ISP interrupts are enabled/disabled when starting/stopping the IPIPEIF
or resizer. This doesn't permit using the two modules in separate
pipelines. Fix it by enabling/disabling the ISP interrupts at the same
time as the ISS interrupts, in the ISS device get/put operations.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Return an error from the s_stream handlers when stopping the stream
failed instead of just logging the error and ignoring it. While we're
at it, move the logging code from submodules to the driver code.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

List the pixel formats compatible with the active format currently
configured on the connected pad.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The function will be used by a caller that needs the media bus format
instead of the pixel format currently returned. Move the media bus
format to pixel format conversion to the existing caller.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The field stores the format description in a human-readable form.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The Linux kernel recommends lower case for hexadecimal constants.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

When stopping the resizer due to a buffer underrun, disabling RZA only
produces input FIFO overflows, most probably when the next frame is
received. Disable the whole resizer to work around the problem.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Replace the direct readl/writel calls with helper functions.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Replace the direct readl/writel calls with helper functions that take an
ISS pointer and compute the register memory address. Also add bit clear,
set and update helpers.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Automatically switch between ULP and ON states based on ULPM signal from
complex I/O.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Input samples must be left-aligned on the ISIF 16-bit data bus.
Configure the 16-to-16-bit selector to shift data according to the input
format.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The ISIF generates VD0 interrupts even when writes are disabled.
Disabling the ISIF when no buffer is available is thus not be enough, we
need to handle the situation explicitly.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The ternary operator ? : has a low precedence. Use parenthesis where
needed.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Let the compiler decide.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add a pretty print function for ISP IRQs and remove the _INT suffix from
interrupt names to enhance readability.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Use a macro to get the VDINT indexed registers.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add more register definitions at iss_regs.h and improve some register
names.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Pure CodingStyle fixes.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Pure CodingStyle fixes.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Non-split strings help grepping for messages.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

dev_err is preferred over printk(KERN_ERR) when a device pointer is
available.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Stop that, stop that! You're not going to do a song while I'm here.
Signed-off-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

When VPDMA fetches or writes to an image buffer, the line stride must be a
multiple of 16 bytes. If it isn't, VPDMA HW will write/fetch until the next
16 byte boundry. This causes VPE to work incorrectly for source or destination
widths which don't satisfy the above alignment requirement.
In order to prevent this, we now make sure that when we set pix format for the
input and output buffers, the VPE source and destination image line strides are
16 byte aligned. Also, the motion vector buffers for the de-interlacer are
allocated in such a way that it ensures the same alignment.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The data_type value to be programmed in the data descriptors to fetch/write a
UYVY buffer was not mentioned correctly in the older DRA7x documentation. This
caused VPE to fail with UYVY color formats.
Update the data_type value to fix functionality when UYVY format is used.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro
is not preferred.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The SpeedLink Vicious And Devine Laplace webcam is using an EM2765 bridge and
an OV2640 sensor. It has a built-in microphone (USB standard device class)
and provides 3 buttons (snapshot, illumination, mute) and 2 LEDs (capturing/mute
and illumination/flash). It is also equipped with an eeprom.
The device is available in two colors: white (1ae7:9003) and black (1ae7:9004).
For further details see http://linuxtv.org/wiki/index.php/VAD_Laplace.
Please note the following limitations that need to be addressed later:
- resolution limited to 640x480 (sensor supports 1600x1200)
- picture quality needs to be improved
- AV-mute button doesn't work yet
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The SpeedLink VAD Laplace webcam is equipped with an illumination button and
an illumination LED. When the button is pressed, the driver must toggle the
LED state via the corresponding GPO port.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Introduce a LED role and store all LEDs in an array.
Also provide a helper function to retrieve a specific LED.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

So far, the driver only supports a snapshot button which is assigned to
register 0x0c bit 5. This special port has a built-in debouncing mechanism.
For buttons connected to ordinary GPI ports, this patch implements a software
debouncing mechanism.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The current code supports only a single snapshot button assigned to
register 0x0c bit 5. But devices may be equipped with multiple buttons
with different functionalities and they can also be assigned to the
various GPI-ports.
Extend the em28xx-input code to handle multiple buttons assigned to different
GPI-ports / register addresses and bits.
Also make easier to extend the code with further button types.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Some devices are equipped with a capturing status LED that needs to be
switched on/off explicitly via a GPO port.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

vs6624_read() is only called in the conditionally-compiled
vs6624_g_register() function. Make the former conditionally-compiled as
well to silence build warnings.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NScott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Too much noise, also does not cover every possible code paths.
Signed-off-by: NMauro Dreissig <mukadr@gmail.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

As pointed out by sparse:
drivers/staging/media/as102/as102_fw.c:29:6: warning: symbol 'as102_st_fw1' was not declared. Should it be static?
drivers/staging/media/as102/as102_fw.c:30:6: warning: symbol 'as102_st_fw2' was not declared. Should it be static?
drivers/staging/media/as102/as102_fw.c:31:6: warning: symbol 'as102_dt_fw1' was not declared. Should it be static?
drivers/staging/media/as102/as102_fw.c:32:6: warning: symbol 'as102_dt_fw2' was not declared. Should it be static?
drivers/staging/media/as102/as102_usb_drv.c:194:25: warning: symbol 'as102_priv_ops' was not declared. Should it be static?
Also use the const qualifier on the firmware name strings.
Signed-off-by: NMauro Dreissig <mukadr@gmail.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add tracepoints to the QBUF and DQBUF ioctls to enable rudimentary
performance measurements using standard kernel tracers.

[m.chehab@samsung.com: CodingStyle fixes (whitespacing)]
Signed-off-by: NWade Farnsworth <wade_farnsworth@mentor.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

We recently introduced some new error paths but the unlocks are missing.
Fixes: 0065a79a ('[media] dw2102: Don't use dynamic static allocation')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

We recently introduced some new error paths which are missing their
unlocks.
Fixes: 64f7ef8a ('[media] cxusb: Don't use dynamic static allocation')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

It upsets static checkers when we don't check for allocation failure.  I
moved the memset() of "tv" earlier so we don't use uninitialized data on
error.
Fixes: 1d212cf0 ('[media] cx18: struct i2c_client is too big for stack')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NAndy Walls <awalls@md.metrocast.net>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add usb id of Hauppauge WinTV-HVR-930C HD to mceusb RC driver.
This device has no IR transmitter (according to eeprom content decoded
by tveeprom).
Set the rc mapping to Hauppauge, every key of the deliviered remote
control works correctly.

[m.chehab@samsung.com: fix merge conflicts and unmangled whitespace]
Signed-off-by: NMatthias Schwarzott <zzam@gentoo.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

We had set the pci drvdata in cx88_audio_initdev() as a type of
struct snd_card, so cx88_audio_finidev() should used it as the
same type too.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>