- 22 Mar, 2011 40 commits
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Andy Walls authored
This is a major change to add pointer reference counting for struct IR, struct IR_tx, and struct IR_rx object instances. This ref counting gets lirc_zilog closer to gracefully handling bridge drivers and hot-unplugged USB devices disappearing out from under lirc_zilog when the /dev/lircN node is still open. (mutexes to protect the i2c_client pointers in struct IR_tx and struct IR_rx still need to be added.) This reference counting also helps lirc_zilog clean up properly when the i2c_clients disappear. Signed-off-by:
Andy Walls <awalls@md.metrocast.net> Signed-off-by:
Jarod Wilson <jarod@redhat.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Andy Walls authored
ir_probe() makes a number of constant assignments into the lirc_driver object after copying in a template. Make better use of the template. Signed-off-by:
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Andy Walls authored
Always allocate a lirc_buffer object, instead of just upon setup of the Rx i2c_client. If we do not allocate a lirc_buffer object, because we are not handling the Rx i2c_client, lirc_dev will allocate its own lirc_buffer anyway and not tell us about its location. Signed-off-by:
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Andy Walls authored
Remove the rx->buf_lock that protected the rx->buf lirc_buffer. The underlying operations on the objects within the lirc_buffer are already protected by spinlocks, or the objects are constant (e.g. chunk_size). Signed-off-by:
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Andy Walls authored
There is no need to take the rx->buf_lock in the the poll() function as all the underling calls made on objects in the rx->buf lirc_buffer object are protected by spinlocks. Corrected a bad error return value in poll(): return POLLERR instead of -ENODEV. Added some comments to poll() for when, in the future, I forget what poll() and poll_wait() are supposed to do. [Jarod: minor debug spew fix] Signed-off-by:
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Andy Walls authored
lirc_zilog had its own llseek stub that returned -ESPIPE. Get rid of it and use the kernel's no_llseek() and nonseekable_open() functions instead. Signed-off-by:
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Andy Walls authored
The open count is simply used for deciding if the Rx polling thread needs to poll the IR chip for userspace. Simplify the manipulation of the open count by using an atomic_t and not requiring a lock The polling thread errantly didn't try to take the lock anyway. Signed-off-by:
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Andy Walls authored
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Andy Walls authored
The set_use_inc() and set_use_dec() functions tried to lock the underlying bridge driver device instance in memory by changing the use count on the device's i2c_clients. This worked for PCI devices (ivtv, cx18, bttv). It doesn't work for hot-pluggable usb devices (pvrusb2 and hdpvr). With usb device instances, the driver may get locked into memory, but the unplugged hardware is gone. The set_use_inc() set_use_dec() functions also tried to have lirc_zilog change its own module refernce count, which is racy and not guaranteed to work. The lirc_dev module does actually perform proper module ref count manipulation on the lirc_zilog module, so there is need for lirc_zilog to attempt a buggy module get on itself anyway. lirc_zilog also errantly called these functions on itself in open() and close(), but lirc_dev did that already too. So let's just gut the bodies of the set_use_*() functions, and remove the extra calls to them from within lirc_zilog. Proper reference counting of the struct IR, IR_rx, and IR_tx objects -- to handle the case when the underlying bttv, ivtv, cx18, hdpvr, or pvrusb2 bridge driver module or device instance goes away -- will be added in subsequent patches. Signed-off-by:
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Andy Walls authored
This reverts commit 8090232a and adds an additional check for ir->tx == NULL. The user may need us to handle an RX only unit. Apparently there are TV capture units in existence with Rx only wiring and/or RX only firmware for the on-board Zilog Z8 IR unit. Signed-off-by:
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Jarod Wilson authored
Make the hdpvr's i2c master implementation more closely mirror that of the pvrusb2 driver. Currently makes no significant difference in IR reception behavior with ir-kbd-i2c (i.e., it still sucks). Signed-off-by:
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Jarod Wilson authored
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Jarod Wilson authored
Reported-by:
Daniel Burr <dburr@topcon.com> Signed-off-by:
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Dmitri Belimov authored
Add compatibility for composite and s-video inputs. Some TV cards hasn't it. Fix S-Video input, the s-video cable has only video signals no audio. Call the function of audio configure kill chroma in signal. only b/w video. Known bugs: - after s-video the audio for radio didn't work, TV crashed hardly - after composite TV crashed hardly too. P.S. After this patch I'll want to rework the procedure of configure video. Now it has a lot of junk and dubles. With my best regards, Dmitry. Signed-off-by:Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> Signed-off-by:
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Juan J. Garcia de Soria authored
Remove older drivers lirc_it87 and lirc_ite8709 from the LIRC staging area, since they're now superceded by ite-cir. Signed-off-by:
Juan J. Garcia de Soria <skandalfo@gmail.com> Tested-by:
Stephan Raue <stephan@openelec.tv> Signed-off-by:
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Mauro Carvalho Chehab authored
Cc: Juan J. Garcia de Soria <skandalfo@gmail.com> Cc: Stephan Raue <stephan@openelec.tv> Cc: Jarod Wilson <jarod@redhat.com> Signed-off-by: -
Juan J. Garcia de Soria authored
This is a second version of an rc-core based driver for the ITE Tech IT8712F CIR and now for a pair of other variants of the IT8512 CIR too. This driver should replace the lirc_it87 and lirc_ite8709 currently living in the LIRC staging directory. The driver should support the ITE8704, ITE8713, ITE8708 and ITE8709 (this last one yet untested) PNP ID's. The code doesn'te reuse code from the pre-existing LIRC drivers, but has been written from scratch using the nuvoton.cir driver as a skeleton. This new driver shouldn't exhibit timing problems when running under load (or with interrupts disabled for relatively long times). It works OOTB with the RC6 MCE remote bundled with the ASUS EEEBox. TX support is implemented, but I'm unable to test it since my hardware lacks TX capability. Signed-off-by:
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Mauro Carvalho Chehab authored
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Steven Rostedt authored
As the code in saa7134-input is not a module, but the config for it is set as a boolean instead of a tristate, this causes a strange dependency on RC_CORE. VIDEO_SAA7134_RC (which determines if saa7134-input.o is built) depends on RC_CORE and VIDEO_SAA7134. If VIDEO_SAA7134 is compiled as 'y' but RC_CORE is compiled as 'm' VIDEO_SAA7134_RC can still be set to 'y' which causes undefined symbols that it needs from RC_CORE. The simplest solution is to not allow VIDEO_SAA7134_RC be enabled if RC_CORE compiled as a module (m) and VIDEO_SA7134 is compiled into the kernel (y). Suggested-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
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Malcolm Priestley authored
status now returns FE_HAS_CARRIER FE_HAS_SIGNAL FE_HAS_VITERBI Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by:
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Jean-François Moine authored
Signed-off-by:
Jean-François Moine <moinejf@free.fr> Signed-off-by:
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Patrice Chotard authored
This patch fixes a bug in gspca, more precisely in alt_xfer(). This function looks for an input transfer endpoint in an alternate setting. By default it returns the first endpoint corresponding to the transfer type indicated in parameter. But with some USB devices, the first endpoint corresponding to the transfer type is not always an INPUT endpoint but an OUTPUT one. This patch adds the endpoint direction test to be sure to return an INPUT endpoint Signed-off-by:
Patrice CHOTARD <patricechotard@free.fr> Signed-off-by:
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Jean-François Moine authored
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Jean-François Moine authored
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Jean-François Moine authored
No 352x288 for Ds3303 and no 320x240 for Generic802. Signed-off-by:
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Jean-François Moine authored
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Jean-François Moine authored
The autogain now uses common functions. Signed-off-by:
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Jean-François Moine authored
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Jean-François Moine authored
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Jean-François Moine authored
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Hans Verkuil authored
Rather than guess which driver supports core priority handling, require drivers that do to explicitly set the V4L2_FL_USE_FH_PRIO flag in video_device. Updated the core prio handling accordingly and set the flag in the three drivers that do. Signed-off-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
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Hans Verkuil authored
ivtv-ioctl cast the 'void *fh' directly to 'ivtv_open_id *'. This should be done properly with a contained_of since the 'void *fh' is really a 'struct v4l2_fh *'. It worked because the v4l2_fh field is also the first field in the ivtv_open_id struct, but it is not clean code. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
Use core-assisted locking so .ioctl can be replaced by .unlocked_ioctl. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
The video_device struct has proper ref counting and its release function will be called when the last user releases it. But no such support was available for struct v4l2_device. This made it hard to determine when a USB driver can release the device if it has multiple device nodes. With one device node it is easy of course, since when the device node is released, the whole device can be released. This patch adds refcounting to v4l2_device. When registering device nodes the v4l2_device refcount will be increased, when releasing device nodes it will be decreased. The (optional) release function will be called when the last device node was released. Signed-off-by:
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Hans Verkuil authored
VIDIOC_S/G_PRIORITY handling is now done by the v4l2 core framework. Signed-off-by:
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Hans Verkuil authored
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