diff options
author | Dean Camera <dean@fourwalledcubicle.com> | 2011-07-15 08:46:08 +0000 |
---|---|---|
committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-07-15 08:46:08 +0000 |
commit | 0c2ad9eb349e1a5676468af3b407329dde4a53b4 (patch) | |
tree | b3e3ee89775704f827926613b9924d927e06acd5 /LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h | |
parent | a36012fc4b057dc1fe96f75a005cd8ba017a6a71 (diff) | |
download | lufa-0c2ad9eb349e1a5676468af3b407329dde4a53b4.tar.gz lufa-0c2ad9eb349e1a5676468af3b407329dde4a53b4.tar.bz2 lufa-0c2ad9eb349e1a5676468af3b407329dde4a53b4.zip |
Add missing SVN eol-style property to files where it was missing.
Diffstat (limited to 'LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h')
-rw-r--r-- | LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h | 1856 |
1 files changed, 928 insertions, 928 deletions
diff --git a/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h b/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h index 25a4586d8..f8700383c 100644 --- a/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h +++ b/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h @@ -1,928 +1,928 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- The author disclaim all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- * \brief USB Pipe definitions for the AVR32 UC3 microcontrollers.
- * \copydetails Group_PipeManagement_UC3
- *
- * \note This file should not be included directly. It is automatically included as needed by the USB driver
- * dispatch header located in LUFA/Drivers/USB/USB.h.
- */
-
-/** \ingroup Group_PipeRW
- * \defgroup Group_PipeRW_UC3 Pipe Data Reading and Writing (UC3)
- * \brief Pipe data read/write definitions for the Atmel AVR32 UC3 architecture.
- *
- * Functions, macros, variables, enums and types related to data reading and writing from and to pipes.
- */
-
-/** \ingroup Group_PipePrimitiveRW
- * \defgroup Group_PipePrimitiveRW_UC3 Read/Write of Primitive Data Types (UC3)
- * \brief Pipe primitive data read/write definitions for the Atmel AVR32 UC3 architecture.
- *
- * Functions, macros, variables, enums and types related to data reading and writing of primitive data types
- * from and to pipes.
- */
-
-/** \ingroup Group_PipePacketManagement
- * \defgroup Group_PipePacketManagement_UC3 Pipe Packet Management (UC3)
- * \brief Pipe packet management definitions for the Atmel AVR32 UC3 architecture.
- *
- * Functions, macros, variables, enums and types related to packet management of pipes.
- */
-
-/** \ingroup Group_PipeControlReq
- * \defgroup Group_PipeControlReq_UC3 Pipe Control Request Management (UC3)
- * \brief Pipe control request management definitions for the Atmel AVR32 UC3 architecture.
- *
- * Module for host mode request processing. This module allows for the transmission of standard, class and
- * vendor control requests to the default control endpoint of an attached device while in host mode.
- *
- * \see Chapter 9 of the USB 2.0 specification.
- */
-
-/** \ingroup Group_PipeManagement
- * \defgroup Group_PipeManagement_UC3 Pipe Management (UC3)
- * \brief Pipe management definitions for the Atmel AVR32 UC3 architecture.
- *
- * This module contains functions, macros and enums related to pipe management when in USB Host mode. This
- * module contains the pipe management macros, as well as pipe interrupt and data send/receive functions
- * for various data types.
- *
- * @{
- */
-
-#ifndef __PIPE_UC3_H__
-#define __PIPE_UC3_H__
-
- /* Includes: */
- #include "../../../../Common/Common.h"
- #include "../USBTask.h"
-
- /* Enable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
- /* Preprocessor Checks: */
- #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: */
- #define PIPE_HSB_ADDRESS_SPACE_SIZE (64 * 1024UL)
-
- /* External Variables: */
- extern volatile uint32_t USB_SelectedPipe;
- extern volatile uint8_t* USB_PipeFIFOPos[];
- #endif
-
- /* Public Interface - May be used in end-application: */
- /* Macros: */
- /** \name Pipe Error Flag Masks */
- //@{
- /** Mask for \ref Pipe_GetErrorFlags(), indicating that an overflow error occurred in the pipe on the received data. */
- #define PIPE_ERRORFLAG_OVERFLOW (AVR32_USBB_UPSTA0_OVERFI_MASK << 8)
-
- /** Mask for \ref Pipe_GetErrorFlags(), indicating that a CRC error occurred in the pipe on the received data. */
- #define PIPE_ERRORFLAG_CRC16 AVR32_USBB_UPERR0_CRC16_MASK
-
- /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware timeout error occurred in the pipe. */
- #define PIPE_ERRORFLAG_TIMEOUT AVR32_USBB_UPERR0_TIMEOUT_MASK
-
- /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware PID error occurred in the pipe. */
- #define PIPE_ERRORFLAG_PID AVR32_USBB_UPERR0_PID_MASK
-
- /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware data PID error occurred in the pipe. */
- #define PIPE_ERRORFLAG_DATAPID AVR32_USBB_UPERR0_DATAPID_MASK
-
- /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware data toggle error occurred in the pipe. */
- #define PIPE_ERRORFLAG_DATATGL AVR32_USBB_UPERR0_DATATGL_MASK
- //@}
-
- /** \name Pipe Token Masks */
- //@{
- /** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a SETUP token (for CONTROL type pipes),
- * which will trigger a control request on the attached device when data is written to the pipe.
- */
- #define PIPE_TOKEN_SETUP AVR32_USBB_UPCFG0_PTOKEN_SETUP
-
- /** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a IN token (for non-CONTROL type pipes),
- * indicating that the pipe data will flow from device to host.
- */
- #define PIPE_TOKEN_IN AVR32_USBB_UPCFG0_PTOKEN_IN
-
- /** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a OUT token (for non-CONTROL type pipes),
- * indicating that the pipe data will flow from host to device.
- */
- #define PIPE_TOKEN_OUT AVR32_USBB_UPCFG0_PTOKEN_OUT
- //@}
-
- /** \name Pipe Bank Mode Masks */
- //@{
- /** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the pipe
- * should have one single bank, which requires less USB FIFO memory but results in slower transfers as
- * only one USB device (the AVR or the attached device) can access the pipe's bank at the one time.
- */
- #define PIPE_BANK_SINGLE AVR32_USBB_UPCFG0_PBK_SINGLE
-
- /** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the pipe
- * should have two banks, which requires more USB FIFO memory but results in faster transfers as one
- * USB device (the AVR or the attached device) can access one bank while the other accesses the second
- * bank.
- */
- #define PIPE_BANK_DOUBLE AVR32_USBB_UPCFG0_PBK_DOUBLE
-
- #if defined(USB_SERIES_UC3A3_AVR32) || defined(USB_SERIES_UC3A4_AVR32) || defined(__DOXYGEN__)
- /** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the
- * pipe should have three banks, which requires more USB FIFO memory but results in faster transfers
- * as one USB device (the AVR or the attached device) can access one bank while the other accesses the
- * remaining banks.
- *
- * \note Not available on all AVR models.
- */
- #define PIPE_BANK_TRIPLE AVR32_USBB_UPCFG0_PBK_TRIPLE
- #endif
- //@}
-
- /** Default size of the default control pipe's bank, until altered by the Endpoint0Size value
- * in the device descriptor of the attached device.
- */
- #define PIPE_CONTROLPIPE_DEFAULT_SIZE 64
-
- #if defined(USB_SERIES_UC3A3_AVR32) || defined(USB_SERIES_UC3A4_AVR32) || defined(__DOXYGEN__)
- /** Total number of pipes (including the default control pipe at address 0) which may be used in
- * the device.
- */
- #define PIPE_TOTAL_PIPES 8
- #else
- #define PIPE_TOTAL_PIPES 7
- #endif
-
- /** Size in bytes of the largest pipe bank size possible in the device. Not all banks on each AVR
- * model supports the largest bank size possible on the device; different pipe numbers support
- * different maximum bank sizes. This value reflects the largest possible bank of any pipe on the
- * currently selected UC3 AVR model.
- */
- #define PIPE_MAX_SIZE 256
-
- /* Enums: */
- /** Enum for the possible error return codes of the \ref Pipe_WaitUntilReady() function.
- *
- * \ingroup Group_PipeRW_UC3
- */
- enum Pipe_WaitUntilReady_ErrorCodes_t
- {
- PIPE_READYWAIT_NoError = 0, /**< Pipe ready for next packet, no error. */
- PIPE_READYWAIT_PipeStalled = 1, /**< The device stalled the pipe while waiting. */
- PIPE_READYWAIT_DeviceDisconnected = 2, /**< Device was disconnected from the host while waiting. */
- PIPE_READYWAIT_Timeout = 3, /**< The device failed to accept or send the next packet
- * within the software timeout period set by the
- * \ref USB_STREAM_TIMEOUT_MS macro.
- */
- };
-
- /* 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_UC3
- *
- * \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 (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].pbyct;
- }
-
- /** 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 USB_SelectedPipe;
- }
-
- /** 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)
- {
- USB_SelectedPipe = 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)
- {
- AVR32_USBB.uprst |= (AVR32_USBB_PRST0_MASK << PipeNumber);
- AVR32_USBB.uprst &= ~(AVR32_USBB_PRST0_MASK << PipeNumber);
- USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE];
- }
-
- /** 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)
- {
- AVR32_USBB.uprst |= (AVR32_USBB_PEN0_MASK << USB_SelectedPipe);
- }
-
- /** 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)
- {
- AVR32_USBB.uprst &= ~(AVR32_USBB_PEN0_MASK << USB_SelectedPipe);
- }
-
- /** Determines if the currently selected pipe is enabled, but not necessarily configured.
- *
- * \return Boolean \c true if the currently selected pipe is enabled, \c false otherwise.
- */
- static inline bool Pipe_IsEnabled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsEnabled(void)
- {
- return ((AVR32_USBB.uprst & (AVR32_USBB_PEN0_MASK << USB_SelectedPipe)) ? true : false);
- }
-
- /** Gets the current pipe token, indicating the pipe's data direction and type.
- *
- * \return The current pipe token, as a \c PIPE_TOKEN_* mask.
- */
- static inline uint8_t Pipe_GetPipeToken(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint8_t Pipe_GetPipeToken(void)
- {
- return (&AVR32_USBB.UPCFG0)[USB_SelectedPipe].ptoken;
- }
-
- /** Sets the token for the currently selected pipe to one of the tokens specified by the \c 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 \c PIPE_TOKEN_* mask.
- */
- static inline void Pipe_SetPipeToken(const uint8_t Token) ATTR_ALWAYS_INLINE;
- static inline void Pipe_SetPipeToken(const uint8_t Token)
- {
- (&AVR32_USBB.UPCFG0)[USB_SelectedPipe].ptoken = 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)
- {
- (&AVR32_USBB.UPINRQ0)[USB_SelectedPipe].inmode = true;
- }
-
- /** 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)
- {
- (&AVR32_USBB.UPINRQ0)[USB_SelectedPipe].inmode = false;
- (&AVR32_USBB.UPINRQ0)[USB_SelectedPipe].inrq = TotalINRequests;
- }
-
- /** Determines if the currently selected pipe is configured.
- *
- * \return Boolean \c true if the selected pipe is configured, \c false otherwise.
- */
- static inline bool Pipe_IsConfigured(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsConfigured(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].cfgok;
- }
-
- /** Retrieves the endpoint address of the endpoint within the attached device that the currently selected
- * pipe is bound to.
- *
- * \return Endpoint address the currently selected pipe is bound to.
- */
- static inline uint8_t Pipe_GetBoundEndpointAddress(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint8_t Pipe_GetBoundEndpointAddress(void)
- {
- return ((&AVR32_USBB.UPCFG0)[USB_SelectedPipe].pepnum |
- ((Pipe_GetPipeToken() == PIPE_TOKEN_IN) ? PIPE_EPDIR_MASK : 0));
- }
-
- /** 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)
- {
- (&AVR32_USBB.UPCFG0)[USB_SelectedPipe].intfrq = 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 ((AVR32_USBB.uhint & (AVR32_USBB_P6INT_MASK | AVR32_USBB_P5INT_MASK |
- AVR32_USBB_P4INT_MASK | AVR32_USBB_P3INT_MASK |
- AVR32_USBB_P2INT_MASK | AVR32_USBB_P1INT_MASK |
- AVR32_USBB_P0INT_MASK)) >> AVR32_USBB_P0INT_OFFSET);
- }
-
- /** 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 \c true if the specified pipe has interrupted, \c 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 ((AVR32_USBB.uhint & (AVR32_USBB_P0INTES_MASK << USB_SelectedPipe)) ? 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)
- {
- (&AVR32_USBB.UPCON0CLR)[USB_SelectedPipe].pfreezec = true;
- }
-
- /** 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)
- {
- (&AVR32_USBB.UPCON0SET)[USB_SelectedPipe].pfreezes = true;
- }
-
- /** Determines if the currently selected pipe is frozen, and not able to accept data.
- *
- * \return Boolean \c true if the currently selected pipe is frozen, \c false otherwise.
- */
- static inline bool Pipe_IsFrozen(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsFrozen(void)
- {
- return (((&AVR32_USBB.UPCON0)[USB_SelectedPipe].pfreeze) ? true : false);
- }
-
- /** Clears the error flags for the currently selected pipe. */
- static inline void Pipe_ClearError(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_ClearError(void)
- {
- (&AVR32_USBB.uperr0)[USB_SelectedPipe] = 0;
- (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].overfic = true;
- }
-
- /** 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 \c true if an error has occurred on the selected pipe, \c false otherwise.
- */
- static inline bool Pipe_IsError(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsError(void)
- {
- return (((&AVR32_USBB.upsta0)[USB_SelectedPipe] &
- (AVR32_USBB_PERRI_MASK | AVR32_USBB_OVERFI_MASK)) ? true : false);
- }
-
- /** Gets a mask of the hardware error flags which have occurred on the currently selected pipe. This
- * value can then be masked against the \c PIPE_ERRORFLAG_* masks to determine what error has occurred.
- *
- * \return Mask comprising of \c 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 (((&AVR32_USBB.uperr0)[USB_SelectedPipe] &
- (PIPE_ERRORFLAG_CRC16 | PIPE_ERRORFLAG_TIMEOUT |
- PIPE_ERRORFLAG_PID | PIPE_ERRORFLAG_DATAPID |
- PIPE_ERRORFLAG_DATATGL)) |
- (((&AVR32_USBB.upsta0)[USB_SelectedPipe] << 8) &
- PIPE_ERRORFLAG_OVERFLOW));
- }
-
- /** Retrieves the number of busy banks in the currently selected pipe, which have been queued for
- * transmission via the \ref Pipe_ClearOUT() command, or are awaiting acknowledgement via the
- * \ref Pipe_ClearIN() command.
- *
- * \ingroup Group_PipePacketManagement_UC3
- *
- * \return Total number of busy banks in the selected pipe.
- */
- static inline uint8_t Pipe_GetBusyBanks(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint8_t Pipe_GetBusyBanks(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].nbusybk;
- }
-
- /** 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_UC3
- *
- * \return Boolean \c 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 (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].rwall;
- }
-
- /** Determines if a packet has been received on the currently selected IN pipe from the attached device.
- *
- * \ingroup Group_PipePacketManagement_UC3
- *
- * \return Boolean \c true if the current pipe has received an IN packet, \c false otherwise.
- */
- static inline bool Pipe_IsINReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsINReceived(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].rxini;
- }
-
- /** Determines if the currently selected OUT pipe is ready to send an OUT packet to the attached device.
- *
- * \ingroup Group_PipePacketManagement_UC3
- *
- * \return Boolean \c true if the current pipe is ready for an OUT packet, \c false otherwise.
- */
- static inline bool Pipe_IsOUTReady(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsOUTReady(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].txouti;
- }
-
- /** Determines if no SETUP request is currently being sent to the attached device on the selected
- * CONTROL type pipe.
- *
- * \ingroup Group_PipePacketManagement_UC3
- *
- * \return Boolean \c true if the current pipe is ready for a SETUP packet, \c false otherwise.
- */
- static inline bool Pipe_IsSETUPSent(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsSETUPSent(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].txstpi;
- }
-
- /** Sends the currently selected CONTROL type pipe's contents to the device as a SETUP packet.
- *
- * \ingroup Group_PipePacketManagement_UC3
- */
- static inline void Pipe_ClearSETUP(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_ClearSETUP(void)
- {
- (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].txstpic = true;
- USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE];
- }
-
- /** 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_UC3
- */
- static inline void Pipe_ClearIN(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_ClearIN(void)
- {
- (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].rxinic = true;
- (&AVR32_USBB.UPCON0CLR)[USB_SelectedPipe].fifoconc = true;
- USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE];
- }
-
- /** 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_UC3
- */
- static inline void Pipe_ClearOUT(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_ClearOUT(void)
- {
- (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].txoutic = true;
- (&AVR32_USBB.UPCON0CLR)[USB_SelectedPipe].fifoconc = true;
- USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE];
- }
-
- /** 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_UC3
- *
- * \return Boolean \c true if an NAK has been received on the current pipe, \c false otherwise.
- */
- static inline bool Pipe_IsNAKReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsNAKReceived(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].nakedi;
- }
-
- /** Clears the NAK condition on the currently selected pipe.
- *
- * \ingroup Group_PipePacketManagement_UC3
- *
- * \see \ref Pipe_IsNAKReceived() for more details.
- */
- static inline void Pipe_ClearNAKReceived(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_ClearNAKReceived(void)
- {
- (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].nakedic = true;
- }
-
- /** Determines if the currently selected pipe has had the STALL condition set by the attached device.
- *
- * \ingroup Group_PipePacketManagement_UC3
- *
- * \return Boolean \c true if the current pipe has been stalled by the attached device, \c false otherwise.
- */
- static inline bool Pipe_IsStalled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline bool Pipe_IsStalled(void)
- {
- return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].rxstalldi;
- }
-
- /** 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_UC3
- */
- static inline void Pipe_ClearStall(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_ClearStall(void)
- {
- (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].rxstalldic = true;
- USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE];
- }
-
- /** Reads one byte from the currently selected pipe's bank, for OUT direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \return Next byte in the currently selected pipe's FIFO buffer.
- */
- static inline uint8_t Pipe_Read_8(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint8_t Pipe_Read_8(void)
- {
- return *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- }
-
- /** Writes one byte to the currently selected pipe's bank, for IN direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \param[in] Data Data to write into the the currently selected pipe's FIFO buffer.
- */
- static inline void Pipe_Write_8(const uint8_t Data) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Write_8(const uint8_t Data)
- {
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = Data;
- }
-
- /** Discards one byte from the currently selected pipe's bank, for OUT direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- */
- static inline void Pipe_Discard_8(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Discard_8(void)
- {
- uint8_t Dummy;
-
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- }
-
- /** Reads two bytes from the currently selected pipe's bank in little endian format, for OUT
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \return Next two bytes in the currently selected pipe's FIFO buffer.
- */
- static inline uint16_t Pipe_Read_16_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint16_t Pipe_Read_16_LE(void)
- {
- uint16_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint16_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
-
- return ((Byte0 << 8) | Byte1);
- }
-
- /** Reads two bytes from the currently selected pipe's bank in big endian format, for OUT
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \return Next two bytes in the currently selected pipe's FIFO buffer.
- */
- static inline uint16_t Pipe_Read_16_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint16_t Pipe_Read_16_BE(void)
- {
- uint16_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint16_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
-
- return ((Byte0 << 8) | Byte1);
- }
-
- /** Writes two bytes to the currently selected pipe's bank in little endian format, for IN
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \param[in] Data Data to write to the currently selected pipe's FIFO buffer.
- */
- static inline void Pipe_Write_16_LE(const uint16_t Data) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Write_16_LE(const uint16_t Data)
- {
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF);
- }
-
- /** Writes two bytes to the currently selected pipe's bank in big endian format, for IN
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \param[in] Data Data to write to the currently selected pipe's FIFO buffer.
- */
- static inline void Pipe_Write_16_BE(const uint16_t Data) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Write_16_BE(const uint16_t Data)
- {
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8);
- }
-
- /** Discards two bytes from the currently selected pipe's bank, for OUT direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- */
- static inline void Pipe_Discard_16(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Discard_16(void)
- {
- uint8_t Dummy;
-
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- }
-
- /** Reads four bytes from the currently selected pipe's bank in little endian format, for OUT
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \return Next four bytes in the currently selected pipe's FIFO buffer.
- */
- static inline uint32_t Pipe_Read_32_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint32_t Pipe_Read_32_LE(void)
- {
- uint32_t Byte3 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint32_t Byte2 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint32_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint32_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
-
- return ((Byte0 << 24) | (Byte1 << 16) | (Byte2 << 8) | Byte3);
- }
-
- /** Reads four bytes from the currently selected pipe's bank in big endian format, for OUT
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \return Next four bytes in the currently selected pipe's FIFO buffer.
- */
- static inline uint32_t Pipe_Read_32_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
- static inline uint32_t Pipe_Read_32_BE(void)
- {
- uint32_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint32_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint32_t Byte2 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- uint32_t Byte3 = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
-
- return ((Byte0 << 24) | (Byte1 << 16) | (Byte2 << 8) | Byte3);
- }
-
- /** Writes four bytes to the currently selected pipe's bank in little endian format, for IN
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \param[in] Data Data to write to the currently selected pipe's FIFO buffer.
- */
- static inline void Pipe_Write_32_LE(const uint32_t Data) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Write_32_LE(const uint32_t Data)
- {
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 24);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 16);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF);
- }
-
- /** Writes four bytes to the currently selected pipe's bank in big endian format, for IN
- * direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- *
- * \param[in] Data Data to write to the currently selected pipe's FIFO buffer.
- */
- static inline void Pipe_Write_32_BE(const uint32_t Data) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Write_32_BE(const uint32_t Data)
- {
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 16);
- *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 24);
- }
-
- /** Discards four bytes from the currently selected pipe's bank, for OUT direction pipes.
- *
- * \ingroup Group_PipePrimitiveRW_UC3
- */
- static inline void Pipe_Discard_32(void) ATTR_ALWAYS_INLINE;
- static inline void Pipe_Discard_32(void)
- {
- uint8_t Dummy;
-
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++);
- }
-
- /* External Variables: */
- /** Global indicating the maximum packet size of the default control pipe located at address
- * 0 in the device. This value is set to the value indicated in the attached device's device
- * descriptor once the USB interface is initialized into host mode and a device is attached
- * to the USB bus.
- *
- * \note This variable should be treated as read-only in the user application, and never manually
- * changed in value.
- */
- extern uint8_t USB_Host_ControlPipeSize;
-
- /* Function Prototypes: */
- /** Configures the specified pipe number with the given pipe type, token, target endpoint number in the
- * attached device, bank size and banking mode.
- *
- * A newly configured pipe is frozen by default, and must be unfrozen before use via the \ref Pipe_Unfreeze()
- * before being used. Pipes should be kept frozen unless waiting for data from a device while in IN mode, or
- * sending data to the device in OUT mode. IN type pipes are also automatically configured to accept infinite
- * numbers of IN requests without automatic freezing - this can be overridden by a call to
- * \ref Pipe_SetFiniteINRequests().
- *
- * \param[in] Number Pipe number to configure. This must be more than 0 and less than \ref PIPE_TOTAL_PIPES.
- *
- * \param[in] Type Type of pipe to configure, an \c EP_TYPE_* mask. Not all pipe types are available on Low
- * Speed USB devices - refer to the USB 2.0 specification.
- *
- * \param[in] Token Pipe data token, either \ref PIPE_TOKEN_SETUP, \ref PIPE_TOKEN_OUT or \ref PIPE_TOKEN_IN.
- * All pipes (except Control type) are unidirectional - data may only be read from or
- * written to the pipe bank based on its direction, not both.
- *
- * \param[in] EndpointNumber Endpoint index within the attached device that the pipe should interface to.
- *
- * \param[in] Size Size of the pipe's bank, where packets are stored before they are transmitted to
- * the USB device, or after they have been received from the USB device (depending on
- * the pipe's data direction). The bank size must indicate the maximum packet size that
- * the pipe can handle.
- *
- * \param[in] Banks Number of banks to use for the pipe being configured, a \c PIPE_BANK_* mask. More banks
- * uses more USB DPRAM, but offers better performance. Isochronous type pipes <b>must</b>
- * have at least two banks.
- *
- * \note When the \c ORDERED_EP_CONFIG compile time option is used, Pipes <b>must</b> be configured in ascending order,
- * or bank corruption will occur.
- * \n\n
- *
- * \note Certain microcontroller model's pipes may have different maximum packet sizes based on the pipe's
- * index - refer to the chosen microcontroller's datasheet to determine the maximum bank size for each pipe.
- * \n\n
- *
- * \note The default control pipe 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 pipe upon success. Upon failure, the pipe which
- * failed to reconfigure correctly will be selected.
- *
- * \return Boolean \c true if the configuration succeeded, \c false otherwise.
- */
- bool Pipe_ConfigurePipe(const uint8_t Number,
- const uint8_t Type,
- const uint8_t Token,
- const uint8_t EndpointNumber,
- const uint16_t Size,
- const uint8_t Banks);
-
- /** Spin-loops until the currently selected non-control pipe is ready for the next packed of data to be read
- * or written to it, aborting in the case of an error condition (such as a timeout or device disconnect).
- *
- * \ingroup Group_PipeRW_UC3
- *
- * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum.
- */
- uint8_t Pipe_WaitUntilReady(void);
-
- /** Determines if a pipe has been bound to the given device endpoint address. If a pipe which is bound to the given
- * endpoint is found, it is automatically selected.
- *
- * \param[in] EndpointAddress Address and direction mask of the endpoint within the attached device to check.
- *
- * \return Boolean \c true if a pipe bound to the given endpoint address of the specified direction is found,
- * \c false otherwise.
- */
- bool Pipe_IsEndpointBound(const uint8_t EndpointAddress) ATTR_WARN_UNUSED_RESULT;
-
- /* Private Interface - For use in library only: */
- #if !defined(__DOXYGEN__)
- /* Macros: */
- #if !defined(ENDPOINT_CONTROLEP)
- #define ENDPOINT_CONTROLEP 0
- #endif
-
- /* Inline Functions: */
- static inline uint8_t Pipe_BytesToEPSizeMask(const uint16_t Bytes) ATTR_WARN_UNUSED_RESULT ATTR_CONST ATTR_ALWAYS_INLINE;
- static inline uint8_t Pipe_BytesToEPSizeMask(const uint16_t Bytes)
- {
- uint8_t MaskVal = 0;
- uint16_t CheckBytes = 8;
-
- while ((CheckBytes < Bytes) && (CheckBytes < PIPE_MAX_SIZE))
- {
- MaskVal++;
- CheckBytes <<= 1;
- }
-
- return (MaskVal << AVR32_USBB_PSIZE_OFFSET);
- }
-
- /* Function Prototypes: */
- void Pipe_ClearPipes(void);
- #endif
-
- /* Disable C linkage for C++ Compilers: */
- #if defined(__cplusplus)
- }
- #endif
-
-#endif
-
-/** @} */
-
+/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * \brief USB Pipe definitions for the AVR32 UC3 microcontrollers. + * \copydetails Group_PipeManagement_UC3 + * + * \note This file should not be included directly. It is automatically included as needed by the USB driver + * dispatch header located in LUFA/Drivers/USB/USB.h. + */ + +/** \ingroup Group_PipeRW + * \defgroup Group_PipeRW_UC3 Pipe Data Reading and Writing (UC3) + * \brief Pipe data read/write definitions for the Atmel AVR32 UC3 architecture. + * + * Functions, macros, variables, enums and types related to data reading and writing from and to pipes. + */ + +/** \ingroup Group_PipePrimitiveRW + * \defgroup Group_PipePrimitiveRW_UC3 Read/Write of Primitive Data Types (UC3) + * \brief Pipe primitive data read/write definitions for the Atmel AVR32 UC3 architecture. + * + * Functions, macros, variables, enums and types related to data reading and writing of primitive data types + * from and to pipes. + */ + +/** \ingroup Group_PipePacketManagement + * \defgroup Group_PipePacketManagement_UC3 Pipe Packet Management (UC3) + * \brief Pipe packet management definitions for the Atmel AVR32 UC3 architecture. + * + * Functions, macros, variables, enums and types related to packet management of pipes. + */ + +/** \ingroup Group_PipeControlReq + * \defgroup Group_PipeControlReq_UC3 Pipe Control Request Management (UC3) + * \brief Pipe control request management definitions for the Atmel AVR32 UC3 architecture. + * + * Module for host mode request processing. This module allows for the transmission of standard, class and + * vendor control requests to the default control endpoint of an attached device while in host mode. + * + * \see Chapter 9 of the USB 2.0 specification. + */ + +/** \ingroup Group_PipeManagement + * \defgroup Group_PipeManagement_UC3 Pipe Management (UC3) + * \brief Pipe management definitions for the Atmel AVR32 UC3 architecture. + * + * This module contains functions, macros and enums related to pipe management when in USB Host mode. This + * module contains the pipe management macros, as well as pipe interrupt and data send/receive functions + * for various data types. + * + * @{ + */ + +#ifndef __PIPE_UC3_H__ +#define __PIPE_UC3_H__ + + /* Includes: */ + #include "../../../../Common/Common.h" + #include "../USBTask.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #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: */ + #define PIPE_HSB_ADDRESS_SPACE_SIZE (64 * 1024UL) + + /* External Variables: */ + extern volatile uint32_t USB_SelectedPipe; + extern volatile uint8_t* USB_PipeFIFOPos[]; + #endif + + /* Public Interface - May be used in end-application: */ + /* Macros: */ + /** \name Pipe Error Flag Masks */ + //@{ + /** Mask for \ref Pipe_GetErrorFlags(), indicating that an overflow error occurred in the pipe on the received data. */ + #define PIPE_ERRORFLAG_OVERFLOW (AVR32_USBB_UPSTA0_OVERFI_MASK << 8) + + /** Mask for \ref Pipe_GetErrorFlags(), indicating that a CRC error occurred in the pipe on the received data. */ + #define PIPE_ERRORFLAG_CRC16 AVR32_USBB_UPERR0_CRC16_MASK + + /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware timeout error occurred in the pipe. */ + #define PIPE_ERRORFLAG_TIMEOUT AVR32_USBB_UPERR0_TIMEOUT_MASK + + /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware PID error occurred in the pipe. */ + #define PIPE_ERRORFLAG_PID AVR32_USBB_UPERR0_PID_MASK + + /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware data PID error occurred in the pipe. */ + #define PIPE_ERRORFLAG_DATAPID AVR32_USBB_UPERR0_DATAPID_MASK + + /** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware data toggle error occurred in the pipe. */ + #define PIPE_ERRORFLAG_DATATGL AVR32_USBB_UPERR0_DATATGL_MASK + //@} + + /** \name Pipe Token Masks */ + //@{ + /** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a SETUP token (for CONTROL type pipes), + * which will trigger a control request on the attached device when data is written to the pipe. + */ + #define PIPE_TOKEN_SETUP AVR32_USBB_UPCFG0_PTOKEN_SETUP + + /** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a IN token (for non-CONTROL type pipes), + * indicating that the pipe data will flow from device to host. + */ + #define PIPE_TOKEN_IN AVR32_USBB_UPCFG0_PTOKEN_IN + + /** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a OUT token (for non-CONTROL type pipes), + * indicating that the pipe data will flow from host to device. + */ + #define PIPE_TOKEN_OUT AVR32_USBB_UPCFG0_PTOKEN_OUT + //@} + + /** \name Pipe Bank Mode Masks */ + //@{ + /** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the pipe + * should have one single bank, which requires less USB FIFO memory but results in slower transfers as + * only one USB device (the AVR or the attached device) can access the pipe's bank at the one time. + */ + #define PIPE_BANK_SINGLE AVR32_USBB_UPCFG0_PBK_SINGLE + + /** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the pipe + * should have two banks, which requires more USB FIFO memory but results in faster transfers as one + * USB device (the AVR or the attached device) can access one bank while the other accesses the second + * bank. + */ + #define PIPE_BANK_DOUBLE AVR32_USBB_UPCFG0_PBK_DOUBLE + + #if defined(USB_SERIES_UC3A3_AVR32) || defined(USB_SERIES_UC3A4_AVR32) || defined(__DOXYGEN__) + /** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the + * pipe should have three banks, which requires more USB FIFO memory but results in faster transfers + * as one USB device (the AVR or the attached device) can access one bank while the other accesses the + * remaining banks. + * + * \note Not available on all AVR models. + */ + #define PIPE_BANK_TRIPLE AVR32_USBB_UPCFG0_PBK_TRIPLE + #endif + //@} + + /** Default size of the default control pipe's bank, until altered by the Endpoint0Size value + * in the device descriptor of the attached device. + */ + #define PIPE_CONTROLPIPE_DEFAULT_SIZE 64 + + #if defined(USB_SERIES_UC3A3_AVR32) || defined(USB_SERIES_UC3A4_AVR32) || defined(__DOXYGEN__) + /** Total number of pipes (including the default control pipe at address 0) which may be used in + * the device. + */ + #define PIPE_TOTAL_PIPES 8 + #else + #define PIPE_TOTAL_PIPES 7 + #endif + + /** Size in bytes of the largest pipe bank size possible in the device. Not all banks on each AVR + * model supports the largest bank size possible on the device; different pipe numbers support + * different maximum bank sizes. This value reflects the largest possible bank of any pipe on the + * currently selected UC3 AVR model. + */ + #define PIPE_MAX_SIZE 256 + + /* Enums: */ + /** Enum for the possible error return codes of the \ref Pipe_WaitUntilReady() function. + * + * \ingroup Group_PipeRW_UC3 + */ + enum Pipe_WaitUntilReady_ErrorCodes_t + { + PIPE_READYWAIT_NoError = 0, /**< Pipe ready for next packet, no error. */ + PIPE_READYWAIT_PipeStalled = 1, /**< The device stalled the pipe while waiting. */ + PIPE_READYWAIT_DeviceDisconnected = 2, /**< Device was disconnected from the host while waiting. */ + PIPE_READYWAIT_Timeout = 3, /**< The device failed to accept or send the next packet + * within the software timeout period set by the + * \ref USB_STREAM_TIMEOUT_MS macro. + */ + }; + + /* 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_UC3 + * + * \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 (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].pbyct; + } + + /** 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 USB_SelectedPipe; + } + + /** 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) + { + USB_SelectedPipe = 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) + { + AVR32_USBB.uprst |= (AVR32_USBB_PRST0_MASK << PipeNumber); + AVR32_USBB.uprst &= ~(AVR32_USBB_PRST0_MASK << PipeNumber); + USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE]; + } + + /** 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) + { + AVR32_USBB.uprst |= (AVR32_USBB_PEN0_MASK << USB_SelectedPipe); + } + + /** 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) + { + AVR32_USBB.uprst &= ~(AVR32_USBB_PEN0_MASK << USB_SelectedPipe); + } + + /** Determines if the currently selected pipe is enabled, but not necessarily configured. + * + * \return Boolean \c true if the currently selected pipe is enabled, \c false otherwise. + */ + static inline bool Pipe_IsEnabled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsEnabled(void) + { + return ((AVR32_USBB.uprst & (AVR32_USBB_PEN0_MASK << USB_SelectedPipe)) ? true : false); + } + + /** Gets the current pipe token, indicating the pipe's data direction and type. + * + * \return The current pipe token, as a \c PIPE_TOKEN_* mask. + */ + static inline uint8_t Pipe_GetPipeToken(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint8_t Pipe_GetPipeToken(void) + { + return (&AVR32_USBB.UPCFG0)[USB_SelectedPipe].ptoken; + } + + /** Sets the token for the currently selected pipe to one of the tokens specified by the \c 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 \c PIPE_TOKEN_* mask. + */ + static inline void Pipe_SetPipeToken(const uint8_t Token) ATTR_ALWAYS_INLINE; + static inline void Pipe_SetPipeToken(const uint8_t Token) + { + (&AVR32_USBB.UPCFG0)[USB_SelectedPipe].ptoken = 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) + { + (&AVR32_USBB.UPINRQ0)[USB_SelectedPipe].inmode = true; + } + + /** 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) + { + (&AVR32_USBB.UPINRQ0)[USB_SelectedPipe].inmode = false; + (&AVR32_USBB.UPINRQ0)[USB_SelectedPipe].inrq = TotalINRequests; + } + + /** Determines if the currently selected pipe is configured. + * + * \return Boolean \c true if the selected pipe is configured, \c false otherwise. + */ + static inline bool Pipe_IsConfigured(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsConfigured(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].cfgok; + } + + /** Retrieves the endpoint address of the endpoint within the attached device that the currently selected + * pipe is bound to. + * + * \return Endpoint address the currently selected pipe is bound to. + */ + static inline uint8_t Pipe_GetBoundEndpointAddress(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint8_t Pipe_GetBoundEndpointAddress(void) + { + return ((&AVR32_USBB.UPCFG0)[USB_SelectedPipe].pepnum | + ((Pipe_GetPipeToken() == PIPE_TOKEN_IN) ? PIPE_EPDIR_MASK : 0)); + } + + /** 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) + { + (&AVR32_USBB.UPCFG0)[USB_SelectedPipe].intfrq = 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 ((AVR32_USBB.uhint & (AVR32_USBB_P6INT_MASK | AVR32_USBB_P5INT_MASK | + AVR32_USBB_P4INT_MASK | AVR32_USBB_P3INT_MASK | + AVR32_USBB_P2INT_MASK | AVR32_USBB_P1INT_MASK | + AVR32_USBB_P0INT_MASK)) >> AVR32_USBB_P0INT_OFFSET); + } + + /** 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 \c true if the specified pipe has interrupted, \c 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 ((AVR32_USBB.uhint & (AVR32_USBB_P0INTES_MASK << USB_SelectedPipe)) ? 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) + { + (&AVR32_USBB.UPCON0CLR)[USB_SelectedPipe].pfreezec = true; + } + + /** 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) + { + (&AVR32_USBB.UPCON0SET)[USB_SelectedPipe].pfreezes = true; + } + + /** Determines if the currently selected pipe is frozen, and not able to accept data. + * + * \return Boolean \c true if the currently selected pipe is frozen, \c false otherwise. + */ + static inline bool Pipe_IsFrozen(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsFrozen(void) + { + return (((&AVR32_USBB.UPCON0)[USB_SelectedPipe].pfreeze) ? true : false); + } + + /** Clears the error flags for the currently selected pipe. */ + static inline void Pipe_ClearError(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_ClearError(void) + { + (&AVR32_USBB.uperr0)[USB_SelectedPipe] = 0; + (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].overfic = true; + } + + /** 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 \c true if an error has occurred on the selected pipe, \c false otherwise. + */ + static inline bool Pipe_IsError(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsError(void) + { + return (((&AVR32_USBB.upsta0)[USB_SelectedPipe] & + (AVR32_USBB_PERRI_MASK | AVR32_USBB_OVERFI_MASK)) ? true : false); + } + + /** Gets a mask of the hardware error flags which have occurred on the currently selected pipe. This + * value can then be masked against the \c PIPE_ERRORFLAG_* masks to determine what error has occurred. + * + * \return Mask comprising of \c 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 (((&AVR32_USBB.uperr0)[USB_SelectedPipe] & + (PIPE_ERRORFLAG_CRC16 | PIPE_ERRORFLAG_TIMEOUT | + PIPE_ERRORFLAG_PID | PIPE_ERRORFLAG_DATAPID | + PIPE_ERRORFLAG_DATATGL)) | + (((&AVR32_USBB.upsta0)[USB_SelectedPipe] << 8) & + PIPE_ERRORFLAG_OVERFLOW)); + } + + /** Retrieves the number of busy banks in the currently selected pipe, which have been queued for + * transmission via the \ref Pipe_ClearOUT() command, or are awaiting acknowledgement via the + * \ref Pipe_ClearIN() command. + * + * \ingroup Group_PipePacketManagement_UC3 + * + * \return Total number of busy banks in the selected pipe. + */ + static inline uint8_t Pipe_GetBusyBanks(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint8_t Pipe_GetBusyBanks(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].nbusybk; + } + + /** 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_UC3 + * + * \return Boolean \c 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 (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].rwall; + } + + /** Determines if a packet has been received on the currently selected IN pipe from the attached device. + * + * \ingroup Group_PipePacketManagement_UC3 + * + * \return Boolean \c true if the current pipe has received an IN packet, \c false otherwise. + */ + static inline bool Pipe_IsINReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsINReceived(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].rxini; + } + + /** Determines if the currently selected OUT pipe is ready to send an OUT packet to the attached device. + * + * \ingroup Group_PipePacketManagement_UC3 + * + * \return Boolean \c true if the current pipe is ready for an OUT packet, \c false otherwise. + */ + static inline bool Pipe_IsOUTReady(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsOUTReady(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].txouti; + } + + /** Determines if no SETUP request is currently being sent to the attached device on the selected + * CONTROL type pipe. + * + * \ingroup Group_PipePacketManagement_UC3 + * + * \return Boolean \c true if the current pipe is ready for a SETUP packet, \c false otherwise. + */ + static inline bool Pipe_IsSETUPSent(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsSETUPSent(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].txstpi; + } + + /** Sends the currently selected CONTROL type pipe's contents to the device as a SETUP packet. + * + * \ingroup Group_PipePacketManagement_UC3 + */ + static inline void Pipe_ClearSETUP(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_ClearSETUP(void) + { + (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].txstpic = true; + USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE]; + } + + /** 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_UC3 + */ + static inline void Pipe_ClearIN(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_ClearIN(void) + { + (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].rxinic = true; + (&AVR32_USBB.UPCON0CLR)[USB_SelectedPipe].fifoconc = true; + USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE]; + } + + /** 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_UC3 + */ + static inline void Pipe_ClearOUT(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_ClearOUT(void) + { + (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].txoutic = true; + (&AVR32_USBB.UPCON0CLR)[USB_SelectedPipe].fifoconc = true; + USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE]; + } + + /** 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_UC3 + * + * \return Boolean \c true if an NAK has been received on the current pipe, \c false otherwise. + */ + static inline bool Pipe_IsNAKReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsNAKReceived(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].nakedi; + } + + /** Clears the NAK condition on the currently selected pipe. + * + * \ingroup Group_PipePacketManagement_UC3 + * + * \see \ref Pipe_IsNAKReceived() for more details. + */ + static inline void Pipe_ClearNAKReceived(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_ClearNAKReceived(void) + { + (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].nakedic = true; + } + + /** Determines if the currently selected pipe has had the STALL condition set by the attached device. + * + * \ingroup Group_PipePacketManagement_UC3 + * + * \return Boolean \c true if the current pipe has been stalled by the attached device, \c false otherwise. + */ + static inline bool Pipe_IsStalled(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_IsStalled(void) + { + return (&AVR32_USBB.UPSTA0)[USB_SelectedPipe].rxstalldi; + } + + /** 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_UC3 + */ + static inline void Pipe_ClearStall(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_ClearStall(void) + { + (&AVR32_USBB.UPSTA0CLR)[USB_SelectedPipe].rxstalldic = true; + USB_PipeFIFOPos[USB_SelectedPipe] = &AVR32_USBB_SLAVE[USB_SelectedPipe * PIPE_HSB_ADDRESS_SPACE_SIZE]; + } + + /** Reads one byte from the currently selected pipe's bank, for OUT direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \return Next byte in the currently selected pipe's FIFO buffer. + */ + static inline uint8_t Pipe_Read_8(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint8_t Pipe_Read_8(void) + { + return *(USB_PipeFIFOPos[USB_SelectedPipe]++); + } + + /** Writes one byte to the currently selected pipe's bank, for IN direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \param[in] Data Data to write into the the currently selected pipe's FIFO buffer. + */ + static inline void Pipe_Write_8(const uint8_t Data) ATTR_ALWAYS_INLINE; + static inline void Pipe_Write_8(const uint8_t Data) + { + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = Data; + } + + /** Discards one byte from the currently selected pipe's bank, for OUT direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + */ + static inline void Pipe_Discard_8(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_Discard_8(void) + { + uint8_t Dummy; + + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + } + + /** Reads two bytes from the currently selected pipe's bank in little endian format, for OUT + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \return Next two bytes in the currently selected pipe's FIFO buffer. + */ + static inline uint16_t Pipe_Read_16_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint16_t Pipe_Read_16_LE(void) + { + uint16_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint16_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + + return ((Byte0 << 8) | Byte1); + } + + /** Reads two bytes from the currently selected pipe's bank in big endian format, for OUT + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \return Next two bytes in the currently selected pipe's FIFO buffer. + */ + static inline uint16_t Pipe_Read_16_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint16_t Pipe_Read_16_BE(void) + { + uint16_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint16_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + + return ((Byte0 << 8) | Byte1); + } + + /** Writes two bytes to the currently selected pipe's bank in little endian format, for IN + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \param[in] Data Data to write to the currently selected pipe's FIFO buffer. + */ + static inline void Pipe_Write_16_LE(const uint16_t Data) ATTR_ALWAYS_INLINE; + static inline void Pipe_Write_16_LE(const uint16_t Data) + { + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF); + } + + /** Writes two bytes to the currently selected pipe's bank in big endian format, for IN + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \param[in] Data Data to write to the currently selected pipe's FIFO buffer. + */ + static inline void Pipe_Write_16_BE(const uint16_t Data) ATTR_ALWAYS_INLINE; + static inline void Pipe_Write_16_BE(const uint16_t Data) + { + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8); + } + + /** Discards two bytes from the currently selected pipe's bank, for OUT direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + */ + static inline void Pipe_Discard_16(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_Discard_16(void) + { + uint8_t Dummy; + + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + } + + /** Reads four bytes from the currently selected pipe's bank in little endian format, for OUT + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \return Next four bytes in the currently selected pipe's FIFO buffer. + */ + static inline uint32_t Pipe_Read_32_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint32_t Pipe_Read_32_LE(void) + { + uint32_t Byte3 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint32_t Byte2 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint32_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint32_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + + return ((Byte0 << 24) | (Byte1 << 16) | (Byte2 << 8) | Byte3); + } + + /** Reads four bytes from the currently selected pipe's bank in big endian format, for OUT + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \return Next four bytes in the currently selected pipe's FIFO buffer. + */ + static inline uint32_t Pipe_Read_32_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint32_t Pipe_Read_32_BE(void) + { + uint32_t Byte0 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint32_t Byte1 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint32_t Byte2 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + uint32_t Byte3 = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + + return ((Byte0 << 24) | (Byte1 << 16) | (Byte2 << 8) | Byte3); + } + + /** Writes four bytes to the currently selected pipe's bank in little endian format, for IN + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \param[in] Data Data to write to the currently selected pipe's FIFO buffer. + */ + static inline void Pipe_Write_32_LE(const uint32_t Data) ATTR_ALWAYS_INLINE; + static inline void Pipe_Write_32_LE(const uint32_t Data) + { + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 24); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 16); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF); + } + + /** Writes four bytes to the currently selected pipe's bank in big endian format, for IN + * direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + * + * \param[in] Data Data to write to the currently selected pipe's FIFO buffer. + */ + static inline void Pipe_Write_32_BE(const uint32_t Data) ATTR_ALWAYS_INLINE; + static inline void Pipe_Write_32_BE(const uint32_t Data) + { + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data & 0xFF); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 8); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 16); + *(USB_PipeFIFOPos[USB_SelectedPipe]++) = (Data >> 24); + } + + /** Discards four bytes from the currently selected pipe's bank, for OUT direction pipes. + * + * \ingroup Group_PipePrimitiveRW_UC3 + */ + static inline void Pipe_Discard_32(void) ATTR_ALWAYS_INLINE; + static inline void Pipe_Discard_32(void) + { + uint8_t Dummy; + + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + Dummy = *(USB_PipeFIFOPos[USB_SelectedPipe]++); + } + + /* External Variables: */ + /** Global indicating the maximum packet size of the default control pipe located at address + * 0 in the device. This value is set to the value indicated in the attached device's device + * descriptor once the USB interface is initialized into host mode and a device is attached + * to the USB bus. + * + * \note This variable should be treated as read-only in the user application, and never manually + * changed in value. + */ + extern uint8_t USB_Host_ControlPipeSize; + + /* Function Prototypes: */ + /** Configures the specified pipe number with the given pipe type, token, target endpoint number in the + * attached device, bank size and banking mode. + * + * A newly configured pipe is frozen by default, and must be unfrozen before use via the \ref Pipe_Unfreeze() + * before being used. Pipes should be kept frozen unless waiting for data from a device while in IN mode, or + * sending data to the device in OUT mode. IN type pipes are also automatically configured to accept infinite + * numbers of IN requests without automatic freezing - this can be overridden by a call to + * \ref Pipe_SetFiniteINRequests(). + * + * \param[in] Number Pipe number to configure. This must be more than 0 and less than \ref PIPE_TOTAL_PIPES. + * + * \param[in] Type Type of pipe to configure, an \c EP_TYPE_* mask. Not all pipe types are available on Low + * Speed USB devices - refer to the USB 2.0 specification. + * + * \param[in] Token Pipe data token, either \ref PIPE_TOKEN_SETUP, \ref PIPE_TOKEN_OUT or \ref PIPE_TOKEN_IN. + * All pipes (except Control type) are unidirectional - data may only be read from or + * written to the pipe bank based on its direction, not both. + * + * \param[in] EndpointNumber Endpoint index within the attached device that the pipe should interface to. + * + * \param[in] Size Size of the pipe's bank, where packets are stored before they are transmitted to + * the USB device, or after they have been received from the USB device (depending on + * the pipe's data direction). The bank size must indicate the maximum packet size that + * the pipe can handle. + * + * \param[in] Banks Number of banks to use for the pipe being configured, a \c PIPE_BANK_* mask. More banks + * uses more USB DPRAM, but offers better performance. Isochronous type pipes <b>must</b> + * have at least two banks. + * + * \note When the \c ORDERED_EP_CONFIG compile time option is used, Pipes <b>must</b> be configured in ascending order, + * or bank corruption will occur. + * \n\n + * + * \note Certain microcontroller model's pipes may have different maximum packet sizes based on the pipe's + * index - refer to the chosen microcontroller's datasheet to determine the maximum bank size for each pipe. + * \n\n + * + * \note The default control pipe 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 pipe upon success. Upon failure, the pipe which + * failed to reconfigure correctly will be selected. + * + * \return Boolean \c true if the configuration succeeded, \c false otherwise. + */ + bool Pipe_ConfigurePipe(const uint8_t Number, + const uint8_t Type, + const uint8_t Token, + const uint8_t EndpointNumber, + const uint16_t Size, + const uint8_t Banks); + + /** Spin-loops until the currently selected non-control pipe is ready for the next packed of data to be read + * or written to it, aborting in the case of an error condition (such as a timeout or device disconnect). + * + * \ingroup Group_PipeRW_UC3 + * + * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum. + */ + uint8_t Pipe_WaitUntilReady(void); + + /** Determines if a pipe has been bound to the given device endpoint address. If a pipe which is bound to the given + * endpoint is found, it is automatically selected. + * + * \param[in] EndpointAddress Address and direction mask of the endpoint within the attached device to check. + * + * \return Boolean \c true if a pipe bound to the given endpoint address of the specified direction is found, + * \c false otherwise. + */ + bool Pipe_IsEndpointBound(const uint8_t EndpointAddress) ATTR_WARN_UNUSED_RESULT; + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Macros: */ + #if !defined(ENDPOINT_CONTROLEP) + #define ENDPOINT_CONTROLEP 0 + #endif + + /* Inline Functions: */ + static inline uint8_t Pipe_BytesToEPSizeMask(const uint16_t Bytes) ATTR_WARN_UNUSED_RESULT ATTR_CONST ATTR_ALWAYS_INLINE; + static inline uint8_t Pipe_BytesToEPSizeMask(const uint16_t Bytes) + { + uint8_t MaskVal = 0; + uint16_t CheckBytes = 8; + + while ((CheckBytes < Bytes) && (CheckBytes < PIPE_MAX_SIZE)) + { + MaskVal++; + CheckBytes <<= 1; + } + + return (MaskVal << AVR32_USBB_PSIZE_OFFSET); + } + + /* Function Prototypes: */ + void Pipe_ClearPipes(void); + #endif + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ + |