Return-path: Received: from mail-oi0-f66.google.com ([209.85.218.66]:35899 "EHLO mail-oi0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753021AbdEPNUO (ORCPT ); Tue, 16 May 2017 09:20:14 -0400 Received: by mail-oi0-f66.google.com with SMTP id w138so3299711oiw.3 for ; Tue, 16 May 2017 06:20:13 -0700 (PDT) From: Larry Finger To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, Ping-Ke Shih , Larry Finger , Yan-Hsuan Chuang , Birming Chiu , Shaofu , Steven Ting Subject: [PATCH 07/10] rtlwifi: btcoex: 23b 1ant: monitor wifi and BT counter Date: Tue, 16 May 2017 08:19:54 -0500 Message-Id: <20170516131957.9513-8-Larry.Finger@lwfinger.net> (sfid-20170516_152024_647642_13BB0722) In-Reply-To: <20170516131957.9513-1-Larry.Finger@lwfinger.net> References: <20170516131957.9513-1-Larry.Finger@lwfinger.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ping-Ke Shih In field debug, we check wifi and BT counter to analyze problems. Signed-off-by: Ping-Ke Shih Signed-off-by: Larry Finger Cc: Yan-Hsuan Chuang Cc: Birming Chiu Cc: Shaofu Cc: Steven Ting --- .../realtek/rtlwifi/btcoexist/halbtc8723b1ant.c | 141 +++++++++++++++++++-- .../realtek/rtlwifi/btcoexist/halbtc8723b1ant.h | 15 +++ 2 files changed, 145 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c index 523e1acfe1cf..437007dd0db0 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c @@ -210,11 +210,24 @@ static void halbtc8723b1ant_limited_rx(struct btc_coexist *btcoexist, btcoexist->btc_set(btcoexist, BTC_SET_ACT_AGGREGATE_CTRL, NULL); } +static void halbtc8723b1ant_query_bt_info(struct btc_coexist *btcoexist) +{ + u8 h2c_parameter[1] = {0}; + + coex_sta->c2h_bt_info_req_sent = true; + + /* trigger */ + h2c_parameter[0] |= BIT(0); + + btcoexist->btc_fill_h2c(btcoexist, 0x61, 1, h2c_parameter); +} + static void halbtc8723b1ant_monitor_bt_ctr(struct btc_coexist *btcoexist) { u32 reg_hp_txrx, reg_lp_txrx, u32tmp; u32 reg_hp_tx = 0, reg_hp_rx = 0; u32 reg_lp_tx = 0, reg_lp_rx = 0; + static u32 num_of_bt_counter_chk; reg_hp_txrx = 0x770; reg_lp_txrx = 0x774; @@ -232,25 +245,122 @@ static void halbtc8723b1ant_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_tx > 1050) && + (!coex_sta->c2h_bt_inquiry_page)) + coex_sta->pop_event_cnt++; + /* reset counter */ btcoexist->btc_write_1byte(btcoexist, 0x76e, 0xc); + + /* This part is for wifi FW and driver to update BT's status as + * disabled. + * + * The flow is as the following + * 1. disable BT + * 2. if all BT Tx/Rx counter = 0, after 6 sec we query bt info + * 3. Because BT will not rsp from mailbox, so wifi fw will know BT is + * disabled + * + * 4. FW will rsp c2h for BT that driver will know BT is disabled. + */ + if ((reg_hp_tx == 0) && (reg_hp_rx == 0) && (reg_lp_tx == 0) && + (reg_lp_rx == 0)) { + num_of_bt_counter_chk++; + if (num_of_bt_counter_chk == 3) + halbtc8723b1ant_query_bt_info(btcoexist); + } else { + num_of_bt_counter_chk = 0; + } } -static void halbtc8723b1ant_query_bt_info(struct btc_coexist *btcoexist) +static void halbtc8723b1ant_monitor_wifi_ctr(struct btc_coexist *btcoexist) { - struct rtl_priv *rtlpriv = btcoexist->adapter; - u8 h2c_parameter[1] = {0}; + s32 wifi_rssi = 0; + bool wifi_busy = false, wifi_under_b_mode = false; + static u8 cck_lock_counter; + u32 total_cnt; - coex_sta->c2h_bt_info_req_sent = true; + btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_BUSY, &wifi_busy); + btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi); + btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_B_MODE, + &wifi_under_b_mode); - /* trigger */ - h2c_parameter[0] |= BIT0; + if (coex_sta->under_ips) { + coex_sta->crc_ok_cck = 0; + coex_sta->crc_ok_11g = 0; + coex_sta->crc_ok_11n = 0; + coex_sta->crc_ok_11n_agg = 0; + + coex_sta->crc_err_cck = 0; + coex_sta->crc_err_11g = 0; + coex_sta->crc_err_11n = 0; + coex_sta->crc_err_11n_agg = 0; + } else { + coex_sta->crc_ok_cck = + btcoexist->btc_read_4byte(btcoexist, 0xf88); + coex_sta->crc_ok_11g = + btcoexist->btc_read_2byte(btcoexist, 0xf94); + coex_sta->crc_ok_11n = + btcoexist->btc_read_2byte(btcoexist, 0xf90); + coex_sta->crc_ok_11n_agg = + btcoexist->btc_read_2byte(btcoexist, 0xfb8); + + coex_sta->crc_err_cck = + btcoexist->btc_read_4byte(btcoexist, 0xf84); + coex_sta->crc_err_11g = + btcoexist->btc_read_2byte(btcoexist, 0xf96); + coex_sta->crc_err_11n = + btcoexist->btc_read_2byte(btcoexist, 0xf92); + coex_sta->crc_err_11n_agg = + btcoexist->btc_read_2byte(btcoexist, 0xfba); + } - RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, - "[BTCoex], Query Bt Info, FW write 0x61 = 0x%x\n", - h2c_parameter[0]); + /* reset counter */ + btcoexist->btc_write_1byte_bitmask(btcoexist, 0xf16, 0x1, 0x1); + btcoexist->btc_write_1byte_bitmask(btcoexist, 0xf16, 0x1, 0x0); + + if ((wifi_busy) && (wifi_rssi >= 30) && (!wifi_under_b_mode)) { + total_cnt = coex_sta->crc_ok_cck + coex_sta->crc_ok_11g + + coex_sta->crc_ok_11n + coex_sta->crc_ok_11n_agg; + + if ((coex_dm->bt_status == BT_8723B_1ANT_BT_STATUS_ACL_BUSY) || + (coex_dm->bt_status == + BT_8723B_1ANT_BT_STATUS_ACL_SCO_BUSY) || + (coex_dm->bt_status == BT_8723B_1ANT_BT_STATUS_SCO_BUSY)) { + if (coex_sta->crc_ok_cck > + (total_cnt - coex_sta->crc_ok_cck)) { + if (cck_lock_counter < 3) + cck_lock_counter++; + } else { + if (cck_lock_counter > 0) + cck_lock_counter--; + } - btcoexist->btc_fill_h2c(btcoexist, 0x61, 1, h2c_parameter); + } else { + if (cck_lock_counter > 0) + cck_lock_counter--; + } + } else { + if (cck_lock_counter > 0) + cck_lock_counter--; + } + + if (!coex_sta->pre_ccklock) { + if (cck_lock_counter >= 3) + coex_sta->cck_lock = true; + else + coex_sta->cck_lock = false; + } else { + if (cck_lock_counter == 0) + coex_sta->cck_lock = false; + else + coex_sta->cck_lock = true; + } + + if (coex_sta->cck_lock) + coex_sta->cck_ever_lock = true; + + coex_sta->pre_ccklock = coex_sta->cck_lock; } static bool btc8723b1ant_is_wifi_status_changed(struct btc_coexist *btcoexist) @@ -1818,6 +1928,7 @@ static void halbtc8723b1ant_run_coexist_mechanism(struct btc_coexist *btcoexist) } } +/* force coex mechanism to reset */ static void halbtc8723b1ant_init_coex_dm(struct btc_coexist *btcoexist) { /* sw all off */ @@ -1825,6 +1936,7 @@ static void halbtc8723b1ant_init_coex_dm(struct btc_coexist *btcoexist) halbtc8723b1ant_ps_tdma(btcoexist, FORCE_EXEC, false, 8); halbtc8723b1ant_coex_table_with_type(btcoexist, FORCE_EXEC, 0); + coex_sta->pop_event_cnt = 0; } static void halbtc8723b1ant_init_hw_config(struct btc_coexist *btcoexist, @@ -2655,6 +2767,7 @@ void ex_halbtc8723b1ant_coex_dm_reset(struct btc_coexist *btcoexist) void ex_halbtc8723b1ant_periodical(struct btc_coexist *btcoexist) { struct rtl_priv *rtlpriv = btcoexist->adapter; + struct btc_bt_link_info *bt_link_info = &btcoexist->bt_link_info; struct btc_board_info *board_info = &btcoexist->board_info; struct btc_stack_info *stack_info = &btcoexist->stack_info; static u8 dis_ver_info_cnt; @@ -2689,9 +2802,15 @@ void ex_halbtc8723b1ant_periodical(struct btc_coexist *btcoexist) if (!btcoexist->auto_report_1ant) { halbtc8723b1ant_query_bt_info(btcoexist); - halbtc8723b1ant_monitor_bt_ctr(btcoexist); halbtc8723b1ant_monitor_bt_enable_disable(btcoexist); } else { + halbtc8723b1ant_monitor_bt_ctr(btcoexist); + halbtc8723b1ant_monitor_wifi_ctr(btcoexist); + + if ((coex_sta->high_priority_tx + coex_sta->high_priority_rx < 50) && + bt_link_info->hid_exist) + bt_link_info->hid_exist = false; + if (btc8723b1ant_is_wifi_status_changed(btcoexist) || coex_dm->auto_tdma_adjust) { halbtc8723b1ant_run_coexist_mechanism(btcoexist); diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h index cd6369ef0e3a..cf14db5fa759 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h @@ -159,6 +159,21 @@ struct coex_sta_8723b_1ant { bool c2h_bt_inquiry_page; u8 bt_retry_cnt; u8 bt_info_ext; + bool cck_ever_lock; + u32 pop_event_cnt; + + u32 crc_ok_cck; + u32 crc_ok_11g; + u32 crc_ok_11n; + u32 crc_ok_11n_agg; + + u32 crc_err_cck; + u32 crc_err_11g; + u32 crc_err_11n; + u32 crc_err_11n_agg; + + bool cck_lock; + bool pre_ccklock; }; /************************************************************************* -- 2.12.0