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2009-06-23V4L/DVB (11901): v4l2: Create helper function for bounding and aligning imagesTrent Piepho
Most hardware has limits on minimum and maximum image dimensions and also requirements about alignment. For example, image width must be even or a multiple of four. Some hardware has requirements that the total image size (width * height) be a multiple of some power of two. v4l_bound_align_image() will enforce min and max width and height, power of two alignment on width and height, and power of two alignment on total image size. It uses an efficient algorithm that will try to find the "closest" image size that meets the requirements. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12128): v4l2: update framework documentation.Hans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12125): v4l2: add new s_config subdev ops and ↵Hans Verkuil
v4l2_i2c_new_subdev_cfg/board calls Add a new s_config core ops call: this is called with the irq and platform data to be used to initialize the subdev. Added new v4l2_i2c_new_subdev_cfg and v4l2_i2c_new_subdev_board calls that allows you to pass these new arguments. The existing v4l2_i2c_new_subdev functions were modified to also call s_config. In the future the existing v4l2_i2c_new_subdev functions will be replaced by a single v4l2_i2c_new_subdev function similar to v4l2_i2c_new_subdev_cfg but without the irq and platform_data arguments. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12122): pvrusb2: De-obfuscate code which handles routing schemesMike Isely
This change does not change any outward behavior; it merely chops down some large if-conditions with embedded assignments into something a little more maintainable for others (I of course never had a problem with this...). Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12121): pvrusb2: Improve handling of routing schemesMike Isely
The pvrusb2 driver has a concept of "routing scheme" which defines which physical inputs should be connected based on application's choice of logical input. The correct "routing scheme" depends on the specific device since different devices might wire up their muxes Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12120): pvrusb2: Change initial default frequency settingMike Isely
Change default frequency to be US Broadcast channel 3 - with the transition to d igital the previous value has now become useless. This change is PURELY to help with my testing (I need to set some kind of default so it might as well be some thing usable). Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12119): pvrusb2: Re-fix hardware scaling on video standard changeMike Isely
The cx25840 module's VBI initialization logic uses the current video standard as part of its internal algorithm. This therefore means that we probably need to make sure that the correct video standard has been set before initializing VBI. (Normally we would not care about VBI, but as described in an earlier changeset, VBI must be initialized correctly on the cx25840 in order for the chip's hardware scaler to operate correctly.) It's kind of messy to force the video standard to be set before initializing VBI (mainly because we can't know what the app really wants that early in the initialization process). So this patch does the next best thing: VBI is re-initialized after any point where the video standard has been set. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12118): pvrusb2: Fix hardware scaling when used with cx25840Mike Isely
The cx25840 module requires that its VBI initialization entry point be called in order for hardware-scaled video capture to work properly - even if we don't care about VBI. Making this behavior even more subtle is that if the capture resolution is set to 720x480 - which is the default that the pvrusb2 driver sets up - then the cx25840 bypasses the hardware scaler. Therefore this problem does not manifest itself until some other resolution, e.g. 640x480, is tried. MythTV typically defaults to 640x480 or 480x480, which means that things break whenever the driver is used with MythTV. This all has been known for a while (since at least Nov 2006), but recent changes in the pvrusb2 driver (specifically in regards to sub-device support) caused this to break again. VBI initialization must happen *after* the chip's firmware is loaded, not before. With this fix, 24xxx devices work correctly again. A related fix that is part of this changeset is that now we re-initialize VBI any time after we issue a reset to the cx25840 driver. Issuing a chip reset erases the state that the VBI setup previously did. Until the HVR-1950 came along this subtlety went unnoticed, because the pvrusb2 driver previously never issued such a reset. But with the HVR-1950 we have to do that reset in order to correctly transition from digital back to analog mode - and since the HVR-1950 always starts in digital mode (required for the DVB side to initialize correctly) then this device has never had a chance to work correctly in analog mode! Analog capture on the HVR-1950 has been broken this *ENTIRE* time. I had missed it until now because I've usually been testing at the default 720x480 resolution which does not require scaling... What fun. By re-initializing VBI after a cx25840 chip reset, correct behavior is restored. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12116): cx23885: ensure correct IF freq is used on HVR1200 & HVR1700Michael Krufky
Ensure that we're programming the tda18271 tuner with the correct IF frequencies to match the programming of the TDA10048 DVB-T demod for the HVR1200 and HVR1700 products. Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12115): tda10048: add missing entry to pll_tab for 3.8 MHz IFMichael Krufky
Thanks for Terry Wu for pointing out the missing entry. Cc: Terry Wu <terrywu2009@gmail.com> Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12112): cx231xx: fix uninitialized variable.Hans Verkuil
The variable 'rc' could be used uninitialized in the cx231xx_capture_start function. Sri informed me that it should be initialized to -1. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12111): tcm825x: remove incorrect __exit_p wrapperHans Verkuil
tcm825x_remove is not necessarily called on module exit, it can also be called when the i2c_adapter is removed. While the i2c adapter might never be removed on an embedded system, in practice this sensor driver can also be used in e.g. a USB webcam where this is a perfectly acceptable thing to do. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12109): radio-tea5764: fix incorrect rxsubchans valueHans Verkuil
rxsubchans was only set when stereo was detected, otherwise it was left to 0 instead of setting it to mono. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12108): v4l2-i2c-drv.h: add comment describing when not to use this ↵Hans Verkuil
header. Make it very clear that this header should not be used for i2c drivers that do not need to be compiled for pre-2.6.26 kernels. As soon as the minimum supported kernel in the v4l-dvb repository becomes 2.6.26 or up, then this header should be removed entirely. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12107): smscoreapi: fix compile warningHans Verkuil
gcc 4.3.1 generates this warning: v4l/smscoreapi.c: In function 'smscore_gpio_configure': v4l/smscoreapi.c:1481: warning: 'GroupNum' may be used uninitialized in this function v4l/smscoreapi.c:1480: warning: 'TranslatedPinNum' may be used uninitialized in this function While in practice this will not happen, it is something that the compiler can't determine. Initializing these two local variables to 0 suppresses this warning. Cc: Udi Atar <udi.linuxtv@gmail.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12104): ivtv/cx18: fix regression: class controls are no longer seenHans Verkuil
A previous change (v4l2-common: remove v4l2_ctrl_query_fill_std) broke the handling of class controls in VIDIOC_QUERYCTRL. The MPEG class control was broken for all drivers that use the cx2341x module and the USER class control was broken for ivtv and cx18. This change adds back proper class control support. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12102): em28xx: add Remote control support for EVGA inDtubeDevin Heitmueller
Add an IR profile for the EVGA inDtube remote control (which is an NEC type remote) Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12101): em28xx: add support for EVGA inDtubeDevin Heitmueller
Add support for the EVGA inDtube. Both ATSC and analog side validated as fully functional. Thanks to Jake Crimmins from EVGA for providing the correct GPIO info. Thanks to Alan Hagge for doing all the device testing. Thanks to Greg Williamson for providing hardware for testing. Cc: Jake Crimmins <jcrimmins@evga.com> Cc: Alan Hagge <ahagge@gmail.com> Cc: Greg Williamson <cheeseboy16@gmail.com> Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12100): em28xx: make sure the analog GPIOs are set if we used a ↵Devin Heitmueller
card hint In cases where the board had a default USB ID, we would not indentify the board until after the call to em28xx_set_mode(). As a result, for those boards the analog GPIOs were not being set before probing the i2c bus for devices (the probe would occur with the GPIOs being all high). Make a call to em28xx_set_mode() so that the GPIOs are set properly before probing the i2c bus for devices. This problem was detected with the EVGA inDtube, where the tvp5150 is not powered on unless GPIO1 is pulled low. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12098): Create table for customize stv0900 ts registers.Igor M. Liplianin
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12097): Implement reading uncorrected blocks for stv0900Abylay Ospan
Signed-off-by: Abylay Ospan <aospan@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12096): Bug fix: stv0900 register read must using i2c in one ↵Abylay Ospan
transaction Signed-off-by: Abylay Ospan <aospan@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12095): Change lnbh24 configure bits for NetUP card.Igor M. Liplianin
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12093): gspca_sonixj: Name saturation control saturation, not colorHans de Goede
Name saturation control saturation, not color and make the default less saturated (the old default was overdoing it). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12092): gspca_sonixj + ov7630: invert vflip control instead of ↵Hans de Goede
changing default gspca_sonixj + ov7630 had the default value for flip enabled, as otherwise the picture is upside down. It is better to instead invert the meaning of the control in the set function, and have the default be no vflip, as one would expect vflip enabled to be upside down. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12091): gspca_sonixj: Add light frequency controlHans de Goede
gspca_sonixj: Add light frequency control Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12090): gspca_sonixj: enable autogain control for the ov7620Hans de Goede
gspca_sonixj: enable autogain control for the ov7620, and not only make it enable autogain but also auto exposure (and do the same for the ov7648). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12089): gspca_sonixj: increase 640x480 frame-buffersizeHans de Goede
gspca_sonixj: increase 640x480 frame-buffersize, as I was getting buffer overflows during my testing of a "Premier" 0c45:613e cam Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12088): Mark the v4l1 uvcvideo quickcam messenger driver as deprecatedHans de Goede
Mark the v4l1 uvcvideo quickcam messenger driver as deprecated, the one cam it supports, is now also supported by the v4l2 gspca stv06xx driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12087): gspca_sonixj: enable support for 0c45:613e cameraHans de Goede
gspca_sonixj: enable support for 0c45:613e camera, and slightly tweak the ov7630 register init values for a much better picture. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12086): gspca_sonixj: Fix control index numberingHans de Goede
The control index defines for the gspca_sonixj driver were numbered wrong, causing us to disable the wrong controls on various sensors Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12085): gspca_ov519: constify ov518 inititial register value tablesHans de Goede
gspca_ov519: constify ov518 inititial register value tables Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12084): ov511: mark as deprecatedHans de Goede
Mark the v4l1 ov511 as deprecated as we now have ov511 support in the gspca ov519 driver. Note we should really also keep track of this in Documentation/feature-removal-schedule.txt, but that is not part of the v4l-dvb tree. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12083): ov511: remove ov518 usb id's from the driverHans de Goede
ov511: remove ov518 usb id's from the driver, as they have not been working ever since the decompression code got removed from the kernel, and they are no supported by the gspca_ov519 module. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12082): gspca_stv06xx: Add support for st6422 bridge and sensorHans de Goede
Add support for st6422 bridge and sensor to the stv06xx gspca sub driver, tested with: Logitech QuickCam Messenger 046d:08f0 ST6422 integrated Logitech QuickCam Mess. Plus 046d:08f6 ST6422 integrated Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12081): gspca_ov519: Cleanup some sensor special casesHans de Goede
gspca_ov519: Cleanup some sensor special cases Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12080): gspca_ov519: Fix ov518+ with OV7620AE (Trust spacecam 320)Hans de Goede
gspca_ov519: Fix ov518+ with OV7620AE (Trust spacecam 320) Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12079): gspca_ov519: add support for the ov511 bridgeHans de Goede
gspca_ov519: add support for the ov511 bridge Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12078): gspca_ov519: Better default contrast for ov6630Hans de Goede
Hmm, another one with an extra if (life sucks) the default contrast really is no good for the ov6630, it isn't even high enough in full daylight, this gives the ov6630 a different initial value for a better out of the box experience. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12077): gspca_ov519: Fix 320x240 with ov7660 sensorHans de Goede
As reported on the ov51x-jpeg list, and as I can confirm with my own cam the ov7670 in 320x240 has a number of broken columns of pixels at the left of the picture. This was not present in the old driver as it always used 640x480 and did software downscaling (took me a while to figure that one out). The fix adds a sensor specific if in so far sensor neutral code :( But this is the only way to fix this, this cannot be fixed by only changing sensor registers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12076): gspca_ov519: Fix led inversion with some camsHans de Goede
My ov519 cam has it led inverted, the same has been reported on the ov51x-jpeg list for another creative cam. This patch fixes this without changing the behaviour for other cams. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12075): gspca_ov519: check ov518 packet numbersHans de Goede
Check ov518 packet numbers to detect dropped packets. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12074): gspca_ov519: Add 320x240 and 160x120 support for cif sensor ↵Hans de Goede
cams gspca_ov519: Add 320x240 and 160x120 support for cif sensor cams Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12073): gspca_ov519: limit ov6630 qvif uv swap fix to ov66308AFHans de Goede
The fix for the UV swapping in qcif mode with the ov6630, which I did to fix this issue on a ov518 cam with an ov66308AF, causes UV swapping in qcif with another cam of mine with the ov518 and an ov66308AE, so this patch changes the code to differentiate between the ov66308AF and other ov6630 versions, and restricts the UV swap fix to the ov66308AF. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12072): gspca-ov519: add extra controlsHans de Goede
This patch adds autobrightness (so that it can be turned off to make the already present brightness control work) and light frequency filtering controls. The lightfreq control needed 2 different entries in the ctrls array, as the number of options differs depending on the sensor. Always one of the 2 entires is disabled ofcourse. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12071): gspca: fix NULL pointer deref in query_ctrlHans de Goede
gspca: fix NULL pointer deref in query_ctrl Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12010): cx88: Properly support Leadtek TV2000 XP GlobalMauro Carvalho Chehab
Fix Leadtek TV2000 XP Global entries and add missing PCI ID's. Thanks to Terry Wu <terrywu2009@gmail.com> for pointing us for the proper settings. Cc: Terry Wu <terrywu2009@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (27 commits) Blackfin: fix dma-mapping build errors Blackfin: hook up new perf_counter_open syscall Blackfin: drop BF535-specific text for exception 0x2A (unaligned instruction) Blackfin: fix early crash when booting on wrong cpu Blackfin: fix GPTMR0_CLOCKSOURCE dependency on BFIN_GPTIMERS Blackfin: drop unused ISP1760 port1_disable from board resources Blackfin: bf526-ezbrd: handle different SDRAM chips Blackfin: fix typo in TRAS define in mem_init.h header Blackfin: unify memory map headers Blackfin: stick the CPU name into boot image name Blackfin: update defconfigs Blackfin: decouple unrelated cache settings to get exact behavior Blackfin: update I-pipe patch level Blackfin: remove obsolete mcount support from I-pipe code Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipeline Blackfin: convert interrupt pipeline to irqflags Blackfin: allow people to select BF51x-0.1 silicon rev Blackfin: bf526-ezbrd: set SPI flash resources to SST device Blackfin: fix accidental reset in some boot modes Blackfin: abstract irq14 lowering in do_irq ...
2009-06-22Merge git://git.infradead.org/~dwmw2/iommu-2.6.31Linus Torvalds
* git://git.infradead.org/~dwmw2/iommu-2.6.31: intel-iommu: Fix one last ia64 build problem in Pass Through Support VT-d: support the device IOTLB VT-d: cleanup iommu_flush_iotlb_psi and flush_unmaps VT-d: add device IOTLB invalidation support VT-d: parse ATSR in DMA Remapping Reporting Structure PCI: handle Virtual Function ATS enabling PCI: support the ATS capability intel-iommu: dmar_set_interrupt return error value intel-iommu: Tidy up iommu->gcmd handling intel-iommu: Fix tiny theoretical race in write-buffer flush. intel-iommu: Clean up handling of "caching mode" vs. IOTLB flushing. intel-iommu: Clean up handling of "caching mode" vs. context flushing. VT-d: fix invalid domain id for KVM context flush Fix !CONFIG_DMAR build failure introduced by Intel IOMMU Pass Through Support Intel IOMMU Pass Through Support Fix up trivial conflicts in drivers/pci/{intel-iommu.c,intr_remapping.c}
2009-06-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: new stack is no longer experimental firewire: net: better FIFO address range check and rcodes firewire: net: fix card driver reloading firewire: core: fix iso context shutdown on card removal firewire: core: fix DMA unmapping in iso buffer removal firewire: net: adjust net_device ops firewire: net: remove unused code firewire: net: allow for unordered unit discovery firewire: net: style changes firewire: net: add Kconfig item, rename driver firewire: add IPv4 support