From patchwork Tue Jun 4 05:54:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baochen Qiang X-Patchwork-Id: 801592 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B9C49132135 for ; Tue, 4 Jun 2024 05:54:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717480469; cv=none; b=fxMSntqCFrK4vLkEboeGFQQeuVhX5yhFo2ChMejZo/FimxvHH8n0+LblsbpgaNedH6p5R41vX/AWupOB3HKG0mLGVfUZHUwFSgP0Toiu351SAVNefP2pBeh2mfrjqNVhgjuAVhMadrYaQqBJKlj1UHkosjcBv/aKQ605pPK6X94= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717480469; c=relaxed/simple; bh=3uSJLSAF4H9OyCXeiFBlje4H37VP0lwh1ptktXlLpZU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=gZ44Soxzg/KIz0ujD0zUMLMfxj7X3rCjkP6WxdOnEvq+MDV05l4Rhu7pMUwQeeQtNG2sVKig2yUg2lUqG3Pp7VrQuqD/N7sZJxLtX2FEr4QiECeY02SFll+0Wytowj4MWzkfl3Cz/rWv1XDiECd0fPUeQAOS4KVtFdIcAoARYw8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=EK5+xtit; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="EK5+xtit" Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4542jh3O017720; Tue, 4 Jun 2024 05:54:23 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 7KsFUGgrYyvqIW2FnV40r/3/m42qHt0XYYcBZdy/UzU=; b=EK5+xtitEG++cUeW tpxuSNxfhPcN0AsutGYq91uymjmDMkeMo+JhWPDAvy/yM3M6EhMtwK2pAx2w3Gds iLnVrkAqqW/3e7tMvQDCl6wy4TRfSHKlSBadt9jkWfHKLbNmFMefpDCrVor3T2wS D/VlW2Em+Qj7ia6GMmaohw2Xs7tI/WmozMrelHCRssG3woKEDcp0owRDqRjo4XuR GQ3+hDRqBM0FWP30xBLTsQWmxl4cdxUCfFc1v/eeYs9WkDnlSZ/Id/U06XfiD8Gm 1eJFZFVnsXDvr16msb1SxrOv0mqVb0U5UT01Xq0ErzAun399sKYImJqLRrsGanPV ufHa8Q== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3yfw59nmvj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 04 Jun 2024 05:54:23 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 4545sMb5018032 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 4 Jun 2024 05:54:22 GMT Received: from bqiang-SFF.qca.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 3 Jun 2024 22:54:20 -0700 From: Baochen Qiang To: CC: , Subject: [PATCH v4 2/8] wifi: ath12k: implement WoW enable and wakeup commands Date: Tue, 4 Jun 2024 13:54:01 +0800 Message-ID: <20240604055407.12506-3-quic_bqiang@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240604055407.12506-1-quic_bqiang@quicinc.com> References: <20240604055407.12506-1-quic_bqiang@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Te5G1uj-3CeRrLmoe4Dh7Ct3hDo4fTVf X-Proofpoint-ORIG-GUID: Te5G1uj-3CeRrLmoe4Dh7Ct3hDo4fTVf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-06-04_02,2024-05-30_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0 adultscore=0 clxscore=1015 mlxlogscore=999 bulkscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2406040046 Implement WoW enable and WoW wakeup commands which are needed for suspend/resume. 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 Acked-by: Jeff Johnson --- drivers/net/wireless/ath/ath12k/Makefile | 1 + drivers/net/wireless/ath/ath12k/core.c | 2 + drivers/net/wireless/ath/ath12k/core.h | 4 + drivers/net/wireless/ath/ath12k/wmi.c | 104 ++++++++++++++ drivers/net/wireless/ath/ath12k/wmi.h | 174 +++++++++++++++++++++++ drivers/net/wireless/ath/ath12k/wow.c | 74 ++++++++++ drivers/net/wireless/ath/ath12k/wow.h | 30 ++++ 7 files changed, 389 insertions(+) create mode 100644 drivers/net/wireless/ath/ath12k/wow.c create mode 100644 drivers/net/wireless/ath/ath12k/wow.h diff --git a/drivers/net/wireless/ath/ath12k/Makefile b/drivers/net/wireless/ath/ath12k/Makefile index d42480db7463..f0dcc933aa95 100644 --- a/drivers/net/wireless/ath/ath12k/Makefile +++ b/drivers/net/wireless/ath/ath12k/Makefile @@ -26,6 +26,7 @@ ath12k-y += core.o \ ath12k-$(CONFIG_ATH12K_DEBUGFS) += debugfs.o ath12k-$(CONFIG_ACPI) += acpi.o ath12k-$(CONFIG_ATH12K_TRACING) += trace.o +ath12k-$(CONFIG_PM) += wow.o # for tracing framework to find trace.h CFLAGS_trace.o := -I$(src) diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c index 4c3eab4686c2..27702bae642e 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -16,6 +16,7 @@ #include "hif.h" #include "fw.h" #include "debugfs.h" +#include "wow.h" unsigned int ath12k_debug_mask; module_param_named(debug_mask, ath12k_debug_mask, uint, 0644); @@ -1288,6 +1289,7 @@ struct ath12k_base *ath12k_core_alloc(struct device *dev, size_t priv_size, timer_setup(&ab->rx_replenish_retry, ath12k_ce_rx_replenish_retry, 0); init_completion(&ab->htc_suspend); init_completion(&ab->restart_completed); + init_completion(&ab->wow.wakeup_completed); ab->dev = dev; ab->hif.bus = bus; diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h index d03326a68a9f..656e61cef10a 100644 --- a/drivers/net/wireless/ath/ath12k/core.h +++ b/drivers/net/wireless/ath/ath12k/core.h @@ -766,6 +766,10 @@ struct ath12k_base { const struct ath12k_hif_ops *ops; } hif; + struct { + struct completion wakeup_completed; + } wow; + struct ath12k_ce ce; struct timer_list rx_replenish_retry; struct ath12k_hal hal; diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index d6e1d1398cdb..1a67f69529ea 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -7030,6 +7030,65 @@ static void ath12k_wmi_twt_disable_event(struct ath12k_base *ab, kfree(tb); } +static int ath12k_wmi_wow_wakeup_host_parse(struct ath12k_base *ab, + u16 tag, u16 len, + const void *ptr, void *data) +{ + const struct wmi_wow_ev_pg_fault_param *pf_param; + const struct wmi_wow_ev_param *param; + struct wmi_wow_ev_arg *arg = data; + int pf_len; + + switch (tag) { + case WMI_TAG_WOW_EVENT_INFO: + param = ptr; + arg->wake_reason = le32_to_cpu(param->wake_reason); + ath12k_dbg(ab, ATH12K_DBG_WMI, "wow wakeup host reason %d %s\n", + arg->wake_reason, wow_reason(arg->wake_reason)); + break; + + case WMI_TAG_ARRAY_BYTE: + if (arg && arg->wake_reason == WOW_REASON_PAGE_FAULT) { + pf_param = ptr; + pf_len = le32_to_cpu(pf_param->len); + if (pf_len > len - sizeof(pf_len) || + pf_len < 0) { + ath12k_warn(ab, "invalid page fault buffer len %d\n", + pf_len); + return -EINVAL; + } + ath12k_dbg(ab, ATH12K_DBG_WMI, "wow data_len = %d\n", + pf_len); + ath12k_dbg_dump(ab, ATH12K_DBG_WMI, + "wow_event_info_type packet present", + "wow_pg_fault ", + pf_param->data, + pf_len); + } + break; + default: + break; + } + + return 0; +} + +static void ath12k_wmi_event_wow_wakeup_host(struct ath12k_base *ab, struct sk_buff *skb) +{ + struct wmi_wow_ev_arg arg = { }; + int ret; + + ret = ath12k_wmi_tlv_iter(ab, skb->data, skb->len, + ath12k_wmi_wow_wakeup_host_parse, + &arg); + if (ret) { + ath12k_warn(ab, "failed to parse wmi wow tlv: %d\n", ret); + return; + } + + complete(&ab->wow.wakeup_completed); +} + static void ath12k_wmi_op_rx(struct ath12k_base *ab, struct sk_buff *skb) { struct wmi_cmd_hdr *cmd_hdr; @@ -7150,6 +7209,9 @@ static void ath12k_wmi_op_rx(struct ath12k_base *ab, struct sk_buff *skb) case WMI_DIAG_EVENTID: ath12k_wmi_diag_event(ab, skb); break; + case WMI_WOW_WAKEUP_HOST_EVENTID: + ath12k_wmi_event_wow_wakeup_host(ab, skb); + break; /* TODO: Add remaining events */ default: ath12k_dbg(ab, ATH12K_DBG_WMI, "Unknown eventid: 0x%x\n", id); @@ -7359,3 +7421,45 @@ void ath12k_wmi_detach(struct ath12k_base *ab) ath12k_wmi_free_dbring_caps(ab); } + +int ath12k_wmi_wow_host_wakeup_ind(struct ath12k *ar) +{ + struct wmi_wow_host_wakeup_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_host_wakeup_cmd *)skb->data; + cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_WOW_HOSTWAKEUP_FROM_SLEEP_CMD, + sizeof(*cmd)); + + ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "wmi tlv wow host wakeup ind\n"); + + return ath12k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID); +} + +int ath12k_wmi_wow_enable(struct ath12k *ar) +{ + struct wmi_wow_enable_cmd *cmd; + struct sk_buff *skb; + int len; + + len = sizeof(*cmd); + skb = ath12k_wmi_alloc_skb(ar->wmi->wmi_ab, len); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_wow_enable_cmd *)skb->data; + cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_WOW_ENABLE_CMD, + sizeof(*cmd)); + + cmd->enable = cpu_to_le32(1); + cmd->pause_iface_config = cpu_to_le32(WOW_IFACE_PAUSE_ENABLED); + ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "wmi tlv wow enable\n"); + + return ath12k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_CMDID); +} diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h index c2b86e187a03..9cee3a114645 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.h +++ b/drivers/net/wireless/ath/ath12k/wmi.h @@ -4902,6 +4902,178 @@ struct wmi_twt_disable_event { __le32 status; } __packed; +/* 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 { + __le32 tlv_header; + __le32 enable; + __le32 pause_iface_config; + __le32 flags; +} __packed; + +struct wmi_wow_host_wakeup_cmd { + __le32 tlv_header; + __le32 reserved; +} __packed; + +struct wmi_wow_ev_param { + __le32 vdev_id; + __le32 flag; + __le32 wake_reason; + __le32 data_len; +} __packed; + +struct wmi_wow_ev_pg_fault_param { + __le32 len; + u8 data[]; +} __packed; + +struct wmi_wow_ev_arg { + enum wmi_wow_wake_reason wake_reason; +}; + void ath12k_wmi_init_qcn9274(struct ath12k_base *ab, struct ath12k_wmi_resource_config_arg *config); void ath12k_wmi_init_wcn7850(struct ath12k_base *ab, @@ -5054,4 +5226,6 @@ ath12k_wmi_mac_phy_get_hw_link_id(const struct ath12k_wmi_mac_phy_caps_params *p WMI_CAPS_PARAMS_HW_LINK_ID); } +int ath12k_wmi_wow_host_wakeup_ind(struct ath12k *ar); +int ath12k_wmi_wow_enable(struct ath12k *ar); #endif diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c new file mode 100644 index 000000000000..98e36fc87fa6 --- /dev/null +++ b/drivers/net/wireless/ath/ath12k/wow.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2020 The Linux Foundation. All rights reserved. + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include + +#include "mac.h" +#include "core.h" +#include "hif.h" +#include "debug.h" +#include "wmi.h" +#include "wow.h" + +int ath12k_wow_enable(struct ath12k *ar) +{ + struct ath12k_base *ab = ar->ab; + int i, ret; + + clear_bit(ATH12K_FLAG_HTC_SUSPEND_COMPLETE, &ab->dev_flags); + + for (i = 0; i < ATH12K_WOW_RETRY_NUM; i++) { + reinit_completion(&ab->htc_suspend); + + ret = ath12k_wmi_wow_enable(ar); + if (ret) { + ath12k_warn(ab, "failed to issue wow enable: %d\n", ret); + return ret; + } + + ret = wait_for_completion_timeout(&ab->htc_suspend, 3 * HZ); + if (ret == 0) { + ath12k_warn(ab, + "timed out while waiting for htc suspend completion\n"); + return -ETIMEDOUT; + } + + if (test_bit(ATH12K_FLAG_HTC_SUSPEND_COMPLETE, &ab->dev_flags)) + /* success, suspend complete received */ + return 0; + + ath12k_warn(ab, "htc suspend not complete, retrying (try %d)\n", + i); + msleep(ATH12K_WOW_RETRY_WAIT_MS); + } + + ath12k_warn(ab, "htc suspend not complete, failing after %d tries\n", i); + + return -ETIMEDOUT; +} + +int ath12k_wow_wakeup(struct ath12k *ar) +{ + struct ath12k_base *ab = ar->ab; + int ret; + + reinit_completion(&ab->wow.wakeup_completed); + + ret = ath12k_wmi_wow_host_wakeup_ind(ar); + if (ret) { + ath12k_warn(ab, "failed to send wow wakeup indication: %d\n", + ret); + return ret; + } + + ret = wait_for_completion_timeout(&ab->wow.wakeup_completed, 3 * HZ); + if (ret == 0) { + ath12k_warn(ab, "timed out while waiting for wow wakeup completion\n"); + return -ETIMEDOUT; + } + + return 0; +} diff --git a/drivers/net/wireless/ath/ath12k/wow.h b/drivers/net/wireless/ath/ath12k/wow.h new file mode 100644 index 000000000000..6817ceaa4cfe --- /dev/null +++ b/drivers/net/wireless/ath/ath12k/wow.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: BSD-3-Clause-Clear */ +/* + * Copyright (c) 2020 The Linux Foundation. All rights reserved. + * Copyright (c) 2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef ATH12K_WOW_H +#define ATH12K_WOW_H + +#define ATH12K_WOW_RETRY_NUM 10 +#define ATH12K_WOW_RETRY_WAIT_MS 200 + +#ifdef CONFIG_PM + +int ath12k_wow_enable(struct ath12k *ar); +int ath12k_wow_wakeup(struct ath12k *ar); + +#else + +static inline int ath12k_wow_enable(struct ath12k *ar) +{ + return 0; +} + +static inline int ath12k_wow_wakeup(struct ath12k *ar) +{ + return 0; +} +#endif /* CONFIG_PM */ +#endif /* ATH12K_WOW_H */