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Updated gamecart reset routines

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thanks @profi200
This commit is contained in:
d0k3 2018-06-08 01:43:45 +02:00
parent a6305206e0
commit e4352d4cb0
3 changed files with 32 additions and 52 deletions
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10
arm9/source/gamecart/gamecart.c
View File

@ -7,7 +7,7 @@
#include "ncch.h"
#include "ncsd.h"
#define CART_INSERTED (!(REG_CARDCONF2 & 0x1))
#define CART_INSERTED (!(REG_CARDSTATUS & 0x1))
typedef struct {
NcsdHeader ncsd;
@ -72,8 +72,8 @@ u32 InitCardRead(CartData* cdata) {
Cart_Secure_Init((u32*) (void*) ncch_header, sec_keys);
// NCSD header and CINFO
Cart_Dummy();
Cart_Dummy();
// Cart_Dummy();
// Cart_Dummy();
CTR_CmdReadData(0, 0x200, 8, cdata->header);
// safety checks, cart size
@ -144,8 +144,8 @@ u32 ReadCartSectors(void* buffer, u32 sector, u32 count, CartData* cdata) {
const u32 max_read = 0x800;
u8* buff = buffer8;
for (u32 i = 0; i < count; i += max_read) {
Cart_Dummy();
Cart_Dummy();
// Cart_Dummy();
// Cart_Dummy();
CTR_CmdReadData(sector + i, 0x200, min(max_read, count - i), buff);
buff += max_read * 0x200;
}

66
arm9/source/gamecart/protocol.c
View File

@ -3,6 +3,7 @@
// Refer to the license.txt file included.
#include "protocol.h"
#include "timer.h"
#include <string.h>
#include <stdlib.h>
@ -42,38 +43,42 @@ u32 BSWAP32(u32 val) {
((val & 0xFF) << 24);
}
// TODO: Verify
static void ResetCartSlot(void)
// updated function by profi200
static void ResetCardSlot(void)
{
REG_CARDCONF2 = 0x0C;
REG_CARDCONF &= ~3;
REG_CARDCYCLES0 = 0x1988;
REG_CARDCYCLES1 = 0x264C;
// boot9 waits here. Unnecessary?
if (REG_CARDCONF2 == 0xC) {
while (REG_CARDCONF2 != 0);
}
REG_CARDSTATUS = 3u<<2; // Request power off
while(REG_CARDSTATUS != 0); // Aotomatically changes to 0 (off)
wait_msec(1*2);
if (REG_CARDCONF2 != 0)
return;
REG_CARDSTATUS = 1u<<2; // Prepare power on
wait_msec(10*2);
REG_CARDCONF2 = 0x4;
while(REG_CARDCONF2 != 0x4);
REG_CARDSTATUS = 2u<<2; // Power on
wait_msec(27*2);
REG_CARDCONF2 = 0x8;
while(REG_CARDCONF2 != 0x8);
// Switch to NTRCARD controller.
REG_CARDCTL = 0; // Select NTRCARD controller, eject IRQ off?
REG_NTRCARDMCNT = NTRCARD_CR1_ENABLE | NTRCARD_CR1_IRQ;
REG_NTRCARDROMCNT = 0x20000000;
wait_msec(120*2);
}
static void SwitchToNTRCARD(void)
{
REG_NTRCARDROMCNT = 0x20000000;
REG_CARDCONF &= ~3;
REG_CARDCONF &= ~0x100;
REG_CARDCTL &= ~3;
REG_CARDCTL &= ~0x100;
REG_NTRCARDMCNT = NTRCARD_CR1_ENABLE;
}
static void SwitchToCTRCARD(void)
{
REG_CTRCARDCNT = 0x10000000;
REG_CARDCONF = (REG_CARDCONF & ~3) | 2;
REG_CARDCTL = (REG_CARDCTL & ~3) | 2;
}
int Cart_IsInserted(void)
@ -86,38 +91,12 @@ u32 Cart_GetID(void)
return CartID;
}
void Cart_Reset(void)
{
ResetCartSlot(); //Seems to reset the cart slot?
REG_CTRCARDSECCNT &= 0xFFFFFFFB;
ioDelay2(0x40000);
SwitchToNTRCARD();
ioDelay2(0x40000);
}
void Cart_Init(void)
{
ResetCartSlot(); //Seems to reset the cart slot?
REG_CTRCARDSECCNT &= 0xFFFFFFFB;
ioDelay(0x40000);
SwitchToNTRCARD();
ioDelay(0x40000);
REG_NTRCARDROMCNT = 0;
REG_NTRCARDMCNT &= 0xFF;
ioDelay(0x40000);
REG_NTRCARDMCNT |= (NTRCARD_CR1_ENABLE | NTRCARD_CR1_IRQ);
REG_NTRCARDROMCNT = NTRCARD_nRESET | NTRCARD_SEC_SEED;
while (REG_NTRCARDROMCNT & NTRCARD_BUSY);
ResetCardSlot(); //Seems to reset the cart slot?
// Reset
NTR_CmdReset();
ioDelay(0x40000);
CartID = NTR_CmdGetCartId();
// 3ds
@ -127,7 +106,6 @@ void Cart_Init(void)
NTR_CmdEnter16ByteMode();
SwitchToCTRCARD();
ioDelay(0xF000);
REG_CTRCARDBLKCNT = 0;
}

8
arm9/source/gamecart/protocol.h
View File

@ -5,8 +5,11 @@
#pragma once
#include "common.h"
#define REG_CARDCONF (*(vu16*)0x1000000C)
#define REG_CARDCONF2 (*(vu8*)0x10000010)
#define REG_CARDCTL (*(vu16*)0x1000000C)
#define REG_CARDSTATUS (*(vu8* )0x10000010)
#define REG_CARDCYCLES0 (*(vu16*)0x10000012)
#define REG_CARDCYCLES1 (*(vu16*)0x10000014)
#define LATENCY 0x822Cu
@ -17,4 +20,3 @@ int Cart_IsInserted(void);
u32 Cart_GetID(void);
void Cart_Secure_Init(u32* buf, u32* out);
void Cart_Dummy(void);
void Cart_Reset(void);