1 /*
2 * Copyright (c) 2013 Corscience GmbH & Co.KG
3 * Andreas Bießmann <andreas.biessmann@corscience.de>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7 #include <common.h>
8 #include <status_led.h>
9 #include <twl4030.h>
10 #include <asm/arch/cpu.h>
11 #include <asm/io.h>
12 #include <asm/arch/sys_proto.h>
13 #include <asm/gpio.h>
14
15 #define TRICORDER_STATUS_LED_YELLOW 42
16 #define TRICORDER_STATUS_LED_GREEN 43
17
__led_init(led_id_t mask,int state)18 void __led_init(led_id_t mask, int state)
19 {
20 __led_set(mask, state);
21 }
22
__led_toggle(led_id_t mask)23 void __led_toggle(led_id_t mask)
24 {
25 int toggle_gpio = 0;
26 #ifdef CONFIG_LED_STATUS0
27 if (!toggle_gpio && CONFIG_LED_STATUS_BIT & mask)
28 toggle_gpio = TRICORDER_STATUS_LED_GREEN;
29 #endif
30 #ifdef CONFIG_LED_STATUS1
31 if (!toggle_gpio && CONFIG_LED_STATUS_BIT1 & mask)
32 toggle_gpio = TRICORDER_STATUS_LED_YELLOW;
33 #endif
34 #ifdef CONFIG_LED_STATUS2
35 if (!toggle_gpio && CONFIG_LED_STATUS_BIT2 & mask) {
36 uint8_t val;
37 twl4030_i2c_read_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN,
38 &val);
39 val ^= (TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDAPWM);
40 twl4030_i2c_write_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN,
41 val);
42 }
43 #endif
44 if (toggle_gpio) {
45 int state;
46 gpio_request(toggle_gpio, "");
47 state = gpio_get_value(toggle_gpio);
48 gpio_set_value(toggle_gpio, !state);
49 }
50 }
51
__led_set(led_id_t mask,int state)52 void __led_set(led_id_t mask, int state)
53 {
54 #ifdef CONFIG_LED_STATUS0
55 if (CONFIG_LED_STATUS_BIT & mask) {
56 gpio_request(TRICORDER_STATUS_LED_GREEN, "");
57 gpio_direction_output(TRICORDER_STATUS_LED_GREEN, 0);
58 gpio_set_value(TRICORDER_STATUS_LED_GREEN, state);
59 }
60 #endif
61 #ifdef CONFIG_LED_STATUS1
62 if (CONFIG_LED_STATUS_BIT1 & mask) {
63 gpio_request(TRICORDER_STATUS_LED_YELLOW, "");
64 gpio_direction_output(TRICORDER_STATUS_LED_YELLOW, 0);
65 gpio_set_value(TRICORDER_STATUS_LED_YELLOW, state);
66 }
67 #endif
68 #ifdef CONFIG_LED_STATUS2
69 if (CONFIG_LED_STATUS_BIT2 & mask) {
70 if (CONFIG_LED_STATUS_OFF == state)
71 twl4030_i2c_write_u8(TWL4030_CHIP_LED,
72 TWL4030_LED_LEDEN, 0);
73 else
74 twl4030_i2c_write_u8(TWL4030_CHIP_LED,
75 TWL4030_LED_LEDEN,
76 (TWL4030_LED_LEDEN_LEDAON |
77 TWL4030_LED_LEDEN_LEDAPWM));
78 }
79 #endif
80 }
81