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https://github.com/libretro/RetroArch.git
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f56cbd847d
New driver for controlling system LEDs offered via /sys/class/leds. Currently it handles led0, led1 etc. type of entries, which are present on e.g. Raspberry Pi's.
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* RetroArch - A frontend for libretro.
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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 <string/stdstring.h>
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#include "led_driver.h"
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#include "../verbosity.h"
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static const led_driver_t *current_led_driver = NULL;
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static void null_led_init(void) { }
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static void null_led_free(void) { }
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static void null_led_set(int led, int state) { }
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static const led_driver_t null_led_driver = {
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null_led_init,
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null_led_free,
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null_led_set,
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"null"
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};
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void led_driver_init(const char *led_driver)
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{
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const char *drivername = led_driver;
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if (!drivername)
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drivername = (const char*)"null";
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current_led_driver = &null_led_driver;
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#ifdef HAVE_OVERLAY
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if (string_is_equal("overlay", drivername))
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current_led_driver = &overlay_led_driver;
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#endif
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#ifdef HAVE_RPILED
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if (string_is_equal("rpi", drivername))
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current_led_driver = &rpi_led_driver;
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if (string_is_equal("sysled", drivername))
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current_led_driver = &sys_led_driver;
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#endif
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#if (defined(_WIN32) && !defined(_XBOX) && !defined(__WINRT__)) || defined(HAVE_X11)
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if (string_is_equal("keyboard", drivername))
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current_led_driver = &keyboard_led_driver;
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#endif
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if (current_led_driver)
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(*current_led_driver->init)();
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if (!string_is_equal("null", drivername))
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RARCH_LOG("[LED]: Using driver: \"%s\".\n", led_driver);
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}
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void led_driver_free(void)
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{
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if (current_led_driver)
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(*current_led_driver->free)();
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}
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void led_driver_set_led(int led, int value)
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{
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if (current_led_driver)
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(*current_led_driver->set_led)(led, value);
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}
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