xref: /wlan-driver/qcacld-3.0/core/hdd/src/wlan_hdd_tsf.c (revision 5113495b16420b49004c444715d2daae2066e7dc)

/*
 * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
 * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
 *
 * Permission to use, copy, modify, and/or distribute this software for
 * any purpose with or without fee is hereby granted, provided that the
 * above copyright notice and this permission notice appear in all
 * copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/**
 * DOC: wlan_hdd_tsf.c - WLAN Host Device Driver tsf related implementation
 */

#include "osif_sync.h"
#include "wlan_hdd_main.h"
#include "wlan_hdd_tsf.h"
#include "wma_api.h"
#include "wlan_fwol_ucfg_api.h"
#include <qca_vendor.h>
#include <linux/errqueue.h>
#if defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_IRQ) || \
	defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC) || \
	defined(WLAN_FEATURE_TSF_ACCURACY)
#include <linux/gpio.h>
#endif

#include "ol_txrx_api.h"
#ifdef WLAN_FEATURE_TSF_AUTO_REPORT
#include <cdp_txrx_ctrl.h>
#endif

#ifdef WLAN_FEATURE_TSF_PLUS
#if !defined(WLAN_FEATURE_TSF_PLUS_NOIRQ) && \
	!defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC) && \
	!defined(WLAN_FEATURE_TSF_TIMER_SYNC)
static int tsf_gpio_irq_num = -1;
#endif
#endif
static qdf_event_t tsf_sync_get_completion_evt;
#define WLAN_TSF_SYNC_GET_TIMEOUT 2000
#define WLAN_HDD_CAPTURE_TSF_REQ_TIMEOUT_MS 500
#define WLAN_HDD_CAPTURE_TSF_INIT_INTERVAL_MS 100
#ifdef WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC
#define WLAN_HDD_SOFTAP_INTERVAL_TIMES 1
#else
#define WLAN_HDD_SOFTAP_INTERVAL_TIMES 100
#endif
#define OUTPUT_HIGH 1
#define OUTPUT_LOW 0

#ifdef WLAN_FEATURE_TSF_PLUS
#if defined(WLAN_FEATURE_TSF_PLUS_NOIRQ) || \
	defined(WLAN_FEATURE_TSF_TIMER_SYNC)
static void hdd_update_timestamp(struct hdd_adapter *adapter);
#else
static void
hdd_update_timestamp(struct hdd_adapter *adapter,
		     uint64_t target_time, uint64_t host_time);
#endif
#endif

#ifdef QCA_GET_TSF_VIA_REG
static inline void hdd_update_tsf(struct hdd_adapter *adapter, uint64_t tsf);

/**
 * struct hdd_tsf_report - TSF report filled in by DP layer
 * @vdev_id: vdev id for which TSF values is to be read
 * @tsf_id: tsf if used to read TSF report
 * @mac_id: lmac_id for which TSF values are read
 * @tsf: 64 bit tsf value as read from scratch registers
 * @tsf_sync_soc_time: host qtimer time when scratch registers are read
 *
 * The structure is used by the upper layers to pass vdev_id, tsf_id and mac_id
 * information to DP layer and get tsf time and host time when TSF was read.
 */
struct hdd_tsf_report {
	uint32_t vdev_id;
	uint32_t tsf_id;
	uint32_t mac_id;
	uint64_t tsf;
	uint64_t tsf_sync_soc_time;
};
#endif

/**
 * enum hdd_tsf_op_result - result of tsf operation
 * @HDD_TSF_OP_SUCC:  succeed
 * @HDD_TSF_OP_FAIL:  fail
 */
enum hdd_tsf_op_result {
	HDD_TSF_OP_SUCC,
	HDD_TSF_OP_FAIL
};

#ifdef WLAN_FEATURE_TSF_PLUS
#ifdef WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC
#define WLAN_HDD_CAPTURE_TSF_RESYNC_INTERVAL 1
#else
#define WLAN_HDD_CAPTURE_TSF_RESYNC_INTERVAL 9
#endif
static inline void hdd_set_th_sync_status(struct hdd_adapter *adapter,
					  bool initialized)
{
	qdf_atomic_set(&adapter->tsf.tsf_sync_ready_flag,
		       (initialized ? 1 : 0));
}

static inline bool hdd_get_th_sync_status(struct hdd_adapter *adapter)
{
	return qdf_atomic_read(&adapter->tsf.tsf_sync_ready_flag) != 0;
}

#else
static inline bool hdd_get_th_sync_status(struct hdd_adapter *adapter)
{
	return true;
}
#endif

static
enum hdd_tsf_get_state hdd_tsf_check_conn_state(struct hdd_adapter *adapter)
{
	enum QDF_OPMODE mode;
	enum hdd_tsf_get_state ret = TSF_RETURN;

	mode = adapter->device_mode;

	if (!test_bit(SOFTAP_BSS_STARTED, &adapter->deflink->link_flags) &&
	    (mode == QDF_SAP_MODE || mode == QDF_P2P_GO_MODE)) {
		hdd_err("Soft AP / P2p GO not beaconing");
		ret = TSF_SAP_NOT_STARTED_NO_TSF;
	} else if (!hdd_cm_is_vdev_associated(adapter->deflink) &&
		   (mode == QDF_STA_MODE || mode == QDF_P2P_CLIENT_MODE)) {
		hdd_err("failed to cap tsf, not connect with ap");
		ret = TSF_STA_NOT_CONNECTED_NO_TSF;
	}

	return ret;
}

static bool hdd_tsf_is_initialized(struct hdd_adapter *adapter)
{
	struct hdd_context *hddctx;

	if (!adapter) {
		hdd_err("invalid adapter");
		return false;
	}

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return false;
	}

	if (!qdf_atomic_read(&hddctx->tsf.tsf_ready_flag) ||
	    !hdd_get_th_sync_status(adapter)) {
		hdd_err("TSF is not initialized");
		return false;
	}

	return true;
}

#if (defined(WLAN_FEATURE_TSF_PLUS_NOIRQ) && \
	defined(WLAN_FEATURE_TSF_PLUS)) || \
	defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC) || \
	defined(WLAN_FEATURE_TSF_TIMER_SYNC)
/**
 * hdd_tsf_reset_gpio() - Reset TSF GPIO used for host timer sync
 * @adapter: pointer to adapter
 *
 * This function send WMI command to reset GPIO configured in FW after
 * TSF get operation.
 *
 * Return: TSF_RETURN on Success, TSF_RESET_GPIO_FAIL on failure
 */
static int hdd_tsf_reset_gpio(struct hdd_adapter *adapter)
{
	/* No GPIO Host timer sync for integrated WIFI Device */
	return TSF_RETURN;
}

/**
 * hdd_tsf_set_gpio() - Set TSF GPIO used for host timer sync
 * @hdd_ctx: pointer to hdd context
 *
 * This function is a dummy function for adrastea arch
 *
 * Return: QDF_STATUS_SUCCESS on Success
 */

static QDF_STATUS hdd_tsf_set_gpio(struct hdd_context *hdd_ctx)
{
	return QDF_STATUS_SUCCESS;
}
#else
static int hdd_tsf_reset_gpio(struct hdd_adapter *adapter)
{
	int ret;

	ret = wma_cli_set_command((int)adapter->deflink->vdev_id,
				  (int)GEN_PARAM_RESET_TSF_GPIO,
				  adapter->deflink->vdev_id,
				  GEN_CMD);

	if (ret != 0) {
		hdd_err("tsf reset GPIO fail ");
		ret = TSF_RESET_GPIO_FAIL;
	} else {
		ret = TSF_RETURN;
	}
	return ret;
}

/**
 * hdd_tsf_set_gpio() - Set TSF GPIO used for host timer sync
 * @hdd_ctx: pointer to hdd context
 *
 * This function check GPIO and set GPIO as IRQ to FW side on
 * none Adrastea arch
 *
 * Return: QDF_STATUS_SUCCESS on Success, others on Failure.
 */
static QDF_STATUS hdd_tsf_set_gpio(struct hdd_context *hdd_ctx)
{
	QDF_STATUS status;
	uint32_t tsf_gpio_pin = TSF_GPIO_PIN_INVALID;

	status = ucfg_fwol_get_tsf_gpio_pin(hdd_ctx->psoc, &tsf_gpio_pin);
	if (QDF_IS_STATUS_ERROR(status))
		return QDF_STATUS_E_INVAL;

	if (tsf_gpio_pin == TSF_GPIO_PIN_INVALID)
		return QDF_STATUS_E_INVAL;

	status = sme_set_tsf_gpio(hdd_ctx->mac_handle,
				  tsf_gpio_pin);

	return status;
}
#endif

#ifdef WLAN_FEATURE_TSF_PLUS
static bool hdd_tsf_is_ptp_enabled(struct hdd_context *hdd)
{
	uint32_t tsf_ptp_options;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd->psoc, &tsf_ptp_options)))
		return !!tsf_ptp_options;
	else
		return false;
}

bool hdd_tsf_is_tx_set(struct hdd_context *hdd)
{
	uint32_t tsf_ptp_options;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd->psoc, &tsf_ptp_options)))
		return tsf_ptp_options & CFG_SET_TSF_PTP_OPT_TX;
	else
		return false;
}

bool hdd_tsf_is_rx_set(struct hdd_context *hdd)
{
	uint32_t tsf_ptp_options;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd->psoc, &tsf_ptp_options)))
		return tsf_ptp_options & CFG_SET_TSF_PTP_OPT_RX;
	else
		return false;
}

bool hdd_tsf_is_raw_set(struct hdd_context *hdd)
{
	uint32_t tsf_ptp_options;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd->psoc, &tsf_ptp_options)))
		return tsf_ptp_options & CFG_SET_TSF_PTP_OPT_RAW;
	else
		return false;
}

bool hdd_tsf_is_dbg_fs_set(struct hdd_context *hdd)
{
	uint32_t tsf_ptp_options;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd->psoc, &tsf_ptp_options)))
		return tsf_ptp_options & CFG_SET_TSF_DBG_FS;
	else
		return false;
}

bool hdd_tsf_is_tsf64_tx_set(struct hdd_context *hdd)
{
	uint32_t tsf_ptp_options;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd->psoc, &tsf_ptp_options)))
		return tsf_ptp_options & CFG_SET_TSF_PTP_OPT_TSF64_TX;
	else
		return false;
}

bool hdd_tsf_is_time_sync_enabled_cfg(struct hdd_context *hdd_ctx)
{
	uint32_t tsf_ptp_options;

	if (hdd_ctx && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_ptp_options(hdd_ctx->psoc, &tsf_ptp_options)))
		return tsf_ptp_options & CFG_SET_TSF_PTP_SYNC_PERIOD;
	else
		return false;
}

static bool hdd_is_tsf_sync_enabled(struct hdd_context *hdd)
{
	bool is_tsf_sync_enable;

	if (hdd && QDF_IS_STATUS_SUCCESS(
	    ucfg_fwol_get_tsf_sync_enable(hdd->psoc, &is_tsf_sync_enable)))
		return is_tsf_sync_enable;
	else
		return false;
}

void hdd_update_dynamic_tsf_sync(struct hdd_adapter *adapter)
{
	adapter->tsf.enable_dynamic_tsf_sync =
			hdd_is_tsf_sync_enabled(adapter->hdd_ctx);
}
#else

static bool hdd_tsf_is_ptp_enabled(struct hdd_context *hdd)
{
	return false;
}
#endif

#ifdef WLAN_FEATURE_TSF_PLUS
static inline
uint64_t hdd_get_monotonic_host_time(struct hdd_context *hdd_ctx)
{
	return hdd_tsf_is_raw_set(hdd_ctx) ?
		ktime_get_ns() : ktime_get_real_ns();
}
#endif

#if defined(WLAN_FEATURE_TSF_PLUS) && \
	defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC)
#define MAX_CONTINUOUS_RETRY_CNT 10
static uint32_t
hdd_wlan_retry_tsf_cap(struct hdd_adapter *adapter)
{
	struct hdd_context *hddctx;
	int count = adapter->tsf.continuous_cap_retry_count;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (count == MAX_CONTINUOUS_RETRY_CNT) {
		hdd_debug("Max retry count reached");
		return 0;
	}
	qdf_atomic_set(&hddctx->tsf.cap_tsf_flag, 0);
	count++;
	adapter->tsf.continuous_cap_retry_count = count;
	return (count * WLAN_HDD_CAPTURE_TSF_REQ_TIMEOUT_MS);
}

static void
hdd_wlan_restart_tsf_cap(struct hdd_adapter *adapter)
{
	struct hdd_context *hddctx;
	int count = adapter->tsf.continuous_cap_retry_count;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (count == MAX_CONTINUOUS_RETRY_CNT) {
		hdd_debug("Restart TSF CAP");
		qdf_atomic_set(&hddctx->tsf.cap_tsf_flag, 0);
		adapter->tsf.continuous_cap_retry_count = 0;
		qdf_mc_timer_start(&adapter->tsf.host_target_sync_timer,
				   WLAN_HDD_CAPTURE_TSF_INIT_INTERVAL_MS);
	}
}

static void
hdd_update_host_time(struct hdd_adapter *adapter)
{
	struct hdd_context *hdd_ctx;
	u64 host_time;
	char *name = NULL;

	hdd_ctx = adapter->hdd_ctx;

	if (!hdd_tsf_is_initialized(adapter)) {
		hdd_err("tsf is not init, exit");
		return;
	}

	host_time = hdd_get_monotonic_host_time(hdd_ctx);
	hdd_update_timestamp(adapter, 0, host_time);
	name = adapter->dev->name;

	hdd_debug("iface: %s - host_time: %llu",
		  (!name ? "none" : name), host_time);
}

static
void hdd_tsf_ext_gpio_sync_work(void *data)
{
	QDF_STATUS status;
	struct hdd_adapter *adapter;
	struct hdd_context *hdd_ctx;
	uint32_t tsf_sync_gpio_pin = TSF_GPIO_PIN_INVALID;

	adapter = data;
	hdd_ctx = adapter->hdd_ctx;
	status = ucfg_fwol_get_tsf_sync_host_gpio_pin(hdd_ctx->psoc,
						      &tsf_sync_gpio_pin);
	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err("tsf sync gpio host pin error");
		return;
	}
	gpio_set_value(tsf_sync_gpio_pin, OUTPUT_HIGH);
	hdd_update_host_time(adapter);
	usleep_range(50, 100);
	gpio_set_value(tsf_sync_gpio_pin, OUTPUT_LOW);

	status = wma_cli_set_command((int)adapter->deflink->vdev_id,
				     (int)GEN_PARAM_CAPTURE_TSF,
				     adapter->deflink->vdev_id, GEN_CMD);
	if (status != QDF_STATUS_SUCCESS) {
		hdd_err("cap tsf fail");
		qdf_mc_timer_stop(&adapter->tsf.host_capture_req_timer);
	}
}

static void
hdd_tsf_gpio_sync_work_init(struct hdd_adapter *adapter)
{
	qdf_create_work(0, &adapter->tsf.gpio_tsf_sync_work,
			hdd_tsf_ext_gpio_sync_work, adapter);
}

static void
hdd_tsf_gpio_sync_work_deinit(struct hdd_adapter *adapter)
{
	qdf_destroy_work(0, &adapter->tsf.gpio_tsf_sync_work);
}

static void
hdd_tsf_stop_ext_gpio_sync(struct hdd_adapter *adapter)
{
	qdf_cancel_work(&adapter->tsf.gpio_tsf_sync_work);
}

static void
hdd_tsf_start_ext_gpio_sync(struct hdd_adapter *adapter)
{
	qdf_sched_work(0, &adapter->tsf.gpio_tsf_sync_work);
}

static bool hdd_tsf_cap_sync_send(struct hdd_adapter *adapter)
{
	hdd_tsf_start_ext_gpio_sync(adapter);
	return true;
}
#elif defined(WLAN_FEATURE_TSF_PLUS) && \
	!defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC)
static void
hdd_wlan_restart_tsf_cap(struct hdd_adapter *adapter)
{
}

static void
hdd_tsf_gpio_sync_work_init(struct hdd_adapter *adapter)
{
}

static void
hdd_tsf_gpio_sync_work_deinit(struct hdd_adapter *adapter)
{
}

static void
hdd_tsf_stop_ext_gpio_sync(struct hdd_adapter *adapter)
{
}

static void
hdd_tsf_start_ext_gpio_sync(struct hdd_adapter *adapter)
{
}

static bool
hdd_tsf_cap_sync_send(struct hdd_adapter *adapter)
{
	hdd_tsf_start_ext_gpio_sync(adapter);
	return false;
}

#else
static bool hdd_tsf_cap_sync_send(struct hdd_adapter *adapter)
{
	return false;
}
#endif

#ifdef WLAN_FEATURE_TSF_TIMER_SYNC
/**
 * hdd_convert_qtime_to_us() - convert qtime to us
 * @time: QTIMER ticks for adrastea and us for Lithium
 *
 * This function converts qtime to us.
 *
 * Return: Time in microseconds
 */
static inline uint64_t
hdd_convert_qtime_to_us(uint64_t time)
{
	return time;
}

#else
static inline uint64_t
hdd_convert_qtime_to_us(uint64_t time)
{
	return qdf_log_timestamp_to_usecs(time);
}
#endif

/**
 * hdd_capture_tsf_internal_via_wmi() - convert qtime to us
 * @adapter: pointer to adapter
 * @buf: in case of failure update with fail
 * @len: buffer length
 *
 * Return: result of tsf operation
 */
static enum hdd_tsf_op_result
hdd_capture_tsf_internal_via_wmi(struct hdd_adapter *adapter, uint32_t *buf,
				 int len)
{
	int ret;
	struct hdd_context *hddctx = adapter->hdd_ctx;

	ret = wma_cli_set_command((int)adapter->deflink->vdev_id,
				  (int)GEN_PARAM_CAPTURE_TSF,
				  adapter->deflink->vdev_id, GEN_CMD);
	if (ret != QDF_STATUS_SUCCESS) {
		hdd_err("cap tsf fail");
		buf[0] = TSF_CAPTURE_FAIL;
		hddctx->tsf.cap_tsf_context = NULL;
		qdf_atomic_set(&hddctx->tsf.cap_tsf_flag, 0);
		qdf_mc_timer_stop(&adapter->tsf.host_capture_req_timer);
	}
	return HDD_TSF_OP_SUCC;
}

#ifndef QCA_GET_TSF_VIA_REG
static inline
enum hdd_tsf_op_result _hdd_capture_tsf_internal(struct hdd_adapter *adapter,
						 uint32_t *buf, int len)
{
	return hdd_capture_tsf_internal_via_wmi(adapter, buf, len);
}

static inline void wlan_hdd_tsf_reg_update_details(struct hdd_adapter *adapter,
						   struct stsf *ptsf)
{
}
#else

static inline int hdd_tsf_reg_is_details_valid(struct hdd_adapter *adapter)
{
	return qdf_atomic_read(&adapter->tsf.tsf_details_valid);
}

static inline void
wlan_hdd_tsf_reg_update_details(struct hdd_adapter *adapter, struct stsf *ptsf)
{
	if (ptsf->tsf_id_valid) {
		adapter->tsf.tsf_id = ptsf->tsf_id;
		adapter->tsf.tsf_mac_id = ptsf->mac_id;
		qdf_atomic_set(&adapter->tsf.tsf_details_valid, 1);
	}
	hdd_debug("vdev_id %u tsf_id %u tsf_id_valid %u mac_id %u",
		  adapter->deflink->vdev_id, ptsf->tsf_id, ptsf->tsf_id_valid,
		  ptsf->mac_id);
}

static inline
QDF_STATUS wlan_hdd_tsf_reg_get(struct hdd_adapter *adapter,
				struct hdd_tsf_report *tsf_report)
{
	ol_txrx_soc_handle soc = cds_get_context(QDF_MODULE_ID_SOC);
	uint64_t tsf_time = 0;
	uint64_t tsf_sync_soc_time = 0;

	if (qdf_unlikely(!soc))
		return QDF_STATUS_E_INVAL;

	cdp_get_tsf_time(soc, tsf_report->tsf_id, tsf_report->mac_id,
			 &tsf_time, &tsf_sync_soc_time);

	/* fill in the report */
	tsf_report->tsf = tsf_time;
	tsf_report->tsf_sync_soc_time = tsf_sync_soc_time;
	return QDF_STATUS_SUCCESS;
}

/**
 * wlan_hdd_tsf_reg_process_report() - Process tsf report
 * @adapter: pointer to the adapter
 * @tsf_report: pointer to tsf report
 *
 * This function process the tsf report received and update tsf
 * value received via scratch register read to adapter
 *
 * Return: 0 for success or 1 in case of failure
 */
static enum hdd_tsf_op_result
wlan_hdd_tsf_reg_process_report(struct hdd_adapter *adapter,
				struct hdd_tsf_report *tsf_report)
{
	struct hdd_vdev_tsf *tsf;
	QDF_TIMER_STATE capture_req_timer_status;
	qdf_mc_timer_t *capture_timer;

	if (!tsf_report->tsf && !tsf_report->tsf_sync_soc_time) {
		hdd_err("Invalid TSF report");
		return HDD_TSF_OP_FAIL;
	}

	if (!hdd_tsf_is_initialized(adapter)) {
		hdd_err("tsf is not init, ignore tsf event");
		return HDD_TSF_OP_FAIL;
	}

	hdd_debug("device_mode is %d", adapter->device_mode);

	tsf = &adapter->tsf;
	capture_timer = &tsf->host_capture_req_timer;
	capture_req_timer_status =
		qdf_mc_timer_get_current_state(capture_timer);
	if (capture_req_timer_status == QDF_TIMER_STATE_UNUSED) {
		hdd_warn("invalid timer status");
		return HDD_TSF_OP_FAIL;
	}

	qdf_mc_timer_stop(capture_timer);
	tsf->cur_target_time = tsf_report->tsf;
	tsf->cur_tsf_sync_soc_time = tsf_report->tsf_sync_soc_time *
						NSEC_PER_USEC;

	qdf_event_set(&tsf_sync_get_completion_evt);
	hdd_update_tsf(adapter, tsf->cur_target_time);
	hdd_debug("vdev id=%u, tsf=%llu", adapter->deflink->vdev_id,
		  tsf_report->tsf);
	return HDD_TSF_OP_SUCC;
}

static enum hdd_tsf_op_result
hdd_capture_tsf_internal_via_reg(struct hdd_adapter *adapter, uint32_t *buf,
				 int len)
{
	struct hdd_tsf_report tsf_report;

	if (!hdd_tsf_reg_is_details_valid(adapter)) {
		hdd_warn("TSF reg details are not valid!");
		return HDD_TSF_OP_FAIL;
	}

	qdf_mem_zero(&tsf_report, sizeof(tsf_report));
	tsf_report.vdev_id = adapter->deflink->vdev_id;
	tsf_report.tsf_id = adapter->tsf.tsf_id;
	tsf_report.mac_id = adapter->tsf.tsf_mac_id;

	if (wlan_hdd_tsf_reg_get(adapter, &tsf_report)) {
		hdd_warn("Unable to get tsf report");
		return HDD_TSF_OP_FAIL;
	}

	return wlan_hdd_tsf_reg_process_report(adapter, &tsf_report);
}

static inline
enum hdd_tsf_op_result _hdd_capture_tsf_internal(struct hdd_adapter *adapter,
						 uint32_t *buf, int len)
{
	if (!qdf_atomic_read(&adapter->tsf.tsf_details_valid))
		return hdd_capture_tsf_internal_via_wmi(adapter, buf, len);
	else
		return hdd_capture_tsf_internal_via_reg(adapter, buf, len);
}

#endif /* QCA_GET_TSF_VIA_REG */

static enum hdd_tsf_op_result hdd_capture_tsf_internal(
	struct hdd_adapter *adapter, uint32_t *buf, int len)
{
	enum hdd_tsf_op_result ret;
	struct hdd_context *hddctx;
	qdf_mc_timer_t *cap_timer;

	if (!adapter || !buf) {
		hdd_err("invalid pointer");
		return HDD_TSF_OP_FAIL;
	}

	if (len != 1)
		return HDD_TSF_OP_FAIL;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return HDD_TSF_OP_FAIL;
	}

	if (wlan_hdd_validate_context(hddctx)) {
		hdd_err("hdd context validation failed");
		return HDD_TSF_OP_FAIL;
	}

	if (!hdd_tsf_is_initialized(adapter)) {
		buf[0] = TSF_NOT_READY;
		return HDD_TSF_OP_SUCC;
	}

	buf[0] = hdd_tsf_check_conn_state(adapter);
	if (buf[0] != TSF_RETURN)
		return HDD_TSF_OP_SUCC;

	if (qdf_atomic_inc_return(&hddctx->tsf.cap_tsf_flag) > 1) {
		hdd_err("current in capture state");
		buf[0] = TSF_CURRENT_IN_CAP_STATE;
		return HDD_TSF_OP_SUCC;
	}

	/* record adapter for cap_tsf_irq_handler  */
	hddctx->tsf.cap_tsf_context = adapter;

	hdd_debug("+ioctl issue cap tsf cmd");
	cap_timer = &adapter->tsf.host_capture_req_timer;
	qdf_mc_timer_start(cap_timer, WLAN_HDD_CAPTURE_TSF_REQ_TIMEOUT_MS);

	/* Reset TSF value for new capture */
	adapter->tsf.cur_target_time = 0;

	buf[0] = TSF_RETURN;

	if (hdd_tsf_cap_sync_send(adapter))
		return HDD_TSF_OP_SUCC;

	ret = _hdd_capture_tsf_internal(adapter, buf, len);
	hdd_debug("-ioctl return cap tsf cmd");

	return ret;
}

static enum hdd_tsf_op_result hdd_indicate_tsf_internal(
	struct hdd_adapter *adapter, struct hdd_tsf_op_response *tsf_op_resp)
{
	int ret;
	struct hdd_context *hddctx;

	if (!adapter || !tsf_op_resp) {
		hdd_err("invalid pointer");
		return HDD_TSF_OP_FAIL;
	}

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return HDD_TSF_OP_FAIL;
	}

	memset(tsf_op_resp, 0, sizeof(*tsf_op_resp));
	if (!hdd_tsf_is_initialized(adapter)) {
		tsf_op_resp->status = TSF_NOT_READY;
		return HDD_TSF_OP_SUCC;
	}

	tsf_op_resp->status = hdd_tsf_check_conn_state(adapter);
	if (tsf_op_resp->status != TSF_RETURN)
		return HDD_TSF_OP_SUCC;

	if (adapter->tsf.cur_target_time == 0) {
		hdd_info("TSF value not received");
		tsf_op_resp->status = TSF_NOT_RETURNED_BY_FW;
		return HDD_TSF_OP_SUCC;
	}

	tsf_op_resp->status = TSF_RETURN;
	tsf_op_resp->time = adapter->tsf.cur_target_time;
	tsf_op_resp->soc_time = adapter->tsf.cur_tsf_sync_soc_time;

	if (!qdf_atomic_read(&hddctx->tsf.cap_tsf_flag)) {
		hdd_debug("old: status=%u, tsf_time=%llu, tsf_soc_time=%llu",
			  tsf_op_resp->status,
			  tsf_op_resp->time,
			  tsf_op_resp->soc_time);
		return HDD_TSF_OP_SUCC;
	}

	ret = hdd_tsf_reset_gpio(adapter);
	if (0 != ret) {
		hdd_err("reset tsf gpio fail");
		tsf_op_resp->status = TSF_RESET_GPIO_FAIL;
		return HDD_TSF_OP_SUCC;
	}
	hddctx->tsf.cap_tsf_context = NULL;
	qdf_atomic_set(&hddctx->tsf.cap_tsf_flag, 0);
	hdd_debug("get tsf cmd,status=%u, tsf_time=%llu, tsf_soc_time=%llu",
		  tsf_op_resp->status,
		  tsf_op_resp->time,
		  tsf_op_resp->soc_time);

	return HDD_TSF_OP_SUCC;
}

#ifdef WLAN_FEATURE_TSF_PLUS
/* unit for target time: us;  host time: ns */
#define HOST_TO_TARGET_TIME_RATIO NSEC_PER_USEC
#define MAX_ALLOWED_DEVIATION_NS (100 * NSEC_PER_USEC)
#define MAX_CONTINUOUS_ERROR_CNT 3

/* to distinguish 32-bit overflow case, this interval should:
 * equal or less than (1/2 * OVERFLOW_INDICATOR32 us)
 */
#if defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_IRQ) || \
	defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC)
#define WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC 2
#else
#define WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC 4
#endif
#define OVERFLOW_INDICATOR32 (((int64_t)0x1) << 32)
#define CAP_TSF_TIMER_FIX_SEC 1

/**
 * enum hdd_ts_status - timestamp status
 * @HDD_TS_STATUS_WAITING:  one of the stamp-pair is not updated
 * @HDD_TS_STATUS_READY:  valid tstamp-pair
 * @HDD_TS_STATUS_INVALID: invalid tstamp-pair
 */
enum hdd_ts_status {
	HDD_TS_STATUS_WAITING,
	HDD_TS_STATUS_READY,
	HDD_TS_STATUS_INVALID
};

static
enum hdd_tsf_op_result __hdd_start_tsf_sync(struct hdd_adapter *adapter)
{
	QDF_STATUS ret;

	if (!hdd_get_th_sync_status(adapter)) {
		hdd_err("Host Target sync has not initialized");
		return HDD_TSF_OP_FAIL;
	}

	hdd_tsf_gpio_sync_work_init(adapter);
	ret = qdf_mc_timer_start(&adapter->tsf.host_target_sync_timer,
				 WLAN_HDD_CAPTURE_TSF_INIT_INTERVAL_MS);
	if (ret != QDF_STATUS_SUCCESS && ret != QDF_STATUS_E_ALREADY) {
		hdd_err("Failed to start timer, ret: %d", ret);
		return HDD_TSF_OP_FAIL;
	}
	return HDD_TSF_OP_SUCC;
}

static
enum hdd_tsf_op_result __hdd_stop_tsf_sync(struct hdd_adapter *adapter)
{
	QDF_STATUS ret;
	struct hdd_context *hdd_ctx;

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	if (!hdd_ctx) {
		hdd_err("invalid hdd context");
		return HDD_TSF_OP_FAIL;
	}

	if (!hdd_get_th_sync_status(adapter)) {
		hdd_debug("Host Target sync has not initialized");
		return HDD_TSF_OP_SUCC;
	}

	ret = qdf_mc_timer_stop(&adapter->tsf.host_target_sync_timer);
	if (ret != QDF_STATUS_SUCCESS) {
		hdd_err("Failed to stop target timer, ret: %d", ret);
		return HDD_TSF_OP_FAIL;
	}

	ret = qdf_mc_timer_stop(&adapter->tsf.host_capture_req_timer);
	if (ret != QDF_STATUS_SUCCESS) {
		hdd_err("Failed to stop capture timer, ret: %d", ret);
		return HDD_TSF_OP_FAIL;
	}

	hdd_tsf_stop_ext_gpio_sync(adapter);
	hdd_tsf_gpio_sync_work_deinit(adapter);
	return HDD_TSF_OP_SUCC;
}

static inline void hdd_reset_timestamps(struct hdd_adapter *adapter)
{
	struct hdd_vdev_tsf *tsf = &adapter->tsf;

	qdf_spin_lock_bh(&tsf->host_target_sync_lock);
	tsf->cur_host_time = 0;
	tsf->cur_target_time = 0;
	tsf->last_host_time = 0;
	tsf->last_target_time = 0;
	qdf_spin_unlock_bh(&tsf->host_target_sync_lock);
}

/**
 * hdd_check_timestamp_status() - return the tstamp status
 * @last_target_time: the last saved target time
 * @last_sync_time: the last saved sync time
 * @cur_target_time: new target time
 * @cur_sync_time: new sync time
 * @force_sync: flag to force new timestamp-pair as valid
 *
 * This function check the new timstamp-pair(cur_host_time/cur_target_time)or
 * (cur_qtime_time/cur_target_time)
 * Return:
 * HDD_TS_STATUS_WAITING: cur_sync_time or cur_sync_time is 0
 * HDD_TS_STATUS_READY: cur_target_time/cur_host_time is a valid pair,
 *    and can be saved
 * HDD_TS_STATUS_INVALID: cur_target_time/cur_sync_time is a invalid pair,
 *    should be discard
 */
static
enum hdd_ts_status hdd_check_timestamp_status(
		uint64_t last_target_time,
		uint64_t last_sync_time,
		uint64_t cur_target_time,
		uint64_t cur_sync_time,
		bool force_sync)
{
	uint64_t delta_ns, delta_target_time, delta_sync_time;

	/* one or more are not updated, need to wait */
	if (cur_target_time == 0 || cur_sync_time == 0)
		return HDD_TS_STATUS_WAITING;

	/* init value, it's the first time to update the pair */
	if (last_target_time == 0 && last_sync_time == 0)
		return HDD_TS_STATUS_READY;

	/* the new values should be greater than the saved values */
	if ((cur_target_time <= last_target_time) ||
	    (cur_sync_time <= last_sync_time)) {
		hdd_err("Invalid timestamps!last_target_time: %llu;"
			"last_sync_time: %llu; cur_target_time: %llu;"
			"cur_sync_time: %llu",
			last_target_time, last_sync_time,
			cur_target_time, cur_sync_time);
		return HDD_TS_STATUS_INVALID;
	}

	delta_target_time = (cur_target_time - last_target_time) *
						NSEC_PER_USEC;
	delta_sync_time = cur_sync_time - last_sync_time;

	/*
	 * DO NOT use abs64() , a big uint64 value might be turned to
	 * a small int64 value
	 */
	delta_ns = ((delta_target_time > delta_sync_time) ?
			(delta_target_time - delta_sync_time) :
			(delta_sync_time - delta_target_time));
	hdd_debug("timestamps deviation - delta: %llu ns", delta_ns);
	/* the deviation should be smaller than a threshold */
	if (!force_sync && delta_ns > MAX_ALLOWED_DEVIATION_NS) {
		hdd_debug("Invalid timestamps - delta: %llu ns", delta_ns);
		return HDD_TS_STATUS_INVALID;
	}
	return HDD_TS_STATUS_READY;
}

static inline bool hdd_tsf_is_in_cap(struct hdd_adapter *adapter)
{
	struct hdd_context *hddctx;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx)
		return false;

	return qdf_atomic_read(&hddctx->tsf.cap_tsf_flag) > 0;
}

/* define 64bit plus/minus to deal with overflow */
static inline int hdd_64bit_plus(uint64_t x, int64_t y, uint64_t *ret)
{
	if ((y < 0 && (-y) > x) ||
	    (y > 0 && (y > U64_MAX - x))) {
		*ret = 0;
		return -EINVAL;
	}

	*ret = x + y;
	return 0;
}

static inline int hdd_uint64_plus(uint64_t x, uint64_t y, uint64_t *ret)
{
	if (!ret)
		return -EINVAL;

	if (x > (U64_MAX - y)) {
		*ret = 0;
		return -EINVAL;
	}

	*ret = x + y;
	return 0;
}

static inline int hdd_uint64_minus(uint64_t x, uint64_t y, uint64_t *ret)
{
	if (!ret)
		return -EINVAL;

	if (x < y) {
		*ret = 0;
		return -EINVAL;
	}

	*ret = x - y;
	return 0;
}

static inline int32_t hdd_get_hosttime_from_targettime(
	struct hdd_adapter *adapter, uint64_t target_time,
	uint64_t *host_time)
{
	struct hdd_vdev_tsf *tsf;
	int32_t ret = -EINVAL;
	int64_t delta32_target;
	bool in_cap_state;
	int64_t normal_interval_target;

	in_cap_state = hdd_tsf_is_in_cap(adapter);
	tsf = &adapter->tsf;

	/*
	 * To avoid check the lock when it's not capturing tsf
	 * (the tstamp-pair won't be changed)
	 */
	if (in_cap_state)
		qdf_spin_lock_bh(&tsf->host_target_sync_lock);

	hdd_wlan_restart_tsf_cap(adapter);
	/* at present, target_time is only 32bit in fact */
	delta32_target = (int64_t)((target_time & U32_MAX) -
			(tsf->last_target_time & U32_MAX));

	normal_interval_target = WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC *
		qdf_do_div(NSEC_PER_SEC, HOST_TO_TARGET_TIME_RATIO);

	if (delta32_target <
			(normal_interval_target - OVERFLOW_INDICATOR32))
		delta32_target += OVERFLOW_INDICATOR32;
	else if (delta32_target >
			(OVERFLOW_INDICATOR32 - normal_interval_target))
		delta32_target -= OVERFLOW_INDICATOR32;

	ret = hdd_64bit_plus(tsf->last_host_time,
			     HOST_TO_TARGET_TIME_RATIO * delta32_target,
			     host_time);

	if (in_cap_state)
		qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	return ret;
}

static inline int32_t hdd_get_targettime_from_hosttime(
	struct hdd_adapter *adapter, uint64_t host_time,
	uint64_t *target_time)
{
	struct hdd_vdev_tsf *tsf;
	int32_t ret = -EINVAL;
	bool in_cap_state;

	if (!adapter || host_time == 0)
		return ret;

	tsf = &adapter->tsf;
	in_cap_state = hdd_tsf_is_in_cap(adapter);
	if (in_cap_state)
		qdf_spin_lock_bh(&tsf->host_target_sync_lock);

	if (host_time < tsf->last_host_time)
		ret = hdd_uint64_minus(tsf->last_target_time,
				       qdf_do_div(tsf->last_host_time -
						  host_time,
						  HOST_TO_TARGET_TIME_RATIO),
				       target_time);
	else
		ret = hdd_uint64_plus(tsf->last_target_time,
				      qdf_do_div(host_time -
						 tsf->last_host_time,
						 HOST_TO_TARGET_TIME_RATIO),
				      target_time);

	if (in_cap_state)
		qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	return ret;
}

/**
 * hdd_get_soctime_from_tsf64time() - return get status
 *
 * @adapter: Adapter pointer
 * @tsf64_time: current tsf64time, us
 * @soc_time: current soc time(qtime), ns
 *
 * This function get current soc time from current tsf64 time
 * Returun int32_t value to tell get success or fail.
 *
 * Return:
 * 0:        success
 * other: fail
 *
 */
static inline int32_t hdd_get_soctime_from_tsf64time(
	struct hdd_adapter *adapter, uint64_t tsf64_time,
	uint64_t *soc_time)
{
	struct hdd_vdev_tsf *tsf;
	int32_t ret = -EINVAL;
	uint64_t delta64_tsf64time;
	uint64_t delta64_soctime;
	bool in_cap_state;

	in_cap_state = hdd_tsf_is_in_cap(adapter);
	tsf = &adapter->tsf;

	/*
	 * To avoid check the lock when it's not capturing tsf
	 * (the tstamp-pair won't be changed)
	 */
	if (in_cap_state)
		qdf_spin_lock_bh(&tsf->host_target_sync_lock);

	/* at present, target_time is 64bit (g_tsf64), us*/
	if (tsf64_time > tsf->last_target_global_tsf_time) {
		delta64_tsf64time = tsf64_time -
				    tsf->last_target_global_tsf_time;
		delta64_soctime = delta64_tsf64time * NSEC_PER_USEC;

		/* soc_time (ns)*/
		ret = hdd_uint64_plus(tsf->last_tsf_sync_soc_time,
				      delta64_soctime, soc_time);
	} else {
		delta64_tsf64time = tsf->last_target_global_tsf_time -
				    tsf64_time;
		delta64_soctime = delta64_tsf64time * NSEC_PER_USEC;

		/* soc_time (ns)*/
		ret = hdd_uint64_minus(tsf->last_tsf_sync_soc_time,
				       delta64_soctime, soc_time);
	}

	if (in_cap_state)
		qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	return ret;
}

/**
 * hdd_get_tsftime_from_qtime()
 *
 * @adapter: Adapter pointer
 * @qtime: current qtime, us
 * @tsf_time: current tsf time(qtime), us
 *
 * This function determines current tsf time
 * using current qtime
 *
 * Return: 0 for success or non-zero negative failure code
 */
static inline int32_t
hdd_get_tsftime_from_qtime(struct hdd_adapter *adapter, uint64_t qtime,
			   uint64_t *tsf_time)
{
	struct hdd_vdev_tsf *tsf;
	int32_t ret = -EINVAL;
	uint64_t delta64_tsf64time, tsf_sync_qtime;
	bool in_cap_state;

	in_cap_state = hdd_tsf_is_in_cap(adapter);
	tsf = &adapter->tsf;

	/*
	 * To avoid check the lock when it's not capturing tsf
	 * (the tstamp-pair won't be changed)
	 */
	if (in_cap_state)
		qdf_spin_lock_bh(&tsf->host_target_sync_lock);

	tsf_sync_qtime = tsf->last_tsf_sync_soc_time;
	tsf_sync_qtime = qdf_do_div(tsf_sync_qtime, NSEC_PER_USEC);

	if (qtime > tsf_sync_qtime) {
		delta64_tsf64time = qtime - tsf_sync_qtime;
		ret = hdd_uint64_plus(tsf->last_target_time,
				      delta64_tsf64time, tsf_time);
	} else {
		delta64_tsf64time = tsf_sync_qtime - qtime;
		ret = hdd_uint64_minus(tsf->last_target_time,
				       delta64_tsf64time, tsf_time);
	}

	if (in_cap_state)
		qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	return ret;
}

QDF_STATUS hdd_get_tsf_time(void *adapter_ctx, uint64_t input_time,
			    uint64_t *tsf_time)
{
	struct hdd_adapter *adapter;
	uint64_t qtime;

	/* Sanity check on inputs */
	if (unlikely((!adapter_ctx) || (!input_time))) {
		hdd_err("Invalid param passed");
		return QDF_STATUS_E_FAILURE;
	}

	adapter = (struct hdd_adapter *)adapter_ctx;
	if (unlikely(adapter->magic != WLAN_HDD_ADAPTER_MAGIC)) {
		hdd_err("Magic cookie(%x) for adapter sanity verification is invalid",
			adapter->magic);
		return QDF_STATUS_E_FAILURE;
	}

	qtime = qdf_log_timestamp_to_usecs(input_time);
	hdd_get_tsftime_from_qtime(adapter, qtime, tsf_time);
	return QDF_STATUS_SUCCESS;
}

static void hdd_capture_tsf_timer_expired_handler(void *arg)
{
	uint32_t tsf_op_resp;
	struct hdd_adapter *adapter;

	if (!arg)
		return;

	adapter = (struct hdd_adapter *)arg;
	hdd_capture_tsf_internal(adapter, &tsf_op_resp, 1);
}

#ifdef WLAN_FEATURE_TSF_ACCURACY
#define WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC 50
#define WLAN_HDD_TOGGLE_GPIO_BACKOFF_MAX_USEC 200
#define WLAN_HDD_PULSE_WIDTH_MSEC 1

/**
 * hdd_get_tsf_accuracy_context() - Return the TSF Accuracy config params
 * @adapter: Pointer to adapter
 *
 * This function validates feature config parameters
 *
 * Return: Pointer to TSF Accuracy feature configs
 */
static struct wlan_fwol_tsf_accuracy_configs *
hdd_get_tsf_accuracy_context(struct hdd_adapter *adapter)
{
	struct wlan_fwol_tsf_accuracy_configs *configs = NULL;
	struct hdd_context *hddctx;
	int status;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return NULL;
	}

	if (hddctx->tsf.tsf_accuracy_context &&
	    hddctx->tsf.tsf_accuracy_context != adapter)
		return NULL;

	status = ucfg_fwol_get_tsf_accuracy_configs(hddctx->psoc, &configs);
	if (status == QDF_STATUS_E_FAILURE)
		return NULL;

	if (!configs || !configs->enable ||
	    (configs->periodic_pulse_gpio == TSF_GPIO_PIN_INVALID &&
	     configs->sync_gpio == TSF_GPIO_PIN_INVALID))
		return NULL;

	return configs;
}

/**
 * hdd_tsf_gpio_pulse() - Raise pulse of WLAN_HDD_PULSE_WIDTH_MSEC on gpio
 * @gpio_num: GPIO number
 *
 * Return: None
 */
static void hdd_tsf_gpio_pulse(uint32_t gpio_num)
{
	if (gpio_num == TSF_GPIO_PIN_INVALID)
		return;

	gpio_set_value(gpio_num, OUTPUT_HIGH);
	udelay(WLAN_HDD_PULSE_WIDTH_MSEC * USEC_PER_MSEC);
	gpio_set_value(gpio_num, OUTPUT_LOW);
}

/**
 * hdd_tsf_gpio_timer_expired_handler() - Handle periodic TSF periodic expiry
 * @arg: Pointer to qdf_hrtimer_data_t
 *
 * Raise GPIO pulse on TSF time cycle completion and schedules hrtimer for
 * next cycle. Also, monitors drift between Host time and TSF time.
 * This data will be used for scheduling hrtimer expiry.
 *
 * Return:
 *      QDF_HRTIMER_RESTART - On completion of TSF cycle processing
 *      QDF_HRTIMER_NORESTART - On error
 */
static enum qdf_hrtimer_restart_status
hdd_tsf_gpio_timer_expired_handler(qdf_hrtimer_data_t *arg)
{
	struct hdd_adapter *adapter;
	struct hdd_vdev_tsf *tsf;
	struct wlan_fwol_tsf_accuracy_configs *configs;
	qdf_ktime_t cur_qtime, spin_until, next_ktime;
	uint64_t qtime;
	uint64_t tsf_time_us;
	uint32_t elapsed_time_us;
	uint32_t remaining_time_us;
	uint32_t delta_interval_us;

	tsf = qdf_container_of(arg, struct hdd_vdev_tsf,
			       host_trigger_gpio_timer);
	if (!tsf)
		return QDF_HRTIMER_NORESTART;

	adapter = qdf_container_of(tsf, struct hdd_adapter, tsf);

	configs = hdd_get_tsf_accuracy_context(adapter);
	if (!configs)
		return QDF_HRTIMER_NORESTART;

	/* Get current System and TSF mapping */
	qtime = qdf_log_timestamp_to_usecs(qdf_get_log_timestamp());
	hdd_get_tsftime_from_qtime(adapter, qtime, &tsf_time_us);
	elapsed_time_us = (uint32_t)
		(tsf_time_us % (configs->pulse_interval_ms * USEC_PER_MSEC));
	remaining_time_us =
		(configs->pulse_interval_ms * USEC_PER_MSEC) - elapsed_time_us;

	/* Skip raising GPIO pulse in case of TSF cycle already completed */
	if (elapsed_time_us < remaining_time_us) {
		next_ktime = qdf_ns_to_ktime(NSEC_PER_USEC *
			((configs->pulse_interval_ms * USEC_PER_MSEC) -
			 WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC -
			 elapsed_time_us));
		hdd_debug("TSF_Accuracy: skip GPIO pulse tsf_time_us:%llu",
			  tsf_time_us);
		goto end;
	}

	if (remaining_time_us > WLAN_HDD_TOGGLE_GPIO_BACKOFF_MAX_USEC)
		goto skip;
	/*
	 * Expect WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC seconds of backoff always
	 * for TSF time to complete a cycle of given interval.
	 * Hence run backoff busy wait and then trigger GPIO
	 */
	cur_qtime = qdf_ns_to_ktime(qtime * NSEC_PER_USEC);
	spin_until = qdf_ktime_add(cur_qtime,
				   qdf_ns_to_ktime(remaining_time_us *
				    NSEC_PER_USEC));
	do {
		qtime = qdf_log_timestamp_to_usecs(qdf_get_log_timestamp());
		cur_qtime = qdf_ns_to_ktime(qtime * NSEC_PER_USEC);
	} while (ktime_compare(cur_qtime, spin_until) < 0);

	/* Toggle GPIO */
	hdd_tsf_gpio_pulse(configs->periodic_pulse_gpio);

	/* Check current system and TSF mapping for logging */
	hdd_get_tsftime_from_qtime(adapter, qtime, &tsf_time_us);

	hdd_debug("TSF_Accuracy: GPIO toggled log_time_us:%llu, tsf_time_us:%llu, slept_us:%d",
		  qtime, tsf_time_us, remaining_time_us);

	/*
	 *  Schedule next GPIO toggle by adding to last expiry. Monitor drift
	 *  and adjust next expiry time based on system and TSF clock
	 *  difference.
	 */
skip:
	if (remaining_time_us > WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC) {
		delta_interval_us = remaining_time_us -
			WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC;
		next_ktime = qdf_ns_to_ktime(NSEC_PER_USEC *
					     ((configs->pulse_interval_ms *
					       USEC_PER_MSEC) +
					     delta_interval_us));
	} else {
		next_ktime = configs->pulse_interval_ms;
	}
end:
	qdf_hrtimer_add_expires(&adapter->tsf.host_trigger_gpio_timer,
				next_ktime);

	return QDF_HRTIMER_RESTART;
}

/**
 * hdd_tsf_setup_gpio_toggle() - Schedules hrtimer for TSF periodic processing.
 * @adapter: Pointer to adapter
 *
 * Schedule a TSF time domain periodic pulse handling and also indicate a
 * TSF sync done by toggling GPIO.
 *
 * Return: None
 */
static void hdd_tsf_setup_gpio_toggle(struct hdd_adapter *adapter)
{
	static uint32_t gpio_state = OUTPUT_LOW;
	uint64_t tsf_time_us;
	uint64_t qtime;
	uint32_t elapsed_time_us;
	uint32_t remaining_time_us;
	qdf_ktime_t cur_ktime, next_ktime;
	struct wlan_fwol_tsf_accuracy_configs *configs;
	qdf_hrtimer_data_t *gtimer;

	configs = hdd_get_tsf_accuracy_context(adapter);
	if (!configs)
		return;

	gtimer = &adapter->tsf.host_trigger_gpio_timer;

	/* Get current System and TSF mapping */
	cur_ktime = qdf_ktime_get();
	qtime = qdf_log_timestamp_to_usecs(qdf_get_log_timestamp());
	hdd_get_tsftime_from_qtime(adapter, qtime, &tsf_time_us);

	if (configs->sync_gpio != TSF_GPIO_PIN_INVALID) {
		if (gpio_state == OUTPUT_LOW)
			gpio_state = OUTPUT_HIGH;
		else
			gpio_state = OUTPUT_LOW;
		gpio_set_value(configs->sync_gpio, gpio_state);
	}

	hdd_debug("TSF_Accuracy: TSF sync done system_time_us:%llu, log_time_us:%llu, tsf_time_us:%llu",
		  qdf_ktime_to_us(cur_ktime), qtime, tsf_time_us);

	/* Start timer if it is not scheduled yet */
	if (!(qdf_hrtimer_is_queued(gtimer) ||
	      qdf_hrtimer_callback_running(gtimer))) {
		/*
		 * Take out WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC as backoff timer
		 * which is taken care by hrtimer handler
		 */
		elapsed_time_us = (uint32_t)(tsf_time_us % USEC_PER_SEC);
		remaining_time_us = USEC_PER_SEC - elapsed_time_us;
		if (remaining_time_us <= WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC)
			return;
		next_ktime = qdf_ktime_add(cur_ktime,
					   qdf_ns_to_ktime((remaining_time_us -
			WLAN_HDD_TOGGLE_GPIO_BACKOFF_USEC) * NSEC_PER_USEC));
		qdf_hrtimer_start(gtimer, next_ktime, QDF_HRTIMER_MODE_ABS);
	}
}

/**
 * hdd_tsf_regular_gpio_pulse_init() - Initialize TSF Accuracy feature
 * @adapter: Pointer to adapter
 *
 * Return: None
 */
static void hdd_tsf_regular_gpio_pulse_init(struct hdd_adapter *adapter)
{
	struct wlan_fwol_tsf_accuracy_configs *configs;
	struct hdd_context *hddctx;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return;
	}

	configs = hdd_get_tsf_accuracy_context(adapter);
	if (!configs)
		goto fail;

	qdf_hrtimer_init(&adapter->tsf.host_trigger_gpio_timer,
			 hdd_tsf_gpio_timer_expired_handler,
			 QDF_CLOCK_MONOTONIC, QDF_HRTIMER_MODE_ABS,
			 QDF_CONTEXT_HARDWARE);

	if (configs->periodic_pulse_gpio != TSF_GPIO_PIN_INVALID) {
		if (gpio_request(configs->periodic_pulse_gpio,
				 "tsf_periodic_pulse"))
			goto fail;
		if (gpio_direction_output(configs->periodic_pulse_gpio,
					  OUTPUT_LOW))
			goto fail_free_pulse_gpio;
	}

	if (configs->sync_gpio != TSF_GPIO_PIN_INVALID) {
		if (gpio_request(configs->sync_gpio, "tsf_sync_toggle"))
			goto fail_free_pulse_gpio;
		if (gpio_direction_output(configs->sync_gpio, OUTPUT_LOW))
			goto fail_free_gpio;
	}

	hddctx->tsf.tsf_accuracy_context = adapter;
	hdd_debug("TSF_Accuracy: Feature initialization success");
	return;

fail_free_gpio:
	gpio_free(configs->sync_gpio);
fail_free_pulse_gpio:
	if (configs->periodic_pulse_gpio != TSF_GPIO_PIN_INVALID)
		gpio_free(configs->periodic_pulse_gpio);
fail:
	hdd_err("TSF_Accuracy: Feature init failed");
}

/**
 * hdd_tsf_regular_gpio_pulse_deinit() - Deactivate TSF Accuracy feature
 * @adapter: Pointer to adapter
 *
 * Return: None
 */
static void hdd_tsf_regular_gpio_pulse_deinit(struct hdd_adapter *adapter)
{
	struct wlan_fwol_tsf_accuracy_configs *configs = NULL;
	struct hdd_context *hddctx;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return;
	}

	if (hddctx->tsf.tsf_accuracy_context != adapter)
		return;

	configs = hdd_get_tsf_accuracy_context(adapter);
	if (!configs)
		return;

	qdf_hrtimer_cancel(&adapter->tsf.host_trigger_gpio_timer);

	if (configs->periodic_pulse_gpio != TSF_GPIO_PIN_INVALID)
		gpio_free(configs->periodic_pulse_gpio);
	if (configs->sync_gpio != TSF_GPIO_PIN_INVALID) {
		gpio_set_value(configs->sync_gpio, OUTPUT_LOW);
		gpio_free(configs->sync_gpio);
	}

	hddctx->tsf.tsf_accuracy_context = NULL;
}
#else
static void hdd_tsf_setup_gpio_toggle(struct hdd_adapter *adapter)
{
}

static void hdd_tsf_regular_gpio_pulse_init(struct hdd_adapter *adapter)
{
}

static void hdd_tsf_regular_gpio_pulse_deinit(struct hdd_adapter *adapter)
{
}
#endif

#ifndef WLAN_FEATURE_TSF_PLUS_NOIRQ
#if !defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC) && \
	!defined(WLAN_FEATURE_TSF_TIMER_SYNC)

static irqreturn_t hdd_tsf_captured_irq_handler(int irq, void *arg)
{
	struct hdd_adapter *adapter;
	struct hdd_context *hdd_ctx;
	uint64_t host_time;
	char *name = NULL;

	if (!arg)
		return IRQ_NONE;

	if (irq != tsf_gpio_irq_num)
		return IRQ_NONE;

	hdd_ctx = (struct hdd_context *)arg;
	host_time = hdd_get_monotonic_host_time(hdd_ctx);

	adapter = hdd_ctx->tsf.cap_tsf_context;
	if (!adapter)
		return IRQ_HANDLED;

	if (!hdd_tsf_is_initialized(adapter)) {
		hdd_err("tsf is not init, ignore irq");
		return IRQ_HANDLED;
	}

	hdd_update_timestamp(adapter, 0, host_time);
	if (adapter->dev)
		name = adapter->dev->name;

	hdd_debug("irq: %d - iface: %s - host_time: %llu",
		  irq, (!name ? "none" : name), host_time);

	return IRQ_HANDLED;
}
#endif
#endif

void hdd_capture_req_timer_expired_handler(void *arg)
{
	struct hdd_adapter *adapter;
	struct hdd_context *hdd_ctx;
	struct hdd_vdev_tsf *tsf;
	QDF_TIMER_STATE capture_req_timer_status;
	qdf_mc_timer_t *sync_timer;
	int interval;
	int ret;

	if (!arg)
		return;
	adapter = (struct hdd_adapter *)arg;

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	if (!hdd_ctx) {
		hdd_warn("invalid hdd context");
		return;
	}
	tsf = &adapter->tsf;
	if (!hdd_tsf_is_initialized(adapter)) {
		hdd_warn("tsf not init");
		return;
	}

	qdf_spin_lock_bh(&tsf->host_target_sync_lock);
	tsf->cur_host_time = 0;
	tsf->cur_target_time = 0;
	qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	ret = hdd_tsf_reset_gpio(adapter);
	if (0 != ret)
		hdd_info("reset tsf gpio fail");

	hdd_ctx->tsf.cap_tsf_context = NULL;
	qdf_atomic_set(&hdd_ctx->tsf.cap_tsf_flag, 0);

	sync_timer = &tsf->host_target_sync_timer;
	capture_req_timer_status =
		qdf_mc_timer_get_current_state(sync_timer);

	if (capture_req_timer_status == QDF_TIMER_STATE_UNUSED) {
		hdd_warn("invalid timer status");
		return;
	}

	interval = WLAN_HDD_CAPTURE_TSF_RESYNC_INTERVAL * MSEC_PER_SEC;
	qdf_mc_timer_start(sync_timer, interval);
}

#if defined(WLAN_FEATURE_TSF_PLUS_NOIRQ) || \
	defined(WLAN_FEATURE_TSF_TIMER_SYNC)
static void hdd_update_timestamp(struct hdd_adapter *adapter)
{
	int interval = 0;
	enum hdd_ts_status sync_status;
	struct hdd_vdev_tsf *tsf;

	if (!adapter)
		return;

	tsf = &adapter->tsf;
	/* on ADREASTEA ach, Qtime is used to sync host and tsf time as a
	 * intermedia there is no IRQ to sync up TSF-HOST, so host time in ns
	 * and target in us will be updated at the same time in WMI command
	 * callback
	 */

	qdf_spin_lock_bh(&tsf->host_target_sync_lock);
	sync_status =
		  hdd_check_timestamp_status(tsf->last_target_time,
					     tsf->last_tsf_sync_soc_time,
					     tsf->cur_target_time,
					     tsf->cur_tsf_sync_soc_time,
					     tsf->host_target_sync_force);
	if (tsf->host_target_sync_force)
		tsf->host_target_sync_force = false;

	hdd_debug("sync_status %d", sync_status);
	switch (sync_status) {
	case HDD_TS_STATUS_INVALID:
		if (++tsf->continuous_error_count <
		    MAX_CONTINUOUS_ERROR_CNT) {
			interval =
				WLAN_HDD_CAPTURE_TSF_INIT_INTERVAL_MS;
			tsf->cur_target_time = 0;
			tsf->cur_tsf_sync_soc_time = 0;
			break;
		}
		hdd_debug("Reach the max continuous error count");

		/* If reach MAX_CONTINUOUS_ERROR_CNT, treat it as valid pair */
		fallthrough;
	case HDD_TS_STATUS_READY:
		tsf->last_target_time = tsf->cur_target_time;
		tsf->last_target_global_tsf_time =
			tsf->cur_target_global_tsf_time;
		tsf->last_tsf_sync_soc_time =
				tsf->cur_tsf_sync_soc_time;
		tsf->cur_target_time = 0;
		tsf->cur_target_global_tsf_time = 0;
		tsf->cur_tsf_sync_soc_time = 0;
		hdd_debug("ts-pair updated: target: %llu; g_target:%llu, Qtime: %llu",
			  tsf->last_target_time,
			  tsf->last_target_global_tsf_time,
			  tsf->last_tsf_sync_soc_time);

		/*
		 * TSF-HOST need to be updated in at most
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC, it couldn't be achieved
		 * if the timer interval is also
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC, due to processing or
		 * schedule delay. So deduct several seconds from
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC.
		 * Without this change, hdd_get_hosttime_from_targettime() will
		 * get wrong host time when it's longer than
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC from last
		 * TSF-HOST update.
		 */

		if (tsf->dynamic_tsf_sync_interval)
			interval = tsf->dynamic_tsf_sync_interval;
		else
			interval = (WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC -
				    CAP_TSF_TIMER_FIX_SEC) * MSEC_PER_SEC;

		tsf->continuous_error_count = 0;
		tsf->continuous_cap_retry_count = 0;
		hdd_debug("ts-pair updated: interval: %d",
			  interval);
		break;
	case HDD_TS_STATUS_WAITING:
		interval = 0;
		hdd_warn("TS status is waiting due to one or more pair not updated");
		break;
	}
	qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	hdd_tsf_setup_gpio_toggle(adapter);

	if (interval > 0)
		qdf_mc_timer_start(&tsf->host_target_sync_timer,
				   interval);
}

static ssize_t __hdd_wlan_tsf_show(struct device *dev,
				   struct device_attribute *attr, char *buf)
{
	struct hdd_station_ctx *hdd_sta_ctx;
	struct hdd_adapter *adapter;
	struct hdd_context *hdd_ctx;
	uint64_t tsf_sync_qtime, host_time, reg_qtime, qtime, target_time;
	ssize_t size;
	uint8_t *mac;

	struct net_device *net_dev = container_of(dev, struct net_device, dev);

	adapter = (struct hdd_adapter *)(netdev_priv(net_dev));
	if (adapter->magic != WLAN_HDD_ADAPTER_MAGIC)
		return scnprintf(buf, PAGE_SIZE, "Invalid device\n");

	if (!hdd_get_th_sync_status(adapter))
		return scnprintf(buf, PAGE_SIZE,
				 "TSF sync is not initialized\n");

	hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter->deflink);
	if (!hdd_cm_is_vdev_associated(adapter->deflink) &&
	    (adapter->device_mode == QDF_STA_MODE ||
	    adapter->device_mode == QDF_P2P_CLIENT_MODE))
		return scnprintf(buf, PAGE_SIZE, "NOT connected\n");

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);

	if (!hdd_ctx)
		return scnprintf(buf, PAGE_SIZE, "Invalid HDD context\n");

	reg_qtime = qdf_get_log_timestamp();
	host_time = hdd_get_monotonic_host_time(hdd_ctx);

	qtime = qdf_log_timestamp_to_usecs(reg_qtime);
	do_div(host_time, NSEC_PER_USEC);
	hdd_get_tsftime_from_qtime(adapter, qtime, &target_time);
	tsf_sync_qtime = adapter->tsf.last_tsf_sync_soc_time;
	do_div(tsf_sync_qtime, NSEC_PER_USEC);

	if (adapter->device_mode == QDF_STA_MODE ||
	    adapter->device_mode == QDF_P2P_CLIENT_MODE) {
		mac = hdd_sta_ctx->conn_info.bssid.bytes;
		size = scnprintf(buf, PAGE_SIZE,
				 "%s%llu %llu " QDF_MAC_ADDR_FMT
				 " %llu %llu %llu\n",
				 buf, adapter->tsf.last_target_time,
				 tsf_sync_qtime,
				 QDF_MAC_ADDR_REF(mac),
				 qtime, host_time, target_time);
	} else {
		mac = adapter->mac_addr.bytes;
		size = scnprintf(buf, PAGE_SIZE,
				 "%s%llu %llu " QDF_MAC_ADDR_FMT
				 " %llu %llu %llu\n",
				 buf, adapter->tsf.last_target_time,
				 tsf_sync_qtime,
				 QDF_MAC_ADDR_REF(mac),
				 qtime, host_time, target_time);
	}

	return size;
}

static inline void hdd_update_tsf(struct hdd_adapter *adapter, uint64_t tsf)
{
	struct hdd_tsf_op_response tsf_op_resp;

	hdd_indicate_tsf_internal(adapter, &tsf_op_resp);
	hdd_update_timestamp(adapter);
}
#else
static void hdd_update_timestamp(struct hdd_adapter *adapter,
				 uint64_t target_time, uint64_t host_time)
{
	int interval = 0;
	enum hdd_ts_status sync_status;
	struct hdd_vdev_tsf	*tsf;
	if (!adapter)
		return;
	tsf = &adapter->tsf;
	/* host time is updated in IRQ context, it's always before target time,
	 * and so no need to try update last_host_time at present;
	 * since the interval of capturing TSF
	 * (WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC) is long enough, host and target
	 * time are updated in pairs, and one by one, we can return here to
	 * avoid requiring spin lock, and to speed up the IRQ processing.
	 */
	if (host_time > 0)
		tsf->cur_host_time = host_time;

	qdf_spin_lock_bh(&tsf->host_target_sync_lock);
	if (target_time > 0)
		tsf->cur_target_time = target_time;

	sync_status =
		  hdd_check_timestamp_status(tsf->last_target_time,
					     tsf->last_host_time,
					     tsf->cur_target_time,
					     tsf->cur_host_time,
					     tsf->host_target_sync_force);
	if (tsf->host_target_sync_force)
		tsf->host_target_sync_force = false;

	hdd_debug("sync_status %d", sync_status);
	switch (sync_status) {
	case HDD_TS_STATUS_INVALID:
		if (++tsf->continuous_error_count <
		    MAX_CONTINUOUS_ERROR_CNT) {
			interval =
				WLAN_HDD_CAPTURE_TSF_INIT_INTERVAL_MS;
			tsf->cur_target_time = 0;
			tsf->cur_host_time = 0;
			break;
		}
		hdd_warn("Reach the max continuous error count");
		/*
		 * fall through:
		 * If reach MAX_CONTINUOUS_ERROR_CNT, treat it as a
		 * valid pair
		 */
	case HDD_TS_STATUS_READY:
		tsf->last_target_time = tsf->cur_target_time;
		tsf->last_host_time = tsf->cur_host_time;
		tsf->cur_target_time = 0;
		tsf->cur_host_time = 0;
		hdd_debug("ts-pair updated: target: %llu; host: %llu",
			  tsf->last_target_time,
			  tsf->last_host_time);

		/*
		 * TSF-HOST need to be updated in at most
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC, it couldn't be achieved
		 * if the timer interval is also
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC, due to processing or
		 * schedule delay. So deduct several seconds from
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC.
		 * Without this change, hdd_get_hosttime_from_targettime() will
		 * get wrong host time when it's longer than
		 * WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC from last
		 * TSF-HOST update.
		 */
		interval = (WLAN_HDD_CAPTURE_TSF_INTERVAL_SEC -
			    CAP_TSF_TIMER_FIX_SEC) * MSEC_PER_SEC;
		if (adapter->device_mode == QDF_SAP_MODE ||
		    adapter->device_mode == QDF_P2P_GO_MODE) {
			interval *= WLAN_HDD_SOFTAP_INTERVAL_TIMES;
		}

		tsf->continuous_error_count = 0;
		tsf->continuous_cap_retry_count = 0;
		hdd_debug("ts-pair updated: interval: %d",
			  interval);
		break;
	case HDD_TS_STATUS_WAITING:
		interval = 0;
		hdd_warn("TS status is waiting due to one or more pair not updated");

		if (!target_time && !host_time)
			interval = hdd_wlan_retry_tsf_cap(adapter);
		break;
	}
	qdf_spin_unlock_bh(&tsf->host_target_sync_lock);

	if (interval > 0)
		qdf_mc_timer_start(&tsf->host_target_sync_timer,
				   interval);
}

static ssize_t __hdd_wlan_tsf_show(struct device *dev,
				   struct device_attribute *attr, char *buf)
{
	struct hdd_station_ctx *hdd_sta_ctx;
	struct hdd_adapter *adapter;
	struct hdd_context *hdd_ctx;
	ssize_t size;
	uint64_t host_time, target_time;
	uint8_t *mac;

	struct net_device *net_dev = container_of(dev, struct net_device, dev);

	adapter = (struct hdd_adapter *)(netdev_priv(net_dev));
	if (adapter->magic != WLAN_HDD_ADAPTER_MAGIC)
		return scnprintf(buf, PAGE_SIZE, "Invalid device\n");

	if (!hdd_get_th_sync_status(adapter))
		return scnprintf(buf, PAGE_SIZE,
				 "TSF sync is not initialized\n");

	hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter->deflink);
	if (!hdd_cm_is_vdev_associated(adapter->deflink) &&
	    (adapter->device_mode == QDF_STA_MODE ||
	    adapter->device_mode == QDF_P2P_CLIENT_MODE))
		return scnprintf(buf, PAGE_SIZE, "NOT connected\n");

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	if (!hdd_ctx)
		return scnprintf(buf, PAGE_SIZE, "Invalid HDD context\n");

	host_time = hdd_get_monotonic_host_time(hdd_ctx);

	if (hdd_get_targettime_from_hosttime(adapter, host_time,
					     &target_time)) {
		size = scnprintf(buf, PAGE_SIZE, "Invalid timestamp\n");
	} else {
		if (adapter->device_mode == QDF_STA_MODE ||
		    adapter->device_mode == QDF_P2P_CLIENT_MODE) {
			mac = hdd_sta_ctx->conn_info.bssid.bytes;
			size = scnprintf(buf, PAGE_SIZE,
					 "%s%llu %llu " QDF_MAC_ADDR_FMT "\n",
					 buf, target_time, host_time,
					 QDF_MAC_ADDR_REF(mac));
		} else {
			mac = adapter->mac_addr.bytes;
			size = scnprintf(buf, PAGE_SIZE,
					 "%s%llu %llu " QDF_MAC_ADDR_FMT "\n",
					 buf, target_time, host_time,
					 QDF_MAC_ADDR_REF(mac));
		}
	}

	return size;
}

static inline void hdd_update_tsf(struct hdd_adapter *adapter, uint64_t tsf)
{
	struct hdd_tsf_op_response tsf_op_resp;

	hdd_indicate_tsf_internal(adapter, &tsf_op_resp);
	hdd_update_timestamp(adapter, tsf, 0);
}
#endif

static ssize_t hdd_wlan_tsf_show(struct device *dev,
				 struct device_attribute *attr, char *buf)
{
	struct net_device *net_dev = container_of(dev, struct net_device, dev);
	struct osif_vdev_sync *vdev_sync;
	ssize_t err_size;

	err_size = osif_vdev_sync_op_start(net_dev, &vdev_sync);
	if (err_size)
		return err_size;

	err_size = __hdd_wlan_tsf_show(dev, attr, buf);

	osif_vdev_sync_op_stop(vdev_sync);

	return err_size;
}

static DEVICE_ATTR(tsf, 0444, hdd_wlan_tsf_show, NULL);

static enum hdd_tsf_op_result hdd_tsf_sync_init(struct hdd_adapter *adapter)
{
	QDF_STATUS ret;
	struct hdd_context *hddctx;
	struct net_device *net_dev;
	uint64_t host_time, qtime;

	if (!adapter)
		return HDD_TSF_OP_FAIL;

	hddctx = WLAN_HDD_GET_CTX(adapter);
	if (!hddctx) {
		hdd_err("invalid hdd context");
		return HDD_TSF_OP_FAIL;
	}

	if (!qdf_atomic_read(&hddctx->tsf.tsf_ready_flag)) {
		hdd_err("TSF feature has NOT been initialized");
		return HDD_TSF_OP_FAIL;
	}

	if (!adapter->tsf.enable_dynamic_tsf_sync) {
		hdd_debug("TSF sync feature not enabled");
		return HDD_TSF_OP_FAIL;
	}

	if (hdd_get_th_sync_status(adapter)) {
		hdd_err("Host Target sync has been initialized!!");
		return HDD_TSF_OP_SUCC;
	}

	qdf_spinlock_create(&adapter->tsf.host_target_sync_lock);

	hdd_reset_timestamps(adapter);

	ret = qdf_mc_timer_init(&adapter->tsf.host_target_sync_timer,
				QDF_TIMER_TYPE_SW,
				hdd_capture_tsf_timer_expired_handler,
				(void *)adapter);
	if (ret != QDF_STATUS_SUCCESS) {
		hdd_err("Failed to init target timer, ret: %d", ret);
		goto fail;
	}

	ret = qdf_mc_timer_init(&adapter->tsf.host_capture_req_timer,
				QDF_TIMER_TYPE_SW,
				hdd_capture_req_timer_expired_handler,
				(void *)adapter);
	if (ret != QDF_STATUS_SUCCESS) {
		hdd_err("Failed to init capture timer, ret: %d", ret);
		qdf_mc_timer_destroy(&adapter->tsf.host_target_sync_timer);
		goto fail;
	}

	hdd_tsf_regular_gpio_pulse_init(adapter);

	net_dev = adapter->dev;
	if (net_dev && hdd_tsf_is_dbg_fs_set(hddctx))
		device_create_file(&net_dev->dev, &dev_attr_tsf);
	hdd_set_th_sync_status(adapter, true);

	qtime = qdf_get_log_timestamp();
	host_time = hdd_get_monotonic_host_time(hddctx);

	qtime = qdf_log_timestamp_to_usecs(qtime);
	do_div(host_time, NSEC_PER_USEC);

	adapter->delta_qtime = (qtime - host_time) * NSEC_PER_USEC;

	return HDD_TSF_OP_SUCC;
fail:
	hdd_set_th_sync_status(adapter, false);
	return HDD_TSF_OP_FAIL;
}

static enum hdd_tsf_op_result hdd_tsf_sync_deinit(struct hdd_adapter *adapter)
{
	QDF_STATUS ret;
	struct hdd_context *hddctx;
	struct net_device *net_dev;

	if (!adapter)
		return HDD_TSF_OP_FAIL;

	if (!hdd_get_th_sync_status(adapter))
		return HDD_TSF_OP_SUCC;

	hdd_set_th_sync_status(adapter, false);

	hdd_tsf_regular_gpio_pulse_deinit(adapter);

	ret = qdf_mc_timer_destroy(&adapter->tsf.host_target_sync_timer);
	if (ret != QDF_STATUS_SUCCESS)
		hdd_err("Failed to destroy target timer, ret: %d", ret);

	ret = qdf_mc_timer_destroy(&adapter->tsf.host_capture_req_timer);
	if (ret != QDF_STATUS_SUCCESS)
		hdd_err("Failed to destroy capture timer, ret: %d", ret);

	hddctx = WLAN_HDD_GET_CTX(adapter);

	/* reset the cap_tsf flag and gpio if needed */
	if (hddctx && qdf_atomic_read(&hddctx->tsf.cap_tsf_flag) &&
	    hddctx->tsf.cap_tsf_context == adapter) {
		int reset_ret = hdd_tsf_reset_gpio(adapter);

		if (reset_ret)
			hdd_err("Failed to reset tsf gpio, ret:%d",
				reset_ret);
		hddctx->tsf.cap_tsf_context = NULL;
		qdf_atomic_set(&hddctx->tsf.cap_tsf_flag, 0);
	}

	hdd_reset_timestamps(adapter);

	net_dev = adapter->dev;
	if (net_dev && hdd_tsf_is_dbg_fs_set(hddctx)) {
		struct device *dev = &net_dev->dev;

		device_remove_file(dev, &dev_attr_tsf);
	}
	return HDD_TSF_OP_SUCC;
}

int hdd_start_tsf_sync(struct hdd_adapter *adapter)
{
	enum hdd_tsf_op_result ret;

	if (!adapter)
		return -EINVAL;

	ret = hdd_tsf_sync_init(adapter);
	if (ret != HDD_TSF_OP_SUCC)
		return -EINVAL;

	return (__hdd_start_tsf_sync(adapter) ==
		HDD_TSF_OP_SUCC) ? 0 : -EINVAL;
}

void hdd_restart_tsf_sync_post_wlan_resume(struct hdd_adapter *adapter)
{
	QDF_STATUS status;
	qdf_mc_timer_t *sync_timer;

	if (!hdd_get_th_sync_status(adapter)) {
		hdd_err("Host TSF sync is not initialized!!");
		return;
	}

	sync_timer = &adapter->tsf.host_target_sync_timer;
	if (QDF_TIMER_STATE_RUNNING ==
		qdf_mc_timer_get_current_state(sync_timer)) {
		status = qdf_mc_timer_stop_sync(sync_timer);
		if (status != QDF_STATUS_SUCCESS) {
			hdd_err("Couldn't stop Host TSF sync running timer!!");
			return;
		}

		adapter->tsf.host_target_sync_force = true;
		status = qdf_mc_timer_start(sync_timer, 10);
		if (status != QDF_STATUS_SUCCESS)
			hdd_err("Host TSF sync timer restart failed");

		hdd_debug("Host TSF sync timer restarted post wlan resume");
	}
}

int hdd_stop_tsf_sync(struct hdd_adapter *adapter)
{
	enum hdd_tsf_op_result ret;

	if (!adapter)
		return -EINVAL;

	ret = __hdd_stop_tsf_sync(adapter);
	if (ret != HDD_TSF_OP_SUCC)
		return -EINVAL;

	ret = hdd_tsf_sync_deinit(adapter);
	if (ret != HDD_TSF_OP_SUCC) {
		hdd_err("Failed to deinit tsf sync, ret: %d", ret);
		return -EINVAL;
	}
	return 0;
}

static inline int __hdd_capture_tsf(struct hdd_adapter *adapter,
				    uint32_t *buf, int len)
{
	if (!adapter || !buf) {
		hdd_err("invalid pointer");
		return -EINVAL;
	}

	if (len != 1)
		return -EINVAL;

	buf[0] = TSF_DISABLED_BY_TSFPLUS;

	return 0;
}

/**
 * hdd_handle_tsf_dynamic_start()
 * @adapter: Adapter pointer
 * @attr: TSF sync interval from NL interface
 *
 * This function enables TSF sync if capture mode is Dynamic set from ini
 *
 * Return: 0 for success or non-zero negative failure code
 */
static int hdd_handle_tsf_dynamic_start(struct hdd_adapter *adapter,
					struct nlattr *attr)
{
	struct hdd_context *hdd_ctx;
	struct hdd_vdev_tsf *tsf;
	uint32_t dynamic_tsf_sync_interval = 0;

	if (!adapter)
		return -EINVAL;

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	if (wlan_hdd_validate_context(hdd_ctx))
		return -EINVAL;

	if (attr)
		dynamic_tsf_sync_interval = nla_get_u32(attr);

	tsf = &adapter->tsf;

	if (tsf->enable_dynamic_tsf_sync) {
		if (dynamic_tsf_sync_interval ==
		    tsf->dynamic_tsf_sync_interval) {
			return -EALREADY;
		}
		tsf->dynamic_tsf_sync_interval =
			 dynamic_tsf_sync_interval;
		return 0;
	}

	tsf->dynamic_tsf_sync_interval = dynamic_tsf_sync_interval;
	tsf->enable_dynamic_tsf_sync = true;
	if (hdd_tsf_is_time_sync_enabled_cfg(hdd_ctx))
		pld_set_tsf_sync_period(hdd_ctx->parent_dev,
					dynamic_tsf_sync_interval);

	return hdd_start_tsf_sync(adapter);
}

/**
 * hdd_handle_tsf_dynamic_stop()
 * @adapter: Adapter pointer
 *
 * This function disable TSF sync if capture mode is Dynamic set from ini
 *
 * Return: 0 for success or non-zero negative failure code
 */
static int hdd_handle_tsf_dynamic_stop(struct hdd_adapter *adapter)
{
	struct hdd_context *hdd_ctx;

	if (!adapter)
		return -EINVAL;

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	if (wlan_hdd_validate_context(hdd_ctx))
		return -EINVAL;

	if (!adapter->tsf.enable_dynamic_tsf_sync)
		return -EALREADY;

	adapter->tsf.enable_dynamic_tsf_sync = false;
	adapter->tsf.dynamic_tsf_sync_interval = 0;
	if (hdd_tsf_is_time_sync_enabled_cfg(hdd_ctx))
		pld_reset_tsf_sync_period(hdd_ctx->parent_dev);

	return hdd_stop_tsf_sync(adapter);
}

#if defined(WLAN_FEATURE_TSF_TIMER_SYNC)
static enum hdd_tsf_op_result __hdd_indicate_tsf(struct hdd_adapter *adapter,
						 struct hdd_tsf_op_response
								*tsf_op_resp)
{
	if (!adapter || !tsf_op_resp) {
		hdd_err("invalid pointer");
		return HDD_TSF_OP_FAIL;
	}

	memset(tsf_op_resp, 0, sizeof(*tsf_op_resp));
	if (!hdd_tsf_is_initialized(adapter)) {
		tsf_op_resp->status = TSF_NOT_READY;
		return HDD_TSF_OP_SUCC;
	}

	tsf_op_resp->status = hdd_tsf_check_conn_state(adapter);
	if (tsf_op_resp->status != TSF_RETURN)
		return HDD_TSF_OP_SUCC;

	if (adapter->tsf.last_target_time == 0) {
		hdd_info("TSF value not received");
		tsf_op_resp->status = TSF_NOT_RETURNED_BY_FW;
		return HDD_TSF_OP_SUCC;
	}

	tsf_op_resp->time = adapter->tsf.last_target_time;
	tsf_op_resp->soc_time = adapter->tsf.last_tsf_sync_soc_time;

	return HDD_TSF_OP_SUCC;
}

#else
static enum hdd_tsf_op_result __hdd_indicate_tsf(struct hdd_adapter *adapter,
						 struct hdd_tsf_op_response
								*tsf_op_resp)
{
	if (!adapter || !tsf_op_resp) {
		hdd_err("invalid pointer");
		return HDD_TSF_OP_FAIL;
	}

	tsf_op_resp->status = TSF_DISABLED_BY_TSFPLUS;
	tsf_op_resp->time = 0;
	tsf_op_resp->soc_time = 0;

	return HDD_TSF_OP_SUCC;
}
#endif

#ifdef WLAN_FEATURE_TSF_PLUS_SOCK_TS
#ifdef CONFIG_HL_SUPPORT
static inline
enum hdd_tsf_op_result hdd_netbuf_timestamp(qdf_nbuf_t netbuf,
					    uint64_t target_time)
{
	struct hdd_adapter *adapter;
	struct net_device *net_dev = netbuf->dev;

	if (!net_dev)
		return HDD_TSF_OP_FAIL;

	adapter = (struct hdd_adapter *)(netdev_priv(net_dev));
	if (adapter && adapter->magic == WLAN_HDD_ADAPTER_MAGIC &&
	    hdd_get_th_sync_status(adapter)) {
		uint64_t host_time;
		int32_t ret = hdd_get_hosttime_from_targettime(adapter,
				target_time, &host_time);
		if (!ret) {
			netbuf->tstamp = ns_to_ktime(host_time);
			return HDD_TSF_OP_SUCC;
		}
	}

	return HDD_TSF_OP_FAIL;
}

#else
static inline
enum hdd_tsf_op_result hdd_netbuf_timestamp(qdf_nbuf_t netbuf,
					    uint64_t target_time)
{
	struct hdd_adapter *adapter;
	struct net_device *net_dev = netbuf->dev;
	struct skb_shared_hwtstamps hwtstamps;

	if (!net_dev)
		return HDD_TSF_OP_FAIL;

	adapter = (struct hdd_adapter *)(netdev_priv(net_dev));
	if (adapter && adapter->magic == WLAN_HDD_ADAPTER_MAGIC &&
	    hdd_get_th_sync_status(adapter)) {
		uint64_t tsf64_time = target_time;
		uint64_t soc_time = 0;/*ns*/
		int32_t ret = hdd_get_soctime_from_tsf64time(adapter,
				tsf64_time, &soc_time);
		if (!ret) {
			/* Adjust delta_qtime to soc_time(Qtime), so that
			 * System Monotonic time and Qtime are in sync.
			 */
			if (soc_time > (adapter->delta_qtime)) {
				hwtstamps.hwtstamp =
				soc_time - (adapter->delta_qtime);
				*skb_hwtstamps(netbuf) = hwtstamps;
				netbuf->tstamp = ktime_set(0, 0);
				return HDD_TSF_OP_SUCC;
			} else {
				return HDD_TSF_OP_FAIL;
			}
		}
	}

	return HDD_TSF_OP_FAIL;
}
#endif

/**
 * hdd_tx_timestamp() - time stamp TX netbuf
 * @status: TX status
 * @netbuf: pointer to a TX netbuf
 * @target_time: TX time for the netbuf
 *
 * This function  get corresponding host time from target time,
 * and time stamp the TX netbuf with this time
 *
 * Return: Describe the execute result of this routine
 */
static int hdd_tx_timestamp(enum htt_tx_status status,
			    qdf_nbuf_t netbuf, uint64_t target_time)
{
	struct sock *sk = netbuf->sk;

	if (!sk)
		return -EINVAL;

	if ((skb_shinfo(netbuf)->tx_flags & SKBTX_HW_TSTAMP) &&
	    !(skb_shinfo(netbuf)->tx_flags & SKBTX_IN_PROGRESS)) {
		struct sock_exterr_skb *serr;
		qdf_nbuf_t new_netbuf;
		int err;

		if (hdd_netbuf_timestamp(netbuf, target_time) !=
		    HDD_TSF_OP_SUCC)
			return -EINVAL;

		new_netbuf = qdf_nbuf_clone(netbuf);
		if (!new_netbuf)
			return -ENOMEM;

		serr = SKB_EXT_ERR(new_netbuf);
		memset(serr, 0, sizeof(*serr));

		switch (status) {
		case htt_tx_status_ok:
			serr->ee.ee_errno = ENOMSG;
			break;
		case htt_tx_status_discard:
			serr->ee.ee_errno = ENOBUFS;
			break;
		case htt_tx_status_no_ack:
			serr->ee.ee_errno = EREMOTEIO;
			break;
		default:
			serr->ee.ee_errno = ENOMSG;
			break;
		}

		hdd_debug("packet status %d, sock ee_errno %d",
			  status, serr->ee.ee_errno);

		serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;

		err = sock_queue_err_skb(sk, new_netbuf);
		if (err) {
			qdf_nbuf_free(new_netbuf);
			return err;
		}

		return 0;
	}
	return -EINVAL;
}

int hdd_rx_timestamp(qdf_nbuf_t netbuf, uint64_t target_time)
{
	if (hdd_netbuf_timestamp(netbuf, target_time) ==
		HDD_TSF_OP_SUCC)
		return 0;

	/* reset tstamp when failed */
	netbuf->tstamp = ktime_set(0, 0);
	return -EINVAL;
}

static inline void wlan_hdd_tsf_plus_sock_ts_init(struct hdd_context *hdd_ctx)
{
	if (hdd_tsf_is_tx_set(hdd_ctx))
		ol_register_timestamp_callback(hdd_tx_timestamp);
}

static inline void wlan_hdd_tsf_plus_sock_ts_deinit(struct hdd_context *hdd_ctx)
{
	if (hdd_tsf_is_tx_set(hdd_ctx))
		ol_deregister_timestamp_callback();
}
#else
static inline void wlan_hdd_tsf_plus_sock_ts_init(struct hdd_context *hdd_ctx)
{
}

static inline void wlan_hdd_tsf_plus_sock_ts_deinit(struct hdd_context *hdd_ctx)
{
}
#endif /* WLAN_FEATURE_TSF_PLUS_SOCK_TS */

#if defined(WLAN_FEATURE_TSF_PLUS_NOIRQ)
static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_init(struct hdd_context *hdd_ctx)
{

	wlan_hdd_tsf_plus_sock_ts_init(hdd_ctx);
	return HDD_TSF_OP_SUCC;
}

static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_deinit(struct hdd_context *hdd_ctx)
{
	wlan_hdd_tsf_plus_sock_ts_deinit(hdd_ctx);
	return HDD_TSF_OP_SUCC;
}

#elif defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_SYNC)
static
enum hdd_tsf_op_result wlan_hdd_tsf_plus_init(struct hdd_context *hdd_ctx)
{
	int ret;
	QDF_STATUS status;
	uint32_t tsf_sync_gpio_pin = TSF_GPIO_PIN_INVALID;

	status = ucfg_fwol_get_tsf_sync_host_gpio_pin(hdd_ctx->psoc,
						      &tsf_sync_gpio_pin);
	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err("tsf gpio irq host pin error");
		goto fail;
	}

	if (tsf_sync_gpio_pin == TSF_GPIO_PIN_INVALID) {
		hdd_err("gpio host pin is invalid");
		goto fail;
	}

	ret = gpio_request(tsf_sync_gpio_pin, "wlan_tsf");
	if (ret) {
		hdd_err("gpio host pin is invalid");
		goto fail;
	}

	ret = gpio_direction_output(tsf_sync_gpio_pin, OUTPUT_LOW);
	if (ret) {
		hdd_err("gpio host pin is invalid");
		goto fail_free_gpio;
	}

	wlan_hdd_tsf_plus_sock_ts_init(hdd_ctx);

	return HDD_TSF_OP_SUCC;

fail_free_gpio:
	gpio_free(tsf_sync_gpio_pin);
fail:
	return HDD_TSF_OP_FAIL;
}

static
enum hdd_tsf_op_result wlan_hdd_tsf_plus_deinit(struct hdd_context *hdd_ctx)
{
	QDF_STATUS status;
	uint32_t tsf_sync_gpio_pin = TSF_GPIO_PIN_INVALID;

	status = ucfg_fwol_get_tsf_sync_host_gpio_pin(hdd_ctx->psoc,
						      &tsf_sync_gpio_pin);
	if (QDF_IS_STATUS_ERROR(status))
		return QDF_STATUS_E_INVAL;

	if (tsf_sync_gpio_pin == TSF_GPIO_PIN_INVALID)
		return QDF_STATUS_E_INVAL;

	wlan_hdd_tsf_plus_sock_ts_deinit(hdd_ctx);

	gpio_free(tsf_sync_gpio_pin);
	return HDD_TSF_OP_SUCC;
}

#elif defined(WLAN_FEATURE_TSF_PLUS_EXT_GPIO_IRQ)
static
enum hdd_tsf_op_result wlan_hdd_tsf_plus_init(struct hdd_context *hdd_ctx)
{
	int ret;
	QDF_STATUS status;
	uint32_t tsf_irq_gpio_pin = TSF_GPIO_PIN_INVALID;

	status = ucfg_fwol_get_tsf_irq_host_gpio_pin(hdd_ctx->psoc,
						     &tsf_irq_gpio_pin);
	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err("tsf gpio irq host pin error");
		goto fail;
	}

	if (tsf_irq_gpio_pin == TSF_GPIO_PIN_INVALID) {
		hdd_err("gpio host pin is invalid");
		goto fail;
	}

	ret = gpio_request(tsf_irq_gpio_pin, "wlan_tsf");
	if (ret) {
		hdd_err("gpio host pin is invalid");
		goto fail;
	}

	ret = gpio_direction_input(tsf_irq_gpio_pin);
	if (ret) {
		hdd_err("gpio host pin is invalid");
		goto fail_free_gpio;
	}

	tsf_gpio_irq_num = gpio_to_irq(tsf_irq_gpio_pin);
	if (tsf_gpio_irq_num < 0) {
		hdd_err("fail to get irq: %d", tsf_gpio_irq_num);
		goto fail_free_gpio;
	}

	ret = request_irq(tsf_gpio_irq_num, hdd_tsf_captured_irq_handler,
			  IRQF_SHARED | IRQF_TRIGGER_RISING, "wlan_tsf",
			  hdd_ctx);

	if (ret) {
		hdd_err("Failed to register irq handler: %d", ret);
		goto fail_free_gpio;
	}

	wlan_hdd_tsf_plus_sock_ts_init(hdd_ctx);

	return HDD_TSF_OP_SUCC;

fail_free_gpio:
	gpio_free(tsf_irq_gpio_pin);
fail:
	tsf_gpio_irq_num = -1;
	return HDD_TSF_OP_FAIL;
}

static
enum hdd_tsf_op_result wlan_hdd_tsf_plus_deinit(struct hdd_context *hdd_ctx)
{
	QDF_STATUS status;
	uint32_t tsf_irq_gpio_pin = TSF_GPIO_PIN_INVALID;

	status = ucfg_fwol_get_tsf_irq_host_gpio_pin(hdd_ctx->psoc,
						     &tsf_irq_gpio_pin);
	if (QDF_IS_STATUS_ERROR(status))
		return QDF_STATUS_E_INVAL;

	if (tsf_irq_gpio_pin == TSF_GPIO_PIN_INVALID)
		return QDF_STATUS_E_INVAL;

	wlan_hdd_tsf_plus_sock_ts_deinit(hdd_ctx);

	if (tsf_gpio_irq_num >= 0) {
		free_irq(tsf_gpio_irq_num, hdd_ctx);
		tsf_gpio_irq_num = -1;
		gpio_free(tsf_irq_gpio_pin);
	}

	return HDD_TSF_OP_SUCC;
}

#elif defined(WLAN_FEATURE_TSF_TIMER_SYNC)
static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_init(struct hdd_context *hdd_ctx)
{
	return HDD_TSF_OP_SUCC;
}

static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_deinit(struct hdd_context *hdd_ctx)
{
	return HDD_TSF_OP_SUCC;
}
#else
static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_init(struct hdd_context *hdd_ctx)
{
	int ret;

	ret = cnss_common_register_tsf_captured_handler(
			hdd_ctx->parent_dev,
			hdd_tsf_captured_irq_handler,
			(void *)hdd_ctx);
	if (ret != 0) {
		hdd_err("Failed to register irq handler: %d", ret);
		return HDD_TSF_OP_FAIL;
	}

	wlan_hdd_tsf_plus_sock_ts_init(hdd_ctx);
	return HDD_TSF_OP_SUCC;
}

static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_deinit(struct hdd_context *hdd_ctx)
{
	int ret;

	wlan_hdd_tsf_plus_sock_ts_deinit(hdd_ctx);

	ret = cnss_common_unregister_tsf_captured_handler(
				hdd_ctx->parent_dev,
				(void *)hdd_ctx);
	if (ret != 0) {
		hdd_err("Failed to unregister irq handler, ret:%d",
			ret);
		ret = HDD_TSF_OP_FAIL;
	}

	return HDD_TSF_OP_SUCC;
}
#endif
#else
static inline void hdd_update_tsf(struct hdd_adapter *adapter, uint64_t tsf)
{
}

static enum hdd_tsf_op_result __hdd_indicate_tsf(struct hdd_adapter *adapter,
						 struct hdd_tsf_op_response
								*tsf_op_resp)
{
	return hdd_indicate_tsf_internal(adapter, tsf_op_resp);
}

static inline int __hdd_capture_tsf(struct hdd_adapter *adapter,
				    uint32_t *buf, int len)
{
	return (hdd_capture_tsf_internal(adapter, buf, len) ==
		HDD_TSF_OP_SUCC) ? 0 : -EINVAL;
}

static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_init(struct hdd_context *hdd_ctx)
{
	return HDD_TSF_OP_SUCC;
}

static inline
enum hdd_tsf_op_result wlan_hdd_tsf_plus_deinit(struct hdd_context *hdd_ctx)
{
	return HDD_TSF_OP_SUCC;
}

static inline int hdd_handle_tsf_dynamic_start(struct hdd_adapter *adapter,
					       struct nlattr *attr)
{
	return -ENOTSUPP;
}

static inline int hdd_handle_tsf_dynamic_stop(struct hdd_adapter *adapter)
{
	return -ENOTSUPP;
}
#endif /* WLAN_FEATURE_TSF_PLUS */

int hdd_capture_tsf(struct hdd_adapter *adapter, uint32_t *buf, int len)
{
	return __hdd_capture_tsf(adapter, buf, len);
}

int hdd_indicate_tsf(struct hdd_adapter *adapter,
		     struct hdd_tsf_op_response *tsf_op_resp)
{
	if (__hdd_indicate_tsf(adapter, tsf_op_resp) == HDD_TSF_OP_FAIL)
		return -EINVAL;

	switch (tsf_op_resp->status) {
	case TSF_RETURN:
		return 0;
	case TSF_NOT_RETURNED_BY_FW:
		return -EINPROGRESS;
	case TSF_STA_NOT_CONNECTED_NO_TSF:
	case TSF_SAP_NOT_STARTED_NO_TSF:
		return -EPERM;
	default:
		return -EINVAL;
	}
}

#ifdef WLAN_FEATURE_TSF_PTP
int wlan_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)

{
	struct hdd_adapter *adapter = netdev_priv(dev);
	struct osif_vdev_sync *vdev_sync;
	struct hdd_context *hdd_ctx;
	int errno;

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	errno = wlan_hdd_validate_context(hdd_ctx);
	if (errno)
		return -EINVAL;

	errno = osif_vdev_sync_op_start(dev, &vdev_sync);
	if (errno)
		return -EAGAIN;

	info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
				 SOF_TIMESTAMPING_RX_HARDWARE |
				 SOF_TIMESTAMPING_RAW_HARDWARE;
	if (hdd_ctx->tsf.ptp_clock)
		info->phc_index = ptp_clock_index(hdd_ctx->tsf.ptp_clock);
	else
		info->phc_index = -1;

	osif_vdev_sync_op_stop(vdev_sync);
	return 0;
}

#if (KERNEL_VERSION(4, 1, 0) > LINUX_VERSION_CODE)
/**
 * wlan_ptp_gettime() - return fw ts info to uplayer
 * @ptp: pointer to ptp_clock_info.
 * @ts: pointer to timespec.
 *
 * Return: Describe the execute result of this routine
 */
static int wlan_ptp_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
{
	uint64_t host_time, target_time = 0;
	struct hdd_context *hdd_ctx;
	struct hdd_adapter *adapter;
	struct osif_psoc_sync *psoc_sync;
	int errno, status = 0;

	hdd_ctx = = cds_get_context(QDF_MODULE_ID_HDD);
	errno = wlan_hdd_validate_context(hdd_ctx);
	if (errno)
		return -EINVAL;

	errno = osif_psoc_sync_op_start(hdd_ctx->parent_dev, &psoc_sync);
	if (errno)
		return -EAGAIN;

	adapter = hdd_get_adapter(hdd_ctx, QDF_P2P_GO_MODE);
	if (!adapter) {
		adapter = hdd_get_adapter(hdd_ctx, QDF_P2P_CLIENT_MODE);
		if (!adapter) {
			adapter = hdd_get_adapter(hdd_ctx, QDF_SAP_MODE);
			if (!adapter)
				adapter = hdd_get_adapter(hdd_ctx,
							  QDF_STA_MODE);
				if (!adapter) {
					status = -EOPNOTSUPP;
					goto end;
				}
		}
	}

	host_time = hdd_get_monotonic_host_time(hdd_ctx);
	if (hdd_get_targettime_from_hosttime(adapter, host_time,
					     &target_time)) {
		hdd_err("get invalid target timestamp");
		status = -EINVAL;
		goto end;
	}
	*ts = ns_to_timespec(target_time * NSEC_PER_USEC);

end:
	osif_psoc_sync_op_stop(psoc_sync);
	return status;
}

/**
 * wlan_hdd_phc_init() - phc init
 * @hdd_ctx: pointer to the hdd_context.
 *
 * Return: NULL
 */
static void wlan_hdd_phc_init(struct hdd_context *hdd_ctx)
{
	hdd_ctx->tsf.ptp_cinfo.gettime = wlan_ptp_gettime;

	hdd_ctx->tsf.ptp_clock = ptp_clock_register(&hdd_ctx->tsf.ptp_cinfo,
						    hdd_ctx->parent_dev);
}

/**
 * wlan_hdd_phc_deinit() - phc deinit
 * @hdd_ctx: pointer to the hdd_context.
 *
 * Return: NULL
 */
static void wlan_hdd_phc_deinit(struct hdd_context *hdd_ctx)
{
	hdd_ctx->tsf.ptp_cinfo.gettime = NULL;

	if (hdd_ctx->tsf.ptp_clock) {
		ptp_clock_unregister(hdd_ctx->tsf.ptp_clock);
		hdd_ctx->tsf.ptp_clock = NULL;
	}
}

#else
static int wlan_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
{
	uint64_t host_time, target_time = 0;
	struct hdd_context *hdd_ctx;
	struct hdd_adapter *adapter;
	struct osif_psoc_sync *psoc_sync;
	int errno, status = 0;

	hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
	errno = wlan_hdd_validate_context(hdd_ctx);
	if (errno)
		return -EINVAL;

	errno = osif_psoc_sync_op_start(hdd_ctx->parent_dev, &psoc_sync);
	if (errno)
		return -EAGAIN;

	adapter = hdd_get_adapter(hdd_ctx, QDF_P2P_GO_MODE);
	if (!adapter) {
		adapter = hdd_get_adapter(hdd_ctx, QDF_P2P_CLIENT_MODE);
		if (!adapter) {
			adapter = hdd_get_adapter(hdd_ctx, QDF_SAP_MODE);
			if (!adapter)
				adapter = hdd_get_adapter(hdd_ctx,
							  QDF_STA_MODE);
				if (!adapter) {
					status = -EOPNOTSUPP;
					goto end;
				}
		}
	}

	host_time = hdd_get_monotonic_host_time(hdd_ctx);
	if (hdd_get_targettime_from_hosttime(adapter, host_time,
					     &target_time)) {
		hdd_err("get invalid target timestamp");
		status = -EINVAL;
		goto end;
	}
	*ts = ns_to_timespec64(target_time * NSEC_PER_USEC);

end:
	osif_psoc_sync_op_stop(psoc_sync);
	return status;
}

static void wlan_hdd_phc_init(struct hdd_context *hdd_ctx)
{
	hdd_ctx->tsf.ptp_cinfo.gettime64 = wlan_ptp_gettime;
	hdd_ctx->tsf.ptp_clock = ptp_clock_register(&hdd_ctx->tsf.ptp_cinfo,
						    hdd_ctx->parent_dev);
}

static void wlan_hdd_phc_deinit(struct hdd_context *hdd_ctx)
{
	hdd_ctx->tsf.ptp_cinfo.gettime64 = NULL;

	if (hdd_ctx->tsf.ptp_clock) {
		ptp_clock_unregister(hdd_ctx->tsf.ptp_clock);
		hdd_ctx->tsf.ptp_clock = NULL;
	}
}

#endif
#else

static void wlan_hdd_phc_init(struct hdd_context *hdd_ctx)
{
}

static void wlan_hdd_phc_deinit(struct hdd_context *hdd_ctx)
{
}
#endif /* WLAN_FEATURE_TSF_PTP */

#ifdef WLAN_FEATURE_TSF_AUTO_REPORT
void hdd_tsf_auto_report_init(struct hdd_adapter *adapter)
{
	adapter->tsf.auto_rpt_src = 0;
}

int
hdd_set_tsf_auto_report(struct hdd_adapter *adapter, bool ena,
			enum hdd_tsf_auto_rpt_source source)
{
	int ret = 0;
	bool enabled;

	enabled = !!adapter->tsf.auto_rpt_src;
	if (enabled == ena) {
		hdd_debug_rl("source %d current %d and no action is required",
			     source, enabled);
		goto set_src;
	}

	ret = wma_cli_set_command((int)adapter->deflink->vdev_id,
				  ena ? (int)GEN_PARAM_TSF_AUTO_REPORT_ENABLE :
				  (int)GEN_PARAM_TSF_AUTO_REPORT_DISABLE,
				  ena, GEN_CMD);
	if (ret) {
		hdd_err_rl("source %d enable %d failed: %d", source, ena, ret);
		ret = -EINPROGRESS;
		goto out;
	}

set_src:
	if (ena)
		qdf_atomic_set_bit(source, &adapter->tsf.auto_rpt_src);
	else
		qdf_atomic_clear_bit(source, &adapter->tsf.auto_rpt_src);

out:
	return ret;
}

/**
 * hdd_tsf_auto_report_enabled() - get current state of tsf auto report
 * for an adapter
 * @adapter: pointer to Adapter context
 *
 * Return: true for enabled, false for disabled
 */
static inline bool hdd_tsf_auto_report_enabled(struct hdd_adapter *adapter)
{
	return !!adapter->tsf.auto_rpt_src;
}

/**
 * hdd_set_delta_tsf() - calculate and save the time difference between
 * TQM clock and TSF clock
 * @adapter: pointer to Adapter context
 * @ptsf: pointer to tsf information
 *
 * Return: QDF_STATUS
 */
static QDF_STATUS hdd_set_delta_tsf(struct hdd_adapter *adapter,
				    struct stsf *ptsf)
{
	void *soc = cds_get_context(QDF_MODULE_ID_SOC);
	uint32_t delta_tsf;

	/* A tsf report event with mac_id_valid equals to 1 represents
	 * for tsf auto report, that's what we need to handle in this
	 * function; otherwise, return failure here so that legacy BSS
	 * TSF logic can be continued.
	 */
	if (!ptsf->mac_id_valid) {
		hdd_debug_rl("Not TSF auto report");
		return QDF_STATUS_E_FAILURE;
	}

	if (!hdd_tsf_auto_report_enabled(adapter)) {
		hdd_debug_rl("adapter %u tsf_auto_report disabled",
			     adapter->deflink->vdev_id);
		goto exit_with_success;
	}

	delta_tsf = ptsf->tsf_low - ptsf->soc_timer_low;
	hdd_debug("vdev %u tsf_low %u qtimer_low %u delta_tsf %u",
		  ptsf->vdev_id, ptsf->tsf_low, ptsf->soc_timer_low, delta_tsf);

	/* Pass delta_tsf to DP layer to calculate hw delay
	 * on a per vdev basis
	 */
	cdp_set_delta_tsf(soc, adapter->deflink->vdev_id, delta_tsf);

exit_with_success:
	return QDF_STATUS_SUCCESS;
}
#else /* !WLAN_FEATURE_TSF_AUTO_REPORT */
static inline QDF_STATUS hdd_set_delta_tsf(struct hdd_adapter *adapter,
					   struct stsf *ptsf)
{
	return QDF_STATUS_E_NOSUPPORT;
}

static inline bool hdd_tsf_auto_report_enabled(struct hdd_adapter *adapter)
{
	return false;
}
#endif /* WLAN_FEATURE_TSF_AUTO_REPORT */

#ifdef WLAN_FEATURE_TSF_UPLINK_DELAY
/**
 * hdd_set_tsf_ul_delay_report() - enable or disable tsf uplink delay report
 * for an adapter
 * @adapter: pointer to Adapter context
 * @ena: requesting state (true or false)
 *
 * Return: 0 for success or non-zero negative failure code
 */
static int
hdd_set_tsf_ul_delay_report(struct hdd_adapter *adapter, bool ena)
{
	void *soc = cds_get_context(QDF_MODULE_ID_SOC);
	QDF_STATUS status;

	status = cdp_set_tsf_ul_delay_report(soc,
					     adapter->deflink->vdev_id,
					     ena);

	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err_rl("Set tsf report uplink delay failed");
		return -EPERM;
	}

	return 0;
}

uint32_t hdd_get_uplink_delay_len(struct hdd_adapter *adapter)
{
	if (adapter->device_mode != QDF_STA_MODE)
		return 0;

	return nla_total_size(sizeof(uint32_t));
}

QDF_STATUS hdd_add_uplink_delay(struct hdd_adapter *adapter,
				struct sk_buff *skb)
{
	void *soc = cds_get_context(QDF_MODULE_ID_SOC);
	QDF_STATUS status;
	uint32_t ul_delay;

	if (adapter->device_mode != QDF_STA_MODE &&
	    adapter->device_mode != QDF_P2P_CLIENT_MODE)
		return QDF_STATUS_SUCCESS;

	if (hdd_tsf_auto_report_enabled(adapter)) {
		status = cdp_get_uplink_delay(soc, adapter->deflink->vdev_id,
					      &ul_delay);
		if (QDF_IS_STATUS_ERROR(status))
			ul_delay = 0;
	} else {
		ul_delay = 0;
	}

	if (nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_GET_STA_INFO_UPLINK_DELAY,
			ul_delay))
		return QDF_STATUS_E_FAILURE;

	return QDF_STATUS_SUCCESS;
}
#else
static inline int
hdd_set_tsf_ul_delay_report(struct hdd_adapter *adapter, bool ena)
{
	return -ENOTSUPP;
}
#endif /* WLAN_FEATURE_TSF_UPLINK_DELAY */

/**
 * hdd_get_tsf_cb() - handle tsf callback
 * @pcb_cxt: pointer to the hdd_contex
 * @ptsf: pointer to struct stsf
 *
 * This function handle the event that reported by firmware at first.
 * The event contains the vdev_id, current tsf value of this vdev,
 * tsf value is 64bits, discripted in two variable tsf_low and tsf_high.
 * These two values each is uint32.
 *
 * Return: 0 for success or non-zero negative failure code
 */
int hdd_get_tsf_cb(void *pcb_cxt, struct stsf *ptsf)
{
	struct hdd_context *hddctx;
	struct hdd_adapter *adapter;
	struct wlan_hdd_link_info *link_info;
	int ret;
	uint64_t tsf_sync_soc_time;
	QDF_TIMER_STATE capture_req_timer_status;
	qdf_mc_timer_t *capture_timer;
	struct hdd_vdev_tsf *tsf;

	if (!pcb_cxt || !ptsf) {
		hdd_err("HDD context is not valid");
			return -EINVAL;
	}

	hddctx = (struct hdd_context *)pcb_cxt;
	ret = wlan_hdd_validate_context(hddctx);
	if (0 != ret)
		return -EINVAL;

	link_info = hdd_get_link_info_by_vdev(hddctx, ptsf->vdev_id);
	if (!link_info) {
		hdd_err("failed to find adapter");
		return -EINVAL;
	}

	adapter = link_info->adapter;
	/* Intercept tsf report and check if it is for auto report.
	 * If yes, return in advance and skip the legacy BSS TSF
	 * report. Otherwise continue on to the legacy BSS TSF
	 * report logic.
	 */
	if (QDF_IS_STATUS_SUCCESS(hdd_set_delta_tsf(adapter, ptsf)))
		return 0;

	if (!hdd_tsf_is_initialized(adapter)) {
		hdd_err("tsf is not init, ignore tsf event");
		return -EINVAL;
	}

	hdd_debug("tsf cb handle event, device_mode is %d",
		  adapter->device_mode);

	wlan_hdd_tsf_reg_update_details(adapter, ptsf);

	tsf = &adapter->tsf;
	capture_timer = &tsf->host_capture_req_timer;
	capture_req_timer_status =
		qdf_mc_timer_get_current_state(capture_timer);
	if (capture_req_timer_status == QDF_TIMER_STATE_UNUSED) {
		hdd_warn("invalid timer status");
		return -EINVAL;
	}

	qdf_mc_timer_stop(capture_timer);
	tsf->cur_target_time = ((uint64_t)ptsf->tsf_high << 32 |
			 ptsf->tsf_low);

	tsf->cur_target_global_tsf_time =
		((uint64_t)ptsf->global_tsf_high << 32 |
			 ptsf->global_tsf_low);
	tsf_sync_soc_time = ((uint64_t)ptsf->soc_timer_high << 32 |
			ptsf->soc_timer_low);
	tsf->cur_tsf_sync_soc_time =
		hdd_convert_qtime_to_us(tsf_sync_soc_time) * NSEC_PER_USEC;

	qdf_event_set(&tsf_sync_get_completion_evt);
	hdd_update_tsf(adapter, tsf->cur_target_time);
	hdd_debug("Vdev=%u, tsf_low=%u, tsf_high=%u ptsf->soc_timer_low=%u ptsf->soc_timer_high=%u",
		  ptsf->vdev_id, ptsf->tsf_low, ptsf->tsf_high,
		  ptsf->soc_timer_low, ptsf->soc_timer_high);
	return 0;
}

const struct nla_policy tsf_policy[QCA_WLAN_VENDOR_ATTR_TSF_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_TSF_CMD] = {.type = NLA_U32},
	[QCA_WLAN_VENDOR_ATTR_TSF_SYNC_INTERVAL] = {.type = NLA_U32},
};

/**
 * __wlan_hdd_cfg80211_handle_tsf_cmd(): Setup TSF operations
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Handle TSF SET / GET operation from userspace
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_handle_tsf_cmd(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data,
					int data_len)
{
	struct net_device *dev = wdev->netdev;
	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	struct hdd_context *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_TSF_MAX + 1];
	struct hdd_tsf_op_response tsf_op_resp;
	struct nlattr *attr;
	enum hdd_tsf_get_state value;
	int status;
	QDF_STATUS ret;
	struct sk_buff *reply_skb;
	uint32_t tsf_cmd;
	enum qca_nl80211_vendor_subcmds_index index =
		QCA_NL80211_VENDOR_SUBCMD_TSF_INDEX;
	bool enable_auto_rpt;
	enum hdd_tsf_auto_rpt_source source =
		HDD_TSF_AUTO_RPT_SOURCE_UPLINK_DELAY;

	hdd_enter_dev(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (0 != status)
		return -EINVAL;

	if (wlan_cfg80211_nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_TSF_MAX,
				    data, data_len, tsf_policy)) {
		hdd_err("Invalid TSF cmd");
		return -EINVAL;
	}

	if (!tb_vendor[QCA_WLAN_VENDOR_ATTR_TSF_CMD]) {
		hdd_err("Invalid TSF cmd");
		return -EINVAL;
	}
	tsf_cmd = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_TSF_CMD]);

	/* Intercept tsf_cmd for TSF auto report enable or disable subcmds,
	 * and treat as trigger for uplink delay report.
	 */
	if (tsf_cmd == QCA_TSF_AUTO_REPORT_DISABLE ||
	    tsf_cmd == QCA_TSF_AUTO_REPORT_ENABLE) {
		enable_auto_rpt = (tsf_cmd == QCA_TSF_AUTO_REPORT_ENABLE);
		status = hdd_set_tsf_auto_report(adapter,
						 enable_auto_rpt,
						 source);
		if (status)
			goto end;

		hdd_set_tsf_ul_delay_report(adapter, enable_auto_rpt);
		goto end;
	}

	ret = qdf_event_reset(&tsf_sync_get_completion_evt);
	if (QDF_IS_STATUS_ERROR(ret))
		hdd_warn("failed to reset tsf_sync_get_completion_evt");

	if (tsf_cmd == QCA_TSF_CAPTURE || tsf_cmd == QCA_TSF_SYNC_GET) {
		hdd_capture_tsf(adapter, &value, 1);
		switch (value) {
		case TSF_RETURN:
			status = 0;
			break;
		case TSF_CURRENT_IN_CAP_STATE:
			status = -EALREADY;
			break;
		case TSF_STA_NOT_CONNECTED_NO_TSF:
		case TSF_SAP_NOT_STARTED_NO_TSF:
			status = -EPERM;
			break;
		default:
		case TSF_CAPTURE_FAIL:
			status = -EINVAL;
			break;
		}
	} else if (tsf_cmd == QCA_TSF_SYNC_START) {
		attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_TSF_SYNC_INTERVAL];
		status = hdd_handle_tsf_dynamic_start(adapter, attr);
	} else if (tsf_cmd == QCA_TSF_SYNC_STOP) {
		status = hdd_handle_tsf_dynamic_stop(adapter);
	} else {
		status = 0;
	}

	if (status < 0)
		goto end;

	if (tsf_cmd == QCA_TSF_SYNC_GET) {
		ret = qdf_wait_single_event(&tsf_sync_get_completion_evt,
					    WLAN_TSF_SYNC_GET_TIMEOUT);
		if (QDF_IS_STATUS_ERROR(ret)) {
			status = -ETIMEDOUT;
			goto end;
		}
	}

	if (tsf_cmd == QCA_TSF_GET || tsf_cmd == QCA_TSF_SYNC_GET) {
		status = hdd_indicate_tsf(adapter, &tsf_op_resp);
		if (status != 0)
			goto end;

		reply_skb =
			wlan_cfg80211_vendor_event_alloc(hdd_ctx->wiphy, NULL,
							 sizeof(uint64_t) * 2 +
							 NLMSG_HDRLEN,
							 index, GFP_KERNEL);
		if (!reply_skb) {
			hdd_err("wlan_cfg80211_vendor_cmd_alloc_reply_skb failed");
			status = -ENOMEM;
			goto end;
		}
		if (hdd_wlan_nla_put_u64(reply_skb,
				QCA_WLAN_VENDOR_ATTR_TSF_TIMER_VALUE,
				tsf_op_resp.time) ||
		    hdd_wlan_nla_put_u64(reply_skb,
				QCA_WLAN_VENDOR_ATTR_TSF_SOC_TIMER_VALUE,
				tsf_op_resp.soc_time)) {
			hdd_err("nla put fail");
			wlan_cfg80211_vendor_free_skb(reply_skb);
			status = -EINVAL;
			goto end;
		}
		status = wlan_cfg80211_vendor_cmd_reply(reply_skb);
	}

end:
	hdd_info("TSF operation %d status: %d", tsf_cmd, status);
	return status;
}

int wlan_hdd_cfg80211_handle_tsf_cmd(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data,
					int data_len)
{
	int errno;
	struct osif_vdev_sync *vdev_sync;

	errno = osif_vdev_sync_op_start(wdev->netdev, &vdev_sync);
	if (errno)
		return errno;

	errno = __wlan_hdd_cfg80211_handle_tsf_cmd(wiphy, wdev, data, data_len);

	osif_vdev_sync_op_stop(vdev_sync);

	return errno;
}

/**
 * wlan_hdd_tsf_init() - set callback to handle tsf value.
 * @hdd_ctx: pointer to the struct hdd_context
 *
 * This function set the callback to sme module, the callback will be
 * called when a tsf event is reported by firmware
 *
 * Return: none
 */
void wlan_hdd_tsf_init(struct hdd_context *hdd_ctx)
{
	QDF_STATUS status;

	if (!hdd_ctx)
		return;

	if (qdf_atomic_inc_return(&hdd_ctx->tsf.tsf_ready_flag) > 1) {
		hdd_err("TSF ready flag already set");
		return;
	}

	qdf_atomic_init(&hdd_ctx->tsf.cap_tsf_flag);

	status = qdf_event_create(&tsf_sync_get_completion_evt);
	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err("failed to create tsf_sync_get_completion_evt");
		goto fail;
	}

	status = hdd_tsf_set_gpio(hdd_ctx);

	if (QDF_STATUS_SUCCESS != status) {
		hdd_err("set tsf GPIO failed, status: %d", status);
		goto fail;
	}

	if (wlan_hdd_tsf_plus_init(hdd_ctx) != HDD_TSF_OP_SUCC) {
		hdd_err("TSF plus init  failed");
		goto fail;
	}

	if (hdd_tsf_is_ptp_enabled(hdd_ctx))
		wlan_hdd_phc_init(hdd_ctx);

	return;

fail:
	qdf_atomic_set(&hdd_ctx->tsf.tsf_ready_flag, 0);
}

void wlan_hdd_tsf_deinit(struct hdd_context *hdd_ctx)
{
	QDF_STATUS status;

	if (!hdd_ctx)
		return;

	status = qdf_event_destroy(&tsf_sync_get_completion_evt);
	if (QDF_IS_STATUS_ERROR(status))
		hdd_err("failed to destroy tsf_sync_get_completion_evt");

	if (!qdf_atomic_read(&hdd_ctx->tsf.tsf_ready_flag)) {
		hdd_err("ready flag not set");
		return;
	}

	if (hdd_tsf_is_ptp_enabled(hdd_ctx))
		wlan_hdd_phc_deinit(hdd_ctx);
	wlan_hdd_tsf_plus_deinit(hdd_ctx);
	qdf_atomic_set(&hdd_ctx->tsf.tsf_ready_flag, 0);
	qdf_atomic_set(&hdd_ctx->tsf.cap_tsf_flag, 0);
}