Use a speed probe to determine the speed over 1394b buses and of nodes
which report a link speed less than their PHY speed.
Log the effective maximum speed of newly created nodes in dmesg.
Also, read the config ROM (except bus info block) at the maximum speed
rather than S100. This isn't a real optimization though because we
still only use quadlet read requests for the entire ROM.
The patch also adds support for S1600 and S3200, although such hardware
does not exist yet.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Drop filenames from file preamble, drop editor annotations and
use standard indent style for block comments.
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (fixed typo)
Make firewire entry points not 'extern':
drivers/firewire/fw-device.c:160:25: warning: function 'fw_device_get' with external linkage has definition
drivers/firewire/fw-device.c:167:13: warning: function 'fw_device_put' with external linkage has definition
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
You don't know what type is used to implement u64.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Instances of struct file_operations and struct fw_card_driver can be
qualified as "const". Ditto with struct fw_descriptor.data, struct
fw_device_id, and predefined instances of struct fw_address_region,
at least in the current implementation.
Data qualified as const is placed into the .rodata section which won't
be mixed with dirty data.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Stefan Richter