- 11 Jan, 2012 1 commit
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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:Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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- 10 Jan, 2012 1 commit
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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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- 07 Jan, 2012 11 commits
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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:
Jonathan Nieder <jrnieder@gmail.com> 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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- 06 Jan, 2012 27 commits
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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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Dan Carpenter authored
This is just a cleanup, it doesn't change how the code works. These are compound conditions and not bitwise operations so it should be && and not &. Signed-off-by:
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Miroslav Slugen authored
Leadtek DTV2000H J has Philips a FMD1216MEX tuner, and not a FMD1216ME. Signed-off-by:
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Gianluca Gennari authored
This patch replaces the previous one proposed in the thread "xc3028: force reload of DTV7 firmware in VHF band with Zarlink demodulator", at the linux-media@vger.kernel.org ML. The problem is that the firmware DTV78 works fine in UHF band (8 MHz bandwidth) but is not working at all in VHF band (7 MHz bandwidth). Reading the comments inside the code, I figured out that the real problem could be connected to the formula used to calculate the center frequency offset in VHF band. In fact, removing this adjustment fixes the problem: if ((priv->cur_fw.type & DTV78) && freq < 470000000) offset -= 500000; This is coherent to what was implemented for the DTV7 firmware by an Australian user: if (priv->cur_fw.type & DTV7) offset += 500000; In the end, now the center frequency is the same for all firmwares (DTV7, DTV8, DTV78) and doesn't depend on channel bandwidth. The final code looks clean and simple, and there is no need for any "magic" adjustment: if (priv->cur_fw.type & DTV6) offset = 1750000; else /* DTV7 or DTV8 or DTV78 */ offset = 2750000; Signed-off-by:
Gianluca Gennari <gennarone@gmail.com> Signed-off-by:
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Fabio Estevam authored
Fix the following build warning: warning: (RADIO_WL128X) selects TI_ST which has unmet direct dependencies (MISC_DEVICES && NET && GPIOLIB) Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
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Fabio Estevam authored
Fix the following build warning: warning: (MEDIA_TUNER) selects MEDIA_TUNER_TEA5761 which has unmet direct dependencies (MEDIA_SUPPORT && VIDEO_MEDIA && I2C && EXPERIMENTAL) Signed-off-by:
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Malcolm Priestley authored
On Thu, 2011-12-15 at 16:42 +0000, Malcolm Priestley wrote: > > [ 1103.536156] it913x: Chip Version=ec Chip Type=5830 > > [ 1104.336178] it913x: Dual mode=92 Remote=92 Tuner Type=92 > > [ 1106.248116] dvb-usb: found a 'ITE 9135(9006) Generic' in cold state, > > will try to load a firmware > > [ 1106.253773] dvb-usb: downloading firmware from file > > 'dvb-usb-it9135-02.fw' > > [ 1106.452123] it913x: FRM Starting Firmware Download > > [ 1130.756039] it913x: FRM Firmware Download Failed (ffffff92) > > [ 1130.956168] it913x: Chip Version=79 Chip Type=5823 > > [ 1131.592192] it913x: DEV it913x Error > > [ 1131.592271] usbcore: registered new interface driver it913x > > > > No frontend is generated anyway. > > Looks like the the firmware is not at all compatible with your device. > > Have you applied the patch cleanly to the latest media_build? > > These appear to be new version of the 9006. A supplier is sending me one > of these devices. > > As a last resort see if the device works with dvb-usb-it9137-01.fw > > You will have force to use this firmware > dvb-usb-it913x firmware=1 Here is a modified firmware loader for version 2 types. The firmware must be as in original ./dvb_get_firmware it9135 dd if=dvb-usb-it9135.fw ibs=1 skip=12866 count=5817 of=dvb-usb-it9135-02.fw Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by:
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Gianluca Gennari authored
This patch fixes an obvious typo in the get_frontend() function of the af9013 driver, recently rewritten by Antti Palosaari. Signed-off-by:
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Mauro Carvalho Chehab authored
By accident, I added an extra comma at the printk format argument. Signed-off-by: -
Malcolm Priestley authored
Add BER monitoring with Pre-Viterbi error rate. Add UCBLOCKS based on Aborted packets. Signed-off-by:
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Malcolm Priestley authored
Correction to tuner ID 0x51. Don't force tuner ID 0x60 unless eprom data zero. Signed-off-by:
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Don Kramer authored
Adds support for the Plextor ConvertX PX-AV100U, which uses the eMPIA EM2820 chip. The device has a device_id of '0x093b, 0xa003'. I am using the existing EM2820_BOARD_PINNACLE_DVC_90 board profile, as the Pinnacle Dazzle DVC 90/100/101/107, Kaiser Baas Video to DVD maker, and Kworld DVD Maker 2 were already mapped to it. Some more background on the device and my testing can be found at http://www.donkramer.net/plextor_122710.pdfSigned-off-by:
Don Kramer <dgkramer@comcast.net> Signed-off-by:
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Malcolm Priestley authored
Some channels appear weak signal after warm boot. Because tuner id is not present in eprom 0x38 is assigned. 9006 devices are now always assigned 0x60. Signed-off-by:
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Malcolm Priestley authored
Fixes issues with PID filter Stalling of some channels when PID is on. PID filter not turning off fully. PID filter can now turn on and off each index. Removed PID_RST from it913x_pid_filter_ctrl. Replaced with PID_EN removed from it913x_pid_filter Signed-off-by:
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Sylwester Nawrocki authored
The VIDIOC_LOG_STATUS ioctl allows to dump the current status of a driver to the kernel log. Currently this ioctl is only available at video device nodes and the subdevs rely on the host driver to expose their core.log_status operation to user space. This patch adds VIDIOC_LOG_STATUS support at the sub-device nodes, for standalone subdevs that expose their own /dev entry. Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Sylwester Nawrocki authored
The following ioctl sequence causes fimc_dma_run() to start processing without complete scaler and DMA initialization which causes missing interrupt and blocking on DQBUF: S_FMT, STREAMON, QBUF, DQBUF, STREAMOFF, STREAMON, QBUF, DQBUF. Fix this regression caused by moving pm_runtime* calls to start/stop_streaming callback by making sure the fimc_m2m_resume() is always invoked when expected. Reported-by:
Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by:
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Jonathan Nieder authored
It is not common for dvb_net_init to fail, but after the patch "dvb_net_init: return -errno on error" it can fail due to running out of memory. Handle this. From an audit of dvb_net_init callers. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
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Jonathan Nieder authored
From an audit of dvb_net_init callers, now that that function returns -errno on error. Signed-off-by:
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Jonathan Nieder authored
Clean up and error out if dvb_net_init fails (for example due to ENOMEM). This involves moving the dvb_net_init call to before frontend_init to make cleaning up a little easier. From an audit of dvb_net_init callers, now that dvb_net_init lets callers know about errors. Signed-off-by:
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Jonathan Nieder authored
Clean up and error out if dvb_net_init fails (for example when running out of memory). From an audit of dvb_net_init callers, now that dvb_net_init has learned to return a nonzero value from time to time. [mchehab.redhat.com: codingstyle fix: printk() should include KERN_ facility level] Signed-off-by:
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Jonathan Nieder authored
Bail out if dvb_net_init encounters an error (for example an out-of-memory condition), now that it reports them. [mchehab@redhat.com: CodingStyle fix: don't use "if ((ret = foo()) < 0)"] Signed-off-by:
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Jonathan Nieder authored
Avoid some repetition by adopting the usual "goto err" idiom for error handling. Signed-off-by:
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Jonathan Nieder authored
Repeating the same cleanup code in each error handling path makes life unnecessarily difficult for reviewers, who much check each instance of the same copy+pasted code separately. A "goto" to the end of the function is more maintainable and conveys the intent more clearly. While we're touching this code, also lift some assignments from "if" conditionals for simplicity. No functional change intended. Signed-off-by:
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Jonathan Nieder authored
videobuf_dvb_register_bus relies on dvb_net_init to set dvbnet->dvbdev on success, but ever since commit fcc8e7d8 ("dvb_net: Simplify the code if DVB NET is not defined"), ->dvbdev is left unset when networking support is disabled. Therefore in such configurations videobuf_dvb_register_bus always returns failure, tripping little-tested error handling paths and preventing the device from being initialized and used. Now that dvb_net_init returns a nonzero value on error, we can use that as a more reliable error indication. Do so. Now your card be used with CONFIG_DVB_NET=n, and the kernel will pass on a more useful error code describing what happened when CONFIG_DVB_NET=y but dvb_net_init fails due to resource exhaustion. Reported-by:
David Fries <David@Fries.net> Signed-off-by:
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Jonathan Nieder authored
dvb_net_init unconditionally returns 0. Callers such as videobuf_dvb_register_frontend examine dvbnet->dvbdev instead of the return value to tell whether the operation succeeded. If it has been set to a valid pointer, success; if it was left equal to NULL, failure. Alas, there is an edge case where that logic does not work as well: when network support has been compiled out (CONFIG_DVB_NET=n), we want dvb_net_init and related operations to behave as no-ops and always succeed, but there is no appropriate value to which to set dvb->dvbdev to indicate this. Let dvb_net_init return a meaningful error code, as preparation for adapting callers to look at that instead. The only immediate impact of this patch should be to make the few callers that already check for an error code from dvb_net_init behave a little more sensibly when it fails. Signed-off-by:
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Malcolm Priestley authored
Turn the pid filter off by caps option only. This is so the full stream is passed to demuxer and not limited by pid count. Signed-off-by:
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Hans Verkuil authored
The function v4l2_device_register() is called too late in vpif_probe(). This meant that vpif_obj.v4l2_dev is accessed before it is initialized which caused a crash. This used to work in the past, but video_register_device() is now actually using the v4l2_dev pointer. Note that vpif_display.c doesn't have this bug, there v4l2_device_register() is called at the beginning of vpif_probe. Signed-off-by:
Georgios Plakaris <gplakari@cisco.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Acked-by:
Manjunath Hadli <Manjunath.hadli@ti.com> Signed-off-by:
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