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Convert over internal pseudo-function macros to true inline functions for added type-safety and compile-checking.

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This commit is contained in:
Dean Camera 2010-07-22 15:38:12 +00:00
parent 2461ae508c
commit 9b0e4b8356
21 changed files with 1689 additions and 1055 deletions
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710
LUFA/Drivers/USB/LowLevel/Pipe.h
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@ -105,6 +105,14 @@
#if !defined(__INCLUDE_FROM_USB_DRIVER)
#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
#endif
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
#if !defined(ENDPOINT_CONTROLEP) && !defined(__DOXYGEN__)
#define ENDPOINT_CONTROLEP 0
#endif
#endif
/* Public Interface - May be used in end-application: */
/* Macros: */
@ -195,319 +203,6 @@
*/
#define PIPE_EPDIR_MASK 0x80
/* Pseudo-Function Macros: */
#if defined(__DOXYGEN__)
/** Indicates the number of bytes currently stored in the current pipes's selected bank.
*
* \note The return width of this function may differ, depending on the maximum pipe bank size
* of the selected AVR model.
*
* \ingroup Group_PipeRW
*
* \return Total number of bytes in the currently selected Pipe's FIFO buffer.
*/
static inline uint16_t Pipe_BytesInPipe(void);
/** Returns the pipe address of the currently selected pipe. This is typically used to save the
* currently selected pipe number so that it can be restored after another pipe has been manipulated.
*
* \return Index of the currently selected pipe.
*/
static inline uint8_t Pipe_GetCurrentPipe(void);
/** Selects the given pipe number. Any pipe operations which do not require the pipe number to be
* indicated will operate on the currently selected pipe.
*
* \param[in] PipeNumber Index of the pipe to select.
*/
static inline void Pipe_SelectPipe(uint8_t PipeNumber);
/** Resets the desired pipe, including the pipe banks and flags.
*
* \param[in] PipeNumber Index of the pipe to reset.
*/
static inline void Pipe_ResetPipe(uint8_t PipeNumber);
/** Enables the currently selected pipe so that data can be sent and received through it to and from
* an attached device.
*
* \pre The currently selected pipe must first be configured properly via \ref Pipe_ConfigurePipe().
*/
static inline void Pipe_EnablePipe(void);
/** Disables the currently selected pipe so that data cannot be sent and received through it to and
* from an attached device.
*/
static inline void Pipe_DisablePipe(void);
/** Determines if the currently selected pipe is enabled, but not necessarily configured.
*
* \return Boolean True if the currently selected pipe is enabled, false otherwise.
*/
static inline bool Pipe_IsEnabled(void);
/** Gets the current pipe token, indicating the pipe's data direction and type.
*
* \return The current pipe token, as a PIPE_TOKEN_* mask.
*/
static inline uint8_t Pipe_GetPipeToken(void);
/** Sets the token for the currently selected pipe to one of the tokens specified by the PIPE_TOKEN_*
* masks. This can be used on CONTROL type pipes, to allow for bidirectional transfer of data during
* control requests, or on regular pipes to allow for half-duplex bidirectional data transfer to devices
* which have two endpoints of opposite direction sharing the same endpoint address within the device.
*
* \param[in] Token New pipe token to set the selected pipe to, as a PIPE_TOKEN_* mask.
*/
static inline void Pipe_SetPipeToken(uint8_t Token);
/** Configures the currently selected pipe to allow for an unlimited number of IN requests. */
static inline void Pipe_SetInfiniteINRequests(void);
/** Configures the currently selected pipe to only allow the specified number of IN requests to be
* accepted by the pipe before it is automatically frozen.
*
* \param[in] TotalINRequests Total number of IN requests that the pipe may receive before freezing.
*/
static inline void Pipe_SetFiniteINRequests(uint8_t TotalINRequests);
/** Determines if the currently selected pipe is configured.
*
* \return Boolean true if the selected pipe is configured, false otherwise.
*/
static inline bool Pipe_IsConfigured(void);
/** Retrieves the endpoint number of the endpoint within the attached device that the currently selected
* pipe is bound to.
*
* \return Endpoint number the currently selected pipe is bound to.
*/
static inline uint8_t Pipe_BoundEndpointNumber(void);
/** Sets the period between interrupts for an INTERRUPT type pipe to a specified number of milliseconds.
*
* \param[in] Milliseconds Number of milliseconds between each pipe poll.
*/
static inline void Pipe_SetInterruptPeriod(uint8_t Milliseconds);
/** Returns a mask indicating which pipe's interrupt periods have elapsed, indicating that the pipe should
* be serviced.
*
* \return Mask whose bits indicate which pipes have interrupted.
*/
static inline uint8_t Pipe_GetPipeInterrupts(void);
/** Determines if the specified pipe number has interrupted (valid only for INTERRUPT type
* pipes).
*
* \param[in] PipeNumber Index of the pipe whose interrupt flag should be tested.
*
* \return Boolean true if the specified pipe has interrupted, false otherwise.
*/
static inline bool Pipe_HasPipeInterrupted(uint8_t PipeNumber);
/** Unfreezes the selected pipe, allowing it to communicate with an attached device. */
static inline void Pipe_Unfreeze(void);
/** Freezes the selected pipe, preventing it from communicating with an attached device. */
static inline void Pipe_Freeze(void);
/** Determines if the currently selected pipe is frozen, and not able to accept data.
*
* \return Boolean true if the currently selected pipe is frozen, false otherwise.
*/
static inline bool Pipe_IsFrozen(void);
/** Clears the master pipe error flag. */
static inline void Pipe_ClearError(void);
/** Determines if the master pipe error flag is set for the currently selected pipe, indicating that
* some sort of hardware error has occurred on the pipe.
*
* \see \ref Pipe_GetErrorFlags() macro for information on retrieving the exact error flag.
*
* \return Boolean true if an error has occurred on the selected pipe, false otherwise.
*/
static inline bool Pipe_IsError(void);
/** Clears all the currently selected pipe's hardware error flags, but does not clear the master error
* flag for the pipe.
*/
static inline void Pipe_ClearErrorFlags(void);
/** Gets a mask of the hardware error flags which have occurred on the currently selected pipe. This
* value can then be masked against the PIPE_ERRORFLAG_* masks to determine what error has occurred.
*
* \return Mask comprising of PIPE_ERRORFLAG_* bits indicating what error has occurred on the selected pipe.
*/
static inline uint8_t Pipe_GetErrorFlags(void);
/** Determines if the currently selected pipe may be read from (if data is waiting in the pipe
* bank and the pipe is an IN direction, or if the bank is not yet full if the pipe is an OUT
* direction). This function will return false if an error has occurred in the pipe, or if the pipe
* is an IN direction and no packet (or an empty packet) has been received, or if the pipe is an OUT
* direction and the pipe bank is full.
*
* \note This function is not valid on CONTROL type pipes.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the currently selected pipe may be read from or written to, depending on its direction.
*/
static inline bool Pipe_IsReadWriteAllowed(void);
/** Determines if an IN request has been received on the currently selected pipe.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe has received an IN packet, false otherwise.
*/
static inline bool Pipe_IsINReceived(void);
/** Determines if the currently selected pipe is ready to send an OUT request.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe is ready for an OUT packet, false otherwise.
*/
static inline bool Pipe_IsOUTReady(void);
/** Determines if no SETUP request is currently being sent to the attached device on the selected
* CONTROL type pipe.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe is ready for a SETUP packet, false otherwise.
*/
static inline bool Pipe_IsSETUPSent(void);
/** Sends the currently selected CONTROL type pipe's contents to the device as a SETUP packet.
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearSETUP(void);
/** Acknowledges the reception of a setup IN request from the attached device on the currently selected
* pipe, freeing the bank ready for the next packet.
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearIN(void);
/** Sends the currently selected pipe's contents to the device as an OUT packet on the selected pipe, freeing
* the bank ready for the next packet.
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearOUT(void);
/** Determines if the device sent a NAK (Negative Acknowledge) in response to the last sent packet on
* the currently selected pipe. This occurs when the host sends a packet to the device, but the device
* is not currently ready to handle the packet (i.e. its endpoint banks are full). Once a NAK has been
* received, it must be cleared using \ref Pipe_ClearNAKReceived() before the previous (or any other) packet
* can be re-sent.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if an NAK has been received on the current pipe, false otherwise.
*/
static inline bool Pipe_IsNAKReceived(void);
/** Clears the NAK condition on the currently selected pipe.
*
* \ingroup Group_PipePacketManagement
*
* \see \ref Pipe_IsNAKReceived() for more details.
*/
static inline void Pipe_ClearNAKReceived(void);
/** Determines if the currently selected pipe has had the STALL condition set by the attached device.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe has been stalled by the attached device, false otherwise.
*/
static inline bool Pipe_IsStalled(void);
/** Clears the STALL condition detection flag on the currently selected pipe, but does not clear the
* STALL condition itself (this must be done via a ClearFeature control request to the device).
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearStall(void);
#else
#define Pipe_BytesInPipe() UPBCX
#define Pipe_GetCurrentPipe() (UPNUM & PIPE_PIPENUM_MASK)
#define Pipe_SelectPipe(pipenum) MACROS{ UPNUM = (pipenum); }MACROE
#define Pipe_ResetPipe(pipenum) MACROS{ UPRST = (1 << (pipenum)); UPRST = 0; }MACROE
#define Pipe_EnablePipe() MACROS{ UPCONX |= (1 << PEN); }MACROE
#define Pipe_DisablePipe() MACROS{ UPCONX &= ~(1 << PEN); }MACROE
#define Pipe_IsEnabled() ((UPCONX & (1 << PEN)) ? true : false)
#define Pipe_GetPipeToken() (UPCFG0X & PIPE_TOKEN_MASK)
#define Pipe_SetPipeToken(token) MACROS{ UPCFG0X = ((UPCFG0X & ~PIPE_TOKEN_MASK) | (token)); }MACROE
#define Pipe_SetInfiniteINRequests() MACROS{ UPCONX |= (1 << INMODE); }MACROE
#define Pipe_SetFiniteINRequests(n) MACROS{ UPCONX &= ~(1 << INMODE); UPINRQX = (n); }MACROE
#define Pipe_IsConfigured() ((UPSTAX & (1 << CFGOK)) ? true : false)
#define Pipe_BoundEndpointNumber() ((UPCFG0X >> PEPNUM0) & PIPE_EPNUM_MASK)
#define Pipe_SetInterruptPeriod(ms) MACROS{ UPCFG2X = (ms); }MACROE
#define Pipe_GetPipeInterrupts() UPINT
#define Pipe_HasPipeInterrupted(n) ((UPINT & (1 << (n))) ? true : false)
#define Pipe_Unfreeze() MACROS{ UPCONX &= ~(1 << PFREEZE); }MACROE
#define Pipe_Freeze() MACROS{ UPCONX |= (1 << PFREEZE); }MACROE
#define Pipe_IsFrozen() ((UPCONX & (1 << PFREEZE)) ? true : false)
#define Pipe_ClearError() MACROS{ UPINTX &= ~(1 << PERRI); }MACROE
#define Pipe_IsError() ((UPINTX & (1 << PERRI)) ? true : false)
#define Pipe_ClearErrorFlags() MACROS{ UPERRX = 0; }MACROE
#define Pipe_GetErrorFlags() ((UPERRX & (PIPE_ERRORFLAG_CRC16 | PIPE_ERRORFLAG_TIMEOUT | \
PIPE_ERRORFLAG_PID | PIPE_ERRORFLAG_DATAPID | \
PIPE_ERRORFLAG_DATATGL)) | \
(UPSTAX & PIPE_ERRORFLAG_OVERFLOW | PIPE_ERRORFLAG_UNDERFLOW))
#define Pipe_IsReadWriteAllowed() ((UPINTX & (1 << RWAL)) ? true : false)
#define Pipe_IsINReceived() ((UPINTX & (1 << RXINI)) ? true : false)
#define Pipe_IsOUTReady() ((UPINTX & (1 << TXOUTI)) ? true : false)
#define Pipe_IsSETUPSent() ((UPINTX & (1 << TXSTPI)) ? true : false)
#define Pipe_ClearIN() MACROS{ UPINTX &= ~((1 << RXINI) | (1 << FIFOCON)); }MACROE
#define Pipe_ClearOUT() MACROS{ UPINTX &= ~((1 << TXOUTI) | (1 << FIFOCON)); }MACROE
#define Pipe_ClearSETUP() MACROS{ UPINTX &= ~((1 << TXSTPI) | (1 << FIFOCON)); }MACROE
#define Pipe_IsNAKReceived() ((UPINTX & (1 << NAKEDI)) ? true : false)
#define Pipe_ClearNAKReceived() MACROS{ UPINTX &= ~(1 << NAKEDI); }MACROE
#define Pipe_IsStalled() ((UPINTX & (1 << RXSTALLI)) ? true : false)
#define Pipe_ClearStall() MACROS{ UPINTX &= ~(1 << RXSTALLI); }MACROE
#endif
/* Enums: */
/** Enum for the possible error return codes of the Pipe_WaitUntilReady function.
*
@ -545,6 +240,386 @@
};
/* Inline Functions: */
/** Indicates the number of bytes currently stored in the current pipes's selected bank.
*
* \note The return width of this function may differ, depending on the maximum pipe bank size
* of the selected AVR model.
*
* \ingroup Group_PipeRW
*
* \return Total number of bytes in the currently selected Pipe's FIFO buffer.
*/
static inline uint16_t Pipe_BytesInPipe(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint16_t Pipe_BytesInPipe(void)
{
return UPBCX;
}
/** Returns the pipe address of the currently selected pipe. This is typically used to save the
* currently selected pipe number so that it can be restored after another pipe has been manipulated.
*
* \return Index of the currently selected pipe.
*/
static inline uint8_t Pipe_GetCurrentPipe(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint8_t Pipe_GetCurrentPipe(void)
{
return (UPNUM & PIPE_PIPENUM_MASK);
}
/** Selects the given pipe number. Any pipe operations which do not require the pipe number to be
* indicated will operate on the currently selected pipe.
*
* \param[in] PipeNumber Index of the pipe to select.
*/
static inline void Pipe_SelectPipe(const uint8_t PipeNumber) ATTR_ALWAYS_INLINE;
static inline void Pipe_SelectPipe(const uint8_t PipeNumber)
{
UPNUM = PipeNumber;
}
/** Resets the desired pipe, including the pipe banks and flags.
*
* \param[in] PipeNumber Index of the pipe to reset.
*/
static inline void Pipe_ResetPipe(const uint8_t PipeNumber) ATTR_ALWAYS_INLINE;
static inline void Pipe_ResetPipe(const uint8_t PipeNumber)
{
UPRST = (1 << PipeNumber);
UPRST = 0;
}
/** Enables the currently selected pipe so that data can be sent and received through it to and from
* an attached device.
*
* \pre The currently selected pipe must first be configured properly via \ref Pipe_ConfigurePipe().
*/
static inline void Pipe_EnablePipe(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_EnablePipe(void)
{
UPCONX |= (1 << PEN);
}
/** Disables the currently selected pipe so that data cannot be sent and received through it to and
* from an attached device.
*/
static inline void Pipe_DisablePipe(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_DisablePipe(void)
{
UPCONX &= ~(1 << PEN);
}
/** Determines if the currently selected pipe is enabled, but not necessarily configured.
*
* \return Boolean True if the currently selected pipe is enabled, false otherwise.
*/
static inline bool Pipe_IsEnabled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsEnabled(void)
{
return ((UPCONX & (1 << PEN)) ? true : false);
}
/** Gets the current pipe token, indicating the pipe's data direction and type.
*
* \return The current pipe token, as a PIPE_TOKEN_* mask.
*/
static inline uint8_t Pipe_GetPipeToken(void) ATTR_ALWAYS_INLINE;
static inline uint8_t Pipe_GetPipeToken(void)
{
return (UPCFG0X & (0x03 << PTOKEN0));
}
/** Sets the token for the currently selected pipe to one of the tokens specified by the PIPE_TOKEN_*
* masks. This can be used on CONTROL type pipes, to allow for bidirectional transfer of data during
* control requests, or on regular pipes to allow for half-duplex bidirectional data transfer to devices
* which have two endpoints of opposite direction sharing the same endpoint address within the device.
*
* \param[in] Token New pipe token to set the selected pipe to, as a PIPE_TOKEN_* mask.
*/
static inline void Pipe_SetPipeToken(const uint8_t Token) ATTR_ALWAYS_INLINE;
static inline void Pipe_SetPipeToken(const uint8_t Token)
{
UPCFG0X = ((UPCFG0X & ~(0x03 << PTOKEN0)) | Token);
}
/** Configures the currently selected pipe to allow for an unlimited number of IN requests. */
static inline void Pipe_SetInfiniteINRequests(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_SetInfiniteINRequests(void)
{
UPCONX |= (1 << INMODE);
}
/** Configures the currently selected pipe to only allow the specified number of IN requests to be
* accepted by the pipe before it is automatically frozen.
*
* \param[in] TotalINRequests Total number of IN requests that the pipe may receive before freezing.
*/
static inline void Pipe_SetFiniteINRequests(const uint8_t TotalINRequests) ATTR_ALWAYS_INLINE;
static inline void Pipe_SetFiniteINRequests(const uint8_t TotalINRequests)
{
UPCONX &= ~(1 << INMODE);
UPINRQX = TotalINRequests;
}
/** Determines if the currently selected pipe is configured.
*
* \return Boolean true if the selected pipe is configured, false otherwise.
*/
static inline bool Pipe_IsConfigured(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsConfigured(void)
{
return ((UPSTAX & (1 << CFGOK)) ? true : false);
}
/** Retrieves the endpoint number of the endpoint within the attached device that the currently selected
* pipe is bound to.
*
* \return Endpoint number the currently selected pipe is bound to.
*/
static inline uint8_t Pipe_BoundEndpointNumber(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint8_t Pipe_BoundEndpointNumber(void)
{
return ((UPCFG0X >> PEPNUM0) & PIPE_EPNUM_MASK);
}
/** Sets the period between interrupts for an INTERRUPT type pipe to a specified number of milliseconds.
*
* \param[in] Milliseconds Number of milliseconds between each pipe poll.
*/
static inline void Pipe_SetInterruptPeriod(const uint8_t Milliseconds) ATTR_ALWAYS_INLINE;
static inline void Pipe_SetInterruptPeriod(const uint8_t Milliseconds)
{
UPCFG2X = Milliseconds;
}
/** Returns a mask indicating which pipe's interrupt periods have elapsed, indicating that the pipe should
* be serviced.
*
* \return Mask whose bits indicate which pipes have interrupted.
*/
static inline uint8_t Pipe_GetPipeInterrupts(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint8_t Pipe_GetPipeInterrupts(void)
{
return UPINT;
}
/** Determines if the specified pipe number has interrupted (valid only for INTERRUPT type
* pipes).
*
* \param[in] PipeNumber Index of the pipe whose interrupt flag should be tested.
*
* \return Boolean true if the specified pipe has interrupted, false otherwise.
*/
static inline bool Pipe_HasPipeInterrupted(const uint8_t PipeNumber) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_HasPipeInterrupted(const uint8_t PipeNumber)
{
return ((UPINT & (1 << PipeNumber)) ? true : false);
}
/** Unfreezes the selected pipe, allowing it to communicate with an attached device. */
static inline void Pipe_Unfreeze(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_Unfreeze(void)
{
UPCONX &= ~(1 << PFREEZE);
}
/** Freezes the selected pipe, preventing it from communicating with an attached device. */
static inline void Pipe_Freeze(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_Freeze(void)
{
UPCONX |= (1 << PFREEZE);
}
/** Determines if the currently selected pipe is frozen, and not able to accept data.
*
* \return Boolean true if the currently selected pipe is frozen, false otherwise.
*/
static inline bool Pipe_IsFrozen(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsFrozen(void)
{
return ((UPCONX & (1 << PFREEZE)) ? true : false);
}
/** Clears the master pipe error flag. */
static inline void Pipe_ClearError(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearError(void)
{
UPINTX &= ~(1 << PERRI);
}
/** Determines if the master pipe error flag is set for the currently selected pipe, indicating that
* some sort of hardware error has occurred on the pipe.
*
* \see \ref Pipe_GetErrorFlags() macro for information on retrieving the exact error flag.
*
* \return Boolean true if an error has occurred on the selected pipe, false otherwise.
*/
static inline bool Pipe_IsError(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsError(void)
{
return ((UPINTX & (1 << PERRI)) ? true : false);
}
/** Clears all the currently selected pipe's hardware error flags, but does not clear the master error
* flag for the pipe.
*/
static inline void Pipe_ClearErrorFlags(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearErrorFlags(void)
{
UPERRX = 0;
}
/** Gets a mask of the hardware error flags which have occurred on the currently selected pipe. This
* value can then be masked against the PIPE_ERRORFLAG_* masks to determine what error has occurred.
*
* \return Mask comprising of PIPE_ERRORFLAG_* bits indicating what error has occurred on the selected pipe.
*/
static inline uint8_t Pipe_GetErrorFlags(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint8_t Pipe_GetErrorFlags(void)
{
return ((UPERRX & (PIPE_ERRORFLAG_CRC16 | PIPE_ERRORFLAG_TIMEOUT |
PIPE_ERRORFLAG_PID | PIPE_ERRORFLAG_DATAPID |
PIPE_ERRORFLAG_DATATGL)) |
(UPSTAX & (PIPE_ERRORFLAG_OVERFLOW | PIPE_ERRORFLAG_UNDERFLOW)));
}
/** Determines if the currently selected pipe may be read from (if data is waiting in the pipe
* bank and the pipe is an IN direction, or if the bank is not yet full if the pipe is an OUT
* direction). This function will return false if an error has occurred in the pipe, or if the pipe
* is an IN direction and no packet (or an empty packet) has been received, or if the pipe is an OUT
* direction and the pipe bank is full.
*
* \note This function is not valid on CONTROL type pipes.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the currently selected pipe may be read from or written to, depending on its direction.
*/
static inline bool Pipe_IsReadWriteAllowed(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsReadWriteAllowed(void)
{
return ((UPINTX & (1 << RWAL)) ? true : false);
}
/** Determines if an IN request has been received on the currently selected pipe.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe has received an IN packet, false otherwise.
*/
static inline bool Pipe_IsINReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsINReceived(void)
{
return ((UPINTX & (1 << RXINI)) ? true : false);
}
/** Determines if the currently selected pipe is ready to send an OUT request.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe is ready for an OUT packet, false otherwise.
*/
static inline bool Pipe_IsOUTReady(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsOUTReady(void)
{
return ((UPINTX & (1 << TXOUTI)) ? true : false);
}
/** Determines if no SETUP request is currently being sent to the attached device on the selected
* CONTROL type pipe.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe is ready for a SETUP packet, false otherwise.
*/
static inline bool Pipe_IsSETUPSent(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsSETUPSent(void)
{
return ((UPINTX & (1 << TXSTPI)) ? true : false);
}
/** Sends the currently selected CONTROL type pipe's contents to the device as a SETUP packet.
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearSETUP(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearSETUP(void)
{
UPINTX &= ~((1 << TXSTPI) | (1 << FIFOCON));
}
/** Acknowledges the reception of a setup IN request from the attached device on the currently selected
* pipe, freeing the bank ready for the next packet.
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearIN(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearIN(void)
{
UPINTX &= ~((1 << RXINI) | (1 << FIFOCON));
}
/** Sends the currently selected pipe's contents to the device as an OUT packet on the selected pipe, freeing
* the bank ready for the next packet.
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearOUT(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearOUT(void)
{
UPINTX &= ~((1 << TXOUTI) | (1 << FIFOCON));
}
/** Determines if the device sent a NAK (Negative Acknowledge) in response to the last sent packet on
* the currently selected pipe. This occurs when the host sends a packet to the device, but the device
* is not currently ready to handle the packet (i.e. its endpoint banks are full). Once a NAK has been
* received, it must be cleared using \ref Pipe_ClearNAKReceived() before the previous (or any other) packet
* can be re-sent.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if an NAK has been received on the current pipe, false otherwise.
*/
static inline bool Pipe_IsNAKReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsNAKReceived(void)
{
return ((UPINTX & (1 << NAKEDI)) ? true : false);
}
/** Clears the NAK condition on the currently selected pipe.
*
* \ingroup Group_PipePacketManagement
*
* \see \ref Pipe_IsNAKReceived() for more details.
*/
static inline void Pipe_ClearNAKReceived(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearNAKReceived(void)
{
UPINTX &= ~(1 << NAKEDI);
}
/** Determines if the currently selected pipe has had the STALL condition set by the attached device.
*
* \ingroup Group_PipePacketManagement
*
* \return Boolean true if the current pipe has been stalled by the attached device, false otherwise.
*/
static inline bool Pipe_IsStalled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline bool Pipe_IsStalled(void)
{
return ((UPINTX & (1 << RXSTALLI)) ? true : false);
}
/** Clears the STALL condition detection flag on the currently selected pipe, but does not clear the
* STALL condition itself (this must be done via a ClearFeature control request to the device).
*
* \ingroup Group_PipePacketManagement
*/
static inline void Pipe_ClearStall(void) ATTR_ALWAYS_INLINE;
static inline void Pipe_ClearStall(void)
{
UPINTX &= ~(1 << RXSTALLI);
}
/** Reads one byte from the currently selected pipe's bank, for OUT direction pipes.
*
* \ingroup Group_PipePrimitiveRW
@ -1046,14 +1121,7 @@
__CALLBACK_PARAM) ATTR_NON_NULL_PTR_ARG(1);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
#define PIPE_TOKEN_MASK (0x03 << PTOKEN0)
#if !defined(ENDPOINT_CONTROLEP)
#define ENDPOINT_CONTROLEP 0
#endif
#if !defined(__DOXYGEN__)
/* Function Prototypes: */
void Pipe_ClearPipes(void);