NXP 88W8997 User guide

Brand: NXP

Model: 88W8997

Category: Networking

Type: User guide

UM11563

WFA Certification for NXP-based Wireless Modules on i.MX

8M Quad EVK Running Android OS

Rev. 1 — 31 March 2021

Document information

Information Content

Keywords Wi-Fi Alliance (WFA), certification, 88W8997, i.MX 8M Quad EVK, Android 10,

WTS programs

Abstract Provides the step-by-step procedure of WFA certification for 88W8997-based

wireless modules on i.MX 8M Quad EVK running Android 10.

NXP Semiconductors

UM11563

WFA Certification for NXP-based Wireless Modules on i.MX 8M Quad EVK Running Android OS

Rev Date Description

v.1 20210331 Initial version

Revision history

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1 About this document

1.1 Purpose and scope

This document describes the test setup and procedure used for WFA certification of Wi-

Fi features like 802.11ac, 802.11n, protected management frames (PMF), WPA3, and

security vulnerability detection (SVD) of 88W8997 wireless SoC. This document applies

to 88W8997-based wireless module connected to i.MX 8M Quad EVK running Android

OS, and configured as a station (STA). The instructions apply to other similar platforms

and wireless SoC.

The users should be familiar with the user manuals reference UM11558 and UM11490.

1.2 References

Document type Document title

User manual

Getting Started with NXP-based Wireless Modules on i.MX 8M Quad

EVK Running Android 10 OS (UM11558) - User manual

User manual

Feature Configuration Guide for NXP-based Wireless Modules on i.MX

8M Quad EVK (UM11490) - User manual

User manual Quick Start Guide i.MX 8M Quad Evaluation Kit (MCIMX8M-EVK) -

User manual

Table 1. Reference documents

1.3 Considerations

The readers should have some knowledge of Wi-Fi terminologies and certification.

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2 Test setup

Figure 1 illustrates the test setup.

Figure 1. Test setup

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2.1 Set up Linux host

Prepare the host laptop. You only need to do this once. Refer to Section 4.6 "Flashing

Android 10 image to eMMC" and Section 4.7.4 "Using scrcpy tool" in UM11558.

2.2 Compile i.MX image and flash the board

Follow the instructions in UM11558 to set up i.MX 8M Quad EVK Android image and

flash Android 10 image to eMMC.

2.3 Set up i.MX 8M Quad EVK board for testing

• Open a terminal on the Linux host with root access:

$ sudo su

• Run the following commands to enable adb

$ adb reboot bootloader

$ fastboot oem unlock #this command will take some time

$ fastboot reboot

$ adb root

$ adb disable-verity

$ adb reboot

$ adb root

$ adb remount

The driver is stored at the following location on i.MX 8M Quad EVK board: /vendor/lib/

modules

The firmware is stored at the following location on i.MX 8M Quad EVK board: /vendor/

firmware

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3 WFA certification test procedure

This section shows the sequence of operations to run in order to test the Wi-Fi features.

3.1 Set up the serial console

Set up the test. See Section 2 "Test setup".

Follow these steps to setup the serial console and access the i.MX 8M Quad device

terminal:

• Open the serial console and login into the device

ubuntu@ubuntu-desktop:/# sudo minicom -s -D /dev/ttyUSBx

• ttyUSB0 or ttyUSB01 are the serial devices. The minicom setup configuration is given

below:

A - Serial Device : /dev/ttyUSBx

E - Bps/Par/Bits : 115200 8N1

F - Hardware Flow Control : No

G - Software Flow Control : No

• Save and exit.

3.2 Copy the required files

• Connect the device to the host machine (Linux/Windows) using a type C USB-OTG

cable.

• Use adb to push NXP_WTS_AGENT_U16_bin directory to i.MX 8M Quad EVK board:

The command on Linux host is as follows:

adb push <absolute_path>/NXP_WTS_AGENT_U16_bin /data/

• Set the permission to the files within NXP_WTS_AGENT_U16_bin directory copied to

i.MX 8M Quad EVK board using the command:

evk_8mq:/ # chmod 777 * -Rf

• Copy the driver file set [bin_wlan/*] to NXP_WTS_AGENT_U16_bin directory

• Copy the utility and config file set [bin_wlan/*] to [/data/NXP_WTS_AGENT_U16_bin/]

on i.MX 8M Quad EVK board

• Copy the firmware file set [FW_Image/*] to /lib/firmware/nxp/ directory of i.MX 8M Quad

EVK board

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3.3 Load the driver

Use the cd command to go to NXP_WTS_AGENT_U16_bin directory where the driver

files are located on i.MX board.

Note: By default the turbo mode is enabled in the firmware. Four WTS programs: VHT-

STAUT, VHT-APUT-HOSTAPD, 11N-STAUT, and 11N-APUT-HOSTAPD, require turbo

mode to be disabled. See Section 3.3.1 "Disable Turbo mode".

Run the shell script load.sh script to install the driver located in

NXP_WTS_AGENT_U16_bin directory.

evk_8mq:/ # ./load.sh

Note: The shell script changes with the feature being tested. Refer to the program

specific data for the script to use.

Check the version of the build with the following command:

evk_8mq:/ # ./mlanutl mlan0 version

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3.3.1 Disable Turbo mode

• Convert the Turbo mode configuration file turbo_mode.conf to a binary format (.bin) so

the wireless driver can use it.

Configuration file:

#File : turbo_mode.conf

## WMM turbo mode config command

turbo_mode_set={

CmdCode=0x0016 # do NOT change this line

Action:2=0 # 1 - SET

OID:2=0x27 # OID_WMM_TURBO_MODE

Size:2=128

Value:128=5 # 1 -- Enable turbo_mode_1; 2 -- Enable

turbo_mode_2; otherwise, disable turbo_mode

}

The following command uses mlanutl utility to convert the configuration file to a binary

format. mlanutl utility is stored in /data/NXP_WTS_AGENT_U16_bin/ directory

./mlanutl <wireless interface> hostcmd <conf_file_name> generate_raw

<bin_file_name>

For Turbo mode:

evk_8mq:/ # ./mlanutl mlan0 hostcmd config/turbo_mode.conf

generate_raw turbo_mode.bin

• Copy the newly generated binary file turbo_mode.bin into the wireless firmware

directory. For Android operating systems, the directory is: /vendor/firmware/

• Change the driver load parameters:

– Go to NXP_WTS_AGENT_U16_bin directory where the load.sh script file is stored

– Use the insmod command to update the load.sh script file

– Add the driver load parameter init_hostcmd_cfg=turbo_mode.bin to load.sh

script

Note: Make sure to remove the driver load parameter

init_hostcmd_cfg=turbo_mode.bin from the load.sh script for the other WTS

programs than VHT-STAUT, VHT-APUT-HOSTAPD, 11N-STAUT, and 11N-APUT-

HOSTAPD.

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3.4 Start Sigma

Sigma automation test suite formerly named Wi-Fi Test Suite (WTS) is an automation

framework provided by Wi-Fi Alliance. All the test bed devices including Access Points,

test bed STAs, Sniffers and Traffic generator are controlled through the Unified CAPI

(Control API) Console (UCC). The CA and DUT control agents (wfa_ca and wfa_dut) are

components of the automation test suite.

3.4.1 Start Sigma for the DUT agent (wfa_dut)

• Open an scrcpy.adb shell to access the i.MX 8M Quad EVK board

• Go to NXP_WTS_AGENT_U16_bin directory where you have copied wfa_dut and

wfa_ca agents earlier

• Run the command to start wfa_dut DUT agent:

Syntax: ./wfa_dut <interface> <dut_port> <program_index>

Where:

Command parameter Description

interface Interface name

dut_port Port number for the DUT

program_index Program index value. See Table 2.

Example

./wfa_dut lo 8000 2 // starts VHT-STAUT program for DUT port number 8000 and

lo interface

Command to get the DUT agent version:

wfa_dut -v (version)

Table 2 lists the program index values.

Program index WTS program

1 HE-STAUT

2 VHT-STAUT

3 VHT-STAUT-MWIFIEX

4 VHT-APUT-UAPUTL

5 VHT-APUT-HOSTAPD

6 TDLS

7 WMM-PS-STAUT

8 P2P-MWU

9 P2P-WS

10 PMF-STAUT

11 PMF-STAUT-MWIFIEX

12 PMF-APUT-UAPUTL

13 PMF-APUT-HOSTAPD

14 11N-STAUT

15 11N-STAUT-MWIFIEX

Table 2. WTS program index values

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Program index WTS program

16 11N-APUT-UAPUTL

17 11N-APUT-HOSTAPD

18 HS2-R1

19 HS2-R2

20 V-E-STAUT

21 WPA3-STAUT

22 WPA3-APUT-HOSTAPD

Table 2. WTS program index values...continued

3.4.2 Start Sigma for the CA control agent (wfa_ca)

• Open another an scrcpy.adb shell

• Go to NXP_WTS_AGENT_U16_bin directory where you have copied wfa_ca

component files earlier

• Run the command to start wfa_ca CA agent:

Syntax: ./wfa_ca.sh <control interface>

Where:

Command parameter Description

control interface Network control interface name

Example

./ca.sh eth0 // starts the control agent for eth0

3.4.3 Configure the traffic

Once the CA and DUT agents are running, run the following commands to forward traffic

from the host eth0 that is connected to i.MX 8M Quad EVK via a type C USB-OTG cable:

scrcpy.adb forward tcp:9002 tcp:9000

socat TCP4-LISTEN:9000,fork TCP4:localhost:9002

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3.5 Access and configure i.MX 8M Quad EVK

This section describes the two ways to access and configure i.MX 8M EVK:

• Using the command-line interface (CLI)

• Using a graphical user interface (GUI)

Some Wi-Fi features are tested using GUI, other features are tested with CLI and some

features are tested using a combination of both GUI and CLI. Refer to Section 5 "Android

10 known limitations and workarounds".

3.5.1 Access and configure the device using CLI

Open a terminal window on the Linux host

Use adb to access the device. See Section 2.3 "Set up i.MX 8M Quad EVK board for

testing"

scrcpy.adb shell

Go to /data/NXP…bin/ directory

Run the script to load the driver:

./load.sh

3.5.2 Access and configure the device using GUI

• Open a terminal on the Linux host

• Run the command to open the GUI:

scrcpy -m 768

• Go to Settings > Network and Internal > Wi-Fi > Enable the Wi-Fi.

• Select the SSID of the desired AP.

• Enter the passphrase.

• Go to Advanced settings.

• Select DHCP for ip configuration and use Device MAC setting for the association.

• Select ok.

• Connect to the AP.

Once you have associated the device to the AP and used DHCP to send the ip to the

device, use the adb shell terminal and ping to the PC end point.

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4 Certification program execution

4.1 PMF certification using CLI and GUI

4.1.1 Change the PMF settings using GUI

• Access the DUT. See Section 3.5.2 "Access and configure the device using GUI".

• Open the configuration file wpa_supplicant_overlay.conf located in /vendor/etc/wifi/

directory

• Add pmf=1 or pmf=2 according to the test case.

4.1.2 Change the PMF settings using CLI

• Use GUI to disable the Wi-Fi. See Section 3.5.2 "Access and configure the device

using GUI".

• Open a terminal window on the Linux host

• Create the configuration file wpa_supplicant_overlay.conf on the Linux host:

cat /vendor/etc/wifi/wpa_supplicant_overlay.conf

• Add pmf=1 or pmf=2 according to the test case.

• Push the configuration file to adb:

scrcpy.adb push wpa_supplicant_overlay.conf /data/

• Go to scrcpy.adb shell

• Copy the configuration file wpa_supplicant_overlay.conf from /data/ directory to /

vendor/etc/wifi/ directory.

• Use GUI to enable the Wi-Fi. See Section 3.5.2 "Access and configure the device using

GUI".

4.1.3 PMF test case 5.1

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

Note: Repeat these steps for each scenario.

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4.1.4 PMF test case 5.2

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/

• Add pmf=2. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

Note: Repeat these steps for each scenario.

4.1.5 PMF test case 5.3.3.1

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

4.1.6 PMF test case 5.3.3.2

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=2. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

4.1.7 PMF test case 5.3.3.3

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Ping the PC-end point ip:

ping <PC-end point ip>

Disable the Wi-Fi using GUI to send deauth frame to AP

• See Section 3.5.2 "Access and configure the device using GUI".

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4.1.8 PMF test case 5.3.3.4

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

4.1.9 PMF test case 5.3.3.5

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

4.1.10 PMF test case 5.4.3.1

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

4.1.11 PMF test case 5.4.3.2

Associate STAUT to AP

• Edit wpa_supplicant_overlay.conf configuration file located in /vendor/etc/wifi/

• Add pmf=1. See Section 4.1.1 "Change the PMF settings using GUI" or Section 4.1.2

"Change the PMF settings using CLI"

• Associate to AP. See Section 3.5 "Access and configure i.MX 8M Quad EVK"

• Ping the PC-end point ip:

ping <PC-end point ip>

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4.2 WPA3 SAE certification using CLI

Open a terminal window on the Linux host

Use adb to access the device. See Section 2.3 "Set up i.MX 8M Quad EVK board for

testing"

scrcpy.adb shell

Go to /data/NXP…bin/ directory

Run the script to load the driver:

./load.sh

4.2.1 WPA3 test case 5.2.1

Associate STAUT to AP using group 19

• Start wpa_supplicant utility located in /vendor/bin/hw/ directory

./wpa_supplicant -Dnl80211 -i wlan0 -c /data/NXP…bin/

wpa_supplicant.conf

• Open another adb shell.

• Go to /data/NXP..bin/

• Start wpa_cli

./wpa_cli

• Run the commands to configure the DUT through CLI:

SET sae_groups 19

add_network

set_network 0 ssid "Wi-Fi-5.2.1"

set_network 0 ieee80211w 2

set_network 0 key_mgmt SAE

set_network 0 proto RSN

set_network 0 pairwise CCMP

set_network 0 group CCMP

set_network 0 psk "0123456789abcdef0123456789abcde"

enable_network 0

select_network 0

• Give the static ip to the wireless interface:

ifconfig wlan0 <wireless ip address>

• Ping the PC end-point ip

ping -I wlan0 <PC end-point ip>

Re-association using PMK caching

• Disconnect the STAUT from the AP

disconnect

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• Re-associate the STAUT to the AP

reassociate

• Delete the profile once you have finished the test case

remove_network 0

4.2.2 WPA3 test case 5.2.2

Associate STAUT to AP using group 19

• Start wpa_supplicant utility located in /vendor/bin/hw/ directory

./wpa_supplicant -Dnl80211 -i wlan0 -c /data/NXP…bin/

wpa_supplicant.conf

• Open another adb shell.

• Go to /data/NXP..bin/

• Start wpa_cli

./wpa_cli

• Run the commands to configure the DUT through CLI:

SET sae_groups 19

add_network

set_network 0 ssid "Wi-Fi-5.2.2"

set_network 0 ieee80211w 2

set_network 0 key_mgmt SAE

set_network 0 proto RSN

set_network 0 pairwise CCMP

set_network 0 group CCMP

set_network 0 psk "12345678"

enable_network 0

select_network 0

• Give the static ip to the wireless interface:

ifconfig wlan0 <wireless ip address>

• Ping the PC end-point ip

ping -I wlan0 <PC end-point ip>

• Delete the profile once you have finished the test case

remove_network 0

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4.2.3 WPA3 test case 5.2.3

Associate STAUT to AP using group 19

• Start wpa_supplicant utility located in /vendor/bin/hw/ directory

./wpa_supplicant -Dnl80211 -i wlan0 -c /data/NXP…bin/

wpa_supplicant.conf

• Open another adb shell.

• Go to /data/NXP..bin/

• Start wpa_cli

./wpa_cli

• Run the commands to configure the DUT through CLI:

SET sae_groups 19

add_network

set_network 0 ssid "Wi-Fi-5.2.3"

set_network 0 ieee80211w 2

set_network 0 key_mgmt SAE

set_network 0 proto RSN

set_network 0 pairwise CCMP

set_network 0 group CCMP

set_network 0 psk "12345678"

enable_network 0

select_network 0

• Give the static ip to the wireless interface:

ifconfig wlan0 <wireless ip address>

• Ping the PC end-point ip

ping -I wlan0 <PC end-point ip>

• Delete the profile once you have finished the test case

remove_network 0

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4.2.4 WPA3 test case 5.2.4

Associate STAUT to AP using group 19

• Start wpa_supplicant utility located in /vendor/bin/hw/ directory

./wpa_supplicant -Dnl80211 -i wlan0 -c /data/NXP…bin/

wpa_supplicant.conf

• Open another adb shell.

• Go to /data/NXP..bin/

• Start wpa_cli

./wpa_cli

• Run the commands to configure the DUT through CLI:

SET sae_groups 19

add_network

set_network 0 ssid "Wi-Fi-5.2.4"

set_network 0 ieee80211w 1

set_network 0 key_mgmt SAE WPA-PSK

set_network 0 proto RSN

set_network 0 pairwise CCMP

set_network 0 group CCMP

set_network 0 psk "12345678123456781234567812345678"

enable_network 0

select_network 0

• Give the static ip to the wireless interface:

ifconfig wlan0 <wireless ip address>

• Ping the PC end-point ip

ping -I wlan0 <PC end-point ip>

• Delete the profile once you have finished the test case

remove_network 0

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4.2.5 WPA3 test case 5.2.5

Associate STAUT to AP using group 20

• Start wpa_supplicant utility located in /vendor/bin/hw/ directory

./wpa_supplicant -Dnl80211 -i wlan0 -c /data/NXP…bin/

wpa_supplicant.conf

• Open another adb shell.

• Go to /data/NXP..bin/

• Start wpa_cli

./wpa_cli

• Run the commands to configure the DUT through CLI:

SET sae_groups 20

add_network

set_network 0 ssid "Wi-Fi-5.2.5"

set_network 0 ieee80211w 2

set_network 0 key_mgmt SAE

set_network 0 proto RSN

set_network 0 pairwise CCMP

set_network 0 group CCMP

set_network 0 psk "12345678"

enable_network 0

select_network 0

• Give the static ip to the wireless interface:

ifconfig wlan0 <wireless ip address>

• Ping the PC end-point ip

ping -I wlan0 <PC end-point ip>

• Delete the profile once you have finished the test case

remove_network 0

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Associate STAUT to AP using group 21

• Start wpa_supplicant utility located in /vendor/bin/hw/ directory

./wpa_supplicant -Dnl80211 -i wlan0 -c /data/NXP…bin/

wpa_supplicant.conf

• Open another adb shell.

• Go to /data/NXP..bin/

• Start wpa_cli

./wpa_cli

• Run the commands to configure the DUT through CLI:

SET sae_groups 21

add_network

set_network 0 ssid "Wi-Fi-5.2.5"

set_network 0 ieee80211w 2

set_network 0 key_mgmt SAE

set_network 0 proto RSN

set_network 0 pairwise CCMP

set_network 0 group CCMP

set_network 0 psk "12345678"

enable_network 0

select_network 0

• Give the static ip to the wireless interface:

ifconfig wlan0 <wireless ip address>

• Ping the PC end-point ip

ping -I wlan0 <PC end-point ip>

• Delete the profile once you have finished the test case

remove_network 0

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Category: Networking

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