diff options
author | Jack Humbert <jack.humb@gmail.com> | 2015-10-27 14:52:18 -0400 |
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committer | Jack Humbert <jack.humb@gmail.com> | 2015-10-27 14:52:18 -0400 |
commit | d311fd8d1a0af3b767d26b520d399bf0db22f058 (patch) | |
tree | b9de5704143ac205b4e26222f9d7551e9b161924 /tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h | |
parent | a766918d5c48204375f4c207b30bbbf1389df14f (diff) | |
parent | 6f3141965e88c4ee0ebf7c18a243e4c2d9c5021b (diff) |
Merge pull request #34 from jackhumbert/tmk-master
merging from tmk, new_project script and template
Diffstat (limited to 'tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h')
-rw-r--r-- | tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h | 924 |
1 files changed, 924 insertions, 0 deletions
diff --git a/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h new file mode 100644 index 0000000000..1a0ada8b7b --- /dev/null +++ b/tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.h @@ -0,0 +1,924 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2014 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 disclaims 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_Pipe_SelectedPipe; + extern volatile uint8_t* USB_Pipe_FIFOPos[]; + #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_SetPipeToken() and \ref Pipe_GetPipeToken(). 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_SetPipeToken() and \ref Pipe_GetPipeToken(). 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_SetPipeToken() and \ref Pipe_GetPipeToken(). 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 + //@} + + /** 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. + * + * \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_Pipe_SelectedPipe].pbyct; + } + + /** Determines the currently selected pipe's direction. + * + * \return The currently selected pipe's direction, as a \c PIPE_DIR_* mask. + */ + static inline uint8_t Pipe_GetPipeDirection(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline uint8_t Pipe_GetPipeDirection(void) + { + return (((&AVR32_USBB.UPCFG0)[USB_Pipe_SelectedPipe].ptoken == PIPE_TOKEN_OUT) ? PIPE_DIR_OUT : PIPE_DIR_IN); + } + + /** 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_Pipe_SelectedPipe | Pipe_GetPipeDirection()); + } + + /** Selects the given pipe address. Any pipe operations which do not require the pipe address to be + * indicated will operate on the currently selected pipe. + * + * \param[in] Address Address of the pipe to select. + */ + static inline void Pipe_SelectPipe(const uint8_t Address) ATTR_ALWAYS_INLINE; + static inline void Pipe_SelectPipe(const uint8_t Address) + { + USB_Pipe_SelectedPipe = (Address & PIPE_EPNUM_MASK); + } + + /** Resets the desired pipe, including the pipe banks and flags. + * + * \param[in] Address Index of the pipe to reset. + */ + static inline void Pipe_ResetPipe(const uint8_t Address) ATTR_ALWAYS_INLINE; + static inline void Pipe_ResetPipe(const uint8_t Address) + { + uint32_t PipeNumber = (Address & PIPE_EPNUM_MASK); + + AVR32_USBB.uprst |= (AVR32_USBB_PRST0_MASK << PipeNumber); + AVR32_USBB.uprst &= ~(AVR32_USBB_PRST0_MASK << PipeNumber); + USB_Pipe_FIFOPos[PipeNumber] = &AVR32_USBB_SLAVE[PipeNumber * 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_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_SelectedPipe].inmode = false; + (&AVR32_USBB.UPINRQ0)[USB_Pipe_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_Pipe_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_Pipe_SelectedPipe].pepnum | + ((Pipe_GetPipeToken() == PIPE_TOKEN_IN) ? PIPE_DIR_IN : PIPE_DIR_OUT)); + } + + /** 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_Pipe_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 address has interrupted (valid only for INTERRUPT type + * pipes). + * + * \param[in] Address Address 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 Address) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE; + static inline bool Pipe_HasPipeInterrupted(const uint8_t Address) + { + return ((AVR32_USBB.uhint & (AVR32_USBB_P0INTES_MASK << (Address & PIPE_EPNUM_MASK))) ? 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_Pipe_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_Pipe_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_Pipe_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_Pipe_SelectedPipe] = 0; + (&AVR32_USBB.UPSTA0CLR)[USB_Pipe_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_Pipe_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_Pipe_SelectedPipe] & + (PIPE_ERRORFLAG_CRC16 | PIPE_ERRORFLAG_TIMEOUT | + PIPE_ERRORFLAG_PID | PIPE_ERRORFLAG_DATAPID | + PIPE_ERRORFLAG_DATATGL)) | + (((&AVR32_USBB.upsta0)[USB_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_SelectedPipe].txstpic = true; + (&AVR32_USBB.UPCON0CLR)[USB_Pipe_SelectedPipe].fifoconc = true; + USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe] = &AVR32_USBB_SLAVE[USB_Pipe_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_Pipe_SelectedPipe].rxinic = true; + (&AVR32_USBB.UPCON0CLR)[USB_Pipe_SelectedPipe].fifoconc = true; + USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe] = &AVR32_USBB_SLAVE[USB_Pipe_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_Pipe_SelectedPipe].txoutic = true; + (&AVR32_USBB.UPCON0CLR)[USB_Pipe_SelectedPipe].fifoconc = true; + USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe] = &AVR32_USBB_SLAVE[USB_Pipe_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_Pipe_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_Pipe_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_Pipe_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_Pipe_SelectedPipe].rxstalldic = true; + USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe] = &AVR32_USBB_SLAVE[USB_Pipe_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_Pipe_FIFOPos[USB_Pipe_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_Pipe_FIFOPos[USB_Pipe_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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + + (void)Dummy; + } + + /** 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 Byte0 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint16_t Byte1 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + + return ((Byte1 << 8) | Byte0); + } + + /** 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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint16_t Byte1 = *(USB_Pipe_FIFOPos[USB_Pipe_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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data & 0xFF); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 8); + } + + /** 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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 8); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data & 0xFF); + } + + /** 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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + Dummy = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + + (void)Dummy; + } + + /** 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 Byte0 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint32_t Byte1 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint32_t Byte2 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint32_t Byte3 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + + return ((Byte3 << 24) | (Byte2 << 16) | (Byte1 << 8) | Byte0); + } + + /** 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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint32_t Byte1 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint32_t Byte2 = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + uint32_t Byte3 = *(USB_Pipe_FIFOPos[USB_Pipe_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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data & 0xFF); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 8); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 16); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 24); + } + + /** 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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 24); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 16); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data >> 8); + *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++) = (Data & 0xFF); + } + + /** 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_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + Dummy = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + Dummy = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + Dummy = *(USB_Pipe_FIFOPos[USB_Pipe_SelectedPipe]++); + + (void)Dummy; + } + + /* 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. + * + * \attention 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 a table of pipe descriptions, in sequence. This function can be used to configure multiple + * pipes at the same time. + * + * \note Pipe with a zero address will be ignored, thus this function cannot be used to configure the + * control pipe. + * + * \param[in] Table Pointer to a table of pipe descriptions. + * \param[in] Entries Number of entries in the pipe table to configure. + * + * \return Boolean \c true if all pipes configured successfully, \c false otherwise. + */ + bool Pipe_ConfigurePipeTable(const USB_Pipe_Table_t* const Table, + const uint8_t Entries); + + /** Configures the specified pipe address with the given pipe type, endpoint address within the attached device, + * bank size and number of hardware banks. + * + * 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] Address Pipe address to configure. + * + * \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] EndpointAddress Endpoint address 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. + * + * \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 Address, + const uint8_t Type, + const uint8_t EndpointAddress, + const uint16_t Size, + const uint8_t Banks); + + /** Spin-loops until the currently selected non-control pipe is ready for the next packet 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 + +/** @} */ + |