- Jun 06, 2017
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Devin Heitmueller authored
For reasons unclear, we intermittently see a case where the tune is successful but the bulk stream fails to deliver any packets. Add a timer to automatically stop/start the data pump if we encounter such a case. Signed-off-by:
Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Devin Heitmueller authored
We need to set the initial modulation on driver setup, or else any calls to GET_FRONTEND prior to the first SET_FRONTEND call will get back garbage. Signed-off-by:
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Devin Heitmueller authored
The xc5000 driver should not be spinning waiting for an analog lock. The ioctl() should be returning immediately and the application is responsible for polling for lock status. This behavior isn't very visible in cases where you tune to a valid channel, since lock is usually achieved much faster than 400ms. However it is highly visible where doing things like changing video standards, which sends tuning request for a frequency that is almost never going to have an actual channel on it. Also fixup the return values to treat zero as success and an actual error code on error (to be consistent with other functions). Note this change has no practical effect at this time as none of the callers inspect the return value. Signed-off-by:
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Devin Heitmueller authored
Only looking at the lock register causes the status to float between locked and not locked when there is no signal. So improve the logic to also examine the state of the FSC PLL, which results in the lock status being consistently reported. Signed-off-by:
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Devin Heitmueller authored
The second highest bit in the register value is an indicator to do a register read, so remove it since now au8522_regread() inserts the bit automatically. Also remove a stray instance where we were actually trying to write to the I2C status register, which was actually a read. Signed-off-by:
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Devin Heitmueller authored
The leading bit in register values is actually an indicator as to whether to perform a read or write, so remove the bit from the register values, since the au8522_writereg() is now responsible for adding this bit automatically. Signed-off-by:
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Devin Heitmueller authored
I got this working a couple of years ago. Remove it from the list of known issues. Signed-off-by:
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Devin Heitmueller authored
The original code was based on my reverse engineering of an I2C trace of the Windows driver. Now that I know what the registers actually do, restructure the code a bit, removing some unneeded register programming and fixing the sequencing of operations. This reduces the time it takes to change inputs from 1300ms down to 600ms (as measured by "time v4l2-ctl -i 0") Note this does not address outstanding issues related to the management of the module clocks and power control for the various blocks, which will be done in a separate patch. Signed-off-by:
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Devin Heitmueller authored
Some stray lines got inserted into the driver when I reverse engineered the I2C traffic (at the time I didn't know what the registers did). It turns up these registers muck with the onboard I2C master, which we don't use since we instead use the I2C gate. Remove the lines which can actually interfere with the operation of the bus. Signed-off-by:
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Devin Heitmueller authored
Since we don't suppoort sliced VBI with the au0828/au8522, there is no need to configure the au8522 VBI slicer, which because of the coefficients requires a large amount of i2c traffic. Remove the relevant code. Note that this has no effect on raw VBI support, which is currently the only supported way to access VBI on this device. Signed-off-by:
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Rene Hickersberger authored
Fixed spelling mistake of "successfully" Signed-off-by:
Rene Hickersberger <renehickersberger@gmx.net> Signed-off-by:
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Benjamin Gaignard authored
Minor fixes in comments Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by:
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Benjamin Gaignard authored
Hardware could support up to 16 logical addresses which is more than needed by CEC specifications. Let use CEC_MAX_LOG_ADDRS instead of limited it on one. stih_cec_adap_log_addr() function was alredy written to support multiple addresses requests. Signed-off-by:
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Gustavo A. R. Silva authored
Remove variable self assignment. Addresses-Coverity-ID: 1408817 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by:
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Johan Hovold authored
Add the missing endianness conversions to a debug call printing the USB device-descriptor idVendor and idProduct fields during probe. Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Hans Verkuil authored
The VIDIOC_G/S_EDID ioctls can return valid data even if an error is returned. Mark those ioctls accordingly. Rather than using an explicit 'if' to check for the ioctl (as was done until now for VIDIOC_QUERY_DV_TIMINGS) just set a new flag in the v4l2_ioctls array. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Petr Cvek authored
In 'commit 295ab497 ("[media] media: platform: pxa_camera: make printk consistent")' a pointer to the device structure in mclk_get_divisor() was changed to pcdev_to_dev(pcdev). The pointer used by pcdev_to_dev() is still uninitialized during the call to mclk_get_divisor() as it happens in v4l2_device_register() at the end of the probe. The dev_warn and dev_dbg caused a line in the log: (NULL device *): Limiting master clock to 26000000 Fix this by using an initialized pointer from the platform_device (as before the old patch). Signed-off-by:
Petr Cvek <petr.cvek@tul.cz> Acked-by:
Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by:
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Petr Cvek authored
The v4l2-compliance complains about nonexistent vidioc_subscribe_event and vidioc_unsubscribe_event calls. Add them to fix the complaints. Signed-off-by:
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Petr Cvek authored
During the transfer from the soc_camera a test in pxa_mbus_image_size() got removed. Without it any PXA_MBUS_LAYOUT_PACKED format causes either the return of a wrong value (PXA_MBUS_PACKING_2X8_PADHI doubles the correct value) or EINVAL (PXA_MBUS_PACKING_NONE and PXA_MBUS_PACKING_EXTEND16). This was observed in an error from the ffmpeg (for some of the YUYV subvariants). This patch re-adds the same test as in soc_camera version. Signed-off-by:
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Petr Cvek authored
This patch adds Bayer 8 GBRG and RGGB support and move GRBG definition close to BGGR (so all Bayer 8 variants are together). No other changes are needed as the driver handles them as RAW data stream. The RGGB variant was tested in a modified OV9640 driver. Signed-off-by:
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Peter Boström authored
Permits distinguishing between two /dev/videoX entries from the same physical UVC device (that naturally share the same iProduct name). This change matches current Windows behavior by prioritizing iFunction over iInterface, but unlike Windows it displays both iProduct and iFunction/iInterface strings when both are available. Signed-off-by:
Peter Boström <pbos@google.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Daniel Roschka authored
Add the probe def quirk for the webcam found in the Apple MacBook Pro 2016, to get it working out of the box. Signed-off-by:
Daniel Roschka <danielroschka@phoenitydawn.de> Signed-off-by:
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Frank Schaefer authored
- avoid duplicate debugging messages in em28xx_read_reg_req_len() - do not describe successful usb transfers in em28xx_read_reg_len() as "failed" - report errors in em28xx_write_regs_req(), too - print the usb error numbers, too Signed-off-by:
Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by:
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Colin Ian King authored
trivial fix to spelling mistake and add in a white space in a CX18_ERR error message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Pan Bian authored
In functions cx25840_initialize(), cx231xx_initialize(), and cx23885_initialize(), the return value of create_singlethread_workqueue() is used without validation. This may result in NULL dereference and cause kernel crash. This patch fixes it. Signed-off-by:
Pan Bian <bianpan2016@163.com> Signed-off-by:
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Pan Bian authored
Function pci_find_ext_capability() may return 0, which is an invalid address. In function cobalt_pcie_status_show(), its return value is used without validation. This patch adds checks to validate the return address. Signed-off-by:
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Pan Bian authored
Function kthread_create() returns an ERR_PTR on error. However, in function s5k83a_start(), its return value is used without validation. This may result in a bad memory access bug. This patch fixes the bug. Signed-off-by:
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Devin Heitmueller authored
The recent changes in 4.9 to mandate USB buffers be heap allocated broke this driver, which was allocating the buffers on the stack. This resulted in the device failing at initialization. Introduce dedicated send/receive buffers as part of the state structure, and add a mutex to protect access to them. Note: we also had to tweak the API to mxl111sf_ctrl_msg to pass the pointer to the state struct rather than the device, since we need it inside the function to access the buffers and the mutex. This patch adjusts the callers to match the API change. Signed-off-by:
Doug Lung <dlung0@gmail.com> Cc: Michael Ira Krufky <mkrufky@linuxtv.org> Cc: <stable@vger.kernel.org> # for v4.5 and up Signed-off-by:
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Songjun Wu authored
Sometimes 'DMA single access' is not enough to transfer a frame of image, '8-beat burst access' is set as the default DMA memory burst size. Signed-off-by:
Songjun Wu <songjun.wu@microchip.com> Acked-by:
Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by:
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Devin Heitmueller authored
Setting initial standard at the top of cx8800_initdev would cause the first call to cx88_set_tvnorm() to return without programming any registers (leaving the driver saying it's set to NTSC but the hardware isn't programmed). Even worse, any subsequent attempt to explicitly set it to NTSC-M will return success but actually fail to program the underlying registers unless first changing the standard to something other than NTSC-M. Set the initial standard later in the process, and make sure the field is zero at the beginning to ensure that the call always goes through. This regression was introduced in the following commit: commit ccd6f1d4 ("[media] cx88: move width, height and field to core struct") Author: Hans Verkuil <hans.verkuil@cisco.com> [media] cx88: move width, height and field to core struct Signed-off-by:
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Hugues Fruchet authored
This V4L2 subdev driver enables Digital Camera Memory Interface (DCMI) of STMicroelectronics STM32 SoC series. Signed-off-by:
Yannick Fertre <yannick.fertre@st.com> Signed-off-by:
Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by:
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Hugues Fruchet authored
This adds documentation of device tree bindings for the STM32 DCMI (Digital Camera Memory Interface). Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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- May 19, 2017
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Mauro Carvalho Chehab authored
Without annotations, gcc 7.1 will complain. Signed-off-by: -
Mauro Carvalho Chehab authored
On this driver, it can fall through a switch. I tried to annotate it, in order to shut up a gcc warning, but that didn't work, as the logic there is somewhat complex. So, instead, let's just repeat the code. gcc should likely optimize it anyway, and this makes the code better readable, IMHO. Signed-off-by: -
Mauro Carvalho Chehab authored
Clearly, hsync and vsinc bool vars are part of the return logic on the second case of the switch. Annotate that, in order to shut up gcc warnings. Signed-off-by: -
Mauro Carvalho Chehab authored
There are two cases here that it does a switch fall through. Annotate it, in order to shut up gcc warnings. Signed-off-by: -
Mauro Carvalho Chehab authored
On two switches, this driver have unannotated switch fall through. in the first case, it falls through a return. On the second one, it prints undesired log messages on fall through. Solve that by copying the commands that it should be running. Gcc will very likely optimize it anyway, so this sholdn't be causing any harm, and shuts up gcc warnings. Signed-off-by: -
Mauro Carvalho Chehab authored
The atomisp currently produce hundreds of warnings when W=1. It is a known fact that this driver is currently in bad shape, and there are lot of things to be done here. We don't want to be bothered by those "minor" stuff for now, while the driver doesn't receive a major cleanup. So, disable those warnings. Signed-off-by: -
Mauro Carvalho Chehab authored
Gcc 7.1 complains that: drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c: In function 'mtk_vdec_pic_info_update': drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c:284:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] int ret; ^~~ Indeed, if debug is disabled, "ret" is never used. The best fix for it seems to make the fuction to return an error code. Signed-off-by: -
Mauro Carvalho Chehab authored
Gcc 7.1 complains about: drivers/media/platform/s5p-jpeg/jpeg-core.c: In function 's5p_jpeg_parse_hdr.isra.9': drivers/media/platform/s5p-jpeg/jpeg-core.c:1207:12: warning: 'width' may be used uninitialized in this function [-Wmaybe-uninitialized] result->w = width; ~~~~~~~~~~^~~~~~~ drivers/media/platform/s5p-jpeg/jpeg-core.c:1208:12: warning: 'height' may be used uninitialized in this function [-Wmaybe-uninitialized] result->h = height; ~~~~~~~~~~^~~~~~~~ Indeed the code would allow it to return a random value (although it shouldn't happen, in practice). So, explicitly set both to zero, just in case. Acked-by:
Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by:
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