Drop a since commit e1159cb357 ("[media] mceusb: remove pointless
mce_flush_rx_buffer function") redundant reinitialisation of two urb
fields immediately after they have been initialised.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fix urb and transfer-buffer leaks in an urb-submission error path which
may be hit when a device is disconnected.
Fixes: 66e89522af ("V4L/DVB: IR: add mceusb IR receiver driver")
Cc: stable <stable@vger.kernel.org> # 2.6.36
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
RX -EPIPE failure with infinite loop and flooding of
[ 2851.966506] mceusb 1-1.2:1.0: Error: urb status = -32
log message at 8000 messages per second.
Bug trigger appears to be normal, but heavy, IR receiver use.
Driver and Linux host become unusable after error.
Also seen at https://sourceforge.net/p/lirc/mailman/message/34886165/
Fix:
Message reports RX usb halt (stall) condition requiring usb_clear_halt()
call in non-interrupt context to recover. Add driver workqueue call to
perform this recovery based on method in use for the usbnet device driver.
Signed-off-by: A Sun <as1033x@comcast.net>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Some dev_dbg messages are misleading. Some dev_dbg messages have
inconsistent formatting. mceusb_dev_printdata() prints incorrect range
of bytes (0 to len) in buffer which the driver will actually process next.
Signed-off-by: A Sun <as1033x@comcast.net>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Intermittent RX truncation and loss of IR received data. This resulted
in receive stream synchronization errors where driver attempted to
incorrectly parse IR data (eg 0x90 below) as command response.
[ 3969.139898] mceusb 1-1.2:1.0: processed IR data
[ 3969.151315] mceusb 1-1.2:1.0: rx data: 00 90 (length=2)
[ 3969.151321] mceusb 1-1.2:1.0: Unknown command 0x00 0x90
[ 3969.151336] mceusb 1-1.2:1.0: rx data: 98 0a 8d 0a 8e 0a 8e 0a 8e 0a 8e 0a 9a 0a 8e 0a 0b 3a 8e 00 80 41 59 00 00 (length=25)
[ 3969.151341] mceusb 1-1.2:1.0: Raw IR data, 24 pulse/space samples
[ 3969.151348] mceusb 1-1.2:1.0: Storing space with duration 500000
Bug trigger appears to be normal, but heavy, IR receiver use.
Signed-off-by: A Sun <as1033x@comcast.net>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Make sure to check for the required out endpoint to avoid dereferencing
a NULL-pointer in mce_request_packet should a malicious device lack such
an endpoint. Note that this path is hit during probe.
Fixes: 66e89522af ("V4L/DVB: IR: add mceusb IR receiver driver")
Cc: stable <stable@vger.kernel.org> # 2.6.36
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The driver type can be assigned immediately when an RC device
requests to the framework to allocate the device.
This is an 'enum rc_driver_type' data type and specifies whether
the device is a raw receiver or scancode receiver. The type will
be given as parameter to the rc_allocate_device device.
Change accordingly all the drivers calling rc_allocate_device()
so that the device type is specified during the rc device
allocation. Whenever the device type is not specified, it will be
set as RC_DRIVER_SCANCODE which was the default '0' value.
Suggested-by: Sean Young <sean@mess.org>
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
unknown and other are for IR protocols for which we have no decoder,
so the raw IR drivers have no chance of generating them. cec is not
an IR protocol.
Signed-off-by: Sean Young <sean@mess.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
LIRC_SET_SEND_CARRIER ioctl should not return the carrier used, it
should return 0.
Signed-off-by: Sean Young <sean@mess.org>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.
The patch has been created with the following command without manual edits:
git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This function just submits the urb much like mceusb_dev_resume; removing
it simplifies mce_request_packet.
Also add missing usb_kill_urb to mce_dev_probe.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Such debug message has a logic to track the IR status,
but it doesn't provide much info. So, get rid of it.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Due to the 80-cols restrictions, and latter due to checkpatch
warnings, several strings were broken into multiple lines. This
is not considered a good practice anymore, as it makes harder
to grep for strings at the source code.
As we're right now fixing other drivers due to KERN_CONT, we need
to be able to identify what printk strings don't end with a "\n".
It is a way easier to detect those if we don't break long lines.
So, join those continuation lines.
The patch was generated via the script below, and manually
adjusted if needed.
</script>
use Text::Tabs;
while (<>) {
if ($next ne "") {
$c=$_;
if ($c =~ /^\s+\"(.*)/) {
$c2=$1;
$next =~ s/\"\n$//;
$n = expand($next);
$funpos = index($n, '(');
$pos = index($c2, '",');
if ($funpos && $pos > 0) {
$s1 = substr $c2, 0, $pos + 2;
$s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2;
$s2 =~ s/^\s+//;
$s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne "");
print unexpand("$next$s1\n");
print unexpand("$s2\n") if ($s2 ne "");
} else {
print "$next$c2\n";
}
$next="";
next;
} else {
print $next;
}
$next="";
} else {
if (m/\"$/) {
if (!m/\\n\"$/) {
$next=$_;
next;
}
}
}
print $_;
}
</script>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
LIRC_SET_SEND_CARRIER should return 0 on success or -errno.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
When s_tx_mask is given an invalid bitmask, the number of transmitters
should be returned. See the LIRC_SET_TRANSMITTER_MASK lirc ioctl
documentation.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Add USB ID of SMK RXX6000 series IR receiver. Often branded as
Lenovo receiver.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
New USB ID for Adaptec eHome receiver in some HP laptops.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
It makes the printk cleaner. As a side efect, it also fixes those smatch
warnings:
drivers/media/rc/mceusb.c:590 mceusb_dev_printdata() warn: argument 6 to %02x specifier has type 'char'
drivers/media/rc/mceusb.c:590 mceusb_dev_printdata() warn: argument 7 to %02x specifier has type 'char'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
mceusb_init_rc_dev() does usb_get_dev(), but there is no any
usb_put_dev() in the driver.
The patch tries to straighten logic. It moves usb_get_dev()
directly to mceusb_dev_probe() and adds usb_put_dev() to an error path
and to mceusb_dev_disconnect().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Some vendors have their on keymap table that are used on
all (or almost all) models for that vendor.
So, instead of specifying the keymap table per USB ID,
let's use the Vendor ID's table by default.
At the end, this will mean less code to be added when newer
devices for those vendors are added.
Of course, if rc_map is specified per board, it takes
precedence.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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>
Change the I/O endpoint handling of the mceusb driver to respect the endpoint
type reported by device (bulk/interrupt), rather than treating all endpoints
as type interrupt, which breaks devices using bulk endpoints when connected
to a xhci controller. Accordingly, change the function calls to initialize
an endpoint's transfer pipe and urb handlers to use the correct function based
on the endpoint type.
[m.chehab@samsung.com: Fix merge conflicts and compilation breakage]
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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>
A number of recent bug reports involve usb_submit_urb() failing which was
only reported with debug parameter on. In addition, remove custom debug
function.
[m.chehab@samsung.com: patch rebased, as one of the patches on this
series need changes]
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add usb id of Hauppauge WinTV-HVR-930C HD to mceusb RC driver.
This device has no IR transmitter (according to eeprom content decoded
by tveeprom).
Set the rc mapping to Hauppauge, every key of the deliviered remote
control works correctly.
[m.chehab@samsung.com: fix merge conflicts and unmangled whitespace]
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Fix mceusb_cmdsize() which returns incorrect datasize=0 for
sub-commands MCE_RSP_GETPORTSTATUS, MCE_RSP_GETWAKESOURCE,
MCE_RSP_EQDEVDETAILS, MCE_RSP_EQEMVER, and MCE_RSP_EQIRNUMPORTS.
While here, change mceusb_cmdsize() name to reflect that it returns
data size not cmd size.
Signed-off-by: William Steidtmann <billstei@hbci.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Smatch complains that "cmdbuf[cmdcount - length]" might go past the end
of the array. It's an easy warning to silence by moving the limit
check earlier.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This transceiver expects the set IR TX ports and IR data as seperate
packets, like the Windows driver does. Remove unnecessary kzalloc.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The GET_REVISION command puts the device in an unresponsive state,
although it continues to report any IR activity. Note that GET_REVISION
command is not documented, nor is any possible response to it parsed.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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>
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>
DIV_ROUND_CLOSEST is faster if the compiler knows it will only be
dealing with unsigned dividends.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The lirc TX functionality expects the process which writes (TX) data to
the lirc dev to sleep until the actual data has been transmitted by the
hardware.
Since the same timeout calculation is duplicated in more than one driver
(and would have to be duplicated in even more drivers as they gain TX
support), it makes sense to move this timeout calculation to the lirc
layer instead.
At the same time, centralize some of the sanity checks.
Signed-off-by: David Härdeman <david@hardeman.nu>
Cc: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The TechnoTrend USB IR Receiver sends 125 ISO URBs per second, even when
there is no IR activity. Reduce the number of wake ups from the other
drivers too.
This saves about 0.25ms/s on a 2.4GHz Core 2 according to powertop.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add USB identifiers for MCE compatible I/R transceivers from Twisted Melon.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Drivers that refer to a __devexit function in an operations
structure need to annotate that pointer with __devexit_p so
replace it with a NULL pointer when the section gets discarded.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
media_build/v4l/drxk_hard.c: In function 'DownloadMicrocode':
media_build/v4l/drxk_hard.c:1388:6: warning: variable 'BlockCRC' set but not used [-Wunused-but-set-variable]
media_build/v4l/drxk_hard.c:1384:6: warning: variable 'Drain' set but not used [-Wunused-but-set-variable]
media_build/v4l/drxk_hard.c:1383:6: warning: variable 'Flags' set but not used [-Wunused-but-set-variable]
media_build/v4l/lmedm04.c: In function 'lme2510_probe':
media_build/v4l/lmedm04.c:1208:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
media_build/v4l/hopper_cards.c: In function 'hopper_irq_handler':
media_build/v4l/hopper_cards.c:68:26: warning: variable 'lstat' set but not used [-Wunused-but-set-variable]
media_build/v4l/mantis_cards.c: In function 'mantis_irq_handler':
media_build/v4l/mantis_cards.c:76:26: warning: variable 'lstat' set but not used [-Wunused-but-set-variable]
media_build/v4l/mantis_dma.c: In function 'mantis_dma_stop':
media_build/v4l/mantis_dma.c:202:16: warning: variable 'mask' set but not used [-Wunused-but-set-variable]
media_build/v4l/mantis_dma.c:202:6: warning: variable 'stat' set but not used [-Wunused-but-set-variable]
media_build/v4l/mantis_evm.c: In function 'mantis_hifevm_work':
media_build/v4l/mantis_evm.c:44:17: warning: variable 'gpif_mask' set but not used [-Wunused-but-set-variable]
media_build/v4l/stb0899_drv.c: In function 'stb0899_init_calc':
media_build/v4l/stb0899_drv.c:640:5: warning: variable 'agc1cn' set but not used [-Wunused-but-set-variable]
media_build/v4l/stb0899_drv.c: In function 'stb0899_diseqc_init':
media_build/v4l/stb0899_drv.c:830:13: warning: variable 'f22_rx' set but not used [-Wunused-but-set-variable]
media_build/v4l/stb0899_drv.c:826:31: warning: variable 'tx_data' set but not used [-Wunused-but-set-variable]
media_build/v4l/stv0900_sw.c: In function 'stv0900_track_optimization':
media_build/v4l/stv0900_sw.c:838:26: warning: variable 'rolloff' set but not used [-Wunused-but-set-variable]
media_build/v4l/ir-sanyo-decoder.c: In function 'ir_sanyo_decode':
media_build/v4l/ir-sanyo-decoder.c:59:14: warning: variable 'not_address' set but not used [-Wunused-but-set-variable]
media_build/v4l/mceusb.c: In function 'mceusb_dev_printdata':
media_build/v4l/mceusb.c:523:46: warning: variable 'data5' set but not used [-Wunused-but-set-variable]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Yet another device ID that has started showing up in the wild.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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>
This converts the drivers in drivers/media/* to use the
module_usb_driver() macro which makes the code smaller and a bit
simpler.
Added bonus is that it removes some unneeded kernel log messages about
drivers loading and/or unloading.
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Luca Risolia <luca.risolia@studio.unibo.it>
Cc: Jean-Francois Moine <moinejf@free.fr>
Cc: Frank Zago <frank@zago.net>
Cc: Olivier Lorin <o.lorin@laposte.net>
Cc: Erik Andren <erik.andren@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Brian Johnson <brijohn@gmail.com>
Cc: Leandro Costantino <lcostantino@gmail.com>
Cc: Antoine Jacquet <royale@zerezo.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Florian Mickler <florian@mickler.org>
Cc: Antti Palosaari <crope@iki.fi>
Cc: Michael Krufky <mkrufky@kernellabs.com>
Cc: "David Härdeman" <david@hardeman.nu>
Cc: Florent Audebert <florent.audebert@anevia.com>
Cc: Sam Doshi <sam@metal-fish.co.uk>
Cc: Manu Abraham <manu@linuxtv.org>
Cc: Olivier Grenie <olivier.grenie@dibcom.fr>
Cc: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Cc: "Igor M. Liplianin" <liplianin@me.by>
Cc: Derek Kelly <user.vdr@gmail.com>
Cc: Malcolm Priestley <tvboxspy@gmail.com>
Cc: Steven Toth <stoth@kernellabs.com>
Cc: "André Weidemann" <Andre.Weidemann@web.de>
Cc: Martin Wilks <m.wilks@technisat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jose Alberto Reguero <jareguero@telefonica.net>
Cc: David Henningsson <david.henningsson@canonical.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jesper Juhl <jj@chaosbits.net>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Anssi Hannula <anssi.hannula@iki.fi>
Cc: Rafi Rubin <rafi@seas.upenn.edu>
Cc: Dan Carpenter <error27@gmail.com>
Cc: Paul Bender <pebender@gmail.com>
Cc: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: "Márcio A Alves" <froooozen@gmail.com>
Cc: Julia Lawall <julia@diku.dk>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Chris Rankin <rankincj@yahoo.com>
Cc: Lee Jones <lee.jones@canonical.com>
Cc: Andy Walls <awalls@md.metrocast.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Dean Anderson <linux-dev@sensoray.com>
Cc: Pete Eberlein <pete@sensoray.com>
Cc: Arvydas Sidorenko <asido4@gmail.com>
Cc: Andrea Anacleto <andreaanacleto@libero.it>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add note about recent updates coming from Microsoft's publicly available
specs on Windows Media Center remotes and receivers/transmitters.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Rather than dumping out hex values, lets print the actual calculated
frequency and period the hardware has been configured for. After this
[ 2643.276215] mceusb 3-1:1.0: tx data: 9f 07 (length=2)
[ 2643.276218] mceusb 3-1:1.0: Get carrier mode and freq
[ 2643.277206] mceusb 3-1:1.0: rx data: 9f 06 01 42 (length=4)
[ 2643.277209] mceusb 3-1:1.0: Got carrier of 37037 Hz (period 27us)
Matches up perfectly with the table in Microsoft's docs.
Of course, I've noticed on one of my devices that the MS-recommended
default value of 1 for carrier pre-scaler and 66 for carrier period was
butchered, and instead of converting 66 to hex (0x42 like above), they
put in 0x66, so the hardware reports a default carrier of 24390Hz.
Fortunately, I guess, this particular device is rx-only, but I wouldn't
put it past other hw to screw up here too.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
According to the specs, you can read the number of tx ports, number of
rx sensors, which tx ports have cables plugged into them, and which rx
sensors are active. In practice, most of my devices do seem to report
sane values for tx ports and rx sensors (but not all -- one without any
tx ports reports having them), and most report the active sensor
correctly, but only one of eight reports cabled tx ports correctly. So
for the most part, this is just for informational purposes.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Supposedly, there are essentially three different classes of devices
that are compatible with Microsoft's specs. First are the "legacy"
devices, which are built using Microsoft-provided hardware specs and
firmware. Second are "emulator" devices, which are built using custom
hardware and firmware, written to emulate Microsoft's firmware. Third
are "port" devices, which have their own device driver and firmware,
which provides compatible data to higher levels of the stack.
>From what I can tell, things like nuvoton-cir and fintek-cir are
essentially "port" devices -- their raw IR buffer format is very similar
to that of the mceusb devices. Now, within the mceusb driver, we have
three different "generations", which at first, seemed like maybe they
mapped to emulator versions. Unfortuantely, every single device I have
responds "illegal command" to the query to get firmware emulator version
from the hardware, which means they're either all emulator version 1, or
they're legacy devices, and our different "generations" aren't at all
related here. Though in theory, its possible the gen1 devices are
"legacy" devices and the rest are emulator v1. There are some useful
features of the v2 interface I was hoping to play with, but alas...
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
According to MS docs, the device firmware may halt after receiving an
unknown instruction, but that it should be possible to tell the firmware
to continue running by simply sending a device resume command. So lets
do that.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
