drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
Extension
.c
Size
131148 bytes
Lines
4241
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (bt_rssi < rssi_thresh) {
				bt_rssi_state = BTC_RSSI_STATE_LOW;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state switch to Low\n");
			} else {
				bt_rssi_state = BTC_RSSI_STATE_STAY_HIGH;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state stay at High\n");
			}
		}
	} else if (level_num == 3) {
		if (rssi_thresh > rssi_thresh1) {
			rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
				"[BTCoex], BT Rssi thresh error!!\n");
			return coex_sta->pre_bt_rssi_state;
		}

		if ((coex_sta->pre_bt_rssi_state == BTC_RSSI_STATE_LOW) ||
		    (coex_sta->pre_bt_rssi_state == BTC_RSSI_STATE_STAY_LOW)) {
			if (bt_rssi >= rssi_thresh +
				       BTC_RSSI_COEX_THRESH_TOL_8723B_2ANT) {
				bt_rssi_state = BTC_RSSI_STATE_MEDIUM;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state switch to Medium\n");
			} else {
				bt_rssi_state = BTC_RSSI_STATE_STAY_LOW;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state stay at Low\n");
			}
		} else if ((coex_sta->pre_bt_rssi_state ==
						BTC_RSSI_STATE_MEDIUM) ||
			   (coex_sta->pre_bt_rssi_state ==
						BTC_RSSI_STATE_STAY_MEDIUM)) {
			if (bt_rssi >= rssi_thresh1 +
				       BTC_RSSI_COEX_THRESH_TOL_8723B_2ANT) {
				bt_rssi_state = BTC_RSSI_STATE_HIGH;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state switch to High\n");
			} else if (bt_rssi < rssi_thresh) {
				bt_rssi_state = BTC_RSSI_STATE_LOW;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state switch to Low\n");
			} else {
				bt_rssi_state = BTC_RSSI_STATE_STAY_MEDIUM;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state stay at Medium\n");
			}
		} else {
			if (bt_rssi < rssi_thresh1) {
				bt_rssi_state = BTC_RSSI_STATE_MEDIUM;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state switch to Medium\n");
			} else {
				bt_rssi_state = BTC_RSSI_STATE_STAY_HIGH;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], BT Rssi state stay at High\n");
			}
		}
	}

	coex_sta->pre_bt_rssi_state = bt_rssi_state;

	return bt_rssi_state;
}

static u8 btc8723b2ant_wifi_rssi_state(struct btc_coexist *btcoexist,
				       u8 index, u8 level_num,
				       u8 rssi_thresh, u8 rssi_thresh1)
{
	struct rtl_priv *rtlpriv = btcoexist->adapter;
	s32 wifi_rssi = 0;
	u8 wifi_rssi_state = coex_sta->pre_wifi_rssi_state[index];

	btcoexist->btc_get(btcoexist, BTC_GET_S4_WIFI_RSSI, &wifi_rssi);

	if (level_num == 2) {
		if ((coex_sta->pre_wifi_rssi_state[index] ==
						BTC_RSSI_STATE_LOW) ||
		    (coex_sta->pre_wifi_rssi_state[index] ==
						BTC_RSSI_STATE_STAY_LOW)) {
			if (wifi_rssi >= rssi_thresh +
					 BTC_RSSI_COEX_THRESH_TOL_8723B_2ANT) {
				wifi_rssi_state = BTC_RSSI_STATE_HIGH;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], wifi RSSI state switch to High\n");
			} else {
				wifi_rssi_state = BTC_RSSI_STATE_STAY_LOW;
				rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
					"[BTCoex], wifi RSSI state stay at Low\n");
			}

Annotation

Implementation Notes