qcacmn: Implement interface to set WLM level

WLAN Latency module (WLM) is added by fw to gain latency
because of schedule out of service like power saving,
scanning, roaming etc. per the level set by framework.

Change-Id: I6b8775e5f492b6f287d60d39610a544114185a23
CRs-Fixed: 2152290

wmi_unified_tlv.c

@@ -8641,6 +8641,39 @@ static QDF_STATUS send_fw_profiling_cmd_tlv(wmi_unified_t wmi_handle,
 	return 0;
 }
 
+static QDF_STATUS send_wlm_latency_level_cmd_tlv(wmi_unified_t wmi_handle,
+				struct wlm_latency_level_param *params)
+{
+	wmi_wlm_config_cmd_fixed_param *cmd;
+	wmi_buf_t buf;
+	uint32_t len = sizeof(*cmd);
+	static uint32_t ll[4] = {100, 60, 40, 20};
+
+	buf = wmi_buf_alloc(wmi_handle, len);
+	if (!buf) {
+		WMI_LOGP("%s: wmi_buf_alloc failed", __func__);
+		return QDF_STATUS_E_NOMEM;
+	}
+	cmd = (wmi_wlm_config_cmd_fixed_param *)wmi_buf_data(buf);
+	WMITLV_SET_HDR(&cmd->tlv_header,
+		       WMITLV_TAG_STRUC_wmi_wlm_config_cmd_fixed_param,
+		       WMITLV_GET_STRUCT_TLVLEN
+		       (wmi_wlm_config_cmd_fixed_param));
+	cmd->vdev_id = params->vdev_id;
+	cmd->latency_level = params->wlm_latency_level;
+	cmd->ul_latency = ll[params->wlm_latency_level];
+	cmd->dl_latency = ll[params->wlm_latency_level];
+	cmd->flags = params->wlm_latency_flags;
+	if (wmi_unified_cmd_send(wmi_handle, buf, len,
+				 WMI_WLM_CONFIG_CMDID)) {
+		WMI_LOGE("%s: Failed to send setting latency config command",
+			 __func__);
+		wmi_buf_free(buf);
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	return 0;
+}
 /**
  * send_nat_keepalive_en_cmd_tlv() - enable NAT keepalive filter
  * @wmi_handle: wmi handle
@@ -20189,6 +20222,7 @@ struct wmi_ops tlv_ops =  {
 	.send_fw_profiling_cmd = send_fw_profiling_cmd_tlv,
 	.send_csa_offload_enable_cmd = send_csa_offload_enable_cmd_tlv,
 	.send_nat_keepalive_en_cmd = send_nat_keepalive_en_cmd_tlv,
+	.send_wlm_latency_level_cmd = send_wlm_latency_level_cmd_tlv,
 	.send_start_oem_data_cmd = send_start_oem_data_cmd_tlv,
 #ifdef WLAN_FEATURE_CIF_CFR
 	.send_oem_dma_cfg_cmd = send_oem_dma_cfg_cmd_tlv,