr interrupt.Interrupt) {
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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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} else {
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sendZlp()
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}
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// Now the actual transfer handlers, ignore endpoint number 0 (setup)
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@ -1749,6 +1747,7 @@ func sendUSBPacket(ep uint32, data []byte) {
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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((len(data) & usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask) << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos))
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}
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@ -1648,8 +1648,6 @@ func handleUSBIRQ(interrupt.Interrupt) {
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// clear stall request
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setEPINTENCLR(0, sam.USB_DEVICE_ENDPOINT_EPINTENCLR_STALL1)
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}
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} else {
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sendZlp()
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}
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// Now the actual transfer handlers, ignore endpoint number 0 (setup)
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@ -1920,6 +1918,7 @@ func sendUSBPacket(ep uint32, data []byte) {
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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((len(data) & usb_DEVICE_PCKSIZE_BYTE_COUNT_Mask) << usb_DEVICE_PCKSIZE_BYTE_COUNT_Pos))
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}
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