Implement basic WoW functionalities such as magic-packet, disconnect
and pattern. The logic is very similar to ath11k.
When WoW is configured, ath12k_core_suspend and ath12k_core_resume
are skipped (by checking ar->state) as we are not allowed to power
cycle firmware.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Signed-off-by: Baochen Qiang <quic_bqiang@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/core.c | 46 ++-
drivers/net/wireless/ath/ath12k/core.h | 5 +
drivers/net/wireless/ath/ath12k/htc.c | 6 +
drivers/net/wireless/ath/ath12k/mac.c | 14 +
drivers/net/wireless/ath/ath12k/wmi.c | 143 +++++++++
drivers/net/wireless/ath/ath12k/wmi.h | 63 ++++
drivers/net/wireless/ath/ath12k/wow.c | 416 +++++++++++++++++++++++++
drivers/net/wireless/ath/ath12k/wow.h | 32 ++
8 files changed, 717 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c
index 3b1ad175a36a..9a7a18825562 100644
--- a/drivers/net/wireless/ath/ath12k/core.c
+++ b/drivers/net/wireless/ath/ath12k/core.c
@@ -43,14 +43,38 @@ static int ath12k_core_rfkill_config(struct ath12k_base *ab)
return ret;
}
-int ath12k_core_suspend(struct ath12k_base *ab)
+/* Check if we need to continue with suspend/resume operation.
+ * Return:
+ * a negative value: error happens and don't continue.
+ * 0: no error but don't continue.
+ * positive value: no error and do continue.
+ */
+static int ath12k_core_continue_suspend_resume(struct ath12k_base *ab)
{
struct ath12k *ar;
- int ret, i;
if (!ab->hw_params->supports_suspend)
return -EOPNOTSUPP;
+ /* so far single_pdev_only chips have supports_suspend as true
+ * so pass 0 as a dummy pdev_id here.
+ */
+ ar = ab->pdevs[0].ar;
+ if (!ar || !ar->ah || ar->ah->state != ATH12K_HW_STATE_OFF)
+ return 0;
+
+ return 1;
+}
+
+int ath12k_core_suspend(struct ath12k_base *ab)
+{
+ struct ath12k *ar;
+ int ret, i;
+
+ ret = ath12k_core_continue_suspend_resume(ab);
+ if (ret <= 0)
+ return ret;
+
for (i = 0; i < ab->num_radios; i++) {
ar = ab->pdevs[i].ar;
if (!ar)
@@ -81,8 +105,11 @@ EXPORT_SYMBOL(ath12k_core_suspend);
int ath12k_core_suspend_late(struct ath12k_base *ab)
{
- if (!ab->hw_params->supports_suspend)
- return -EOPNOTSUPP;
+ int ret;
+
+ ret = ath12k_core_continue_suspend_resume(ab);
+ if (ret <= 0)
+ return ret;
ath12k_hif_irq_disable(ab);
ath12k_hif_ce_irq_disable(ab);
@@ -97,8 +124,9 @@ int ath12k_core_resume_early(struct ath12k_base *ab)
{
int ret;
- if (!ab->hw_params->supports_suspend)
- return -EOPNOTSUPP;
+ ret = ath12k_core_continue_suspend_resume(ab);
+ if (ret <= 0)
+ return ret;
reinit_completion(&ab->restart_completed);
ret = ath12k_hif_power_up(ab);
@@ -112,9 +140,11 @@ EXPORT_SYMBOL(ath12k_core_resume_early);
int ath12k_core_resume(struct ath12k_base *ab)
{
long time_left;
+ int ret;
- if (!ab->hw_params->supports_suspend)
- return -EOPNOTSUPP;
+ ret = ath12k_core_continue_suspend_resume(ab);
+ if (ret <= 0)
+ return ret;
time_left = wait_for_completion_timeout(&ab->restart_completed,
ATH12K_RESET_TIMEOUT_HZ);
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index d94d1527b276..40b4f9b4d570 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -27,6 +27,7 @@
#include "dbring.h"
#include "fw.h"
#include "acpi.h"
+#include "wow.h"
#define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
@@ -605,6 +606,9 @@ struct ath12k {
struct work_struct wmi_mgmt_tx_work;
struct sk_buff_head wmi_mgmt_tx_queue;
+ struct ath12k_wow wow;
+ struct completion target_suspend;
+ bool target_suspend_ack;
struct ath12k_per_peer_tx_stats peer_tx_stats;
struct list_head ppdu_stats_info;
u32 ppdu_stat_list_depth;
@@ -766,6 +770,7 @@ struct ath12k_base {
struct {
struct completion wakeup_completed;
+ u32 wmi_conf_rx_decap_mode;
} wow;
struct ath12k_ce ce;
diff --git a/drivers/net/wireless/ath/ath12k/htc.c b/drivers/net/wireless/ath/ath12k/htc.c
index 2f2230f565bb..d13616bf07f4 100644
--- a/drivers/net/wireless/ath/ath12k/htc.c
+++ b/drivers/net/wireless/ath/ath12k/htc.c
@@ -244,6 +244,11 @@ static void ath12k_htc_suspend_complete(struct ath12k_base *ab, bool ack)
complete(&ab->htc_suspend);
}
+static void ath12k_htc_wakeup_from_suspend(struct ath12k_base *ab)
+{
+ ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot wakeup from suspend is received\n");
+}
+
void ath12k_htc_rx_completion_handler(struct ath12k_base *ab,
struct sk_buff *skb)
{
@@ -349,6 +354,7 @@ void ath12k_htc_rx_completion_handler(struct ath12k_base *ab,
ath12k_htc_suspend_complete(ab, false);
break;
case ATH12K_HTC_MSG_WAKEUP_FROM_SUSPEND_ID:
+ ath12k_htc_wakeup_from_suspend(ab);
break;
default:
ath12k_warn(ab, "ignoring unsolicited htc ep0 event %u\n",
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 784964ae03ec..43ee52524b3d 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -15,6 +15,8 @@
#include "dp_rx.h"
#include "peer.h"
#include "debugfs.h"
+#include "hif.h"
+#include "wow.h"
#define CHAN2G(_channel, _freq, _flags) { \
.band = NL80211_BAND_2GHZ, \
@@ -8539,6 +8541,12 @@ static const struct ieee80211_ops ath12k_ops = {
.sta_statistics = ath12k_mac_op_sta_statistics,
.remain_on_channel = ath12k_mac_op_remain_on_channel,
.cancel_remain_on_channel = ath12k_mac_op_cancel_remain_on_channel,
+
+#ifdef CONFIG_PM
+ .suspend = ath12k_wow_op_suspend,
+ .resume = ath12k_wow_op_resume,
+ .set_wakeup = ath12k_wow_op_set_wakeup,
+#endif
};
static void ath12k_mac_update_ch_list(struct ath12k *ar,
@@ -9056,6 +9064,12 @@ static int ath12k_mac_hw_register(struct ath12k_hw *ah)
ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
}
+ ret = ath12k_wow_init(ar);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to init wow: %d\n", ret);
+ goto err_free_if_combs;
+ }
+
ret = ieee80211_register_hw(hw);
if (ret) {
ath12k_err(ab, "ieee80211 registration failed: %d\n", ret);
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 7142d71de5f0..7f3d4ce93cb4 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -3716,6 +3716,7 @@ int ath12k_wmi_cmd_init(struct ath12k_base *ab)
arg.res_cfg.is_reg_cc_ext_event_supported = true;
ab->hw_params->wmi_init(ab, &arg.res_cfg);
+ ab->wow.wmi_conf_rx_decap_mode = arg.res_cfg.rx_decap_mode;
arg.num_mem_chunks = wmi_ab->num_mem_chunks;
arg.hw_mode_id = wmi_ab->preferred_hw_mode;
@@ -7462,3 +7463,145 @@ int ath12k_wmi_wow_enable(struct ath12k *ar)
return ath12k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_CMDID);
}
+
+int ath12k_wmi_wow_add_wakeup_event(struct ath12k *ar, u32 vdev_id,
+ enum wmi_wow_wakeup_event event,
+ u32 enable)
+{
+ struct wmi_wow_add_del_event_cmd *cmd;
+ struct sk_buff *skb;
+ size_t len;
+
+ len = sizeof(*cmd);
+ skb = ath12k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_wow_add_del_event_cmd *)skb->data;
+ cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_WOW_ADD_DEL_EVT_CMD,
+ sizeof(*cmd));
+ cmd->vdev_id = cpu_to_le32(vdev_id);
+ cmd->is_add = cpu_to_le32(enable);
+ cmd->event_bitmap = cpu_to_le32((1 << event));
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "wmi tlv wow add wakeup event %s enable %d vdev_id %d\n",
+ wow_wakeup_event(event), enable, vdev_id);
+
+ return ath12k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID);
+}
+
+int ath12k_wmi_wow_add_pattern(struct ath12k *ar, u32 vdev_id, u32 pattern_id,
+ const u8 *pattern, const u8 *mask,
+ int pattern_len, int pattern_offset)
+{
+ struct wmi_wow_add_pattern_cmd *cmd;
+ struct wmi_wow_bitmap_pattern_params *bitmap;
+ struct wmi_tlv *tlv;
+ struct sk_buff *skb;
+ void *ptr;
+ size_t len;
+
+ len = sizeof(*cmd) +
+ sizeof(*tlv) + /* array struct */
+ sizeof(*bitmap) + /* bitmap */
+ sizeof(*tlv) + /* empty ipv4 sync */
+ sizeof(*tlv) + /* empty ipv6 sync */
+ sizeof(*tlv) + /* empty magic */
+ sizeof(*tlv) + /* empty info timeout */
+ sizeof(*tlv) + sizeof(u32); /* ratelimit interval */
+
+ skb = ath12k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
+ if (!skb)
+ return -ENOMEM;
+
+ /* cmd */
+ ptr = skb->data;
+ cmd = ptr;
+ cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_WOW_ADD_PATTERN_CMD,
+ sizeof(*cmd));
+ cmd->vdev_id = cpu_to_le32(vdev_id);
+ cmd->pattern_id = cpu_to_le32(pattern_id);
+ cmd->pattern_type = cpu_to_le32(WOW_BITMAP_PATTERN);
+
+ ptr += sizeof(*cmd);
+
+ /* bitmap */
+ tlv = ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT, sizeof(*bitmap));
+
+ ptr += sizeof(*tlv);
+
+ bitmap = ptr;
+ bitmap->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_WOW_BITMAP_PATTERN_T,
+ sizeof(*bitmap));
+ memcpy(bitmap->patternbuf, pattern, pattern_len);
+ memcpy(bitmap->bitmaskbuf, mask, pattern_len);
+ bitmap->pattern_offset = cpu_to_le32(pattern_offset);
+ bitmap->pattern_len = cpu_to_le32(pattern_len);
+ bitmap->bitmask_len = cpu_to_le32(pattern_len);
+ bitmap->pattern_id = cpu_to_le32(pattern_id);
+
+ ptr += sizeof(*bitmap);
+
+ /* ipv4 sync */
+ tlv = ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT, 0);
+
+ ptr += sizeof(*tlv);
+
+ /* ipv6 sync */
+ tlv = ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT, 0);
+
+ ptr += sizeof(*tlv);
+
+ /* magic */
+ tlv = ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT, 0);
+
+ ptr += sizeof(*tlv);
+
+ /* pattern info timeout */
+ tlv = ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_UINT32, 0);
+
+ ptr += sizeof(*tlv);
+
+ /* ratelimit interval */
+ tlv = ptr;
+ tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_UINT32, sizeof(u32));
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "wmi tlv wow add pattern vdev_id %d pattern_id %d pattern_offset %d pattern_len %d\n",
+ vdev_id, pattern_id, pattern_offset, pattern_len);
+
+ ath12k_dbg_dump(ar->ab, ATH12K_DBG_WMI, NULL, "wow pattern: ",
+ bitmap->patternbuf, pattern_len);
+ ath12k_dbg_dump(ar->ab, ATH12K_DBG_WMI, NULL, "wow bitmask: ",
+ bitmap->bitmaskbuf, pattern_len);
+
+ return ath12k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ADD_WAKE_PATTERN_CMDID);
+}
+
+int ath12k_wmi_wow_del_pattern(struct ath12k *ar, u32 vdev_id, u32 pattern_id)
+{
+ struct wmi_wow_del_pattern_cmd *cmd;
+ struct sk_buff *skb;
+ size_t len;
+
+ len = sizeof(*cmd);
+ skb = ath12k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_wow_del_pattern_cmd *)skb->data;
+ cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_WOW_DEL_PATTERN_CMD,
+ sizeof(*cmd));
+ cmd->vdev_id = cpu_to_le32(vdev_id);
+ cmd->pattern_id = cpu_to_le32(pattern_id);
+ cmd->pattern_type = cpu_to_le32(WOW_BITMAP_PATTERN);
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "wmi tlv wow del pattern vdev_id %d pattern_id %d\n",
+ vdev_id, pattern_id);
+
+ return ath12k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_DEL_WAKE_PATTERN_CMDID);
+}
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 9cee3a114645..6cb06f6f7df4 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -5046,6 +5046,62 @@ static inline const char *wow_reason(enum wmi_wow_wake_reason reason)
#undef C2S
+#define WOW_DEFAULT_BITMAP_PATTERN_SIZE 148
+#define WOW_DEFAULT_BITMASK_SIZE 148
+
+#define WOW_MIN_PATTERN_SIZE 1
+#define WOW_MAX_PATTERN_SIZE 148
+#define WOW_MAX_PKT_OFFSET 128
+#define WOW_HDR_LEN (sizeof(struct ieee80211_hdr_3addr) + \
+ sizeof(struct rfc1042_hdr))
+#define WOW_MAX_REDUCE (WOW_HDR_LEN - sizeof(struct ethhdr) - \
+ offsetof(struct ieee80211_hdr_3addr, addr1))
+
+struct wmi_wow_bitmap_pattern_params {
+ __le32 tlv_header;
+ u8 patternbuf[WOW_DEFAULT_BITMAP_PATTERN_SIZE];
+ u8 bitmaskbuf[WOW_DEFAULT_BITMASK_SIZE];
+ __le32 pattern_offset;
+ __le32 pattern_len;
+ __le32 bitmask_len;
+ __le32 pattern_id;
+} __packed;
+
+struct wmi_wow_add_pattern_cmd {
+ __le32 tlv_header;
+ __le32 vdev_id;
+ __le32 pattern_id;
+ __le32 pattern_type;
+} __packed;
+
+struct wmi_wow_del_pattern_cmd {
+ __le32 tlv_header;
+ __le32 vdev_id;
+ __le32 pattern_id;
+ __le32 pattern_type;
+} __packed;
+
+enum wmi_tlv_pattern_type {
+ WOW_PATTERN_MIN = 0,
+ WOW_BITMAP_PATTERN = WOW_PATTERN_MIN,
+ WOW_IPV4_SYNC_PATTERN,
+ WOW_IPV6_SYNC_PATTERN,
+ WOW_WILD_CARD_PATTERN,
+ WOW_TIMER_PATTERN,
+ WOW_MAGIC_PATTERN,
+ WOW_IPV6_RA_PATTERN,
+ WOW_IOAC_PKT_PATTERN,
+ WOW_IOAC_TMR_PATTERN,
+ WOW_PATTERN_MAX
+};
+
+struct wmi_wow_add_del_event_cmd {
+ __le32 tlv_header;
+ __le32 vdev_id;
+ __le32 is_add;
+ __le32 event_bitmap;
+} __packed;
+
struct wmi_wow_enable_cmd {
__le32 tlv_header;
__le32 enable;
@@ -5228,4 +5284,11 @@ ath12k_wmi_mac_phy_get_hw_link_id(const struct ath12k_wmi_mac_phy_caps_params *p
int ath12k_wmi_wow_host_wakeup_ind(struct ath12k *ar);
int ath12k_wmi_wow_enable(struct ath12k *ar);
+int ath12k_wmi_wow_del_pattern(struct ath12k *ar, u32 vdev_id, u32 pattern_id);
+int ath12k_wmi_wow_add_pattern(struct ath12k *ar, u32 vdev_id, u32 pattern_id,
+ const u8 *pattern, const u8 *mask,
+ int pattern_len, int pattern_offset);
+int ath12k_wmi_wow_add_wakeup_event(struct ath12k *ar, u32 vdev_id,
+ enum wmi_wow_wakeup_event event,
+ u32 enable);
#endif
diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c
index 98e36fc87fa6..2965c9ad2462 100644
--- a/drivers/net/wireless/ath/ath12k/wow.c
+++ b/drivers/net/wireless/ath/ath12k/wow.c
@@ -7,12 +7,22 @@
#include <linux/delay.h>
#include "mac.h"
+
+#include <net/mac80211.h>
#include "core.h"
#include "hif.h"
#include "debug.h"
#include "wmi.h"
#include "wow.h"
+static const struct wiphy_wowlan_support ath12k_wowlan_support = {
+ .flags = WIPHY_WOWLAN_DISCONNECT |
+ WIPHY_WOWLAN_MAGIC_PKT,
+ .pattern_min_len = WOW_MIN_PATTERN_SIZE,
+ .pattern_max_len = WOW_MAX_PATTERN_SIZE,
+ .max_pkt_offset = WOW_MAX_PKT_OFFSET,
+};
+
int ath12k_wow_enable(struct ath12k *ar)
{
struct ath12k_base *ab = ar->ab;
@@ -72,3 +82,409 @@ int ath12k_wow_wakeup(struct ath12k *ar)
return 0;
}
+
+static int ath12k_wow_vif_cleanup(struct ath12k_vif *arvif)
+{
+ struct ath12k *ar = arvif->ar;
+ int i, ret;
+
+ for (i = 0; i < WOW_EVENT_MAX; i++) {
+ ret = ath12k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 0);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to issue wow wakeup for event %s on vdev %i: %d\n",
+ wow_wakeup_event(i), arvif->vdev_id, ret);
+ return ret;
+ }
+ }
+
+ for (i = 0; i < ar->wow.max_num_patterns; i++) {
+ ret = ath12k_wmi_wow_del_pattern(ar, arvif->vdev_id, i);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to delete wow pattern %d for vdev %i: %d\n",
+ i, arvif->vdev_id, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int ath12k_wow_cleanup(struct ath12k *ar)
+{
+ struct ath12k_vif *arvif;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arvif, &ar->arvifs, list) {
+ ret = ath12k_wow_vif_cleanup(arvif);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to clean wow wakeups on vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+/* Convert a 802.3 format to a 802.11 format.
+ * +------------+-----------+--------+----------------+
+ * 802.3: |dest mac(6B)|src mac(6B)|type(2B)| body... |
+ * +------------+-----------+--------+----------------+
+ * |__ |_______ |____________ |________
+ * | | | |
+ * +--+------------+----+-----------+---------------+-----------+
+ * 802.11: |4B|dest mac(6B)| 6B |src mac(6B)| 8B |type(2B)| body... |
+ * +--+------------+----+-----------+---------------+-----------+
+ */
+static void
+ath12k_wow_convert_8023_to_80211(struct ath12k *ar,
+ const struct cfg80211_pkt_pattern *eth_pattern,
+ struct ath12k_pkt_pattern *i80211_pattern)
+{
+ size_t r1042_eth_ofs = offsetof(struct rfc1042_hdr, eth_type);
+ size_t a1_ofs = offsetof(struct ieee80211_hdr_3addr, addr1);
+ size_t a3_ofs = offsetof(struct ieee80211_hdr_3addr, addr3);
+ size_t i80211_hdr_len = sizeof(struct ieee80211_hdr_3addr);
+ size_t prot_ofs = offsetof(struct ethhdr, h_proto);
+ size_t src_ofs = offsetof(struct ethhdr, h_source);
+ u8 eth_bytemask[WOW_MAX_PATTERN_SIZE] = {};
+ const u8 *eth_pat = eth_pattern->pattern;
+ size_t eth_pat_len = eth_pattern->pattern_len;
+ size_t eth_pkt_ofs = eth_pattern->pkt_offset;
+ u8 *bytemask = i80211_pattern->bytemask;
+ u8 *pat = i80211_pattern->pattern;
+ size_t pat_len = 0;
+ size_t pkt_ofs = 0;
+ size_t delta;
+ int i;
+
+ /* convert bitmask to bytemask */
+ for (i = 0; i < eth_pat_len; i++)
+ if (eth_pattern->mask[i / 8] & BIT(i % 8))
+ eth_bytemask[i] = 0xff;
+
+ if (eth_pkt_ofs < ETH_ALEN) {
+ pkt_ofs = eth_pkt_ofs + a1_ofs;
+
+ if (eth_pkt_ofs + eth_pat_len < ETH_ALEN) {
+ memcpy(pat, eth_pat, eth_pat_len);
+ memcpy(bytemask, eth_bytemask, eth_pat_len);
+
+ pat_len = eth_pat_len;
+ } else if (eth_pkt_ofs + eth_pat_len < prot_ofs) {
+ memcpy(pat, eth_pat, ETH_ALEN - eth_pkt_ofs);
+ memcpy(bytemask, eth_bytemask, ETH_ALEN - eth_pkt_ofs);
+
+ delta = eth_pkt_ofs + eth_pat_len - src_ofs;
+ memcpy(pat + a3_ofs - pkt_ofs,
+ eth_pat + ETH_ALEN - eth_pkt_ofs,
+ delta);
+ memcpy(bytemask + a3_ofs - pkt_ofs,
+ eth_bytemask + ETH_ALEN - eth_pkt_ofs,
+ delta);
+
+ pat_len = a3_ofs - pkt_ofs + delta;
+ } else {
+ memcpy(pat, eth_pat, ETH_ALEN - eth_pkt_ofs);
+ memcpy(bytemask, eth_bytemask, ETH_ALEN - eth_pkt_ofs);
+
+ memcpy(pat + a3_ofs - pkt_ofs,
+ eth_pat + ETH_ALEN - eth_pkt_ofs,
+ ETH_ALEN);
+ memcpy(bytemask + a3_ofs - pkt_ofs,
+ eth_bytemask + ETH_ALEN - eth_pkt_ofs,
+ ETH_ALEN);
+
+ delta = eth_pkt_ofs + eth_pat_len - prot_ofs;
+ memcpy(pat + i80211_hdr_len + r1042_eth_ofs - pkt_ofs,
+ eth_pat + prot_ofs - eth_pkt_ofs,
+ delta);
+ memcpy(bytemask + i80211_hdr_len + r1042_eth_ofs - pkt_ofs,
+ eth_bytemask + prot_ofs - eth_pkt_ofs,
+ delta);
+
+ pat_len = i80211_hdr_len + r1042_eth_ofs - pkt_ofs + delta;
+ }
+ } else if (eth_pkt_ofs < prot_ofs) {
+ pkt_ofs = eth_pkt_ofs - ETH_ALEN + a3_ofs;
+
+ if (eth_pkt_ofs + eth_pat_len < prot_ofs) {
+ memcpy(pat, eth_pat, eth_pat_len);
+ memcpy(bytemask, eth_bytemask, eth_pat_len);
+
+ pat_len = eth_pat_len;
+ } else {
+ memcpy(pat, eth_pat, prot_ofs - eth_pkt_ofs);
+ memcpy(bytemask, eth_bytemask, prot_ofs - eth_pkt_ofs);
+
+ delta = eth_pkt_ofs + eth_pat_len - prot_ofs;
+ memcpy(pat + i80211_hdr_len + r1042_eth_ofs - pkt_ofs,
+ eth_pat + prot_ofs - eth_pkt_ofs,
+ delta);
+ memcpy(bytemask + i80211_hdr_len + r1042_eth_ofs - pkt_ofs,
+ eth_bytemask + prot_ofs - eth_pkt_ofs,
+ delta);
+
+ pat_len = i80211_hdr_len + r1042_eth_ofs - pkt_ofs + delta;
+ }
+ } else {
+ pkt_ofs = eth_pkt_ofs - prot_ofs + i80211_hdr_len + r1042_eth_ofs;
+
+ memcpy(pat, eth_pat, eth_pat_len);
+ memcpy(bytemask, eth_bytemask, eth_pat_len);
+
+ pat_len = eth_pat_len;
+ }
+
+ i80211_pattern->pattern_len = pat_len;
+ i80211_pattern->pkt_offset = pkt_ofs;
+}
+
+static int ath12k_vif_wow_set_wakeups(struct ath12k_vif *arvif,
+ struct cfg80211_wowlan *wowlan)
+{
+ const struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
+ struct ath12k *ar = arvif->ar;
+ unsigned long wow_mask = 0;
+ int pattern_id = 0;
+ int ret, i;
+
+ /* Setup requested WOW features */
+ switch (arvif->vdev_type) {
+ case WMI_VDEV_TYPE_IBSS:
+ __set_bit(WOW_BEACON_EVENT, &wow_mask);
+ fallthrough;
+ case WMI_VDEV_TYPE_AP:
+ __set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
+ __set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
+ __set_bit(WOW_PROBE_REQ_WPS_IE_EVENT, &wow_mask);
+ __set_bit(WOW_AUTH_REQ_EVENT, &wow_mask);
+ __set_bit(WOW_ASSOC_REQ_EVENT, &wow_mask);
+ __set_bit(WOW_HTT_EVENT, &wow_mask);
+ __set_bit(WOW_RA_MATCH_EVENT, &wow_mask);
+ break;
+ case WMI_VDEV_TYPE_STA:
+ if (wowlan->disconnect) {
+ __set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
+ __set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
+ __set_bit(WOW_BMISS_EVENT, &wow_mask);
+ __set_bit(WOW_CSA_IE_EVENT, &wow_mask);
+ }
+
+ if (wowlan->magic_pkt)
+ __set_bit(WOW_MAGIC_PKT_RECVD_EVENT, &wow_mask);
+ break;
+ default:
+ break;
+ }
+
+ for (i = 0; i < wowlan->n_patterns; i++) {
+ const struct cfg80211_pkt_pattern *eth_pattern = &patterns[i];
+ struct ath12k_pkt_pattern new_pattern = {};
+
+ if (WARN_ON(eth_pattern->pattern_len > WOW_MAX_PATTERN_SIZE))
+ return -EINVAL;
+
+ if (ar->ab->wow.wmi_conf_rx_decap_mode ==
+ ATH12K_HW_TXRX_NATIVE_WIFI) {
+ ath12k_wow_convert_8023_to_80211(ar, eth_pattern,
+ &new_pattern);
+
+ if (WARN_ON(new_pattern.pattern_len > WOW_MAX_PATTERN_SIZE))
+ return -EINVAL;
+ } else {
+ memcpy(new_pattern.pattern, eth_pattern->pattern,
+ eth_pattern->pattern_len);
+
+ /* convert bitmask to bytemask */
+ for (i = 0; i < eth_pattern->pattern_len; i++)
+ if (eth_pattern->mask[i / 8] & BIT(i % 8))
+ new_pattern.bytemask[i] = 0xff;
+
+ new_pattern.pattern_len = eth_pattern->pattern_len;
+ new_pattern.pkt_offset = eth_pattern->pkt_offset;
+ }
+
+ ret = ath12k_wmi_wow_add_pattern(ar, arvif->vdev_id,
+ pattern_id,
+ new_pattern.pattern,
+ new_pattern.bytemask,
+ new_pattern.pattern_len,
+ new_pattern.pkt_offset);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to add pattern %i to vdev %i: %d\n",
+ pattern_id,
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ pattern_id++;
+ __set_bit(WOW_PATTERN_MATCH_EVENT, &wow_mask);
+ }
+
+ for (i = 0; i < WOW_EVENT_MAX; i++) {
+ if (!test_bit(i, &wow_mask))
+ continue;
+ ret = ath12k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 1);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to enable wakeup event %s on vdev %i: %d\n",
+ wow_wakeup_event(i), arvif->vdev_id, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int ath12k_wow_set_wakeups(struct ath12k *ar,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct ath12k_vif *arvif;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arvif, &ar->arvifs, list) {
+ ret = ath12k_vif_wow_set_wakeups(arvif, wowlan);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to set wow wakeups on vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+int ath12k_wow_op_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
+ struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ret = ath12k_wow_cleanup(ar);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to clear wow wakeup events: %d\n",
+ ret);
+ goto exit;
+ }
+
+ ret = ath12k_wow_set_wakeups(ar, wowlan);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to set wow wakeup events: %d\n",
+ ret);
+ goto cleanup;
+ }
+
+ ret = ath12k_mac_wait_tx_complete(ar);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to wait tx complete: %d\n", ret);
+ goto cleanup;
+ }
+
+ ret = ath12k_wow_enable(ar);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to start wow: %d\n", ret);
+ goto cleanup;
+ }
+
+ ath12k_hif_irq_disable(ar->ab);
+ ath12k_hif_ce_irq_disable(ar->ab);
+
+ ret = ath12k_hif_suspend(ar->ab);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to suspend hif: %d\n", ret);
+ goto wakeup;
+ }
+
+ goto exit;
+
+wakeup:
+ ath12k_wow_wakeup(ar);
+
+cleanup:
+ ath12k_wow_cleanup(ar);
+
+exit:
+ mutex_unlock(&ar->conf_mutex);
+ return ret ? 1 : 0;
+}
+
+void ath12k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+ struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
+ struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
+
+ mutex_lock(&ar->conf_mutex);
+ device_set_wakeup_enable(ar->ab->dev, enabled);
+ mutex_unlock(&ar->conf_mutex);
+}
+
+int ath12k_wow_op_resume(struct ieee80211_hw *hw)
+{
+ struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
+ struct ath12k *ar = ath12k_ah_to_ar(ah, 0);
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ret = ath12k_hif_resume(ar->ab);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to resume hif: %d\n", ret);
+ goto exit;
+ }
+
+ ath12k_hif_ce_irq_enable(ar->ab);
+ ath12k_hif_irq_enable(ar->ab);
+
+ ret = ath12k_wow_wakeup(ar);
+ if (ret)
+ ath12k_warn(ar->ab, "failed to wakeup from wow: %d\n", ret);
+
+exit:
+ if (ret) {
+ switch (ah->state) {
+ case ATH12K_HW_STATE_ON:
+ ah->state = ATH12K_HW_STATE_RESTARTING;
+ ret = 1;
+ break;
+ case ATH12K_HW_STATE_OFF:
+ case ATH12K_HW_STATE_RESTARTING:
+ case ATH12K_HW_STATE_RESTARTED:
+ case ATH12K_HW_STATE_WEDGED:
+ ath12k_warn(ar->ab, "encountered unexpected device state %d on resume, cannot recover\n",
+ ah->state);
+ ret = -EIO;
+ break;
+ }
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+int ath12k_wow_init(struct ath12k *ar)
+{
+ if (WARN_ON(!test_bit(WMI_TLV_SERVICE_WOW, ar->wmi->wmi_ab->svc_map)))
+ return -EINVAL;
+
+ ar->wow.wowlan_support = ath12k_wowlan_support;
+
+ if (ar->ab->wow.wmi_conf_rx_decap_mode == ATH12K_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.max_num_patterns = ATH12K_WOW_PATTERNS;
+ ar->wow.wowlan_support.n_patterns = ar->wow.max_num_patterns;
+ ar->ah->hw->wiphy->wowlan = &ar->wow.wowlan_support;
+
+ device_set_wakeup_capable(ar->ab->dev, true);
+
+ return 0;
+}
diff --git a/drivers/net/wireless/ath/ath12k/wow.h b/drivers/net/wireless/ath/ath12k/wow.h
index 6817ceaa4cfe..af9be5fadcc3 100644
--- a/drivers/net/wireless/ath/ath12k/wow.h
+++ b/drivers/net/wireless/ath/ath12k/wow.h
@@ -9,14 +9,46 @@
#define ATH12K_WOW_RETRY_NUM 10
#define ATH12K_WOW_RETRY_WAIT_MS 200
+#define ATH12K_WOW_PATTERNS 22
+
+struct ath12k_wow {
+ u32 max_num_patterns;
+ struct completion wakeup_completed;
+ struct wiphy_wowlan_support wowlan_support;
+};
+
+struct ath12k_pkt_pattern {
+ u8 pattern[WOW_MAX_PATTERN_SIZE];
+ u8 bytemask[WOW_MAX_PATTERN_SIZE];
+ int pattern_len;
+ int pkt_offset;
+};
+
+struct rfc1042_hdr {
+ u8 llc_dsap;
+ u8 llc_ssap;
+ u8 llc_ctrl;
+ u8 snap_oui[3];
+ __be16 eth_type;
+} __packed;
#ifdef CONFIG_PM
+int ath12k_wow_init(struct ath12k *ar);
+int ath12k_wow_op_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan);
+int ath12k_wow_op_resume(struct ieee80211_hw *hw);
+void ath12k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled);
int ath12k_wow_enable(struct ath12k *ar);
int ath12k_wow_wakeup(struct ath12k *ar);
#else
+static inline int ath12k_wow_init(struct ath12k *ar)
+{
+ return 0;
+}
+
static inline int ath12k_wow_enable(struct ath12k *ar)
{
return 0;
--
2.25.1
