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Ability to manually edit Wiimote/CC mappings #1240

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Ability to manually edit Wiimote/CC mappings #1240

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1de7f60
Update BT.c
smdstudios Oct 15, 2024
9c4dbb5
Update BT.c
smdstudios Oct 15, 2024
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43 changes: 39 additions & 4 deletions kernel/BT.c
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,9 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
/* WiiU Pro Controller Documentation from TeHaxor69 */
/* lwBT ported from LibOGC */

#define IR_CFG_FILE 0x93005180
#define IR_CFG_SIZE 0x93005184

#include "global.h"
#include "string.h"
#include "BT.h"
Expand Down Expand Up @@ -738,10 +741,41 @@ void BTUpdateRegisters(void)
if(inited == 0)
return;

if(intr == 1)
{
intr = 0;
__readintrdataCB();
// Try to load Wiimote/Classic Controller bindings from ircc.ini
const char *filenames[2] = {
file_sd, file_usb,
"sd:/ircc.ini",
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Why not in the app directory?
Cluttering up the root directory with all kinds of files is not nice.

"usb:/ircc.ini"
};

int i;
FIL f;
FRESULT res = FR_DISK_ERR;
for (i = 0; i < 2; i++) {
res = f_open_char(&f, filenames[i], FA_READ | FA_OPEN_EXISTING);
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What about stat()?

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Well, it's written the same way in the HID controller loader: https://github.com/FIX94/Nintendont/blob/a69f2f134daf0f06a1b01da4b5337a984ac6dcf1/loader/source/HID.c

if (res == FR_OK)
break;
}

if (res == FR_OK) {
// File found, read the configuration
size_t fsize = f.obj.objsize;
UINT read;
f_read(&f, (void*)IR_CFG_FILE, fsize, &read);
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You might want to check return value?

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Yes, IR_CFG_FILE and IR_CFG_SIZE still need to be defined first with addresses. HID.c of course defines its equivalent terms, but I still need applicable addresses for Wiimotes/CC's: https://github.com/FIX94/Nintendont/blob/master/mem_map.txt

For now I've allocated 0x93005180 and 0x93005184 respectively.

DCFlushRange((void*)IR_CFG_FILE, fsize);
f_close(&f);
// Apply custom config (size is fsize)
*(vu32*)IR_CFG_SIZE = fsize;
} else {
// No config file found; fall back to defaults
*(vu32*)IR_CFG_SIZE = 0;
}

// Continue with the rest of the BTUpdateRegisters function
if(intr == 1)
{
intr = 0;
__readintrdataCB();
__issue_intrread();
}
if(bulk == 1)
Expand All @@ -751,6 +785,7 @@ void BTUpdateRegisters(void)
__issue_bulkread();
}

// Handle connected controllers
u32 i = 0, j = 0;
sync_before_read((void*)0x13003020,0x40);
for( ; i < BTChannelsUsed; ++i)
Expand Down