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
|
/*
* Generic GPIO led
*
* Copyright (C) 2019 - 2020 Andy Green <andy@warmcat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "private-lib-core.h"
#include "drivers/led/private-lib-drivers-led.h"
#if defined(LWS_PLAT_TIMER_CB)
static LWS_PLAT_TIMER_CB(lws_led_timer_cb, th)
{
lws_led_state_t *lcs = LWS_PLAT_TIMER_CB_GET_OPAQUE(th);
lws_seq_timer_handle(lcs);
}
#endif
struct lws_led_state *
lws_led_gpio_create(const lws_led_ops_t *led_ops)
{
lws_led_gpio_controller_t *lgc = (lws_led_gpio_controller_t *)led_ops;
/*
* We allocate the main state object, and a 3 x seq dynamic footprint
* for each led, since it may be sequencing the transition between two
* other sequences.
*/
lws_led_state_t *lcs = lws_zalloc(sizeof(lws_led_state_t) +
(lgc->count_leds * sizeof(lws_led_state_chs_t)),
__func__);
int n;
if (!lcs)
return NULL;
lcs->controller = lgc;
#if defined(LWS_PLAT_TIMER_CREATE)
lcs->timer = LWS_PLAT_TIMER_CREATE("leds",
LWS_LED_SEQUENCER_UPDATE_INTERVAL_MS, 1, lcs,
(TimerCallbackFunction_t)lws_led_timer_cb);
if (!lcs->timer)
return NULL;
#endif
for (n = 0; n < lgc->count_leds; n++) {
const lws_led_gpio_map_t *map = &lgc->led_map[n];
if (map->pwm_ops) {
lgc->gpio_ops->mode(map->gpio, LWSGGPIO_FL_READ);
lgc->gpio_ops->set(map->gpio, 0);
} else {
lgc->gpio_ops->mode(map->gpio, LWSGGPIO_FL_WRITE);
lgc->gpio_ops->set(map->gpio,
!lgc->led_map[n].active_level);
}
}
return lcs;
}
void
lws_led_gpio_destroy(struct lws_led_state *lcs)
{
#if defined(LWS_PLAT_TIMER_DELETE)
LWS_PLAT_TIMER_DELETE(lcs->timer);
#endif
lws_free(lcs);
}
int
lws_led_gpio_lookup(const struct lws_led_ops *lo, const char *name)
{
const lws_led_gpio_controller_t *lgc = (lws_led_gpio_controller_t *)lo;
int n;
for (n = 0; n < lgc->count_leds; n++)
if (!strcmp(name, lgc->led_map[n].name))
return n;
return -1;
}
void
lws_led_gpio_intensity(const struct lws_led_ops *lo, const char *name,
lws_led_intensity_t inten)
{
const lws_led_gpio_controller_t *lgc = (lws_led_gpio_controller_t *)lo;
int idx = lws_led_gpio_lookup(lo, name);
const lws_led_gpio_map_t *map;
if (idx < 0)
return;
map = &lgc->led_map[idx];
if (map->pwm_ops)
map->pwm_ops->intensity(map->pwm_ops, map->gpio, inten);
else
lgc->gpio_ops->set(map->gpio,
(!!map->active_level) ^ !(inten & 0x8000));
}
|
