ath9k: Read and write the TSF via debugfs

This patch adds an ath9k specific entry to read, write and reset the TSF into the debugfs, like in ath5k. This makes debugging the IBSS handling of wifi drivers _much_ easier.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index f2922bab7761..1a49743151ba 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -3755,6 +3755,13 @@ u64 ath9k_hw_gettsf64(struct ath_hal *ah)
         return tsf;
 }
 
+void ath9k_hw_settsf64(struct ath_hal *ah, u64 tsf64)
+{
+        REG_WRITE(ah, AR_TSF_L32, 0x00000000);
+        REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
+        REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
+}
+
 void ath9k_hw_reset_tsf(struct ath_hal *ah)
 {
         int count;