/*
 * Copyright (c) 2013-2014,2016-2018 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.
 */

#ifndef TXRX_TL_SHIM_H
#define TXRX_TL_SHIM_H

#include <ol_txrx_osif_api.h>
#include <ol_txrx_ctrl_api.h>
#include <adf_os_lock.h>
#include <adf_os_atomic.h>
#include <vos_sched.h>

/* Time(in ms) to detect DOS attack */
#define TLSHIM_MGMT_FRAME_DETECT_DOS_TIMER 1000

#ifdef FEATURE_WLAN_ESE
typedef struct deferred_iapp_work {
    pVosContextType pVosGCtx;
    adf_nbuf_t nbuf;
    struct ol_txrx_vdev_t *vdev;
    bool inUse;
    struct work_struct deferred_work;
} deferred_iapp_work;
#endif

struct tlshim_buf {
	struct list_head list;
	adf_nbuf_t buf;
};

#define TLSHIM_FLUSH_CACHE_IN_PROGRESS 0
struct tlshim_sta_info {
	bool registered;
	bool suspend_flush;
	WLANTL_STARxCBType data_rx;
	/* To protect stainfo data like registered and data_rx */
	adf_os_spinlock_t stainfo_lock;
	struct list_head cached_bufq;
	unsigned long flags;
	v_S7_t first_rssi;
	v_U8_t vdev_id;
};

#ifdef QCA_LL_TX_FLOW_CT
struct tlshim_session_flow_Control {
	WLANTL_TxFlowControlCBType flowControl;
	v_U8_t                     sessionId;
	void                      *adpaterCtxt;
	void                      *vdev;
	adf_os_spinlock_t          fc_lock;
};
#endif /* QCA_LL_TX_FLOW_CT */

#ifdef IPA_UC_OFFLOAD
typedef void(*ipa_uc_fw_op_cb)(v_U8_t *op_msg, void *usr_ctxt);
#endif /* IPA_UC_OFFLOAD */

struct txrx_tl_shim_ctx {
	void *cfg_ctx;
	ol_txrx_tx_fp tx;
	WLANTL_MgmtFrmRxCBType mgmt_rx;
	struct tlshim_sta_info sta_info[WLAN_MAX_STA_COUNT];
	adf_os_spinlock_t bufq_lock;
	adf_os_spinlock_t mgmt_lock;
	struct work_struct cache_flush_work;

#ifdef FEATURE_WLAN_ESE
    /*
     * work structures to defer IAPP processing to
     * non interrupt context
     */
struct deferred_iapp_work iapp_work;
#endif
	v_BOOL_t ip_checksum_offload;
	u_int8_t   *last_beacon_data;
	u_int32_t   last_beacon_len;
	u_int32_t delay_interval;
	v_BOOL_t enable_rxthread;
	adf_os_atomic_t *vdev_active;
#ifdef QCA_LL_TX_FLOW_CT
	struct tlshim_session_flow_Control *session_flow_control;
#endif /* QCA_LL_TX_FLOW_CT */

#ifdef QCA_SUPPORT_TXRX_VDEV_PAUSE_LL
	vos_event_t  *peer_authorized_events;
#endif
#ifdef IPA_UC_OFFLOAD
	ipa_uc_fw_op_cb fw_op_cb;
	void *usr_ctxt;
#endif /* IPA_UC_OFFLOAD */
	WLANTL_STARxCBType rx_monitor_cb;
};

/*
 * APIs used by CLD specific components, as of now these are used only
 * in WMA.
 */
void WLANTL_RegisterVdev(void *vos_ctx, void *vdev);
void WLANTL_UnRegisterVdev(void *vos_ctx, u_int8_t vdev_id);
VOS_STATUS tl_shim_get_vdevid(struct ol_txrx_peer_t *peer, u_int8_t *vdev_id);

/*
 * tlshim_mgmt_roam_event_ind() is called from WMA layer when
 * BETTER_AP_FOUND event is received from roam engine.
 */
int tlshim_mgmt_roam_event_ind(void *context, u_int32_t vdev_id);
void *tl_shim_get_vdev_by_addr(void *vos_context, uint8_t *mac_addr);
void *tl_shim_get_vdev_by_sta_id(void *vos_context, uint8_t sta_id);
int tlshim_get_ll_queue_pause_bitmap(uint8_t session_id,
	uint8_t *pause_bitmap, __adf_time_t *pause_timestamp);

A_STATUS tlshim_get_intra_bss_fwd_pkts_count(uint8_t session_id,
		unsigned long *fwd_tx_packets, unsigned long *fwd_rx_packets);

#ifdef QCA_SUPPORT_TXRX_VDEV_PAUSE_LL
void tl_shim_set_peer_authorized_event(void *vos_ctx, v_U8_t session_id);
#else
static inline void tl_shim_set_peer_authorized_event(void *vos_ctx, v_U8_t session_id)
{
}
#endif

static inline
void tlshim_set_bundle_require(uint8_t vdev_id, unsigned long tx_bytes,
			uint32_t time_in_ms, uint32_t high_th, uint32_t low_th)
{
	ol_tx_vdev_set_bundle_require(vdev_id, tx_bytes,
				 time_in_ms, high_th, low_th);
}

static inline void tlshim_reset_bundle_require(void)
{
	void *vos_ctx = vos_get_global_context(VOS_MODULE_ID_TL, NULL);
	void *pdev;

	if (!vos_ctx)
		return;

	pdev = vos_get_context(VOS_MODULE_ID_TXRX, vos_ctx);
	if (!pdev)
		return;

	ol_tx_pdev_reset_bundle_require(pdev);
}

#ifdef QCA_SUPPORT_TXRX_DRIVER_TCP_DEL_ACK
static inline
void tlshim_set_driver_del_ack_enable(uint8_t vdev_id, unsigned long rx_packets,
			uint32_t time_in_ms, uint32_t high_th, uint32_t low_th)
{
	ol_tx_vdev_set_driver_del_ack_enable(vdev_id, rx_packets,
				 time_in_ms, high_th, low_th);
}

static inline void tlshim_driver_del_ack_disable(void)
{
	void *vos_ctx = vos_get_global_context(VOS_MODULE_ID_TL, NULL);
	void *pdev;

	if (!vos_ctx)
		return;

	pdev = vos_get_context(VOS_MODULE_ID_TXRX, vos_ctx);
	if (!pdev)
		return;

	ol_tx_pdev_reset_driver_del_ack(pdev);
}
#else
static inline
void tlshim_set_driver_del_ack_enable(uint8_t vdev_id, unsigned long rx_packets,
			uint32_t time_in_ms, uint32_t high_th, uint32_t low_th)
{
}

static inline void tlshim_driver_del_ack_disable(void)
{
}
#endif

static inline void *tlshim_get_rxmon_cbk(void)
{
	void *vos_ctx = vos_get_global_context(VOS_MODULE_ID_TL, NULL);
	struct txrx_tl_shim_ctx *tlshim;

	if (!vos_ctx)
		return NULL;

	tlshim = vos_get_context(VOS_MODULE_ID_TL, vos_ctx);
	if (tlshim)
		return (void *)tlshim->rx_monitor_cb;

	return NULL;
}

#endif