| /* Copyright 2018 SiFive, Inc */ |
| /* SPDX-License-Identifier: Apache-2.0 */ |
| |
| #include <metal/machine/platform.h> |
| |
| #ifdef METAL_SIFIVE_GPIO_LEDS |
| |
| #include <string.h> |
| #include <metal/gpio.h> |
| #include <metal/drivers/sifive_gpio-leds.h> |
| #include <metal/machine.h> |
| |
| int __metal_driver_led_exist (struct metal_led *led, char *label) |
| { |
| if (strcmp(__metal_driver_sifive_gpio_led_label(led), label) == 0) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| void __metal_driver_led_enable (struct metal_led *led) |
| { |
| int pin; |
| struct metal_gpio *gpio; |
| |
| pin = __metal_driver_sifive_gpio_led_pin(led); |
| gpio = __metal_driver_sifive_gpio_led_gpio(led); |
| |
| if (gpio != NULL) { |
| /* Configure LED as output */ |
| metal_gpio_disable_input((struct metal_gpio *) gpio, pin); |
| metal_gpio_enable_output((struct metal_gpio *) gpio, pin); |
| } |
| } |
| |
| void __metal_driver_led_on (struct metal_led *led) |
| { |
| int pin; |
| struct metal_gpio *gpio; |
| |
| pin = __metal_driver_sifive_gpio_led_pin(led); |
| gpio = __metal_driver_sifive_gpio_led_gpio(led); |
| |
| if (gpio != NULL) { |
| metal_gpio_set_pin((struct metal_gpio *) gpio, pin, 1); |
| } |
| } |
| |
| void __metal_driver_led_off (struct metal_led *led) |
| { |
| int pin; |
| struct metal_gpio *gpio; |
| |
| pin = __metal_driver_sifive_gpio_led_pin(led); |
| gpio = __metal_driver_sifive_gpio_led_gpio(led); |
| |
| if (gpio != NULL) { |
| metal_gpio_set_pin((struct metal_gpio *) gpio, pin, 0); |
| } |
| } |
| |
| void __metal_driver_led_toggle (struct metal_led *led) |
| { |
| int pin; |
| struct metal_gpio *gpio; |
| |
| pin = __metal_driver_sifive_gpio_led_pin(led); |
| gpio = __metal_driver_sifive_gpio_led_gpio(led); |
| |
| if (gpio != NULL) { |
| metal_gpio_toggle_pin((struct metal_gpio *) gpio, pin); |
| } |
| } |
| |
| __METAL_DEFINE_VTABLE(__metal_driver_vtable_sifive_led) = { |
| .led_vtable.led_exist = __metal_driver_led_exist, |
| .led_vtable.led_enable = __metal_driver_led_enable, |
| .led_vtable.led_on = __metal_driver_led_on, |
| .led_vtable.led_off = __metal_driver_led_off, |
| .led_vtable.led_toggle = __metal_driver_led_toggle, |
| }; |
| |
| #endif |
| |
| typedef int no_empty_translation_units; |