WL12XX Driver wl12xx_sdio.ko not being built

Hi Bruno,

You are expected to see the following modules: compat.ko, cfg80211.ko, mac80211.ko, wl12xx.ko, wl12xx_sdio.ko
It seems to me that your build procedure is correct.

I suspect the ".config" file in your base kernel.

Can you check if "CONFIG_WLAN" & "CONFIG_WL12XX_PLATFORM_DATA" are set as "y" in your config file?

Regards,
Gigi Joseph.

Hi Joseph,

CONFIG_WL12XX_PLATFORM_DATA was not set as 'y' in my base config file. 

I did set it but I still do not get wl12xx.ko and wl12xx_sdio.ko

Thanks,

Bruno

Hi Bruno,

In addition to it, there are some more CONFIGs that you need to enable.
Please see: https://github.com/TI-ECS/build-utilites/blob/master/wlan_enable_config.sh for the complete list.

Regards,
Gigi Joseph.

Hi Joseph,

There were a number of config items that were not set and I fixed these in my base .config file. It does look like it tries to build the previously missing modules but now I get the following compile error

  CC      /home/wlan/compat-wireless/drivers/net/wireless/wl12xx/sdio.o
/home/wlan/compat-wireless/drivers/net/wireless/wl12xx/sdio.c: In function 'wl12xx_sdio_power_on':
/home/wlan/compat-wireless/drivers/net/wireless/wl12xx/sdio.c:145: error: void value not ignored as it ought to be
/home/wlan/compat-wireless/drivers/net/wireless/wl12xx/sdio.c: In function 'wl12xx_sdio_power_off':
/home/wlan/compat-wireless/drivers/net/wireless/wl12xx/sdio.c:171: error: void value not ignored as it ought to be
make[4]: *** [/home/wlan/compat-wireless/drivers/net/wireless/wl12xx/sdio.o] Error 1

This error is due to the fact that the function mmc_power_restore_host used in sdio.c (see below) is defined as returning a void in include/linux/mmx/host.h in the base kernel but here is expecting a value returned.

        ret = mmc_power_restore_host(card->host);
        if (ret < 0) {
            pm_runtime_put_sync(&card->dev);
            goto out;
        }

This looks like a kernel compatibility type of issue. The build instructions for the WLAN components I downloaded do assume kernel version 2.6.35 and up and I am using 2.6.35.

Bruno


Bruno

Hi Bruno,

You can change the above to something like below:

    ret = pm_runtime_get_sync(&func->dev);

    if (ret) {
        wl1271_debug(DEBUG_SDIO, "pm_runtime_get_sync returned: %d, ignoring", ret);
        ret = 0;
    }

    mmc_power_restore_host(func->card->host);

Regards,
Gigi Joseph.

I've modified the code to get it to compile but I'm hitting a number of other compile errors and I'm finding that the build process for the WLAN components is not at all straightforward. I got this error below which I did not get before.

  CC [M]  /home/wlan/compat-wireless/net/mac80211/work.o
  CC [M]  /home/wlan/compat-wireless/net/mac80211/iface.o
  CC [M]  /home/wlan/compat-wireless/net/mac80211/rate.o
/home/wlan/compat-wireless/net/mac80211/rate.c:27: error: 'CONFIG_COMPAT_MAC80211_RC_DEFAULT' undeclared here (not in a function)

I "fixed" it by deleting the compat-wireless directory. The WLAN build scripts then pull down the sources again from the repository but this over-writes my changes and I go back to my original error. So I'm currently trying to figure out if I'm doing this the right way or if there is some other configuration item that is missing.

Any ideas or suggestions?

Thanks,
Bruno