86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2010, 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/arch/ep93xx.h>
|
|
#include <config.h>
|
|
#include <status_led.h>
|
|
|
|
static uint8_t saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
|
|
static uint32_t gpio_pin[2] = {1 << STATUS_LED_GREEN,
|
|
1 << STATUS_LED_RED};
|
|
|
|
inline void switch_LED_on(uint8_t led)
|
|
{
|
|
register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
|
|
|
|
writel(readl(&gpio->pedr) | gpio_pin[led], &gpio->pedr);
|
|
saved_state[led] = STATUS_LED_ON;
|
|
}
|
|
|
|
inline void switch_LED_off(uint8_t led)
|
|
{
|
|
register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
|
|
|
|
writel(readl(&gpio->pedr) & ~gpio_pin[led], &gpio->pedr);
|
|
saved_state[led] = STATUS_LED_OFF;
|
|
}
|
|
|
|
void red_led_on(void)
|
|
{
|
|
switch_LED_on(STATUS_LED_RED);
|
|
}
|
|
|
|
void red_led_off(void)
|
|
{
|
|
switch_LED_off(STATUS_LED_RED);
|
|
}
|
|
|
|
void green_led_on(void)
|
|
{
|
|
switch_LED_on(STATUS_LED_GREEN);
|
|
}
|
|
|
|
void green_led_off(void)
|
|
{
|
|
switch_LED_off(STATUS_LED_GREEN);
|
|
}
|
|
|
|
void __led_init(led_id_t mask, int state)
|
|
{
|
|
__led_set(mask, state);
|
|
}
|
|
|
|
void __led_toggle(led_id_t mask)
|
|
{
|
|
if (STATUS_LED_RED == mask) {
|
|
if (STATUS_LED_ON == saved_state[STATUS_LED_RED])
|
|
red_led_off();
|
|
else
|
|
red_led_on();
|
|
} else if (STATUS_LED_GREEN == mask) {
|
|
if (STATUS_LED_ON == saved_state[STATUS_LED_GREEN])
|
|
green_led_off();
|
|
else
|
|
green_led_on();
|
|
}
|
|
}
|
|
|
|
void __led_set(led_id_t mask, int state)
|
|
{
|
|
if (STATUS_LED_RED == mask) {
|
|
if (STATUS_LED_ON == state)
|
|
red_led_on();
|
|
else
|
|
red_led_off();
|
|
} else if (STATUS_LED_GREEN == mask) {
|
|
if (STATUS_LED_ON == state)
|
|
green_led_on();
|
|
else
|
|
green_led_off();
|
|
}
|
|
}
|