2022-09-20 01:12:53

by Ping-Ke Shih

[permalink] [raw]
Subject: [PATCH 8/9] wifi: rtw89: coex: add logic to control BT scan priority

From: Ching-Te Ku <[email protected]>

Add control logic to operate Wi-Fi to BT scoreboard to control BT scan
priority. And patch mechanism parameter to enhance Wi-Fi throughput while
coexisting with BT profile & BT scan. Set PTA priority let Wi-Fi BT can RX
at the same time.

Signed-off-by: Ching-Te Ku <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
---
drivers/net/wireless/realtek/rtw89/coex.c | 114 ++++++++++++++++------
drivers/net/wireless/realtek/rtw89/core.h | 3 +-
2 files changed, 85 insertions(+), 32 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index ef6c5701ebcf5..d3d32f25071e8 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/drivers/net/wireless/realtek/rtw89/coex.c
@@ -77,21 +77,21 @@ static const struct rtw89_btc_fbtc_tdma t_def[] = {

static const struct rtw89_btc_fbtc_slot s_def[] = {
[CXST_OFF] = __DEF_FBTC_SLOT(100, 0x55555555, SLOT_MIX),
- [CXST_B2W] = __DEF_FBTC_SLOT(5, 0x5a5a5a5a, SLOT_ISO),
- [CXST_W1] = __DEF_FBTC_SLOT(70, 0x5a5a5a5a, SLOT_ISO),
- [CXST_W2] = __DEF_FBTC_SLOT(70, 0x5a5a5aaa, SLOT_ISO),
- [CXST_W2B] = __DEF_FBTC_SLOT(15, 0x5a5a5a5a, SLOT_ISO),
- [CXST_B1] = __DEF_FBTC_SLOT(100, 0x55555555, SLOT_MIX),
- [CXST_B2] = __DEF_FBTC_SLOT(7, 0x6a5a5a5a, SLOT_MIX),
- [CXST_B3] = __DEF_FBTC_SLOT(5, 0x55555555, SLOT_MIX),
- [CXST_B4] = __DEF_FBTC_SLOT(50, 0x55555555, SLOT_MIX),
- [CXST_LK] = __DEF_FBTC_SLOT(20, 0x5a5a5a5a, SLOT_ISO),
+ [CXST_B2W] = __DEF_FBTC_SLOT(5, 0xea5a5a5a, SLOT_ISO),
+ [CXST_W1] = __DEF_FBTC_SLOT(70, 0xea5a5a5a, SLOT_ISO),
+ [CXST_W2] = __DEF_FBTC_SLOT(70, 0xea5a5aaa, SLOT_ISO),
+ [CXST_W2B] = __DEF_FBTC_SLOT(15, 0xea5a5a5a, SLOT_ISO),
+ [CXST_B1] = __DEF_FBTC_SLOT(100, 0xe5555555, SLOT_MIX),
+ [CXST_B2] = __DEF_FBTC_SLOT(7, 0xea5a5a5a, SLOT_MIX),
+ [CXST_B3] = __DEF_FBTC_SLOT(5, 0xe5555555, SLOT_MIX),
+ [CXST_B4] = __DEF_FBTC_SLOT(50, 0xe5555555, SLOT_MIX),
+ [CXST_LK] = __DEF_FBTC_SLOT(20, 0xea5a5a5a, SLOT_ISO),
[CXST_BLK] = __DEF_FBTC_SLOT(250, 0x55555555, SLOT_MIX),
- [CXST_E2G] = __DEF_FBTC_SLOT(20, 0x6a5a5a5a, SLOT_MIX),
+ [CXST_E2G] = __DEF_FBTC_SLOT(20, 0xea5a5a5a, SLOT_MIX),
[CXST_E5G] = __DEF_FBTC_SLOT(20, 0xffffffff, SLOT_MIX),
- [CXST_EBT] = __DEF_FBTC_SLOT(20, 0x55555555, SLOT_MIX),
+ [CXST_EBT] = __DEF_FBTC_SLOT(20, 0xe5555555, SLOT_MIX),
[CXST_ENULL] = __DEF_FBTC_SLOT(7, 0xaaaaaaaa, SLOT_ISO),
- [CXST_WLK] = __DEF_FBTC_SLOT(250, 0x6a5a6a5a, SLOT_MIX),
+ [CXST_WLK] = __DEF_FBTC_SLOT(250, 0xea5a5a5a, SLOT_MIX),
[CXST_W1FDD] = __DEF_FBTC_SLOT(35, 0xfafafafa, SLOT_ISO),
[CXST_B1FDD] = __DEF_FBTC_SLOT(100, 0xffffffff, SLOT_MIX),
};
@@ -99,13 +99,13 @@ static const struct rtw89_btc_fbtc_slot s_def[] = {
static const u32 cxtbl[] = {
0xffffffff, /* 0 */
0xaaaaaaaa, /* 1 */
- 0x55555555, /* 2 */
- 0x66555555, /* 3 */
- 0x66556655, /* 4 */
+ 0xe5555555, /* 2 */
+ 0xee555555, /* 3 */
+ 0xd5555555, /* 4 */
0x5a5a5a5a, /* 5 */
- 0x5a5a5aaa, /* 6 */
- 0xaa5a5a5a, /* 7 */
- 0x6a5a5a5a, /* 8 */
+ 0xfa5a5a5a, /* 6 */
+ 0xda5a5a5a, /* 7 */
+ 0xea5a5a5a, /* 8 */
0x6a5a5aaa, /* 9 */
0x6a5a6a5a, /* 10 */
0x6a5a6aaa, /* 11 */
@@ -264,6 +264,9 @@ enum btc_cx_poicy_type {
/* TDMA off + pri: WL_Hi-Tx > BT, BT_Hi > other-WL > BT_Lo */
BTC_CXP_OFF_BWB2 = (BTC_CXP_OFF << 8) | 8,

+ /* TDMA off + pri: WL_Hi-Tx = BT */
+ BTC_CXP_OFF_BWB3 = (BTC_CXP_OFF << 8) | 9,
+
/* TDMA off+Bcn-Protect + pri: WL_Hi-Tx > BT_Hi_Rx, BT_Hi > WL > BT_Lo*/
BTC_CXP_OFFB_BWB0 = (BTC_CXP_OFFB << 8) | 0,

@@ -433,7 +436,7 @@ enum btc_w2b_scoreboard {
BTC_WSCB_TDMA = BIT(9),
BTC_WSCB_FIX2M = BIT(10),
BTC_WSCB_WLRFK = BIT(11),
- BTC_WSCB_BTRFK_GNT = BIT(12), /* not used, use mailbox to inform BT */
+ BTC_WSCB_RXSCAN_PRI = BIT(12),
BTC_WSCB_BT_HILNA = BIT(13),
BTC_WSCB_BTLOG = BIT(14),
BTC_WSCB_ALL = GENMASK(23, 0),
@@ -2205,6 +2208,9 @@ void rtw89_btc_set_policy(struct rtw89_dev *rtwdev, u16 policy_type)
case BTC_CXP_OFF_BWB1:
_slot_set_tbl(btc, CXST_OFF, cxtbl[8]);
break;
+ case BTC_CXP_OFF_BWB3:
+ _slot_set_tbl(btc, CXST_OFF, cxtbl[6]);
+ break;
}
break;
case BTC_CXP_OFFB: /* TDMA off + beacon protect */
@@ -2524,6 +2530,9 @@ void rtw89_btc_set_policy_v1(struct rtw89_dev *rtwdev, u16 policy_type)
case BTC_CXP_OFF_BWB2:
_slot_set_tbl(btc, CXST_OFF, cxtbl[7]);
break;
+ case BTC_CXP_OFF_BWB3:
+ _slot_set_tbl(btc, CXST_OFF, cxtbl[6]);
+ break;
default:
break;
}
@@ -3057,14 +3066,19 @@ static void _action_bt_idle(struct rtw89_dev *rtwdev)
static void _action_bt_hfp(struct rtw89_dev *rtwdev)
{
struct rtw89_btc *btc = &rtwdev->btc;
+ struct rtw89_btc_wl_info *wl = &btc->cx.wl;

_set_ant(rtwdev, NM_EXEC, BTC_PHY_ALL, BTC_ANT_W2G);

if (btc->mdinfo.ant.type == BTC_ANT_SHARED) {
- if (btc->cx.wl.status.map._4way)
+ if (btc->cx.wl.status.map._4way) {
_set_policy(rtwdev, BTC_CXP_OFF_WL, BTC_ACT_BT_HFP);
- else
- _set_policy(rtwdev, BTC_CXP_OFF_BWB0, BTC_ACT_BT_HFP);
+ } else if (wl->status.map.traffic_dir & BIT(RTW89_TFC_UL)) {
+ btc->cx.bt.scan_rx_low_pri = true;
+ _set_policy(rtwdev, BTC_CXP_OFF_BWB2, BTC_ACT_BT_HFP);
+ } else {
+ _set_policy(rtwdev, BTC_CXP_OFF_BWB1, BTC_ACT_BT_HFP);
+ }
} else {
_set_policy(rtwdev, BTC_CXP_OFF_EQ2, BTC_ACT_BT_HFP);
}
@@ -3072,17 +3086,37 @@ static void _action_bt_hfp(struct rtw89_dev *rtwdev)

static void _action_bt_hid(struct rtw89_dev *rtwdev)
{
+ const struct rtw89_chip_info *chip = rtwdev->chip;
struct rtw89_btc *btc = &rtwdev->btc;
+ struct rtw89_btc_wl_info *wl = &btc->cx.wl;
+ struct rtw89_btc_bt_info *bt = &btc->cx.bt;
+ struct rtw89_btc_bt_hid_desc *hid = &bt->link_info.hid_desc;
+ u16 policy_type = BTC_CXP_OFF_BT;

_set_ant(rtwdev, NM_EXEC, BTC_PHY_ALL, BTC_ANT_W2G);

- if (btc->mdinfo.ant.type == BTC_ANT_SHARED) /* shared-antenna */
- if (btc->cx.wl.status.map._4way)
- _set_policy(rtwdev, BTC_CXP_OFF_WL, BTC_ACT_BT_HID);
- else
- _set_policy(rtwdev, BTC_CXP_OFF_BWB0, BTC_ACT_BT_HID);
- else /* dedicated-antenna */
- _set_policy(rtwdev, BTC_CXP_OFF_EQ3, BTC_ACT_BT_HID);
+ if (btc->mdinfo.ant.type == BTC_ANT_SHARED) { /* shared-antenna */
+ if (wl->status.map._4way) {
+ policy_type = BTC_CXP_OFF_WL;
+ } else if (wl->status.map.traffic_dir & BIT(RTW89_TFC_UL)) {
+ btc->cx.bt.scan_rx_low_pri = true;
+ if (hid->type & BTC_HID_BLE)
+ policy_type = BTC_CXP_OFF_BWB0;
+ else
+ policy_type = BTC_CXP_OFF_BWB2;
+ } else if (hid->type == BTC_HID_218) {
+ bt->scan_rx_low_pri = true;
+ policy_type = BTC_CXP_OFF_BWB2;
+ } else if (chip->para_ver == 0x1) {
+ policy_type = BTC_CXP_OFF_BWB3;
+ } else {
+ policy_type = BTC_CXP_OFF_BWB1;
+ }
+ } else { /* dedicated-antenna */
+ policy_type = BTC_CXP_OFF_EQ3;
+ }
+
+ _set_policy(rtwdev, policy_type, BTC_ACT_BT_HID);
}

static void _action_bt_a2dp(struct rtw89_dev *rtwdev)
@@ -3555,6 +3589,14 @@ static void _set_bt_rx_agc(struct rtw89_dev *rtwdev)
_write_scbd(rtwdev, BTC_WSCB_BT_HILNA, bt_hi_lna_rx);
}

+static void _set_bt_rx_scan_pri(struct rtw89_dev *rtwdev)
+{
+ struct rtw89_btc *btc = &rtwdev->btc;
+ struct rtw89_btc_bt_info *bt = &btc->cx.bt;
+
+ _write_scbd(rtwdev, BTC_WSCB_RXSCAN_PRI, (bool)(!!bt->scan_rx_low_pri));
+}
+
/* TODO add these functions */
static void _action_common(struct rtw89_dev *rtwdev)
{
@@ -3566,6 +3608,7 @@ static void _action_common(struct rtw89_dev *rtwdev)
_set_bt_afh_info(rtwdev);
_set_bt_rx_agc(rtwdev);
_set_rf_trx_para(rtwdev);
+ _set_bt_rx_scan_pri(rtwdev);

if (wl->scbd_change) {
rtw89_mac_cfg_sb(rtwdev, wl->scbd);
@@ -4401,6 +4444,7 @@ void _run_coex(struct rtw89_dev *rtwdev, enum btc_reason_and_action reason)
struct rtw89_btc_dm *dm = &rtwdev->btc.dm;
struct rtw89_btc_cx *cx = &btc->cx;
struct rtw89_btc_wl_info *wl = &btc->cx.wl;
+ struct rtw89_btc_bt_info *bt = &btc->cx.bt;
struct rtw89_btc_wl_role_info *wl_rinfo = &wl->role_info;
struct rtw89_btc_wl_role_info_v1 *wl_rinfo_v1 = &wl->role_info_v1;
u8 mode;
@@ -4477,6 +4521,7 @@ void _run_coex(struct rtw89_dev *rtwdev, enum btc_reason_and_action reason)

btc->ctrl.igno_bt = false;
dm->freerun = false;
+ bt->scan_rx_low_pri = false;

if (reason == BTC_RSN_NTFY_INIT) {
_action_wl_init(rtwdev);
@@ -4519,24 +4564,30 @@ void _run_coex(struct rtw89_dev *rtwdev, enum btc_reason_and_action reason)
_action_wl_2g_sta(rtwdev);
break;
case BTC_WLINK_2G_AP:
+ bt->scan_rx_low_pri = true;
_action_wl_2g_ap(rtwdev);
break;
case BTC_WLINK_2G_GO:
+ bt->scan_rx_low_pri = true;
_action_wl_2g_go(rtwdev);
break;
case BTC_WLINK_2G_GC:
+ bt->scan_rx_low_pri = true;
_action_wl_2g_gc(rtwdev);
break;
case BTC_WLINK_2G_SCC:
+ bt->scan_rx_low_pri = true;
if (chip->chip_id == RTL8852A)
_action_wl_2g_scc(rtwdev);
else if (chip->chip_id == RTL8852C)
_action_wl_2g_scc_v1(rtwdev);
break;
case BTC_WLINK_2G_MCC:
+ bt->scan_rx_low_pri = true;
_action_wl_2g_mcc(rtwdev);
break;
case BTC_WLINK_25G_MCC:
+ bt->scan_rx_low_pri = true;
_action_wl_25g_mcc(rtwdev);
break;
case BTC_WLINK_5G:
@@ -5812,6 +5863,7 @@ static const char *steps_to_str(u16 step)
CASE_BTC_POLICY_STR(OFF_BWB0);
CASE_BTC_POLICY_STR(OFF_BWB1);
CASE_BTC_POLICY_STR(OFF_BWB2);
+ CASE_BTC_POLICY_STR(OFF_BWB3);
CASE_BTC_POLICY_STR(OFFB_BWB0);
CASE_BTC_POLICY_STR(OFFE_DEF);
CASE_BTC_POLICY_STR(OFFE_DEF2);
@@ -5980,9 +6032,9 @@ static void _show_dm_info(struct rtw89_dev *rtwdev, struct seq_file *m)
(bt->hi_lna_rx ? "Hi" : "Ori"), dm->wl_btg_rx);

seq_printf(m,
- " %-15s : wl_tx_limit[en:%d/max_t:%dus/max_retry:%d], bt_slot_reg:%d-TU\n",
+ " %-15s : wl_tx_limit[en:%d/max_t:%dus/max_retry:%d], bt_slot_reg:%d-TU, bt_scan_rx_low_pri:%d\n",
"[dm_ctrl]", dm->wl_tx_limit.enable, dm->wl_tx_limit.tx_time,
- dm->wl_tx_limit.tx_retry, btc->bt_req_len);
+ dm->wl_tx_limit.tx_retry, btc->bt_req_len, bt->scan_rx_low_pri);
}

static void _show_error(struct rtw89_dev *rtwdev, struct seq_file *m)
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 8af1813cba884..3b184e3031d48 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -1394,7 +1394,8 @@ struct rtw89_btc_bt_info {
u32 pag: 1;
u32 run_patch_code: 1;
u32 hi_lna_rx: 1;
- u32 rsvd: 22;
+ u32 scan_rx_low_pri: 1;
+ u32 rsvd: 21;
};

struct rtw89_btc_cx {
--
2.25.1