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From:   Aditya Kumar Singh <quic_adisi@quicinc.com>
To:     <ath12k@lists.infradead.org>
CC:     <linux-wireless@vger.kernel.org>,
        Aditya Kumar Singh <quic_adisi@quicinc.com>
Subject: [PATCH] wifi: ath12k: add parsing of phy bitmap for reg rules
Date:   Wed, 4 Oct 2023 14:58:18 +0530
Message-ID: <20231004092818.25130-1-quic_adisi@quicinc.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Certain regulatory domains could put restrictions on phy mode operation.
For example, in a few countries HE/EHT Operation is not allowed. For such
countries, firmware indicates this via phy bitmap in each reg rule.

Currently, there is no logic to parse this info and then pass it on to the
cfg80211/regulatory.

Add parsing of this phy bitmap from the regulatory channel change event and
then accordingly map it to cfg80211/regulatory flags and pass it on to it.

While at it, correct typo in debug print: s/dsf/dfs.

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

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/reg.c | 14 ++++++++++++++
 drivers/net/wireless/ath/ath12k/reg.h |  6 ++++++
 drivers/net/wireless/ath/ath12k/wmi.c |  5 +++--
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/reg.c b/drivers/net/wireless/ath/ath12k/reg.c
index 6ede91ebc8e1..5c006256c82a 100644
--- a/drivers/net/wireless/ath/ath12k/reg.c
+++ b/drivers/net/wireless/ath/ath12k/reg.c
@@ -314,6 +314,19 @@ static u32 ath12k_map_fw_reg_flags(u16 reg_flags)
 	return flags;
 }
 
+static u32 ath12k_map_fw_phy_flags(u32 phy_flags)
+{
+	u32 flags = 0;
+
+	if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11AX)
+		flags |= NL80211_RRF_NO_HE;
+
+	if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11BE)
+		flags |= NL80211_RRF_NO_EHT;
+
+	return flags;
+}
+
 static bool
 ath12k_reg_can_intersect(struct ieee80211_reg_rule *rule1,
 			 struct ieee80211_reg_rule *rule2)
@@ -638,6 +651,7 @@ ath12k_reg_build_regd(struct ath12k_base *ab,
 		}
 
 		flags |= ath12k_map_fw_reg_flags(reg_rule->flags);
+		flags |= ath12k_map_fw_phy_flags(reg_info->phybitmap);
 
 		ath12k_reg_update_rule(tmp_regd->reg_rules + i,
 				       reg_rule->start_freq,
diff --git a/drivers/net/wireless/ath/ath12k/reg.h b/drivers/net/wireless/ath/ath12k/reg.h
index 56d009a47234..35569f03042d 100644
--- a/drivers/net/wireless/ath/ath12k/reg.h
+++ b/drivers/net/wireless/ath/ath12k/reg.h
@@ -83,6 +83,12 @@ struct ath12k_reg_info {
 		[WMI_REG_CURRENT_MAX_AP_TYPE][WMI_REG_MAX_CLIENT_TYPE];
 };
 
+/* Phy bitmaps */
+enum ath12k_reg_phy_bitmap {
+	ATH12K_REG_PHY_BITMAP_NO11AX	= BIT(5),
+	ATH12K_REG_PHY_BITMAP_NO11BE	= BIT(6),
+};
+
 void ath12k_reg_init(struct ath12k *ar);
 void ath12k_reg_free(struct ath12k_base *ab);
 void ath12k_regd_update_work(struct work_struct *work);
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 80b3d51387b8..558ced12f7f7 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -4611,10 +4611,11 @@ static int ath12k_pull_reg_chan_list_ext_update_ev(struct ath12k_base *ab,
 	}
 
 	ath12k_dbg(ab, ATH12K_DBG_WMI,
-		   "%s:cc_ext %s dsf %d BW: min_2g %d max_2g %d min_5g %d max_5g %d",
+		   "%s:cc_ext %s dfs %d BW: min_2g %d max_2g %d min_5g %d max_5g %d, phy_bitmap: 0x%x",
 		   __func__, reg_info->alpha2, reg_info->dfs_region,
 		   reg_info->min_bw_2g, reg_info->max_bw_2g,
-		   reg_info->min_bw_5g, reg_info->max_bw_5g);
+		   reg_info->min_bw_5g, reg_info->max_bw_5g,
+		   reg_info->phybitmap);
 
 	ath12k_dbg(ab, ATH12K_DBG_WMI,
 		   "num_2g_reg_rules %d num_5g_reg_rules %d",
-- 
2.17.1