diff options
Diffstat (limited to 'libcpu/arm/s3c44b0/interrupt.c')
| -rw-r--r-- | libcpu/arm/s3c44b0/interrupt.c | 134 |
1 files changed, 67 insertions, 67 deletions
diff --git a/libcpu/arm/s3c44b0/interrupt.c b/libcpu/arm/s3c44b0/interrupt.c index 6b3eed4a39..5464011dd2 100644 --- a/libcpu/arm/s3c44b0/interrupt.c +++ b/libcpu/arm/s3c44b0/interrupt.c @@ -1,19 +1,19 @@ /* - * Copyright (c) 2006-2018, RT-Thread Development Team + * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2006-09-06 XuXinming first version - * 2006-09-15 Bernard add interrupt bank 0..3 for more effective + * 2006-09-15 Bernard add interrupt bank 0..3 for more effective * in irq trap */ #include <rtthread.h> #include "s3c44b0.h" -#define MAX_HANDLERS 26 +#define MAX_HANDLERS 26 extern rt_uint32_t rt_interrupt_nest; @@ -34,7 +34,7 @@ unsigned char interrupt_bank3[256]; void rt_hw_interrupt_handle(int vector) { - rt_kprintf("Unhandled interrupt %d occured!!!\n", vector); + rt_kprintf("Unhandled interrupt %d occured!!!\n", vector); } /** @@ -42,70 +42,70 @@ void rt_hw_interrupt_handle(int vector) */ void rt_hw_interrupt_init() { - register int i; + register int i; - /* all interrupt disabled include global bit */ - INTMSK = 0x07ffffff; - - /* clear pending register */ - I_ISPC = 0x03ffffff; - - /* non-vector mode IRQ enable */ - INTCON = 0x5; - - /* all IRQ mode */ - INTMOD = 0x0; + /* all interrupt disabled include global bit */ + INTMSK = 0x07ffffff; - /* init exceptions table */ - for(i=0; i<MAX_HANDLERS; i++) - { - isr_table[i] = rt_hw_interrupt_handle; - } + /* clear pending register */ + I_ISPC = 0x03ffffff; - for ( i = 0; i < 256; i++) - { - interrupt_bank0[i] = 0; - interrupt_bank1[i] = 0; - interrupt_bank2[i] = 0; - interrupt_bank3[i] = 0; - } + /* non-vector mode IRQ enable */ + INTCON = 0x5; - /* setup interrupt bank table */ - interrupt_bank0[1] = 0; - interrupt_bank0[2] = 1; - interrupt_bank0[4] = 2; - interrupt_bank0[8] = 3; - interrupt_bank0[16] = 4; - interrupt_bank0[32] = 5; - interrupt_bank0[64] = 6; - interrupt_bank0[128]= 7; + /* all IRQ mode */ + INTMOD = 0x0; - interrupt_bank1[1] = 8; - interrupt_bank1[2] = 9; - interrupt_bank1[4] = 10; - interrupt_bank1[8] = 11; - interrupt_bank1[16] = 12; - interrupt_bank1[32] = 13; - interrupt_bank1[64] = 14; - interrupt_bank1[128]= 15; + /* init exceptions table */ + for(i=0; i<MAX_HANDLERS; i++) + { + isr_table[i] = rt_hw_interrupt_handle; + } - interrupt_bank2[1] = 16; - interrupt_bank2[2] = 17; - interrupt_bank2[4] = 18; - interrupt_bank2[8] = 19; - interrupt_bank2[16] = 20; - interrupt_bank2[32] = 21; - interrupt_bank2[64] = 22; - interrupt_bank2[128]= 23; + for ( i = 0; i < 256; i++) + { + interrupt_bank0[i] = 0; + interrupt_bank1[i] = 0; + interrupt_bank2[i] = 0; + interrupt_bank3[i] = 0; + } - interrupt_bank3[1] = 24; - interrupt_bank3[2] = 25; + /* setup interrupt bank table */ + interrupt_bank0[1] = 0; + interrupt_bank0[2] = 1; + interrupt_bank0[4] = 2; + interrupt_bank0[8] = 3; + interrupt_bank0[16] = 4; + interrupt_bank0[32] = 5; + interrupt_bank0[64] = 6; + interrupt_bank0[128]= 7; - /* 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; + interrupt_bank1[1] = 8; + interrupt_bank1[2] = 9; + interrupt_bank1[4] = 10; + interrupt_bank1[8] = 11; + interrupt_bank1[16] = 12; + interrupt_bank1[32] = 13; + interrupt_bank1[64] = 14; + interrupt_bank1[128]= 15; + + interrupt_bank2[1] = 16; + interrupt_bank2[2] = 17; + interrupt_bank2[4] = 18; + interrupt_bank2[8] = 19; + interrupt_bank2[16] = 20; + interrupt_bank2[32] = 21; + interrupt_bank2[64] = 22; + interrupt_bank2[128]= 23; + + interrupt_bank3[1] = 24; + interrupt_bank3[2] = 25; + + /* 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; } /** @@ -114,7 +114,7 @@ void rt_hw_interrupt_init() */ void rt_hw_interrupt_mask(int vector) { - INTMSK |= 1 << vector; + INTMSK |= 1 << vector; } /** @@ -123,7 +123,7 @@ void rt_hw_interrupt_mask(int vector) */ void rt_hw_interrupt_umask(int vector) { - INTMSK &= ~(1 << vector); + INTMSK &= ~(1 << vector); } /** @@ -134,11 +134,11 @@ void rt_hw_interrupt_umask(int vector) */ void rt_hw_interrupt_install(int vector, rt_isr_handler_t new_handler, rt_isr_handler_t *old_handler) { - if(vector < MAX_HANDLERS) - { - if (old_handler != RT_NULL) *old_handler = isr_table[vector]; - if (new_handler != RT_NULL) isr_table[vector] = new_handler; - } + if(vector < MAX_HANDLERS) + { + if (old_handler != RT_NULL) *old_handler = isr_table[vector]; + if (new_handler != RT_NULL) isr_table[vector] = new_handler; + } } /*@}*/ |