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pokeemerald/src/ereader_helpers.c

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#include "global.h"
#include "malloc.h"
#include "decompress.h"
#include "ereader_helpers.h"
#include "link.h"
#include "main.h"
#include "union_room.h"
#include "save.h"
#include "sprite.h"
#include "task.h"
#include "util.h"
#include "trainer_hill.h"
#include "constants/easy_chat.h"
#include "constants/trainers.h"
#include "constants/moves.h"
#include "constants/items.h"
#include "constants/trainer_hill.h"
struct SendRecvMgr
{
bool8 isParent;
u8 state; // EREADER_XFR_STATE_*
u8 xferState; // EREADER_XFER_*
u8 checksumResult; // EREADER_CHECKSUM_*
u8 cancellationReason; // EREADER_CANCEL_*
u32 *data; // Payload source or destination
int cursor; // Index of the next word
int size; // Last word index
int checksum;
};
static void GetKeyInput(void);
static u16 DetermineSendRecvState(u8);
static void EnableSio(void);
static void DisableTm3(void);
static void SetUpTransferManager(size_t, const void *, void *);
static void StartTm3(void);
static struct SendRecvMgr sSendRecvMgr;
static u16 sJoyNewOrRepeated;
static u16 sJoyNew;
static u16 sSendRecvStatus;
static u16 sCounter1;
static u32 sCounter2;
static u16 sSavedIme;
static u16 sSavedIe;
static u16 sSavedTm3Cnt;
static u16 sSavedSioCnt;
static u16 sSavedRCnt;
static const struct TrainerHillTrainer sTrainerHillTrainerTemplates_JP[] = {
[0] = {
.name = __("マキエ$$$$$ "),
.facilityClass = FACILITY_CLASS_HEX_MANIAC,
.unused = 0x1,
.speechBefore = { EC_WORD_PREPOSTEROUS, EC_WORD_CASE, EC_WORD_THERE, EC_WORD_TO_HER, EC_WORD_CHALLENGE, EC_WORD_JOKING },
.speechWin = { EC_WORD_HERS, EC_WORD_TRUMP_CARD, EC_MOVE2(SECRET_POWER), EC_WORD_USING, EC_WORD_WON, EC_WORD_EXCL_EXCL },
.speechLose = { EC_WORD_TO_HER, EC_WORD_WIN, EC_WORD_JOKING, EC_WORD_HIGHS, EC_WORD_SCARY, EC_WORD_ELLIPSIS_EXCL },
.speechAfter = { EC_WORD_IGNORANT, EC_WORD_SO, EC_WORD_TODAY, EC_WORD_NIGHTTIME, EC_WORD_YOU_RE, EC_WORD_ELLIPSIS_ELLIPSIS_ELLIPSIS },
.mons = {
[0] = NULL_BATTLE_TOWER_POKEMON,
[1] = NULL_BATTLE_TOWER_POKEMON,
[2] = NULL_BATTLE_TOWER_POKEMON,
[3] = {
.species = SPECIES_SWALOT,
.heldItem = ITEM_SHELL_BELL,
.moves = { MOVE_SLUDGE_BOMB, MOVE_SHADOW_BALL, MOVE_PAIN_SPLIT, MOVE_YAWN },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 55,
.attackEV = 255,
.defenseEV = 100,
.speedEV = 0,
.spAttackEV = 0,
.spDefenseEV = 100,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 1,
.personality = 0x80,
.nickname = __("マルノーム$$$$$$"),
.friendship = 255
},
[4] = {
.species = SPECIES_DUSTOX,
.heldItem = ITEM_BRIGHT_POWDER,
.moves = { MOVE_SILVER_WIND, MOVE_SLUDGE_BOMB, MOVE_SHADOW_BALL, MOVE_GIGA_DRAIN },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 0,
.attackEV = 255,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x6,
.nickname = __("ドクケイル$$$$$$"),
.friendship = 255
},
[5] = {
.species = SPECIES_RELICANTH,
.heldItem = ITEM_QUICK_CLAW,
.moves = { MOVE_ANCIENT_POWER, MOVE_SURF, MOVE_EARTHQUAKE, MOVE_AMNESIA },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 100,
.attackEV = 0,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 155,
.spDefenseEV = 255,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x2f,
.nickname = __("ジーランス$$$$$$"),
.friendship = 255
},
}
},
[1] = {
.name = __("ハルヒト$$$$ "),
.facilityClass = FACILITY_CLASS_CAMPER,
.unused = 0x1,
.speechBefore = { EC_MOVE2(BOUNCE), EC_WORD_AS_MUCH_AS, EC_EMPTY_WORD, EC_WORD_THEY_RE, EC_WORD_STRONG, EC_WORD_EXCL },
.speechWin = { EC_MOVE(FLY), EC_WORD_AS_MUCH_AS, EC_EMPTY_WORD, EC_WORD_THEY_RE, EC_WORD_HAPPY, EC_WORD_EXCL },
.speechLose = { EC_MOVE2(MINIMIZE), EC_WORD_AS_MUCH_AS, EC_EMPTY_WORD, EC_WORD_THEY_RE, EC_WORD_SAD, EC_WORD_EXCL },
.speechAfter = { EC_MOVE(BITE), EC_WORD_AS_MUCH_AS, EC_EMPTY_WORD, EC_WORD_THEY_RE, EC_WORD_ANGRY, EC_WORD_EXCL },
.mons = {
[0] = NULL_BATTLE_TOWER_POKEMON,
[1] = NULL_BATTLE_TOWER_POKEMON,
[2] = NULL_BATTLE_TOWER_POKEMON,
[3] = {
.species = SPECIES_CACTURNE,
.heldItem = ITEM_QUICK_CLAW,
.moves = { MOVE_GIGA_DRAIN, MOVE_FEINT_ATTACK, MOVE_THUNDER_PUNCH, MOVE_GROWTH },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 55,
.attackEV = 0,
.defenseEV = 100,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 100,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x8c,
.nickname = __("ノクタス$$$$$$$"),
.friendship = 255
},
[4] = {
.species = SPECIES_SWELLOW,
.heldItem = ITEM_BRIGHT_POWDER,
.moves = { MOVE_FACADE, MOVE_AERIAL_ACE, MOVE_QUICK_ATTACK, MOVE_DOUBLE_TEAM },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 255,
.attackEV = 255,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 0,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x80,
.nickname = __("オオスバメ$$$$$$"),
.friendship = 255
},
[5] = {
.species = SPECIES_WHISCASH,
.heldItem = ITEM_CHESTO_BERRY,
.moves = { MOVE_SURF, MOVE_EARTHQUAKE, MOVE_AMNESIA, MOVE_REST },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 0,
.attackEV = 255,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x0,
.nickname = __("ナマズン$$$$$$$"),
.friendship = 255
},
}
},
[2] = {
.name = __("メイコ$$$$$ "),
.facilityClass = FACILITY_CLASS_SCHOOL_KID_F,
.unused = 0x1,
.speechBefore = { EC_WORD_SHINE, EC_WORD_POKEMON, EC_WORD_RELEASE, EC_WORD_WAS, EC_MOVE2(FRUSTRATION), EC_WORD_WITHOUT },
.speechWin = { EC_WORD_SHINE, EC_WORD_POKEMON, EC_WORD_TO_HER, EC_MOVE2(PRESENT), EC_WORD_KNOWS, EC_WORD_WITHOUT },
.speechLose = { EC_WORD_THAT, EC_WORD_ABOVE, EC_WORD_LOST, EC_WORD_STORES, EC_WORD_JOKING, EC_WORD_ELLIPSIS_ELLIPSIS_ELLIPSIS },
.speechAfter = { EC_WORD_ENTERTAINING, EC_WORD_NONE, EC_WORD_HEY_QUES, EC_WORD_ALMOST, EC_WORD_EXCL, EC_EMPTY_WORD },
.mons = {
[0] = NULL_BATTLE_TOWER_POKEMON,
[1] = NULL_BATTLE_TOWER_POKEMON,
[2] = NULL_BATTLE_TOWER_POKEMON,
[3] = {
.species = SPECIES_DELCATTY,
.heldItem = ITEM_LUM_BERRY,
.moves = { MOVE_SING, MOVE_BODY_SLAM, MOVE_SHADOW_BALL, MOVE_IRON_TAIL },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 0,
.attackEV = 255,
.defenseEV = 0,
.speedEV = 255,
.spAttackEV = 0,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x3,
.nickname = __("エネコロロ$$$$$$"),
.friendship = 255
},
[4] = {
.species = SPECIES_ROSELIA,
.heldItem = ITEM_LEFTOVERS,
.moves = { MOVE_GIGA_DRAIN, MOVE_GRASS_WHISTLE, MOVE_TOXIC, MOVE_LEECH_SEED },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 255,
.attackEV = 0,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 1,
.personality = 0x6,
.nickname = __("ロゼリア$$$$$$$"),
.friendship = 255
},
[5] = {
.species = SPECIES_BEAUTIFLY,
.heldItem = ITEM_BRIGHT_POWDER,
.moves = { MOVE_SILVER_WIND, MOVE_AERIAL_ACE, MOVE_ATTRACT, MOVE_PSYCHIC },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 100,
.attackEV = 200,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 200,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x6,
.nickname = __("アゲハント$$$$$$"),
.friendship = 255
},
}
},
[3] = {
.name = __("ピエール$$$$ "),
.facilityClass = FACILITY_CLASS_GENTLEMAN,
.unused = 0x1,
.speechBefore = { EC_WORD_SHE_WAS, EC_WORD_NO_1, EC_WORD_STRONG, EC_WORD_UNCLE, EC_WORD_THERE, EC_WORD_EXCL },
.speechWin = { EC_WORD_HAHAHA, EC_WORD_TEACHER, EC_WORD_BECOMES, EC_WORD_GIVE, EC_WORD_IS_IT_QUES, EC_EMPTY_WORD },
.speechLose = { EC_WORD_OUTSIDE, EC_WORD_UNCLE, EC_WORD_SURPRISE, EC_WORD_THESE, EC_WORD_HEY_QUES, EC_WORD_ELLIPSIS_EXCL },
.speechAfter = { EC_WORD_HE_S, EC_WORD_NO_1, EC_WORD_STRONG, EC_WORD_CHILDREN, EC_WORD_CAN_T, EC_WORD_EXCL_EXCL },
.mons = {
[0] = NULL_BATTLE_TOWER_POKEMON,
[1] = NULL_BATTLE_TOWER_POKEMON,
[2] = NULL_BATTLE_TOWER_POKEMON,
[3] = {
.species = SPECIES_MAWILE,
.heldItem = ITEM_BRIGHT_POWDER,
.moves = { MOVE_CRUNCH, MOVE_FLAMETHROWER, MOVE_THUNDER_PUNCH, MOVE_COMET_PUNCH },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 0,
.attackEV = 0,
.defenseEV = 100,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 155,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 1,
.personality = 0x0,
.nickname = __("クチート$$$$$$$"),
.friendship = 255
},
[4] = {
.species = SPECIES_SHARPEDO,
.heldItem = ITEM_SCOPE_LENS,
.moves = { MOVE_SURF, MOVE_CRUNCH, MOVE_DOUBLE_EDGE, MOVE_EARTHQUAKE },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 255,
.attackEV = 0,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x96,
.nickname = __("サメハダー$$$$$$"),
.friendship = 255
},
[5] = {
.species = SPECIES_BANETTE,
.heldItem = ITEM_LUM_BERRY,
.moves = { MOVE_PSYCHIC, MOVE_SHADOW_BALL, MOVE_THUNDERBOLT, MOVE_WILL_O_WISP },
.level = 0,
.ppBonuses = 0x0,
.hpEV = 255,
.attackEV = 0,
.defenseEV = 0,
.speedEV = 0,
.spAttackEV = 255,
.spDefenseEV = 0,
.otId = 0x10000000,
.hpIV = 5,
.attackIV = 5,
.defenseIV = 5,
.speedIV = 5,
.spAttackIV = 5,
.spDefenseIV = 5,
.abilityNum = 0,
.personality = 0x96,
.nickname = __("ジュペッタ$$$$$$"),
.friendship = 255
},
}
},
};
static u8 GetTrainerHillUnkVal(void)
{
return (gSaveBlock1Ptr->trainerHill.unused + 1) % 256;
}
static bool32 ValidateTrainerChecksum(struct EReaderTrainerHillTrainer * hillTrainer)
{
int checksum = CalcByteArraySum((u8 *)hillTrainer, offsetof(typeof(*hillTrainer), checksum));
if (checksum != hillTrainer->checksum)
return FALSE;
return TRUE;
}
bool8 ValidateTrainerHillData(struct EReaderTrainerHillSet * hillSet)
{
u32 i;
u32 checksum;
int numTrainers = hillSet->numTrainers;
// Validate number of trainers
if (numTrainers < 1 || numTrainers > NUM_TRAINER_HILL_TRAINERS)
return FALSE;
// Validate trainers
for (i = 0; i < numTrainers; i++)
{
if (!ValidateTrainerChecksum(&hillSet->trainers[i]))
return FALSE;
}
// Validate checksum
checksum = CalcByteArraySum((u8 *)hillSet->trainers, numTrainers * sizeof(struct EReaderTrainerHillTrainer));
if (checksum != hillSet->checksum)
return FALSE;
return TRUE;
}
static bool32 ValidateTrainerHillChecksum(struct EReaderTrainerHillSet *hillSet)
{
u32 checksum;
int numTrainers = hillSet->numTrainers;
if (numTrainers < 1 || numTrainers > NUM_TRAINER_HILL_TRAINERS)
return FALSE;
checksum = CalcByteArraySum((u8 *)hillSet->trainers, sizeof(struct EReaderTrainerHillSet) - offsetof(struct EReaderTrainerHillSet, trainers));
if (checksum != hillSet->checksum)
return FALSE;
return TRUE;
}
static bool32 TryWriteTrainerHill_Internal(struct EReaderTrainerHillSet * hillSet, struct TrHillTag * hillTag)
{
int i;
AGB_ASSERT_EX(hillSet->dummy == 0, "cereader_tool.c", 450);
AGB_ASSERT_EX(hillSet->id == 0, "cereader_tool.c", 452);
memset(hillTag, 0, SECTOR_SIZE);
hillTag->numTrainers = hillSet->numTrainers;
hillTag->unused1 = GetTrainerHillUnkVal();
hillTag->numFloors = (hillSet->numTrainers + 1) / TRAINER_HILL_TRAINERS_PER_FLOOR;
for (i = 0; i < hillSet->numTrainers; i++)
{
if (!(i & 1))
{
hillTag->floors[i / TRAINER_HILL_TRAINERS_PER_FLOOR].trainerNum1 = hillSet->trainers[i].trainerNum;
hillTag->floors[i / TRAINER_HILL_TRAINERS_PER_FLOOR].display = hillSet->trainers[i].display;
hillTag->floors[i / TRAINER_HILL_TRAINERS_PER_FLOOR].trainers[0] = hillSet->trainers[i].trainer;
}
else
{
hillTag->floors[i / TRAINER_HILL_TRAINERS_PER_FLOOR].trainerNum2 = hillSet->trainers[i].trainerNum;
hillTag->floors[i / TRAINER_HILL_TRAINERS_PER_FLOOR].trainers[1] = hillSet->trainers[i].trainer;
}
}
if (i & 1)
{
hillTag->floors[i / TRAINER_HILL_TRAINERS_PER_FLOOR].trainers[1] = sTrainerHillTrainerTemplates_JP[i / TRAINER_HILL_TRAINERS_PER_FLOOR];
}
hillTag->checksum = CalcByteArraySum((u8 *)hillTag->floors, NUM_TRAINER_HILL_FLOORS * sizeof(struct TrHillFloor));
if (TryWriteSpecialSaveSector(SECTOR_ID_TRAINER_HILL, (u8 *)hillTag) != SAVE_STATUS_OK)
return FALSE;
return TRUE;
}
bool32 TryWriteTrainerHill(struct EReaderTrainerHillSet * hillSet)
{
void *buffer = AllocZeroed(SECTOR_SIZE);
bool32 result = TryWriteTrainerHill_Internal(hillSet, buffer);
Free(buffer);
return result;
}
static bool32 TryReadTrainerHill_Internal(struct EReaderTrainerHillSet * dest, u8 * buffer)
{
if (TryReadSpecialSaveSector(SECTOR_ID_TRAINER_HILL, buffer) != SAVE_STATUS_OK)
return FALSE;
memcpy(dest, buffer, sizeof(struct EReaderTrainerHillSet));
if (!ValidateTrainerHillChecksum(dest))
return FALSE;
return TRUE;
}
static bool32 TryReadTrainerHill(struct EReaderTrainerHillSet * hillSet)
{
u8 *buffer = AllocZeroed(SECTOR_SIZE);
bool32 result = TryReadTrainerHill_Internal(hillSet, buffer);
Free(buffer);
return result;
}
bool32 ReadTrainerHillAndValidate(void)
{
struct EReaderTrainerHillSet *hillSet = AllocZeroed(SECTOR_SIZE);
bool32 result = TryReadTrainerHill(hillSet);
Free(hillSet);
return result;
}
int EReader_Send(int size, const void * src)
{
int result;
int sendStatus;
EReaderHelper_SaveRegsState();
while (1)
{
GetKeyInput();
if (sJoyNew & B_BUTTON)
gShouldAdvanceLinkState = 2;
sendStatus = EReaderHandleTransfer(1, size, src, NULL);
sSendRecvStatus = sendStatus;
if ((sSendRecvStatus & EREADER_XFER_MASK) == 0 && sSendRecvStatus & EREADER_CHECKSUM_OK_MASK)
{
result = 0;
break;
}
else if (sSendRecvStatus & EREADER_CANCEL_KEY_MASK)
{
result = 1;
break;
}
else if (sSendRecvStatus & EREADER_CANCEL_TIMEOUT_MASK)
{
result = 2;
break;
}
else
{
gShouldAdvanceLinkState = 0;
VBlankIntrWait();
}
}
CpuFill32(0, &sSendRecvMgr, sizeof(sSendRecvMgr));
EReaderHelper_RestoreRegsState();
return result;
}
int EReader_Recv(void * dest)
{
int result;
int recvStatus;
EReaderHelper_SaveRegsState();
while (1)
{
GetKeyInput();
if (sJoyNew & B_BUTTON)
gShouldAdvanceLinkState = 2;
recvStatus = EReaderHandleTransfer(0, 0, NULL, dest);
sSendRecvStatus = recvStatus;
if ((sSendRecvStatus & EREADER_XFER_MASK) == 0 && sSendRecvStatus & EREADER_CHECKSUM_OK_MASK)
{
result = 0;
break;
}
else if (sSendRecvStatus & EREADER_CANCEL_KEY_MASK)
{
result = 1;
break;
}
else if (sSendRecvStatus & EREADER_CANCEL_TIMEOUT_MASK)
{
result = 2;
break;
}
else
{
gShouldAdvanceLinkState = 0;
VBlankIntrWait();
}
}
CpuFill32(0, &sSendRecvMgr, sizeof(sSendRecvMgr));
EReaderHelper_RestoreRegsState();
return result;
}
static void CloseSerial(void)
{
REG_IME = 0;
REG_IE &= ~(INTR_FLAG_TIMER3 | INTR_FLAG_SERIAL);
REG_IME = 1;
REG_SIOCNT = 0;
REG_TM3CNT_H = 0;
REG_IF = INTR_FLAG_TIMER3 | INTR_FLAG_SERIAL;
}
static void OpenSerialMulti(void)
{
REG_IME = 0;
REG_IE &= ~(INTR_FLAG_TIMER3 | INTR_FLAG_SERIAL);
REG_IME = 1;
REG_RCNT = 0;
REG_SIOCNT = SIO_MULTI_MODE;
REG_SIOCNT |= SIO_INTR_ENABLE | SIO_115200_BPS;
REG_IME = 0;
REG_IE |= INTR_FLAG_SERIAL;
REG_IME = 1;
if (sSendRecvMgr.state == 0)
CpuFill32(0, &sSendRecvMgr, sizeof(sSendRecvMgr));
}
static void OpenSerial32(void)
{
REG_RCNT = 0;
REG_SIOCNT = SIO_32BIT_MODE | SIO_INTR_ENABLE;
REG_SIOCNT |= SIO_MULTI_SD;
gShouldAdvanceLinkState = 0;
sCounter1 = 0;
sCounter2 = 0;
}
int EReaderHandleTransfer(u8 mode, size_t size, const void * data, void * recvBuffer)
{
switch (sSendRecvMgr.state)
{
case EREADER_XFR_STATE_INIT:
OpenSerialMulti();
sSendRecvMgr.xferState = EREADER_XFER_EXE;
sSendRecvMgr.state = EREADER_XFR_STATE_HANDSHAKE;
break;
case EREADER_XFR_STATE_HANDSHAKE:
if (DetermineSendRecvState(mode))
EnableSio();
if (gShouldAdvanceLinkState == 2)
{
sSendRecvMgr.cancellationReason = EREADER_CANCEL_KEY;
sSendRecvMgr.state = EREADER_XFR_STATE_DONE;
}
break;
case EREADER_XFR_STATE_START:
OpenSerial32();
SetUpTransferManager(size, data, recvBuffer);
sSendRecvMgr.state = EREADER_XFR_STATE_TRANSFER;
// fall through
case EREADER_XFR_STATE_TRANSFER:
if (gShouldAdvanceLinkState == 2)
{
sSendRecvMgr.cancellationReason = EREADER_CANCEL_KEY;
sSendRecvMgr.state = EREADER_XFR_STATE_DONE;
}
else
{
sCounter1++;
sCounter2++;
if (!sSendRecvMgr.isParent && sCounter2 > 60)
{
sSendRecvMgr.cancellationReason = EREADER_CANCEL_TIMEOUT;
sSendRecvMgr.state = EREADER_XFR_STATE_DONE;
}
if (sSendRecvMgr.xferState != EREADER_XFER_CHK)
{
if (sSendRecvMgr.isParent && sCounter1 > 2)
{
EnableSio();
sSendRecvMgr.xferState = EREADER_XFER_CHK;
}
else
{
EnableSio();
sSendRecvMgr.xferState = EREADER_XFER_CHK;
}
}
}
break;
case EREADER_XFR_STATE_TRANSFER_DONE:
OpenSerialMulti();
sSendRecvMgr.state = EREADER_XFR_STATE_CHECKSUM;
break;
case EREADER_XFR_STATE_CHECKSUM:
if (sSendRecvMgr.isParent == TRUE && sCounter1 > 2)
EnableSio();
if (++sCounter1 > 60)
{
sSendRecvMgr.cancellationReason = EREADER_CANCEL_TIMEOUT;
sSendRecvMgr.state = EREADER_XFR_STATE_DONE;
}
break;
case EREADER_XFR_STATE_DONE:
if (sSendRecvMgr.xferState)
{
CloseSerial();
sSendRecvMgr.xferState = 0;
}
break;
}
return (sSendRecvMgr.xferState << EREADER_XFER_SHIFT)
| (sSendRecvMgr.cancellationReason << EREADER_CANCEL_SHIFT)
| (sSendRecvMgr.checksumResult << EREADER_CHECKSUM_SHIFT);
}
static u16 DetermineSendRecvState(u8 mode)
{
bool16 resp;
if ((*(vu32 *)REG_ADDR_SIOCNT & (SIO_MULTI_SI | SIO_MULTI_SD)) == SIO_MULTI_SD && mode)
resp = sSendRecvMgr.isParent = TRUE;
else
resp = sSendRecvMgr.isParent = FALSE;
return resp;
}
static void SetUpTransferManager(size_t size, const void * data, void * recvBuffer)
{
if (sSendRecvMgr.isParent)
{
REG_SIOCNT |= SIO_38400_BPS;
sSendRecvMgr.data = (void *)data;
REG_SIODATA32 = size;
sSendRecvMgr.size = size / 4 + 1;
StartTm3();
}
else
{
REG_SIOCNT = REG_SIOCNT;
sSendRecvMgr.data = recvBuffer;
}
}
static void StartTm3(void)
{
REG_TM3CNT_L = -601;
REG_TM3CNT_H = TIMER_INTR_ENABLE;
REG_IME = 0;
REG_IE |= INTR_FLAG_TIMER3;
REG_IME = 1;
}
void EReaderHelper_Timer3Callback(void)
{
DisableTm3();
EnableSio();
}
void EReaderHelper_SerialCallback(void)
{
u16 i, cnt1, cnt2;
u32 recv32;
u16 recv[4];
switch (sSendRecvMgr.state)
{
case EREADER_XFR_STATE_HANDSHAKE:
REG_SIOMLT_SEND = 0xCCD0; // Handshake id
*(u64 *)recv = REG_SIOMLT_RECV;
for (i = 0, cnt1 = 0, cnt2 = 0; i < 4; i++)
{
if (recv[i] == 0xCCD0)
cnt1++;
else if (recv[i] != 0xFFFF)
cnt2++;
}
if (cnt1 == 2 && cnt2 == 0)
sSendRecvMgr.state = 2;
break;
case EREADER_XFR_STATE_TRANSFER:
recv32 = REG_SIODATA32;
// The first value sent by the EReader is the payload size
if (!sSendRecvMgr.cursor && !sSendRecvMgr.isParent)
sSendRecvMgr.size = recv32 / 4 + 1;
if (sSendRecvMgr.isParent == TRUE)
{
// Send mode
if (sSendRecvMgr.cursor < sSendRecvMgr.size)
{
REG_SIODATA32 = sSendRecvMgr.data[sSendRecvMgr.cursor];
sSendRecvMgr.checksum += sSendRecvMgr.data[sSendRecvMgr.cursor];
}
else
{
REG_SIODATA32 = sSendRecvMgr.checksum;
}
}
else
{
// Receive mode
if (sSendRecvMgr.cursor > 0 && sSendRecvMgr.cursor < sSendRecvMgr.size + 1)
{
sSendRecvMgr.data[sSendRecvMgr.cursor - 1] = recv32;
sSendRecvMgr.checksum += recv32;
}
else if (sSendRecvMgr.cursor)
{
if (sSendRecvMgr.checksum == recv32)
sSendRecvMgr.checksumResult = EREADER_CHECKSUM_OK;
else
sSendRecvMgr.checksumResult = EREADER_CHECKSUM_ERR;
}
sCounter2 = 0;
}
if (++sSendRecvMgr.cursor < sSendRecvMgr.size + 2)
{
if (sSendRecvMgr.isParent)
REG_TM3CNT_H |= TIMER_ENABLE;
else
EnableSio();
}
else
{
sSendRecvMgr.state = EREADER_XFR_STATE_TRANSFER_DONE;
sCounter1 = 0;
}
break;
case EREADER_XFR_STATE_CHECKSUM:
if (!sSendRecvMgr.isParent)
REG_SIOMLT_SEND = sSendRecvMgr.checksumResult;
*(vu64 *)recv = REG_SIOMLT_RECV;
if (recv[1] == EREADER_CHECKSUM_OK || recv[1] == EREADER_CHECKSUM_ERR)
{
if (sSendRecvMgr.isParent == TRUE)
sSendRecvMgr.checksumResult = recv[1]; // EReader has (in)validated the payload
sSendRecvMgr.state = EREADER_XFR_STATE_DONE;
}
break;
}
}
static void EnableSio(void)
{
REG_SIOCNT |= SIO_ENABLE;
}
static void DisableTm3(void)
{
REG_TM3CNT_H &= ~TIMER_ENABLE;
REG_TM3CNT_L = 0xFDA7;
}
static void GetKeyInput(void)
{
int rawKeys = REG_KEYINPUT ^ KEYS_MASK;
sJoyNew = rawKeys & ~sJoyNewOrRepeated;
sJoyNewOrRepeated = rawKeys;
}
void EReaderHelper_SaveRegsState(void)
{
sSavedIme = REG_IME;
sSavedIe = REG_IE;
sSavedTm3Cnt = REG_TM3CNT_H;
sSavedSioCnt = REG_SIOCNT;
sSavedRCnt = REG_RCNT;
}
void EReaderHelper_RestoreRegsState(void)
{
REG_IME = sSavedIme;
REG_IE = sSavedIe;
REG_TM3CNT_H = sSavedTm3Cnt;
REG_SIOCNT = sSavedSioCnt;
REG_RCNT = sSavedRCnt;
}
void EReaderHelper_ClearSendRecvMgr(void)
{
CpuFill32(0, &sSendRecvMgr, sizeof(sSendRecvMgr));
}
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