diff options
| author | Rajkumar Manoharan <rmanohar@qca.qualcomm.com> | 2012-10-15 15:29:50 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-10-29 15:19:29 -0400 |
| commit | 2097fdd7ebdb1674aaf7343b7a1d6cc2758c1dff (patch) | |
| tree | c1d05e894ffbc45b4cb1aa69485228b2dc716701 /drivers/net/wireless/ath/ath9k/ar9003_mci.h | |
| parent | e9f9fd8cdc5fcb718e2ce778cb5e0eea27e2fdc8 (diff) | |
| download | lwn-2097fdd7ebdb1674aaf7343b7a1d6cc2758c1dff.tar.gz lwn-2097fdd7ebdb1674aaf7343b7a1d6cc2758c1dff.zip | |
ath9k_hw: Fix frequent BT rx recovery
While resuming from S3, BT host issues HCI reset command and it
causes BT firmware to busy with security key calculation. At this
movement, WLAN detects MCI hardware error of MCI_CONT_INFO_TIMEOUT
and then it starts the recovery sequence repeatedly. Too many
recovery sequences would exhaust the BT kernel message pool. This
patch imposes a duration between consecutive BT recovery procedure.
Thus it solves BT firmware panic issue reported in AR9565.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_mci.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_mci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h index 0910310ae834..3e51f54b0122 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h @@ -18,6 +18,7 @@ #define AR9003_MCI_H #define MCI_FLAG_DISABLE_TIMESTAMP 0x00000001 /* Disable time stamp */ +#define MCI_RECOVERY_DUR_TSF (100 * 1000) /* 100 ms */ /* Default remote BT device MCI COEX version */ #define MCI_GPM_COEX_MAJOR_VERSION_DEFAULT 3 |