wifi: ath11k: implement handling of P2P NoA event

The NoA(Notice of Absence) attribute is used by the P2P Group Owner to
signal its absence due to power save timing, concurrent operation, or
off-channel scanning. It is also used in the P2P Presence Request-Response
mechanism.

The NoA attribute shall be present in the P2P IE in the beacon frames
transmitted by a P2P Group Owner when a NoA schedule is being advertised,
or when the CTWindow is non-zero.

So add support to update P2P information after P2P GO is up through
event WMI_P2P_NOA_EVENTID, and always put it in probe resp.

Create p2p.c and p2p.h for P2P related functions and definitions.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.37
Tested-on: QCA2066 hw2.1 PCI WLAN.HSP.1.1-03926.13-QCAHSPSWPL_V2_SILICONZ_CE-2.52297.2

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240228093537.25052-4-quic_kangyang@quicinc.com

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 9b8344a74a6f..8a893cdf556b 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -3602,6 +3602,37 @@ struct wmi_ftm_event_msg {
 	u8 data[];
 } __packed;
 
+#define WMI_P2P_MAX_NOA_DESCRIPTORS		4
+
+struct wmi_p2p_noa_event {
+	u32 vdev_id;
+} __packed;
+
+struct ath11k_wmi_p2p_noa_descriptor {
+	u32 type_count; /* 255: continuous schedule, 0: reserved */
+	u32 duration;  /* Absent period duration in micro seconds */
+	u32 interval;   /* Absent period interval in micro seconds */
+	u32 start_time; /* 32 bit tsf time when in starts */
+} __packed;
+
+#define WMI_P2P_NOA_INFO_CHANGED_FLAG		BIT(0)
+#define WMI_P2P_NOA_INFO_INDEX			GENMASK(15, 8)
+#define WMI_P2P_NOA_INFO_OPP_PS			BIT(16)
+#define WMI_P2P_NOA_INFO_CTWIN_TU		GENMASK(23, 17)
+#define WMI_P2P_NOA_INFO_DESC_NUM		GENMASK(31, 24)
+
+struct ath11k_wmi_p2p_noa_info {
+	/* Bit 0 - Flag to indicate an update in NOA schedule
+	 * Bits 7-1 - Reserved
+	 * Bits 15-8 - Index (identifies the instance of NOA sub element)
+	 * Bit  16 - Opp PS state of the AP
+	 * Bits 23-17 -  Ctwindow in TUs
+	 * Bits 31-24 -  Number of NOA descriptors
+	 */
+	u32 noa_attr;
+	struct ath11k_wmi_p2p_noa_descriptor descriptors[WMI_P2P_MAX_NOA_DESCRIPTORS];
+} __packed;
+
 #define WMI_BEACON_TX_BUFFER_SIZE	512
 
 #define WMI_EMA_TMPL_IDX_SHIFT            8