42562b9367
Change-Id: I903f5f0692849fb9e7bf5d978b63b12bf1bd6e33 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/*
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* Copyright (c) 2016 Cadence Design Systems, Inc.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __XTENSA_API_H__
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#define __XTENSA_API_H__
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#include <xtensa/hal.h>
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#include "xtensa_rtos.h"
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#include "xtensa_context.h"
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/* Typedef for C-callable interrupt handler function */
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typedef void (*xt_handler)(void *);
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/* Typedef for C-callable exception handler function */
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typedef void (*xt_exc_handler)(XtExcFrame *);
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/*
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* Call this function to set a handler for the specified exception.
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*
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* n - Exception number (type) f - Handler function address,
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* NULL to uninstall handler.
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*
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* The handler will be passed a pointer to the exception frame, which is created
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* on the stack of the thread that caused the exception.
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*
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* If the handler returns, the thread context will be restored and the faulting
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* instruction will be retried. Any values in the exception frame that are
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* modified by the handler will be restored as part of the context. For details
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* of the exception frame structure see xtensa_context.h.
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*
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* FIXME: Remove this API entirely
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*/
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extern xt_exc_handler _xt_set_exception_handler(int n, xt_exc_handler f);
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/*
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* Call this function to enable the specified interrupts.
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*
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* mask - Bit mask of interrupts to be enabled.
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*/
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extern void _xt_ints_on(unsigned int mask);
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/*
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* Call this function to disable the specified interrupts.
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*
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* mask - Bit mask of interrupts to be disabled.
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*/
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extern void _xt_ints_off(unsigned int mask);
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/*
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* Call this function to set the specified (s/w) interrupt.
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*/
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static inline void _xt_set_intset(unsigned int arg)
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{
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xthal_set_intset(arg);
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}
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/* Call this function to clear the specified (s/w or edge-triggered)
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* interrupt.
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*/
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static inline void _xt_set_intclear(unsigned int arg)
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{
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xthal_set_intclear(arg);
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}
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#endif /* __XTENSA_API_H__ */
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