wifi: ath12k: parse and save sbs_lower_band_end_freq from WMI_SERVICE_READY_EXT2_EVENTID event

Firmware sends the boundary between lower and higher bands in
ath12k_wmi_dbs_or_sbs_cap_params structure embedded in
WMI_SERVICE_READY_EXT2_EVENTID event. The boundary is needed when
updating frequency range in the following patch. So parse and save
it for later use. Note ath12k_wmi_dbs_or_sbs_cap_params is placed
after some other structures, so placeholders for them are added
as well.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250522-ath12k-sbs-dbs-v1-2-54a29e7a3a88@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

Author: Baochen Qiang

drivers/net/wireless/ath/ath12k/wmi.c

@@ -91,6 +91,11 @@ struct ath12k_wmi_svc_rdy_ext2_parse {
 	bool dma_ring_cap_done;
 	bool spectral_bin_scaling_done;
 	bool mac_phy_caps_ext_done;
+	bool hal_reg_caps_ext2_done;
+	bool scan_radio_caps_ext2_done;
+	bool twt_caps_done;
+	bool htt_msdu_idx_to_qtype_map_done;
+	bool dbs_or_sbs_cap_ext_done;
 };
 
 struct ath12k_wmi_rdy_parse {
@@ -4991,6 +4996,7 @@ static int ath12k_wmi_svc_rdy_ext2_parse(struct ath12k_base *ab,
 					 u16 tag, u16 len,
 					 const void *ptr, void *data)
 {
+	const struct ath12k_wmi_dbs_or_sbs_cap_params *dbs_or_sbs_caps;
 	struct ath12k_wmi_pdev *wmi_handle = &ab->wmi_ab.wmi[0];
 	struct ath12k_wmi_svc_rdy_ext2_parse *parse = data;
 	int ret;
@@ -5032,6 +5038,23 @@ static int ath12k_wmi_svc_rdy_ext2_parse(struct ath12k_base *ab,
 			}
 
 			parse->mac_phy_caps_ext_done = true;
+		} else if (!parse->hal_reg_caps_ext2_done) {
+			parse->hal_reg_caps_ext2_done = true;
+		} else if (!parse->scan_radio_caps_ext2_done) {
+			parse->scan_radio_caps_ext2_done = true;
+		} else if (!parse->twt_caps_done) {
+			parse->twt_caps_done = true;
+		} else if (!parse->htt_msdu_idx_to_qtype_map_done) {
+			parse->htt_msdu_idx_to_qtype_map_done = true;
+		} else if (!parse->dbs_or_sbs_cap_ext_done) {
+			dbs_or_sbs_caps = ptr;
+			ab->wmi_ab.sbs_lower_band_end_freq =
+				__le32_to_cpu(dbs_or_sbs_caps->sbs_lower_band_end_freq);
+
+			ath12k_dbg(ab, ATH12K_DBG_WMI, "sbs_lower_band_end_freq %u\n",
+				   ab->wmi_ab.sbs_lower_band_end_freq);
+
+			parse->dbs_or_sbs_cap_ext_done = true;
 		}
 		break;
 	default:

drivers/net/wireless/ath/ath12k/wmi.h

@@ -2747,6 +2747,11 @@ struct wmi_service_ready_ext2_event {
 	__le32 default_num_msduq_supported_per_tid;
 } __packed;
 
+struct ath12k_wmi_dbs_or_sbs_cap_params {
+	__le32 hw_mode_id;
+	__le32 sbs_lower_band_end_freq;
+} __packed;
+
 struct ath12k_wmi_caps_ext_params {
 	__le32 hw_mode_id;
 	__le32 pdev_and_hw_link_ids;
@@ -5097,6 +5102,7 @@ struct ath12k_wmi_base {
 	struct ath12k_wmi_target_cap_arg *targ_cap;
 
 	struct ath12k_svc_ext_info svc_ext_info;
+	u32 sbs_lower_band_end_freq;
 };
 
 struct wmi_pdev_set_bios_interface_cmd {