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ath9k_htc: add new WMI_REG_RMW_CMDID command

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Since usb bus add extra delay on each request, a command
with read + write requests is too expensive. We can dramtically
reduce usb load by moving this command to firmware.

In my tests, this patch will reduce channel scan time
for about 5-10 seconds.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Oleksij Rempel
2015-03-22 19:29:46 +01:00
committed by Kalle Valo
parent e480e13448
commit 8badb50cfa
6 changed files with 175 additions and 6 deletions
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5
drivers/net/wireless/ath/ath9k/htc.h
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@@ -444,6 +444,10 @@ static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
#define OP_BT_SCAN BIT(4)
#define OP_TSF_RESET BIT(6)
enum htc_op_flags {
HTC_FWFLAG_NO_RMW,
};
struct ath9k_htc_priv {
struct device *dev;
struct ieee80211_hw *hw;
@@ -482,6 +486,7 @@ struct ath9k_htc_priv {
bool reconfig_beacon;
unsigned int rxfilter;
unsigned long op_flags;
unsigned long fw_flags;
struct ath9k_hw_cal_data caldata;
struct ath_spec_scan_priv spec_priv;