wmi_unified.c

/*
 * Copyright (c) 2015-2017 The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * 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.
 */

/*
 * This file was originally distributed by Qualcomm Atheros, Inc.
 * under proprietary terms before Copyright ownership was assigned
 * to the Linux Foundation.
 */

/*
 * Host WMI unified implementation
 */
#include "athdefs.h"
#include "osapi_linux.h"
#include "a_types.h"
#include "a_debug.h"
#include "ol_if_athvar.h"
#include "ol_defines.h"
#include "htc_api.h"
#include "htc_api.h"
#include "dbglog_host.h"
#include "wmi_unified_priv.h"
#include "wmi_unified_param.h"

#ifndef WMI_NON_TLV_SUPPORT
#include "wmi_tlv_helper.h"
#endif

#include <linux/debugfs.h>

/* This check for CONFIG_WIN temporary added due to redeclaration compilation
error in MCL. Error is caused due to inclusion of wmi.h in wmi_unified_api.h
which gets included here through ol_if_athvar.h. Eventually it is expected that
wmi.h will be removed from wmi_unified_api.h after cleanup, which will need
WMI_CMD_HDR to be defined here. */
#ifdef CONFIG_WIN
/* Copied from wmi.h */
#undef MS
#define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
#undef SM
#define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
#undef WO
#define WO(_f)      ((_f##_OFFSET) >> 2)

#undef GET_FIELD
#define GET_FIELD(_addr, _f) MS(*((A_UINT32 *)(_addr) + WO(_f)), _f)
#undef SET_FIELD
#define SET_FIELD(_addr, _f, _val)  \
	    (*((A_UINT32 *)(_addr) + WO(_f)) = \
		(*((A_UINT32 *)(_addr) + WO(_f)) & ~_f##_MASK) | SM(_val, _f))

#define WMI_GET_FIELD(_msg_buf, _msg_type, _f) \
	    GET_FIELD(_msg_buf, _msg_type ## _ ## _f)

#define WMI_SET_FIELD(_msg_buf, _msg_type, _f, _val) \
	    SET_FIELD(_msg_buf, _msg_type ## _ ## _f, _val)

#define WMI_EP_APASS           0x0
#define WMI_EP_LPASS           0x1
#define WMI_EP_SENSOR          0x2

/*
 *  * Control Path
 *   */
typedef PREPACK struct {
	A_UINT32	commandId:24,
			reserved:2, /* used for WMI endpoint ID */
			plt_priv:6; /* platform private */
} POSTPACK WMI_CMD_HDR;        /* used for commands and events */

#define WMI_CMD_HDR_COMMANDID_LSB           0
#define WMI_CMD_HDR_COMMANDID_MASK          0x00ffffff
#define WMI_CMD_HDR_COMMANDID_OFFSET        0x00000000
#define WMI_CMD_HDR_WMI_ENDPOINTID_MASK        0x03000000
#define WMI_CMD_HDR_WMI_ENDPOINTID_OFFSET      24
#define WMI_CMD_HDR_PLT_PRIV_LSB               24
#define WMI_CMD_HDR_PLT_PRIV_MASK              0xff000000
#define WMI_CMD_HDR_PLT_PRIV_OFFSET            0x00000000
/* end of copy wmi.h */
#endif /* CONFIG_WIN */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 3, 0))
/* TODO Cleanup this backported function */
static int qcacld_bp_seq_printf(struct seq_file *m, const char *f, ...)
{
	va_list args;

	va_start(args, f);
	seq_printf(m, f, args);
	va_end(args);

	return m->count;
}

#define seq_printf(m, fmt, ...) qcacld_bp_seq_printf((m), fmt, ##__VA_ARGS__)
#endif

#define WMI_MIN_HEAD_ROOM 64

#ifdef WMI_INTERFACE_EVENT_LOGGING
#ifndef MAX_WMI_INSTANCES
#ifdef CONFIG_MCL
#define MAX_WMI_INSTANCES 1
#else
#define MAX_WMI_INSTANCES 3
#endif
#define CUSTOM_MGMT_CMD_DATA_SIZE 4
#endif

#ifdef CONFIG_MCL
/* WMI commands */
uint32_t g_wmi_command_buf_idx = 0;
struct wmi_command_debug wmi_command_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY];

/* WMI commands TX completed */
uint32_t g_wmi_command_tx_cmp_buf_idx = 0;
struct wmi_command_debug
	wmi_command_tx_cmp_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY];

/* WMI events when processed */
uint32_t g_wmi_event_buf_idx = 0;
struct wmi_event_debug wmi_event_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY];

/* WMI events when queued */
uint32_t g_wmi_rx_event_buf_idx = 0;
struct wmi_event_debug wmi_rx_event_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY];
#endif

#define WMI_COMMAND_RECORD(h, a, b) {					\
	if (wmi_log_max_entry <=					\
		*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx))	\
		*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx) = 0;\
	((struct wmi_command_debug *)h->log_info.wmi_command_log_buf_info.buf)\
		[*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)]\
						.command = a;		\
	qdf_mem_copy(((struct wmi_command_debug *)h->log_info.		\
				wmi_command_log_buf_info.buf)		\
		[*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)].data,\
			b, wmi_record_max_length);			\
	((struct wmi_command_debug *)h->log_info.wmi_command_log_buf_info.buf)\
		[*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)].\
		time = qdf_get_log_timestamp();			\
	(*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx))++;	\
	h->log_info.wmi_command_log_buf_info.length++;			\
}

#define WMI_COMMAND_TX_CMP_RECORD(h, a, b) {				\
	if (wmi_log_max_entry <=					\
		*(h->log_info.wmi_command_tx_cmp_log_buf_info.p_buf_tail_idx))\
		*(h->log_info.wmi_command_tx_cmp_log_buf_info.		\
				p_buf_tail_idx) = 0;			\
	((struct wmi_command_debug *)h->log_info.			\
		wmi_command_tx_cmp_log_buf_info.buf)			\
		[*(h->log_info.wmi_command_tx_cmp_log_buf_info.		\
				p_buf_tail_idx)].			\
							command	= a;	\
	qdf_mem_copy(((struct wmi_command_debug *)h->log_info.		\
				wmi_command_tx_cmp_log_buf_info.buf)	\
		[*(h->log_info.wmi_command_tx_cmp_log_buf_info.		\
			p_buf_tail_idx)].				\
		data, b, wmi_record_max_length);			\
	((struct wmi_command_debug *)h->log_info.			\
		wmi_command_tx_cmp_log_buf_info.buf)			\
		[*(h->log_info.wmi_command_tx_cmp_log_buf_info.		\
				p_buf_tail_idx)].			\
		time = qdf_get_log_timestamp();				\
	(*(h->log_info.wmi_command_tx_cmp_log_buf_info.p_buf_tail_idx))++;\
	h->log_info.wmi_command_tx_cmp_log_buf_info.length++;		\
}

#define WMI_EVENT_RECORD(h, a, b) {					\
	if (wmi_log_max_entry <=					\
		*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx))	\
		*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx) = 0;\
	((struct wmi_event_debug *)h->log_info.wmi_event_log_buf_info.buf)\
		[*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)].	\
		event = a;						\
	qdf_mem_copy(((struct wmi_event_debug *)h->log_info.		\
				wmi_event_log_buf_info.buf)		\
		[*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)].data, b,\
		wmi_record_max_length);					\
	((struct wmi_event_debug *)h->log_info.wmi_event_log_buf_info.buf)\
		[*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)].time =\
		qdf_get_log_timestamp();				\
	(*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx))++;	\
	h->log_info.wmi_event_log_buf_info.length++;			\
}

#define WMI_RX_EVENT_RECORD(h, a, b) {					\
	if (wmi_log_max_entry <=					\
		*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx))\
		*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx) = 0;\
	((struct wmi_event_debug *)h->log_info.wmi_rx_event_log_buf_info.buf)\
		[*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx)].\
		event = a;						\
	qdf_mem_copy(((struct wmi_event_debug *)h->log_info.		\
				wmi_rx_event_log_buf_info.buf)		\
		[*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx)].\
			data, b, wmi_record_max_length);		\
	((struct wmi_event_debug *)h->log_info.wmi_rx_event_log_buf_info.buf)\
		[*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx)].\
		time =	qdf_get_log_timestamp();			\
	(*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx))++;	\
	h->log_info.wmi_rx_event_log_buf_info.length++;			\
}

#ifdef CONFIG_MCL
uint32_t g_wmi_mgmt_command_buf_idx = 0;
struct
wmi_command_debug wmi_mgmt_command_log_buffer[WMI_MGMT_EVENT_DEBUG_MAX_ENTRY];

/* wmi_mgmt commands TX completed */
uint32_t g_wmi_mgmt_command_tx_cmp_buf_idx = 0;
struct wmi_command_debug
wmi_mgmt_command_tx_cmp_log_buffer[WMI_MGMT_EVENT_DEBUG_MAX_ENTRY];

/* wmi_mgmt events when processed */
uint32_t g_wmi_mgmt_event_buf_idx = 0;
struct wmi_event_debug
wmi_mgmt_event_log_buffer[WMI_MGMT_EVENT_DEBUG_MAX_ENTRY];
#endif

#define WMI_MGMT_COMMAND_RECORD(h, a, b) {                              \
	if (wmi_mgmt_log_max_entry <=                                   \
		*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)) \
		*(h->log_info.wmi_mgmt_command_log_buf_info.		\
				p_buf_tail_idx) = 0;			\
	((struct wmi_command_debug *)h->log_info.                       \
		 wmi_mgmt_command_log_buf_info.buf)                     \
		[*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)].\
			command = a;                                    \
	qdf_mem_copy(((struct wmi_command_debug *)h->log_info.          \
				wmi_mgmt_command_log_buf_info.buf)      \
		[*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)].\
		data, b,                                                \
		wmi_record_max_length);                                	\
	((struct wmi_command_debug *)h->log_info.                       \
		 wmi_mgmt_command_log_buf_info.buf)                     \
		[*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)].\
			time =        qdf_get_log_timestamp();          \
	(*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx))++;\
	h->log_info.wmi_mgmt_command_log_buf_info.length++;             \
}

#define WMI_MGMT_COMMAND_TX_CMP_RECORD(h, a, b) {			\
	if (wmi_mgmt_log_max_entry <=					\
		*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.	\
			p_buf_tail_idx))				\
		*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.	\
			p_buf_tail_idx) = 0;				\
	((struct wmi_command_debug *)h->log_info.			\
			wmi_mgmt_command_tx_cmp_log_buf_info.buf)	\
		[*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.	\
				p_buf_tail_idx)].command = a;		\
	qdf_mem_copy(((struct wmi_command_debug *)h->log_info.		\
				wmi_mgmt_command_tx_cmp_log_buf_info.buf)\
		[*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.	\
			p_buf_tail_idx)].data, b,			\
			wmi_record_max_length);				\
	((struct wmi_command_debug *)h->log_info.			\
			wmi_mgmt_command_tx_cmp_log_buf_info.buf)	\
		[*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.	\
				p_buf_tail_idx)].time =			\
		qdf_get_log_timestamp();				\
	(*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.		\
			p_buf_tail_idx))++;				\
	h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.length++;	\
}

#define WMI_MGMT_EVENT_RECORD(h, a, b) {				\
	if (wmi_mgmt_log_max_entry <=					\
		*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx))\
		*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx) = 0;\
	((struct wmi_event_debug *)h->log_info.wmi_mgmt_event_log_buf_info.buf)\
		[*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx)]\
					.event = a;			\
	qdf_mem_copy(((struct wmi_event_debug *)h->log_info.		\
				wmi_mgmt_event_log_buf_info.buf)	\
		[*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx)].\
			data, b, wmi_record_max_length);		\
	((struct wmi_event_debug *)h->log_info.wmi_mgmt_event_log_buf_info.buf)\
		[*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx)].\
			time = qdf_get_log_timestamp();			\
	(*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx))++;	\
	h->log_info.wmi_mgmt_event_log_buf_info.length++;		\
}

/* These are defined to made it as module param, which can be configured */
uint32_t wmi_log_max_entry = WMI_EVENT_DEBUG_MAX_ENTRY;
uint32_t wmi_mgmt_log_max_entry = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY;
uint32_t wmi_record_max_length = WMI_EVENT_DEBUG_ENTRY_MAX_LENGTH;
uint32_t wmi_display_size = 100;

static uint8_t *wmi_id_to_name(uint32_t wmi_command);

/**
 * wmi_log_init() - Initialize WMI event logging
 * @wmi_handle: WMI handle.
 *
 * Return: Initialization status
 */
#ifdef CONFIG_MCL
static QDF_STATUS wmi_log_init(struct wmi_unified *wmi_handle)
{
	struct wmi_log_buf_t *cmd_log_buf =
			&wmi_handle->log_info.wmi_command_log_buf_info;
	struct wmi_log_buf_t *cmd_tx_cmpl_log_buf =
			&wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info;

	struct wmi_log_buf_t *event_log_buf =
			&wmi_handle->log_info.wmi_event_log_buf_info;
	struct wmi_log_buf_t *rx_event_log_buf =
			&wmi_handle->log_info.wmi_rx_event_log_buf_info;

	struct wmi_log_buf_t *mgmt_cmd_log_buf =
			&wmi_handle->log_info.wmi_mgmt_command_log_buf_info;
	struct wmi_log_buf_t *mgmt_cmd_tx_cmp_log_buf =
		&wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info;
	struct wmi_log_buf_t *mgmt_event_log_buf =
			&wmi_handle->log_info.wmi_mgmt_event_log_buf_info;

	/* WMI commands */
	cmd_log_buf->length = 0;
	cmd_log_buf->buf_tail_idx = 0;
	cmd_log_buf->buf = wmi_command_log_buffer;
	cmd_log_buf->p_buf_tail_idx = &g_wmi_command_buf_idx;
	cmd_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY;

	/* WMI commands TX completed */
	cmd_tx_cmpl_log_buf->length = 0;
	cmd_tx_cmpl_log_buf->buf_tail_idx = 0;
	cmd_tx_cmpl_log_buf->buf = wmi_command_tx_cmp_log_buffer;
	cmd_tx_cmpl_log_buf->p_buf_tail_idx = &g_wmi_command_tx_cmp_buf_idx;
	cmd_tx_cmpl_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY;

	/* WMI events when processed */
	event_log_buf->length = 0;
	event_log_buf->buf_tail_idx = 0;
	event_log_buf->buf = wmi_event_log_buffer;
	event_log_buf->p_buf_tail_idx = &g_wmi_event_buf_idx;
	event_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY;

	/* WMI events when queued */
	rx_event_log_buf->length = 0;
	rx_event_log_buf->buf_tail_idx = 0;
	rx_event_log_buf->buf = wmi_rx_event_log_buffer;
	rx_event_log_buf->p_buf_tail_idx = &g_wmi_rx_event_buf_idx;
	rx_event_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY;

	/* WMI Management commands */
	mgmt_cmd_log_buf->length = 0;
	mgmt_cmd_log_buf->buf_tail_idx = 0;
	mgmt_cmd_log_buf->buf = wmi_mgmt_command_log_buffer;
	mgmt_cmd_log_buf->p_buf_tail_idx = &g_wmi_mgmt_command_buf_idx;
	mgmt_cmd_log_buf->size = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY;

	/* WMI Management commands Tx completed*/
	mgmt_cmd_tx_cmp_log_buf->length = 0;
	mgmt_cmd_tx_cmp_log_buf->buf_tail_idx = 0;
	mgmt_cmd_tx_cmp_log_buf->buf = wmi_mgmt_command_tx_cmp_log_buffer;
	mgmt_cmd_tx_cmp_log_buf->p_buf_tail_idx =
		&g_wmi_mgmt_command_tx_cmp_buf_idx;
	mgmt_cmd_tx_cmp_log_buf->size = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY;

	/* WMI Management events when processed*/
	mgmt_event_log_buf->length = 0;
	mgmt_event_log_buf->buf_tail_idx = 0;
	mgmt_event_log_buf->buf = wmi_mgmt_event_log_buffer;
	mgmt_event_log_buf->p_buf_tail_idx = &g_wmi_mgmt_event_buf_idx;
	mgmt_event_log_buf->size = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY;

	qdf_spinlock_create(&wmi_handle->log_info.wmi_record_lock);
	wmi_handle->log_info.wmi_logging_enable = 1;

	return QDF_STATUS_SUCCESS;
}
#else
static QDF_STATUS wmi_log_init(struct wmi_unified *wmi_handle)
{
	struct wmi_log_buf_t *cmd_log_buf =
			&wmi_handle->log_info.wmi_command_log_buf_info;
	struct wmi_log_buf_t *cmd_tx_cmpl_log_buf =
			&wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info;

	struct wmi_log_buf_t *event_log_buf =
			&wmi_handle->log_info.wmi_event_log_buf_info;
	struct wmi_log_buf_t *rx_event_log_buf =
			&wmi_handle->log_info.wmi_rx_event_log_buf_info;

	struct wmi_log_buf_t *mgmt_cmd_log_buf =
			&wmi_handle->log_info.wmi_mgmt_command_log_buf_info;
	struct wmi_log_buf_t *mgmt_cmd_tx_cmp_log_buf =
		&wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info;
	struct wmi_log_buf_t *mgmt_event_log_buf =
			&wmi_handle->log_info.wmi_mgmt_event_log_buf_info;

	wmi_handle->log_info.wmi_logging_enable = 0;

	/* WMI commands */
	cmd_log_buf->length = 0;
	cmd_log_buf->buf_tail_idx = 0;
	cmd_log_buf->buf = (struct wmi_command_debug *) qdf_mem_malloc(
		wmi_log_max_entry * sizeof(struct wmi_command_debug));
	cmd_log_buf->size = wmi_log_max_entry;

	if (!cmd_log_buf->buf) {
		qdf_print("no memory for WMI command log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	cmd_log_buf->p_buf_tail_idx = &cmd_log_buf->buf_tail_idx;

	/* WMI commands TX completed */
	cmd_tx_cmpl_log_buf->length = 0;
	cmd_tx_cmpl_log_buf->buf_tail_idx = 0;
	cmd_tx_cmpl_log_buf->buf = (struct wmi_command_debug *) qdf_mem_malloc(
		wmi_log_max_entry * sizeof(struct wmi_command_debug));
	cmd_tx_cmpl_log_buf->size = wmi_log_max_entry;

	if (!cmd_tx_cmpl_log_buf->buf) {
		qdf_print("no memory for WMI Command Tx Complete log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	cmd_tx_cmpl_log_buf->p_buf_tail_idx =
		&cmd_tx_cmpl_log_buf->buf_tail_idx;

	/* WMI events when processed */
	event_log_buf->length = 0;
	event_log_buf->buf_tail_idx = 0;
	event_log_buf->buf = (struct wmi_event_debug *) qdf_mem_malloc(
		wmi_log_max_entry * sizeof(struct wmi_event_debug));
	event_log_buf->size = wmi_log_max_entry;

	if (!event_log_buf->buf) {
		qdf_print("no memory for WMI Event log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	event_log_buf->p_buf_tail_idx = &event_log_buf->buf_tail_idx;

	/* WMI events when queued */
	rx_event_log_buf->length = 0;
	rx_event_log_buf->buf_tail_idx = 0;
	rx_event_log_buf->buf = (struct wmi_event_debug *) qdf_mem_malloc(
		wmi_log_max_entry * sizeof(struct wmi_event_debug));
	rx_event_log_buf->size = wmi_log_max_entry;

	if (!rx_event_log_buf->buf) {
		qdf_print("no memory for WMI Event Rx log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	rx_event_log_buf->p_buf_tail_idx = &rx_event_log_buf->buf_tail_idx;

	/* WMI Management commands */
	mgmt_cmd_log_buf->length = 0;
	mgmt_cmd_log_buf->buf_tail_idx = 0;
	mgmt_cmd_log_buf->buf = (struct wmi_command_debug *) qdf_mem_malloc(
		wmi_mgmt_log_max_entry * sizeof(struct wmi_command_debug));
	mgmt_cmd_log_buf->size = wmi_mgmt_log_max_entry;

	if (!mgmt_cmd_log_buf->buf) {
		qdf_print("no memory for WMI Management Command log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	mgmt_cmd_log_buf->p_buf_tail_idx = &mgmt_cmd_log_buf->buf_tail_idx;

	/* WMI Management commands Tx completed*/
	mgmt_cmd_tx_cmp_log_buf->length = 0;
	mgmt_cmd_tx_cmp_log_buf->buf_tail_idx = 0;
	mgmt_cmd_tx_cmp_log_buf->buf = (struct wmi_command_debug *)
		qdf_mem_malloc(
		wmi_mgmt_log_max_entry *
		sizeof(struct wmi_command_debug));
	mgmt_cmd_tx_cmp_log_buf->size = wmi_mgmt_log_max_entry;

	if (!mgmt_cmd_tx_cmp_log_buf->buf) {
		qdf_print("no memory for WMI Management Command Tx complete log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	mgmt_cmd_tx_cmp_log_buf->p_buf_tail_idx =
		&mgmt_cmd_tx_cmp_log_buf->buf_tail_idx;

	/* WMI Management events when processed*/
	mgmt_event_log_buf->length = 0;
	mgmt_event_log_buf->buf_tail_idx = 0;

	mgmt_event_log_buf->buf = (struct wmi_event_debug *) qdf_mem_malloc(
		wmi_mgmt_log_max_entry *
		sizeof(struct wmi_event_debug));
	mgmt_event_log_buf->size = wmi_mgmt_log_max_entry;

	if (!mgmt_event_log_buf->buf) {
		qdf_print("no memory for WMI Management Event log buffer..\n");
		return QDF_STATUS_E_NOMEM;
	}
	mgmt_event_log_buf->p_buf_tail_idx = &mgmt_event_log_buf->buf_tail_idx;

	qdf_spinlock_create(&wmi_handle->log_info.wmi_record_lock);
	wmi_handle->log_info.wmi_logging_enable = 1;

	return QDF_STATUS_SUCCESS;
}
#endif

/**
 * wmi_log_buffer_free() - Free all dynamic allocated buffer memory for
 * event logging
 * @wmi_handle: WMI handle.
 *
 * Return: None
 */
#ifndef CONFIG_MCL
static inline void wmi_log_buffer_free(struct wmi_unified *wmi_handle)
{
	if (wmi_handle->log_info.wmi_command_log_buf_info.buf)
		qdf_mem_free(wmi_handle->log_info.wmi_command_log_buf_info.buf);
	if (wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info.buf)
		qdf_mem_free(
		wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info.buf);
	if (wmi_handle->log_info.wmi_event_log_buf_info.buf)
		qdf_mem_free(wmi_handle->log_info.wmi_event_log_buf_info.buf);
	if (wmi_handle->log_info.wmi_rx_event_log_buf_info.buf)
		qdf_mem_free(
			wmi_handle->log_info.wmi_rx_event_log_buf_info.buf);
	if (wmi_handle->log_info.wmi_mgmt_command_log_buf_info.buf)
		qdf_mem_free(
			wmi_handle->log_info.wmi_mgmt_command_log_buf_info.buf);
	if (wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.buf)
		qdf_mem_free(
		wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.buf);
	if (wmi_handle->log_info.wmi_mgmt_event_log_buf_info.buf)
		qdf_mem_free(
			wmi_handle->log_info.wmi_mgmt_event_log_buf_info.buf);
	wmi_handle->log_info.wmi_logging_enable = 0;
	qdf_spinlock_destroy(&wmi_handle->log_info.wmi_record_lock);
}
#else
static inline void wmi_log_buffer_free(struct wmi_unified *wmi_handle)
{
	/* Do Nothing */
}
#endif

/**
 * wmi_print_cmd_log_buffer() - an output agnostic wmi command log printer
 * @log_buffer: the command log buffer metadata of the buffer to print
 * @count: the maximum number of entries to print
 * @print: an abstract print method, e.g. a qdf_print() or seq_printf() wrapper
 * @print_priv: any data required by the print method, e.g. a file handle
 *
 * Return: None
 */
static void
wmi_print_cmd_log_buffer(struct wmi_log_buf_t *log_buffer, uint32_t count,
			 qdf_abstract_print *print, void *print_priv)
{
	static const int data_len =
		WMI_EVENT_DEBUG_ENTRY_MAX_LENGTH / sizeof(uint32_t);
	char str[128];
	uint32_t idx;

	if (count > log_buffer->size)
		count = log_buffer->size;
	if (count > log_buffer->length)
		count = log_buffer->length;

	/* subtract count from index, and wrap if necessary */
	idx = log_buffer->size + *log_buffer->p_buf_tail_idx - count;
	idx %= log_buffer->size;

	print(print_priv, "Time (seconds)      Cmd Id              Payload");
	while (count) {
		struct wmi_command_debug *cmd_log = (struct wmi_command_debug *)
			&((struct wmi_command_debug *)log_buffer->buf)[idx];
		uint64_t secs, usecs;
		int len = 0;
		int i;

		qdf_log_timestamp_to_secs(cmd_log->time, &secs, &usecs);
		len += scnprintf(str + len, sizeof(str) - len,
				 "% 8lld.%06lld    %6u (0x%06x)    ",
				 secs, usecs,
				 cmd_log->command, cmd_log->command);
		for (i = 0; i < data_len; ++i) {
			len += scnprintf(str + len, sizeof(str) - len,
					 "0x%08x ", cmd_log->data[i]);
		}

		print(print_priv, str);

		--count;
		++idx;
		if (idx >= log_buffer->size)
			idx = 0;
	}
}

/**
 * wmi_print_event_log_buffer() - an output agnostic wmi event log printer
 * @log_buffer: the event log buffer metadata of the buffer to print
 * @count: the maximum number of entries to print
 * @print: an abstract print method, e.g. a qdf_print() or seq_printf() wrapper
 * @print_priv: any data required by the print method, e.g. a file handle
 *
 * Return: None
 */
static void
wmi_print_event_log_buffer(struct wmi_log_buf_t *log_buffer, uint32_t count,
			   qdf_abstract_print *print, void *print_priv)
{
	static const int data_len =
		WMI_EVENT_DEBUG_ENTRY_MAX_LENGTH / sizeof(uint32_t);
	char str[128];
	uint32_t idx;

	if (count > log_buffer->size)
		count = log_buffer->size;
	if (count > log_buffer->length)
		count = log_buffer->length;

	/* subtract count from index, and wrap if necessary */
	idx = log_buffer->size + *log_buffer->p_buf_tail_idx - count;
	idx %= log_buffer->size;

	print(print_priv, "Time (seconds)      Event Id             Payload");
	while (count) {
		struct wmi_event_debug *event_log = (struct wmi_event_debug *)
			&((struct wmi_event_debug *)log_buffer->buf)[idx];
		uint64_t secs, usecs;
		int len = 0;
		int i;

		qdf_log_timestamp_to_secs(event_log->time, &secs, &usecs);
		len += scnprintf(str + len, sizeof(str) - len,
				 "% 8lld.%06lld    %6u (0x%06x)    ",
				 secs, usecs,
				 event_log->event, event_log->event);
		for (i = 0; i < data_len; ++i) {
			len += scnprintf(str + len, sizeof(str) - len,
					 "0x%08x ", event_log->data[i]);
		}

		print(print_priv, str);

		--count;
		++idx;
		if (idx >= log_buffer->size)
			idx = 0;
	}
}

inline void
wmi_print_cmd_log(wmi_unified_t wmi, uint32_t count,
		  qdf_abstract_print *print, void *print_priv)
{
	wmi_print_cmd_log_buffer(
		&wmi->log_info.wmi_command_log_buf_info,
		count, print, print_priv);
}

inline void
wmi_print_cmd_tx_cmp_log(wmi_unified_t wmi, uint32_t count,
			 qdf_abstract_print *print, void *print_priv)
{
	wmi_print_cmd_log_buffer(
		&wmi->log_info.wmi_command_tx_cmp_log_buf_info,
		count, print, print_priv);
}

inline void
wmi_print_mgmt_cmd_log(wmi_unified_t wmi, uint32_t count,
		       qdf_abstract_print *print, void *print_priv)
{
	wmi_print_cmd_log_buffer(
		&wmi->log_info.wmi_mgmt_command_log_buf_info,
		count, print, print_priv);
}

inline void
wmi_print_mgmt_cmd_tx_cmp_log(wmi_unified_t wmi, uint32_t count,
			      qdf_abstract_print *print, void *print_priv)
{
	wmi_print_cmd_log_buffer(
		&wmi->log_info.wmi_mgmt_command_tx_cmp_log_buf_info,
		count, print, print_priv);
}

inline void
wmi_print_event_log(wmi_unified_t wmi, uint32_t count,
		    qdf_abstract_print *print, void *print_priv)
{
	wmi_print_event_log_buffer(
		&wmi->log_info.wmi_event_log_buf_info,
		count, print, print_priv);
}

inline void
wmi_print_rx_event_log(wmi_unified_t wmi, uint32_t count,
		       qdf_abstract_print *print, void *print_priv)
{
	wmi_print_event_log_buffer(
		&wmi->log_info.wmi_rx_event_log_buf_info,
		count, print, print_priv);
}

inline void
wmi_print_mgmt_event_log(wmi_unified_t wmi, uint32_t count,
			 qdf_abstract_print *print, void *print_priv)
{
	wmi_print_event_log_buffer(
		&wmi->log_info.wmi_mgmt_event_log_buf_info,
		count, print, print_priv);
}

#ifdef CONFIG_MCL
const int8_t * const debugfs_dir[MAX_WMI_INSTANCES] = {"WMI0"};
#else
const int8_t * const debugfs_dir[MAX_WMI_INSTANCES] = {"WMI0", "WMI1", "WMI2"};
#endif

/* debugfs routines*/

/**
 * debug_wmi_##func_base##_show() - debugfs functions to display content of
 * command and event buffers. Macro uses max buffer length to display
 * buffer when it is wraparound.
 *
 * @m: debugfs handler to access wmi_handle
 * @v: Variable arguments (not used)
 *
 * Return: Length of characters printed
 */
#define GENERATE_COMMAND_DEBUG_SHOW_FUNCS(func_base, wmi_ring_size)	\
	static int debug_wmi_##func_base##_show(struct seq_file *m,	\
						void *v)		\
	{								\
		wmi_unified_t wmi_handle = (wmi_unified_t) m->private;	\
		struct wmi_log_buf_t *wmi_log =				\
			&wmi_handle->log_info.wmi_##func_base##_buf_info;\
		int pos, nread, outlen;					\
		int i;							\
									\
		qdf_spin_lock(&wmi_handle->log_info.wmi_record_lock);	\
		if (!wmi_log->length) {					\
			qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);\
			return seq_printf(m,				\
			"no elements to read from ring buffer!\n");	\
		}							\
									\
		if (wmi_log->length <= wmi_ring_size)			\
			nread = wmi_log->length;			\
		else							\
			nread = wmi_ring_size;				\
									\
		if (*(wmi_log->p_buf_tail_idx) == 0)			\
			/* tail can be 0 after wrap-around */		\
			pos = wmi_ring_size - 1;			\
		else							\
			pos = *(wmi_log->p_buf_tail_idx) - 1;		\
									\
		outlen = seq_printf(m, "Length = %d\n", wmi_log->length);\
		qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);	\
		while (nread--) {					\
			struct wmi_command_debug *wmi_record;		\
									\
			wmi_record = (struct wmi_command_debug *)	\
			&(((struct wmi_command_debug *)wmi_log->buf)[pos]);\
			outlen += seq_printf(m, "CMD ID = %x\n",	\
				(wmi_record->command));			\
			outlen += seq_printf(m, "CMD = ");		\
			for (i = 0; i < (wmi_record_max_length/		\
					sizeof(uint32_t)); i++)		\
				outlen += seq_printf(m, "%x ",		\
					wmi_record->data[i]);		\
			outlen += seq_printf(m, "\n");			\
									\
			if (pos == 0)					\
				pos = wmi_ring_size - 1;		\
			else						\
				pos--;					\
		}							\
									\
		return outlen;						\
	}								\

#define GENERATE_EVENT_DEBUG_SHOW_FUNCS(func_base, wmi_ring_size)	\
	static int debug_wmi_##func_base##_show(struct seq_file *m,	\
						void *v)		\
	{								\
		wmi_unified_t wmi_handle = (wmi_unified_t) m->private;	\
		struct wmi_log_buf_t *wmi_log =				\
			&wmi_handle->log_info.wmi_##func_base##_buf_info;\
		int pos, nread, outlen;					\
		int i;							\
									\
		qdf_spin_lock(&wmi_handle->log_info.wmi_record_lock);	\
		if (!wmi_log->length) {					\
			qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);\
			return seq_printf(m,				\
			"no elements to read from ring buffer!\n");	\
		}							\
									\
		if (wmi_log->length <= wmi_ring_size)			\
			nread = wmi_log->length;			\
		else							\
			nread = wmi_ring_size;				\
									\
		if (*(wmi_log->p_buf_tail_idx) == 0)			\
			/* tail can be 0 after wrap-around */		\
			pos = wmi_ring_size - 1;			\
		else							\
			pos = *(wmi_log->p_buf_tail_idx) - 1;		\
									\
		outlen = seq_printf(m, "Length = %d\n", wmi_log->length);\
		qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);	\
		while (nread--) {					\
			struct wmi_event_debug *wmi_record;		\
									\
			wmi_record = (struct wmi_event_debug *)		\
			&(((struct wmi_event_debug *)wmi_log->buf)[pos]);\
			outlen += seq_printf(m, "Event ID = %x\n",	\
				(wmi_record->event));			\
			outlen += seq_printf(m, "CMD = ");		\
			for (i = 0; i < (wmi_record_max_length/		\
					sizeof(uint32_t)); i++)		\
				outlen += seq_printf(m, "%x ",		\
					wmi_record->data[i]);		\
			outlen += seq_printf(m, "\n");			\
									\
			if (pos == 0)					\
				pos = wmi_ring_size - 1;		\
			else						\
				pos--;					\
		}							\
									\
		return outlen;						\
	}

GENERATE_COMMAND_DEBUG_SHOW_FUNCS(command_log, wmi_display_size);
GENERATE_COMMAND_DEBUG_SHOW_FUNCS(command_tx_cmp_log, wmi_display_size);
GENERATE_EVENT_DEBUG_SHOW_FUNCS(event_log, wmi_display_size);
GENERATE_EVENT_DEBUG_SHOW_FUNCS(rx_event_log, wmi_display_size);
GENERATE_COMMAND_DEBUG_SHOW_FUNCS(mgmt_command_log, wmi_display_size);
GENERATE_COMMAND_DEBUG_SHOW_FUNCS(mgmt_command_tx_cmp_log,
					wmi_display_size);
GENERATE_EVENT_DEBUG_SHOW_FUNCS(mgmt_event_log, wmi_display_size);

/**
 * debug_wmi_enable_show() - debugfs functions to display enable state of
 * wmi logging feature.
 *
 * @m: debugfs handler to access wmi_handle
 * @v: Variable arguments (not used)
 *
 * Return: always 1
 */
static int debug_wmi_enable_show(struct seq_file *m, void *v)
{
	wmi_unified_t wmi_handle = (wmi_unified_t) m->private;

	return seq_printf(m, "%d\n", wmi_handle->log_info.wmi_logging_enable);

}

/**
 * debug_wmi_log_size_show() - debugfs functions to display configured size of
 * wmi logging command/event buffer and management command/event buffer.
 *
 * @m: debugfs handler to access wmi_handle
 * @v: Variable arguments (not used)
 *
 * Return: Length of characters printed
 */
static int debug_wmi_log_size_show(struct seq_file *m, void *v)
{

	seq_printf(m, "WMI command/event log max size:%d\n", wmi_log_max_entry);
	return seq_printf(m, "WMI management command/events log max size:%d\n",
				wmi_mgmt_log_max_entry);
}

/**
 * debug_wmi_##func_base##_write() - debugfs functions to clear
 * wmi logging command/event buffer and management command/event buffer.
 *
 * @file: file handler to access wmi_handle
 * @buf: received data buffer
 * @count: length of received buffer
 * @ppos: Not used
 *
 * Return: count
 */
#define GENERATE_DEBUG_WRITE_FUNCS(func_base, wmi_ring_size, wmi_record_type)\
	static ssize_t debug_wmi_##func_base##_write(struct file *file,	\
				const char __user *buf,			\
				size_t count, loff_t *ppos)		\
	{								\
		int k, ret;						\
		wmi_unified_t wmi_handle =				\
			((struct seq_file *)file->private_data)->private;\
		struct wmi_log_buf_t *wmi_log = &wmi_handle->log_info.	\
				wmi_##func_base##_buf_info;		\
									\
		ret = sscanf(buf, "%d", &k);				\
		if ((ret != 1) || (k != 0)) {				\
			qdf_print("Wrong input, echo 0 to clear the wmi	buffer\n");\
			return -EINVAL;					\
		}							\
									\
		qdf_spin_lock(&wmi_handle->log_info.wmi_record_lock);	\
		qdf_mem_zero(wmi_log->buf, wmi_ring_size *		\
				sizeof(struct wmi_record_type));	\
		wmi_log->length = 0;					\
		*(wmi_log->p_buf_tail_idx) = 0;				\
		qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);	\
									\
		return count;						\
	}

GENERATE_DEBUG_WRITE_FUNCS(command_log, wmi_log_max_entry,
					wmi_command_debug);
GENERATE_DEBUG_WRITE_FUNCS(command_tx_cmp_log, wmi_log_max_entry,
					wmi_command_debug);
GENERATE_DEBUG_WRITE_FUNCS(event_log, wmi_log_max_entry,
					wmi_event_debug);
GENERATE_DEBUG_WRITE_FUNCS(rx_event_log, wmi_log_max_entry,
					wmi_event_debug);
GENERATE_DEBUG_WRITE_FUNCS(mgmt_command_log, wmi_mgmt_log_max_entry,
					wmi_command_debug);
GENERATE_DEBUG_WRITE_FUNCS(mgmt_command_tx_cmp_log,
		wmi_mgmt_log_max_entry, wmi_command_debug);
GENERATE_DEBUG_WRITE_FUNCS(mgmt_event_log, wmi_mgmt_log_max_entry,
					wmi_event_debug);

/**
 * debug_wmi_enable_write() - debugfs functions to enable/disable
 * wmi logging feature.
 *
 * @file: file handler to access wmi_handle
 * @buf: received data buffer
 * @count: length of received buffer
 * @ppos: Not used
 *
 * Return: count
 */
static ssize_t debug_wmi_enable_write(struct file *file, const char __user *buf,
					size_t count, loff_t *ppos)
{
	wmi_unified_t wmi_handle =
		((struct seq_file *)file->private_data)->private;
	int k, ret;

	ret = sscanf(buf, "%d", &k);
	if ((ret != 1) || ((k != 0) && (k != 1)))
		return -EINVAL;

	wmi_handle->log_info.wmi_logging_enable = k;
	return count;
}

/**
 * debug_wmi_log_size_write() - reserved.
 *
 * @file: file handler to access wmi_handle
 * @buf: received data buffer
 * @count: length of received buffer
 * @ppos: Not used
 *
 * Return: count
 */
static ssize_t debug_wmi_log_size_write(struct file *file,
		const char __user *buf, size_t count, loff_t *ppos)
{
	return -EINVAL;
}

/* Structure to maintain debug information */
struct wmi_debugfs_info {
	const char *name;
	struct dentry *de[MAX_WMI_INSTANCES];
	const struct file_operations *ops;
};

#define DEBUG_FOO(func_base) { .name = #func_base,			\
	.ops = &debug_##func_base##_ops }

/**
 * debug_##func_base##_open() - Open debugfs entry for respective command
 * and event buffer.
 *
 * @inode: node for debug dir entry
 * @file: file handler
 *
 * Return: open status
 */
#define GENERATE_DEBUG_STRUCTS(func_base)				\
	static int debug_##func_base##_open(struct inode *inode,	\
						struct file *file)	\
	{								\
		return single_open(file, debug_##func_base##_show,	\
				inode->i_private);			\
	}								\
									\
									\
	static struct file_operations debug_##func_base##_ops = {	\
		.open		= debug_##func_base##_open,		\
		.read		= seq_read,				\
		.llseek		= seq_lseek,				\
		.write		= debug_##func_base##_write,		\
		.release	= single_release,			\
	};

GENERATE_DEBUG_STRUCTS(wmi_command_log);
GENERATE_DEBUG_STRUCTS(wmi_command_tx_cmp_log);
GENERATE_DEBUG_STRUCTS(wmi_event_log);
GENERATE_DEBUG_STRUCTS(wmi_rx_event_log);
GENERATE_DEBUG_STRUCTS(wmi_mgmt_command_log);
GENERATE_DEBUG_STRUCTS(wmi_mgmt_command_tx_cmp_log);
GENERATE_DEBUG_STRUCTS(wmi_mgmt_event_log);
GENERATE_DEBUG_STRUCTS(wmi_enable);
GENERATE_DEBUG_STRUCTS(wmi_log_size);

struct wmi_debugfs_info wmi_debugfs_infos[] = {
	DEBUG_FOO(wmi_command_log),
	DEBUG_FOO(wmi_command_tx_cmp_log),
	DEBUG_FOO(wmi_event_log),
	DEBUG_FOO(wmi_rx_event_log),
	DEBUG_FOO(wmi_mgmt_command_log),
	DEBUG_FOO(wmi_mgmt_command_tx_cmp_log),
	DEBUG_FOO(wmi_mgmt_event_log),
	DEBUG_FOO(wmi_enable),
	DEBUG_FOO(wmi_log_size),
};

#define NUM_DEBUG_INFOS (sizeof(wmi_debugfs_infos) /			\
		sizeof(wmi_debugfs_infos[0]))

/**
 * wmi_debugfs_create() - Create debug_fs entry for wmi logging.
 *
 * @wmi_handle: wmi handle
 * @par_entry: debug directory entry
 * @id: Index to debug info data array
 *
 * Return: none
 */
static void wmi_debugfs_create(wmi_unified_t wmi_handle,
		struct dentry *par_entry, int id)
{
	int i;

	if (par_entry == NULL || (id < 0) || (id >= MAX_WMI_INSTANCES))
		goto out;

	for (i = 0; i < NUM_DEBUG_INFOS; ++i) {

		wmi_debugfs_infos[i].de[id] = debugfs_create_file(
				wmi_debugfs_infos[i].name, 0644, par_entry,
				wmi_handle, wmi_debugfs_infos[i].ops);

		if (wmi_debugfs_infos[i].de[id] == NULL) {
			qdf_print("%s: debug Entry creation failed!\n",
					__func__);
			goto out;
		}
	}

	return;

out:
	qdf_print("%s: debug Entry creation failed!\n", __func__);
	wmi_log_buffer_free(wmi_handle);
	return;
}

/**
 * wmi_debugfs_remove() - Remove debugfs entry for wmi logging.
 * @wmi_handle: wmi handle
 * @dentry: debugfs directory entry
 * @id: Index to debug info data array
 *
 * Return: none
 */
static void wmi_debugfs_remove(wmi_unified_t wmi_handle)
{
	int i;
	struct dentry *dentry = wmi_handle->log_info.wmi_log_debugfs_dir;
	int id = wmi_handle->log_info.wmi_instance_id;

	if (dentry && (!(id < 0) || (id >= MAX_WMI_INSTANCES))) {
		for (i = 0; i < NUM_DEBUG_INFOS; ++i) {
			if (wmi_debugfs_infos[i].de[id])
				wmi_debugfs_infos[i].de[id] = NULL;
		}
	}

	if (dentry)
		debugfs_remove_recursive(dentry);
}

/**
 * wmi_debugfs_init() - debugfs functions to create debugfs directory and to
 * create debugfs enteries.
 *
 * @h: wmi handler
 *
 * Return: init status
 */
static QDF_STATUS wmi_debugfs_init(wmi_unified_t wmi_handle)
{
	static int wmi_index;

	if (wmi_index < MAX_WMI_INSTANCES)
		wmi_handle->log_info.wmi_log_debugfs_dir =
			debugfs_create_dir(debugfs_dir[wmi_index], NULL);

	if (wmi_handle->log_info.wmi_log_debugfs_dir == NULL) {
		qdf_print("error while creating debugfs dir for %s\n",
				debugfs_dir[wmi_index]);
		return QDF_STATUS_E_FAILURE;
	}

	wmi_debugfs_create(wmi_handle, wmi_handle->log_info.wmi_log_debugfs_dir,
				wmi_index);
	wmi_handle->log_info.wmi_instance_id = wmi_index++;

	return QDF_STATUS_SUCCESS;
}

/**
 * wmi_mgmt_cmd_record() - Wrapper function for mgmt command logging macro
 *
 * @wmi_handle: wmi handle
 * @cmd: mgmt command
 * @header: pointer to 802.11 header
 * @vdev_id: vdev id
 * @chanfreq: channel frequency
 *
 * Return: none
 */
void wmi_mgmt_cmd_record(wmi_unified_t wmi_handle, uint32_t cmd,
			void *header, uint32_t vdev_id, uint32_t chanfreq)
{

	uint32_t data[CUSTOM_MGMT_CMD_DATA_SIZE];

	data[0] = ((struct wmi_command_header *)header)->type;
	data[1] = ((struct wmi_command_header *)header)->sub_type;
	data[2] = vdev_id;
	data[3] = chanfreq;

	qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock);

	WMI_MGMT_COMMAND_RECORD(wmi_handle, cmd, data);

	qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock);
}
#else
/**
 * wmi_debugfs_remove() - Remove debugfs entry for wmi logging.
 * @wmi_handle: wmi handle
 * @dentry: debugfs directory entry
 * @id: Index to debug info data array
 *
 * Return: none
 */
static void wmi_debugfs_remove(wmi_unified_t wmi_handle) { }
void wmi_mgmt_cmd_record(wmi_unified_t wmi_handle, uint32_t cmd,
			void *header, uint32_t vdev_id, uint32_t chanfreq) { }
static inline void wmi_log_buffer_free(struct wmi_unified *wmi_handle) { }
#endif /*WMI_INTERFACE_EVENT_LOGGING */

int wmi_get_host_credits(wmi_unified_t wmi_handle);
/* WMI buffer APIs */

#ifdef MEMORY_DEBUG
wmi_buf_t
wmi_buf_alloc_debug(wmi_unified_t wmi_handle, uint16_t len, uint8_t *file_name,
			uint32_t line_num)
{
	wmi_buf_t wmi_buf;

	if (roundup(len + WMI_MIN_HEAD_ROOM, 4) > wmi_handle->max_msg_len) {
		QDF_ASSERT(0);
		return NULL;
	}

	wmi_buf = qdf_nbuf_alloc_debug(NULL,
					roundup(len + WMI_MIN_HEAD_ROOM, 4),
					WMI_MIN_HEAD_ROOM, 4, false, file_name,
					line_num);

	if (!wmi_buf)
		return NULL;

	/* Clear the wmi buffer */
	OS_MEMZERO(qdf_nbuf_data(wmi_buf), len);

	/*
	 * Set the length of the buffer to match the allocation size.
	 */
	qdf_nbuf_set_pktlen(wmi_buf, len);

	return wmi_buf;
}

void wmi_buf_free(wmi_buf_t net_buf)
{
	qdf_nbuf_free(net_buf);
}
#else
wmi_buf_t wmi_buf_alloc(wmi_unified_t wmi_handle, uint16_t len)
{
	wmi_buf_t wmi_buf;

	if (roundup(len + WMI_MIN_HEAD_ROOM, 4) > wmi_handle->max_msg_len) {
		QDF_ASSERT(0);
		return NULL;
	}

	wmi_buf = qdf_nbuf_alloc(NULL, roundup(len + WMI_MIN_HEAD_ROOM, 4),
				WMI_MIN_HEAD_ROOM, 4, false);
	if (!wmi_buf)
		return NULL;

	/* Clear the wmi buffer */
	OS_MEMZERO(qdf_nbuf_data(wmi_buf), len);

	/*
	 * Set the length of the buffer to match the allocation size.
	 */
	qdf_nbuf_set_pktlen(wmi_buf, len);
	return wmi_buf;
}

void wmi_buf_free(wmi_buf_t net_buf)
{
	qdf_nbuf_free(net_buf);
}
#endif

/**
 * wmi_get_max_msg_len() - get maximum WMI message length
 * @wmi_handle: WMI handle.
 *
 * This function returns the maximum WMI message length
 *
 * Return: maximum WMI message length
 */
uint16_t wmi_get_max_msg_len(wmi_unified_t wmi_handle)
{
	return wmi_handle->max_msg_len - WMI_MIN_HEAD_ROOM;
}

#ifdef CONFIG_MCL
static uint8_t *wmi_id_to_name(uint32_t wmi_command)
{
	switch (wmi_command) {
		/* initialize the wlan sub system */
		CASE_RETURN_STRING(WMI_INIT_CMDID);

		/* Scan specific commands */

		/* start scan request to FW  */
		CASE_RETURN_STRING(WMI_START_SCAN_CMDID);
		/* stop scan request to FW  */
		CASE_RETURN_STRING(WMI_STOP_SCAN_CMDID);
		/* full list of channels as defined by the regulatory
		 * that will be used by scanner   */
		CASE_RETURN_STRING(WMI_SCAN_CHAN_LIST_CMDID);
		/* overwrite default priority table in scan scheduler   */
		CASE_RETURN_STRING(WMI_SCAN_SCH_PRIO_TBL_CMDID);
		/* This command to adjust the priority and min.max_rest_time
		 * of an on ongoing scan request.
		 */
		CASE_RETURN_STRING(WMI_SCAN_UPDATE_REQUEST_CMDID);

		/* PDEV(physical device) specific commands */
		/* set regulatorty ctl id used by FW to determine the exact
		 * ctl power limits */
		CASE_RETURN_STRING(WMI_PDEV_SET_REGDOMAIN_CMDID);
		/* set channel. mainly used for supporting monitor mode */
		CASE_RETURN_STRING(WMI_PDEV_SET_CHANNEL_CMDID);
		/* set pdev specific parameters */
		CASE_RETURN_STRING(WMI_PDEV_SET_PARAM_CMDID);
		/* enable packet log */
		CASE_RETURN_STRING(WMI_PDEV_PKTLOG_ENABLE_CMDID);
		/* disable packet log*/
		CASE_RETURN_STRING(WMI_PDEV_PKTLOG_DISABLE_CMDID);
		/* set wmm parameters */
		CASE_RETURN_STRING(WMI_PDEV_SET_WMM_PARAMS_CMDID);
		/* set HT cap ie that needs to be carried probe requests
		 * HT/VHT channels */
		CASE_RETURN_STRING(WMI_PDEV_SET_HT_CAP_IE_CMDID);
		/* set VHT cap ie that needs to be carried on probe
		 * requests on VHT channels */
		CASE_RETURN_STRING(WMI_PDEV_SET_VHT_CAP_IE_CMDID);

		/* Command to send the DSCP-to-TID map to the target */
		CASE_RETURN_STRING(WMI_PDEV_SET_DSCP_TID_MAP_CMDID);
		/* set quiet ie parameters. primarily used in AP mode */
		CASE_RETURN_STRING(WMI_PDEV_SET_QUIET_MODE_CMDID);
		/* Enable/Disable Green AP Power Save  */
		CASE_RETURN_STRING(WMI_PDEV_GREEN_AP_PS_ENABLE_CMDID);
		/* get TPC config for the current operating channel */
		CASE_RETURN_STRING(WMI_PDEV_GET_TPC_CONFIG_CMDID);

		/* set the base MAC address for the physical device before
		 * a VDEV is created. For firmware that does not support
		 * this feature and this command, the pdev MAC address will
		 * not be changed. */
		CASE_RETURN_STRING(WMI_PDEV_SET_BASE_MACADDR_CMDID);

		/* eeprom content dump , the same to bdboard data */
		CASE_RETURN_STRING(WMI_PDEV_DUMP_CMDID);

		/* VDEV(virtual device) specific commands */
		/* vdev create */
		CASE_RETURN_STRING(WMI_VDEV_CREATE_CMDID);
		/* vdev delete */
		CASE_RETURN_STRING(WMI_VDEV_DELETE_CMDID);
		/* vdev start request */
		CASE_RETURN_STRING(WMI_VDEV_START_REQUEST_CMDID);
		/* vdev restart request (RX only, NO TX, used for CAC period)*/
		CASE_RETURN_STRING(WMI_VDEV_RESTART_REQUEST_CMDID);
		/* vdev up request */
		CASE_RETURN_STRING(WMI_VDEV_UP_CMDID);
		/* vdev stop request */
		CASE_RETURN_STRING(WMI_VDEV_STOP_CMDID);
		/* vdev down request */
		CASE_RETURN_STRING(WMI_VDEV_DOWN_CMDID);
		/* set a vdev param */
		CASE_RETURN_STRING(WMI_VDEV_SET_PARAM_CMDID);
		/* set a key (used for setting per peer unicast
		 * and per vdev multicast) */
		CASE_RETURN_STRING(WMI_VDEV_INSTALL_KEY_CMDID);

		/* wnm sleep mode command */
		CASE_RETURN_STRING(WMI_VDEV_WNM_SLEEPMODE_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_WMM_ADDTS_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_WMM_DELTS_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_SET_WMM_PARAMS_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_SET_GTX_PARAMS_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_IPSEC_NATKEEPALIVE_FILTER_CMDID);

		CASE_RETURN_STRING(WMI_VDEV_PLMREQ_START_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_PLMREQ_STOP_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_TSF_TSTAMP_ACTION_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_SET_IE_CMDID);

		/* peer specific commands */

		/** create a peer */
		CASE_RETURN_STRING(WMI_PEER_CREATE_CMDID);
		/** delete a peer */
		CASE_RETURN_STRING(WMI_PEER_DELETE_CMDID);
		/** flush specific  tid queues of a peer */
		CASE_RETURN_STRING(WMI_PEER_FLUSH_TIDS_CMDID);
		/** set a parameter of a peer */
		CASE_RETURN_STRING(WMI_PEER_SET_PARAM_CMDID);
		/* set peer to associated state. will cary all parameters
		 * determined during assocication time */
		CASE_RETURN_STRING(WMI_PEER_ASSOC_CMDID);
		/* add a wds  (4 address ) entry. used only for testing
		 * WDS feature on AP products */
		CASE_RETURN_STRING(WMI_PEER_ADD_WDS_ENTRY_CMDID);
		/* remove wds  (4 address ) entry. used only for testing WDS
		 * feature on AP products */
		CASE_RETURN_STRING(WMI_PEER_REMOVE_WDS_ENTRY_CMDID);
		/* set up mcast info for multicast to unicast conversion */
		CASE_RETURN_STRING(WMI_PEER_MCAST_GROUP_CMDID);
		/* request peer info from FW to get PEER_INFO_EVENTID */
		CASE_RETURN_STRING(WMI_PEER_INFO_REQ_CMDID);

		/* beacon/management specific commands */

		/* transmit beacon by reference. used for transmitting beacon
		 * on low latency interface like pcie */
		CASE_RETURN_STRING(WMI_BCN_TX_CMDID);
		/* transmit beacon by value */
		CASE_RETURN_STRING(WMI_PDEV_SEND_BCN_CMDID);
		/* set the beacon template. used in beacon offload mode to setup
		 * the common beacon template with the FW to be used by FW to
		 * generate beacons */
		CASE_RETURN_STRING(WMI_BCN_TMPL_CMDID);
		/* set beacon filter with FW */
		CASE_RETURN_STRING(WMI_BCN_FILTER_RX_CMDID);
		/* enable/disable filtering of probe requests in the firmware */
		CASE_RETURN_STRING(WMI_PRB_REQ_FILTER_RX_CMDID);
		/* transmit management frame by value. will be deprecated */
		CASE_RETURN_STRING(WMI_MGMT_TX_CMDID);
		/* set the probe response template. used in beacon offload mode
		 * to setup the common probe response template with the FW to
		 * be used by FW to generate probe responses */
		CASE_RETURN_STRING(WMI_PRB_TMPL_CMDID);

		/* commands to directly control ba negotiation directly from
		 * host. only used in test mode */

		/* turn off FW Auto addba mode and let host control addba */
		CASE_RETURN_STRING(WMI_ADDBA_CLEAR_RESP_CMDID);
		/* send add ba request */
		CASE_RETURN_STRING(WMI_ADDBA_SEND_CMDID);
		CASE_RETURN_STRING(WMI_ADDBA_STATUS_CMDID);
		/* send del ba */
		CASE_RETURN_STRING(WMI_DELBA_SEND_CMDID);
		/* set add ba response will be used by FW to generate
		 * addba response*/
		CASE_RETURN_STRING(WMI_ADDBA_SET_RESP_CMDID);
		/* send single VHT MPDU with AMSDU */
		CASE_RETURN_STRING(WMI_SEND_SINGLEAMSDU_CMDID);

		/* Station power save specific config */
		/* enable/disable station powersave */
		CASE_RETURN_STRING(WMI_STA_POWERSAVE_MODE_CMDID);
		/* set station power save specific parameter */
		CASE_RETURN_STRING(WMI_STA_POWERSAVE_PARAM_CMDID);
		/* set station mimo powersave mode */
		CASE_RETURN_STRING(WMI_STA_MIMO_PS_MODE_CMDID);

		/* DFS-specific commands */
		/* enable DFS (radar detection)*/
		CASE_RETURN_STRING(WMI_PDEV_DFS_ENABLE_CMDID);
		/* disable DFS (radar detection)*/
		CASE_RETURN_STRING(WMI_PDEV_DFS_DISABLE_CMDID);
		/* enable DFS phyerr/parse filter offload */
		CASE_RETURN_STRING(WMI_DFS_PHYERR_FILTER_ENA_CMDID);
		/* enable DFS phyerr/parse filter offload */
		CASE_RETURN_STRING(WMI_DFS_PHYERR_FILTER_DIS_CMDID);

		/* Roaming specific  commands */
		/* set roam scan mode */
		CASE_RETURN_STRING(WMI_ROAM_SCAN_MODE);
		/* set roam scan rssi threshold below which roam
		 * scan is enabled  */
		CASE_RETURN_STRING(WMI_ROAM_SCAN_RSSI_THRESHOLD);
		/* set roam scan period for periodic roam scan mode  */
		CASE_RETURN_STRING(WMI_ROAM_SCAN_PERIOD);
		/* set roam scan trigger rssi change threshold   */
		CASE_RETURN_STRING(WMI_ROAM_SCAN_RSSI_CHANGE_THRESHOLD);
		/* set roam AP profile   */
		CASE_RETURN_STRING(WMI_ROAM_AP_PROFILE);
		/* set channel list for roam scans */
		CASE_RETURN_STRING(WMI_ROAM_CHAN_LIST);
		/* offload scan specific commands */
		/* set offload scan AP profile   */
		CASE_RETURN_STRING(WMI_OFL_SCAN_ADD_AP_PROFILE);
		/* remove offload scan AP profile   */
		CASE_RETURN_STRING(WMI_OFL_SCAN_REMOVE_AP_PROFILE);
		/* set offload scan period   */
		CASE_RETURN_STRING(WMI_OFL_SCAN_PERIOD);

		/* P2P specific commands */
		/* set P2P device info. FW will used by FW to create P2P IE
		 * to be carried in probe response generated during p2p listen
		 * and for p2p discoverability  */
		CASE_RETURN_STRING(WMI_P2P_DEV_SET_DEVICE_INFO);
		/* enable/disable p2p discoverability on STA/AP VDEVs  */
		CASE_RETURN_STRING(WMI_P2P_DEV_SET_DISCOVERABILITY);
		/* set p2p ie to be carried in beacons generated by FW for GO */
		CASE_RETURN_STRING(WMI_P2P_GO_SET_BEACON_IE);
		/* set p2p ie to be carried in probe response frames generated
		 * by FW for GO  */
		CASE_RETURN_STRING(WMI_P2P_GO_SET_PROBE_RESP_IE);
		/* set the vendor specific p2p ie data.
		 * FW will use this to parse the P2P NoA
		 * attribute in the beacons/probe responses received.
		 */
		CASE_RETURN_STRING(WMI_P2P_SET_VENDOR_IE_DATA_CMDID);
		/* set the configure of p2p find offload */
		CASE_RETURN_STRING(WMI_P2P_DISC_OFFLOAD_CONFIG_CMDID);
		/* set the vendor specific p2p ie data for p2p find offload */
		CASE_RETURN_STRING(WMI_P2P_DISC_OFFLOAD_APPIE_CMDID);
		/* set the BSSID/device name pattern of p2p find offload */
		CASE_RETURN_STRING(WMI_P2P_DISC_OFFLOAD_PATTERN_CMDID);
		/* set OppPS related parameters **/
		CASE_RETURN_STRING(WMI_P2P_SET_OPPPS_PARAM_CMDID);

		/* AP power save specific config
		 * set AP power save specific param */
		CASE_RETURN_STRING(WMI_AP_PS_PEER_PARAM_CMDID);
		/* set AP UAPSD coex pecific param */
		CASE_RETURN_STRING(WMI_AP_PS_PEER_UAPSD_COEX_CMDID);

		/* Rate-control specific commands */
		CASE_RETURN_STRING(WMI_PEER_RATE_RETRY_SCHED_CMDID);

		/* WLAN Profiling commands. */
		CASE_RETURN_STRING(WMI_WLAN_PROFILE_TRIGGER_CMDID);
		CASE_RETURN_STRING(WMI_WLAN_PROFILE_SET_HIST_INTVL_CMDID);
		CASE_RETURN_STRING(WMI_WLAN_PROFILE_GET_PROFILE_DATA_CMDID);
		CASE_RETURN_STRING(WMI_WLAN_PROFILE_ENABLE_PROFILE_ID_CMDID);
		CASE_RETURN_STRING(WMI_WLAN_PROFILE_LIST_PROFILE_ID_CMDID);

		/* Suspend resume command Ids */
		CASE_RETURN_STRING(WMI_PDEV_SUSPEND_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_RESUME_CMDID);

		/* Beacon filter commands */
		/* add a beacon filter */
		CASE_RETURN_STRING(WMI_ADD_BCN_FILTER_CMDID);
		/* remove a  beacon filter */
		CASE_RETURN_STRING(WMI_RMV_BCN_FILTER_CMDID);

		/* WOW Specific WMI commands */
		/* add pattern for awake */
		CASE_RETURN_STRING(WMI_WOW_ADD_WAKE_PATTERN_CMDID);
		/* deleta a wake pattern */
		CASE_RETURN_STRING(WMI_WOW_DEL_WAKE_PATTERN_CMDID);
		/* enable/deisable wake event  */
		CASE_RETURN_STRING(WMI_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID);
		/* enable WOW  */
		CASE_RETURN_STRING(WMI_WOW_ENABLE_CMDID);
		/* host woke up from sleep event to FW. Generated in response
		 * to WOW Hardware event */
		CASE_RETURN_STRING(WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID);

		/* RTT measurement related cmd */
		/* reques to make an RTT measurement */
		CASE_RETURN_STRING(WMI_RTT_MEASREQ_CMDID);
		/* reques to report a tsf measurement */
		CASE_RETURN_STRING(WMI_RTT_TSF_CMDID);

		/* spectral scan command */
		/* configure spectral scan */
		CASE_RETURN_STRING(WMI_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID);
		/* enable/disable spectral scan and trigger */
		CASE_RETURN_STRING(WMI_VDEV_SPECTRAL_SCAN_ENABLE_CMDID);

		/* F/W stats */
		/* one time request for stats */
		CASE_RETURN_STRING(WMI_REQUEST_STATS_CMDID);
		/* Push MCC Adaptive Scheduler Stats to Firmware */
		CASE_RETURN_STRING(WMI_MCC_SCHED_TRAFFIC_STATS_CMDID);

		/* ARP OFFLOAD REQUEST*/
		CASE_RETURN_STRING(WMI_SET_ARP_NS_OFFLOAD_CMDID);

		/* Proactive ARP Response Add Pattern Command*/
		CASE_RETURN_STRING(WMI_ADD_PROACTIVE_ARP_RSP_PATTERN_CMDID);

		/* Proactive ARP Response Del Pattern Command*/
		CASE_RETURN_STRING(WMI_DEL_PROACTIVE_ARP_RSP_PATTERN_CMDID);

		/* NS offload confid*/
		CASE_RETURN_STRING(WMI_NETWORK_LIST_OFFLOAD_CONFIG_CMDID);

		/* GTK offload Specific WMI commands */
		CASE_RETURN_STRING(WMI_GTK_OFFLOAD_CMDID);

		/* CSA offload Specific WMI commands */
		/* csa offload enable */
		CASE_RETURN_STRING(WMI_CSA_OFFLOAD_ENABLE_CMDID);
		/* chan switch command */
		CASE_RETURN_STRING(WMI_CSA_OFFLOAD_CHANSWITCH_CMDID);

		/* Chatter commands */
		/* Change chatter mode of operation */
		CASE_RETURN_STRING(WMI_CHATTER_SET_MODE_CMDID);
		/* chatter add coalescing filter command */
		CASE_RETURN_STRING(WMI_CHATTER_ADD_COALESCING_FILTER_CMDID);
		/* chatter delete coalescing filter command */
		CASE_RETURN_STRING(WMI_CHATTER_DELETE_COALESCING_FILTER_CMDID);
		/* chatter coalecing query command */
		CASE_RETURN_STRING(WMI_CHATTER_COALESCING_QUERY_CMDID);

		/* addba specific commands */
		/* start the aggregation on this TID */
		CASE_RETURN_STRING(WMI_PEER_TID_ADDBA_CMDID);
		/* stop the aggregation on this TID */
		CASE_RETURN_STRING(WMI_PEER_TID_DELBA_CMDID);

		/* set station mimo powersave method */
		CASE_RETURN_STRING(WMI_STA_DTIM_PS_METHOD_CMDID);
		/* Configure the Station UAPSD AC Auto Trigger Parameters */
		CASE_RETURN_STRING(WMI_STA_UAPSD_AUTO_TRIG_CMDID);
		/* Configure the Keep Alive Parameters */
		CASE_RETURN_STRING(WMI_STA_KEEPALIVE_CMDID);

		/* Request ssn from target for a sta/tid pair */
		CASE_RETURN_STRING(WMI_BA_REQ_SSN_CMDID);
		/* misc command group */
		/* echo command mainly used for testing */
		CASE_RETURN_STRING(WMI_ECHO_CMDID);

		/* !!IMPORTANT!!
		 * If you need to add a new WMI command to the CASE_RETURN_STRING(WMI_GRP_MISC sub-group,
		 * please make sure you add it BEHIND CASE_RETURN_STRING(WMI_PDEV_UTF_CMDID);
		 * as we MUST have a fixed value here to maintain compatibility between
		 * UTF and the ART2 driver
		 */
		/* UTF WMI commands */
		CASE_RETURN_STRING(WMI_PDEV_UTF_CMDID);

		/* set debug log config */
		CASE_RETURN_STRING(WMI_DBGLOG_CFG_CMDID);
		/* QVIT specific command id */
		CASE_RETURN_STRING(WMI_PDEV_QVIT_CMDID);
		/* Factory Testing Mode request command
		 * used for integrated chipsets */
		CASE_RETURN_STRING(WMI_PDEV_FTM_INTG_CMDID);
		/* set and get keepalive parameters command */
		CASE_RETURN_STRING(WMI_VDEV_SET_KEEPALIVE_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_GET_KEEPALIVE_CMDID);
		/* For fw recovery test command */
		CASE_RETURN_STRING(WMI_FORCE_FW_HANG_CMDID);
		/* Set Mcast/Bdcast filter */
		CASE_RETURN_STRING(WMI_SET_MCASTBCAST_FILTER_CMDID);
		/* set thermal management params */
		CASE_RETURN_STRING(WMI_THERMAL_MGMT_CMDID);
		CASE_RETURN_STRING(WMI_RSSI_BREACH_MONITOR_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_LRO_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_TRANSFER_DATA_TO_FLASH_CMDID);
		CASE_RETURN_STRING(WMI_CONFIG_ENHANCED_MCAST_FILTER_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_WISA_CMDID);
		CASE_RETURN_STRING(WMI_SCAN_ADAPTIVE_DWELL_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_WOW_SET_ACTION_WAKE_UP_CMDID);
		CASE_RETURN_STRING(WMI_MAWC_SENSOR_REPORT_IND_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_CONFIGURE_MAWC_CMDID);
		CASE_RETURN_STRING(WMI_NLO_CONFIGURE_MAWC_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_CONFIGURE_MAWC_CMDID);
		/* GPIO Configuration */
		CASE_RETURN_STRING(WMI_GPIO_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_GPIO_OUTPUT_CMDID);

		/* Txbf configuration command */
		CASE_RETURN_STRING(WMI_TXBF_CMDID);

		/* FWTEST Commands */
		CASE_RETURN_STRING(WMI_FWTEST_VDEV_MCC_SET_TBTT_MODE_CMDID);
		/* set NoA descs */
		CASE_RETURN_STRING(WMI_FWTEST_P2P_SET_NOA_PARAM_CMDID);

		/* TDLS Configuration */
		/* enable/disable TDLS */
		CASE_RETURN_STRING(WMI_TDLS_SET_STATE_CMDID);
		/* set tdls peer state */
		CASE_RETURN_STRING(WMI_TDLS_PEER_UPDATE_CMDID);

		/* Resmgr Configuration */
		/* Adaptive OCS is enabled by default in the FW.
		 * This command is used to disable FW based adaptive OCS.
		 */
		CASE_RETURN_STRING
			(WMI_RESMGR_ADAPTIVE_OCS_ENABLE_DISABLE_CMDID);
		/* set the requested channel time quota for the home channels */
		CASE_RETURN_STRING(WMI_RESMGR_SET_CHAN_TIME_QUOTA_CMDID);
		/* set the requested latency for the home channels */
		CASE_RETURN_STRING(WMI_RESMGR_SET_CHAN_LATENCY_CMDID);

		/* STA SMPS Configuration */
		/* force SMPS mode */
		CASE_RETURN_STRING(WMI_STA_SMPS_FORCE_MODE_CMDID);
		/* set SMPS parameters */
		CASE_RETURN_STRING(WMI_STA_SMPS_PARAM_CMDID);

		/* Wlan HB commands */
		/* enalbe/disable wlan HB */
		CASE_RETURN_STRING(WMI_HB_SET_ENABLE_CMDID);
		/* set tcp parameters for wlan HB */
		CASE_RETURN_STRING(WMI_HB_SET_TCP_PARAMS_CMDID);
		/* set tcp pkt filter for wlan HB */
		CASE_RETURN_STRING(WMI_HB_SET_TCP_PKT_FILTER_CMDID);
		/* set udp parameters for wlan HB */
		CASE_RETURN_STRING(WMI_HB_SET_UDP_PARAMS_CMDID);
		/* set udp pkt filter for wlan HB */
		CASE_RETURN_STRING(WMI_HB_SET_UDP_PKT_FILTER_CMDID);

		/* Wlan RMC commands*/
		/* enable/disable RMC */
		CASE_RETURN_STRING(WMI_RMC_SET_MODE_CMDID);
		/* configure action frame period */
		CASE_RETURN_STRING(WMI_RMC_SET_ACTION_PERIOD_CMDID);
		/* For debug/future enhancement purposes only,
		 * configures/finetunes RMC algorithms */
		CASE_RETURN_STRING(WMI_RMC_CONFIG_CMDID);

		/* WLAN MHF offload commands */
		/* enable/disable MHF offload */
		CASE_RETURN_STRING(WMI_MHF_OFFLOAD_SET_MODE_CMDID);
		/* Plumb routing table for MHF offload */
		CASE_RETURN_STRING(WMI_MHF_OFFLOAD_PLUMB_ROUTING_TBL_CMDID);

		/* location scan commands */
		/* start batch scan */
		CASE_RETURN_STRING(WMI_BATCH_SCAN_ENABLE_CMDID);
		/* stop batch scan */
		CASE_RETURN_STRING(WMI_BATCH_SCAN_DISABLE_CMDID);
		/* get batch scan result */
		CASE_RETURN_STRING(WMI_BATCH_SCAN_TRIGGER_RESULT_CMDID);
		/* OEM related cmd */
		CASE_RETURN_STRING(WMI_OEM_REQ_CMDID);
		CASE_RETURN_STRING(WMI_OEM_REQUEST_CMDID);
		/* NAN request cmd */
		CASE_RETURN_STRING(WMI_NAN_CMDID);
		/* Modem power state cmd */
		CASE_RETURN_STRING(WMI_MODEM_POWER_STATE_CMDID);
		CASE_RETURN_STRING(WMI_REQUEST_STATS_EXT_CMDID);
		CASE_RETURN_STRING(WMI_OBSS_SCAN_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_OBSS_SCAN_DISABLE_CMDID);
		CASE_RETURN_STRING(WMI_PEER_GET_ESTIMATED_LINKSPEED_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_SCAN_CMD);
		CASE_RETURN_STRING(WMI_PDEV_SET_LED_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_HOST_AUTO_SHUTDOWN_CFG_CMDID);
		CASE_RETURN_STRING(WMI_CHAN_AVOID_UPDATE_CMDID);
		CASE_RETURN_STRING(WMI_COEX_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_WOW_IOAC_ADD_KEEPALIVE_CMDID);
		CASE_RETURN_STRING(WMI_WOW_IOAC_DEL_KEEPALIVE_CMDID);
		CASE_RETURN_STRING(WMI_WOW_IOAC_ADD_WAKE_PATTERN_CMDID);
		CASE_RETURN_STRING(WMI_WOW_IOAC_DEL_WAKE_PATTERN_CMDID);
		CASE_RETURN_STRING(WMI_REQUEST_LINK_STATS_CMDID);
		CASE_RETURN_STRING(WMI_START_LINK_STATS_CMDID);
		CASE_RETURN_STRING(WMI_CLEAR_LINK_STATS_CMDID);
		CASE_RETURN_STRING(WMI_GET_FW_MEM_DUMP_CMDID);
		CASE_RETURN_STRING(WMI_LPI_MGMT_SNOOPING_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_LPI_START_SCAN_CMDID);
		CASE_RETURN_STRING(WMI_LPI_STOP_SCAN_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_START_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_STOP_CMDID);
		CASE_RETURN_STRING
			(WMI_EXTSCAN_CONFIGURE_WLAN_CHANGE_MONITOR_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_CONFIGURE_HOTLIST_MONITOR_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_GET_CACHED_RESULTS_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_GET_WLAN_CHANGE_RESULTS_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_SET_CAPABILITIES_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_GET_CAPABILITIES_CMDID);
		CASE_RETURN_STRING(WMI_EXTSCAN_CONFIGURE_HOTLIST_SSID_MONITOR_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_SYNCH_COMPLETE);
		CASE_RETURN_STRING(WMI_D0_WOW_ENABLE_DISABLE_CMDID);
		CASE_RETURN_STRING(WMI_EXTWOW_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_EXTWOW_SET_APP_TYPE1_PARAMS_CMDID);
		CASE_RETURN_STRING(WMI_EXTWOW_SET_APP_TYPE2_PARAMS_CMDID);
		CASE_RETURN_STRING(WMI_UNIT_TEST_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_SET_RIC_REQUEST_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_TEMPERATURE_CMDID);
		CASE_RETURN_STRING(WMI_SET_DHCP_SERVER_OFFLOAD_CMDID);
		CASE_RETURN_STRING(WMI_TPC_CHAINMASK_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_IPA_OFFLOAD_ENABLE_DISABLE_CMDID);
		CASE_RETURN_STRING(WMI_SCAN_PROB_REQ_OUI_CMDID);
		CASE_RETURN_STRING(WMI_TDLS_SET_OFFCHAN_MODE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_LED_FLASHING_CMDID);
		CASE_RETURN_STRING(WMI_MDNS_OFFLOAD_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_MDNS_SET_FQDN_CMDID);
		CASE_RETURN_STRING(WMI_MDNS_SET_RESPONSE_CMDID);
		CASE_RETURN_STRING(WMI_MDNS_GET_STATS_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_INVOKE_CMDID);
		CASE_RETURN_STRING(WMI_SET_ANTENNA_DIVERSITY_CMDID);
		CASE_RETURN_STRING(WMI_SAP_OFL_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_APFIND_CMDID);
		CASE_RETURN_STRING(WMI_PASSPOINT_LIST_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_OCB_SET_SCHED_CMDID);
		CASE_RETURN_STRING(WMI_OCB_SET_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_OCB_SET_UTC_TIME_CMDID);
		CASE_RETURN_STRING(WMI_OCB_START_TIMING_ADVERT_CMDID);
		CASE_RETURN_STRING(WMI_OCB_STOP_TIMING_ADVERT_CMDID);
		CASE_RETURN_STRING(WMI_OCB_GET_TSF_TIMER_CMDID);
		CASE_RETURN_STRING(WMI_DCC_GET_STATS_CMDID);
		CASE_RETURN_STRING(WMI_DCC_CLEAR_STATS_CMDID);
		CASE_RETURN_STRING(WMI_DCC_UPDATE_NDL_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_FILTER_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_SUBNET_CHANGE_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_DEBUG_MESG_FLUSH_CMDID);
		CASE_RETURN_STRING(WMI_PEER_SET_RATE_REPORT_CONDITION_CMDID);
		CASE_RETURN_STRING(WMI_SOC_SET_PCL_CMDID);
		CASE_RETURN_STRING(WMI_SOC_SET_HW_MODE_CMDID);
		CASE_RETURN_STRING(WMI_SOC_SET_DUAL_MAC_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_WOW_ENABLE_ICMPV6_NA_FLT_CMDID);
		CASE_RETURN_STRING(WMI_DIAG_EVENT_LOG_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_PACKET_FILTER_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_PACKET_FILTER_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_SAP_SET_BLACKLIST_PARAM_CMDID);
		CASE_RETURN_STRING(WMI_WOW_UDP_SVC_OFLD_CMDID);
		CASE_RETURN_STRING(WMI_MGMT_TX_SEND_CMDID);
		CASE_RETURN_STRING(WMI_SOC_SET_ANTENNA_MODE_CMDID);
		CASE_RETURN_STRING(WMI_WOW_HOSTWAKEUP_GPIO_PIN_PATTERN_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_AP_PS_EGAP_PARAM_CMDID);
		CASE_RETURN_STRING(WMI_PMF_OFFLOAD_SET_SA_QUERY_CMDID);
		CASE_RETURN_STRING(WMI_BPF_GET_CAPABILITY_CMDID);
		CASE_RETURN_STRING(WMI_BPF_GET_VDEV_STATS_CMDID);
		CASE_RETURN_STRING(WMI_BPF_SET_VDEV_INSTRUCTIONS_CMDID);
		CASE_RETURN_STRING(WMI_BPF_DEL_VDEV_INSTRUCTIONS_CMDID);
		CASE_RETURN_STRING(WMI_NDI_GET_CAP_REQ_CMDID);
		CASE_RETURN_STRING(WMI_NDP_INITIATOR_REQ_CMDID);
		CASE_RETURN_STRING(WMI_NDP_RESPONDER_REQ_CMDID);
		CASE_RETURN_STRING(WMI_NDP_END_REQ_CMDID);
		CASE_RETURN_STRING(WMI_PEER_UPDATE_WDS_ENTRY_CMDID);
		CASE_RETURN_STRING(WMI_PEER_ADD_PROXY_STA_ENTRY_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_FIPS_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SMART_ANT_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SMART_ANT_SET_RX_ANTENNA_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_ANTENNA_SWITCH_TABLE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_CTL_TABLE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_MIMOGAIN_TABLE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_TPC_CMDID);
		CASE_RETURN_STRING(WMI_MIB_STATS_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_ANI_CCK_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_ANI_OFDM_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_RATEMASK_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_ATF_REQUEST_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_SET_DSCP_TID_MAP_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_FILTER_NEIGHBOR_RX_PACKETS_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_SET_QUIET_MODE_CMDID);
		CASE_RETURN_STRING(WMI_PEER_SMART_ANT_SET_TX_ANTENNA_CMDID);
		CASE_RETURN_STRING(WMI_PEER_SMART_ANT_SET_TRAIN_INFO_CMDID);
		CASE_RETURN_STRING(WMI_PEER_SMART_ANT_SET_NODE_CONFIG_OPS_CMDID);
		CASE_RETURN_STRING(WMI_PEER_ATF_REQUEST_CMDID);
		CASE_RETURN_STRING(WMI_FWTEST_CMDID);
		CASE_RETURN_STRING(WMI_QBOOST_CFG_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_NFCAL_POWER_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_PCL_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_HW_MODE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_MAC_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_ANTENNA_MODE_CMDID);
		CASE_RETURN_STRING(WMI_ROAM_SET_MBO_PARAM_CMDID);
		CASE_RETURN_STRING(WMI_CHAN_AVOID_RPT_ALLOW_CMDID);
		CASE_RETURN_STRING(WMI_SET_PERIODIC_CHANNEL_STATS_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_SET_CUSTOM_AGGR_SIZE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_WAL_POWER_DEBUG_CMDID);
		CASE_RETURN_STRING(WMI_PEER_BWF_REQUEST_CMDID);
		CASE_RETURN_STRING(WMI_DBGLOG_TIME_STAMP_SYNC_CMDID);
		CASE_RETURN_STRING(WMI_P2P_LISTEN_OFFLOAD_START_CMDID);
		CASE_RETURN_STRING(WMI_P2P_LISTEN_OFFLOAD_STOP_CMDID);
		CASE_RETURN_STRING(WMI_PEER_REORDER_QUEUE_SETUP_CMDID);
		CASE_RETURN_STRING(WMI_PEER_REORDER_QUEUE_REMOVE_CMDID);
		CASE_RETURN_STRING(WMI_SET_MULTIPLE_MCAST_FILTER_CMDID);
		CASE_RETURN_STRING(WMI_READ_DATA_FROM_FLASH_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_REORDER_TIMEOUT_VAL_CMDID);
		CASE_RETURN_STRING(WMI_PEER_SET_RX_BLOCKSIZE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_WAKEUP_CONFIG_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_ANTDIV_STATUS_CMDID);
		CASE_RETURN_STRING(WMI_PEER_ANTDIV_INFO_REQ_CMDID);
		CASE_RETURN_STRING(WMI_MNT_FILTER_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_GET_CHIP_POWER_STATS_CMDID);
		CASE_RETURN_STRING(WMI_COEX_GET_ANTENNA_ISOLATION_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_SET_STATS_THRESHOLD_CMDID);
		CASE_RETURN_STRING(WMI_REQUEST_WLAN_STATS_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_ENCRYPT_DECRYPT_DATA_REQ_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_DFS_PHYERR_OFFLOAD_ENABLE_CMDID);
		CASE_RETURN_STRING(WMI_PDEV_DFS_PHYERR_OFFLOAD_DISABLE_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_ADFS_CH_CFG_CMDID);
		CASE_RETURN_STRING(WMI_VDEV_ADFS_OCAC_ABORT_CMDID);
		CASE_RETURN_STRING(WMI_SAR_LIMITS_CMDID);
	}

	return "Invalid WMI cmd";
}

static inline void wma_log_cmd_id(uint32_t cmd_id, uint32_t tag)
{
	WMI_LOGD("Send WMI command:%s command_id:%d htc_tag:%d\n",
		 wmi_id_to_name(cmd_id), cmd_id, tag);
}
#else
static uint8_t *wmi_id_to_name(uint32_t wmi_command)
{
	return "Invalid WMI cmd";
}
#endif

#ifdef CONFIG_MCL
/**
 * wmi_is_pm_resume_cmd() - check if a cmd is part of the resume sequence
 * @cmd_id: command to check
 *
 * Return: true if the command is part of the resume sequence.
 */
static bool wmi_is_pm_resume_cmd(uint32_t cmd_id)
{
	switch (cmd_id) {
	case WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID:
	case WMI_PDEV_RESUME_CMDID:
		return true;

	default:
		return false;
	}
}
#else
static bool wmi_is_pm_resume_cmd(uint32_t cmd_id)
{
	return false;
}
#endif

/**
 * wmi_unified_cmd_send() - WMI command API
 * @wmi_handle: handle to wmi
 * @buf: wmi buf
 * @len: wmi buffer length
 * @cmd_id: wmi command id
 *
 * Note, it is NOT safe to access buf after calling this function!
 *
 * Return: 0 on success
 */
QDF_STATUS wmi_unified_cmd_send(wmi_unified_t wmi_handle, wmi_buf_t buf,
				uint32_t len, uint32_t cmd_id)
{
	HTC_PACKET *pkt;
	A_STATUS status;
	uint16_t htc_tag = 0;

	if (wmi_get_runtime_pm_inprogress(wmi_handle)) {
		htc_tag =
			(A_UINT16)wmi_handle->ops->wmi_set_htc_tx_tag(
						wmi_handle, buf, cmd_id);
	} else if (qdf_atomic_read(&wmi_handle->is_target_suspended) &&
		(!wmi_is_pm_resume_cmd(cmd_id))) {
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
				  "%s: Target is suspended", __func__);
		QDF_ASSERT(0);
		return QDF_STATUS_E_BUSY;
	}
	if (wmi_handle->wmi_stopinprogress) {
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
			"WMI  stop in progress\n");
		return QDF_STATUS_E_INVAL;
	}

#ifndef WMI_NON_TLV_SUPPORT
	/* Do sanity check on the TLV parameter structure */
	if (wmi_handle->target_type == WMI_TLV_TARGET) {
		void *buf_ptr = (void *)qdf_nbuf_data(buf);

		if (wmitlv_check_command_tlv_params(NULL, buf_ptr, len, cmd_id)
			!= 0) {
			QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
			"\nERROR: %s: Invalid WMI Param Buffer for Cmd:%d",
				__func__, cmd_id);
			return QDF_STATUS_E_INVAL;
		}
	}
#endif

	if (qdf_nbuf_push_head(buf, sizeof(WMI_CMD_HDR)) == NULL) {
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
			 "%s, Failed to send cmd %x, no memory",
			 __func__, cmd_id);
		return QDF_STATUS_E_NOMEM;
	}

	WMI_SET_FIELD(qdf_nbuf_data(buf), WMI_CMD_HDR, COMMANDID, cmd_id);

	qdf_atomic_inc(&wmi_handle->pending_cmds);
	if (qdf_atomic_read(&wmi_handle->pending_cmds) >= WMI_MAX_CMDS) {
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
		    "\n%s: hostcredits = %d", __func__,
		wmi_get_host_credits(wmi_handle));
		htc_dump_counter_info(wmi_handle->htc_handle);
		qdf_atomic_dec(&wmi_handle->pending_cmds);
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
			"%s: MAX %d WMI Pending cmds reached.", __func__,
			WMI_MAX_CMDS);
		QDF_BUG(0);
		return QDF_STATUS_E_BUSY;
	}

	pkt = qdf_mem_malloc(sizeof(*pkt));
	if (!pkt) {
		qdf_atomic_dec(&wmi_handle->pending_cmds);
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
			 "%s, Failed to alloc htc packet %x, no memory",
			 __func__, cmd_id);
		return QDF_STATUS_E_NOMEM;
	}

	SET_HTC_PACKET_INFO_TX(pkt,
			       NULL,
			       qdf_nbuf_data(buf), len + sizeof(WMI_CMD_HDR),
			       wmi_handle->wmi_endpoint_id, htc_tag);

	SET_HTC_PACKET_NET_BUF_CONTEXT(pkt, buf);
#ifdef CONFIG_MCL
	wma_log_cmd_id(cmd_id, htc_tag);
#endif

#ifdef WMI_INTERFACE_EVENT_LOGGING
	if (wmi_handle->log_info.wmi_logging_enable) {
		qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock);
		/*Record 16 bytes of WMI cmd data -
		 * * exclude TLV and WMI headers */
		if (wmi_handle->ops->is_management_record(cmd_id)) {
			WMI_MGMT_COMMAND_RECORD(wmi_handle, cmd_id,
				((uint32_t *) qdf_nbuf_data(buf) +
				 wmi_handle->log_info.buf_offset_command));
		} else {
			WMI_COMMAND_RECORD(wmi_handle, cmd_id,
			((uint32_t *) qdf_nbuf_data(buf) +
			 wmi_handle->log_info.buf_offset_command));
		}
		qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock);
	}
#endif

	status = htc_send_pkt(wmi_handle->htc_handle, pkt);

	if (A_OK != status) {
		qdf_atomic_dec(&wmi_handle->pending_cmds);
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
		   "%s %d, htc_send_pkt failed", __func__, __LINE__);
		qdf_mem_free(pkt);

	}
	if (status)
		return QDF_STATUS_E_FAILURE;

	return QDF_STATUS_SUCCESS;
}

/**
 * wmi_unified_get_event_handler_ix() - gives event handler's index
 * @wmi_handle: handle to wmi
 * @event_id: wmi  event id
 *
 * Return: event handler's index
 */
static int wmi_unified_get_event_handler_ix(wmi_unified_t wmi_handle,
					    uint32_t event_id)
{
	uint32_t idx = 0;
	int32_t invalid_idx = -1;
	struct wmi_soc *soc = wmi_handle->soc;

	for (idx = 0; (idx < soc->max_event_idx &&
		       idx < WMI_UNIFIED_MAX_EVENT); ++idx) {
		if (wmi_handle->event_id[idx] == event_id &&
		    wmi_handle->event_handler[idx] != NULL) {
			return idx;
		}
	}

	return invalid_idx;
}

/**
 * wmi_unified_register_event() - register wmi event handler
 * @wmi_handle: handle to wmi
 * @event_id: wmi event id
 * @handler_func: wmi event handler function
 *
 * Return: 0 on success
 */
int wmi_unified_register_event(wmi_unified_t wmi_handle,
				       uint32_t event_id,
				       wmi_unified_event_handler handler_func)
{
	uint32_t idx = 0;
	uint32_t evt_id;
	struct wmi_soc *soc = wmi_handle->soc;

	if (event_id >= wmi_events_max ||
		wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) {
		qdf_print("%s: Event id %d is unavailable\n",
				 __func__, event_id);
		return QDF_STATUS_E_FAILURE;
	}
	evt_id = wmi_handle->wmi_events[event_id];
	if (wmi_unified_get_event_handler_ix(wmi_handle, evt_id) != -1) {
		qdf_print("%s : event handler already registered 0x%x\n",
		       __func__, evt_id);
		return QDF_STATUS_E_FAILURE;
	}
	if (soc->max_event_idx == WMI_UNIFIED_MAX_EVENT) {
		qdf_print("%s : no more event handlers 0x%x\n",
		       __func__, evt_id);
		return QDF_STATUS_E_FAILURE;
	}
	idx = soc->max_event_idx;
	wmi_handle->event_handler[idx] = handler_func;
	wmi_handle->event_id[idx] = evt_id;
	qdf_spin_lock_bh(&soc->ctx_lock);
	wmi_handle->ctx[idx] = WMI_RX_UMAC_CTX;
	qdf_spin_unlock_bh(&soc->ctx_lock);
	soc->max_event_idx++;

	return 0;
}

/**
 * wmi_unified_register_event_handler() - register wmi event handler
 * @wmi_handle: handle to wmi
 * @event_id: wmi event id
 * @handler_func: wmi event handler function
 * @rx_ctx: rx execution context for wmi rx events
 *
 * This API is to support legacy requirements. Will be deprecated in future.
 * Return: 0 on success
 */
int wmi_unified_register_event_handler(wmi_unified_t wmi_handle,
				       uint32_t event_id,
				       wmi_unified_event_handler handler_func,
				       uint8_t rx_ctx)
{
	uint32_t idx = 0;
	uint32_t evt_id;
	struct wmi_soc *soc = wmi_handle->soc;

#ifndef CONFIG_MCL
	if (event_id >= wmi_events_max ||
		wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) {
		qdf_print("%s: Event id %d is unavailable\n",
				 __func__, event_id);
		return QDF_STATUS_E_FAILURE;
	}
	evt_id = wmi_handle->wmi_events[event_id];
#else
	evt_id = event_id;
#endif
	if (wmi_unified_get_event_handler_ix(wmi_handle, evt_id) != -1) {
		qdf_print("%s : event handler already registered 0x%x\n",
		       __func__, evt_id);
		return QDF_STATUS_E_FAILURE;
	}
	if (soc->max_event_idx == WMI_UNIFIED_MAX_EVENT) {
		qdf_print("%s : no more event handlers 0x%x\n",
		       __func__, evt_id);
		return QDF_STATUS_E_FAILURE;
	}
	idx = soc->max_event_idx;
	wmi_handle->event_handler[idx] = handler_func;
	wmi_handle->event_id[idx] = evt_id;
	qdf_spin_lock_bh(&soc->ctx_lock);
	wmi_handle->ctx[idx] = rx_ctx;
	qdf_spin_unlock_bh(&soc->ctx_lock);
	soc->max_event_idx++;

	return 0;
}

/**
 * wmi_unified_unregister_event() - unregister wmi event handler
 * @wmi_handle: handle to wmi
 * @event_id: wmi event id
 *
 * Return: 0 on success
 */
int wmi_unified_unregister_event(wmi_unified_t wmi_handle,
					 uint32_t event_id)
{
	uint32_t idx = 0;
	uint32_t evt_id;
	struct wmi_soc *soc = wmi_handle->soc;

	if (event_id >= wmi_events_max ||
		wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) {
		qdf_print("%s: Event id %d is unavailable\n",
				 __func__, event_id);
		return QDF_STATUS_E_FAILURE;
	}
	evt_id = wmi_handle->wmi_events[event_id];

	idx = wmi_unified_get_event_handler_ix(wmi_handle, evt_id);
	if (idx == -1) {
		qdf_print("%s : event handler is not registered: evt id 0x%x\n",
		       __func__, evt_id);
		return QDF_STATUS_E_FAILURE;
	}
	wmi_handle->event_handler[idx] = NULL;
	wmi_handle->event_id[idx] = 0;
	--soc->max_event_idx;
	wmi_handle->event_handler[idx] =
		wmi_handle->event_handler[soc->max_event_idx];
	wmi_handle->event_id[idx] =
		wmi_handle->event_id[soc->max_event_idx];

	return 0;
}

/**
 * wmi_unified_unregister_event_handler() - unregister wmi event handler
 * @wmi_handle: handle to wmi
 * @event_id: wmi event id
 *
 * Return: 0 on success
 */
int wmi_unified_unregister_event_handler(wmi_unified_t wmi_handle,
					 uint32_t event_id)
{
	uint32_t idx = 0;
	uint32_t evt_id;
	struct wmi_soc *soc = wmi_handle->soc;

#ifndef CONFIG_MCL
	if (event_id >= wmi_events_max ||
		wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) {
		qdf_print("%s: Event id %d is unavailable\n",
				 __func__, event_id);
		return QDF_STATUS_E_FAILURE;
	}
	evt_id = wmi_handle->wmi_events[event_id];
#else
	evt_id = event_id;
#endif

	idx = wmi_unified_get_event_handler_ix(wmi_handle, evt_id);
	if (idx == -1) {
		qdf_print("%s : event handler is not registered: evt id 0x%x\n",
		       __func__, evt_id);
		return QDF_STATUS_E_FAILURE;
	}
	wmi_handle->event_handler[idx] = NULL;
	wmi_handle->event_id[idx] = 0;
	--soc->max_event_idx;
	wmi_handle->event_handler[idx] =
		wmi_handle->event_handler[soc->max_event_idx];
	wmi_handle->event_id[idx] =
		wmi_handle->event_id[soc->max_event_idx];

	return 0;
}

/**
 * wmi_process_fw_event_default_ctx() - process in default caller context
 * @wmi_handle: handle to wmi
 * @htc_packet: pointer to htc packet
 * @exec_ctx: execution context for wmi fw event
 *
 * Event process by below function will be in default caller context.
 * wmi internally provides rx work thread processing context.
 *
 * Return: none
 */
static void wmi_process_fw_event_default_ctx(struct wmi_unified *wmi_handle,
		       HTC_PACKET *htc_packet, uint8_t exec_ctx)
{
	wmi_buf_t evt_buf;
	evt_buf = (wmi_buf_t) htc_packet->pPktContext;

#ifndef CONFIG_MCL
	wmi_handle->rx_ops.wma_process_fw_event_handler_cbk
		(wmi_handle->scn_handle, evt_buf, exec_ctx);
#else
	wmi_handle->rx_ops.wma_process_fw_event_handler_cbk(wmi_handle,
					 evt_buf, exec_ctx);
#endif

	return;
}

/**
 * wmi_process_fw_event_worker_thread_ctx() - process in worker thread context
 * @wmi_handle: handle to wmi
 * @htc_packet: pointer to htc packet
 *
 * Event process by below function will be in worker thread context.
 * Use this method for events which are not critical and not
 * handled in protocol stack.
 *
 * Return: none
 */
static void wmi_process_fw_event_worker_thread_ctx
		(struct wmi_unified *wmi_handle, HTC_PACKET *htc_packet)
{
	wmi_buf_t evt_buf;
	uint32_t id;
	uint8_t *data;

	evt_buf = (wmi_buf_t) htc_packet->pPktContext;
	id = WMI_GET_FIELD(qdf_nbuf_data(evt_buf), WMI_CMD_HDR, COMMANDID);
	data = qdf_nbuf_data(evt_buf);

#ifdef WMI_INTERFACE_EVENT_LOGGING
	if (wmi_handle->log_info.wmi_logging_enable) {
		qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock);
		/* Exclude 4 bytes of TLV header */
		WMI_RX_EVENT_RECORD(wmi_handle, id, ((uint8_t *) data +
				wmi_handle->log_info.buf_offset_event));
		qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock);
	}
#endif
	qdf_spin_lock_bh(&wmi_handle->eventq_lock);
	qdf_nbuf_queue_add(&wmi_handle->event_queue, evt_buf);
	qdf_spin_unlock_bh(&wmi_handle->eventq_lock);
	qdf_queue_work(0, wmi_handle->wmi_rx_work_queue,
			&wmi_handle->rx_event_work);

	return;
}

/**
 * wmi_get_pdev_ep: Get wmi handle based on endpoint
 * @soc: handle to wmi soc
 * @ep: endpoint id
 *
 * Return: none
 */
static struct wmi_unified *wmi_get_pdev_ep(struct wmi_soc *soc,
						HTC_ENDPOINT_ID ep)
{
	uint32_t i;

	for (i = 0; i < WMI_MAX_RADIOS; i++)
		if (soc->wmi_endpoint_id[i] == ep)
			break;

	if (i == WMI_MAX_RADIOS)
		return NULL;

	return soc->wmi_pdev[i];
}

/**
 * wmi_control_rx() - process fw events callbacks
 * @ctx: handle to wmi
 * @htc_packet: pointer to htc packet
 *
 * Return: none
 */
static void wmi_control_rx(void *ctx, HTC_PACKET *htc_packet)
{
	struct wmi_soc *soc = (struct wmi_soc *) ctx;
	struct wmi_unified *wmi_handle;
	wmi_buf_t evt_buf;
	uint32_t id;
	uint32_t idx = 0;
	enum wmi_rx_exec_ctx exec_ctx;

	evt_buf = (wmi_buf_t) htc_packet->pPktContext;

	wmi_handle = wmi_get_pdev_ep(soc, htc_packet->Endpoint);
	if (wmi_handle == NULL) {
		qdf_print
		("%s :unable to get wmi_handle to Endpoint %d\n",
			__func__, htc_packet->Endpoint);
		qdf_nbuf_free(evt_buf);
		return;
	}

	id = WMI_GET_FIELD(qdf_nbuf_data(evt_buf), WMI_CMD_HDR, COMMANDID);
	idx = wmi_unified_get_event_handler_ix(wmi_handle, id);
	if (qdf_unlikely(idx == A_ERROR)) {
		qdf_print
		("%s :event handler is not registered: event id 0x%x\n",
			__func__, id);
		qdf_nbuf_free(evt_buf);
		return;
	}
	qdf_spin_lock_bh(&soc->ctx_lock);
	exec_ctx = wmi_handle->ctx[idx];
	qdf_spin_unlock_bh(&soc->ctx_lock);

	if (exec_ctx == WMI_RX_WORK_CTX) {
		wmi_process_fw_event_worker_thread_ctx
					(wmi_handle, htc_packet);
	} else if (exec_ctx > WMI_RX_WORK_CTX) {
		wmi_process_fw_event_default_ctx
					(wmi_handle, htc_packet, exec_ctx);
	} else {
		qdf_print("%s :Invalid event context %d\n", __func__, exec_ctx);
		qdf_nbuf_free(evt_buf);
	}

}

/**
 * wmi_process_fw_event() - process any fw event
 * @wmi_handle: wmi handle
 * @evt_buf: fw event buffer
 *
 * This function process fw event in caller context
 *
 * Return: none
 */
void wmi_process_fw_event(struct wmi_unified *wmi_handle, wmi_buf_t evt_buf)
{
	__wmi_control_rx(wmi_handle, evt_buf);
}

/**
 * __wmi_control_rx() - process serialize wmi event callback
 * @wmi_handle: wmi handle
 * @evt_buf: fw event buffer
 *
 * Return: none
 */
void __wmi_control_rx(struct wmi_unified *wmi_handle, wmi_buf_t evt_buf)
{
	uint32_t id;
	uint8_t *data;
	uint32_t len;
	void *wmi_cmd_struct_ptr = NULL;
#ifndef WMI_NON_TLV_SUPPORT
	int tlv_ok_status = 0;
#endif
	uint32_t idx = 0;

	id = WMI_GET_FIELD(qdf_nbuf_data(evt_buf), WMI_CMD_HDR, COMMANDID);

	if (qdf_nbuf_pull_head(evt_buf, sizeof(WMI_CMD_HDR)) == NULL)
		goto end;

	data = qdf_nbuf_data(evt_buf);
	len = qdf_nbuf_len(evt_buf);

#ifndef WMI_NON_TLV_SUPPORT
	if (wmi_handle->target_type == WMI_TLV_TARGET) {
		/* Validate and pad(if necessary) the TLVs */
		tlv_ok_status =
			wmitlv_check_and_pad_event_tlvs(wmi_handle->scn_handle,
							data, len, id,
							&wmi_cmd_struct_ptr);
		if (tlv_ok_status != 0) {
			QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
				"%s: Error: id=0x%d, wmitlv check status=%d\n",
				__func__, id, tlv_ok_status);
			goto end;
		}
	}
#endif

	idx = wmi_unified_get_event_handler_ix(wmi_handle, id);
	if (idx == A_ERROR) {
		QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR,
		   "%s : event handler is not registered: event id 0x%x\n",
			__func__, id);
		goto end;
	}
#ifdef WMI_INTERFACE_EVENT_LOGGING
	if (wmi_handle->log_info.wmi_logging_enable) {
		qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock);
		/* Exclude 4 bytes of TLV header */
		if (wmi_handle->ops->is_management_record(id)) {
			WMI_MGMT_EVENT_RECORD(wmi_handle, id, ((uint8_t *) data
				+ wmi_handle->log_info.buf_offset_event));
		} else {
			WMI_EVENT_RECORD(wmi_handle, id, ((uint8_t *) data +
					wmi_handle->log_info.buf_offset_event));
		}
		qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock);
	}
#endif
	/* Call the WMI registered event handler */
	if (wmi_handle->target_type == WMI_TLV_TARGET)
		wmi_handle->event_handler[idx] (wmi_handle->scn_handle,
			wmi_cmd_struct_ptr, len);
	else
		wmi_handle->event_handler[idx] (wmi_handle->scn_handle,
			data, len);

end:
	/* Free event buffer and allocated event tlv */
#ifndef WMI_NON_TLV_SUPPORT
	if (wmi_handle->target_type == WMI_TLV_TARGET)
		wmitlv_free_allocated_event_tlvs(id, &wmi_cmd_struct_ptr);
#endif

	qdf_nbuf_free(evt_buf);

}

/**
 * wmi_rx_event_work() - process rx event in rx work queue context
 * @arg: opaque pointer to wmi handle
 *
 * This function process any fw event to serialize it through rx worker thread.
 *
 * Return: none
 */
static void wmi_rx_event_work(void *arg)
{
	wmi_buf_t buf;
	struct wmi_unified *wmi = arg;

	qdf_spin_lock_bh(&wmi->eventq_lock);
	buf = qdf_nbuf_queue_remove(&wmi->event_queue);
	qdf_spin_unlock_bh(&wmi->eventq_lock);
	while (buf) {
		__wmi_control_rx(wmi, buf);
		qdf_spin_lock_bh(&wmi->eventq_lock);
		buf = qdf_nbuf_queue_remove(&wmi->event_queue);
		qdf_spin_unlock_bh(&wmi->eventq_lock);
	}
}

#ifdef FEATURE_RUNTIME_PM
/**
 * wmi_runtime_pm_init() - initialize runtime pm wmi variables
 * @wmi_handle: wmi context
 */
static void wmi_runtime_pm_init(struct wmi_unified *wmi_handle)
{
	qdf_atomic_init(&wmi_handle->runtime_pm_inprogress);
}

/**
 * wmi_set_runtime_pm_inprogress() - set runtime pm progress flag
 * @wmi_handle: wmi context
 * @val: runtime pm progress flag
 */
void wmi_set_runtime_pm_inprogress(wmi_unified_t wmi_handle, A_BOOL val)
{
	qdf_atomic_set(&wmi_handle->runtime_pm_inprogress, val);
}

/**
 * wmi_get_runtime_pm_inprogress() - get runtime pm progress flag
 * @wmi_handle: wmi context
 */
inline bool wmi_get_runtime_pm_inprogress(wmi_unified_t wmi_handle)
{
	return qdf_atomic_read(&wmi_handle->runtime_pm_inprogress);
}
#else
static void wmi_runtime_pm_init(struct wmi_unified *wmi_handle)
{
}
#endif

/**
 * wmi_unified_get_soc_handle: Get WMI SoC handle
 * @param wmi_handle: WMI context got from wmi_attach
 *
 * return: Pointer to Soc handle
 */
void *wmi_unified_get_soc_handle(struct wmi_unified *wmi_handle)
{
	return wmi_handle->soc;
}

/**
 * wmi_interface_logging_init: Interface looging init
 * @param wmi_handle: Pointer to wmi handle object
 *
 * return: None
 */
#ifdef WMI_INTERFACE_EVENT_LOGGING
static inline void wmi_interface_logging_init(struct wmi_unified *wmi_handle)
{
	if (QDF_STATUS_SUCCESS == wmi_log_init(wmi_handle)) {
		qdf_spinlock_create(&wmi_handle->log_info.wmi_record_lock);
		wmi_debugfs_init(wmi_handle);
	}
}
#else
void wmi_interface_logging_init(struct wmi_unified *wmi_handle)
{
}
#endif

/**
 * wmi_target_params_init: Target specific params init
 * @param wmi_soc: Pointer to wmi soc object
 * @param wmi_handle: Pointer to wmi handle object
 *
 * return: None
 */
#ifndef CONFIG_MCL
static inline void wmi_target_params_init(struct wmi_soc *soc,
				struct wmi_unified *wmi_handle)
{
	/* WMI service bitmap recieved from target */
	wmi_handle->wmi_service_bitmap = soc->wmi_service_bitmap;
	wmi_handle->pdev_param = soc->pdev_param;
	wmi_handle->vdev_param = soc->vdev_param;
	wmi_handle->services   = soc->services;
}
#else
static inline void wmi_target_params_init(struct wmi_soc *soc,
				struct wmi_unified *wmi_handle)
{
}
#endif

/**
 * wmi_unified_get_pdev_handle: Get WMI SoC handle
 * @param wmi_soc: Pointer to wmi soc object
 * @param pdev_idx: pdev index
 *
 * return: Pointer to wmi handle or NULL on failure
 */
void *wmi_unified_get_pdev_handle(struct wmi_soc *soc, uint32_t pdev_idx)
{
	struct wmi_unified *wmi_handle;

	if (pdev_idx >= WMI_MAX_RADIOS)
		return NULL;

	/* If wmi pdev is already allocated, just return the handle */
	if (soc->wmi_pdev[pdev_idx] != NULL)
		return soc->wmi_pdev[pdev_idx];

	wmi_handle =
		(struct wmi_unified *) qdf_mem_malloc(
			sizeof(struct wmi_unified));
	if (wmi_handle == NULL) {
		qdf_print("allocation of wmi handle failed %zu\n",
			sizeof(struct wmi_unified));
		return NULL;
	}
	wmi_handle->scn_handle = soc->scn_handle;
	wmi_handle->event_id = soc->event_id;
	wmi_handle->event_handler = soc->event_handler;
	wmi_handle->ctx = soc->ctx;
	wmi_handle->ops = soc->ops;
	qdf_spinlock_create(&wmi_handle->eventq_lock);
	qdf_nbuf_queue_init(&wmi_handle->event_queue);

	qdf_create_work(0, &wmi_handle->rx_event_work,
			wmi_rx_event_work, wmi_handle);
	wmi_handle->wmi_rx_work_queue =
		qdf_create_workqueue("wmi_rx_event_work_queue");
	if (NULL == wmi_handle->wmi_rx_work_queue) {
		WMI_LOGE("failed to create wmi_rx_event_work_queue");
		goto error;
	}
	wmi_handle->wmi_events = soc->wmi_events;
	wmi_target_params_init(soc, wmi_handle);
	wmi_interface_logging_init(wmi_handle);
	qdf_atomic_init(&wmi_handle->pending_cmds);
	qdf_atomic_init(&wmi_handle->is_target_suspended);
	wmi_handle->target_type = soc->target_type;
	wmi_handle->wmi_stopinprogress = 0;
	wmi_handle->wmi_endpoint_id = soc->wmi_endpoint_id[pdev_idx];
	wmi_handle->htc_handle = soc->htc_handle;
	wmi_handle->max_msg_len = soc->max_msg_len[pdev_idx];
	wmi_handle->soc = soc;

	soc->wmi_pdev[pdev_idx] = wmi_handle;

	return wmi_handle;

error:
	qdf_mem_free(wmi_handle);

	return NULL;
}

/**
 * wmi_unified_attach() -  attach for unified WMI
 * @scn_handle: handle to SCN
 * @osdev: OS device context
 * @target_type: TLV or not-TLV based target
 * @use_cookie: cookie based allocation enabled/disabled
 * @ops: umac rx callbacks
 * @psoc: objmgr psoc
 *
 * @Return: wmi handle.
 */
void *wmi_unified_attach(void *scn_handle,
			 osdev_t osdev, enum wmi_target_type target_type,
			 bool use_cookie, struct wmi_rx_ops *rx_ops,
			 struct wlan_objmgr_psoc *psoc)
{
	struct wmi_unified *wmi_handle;
	struct wmi_soc *soc;

	soc = (struct wmi_soc *) qdf_mem_malloc(sizeof(struct wmi_soc));
	if (soc == NULL) {
		qdf_print("Allocation of wmi_soc failed %zu\n",
				sizeof(struct wmi_soc));
		return NULL;
	}
#ifdef CONFIG_MCL
	wmi_handle =
		(struct wmi_unified *)os_malloc(NULL,
				sizeof(struct wmi_unified),
				GFP_ATOMIC);
#else
	wmi_handle =
		(struct wmi_unified *) qdf_mem_malloc(
			sizeof(struct wmi_unified));
#endif
	if (wmi_handle == NULL) {
		qdf_mem_free(soc);
		qdf_print("allocation of wmi handle failed %zu\n",
			sizeof(struct wmi_unified));
		return NULL;
	}
	wmi_handle->soc = soc;
	wmi_handle->event_id = soc->event_id;
	wmi_handle->event_handler = soc->event_handler;
	wmi_handle->ctx = soc->ctx;
	wmi_handle->wmi_events = soc->wmi_events;
	wmi_target_params_init(soc, wmi_handle);
	wmi_handle->scn_handle = scn_handle;
	soc->scn_handle = scn_handle;
	qdf_atomic_init(&wmi_handle->pending_cmds);
	qdf_atomic_init(&wmi_handle->is_target_suspended);
	wmi_runtime_pm_init(wmi_handle);
	qdf_spinlock_create(&wmi_handle->eventq_lock);
	qdf_nbuf_queue_init(&wmi_handle->event_queue);
	qdf_create_work(0, &wmi_handle->rx_event_work,
			wmi_rx_event_work, wmi_handle);
	wmi_handle->wmi_rx_work_queue =
		qdf_create_workqueue("wmi_rx_event_work_queue");
	if (NULL == wmi_handle->wmi_rx_work_queue) {
		WMI_LOGE("failed to create wmi_rx_event_work_queue");
		goto error;
	}
	wmi_interface_logging_init(wmi_handle);
	/* Attach mc_thread context processing function */
	wmi_handle->rx_ops.wma_process_fw_event_handler_cbk =
				rx_ops->wma_process_fw_event_handler_cbk;
	wmi_handle->target_type = target_type;
	soc->target_type = target_type;
	if (target_type == WMI_TLV_TARGET)
		wmi_tlv_attach(wmi_handle);
	else
		wmi_non_tlv_attach(wmi_handle);
	/* Assign target cookie capablity */
	wmi_handle->use_cookie = use_cookie;
	wmi_handle->osdev = osdev;
	wmi_handle->wmi_stopinprogress = 0;
	/* Increase the ref count once refcount infra is present */
	soc->wmi_psoc = psoc;
	qdf_spinlock_create(&soc->ctx_lock);

	soc->ops = wmi_handle->ops;
	soc->wmi_pdev[0] = wmi_handle;

	return wmi_handle;

error:
	qdf_mem_free(soc);
	qdf_mem_free(wmi_handle);

	return NULL;
}

/**
 * wmi_unified_detach() -  detach for unified WMI
 *
 * @wmi_handle  : handle to wmi.
 *
 * @Return: none.
 */
void wmi_unified_detach(struct wmi_unified *wmi_handle)
{
	wmi_buf_t buf;
	struct wmi_soc *soc;
	uint8_t i;

	soc = wmi_handle->soc;
	for (i = 0; i < WMI_MAX_RADIOS; i++) {
		if (soc->wmi_pdev[i]) {
			qdf_flush_workqueue(0,
				soc->wmi_pdev[i]->wmi_rx_work_queue);
			qdf_destroy_workqueue(0,
				soc->wmi_pdev[i]->wmi_rx_work_queue);
			wmi_debugfs_remove(soc->wmi_pdev[i]);
			buf = qdf_nbuf_queue_remove(
					&soc->wmi_pdev[i]->event_queue);
			while (buf) {
				qdf_nbuf_free(buf);
				buf = qdf_nbuf_queue_remove(
						&soc->wmi_pdev[i]->event_queue);
			}

			wmi_log_buffer_free(soc->wmi_pdev[i]);
			qdf_spinlock_destroy(&soc->wmi_pdev[i]->eventq_lock);
			qdf_mem_free(soc->wmi_pdev[i]);
		}
	}
	qdf_spinlock_destroy(&soc->ctx_lock);
	/* Decrease the ref count once refcount infra is present */
	soc->wmi_psoc = NULL;
	qdf_mem_free(soc);
}

/**
 * wmi_unified_remove_work() - detach for WMI work
 * @wmi_handle: handle to WMI
 *
 * A function that does not fully detach WMI, but just remove work
 * queue items associated with it. This is used to make sure that
 * before any other processing code that may destroy related contexts
 * (HTC, etc), work queue processing on WMI has already been stopped.
 *
 * Return: None
 */
void
wmi_unified_remove_work(struct wmi_unified *wmi_handle)
{
	wmi_buf_t buf;

	QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_INFO,
		"Enter: %s", __func__);
	qdf_flush_workqueue(0, wmi_handle->wmi_rx_work_queue);
	qdf_spin_lock_bh(&wmi_handle->eventq_lock);
	buf = qdf_nbuf_queue_remove(&wmi_handle->event_queue);
	while (buf) {
		qdf_nbuf_free(buf);
		buf = qdf_nbuf_queue_remove(&wmi_handle->event_queue);
	}
	qdf_spin_unlock_bh(&wmi_handle->eventq_lock);
	QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_INFO,
		"Done: %s", __func__);
}

/**
 * wmi_htc_tx_complete() - Process htc tx completion
 *
 * @ctx: handle to wmi
 * @htc_packet: pointer to htc packet
 *
 * @Return: none.
 */
static void wmi_htc_tx_complete(void *ctx, HTC_PACKET *htc_pkt)
{
	struct wmi_soc *soc = (struct wmi_soc *) ctx;
	wmi_buf_t wmi_cmd_buf = GET_HTC_PACKET_NET_BUF_CONTEXT(htc_pkt);
	u_int8_t *buf_ptr;
	u_int32_t len;
	struct wmi_unified *wmi_handle;
#ifdef WMI_INTERFACE_EVENT_LOGGING
	uint32_t cmd_id;
#endif

	ASSERT(wmi_cmd_buf);
	wmi_handle = wmi_get_pdev_ep(soc, htc_pkt->Endpoint);
	if (wmi_handle == NULL) {
		WMI_LOGE("%s: Unable to get wmi handle\n", __func__);
		QDF_ASSERT(0);
		return;
	}
#ifdef WMI_INTERFACE_EVENT_LOGGING
	if (wmi_handle && wmi_handle->log_info.wmi_logging_enable) {
		cmd_id = WMI_GET_FIELD(qdf_nbuf_data(wmi_cmd_buf),
				WMI_CMD_HDR, COMMANDID);

	qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock);
	/* Record 16 bytes of WMI cmd tx complete data
	- exclude TLV and WMI headers */
	if (wmi_handle->ops->is_management_record(cmd_id)) {
		WMI_MGMT_COMMAND_TX_CMP_RECORD(wmi_handle, cmd_id,
			((uint32_t *) qdf_nbuf_data(wmi_cmd_buf) +
			wmi_handle->log_info.buf_offset_command));
	} else {
		WMI_COMMAND_TX_CMP_RECORD(wmi_handle, cmd_id,
			((uint32_t *) qdf_nbuf_data(wmi_cmd_buf) +
			wmi_handle->log_info.buf_offset_command));
	}

	qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock);
	}
#endif
	buf_ptr = (u_int8_t *) wmi_buf_data(wmi_cmd_buf);
	len = qdf_nbuf_len(wmi_cmd_buf);
	qdf_mem_zero(buf_ptr, len);
	qdf_nbuf_free(wmi_cmd_buf);
	qdf_mem_free(htc_pkt);
	qdf_atomic_dec(&wmi_handle->pending_cmds);
}

/**
 * wmi_connect_pdev_htc_service() -  WMI API to get connect to HTC service
 *
 * @wmi_handle: handle to WMI.
 * @pdev_idx: Pdev index
 *
 * @Return: status.
 */
static int wmi_connect_pdev_htc_service(struct wmi_soc *soc,
						uint32_t pdev_idx)
{
	int status;
	uint32_t svc_id[] = {WMI_CONTROL_SVC, WMI_CONTROL_SVC_WMAC1,
						WMI_CONTROL_SVC_WMAC2};
	HTC_SERVICE_CONNECT_RESP response;
	HTC_SERVICE_CONNECT_REQ connect;

	OS_MEMZERO(&connect, sizeof(connect));
	OS_MEMZERO(&response, sizeof(response));

	/* meta data is unused for now */
	connect.pMetaData = NULL;
	connect.MetaDataLength = 0;
	/* these fields are the same for all service endpoints */
	connect.EpCallbacks.pContext = soc;
	connect.EpCallbacks.EpTxCompleteMultiple =
		NULL /* Control path completion ar6000_tx_complete */;
	connect.EpCallbacks.EpRecv = wmi_control_rx /* Control path rx */;
	connect.EpCallbacks.EpRecvRefill = NULL /* ar6000_rx_refill */;
	connect.EpCallbacks.EpSendFull = NULL /* ar6000_tx_queue_full */;
	connect.EpCallbacks.EpTxComplete =
		wmi_htc_tx_complete /* ar6000_tx_queue_full */;

	/* connect to control service */
	connect.service_id = svc_id[pdev_idx];
	status = htc_connect_service(soc->htc_handle, &connect,
				&response);


	if (status != EOK) {
		qdf_print
			("Failed to connect to WMI CONTROL service status:%d\n",
			status);
		return status;
	}

	soc->wmi_endpoint_id[pdev_idx] = response.Endpoint;
	soc->max_msg_len[pdev_idx] = response.MaxMsgLength;

	return 0;
}

/**
 * wmi_unified_connect_htc_service() -  WMI API to get connect to HTC service
 *
 * @wmi_handle: handle to WMI.
 *
 * @Return: status.
 */
QDF_STATUS
wmi_unified_connect_htc_service(struct wmi_unified *wmi_handle,
				void *htc_handle)
{
	uint32_t i;
	uint8_t wmi_ep_count;

	wmi_handle->soc->htc_handle = htc_handle;

	wmi_ep_count = htc_get_wmi_endpoint_count(htc_handle);
	if (wmi_ep_count > WMI_MAX_RADIOS)
		return QDF_STATUS_E_FAULT;

	for (i = 0; i < wmi_ep_count; i++)
		wmi_connect_pdev_htc_service(wmi_handle->soc, i);

	wmi_handle->htc_handle = htc_handle;
	wmi_handle->wmi_endpoint_id = wmi_handle->soc->wmi_endpoint_id[0];
	wmi_handle->max_msg_len = wmi_handle->soc->max_msg_len[0];

	return QDF_STATUS_SUCCESS;
}

/**
 * wmi_get_host_credits() -  WMI API to get updated host_credits
 *
 * @wmi_handle: handle to WMI.
 *
 * @Return: updated host_credits.
 */
int wmi_get_host_credits(wmi_unified_t wmi_handle)
{
	int host_credits = 0;

	htc_get_control_endpoint_tx_host_credits(wmi_handle->htc_handle,
						 &host_credits);
	return host_credits;
}

/**
 * wmi_get_pending_cmds() - WMI API to get WMI Pending Commands in the HTC
 *                          queue
 *
 * @wmi_handle: handle to WMI.
 *
 * @Return: Pending Commands in the HTC queue.
 */
int wmi_get_pending_cmds(wmi_unified_t wmi_handle)
{
	return qdf_atomic_read(&wmi_handle->pending_cmds);
}

/**
 * wmi_set_target_suspend() -  WMI API to set target suspend state
 *
 * @wmi_handle: handle to WMI.
 * @val: suspend state boolean.
 *
 * @Return: none.
 */
void wmi_set_target_suspend(wmi_unified_t wmi_handle, A_BOOL val)
{
	qdf_atomic_set(&wmi_handle->is_target_suspended, val);
}

/**
 * WMI API to set crash injection state
 * @param wmi_handle:	handle to WMI.
 * @param val:		crash injection state boolean.
 */
void wmi_tag_crash_inject(wmi_unified_t wmi_handle, A_BOOL flag)
{
	wmi_handle->tag_crash_inject = flag;
}

/**
 * WMI API to set bus suspend state
 * @param wmi_handle:	handle to WMI.
 * @param val:		suspend state boolean.
 */
void wmi_set_is_wow_bus_suspended(wmi_unified_t wmi_handle, A_BOOL val)
{
	qdf_atomic_set(&wmi_handle->is_wow_bus_suspended, val);
}

#ifndef CONFIG_MCL
/**
 * API to flush all the previous packets  associated with the wmi endpoint
 *
 * @param wmi_handle      : handle to WMI.
 */
void
wmi_flush_endpoint(wmi_unified_t wmi_handle)
{
	htc_flush_endpoint(wmi_handle->htc_handle,
		wmi_handle->wmi_endpoint_id, 0);
}

/**
 * generic function to block unified WMI command
 * @param wmi_handle      : handle to WMI.
 * @return 0  on success and -ve on failure.
 */
int
wmi_stop(wmi_unified_t wmi_handle)
{
	QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_INFO,
			"WMI Stop\n");
	wmi_handle->wmi_stopinprogress = 1;
	return 0;
}
#endif