[PATCH v2 6/6] wifi: ath12k: support SMPS configuration for 6 GHz

[Pradeep Kumar Chitrapu]

Parse SMPS configuration from IEs and configure. Without this,
SMPS is not enabled for 6 GHz band. This is disabled for
WCN7850 as hardware does not support it.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc at quicinc.com>
---
 drivers/net/wireless/ath/ath12k/hw.c  |  3 +++
 drivers/net/wireless/ath/ath12k/hw.h  |  1 +
 drivers/net/wireless/ath/ath12k/mac.c | 26 ++++++++++++++++++--------
 3 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/hw.c b/drivers/net/wireless/ath/ath12k/hw.c
index 0b17dfd47856..3321d78575eb 100644
--- a/drivers/net/wireless/ath/ath12k/hw.c
+++ b/drivers/net/wireless/ath/ath12k/hw.c
@@ -920,6 +920,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
 		.otp_board_id_register = QCN9274_QFPROM_RAW_RFA_PDET_ROW13_LSB,
 
 		.supports_sta_ps = false,
+		.supports_dynamic_smps_6ghz = true,
 	},
 	{
 		.name = "wcn7850 hw2.0",
@@ -993,6 +994,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
 		.otp_board_id_register = 0,
 
 		.supports_sta_ps = true,
+		.supports_dynamic_smps_6ghz = false,
 	},
 	{
 		.name = "qcn9274 hw2.0",
@@ -1061,6 +1063,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
 		.otp_board_id_register = QCN9274_QFPROM_RAW_RFA_PDET_ROW13_LSB,
 
 		.supports_sta_ps = false,
+		.supports_dynamic_smps_6ghz = true,
 	},
 };
 
diff --git a/drivers/net/wireless/ath/ath12k/hw.h b/drivers/net/wireless/ath/ath12k/hw.h
index 87965980b938..263efa077611 100644
--- a/drivers/net/wireless/ath/ath12k/hw.h
+++ b/drivers/net/wireless/ath/ath12k/hw.h
@@ -211,6 +211,7 @@ struct ath12k_hw_params {
 	u32 otp_board_id_register;
 
 	bool supports_sta_ps;
+	bool supports_dynamic_smps_6ghz;
 };
 
 struct ath12k_hw_ops {
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index b4114dd22bf0..2f1e5e249ef3 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -1964,12 +1964,17 @@ static void ath12k_peer_assoc_h_he_6ghz(struct ath12k *ar,
 }
 
 static inline int ath12k_get_smps_from_capa(const struct ieee80211_sta_ht_cap *ht_cap,
+					    const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
 					    int *smps)
 {
-	if (!ht_cap->ht_supported)
+	if (!ht_cap->ht_supported && !he_6ghz_capa->capa)
 		return -EOPNOTSUPP;
 
-	*smps = u16_get_bits(ht_cap->cap, IEEE80211_HT_CAP_SM_PS);
+	if (ht_cap->ht_supported)
+		*smps = u16_get_bits(ht_cap->cap, IEEE80211_HT_CAP_SM_PS);
+	else
+		*smps = le16_get_bits(he_6ghz_capa->capa,
+				      IEEE80211_HE_6GHZ_CAP_SM_PS);
 
 	if (*smps >= ARRAY_SIZE(ath12k_smps_map))
 		return -EINVAL;
@@ -1980,10 +1985,11 @@ static inline int ath12k_get_smps_from_capa(const struct ieee80211_sta_ht_cap *h
 static void ath12k_peer_assoc_h_smps(struct ieee80211_sta *sta,
 				     struct ath12k_wmi_peer_assoc_arg *arg)
 {
+	const struct ieee80211_he_6ghz_capa *he_6ghz_capa = &sta->deflink.he_6ghz_capa;
 	const struct ieee80211_sta_ht_cap *ht_cap = &sta->deflink.ht_cap;
 	int smps;
 
-	if (ath12k_get_smps_from_capa(ht_cap, &smps))
+	if (ath12k_get_smps_from_capa(ht_cap, he_6ghz_capa, &smps))
 		return;
 
 	switch (smps) {
@@ -2457,11 +2463,12 @@ static void ath12k_peer_assoc_prepare(struct ath12k *ar,
 
 static int ath12k_setup_peer_smps(struct ath12k *ar, struct ath12k_vif *arvif,
 				  const u8 *addr,
-				  const struct ieee80211_sta_ht_cap *ht_cap)
+				  const struct ieee80211_sta_ht_cap *ht_cap,
+				  const struct ieee80211_he_6ghz_capa *he_6ghz_capa)
 {
 	int smps, ret = 0;
 
-	ret = ath12k_get_smps_from_capa(ht_cap, &smps);
+	ret = ath12k_get_smps_from_capa(ht_cap, he_6ghz_capa, &smps);
 	if (ret < 0)
 		return ret;
 
@@ -2514,7 +2521,8 @@ static void ath12k_bss_assoc(struct ath12k *ar,
 	}
 
 	ret = ath12k_setup_peer_smps(ar, arvif, bss_conf->bssid,
-				     &ap_sta->deflink.ht_cap);
+				     &ap_sta->deflink.ht_cap,
+				     &ap_sta->deflink.he_6ghz_capa);
 	if (ret) {
 		ath12k_warn(ar->ab, "failed to setup peer SMPS for vdev %d: %d\n",
 			    arvif->vdev_id, ret);
@@ -3677,7 +3685,8 @@ static int ath12k_station_assoc(struct ath12k *ar,
 		return 0;
 
 	ret = ath12k_setup_peer_smps(ar, arvif, sta->addr,
-				     &sta->deflink.ht_cap);
+				     &sta->deflink.ht_cap,
+				     &sta->deflink.he_6ghz_capa);
 	if (ret) {
 		ath12k_warn(ar->ab, "failed to setup peer SMPS for vdev %d: %d\n",
 			    arvif->vdev_id, ret);
@@ -8104,7 +8113,8 @@ static int ath12k_mac_hw_register(struct ath12k_hw *ah)
 	 * for each band for a dual band capable radio. It will be tricky to
 	 * handle it when the ht capability different for each band.
 	 */
-	if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS)
+	if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS ||
+	    (ar->supports_6ghz && ab->hw_params->supports_dynamic_smps_6ghz))
 		wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
 
 	wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
-- 
2.17.1