at91drivers.s

基于ARM7微控制器AT91X40开发板的定时器程序

AT91Drivers:     file format elf32-littlearm
AT91Drivers
architecture: arm, flags 0x00000112:
EXEC_P, HAS_SYMS, D_PAGED
start address 0x01000000

???:
    LOAD off    0x00008000 vaddr 0x01000000 paddr 0x01000000 align 2**15
         filesz 0x00004038 memsz 0x000040b8 flags rwx
???? = 0: [interworking not enabled] [APCS-32] [????????????] [????]

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00000590  01000000  01000000  00008000  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .data         00002038  01002000  01002000  0000a000  2**4
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          00000080  01004038  01004038  0000c038  2**2
                  ALLOC
  3 .debug_abbrev 0000039b  00000000  00000000  0000c038  2**0
                  CONTENTS, READONLY, DEBUGGING
  4 .debug_info   00001154  00000000  00000000  0000c3d3  2**0
                  CONTENTS, READONLY, DEBUGGING
  5 .debug_line   0000057e  00000000  00000000  0000d527  2**0
                  CONTENTS, READONLY, DEBUGGING
  6 .debug_pubnames 00000173  00000000  00000000  0000daa5  2**0
                  CONTENTS, READONLY, DEBUGGING
  7 .debug_aranges 000000a0  00000000  00000000  0000dc18  2**0
                  CONTENTS, READONLY, DEBUGGING
SYMBOL TABLE:
01000000 l    d  .text	00000000 
01002000 l    d  .data	00000000 
01004038 l    d  .bss	00000000 
00000000 l    d  .debug_abbrev	00000000 
00000000 l    d  .debug_info	00000000 
00000000 l    d  .debug_line	00000000 
00000000 l    d  .debug_pubnames	00000000 
00000000 l    d  .debug_aranges	00000000 
00000000 l    d  *ABS*	00000000 
00000000 l    d  *ABS*	00000000 
00000000 l    d  *ABS*	00000000 
00000000 l    df *ABS*	00000000 start.S
01002000 l       .data	00000000 irq_stack
01003004 l       .data	00000000 svc_stack
00000000 l    df *ABS*	00000000 at91_aic.c
0100004c l       .text	00000000 .gcc2_compiled.
01004008 l     O .data	00000020 at91_irq_prtable
00000000 l    df *ABS*	00000000 at91_timer.c
01000190 l       .text	00000000 .gcc2_compiled.
00000000 l    df *ABS*	00000000 at91.c
010002f0 l       .text	00000000 .gcc2_compiled.
00000000 l    df *ABS*	00000000 at91_usart.c
0100038c l       .text	00000000 .gcc2_compiled.
01004028 l     O .data	00000008 usarts
0100038c l     F .text	00000054 usart_init
01000400 l     F .text	00000018 usart_printf
00000000 l    df *ABS*	00000000 main.c
01000460 l       .text	00000000 .gcc2_compiled.
01004030 l     O .data	00000004 cnt.3
01004034 l     O .data	00000004 count.7
010004c4 g     F .text	000000bc maintest
01000418 g     F .text	00000048 printf
010001ec g     F .text	00000104 at91_set_timer
010000e4 g     F .text	00000048 at91_release_irq
01000460 g     F .text	00000064 deal_TimerIrq
01000590 g     O .text	00000000 _etext
01000590 g     O .text	00000000 __stop___kallsyms
01000090 g     F .text	00000020 at91_mask_ack_irq
0100004c g     F .text	00000020 at91_mask_irq
0100012c g     F .text	00000064 at91_init_aic
010000b0 g     F .text	00000034 at91_request_irq
0100031c g     F .text	00000058 do_irq
010003e0 g     F .text	00000020 at91_init_usart
01000374 g     F .text	00000018 at91_init
01004038 g     O .bss	00000080 svr
0100006c g     F .text	00000024 at91_unmask_irq
01000000 g     F .text	00000000 begin
01000590 g     O .text	00000000 __stop___ex_table
01004038 g     O .bss	00000000 __bss_start
01000590 g     O .text	00000000 __start___kallsyms
01000190 g     F .text	0000005c at91_del_timer
010002f0 g     F .text	0000002c at91_install_irqhandler
01000590 g     O .text	00000000 __stop___ksymtab
01000024 g     F .text	00000000 irq_handler
01000000 g     O .text	00000000 _begin
01000590 g     O .text	00000000 __start___ex_table
01004038 g     O .data	00000000 _edata
010040b8 g     O .bss	00000000 _end
01006000 g     O *ABS*	00000000 _end_kernel
01000590 g     O .text	00000000 __start___ksymtab


Disassembly of section .text:

01000000 <begin>:
 1000000:	e3a000d2 	mov	r0, #210	; 0xd2
 1000004:	e129f000 	msr	CPSR_all, r0
 1000008:	e59fd034 	ldr	sp, [pc, #34]	; 1000044 <irq_handler+0x20>
 100000c:	e3a000d3 	mov	r0, #211	; 0xd3
 1000010:	e129f000 	msr	CPSR_all, r0
 1000014:	e59fd02c 	ldr	sp, [pc, #2c]	; 1000048 <irq_handler+0x24>
 1000018:	e3a00013 	mov	r0, #19	; 0x13
 100001c:	e129f000 	msr	CPSR_all, r0
 1000020:	ea000127 	b	10004c4 <maintest>

01000024 <irq_handler>:
 1000024:	e24ee004 	sub	lr, lr, #4	; 0x4
 1000028:	e92d5fff 	stmdb	sp!, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}
 100002c:	e14f4000 	mrs	r4, SPSR
 1000030:	e92d0010 	stmdb	sp!, {r4}
 1000034:	eb0000b8 	bl	100031c <do_irq>
 1000038:	e8bd0010 	ldmia	sp!, {r4}
 100003c:	e169f004 	msr	SPSR_all, r4
 1000040:	e8fd9fff 	ldmia	sp!, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}^
 1000044:	01002000 	tsteq	r0, r0
 1000048:	01003004 	tsteq	r0, r4

0100004c <at91_mask_irq>:
 100004c:	e1a0c00d 	mov	r12, sp
 1000050:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
 1000054:	e24cb004 	sub	r11, r12, #4	; 0x4
7,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0};

void at91_mask_irq(unsigned int irq)
{
  unsigned long mask=1<<irq;
 1000058:	e3a03001 	mov	r3, #1	; 0x1
 100005c:	e1a03013 	mov	r3, r3, lsl r0
  *(volatile unsigned int  *)AIC_IDCR=mask;  
 1000060:	e3e02eed 	mvn	r2, #3792	; 0xed0
 1000064:	e502300b 	str	r3, [r2, -#11]
}
 1000068:	e91ba800 	ldmdb	r11, {r11, sp, pc}

0100006c <at91_unmask_irq>:
 100006c:	e1a0c00d 	mov	r12, sp
 1000070:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
 1000074:	e24cb004 	sub	r11, r12, #4	; 0x4

void at91_unmask_irq(unsigned int irq)
{
   unsigned long mask=1<<irq;
   *(volatile unsigned int  *)AIC_IECR=mask;
 1000078:	e3a02489 	mov	r2, #-1996488704	; 0x89000000
 100007c:	e1a029c2 	mov	r2, r2, asr #19
 1000080:	e3a03001 	mov	r3, #1	; 0x1
 1000084:	e1a03013 	mov	r3, r3, lsl r0
 1000088:	e5823000 	str	r3, [r2]
}
 100008c:	e91ba800 	ldmdb	r11, {r11, sp, pc}

01000090 <at91_mask_ack_irq>:
 1000090:	e1a0c00d 	mov	r12, sp
 1000094:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
 1000098:	e24cb004 	sub	r11, r12, #4	; 0x4

void at91_mask_ack_irq(unsigned int irq)
{
   at91_mask_irq(irq);
 100009c:	ebffffea 	bl	100004c <at91_mask_irq>
   *(volatile unsigned int  *)AIC_EOICR=0x00;
 10000a0:	e3e02d3b 	mvn	r2, #3776	; 0xec0
 10000a4:	e3a03000 	mov	r3, #0	; 0x0
 10000a8:	e502300f 	str	r3, [r2, -#15]
 10000ac:	e91ba800 	ldmdb	r11, {r11, sp, pc}

010000b0 <at91_request_irq>:
 10000b0:	e1a0c00d 	mov	r12, sp
 10000b4:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
 10000b8:	e24cb004 	sub	r11, r12, #4	; 0x4
}

int at91_request_irq(unsigned int irq_num,void *irq_isr)
{
 10000bc:	e1a02000 	mov	r2, r0
   if(irq_num>0&&irq_num<32)
 10000c0:	e2423001 	sub	r3, r2, #1	; 0x1
 10000c4:	e353001e 	cmp	r3, #30	; 0x1e
   {
     svr[irq_num] = (unsigned long)irq_isr;
     return 1;
   }
   else
   return -1;
 10000c8:	83e00000 	mvnhi	r0, #0	; 0x0
 10000cc:	891ba800 	ldmhidb	r11, {r11, sp, pc}
 10000d0:	e59f3008 	ldr	r3, [pc, #8]	; 10000e0 <at91_request_irq+0x30>
 10000d4:	e3a00001 	mov	r0, #1	; 0x1
 10000d8:	e7831102 	str	r1, [r3, r2, lsl #2]
 10000dc:	e91ba800 	ldmdb	r11, {r11, sp, pc}
 10000e0:	01004038 	tsteq	r0, r8, lsr r0

010000e4 <at91_release_irq>:
 10000e4:	e1a0c00d 	mov	r12, sp
 10000e8:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
 10000ec:	e24cb004 	sub	r11, r12, #4	; 0x4
}

int at91_release_irq(unsigned int irq_num)
{
	 
   if(irq_num>0&&irq_num<32)
 10000f0:	e2403001 	sub	r3, r0, #1	; 0x1
 10000f4:	e353001e 	cmp	r3, #30	; 0x1e
 10000f8:	8a000008 	bhi	1000120 <at91_release_irq+0x3c>
   {
   	 if( svr[irq_num] != 0)
 10000fc:	e59f1024 	ldr	r1, [pc, #24]	; 1000128 <at91_release_irq+0x44>
 1000100:	e1a02100 	mov	r2, r0, lsl #2
 1000104:	e7913002 	ldr	r3, [r1, r2]
 1000108:	e3530000 	cmp	r3, #0	; 0x0
   	 	{
        svr[irq_num] = (unsigned long)0;
        return 1;
 100010c:	13a00001 	movne	r0, #1	; 0x1
 1000110:	13a03000 	movne	r3, #0	; 0x0
 1000114:	17813002 	strne	r3, [r1, r2]
      }
      else
      	return -1;
 1000118:	03e00000 	mvneq	r0, #0	; 0x0
 100011c:	e91ba800 	ldmdb	r11, {r11, sp, pc}
   }
   else
     return -1;
 1000120:	e3e00000 	mvn	r0, #0	; 0x0
 1000124:	e91ba800 	ldmdb	r11, {r11, sp, pc}
 1000128:	01004038 	tsteq	r0, r8, lsr r0

0100012c <at91_init_aic>:
 100012c:	e1a0c00d 	mov	r12, sp
 1000130:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
 1000134:	e24cb004 	sub	r11, r12, #4	; 0x4
}

void at91_init_aic(void)
{
   int irqnum;
   *(volatile unsigned int  *)AIC_IDCR=0xffffffff;
   *(volatile unsigned int  *)AIC_ICCR=0xffffffff;
   for(irqnum=0;irqnum<32;irqnum++) *(volatile unsigned int  *)AIC_EOICR=irqnum;
 1000138:	e3a01000 	mov	r1, #0	; 0x0
 100013c:	e3e02eed 	mvn	r2, #3792	; 0xed0
 1000140:	e3e03000 	mvn	r3, #0	; 0x0
 1000144:	e502300b 	str	r3, [r2, -#11]
 1000148:	e3e00d3b 	mvn	r0, #3776	; 0xec0
 100014c:	e5023007 	str	r3, [r2, -#7]
 1000150:	e500100f 	str	r1, [r0, -#15]
 1000154:	e2811001 	add	r1, r1, #1	; 0x1
 1000158:	e351001f 	cmp	r1, #31	; 0x1f
 100015c:	dafffffb 	ble	1000150 <at91_init_aic+0x24>
   for(irqnum=0;irqnum<32;irqnum++) *(volatile unsigned int  *)(AIC_SMR(irqnum))=at91_irq_prtable[irqnum] | EdgeTriggered;
 1000160:	e3a01000 	mov	r1, #0	; 0x0
 1000164:	e3a02102 	mov	r2, #-2147483648	; 0x80000000
 1000168:	e1a029c2 	mov	r2, r2, asr #19
 100016c:	e59f0018 	ldr	r0, [pc, #18]	; 100018c <at91_init_aic+0x60>
 1000170:	e7d03001 	ldrb	r3, [r0, r1]
 1000174:	e3833020 	orr	r3, r3, #32	; 0x20
 1000178:	e7823101 	str	r3, [r2, r1, lsl #2]
 100017c:	e2811001 	add	r1, r1, #1	; 0x1
 1000180:	e351001f 	cmp	r1, #31	; 0x1f
 1000184:	dafffff9 	ble	1000170 <at91_init_aic+0x44>
}
 1000188:	e91ba800 	ldmdb	r11, {r11, sp, pc}
 100018c:	01004008 	tsteq	r0, r8

01000190 <at91_del_timer>:
 1000190:	e1a0c00d 	mov	r12, sp
 1000194:	e92dd8f0 	stmdb	sp!, {r4, r5, r6, r7, r11, r12, lr, pc}
 1000198:	e24cb004 	sub	r11, r12, #4	; 0x4
extern unsigned long svr[32];

int at91_del_timer(unsigned char TimerNum)
{
  register volatile struct at91_timers* tt=(struct at91_timers*)(AT91_TC_BASE);
 100019c:	e3a05102 	mov	r5, #-2147483648	; 0x80000000
 10001a0:	e1a05745 	mov	r5, r5, asr #14
 10001a4:	e20000ff 	and	r0, r0, #255	; 0xff
  register volatile struct at91_timer_channel* tc = &tt->chans[TimerNum].ch;
 10001a8:	e1a06300 	mov	r6, r0, lsl #6
 10001ac:	e0867005 	add	r7, r6, r5

  if(TimerNum>2)
 10001b0:	e3500002 	cmp	r0, #2	; 0x2
 10001b4:	8a00000a 	bhi	10001e4 <at91_del_timer+0x54>
  	 return -1; 

  at91_mask_irq(TimerNum+4);
 10001b8:	e2804004 	add	r4, r0, #4	; 0x4
 10001bc:	e1a00004 	mov	r0, r4
 10001c0:	ebffffa1 	bl	100004c <at91_mask_irq>

  tc->ccr= 0x02;
  tc->rc = 0;

  at91_release_irq(TimerNum+4);
 10001c4:	e1a00004 	mov	r0, r4
 10001c8:	e3a03002 	mov	r3, #2	; 0x2
 10001cc:	e7863005 	str	r3, [r6, r5]
 10001d0:	e3a02000 	mov	r2, #0	; 0x0
 10001d4:	e587201c 	str	r2, [r7, #28]
 10001d8:	ebffffc1 	bl	10000e4 <at91_release_irq>
    
  return 1; 	
 10001dc:	e3a00001 	mov	r0, #1	; 0x1
 10001e0:	e91ba8f0 	ldmdb	r11, {r4, r5, r6, r7, r11, sp, pc}
 10001e4:	e3e00000 	mvn	r0, #0	; 0x0
}
 10001e8:	e91ba8f0 	ldmdb	r11, {r4, r5, r6, r7, r11, sp, pc}

010001ec <at91_set_timer>:
 10001ec:	e1a0c00d 	mov	r12, sp
 10001f0:	e92dd830 	stmdb	sp!, {r4, r5, r11, r12, lr, pc}
 10001f4:	e24cb004 	sub	r11, r12, #4	; 0x4

int at91_set_timer(at91_timer_param param)
{
 10001f8:	e24b3020 	sub	r3, r11, #32	; 0x20
 10001fc:	e24dd00c 	sub	sp, sp, #12	; 0xc
 1000200:	e8830007 	stmia	r3, {r0, r1, r2}
  register volatile struct at91_timers* tt=(struct at91_timers*)(AT91_TC_BASE);
 1000204:	e3a04102 	mov	r4, #-2147483648	; 0x80000000
  register volatile struct at91_timer_channel* tc = &tt->chans[param.TimerNum].ch;
 1000208:	e51b0020 	ldr	r0, [r11, -#32]
 100020c:	e1a04744 	mov	r4, r4, asr #14
  unsigned long v;
  if(param.TimerNum>2 || param.CycleTime==0 || param.irq_svr==0)
 1000210:	e3500002 	cmp	r0, #2	; 0x2
 1000214:	e0845300 	add	r5, r4, r0, lsl #6
 1000218:	8a00001c 	bhi	1000290 <at91_set_timer+0xa4>
 100021c:	e51b301c 	ldr	r3, [r11, -#28]
 1000220:	e3530000 	cmp	r3, #0	; 0x0
 1000224:	0a000019 	beq	1000290 <at91_set_timer+0xa4>
 1000228:	e51b1018 	ldr	r1, [r11, -#24]
 100022c:	e3510000 	cmp	r1, #0	; 0x0
 1000230:	0a000016 	beq	1000290 <at91_set_timer+0xa4>
  	 return -1; 
  	 
  at91_request_irq(param.TimerNum+4,param.irq_svr);
 1000234:	e2800004 	add	r0, r0, #4	; 0x4
 1000238:	ebffff9c 	bl	10000b0 <at91_request_irq>

  tt->bcr=0;
 100023c:	e3a03000 	mov	r3, #0	; 0x0
 1000240:	e58430c0 	str	r3, [r4, #192]
  switch(param.TimerNum)
 1000244:	e51b3020 	ldr	r3, [r11, -#32]
 1000248:	e3530001 	cmp	r3, #1	; 0x1
 100024c:	0a000007 	beq	1000270 <at91_set_timer+0x84>
 1000250:	3a000002 	bcc	1000260 <at91_set_timer+0x74>
 1000254:	e3530002 	cmp	r3, #2	; 0x2
 1000258:	0a000008 	beq	1000280 <at91_set_timer+0x94>
 100025c:	ea00000b 	b	1000290 <at91_set_timer+0xa4>
  {
  	case 0: 
  		v=tt->bmr&0xfc;