From 821563417565776d2dc3a02b0265e6fcd5218739 Mon Sep 17 00:00:00 2001 From: tmk Date: Mon, 11 Feb 2013 22:57:40 +0900 Subject: Now includes LUFA-120730 in repository --- .../LUFA/Platform/UC3/InterruptManagement.h | 163 +++++++++++++++++++++ 1 file changed, 163 insertions(+) create mode 100644 protocol/lufa/LUFA-120730/LUFA/Platform/UC3/InterruptManagement.h (limited to 'protocol/lufa/LUFA-120730/LUFA/Platform/UC3/InterruptManagement.h') diff --git a/protocol/lufa/LUFA-120730/LUFA/Platform/UC3/InterruptManagement.h b/protocol/lufa/LUFA-120730/LUFA/Platform/UC3/InterruptManagement.h new file mode 100644 index 0000000000..b0e1e3ec1e --- /dev/null +++ b/protocol/lufa/LUFA-120730/LUFA/Platform/UC3/InterruptManagement.h @@ -0,0 +1,163 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2012. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2012 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 Interrupt Controller Driver for the AVR32 UC3 microcontrollers. + * + * Interrupt controller driver for the AVR32 UC3 microcontrollers, for the configuration of interrupt + * handlers within the device. + */ + +/** \ingroup Group_PlatformDrivers_UC3 + * \defgroup Group_PlatformDrivers_UC3Interrupts Interrupt Controller Driver - LUFA/Platform/UC3/InterruptManagement.h + * \brief Interrupt Controller Driver for the AVR32 UC3 microcontrollers. + * + * \section Sec_Dependencies Module Source Dependencies + * The following files must be built with any user project that uses this module: + * - LUFA/Platform/UC3/InterruptManagement.c (Makefile source module name: LUFA_SRC_PLATFORM) + * - LUFA/Platform/UC3/Exception.S (Makefile source module name: LUFA_SRC_PLATFORM) + * + * \section Sec_ModDescription Module Description + * Interrupt controller driver for the AVR32 UC3 microcontrollers, for the configuration of interrupt + * handlers within the device. + * + * Usage Example: + * \code + * #include + * + * ISR(USB_Group_IRQ_Handler) + * { + * // USB group handler code here + * } + * + * void main(void) + * { + * INTC_Init(); + * INTC_RegisterGroupHandler(INTC_IRQ_GROUP(AVR32_USBB_IRQ), AVR32_INTC_INT0, USB_Group_IRQ_Handler); + * } + * \endcode + * + * @{ + */ + +#ifndef _UC3_INTERRUPT_MANAGEMENT_H_ +#define _UC3_INTERRUPT_MANAGEMENT_H_ + + /* Includes: */ + #include "../../Common/Common.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Type Defines: */ + typedef void (*InterruptHandlerPtr_t)(void); + + /* External Variables: */ + #if defined(__INCLUDE_FROM_INTMANAGEMENT_C) + extern const void EVBA_Table; + #endif + extern InterruptHandlerPtr_t InterruptHandlers[AVR32_INTC_NUM_INT_GRPS]; + extern const uint32_t Autovector_Table[]; + #endif + + /* Public Interface - May be used in end-application: */ + /* Macros: */ + /** Converts a given interrupt index into its associated interrupt group. + * + * \param[in] IRQIndex Index of the interrupt request to convert. + * + * \return Interrupt group number associated with the interrupt index. + */ + #define INTC_IRQ_GROUP(IRQIndex) (IRQIndex / 32) + + /** Converts a given interrupt index into its associated interrupt line. + * + * \param[in] IRQIndex Index of the interrupt request to convert. + * + * \return Interrupt line number associated with the interrupt index. + */ + #define INTC_IRQ_LINE(IRQIndex) (IRQIndex % 32) + + /* Function Prototypes: */ + void INTC_Init(void); + InterruptHandlerPtr_t INTC_GetInterruptHandler(const uint_reg_t InterruptLevel); + + /* Inline Functions: */ + /** Registers a handler for a given interrupt group. On the AVR32 UC3 devices, interrupts are grouped by + * peripheral. To save on SRAM used, a single ISR handles all interrupt lines within a single group - to + * determine the exact line that has interrupted within the group ISR handler, use \ref INTC_GetGroupInterrupts(). + * + * If multiple interrupts with the same group are registered, the last registered handler will become the + * handler called for interrupts raised within that group. + * + * To obtain the group number of a specific interrupt index, use the \ref INTC_IRQ_GROUP() macro. + * + * \param[in] GroupNumber Group number of the interrupt group to register a handler for. + * \param[in] InterruptLevel Priority level for the specified interrupt, a \c AVR32_INTC_INT* mask. + * \param[in] Handler Address of the ISR handler for the interrupt group. + */ + static inline void INTC_RegisterGroupHandler(const uint16_t GroupNumber, + const uint8_t InterruptLevel, + const InterruptHandlerPtr_t Handler) ATTR_ALWAYS_INLINE; + static inline void INTC_RegisterGroupHandler(const uint16_t GroupNumber, + const uint8_t InterruptLevel, + const InterruptHandlerPtr_t Handler) + { + InterruptHandlers[GroupNumber] = Handler; + AVR32_INTC.ipr[GroupNumber] = Autovector_Table[InterruptLevel]; + } + + /** Retrieves the pending interrupts for a given interrupt group. The result of this function should be masked + * against interrupt request indexes converted to a request line number via the \ref INTC_IRQ_LINE() macro. To + * obtain the group number of a given interrupt request, use the \ref INTC_IRQ_GROUP() macro. + * + * \param[in] GroupNumber Group number of the interrupt group to check. + * + * \return Mask of pending interrupt lines for the given interrupt group. + */ + static inline uint_reg_t INTC_GetGroupInterrupts(const uint16_t GroupNumber) ATTR_ALWAYS_INLINE; + static inline uint_reg_t INTC_GetGroupInterrupts(const uint16_t GroupNumber) + { + return AVR32_INTC.irr[GroupNumber]; + } + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ + -- cgit v1.2.3