History log of /drivers/media/rc/winbond-cir.c
Revision Date Author Comments
c5540fbb9de39ceec108a889133664a887c2f55a 04-Apr-2014 David Härdeman <david@hardeman.nu> [media] rc-core: remove protocol arrays

The basic API of rc-core used to be:

dev = rc_allocate_device();
dev->x = a;
dev->y = b;
dev->z = c;
rc_register_device();

which is a pretty common pattern in the kernel, after the introduction of
protocol arrays the API looks something like:

dev = rc_allocate_device();
dev->x = a;
rc_set_allowed_protocols(dev, RC_BIT_X);
dev->z = c;
rc_register_device();

There's no real need for the protocols to be an array, so change it
back to be consistent (and in preparation for the following patches).

[m.chehab@samsung.com: added missing changes at some files]
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
1a1934fab0c920f0d3bceeb60c9fe2dae8a56be9 01-Mar-2014 James Hogan <james.hogan@imgtec.com> [media] rc: abstract access to allowed/enabled protocols

The allowed and enabled protocol masks need to be expanded to be per
filter type in order to support wakeup filter protocol selection. To
ease that process abstract access to the rc_dev::allowed_protos and
rc_dev::enabled_protocols members with inline functions.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
b9e9f02a26909fdf9b81d41aeaa435b9ea926d6a 13-Oct-2013 Michael Opdenacker <michael.opdenacker@free-electrons.com> [media] winbond-cir: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
1ac7fdeeb52b05e108713d1ccc63e714c2489717 31-Jul-2013 Sean Young <sean@mess.org> [media] winbond: wire up rc feedback led

Note that with the rc-feedback trigger, the cir-rx trigger is now
redundant. The cir-tx trigger is not used by default; if this
functionality is desired then it should exist in rc-core, not in
a driver.
Also make sure that the led is suspended on suspend.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
4ec16da733b81b64e9c7823fd2ea506131013a8f 09-Apr-2013 Wei Yongjun <yongjun_wei@trendmicro.com.cn> [media] rc: winbond-cir: fix potential double free in wbcir_probe()

Since rc_unregister_device() frees its argument, the subsequently
call to rc_free_device() on the same variable will cause a double
free bug. Fix by set argument to NULL, thus when fall through to
rc_free_device(), nothing will be done there.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
6f2627c29f6619ebdbc6de8934b33c23b73be8e6 06-Jan-2013 Sean Young <sean@mess.org> [media] winbond-cir: only enable higher sample resolution if needed

A sample resolution of 2us generates more than 300 interrupts per key
and this resolution is not needed unless carrier reports are enabled.
Revert to a resolution of 10us unless carrier reports are needed. This
generates up to a fifth of the interrupts.

Signed-off-by: Sean Young <sean@mess.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
4c62e9764ab403d42f9b8871b1241fe7812f19d4 21-Dec-2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org> Drivers: media: remove __dev* attributes.

CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9fa35204dd19eb0e96ee870b7128a8f5da51dbfa 02-Nov-2012 Matthijs Kooijman <matthijs@stdin.nl> [media] rc: Call rc_register_device before irq setup

This should fix a potential race condition, when the irq handler
triggers while rc_register_device is still setting up the rdev->raw
device.
This crash has not been observed in practice, but there should be a very
small window where it could occur. Since ir_raw_event_store_with_filter
checks if rdev->raw is not NULL before using it, this bug is not
triggered if the request_irq triggers a pending irq directly (since
rdev->raw will still be NULL then).
This commit was tested on nuvoton-cir only.

Cc: Jarod Wilson <jarod@redhat.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: David Härdeman <david@hardeman.nu>
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
37b0b4e90d799cddfdd5d0a90ed470933f7e9859 24-Oct-2012 Sean Young <sean@mess.org> [media] winbond-cir: add carrier detection

The winbond hardware has a counter for leading edges, which increases as
they are received. As we read raw IR from a fifo in an interrupt handler,
we cannot correlate them to specific IR pulses so we simply count all
pulses and edges until we go idle and disable the receiver.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
c496e716e0a7e3c486b99edbab5a6db7649824b1 24-Oct-2012 Sean Young <sean@mess.org> [media] winbond-cir: increase IR receiver resolution

This is needed for carrier reporting.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
e5eda7faea23c28836f17487962c6539fd3b3e27 24-Oct-2012 Sean Young <sean@mess.org> [media] winbond-cir: fix idle mode

The receiver is never disabled by idle mode since rxstate never gets set
to RXSTATE_ACTIVE, so we keep on getting interrupts after the first IR
activity ends. Note that ir_raw_event_reset() already calls
ir_raw_event_handle().

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
a66cd0b691c730ed751dbf66ffbd0edf18241790 17-Oct-2012 Sean Young <sean@mess.org> [media] winbond-cir: do not rename input name

"54fd321 [media] winbond: remove space from driver name" inadvertently
renamed the input device name.

Signed-off-by: Sean Young <sean@mess.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
c003ab1bedf028db15b0185b683d5c387204e8f5 12-Oct-2012 David Härdeman <david@hardeman.nu> [media] rc-core: add separate defines for protocol bitmaps and numbers

The RC_TYPE_* defines are currently used both where a single protocol is
expected and where a bitmap of protocols is expected.

Functions like rc_keydown() and functions which add/remove entries to the
keytable want a single protocol. Future userspace APIs would also
benefit from numeric protocols (rather than bitmap ones). Keytables are
smaller if they can use a small(ish) integer rather than a bitmap.

Other functions or struct members (e.g. allowed_protos,
enabled_protocols, etc) accept multiple protocols and need a bitmap.

Using different types reduces the risk of programmer error. Using a
protocol enum whereever possible also makes for a more future-proof
user-space API as we don't need to worry about a sufficient number of
bits being available (e.g. in structs used for ioctl() calls).

The use of both a number and a corresponding bit is dalso one in e.g.
the input subsystem as well (see all the references to set/clear bit when
changing keytables for example).

This patch separate the different usages in preparation for
upcoming patches.

Where a single protocol is expected, enum rc_type is used; where one or more
protocol(s) are expected, something like u64 is used.

The patch has been rewritten so that the format of the sysfs "protocols"
file is no longer altered (at the loss of some detail). The file itself
should probably be deprecated in the future though.

Signed-off-by: David Härdeman <david@hardeman.nu>
Cc: Andy Walls <awalls@md.metrocast.net>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Antti Palosaari <crope@iki.fi>
Cc: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
54fd321e131587b008c47289e4066ac65935cfb5 28-Sep-2012 Sean Young <sean@mess.org> [media] winbond: remove space from driver name

-snip-
ACTION=add
DEVPATH=/devices/pnp0/00:04/rc/rc0
DRV_NAME=Winbond CIR
NAME=rc-rc6-mce
SUBSYSTEM=rc
UDEV_LOG=6
USEC_INITIALIZED=88135858
run: '/usr/bin/ir-keytable -a /etc/rc_maps.cfg -s rc0'
Having a space makes it impossible to match in /etc/rc_maps.cfg.

[root@pequod ~]# udevadm test /sys/class/rc/rc0
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
7bfb5dc1cd7f6c98f85aff27b5091f9cbbc2932f 25-Aug-2012 David Härdeman <david@hardeman.nu> [media] winbond-cir: asynchronous tx

Change winbond-cir's tx support to be asynchronous and not to mess with
the TX buffer. Essentially the winbond-cir counterpart to the patch
Sean Young sent for iguanair.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
30cedcf34f0309ea1ad6e0fdf7a52fcf37985658 25-Aug-2012 David Härdeman <david@hardeman.nu> [media] winbond-cir: correctness fix

This is a minor correctness fix for the duration calculation in
winbond-cir (the read value should be incremented by one).

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
8299d62843d4dcc5d769ce901799b8e7806ec93f 02-Jul-2012 Anton Blanchard <anton@samba.org> [media] winbond-cir: Initialise timeout, driver_type and allowed_protos

We need to set a timeout so we can go idle on no activity.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
57f4422f7bd83bb0a092e3f9aea0d9c8ac59045e 02-Jul-2012 Anton Blanchard <anton@samba.org> [media] winbond-cir: Fix txandrx module info

We aren't getting any module info for the txandx option because
of a typo:

parm: txandrx:bool

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
9ef449c6b31bb6a8e6dedc24de475a3b8c79be20 21-Apr-2012 Luis Henriques <luis.henriques@canonical.com> [media] rc: Postpone ISR registration

An early registration of an ISR was causing a crash to several users (for
example, with the ite-cir driver: http://bugs.launchpad.net/bugs/972723).
The reason was that IRQs were being triggered before a driver
initialisation was completed.

This patch fixes this by moving the invocation to request_irq() and to
request_region() to a later stage on the driver probe function.

Cc: <stable@vger.kernel.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
d9b786955f80fb306471fdb9ea24c6d03af6ca36 08-Apr-2012 David Härdeman <david@hardeman.nu> [media] rc-core: set mode for winbond-cir

Setting the correct mode is required by rc-core or scancodes won't be
generated (which isn't very user-friendly).

This one-line fix should be suitable for 3.4-rc2.

Signed-off-by: David Härdeman <david@hardeman.nu>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
90ab5ee94171b3e28de6bb42ee30b527014e0be7 13-Jan-2012 Rusty Russell <rusty@rustcorp.com.au> module_param: make bool parameters really bool (drivers & misc)

module_param(bool) used to counter-intuitively take an int. In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option. For this version
it'll simply give a warning, but it'll break next kernel version.

Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
d36b691077dc59c74efec0d54ed21b86f7a2a21a 29-Dec-2011 Al Viro <viro@zeniv.linux.org.uk> misc latin1 to utf8 conversions

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
d8a10ac948545d8a4261728719af39b5dffaf7da 22-Aug-2011 Joe Perches <joe@perches.com> [media] winbond-cir: Use current logging styles

Add pr_fmt, convert printks to pr_<level>.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
5588dc2b025fd8b2188142b8d59efe562bd57d80 28-Apr-2011 David Härdeman <david@hardeman.nu> [media] rc-core: lirc use unsigned int

Durations can never be negative, so it makes sense to consistently use
unsigned int for LIRC transmission. Contrary to the initial impression,
this shouldn't actually change the userspace API.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
b87f2eddfaa2e74b51978f7c8671f3f4777af3fe 30-Mar-2011 David Härdeman <david@hardeman.nu> [media] rc-core: fix winbond-cir issues

The conversion of winbond-cir to use rc-core seems to have missed a
a few bits and pieces which were in my local tree. Kudos to
Juan Jesús García de Soria Lucena <skandalfo@gmail.com> for noticing.

[mchehab@redhat.com: fix two UTF-8 violations]
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
488ebc4808162245be1f1365ea6854b4af6a1146 28-Apr-2011 David Härdeman <david@hardeman.nu> [media] rc-core: use ir_raw_event_store_with_filter in winbond-cir

Using ir_raw_event_store_with_filter() saves about 20 lines of code.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
c829f2672f312f2c19dc021b233a45d3dd850a4f 28-Apr-2011 David Härdeman <david@hardeman.nu> [media] rc-core: add TX support to the winbond-cir driver

This patch adds preliminary IR TX capabilities to the
winbond-cir driver.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
67cdd42e0630eff3673808aa57007501353c73b6 28-Apr-2011 David Härdeman <david@hardeman.nu> [media] rc-core: int to bool conversion for winbond-cir

Using bool instead of an int helps readability a bit.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
6bda96447cef24fbf97a798b1ea664224d5fdc25 17-Nov-2010 Mauro Carvalho Chehab <mchehab@redhat.com> [media] rc: rename the remaining things to rc_core

The Remote Controller subsystem is meant to be used not only by Infra Red
but also for similar types of Remote Controllers. The core is not specific
to Infra Red. As such, rename:
- ir-core.h to rc-core.h
- IR_CORE to RC_CORE
- namespace inside rc-core.c/rc-core.h

To be consistent with the other changes.

No functional change on this patch.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
5b2e303f6df1e0b1a903950c5d613a20c8c71a37 29-Oct-2010 David Härdeman <david@hardeman.nu> [media] rc-core: convert winbond-cir

Move winbond-cir from drivers/input/misc/ into drivers/media/rc/
and convert it to use rc-core.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>