- Jan 11, 2012
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Tomasz Stanislawski authored
This patch allows new video drivers to work correctly with applications that use the old-style crop API. The old crop ioctl is emulated by using selection callbacks. Signed-off-by:
Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Tomasz Stanislawski authored
This patch adds a documentation for VIDIOC_{G/S}_SELECTION ioctl. Moreover, the patch adds the description of modeling of composing, cropping and scaling features in V4L2. Finally, some examples are presented. Signed-off-by: -
Tomasz Stanislawski authored
This patch adds images in binary format for the V4L2 selection API. Signed-off-by:
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Tomasz Stanislawski authored
This patch introduces new api for a precise control of cropping and composing features for video devices. The new ioctls are VIDIOC_S_SELECTION and VIDIOC_G_SELECTION. Signed-off-by:
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Antti Palosaari authored
Fix some issues pointed out by Mauro. Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Antti Palosaari authored
Allow use of that general callback for demod too. Signed-off-by:
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Antti Palosaari authored
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Antti Palosaari authored
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Antti Palosaari authored
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Antti Palosaari authored
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Sascha Sommer authored
The card definition of the Terratec Cinergy 200 USB uses the wrong tuner type. Therefore some channels are currently missing. Attached patch fixes this problem. Signed-off-by:
Sascha Sommer <saschasommer@freenet.de> Signed-off-by:
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Sascha Sommer authored
The MaxPacketSize for em2800 based devices is too small to capture at full resolution. Therefore scale down when the maximum frame size is selected. The previous workaround that simply reduced the X resolution cannot be used because it crops a part of the input as the em2800 can only scale down with a factor of 0.5. reverts commits 1ca31892 and fb3de039 . [mchehab@redhat.com: Fix CodingStyle] Signed-off-by:
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Sascha Sommer authored
writing the EM28XX_R06_I2C_CLK register leads to the problem that the i2c bus on the Terratec Cinergy 200 USB is no longer usable when the system is rebooted. The device needs to be unplugged in order to bring it back to life. Attached patch conditionally disables the write in em28xx_pre_card_setup() like it is already done in em28xx_card_setup(). Signed-off-by:
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Sascha Sommer authored
It looks like the return value check that is done after setting the I2C speed checks the wrong return code. Signed-off-by:
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Thomas Petazzoni authored
The 'struct em28xx *' pointer was passed by reference to the em28xx_init_dev() function, for no reason. Instead, just pass it by value, which is much more logical and simple. Signed-off-by:
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
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Jonathan Nieder authored
The af9005_properties and af9015_properties tables make use of USB ids from the USB id tables with hardcoded indices, as in "&af9015_usb_table[30]". Adding new entries before the end breaks such references, so everyone has had to carefully tiptoe to only add entries at the end of the list. In the spirit of "dw2102: use symbolic names for dw2102_table indices", use C99-style initializers with symbolic names for each index to avoid this. In the new regime, properties tables referring to the USB ids have names like "&af9015_usb_table[CINERGY_T_STICK_RC]" that do not change meaning when items in the USB id table are reordered. Encouraged-by:
Jonathan Nieder <jrnieder@gmail.com> Acked-by:
Luca Olivetti <luca@ventoso.org> Acked-by:
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Thomas Petazzoni authored
URBs allocated with usb_alloc_urb() are allocated from DMA-coherent areas, and therefore it is not necessary to call dma_map_single() on such buffers. Worst, on ARM, calling dma_map_single() on a DMA-coherent buffer will trigger a BUG_ON() in arch/arm/mm/dma-mapping.c. Therefore, we mark all URBs allocated with usb_alloc_urb() with the URB_NO_TRANSFER_DMA_MAP transfer_flags, so that the USB core does not do dma_map_single()/dma_unmap_single() on those buffers. This is similar to 882787ff for the gspca driver, and has already been discussed on the linux-media list in the past: http://www.mail-archive.com/linux-media@vger.kernel.org/msg37086.html . Signed-off-by:
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Thomas Petazzoni authored
The 'struct cx231xx *' pointer was passed by reference to the cx231xx_init_dev() function, for no reason. Instead, just pass it by value, which is much more logical and simple. Signed-off-by:
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Antti Palosaari authored
DVB-T did not work at all - only 6 MHz was working but it is not commonly used. Fix it. Signed-off-by:
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Mauro Carvalho Chehab authored
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Mauro Carvalho Chehab authored
The driver were using DEV_MISCONFIGURED on some places, and DEV_DISCONNECTED on others. In a matter of fact, DEV_MISCONFIGURED were set only during the usb disconnect callback, with was confusing. Also, the alsa driver never checks if the device is present, before doing some dangerous things. Remove DEV_MISCONFIGURED, replacing it by DEV_DISCONNECTED. Also, fixes the other usecases for DEV_DISCONNECTED. Signed-off-by: -
Mauro Carvalho Chehab authored
cx231xx_devused is racy. Re-implement it in a proper way, to remove the risk of mangling it. Signed-off-by: -
Mauro Carvalho Chehab authored
There are several weirdness at the unregister logic. First of all, IR has a poll thread. This thread needs to be removed, as it uses some resources associated to the main driver. So, the driver needs to explicitly unregister the I2C client for ir-kbd-i2c. If, for some reason, the driver needs to wait for a close() to happen, not all memories will be freed, because the free logic were in the wrong place. Also, v4l2_device_unregister() seems to be called too early, as devices are still using it. Finally, even with the device disconnected, there is one USB function call that will still try to talk with it. Signed-off-by: -
Mauro Carvalho Chehab authored
Reports the auto-detected parameters to userspace. Signed-off-by: -
Mauro Carvalho Chehab authored
If the device got removed, stops polling it. Also, un-registers it at input/evdev, as it won't work anymore. We can't free the IR structure yet, as the ir_remove method will be called later. Signed-off-by: -
Thomas Petazzoni authored
Now that we set the intfdata on the right interface, the 'lif' variable is useless. Signed-off-by:
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Thomas Petazzoni authored
The following sequence of commands was triggering a kernel crash in cdev_get(): modprobe cx231xx rmmod cx231xx modprobe cx231xx v4l2grab -n 1 The problem was that cx231xx_usb_disconnect() was not doing anything because the test: if (!dev->udev) return; was reached (i.e, dev->udev was NULL). This is due to the fact that the 'dev' pointer placed as intfdata into the usb_interface structure had the wrong value, because cx231xx_probe() was doing the usb_set_intfdata() on the wrong usb_interface structure. For some reason, cx231xx_probe() was doing the following: static int cx231xx_usb_probe(struct usb_interface *interface, const struct usb_device_id *id) { struct usb_interface *lif = NULL; [...] /* store the current interface */ lif = interface; [...] /* store the interface 0 back */ lif = udev->actconfig->interface[0]; [...] usb_set_intfdata(lif, dev); [...] retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); [...] } So, the usb_set_intfdata() was done on udev->actconfig->interface[0] and not on the 'interface' passed as argument to the ->probe() and ->disconnect() hooks. Later on, v4l2_device_register() was initializing the intfdata of the correct usb_interface structure as a pointer to the v4l2_device structure. Upon unregistration, the ->disconnect() hook was getting the intfdata of the usb_interface passed as argument... and casted it to a 'struct cx231xx *' while it was in fact a 'struct v4l2_device *'. The correct fix seems to just be to set the intfdata on the proper interface from the beginning. Now, loading/unloading/reloading the driver allows to use the device properly. Signed-off-by: -
Mauro Carvalho Chehab authored
As reported by Toralf: the build failed with : CC [M] drivers/media/dvb/dvb-core/dvb_ca_en50221.o In file included from arch/x86/include/asm/uaccess.h:573:0, from include/linux/poll.h:14, from drivers/media/dvb/dvb-core/dvbdev.h:27, from drivers/media/dvb/dvb-core/dvb_ca_en50221.h:27, from drivers/media/dvb/dvb-core/dvb_ca_en50221.c:41: In function "copy_from_user", inlined from "dvb_ca_en50221_io_write" at drivers/media/dvb/dvb-core/dvb_ca_en50221.c:1314:26: arch/x86/include/asm/uaccess_32.h:211:26: error: call to "copy_from_user_overflow" declared with attribute error: copy_from_user() buffer size is not provably correct Reported-by:Toralf Foerster <toralf.foerster@gmx.de> Signed-off-by:
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- Jan 07, 2012
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Mario Ceresa authored
Signed-off-by:
Mario Ceresa <mrceresa@gmail.com> Signed-off-by:
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Javier Martin authored
These callbacks allow a host video driver to poll video formats supported by tvp5150. Signed-off-by: -
Jonathan Nieder authored
The patch "dm1105: handle errors from dvb_net_init" moved the initialization of dvbnet to before frontend attachment but forgot to adjust the error handling when frontend attachment fails. Signed-off-by:
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Jonathan Nieder authored
This module does some printks with the loglevel missing. pr_err() takes care of adding the KERN_ERR tag and the module name. So we can simplify the code and add the missing printk loglevel by using it. Also add a #define pr_fmt() to make this work, and remove a few unnecessary periods at the end of messages and bump the loglevel of "Unknown bttv card type" from KERN_WARNING to KERN_ERR while at it. Inspired-by:
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Jonathan Nieder authored
This way, the messages will be tagged with KERN_DEBUG and not clutter the log from dmesg unless the "debug" module parameter is set. [mchehab@redhat.com: whitespace fixes] Signed-off-by:
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Jonathan Nieder authored
Lift assignments from "if" conditionals for readability. No change in functionality intended. Suggested-by:
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Stefan Ringel authored
Signed-off-by:
Stefan Ringel <linuxtv@stefanringel.de> Signed-off-by:
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Mauro Carvalho Chehab authored
This code is wrong as I should have coded it as SYS_DVBC, instead of SYS_DVBS & friends. Anyway, this check has other problems 1) it does some "magic" by assuming that all QAM modulations are below QAM_AUTO; 2) it checks modulation parameters only for one delivery system. Or the core should check invalid parameters for all delivery systems, or it should let the frontend drivers do it; 3) frontend drivers should already be checking for invalid parameters (most of them do it, anyway); 4) not all modulations are mapped at fe->ops.info.caps, so it is not even possible to check for the valid modulations inside the core for some delivery systems; 5) The core check is incomplete anyway: it only checks for a few parameters. If moved into the core other parameters like bandwidth and fec should also be checked; 6) 2nd gen DVB-C uses OFDM. So, that test would fail for it. Signed-off-by: -
Mauro Carvalho Chehab authored
As reported by Oliver, some old dead code were preserved there. Thanks-to: Oliver endriss <o.endriss@gmx.de> Signed-off-by: -
Istvan Varga authored
Add support for two new types of Leadtek Winfast TV 2000XP tuner The author of this patch is Istvan Varga. Only resending current reformated version against current git. Signed-off-by:
Miroslav Slugen <thunder.mmm@gmail.com> Signed-off-by:
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Dan Carpenter authored
If ctrls->count is too high the multiplication could overflow and array_size would be lower than expected. Mauro and Hans Verkuil suggested that we cap it at 1024. That comes from the maximum number of controls with lots of room for expantion. $ grep V4L2_CID include/linux/videodev2.h | wc -l 211 Cc: stable <stable@vger.kernel.org> Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Dan Carpenter authored
Smatch complains that i can be one passed the end of the array if we don't hit the break statement. We should be using the "audio" here like we do in the other places. Signed-off-by:
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