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Diffstat (limited to 'drivers/net/wireless/ath/ath11k/p2p.c')
-rw-r--r--drivers/net/wireless/ath/ath11k/p2p.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/p2p.c b/drivers/net/wireless/ath/ath11k/p2p.c
new file mode 100644
index 000000000000..01e14523f1fe
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/p2p.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "core.h"
+#include "wmi.h"
+#include "mac.h"
+#include "p2p.h"
+
+static void ath11k_p2p_noa_ie_fill(u8 *data, size_t len,
+ const struct ath11k_wmi_p2p_noa_info *noa)
+{
+ struct ieee80211_p2p_noa_attr *noa_attr;
+ u8 noa_descriptors, ctwindow;
+ bool oppps;
+ __le16 *noa_attr_len;
+ u16 attr_len;
+ int i;
+
+ ctwindow = u32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_CTWIN_TU);
+ oppps = u32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS);
+ noa_descriptors = u32_get_bits(noa->noa_attr,
+ WMI_P2P_NOA_INFO_DESC_NUM);
+
+ /* P2P IE */
+ data[0] = WLAN_EID_VENDOR_SPECIFIC;
+ data[1] = len - 2;
+ data[2] = (WLAN_OUI_WFA >> 16) & 0xff;
+ data[3] = (WLAN_OUI_WFA >> 8) & 0xff;
+ data[4] = (WLAN_OUI_WFA >> 0) & 0xff;
+ data[5] = WLAN_OUI_TYPE_WFA_P2P;
+
+ /* NOA ATTR */
+ data[6] = IEEE80211_P2P_ATTR_ABSENCE_NOTICE;
+ noa_attr_len = (__le16 *)&data[7]; /* 2 bytes */
+ noa_attr = (struct ieee80211_p2p_noa_attr *)&data[9];
+
+ noa_attr->index = u32_get_bits(noa->noa_attr,
+ WMI_P2P_NOA_INFO_INDEX);
+ noa_attr->oppps_ctwindow = ctwindow;
+ if (oppps)
+ noa_attr->oppps_ctwindow |= IEEE80211_P2P_OPPPS_ENABLE_BIT;
+
+ for (i = 0; i < noa_descriptors; i++) {
+ noa_attr->desc[i].count = noa->descriptors[i].type_count;
+ noa_attr->desc[i].duration =
+ cpu_to_le32(noa->descriptors[i].duration);
+ noa_attr->desc[i].interval =
+ cpu_to_le32(noa->descriptors[i].interval);
+ noa_attr->desc[i].start_time =
+ cpu_to_le32(noa->descriptors[i].start_time);
+ }
+
+ attr_len = 2; /* index + oppps_ctwindow */
+ attr_len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
+ *noa_attr_len = __cpu_to_le16(attr_len);
+}
+
+static size_t
+ath11k_p2p_noa_ie_len_compute(const struct ath11k_wmi_p2p_noa_info *noa)
+{
+ size_t len = 0;
+ u8 noa_descriptors = u32_get_bits(noa->noa_attr,
+ WMI_P2P_NOA_INFO_DESC_NUM);
+
+ if (!(noa_descriptors) &&
+ !(u32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS)))
+ return 0;
+
+ len += 1 + 1 + 4; /* EID + len + OUI */
+ len += 1 + 2; /* noa attr + attr len */
+ len += 1 + 1; /* index + oppps_ctwindow */
+ len += noa_descriptors *
+ sizeof(struct ieee80211_p2p_noa_desc);
+
+ return len;
+}
+
+static void ath11k_p2p_noa_ie_assign(struct ath11k_vif *arvif, void *ie,
+ size_t len)
+{
+ struct ath11k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ kfree(arvif->u.ap.noa_data);
+
+ arvif->u.ap.noa_data = ie;
+ arvif->u.ap.noa_len = len;
+}
+
+static void __ath11k_p2p_noa_update(struct ath11k_vif *arvif,
+ const struct ath11k_wmi_p2p_noa_info *noa)
+{
+ struct ath11k *ar = arvif->ar;
+ void *ie;
+ size_t len;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ ath11k_p2p_noa_ie_assign(arvif, NULL, 0);
+
+ len = ath11k_p2p_noa_ie_len_compute(noa);
+ if (!len)
+ return;
+
+ ie = kmalloc(len, GFP_ATOMIC);
+ if (!ie)
+ return;
+
+ ath11k_p2p_noa_ie_fill(ie, len, noa);
+ ath11k_p2p_noa_ie_assign(arvif, ie, len); }
+
+void ath11k_p2p_noa_update(struct ath11k_vif *arvif,
+ const struct ath11k_wmi_p2p_noa_info *noa)
+{
+ struct ath11k *ar = arvif->ar;
+
+ spin_lock_bh(&ar->data_lock);
+ __ath11k_p2p_noa_update(arvif, noa);
+ spin_unlock_bh(&ar->data_lock);
+}
+
+static void ath11k_p2p_noa_update_vdev_iter(void *data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
+ struct ath11k_p2p_noa_arg *arg = data;
+
+ if (arvif->vdev_id != arg->vdev_id)
+ return;
+
+ ath11k_p2p_noa_update(arvif, arg->noa);
+}
+
+void ath11k_p2p_noa_update_by_vdev_id(struct ath11k *ar, u32 vdev_id,
+ const struct ath11k_wmi_p2p_noa_info *noa)
+{
+ struct ath11k_p2p_noa_arg arg = {
+ .vdev_id = vdev_id,
+ .noa = noa,
+ };
+
+ ieee80211_iterate_active_interfaces_atomic(ar->hw,
+ IEEE80211_IFACE_ITER_NORMAL,
+ ath11k_p2p_noa_update_vdev_iter,
+ &arg);
+}