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This step by step guide provides detailed instructions to assist the RDK-B community in porting the OneWiFi component to the Raspberry Pi 4 RPi4 reference platform

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Dependencies to build 

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OneWifi

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Target Platform: MediaTek platform (using Raspberry Pi RPi4 as a reference)

Platform Layer: Create a platform layer for MediaTek, using Raspberry Pi RPi4 as the reference.

Code References

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OneWifi Process Bringup Patches 

Manifest entries

OneWiFi OneWifi component entry: OneWiFi onewifi manifest

HAL component entry: rdk-wifi-hal manifest 

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1. meta-raspberrypi or meta-cmf-soc-<soc_name>
   • Firmware/drivers/kernel to be available
   • For proposing a new component, please create a bb file here
2. meta-cmf-raspberrypi or meta-cmf-<platform_name>
   • RDK-B specific changes to the SOC platform
   • All changes that need to be done for the primary recipe are handled in the form of bbappend
   • Patches: Patches are recommended if the changes are very specific and tied with SOC platform code
3. meta-cmf-broadband
   • RDK-B changes common to all RDK-B community members.
   • All changes that need to be done for the primary recipe are handled in the form of bbappend
   • Patches: Patches are recommended if the changes are very specific and tied with SOC platform code
   • Note: All existing reference patches in Raspberry pi RPi4 may not be applicable for real targets, Because of hardware limitation & functionality limitation we have added patches.

Bug Fixes or Feature Enhancements

Generic Bug Fixes:
Any bug fixes or feature enhancements that are generic enough should be committed to the OneWiFi OneWifi generic repository.

Flags defined in

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OneWifi

Platform-Specific Flags:

Raspberry Pi RPi4 has certain limitations related to driver support and end-to-end functionality for OneWiFiOneWifi. To manage these limitations, a flag _PLATFORM_RASPBERRYPI_ has been introduced to enable conditional compilation.

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For bulk atomic HAL APIs related to common configuration, refer to the HAL APIs documentation .

Stats Implementation

• Vendor-Specific Implementation:
  Stats implementation is vendor-specific. The implementation from the device-specific HAL can be used. Refer to

  Jira
  server JIRA - 2 serverId 11deff04-0380-3a3d-a916-0849d4e573f7 key REFPLTB-2510

  for more details details. 

Wi-Fi database

Database File:

rdkb-wifi.db

64-bit build support:

Currently, Comcast does not support 64-bit platforms. However, the RDK team supports 64-bit builds for Raspberry Pi 4 RPi4 platforms, where OneWiFi OneWifi has been fully supported. Numerous alignment issues and warnings treated as errors have been addressed in this support.

Difference Between CcspWifiAgent and

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OneWifi Apply settings

CcspWifiAgent:

dmcli eRT setv Device.WiFi.Radio.2.X_CISCO_COM_ApplySetting bool true
dmcli eRT setv Device.WiFi.Radio.1.X_CISCO_COM_ApplySetting bool true

OneWiFiOneWifi:

#Any dmcli commands specific to SSID and AccessPoint execute the Below Access Point Related apply settings
dmcli eRT setv Device.WiFi.ApplyAccessPointSettings bool true
 
#Any dmcli executions specific to Radio level use the below Radio apply settings command
dmcli eRT setv Device.WiFi.ApplyRadioSettings bool true

Debugging Tips

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Below

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is the list of logs present in /rdklogs/logs for Debugging

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OneWifi issues. For Additional in-depth Debugging one should enable below commands

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:

• touch /nvram/wifiMgrDbg
• touch /nvram/wifiDbDbg
• touch /nvram/wifiWebConfigDbg
• touch /nvram/wifiHalDbg
• touch /nvram/wifiCtrlDbg
• touch /nvram/wifiMonDbg
• touch /nvram/wifiDMCLI
• touch /nvram/wifiLib
• touch /nvram/wifiLibhostapDbg

check for the respective logs in /tmp

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:

• tail -f wifiCtrl &
• tail -f wifiHal &
• tail -f wifiMgr &
• tail -f wifiDMCLI &
• tail -f wifiDb &
• tail -f wifiWebConfig &
• tail -f wifilibhostap &

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Wi-Fi 7 segment

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Initial

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headers are available

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in this commit.

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The following features will be supported by

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OneWifi as part of Wi-Fi 7, which includes changes in

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OneWifi, rdk-wifi-hal

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and libhostap (for Wi-Fi 7 we use libhostap 2.11 version):

1. 320 MHZ
2. 4kQAM
3. MLO

Additional References

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For more info refer Porting Guide - OneWifi