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RetroArch/input/drivers_hid/iohidmanager_hid.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2013-2014 - Jason Fetters
* Copyright (C) 2011-2017 - Daniel De Matteis
* Courtesy Contributor - Olivier Parra
*
* 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 <stdlib.h>
#include <string/stdstring.h>
#include <IOKit/hid/IOHIDManager.h>
#include <IOKit/hid/IOHIDKeys.h>
#include <retro_miscellaneous.h>
#include "../input_defines.h"
#include "../input_driver.h"
#include "../connect/joypad_connection.h"
#include "../../tasks/tasks_internal.h"
#include "../../verbosity.h"
typedef struct apple_input_rec
{
IOHIDElementCookie cookie;
uint32_t id;
struct apple_input_rec *next;
} apple_input_rec_t;
typedef struct apple_hid
{
IOHIDManagerRef ptr;
joypad_connection_t *slots;
uint32_t buttons[MAX_USERS];
int16_t axes[MAX_USERS][11];
int8_t hats[MAX_USERS][2]; /* MacOS only supports 1 hat AFAICT */
} iohidmanager_hid_t;
struct iohidmanager_hid_adapter
{
uint32_t slot;
IOHIDDeviceRef handle;
char name[PATH_MAX_LENGTH];
apple_input_rec_t *axes;
apple_input_rec_t *hats;
apple_input_rec_t *buttons;
uint8_t data[2048];
#if !(defined(__ppc__) || defined(__ppc64__))
uint32_t uniqueId;
#endif
};
CFComparisonResult iohidmanager_sort_elements(const void *val1, const void *val2, void *context)
{
uint32_t page1 = (uint32_t)IOHIDElementGetUsagePage((IOHIDElementRef)val1);
uint32_t page2 = (uint32_t)IOHIDElementGetUsagePage((IOHIDElementRef)val2);
uint32_t use1 = (uint32_t)IOHIDElementGetUsage((IOHIDElementRef)val1);
uint32_t use2 = (uint32_t)IOHIDElementGetUsage((IOHIDElementRef)val2);
uint32_t cookie1 = (uint32_t)IOHIDElementGetCookie((IOHIDElementRef)val1);
uint32_t cookie2 = (uint32_t)IOHIDElementGetCookie((IOHIDElementRef)val2);
if (page1 != page2)
return (CFComparisonResult)(page1 > page2);
if (use1 != use2)
return (CFComparisonResult)(use1 > use2);
return (CFComparisonResult)(cookie1 > cookie2);
}
static bool iohidmanager_check_for_id(apple_input_rec_t *rec, uint32_t id)
{
while (rec)
{
if (rec->id == id)
return true;
rec = rec->next;
}
return false;
}
static void iohidmanager_append_record(apple_input_rec_t *rec, apple_input_rec_t *b)
{
apple_input_rec_t *tmp = rec;
while (tmp->next)
tmp = tmp->next;
tmp->next = b;
}
/* Insert a new detected button into a button ordered list.
* Button list example with Nimbus Controller:
* +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
* "id" list member | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 144 | 145 | 146 | 147 | 547 |
* Final Button ID | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
* +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
* Ranges |< X/Y/A/B/L1/L2/R1/R2 buttons >|< D-PAD >|MENU |
* In that way, HID button IDs allocation:
* - becomes robust and determinist
* - remains compatible with previous algorithm (i.e. btn->id = (uint32_t)(use - 1)) and so
* compatible with previous autoconfig files.
*/
static void iohidmanager_append_record_ordered(apple_input_rec_t **p_rec, apple_input_rec_t *b)
{
apple_input_rec_t *tmp = *p_rec;
while (tmp && (tmp->id <= b->id))
{
p_rec = &tmp->next;
tmp = tmp->next;
}
b->next = tmp;
*p_rec = b;
}
static bool iohidmanager_hid_joypad_query(void *data, unsigned pad)
{
return pad < MAX_USERS;
}
static const char *iohidmanager_hid_joypad_name(void *data, unsigned pad)
{
/* TODO/FIXME - implement properly */
if (pad >= MAX_USERS)
return NULL;
return NULL;
}
static void iohidmanager_hid_joypad_get_buttons(void *data,
unsigned port, input_bits_t *state)
{
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)data;
if (hid)
return pad_connection_get_buttons(&hid->slots[port], port, state);
else
BIT256_CLEAR_ALL_PTR(state);
}
static int16_t iohidmanager_hid_joypad_button(void *data,
unsigned port, uint16_t joykey)
{
unsigned hat_dir;
input_bits_t buttons;
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)data;
if (port >= DEFAULT_MAX_PADS)
return 0;
iohidmanager_hid_joypad_get_buttons(data, port, &buttons);
hat_dir = GET_HAT_DIR(joykey);
/* Check hat. */
if (hat_dir)
{
unsigned h = GET_HAT(joykey);
if (h >= 1)
return 0;
switch (hat_dir)
{
case HAT_LEFT_MASK:
return (hid->hats[port][0] < 0);
case HAT_RIGHT_MASK:
return (hid->hats[port][0] > 0);
case HAT_UP_MASK:
return (hid->hats[port][1] < 0);
case HAT_DOWN_MASK:
return (hid->hats[port][1] > 0);
default:
break;
}
/* hat requested and no hat button down */
}
else if (joykey < 32)
return ((BIT256_GET(buttons, joykey) != 0)
|| ((hid->buttons[port] & (1 << joykey)) != 0));
return 0;
}
static int16_t iohidmanager_hid_joypad_axis(void *data,
unsigned port, uint32_t joyaxis)
{
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)data;
if (AXIS_NEG_GET(joyaxis) < 11)
{
int16_t val = hid->axes[port][AXIS_NEG_GET(joyaxis)]
+ pad_connection_get_axis(&hid->slots[port],
port, AXIS_NEG_GET(joyaxis));
if (val < 0)
return val;
}
else if (AXIS_POS_GET(joyaxis) < 11)
{
int16_t val = hid->axes[port][AXIS_POS_GET(joyaxis)]
+ pad_connection_get_axis(&hid->slots[port],
port, AXIS_POS_GET(joyaxis));
if (val > 0)
return val;
}
return 0;
}
static int16_t iohidmanager_hid_joypad_state(
void *data,
rarch_joypad_info_t *joypad_info,
const void *binds_data,
unsigned port)
{
unsigned i;
int16_t ret = 0;
const struct retro_keybind *binds = (const struct retro_keybind*)binds_data;
uint16_t port_idx = joypad_info->joy_idx;
for (i = 0; i < RARCH_FIRST_CUSTOM_BIND; i++)
{
/* Auto-binds are per joypad, not per user. */
const uint64_t joykey = (binds[i].joykey != NO_BTN)
? binds[i].joykey : joypad_info->auto_binds[i].joykey;
const uint32_t joyaxis = (binds[i].joyaxis != AXIS_NONE)
? binds[i].joyaxis : joypad_info->auto_binds[i].joyaxis;
if (
(uint16_t)joykey != NO_BTN
&& iohidmanager_hid_joypad_button(data, port_idx, (uint16_t)joykey))
ret |= ( 1 << i);
else if (joyaxis != AXIS_NONE &&
((float)abs(iohidmanager_hid_joypad_axis(data, port_idx, joyaxis))
/ 0x8000) > joypad_info->axis_threshold)
ret |= (1 << i);
}
return ret;
}
static bool iohidmanager_hid_joypad_rumble(void *data, unsigned pad,
enum retro_rumble_effect effect, uint16_t strength)
{
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)data;
if (!hid)
return false;
return pad_connection_rumble(&hid->slots[pad], pad, effect, strength);
}
static void iohidmanager_hid_device_send_control(void *data,
uint8_t* data_buf, size_t size)
{
struct iohidmanager_hid_adapter *adapter =
(struct iohidmanager_hid_adapter*)data;
if (adapter)
IOHIDDeviceSetReport(adapter->handle,
kIOHIDReportTypeOutput, 0x01, data_buf + 1, size - 1);
}
static void iohidmanager_hid_device_report(void *data,
IOReturn result, void *sender,
IOHIDReportType type, uint32_t reportID, uint8_t *report,
CFIndex reportLength)
{
struct iohidmanager_hid_adapter *adapter =
(struct iohidmanager_hid_adapter*)data;
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)hid_driver_get_data();
if (hid && adapter)
pad_connection_packet(&hid->slots[adapter->slot], adapter->slot,
adapter->data, (uint32_t)(reportLength + 1));
}
/* NOTE: I pieced this together through trial and error,
* any corrections are welcome. */
static void iohidmanager_hid_device_input_callback(void *data, IOReturn result,
void* sender, IOHIDValueRef value)
{
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)hid_driver_get_data();
struct iohidmanager_hid_adapter *adapter = (struct iohidmanager_hid_adapter*)data;
IOHIDElementRef element = IOHIDValueGetElement(value);
uint32_t type = (uint32_t)IOHIDElementGetType(element);
uint32_t page = (uint32_t)IOHIDElementGetUsagePage(element);
uint32_t use = (uint32_t)IOHIDElementGetUsage(element);
uint32_t cookie = (uint32_t)IOHIDElementGetCookie(element);
apple_input_rec_t *tmp = NULL;
if (type != kIOHIDElementTypeInput_Misc)
if (type != kIOHIDElementTypeInput_Button)
if (type != kIOHIDElementTypeInput_Axis)
return;
/* Joystick handler.
* TODO: Can GamePad work the same? */
int pushed_button = 0;
switch (page)
{
case kHIDPage_GenericDesktop:
switch (type)
{
case kIOHIDElementTypeInput_Misc:
switch (use)
{
case kHIDUsage_GD_Hatswitch:
{
tmp = adapter->hats;
while (tmp && tmp->cookie != (IOHIDElementCookie)cookie)
tmp = tmp->next;
if (tmp && tmp->cookie == (IOHIDElementCookie)cookie)
{
CFIndex min = IOHIDElementGetLogicalMin(element);
CFIndex range = IOHIDElementGetLogicalMax(element) - min;
CFIndex val = IOHIDValueGetIntegerValue(value);
if (range == 3)
val *= 2;
if(min == 1)
val--;
switch(val)
{
case 0:
/* pos = up */
hid->hats[adapter->slot][0] = 0;
hid->hats[adapter->slot][1] = -1;
break;
case 1:
/* pos = up+right */
hid->hats[adapter->slot][0] = 1;
hid->hats[adapter->slot][1] = -1;
break;
case 2:
/* pos = right */
hid->hats[adapter->slot][0] = 1;
hid->hats[adapter->slot][1] = 0;
break;
case 3:
/* pos = down+right */
hid->hats[adapter->slot][0] = 1;
hid->hats[adapter->slot][1] = 1;
break;
case 4:
/* pos = down */
hid->hats[adapter->slot][0] = 0;
hid->hats[adapter->slot][1] = 1;
break;
case 5:
/* pos = down+left */
hid->hats[adapter->slot][0] = -1;
hid->hats[adapter->slot][1] = 1;
break;
case 6:
/* pos = left */
hid->hats[adapter->slot][0] = -1;
hid->hats[adapter->slot][1] = 0;
break;
case 7:
/* pos = up_left */
hid->hats[adapter->slot][0] = -1;
hid->hats[adapter->slot][1] = -1;
break;
default:
/* pos = centered */
hid->hats[adapter->slot][0] = 0;
hid->hats[adapter->slot][1] = 0;
break;
}
}
}
break;
default:
tmp = adapter->axes;
while (tmp && tmp->cookie != (IOHIDElementCookie)cookie)
tmp = tmp->next;
if (tmp)
{
if (tmp->cookie == (IOHIDElementCookie)cookie)
{
CFIndex min = IOHIDElementGetPhysicalMin(element);
CFIndex state = IOHIDValueGetIntegerValue(value) - min;
CFIndex max = IOHIDElementGetPhysicalMax(element) - min;
float val = (float)state / (float)max;
hid->axes[adapter->slot][tmp->id] =
((val * 2.0f) - 1.0f) * 32767.0f;
}
}
else
pushed_button = 1;
break;
}
break;
}
break;
case kHIDPage_Consumer:
case kHIDPage_Button:
switch (type)
{
case kIOHIDElementTypeInput_Misc:
case kIOHIDElementTypeInput_Button:
pushed_button = 1;
break;
}
break;
case kHIDPage_Simulation:
switch (type)
{
case kIOHIDElementTypeInput_Misc:
switch (use)
{
default:
tmp = adapter->axes;
while (tmp && tmp->cookie != (IOHIDElementCookie)cookie)
{
tmp = tmp->next;
}
if (tmp)
{
if (tmp->cookie == (IOHIDElementCookie)cookie)
{
CFIndex min = IOHIDElementGetPhysicalMin(element);
CFIndex state = IOHIDValueGetIntegerValue(value) - min;
CFIndex max = IOHIDElementGetPhysicalMax(element) - min;
float val = (float)state / (float)max;
hid->axes[adapter->slot][tmp->id] =
((val * 2.0f) - 1.0f) * 32767.0f;
}
}
else
pushed_button = 1;
break;
}
break;
}
break;
}
if (pushed_button)
{
uint8_t bit = 0;
tmp = adapter->buttons;
while (tmp && tmp->cookie != (IOHIDElementCookie)cookie)
{
bit++;
tmp = tmp->next;
}
if (tmp && tmp->cookie == (IOHIDElementCookie)cookie)
{
CFIndex state = IOHIDValueGetIntegerValue(value);
if (state)
BIT64_SET(hid->buttons[adapter->slot], bit);
else
BIT64_CLEAR(hid->buttons[adapter->slot], bit);
}
}
}
static void iohidmanager_hid_device_remove(void *data,
IOReturn result, void* sender)
{
struct iohidmanager_hid_adapter *adapter =
(struct iohidmanager_hid_adapter*)data;
iohidmanager_hid_t *hid = (iohidmanager_hid_t*)
hid_driver_get_data();
if (hid && adapter && (adapter->slot < MAX_USERS))
{
input_autoconfigure_disconnect(adapter->slot, adapter->name);
hid->buttons[adapter->slot] = 0;
memset(hid->axes[adapter->slot], 0, sizeof(hid->axes));
pad_connection_pad_deinit(&hid->slots[adapter->slot], adapter->slot);
}
if (adapter)
{
apple_input_rec_t* tmp = NULL;
while (adapter->hats != NULL)
{
tmp = adapter->hats;
adapter->hats = adapter->hats->next;
free(tmp);
}
while (adapter->axes != NULL)
{
tmp = adapter->axes;
adapter->axes = adapter->axes->next;
free(tmp);
}
while (adapter->buttons != NULL)
{
tmp = adapter->buttons;
adapter->buttons = adapter->buttons->next;
free(tmp);
}
free(adapter);
}
}
static int32_t iohidmanager_hid_device_get_int_property(
IOHIDDeviceRef device, CFStringRef key)
{
CFNumberRef ref = (CFNumberRef)IOHIDDeviceGetProperty(device, key);
if (ref && (CFGetTypeID(ref) == CFNumberGetTypeID()))
{
int32_t value = 0;
CFNumberGetValue((CFNumberRef)ref, kCFNumberIntType, &value);
return value;
}
return 0;
}
static uint16_t iohidmanager_hid_device_get_vendor_id(IOHIDDeviceRef device)
{
return iohidmanager_hid_device_get_int_property(device,
CFSTR(kIOHIDVendorIDKey));
}
static uint16_t iohidmanager_hid_device_get_product_id(IOHIDDeviceRef device)
{
return iohidmanager_hid_device_get_int_property(device,
CFSTR(kIOHIDProductIDKey));
}
static uint32_t iohidmanager_hid_device_get_location_id(IOHIDDeviceRef device)
{
return iohidmanager_hid_device_get_int_property(device,
CFSTR(kIOHIDLocationIDKey));
}
#if !(defined(__ppc__) || defined(__ppc64__))
static uint32_t iohidmanager_hid_device_get_unique_id(IOHIDDeviceRef device)
{
/* osx seems to assign an unique id to each device when they are plugged in
* the id change if device is unplugged/plugged, but it's unique amongst the
* other device plugged */
return iohidmanager_hid_device_get_int_property(device,CFSTR(kIOHIDUniqueIDKey));
}
#endif
static void iohidmanager_hid_device_get_product_string(
IOHIDDeviceRef device, char *buf, size_t len)
{
CFStringRef ref = (CFStringRef)
IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
if (ref)
CFStringGetCString(ref, buf, len, kCFStringEncodingUTF8);
}
static void iohidmanager_hid_device_add_autodetect(unsigned idx,
const char *device_name, const char *driver_name,
uint16_t dev_vid, uint16_t dev_pid)
{
input_autoconfigure_connect(
device_name,
NULL,
"hid",
idx,
dev_vid,
dev_pid
);
RARCH_LOG("Port %d: %s.\n", idx, device_name);
}
#if defined(__ppc__) || defined(__ppc64__)
static void iohidmanager_hid_device_add(IOHIDDeviceRef device,
iohidmanager_hid_t* hid)
#else
static void iohidmanager_hid_device_add_device(
IOHIDDeviceRef device, iohidmanager_hid_t* hid)
#endif
{
int i;
/* get device unique id */
#if !(defined(__ppc__) || defined(__ppc64__))
uint32_t deviceUniqueId = iohidmanager_hid_device_get_unique_id(device);
#endif
static const uint32_t axis_use_ids[11] =
{
kHIDUsage_GD_X,
kHIDUsage_GD_Y,
kHIDUsage_GD_Rx,
kHIDUsage_GD_Ry,
kHIDUsage_GD_Z,
kHIDUsage_GD_Rz,
kHIDUsage_Sim_Rudder,
kHIDUsage_Sim_Throttle,
kHIDUsage_Sim_Steering,
kHIDUsage_Sim_Accelerator,
kHIDUsage_Sim_Brake
};
#if !(defined(__ppc__) || defined(__ppc64__))
/* check if pad was already registered previously (by deterministic method)
* if so do not re-add the pad */
for (i=0; i<MAX_USERS; i++)
{
struct iohidmanager_hid_adapter *a = (struct iohidmanager_hid_adapter*)hid->slots[i].data;
if (!a)
continue;
if (a->uniqueId == deviceUniqueId)
return;
}
#endif
IOReturn ret;
uint16_t dev_vid, dev_pid;
CFArrayRef elements_raw;
int count;
CFMutableArrayRef elements;
CFRange range;
bool found_axis[11] =
{ false, false, false, false, false, false, false, false, false, false, false };
apple_input_rec_t *tmp = NULL;
apple_input_rec_t *tmpButtons = NULL;
apple_input_rec_t *tmpAxes = NULL;
struct iohidmanager_hid_adapter *adapter = (struct iohidmanager_hid_adapter*)
calloc(1, sizeof(*adapter));
if (!adapter)
return;
if (!hid)
goto error;
adapter->handle = device;
ret = IOHIDDeviceOpen(device, kIOHIDOptionsTypeNone);
if (ret != kIOReturnSuccess)
goto error;
/* Move the device's run loop to this thread. */
IOHIDDeviceScheduleWithRunLoop(device, CFRunLoopGetCurrent(),
kCFRunLoopCommonModes);
IOHIDDeviceRegisterRemovalCallback(device,
iohidmanager_hid_device_remove, adapter);
#ifndef IOS
iohidmanager_hid_device_get_product_string(device, adapter->name,
sizeof(adapter->name));
#endif
dev_vid = iohidmanager_hid_device_get_vendor_id (device);
dev_pid = iohidmanager_hid_device_get_product_id (device);
#if !(defined(__ppc__) || defined(__ppc64__))
adapter->uniqueId = deviceUniqueId;
#endif
adapter->slot = pad_connection_pad_init(hid->slots,
adapter->name, dev_vid, dev_pid, adapter,
&iohidmanager_hid);
if (adapter->slot == -1)
goto error;
if (pad_connection_has_interface(hid->slots, adapter->slot))
IOHIDDeviceRegisterInputReportCallback(device,
adapter->data + 1, sizeof(adapter->data) - 1,
iohidmanager_hid_device_report, adapter);
else
IOHIDDeviceRegisterInputValueCallback(device,
iohidmanager_hid_device_input_callback, adapter);
if (string_is_empty(adapter->name))
goto error;
/* scan for buttons, axis, hats */
elements_raw = IOHIDDeviceCopyMatchingElements(device, NULL, kIOHIDOptionsTypeNone);
count = (int)CFArrayGetCount(elements_raw);
elements = CFArrayCreateMutableCopy(
kCFAllocatorDefault,(CFIndex)count,elements_raw);
range = CFRangeMake(0,count);
CFArraySortValues(elements,
range, iohidmanager_sort_elements, NULL);
for (i = 0; i < count; i++)
{
IOHIDElementType type;
uint32_t page, use, cookie;
int detected_button = 0;
IOHIDElementRef element = (IOHIDElementRef)CFArrayGetValueAtIndex(elements, i);
if (!element)
continue;
type = IOHIDElementGetType(element);
page = (uint32_t)IOHIDElementGetUsagePage(element);
use = (uint32_t)IOHIDElementGetUsage(element);
cookie = (uint32_t)IOHIDElementGetCookie(element);
switch (page)
{
case kHIDPage_GenericDesktop:
switch (type)
{
case kIOHIDElementTypeCollection:
case kIOHIDElementTypeInput_ScanCodes:
case kIOHIDElementTypeFeature:
case kIOHIDElementTypeInput_Button:
case kIOHIDElementTypeOutput:
case kIOHIDElementTypeInput_Axis:
/* TODO/FIXME */
break;
case kIOHIDElementTypeInput_Misc:
switch (use)
{
case kHIDUsage_GD_Hatswitch:
{
/* as far as I can tell, OSX only reports one Hat */
apple_input_rec_t *hat = (apple_input_rec_t *)malloc(sizeof(apple_input_rec_t));
hat->id = 0;
hat->cookie = (IOHIDElementCookie)cookie;
hat->next = NULL;
adapter->hats = hat;
}
break;
default:
{
uint32_t i = 0;
while (i < 11 && axis_use_ids[i] != use)
i++;
if (i < 11)
{
apple_input_rec_t *axis = (apple_input_rec_t *)malloc(sizeof(apple_input_rec_t));
axis->id = i;
axis->cookie = (IOHIDElementCookie)cookie;
axis->next = NULL;
if (iohidmanager_check_for_id(adapter->axes,i))
{
/* axis ID already exists, save to tmp for appending later */
if (tmpAxes)
iohidmanager_append_record(tmpAxes, axis);
else
tmpAxes = axis;
}
else
{
found_axis[axis->id] = true;
if (adapter->axes)
iohidmanager_append_record(adapter->axes, axis);
else
adapter->axes = axis;
}
}
else
detected_button = 1;
}
break;
}
break;
}
break;
case kHIDPage_Consumer:
case kHIDPage_Button:
switch (type)
{
case kIOHIDElementTypeCollection:
case kIOHIDElementTypeFeature:
case kIOHIDElementTypeInput_ScanCodes:
case kIOHIDElementTypeInput_Axis:
case kIOHIDElementTypeOutput:
/* TODO/FIXME */
break;
case kIOHIDElementTypeInput_Misc:
case kIOHIDElementTypeInput_Button:
detected_button = 1;
break;
}
break;
case kHIDPage_Simulation:
switch (use)
{
default:
{
uint32_t i = 0;
while (i < 11 && axis_use_ids[i] != use)
i++;
if (i < 11)
{
apple_input_rec_t *axis = (apple_input_rec_t *)malloc(sizeof(apple_input_rec_t));
axis->id = i;
axis->cookie = (IOHIDElementCookie)cookie;
axis->next = NULL;
if (iohidmanager_check_for_id(adapter->axes,i))
{
/* axis ID already exists, save to tmp for appending later */
if (tmpAxes)
iohidmanager_append_record(tmpAxes, axis);
else
tmpAxes = axis;
}
else
{
found_axis[axis->id] = true;
if (adapter->axes)
iohidmanager_append_record(adapter->axes, axis);
else
adapter->axes = axis;
}
}
else
detected_button = 1;
}
break;
}
break;
}
if (detected_button)
{
apple_input_rec_t *btn = (apple_input_rec_t *)malloc(sizeof(apple_input_rec_t));
btn->id = (uint32_t)use;
btn->cookie = (IOHIDElementCookie)cookie;
btn->next = NULL;
if (iohidmanager_check_for_id(adapter->buttons,btn->id))
{
if (tmpButtons)
iohidmanager_append_record_ordered(&tmpButtons, btn);
else
tmpButtons = btn;
}
else
{
if (adapter->buttons)
iohidmanager_append_record_ordered(&adapter->buttons, btn);
else
adapter->buttons = btn;
}
}
}
/* take care of buttons/axes with duplicate 'use' values */
for (i = 0; i < 11; i++)
{
if (!found_axis[i] && tmpAxes)
{
apple_input_rec_t *next = tmpAxes->next;
tmpAxes->id = i;
tmpAxes->next = NULL;
iohidmanager_append_record(adapter->axes, tmpAxes);
tmpAxes = next;
}
}
tmp = adapter->buttons;
if (tmp)
{
while (tmp->next)
tmp = tmp->next;
}
while (tmpButtons)
{
apple_input_rec_t *next = tmpButtons->next;
tmpButtons->id = tmp->id;
tmpButtons->next = NULL;
tmp->next = tmpButtons;
tmp = tmp->next;
tmpButtons = next;
}
iohidmanager_hid_device_add_autodetect(adapter->slot,
adapter->name, iohidmanager_hid.ident, dev_vid, dev_pid);
return;
error:
{
apple_input_rec_t *tmp = NULL;
while (adapter->hats != NULL)
{
tmp = adapter->hats;
adapter->hats = adapter->hats->next;
free(tmp);
}
while (adapter->axes != NULL)
{
tmp = adapter->axes;
adapter->axes = adapter->axes->next;
free(tmp);
}
while (adapter->buttons != NULL)
{
tmp = adapter->buttons;
adapter->buttons = adapter->buttons->next;
free(tmp);
}
while (tmpAxes != NULL)
{
tmp = tmpAxes;
tmpAxes = tmpAxes->next;
free(tmp);
}
while (tmpButtons != NULL)
{
tmp = tmpButtons;
tmpButtons = tmpButtons->next;
free(tmp);
}
free(adapter);
}
}
#if !(defined(__ppc__) || defined(__ppc64__))
static void iohidmanager_hid_device_add(void *data, IOReturn result,
void* sender, IOHIDDeviceRef device)
{
iohidmanager_hid_t *hid = (iohidmanager_hid_t*) hid_driver_get_data();
iohidmanager_hid_device_add_device(device, hid);
}
#endif
static void iohidmanager_hid_append_matching_dictionary(
CFMutableArrayRef array,
uint32_t page, uint32_t use)
{
CFMutableDictionaryRef matcher = CFDictionaryCreateMutable(
kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFNumberRef pagen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &page);
CFNumberRef usen = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &use);
CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsagePageKey), pagen);
CFDictionarySetValue(matcher, CFSTR(kIOHIDDeviceUsageKey), usen);
CFArrayAppendValue(array, matcher);
CFRelease(pagen);
CFRelease(usen);
CFRelease(matcher);
}
static int iohidmanager_hid_manager_init(iohidmanager_hid_t *hid)
{
if (!hid)
return -1;
if (hid->ptr) /* already initialized. */
return 0;
hid->ptr = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
if (!hid->ptr)
return -1;
IOHIDManagerSetDeviceMatching(hid->ptr, NULL);
IOHIDManagerScheduleWithRunLoop(hid->ptr, CFRunLoopGetCurrent(),
kCFRunLoopDefaultMode);
return 0;
}
static int iohidmanager_hid_manager_free(iohidmanager_hid_t *hid)
{
if (!hid || !hid->ptr)
return -1;
IOHIDManagerUnscheduleFromRunLoop(hid->ptr,
CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
IOHIDManagerClose(hid->ptr, kIOHIDOptionsTypeNone);
CFRelease(hid->ptr);
hid->ptr = NULL;
return 0;
}
static int iohidmanager_hid_manager_set_device_matching(
iohidmanager_hid_t *hid)
{
/* deterministically add all device currently plugged when lanching retroarch
* order by location id which seems to correspond to usb port number */
CFSetRef set = IOHIDManagerCopyDevices(hid->ptr);
CFIndex num_devices = CFSetGetCount(set);
IOHIDDeviceRef *device_array = (IOHIDDeviceRef*)calloc(num_devices, sizeof(IOHIDDeviceRef));
CFSetGetValues(set, (const void **) device_array);
/* re order device by location id */
typedef struct hid_list
{
IOHIDDeviceRef device;
uint32_t lid;
struct hid_list *next;
} hid_list_t;
hid_list_t* devList = NULL;
for (long i=0; i<num_devices;i++)
{
IOHIDDeviceRef dev = device_array[i];
/* filter gamepad/joystick devices */
if ( IOHIDDeviceConformsTo(dev, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick)
|| IOHIDDeviceConformsTo(dev, kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad)
)
{
if (!devList)
{
devList = (hid_list_t *)malloc(sizeof(hid_list_t));
devList->device = dev;
devList->lid = iohidmanager_hid_device_get_location_id(dev);
devList->next = NULL;
}
else
{
hid_list_t * devnew = (hid_list_t *)malloc(sizeof(hid_list_t));
devnew->device = dev;
devnew->lid = iohidmanager_hid_device_get_location_id(dev);
devnew->next = NULL;
hid_list_t * ptr = devList;
if (devnew->lid < ptr->lid)
{
devnew->next = ptr;
devList = devnew;
}
else
{
while ( ( ptr->lid < devnew->lid ) && (ptr->next != NULL) )
ptr = ptr->next;
devnew->next = ptr->next;
ptr->next = devnew;
}
}
}
}
/* register devices */
hid_list_t * ptr = devList;
while (ptr != NULL)
{
#if defined(__ppc__) || defined(__ppc64__)
iohidmanager_hid_device_add(ptr->device, hid);
#else
iohidmanager_hid_device_add_device(ptr->device, hid);
#endif
//printf("%d\n",ptr->lid);
ptr = ptr->next;
free(devList);
devList = ptr;
}
free(device_array);
#if !(defined(__ppc__) || defined(__ppc64__))
/* register call back to dynamically add device plugged when retroarch is
* running
* those will be added after the one plugged when retroarch was launched,
* and by order they are plugged in (so not deterministic) */
CFMutableArrayRef matcher = CFArrayCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeArrayCallBacks);
if (!matcher)
return -1;
iohidmanager_hid_append_matching_dictionary(matcher,
kHIDPage_GenericDesktop,
kHIDUsage_GD_Joystick);
iohidmanager_hid_append_matching_dictionary(matcher,
kHIDPage_GenericDesktop,
kHIDUsage_GD_GamePad);
IOHIDManagerSetDeviceMatchingMultiple(hid->ptr, matcher);
IOHIDManagerRegisterDeviceMatchingCallback(hid->ptr,
iohidmanager_hid_device_add, 0);
CFRelease(matcher);
#endif
return 0;
}
static void *iohidmanager_hid_init(void)
{
iohidmanager_hid_t *hid_apple = (iohidmanager_hid_t*)
calloc(1, sizeof(*hid_apple));
if (!hid_apple)
return NULL;
hid_apple->slots = pad_connection_init(MAX_USERS);
if (!hid_apple->slots)
goto error;
if (iohidmanager_hid_manager_init(hid_apple) == -1)
goto error;
if (iohidmanager_hid_manager_set_device_matching(hid_apple) == -1)
goto error;
return hid_apple;
error:
if (hid_apple->slots)
free(hid_apple->slots);
hid_apple->slots = NULL;
if (hid_apple)
free(hid_apple);
return NULL;
}
static void iohidmanager_hid_free(const void *data)
{
iohidmanager_hid_t *hid_apple = (iohidmanager_hid_t*)data;
if (!hid_apple || !hid_apple->ptr)
return;
pad_connection_destroy(hid_apple->slots);
iohidmanager_hid_manager_free(hid_apple);
if (hid_apple)
free(hid_apple);
}
static void iohidmanager_hid_poll(void *data)
{
(void)data;
}
hid_driver_t iohidmanager_hid = {
iohidmanager_hid_init,
iohidmanager_hid_joypad_query,
iohidmanager_hid_free,
iohidmanager_hid_joypad_button,
iohidmanager_hid_joypad_state,
iohidmanager_hid_joypad_get_buttons,
iohidmanager_hid_joypad_axis,
iohidmanager_hid_poll,
iohidmanager_hid_joypad_rumble,
iohidmanager_hid_joypad_name,
"iohidmanager",
iohidmanager_hid_device_send_control,
};
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