gblues 0100d58ffb WIP: evolve driver implementation
== DETAILS

I've created the concept of a hid_driver_instance_t which is basically
a central place to store the hid pad driver, hid subsystem driver,
the pad list, and the instance data for the above in a central location.

The HID pad device drivers can use it to perform HID operations in a
generic manner.

This is more-or-less a pause point so I can catch up with upstream.

== TESTING

Haven't tested this yet. Compiles without warnings though!
2018-03-29 23:37:11 -07:00

111 lines
2.4 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 <stdlib.h>
#include "../input_defines.h"
#include "../input_driver.h"
#include "../include/hid_driver.h"
typedef struct null_hid
{
void *empty;
} null_hid_t;
static bool null_hid_joypad_query(void *data, unsigned pad)
{
return pad < MAX_USERS;
}
static const char *null_hid_joypad_name(void *data, unsigned pad)
{
/* TODO/FIXME - implement properly */
if (pad >= MAX_USERS)
return NULL;
return NULL;
}
static void null_hid_joypad_get_buttons(void *data, unsigned port, retro_bits_t *state)
{
(void)data;
(void)port;
BIT256_CLEAR_ALL_PTR(state);
}
static bool null_hid_joypad_button(void *data, unsigned port, uint16_t joykey)
{
(void)data;
(void)port;
(void)joykey;
return false;
}
static bool null_hid_joypad_rumble(void *data, unsigned pad,
enum retro_rumble_effect effect, uint16_t strength)
{
(void)data;
(void)pad;
(void)effect;
(void)strength;
return false;
}
static int16_t null_hid_joypad_axis(void *data, unsigned port, uint32_t joyaxis)
{
(void)data;
(void)port;
(void)joyaxis;
return 0;
}
static void *null_hid_init(hid_driver_instance_t *instance)
{
(void)instance;
return (null_hid_t*)calloc(1, sizeof(null_hid_t));
}
static void null_hid_free(const void *data)
{
null_hid_t *hid_null = (null_hid_t*)data;
if (hid_null)
free(hid_null);
}
static void null_hid_poll(void *data)
{
(void)data;
}
hid_driver_t null_hid = {
null_hid_init,
null_hid_joypad_query,
null_hid_free,
null_hid_joypad_button,
null_hid_joypad_get_buttons,
null_hid_joypad_axis,
null_hid_poll,
null_hid_joypad_rumble,
null_hid_joypad_name,
"null",
};