mirror of
https://github.com/libretro/RetroArch
synced 2025-02-03 17:54:04 +00:00
225 lines
8.1 KiB
C
225 lines
8.1 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2013 - Jason Fetters
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <IOKit/hid/IOHIDManager.h>
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#include "apple/common/apple_input.h"
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#include "apple/common/hidpad/hidpad.h"
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struct hidpad_connection
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{
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uint32_t slot;
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struct hidpad_interface* interface;
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void* hidpad;
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IOHIDDeviceRef device;
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uint8_t data[2048];
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};
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static IOHIDManagerRef g_hid_manager;
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static struct hidpad_connection g_connected_pads[MAX_PADS];
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void hidpad_send_control(struct hidpad_connection* connection, uint8_t* data, size_t size)
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{
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IOHIDDeviceSetReport(connection->device, kIOHIDReportTypeOutput, 0x01, data, size);
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}
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// NOTE: I pieced this together through trial and error, any corrections are welcome
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static void hid_device_input_callback(void* context, IOReturn result, void* sender, IOHIDValueRef value)
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{
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struct hidpad_connection* connection = context;
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IOHIDElementRef element = IOHIDValueGetElement(value);
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uint32_t type = IOHIDElementGetType(element);
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uint32_t page = IOHIDElementGetUsagePage(element);
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uint32_t use = IOHIDElementGetUsage(element);
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// Mouse handler
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if (!connection)
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{
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if (type == kIOHIDElementTypeInput_Button && page == kHIDPage_Button)
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{
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CFIndex state = IOHIDValueGetIntegerValue(value);
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if (state) g_current_input_data.mouse_buttons |= (1 << (use - 1));
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else g_current_input_data.mouse_buttons &= ~(1 << (use - 1));
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}
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else if (type == kIOHIDElementTypeInput_Misc && page == kHIDPage_GenericDesktop)
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{
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static const uint32_t axis_use_ids[2] = { 48, 49 };
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for (int i = 0; i < 2; i ++)
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if (use == axis_use_ids[i])
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g_current_input_data.mouse_delta[i] += IOHIDValueGetIntegerValue(value);
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}
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}
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// Joystick handler: TODO: Can GamePad work the same?
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else if (IOHIDDeviceConformsTo(connection->device, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick))
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{
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if (type == kIOHIDElementTypeInput_Button && page == kHIDPage_Button)
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{
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CFIndex state = IOHIDValueGetIntegerValue(value);
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if (state) g_current_input_data.pad_buttons[connection->slot] |= (1 << (use - 1));
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else g_current_input_data.pad_buttons[connection->slot] &= ~(1 << (use - 1));
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}
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else if (type == kIOHIDElementTypeInput_Misc && page == kHIDPage_GenericDesktop)
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{
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static const uint32_t axis_use_ids[4] = { 48, 49, 50, 53 };
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for (int i = 0; i < 4; i ++)
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{
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if (use == axis_use_ids[i])
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{
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CFIndex min = IOHIDElementGetPhysicalMin(element);
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CFIndex max = IOHIDElementGetPhysicalMax(element) - min;
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CFIndex state = IOHIDValueGetIntegerValue(value) - min;
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float val = (float)state / (float)max;
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g_current_input_data.pad_axis[connection->slot][i] = ((val * 2.0f) - 1.0f) * 32767.0f;
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}
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}
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}
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}
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}
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static void hid_device_removed(void* context, IOReturn result, void* sender)
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{
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struct hidpad_connection* connection = (struct hidpad_connection*)context;
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if (connection && connection->slot < MAX_PADS)
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{
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g_current_input_data.pad_buttons[connection->slot] = 0;
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memset(g_current_input_data.pad_axis[connection->slot], 0, sizeof(g_current_input_data.pad_axis));
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if (connection->interface)
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connection->interface->disconnect(connection->hidpad);
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memset(connection, 0, sizeof(*connection));
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}
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IOHIDDeviceClose(sender, kIOHIDOptionsTypeNone);
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}
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static void hid_device_report(void* context, IOReturn result, void *sender, IOHIDReportType type, uint32_t reportID, uint8_t *report, CFIndex reportLength)
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{
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struct hidpad_connection* connection = (struct hidpad_connection*)context;
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connection->interface->packet_handler(connection->hidpad, report, reportLength);
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}
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static void hid_manager_device_attached(void* context, IOReturn result, void* sender, IOHIDDeviceRef device)
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{
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bool is_pad = (IOHIDDeviceConformsTo(device, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick) ||
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IOHIDDeviceConformsTo(device, kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad));
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struct hidpad_connection* connection = 0;
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if (is_pad)
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{
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for (int i = 0; i != MAX_PADS; i ++)
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{
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if (!g_connected_pads[i].device)
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{
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connection = &g_connected_pads[i];
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connection->device = device;
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connection->slot = i;
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break;
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}
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}
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if (!connection)
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return;
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}
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IOHIDDeviceOpen(device, kIOHIDOptionsTypeNone);
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IOHIDDeviceScheduleWithRunLoop(device, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
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IOHIDDeviceRegisterRemovalCallback(device, hid_device_removed, connection);
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CFStringRef device_name = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
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if (is_pad && device_name)
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{
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static const struct { const char* name; struct hidpad_interface* iface; } hidpad_map[] = {
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{ "Nintendo RVL-CNT-01", &hidpad_wii },
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{ "PLAYSTATION(R)3 Controller", &hidpad_ps3 },
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{ 0, 0} };
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char buffer[1024];
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CFStringGetCString(device_name, buffer, 1024, kCFStringEncodingUTF8);
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for (int i = 0; hidpad_map[i].name; i ++)
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{
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if (strstr(buffer, hidpad_map[i].name))
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{
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connection->interface = hidpad_map[i].iface;
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IOHIDDeviceRegisterInputReportCallback(device, connection->data, 2048, hid_device_report, connection);
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connection->hidpad = connection->interface->connect(connection, connection->slot);
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return;
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}
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}
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}
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IOHIDDeviceRegisterInputValueCallback(device, hid_device_input_callback, connection);
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}
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static void append_matching_dictionary(CFMutableArrayRef array, uint32_t page, uint32_t use)
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{
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CFMutableDictionaryRef matcher = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
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CFNumberRef pagen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &page);
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CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsagePageKey), pagen);
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CFRelease(pagen);
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CFNumberRef usen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &use);
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CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsageKey), usen);
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CFRelease(usen);
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CFArrayAppendValue(array, matcher);
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CFRelease(matcher);
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}
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void osx_pad_init()
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{
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if (!g_hid_manager)
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{
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g_hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
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CFMutableArrayRef matcher = CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks);
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append_matching_dictionary(matcher, kHIDPage_GenericDesktop, kHIDUsage_GD_Mouse);
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append_matching_dictionary(matcher, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick);
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append_matching_dictionary(matcher, kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad);
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IOHIDManagerSetDeviceMatchingMultiple(g_hid_manager, matcher);
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CFRelease(matcher);
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IOHIDManagerRegisterDeviceMatchingCallback(g_hid_manager, hid_manager_device_attached, 0);
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IOHIDManagerScheduleWithRunLoop(g_hid_manager, CFRunLoopGetMain(), kCFRunLoopCommonModes);
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IOHIDManagerOpen(g_hid_manager, kIOHIDOptionsTypeNone);
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}
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}
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void osx_pad_quit()
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{
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if (g_hid_manager)
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{
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IOHIDManagerClose(g_hid_manager, kIOHIDOptionsTypeNone);
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IOHIDManagerUnscheduleFromRunLoop(g_hid_manager, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
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CFRelease(g_hid_manager);
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}
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g_hid_manager = 0;
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}
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