- 18 Apr, 2012 2 commits
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Xi Wang authored
A large cs->count from userspace may overflow the allocation size, leading to memory corruption. try_set_ext_ctrls() can be reached from subdev_do_ioctl() or __video_do_ioctl(). Use kmalloc_array() to avoid the overflow. Signed-off-by:
Xi Wang <xi.wang@gmail.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Xi Wang authored
A large cs->count from userspace may overflow the allocation size, leading to memory corruption. v4l2_g_ext_ctrls() can be reached from subdev_do_ioctl() or __video_do_ioctl(). Use kmalloc_array() to avoid the overflow. Signed-off-by:
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- 11 Apr, 2012 7 commits
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Srinivas Kandagatla authored
kfifo_avail expands to __kfifo_max_r which is not an exported symbol. Any kernel module using kfifo_avail will result in build failures because of this. This patch just exports __kfifo_max_r symbol to fix such problems in future. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@st.com> Acked-by:
Stefani Seibold <stefani@seibold.net> Signed-off-by:
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Alan McIvor authored
The default_value for the Bt878 V4L2_CID_CONTRAST control is currently set to 32768. Internally this gets translated to an analog input circuit gain of 1.19. However, the default gain should be 1.0. This patch alters the default value to 27648 which corresponds to a gain of 1.0. It also alters the probe routine so that the correct value is written on board initialisation. [mchehab@redhat.com: behavior confirmed via Fusion 878a datasheet] Signed-off-by:
Alan McIvor <alan.mcivor@reveal.co.nz> Signed-off-by:
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Anssi Hannula authored
Add support for another Medion X10 remote. This was apparently originally used with the Medion Digitainer box, but is now sold separately without any Digitainer labeling. A peculiarity of this remote is a scrollwheel in place of up/down buttons. Each direction is mapped to 8 different scancodes, each corresponding to 1..8 notches, allowing multiple notches to the same direction to be transmitted in a single scancode. The driver transforms the multi-notch scancodes to multiple events of the single-notch scancode. (0x70..0x77 = 1..8 notches down, 0x78..0x7f = 1..8 notches up) Since the scrollwheel scancodes are the same that are used for mouse on some other X10 (ati_remote) remotes, the driver will now check whether the active keymap has a keycode defined for the single-notch scancode when a mouse/scrollwheel scancode (0x70..0x7f) is received. If set, scrollwheel is assumed, otherwise mouse is assumed. This remote ships with a different receiver than the already supported Medion X10 remote, but they share the same USB ID. The only difference in the USB descriptors is that the Digitainer receiver has the Remote Wakeup bit set in bmAttributes of the Configuration Descriptor. Therefore that is used to select the default keymap. Thanks to Stephan Raue from OpenELEC (www.openelec.tv) for providing me both a Medion X10 Digitainer remote+receiver and an already supported Medion X10 remote+receiver. Thanks to Martin Beyss for providing some useful information about the remote (including the "Digitainer" name). This patch has been tested by both of them and myself. Signed-off-by:
Anssi Hannula <anssi.hannula@iki.fi> Tested-by:
Stephan Raue <stephan@openelec.tv> Tested-by:
Martin Beyss <Martin.Beyss@rwth-aachen.de> Signed-off-by:
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Anssi Hannula authored
Currently the ati_remote default keymap is selected directly based on the USB device id. Add support for instead specifying a function returning the default keymap, allowing more complex selection logic to be added when needed. This will be used for Medion X10 remotes in a following commit. Signed-off-by:
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Sylwester Nawrocki authored
This patch fixes following compilation warning: Error: no ID for constraint linkend: v4l2-jpeg-chroma-subsampling. and adds missing JPEG control class at the Table A.58. Signed-off-by:
Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Signed-off-by:
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Uwe Kleine-König authored
As long as there is no other non-const variable marked __initdata in the same compilation unit it doesn't hurt. If there were one however compilation would fail with error: $variablename causes a section type conflict because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Tomasz Stanislawski <t.stanislaws@samsung.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-media@vger.kernel.org Signed-off-by:
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Liu Ying authored
This patch contains code change only to remove redundant code to set priv->crop_rect.width/height in probe function. Signed-off-by:
Liu Ying <Ying.Liu@freescale.com> Acked-by:
Chris Lalancette <clalancette@gmail.com> Signed-off-by:
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- 10 Apr, 2012 31 commits
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Ezequiel García authored
Signed-off-by:
Ezequiel Garcia <elezegarcia@gmail.com> [mchehab@redhat.com: Changed the default to follow the em28xx selection] Signed-off-by:
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Ezequiel García authored
This functions are no longer used from another file, so they should be declared as static. Also is it necessary to move some of them before they are used, since they are no longer header-declared. Signed-off-by:
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Ezequiel García authored
This function is only used in em28xx-input.c so it makes no sense to have it anywhere but in em28xx-input.c. Signed-off-by:
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Ezequiel García authored
Moving this helps isolating em28xx_input and will help converting it into a separate module. Signed-off-by:
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Ezequiel García authored
Those functions will be needed by em28xx-input module, to be added on the next patches. Signed-off-by:
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Jesper Juhl authored
If, in drivers/staging/media/as102/as102_fw.c::as102_fw_upload(), the call cmd_buf = kzalloc(MAX_FW_PKT_SIZE, GFP_KERNEL); should fail and return NULL so that we jump to the 'error:' label, then we'll end up calling 'release_firmware(firmware);' with 'firmware' still uninitialized - not good. The easy fix is to just initialize 'firmware' to NULL when we declare it, since release_firmware() deals gracefully with being passed NULL pointers. Signed-off-by:
Jesper Juhl <jj@chaosbits.net> Signed-off-by:
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Ezequiel García authored
dev->ctl_input() is always set before a call to video_mux(), but then video_mux() sets it again with the same value. Signed-off-by:
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Ondrej Zary authored
Add PnP support to radio-gemtek for AOpen FX-3D/Pro Radio card (AD1816 + Gemtek radio). Signed-off-by:
Ondrej Zary <linux@rainbow-software.org> Signed-off-by:
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Ondrej Zary authored
Add PnP support to the new ISA radio framework. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Sakari Ailus authored
These two IOCTLS are obsoleted by VIDIOC_SUBDEV_G_SELECTION and VIDIOC_SUBDEV_S_SELECTION. Mark them obsolete. Signed-off-by:
Sakari Ailus <sakari.ailus@iki.fi> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Sakari Ailus authored
Add documentation for V4L2 subdev selection API. This changes also experimental V4L2 subdev API so that scaling now works through selection API only. Signed-off-by:
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Sakari Ailus authored
Add svga and dia files for V4L2 subdev selections documentation. Signed-off-by:
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Gianluca Gennari authored
Get rid of several unused parameters in struct em28xx_usb_isoc_ctl. Signed-off-by:
Gianluca Gennari <gennarone@gmail.com> Signed-off-by:
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Gianluca Gennari authored
Stop the URBs in em28xx_stop_streaming(), so that em28xx_irq_callback() cannot be called after the streaming has stopped. This should eliminate the crashes reported by Antti Palosaari and the warnings reported by Andy Furniss. Signed-off-by:
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Bhupesh Sharma authored
This patch removes the non-required spinlock acquire/release calls on 'queue_irqlock' from 'uvc_queue_next_buffer' routine. This routine is called from 'video->encode' function (which translates to either 'uvc_video_encode_bulk' or 'uvc_video_encode_isoc') in 'uvc_video.c'. As, the 'video->encode' routines are called with 'queue_irqlock' already held, so acquiring a 'queue_irqlock' again in 'uvc_queue_next_buffer' routine causes a spin lock recursion. Signed-off-by:
Bhupesh Sharma <bhupesh.sharma@st.com> Acked-by:
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Konstantin Khlebnikov authored
Signed-off-by:
Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: linux-media@vger.kernel.org Cc: devel@driverdev.osuosl.org Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: John Stultz <john.stultz@linaro.org> Cc: "Arve Hjønnevåg" <arve@android.com> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Dan Carpenter authored
copy_in_user() already checks for write permission, so we don't need to do it here. This was added in 1a5e4c86 "[media] uvcvideo: Implement compat_ioctl32 for custom ioctls". Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
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Srinivas Kandagatla authored
This patch removes BUG_ON in ir_raw_event_thread which IMO is a over-kill, and this kills the ir_raw_event_thread too. With a bit of additional logic in this patch, we nomore need to kill this thread. Other disadvantage of having a BUG-ON is, wake_up_process(dev->raw->thread) called on dead thread via ir_raw_event_handle will result in total lockup in SMP system. Advantage of this patch is ir-raw event thread is left in a usable state even if the fifo does not have enough bytes. This patch sets the thread into TASK_INTERRUPTIBLE if raw-fifo has less then sizeof(struct ir_raw_event) bytes. Signed-off-by:
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Javier Martin authored
Userptr can be very useful if this device is requested to use video buffers allocated by another processing device. So that buffers don't need to be copied. Signed-off-by:
Javier Martin <javier.martin@vista-silicon.com> Signed-off-by:
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Gianluca Gennari authored
The lirc sasem and imon drivers now use the module_usb_driver macro, so the old init/exit function prototypes are useless. This patch eliminates this warnings: media_build/v4l/lirc_imon.c:74:19: warning: 'imon_init' declared 'static' but never defined [-Wunused-function] media_build/v4l/lirc_imon.c:75:20: warning: 'imon_exit' declared 'static' but never defined [-Wunused-function] media_build/v4l/lirc_sasem.c:84:19: warning: 'sasem_init' declared 'static' but never defined [-Wunused-function] media_build/v4l/lirc_sasem.c:85:20: warning: 'sasem_exit' declared 'static' but never defined [-Wunused-function] Signed-off-by:
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Sylwester Nawrocki authored
In this driver there are several entities associated with separate platform or I2C client devices, which may get probed in random order. When the platform device bound to the media device driver is probed all other entity drivers need to be already in place and initialized. If any of them is not, fail the media device probe and return an error indicating we need to be retried once any new driver gets registered. The media device driver probe will not succeed until there are available all needed sub-drivers, as specified in the platform data. While at it, make sure the s5p-csis module (MIPI-CSI receiver driver) does not get unloaded when in use, by guarding its usage with try_module_get/module_put. This patch is a prerequisite for adding the device tree support. It now also allows again to unbind/bind the driver at runtime from user space via sysfs. 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
irq is used only locally and num_clocks is constant, so remove them. Signed-off-by:
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Sylwester Nawrocki authored
Remove redundant H/W setup logic by merging fimc_prepare_config() and the device_run() callback. Signed-off-by:
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Sylwester Nawrocki authored
Access to the memory-to-memory video node is serialized through a mutex so now there is no point in having per device context structure spinlock. Signed-off-by:
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Sylwester Nawrocki authored
This patch prevents blocking on DQBUF at a video capture node in some conditions, after STREAOMOFF/STREAMON sequence. The ST_CAPT_SUSPEND flag should not be set during normal stream off, otherwise the capture engine is not properly enabled at stream on. Reported-by:
Bernard Debbasch <b.debbasch@ssi.samsung.com> Signed-off-by:
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Sylwester Nawrocki authored
The MIPI-CSI2 data alignment parameter can be derived from media bus pixel code, so it can be now dropped from the platform data structure. This is a prerequisite for adding the device tree support. Once this patch is merged the corresponding fields will be removed from the drivers' public headers and corresponding board files. Signed-off-by:
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Sakari Ailus authored
Fall back to s_selection if s_crop isn't implemented by a driver. Same for g_selection / g_crop. Signed-off-by:
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Sakari Ailus authored
Unify functions to get try pointers and validate the pad number accessed by the user. Signed-off-by:
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Sakari Ailus authored
vdev_to_v4l2_subdev() should return struct v4l2_subdev *, not void *. Fix this. Signed-off-by:
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Sakari Ailus authored
Add support for VIDIOC_SUBDEV_S_SELECTION and VIDIOC_SUBDEV_G_SELECTION IOCTLs. They replace functionality provided by VIDIOC_SUBDEV_S_CROP and VIDIOC_SUBDEV_G_CROP IOCTLs and also add new functionality (composing). VIDIOC_SUBDEV_G_CROP and VIDIOC_SUBDEV_S_CROP continue to be supported. Signed-off-by:
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Sakari Ailus authored
Add an integer menu test control for the vivi driver. Signed-off-by:
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