wifi: ath12k: add WoW net-detect functionality

Implement net-detect feature by setting flag
WIPHY_WOWLAN_NET_DETECT if firmware supports this
feature. Driver sets the related PNO configuration
to firmware before entering WoW and firmware then
scans periodically and wakes up host if a specific
SSID is found.

Note that firmware crashes if we enable it for both
P2P vdev and station vdev simultaneously because
firmware can only support one vdev at a time. Since
there is rare scenario for a P2P vdev to do net-detect,
skip it for P2P vdevs.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240604055407.12506-5-quic_bqiang@quicinc.com

1 files changed, 166 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 6cb06f6f7df4..0842ab760f2b 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -5130,6 +5130,170 @@ struct wmi_wow_ev_arg {
 	enum wmi_wow_wake_reason wake_reason;
 };
 
+#define WMI_PNO_MAX_SCHED_SCAN_PLANS      2
+#define WMI_PNO_MAX_SCHED_SCAN_PLAN_INT   7200
+#define WMI_PNO_MAX_SCHED_SCAN_PLAN_ITRNS 100
+#define WMI_PNO_MAX_NETW_CHANNELS         26
+#define WMI_PNO_MAX_NETW_CHANNELS_EX      60
+#define WMI_PNO_MAX_SUPP_NETWORKS         WLAN_SCAN_PARAMS_MAX_SSID
+#define WMI_PNO_MAX_IE_LENGTH             WLAN_SCAN_PARAMS_MAX_IE_LEN
+
+/* size based of dot11 declaration without extra IEs as we will not carry those for PNO */
+#define WMI_PNO_MAX_PB_REQ_SIZE    450
+
+#define WMI_PNO_24GHZ_DEFAULT_CH     1
+#define WMI_PNO_5GHZ_DEFAULT_CH      36
+
+#define WMI_ACTIVE_MAX_CHANNEL_TIME 40
+#define WMI_PASSIVE_MAX_CHANNEL_TIME   110
+
+/* SSID broadcast type */
+enum wmi_ssid_bcast_type {
+	BCAST_UNKNOWN      = 0,
+	BCAST_NORMAL       = 1,
+	BCAST_HIDDEN       = 2,
+};
+
+#define WMI_NLO_MAX_SSIDS    16
+#define WMI_NLO_MAX_CHAN     48
+
+#define WMI_NLO_CONFIG_STOP                             BIT(0)
+#define WMI_NLO_CONFIG_START                            BIT(1)
+#define WMI_NLO_CONFIG_RESET                            BIT(2)
+#define WMI_NLO_CONFIG_SLOW_SCAN                        BIT(4)
+#define WMI_NLO_CONFIG_FAST_SCAN                        BIT(5)
+#define WMI_NLO_CONFIG_SSID_HIDE_EN                     BIT(6)
+
+/* This bit is used to indicate if EPNO or supplicant PNO is enabled.
+ * Only one of them can be enabled at a given time
+ */
+#define WMI_NLO_CONFIG_ENLO                             BIT(7)
+#define WMI_NLO_CONFIG_SCAN_PASSIVE                     BIT(8)
+#define WMI_NLO_CONFIG_ENLO_RESET                       BIT(9)
+#define WMI_NLO_CONFIG_SPOOFED_MAC_IN_PROBE_REQ         BIT(10)
+#define WMI_NLO_CONFIG_RANDOM_SEQ_NO_IN_PROBE_REQ       BIT(11)
+#define WMI_NLO_CONFIG_ENABLE_IE_WHITELIST_IN_PROBE_REQ BIT(12)
+#define WMI_NLO_CONFIG_ENABLE_CNLO_RSSI_CONFIG          BIT(13)
+
+struct wmi_nlo_ssid_params {
+	__le32 valid;
+	struct ath12k_wmi_ssid_params ssid;
+} __packed;
+
+struct wmi_nlo_enc_params {
+	__le32 valid;
+	__le32 enc_type;
+} __packed;
+
+struct wmi_nlo_auth_params {
+	__le32 valid;
+	__le32 auth_type;
+} __packed;
+
+struct wmi_nlo_bcast_nw_params {
+	__le32 valid;
+	__le32 bcast_nw_type;
+} __packed;
+
+struct wmi_nlo_rssi_params {
+	__le32 valid;
+	__le32 rssi;
+} __packed;
+
+struct nlo_configured_params {
+	/* TLV tag and len;*/
+	__le32 tlv_header;
+	struct wmi_nlo_ssid_params ssid;
+	struct wmi_nlo_enc_params enc_type;
+	struct wmi_nlo_auth_params auth_type;
+	struct wmi_nlo_rssi_params rssi_cond;
+
+	/* indicates if the SSID is hidden or not */
+	struct wmi_nlo_bcast_nw_params bcast_nw_type;
+} __packed;
+
+struct wmi_network_type_arg {
+	struct cfg80211_ssid ssid;
+	u32 authentication;
+	u32 encryption;
+	u32 bcast_nw_type;
+	u8 channel_count;
+	u16 channels[WMI_PNO_MAX_NETW_CHANNELS_EX];
+	s32 rssi_threshold;
+};
+
+struct wmi_pno_scan_req_arg {
+	u8 enable;
+	u8 vdev_id;
+	u8 uc_networks_count;
+	struct wmi_network_type_arg a_networks[WMI_PNO_MAX_SUPP_NETWORKS];
+	u32 fast_scan_period;
+	u32 slow_scan_period;
+	u8 fast_scan_max_cycles;
+
+	bool do_passive_scan;
+
+	u32 delay_start_time;
+	u32 active_min_time;
+	u32 active_max_time;
+	u32 passive_min_time;
+	u32 passive_max_time;
+
+	/* mac address randomization attributes */
+	u32 enable_pno_scan_randomization;
+	u8 mac_addr[ETH_ALEN];
+	u8 mac_addr_mask[ETH_ALEN];
+};
+
+struct wmi_wow_nlo_config_cmd {
+	__le32 tlv_header;
+	__le32 flags;
+	__le32 vdev_id;
+	__le32 fast_scan_max_cycles;
+	__le32 active_dwell_time;
+	__le32 passive_dwell_time;
+	__le32 probe_bundle_size;
+
+	/* ART = IRT */
+	__le32 rest_time;
+
+	/* max value that can be reached after scan_backoff_multiplier */
+	__le32 max_rest_time;
+
+	__le32 scan_backoff_multiplier;
+	__le32 fast_scan_period;
+
+	/* specific to windows */
+	__le32 slow_scan_period;
+
+	__le32 no_of_ssids;
+
+	__le32 num_of_channels;
+
+	/* NLO scan start delay time in milliseconds */
+	__le32 delay_start_time;
+
+	/* MAC Address to use in Probe Req as SA */
+	struct ath12k_wmi_mac_addr_params mac_addr;
+
+	/* Mask on which MAC has to be randomized */
+	struct ath12k_wmi_mac_addr_params mac_mask;
+
+	/* IE bitmap to use in Probe Req */
+	__le32 ie_bitmap[8];
+
+	/* Number of vendor OUIs. In the TLV vendor_oui[] */
+	__le32 num_vendor_oui;
+
+	/* Number of connected NLO band preferences */
+	__le32 num_cnlo_band_pref;
+
+	/* The TLVs will follow.
+	 * nlo_configured_params nlo_list[];
+	 * u32 channel_list[num_of_channels];
+	 */
+} __packed;
+
 void ath12k_wmi_init_qcn9274(struct ath12k_base *ab,
 			     struct ath12k_wmi_resource_config_arg *config);
 void ath12k_wmi_init_wcn7850(struct ath12k_base *ab,
@@ -5291,4 +5455,6 @@ int ath12k_wmi_wow_add_pattern(struct ath12k *ar, u32 vdev_id, u32 pattern_id,
 int ath12k_wmi_wow_add_wakeup_event(struct ath12k *ar, u32 vdev_id,
 				    enum wmi_wow_wakeup_event event,
 				    u32 enable);
+int ath12k_wmi_wow_config_pno(struct ath12k *ar, u32 vdev_id,
+			      struct wmi_pno_scan_req_arg  *pno_scan);
 #endif