1 /*
2 * Copyright (c) 2020 Nanjing Xiaoxiongpai Intelligent Technology Co., Ltd.
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 * limitations under the License.
14 */
15
16 #include <stdio.h>
17 #include <unistd.h>
18
19 #include "cmsis_os2.h"
20 #include "iot_gpio.h"
21 #include "iot_gpio_ex.h"
22 #include "ohos_init.h"
23
24 #define LED_GPIO 2
25 #define BUTTON_F1_GPIO 11
26 #define BUTTON_F2_GPIO 12
27
28 /**
29 * @brief Callback for F1 key
30 *
31 */
F1Pressed(char * arg)32 static void F1Pressed(char *arg)
33 {
34 (void)arg;
35 IoTGpioSetOutputVal(LED_GPIO, 1);
36 }
37
38 /**
39 * @brief Callback for F2 key
40 *
41 */
F2Pressed(char * arg)42 static void F2Pressed(char *arg)
43 {
44 (void)arg;
45 IoTGpioSetOutputVal(LED_GPIO, 0);
46 }
47
48 /**
49 * @brief Main Entry of the Button Example
50 *
51 */
ButtonExampleEntry(void)52 static void ButtonExampleEntry(void)
53 {
54 // init gpio of LED
55 IoTGpioInit(LED_GPIO);
56 IoTGpioSetDir(LED_GPIO, IOT_GPIO_DIR_OUT);
57
58 // init gpio of F1 key and set it as the falling edge to trigger interrupt
59 IoTGpioInit(BUTTON_F1_GPIO);
60 IoTGpioSetFunc(BUTTON_F1_GPIO, IOT_GPIO_FUNC_GPIO_11_GPIO);
61 IoTGpioSetDir(BUTTON_F1_GPIO, IOT_GPIO_DIR_IN);
62 IoTGpioSetPull(BUTTON_F1_GPIO, IOT_GPIO_PULL_UP);
63 IoTGpioRegisterIsrFunc(BUTTON_F1_GPIO, IOT_INT_TYPE_EDGE, IOT_GPIO_EDGE_FALL_LEVEL_LOW, F1Pressed, NULL);
64
65 // init gpio of F2 key and set it as the falling edge to trigger interrupt
66 IoTGpioInit(BUTTON_F2_GPIO);
67 IoTGpioSetFunc(BUTTON_F2_GPIO, IOT_GPIO_FUNC_GPIO_12_GPIO);
68 IoTGpioSetDir(BUTTON_F2_GPIO, IOT_GPIO_DIR_IN);
69 IoTGpioSetPull(BUTTON_F2_GPIO, IOT_GPIO_PULL_UP);
70 IoTGpioRegisterIsrFunc(BUTTON_F2_GPIO, IOT_INT_TYPE_EDGE, IOT_GPIO_EDGE_FALL_LEVEL_LOW, F2Pressed, NULL);
71 }
72
73 APP_FEATURE_INIT(ButtonExampleEntry);