1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* 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
|
