mirror of
https://github.com/libretro/RetroArch
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bca4ccb155
In order to have a controller working you need: 1) Have a matching HID autoconfig file in autoconfig/hid for your controller. 2) Create a "connect" driver for the pad in "input/connect" folder (source code of RA). 3) Once you are in RA, change the joystick driver to HID and restart. 4) You may be now able to use you USB HID compatible pad in RA. I included some "connect" drivers as an example. It also need to include them for compilation.
147 lines
3.7 KiB
C
147 lines
3.7 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2013-2014 - Jason Fetters
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* Copyright (C) 2011-2016 - 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 <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include <boolean.h>
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#include "joypad_connection.h"
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struct hidpad_nesusb_data
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{
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struct pad_connection* connection;
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uint8_t data[64];
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uint32_t slot;
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uint64_t buttons;
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};
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static void* hidpad_nesusb_init(void *data, uint32_t slot, send_control_t ptr)
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{
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struct pad_connection* connection = (struct pad_connection*)data;
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struct hidpad_nesusb_data* device = (struct hidpad_nesusb_data*)
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calloc(1, sizeof(struct hidpad_nesusb_data));
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if (!device)
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return NULL;
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if (!connection)
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{
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free(device);
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return NULL;
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}
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device->connection = connection;
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device->slot = slot;
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return device;
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}
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static void hidpad_nesusb_deinit(void *data)
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{
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struct hidpad_nesusb_data *device = (struct hidpad_nesusb_data*)data;
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if (device)
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free(device);
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}
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static uint64_t hidpad_nesusb_get_buttons(void *data)
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{
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struct hidpad_nesusb_data *device = (struct hidpad_nesusb_data*)data;
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if (!device)
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return 0;
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return device->buttons;
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}
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static int16_t hidpad_nesusb_get_axis(void *data, unsigned axis)
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{
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int val;
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struct hidpad_nesusb_data *device = (struct hidpad_nesusb_data*)data;
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if (!device || axis >= 2)
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return 0;
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val = device->data[4 + axis];
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val = (val << 8) - 0x8000;
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return (abs(val) > 0x1000) ? val : 0;
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}
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static void hidpad_nesusb_packet_handler(void *data, uint8_t *packet, uint16_t size)
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{
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uint32_t i, pressed_keys;
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static const uint32_t button_mapping[17] =
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{
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NO_BTN,
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NO_BTN,
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NO_BTN,
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NO_BTN,
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RETRO_DEVICE_ID_JOYPAD_SELECT,
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RETRO_DEVICE_ID_JOYPAD_START,
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NO_BTN,
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NO_BTN,
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NO_BTN,
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NO_BTN,
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NO_BTN,
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NO_BTN,
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RETRO_DEVICE_ID_JOYPAD_B,
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RETRO_DEVICE_ID_JOYPAD_A,
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NO_BTN,
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NO_BTN,
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16, /* HOME BUTTON when pressing SELECT+START */
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};
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struct hidpad_nesusb_data *device = (struct hidpad_nesusb_data*)data;
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if (!device)
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return;
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memcpy(device->data, packet, size);
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device->buttons = 0;
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pressed_keys = device->data[7] | (device->data[6] << 8) |
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(((device->data[7] & 0x30) == 0x30) ? (1 << 16) : 0); /* SELECT+START=HOME */
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for (i = 0; i < 17; i ++)
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if (button_mapping[i] != NO_BTN)
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device->buttons |= (pressed_keys & (1 << i)) ? (UINT64_C(1) << button_mapping[i]) : 0;
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}
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static void hidpad_nesusb_set_rumble(void *data,
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enum retro_rumble_effect effect, uint16_t strength)
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{
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(void)data;
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(void)effect;
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(void)strength;
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}
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const char * hidpad_nesusb_get_name(void *data)
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{
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(void)data;
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/* For now we return a single static name */
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return "Generic NES USB Controller";
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}
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pad_connection_interface_t pad_connection_nesusb = {
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hidpad_nesusb_init,
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hidpad_nesusb_deinit,
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hidpad_nesusb_packet_handler,
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hidpad_nesusb_set_rumble,
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hidpad_nesusb_get_buttons,
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hidpad_nesusb_get_axis,
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hidpad_nesusb_get_name,
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};
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