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nsyskbd: Stub KBDGetKey

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Fixes MSX VC games freezing on boot
This commit is contained in:
Exzap 2024-06-25 15:50:06 +02:00
parent 1672f969bb
commit d4c2c3d209
1 changed files with 35 additions and 0 deletions
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35
src/Cafe/OS/libs/nsyskbd/nsyskbd.cpp
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@ -3,6 +3,11 @@
namespace nsyskbd
{
bool IsValidChannel(uint32 channel)
{
return channel >= 0 && channel < 4;
}
uint32 KBDGetChannelStatus(uint32 channel, uint32be* status)
{
static bool loggedError = false;
@ -16,8 +21,38 @@ namespace nsyskbd
return 0;
}
#pragma pack(push, 1)
struct KeyState
{
uint8be channel;
uint8be ukn1;
uint8be _padding[2];
uint32be ukn4;
uint32be ukn8;
uint16be uknC;
};
#pragma pack(pop)
static_assert(sizeof(KeyState) == 0xE); // actual size might be padded to 0x10?
uint32 KBDGetKey(uint32 channel, KeyState* keyState)
{
// used by MSX VC
if(!IsValidChannel(channel) || !keyState)
{
cemuLog_log(LogType::APIErrors, "KBDGetKey(): Invalid parameter");
return 0;
}
keyState->channel = channel;
keyState->ukn1 = 0;
keyState->ukn4 = 0;
keyState->ukn8 = 0;
keyState->uknC = 0;
return 0;
}
void nsyskbd_load()
{
cafeExportRegister("nsyskbd", KBDGetChannelStatus, LogType::Placeholder);
cafeExportRegister("nsyskbd", KBDGetKey, LogType::Placeholder);
}
}