1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Brya specific PWM LED settings: there are 2 LEDs on each side of the board,
* each one can be controlled separately. The LED colors are white or amber,
* and the default behavior is tied to the charging process: both sides are
* amber while charging the battery and white when the battery is charged.
*/
#include <stdint.h>
#include "common.h"
#include "compile_time_macros.h"
#include "ec_commands.h"
#include "led_pwm.h"
#include "pwm.h"
#include "util.h"
const enum ec_led_id supported_led_ids[] = {
EC_LED_ID_LEFT_LED,
EC_LED_ID_RIGHT_LED,
};
const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
/*
* We only have a white and an amber LED, so setting any other color results in
* both LEDs being off.
*/
struct pwm_led_color_map led_color_map[EC_LED_COLOR_COUNT] = {
/* Amber, White */
[EC_LED_COLOR_RED] = { 0, 0 },
[EC_LED_COLOR_GREEN] = { 0, 0 },
[EC_LED_COLOR_BLUE] = { 0, 0 },
[EC_LED_COLOR_YELLOW] = { 0, 0 },
[EC_LED_COLOR_WHITE] = { 0, 100 },
[EC_LED_COLOR_AMBER] = { 100, 0 },
};
/* Two logical LEDs with amber and white channels. */
struct pwm_led pwm_leds[CONFIG_LED_PWM_COUNT] = {
{
.ch0 = PWM_CH_LED1,
.ch1 = PWM_CH_LED2,
.ch2 = PWM_LED_NO_CHANNEL,
.enable = &pwm_enable,
.set_duty = &pwm_set_duty,
},
{
.ch0 = PWM_CH_LED3,
.ch1 = PWM_CH_LED4,
.ch2 = PWM_LED_NO_CHANNEL,
.enable = &pwm_enable,
.set_duty = &pwm_set_duty,
},
};
void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
memset(brightness_range, '\0',
sizeof(*brightness_range) * EC_LED_COLOR_COUNT);
brightness_range[EC_LED_COLOR_AMBER] = 100;
brightness_range[EC_LED_COLOR_WHITE] = 100;
}
int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
{
enum pwm_led_id pwm_id;
/* Convert ec_led_id to pwm_led_id. */
switch (led_id) {
case EC_LED_ID_LEFT_LED:
pwm_id = PWM_LED0;
break;
case EC_LED_ID_RIGHT_LED:
pwm_id = PWM_LED1;
break;
default:
return EC_ERROR_UNKNOWN;
}
if (brightness[EC_LED_COLOR_WHITE])
set_pwm_led_color(pwm_id, EC_LED_COLOR_WHITE);
else if (brightness[EC_LED_COLOR_AMBER])
set_pwm_led_color(pwm_id, EC_LED_COLOR_AMBER);
else
/* Otherwise, the "color" is "off". */
set_pwm_led_color(pwm_id, -1);
return EC_SUCCESS;
}
|
