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

2.5.1 PBC（按钮控制）下的 P2P 连接

表 2-6 中列出的命令介绍了如何使用按钮控制法创建 1:1 P2P 组。图 2-2 介绍了硬件设置。需要在每个 EVM 上运行的命令在不同的列中提供，注释内容为系统将执行的操作。

表 2-6 在 PBC 模式下创建 P2P 的命令
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
4 p2p_peers p2p_peers 验证 p2p 候选 MAC 地址
5 p2p_connect EVM#2_MAC_ADDRESS pbc go_intent=7 go_intent=7 表示两个 EVM 有相同的机会成为 GO；go_intent= 15 表示该 EVM 将成为 GO；go_intent= 0 表示该 EVM 将成为客户端
6 p2p_connect EVM#1_MAC_ADDRESS pbc
7 使用 Ping 流量验证连接
8 运行：p2p_stop.sh 运行：p2p_stop.sh ./p2p_stop.sh

以下是执行第 3 步后 EVM#1 终端的典型输出：

> p2p_find
OK
<3>CTRL-EVENT-SCAN-STARTED
<3>CTRL-EVENT-SCAN-STARTED
<3>CTRL-EVENT-SCAN-STARTED
> P2P-DEVICE-FOUND 54:4a:16:3a:c6:29 p2p_dev_addr=54:4a:16:3a:c6:29 pri_dev_type=0-00000000-0 name='Sitara' config_methods=0x188 dev_capab=0x25 group_capab=0x0 new=1
<3>P2P-DEVICE-FOUND 54:4a:16:3a:c6:29 p2p_dev_addr=54:4a:16:3a:c6:29 pri_dev_type=0-00000000-0 name='Sitara' config_methods=0x188 dev_capab=0x25 group_capab=0x0 new=1
<3>CTRL-EVENT-SCAN-STARTED

以下是执行第 3 步后 EVM#2 终端的典型输出： 

> p2p_find
OK
<3>CTRL-EVENT-SCAN-STARTED
<3>CTRL-EVENT-SCAN-STARTED
> P2P-DEVICE-FOUND 78:a5:04:26:97:3e p2p_dev_addr=78:a5:04:26:97:3e pri_dev_type=0-00000000-0 name='Sitara' config_methods=0x188 dev_capab=0x25 group_capab=0x0 new=1
<3>P2P-DEVICE-FOUND 78:a5:04:26:97:3e p2p_dev_addr=78:a5:04:26:97:3e pri_dev_type=0-00000000-0 name='Sitara' config_methods=0x188 dev_capab=0x25 group_capab=0x0 new=1
<3>CTRL-EVENT-SCAN-STARTED
<3>CTRL-EVENT-SCAN-STARTED
> p2p_peers
78:a5:04:26:97:3e

以下是执行第 4 步（EVM#1 上为 p2p_peers，EVM#2 上为 p2p_connect）后的典型输出：

> p2p_peers
54:4a:16:3a:c6:29
> p2p_connect 54:4a:16:3a:c6:29 pbc auth go_intent=7
OK
<3>CTRL-EVENT-SCAN-STARTED
> P2P-FIND-STOPPED
<3>P2P-FIND-STOPPED
> P2P-GO-NEG-SUCCESS role=GO freq=5785 ht40=1 peer_dev=54:4a:16:3a:c6:29 peer_iface=56:4a:16:3a:c6:28 wps_method=PBC
<3>P2P-GO-NEG-SUCCESS role=GO freq=5785 ht40=1 peer_dev=54:4a:16:3a:c6:29 peer_iface=56:4a:16:3a:c6:28 wps_method=PBC
> rfkill: Cannot[  163.485189] IPv6: ADDRCONF(NETDEV_UP): p2p-wlan0-0: link is not ready
 open RFKILL control device
[  163.696518] 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-HS"
[  163.964447] 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=]
p2p-wlan0-0: WPS-PBC-ACTIVE
<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-HS" freq=5785 passphrase="hf3O0VFN" go_dev_addr=78:a5:04:26:97:3e
> P2P-GROUP-STARTED p2p-wlan0-0 GO ssid="DIRECT-HS" freq=5785 go_dev_addr=78:a5:04:26:97:3e
p2p-wlan0-0: WPS-PBC-DISABLE
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

> p2p_connect 78:a5:04:26:97:3e pbc
P2P-FIND-STOPPED
OK
<3>P2P-FIND-STOPPED
> P2P-GO-NEG-SUCCESS role=client freq=5785 ht40=1 peer_dev=78:a5:04:26:97:3e peer_iface=7a:a5:04:26:97:3d wps_method=PBC
<3>P2P-GO-NEG-SUCCESS role=client freq=5785 ht40=1 peer_dev=78:a5:04[  152.100796] IPv6: ADDRCONF(NETDEV_UP): p2p-wlan0-0: link is not ready
:26:97:3e peer_iface=7a:a5:04:26:97:3d wps_method=PBC
> rfkill: Cannot open RFKILL control device
p2p-wlan0-0: SME: Trying to authenticate with 7a:a5:04:26:97:3d [  153.031799] p2p-wlan0-0: authenticate with 7a:a5:04:26:97:3d
(SSID='DIRECT-HS' freq=5785 MHz)
[  153.048411] p2p-wlan0-0: send auth to 7a:a5:04:26:97:3d (try 1/3)
[  153.106117] p2p-wlan0-0: authenticated
p2p-wlan0-0: Trying to associate with 7a:a5:04:26:97:3d (SSID='D[  153.112919] p2p-wlan0-0: associate with 7a:a5:04:26:97:3d (try 1/3)
IRECT-HS' freq=5785 MHz)
[  153.137937] p2p-wlan0-0: RX AssocResp from 7a:a5:04:26:97:3d (capab=0x11 status=0 aid=1)
[  153.160889] IPv6: ADDRCONF(NETDEV_CHANGE): p2p-wlan0-0: link becomes ready
[  153.168129] 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[  153.587483] p2p-wlan0-0: deauthenticating from 7a:a5:04:26:97:3d by local choice (Reason: 3=DEAUTH_LEAVING)

[  153.641061] 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 [  153.662373] p2p-wlan0-0: authenticate with 7a:a5:04:26:97:3d
(SSID='DIRECT-HS' freq=5785 MHz)
[  153.693043] p2p-wlan0-0: send auth to 7a:a5:04:26:97:3d (try 1/3)
[  153.886367] p2p-wlan0-0: authenticated
p2p-wlan0-0: Trying to associate with 7a:a5:04:26:97:3d (SSID='D[  153.890652] cfg80211: World regulatory domain updated: 
IRECT-HS' freq=5785 MHz)
[  153.901788] cfg80211:  DFS Master region: unset
[  153.908091] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  153.917925] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  153.926348] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  153.934436] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[  153.942746] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[  153.953124] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  153.962716] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[  153.970848] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[  153.979253] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[  153.987494] cfg80211: Calling CRDA for country: US
p2p-wlan0-0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD[  154.002636] p2p-wlan0-0: associate with 7a:a5:04:26:97:3d (try 1/3)
[  154.122766] cfg80211: Regulatory domain changed to country: US
[  154.129005] p2p-wlan0-0: RX AssocResp from 7a:a5:04:26:97:3d (capab=0x11 status=0 aid=1)
[  154.137984] cfg80211:  DFS Master region: FCC
[  154.142205] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  154.153611] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
[  154.161787] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
[  154.172011] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2300 mBm), (0 s)
[  154.181774] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[  154.191168] 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
[  154.212782] 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:[  154.291945] 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-HS" freq=5785 psk=08dd88ac41f0a0d4321fd33de19e35d7a54fb827e8a5359193d8487880e15704 go_dev_addr=78:a5:04:26:97:3e
> P2P-GROUP-STARTED p2p-wlan0-0 client ssid="DIRECT-HS" freq=5785 go_dev_addr=78:a5:04:26:97:3e

在两个 EVM 上点击“q”退出请求程序 CLI。

> q

在两个 EVM 上将 IP 地址分配给 P2P 接口，如下所示： 

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

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:33 errors:0 dropped:2 overruns:0 frame:0
          TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2919 (2.8 KiB)  TX bytes:4457 (4.3 KiB)
root@am335x-evm:/usr/share/wl18xx# ifconfig p2p-wlan0-0 192.168.3.4
root@am335x-evm:/usr/share/wl18xx# ifconfig -a p2p-wlan0-0

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:26 errors:0 dropped:0 overruns:0 frame:0
          TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3023 (2.9 KiB)  TX bytes:4041 (3.9 KiB)

执行第 7 步中指定的 ping 测试，以验证连接。

表 2-7 P2P 模式下的 Ping 响应

EVM#1 上的 Ping 响应

EVM#2 上的 Ping 响应

 
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=193.529 ms
64 bytes from 192.168.3.4: seq=1 ttl=64 time=1032.839 ms
64 bytes from 192.168.3.4: seq=2 ttl=64 time=32.006 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=229.453 ms
64 bytes from 192.168.3.3: seq=1 ttl=64 time=9.430 ms
64 bytes from 192.168.3.3: seq=2 ttl=64 time=10.999 ms

若要退出 p2p 测试，在两个 EVM 上运行 p2p_stop.sh：

EVM#1 上的 p2p_stop 响应 EVM#2 上的 p2p_stop 响应 
root@am437x-evm:/usr/share/wl18xx# ./p2p_stop.sh
P2P-GROUP-REMOVED p2p-wlan0-0 GO reason=REQUESTED
p2p-wlan0-0: interface state ENABLED->DISABLED
p2p-wlan0-0: AP-STA-DISCONNECTED 56:4a:16:3a:c6:28 p2p_dev_addr=54:4a:16:3a:c6:29
AP-STA-DISCONNECTED 56:4a:16:3a:c6:28 p2p_dev_addr=54:4a:16:3a:c6:29
p2p-wlan0-0: AP-DISABLED
p2p-wlan0-0: CTRL-EVENT-DISCONNECTED bssid=7a:a5:04:26:97:3d reason=3 locally_generated=1
nl80211: deinit ifname=p2p-wlan0-0 disabled_11b_rates=1
[ 1135.058889] wlcore: down
P2P-DEVICE-LOST p2p_dev_addr=54:4a:16:3a:c6:29
nl80211: deinit ifname=p2p-dev-wlan0 disabled_11b_rates=0
OK
root@am437x-evm:/usr/share/wl18xx# [ 1135.173022] wlcore: down
p2p-dev-wlan0: CTRL-EVENT-TERMINATING
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
wlan0: CTRL-EVENT-TERMINATING

root@am335x-evm:/usr/share/wl18xx# ./p2p_stop.shnl80211: deinit ifname=p2p-dev-wlan0 disabled_11b_rates=0OK[ 1169.243405] wlcore: downroot@am335x-evm:/usr/share/wl18xx# p2p-dev-wlan0: CTRL-EVENT-TERMINATINGnl80211: deinit ifname=wlan0 disabled_11b_rates=0wlan0: CTRL-EVENT-TERMINATING