ddma2.lst

au1200下的boot代码

GAS LISTING /tmp/ccSUImwK.s 			page 1


   1              		.section .mdebug.abi32
   2              		.previous
   3              		.section	.debug_abbrev,"",@progbits
   4              	$Ldebug_abbrev0:
   5              		.section	.debug_info,"",@progbits
   6              	$Ldebug_info0:
   7              		.section	.debug_line,"",@progbits
   8              	$Ldebug_line0:
   9 0000 C2010000 		.text
   9      0200AF00 
   9      00000101 
   9      FB0E0A00 
   9      01010101 
  10              	$Ltext0:
  11              		.globl	flags
  12              		.section	.bss
  13              		.align	2
  14              		.type	flags, @object
  15              		.size	flags, 4
  16              	flags:
  17 0000 00000000 		.space	4
  18              		.globl	ddma
  19              		.align	2
  20              		.type	ddma, @object
  21              		.size	ddma, 4
  22              	ddma:
  23 0004 00000000 		.space	4
  24 0008 00000000 		.text
  24      00000000 
  25              		.align	2
  26              		.globl	ddma2_get_next_channel
  27              		.ent	ddma2_get_next_channel
  28              		.type	ddma2_get_next_channel, @function
  29              	ddma2_get_next_channel:
  30              	$LFB5:
  31              		.file 1 "/mnt/hgfs/boot/booter/source/ddma2.c"
   1:/mnt/hgfs/boot/booter/source/ddma2.c **** 
   2:/mnt/hgfs/boot/booter/source/ddma2.c **** #include "example.h"
   3:/mnt/hgfs/boot/booter/source/ddma2.c **** #include "ddma2.h"
   4:/mnt/hgfs/boot/booter/source/ddma2.c **** 
   5:/mnt/hgfs/boot/booter/source/ddma2.c **** 
   6:/mnt/hgfs/boot/booter/source/ddma2.c **** static void inline au1550_ddma_doorbell( DDMA_CHANNEL * chan )	{ chan->dbell = 0xFFFFFFFF; }
   7:/mnt/hgfs/boot/booter/source/ddma2.c **** static void inline au1550_ddma_halt( DDMA_CHANNEL * chan )		{ chan->cfg &= ~DDMA_CHANCFG_EN; }
   8:/mnt/hgfs/boot/booter/source/ddma2.c **** static void inline au1550_ddma_start( DDMA_CHANNEL * chan ) 	{ chan->cfg |= DDMA_CHANCFG_EN; }
   9:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  10:/mnt/hgfs/boot/booter/source/ddma2.c **** typedef struct 
  11:/mnt/hgfs/boot/booter/source/ddma2.c **** {
  12:/mnt/hgfs/boot/booter/source/ddma2.c **** 	DDMA_CHANNEL 	*ptr;				// Pointer to physical channel
  13:/mnt/hgfs/boot/booter/source/ddma2.c **** 	int				avail;				// Available?
  14:/mnt/hgfs/boot/booter/source/ddma2.c **** 	int				descriptor_lock;	// Lock for our descriptor resource
  15:/mnt/hgfs/boot/booter/source/ddma2.c **** 	DDMA_DESCRIPTOR *d_head,*d_tail;	// Descriptor head/tail ptrs
  16:/mnt/hgfs/boot/booter/source/ddma2.c **** 	unsigned long	cache_bits;			// Used to store the descriptor's cache bits
  17:/mnt/hgfs/boot/booter/source/ddma2.c **** 	DDMA_CALLBACK	callback;			// User's Callback routine
  18:/mnt/hgfs/boot/booter/source/ddma2.c **** 	unsigned int	callback_arg;		// User's callback argument
  19:/mnt/hgfs/boot/booter/source/ddma2.c **** 	unsigned int	status;				// Status pointer
  20:/mnt/hgfs/boot/booter/source/ddma2.c **** 	unsigned long	int_cnt;			// Interrupt count for stats only
  21:/mnt/hgfs/boot/booter/source/ddma2.c **** 	unsigned long	rx_cnt,tx_cnt;		// More stats
GAS LISTING /tmp/ccSUImwK.s 			page 2


  22:/mnt/hgfs/boot/booter/source/ddma2.c **** } CHANNEL;
  23:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  24:/mnt/hgfs/boot/booter/source/ddma2.c **** typedef struct 
  25:/mnt/hgfs/boot/booter/source/ddma2.c **** {
  26:/mnt/hgfs/boot/booter/source/ddma2.c **** 	void* src;
  27:/mnt/hgfs/boot/booter/source/ddma2.c **** 	void* dst;
  28:/mnt/hgfs/boot/booter/source/ddma2.c **** 	int len;
  29:/mnt/hgfs/boot/booter/source/ddma2.c **** } DDMA_XFER;
  30:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  31:/mnt/hgfs/boot/booter/source/ddma2.c **** /**********************************************************************
  32:/mnt/hgfs/boot/booter/source/ddma2.c ****                     GLOBALS
  33:/mnt/hgfs/boot/booter/source/ddma2.c **** **********************************************************************/
  34:/mnt/hgfs/boot/booter/source/ddma2.c **** AU1X00_DDMA				   *ddma = NULL;
  35:/mnt/hgfs/boot/booter/source/ddma2.c **** CHANNEL						channels[DDMA_NUM_CHANNELS];
  36:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  37:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  38:/mnt/hgfs/boot/booter/source/ddma2.c **** /**********************************************************************
  39:/mnt/hgfs/boot/booter/source/ddma2.c ****                     Function Prototypes
  40:/mnt/hgfs/boot/booter/source/ddma2.c **** **********************************************************************/
  41:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  42:/mnt/hgfs/boot/booter/source/ddma2.c **** /*
  43:/mnt/hgfs/boot/booter/source/ddma2.c ****  *   Function   :   ddma_get_channel
  44:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
  45:/mnt/hgfs/boot/booter/source/ddma2.c ****  *      This function allocates a channel for a specific device, sets the default
  46:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		transfer size, allocates 'n' descriptors and sets the channels descriptor
  47:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		pointer to the beginning of the ring.
  48:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
  49:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		Channels are allocated High Number to Low Numeber. I.e. 15,14,13 etc. This
  50:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		assumes lower channel numbers have higher priority when priority is enabled.
  51:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
  52:/mnt/hgfs/boot/booter/source/ddma2.c ****  *   Parameters :
  53:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		cnt: Number of descriptors to allocate
  54:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
  55:/mnt/hgfs/boot/booter/source/ddma2.c ****  *     Returns :
  56:/mnt/hgfs/boot/booter/source/ddma2.c ****  *      Non-NULL	Pointer to the newly allocated channel
  57:/mnt/hgfs/boot/booter/source/ddma2.c ****  *		NULL		Failure to allocate channel
  58:/mnt/hgfs/boot/booter/source/ddma2.c ****  *
  59:/mnt/hgfs/boot/booter/source/ddma2.c ****  */
  60:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  61:/mnt/hgfs/boot/booter/source/ddma2.c **** CHANNEL_ID ddma2_get_next_channel(void)
  62:/mnt/hgfs/boot/booter/source/ddma2.c **** {
  32              		.loc 1 62 0
  33              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
  34              		.mask	0x00000000,0
  35              		.fmask	0x00000000,0
  36              		.set	noreorder
  37              		.set	nomacro
  38              		
  39 0000 0000023C 		lui	$2,%hi(channels)
  40 0004 00004224 		addiu	$2,$2,%lo(channels)
  41 0008 D4024324 		addiu	$3,$2,724
  63:/mnt/hgfs/boot/booter/source/ddma2.c **** 	int i;
  64:/mnt/hgfs/boot/booter/source/ddma2.c **** 	for(i = DDMA_NUM_CHANNELS - 1; i >= 0; --i)
  42              		.loc 1 64 0
  43 000c 0F000424 		li	$4,15			# 0xf
  44 0010 01000524 		li	$5,1			# 0x1
  45              	$L6:
GAS LISTING /tmp/ccSUImwK.s 			page 3


  65:/mnt/hgfs/boot/booter/source/ddma2.c **** 	{
  66:/mnt/hgfs/boot/booter/source/ddma2.c **** 		if (TRUE == channels[i].avail) 
  46              		.loc 1 66 0
  47 0014 0000628C 		lw	$2,0($3)
  48 0018 06004510 		beq	$2,$5,$L10
  49 001c D0FF6324 		addiu	$3,$3,-48
  50              	
  51              		.loc 1 64 0
  52 0020 FFFF8424 		addiu	$4,$4,-1
  53 0024 FBFF8104 		bgez	$4,$L6
  54 0028 FFFF0224 		li	$2,-1			# 0xffffffffffffffff
  55              	
  67:/mnt/hgfs/boot/booter/source/ddma2.c **** 			return i;
  68:/mnt/hgfs/boot/booter/source/ddma2.c **** 	}
  69:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  70:/mnt/hgfs/boot/booter/source/ddma2.c **** 	return CHANNEL_INVALID;
  71:/mnt/hgfs/boot/booter/source/ddma2.c **** }
  56              		.loc 1 71 0
  57 002c 0800E003 		j	$31
  58 0030 00000000 		nop
  59              	
  60              	$L10:
  61              		.loc 1 67 0
  62 0034 0800E003 		j	$31
  63 0038 21108000 		move	$2,$4
  64              	
  65              		.set	macro
  66              		.set	reorder
  67              	$LFE5:
  68              		.end	ddma2_get_next_channel
  69              		.align	2
  70              		.globl	ddma2_get_descriptor_pointer
  71              		.ent	ddma2_get_descriptor_pointer
  72              		.type	ddma2_get_descriptor_pointer, @function
  73              	ddma2_get_descriptor_pointer:
  74              	$LFB6:
  72:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  73:/mnt/hgfs/boot/booter/source/ddma2.c **** uint32 ddma2_get_descriptor_pointer(CHANNEL_ID id)
  74:/mnt/hgfs/boot/booter/source/ddma2.c **** {
  75              		.loc 1 74 0
  76              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
  77              		.mask	0x00000000,0
  78              		.fmask	0x00000000,0
  79              		.set	noreorder
  80              		.set	nomacro
  81              		
  75:/mnt/hgfs/boot/booter/source/ddma2.c **** 	return channels[id].ptr->des_ptr;
  82              		.loc 1 75 0
  83 003c 40100400 		sll	$2,$4,1
  84 0040 21104400 		addu	$2,$2,$4
  85 0044 0000033C 		lui	$3,%hi(channels)
  86 0048 00006324 		addiu	$3,$3,%lo(channels)
  87 004c 00110200 		sll	$2,$2,4
  88 0050 21104300 		addu	$2,$2,$3
  89 0054 0000448C 		lw	$4,0($2)
  90 0058 0400828C 		lw	$2,4($4)
  76:/mnt/hgfs/boot/booter/source/ddma2.c **** }
GAS LISTING /tmp/ccSUImwK.s 			page 4


  91              		.loc 1 76 0
  92 005c 0800E003 		j	$31
  93 0060 00000000 		nop
  94              	
  95              		.set	macro
  96              		.set	reorder
  97              	$LFE6:
  98              		.end	ddma2_get_descriptor_pointer
  99              		.align	2
 100              		.globl	ddma2_enable_channel
 101              		.ent	ddma2_enable_channel
 102              		.type	ddma2_enable_channel, @function
 103              	ddma2_enable_channel:
 104              	$LFB7:
  77:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  78:/mnt/hgfs/boot/booter/source/ddma2.c **** void ddma2_enable_channel(CHANNEL_ID id)
  79:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 105              		.loc 1 79 0
 106              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
 107              		.mask	0x00000000,0
 108              		.fmask	0x00000000,0
 109              		.set	noreorder
 110              		.set	nomacro
 111              		
  80:/mnt/hgfs/boot/booter/source/ddma2.c **** 	ddma->inten |= (1 << id);	//Enable DDMA interrupt for this channel
 112              		.loc 1 80 0
 113 0064 0000023C 		lui	$2,%hi(ddma)
 114 0068 0000478C 		lw	$7,%lo(ddma)($2)
  81:/mnt/hgfs/boot/booter/source/ddma2.c **** 	channels[id].ptr->cfg |= DDMA_CHANCFG_EN;
 115              		.loc 1 81 0
 116 006c 40180400 		sll	$3,$4,1
 117 0070 21186400 		addu	$3,$3,$4
 118 0074 0000023C 		lui	$2,%hi(channels)
 119              		.loc 1 80 0
 120 0078 0C10E58C 		lw	$5,4108($7)
 121              		.loc 1 81 0
 122 007c 00004224 		addiu	$2,$2,%lo(channels)
 123 0080 00190300 		sll	$3,$3,4
 124 0084 21186200 		addu	$3,$3,$2
 125              		.loc 1 80 0
 126 0088 01000224 		li	$2,1			# 0x1
 127              		.loc 1 81 0
 128 008c 0000668C 		lw	$6,0($3)
 129              		.loc 1 80 0
 130 0090 04108200 		sll	$2,$2,$4
 131 0094 2528A200 		or	$5,$5,$2
 132 0098 0C10E5AC 		sw	$5,4108($7)
 133              		.loc 1 81 0
 134 009c 0000C28C 		lw	$2,0($6)
 135              	$LBB2:
 136              	$LBB3:
 137              		.loc 1 6 0
 138 00a0 FFFF0324 		li	$3,-1			# 0xffffffffffffffff
 139              	$LBE3:
 140              	$LBE2:
 141              		.loc 1 81 0
 142 00a4 01004234 		ori	$2,$2,0x1
GAS LISTING /tmp/ccSUImwK.s 			page 5


 143 00a8 0000C2AC 		sw	$2,0($6)
 144              	$LBB4:
 145              	$LBB5:
 146              		.loc 1 6 0
 147 00ac 0C00C3AC 		sw	$3,12($6)
 148              	$LBE5:
 149              	$LBE4:
 150 00b0 0800E003 		j	$31
 151 00b4 00000000 		nop
 152              	
 153              		.set	macro
 154              		.set	reorder
 155              	$LFE7:
 156              		.end	ddma2_enable_channel
 157              		.align	2
 158              		.globl	ddma2_disable_channel
 159              		.ent	ddma2_disable_channel
 160              		.type	ddma2_disable_channel, @function
 161              	ddma2_disable_channel:
 162              	$LFB8:
  82:/mnt/hgfs/boot/booter/source/ddma2.c **** 	au1550_ddma_doorbell( channels[id].ptr );
  83:/mnt/hgfs/boot/booter/source/ddma2.c **** }
  84:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  85:/mnt/hgfs/boot/booter/source/ddma2.c **** void ddma2_disable_channel(CHANNEL_ID id)
  86:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 163              		.loc 1 86 0
 164              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
 165              		.mask	0x00000000,0
 166              		.fmask	0x00000000,0
 167              		.set	noreorder
 168              		.set	nomacro
 169              		
  87:/mnt/hgfs/boot/booter/source/ddma2.c **** //	ddma->inten &= ~(1 << id);	//Disable DDMA interrupt for this channel
  88:/mnt/hgfs/boot/booter/source/ddma2.c **** 	channels[id].ptr->cfg &= ~DDMA_CHANCFG_EN;
 170              		.loc 1 88 0
 171 00b8 40100400 		sll	$2,$4,1
 172 00bc 21104400 		addu	$2,$2,$4
 173 00c0 0000033C 		lui	$3,%hi(channels)
 174 00c4 00006324 		addiu	$3,$3,%lo(channels)
 175 00c8 00110200 		sll	$2,$2,4
 176 00cc 21104300 		addu	$2,$2,$3
 177 00d0 0000448C 		lw	$4,0($2)
 178 00d4 FEFF0224 		li	$2,-2			# 0xfffffffffffffffe
 179 00d8 0000838C 		lw	$3,0($4)
 180 00dc 24186200 		and	$3,$3,$2
 181 00e0 000083AC 		sw	$3,0($4)
 182 00e4 0800E003 		j	$31
 183 00e8 00000000 		nop
 184              	
 185              		.set	macro
 186              		.set	reorder
 187              	$LFE8:
 188              		.end	ddma2_disable_channel
 189              		.align	2
 190              		.globl	ddma2_request_channel
 191              		.ent	ddma2_request_channel
 192              		.type	ddma2_request_channel, @function
GAS LISTING /tmp/ccSUImwK.s 			page 6


 193              	ddma2_request_channel:
 194              	$LFB9:
  89:/mnt/hgfs/boot/booter/source/ddma2.c **** //	channels[id].ptr->des_ptr = 0;
  90:/mnt/hgfs/boot/booter/source/ddma2.c **** }
  91:/mnt/hgfs/boot/booter/source/ddma2.c **** 
  92:/mnt/hgfs/boot/booter/source/ddma2.c **** CHANNEL_ID ddma2_request_channel(DDMA_CALLBACK callback, unsigned int callback_arg)