diff options
Diffstat (limited to 'LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h')
-rw-r--r-- | LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h | 120 |
1 files changed, 65 insertions, 55 deletions
diff --git a/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h b/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h index 0667f6704..c26f7e5b4 100644 --- a/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h +++ b/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h @@ -99,17 +99,23 @@ /* Type Defines: */ typedef struct { - uint8_t Data[64]; - uint8_t BankSize; - uint8_t FIFOLength; - uint8_t FIFOPosition; - } Endpoint_AuxData_t; + uint8_t Data[64]; + + uint8_t Length; + uint8_t Position; + } Endpoint_FIFO_t; + + typedef struct + { + Endpoint_FIFO_t OUT; + Endpoint_FIFO_t IN; + } Endpoint_FIFOPair_t; /* External Variables: */ - extern Endpoint_AuxData_t Endpoint_AuxData[ENDPOINT_DETAILS_MAXEP * 2]; - extern volatile uint8_t Endpoint_SelectedEndpoint; - extern volatile USB_EP_t* Endpoint_SelectedEndpointHandle; - extern volatile Endpoint_AuxData_t* Endpoint_SelectedEndpointAux; + extern Endpoint_FIFOPair_t USB_Endpoint_FIFOs[ENDPOINT_DETAILS_MAXEP]; + extern volatile uint8_t USB_Endpoint_SelectedEndpoint; + extern volatile USB_EP_t* USB_Endpoint_SelectedHandle; + extern volatile Endpoint_FIFO_t* USB_Endpoint_SelectedFIFO; /* Inline Functions: */ static inline uint8_t Endpoint_BytesToEPSizeMask(const uint16_t Bytes) ATTR_WARN_UNUSED_RESULT ATTR_CONST @@ -224,17 +230,21 @@ * * \param[in] EndpointNumber Endpoint number to select. */ - static inline void Endpoint_SelectEndpoint(const uint8_t EndpointNumber) ATTR_ALWAYS_INLINE; + static inline void Endpoint_SelectEndpoint(const uint8_t EndpointNumber); static inline void Endpoint_SelectEndpoint(const uint8_t EndpointNumber) { - uint8_t EPTableIndex = ((EndpointNumber & ENDPOINT_EPNUM_MASK) << 1) | - ((EndpointNumber & ENDPOINT_DIR_IN) ? 0x01 : 0); - - Endpoint_SelectedEndpoint = EndpointNumber; - Endpoint_SelectedEndpointAux = &Endpoint_AuxData[EPTableIndex]; - Endpoint_SelectedEndpointHandle = (EndpointNumber & ENDPOINT_DIR_IN) ? - &USB_EndpointTable.Endpoints[EndpointNumber & ENDPOINT_EPNUM_MASK].IN : - &USB_EndpointTable.Endpoints[EndpointNumber & ENDPOINT_EPNUM_MASK].OUT; + USB_Endpoint_SelectedEndpoint = EndpointNumber; + + if (EndpointNumber & ENDPOINT_DIR_IN) + { + USB_Endpoint_SelectedFIFO = &USB_Endpoint_FIFOs[EndpointNumber & ENDPOINT_EPNUM_MASK].IN; + USB_Endpoint_SelectedHandle = &USB_EndpointTable.Endpoints[EndpointNumber & ENDPOINT_EPNUM_MASK].IN; + } + else + { + USB_Endpoint_SelectedFIFO = &USB_Endpoint_FIFOs[EndpointNumber & ENDPOINT_EPNUM_MASK].OUT; + USB_Endpoint_SelectedHandle = &USB_EndpointTable.Endpoints[EndpointNumber & ENDPOINT_EPNUM_MASK].OUT; + } } /** Configures the specified endpoint number with the given endpoint type, direction, bank size @@ -260,20 +270,11 @@ * More banks uses more USB DPRAM, but offers better performance. Isochronous type * endpoints <b>must</b> have at least two banks. * - * \note When the \c ORDERED_EP_CONFIG compile time option is used, Endpoints <b>must</b> be configured in - * ascending order, or bank corruption will occur. - * \n\n - * - * \note Different endpoints may have different maximum packet sizes based on the endpoint's index - refer to - * the chosen microcontroller model's datasheet to determine the maximum bank size for each endpoint. - * \n\n - * * \note The default control endpoint should not be manually configured by the user application, as * it is automatically configured by the library internally. * \n\n * - * \note This routine will automatically select the specified endpoint upon success. Upon failure, the endpoint - * which failed to reconfigure correctly will be selected. + * \note This routine will automatically select the specified endpoint. * * \return Boolean \c true if the configuration succeeded, \c false otherwise. */ @@ -321,7 +322,7 @@ static inline uint16_t Endpoint_BytesInEndpoint(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline uint16_t Endpoint_BytesInEndpoint(void) { - return Endpoint_SelectedEndpointAux->FIFOPosition; + return USB_Endpoint_SelectedFIFO->Position; } /** Get the endpoint address of the currently selected endpoint. This is typically used to save @@ -333,7 +334,7 @@ static inline uint8_t Endpoint_GetCurrentEndpoint(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline uint8_t Endpoint_GetCurrentEndpoint(void) { - return Endpoint_SelectedEndpoint; + return USB_Endpoint_SelectedEndpoint; } /** Resets the endpoint bank FIFO. This clears all the endpoint banks and resets the USB controller's @@ -344,7 +345,7 @@ static inline void Endpoint_ResetEndpoint(const uint8_t EndpointNumber) ATTR_ALWAYS_INLINE; static inline void Endpoint_ResetEndpoint(const uint8_t EndpointNumber) { - Endpoint_SelectedEndpointAux->FIFOPosition = 0; + USB_Endpoint_SelectedFIFO->Position = 0; } /** Determines if the currently selected endpoint is enabled, but not necessarily configured. @@ -383,7 +384,7 @@ static inline bool Endpoint_IsReadWriteAllowed(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline bool Endpoint_IsReadWriteAllowed(void) { - return (Endpoint_SelectedEndpointAux->FIFOPosition < Endpoint_SelectedEndpointAux->FIFOLength); + return (USB_Endpoint_SelectedFIFO->Position < USB_Endpoint_SelectedFIFO->Length); } /** Determines if the currently selected endpoint is configured. @@ -393,7 +394,7 @@ static inline bool Endpoint_IsConfigured(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline bool Endpoint_IsConfigured(void) { - return ((Endpoint_SelectedEndpointHandle->CTRL & USB_EP_TYPE_gm) ? true : false); + return ((USB_Endpoint_SelectedHandle->CTRL & USB_EP_TYPE_gm) ? true : false); } /** Returns a mask indicating which INTERRUPT type endpoints have interrupted - i.e. their @@ -430,7 +431,9 @@ static inline bool Endpoint_IsINReady(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline bool Endpoint_IsINReady(void) { - return ((Endpoint_SelectedEndpointHandle->STATUS & USB_EP_TRNCOMPL0_bm) ? true : false); + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint | ENDPOINT_DIR_IN); + + return ((USB_Endpoint_SelectedHandle->STATUS & USB_EP_TRNCOMPL0_bm) ? true : false); } /** Determines if the selected OUT endpoint has received new packet from the host. @@ -442,9 +445,11 @@ static inline bool Endpoint_IsOUTReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline bool Endpoint_IsOUTReceived(void) { - if (Endpoint_SelectedEndpointHandle->STATUS & USB_EP_TRNCOMPL0_bm) + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + + if (USB_Endpoint_SelectedHandle->STATUS & USB_EP_TRNCOMPL0_bm) { - Endpoint_SelectedEndpointAux->FIFOLength = Endpoint_SelectedEndpointHandle->CNT; + USB_Endpoint_SelectedFIFO->Length = USB_Endpoint_SelectedHandle->CNT; return true; } @@ -460,7 +465,15 @@ static inline bool Endpoint_IsSETUPReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline bool Endpoint_IsSETUPReceived(void) { - return ((Endpoint_SelectedEndpointHandle->STATUS & USB_EP_SETUP_bm) ? true : false); + 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; } /** Clears a received SETUP packet on the currently selected CONTROL type endpoint, freeing up the @@ -473,9 +486,8 @@ static inline void Endpoint_ClearSETUP(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_ClearSETUP(void) { - Endpoint_SelectedEndpointHandle->STATUS &= ~(USB_EP_SETUP_bm | USB_EP_BUSNACK0_bm); - - Endpoint_SelectedEndpointAux->FIFOPosition = 0; + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_SETUP_bm | USB_EP_BUSNACK0_bm); + USB_Endpoint_SelectedFIFO->Position = 0; } /** Sends an IN packet to the host on the currently selected endpoint, freeing up the endpoint for the @@ -486,10 +498,9 @@ static inline void Endpoint_ClearIN(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_ClearIN(void) { - Endpoint_SelectedEndpointHandle->CNT = Endpoint_SelectedEndpointAux->FIFOPosition; - Endpoint_SelectedEndpointHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm); - - Endpoint_SelectedEndpointAux->FIFOPosition = 0; + 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; } /** Acknowledges an OUT packet to the host on the currently selected endpoint, freeing up the endpoint @@ -500,9 +511,8 @@ static inline void Endpoint_ClearOUT(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_ClearOUT(void) { - Endpoint_SelectedEndpointHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm); - - Endpoint_SelectedEndpointAux->FIFOPosition = 0; + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedFIFO->Position = 0; } /** Stalls the current endpoint, indicating to the host that a logical problem occurred with the @@ -519,7 +529,7 @@ static inline void Endpoint_StallTransaction(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_StallTransaction(void) { - Endpoint_SelectedEndpointHandle->CTRL |= USB_EP_STALL_bm; + USB_Endpoint_SelectedHandle->CTRL |= USB_EP_STALL_bm; } /** Clears the STALL condition on the currently selected endpoint. @@ -529,7 +539,7 @@ static inline void Endpoint_ClearStall(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_ClearStall(void) { - Endpoint_SelectedEndpointHandle->CTRL &= ~USB_EP_STALL_bm; + USB_Endpoint_SelectedHandle->CTRL &= ~USB_EP_STALL_bm; } /** Determines if the currently selected endpoint is stalled, false otherwise. @@ -541,14 +551,14 @@ static inline bool Endpoint_IsStalled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline bool Endpoint_IsStalled(void) { - return ((Endpoint_SelectedEndpointHandle->CTRL & USB_EP_STALL_bm) ? true : false); + return ((USB_Endpoint_SelectedHandle->CTRL & USB_EP_STALL_bm) ? true : false); } /** Resets the data toggle of the currently selected endpoint. */ static inline void Endpoint_ResetDataToggle(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_ResetDataToggle(void) { - Endpoint_SelectedEndpointHandle->STATUS &= ~USB_EP_TOGGLE_bm; + USB_Endpoint_SelectedHandle->STATUS &= ~USB_EP_TOGGLE_bm; } /** Determines the currently selected endpoint's direction. @@ -558,7 +568,7 @@ static inline uint8_t Endpoint_GetEndpointDirection(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline uint8_t Endpoint_GetEndpointDirection(void) { - return ((Endpoint_SelectedEndpoint & ENDPOINT_DIR_IN) ? true : false); + return ((USB_Endpoint_SelectedEndpoint & ENDPOINT_DIR_IN) ? true : false); } /** Sets the direction of the currently selected endpoint. @@ -580,7 +590,7 @@ static inline uint8_t Endpoint_Read_8(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; static inline uint8_t Endpoint_Read_8(void) { - return Endpoint_SelectedEndpointAux->Data[Endpoint_SelectedEndpointAux->FIFOPosition++]; + return USB_Endpoint_SelectedFIFO->Data[USB_Endpoint_SelectedFIFO->Position++]; } /** Writes one byte to the currently selected endpoint's bank, for IN direction endpoints. @@ -592,7 +602,7 @@ static inline void Endpoint_Write_8(const uint8_t Data) ATTR_ALWAYS_INLINE; static inline void Endpoint_Write_8(const uint8_t Data) { - Endpoint_SelectedEndpointAux->Data[Endpoint_SelectedEndpointAux->FIFOPosition++] = Data; + USB_Endpoint_SelectedFIFO->Data[USB_Endpoint_SelectedFIFO->Position++] = Data; } /** Discards one byte from the currently selected endpoint's bank, for OUT direction endpoints. @@ -602,7 +612,7 @@ static inline void Endpoint_Discard_8(void) ATTR_ALWAYS_INLINE; static inline void Endpoint_Discard_8(void) { - Endpoint_SelectedEndpointAux->FIFOPosition++; + USB_Endpoint_SelectedFIFO->Position++; } /** Reads two bytes from the currently selected endpoint's bank in little endian format, for OUT |