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rtlwifi: btcoex: 21a 2ant: monitor if bt is slave or not

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We monitor the packet counter to guess if the bt is slave or not, and
when bt is slave, it may receive packet at any time, so we will have to
take care about it

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Yan-Hsuan Chuang 2017-04-13 13:06:53 -05:00 committed by Kalle Valo
parent 930d2bf242
commit 4776d34907
1 changed files with 8 additions and 0 deletions
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8
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
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@ -268,6 +268,7 @@ void btc8821a2ant_limited_rx(struct btc_coexist *btcoexist, bool force_exec,
static void btc8821a2ant_monitor_bt_ctr(struct btc_coexist *btcoexist)
{
struct rtl_priv *rtlpriv = btcoexist->adapter;
struct btc_bt_link_info *bt_link_info = &btcoexist->bt_link_info;
u32 reg_hp_txrx, reg_lp_txrx, u4tmp;
u32 reg_hp_tx = 0, reg_hp_rx = 0, reg_lp_tx = 0, reg_lp_rx = 0;
@ -287,6 +288,13 @@ static void btc8821a2ant_monitor_bt_ctr(struct btc_coexist *btcoexist)
coex_sta->low_priority_tx = reg_lp_tx;
coex_sta->low_priority_rx = reg_lp_rx;
if ((coex_sta->low_priority_rx >= 950) &&
(coex_sta->low_priority_rx >= coex_sta->low_priority_tx) &&
(!coex_sta->under_ips))
bt_link_info->slave_role = true;
else
bt_link_info->slave_role = false;
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], High Priority Tx/Rx (reg 0x%x) = 0x%x(%d)/0x%x(%d)\n",
reg_hp_txrx, reg_hp_tx, reg_hp_tx, reg_hp_rx, reg_hp_rx);