port siirtc from pokeruby

This commit is contained in:
YamaArashi 2016-11-02 14:06:41 -07:00
parent a99e9a16c6
commit 452bbe41cf
8 changed files with 510 additions and 1189 deletions

File diff suppressed because it is too large Load Diff

View File

@ -302,7 +302,7 @@ _081DD044:
ldrb r0, [r4, o_SoundChannel_type]
tst r0, 0x30
beq _081DD068
bl sub_81DD264
bl sub_82DF49C
b _081DD228
_081DD068:
mov r10, r10, lsl 16
@ -465,8 +465,8 @@ _081DD25E:
.pool
thumb_func_end SoundMainRAM
arm_func_start sub_81DD264
sub_81DD264:
arm_func_start sub_82DF49C
sub_82DF49C:
ldr r6, [r4, o_SoundChannel_wav]
ldrb r0, [r4, o_SoundChannel_status]
tst r0, 0x20
@ -505,10 +505,10 @@ _081DD2B4:
ldrb r0, [r4, o_SoundChannel_type]
tst r0, 0x10
bne _081DD3C0
bl sub_81DD520
bl sub_82DF758
mov r0, r1
add r3, r3, 0x1
bl sub_81DD520
bl sub_82DF758
sub r1, r1, r0
_081DD308:
ldr r6, [r5]
@ -534,11 +534,11 @@ _081DD310:
b _081DD364
_081DD358:
add r3, r3, lr
bl sub_81DD520
bl sub_82DF758
mov r0, r1
_081DD364:
add r3, r3, 0x1
bl sub_81DD520
bl sub_82DF758
sub r1, r1, r0
_081DD370:
adds r5, r5, 0x40000000
@ -565,10 +565,10 @@ _081DD3B0:
b _081DD3B0
_081DD3C0:
sub r3, r3, 0x1
bl sub_81DD520
bl sub_82DF758
mov r0, r1
sub r3, r3, 0x1
bl sub_81DD520
bl sub_82DF758
sub r1, r1, r0
_081DD3D8:
ldr r6, [r5]
@ -594,11 +594,11 @@ _081DD3E0:
b _081DD434
_081DD428:
sub r3, r3, lr
bl sub_81DD520
bl sub_82DF758
mov r0, r1
_081DD434:
sub r3, r3, 0x1
bl sub_81DD520
bl sub_82DF758
sub r1, r1, r0
_081DD440:
adds r5, r5, 0x40000000
@ -663,10 +663,10 @@ _081DD4F4:
str r7, [r5, 0x630]
str r6, [r5], 0x4
pop {r8,r12,pc}
arm_func_end sub_81DD264
arm_func_end sub_82DF49C
arm_func_start sub_81DD520
sub_81DD520:
arm_func_start sub_82DF758
sub_82DF758:
push {r0,r2,r5-r7,lr}
mov r0, r3, lsr 6
ldr r1, [r4, o_SoundChannel_xpi]
@ -704,7 +704,7 @@ _081DD594:
ldrsb r1, [r5, r0]
pop {r0,r2,r5-r7,pc}
.pool
arm_func_end sub_81DD520
arm_func_end sub_82DF758
thumb_func_start SoundMainBTM
SoundMainBTM:

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@ -693,7 +693,7 @@ Reset: @ 80008F4
ands r2, r1
strh r2, [r0, 0xA]
ldrh r0, [r0, 0xA]
bl RTC_SetReadOnly
bl SiiRtcProtect
movs r0, 0xFF
bl SoftReset
pop {r4}

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@ -202,8 +202,8 @@ GameFreakRTC_Init: @ 802F21C
movs r0, 0
strh r0, [r5]
bl GameFreakRTC_ClearIME
bl RTC_SetReadWrite
bl RTC_Init
bl SiiRtcUnprotect
bl SiiRtcProbe
ldr r4, =gUnknown_03000DCC
strb r0, [r4]
bl GameFreakRTC_RestoreIME
@ -281,7 +281,7 @@ GameFreakRTC_GetRTCDateTimeInternal: @ 802F2B8
adds r4, r0, 0
bl GameFreakRTC_ClearIME
adds r0, r4, 0
bl RTC_GetDateTime
bl SiiRtcGetDateTime
bl GameFreakRTC_RestoreIME
pop {r4}
pop {r0}
@ -295,7 +295,7 @@ GameFreakRTC_GetControlReg: @ 802F2D0
adds r4, r0, 0
bl GameFreakRTC_ClearIME
adds r0, r4, 0
bl RTC_GetControlReg
bl SiiRtcGetStatus
bl GameFreakRTC_RestoreIME
pop {r4}
pop {r0}
@ -452,7 +452,7 @@ _0802F3E6:
GameFreakRTC_Reset: @ 802F3F8
push {lr}
bl GameFreakRTC_ClearIME
bl RTC_Reset
bl SiiRtcReset
bl GameFreakRTC_RestoreIME
pop {r0}
bx r0

54
include/siirtc.h Normal file
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@ -0,0 +1,54 @@
#ifndef GUARD_RTC_H
#define GUARD_RTC_H
#include "gba/gba.h"
#define SIIRTCINFO_INTFE 0x01 // frequency interrupt enable
#define SIIRTCINFO_INTME 0x02 // per-minute interrupt enable
#define SIIRTCINFO_INTAE 0x04 // alarm interrupt enable
#define SIIRTCINFO_24HOUR 0x40 // 0: 12-hour mode, 1: 24-hour mode
#define SIIRTCINFO_POWER 0x80 // power on or power failure occurred
enum
{
MONTH_JAN = 1,
MONTH_FEB,
MONTH_MAR,
MONTH_APR,
MONTH_MAY,
MONTH_JUN,
MONTH_JUL,
MONTH_AUG,
MONTH_SEP,
MONTH_OCT,
MONTH_NOV,
MONTH_DEC
};
struct SiiRtcInfo
{
u8 year;
u8 month;
u8 day;
u8 dayOfWeek;
u8 hour;
u8 minute;
u8 second;
u8 status;
u8 alarmHour;
u8 alarmMinute;
};
void SiiRtcUnprotect();
void SiiRtcProtect();
u8 SiiRtcProbe();
bool8 SiiRtcReset();
bool8 SiiRtcGetStatus(struct SiiRtcInfo *rtc);
bool8 SiiRtcSetStatus(struct SiiRtcInfo *rtc);
bool8 SiiRtcGetDateTime(struct SiiRtcInfo *rtc);
bool8 SiiRtcSetDateTime(struct SiiRtcInfo *rtc);
bool8 SiiRtcGetTime(struct SiiRtcInfo *rtc);
bool8 SiiRtcSetTime(struct SiiRtcInfo *rtc);
bool8 SiiRtcSetAlarm(struct SiiRtcInfo *rtc);
#endif // GUARD_RTC_H

View File

@ -215,7 +215,7 @@ SECTIONS {
src/agb_flash.o(.text);
src/agb_flash_1m.o(.text);
src/agb_flash_mx.o(.text);
asm/librtc.o(.text);
src/siirtc.o(.text);
asm/librfu.o(.text);
asm/libagbsyscall.o(.text);
tools/agbcc/lib/libgcc.a:_call_via_rX.o(.text);
@ -251,7 +251,7 @@ SECTIONS {
src/agb_flash_1m.o(.rodata);
src/agb_flash_mx.o(.rodata);
src/agb_flash_le.o(.rodata);
data/librtc_rodata.o(.rodata);
src/siirtc.o(.rodata);
data/librfu_rodata.o(.rodata);
tools/agbcc/lib/libgcc.a:_divdi3.o(.rodata);
tools/agbcc/lib/libgcc.a:_udivdi3.o(.rodata);

432
src/siirtc.c Normal file
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@ -0,0 +1,432 @@
// Ruby/Sapphire/Emerald cartridges contain a Seiko Instruments Inc. (SII)
// S-3511A real-time clock (RTC). This library ("SIIRTC_V001") is for
// communicating with the RTC.
#include "gba/gba.h"
#include "siirtc.h"
#define STATUS_INTFE 0x02 // frequency interrupt enable
#define STATUS_INTME 0x08 // per-minute interrupt enable
#define STATUS_INTAE 0x20 // alarm interrupt enable
#define STATUS_24HOUR 0x40 // 0: 12-hour mode, 1: 24-hour mode
#define STATUS_POWER 0x80 // power on or power failure occurred
#define TEST_MODE 0x80 // flag in the "second" byte
#define ALARM_AM 0x00
#define ALARM_PM 0x80
#define OFFSET_YEAR offsetof(struct SiiRtcInfo, year)
#define OFFSET_MONTH offsetof(struct SiiRtcInfo, month)
#define OFFSET_DAY offsetof(struct SiiRtcInfo, day)
#define OFFSET_DAY_OF_WEEK offsetof(struct SiiRtcInfo, dayOfWeek)
#define OFFSET_HOUR offsetof(struct SiiRtcInfo, hour)
#define OFFSET_MINUTE offsetof(struct SiiRtcInfo, minute)
#define OFFSET_SECOND offsetof(struct SiiRtcInfo, second)
#define OFFSET_STATUS offsetof(struct SiiRtcInfo, status)
#define OFFSET_ALARM_HOUR offsetof(struct SiiRtcInfo, alarmHour)
#define OFFSET_ALARM_MINUTE offsetof(struct SiiRtcInfo, alarmMinute)
#define INFO_BUF(info, index) (*((u8 *)(info) + (index)))
#define DATETIME_BUF(info, index) INFO_BUF(info, OFFSET_YEAR + index)
#define DATETIME_BUF_LEN (OFFSET_SECOND - OFFSET_YEAR + 1)
#define TIME_BUF(info, index) INFO_BUF(info, OFFSET_HOUR + index)
#define TIME_BUF_LEN (OFFSET_SECOND - OFFSET_HOUR + 1)
#define WR 0 // command for writing data
#define RD 1 // command for reading data
#define CMD(n) (0x60 | (n << 1))
#define CMD_RESET CMD(0)
#define CMD_STATUS CMD(1)
#define CMD_DATETIME CMD(2)
#define CMD_TIME CMD(3)
#define CMD_ALARM CMD(4)
#define GPIO_PORT_DATA (*(vu16 *)0x80000C4)
#define GPIO_PORT_DIRECTION (*(vu16 *)0x80000C6)
#define GPIO_PORT_READ_ENABLE (*(vu16 *)0x80000C8)
extern vu16 GPIOPortDirection;
static u16 sDummy; // unused variable
static bool8 sLocked;
static int WriteCommand(u8 value);
static int WriteData(u8 value);
static u8 ReadData();
static void EnableGpioPortRead();
static void DisableGpioPortRead();
static const char AgbLibRtcVersion[] = "SIIRTC_V001";
void SiiRtcUnprotect()
{
EnableGpioPortRead();
sLocked = FALSE;
}
void SiiRtcProtect()
{
DisableGpioPortRead();
sLocked = TRUE;
}
u8 SiiRtcProbe()
{
u8 errorCode;
struct SiiRtcInfo rtc;
if (!SiiRtcGetStatus(&rtc))
return 0;
errorCode = 0;
if ((rtc.status & (SIIRTCINFO_POWER | SIIRTCINFO_24HOUR)) == SIIRTCINFO_POWER
|| (rtc.status & (SIIRTCINFO_POWER | SIIRTCINFO_24HOUR)) == 0)
{
// The RTC is in 12-hour mode. Reset it and switch to 24-hour mode.
// Note that the conditions are redundant and equivalent to simply
// "(rtc.status & SIIRTCINFO_24HOUR) == 0". It's possible that this
// was also intended to handle resetting the clock after power failure
// but a mistake was made.
if (!SiiRtcReset())
return 0;
errorCode++;
}
SiiRtcGetTime(&rtc);
if (rtc.second & TEST_MODE)
{
// The RTC is in test mode. Reset it to leave test mode.
if (!SiiRtcReset())
return (errorCode << 4) & 0xF0;
errorCode++;
}
return (errorCode << 4) | 1;
}
bool8 SiiRtcReset()
{
u8 result;
struct SiiRtcInfo rtc;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_RESET | WR);
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
rtc.status = SIIRTCINFO_24HOUR;
result = SiiRtcSetStatus(&rtc);
return result;
}
bool8 SiiRtcGetStatus(struct SiiRtcInfo *rtc)
{
u8 statusData;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_STATUS | RD);
GPIO_PORT_DIRECTION = 5;
statusData = ReadData();
rtc->status = (statusData & (STATUS_POWER | STATUS_24HOUR))
| ((statusData & STATUS_INTAE) >> 3)
| ((statusData & STATUS_INTME) >> 2)
| ((statusData & STATUS_INTFE) >> 1);
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
bool8 SiiRtcSetStatus(struct SiiRtcInfo *rtc)
{
u8 statusData;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
statusData = STATUS_24HOUR
| ((rtc->status & SIIRTCINFO_INTAE) << 3)
| ((rtc->status & SIIRTCINFO_INTME) << 2)
| ((rtc->status & SIIRTCINFO_INTFE) << 1);
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_STATUS | WR);
WriteData(statusData);
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
bool8 SiiRtcGetDateTime(struct SiiRtcInfo *rtc)
{
u8 i;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_DATETIME | RD);
GPIO_PORT_DIRECTION = 5;
for (i = 0; i < DATETIME_BUF_LEN; i++)
DATETIME_BUF(rtc, i) = ReadData();
INFO_BUF(rtc, OFFSET_HOUR) &= 0x7F;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
bool8 SiiRtcSetDateTime(struct SiiRtcInfo *rtc)
{
u8 i;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_DATETIME | WR);
for (i = 0; i < DATETIME_BUF_LEN; i++)
WriteData(DATETIME_BUF(rtc, i));
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
bool8 SiiRtcGetTime(struct SiiRtcInfo *rtc)
{
u8 i;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_TIME | RD);
GPIO_PORT_DIRECTION = 5;
for (i = 0; i < TIME_BUF_LEN; i++)
TIME_BUF(rtc, i) = ReadData();
INFO_BUF(rtc, OFFSET_HOUR) &= 0x7F;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
bool8 SiiRtcSetTime(struct SiiRtcInfo *rtc)
{
u8 i;
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIO_PORT_DIRECTION = 7;
WriteCommand(CMD_TIME | WR);
for (i = 0; i < TIME_BUF_LEN; i++)
WriteData(TIME_BUF(rtc, i));
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
bool8 SiiRtcSetAlarm(struct SiiRtcInfo *rtc)
{
u8 i;
u8 alarmData[2];
if (sLocked == TRUE)
return FALSE;
sLocked = TRUE;
// Decode BCD.
alarmData[0] = (rtc->alarmHour & 0xF) + 10 * ((rtc->alarmHour >> 4) & 0xF);
// The AM/PM flag must be set correctly even in 24-hour mode.
if (alarmData[0] < 12)
alarmData[0] = rtc->alarmHour | ALARM_AM;
else
alarmData[0] = rtc->alarmHour | ALARM_PM;
alarmData[1] = rtc->alarmMinute;
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 5;
GPIOPortDirection = 7; // Why is this the only instance that uses a symbol?
WriteCommand(CMD_ALARM | WR);
for (i = 0; i < 2; i++)
WriteData(alarmData[i]);
GPIO_PORT_DATA = 1;
GPIO_PORT_DATA = 1;
sLocked = FALSE;
return TRUE;
}
static int WriteCommand(u8 value)
{
u8 i;
u8 temp;
for (i = 0; i < 8; i++)
{
temp = ((value >> (7 - i)) & 1);
GPIO_PORT_DATA = (temp << 1) | 4;
GPIO_PORT_DATA = (temp << 1) | 4;
GPIO_PORT_DATA = (temp << 1) | 4;
GPIO_PORT_DATA = (temp << 1) | 5;
}
// control reaches end of non-void function
}
static int WriteData(u8 value)
{
u8 i;
u8 temp;
for (i = 0; i < 8; i++)
{
temp = ((value >> i) & 1);
GPIO_PORT_DATA = (temp << 1) | 4;
GPIO_PORT_DATA = (temp << 1) | 4;
GPIO_PORT_DATA = (temp << 1) | 4;
GPIO_PORT_DATA = (temp << 1) | 5;
}
// control reaches end of non-void function
}
static u8 ReadData()
{
u8 i;
u8 temp;
u8 value;
for (i = 0; i < 8; i++)
{
GPIO_PORT_DATA = 4;
GPIO_PORT_DATA = 4;
GPIO_PORT_DATA = 4;
GPIO_PORT_DATA = 4;
GPIO_PORT_DATA = 4;
GPIO_PORT_DATA = 5;
temp = ((GPIO_PORT_DATA & 2) >> 1);
value = (value >> 1) | (temp << 7); // UB: accessing uninitialized var
}
return value;
}
static void EnableGpioPortRead()
{
GPIO_PORT_READ_ENABLE = 1;
}
static void DisableGpioPortRead()
{
GPIO_PORT_READ_ENABLE = 0;
}

View File

@ -497,11 +497,6 @@ gUnknown_03001300: @ 3001300
.space 0x770
.include "src/agb_flash.o"
.space 0x2
gUnknown_03001A7E: @ 3001A7E
.space 0x2
.include "src/siirtc.o"
.include "tools/agbcc/lib/libgcc.a:dp-bit.o"
.include "tools/agbcc/lib/libgcc.a:fp-bit.o"