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- // 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();
- }
- }
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