From f22a2d4e1a1b66f982d4eaef1189a6f72a3bf8d1 Mon Sep 17 00:00:00 2001 From: Ryan Dwyer Date: Wed, 17 Mar 2021 18:25:37 +1000 Subject: [PATCH] Decompile osEepromWrite --- src/lib/ultra/io/conteepwrite.c | 169 ++++++++++++-------------------- 1 file changed, 65 insertions(+), 104 deletions(-) diff --git a/src/lib/ultra/io/conteepwrite.c b/src/lib/ultra/io/conteepwrite.c index 056c7d638..688a8c03f 100644 --- a/src/lib/ultra/io/conteepwrite.c +++ b/src/lib/ultra/io/conteepwrite.c @@ -2,110 +2,71 @@ #include "bss.h" #include "data.h" -GLOBAL_ASM( -glabel osEepromWrite -/* 4bcc0: 27bdffb8 */ addiu $sp,$sp,-72 -/* 4bcc4: afbf001c */ sw $ra,0x1c($sp) -/* 4bcc8: afb10018 */ sw $s1,0x18($sp) -/* 4bccc: 00808825 */ or $s1,$a0,$zero -/* 4bcd0: afb00014 */ sw $s0,0x14($sp) -/* 4bcd4: afa5004c */ sw $a1,0x4c($sp) -/* 4bcd8: 0c012a18 */ jal __osSiGetAccess -/* 4bcdc: afa60050 */ sw $a2,0x50($sp) -/* 4bce0: 27b0002c */ addiu $s0,$sp,0x2c -/* 4bce4: 02002825 */ or $a1,$s0,$zero -/* 4bce8: 0c012fb9 */ jal __osEepStatus -/* 4bcec: 02202025 */ or $a0,$s1,$zero -/* 4bcf0: 14400015 */ bnez $v0,.L0004bd48 -/* 4bcf4: 00401825 */ or $v1,$v0,$zero -/* 4bcf8: 97ae002c */ lhu $t6,0x2c($sp) -/* 4bcfc: 34018000 */ dli $at,0x8000 -/* 4bd00: 93b8004f */ lbu $t8,0x4f($sp) -/* 4bd04: 31cfc000 */ andi $t7,$t6,0xc000 -/* 4bd08: 11e10005 */ beq $t7,$at,.L0004bd20 -/* 4bd0c: 3401c000 */ dli $at,0xc000 -/* 4bd10: 11e10008 */ beq $t7,$at,.L0004bd34 -/* 4bd14: 93b9004f */ lbu $t9,0x4f($sp) -/* 4bd18: 1000000b */ b .L0004bd48 -/* 4bd1c: 24030008 */ addiu $v1,$zero,0x8 -.L0004bd20: -/* 4bd20: 2b010040 */ slti $at,$t8,0x40 -/* 4bd24: 14200008 */ bnez $at,.L0004bd48 -/* 4bd28: 00000000 */ nop -/* 4bd2c: 10000006 */ b .L0004bd48 -/* 4bd30: 2403ffff */ addiu $v1,$zero,-1 -.L0004bd34: -/* 4bd34: 2b210100 */ slti $at,$t9,0x100 -/* 4bd38: 14200003 */ bnez $at,.L0004bd48 -/* 4bd3c: 00000000 */ nop -/* 4bd40: 10000001 */ b .L0004bd48 -/* 4bd44: 2403ffff */ addiu $v1,$zero,-1 -.L0004bd48: -/* 4bd48: 10600005 */ beqz $v1,.L0004bd60 -/* 4bd4c: 93a8002e */ lbu $t0,0x2e($sp) -/* 4bd50: 0c012a29 */ jal __osSiRelAccess -/* 4bd54: afa30044 */ sw $v1,0x44($sp) -/* 4bd58: 10000032 */ b .L0004be24 -/* 4bd5c: 8fa20044 */ lw $v0,0x44($sp) -.L0004bd60: -/* 4bd60: 31090080 */ andi $t1,$t0,0x80 -/* 4bd64: 11200007 */ beqz $t1,.L0004bd84 -/* 4bd68: 02202025 */ or $a0,$s1,$zero -.L0004bd6c: -/* 4bd6c: 0c012fb9 */ jal __osEepStatus -/* 4bd70: 02002825 */ or $a1,$s0,$zero -/* 4bd74: 93aa002e */ lbu $t2,0x2e($sp) -/* 4bd78: 314b0080 */ andi $t3,$t2,0x80 -/* 4bd7c: 5560fffb */ bnezl $t3,.L0004bd6c -/* 4bd80: 02202025 */ or $a0,$s1,$zero -.L0004bd84: -/* 4bd84: 93a4004f */ lbu $a0,0x4f($sp) -/* 4bd88: 0c012f8e */ jal __osPackEepWriteData -/* 4bd8c: 8fa50050 */ lw $a1,0x50($sp) -/* 4bd90: 3c05800a */ lui $a1,%hi(__osEepPifRam) -/* 4bd94: 24a5ca80 */ addiu $a1,$a1,%lo(__osEepPifRam) -/* 4bd98: 0c012a34 */ jal __osSiRawStartDma -/* 4bd9c: 24040001 */ addiu $a0,$zero,0x1 -/* 4bda0: 02202025 */ or $a0,$s1,$zero -/* 4bda4: 00002825 */ or $a1,$zero,$zero -/* 4bda8: 0c0121bc */ jal osRecvMesg -/* 4bdac: 24060001 */ addiu $a2,$zero,0x1 -/* 4bdb0: 3c05800a */ lui $a1,%hi(__osEepPifRam) -/* 4bdb4: 24a5ca80 */ addiu $a1,$a1,%lo(__osEepPifRam) -/* 4bdb8: 0c012a34 */ jal __osSiRawStartDma -/* 4bdbc: 00002025 */ or $a0,$zero,$zero -/* 4bdc0: 240c0005 */ addiu $t4,$zero,0x5 -/* 4bdc4: 3c01800a */ lui $at,%hi(__osContLastCmd) -/* 4bdc8: a02cc820 */ sb $t4,%lo(__osContLastCmd)($at) -/* 4bdcc: 02202025 */ or $a0,$s1,$zero -/* 4bdd0: 00002825 */ or $a1,$zero,$zero -/* 4bdd4: 0c0121bc */ jal osRecvMesg -/* 4bdd8: 24060001 */ addiu $a2,$zero,0x1 -/* 4bddc: 3c07800a */ lui $a3,%hi(__osEepPifRam+0x4) -/* 4bde0: 24e7ca84 */ addiu $a3,$a3,%lo(__osEepPifRam+0x4) -/* 4bde4: 88e10000 */ lwl $at,0x0($a3) -/* 4bde8: 98e10003 */ lwr $at,0x3($a3) -/* 4bdec: 27ad0030 */ addiu $t5,$sp,0x30 -/* 4bdf0: ada10000 */ sw $at,0x0($t5) -/* 4bdf4: 88f80004 */ lwl $t8,0x4($a3) -/* 4bdf8: 98f80007 */ lwr $t8,0x7($a3) -/* 4bdfc: adb80004 */ sw $t8,0x4($t5) -/* 4be00: 88e10008 */ lwl $at,0x8($a3) -/* 4be04: 98e1000b */ lwr $at,0xb($a3) -/* 4be08: ada10008 */ sw $at,0x8($t5) -/* 4be0c: 93a30031 */ lbu $v1,0x31($sp) -/* 4be10: 307900c0 */ andi $t9,$v1,0xc0 -/* 4be14: 00194103 */ sra $t0,$t9,0x4 -/* 4be18: 0c012a29 */ jal __osSiRelAccess -/* 4be1c: afa80044 */ sw $t0,0x44($sp) -/* 4be20: 8fa20044 */ lw $v0,0x44($sp) -.L0004be24: -/* 4be24: 8fbf001c */ lw $ra,0x1c($sp) -/* 4be28: 8fb00014 */ lw $s0,0x14($sp) -/* 4be2c: 8fb10018 */ lw $s1,0x18($sp) -/* 4be30: 03e00008 */ jr $ra -/* 4be34: 27bd0048 */ addiu $sp,$sp,0x48 -); +void __osPackEepWriteData(u8 address, u8 *buffer); + +s32 osEepromWrite(OSMesgQueue *mq, u8 address, u8 *buffer) +{ + s32 ret; + u16 type; + u8 *ptr; + __OSContEepromFormat eepromformat; + OSContStatus sdata; + + ret = 0; + ptr = (u8 *)&__osEepPifRam.ramarray; + __osSiGetAccess(); + ret = __osEepStatus(mq, &sdata); + + type = sdata.type & (CONT_EEPROM | CONT_EEP16K); + + if (ret == 0) { + switch (type) { + case CONT_EEPROM: + // @bug: Should be > EEPROM_MAXBLOCKS + if (address >= EEPROM_MAXBLOCKS) { + ret = -1; + } + break; + case CONT_EEPROM | CONT_EEP16K: + // @bug: Should be > EEP16K_MAXBLOCKS + if (address >= EEP16K_MAXBLOCKS) { + ret = -1; + } + break; + default: + if (1); + ret = CONT_NO_RESPONSE_ERROR; + break; + } + } + + if (ret != 0) { + __osSiRelAccess(); + return ret; + } + + while (sdata.status & CONT_EEPROM_BUSY) { + __osEepStatus(mq, &sdata); + } + + __osPackEepWriteData(address, buffer); + + ret = __osSiRawStartDma(OS_WRITE, &__osEepPifRam); + osRecvMesg(mq, NULL, OS_MESG_BLOCK); + + ret = __osSiRawStartDma(OS_READ, &__osEepPifRam); + __osContLastCmd = CONT_CMD_WRITE_EEPROM; + osRecvMesg(mq, NULL, OS_MESG_BLOCK); + + ptr += 4; + + eepromformat = *(__OSContEepromFormat *)ptr; + + ret = CHNL_ERR(eepromformat); + + __osSiRelAccess(); + return ret; +} void __osPackEepWriteData(u8 address, u8 *buffer) {