/* * Copyright (c) 2006-2018, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2006-03-18 Bernard the first version * 2006-04-25 Bernard add rt_hw_context_switch_interrupt declaration * 2006-09-24 Bernard add rt_hw_context_switch_to declaration * 2012-12-29 Bernard add rt_hw_exception_install declaration * 2017-10-17 Hichard add some micros */ #ifndef __RT_HW_H__ #define __RT_HW_H__ #include #ifdef __cplusplus extern "C" { #endif /* * Some macros define */ #ifndef HWREG32 #define HWREG32(x) (*((volatile rt_uint32_t *)(x))) #endif #ifndef HWREG16 #define HWREG16(x) (*((volatile rt_uint16_t *)(x))) #endif #ifndef HWREG8 #define HWREG8(x) (*((volatile rt_uint8_t *)(x))) #endif #ifndef RT_CPU_CACHE_LINE_SZ #define RT_CPU_CACHE_LINE_SZ 32 #endif enum RT_HW_CACHE_OPS { RT_HW_CACHE_FLUSH = 0x01, RT_HW_CACHE_INVALIDATE = 0x02, }; /* * CPU interfaces */ void rt_hw_cpu_icache_enable(void); void rt_hw_cpu_icache_disable(void); rt_base_t rt_hw_cpu_icache_status(void); void rt_hw_cpu_icache_ops(int ops, void* addr, int size); void rt_hw_cpu_dcache_enable(void); void rt_hw_cpu_dcache_disable(void); rt_base_t rt_hw_cpu_dcache_status(void); void rt_hw_cpu_dcache_ops(int ops, void* addr, int size); void rt_hw_cpu_reset(void); void rt_hw_cpu_shutdown(void); rt_uint8_t *rt_hw_stack_init(void *entry, void *parameter, rt_uint8_t *stack_addr, void *exit); /* * Interrupt handler definition */ typedef void (*rt_isr_handler_t)(int vector, void *param); struct rt_irq_desc { rt_isr_handler_t handler; void *param; #ifdef RT_USING_INTERRUPT_INFO char name[RT_NAME_MAX]; rt_uint32_t counter; #endif }; /* * Interrupt interfaces */ void rt_hw_interrupt_init(void); void rt_hw_interrupt_mask(int vector); void rt_hw_interrupt_umask(int vector); rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler, void *param, char *name); rt_base_t rt_hw_interrupt_disable(void); void rt_hw_interrupt_enable(rt_base_t level); /* * Context interfaces */ void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to); void rt_hw_context_switch_to(rt_ubase_t to); void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to); void rt_hw_console_output(const char *str); void rt_hw_backtrace(rt_uint32_t *fp, rt_ubase_t thread_entry); void rt_hw_show_memory(rt_uint32_t addr, rt_size_t size); /* * Exception interfaces */ void rt_hw_exception_install(rt_err_t (*exception_handle)(void *context)); /* * delay interfaces */ void rt_hw_us_delay(rt_uint32_t us); #ifdef __cplusplus } #endif #endif