kopia lustrzana https://github.com/espressif/esp-idf
147 wiersze
5.3 KiB
C
147 wiersze
5.3 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2015-2019 Cadence Design Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
* SPDX-FileContributor: 2016-2022 Espressif Systems (Shanghai) CO LTD
|
|
*/
|
|
/*******************************************************************************
|
|
Copyright (c) 2006-2015 Cadence Design Systems Inc.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included
|
|
in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
Xtensa-specific API for RTOS ports.
|
|
******************************************************************************/
|
|
|
|
#ifndef __XTENSA_API_H__
|
|
#define __XTENSA_API_H__
|
|
|
|
#include <stdbool.h>
|
|
#include <xtensa/hal.h>
|
|
#include "xtensa_context.h"
|
|
|
|
|
|
/* Typedef for C-callable interrupt handler function */
|
|
typedef void (*xt_handler)(void *);
|
|
|
|
/* Typedef for C-callable exception handler function */
|
|
typedef void (*xt_exc_handler)(XtExcFrame *);
|
|
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to set a handler for the specified exception. The handler
|
|
will be installed on the core that calls this function.
|
|
|
|
n - Exception number (type)
|
|
f - Handler function address, NULL to uninstall handler.
|
|
|
|
The handler will be passed a pointer to the exception frame, which is created
|
|
on the stack of the thread that caused the exception.
|
|
|
|
If the handler returns, the thread context will be restored and the faulting
|
|
instruction will be retried. Any values in the exception frame that are
|
|
modified by the handler will be restored as part of the context. For details
|
|
of the exception frame structure see xtensa_context.h.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
extern xt_exc_handler xt_set_exception_handler(int n, xt_exc_handler f);
|
|
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to set a handler for the specified interrupt. The handler
|
|
will be installed on the core that calls this function.
|
|
|
|
n - Interrupt number.
|
|
f - Handler function address, NULL to uninstall handler.
|
|
arg - Argument to be passed to handler.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
extern xt_handler xt_set_interrupt_handler(int n, xt_handler f, void * arg);
|
|
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to enable the specified interrupts on the core that runs
|
|
this code.
|
|
|
|
mask - Bit mask of interrupts to be enabled.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
extern void xt_ints_on(unsigned int mask);
|
|
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to disable the specified interrupts on the core that runs
|
|
this code.
|
|
|
|
mask - Bit mask of interrupts to be disabled.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
extern void xt_ints_off(unsigned int mask);
|
|
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to set the specified (s/w) interrupt.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
static inline void xt_set_intset(unsigned int arg)
|
|
{
|
|
xthal_set_intset(arg);
|
|
}
|
|
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to clear the specified (s/w or edge-triggered)
|
|
interrupt.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
static inline void xt_set_intclear(unsigned int arg)
|
|
{
|
|
xthal_set_intclear(arg);
|
|
}
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to get handler's argument for the specified interrupt.
|
|
|
|
n - Interrupt number.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
extern void * xt_get_interrupt_handler_arg(int n);
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Call this function to check if the specified interrupt is free to use.
|
|
|
|
intr - Interrupt number.
|
|
cpu - cpu number.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
bool xt_int_has_handler(int intr, int cpu);
|
|
|
|
#endif /* __XTENSA_API_H__ */
|