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Interrupt support refactor

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Write inline versions for SDK-based interrupt convenience functions.
This commit is contained in:
Angus Gratton 2015-06-08 18:00:44 +10:00
parent 0dbb6d31a5
commit 822533fd92
5 changed files with 109 additions and 25 deletions
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53
include/xtensa_interrupts.h Normal file
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/* Xtensa interrupt management functions
*
* Some (w/ sdk_ prefix) are implemented in binary libs, rest are
* inlines replacing functions in the binary libraries.
*
* Part of esp-open-rtos
* Copyright (C) 2015 Superhouse Automation Pty Ltd
* BSD Licensed as described in the file LICENSE
*/
#ifndef _XTENSA_INTERRUPTS_H
#define _XTENSA_INTERRUPTS_H
#include <stdint.h>
#include <xtensa/hal.h>
void sdk__xt_int_exit (void);
void sdk__xt_user_exit (void);
void sdk__xt_tick_timer_init (void);
void sdk__xt_timer_int1(void);
INLINED void _xt_isr_unmask (uint32_t unmask)
{
uint32_t intenable;
asm volatile ("rsr %0, intenable" : "=a" (intenable));
intenable |= unmask;
asm volatile ("wsr %0, intenable" :: "a" (intenable));
}
INLINED void _xt_isr_mask (uint32_t mask)
{
uint32_t intenable;
asm volatile ("rsr %0, intenable" : "=a" (intenable));
intenable &= ~mask;
asm volatile ("wsr %0, intenable" :: "a" (intenable));
}
INLINED uint32_t _xt_read_ints (void)
{
uint32_t interrupt;
asm volatile ("rsr %0, interrupt" : "=a" (interrupt));
return interrupt;
}
INLINED void _xt_clear_ints(uint32_t mask)
{
asm volatile ("wsr %0, intclear" :: "a" (mask));
}
typedef void (* _xt_isr)(void);
/* This function is implemeneted in FreeRTOS port.c at the moment,
should be moved or converted to an inline */
void _xt_isr_attach (uint8_t i, _xt_isr func);
#endif