Mirrors
/
RetroArch
mirror of https://github.com/libretro/RetroArch.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
RetroArch/input/connect/connect_wiiugca.c

341 lines
8.8 KiB
C
Raw Blame History

/* 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"
#define GCA_MAX_PAD 4
#define GCA_TYPE_DEVICE 0x00
#define GCA_TYPE_PAD 0x01
#define GCA_PORT_INITIALIZING 0x00
#define GCA_PORT_POWERED 0x04
#define GCA_PORT_CONNECTED 0x10
#define GCA_WAVEBIRD_CONNECTED 0x22
typedef struct hidpad_wiiugca_pad_data gca_pad_data_t;
typedef struct hidpad_wiiugca_data gca_device_data_t;
struct hidpad_wiiugca_pad_data
{
uint8_t datatype;
gca_device_data_t *device_data;
joypad_connection_t *joypad;
int pad_index;
uint32_t buttons;
int16_t analog[3][2];
uint8_t data[9];
};
struct hidpad_wiiugca_data
{
uint8_t datatype;
void *handle;
hid_driver_t *driver;
char connected[GCA_MAX_PAD];
gca_pad_data_t pad_data[GCA_MAX_PAD];
uint8_t data[64];
};
const char *GAMECUBE_PAD = "GameCube controller";
const char *WAVEBIRD_PAD = "WaveBird controller";
const char *DEVICE_NAME = "Wii U GC Controller Adapter";
static void* hidpad_wiiugca_init(void *data, uint32_t slot, hid_driver_t *driver)
{
#ifdef WIIU
static uint8_t magic_data[] = {0x13 }; /* Special command to enable reading */
#else
static uint8_t magic_data[] = {0x01, 0x13}; /* Special command to enable reading */
#endif
int i;
gca_device_data_t * device = (gca_device_data_t *)calloc(1, sizeof(gca_device_data_t));
if (!device)
return NULL;
if (!data)
{
free(device);
return NULL;
}
device->handle = data;
for (i = 0; i < GCA_MAX_PAD; i++)
{
device->pad_data[i].datatype = GCA_TYPE_PAD;
device->pad_data[i].device_data = device;
device->pad_data[i].joypad = NULL;
device->pad_data[i].pad_index = i;
}
device->driver = driver;
device->driver->send_control(device->handle, magic_data, sizeof(magic_data));
return device;
}
static void hidpad_wiiugca_deinit(void *device_data)
{
gca_device_data_t *device = (gca_device_data_t *)device_data;
if (device)
free(device);
}
static void hidpad_wiiugca_get_buttons(void *pad_data, input_bits_t *state)
{
gca_pad_data_t *pad = (gca_pad_data_t *)pad_data;
if (pad)
{
if (pad->datatype == GCA_TYPE_PAD)
{
BITS_COPY16_PTR(state, pad->buttons);
}
else
{
gca_device_data_t *device = (gca_device_data_t *)pad_data;
BITS_COPY16_PTR(state, device->pad_data[0].buttons);
}
}
else
{
BIT256_CLEAR_ALL_PTR(state);
}
}
static int16_t hidpad_wiiugca_get_axis(void *pad_data, unsigned axis)
{
axis_data axis_data;
gca_pad_data_t *pad = (gca_pad_data_t *)pad_data;
gca_device_data_t *device = (gca_device_data_t *)pad_data;
gamepad_read_axis_data(axis, &axis_data);
if (!pad || axis_data.axis >= 4)
return 0;
if (pad->datatype == GCA_TYPE_PAD)
return gamepad_get_axis_value(pad->analog, &axis_data);
return gamepad_get_axis_value(device->pad_data[0].analog, &axis_data);
}
static void update_button_state(gca_pad_data_t *pad)
{
uint32_t i, pressed_keys;
static const uint32_t button_mapping[12] =
{
RETRO_DEVICE_ID_JOYPAD_A,
RETRO_DEVICE_ID_JOYPAD_B,
RETRO_DEVICE_ID_JOYPAD_X,
RETRO_DEVICE_ID_JOYPAD_Y,
RETRO_DEVICE_ID_JOYPAD_LEFT,
RETRO_DEVICE_ID_JOYPAD_RIGHT,
RETRO_DEVICE_ID_JOYPAD_DOWN,
RETRO_DEVICE_ID_JOYPAD_UP,
RETRO_DEVICE_ID_JOYPAD_START,
RETRO_DEVICE_ID_JOYPAD_SELECT,
RETRO_DEVICE_ID_JOYPAD_R,
RETRO_DEVICE_ID_JOYPAD_L,
};
if (!pad)
return;
pressed_keys = pad->data[1] | (pad->data[2] << 8);
pad->buttons = 0;
for (i = 0; i < 12; i++)
pad->buttons |= (pressed_keys & (1 << i)) ?
(1 << button_mapping[i]) : 0;
}
static void update_analog_state(gca_pad_data_t *pad)
{
int pad_axis;
int16_t interpolated;
unsigned stick, axis;
/* GameCube analog axis are 8-bit unsigned, where 128/128 is center.
* So, we subtract 128 to get a signed, 0-based value and then mulitply
* by 256 to get the 16-bit range RetroArch expects. */
for (pad_axis = 0; pad_axis < 4; pad_axis++)
{
axis = (pad_axis % 2) ? 0 : 1;
stick = pad_axis / 2;
interpolated = pad->data[3 + pad_axis];
/* libretro requires "up" to be negative, so we invert the y axis */
interpolated = (axis) ?
((interpolated - 128) * 256) :
((interpolated - 128) * -256);
pad->analog[stick][axis] = interpolated;
}
}
static void hidpad_wiiugca_pad_packet_handler(gca_pad_data_t *pad, uint8_t *packet, size_t size)
{
if (size > 9)
return;
memcpy(pad->data, packet, size);
update_button_state(pad);
update_analog_state(pad);
}
static void hidpad_wiiugca_packet_handler(void *device_data, uint8_t *packet, uint16_t size)
{
uint32_t i;
int port;
unsigned char port_connected;
gca_device_data_t *device = (gca_device_data_t *)device_data;
if (!device)
return;
memcpy(device->data, packet, size);
for (i = 1; i < 37; i += 9)
{
port = i / 9;
port_connected = device->data[i];
if (port_connected > GCA_PORT_POWERED)
{
device->connected[port] = port_connected;
hidpad_wiiugca_pad_packet_handler(&device->pad_data[port], &device->data[i], 9);
}
else
device->connected[port] = 0;
}
}
static void hidpad_wiiugca_set_rumble(void *data,
enum retro_rumble_effect effect, uint16_t strength)
{
(void)data;
(void)effect;
(void)strength;
}
const char *hidpad_wiiugca_get_name(void *pad_data)
{
gca_pad_data_t *pad = (gca_pad_data_t *)pad_data;
if (!pad || pad->datatype != GCA_TYPE_PAD)
return DEVICE_NAME;
switch(pad->device_data->connected[pad->pad_index])
{
case 0:
return DEVICE_NAME;
case GCA_WAVEBIRD_CONNECTED:
return WAVEBIRD_PAD;
default:
break;
}
/* For now we return a single static name */
return GAMECUBE_PAD;
}
static int32_t hidpad_wiiugca_button(void *pad_data, uint16_t joykey)
{
gca_pad_data_t *pad = (gca_pad_data_t *)pad_data;
if (!pad)
return 0;
if (pad->datatype != GCA_TYPE_PAD)
{
gca_device_data_t *device = (gca_device_data_t *)pad_data;
pad = &device->pad_data[0];
}
if (!pad->device_data || joykey > 31 || !pad->joypad)
return 0;
return pad->buttons & (1 << joykey);
}
static void *hidpad_wiiugca_pad_init(void *device_data, int pad_index, joypad_connection_t *joypad)
{
gca_device_data_t *device = (gca_device_data_t *)device_data;
if (!device || pad_index < 0 || pad_index >= GCA_MAX_PAD || !joypad || device->pad_data[pad_index].joypad || !device->connected[pad_index])
return NULL;
device->pad_data[pad_index].joypad = joypad;
return &device->pad_data[pad_index];
}
static void hidpad_wiiugca_pad_deinit(void *pad_data)
{
gca_pad_data_t *pad = (gca_pad_data_t *)pad_data;
if (pad)
pad->joypad = NULL;
}
static int8_t hidpad_wiiugca_status(void *device_data, int pad_index)
{
int8_t result = 0;
gca_device_data_t *device = (gca_device_data_t *)device_data;
if (!device || pad_index < 0 || pad_index >= GCA_MAX_PAD)
return 0;
if (device->connected[pad_index])
result |= PAD_CONNECT_READY;
if (device->pad_data[pad_index].joypad)
result |= PAD_CONNECT_BOUND;
return result;
}
static joypad_connection_t *hidpad_wiiugca_joypad(void *device_data, int pad_index)
{
gca_device_data_t *device = (gca_device_data_t *)device_data;
if (!device || pad_index < 0 || pad_index >= GCA_MAX_PAD)
return 0;
return device->pad_data[pad_index].joypad;
}
pad_connection_interface_t pad_connection_wiiugca = {
hidpad_wiiugca_init,
hidpad_wiiugca_deinit,
hidpad_wiiugca_packet_handler,
hidpad_wiiugca_set_rumble,
hidpad_wiiugca_get_buttons,
hidpad_wiiugca_get_axis,
hidpad_wiiugca_get_name,
hidpad_wiiugca_button,
true,
GCA_MAX_PAD,
hidpad_wiiugca_pad_init,
hidpad_wiiugca_pad_deinit,
hidpad_wiiugca_status,
hidpad_wiiugca_joypad,
};
Reference in New Issue View Git Blame Copy Permalink