@@ -16,7 +16,8 @@ ath11k-y += core.o \
ce.o \
peer.o \
dbring.o \
- hw.o
+ hw.o \
+ wow.o
ath11k-$(CONFIG_ATH11K_DEBUGFS) += debugfs.o debugfs_htt_stats.o debugfs_sta.o
ath11k-$(CONFIG_NL80211_TESTMODE) += testmode.o
@@ -431,6 +431,10 @@ struct ath11k_vdev_stop_status {
u32 vdev_id;
};
+struct ath11k_wow {
+ struct completion wakeup_completed;
+};
+
struct ath11k {
struct ath11k_base *ab;
struct ath11k_pdev *pdev;
@@ -557,6 +561,7 @@ struct ath11k {
struct ath11k_thermal thermal;
struct completion target_suspend;
bool target_suspend_ack;
+ struct ath11k_wow wow;
};
struct ath11k_band_cap {
@@ -6408,6 +6408,7 @@ int ath11k_mac_allocate(struct ath11k_base *ab)
init_completion(&ar->scan.completed);
init_completion(&ar->thermal.wmi_sync);
init_completion(&ar->target_suspend);
+ init_completion(&ar->wow.wakeup_completed);
INIT_DELAYED_WORK(&ar->scan.timeout, ath11k_scan_timeout_work);
INIT_WORK(&ar->regd_update_work, ath11k_regd_update_work);
@@ -6456,6 +6456,58 @@ ath11k_wmi_pdev_temperature_event(struct ath11k_base *ab,
ath11k_thermal_event_temperature(ar, ev.temp);
}
+static int ath11k_wow_wakeup_host_parse(struct ath11k_base *ab,
+ u16 tag, u16 len,
+ const void *ptr, void *data)
+{
+ struct wmi_wow_ev_arg *ev = data;
+ const char *wow_pg_fault;
+ int wow_pg_len;
+
+ switch (tag) {
+ case WMI_TAG_WOW_EVENT_INFO:
+ memcpy(ev, ptr, sizeof(*ev));
+ ath11k_dbg(ab, ATH11K_DBG_WMI, "wow wakeup host reason %d %s\n",
+ ev->wake_reason, wow_reason(ev->wake_reason));
+ break;
+
+ case WMI_TAG_ARRAY_BYTE:
+ if (ev && ev->wake_reason == WOW_REASON_PAGE_FAULT) {
+ wow_pg_fault = ptr;
+ /* the first 4 bytes are length */
+ wow_pg_len = *(int *)wow_pg_fault;
+ wow_pg_fault += sizeof(int);
+ ath11k_dbg(ab, ATH11K_DBG_WMI, "wow data_len = %d\n",
+ wow_pg_len);
+ ath11k_dbg_dump(ab, ATH11K_DBG_WMI,
+ "wow_event_info_type packet present",
+ "wow_pg_fault ",
+ wow_pg_fault,
+ wow_pg_len);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static void
+ath11k_wmi_event_wow_wakeup_host(struct ath11k_base *ab, struct sk_buff *skb)
+{
+ struct wmi_wow_ev_arg ev = { };
+ int ret;
+
+ ret = ath11k_wmi_tlv_iter(ab, skb->data, skb->len,
+ ath11k_wow_wakeup_host_parse,
+ &ev);
+ if (ret)
+ ath11k_warn(ab, "failed to parse tlv %d\n", ret);
+
+ complete(&ab->pdevs[0].ar->wow.wakeup_completed);
+}
+
static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb)
{
struct wmi_cmd_hdr *cmd_hdr;
@@ -6555,6 +6607,9 @@ static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb)
case WMI_PDEV_DFS_RADAR_DETECTION_EVENTID:
ath11k_wmi_pdev_dfs_radar_detected_event(ab, skb);
break;
+ case WMI_WOW_WAKEUP_HOST_EVENTID:
+ ath11k_wmi_event_wow_wakeup_host(ab, skb);
+ break;
/* TODO: Add remaining events */
default:
ath11k_dbg(ab, ATH11K_DBG_WMI, "Unknown eventid: 0x%x\n", id);
@@ -6769,3 +6824,46 @@ void ath11k_wmi_detach(struct ath11k_base *ab)
ath11k_wmi_free_dbring_caps(ab);
}
+
+int ath11k_wmi_wow_host_wakeup_ind(struct ath11k *ar)
+{
+ struct wmi_wow_host_wakeup_ind *cmd;
+ struct sk_buff *skb;
+ size_t len;
+
+ len = sizeof(*cmd);
+ skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_wow_host_wakeup_ind *)skb->data;
+ cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG,
+ WMI_TAG_WOW_HOSTWAKEUP_FROM_SLEEP_CMD) |
+ FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+
+ ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "wmi tlv wow host wakeup ind\n");
+
+ return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID);
+}
+
+int ath11k_wmi_wow_enable(struct ath11k *ar)
+{
+ struct wmi_wow_enable_cmd *cmd;
+ struct sk_buff *skb;
+ int len;
+
+ len = sizeof(*cmd);
+ skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_wow_enable_cmd *)skb->data;
+ cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_WOW_ENABLE_CMD) |
+ FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+
+ cmd->enable = 1;
+ cmd->pause_iface_config = WOW_IFACE_PAUSE_ENABLED;
+ ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "wmi tlv wow enable\n");
+
+ return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_CMDID);
+}
@@ -5000,6 +5000,169 @@ struct ath11k_wmi_base {
struct ath11k_targ_cap *targ_cap;
};
+/* WOW structures */
+enum wmi_wow_wakeup_event {
+ WOW_BMISS_EVENT = 0,
+ WOW_BETTER_AP_EVENT,
+ WOW_DEAUTH_RECVD_EVENT,
+ WOW_MAGIC_PKT_RECVD_EVENT,
+ WOW_GTK_ERR_EVENT,
+ WOW_FOURWAY_HSHAKE_EVENT,
+ WOW_EAPOL_RECVD_EVENT,
+ WOW_NLO_DETECTED_EVENT,
+ WOW_DISASSOC_RECVD_EVENT,
+ WOW_PATTERN_MATCH_EVENT,
+ WOW_CSA_IE_EVENT,
+ WOW_PROBE_REQ_WPS_IE_EVENT,
+ WOW_AUTH_REQ_EVENT,
+ WOW_ASSOC_REQ_EVENT,
+ WOW_HTT_EVENT,
+ WOW_RA_MATCH_EVENT,
+ WOW_HOST_AUTO_SHUTDOWN_EVENT,
+ WOW_IOAC_MAGIC_EVENT,
+ WOW_IOAC_SHORT_EVENT,
+ WOW_IOAC_EXTEND_EVENT,
+ WOW_IOAC_TIMER_EVENT,
+ WOW_DFS_PHYERR_RADAR_EVENT,
+ WOW_BEACON_EVENT,
+ WOW_CLIENT_KICKOUT_EVENT,
+ WOW_EVENT_MAX,
+};
+
+enum wmi_wow_interface_cfg {
+ WOW_IFACE_PAUSE_ENABLED,
+ WOW_IFACE_PAUSE_DISABLED
+};
+
+#define C2S(x) case x: return #x
+
+static inline const char *wow_wakeup_event(enum wmi_wow_wakeup_event ev)
+{
+ switch (ev) {
+ C2S(WOW_BMISS_EVENT);
+ C2S(WOW_BETTER_AP_EVENT);
+ C2S(WOW_DEAUTH_RECVD_EVENT);
+ C2S(WOW_MAGIC_PKT_RECVD_EVENT);
+ C2S(WOW_GTK_ERR_EVENT);
+ C2S(WOW_FOURWAY_HSHAKE_EVENT);
+ C2S(WOW_EAPOL_RECVD_EVENT);
+ C2S(WOW_NLO_DETECTED_EVENT);
+ C2S(WOW_DISASSOC_RECVD_EVENT);
+ C2S(WOW_PATTERN_MATCH_EVENT);
+ C2S(WOW_CSA_IE_EVENT);
+ C2S(WOW_PROBE_REQ_WPS_IE_EVENT);
+ C2S(WOW_AUTH_REQ_EVENT);
+ C2S(WOW_ASSOC_REQ_EVENT);
+ C2S(WOW_HTT_EVENT);
+ C2S(WOW_RA_MATCH_EVENT);
+ C2S(WOW_HOST_AUTO_SHUTDOWN_EVENT);
+ C2S(WOW_IOAC_MAGIC_EVENT);
+ C2S(WOW_IOAC_SHORT_EVENT);
+ C2S(WOW_IOAC_EXTEND_EVENT);
+ C2S(WOW_IOAC_TIMER_EVENT);
+ C2S(WOW_DFS_PHYERR_RADAR_EVENT);
+ C2S(WOW_BEACON_EVENT);
+ C2S(WOW_CLIENT_KICKOUT_EVENT);
+ C2S(WOW_EVENT_MAX);
+ default:
+ return NULL;
+ }
+}
+
+enum wmi_wow_wake_reason {
+ WOW_REASON_UNSPECIFIED = -1,
+ WOW_REASON_NLOD = 0,
+ WOW_REASON_AP_ASSOC_LOST,
+ WOW_REASON_LOW_RSSI,
+ WOW_REASON_DEAUTH_RECVD,
+ WOW_REASON_DISASSOC_RECVD,
+ WOW_REASON_GTK_HS_ERR,
+ WOW_REASON_EAP_REQ,
+ WOW_REASON_FOURWAY_HS_RECV,
+ WOW_REASON_TIMER_INTR_RECV,
+ WOW_REASON_PATTERN_MATCH_FOUND,
+ WOW_REASON_RECV_MAGIC_PATTERN,
+ WOW_REASON_P2P_DISC,
+ WOW_REASON_WLAN_HB,
+ WOW_REASON_CSA_EVENT,
+ WOW_REASON_PROBE_REQ_WPS_IE_RECV,
+ WOW_REASON_AUTH_REQ_RECV,
+ WOW_REASON_ASSOC_REQ_RECV,
+ WOW_REASON_HTT_EVENT,
+ WOW_REASON_RA_MATCH,
+ WOW_REASON_HOST_AUTO_SHUTDOWN,
+ WOW_REASON_IOAC_MAGIC_EVENT,
+ WOW_REASON_IOAC_SHORT_EVENT,
+ WOW_REASON_IOAC_EXTEND_EVENT,
+ WOW_REASON_IOAC_TIMER_EVENT,
+ WOW_REASON_ROAM_HO,
+ WOW_REASON_DFS_PHYERR_RADADR_EVENT,
+ WOW_REASON_BEACON_RECV,
+ WOW_REASON_CLIENT_KICKOUT_EVENT,
+ WOW_REASON_PAGE_FAULT = 0x3a,
+ WOW_REASON_DEBUG_TEST = 0xFF,
+};
+
+static inline const char *wow_reason(enum wmi_wow_wake_reason reason)
+{
+ switch (reason) {
+ C2S(WOW_REASON_UNSPECIFIED);
+ C2S(WOW_REASON_NLOD);
+ C2S(WOW_REASON_AP_ASSOC_LOST);
+ C2S(WOW_REASON_LOW_RSSI);
+ C2S(WOW_REASON_DEAUTH_RECVD);
+ C2S(WOW_REASON_DISASSOC_RECVD);
+ C2S(WOW_REASON_GTK_HS_ERR);
+ C2S(WOW_REASON_EAP_REQ);
+ C2S(WOW_REASON_FOURWAY_HS_RECV);
+ C2S(WOW_REASON_TIMER_INTR_RECV);
+ C2S(WOW_REASON_PATTERN_MATCH_FOUND);
+ C2S(WOW_REASON_RECV_MAGIC_PATTERN);
+ C2S(WOW_REASON_P2P_DISC);
+ C2S(WOW_REASON_WLAN_HB);
+ C2S(WOW_REASON_CSA_EVENT);
+ C2S(WOW_REASON_PROBE_REQ_WPS_IE_RECV);
+ C2S(WOW_REASON_AUTH_REQ_RECV);
+ C2S(WOW_REASON_ASSOC_REQ_RECV);
+ C2S(WOW_REASON_HTT_EVENT);
+ C2S(WOW_REASON_RA_MATCH);
+ C2S(WOW_REASON_HOST_AUTO_SHUTDOWN);
+ C2S(WOW_REASON_IOAC_MAGIC_EVENT);
+ C2S(WOW_REASON_IOAC_SHORT_EVENT);
+ C2S(WOW_REASON_IOAC_EXTEND_EVENT);
+ C2S(WOW_REASON_IOAC_TIMER_EVENT);
+ C2S(WOW_REASON_ROAM_HO);
+ C2S(WOW_REASON_DFS_PHYERR_RADADR_EVENT);
+ C2S(WOW_REASON_BEACON_RECV);
+ C2S(WOW_REASON_CLIENT_KICKOUT_EVENT);
+ C2S(WOW_REASON_PAGE_FAULT);
+ C2S(WOW_REASON_DEBUG_TEST);
+ default:
+ return NULL;
+ }
+}
+
+#undef C2S
+
+struct wmi_wow_enable_cmd {
+ u32 tlv_header;
+ u32 enable;
+ u32 pause_iface_config;
+ u32 flags;
+} __packed;
+
+struct wmi_wow_host_wakeup_ind {
+ u32 tlv_header;
+ u32 reserved;
+} __packed;
+
+struct wmi_wow_ev_arg {
+ u32 vdev_id;
+ u32 flag;
+ enum wmi_wow_wake_reason wake_reason;
+ u32 data_len;
+};
+
int ath11k_wmi_cmd_send(struct ath11k_pdev_wmi *wmi, struct sk_buff *skb,
u32 cmd_id);
struct sk_buff *ath11k_wmi_alloc_skb(struct ath11k_wmi_base *wmi_sc, u32 len);
@@ -5122,4 +5285,6 @@ int ath11k_wmi_vdev_spectral_enable(struct ath11k *ar, u32 vdev_id,
int ath11k_wmi_vdev_spectral_conf(struct ath11k *ar,
struct ath11k_wmi_vdev_spectral_conf_param *param);
int ath11k_wmi_set_hw_mode(struct ath11k_base *ab, int hw_mode_index);
+int ath11k_wmi_wow_host_wakeup_ind(struct ath11k *ar);
+int ath11k_wmi_wow_enable(struct ath11k *ar);
#endif
new file mode 100644
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) 2020 The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/delay.h>
+
+#include "mac.h"
+#include "core.h"
+#include "hif.h"
+#include "debug.h"
+#include "wmi.h"
+#include "wow.h"
+
+int ath11k_wow_enable(struct ath11k *ar)
+{
+ int i, ret;
+
+ ar->target_suspend_ack = false;
+
+ for (i = 0; i < ATH11K_WOW_RETRY_NUM; i++) {
+ reinit_completion(&ar->target_suspend);
+ ret = ath11k_wmi_wow_enable(ar);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to issue wow enable: %d\n", ret);
+ return ret;
+ }
+
+ ret = wait_for_completion_timeout(&ar->target_suspend, 3 * HZ);
+ if (ret == 0) {
+ ath11k_warn(ar->ab,
+ "timed out while waiting for suspend completion\n");
+ return -ETIMEDOUT;
+ } else {
+ /* If suspend_nack is received, host will send
+ * wow_enable again after ATH11K_WOW_RETRY_WAIT_MS.
+ */
+ if (!ar->target_suspend_ack) {
+ ath11k_warn(ar->ab, "wow enbale get nack %d\n", i);
+ msleep(ATH11K_WOW_RETRY_WAIT_MS);
+ continue;
+ }
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int ath11k_wow_wakeup(struct ath11k *ar)
+{
+ int ret;
+
+ reinit_completion(&ar->wow.wakeup_completed);
+
+ ret = ath11k_wmi_wow_host_wakeup_ind(ar);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to send wow wakeup indication: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = wait_for_completion_timeout(&ar->wow.wakeup_completed, 3 * HZ);
+ if (ret == 0) {
+ ath11k_warn(ar->ab, "timed out while waiting for wow wakeup completion\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) 2020 The Linux Foundation. All rights reserved.
+ */
+
+#define ATH11K_WOW_RETRY_NUM 3
+#define ATH11K_WOW_RETRY_WAIT_MS 200
+
+int ath11k_wow_enable(struct ath11k *ar);
+int ath11k_wow_wakeup(struct ath11k *ar);