mirror of https://github.com/PCSX2/pcsx2.git
449 lines
13 KiB
C++
449 lines
13 KiB
C++
#include "Global.h"
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#include "usb.h"
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#include "HidDevice.h"
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#define VID 0x054c
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#define PID 0x0268
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// Unresponsive period required before calling DS3Check().
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#define DEVICE_CHECK_DELAY 2000
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// Unresponsive period required before calling DS3Enum(). Note that enum is always called on first check.
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#define DEVICE_ENUM_DELAY 10000
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// Delay between when DS3Check() and DS3Enum() actually do stuff.
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#define DOUBLE_CHECK_DELAY 1000
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#define DOUBLE_ENUM_DELAY 20000
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// Send at least one message every 3 seconds - basically just makes sure the right light(s) are on.
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// Not really necessary.
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#define UPDATE_INTERVAL 3000
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unsigned int lastDS3Check = 0;
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unsigned int lastDS3Enum = 0;
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typedef void (__cdecl *_usb_init)(void);
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typedef int (__cdecl *_usb_close)(usb_dev_handle *dev);
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typedef int (__cdecl *_usb_get_string_simple)(usb_dev_handle *dev, int index, char *buf, size_t buflen);
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typedef usb_dev_handle *(__cdecl *_usb_open)(struct usb_device *dev);
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typedef int (__cdecl *_usb_find_busses)(void);
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typedef int (__cdecl *_usb_find_devices)(void);
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typedef struct usb_bus *(__cdecl *_usb_get_busses)(void);
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typedef usb_dev_handle *(__cdecl *_usb_open)(struct usb_device *dev);
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typedef int (__cdecl *_usb_control_msg)(usb_dev_handle *dev, int requesttype, int request, int value, int index, char *bytes, int size, int timeout);
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_usb_init pusb_init;
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_usb_close pusb_close;
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_usb_get_string_simple pusb_get_string_simple;
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_usb_open pusb_open;
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_usb_find_busses pusb_find_busses;
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_usb_find_devices pusb_find_devices;
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_usb_get_busses pusb_get_busses;
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_usb_control_msg pusb_control_msg;
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HMODULE hModLibusb = 0;
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int DualShock3Possible();
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void EnumDualShock3s();
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void UninitLibUsb() {
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if (hModLibusb) {
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FreeLibrary(hModLibusb);
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hModLibusb = 0;
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}
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}
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void TryInitDS3(usb_device *dev) {
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while (dev) {
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if (dev->descriptor.idVendor == VID && dev->descriptor.idProduct == PID) {
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usb_dev_handle *handle = pusb_open(dev);
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if (handle) {
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char junk[20];
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// This looks like HidD_GetFeature with a feature report id of 0xF2 to me and a length of 17.
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// That doesn't work, however, and 17 is shorter than the report length.
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pusb_control_msg(handle, 0xa1, 1, 0x03f2, dev->config->interface->altsetting->bInterfaceNumber, junk, 17, 1000);
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pusb_close(handle);
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}
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}
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if (dev->num_children) {
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for (int i=0; i<dev->num_children; i++) {
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TryInitDS3(dev->children[i]);
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}
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}
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dev = dev->next;
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}
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}
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void DS3Enum(unsigned int time) {
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if (time - lastDS3Enum < DOUBLE_ENUM_DELAY) {
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return;
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}
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lastDS3Enum = time;
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pusb_find_busses();
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pusb_find_devices();
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}
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void DS3Check(unsigned int time) {
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if (time - lastDS3Check < DOUBLE_CHECK_DELAY) {
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return;
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}
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if (!lastDS3Check) {
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DS3Enum(time);
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}
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lastDS3Check = time;
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usb_bus *bus = pusb_get_busses();
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while (bus) {
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TryInitDS3(bus->devices);
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bus = bus->next;
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}
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}
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int InitLibUsb() {
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if (hModLibusb) {
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return 1;
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}
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hModLibusb = LoadLibraryA("C:\\windows\\system32\\libusb0.dll");
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if (hModLibusb) {
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if ((pusb_init = (_usb_init) GetProcAddress(hModLibusb, "usb_init")) &&
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(pusb_close = (_usb_close) GetProcAddress(hModLibusb, "usb_close")) &&
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(pusb_get_string_simple = (_usb_get_string_simple) GetProcAddress(hModLibusb, "usb_get_string_simple")) &&
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(pusb_open = (_usb_open) GetProcAddress(hModLibusb, "usb_open")) &&
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(pusb_find_busses = (_usb_find_busses) GetProcAddress(hModLibusb, "usb_find_busses")) &&
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(pusb_find_devices = (_usb_find_devices) GetProcAddress(hModLibusb, "usb_find_devices")) &&
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(pusb_get_busses = (_usb_get_busses) GetProcAddress(hModLibusb, "usb_get_busses")) &&
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(pusb_control_msg = (_usb_control_msg) GetProcAddress(hModLibusb, "usb_control_msg"))) {
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pusb_init();
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return 1;
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}
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UninitLibUsb();
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}
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return 0;
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}
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int DualShock3Possible() {
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return InitLibUsb();
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}
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#include <pshpack1.h>
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struct MotorState {
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unsigned char duration;
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unsigned char force;
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};
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struct LightState {
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// 0xFF makes it stay on.
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unsigned char duration;
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// Have to make one or the other non-zero to turn on light.
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unsigned char dunno[2];
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// 0 is fully lit.
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unsigned char dimness;
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// Have to make non-zero to turn on light.
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unsigned char on;
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};
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// Data sent to DS3 to set state.
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struct DS3Command {
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unsigned char id;
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unsigned char unsure;
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// Small is first, then big.
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MotorState motors[2];
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unsigned char noClue[4];
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// 2 is pad 1 light, 4 is pad 2, 8 is pad 3, 16 is pad 4. No clue about the others.
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unsigned char lightFlags;
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// Lights are in reverse order. pad 1 is last.
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LightState lights[4];
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unsigned char dunno[18];
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};
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#include <poppack.h>
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int CharToAxis(unsigned char c) {
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int v = (int)c + ((unsigned int)c >> 7);
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return ((c-128) * FULLY_DOWN)>>7;
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}
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int CharToButton(unsigned char c) {
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int v = (int)c + ((unsigned int)c >> 7);
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return (v * FULLY_DOWN)>>8;
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}
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class DualShock3Device : public Device {
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// Cached last vibration values by pad and motor.
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// Need this, as only one value is changed at a time.
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int ps2Vibration[2][4][2];
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int vibration[2];
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public:
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int index;
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HANDLE hFile;
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DS3Command sendState;
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unsigned char getState[49];
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OVERLAPPED readop;
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OVERLAPPED writeop;
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int writeCount;
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int lastWrite;
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unsigned int dataLastReceived;
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int writeQueued;
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int writing;
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int StartRead() {
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int res = ReadFile(hFile, &getState, sizeof(getState), 0, &readop);
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return (res || GetLastError() == ERROR_IO_PENDING);
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}
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void QueueWrite() {
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// max of 2 queued writes allowed, one for either motor.
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if (writeQueued < 2) {
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writeQueued++;
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StartWrite();
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}
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}
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int StartWrite() {
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if (!writing && writeQueued) {
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lastWrite = GetTickCount();
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writing++;
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writeQueued--;
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sendState.motors[0].duration = 0x50;
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sendState.motors[1].duration = 0x50;
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int bigForce = vibration[0] * 256/FULLY_DOWN;
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if (bigForce > 255) bigForce = 255;
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sendState.motors[1].force = (unsigned char) bigForce;
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sendState.motors[0].force = (unsigned char) (vibration[1] >= FULLY_DOWN/2);
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// Can't seem to have them both non-zero at once.
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if (sendState.motors[writeCount&1].force) {
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sendState.motors[(writeCount&1)^1].force = 0;
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sendState.motors[(writeCount&1)^1].duration = 0;
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}
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writeCount++;
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int res = WriteFile(hFile, &sendState, sizeof(sendState), 0, &writeop);
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return (res || GetLastError() == ERROR_IO_PENDING);
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}
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return 1;
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}
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DualShock3Device(int index, wchar_t *name, wchar_t *path) : Device(DS3, OTHER, name, path, L"DualShock 3") {
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writeCount = 0;
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writing = 0;
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writeQueued = 0;
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memset(&readop, 0, sizeof(readop));
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memset(&writeop, 0, sizeof(writeop));
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memset(&sendState, 0, sizeof(sendState));
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sendState.id = 1;
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int temp = (index&4);
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sendState.lightFlags = (1 << (temp+1));
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sendState.lights[3-temp].duration = 0xFF;
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sendState.lights[3-temp].dunno[0] = 1;
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sendState.lights[3-temp].on = 1;
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memset(ps2Vibration, 0, sizeof(ps2Vibration));
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vibration[0] = vibration[1] = 0;
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this->index = index;
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int i;
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for (i=0; i<16; i++) {
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AddPhysicalControl(PSHBTN, i, 0);
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}
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for (; i<23; i++) {
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AddPhysicalControl(ABSAXIS, i, 0);
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}
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AddFFAxis(L"Big Motor", 0);
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AddFFAxis(L"Small Motor", 1);
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AddFFEffectType(L"Constant Effect", L"Constant", EFFECT_CONSTANT);
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hFile = INVALID_HANDLE_VALUE;
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}
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wchar_t *GetPhysicalControlName(PhysicalControl *c) {
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const static wchar_t *names[] = {
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L"Square",
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L"Cross",
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L"Circle",
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L"Triangle",
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L"R1",
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L"L1",
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L"R2",
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L"L2",
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L"R3",
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L"L3",
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L"Left",
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L"Down",
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L"Right",
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L"Up",
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L"Start",
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L"Select",
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L"L-Stick X",
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L"L-Stick Y",
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L"R-Stick X",
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L"R-Stick Y",
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L"Left/Right Tilt",
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L"Forward/Back Tilt",
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L"???",
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};
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unsigned int i = (unsigned int) (c - physicalControls);
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if (i < sizeof(names)/sizeof(names[0])) {
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return (wchar_t*)names[i];
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}
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return Device::GetPhysicalControlName(c);
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}
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int Activate(void *d) {
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if (active) Deactivate();
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// Give grace period before get mad.
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lastWrite = dataLastReceived = GetTickCount();
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readop.hEvent = CreateEvent(0, 0, 0, 0);
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writeop.hEvent = CreateEvent(0, 0, 0, 0);
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hFile = CreateFileW(instanceID, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
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if (!readop.hEvent || !writeop.hEvent || hFile == INVALID_HANDLE_VALUE ||
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!StartRead()) {
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Deactivate();
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return 0;
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}
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active = 1;
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AllocState();
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return 1;
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}
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int Update() {
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if (!active) return 0;
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HANDLE h[2] = {
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readop.hEvent,
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writeop.hEvent
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};
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unsigned int time = GetTickCount();
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if (time - lastWrite > UPDATE_INTERVAL) {
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QueueWrite();
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}
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while (1) {
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DWORD res = WaitForMultipleObjects(2, h, 0, 0);
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if (res == WAIT_OBJECT_0) {
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dataLastReceived = time;
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if (!StartRead()) {
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Deactivate();
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return 0;
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}
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physicalControlState[0] = CharToButton(getState[25]);
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physicalControlState[1] = CharToButton(getState[24]);
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physicalControlState[2] = CharToButton(getState[23]);
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physicalControlState[3] = CharToButton(getState[22]);
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physicalControlState[4] = CharToButton(getState[21]);
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physicalControlState[5] = CharToButton(getState[20]);
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physicalControlState[6] = CharToButton(getState[19]);
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physicalControlState[7] = CharToButton(getState[18]);
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physicalControlState[10] = CharToButton(getState[17]);
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physicalControlState[11] = CharToButton(getState[16]);
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physicalControlState[12] = CharToButton(getState[15]);
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physicalControlState[13] = CharToButton(getState[14]);
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physicalControlState[8] = ((getState[2]&4)/4) * FULLY_DOWN;
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physicalControlState[9] = ((getState[2]&2)/2) * FULLY_DOWN;
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physicalControlState[15] = ((getState[2]&1)/1) * FULLY_DOWN;
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physicalControlState[14] = ((getState[2]&8)/8) * FULLY_DOWN;
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physicalControlState[16] = CharToAxis(getState[6]);
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physicalControlState[17] = CharToAxis(getState[7]);
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physicalControlState[18] = CharToAxis(getState[8]);
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physicalControlState[19] = CharToAxis(getState[9]);
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physicalControlState[20] = CharToAxis(getState[42]+128);
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physicalControlState[21] = CharToAxis(getState[44]+128);
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physicalControlState[22] = CharToAxis(getState[46]+128);
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continue;
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}
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else if (res == WAIT_OBJECT_0+1) {
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writing = 0;
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if (!writeQueued && (vibration[0] | vibration[1])) {
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QueueWrite();
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}
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if (!StartWrite()) {
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Deactivate();
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return 0;
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}
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}
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else {
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if (time-dataLastReceived >= DEVICE_CHECK_DELAY) {
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if (time-dataLastReceived >= DEVICE_ENUM_DELAY) {
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DS3Enum(time);
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}
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DS3Check(time);
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QueueWrite();
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}
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}
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break;
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}
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return 1;
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}
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void SetEffects(unsigned char port, unsigned int slot, unsigned char motor, unsigned char force) {
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ps2Vibration[port][slot][motor] = force;
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vibration[0] = vibration[1] = 0;
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for (int p=0; p<2; p++) {
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for (int s=0; s<4; s++) {
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for (int i=0; i<pads[p][s].numFFBindings; i++) {
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// Technically should also be a *65535/BASE_SENSITIVITY, but that's close enough to 1 for me.
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ForceFeedbackBinding *ffb = &pads[p][s].ffBindings[i];
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vibration[0] += (int)((ffb->axes[0].force * (__int64)ps2Vibration[p][s][ffb->motor]) / 255);
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vibration[1] += (int)((ffb->axes[1].force * (__int64)ps2Vibration[p][s][ffb->motor]) / 255);
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}
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}
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}
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// Make sure at least 2 writes are queued, to update both motors.
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QueueWrite();
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QueueWrite();
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}
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void SetEffect(ForceFeedbackBinding *binding, unsigned char force) {
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PadBindings pBackup = pads[0][0];
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pads[0][0].ffBindings = binding;
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pads[0][0].numFFBindings = 1;
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SetEffects(0, 0, binding->motor, 255);
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pads[0][0] = pBackup;
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}
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void Deactivate() {
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if (hFile != INVALID_HANDLE_VALUE) {
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CancelIo(hFile);
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CloseHandle(hFile);
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hFile = INVALID_HANDLE_VALUE;
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}
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if (readop.hEvent) {
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CloseHandle(readop.hEvent);
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}
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if (writeop.hEvent) {
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CloseHandle(writeop.hEvent);
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}
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writing = 0;
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writeQueued = 0;
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memset(ps2Vibration, 0, sizeof(ps2Vibration));
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vibration[0] = vibration[1] = 0;
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FreeState();
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active = 0;
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}
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~DualShock3Device() {
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}
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};
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void EnumDualShock3s() {
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if (!InitLibUsb()) return;
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HidDeviceInfo *foundDevs = 0;
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int numDevs = FindHids(&foundDevs, VID, PID);
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if (!numDevs) return;
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int index = 0;
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for (int i=0; i<numDevs; i++) {
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if (foundDevs[i].caps.FeatureReportByteLength == 49 &&
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foundDevs[i].caps.InputReportByteLength == 49 &&
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foundDevs[i].caps.OutputReportByteLength == 49) {
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wchar_t temp[100];
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wsprintfW(temp, L"DualShock 3 #%i", index+1);
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dm->AddDevice(new DualShock3Device(index, temp, foundDevs[i].path));
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index++;
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}
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free(foundDevs[i].path);
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}
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free(foundDevs);
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}
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