483 lines
13 KiB
C
483 lines
13 KiB
C
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/*
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* Copyright (c) 2015-2017 Qualcomm Atheros, Inc.
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* Copyright (c) 2018, The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "mac.h"
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#include <net/mac80211.h>
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#include "hif.h"
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#include "core.h"
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#include "debug.h"
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#include "wmi.h"
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#include "wmi-ops.h"
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static const struct wiphy_wowlan_support ath10k_wowlan_support = {
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.flags = WIPHY_WOWLAN_DISCONNECT |
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WIPHY_WOWLAN_MAGIC_PKT,
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.pattern_min_len = WOW_MIN_PATTERN_SIZE,
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.pattern_max_len = WOW_MAX_PATTERN_SIZE,
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.max_pkt_offset = WOW_MAX_PKT_OFFSET,
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};
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static int ath10k_wow_vif_cleanup(struct ath10k_vif *arvif)
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{
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struct ath10k *ar = arvif->ar;
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int i, ret;
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for (i = 0; i < WOW_EVENT_MAX; i++) {
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ret = ath10k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 0);
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if (ret) {
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ath10k_warn(ar, "failed to issue wow wakeup for event %s on vdev %i: %d\n",
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wow_wakeup_event(i), arvif->vdev_id, ret);
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return ret;
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}
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}
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for (i = 0; i < ar->wow.max_num_patterns; i++) {
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ret = ath10k_wmi_wow_del_pattern(ar, arvif->vdev_id, i);
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if (ret) {
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ath10k_warn(ar, "failed to delete wow pattern %d for vdev %i: %d\n",
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i, arvif->vdev_id, ret);
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return ret;
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}
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}
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return 0;
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}
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static int ath10k_wow_cleanup(struct ath10k *ar)
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{
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struct ath10k_vif *arvif;
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int ret;
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lockdep_assert_held(&ar->conf_mutex);
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list_for_each_entry(arvif, &ar->arvifs, list) {
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ret = ath10k_wow_vif_cleanup(arvif);
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if (ret) {
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ath10k_warn(ar, "failed to clean wow wakeups on vdev %i: %d\n",
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arvif->vdev_id, ret);
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return ret;
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}
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}
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return 0;
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}
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/**
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* Convert a 802.3 format to a 802.11 format.
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* +------------+-----------+--------+----------------+
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* 802.3: |dest mac(6B)|src mac(6B)|type(2B)| body... |
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* +------------+-----------+--------+----------------+
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* |__ |_______ |____________ |________
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* | | | |
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* +--+------------+----+-----------+---------------+-----------+
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* 802.11: |4B|dest mac(6B)| 6B |src mac(6B)| 8B |type(2B)| body... |
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* +--+------------+----+-----------+---------------+-----------+
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*/
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static void ath10k_wow_convert_8023_to_80211
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(struct cfg80211_pkt_pattern *new,
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const struct cfg80211_pkt_pattern *old)
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{
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u8 hdr_8023_pattern[ETH_HLEN] = {};
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u8 hdr_8023_bit_mask[ETH_HLEN] = {};
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u8 hdr_80211_pattern[WOW_HDR_LEN] = {};
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u8 hdr_80211_bit_mask[WOW_HDR_LEN] = {};
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int total_len = old->pkt_offset + old->pattern_len;
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int hdr_80211_end_offset;
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struct ieee80211_hdr_3addr *new_hdr_pattern =
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(struct ieee80211_hdr_3addr *)hdr_80211_pattern;
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struct ieee80211_hdr_3addr *new_hdr_mask =
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(struct ieee80211_hdr_3addr *)hdr_80211_bit_mask;
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struct ethhdr *old_hdr_pattern = (struct ethhdr *)hdr_8023_pattern;
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struct ethhdr *old_hdr_mask = (struct ethhdr *)hdr_8023_bit_mask;
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int hdr_len = sizeof(*new_hdr_pattern);
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struct rfc1042_hdr *new_rfc_pattern =
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(struct rfc1042_hdr *)(hdr_80211_pattern + hdr_len);
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struct rfc1042_hdr *new_rfc_mask =
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(struct rfc1042_hdr *)(hdr_80211_bit_mask + hdr_len);
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int rfc_len = sizeof(*new_rfc_pattern);
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memcpy(hdr_8023_pattern + old->pkt_offset,
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old->pattern, ETH_HLEN - old->pkt_offset);
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memcpy(hdr_8023_bit_mask + old->pkt_offset,
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old->mask, ETH_HLEN - old->pkt_offset);
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/* Copy destination address */
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memcpy(new_hdr_pattern->addr1, old_hdr_pattern->h_dest, ETH_ALEN);
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memcpy(new_hdr_mask->addr1, old_hdr_mask->h_dest, ETH_ALEN);
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/* Copy source address */
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memcpy(new_hdr_pattern->addr3, old_hdr_pattern->h_source, ETH_ALEN);
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memcpy(new_hdr_mask->addr3, old_hdr_mask->h_source, ETH_ALEN);
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/* Copy logic link type */
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memcpy(&new_rfc_pattern->snap_type,
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&old_hdr_pattern->h_proto,
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sizeof(old_hdr_pattern->h_proto));
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memcpy(&new_rfc_mask->snap_type,
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&old_hdr_mask->h_proto,
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sizeof(old_hdr_mask->h_proto));
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/* Caculate new pkt_offset */
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if (old->pkt_offset < ETH_ALEN)
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new->pkt_offset = old->pkt_offset +
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offsetof(struct ieee80211_hdr_3addr, addr1);
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else if (old->pkt_offset < offsetof(struct ethhdr, h_proto))
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new->pkt_offset = old->pkt_offset +
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offsetof(struct ieee80211_hdr_3addr, addr3) -
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offsetof(struct ethhdr, h_source);
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else
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new->pkt_offset = old->pkt_offset + hdr_len + rfc_len - ETH_HLEN;
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/* Caculate new hdr end offset */
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if (total_len > ETH_HLEN)
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hdr_80211_end_offset = hdr_len + rfc_len;
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else if (total_len > offsetof(struct ethhdr, h_proto))
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hdr_80211_end_offset = hdr_len + rfc_len + total_len - ETH_HLEN;
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else if (total_len > ETH_ALEN)
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hdr_80211_end_offset = total_len - ETH_ALEN +
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offsetof(struct ieee80211_hdr_3addr, addr3);
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else
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hdr_80211_end_offset = total_len +
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offsetof(struct ieee80211_hdr_3addr, addr1);
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new->pattern_len = hdr_80211_end_offset - new->pkt_offset;
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memcpy((u8 *)new->pattern,
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hdr_80211_pattern + new->pkt_offset,
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new->pattern_len);
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memcpy((u8 *)new->mask,
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hdr_80211_bit_mask + new->pkt_offset,
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new->pattern_len);
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if (total_len > ETH_HLEN) {
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/* Copy frame body */
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memcpy((u8 *)new->pattern + new->pattern_len,
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(void *)old->pattern + ETH_HLEN - old->pkt_offset,
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total_len - ETH_HLEN);
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memcpy((u8 *)new->mask + new->pattern_len,
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(void *)old->mask + ETH_HLEN - old->pkt_offset,
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total_len - ETH_HLEN);
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new->pattern_len += total_len - ETH_HLEN;
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}
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}
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static int ath10k_vif_wow_set_wakeups(struct ath10k_vif *arvif,
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struct cfg80211_wowlan *wowlan)
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{
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int ret, i;
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unsigned long wow_mask = 0;
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struct ath10k *ar = arvif->ar;
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const struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
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int pattern_id = 0;
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/* Setup requested WOW features */
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switch (arvif->vdev_type) {
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case WMI_VDEV_TYPE_IBSS:
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__set_bit(WOW_BEACON_EVENT, &wow_mask);
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/* fall through */
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case WMI_VDEV_TYPE_AP:
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__set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
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__set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
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__set_bit(WOW_PROBE_REQ_WPS_IE_EVENT, &wow_mask);
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__set_bit(WOW_AUTH_REQ_EVENT, &wow_mask);
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__set_bit(WOW_ASSOC_REQ_EVENT, &wow_mask);
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__set_bit(WOW_HTT_EVENT, &wow_mask);
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__set_bit(WOW_RA_MATCH_EVENT, &wow_mask);
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break;
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case WMI_VDEV_TYPE_STA:
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if (wowlan->disconnect) {
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__set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
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__set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
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__set_bit(WOW_BMISS_EVENT, &wow_mask);
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__set_bit(WOW_CSA_IE_EVENT, &wow_mask);
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}
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if (wowlan->magic_pkt)
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__set_bit(WOW_MAGIC_PKT_RECVD_EVENT, &wow_mask);
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break;
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default:
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break;
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}
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for (i = 0; i < wowlan->n_patterns; i++) {
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u8 bitmask[WOW_MAX_PATTERN_SIZE] = {};
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u8 ath_pattern[WOW_MAX_PATTERN_SIZE] = {};
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u8 ath_bitmask[WOW_MAX_PATTERN_SIZE] = {};
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struct cfg80211_pkt_pattern new_pattern = {};
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struct cfg80211_pkt_pattern old_pattern = patterns[i];
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int j;
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new_pattern.pattern = ath_pattern;
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new_pattern.mask = ath_bitmask;
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if (patterns[i].pattern_len > WOW_MAX_PATTERN_SIZE)
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continue;
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/* convert bytemask to bitmask */
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for (j = 0; j < patterns[i].pattern_len; j++)
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if (patterns[i].mask[j / 8] & BIT(j % 8))
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bitmask[j] = 0xff;
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old_pattern.mask = bitmask;
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new_pattern = old_pattern;
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if (ar->wmi.rx_decap_mode == ATH10K_HW_TXRX_NATIVE_WIFI) {
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if (patterns[i].pkt_offset < ETH_HLEN)
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ath10k_wow_convert_8023_to_80211(&new_pattern,
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&old_pattern);
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else
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new_pattern.pkt_offset += WOW_HDR_LEN - ETH_HLEN;
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}
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if (WARN_ON(new_pattern.pattern_len > WOW_MAX_PATTERN_SIZE))
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return -EINVAL;
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ret = ath10k_wmi_wow_add_pattern(ar, arvif->vdev_id,
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pattern_id,
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new_pattern.pattern,
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new_pattern.mask,
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new_pattern.pattern_len,
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new_pattern.pkt_offset);
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if (ret) {
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ath10k_warn(ar, "failed to add pattern %i to vdev %i: %d\n",
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pattern_id,
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arvif->vdev_id, ret);
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return ret;
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}
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pattern_id++;
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__set_bit(WOW_PATTERN_MATCH_EVENT, &wow_mask);
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}
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for (i = 0; i < WOW_EVENT_MAX; i++) {
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if (!test_bit(i, &wow_mask))
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continue;
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ret = ath10k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 1);
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if (ret) {
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ath10k_warn(ar, "failed to enable wakeup event %s on vdev %i: %d\n",
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wow_wakeup_event(i), arvif->vdev_id, ret);
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return ret;
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}
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}
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return 0;
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}
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static int ath10k_wow_set_wakeups(struct ath10k *ar,
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struct cfg80211_wowlan *wowlan)
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{
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struct ath10k_vif *arvif;
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int ret;
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lockdep_assert_held(&ar->conf_mutex);
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list_for_each_entry(arvif, &ar->arvifs, list) {
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ret = ath10k_vif_wow_set_wakeups(arvif, wowlan);
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if (ret) {
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ath10k_warn(ar, "failed to set wow wakeups on vdev %i: %d\n",
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arvif->vdev_id, ret);
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return ret;
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}
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}
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return 0;
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}
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static int ath10k_wow_enable(struct ath10k *ar)
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{
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int ret;
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lockdep_assert_held(&ar->conf_mutex);
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reinit_completion(&ar->target_suspend);
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ret = ath10k_wmi_wow_enable(ar);
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if (ret) {
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ath10k_warn(ar, "failed to issue wow enable: %d\n", ret);
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return ret;
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}
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ret = wait_for_completion_timeout(&ar->target_suspend, 3 * HZ);
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if (ret == 0) {
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ath10k_warn(ar, "timed out while waiting for suspend completion\n");
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return -ETIMEDOUT;
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}
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return 0;
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}
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static int ath10k_wow_wakeup(struct ath10k *ar)
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{
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int ret;
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lockdep_assert_held(&ar->conf_mutex);
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reinit_completion(&ar->wow.wakeup_completed);
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ret = ath10k_wmi_wow_host_wakeup_ind(ar);
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if (ret) {
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ath10k_warn(ar, "failed to send wow wakeup indication: %d\n",
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ret);
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return ret;
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}
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|
||
|
|
ret = wait_for_completion_timeout(&ar->wow.wakeup_completed, 3 * HZ);
|
||
|
|
if (ret == 0) {
|
||
|
|
ath10k_warn(ar, "timed out while waiting for wow wakeup completion\n");
|
||
|
|
return -ETIMEDOUT;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ath10k_wow_op_suspend(struct ieee80211_hw *hw,
|
||
|
|
struct cfg80211_wowlan *wowlan)
|
||
|
|
{
|
||
|
|
struct ath10k *ar = hw->priv;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
mutex_lock(&ar->conf_mutex);
|
||
|
|
|
||
|
|
if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
|
||
|
|
ar->running_fw->fw_file.fw_features))) {
|
||
|
|
ret = 1;
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ath10k_wow_cleanup(ar);
|
||
|
|
if (ret) {
|
||
|
|
ath10k_warn(ar, "failed to clear wow wakeup events: %d\n",
|
||
|
|
ret);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ath10k_wow_set_wakeups(ar, wowlan);
|
||
|
|
if (ret) {
|
||
|
|
ath10k_warn(ar, "failed to set wow wakeup events: %d\n",
|
||
|
|
ret);
|
||
|
|
goto cleanup;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ath10k_wow_enable(ar);
|
||
|
|
if (ret) {
|
||
|
|
ath10k_warn(ar, "failed to start wow: %d\n", ret);
|
||
|
|
goto cleanup;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ath10k_hif_suspend(ar);
|
||
|
|
if (ret) {
|
||
|
|
ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
|
||
|
|
goto wakeup;
|
||
|
|
}
|
||
|
|
|
||
|
|
goto exit;
|
||
|
|
|
||
|
|
wakeup:
|
||
|
|
ath10k_wow_wakeup(ar);
|
||
|
|
|
||
|
|
cleanup:
|
||
|
|
ath10k_wow_cleanup(ar);
|
||
|
|
|
||
|
|
exit:
|
||
|
|
mutex_unlock(&ar->conf_mutex);
|
||
|
|
return ret ? 1 : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ath10k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled)
|
||
|
|
{
|
||
|
|
struct ath10k *ar = hw->priv;
|
||
|
|
|
||
|
|
mutex_lock(&ar->conf_mutex);
|
||
|
|
if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
|
||
|
|
ar->running_fw->fw_file.fw_features)) {
|
||
|
|
device_set_wakeup_enable(ar->dev, enabled);
|
||
|
|
}
|
||
|
|
mutex_unlock(&ar->conf_mutex);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ath10k_wow_op_resume(struct ieee80211_hw *hw)
|
||
|
|
{
|
||
|
|
struct ath10k *ar = hw->priv;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
mutex_lock(&ar->conf_mutex);
|
||
|
|
|
||
|
|
if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
|
||
|
|
ar->running_fw->fw_file.fw_features))) {
|
||
|
|
ret = 1;
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ath10k_hif_resume(ar);
|
||
|
|
if (ret) {
|
||
|
|
ath10k_warn(ar, "failed to resume hif: %d\n", ret);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ath10k_wow_wakeup(ar);
|
||
|
|
if (ret)
|
||
|
|
ath10k_warn(ar, "failed to wakeup from wow: %d\n", ret);
|
||
|
|
|
||
|
|
exit:
|
||
|
|
if (ret) {
|
||
|
|
switch (ar->state) {
|
||
|
|
case ATH10K_STATE_ON:
|
||
|
|
ar->state = ATH10K_STATE_RESTARTING;
|
||
|
|
ret = 1;
|
||
|
|
break;
|
||
|
|
case ATH10K_STATE_OFF:
|
||
|
|
case ATH10K_STATE_RESTARTING:
|
||
|
|
case ATH10K_STATE_RESTARTED:
|
||
|
|
case ATH10K_STATE_UTF:
|
||
|
|
case ATH10K_STATE_WEDGED:
|
||
|
|
ath10k_warn(ar, "encountered unexpected device state %d on resume, cannot recover\n",
|
||
|
|
ar->state);
|
||
|
|
ret = -EIO;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
mutex_unlock(&ar->conf_mutex);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ath10k_wow_init(struct ath10k *ar)
|
||
|
|
{
|
||
|
|
if (!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
|
||
|
|
ar->running_fw->fw_file.fw_features))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (WARN_ON(!test_bit(WMI_SERVICE_WOW, ar->wmi.svc_map)))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
ar->wow.wowlan_support = ath10k_wowlan_support;
|
||
|
|
|
||
|
|
if (ar->wmi.rx_decap_mode == ATH10K_HW_TXRX_NATIVE_WIFI) {
|
||
|
|
ar->wow.wowlan_support.pattern_max_len -= WOW_MAX_REDUCE;
|
||
|
|
ar->wow.wowlan_support.max_pkt_offset -= WOW_MAX_REDUCE;
|
||
|
|
}
|
||
|
|
|
||
|
|
ar->wow.wowlan_support.n_patterns = ar->wow.max_num_patterns;
|
||
|
|
ar->hw->wiphy->wowlan = &ar->wow.wowlan_support;
|
||
|
|
|
||
|
|
device_set_wakeup_capable(ar->dev, true);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|