197 lines
4.8 KiB
C
197 lines
4.8 KiB
C
/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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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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* 2018-11-17 Jesven add rt_hw_spinlock_t
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* add smp support
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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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const char *name);
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#ifdef RT_USING_SMP
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rt_base_t rt_hw_local_irq_disable();
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void rt_hw_local_irq_enable(rt_base_t level);
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#define rt_hw_interrupt_disable rt_cpus_lock
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#define rt_hw_interrupt_enable rt_cpus_unlock
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#else
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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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#endif /*RT_USING_SMP*/
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/*
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* Context interfaces
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*/
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#ifdef RT_USING_SMP
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void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to, struct rt_thread *to_thread);
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void rt_hw_context_switch_to(rt_ubase_t to, struct rt_thread *to_thread);
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void rt_hw_context_switch_interrupt(void *context, rt_ubase_t from, rt_ubase_t to, struct rt_thread *to_thread);
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#else
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void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to);
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void rt_hw_context_switch_to(rt_ubase_t to);
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void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to);
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#endif /*RT_USING_SMP*/
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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_ubase_t thread_entry);
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void rt_hw_show_memory(rt_uint32_t addr, rt_size_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 RT_USING_SMP
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typedef union {
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unsigned long slock;
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struct __arch_tickets {
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unsigned short owner;
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unsigned short next;
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} tickets;
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} rt_hw_spinlock_t;
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struct rt_spinlock
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{
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rt_hw_spinlock_t lock;
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};
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void rt_hw_spin_lock_init(rt_hw_spinlock_t *lock);
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void rt_hw_spin_lock(rt_hw_spinlock_t *lock);
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void rt_hw_spin_unlock(rt_hw_spinlock_t *lock);
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int rt_hw_cpu_id(void);
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extern rt_hw_spinlock_t _cpus_lock;
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extern rt_hw_spinlock_t _rt_critical_lock;
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#define __RT_HW_SPIN_LOCK_INITIALIZER(lockname) {0}
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#define __RT_HW_SPIN_LOCK_UNLOCKED(lockname) \
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(rt_hw_spinlock_t) __RT_HW_SPIN_LOCK_INITIALIZER(lockname)
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#define RT_DEFINE_SPINLOCK(x) rt_hw_spinlock_t x = __RT_HW_SPIN_LOCK_UNLOCKED(x)
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#define RT_DECLARE_SPINLOCK(x)
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/**
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* ipi function
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*/
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void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask);
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/**
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* boot secondary cpu
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*/
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void rt_hw_secondary_cpu_up(void);
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/**
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* secondary cpu idle function
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*/
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void rt_hw_secondary_cpu_idle_exec(void);
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#else
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#define RT_DEFINE_SPINLOCK(x)
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#define RT_DECLARE_SPINLOCK(x) rt_ubase_t x
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#define rt_hw_spin_lock(lock) *(lock) = rt_hw_interrupt_disable()
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#define rt_hw_spin_unlock(lock) rt_hw_interrupt_enable(*(lock))
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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