SWRU576 January   2021 WL1801MOD , WL1805MOD , WL1807MOD , WL1831MOD , WL1835MOD , WL1837MOD

 

  1.   Trademarks
  2. 1 Introduction
    1. 1.1 Acronyms Used in This Document
  3. 2 Peer to Peer (P2P) Mode
    1. 2.1 P2P Device
      1. 2.1.1 Searching Phase
      2. 2.1.2 Negotiation
      3. 2.1.3 Group Formation
    2. 2.2 PSP Client
    3. 2.3 P2P GO
    4. 2.4 P2P Commands
      1. 2.4.1 P2P Commands Detailed Information
        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 Event Details
    5. 2.5 P2P Use Cases
      1. 2.5.1 P2P Connection in PBC (Push Button Control)
      2. 2.5.2 Create Autonomous 1:2 P2P Group (Push button Control)
        1. 2.5.2.1 Assigning IP Address in P2P Mode Using DHCP Method
        2. 2.5.2.2 Create 1:2 P2P Group - Connect With PIN Code
        3. 2.5.2.3 P2P Invitation Procedure - Create Autonomous 1:2 P2P Group, (Push button Control)
  4. 3 Access Point (AP) and Peer-to-Peer (P2P) Multirole
    1. 3.1 Errata/Limitations
  5. 4 Multi BSSID (mBSSID)
    1. 4.1 Setup and Configuration
    2. 4.2 User Guide and Examples
  6. 5 Access Point (AP) Enhanced Low Power (ELP) Mode
    1. 5.1 Setup and Configuration
    2. 5.2 User Guide and Examples
    3. 5.3 Errata/Limitations
  7. 6 WiLink8 Wake on WLAN (WoWLAN) Feature
    1. 6.1 Mode of Operation
    2. 6.2 Adding "Suspend/Resume" WoW Mode to AM335x EVM
      1. 6.2.1 Patch Description
    3. 6.3 WoWLAN (Wake on WLAN) Mode Enable Procedure
      1. 6.3.1 Commands and Expected Output
      2. 6.3.2 Rx Filter Configuration
        1. 6.3.2.1 Rx Filter Configuration Examples
    4. 6.4 WoWLAN - Magic Packet
    5. 6.5 Block Acknowledgement (BA) Filter Setting
    6. 6.6 Hardware Modification Engineering Change Order (ECO) Request for AM335x EVM
  8. 7 WiLink8 Suspend Resume Mode
    1. 7.1 Suspend Resume Example With AM437x SDK
  9. 8 Access Point (AP) Dynamic Frequency Selection (DFS) Master Support
    1. 8.1 Setup and Configuration
    2. 8.2 User Guide & Examples
    3. 8.3 Errata/Limitations
  10. 9 Station Mode - Alternative Method, With iw Commands, Explained
    1. 9.1 Step 1- Check if the wlan0 Interface is Already Running
    2. 9.2 Step 2- Bringup wlan0 Interface if Not Running
    3. 9.3 Step 3 - Connect Device to Available Acces Point
  11. 10References

6.3.1 Commands and Expected Output

WoW uses the iw commands. The WoW related iw tool commands are listed below: 

iw <phyname> wowlan enable [any] [disconnect] [magic-packet] [gtk-rekey-failure] [eap-identity-request] [4way-handshake] [rfkill-release] [patterns <pattern>*] iw <iwname> wowlan disable iw <phyname> wowlan show

Enter WoW Suspend Mode

WoW Suspend mode can be entered by calling the following command: 

echo mem > /sys/power/state

The following screen shot shows how the Host is entering suspend mode, also the WL18xx is suspended

[16277.797393] PM: Syncing filesystems ... done.
[16277.929870] PM: Preparing system for mem sleep
[16277.934509] Freezing user space processes ... (elapsed 0.02 seconds) done.
[16277.963470] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) done.
[16277.994689] PM: Entering mem sleep
[16277.998565] Suspending console(s) (use no_console_suspend to debug)
[16278.242462] PM: suspend of devices complete after 236.060 msecs
[16278.243408] PM: late suspend of devices complete after 0.945 msecs
[16279.748199] Successfully put all powerdomains to target state
Resume From Suspend

The system can be resumed from suspend by a ping. The following screen shot shows how the Host is resuming from suspend mode, also the WL18xx is reconnecting to the Wi-Fi network (by the WPA supplicant) and traffic resumes.

[16279.748840] PM: early resume of devices complete after 0.518 msecs
[16279.749237] platform iva.0: omap_voltage_scale: Already at the requested rate 800000000
[16279.749237] platform mpu.0: omap_voltage_scale: Already at the requested rate 1000000000
[16280.107391] PM: resume of devices complete after 358.428 msecs
[16280.157989] PM: Finishing wakeup.
[16280.161499] Restarting tasks ... done.