Wl12xx driver: Difference between revisions
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The wl12xx driver is used by the Wifi / BT chip present on the APF6Dev board. Before using the wifi, you have to calibrate the chip. This page details how to do it. | The wl12xx driver is used by the Wifi / BT chip present on the [[APF6Dev]] board. Before using the wifi, you have to calibrate the chip. This page details how to do it. | ||
==Installation== | ==Installation== | ||
| Line 6: | Line 6: | ||
* Be sure to have CONFIG_NL80211_TESTMODE enabled. | * Be sure to have CONFIG_NL80211_TESTMODE enabled. | ||
<pre> | <pre class="config"> | ||
Networking support ---> | Networking support ---> | ||
Wireless ---> | Wireless ---> | ||
| Line 17: | Line 17: | ||
* You need the calibrator tool from the ti-utils package. | * You need the calibrator tool from the ti-utils package. | ||
<pre> | <pre class="config"> | ||
Target package ---> | Target package ---> | ||
Hardware handling ---> | Hardware handling ---> | ||
Revision as of 17:23, 28 January 2014
The wl12xx driver is used by the Wifi / BT chip present on the APF6Dev board. Before using the wifi, you have to calibrate the chip. This page details how to do it.
Installation
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
- 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
- Load the wl12xx driver.
# modprobe wl12xx # modprobe wlcore_sdio 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
- Unload the driver
# rmmod wlcore_sdio
- Reset the chip. (or reboot the board)
# echo 40 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio40/direction mmc0: card 0001 removed # echo 1 > /sys/class/gpio/gpio40/value sdhci-esdhc-imx 2190000.usdhc: card claims to support voltages below defined range mmc0: queuing unknown CIS tuple 0x91 (3 bytes) mmc0: new SDIO card at address 0001
- Set a MAC address.
# calibrator set nvs_mac /lib/firmware/ti-connectivity/wl1271-nvs.bin 00:1E:AC:00:51:22
- Load the driver.
# modprobe wlcore_sdio
- 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
Congratulations ! Your chip is calibrated. :)
Going further
- Now you can use the general instructions here to setup your WiFi network.
Links
http://wireless.kernel.org/en/users/Drivers/wl12xx/calibrator
http://processors.wiki.ti.com/index.php/WL12xx_NLCP_Calibration_Process
