usbms_adap.c

mtk 6225平台的usb程序！ 对想了解mtk平台usb的朋友会有帮助！

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
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*  AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
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*****************************************************************************/

/*****************************************************************************
 *
 * Filename:
 * ---------
 *    usbms_adap.c
 *
 * Project:
 * --------
 *   Maui_Software
 *
 * Description:
 * ------------
 *  This file implements usb adaption layer for mass storage
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 *============================================================================
 ****************************************************************************/
#include "drv_comm.h"
#include "gpt_sw.h"
#include "usb_comm.h"
#include "usb_drv.h"
#include "usb.h"
#include "usbms_utils.h"
#include "usbms_drv.h"
#include "usbms_adap.h"
#include "usb_custom.h"

#include "msdc_def.h"

static kal_uint8 USBMS_MAX_DISK = 0;
static USB_DiskDriver_STRUCT  *USBMS_DISKDRV_API[MAX_DISK_DRVER];


/***********************************************
	adaption functions
************************************************/

kal_uint8 USB_Ms_Get_Max_LUN(void)
{
	//disk number 0 means no disk register for mass storage function	
	if(USBMS_MAX_DISK==0)
		EXT_ASSERT(0, USBMS_MAX_DISK, 0, 0);
		
	return (USBMS_MAX_DISK-1);
}

kal_uint8 USB_Ms_Register_DiskDriver(USB_DiskDriver_STRUCT *disk_api)
{
	USBMS_DISKDRV_API[USBMS_MAX_DISK] = disk_api;
	USBMS_MAX_DISK++;
	
	if(USBMS_MAX_DISK>=MAX_DISK_DRVER)
		EXT_ASSERT(0, USBMS_MAX_DISK, MAX_DISK_DRVER, 0);

	return (USBMS_MAX_DISK-1);
}

void USB_Ms_DeRegister_DiskDriver(kal_uint8 disk_index)
{
	kal_uint8 index;

	/* disk index can not exceed max LUN, and if deregister the last LUN, zero LUN is not allowed*/
	if((disk_index>=USBMS_MAX_DISK) || (USBMS_MAX_DISK==1))
		EXT_ASSERT(0, disk_index, USBMS_MAX_DISK, 0);

	if(disk_index<(USBMS_MAX_DISK-1))
	{
		for(index = disk_index; index < (USBMS_MAX_DISK-1); index++)
		{
			USBMS_DISKDRV_API[index] = USBMS_DISKDRV_API[index+1];
		}
	}
	USBMS_MAX_DISK--;
}

void USB_Ms_Change_Register_DiskDriver(kal_uint8 disk_index, USB_DiskDriver_STRUCT *disk_api)
{
	/* disk index can not exceed max LUN */
	if(disk_index >= USBMS_MAX_DISK)
		EXT_ASSERT(0, disk_index, USBMS_MAX_DISK, 0);

	USBMS_DISKDRV_API[disk_index] = disk_api;
}

kal_uint8 USB_Ms_Checkmedia_Exist(kal_uint8 LUN)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return USB_STORAGE_DEV_STATUS_NOMEDIA;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_checkmedia_exist();
}

kal_bool USB_Ms_Format(kal_uint8 LUN)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_format();
}

kal_bool USB_Ms_Read_Capacity(kal_uint8 LUN, kal_uint32 *max_lba, kal_uint32 *sec_len)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_read_capacity(max_lba, sec_len);
}

/*
kal_bool USB_Ms_Read_FormatCapacity(kal_uint8 LUN, kal_uint32 *max_lba, kal_uint32 *sec_len)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_read_formatcapacity(max_lba, sec_len);
}
*/

kal_bool USB_Ms_Read(kal_uint8 LUN, void *data, kal_uint32 LBA, kal_uint16 sec_len)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_read(data, LBA, sec_len);
}

kal_bool USB_Ms_Write(kal_uint8 LUN, void *data, kal_uint32 LBA, kal_uint16 sec_len)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_write(data, LBA, sec_len);
}

kal_bool USB_Ms_Prevmedia_Removal(kal_uint8 LUN, kal_bool enable)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}
	
	return USBMS_DISKDRV_API[LUN]->usbms_prevmedia_removal(enable);
}

USB_STORAGE_DEV_TYPE USB_Ms_Dev_Type(kal_uint8 LUN)
{
	if(USBMS_DISKDRV_API[LUN]==NULL)
	{
	#ifndef __PRODUCTION_RELEASE__	
		EXT_ASSERT(0, LUN, 0, 0);
	#endif
		return KAL_FALSE;
	}

	return USBMS_DISKDRV_API[LUN]->usbms_dev_type();
}