iw命令简介
iw是一种新的基于nl80211的用于无线设备的CLI配置实用程序。它支持最近已添加到内核 所有新的驱动程序。采用无线扩展接口的旧工具iwconfig已被废弃，强烈建议切换到 iw 和 nl80211。
像Linux内核的其余部分，iw 仍处于开发阶段。功能被随时添加。iw 的唯一文档就是此页 和“iw help”的输出。请帮助扩大这个页面。
实例
# iw help # 帮助 # iw list # 获得所有设备的功能，如带宽信息（2.4GHz，和5GHz），和802.11n的信息 # iw dev wlan0 scan # 扫描 # iw event # 监听事件 # iw dev wlan0 link # 获得链路状态 # iw wlan0 connect foo # 连接到已禁用加密的AP，这里它的SSID是foo # iw wlan0 connect foo 2432 # 假设你有两个AP SSID 都是 foo，你知道你要连接的是 在 2432 频道 # iw wlan0 connect foo keys 0:abcde d:1:0011223344 # 连接到使用WEP的AP # iw dev wlan1 station dump # 获取station 的统计信息 # iw dev wlan1 station get # 获得station对应的peer统计信息 # iw wlan0 set bitrates legacy-2.4 12 18 24 # 修改传输比特率 # iw dev wlan0 set bitrates mcs-5 4 # 修改tx HT MCS的比特率 # iw dev wlan0 set bitrates mcs-2.4 10 # iw dev wlan0 set bitrates mcs-5 # 清除所有 tx 比特率和设置的东西来恢复正常 # iw dev set txpower [] #设置传输功率 # iw phy set txpower [] #设置传输功率 # iw dev wlan0 set power_save on #设置省电模式 # iw dev wlan0 get power_save #查询当前的节电设定 # iw phy phy0 interface add moni0 type monitor #添加一个 monitor 接口
通过以上实例，可以用c来实现wifi扫描，连接等操作，以下代码摘自100ask
static void wifi_list_event_handler(lv_event_t * e);
// 1 : 匹配到字符串
// 0 ：匹配不到字符串
static bool shell_exec_handle(const char * cmd, const char * result)
{
FILE * fp;
char buffer[512] = {0};
char *str_ret;
bool ret = 0;
fp = popen(cmd, "r");
while (fgets(buffer, 512, fp) != NULL)
{
printf("%s", buffer);
if (result != NULL)
{
str_ret = strstr(buffer, result);
if (str_ret != NULL)
{
printf("str_ret != NULL: %s\n", str_ret);
ret = 1;
}
}
}
if (pclose(fp) == -1)
{
printf("close failed!");
//exit(1); // return -1;
ret = 0;
}
return ret;
}
static void shell_opt_handle(const char * cmd, char * result)
{
FILE * fp;
char buffer[512] = {0};
//char str_ret_buff[1024] = {0};
fp = popen(cmd, "r");
while (fgets(buffer, 512, fp) != NULL)
{
printf("%s", buffer);
strcat(result, buffer);
}
if (pclose(fp) == -1)
{
printf("close failed!");
//return NULL;
//exit(1); // return -1;
}
//printf("[shell_opt_handle]str_ret_buff: %s\n", str_ret_buff);
//return str_ret_buff;
}
#if 1
// 定时扫描热点任务
static void lv_task_wlan_scan(lv_timer_t * task)
{
static int count = 0;
lv_obj_t * btn;
char res_buffer[1024] = {0};
char *token;
printf("\n\n------------------lv_task_wlan_scan---------------------\n\n");
if (count > 0)
{
shell_opt_handle("iw dev wlan0 scan | grep SSID: | awk '{print $2}'", res_buffer);
if (strlen(res_buffer) <= 1)
{
printf("\n\n!!!!!!!!!!!!!!!!!!!!!!!!!!ERROR]Buffer NULL!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n");
}
lv_obj_clean(g_wifi_scan_list); // 清空列表，删除对象的所有子项（但不是对象本身）
lv_list_add_text(g_wifi_scan_list, "OTHER NETWORKS");
token = strtok(res_buffer, "\n");
do{
btn = lv_list_add_btn(g_wifi_scan_list, LV_SYMBOL_WIFI, token);
lv_obj_add_event_cb(btn, wifi_list_event_handler, LV_EVENT_CLICKED, NULL);
}while((token = strtok(NULL, "\n")));
memset(res_buffer, 0, sizeof(res_buffer)); //清空字符串数组
}
else
{
count = 2;
}
}
#endif
// 1 : 正常
// 0 ：异常
static bool open_wifi(void)
{
if(shell_exec_handle("ifconfig wlan0 up", "SIOCGIFFLAGS") == 1)
return 0;
#if USE_TIMER_UPDATE_LIST
// 如果未创建则创建，如果已经创建过了直接恢复定时器
if(g_wifi_scan_task_handle == NULL)
{
printf("\n\n------------------g_wifi_scan_task_handle---------------------\n\n");
g_wifi_scan_task_handle = lv_timer_create(lv_task_wlan_scan, 20000, NULL); // 10秒定时器任务
if(g_wifi_scan_task_handle) lv_timer_ready(g_wifi_scan_task_handle); // 就绪，马上开始
}
else
{
if(g_wifi_scan_task_handle) lv_timer_resume(g_wifi_scan_task_handle);
}
#endif
return 1;
}
// wifi 开关
static void switch_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
lv_obj_t * btn = lv_event_get_user_data(e);
if(code == LV_EVENT_VALUE_CHANGED) {
//printf("State: %s\n", lv_obj_has_state(obj, LV_STATE_CHECKED) ? "On" : "Off");
if (lv_obj_has_state(obj, LV_STATE_CHECKED))
{
//open_wifi();
if (1 == open_wifi());
{
lv_obj_clear_state(btn, LV_STATE_DISABLED);
lv_event_send(btn, LV_EVENT_CLICKED, NULL);
}
}
else
{
lv_obj_add_state(btn, LV_STATE_DISABLED);
#if USE_TIMER_UPDATE_LIST
if(g_wifi_scan_task_handle)
lv_timer_pause(g_wifi_scan_task_handle); // 暂停
if (g_wifi_scan_list)
lv_obj_clean(g_wifi_scan_list); // 清空列表，删除对象的所有子项（但不是对象本身）
#endif
}
}
}
// 刷新wifi列表
static void refresh_wifi_list_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
//lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_CLICKED) {
lv_obj_t * btn;
char res_buffer[1024] = {0};
char *token;
if(g_wifi_scan_task_handle) lv_timer_pause(g_wifi_scan_task_handle); // 暂停
printf("\n\n------------------lv_task_wlan_scan---------------------\n\n");
shell_opt_handle("iw dev wlan0 scan | grep SSID: | awk '{print $2}'", res_buffer);
if (strlen(res_buffer) <= 1)
{
printf("\n\n!!!!!!!!!!!!!!!!!!!!!!!!!!ERROR]Buffer NULL!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n");
if(g_wifi_scan_task_handle) lv_timer_resume(g_wifi_scan_task_handle); // 恢复定时器任务
return;
}
lv_obj_clean(g_wifi_scan_list); // 清空列表，删除对象的所有子项（但不是对象本身）
lv_list_add_text(g_wifi_scan_list, "OTHER NETWORKS");
token = strtok(res_buffer, "\n");
do{
btn = lv_list_add_btn(g_wifi_scan_list, LV_SYMBOL_WIFI, token);
lv_obj_add_event_cb(btn, wifi_list_event_handler, LV_EVENT_CLICKED, NULL);
}while((token = strtok(NULL, "\n")));
if(g_wifi_scan_task_handle) lv_timer_resume(g_wifi_scan_task_handle); // 恢复定时器任务
}
}
static void ta_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e); // 获取事件代码
lv_obj_t * ta = lv_event_get_target(e); // 获取事件最初指向的对象
lv_obj_t * kb = lv_event_get_user_data(e); // 获取在对象上注册事件时传递的 user_data
// 判断事件类型(当焦点在键盘上时)
if(code == LV_EVENT_FOCUSED) {
//获取输入设备的类型
if(lv_indev_get_type(lv_indev_get_act()) != LV_INDEV_TYPE_KEYPAD) {
lv_keyboard_set_textarea(kb, ta); // 为键盘分配一个文本区域
lv_obj_set_style_max_height(kb, LV_HOR_RES * 2 / 3, 0); // 设置键盘的最高宽度为屏幕高度的一半
lv_obj_align_to(g_wifi_conn_info_panel, kb, LV_ALIGN_OUT_TOP_MID, 0, 0); // 设置对象的高度，当唤出键盘时应该偏移背景
lv_obj_clear_flag(kb, LV_OBJ_FLAG_HIDDEN); // 清除标志
lv_obj_scroll_to_view_recursive(ta, LV_ANIM_OFF); // 滚动到一个对象，直到它在其父对象上可见。对父母的父母做同样的事情，依此类推。即使对象具有嵌套的可滚动父对象，它也会滚动到视图中
}
}
// 判断事件类型(当焦点不在键盘上时)
else if(code == LV_EVENT_DEFOCUSED) {
lv_keyboard_set_textarea(kb, NULL);
lv_obj_center(g_wifi_conn_info_panel);
lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN);
}
// 判断事件类型(当键盘点击确定或取消键)
else if(code == LV_EVENT_READY || code == LV_EVENT_CANCEL) {
lv_obj_center(g_wifi_conn_info_panel);
lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN); // 标志为隐藏对象(使对象隐藏，就像它根本不存在一样)
lv_obj_clear_state(e->target, LV_STATE_FOCUSED); // 删除对象的一种或多种状态。其他状态位将保持不变。
lv_indev_reset(NULL, e->target); // 忘记最后一次点击的对象，使其再次成为可关注的对象
}
}
// mode: 0: 连接历史wifi 1：连接新的wifi
static bool conn_wifi(const char * name, char * passwd, int mode)
{
char cmd_buff[256];
char res_buffer[512] = {0};
int count = 0, overrun = 3;
if (1 == mode)
{
// [0] 重新装载驱动 //TODO
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "rmmod 8723bu.ko && modprobe 8723bu && ifconfig wlan0 up");
shell_exec_handle(cmd_buff, "NULL");
// [1] 配置连接参数
memset(cmd_buff, 0, sizeof(cmd_buff));
// rm /etc/wpa_supplicant.conf && wpa_passphrase Programmers 100asktech >> /etc/wpa_supplicant.conf
lv_snprintf(cmd_buff, sizeof(cmd_buff), "rm /etc/wpa_supplicant.conf && wpa_passphrase %s %s >> /etc/wpa_supplicant.conf", name, passwd);
printf("%s\n", cmd_buff);
shell_exec_handle(cmd_buff, "NULL");
//sleep(1);
// [2] 判断是否后台已经运行 wpa_supplicant (ps | grep "wpa_supplicant")
//memset(cmd_buff, 0, sizeof(cmd_buff));
//lv_snprintf(cmd_buff, sizeof(cmd_buff), "ps | grep \"wpa_supplicant\"", "wpa_supplicant");
//shell_exec_handle(cmd_buff, NULL);
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "killall -9 wpa_supplicant"); // 连接之前先kill掉wpa_supplicant (这里不检查是否已运行wpa_supplicant)
printf("%s\n", cmd_buff);
shell_exec_handle(cmd_buff, "NULL");
//sleep(1);
// [3] 连接wifi设备
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "wpa_supplicant -B -iwlan0 -c /etc/wpa_supplicant.conf");
printf("%s\n", cmd_buff);
shell_exec_handle(cmd_buff, "NULL");
//sleep(1);
// [4] 查看连接状态
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "iw wlan0 link");
while(shell_exec_handle(cmd_buff, "bitrate") == 1)
{
printf("iw wlan0 link: %s\n", cmd_buff);
if (count >= 5)
{
memset(cmd_buff, 0, sizeof(cmd_buff));
// rmmod 8723bu && insmod /lib/modules/4.9.88/extra/8723bu.ko && ifconfig wlan0 up
lv_snprintf(cmd_buff, sizeof(cmd_buff), \
"rmmod 8723bu.ko && modprobe 8723bu &&\
ifconfig wlan0 up && killall wpa_supplicant &&\
wpa_supplicant -B -iwlan0 -c /etc/wpa_supplicant.conf && iw wlan0 link");
count = 0;
continue;
}
if(0 == overrun)
{
LV_LOG_USER("iw wlan0 link fail!");
return 0;
}
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "iw wlan0 link");
count++;
overrun--;
//sleep(1);
}
// [5] 获取ip地址
memset(cmd_buff, 0, sizeof(cmd_buff));
printf("%s\n", cmd_buff);
lv_snprintf(cmd_buff, sizeof(cmd_buff), "udhcpc -i wlan0");
if(1 == shell_exec_handle(cmd_buff, "adding dns"))
printf("\n\nudhcpc -i wlan0 ok!\n\n");
memset(cmd_buff, 0, sizeof(cmd_buff));
}
else if (0 == mode)
{
char ipaddr[16];
char wifi_name[32];
char btn_name[128];
// 查看连接状态
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "ifconfig wlan0");
//if (shell_exec_handle(cmd_buff, "Device not found") != 0)
if (shell_exec_handle(cmd_buff, "information") == 0)
{
memset(wifi_name, 0, sizeof(wifi_name));
memset(ipaddr, 0, sizeof(ipaddr));
memset(btn_name, 0, sizeof(btn_name));
shell_opt_handle("ifconfig wlan0 | grep \"inet \" | awk -F '[:]' '{print $2}' | awk '{print $1}'", ipaddr); // 获取IP地址
shell_opt_handle("cat /etc/wpa_supplicant.conf | grep ssid | awk -F= '{print $2}' | awk -F '[\"]' '{print $2}'", wifi_name); // 获取wifi名称
if((strlen(ipaddr) > 1) && (strlen(wifi_name) > 1))
{
ipaddr[strlen(ipaddr) - 1] = '\0';
wifi_name[strlen(wifi_name) - 1] = '\0';
lv_obj_clean(g_wifi_conn_list); // 清空列表，删除对象的所有子项（但不是对象本身）
//shell_opt_handle("ifconfig wlan0 | grep \"inet \" | awk -F '[:]' '{print $2}' | awk '{print $1}'", ipaddr); // 获取IP地址
//shell_opt_handle("cat /etc/wpa_supplicant.conf | grep ssid | awk -F= '{print $2}' | awk -F '[\"]' '{print $2}'", wifi_name); // 获取wifi名称
lv_snprintf(btn_name, sizeof(btn_name), "%s %s", wifi_name, ipaddr);
lv_list_add_btn(g_wifi_conn_list, LV_SYMBOL_WIFI, btn_name);
return 1;
}
}
// [0] 重新装载驱动 //TODO
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "rmmod 8723bu.ko && modprobe 8723bu && ifconfig wlan0 up && killall -9 wpa_supplicant");
shell_exec_handle(cmd_buff, "NULL");
// 连接wifi设备
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "wpa_supplicant -B -iwlan0 -c /etc/wpa_supplicant.conf");
printf("%s\n", cmd_buff);
shell_exec_handle(cmd_buff, "NULL");
//sleep(1);
// 查看连接状态
memset(cmd_buff, 0, sizeof(cmd_buff));
lv_snprintf(cmd_buff, sizeof(cmd_buff), "iw wlan0 link");
if (shell_exec_handle(cmd_buff, "bitrate") == 0)
{
LV_LOG_USER("iw wlan0 link fail!");
return 0;
}
// [5] 获取ip地址
memset(cmd_buff, 0, sizeof(cmd_buff));
printf("%s\n", cmd_buff);
lv_snprintf(cmd_buff, sizeof(cmd_buff), "udhcpc -i wlan0");
if(1 == shell_exec_handle(cmd_buff, "adding dns"))
{
printf("\n\nudhcpc -i wlan0 ok!\n\n");
}
memset(cmd_buff, 0, sizeof(cmd_buff));
memset(wifi_name, 0, sizeof(wifi_name));
memset(ipaddr, 0, sizeof(ipaddr));
memset(btn_name, 0, sizeof(btn_name));
shell_opt_handle("ifconfig wlan0 | grep \"inet \" | awk -F '[:]' '{print $2}' | awk '{print $1}'", ipaddr); // 获取IP地址
shell_opt_handle("cat /etc/wpa_supplicant.conf | grep ssid | awk -F= '{print $2}' | awk -F '[\"]' '{print $2}'", wifi_name); // 获取wifi名称
if((strlen(ipaddr) > 1) && (strlen(wifi_name) > 1))
{
ipaddr[strlen(ipaddr) - 1] = '\0';
wifi_name[strlen(wifi_name) - 1] = '\0';
lv_obj_clean(g_wifi_conn_list); // 清空列表，删除对象的所有子项（但不是对象本身）
lv_list_add_text(g_wifi_conn_list, "CONNECTED");
lv_snprintf(btn_name, sizeof(btn_name), "%s %s", wifi_name, ipaddr);
lv_list_add_btn(g_wifi_conn_list, LV_SYMBOL_WIFI, btn_name);
}
}
return 1;
}
static void conn_btn_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e); // 获取事件代码类型
lv_obj_t * obj = lv_event_get_target(e); // 获取触发的对象
const char * wifi_name = lv_event_get_user_data(e); // 获取在对象上注册事件时传递的 user_data
if(code == LV_EVENT_CLICKED) {
if(0 == strcmp(wifi_name, "back"))
{
lv_obj_del(g_wifi_conn_info_panel); // 删除对象及其所有子对象
lv_obj_clear_flag(lv_layer_top(), LV_OBJ_FLAG_CLICKABLE); // 清除标志
lv_obj_set_style_bg_opa(lv_layer_top(), LV_OPA_TRANSP, 0); // 设置透明度
if(g_wifi_scan_task_handle) lv_timer_resume(g_wifi_scan_task_handle); // 恢复定时器任务
printf("Back\n");
}
else
{
if(0 == conn_wifi(wifi_name, lv_textarea_get_text(g_pwd_ta), 1))
{
printf("[ERROR] Connetc fail!!!\n");
}
else
{
char ipaddr_buff[16] = {0};
char btn_name[128] = {0};
lv_obj_clean(g_wifi_conn_list); // 清空列表，删除对象的所有子项（但不是对象本身）
lv_list_add_text(g_wifi_conn_list, "CONNECTED");
//shell_opt_handle("ifconfig wlan0 | grep \"inet \" | awk '{print $2}'", ipaddr_buff); // 获取IP地址
shell_opt_handle("ifconfig wlan0 | grep \"inet \" | awk -F '[:]' '{print $2}' | awk '{print $1}'", ipaddr_buff); // 获取IP地址
ipaddr_buff[strlen(ipaddr_buff) - 1] = '\0';
lv_snprintf(btn_name, sizeof(btn_name), "%s %s", wifi_name, ipaddr_buff);
lv_obj_t * btn = lv_list_add_btn(g_wifi_conn_list, LV_SYMBOL_WIFI, btn_name);
lv_obj_add_event_cb(btn, wifi_list_event_handler, LV_EVENT_CLICKED, NULL);
printf("wifi_name: %s, ipaddr_buff: %s\n\n\n\n" ,wifi_name ,ipaddr_buff);
}
lv_obj_del(g_wifi_conn_info_panel); // 删除对象及其所有子对象
lv_obj_clear_flag(lv_layer_top(), LV_OBJ_FLAG_CLICKABLE); // 清除标志
lv_obj_set_style_bg_opa(lv_layer_top(), LV_OPA_TRANSP, 0); // 设置透明度
if(g_wifi_scan_task_handle) lv_timer_resume(g_wifi_scan_task_handle); // 恢复定时器任务
//lv_timer_resume(g_wifi_scan_task_handle); // 恢复定时器任务
printf("%s\n", wifi_name);
//dbus_method_call("net.ask100.lvgl.Main", "/net/ask100/lvgl/Main", "net.ask100.lvgl.Main", "states", 1, getpid());
}
}
}
static void wifi_conn_info(char * wifi_name)
{
lv_obj_add_flag(lv_layer_top(), LV_OBJ_FLAG_CLICKABLE);
lv_obj_set_style_bg_opa(lv_layer_top(), LV_OPA_50, 0);
// 创建键盘
lv_obj_t * kb = lv_keyboard_create(lv_layer_top());
lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN); // 标志为隐藏对象(使对象隐藏，就像它根本不存在一样)
// 主区域布局容器
g_wifi_conn_info_panel = lv_obj_create(lv_layer_top());
lv_obj_set_size(g_wifi_conn_info_panel, LV_PCT(40), LV_PCT(40));
lv_obj_set_layout(g_wifi_conn_info_panel, LV_LAYOUT_FLEX);
lv_obj_set_flex_align(g_wifi_conn_info_panel, LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER);
lv_obj_set_flex_flow(g_wifi_conn_info_panel, LV_FLEX_FLOW_COLUMN);
lv_obj_set_style_pad_all(g_wifi_conn_info_panel, 0, 0);
lv_obj_center(g_wifi_conn_info_panel);
// 输入区域布局容器
lv_obj_t * input_panel = lv_obj_create(g_wifi_conn_info_panel);
lv_obj_set_size(input_panel, 280, 100);
lv_obj_set_style_bg_opa(input_panel, 0, 0);
lv_obj_set_style_border_opa(input_panel, 0, 0);
lv_obj_set_layout(input_panel, LV_LAYOUT_FLEX);
lv_obj_set_flex_flow(input_panel, LV_FLEX_FLOW_COLUMN);
lv_obj_set_style_pad_all(input_panel, 0, 0);
lv_obj_t * pwd_label = lv_label_create(input_panel);
lv_label_set_text(pwd_label, "Password: "); // 为标签设置新文本
g_pwd_ta = lv_textarea_create(input_panel);
lv_textarea_set_one_line(g_pwd_ta, true); // 单行模式
lv_textarea_set_password_mode(g_pwd_ta, true); // 密码模式
//lv_textarea_set_placeholder_text(g_pwd_ta, "Please input wifi password..."); // 设置文本区域的占位符文本(输入框提示文本内容)
lv_obj_align(g_pwd_ta, LV_ALIGN_CENTER, 0, 0); // 更改对象的对齐方式并设置新坐标
lv_obj_add_event_cb(g_pwd_ta, ta_event_cb, LV_EVENT_ALL, kb); // 为对象分配事件及其处理函数
pwd_label = lv_label_create(input_panel);
lv_label_set_long_mode(pwd_label, LV_LABEL_LONG_SCROLL_CIRCULAR); /*Circular scroll*/
lv_obj_set_style_text_font(pwd_label, &lv_font_montserrat_12, 0);
lv_label_set_text(pwd_label, "Please wait for 15s after clicking \"join\"..."); // 为标签设置新文本
// 选择域布局容器
lv_obj_t * opt_panel = lv_obj_create(g_wifi_conn_info_panel);
lv_obj_set_size(opt_panel, 280, 45);
lv_obj_set_style_bg_opa(opt_panel, 0, 0);
lv_obj_set_style_border_opa(opt_panel, 0, 0);
lv_obj_set_layout(opt_panel, LV_LAYOUT_FLEX);
lv_obj_set_flex_align(opt_panel, LV_FLEX_ALIGN_SPACE_EVENLY , LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_CENTER);
lv_obj_set_flex_flow(opt_panel, LV_FLEX_FLOW_ROW);
lv_obj_set_style_pad_all(opt_panel, 0, 0);
// 退出按钮，也可以点击空白区域退出
lv_obj_t * btn_cancel = lv_btn_create(opt_panel);
lv_obj_add_event_cb(btn_cancel, conn_btn_event_handler, LV_EVENT_CLICKED, "back");
//lv_obj_add_event_cb(lv_layer_top(), conn_btn_event_handler, LV_EVENT_CLICKED, "back");
// 连接wifi按钮
lv_obj_t * btn_conn = lv_btn_create(opt_panel);
lv_obj_add_event_cb(btn_conn, conn_btn_event_handler, LV_EVENT_CLICKED, wifi_name); // wifi_name
lv_obj_t * label_conn = lv_label_create(btn_conn);
lv_label_set_text(label_conn, "Join");
lv_obj_center(label_conn);
lv_obj_t * label_cancel = lv_label_create(btn_cancel);
lv_label_set_text(label_cancel, "Back");
lv_obj_center(label_cancel);
}
static void wifi_list_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_CLICKED) {
printf("Clicked: %s\n", lv_list_get_btn_text(g_wifi_scan_list, obj));
if (g_wifi_scan_task_handle != NULL)
lv_timer_pause(g_wifi_scan_task_handle); // 暂停
wifi_conn_info(lv_list_get_btn_text(g_wifi_scan_list, obj));
}
}
void imx6ull_set_wlan_init(void)
{
lv_obj_t * obj_layout;
lv_obj_t * ctr_btn_layout;
static lv_style_t obj_layout_style; // 容器的样式
static lv_style_t ctr_btn_layout_style; // 容器的样式
lv_style_init(&obj_layout_style);
//lv_style_set_pad_all(&obj_layout_style, 0);
//lv_style_set_bg_opa(&obj_layout_style, 0);
//lv_style_set_shadow_opa(&obj_layout_style, 0);
lv_style_set_border_opa(&obj_layout_style, 0);
lv_style_init(&ctr_btn_layout_style);
lv_style_set_pad_all(&ctr_btn_layout_style, 0);
//lv_style_set_bg_opa(&ctr_btn_layout_style, 0);
//lv_style_set_shadow_opa(&ctr_btn_layout_style, 0);
lv_style_set_border_opa(&ctr_btn_layout_style, 0);
/* Layout Init */
obj_layout = lv_obj_create(lv_scr_act());
lv_obj_set_size(obj_layout, LV_PCT(100), LV_PCT(100));
lv_obj_set_layout(obj_layout, LV_LAYOUT_FLEX);
lv_obj_set_style_base_dir(obj_layout, LV_BASE_DIR_RTL, 0);
lv_obj_set_flex_flow(obj_layout, LV_FLEX_FLOW_COLUMN);
lv_obj_center(obj_layout);
lv_obj_add_style(obj_layout, &obj_layout_style, 0);
/* Create title */
lv_obj_t * label_title = lv_label_create(obj_layout);
lv_obj_set_width(label_title, LV_PCT(100));
lv_obj_set_style_text_font(label_title, &lv_font_montserrat_32, 0);
lv_obj_set_style_text_align(label_title, LV_TEXT_ALIGN_CENTER, 0);
//lv_label_set_recolor(label_title, true); /*Enable re-coloring by commands in the text*/
lv_label_set_text(label_title, "Wi-Fi");
lv_obj_align(label_title, LV_ALIGN_CENTER, 0, 0); //lv_obj_center(label_title);
ctr_btn_layout = lv_obj_create(obj_layout);
lv_obj_set_size(ctr_btn_layout, LV_PCT(100), LV_PCT(7));
lv_obj_set_layout(ctr_btn_layout, LV_LAYOUT_FLEX);
lv_obj_set_style_base_dir(ctr_btn_layout, LV_BASE_DIR_LTR, 0);
lv_obj_set_flex_flow(ctr_btn_layout, LV_FLEX_FLOW_ROW);
lv_obj_center(ctr_btn_layout);
lv_obj_add_style(ctr_btn_layout, &ctr_btn_layout_style, 0);
/* Create wifi switch */
lv_obj_t * sw = lv_switch_create(ctr_btn_layout);
lv_obj_t * btn1 = lv_btn_create(ctr_btn_layout);
lv_obj_add_state(btn1, LV_STATE_DISABLED);
lv_obj_add_event_cb(btn1, refresh_wifi_list_event_handler, LV_EVENT_CLICKED, NULL);
lv_obj_t * label = lv_label_create(btn1);
lv_label_set_text(label, LV_SYMBOL_REFRESH" Refresh");
lv_obj_center(label);
lv_obj_add_event_cb(sw, switch_event_handler, LV_EVENT_ALL, btn1);
/*Create wifi connected list*/
g_wifi_conn_list = lv_list_create(obj_layout);
//lv_obj_set_style_text_align(g_wifi_conn_list, LV_TEXT_ALIGN_RIGHT, 0);
lv_obj_set_size(g_wifi_conn_list, LV_PCT(100), LV_PCT(12));
lv_obj_center(g_wifi_conn_list);
/*Add buttons to the list*/
lv_list_add_text(g_wifi_conn_list, "CONNECTED");
//lv_obj_t * btn = lv_list_add_btn(g_wifi_conn_list, LV_SYMBOL_SETTINGS " " LV_SYMBOL_WIFI, "www.100ask.net");
lv_obj_t * btn = lv_list_add_btn(g_wifi_conn_list, LV_SYMBOL_WIFI, "www.100ask.net");
lv_obj_add_event_cb(btn, wifi_list_event_handler, LV_EVENT_CLICKED, NULL);
/*Create wifi scan list*/
g_wifi_scan_list = lv_list_create(obj_layout);
//lv_obj_set_style_text_align(g_wifi_scan_list, LV_TEXT_ALIGN_RIGHT, 0);
lv_obj_set_size(g_wifi_scan_list, LV_PCT(100), LV_PCT(68));
lv_obj_center(g_wifi_scan_list);
lv_list_add_text(g_wifi_scan_list, "OTHER NETWORKS");
#if 1
if(shell_exec_handle("ifconfig wlan0", "Device not found") == 0)
{
open_wifi();
if(conn_wifi(NULL, NULL, 0))
{
lv_obj_add_state(sw, LV_STATE_CHECKED);
lv_obj_clear_state(btn1, LV_STATE_DISABLED);
lv_event_send(btn1, LV_EVENT_CLICKED, NULL);
}
}
#endif
}
#endif /* LV_USE_100ASK_DEMO_GAME_2048 */ 收藏的用户（0） X
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wpa_supplicant配置
无加密：
# Plaintext (no encryption) network ctrl_interface=/var/run/wpa_supplicant network={ ssid="example open network" key_mgmt=NONE }WEP加密
# Static WEP keys ctrl_interface=/var/run/wpa_supplicant network={ ssid="example wep network" key_mgmt=NONE wep_key0="abcde" wep_key1=0102030405 #第二个密钥使用十六进制表示 wep_tx_keyidx=0 #使用第几个密钥 }WEP 使用 EAP-PEAP/MSCHAPv2 验证
# IEEE 802.1X with dynamic WEP keys using EAP-PEAP/MSCHAPv2 ctrl_interface=/var/run/wpa_supplicant network={ ssid="example 802.1x network" key_mgmt=IEEE8021X eap=PEAP phase2="auth=MSCHAPV2" identity="user name" #用户名 password="password" #密码 ca_cert="/etc/cert/ca.pem" }WPA-PSK/TKIP
# WPA-PSK/TKIP ctrl_interface=/var/run/wpa_supplicant network={ ssid="example wpa-psk network" key_mgmt=WPA-PSK proto=WPA pairwise=TKIP group=TKIP psk="secret passphrase" }WPA2-EAP/CCMP
# WPA2-EAP/CCMP using EAP-TLS ctrl_interface=/var/run/wpa_supplicant network={ ssid="example wpa2-eap network" key_mgmt=WPA-EAP proto=WPA2 pairwise=CCMP group=CCMP eap=TLS ca_cert="/etc/cert/ca.pem" private_key="/etc/cert/user.p12" private_key_passwd="PKCS#12 passhrase" }
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