mirror of
https://github.com/libretro/RetroArch.git
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139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - 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 "input_hid_driver.h"
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string/string_list.h>
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#include "../driver.h"
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#include "../general.h"
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static hid_driver_t *hid_drivers[] = {
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#if defined(__APPLE__) && defined(IOS)
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&btstack_hid,
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#endif
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#if defined(__APPLE__) && !defined(IOS)
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&apple_hid,
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#endif
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#ifdef HAVE_LIBUSB
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&libusb_hid,
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#endif
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&null_hid,
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NULL,
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};
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/**
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* hid_driver_find_handle:
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* @idx : index of driver to get handle to.
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*
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* Returns: handle to HID driver at index. Can be NULL
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* if nothing found.
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**/
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const void *hid_driver_find_handle(int idx)
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{
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const void *drv = hid_drivers[idx];
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if (!drv)
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return NULL;
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return drv;
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}
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/**
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* hid_driver_find_ident:
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* @idx : index of driver to get handle to.
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*
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* Returns: Human-readable identifier of HID driver at index. Can be NULL
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* if nothing found.
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**/
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const char *hid_driver_find_ident(int idx)
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{
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const hid_driver_t *drv = hid_drivers[idx];
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if (!drv)
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return NULL;
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return drv->ident;
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}
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/**
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* config_get_hid_driver_options:
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*
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* Get an enumerated list of all HID driver names, separated by '|'.
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*
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* Returns: string listing of all HID driver names, separated by '|'.
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**/
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const char* config_get_hid_driver_options(void)
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{
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union string_list_elem_attr attr;
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unsigned i;
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char *options = NULL;
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int options_len = 0;
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struct string_list *options_l = string_list_new();
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attr.i = 0;
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if (!options_l)
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return NULL;
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for (i = 0; hid_drivers[i]; i++)
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{
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const char *opt = hid_drivers[i]->ident;
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options_len += strlen(opt) + 1;
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string_list_append(options_l, opt, attr);
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}
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options = (char*)calloc(options_len, sizeof(char));
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if (!options)
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{
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string_list_free(options_l);
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options_l = NULL;
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return NULL;
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}
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string_list_join_concat(options, options_len, options_l, "|");
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string_list_free(options_l);
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options_l = NULL;
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return options;
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}
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/**
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* input_hid_init_first:
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*
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* Finds first suitable HID driver and initializes.
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*
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* Returns: HID driver if found, otherwise NULL.
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**/
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const hid_driver_t *input_hid_init_first(void)
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{
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unsigned i;
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for (i = 0; hid_drivers[i]; i++)
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{
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driver_t *driver = driver_get_ptr();
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driver->hid_data = hid_drivers[i]->init();
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if (driver->hid_data)
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{
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RARCH_LOG("Found HID driver: \"%s\".\n",
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hid_drivers[i]->ident);
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return hid_drivers[i];
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}
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}
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return NULL;
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}
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