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(OSX) Clear state when a gamepad is disconnected while running; any newly connected pad will occupy the lowest open slot

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This commit is contained in:
meancoot 2013-09-10 19:22:13 -04:00
parent c3909c6468
commit ff61d97a06
1 changed files with 67 additions and 40 deletions
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107
apple/OSX/hid_pad.c
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@ -19,9 +19,39 @@
// NOTE: I pieced this together through trial and error, any corrections are welcome
static IOHIDManagerRef g_hid_manager;
static uint32_t g_num_pads;
static uint32_t g_pad_slots;
static void hid_input_callback(void* inContext, IOReturn inResult, void* inSender, IOHIDValueRef inIOHIDValueRef)
#define HID_ISSET(t, x) (t & (1 << x))
#define HID_SET(t, x) { t |= (1 << x); }
#define HID_CLEAR(t, x) { t &= ~(1 << x); }
// Set the LEDs on PS3 controllers, if slot >= MAX_PADS the LEDs will be cleared
static void osx_pad_set_leds(IOHIDDeviceRef device, uint32_t slot)
{
char buffer[1024];
CFStringRef device_name = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
if (device_name)
{
CFStringGetCString(device_name, buffer, 1024, kCFStringEncodingUTF8);
if (strncmp(buffer, "PLAYSTATION(R)3 Controller", 1024) == 0)
{
static uint8_t report_buffer[] = {
0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x27,
0x10, 0x00, 0x32, 0xff, 0x27, 0x10, 0x00, 0x32, 0xff, 0x27, 0x10, 0x00,
0x32, 0xff, 0x27, 0x10, 0x00, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
report_buffer[10] = (slot >= MAX_PADS) ? 0 : (1 << (slot + 1));
IOHIDDeviceSetReport(device, kIOHIDReportTypeOutput, 0x01, report_buffer, sizeof(report_buffer));
}
}
}
static void hid_device_input_callback(void* inContext, IOReturn inResult, void* inSender, IOHIDValueRef inIOHIDValueRef)
{
IOHIDElementRef element = IOHIDValueGetElement(inIOHIDValueRef);
IOHIDDeviceRef device = IOHIDElementGetDevice(element);
@ -82,51 +112,49 @@ static void hid_input_callback(void* inContext, IOReturn inResult, void* inSende
}
}
static void hid_device_attached(void* inContext, IOReturn inResult, void* inSender, IOHIDDeviceRef inDevice)
static void hid_device_removed(void* inContext, IOReturn inResult, void* inSender)
{
void* context = 0;
IOHIDDeviceRef inDevice = (IOHIDDeviceRef)inSender;
if (IOHIDDeviceConformsTo(inDevice, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick))
{
if (g_num_pads > 4)
return;
context = (void*)(g_num_pads++);
uint32_t pad_index = (uint32_t)inContext;
if (pad_index < MAX_PADS)
{
HID_CLEAR(g_pad_slots, pad_index);
g_current_input_data.pad_buttons[pad_index] = 0;
memset(g_current_input_data.pad_axis[pad_index], 0, sizeof(g_current_input_data.pad_axis));
}
}
IOHIDDeviceOpen(inDevice, kIOHIDOptionsTypeNone);
IOHIDDeviceScheduleWithRunLoop(inDevice, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
IOHIDDeviceRegisterInputValueCallback(inDevice, hid_input_callback, context);
// Set PS3 LEDs
CFStringRef device_name = IOHIDDeviceGetProperty(inDevice, CFSTR(kIOHIDProductKey));
if (!device_name)
return;
char buffer[1024];
CFStringGetCString(device_name, buffer, 1024, kCFStringEncodingUTF8);
if (strncmp(buffer, "PLAYSTATION(R)3 Controller", 1024) == 0)
{
static uint8_t report_buffer[] = {
0x01,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0x27, 0x10, 0x00, 0x32,
0xff, 0x27, 0x10, 0x00, 0x32,
0xff, 0x27, 0x10, 0x00, 0x32,
0xff, 0x27, 0x10, 0x00, 0x32,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
report_buffer[10] = 1 << (((int)context) + 1);
IOHIDDeviceSetReport(inDevice, kIOHIDReportTypeOutput, 0x01, report_buffer, sizeof(report_buffer));
}
osx_pad_set_leds(inDevice, MAX_PADS);
IOHIDDeviceClose(inDevice, kIOHIDOptionsTypeNone);
}
static void hid_device_removed(void* inContext, IOReturn inResult, void* inSender, IOHIDDeviceRef inDevice)
static void hid_manager_device_attached(void* inContext, IOReturn inResult, void* inSender, IOHIDDeviceRef inDevice)
{
IOHIDDeviceClose(inDevice, kIOHIDOptionsTypeNone);
uint32_t pad_index = 0;
if (IOHIDDeviceConformsTo(inDevice, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick))
{
if ((g_pad_slots & 0xF) == 0xF)
return;
for (pad_index = 0; pad_index != MAX_PADS; pad_index ++)
if (!HID_ISSET(g_pad_slots, pad_index))
{
HID_SET(g_pad_slots, pad_index);
break;
}
}
IOHIDDeviceOpen(inDevice, kIOHIDOptionsTypeNone);
IOHIDDeviceScheduleWithRunLoop(inDevice, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
IOHIDDeviceRegisterInputValueCallback(inDevice, hid_device_input_callback, (void*)pad_index);
IOHIDDeviceRegisterRemovalCallback(inDevice, hid_device_removed, (void*)pad_index);
osx_pad_set_leds(inDevice, pad_index);
}
static CFMutableDictionaryRef build_matching_dictionary(uint32_t page, uint32_t use)
@ -163,8 +191,7 @@ void osx_pad_init()
IOHIDManagerSetDeviceMatchingMultiple(g_hid_manager, matcher);
CFRelease(matcher);
IOHIDManagerRegisterDeviceMatchingCallback(g_hid_manager, hid_device_attached, 0);
IOHIDManagerRegisterDeviceRemovalCallback(g_hid_manager, hid_device_removed, 0);
IOHIDManagerRegisterDeviceMatchingCallback(g_hid_manager, hid_manager_device_attached, 0);
IOHIDManagerScheduleWithRunLoop(g_hid_manager, CFRunLoopGetMain(), kCFRunLoopCommonModes);
IOHIDManagerOpen(g_hid_manager, kIOHIDOptionsTypeNone);