1 /* Copyright 2018 SiFive, Inc */
2 /* SPDX-License-Identifier: Apache-2.0 */
4 #include <metal/machine/platform.h>
6 #ifdef METAL_SIFIVE_GPIO_LEDS
9 #include <metal/gpio.h>
10 #include <metal/drivers/sifive_gpio-leds.h>
11 #include <metal/machine.h>
13 int __metal_driver_led_exist (struct metal_led *led, char *label)
15 if (strcmp(__metal_driver_sifive_gpio_led_label(led), label) == 0) {
21 void __metal_driver_led_enable (struct metal_led *led)
24 struct metal_gpio *gpio;
26 pin = __metal_driver_sifive_gpio_led_pin(led);
27 gpio = __metal_driver_sifive_gpio_led_gpio(led);
30 /* Configure LED as output */
31 metal_gpio_disable_input((struct metal_gpio *) gpio, pin);
32 metal_gpio_enable_output((struct metal_gpio *) gpio, pin);
36 void __metal_driver_led_on (struct metal_led *led)
39 struct metal_gpio *gpio;
41 pin = __metal_driver_sifive_gpio_led_pin(led);
42 gpio = __metal_driver_sifive_gpio_led_gpio(led);
45 metal_gpio_set_pin((struct metal_gpio *) gpio, pin, 1);
49 void __metal_driver_led_off (struct metal_led *led)
52 struct metal_gpio *gpio;
54 pin = __metal_driver_sifive_gpio_led_pin(led);
55 gpio = __metal_driver_sifive_gpio_led_gpio(led);
58 metal_gpio_set_pin((struct metal_gpio *) gpio, pin, 0);
62 void __metal_driver_led_toggle (struct metal_led *led)
65 struct metal_gpio *gpio;
67 pin = __metal_driver_sifive_gpio_led_pin(led);
68 gpio = __metal_driver_sifive_gpio_led_gpio(led);
71 metal_gpio_toggle_pin((struct metal_gpio *) gpio, pin);
75 __METAL_DEFINE_VTABLE(__metal_driver_vtable_sifive_led) = {
76 .led_vtable.led_exist = __metal_driver_led_exist,
77 .led_vtable.led_enable = __metal_driver_led_enable,
78 .led_vtable.led_on = __metal_driver_led_on,
79 .led_vtable.led_off = __metal_driver_led_off,
80 .led_vtable.led_toggle = __metal_driver_led_toggle,
85 typedef int no_empty_translation_units;