Merge ../linus

4 files changed, 898 insertions, 36 deletions

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 6e2ec56..96bdb73 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -1,7 +1,7 @@
 /*****************************************************************************
  *
  * Filename:      irda-usb.c
- * Version:       0.9b
+ * Version:       0.10
  * Description:   IrDA-USB Driver
  * Status:        Experimental 
  * Author:        Dag Brattli <dag@brattli.net>
@@ -9,6 +9,9 @@
  *	Copyright (C) 2000, Roman Weissgaerber <weissg@vienna.at>
  *      Copyright (C) 2001, Dag Brattli <dag@brattli.net>
  *      Copyright (C) 2001, Jean Tourrilhes <jt@hpl.hp.com>
+ *      Copyright (C) 2004, SigmaTel, Inc. <irquality@sigmatel.com>
+ *      Copyright (C) 2005, Milan Beno <beno@pobox.sk>
+ *      Copyright (C) 2006, Nick Fedchik <nick@fedchik.org.ua>
  *          
  *	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
@@ -61,6 +64,7 @@
 #include <linux/slab.h>
 #include <linux/rtnetlink.h>
 #include <linux/usb.h>
+#include <linux/firmware.h>
 
 #include "irda-usb.h"
 
@@ -78,8 +82,12 @@ static struct usb_device_id dongles[] = {
 	{ USB_DEVICE(0x50f, 0x180), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
 	/* Extended Systems, Inc.,  XTNDAccess IrDA USB (ESI-9685) */
 	{ USB_DEVICE(0x8e9, 0x100), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
+	/* SigmaTel STIR4210/4220/4116 USB IrDA (VFIR) Bridge */
+	{ USB_DEVICE(0x66f, 0x4210), .driver_info = IUC_STIR_4210 | IUC_SPEED_BUG },
+	{ USB_DEVICE(0x66f, 0x4220), .driver_info = IUC_STIR_4210 | IUC_SPEED_BUG },
+	{ USB_DEVICE(0x66f, 0x4116), .driver_info = IUC_STIR_4210 | IUC_SPEED_BUG },
 	{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
-	               USB_DEVICE_ID_MATCH_INT_SUBCLASS,
+	  USB_DEVICE_ID_MATCH_INT_SUBCLASS,
 	  .bInterfaceClass = USB_CLASS_APP_SPEC,
 	  .bInterfaceSubClass = USB_CLASS_IRDA,
 	  .driver_info = IUC_DEFAULT, },
@@ -99,6 +107,7 @@ MODULE_DEVICE_TABLE(usb, dongles);
 
 /*------------------------------------------------------------------*/
 
+static void irda_usb_init_qos(struct irda_usb_cb *self) ;
 static struct irda_class_desc *irda_usb_find_class_desc(struct usb_interface *intf);
 static void irda_usb_disconnect(struct usb_interface *intf);
 static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self);
@@ -141,7 +150,24 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
 				  __u8 *header,
 				  int	force)
 {
-	/* Set the negotiated link speed */
+	/* Here we check if we have an STIR421x chip,
+	 * and if either speed or xbofs (or both) needs
+	 * to be changed.
+	 */
+	if (self->capability & IUC_STIR_4210 &&
+	    ((self->new_speed != -1) || (self->new_xbofs != -1))) {
+
+		/* With STIR421x, speed and xBOFs must be set at the same
+		 * time, even if only one of them changes.
+		 */
+		if (self->new_speed == -1)
+			self->new_speed = self->speed ;
+
+		if (self->new_xbofs == -1)
+			self->new_xbofs = self->xbofs ;
+	}
+
+	/* Set the link speed */
 	if (self->new_speed != -1) {
 		/* Hum... Ugly hack :-(
 		 * Some device are not compliant with the spec and change
@@ -191,7 +217,11 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
 		        *header = SPEED_4000000;
 			self->new_xbofs = 0;
 			break;
-		}
+		case 16000000:
+			*header = SPEED_16000000;
+  			self->new_xbofs = 0;
+  			break;
+  		}
 	} else
 		/* No change */
 		*header = 0;
@@ -235,6 +265,32 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
 	}
 }
 
+/*
+*   calculate turnaround time for SigmaTel header
+*/
+static __u8 get_turnaround_time(struct sk_buff *skb)
+{
+	int turnaround_time = irda_get_mtt(skb);
+
+	if ( turnaround_time == 0 )
+		return 0;
+	else if ( turnaround_time <= 10 )
+		return 1;
+	else if ( turnaround_time <= 50 )
+		return 2;
+	else if ( turnaround_time <= 100 )
+		return 3;
+	else if ( turnaround_time <= 500 )
+		return 4;
+	else if ( turnaround_time <= 1000 )
+		return 5;
+	else if ( turnaround_time <= 5000 )
+		return 6;
+	else
+		return 7;
+}
+
+
 /*------------------------------------------------------------------*/
 /*
  * Send a command to change the speed of the dongle
@@ -262,12 +318,18 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
 	/* Set the new speed and xbofs in this fake frame */
 	irda_usb_build_header(self, frame, 1);
 
+	if ( self->capability & IUC_STIR_4210 ) {
+		if (frame[0] == 0) return ; // do nothing if no change
+		frame[1] = 0; // other parameters don't change here
+		frame[2] = 0;
+	}
+
 	/* Submit the 0 length IrDA frame to trigger new speed settings */
         usb_fill_bulk_urb(urb, self->usbdev,
 		      usb_sndbulkpipe(self->usbdev, self->bulk_out_ep),
                       frame, IRDA_USB_SPEED_MTU,
                       speed_bulk_callback, self);
-	urb->transfer_buffer_length = USB_IRDA_HEADER;
+	urb->transfer_buffer_length = self->header_length;
 	urb->transfer_flags = 0;
 
 	/* Irq disabled -> GFP_ATOMIC */
@@ -383,16 +445,35 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
 	 * allocation will be done lower in skb_push().
 	 * Also, we don't use directly skb_cow(), because it require
 	 * headroom >= 16, which force unnecessary copies - Jean II */
-	if (skb_headroom(skb) < USB_IRDA_HEADER) {
+	if (skb_headroom(skb) < self->header_length) {
 		IRDA_DEBUG(0, "%s(), Insuficient skb headroom.\n", __FUNCTION__);
-		if (skb_cow(skb, USB_IRDA_HEADER)) {
+		if (skb_cow(skb, self->header_length)) {
 			IRDA_WARNING("%s(), failed skb_cow() !!!\n", __FUNCTION__);
 			goto drop;
 		}
 	}
 
 	/* Change setting for next frame */
-	irda_usb_build_header(self, skb_push(skb, USB_IRDA_HEADER), 0);
+
+	if ( self->capability & IUC_STIR_4210 ) {
+		__u8 turnaround_time;
+		__u8* frame;
+		turnaround_time = get_turnaround_time( skb );
+		frame= skb_push(skb, self->header_length);
+		irda_usb_build_header(self, frame, 0);
+		frame[2] = turnaround_time;
+		if ((skb->len != 0) &&
+		    ((skb->len % 128) == 0) &&
+		    ((skb->len % 512) != 0)) {
+			/* add extra byte for special SigmaTel feature */
+			frame[1] = 1;
+			skb_put(skb, 1);
+		} else {
+			frame[1] = 0;
+		}
+	} else {
+		irda_usb_build_header(self, skb_push(skb, self->header_length), 0);
+	}
 
 	/* FIXME: Make macro out of this one */
 	((struct irda_skb_cb *)skb->cb)->context = self;
@@ -795,7 +876,7 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
 	}
 	
 	/* Check for empty frames */
-	if (urb->actual_length <= USB_IRDA_HEADER) {
+	if (urb->actual_length <= self->header_length) {
 		IRDA_WARNING("%s(), empty frame!\n", __FUNCTION__);
 		goto done;
 	}
@@ -816,7 +897,11 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
 	docopy = (urb->actual_length < IRDA_RX_COPY_THRESHOLD);
 
 	/* Allocate a new skb */
-	newskb = dev_alloc_skb(docopy ? urb->actual_length : IRDA_SKB_MAX_MTU);
+	if ( self->capability & IUC_STIR_4210 )
+		newskb = dev_alloc_skb(docopy ? urb->actual_length : IRDA_SKB_MAX_MTU + USB_IRDA_SIGMATEL_HEADER);
+	else
+		newskb = dev_alloc_skb(docopy ? urb->actual_length : IRDA_SKB_MAX_MTU);
+
 	if (!newskb)  {
 		self->stats.rx_dropped++;
 		/* We could deliver the current skb, but this would stall
@@ -845,7 +930,7 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
 
 	/* Set proper length on skb & remove USB-IrDA header */
 	skb_put(dataskb, urb->actual_length);
-	skb_pull(dataskb, USB_IRDA_HEADER);
+	skb_pull(dataskb, self->header_length);
 
 	/* Ask the networking layer to queue the packet for the IrDA stack */
 	dataskb->dev = self->netdev;
@@ -937,6 +1022,191 @@ static int irda_usb_is_receiving(struct irda_usb_cb *self)
 	return 0; /* For now */
 }
 
+
+#define STIR421X_PATCH_PRODUCT_VERSION_STR       "Product Version: "
+#define STIR421X_PATCH_COMPONENT_VERSION_STR     "Component Version: "
+#define STIR421X_PATCH_DATA_TAG_STR              "STMP"
+#define STIR421X_PATCH_FILE_VERSION_MAX_OFFSET   512     /* version info is before here */
+#define STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET     512     /* patch image starts before here */
+#define STIR421X_PATCH_FILE_END_OF_HEADER_TAG    0x1A    /* marks end of patch file header (PC DOS text file EOF character) */
+
+/*
+ * Known firmware patches for STIR421x dongles
+ */
+static char * stir421x_patches[] = {
+	"42101001.sb",
+	"42101002.sb",
+};
+
+static int stir421x_get_patch_version(unsigned char * patch, const unsigned long patch_len)
+{
+	unsigned int version_offset;
+	unsigned long version_major, version_minor, version_build;
+	unsigned char * version_start;
+	int version_found = 0;
+
+	for (version_offset = 0;
+	     version_offset < STIR421X_PATCH_FILE_END_OF_HEADER_TAG;
+	     version_offset++) {
+		if (!memcmp(patch + version_offset,
+			    STIR421X_PATCH_PRODUCT_VERSION_STR,
+			    sizeof(STIR421X_PATCH_PRODUCT_VERSION_STR) - 1)) {
+				    version_found = 1;
+				    version_start = patch +
+					    version_offset +
+					    sizeof(STIR421X_PATCH_PRODUCT_VERSION_STR) - 1;
+				    break;
+		}
+	}
+
+	/* We couldn't find a product version on this patch */
+	if (!version_found)
+		return -EINVAL;
+
+	/* Let's check if the product version is dotted */
+	if (version_start[3] != '.' ||
+	    version_start[7] != '.')
+		return -EINVAL;
+
+	version_major = simple_strtoul(version_start, NULL, 10);
+	version_minor = simple_strtoul(version_start + 4, NULL, 10);
+	version_build = simple_strtoul(version_start + 8, NULL, 10);
+
+	IRDA_DEBUG(2, "%s(), Major: %ld Minor: %ld Build: %ld\n",
+		   __FUNCTION__,
+		   version_major, version_minor, version_build);
+
+	return (((version_major) << 12) +
+		((version_minor) << 8) +
+		((version_build / 10) << 4) +
+		(version_build % 10));
+
+}
+
+
+static int stir421x_upload_patch (struct irda_usb_cb *self,
+				  unsigned char * patch,
+				  const unsigned int patch_len)
+{
+    int retval = 0;
+    int actual_len;
+    unsigned int i = 0, download_amount = 0;
+    unsigned char * patch_chunk;
+
+    IRDA_DEBUG (2, "%s(), Uploading STIR421x Patch\n", __FUNCTION__);
+
+    patch_chunk = kzalloc(STIR421X_MAX_PATCH_DOWNLOAD_SIZE, GFP_KERNEL);
+    if (patch_chunk == NULL)
+	    return -ENOMEM;
+
+    /* break up patch into 1023-byte sections */
+    for (i = 0; retval >= 0 && i < patch_len; i += download_amount) {
+	    download_amount = patch_len - i;
+	    if (download_amount > STIR421X_MAX_PATCH_DOWNLOAD_SIZE)
+		    download_amount = STIR421X_MAX_PATCH_DOWNLOAD_SIZE;
+
+	    /* download the patch section */
+	    memcpy(patch_chunk, patch + i, download_amount);
+
+	    retval = usb_bulk_msg (self->usbdev,
+				   usb_sndbulkpipe (self->usbdev,
+						    self->bulk_out_ep),
+				   patch_chunk, download_amount,
+				   &actual_len, msecs_to_jiffies (500));
+	    IRDA_DEBUG (2, "%s(), Sent %u bytes\n", __FUNCTION__,
+			actual_len);
+	    if (retval == 0)
+		    mdelay(10);
+    }
+
+    kfree(patch_chunk);
+
+    if (i != patch_len) {
+	    IRDA_ERROR ("%s(), Pushed %d bytes (!= patch_len (%d))\n",
+		       __FUNCTION__, i, patch_len);
+	    retval = -EIO;
+    }
+
+    if (retval < 0)
+	    /* todo - mark device as not ready */
+	    IRDA_ERROR ("%s(), STIR421x patch upload failed (%d)\n",
+			__FUNCTION__, retval);
+
+    return retval;
+}
+
+
+static int stir421x_patch_device(struct irda_usb_cb *self)
+{
+	unsigned int i, patch_found = 0, data_found = 0, data_offset;
+	int patch_version, ret = 0;
+	const struct firmware *fw_entry;
+
+	for (i = 0; i < ARRAY_SIZE(stir421x_patches); i++) {
+		if(request_firmware(&fw_entry, stir421x_patches[i], &self->usbdev->dev) != 0) {
+			IRDA_ERROR( "%s(), Patch %s is not available\n", __FUNCTION__, stir421x_patches[i]);
+			continue;
+		}
+
+                /* We found a patch from userspace */
+		patch_version = stir421x_get_patch_version (fw_entry->data, fw_entry->size);
+
+		if (patch_version < 0) {
+			/* Couldn't fetch a version, let's move on to the next file */
+			IRDA_ERROR("%s(), version parsing failed\n", __FUNCTION__);
+			ret = patch_version;
+			release_firmware(fw_entry);
+			continue;
+		}
+
+		if (patch_version != self->usbdev->descriptor.bcdDevice) {
+			/* Patch version and device don't match */
+			IRDA_ERROR ("%s(), wrong patch version (%d <-> %d)\n",
+				    __FUNCTION__,
+				    patch_version, self->usbdev->descriptor.bcdDevice);
+			ret = -EINVAL;
+			release_firmware(fw_entry);
+			continue;
+		}
+
+		/* If we're here, we've found a correct patch */
+		patch_found = 1;
+		break;
+
+	}
+
+	/* We couldn't find a valid firmware, let's leave */
+	if (!patch_found)
+		return ret;
+
+	/* The actual image starts after the "STMP" keyword */
+	for (data_offset = 0; data_offset < STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET; data_offset++) {
+		if (!memcmp(fw_entry->data + data_offset,
+			    STIR421X_PATCH_DATA_TAG_STR,
+			    sizeof(STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET))) {
+			IRDA_DEBUG(2, "%s(), found patch data for STIR421x at offset %d\n",
+				   __FUNCTION__, data_offset);
+			data_found = 1;
+			break;
+		}
+	}
+
+	/* We couldn't find "STMP" from the header */
+	if (!data_found)
+		return -EINVAL;
+
+	/* Let's upload the patch to the target */
+	ret = stir421x_upload_patch(self,
+				    &fw_entry->data[data_offset + sizeof(STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET)],
+				    fw_entry->size - (data_offset + sizeof(STIR421X_PATCH_FILE_IMAGE_MAX_OFFSET)));
+
+	release_firmware(fw_entry);
+
+	return ret;
+
+}
+
+
 /********************** IRDA DEVICE CALLBACKS **********************/
 /*
  * Main calls from the IrDA/Network subsystem.
@@ -972,6 +1242,11 @@ static int irda_usb_net_open(struct net_device *netdev)
 		return -1;
 	}
 
+	if(self->needspatch) {
+		IRDA_WARNING("%s(), device needs patch\n", __FUNCTION__) ;
+		return -EIO ;
+	}
+
 	/* Initialise default speed and xbofs value
 	 * (IrLAP will change that soon) */
 	self->speed = -1;
@@ -1050,7 +1325,7 @@ static int irda_usb_net_close(struct net_device *netdev)
 	del_timer(&self->rx_defer_timer);
 
 	/* Deallocate all the Rx path buffers (URBs and skb) */
-	for (i = 0; i < IU_MAX_RX_URBS; i++) {
+	for (i = 0; i < self->max_rx_urb; i++) {
 		struct urb *urb = self->rx_urb[i];
 		struct sk_buff *skb = (struct sk_buff *) urb->context;
 		/* Cancel the receive command */
@@ -1426,8 +1701,22 @@ static int irda_usb_probe(struct usb_interface *intf,
 	spin_lock_init(&self->lock);
 	init_timer(&self->rx_defer_timer);
 
+	self->capability = id->driver_info;
+	self->needspatch = ((self->capability & IUC_STIR_4210) != 0) ;
+
 	/* Create all of the needed urbs */
-	for (i = 0; i < IU_MAX_RX_URBS; i++) {
+	if (self->capability & IUC_STIR_4210) {
+		self->max_rx_urb = IU_SIGMATEL_MAX_RX_URBS;
+		self->header_length = USB_IRDA_SIGMATEL_HEADER;
+	} else {
+		self->max_rx_urb = IU_MAX_RX_URBS;
+		self->header_length = USB_IRDA_HEADER;
+	}
+
+	self->rx_urb = kzalloc(self->max_rx_urb * sizeof(struct urb *),
+				GFP_KERNEL);
+
+	for (i = 0; i < self->max_rx_urb; i++) {
 		self->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
 		if (!self->rx_urb[i]) {
 			goto err_out_1;
@@ -1479,17 +1768,28 @@ static int irda_usb_probe(struct usb_interface *intf,
 		goto err_out_3;
 	}
 
+	self->usbdev = dev;
+
 	/* Find IrDA class descriptor */
 	irda_desc = irda_usb_find_class_desc(intf);
 	ret = -ENODEV;
 	if (irda_desc == NULL)
 		goto err_out_3;
 
+	if (self->needspatch) {
+		ret = usb_control_msg (self->usbdev, usb_sndctrlpipe (self->usbdev, 0),
+				       0x02, 0x40, 0, 0, 0, 0, msecs_to_jiffies(500));
+		if (ret < 0) {
+			IRDA_DEBUG (0, "usb_control_msg failed %d\n", ret);
+			goto err_out_3;
+		} else {
+			mdelay(10);
+		}
+	}
+
 	self->irda_desc =  irda_desc;
 	self->present = 1;
 	self->netopen = 0;
-	self->capability = id->driver_info;
-	self->usbdev = dev;
 	self->usbintf = intf;
 
 	/* Allocate the buffer for speed changes */
@@ -1508,8 +1808,32 @@ static int irda_usb_probe(struct usb_interface *intf,
 
 	IRDA_MESSAGE("IrDA: Registered device %s\n", net->name);
 	usb_set_intfdata(intf, self);
+
+	if (self->needspatch) {
+		/* Now we fetch and upload the firmware patch */
+		ret = stir421x_patch_device(self);
+		self->needspatch = (ret < 0);
+		if (ret < 0) {
+			printk("patch_device failed\n");
+			goto err_out_5;
+		}
+
+		/* replace IrDA class descriptor with what patched device is now reporting */
+		irda_desc = irda_usb_find_class_desc (self->usbintf);
+		if (irda_desc == NULL) {
+			ret = -ENODEV;
+			goto err_out_5;
+		}
+		if (self->irda_desc)
+			kfree (self->irda_desc);
+		self->irda_desc = irda_desc;
+		irda_usb_init_qos(self);
+	}
+
 	return 0;
 
+err_out_5:
+	unregister_netdev(self->netdev);
 err_out_4:
 	kfree(self->speed_buff);
 err_out_3:
@@ -1518,7 +1842,7 @@ err_out_3:
 err_out_2:
 	usb_free_urb(self->tx_urb);
 err_out_1:
-	for (i = 0; i < IU_MAX_RX_URBS; i++) {
+	for (i = 0; i < self->max_rx_urb; i++) {
 		if (self->rx_urb[i])
 			usb_free_urb(self->rx_urb[i]);
 	}
@@ -1571,7 +1895,7 @@ static void irda_usb_disconnect(struct usb_interface *intf)
 		/*netif_device_detach(self->netdev);*/
 		netif_stop_queue(self->netdev);
 		/* Stop all the receive URBs. Must be synchronous. */
-		for (i = 0; i < IU_MAX_RX_URBS; i++)
+		for (i = 0; i < self->max_rx_urb; i++)
 			usb_kill_urb(self->rx_urb[i]);
 		/* Cancel Tx and speed URB.
 		 * Make sure it's synchronous to avoid races. */
@@ -1586,8 +1910,9 @@ static void irda_usb_disconnect(struct usb_interface *intf)
 	self->usbintf = NULL;
 
 	/* Clean up our urbs */
-	for (i = 0; i < IU_MAX_RX_URBS; i++)
+	for (i = 0; i < self->max_rx_urb; i++)
 		usb_free_urb(self->rx_urb[i]);
+	kfree(self->rx_urb);
 	/* Clean up Tx and speed URB */
 	usb_free_urb(self->tx_urb);
 	usb_free_urb(self->speed_urb);
@@ -1648,6 +1973,6 @@ module_exit(usb_irda_cleanup);
  */
 module_param(qos_mtt_bits, int, 0);
 MODULE_PARM_DESC(qos_mtt_bits, "Minimum Turn Time");
-MODULE_AUTHOR("Roman Weissgaerber <weissg@vienna.at>, Dag Brattli <dag@brattli.net> and Jean Tourrilhes <jt@hpl.hp.com>");
-MODULE_DESCRIPTION("IrDA-USB Dongle Driver"); 
+MODULE_AUTHOR("Roman Weissgaerber <weissg@vienna.at>, Dag Brattli <dag@brattli.net>, Jean Tourrilhes <jt@hpl.hp.com> and Nick Fedchik <nick@fedchik.org.ua>");
+MODULE_DESCRIPTION("IrDA-USB Dongle Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/net/irda/irda-usb.h b/drivers/net/irda/irda-usb.h
index 4026af4..d833db5 100644
--- a/drivers/net/irda/irda-usb.h
+++ b/drivers/net/irda/irda-usb.h
@@ -1,7 +1,7 @@
 /*****************************************************************************
  *
  * Filename:      irda-usb.h
- * Version:       0.9b
+ * Version:       0.10
  * Description:   IrDA-USB Driver
  * Status:        Experimental 
  * Author:        Dag Brattli <dag@brattli.net>
@@ -9,6 +9,9 @@
  *	Copyright (C) 2001, Roman Weissgaerber <weissg@vienna.at>
  *      Copyright (C) 2000, Dag Brattli <dag@brattli.net>
  *      Copyright (C) 2001, Jean Tourrilhes <jt@hpl.hp.com>
+ *      Copyright (C) 2004, SigmaTel, Inc. <irquality@sigmatel.com>
+ *      Copyright (C) 2005, Milan Beno <beno@pobox.sk>
+ *      Copyright (C) 2006, Nick FEdchik <nick@fedchik.org.ua>
  *          
  *	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
@@ -31,6 +34,9 @@
 #include <net/irda/irda.h>
 #include <net/irda/irda_device.h>      /* struct irlap_cb */
 
+#define PATCH_FILE_SIZE_MAX     65536
+#define PATCH_FILE_SIZE_MIN     80
+
 #define RX_COPY_THRESHOLD 200
 #define IRDA_USB_MAX_MTU 2051
 #define IRDA_USB_SPEED_MTU 64		/* Weird, but work like this */
@@ -79,15 +85,16 @@
 /* Inbound header */
 #define MEDIA_BUSY    0x80
 
-#define SPEED_2400    0x01
-#define SPEED_9600    0x02
-#define SPEED_19200   0x03
-#define SPEED_38400   0x04
-#define SPEED_57600   0x05
-#define SPEED_115200  0x06
-#define SPEED_576000  0x07
-#define SPEED_1152000 0x08
-#define SPEED_4000000 0x09
+#define SPEED_2400     0x01
+#define SPEED_9600     0x02
+#define SPEED_19200    0x03
+#define SPEED_38400    0x04
+#define SPEED_57600    0x05
+#define SPEED_115200   0x06
+#define SPEED_576000   0x07
+#define SPEED_1152000  0x08
+#define SPEED_4000000  0x09
+#define SPEED_16000000 0x0a
 
 /* Basic capabilities */
 #define IUC_DEFAULT	0x00	/* Basic device compliant with 1.0 spec */
@@ -100,11 +107,14 @@
 #define IUC_SMALL_PKT	0x10	/* Device doesn't behave with big Rx packets */
 #define IUC_MAX_WINDOW	0x20	/* Device underestimate the Rx window */
 #define IUC_MAX_XBOFS	0x40	/* Device need more xbofs than advertised */
+#define IUC_STIR_4210	0x80	/* SigmaTel 4210/4220/4116 VFIR */
 
 /* USB class definitions */
-#define USB_IRDA_HEADER   0x01
-#define USB_CLASS_IRDA    0x02 /* USB_CLASS_APP_SPEC subclass */ 
-#define USB_DT_IRDA       0x21
+#define USB_IRDA_HEADER            0x01
+#define USB_CLASS_IRDA             0x02 /* USB_CLASS_APP_SPEC subclass */
+#define USB_DT_IRDA                0x21
+#define USB_IRDA_SIGMATEL_HEADER   0x03
+#define IU_SIGMATEL_MAX_RX_URBS    (IU_MAX_ACTIVE_RX_URBS + USB_IRDA_SIGMATEL_HEADER)
 
 struct irda_class_desc {
 	__u8  bLength;
@@ -123,6 +133,7 @@ struct irda_class_desc {
  * (6.2.5, USB-IrDA class spec 1.0) */
 
 #define IU_REQ_GET_CLASS_DESC	0x06
+#define STIR421X_MAX_PATCH_DOWNLOAD_SIZE 1023
 
 struct irda_usb_cb {
 	struct irda_class_desc *irda_desc;
@@ -136,7 +147,8 @@ struct irda_usb_cb {
 	__u16 bulk_out_mtu;		/* Max Tx packet size in bytes */
 	__u8  bulk_int_ep;		/* Interrupt Endpoint assignments */
 
-	struct urb *rx_urb[IU_MAX_RX_URBS];	/* URBs used to receive data frames */
+	__u8  max_rx_urb;
+	struct urb **rx_urb;	        /* URBs used to receive data frames */
 	struct urb *idle_rx_urb;	/* Pointer to idle URB in Rx path */
 	struct urb *tx_urb;		/* URB used to send data frames */
 	struct urb *speed_urb;		/* URB used to send speed commands */
@@ -157,6 +169,9 @@ struct irda_usb_cb {
 	__u32 speed;			/* Current speed */
 	__s32 new_speed;		/* speed we need to set */
 
+	__u8 header_length;             /* USB-IrDA frame header size */
+	int needspatch;        		/* device needs firmware patch */
+
 	struct timer_list rx_defer_timer;	/* Wait for Rx error to clear */
 };
 
diff --git a/drivers/net/irda/sa1100_ir.c b/drivers/net/irda/sa1100_ir.c
index 63d38fb..f530686 100644
--- a/drivers/net/irda/sa1100_ir.c
+++ b/drivers/net/irda/sa1100_ir.c
@@ -695,8 +695,7 @@ static int sa1100_irda_hard_xmit(struct sk_buff *skb, struct net_device *dev)
 		/*
 		 * We must not be transmitting...
 		 */
-		if (si->txskb)
-			BUG();
+		BUG_ON(si->txskb);
 
 		netif_stop_queue(dev);
 
diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index ec94ecd..58f76ce 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -11,6 +11,7 @@
  *     Copyright (c) 2002      Daniele Peri
  *     All Rights Reserved.
  *     Copyright (c) 2002      Jean Tourrilhes
+ *     Copyright (c) 2006      Linus Walleij
  *
  *
  * Based on smc-ircc.c:
@@ -61,6 +62,9 @@
 
 #include <linux/spinlock.h>
 #include <linux/pm.h>
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+#endif
 
 #include <net/irda/wrapper.h>
 #include <net/irda/irda.h>
@@ -100,6 +104,22 @@ MODULE_PARM_DESC(ircc_transceiver, "Transceiver type");
 
 /* Types */
 
+#ifdef CONFIG_PCI
+struct smsc_ircc_subsystem_configuration {
+	unsigned short vendor; /* PCI vendor ID */
+	unsigned short device; /* PCI vendor ID */
+	unsigned short subvendor; /* PCI subsystem vendor ID */
+	unsigned short subdevice; /* PCI sybsystem device ID */
+	unsigned short sir_io; /* I/O port for SIR */
+	unsigned short fir_io; /* I/O port for FIR */
+	unsigned char  fir_irq; /* FIR IRQ */
+	unsigned char  fir_dma; /* FIR DMA */
+	unsigned short cfg_base; /* I/O port for chip configuration */
+	int (*preconfigure)(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf); /* Preconfig function */
+	const char *name;	/* name shown as info */
+};
+#endif
+
 struct smsc_transceiver {
 	char *name;
 	void (*set_for_speed)(int fir_base, u32 speed);
@@ -202,6 +222,18 @@ static int __init smsc_superio_flat(const struct smsc_chip *chips, unsigned shor
 static int __init smsc_superio_paged(const struct smsc_chip *chips, unsigned short cfg_base, char *type);
 static int __init smsc_superio_fdc(unsigned short cfg_base);
 static int __init smsc_superio_lpc(unsigned short cfg_base);
+#ifdef CONFIG_PCI
+static int __init preconfigure_smsc_chip(struct smsc_ircc_subsystem_configuration *conf);
+static int __init preconfigure_through_82801(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
+static void __init preconfigure_ali_port(struct pci_dev *dev,
+					 unsigned short port);
+static int __init preconfigure_through_ali(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
+static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
+						    unsigned short ircc_fir,
+						    unsigned short ircc_sir,
+						    unsigned char ircc_dma,
+						    unsigned char ircc_irq);
+#endif
 
 /* Transceivers specific functions */
 
@@ -353,6 +385,13 @@ static int __init smsc_ircc_init(void)
 		return ret;
 	}
 
+#ifdef CONFIG_PCI
+	if (smsc_ircc_preconfigure_subsystems(ircc_cfg, ircc_fir, ircc_sir, ircc_dma, ircc_irq) < 0) {
+		/* Ignore errors from preconfiguration */
+		IRDA_ERROR("%s, Preconfiguration failed !\n", driver_name);
+	}
+#endif
+
 	dev_count = 0;
 
 	if (ircc_fir > 0 && ircc_sir > 0) {
@@ -2285,6 +2324,490 @@ static int __init smsc_superio_lpc(unsigned short cfg_base)
 	return ret;
 }
 
+/*
+ * Look for some specific subsystem setups that need
+ * pre-configuration not properly done by the BIOS (especially laptops)
+ * This code is based in part on smcinit.c, tosh1800-smcinit.c
+ * and tosh2450-smcinit.c. The table lists the device entries
+ * for ISA bridges with an LPC (Low Pin Count) controller which
+ * handles the communication with the SMSC device. After the LPC
+ * controller is initialized through PCI, the SMSC device is initialized
+ * through a dedicated port in the ISA port-mapped I/O area, this latter
+ * area is used to configure the SMSC device with default
+ * SIR and FIR I/O ports, DMA and IRQ. Different vendors have
+ * used different sets of parameters and different control port
+ * addresses making a subsystem device table necessary.
+ */
+#ifdef CONFIG_PCI
+#define PCIID_VENDOR_INTEL 0x8086
+#define PCIID_VENDOR_ALI 0x10b9
+static struct smsc_ircc_subsystem_configuration subsystem_configurations[] __devinitdata = {
+	{
+		.vendor = PCIID_VENDOR_INTEL, /* Intel 82801DBM LPC bridge */
+		.device = 0x24cc,
+		.subvendor = 0x103c,
+		.subdevice = 0x088c,
+		/* Quite certain these are the same for nc8000 as for nc6000 */
+		.sir_io = 0x02f8,
+		.fir_io = 0x0130,
+		.fir_irq = 0x05,
+		.fir_dma = 0x03,
+		.cfg_base = 0x004e,
+		.preconfigure = preconfigure_through_82801,
+		.name = "HP nc8000",
+	},
+	{
+		.vendor = PCIID_VENDOR_INTEL, /* Intel 82801DBM LPC bridge */
+		.device = 0x24cc,
+		.subvendor = 0x103c,
+		.subdevice = 0x0890,
+		.sir_io = 0x02f8,
+		.fir_io = 0x0130,
+		.fir_irq = 0x05,
+		.fir_dma = 0x03,
+		.cfg_base = 0x004e,
+		.preconfigure = preconfigure_through_82801,
+		.name = "HP nc6000",
+	},
+	{
+		/* Intel 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge */
+		.vendor = PCIID_VENDOR_INTEL,
+		.device = 0x24c0,
+		.subvendor = 0x1179,
+		.subdevice = 0xffff, /* 0xffff is "any" */
+		.sir_io = 0x03f8,
+		.fir_io = 0x0130,
+		.fir_irq = 0x07,
+		.fir_dma = 0x01,
+		.cfg_base = 0x002e,
+		.preconfigure = preconfigure_through_82801,
+		.name = "Toshiba laptop with Intel 82801DB/DBL LPC bridge",
+	},
+	{
+		.vendor = PCIID_VENDOR_INTEL, /* Intel 82801CAM ISA bridge */
+		.device = 0x248c,
+		.subvendor = 0x1179,
+		.subdevice = 0xffff, /* 0xffff is "any" */
+		.sir_io = 0x03f8,
+		.fir_io = 0x0130,
+		.fir_irq = 0x03,
+		.fir_dma = 0x03,
+		.cfg_base = 0x002e,
+		.preconfigure = preconfigure_through_82801,
+		.name = "Toshiba laptop with Intel 82801CAM ISA bridge",
+	},
+	{
+		/* 82801DBM (ICH4-M) LPC Interface Bridge */
+		.vendor = PCIID_VENDOR_INTEL,
+		.device = 0x24cc,
+		.subvendor = 0x1179,
+		.subdevice = 0xffff, /* 0xffff is "any" */
+		.sir_io = 0x03f8,
+		.fir_io = 0x0130,
+		.fir_irq = 0x03,
+		.fir_dma = 0x03,
+		.cfg_base = 0x002e,
+		.preconfigure = preconfigure_through_82801,
+		.name = "Toshiba laptop with Intel 8281DBM LPC bridge",
+	},
+	{
+		/* ALi M1533/M1535 PCI to ISA Bridge [Aladdin IV/V/V+] */
+		.vendor = PCIID_VENDOR_ALI,
+		.device = 0x1533,
+		.subvendor = 0x1179,
+		.subdevice = 0xffff, /* 0xffff is "any" */
+		.sir_io = 0x02e8,
+		.fir_io = 0x02f8,
+		.fir_irq = 0x07,
+		.fir_dma = 0x03,
+		.cfg_base = 0x002e,
+		.preconfigure = preconfigure_through_ali,
+		.name = "Toshiba laptop with ALi ISA bridge",
+	},
+	{ } // Terminator
+};
+
+
+/*
+ * This sets up the basic SMSC parameters
+ * (FIR port, SIR port, FIR DMA, FIR IRQ)
+ * through the chip configuration port.
+ */
+static int __init preconfigure_smsc_chip(struct
+					 smsc_ircc_subsystem_configuration
+					 *conf)
+{
+	unsigned short iobase = conf->cfg_base;
+	unsigned char tmpbyte;
+
+	outb(LPC47N227_CFGACCESSKEY, iobase); // enter configuration state
+	outb(SMSCSIOFLAT_DEVICEID_REG, iobase); // set for device ID
+	tmpbyte = inb(iobase +1); // Read device ID
+	IRDA_DEBUG(0,
+		   "Detected Chip id: 0x%02x, setting up registers...\n",
+		   tmpbyte);
+
+	/* Disable UART1 and set up SIR I/O port */
+	outb(0x24, iobase);  // select CR24 - UART1 base addr
+	outb(0x00, iobase + 1); // disable UART1
+	outb(SMSCSIOFLAT_UART2BASEADDR_REG, iobase);  // select CR25 - UART2 base addr
+	outb( (conf->sir_io >> 2), iobase + 1); // bits 2-9 of 0x3f8
+	tmpbyte = inb(iobase + 1);
+	if (tmpbyte != (conf->sir_io >> 2) ) {
+		IRDA_WARNING("ERROR: could not configure SIR ioport.\n");
+		IRDA_WARNING("Try to supply ircc_cfg argument.\n");
+		return -ENXIO;
+	}
+
+	/* Set up FIR IRQ channel for UART2 */
+	outb(SMSCSIOFLAT_UARTIRQSELECT_REG, iobase); // select CR28 - UART1,2 IRQ select
+	tmpbyte = inb(iobase + 1);
+	tmpbyte &= SMSCSIOFLAT_UART1IRQSELECT_MASK; // Do not touch the UART1 portion
+	tmpbyte |= (conf->fir_irq & SMSCSIOFLAT_UART2IRQSELECT_MASK);
+	outb(tmpbyte, iobase + 1);
+	tmpbyte = inb(iobase + 1) & SMSCSIOFLAT_UART2IRQSELECT_MASK;
+	if (tmpbyte != conf->fir_irq) {
+		IRDA_WARNING("ERROR: could not configure FIR IRQ channel.\n");
+		return -ENXIO;
+	}
+
+	/* Set up FIR I/O port */
+	outb(SMSCSIOFLAT_FIRBASEADDR_REG, iobase);  // CR2B - SCE (FIR) base addr
+	outb((conf->fir_io >> 3), iobase + 1);
+	tmpbyte = inb(iobase + 1);
+	if (tmpbyte != (conf->fir_io >> 3) ) {
+		IRDA_WARNING("ERROR: could not configure FIR I/O port.\n");
+		return -ENXIO;
+	}
+
+	/* Set up FIR DMA channel */
+	outb(SMSCSIOFLAT_FIRDMASELECT_REG, iobase);  // CR2C - SCE (FIR) DMA select
+	outb((conf->fir_dma & LPC47N227_FIRDMASELECT_MASK), iobase + 1); // DMA
+	tmpbyte = inb(iobase + 1) & LPC47N227_FIRDMASELECT_MASK;
+	if (tmpbyte != (conf->fir_dma & LPC47N227_FIRDMASELECT_MASK)) {
+		IRDA_WARNING("ERROR: could not configure FIR DMA channel.\n");
+		return -ENXIO;
+	}
+
+	outb(SMSCSIOFLAT_UARTMODE0C_REG, iobase);  // CR0C - UART mode
+	tmpbyte = inb(iobase + 1);
+	tmpbyte &= ~SMSCSIOFLAT_UART2MODE_MASK |
+		SMSCSIOFLAT_UART2MODE_VAL_IRDA;
+	outb(tmpbyte, iobase + 1); // enable IrDA (HPSIR) mode, high speed
+
+	outb(LPC47N227_APMBOOTDRIVE_REG, iobase);  // CR07 - Auto Pwr Mgt/boot drive sel
+	tmpbyte = inb(iobase + 1);
+	outb(tmpbyte | LPC47N227_UART2AUTOPWRDOWN_MASK, iobase + 1); // enable UART2 autopower down
+
+	/* This one was not part of tosh1800 */
+	outb(0x0a, iobase);  // CR0a - ecp fifo / ir mux
+	tmpbyte = inb(iobase + 1);
+	outb(tmpbyte | 0x40, iobase + 1); // send active device to ir port
+
+	outb(LPC47N227_UART12POWER_REG, iobase);  // CR02 - UART 1,2 power
+	tmpbyte = inb(iobase + 1);
+	outb(tmpbyte | LPC47N227_UART2POWERDOWN_MASK, iobase + 1); // UART2 power up mode, UART1 power down
+
+	outb(LPC47N227_FDCPOWERVALIDCONF_REG, iobase);  // CR00 - FDC Power/valid config cycle
+	tmpbyte = inb(iobase + 1);
+	outb(tmpbyte | LPC47N227_VALID_MASK, iobase + 1); // valid config cycle done
+
+	outb(LPC47N227_CFGEXITKEY, iobase);  // Exit configuration
+
+	return 0;
+}
+
+/* 82801CAM generic registers */
+#define VID 0x00
+#define DID 0x02
+#define PIRQ_A_D_ROUT 0x60
+#define SIRQ_CNTL 0x64
+#define PIRQ_E_H_ROUT 0x68
+#define PCI_DMA_C 0x90
+/* LPC-specific registers */
+#define COM_DEC 0xe0
+#define GEN1_DEC 0xe4
+#define LPC_EN 0xe6
+#define GEN2_DEC 0xec
+/*
+ * Sets up the I/O range using the 82801CAM ISA bridge, 82801DBM LPC bridge
+ * or Intel 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge.
+ * They all work the same way!
+ */
+static int __init preconfigure_through_82801(struct pci_dev *dev,
+					     struct
+					     smsc_ircc_subsystem_configuration
+					     *conf)
+{
+	unsigned short tmpword;
+	unsigned char tmpbyte;
+
+	IRDA_MESSAGE("Setting up Intel 82801 controller and SMSC device\n");
+	/*
+	 * Select the range for the COMA COM port (SIR)
+	 * Register COM_DEC:
+	 * Bit 7: reserved
+	 * Bit 6-4, COMB decode range
+	 * Bit 3: reserved
+	 * Bit 2-0, COMA decode range
+	 *
+	 * Decode ranges:
+	 *   000 = 0x3f8-0x3ff (COM1)
+	 *   001 = 0x2f8-0x2ff (COM2)
+	 *   010 = 0x220-0x227
+	 *   011 = 0x228-0x22f
+	 *   100 = 0x238-0x23f
+	 *   101 = 0x2e8-0x2ef (COM4)
+	 *   110 = 0x338-0x33f
+	 *   111 = 0x3e8-0x3ef (COM3)
+	 */
+	pci_read_config_byte(dev, COM_DEC, &tmpbyte);
+	tmpbyte &= 0xf8; /* mask COMA bits */
+	switch(conf->sir_io) {
+	case 0x3f8:
+		tmpbyte |= 0x00;
+		break;
+	case 0x2f8:
+		tmpbyte |= 0x01;
+		break;
+	case 0x220:
+		tmpbyte |= 0x02;
+		break;
+	case 0x228:
+		tmpbyte |= 0x03;
+		break;
+	case 0x238:
+		tmpbyte |= 0x04;
+		break;
+	case 0x2e8:
+		tmpbyte |= 0x05;
+		break;
+	case 0x338:
+		tmpbyte |= 0x06;
+		break;
+	case 0x3e8:
+		tmpbyte |= 0x07;
+		break;
+	default:
+		tmpbyte |= 0x01; /* COM2 default */
+	}
+	IRDA_DEBUG(1, "COM_DEC (write): 0x%02x\n", tmpbyte);
+	pci_write_config_byte(dev, COM_DEC, tmpbyte);
+
+	/* Enable Low Pin Count interface */
+	pci_read_config_word(dev, LPC_EN, &tmpword);
+	/* These seem to be set up at all times,
+	 * just make sure it is properly set.
+	 */
+	switch(conf->cfg_base) {
+	case 0x04e:
+		tmpword |= 0x2000;
+		break;
+	case 0x02e:
+		tmpword |= 0x1000;
+		break;
+	case 0x062:
+		tmpword |= 0x0800;
+		break;
+	case 0x060:
+		tmpword |= 0x0400;
+		break;
+	default:
+		IRDA_WARNING("Uncommon I/O base address: 0x%04x\n",
+			     conf->cfg_base);
+		break;
+	}
+	tmpword &= 0xfffd; /* disable LPC COMB */
+	tmpword |= 0x0001; /* set bit 0 : enable LPC COMA addr range (GEN2) */
+	IRDA_DEBUG(1, "LPC_EN (write): 0x%04x\n", tmpword);
+	pci_write_config_word(dev, LPC_EN, tmpword);
+
+	/*
+	 * Configure LPC DMA channel
+	 * PCI_DMA_C bits:
+	 * Bit 15-14: DMA channel 7 select
+	 * Bit 13-12: DMA channel 6 select
+	 * Bit 11-10: DMA channel 5 select
+	 * Bit 9-8:   Reserved
+	 * Bit 7-6:   DMA channel 3 select
+	 * Bit 5-4:   DMA channel 2 select
+	 * Bit 3-2:   DMA channel 1 select
+	 * Bit 1-0:   DMA channel 0 select
+	 *  00 = Reserved value
+	 *  01 = PC/PCI DMA
+	 *  10 = Reserved value
+	 *  11 = LPC I/F DMA
+	 */
+	pci_read_config_word(dev, PCI_DMA_C, &tmpword);
+	switch(conf->fir_dma) {
+	case 0x07:
+		tmpword |= 0xc000;
+		break;
+	case 0x06:
+		tmpword |= 0x3000;
+		break;
+	case 0x05:
+		tmpword |= 0x0c00;
+		break;
+	case 0x03:
+		tmpword |= 0x00c0;
+		break;
+	case 0x02:
+		tmpword |= 0x0030;
+		break;
+	case 0x01:
+		tmpword |= 0x000c;
+		break;
+	case 0x00:
+		tmpword |= 0x0003;
+		break;
+	default:
+		break; /* do not change settings */
+	}
+	IRDA_DEBUG(1, "PCI_DMA_C (write): 0x%04x\n", tmpword);
+	pci_write_config_word(dev, PCI_DMA_C, tmpword);
+
+	/*
+	 * GEN2_DEC bits:
+	 * Bit 15-4: Generic I/O range
+	 * Bit 3-1: reserved (read as 0)
+	 * Bit 0: enable GEN2 range on LPC I/F
+	 */
+	tmpword = conf->fir_io & 0xfff8;
+	tmpword |= 0x0001;
+	IRDA_DEBUG(1, "GEN2_DEC (write): 0x%04x\n", tmpword);
+	pci_write_config_word(dev, GEN2_DEC, tmpword);
+
+	/* Pre-configure chip */
+	return preconfigure_smsc_chip(conf);
+}
+
+/*
+ * Pre-configure a certain port on the ALi 1533 bridge.
+ * This is based on reverse-engineering since ALi does not
+ * provide any data sheet for the 1533 chip.
+ */
+static void __init preconfigure_ali_port(struct pci_dev *dev,
+					 unsigned short port)
+{
+	unsigned char reg;
+	/* These bits obviously control the different ports */
+	unsigned char mask;
+	unsigned char tmpbyte;
+
+	switch(port) {
+	case 0x0130:
+	case 0x0178:
+		reg = 0xb0;
+		mask = 0x80;
+		break;
+	case 0x03f8:
+		reg = 0xb4;
+		mask = 0x80;
+		break;
+	case 0x02f8:
+		reg = 0xb4;
+		mask = 0x30;
+		break;
+	case 0x02e8:
+		reg = 0xb4;
+		mask = 0x08;
+		break;
+	default:
+		IRDA_ERROR("Failed to configure unsupported port on ALi 1533 bridge: 0x%04x\n", port);
+		return;
+	}
+
+	pci_read_config_byte(dev, reg, &tmpbyte);
+	/* Turn on the right bits */
+	tmpbyte |= mask;
+	pci_write_config_byte(dev, reg, tmpbyte);
+	IRDA_MESSAGE("Activated ALi 1533 ISA bridge port 0x%04x.\n", port);
+	return;
+}
+
+static int __init preconfigure_through_ali(struct pci_dev *dev,
+					   struct
+					   smsc_ircc_subsystem_configuration
+					   *conf)
+{
+	/* Configure the two ports on the ALi 1533 */
+	preconfigure_ali_port(dev, conf->sir_io);
+	preconfigure_ali_port(dev, conf->fir_io);
+
+	/* Pre-configure chip */
+	return preconfigure_smsc_chip(conf);
+}
+
+static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
+						    unsigned short ircc_fir,
+						    unsigned short ircc_sir,
+						    unsigned char ircc_dma,
+						    unsigned char ircc_irq)
+{
+	struct pci_dev *dev = NULL;
+	unsigned short ss_vendor = 0x0000;
+	unsigned short ss_device = 0x0000;
+	int ret = 0;
+
+	dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
+
+	while (dev != NULL) {
+		struct smsc_ircc_subsystem_configuration *conf;
+
+		/*
+		 * Cache the subsystem vendor/device:
+		 * some manufacturers fail to set this for all components,
+		 * so we save it in case there is just 0x0000 0x0000 on the
+		 * device we want to check.
+		 */
+		if (dev->subsystem_vendor != 0x0000U) {
+			ss_vendor = dev->subsystem_vendor;
+			ss_device = dev->subsystem_device;
+		}
+		conf = subsystem_configurations;
+		for( ; conf->subvendor; conf++) {
+			if(conf->vendor == dev->vendor &&
+			   conf->device == dev->device &&
+			   conf->subvendor == ss_vendor &&
+			   /* Sometimes these are cached values */
+			   (conf->subdevice == ss_device ||
+			    conf->subdevice == 0xffff)) {
+				struct smsc_ircc_subsystem_configuration
+					tmpconf;
+
+				memcpy(&tmpconf, conf,
+				       sizeof(struct smsc_ircc_subsystem_configuration));
+
+				/*
+				 * Override the default values with anything
+				 * passed in as parameter
+				 */
+				if (ircc_cfg != 0)
+					tmpconf.cfg_base = ircc_cfg;
+				if (ircc_fir != 0)
+					tmpconf.fir_io = ircc_fir;
+				if (ircc_sir != 0)
+					tmpconf.sir_io = ircc_sir;
+				if (ircc_dma != 0xff)
+					tmpconf.fir_dma = ircc_dma;
+				if (ircc_irq != 0xff)
+					tmpconf.fir_irq = ircc_irq;
+
+				IRDA_MESSAGE("Detected unconfigured %s SMSC IrDA chip, pre-configuring device.\n", conf->name);
+				if (conf->preconfigure)
+					ret = conf->preconfigure(dev, &tmpconf);
+				else
+					ret = -ENODEV;
+			}
+		}
+		dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
+	}
+
+	return ret;
+}
+#endif // CONFIG_PCI
+
 /************************************************
  *
  * Transceivers specific functions