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/*
* SPDX-FileCopyrightText: Copyright 2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/*
* @file freertos/cortexm/sys.c
* @brief cortex m system primitives implementation.
*/
#include <metal/io.h>
#include <metal/sys.h>
#include <metal/utilities.h>
#include <stdint.h>
void sys_irq_restore_enable(unsigned int flags)
{
metal_unused(flags);
/* we disable/enable all IRQs */
__enable_irq();
}
unsigned int sys_irq_save_disable(void)
{
/* we disable/enable all IRQs */
__disable_irq();
return 0;
}
void sys_irq_enable(unsigned int vector)
{
NVIC_EnableIRQ(vector);
}
void sys_irq_disable(unsigned int vector)
{
NVIC_DisableIRQ(vector);
}
void metal_machine_cache_flush(void *addr, unsigned int len)
{
#if (defined(__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U))
SCB_CleanDCache_by_Addr(addr, len);
#else
metal_unused(addr);
metal_unused(len);
#endif
}
void metal_machine_cache_invalidate(void *addr, unsigned int len)
{
#if (defined(__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U))
SCB_InvalidateDCache_by_Addr(addr, len);
#else
metal_unused(addr);
metal_unused(len);
#endif
}
void *metal_machine_io_mem_map(void *va, metal_phys_addr_t pa,
size_t size, unsigned int flags)
{
metal_unused(pa);
metal_unused(size);
metal_unused(flags);
return va;
}
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