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 19 void green_led_off(void) 20 { 21 __led_set (STATUS_LED_GREEN, 0); 22 } 23 24 void green_led_on(void) 25 { 26 __led_set (STATUS_LED_GREEN, 1); 27 } 28 #endif 29 30 void __led_init (led_id_t mask, int state) 31 { 32 __led_set (mask, state); 33 } 34 35 void __led_toggle (led_id_t mask) 36 { 37 int state, toggle_gpio = 0; 38 #ifdef STATUS_LED_BIT 39 if (!toggle_gpio && STATUS_LED_BIT & mask) 40 toggle_gpio = BEAGLE_LED_USR0; 41 #endif 42 #ifdef STATUS_LED_BIT1 43 if (!toggle_gpio && STATUS_LED_BIT1 & mask) 44 toggle_gpio = BEAGLE_LED_USR1; 45 #endif 46 if (toggle_gpio) { 47 if (!gpio_request(toggle_gpio, "")) { 48 gpio_direction_output(toggle_gpio, 0); 49 state = gpio_get_value(toggle_gpio); 50 gpio_set_value(toggle_gpio, !state); 51 } 52 } 53 } 54 55 void __led_set (led_id_t mask, int state) 56 { 57 #ifdef STATUS_LED_BIT 58 if (STATUS_LED_BIT & mask) { 59 if (!gpio_request(BEAGLE_LED_USR0, "")) { 60 gpio_direction_output(BEAGLE_LED_USR0, 0); 61 gpio_set_value(BEAGLE_LED_USR0, state); 62 } 63 } 64 #endif 65 #ifdef STATUS_LED_BIT1 66 if (STATUS_LED_BIT1 & mask) { 67 if (!gpio_request(BEAGLE_LED_USR1, "")) { 68 gpio_direction_output(BEAGLE_LED_USR1, 0); 69 gpio_set_value(BEAGLE_LED_USR1, state); 70 } 71 } 72 #endif 73 } 74