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, 2277 insertions, 0 deletions

diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c
new file mode 100644
index 00000000000..9bf34681d3d
--- /dev/null
+++ b/drivers/net/irda/ali-ircc.c
@@ -0,0 +1,2277 @@
+/*********************************************************************
+ *                
+ * Filename:      ali-ircc.h
+ * Version:       0.5
+ * Description:   Driver for the ALI M1535D and M1543C FIR Controller
+ * Status:        Experimental.
+ * Author:        Benjamin Kong <benjamin_kong@ali.com.tw>
+ * Created at:    2000/10/16 03:46PM
+ * Modified at:   2001/1/3 02:55PM
+ * Modified by:   Benjamin Kong <benjamin_kong@ali.com.tw>
+ * Modified at:   2003/11/6 and support for ALi south-bridge chipsets M1563
+ * Modified by:   Clear Zhang <clear_zhang@ali.com.tw>
+ * 
+ *     Copyright (c) 2000 Benjamin Kong <benjamin_kong@ali.com.tw>
+ *     All Rights Reserved
+ *      
+ *     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.
+ *  
+ ********************************************************************/
+
+#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/serial_reg.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 "ali-ircc.h"
+
+#define CHIP_IO_EXTENT 8
+#define BROKEN_DONGLE_ID
+
+static char *driver_name = "ali-ircc";
+
+/* Module parameters */
+static int qos_mtt_bits = 0x07;  /* 1 ms or more */
+
+/* Use BIOS settions by default, but user may supply module parameters */
+static unsigned int io[]  = { ~0, ~0, ~0, ~0 };
+static unsigned int irq[] = { 0, 0, 0, 0 };
+static unsigned int dma[] = { 0, 0, 0, 0 };
+
+static int  ali_ircc_probe_53(ali_chip_t *chip, chipio_t *info);
+static int  ali_ircc_init_43(ali_chip_t *chip, chipio_t *info);
+static int  ali_ircc_init_53(ali_chip_t *chip, chipio_t *info);
+
+/* These are the currently known ALi sourth-bridge chipsets, the only one difference
+ * is that M1543C doesn't support HP HDSL-3600
+ */
+static ali_chip_t chips[] =
+{
+	{ "M1543", { 0x3f0, 0x370 }, 0x51, 0x23, 0x20, 0x43, ali_ircc_probe_53, ali_ircc_init_43 },
+	{ "M1535", { 0x3f0, 0x370 }, 0x51, 0x23, 0x20, 0x53, ali_ircc_probe_53, ali_ircc_init_53 },
+	{ "M1563", { 0x3f0, 0x370 }, 0x51, 0x23, 0x20, 0x63, ali_ircc_probe_53, ali_ircc_init_53 },
+	{ NULL }
+};
+
+/* Max 4 instances for now */
+static struct ali_ircc_cb *dev_self[] = { NULL, NULL, NULL, NULL };
+
+/* Dongle Types */
+static char *dongle_types[] = {
+	"TFDS6000",
+	"HP HSDL-3600",
+	"HP HSDL-1100",	
+	"No dongle connected",
+};
+
+/* Some prototypes */
+static int  ali_ircc_open(int i, chipio_t *info);
+
+static int  ali_ircc_close(struct ali_ircc_cb *self);
+
+static int  ali_ircc_setup(chipio_t *info);
+static int  ali_ircc_is_receiving(struct ali_ircc_cb *self);
+static int  ali_ircc_net_open(struct net_device *dev);
+static int  ali_ircc_net_close(struct net_device *dev);
+static int  ali_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static int  ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data);
+static void ali_ircc_change_speed(struct ali_ircc_cb *self, __u32 baud);
+static void ali_ircc_suspend(struct ali_ircc_cb *self);
+static void ali_ircc_wakeup(struct ali_ircc_cb *self);
+static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev);
+
+/* SIR function */
+static int  ali_ircc_sir_hard_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t ali_ircc_sir_interrupt(struct ali_ircc_cb *self);
+static void ali_ircc_sir_receive(struct ali_ircc_cb *self);
+static void ali_ircc_sir_write_wakeup(struct ali_ircc_cb *self);
+static int  ali_ircc_sir_write(int iobase, int fifo_size, __u8 *buf, int len);
+static void ali_ircc_sir_change_speed(struct ali_ircc_cb *priv, __u32 speed);
+
+/* FIR function */
+static int  ali_ircc_fir_hard_xmit(struct sk_buff *skb, struct net_device *dev);
+static void ali_ircc_fir_change_speed(struct ali_ircc_cb *priv, __u32 speed);
+static irqreturn_t ali_ircc_fir_interrupt(struct ali_ircc_cb *self);
+static int  ali_ircc_dma_receive(struct ali_ircc_cb *self); 
+static int  ali_ircc_dma_receive_complete(struct ali_ircc_cb *self);
+static int  ali_ircc_dma_xmit_complete(struct ali_ircc_cb *self);
+static void ali_ircc_dma_xmit(struct ali_ircc_cb *self);
+
+/* My Function */
+static int  ali_ircc_read_dongle_id (int i, chipio_t *info);
+static void ali_ircc_change_dongle_speed(struct ali_ircc_cb *priv, int speed);
+
+/* ALi chip function */
+static void SIR2FIR(int iobase);
+static void FIR2SIR(int iobase);
+static void SetCOMInterrupts(struct ali_ircc_cb *self , unsigned char enable);
+
+/*
+ * Function ali_ircc_init ()
+ *
+ *    Initialize chip. Find out whay kinds of chips we are dealing with
+ *    and their configuation registers address
+ */
+static int __init ali_ircc_init(void)
+{
+	ali_chip_t *chip;
+	chipio_t info;
+	int ret = -ENODEV;
+	int cfg, cfg_base;
+	int reg, revision;
+	int i = 0;
+	
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+	
+	/* Probe for all the ALi chipsets we know about */
+	for (chip= chips; chip->name; chip++, i++) 
+	{
+		IRDA_DEBUG(2, "%s(), Probing for %s ...\n", __FUNCTION__, chip->name);
+				
+		/* Try all config registers for this chip */
+		for (cfg=0; cfg<2; cfg++)
+		{
+			cfg_base = chip->cfg[cfg];
+			if (!cfg_base)
+				continue;
+				
+			memset(&info, 0, sizeof(chipio_t));
+			info.cfg_base = cfg_base;
+			info.fir_base = io[i];
+			info.dma = dma[i];
+			info.irq = irq[i];
+			
+			
+			/* Enter Configuration */
+			outb(chip->entr1, cfg_base);
+			outb(chip->entr2, cfg_base);
+			
+			/* Select Logical Device 5 Registers (UART2) */
+			outb(0x07, cfg_base);
+			outb(0x05, cfg_base+1);
+			
+			/* Read Chip Identification Register */
+			outb(chip->cid_index, cfg_base);	
+			reg = inb(cfg_base+1);	
+				
+			if (reg == chip->cid_value)
+			{
+				IRDA_DEBUG(2, "%s(), Chip found at 0x%03x\n", __FUNCTION__, cfg_base);
+					   
+				outb(0x1F, cfg_base);
+				revision = inb(cfg_base+1);
+				IRDA_DEBUG(2, "%s(), Found %s chip, revision=%d\n", __FUNCTION__,
+					   chip->name, revision);					
+				
+				/* 
+				 * If the user supplies the base address, then
+				 * we init the chip, if not we probe the values
+				 * set by the BIOS
+				 */				
+				if (io[i] < 2000)
+				{
+					chip->init(chip, &info);
+				}
+				else
+				{
+					chip->probe(chip, &info);	
+				}
+				
+				if (ali_ircc_open(i, &info) == 0)
+					ret = 0;
+				i++;				
+			}
+			else
+			{
+				IRDA_DEBUG(2, "%s(), No %s chip at 0x%03x\n", __FUNCTION__, chip->name, cfg_base);
+			}
+			/* Exit configuration */
+			outb(0xbb, cfg_base);
+		}
+	}		
+		
+	IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);					   		
+	return ret;
+}
+
+/*
+ * Function ali_ircc_cleanup ()
+ *
+ *    Close all configured chips
+ *
+ */
+static void __exit ali_ircc_cleanup(void)
+{
+	int i;
+
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);	
+	
+	pm_unregister_all(ali_ircc_pmproc);
+
+	for (i=0; i < 4; i++) {
+		if (dev_self[i])
+			ali_ircc_close(dev_self[i]);
+	}
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
+}
+
+/*
+ * Function ali_ircc_open (int i, chipio_t *inf)
+ *
+ *    Open driver instance
+ *
+ */
+static int ali_ircc_open(int i, chipio_t *info)
+{
+	struct net_device *dev;
+	struct ali_ircc_cb *self;
+	struct pm_dev *pmdev;
+	int dongle_id;
+	int err;
+			
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);	
+	
+	/* Set FIR FIFO and DMA Threshold */
+	if ((ali_ircc_setup(info)) == -1)
+		return -1;
+		
+	dev = alloc_irdadev(sizeof(*self));
+	if (dev == NULL) {
+		IRDA_ERROR("%s(), can't allocate memory for control block!\n",
+			   __FUNCTION__);
+		return -ENOMEM;
+	}
+
+	self = dev->priv;
+	self->netdev = dev;
+	spin_lock_init(&self->lock);
+   
+	/* Need to store self somewhere */
+	dev_self[i] = self;
+	self->index = i;
+
+	/* Initialize IO */
+	self->io.cfg_base  = info->cfg_base;	/* In ali_ircc_probe_53 assign 		*/
+	self->io.fir_base  = info->fir_base;	/* info->sir_base = info->fir_base 	*/
+	self->io.sir_base  = info->sir_base; 	/* ALi SIR and FIR use the same address */
+        self->io.irq       = info->irq;
+        self->io.fir_ext   = CHIP_IO_EXTENT;
+        self->io.dma       = info->dma;
+        self->io.fifo_size = 16;		/* SIR: 16, FIR: 32 Benjamin 2000/11/1 */
+	
+	/* Reserve the ioports that we need */
+	if (!request_region(self->io.fir_base, self->io.fir_ext, driver_name)) {
+		IRDA_WARNING("%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);
+	
+	/* The only value we must override it the baudrate */
+	self->qos.baud_rate.bits = IR_9600|IR_19200|IR_38400|IR_57600|
+		IR_115200|IR_576000|IR_1152000|(IR_4000000 << 8); // benjamin 2000/11/8 05:27PM
+			
+	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; 
+	self->tx_buff.truesize = 14384;
+
+	/* 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 = ali_ircc_sir_hard_xmit;
+	dev->open            = ali_ircc_net_open;
+	dev->stop            = ali_ircc_net_close;
+	dev->do_ioctl        = ali_ircc_net_ioctl;
+	dev->get_stats	     = ali_ircc_net_get_stats;
+
+	err = register_netdev(dev);
+	if (err) {
+		IRDA_ERROR("%s(), register_netdev() failed!\n", __FUNCTION__);
+		goto err_out4;
+	}
+	IRDA_MESSAGE("IrDA: Registered device %s\n", dev->name);
+
+	/* Check dongle id */
+	dongle_id = ali_ircc_read_dongle_id(i, info);
+	IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__, driver_name, dongle_types[dongle_id]);
+		
+	self->io.dongle_id = dongle_id;
+	
+        pmdev = pm_register(PM_SYS_DEV, PM_SYS_IRDA, ali_ircc_pmproc);
+        if (pmdev)
+                pmdev->data = self;
+
+	IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
+	
+	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:
+	dev_self[i] = NULL;
+	free_netdev(dev);
+	return err;
+}
+
+
+/*
+ * Function ali_ircc_close (self)
+ *
+ *    Close driver instance
+ *
+ */
+static int __exit ali_ircc_close(struct ali_ircc_cb *self)
+{
+	int iobase;
+
+	IRDA_DEBUG(4, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+
+	IRDA_ASSERT(self != NULL, return -1;);
+
+        iobase = self->io.fir_base;
+
+	/* Remove netdevice */
+	unregister_netdev(self->netdev);
+
+	/* Release the PORT that this driver is using */
+	IRDA_DEBUG(4, "%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);
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
+	
+	return 0;
+}
+
+/*
+ * Function ali_ircc_init_43 (chip, info)
+ *
+ *    Initialize the ALi M1543 chip. 
+ */
+static int ali_ircc_init_43(ali_chip_t *chip, chipio_t *info) 
+{
+	/* All controller information like I/O address, DMA channel, IRQ
+	 * are set by BIOS
+	 */
+	
+	return 0;
+}
+
+/*
+ * Function ali_ircc_init_53 (chip, info)
+ *
+ *    Initialize the ALi M1535 chip. 
+ */
+static int ali_ircc_init_53(ali_chip_t *chip, chipio_t *info) 
+{
+	/* All controller information like I/O address, DMA channel, IRQ
+	 * are set by BIOS
+	 */
+	
+	return 0;
+}
+
+/*
+ * Function ali_ircc_probe_53 (chip, info)
+ *    	
+ *	Probes for the ALi M1535D or M1535
+ */
+static int ali_ircc_probe_53(ali_chip_t *chip, chipio_t *info)
+{
+	int cfg_base = info->cfg_base;
+	int hi, low, reg;
+	
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+	
+	/* Enter Configuration */
+	outb(chip->entr1, cfg_base);
+	outb(chip->entr2, cfg_base);
+	
+	/* Select Logical Device 5 Registers (UART2) */
+	outb(0x07, cfg_base);
+	outb(0x05, cfg_base+1);
+	
+	/* Read address control register */
+	outb(0x60, cfg_base);
+	hi = inb(cfg_base+1);	
+	outb(0x61, cfg_base);
+	low = inb(cfg_base+1);
+	info->fir_base = (hi<<8) + low;
+	
+	info->sir_base = info->fir_base;
+	
+	IRDA_DEBUG(2, "%s(), probing fir_base=0x%03x\n", __FUNCTION__, info->fir_base);
+		
+	/* Read IRQ control register */
+	outb(0x70, cfg_base);
+	reg = inb(cfg_base+1);
+	info->irq = reg & 0x0f;
+	IRDA_DEBUG(2, "%s(), probing irq=%d\n", __FUNCTION__, info->irq);
+	
+	/* Read DMA channel */
+	outb(0x74, cfg_base);
+	reg = inb(cfg_base+1);
+	info->dma = reg & 0x07;
+	
+	if(info->dma == 0x04)
+		IRDA_WARNING("%s(), No DMA channel assigned !\n", __FUNCTION__);
+	else
+		IRDA_DEBUG(2, "%s(), probing dma=%d\n", __FUNCTION__, info->dma);
+	
+	/* Read Enabled Status */
+	outb(0x30, cfg_base);
+	reg = inb(cfg_base+1);
+	info->enabled = (reg & 0x80) && (reg & 0x01);
+	IRDA_DEBUG(2, "%s(), probing enabled=%d\n", __FUNCTION__, info->enabled);
+	
+	/* Read Power Status */
+	outb(0x22, cfg_base);
+	reg = inb(cfg_base+1);
+	info->suspended = (reg & 0x20);
+	IRDA_DEBUG(2, "%s(), probing suspended=%d\n", __FUNCTION__, info->suspended);
+	
+	/* Exit configuration */
+	outb(0xbb, cfg_base);
+		
+	IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);	
+	
+	return 0;	
+}
+
+/*
+ * Function ali_ircc_setup (info)
+ *
+ *    	Set FIR FIFO and DMA Threshold
+ *	Returns non-negative on success.
+ *
+ */
+static int ali_ircc_setup(chipio_t *info)
+{
+	unsigned char tmp;
+	int version;
+	int iobase = info->fir_base;
+	
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+	
+	/* Locking comments :
+	 * Most operations here need to be protected. We are called before
+	 * the device instance is created in ali_ircc_open(), therefore 
+	 * nobody can bother us - Jean II */
+
+	/* Switch to FIR space */
+	SIR2FIR(iobase);
+	
+	/* Master Reset */
+	outb(0x40, iobase+FIR_MCR); // benjamin 2000/11/30 11:45AM
+	
+	/* Read FIR ID Version Register */
+	switch_bank(iobase, BANK3);
+	version = inb(iobase+FIR_ID_VR);
+	
+	/* Should be 0x00 in the M1535/M1535D */
+	if(version != 0x00)
+	{
+		IRDA_ERROR("%s, Wrong chip version %02x\n", driver_name, version);
+		return -1;
+	}
+	
+	// IRDA_MESSAGE("%s, Found chip at base=0x%03x\n", driver_name, info->cfg_base);
+	
+	/* Set FIR FIFO Threshold Register */
+	switch_bank(iobase, BANK1);
+	outb(RX_FIFO_Threshold, iobase+FIR_FIFO_TR);
+	
+	/* Set FIR DMA Threshold Register */
+	outb(RX_DMA_Threshold, iobase+FIR_DMA_TR);
+	
+	/* CRC enable */
+	switch_bank(iobase, BANK2);
+	outb(inb(iobase+FIR_IRDA_CR) | IRDA_CR_CRC, iobase+FIR_IRDA_CR);
+	
+	/* NDIS driver set TX Length here BANK2 Alias 3, Alias4*/
+	
+	/* Switch to Bank 0 */
+	switch_bank(iobase, BANK0);
+	
+	tmp = inb(iobase+FIR_LCR_B);
+	tmp &=~0x20; // disable SIP
+	tmp |= 0x80; // these two steps make RX mode
+	tmp &= 0xbf;	
+	outb(tmp, iobase+FIR_LCR_B);
+		
+	/* Disable Interrupt */
+	outb(0x00, iobase+FIR_IER);
+	
+	
+	/* Switch to SIR space */
+	FIR2SIR(iobase);
+	
+	IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n", driver_name);
+	
+	/* Enable receive interrupts */ 
+	// outb(UART_IER_RDI, iobase+UART_IER); //benjamin 2000/11/23 01:25PM
+	// Turn on the interrupts in ali_ircc_net_open
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__);	
+	
+	return 0;
+}
+
+/*
+ * Function ali_ircc_read_dongle_id (int index, info)
+ *
+ * Try to read dongle indentification. This procedure needs to be executed
+ * once after power-on/reset. It also needs to be used whenever you suspect
+ * that the user may have plugged/unplugged the IrDA Dongle.
+ */
+static int ali_ircc_read_dongle_id (int i, chipio_t *info)
+{
+	int dongle_id, reg;
+	int cfg_base = info->cfg_base;
+	
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+		
+	/* Enter Configuration */
+	outb(chips[i].entr1, cfg_base);
+	outb(chips[i].entr2, cfg_base);
+	
+	/* Select Logical Device 5 Registers (UART2) */
+	outb(0x07, cfg_base);
+	outb(0x05, cfg_base+1);
+	
+	/* Read Dongle ID */
+	outb(0xf0, cfg_base);
+	reg = inb(cfg_base+1);	
+	dongle_id = ((reg>>6)&0x02) | ((reg>>5)&0x01);
+	IRDA_DEBUG(2, "%s(), probing dongle_id=%d, dongle_types=%s\n", __FUNCTION__, 
+		dongle_id, dongle_types[dongle_id]);
+	
+	/* Exit configuration */
+	outb(0xbb, cfg_base);
+			
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__);	
+	
+	return dongle_id;
+}
+
+/*
+ * Function ali_ircc_interrupt (irq, dev_id, regs)
+ *
+ *    An interrupt from the chip has arrived. Time to do some work
+ *
+ */
+static irqreturn_t ali_ircc_interrupt(int irq, void *dev_id,
+					struct pt_regs *regs)
+{
+	struct net_device *dev = (struct net_device *) dev_id;
+	struct ali_ircc_cb *self;
+	int ret;
+		
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+		
+ 	if (!dev) {
+		IRDA_WARNING("%s: irq %d for unknown device.\n", driver_name, irq);
+		return IRQ_NONE;
+	}	
+	
+	self = (struct ali_ircc_cb *) dev->priv;
+	
+	spin_lock(&self->lock);
+	
+	/* Dispatch interrupt handler for the current speed */
+	if (self->io.speed > 115200)
+		ret = ali_ircc_fir_interrupt(self);
+	else
+		ret = ali_ircc_sir_interrupt(self);
+		
+	spin_unlock(&self->lock);
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__);
+	return ret;
+}
+/*
+ * Function ali_ircc_fir_interrupt(irq, struct ali_ircc_cb *self)
+ *
+ *    Handle MIR/FIR interrupt
+ *
+ */
+static irqreturn_t ali_ircc_fir_interrupt(struct ali_ircc_cb *self)
+{
+	__u8 eir, OldMessageCount;
+	int iobase, tmp;
+	
+	IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+	
+	iobase = self->io.fir_base;
+	
+	switch_bank(iobase, BANK0);	
+	self->InterruptID = inb(iobase+FIR_IIR);		
+	self->BusStatus = inb(iobase+FIR_BSR);	
+	
+	OldMessageCount = (self->LineStatus + 1) & 0x07;
+	self->LineStatus = inb(iobase+FIR_LSR);	
+	//self->ier = inb(iobase+FIR_IER); 		2000/12/1 04:32PM
+	eir = self->InterruptID & self->ier; /* Mask out the interesting ones */ 
+	
+	IRDA_DEBUG(1, "%s(), self->InterruptID = %x\n", __FUNCTION__,self->InterruptID);
+	IRDA_DEBUG(1, "%s(), self->LineStatus = %x\n", __FUNCTION__,self->LineStatus);
+	IRDA_DEBUG(1, "%s(), self->ier = %x\n", __FUNCTION__,self->ier);
+	IRDA_DEBUG(1, "%s(), eir = %x\n", __FUNCTION__,eir);
+	
+	/* Disable interrupts */
+	 SetCOMInterrupts(self, FALSE);
+	
+	/* Tx or Rx Interrupt */
+	
+	if (eir & IIR_EOM) 
+	{		
+		if (self->io.direction == IO_XMIT) /* TX */
+		{
+			IRDA_DEBUG(1, "%s(), ******* IIR_EOM (Tx) *******\n", __FUNCTION__);
+			
+			if(ali_ircc_dma_xmit_complete(self))
+			{
+				if (irda_device_txqueue_empty(self->netdev)) 
+				{
+					/* Prepare for receive */
+					ali_ircc_dma_receive(self);					
+					self->ier = IER_EOM;									
+				}
+			}
+			else
+			{
+				self->ier = IER_EOM; 					
+			}
+									
+		}	
+		else /* RX */
+		{
+			IRDA_DEBUG(1, "%s(), ******* IIR_EOM (Rx) *******\n", __FUNCTION__);
+			
+			if(OldMessageCount > ((self->LineStatus+1) & 0x07))
+			{
+				self->rcvFramesOverflow = TRUE;	
+				IRDA_DEBUG(1, "%s(), ******* self->rcvFramesOverflow = TRUE ******** \n", __FUNCTION__);
+			}
+						
+			if (ali_ircc_dma_receive_complete(self))
+			{
+				IRDA_DEBUG(1, "%s(), ******* receive complete ******** \n", __FUNCTION__);
+				
+				self->ier = IER_EOM;				
+			}
+			else
+			{
+				IRDA_DEBUG(1, "%s(), ******* Not receive complete ******** \n", __FUNCTION__);
+				
+				self->ier = IER_EOM | IER_TIMER;								
+			}	
+		
+		}		
+	}
+	/* Timer Interrupt */
+	else if (eir & IIR_TIMER)
+	{	
+		if(OldMessageCount > ((self->LineStatus+1) & 0x07))
+		{
+			self->rcvFramesOverflow = TRUE;	
+			IRDA_DEBUG(1, "%s(), ******* self->rcvFramesOverflow = TRUE ******* \n", __FUNCTION__);
+		}
+		/* Disable Timer */
+		switch_bank(iobase, BANK1);
+		tmp = inb(iobase+FIR_CR);
+		outb( tmp& ~CR_TIMER_EN, iobase+FIR_CR);
+		
+		/* Check if this is a Tx timer interrupt */
+		if (self->io.direction == IO_XMIT)
+		{
+			ali_ircc_dma_xmit(self);
+			
+			/* Interrupt on EOM */
+			self->ier = IER_EOM;
+									
+		}
+		else /* Rx */
+		{
+			if(ali_ircc_dma_receive_complete(self)) 
+			{
+				self->ier = IER_EOM;
+			}
+			else
+			{
+				self->ier = IER_EOM | IER_TIMER;
+			}	
+		}		
+	}
+	
+	/* Restore Interrupt */	
+	SetCOMInterrupts(self, TRUE);	
+		
+	IRDA_DEBUG(1, "%s(), ----------------- End ---------------\n", __FUNCTION__);
+	return IRQ_RETVAL(eir);
+}
+
+/*
+ * Function ali_ircc_sir_interrupt (irq, self, eir)
+ *
+ *    Handle SIR interrupt
+ *
+ */
+static irqreturn_t ali_ircc_sir_interrupt(struct ali_ircc_cb *self)
+{
+	int iobase;
+	int iir, lsr;
+	
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+	
+	iobase = self->io.sir_base;
+
+	iir = inb(iobase+UART_IIR) & UART_IIR_ID;
+	if (iir) {	
+		/* Clear interrupt */
+		lsr = inb(iobase+UART_LSR);
+
+		IRDA_DEBUG(4, "%s(), iir=%02x, lsr=%02x, iobase=%#x\n", __FUNCTION__, 
+			   iir, lsr, iobase);
+
+		switch (iir) 
+		{
+			case UART_IIR_RLSI:
+				IRDA_DEBUG(2, "%s(), RLSI\n", __FUNCTION__);
+				break;
+			case UART_IIR_RDI:
+				/* Receive interrupt */
+				ali_ircc_sir_receive(self);
+				break;
+			case UART_IIR_THRI:
+				if (lsr & UART_LSR_THRE)
+				{
+					/* Transmitter ready for data */
+					ali_ircc_sir_write_wakeup(self);				
+				}				
+				break;
+			default:
+				IRDA_DEBUG(0, "%s(), unhandled IIR=%#x\n", __FUNCTION__, iir);
+				break;
+		} 
+		
+	}
+	
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__);	
+
+	return IRQ_RETVAL(iir);
+}
+
+
+/*
+ * Function ali_ircc_sir_receive (self)
+ *
+ *    Receive one frame from the infrared port
+ *
+ */
+static void ali_ircc_sir_receive(struct ali_ircc_cb *self) 
+{
+	int boguscount = 0;
+	int iobase;
+	
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
+	IRDA_ASSERT(self != NULL, return;);
+
+	iobase = self->io.sir_base;
+
+	/*  
+	 * Receive all characters in Rx FIFO, unwrap and unstuff them. 
+         * async_unwrap_char will deliver all found frames  
+	 */
+	do {
+		async_unwrap_char(self->netdev, &self->stats, &self->rx_buff, 
+				  inb(iobase+UART_RX));
+
+		/* Make sure we don't stay here too long */
+		if (boguscount++ > 32) {
+			IRDA_DEBUG(2,"%s(), breaking!\n", __FUNCTION__);
+			break;
+		}
+	} while (inb(iobase+UART_LSR) & UART_LSR_DR);	
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );	
+}
+
+/*
+ * Function ali_ircc_sir_write_wakeup (tty)
+ *
+ *    Called by the driver when there's room for more data.  If we have
+ *    more packets to send, we send them here.
+ *
+ */
+static void ali_ircc_sir_write_wakeup(struct ali_ircc_cb *self)
+{
+	int actual = 0;
+	int iobase;	
+
+	IRDA_ASSERT(self != NULL, return;);
+
+	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
+	
+	iobase = self->io.sir_base;
+
+	/* Finished with frame?  */
+	if (self->tx_buff.len > 0)  
+	{
+		/* Write data left in transmit buffer */
+		actual = ali_ircc_sir_write(iobase, self->io.fifo_size, 
+				      self->tx_buff.data, self->tx_buff.len);
+		self->tx_buff.data += actual;
+		self->tx_buff.len  -= actual;
+	} 
+	else 
+	{
+		if (self->new_speed) 
+		{
+			/* We must wait until all data are gone */
+			while(!(inb(iobase+UART_LSR) & UART_LSR_TEMT))
+				IRDA_DEBUG(1, "%s(), UART_LSR_THRE\n", __FUNCTION__ );
+			
+			IRDA_DEBUG(1, "%s(), Changing speed! self->new_speed = %d\n", __FUNCTION__ , self->new_speed);
+			ali_ircc_change_speed(self, self->new_speed);
+			self->new_speed = 0;			
+			
+			// benjamin 2000/11/10 06:32PM
+			if (self->io.speed > 115200)
+			{
+				IRDA_DEBUG(2, "%s(), ali_ircc_change_speed from UART_LSR_TEMT \n", __FUNCTION__ );				
+					
+				self->ier = IER_EOM;
+				// SetCOMInterrupts(self, TRUE);							
+				return;							
+			}
+		}
+		else
+		{
+			netif_wake_queue(self->netdev);	
+		}
+			
+		self->stats.tx_packets++;
+		
+		/* Turn on receive interrupts */
+		outb(UART_IER_RDI, iobase+UART_IER);
+	}
+		
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );	
+}
+
+static void ali_ircc_change_speed(struct ali_ircc_cb *self, __u32 baud)
+{
+	struct net_device *dev = self->netdev;
+	int iobase;
+	
+	IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
+	
+	IRDA_DEBUG(2, "%s(), setting speed = %d \n", __FUNCTION__ , baud);
+	
+	/* This function *must* be called with irq off and spin-lock.
+	 * - Jean II */
+
+	iobase = self->io.fir_base;
+	
+	SetCOMInterrupts(self, FALSE); // 2000/11/24 11:43AM
+	
+	/* Go to MIR, FIR Speed */
+	if (baud > 115200)
+	{
+		
+					
+		ali_ircc_fir_change_speed(self, baud);			
+		
+		/* Install FIR xmit handler*/
+		dev->hard_start_xmit = ali_ircc_fir_hard_xmit;		
+				
+		/* Enable Interuupt */
+		self->ier = IER_EOM; // benjamin 2000/11/20 07:24PM					
+				
+		/* Be ready for incomming frames */
+		ali_ircc_dma_receive(self);	// benajmin 2000/11/8 07:46PM not complete
+	}	
+	/* Go to SIR Speed */
+	else
+	{
+		ali_ircc_sir_change_speed(self, baud);
+				
+		/* Install SIR xmit handler*/
+		dev->hard_start_xmit = ali_ircc_sir_hard_xmit;
+	}
+	
+		
+	SetCOMInterrupts(self, TRUE);	// 2000/11/24 11:43AM
+		
+	netif_wake_queue(self->netdev);	
+	
+	IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );	
+}
+
+static void ali_ircc_fir_change_speed(struct ali_ircc_cb *priv, __u32 baud)
+{
+		
+	int iobase; 
+	struct ali_ircc_cb *self = (struct ali_ircc_cb *) priv;
+	struct net_device *dev;
+
+	IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
+		
+	IRDA_ASSERT(self != NULL, return;);
+
+	dev = self->netdev;
+	iobase = self->io.fir_base;
+	
+	IRDA_DEBUG(1, "%s(), self->io.speed = %d, change to speed = %d\n", __FUNCTION__ ,self->io.speed,baud);
+	
+	/* Come from SIR speed */
+	if(self->io.speed <=115200)
+	{
+		SIR2FIR(iobase);
+	}
+		
+	/* Update accounting for new speed */
+	self->io.speed = baud;
+		
+	// Set Dongle Speed mode
+	ali_ircc_change_dongle_speed(self, baud);
+		
+	IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__ );	
+}
+
+/*
+ * Function ali_sir_change_speed (self, speed)
+ *
+ *    Set speed of IrDA port to specified baudrate
+ *
+ */
+static void ali_ircc_sir_change_speed(struct ali_ircc_cb *priv, __u32 speed)
+{
+	struct ali_ircc_cb *self = (struct ali_ircc_cb *) priv;
+	unsigned long flags;
+	int iobase; 
+	int fcr;    /* FIFO control reg */
+	int lcr;    /* Line control reg */
+	int divisor;
+
+	IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
+	
+	IRDA_DEBUG(1, "%s(), Setting speed to: %d\n", __FUNCTION__ , speed);
+
+	IRDA_ASSERT(self != NULL, return;);
+
+	iobase = self->io.sir_base;
+	
+	/* Come from MIR or FIR speed */
+	if(self->io.speed >115200)
+	{	
+		// Set Dongle Speed mode first
+		ali_ircc_change_dongle_speed(self, speed);
+			
+		FIR2SIR(iobase);
+	}
+		
+	// Clear Line and Auxiluary status registers 2000/11/24 11:47AM
+		
+	inb(iobase+UART_LSR);
+	inb(iobase+UART_SCR);
+		
+	/* Update accounting for new speed */
+	self->io.speed = speed;
+
+	spin_lock_irqsave(&self->lock, flags);
+
+	divisor = 115200/speed;
+	
+	fcr = UART_FCR_ENABLE_FIFO;
+
+	/* 
+	 * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and
+	 * almost 1,7 ms at 19200 bps. At speeds above that we can just forget
+	 * about this timeout since it will always be fast enough. 
+	 */
+	if (self->io.speed < 38400)
+		fcr |= UART_FCR_TRIGGER_1;
+	else 
+		fcr |= UART_FCR_TRIGGER_14;
+        
+	/* IrDA ports use 8N1 */
+	lcr = UART_LCR_WLEN8;
+	
+	outb(UART_LCR_DLAB | lcr, iobase+UART_LCR); /* Set DLAB */
+	outb(divisor & 0xff,      iobase+UART_DLL); /* Set speed */
+	outb(divisor >> 8,	  iobase+UART_DLM);
+	outb(lcr,		  iobase+UART_LCR); /* Set 8N1	*/
+	outb(fcr,		  iobase+UART_FCR); /* Enable FIFO's */
+
+	/* without this, the conection will be broken after come back from FIR speed,
+	   but with this, the SIR connection is harder to established */
+	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase+UART_MCR);
+	
+	spin_unlock_irqrestore(&self->lock, flags);
+	
+	IRDA_DEBUG(1, "%s(), ----------------- End ------------------\n", __FUNCTION__ );	
+}
+
+static void ali_ircc_change_dongle_speed(struct ali_ircc_cb *priv, int speed)
+{
+	
+	struct ali_ircc_cb *self = (struct ali_ircc_cb *) priv;
+	int iobase,dongle_id;
+	int tmp = 0;
+			
+	IRDA_DEBUG(1, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );	
+	
+	iobase = self->io.fir_base; 	/* or iobase = self->io.sir_base; */
+	dongle_id = self->io.dongle_id;
+	
+	/* We are already locked, no need to do it again */
+		
+	IRDA_DEBUG(1, "%s(), Set Speed for %s , Speed = %d\n", __FUNCTION__ , dongle_types[dongle_id], speed);		
+	
+	switch_bank(iobase, BANK2);
+	tmp = inb(iobase+FIR_IRDA_CR);
+		
+	/* IBM type dongle */
+	if(dongle_id == 0)
+	{				
+		if(speed == 4000000)
+		{
+			//	      __ __	
+			// SD/MODE __|     |__ __
+			//               __ __ 
+			// IRTX    __ __|     |__
+			//         T1 T2 T3 T4 T5
+			
+			tmp &=  ~IRDA_CR_HDLC;		// HDLC=0
+			tmp |= IRDA_CR_CRC;	   	// CRC=1
+			
+			switch_bank(iobase, BANK2);
+			outb(tmp, iobase+FIR_IRDA_CR);
+			
+      			// T1 -> SD/MODE:0 IRTX:0
+      			tmp &= ~0x09;
+      			tmp |= 0x02;
+      			outb(tmp, iobase+FIR_IRDA_CR);
+      			udelay(2);
+      			
+      			// T2 -> SD/MODE:1 IRTX:0
+      			tmp &= ~0x01;
+      			tmp |= 0x0a;
+      			outb(tmp, iobase+FIR_IRDA_CR);
+      			udelay(2);
+      			
+      			// T3 -> SD/MODE:1 IRTX:1
+      			tmp |= 0x0b;
+      			outb(tmp, iobase+FIR_IRDA_CR);
+      			udelay(2);
+      			
+      			// T4 -> SD/MODE:0 IRTX:1
+      			tmp &= ~0x08;
+      			tmp |= 0x03;
+      			outb(tmp, iobase+FIR_IRDA_CR);
+      			udelay(2);
+      			
+      			// T5 -> SD/MODE:0 IRTX:0
+      			tmp &= ~0x09;
+      			tmp |= 0x02;