qcacld-3.0: Add SAR V2 support

Add changes to support SAR V2 power limits.

Change-Id: I35f8a194ac9c53c8fd564bd301398b78fa995bed
CRs-Fixed: 2217067

core/hdd/src/wlan_hdd_cfg80211.c

@@ -11481,6 +11481,10 @@ static int wlan_hdd_cfg80211_sar_convert_limit_set(u32 nl80211_value,
 	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_USER:
 		*wmi_value = WMI_SAR_FEATURE_ON_USER_DEFINED;
 		break;
+	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_V2_0:
+		*wmi_value = WMI_SAR_FEATURE_ON_SAR_V2_0;
+		break;
+
 	default:
 		ret = -1;
 	}
@@ -11556,6 +11560,8 @@ static u32 hdd_sar_wmi_to_nl_enable(uint32_t wmi_value)
 		return QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF4;
 	case WMI_SAR_FEATURE_ON_USER_DEFINED:
 		return QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_USER;
+	case WMI_SAR_FEATURE_ON_SAR_V2_0:
+		return QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_V2_0;
 	}
 }
 
@@ -11589,6 +11595,7 @@ sar_limits_policy[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX + 1] = {
 	[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_CHAIN] = {.type = NLA_U32},
 	[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION] = {.type = NLA_U32},
 	[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT] = {.type = NLA_U32},
+	[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT_INDEX] = {.type = NLA_U32},
 };
 
 #define WLAN_WAIT_TIME_SAR 5000
@@ -11942,8 +11949,13 @@ static int __wlan_hdd_set_sar_power_limits(struct wiphy *wiphy,
 			sar_limit_cmd.sar_limit_row_list[i].limit_value =
 				nla_get_u32(sar_spec[
 				QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT]);
+		} else if (sar_spec[
+			    QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT_INDEX]) {
+			sar_limit_cmd.sar_limit_row_list[i].limit_value =
+				nla_get_u32(sar_spec[
+				QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT_INDEX]);
 		} else {
-			hdd_err("SAR Spec does not have power limit value");
+			hdd_err("SAR Spec does not have power limit or index value");
 			goto fail;
 		}
 

core/wma/inc/wma_internal.h

@@ -112,6 +112,11 @@
 #define MAX_NUM_HW_MODE    0xff
 #define MAX_NUM_PHY        0xff
 
+enum sar_version {
+	SAR_VERSION_1,
+	SAR_VERSION_2
+};
+
 /**
  * struct index_data_rate_type - non vht data rate type
  * @mcs_index: mcs rate index
@@ -1061,6 +1066,16 @@ QDF_STATUS wma_set_led_flashing(tp_wma_handle wma_handle,
 				struct flashing_req_params *flashing);
 #endif
 
+/**
+ * wma_sar_rsp_evt_handler() -  process sar response event from FW.
+ * @handle: wma handle
+ * @event: event buffer
+ * @len: buffer length
+ *
+ * Return: 0 for success or error code
+ */
+int wma_sar_rsp_evt_handler(void *handle, uint8_t *event, uint32_t len);
+
 #ifdef FEATURE_WLAN_CH_AVOID
 QDF_STATUS wma_process_ch_avoid_update_req(tp_wma_handle wma_handle,
 					   tSirChAvoidUpdateReq *

core/wma/src/wma_features.c

@@ -4047,6 +4047,20 @@ QDF_STATUS wma_set_led_flashing(tp_wma_handle wma_handle,
 }
 #endif /* WLAN_FEATURE_GPIO_LED_FLASHING */
 
+int wma_sar_rsp_evt_handler(void *handle, uint8_t *event, uint32_t len)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_extract_sar2_result_event(handle,
+						       event, len);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		WMA_LOGE(FL("Event extract failure: %d"), status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 #ifdef FEATURE_WLAN_CH_AVOID
 /**
  * wma_process_ch_avoid_update_req() - handles channel avoid update request

core/wma/src/wma_main.c

@@ -4131,6 +4131,17 @@ QDF_STATUS wma_start(void)
 					WMA_RX_TASKLET_CTX);
 #endif /* QCA_LL_LEGACY_TX_FLOW_CONTROL */
 
+	WMA_LOGD("Registering SAR2 response handler");
+	status = wmi_unified_register_event_handler(wma_handle->wmi_handle,
+						wmi_wlan_sar2_result_event_id,
+						wma_sar_rsp_evt_handler,
+						WMA_RX_SERIALIZER_CTX);
+	if (status) {
+		WMA_LOGE("Failed to register sar response event cb");
+		qdf_status = QDF_STATUS_E_FAILURE;
+		goto end;
+	}
+
 #ifdef FEATURE_WLAN_AUTO_SHUTDOWN
 	WMA_LOGD("Registering auto shutdown handler");
 	status = wmi_unified_register_event_handler(wmi_handle,