qcacmn: Add service bit to support backward compatibility

The host will send TPC power to FW via the new WMI cmd
WMI_VDEV_SET_TPC_POWER_CMDID going forward instead of
WMI_VDEV_PARAM_TX_PWRLIMIT to accommodate 6GHz channels.
But, to support backward compatibility for New Host+old FW
the TPC power will be sent to FW via legacy WMI cmds
WMI_VDEV_SET_PARAM_CMDID (during initial connection) or
WMI_VDEV_PARAM_TX_PWRLIMIT (power value change during RRM
req/bcn processing from connected AP) with the help of a
service bit WMI_SERVICE_EXT_TPC_REG_SUPPORT.

Change-Id: I22e11ff847cd384fac8ea0061e5df42cea0c8de8
CRs-Fixed: 2874245

target_if/regulatory/inc/target_if_reg.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
@@ -72,4 +72,13 @@ QDF_STATUS target_if_reg_set_5dot9_ghz_info(struct wlan_objmgr_psoc *psoc);
  */
 struct wlan_lmac_if_reg_rx_ops *
 target_if_regulatory_get_rx_ops(struct wlan_objmgr_psoc *psoc);
+
+/**
+ * target_if_regulatory_set_ext_tpc() - populate FW support of new WMI command
+ * for TPC
+ * @psoc: psoc pointer
+ *
+ * Return: Success or Failure
+ */
+QDF_STATUS target_if_regulatory_set_ext_tpc(struct wlan_objmgr_psoc *psoc);
 #endif /* __TARGET_IF_REG_H__ */

target_if/regulatory/src/target_if_reg.c

@@ -675,6 +675,43 @@ tgt_if_regulatory_set_tpc_power(struct wlan_objmgr_psoc *psoc,
 	return wmi_unified_send_set_tpc_power_cmd(wmi_handle, vdev_id, param);
 }
 
+/**
+ * tgt_if_regulatory_is_ext_tpc_supported() - Check if FW supports new
+ * WMI command for TPC power
+ *
+ * @psoc: Pointer to psoc
+ *
+ * Return: true if FW supports new WMI command for TPC, else false
+ */
+static bool
+tgt_if_regulatory_is_ext_tpc_supported(struct wlan_objmgr_psoc *psoc)
+{
+	wmi_unified_t wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+
+	if (!wmi_handle)
+		return false;
+
+	return wmi_service_enabled(wmi_handle, wmi_service_ext_tpc_reg_support);
+}
+
+QDF_STATUS target_if_regulatory_set_ext_tpc(struct wlan_objmgr_psoc *psoc)
+{
+	struct wlan_lmac_if_reg_rx_ops *reg_rx_ops;
+
+	reg_rx_ops = target_if_regulatory_get_rx_ops(psoc);
+	if (!reg_rx_ops) {
+		target_if_err("reg_rx_ops is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	if (reg_rx_ops->reg_set_ext_tpc_supported)
+		reg_rx_ops->reg_set_ext_tpc_supported(
+			psoc,
+			tgt_if_regulatory_is_ext_tpc_supported(psoc));
+
+	return QDF_STATUS_SUCCESS;
+}
+
 QDF_STATUS target_if_register_regulatory_tx_ops(
 		struct wlan_lmac_if_tx_ops *tx_ops)
 {