ddma.lst

au1200下的boot代码

 205:/mnt/hgfs/boot/booter/source/ddma.c **** 	 *  try to find that one. If it is not available return NULL
 206:/mnt/hgfs/boot/booter/source/ddma.c **** 	 */
 207:/mnt/hgfs/boot/booter/source/ddma.c **** 	if ( -1 != config->channel )
 325              		.loc 1 207 0
 326 0214 0800838C 		lw	$3,8($4)
 327 0218 FFFF0224 		li	$2,-1			# 0xffffffffffffffff
 328              		.loc 1 198 0
 329 021c 21588000 		move	$11,$4
 330              		.loc 1 199 0
 331              		.loc 1 207 0
 332 0220 2C006210 		beq	$3,$2,$L27
 333 0224 21500000 		move	$10,$0
 334              	
 208:/mnt/hgfs/boot/booter/source/ddma.c **** 	{
 209:/mnt/hgfs/boot/booter/source/ddma.c **** 		if ( TRUE == channels[config->channel].avail  ) 
 335              		.loc 1 209 0
 336 0228 40100300 		sll	$2,$3,1
 337 022c 21104300 		addu	$2,$2,$3
 338 0230 80100200 		sll	$2,$2,2
 339 0234 23104300 		subu	$2,$2,$3
 340 0238 0000033C 		lui	$3,%hi(channels)
 341 023c 80100200 		sll	$2,$2,2
 342 0240 04006324 		addiu	$3,$3,%lo(channels)
 343 0244 21284300 		addu	$5,$2,$3
 344 0248 0400A48C 		lw	$4,4($5)
 345 024c 01000224 		li	$2,1			# 0x1
 210:/mnt/hgfs/boot/booter/source/ddma.c **** 		{
 211:/mnt/hgfs/boot/booter/source/ddma.c **** 			chan = &channels[config->channel];
 212:/mnt/hgfs/boot/booter/source/ddma.c **** 			chan->avail = FALSE;
 213:/mnt/hgfs/boot/booter/source/ddma.c **** 	 	}
 214:/mnt/hgfs/boot/booter/source/ddma.c **** 		else
 215:/mnt/hgfs/boot/booter/source/ddma.c **** 			return NULL;
 346              		.loc 1 215 0
 347 0250 21180000 		move	$3,$0
 348              		.loc 1 211 0
 349              		.loc 1 209 0
 350 0254 1D008214 		bne	$4,$2,$L26
 351 0258 2150A000 		move	$10,$5
GAS LISTING /tmp/ccEQxguf.s 			page 11


 352              	
 353              	$L38:
 216:/mnt/hgfs/boot/booter/source/ddma.c **** 	}
 217:/mnt/hgfs/boot/booter/source/ddma.c **** 	else
 218:/mnt/hgfs/boot/booter/source/ddma.c **** 	{
 219:/mnt/hgfs/boot/booter/source/ddma.c **** 		/* Find an available channel for use */
 220:/mnt/hgfs/boot/booter/source/ddma.c **** 		for( i=DDMA_NUM_CHANNELS-1; i>=0; i--)
 221:/mnt/hgfs/boot/booter/source/ddma.c **** 			if ( TRUE == channels[i].avail ) 
 222:/mnt/hgfs/boot/booter/source/ddma.c **** 			{
 223:/mnt/hgfs/boot/booter/source/ddma.c **** 				chan = &channels[i];
 224:/mnt/hgfs/boot/booter/source/ddma.c **** 				chan->avail = FALSE;
 354              		.loc 1 224 0
 355 025c 040040AD 		sw	$0,4($10)
 356              	$L30:
 225:/mnt/hgfs/boot/booter/source/ddma.c **** 				break;
 226:/mnt/hgfs/boot/booter/source/ddma.c **** 			}
 227:/mnt/hgfs/boot/booter/source/ddma.c **** 	}
 228:/mnt/hgfs/boot/booter/source/ddma.c **** 	
 229:/mnt/hgfs/boot/booter/source/ddma.c **** 	chan->ring = chan->dt = chan->dh = config->descriptors;
 357              		.loc 1 229 0
 358 0260 0C00668D 		lw	$6,12($11)
 230:/mnt/hgfs/boot/booter/source/ddma.c **** 
 231:/mnt/hgfs/boot/booter/source/ddma.c **** 	/* Setup the channels intial descriptor pointer. */
 232:/mnt/hgfs/boot/booter/source/ddma.c **** 	chan->ptr->des_ptr = ~0xA0000000 & (uint32)chan->dh;
 359              		.loc 1 232 0
 360 0264 0000458D 		lw	$5,0($10)
 361 0268 FF5F033C 		li	$3,1610547200			# 0x5fff0000
 362 026c FFFF6334 		ori	$3,$3,0xffff
 363 0270 2410C300 		and	$2,$6,$3
 364 0274 0400A2AC 		sw	$2,4($5)
 233:/mnt/hgfs/boot/booter/source/ddma.c **** 
 234:/mnt/hgfs/boot/booter/source/ddma.c **** 	/* Install the user's specified parameters */
 235:/mnt/hgfs/boot/booter/source/ddma.c **** 	chan->ptr->cfg		= config->chan_cfg;
 365              		.loc 1 235 0
 366 0278 1400648D 		lw	$4,20($11)
 236:/mnt/hgfs/boot/booter/source/ddma.c **** 	chan->ptr->stat_ptr	= config->chan_stat;
 237:/mnt/hgfs/boot/booter/source/ddma.c **** 
 238:/mnt/hgfs/boot/booter/source/ddma.c **** 	/* Copy the user's callback to the local channel structure */
 239:/mnt/hgfs/boot/booter/source/ddma.c **** 	chan->callback = config->callback;
 240:/mnt/hgfs/boot/booter/source/ddma.c **** 	chan->arg = config->arg;
 241:/mnt/hgfs/boot/booter/source/ddma.c **** 
 242:/mnt/hgfs/boot/booter/source/ddma.c **** 	/* Enable interrupts for this channel */
 243:/mnt/hgfs/boot/booter/source/ddma.c **** 	i= (1<<((uint32) ((~0xA0000000 & (uint32)chan->ptr)-DDMA_PHYS_ADDR)/sizeof(DDMA_CHANNEL))); 
 244:/mnt/hgfs/boot/booter/source/ddma.c **** 	ddma->inten = ddma->inten | i;
 367              		.loc 1 244 0
 368 027c 0000023C 		lui	$2,%hi(ddma)
 369 0280 0000478C 		lw	$7,%lo(ddma)($2)
 370              		.loc 1 235 0
 371 0284 0000A4AC 		sw	$4,0($5)
 372              		.loc 1 236 0
 373 0288 1C00628D 		lw	$2,28($11)
 374              		.loc 1 243 0
 375 028c 2418A300 		and	$3,$5,$3
 376 0290 021A0300 		srl	$3,$3,8
 377              		.loc 1 236 0
 378 0294 0800A2AC 		sw	$2,8($5)
 379              		.loc 1 244 0
GAS LISTING /tmp/ccEQxguf.s 			page 12


 380 0298 0C10E48C 		lw	$4,4108($7)
 381              		.loc 1 240 0
 382 029c 0400688D 		lw	$8,4($11)
 383              		.loc 1 239 0
 384 02a0 0000658D 		lw	$5,0($11)
 385              		.loc 1 243 0
 386 02a4 01000224 		li	$2,1			# 0x1
 387 02a8 04486200 		sll	$9,$2,$3
 388              		.loc 1 244 0
 389 02ac 25208900 		or	$4,$4,$9
 390 02b0 0C10E4AC 		sw	$4,4108($7)
 391              		.loc 1 239 0
 392 02b4 240045AD 		sw	$5,36($10)
 393              		.loc 1 240 0
 394 02b8 280048AD 		sw	$8,40($10)
 395              		.loc 1 229 0
 396 02bc 1C0046AD 		sw	$6,28($10)
 397 02c0 200046AD 		sw	$6,32($10)
 398 02c4 180046AD 		sw	$6,24($10)
 245:/mnt/hgfs/boot/booter/source/ddma.c **** 
 246:/mnt/hgfs/boot/booter/source/ddma.c **** 	return chan;
 399              		.loc 1 246 0
 400 02c8 21184001 		move	$3,$10
 401              	$L26:
 247:/mnt/hgfs/boot/booter/source/ddma.c **** }
 402              		.loc 1 247 0
 403 02cc 0800E003 		j	$31
 404 02d0 21106000 		move	$2,$3
 405              	
 406              	$L27:
 407 02d4 0000023C 		lui	$2,%hi(channels)
 408 02d8 04004224 		addiu	$2,$2,%lo(channels)
 409 02dc 94024424 		addiu	$4,$2,660
 410              		.loc 1 220 0
 411 02e0 0F000924 		li	$9,15			# 0xf
 412 02e4 01000524 		li	$5,1			# 0x1
 413 02e8 BE000008 		j	$L35
 414 02ec 98024324 		addiu	$3,$2,664
 415              	
 416              	$L39:
 417 02f0 DBFF2005 		bltz	$9,$L30
 418 02f4 D4FF8424 		addiu	$4,$4,-44
 419              	
 420              	$L35:
 421              		.loc 1 221 0
 422 02f8 0000628C 		lw	$2,0($3)
 423              		.loc 1 220 0
 424 02fc FFFF2925 		addiu	$9,$9,-1
 425              		.loc 1 221 0
 426 0300 FBFF4514 		bne	$2,$5,$L39
 427 0304 D4FF6324 		addiu	$3,$3,-44
 428              	
 429              		.loc 1 223 0
 430 0308 97000008 		j	$L38
 431 030c 21508000 		move	$10,$4
 432              	
 433              		.set	macro
GAS LISTING /tmp/ccEQxguf.s 			page 13


 434              		.set	reorder
 435              	$LFE7:
 436              		.end	ddma_get_channel
 437              		.align	2
 438              		.globl	ddma_free_channel
 439              		.ent	ddma_free_channel
 440              		.type	ddma_free_channel, @function
 441              	ddma_free_channel:
 442              	$LFB8:
 248:/mnt/hgfs/boot/booter/source/ddma.c **** 
 249:/mnt/hgfs/boot/booter/source/ddma.c **** /*
 250:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Function   :   ddma_free_channel
 251:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 252:/mnt/hgfs/boot/booter/source/ddma.c ****  *      This function will free all resources with a specified channel.
 253:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 254:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Parameters :
 255:/mnt/hgfs/boot/booter/source/ddma.c ****  *      channel		Pointer
 256:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 257:/mnt/hgfs/boot/booter/source/ddma.c ****  *     Returns :
 258:/mnt/hgfs/boot/booter/source/ddma.c ****  *      TRUE		On Success
 259:/mnt/hgfs/boot/booter/source/ddma.c ****  *		FALSE		On Failure
 260:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 261:/mnt/hgfs/boot/booter/source/ddma.c ****  */
 262:/mnt/hgfs/boot/booter/source/ddma.c **** int			ddma_free_channel( void *channel )
 263:/mnt/hgfs/boot/booter/source/ddma.c **** {
 443              		.loc 1 263 0
 444              		.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
 445              		.mask	0x80010000,-4
 446              		.fmask	0x00000000,0
 447              		.set	noreorder
 448              		.set	nomacro
 449              		
 450 0310 E8FFBD27 		addiu	$sp,$sp,-24
 451              	$LCFI11:
 452 0314 1400BFAF 		sw	$31,20($sp)
 453              	$LCFI12:
 454 0318 1000B0AF 		sw	$16,16($sp)
 455              	$LCFI13:
 264:/mnt/hgfs/boot/booter/source/ddma.c **** 	int i;
 265:/mnt/hgfs/boot/booter/source/ddma.c **** 	CHANNEL 		*chan = (CHANNEL*)channel;
 266:/mnt/hgfs/boot/booter/source/ddma.c **** 
 267:/mnt/hgfs/boot/booter/source/ddma.c **** 	/* Disable interrupts for this channel */
 268:/mnt/hgfs/boot/booter/source/ddma.c **** 	i= (1<<((uint32) ((~0xA0000000 & (uint32)chan->ptr)-DDMA_PHYS_ADDR)/sizeof(DDMA_CHANNEL))); 
 456              		.loc 1 268 0
 457 031c 0000858C 		lw	$5,0($4)
 269:/mnt/hgfs/boot/booter/source/ddma.c **** 	ddma->inten = ddma->inten & ~i;
 458              		.loc 1 269 0
 459 0320 0000033C 		lui	$3,%hi(ddma)
 460 0324 0000668C 		lw	$6,%lo(ddma)($3)
 461              		.loc 1 268 0
 462 0328 FF5F023C 		li	$2,1610547200			# 0x5fff0000
 463 032c FFFF4234 		ori	$2,$2,0xffff
 464 0330 2428A200 		and	$5,$5,$2
 465              		.loc 1 269 0
 466 0334 0C10C38C 		lw	$3,4108($6)
 467              		.loc 1 268 0
 468 0338 022A0500 		srl	$5,$5,8
GAS LISTING /tmp/ccEQxguf.s 			page 14


 469 033c 01000224 		li	$2,1			# 0x1
 470 0340 0410A200 		sll	$2,$2,$5
 471              		.loc 1 269 0
 472 0344 27100200 		nor	$2,$0,$2
 473 0348 24186200 		and	$3,$3,$2
 474              		.loc 1 263 0
 475 034c 21808000 		move	$16,$4
 476              		.loc 1 269 0
 477 0350 0C10C3AC 		sw	$3,4108($6)
 270:/mnt/hgfs/boot/booter/source/ddma.c **** 
 271:/mnt/hgfs/boot/booter/source/ddma.c **** 	ddma_channel_stop( (CHANNEL*)channel );
 478              		.loc 1 271 0
 479 0354 0000000C 		jal	ddma_channel_stop
 480 0358 00000000 		nop
 481              	
 272:/mnt/hgfs/boot/booter/source/ddma.c **** 	
 273:/mnt/hgfs/boot/booter/source/ddma.c **** 	memset(channel,0,sizeof(CHANNEL));
 482              		.loc 1 273 0
 483 035c 21200002 		move	$4,$16
 484 0360 21280000 		move	$5,$0
 485 0364 0000000C 		jal	memset
 486 0368 2C000624 		li	$6,44			# 0x2c
 487              	
 274:/mnt/hgfs/boot/booter/source/ddma.c **** 	return TRUE;
 275:/mnt/hgfs/boot/booter/source/ddma.c **** }
 488              		.loc 1 275 0
 489 036c 1400BF8F 		lw	$31,20($sp)
 490 0370 1000B08F 		lw	$16,16($sp)
 491 0374 01000224 		li	$2,1			# 0x1
 492 0378 0800E003 		j	$31
 493 037c 1800BD27 		addiu	$sp,$sp,24
 494              	
 495              		.set	macro
 496              		.set	reorder
 497              	$LFE8:
 498              		.end	ddma_free_channel
 499              		.align	2
 500              		.globl	ddma_init_descriptors
 501              		.ent	ddma_init_descriptors
 502              		.type	ddma_init_descriptors, @function
 503              	ddma_init_descriptors:
 504              	$LFB9:
 276:/mnt/hgfs/boot/booter/source/ddma.c **** 
 277:/mnt/hgfs/boot/booter/source/ddma.c **** /*
 278:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Function   :   ddma_init_descriptors
 279:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 280:/mnt/hgfs/boot/booter/source/ddma.c ****  *      This function will take a descriptor list with the first entry modfied by
 281:/mnt/hgfs/boot/booter/source/ddma.c ****  *      the user and duplicate it throughout the list.
 282:/mnt/hgfs/boot/booter/source/ddma.c ****  *		It is up to the user to assign new src,dst and cnt values when the descriptors
 283:/mnt/hgfs/boot/booter/source/ddma.c ****  *		are to be used.
 284:/mnt/hgfs/boot/booter/source/ddma.c ****  * 
 285:/mnt/hgfs/boot/booter/source/ddma.c ****  *		Mainly used for duplicating SIDs, DIDs, SAM etc. it also sets up the
 286:/mnt/hgfs/boot/booter/source/ddma.c ****  *		nxt_ptrs for ring effect.
 287:/mnt/hgfs/boot/booter/source/ddma.c ****  *
 288:/mnt/hgfs/boot/booter/source/ddma.c ****  *   Parameters :
 289:/mnt/hgfs/boot/booter/source/ddma.c ****  *      list		Pointer to the list of ddma descriptors
 290:/mnt/hgfs/boot/booter/source/ddma.c ****  *		count		number of descriptors in the list
GAS LISTING /tmp/ccEQxguf.s 			page 15