RetroArch/input/apple_joypad.c
twinaphex 234edda575 (Apple) Properly implement joypad - now executes init - and
also executes osx_pad_init and osx_pad_quit from joypad driver now
instead of outside code having to call it externally
2014-06-10 03:32:03 +02:00

388 lines
11 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2013-2014 - Jason Fetters
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "apple_input.h"
#include "input_common.h"
#include "../general.h"
#ifdef IOS
#include "../apple/iOS/bluetooth/btdynamic.c"
#include "../apple/iOS/bluetooth/btpad.c"
#include "../apple/iOS/bluetooth/btpad_queue.c"
#elif defined(OSX)
#include <IOKit/hid/IOHIDManager.h>
#endif
#ifdef OSX
struct apple_pad_connection
{
uint32_t slot;
IOHIDDeviceRef device;
uint8_t data[2048];
};
static IOHIDManagerRef g_hid_manager;
void apple_pad_send_control(struct apple_pad_connection* connection, uint8_t* data, size_t size)
{
IOHIDDeviceSetReport(connection->device, kIOHIDReportTypeOutput, 0x01, data + 1, size - 1);
}
// NOTE: I pieced this together through trial and error, any corrections are welcome
static void hid_device_input_callback(void* context, IOReturn result, void* sender, IOHIDValueRef value)
{
IOHIDElementRef element;
uint32_t type, page, use;
struct apple_pad_connection* connection = (struct apple_pad_connection*)context;
element = IOHIDValueGetElement(value);
type = IOHIDElementGetType(element);
page = IOHIDElementGetUsagePage(element);
use = IOHIDElementGetUsage(element);
// Joystick handler: TODO: Can GamePad work the same?
if (type == kIOHIDElementTypeInput_Button && page == kHIDPage_Button)
{
CFIndex state = IOHIDValueGetIntegerValue(value);
if (state)
g_current_input_data.pad_buttons[connection->slot] |= (1 << (use - 1));
else
g_current_input_data.pad_buttons[connection->slot] &= ~(1 << (use - 1));
}
else if (type == kIOHIDElementTypeInput_Misc && page == kHIDPage_GenericDesktop)
{
static const uint32_t axis_use_ids[4] = { 48, 49, 50, 53 };
int i;
for (i = 0; i < 4; i ++)
{
if (use == axis_use_ids[i])
{
CFIndex min, max, state;
float val;
min = IOHIDElementGetPhysicalMin(element);
max = IOHIDElementGetPhysicalMax(element) - min;
state = IOHIDValueGetIntegerValue(value) - min;
val = (float)state / (float)max;
g_current_input_data.pad_axis[connection->slot][i] = ((val * 2.0f) - 1.0f) * 32767.0f;
}
}
}
}
static void hid_device_removed(void* context, IOReturn result, void* sender)
{
struct apple_pad_connection* connection = (struct apple_pad_connection*)context;
if (connection && connection->slot < MAX_PLAYERS)
{
g_current_input_data.pad_buttons[connection->slot] = 0;
memset(g_current_input_data.pad_axis[connection->slot], 0, sizeof(g_current_input_data.pad_axis));
apple_joypad_disconnect(connection->slot);
free(connection);
}
IOHIDDeviceClose(sender, kIOHIDOptionsTypeNone);
}
static void hid_device_report(void* context, IOReturn result, void *sender, IOHIDReportType type, uint32_t reportID, uint8_t *report, CFIndex reportLength)
{
struct apple_pad_connection* connection = (struct apple_pad_connection*)context;
apple_joypad_packet(connection->slot, connection->data, reportLength + 1);
}
static void hid_manager_device_attached(void* context, IOReturn result, void* sender, IOHIDDeviceRef device)
{
char device_name[1024];
CFStringRef device_name_ref;
struct apple_pad_connection* connection = (struct apple_pad_connection*)calloc(1, sizeof(*connection));
connection->device = device;
connection->slot = MAX_PLAYERS;
IOHIDDeviceOpen(device, kIOHIDOptionsTypeNone);
IOHIDDeviceScheduleWithRunLoop(device, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
IOHIDDeviceRegisterRemovalCallback(device, hid_device_removed, connection);
device_name_ref = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
CFStringGetCString(device_name_ref, device_name, sizeof(device_name), kCFStringEncodingUTF8);
connection->slot = apple_joypad_connect(device_name, connection);
if (apple_joypad_has_interface(connection->slot))
IOHIDDeviceRegisterInputReportCallback(device, connection->data + 1, sizeof(connection->data) - 1, hid_device_report, connection);
else
IOHIDDeviceRegisterInputValueCallback(device, hid_device_input_callback, connection);
}
static void append_matching_dictionary(CFMutableArrayRef array, uint32_t page, uint32_t use)
{
CFNumberRef pagen, usen;
CFMutableDictionaryRef matcher;
matcher = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
pagen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &page);
CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsagePageKey), pagen);
CFRelease(pagen);
usen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &use);
CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsageKey), usen);
CFRelease(usen);
CFArrayAppendValue(array, matcher);
CFRelease(matcher);
}
#endif
#include "../apple/common/hidpad/wiimote.c"
#include "../apple/common/hidpad/apple_ps3_pad.c"
#include "../apple/common/hidpad/apple_wii_pad.c"
typedef struct
{
bool used;
struct apple_pad_interface* iface;
void* data;
bool is_gcapi;
} joypad_slot_t;
static joypad_slot_t slots[MAX_PLAYERS];
static int32_t find_empty_slot(void)
{
unsigned i;
for (i = 0; i < MAX_PLAYERS; i++)
{
if (!slots[i].used)
{
memset(&slots[i], 0, sizeof(slots[0]));
return i;
}
}
return -1;
}
int32_t apple_joypad_connect(const char* name, struct apple_pad_connection* connection)
{
int32_t slot;
slot = find_empty_slot();
if (slot >= 0 && slot < MAX_PLAYERS)
{
unsigned i;
joypad_slot_t* s = (joypad_slot_t*)&slots[slot];
s->used = true;
static const struct
{
const char* name;
struct apple_pad_interface* iface;
} pad_map[] =
{
{ "Nintendo RVL-CNT-01", &apple_pad_wii },
{ "PLAYSTATION(R)3 Controller", &apple_pad_ps3 },
{ 0, 0}
};
for (i = 0; name && pad_map[i].name; i++)
if (strstr(name, pad_map[i].name))
{
s->iface = pad_map[i].iface;
s->data = s->iface->connect(connection, slot);
}
}
return slot;
}
int32_t apple_joypad_connect_gcapi(void)
{
int32_t slot;
slot = find_empty_slot();
if (slot >= 0 && slot < MAX_PLAYERS)
{
joypad_slot_t *s = (joypad_slot_t*)&slots[slot];
s->used = true;
s->is_gcapi = true;
}
return slot;
}
void apple_joypad_disconnect(uint32_t slot)
{
if (slot < MAX_PLAYERS && slots[slot].used)
{
joypad_slot_t* s = (joypad_slot_t*)&slots[slot];
if (s->iface && s->data && s->iface->disconnect)
s->iface->disconnect(s->data);
memset(s, 0, sizeof(joypad_slot_t));
}
}
void apple_joypad_packet(uint32_t slot, uint8_t* data, uint32_t length)
{
if (slot < MAX_PLAYERS && slots[slot].used)
{
joypad_slot_t *s = (joypad_slot_t*)&slots[slot];
if (s->iface && s->data && s->iface->packet_handler)
s->iface->packet_handler(s->data, data, length);
}
}
bool apple_joypad_has_interface(uint32_t slot)
{
if (slot < MAX_PLAYERS && slots[slot].used)
return slots[slot].iface ? true : false;
return false;
}
// RetroArch joypad driver:
static bool apple_joypad_init(void)
{
#ifdef OSX
CFMutableArrayRef matcher;
if (!g_hid_manager)
{
g_hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
matcher = CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks);
append_matching_dictionary(matcher, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick);
append_matching_dictionary(matcher, kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad);
IOHIDManagerSetDeviceMatchingMultiple(g_hid_manager, matcher);
CFRelease(matcher);
IOHIDManagerRegisterDeviceMatchingCallback(g_hid_manager, hid_manager_device_attached, 0);
IOHIDManagerScheduleWithRunLoop(g_hid_manager, CFRunLoopGetMain(), kCFRunLoopCommonModes);
IOHIDManagerOpen(g_hid_manager, kIOHIDOptionsTypeNone);
}
#endif
return true;
}
static bool apple_joypad_query_pad(unsigned pad)
{
return pad < MAX_PLAYERS;
}
static void apple_joypad_destroy(void)
{
unsigned i;
for (i = 0; i < MAX_PLAYERS; i ++)
{
if (slots[i].used && slots[i].iface && slots[i].iface->set_rumble)
{
slots[i].iface->set_rumble(slots[i].data, RETRO_RUMBLE_STRONG, 0);
slots[i].iface->set_rumble(slots[i].data, RETRO_RUMBLE_WEAK, 0);
}
}
#ifdef OSX
if (g_hid_manager)
{
IOHIDManagerClose(g_hid_manager, kIOHIDOptionsTypeNone);
IOHIDManagerUnscheduleFromRunLoop(g_hid_manager, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
CFRelease(g_hid_manager);
}
g_hid_manager = NULL;
#endif
}
static bool apple_joypad_button(unsigned port, uint16_t joykey)
{
if (joykey == NO_BTN)
return false;
// Check hat.
if (GET_HAT_DIR(joykey))
return false;
else // Check the button
return (port < MAX_PLAYERS && joykey < 32) ? (g_current_input_data.pad_buttons[port] & (1 << joykey)) != 0 : false;
}
static int16_t apple_joypad_axis(unsigned port, uint32_t joyaxis)
{
int16_t val;
if (joyaxis == AXIS_NONE)
return 0;
val = 0;
if (AXIS_NEG_GET(joyaxis) < 4)
{
val = g_current_input_data.pad_axis[port][AXIS_NEG_GET(joyaxis)];
val = (val < 0) ? val : 0;
}
else if(AXIS_POS_GET(joyaxis) < 4)
{
val = g_current_input_data.pad_axis[port][AXIS_POS_GET(joyaxis)];
val = (val > 0) ? val : 0;
}
return val;
}
static void apple_joypad_poll(void)
{
}
static bool apple_joypad_rumble(unsigned pad, enum retro_rumble_effect effect, uint16_t strength)
{
if (pad < MAX_PLAYERS && slots[pad].used && slots[pad].iface
&& slots[pad].iface->set_rumble)
{
slots[pad].iface->set_rumble(slots[pad].data, effect, strength);
return true;
}
return false;
}
static const char *apple_joypad_name(unsigned joypad)
{
(void)joypad;
return NULL;
}
const rarch_joypad_driver_t apple_joypad = {
apple_joypad_init,
apple_joypad_query_pad,
apple_joypad_destroy,
apple_joypad_button,
apple_joypad_axis,
apple_joypad_poll,
apple_joypad_rumble,
apple_joypad_name,
"apple"
};