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>
This commit is contained in:
Linus Torvalds
2007-05-10 13:29:36 -07:00
22 changed files with 8359 additions and 0 deletions
+1
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@@ -36,6 +36,7 @@ obj-$(CONFIG_FC4) += fc4/
obj-$(CONFIG_SCSI) += scsi/ obj-$(CONFIG_SCSI) += scsi/
obj-$(CONFIG_ATA) += ata/ obj-$(CONFIG_ATA) += ata/
obj-$(CONFIG_FUSION) += message/ obj-$(CONFIG_FUSION) += message/
obj-$(CONFIG_FIREWIRE) += firewire/
obj-$(CONFIG_IEEE1394) += ieee1394/ obj-$(CONFIG_IEEE1394) += ieee1394/
obj-y += cdrom/ obj-y += cdrom/
obj-y += auxdisplay/ obj-y += auxdisplay/
+61
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@@ -0,0 +1,61 @@
# -*- shell-script -*-
comment "An alternative FireWire stack is available with EXPERIMENTAL=y"
depends on EXPERIMENTAL=n
config FIREWIRE
tristate "IEEE 1394 (FireWire) support (JUJU alternative stack, experimental)"
depends on EXPERIMENTAL
select CRC_ITU_T
help
IEEE 1394 describes a high performance serial bus, which is also
known as FireWire(tm) or i.Link(tm) and is used for connecting all
sorts of devices (most notably digital video cameras) to your
computer.
If you have FireWire hardware and want to use it, say Y here. This
is the core support only, you will also need to select a driver for
your IEEE 1394 adapter.
To compile this driver as a module, say M here: the module will be
called fw-core.
This is the "JUJU" FireWire stack, an alternative implementation
designed for robustness and simplicity. You can build either this
stack, or the classic stack (the ieee1394 driver, ohci1394 etc.)
or both.
config FIREWIRE_OHCI
tristate "Support for OHCI FireWire host controllers"
depends on PCI && FIREWIRE
help
Enable this driver if you have a FireWire controller based
on the OHCI specification. For all practical purposes, this
is the only chipset in use, so say Y here.
To compile this driver as a module, say M here: The module will be
called fw-ohci.
If you also build ohci1394 of the classic IEEE 1394 driver stack,
blacklist either ohci1394 or fw-ohci to let hotplug load the desired
driver.
config FIREWIRE_SBP2
tristate "Support for storage devices (SBP-2 protocol driver)"
depends on FIREWIRE && SCSI
help
This option enables you to use SBP-2 devices connected to a
FireWire bus. SBP-2 devices include storage devices like
harddisks and DVD drives, also some other FireWire devices
like scanners.
To compile this driver as a module, say M here: The module will be
called fw-sbp2.
You should also enable support for disks, CD-ROMs, etc. in the SCSI
configuration section.
If you also build sbp2 of the classic IEEE 1394 driver stack,
blacklist either sbp2 or fw-sbp2 to let hotplug load the desired
driver.
+10
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@@ -0,0 +1,10 @@
#
# Makefile for the Linux IEEE 1394 implementation
#
fw-core-y += fw-card.o fw-topology.o fw-transaction.o fw-iso.o \
fw-device.o fw-cdev.o
obj-$(CONFIG_FIREWIRE) += fw-core.o
obj-$(CONFIG_FIREWIRE_OHCI) += fw-ohci.o
obj-$(CONFIG_FIREWIRE_SBP2) += fw-sbp2.o
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+146
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@@ -0,0 +1,146 @@
/*
* 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 __fw_device_h
#define __fw_device_h
#include <linux/fs.h>
#include <linux/cdev.h>
#include <asm/atomic.h>
enum fw_device_state {
FW_DEVICE_INITIALIZING,
FW_DEVICE_RUNNING,
FW_DEVICE_SHUTDOWN,
};
struct fw_attribute_group {
struct attribute_group *groups[2];
struct attribute_group group;
struct attribute *attrs[11];
};
struct fw_device {
atomic_t state;
struct fw_node *node;
int node_id;
int generation;
struct fw_card *card;
struct device device;
struct list_head link;
struct list_head client_list;
u32 *config_rom;
size_t config_rom_length;
int config_rom_retries;
struct delayed_work work;
struct fw_attribute_group attribute_group;
};
static inline struct fw_device *
fw_device(struct device *dev)
{
return container_of(dev, struct fw_device, device);
}
static inline int
fw_device_is_shutdown(struct fw_device *device)
{
return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
}
struct fw_device *fw_device_get(struct fw_device *device);
void fw_device_put(struct fw_device *device);
int fw_device_enable_phys_dma(struct fw_device *device);
void fw_device_cdev_update(struct fw_device *device);
void fw_device_cdev_remove(struct fw_device *device);
struct fw_device *fw_device_from_devt(dev_t devt);
extern int fw_cdev_major;
struct fw_unit {
struct device device;
u32 *directory;
struct fw_attribute_group attribute_group;
};
static inline struct fw_unit *
fw_unit(struct device *dev)
{
return container_of(dev, struct fw_unit, device);
}
#define CSR_OFFSET 0x40
#define CSR_LEAF 0x80
#define CSR_DIRECTORY 0xc0
#define CSR_DESCRIPTOR 0x01
#define CSR_VENDOR 0x03
#define CSR_HARDWARE_VERSION 0x04
#define CSR_NODE_CAPABILITIES 0x0c
#define CSR_UNIT 0x11
#define CSR_SPECIFIER_ID 0x12
#define CSR_VERSION 0x13
#define CSR_DEPENDENT_INFO 0x14
#define CSR_MODEL 0x17
#define CSR_INSTANCE 0x18
#define SBP2_COMMAND_SET_SPECIFIER 0x38
#define SBP2_COMMAND_SET 0x39
#define SBP2_COMMAND_SET_REVISION 0x3b
#define SBP2_FIRMWARE_REVISION 0x3c
struct fw_csr_iterator {
u32 *p;
u32 *end;
};
void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 *p);
int fw_csr_iterator_next(struct fw_csr_iterator *ci,
int *key, int *value);
#define FW_MATCH_VENDOR 0x0001
#define FW_MATCH_MODEL 0x0002
#define FW_MATCH_SPECIFIER_ID 0x0004
#define FW_MATCH_VERSION 0x0008
struct fw_device_id {
u32 match_flags;
u32 vendor;
u32 model;
u32 specifier_id;
u32 version;
void *driver_data;
};
struct fw_driver {
struct device_driver driver;
/* Called when the parent device sits through a bus reset. */
void (*update) (struct fw_unit *unit);
const struct fw_device_id *id_table;
};
static inline struct fw_driver *
fw_driver(struct device_driver *drv)
{
return container_of(drv, struct fw_driver, driver);
}
extern const struct file_operations fw_device_ops;
#endif /* __fw_device_h */
+163
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@@ -0,0 +1,163 @@
/*
* Isochronous IO functionality
*
* Copyright (C) 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/kernel.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include "fw-transaction.h"
#include "fw-topology.h"
#include "fw-device.h"
int
fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
int page_count, enum dma_data_direction direction)
{
int i, j, retval = -ENOMEM;
dma_addr_t address;
buffer->page_count = page_count;
buffer->direction = direction;
buffer->pages = kmalloc(page_count * sizeof(buffer->pages[0]),
GFP_KERNEL);
if (buffer->pages == NULL)
goto out;
for (i = 0; i < buffer->page_count; i++) {
buffer->pages[i] = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
if (buffer->pages[i] == NULL)
goto out_pages;
address = dma_map_page(card->device, buffer->pages[i],
0, PAGE_SIZE, direction);
if (dma_mapping_error(address)) {
__free_page(buffer->pages[i]);
goto out_pages;
}
set_page_private(buffer->pages[i], address);
}
return 0;
out_pages:
for (j = 0; j < i; j++) {
address = page_private(buffer->pages[j]);
dma_unmap_page(card->device, address,
PAGE_SIZE, DMA_TO_DEVICE);
__free_page(buffer->pages[j]);
}
kfree(buffer->pages);
out:
buffer->pages = NULL;
return retval;
}
int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma)
{
unsigned long uaddr;
int i, retval;
uaddr = vma->vm_start;
for (i = 0; i < buffer->page_count; i++) {
retval = vm_insert_page(vma, uaddr, buffer->pages[i]);
if (retval)
return retval;
uaddr += PAGE_SIZE;
}
return 0;
}
void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer,
struct fw_card *card)
{
int i;
dma_addr_t address;
for (i = 0; i < buffer->page_count; i++) {
address = page_private(buffer->pages[i]);
dma_unmap_page(card->device, address,
PAGE_SIZE, DMA_TO_DEVICE);
__free_page(buffer->pages[i]);
}
kfree(buffer->pages);
buffer->pages = NULL;
}
struct fw_iso_context *
fw_iso_context_create(struct fw_card *card, int type,
int channel, int speed, size_t header_size,
fw_iso_callback_t callback, void *callback_data)
{
struct fw_iso_context *ctx;
ctx = card->driver->allocate_iso_context(card, type, header_size);
if (IS_ERR(ctx))
return ctx;
ctx->card = card;
ctx->type = type;
ctx->channel = channel;
ctx->speed = speed;
ctx->header_size = header_size;
ctx->callback = callback;
ctx->callback_data = callback_data;
return ctx;
}
EXPORT_SYMBOL(fw_iso_context_create);
void fw_iso_context_destroy(struct fw_iso_context *ctx)
{
struct fw_card *card = ctx->card;
card->driver->free_iso_context(ctx);
}
EXPORT_SYMBOL(fw_iso_context_destroy);
int
fw_iso_context_start(struct fw_iso_context *ctx, int cycle, int sync, int tags)
{
return ctx->card->driver->start_iso(ctx, cycle, sync, tags);
}
EXPORT_SYMBOL(fw_iso_context_start);
int
fw_iso_context_queue(struct fw_iso_context *ctx,
struct fw_iso_packet *packet,
struct fw_iso_buffer *buffer,
unsigned long payload)
{
struct fw_card *card = ctx->card;
return card->driver->queue_iso(ctx, packet, buffer, payload);
}
EXPORT_SYMBOL(fw_iso_context_queue);
int
fw_iso_context_stop(struct fw_iso_context *ctx)
{
return ctx->card->driver->stop_iso(ctx);
}
EXPORT_SYMBOL(fw_iso_context_stop);
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#ifndef __fw_ohci_h
#define __fw_ohci_h
/* OHCI register map */
#define OHCI1394_Version 0x000
#define OHCI1394_GUID_ROM 0x004
#define OHCI1394_ATRetries 0x008
#define OHCI1394_CSRData 0x00C
#define OHCI1394_CSRCompareData 0x010
#define OHCI1394_CSRControl 0x014
#define OHCI1394_ConfigROMhdr 0x018
#define OHCI1394_BusID 0x01C
#define OHCI1394_BusOptions 0x020
#define OHCI1394_GUIDHi 0x024
#define OHCI1394_GUIDLo 0x028
#define OHCI1394_ConfigROMmap 0x034
#define OHCI1394_PostedWriteAddressLo 0x038
#define OHCI1394_PostedWriteAddressHi 0x03C
#define OHCI1394_VendorID 0x040
#define OHCI1394_HCControlSet 0x050
#define OHCI1394_HCControlClear 0x054
#define OHCI1394_HCControl_BIBimageValid 0x80000000
#define OHCI1394_HCControl_noByteSwapData 0x40000000
#define OHCI1394_HCControl_programPhyEnable 0x00800000
#define OHCI1394_HCControl_aPhyEnhanceEnable 0x00400000
#define OHCI1394_HCControl_LPS 0x00080000
#define OHCI1394_HCControl_postedWriteEnable 0x00040000
#define OHCI1394_HCControl_linkEnable 0x00020000
#define OHCI1394_HCControl_softReset 0x00010000
#define OHCI1394_SelfIDBuffer 0x064
#define OHCI1394_SelfIDCount 0x068
#define OHCI1394_IRMultiChanMaskHiSet 0x070
#define OHCI1394_IRMultiChanMaskHiClear 0x074
#define OHCI1394_IRMultiChanMaskLoSet 0x078
#define OHCI1394_IRMultiChanMaskLoClear 0x07C
#define OHCI1394_IntEventSet 0x080
#define OHCI1394_IntEventClear 0x084
#define OHCI1394_IntMaskSet 0x088
#define OHCI1394_IntMaskClear 0x08C
#define OHCI1394_IsoXmitIntEventSet 0x090
#define OHCI1394_IsoXmitIntEventClear 0x094
#define OHCI1394_IsoXmitIntMaskSet 0x098
#define OHCI1394_IsoXmitIntMaskClear 0x09C
#define OHCI1394_IsoRecvIntEventSet 0x0A0
#define OHCI1394_IsoRecvIntEventClear 0x0A4
#define OHCI1394_IsoRecvIntMaskSet 0x0A8
#define OHCI1394_IsoRecvIntMaskClear 0x0AC
#define OHCI1394_InitialBandwidthAvailable 0x0B0
#define OHCI1394_InitialChannelsAvailableHi 0x0B4
#define OHCI1394_InitialChannelsAvailableLo 0x0B8
#define OHCI1394_FairnessControl 0x0DC
#define OHCI1394_LinkControlSet 0x0E0
#define OHCI1394_LinkControlClear 0x0E4
#define OHCI1394_LinkControl_rcvSelfID (1 << 9)
#define OHCI1394_LinkControl_rcvPhyPkt (1 << 10)
#define OHCI1394_LinkControl_cycleTimerEnable (1 << 20)
#define OHCI1394_LinkControl_cycleMaster (1 << 21)
#define OHCI1394_LinkControl_cycleSource (1 << 22)
#define OHCI1394_NodeID 0x0E8
#define OHCI1394_NodeID_idValid 0x80000000
#define OHCI1394_PhyControl 0x0EC
#define OHCI1394_PhyControl_Read(addr) (((addr) << 8) | 0x00008000)
#define OHCI1394_PhyControl_ReadDone 0x80000000
#define OHCI1394_PhyControl_ReadData(r) (((r) & 0x00ff0000) >> 16)
#define OHCI1394_PhyControl_Write(addr, data) (((addr) << 8) | (data) | 0x00004000)
#define OHCI1394_PhyControl_WriteDone 0x00004000
#define OHCI1394_IsochronousCycleTimer 0x0F0
#define OHCI1394_AsReqFilterHiSet 0x100
#define OHCI1394_AsReqFilterHiClear 0x104
#define OHCI1394_AsReqFilterLoSet 0x108
#define OHCI1394_AsReqFilterLoClear 0x10C
#define OHCI1394_PhyReqFilterHiSet 0x110
#define OHCI1394_PhyReqFilterHiClear 0x114
#define OHCI1394_PhyReqFilterLoSet 0x118
#define OHCI1394_PhyReqFilterLoClear 0x11C
#define OHCI1394_PhyUpperBound 0x120
#define OHCI1394_AsReqTrContextBase 0x180
#define OHCI1394_AsReqTrContextControlSet 0x180
#define OHCI1394_AsReqTrContextControlClear 0x184
#define OHCI1394_AsReqTrCommandPtr 0x18C
#define OHCI1394_AsRspTrContextBase 0x1A0
#define OHCI1394_AsRspTrContextControlSet 0x1A0
#define OHCI1394_AsRspTrContextControlClear 0x1A4
#define OHCI1394_AsRspTrCommandPtr 0x1AC
#define OHCI1394_AsReqRcvContextBase 0x1C0
#define OHCI1394_AsReqRcvContextControlSet 0x1C0
#define OHCI1394_AsReqRcvContextControlClear 0x1C4
#define OHCI1394_AsReqRcvCommandPtr 0x1CC
#define OHCI1394_AsRspRcvContextBase 0x1E0
#define OHCI1394_AsRspRcvContextControlSet 0x1E0
#define OHCI1394_AsRspRcvContextControlClear 0x1E4
#define OHCI1394_AsRspRcvCommandPtr 0x1EC
/* Isochronous transmit registers */
#define OHCI1394_IsoXmitContextBase(n) (0x200 + 16 * (n))
#define OHCI1394_IsoXmitContextControlSet(n) (0x200 + 16 * (n))
#define OHCI1394_IsoXmitContextControlClear(n) (0x204 + 16 * (n))
#define OHCI1394_IsoXmitCommandPtr(n) (0x20C + 16 * (n))
/* Isochronous receive registers */
#define OHCI1394_IsoRcvContextBase(n) (0x400 + 32 * (n))
#define OHCI1394_IsoRcvContextControlSet(n) (0x400 + 32 * (n))
#define OHCI1394_IsoRcvContextControlClear(n) (0x404 + 32 * (n))
#define OHCI1394_IsoRcvCommandPtr(n) (0x40C + 32 * (n))
#define OHCI1394_IsoRcvContextMatch(n) (0x410 + 32 * (n))
/* Interrupts Mask/Events */
#define OHCI1394_reqTxComplete 0x00000001
#define OHCI1394_respTxComplete 0x00000002
#define OHCI1394_ARRQ 0x00000004
#define OHCI1394_ARRS 0x00000008
#define OHCI1394_RQPkt 0x00000010
#define OHCI1394_RSPkt 0x00000020
#define OHCI1394_isochTx 0x00000040
#define OHCI1394_isochRx 0x00000080
#define OHCI1394_postedWriteErr 0x00000100
#define OHCI1394_lockRespErr 0x00000200
#define OHCI1394_selfIDComplete 0x00010000
#define OHCI1394_busReset 0x00020000
#define OHCI1394_phy 0x00080000
#define OHCI1394_cycleSynch 0x00100000
#define OHCI1394_cycle64Seconds 0x00200000
#define OHCI1394_cycleLost 0x00400000
#define OHCI1394_cycleInconsistent 0x00800000
#define OHCI1394_unrecoverableError 0x01000000
#define OHCI1394_cycleTooLong 0x02000000
#define OHCI1394_phyRegRcvd 0x04000000
#define OHCI1394_masterIntEnable 0x80000000
#define OHCI1394_evt_no_status 0x0
#define OHCI1394_evt_long_packet 0x2
#define OHCI1394_evt_missing_ack 0x3
#define OHCI1394_evt_underrun 0x4
#define OHCI1394_evt_overrun 0x5
#define OHCI1394_evt_descriptor_read 0x6
#define OHCI1394_evt_data_read 0x7
#define OHCI1394_evt_data_write 0x8
#define OHCI1394_evt_bus_reset 0x9
#define OHCI1394_evt_timeout 0xa
#define OHCI1394_evt_tcode_err 0xb
#define OHCI1394_evt_reserved_b 0xc
#define OHCI1394_evt_reserved_c 0xd
#define OHCI1394_evt_unknown 0xe
#define OHCI1394_evt_flushed 0xf
#define OHCI1394_phy_tcode 0xe
#endif /* __fw_ohci_h */
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/*
* Copyright (C) 2003-2006 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 __fw_topology_h
#define __fw_topology_h
enum {
FW_TOPOLOGY_A = 0x01,
FW_TOPOLOGY_B = 0x02,
FW_TOPOLOGY_MIXED = 0x03,
};
enum {
FW_NODE_CREATED = 0x00,
FW_NODE_UPDATED = 0x01,
FW_NODE_DESTROYED = 0x02,
FW_NODE_LINK_ON = 0x03,
FW_NODE_LINK_OFF = 0x04,
};
struct fw_port {
struct fw_node *node;
unsigned speed : 3; /* S100, S200, ... S3200 */
};
struct fw_node {
u16 node_id;
u8 color;
u8 port_count;
unsigned link_on : 1;
unsigned initiated_reset : 1;
unsigned b_path : 1;
u8 phy_speed : 3; /* As in the self ID packet. */
u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on
* the path from the local node to this node. */
u8 max_depth : 4; /* Maximum depth to any leaf node */
u8 max_hops : 4; /* Max hops in this sub tree */
atomic_t ref_count;
/* For serializing node topology into a list. */
struct list_head link;
/* Upper layer specific data. */
void *data;
struct fw_port ports[0];
};
static inline struct fw_node *
fw_node(struct list_head *l)
{
return list_entry(l, struct fw_node, link);
}
static inline struct fw_node *
fw_node_get(struct fw_node *node)
{
atomic_inc(&node->ref_count);
return node;
}
static inline void
fw_node_put(struct fw_node *node)
{
if (atomic_dec_and_test(&node->ref_count))
kfree(node);
}
void
fw_destroy_nodes(struct fw_card *card);
int
fw_compute_block_crc(u32 *block);
#endif /* __fw_topology_h */
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/*
* Copyright (C) 2003-2006 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 __fw_transaction_h
#define __fw_transaction_h
#include <linux/device.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/fs.h>
#include <linux/dma-mapping.h>
#include <linux/firewire-constants.h>
#define TCODE_IS_READ_REQUEST(tcode) (((tcode) & ~1) == 4)
#define TCODE_IS_BLOCK_PACKET(tcode) (((tcode) & 1) != 0)
#define TCODE_IS_REQUEST(tcode) (((tcode) & 2) == 0)
#define TCODE_IS_RESPONSE(tcode) (((tcode) & 2) != 0)
#define TCODE_HAS_REQUEST_DATA(tcode) (((tcode) & 12) != 4)
#define TCODE_HAS_RESPONSE_DATA(tcode) (((tcode) & 12) != 0)
#define LOCAL_BUS 0xffc0
#define SELFID_PORT_CHILD 0x3
#define SELFID_PORT_PARENT 0x2
#define SELFID_PORT_NCONN 0x1
#define SELFID_PORT_NONE 0x0
#define PHY_PACKET_CONFIG 0x0
#define PHY_PACKET_LINK_ON 0x1
#define PHY_PACKET_SELF_ID 0x2
/* Bit fields _within_ the PHY registers. */
#define PHY_LINK_ACTIVE 0x80
#define PHY_CONTENDER 0x40
#define PHY_BUS_RESET 0x40
#define PHY_BUS_SHORT_RESET 0x40
#define CSR_REGISTER_BASE 0xfffff0000000ULL
/* register offsets relative to CSR_REGISTER_BASE */
#define CSR_STATE_CLEAR 0x0
#define CSR_STATE_SET 0x4
#define CSR_NODE_IDS 0x8
#define CSR_RESET_START 0xc
#define CSR_SPLIT_TIMEOUT_HI 0x18
#define CSR_SPLIT_TIMEOUT_LO 0x1c
#define CSR_CYCLE_TIME 0x200
#define CSR_BUS_TIME 0x204
#define CSR_BUSY_TIMEOUT 0x210
#define CSR_BUS_MANAGER_ID 0x21c
#define CSR_BANDWIDTH_AVAILABLE 0x220
#define CSR_CHANNELS_AVAILABLE 0x224
#define CSR_CHANNELS_AVAILABLE_HI 0x224
#define CSR_CHANNELS_AVAILABLE_LO 0x228
#define CSR_BROADCAST_CHANNEL 0x234
#define CSR_CONFIG_ROM 0x400
#define CSR_CONFIG_ROM_END 0x800
#define CSR_FCP_COMMAND 0xB00
#define CSR_FCP_RESPONSE 0xD00
#define CSR_FCP_END 0xF00
#define CSR_TOPOLOGY_MAP 0x1000
#define CSR_TOPOLOGY_MAP_END 0x1400
#define CSR_SPEED_MAP 0x2000
#define CSR_SPEED_MAP_END 0x3000
#define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args)
#define fw_error(s, args...) printk(KERN_ERR KBUILD_MODNAME ": " s, ## args)
#define fw_debug(s, args...) printk(KERN_DEBUG KBUILD_MODNAME ": " s, ## args)
static inline void
fw_memcpy_from_be32(void *_dst, void *_src, size_t size)
{
u32 *dst = _dst;
u32 *src = _src;
int i;
for (i = 0; i < size / 4; i++)
dst[i] = cpu_to_be32(src[i]);
}
static inline void
fw_memcpy_to_be32(void *_dst, void *_src, size_t size)
{
fw_memcpy_from_be32(_dst, _src, size);
}
struct fw_card;
struct fw_packet;
struct fw_node;
struct fw_request;
struct fw_descriptor {
struct list_head link;
size_t length;
u32 immediate;
u32 key;
const u32 *data;
};
int fw_core_add_descriptor(struct fw_descriptor *desc);
void fw_core_remove_descriptor(struct fw_descriptor *desc);
typedef void (*fw_packet_callback_t)(struct fw_packet *packet,
struct fw_card *card, int status);
typedef void (*fw_transaction_callback_t)(struct fw_card *card, int rcode,
void *data,
size_t length,
void *callback_data);
typedef void (*fw_address_callback_t)(struct fw_card *card,
struct fw_request *request,
int tcode, int destination, int source,
int generation, int speed,
unsigned long long offset,
void *data, size_t length,
void *callback_data);
typedef void (*fw_bus_reset_callback_t)(struct fw_card *handle,
int node_id, int generation,
u32 *self_ids,
int self_id_count,
void *callback_data);
struct fw_packet {
int speed;
int generation;
u32 header[4];
size_t header_length;
void *payload;
size_t payload_length;
u32 timestamp;
/*
* This callback is called when the packet transmission has
* completed; for successful transmission, the status code is
* the ack received from the destination, otherwise it's a
* negative errno: ENOMEM, ESTALE, ETIMEDOUT, ENODEV, EIO.
* The callback can be called from tasklet context and thus
* must never block.
*/
fw_packet_callback_t callback;
int ack;
struct list_head link;
void *driver_data;
};
struct fw_transaction {
int node_id; /* The generation is implied; it is always the current. */
int tlabel;
int timestamp;
struct list_head link;
struct fw_packet packet;
/*
* The data passed to the callback is valid only during the
* callback.
*/
fw_transaction_callback_t callback;
void *callback_data;
};
static inline struct fw_packet *
fw_packet(struct list_head *l)
{
return list_entry(l, struct fw_packet, link);
}
struct fw_address_handler {
u64 offset;
size_t length;
fw_address_callback_t address_callback;
void *callback_data;
struct list_head link;
};
struct fw_address_region {
u64 start;
u64 end;
};
extern const struct fw_address_region fw_low_memory_region;
extern const struct fw_address_region fw_high_memory_region;
extern const struct fw_address_region fw_private_region;
extern const struct fw_address_region fw_csr_region;
extern const struct fw_address_region fw_unit_space_region;
int fw_core_add_address_handler(struct fw_address_handler *handler,
const struct fw_address_region *region);
void fw_core_remove_address_handler(struct fw_address_handler *handler);
void fw_fill_response(struct fw_packet *response, u32 *request_header,
int rcode, void *payload, size_t length);
void fw_send_response(struct fw_card *card,
struct fw_request *request, int rcode);
extern struct bus_type fw_bus_type;
struct fw_card {
const struct fw_card_driver *driver;
struct device *device;
struct kref kref;
int node_id;
int generation;
/* This is the generation used for timestamping incoming requests. */
int request_generation;
int current_tlabel, tlabel_mask;
struct list_head transaction_list;
struct timer_list flush_timer;
unsigned long reset_jiffies;
unsigned long long guid;
int max_receive;
int link_speed;
int config_rom_generation;
/*
* We need to store up to 4 self ID for a maximum of 63
* devices plus 3 words for the topology map header.
*/
int self_id_count;
u32 topology_map[252 + 3];
spinlock_t lock; /* Take this lock when handling the lists in
* this struct. */
struct fw_node *local_node;
struct fw_node *root_node;
struct fw_node *irm_node;
int color;
int gap_count;
int topology_type;
int index;
struct list_head link;
/* Work struct for BM duties. */
struct delayed_work work;
int bm_retries;
int bm_generation;
};
struct fw_card *fw_card_get(struct fw_card *card);
void fw_card_put(struct fw_card *card);
/*
* The iso packet format allows for an immediate header/payload part
* stored in 'header' immediately after the packet info plus an
* indirect payload part that is pointer to by the 'payload' field.
* Applications can use one or the other or both to implement simple
* low-bandwidth streaming (e.g. audio) or more advanced
* scatter-gather streaming (e.g. assembling video frame automatically).
*/
struct fw_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];
};
#define FW_ISO_CONTEXT_TRANSMIT 0
#define FW_ISO_CONTEXT_RECEIVE 1
#define FW_ISO_CONTEXT_MATCH_TAG0 1
#define FW_ISO_CONTEXT_MATCH_TAG1 2
#define FW_ISO_CONTEXT_MATCH_TAG2 4
#define FW_ISO_CONTEXT_MATCH_TAG3 8
#define FW_ISO_CONTEXT_MATCH_ALL_TAGS 15
struct fw_iso_context;
typedef void (*fw_iso_callback_t)(struct fw_iso_context *context,
u32 cycle,
size_t header_length,
void *header,
void *data);
/*
* An iso buffer is just a set of pages mapped for DMA in the
* specified direction. Since the pages are to be used for DMA, they
* are not mapped into the kernel virtual address space. We store the
* DMA address in the page private. The helper function
* fw_iso_buffer_map() will map the pages into a given vma.
*/
struct fw_iso_buffer {
enum dma_data_direction direction;
struct page **pages;
int page_count;
};
struct fw_iso_context {
struct fw_card *card;
int type;
int channel;
int speed;
size_t header_size;
fw_iso_callback_t callback;
void *callback_data;
};
int
fw_iso_buffer_init(struct fw_iso_buffer *buffer,
struct fw_card *card,
int page_count,
enum dma_data_direction direction);
int
fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
void
fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, struct fw_card *card);
struct fw_iso_context *
fw_iso_context_create(struct fw_card *card, int type,
int channel, int speed, size_t header_size,
fw_iso_callback_t callback, void *callback_data);
void
fw_iso_context_destroy(struct fw_iso_context *ctx);
int
fw_iso_context_queue(struct fw_iso_context *ctx,
struct fw_iso_packet *packet,
struct fw_iso_buffer *buffer,
unsigned long payload);
int
fw_iso_context_start(struct fw_iso_context *ctx,
int cycle, int sync, int tags);
int
fw_iso_context_stop(struct fw_iso_context *ctx);
struct fw_card_driver {
const char *name;
/*
* Enable the given card with the given initial config rom.
* This function is expected to activate the card, and either
* enable the PHY or set the link_on bit and initiate a bus
* reset.
*/
int (*enable)(struct fw_card *card, u32 *config_rom, size_t length);
int (*update_phy_reg)(struct fw_card *card, int address,
int clear_bits, int set_bits);
/*
* Update the config rom for an enabled card. This function
* should change the config rom that is presented on the bus
* an initiate a bus reset.
*/
int (*set_config_rom)(struct fw_card *card,
u32 *config_rom, size_t length);
void (*send_request)(struct fw_card *card, struct fw_packet *packet);
void (*send_response)(struct fw_card *card, struct fw_packet *packet);
/* Calling cancel is valid once a packet has been submitted. */
int (*cancel_packet)(struct fw_card *card, struct fw_packet *packet);
/*
* Allow the specified node ID to do direct DMA out and in of
* host memory. The card will disable this for all node when
* a bus reset happens, so driver need to reenable this after
* bus reset. Returns 0 on success, -ENODEV if the card
* doesn't support this, -ESTALE if the generation doesn't
* match.
*/
int (*enable_phys_dma)(struct fw_card *card,
int node_id, int generation);
u64 (*get_bus_time)(struct fw_card *card);
struct fw_iso_context *
(*allocate_iso_context)(struct fw_card *card,
int type, size_t header_size);
void (*free_iso_context)(struct fw_iso_context *ctx);
int (*start_iso)(struct fw_iso_context *ctx,
s32 cycle, u32 sync, u32 tags);
int (*queue_iso)(struct fw_iso_context *ctx,
struct fw_iso_packet *packet,
struct fw_iso_buffer *buffer,
unsigned long payload);
int (*stop_iso)(struct fw_iso_context *ctx);
};
int
fw_core_initiate_bus_reset(struct fw_card *card, int short_reset);
void
fw_send_request(struct fw_card *card, struct fw_transaction *t,
int tcode, int node_id, int generation, int speed,
unsigned long long offset,
void *data, size_t length,
fw_transaction_callback_t callback, void *callback_data);
int fw_cancel_transaction(struct fw_card *card,
struct fw_transaction *transaction);
void fw_flush_transactions(struct fw_card *card);
void fw_send_phy_config(struct fw_card *card,
int node_id, int generation, int gap_count);
/*
* Called by the topology code to inform the device code of node
* activity; found, lost, or updated nodes.
*/
void
fw_node_event(struct fw_card *card, struct fw_node *node, int event);
/* API used by card level drivers */
void
fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver,
struct device *device);
int
fw_card_add(struct fw_card *card,
u32 max_receive, u32 link_speed, u64 guid);
void
fw_core_remove_card(struct fw_card *card);
void
fw_core_handle_bus_reset(struct fw_card *card,
int node_id, int generation,
int self_id_count, u32 *self_ids);
void
fw_core_handle_request(struct fw_card *card, struct fw_packet *request);
void
fw_core_handle_response(struct fw_card *card, struct fw_packet *packet);
#endif /* __fw_transaction_h */
+2
View File
@@ -1,6 +1,8 @@
menu "IEEE 1394 (FireWire) support" menu "IEEE 1394 (FireWire) support"
depends on PCI || BROKEN depends on PCI || BROKEN
source "drivers/firewire/Kconfig"
config IEEE1394 config IEEE1394
tristate "IEEE 1394 (FireWire) support" tristate "IEEE 1394 (FireWire) support"
depends on PCI || BROKEN depends on PCI || BROKEN
+28
View File
@@ -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 */
+229
View File
@@ -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 */
+67
View File
@@ -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 */
+8
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@@ -23,6 +23,14 @@ config CRC16
the kernel tree does. Such modules that use library CRC16 the kernel tree does. Such modules that use library CRC16
functions require M here. functions require M here.
config CRC_ITU_T
tristate "CRC ITU-T V.41 functions"
help
This option is provided for the case where no in-kernel-tree
modules require CRC ITU-T V.41 functions, but a module built outside
the kernel tree does. Such modules that use library CRC ITU-T V.41
functions require M here.
config CRC32 config CRC32
tristate "CRC32 functions" tristate "CRC32 functions"
default y default y

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