This patch cleans up the recently added backlight device support by Holger
Macht <hmacht@suse.de> to fit well with the rest of the code, using the
ibms struct as the other "subdrivers" in ibm-acpi.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch makes it possible to disable ibm-acpi non-generic bay support,
as generic bay support already works well for a number of ThinkPads.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch adds support for the ultrabay on the T60, X60 and other new
ThinkPads that have a SATA ultrabay.
I intend to keep bay and dock support in ibm-acpi working and updated until
it finally gets deprecated and removed in favour of the generic dock and
bay support. But we aren't there yet.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch implements a fan control safety watchdog, by request of the
authors of userspace fan control scripts.
When the watchdog timer expires, the equivalent action of a "fan enable"
command is executed. The watchdog timer is reset at every reception of a
fan control command that could change the state of the fan itself.
This command is meant to be used by userspace fan control daemons, to make
sure the fan is never left set to an unsafe level because of userspace
problems.
Users of the X31/X40/X41 "speed" command are on their own, the current
implementation of "speed" is just too incomplete to be used safely,
anyway. Better to never use it, and just use the "level" command instead.
The watchdog is programmed using echo "watchdog <number>" > fan, where
number is the number of seconds to wait before doing an "enable", and zero
disables the watchdog.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
A few ThinkPads fail to initialize EC register 0x2f both in the EC
firmware and ACPI DSDT. If the BIOS and the ACPI DSDT also do not
initialize it, then the initial status of that register does not
correspond to reality.
On all reported buggy machines, EC 0x2f will read 0x07 (fan level 7) upon
cold boot, when the EC is actually in mode 0x80 (auto mode). Since
returning a text string ("unknown") would break a number of userspace
programs, instead we correct the reading for the most probably correct
answer, and return it is in auto mode.
The workaround flags the status and level as unknown on module load/kernel
boot, until we are certain at least one fan control command was issued,
either by us, or by something else.
We don't work around the bug by doing a "fan enable" at module
load/startup (which would initialize the EC register) because it is not
known if these ThinkPad ACPI DSDT might have set the fan to level 7
instead of "auto" (we don't know if they can do this or not) due to a
thermal condition, and we don't want to override that, should they be
capable of it.
We should be setting the workaround flag to "status known" upon resume, as
both reports and a exaustive search on the DSDT tables at acpi.sf.net show
that the DSDTs always enable the fan on resume, thus working around the
bug. But since we don't have suspend/resume handlers in ibm-acpi yet and
the "EC register 0x2f was modified" logic is likely to catch the change
anyway, we don't.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch changes the ThinkPad Embedded Controller DMI matching
code to store the firmware version of the EC for later usage, e.g.
for quirks.
It also prints the firmware version when starting up.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch extend fan control functions, implementing enable/disable for
all write access modes, implementing level control for all level-capable
write access modes.
The patch also updates the documentation, explaining levels auto and
disengaged.
ABI changes:
1. Support level 0 as an equivalent to disable
2. Add support for level auto and level disengaged when doing
EC 0x2f fan control
3. Support enable/disable for all level-based write access modes
4. Add support for level command on FANS thinkpads, as per
thinkwiki reports
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch fix fan enable to attempt to do the right thing and not slow
down the fan if it is forced to the maximum speed. It also extends fan
enable to work on older thinkpads.
ABI changes:
1. Support enable/disable for all level-based write access modes
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch fixes fan_read to return correct values for all fan access
modes. It also implements some fan access mode status output that was
missing, and normalizes the proc fan abi to return consistent data across
all fan read/write modes.
Userspace ABI changes and extensions:
1. Return status: enable/disable for *all* modes
(this actually improves compatibility with userspace utils!)
2. Return level: auto and level: disengaged for EC 2f access mode
3. Return level: <number> for EC 0x2f access mode
4. Return level 0 as well as "disabled" in level-aware modes
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch cleans up fan_write so that it is much easier to read and
extend. It separates the proc api handling from the operations themselves.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch breaks fan_read mechanics into a generic function to get fan
status and speed, and leaves only the procfs interface code in fan_read.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch cleans up fan_read so that it is much easier to read and
extend.
The patch fixes the userspace ABI to return "status: not supported" (like
all other ibm-acpi functions) when neither fan status or fan control are
possible.
It also fixes the userspace ABI to return EIO if ACPI access to the EC
fails, instead of returning "status: unreadable" or "speed: unreadable".
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch lays some groundwork for a fan_read and fan_write cleanup in the
next patches. To do so, it provides a new fan_init initializer, and also some
constants (through enums).
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
The A31 has a very atypical layout, so I separated its thermal sensors
location in a separate patch.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch extends ibm-acpi to support reading thermal sensors directly
through ACPI EC register access. It uses a DMI match to detect ThinkPads
with a new-style embedded controller, that are known to have forward-
compatible register maps and use 0x00 to fill in non-used registers and
export thermal sensors at EC offsets 0x78-7F and 0xC0-C7.
Direct ACPI EC register access is implemented for 8-sensor and 16-sensor
new-style ThinkPad controller firmwares as an experimental feature. The
code does some limited sanity checks on the temperatures read through EC
access, and will default to the old ACPI TMP0-7 mode if anything is amiss.
Userspace ABI is not changed for 8 sensors, but /proc/acpi/ibm/thermal is
extended for 16 sensors if the firmware supports 16 sensors.
A documentation update is also provided.
The information about the ThinkPad register map was determined by studying
ibm-acpi "ecdump" output from various ThinkPad models, submitted by
subscribers of the linux-thinkpad mailinglist. Futher information was
gathered from the DSDT tables, as they describe the EC register map in
recent ThinkPads.
DSDT source shows that TMP0-7 access and direct register access are
actually the same thing on these firmwares, but unfortunately IBM never
did update their DSDT EC register map to export TMP8-TMP15 for the second
range of sensors.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
This patch consolidades all decisions regarding the strategy to be used to
read thinkpad thermal sensors into a single enum, and refactors the
thermal sensor reading code to use a much more readable (and easier to
extend) switch() construct, in a separate function.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
ibm-acpi uses sub-device names like ibm/hotkey, which get in the way of
a sysfs conversion. Fix it to use ibm_hotkey instead. Thanks to Zhang
Rui for noticing this.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Add DRM_PCI_BUFFER_RO flag for mapping PCI DMA buffer read-only. An additional
flag is needed, since PCI DMA buffers do not have an associated map.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Add support for DRM_VBLANK_NEXTONMISS.
Bump minor for swap scheduling ioctl and secondary vblank support.
Avoid mis-counting vblank interrupts when they're only enabled for pipe A.
Only schedule vblank tasklet if there are scheduled swaps pending.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Initialize it to default value if it hasn't been set by the X server yet.
In i915_vblank_pipe_set(), only update dev_priv->vblank_pipe and call
i915_enable_interrupt() if the argument passed from userspace is valid to avoid
corrupting dev_priv->vblank_pipe on invalid arguments.
Signed-off-by: Dave Airlie <airlied@linux.ie>
of pipe number.
Handle relative as well as absolute target sequence numbers.
Return error if target sequence has already passed, so userspace can deal with
this situation as it sees fit.
On success, return the sequence number of the vertical blank when the buffer
swap is expected to take place.
Also add DRM_IOCTL_I915_VBLANK_SWAP definition for userspace code that may want
to use ioctl() instead of drmCommandWriteRead().
Signed-off-by: Dave Airlie <airlied@linux.ie>
This uses the core facility to schedule a driver callback that will be called
ASAP after the given vertical blank interrupt with the HW lock held.
Signed-off-by: Dave Airlie <airlied@linux.ie>
It looks like this would have caused signals to always get sent on the next
vertical blank, regardless of the sequence number.
Signed-off-by: Dave Airlie <airlied@linux.ie>
When this flag is set and the target sequence is missed, wait for the next
vertical blank instead of returning immediately.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Initialize the spinlock unconditionally when struct drm_device is filled in,
and return early in drm_locked_tasklet() if the driver doesn't support IRQs.
Signed-off-by: Dave Airlie <airlied@linux.ie>
This makes it easier for userspace to know when it needs to allocate an ID.
Also free drawable information memory when it's no longer needed.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Actually make the existing ioctls for adding and removing drawables do
something useful, and add another ioctl for the X server to update drawable
information. The only kind of drawable information tracked so far is cliprects.
Only reallocate cliprect memory if the number of cliprects changes.
Also improve diagnostic output.
hook up drm ioctl update draw
export drm_get_drawable_info symbol
Signed-off-by: Dave Airlie <airlied@linux.ie>
When the vertical blank interrupt is enabled for both pipes, pipe A is
considered primary and pipe B secondary. When it's only enabled for one pipe,
it's always considered primary for backwards compatibility.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Disables auditing in ipsec when CONFIG_AUDITSYSCALL is
disabled in the kernel.
Also includes a bug fix for xfrm_state.c as a result of
original ipsec audit patch.
Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
An audit message occurs when an ipsec SA
or ipsec policy is created/deleted.
Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/irda/irlan_filter.h:31: warning: 'struct seq_file' declared inside parameter list
include/net/irda/irlan_filter.h:31: warning: its scope is only this definition or declaration, which is probably not what you want
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We must reserve SAR + MAX_HEADER bytes for IrLMP to fit in.
Patch from Jeet Chaudhuri <jeetlinux@yahoo.co.in>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
pxaficp_ir.c was not converted to the device model framework.
Signed-off-by: Paul Sokolovsky <pmiscml@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The command flags for dump and do were swapped..
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a pointer to the OSDL wiki page on Generic Netlink.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When user builds IPv6 header and send it through raw socket, kernel
tries to release unlocked sock. (Kernel log shows
"BUG: bad unlock balance detected" with enabled debug option.)
The lock is held only for non-hdrincl sock in this function
then this patch fix to do nothing about lock for hdrincl one.
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit "[IPV6]: Use kmemdup" (commit-id:
af879cc704) broke IPv6 fragments.
Bug was spotted by Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
