1 /*
2 * Copyright (c) 2020-2022 Huawei Device 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 #include "ohos_init.h"
19 #include "cmsis_os2.h"
20 #include "iot_gpio.h"
21
22 #define LED_INTERVAL_TIME_US 300000
23 #define LED_TASK_STACK_SIZE 512
24 #define LED_TASK_PRIO 25
25 #define LED_TEST_GPIO 9 // for hispark_pegasus
26
27 enum LedState {
28 LED_ON = 0,
29 LED_OFF,
30 LED_SPARK,
31 };
32
33 enum LedState g_ledState = LED_SPARK;
34
LedTask(const char * arg)35 static void *LedTask(const char *arg)
36 {
37 (void)arg;
38 switch (g_ledState) {
39 case LED_ON:
40 IoTGpioSetOutputVal(LED_TEST_GPIO, 1);
41 usleep(LED_INTERVAL_TIME_US);
42 break;
43 case LED_OFF:
44 IoTGpioSetOutputVal(LED_TEST_GPIO, 0);
45 usleep(LED_INTERVAL_TIME_US);
46 break;
47 case LED_SPARK:
48 IoTGpioSetOutputVal(LED_TEST_GPIO, 0);
49 usleep(LED_INTERVAL_TIME_US);
50 IoTGpioSetOutputVal(LED_TEST_GPIO, 1);
51 usleep(LED_INTERVAL_TIME_US);
52 break;
53 default:
54 usleep(LED_INTERVAL_TIME_US);
55 break;
56 }
57
58 return NULL;
59 }
60
LedExampleEntry(void)61 static void LedExampleEntry(void)
62 {
63 osThreadAttr_t attr;
64
65 IoTGpioInit(LED_TEST_GPIO);
66 IoTGpioSetDir(LED_TEST_GPIO, IOT_GPIO_DIR_OUT);
67
68 attr.name = "LedTask";
69 attr.attr_bits = 0U;
70 attr.cb_mem = NULL;
71 attr.cb_size = 0U;
72 attr.stack_mem = NULL;
73 attr.stack_size = LED_TASK_STACK_SIZE;
74 attr.priority = LED_TASK_PRIO;
75
76 if (osThreadNew((osThreadFunc_t)LedTask, NULL, &attr) == NULL) {
77 printf("[LedExample] Failed to create LedTask!\n");
78 }
79 }
80
81 SYS_RUN(LedExampleEntry);
82