- 13 May, 2014 10 commits
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Sakari Ailus authored
When the sub-device is registered, increment the use count of the sub-device owner only if it's different from the owner of the driver for the media device. This avoids increasing the use count by the module itself and thus making it possible to unload it when it's not in use. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Mauro Carvalho Chehab <m.chehab@samsung.com>
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Sakari Ailus authored
mdev->fops->owner is actually the owner of the very same module which implements media_device_register(), so it can't be unloaded anyway. Instead, use THIS_MODULE through a macro as does video_register_device(). Signed-off-by:
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Sakari Ailus authored
VIDIOC_SUBDEV_[GS]_FRAME_INTERVAL IOCTLs argument structs contain the pad field but the validity check was missing. There should be no implications security-wise from this since no driver currently uses the pad field in the struct. Signed-off-by:
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Hans Verkuil authored
Create consistent _vbq suffix for videobuf_queue fields. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Hans Verkuil authored
This is already available from saa7134_dev. Signed-off-by:
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Hans Verkuil authored
Don't calculate this for every buffer, store it globally instead. Signed-off-by:
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Hans Verkuil authored
This will make the next patch a bit easier to read. Signed-off-by:
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Hans Verkuil authored
saa7134-alsa used low-level videobuf functions to allocate and sync DMA buffers. Replace this with saa7134-specific code. These functions will not be available when we convert to vb2. Signed-off-by:
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Hans Verkuil authored
Just white space and coding style changes to reduce the noise in the following patches. Signed-off-by:
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Hans Verkuil authored
This solves this bug: https://bugzilla.kernel.org/show_bug.cgi?id=73361 The problem is that when you quit tvtime it calls STREAMOFF, but then it queues a bunch of buffers for no good reason before closing the file descriptor. In the past closing the fd would free the vb queue since that was part of the file handle struct. Since that was moved to the global struct that no longer happened. This wouldn't be a problem, but the extra QBUF calls that tvtime does meant that the buffer list in videobuf (q->stream) contained buffers, so REQBUFS would fail with -EBUSY. The solution is to init the list head explicitly when releasing the file descriptor and to not free the video resource when calling streamoff. The real fix will hopefully go into kernel 3.16 when the vb2 conversion is merged. Basically the saa7134 driver with the old videobuf is so full of holes it ain't funny anymore, so consider this a band-aid for kernels 3.14 and 15. Signed-off-by:
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- 23 Apr, 2014 28 commits
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Sakari Ailus authored
Signed-off-by:
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Sakari Ailus authored
The register address, width and flags are encoded as a 32-bit value. Add macros for obtaining these separately. Use the macros in register access functions. Signed-off-by:
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Sakari Ailus authored
Add a quirk for diverting registers for on some sensors, even the standard registers are not where they can be expected to be found. Add a quirk to to help using such sensors. smiapp_write_no_quirk() and smiapp_read_no_quirk() functions are provided for the use of quirk implementations. Signed-off-by:
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Sakari Ailus authored
This is more flexible. Quirk flags may be affected by configuration. Signed-off-by:
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Sakari Ailus authored
No reason to keep this u8, really. Signed-off-by:
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Sakari Ailus authored
It doesn't make sense to just copy the information to the PLL flags. Add a new fields for the quirks to contain the PLL flags. Signed-off-by:
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Sakari Ailus authored
The sub-device names should be unique. Should two identical sensors be present in the same media device they would be indistinguishable. The names will change e.g. from "vs6555 pixel array" to "vs6555 1-0010 pixel array". Signed-off-by:
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Sakari Ailus authored
Signed-off-by:
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Sakari Ailus authored
8-bit reads are needed in some cases; however the condition used was wrong. Regular access (register width) was used if: len == SMIAPP_REG_8BIT && !only8 This causes 8-bit read access to be used always. The operator should be || instead: regular access can be used for 8-bit reads OR if allowed otherwise. Signed-off-by:
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Sakari Ailus authored
SMIAPP_REG_ is the common prefix used in the driver for register related definitions. Use it consistently. Signed-off-by:
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Sakari Ailus authored
The quirk registers mechanism which allows register to have a static read access value from the sensor specific quirks, is not used. Remove it. It is to be replaced by a more generic register diversion quirk soon. Signed-off-by:
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Hans Verkuil authored
When compiling this for older kernels using the compatibility build the compiler complains about uninitialized variables: In file included from include/linux/kernel.h:20:0, from include/linux/cache.h:4, from include/linux/time.h:7, from include/linux/input.h:13, from /home/hans/work/build/media_build/v4l/compat.h:9, from <command-line>:0: /home/hans/work/build/media_build/v4l/videobuf2-core.c: In function 'vb2_mmap': include/linux/dynamic_debug.h:60:9: warning: 'plane' may be used uninitialized in this function [-Wmaybe-uninitialized] printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ ^ /home/hans/work/build/media_build/v4l/videobuf2-core.c:2381:23: note: 'plane' was declared here unsigned int buffer, plane; ^ In file included from include/linux/kernel.h:20:0, from include/linux/cache.h:4, from include/linux/time.h:7, from include/linux/input.h:13, from /home/hans/work/build/media_build/v4l/compat.h:9, from <command-line>:0: include/linux/dynamic_debug.h:60:9: warning: 'buffer' may be used uninitialized in this function [-Wmaybe-uninitialized] printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ ^ /home/hans/work/build/media_build/v4l/videobuf2-core.c:2381:15: note: 'buffer' was declared here unsigned int buffer, plane; ^ While these warnings are bogus (the call to __find_plane_by_offset will set buffer and plane), it doesn't hurt to initialize these variables. Signed-off-by: -
Hans Verkuil authored
The stop_streaming op is only called if streaming is in progress, so drop the unnecessary 'if (!vb2_is_streaming(vq))' check. Signed-off-by:
Pawel Osciak <pawel@osciak.com> Acked-by:
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Hans Verkuil authored
The vb2 core ignores any return code from the stop_streaming op. And there really isn't anything it can do anyway in case of an error. So change the return type to void and update any drivers that implement it. The int return gave drivers the idea that this operation could actually fail, but that's really not the case. The pwc amd sdr-msi3101 drivers both had this construction: if (mutex_lock_interruptible(&s->v4l2_lock)) return -ERESTARTSYS; This has been updated to just call mutex_lock(). The stop_streaming op expects this to really stop streaming and I very much doubt this will work reliably if stop_streaming just returns without really stopping the DMA. Signed-off-by: -
Robert Butora authored
Warnings due to __le16 / u16 conversions. Replace offending struct and so stay on cpu domain. Signed-off-by:
Robert Butora <robert.butora.fi@gmail.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Two new devices were added, but the cardlists weren't updated. Signed-off-by: -
Antti Palosaari authored
External LNA between antenna connector and RF tuner is controlled by EM28178 GPIO 0. GPIO value 1 is LNA active and value 0 is LNA disabled. Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Antti Palosaari authored
bit3 was not cleared always leaving driver reporting demod is not fully locked. Do not check bit0 as it seems to be always 0. Signed-off-by:
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Antti Palosaari authored
Silicon Labs Si2157 silicon tuner driver. Signed-off-by:
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Antti Palosaari authored
Silicon Labs Si2168 DVB-T/T2/C demod driver Signed-off-by:
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Antti Palosaari authored
Add copyright and license for each file. Signed-off-by:
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Antti Palosaari authored
Add copyright and license for each file. Signed-off-by:
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Antti Palosaari authored
Add support for DVB-C (annex A version). Signed-off-by:
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Antti Palosaari authored
DVB-C uses lower frequencies than DVB-T. Extend frequency range down to 110 MHz in order to support DVB-C. 110 - 862 MHz range is defined by NorDig Unified 2.2 specification. Signed-off-by:
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Antti Palosaari authored
Add support for DVB-T2. Signed-off-by:
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Antti Palosaari authored
Empia EM28178, Silicon Labs Si2168, Silicon Labs Si2157. Signed-off-by:
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Antti Palosaari authored
Silicon Labs Si2168 DVB-T/T2/C demod driver. That driver version supports only DVB-T. Signed-off-by:
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Antti Palosaari authored
Silicon Labs Si2157 silicon tuner driver. Currently it supports only DVB-T. Signed-off-by:
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- 16 Apr, 2014 2 commits
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Hans Verkuil authored
With the new vb2_thread_start/stop core code it is very easy to implement videobuf2-dvb. This should simplify converting existing videobuf drivers to vb2. Signed-off-by:
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Hans Verkuil authored
In order to implement vb2 DVB support you need to be able to start a kernel thread that queues and dequeues buffers, calling a callback function for every buffer. This patch adds support for that. It's based on drivers/media/v4l2-core/videobuf-dvb.c, but with all the DVB specific stuff stripped out, thus making it much more generic. Signed-off-by:
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