71ba65e7c0
原始提交PR：https://gitee.com/rtthread/rt-thread/pulls/372 提交者：https://gitee.com/wei-handong ---------------------- 在TI公司C6000 DSP处理器上成功移植rt-thread操作系统；主要在libcpu/ti-dsp/c6x添加keystone架构底层代码，在bsp/ti-c6678添加bsp工程，该工程已在本人的开发板上成功运行 * 添加TMS320C6678处理器，keystone架构底层代码 * 添加支持中断栈部分代码，修改格式 * 修改汇编rt_hw_context_switch_to处关于时间槽的使用；修改格式 * 修改使用C语言构建任务栈帧，清除fls和ffs对<c6x.h>文件的依赖 * 修改bsp tms320c6678工程，并测试 * 删除依赖TI的KeyStone_common.c文件 * 添加编译说明 * update bsp/ti-tms320c6678/README.md. * format code Co-authored-by: Huang bo <hb265419@126.com> Co-authored-by: hdwei <1147479335@qq.com> Co-authored-by: bernard <bernard.xiong@gmail.com> Co-authored-by: rtthread-bot <48120998+rtthread-bot@users.noreply.github.com> Co-authored-by: Meco Man <920369182@qq.com>
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/*
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* Copyright (c) 2021, Shenzhen Academy of Aerospace Technology
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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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* 2021-11-16 Dystopia the first version
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*/
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#include "interrupt.h"
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#include "c66xx.h"
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#include "trap.h"
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#define MAX_HANDLERS 128
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extern volatile rt_uint8_t rt_interrupt_nest;
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struct rt_irq_desc isr_table[MAX_HANDLERS];
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rt_uint32_t rt_interrupt_from_thread;
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rt_uint32_t rt_interrupt_to_thread;
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rt_uint32_t rt_thread_switch_interrupt_flag;
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/**
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* This function will initialize hardware interrupt
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*/
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void rt_hw_interrupt_init(void)
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{
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// initial system trap
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//rt_trap_init();
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/* init exceptions table */
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rt_memset(isr_table, 0x00, sizeof(isr_table));
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/* init interrupt nest, and context in thread sp */
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rt_interrupt_nest = 0;
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rt_interrupt_from_thread = 0;
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rt_interrupt_to_thread = 0;
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rt_thread_switch_interrupt_flag = 0;
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}
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/**
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* This function will mask a interrupt.
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* @param vector the interrupt number
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*/
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void rt_hw_interrupt_mask(int vector)
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{
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if (vector < 0 || vector >= MAX_HANDLERS)
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{
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return;
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}
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}
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/**
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* This function will un-mask a interrupt.
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* @param vector the interrupt number
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*/
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void rt_hw_interrupt_umask(int vector)
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{
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if (vector < 0 || vector >= MAX_HANDLERS)
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{
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return;
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}
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ICR = vector;
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IER |= vector;
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//enable GIE
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TSR = TSR | 1;
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}
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/**
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* This function will install a interrupt service routine to a interrupt.
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* @param vector the interrupt number
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* @param new_handler the interrupt service routine to be installed
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* @param old_handler the old interrupt service routine
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*/
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rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
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void *param, const char *name)
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{
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rt_isr_handler_t old_handler = RT_NULL;
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if (vector < MAX_HANDLERS || vector >= 0)
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{
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old_handler = isr_table[vector].handler;
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if (handler != RT_NULL)
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{
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#ifdef RT_USING_INTERRUPT_INFO
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rt_strncpy(isr_table[vector].name, name, RT_NAME_MAX);
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#endif /* RT_USING_INTERRUPT_INFO */
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isr_table[vector].handler = handler;
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isr_table[vector].param = param;
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}
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}
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return old_handler;
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}
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void rt_hw_interrupt_clear(int vector)
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{
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if (vector < 0 || vector >= MAX_HANDLERS)
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{
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return;
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}
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}
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