rtusb_io.c

r73模块的无线网卡在Linux下的驱动程序

/***************************************************************************
 * RT2x00 SourceForge Project - http://rt2x00.serialmonkey.com             *
 *                                                                         *
 *   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.             *
 *                                                                         *
 *   Licensed under the GNU GPL                                            *
 *   Original code supplied under license from RaLink Inc, 2004.           *
 ***************************************************************************/

/***************************************************************************
 *	Module Name:	rtusb_io.c
 *
 *	Abstract:
 *
 *	Revision History:
 *	Who		When		What
 *	--------	----------	-----------------------------
 *	Paul Lin	06-25-2004	created
 *
 ***************************************************************************/

#include	"rt_config.h"


/*
	========================================================================

	Routine Description: NIC initialization complete

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBFirmwareRun(
	IN	PRTMP_ADAPTER	pAd)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x01,
		0x8,
		0,
		NULL,
		0);

	return Status;
}

/*
	========================================================================

	Routine Description: Read various length data from RT2573

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBMultiRead(
	IN	PRTMP_ADAPTER	pAd,
	IN	USHORT			Offset,
	OUT	PVOID			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x7,
		0,
		Offset,
		pData,
		length);

	return Status;
}

/*
	========================================================================

	Routine Description: Write various length data to RT2573

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBMultiWrite(
	IN	PRTMP_ADAPTER	pAd,
	IN	USHORT			Offset,
	IN	PVOID			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x6,
		0,
		Offset,
		pData,
		length);

	return Status;
}

/*
	========================================================================

	Routine Description: Read 32-bit MAC register

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBReadMACRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	USHORT			Offset,
	OUT	PULONG			pValue)
{
	NTSTATUS	Status;
	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x7,
		0,
		Offset,
		pValue,
		4);
	le32_to_cpus(pValue);

	return Status;
}

/*
	========================================================================

	Routine Description: Write 32-bit MAC register

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBWriteMACRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	USHORT			Offset,
	IN	ULONG			Value)
{
	NTSTATUS	Status;

	cpu_to_le32s(&Value);
	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x6,
		0x00,
		Offset,
		&Value,
		4);

	return Status;
}

NTSTATUS	RT73WriteTXRXCSR0(
	IN	PRTMP_ADAPTER pAd,
	IN	BOOLEAN 	disableRx,
	IN	BOOLEAN		dropControl)
{
    ULONG val = 0x0046b032;

    if (pAd->PortCfg.BssType != BSS_MONITOR)
    {
	val |= 0x00100000;		//Drop promiscuous frames if not in rfmon
	val |= 0x00200000;		//Drop to_ds (packets from station to access point/distribution system)
    }

    if (disableRx == TRUE)
    {
	val |= 0x00010000;
    }

    if (dropControl == TRUE)
    {
	val |= 0x00080000;
    }

    return RTUSBWriteMACRegister(pAd, TXRX_CSR0, val);
}

/*
	========================================================================

	Routine Description: Write 32-bit MAC register

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS    RTUSBSetLED(
	IN	PRTMP_ADAPTER		pAd,
	IN	MCU_LEDCS_STRUC		LedStatus,
	IN	USHORT				LedIndicatorStrength)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x0a,
		LedStatus.word,
		LedIndicatorStrength,
		NULL,
		0);

	return Status;
}

/*
	========================================================================

	Routine Description: Read 8-bit BBP register

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBReadBBPRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	UCHAR			Id,
	IN	PUCHAR			pValue)
{
	PHY_CSR3_STRUC	PhyCsr3;
	UINT			i = 0;

	// Verify the busy condition
	do
	{
		RTUSBReadMACRegister(pAd, PHY_CSR3, &PhyCsr3.word);
		if (!(PhyCsr3.field.Busy == BUSY))
			break;
		i++;
	}
	while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));
	//DBGPRINT(RT_DEBUG_INFO, "- %s: Pre-busy PHY_CSR3=0x%08x\n",
			//__FUNCTION__, PhyCsr3.word);

	if ((i == RETRY_LIMIT) || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)))
	{
		//
		// Read failed then Return Default value.
		//
		*pValue = pAd->BbpWriteLatch[Id];

		KPRINT(KERN_NOTICE,
				"- BBP read: Pre-busy error or device removed!!!\n");
		DBGPRINT(RT_DEBUG_ERROR, "Retry count exhausted or device removed!!!\n");
		return STATUS_UNSUCCESSFUL;
	}

	// Prepare for write material
	PhyCsr3.word 				= 0;
	PhyCsr3.field.fRead			= 1;
	PhyCsr3.field.Busy			= 1;
	PhyCsr3.field.RegNum 		= Id;
	RTUSBWriteMACRegister(pAd, PHY_CSR3, PhyCsr3.word);

	i = 0;
	// Verify the busy condition
	do
	{
		RTUSBReadMACRegister(pAd, PHY_CSR3, &PhyCsr3.word);
		if (!(PhyCsr3.field.Busy == BUSY))
		{
			*pValue = (UCHAR)PhyCsr3.field.Value;
			break;
		}
		i++;
	}
	while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));
	//DBGPRINT(RT_DEBUG_INFO, "- %s: Post-busy PHY_CSR3=0x%08x\n",
			//__FUNCTION__, PhyCsr3.word);

	if ((i == RETRY_LIMIT) || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)))
	{
		//
		// Read failed then Return Default value.
		//
		*pValue = pAd->BbpWriteLatch[Id];

		KPRINT(KERN_NOTICE,
				"- BBP read: Post-busy error or device removed!!!\n");
		DBGPRINT(RT_DEBUG_ERROR, "Retry count exhausted or device removed!!!\n");
		return STATUS_UNSUCCESSFUL;
	}

	return STATUS_SUCCESS;
}

/*
	========================================================================

	Routine Description: Write 8-bit BBP register

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBWriteBBPRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	UCHAR			Id,
	IN	UCHAR			Value)
{
	PHY_CSR3_STRUC	PhyCsr3;
	UINT			i = 0;

	// Verify the busy condition
	do
	{
		RTUSBReadMACRegister(pAd, PHY_CSR3, &PhyCsr3.word);
		if (!(PhyCsr3.field.Busy == BUSY))
			break;
		i++;
	}
	while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));

	if ((i == RETRY_LIMIT) || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)))
	{
		DBGPRINT(RT_DEBUG_ERROR,
				"- %s: Busy error=0x%08x or device removed!!!\n",
				__FUNCTION__, PhyCsr3.word);
		KPRINT(KERN_NOTICE,
				"- BBP write: Retry count exhausted or device removed!!!\n");
		return STATUS_UNSUCCESSFUL;
	}

	// Prepare for write material
	PhyCsr3.word 				= 0;
	PhyCsr3.field.fRead			= 0;
	PhyCsr3.field.Value			= Value;
	PhyCsr3.field.Busy			= 1;
	PhyCsr3.field.RegNum 		= Id;
	RTUSBWriteMACRegister(pAd, PHY_CSR3, PhyCsr3.word);

	pAd->BbpWriteLatch[Id] = Value;

	return STATUS_SUCCESS;
}

/*
	========================================================================

	Routine Description: Write RF register through MAC

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBWriteRFRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	ULONG			Value)
{
	PHY_CSR4_STRUC	PhyCsr4;
	UINT			i = 0;

	do
	{
		RTUSBReadMACRegister(pAd, PHY_CSR4, &PhyCsr4.word);
		if (!(PhyCsr4.field.Busy))
			break;
		i++;
	}
	while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));

	if ((i == RETRY_LIMIT) || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)))
	{
		DBGPRINT(RT_DEBUG_ERROR,
				"- %s: Busy error=0x%08x or device removed!!!\n",
				__FUNCTION__, PhyCsr4.word);
		KPRINT(KERN_NOTICE,
				"- RF write: Retry count exhausted or device removed!!!\n");
		return STATUS_UNSUCCESSFUL;
	}

	RTUSBWriteMACRegister(pAd, PHY_CSR4, Value);

	return STATUS_SUCCESS;
}

/*
	========================================================================

	Routine Description:

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBReadEEPROM(
	IN	PRTMP_ADAPTER	pAd,
	IN	USHORT			Offset,
	OUT	PVOID			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_IN,
		0x9,
		0,
		Offset,
		pData,
		length);

	return Status;
}

/*
	========================================================================

	Routine Description:

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBWriteEEPROM(
	IN	PRTMP_ADAPTER	pAd,
	IN	USHORT			Offset,
	IN	PVOID			pData,
	IN	USHORT			length)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x8,
		0,
		Offset,
		pData,
		length);

	return Status;
}

/*
	========================================================================

	Routine Description:

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS	RTUSBStopRx(
	IN	PRTMP_ADAPTER	pAd)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(pAd,
             0,
             DEVICE_VENDOR_REQUEST_OUT,
             0x0C,
             0x0,
             0x0,
             NULL,
             0);

	return Status;
}

/*
	========================================================================

	Routine Description:

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS RTUSBPutToSleep(
	IN	PRTMP_ADAPTER	pAd)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x01,
		0x07,
		0,
		NULL,
		0);

	return Status;
}

/*
	========================================================================

	Routine Description:

	Arguments:

	Return Value:

	Note:

	========================================================================
*/
NTSTATUS RTUSBWakeUp(
	IN	PRTMP_ADAPTER	pAd)
{
	NTSTATUS	Status;

	Status = RTUSB_VendorRequest(
		pAd,
		0,
		DEVICE_VENDOR_REQUEST_OUT,
		0x01,
		0x09,
		0,
		NULL,
		0);

	return Status;
}