* arch/ceva/src/common/vintc.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_CEVA_SRC_COMMON_VINTC_H
#define __ARCH_CEVA_SRC_COMMON_VINTC_H
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
* Public Function Prototypes
****************************************************************************/
* Name: up_vintc_initialize
*
* Description:
* Initialize the VINTC.
*
****************************************************************************/
#ifdef CONFIG_ARCH_HAVE_VINTC
void up_vintc_initialize(void);
#else
static inline void up_vintc_initialize(void)
{
}
#endif
* Name: up_vintc_enable_irq
*
* Description:
* On CEVA architectures, there are four levels of interrupt enabling:
* (1) at the global level(up_irq_enable)
* (2) at the DSP level(up_enable_irq)
* (2) at the VINTC level
* (3) at the device level
* In order to receive interrupts, they must be enabled at all four levels.
*
* This function implements enabling of the device specified by 'irq'
* at the VINTC level if supported by the architecture.
*
****************************************************************************/
#ifdef CONFIG_ARCH_HAVE_VINTC
void up_vintc_enable_irq(int irq);
#else
static inline void up_vintc_enable_irq(int irq)
{
}
#endif
* Name: up_vintc_disable_irq
*
* Description:
* This function implements disabling of the device specified by 'irq'
* at the VINTC level if supported by the architecture(up_irq_save()
* supports the global level, the device level is hardware specific).
*
****************************************************************************/
#ifdef CONFIG_ARCH_HAVE_VINTC
void up_vintc_disable_irq(int irq);
#else
static inline void up_vintc_disable_irq(int irq)
{
}
#endif
* Name: up_vintc_prioritize_irq
*
* Description:
* Set the priority of an IRQ.
*
****************************************************************************/
#if defined(CONFIG_ARCH_HAVE_VINTC) && defined(CONFIG_ARCH_IRQPRIO)
int up_vintc_prioritize_irq(int irq, int priority);
#else
static inline int up_vintc_prioritize_irq(int irq, int priority)
{
return 0;
}
#endif
* Name: up_vintc_trigger_irq
*
* Description:
* Trigger an IRQ by software.
*
****************************************************************************/
#if defined(CONFIG_ARCH_HAVE_VINTC) && defined(CONFIG_ARCH_HAVE_IRQTRIGGER)
void up_vintc_trigger_irq(int irq);
#else
static inline void up_vintc_trigger_irq(int irq)
{
}
#endif
* Name: up_vintc_handler
*
* Description:
* This function address must be sent from VINTC on VECTOR input in order
* to let DSP could jump to the appropriate interrupt handler location.
* Note that VINTC may pass this address to the hardware register, but
* ARCH specific code is responsible to implement this function.
*
****************************************************************************/
void up_vintc_handler(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif