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[HID] Redo service

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wheremyfoodat 2023-06-06 00:57:48 +03:00
parent 629e00251c
commit dea8b9ec2e
4 changed files with 109 additions and 14 deletions
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63
src/core/services/hid.cpp
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@ -30,6 +30,12 @@ void HIDService::reset() {
for (auto& e : events) {
e = std::nullopt;
}
// Reset indices for the various HID shared memory entries
nextPadIndex = nextTouchscreenIndex = nextAccelerometerIndex = nextGyroIndex = 0;
// Reset button states
newButtons = oldButtons = 0;
circlePadX = circlePadY = 0;
}
void HIDService::handleSyncRequest(u32 messagePointer) {
@ -108,13 +114,58 @@ void HIDService::getIPCHandles(u32 messagePointer) {
}
}
void HIDService::pressKey(u32 key) { sharedMem[0]++; *(u32*)&sharedMem[0x28] |= key; }
void HIDService::releaseKey(u32 key) { sharedMem[0]++; *(u32*)&sharedMem[0x28] &= ~key; }
void HIDService::setCirclepadX(u16 x) { sharedMem[0]++; *(u16*)&sharedMem[0x28 + 0xC] = x; }
void HIDService::setCirclepadY(u16 y) { sharedMem[0]++; *(u16*)&sharedMem[0x28 + 0xC + 2] = y; }
void HIDService::updateInputs(u64 currentTick) {
// Update shared memory if it has been initialized
if (sharedMem) {
// First, update the pad state
if (nextPadIndex == 0) {
writeSharedMem<u64>(0x8, readSharedMem<u64>(0x0)); // Copy previous tick count
writeSharedMem<u64>(0x0, currentTick); // Write new tick count
}
writeSharedMem<u32>(0x10, nextPadIndex); // Index last updated by the HID module
writeSharedMem<u32>(0x1C, newButtons); // Current PAD state
writeSharedMem<s16>(0x20, circlePadX); // Current circle pad state
writeSharedMem<s16>(0x22, circlePadY);
const size_t padEntryOffset = 0x28 + (nextPadIndex * 0x10); // Offset in the array of 8 pad entries
nextPadIndex = (nextPadIndex + 1) % 8; // Move to next entry
const u32 pressed = (newButtons ^ oldButtons) & newButtons; // Pressed buttons
const u32 released = (newButtons ^ oldButtons) & oldButtons; // Released buttons
oldButtons = newButtons;
writeSharedMem<u32>(padEntryOffset, newButtons);
writeSharedMem<u32>(padEntryOffset + 4, pressed);
writeSharedMem<u32>(padEntryOffset + 8, released);
writeSharedMem<s16>(padEntryOffset + 12, circlePadX);
writeSharedMem<s16>(padEntryOffset + 14, circlePadY);
// Next, update touchscreen state
if (nextTouchscreenIndex == 0) {
writeSharedMem<u64>(0xB0, readSharedMem<u64>(0xA8)); // Copy previous tick count
writeSharedMem<u64>(0xA8, currentTick); // Write new tick count
}
writeSharedMem<u32>(0xB8, nextTouchscreenIndex); // Index last updated by the HID module
nextTouchscreenIndex = (nextTouchscreenIndex + 1) % 8; // Move to next entry
// Next, update accelerometer state
if (nextAccelerometerIndex == 0) {
writeSharedMem<u64>(0x110, readSharedMem<u64>(0x108)); // Copy previous tick count
writeSharedMem<u64>(0x108, currentTick); // Write new tick count
}
writeSharedMem<u32>(0x118, nextAccelerometerIndex); // Index last updated by the HID module
nextAccelerometerIndex = (nextAccelerometerIndex + 1) % 8; // Move to next entry
// Next, update gyro state
if (nextGyroIndex == 0) {
writeSharedMem<u64>(0x160, readSharedMem<u64>(0x158)); // Copy previous tick count
writeSharedMem<u64>(0x158, currentTick); // Write new tick count
}
writeSharedMem<u32>(0x168, nextGyroIndex); // Index last updated by the HID module
nextGyroIndex = (nextGyroIndex + 1) % 32; // Move to next entry
}
// TODO: We don't currently have inputs but we must at least try to signal the HID key input events now and then
void HIDService::updateInputs() {
// For some reason, the original developers decided to signal the HID events each time the OS rescanned inputs
// Rather than once every time the state of a key, or the accelerometer state, etc is updated
// This means that the OS will signal the events even if literally nothing happened