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Code Issues Releases Activity

Added >64 byte USB_RecvControl() support

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This commit is contained in:
NicoHood 2015-11-07 19:20:50 +01:00 committed by Cristian Maglie
parent 0b97e57b2c
commit 6367168925
1 changed files with 16 additions and 5 deletions
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21
hardware/arduino/avr/cores/arduino/USBCore.cpp
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@ -425,13 +425,24 @@ static bool USB_SendStringDescriptor(const u8*string_P, u8 string_len, uint8_t f
} }
// Does not timeout or cross fifo boundaries // Does not timeout or cross fifo boundaries
// Will only work for transfers <= 64 bytes
// TODO
int USB_RecvControl(void* d, int len) int USB_RecvControl(void* d, int len)
{ {
WaitOUT(); auto length = len;
Recv((u8*)d,len); while(length)
ClearOUT(); {
// Dont receive more than the USB Control EP has to offer
// Use fixed 64 because control EP always have 64 bytes even on 16u2.
auto recvLength = length;
if(recvLength > 64){
recvLength = 64;
}
// Write data to fit to the end (not the beginning) of the array
WaitOUT();
Recv((u8*)d + len - length, recvLength);
ClearOUT();
length -= recvLength;
}
return len; return len;
} }