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author | Dean Camera <dean@fourwalledcubicle.com> | 2013-04-14 08:48:55 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2013-04-14 08:48:55 +0000 |
commit | b6a38164bdaf67bdd482e93b32bad9c3c5720264 (patch) | |
tree | b77d816e6a1a07e621c5f8ced5e6b5f70d922b75 /LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c | |
parent | 70c59a7e42e5091a96af2607730cef7a83d5bbbd (diff) | |
download | lufa-b6a38164bdaf67bdd482e93b32bad9c3c5720264.tar.gz lufa-b6a38164bdaf67bdd482e93b32bad9c3c5720264.tar.bz2 lufa-b6a38164bdaf67bdd482e93b32bad9c3c5720264.zip |
Reduce the amount of inlining of core Endpoint functions for XMEGA, to reduce the compiled code size (size/speed tradeoff).
Diffstat (limited to 'LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c')
-rw-r--r-- | LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c | 104 |
1 files changed, 102 insertions, 2 deletions
diff --git a/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c b/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c index 5dc75fc86..b8a80a479 100644 --- a/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c +++ b/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c @@ -48,6 +48,106 @@ volatile uint8_t USB_Endpoint_SelectedEndpoint; volatile USB_EP_t* USB_Endpoint_SelectedHandle; volatile Endpoint_FIFO_t* USB_Endpoint_SelectedFIFO; +bool Endpoint_IsINReady(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint | ENDPOINT_DIR_IN); + + return ((USB_Endpoint_SelectedHandle->STATUS & USB_EP_BUSNACK0_bm) ? true : false); +} + +bool Endpoint_IsOUTReceived(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + + if (USB_Endpoint_SelectedHandle->STATUS & USB_EP_TRNCOMPL0_bm) + { + USB_Endpoint_SelectedFIFO->Length = USB_Endpoint_SelectedHandle->CNT; + return true; + } + + return false; +} + +bool Endpoint_IsSETUPReceived(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + + if (USB_Endpoint_SelectedHandle->STATUS & USB_EP_SETUP_bm) + { + USB_Endpoint_SelectedFIFO->Length = USB_Endpoint_SelectedHandle->CNT; + return true; + } + + return false; +} + +void Endpoint_ClearSETUP(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_SETUP_bm | USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedHandle->STATUS |= USB_EP_TOGGLE_bm; + USB_Endpoint_SelectedFIFO->Position = 0; + + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint | ENDPOINT_DIR_IN); + USB_Endpoint_SelectedHandle->STATUS |= USB_EP_TOGGLE_bm; + USB_Endpoint_SelectedFIFO->Position = 0; +} + +void Endpoint_ClearIN(void) +{ + USB_Endpoint_SelectedHandle->CNT = USB_Endpoint_SelectedFIFO->Position; + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedFIFO->Position = 0; +} + +void Endpoint_ClearOUT(void) +{ + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedFIFO->Position = 0; +} + +void Endpoint_StallTransaction(void) +{ + USB_Endpoint_SelectedHandle->CTRL |= USB_EP_STALL_bm; + + if ((USB_Endpoint_SelectedHandle->CTRL & USB_EP_TYPE_gm) == USB_EP_TYPE_CONTROL_gc) + { + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint ^ ENDPOINT_DIR_IN); + USB_Endpoint_SelectedHandle->CTRL |= USB_EP_STALL_bm; + } +} + +uint8_t Endpoint_Read_8(void) +{ + return USB_Endpoint_SelectedFIFO->Data[USB_Endpoint_SelectedFIFO->Position++]; +} + +void Endpoint_Write_8(const uint8_t Data) +{ + USB_Endpoint_SelectedFIFO->Data[USB_Endpoint_SelectedFIFO->Position++] = Data; +} + +void Endpoint_SelectEndpoint(const uint8_t Address) +{ + uint8_t EndpointNumber = (Address & ENDPOINT_EPNUM_MASK); + + USB_Endpoint_SelectedEndpoint = Address; + + Endpoint_FIFOPair_t* EndpointFIFOPair = &USB_Endpoint_FIFOs[EndpointNumber]; + USB_EndpointTable_t* EndpointTable = (USB_EndpointTable_t*)USB.EPPTR; + + if (Address & ENDPOINT_DIR_IN) + { + USB_Endpoint_SelectedFIFO = &EndpointFIFOPair->IN; + USB_Endpoint_SelectedHandle = &EndpointTable->Endpoints[EndpointNumber].IN; + } + else + { + USB_Endpoint_SelectedFIFO = &EndpointFIFOPair->OUT; + USB_Endpoint_SelectedHandle = &EndpointTable->Endpoints[EndpointNumber].OUT; + } +} + bool Endpoint_ConfigureEndpointTable(const USB_Endpoint_Table_t* const Table, const uint8_t Entries) { @@ -55,13 +155,13 @@ bool Endpoint_ConfigureEndpointTable(const USB_Endpoint_Table_t* const Table, { if (!(Table[i].Address)) continue; - + if (!(Endpoint_ConfigureEndpoint(Table[i].Address, Table[i].Type, Table[i].Size, Table[i].Banks))) { return false; } } - + return true; } |