1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (c) 2010 Texas Instruments, Inc.
3*4882a593Smuzhiyun * Jason Kridner <jkridner@beagleboard.org>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <status_led.h>
9*4882a593Smuzhiyun #include <asm/arch/cpu.h>
10*4882a593Smuzhiyun #include <asm/io.h>
11*4882a593Smuzhiyun #include <asm/arch/sys_proto.h>
12*4882a593Smuzhiyun #include <asm/gpio.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun /* GPIO pins for the LEDs */
15*4882a593Smuzhiyun #define BEAGLE_LED_USR0 150
16*4882a593Smuzhiyun #define BEAGLE_LED_USR1 149
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #ifdef CONFIG_LED_STATUS_GREEN
green_led_off(void)19*4882a593Smuzhiyun void green_led_off(void)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun __led_set(CONFIG_LED_STATUS_GREEN, 0);
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun
green_led_on(void)24*4882a593Smuzhiyun void green_led_on(void)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun __led_set(CONFIG_LED_STATUS_GREEN, 1);
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun #endif
29*4882a593Smuzhiyun
get_led_gpio(led_id_t mask)30*4882a593Smuzhiyun static int get_led_gpio(led_id_t mask)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun #ifdef CONFIG_LED_STATUS0
33*4882a593Smuzhiyun if (CONFIG_LED_STATUS_BIT & mask)
34*4882a593Smuzhiyun return BEAGLE_LED_USR0;
35*4882a593Smuzhiyun #endif
36*4882a593Smuzhiyun #ifdef CONFIG_LED_STATUS1
37*4882a593Smuzhiyun if (CONFIG_LED_STATUS_BIT1 & mask)
38*4882a593Smuzhiyun return BEAGLE_LED_USR1;
39*4882a593Smuzhiyun #endif
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun return 0;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
__led_init(led_id_t mask,int state)44*4882a593Smuzhiyun void __led_init (led_id_t mask, int state)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun int toggle_gpio;
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun toggle_gpio = get_led_gpio(mask);
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun if (toggle_gpio && !gpio_request(toggle_gpio, "led"))
51*4882a593Smuzhiyun __led_set(mask, state);
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
__led_toggle(led_id_t mask)54*4882a593Smuzhiyun void __led_toggle (led_id_t mask)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun int state, toggle_gpio;
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun toggle_gpio = get_led_gpio(mask);
59*4882a593Smuzhiyun if (toggle_gpio) {
60*4882a593Smuzhiyun state = gpio_get_value(toggle_gpio);
61*4882a593Smuzhiyun gpio_direction_output(toggle_gpio, !state);
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun
__led_set(led_id_t mask,int state)65*4882a593Smuzhiyun void __led_set (led_id_t mask, int state)
66*4882a593Smuzhiyun {
67*4882a593Smuzhiyun int toggle_gpio;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun toggle_gpio = get_led_gpio(mask);
70*4882a593Smuzhiyun if (toggle_gpio)
71*4882a593Smuzhiyun gpio_direction_output(toggle_gpio, state);
72*4882a593Smuzhiyun }
73