u-boot/arch/arm/cpu/arm920t/ep93xx/led.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

85 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2010, 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
*/
#include <asm/io.h>
#include <asm/arch/ep93xx.h>
#include <config.h>
#include <status_led.h>
static uint8_t saved_state[2] = {CONFIG_LED_STATUS_OFF, CONFIG_LED_STATUS_OFF};
static uint32_t gpio_pin[2] = {1 << CONFIG_LED_STATUS_GREEN,
1 << CONFIG_LED_STATUS_RED};
static 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] = CONFIG_LED_STATUS_ON;
}
static 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] = CONFIG_LED_STATUS_OFF;
}
void red_led_on(void)
{
switch_LED_on(CONFIG_LED_STATUS_RED);
}
void red_led_off(void)
{
switch_LED_off(CONFIG_LED_STATUS_RED);
}
void green_led_on(void)
{
switch_LED_on(CONFIG_LED_STATUS_GREEN);
}
void green_led_off(void)
{
switch_LED_off(CONFIG_LED_STATUS_GREEN);
}
void __led_init(led_id_t mask, int state)
{
__led_set(mask, state);
}
void __led_toggle(led_id_t mask)
{
if (CONFIG_LED_STATUS_RED == mask) {
if (CONFIG_LED_STATUS_ON == saved_state[CONFIG_LED_STATUS_RED])
red_led_off();
else
red_led_on();
} else if (CONFIG_LED_STATUS_GREEN == mask) {
if (CONFIG_LED_STATUS_ON ==
saved_state[CONFIG_LED_STATUS_GREEN])
green_led_off();
else
green_led_on();
}
}
void __led_set(led_id_t mask, int state)
{
if (CONFIG_LED_STATUS_RED == mask) {
if (CONFIG_LED_STATUS_ON == state)
red_led_on();
else
red_led_off();
} else if (CONFIG_LED_STATUS_GREEN == mask) {
if (CONFIG_LED_STATUS_ON == state)
green_led_on();
else
green_led_off();
}
}