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https://github.com/AsahiLinux/u-boot
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
/*
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* Copyright (C) 2010, 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/io.h>
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#include <asm/arch/ep93xx.h>
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#include <config.h>
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#include <status_led.h>
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static uint8_t saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
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static uint32_t gpio_pin[2] = {1 << STATUS_LED_GREEN,
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1 << STATUS_LED_RED};
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inline void switch_LED_on(uint8_t led)
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{
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register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
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writel(readl(&gpio->pedr) | gpio_pin[led], &gpio->pedr);
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saved_state[led] = STATUS_LED_ON;
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}
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inline void switch_LED_off(uint8_t led)
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{
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register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
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writel(readl(&gpio->pedr) & ~gpio_pin[led], &gpio->pedr);
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saved_state[led] = STATUS_LED_OFF;
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}
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void red_led_on(void)
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{
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switch_LED_on(STATUS_LED_RED);
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}
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void red_led_off(void)
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{
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switch_LED_off(STATUS_LED_RED);
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}
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void green_led_on(void)
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{
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switch_LED_on(STATUS_LED_GREEN);
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}
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void green_led_off(void)
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{
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switch_LED_off(STATUS_LED_GREEN);
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}
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void __led_init(led_id_t mask, int state)
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{
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__led_set(mask, state);
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}
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void __led_toggle(led_id_t mask)
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{
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if (STATUS_LED_RED == mask) {
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if (STATUS_LED_ON == saved_state[STATUS_LED_RED])
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red_led_off();
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else
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red_led_on();
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} else if (STATUS_LED_GREEN == mask) {
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if (STATUS_LED_ON == saved_state[STATUS_LED_GREEN])
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green_led_off();
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else
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green_led_on();
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}
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}
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void __led_set(led_id_t mask, int state)
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{
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if (STATUS_LED_RED == mask) {
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if (STATUS_LED_ON == state)
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red_led_on();
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else
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red_led_off();
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} else if (STATUS_LED_GREEN == mask) {
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if (STATUS_LED_ON == state)
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green_led_on();
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else
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green_led_off();
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}
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}
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