2013-12-07 13:13:40 +00:00
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/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
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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 "input_common.h"
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#include "../general.h"
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#include <unistd.h>
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#include <stdint.h>
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#include <string.h>
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#include <limits.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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2013-12-07 16:12:25 +00:00
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#include <sys/poll.h>
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2013-12-07 15:11:51 +00:00
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#include <sys/epoll.h>
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2013-12-07 13:13:40 +00:00
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#include <fcntl.h>
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#include <libudev.h>
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#include <linux/types.h>
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#include <linux/input.h>
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2013-12-07 15:11:51 +00:00
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typedef struct udev_input udev_input_t;
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2013-12-07 21:09:08 +00:00
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struct input_device;
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typedef void (*device_handle_cb)(udev_input_t *udev,
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const struct input_event *event, struct input_device *dev);
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2013-12-07 15:11:51 +00:00
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struct input_device
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{
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int fd;
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dev_t dev;
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2013-12-07 21:09:08 +00:00
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device_handle_cb handle_cb;
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2013-12-07 16:12:25 +00:00
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char devnode[PATH_MAX];
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2013-12-07 21:09:08 +00:00
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union
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{
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// keyboard
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// mouse
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struct
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{
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float x, y;
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2013-12-07 21:16:19 +00:00
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float mod_x, mod_y;
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2013-12-07 21:09:08 +00:00
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struct input_absinfo info_x;
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struct input_absinfo info_y;
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bool touch;
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} touchpad;
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} state;
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2013-12-07 15:11:51 +00:00
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};
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struct udev_input
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2013-12-07 13:13:40 +00:00
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{
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2013-12-07 16:12:25 +00:00
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struct udev *udev;
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struct udev_monitor *monitor;
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2013-12-07 13:13:40 +00:00
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const rarch_joypad_driver_t *joypad;
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uint8_t key_state[(KEY_MAX + 7) / 8];
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2013-12-07 15:11:51 +00:00
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int epfd;
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struct input_device **devices;
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unsigned num_devices;
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2013-12-07 13:13:40 +00:00
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int16_t mouse_x;
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int16_t mouse_y;
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bool mouse_l, mouse_r, mouse_m;
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2013-12-07 15:11:51 +00:00
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};
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2013-12-07 13:13:40 +00:00
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static inline bool get_bit(const uint8_t *buf, unsigned bit)
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{
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return buf[bit >> 3] & (1 << (bit & 7));
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}
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static inline void clear_bit(uint8_t *buf, unsigned bit)
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{
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buf[bit >> 3] &= ~(1 << (bit & 7));
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}
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static inline void set_bit(uint8_t *buf, unsigned bit)
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{
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buf[bit >> 3] |= 1 << (bit & 7);
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}
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2013-12-07 21:09:08 +00:00
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static void udev_handle_keyboard(udev_input_t *udev, const struct input_event *event, struct input_device *dev)
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2013-12-07 13:13:40 +00:00
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{
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2013-12-07 21:09:08 +00:00
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switch (event->type)
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2013-12-07 13:13:40 +00:00
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{
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2013-12-07 21:09:08 +00:00
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case EV_KEY:
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if (event->value)
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set_bit(udev->key_state, event->code);
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else
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clear_bit(udev->key_state, event->code);
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break;
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default:
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break;
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}
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}
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static void udev_handle_touchpad(udev_input_t *udev, const struct input_event *event, struct input_device *dev)
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{
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switch (event->type)
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{
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case EV_ABS:
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switch (event->code)
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{
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case ABS_X:
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{
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int x = event->value - dev->state.touchpad.info_x.minimum;
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int range = dev->state.touchpad.info_x.maximum - dev->state.touchpad.info_x.minimum;
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float x_norm = (float)x / range;
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2013-12-07 21:16:19 +00:00
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float rel_x = x_norm - dev->state.touchpad.x;
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2013-12-07 21:09:08 +00:00
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2013-12-07 21:16:19 +00:00
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if (dev->state.touchpad.touch)
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udev->mouse_x += (int16_t)roundf(dev->state.touchpad.mod_x * rel_x);
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2013-12-07 21:09:08 +00:00
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2013-12-07 21:16:19 +00:00
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dev->state.touchpad.x = x_norm;
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// Some factor, not sure what's good to do here ...
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dev->state.touchpad.mod_x = 500.0f;
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2013-12-07 21:09:08 +00:00
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break;
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}
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case ABS_Y:
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{
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int y = event->value - dev->state.touchpad.info_y.minimum;
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int range = dev->state.touchpad.info_y.maximum - dev->state.touchpad.info_y.minimum;
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float y_norm = (float)y / range;
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2013-12-07 21:16:19 +00:00
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float rel_y = y_norm - dev->state.touchpad.y;
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2013-12-07 21:09:08 +00:00
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2013-12-07 21:16:19 +00:00
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if (dev->state.touchpad.touch)
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udev->mouse_y += (int16_t)roundf(dev->state.touchpad.mod_y * rel_y);
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2013-12-07 21:09:08 +00:00
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2013-12-07 21:16:19 +00:00
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dev->state.touchpad.y = y_norm;
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// Some factor, not sure what's good to do here ...
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dev->state.touchpad.mod_y = 500.0f;
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2013-12-07 21:09:08 +00:00
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break;
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}
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default:
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break;
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}
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break;
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case EV_KEY:
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switch (event->code)
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2013-12-07 13:13:40 +00:00
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{
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2013-12-07 21:09:08 +00:00
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case BTN_TOUCH:
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dev->state.touchpad.touch = event->value;
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2013-12-07 21:16:19 +00:00
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dev->state.touchpad.mod_x = 0.0f; // First ABS event is not a relative one.
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dev->state.touchpad.mod_y = 0.0f;
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2013-12-07 15:11:51 +00:00
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break;
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default:
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break;
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2013-12-07 13:13:40 +00:00
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}
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}
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2013-12-07 15:11:51 +00:00
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}
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2013-12-07 13:13:40 +00:00
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2013-12-07 21:09:08 +00:00
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static void udev_handle_mouse(udev_input_t *udev, const struct input_event *event, struct input_device *dev)
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2013-12-07 15:11:51 +00:00
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{
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2013-12-07 21:09:08 +00:00
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switch (event->type)
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2013-12-07 13:13:40 +00:00
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{
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2013-12-07 21:09:08 +00:00
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case EV_KEY:
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switch (event->code)
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2013-12-07 13:13:40 +00:00
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{
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2013-12-07 21:09:08 +00:00
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case BTN_LEFT:
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udev->mouse_l = event->value;
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break;
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2013-12-07 15:11:51 +00:00
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2013-12-07 21:09:08 +00:00
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case BTN_RIGHT:
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udev->mouse_r = event->value;
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break;
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2013-12-07 15:11:51 +00:00
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2013-12-07 21:09:08 +00:00
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case BTN_MIDDLE:
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udev->mouse_m = event->value;
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2013-12-07 15:11:51 +00:00
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break;
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2013-12-07 21:09:08 +00:00
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default:
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break;
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}
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break;
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2013-12-07 15:11:51 +00:00
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2013-12-07 21:09:08 +00:00
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case EV_REL:
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switch (event->code)
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{
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case REL_X:
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udev->mouse_x += event->value;
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break;
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2013-12-07 15:11:51 +00:00
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2013-12-07 21:09:08 +00:00
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case REL_Y:
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udev->mouse_y += event->value;
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2013-12-07 15:11:51 +00:00
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break;
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default:
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break;
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2013-12-07 13:13:40 +00:00
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}
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2013-12-07 21:09:08 +00:00
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break;
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default:
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break;
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2013-12-07 13:13:40 +00:00
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}
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2013-12-07 15:11:51 +00:00
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}
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2013-12-07 16:12:25 +00:00
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static bool hotplug_available(udev_input_t *udev)
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{
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if (!udev->monitor)
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return false;
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struct pollfd fds = {0};
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fds.fd = udev_monitor_get_fd(udev->monitor);
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fds.events = POLLIN;
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return (poll(&fds, 1, 0) == 1) && (fds.revents & POLLIN);
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}
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2013-12-07 21:09:08 +00:00
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static bool add_device(udev_input_t *udev, const char *devnode, device_handle_cb cb)
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2013-12-07 16:12:25 +00:00
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{
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struct stat st;
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if (stat(devnode, &st) < 0)
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return false;
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int fd = open(devnode, O_RDONLY | O_NONBLOCK);
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if (fd < 0)
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return false;
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struct input_device *device = (struct input_device*)calloc(1, sizeof(*device));
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if (!device)
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{
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close(fd);
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return false;
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}
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device->fd = fd;
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device->dev = st.st_dev;
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2013-12-07 21:09:08 +00:00
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device->handle_cb = cb;
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2013-12-07 16:12:25 +00:00
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strlcpy(device->devnode, devnode, sizeof(device->devnode));
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2013-12-07 21:09:08 +00:00
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// Touchpads report in absolute coords.
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if (cb == udev_handle_touchpad &&
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(ioctl(fd, EVIOCGABS(ABS_X), &device->state.touchpad.info_x) < 0 ||
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ioctl(fd, EVIOCGABS(ABS_Y), &device->state.touchpad.info_y) < 0))
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{
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free(device);
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close(fd);
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return false;
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}
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2013-12-07 16:12:25 +00:00
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struct input_device **tmp = (struct input_device**)realloc(udev->devices,
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(udev->num_devices + 1) * sizeof(*udev->devices));
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if (!tmp)
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{
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close(fd);
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free(device);
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return false;
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}
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tmp[udev->num_devices++] = device;
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udev->devices = tmp;
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struct epoll_event event = {0};
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event.events = EPOLLIN;
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event.data.ptr = device;
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if (epoll_ctl(udev->epfd, EPOLL_CTL_ADD, fd, &event) < 0) // Shouldn't happen, but just check it.
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RARCH_ERR("Failed to add FD (%d) to epoll list (%s).\n", fd, strerror(errno));
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return true;
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}
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static void remove_device(udev_input_t *udev, const char *devnode)
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{
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unsigned i;
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for (i = 0; i < udev->num_devices; i++)
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{
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if (!strcmp(devnode, udev->devices[i]->devnode))
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{
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close(udev->devices[i]->fd);
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free(udev->devices[i]);
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memmove(udev->devices + i, udev->devices + i + 1,
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(udev->num_devices - (i + 1)) * sizeof(*udev->devices));
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udev->num_devices--;
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}
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}
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}
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static void handle_hotplug(udev_input_t *udev)
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{
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struct udev_device *dev = udev_monitor_receive_device(udev->monitor);
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if (!dev)
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return;
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const char *val_keyboard = udev_device_get_property_value(dev, "ID_INPUT_KEYBOARD");
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const char *val_mouse = udev_device_get_property_value(dev, "ID_INPUT_MOUSE");
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2013-12-07 21:09:08 +00:00
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const char *val_touchpad = udev_device_get_property_value(dev, "ID_INPUT_TOUCHPAD");
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2013-12-07 16:12:25 +00:00
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const char *action = udev_device_get_action(dev);
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const char *devnode = udev_device_get_devnode(dev);
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bool is_keyboard = val_keyboard && !strcmp(val_keyboard, "1") && devnode;
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bool is_mouse = val_mouse && !strcmp(val_mouse, "1") && devnode;
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2013-12-07 21:09:08 +00:00
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bool is_touchpad = val_touchpad && !strcmp(val_touchpad, "1") && devnode;
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2013-12-07 16:12:25 +00:00
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2013-12-07 21:09:08 +00:00
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if (!is_keyboard && !is_mouse && !is_touchpad)
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2013-12-07 16:12:25 +00:00
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goto end;
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2013-12-07 21:09:08 +00:00
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device_handle_cb cb = NULL;
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const char *devtype = NULL;
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if (is_keyboard)
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{
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cb = udev_handle_keyboard;
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devtype = "keyboard";
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}
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else if (is_touchpad)
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{
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cb = udev_handle_touchpad;
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devtype = "touchpad";
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}
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else if (is_mouse)
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{
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|
|
cb = udev_handle_mouse;
|
|
|
|
devtype = "mouse";
|
|
|
|
}
|
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
if (!strcmp(action, "add"))
|
|
|
|
{
|
2013-12-07 21:09:08 +00:00
|
|
|
RARCH_LOG("[udev]: Hotplug add %s: %s.\n", devtype, devnode);
|
2013-12-07 16:12:25 +00:00
|
|
|
add_device(udev, devnode, cb);
|
|
|
|
}
|
|
|
|
else if (!strcmp(action, "remove"))
|
|
|
|
{
|
2013-12-07 21:09:08 +00:00
|
|
|
RARCH_LOG("[udev]: Hotplug remove %s: %s.\n", devtype, devnode);
|
2013-12-07 16:12:25 +00:00
|
|
|
remove_device(udev, devnode);
|
|
|
|
}
|
|
|
|
|
|
|
|
end:
|
|
|
|
udev_device_unref(dev);
|
|
|
|
}
|
|
|
|
|
2013-12-07 15:11:51 +00:00
|
|
|
static void udev_input_poll(void *data)
|
|
|
|
{
|
|
|
|
udev_input_t *udev = (udev_input_t*)data;
|
|
|
|
udev->mouse_x = udev->mouse_y = 0;
|
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
while (hotplug_available(udev))
|
|
|
|
handle_hotplug(udev);
|
|
|
|
|
2013-12-07 15:11:51 +00:00
|
|
|
int i;
|
|
|
|
struct epoll_event events[32];
|
|
|
|
int ret = epoll_wait(udev->epfd, events, ARRAY_SIZE(events), 0);
|
|
|
|
|
|
|
|
for (i = 0; i < ret; i++)
|
|
|
|
{
|
|
|
|
if (events[i].events & EPOLLIN)
|
|
|
|
{
|
|
|
|
struct input_device *device = (struct input_device*)events[i].data.ptr;
|
2013-12-07 21:09:08 +00:00
|
|
|
struct input_event events[32];
|
|
|
|
int j, len;
|
|
|
|
|
|
|
|
while ((len = read(device->fd, events, sizeof(events))) > 0)
|
|
|
|
{
|
|
|
|
len /= sizeof(*events);
|
|
|
|
for (j = 0; j < len; j++)
|
|
|
|
device->handle_cb(udev, &events[j], device);
|
|
|
|
}
|
2013-12-07 15:11:51 +00:00
|
|
|
}
|
|
|
|
}
|
2013-12-07 13:13:40 +00:00
|
|
|
|
|
|
|
input_joypad_poll(udev->joypad);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int16_t udev_mouse_state(udev_input_t *udev, unsigned id)
|
|
|
|
{
|
|
|
|
switch (id)
|
|
|
|
{
|
|
|
|
case RETRO_DEVICE_ID_MOUSE_X:
|
|
|
|
return udev->mouse_x;
|
|
|
|
case RETRO_DEVICE_ID_MOUSE_Y:
|
|
|
|
return udev->mouse_y;
|
|
|
|
case RETRO_DEVICE_ID_MOUSE_LEFT:
|
|
|
|
return udev->mouse_l;
|
|
|
|
case RETRO_DEVICE_ID_MOUSE_RIGHT:
|
|
|
|
return udev->mouse_r;
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int16_t udev_lightgun_state(udev_input_t *udev, unsigned id)
|
|
|
|
{
|
|
|
|
switch (id)
|
|
|
|
{
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_X:
|
|
|
|
return udev->mouse_x;
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_Y:
|
|
|
|
return udev->mouse_y;
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
|
|
|
|
return udev->mouse_l;
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_CURSOR:
|
|
|
|
return udev->mouse_m;
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_TURBO:
|
|
|
|
return udev->mouse_r;
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_START:
|
|
|
|
return udev->mouse_m && udev->mouse_r;
|
|
|
|
case RETRO_DEVICE_ID_LIGHTGUN_PAUSE:
|
|
|
|
return udev->mouse_m && udev->mouse_l;
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool udev_is_pressed(udev_input_t *udev, const struct retro_keybind *binds, unsigned id)
|
|
|
|
{
|
|
|
|
if (id < RARCH_BIND_LIST_END)
|
|
|
|
{
|
|
|
|
const struct retro_keybind *bind = &binds[id];
|
|
|
|
return bind->valid && get_bit(udev->key_state, input_translate_rk_to_keysym(binds[id].key));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int16_t udev_analog_pressed(udev_input_t *udev,
|
|
|
|
const struct retro_keybind *binds, unsigned index, unsigned id)
|
|
|
|
{
|
|
|
|
unsigned id_minus = 0;
|
|
|
|
unsigned id_plus = 0;
|
|
|
|
input_conv_analog_id_to_bind_id(index, id, &id_minus, &id_plus);
|
|
|
|
|
|
|
|
int16_t pressed_minus = udev_is_pressed(udev,
|
|
|
|
binds, id_minus) ? -0x7fff : 0;
|
|
|
|
int16_t pressed_plus = udev_is_pressed(udev,
|
|
|
|
binds, id_plus) ? 0x7fff : 0;
|
|
|
|
return pressed_plus + pressed_minus;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int16_t udev_input_state(void *data, const struct retro_keybind **binds,
|
|
|
|
unsigned port, unsigned device, unsigned index, unsigned id)
|
|
|
|
{
|
|
|
|
udev_input_t *udev = (udev_input_t*)data;
|
|
|
|
int16_t ret;
|
|
|
|
|
|
|
|
switch (device)
|
|
|
|
{
|
|
|
|
case RETRO_DEVICE_JOYPAD:
|
|
|
|
return udev_is_pressed(udev, binds[port], id) ||
|
|
|
|
input_joypad_pressed(udev->joypad, port, binds[port], id);
|
|
|
|
|
|
|
|
case RETRO_DEVICE_ANALOG:
|
|
|
|
ret = udev_analog_pressed(udev, binds[port], index, id);
|
|
|
|
if (!ret)
|
|
|
|
ret = input_joypad_analog(udev->joypad, port, index, id, binds[port]);
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
case RETRO_DEVICE_KEYBOARD:
|
|
|
|
return id < RETROK_LAST && get_bit(udev->key_state, input_translate_rk_to_keysym(id));
|
|
|
|
|
|
|
|
case RETRO_DEVICE_MOUSE:
|
|
|
|
return udev_mouse_state(udev, id);
|
|
|
|
|
|
|
|
case RETRO_DEVICE_LIGHTGUN:
|
|
|
|
return udev_lightgun_state(udev, id);
|
|
|
|
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool udev_bind_button_pressed(void *data, int key)
|
|
|
|
{
|
|
|
|
udev_input_t *udev = (udev_input_t*)data;
|
|
|
|
return udev_is_pressed(udev, g_settings.input.binds[0], key) ||
|
|
|
|
input_joypad_pressed(udev->joypad, 0, g_settings.input.binds[0], key);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void udev_input_free(void *data)
|
|
|
|
{
|
2013-12-07 15:11:51 +00:00
|
|
|
if (!data)
|
|
|
|
return;
|
|
|
|
|
|
|
|
unsigned i;
|
2013-12-07 13:13:40 +00:00
|
|
|
udev_input_t *udev = (udev_input_t*)data;
|
|
|
|
if (udev->joypad)
|
|
|
|
udev->joypad->destroy();
|
|
|
|
|
2013-12-07 15:11:51 +00:00
|
|
|
if (udev->epfd >= 0)
|
|
|
|
close(udev->epfd);
|
|
|
|
|
|
|
|
for (i = 0; i < udev->num_devices; i++)
|
|
|
|
{
|
|
|
|
close(udev->devices[i]->fd);
|
|
|
|
free(udev->devices[i]);
|
|
|
|
}
|
|
|
|
free(udev->devices);
|
2013-12-07 13:13:40 +00:00
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
if (udev->monitor)
|
|
|
|
udev_monitor_unref(udev->monitor);
|
|
|
|
if (udev->udev)
|
|
|
|
udev_unref(udev->udev);
|
2013-12-07 15:11:51 +00:00
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
free(udev);
|
2013-12-07 15:11:51 +00:00
|
|
|
}
|
|
|
|
|
2013-12-07 21:09:08 +00:00
|
|
|
static bool open_devices(udev_input_t *udev, const char *type, device_handle_cb cb)
|
2013-12-07 13:13:40 +00:00
|
|
|
{
|
2013-12-07 16:12:25 +00:00
|
|
|
struct udev_list_entry *devs;
|
|
|
|
struct udev_list_entry *item;
|
2013-12-07 13:13:40 +00:00
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
struct udev_enumerate *enumerate = udev_enumerate_new(udev->udev);
|
2013-12-07 13:13:40 +00:00
|
|
|
if (!enumerate)
|
2013-12-07 15:11:51 +00:00
|
|
|
return false;
|
2013-12-07 13:13:40 +00:00
|
|
|
|
|
|
|
udev_enumerate_add_match_property(enumerate, type, "1");
|
|
|
|
udev_enumerate_scan_devices(enumerate);
|
|
|
|
devs = udev_enumerate_get_list_entry(enumerate);
|
|
|
|
for (item = devs; item; item = udev_list_entry_get_next(item))
|
|
|
|
{
|
|
|
|
const char *name = udev_list_entry_get_name(item);
|
2013-12-07 16:12:25 +00:00
|
|
|
struct udev_device *dev = udev_device_new_from_syspath(udev->udev, name);
|
2013-12-07 13:13:40 +00:00
|
|
|
const char *devnode = udev_device_get_devnode(dev);
|
|
|
|
|
|
|
|
int fd = devnode ? open(devnode, O_RDONLY | O_NONBLOCK) : -1;
|
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
if (devnode)
|
2013-12-07 13:13:40 +00:00
|
|
|
{
|
2013-12-07 15:11:51 +00:00
|
|
|
RARCH_LOG("[udev] Adding device %s as type %s.\n", devnode, type);
|
2013-12-07 16:12:25 +00:00
|
|
|
if (!add_device(udev, devnode, cb))
|
|
|
|
RARCH_ERR("[udev] Failed to open device: %s (%s).\n", devnode, strerror(errno));
|
2013-12-07 13:13:40 +00:00
|
|
|
}
|
2013-12-07 15:11:51 +00:00
|
|
|
|
|
|
|
udev_device_unref(dev);
|
2013-12-07 13:13:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
udev_enumerate_unref(enumerate);
|
2013-12-07 15:11:51 +00:00
|
|
|
return true;
|
2013-12-07 13:13:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void *udev_input_init(void)
|
|
|
|
{
|
|
|
|
udev_input_t *udev = (udev_input_t*)calloc(1, sizeof(*udev));
|
|
|
|
if (!udev)
|
|
|
|
return NULL;
|
|
|
|
|
2013-12-07 16:12:25 +00:00
|
|
|
udev->udev = udev_new();
|
|
|
|
if (!udev->udev)
|
|
|
|
{
|
|
|
|
RARCH_ERR("Failed to create udev handle.\n");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
udev->monitor = udev_monitor_new_from_netlink(udev->udev, "udev");
|
|
|
|
if (udev->monitor)
|
|
|
|
{
|
|
|
|
udev_monitor_filter_add_match_subsystem_devtype(udev->monitor, "input", NULL);
|
|
|
|
udev_monitor_enable_receiving(udev->monitor);
|
|
|
|
}
|
|
|
|
|
2013-12-07 15:11:51 +00:00
|
|
|
udev->epfd = epoll_create(32);
|
2013-12-07 16:12:25 +00:00
|
|
|
if (udev->epfd < 0)
|
|
|
|
{
|
|
|
|
RARCH_ERR("Failed to create epoll FD.\n");
|
|
|
|
goto error;
|
|
|
|
}
|
2013-12-07 13:13:40 +00:00
|
|
|
|
2013-12-07 21:09:08 +00:00
|
|
|
if (!open_devices(udev, "ID_INPUT_KEYBOARD", udev_handle_keyboard))
|
2013-12-07 15:11:51 +00:00
|
|
|
{
|
|
|
|
RARCH_ERR("Failed to open keyboard.\n");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2013-12-07 21:09:08 +00:00
|
|
|
if (!open_devices(udev, "ID_INPUT_MOUSE", udev_handle_mouse))
|
2013-12-07 15:11:51 +00:00
|
|
|
{
|
|
|
|
RARCH_ERR("Failed to open mouse.\n");
|
|
|
|
goto error;
|
|
|
|
}
|
2013-12-07 13:13:40 +00:00
|
|
|
|
2013-12-07 21:09:08 +00:00
|
|
|
if (!open_devices(udev, "ID_INPUT_TOUCHPAD", udev_handle_touchpad))
|
|
|
|
{
|
|
|
|
RARCH_ERR("Failed to open touchpads.\n");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If using KMS and we forgot this, we could lock ourselves out completely.
|
|
|
|
// Include this as a safety guard.
|
|
|
|
if (!udev->num_devices)
|
|
|
|
{
|
|
|
|
RARCH_ERR("[udev]: Couldn't open any devices. Are permissions set correctly for /dev/input/event*?\n");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2013-12-07 13:13:40 +00:00
|
|
|
udev->joypad = input_joypad_init_driver(g_settings.input.joypad_driver);
|
|
|
|
input_init_keyboard_lut(rarch_key_map_linux);
|
|
|
|
return udev;
|
2013-12-07 15:11:51 +00:00
|
|
|
|
|
|
|
error:
|
|
|
|
udev_input_free(udev);
|
|
|
|
return NULL;
|
2013-12-07 13:13:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static uint64_t udev_input_get_capabilities(void *data)
|
|
|
|
{
|
|
|
|
(void)data;
|
|
|
|
|
|
|
|
return
|
|
|
|
(1 << RETRO_DEVICE_JOYPAD) |
|
|
|
|
(1 << RETRO_DEVICE_ANALOG) |
|
|
|
|
(1 << RETRO_DEVICE_KEYBOARD) |
|
|
|
|
(1 << RETRO_DEVICE_MOUSE) |
|
|
|
|
(1 << RETRO_DEVICE_LIGHTGUN);
|
|
|
|
}
|
|
|
|
|
2013-12-07 15:11:51 +00:00
|
|
|
static void udev_input_grab_mouse(void *data, bool state)
|
|
|
|
{
|
|
|
|
// Dummy for now. Might be useful in the future.
|
|
|
|
(void)data;
|
|
|
|
(void)state;
|
|
|
|
}
|
|
|
|
|
2013-12-07 13:13:40 +00:00
|
|
|
static bool udev_input_set_rumble(void *data, unsigned port, enum retro_rumble_effect effect, uint16_t strength)
|
|
|
|
{
|
|
|
|
udev_input_t *udev = (udev_input_t*)data;
|
|
|
|
return input_joypad_set_rumble(udev->joypad, port, effect, strength);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const rarch_joypad_driver_t *udev_input_get_joypad_driver(void *data)
|
|
|
|
{
|
|
|
|
udev_input_t *udev = (udev_input_t*)data;
|
|
|
|
return udev->joypad;
|
|
|
|
}
|
|
|
|
|
|
|
|
const input_driver_t input_udev = {
|
|
|
|
udev_input_init,
|
|
|
|
udev_input_poll,
|
|
|
|
udev_input_state,
|
|
|
|
udev_bind_button_pressed,
|
|
|
|
udev_input_free,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
udev_input_get_capabilities,
|
|
|
|
"udev",
|
2013-12-07 15:11:51 +00:00
|
|
|
udev_input_grab_mouse,
|
2013-12-07 13:13:40 +00:00
|
|
|
udev_input_set_rumble,
|
|
|
|
udev_input_get_joypad_driver,
|
|
|
|
};
|
|
|
|
|