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authorBernard Xiong <[email protected]>2015-09-15 11:50:29 +0000
committerBernard Xiong <[email protected]>2015-09-15 11:50:29 +0000
commita0de58a008b1a4109491121fe3b342cb33f68250 (patch)
treef3c6fbf1271b634f8ca2a13459907279aed7528b /libcpu
parent811a2ead68281f0fdc4cfbf0c3adda81ac9d10f4 (diff)
[BSP] fix x86 bsp compiling issue
Diffstat (limited to 'libcpu')
-rw-r--r--libcpu/ia32/hdisr_gcc.S7
-rw-r--r--libcpu/ia32/interrupt.c76
-rw-r--r--libcpu/ia32/trap.c5
3 files changed, 65 insertions, 23 deletions
diff --git a/libcpu/ia32/hdisr_gcc.S b/libcpu/ia32/hdisr_gcc.S
index 29f200772f..6f79fe4c2a 100644
--- a/libcpu/ia32/hdisr_gcc.S
+++ b/libcpu/ia32/hdisr_gcc.S
@@ -60,7 +60,7 @@ HDINTERRUPTFNC(irq15, 15)
.type _hdinterrupts,@function
.globl rt_interrupt_enter
.globl rt_interrupt_leave
-.globl isr_table
+.globl rt_hw_isr
.globl rt_thread_switch_interrupt_flag
.globl rt_interrupt_from_thread
.globl rt_interrupt_to_thread
@@ -81,10 +81,7 @@ _hdinterrupts:
movl (%eax), %eax /* vector(eax) = *eax */
pushl %eax /* push argument : int vector */
- shll $0x2, %eax /* each item takes up 4bytes in isr_table. */
- movl $isr_table, %ebx /* ebx = &isr_table[0] */
- addl %eax, %ebx /* eax = &isr_table[vector] */
- call *(%ebx)
+ call rt_hw_isr
add $4, %esp /* restore argument */
call rt_interrupt_leave
diff --git a/libcpu/ia32/interrupt.c b/libcpu/ia32/interrupt.c
index 01086a6266..4d86d593df 100644
--- a/libcpu/ia32/interrupt.c
+++ b/libcpu/ia32/interrupt.c
@@ -1,16 +1,27 @@
/*
* File : interrupt.c
* This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
*
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
+ * 2015/9/15 Bernard Update to new interrupt framework.
*/
-
+
#include <rtthread.h>
#include <rthw.h>
@@ -23,9 +34,12 @@ rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
rt_uint32_t rt_thread_switch_interrupt_flag;
/* exception and interrupt handler table */
-rt_isr_handler_t isr_table[MAX_HANDLERS];
+struct rt_irq_desc irq_desc[MAX_HANDLERS];
+
rt_uint16_t irq_mask_8259A = 0xFFFF;
+void rt_hw_interrupt_handle(int vector, void* param);
+
/**
* @addtogroup I386
*/
@@ -64,19 +78,40 @@ void rt_hw_pic_init()
rt_thread_switch_interrupt_flag = 0;
}
-void rt_hw_interrupt_handle(int vector)
+void rt_hw_interrupt_handle(int vector, void* param)
{
rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
}
+void rt_hw_isr(int vector)
+{
+ if (vector < MAX_HANDLERS)
+ {
+ irq_desc[vector].handler(vector, irq_desc[vector].param);
+ }
+}
+
/**
* This function initializes interrupt descript table and 8259 interrupt controller
*
*/
void rt_hw_interrupt_init(void)
{
+ int idx;
+
rt_hw_idt_init();
rt_hw_pic_init();
+
+ /* init exceptions table */
+ for(idx=0; idx < MAX_HANDLERS; idx++)
+ {
+ irq_desc[idx].handler = (rt_isr_handler_t)rt_hw_interrupt_handle;
+ irq_desc[idx].param = RT_NULL;
+#ifdef RT_USING_INTERRUPT_INFO
+ rt_snprintf(irq_desc[idx].name, RT_NAME_MAX - 1, "default");
+ irq_desc[idx].counter = 0;
+#endif
+ }
}
void rt_hw_interrupt_umask(int vector)
@@ -93,13 +128,28 @@ void rt_hw_interrupt_mask(int vector)
outb(IO_PIC2+1, (char)(irq_mask_8259A >> 8));
}
-void rt_hw_interrupt_install(int 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 = irq_desc[vector].handler;
+ if (handler != RT_NULL)
+ {
+ irq_desc[vector].handler = (rt_isr_handler_t)handler;
+ irq_desc[vector].param = param;
+#ifdef RT_USING_INTERRUPT_INFO
+ rt_snprintf(irq_desc[vector].name, RT_NAME_MAX - 1, "%s", name);
+ irq_desc[vector].counter = 0;
+#endif
+ }
+ }
+
+ return old_handler;
}
rt_base_t rt_hw_interrupt_disable(void)
diff --git a/libcpu/ia32/trap.c b/libcpu/ia32/trap.c
index 52b9e65ea3..5e9a51d6d2 100644
--- a/libcpu/ia32/trap.c
+++ b/libcpu/ia32/trap.c
@@ -44,11 +44,6 @@ void rt_hw_idt_init(void)
extern void Xdefault;
int i, j, func;
- for(i=0; i<MAX_HANDLERS; i++)
- {
- isr_table[i] = rt_hw_interrupt_handle;
- }
-
// install a default handler
for (i = 0; i < sizeof(idt)/sizeof(idt[0]); i++)
SETGATE(idt[i], 0, GD_KT, &Xdefault, 0);