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
|
/* 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.
*/
#define DT_DRV_COMPAT cros_pwm_mock
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
#include <zephyr/kernel.h>
#include <zephyr/drivers/pwm.h>
#include "pwm_mock.h"
#define CYCLES_PER_SEC 1000000
struct pwm_mock_data {
uint32_t period_cycles;
uint32_t pulse_cycles;
pwm_flags_t pwm_flags;
};
static int pwm_mock_init(const struct device *dev)
{
return 0;
}
static int pwm_mock_set_cycles(const struct device *dev, uint32_t channel,
uint32_t period_cycles, uint32_t pulse_cycles,
pwm_flags_t flags)
{
struct pwm_mock_data *const data = dev->data;
data->period_cycles = period_cycles;
data->pulse_cycles = pulse_cycles;
data->pwm_flags = flags;
return 0;
}
static int pwm_mock_get_cycles_per_sec(const struct device *dev,
uint32_t channel, uint64_t *cycles)
{
*cycles = CYCLES_PER_SEC;
return 0;
}
int pwm_mock_get_duty(const struct device *dev, uint32_t channel)
{
struct pwm_mock_data *const data = dev->data;
if (data->period_cycles == 0) {
return -EINVAL;
}
return data->pulse_cycles * 100 / data->period_cycles;
}
pwm_flags_t pwm_mock_get_flags(const struct device *dev, uint32_t channel)
{
ARG_UNUSED(channel);
struct pwm_mock_data *const data = dev->data;
return data->pwm_flags;
}
static const struct pwm_driver_api pwm_mock_api = {
.set_cycles = pwm_mock_set_cycles,
.get_cycles_per_sec = pwm_mock_get_cycles_per_sec,
};
#define INIT_PWM_MOCK(inst) \
static struct pwm_mock_data pwm_mock_data##inst; \
DEVICE_DT_INST_DEFINE(inst, &pwm_mock_init, NULL, \
&pwm_mock_data##inst, NULL, PRE_KERNEL_1, \
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, \
&pwm_mock_api);
DT_INST_FOREACH_STATUS_OKAY(INIT_PWM_MOCK)
|
