qcacld-3.0: Add PMO config for PCIe bus suspend in beaconing mode

By default, PCIe bus suspend is not allowed in beaconing modes
(SAP/P2PGO/NDP) with one or more clients connected. Some OEMs need
PCIe bus suspend in this mode. Hence, add a config item to serve
both types of requests.

Change-Id: Ia2d990f17f605036d43db75ecd4df57701b4ba1f
CRs-Fixed: 2860495

components/pmo/core/src/wlan_pmo_main.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -206,6 +206,8 @@ static void wlan_pmo_init_cfg(struct wlan_objmgr_psoc *psoc,
 	psoc_cfg->power_save_mode = cfg_get(psoc, CFG_PMO_POWERSAVE_MODE);
 	psoc_cfg->is_mod_dtim_on_sys_suspend_enabled =
 			cfg_get(psoc, CFG_PMO_MOD_DTIM_ON_SYS_SUSPEND);
+	psoc_cfg->is_bus_suspend_enabled_in_beaconing_mode =
+		cfg_get(psoc, CFG_ENABLE_BUS_SUSPEND_IN_BEACONING_MODE);
 	psoc_cfg->default_power_save_mode = psoc_cfg->power_save_mode;
 	psoc_cfg->max_ps_poll = cfg_get(psoc, CFG_PMO_MAX_PS_POLL);
 

components/pmo/dispatcher/inc/wlan_pmo_common_cfg.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -404,6 +404,34 @@
 	CFG_VALUE_OR_DEFAULT, \
 	"RA rate limit interval")
 
+/*
+ * <ini>
+ * enable_bus_suspend_in_beaconing_mode - enable PCIe bus suspend as part of
+ * platform system suspend for SAP/P2PGO/NDP with one or more clients connected
+ * @Min: 0
+ * @Max: 1
+ * @Default: 0
+ *
+ * This ini is used to PCIe bus suspend as part of platform system suspend for
+ * SAP/P2PGO/NDP with one or more clients connected
+ *
+ * 0: PCIe Bus suspend is not supported in beaconing mode (SAP/P2PGO/NDP) with
+ * one or more clients connected
+ * 1: PCIe Bus suspend is supported in beaconing mode (SAP/P2PGO/NDP) with one
+ * or more clients connected
+ * Related: None
+ *
+ * Supported Feature: Power Save
+ *
+ * Usage: Internal
+ *
+ * </ini>
+ */
+#define CFG_ENABLE_BUS_SUSPEND_IN_BEACONING_MODE CFG_INI_BOOL( \
+		"enable_bus_suspend_in_beaconing_mode", \
+		0, \
+		"This ini is used to enable bus suspend in beaconing mode")
+
 #define CFG_PMO_COMMON_ALL \
 	CFG(CFG_ENABLE_SAP_SUSPEND) \
 	CFG(CFG_PMO_ENABLE_HOST_ARPOFFLOAD) \
@@ -420,6 +448,7 @@
 	CFG(CFG_PMO_PWR_FAILURE) \
 	CFG(CFG_PMO_WOW_DATA_INACTIVITY_TIMEOUT) \
 	CFG(CFG_RA_RATE_LIMIT_INTERVAL) \
-	CFG(CFG_PMO_MOD_DTIM_ON_SYS_SUSPEND)
+	CFG(CFG_PMO_MOD_DTIM_ON_SYS_SUSPEND) \
+	CFG(CFG_ENABLE_BUS_SUSPEND_IN_BEACONING_MODE)
 
 #endif /* WLAN_PMO_COMMON_CFG_H__ */

components/pmo/dispatcher/inc/wlan_pmo_common_public_struct.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -390,6 +390,7 @@ struct pmo_psoc_cfg {
 	enum active_apf_mode active_mc_bc_apf_mode;
 	uint8_t ito_repeat_count;
 	bool is_mod_dtim_on_sys_suspend_enabled;
+	bool is_bus_suspend_enabled_in_beaconing_mode;
 #ifdef WLAN_ENABLE_GPIO_WAKEUP
 	bool enable_gpio_wakeup;
 	uint32_t gpio_wakeup_pin;

components/pmo/dispatcher/inc/wlan_pmo_ucfg_api.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -2027,4 +2027,15 @@ ucfg_pmo_get_runtime_pm_delay(struct wlan_objmgr_psoc *psoc)
  */
 bool
 ucfg_pmo_get_enable_sap_suspend(struct wlan_objmgr_psoc *psoc);
+
+/**
+ * ucfg_pmo_get_beacoing_mode_bus_suspend() - get PMO config for PCIe bus
+ * suspend in beaconing mode (SAP/P2PGO/NDP) with one or more clients
+ * @psoc: pointer to psoc object
+ *
+ * Return: bool
+ */
+bool
+ucfg_pmo_get_beaconing_mode_bus_suspend(struct wlan_objmgr_psoc *psoc);
+
 #endif /* end  of _WLAN_PMO_UCFG_API_H_ */

components/pmo/dispatcher/src/wlan_pmo_ucfg_api.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -893,3 +893,12 @@ ucfg_pmo_get_gpio_wakeup_mode(struct wlan_objmgr_psoc *psoc)
 	return pmo_psoc_ctx->psoc_cfg.gpio_wakeup_mode;
 }
 #endif
+
+bool
+ucfg_pmo_get_beaconing_mode_bus_suspend(struct wlan_objmgr_psoc *psoc)
+{
+	struct pmo_psoc_priv_obj *pmo_psoc_ctx = pmo_psoc_get_priv(psoc);
+
+	return pmo_psoc_ctx->psoc_cfg.is_bus_suspend_enabled_in_beaconing_mode;
+}
+

core/wma/src/wma_dev_if.c

@@ -4735,6 +4735,8 @@ void wma_add_sta(tp_wma_handle wma, tpAddStaParams add_sta)
 {
 	uint8_t oper_mode = BSS_OPERATIONAL_MODE_STA;
 	void *htc_handle;
+	bool is_bus_suspend_allowed_in_beaconing_mode =
+		ucfg_pmo_get_beaconing_mode_bus_suspend(wma->psoc);
 
 	htc_handle = lmac_get_htc_hdl(wma->psoc);
 	if (!htc_handle) {
@@ -4763,9 +4765,17 @@ void wma_add_sta(tp_wma_handle wma, tpAddStaParams add_sta)
 		break;
 	}
 
-	/* handle wow for sap and nan with 1 or more peer in same way */
-	if (BSS_OPERATIONAL_MODE_AP == oper_mode ||
-	    BSS_OPERATIONAL_MODE_NDI == oper_mode) {
+	/* handle wow for sap/p2pgo with 1 or more peer in same way */
+	if (BSS_OPERATIONAL_MODE_AP == oper_mode) {
+		wma_debug("disable runtime pm and bus suspend: %d",
+			  is_bus_suspend_allowed_in_beaconing_mode);
+		if (!is_bus_suspend_allowed_in_beaconing_mode)
+			htc_vote_link_up(htc_handle);
+		wma_sap_prevent_runtime_pm(wma);
+	}
+
+	/* handle wow for nan with 1 or more peer in same way */
+	if (BSS_OPERATIONAL_MODE_NDI == oper_mode) {
 		wma_debug("disable runtime pm and vote for link up");
 		htc_vote_link_up(htc_handle);
 		wma_sap_prevent_runtime_pm(wma);
@@ -4781,6 +4791,8 @@ void wma_delete_sta(tp_wma_handle wma, tpDeleteStaParams del_sta)
 	uint8_t smesession_id = del_sta->smesessionId;
 	bool rsp_requested = del_sta->respReqd;
 	void *htc_handle;
+	bool is_bus_suspend_allowed_in_beaconing_mode =
+		ucfg_pmo_get_beaconing_mode_bus_suspend(wma->psoc);
 
 	htc_handle = lmac_get_htc_hdl(wma->psoc);
 	if (!htc_handle) {
@@ -4828,8 +4840,15 @@ void wma_delete_sta(tp_wma_handle wma, tpDeleteStaParams del_sta)
 		qdf_mem_free(del_sta);
 	}
 
-	if (BSS_OPERATIONAL_MODE_AP == oper_mode ||
-	    BSS_OPERATIONAL_MODE_NDI == oper_mode) {
+	if (BSS_OPERATIONAL_MODE_AP == oper_mode) {
+		wma_debug("allow runtime pm and bus suspend: %d",
+			  is_bus_suspend_allowed_in_beaconing_mode);
+		if (!is_bus_suspend_allowed_in_beaconing_mode)
+			htc_vote_link_down(htc_handle);
+		wma_sap_allow_runtime_pm(wma);
+	}
+
+	if (BSS_OPERATIONAL_MODE_NDI == oper_mode) {
 		wma_debug("allow runtime pm and vote for link down");
 		htc_vote_link_down(htc_handle);
 		wma_sap_allow_runtime_pm(wma);