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update sep4020: Modify the interrupt interface implementations.

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aozima
2013-03-31 17:32:04 +08:00
parent fbc1b05dd8
commit 29a3ae4368
6 changed files with 88 additions and 64 deletions
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libcpu/arm/sep4020/interrupt.c
+50 -36
View File
@@ -10,9 +10,11 @@
* Change Logs:
* Date Author Notes
* 2006-03-13 Bernard first version
* 2013-03-29 aozima Modify the interrupt interface implementations.
*/
#include <rtthread.h>
#include <rthw.h>
#include <sep4020.h>
#define MAX_HANDLERS 32
@@ -20,7 +22,7 @@
extern rt_uint32_t rt_interrupt_nest;
/* exception and interrupt handler table */
rt_isr_handler_t isr_table[MAX_HANDLERS];
struct rt_irq_desc isr_table[MAX_HANDLERS];
rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
rt_uint32_t rt_thread_switch_interrupt_flag;
@@ -38,44 +40,45 @@ rt_isr_handler_t rt_hw_interrupt_handle(rt_uint32_t vector)
/**
* This function will initialize hardware interrupt
*/
void rt_hw_interrupt_init()
void rt_hw_interrupt_init(void)
{
register rt_uint32_t idx;
register rt_uint32_t idx;
/*Make sure all intc registers in proper state*/
/*Make sure all intc registers in proper state*/
/*mask all the irq*/
*(RP)(INTC_IMR) = 0xFFFFFFFF;
/*mask all the irq*/
*(RP)(INTC_IMR) = 0xFFFFFFFF;
/*enable all the irq*/
*(RP)(INTC_IER) = 0XFFFFFFFF;
/*enable all the irq*/
*(RP)(INTC_IER) = 0XFFFFFFFF;
/*Dont use any forced irq*/
*(RP)(INTC_IFR) = 0x0;
/*Dont use any forced irq*/
*(RP)(INTC_IFR) = 0x0;
/*Disable all the fiq*/
*(RP)(INTC_FIER) = 0x0;
/*Disable all the fiq*/
*(RP)(INTC_FIER) = 0x0;
/*Mask all the fiq*/
*(RP)(INTC_FIMR) = 0x0F;
/*Mask all the fiq*/
*(RP)(INTC_FIMR) = 0x0F;
/*Dont use forced fiq*/
*(RP)(INTC_FIFR) = 0x0;
/*Dont use forced fiq*/
*(RP)(INTC_FIFR) = 0x0;
/*Intrrupt priority register*/
*(RP)(INTC_IPLR) = 0x0;
/*Intrrupt priority register*/
*(RP)(INTC_IPLR) = 0x0;
/* init exceptions table */
for(idx=0; idx < MAX_HANDLERS; idx++)
{
isr_table[idx] = (rt_isr_handler_t)rt_hw_interrupt_handle;
}
/* init exceptions table */
rt_memset(isr_table, 0x00, sizeof(isr_table));
for(idx=0; idx < MAX_HANDLERS; idx++)
{
isr_table[idx].handler = rt_hw_interrupt_handle;
}
/* init interrupt nest, and context in thread sp */
rt_interrupt_nest = 0;
rt_interrupt_from_thread = 0;
rt_interrupt_to_thread = 0;
rt_thread_switch_interrupt_flag = 0;
/* init interrupt nest, and context in thread sp */
rt_interrupt_nest = 0;
rt_interrupt_from_thread = 0;
rt_interrupt_to_thread = 0;
rt_thread_switch_interrupt_flag = 0;
}
/**
@@ -108,15 +111,26 @@ void rt_hw_interrupt_umask(rt_uint32_t vector)
* @param new_handler the interrupt service routine to be installed
* @param old_handler the old interrupt service routine
*/
void rt_hw_interrupt_install(rt_uint32_t vector, rt_isr_handler_t new_handler, rt_isr_handler_t *old_handler)
rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
void *param, char *name)
{
if(vector < MAX_HANDLERS)
{
if (*old_handler != RT_NULL)
*old_handler = isr_table[vector];
if (new_handler != RT_NULL)
isr_table[vector] = new_handler;
}
rt_isr_handler_t old_handler = RT_NULL;
if(vector < MAX_HANDLERS)
{
old_handler = isr_table[vector].handler;
if (handler != RT_NULL)
{
#ifdef RT_USING_INTERRUPT_INFO
rt_strncpy(isr_table[vector].name, name, RT_NAME_MAX);
#endif /* RT_USING_INTERRUPT_INFO */
isr_table[vector].handler = handler;
isr_table[vector].param = param;
}
}
return old_handler;
}
/*@}*/
libcpu/arm/sep4020/trap.c
+26 -18
View File
@@ -12,6 +12,7 @@
* 2006-03-13 Bernard first version
* 2006-05-27 Bernard add skyeye support
* 2007-11-19 Yi.Qiu fix rt_hw_trap_irq function
* 2013-03-29 aozima Modify the interrupt interface implementations.
*/
#include <rtthread.h>
@@ -131,31 +132,38 @@ void rt_hw_trap_resv(struct rt_hw_register *regs)
rt_hw_cpu_shutdown();
}
extern rt_isr_handler_t isr_table[];
extern struct rt_irq_desc isr_table[];
void rt_hw_trap_irq()
void rt_hw_trap_irq(void)
{
unsigned long intstat;
rt_uint32_t i = 0;
rt_isr_handler_t isr_func;
unsigned long intstat;
rt_uint32_t irq = 0;
rt_isr_handler_t isr_func;
void *param;
/*Get the final intrrupt source*/
intstat = *(RP)(INTC_IFSR);;
/*Get the final intrrupt source*/
intstat = *(RP)(INTC_IFSR);;
/*Shift to get the intrrupt number*/
while(intstat != 1)
{
intstat = intstat >> 1;
i++;
}
/* get interrupt service routine */
isr_func = isr_table[i];
/*Shift to get the intrrupt number*/
while(intstat != 1)
{
intstat = intstat >> 1;
irq++;
}
/* turn to interrupt service routine */
isr_func(i);
/* get interrupt service routine */
isr_func = isr_table[irq].isr_handle;
param = isr_table[irq].param;
/* turn to interrupt service routine */
isr_func(irq, param);
#ifdef RT_USING_INTERRUPT_INFO
isr_table[irq].counter++;
#endif /* RT_USING_INTERRUPT_INFO */
}
void rt_hw_trap_fiq()
void rt_hw_trap_fiq(void)
{
rt_kprintf("fast interrupt request\n");
}