xref: /openbmc/u-boot/board/ti/beagle/led.c (revision ac1058fd)
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