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From:   Aishwarya R <quic_aisr@quicinc.com>
To:     ath12k@lists.infradead.org
Cc:     linux-wireless@vger.kernel.org, Aishwarya R <quic_aisr@quicinc.com>
Subject: [PATCH 4/7] wifi: ath12k: save power spectral density(PSD) of regulatory rule
Date:   Tue, 19 Sep 2023 12:47:21 +0530
Message-Id: <20230919071724.15505-5-quic_aisr@quicinc.com>
In-Reply-To: <20230919071724.15505-1-quic_aisr@quicinc.com>
References: <20230919071724.15505-1-quic_aisr@quicinc.com>
Precedence: bulk

Save the Power Spectral Density(PSD) report from firmware
to struct ieee80211_reg_rule. 6 GHz regulatory domains
introduces PSD. The PSD value of the regulatory rule should
be taken into effect for the ieee80211_channels falling into
that particular regulatory rule.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Aishwarya R <quic_aisr@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/reg.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/reg.c b/drivers/net/wireless/ath/ath12k/reg.c
index 8501f77eee55..19681474026f 100644
--- a/drivers/net/wireless/ath/ath12k/reg.c
+++ b/drivers/net/wireless/ath/ath12k/reg.c
@@ -390,6 +390,10 @@ static void ath12k_reg_intersect_rules(struct ieee80211_reg_rule *rule1,
 
 	/* Use the flags of both the rules */
 	new_rule->flags = rule1->flags | rule2->flags;
+	if ((rule1->flags & NL80211_RRF_PSD) && (rule2->flags & NL80211_RRF_PSD))
+		new_rule->psd = min_t(s8, rule1->psd, rule2->psd);
+	else
+		new_rule->flags &= ~NL80211_RRF_PSD;
 
 	/* To be safe, lts use the max cac timeout of both rules */
 	new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms,
@@ -488,13 +492,14 @@ ath12k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw)
 static void
 ath12k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq,
 		       u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr,
-		       u32 reg_flags)
+		       s8 psd, u32 reg_flags)
 {
 	reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq);
 	reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq);
 	reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw);
 	reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain);
 	reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr);
+	reg_rule->psd = psd;
 	reg_rule->flags = reg_flags;
 }
 
@@ -516,7 +521,7 @@ ath12k_reg_update_weather_radar_band(struct ath12k_base *ab,
 	ath12k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq,
 			       ETSI_WEATHER_RADAR_BAND_LOW, bw,
 			       reg_rule->ant_gain, reg_rule->reg_power,
-			       flags);
+			       reg_rule->psd_eirp, flags);
 
 	ath12k_dbg(ab, ATH12K_DBG_REG,
 		   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
@@ -538,7 +543,7 @@ ath12k_reg_update_weather_radar_band(struct ath12k_base *ab,
 	ath12k_reg_update_rule(regd->reg_rules + i,
 			       ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw,
 			       reg_rule->ant_gain, reg_rule->reg_power,
-			       flags);
+			       reg_rule->psd_eirp, flags);
 
 	regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT;
 
@@ -563,7 +568,7 @@ ath12k_reg_update_weather_radar_band(struct ath12k_base *ab,
 	ath12k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH,
 			       reg_rule->end_freq, bw,
 			       reg_rule->ant_gain, reg_rule->reg_power,
-			       flags);
+			       reg_rule->psd_eirp, flags);
 
 	ath12k_dbg(ab, ATH12K_DBG_REG,
 		   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
@@ -673,6 +678,8 @@ ath12k_reg_build_regd(struct ath12k_base *ab,
 			reg_rule = reg_rule_6ghz + k++;
 			max_bw = min_t(u16, reg_rule->max_bw, max_bw_6ghz);
 			flags = NL80211_RRF_AUTO_BW;
+			if (reg_rule->psd_flag)
+				flags |= NL80211_RRF_PSD;
 		} else {
 			break;
 		}
@@ -683,7 +690,7 @@ ath12k_reg_build_regd(struct ath12k_base *ab,
 				       reg_rule->start_freq,
 				       reg_rule->end_freq, max_bw,
 				       reg_rule->ant_gain, reg_rule->reg_power,
-				       flags);
+				       reg_rule->psd_eirp, flags);
 
 		/* Update dfs cac timeout if the dfs domain is ETSI and the
 		 * new rule covers weather radar band.
-- 
2.17.1