From e54def4ad8144ab15f826416e2e0f290ef1901b4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 19 Jun 2024 23:00:30 +0200 Subject: Adding upstream version 6.9.2. Signed-off-by: Daniel Baumann --- drivers/net/wireless/ath/ath12k/p2p.c | 142 ++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 drivers/net/wireless/ath/ath12k/p2p.c (limited to 'drivers/net/wireless/ath/ath12k/p2p.c') diff --git a/drivers/net/wireless/ath/ath12k/p2p.c b/drivers/net/wireless/ath/ath12k/p2p.c new file mode 100644 index 0000000000..d334df7200 --- /dev/null +++ b/drivers/net/wireless/ath/ath12k/p2p.c @@ -0,0 +1,142 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include +#include "core.h" +#include "mac.h" +#include "p2p.h" + +static void ath12k_p2p_noa_ie_fill(u8 *data, size_t len, + const struct ath12k_wmi_p2p_noa_info *noa) +{ + struct ieee80211_p2p_noa_attr *noa_attr; + u8 ctwindow = le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_CTWIN_TU); + bool oppps = le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS); + __le16 *noa_attr_len; + u16 attr_len; + u8 noa_descriptors = le32_get_bits(noa->noa_attr, + WMI_P2P_NOA_INFO_DESC_NUM); + int i; + + /* 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 = le32_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 = + __le32_to_cpu(noa->descriptors[i].type_count); + noa_attr->desc[i].duration = noa->descriptors[i].duration; + noa_attr->desc[i].interval = noa->descriptors[i].interval; + noa_attr->desc[i].start_time = 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 ath12k_p2p_noa_ie_len_compute(const struct ath12k_wmi_p2p_noa_info *noa) +{ + size_t len = 0; + + if (!(le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM)) && + !(le32_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 += le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM) * + sizeof(struct ieee80211_p2p_noa_desc); + + return len; +} + +static void ath12k_p2p_noa_ie_assign(struct ath12k_vif *arvif, void *ie, + size_t len) +{ + struct ath12k *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 __ath12k_p2p_noa_update(struct ath12k_vif *arvif, + const struct ath12k_wmi_p2p_noa_info *noa) +{ + struct ath12k *ar = arvif->ar; + void *ie; + size_t len; + + lockdep_assert_held(&ar->data_lock); + + ath12k_p2p_noa_ie_assign(arvif, NULL, 0); + + len = ath12k_p2p_noa_ie_len_compute(noa); + if (!len) + return; + + ie = kmalloc(len, GFP_ATOMIC); + if (!ie) + return; + + ath12k_p2p_noa_ie_fill(ie, len, noa); + ath12k_p2p_noa_ie_assign(arvif, ie, len); +} + +void ath12k_p2p_noa_update(struct ath12k_vif *arvif, + const struct ath12k_wmi_p2p_noa_info *noa) +{ + struct ath12k *ar = arvif->ar; + + spin_lock_bh(&ar->data_lock); + __ath12k_p2p_noa_update(arvif, noa); + spin_unlock_bh(&ar->data_lock); +} + +static void ath12k_p2p_noa_update_vdev_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif); + struct ath12k_p2p_noa_arg *arg = data; + + if (arvif->vdev_id != arg->vdev_id) + return; + + ath12k_p2p_noa_update(arvif, arg->noa); +} + +void ath12k_p2p_noa_update_by_vdev_id(struct ath12k *ar, u32 vdev_id, + const struct ath12k_wmi_p2p_noa_info *noa) +{ + struct ath12k_p2p_noa_arg arg = { + .vdev_id = vdev_id, + .noa = noa, + }; + + ieee80211_iterate_active_interfaces_atomic(ath12k_ar_to_hw(ar), + IEEE80211_IFACE_ITER_NORMAL, + ath12k_p2p_noa_update_vdev_iter, + &arg); +} -- cgit v1.2.3