mirror of
https://github.com/libretro/RetroArch.git
synced 2024-10-08 15:13:24 +00:00
356 lines
11 KiB
C
356 lines
11 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2013-2014 - Jason Fetters
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* Copyright (C) 2011-2014 - Daniel De Matteis
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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 <IOKit/hid/IOHIDKeys.h>
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#include "apple_input.h"
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#include "input_common.h"
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#include "../general.h"
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struct pad_connection
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{
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int v_id;
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int p_id;
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uint32_t slot;
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IOHIDDeviceRef device_handle;
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uint8_t data[2048];
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};
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static joypad_connection_t *slots;
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static IOHIDManagerRef g_hid_manager;
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static void hid_pad_connection_send_control(void *data, uint8_t* data_buf, size_t size)
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{
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struct pad_connection* connection = (struct pad_connection*)data;
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if (connection)
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IOHIDDeviceSetReport(connection->device_handle,
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kIOHIDReportTypeOutput, 0x01, data_buf + 1, size - 1);
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}
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/* NOTE: I pieced this together through trial and error,
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* any corrections are welcome. */
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static void hid_device_input_callback(void* context, IOReturn result,
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void* sender, IOHIDValueRef value)
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{
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apple_input_data_t *apple = (apple_input_data_t*)driver.input_data;
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struct pad_connection* connection = (struct pad_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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/* Joystick handler.
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* TODO: Can GamePad work the same? */
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if (
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(type == kIOHIDElementTypeInput_Misc) ||
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(type == kIOHIDElementTypeInput_Button) ||
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(type == kIOHIDElementTypeInput_Axis)
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)
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{
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switch (page)
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{
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case kHIDPage_GenericDesktop:
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switch (type)
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{
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case kIOHIDElementTypeInput_Misc:
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switch (use)
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{
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case kHIDUsage_GD_Hatswitch:
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break;
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default:
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{
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static const uint32_t axis_use_ids[4] = { 48, 49, 50, 53 };
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int i;
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for (i = 0; i < 4; 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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if (use != axis_use_ids[i])
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continue;
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apple->axes[connection->slot][i] =
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((val * 2.0f) - 1.0f) * 32767.0f;
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}
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}
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break;
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}
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break;
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}
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break;
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case kHIDPage_Button:
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switch (type)
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{
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case kIOHIDElementTypeInput_Button:
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{
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CFIndex state = IOHIDValueGetIntegerValue(value);
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unsigned id = use - 1;
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if (state)
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BIT32_SET(apple->buttons[connection->slot], id);
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else
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BIT32_CLEAR(apple->buttons[connection->slot], id);
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}
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break;
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}
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break;
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}
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}
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}
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static void remove_device(void* context, IOReturn result, void* sender)
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{
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apple_input_data_t *apple = (apple_input_data_t*)driver.input_data;
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struct pad_connection* connection = (struct pad_connection*)context;
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if (connection && connection->slot < MAX_PLAYERS)
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{
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char msg[512];
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snprintf(msg, sizeof(msg), "Joypad #%u (%s) disconnected.",
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connection->slot, "N/A");
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msg_queue_push(g_extern.msg_queue, msg, 0, 60);
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RARCH_LOG("[apple_input]: %s\n", msg);
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apple->buttons[connection->slot] = 0;
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memset(apple->axes[connection->slot], 0, sizeof(apple->axes));
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pad_connection_disconnect(&slots[connection->slot], connection->slot);
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free(connection);
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}
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IOHIDDeviceClose(sender, kIOHIDOptionsTypeSeizeDevice);
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}
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static void hid_device_report(void* context, IOReturn result, void *sender,
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IOHIDReportType type, uint32_t reportID, uint8_t *report,
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CFIndex reportLength)
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{
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struct pad_connection* connection = (struct pad_connection*)context;
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if (connection)
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pad_connection_packet(&slots[connection->slot], connection->slot,
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connection->data, reportLength + 1);
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}
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static void add_device(void* context, IOReturn result,
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void* sender, IOHIDDeviceRef device)
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{
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char device_name[PATH_MAX];
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CFStringRef device_name_ref;
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CFNumberRef vendorID, productID;
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struct pad_connection* connection = (struct pad_connection*)
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calloc(1, sizeof(*connection));
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connection->device_handle = device;
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connection->slot = MAX_PLAYERS;
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IOHIDDeviceOpen(device, kIOHIDOptionsTypeNone);
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/* Move the device's run loop to this thread. */
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IOHIDDeviceScheduleWithRunLoop(device, CFRunLoopGetCurrent(),
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kCFRunLoopCommonModes);
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IOHIDDeviceRegisterRemovalCallback(device, remove_device, connection);
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#ifndef IOS
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device_name_ref = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
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CFStringGetCString(device_name_ref, device_name,
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sizeof(device_name), kCFStringEncodingUTF8);
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#endif
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vendorID = (CFNumberRef)IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey));
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CFNumberGetValue(vendorID, kCFNumberIntType, &connection->v_id);
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productID = (CFNumberRef)IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductIDKey));
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CFNumberGetValue(productID, kCFNumberIntType, &connection->p_id);
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connection->slot = pad_connection_connect(slots, device_name,
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connection, &hid_pad_connection_send_control);
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if (pad_connection_has_interface(slots, connection->slot))
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IOHIDDeviceRegisterInputReportCallback(device,
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connection->data + 1, sizeof(connection->data) - 1,
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hid_device_report, connection);
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else
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IOHIDDeviceRegisterInputValueCallback(device,
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hid_device_input_callback, connection);
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if (device_name[0] != '\0')
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{
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strlcpy(g_settings.input.device_names[connection->slot],
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device_name, sizeof(g_settings.input.device_names));
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input_config_autoconfigure_joypad(connection->slot,
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device_name, connection->v_id, connection->p_id, apple_hid_joypad.ident);
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RARCH_LOG("Port %d: %s.\n", connection->slot, device_name);
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}
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}
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static void append_matching_dictionary(CFMutableArrayRef array,
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uint32_t page, uint32_t use)
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{
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CFNumberRef pagen, usen;
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CFMutableDictionaryRef matcher;
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matcher = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
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&kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
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pagen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &page);
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CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsagePageKey), pagen);
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CFRelease(pagen);
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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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static bool apple_joypad_init(void)
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{
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CFMutableArrayRef matcher;
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if (!(g_hid_manager = IOHIDManagerCreate(
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kCFAllocatorDefault, kIOHIDOptionsTypeNone)))
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return false;
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matcher = CFArrayCreateMutable(kCFAllocatorDefault, 0,
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&kCFTypeArrayCallBacks);
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append_matching_dictionary(matcher, kHIDPage_GenericDesktop,
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kHIDUsage_GD_Joystick);
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append_matching_dictionary(matcher, kHIDPage_GenericDesktop,
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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,
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add_device, 0);
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IOHIDManagerScheduleWithRunLoop(g_hid_manager, CFRunLoopGetMain(),
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kCFRunLoopCommonModes);
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IOHIDManagerOpen(g_hid_manager, kIOHIDOptionsTypeNone);
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slots = (joypad_connection_t*)pad_connection_init(MAX_PLAYERS);
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return true;
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}
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static bool apple_joypad_query_pad(unsigned pad)
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{
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return pad < MAX_PLAYERS;
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}
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static void apple_joypad_hid_destroy(void)
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{
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if (!g_hid_manager)
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return;
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IOHIDManagerClose(g_hid_manager, kIOHIDOptionsTypeNone);
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IOHIDManagerUnscheduleFromRunLoop(g_hid_manager,
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CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
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CFRelease(g_hid_manager);
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g_hid_manager = NULL;
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}
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static void apple_joypad_destroy(void)
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{
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pad_connection_destroy(slots);
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apple_joypad_hid_destroy();
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}
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static bool apple_joypad_button(unsigned port, uint16_t joykey)
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{
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apple_input_data_t *apple = (apple_input_data_t*)driver.input_data;
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uint32_t buttons = pad_connection_get_buttons(&slots[port], port);
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if (!apple || joykey == NO_BTN)
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return false;
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/* Check hat. */
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if (GET_HAT_DIR(joykey))
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return false;
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/* Check the button. */
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if ((port < MAX_PLAYERS) && (joykey < 32))
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return ((apple->buttons[port] & (1 << joykey)) != 0) ||
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((buttons & (1 << joykey)) != 0);
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return false;
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}
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static int16_t apple_joypad_axis(unsigned port, uint32_t joyaxis)
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{
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apple_input_data_t *apple = (apple_input_data_t*)driver.input_data;
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int16_t val = 0;
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if (!apple || joyaxis == AXIS_NONE)
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return 0;
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if (AXIS_NEG_GET(joyaxis) < 4)
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{
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val = apple->axes[port][AXIS_NEG_GET(joyaxis)];
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val += pad_connection_get_axis(&slots[port], port, AXIS_NEG_GET(joyaxis));
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val = (val < 0) ? val : 0;
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}
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else if(AXIS_POS_GET(joyaxis) < 4)
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{
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val = apple->axes[port][AXIS_POS_GET(joyaxis)];
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val += pad_connection_get_axis(&slots[port], port, AXIS_POS_GET(joyaxis));
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val = (val > 0) ? val : 0;
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}
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return val;
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}
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static void apple_joypad_poll(void)
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{
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}
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static bool apple_joypad_rumble(unsigned pad,
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enum retro_rumble_effect effect, uint16_t strength)
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{
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return pad_connection_rumble(&slots[pad], pad, effect, strength);
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}
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static const char *apple_joypad_name(unsigned pad)
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{
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/* TODO/FIXME - implement properly */
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if (pad >= MAX_PLAYERS)
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return NULL;
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return NULL;
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}
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rarch_joypad_driver_t apple_hid_joypad = {
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apple_joypad_init,
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apple_joypad_query_pad,
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apple_joypad_destroy,
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apple_joypad_button,
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apple_joypad_axis,
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apple_joypad_poll,
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apple_joypad_rumble,
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apple_joypad_name,
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"apple_hid"
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};
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