firewire: rename source files

The source files of firewire-core, firewire-ohci, firewire-sbp2, i.e.
 "drivers/firewire/fw-*.c"
are renamed to
 "drivers/firewire/core-*.c",
 "drivers/firewire/ohci.c",
 "drivers/firewire/sbp2.c".

The old fw- prefix was redundant to the directory name.  The new core-
prefix distinguishes the files according to which driver they belong to.

This change comes a little late, but still before further firewire
drivers are added as anticipated RSN.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 0 insertions, 978 deletions

diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
deleted file mode 100644
index 9a6ce9ab2a67..000000000000
--- a/drivers/firewire/fw-transaction.c
+++ /dev/null
@@ -1,978 +0,0 @@
-/*
- * Core IEEE1394 transaction logic
- *
- * Copyright (C) 2004-2006 Kristian Hoegsberg <krh@bitplanet.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <linux/bug.h>
-#include <linux/completion.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/firewire.h>
-#include <linux/firewire-constants.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/idr.h>
-#include <linux/jiffies.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/types.h>
-
-#include <asm/byteorder.h>
-
-#include "core.h"
-
-#define HEADER_PRI(pri)			((pri) << 0)
-#define HEADER_TCODE(tcode)		((tcode) << 4)
-#define HEADER_RETRY(retry)		((retry) << 8)
-#define HEADER_TLABEL(tlabel)		((tlabel) << 10)
-#define HEADER_DESTINATION(destination)	((destination) << 16)
-#define HEADER_SOURCE(source)		((source) << 16)
-#define HEADER_RCODE(rcode)		((rcode) << 12)
-#define HEADER_OFFSET_HIGH(offset_high)	((offset_high) << 0)
-#define HEADER_DATA_LENGTH(length)	((length) << 16)
-#define HEADER_EXTENDED_TCODE(tcode)	((tcode) << 0)
-
-#define HEADER_GET_TCODE(q)		(((q) >> 4) & 0x0f)
-#define HEADER_GET_TLABEL(q)		(((q) >> 10) & 0x3f)
-#define HEADER_GET_RCODE(q)		(((q) >> 12) & 0x0f)
-#define HEADER_GET_DESTINATION(q)	(((q) >> 16) & 0xffff)
-#define HEADER_GET_SOURCE(q)		(((q) >> 16) & 0xffff)
-#define HEADER_GET_OFFSET_HIGH(q)	(((q) >> 0) & 0xffff)
-#define HEADER_GET_DATA_LENGTH(q)	(((q) >> 16) & 0xffff)
-#define HEADER_GET_EXTENDED_TCODE(q)	(((q) >> 0) & 0xffff)
-
-#define HEADER_DESTINATION_IS_BROADCAST(q) \
-	(((q) & HEADER_DESTINATION(0x3f)) == HEADER_DESTINATION(0x3f))
-
-#define PHY_PACKET_CONFIG	0x0
-#define PHY_PACKET_LINK_ON	0x1
-#define PHY_PACKET_SELF_ID	0x2
-
-#define PHY_CONFIG_GAP_COUNT(gap_count)	(((gap_count) << 16) | (1 << 22))
-#define PHY_CONFIG_ROOT_ID(node_id)	((((node_id) & 0x3f) << 24) | (1 << 23))
-#define PHY_IDENTIFIER(id)		((id) << 30)
-
-static int close_transaction(struct fw_transaction *transaction,
-			     struct fw_card *card, int rcode)
-{
-	struct fw_transaction *t;
-	unsigned long flags;
-
-	spin_lock_irqsave(&card->lock, flags);
-	list_for_each_entry(t, &card->transaction_list, link) {
-		if (t == transaction) {
-			list_del(&t->link);
-			card->tlabel_mask &= ~(1 << t->tlabel);
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&card->lock, flags);
-
-	if (&t->link != &card->transaction_list) {
-		t->callback(card, rcode, NULL, 0, t->callback_data);
-		return 0;
-	}
-
-	return -ENOENT;
-}
-
-/*
- * Only valid for transactions that are potentially pending (ie have
- * been sent).
- */
-int fw_cancel_transaction(struct fw_card *card,
-			  struct fw_transaction *transaction)
-{
-	/*
-	 * Cancel the packet transmission if it's still queued.  That
-	 * will call the packet transmission callback which cancels
-	 * the transaction.
-	 */
-
-	if (card->driver->cancel_packet(card, &transaction->packet) == 0)
-		return 0;
-
-	/*
-	 * If the request packet has already been sent, we need to see
-	 * if the transaction is still pending and remove it in that case.
-	 */
-
-	return close_transaction(transaction, card, RCODE_CANCELLED);
-}
-EXPORT_SYMBOL(fw_cancel_transaction);
-
-static void transmit_complete_callback(struct fw_packet *packet,
-				       struct fw_card *card, int status)
-{
-	struct fw_transaction *t =
-	    container_of(packet, struct fw_transaction, packet);
-
-	switch (status) {
-	case ACK_COMPLETE:
-		close_transaction(t, card, RCODE_COMPLETE);
-		break;
-	case ACK_PENDING:
-		t->timestamp = packet->timestamp;
-		break;
-	case ACK_BUSY_X:
-	case ACK_BUSY_A:
-	case ACK_BUSY_B:
-		close_transaction(t, card, RCODE_BUSY);
-		break;
-	case ACK_DATA_ERROR:
-		close_transaction(t, card, RCODE_DATA_ERROR);
-		break;
-	case ACK_TYPE_ERROR:
-		close_transaction(t, card, RCODE_TYPE_ERROR);
-		break;
-	default:
-		/*
-		 * In this case the ack is really a juju specific
-		 * rcode, so just forward that to the callback.
-		 */
-		close_transaction(t, card, status);
-		break;
-	}
-}
-
-static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
-		int destination_id, int source_id, int generation, int speed,
-		unsigned long long offset, void *payload, size_t length)
-{
-	int ext_tcode;
-
-	if (tcode == TCODE_STREAM_DATA) {
-		packet->header[0] =
-			HEADER_DATA_LENGTH(length) |
-			destination_id |
-			HEADER_TCODE(TCODE_STREAM_DATA);
-		packet->header_length = 4;
-		packet->payload = payload;
-		packet->payload_length = length;
-
-		goto common;
-	}
-
-	if (tcode > 0x10) {
-		ext_tcode = tcode & ~0x10;
-		tcode = TCODE_LOCK_REQUEST;
-	} else
-		ext_tcode = 0;
-
-	packet->header[0] =
-		HEADER_RETRY(RETRY_X) |
-		HEADER_TLABEL(tlabel) |
-		HEADER_TCODE(tcode) |
-		HEADER_DESTINATION(destination_id);
-	packet->header[1] =
-		HEADER_OFFSET_HIGH(offset >> 32) | HEADER_SOURCE(source_id);
-	packet->header[2] =
-		offset;
-
-	switch (tcode) {
-	case TCODE_WRITE_QUADLET_REQUEST:
-		packet->header[3] = *(u32 *)payload;
-		packet->header_length = 16;
-		packet->payload_length = 0;
-		break;
-
-	case TCODE_LOCK_REQUEST:
-	case TCODE_WRITE_BLOCK_REQUEST:
-		packet->header[3] =
-			HEADER_DATA_LENGTH(length) |
-			HEADER_EXTENDED_TCODE(ext_tcode);
-		packet->header_length = 16;
-		packet->payload = payload;
-		packet->payload_length = length;
-		break;
-
-	case TCODE_READ_QUADLET_REQUEST:
-		packet->header_length = 12;
-		packet->payload_length = 0;
-		break;
-
-	case TCODE_READ_BLOCK_REQUEST:
-		packet->header[3] =
-			HEADER_DATA_LENGTH(length) |
-			HEADER_EXTENDED_TCODE(ext_tcode);
-		packet->header_length = 16;
-		packet->payload_length = 0;
-		break;
-	}
- common:
-	packet->speed = speed;
-	packet->generation = generation;
-	packet->ack = 0;
-	packet->payload_bus = 0;
-}
-
-/**
- * This function provides low-level access to the IEEE1394 transaction
- * logic.  Most C programs would use either fw_read(), fw_write() or
- * fw_lock() instead - those function are convenience wrappers for
- * this function.  The fw_send_request() function is primarily
- * provided as a flexible, one-stop entry point for languages bindings
- * and protocol bindings.
- *
- * FIXME: Document this function further, in particular the possible
- * values for rcode in the callback.  In short, we map ACK_COMPLETE to
- * RCODE_COMPLETE, internal errors set errno and set rcode to
- * RCODE_SEND_ERROR (which is out of range for standard ieee1394
- * rcodes).  All other rcodes are forwarded unchanged.  For all
- * errors, payload is NULL, length is 0.
- *
- * Can not expect the callback to be called before the function
- * returns, though this does happen in some cases (ACK_COMPLETE and
- * errors).
- *
- * The payload is only used for write requests and must not be freed
- * until the callback has been called.
- *
- * @param card the card from which to send the request
- * @param tcode the tcode for this transaction.  Do not use
- *   TCODE_LOCK_REQUEST directly, instead use TCODE_LOCK_MASK_SWAP
- *   etc. to specify tcode and ext_tcode.
- * @param node_id the destination node ID (bus ID and PHY ID concatenated)
- * @param generation the generation for which node_id is valid
- * @param speed the speed to use for sending the request
- * @param offset the 48 bit offset on the destination node
- * @param payload the data payload for the request subaction
- * @param length the length in bytes of the data to read
- * @param callback function to be called when the transaction is completed
- * @param callback_data pointer to arbitrary data, which will be
- *   passed to the callback
- *
- * In case of asynchronous stream packets i.e. TCODE_STREAM_DATA, the caller
- * needs to synthesize @destination_id with fw_stream_packet_destination_id().
- */
-void fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode,
-		     int destination_id, int generation, int speed,
-		     unsigned long long offset, void *payload, size_t length,
-		     fw_transaction_callback_t callback, void *callback_data)
-{
-	unsigned long flags;
-	int tlabel;
-
-	/*
-	 * Bump the flush timer up 100ms first of all so we
-	 * don't race with a flush timer callback.
-	 */
-
-	mod_timer(&card->flush_timer, jiffies + DIV_ROUND_UP(HZ, 10));
-
-	/*
-	 * Allocate tlabel from the bitmap and put the transaction on
-	 * the list while holding the card spinlock.
-	 */
-
-	spin_lock_irqsave(&card->lock, flags);
-
-	tlabel = card->current_tlabel;
-	if (card->tlabel_mask & (1 << tlabel)) {
-		spin_unlock_irqrestore(&card->lock, flags);
-		callback(card, RCODE_SEND_ERROR, NULL, 0, callback_data);
-		return;
-	}
-
-	card->current_tlabel = (card->current_tlabel + 1) & 0x1f;
-	card->tlabel_mask |= (1 << tlabel);
-
-	t->node_id = destination_id;
-	t->tlabel = tlabel;
-	t->callback = callback;
-	t->callback_data = callback_data;
-
-	fw_fill_request(&t->packet, tcode, t->tlabel,
-			destination_id, card->node_id, generation,
-			speed, offset, payload, length);
-	t->packet.callback = transmit_complete_callback;
-
-	list_add_tail(&t->link, &card->transaction_list);
-
-	spin_unlock_irqrestore(&card->lock, flags);
-
-	card->driver->send_request(card, &t->packet);
-}
-EXPORT_SYMBOL(fw_send_request);
-
-struct transaction_callback_data {
-	struct completion done;
-	void *payload;
-	int rcode;
-};
-
-static void transaction_callback(struct fw_card *card, int rcode,
-				 void *payload, size_t length, void *data)
-{
-	struct transaction_callback_data *d = data;
-
-	if (rcode == RCODE_COMPLETE)
-		memcpy(d->payload, payload, length);
-	d->rcode = rcode;
-	complete(&d->done);
-}
-
-/**
- * fw_run_transaction - send request and sleep until transaction is completed
- *
- * Returns the RCODE.
- */
-int fw_run_transaction(struct fw_card *card, int tcode, int destination_id,
-		       int generation, int speed, unsigned long long offset,
-		       void *payload, size_t length)
-{
-	struct transaction_callback_data d;
-	struct fw_transaction t;
-
-	init_completion(&d.done);
-	d.payload = payload;
-	fw_send_request(card, &t, tcode, destination_id, generation, speed,
-			offset, payload, length, transaction_callback, &d);
-	wait_for_completion(&d.done);
-
-	return d.rcode;
-}
-EXPORT_SYMBOL(fw_run_transaction);
-
-static DEFINE_MUTEX(phy_config_mutex);
-static DECLARE_COMPLETION(phy_config_done);
-
-static void transmit_phy_packet_callback(struct fw_packet *packet,
-					 struct fw_card *card, int status)
-{
-	complete(&phy_config_done);
-}
-
-static struct fw_packet phy_config_packet = {
-	.header_length	= 8,
-	.payload_length	= 0,
-	.speed		= SCODE_100,
-	.callback	= transmit_phy_packet_callback,
-};
-
-void fw_send_phy_config(struct fw_card *card,
-			int node_id, int generation, int gap_count)
-{
-	long timeout = DIV_ROUND_UP(HZ, 10);
-	u32 data = PHY_IDENTIFIER(PHY_PACKET_CONFIG) |
-		   PHY_CONFIG_ROOT_ID(node_id) |
-		   PHY_CONFIG_GAP_COUNT(gap_count);
-
-	mutex_lock(&phy_config_mutex);
-
-	phy_config_packet.header[0] = data;
-	phy_config_packet.header[1] = ~data;
-	phy_config_packet.generation = generation;
-	INIT_COMPLETION(phy_config_done);
-
-	card->driver->send_request(card, &phy_config_packet);
-	wait_for_completion_timeout(&phy_config_done, timeout);
-
-	mutex_unlock(&phy_config_mutex);
-}
-
-void fw_flush_transactions(struct fw_card *card)
-{
-	struct fw_transaction *t, *next;
-	struct list_head list;
-	unsigned long flags;
-
-	INIT_LIST_HEAD(&list);
-	spin_lock_irqsave(&card->lock, flags);
-	list_splice_init(&card->transaction_list, &list);
-	card->tlabel_mask = 0;
-	spin_unlock_irqrestore(&card->lock, flags);
-
-	list_for_each_entry_safe(t, next, &list, link) {
-		card->driver->cancel_packet(card, &t->packet);
-
-		/*
-		 * At this point cancel_packet will never call the
-		 * transaction callback, since we just took all the
-		 * transactions out of the list.  So do it here.
-		 */
-		t->callback(card, RCODE_CANCELLED, NULL, 0, t->callback_data);
-	}
-}
-
-static struct fw_address_handler *lookup_overlapping_address_handler(
-	struct list_head *list, unsigned long long offset, size_t length)
-{
-	struct fw_address_handler *handler;
-
-	list_for_each_entry(handler, list, link) {
-		if (handler->offset < offset + length &&
-		    offset < handler->offset + handler->length)
-			return handler;
-	}
-
-	return NULL;
-}
-
-static struct fw_address_handler *lookup_enclosing_address_handler(
-	struct list_head *list, unsigned long long offset, size_t length)
-{
-	struct fw_address_handler *handler;
-
-	list_for_each_entry(handler, list, link) {
-		if (handler->offset <= offset &&
-		    offset + length <= handler->offset + handler->length)
-			return handler;
-	}
-
-	return NULL;
-}
-
-static DEFINE_SPINLOCK(address_handler_lock);
-static LIST_HEAD(address_handler_list);
-
-const struct fw_address_region fw_high_memory_region =
-	{ .start = 0x000100000000ULL, .end = 0xffffe0000000ULL,  };
-EXPORT_SYMBOL(fw_high_memory_region);
-
-#if 0
-const struct fw_address_region fw_low_memory_region =
-	{ .start = 0x000000000000ULL, .end = 0x000100000000ULL,  };
-const struct fw_address_region fw_private_region =
-	{ .start = 0xffffe0000000ULL, .end = 0xfffff0000000ULL,  };
-const struct fw_address_region fw_csr_region =
-	{ .start = CSR_REGISTER_BASE,
-	  .end   = CSR_REGISTER_BASE | CSR_CONFIG_ROM_END,  };
-const struct fw_address_region fw_unit_space_region =
-	{ .start = 0xfffff0000900ULL, .end = 0x1000000000000ULL, };
-#endif  /*  0  */
-
-/**
- * fw_core_add_address_handler - register for incoming requests
- * @handler: callback
- * @region: region in the IEEE 1212 node space address range
- *
- * region->start, ->end, and handler->length have to be quadlet-aligned.
- *
- * When a request is received that falls within the specified address range,
- * the specified callback is invoked.  The parameters passed to the callback
- * give the details of the particular request.
- *
- * Return value:  0 on success, non-zero otherwise.
- * The start offset of the handler's address region is determined by
- * fw_core_add_address_handler() and is returned in handler->offset.
- */
-int fw_core_add_address_handler(struct fw_address_handler *handler,
-				const struct fw_address_region *region)
-{
-	struct fw_address_handler *other;
-	unsigned long flags;
-	int ret = -EBUSY;
-
-	if (region->start & 0xffff000000000003ULL ||
-	    region->end   & 0xffff000000000003ULL ||
-	    region->start >= region->end ||
-	    handler->length & 3 ||
-	    handler->length == 0)
-		return -EINVAL;
-
-	spin_lock_irqsave(&address_handler_lock, flags);
-
-	handler->offset = region->start;
-	while (handler->offset + handler->length <= region->end) {
-		other =
-		    lookup_overlapping_address_handler(&address_handler_list,
-						       handler->offset,
-						       handler->length);
-		if (other != NULL) {
-			handler->offset += other->length;
-		} else {
-			list_add_tail(&handler->link, &address_handler_list);
-			ret = 0;
-			break;
-		}
-	}
-
-	spin_unlock_irqrestore(&address_handler_lock, flags);
-
-	return ret;
-}
-EXPORT_SYMBOL(fw_core_add_address_handler);
-
-/**
- * fw_core_remove_address_handler - unregister an address handler
- */
-void fw_core_remove_address_handler(struct fw_address_handler *handler)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&address_handler_lock, flags);
-	list_del(&handler->link);
-	spin_unlock_irqrestore(&address_handler_lock, flags);
-}
-EXPORT_SYMBOL(fw_core_remove_address_handler);
-
-struct fw_request {
-	struct fw_packet response;
-	u32 request_header[4];
-	int ack;
-	u32 length;
-	u32 data[0];
-};
-
-static void free_response_callback(struct fw_packet *packet,
-				   struct fw_card *card, int status)
-{
-	struct fw_request *request;
-
-	request = container_of(packet, struct fw_request, response);
-	kfree(request);
-}
-
-void fw_fill_response(struct fw_packet *response, u32 *request_header,
-		      int rcode, void *payload, size_t length)
-{
-	int tcode, tlabel, extended_tcode, source, destination;
-
-	tcode          = HEADER_GET_TCODE(request_header[0]);
-	tlabel         = HEADER_GET_TLABEL(request_header[0]);
-	source         = HEADER_GET_DESTINATION(request_header[0]);
-	destination    = HEADER_GET_SOURCE(request_header[1]);
-	extended_tcode = HEADER_GET_EXTENDED_TCODE(request_header[3]);
-
-	response->header[0] =
-		HEADER_RETRY(RETRY_1) |
-		HEADER_TLABEL(tlabel) |
-		HEADER_DESTINATION(destination);
-	response->header[1] =
-		HEADER_SOURCE(source) |
-		HEADER_RCODE(rcode);
-	response->header[2] = 0;
-
-	switch (tcode) {
-	case TCODE_WRITE_QUADLET_REQUEST:
-	case TCODE_WRITE_BLOCK_REQUEST:
-		response->header[0] |= HEADER_TCODE(TCODE_WRITE_RESPONSE);
-		response->header_length = 12;
-		response->payload_length = 0;
-		break;
-
-	case TCODE_READ_QUADLET_REQUEST:
-		response->header[0] |=
-			HEADER_TCODE(TCODE_READ_QUADLET_RESPONSE);
-		if (payload != NULL)
-			response->header[3] = *(u32 *)payload;
-		else
-			response->header[3] = 0;
-		response->header_length = 16;
-		response->payload_length = 0;
-		break;
-
-	case TCODE_READ_BLOCK_REQUEST:
-	case TCODE_LOCK_REQUEST:
-		response->header[0] |= HEADER_TCODE(tcode + 2);
-		response->header[3] =
-			HEADER_DATA_LENGTH(length) |
-			HEADER_EXTENDED_TCODE(extended_tcode);
-		response->header_length = 16;
-		response->payload = payload;
-		response->payload_length = length;
-		break;
-
-	default:
-		BUG();
-		return;
-	}
-
-	response->payload_bus = 0;
-}
-EXPORT_SYMBOL(fw_fill_response);
-
-static struct fw_request *allocate_request(struct fw_packet *p)
-{
-	struct fw_request *request;
-	u32 *data, length;
-	int request_tcode, t;
-
-	request_tcode = HEADER_GET_TCODE(p->header[0]);
-	switch (request_tcode) {
-	case TCODE_WRITE_QUADLET_REQUEST:
-		data = &p->header[3];
-		length = 4;
-		break;
-
-	case TCODE_WRITE_BLOCK_REQUEST:
-	case TCODE_LOCK_REQUEST:
-		data = p->payload;
-		length = HEADER_GET_DATA_LENGTH(p->header[3]);
-		break;
-
-	case TCODE_READ_QUADLET_REQUEST:
-		data = NULL;
-		length = 4;
-		break;
-
-	case TCODE_READ_BLOCK_REQUEST:
-		data = NULL;
-		length = HEADER_GET_DATA_LENGTH(p->header[3]);
-		break;
-
-	default:
-		fw_error("ERROR - corrupt request received - %08x %08x %08x\n",
-			 p->header[0], p->header[1], p->header[2]);
-		return NULL;
-	}
-
-	request = kmalloc(sizeof(*request) + length, GFP_ATOMIC);
-	if (request == NULL)
-		return NULL;
-
-	t = (p->timestamp & 0x1fff) + 4000;
-	if (t >= 8000)
-		t = (p->timestamp & ~0x1fff) + 0x2000 + t - 8000;
-	else
-		t = (p->timestamp & ~0x1fff) + t;
-
-	request->response.speed = p->speed;
-	request->response.timestamp = t;
-	request->response.generation = p->generation;
-	request->response.ack = 0;
-	request->response.callback = free_response_callback;
-	request->ack = p->ack;
-	request->length = length;
-	if (data)
-		memcpy(request->data, data, length);
-
-	memcpy(request->request_header, p->header, sizeof(p->header));
-
-	return request;
-}
-
-void fw_send_response(struct fw_card *card,
-		      struct fw_request *request, int rcode)
-{
-	/* unified transaction or broadcast transaction: don't respond */
-	if (request->ack != ACK_PENDING ||
-	    HEADER_DESTINATION_IS_BROADCAST(request->request_header[0])) {
-		kfree(request);
-		return;
-	}
-
-	if (rcode == RCODE_COMPLETE)
-		fw_fill_response(&request->response, request->request_header,
-				 rcode, request->data, request->length);
-	else
-		fw_fill_response(&request->response, request->request_header,
-				 rcode, NULL, 0);
-
-	card->driver->send_response(card, &request->response);
-}
-EXPORT_SYMBOL(fw_send_response);
-
-void fw_core_handle_request(struct fw_card *card, struct fw_packet *p)
-{
-	struct fw_address_handler *handler;
-	struct fw_request *request;
-	unsigned long long offset;
-	unsigned long flags;
-	int tcode, destination, source;
-
-	if (p->ack != ACK_PENDING && p->ack != ACK_COMPLETE)
-		return;
-
-	request = allocate_request(p);
-	if (request == NULL) {
-		/* FIXME: send statically allocated busy packet. */
-		return;
-	}
-
-	offset      =
-		((unsigned long long)
-		 HEADER_GET_OFFSET_HIGH(p->header[1]) << 32) | p->header[2];
-	tcode       = HEADER_GET_TCODE(p->header[0]);
-	destination = HEADER_GET_DESTINATION(p->header[0]);
-	source      = HEADER_GET_SOURCE(p->header[1]);
-
-	spin_lock_irqsave(&address_handler_lock, flags);
-	handler = lookup_enclosing_address_handler(&address_handler_list,
-						   offset, request->length);
-	spin_unlock_irqrestore(&address_handler_lock, flags);
-
-	/*
-	 * FIXME: lookup the fw_node corresponding to the sender of
-	 * this request and pass that to the address handler instead
-	 * of the node ID.  We may also want to move the address
-	 * allocations to fw_node so we only do this callback if the
-	 * upper layers registered it for this node.
-	 */
-
-	if (handler == NULL)
-		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
-	else
-		handler->address_callback(card, request,
-					  tcode, destination, source,
-					  p->generation, p->speed, offset,
-					  request->data, request->length,
-					  handler->callback_data);
-}
-EXPORT_SYMBOL(fw_core_handle_request);
-
-void fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
-{
-	struct fw_transaction *t;
-	unsigned long flags;
-	u32 *data;
-	size_t data_length;
-	int tcode, tlabel, destination, source, rcode;
-
-	tcode       = HEADER_GET_TCODE(p->header[0]);
-	tlabel      = HEADER_GET_TLABEL(p->header[0]);
-	destination = HEADER_GET_DESTINATION(p->header[0]);
-	source      = HEADER_GET_SOURCE(p->header[1]);
-	rcode       = HEADER_GET_RCODE(p->header[1]);
-
-	spin_lock_irqsave(&card->lock, flags);
-	list_for_each_entry(t, &card->transaction_list, link) {
-		if (t->node_id == source && t->tlabel == tlabel) {
-			list_del(&t->link);
-			card->tlabel_mask &= ~(1 << t->tlabel);
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&card->lock, flags);
-
-	if (&t->link == &card->transaction_list) {
-		fw_notify("Unsolicited response (source %x, tlabel %x)\n",
-			  source, tlabel);
-		return;
-	}
-
-	/*
-	 * FIXME: sanity check packet, is length correct, does tcodes
-	 * and addresses match.
-	 */
-
-	switch (tcode) {
-	case TCODE_READ_QUADLET_RESPONSE:
-		data = (u32 *) &p->header[3];
-		data_length = 4;
-		break;
-
-	case TCODE_WRITE_RESPONSE:
-		data = NULL;
-		data_length = 0;
-		break;
-
-	case TCODE_READ_BLOCK_RESPONSE:
-	case TCODE_LOCK_RESPONSE:
-		data = p->payload;
-		data_length = HEADER_GET_DATA_LENGTH(p->header[3]);
-		break;
-
-	default:
-		/* Should never happen, this is just to shut up gcc. */
-		data = NULL;
-		data_length = 0;
-		break;
-	}
-
-	/*
-	 * The response handler may be executed while the request handler
-	 * is still pending.  Cancel the request handler.
-	 */
-	card->driver->cancel_packet(card, &t->packet);
-
-	t->callback(card, rcode, data, data_length, t->callback_data);
-}
-EXPORT_SYMBOL(fw_core_handle_response);
-
-static const struct fw_address_region topology_map_region =
-	{ .start = CSR_REGISTER_BASE | CSR_TOPOLOGY_MAP,
-	  .end   = CSR_REGISTER_BASE | CSR_TOPOLOGY_MAP_END, };
-
-static void handle_topology_map(struct fw_card *card, struct fw_request *request,
-		int tcode, int destination, int source, int generation,
-		int speed, unsigned long long offset,
-		void *payload, size_t length, void *callback_data)
-{
-	int i, start, end;
-	__be32 *map;
-
-	if (!TCODE_IS_READ_REQUEST(tcode)) {
-		fw_send_response(card, request, RCODE_TYPE_ERROR);
-		return;
-	}
-
-	if ((offset & 3) > 0 || (length & 3) > 0) {
-		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
-		return;
-	}
-
-	start = (offset - topology_map_region.start) / 4;
-	end = start + length / 4;
-	map = payload;
-
-	for (i = 0; i < length / 4; i++)
-		map[i] = cpu_to_be32(card->topology_map[start + i]);
-
-	fw_send_response(card, request, RCODE_COMPLETE);
-}
-
-static struct fw_address_handler topology_map = {
-	.length			= 0x200,
-	.address_callback	= handle_topology_map,
-};
-
-static const struct fw_address_region registers_region =
-	{ .start = CSR_REGISTER_BASE,
-	  .end   = CSR_REGISTER_BASE | CSR_CONFIG_ROM, };
-
-static void handle_registers(struct fw_card *card, struct fw_request *request,
-		int tcode, int destination, int source, int generation,
-		int speed, unsigned long long offset,
-		void *payload, size_t length, void *callback_data)
-{
-	int reg = offset & ~CSR_REGISTER_BASE;
-	unsigned long long bus_time;
-	__be32 *data = payload;
-	int rcode = RCODE_COMPLETE;
-
-	switch (reg) {
-	case CSR_CYCLE_TIME:
-	case CSR_BUS_TIME:
-		if (!TCODE_IS_READ_REQUEST(tcode) || length != 4) {
-			rcode = RCODE_TYPE_ERROR;
-			break;
-		}
-
-		bus_time = card->driver->get_bus_time(card);
-		if (reg == CSR_CYCLE_TIME)
-			*data = cpu_to_be32(bus_time);
-		else
-			*data = cpu_to_be32(bus_time >> 25);
-		break;
-
-	case CSR_BROADCAST_CHANNEL:
-		if (tcode == TCODE_READ_QUADLET_REQUEST)
-			*data = cpu_to_be32(card->broadcast_channel);
-		else if (tcode == TCODE_WRITE_QUADLET_REQUEST)
-			card->broadcast_channel =
-			    (be32_to_cpu(*data) & BROADCAST_CHANNEL_VALID) |
-			    BROADCAST_CHANNEL_INITIAL;
-		else
-			rcode = RCODE_TYPE_ERROR;
-		break;
-
-	case CSR_BUS_MANAGER_ID:
-	case CSR_BANDWIDTH_AVAILABLE:
-	case CSR_CHANNELS_AVAILABLE_HI:
-	case CSR_CHANNELS_AVAILABLE_LO:
-		/*
-		 * FIXME: these are handled by the OHCI hardware and
-		 * the stack never sees these request. If we add
-		 * support for a new type of controller that doesn't
-		 * handle this in hardware we need to deal with these
-		 * transactions.
-		 */
-		BUG();
-		break;
-
-	case CSR_BUSY_TIMEOUT:
-		/* FIXME: Implement this. */
-
-	default:
-		rcode = RCODE_ADDRESS_ERROR;
-		break;
-	}
-
-	fw_send_response(card, request, rcode);
-}
-
-static struct fw_address_handler registers = {
-	.length			= 0x400,
-	.address_callback	= handle_registers,
-};
-
-MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
-MODULE_DESCRIPTION("Core IEEE1394 transaction logic");
-MODULE_LICENSE("GPL");
-
-static const u32 vendor_textual_descriptor[] = {
-	/* textual descriptor leaf () */
-	0x00060000,
-	0x00000000,
-	0x00000000,
-	0x4c696e75,		/* L i n u */
-	0x78204669,		/* x   F i */
-	0x72657769,		/* r e w i */
-	0x72650000,		/* r e     */
-};
-
-static const u32 model_textual_descriptor[] = {
-	/* model descriptor leaf () */
-	0x00030000,
-	0x00000000,
-	0x00000000,
-	0x4a756a75,		/* J u j u */
-};
-
-static struct fw_descriptor vendor_id_descriptor = {
-	.length = ARRAY_SIZE(vendor_textual_descriptor),
-	.immediate = 0x03d00d1e,
-	.key = 0x81000000,
-	.data = vendor_textual_descriptor,
-};
-
-static struct fw_descriptor model_id_descriptor = {
-	.length = ARRAY_SIZE(model_textual_descriptor),
-	.immediate = 0x17000001,
-	.key = 0x81000000,
-	.data = model_textual_descriptor,
-};
-
-static int __init fw_core_init(void)
-{
-	int ret;
-
-	ret = bus_register(&fw_bus_type);
-	if (ret < 0)
-		return ret;
-
-	fw_cdev_major = register_chrdev(0, "firewire", &fw_device_ops);
-	if (fw_cdev_major < 0) {
-		bus_unregister(&fw_bus_type);
-		return fw_cdev_major;
-	}
-
-	fw_core_add_address_handler(&topology_map, &topology_map_region);
-	fw_core_add_address_handler(&registers, &registers_region);
-	fw_core_add_descriptor(&vendor_id_descriptor);
-	fw_core_add_descriptor(&model_id_descriptor);
-
-	return 0;
-}
-
-static void __exit fw_core_cleanup(void)
-{
-	unregister_chrdev(fw_cdev_major, "firewire");
-	bus_unregister(&fw_bus_type);
-	idr_destroy(&fw_device_idr);
-}
-
-module_init(fw_core_init);
-module_exit(fw_core_cleanup);