forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
3.5 KiB
145 lines
3.5 KiB
// SPDX-License-Identifier: ISC |
|
/* |
|
* Copyright (c) 2015 Qualcomm Atheros, Inc. |
|
*/ |
|
|
|
#include "core.h" |
|
#include "wmi.h" |
|
#include "mac.h" |
|
#include "p2p.h" |
|
|
|
static void ath10k_p2p_noa_ie_fill(u8 *data, size_t len, |
|
const struct wmi_p2p_noa_info *noa) |
|
{ |
|
struct ieee80211_p2p_noa_attr *noa_attr; |
|
u8 ctwindow_oppps = noa->ctwindow_oppps; |
|
u8 ctwindow = ctwindow_oppps >> WMI_P2P_OPPPS_CTWINDOW_OFFSET; |
|
bool oppps = !!(ctwindow_oppps & WMI_P2P_OPPPS_ENABLE_BIT); |
|
__le16 *noa_attr_len; |
|
u16 attr_len; |
|
u8 noa_descriptors = noa->num_descriptors; |
|
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 = noa->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 ath10k_p2p_noa_ie_len_compute(const struct wmi_p2p_noa_info *noa) |
|
{ |
|
size_t len = 0; |
|
|
|
if (!noa->num_descriptors && |
|
!(noa->ctwindow_oppps & WMI_P2P_OPPPS_ENABLE_BIT)) |
|
return 0; |
|
|
|
len += 1 + 1 + 4; /* EID + len + OUI */ |
|
len += 1 + 2; /* noa attr + attr len */ |
|
len += 1 + 1; /* index + oppps_ctwindow */ |
|
len += noa->num_descriptors * sizeof(struct ieee80211_p2p_noa_desc); |
|
|
|
return len; |
|
} |
|
|
|
static void ath10k_p2p_noa_ie_assign(struct ath10k_vif *arvif, void *ie, |
|
size_t len) |
|
{ |
|
struct ath10k *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 __ath10k_p2p_noa_update(struct ath10k_vif *arvif, |
|
const struct wmi_p2p_noa_info *noa) |
|
{ |
|
struct ath10k *ar = arvif->ar; |
|
void *ie; |
|
size_t len; |
|
|
|
lockdep_assert_held(&ar->data_lock); |
|
|
|
ath10k_p2p_noa_ie_assign(arvif, NULL, 0); |
|
|
|
len = ath10k_p2p_noa_ie_len_compute(noa); |
|
if (!len) |
|
return; |
|
|
|
ie = kmalloc(len, GFP_ATOMIC); |
|
if (!ie) |
|
return; |
|
|
|
ath10k_p2p_noa_ie_fill(ie, len, noa); |
|
ath10k_p2p_noa_ie_assign(arvif, ie, len); |
|
} |
|
|
|
void ath10k_p2p_noa_update(struct ath10k_vif *arvif, |
|
const struct wmi_p2p_noa_info *noa) |
|
{ |
|
struct ath10k *ar = arvif->ar; |
|
|
|
spin_lock_bh(&ar->data_lock); |
|
__ath10k_p2p_noa_update(arvif, noa); |
|
spin_unlock_bh(&ar->data_lock); |
|
} |
|
|
|
struct ath10k_p2p_noa_arg { |
|
u32 vdev_id; |
|
const struct wmi_p2p_noa_info *noa; |
|
}; |
|
|
|
static void ath10k_p2p_noa_update_vdev_iter(void *data, u8 *mac, |
|
struct ieee80211_vif *vif) |
|
{ |
|
struct ath10k_vif *arvif = (void *)vif->drv_priv; |
|
struct ath10k_p2p_noa_arg *arg = data; |
|
|
|
if (arvif->vdev_id != arg->vdev_id) |
|
return; |
|
|
|
ath10k_p2p_noa_update(arvif, arg->noa); |
|
} |
|
|
|
void ath10k_p2p_noa_update_by_vdev_id(struct ath10k *ar, u32 vdev_id, |
|
const struct wmi_p2p_noa_info *noa) |
|
{ |
|
struct ath10k_p2p_noa_arg arg = { |
|
.vdev_id = vdev_id, |
|
.noa = noa, |
|
}; |
|
|
|
ieee80211_iterate_active_interfaces_atomic(ar->hw, |
|
ATH10K_ITER_NORMAL_FLAGS, |
|
ath10k_p2p_noa_update_vdev_iter, |
|
&arg); |
|
}
|
|
|