wifi: iwlwifi: mvm: add support for Extra EHT LTF

[carl9170fw.git] / include / linux / ieee80211.h

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index d0656646697346b5f8b7b3db2909c5741d6db9b7..881b67b138ecce66dec1216ac32eedc0fe031136 100644 (file)
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2877,6 +2877,7 @@ ieee80211_he_spr_size(const u8 *he_spr_ie)
 
 /* Maximum number of supported EHT LTF is split */
 #define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK       0xc0
+#define IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF              0x40
 #define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK       0x07
 
 #define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK                 0x78
@@ -4563,6 +4564,76 @@ static inline u8 ieee80211_mle_common_size(const u8 *data)
        return sizeof(*mle) + common + mle->variable[0];
 }
 
+/**
+ * ieee80211_mle_get_eml_sync_delay - returns the medium sync delay
+ * @data: pointer to the multi link EHT IE
+ *
+ * The element is assumed to be big enough. This must be checked by
+ * ieee80211_mle_size_ok().
+ * If the medium synchronization can't be found (the type is not basic, or
+ * the medium sync presence bit is clear), 0 will be returned.
+ */
+static inline u16 ieee80211_mle_get_eml_med_sync_delay(const u8 *data)
+{
+       const struct ieee80211_multi_link_elem *mle = (const void *)data;
+       u16 control = le16_to_cpu(mle->control);
+       const u8 *common = mle->variable;
+
+       if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) !=
+           IEEE80211_ML_CONTROL_TYPE_BASIC)
+               return 0;
+
+       /* common points now at the beginning of
+        * ieee80211_mle_basic_common_info
+        */
+       common += sizeof(struct ieee80211_mle_basic_common_info);
+
+       if (!(control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY))
+               return 0;
+
+       if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+               common += 1;
+       if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+               common += 1;
+
+       return get_unaligned_le16(common);
+}
+
+/**
+ * ieee80211_mle_get_eml_cap - returns the EML capability
+ * @data: pointer to the multi link EHT IE
+ *
+ * The element is assumed to be big enough. This must be checked by
+ * ieee80211_mle_size_ok().
+ * If the EML capability can't be found (the type is not basic, or
+ * the EML capability presence bit is clear), 0 will be returned.
+ */
+static inline u16 ieee80211_mle_get_eml_cap(const u8 *data)
+{
+       const struct ieee80211_multi_link_elem *mle = (const void *)data;
+       u16 control = le16_to_cpu(mle->control);
+       const u8 *common = mle->variable;
+
+       if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) !=
+           IEEE80211_ML_CONTROL_TYPE_BASIC)
+               return 0;
+
+       /* common points now at the beginning of ieee80211_mle_basic_common_info */
+       common += sizeof(struct ieee80211_mle_basic_common_info);
+
+       if (!(control & IEEE80211_MLC_BASIC_PRES_EML_CAPA))
+               return 0;
+
+       if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+               common += 1;
+       if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+               common += 1;
+       if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
+               common += 2;
+
+       return get_unaligned_le16(common);
+}
+
 /**
  * ieee80211_mle_size_ok - validate multi-link element size
  * @data: pointer to the element data