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pokeemerald/src/agb_flash.c

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Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
#include "gba/gba.h"
#include "gba/flash_internal.h"
static u8 sTimerNum;
static u16 sTimerCount;
static vu16 *sTimerReg;
static u16 sSavedIme;
u8 gFlashTimeoutFlag;
u8 (*PollFlashStatus)(u8 *);
u16 (*WaitForFlashWrite)(u8 phase, u8 *addr, u8 lastData);
u16 (*ProgramFlashSector)(u16 sectorNum, u8 *src);
const struct FlashType *gFlash;
u16 (*ProgramFlashByte)(u16 sectorNum, u32 offset, u8 data);
u16 gFlashNumRemainingBytes;
u16 (*EraseFlashChip)();
u16 (*EraseFlashSector)(u16 sectorNum);
const u16 *gFlashMaxTime;
void SetReadFlash1(u16 *dest);
void SwitchFlashBank(u8 bankNum)
{
FLASH_WRITE(0x5555, 0xAA);
FLASH_WRITE(0x2AAA, 0x55);
FLASH_WRITE(0x5555, 0xB0);
FLASH_WRITE(0x0000, bankNum);
}
#define DELAY() \
do { \
vu16 i; \
for (i = 20000; i != 0; i--) \
; \
} while (0)
u16 ReadFlashId(void)
{
u16 flashId;
u16 readFlash1Buffer[0x20];
u8 (*readFlash1)(u8 *);
SetReadFlash1(readFlash1Buffer);
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
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readFlash1 = (u8 (*)(u8 *))((s32)readFlash1Buffer + 1);
Port agb_flash from pokeruby
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// Enter ID mode.
FLASH_WRITE(0x5555, 0xAA);
FLASH_WRITE(0x2AAA, 0x55);
FLASH_WRITE(0x5555, 0x90);
DELAY();
flashId = readFlash1(FLASH_BASE + 1) << 8;
flashId |= readFlash1(FLASH_BASE);
// Leave ID mode.
FLASH_WRITE(0x5555, 0xAA);
FLASH_WRITE(0x2AAA, 0x55);
FLASH_WRITE(0x5555, 0xF0);
FLASH_WRITE(0x5555, 0xF0);
DELAY();
return flashId;
}
void FlashTimerIntr(void)
{
if (sTimerCount != 0 && --sTimerCount == 0)
gFlashTimeoutFlag = 1;
}
u16 SetFlashTimerIntr(u8 timerNum, void (**intrFunc)(void))
{
if (timerNum >= 4)
return 1;
sTimerNum = timerNum;
match all the functions
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sTimerReg = &REG_TMCNT_L(sTimerNum);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
*intrFunc = FlashTimerIntr;
return 0;
}
void StartFlashTimer(u8 phase)
{
const u16 *maxTime = &gFlashMaxTime[phase * 3];
sSavedIme = REG_IME;
REG_IME = 0;
sTimerReg[1] = 0;
REG_IE |= (INTR_FLAG_TIMER0 << sTimerNum);
gFlashTimeoutFlag = 0;
sTimerCount = *maxTime++;
*sTimerReg++ = *maxTime++;
*sTimerReg-- = *maxTime++;
REG_IF = (INTR_FLAG_TIMER0 << sTimerNum);
REG_IME = 1;
}
void StopFlashTimer(void)
{
REG_IME = 0;
*sTimerReg++ = 0;
*sTimerReg-- = 0;
REG_IE &= ~(INTR_FLAG_TIMER0 << sTimerNum);
REG_IME = sSavedIme;
}
u8 ReadFlash1(u8 *addr)
{
return *addr;
}
void SetReadFlash1(u16 *dest)
{
u16 *src;
u16 i;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
PollFlashStatus = (u8 (*)(u8 *))((s32)dest + 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
src = (u16 *)ReadFlash1;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
src = (u16 *)((s32)src ^ 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
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i = ((s32)SetReadFlash1 - (s32)ReadFlash1) >> 1;
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
while (i != 0)
{
*dest++ = *src++;
i--;
}
}
Update agb_flash.c
2020-07-22 19:25:09 +02:00
// Using volatile here to make sure the flash memory will ONLY be read as bytes, to prevent any compiler optimizations.
void ReadFlash_Core(vu8 *src, u8 *dest, u32 size)
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
{
while (size-- != 0)
{
*dest++ = *src++;
}
}
void ReadFlash(u16 sectorNum, u32 offset, u8 *dest, u32 size)
{
u8 *src;
u16 i;
Make agb_flash stack func buffers volatile Fixes observed crash with modern gcc
2020-09-03 21:23:44 +02:00
vu16 readFlash_Core_Buffer[0x40];
vu16 *funcSrc;
vu16 *funcDest;
Update agb_flash.c
2020-07-22 19:25:09 +02:00
void (*readFlash_Core)(vu8 *, u8 *, u32);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
REG_WAITCNT = (REG_WAITCNT & ~WAITCNT_SRAM_MASK) | WAITCNT_SRAM_8;
if (gFlash->romSize == FLASH_ROM_SIZE_1M)
{
SwitchFlashBank(sectorNum / SECTORS_PER_BANK);
sectorNum %= SECTORS_PER_BANK;
}
Make agb_flash stack func buffers volatile Fixes observed crash with modern gcc
2020-09-03 21:23:44 +02:00
funcSrc = (vu16 *)ReadFlash_Core;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
funcSrc = (vu16 *)((s32)funcSrc ^ 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
funcDest = readFlash_Core_Buffer;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
i = ((s32)ReadFlash - (s32)ReadFlash_Core) >> 1;
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
while (i != 0)
{
*funcDest++ = *funcSrc++;
i--;
}
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
readFlash_Core = (void (*)(vu8 *, u8 *, u32))((s32)readFlash_Core_Buffer + 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
src = FLASH_BASE + (sectorNum << gFlash->sector.shift) + offset;
readFlash_Core(src, dest, size);
}
u32 VerifyFlashSector_Core(u8 *src, u8 *tgt, u32 size)
{
while (size-- != 0)
{
if (*tgt++ != *src++)
return (u32)(tgt - 1);
}
return 0;
}
u32 VerifyFlashSector(u16 sectorNum, u8 *src)
{
u16 i;
Make agb_flash stack func buffers volatile Fixes observed crash with modern gcc
2020-09-03 21:23:44 +02:00
vu16 verifyFlashSector_Core_Buffer[0x80];
vu16 *funcSrc;
vu16 *funcDest;
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
u8 *tgt;
u16 size;
u32 (*verifyFlashSector_Core)(u8 *, u8 *, u32);
REG_WAITCNT = (REG_WAITCNT & ~WAITCNT_SRAM_MASK) | WAITCNT_SRAM_8;
if (gFlash->romSize == FLASH_ROM_SIZE_1M)
{
SwitchFlashBank(sectorNum / SECTORS_PER_BANK);
sectorNum %= SECTORS_PER_BANK;
}
Make agb_flash stack func buffers volatile Fixes observed crash with modern gcc
2020-09-03 21:23:44 +02:00
funcSrc = (vu16 *)VerifyFlashSector_Core;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
funcSrc = (vu16 *)((s32)funcSrc ^ 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
funcDest = verifyFlashSector_Core_Buffer;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
i = ((s32)VerifyFlashSector - (s32)VerifyFlashSector_Core) >> 1;
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
while (i != 0)
{
*funcDest++ = *funcSrc++;
i--;
}
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
verifyFlashSector_Core = (u32 (*)(u8 *, u8 *, u32))((s32)verifyFlashSector_Core_Buffer + 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
tgt = FLASH_BASE + (sectorNum << gFlash->sector.shift);
size = gFlash->sector.size;
return verifyFlashSector_Core(src, tgt, size);
}
u32 VerifyFlashSectorNBytes(u16 sectorNum, u8 *src, u32 n)
{
u16 i;
Make agb_flash stack func buffers volatile Fixes observed crash with modern gcc
2020-09-03 21:23:44 +02:00
vu16 verifyFlashSector_Core_Buffer[0x80];
vu16 *funcSrc;
vu16 *funcDest;
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
u8 *tgt;
u32 (*verifyFlashSector_Core)(u8 *, u8 *, u32);
if (gFlash->romSize == FLASH_ROM_SIZE_1M)
{
SwitchFlashBank(sectorNum / SECTORS_PER_BANK);
sectorNum %= SECTORS_PER_BANK;
}
REG_WAITCNT = (REG_WAITCNT & ~WAITCNT_SRAM_MASK) | WAITCNT_SRAM_8;
Make agb_flash stack func buffers volatile Fixes observed crash with modern gcc
2020-09-03 21:23:44 +02:00
funcSrc = (vu16 *)VerifyFlashSector_Core;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
funcSrc = (vu16 *)((s32)funcSrc ^ 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
funcDest = verifyFlashSector_Core_Buffer;
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
i = ((s32)VerifyFlashSector - (s32)VerifyFlashSector_Core) >> 1;
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
while (i != 0)
{
*funcDest++ = *funcSrc++;
i--;
}
Undo PokeCodec's PRs This commit undoes most of PokeCodec's PRs after the debate in chat. Some harmless or completely superseded PRs have been left alone, as there is not much benefit in attempting to undo them. Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136, #1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179, #1180, #1181, #1182 and #1183.
2020-09-13 09:22:50 +02:00
verifyFlashSector_Core = (u32 (*)(u8 *, u8 *, u32))((s32)verifyFlashSector_Core_Buffer + 1);
Port agb_flash from pokeruby
2016-11-01 20:15:48 +01:00
tgt = FLASH_BASE + (sectorNum << gFlash->sector.shift);
return verifyFlashSector_Core(src, tgt, n);
}
u32 ProgramFlashSectorAndVerify(u16 sectorNum, u8 *src)
{
u8 i;
u32 result;
for (i = 0; i < 3; i++)
{
result = ProgramFlashSector(sectorNum, src);
if (result != 0)
continue;
result = VerifyFlashSector(sectorNum, src);
if (result == 0)
break;
}
return result;
}
u32 ProgramFlashSectorAndVerifyNBytes(u16 sectorNum, u8 *src, u32 n)
{
u8 i;
u32 result;
for (i = 0; i < 3; i++)
{
result = ProgramFlashSector(sectorNum, src);
if (result != 0)
continue;
result = VerifyFlashSectorNBytes(sectorNum, src, n);
if (result == 0)
break;
}
return result;
Give songs meaningful english names
2020-08-21 00:02:00 +02:00
}
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