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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __CROS_EC_LED_H__
#define __CROS_EC_LED_H__
#include <zephyr/devicetree.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/pwm.h>
#define COMPAT_GPIO_LED cros_ec_gpio_led_pins
#define COMPAT_PWM_LED cros_ec_pwm_led_pins
#define PINS_NODE(id) DT_CAT(PIN_NODE_, id)
#define PINS_ARRAY(id) DT_CAT(PINS_ARRAY_, id)
/*
* Return string-token if the property exists, otherwise return 0
*/
#define GET_PROP(id, prop) \
COND_CODE_1(DT_NODE_HAS_PROP(id, prop), \
(DT_STRING_UPPER_TOKEN(id, prop)), (0))
/*
* Return string-token if the property exists, otherwise return -1
*/
#define GET_PROP_NVE(id, prop) \
COND_CODE_1(DT_NODE_HAS_PROP(id, prop), \
(DT_STRING_UPPER_TOKEN(id, prop)), (-1))
#define LED_ENUM(id, enum_name) DT_STRING_TOKEN(id, enum_name)
#define LED_ENUM_WITH_COMMA(id, enum_name) \
COND_CODE_1(DT_NODE_HAS_PROP(id, enum_name), \
(LED_ENUM(id, enum_name), ), ())
#define GPIO_LED_PINS_NODE DT_PATH(gpio_led_pins)
#define PWM_LED_PINS_NODE DT_PATH(pwm_led_pins)
enum led_color {
LED_OFF,
LED_RED,
LED_GREEN,
LED_BLUE,
LED_YELLOW,
LED_WHITE,
LED_AMBER,
LED_COLOR_COUNT /* Number of colors, not a color itself */
};
/*
* Struct defining LED GPIO pin and value to set.
*/
struct gpio_pin_t {
enum gpio_signal signal;
int val;
};
/*
* Struct defining LED PWM pin and duty cycle to set.
*/
struct pwm_pin_t {
struct pwm_dt_spec pwm;
uint32_t pulse_ns; /* PWM Duty cycle ns */
};
/*
* Pin node contains LED color and array of gpio/pwm pins
* to alter in order to enable the given color.
*/
struct led_pins_node_t {
/*
* Link between color and pins node. Only used to support
* ectool functionality.
*/
int led_color;
/*
* Link between color and pins node. Only used to support
* ectool functionality.
*/
enum ec_led_id led_id;
/* Brightness Range color, only used to support ectool functionality */
enum ec_led_colors br_color;
#if DT_HAS_COMPAT_STATUS_OKAY(COMPAT_GPIO_LED)
/* Array of GPIO pins to set to enable particular color */
struct gpio_pin_t *gpio_pins;
#endif
#if DT_HAS_COMPAT_STATUS_OKAY(COMPAT_PWM_LED)
/* Array of PWM pins to set to enable particular color */
struct pwm_pin_t *pwm_pins;
#endif
/* Number of pins per color */
uint8_t pins_count;
};
/**
* Set LED color using color enum
*
* @param color LED Color to enable
* @param led_id LED ID to set the color for
*/
void led_set_color(enum led_color color, enum ec_led_id led_id);
/**
* Set LED color using pins node
*
* @param *pins_node Pins node to enable the color corresponding
* to the node.
*/
void led_set_color_with_node(const struct led_pins_node_t *pins_node);
#ifdef TEST_BUILD
const struct led_pins_node_t *led_get_node(enum led_color color,
enum ec_led_id led_id);
enum power_state get_chipset_state(void);
#endif /* TEST_BUILD */
#endif /* __CROS_EC_LED_H__ */
|
