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
|
/* 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.
*/
#define DT_DRV_COMPAT cros_ec_pwm_leds
#include <string.h>
#include <devicetree.h>
#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
#include "led_pwm.h"
#include "pwm.h"
BUILD_ASSERT(DT_NUM_INST_STATUS_OKAY(cros_ec_pwm_leds) <= 1,
"Multiple CrOS EC PWM LED instances defined");
BUILD_ASSERT(DT_INST_PROP_LEN(0, leds) <= 2,
"Unsupported number of LEDs defined");
#define PWM_CHANNEL_BY_IDX(node_id, prop, idx, led_ch) \
PWM_CHANNEL(DT_PWMS_CTLR_BY_IDX( \
DT_PHANDLE_BY_IDX(node_id, prop, idx), led_ch))
#define PWM_LED_INIT(node_id, prop, idx) \
[PWM_LED##idx] = { \
.ch0 = PWM_CHANNEL_BY_IDX(node_id, prop, idx, 0), \
.ch1 = PWM_CHANNEL_BY_IDX(node_id, prop, idx, 1), \
.ch2 = PWM_CHANNEL_BY_IDX(node_id, prop, idx, 2), \
.enable = &pwm_enable, \
.set_duty = &pwm_set_duty, \
},
struct pwm_led pwm_leds[] = {
DT_INST_FOREACH_PROP_ELEM(0, leds, PWM_LED_INIT)
};
struct pwm_led_color_map led_color_map[EC_LED_COLOR_COUNT] = {
[EC_LED_COLOR_RED] = DT_INST_PROP(0, color_map_red),
[EC_LED_COLOR_GREEN] = DT_INST_PROP(0, color_map_green),
[EC_LED_COLOR_BLUE] = DT_INST_PROP(0, color_map_blue),
[EC_LED_COLOR_YELLOW] = DT_INST_PROP(0, color_map_yellow),
[EC_LED_COLOR_WHITE] = DT_INST_PROP(0, color_map_white),
[EC_LED_COLOR_AMBER] = DT_INST_PROP(0, color_map_amber),
};
BUILD_ASSERT(DT_INST_PROP_LEN(0, brightness_range) == EC_LED_COLOR_COUNT,
"brightness_range must have exactly EC_LED_COLOR_COUNT values");
static const uint8_t dt_brigthness_range[EC_LED_COLOR_COUNT] = DT_INST_PROP(
0, brightness_range);
void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
/* led_id is ignored, same ranges for all LEDs */
memcpy(brightness_range, dt_brigthness_range,
sizeof(dt_brigthness_range));
}
#endif /* DT_HAS_COMPAT_STATUS_OKAY */
|
