ddma2.lst

au1200下的boot代码

 660 03c8 0C00908E 		lw	$16,12($20)
 661              		.loc 1 207 0
 662 03cc 00006426 		addiu	$4,$19,%lo($LC2)
 663 03d0 0000000C 		jal	printf
 664 03d4 21280002 		move	$5,$16
 665              	
 666              		.loc 1 208 0
 667 03d8 1C00028E 		lw	$2,28($16)
 668 03dc 40110200 		sll	$2,$2,5
 669 03e0 21105100 		addu	$2,$2,$17
 670              		.loc 1 210 0
 671              		.loc 1 208 0
 672 03e4 F6FF5014 		bne	$2,$16,$L34
 673 03e8 0000043C 		lui	$4,%hi($LC3)
 674              	
 675              	$L40:
 676              		.loc 1 210 0
 677 03ec 2400BF8F 		lw	$31,36($sp)
 678 03f0 2000B48F 		lw	$20,32($sp)
 679 03f4 1C00B38F 		lw	$19,28($sp)
 680 03f8 1800B28F 		lw	$18,24($sp)
 681 03fc 1400B18F 		lw	$17,20($sp)
 682 0400 1000B08F 		lw	$16,16($sp)
 683 0404 00008424 		addiu	$4,$4,%lo($LC3)
 684 0408 00000008 		j	printf
 685 040c 2800BD27 		addiu	$sp,$sp,40
 686              	
 687              		.set	macro
 688              		.set	reorder
 689              	$LFE18:
 690              		.end	ddma2_print_descriptor_chain
 691              		.align	2
 692              		.globl	ddma2_interrupt
GAS LISTING /tmp/ccSUImwK.s 			page 17


 693              		.ent	ddma2_interrupt
 694              		.type	ddma2_interrupt, @function
 695              	ddma2_interrupt:
 696              	$LFB19:
 211:/mnt/hgfs/boot/booter/source/ddma2.c **** }
 212:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 213:/mnt/hgfs/boot/booter/source/ddma2.c **** /*
 214:/mnt/hgfs/boot/booter/source/ddma2.c ****  *   Function   :   au1550_ddma2_interrupt
 215:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
 216:/mnt/hgfs/boot/booter/source/ddma2.c ****  *      This function is responsible for handling DDMA interrupts.
 217:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
 218:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		User specified callbacks can be used for application processing at
 219:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		interrupt time.
 220:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
 221:/mnt/hgfs/boot/booter/source/ddma2.c ****  *   Parameters :
 222:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
 223:/mnt/hgfs/boot/booter/source/ddma2.c ****  *     Returns :
 224:/mnt/hgfs/boot/booter/source/ddma2.c ****  *      Nothing
 225:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
 226:/mnt/hgfs/boot/booter/source/ddma2.c ****  */
 227:/mnt/hgfs/boot/booter/source/ddma2.c **** void ddma2_interrupt( int irq, void *dev_id )
 228:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 697              		.loc 1 228 0
 698              		.frame	$sp,48,$31		# vars= 0, regs= 7/0, args= 16, gp= 0
 699              		.mask	0x803f0000,-8
 700              		.fmask	0x00000000,0
 701              		.set	noreorder
 702              		.set	nomacro
 703              		
 704 0410 D0FFBD27 		addiu	$sp,$sp,-48
 705              	$LCFI15:
 706 0414 1C00B3AF 		sw	$19,28($sp)
 707              	$LCFI16:
 229:/mnt/hgfs/boot/booter/source/ddma2.c **** 	CHANNEL	*channels = (CHANNEL*)dev_id;
 230:/mnt/hgfs/boot/booter/source/ddma2.c **** 	int i;
 231:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 232:/mnt/hgfs/boot/booter/source/ddma2.c **** 	for( i = 0; i < DDMA_NUM_CHANNELS && ddma->intstat; i++ )
 708              		.loc 1 232 0
 709 0418 0000133C 		lui	$19,%hi(ddma)
 710 041c 0000638E 		lw	$3,%lo(ddma)($19)
 711              		.loc 1 228 0
 712 0420 1800B2AF 		sw	$18,24($sp)
 713              	$LCFI17:
 714 0424 2800BFAF 		sw	$31,40($sp)
 715              	$LCFI18:
 716 0428 2400B5AF 		sw	$21,36($sp)
 717              	$LCFI19:
 718 042c 2000B4AF 		sw	$20,32($sp)
 719              	$LCFI20:
 720 0430 1400B1AF 		sw	$17,20($sp)
 721              	$LCFI21:
 722 0434 1000B0AF 		sw	$16,16($sp)
 723              	$LCFI22:
 724              		.loc 1 232 0
 725 0438 0410628C 		lw	$2,4100($3)
 726 043c 20004010 		beq	$2,$0,$L43
 727 0440 21900000 		move	$18,$0
GAS LISTING /tmp/ccSUImwK.s 			page 18


 728              	
 729 0444 2180A000 		move	$16,$5
 730 0448 21A86002 		move	$21,$19
 731 044c 24010008 		j	$L47
 732 0450 01001424 		li	$20,1			# 0x1
 733              	
 734              	$L46:
 233:/mnt/hgfs/boot/booter/source/ddma2.c **** 	{
 234:/mnt/hgfs/boot/booter/source/ddma2.c **** 		if ( ddma->intstat & (1 << i) )
 235:/mnt/hgfs/boot/booter/source/ddma2.c **** 		{
 236:/mnt/hgfs/boot/booter/source/ddma2.c **** 			//channels[i].d_head = NULL;	//All descriptors have been transfered
 237:/mnt/hgfs/boot/booter/source/ddma2.c **** 			//channels[i].d_tail = NULL;
 238:/mnt/hgfs/boot/booter/source/ddma2.c **** 			//ddma2_disable_channel(i);
 239:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 240:/mnt/hgfs/boot/booter/source/ddma2.c **** 			// Call user's callback routine
 241:/mnt/hgfs/boot/booter/source/ddma2.c **** 			if ( NULL != channels[i].callback )
 242:/mnt/hgfs/boot/booter/source/ddma2.c **** 				channels[i].callback( (CHANNEL_ID) i, channels[i].callback_arg );
 243:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 244:/mnt/hgfs/boot/booter/source/ddma2.c **** 			// clear interrupt bits
 245:/mnt/hgfs/boot/booter/source/ddma2.c **** 			ddma->intstat &= ~(1 << i);
 735              		.loc 1 245 0
 736 0454 0000A48E 		lw	$4,%lo(ddma)($21)
 737              	$L49:
 246:/mnt/hgfs/boot/booter/source/ddma2.c **** 			channels[i].ptr->irq = 0;	
 738              		.loc 1 246 0
 739 0458 0000058E 		lw	$5,0($16)
 740              		.loc 1 245 0
 741 045c 27181100 		nor	$3,$0,$17
 742 0460 0410828C 		lw	$2,4100($4)
 743 0464 24104300 		and	$2,$2,$3
 744 0468 041082AC 		sw	$2,4100($4)
 745              		.loc 1 246 0
 746 046c 1000A0AC 		sw	$0,16($5)
 747              	$L44:
 748              		.loc 1 232 0
 749 0470 01005226 		addiu	$18,$18,1
 750 0474 1000422A 		slt	$2,$18,16
 751 0478 11004010 		beq	$2,$0,$L43
 752 047c 30001026 		addiu	$16,$16,48
 753              	
 754 0480 0000638E 		lw	$3,%lo(ddma)($19)
 755 0484 0410628C 		lw	$2,4100($3)
 756 0488 0E004010 		beq	$2,$0,$L50
 757 048c 2800BF8F 		lw	$31,40($sp)
 758              	
 759              	$L47:
 760              		.loc 1 234 0
 761 0490 0410628C 		lw	$2,4100($3)
 762 0494 04885402 		sll	$17,$20,$18
 763 0498 24105100 		and	$2,$2,$17
 764 049c F4FF4010 		beq	$2,$0,$L44
 765 04a0 00000000 		nop
 766              	
 767              		.loc 1 241 0
 768 04a4 1800028E 		lw	$2,24($16)
 769              		.loc 1 242 0
 770              		.loc 1 241 0
GAS LISTING /tmp/ccSUImwK.s 			page 19


 771 04a8 EAFF4010 		beq	$2,$0,$L46
 772 04ac 21204002 		move	$4,$18
 773              	
 774              		.loc 1 242 0
 775 04b0 09F84000 		jal	$2
 776 04b4 1C00058E 		lw	$5,28($16)
 777              	
 778              		.loc 1 245 0
 779 04b8 16010008 		j	$L49
 780 04bc 0000A48E 		lw	$4,%lo(ddma)($21)
 781              	
 782              	$L43:
 783              		.loc 1 232 0
 784 04c0 2800BF8F 		lw	$31,40($sp)
 785              	$L50:
 786 04c4 2400B58F 		lw	$21,36($sp)
 787 04c8 2000B48F 		lw	$20,32($sp)
 788 04cc 1C00B38F 		lw	$19,28($sp)
 789 04d0 1800B28F 		lw	$18,24($sp)
 790 04d4 1400B18F 		lw	$17,20($sp)
 791 04d8 1000B08F 		lw	$16,16($sp)
 792 04dc 0800E003 		j	$31
 793 04e0 3000BD27 		addiu	$sp,$sp,48
 794              	
 795              		.set	macro
 796              		.set	reorder
 797              	$LFE19:
 798              		.end	ddma2_interrupt
 799              		.align	2
 800              		.globl	ddma2_enable_descriptor_interrupt
 801              		.ent	ddma2_enable_descriptor_interrupt
 802              		.type	ddma2_enable_descriptor_interrupt, @function
 803              	ddma2_enable_descriptor_interrupt:
 804              	$LFB20:
 247:/mnt/hgfs/boot/booter/source/ddma2.c **** 		}
 248:/mnt/hgfs/boot/booter/source/ddma2.c **** 	}
 249:/mnt/hgfs/boot/booter/source/ddma2.c **** }
 250:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 251:/mnt/hgfs/boot/booter/source/ddma2.c **** void ddma2_enable_descriptor_interrupt(DDMA_DESCRIPTOR* desc)
 252:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 805              		.loc 1 252 0
 806              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
 807              		.mask	0x00000000,0
 808              		.fmask	0x00000000,0
 253:/mnt/hgfs/boot/booter/source/ddma2.c **** 	desc->u.std.cmd0 |= DDMA_DESCCMD_IE;	//Enable interrupt for this descriptor
 809              		.loc 1 253 0
 810 04e4 0000828C 		lw	$2,0($4)
 811 04e8 00014234 		ori	$2,$2,0x100
 812 04ec 000082AC 		sw	$2,0($4)
 254:/mnt/hgfs/boot/booter/source/ddma2.c **** 	asm("sync");
 813              		.loc 1 254 0
 814              	#APP
 815 04f0 0F000000 		sync
 816              	#NO_APP
 817 04f4 0800E003 		j	$31
 817      00000000 
 818              	$LFE20:
GAS LISTING /tmp/ccSUImwK.s 			page 20


 819              		.end	ddma2_enable_descriptor_interrupt
 820              		.align	2
 821              		.globl	ddma2_init
 822              		.ent	ddma2_init
 823              		.type	ddma2_init, @function
 824              	ddma2_init:
 825              	$LFB21:
 255:/mnt/hgfs/boot/booter/source/ddma2.c **** }
 256:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 257:/mnt/hgfs/boot/booter/source/ddma2.c **** int ddma2_init( void )
 258:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 826              		.loc 1 258 0
 827              		.frame	$sp,56,$31		# vars= 0, regs= 9/0, args= 16, gp= 0
 828              		.mask	0x80ff0000,-8
 829              		.fmask	0x00000000,0
 830              		.set	noreorder
 831              		.set	nomacro
 832              		
 833 04fc C8FFBD27 		addiu	$sp,$sp,-56
 834              	$LCFI23:
 259:/mnt/hgfs/boot/booter/source/ddma2.c **** 	DPRINTF("");
 260:/mnt/hgfs/boot/booter/source/ddma2.c **** 	int i;
 261:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 262:/mnt/hgfs/boot/booter/source/ddma2.c **** 	/*
 263:/mnt/hgfs/boot/booter/source/ddma2.c **** 	 *	Point our ddma structure to correct 
 264:/mnt/hgfs/boot/booter/source/ddma2.c **** 	 *	memory location
 265:/mnt/hgfs/boot/booter/source/ddma2.c **** 	 */
 266:/mnt/hgfs/boot/booter/source/ddma2.c **** //	ddma = (AU1X00_DDMA*)DDMA_PHYS_ADDRESS;
 267:/mnt/hgfs/boot/booter/source/ddma2.c **** 	ddma = (AU1X00_DDMA*)mapPhysicalAddress(DDMA_PHYS_ADDR, sizeof(AU1X00_DDMA), 0);
 835              		.loc 1 267 0
 836 0500 0014043C 		li	$4,335544320			# 0x14000000
 837              		.loc 1 258 0
 838 0504 2C00B7AF 		sw	$23,44($sp)
 839              	$LCFI24:
 840              		.loc 1 267 0
 841 0508 00208434 		ori	$4,$4,0x2000
 842 050c 21280000 		move	$5,$0
 843 0510 10100624 		li	$6,4112			# 0x1010
 844 0514 21380000 		move	$7,$0
 268:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 269:/mnt/hgfs/boot/booter/source/ddma2.c **** 	/*
 270:/mnt/hgfs/boot/booter/source/ddma2.c **** 	 *	Initialize the local channel status to 0s
 271:/mnt/hgfs/boot/booter/source/ddma2.c **** 	 */
 272:/mnt/hgfs/boot/booter/source/ddma2.c **** 	memset((void*)channels,0,sizeof(channels));
 845              		.loc 1 272 0
 846 0518 0000173C 		lui	$23,%hi(channels)
 847              		.loc 1 258 0
 848 051c 3000BFAF 		sw	$31,48($sp)
 849              	$LCFI25:
 850 0520 2800B6AF 		sw	$22,40($sp)
 851              	$LCFI26:
 852 0524 2400B5AF 		sw	$21,36($sp)
 853              	$LCFI27:
 854 0528 2000B4AF 		sw	$20,32($sp)
 855              	$LCFI28:
 856 052c 1C00B3AF 		sw	$19,28($sp)
 857              	$LCFI29:
GAS LISTING /tmp/ccSUImwK.s 			page 21


 858 0530 1800B2AF 		sw	$18,24($sp)
 859              	$LCFI30:
 860 0534 1400B1AF 		sw	$17,20($sp)
 861              	$LCFI31:
 862 0538 1000B0AF 		sw	$16,16($sp)
 863              	$LCFI32:
 864              		.loc 1 267 0
 865 053c 0000000C 		jal	mapPhysicalAddress
 866 0540 0000123C 		lui	$18,%hi(ddma)
 867              	
 868              		.loc 1 272 0
 869 0544 0000E426 		addiu	$4,$23,%lo(channels)
 870 0548 21280000 		move	$5,$0
 871 054c 00030624 		li	$6,768			# 0x300
 872              		.loc 1 267 0
 873              		.loc 1 272 0
 874 0550 0000000C 		jal	memset
 875 0554 000042AE 		sw	$2,%lo(ddma)($18)
 876              	
 877 0558 0000033C 		lui	$3,%hi(channels+32)
 878 055c FF5F023C 		li	$2,1610547200			# 0x5fff0000
 879 0560 20007624 		addiu	$22,$3,%lo(channels+32)
 880 0564 FFFF5534 		ori	$21,$2,0xffff
 273:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 274:/mnt/hgfs/boot/booter/source/ddma2.c **** 	for( i = 0; i < DDMA_NUM_CHANNELS; ++i )
 881              		.loc 1 274 0
 882 0568 21800000 		move	$16,$0
 883 056c 0000F426 		addiu	$20,$23,%lo(channels)
 884 0570 01001324 		li	$19,1			# 0x1
 885 0574 21880000 		move	$17,$0
 886              	$L56:
 275:/mnt/hgfs/boot/booter/source/ddma2.c **** 	{
 276:/mnt/hgfs/boot/booter/source/ddma2.c **** 		channels[i].ptr 			= &ddma->channel[i];