1 /*
2 * Copyright (C) 2022 HiHope Open Source Organization .
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http:// www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 *
14 * limitations under the License.
15 */
16
17 #include <stdio.h>
18 #include <unistd.h>
19
20 #include "ohos_init.h"
21 #include "cmsis_os2.h"
22 #include "wifiiot_gpio.h"
23 #include "wifiiot_gpio_ex.h"
24 #include "wifiiot_watchdog.h"
25 #include "wifiiot_pwm.h"
26
27 #define ATTR.STACK_SIZE 1024
28 #define FOUR 4
29 #define THREE 3
30 #define TWENTY 20
31 #define FORTY 40
32 #define ONE_HUNDRED 100
33 #define TWO_HUNDRED 200
34 #define ONE_THOUSAND 1000
35
36 static int g_ledStates[3] = {0, 0, 0};
37 static int g_currentBright = 0;
38 static int g_beepState = 0;
39
TrafficLightTask(const char * arg)40 static void *TrafficLightTask(const char *arg)
41 {
42 (void)arg;
43
44 printf("TrafficLightTask start!\r\n");
45 WifiIotGpioIdx pins[] = {WIFI_IOT_GPIO_IDX_10, WIFI_IOT_GPIO_IDX_11, WIFI_IOT_GPIO_IDX_12};
46 for (int i = 0; i < FOUR; i++) {
47 for (unsigned int j = 0; j < THREE; j++) {
48 GpioSetOutputVal(pins[j], WIFI_IOT_GPIO_VALUE1);
49 usleep(TWO_HUNDRED*ONE_THOUSAND);
50
51 GpioSetOutputVal(pins[j], WIFI_IOT_GPIO_VALUE0);
52 usleep(ONE_HUNDRED*ONE_THOUSAND);
53 }
54 }
55
56 while (1) {
57 for (unsigned int j = 0; j < THREE; j++) {
58 GpioSetOutputVal(pins[j], g_ledStates[j]);
59 }
60 if (g_beepState) {
61 PwmStart(WIFI_IOT_PWM_PORT_PWM0, TWENTY*ONE_THOUSAND, FORTY*ONE_THOUSAND);
62 } else {
63 PwmStop(WIFI_IOT_PWM_PORT_PWM0);
64 }
65 }
66
67 return NULL;
68 }
69
OnButtonPressed(char * arg)70 static void OnButtonPressed(char *arg)
71 {
72 (void) arg;
73 for (int i = 0; i < THREE; i++) {
74 if (i == g_currentBright) {
75 g_ledStates[i] = 1;
76 } else {
77 g_ledStates[i] = 0;
78 }
79 }
80 g_currentBright++;
81 if (g_currentBright == THREE) {
82 g_currentBright = 0;
83 }
84
85 g_beepState = !g_beepState;
86 }
87
StartTrafficLightTask(void)88 static void StartTrafficLightTask(void)
89 {
90 osThreadAttr_t attr;
91
92 GpioInit();
93 IoSetFunc(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_IO_FUNC_GPIO_10_GPIO);
94 GpioSetDir(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_GPIO_DIR_OUT);
95
96 IoSetFunc(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_IO_FUNC_GPIO_11_GPIO);
97 GpioSetDir(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_GPIO_DIR_OUT);
98
99 IoSetFunc(WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_IO_FUNC_GPIO_12_GPIO);
100 GpioSetDir(WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_GPIO_DIR_OUT);
101
102 IoSetFunc(WIFI_IOT_IO_NAME_GPIO_8, WIFI_IOT_IO_FUNC_GPIO_8_GPIO);
103 GpioSetDir(WIFI_IOT_IO_NAME_GPIO_8, WIFI_IOT_GPIO_DIR_IN);
104 IoSetPull(WIFI_IOT_IO_NAME_GPIO_8, WIFI_IOT_IO_PULL_UP);
105 GpioRegisterIsrFunc(WIFI_IOT_IO_NAME_GPIO_8, WIFI_IOT_INT_TYPE_EDGE, WIFI_IOT_GPIO_EDGE_FALL_LEVEL_LOW,
106 OnButtonPressed, NULL);
107
108 IoSetFunc(WIFI_IOT_IO_NAME_GPIO_9, WIFI_IOT_IO_FUNC_GPIO_9_PWM0_OUT);
109 GpioSetDir(WIFI_IOT_IO_NAME_GPIO_9, WIFI_IOT_GPIO_DIR_OUT);
110 PwmInit(WIFI_IOT_PWM_PORT_PWM0);
111
112 WatchDogDisable();
113
114 attr.name = "TrafficLightTask";
115 attr.attr_bits = 0U;
116 attr.cb_mem = NULL;
117 attr.cb_size = 0U;
118 attr.stack_mem = NULL;
119 attr.stack_size = ATTR.STACK_SIZE;
120 attr.priority = osPriorityNormal;
121
122 if (osThreadNew((osThreadFunc_t)TrafficLightTask, NULL, &attr) == NULL) {
123 printf("[LedExample] Failed to create TrafficLightTask!\n");
124 }
125 }
126
127 APP_FEATURE_INIT(StartTrafficLightTask);