/******************************************************************************
 *
 * This file is provided under a dual license.  When you use or
 * distribute this software, you may choose to be licensed under
 * version 2 of the GNU General Public License ("GPLv2 License")
 * or BSD License.
 *
 * GPLv2 License
 *
 * Copyright(C) 2016 MediaTek Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See http://www.gnu.org/licenses/gpl-2.0.html for more details.
 *
 * BSD LICENSE
 *
 * Copyright(C) 2016 MediaTek Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/
/*! \file   "hif.h"
*    \brief  Functions for the driver to register bus and setup the IRQ
*
*    Functions for the driver to register bus and setup the IRQ
*/


#ifndef _HIF_H
#define _HIF_H

#include "nic_cmd_event.h"
#include "wlan_typedef.h"
#include "nic_tx.h"

typedef enum _ENUM_USB_END_POINT_T {
	USB_DATA_BULK_OUT_EP4 = 4,
	USB_DATA_BULK_OUT_EP5,
	USB_DATA_BULK_OUT_EP6,
	USB_DATA_BULK_OUT_EP7,
	USB_DATA_BULK_OUT_EP8,
	USB_DATA_BULK_OUT_EP9,
} ENUM_USB_END_POINT_T;

/*******************************************************************************
*                         C O M P I L E R   F L A G S
********************************************************************************
*/

/*******************************************************************************
*                    E X T E R N A L   R E F E R E N C E S
********************************************************************************
*/

/*******************************************************************************
*                              C O N S T A N T S
********************************************************************************
*/

#if defined(_HIF_USB)
#define HIF_NAME "USB"
#else
#error "No HIF defined!"
#endif
#define HIF_CR4_FWDL_SECTION_NUM         2
#define HIF_IMG_DL_STATUS_PORT_IDX       0
#define HIF_IST_LOOP_COUNT              (4)
#define HIF_IST_TX_THRESHOLD            (1) /* Min msdu count to trigger Tx during INT polling state */

#define HIF_NUM_OF_QM_RX_PKT_NUM        (1024)

#define HIF_TX_BUFF_COUNT_TC0            256
#define HIF_TX_BUFF_COUNT_TC1            256
#define HIF_TX_BUFF_COUNT_TC2            256
#define HIF_TX_BUFF_COUNT_TC3            256
#define HIF_TX_BUFF_COUNT_TC4            256
#define HIF_TX_BUFF_COUNT_TC5            256

#define HIF_TX_RESOURCE_CTRL             0 /* enable/disable TX resource control */

#if CFG_USB_TX_AGG
#define HIF_TX_PAGE_SIZE_IN_POWER_OF_2   0
#define HIF_TX_PAGE_SIZE                 1	/* in unit of bytes */
#else
#define HIF_TX_PAGE_SIZE_IN_POWER_OF_2   11
#define HIF_TX_PAGE_SIZE                 2048	/* in unit of bytes */
#endif

#define USB_EVENT_TYPE                  (EVENT_EP_TYPE_UNKONW)

#define USB_CMD_EP_OUT                  (USB_DATA_BULK_OUT_EP8)
#define USB_EVENT_EP_IN                 (0x85)
#define USB_DATA_EP_IN                  (0x84)

#define HIF_TX_INIT_CMD_PORT             USB_CMD_EP_OUT

#ifdef CFG_USB_REQ_TX_DATA_FFA_CNT
#define USB_REQ_TX_DATA_FFA_CNT         (CFG_USB_REQ_TX_DATA_FFA_CNT)	/* platform specific USB_REQ_TX_DATA_FFA_CNT */
#else
#define USB_REQ_TX_DATA_FFA_CNT         (10)
#endif

#ifdef CFG_USB_REQ_TX_DATA_CNT
#define USB_REQ_TX_DATA_CNT             (CFG_USB_REQ_TX_DATA_CNT)	/* platform specific USB_REQ_TX_DATA_CNT */
#else
#if CFG_USB_TX_AGG
#define USB_REQ_TX_DATA_CNT             (2)	/* must be >= 2 */
#else
#define USB_REQ_TX_DATA_CNT             (CFG_TX_MAX_PKT_NUM)
#endif
#endif

#define USB_REQ_TX_CMD_CNT              (CFG_TX_MAX_CMD_PKT_NUM)
#define USB_REQ_RX_EVENT_CNT            (1)
#ifdef CFG_USB_REQ_RX_DATA_CNT
#define USB_REQ_RX_DATA_CNT             (CFG_USB_REQ_RX_DATA_CNT)	/* platform specific USB_REQ_RX_DATA_CNT */
#else
#define USB_REQ_RX_DATA_CNT             (2)
#endif

#define USB_RX_AGGREGTAION_LIMIT        (32)	/* Unit: K-bytes */
#define USB_RX_AGGREGTAION_TIMEOUT      (100)	/* Unit: us */
#define USB_RX_AGGREGTAION_PKT_LIMIT    (30)

#define USB_TX_CMD_BUF_SIZE             (1600)
#if CFG_USB_TX_AGG
#define USB_TX_DATA_BUFF_SIZE           (32*1024)
#else
#define USB_TX_DATA_BUF_SIZE            (NIC_TX_DESC_AND_PADDING_LENGTH + NIC_TX_DESC_HEADER_PADDING_LENGTH + \
					 NIC_TX_MAX_SIZE_PER_FRAME + LEN_USB_UDMA_TX_TERMINATOR)
#endif
#define USB_RX_EVENT_BUF_SIZE           (CFG_RX_MAX_PKT_SIZE + 3 + LEN_USB_RX_PADDING_CSO + 4)
#define USB_RX_DATA_BUF_SIZE            (CFG_RX_MAX_PKT_SIZE + \
					 min(USB_RX_AGGREGTAION_LIMIT * 1024, \
					     (USB_RX_AGGREGTAION_PKT_LIMIT * \
					      (CFG_RX_MAX_PKT_SIZE + 3 + LEN_USB_RX_PADDING_CSO) + 4)))

#define LEN_USB_UDMA_TX_TERMINATOR      (4)	/*HW design spec */
#define LEN_USB_RX_PADDING_CSO          (4)	/*HW design spec */

#define USB_RX_EVENT_RFB_RSV_CNT        (0)
#define USB_RX_DATA_RFB_RSV_CNT         (4)

#define DEVICE_VENDOR_REQUEST_IN        (0xc0)
#define DEVICE_VENDOR_REQUEST_OUT       (0x40)
#define VENDOR_TIMEOUT_MS               (1000)
#define BULK_TIMEOUT_MS                 (1500)
#define INTERRUPT_TIMEOUT_MS            (1000)
#define SW_RFB_RECHECK_MS               (10)
#define SW_RFB_LOG_LIMIT_MS             (5000)
#define SW_RFB_BLOCKING_LIMIT_MS        (1000)

/* Vendor Request */
#define VND_REQ_POWER_ON_WIFI           (0x4)
#define VND_REQ_REG_READ                (0x63)
#define VND_REQ_REG_WRITE               (0x66)
#define VND_REQ_FEATURE_SET             (0x91)
#define FEATURE_SET_WVALUE_RESUME       (0x5)
#define VND_REQ_BUF_SIZE		(16)

#define USB_TX_CMD_QUEUE_MASK           (BITS(2, 4))   /* For H2CDMA Tx CMD mapping */

#define USB_DBDC1_TC                    (TC_NUM)/* for DBDC1 */
#define USB_TC_NUM                      (TC_NUM + 1)/* for DBDC1 */

#define HIF_EXTRA_IO_BUFFER_SIZE        (0)

#define HIF_TX_COALESCING_BUFFER_SIZE   (USB_TX_CMD_BUF_SIZE)
#define HIF_RX_COALESCING_BUFFER_SIZE   (USB_RX_EVENT_BUF_SIZE)

/*******************************************************************************
*                             D A T A   T Y P E S
********************************************************************************
*/

/* host interface's private data structure, which is attached to os glue
** layer info structure.
 */

enum usb_state {
	USB_STATE_LINK_DOWN,
	USB_STATE_LINK_UP,
	USB_STATE_PRE_SUSPEND_DONE,
	USB_STATE_PRE_SUSPEND_FAIL,
	USB_STATE_SUSPEND,
	USB_STATE_PRE_RESUME,
	USB_STATE_WIFI_OFF /* Hif power off wifi */
};

enum usb_submit_type {
	SUBMIT_TYPE_TX_CMD,
	SUBMIT_TYPE_TX_DATA,
	SUBMIT_TYPE_RX_EVENT,
	SUBMIT_TYPE_RX_DATA
};

typedef enum _EVENT_EP_TYPE {
	EVENT_EP_TYPE_UNKONW,
	EVENT_EP_TYPE_BULK,
	EVENT_EP_TYPE_INTR,
	EVENT_EP_TYPE_DATA_EP
} EVENT_EP_TYPE;

typedef struct _BUF_CTRL_T {
	UINT_8 *pucBuf;
	UINT_32 u4BufSize;
	UINT_32 u4WrIdx;
	UINT_32 u4ReadSize;
} BUF_CTRL_T, *P_BUF_CTRL_T;

typedef struct _GL_HIF_INFO_T {
	struct usb_interface *intf;
	struct usb_device *udev;

	P_GLUE_INFO_T prGlueInfo;
	enum usb_state state;

	spinlock_t rTxDataQLock;
	spinlock_t rTxCmdQLock;
	spinlock_t rRxEventQLock;
	spinlock_t rRxDataQLock;
	spinlock_t rStateLock;

	PVOID prTxCmdReqHead;
	PVOID arTxDataFfaReqHead;
	PVOID arTxDataReqHead[USB_TC_NUM];
	PVOID prRxEventReqHead;
	PVOID prRxDataReqHead;
	struct list_head rTxCmdFreeQ;
	spinlock_t rTxCmdFreeQLock;
	struct list_head rTxCmdSendingQ;
	spinlock_t rTxCmdSendingQLock;
	struct list_head rTxDataFfaQ;
#if CFG_USB_TX_AGG
	UINT_32 u4AggRsvSize[USB_TC_NUM];
	struct list_head rTxDataFreeQ[USB_TC_NUM];
	struct usb_anchor rTxDataAnchor[USB_TC_NUM];
#else
	struct list_head rTxDataFreeQ;
	struct usb_anchor rTxDataAnchor;
#endif
	/*spinlock_t rTxDataFreeQLock;*/
	struct list_head rRxEventFreeQ;
	/*spinlock_t rRxEventFreeQLock;*/
	struct usb_anchor rRxEventAnchor;
	struct list_head rRxDataFreeQ;
	/*spinlock_t rRxDataFreeQLock;*/
	struct usb_anchor rRxDataAnchor;
	struct list_head rRxEventCompleteQ;
	/*spinlock_t rRxEventCompleteQLock;*/
	struct list_head rRxDataCompleteQ;
	/*spinlock_t rRxDataCompleteQLock;*/
	struct list_head rTxCmdCompleteQ;
	struct list_head rTxDataCompleteQ;

	BUF_CTRL_T rTxCmdBufCtrl[USB_REQ_TX_CMD_CNT];
	BUF_CTRL_T rTxDataFfaBufCtrl[USB_REQ_TX_DATA_FFA_CNT];
#if CFG_USB_TX_AGG
	BUF_CTRL_T rTxDataBufCtrl[USB_TC_NUM][USB_REQ_TX_DATA_CNT];
#else
	BUF_CTRL_T rTxDataBufCtrl[USB_REQ_TX_DATA_CNT];
#endif
	BUF_CTRL_T rRxEventBufCtrl[USB_REQ_RX_EVENT_CNT];
	BUF_CTRL_T rRxDataBufCtrl[USB_REQ_RX_DATA_CNT];

	struct mutex vendor_req_sem;
	void *vendor_req_buf;
	UINT_32 vendor_req_buf_sz;

	BOOLEAN fgIntReadClear;
	BOOLEAN fgMbxReadClear;
	BOOLEAN fgEventEpDetected;
	EVENT_EP_TYPE eEventEpType;
} GL_HIF_INFO_T, *P_GL_HIF_INFO_T;

typedef struct _USB_REQ_T {
	struct list_head list;
	struct urb *prUrb;
	P_BUF_CTRL_T prBufCtrl;
	P_GL_HIF_INFO_T prHifInfo;
	PVOID prPriv;
	QUE_T rSendingDataMsduInfoList;
} USB_REQ_T, *P_USB_REQ_T;

/* USB_REQ_T prPriv field for TxData */
#define FFA_MASK                        BIT(7)           /* Indicate if this UsbReq is from FFA queue. */
#define TC_MASK                         BITS(0, 6)       /* Indicate which TC this UsbReq belongs to */


/*******************************************************************************
*                            P U B L I C   D A T A
********************************************************************************
*/

/*******************************************************************************
*                           P R I V A T E   D A T A
********************************************************************************
*/

/*******************************************************************************
*                                 M A C R O S
********************************************************************************
*/

#define USB_TRANS_MSDU_TC(_prMsduInfo) ((_prMsduInfo)->ucWmmQueSet ? USB_DBDC1_TC : (_prMsduInfo)->ucTC)

/*******************************************************************************
*                   F U N C T I O N   D E C L A R A T I O N S
********************************************************************************
*/

WLAN_STATUS glRegisterBus(probe_card pfProbe, remove_card pfRemove);

VOID glUnregisterBus(remove_card pfRemove);

VOID glSetHifInfo(P_GLUE_INFO_T prGlueInfo, ULONG ulCookie);

VOID glClearHifInfo(P_GLUE_INFO_T prGlueInfo);

BOOL glBusInit(PVOID pvData);

VOID glBusRelease(PVOID pData);

INT_32 glBusSetIrq(PVOID pvData, PVOID pfnIsr, PVOID pvCookie);

VOID glBusFreeIrq(PVOID pvData, PVOID pvCookie);

VOID glSetPowerState(IN P_GLUE_INFO_T prGlueInfo, IN UINT_32 ePowerMode);

VOID glUdmaTxRxEnable(P_GLUE_INFO_T prGlueInfo, BOOLEAN enable);

VOID glUdmaRxAggEnable(P_GLUE_INFO_T prGlueInfo, BOOLEAN enable);

int mtk_usb_vendor_request(IN P_GLUE_INFO_T prGlueInfo, IN UCHAR uEndpointAddress, IN UCHAR RequestType,
			    IN UCHAR Request, IN UINT_16 Value, IN UINT_16 Index, IN PVOID TransferBuffer,
			    IN UINT_32 TransferBufferLength);

VOID glUsbEnqueueReq(P_GL_HIF_INFO_T prHifInfo, struct list_head *prHead, P_USB_REQ_T prUsbReq,
		     spinlock_t *prLock, BOOLEAN fgHead);
P_USB_REQ_T glUsbDequeueReq(P_GL_HIF_INFO_T prHifInfo, struct list_head *prHead, spinlock_t *prLock);
BOOLEAN glUsbBorrowFfaReq(P_GL_HIF_INFO_T prHifInfo, UINT_8 ucTc);

VOID glUsbSetState(P_GL_HIF_INFO_T prHifInfo, enum usb_state state);

INT_32 glUsbSubmitUrb(P_GL_HIF_INFO_T prHifInfo, struct urb *urb, enum usb_submit_type type);

WLAN_STATUS halTxUSBSendCmd(IN P_GLUE_INFO_T prGlueInfo, IN UINT_8 ucTc, IN P_CMD_INFO_T prCmdInfo);
VOID halTxUSBSendCmdComplete(struct urb *urb);
VOID halTxUSBProcessCmdComplete(IN P_ADAPTER_T prAdapter, P_USB_REQ_T prUsbReq);

WLAN_STATUS halTxUSBSendData(IN P_GLUE_INFO_T prGlueInfo, IN P_MSDU_INFO_T prMsduInfo);
WLAN_STATUS halTxUSBKickData(IN P_GLUE_INFO_T prGlueInfo);
VOID halTxUSBSendDataComplete(struct urb *urb);
VOID halTxUSBProcessMsduDone(IN P_GLUE_INFO_T prGlueInfo, P_USB_REQ_T prUsbReq);
VOID halTxUSBProcessDataComplete(IN P_ADAPTER_T prAdapter, P_USB_REQ_T prUsbReq);

UINT_32 halRxUSBEnqueueRFB(IN P_ADAPTER_T prAdapter, IN PUINT_8 pucBuf, IN UINT_32 u4Length,
	IN UINT_32 u4MinRfbCnt);
WLAN_STATUS halRxUSBReceiveEvent(IN P_ADAPTER_T prAdapter, IN BOOLEAN fgFillUrb);
VOID halRxUSBReceiveEventComplete(struct urb *urb);
WLAN_STATUS halRxUSBReceiveData(IN P_ADAPTER_T prAdapter);
VOID halRxUSBReceiveDataComplete(struct urb *urb);
VOID halRxUSBProcessEventDataComplete(IN P_ADAPTER_T prAdapter,
	struct list_head *prCompleteQ, struct list_head *prFreeQ, UINT_32 u4MinRfbCnt);

VOID halUSBPreSuspendCmd(IN P_ADAPTER_T prAdapter);
VOID halUSBPreSuspendDone(IN P_ADAPTER_T prAdapter, IN P_CMD_INFO_T prCmdInfo, IN PUINT_8 pucEventBuf);
VOID halUSBPreSuspendTimeout(IN P_ADAPTER_T prAdapter, IN P_CMD_INFO_T prCmdInfo);

void glGetDev(PVOID ctx, struct device **dev);
void glGetHifDev(P_GL_HIF_INFO_T prHif, struct device **dev);

VOID halGetCompleteStatus(IN P_ADAPTER_T prAdapter, OUT PUINT_32 pu4IntStatus);

UINT_16 glGetUsbDeviceVendorId(struct usb_device *dev);
UINT_16 glGetUsbDeviceProductId(struct usb_device *dev);

INT_32 glGetUsbDeviceManufacturerName(struct usb_device *dev, UCHAR *buffer, UINT_32 bufLen);
INT_32 glGetUsbDeviceProductName(struct usb_device *dev, UCHAR *buffer, UINT_32 bufLen);
INT_32 glGetUsbDeviceSerialNumber(struct usb_device *dev, UCHAR *buffer, UINT_32 bufLen);


/*******************************************************************************
*                              F U N C T I O N S
********************************************************************************
*/
#endif /* _HIF_H */