From 5719efdde1d0ae8670b96eb8748d1a0dc6a37be2 Mon Sep 17 00:00:00 2001 From: Bruno Randolf Date: Tue, 25 Jan 2011 13:15:33 +0900 Subject: ath: Add function to check if 4.9GHz channels are allowed This adds a helper function to ath/regd.c which can be asked if 4.9GHz channels are allowed for a given regulatory domain code. This keeps the knowledge of regdomains and defines like MKK9_MKKC in one place. I'm passing the regdomain code instead of the ath_regulatory structure because this needs to be called quite early in the driver inititalization where ath_regulatory is not available yet in ath5k. I'm using MKK9_MKKC only because this is the regdomain in the 802.11j enabled sample cards we got from our vendor. I found some hints in HAL code that this is used by Atheros to indicate 4.9GHz channels support and that there might be other domain codes as well, but as I don't have any documentation I'm just putting in what I need right now. It can be extended later. Signed-off-by: Bruno Randolf Signed-off-by: John W. Linville --- drivers/net/wireless/ath/regd.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/net/wireless/ath/regd.c') diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index 2b14775e6bc6..f828f294ba89 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -158,6 +158,13 @@ ieee80211_regdomain *ath_world_regdomain(struct ath_regulatory *reg) } } +bool ath_is_49ghz_allowed(u16 regdomain) +{ + /* possibly more */ + return regdomain == MKK9_MKKC; +} +EXPORT_SYMBOL(ath_is_49ghz_allowed); + /* Frequency is one where radar detection is required */ static bool ath_is_radar_freq(u16 center_freq) { -- cgit v1.2.2