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112 lines
4.5 KiB
C
112 lines
4.5 KiB
C
/*
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Copyright (C) 2016-2017 Espressif Shanghai PTE LTD
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Copyright (C) 2015 Real Time Engineers Ltd.
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All rights reserved
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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***************************************************************************
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>>! NOTE: The modification to the GPL is included to allow you to !<<
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>>! distribute a combined work that includes FreeRTOS without being !<<
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>>! obliged to provide the source code for proprietary components !<<
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>>! outside of the FreeRTOS kernel. !<<
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***************************************************************************
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. Full license text is available on the following
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link: http://www.freertos.org/a00114.html
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*/
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/* This header exists for performance reasons, in order to inline the
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implementation of vPortCPUAcquireMutexIntsDisabled and
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vPortCPUReleaseMutexIntsDisabled into the
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vTaskEnterCritical/vTaskExitCritical functions in task.c as well as the
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vPortCPUAcquireMutex/vPortCPUReleaseMutex implementations.
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Normally this kind of performance hack is over the top, but
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vTaskEnterCritical/vTaskExitCritical is called a great
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deal by FreeRTOS internals.
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It should be #included by freertos port.c or tasks.c, in esp-idf.
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The way it works is that it essentially uses portmux_impl.inc.h as a
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generator template of sorts. When no external memory is used, this
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template is only used to generate the vPortCPUAcquireMutexIntsDisabledInternal
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and vPortCPUReleaseMutexIntsDisabledInternal functions, which use S32C1 to
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do an atomic compare & swap. When external memory is used the functions
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vPortCPUAcquireMutexIntsDisabledExtram and vPortCPUReleaseMutexIntsDisabledExtram
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are also generated, which use uxPortCompareSetExtram to fake the S32C1 instruction.
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The wrapper functions vPortCPUAcquireMutexIntsDisabled and
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vPortCPUReleaseMutexIntsDisabled will then use the appropriate function to do the
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actual lock/unlock.
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*/
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#include "soc/cpu.h"
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#include "portable.h"
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/* XOR one core ID with this value to get the other core ID */
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#define CORE_ID_XOR_SWAP (CORE_ID_PRO ^ CORE_ID_APP)
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//Define the mux routines for use with muxes in internal RAM
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#define PORTMUX_AQUIRE_MUX_FN_NAME vPortCPUAcquireMutexIntsDisabledInternal
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#define PORTMUX_RELEASE_MUX_FN_NAME vPortCPUReleaseMutexIntsDisabledInternal
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#define PORTMUX_COMPARE_SET_FN_NAME uxPortCompareSet
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#include "portmux_impl.inc.h"
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#undef PORTMUX_AQUIRE_MUX_FN_NAME
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#undef PORTMUX_RELEASE_MUX_FN_NAME
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#undef PORTMUX_COMPARE_SET_FN_NAME
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#if defined(CONFIG_SPIRAM_SUPPORT)
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#define PORTMUX_AQUIRE_MUX_FN_NAME vPortCPUAcquireMutexIntsDisabledExtram
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#define PORTMUX_RELEASE_MUX_FN_NAME vPortCPUReleaseMutexIntsDisabledExtram
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#define PORTMUX_COMPARE_SET_FN_NAME uxPortCompareSetExtram
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#include "portmux_impl.inc.h"
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#undef PORTMUX_AQUIRE_MUX_FN_NAME
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#undef PORTMUX_RELEASE_MUX_FN_NAME
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#undef PORTMUX_COMPARE_SET_FN_NAME
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#endif
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#ifdef CONFIG_FREERTOS_PORTMUX_DEBUG
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#define PORTMUX_AQUIRE_MUX_FN_ARGS portMUX_TYPE *mux, int timeout_cycles, const char *fnName, int line
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#define PORTMUX_RELEASE_MUX_FN_ARGS portMUX_TYPE *mux, const char *fnName, int line
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#define PORTMUX_AQUIRE_MUX_FN_CALL_ARGS(x) x, timeout_cycles, fnName, line
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#define PORTMUX_RELEASE_MUX_FN_CALL_ARGS(x) x, fnName, line
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#else
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#define PORTMUX_AQUIRE_MUX_FN_ARGS portMUX_TYPE *mux, int timeout_cycles
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#define PORTMUX_RELEASE_MUX_FN_ARGS portMUX_TYPE *mux
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#define PORTMUX_AQUIRE_MUX_FN_CALL_ARGS(x) x, timeout_cycles
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#define PORTMUX_RELEASE_MUX_FN_CALL_ARGS(x) x
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#endif
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static inline bool __attribute__((always_inline)) vPortCPUAcquireMutexIntsDisabled(PORTMUX_AQUIRE_MUX_FN_ARGS) {
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#if defined(CONFIG_SPIRAM_SUPPORT)
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if (esp_ptr_external_ram(mux)) {
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return vPortCPUAcquireMutexIntsDisabledExtram(PORTMUX_AQUIRE_MUX_FN_CALL_ARGS(mux));
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}
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#endif
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return vPortCPUAcquireMutexIntsDisabledInternal(PORTMUX_AQUIRE_MUX_FN_CALL_ARGS(mux));
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}
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static inline void vPortCPUReleaseMutexIntsDisabled(PORTMUX_RELEASE_MUX_FN_ARGS) {
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#if defined(CONFIG_SPIRAM_SUPPORT)
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if (esp_ptr_external_ram(mux)) {
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vPortCPUReleaseMutexIntsDisabledExtram(PORTMUX_RELEASE_MUX_FN_CALL_ARGS(mux));
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return;
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}
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#endif
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vPortCPUReleaseMutexIntsDisabledInternal(PORTMUX_RELEASE_MUX_FN_CALL_ARGS(mux));
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}
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