Decompile osEepromRead
This commit is contained in:
Ryan Dwyer
parent
575028ca70
commit
2696836a28
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@ -71,7 +71,7 @@ extern u8 __osMaxControllers;
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extern u32 __osEepromTimer;
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extern OSMesgQueue __osEepromTimerQ;
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extern OSMesg __osEepromTimerMsg;
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extern u32 __osEepPifRam;
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extern OSPifRam __osEepPifRam;
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extern u32 var8009ca84;
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extern void *var8009cac0;
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extern void *var8009cac4;
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@ -1,4 +1,5 @@
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#include <libultra_internal.h>
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#include "bss.h"
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#include "data.h"
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OSPifRam __osEepPifRam;
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@ -10,132 +11,81 @@ u32 var8009d010pf[4];
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void *var8009cac0;
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void *var8009cac4;
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GLOBAL_ASM(
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glabel osEepromRead
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/* 501a0: 27bdffb0 */ addiu $sp,$sp,-80
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/* 501a4: afb1001c */ sw $s1,0x1c($sp)
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/* 501a8: afbf0024 */ sw $ra,0x24($sp)
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/* 501ac: afb20020 */ sw $s2,0x20($sp)
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/* 501b0: afb00018 */ sw $s0,0x18($sp)
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/* 501b4: 3c11800a */ lui $s1,%hi(__osEepPifRam)
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/* 501b8: 00c08025 */ or $s0,$a2,$zero
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/* 501bc: 00809025 */ or $s2,$a0,$zero
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/* 501c0: afa50054 */ sw $a1,0x54($sp)
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/* 501c4: 0c012a18 */ jal __osSiGetAccess
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/* 501c8: 2631ca80 */ addiu $s1,$s1,%lo(__osEepPifRam)
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/* 501cc: 02402025 */ or $a0,$s2,$zero
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/* 501d0: 0c012fb9 */ jal __osEepStatus
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/* 501d4: 27a5003c */ addiu $a1,$sp,0x3c
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/* 501d8: 14400015 */ bnez $v0,.L00050230
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/* 501dc: 00402025 */ or $a0,$v0,$zero
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/* 501e0: 97ae003c */ lhu $t6,0x3c($sp)
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/* 501e4: 34018000 */ dli $at,0x8000
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/* 501e8: 93b80057 */ lbu $t8,0x57($sp)
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/* 501ec: 31cfc000 */ andi $t7,$t6,0xc000
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/* 501f0: 11e10005 */ beq $t7,$at,.L00050208
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/* 501f4: 3401c000 */ dli $at,0xc000
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/* 501f8: 11e10008 */ beq $t7,$at,.L0005021c
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/* 501fc: 93b90057 */ lbu $t9,0x57($sp)
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/* 50200: 1000000b */ b .L00050230
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/* 50204: 24040008 */ addiu $a0,$zero,0x8
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.L00050208:
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/* 50208: 2b010040 */ slti $at,$t8,0x40
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/* 5020c: 14200008 */ bnez $at,.L00050230
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/* 50210: 00000000 */ nop
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/* 50214: 10000006 */ b .L00050230
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/* 50218: 2404ffff */ addiu $a0,$zero,-1
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.L0005021c:
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/* 5021c: 2b210100 */ slti $at,$t9,0x100
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/* 50220: 14200003 */ bnez $at,.L00050230
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/* 50224: 00000000 */ nop
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/* 50228: 10000001 */ b .L00050230
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/* 5022c: 2404ffff */ addiu $a0,$zero,-1
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.L00050230:
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/* 50230: 10800005 */ beqz $a0,.L00050248
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/* 50234: 93a8003e */ lbu $t0,0x3e($sp)
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/* 50238: 0c012a29 */ jal __osSiRelAccess
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/* 5023c: afa4004c */ sw $a0,0x4c($sp)
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/* 50240: 10000042 */ b .L0005034c
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/* 50244: 8fa2004c */ lw $v0,0x4c($sp)
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.L00050248:
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/* 50248: 31090080 */ andi $t1,$t0,0x80
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/* 5024c: 11200007 */ beqz $t1,.L0005026c
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/* 50250: 02402025 */ or $a0,$s2,$zero
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.L00050254:
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/* 50254: 0c012fb9 */ jal __osEepStatus
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/* 50258: 27a5003c */ addiu $a1,$sp,0x3c
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/* 5025c: 93aa003e */ lbu $t2,0x3e($sp)
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/* 50260: 314b0080 */ andi $t3,$t2,0x80
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/* 50264: 5560fffb */ bnezl $t3,.L00050254
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/* 50268: 02402025 */ or $a0,$s2,$zero
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.L0005026c:
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/* 5026c: 0c0140d9 */ jal __osPackEepReadData
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/* 50270: 93a40057 */ lbu $a0,0x57($sp)
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/* 50274: 3c05800a */ lui $a1,%hi(__osEepPifRam)
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/* 50278: 24a5ca80 */ addiu $a1,$a1,%lo(__osEepPifRam)
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/* 5027c: 0c012a34 */ jal __osSiRawStartDma
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/* 50280: 24040001 */ addiu $a0,$zero,0x1
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/* 50284: 02402025 */ or $a0,$s2,$zero
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/* 50288: 00002825 */ or $a1,$zero,$zero
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/* 5028c: 0c0121bc */ jal osRecvMesg
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/* 50290: 24060001 */ addiu $a2,$zero,0x1
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/* 50294: 3c05800a */ lui $a1,%hi(__osEepPifRam)
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/* 50298: 24a5ca80 */ addiu $a1,$a1,%lo(__osEepPifRam)
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/* 5029c: 0c012a34 */ jal __osSiRawStartDma
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/* 502a0: 00002025 */ or $a0,$zero,$zero
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/* 502a4: 240c0004 */ addiu $t4,$zero,0x4
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/* 502a8: 3c01800a */ lui $at,%hi(__osContLastCmd)
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/* 502ac: a02cc820 */ sb $t4,%lo(__osContLastCmd)($at)
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/* 502b0: 02402025 */ or $a0,$s2,$zero
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/* 502b4: 00002825 */ or $a1,$zero,$zero
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/* 502b8: 0c0121bc */ jal osRecvMesg
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/* 502bc: 24060001 */ addiu $a2,$zero,0x1
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/* 502c0: 00001825 */ or $v1,$zero,$zero
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.L000502c4:
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/* 502c4: 24630001 */ addiu $v1,$v1,0x1
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/* 502c8: 28610004 */ slti $at,$v1,0x4
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/* 502cc: 1420fffd */ bnez $at,.L000502c4
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/* 502d0: 26310001 */ addiu $s1,$s1,0x1
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/* 502d4: 8a210000 */ lwl $at,0x0($s1)
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/* 502d8: 9a210003 */ lwr $at,0x3($s1)
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/* 502dc: 27ad0030 */ addiu $t5,$sp,0x30
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/* 502e0: 27a30038 */ addiu $v1,$sp,0x38
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/* 502e4: ada10000 */ sw $at,0x0($t5)
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/* 502e8: 8a2f0004 */ lwl $t7,0x4($s1)
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/* 502ec: 9a2f0007 */ lwr $t7,0x7($s1)
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/* 502f0: adaf0004 */ sw $t7,0x4($t5)
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/* 502f4: 8a210008 */ lwl $at,0x8($s1)
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/* 502f8: 9a21000b */ lwr $at,0xb($s1)
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/* 502fc: ada10008 */ sw $at,0x8($t5)
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/* 50300: 93a20031 */ lbu $v0,0x31($sp)
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/* 50304: 305800c0 */ andi $t8,$v0,0xc0
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/* 50308: 00182103 */ sra $a0,$t8,0x4
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/* 5030c: 1480000c */ bnez $a0,.L00050340
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/* 50310: 27a20030 */ addiu $v0,$sp,0x30
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.L00050314:
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/* 50314: 90480004 */ lbu $t0,0x4($v0)
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/* 50318: 24420004 */ addiu $v0,$v0,0x4
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/* 5031c: 26100004 */ addiu $s0,$s0,0x4
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/* 50320: a208fffc */ sb $t0,-0x4($s0)
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/* 50324: 90490001 */ lbu $t1,0x1($v0)
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/* 50328: a209fffd */ sb $t1,-0x3($s0)
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/* 5032c: 904a0002 */ lbu $t2,0x2($v0)
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/* 50330: a20afffe */ sb $t2,-0x2($s0)
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/* 50334: 904b0003 */ lbu $t3,0x3($v0)
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/* 50338: 1443fff6 */ bne $v0,$v1,.L00050314
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/* 5033c: a20bffff */ sb $t3,-0x1($s0)
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.L00050340:
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/* 50340: 0c012a29 */ jal __osSiRelAccess
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/* 50344: afa4004c */ sw $a0,0x4c($sp)
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/* 50348: 8fa2004c */ lw $v0,0x4c($sp)
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.L0005034c:
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/* 5034c: 8fbf0024 */ lw $ra,0x24($sp)
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/* 50350: 8fb00018 */ lw $s0,0x18($sp)
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/* 50354: 8fb1001c */ lw $s1,0x1c($sp)
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/* 50358: 8fb20020 */ lw $s2,0x20($sp)
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/* 5035c: 03e00008 */ jr $ra
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/* 50360: 27bd0050 */ addiu $sp,$sp,0x50
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);
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void __osPackEepReadData(u8 address);
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s32 osEepromRead(OSMesgQueue *mq, u8 address, u8 *buffer)
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{
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s32 ret;
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int i;
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u16 type;
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u8 *ptr;
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OSContStatus sdata;
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__OSContEepromFormat eepromformat;
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ret = 0;
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i = 0;
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ptr = (u8 *)&__osEepPifRam.ramarray;
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__osSiGetAccess();
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ret = __osEepStatus(mq, &sdata);
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if (ret == 0) {
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type = sdata.type & (CONT_EEPROM | CONT_EEP16K);
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switch (type) {
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case CONT_EEPROM:
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// @bug: Should be > EEPROM_MAXBLOCKS
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if (address >= EEPROM_MAXBLOCKS) {
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ret = -1;
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}
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break;
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case CONT_EEPROM | CONT_EEP16K:
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// @bug: Should be > EEP16K_MAXBLOCKS
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if (address >= EEP16K_MAXBLOCKS) {
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ret = -1;
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}
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break;
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default:
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if (1);
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ret = CONT_NO_RESPONSE_ERROR;
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break;
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}
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}
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if (ret != 0) {
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__osSiRelAccess();
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return ret;
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}
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while (sdata.status & CONT_EEPROM_BUSY) {
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__osEepStatus(mq, &sdata);
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}
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__osPackEepReadData(address);
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ret = __osSiRawStartDma(OS_WRITE, &__osEepPifRam);
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osRecvMesg(mq, NULL, OS_MESG_BLOCK);
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ret = __osSiRawStartDma(OS_READ, &__osEepPifRam);
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__osContLastCmd = CONT_CMD_READ_EEPROM;
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osRecvMesg(mq, NULL, OS_MESG_BLOCK);
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for (i = 0; i < 4; i++) {
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ptr++;
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}
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eepromformat = *(__OSContEepromFormat *)ptr;
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ret = CHNL_ERR(eepromformat);
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if (ret == 0) {
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for (i = 0; i < ARRLEN(eepromformat.data); i++) {
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*buffer++ = eepromformat.data[i];
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}
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}
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__osSiRelAccess();
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return ret;
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}
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void __osPackEepReadData(u8 address)
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{
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