ZHCU921 January   2021 WL1801MOD , WL1805MOD , WL1807MOD , WL1831MOD , WL1835MOD , WL1837MOD

 

  1.   商标
  2. 1 引言
    1. 1.1 本文档中使用的首字母缩写词
  3. 2 对等 (P2P) 模式
    1. 2.1 P2P 设备
      1. 2.1.1 搜索阶段
      2. 2.1.2 协商
      3. 2.1.3 组构建
    2. 2.2 PSP 客户端
    3. 2.3 P2P GO
    4. 2.4 P2P 命令
      1. 2.4.1 P2P 命令详细信息
        1. 2.4.1.1 p2p_find
        2. 2.4.1.2 p2p_connect
        3. 2.4.1.3 p2p_listen
        4. 2.4.1.4 p2p_group_add
        5. 2.4.1.5 p2p_group_remove
        6. 2.4.1.6 p2p_peer
        7. 2.4.1.7 p2p_invite
      2. 2.4.2 P2P 事件详情
    5. 2.5 P2P 用例
      1. 2.5.1 PBC（按钮控制）下的 P2P 连接
      2. 2.5.2 创建自主 1:2 P2P 组（按钮控制）
        1. 2.5.2.1 使用 DHCP 方法在 P2P 模式下分配 IP 地址
        2. 2.5.2.2 创建 1:2 P2P 组 - 利用 PIN 码连接
        3. 2.5.2.3 P2P 邀请过程 - 创建自主 1:2 P2P 组（按钮控制）
  4. 3 接入点 (AP) 和对等 (P2P) 多角色
    1. 3.1 错误/限制
  5. 4 多 BSSID (mBSSID)
    1. 4.1 设置和配置
    2. 4.2 用户指南和示例
  6. 5 接入点 (AP) 增强型低功耗 (ELP) 模式
    1. 5.1 设置和配置
    2. 5.2 用户指南和示例
    3. 5.3 错误/限制
  7. 6 Wilink8 的 WLAN 唤醒 (WoWLAN) 特性
    1. 6.1 运行模式
    2. 6.2 为 AM335x EVM 添加了“暂停/恢复”WoW 模式
      1. 6.2.1 补丁描述
    3. 6.3 WoWLAN（WLAN 唤醒）模式启用过程
      1. 6.3.1 命令和预期输出
      2. 6.3.2 Rx 过滤器配置
        1. 6.3.2.1 Rx 过滤器配置示例
    4. 6.4 WoWLAN - 魔术包
    5. 6.5 区块确认 (BA) 过滤器设置
    6. 6.6 AM335x EVM 的硬件修改工程变更命令 (ECO) 请求
  8. 7 WiLink8 暂停恢复模式
    1. 7.1 AM437x SDK 的暂停恢复示例
  9. 8 接入点 (AP) 动态频率选择 (DFS) 主设备支持
    1. 8.1 设置和配置
    2. 8.2 用户指南和示例
    3. 8.3 错误/限制
  10. 9 站点模式 - 介绍了使用 iw 命令的备选方法
    1. 9.1 第 1 步 - 检查 wlan0 接口是否已在运行
    2. 9.2 第 2 步 - 启动 wlan0 接口（如果未运行）
    3. 9.3 第 3 步 - 将设备连接到可用的接入点
  11. 10参考文献

2.5.2.2 创建 1:2 P2P 组 - 利用 PIN 码连接

以下部分详细介绍了如何使用 PIN 码创建 P2P 组。

步骤编号 EVM #1 EVM #2 说明
1 运行：p2p_start.sh 运行：p2p_start.sh cd /usr/share/wl18xx/ ./p2p_start.sh
2 运行：p2p_cli.sh 运行：p2p_cli.sh ./p2p_cli.sh
3 p2p_find p2p_find 使用 wpa_cli 前缀运行 wpa cli 命令（而不是进入 wpa_cli 实用程序）
4 p2p_peers p2p_peers 验证 p2p 候选 MAC 地址
5 p2p_connect EVM#2_MAC_ADDRESS pin 该命令将在命令的下一行输出 EVM#1 的 PIN 码
6 p2p_connect EVM#2_MAC_ADDRESS EVM#1_PIN_CODE 从上一条 EVM#1 命令获得 EVM#1_PIN_CODE
7 定义 IP 地址 定义 IP 地址 EVM#1: ifconfig p2p-wlan0-0 192.168.3.3 EVM#2: ifconfig p2p-wlan0-0 192.168.3.4
8 使用 ping 验证连接 EVM#1: ping 192.168.3.4 EVM#2: ping 192.168.3.3

以下是上面列出的每条命令的输出详情。响应 p2p_cli.sh、p2p_find、p2p_peers 的命令相同，已在之前的章节中详细介绍。EVM 找到对等设备之后，就使用 PIN 建立连接，如下所示：

> p2p_peers
54:4a:16:3a:c6:29

EVM#1 在连接命令中定义 EVM#2 MAC 地址，该命令的响应可得到 EVM#1 Pin 码（在以下示例中为 04194996）。EVM#2 尝试利用 EVM#1 MAC 地址和 Pin 码连接 EVM#1。

> p2p_connect 78:a5:04:26:97:3e 04194996
OK
> P2P-GO-NEG-SUCCESS role=client freq=5745 ht40=1 peer_dev=78:a5:04:26:97:3e peer_iface=7a:a5:04:26:97:3d wps_method=Keypad
<3>P2P-GO-NEG-SUCCESS role=client freq=5745 ht40=1 peer_dev=78:a5[ 1954.766093] IPv6: ADDRCONF(NETDEV_UP): p2p-wlan0-0: link is not ready
:04:26:97:3e peer_iface=7a:a5:04:26:97:3d wps_method=Keypad
> rfkill: Cannot open RFKILL control device
<3>CTRL-EVENT-SCAN-RESULTS
<3>CTRL-EVENT-SCAN-RESULTS
> p2p-wlan0-0: SME: Trying to authenticate with 7a:a5:04:26:97:3d [ 1955.517183] p2p-wlan0-0: authenticate with 7a:a5:04:26:97:3d
(SSID='DIRECT-Ka' freq=5745 MHz)
[ 1955.534399] p2p-wlan0-0: send auth to 7a:a5:04:26:97:3d (try 1/3)
[ 1955.602583] p2p-wlan0-0: authenticated
p2p-wlan0-0: Trying to associate with 7a:a5:04:26:97:3d (SSID='DIRECT-Ka' freq=5745 MHz)
[ 1955.613139] p2p-wlan0-0: associate with 7a:a5:04:26:97:3d (try 1/3)
[ 1955.643432] p2p-wlan0-0: RX AssocResp from 7a:a5:04:26:97:3d (capab=0x11 status=0 aid=1)
[ 1955.665736] IPv6: ADDRCONF(NETDEV_CHANGE): p2p-wlan0-0: link becomes ready
[ 1955.672755] p2p-wlan0-0: associated
p2p-wlan0-0: Associated with 7a:a5:04:26:97:3d
p2p-wlan0-0: CTRL-EVENT-EAP-STARTED EAP authentication started
p2p-wlan0-0: CTRL-EVENT-EAP-PROPOSED-METHOD vendor=14122 method=1
p2p-wlan0-0: CTRL-EVENT-EAP-METHOD EAP vendor 14122 method 1 (WSC) selected
p2p-wlan0-0: WPS-CRED-RECEIVED
p2p-wlan0-0: WPS-SUCCESS
P2P-GROUP-FORMATION-SUCCESS
<3>P2P-GROUP-FORMATION-SUCCESS
> p2p-wlan0-0: CTRL-EVENT-EAP-FAILURE EAP authentication failed[ 1956.259741] p2p-wlan0-0: deauthenticating from 7a:a5:04:26:97:3d by local choice (Reason: 3=DEAUTH_LEAVING)

[ 1956.314091] cfg80211: Calling CRDA to update world regulatory domain
p2p-wlan0-0: CTRL-EVENT-DISCONNECTED bssid=7a:a5:04:26:97:3d reason=3 locally_generated=1
p2p-wlan0-0: SME: Trying to authenticate with 7a:a5:04:26:97:3d [ 1956.338506] p2p-wlan0-0: authenticate with 7a:a5:04:26:97:3d
(SSID='DIRECT-Ka' freq=5745 MHz)
[ 1956.366373] p2p-wlan0-0: send auth to 7a:a5:04:26:97:3d (try 1/3)
[ 1956.523895] p2p-wlan0-0: authenticated
p2p-wlan0-0: Trying to associate with 7a:a5:04:26:97:3d (SSID='D[ 1956.528187] cfg80211: World regulatory domain updated: 
IRECT-Ka' freq=5745 MHz)
[ 1956.539313] cfg80211:  DFS Master region: unset
[ 1956.545556] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1956.555800] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1956.564298] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1956.572350] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 1956.580685] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 1956.590251] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 1956.600097] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 1956.608334] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 1956.616665] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 1956.624925] cfg80211: Calling CRDA for country: US
p2p-wlan0-0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
[ 1956.642652] p2p-wlan0-0: associate with 7a:a5:04:26:97:3d (try 1/3)
[ 1956.667467] p2p-wlan0-0: RX AssocResp from 7a:a5:04:26:97:3d (capab=0x11 status=0 aid=1)
[ 1956.768148] cfg80211: Regulatory domain changed to country: US
[ 1956.774906] cfg80211:  DFS Master region: FCC
[ 1956.779752] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1956.790725] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
[ 1956.800254] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
[ 1956.810834] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2300 mBm), (0 s)
[ 1956.821088] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[ 1956.830259] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
p2p-wlan0-0: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=US
[ 1956.847737] p2p-wlan0-0: associated
p2p-wlan0-0: Associated with 7a:a5:04:26:97:3d
p2p-wlan0-0: WPA: Key negotiation completed with 7a:a5:04:26:97:[ 1956.867484] wlcore: Association completed.
3d [PTK=CCMP GTK=CCMP]
p2p-wlan0-0: CTRL-EVENT-CONNECTED - Connection to 7a:a5:04:26:97:3d completed [id=0 id_str=]
<3>P2P-GROUP-STARTED p2p-wlan0-0 client ssid="DIRECT-Ka" freq=5745 psk=b7e653e4fef3ddc385497ea2df892b3c520c438cc763e91064bc1d92b6fcf37c go_dev_addr=78:a5:04:26:97:3e
> P2P-GROUP-STARTED p2p-wlan0-0 client ssid="DIRECT-Ka" freq=5745 go_dev_addr=78:a5:04:26:97:3e

EVM#1 的典型响应如下所示： 

> P2P-GO-NEG-SUCCESS role=GO freq=5745 ht40=1 peer_dev=54:4a:16:3a:c6:29 peer_iface=56:4a:16:3a:c6:28 wps_method=Display
<3>P2P-GO-NEG-SUCCESS role=GO freq=5745 ht40=1 peer_dev=54:4a:16:3a:c6:29 peer_iface=56:4a:16:3a:c6:28 wps_method=Display
> rfkill: Cannot open RFKILL control device
[ 1966.108421] IPv6: ADDRCONF(NETDEV_UP): p2p-wlan0-0: link is not ready
[ 1966.265558] wlcore: down
p2p-wlan0-0: interface state UNINITIALIZED->HT_SCAN
Using interface p2p-wlan0-0 with hwaddr 7a:a5:04:26:97:3d and ssid "DIRECT-Ka"
[ 1966.524889] IPv6: ADDRCONF(NETDEV_CHANGE): p2p-wlan0-0: link becomes ready
p2p-wlan0-0: interface state HT_SCAN->ENABLED
p2p-wlan0-0: AP-ENABLED
p2p-wlan0-0: CTRL-EVENT-CONNECTED - Connection to 7a:a5:04:26:97:3d completed [id=0 id_str=]
<3>CTRL-EVENT-SCAN-RESULTS
> p2p-wlan0-0: CTRL-EVENT-EAP-STARTED 56:4a:16:3a:c6:28
p2p-wlan0-0: CTRL-EVENT-EAP-PROPOSED-METHOD vendor=0 method=1
p2p-wlan0-0: CTRL-EVENT-EAP-PROPOSED-METHOD vendor=14122 method=254
p2p-wlan0-0: WPS-REG-SUCCESS 56:4a:16:3a:c6:28 78efc791-3214-54b1-8c7e-5be0d1f274e2
P2P-GROUP-FORMATION-SUCCESS
<3>P2P-GROUP-FORMATION-SUCCESS
<3>P2P-GROUP-STARTED p2p-wlan0-0 GO ssid="DIRECT-Ka" freq=5745 passphrase="VRtsc4Nz" go_dev_addr=78:a5:04:26:97:3e
> P2P-GROUP-STARTED p2p-wlan0-0 GO ssid="DIRECT-Ka" freq=5745 go_dev_addr=78:a5:04:26:97:3e
p2p-wlan0-0: WPS-SUCCESS
p2p-wlan0-0: CTRL-EVENT-EAP-FAILURE 56:4a:16:3a:c6:28
p2p-wlan0-0: AP-STA-CONNECTED 56:4a:16:3a:c6:28 p2p_dev_addr=54:4a:16:3a:c6:29
AP-STA-CONNECTED 56:4a:16:3a:c6:28 p2p_dev_addr=54:4a:16:3a:c6:29
<3>AP-STA-CONNECTED 56:4a:16:3a:c6:28 p2p_dev_addr=54:4a:16:3a:c6:29

这时，通过点击控制台中的“q”，两个 EVM 均可退出 CLI 界面。

下一步是指定静态 IP 地址并验证 P2P 客户端可以使用该 IP 地址通信。使用 ping 序列进行验证。

EVM#1 EVM#2 
root@am437x-evm:/usr/share/wl18xx# ifconfig p2p-wlan0-0 192.168.3.3
root@am437x-evm:/usr/share/wl18xx# ifconfig –a p2p-wlan0

p2p-wlan0-0 Link encap:Ethernet  HWaddr 7A:A5:04:26:97:3D
          inet addr:192.168.3.3  Bcast:192.168.3.255  Mask:255.255.255.0
          inet6 addr: fe80::78a5:4ff:fe26:973d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:2 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1253 (1.2 KiB)  TX bytes:2503 (2.4 KiB)

root@am335x-evm:/usr/share/wl18xx# ifconfig p2p-wlan0-0 192.168.3.4
root@am335x-evm:/usr/share/wl18xx# ifconfig –a p2p-wlan0

p2p-wlan0-0 Link encap:Ethernet  HWaddr 56:4A:16:3A:C6:28
          inet addr:192.168.3.4  Bcast:192.168.3.255  Mask:255.255.255.0
          inet6 addr: fe80::544a:16ff:fe3a:c628/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1511 (1.4 KiB)  TX bytes:1903 (1.8 KiB)

指定 IP 地址后可以验证连接，如下所示：

EVM#1 EVM#2 
root@am437x-evm:/usr/share/wl18xx# ping 192.168.3.4
PING 192.168.3.4 (192.168.3.4): 56 data bytes
64 bytes from 192.168.3.4: seq=0 ttl=64 time=1384.869 ms
64 bytes from 192.168.3.4: seq=1 ttl=64 time=383.960 ms
64 bytes from 192.168.3.4: seq=2 ttl=64 time=97.437 ms
64 bytes from 192.168.3.4: seq=3 ttl=64 time=122.172 ms

root@am335x-evm:/usr/share/wl18xx# ping 192.168.3.3
PING 192.168.3.3 (192.168.3.3): 56 data bytes
64 bytes from 192.168.3.3: seq=0 ttl=64 time=11.911 ms
64 bytes from 192.168.3.3: seq=1 ttl=64 time=1115.697 ms
64 bytes from 192.168.3.3: seq=2 ttl=64 time=115.208 ms
64 bytes from 192.168.3.3: seq=3 ttl=64 time=9.148 ms