Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1676 insertions, 0 deletions

diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
new file mode 100644
index 00000000000..8bafb455c10
--- /dev/null
+++ b/drivers/net/irda/via-ircc.c
@@ -0,0 +1,1676 @@
+/********************************************************************
+ Filename:      via-ircc.c
+ Version:       1.0 
+ Description:   Driver for the VIA VT8231/VT8233 IrDA chipsets
+ Author:        VIA Technologies,inc
+ Date  :	08/06/2003
+
+Copyright (c) 1998-2003 VIA Technologies, 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, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTIES OR REPRESENTATIONS; 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.
+
+F01 Oct/02/02: Modify code for V0.11(move out back to back transfer)
+F02 Oct/28/02: Add SB device ID for 3147 and 3177.
+ Comment :
+       jul/09/2002 : only implement two kind of dongle currently.
+       Oct/02/2002 : work on VT8231 and VT8233 .
+       Aug/06/2003 : change driver format to pci driver .
+
+2004-02-16: <sda@bdit.de>
+- Removed unneeded 'legacy' pci stuff.
+- Make sure SIR mode is set (hw_init()) before calling mode-dependant stuff.
+- On speed change from core, don't send SIR frame with new speed. 
+  Use current speed and change speeds later.
+- Make module-param dongle_id actually work.
+- New dongle_id 17 (0x11): TDFS4500. Single-ended SIR only. 
+  Tested with home-grown PCB on EPIA boards.
+- Code cleanup.
+       
+ ********************************************************************/
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/rtnetlink.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/byteorder.h>
+
+#include <linux/pm.h>
+
+#include <net/irda/wrapper.h>
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>
+
+#include "via-ircc.h"
+
+#define VIA_MODULE_NAME "via-ircc"
+#define CHIP_IO_EXTENT 0x40
+
+static char *driver_name = VIA_MODULE_NAME;
+
+/* Module parameters */
+static int qos_mtt_bits = 0x07;	/* 1 ms or more */
+static int dongle_id = 0;	/* default: probe */
+
+/* We can't guess the type of connected dongle, user *must* supply it. */
+module_param(dongle_id, int, 0);
+
+/* FIXME : we should not need this, because instances should be automatically
+ * managed by the PCI layer. Especially that we seem to only be using the
+ * first entry. Jean II */
+/* Max 4 instances for now */
+static struct via_ircc_cb *dev_self[] = { NULL, NULL, NULL, NULL };
+
+/* Some prototypes */
+static int via_ircc_open(int i, chipio_t * info, unsigned int id);
+static int via_ircc_close(struct via_ircc_cb *self);
+static int via_ircc_dma_receive(struct via_ircc_cb *self);
+static int via_ircc_dma_receive_complete(struct via_ircc_cb *self,
+					 int iobase);
+static int via_ircc_hard_xmit_sir(struct sk_buff *skb,
+				  struct net_device *dev);
+static int via_ircc_hard_xmit_fir(struct sk_buff *skb,
+				  struct net_device *dev);
+static void via_hw_init(struct via_ircc_cb *self);
+static void via_ircc_change_speed(struct via_ircc_cb *self, __u32 baud);
+static irqreturn_t via_ircc_interrupt(int irq, void *dev_id,
+				      struct pt_regs *regs);
+static int via_ircc_is_receiving(struct via_ircc_cb *self);
+static int via_ircc_read_dongle_id(int iobase);
+
+static int via_ircc_net_open(struct net_device *dev);
+static int via_ircc_net_close(struct net_device *dev);
+static int via_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq,
+			      int cmd);
+static struct net_device_stats *via_ircc_net_get_stats(struct net_device
+						       *dev);
+static void via_ircc_change_dongle_speed(int iobase, int speed,
+					 int dongle_id);
+static int RxTimerHandler(struct via_ircc_cb *self, int iobase);
+static void hwreset(struct via_ircc_cb *self);
+static int via_ircc_dma_xmit(struct via_ircc_cb *self, u16 iobase);
+static int upload_rxdata(struct via_ircc_cb *self, int iobase);
+static int __devinit via_init_one (struct pci_dev *pcidev, const struct pci_device_id *id);
+static void __devexit via_remove_one (struct pci_dev *pdev);
+
+/* FIXME : Should use udelay() instead, even if we are x86 only - Jean II */
+static void iodelay(int udelay)
+{
+	u8 data;
+	int i;
+
+	for (i = 0; i < udelay; i++) {
+		data = inb(0x80);
+	}
+}
+
+static struct pci_device_id via_pci_tbl[] = {
+	{ PCI_VENDOR_ID_VIA, 0x8231, PCI_ANY_ID, PCI_ANY_ID,0,0,0 },
+	{ PCI_VENDOR_ID_VIA, 0x3109, PCI_ANY_ID, PCI_ANY_ID,0,0,1 },
+	{ PCI_VENDOR_ID_VIA, 0x3074, PCI_ANY_ID, PCI_ANY_ID,0,0,2 },
+	{ PCI_VENDOR_ID_VIA, 0x3147, PCI_ANY_ID, PCI_ANY_ID,0,0,3 },
+	{ PCI_VENDOR_ID_VIA, 0x3177, PCI_ANY_ID, PCI_ANY_ID,0,0,4 },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci,via_pci_tbl);
+
+
+static struct pci_driver via_driver = {
+	.name		= VIA_MODULE_NAME,
+	.id_table	= via_pci_tbl,
+	.probe		= via_init_one,
+	.remove		= __devexit_p(via_remove_one),
+};
+
+
+/*
+ * Function via_ircc_init ()
+ *
+ *    Initialize chip. Just find out chip type and resource.
+ */
+static int __init via_ircc_init(void)
+{
+	int rc;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	rc = pci_register_driver(&via_driver);
+	if (rc < 0) {
+		IRDA_DEBUG(0, "%s(): error rc = %d, returning  -ENODEV...\n",
+			   __FUNCTION__, rc);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static int __devinit via_init_one (struct pci_dev *pcidev, const struct pci_device_id *id)
+{
+	int rc;
+        u8 temp,oldPCI_40,oldPCI_44,bTmp,bTmp1;
+	u16 Chipset,FirDRQ1,FirDRQ0,FirIRQ,FirIOBase;
+	chipio_t info;
+
+	IRDA_DEBUG(2, "%s(): Device ID=(0X%X)\n", __FUNCTION__, id->device);
+
+	rc = pci_enable_device (pcidev);
+	if (rc) {
+		IRDA_DEBUG(0, "%s(): error rc = %d\n", __FUNCTION__, rc);
+		return -ENODEV;
+	}
+
+	// South Bridge exist
+        if ( ReadLPCReg(0x20) != 0x3C )
+		Chipset=0x3096;
+	else
+		Chipset=0x3076;
+
+	if (Chipset==0x3076) {
+		IRDA_DEBUG(2, "%s(): Chipset = 3076\n", __FUNCTION__);
+
+		WriteLPCReg(7,0x0c );
+		temp=ReadLPCReg(0x30);//check if BIOS Enable Fir
+		if((temp&0x01)==1) {   // BIOS close or no FIR
+			WriteLPCReg(0x1d, 0x82 );
+			WriteLPCReg(0x23,0x18);
+			temp=ReadLPCReg(0xF0);
+			if((temp&0x01)==0) {
+				temp=(ReadLPCReg(0x74)&0x03);    //DMA
+				FirDRQ0=temp + 4;
+				temp=(ReadLPCReg(0x74)&0x0C) >> 2;
+				FirDRQ1=temp + 4;
+			} else {
+				temp=(ReadLPCReg(0x74)&0x0C) >> 2;    //DMA
+				FirDRQ0=temp + 4;
+				FirDRQ1=FirDRQ0;
+			}
+			FirIRQ=(ReadLPCReg(0x70)&0x0f);		//IRQ
+			FirIOBase=ReadLPCReg(0x60 ) << 8;	//IO Space :high byte
+			FirIOBase=FirIOBase| ReadLPCReg(0x61) ;	//low byte
+			FirIOBase=FirIOBase  ;
+			info.fir_base=FirIOBase;
+			info.irq=FirIRQ;
+			info.dma=FirDRQ1;
+			info.dma2=FirDRQ0;
+			pci_read_config_byte(pcidev,0x40,&bTmp);
+			pci_write_config_byte(pcidev,0x40,((bTmp | 0x08) & 0xfe));
+			pci_read_config_byte(pcidev,0x42,&bTmp);
+			pci_write_config_byte(pcidev,0x42,(bTmp | 0xf0));
+			pci_write_config_byte(pcidev,0x5a,0xc0);
+			WriteLPCReg(0x28, 0x70 );
+			if (via_ircc_open(0, &info,0x3076) == 0)
+				rc=0;
+		} else
+			rc = -ENODEV; //IR not turn on	 
+	} else { //Not VT1211
+		IRDA_DEBUG(2, "%s(): Chipset = 3096\n", __FUNCTION__);
+
+		pci_read_config_byte(pcidev,0x67,&bTmp);//check if BIOS Enable Fir
+		if((bTmp&0x01)==1) {  // BIOS enable FIR
+			//Enable Double DMA clock
+			pci_read_config_byte(pcidev,0x42,&oldPCI_40);
+			pci_write_config_byte(pcidev,0x42,oldPCI_40 | 0x80);
+			pci_read_config_byte(pcidev,0x40,&oldPCI_40);
+			pci_write_config_byte(pcidev,0x40,oldPCI_40 & 0xf7);
+			pci_read_config_byte(pcidev,0x44,&oldPCI_44);
+			pci_write_config_byte(pcidev,0x44,0x4e);
+  //---------- read configuration from Function0 of south bridge
+			if((bTmp&0x02)==0) {
+				pci_read_config_byte(pcidev,0x44,&bTmp1); //DMA
+				FirDRQ0 = (bTmp1 & 0x30) >> 4;
+				pci_read_config_byte(pcidev,0x44,&bTmp1);
+				FirDRQ1 = (bTmp1 & 0xc0) >> 6;
+			} else  {
+				pci_read_config_byte(pcidev,0x44,&bTmp1);    //DMA
+				FirDRQ0 = (bTmp1 & 0x30) >> 4 ;
+				FirDRQ1=0;
+			}
+			pci_read_config_byte(pcidev,0x47,&bTmp1);  //IRQ
+			FirIRQ = bTmp1 & 0x0f;
+
+			pci_read_config_byte(pcidev,0x69,&bTmp);
+			FirIOBase = bTmp << 8;//hight byte
+			pci_read_config_byte(pcidev,0x68,&bTmp);
+			FirIOBase = (FirIOBase | bTmp ) & 0xfff0;
+  //-------------------------
+			info.fir_base=FirIOBase;
+			info.irq=FirIRQ;
+			info.dma=FirDRQ1;
+			info.dma2=FirDRQ0;
+			if (via_ircc_open(0, &info,0x3096) == 0)
+				rc=0;
+		} else
+			rc = -ENODEV; //IR not turn on !!!!!
+	}//Not VT1211
+
+	IRDA_DEBUG(2, "%s(): End - rc = %d\n", __FUNCTION__, rc);
+	return rc;
+}
+
+/*
+ * Function via_ircc_clean ()
+ *
+ *    Close all configured chips
+ *
+ */
+static void via_ircc_clean(void)
+{
+	int i;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	for (i=0; i < 4; i++) {
+		if (dev_self[i])
+			via_ircc_close(dev_self[i]);
+	}
+}
+
+static void __devexit via_remove_one (struct pci_dev *pdev)
+{
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	/* FIXME : This is ugly. We should use pci_get_drvdata(pdev);
+	 * to get our driver instance and call directly via_ircc_close().
+	 * See vlsi_ir for details...
+	 * Jean II */
+	via_ircc_clean();
+
+	/* FIXME : This should be in via_ircc_close(), because here we may
+	 * theoritically disable still configured devices :-( - Jean II */
+	pci_disable_device(pdev);
+}
+
+static void __exit via_ircc_cleanup(void)
+{
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	/* FIXME : This should be redundant, as pci_unregister_driver()
+	 * should call via_remove_one() on each device.
+	 * Jean II */
+	via_ircc_clean();
+
+	/* Cleanup all instances of the driver */
+	pci_unregister_driver (&via_driver); 
+}
+
+/*
+ * Function via_ircc_open (iobase, irq)
+ *
+ *    Open driver instance
+ *
+ */
+static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
+{
+	struct net_device *dev;
+	struct via_ircc_cb *self;
+	int err;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	/* Allocate new instance of the driver */
+	dev = alloc_irdadev(sizeof(struct via_ircc_cb));
+	if (dev == NULL) 
+		return -ENOMEM;
+
+	self = dev->priv;
+	self->netdev = dev;
+	spin_lock_init(&self->lock);
+
+	/* FIXME : We should store our driver instance in the PCI layer,
+	 * using pci_set_drvdata(), not in this array.
+	 * See vlsi_ir for details... - Jean II */
+	/* FIXME : 'i' is always 0 (see via_init_one()) :-( - Jean II */
+	/* Need to store self somewhere */
+	dev_self[i] = self;
+	self->index = i;
+	/* Initialize Resource */
+	self->io.cfg_base = info->cfg_base;
+	self->io.fir_base = info->fir_base;
+	self->io.irq = info->irq;
+	self->io.fir_ext = CHIP_IO_EXTENT;
+	self->io.dma = info->dma;
+	self->io.dma2 = info->dma2;
+	self->io.fifo_size = 32;
+	self->chip_id = id;
+	self->st_fifo.len = 0;
+	self->RxDataReady = 0;
+
+	/* Reserve the ioports that we need */
+	if (!request_region(self->io.fir_base, self->io.fir_ext, driver_name)) {
+		IRDA_DEBUG(0, "%s(), can't get iobase of 0x%03x\n",
+			   __FUNCTION__, self->io.fir_base);
+		err = -ENODEV;
+		goto err_out1;
+	}
+	
+	/* Initialize QoS for this device */
+	irda_init_max_qos_capabilies(&self->qos);
+
+	/* Check if user has supplied the dongle id or not */
+	if (!dongle_id)
+		dongle_id = via_ircc_read_dongle_id(self->io.fir_base);
+	self->io.dongle_id = dongle_id;
+
+	/* The only value we must override it the baudrate */
+	/* Maximum speeds and capabilities are dongle-dependant. */
+	switch( self->io.dongle_id ){
+	case 0x0d:
+		self->qos.baud_rate.bits =
+		    IR_9600 | IR_19200 | IR_38400 | IR_57600 | IR_115200 |
+		    IR_576000 | IR_1152000 | (IR_4000000 << 8);
+		break;
+	default:
+		self->qos.baud_rate.bits =
+		    IR_9600 | IR_19200 | IR_38400 | IR_57600 | IR_115200;
+		break;
+	}
+
+	/* Following was used for testing:
+	 *
+	 *   self->qos.baud_rate.bits = IR_9600;
+	 *
+	 * Is is no good, as it prohibits (error-prone) speed-changes.
+	 */
+
+	self->qos.min_turn_time.bits = qos_mtt_bits;
+	irda_qos_bits_to_value(&self->qos);
+
+	/* Max DMA buffer size needed = (data_size + 6) * (window_size) + 6; */
+	self->rx_buff.truesize = 14384 + 2048;
+	self->tx_buff.truesize = 14384 + 2048;
+
+	/* Allocate memory if needed */
+	self->rx_buff.head =
+		dma_alloc_coherent(NULL, self->rx_buff.truesize,
+				   &self->rx_buff_dma, GFP_KERNEL);
+	if (self->rx_buff.head == NULL) {
+		err = -ENOMEM;
+		goto err_out2;
+	}
+	memset(self->rx_buff.head, 0, self->rx_buff.truesize);
+
+	self->tx_buff.head =
+		dma_alloc_coherent(NULL, self->tx_buff.truesize,
+				   &self->tx_buff_dma, GFP_KERNEL);
+	if (self->tx_buff.head == NULL) {
+		err = -ENOMEM;
+		goto err_out3;
+	}
+	memset(self->tx_buff.head, 0, self->tx_buff.truesize);
+
+	self->rx_buff.in_frame = FALSE;
+	self->rx_buff.state = OUTSIDE_FRAME;
+	self->tx_buff.data = self->tx_buff.head;
+	self->rx_buff.data = self->rx_buff.head;
+
+	/* Reset Tx queue info */
+	self->tx_fifo.len = self->tx_fifo.ptr = self->tx_fifo.free = 0;
+	self->tx_fifo.tail = self->tx_buff.head;
+
+	/* Keep track of module usage */
+	SET_MODULE_OWNER(dev);
+
+	/* Override the network functions we need to use */
+	dev->hard_start_xmit = via_ircc_hard_xmit_sir;
+	dev->open = via_ircc_net_open;
+	dev->stop = via_ircc_net_close;
+	dev->do_ioctl = via_ircc_net_ioctl;
+	dev->get_stats = via_ircc_net_get_stats;
+
+	err = register_netdev(dev);
+	if (err)
+		goto err_out4;
+
+	IRDA_MESSAGE("IrDA: Registered device %s (via-ircc)\n", dev->name);
+
+	/* Initialise the hardware..
+	*/
+	self->io.speed = 9600;
+	via_hw_init(self);
+	return 0;
+ err_out4:
+	dma_free_coherent(NULL, self->tx_buff.truesize,
+			  self->tx_buff.head, self->tx_buff_dma);
+ err_out3:
+	dma_free_coherent(NULL, self->rx_buff.truesize,
+			  self->rx_buff.head, self->rx_buff_dma);
+ err_out2:
+	release_region(self->io.fir_base, self->io.fir_ext);
+ err_out1:
+	free_netdev(dev);
+	dev_self[i] = NULL;
+	return err;
+}
+
+/*
+ * Function via_ircc_close (self)
+ *
+ *    Close driver instance
+ *
+ */
+static int via_ircc_close(struct via_ircc_cb *self)
+{
+	int iobase;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	IRDA_ASSERT(self != NULL, return -1;);
+
+	iobase = self->io.fir_base;
+
+	ResetChip(iobase, 5);	//hardware reset.
+	/* Remove netdevice */
+	unregister_netdev(self->netdev);
+
+	/* Release the PORT that this driver is using */
+	IRDA_DEBUG(2, "%s(), Releasing Region %03x\n",
+		   __FUNCTION__, self->io.fir_base);
+	release_region(self->io.fir_base, self->io.fir_ext);
+	if (self->tx_buff.head)
+		dma_free_coherent(NULL, self->tx_buff.truesize,
+				  self->tx_buff.head, self->tx_buff_dma);
+	if (self->rx_buff.head)
+		dma_free_coherent(NULL, self->rx_buff.truesize,
+				  self->rx_buff.head, self->rx_buff_dma);
+	dev_self[self->index] = NULL;
+
+	free_netdev(self->netdev);
+
+	return 0;
+}
+
+/*
+ * Function via_hw_init(self)
+ *
+ *    Returns non-negative on success.
+ *
+ * Formerly via_ircc_setup 
+ */
+static void via_hw_init(struct via_ircc_cb *self)
+{
+	int iobase = self->io.fir_base;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	SetMaxRxPacketSize(iobase, 0x0fff);	//set to max:4095
+	// FIFO Init
+	EnRXFIFOReadyInt(iobase, OFF);
+	EnRXFIFOHalfLevelInt(iobase, OFF);
+	EnTXFIFOHalfLevelInt(iobase, OFF);
+	EnTXFIFOUnderrunEOMInt(iobase, ON);
+	EnTXFIFOReadyInt(iobase, OFF);
+	InvertTX(iobase, OFF);
+	InvertRX(iobase, OFF);
+
+	if (ReadLPCReg(0x20) == 0x3c)
+		WriteLPCReg(0xF0, 0);	// for VT1211
+	/* Int Init */
+	EnRXSpecInt(iobase, ON);
+
+	/* The following is basically hwreset */
+	/* If this is the case, why not just call hwreset() ? Jean II */
+	ResetChip(iobase, 5);
+	EnableDMA(iobase, OFF);
+	EnableTX(iobase, OFF);
+	EnableRX(iobase, OFF);
+	EnRXDMA(iobase, OFF);
+	EnTXDMA(iobase, OFF);
+	RXStart(iobase, OFF);
+	TXStart(iobase, OFF);
+	InitCard(iobase);
+	CommonInit(iobase);
+	SIRFilter(iobase, ON);
+	SetSIR(iobase, ON);
+	CRC16(iobase, ON);
+	EnTXCRC(iobase, 0);
+	WriteReg(iobase, I_ST_CT_0, 0x00);
+	SetBaudRate(iobase, 9600);
+	SetPulseWidth(iobase, 12);
+	SetSendPreambleCount(iobase, 0);
+
+	self->io.speed = 9600;
+	self->st_fifo.len = 0;
+
+	via_ircc_change_dongle_speed(iobase, self->io.speed,
+				     self->io.dongle_id);
+
+	WriteReg(iobase, I_ST_CT_0, 0x80);
+}
+
+/*
+ * Function via_ircc_read_dongle_id (void)
+ *
+ */
+static int via_ircc_read_dongle_id(int iobase)
+{
+	int dongle_id = 9;	/* Default to IBM */
+
+	IRDA_ERROR("via-ircc: dongle probing not supported, please specify dongle_id module parameter.\n");
+	return dongle_id;
+}
+
+/*
+ * Function via_ircc_change_dongle_speed (iobase, speed, dongle_id)
+ *    Change speed of the attach dongle
+ *    only implement two type of dongle currently.
+ */
+static void via_ircc_change_dongle_speed(int iobase, int speed,
+					 int dongle_id)
+{
+	u8 mode = 0;
+
+	/* speed is unused, as we use IsSIROn()/IsMIROn() */
+	speed = speed;
+
+	IRDA_DEBUG(1, "%s(): change_dongle_speed to %d for 0x%x, %d\n",
+		   __FUNCTION__, speed, iobase, dongle_id);
+
+	switch (dongle_id) {
+
+		/* Note: The dongle_id's listed here are derived from
+		 * nsc-ircc.c */ 
+
+	case 0x08:		/* HP HSDL-2300, HP HSDL-3600/HSDL-3610 */
+		UseOneRX(iobase, ON);	// use one RX pin   RX1,RX2
+		InvertTX(iobase, OFF);
+		InvertRX(iobase, OFF);
+
+		EnRX2(iobase, ON);	//sir to rx2
+		EnGPIOtoRX2(iobase, OFF);
+
+		if (IsSIROn(iobase)) {	//sir
+			// Mode select Off
+			SlowIRRXLowActive(iobase, ON);
+			udelay(1000);
+			SlowIRRXLowActive(iobase, OFF);
+		} else {
+			if (IsMIROn(iobase)) {	//mir
+				// Mode select On
+				SlowIRRXLowActive(iobase, OFF);
+				udelay(20);
+			} else {	// fir
+				if (IsFIROn(iobase)) {	//fir
+					// Mode select On
+					SlowIRRXLowActive(iobase, OFF);
+					udelay(20);
+				}
+			}
+		}
+		break;
+
+	case 0x09:		/* IBM31T1100 or Temic TFDS6000/TFDS6500 */
+		UseOneRX(iobase, ON);	//use ONE RX....RX1
+		InvertTX(iobase, OFF);
+		InvertRX(iobase, OFF);	// invert RX pin
+
+		EnRX2(iobase, ON);
+		EnGPIOtoRX2(iobase, OFF);
+		if (IsSIROn(iobase)) {	//sir
+			// Mode select On
+			SlowIRRXLowActive(iobase, ON);
+			udelay(20);
+			// Mode select Off
+			SlowIRRXLowActive(iobase, OFF);
+		}
+		if (IsMIROn(iobase)) {	//mir
+			// Mode select On
+			SlowIRRXLowActive(iobase, OFF);
+			udelay(20);
+			// Mode select Off
+			SlowIRRXLowActive(iobase, ON);
+		} else {	// fir
+			if (IsFIROn(iobase)) {	//fir
+				// Mode select On
+				SlowIRRXLowActive(iobase, OFF);
+				// TX On
+				WriteTX(iobase, ON);
+				udelay(20);
+				// Mode select OFF
+				SlowIRRXLowActive(iobase, ON);
+				udelay(20);
+				// TX Off
+				WriteTX(iobase, OFF);
+			}
+		}
+		break;
+
+	case 0x0d:
+		UseOneRX(iobase, OFF);	// use two RX pin   RX1,RX2
+		InvertTX(iobase, OFF);
+		InvertRX(iobase, OFF);
+		SlowIRRXLowActive(iobase, OFF);
+		if (IsSIROn(iobase)) {	//sir
+			EnGPIOtoRX2(iobase, OFF);
+			WriteGIO(iobase, OFF);
+			EnRX2(iobase, OFF);	//sir to rx2
+		} else {	// fir mir
+			EnGPIOtoRX2(iobase, OFF);
+			WriteGIO(iobase, OFF);
+			EnRX2(iobase, OFF);	//fir to rx
+		}
+		break;
+
+	case 0x11:		/* Temic TFDS4500 */
+
+		IRDA_DEBUG(2, "%s: Temic TFDS4500: One RX pin, TX normal, RX inverted.\n", __FUNCTION__);
+
+		UseOneRX(iobase, ON);	//use ONE RX....RX1
+		InvertTX(iobase, OFF);
+		InvertRX(iobase, ON);	// invert RX pin
+	
+		EnRX2(iobase, ON);	//sir to rx2
+		EnGPIOtoRX2(iobase, OFF);
+
+		if( IsSIROn(iobase) ){	//sir
+
+			// Mode select On
+			SlowIRRXLowActive(iobase, ON);
+			udelay(20);
+			// Mode select Off
+			SlowIRRXLowActive(iobase, OFF);
+
+		} else{
+			IRDA_DEBUG(0, "%s: Warning: TFDS4500 not running in SIR mode !\n", __FUNCTION__);
+		}
+		break;
+
+	case 0x0ff:		/* Vishay */
+		if (IsSIROn(iobase))
+			mode = 0;
+		else if (IsMIROn(iobase))
+			mode = 1;
+		else if (IsFIROn(iobase))
+			mode = 2;
+		else if (IsVFIROn(iobase))
+			mode = 5;	//VFIR-16
+		SI_SetMode(iobase, mode);
+		break;
+
+	default:
+		IRDA_ERROR("%s: Error: dongle_id %d unsupported !\n",
+			   __FUNCTION__, dongle_id);
+	}
+}
+
+/*
+ * Function via_ircc_change_speed (self, baud)
+ *
+ *    Change the speed of the device
+ *
+ */
+static void via_ircc_change_speed(struct via_ircc_cb *self, __u32 speed)
+{
+	struct net_device *dev = self->netdev;
+	u16 iobase;
+	u8 value = 0, bTmp;
+
+	iobase = self->io.fir_base;
+	/* Update accounting for new speed */
+	self->io.speed = speed;
+	IRDA_DEBUG(1, "%s: change_speed to %d bps.\n", __FUNCTION__, speed);
+
+	WriteReg(iobase, I_ST_CT_0, 0x0);
+
+	/* Controller mode sellection */
+	switch (speed) {
+	case 2400:
+	case 9600:
+	case 19200:
+	case 38400:
+	case 57600:
+	case 115200:
+		value = (115200/speed)-1;
+		SetSIR(iobase, ON);
+		CRC16(iobase, ON);
+		break;
+	case 576000:
+		/* FIXME: this can't be right, as it's the same as 115200,
+		 * and 576000 is MIR, not SIR. */
+		value = 0;
+		SetSIR(iobase, ON);
+		CRC16(iobase, ON);
+		break;
+	case 1152000:
+		value = 0;
+		SetMIR(iobase, ON);
+		/* FIXME: CRC ??? */
+		break;
+	case 4000000:
+		value = 0;
+		SetFIR(iobase, ON);
+		SetPulseWidth(iobase, 0);
+		SetSendPreambleCount(iobase, 14);
+		CRC16(iobase, OFF);
+		EnTXCRC(iobase, ON);
+		break;
+	case 16000000:
+		value = 0;
+		SetVFIR(iobase, ON);
+		/* FIXME: CRC ??? */
+		break;
+	default:
+		value = 0;
+		break;
+	}
+
+	/* Set baudrate to 0x19[2..7] */
+	bTmp = (ReadReg(iobase, I_CF_H_1) & 0x03);
+	bTmp |= value << 2;
+	WriteReg(iobase, I_CF_H_1, bTmp);
+
+	/* Some dongles may need to be informed about speed changes. */
+	via_ircc_change_dongle_speed(iobase, speed, self->io.dongle_id);
+
+	/* Set FIFO size to 64 */
+	SetFIFO(iobase, 64);
+
+	/* Enable IR */
+	WriteReg(iobase, I_ST_CT_0, 0x80);
+
+	// EnTXFIFOHalfLevelInt(iobase,ON);
+
+	/* Enable some interrupts so we can receive frames */
+	//EnAllInt(iobase,ON);
+
+	if (IsSIROn(iobase)) {
+		SIRFilter(iobase, ON);
+		SIRRecvAny(iobase, ON);
+	} else {
+		SIRFilter(iobase, OFF);
+		SIRRecvAny(iobase, OFF);
+	}
+
+	if (speed > 115200) {
+		/* Install FIR xmit handler */
+		dev->hard_start_xmit = via_ircc_hard_xmit_fir;
+		via_ircc_dma_receive(self);
+	} else {
+		/* Install SIR xmit handler */
+		dev->hard_start_xmit = via_ircc_hard_xmit_sir;
+	}
+	netif_wake_queue(dev);
+}
+
+/*
+ * Function via_ircc_hard_xmit (skb, dev)
+ *
+ *    Transmit the frame!
+ *
+ */
+static int via_ircc_hard_xmit_sir(struct sk_buff *skb,
+				  struct net_device *dev)
+{
+	struct via_ircc_cb *self;
+	unsigned long flags;
+	u16 iobase;
+	__u32 speed;
+
+	self = (struct via_ircc_cb *) dev->priv;
+	IRDA_ASSERT(self != NULL, return 0;);
+	iobase = self->io.fir_base;
+
+	netif_stop_queue(dev);
+	/* Check if we need to change the speed */
+	speed = irda_get_next_speed(skb);
+	if ((speed != self->io.speed) && (speed != -1)) {
+		/* Check for empty frame */
+		if (!skb->len) {
+			via_ircc_change_speed(self, speed);
+			dev->trans_start = jiffies;
+			dev_kfree_skb(skb);
+			return 0;
+		} else
+			self->new_speed = speed;
+	}
+	InitCard(iobase);
+	CommonInit(iobase);
+	SIRFilter(iobase, ON);
+	SetSIR(iobase, ON);
+	CRC16(iobase, ON);
+	EnTXCRC(iobase, 0);
+	WriteReg(iobase, I_ST_CT_0, 0x00);
+
+	spin_lock_irqsave(&self->lock, flags);
+	self->tx_buff.data = self->tx_buff.head;
+	self->tx_buff.len =
+	    async_wrap_skb(skb, self->tx_buff.data,
+			   self->tx_buff.truesize);
+
+	self->stats.tx_bytes += self->tx_buff.len;
+	/* Send this frame with old speed */
+	SetBaudRate(iobase, self->io.speed);
+	SetPulseWidth(iobase, 12);
+	SetSendPreambleCount(iobase, 0);
+	WriteReg(iobase, I_ST_CT_0, 0x80);
+
+	EnableTX(iobase, ON);
+	EnableRX(iobase, OFF);
+
+	ResetChip(iobase, 0);
+	ResetChip(iobase, 1);
+	ResetChip(iobase, 2);
+	ResetChip(iobase, 3);
+	ResetChip(iobase, 4);
+
+	EnAllInt(iobase, ON);
+	EnTXDMA(iobase, ON);
+	EnRXDMA(iobase, OFF);
+
+	irda_setup_dma(self->io.dma, self->tx_buff_dma, self->tx_buff.len,
+		       DMA_TX_MODE);
+
+	SetSendByte(iobase, self->tx_buff.len);
+	RXStart(iobase, OFF);
+	TXStart(iobase, ON);
+
+	dev->trans_start = jiffies;
+	spin_unlock_irqrestore(&self->lock, flags);
+	dev_kfree_skb(skb);
+	return 0;
+}
+
+static int via_ircc_hard_xmit_fir(struct sk_buff *skb,
+				  struct net_device *dev)
+{
+	struct via_ircc_cb *self;
+	u16 iobase;
+	__u32 speed;
+	unsigned long flags;
+
+	self = (struct via_ircc_cb *) dev->priv;
+	iobase = self->io.fir_base;
+
+	if (self->st_fifo.len)
+		return 0;
+	if (self->chip_id == 0x3076)
+		iodelay(1500);
+	else
+		udelay(1500);
+	netif_stop_queue(dev);
+	speed = irda_get_next_speed(skb);
+	if ((speed != self->io.speed) && (speed != -1)) {
+		if (!skb->len) {
+			via_ircc_change_speed(self, speed);
+			dev->trans_start = jiffies;
+			dev_kfree_skb(skb);
+			return 0;
+		} else
+			self->new_speed = speed;
+	}
+	spin_lock_irqsave(&self->lock, flags);
+	self->tx_fifo.queue[self->tx_fifo.free].start = self->tx_fifo.tail;
+	self->tx_fifo.queue[self->tx_fifo.free].len = skb->len;
+
+	self->tx_fifo.tail += skb->len;
+	self->stats.tx_bytes += skb->len;
+	memcpy(self->tx_fifo.queue[self->tx_fifo.free].start, skb->data,
+	       skb->len);
+	self->tx_fifo.len++;
+	self->tx_fifo.free++;
+//F01   if (self->tx_fifo.len == 1) {
+	via_ircc_dma_xmit(self, iobase);
+//F01   }
+//F01   if (self->tx_fifo.free < (MAX_TX_WINDOW -1 )) netif_wake_queue(self->netdev);
+	dev->trans_start = jiffies;
+	dev_kfree_skb(skb);
+	spin_unlock_irqrestore(&self->lock, flags);
+	return 0;
+
+}
+
+static int via_ircc_dma_xmit(struct via_ircc_cb *self, u16 iobase)
+{
+	EnTXDMA(iobase, OFF);
+	self->io.direction = IO_XMIT;
+	EnPhys(iobase, ON);
+	EnableTX(iobase, ON);
+	EnableRX(iobase, OFF);
+	ResetChip(iobase, 0);
+	ResetChip(iobase, 1);
+	ResetChip(iobase, 2);
+	ResetChip(iobase, 3);
+	ResetChip(iobase, 4);
+	EnAllInt(iobase, ON);
+	EnTXDMA(iobase, ON);
+	EnRXDMA(iobase, OFF);
+	irda_setup_dma(self->io.dma,
+		       ((u8 *)self->tx_fifo.queue[self->tx_fifo.ptr].start -
+			self->tx_buff.head) + self->tx_buff_dma,
+		       self->tx_fifo.queue[self->tx_fifo.ptr].len, DMA_TX_MODE);
+	IRDA_DEBUG(1, "%s: tx_fifo.ptr=%x,len=%x,tx_fifo.len=%x..\n",
+		   __FUNCTION__, self->tx_fifo.ptr,
+		   self->tx_fifo.queue[self->tx_fifo.ptr].len,
+		   self->tx_fifo.len);
+
+	SetSendByte(iobase, self->tx_fifo.queue[self->tx_fifo.ptr].len);
+	RXStart(iobase, OFF);
+	TXStart(iobase, ON);
+	return 0;
+
+}
+
+/*
+ * Function via_ircc_dma_xmit_complete (self)
+ *
+ *    The transfer of a frame in finished. This function will only be called 
+ *    by the interrupt handler
+ *
+ */
+static int via_ircc_dma_xmit_complete(struct via_ircc_cb *self)
+{
+	int iobase;
+	int ret = TRUE;
+	u8 Tx_status;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	iobase = self->io.fir_base;
+	/* Disable DMA */
+//      DisableDmaChannel(self->io.dma);
+	/* Check for underrrun! */
+	/* Clear bit, by writing 1 into it */
+	Tx_status = GetTXStatus(iobase);
+	if (Tx_status & 0x08) {
+		self->stats.tx_errors++;
+		self->stats.tx_fifo_errors++;
+		hwreset(self);
+// how to clear underrrun ?
+	} else {
+		self->stats.tx_packets++;
+		ResetChip(iobase, 3);
+		ResetChip(iobase, 4);
+	}
+	/* Check if we need to change the speed */
+	if (self->new_speed) {
+		via_ircc_change_speed(self, self->new_speed);
+		self->new_speed = 0;
+	}
+
+	/* Finished with this frame, so prepare for next */
+	if (IsFIROn(iobase)) {
+		if (self->tx_fifo.len) {
+			self->tx_fifo.len--;
+			self->tx_fifo.ptr++;
+		}
+	}
+	IRDA_DEBUG(1,
+		   "%s: tx_fifo.len=%x ,tx_fifo.ptr=%x,tx_fifo.free=%x...\n",
+		   __FUNCTION__,
+		   self->tx_fifo.len, self->tx_fifo.ptr, self->tx_fifo.free);
+/* F01_S
+	// Any frames to be sent back-to-back? 
+	if (self->tx_fifo.len) {
+		// Not finished yet! 
+	  	via_ircc_dma_xmit(self, iobase);
+		ret = FALSE;
+	} else { 
+F01_E*/
+	// Reset Tx FIFO info 
+	self->tx_fifo.len = self->tx_fifo.ptr = self->tx_fifo.free = 0;
+	self->tx_fifo.tail = self->tx_buff.head;
+//F01   }
+
+	// Make sure we have room for more frames 
+//F01   if (self->tx_fifo.free < (MAX_TX_WINDOW -1 )) {
+	// Not busy transmitting anymore 
+	// Tell the network layer, that we can accept more frames 
+	netif_wake_queue(self->netdev);
+//F01   }
+	return ret;
+}
+
+/*
+ * Function via_ircc_dma_receive (self)
+ *
+ *    Set configuration for receive a frame.
+ *
+ */
+static int via_ircc_dma_receive(struct via_ircc_cb *self)
+{
+	int iobase;
+
+	iobase = self->io.fir_base;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	self->tx_fifo.len = self->tx_fifo.ptr = self->tx_fifo.free = 0;
+	self->tx_fifo.tail = self->tx_buff.head;
+	self->RxDataReady = 0;
+	self->io.direction = IO_RECV;
+	self->rx_buff.data = self->rx_buff.head;
+	self->st_fifo.len = self->st_fifo.pending_bytes = 0;
+	self->st_fifo.tail = self->st_fifo.head = 0;
+
+	EnPhys(iobase, ON);
+	EnableTX(iobase, OFF);
+	EnableRX(iobase, ON);
+
+	ResetChip(iobase, 0);
+	ResetChip(iobase, 1);
+	ResetChip(iobase, 2);
+	ResetChip(iobase, 3);
+	ResetChip(iobase, 4);
+
+	EnAllInt(iobase, ON);
+	EnTXDMA(iobase, OFF);
+	EnRXDMA(iobase, ON);
+	irda_setup_dma(self->io.dma2, self->rx_buff_dma,
+		  self->rx_buff.truesize, DMA_RX_MODE);
+	TXStart(iobase, OFF);
+	RXStart(iobase, ON);
+
+	return 0;
+}
+
+/*
+ * Function via_ircc_dma_receive_complete (self)
+ *
+ *    Controller Finished with receiving frames,
+ *    and this routine is call by ISR
+ *    
+ */
+static int via_ircc_dma_receive_complete(struct via_ircc_cb *self,
+					 int iobase)
+{
+	struct st_fifo *st_fifo;
+	struct sk_buff *skb;
+	int len, i;
+	u8 status = 0;
+
+	iobase = self->io.fir_base;
+	st_fifo = &self->st_fifo;
+
+	if (self->io.speed < 4000000) {	//Speed below FIR
+		len = GetRecvByte(iobase, self);
+		skb = dev_alloc_skb(len + 1);
+		if (skb == NULL)
+			return FALSE;
+		// Make sure IP header gets aligned 
+		skb_reserve(skb, 1);
+		skb_put(skb, len - 2);
+		if (self->chip_id == 0x3076) {
+			for (i = 0; i < len - 2; i++)
+				skb->data[i] = self->rx_buff.data[i * 2];
+		} else {
+			if (self->chip_id == 0x3096) {
+				for (i = 0; i < len - 2; i++)
+					skb->data[i] =
+					    self->rx_buff.data[i];
+			}
+		}
+		// Move to next frame 
+		self->rx_buff.data += len;
+		self->stats.rx_bytes += len;
+		self->stats.rx_packets++;
+		skb->dev = self->netdev;
+		skb->mac.raw = skb->data;
+		skb->protocol = htons(ETH_P_IRDA);
+		netif_rx(skb);
+		return TRUE;
+	}
+
+	else {			//FIR mode
+		len = GetRecvByte(iobase, self);
+		if (len == 0)
+			return TRUE;	//interrupt only, data maybe move by RxT  
+		if (((len - 4) < 2) || ((len - 4) > 2048)) {
+			IRDA_DEBUG(1, "%s(): Trouble:len=%x,CurCount=%x,LastCount=%x..\n",
+				   __FUNCTION__, len, RxCurCount(iobase, self),
+				   self->RxLastCount);
+			hwreset(self);
+			return FALSE;
+		}
+		IRDA_DEBUG(2, "%s(): fifo.len=%x,len=%x,CurCount=%x..\n",
+			   __FUNCTION__,
+			   st_fifo->len, len - 4, RxCurCount(iobase, self));
+
+		st_fifo->entries[st_fifo->tail].status = status;
+		st_fifo->entries[st_fifo->tail].len = len;
+		st_fifo->pending_bytes += len;
+		st_fifo->tail++;
+		st_fifo->len++;
+		if (st_fifo->tail > MAX_RX_WINDOW)
+			st_fifo->tail = 0;
+		self->RxDataReady = 0;
+
+		// It maybe have MAX_RX_WINDOW package receive by
+		// receive_complete before Timer IRQ
+/* F01_S
+          if (st_fifo->len < (MAX_RX_WINDOW+2 )) { 
+		  RXStart(iobase,ON);
+	  	  SetTimer(iobase,4);
+	  }
+	  else	  { 
+F01_E */
+		EnableRX(iobase, OFF);
+		EnRXDMA(iobase, OFF);
+		RXStart(iobase, OFF);
+//F01_S
+		// Put this entry back in fifo 
+		if (st_fifo->head > MAX_RX_WINDOW)
+			st_fifo->head = 0;
+		status = st_fifo->entries[st_fifo->head].status;
+		len = st_fifo->entries[st_fifo->head].len;
+		st_fifo->head++;
+		st_fifo->len--;
+
+		skb = dev_alloc_skb(len + 1 - 4);
+		/*
+		 * if frame size,data ptr,or skb ptr are wrong ,the get next
+		 * entry.
+		 */
+		if ((skb == NULL) || (skb->data == NULL)
+		    || (self->rx_buff.data == NULL) || (len < 6)) {
+			self->stats.rx_dropped++;
+			return TRUE;
+		}
+		skb_reserve(skb, 1);
+		skb_put(skb, len - 4);
+
+		memcpy(skb->data, self->rx_buff.data, len - 4);
+		IRDA_DEBUG(2, "%s(): len=%x.rx_buff=%p\n", __FUNCTION__,
+			   len - 4, self->rx_buff.data);
+
+		// Move to next frame 
+		self->rx_buff.data += len;
+		self->stats.rx_bytes += len;
+		self->stats.rx_packets++;
+		skb->dev = self->netdev;
+		skb->mac.raw = skb->data;
+		skb->protocol = htons(ETH_P_IRDA);
+		netif_rx(skb);
+
+//F01_E
+	}			//FIR
+	return TRUE;
+
+}
+
+/*
+ * if frame is received , but no INT ,then use this routine to upload frame.
+ */
+static int upload_rxdata(struct via_ircc_cb *self, int iobase)
+{
+	struct sk_buff *skb;
+	int len;
+	struct st_fifo *st_fifo;
+	st_fifo = &self->st_fifo;
+
+	len = GetRecvByte(iobase, self);
+
+	IRDA_DEBUG(2, "%s(): len=%x\n", __FUNCTION__, len);
+
+	skb = dev_alloc_skb(len + 1);
+	if ((skb == NULL) || ((len - 4) < 2)) {
+		self->stats.rx_dropped++;
+		return FALSE;
+	}
+	skb_reserve(skb, 1);
+	skb_put(skb, len - 4 + 1);
+	memcpy(skb->data, self->rx_buff.data, len - 4 + 1);
+	st_fifo->tail++;
+	st_fifo->len++;
+	if (st_fifo->tail > MAX_RX_WINDOW)
+		st_fifo->tail = 0;
+	// Move to next frame 
+	self->rx_buff.data += len;
+	self->stats.rx_bytes += len;
+	self->stats.rx_packets++;
+	skb->dev = self->netdev;
+	skb->mac.raw = skb->data;
+	skb->protocol = htons(ETH_P_IRDA);
+	netif_rx(skb);
+	if (st_fifo->len < (MAX_RX_WINDOW + 2)) {
+		RXStart(iobase, ON);
+	} else {
+		EnableRX(iobase, OFF);
+		EnRXDMA(iobase, OFF);
+		RXStart(iobase, OFF);
+	}
+	return TRUE;
+}
+
+/*
+ * Implement back to back receive , use this routine to upload data.
+ */
+
+static int RxTimerHandler(struct via_ircc_cb *self, int iobase)
+{
+	struct st_fifo *st_fifo;
+	struct sk_buff *skb;
+	int len;
+	u8 status;
+
+	st_fifo = &self->st_fifo;
+
+	if (CkRxRecv(iobase, self)) {
+		// if still receiving ,then return ,don't upload frame 
+		self->RetryCount = 0;
+		SetTimer(iobase, 20);
+		self->RxDataReady++;
+		return FALSE;
+	} else
+		self->RetryCount++;
+
+	if ((self->RetryCount >= 1) ||
+	    ((st_fifo->pending_bytes + 2048) > self->rx_buff.truesize)
+	    || (st_fifo->len >= (MAX_RX_WINDOW))) {
+		while (st_fifo->len > 0) {	//upload frame
+			// Put this entry back in fifo 
+			if (st_fifo->head > MAX_RX_WINDOW)
+				st_fifo->head = 0;
+			status = st_fifo->entries[st_fifo->head].status;
+			len = st_fifo->entries[st_fifo->head].len;
+			st_fifo->head++;
+			st_fifo->len--;
+
+			skb = dev_alloc_skb(len + 1 - 4);
+			/*
+			 * if frame size, data ptr, or skb ptr are wrong,
+			 * then get next entry.
+			 */
+			if ((skb == NULL) || (skb->data == NULL)
+			    || (self->rx_buff.data == NULL) || (len < 6)) {
+				self->stats.rx_dropped++;
+				continue;
+			}
+			skb_reserve(skb, 1);
+			skb_put(skb, len - 4);
+			memcpy(skb->data, self->rx_buff.data, len - 4);
+
+			IRDA_DEBUG(2, "%s(): len=%x.head=%x\n", __FUNCTION__,
+				   len - 4, st_fifo->head);
+
+			// Move to next frame 
+			self->rx_buff.data += len;
+			self->stats.rx_bytes += len;
+			self->stats.rx_packets++;
+			skb->dev = self->netdev;
+			skb->mac.raw = skb->data;
+			skb->protocol = htons(ETH_P_IRDA);
+			netif_rx(skb);
+		}		//while
+		self->RetryCount = 0;
+
+		IRDA_DEBUG(2,
+			   "%s(): End of upload HostStatus=%x,RxStatus=%x\n",
+			   __FUNCTION__,
+			   GetHostStatus(iobase), GetRXStatus(iobase));
+
+		/*
+		 * if frame is receive complete at this routine ,then upload
+		 * frame.
+		 */
+		if ((GetRXStatus(iobase) & 0x10)
+		    && (RxCurCount(iobase, self) != self->RxLastCount)) {
+			upload_rxdata(self, iobase);
+			if (irda_device_txqueue_empty(self->netdev))
+				via_ircc_dma_receive(self);
+		}
+	}			// timer detect complete
+	else
+		SetTimer(iobase, 4);
+	return TRUE;
+
+}
+
+
+
+/*
+ * Function via_ircc_interrupt (irq, dev_id, regs)
+ *
+ *    An interrupt from the chip has arrived. Time to do some work
+ *
+ */
+static irqreturn_t via_ircc_interrupt(int irq, void *dev_id,
+				      struct pt_regs *regs)
+{
+	struct net_device *dev = (struct net_device *) dev_id;
+	struct via_ircc_cb *self;
+	int iobase;
+	u8 iHostIntType, iRxIntType, iTxIntType;
+
+	if (!dev) {
+		IRDA_WARNING("%s: irq %d for unknown device.\n", driver_name,
+			     irq);
+		return IRQ_NONE;
+	}
+	self = (struct via_ircc_cb *) dev->priv;
+	iobase = self->io.fir_base;
+	spin_lock(&self->lock);
+	iHostIntType = GetHostStatus(iobase);
+
+	IRDA_DEBUG(4, "%s(): iHostIntType %02x:  %s %s %s  %02x\n",
+		   __FUNCTION__, iHostIntType,
+		   (iHostIntType & 0x40) ? "Timer" : "",
+		   (iHostIntType & 0x20) ? "Tx" : "",
+		   (iHostIntType & 0x10) ? "Rx" : "",
+		   (iHostIntType & 0x0e) >> 1);
+
+	if ((iHostIntType & 0x40) != 0) {	//Timer Event
+		self->EventFlag.TimeOut++;
+		ClearTimerInt(iobase, 1);
+		if (self->io.direction == IO_XMIT) {
+			via_ircc_dma_xmit(self, iobase);
+		}
+		if (self->io.direction == IO_RECV) {
+			/*
+			 * frame ready hold too long, must reset.
+			 */
+			if (self->RxDataReady > 30) {
+				hwreset(self);
+				if (irda_device_txqueue_empty(self->netdev)) {
+					via_ircc_dma_receive(self);
+				}
+			} else {	// call this to upload frame.
+				RxTimerHandler(self, iobase);
+			}
+		}		//RECV
+	}			//Timer Event
+	if ((iHostIntType & 0x20) != 0) {	//Tx Event
+		iTxIntType = GetTXStatus(iobase);
+
+		IRDA_DEBUG(4, "%s(): iTxIntType %02x:  %s %s %s %s\n",
+			   __FUNCTION__, iTxIntType,
+			   (iTxIntType & 0x08) ? "FIFO underr." : "",
+			   (iTxIntType & 0x04) ? "EOM" : "",
+			   (iTxIntType & 0x02) ? "FIFO ready" : "",
+			   (iTxIntType & 0x01) ? "Early EOM" : "");
+
+		if (iTxIntType & 0x4) {
+			self->EventFlag.EOMessage++;	// read and will auto clean
+			if (via_ircc_dma_xmit_complete(self)) {
+				if (irda_device_txqueue_empty
+				    (self->netdev)) {
+					via_ircc_dma_receive(self);
+				}
+			} else {
+				self->EventFlag.Unknown++;
+			}
+		}		//EOP
+	}			//Tx Event
+	//----------------------------------------
+	if ((iHostIntType & 0x10) != 0) {	//Rx Event
+		/* Check if DMA has finished */
+		iRxIntType = GetRXStatus(iobase);
+
+		IRDA_DEBUG(4, "%s(): iRxIntType %02x:  %s %s %s %s %s %s %s\n",
+			   __FUNCTION__, iRxIntType,
+			   (iRxIntType & 0x80) ? "PHY err."	: "",
+			   (iRxIntType & 0x40) ? "CRC err"	: "",
+			   (iRxIntType & 0x20) ? "FIFO overr."	: "",
+			   (iRxIntType & 0x10) ? "EOF"		: "",
+			   (iRxIntType & 0x08) ? "RxData"	: "",
+			   (iRxIntType & 0x02) ? "RxMaxLen"	: "",
+			   (iRxIntType & 0x01) ? "SIR bad"	: "");
+		if (!iRxIntType)
+			IRDA_DEBUG(3, "%s(): RxIRQ =0\n", __FUNCTION__);
+
+		if (iRxIntType & 0x10) {
+			if (via_ircc_dma_receive_complete(self, iobase)) {
+//F01       if(!(IsFIROn(iobase)))  via_ircc_dma_receive(self);
+				via_ircc_dma_receive(self);
+			}
+		}		// No ERR     
+		else {		//ERR
+			IRDA_DEBUG(4, "%s(): RxIRQ ERR:iRxIntType=%x,HostIntType=%x,CurCount=%x,RxLastCount=%x_____\n",
+				   __FUNCTION__, iRxIntType, iHostIntType,
+				   RxCurCount(iobase, self),
+				   self->RxLastCount);
+
+			if (iRxIntType & 0x20) {	//FIFO OverRun ERR
+				ResetChip(iobase, 0);
+				ResetChip(iobase, 1);
+			} else {	//PHY,CRC ERR
+
+				if (iRxIntType != 0x08)
+					hwreset(self);	//F01
+			}
+			via_ircc_dma_receive(self);
+		}		//ERR
+
+	}			//Rx Event
+	spin_unlock(&self->lock);
+	return IRQ_RETVAL(iHostIntType);
+}
+
+static void hwreset(struct via_ircc_cb *self)
+{
+	int iobase;
+	iobase = self->io.fir_base;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	ResetChip(iobase, 5);
+	EnableDMA(iobase, OFF);
+	EnableTX(iobase, OFF);
+	EnableRX(iobase, OFF);
+	EnRXDMA(iobase, OFF);
+	EnTXDMA(iobase, OFF);
+	RXStart(iobase, OFF);
+	TXStart(iobase, OFF);
+	InitCard(iobase);
+	CommonInit(iobase);
+	SIRFilter(iobase, ON);
+	SetSIR(iobase, ON);
+	CRC16(iobase, ON);
+	EnTXCRC(iobase, 0);
+	WriteReg(iobase, I_ST_CT_0, 0x00);
+	SetBaudRate(iobase, 9600);
+	SetPulseWidth(iobase, 12);
+	SetSendPreambleCount(iobase, 0);
+	WriteReg(iobase, I_ST_CT_0, 0x80);
+
+	/* Restore speed. */
+	via_ircc_change_speed(self, self->io.speed);
+
+	self->st_fifo.len = 0;
+}
+
+/*
+ * Function via_ircc_is_receiving (self)
+ *
+ *    Return TRUE is we are currently receiving a frame
+ *
+ */
+static int via_ircc_is_receiving(struct via_ircc_cb *self)
+{
+	int status = FALSE;
+	int iobase;
+
+	IRDA_ASSERT(self != NULL, return FALSE;);
+
+	iobase = self->io.fir_base;
+	if (CkRxRecv(iobase, self))
+		status = TRUE;
+
+	IRDA_DEBUG(2, "%s(): status=%x....\n", __FUNCTION__, status);
+
+	return status;
+}
+
+
+/*
+ * Function via_ircc_net_open (dev)
+ *
+ *    Start the device
+ *
+ */
+static int via_ircc_net_open(struct net_device *dev)
+{
+	struct via_ircc_cb *self;
+	int iobase;
+	char hwname[32];
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	IRDA_ASSERT(dev != NULL, return -1;);
+	self = (struct via_ircc_cb *) dev->priv;
+	self->stats.rx_packets = 0;
+	IRDA_ASSERT(self != NULL, return 0;);
+	iobase = self->io.fir_base;
+	if (request_irq(self->io.irq, via_ircc_interrupt, 0, dev->name, dev)) {
+		IRDA_WARNING("%s, unable to allocate irq=%d\n", driver_name,
+			     self->io.irq);
+		return -EAGAIN;
+	}
+	/*
+	 * Always allocate the DMA channel after the IRQ, and clean up on 
+	 * failure.
+	 */
+	if (request_dma(self->io.dma, dev->name)) {
+		IRDA_WARNING("%s, unable to allocate dma=%d\n", driver_name,
+			     self->io.dma);
+		free_irq(self->io.irq, self);
+		return -EAGAIN;
+	}
+	if (self->io.dma2 != self->io.dma) {
+		if (request_dma(self->io.dma2, dev->name)) {
+			IRDA_WARNING("%s, unable to allocate dma2=%d\n",
+				     driver_name, self->io.dma2);
+			free_irq(self->io.irq, self);
+			return -EAGAIN;
+		}
+	}
+
+
+	/* turn on interrupts */
+	EnAllInt(iobase, ON);
+	EnInternalLoop(iobase, OFF);
+	EnExternalLoop(iobase, OFF);
+
+	/* */
+	via_ircc_dma_receive(self);
+
+	/* Ready to play! */
+	netif_start_queue(dev);
+
+	/* 
+	 * Open new IrLAP layer instance, now that everything should be
+	 * initialized properly 
+	 */
+	sprintf(hwname, "VIA @ 0x%x", iobase);
+	self->irlap = irlap_open(dev, &self->qos, hwname);
+
+	self->RxLastCount = 0;
+
+	return 0;
+}
+
+/*
+ * Function via_ircc_net_close (dev)
+ *
+ *    Stop the device
+ *
+ */
+static int via_ircc_net_close(struct net_device *dev)
+{
+	struct via_ircc_cb *self;
+	int iobase;
+
+	IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+
+	IRDA_ASSERT(dev != NULL, return -1;);
+	self = (struct via_ircc_cb *) dev->priv;
+	IRDA_ASSERT(self != NULL, return 0;);
+
+	/* Stop device */
+	netif_stop_queue(dev);
+	/* Stop and remove instance of IrLAP */
+	if (self->irlap)
+		irlap_close(self->irlap);
+	self->irlap = NULL;
+	iobase = self->io.fir_base;
+	EnTXDMA(iobase, OFF);
+	EnRXDMA(iobase, OFF);
+	DisableDmaChannel(self->io.dma);
+
+	/* Disable interrupts */
+	EnAllInt(iobase, OFF);
+	free_irq(self->io.irq, dev);
+	free_dma(self->io.dma);
+
+	return 0;
+}
+
+/*
+ * Function via_ircc_net_ioctl (dev, rq, cmd)
+ *
+ *    Process IOCTL commands for this device
+ *
+ */
+static int via_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq,
+			      int cmd)
+{
+	struct if_irda_req *irq = (struct if_irda_req *) rq;
+	struct via_ircc_cb *self;
+	unsigned long flags;
+	int ret = 0;
+
+	IRDA_ASSERT(dev != NULL, return -1;);
+	self = dev->priv;
+	IRDA_ASSERT(self != NULL, return -1;);
+	IRDA_DEBUG(1, "%s(), %s, (cmd=0x%X)\n", __FUNCTION__, dev->name,
+		   cmd);
+	/* Disable interrupts & save flags */
+	spin_lock_irqsave(&self->lock, flags);
+	switch (cmd) {
+	case SIOCSBANDWIDTH:	/* Set bandwidth */
+		if (!capable(CAP_NET_ADMIN)) {
+			ret = -EPERM;
+			goto out;
+		}
+		via_ircc_change_speed(self, irq->ifr_baudrate);
+		break;
+	case SIOCSMEDIABUSY:	/* Set media busy */
+		if (!capable(CAP_NET_ADMIN)) {
+			ret = -EPERM;
+			goto out;
+		}
+		irda_device_set_media_busy(self->netdev, TRUE);
+		break;
+	case SIOCGRECEIVING:	/* Check if we are receiving right now */
+		irq->ifr_receiving = via_ircc_is_receiving(self);
+		break;
+	default:
+		ret = -EOPNOTSUPP;
+	}
+      out:
+	spin_unlock_irqrestore(&self->lock, flags);
+	return ret;
+}
+
+static struct net_device_stats *via_ircc_net_get_stats(struct net_device
+						       *dev)
+{
+	struct via_ircc_cb *self = (struct via_ircc_cb *) dev->priv;
+
+	return &self->stats;
+}
+
+MODULE_AUTHOR("VIA Technologies,inc");
+MODULE_DESCRIPTION("VIA IrDA Device Driver");
+MODULE_LICENSE("GPL");
+
+module_init(via_ircc_init);
+module_exit(via_ircc_cleanup);