85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2014, Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Software-managed ISR table
|
|
*
|
|
* Data types for a software-managed ISR table, with a parameter per-ISR.
|
|
*/
|
|
|
|
#ifndef ZEPHYR_INCLUDE_SW_ISR_TABLE_H_
|
|
#define ZEPHYR_INCLUDE_SW_ISR_TABLE_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if !defined(_ASMLANGUAGE)
|
|
#include <zephyr/types.h>
|
|
#include <toolchain.h>
|
|
|
|
/*
|
|
* Note the order: arg first, then ISR. This allows a table entry to be
|
|
* loaded arg -> r0, isr -> r3 in _isr_wrapper with one ldmia instruction,
|
|
* on ARM Cortex-M (Thumb2).
|
|
*/
|
|
struct _isr_table_entry {
|
|
void *arg;
|
|
void (*isr)(void *);
|
|
};
|
|
|
|
/* The software ISR table itself, an array of these structures indexed by the
|
|
* irq line
|
|
*/
|
|
extern struct _isr_table_entry _sw_isr_table[];
|
|
|
|
/*
|
|
* Data structure created in a special binary .intlist section for each
|
|
* configured interrupt. gen_irq_tables.py pulls this out of the binary and
|
|
* uses it to create the IRQ vector table and the _sw_isr_table.
|
|
*
|
|
* More discussion in include/linker/intlist.ld
|
|
*/
|
|
struct _isr_list {
|
|
/** IRQ line number */
|
|
s32_t irq;
|
|
/** Flags for this IRQ, see ISR_FLAG_* definitions */
|
|
s32_t flags;
|
|
/** ISR to call */
|
|
void *func;
|
|
/** Parameter for non-direct IRQs */
|
|
void *param;
|
|
};
|
|
|
|
/** This interrupt gets put directly in the vector table */
|
|
#define ISR_FLAG_DIRECT (1 << 0)
|
|
|
|
#define _MK_ISR_NAME(x, y) __isr_ ## x ## _irq_ ## y
|
|
|
|
/* Create an instance of struct _isr_list which gets put in the .intList
|
|
* section. This gets consumed by gen_isr_tables.py which creates the vector
|
|
* and/or SW ISR tables.
|
|
*/
|
|
#define _ISR_DECLARE(irq, flags, func, param) \
|
|
static struct _isr_list _GENERIC_SECTION(.intList) __used \
|
|
_MK_ISR_NAME(func, __COUNTER__) = \
|
|
{irq, flags, &func, (void *)param}
|
|
|
|
#define IRQ_TABLE_SIZE (CONFIG_NUM_IRQS - CONFIG_GEN_IRQ_START_VECTOR)
|
|
|
|
#ifdef CONFIG_DYNAMIC_INTERRUPTS
|
|
void z_isr_install(unsigned int irq, void (*routine)(void *), void *param);
|
|
#endif
|
|
|
|
#endif /* _ASMLANGUAGE */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* ZEPHYR_INCLUDE_SW_ISR_TABLE_H_ */
|