ddma.lst

au1200下的boot代码

 393:/mnt/hgfs/boot/booter/source/ddma.c ****  *     Returns :
 394:/mnt/hgfs/boot/booter/source/ddma.c ****  *      TRUE		On Success
 395:/mnt/hgfs/boot/booter/source/ddma.c ****  *		FALSE		On Failure
 396:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 397:/mnt/hgfs/boot/booter/source/ddma.c ****  */
 398:/mnt/hgfs/boot/booter/source/ddma.c **** int ddma_lit_wr( void *channel, void *dst, uint32 size )
 399:/mnt/hgfs/boot/booter/source/ddma.c **** {	
 672              		.loc 1 399 0
 673              		.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
 674              		.mask	0x80070000,-4
 675              		.fmask	0x00000000,0
 676              		.set	noreorder
 677              		.set	nomacro
 678              		
 679 04ac E0FFBD27 		addiu	$sp,$sp,-32
 680              	$LCFI22:
GAS LISTING /tmp/ccEQxguf.s 			page 20


 681 04b0 1800B2AF 		sw	$18,24($sp)
 682              	$LCFI23:
 683 04b4 1400B1AF 		sw	$17,20($sp)
 684              	$LCFI24:
 685 04b8 1000B0AF 		sw	$16,16($sp)
 686              	$LCFI25:
 687 04bc 2188A000 		move	$17,$5
 688 04c0 21808000 		move	$16,$4
 689 04c4 1C00BFAF 		sw	$31,28($sp)
 690              	$LCFI26:
 691              		.loc 1 399 0
 400:/mnt/hgfs/boot/booter/source/ddma.c **** 	DDMA_DESCRIPTOR *d;
 401:/mnt/hgfs/boot/booter/source/ddma.c **** 	
 402:/mnt/hgfs/boot/booter/source/ddma.c **** 	d = ddma_next_descriptor( channel );
 692              		.loc 1 402 0
 693 04c8 0000000C 		jal	ddma_next_descriptor
 694 04cc 2190C000 		move	$18,$6
 695              	
 696 04d0 21284000 		move	$5,$2
 403:/mnt/hgfs/boot/booter/source/ddma.c **** 	if ( NULL == d ) return FALSE;
 404:/mnt/hgfs/boot/booter/source/ddma.c **** #ifdef DEBUG
 405:/mnt/hgfs/boot/booter/source/ddma.c **** 	printf("ddma_lit_wr: Using %X\n", d );
 406:/mnt/hgfs/boot/booter/source/ddma.c **** #endif
 407:/mnt/hgfs/boot/booter/source/ddma.c **** 	if ( NULL != dst ) 
 408:/mnt/hgfs/boot/booter/source/ddma.c **** 		d->u.std.dest0 = ~0xA0000000 & (uint32)dst;
 409:/mnt/hgfs/boot/booter/source/ddma.c **** 	d->u.std.cmd1 = size;
 410:/mnt/hgfs/boot/booter/source/ddma.c **** 
 411:/mnt/hgfs/boot/booter/source/ddma.c **** 	// We could allow user to use 4 bytes of the context 
 412:/mnt/hgfs/boot/booter/source/ddma.c **** //	d->c.p = context;
 413:/mnt/hgfs/boot/booter/source/ddma.c **** 
 414:/mnt/hgfs/boot/booter/source/ddma.c **** 	d->u.std.cmd0 |= DDMA_DESCCMD_V;
 415:/mnt/hgfs/boot/booter/source/ddma.c **** 	ddma_doorbell( (CHANNEL*)channel );
 697              		.loc 1 415 0
 698 04d4 21200002 		move	$4,$16
 699              		.loc 1 403 0
 700 04d8 0E00A010 		beq	$5,$0,$L56
 701 04dc 21100000 		move	$2,$0
 702              	
 703              		.loc 1 408 0
 704 04e0 FF5F023C 		li	$2,1610547200			# 0x5fff0000
 705 04e4 FFFF4234 		ori	$2,$2,0xffff
 706              		.loc 1 407 0
 707 04e8 02002012 		beq	$17,$0,$L58
 708 04ec 24102202 		and	$2,$17,$2
 709              	
 710              		.loc 1 408 0
 711 04f0 1000A2AC 		sw	$2,16($5)
 712              	$L58:
 713              		.loc 1 409 0
 714 04f4 0400B2AC 		sw	$18,4($5)
 715              		.loc 1 414 0
 716 04f8 0000A28C 		lw	$2,0($5)
 717 04fc 0080033C 		li	$3,-2147483648			# 0xffffffff80000000
 718 0500 25104300 		or	$2,$2,$3
 719 0504 0000A2AC 		sw	$2,0($5)
 720              		.loc 1 415 0
 721 0508 0000000C 		jal	ddma_doorbell
GAS LISTING /tmp/ccEQxguf.s 			page 21


 722 050c 00000000 		nop
 723              	
 416:/mnt/hgfs/boot/booter/source/ddma.c **** 
 417:/mnt/hgfs/boot/booter/source/ddma.c **** 	return TRUE;
 724              		.loc 1 417 0
 725 0510 01000224 		li	$2,1			# 0x1
 726              	$L56:
 418:/mnt/hgfs/boot/booter/source/ddma.c **** }
 727              		.loc 1 418 0
 728 0514 1C00BF8F 		lw	$31,28($sp)
 729 0518 1800B28F 		lw	$18,24($sp)
 730 051c 1400B18F 		lw	$17,20($sp)
 731 0520 1000B08F 		lw	$16,16($sp)
 732 0524 0800E003 		j	$31
 733 0528 2000BD27 		addiu	$sp,$sp,32
 734              	
 735              		.set	macro
 736              		.set	reorder
 737              	$LFE11:
 738              		.end	ddma_lit_wr
 739              		.align	2
 740              		.globl	ddma_tx
 741              		.ent	ddma_tx
 742              		.type	ddma_tx, @function
 743              	ddma_tx:
 744              	$LFB12:
 419:/mnt/hgfs/boot/booter/source/ddma.c **** 
 420:/mnt/hgfs/boot/booter/source/ddma.c **** /*
 421:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Function   :   ddma_tx
 422:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 423:/mnt/hgfs/boot/booter/source/ddma.c ****  *      This function is a helper routine to place a user's buffer pointer
 424:/mnt/hgfs/boot/booter/source/ddma.c ****  *		in the descriptor. Set size attribute and ring the channel's 
 425:/mnt/hgfs/boot/booter/source/ddma.c ****  *		doorbell to begin transaction.
 426:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 427:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Parameters :
 428:/mnt/hgfs/boot/booter/source/ddma.c ****  *      channel		Pointer	to the ddma channel ( local struct )
 429:/mnt/hgfs/boot/booter/source/ddma.c ****  *		src			Pointer to the data
 430:/mnt/hgfs/boot/booter/source/ddma.c ****  *		dst			Pointer where the data should go -- useful for MEM->MEM ddma
 431:/mnt/hgfs/boot/booter/source/ddma.c ****  *		size		Size of the data in bytes
 432:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 433:/mnt/hgfs/boot/booter/source/ddma.c ****  *     Returns :
 434:/mnt/hgfs/boot/booter/source/ddma.c ****  *      TRUE		On Success
 435:/mnt/hgfs/boot/booter/source/ddma.c ****  *		FALSE		On Failure
 436:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 437:/mnt/hgfs/boot/booter/source/ddma.c ****  */
 438:/mnt/hgfs/boot/booter/source/ddma.c **** int ddma_tx( void *channel, void *src, void *dst, uint32 size )
 439:/mnt/hgfs/boot/booter/source/ddma.c **** {	
 745              		.loc 1 439 0
 746              		.frame	$sp,40,$31		# vars= 0, regs= 5/0, args= 16, gp= 0
 747              		.mask	0x800f0000,-8
 748              		.fmask	0x00000000,0
 749 052c D8FFBD27 		addiu	$sp,$sp,-40
 750              	$LCFI27:
 751 0530 1C00B3AF 		sw	$19,28($sp)
 752              	$LCFI28:
 753 0534 1800B2AF 		sw	$18,24($sp)
 754              	$LCFI29:
GAS LISTING /tmp/ccEQxguf.s 			page 22


 755 0538 1400B1AF 		sw	$17,20($sp)
 756              	$LCFI30:
 757 053c 1000B0AF 		sw	$16,16($sp)
 758              	$LCFI31:
 759 0540 21988000 		move	$19,$4
 760 0544 2180A000 		move	$16,$5
 761 0548 2000BFAF 		sw	$31,32($sp)
 762              	$LCFI32:
 763              		.loc 1 439 0
 764 054c 2188C000 		move	$17,$6
 440:/mnt/hgfs/boot/booter/source/ddma.c **** 	DDMA_DESCRIPTOR *d;
 441:/mnt/hgfs/boot/booter/source/ddma.c **** 	
 442:/mnt/hgfs/boot/booter/source/ddma.c **** 	d = ddma_next_descriptor( channel );
 765              		.loc 1 442 0
 766              		.set	noreorder
 767              		.set	nomacro
 768 0550 0000000C 		jal	ddma_next_descriptor
 769 0554 2190E000 		move	$18,$7
 770              		.set	macro
 771              		.set	reorder
 772              	
 773 0558 21204000 		move	$4,$2
 443:/mnt/hgfs/boot/booter/source/ddma.c **** 	if ( NULL == d ) return FALSE;
 444:/mnt/hgfs/boot/booter/source/ddma.c **** #ifdef DEBUG
 445:/mnt/hgfs/boot/booter/source/ddma.c **** 	printf("ddma_tx: Using %X\n", d );
 446:/mnt/hgfs/boot/booter/source/ddma.c **** #endif
 447:/mnt/hgfs/boot/booter/source/ddma.c ****   	d->u.std.source0 = ~0xA0000000 & (uint32)src;
 774              		.loc 1 447 0
 775 055c FF5F023C 		li	$2,1610547200			# 0x5fff0000
 776 0560 FFFF4334 		ori	$3,$2,0xffff
 777 0564 24800302 		and	$16,$16,$3
 778              		.loc 1 443 0
 779              		.set	noreorder
 780              		.set	nomacro
 781 0568 0F008010 		beq	$4,$0,$L59
 782 056c 21100000 		move	$2,$0
 783              		.set	macro
 784              		.set	reorder
 785              	
 448:/mnt/hgfs/boot/booter/source/ddma.c **** 	if ( NULL != dst ) 
 449:/mnt/hgfs/boot/booter/source/ddma.c **** 		d->u.std.dest0 = ~0xA0000000 & (uint32)dst;
 786              		.loc 1 449 0
 787 0570 24102302 		and	$2,$17,$3
 788              		.loc 1 447 0
 789 0574 080090AC 		sw	$16,8($4)
 790              		.loc 1 448 0
 791 0578 02002012 		beq	$17,$0,$L61
 791      00000000 
 792              		.loc 1 449 0
 793 0580 100082AC 		sw	$2,16($4)
 794              	$L61:
 450:/mnt/hgfs/boot/booter/source/ddma.c **** 	d->u.std.cmd1 = size;
 795              		.loc 1 450 0
 796 0584 040092AC 		sw	$18,4($4)
 451:/mnt/hgfs/boot/booter/source/ddma.c **** 
 452:/mnt/hgfs/boot/booter/source/ddma.c **** 	// We could allow user to use 4 bytes of the context 
 453:/mnt/hgfs/boot/booter/source/ddma.c **** //	d->c.p = context;
GAS LISTING /tmp/ccEQxguf.s 			page 23


 454:/mnt/hgfs/boot/booter/source/ddma.c **** 
 455:/mnt/hgfs/boot/booter/source/ddma.c **** 	d->u.std.cmd0 |= DDMA_DESCCMD_V;
 797              		.loc 1 455 0
 798 0588 0000828C 		lw	$2,0($4)
 799 058c 0080033C 		li	$3,-2147483648			# 0xffffffff80000000
 800 0590 25104300 		or	$2,$2,$3
 801 0594 000082AC 		sw	$2,0($4)
 456:/mnt/hgfs/boot/booter/source/ddma.c **** #ifdef DEBUG
 457:/mnt/hgfs/boot/booter/source/ddma.c **** 	printf("ddma_tx: cmd0 == %X\n", d->u.std.cmd0 );
 458:/mnt/hgfs/boot/booter/source/ddma.c **** #endif
 459:/mnt/hgfs/boot/booter/source/ddma.c **** 	asm("sync");
 802              		.loc 1 459 0
 803              	#APP
 804 0598 0F000000 		sync
 460:/mnt/hgfs/boot/booter/source/ddma.c **** 	ddma_doorbell( (CHANNEL*)channel );
 805              		.loc 1 460 0
 806              	#NO_APP
 807              		.set	noreorder
 808              		.set	nomacro
 809 059c 0000000C 		jal	ddma_doorbell
 810 05a0 21206002 		move	$4,$19
 811              		.set	macro
 812              		.set	reorder
 813              	
 461:/mnt/hgfs/boot/booter/source/ddma.c **** 
 462:/mnt/hgfs/boot/booter/source/ddma.c **** 	return TRUE;
 814              		.loc 1 462 0
 815 05a4 01000224 		li	$2,1			# 0x1
 816              	$L59:
 463:/mnt/hgfs/boot/booter/source/ddma.c **** }
 817              		.loc 1 463 0
 818 05a8 2000BF8F 		lw	$31,32($sp)
 819 05ac 1C00B38F 		lw	$19,28($sp)
 820 05b0 1800B28F 		lw	$18,24($sp)
 821 05b4 1400B18F 		lw	$17,20($sp)
 822 05b8 1000B08F 		lw	$16,16($sp)
 823              		.set	noreorder
 824              		.set	nomacro
 825 05bc 0800E003 		j	$31
 826 05c0 2800BD27 		addiu	$sp,$sp,40
 827              		.set	macro
 828              		.set	reorder
 829              	
 830              	$LFE12:
 831              		.end	ddma_tx
 832              		.align	2
 833              		.globl	ddma_rx
 834              		.ent	ddma_rx
 835              		.type	ddma_rx, @function
 836              	ddma_rx:
 837              	$LFB13:
 464:/mnt/hgfs/boot/booter/source/ddma.c **** 
 465:/mnt/hgfs/boot/booter/source/ddma.c **** /*
 466:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Function   :   ddma_rx
 467:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 468:/mnt/hgfs/boot/booter/source/ddma.c ****  *      This function is a helper routine to place a user's buffer pointer
 469:/mnt/hgfs/boot/booter/source/ddma.c ****  *		in the descriptor. Set size attribute and ring the channel's 
GAS LISTING /tmp/ccEQxguf.s 			page 24


 470:/mnt/hgfs/boot/booter/source/ddma.c ****  *		doorbell to begin transaction.
 471:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 472:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Parameters :
 473:/mnt/hgfs/boot/booter/source/ddma.c ****  *      channel		Pointer	to the ddma channel ( local struct )
 474:/mnt/hgfs/boot/booter/source/ddma.c ****  * 		dest		Pointer to the destination data
 475:/mnt/hgfs/boot/booter/source/ddma.c ****  *		size		Size of the data in bytes
 476:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 477:/mnt/hgfs/boot/booter/source/ddma.c ****  *     Returns :
 478:/mnt/hgfs/boot/booter/source/ddma.c ****  *      TRUE		On Success
 479:/mnt/hgfs/boot/booter/source/ddma.c ****  *		FALSE		On Failure
 480:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 481:/mnt/hgfs/boot/booter/source/ddma.c ****  */
 482:/mnt/hgfs/boot/booter/source/ddma.c **** int ddma_rx( void *channel, void *dst, uint32 size )
 483:/mnt/hgfs/boot/booter/source/ddma.c **** {	
 838              		.loc 1 483 0
 839              		.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
 840              		.mask	0x80070000,-4
 841              		.fmask	0x00000000,0
 842              		.set	noreorder
 843              		.set	nomacro
 844              		
 845 05c4 E0