58 lines
2.1 KiB
Lua
58 lines
2.1 KiB
Lua
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--- 模块功能：wifi扫描功能
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-- 支持wifi热点扫描
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-- @module wifiScan
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-- @author openLuat
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-- @license MIT
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-- @copyright openLuat
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-- @release 2020.5.21
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require"sys"
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module(..., package.seeall)
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local sCbFnc
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--- wifi扫描热点请求
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-- @function cbFnc 扫描到热点返回或者超时未返回的回调函数，回调函数的调用形式为：
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-- cbFnc(result,cnt,info)
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-- result：true或者false，true表示扫描成功，false表示扫描失败或者超时失败
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-- cnt：number类型，表示扫描到的热点个数
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-- info：table或者nil类型；result为false时，为nil；result为true时，表示扫码到的热点mac和信号信息，table类型，例如：
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-- {
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-- ["1a:fe:34:9e:a1:77"] = -63,
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-- ["8c:be:be:2d:cd:e9"] = -81,
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-- ["20:4e:7f:82:c2:c4"] = -70,
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-- }
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-- @number[opt=10000] timeout 等待扫描热点返回的超时时间，单位毫秒，默认为10秒
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-- @usage
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-- wifiScan.request(cbFnc)
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-- wifiScan.request(cbFnc,5000)
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function request(cbFnc,timeout)
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sCbFnc = cbFnc
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sys.timerStart(sCbFnc,timeout or 10000,false)
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wifi.getinfo()
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end
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local function wifiMsg(msg)
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log.info("wifiScan.wifiMsg",msg.cnt,msg.info,sys.timerIsActive(sCbFnc,false))
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if sys.timerIsActive(sCbFnc,false) then
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sys.timerStop(sCbFnc,false)
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local num,info = msg.cnt,msg.info
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if num==0 then
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sCbFnc(false,0)
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else
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--9a0074bdb0e8,183,2;40313cd7b4bb,185,4;828917c49d9a,173,2;8107999c460,175,8;c4b548f863e,160,7;
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log.info("wifi.getinfo",num,info)
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local tInfo,cnt = {},0
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for mac,rssi,channel in string.gmatch(info,"(.-),(.-),(.-);") do
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cnt = cnt+1
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if mac:len()<12 then mac=string.rep("0",12-mac:len())..mac end
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tInfo[mac:sub(1,2)..":"..mac:sub(3,4)..":"..mac:sub(5,6)..":"..mac:sub(7,8)..":"..mac:sub(9,10)..":"..mac:sub(11,12)] = tonumber(rssi)
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end
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sCbFnc(true,cnt,tInfo)
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end
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end
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end
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--注册core上报的rtos.MSG_WIFI消息的处理函数
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rtos.on(rtos.MSG_WIFI,wifiMsg)
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