brcmsmac: export firmware version to ethtool

This exports the firmware version in use to userspace through ethtool.

root@OpenWrt:/# ethtool -i wlan0
firmware-version: 610.812

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index 8ef02dca8f8c..0c8e998bfb1e 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -7810,9 +7810,14 @@ void brcms_c_init(struct brcms_c_info *wlc, bool mute_tx)
 
         /* read the ucode version if we have not yet done so */
         if (wlc->ucode_rev == 0) {
-                wlc->ucode_rev =
-                    brcms_b_read_shm(wlc->hw, M_BOM_REV_MAJOR) << NBITS(u16);
-                wlc->ucode_rev |= brcms_b_read_shm(wlc->hw, M_BOM_REV_MINOR);
+                u16 rev;
+                u16 patch;
+
+                rev = brcms_b_read_shm(wlc->hw, M_BOM_REV_MAJOR);
+                patch = brcms_b_read_shm(wlc->hw, M_BOM_REV_MINOR);
+                wlc->ucode_rev = (rev << NBITS(u16)) | patch;
+                snprintf(wlc->wiphy->fw_version,
+                         sizeof(wlc->wiphy->fw_version), "%u.%u", rev, patch);
         }
 
         /* ..now really unleash hell (allow the MAC out of suspend) */