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Support Multi EmuNAND switching

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... in home button menu
This commit is contained in:
d0k3 2017-01-17 21:44:16 +01:00
parent d15b850a86
commit 0379ba2cd5
3 changed files with 58 additions and 20 deletions
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19
source/godmode.c
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@ -834,7 +834,7 @@ u32 GodMode() {
else if (user_select == 5) SdFormatMenu();
ClearScreenF(true, true, COLOR_STD_BG);
}
InitEmuNandBase();
InitEmuNandBase(true);
InitNandCrypto();
InitExtFS();
@ -947,7 +947,7 @@ u32 GodMode() {
clipboard->n_entries = 0; // remove SD clipboard entries
}
ClearScreenF(true, true, COLOR_STD_BG);
InitEmuNandBase();
InitEmuNandBase(true);
InitExtFS();
GetDirContents(current_dir, current_path);
if (cursor >= current_dir->n_entries) cursor = 0;
@ -1128,8 +1128,9 @@ u32 GodMode() {
exit_mode = GODMODE_EXIT_POWEROFF;
break;
} else if (pad_state & BUTTON_HOME) { // Home menu
const char* optionstr[] = { "Poweroff system", "Reboot system", "SD format menu" };
u32 user_select = ShowSelectPrompt(3, optionstr, "HOME button pressed.\nSelect action:" );
const char* optionstr[] = { "Poweroff system", "Reboot system", "SD format menu", "Switch EmuNAND" };
u32 user_select = ShowSelectPrompt(CheckMultiEmuNand() ? 4 : 3, optionstr,
"HOME button pressed.\nSelect action:" );
if (user_select == 1) {
exit_mode = GODMODE_EXIT_POWEROFF;
break;
@ -1147,9 +1148,17 @@ u32 GodMode() {
ShowPrompt(true, "Reinitialising SD card failed! Retry?"));
}
ClearScreenF(true, true, COLOR_STD_BG);
InitEmuNandBase();
InitEmuNandBase(true);
InitExtFS();
GetDirContents(current_dir, current_path);
} else if (user_select == 4) { // switch EmuNAND offset
while (ShowPrompt(true, "Current EmuNAND offset is %06X.\nSwitch to next offset?", GetEmuNandBase())) {
if (clipboard->n_entries && (DriveType(clipboard->entry[0].path) & DRV_EMUNAND))
clipboard->n_entries = 0; // remove SD clipboard entries
DismountDriveType(DRV_EMUNAND);
InitEmuNandBase(false);
InitExtFS();
}
}
} else if ((pad_state & (CART_INSERT|CART_EJECT)) && (curr_drvtype & DRV_CART)) {
GetDirContents(current_dir, current_path); // refresh cart dir contents

55
source/nand/nand.c
View File

@ -393,10 +393,9 @@ u64 GetNandSizeSectors(u32 nand_src)
if (nand_src == NAND_EMUNAND) { // for EmuNAND
u32 partition_offset = GetPartitionOffsetSector("0:");
u32 emunand_max_sectors = (partition_offset >= (emunand_base_sector + 1)) ? // +1 for safety
partition_offset - (emunand_base_sector + 1) : 0;
u32 emunand_min_sectors = (emunand_base_sector % 0x200000 == 0) ? sysnand_sectors : NAND_MIN_SECTORS;
if (emunand_max_sectors >= sysnand_sectors) return sysnand_sectors;
else return (emunand_min_sectors > emunand_max_sectors) ? 0 : emunand_min_sectors;
partition_offset - (emunand_base_sector + 1) : 0;
u32 emunand_min_sectors = (emunand_base_sector % 0x2000 == 0) ? sysnand_sectors : NAND_MIN_SECTORS;
return (emunand_min_sectors > emunand_max_sectors) ? 0 : emunand_min_sectors;
} else if (nand_src == NAND_IMGNAND) { // for images
u32 img_sectors = (GetMountState() == IMG_NAND) ? GetMountSize() / 0x200 : 0;
return (img_sectors >= sysnand_sectors) ? sysnand_sectors : (img_sectors >= NAND_MIN_SECTORS) ? NAND_MIN_SECTORS : 0;
@ -407,15 +406,43 @@ u64 GetNandSizeSectors(u32 nand_src)
return 0;
}
bool InitEmuNandBase(void)
bool CheckMultiEmuNand(void)
{
emunand_base_sector = 0x000000; // GW type EmuNAND
if (CheckNandType(NAND_EMUNAND))
return true;
emunand_base_sector = 0x000001; // RedNAND type EmuNAND
if (CheckNandType(NAND_EMUNAND))
return true;
return false;
// this only checks for the theoretical possibility
return (GetPartitionOffsetSector("0:") >= (u64) (align(NAND_MIN_SECTORS + 1, 0x2000) * 2));
}
u32 InitEmuNandBase(bool reset)
{
if (!reset) {
u32 last_valid = emunand_base_sector;
// legacy type multiNAND
u32 legacy_sectors = (getMMCDevice(0)->total_size > 0x200000) ? 0x400000 : 0x200000;
emunand_base_sector += legacy_sectors - (emunand_base_sector % legacy_sectors);
if (GetNandSizeSectors(NAND_EMUNAND) && CheckNandType(NAND_EMUNAND))
return emunand_base_sector; // GW type EmuNAND
emunand_base_sector++;
if (GetNandSizeSectors(NAND_EMUNAND) && CheckNandType(NAND_EMUNAND))
return emunand_base_sector; // RedNAND type EmuNAND
// compact type multiNAND
if (last_valid % 0x2000 == 1) {
u32 compact_sectors = align(NAND_MIN_SECTORS + 1, 0x2000);
emunand_base_sector = last_valid + compact_sectors;
if (GetNandSizeSectors(NAND_EMUNAND) && CheckNandType(NAND_EMUNAND))
return emunand_base_sector;
}
}
emunand_base_sector = 0x000000; // GW type EmuNAND
if (!CheckNandType(NAND_EMUNAND))
emunand_base_sector = 0x000001; // RedNAND type EmuNAND
return emunand_base_sector;
}
u32 GetEmuNandBase(void)
{
return emunand_base_sector;
}

4
source/nand/nand.h
View File

@ -50,4 +50,6 @@ u64 GetNandSizeSectors(u32 src);
u32 CheckNandHeader(u8* header);
u32 CheckNandType(u32 src);
bool InitEmuNandBase(void);
bool CheckMultiEmuNand(void);
u32 InitEmuNandBase(bool reset);
u32 GetEmuNandBase(void);