mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 16:39:43 +00:00
150 lines
3.7 KiB
C
150 lines
3.7 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2013-2014 - Jason Fetters
|
|
* Copyright (C) 2011-2017 - Daniel De Matteis
|
|
*
|
|
* 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 <stdint.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <boolean.h>
|
|
#include "joypad_connection.h"
|
|
|
|
#include "../input_defines.h"
|
|
|
|
struct hidpad_snesusb_data
|
|
{
|
|
struct pad_connection* connection;
|
|
uint8_t data[64];
|
|
uint32_t slot;
|
|
uint32_t buttons;
|
|
};
|
|
|
|
static void* hidpad_snesusb_init(void *data, uint32_t slot, hid_driver_t *driver)
|
|
{
|
|
struct pad_connection* connection = (struct pad_connection*)data;
|
|
struct hidpad_snesusb_data* device = (struct hidpad_snesusb_data*)
|
|
calloc(1, sizeof(struct hidpad_snesusb_data));
|
|
|
|
if (!device)
|
|
return NULL;
|
|
|
|
if (!connection)
|
|
{
|
|
free(device);
|
|
return NULL;
|
|
}
|
|
|
|
device->connection = connection;
|
|
device->slot = slot;
|
|
|
|
return device;
|
|
}
|
|
|
|
static void hidpad_snesusb_deinit(void *data)
|
|
{
|
|
struct hidpad_snesusb_data *device = (struct hidpad_snesusb_data*)data;
|
|
|
|
if (device)
|
|
free(device);
|
|
}
|
|
|
|
static void hidpad_snesusb_get_buttons(void *data, input_bits_t *state)
|
|
{
|
|
struct hidpad_snesusb_data *device = (struct hidpad_snesusb_data*)data;
|
|
if (device)
|
|
{
|
|
BITS_COPY16_PTR(state, device->buttons);
|
|
}
|
|
else
|
|
BIT256_CLEAR_ALL_PTR(state);
|
|
}
|
|
|
|
static int16_t hidpad_snesusb_get_axis(void *data, unsigned axis)
|
|
{
|
|
int val;
|
|
struct hidpad_snesusb_data *device = (struct hidpad_snesusb_data*)data;
|
|
|
|
if (!device || axis >= 2)
|
|
return 0;
|
|
|
|
val = device->data[1 + axis];
|
|
val = (val << 8) - 0x8000;
|
|
|
|
return (abs(val) > 0x1000) ? val : 0;
|
|
}
|
|
|
|
static void hidpad_snesusb_packet_handler(void *data, uint8_t *packet, uint16_t size)
|
|
{
|
|
uint32_t i, pressed_keys;
|
|
static const uint32_t button_mapping[16] =
|
|
{
|
|
RETRO_DEVICE_ID_JOYPAD_L,
|
|
RETRO_DEVICE_ID_JOYPAD_R,
|
|
NO_BTN,
|
|
NO_BTN,
|
|
RETRO_DEVICE_ID_JOYPAD_SELECT,
|
|
RETRO_DEVICE_ID_JOYPAD_START,
|
|
NO_BTN,
|
|
NO_BTN,
|
|
NO_BTN,
|
|
NO_BTN,
|
|
NO_BTN,
|
|
NO_BTN,
|
|
RETRO_DEVICE_ID_JOYPAD_X,
|
|
RETRO_DEVICE_ID_JOYPAD_A,
|
|
RETRO_DEVICE_ID_JOYPAD_B,
|
|
RETRO_DEVICE_ID_JOYPAD_Y
|
|
};
|
|
struct hidpad_snesusb_data *device = (struct hidpad_snesusb_data*)data;
|
|
|
|
if (!device)
|
|
return;
|
|
|
|
memcpy(device->data, packet, size);
|
|
|
|
device->buttons = 0;
|
|
|
|
pressed_keys = device->data[7] | (device->data[6] << 8);
|
|
|
|
for (i = 0; i < 16; i ++)
|
|
if (button_mapping[i] != NO_BTN)
|
|
device->buttons |= (pressed_keys & (1 << i)) ? (1 << button_mapping[i]) : 0;
|
|
}
|
|
|
|
static void hidpad_snesusb_set_rumble(void *data,
|
|
enum retro_rumble_effect effect, uint16_t strength)
|
|
{
|
|
(void)data;
|
|
(void)effect;
|
|
(void)strength;
|
|
}
|
|
|
|
const char * hidpad_snesusb_get_name(void *data)
|
|
{
|
|
(void)data;
|
|
/* For now we return a single static name */
|
|
return "Generic SNES USB Controller";
|
|
}
|
|
|
|
pad_connection_interface_t pad_connection_snesusb = {
|
|
hidpad_snesusb_init,
|
|
hidpad_snesusb_deinit,
|
|
hidpad_snesusb_packet_handler,
|
|
hidpad_snesusb_set_rumble,
|
|
hidpad_snesusb_get_buttons,
|
|
hidpad_snesusb_get_axis,
|
|
hidpad_snesusb_get_name,
|
|
};
|