mirror of
https://github.com/hrydgard/ppsspp.git
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429 lines
11 KiB
C++
429 lines
11 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include "HLE.h"
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#include "../MIPS/MIPS.h"
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#include "../CoreTiming.h"
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#include "StdMutex.h"
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#include "sceCtrl.h"
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#include "sceDisplay.h"
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#include "sceKernel.h"
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#include "sceKernelThread.h"
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/* Index for the two analog directions */
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#define CTRL_ANALOG_X 0
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#define CTRL_ANALOG_Y 1
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#define CTRL_MODE_DIGITAL 0
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#define CTRL_MODE_ANALOG 1
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const int PSP_CTRL_ERROR_INVALID_MODE = 0x80000107;
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const int PSP_CTRL_ERROR_INVALID_NUM_BUFFERS = 0x80000104;
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const int PSP_CTRL_ERROR_INVALID_IDLE_PTR = 0x80000023;
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const int NUM_CTRL_BUFFERS = 64;
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enum
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{
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CTRL_WAIT_POSITIVE = 1,
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CTRL_WAIT_NEGATIVE = 2,
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};
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// Returned control data
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struct _ctrl_data
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{
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u32 frame;
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u32 buttons;
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u8 analog[2];
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u8 unused[6];
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};
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struct CtrlLatch {
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u32 btnMake;
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u32 btnBreak;
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u32 btnPress;
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u32 btnRelease;
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};
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//////////////////////////////////////////////////////////////////////////
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// STATE BEGIN
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static bool ctrlInited = false;
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static bool analogEnabled = false;
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static int ctrlLatchBufs = 0;
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static u32 ctrlOldButtons = 0;
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static _ctrl_data ctrlBufs[NUM_CTRL_BUFFERS];
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static _ctrl_data ctrlCurrent;
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static int ctrlBuf = 0;
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static int ctrlBufRead = 0;
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static CtrlLatch latch;
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static int ctrlIdleReset = -1;
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static int ctrlIdleBack = -1;
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static std::vector<SceUID> waitingThreads;
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static std::recursive_mutex ctrlMutex;
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// STATE END
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//////////////////////////////////////////////////////////////////////////
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void __CtrlUpdateLatch()
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{
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std::lock_guard<std::recursive_mutex> guard(ctrlMutex);
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u32 changed = ctrlCurrent.buttons ^ ctrlOldButtons;
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latch.btnMake |= ctrlCurrent.buttons & changed;
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latch.btnBreak |= ctrlOldButtons & changed;
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latch.btnPress |= ctrlCurrent.buttons;
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latch.btnRelease |= (ctrlOldButtons & ~ctrlCurrent.buttons) & changed;
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ctrlLatchBufs++;
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ctrlOldButtons = ctrlCurrent.buttons;
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// Copy in the current data to the current buffer.
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memcpy(&ctrlBufs[ctrlBuf], &ctrlCurrent, sizeof(_ctrl_data));
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ctrlBufs[ctrlBuf].frame = (u32) (CoreTiming::GetTicks() / CoreTiming::GetClockFrequencyMHz());
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if (!analogEnabled)
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{
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ctrlBufs[ctrlBuf].analog[0] = 128;
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ctrlBufs[ctrlBuf].analog[1] = 128;
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}
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ctrlBuf = (ctrlBuf + 1) % NUM_CTRL_BUFFERS;
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// If we wrapped around, push the read head forward.
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// TODO: Is this right?
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if (ctrlBufRead == ctrlBuf)
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ctrlBufRead = (ctrlBufRead + 1) % NUM_CTRL_BUFFERS;
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}
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int __CtrlResetLatch()
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{
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int oldBufs = ctrlLatchBufs;
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memset(&latch, 0, sizeof(CtrlLatch));
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ctrlLatchBufs = 0;
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return oldBufs;
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}
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u32 __CtrlPeekButtons()
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{
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std::lock_guard<std::recursive_mutex> guard(ctrlMutex);
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return ctrlCurrent.buttons;
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}
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// Functions so that the rest of the emulator can control what the sceCtrl interface should return
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// to the game:
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void __CtrlButtonDown(u32 buttonBit)
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{
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std::lock_guard<std::recursive_mutex> guard(ctrlMutex);
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ctrlCurrent.buttons |= buttonBit;
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}
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void __CtrlButtonUp(u32 buttonBit)
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{
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std::lock_guard<std::recursive_mutex> guard(ctrlMutex);
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ctrlCurrent.buttons &= ~buttonBit;
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}
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void __CtrlSetAnalog(float x, float y)
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{
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std::lock_guard<std::recursive_mutex> guard(ctrlMutex);
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// TODO: Circle!
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if (x > 1.0f) x = 1.0f;
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if (y > 1.0f) y = 1.0f;
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if (x < -1.0f) x = -1.0f;
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if (y < -1.0f) y = -1.0f;
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ctrlCurrent.analog[0] = (u8)(x * 127.f + 128.f);
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ctrlCurrent.analog[1] = (u8)(y * 127.f + 128.f);
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}
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int __CtrlReadSingleBuffer(u32 ctrlDataPtr, bool negative)
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{
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_ctrl_data data;
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if (Memory::IsValidAddress(ctrlDataPtr))
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{
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memcpy(&data, &ctrlBufs[ctrlBufRead], sizeof(_ctrl_data));
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ctrlBufRead = (ctrlBufRead + 1) % NUM_CTRL_BUFFERS;
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if (negative)
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data.buttons = ~data.buttons;
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Memory::WriteStruct(ctrlDataPtr, &data);
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return 1;
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}
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return 0;
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}
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int __CtrlReadBuffer(u32 ctrlDataPtr, u32 nBufs, bool negative, bool peek)
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{
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if (nBufs > NUM_CTRL_BUFFERS)
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return PSP_CTRL_ERROR_INVALID_NUM_BUFFERS;
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int resetRead = ctrlBufRead;
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u32 availBufs;
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// Peeks always work, they just go go from now X buffers.
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if (peek)
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availBufs = nBufs;
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else
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{
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availBufs = (ctrlBuf - ctrlBufRead + NUM_CTRL_BUFFERS) % NUM_CTRL_BUFFERS;
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if (availBufs > nBufs)
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availBufs = nBufs;
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}
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ctrlBufRead = (ctrlBuf - availBufs + NUM_CTRL_BUFFERS) % NUM_CTRL_BUFFERS;
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int done = 0;
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for (u32 i = 0; i < availBufs; ++i)
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{
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done += __CtrlReadSingleBuffer(ctrlDataPtr, negative);
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ctrlDataPtr += sizeof(_ctrl_data);
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}
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if (peek)
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ctrlBufRead = resetRead;
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return done;
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}
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void __CtrlVblank()
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{
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// When in vblank sampling mode, this samples the ctrl data into the buffers and updates the latch.
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__CtrlUpdateLatch();
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// Wake up a single thread that was waiting for the buffer.
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retry:
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if (!waitingThreads.empty() && ctrlBuf != ctrlBufRead)
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{
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SceUID threadID = waitingThreads[0];
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waitingThreads.erase(waitingThreads.begin());
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u32 error;
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SceUID wVal = __KernelGetWaitID(threadID, WAITTYPE_CTRL, error);
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// Make sure it didn't get woken or something.
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if (wVal == 0)
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goto retry;
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u32 ctrlDataPtr = __KernelGetWaitValue(threadID, error);
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int retVal = __CtrlReadSingleBuffer(ctrlDataPtr, wVal == CTRL_WAIT_NEGATIVE);
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__KernelResumeThreadFromWait(threadID, retVal);
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}
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}
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void __CtrlInit()
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{
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std::lock_guard<std::recursive_mutex> guard(ctrlMutex);
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if (!ctrlInited)
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{
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__DisplayListenVblank(__CtrlVblank);
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ctrlInited = true;
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}
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ctrlBuf = 1;
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ctrlBufRead = 0;
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ctrlOldButtons = 0;
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ctrlLatchBufs = 0;
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memset(&latch, 0, sizeof(latch));
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// Start with everything released.
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latch.btnRelease = 0xffffffff;
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memset(&ctrlCurrent, 0, sizeof(ctrlCurrent));
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ctrlCurrent.analog[0] = 128;
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ctrlCurrent.analog[1] = 128;
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for (int i = 0; i < NUM_CTRL_BUFFERS; i++)
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memcpy(&ctrlBufs[i], &ctrlCurrent, sizeof(_ctrl_data));
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ctrlIdleReset = -1;
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ctrlIdleBack = -1;
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waitingThreads.clear();
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}
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u32 sceCtrlSetSamplingCycle(u32 cycle)
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{
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if (cycle == 0)
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{
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// TODO: Change to vblank when we support something else.
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DEBUG_LOG(HLE, "sceCtrlSetSamplingCycle(%u)", cycle);
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}
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else
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{
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ERROR_LOG(HLE, "UNIMPL sceCtrlSetSamplingCycle(%u)", cycle);
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}
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return 0;
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}
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int sceCtrlGetSamplingCycle(u32 cyclePtr)
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{
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ERROR_LOG(HLE, "UNIMPL sceCtrlSetSamplingCycle(%08x)", cyclePtr);
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return 0;
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}
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u32 sceCtrlSetSamplingMode(u32 mode)
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{
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u32 retVal = 0;
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DEBUG_LOG(HLE, "sceCtrlSetSamplingMode(%i)", mode);
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if (mode > 1)
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return PSP_CTRL_ERROR_INVALID_MODE;
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retVal = analogEnabled == true ? CTRL_MODE_ANALOG : CTRL_MODE_DIGITAL;
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analogEnabled = mode == CTRL_MODE_ANALOG ? true : false;
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return retVal;
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}
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int sceCtrlGetSamplingMode(u32 modePtr)
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{
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u32 retVal = analogEnabled == true ? CTRL_MODE_ANALOG : CTRL_MODE_DIGITAL;
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DEBUG_LOG(HLE, "%d=sceCtrlGetSamplingMode(%i)", retVal);
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if (Memory::IsValidAddress(modePtr))
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Memory::Write_U32(retVal, modePtr);
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return 0;
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}
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int sceCtrlSetIdleCancelThreshold(int idleReset, int idleBack)
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{
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DEBUG_LOG(HLE, "FAKE sceCtrlSetIdleCancelThreshold(%d, %d)", idleReset, idleBack);
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if (idleReset < -1 || idleBack < -1 || idleReset > 128 || idleBack > 128)
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return SCE_KERNEL_ERROR_INVALID_VALUE;
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ctrlIdleReset = idleReset;
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ctrlIdleBack = idleBack;
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return 0;
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}
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int sceCtrlGetIdleCancelThreshold(u32 idleResetPtr, u32 idleBackPtr)
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{
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DEBUG_LOG(HLE, "sceCtrlSetIdleCancelThreshold(%08x, %08x)", idleResetPtr, idleBackPtr);
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if (idleResetPtr && !Memory::IsValidAddress(idleResetPtr))
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return PSP_CTRL_ERROR_INVALID_IDLE_PTR;
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if (idleBackPtr && !Memory::IsValidAddress(idleBackPtr))
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return PSP_CTRL_ERROR_INVALID_IDLE_PTR;
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if (idleResetPtr)
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Memory::Write_U32(ctrlIdleReset, idleResetPtr);
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if (idleBackPtr)
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Memory::Write_U32(ctrlIdleBack, idleBackPtr);
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return 0;
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}
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void sceCtrlReadBufferPositive(u32 ctrlDataPtr, u32 nBufs)
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{
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int done = __CtrlReadBuffer(ctrlDataPtr, nBufs, false, false);
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if (done != 0)
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{
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RETURN(done);
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DEBUG_LOG(HLE, "%d=sceCtrlReadBufferPositive(%08x, %i)", done, ctrlDataPtr, nBufs);
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}
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else
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{
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waitingThreads.push_back(__KernelGetCurThread());
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__KernelWaitCurThread(WAITTYPE_CTRL, CTRL_WAIT_POSITIVE, ctrlDataPtr, 0, false);
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DEBUG_LOG(HLE, "sceCtrlReadBufferPositive(%08x, %i) - waiting", ctrlDataPtr, nBufs);
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}
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}
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void sceCtrlReadBufferNegative(u32 ctrlDataPtr, u32 nBufs)
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{
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int done = __CtrlReadBuffer(ctrlDataPtr, nBufs, true, false);
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if (done != 0)
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{
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RETURN(done);
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DEBUG_LOG(HLE, "%d=sceCtrlReadBufferNegative(%08x, %i)", done, ctrlDataPtr, nBufs);
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}
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else
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{
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waitingThreads.push_back(__KernelGetCurThread());
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__KernelWaitCurThread(WAITTYPE_CTRL, CTRL_WAIT_NEGATIVE, ctrlDataPtr, 0, false);
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DEBUG_LOG(HLE, "sceCtrlReadBufferNegative(%08x, %i) - waiting", ctrlDataPtr, nBufs);
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}
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}
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int sceCtrlPeekBufferPositive(u32 ctrlDataPtr, u32 nBufs)
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{
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int done = __CtrlReadBuffer(ctrlDataPtr, nBufs, false, true);
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DEBUG_LOG(HLE, "%d=sceCtrlPeekBufferPositive(%08x, %i)", done, ctrlDataPtr, nBufs);
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return done;
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}
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int sceCtrlPeekBufferNegative(u32 ctrlDataPtr, u32 nBufs)
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{
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int done = __CtrlReadBuffer(ctrlDataPtr, nBufs, true, true);
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DEBUG_LOG(HLE, "%d=sceCtrlPeekBufferNegative(%08x, %i)", done, ctrlDataPtr, nBufs);
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return done;
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}
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u32 sceCtrlPeekLatch(u32 latchDataPtr)
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{
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DEBUG_LOG(HLE, "sceCtrlPeekLatch(%08x)", latchDataPtr);
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if (Memory::IsValidAddress(latchDataPtr))
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Memory::WriteStruct(latchDataPtr, &latch);
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return ctrlLatchBufs;
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}
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u32 sceCtrlReadLatch(u32 latchDataPtr)
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{
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DEBUG_LOG(HLE, "sceCtrlReadLatch(%08x)", latchDataPtr);
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if (Memory::IsValidAddress(latchDataPtr))
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Memory::WriteStruct(latchDataPtr, &latch);
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return __CtrlResetLatch();
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}
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static const HLEFunction sceCtrl[] =
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{
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{0x3E65A0EA, 0, "sceCtrlInit"}, //(int unknown), init with 0
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{0x1f4011e6, WrapU_U<sceCtrlSetSamplingMode>, "sceCtrlSetSamplingMode"}, //(int on);
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{0x6A2774F3, WrapU_U<sceCtrlSetSamplingCycle>, "sceCtrlSetSamplingCycle"},
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{0x02BAAD91, WrapI_U<sceCtrlGetSamplingCycle>,"sceCtrlGetSamplingCycle"},
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{0xDA6B76A1, WrapI_U<sceCtrlGetSamplingMode>, "sceCtrlGetSamplingMode"},
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{0x1f803938, WrapV_UU<sceCtrlReadBufferPositive>, "sceCtrlReadBufferPositive"}, //(ctrl_data_t* paddata, int unknown) // unknown should be 1
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{0x3A622550, WrapI_UU<sceCtrlPeekBufferPositive>, "sceCtrlPeekBufferPositive"},
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{0xC152080A, WrapI_UU<sceCtrlPeekBufferNegative>, "sceCtrlPeekBufferNegative"},
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{0x60B81F86, WrapV_UU<sceCtrlReadBufferNegative>, "sceCtrlReadBufferNegative"},
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{0xB1D0E5CD, WrapU_U<sceCtrlPeekLatch>, "sceCtrlPeekLatch"},
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{0x0B588501, WrapU_U<sceCtrlReadLatch>, "sceCtrlReadLatch"},
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{0x348D99D4, 0, "sceCtrl_348D99D4"},
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{0xAF5960F3, 0, "sceCtrl_AF5960F3"},
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{0xA68FD260, 0, "sceCtrlClearRapidFire"},
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{0x6841BE1A, 0, "sceCtrlSetRapidFire"},
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{0xa7144800, WrapI_II<sceCtrlSetIdleCancelThreshold>, "sceCtrlSetIdleCancelThreshold"},
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{0x687660fa, WrapI_UU<sceCtrlGetIdleCancelThreshold>, "sceCtrlGetIdleCancelThreshold"},
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};
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void Register_sceCtrl()
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{
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RegisterModule("sceCtrl", ARRAY_SIZE(sceCtrl), sceCtrl);
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}
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