/******************************************************************************
 *
 * 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_

#include <osdep_service.h>
#include <osdep_intf.h>

#include <asm/byteorder.h>
#include <linux/semaphore.h>
#include <linux/list.h>
/* include <linux/smp_lock.h> */
#include <linux/spinlock.h>
#include <asm/atomic.h>

#include <linux/usb.h>
#include <linux/usb/ch9.h>

#define rtw_usb_buffer_alloc(dev, size, dma) usb_alloc_coherent((dev), (size), (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL), (dma))
#define rtw_usb_buffer_free(dev, size, addr, dma) usb_free_coherent((dev), (size), (addr), (dma))

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

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

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 PlatformEFIOWrite1Byte(_a, _b, _c)		\
	rtl8723au_write8(_a, _b, _c)
#define PlatformEFIOWrite2Byte(_a, _b, _c)		\
	rtl8723au_write16(_a, _b, _c)
#define PlatformEFIOWrite4Byte(_a, _b, _c)		\
	rtl8723au_write32(_a, _b, _c)

#define PlatformEFIORead1Byte(_a, _b)		rtl8723au_read8(_a, _b)
#define PlatformEFIORead2Byte(_a, _b)		rtl8723au_read16(_a, _b)
#define PlatformEFIORead4Byte(_a, _b)		rtl8723au_read32(_a, _b)

#endif	/* _RTL8711_IO_H_ */