1 /*
2 * Copyright (c) 2022 HiSilicon (Shanghai) Technologies CO., LIMITED.
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 "wifi_device.h"
17 #include "cmsis_os2.h"
18
19 #include "lwip/netifapi.h"
20 #include "lwip/api_shell.h"
21 #include "net_params.h"
22
PrintLinkedInfo(WifiLinkedInfo * info)23 static void PrintLinkedInfo(WifiLinkedInfo* info)
24 {
25 int ret = 0;
26
27 if (!info) {
28 return;
29 }
30
31 static char macAddress[32] = {0};
32 unsigned char* mac = info->bssid;
33 if (snprintf_s(macAddress, sizeof(macAddress) + 1, sizeof(macAddress), "%02X:%02X:%02X:%02X:%02X:%02X",
34 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]) < 0) { /* mac地址从0,1,2,3,4,5位 */
35 return;
36 }
37 }
38
39 static volatile int g_connected = 0;
40
OnWifiConnectionChanged(int state,WifiLinkedInfo * info)41 static void OnWifiConnectionChanged(int state, WifiLinkedInfo* info)
42 {
43 if (!info) return;
44
45 printf("%s %d, state = %d, info = \r\n", __FUNCTION__, __LINE__, state);
46 PrintLinkedInfo(info);
47
48 if (state == WIFI_STATE_AVAILABLE) {
49 g_connected = 1;
50 } else {
51 g_connected = 0;
52 }
53 }
54
OnWifiScanStateChanged(int state,int size)55 static void OnWifiScanStateChanged(int state, int size)
56 {
57 printf("%s %d, state = %X, size = %d\r\n", __FUNCTION__, __LINE__, state, size);
58 }
59
60 static WifiEvent g_defaultWifiEventListener = {
61 .OnWifiConnectionChanged = OnWifiConnectionChanged,
62 .OnWifiScanStateChanged = OnWifiScanStateChanged
63 };
64
65 static struct netif* g_iface = NULL;
66
67 err_t netifapi_set_hostname(struct netif *netif, char *hostname, u8_t namelen);
68 #define SSID_LEN (2)
69 #define PSK_LEN (9)
ConnectToHotspot(void)70 int ConnectToHotspot(void)
71 {
72 WifiDeviceConfig config = {0};
73
74 // 准备AP的配置参数
75 strcpy_s(config.ssid, SSID_LEN, PARAM_HOTSPOT_SSID);
76 strcpy_s(config.preSharedKey, PSK_LEN, PARAM_HOTSPOT_PSK);
77 config.securityType = PARAM_HOTSPOT_TYPE;
78
79 osDelay(10); /* 延时10ms */
80 WifiErrorCode errCode;
81 int netId = -1;
82
83 errCode = RegisterWifiEvent(&g_defaultWifiEventListener);
84 printf("RegisterWifiEvent: %d\r\n", errCode);
85
86 errCode = EnableWifi();
87 printf("EnableWifi: %d\r\n", errCode);
88
89 errCode = AddDeviceConfig(&config, &netId);
90 printf("AddDeviceConfig: %d\r\n", errCode);
91
92 g_connected = 0;
93 errCode = ConnectTo(netId);
94 printf("ConnectTo(%d): %d\r\n", netId, errCode);
95
96 while (!g_connected) { // wait until connect to AP
97 osDelay(10); /* 持续10ms去连接AP */
98 }
99 printf("g_connected: %d\r\n", g_connected);
100
101 g_iface = netifapi_netif_find("wlan0");
102 if (g_iface) {
103 char* hostname = "hispark";
104 err_t ret = netifapi_set_hostname(g_iface, hostname, strlen(hostname));
105 printf("netifapi_set_hostname: %d\r\n", ret);
106
107 ret = netifapi_dhcp_start(g_iface);
108 printf("netifapi_dhcp_start: %d\r\n", ret);
109
110 osDelay(100); // wait DHCP server give me IP 100
111 #if 1
112 ret = netifapi_netif_common(g_iface, dhcp_clients_info_show, NULL);
113 printf("netifapi_netif_common: %d\r\n", ret);
114 #else
115 #endif
116 }
117 return netId;
118 }
119
DisconnectWithHotspot(int netId)120 void DisconnectWithHotspot(int netId)
121 {
122 if (g_iface) {
123 err_t ret = netifapi_dhcp_stop(g_iface);
124 printf("netifapi_dhcp_stop: %d\r\n", ret);
125 }
126
127 WifiErrorCode errCode = Disconnect(); // disconnect with your AP
128 printf("Disconnect: %d\r\n", errCode);
129
130 errCode = UnRegisterWifiEvent(&g_defaultWifiEventListener);
131 printf("UnRegisterWifiEvent: %d\r\n", errCode);
132
133 RemoveDevice(netId); // remove AP config
134 printf("RemoveDevice: %d\r\n", errCode);
135
136 errCode = DisableWifi();
137 printf("DisableWifi: %d\r\n", errCode);
138 }