鸿蒙WiFi AP模式相关的API接口文件路径
foundation/communication/interfaces/kits/wifi_lite/wifiservice/wifi_hotspot_config.h
foundation/communication/interfaces/kits/wifi_lite/wifiservice/wifi_hotspot.h
所使用的API接口有：
| API | 接口说明 |
| WifiErrorCode EnableHotspot(void); | 打开Wifi AP 模式 |
| WifiErrorCode DisableHotspot(void); | 关闭Wifi AP 模式 |
| WifiErrorCode SetHotspotConfig(const HotspotConfig* config); | 设置当前AP热点的配置参数 |
| WifiErrorCode GetHotspotConfig(HotspotConfig* result); | 获取当前AP热点的配置参数 |
| int IsHotspotActive(void); | 查询AP是否已经开启 |
| WifiErrorCode GetStationList(StationInfo* result, unsigned int* size); | 获取接入的设备列表 |
| int GetSignalLevel(int rssi, int band); | 获取信号强度等级 |
| WifiErrorCode SetBand(int band); | 设置当前频段 |
| WifiErrorCode GetBand(int* result); | 获取当前频段 |
Hi3861 SDK的DHCP客户端接口：
| API | 描述 |
| netifapi_netif_find | 按名称查找网络接口 |
| netifapi_dhcp_start | 启动DHCP客户端 |
| netifapi_dhcp_stop | 停止DHCP客户端 |
代码编写
修改D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\BUILD.gn文件
# Copyright (c) 2023 Beijing HuaQing YuanJian Education Technology Co., Ltd
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License. import("//build/lite/config/component/lite_component.gni")lite_component("demo") {features = [#"base_00_helloworld:base_helloworld_example",#"base_01_led:base_led_example",#"base_02_loopkey:base_loopkey_example",#"base_03_irqkey:base_irqkey_example",#"base_04_adc:base_adc_example",#"base_05_pwm:base_pwm_example",#"base_06_ssd1306:base_ssd1306_example",#"kernel_01_task:kernel_task_example",#"kernel_02_timer:kernel_timer_example",#"kernel_03_event:kernel_event_example",#"kernel_04_mutex:kernel_mutex_example",#"kernel_05_semaphore_as_mutex:kernel_semaphore_as_mutex_example",#"kernel_06_semaphore_for_sync:kernel_semaphore_for_sync_example",#"kernel_07_semaphore_for_count:kernel_semaphore_for_count_example",#"kernel_08_message_queue:kernel_message_queue_example","wifi_09_hotspot:wifi_hotspot_example",]
}创建D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\wifi_09_hotspot文件夹
文件夹中创建D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\wifi_09_hotspot\wifi_hotspot_example.c文件D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\wifi_09_hotspot\BUILD.gn文件
# Copyright (c) 2023 Beijing HuaQing YuanJian Education Technology Co., Ltd
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License. static_library("wifi_hotspot_example") {sources = ["wifi_hotspot_example.c"]include_dirs = ["//utils/native/lite/include","//kernel/liteos_m/kal","//foundation/communication/wifi_lite/interfaces/wifiservice",]
}/** Copyright (c) 2020, HiHope Community.** Redistribution and use in source and binary forms, with or without* modification, are permitted provided that the following conditions are met:** 1. Redistributions of source code must retain the above copyright notice, this* list of conditions and the following disclaimer.** 2. Redistributions in binary form must reproduce the above copyright notice,* this list of conditions and the following disclaimer in the documentation* and/or other materials provided with the distribution.** 3. Neither the name of the copyright holder nor the names of its* contributors may be used to endorse or promote products derived from* this software without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/#include <stdio.h>
#include <string.h>
#include <unistd.h>#include "ohos_init.h"
#include "cmsis_os2.h"
#include "wifi_hotspot.h"
#include "lwip/netifapi.h"#define STACK_SIZE 10240
#define AP_SSID "ABCD"
#define AP_SKEY "123456789"
#define IDX_0 0
#define IDX_1 1
#define IDX_2 2
#define IDX_3 3
#define IDX_4 4
#define IDX_5 5
#define DELAY_TICKS_10 (10)
#define DELAY_TICKS_100 (100)
#define COUNTER (60)
#define CH_NUM (7)static volatile int g_hotspotStarted = 0;static void OnHotspotStateChanged(int state)
{printf("OnHotspotStateChanged: %d.\r\n", state);if (state == WIFI_HOTSPOT_ACTIVE) {g_hotspotStarted = 1;} else {g_hotspotStarted = 0;}
}static volatile int g_joinedStations = 0;static void PrintStationInfo(StationInfo* info)
{if (!info) return;static char macAddress[32] = {0};unsigned char* mac = info->macAddress;// int ret = snprintf(macAddress, sizeof(macAddress), "%02X:%02X:%02X:%02X:%02X:%02X",int ret = snprintf_s(macAddress, sizeof(macAddress), sizeof(macAddress) - 1, "%02X:%02X:%02X:%02X:%02X:%02X",mac[IDX_0], mac[IDX_1], mac[IDX_2], mac[IDX_3], mac[IDX_4], mac[IDX_5]);if (ret < 0) {return;}printf(" PrintStationInfo: mac=%s, reason=%d.\r\n", macAddress, info->disconnectedReason);
}static void OnHotspotStaJoin(StationInfo* info)
{g_joinedStations++;PrintStationInfo(info);printf("+OnHotspotStaJoin: active stations = %d.\r\n", g_joinedStations);
}static void OnHotspotStaLeave(StationInfo* info)
{g_joinedStations--;PrintStationInfo(info);printf("-OnHotspotStaLeave: active stations = %d.\r\n", g_joinedStations);
}WifiEvent g_defaultWifiEventListener = {.OnHotspotStaJoin = OnHotspotStaJoin,.OnHotspotStaLeave = OnHotspotStaLeave,.OnHotspotStateChanged = OnHotspotStateChanged,
};static struct netif* g_iface = NULL;int StartHotspot(const HotspotConfig* config)
{WifiErrorCode errCode = WIFI_SUCCESS;errCode = RegisterWifiEvent(&g_defaultWifiEventListener);printf("RegisterWifiEvent: %d\r\n", errCode);errCode = SetHotspotConfig(config);printf("SetHotspotConfig: %d\r\n", errCode);g_hotspotStarted = 0;errCode = EnableHotspot();printf("EnableHotspot: %d\r\n", errCode);while (!g_hotspotStarted) {osDelay(DELAY_TICKS_10);}printf("g_hotspotStarted = %d.\r\n", g_hotspotStarted);g_iface = netifapi_netif_find("ap0");if (g_iface) {ip4_addr_t ipaddr;ip4_addr_t gateway;ip4_addr_t netmask;IP4_ADDR(&ipaddr, 192, 168, 1, 1); /* input your IP for example: 192 168 1 1 */IP4_ADDR(&gateway, 192, 168, 1, 1); /* input your gateway for example: 192 168 1 1 */IP4_ADDR(&netmask, 255, 255, 255, 0); /* input your netmask for example: 255 255 255 0 */err_t ret = netifapi_netif_set_addr(g_iface, &ipaddr, &netmask, &gateway);printf("netifapi_netif_set_addr: %d\r\n", ret);ret = netifapi_dhcps_stop(g_iface); // 海思扩展的HDCP服务接口printf("netifapi_dhcps_stop: %d\r\n", ret);ret = netifapi_dhcps_start(g_iface, 0, 0); // 海思扩展的HDCP服务接口printf("netifapi_dhcp_start: %d\r\n", ret);}return errCode;
}void StopHotspot(void)
{if (g_iface) {err_t ret = netifapi_dhcps_stop(g_iface); // 海思扩展的HDCP服务接口printf("netifapi_dhcps_stop: %d\r\n", ret);}WifiErrorCode errCode = UnRegisterWifiEvent(&g_defaultWifiEventListener);printf("UnRegisterWifiEvent: %d\r\n", errCode);errCode = DisableHotspot();printf("EnableHotspot: %d\r\n", errCode);
}static void WifiHotspotTask(void)
{WifiErrorCode errCode;HotspotConfig config = {0};// strcpy(config.ssid, "ABCD");// strcpy(config.preSharedKey, "12345678");strcpy_s(config.ssid, WIFI_MAX_SSID_LEN, AP_SSID);strcpy_s(config.preSharedKey, WIFI_MAX_KEY_LEN, AP_SKEY);config.securityType = WIFI_SEC_TYPE_PSK;config.band = HOTSPOT_BAND_TYPE_2G;config.channelNum = CH_NUM;osDelay(DELAY_TICKS_10);printf("starting AP ...\r\n");errCode = StartHotspot(&config);printf("StartHotspot: %d\r\n", errCode);int timeout = COUNTER;while (timeout--) {printf("After %d seconds Ap will turn off!\r\n", timeout);osDelay(DELAY_TICKS_100);}printf("stop AP ...\r\n");StopHotspot();printf("stop AP ...\r\n");
}static void WifiHotspotDemo(void)
{osThreadAttr_t attr;attr.name = "WifiHotspotTask";attr.attr_bits = 0U;attr.cb_mem = NULL;attr.cb_size = 0U;attr.stack_mem = NULL;attr.stack_size = STACK_SIZE;attr.priority = osPriorityNormal;if (osThreadNew(WifiHotspotTask, NULL, &attr) == NULL) {printf("[WifiHotspotDemo] Falied to create WifiHotspotTask!\n");}
}APP_FEATURE_INIT(WifiHotspotDemo);
使用build，编译成功后，使用upload进行烧录。
---- 已打开串行端口 COM11 ----
ready to OS start
sdk ver:Hi3861V100R001C00SPC025 2020-09-03 18:10:00
formatting spiffs...
FileSystem mount ok.
wifi init success!
hilog will init.hiview init success.
starting AP ...
RegisterWifiEvent: 0
SetHotspotConfig: 0
OnHotspotStateChanged: 1.
EnableHotspot: 0
g_hotspotStarted = 1.
netifapi_netif_set_addr: 0
netifapi_dhcps_stop: 0
netifapi_dhcp_start: 0
StartHotspot: 0
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+NOTICE:STA CONNECTEDPrintStationInfo: mac=76:06:CF:47:79:B0, reason=0.
+OnHotspotStaJoin: active stations = 1.
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stop AP ...
netifapi_dhcps_stop: 0
UnRegisterWifiEvent: 0
+NOTICE:STA DISCONNECTED
EnableHotspot: 0
stop AP ...