Difference between revisions of "Wl12xx driver"
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<pre class="apf"> | <pre class="apf"> | ||
# modprobe wlcore debug_level=4; modprobe wl12xx; modprobe wlcore_sdio | # modprobe wlcore debug_level=4; modprobe wl12xx; modprobe wlcore_sdio | ||
| + | </pre> | ||
| + | |||
| + | * You can put the reset instructions in a script: | ||
| + | <pre class="apf"> | ||
| + | #/bin/sh | ||
| + | |||
| + | if [ ! -d /sys/class/gpio/gpio40 ]; then | ||
| + | echo 40 > /sys/class/gpio/export | ||
| + | echo out > /sys/class/gpio/gpio40/direction | ||
| + | fi | ||
| + | |||
| + | echo 0 > /sys/class/gpio/gpio40/value | ||
| + | sleep 1 | ||
| + | echo 1 > /sys/class/gpio/gpio40/value | ||
</pre> | </pre> | ||
Revision as of 16:22, 16 September 2015
The wl12xx driver is used by the Wi-Fi/Bluetooth chip present on the APF6 module. Before using the Wi-Fi, you have to calibrate the chip. This page details how to do it.
Contents
Installation
- On APF6, all needed tools/drivers are installed by default. You can directly switch to calibration.
Linux
- Be sure to have CONFIG_NL80211_TESTMODE enabled.
Networking support ---> Wireless ---> <*> cfg80211 - wireless configuration API [*] nl80211 testmode command
Buildroot
- You need the calibrator tool from the ti-utils package.
Target package ---> Hardware handling ---> [*] ti-utils
Calibration
 |
Note: Following instructions are only needed the first time after you flashed your rootfs. |
- Poweroff then on your board. You have limited time to execute the following commands so don't be lazy ;-).
- Use the calibrator tool to generate the new calibration data. This will generate a file called new-nvs.bin.
# calibrator set ref_nvs /usr/share/ti-utils/ini_files/127x/TQS_S_2.6.ini
- Copy the file to the right place.
# cp new-nvs.bin /lib/firmware/ti-connectivity/wl1271-nvs.bin
- Set a MAC address (here for example an Armadeus Systems one).
# calibrator set nvs_mac /lib/firmware/ti-connectivity/wl1271-nvs.bin 00:1E:AC:00:51:22
- Load the wl12xx driver.
# modprobe wl12xx # modprobe wlcore_sdio wl1271_sdio mmc0:0001:2: legacy platform data not found, trying device tree ... wlcore: loaded
- Calibrate the chip.
# calibrator plt calibrate dual wlcore: power up wlcore: firmware booted in PLT mode PLT_ON (PLT 6.3.10.0.133) wlcore: testmode cmd: radio status=0 The path to NVS file not provided, use default (/lib/firmware/ti-connectivity/wl1271-nvs.bin) wlcore: power down
- Reset the chip. (or reboot the board)
# echo 40 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio40/direction # echo 0 > /sys/class/gpio/gpio40/value; sleep 1 # echo 1 > /sys/class/gpio/gpio40/value
- Congratulations ! Your chip is calibrated. :)
Daily use
- Reset the chip: (or reboot the board)
# echo 40 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio40/direction # echo 0 > /sys/class/gpio/gpio40/value; sleep 1 # echo 1 > /sys/class/gpio/gpio40/value
- Load the wl12xx driver:
# modprobe wl12xx # modprobe wlcore_sdio wl1271_sdio mmc0:0001:2: legacy platform data not found, trying device tree ... wlcore: loaded
- Power up the wireless interface:
# ifconfig wlan0 up wlcore: firmware booted (Rev 6.3.10.0.133) IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Going further
- Now you can use the general instructions here to setup your Wi-Fi network (as client/station (STA)).
- If you want to use your APF board as an access point then take a look at APF as Wi-Fi Access Point (AP).
- It should be possible to use this chip in Multi-Role (STA+AP), but currently we have a firmware reboot problem when following [1]. If anyone knows how to proceed, please send us an email or join us on IRC ;-).
Tips
- To have more debug messages of firmware loading/boot process, one may load drivers this way:
# modprobe wlcore debug_level=4; modprobe wl12xx; modprobe wlcore_sdio
- You can put the reset instructions in a script:
#/bin/sh
if [ ! -d /sys/class/gpio/gpio40 ]; then
echo 40 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio40/direction
fi
echo 0 > /sys/class/gpio/gpio40/value
sleep 1
echo 1 > /sys/class/gpio/gpio40/value
