Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6

* 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (138 commits)
  firewire: Convert OHCI driver to use standard goto unwinding for error handling.
  firewire: Always use parens with sizeof.
  firewire: Drop single buffer request support.
  firewire: Add a comment to describe why we split the sg list.
  firewire: Return SCSI_MLQUEUE_HOST_BUSY for out of memory cases in queuecommand.
  firewire: Handle the last few DMA mapping error cases.
  firewire: Allocate scsi_host up front and allocate the sbp2_device as hostdata.
  firewire: Provide module aliase for backwards compatibility.
  firewire: Add to fw-core-y instead of assigning fw-core-objs in Makefile.
  firewire: Break out shared IEEE1394 constant to separate header file.
  firewire: Use linux/*.h instead of asm/*.h header files.
  firewire: Uppercase most macro names.
  firewire: Coding style cleanup: no spaces after function names.
  firewire: Convert card_rwsem to a regular mutex.
  firewire: Clean up comment style.
  firewire: Use lib/ implementation of CRC ITU-T.
  CRC ITU-T V.41
  firewire: Rename fw-device-cdev.c to fw-cdev.c and move header to include/linux.
  firewire: Future proof the iso ioctls by adding a handle for the iso context.
  firewire: Add read/write and size annotations to IOC numbers.
  ...

Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 324 insertions, 0 deletions

diff --git a/include/linux/crc-itu-t.h b/include/linux/crc-itu-t.h
new file mode 100644
index 000000000000..84920f3cc83e
--- /dev/null
+++ b/include/linux/crc-itu-t.h
@@ -0,0 +1,28 @@
+/*
+ *	crc-itu-t.h - CRC ITU-T V.41 routine
+ *
+ * Implements the standard CRC ITU-T V.41:
+ *   Width 16
+ *   Poly  0x0x1021 (x^16 + x^12 + x^15 + 1)
+ *   Init  0
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 2. See the file COPYING for more details.
+ */
+
+#ifndef CRC_ITU_T_H
+#define CRC_ITU_T_H
+
+#include <linux/types.h>
+
+extern u16 const crc_itu_t_table[256];
+
+extern u16 crc_itu_t(u16 crc, const u8 *buffer, size_t len);
+
+static inline u16 crc_itu_t_byte(u16 crc, const u8 data)
+{
+	return (crc << 8) ^ crc_itu_t_table[((crc >> 8) ^ data) & 0xff];
+}
+
+#endif /* CRC_ITU_T_H */
+
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
new file mode 100644
index 000000000000..d4455eb2ae35
--- /dev/null
+++ b/include/linux/firewire-cdev.h
@@ -0,0 +1,229 @@
+/*
+ * Char device interface.
+ *
+ * Copyright (C) 2005-2006  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.
+ */
+
+#ifndef _LINUX_FIREWIRE_CDEV_H
+#define _LINUX_FIREWIRE_CDEV_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/firewire-constants.h>
+
+#define FW_CDEV_EVENT_BUS_RESET		0x00
+#define FW_CDEV_EVENT_RESPONSE		0x01
+#define FW_CDEV_EVENT_REQUEST		0x02
+#define FW_CDEV_EVENT_ISO_INTERRUPT	0x03
+
+/* The 'closure' fields are for user space to use.  Data passed in the
+ * 'closure' field for a request will be returned in the corresponding
+ * event.  It's a 64-bit type so that it's a fixed size type big
+ * enough to hold a pointer on all platforms. */
+
+struct fw_cdev_event_common {
+	__u64 closure;
+	__u32 type;
+};
+
+struct fw_cdev_event_bus_reset {
+	__u64 closure;
+	__u32 type;
+	__u32 node_id;
+	__u32 local_node_id;
+	__u32 bm_node_id;
+	__u32 irm_node_id;
+	__u32 root_node_id;
+	__u32 generation;
+};
+
+struct fw_cdev_event_response {
+	__u64 closure;
+	__u32 type;
+	__u32 rcode;
+	__u32 length;
+	__u32 data[0];
+};
+
+struct fw_cdev_event_request {
+	__u64 closure;
+	__u32 type;
+	__u32 tcode;
+	__u64 offset;
+	__u32 handle;
+	__u32 length;
+	__u32 data[0];
+};
+
+struct fw_cdev_event_iso_interrupt {
+	__u64 closure;
+	__u32 type;
+	__u32 cycle;
+	__u32 header_length;	/* Length in bytes of following headers. */
+	__u32 header[0];
+};
+
+union fw_cdev_event {
+	struct fw_cdev_event_common common;
+	struct fw_cdev_event_bus_reset bus_reset;
+	struct fw_cdev_event_response response;
+	struct fw_cdev_event_request request;
+	struct fw_cdev_event_iso_interrupt iso_interrupt;
+};
+
+#define FW_CDEV_IOC_GET_INFO		_IOWR('#', 0x00, struct fw_cdev_get_info)
+#define FW_CDEV_IOC_SEND_REQUEST	_IOW('#', 0x01, struct fw_cdev_send_request)
+#define FW_CDEV_IOC_ALLOCATE		_IOWR('#', 0x02, struct fw_cdev_allocate)
+#define FW_CDEV_IOC_DEALLOCATE		_IOW('#', 0x03, struct fw_cdev_deallocate)
+#define FW_CDEV_IOC_SEND_RESPONSE	_IOW('#', 0x04, struct fw_cdev_send_response)
+#define FW_CDEV_IOC_INITIATE_BUS_RESET	_IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
+#define FW_CDEV_IOC_ADD_DESCRIPTOR	_IOWR('#', 0x06, struct fw_cdev_add_descriptor)
+#define FW_CDEV_IOC_REMOVE_DESCRIPTOR	_IOW('#', 0x07, struct fw_cdev_remove_descriptor)
+
+#define FW_CDEV_IOC_CREATE_ISO_CONTEXT	_IOWR('#', 0x08, struct fw_cdev_create_iso_context)
+#define FW_CDEV_IOC_QUEUE_ISO		_IOWR('#', 0x09, struct fw_cdev_queue_iso)
+#define FW_CDEV_IOC_START_ISO		_IOW('#', 0x0a, struct fw_cdev_start_iso)
+#define FW_CDEV_IOC_STOP_ISO		_IOW('#', 0x0b, struct fw_cdev_stop_iso)
+
+/* FW_CDEV_VERSION History
+ *
+ * 1	Feb 18, 2007:  Initial version.
+ */
+#define FW_CDEV_VERSION		1
+
+struct fw_cdev_get_info {
+	/* The version field is just a running serial number.  We
+	 * never break backwards compatibility.  Userspace passes in
+	 * the version it expects and the kernel passes back the
+	 * highest version it can provide.  Even if the structs in
+	 * this interface are extended in a later version, the kernel
+	 * will not copy back more data than what was present in the
+	 * interface version userspace expects. */
+	__u32 version;
+
+	/* If non-zero, at most rom_length bytes of config rom will be
+	 * copied into that user space address.  In either case,
+	 * rom_length is updated with the actual length of the config
+	 * rom. */
+	__u32 rom_length;
+	__u64 rom;
+
+	/* If non-zero, a fw_cdev_event_bus_reset struct will be
+	 * copied here with the current state of the bus.  This does
+	 * not cause a bus reset to happen.  The value of closure in
+	 * this and sub-sequent bus reset events is set to
+	 * bus_reset_closure. */
+	__u64 bus_reset;
+	__u64 bus_reset_closure;
+
+	/* The index of the card this devices belongs to. */
+	__u32 card;
+};
+
+struct fw_cdev_send_request {
+	__u32 tcode;
+	__u32 length;
+	__u64 offset;
+	__u64 closure;
+	__u64 data;
+	__u32 generation;
+};
+
+struct fw_cdev_send_response {
+	__u32 rcode;
+	__u32 length;
+	__u64 data;
+	__u32 handle;
+};
+
+struct fw_cdev_allocate {
+	__u64 offset;
+	__u64 closure;
+	__u32 length;
+	__u32 handle;
+};
+
+struct fw_cdev_deallocate {
+	__u32 handle;
+};
+
+#define FW_CDEV_LONG_RESET	0
+#define FW_CDEV_SHORT_RESET	1
+
+struct fw_cdev_initiate_bus_reset {
+	__u32 type;
+};
+
+struct fw_cdev_add_descriptor {
+	__u32 immediate;
+	__u32 key;
+	__u64 data;
+	__u32 length;
+	__u32 handle;
+};
+
+struct fw_cdev_remove_descriptor {
+	__u32 handle;
+};
+
+#define FW_CDEV_ISO_CONTEXT_TRANSMIT	0
+#define FW_CDEV_ISO_CONTEXT_RECEIVE	1
+
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0		 1
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1		 2
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2		 4
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3		 8
+#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS	15
+
+struct fw_cdev_create_iso_context {
+	__u32 type;
+	__u32 header_size;
+	__u32 channel;
+	__u32 speed;
+	__u64 closure;
+	__u32 handle;
+};
+
+struct fw_cdev_iso_packet {
+	__u16 payload_length;	/* Length of indirect payload. */
+	__u32 interrupt : 1;	/* Generate interrupt on this packet */
+	__u32 skip : 1;		/* Set to not send packet at all. */
+	__u32 tag : 2;
+	__u32 sy : 4;
+	__u32 header_length : 8;	/* Length of immediate header. */
+	__u32 header[0];
+};
+
+struct fw_cdev_queue_iso {
+	__u64 packets;
+	__u64 data;
+	__u32 size;
+	__u32 handle;
+};
+
+struct fw_cdev_start_iso {
+	__s32 cycle;
+	__u32 sync;
+	__u32 tags;
+	__u32 handle;
+};
+
+struct fw_cdev_stop_iso {
+	__u32 handle;
+};
+
+#endif /* _LINUX_FIREWIRE_CDEV_H */
diff --git a/include/linux/firewire-constants.h b/include/linux/firewire-constants.h
new file mode 100644
index 000000000000..b316770a43fd
--- /dev/null
+++ b/include/linux/firewire-constants.h
@@ -0,0 +1,67 @@
+#ifndef _LINUX_FIREWIRE_CONSTANTS_H
+#define _LINUX_FIREWIRE_CONSTANTS_H
+
+#define TCODE_WRITE_QUADLET_REQUEST	0x0
+#define TCODE_WRITE_BLOCK_REQUEST	0x1
+#define TCODE_WRITE_RESPONSE		0x2
+#define TCODE_READ_QUADLET_REQUEST	0x4
+#define TCODE_READ_BLOCK_REQUEST	0x5
+#define TCODE_READ_QUADLET_RESPONSE	0x6
+#define TCODE_READ_BLOCK_RESPONSE	0x7
+#define TCODE_CYCLE_START		0x8
+#define TCODE_LOCK_REQUEST		0x9
+#define TCODE_STREAM_DATA		0xa
+#define TCODE_LOCK_RESPONSE		0xb
+
+#define EXTCODE_MASK_SWAP		0x1
+#define EXTCODE_COMPARE_SWAP		0x2
+#define EXTCODE_FETCH_ADD		0x3
+#define EXTCODE_LITTLE_ADD		0x4
+#define EXTCODE_BOUNDED_ADD		0x5
+#define EXTCODE_WRAP_ADD		0x6
+#define EXTCODE_VENDOR_DEPENDENT	0x7
+
+/* Juju specific tcodes */
+#define TCODE_LOCK_MASK_SWAP		(0x10 | EXTCODE_MASK_SWAP)
+#define TCODE_LOCK_COMPARE_SWAP		(0x10 | EXTCODE_COMPARE_SWAP)
+#define TCODE_LOCK_FETCH_ADD		(0x10 | EXTCODE_FETCH_ADD)
+#define TCODE_LOCK_LITTLE_ADD		(0x10 | EXTCODE_LITTLE_ADD)
+#define TCODE_LOCK_BOUNDED_ADD		(0x10 | EXTCODE_BOUNDED_ADD)
+#define TCODE_LOCK_WRAP_ADD		(0x10 | EXTCODE_WRAP_ADD)
+#define TCODE_LOCK_VENDOR_DEPENDENT	(0x10 | EXTCODE_VENDOR_DEPENDENT)
+
+#define RCODE_COMPLETE			0x0
+#define RCODE_CONFLICT_ERROR		0x4
+#define RCODE_DATA_ERROR		0x5
+#define RCODE_TYPE_ERROR		0x6
+#define RCODE_ADDRESS_ERROR		0x7
+
+/* Juju specific rcodes */
+#define RCODE_SEND_ERROR		0x10
+#define RCODE_CANCELLED			0x11
+#define RCODE_BUSY			0x12
+#define RCODE_GENERATION		0x13
+#define RCODE_NO_ACK			0x14
+
+#define SCODE_100			0x0
+#define SCODE_200			0x1
+#define SCODE_400			0x2
+#define SCODE_800			0x3
+#define SCODE_1600			0x4
+#define SCODE_3200			0x5
+#define SCODE_BETA			0x3
+
+#define ACK_COMPLETE			0x1
+#define ACK_PENDING			0x2
+#define ACK_BUSY_X			0x4
+#define ACK_BUSY_A			0x5
+#define ACK_BUSY_B			0x6
+#define ACK_DATA_ERROR			0xd
+#define ACK_TYPE_ERROR			0xe
+
+#define RETRY_1				0x00
+#define RETRY_X				0x01
+#define RETRY_A				0x02
+#define RETRY_B				0x03
+
+#endif /* _LINUX_FIREWIRE_CONSTANTS_H */