Commit Graph

165 Commits

Author SHA1 Message Date
Kristian Høgsberg 0fc7d6e4f4 firewire: Do an agent reset on error recovery.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

(Reverted part which moved it from eh_abort_handler to eh_host_reset_handler)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-12 01:28:13 +02:00
Kristian Høgsberg 12f26aa1b1 firewire: Only free ORBs that completed the initial transaction.
In some situations we can receive the ORB status write before we
have received the ORB pointer write response.  When this happens,
we assume that the fw_transaction is finished and free the ORB
struct containing the fw_transaction.

This fix make the status write logic only accept status writes
for ORBs where the initial ORB pointer write transaction finished.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-12 00:18:57 +02:00
Kristian Høgsberg fbb5423c1d firewire: Forward SAM status codes to the scsi stack.
Or the SAM status codes from the device sense data into the
command error code.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-12 00:18:57 +02:00
Kristian Høgsberg 053b30808f firewire: Check for CONTEXT_RUN not CONTEXT_ACTIVE when starting AT DMA context.
Doh, bad typo...

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-12 00:18:57 +02:00
Kristian Høgsberg 15536221d1 firewire: Byteswap iso header so all headers are presented as be32.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-04-12 00:18:57 +02:00
Kristian Høgsberg 8a2f7d932f firewire: Fix start on cycle 0 for IT, implement start on cycle for IR.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:37:54 +02:00
Kristian Høgsberg ef370ee74b firewire: Fix the range check for the queue_iso payload pointer.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (renamed a variable)
2007-03-28 21:30:16 +02:00
Kristian Høgsberg c5dfd0a5b0 firewire: Increase the number of config rom retries and the retry delay.
Some devices have a really long power-on cycle, and we fail to
successfully probe these if they're plugged in and then turned on.

There's really no down-side to bumping the number of retries and the
retry delay, and most devices will get picked up within the first couple
of retries anyway.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:30:16 +02:00
Kristian Høgsberg 93e4fd455c firewire: Don't set card->irm_node before we have a new valid topology.
In case the topology build fails, we want to retain the old topology
info until another reset finishes and results in a valid new tree.  If
we clear card->irm_node to NULL and the topology build fails, we end up
dereferencing a NULL pointer in a few places.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:30:15 +02:00
Kristian Høgsberg 3964a4496e firewire: Generalize resource tracking for cdev implementation.
Generalize the way we keep track of the various resources and
assign a unique handle to each resource.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:30:15 +02:00
Kristian Høgsberg 66dea3e5f6 firewire: Add ioctls to add and remove config rom descriptors.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (fixed whitespace)
2007-03-28 21:30:14 +02:00
Kristian Høgsberg da8ecffaed firewire: Streamline userspace interface structs.
Make event struct layout common part include the closure and add a
union for all event types; provide a mechanism for setting the
bus reset event closure.

Shuffle struct fw_cdev_queue_iso fields around to be 64-bit safe.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:30:14 +02:00
Kristian Høgsberg 20d1167311 firewire: Remember to set the driver_data pointer when queueing a packet.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:30:14 +02:00
Kristian Høgsberg 6f2e53d513 firewire: Use device->groups for adding device attributes.
We dynamically create an attribute group for the key present on the
device in hand and point device->group to it.  This way the device
core adds the sysfs attributes for us as the device is added.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-28 21:30:13 +02:00
Marc Butler ecab413359 firewire: Add phy register defines.
Signed-off-by: Marc Butler <marc@adaptivecode.com>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added whitespace)
2007-03-24 23:29:19 +01:00
Kristian Høgsberg bbd1494580 firewire: Export GUID as sysfs attribute.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-22 00:48:50 +01:00
Kristian Høgsberg 7feb9cce2d firewire: Add sysfs attributes for config rom directory values.
We export the entire config rom, so this is technically redundant,
but should make udev rules and HAL integration easier.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-22 00:48:50 +01:00
Kristian Høgsberg 21351dbe4e firewire: Make use of struct device_type.
The device_type struct is useful for setting attributes for a device
and overriding .release and .uevent for a group of devices.  This patch
uses it this way to clean up the sysfs code a bit.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-22 00:48:49 +01:00
Stefan Richter 945ac22253 firewire: ROM cache is CPU-endian
Puts a stray endian annotation down.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-20 23:27:19 +01:00
Stefan Richter d84702a5d7 firewire: fix compiler warnings on 64bit
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-20 23:27:19 +01:00
Stefan Richter 633c52dccd firewire: add includes for sem and rw_sem
as a precaution.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-20 23:27:19 +01:00
Kristian Høgsberg 015b066f4e firewire: Grab dev->sem when doing the update callback.
This serializes the update callback with the probe and remove callback from
the driver core and prevents remove from being called while update is
running for the same device.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-20 23:27:19 +01:00
Stefan Richter 11f494ee25 firewire: rename CONFIG_FW to CONFIG_FIREWIRE
to avoid confusion with CONFIG_FW_LOADER.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>
2007-03-20 23:27:19 +01:00
Kristian Høgsberg b3d6e15114 firewire: Add ref-counting for sbp2_device and hold a ref while we have work scheduled.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-15 18:27:40 +01:00
Kristian Høgsberg 7e35f7f318 firewire: Free pending transactions on cdev release.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-15 18:21:36 +01:00
Kristian Høgsberg 693b902176 firewire: Zero out sd->scsi_host if we fail to register with the SCSI stack.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-15 18:21:36 +01:00
Kristian Høgsberg 9472316b6e firewire: Implement deallocation of address ranges.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-15 18:21:36 +01:00
Kristian Høgsberg eb0306eac0 firewire: Move sync and tag parameters to start_iso ioctl.
Setting these at create_context time or start_iso time doesn't matter
much, but raw1394 sets them at start_iso time so that will be easier to
emulate this way.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-15 18:21:36 +01:00
Kristian Høgsberg c70dc788fd firewire: Fix dualbuffer iso receive mode and drop buffer fill mode.
The dualbuffer DMA setup did not account for the iso trailer word
and thus didn't  work correctly.  With this fixed we can drop the
dual buffer fallback mode.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-15 18:21:36 +01:00
Kristian Høgsberg d60d7f1d5c firewire: Implement CSR cycle time and bus time registers.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:15 +01:00
Kristian Høgsberg 473d28c730 firewire: Implement topology map and fix a couple of loopback bugs.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:14 +01:00
Kristian Høgsberg 7c6e647da0 firewire: Export juju specific rcodes to user space.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:14 +01:00
Kristian Høgsberg 97e3527538 firewire: Add generation field to send_request ioctl struct.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:13 +01:00
Kristian Høgsberg e7533505fe firewire: Add card index field to get_info cdev ioctl struct.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:13 +01:00
Kristian Høgsberg 8fbdbb3683 firewire: Fix order of arguments for iso context creation.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:12 +01:00
Kristian Høgsberg 28cf6a04c8 firewire: Track pending transactions and cancel them on cdev release.
Without this, pending transactions will dereference freed memory
if they complete after the device file has been closed.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:12 +01:00
Kristian Høgsberg f319b6a02f firewire: Move async transmit to use the general context code.
The old async transmit context handling was starting and stopping
DMA for every packet transmission.  This could cause silently failing
packet transmission, if the DMA was reprogrammed too close to being
stopped.

The general context code keeps DMA running at all times and fixes this
problem.  It's also a nice cleanup.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:11 +01:00
Kristian Høgsberg 2603bf219e firewire: Use only a wait queue and terminate poll and read on device removal.
Drop the event list semaphore and only use the wait queue and the list
to synchronize queue access.  Break out of a poll or read whenever
the device is disconnected.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:11 +01:00
Kristian Høgsberg 2aaad97be6 firewire: Don't time out command orbs, leave that to the scsi stack.
The mod_timer based timing out of orb was a little to agressive and
would time out legit, but long-lived scsi cmds.  Besides, the scsi
stack keeps track of this already.  Since we're only timing out
management orbs, go back to wait_for_completion_timeout.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:10 +01:00
Kristian Høgsberg 048961ef90 firewire: Add rom_index attribute for unit sysfs directories.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:10 +01:00
Kristian Høgsberg 5c5539d8cd firewire: Quiet down fw-sbp2 logging a bit, remove stale FIXME.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:09 +01:00
Kristian Høgsberg a3aca3dabb firewire: Switch cdev code over to use register_chrdev and keep a list of devices.
The old mechanism kept a struct cdev for each fw device, but fops->release
would reference this struct after the device got freed in some cases.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:09 +01:00
Kristian Høgsberg 344bbc4de1 firewire: Generalize get_config_rom to get_info.
Repurpose the get_config_rom ioctl to a general get_info ioctl.
This ioctl is now used for version negotiation, and optionally
returns the config rom, and the current bus info.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:08 +01:00
Kristian Høgsberg 5371842b72 firewire: Implement ioctl to initiate bus reset.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:08 +01:00
Kristian Høgsberg 97bd9efa5a firewire: Add a bus reset event type for fw-device-cdev.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:08 +01:00
Kristian Høgsberg 1da0c93b31 firewire: Only use INIT_DELAYED_WORK for first initialization.
Use PREPARE_DELAYED_WORK to just change the function pointer.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:07 +01:00
Kristian Høgsberg 5f48047756 firewire: Iterate through units in a keventd callback for update callbacks.
We can't take the klist lock for the child device list in interrupt
context.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:07 +01:00
Kristian Høgsberg e254a4b45f firewire: Clear all interrupt bits before shutting down.
Some flaky controllers doesn't honor the masterIntEnable bits
and can generate bus reset events even if that bit is cleared.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:06 +01:00
Kristian Høgsberg 49e1179b16 firewire: Drop the unused fw_card device.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:06 +01:00
Kristian Høgsberg 937f687969 firewire: Let an fw_descriptor specify a leading immediate key/value pair.
This lets us break out "Juju" as the model name in the config rom.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:05 +01:00
Thomas Gleixner 65efffa8f0 firewire: Scheduled removal of SA_xxx interrupt flags fixups 3
The obsolete SA_xxx interrupt flags have been used despite the scheduled
removal.  Fixup the remaining users in -mm.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:05 +01:00
Stefan Richter 373b2edd86 firewire: adjust whitespace
Remove space before tab and trailing whitespace.
Unify indentation of goto target labels.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:04 +01:00
Kristian Høgsberg 98b6cbe83b firewire: Implement sync and tag matching for isochronous receive.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:04 +01:00
Kristian Høgsberg 21efb3cfc6 firewire: Configure channel and speed at context creation time.
We need the channel number as we queue up iso packets for transmission
so we can fill out the header correctly.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:03 +01:00
Kristian Høgsberg e364cf4e0a firewire: Store OHCI version and make sure we have at least 1.1 before doing dualbuffer.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:03 +01:00
Kristian Høgsberg 68be3fa15a firewire: Get zeroed out pages for mapping to user space.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:02 +01:00
Kristian Høgsberg cb2d2cdbc6 firewire: Don't touch DMA descriptors after appending.
When a DMA descriptor is appended to the context we sync it for
DMA and the device might potentially read it immediately.  So,
we can't set the IRQ bits in the descriptor after appending.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:02 +01:00
Kristian Høgsberg d2746dc192 firewire: Use a buffer fill descriptor for receive when header size is 0.
When the DMA is setup to not strip any headers, we need to use
the buffer fill descriptor instead of the dual buffer, since the
dual buffer descriptor must strip a non-zero number of header quadlets.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:01 +01:00
Kristian Høgsberg 1e1d196bf5 firewire: Set correct buffer lengths for dualbuffer DMA descriptor.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:01 +01:00
Kristian Høgsberg 9b32d5f307 firewire: Acummulate received iso headers and send them back to user space.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:00 +01:00
Kristian Høgsberg 500be7251a firewire: Log OHCI chipset version in PCI probe.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:03:00 +01:00
Kristian Høgsberg b82956685a firewire: Implement functionality to stop isochronous DMA contexts.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:59 +01:00
Kristian Høgsberg 69cdb7268c firewire: Rename 'send_iso' to 'start_iso'.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:59 +01:00
Kristian Høgsberg 295e3feb92 firewire: Implement basic isochronous receive functionality.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:58 +01:00
Kristian Høgsberg 30200739e6 firewire: Generalize the iso transmit descriptor buffer logic.
The descriptor circular buffer logic used for iso transmission is
useful for async transmit too, so pull the sharable logic out in
a few standalone functions.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:58 +01:00
Kristian Høgsberg 9aad812538 firewire: Split the iso buffer out from fw_iso_context and avoid vmalloc.
This patch splits out the iso buffer so we can initialize it at mmap
time with the size provided in the mmap call.  Furthermore, allocate
the backing pages using alloc_page to avoid setting up kernel side
virtual memory mappings for the pages.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:57 +01:00
Kristian Høgsberg 6e2e8424d3 firewire: Use correct payload pointer when demarshalling incoming requests.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:57 +01:00
Kristian Høgsberg c889475fb5 firewire: Read the *Clear versions of the iso interrupt register.
The *Clear registers returns the masked value when read which is
what we want.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:56 +01:00
Kristian Høgsberg cbb59da719 firewire: Fix another typo from the bitfield conversion.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:56 +01:00
Kristian Høgsberg 82eff9db7d firewire: Use dma_mapping_error() for checking for DMA mapping errors.
Pointed out by Pete Zaitcev.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:55 +01:00
Kristian Høgsberg 27a15e50fb firewire: Credit the old sbp2.c driver for being a good starting point.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:55 +01:00
Kristian Høgsberg bbf19db37e firewire: Use atomic_t's for serial numbers.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

Use atomic_inc_return.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:54 +01:00
Kristian Høgsberg 362c2c8ca4 firewire: Spell out fw as firewire in sysfs.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:54 +01:00
Kristian Høgsberg 374a003928 firewire: Complete SCSI commands with DID_BUS_BUSY when a bus reset happens.
This lets the SCSI stack retry the command when a SCSI command is
interrupted by a FireWire bus reset.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:53 +01:00
Kristian Høgsberg 993baca3dd firewire: Schedule topology work before calling driver update functions.
This prevents superfluous bus traffic as fw-sbp2 logs in only to
get kicked off the device by another bus reset as the driver core
does bus management.  Scheduling it this way lets the driver core
finish bus management before higher level drivers get the update
callback.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:53 +01:00
Kristian Høgsberg 7f37c426c6 firewire: Introduce a retry mechanism for reconnects and logins.
Sometimes we reconnect too soon, sometimes too late.  Adding a retry
mechanism make the reconnect step much more robust.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:52 +01:00
Kristian Høgsberg 1d3d52c536 firewire: fw-sbp2: Do ORB timeout right.
When a management ORB times out, either because the fw_transaction
times out or when we don't get the status write, we need to properly
cancel the entire operation.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:52 +01:00
Kristian Høgsberg 730c32f58b firewire: Implement proper transaction cancelation.
Drivers such as fw-sbp2 had no way to properly cancel in-progress
transactions, which could leave a pending transaction or an unset
packet in the low-level queues after kfree'ing the containing
structure. fw_cancel_transaction() lets drivers cancel a submitted
transaction.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:51 +01:00
Kristian Høgsberg 72e318e07e firewire: Reduce some redundant register definitions.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:51 +01:00
Kristian Høgsberg 32b46093a0 firewire: Rework async receive DMA.
The old DMA program for receiving async packets stops DMA while
processing received packets and only expects one packet per
interrupt.  Stopping DMA can silently drop packets and we need to
handle multiple received packets per interrupt.

This new version keeps DMA running at all times and just append new
pages as buffers fill up, and supports multiple packets per interrupt.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:50 +01:00
Stefan Richter 641f8791f0 firewire: use atomic type for fw_device.state
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:49 +01:00
Kristian Høgsberg 0edeefd99f firewire: Make sure we wait for DMA to stop before we reprogram it.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:49 +01:00
Kristian Høgsberg 931c4834c8 firewire: Implement compliant bus management.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:48 +01:00
Kristian Høgsberg 9fc82689bf firewire: Fix bit shift typo.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:48 +01:00
Kristian Høgsberg e5f49c3b83 firewire: Sanitize send error codes.
Drop the negative errnos and use RCODEs for all error codes
in the complete transaction callback.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:47 +01:00
Kristian Høgsberg 93c4cceb96 firewire: Handle access to CSR resources on local node.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:47 +01:00
Kristian Høgsberg 746083d86c firewire: Add lock transaction opcodes to fw-device-cdev.h.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:47 +01:00
Kristian Høgsberg 36bfe49d07 firewire: Clean up response handling.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:46 +01:00
Kristian Høgsberg e636fe2576 firewire: Loop requests to the host controller back into the stack.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:46 +01:00
Kristian Høgsberg 2639a6fb26 firewire: Use struct fw_packet for incoming packets too in controller interface.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:45 +01:00
Stefan Richter 748086eb53 firewire: fix compilation with gcc 3.4
drivers/firewire/fw-topology.c: In function `report_found_node':
drivers/firewire/fw-topology.c:345: error: `typeof' applied to a bit-field
drivers/firewire/fw-topology.c:345: error: `typeof' applied to a bit-field

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:45 +01:00
Kristian Høgsberg 83db801ce8 firewire: Implement gap count optimization.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:44 +01:00
Stefan Richter cfb01381f4 firewire: fw-sbp2: set command set related device flags
Copied from sbp2:
  - enable spin-up by START STOP UNIT for all devices
  - enable INQUIRY (36) workaround on demand
  - prefer READ/ WRITE (10) over (6) for all devices
  - prefer MODE SENSE (10) for MMC devices

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:44 +01:00
Stefan Richter 907293d788 firewire: consistent usage of node_id
Definitions as per IEEE 1212 and IEEE 1394:

     Node ID: Concatenation of bus ID and local ID. 16 bits long.
      Bus ID: Identifies a particular bus within a group of buses
              interconnected by bus bridges.
    Local ID: Identifies a particular node on a bus.
      PHY ID: Local ID of IEEE 1394 nodes. 6 bits long.

Never ever use a variable called node_id for anything else than a node ID.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-09 22:02:43 +01:00
Stefan Richter 366f5f4fa3 firewire: fw-ohci: remove unnecessary macro
Cleans up after patch "Add PCI class ID for firewire OHCI controllers".

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-09 22:02:43 +01:00
Stefan Richter 02af8e70cb firewire: fw-sbp2: remove unused macro
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-09 22:02:42 +01:00
Stefan Richter 5fa1580d2d firewire: fw-sbp2: remove bogus "emulated" host flag
There is no emulation going on here too.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-09 22:02:42 +01:00
Stefan Richter 6cad95fe97 firewire: fix failure path in ohci_enable_phys_dma
"goto out" happens with the lock taken.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-09 22:02:41 +01:00
Stefan Richter 5af4e5eab3 firewire: comma after last enum item or initializer
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-09 22:02:41 +01:00
Stefan Richter 5e20c28218 firewire: whitespace adjustments
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-03-09 22:02:40 +01:00