/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * 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 the GNU General Public License for
 * more details.
 *
 ******************************************************************************/

#ifndef _RTW_IO_H_
#define _RTW_IO_H_

#define NUM_IOREQ		8

#define MAX_PROT_SZ	(64-16)

#define _IOREADY			0
#define _IO_WAIT_COMPLETE   1
#define _IO_WAIT_RSP        2

/*  IO COMMAND TYPE */
#define _IOSZ_MASK_		(0x7F)
#define _IO_WRITE_		BIT(7)
#define _IO_FIXED_		BIT(8)
#define _IO_BURST_		BIT(9)
#define _IO_BYTE_		BIT(10)
#define _IO_HW_			BIT(11)
#define _IO_WORD_		BIT(12)
#define _IO_SYNC_		BIT(13)
#define _IO_CMDMASK_	(0x1F80)


/*
	For prompt mode accessing, caller shall free io_req
	Otherwise, io_handler will free io_req
*/


/*  IO STATUS TYPE */
#define _IO_ERR_		BIT(2)
#define _IO_SUCCESS_	BIT(1)
#define _IO_DONE_		BIT(0)


#define IO_RD32			(_IO_SYNC_ | _IO_WORD_)
#define IO_RD16			(_IO_SYNC_ | _IO_HW_)
#define IO_RD8			(_IO_SYNC_ | _IO_BYTE_)

#define IO_RD32_ASYNC	(_IO_WORD_)
#define IO_RD16_ASYNC	(_IO_HW_)
#define IO_RD8_ASYNC	(_IO_BYTE_)

#define IO_WR32			(_IO_WRITE_ | _IO_SYNC_ | _IO_WORD_)
#define IO_WR16			(_IO_WRITE_ | _IO_SYNC_ | _IO_HW_)
#define IO_WR8			(_IO_WRITE_ | _IO_SYNC_ | _IO_BYTE_)

#define IO_WR32_ASYNC	(_IO_WRITE_ | _IO_WORD_)
#define IO_WR16_ASYNC	(_IO_WRITE_ | _IO_HW_)
#define IO_WR8_ASYNC	(_IO_WRITE_ | _IO_BYTE_)

/*

	Only Sync. burst accessing is provided.

*/

#define IO_WR_BURST(x)		(_IO_WRITE_ | _IO_SYNC_ | _IO_BURST_ | ((x) & _IOSZ_MASK_))
#define IO_RD_BURST(x)		(_IO_SYNC_ | _IO_BURST_ | ((x) & _IOSZ_MASK_))


/* below is for the intf_option bit defition... */

#define _INTF_ASYNC_	BIT(0)	/* support async io */

struct intf_priv;
struct intf_hdl;
struct io_queue;

struct _io_ops {
		u8 (*_read8)(struct intf_hdl *pintfhdl, u32 addr);
		u16 (*_read16)(struct intf_hdl *pintfhdl, u32 addr);
		u32 (*_read32)(struct intf_hdl *pintfhdl, u32 addr);

		int (*_write8)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
		int (*_write16)(struct intf_hdl *pintfhdl, u32 addr, u16 val);
		int (*_write32)(struct intf_hdl *pintfhdl, u32 addr, u32 val);
		int (*_writeN)(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata);

		int (*_write8_async)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
		int (*_write16_async)(struct intf_hdl *pintfhdl, u32 addr, u16 val);
		int (*_write32_async)(struct intf_hdl *pintfhdl, u32 addr, u32 val);

		void (*_read_mem)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pmem);
		void (*_write_mem)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pmem);

		void (*_sync_irp_protocol_rw)(struct io_queue *pio_q);

		u32 (*_read_interrupt)(struct intf_hdl *pintfhdl, u32 addr);

		u32 (*_read_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pmem);
		u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pmem);

		u32 (*_write_scsi)(struct intf_hdl *pintfhdl, u32 cnt, u8 *pmem);

		void (*_read_port_cancel)(struct intf_hdl *pintfhdl);
		void (*_write_port_cancel)(struct intf_hdl *pintfhdl);

		u8 (*_sd_f0_read8)(struct intf_hdl *pintfhdl, u32 addr);
};

struct io_req {
	struct list_head	list;
	u32 addr;
	volatile u32 val;
	u32 command;
	u32 status;
	u8 *pbuf;
	_sema	sema;

	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt);
	u8 *cnxt;
};

struct	intf_hdl {
	struct adapter *padapter;
	struct dvobj_priv *pintf_dev;/* 	pointer to &(padapter->dvobjpriv); */

	struct _io_ops	io_ops;
};

struct reg_protocol_rd {

#ifdef __LITTLE_ENDIAN

	/* DW1 */
	u32 	NumOfTrans:4;
	u32 	Reserved1:4;
	u32 	Reserved2:24;
	/* DW2 */
	u32 	ByteCount:7;
	u32 	WriteEnable:1;		/* 0:read, 1:write */
	u32 	FixOrContinuous:1;	/* 0:continuous, 1: Fix */
	u32 	BurstMode:1;
	u32 	Byte1Access:1;
	u32 	Byte2Access:1;
	u32 	Byte4Access:1;
	u32 	Reserved3:3;
	u32 	Reserved4:16;
	/* DW3 */
	u32 	BusAddress;
	/* DW4 */
	/* u32 	Value; */
#else


/* DW1 */
	u32 Reserved1  :4;
	u32 NumOfTrans :4;

	u32 Reserved2  :24;

	/* DW2 */
	u32 WriteEnable : 1;
	u32 ByteCount :7;


	u32 Reserved3 : 3;
	u32 Byte4Access : 1;

	u32 Byte2Access : 1;
	u32 Byte1Access : 1;
	u32 BurstMode :1 ;
	u32 FixOrContinuous : 1;

	u32 Reserved4 : 16;

	/* DW3 */
	u32 	BusAddress;

	/* DW4 */
	/* u32 	Value; */

#endif

};


struct reg_protocol_wt {


#ifdef __LITTLE_ENDIAN

	/* DW1 */
	u32 	NumOfTrans:4;
	u32 	Reserved1:4;
	u32 	Reserved2:24;
	/* DW2 */
	u32 	ByteCount:7;
	u32 	WriteEnable:1;		/* 0:read, 1:write */
	u32 	FixOrContinuous:1;	/* 0:continuous, 1: Fix */
	u32 	BurstMode:1;
	u32 	Byte1Access:1;
	u32 	Byte2Access:1;
	u32 	Byte4Access:1;
	u32 	Reserved3:3;
	u32 	Reserved4:16;
	/* DW3 */
	u32 	BusAddress;
	/* DW4 */
	u32 	Value;

#else
	/* DW1 */
	u32 Reserved1  :4;
	u32 NumOfTrans :4;

	u32 Reserved2  :24;

	/* DW2 */
	u32 WriteEnable : 1;
	u32 ByteCount :7;

	u32 Reserved3 : 3;
	u32 Byte4Access : 1;

	u32 Byte2Access : 1;
	u32 Byte1Access : 1;
	u32 BurstMode :1 ;
	u32 FixOrContinuous : 1;

	u32 Reserved4 : 16;

	/* DW3 */
	u32 	BusAddress;

	/* DW4 */
	u32 	Value;

#endif

};
#define SD_IO_TRY_CNT (8)
#define MAX_CONTINUAL_IO_ERR SD_IO_TRY_CNT

int rtw_inc_and_chk_continual_io_error(struct dvobj_priv *dvobj);
void rtw_reset_continual_io_error(struct dvobj_priv *dvobj);

/*
Below is the data structure used by _io_handler

*/

struct io_queue {
	_lock	lock;
	struct list_head	free_ioreqs;
	struct list_head		pending;		/* The io_req list that will be served in the single protocol read/write. */
	struct list_head		processing;
	u8 *free_ioreqs_buf; /*  4-byte aligned */
	u8 *pallocated_free_ioreqs_buf;
	struct	intf_hdl	intf;
};

struct io_priv{

	struct adapter *padapter;

	struct intf_hdl intf;

};

extern uint ioreq_flush(struct adapter *adapter, struct io_queue *ioqueue);
extern void sync_ioreq_enqueue(struct io_req *preq, struct io_queue *ioqueue);
extern uint sync_ioreq_flush(struct adapter *adapter, struct io_queue *ioqueue);


extern uint free_ioreq(struct io_req *preq, struct io_queue *pio_queue);
extern struct io_req *alloc_ioreq(struct io_queue *pio_q);

extern uint register_intf_hdl(u8 *dev, struct intf_hdl *pintfhdl);
extern void unregister_intf_hdl(struct intf_hdl *pintfhdl);

extern void _rtw_attrib_read(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
extern void _rtw_attrib_write(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);

extern u8 _rtw_read8(struct adapter *adapter, u32 addr);
extern u16 _rtw_read16(struct adapter *adapter, u32 addr);
extern u32 _rtw_read32(struct adapter *adapter, u32 addr);

extern int _rtw_write8(struct adapter *adapter, u32 addr, u8 val);
extern int _rtw_write16(struct adapter *adapter, u32 addr, u16 val);
extern int _rtw_write32(struct adapter *adapter, u32 addr, u32 val);

extern u8 _rtw_sd_f0_read8(struct adapter *adapter, u32 addr);

extern u32 _rtw_write_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);

#define rtw_read8(adapter, addr) _rtw_read8((adapter), (addr))
#define rtw_read16(adapter, addr) _rtw_read16((adapter), (addr))
#define rtw_read32(adapter, addr) _rtw_read32((adapter), (addr))

#define  rtw_write8(adapter, addr, val) _rtw_write8((adapter), (addr), (val))
#define  rtw_write16(adapter, addr, val) _rtw_write16((adapter), (addr), (val))
#define  rtw_write32(adapter, addr, val) _rtw_write32((adapter), (addr), (val))

#define rtw_write_port(adapter, addr, cnt, mem) _rtw_write_port((adapter), (addr), (cnt), (mem))

#define rtw_sd_f0_read8(adapter, addr) _rtw_sd_f0_read8((adapter), (addr))

extern void rtw_write_scsi(struct adapter *adapter, u32 cnt, u8 *pmem);

/* ioreq */
extern void ioreq_read8(struct adapter *adapter, u32 addr, u8 *pval);
extern void ioreq_read16(struct adapter *adapter, u32 addr, u16 *pval);
extern void ioreq_read32(struct adapter *adapter, u32 addr, u32 *pval);
extern void ioreq_write8(struct adapter *adapter, u32 addr, u8 val);
extern void ioreq_write16(struct adapter *adapter, u32 addr, u16 val);
extern void ioreq_write32(struct adapter *adapter, u32 addr, u32 val);


extern uint async_read8(struct adapter *adapter, u32 addr, u8 *pbuff,
	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt), u8 *cnxt);
extern uint async_read16(struct adapter *adapter, u32 addr,  u8 *pbuff,
	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt), u8 *cnxt);
extern uint async_read32(struct adapter *adapter, u32 addr,  u8 *pbuff,
	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt), u8 *cnxt);

extern void async_read_mem(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
extern void async_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);

extern void async_write8(struct adapter *adapter, u32 addr, u8 val,
	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt), u8 *cnxt);
extern void async_write16(struct adapter *adapter, u32 addr, u16 val,
	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt), u8 *cnxt);
extern void async_write32(struct adapter *adapter, u32 addr, u32 val,
	void (*_async_io_callback)(struct adapter *padater, struct io_req *pio_req, u8 *cnxt), u8 *cnxt);

extern void async_write_mem(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
extern void async_write_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);


int rtw_init_io_priv(struct adapter *padapter, void (*set_intf_ops)(struct adapter *padapter, struct _io_ops *pops));


extern uint alloc_io_queue(struct adapter *adapter);
extern void free_io_queue(struct adapter *adapter);
extern void async_bus_io(struct io_queue *pio_q);
extern void bus_sync_io(struct io_queue *pio_q);
extern u32 _ioreq2rwmem(struct io_queue *pio_q);
extern void dev_power_down(struct adapter * Adapter, u8 bpwrup);

#define PlatformEFIOWrite1Byte(_a, _b, _c)		\
	rtw_write8(_a, _b, _c)
#define PlatformEFIOWrite2Byte(_a, _b, _c)		\
	rtw_write16(_a, _b, _c)
#define PlatformEFIOWrite4Byte(_a, _b, _c)		\
	rtw_write32(_a, _b, _c)

#define PlatformEFIORead1Byte(_a, _b)		\
		rtw_read8(_a, _b)
#define PlatformEFIORead2Byte(_a, _b)		\
		rtw_read16(_a, _b)
#define PlatformEFIORead4Byte(_a, _b)		\
		rtw_read32(_a, _b)

#endif	/* _RTL8711_IO_H_ */