Commit Graph

176619 Commits

Author SHA1 Message Date
Derek
81afda5182 V4L/DVB (13578): [PATCH] fix genpix driver (no 8psk lock).
Genpix is demodulating DVB-S-like signal with 8PSK modulation used) -
this non-standard behaviour was broken by rejecting 8PSK in a standard
DVB-S tune request. This problem is fixed by simply reverting back to
the drivers original behavior with this patch.

Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:14 -02:00
Akihiro Tsukada
0e2f0d348a V4L/DVB (13577): [PATCH] dvb-usb-friio: accept center-shifted frequency
This patch adds a fix to accept frequency with its center shifted.

The driver used to accept center frequencies of the normal UHF band channels,
but in ISDB-T, center frequency is shifted with 1/7MHz.
It was shifted internally in the driver,
but this patch enables to accept both types of frequency.

Signed-off-by: Akihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:12 -02:00
Mauro Carvalho Chehab
05395a3d86 V4L/DVB (13576): ir-common: fix an oops caused by the usage of an initialized drvdata
As reported by Sander Eikelenboom <linux@eikelemboon.it>:

> Tried to update my v4l-dvb modules today, but got a bug with my pinnacle
> card, seems to be related to the recent changes in the ir code.
>
> Dec  5 23:30:25 security kernel: [    5.735698] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
> Dec  5 23:30:25 security kernel: [    5.735716] IP: [<ffffffffa00997be>] :ir_common:ir_input_free+0x26/0x3e

Thanks-to: Sander Eikelenboom <linux@eikelemboon.it> for reporting and testing the fix.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:09 -02:00
Mauro Carvalho Chehab
b779974bdf V4L/DVB (13575): em28xx: Use the complete address/command RC5 code for WinTV USB2
This device uses an i2c chip to retrieve the keycode from a RC5 remote.
Instead of just getting 6 bits, improve the routine to get 11 bits.

This means that the complete RC5 table for Hauppauge Grey IR can be used
with this device.

Unfortunately, it seems that this IR receiver is not capable of getting
the full 14 (or 13 bits) from the RC5 protocol.

At lest now, with the new code, it is possible to replace this IR table
by another RC5 table.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:07 -02:00
Hans Verkuil
b33f5f8af3 V4L/DVB (13573): v4l2-spec: updated revision history, updated version to 2.6.33.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:05 -02:00
Muralidharan Karicheri
007701e2c4 V4L/DVB (13572): v4l2-spec: Digital Video Timings API documentation
This patch updates the v4l2-dvb documentation for the new video timings API added.
Also updated the document based on comments from Hans Verkuil.

Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:04 -02:00
Muralidharan Karicheri
b6456c0cfe V4L/DVB (13571): v4l: Adding Digital Video Timings APIs
This adds the above APIs to the v4l2 core. This is based on version v1.2
of the RFC titled "V4L - Support for video timings at the input/output interface"
Following new ioctls are added:-

        - VIDIOC_ENUM_DV_PRESETS
        - VIDIOC_S_DV_PRESET
        - VIDIOC_G_DV_PRESET
        - VIDIOC_QUERY_DV_PRESET
        - VIDIOC_S_DV_TIMINGS
        - VIDIOC_G_DV_TIMINGS

Please refer to the RFC for the details. This code was tested using vpfe
capture driver on TI's DM365. Following is the test configuration used :-

Blu-Ray HD DVD source -> TVP7002 -> DM365 (VPFE) ->DDR

A draft version of the TVP7002 driver (currently being reviewed in the mailing
list) was used that supports V4L2_DV_1080I60 & V4L2_DV_720P60 presets.

A loopback video capture application was used for testing these APIs. This calls
following IOCTLS :-

 -  verify the new v4l2_input capabilities flag added
 -  Enumerate available presets using VIDIOC_ENUM_DV_PRESETS
 -  Set one of the supported preset using VIDIOC_S_DV_PRESET
 -  Get current preset using VIDIOC_G_DV_PRESET
 -  Detect current preset using VIDIOC_QUERY_DV_PRESET
 -  Using stub functions in tvp7002, verify VIDIOC_S_DV_TIMINGS
    and VIDIOC_G_DV_TIMINGS ioctls are received at the sub device.
 -  Tested on 64bit platform by Hans Verkuil

Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:03 -02:00
Michael Krufky
20d15a200d V4L/DVB (13569): smsusb: add autodetection support for five additional Hauppauge USB IDs
Add support for five new Hauppauge Device USB IDs:

2040:b980
2040:b990
2040:c010
2040:c080
2040:c090

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:02 -02:00
Jean-Francois Moine
ecb7768686 V4L/DVB (13567): gspca - sunplus/stk014: Propagate errors to higher level.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:02 -02:00
Jean-Francois Moine
8c4ebae45f V4L/DVB (13566): gspca - main: New variable usb_err for USB exchanges.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:01 -02:00
Jean-Francois Moine
c4322bfca8 V4L/DVB (13565): gspca - pac7302: One more webcam is upside-down by default.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:01 -02:00
Antonio Ospite
28ffe77fe2 V4L/DVB (13564): gspca - main: Implement vidioc_enum_frameintervals.
Some drivers support multiple frameintervals (framerates), make gspca able to
enumerate them.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:00 -02:00
Jean-Francois Moine
7bd330b44e V4L/DVB (13563): gspca - zc3xx: Bad sensor probe of the webcam 0ac8:305b.
- probe the webcam (probe sequence from ms-win trace)
- update tax5130c init sequences from ms-win newer driver
- update tas5130c sequences from ms-win trace
- add some comments in the probe code

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:18:00 -02:00
Jean-Francois Moine
116dc5c50a V4L/DVB (13562): gspca - doc: Update webcam list.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:59 -02:00
Márton Németh
747c710098 V4L/DVB (13561): gspca - main: Remove unnecessary set to alternate 0.
Calling gspca_set_alt0() in gspca_dev_probe() is not needed as gspca_set_alt0()
will do nothing because gspca_dev->alt is always zero at that time.

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:59 -02:00
Jean-Francois Moine
d50e257ee8 V4L/DVB (13560): gspca - main: Cleanup source.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:58 -02:00
Jean-Francois Moine
fe2b603251 V4L/DVB (13559): gspca - pac7302: Some webcams are upside-down by default.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:58 -02:00
Laurent Pinchart
327ae59757 V4L/DVB (13557): v4l: Remove unneeded video_device::minor usage in drivers
The video_device::minor field is used where it shouldn't, either to

- test for error conditions that can't happen anymore with the current
  v4l-dvb core,
- store the value in a driver private field that isn't used anymore,
- check the video device type where video_device::vfl_type should be
  used, or
- create the name of a kernel thread that should get a stable name.

Remove or fix those use cases.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:58 -02:00
Laurent Pinchart
46b21094ce V4L/DVB (13556): v4l: Remove unneeded video_device::minor assignments
Now that the video_device registration is tested using
video_is_registered(), drivers don't need to initialize the
video_device::minor field to -1 anymore.

Remove those unneeded assignments.

[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:57 -02:00
Laurent Pinchart
50462eb065 V4L/DVB (13555): v4l: Use video_device_node_name() instead of the minor number
Instead of using the minor number in kernel log messages, use the device
node name as returned by the video_device_node_name() function. This
makes debug, informational and error messages easier to understand for
end users.

[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:57 -02:00
Laurent Pinchart
63b0d5ad20 V4L/DVB (13554a): v4l: Use the video_drvdata function in drivers
Fix all device drivers to use the video_drvdata function instead of
maintaining a local list of minor to private data mappings. Call
video_set_drvdata to register the driver private pointer when not
already done.

Where applicable, the local list of mappings is completely removed when
it becomes unused.

[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:56 -02:00
Laurent Pinchart
f0813b4c9f V4L/DVB (13553): v4l: Use the video_is_registered function in device drivers
Fix all device drivers to use the video_is_registered function instead
of checking video_device::minor.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:56 -02:00
Laurent Pinchart
957b4aa9f7 V4L/DVB (13552): v4l: Replace video_is_unregistered with video_is_registered
Replace the video_is_unregistered function by a video_is_registered
function. The V4L2_FL_UNREGISTERED flag is replaced by a
V4L2_FL_REGISTERED flag.

This change makes the video_is_registered function return coherent
results when called on an initialize but not yet registered video_device
instance. The function can now be used instead of checking
video_device::minor.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:55 -02:00
Laurent Pinchart
0fda5d4420 V4L/DVB (13551): v4l: Remove video_device::num usage from device drivers
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:55 -02:00
Laurent Pinchart
38c7c03603 V4L/DVB (13550): v4l: Use the new video_device_node_name function
Fix all device drivers to use the new video_device_node_name function.

This also strips kernel log messages from the "/dev/" prefix, has the device
node location is a userspace policy decision unknown to the kernel.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:55 -02:00
Laurent Pinchart
eac8ea536a V4L/DVB (13549): v4l: Add video_device_node_name function
Many drivers access the device number (video_device::v4l2_devnode::num)
in order to print the video device node name. Add and use a helper
function to retrieve the video_device node name.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:54 -02:00
Hans Verkuil
a3a9e287da V4L/DVB (13547): radio: add trivial checks on the tuner and type args.
Many radio drivers did not check the tuner and type field correctly
for g/s_frequency. These checks have now been added.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:53 -02:00
Mauro Carvalho Chehab
cda4303f55 V4L/DVB (13546): ir-keymaps: Add table for Terratec Cinergy XS FM
This IR uses NEC protocol, with address=0x14. This keymap is similar
to the existing Terratec Cinergy XS, except that:
	- it contains the full address/command code;
	- the Music button were mapped as KEY_RADIO;
	- some keycodes from the previous entry were wrong, IMHO.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:53 -02:00
Mauro Carvalho Chehab
1bad429e81 V4L/DVB (13545): em28xx: properly select IR protocol based on the IR table
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:52 -02:00
Mauro Carvalho Chehab
4039ff28a5 V4L/DVB (13544): ir-keymaps: mark the new rc5 hauppauge with IR_TYPE_RC5
While here, move the table to a better place inside the file

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:52 -02:00
Mauro Carvalho Chehab
d30a3fe896 V4L/DVB (13543): ir-common: Associate a table with a given protocol type
While here, convert the protocol types into an enum
and define 0 as unknown.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 00:17:52 -02:00
Stephen Rothwell
8bea8672ed mfd: compile fix for twl4030 renaming
Caused by commit 0b83ddebc6 ("MFD:
twl4030: add twl4030_codec MFD as a new child to the core") interacting
with commit b07682b605 ("mfd: Rename
twl4030* driver files to enable re-use").

This file seems to have been missed in the renaming.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 09:33:36 -08:00
Linus Torvalds
d180ec5d34 Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: event tracing support
  xfs: change the xfs_iext_insert / xfs_iext_remove
  xfs: cleanup bmap extent state macros
2009-12-15 09:12:43 -08:00
Linus Torvalds
53365383c4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (80 commits)
  dm snapshot: use merge origin if snapshot invalid
  dm snapshot: report merge failure in status
  dm snapshot: merge consecutive chunks together
  dm snapshot: trigger exceptions in remaining snapshots during merge
  dm snapshot: delay merging a chunk until writes to it complete
  dm snapshot: queue writes to chunks being merged
  dm snapshot: add merging
  dm snapshot: permit only one merge at once
  dm snapshot: support barriers in snapshot merge target
  dm snapshot: avoid allocating exceptions in merge
  dm snapshot: rework writing to origin
  dm snapshot: add merge target
  dm exception store: add merge specific methods
  dm snapshot: create function for chunk_is_tracked wait
  dm snapshot: make bio optional in __origin_write
  dm mpath: reject messages when device is suspended
  dm: export suspended state to targets
  dm: rename dm_suspended to dm_suspended_md
  dm: swap target postsuspend call and setting suspended flag
  dm crypt: add plain64 iv
  ...
2009-12-15 09:12:01 -08:00
Linus Torvalds
51b736b851 Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block:
  cfq: set workload as expired if it doesn't have any slice left
  Fix a CFQ crash in "for-2.6.33" branch of block tree
  cfq: Remove wait_request flag when idle time is being deleted
  cfq-iosched: commenting non-obvious initialization
  cfq-iosched: Take care of corner cases of group losing share due to deletion
  cfq-iosched: Get rid of cfqq wait_busy_done flag
  cfq: Optimization for close cooperating queue searching
  block,xd: Delay allocation of DMA buffers until device is known
  drbd: Following the hmac change to SHASH (see linux commit 8bd1209cff)
  cfq-iosched: reduce write depth only if sync was delayed
2009-12-15 09:11:28 -08:00
Linus Torvalds
a8aa1ebdf8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ac97_codec - increase timeout for analog sections to 5 second
  ASoC: Correct code taking the size of a pointer
  ALSA: hda - Add PCI IDs for Nvidia G2xx-series
  ALSA: sound/isa/gus: Correct code taking the size of a pointer
  ALSA: hda: Fix max PCM level to 0 dB for AD1981_HP
  ALSA: hda: Use ALC260_WILL quirk for another Acer model (0x1025007f)
2009-12-15 09:11:05 -08:00
Linus Torvalds
8f0ddf91f2 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
  clockevents: Convert to raw_spinlock
  clockevents: Make tick_device_lock static
  debugobjects: Convert to raw_spinlocks
  perf_event: Convert to raw_spinlock
  hrtimers: Convert to raw_spinlocks
  genirq: Convert irq_desc.lock to raw_spinlock
  smp: Convert smplocks to raw_spinlocks
  rtmutes: Convert rtmutex.lock to raw_spinlock
  sched: Convert pi_lock to raw_spinlock
  sched: Convert cpupri lock to raw_spinlock
  sched: Convert rt_runtime_lock to raw_spinlock
  sched: Convert rq->lock to raw_spinlock
  plist: Make plist debugging raw_spinlock aware
  bkl: Fixup core_lock fallout
  locking: Cleanup the name space completely
  locking: Further name space cleanups
  alpha: Fix fallout from locking changes
  locking: Implement new raw_spinlock
  locking: Convert raw_rwlock functions to arch_rwlock
  locking: Convert raw_rwlock to arch_rwlock
  ...
2009-12-15 09:02:01 -08:00
Linus Torvalds
050cbb09da Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  avr32: update default configurations for ATNGW100, ATSTK1002 and ATSTK1006
  avr32: add default configurations for ATNGW100 mkII and EVKLCD10X
  avr32: add support for ATNGW100 mkII board
  avr32: convert to asm-generic/hardirq.h
  avr32: add two new at91 to cpu.h definition
  avr32: clean up linker script using standard macros.
  avr32: MRMT: correct setup of SPI slaves
  avr32: function for independently setting up SPI slaves
  avr32: re-instate MCI WP/CD pin assignments for ATNGW100
2009-12-15 09:01:00 -08:00
Linus Torvalds
17c330f983 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix clock event multiplier printf format.
  sparc64: Use clock{source,events}_calc_mult_shift().
  sparc64: Use free_bootmem_late() in mdesc_lmb_free().
  sparc: Add alignment and emulation fault perf events.
  sparc64: Add syscall tracepoint support.
  sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}()
  sparc: Use __builtin_object_size() to validate the buffer size for copy_from_user()
  sparc64: Add some missing __kprobes annotations to kernel fault paths.
  sparc64: Use kprobes_built_in() to avoid ifdefs in fault_64.c
  sparc: Validate that kprobe address is 4-byte aligned.
  sparc64: Don't specify IRQF_SHARED for LDC interrupts.
  sparc64: Fix stack debugging IRQ stack regression.
  sparc64: Fix overly strict range type matching for PCI devices.
2009-12-15 09:00:19 -08:00
Linus Torvalds
48e902f0a3 Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
  power_supply_sysfs: Handle -ENODATA in a special way
  wm831x_backup: Remove unused variables
  gta02: Set pcf50633 charger_reference_current_ma
  pcf50633: Query charger status directly
  pcf50633: Properly reenable charging when the supply conditions change
  pcf50633: Get rid of charging restart software auto-triggering
  pcf50633: introduces battery charging current control
  pcf50633: Add ac power supply class to the charger
  wm831x: Factor out WM831x backup battery charger
2009-12-15 08:59:33 -08:00
Linus Torvalds
7f6cd5408a Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: Close usb_find_interface race v3
  Revert "USB: Close usb_find_interface race"
2009-12-15 08:58:13 -08:00
Samu Onkalo
e956e6b770 lis3: update documentation to match latest changes
[akpm@linux-foundation.org: s/q/g/ (Randy)]
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
32496c76b7 lis3: scale output values to mg
Report output values as 1/1000 of earth gravity.

Output values from lis3 can be read from sysfs position entry and from
input device.  Input device can be accessed as event device and as
joystick device.  Joystick device can be in two modes.  Meaning of the
output values varies from case to case depending on the chip type and
configuration (scale).  Only joystick interface in JS_CORR_BROKEN mode
returned somehow similar output values in different configurations.
Joystick device is in that state by default in case of lis3.

Position sysfs entry, input event device and raw joystick device have been
little bit broken since meaning of the output values has been varied
between 12 and 8 bit devices.  Applications which relayed on those methods
failed if the chip is different than the expected one.

This patch converts output values to mean similar thing in different
configurations.  Both 8 and 12 bit devices reports now same acceleration
values.  If somebody implements full scale support to the driver, output
values will still mean the same.  Scaling factor and input device range
must be updated in that case.

Joystick interface in JS_CORR_BROKEN mode is not touched by this patch.
All other interfaces have different scale after this change.  For 12 bit
device scaling factor is 0.977 which keeps scaled and unscaled values are
quite close to each others.  For 8 bit device, scaled values are 18 times
bigger than unscaled values.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
a253aaef60 lis3: sysfs entry for setting chip measurement rate
It is possible to read position information at the chip measurement rate
via sysfs.  This patch adds possibility to configure chip measurement
rate.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
539954120b lis3lv02d: remove calibaration functionality
Chip is calibrated by the manufacturer.  There is no need to calibarate it
at driver level.  If the chip is used as a joystick, calibaration can be
done using joystick device calibration mechanism.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
2db4a76d5f lis3: selftest support
Implement selftest feature as specified by chip manufacturer.  Control:
read selftest sysfs entry

Response: "OK x y z" or "FAIL x y z"

where x, y, and z are difference between selftest mode and normal mode.
Test is passed when values are within acceptance limit values.

Acceptance limits are provided via platform data.  See chip spesifications
for acceptance limits.  If limits are not properly set, OK / FAIL decision
is meaningless.  However, userspace application can still make decision
based on the numeric x, y, z values.

Selftest is meant for HW diagnostic purposes.  It is not meant to be
called during normal use of the chip.  It may cause false interrupt
events.  Selftest mode delays polling of the normal results but it doesn't
cause wrong values.  Chip must be in static state during selftest.  Any
acceration during the test causes most probably failure.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
641615abfa lis3lv02d: proper power on sequence
Lis3 accelerometer sensors have quite long power on delay (up to 125
ms). This patch adds necessary delay to power on sequence for currently
supported lis3 chips.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: Éric Piel <eric.piel@tremplin-utc.net>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Éric Piel
4b5d95b380 lis3: fix show rate for 8 bits chips
Originally the driver was only targeted to 12bits sensors.  When support
for 8bits sensors was added, some slight difference in the registers were
overlooked.  This should fix it, both for initialization, and for
displaying the rate.

Reported-by: Kalhan Trisal <kalhan.trisal@intel.com>
Reported-by: Christoph Plattner <christoph.plattner@gmx.at>
Tested-by: Christoph Plattner <christoph.plattner@gmx.at>
Tested-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Éric Piel
bc62c14717 lis3: update documentation and comments
Most of the documentation and comments were written when the driver was
only supporting one type of chip, only via ACPI/HP. Update the info to
the much clearer understanding that we have now.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
66c8569bf9 lis3lv02d: correct memory leak in module unload
polled input device itself was not free'd.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: Éric Piel <eric.piel@tremplin-utc.net>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00