qcacmn: calculate RSSI in DBM

calculate rssi_comb and rssi per chain values using
parameters received from the fw.

Change-Id: Ide56549c7d7ee9bde609dc6764013d509f7ccac0
CRs-Fixed: 3157484

dp/wifi3.0/monitor/1.0/dp_mon_1.0.c

@@ -1151,6 +1151,7 @@ dp_mon_register_feature_ops_1_0(struct dp_soc *soc)
 	mon_ops->mon_filter_reset_undecoded_metadata_capture =
 		dp_mon_filter_reset_undecoded_metadata_capture_1_0;
 #endif
+	mon_ops->mon_rx_stats_update_rssi_dbm_params = NULL;
 }
 
 struct dp_mon_ops monitor_ops_1_0 = {

dp/wifi3.0/monitor/2.0/dp_mon_2.0.c

@@ -1452,6 +1452,8 @@ dp_mon_register_feature_ops_2_0(struct dp_soc *soc)
 	mon_ops->mon_filter_reset_undecoded_metadata_capture =
 		dp_mon_filter_reset_undecoded_metadata_capture_2_0;
 #endif
+	mon_ops->mon_rx_stats_update_rssi_dbm_params =
+		dp_mon_rx_stats_update_rssi_dbm_params_2_0;
 }
 
 struct dp_mon_ops monitor_ops_2_0 = {

dp/wifi3.0/monitor/2.0/dp_rx_mon_2.0.c

@@ -1301,3 +1301,21 @@ dp_rx_mon_populate_ppdu_info_2_0(struct hal_rx_ppdu_info *hal_ppdu_info,
 }
 #endif
 #endif
+#ifdef QCA_RSSI_DB2DBM
+void
+dp_mon_rx_stats_update_rssi_dbm_params_2_0(struct dp_mon_pdev *mon_pdev)
+{
+	struct dp_mon_pdev_be *mon_pdev_be =
+				dp_get_be_mon_pdev_from_dp_mon_pdev(mon_pdev);
+	mon_pdev->ppdu_info.rx_status.rssi_temp_offset =
+		mon_pdev_be->rssi_temp_offset;
+	mon_pdev->ppdu_info.rx_status.xlna_bypass_offset =
+		mon_pdev_be->xlna_bypass_offset;
+	mon_pdev->ppdu_info.rx_status.xlna_bypass_threshold =
+		mon_pdev_be->xlna_bypass_threshold;
+	mon_pdev->ppdu_info.rx_status.min_nf_dbm =
+		mon_pdev_be->min_nf_dbm;
+	mon_pdev->ppdu_info.rx_status.xbar_config =
+		mon_pdev_be->xbar_config;
+}
+#endif

dp/wifi3.0/monitor/2.0/dp_rx_mon_2.0.h

@@ -170,4 +170,22 @@ void
 dp_rx_mon_handle_full_mon(struct dp_pdev *pdev,
 			  struct hal_rx_ppdu_info *ppdu_info,
 			  qdf_nbuf_t mpdu);
+#ifdef QCA_RSSI_DB2DBM
+/**
+ * dp_mon_rx_stats_update_rssi_dbm_params_2_0() - update rssi calibration
+ *					parameters in rx stats
+ * @mon_pdev: monitor pdev
+ */
+void
+dp_mon_rx_stats_update_rssi_dbm_params_2_0(struct dp_mon_pdev *mon_pdev);
+#else
+/**
+ * dp_mon_rx_stats_update_rssi_dbm_params_2_0() - update rssi calibration
+ *					parameters in rx stats
+ * @mon_pdev: monitor pdev
+ */
+static inline void
+dp_mon_rx_stats_update_rssi_dbm_params_2_0(struct dp_mon_pdev *mon_pdev)
+{ }
+#endif
 #endif /* _DP_RX_MON_2_0_H_ */

dp/wifi3.0/monitor/dp_mon.c

@@ -5715,6 +5715,7 @@ void dp_mon_feature_ops_deregister(struct dp_soc *soc)
 	mon_ops->mon_rx_populate_ppdu_usr_info = NULL;
 	mon_ops->mon_rx_populate_ppdu_info = NULL;
 #endif
+	mon_ops->mon_rx_stats_update_rssi_dbm_params = NULL;
 }
 
 QDF_STATUS dp_mon_soc_attach(struct dp_soc *soc)

dp/wifi3.0/monitor/dp_mon.h

@@ -779,6 +779,8 @@ struct dp_mon_ops {
 	void (*mon_lite_mon_vdev_delete)(struct dp_pdev *pdev,
 					 struct dp_vdev *vdev);
 	void (*mon_lite_mon_disable_rx)(struct dp_pdev *pdev);
+	void (*mon_rx_stats_update_rssi_dbm_params)
+		(struct dp_mon_pdev *mon_pdev);
 };
 
 struct dp_mon_soc {
@@ -3754,6 +3756,27 @@ dp_rx_mon_enable(struct dp_soc *soc, uint32_t *msg_word,
 	monitor_ops->rx_mon_enable(msg_word, tlv_filter);
 }
 
+static inline void
+dp_mon_rx_stats_update_rssi_dbm_params(struct dp_soc *soc,
+				       struct dp_mon_pdev *mon_pdev)
+{
+	struct dp_mon_soc *mon_soc = soc->monitor_soc;
+	struct dp_mon_ops *monitor_ops;
+
+	if (!mon_soc) {
+		dp_mon_debug("mon soc is NULL");
+		return;
+	}
+
+	monitor_ops = mon_soc->mon_ops;
+	if (!monitor_ops ||
+	    !monitor_ops->mon_rx_stats_update_rssi_dbm_params) {
+		dp_mon_debug("callback not registered");
+		return;
+	}
+	monitor_ops->mon_rx_stats_update_rssi_dbm_params(mon_pdev);
+}
+
 #ifdef QCA_ENHANCED_STATS_SUPPORT
 QDF_STATUS dp_peer_qos_stats_notify(struct dp_pdev *dp_pdev,
 				    struct cdp_rx_stats_ppdu_user *ppdu_user);

dp/wifi3.0/monitor/dp_rx_mon.c

@@ -289,15 +289,63 @@ dp_bb_captured_chan_status(struct dp_pdev *pdev,
 #endif /* WLAN_CFR_ENABLE */
 
 #ifdef QCA_ENHANCED_STATS_SUPPORT
+#ifdef QCA_RSSI_DB2DBM
+/**
+ * dp_rx_mon_rf_index_conv() - this function will convert BB index to RF
+ *			index in the rssi_chain[chain][bw] array
+ *
+ * @chain: BB chain index
+ * @pdev: pdev structure
+ *
+ * Return: return RF chain index
+ *
+ * Computation:
+ *  3 Bytes of xbar_config are used for RF to BB mapping
+ *  Samples of xbar_config,
+ *
+ * If xbar_config is 0x688FAC(hex):
+ *     RF chains 0-3 are connected to BB chains 4-7
+ *     RF chains 4-7 are connected to BB chains 0-3
+ *     here,
+ *     bits 0 to 2 = 4, maps BB chain 4 for RF chain 0
+ *     bits 3 to 5 = 5, maps BB chain 5 for RF chain 1
+ *     bits 6 to 8 = 6, maps BB chain 6 for RF chain 2
+ *     bits 9 to 11 = 7, maps BB chain 7 for RF chain 3
+ *     bits 12 to 14 = 0, maps BB chain 0 for RF chain 4
+ *     bits 15 to 17 = 1, maps BB chain 1 for RF chain 5
+ *     bits 18 to 20 = 2, maps BB chain 2 for RF chain 6
+ *     bits 21 to 23 = 3, maps BB chain 3 for RF chain 7
+ */
+static uint8_t dp_rx_mon_rf_index_conv(uint8_t chain,
+				       struct hal_rx_ppdu_info *ppdu_info,
+				       struct dp_pdev *pdev)
+{
+	uint32_t xbar_config = ppdu_info->rx_status.xbar_config;
+
+	if (pdev->soc->features.rssi_dbm_conv_support && xbar_config)
+		return ((xbar_config >> (3 * chain)) & 0x07);
+	return chain;
+}
+#else
+static uint8_t dp_rx_mon_rf_index_conv(uint8_t chain,
+				       struct hal_rx_ppdu_info *ppdu_info,
+				       struct dp_pdev *pdev)
+{
+	return chain;
+}
+#endif
 void
 dp_rx_populate_rx_rssi_chain(struct hal_rx_ppdu_info *ppdu_info,
-			     struct cdp_rx_indication_ppdu *cdp_rx_ppdu)
+			     struct cdp_rx_indication_ppdu *cdp_rx_ppdu,
+			     struct dp_pdev *pdev)
 {
 	uint8_t chain, bw;
 	uint8_t rssi;
 
 	for (chain = 0; chain < SS_COUNT; chain++) {
 		for (bw = 0; bw < MAX_BW; bw++) {
+			chain = dp_rx_mon_rf_index_conv(chain,
+							ppdu_info, pdev);
 			rssi = ppdu_info->rx_status.rssi_chain[chain][bw];
 			if (rssi != DP_RSSI_INVAL)
 				cdp_rx_ppdu->rssi_chain[chain][bw] = rssi;
@@ -596,8 +644,7 @@ dp_rx_populate_cdp_indication_ppdu(struct dp_pdev *pdev,
 		cdp_rx_ppdu->u.dcm = (ppdu_info->rx_status.he_data3 >>
 				      QDF_MON_STATUS_DCM_SHIFT) & 0x1;
 	}
-
+	dp_rx_populate_rx_rssi_chain(ppdu_info, cdp_rx_ppdu, pdev);
-	dp_rx_populate_rx_rssi_chain(ppdu_info, cdp_rx_ppdu);
 	dp_rx_populate_su_evm_details(ppdu_info, cdp_rx_ppdu);
 	cdp_rx_ppdu->rx_antenna = ppdu_info->rx_status.rx_antenna;
 
@@ -1202,7 +1249,7 @@ dp_rx_populate_cdp_indication_ppdu_undecoded_metadata(struct dp_pdev *pdev,
 		cdp_rx_ppdu->sig_b_comp = (ppdu_info->rx_status.he_flags2 >>
 			QDF_MON_STATUS_SIG_B_COMPRESSION_FLAG_2_SHIFT) & 0x1;
 	}
-	dp_rx_populate_rx_rssi_chain(ppdu_info, cdp_rx_ppdu);
+	dp_rx_populate_rx_rssi_chain(ppdu_info, cdp_rx_ppdu, pdev);
 	dp_rx_populate_su_evm_details(ppdu_info, cdp_rx_ppdu);
 	cdp_rx_ppdu->rx_antenna = ppdu_info->rx_status.rx_antenna;
 
@@ -1766,7 +1813,7 @@ QDF_STATUS dp_rx_mon_deliver(struct dp_soc *soc, uint32_t mac_id,
 		mon_pdev->ppdu_info.rx_status.device_id = soc->device_id;
 		mon_pdev->ppdu_info.rx_status.chan_noise_floor =
 			pdev->chan_noise_floor;
-
+		dp_mon_rx_stats_update_rssi_dbm_params(soc, mon_pdev);
 		dp_handle_tx_capture(soc, pdev, mon_mpdu);
 
 		if (!qdf_nbuf_update_radiotap(&mon_pdev->ppdu_info.rx_status,

dp/wifi3.0/monitor/dp_rx_mon.h

@@ -302,7 +302,8 @@ dp_rx_mon_init_dbg_ppdu_stats(struct hal_rx_ppdu_info *ppdu_info,
 #ifdef QCA_ENHANCED_STATS_SUPPORT
 void
 dp_rx_populate_rx_rssi_chain(struct hal_rx_ppdu_info *ppdu_info,
-			     struct cdp_rx_indication_ppdu *cdp_rx_ppdu);
+			     struct cdp_rx_indication_ppdu *cdp_rx_ppdu,
+			     struct dp_pdev *pdev);
 
 /*
  * dp_rx_populate_su_evm_details() - Populate su evm info

qdf/inc/qdf_nbuf.h

@@ -351,6 +351,11 @@ typedef __qdf_nbuf_queue_t qdf_nbuf_queue_t;
  * @ht_stbc: Indicate stbc
  * @ht_crc: ht crc
  * @dcm: dcm
+ * @xlna_bypass_offset: Low noise amplifier bypass offset
+ * @xlna_bypass_threshold: Low noise amplifier bypass threshold
+ * @rssi_temp_offset: Temperature based rssi offset
+ * @min_nf_dbm: min noise floor in active chains per channel
+ * @xbar_config: 4 bytes, used for BB to RF Chain mapping
  */
 struct mon_rx_status {
 	uint64_t tsft;
@@ -470,6 +475,13 @@ struct mon_rx_status {
 		ht_crc:8;
 #endif
 	uint8_t  dcm;
+#ifdef QCA_RSSI_DB2DBM
+	int32_t xlna_bypass_offset;
+	int32_t xlna_bypass_threshold;
+	int32_t rssi_temp_offset;
+	int8_t min_nf_dbm;
+	uint32_t xbar_config;
+#endif
 };
 
 /**

qdf/linux/src/qdf_nbuf.c

@@ -5044,9 +5044,15 @@ static unsigned int qdf_nbuf_update_radiotap_ampdu_flags(
 #define QDF_MON_STATUS_GET_RSSI_IN_DBM(rx_status) \
 (rx_status->rssi_comb)
 #else
+#ifdef QCA_RSSI_DB2DBM
+#define QDF_MON_STATUS_GET_RSSI_IN_DBM(rx_status) \
+((rx_status)->rssi_comb + (rx_status)->min_nf_dbm +\
+(rx_status)->rssi_temp_offset)
+#else
 #define QDF_MON_STATUS_GET_RSSI_IN_DBM(rx_status) \
 (rx_status->rssi_comb + rx_status->chan_noise_floor)
 #endif
+#endif
 
 /**
  * qdf_nbuf_update_radiotap_tx_flags() - Update radiotap header tx flags