1/* 2 * Copyright (c) 2010 Texas Instruments, Inc. 3 * Jason Kridner <jkridner@beagleboard.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7#include <common.h> 8#include <status_led.h> 9#include <asm/arch/cpu.h> 10#include <asm/io.h> 11#include <asm/arch/sys_proto.h> 12#include <asm/gpio.h> 13 14/* GPIO pins for the LEDs */ 15#define BEAGLE_LED_USR0 150 16#define BEAGLE_LED_USR1 149 17 18#ifdef STATUS_LED_GREEN 19void green_led_off(void) 20{ 21 __led_set (STATUS_LED_GREEN, 0); 22} 23 24void green_led_on(void) 25{ 26 __led_set (STATUS_LED_GREEN, 1); 27} 28#endif 29 30static int get_led_gpio(led_id_t mask) 31{ 32#ifdef STATUS_LED_BIT 33 if (STATUS_LED_BIT & mask) 34 return BEAGLE_LED_USR0; 35#endif 36#ifdef STATUS_LED_BIT1 37 if (STATUS_LED_BIT1 & mask) 38 return BEAGLE_LED_USR1; 39#endif 40 41 return 0; 42} 43 44void __led_init (led_id_t mask, int state) 45{ 46 int toggle_gpio; 47 48 toggle_gpio = get_led_gpio(mask); 49 50 if (toggle_gpio && !gpio_request(toggle_gpio, "led")) 51 __led_set(mask, state); 52} 53 54void __led_toggle (led_id_t mask) 55{ 56 int state, toggle_gpio; 57 58 toggle_gpio = get_led_gpio(mask); 59 if (toggle_gpio) { 60 state = gpio_get_value(toggle_gpio); 61 gpio_direction_output(toggle_gpio, !state); 62 } 63} 64 65void __led_set (led_id_t mask, int state) 66{ 67 int toggle_gpio; 68 69 toggle_gpio = get_led_gpio(mask); 70 if (toggle_gpio) 71 gpio_direction_output(toggle_gpio, state); 72} 73