rtusb_io.c

台湾RALink公司的 rt2570无线 802.11g 网卡的 驱动的源代码 ,支持linux2.4以上的 内河

/*
 ***************************************************************************
 * Ralink Tech Inc.
 * 4F, No. 2 Technology 5th Rd.
 * Science-based Industrial Park
 * Hsin-chu, Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2004, Ralink Technology, Inc.
 *
 * This program is free software; you can redistribute it and/or modify  * 
 * it under the terms of the GNU General Public License as published by  * 
 * the Free Software Foundation; either version 2 of the License, or     * 
 * (at your option) any later version.                                   * 
 *                                                                       * 
 * 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.                          * 
 *                                                                       * 
 * You should have received a copy of the GNU General Public License     * 
 * along with this program; if not, write to the                         * 
 * Free Software Foundation, Inc.,                                       * 
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             * 
 *                                                                       * 
 ************************************************************************
	Module Name:
	rtusb_io.c

	Abstract:

	Revision History:
	Who			When			What
	--------	----------		----------------------------------------------
	Name		Date			Modification logs
	Jan Lee		2005-06-01		Release
*/
#include	"rt_config.h"
/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBSingleRead(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	OUT	PUSHORT			pValue)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x3,
		0,
		Offset,
		pValue,
		2);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBSingleWrite(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	IN	USHORT			Value)
{
	NTSTATUS	Status;
	
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x2,
		Value,
		Offset,
		NULL,
		0);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBMultiRead(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	OUT	PUCHAR			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;
	
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x7,
		0,
		Offset,
		pData,
		length);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBMultiWrite(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	IN	PUCHAR			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;
	
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x6,
		0,
		Offset,
		pData,
		length);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBReadMACRegister(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	OUT	PUSHORT			pValue)
{
	NTSTATUS	Status;
	
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x3,
		0,
		Offset + 0x400,
		pValue,
		2);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBWriteMACRegister(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	IN	USHORT			Value)
{
	NTSTATUS	Status;
	if (Offset == TXRX_CSR2)
     		DBGPRINT(RT_DEBUG_ERROR, " !!!!!set Rx control = %x\n", Value);
     
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x2,
		Value,
		Offset + 0x400,
		NULL,
		0);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBMultiReadMAC(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	OUT	PUCHAR			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;
	
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x7,
		0,
		Offset + 0x400,
		pData,
		length);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBMultiWriteMAC(
	IN	PRT2570ADAPTER	pAdapter,
	IN	USHORT			Offset,
	IN	PUCHAR			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;
	
	Status = RTUSB_VendorRequest(
		pAdapter,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x6,
		0,
		Offset + 0x400,
		pData,
		length);
	
	return Status;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBReadBBPRegister(
	IN	PRT2570ADAPTER	pAdapter,
	IN	UCHAR			Id,
	IN	PUCHAR			pValue)
{
	PHY_CSR7_STRUC	PhyCsr7;
	USHORT			temp;
	UINT			i = 0;

	if (RTMP_TEST_FLAG(pAdapter, fRTMP_ADAPTER_REMOVE_IN_PROGRESS))
	{
		DBGPRINT(RT_DEBUG_ERROR,"device connected\n");
		return -1;
	}

	PhyCsr7.value				= 0;
	PhyCsr7.field.WriteControl	= 1;
	PhyCsr7.field.RegID 		= Id;
	RTUSBWriteMACRegister(pAdapter, PHY_CSR7, PhyCsr7.value);
	
	do
	{
		RTUSBReadMACRegister(pAdapter, PHY_CSR8, &temp);
		if (!(temp & BUSY))
			break;
		i++;
	}
	while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAdapter, fRTMP_ADAPTER_REMOVE_IN_PROGRESS)));

	if ((i == RETRY_LIMIT) || (RTMP_TEST_FLAG(pAdapter, fRTMP_ADAPTER_REMOVE_IN_PROGRESS)))
	{
		DBGPRINT_RAW(RT_DEBUG_ERROR, "Retry count exhausted or device removed!!!\n");
		return STATUS_UNSUCCESSFUL;
	}

	RTUSBReadMACRegister(pAdapter, PHY_CSR7, (PUSHORT)&PhyCsr7);
	*pValue = (UCHAR)PhyCsr7.field.Data;
	
	return STATUS_SUCCESS;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBWriteBBPRegister(
	IN	PRT2570ADAPTER	pAdapter,
	IN	UCHAR			Id,
	IN	UCHAR			Value)
{
	PHY_CSR7_STRUC	PhyCsr7;
	USHORT			temp;
	UINT			i = 0;

	if (RTMP_TEST_FLAG(pAdapter, fRTMP_ADAPTER_REMOVE_IN_PROGRESS))
	{
		DBGPRINT(RT_DEBUG_ERROR,"device connected\n");
		return -1;
	}
	do
	{
		RTUSBReadMACRegister(pAdapter, PHY_CSR8, &temp);
		if (!(temp & BUSY))
			break;
		i++;
	}
	while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAdapter, fRTMP_ADAPTER_REMOVE_IN_PROGRESS)));

	if ((i == RETRY_LIMIT) || (RTMP_TEST_FLAG(pAdapter, fRTMP_ADAPTER_REMOVE_IN_PROGRESS)))
	{
		DBGPRINT_RAW(RT_DEBUG_ERROR, "Retry count exhausted or device removed!!!\n");
		return STATUS_UNSUCCESSFUL;
	}

	PhyCsr7.value				= 0;
	PhyCsr7.field.WriteControl	= 0;
	PhyCsr7.field.RegID 		= Id;
	PhyCsr7.field.Data			= Value;
	RTUSBWriteMACRegister(pAdapter, PHY_CSR7, PhyCsr7.value);
	pAdapter->PortCfg.BbpWriteLatch[Id] = Value;
	
	return STATUS_SUCCESS;
}

/*
	========================================================================
	
	Routine Description:

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NTSTATUS	RTUSBWriteRFRegister(
	IN	PRT2570ADAPTER	pAdapter,
	IN	ULONG			Value)
{
	PHY_CSR10_STRUC	PhyCsr10;
	UINT			i = 0;

	do