139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/*
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* File : rthw.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2006-03-18 Bernard the first version
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* 2006-04-25 Bernard add rt_hw_context_switch_interrupt declaration
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* 2006-09-24 Bernard add rt_hw_context_switch_to declaration
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* 2012-12-29 Bernard add rt_hw_exception_install declaration
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* 2017-10-17 Hichard add some micros
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*/
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#ifndef __RT_HW_H__
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#define __RT_HW_H__
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#include <rtthread.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Some macros define
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*/
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#ifndef HWREG32
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#define HWREG32(x) (*((volatile rt_uint32_t *)(x)))
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#endif
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#ifndef HWREG16
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#define HWREG16(x) (*((volatile rt_uint16_t *)(x)))
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#endif
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#ifndef HWREG8
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#define HWREG8(x) (*((volatile rt_uint8_t *)(x)))
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#endif
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#ifndef RT_CPU_CACHE_LINE_SZ
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#define RT_CPU_CACHE_LINE_SZ 32
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#endif
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enum RT_HW_CACHE_OPS
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{
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RT_HW_CACHE_FLUSH = 0x01,
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RT_HW_CACHE_INVALIDATE = 0x02,
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};
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/*
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* CPU interfaces
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*/
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void rt_hw_cpu_icache_enable(void);
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void rt_hw_cpu_icache_disable(void);
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rt_base_t rt_hw_cpu_icache_status(void);
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void rt_hw_cpu_icache_ops(int ops, void* addr, int size);
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void rt_hw_cpu_dcache_enable(void);
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void rt_hw_cpu_dcache_disable(void);
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rt_base_t rt_hw_cpu_dcache_status(void);
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void rt_hw_cpu_dcache_ops(int ops, void* addr, int size);
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void rt_hw_cpu_reset(void);
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void rt_hw_cpu_shutdown(void);
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rt_uint8_t *rt_hw_stack_init(void *entry,
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void *parameter,
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rt_uint8_t *stack_addr,
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void *exit);
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/*
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* Interrupt handler definition
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*/
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typedef void (*rt_isr_handler_t)(int vector, void *param);
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struct rt_irq_desc
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{
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rt_isr_handler_t handler;
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void *param;
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#ifdef RT_USING_INTERRUPT_INFO
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char name[RT_NAME_MAX];
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rt_uint32_t counter;
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#endif
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};
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/*
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* Interrupt interfaces
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*/
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void rt_hw_interrupt_init(void);
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void rt_hw_interrupt_mask(int vector);
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void rt_hw_interrupt_umask(int vector);
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rt_isr_handler_t rt_hw_interrupt_install(int vector,
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rt_isr_handler_t handler,
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void *param,
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char *name);
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rt_base_t rt_hw_interrupt_disable(void);
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void rt_hw_interrupt_enable(rt_base_t level);
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/*
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* Context interfaces
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*/
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void rt_hw_context_switch(rt_uint32_t from, rt_uint32_t to);
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void rt_hw_context_switch_to(rt_uint32_t to);
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void rt_hw_context_switch_interrupt(rt_uint32_t from, rt_uint32_t to);
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void rt_hw_console_output(const char *str);
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void rt_hw_backtrace(rt_uint32_t *fp, rt_uint32_t thread_entry);
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void rt_hw_show_memory(rt_uint32_t addr, rt_uint32_t size);
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/*
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* Exception interfaces
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*/
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void rt_hw_exception_install(rt_err_t (*exception_handle)(void *context));
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/*
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* delay interfaces
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*/
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void rt_hw_us_delay(rt_uint32_t us);
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#ifdef __cplusplus
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}
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#endif
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#endif
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