[media] s5k5baf: Convert use of __constant_cpu_to_be16 to cpu_to_be16
In little endian cases, macro cpu_to_be16 unfolds to __swab16 which
provides special case for constants. In big endian cases,
__constant_cpu_to_be16 and cpu_to_be16 expand directly to the
same expression. So, replace __constant_cpu_to_be16 with
cpu_to_be16 with the goal of getting rid of the definition of
__constant_cpu_to_be16 completely.
The semantic patch that performs this transformation is as follows:
David Howells [Wed, 3 Jun 2015 11:35:08 +0000 (08:35 -0300)]
[media] ts2020: Allow stats polling to be suppressed
Statistics polling can not be done by lmedm04 driver's implementation of
M88RS2000/TS2020 because I2C messages stop the device's demuxer, so allow
polling for statistics to be suppressed in the ts2020 driver by setting
dont_poll in the ts2020_config struct.
David Howells [Tue, 26 May 2015 15:04:07 +0000 (12:04 -0300)]
[media] ts2020: Provide DVBv5 API signal strength
Provide a DVBv5 API signal strength. This is in units of 0.001 dBm rather
than a percentage.
>From Antti Palosaari's testing with a signal generator, it appears that the
gain calculated according to Montage's specification if negated is a
reasonable representation of the signal strength of the generator.
To this end:
(1) Polled statistic gathering needed to be implemented in the TS2020 driver.
This is done in the ts2020_stat_work() function.
(2) The calculated gain is placed as the signal strength in the
dtv_property_cache associated with the front end with the scale set to
FE_SCALE_DECIBEL.
(3) The DVBv3 format signal strength then needed to be calculated from the
signal strength stored in the dtv_property_cache rather than accessing
the value when ts2020_read_signal_strength() is called.
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
David Howells [Tue, 26 May 2015 15:04:00 +0000 (12:04 -0300)]
[media] TS2020: Calculate tuner gain correctly
The TS2020 and TS2022 tuners take an input from the demodulator indicating the
AGC setting on that component that is then used to influence the tuner's own
gain. This should be taken into account when calculating the gain and signal
strength.
Further, the existing TS2020 driver miscalculates the signal strength as the
result of its calculations can exceed the storage capacity of the 16-bit word
used to return it to userspace.
To this end:
(1) Add a callback function (->get_agc_pwm()) in the ts2020_config struct that
the tuner can call to get the AGC PWM value from the demodulator.
(2) Modify the TS2020 driver to calculate the gain according to Montage's
specification with the adjustment that we produce a negative value and
scale it to 0.001dB units (which is what the DVBv5 API will require):
(a) Callback to the demodulator to retrieve the AGC PWM value and then
turn that into Vagc for incorporation in the calculations. If the
callback is unset, assume a Vagc of 0.
(b) Calculate the tuner gain from a combination of Vagc and the tuner's RF
gain and baseband gain settings.
(3) Turn this into a percentage signal strength as per Montage's
specification for return to userspace with the DVBv3 API.
(4) Provide a function in the M88DS3103 demodulator driver that can be used to
get the AGC PWM value on behalf of the tuner.
(5) The ts2020_config.get_agc_pwm function should be set by the code that
stitches together the drivers for each card.
For the DVBSky cards that use the M88DS3103 with the TS2020 or the TS2022,
set the get_agc_pwm function to point to m88ds3103_get_agc_pwm.
I have tested this with a DVBSky S952 card which has an M88DS3103 and a TS2022.
Thanks to Montage for providing access to information about the workings of
these parts.
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Antti Palosaari [Fri, 17 Apr 2015 01:43:52 +0000 (22:43 -0300)]
[media] m88ds3103: use regmap for I2C register access
Use regmap for I2C register access.
Remove own I2C repeated mutex as it should not be needed. I2C adapter
lock is already taken when I2C mux adapter is called, no need for
double locking.
Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
David Howells [Thu, 2 Apr 2015 11:03:11 +0000 (08:03 -0300)]
[media] ts2020: Add a comment about lifetime of on-stack pdata in ts2020_attach()
ts2020_attach() allocates a variable pdata on the stack and then passes a
pointer to it to i2c_new_device() which stashes the pointer in persistent
structures.
Add a comment to the effect that this isn't actually an error because the
contents of the variable are only used in ts2020_probe() and this is only
called ts2020_attach()'s stack frame exists.
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Antti Palosaari [Thu, 26 Mar 2015 23:20:42 +0000 (20:20 -0300)]
[media] ts2020: register I2C driver from legacy media attach
Register driver using I2C bindings internally when legacy media
attach is used. That is done by registering driver using I2C binding
from legacy attach. That way we can get valid I2C client, which is
needed for proper dev_() logging and regmap for example even legacy
binding is used.
Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Antti Palosaari [Thu, 26 Mar 2015 13:04:09 +0000 (10:04 -0300)]
[media] ts2020: re-implement PLL calculations
Used frequency synthesizer is simple Integer-N PLL, with configurable
reference divider, output divider and of course N itself. Old
calculations were working fine, but not so easy to understand.
Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Hans Verkuil [Wed, 10 Jun 2015 05:45:45 +0000 (02:45 -0300)]
[media] cobalt: fix 64-bit division
There are still some 64-bit division problems in the cobalt code.
Replace it by div_u64.
[mchehab@osg.samsung.com: folded with an additional diff sent by
Hans via a priv e-mail] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Tina Ruchandani [Sun, 31 May 2015 07:17:06 +0000 (04:17 -0300)]
[media] dvb-frontend: Replace timeval with ktime_t
struct timeval uses a 32-bit seconds representation which will
overflow in the year 2038 and beyond. This patch replaces
the usage of struct timeval with ktime_t which is a 64-bit
timestamp and is year 2038 safe.
This patch is part of a larger attempt to remove all instances
of 32-bit timekeeping variables (timeval, timespec, time_t)
which are not year 2038 safe, from the kernel.
Jemma Denson [Sat, 30 May 2015 18:10:06 +0000 (15:10 -0300)]
[media] b2c2: Add option to skip the first 6 pid filters
The flexcop bridge chip has two banks of hardware pid filters -
an initial 6, and on some chip revisions an additional bank of 32.
A bug is present on the initial 6 - when changing transponders
one of two PAT packets from the old transponder would be included
in the initial packets from the new transponder. This usually
transpired with userspace programs complaining about services
missing, because they are seeing a PAT that they would not be
expecting. Running in full TS mode does not exhibit this problem,
neither does using just the additional 32.
This patch adds in an option to not use the inital 6 and solely use
just the additional 32, and enables this option for the SkystarS2
card. Other cards can be added as required if they also have
this bug.
[media] ddbridge: Do not free_irq() if request_irq() failed
My static checker detected that free_irq() is called even after
request_irq() failed in ddb_probe(). In this case, the kernel may try to
free dev->pdev->irq although the IRQ is not assigned. This event rarely
occurs, but always introduces a warning if it happens.
"goto fail1" always results in disabling enabled MSI and releasing a
requested IRQ. It seems like the former handling is necessary. So I added
a conditional branch before the free_irq() (stat == 0 means request_irq()
succeeds).
[media] Staging: media: lirc: Replace timeval with ktime_t
'struct timeval last_tv' is used to get the time of last signal change
and 'struct timeval last_intr_tv' is used to get the time of last UART
interrupt.
32-bit systems using 'struct timeval' will break in the year 2038, so we
have to replace that code with more appropriate types.
Here struct timeval is replaced with ktime_t.
Jemma Denson [Thu, 21 May 2015 09:29:23 +0000 (06:29 -0300)]
[media] b2c2: Mismatch in config ifdefs for SkystarS2
Compilation warning issued by kbuild test robot:
>> drivers/media/common/b2c2/flexcop-fe-tuner.c:31:12: warning: 'flexcop_fe_request_firmware' defined but not used [-Wunused-function]
static int flexcop_fe_request_firmware(struct dvb_frontend *fe,
This patch fixes a mismatch in Kconfig define checks. One had a
check for just CX24120, the other is checking for both CX24120
and ISL6421.
The coda tracing code causes lots of warnings like
In file included from /git/arm-soc/include/trace/define_trace.h:90:0,
from /git/arm-soc/drivers/media/platform/coda/trace.h:203,
from /git/arm-soc/drivers/media/platform/coda/coda-bit.c:34:
/git/arm-soc/include/trace/ftrace.h:28:0: warning: "TRACE_SYSTEM_STRING" redefined
#define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
^
In file included from /git/arm-soc/include/trace/define_trace.h:83:0,
from /git/arm-soc/drivers/media/platform/coda/trace.h:203,
from /git/arm-soc/drivers/media/platform/coda/coda-bit.c:34:
/git/arm-soc/drivers/media/platform/coda/./trace.h:12:0: note: this is the location of the previous definition
#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM)
>From what I can tell, this is just the result of a bogus TRACE_SYSTEM_STRING
definition, and removing that one makes the warnings go away.
The subdev API is optional. No driver should depend on it.
Avoid compilation breakages if subdev API is not selected:
drivers/media/i2c/ov2659.c: In function ‘ov2659_get_fmt’:
drivers/media/i2c/ov2659.c:1054:3: error: implicit declaration of function ‘v4l2_subdev_get_try_format’ [-Werror=implicit-function-declaration]
mf = v4l2_subdev_get_try_format(sd, cfg, 0);
^
drivers/media/i2c/ov2659.c:1054:6: warning: assignment makes pointer from integer without a cast
mf = v4l2_subdev_get_try_format(sd, cfg, 0);
^
drivers/media/i2c/ov2659.c: In function ‘ov2659_set_fmt’:
drivers/media/i2c/ov2659.c:1129:6: warning: assignment makes pointer from integer without a cast
mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
^
drivers/media/i2c/ov2659.c: In function ‘ov2659_open’:
drivers/media/i2c/ov2659.c:1264:38: error: ‘struct v4l2_subdev_fh’ has no member named ‘pad’
v4l2_subdev_get_try_format(sd, fh->pad, 0);
^
Fabien Dessenne [Tue, 12 May 2015 16:02:10 +0000 (13:02 -0300)]
[media] bdisp: 2D blitter driver using v4l2 mem2mem framework
This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.
It uses the v4l2 mem2mem framework.
The following features are supported and tested:
- Color format conversion (RGB32, RGB24, RGB16, NV12, YUV420P)
- Copy
- Scale
- Flip
- Deinterlace
- Wide (4K) picture support
- Crop
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: added missing slab.h include to bdisp-v4l2.c]
There are several anonymous enums here, used via a typedef.
Well, we don't like typedefs on Kernel, so let's de-anonimize
those enums. Then, latter, we may be able to get rid of the
typedefs, at least from Kernelspace.
The DVB API was originally defined using typedefs. This is against
Kernel CodingStyle, and there's no good usage here. While we can't
remove its usage on userspace, we can avoid its usage in Kernelspace.
So, let's do it.
This patch was generated by this shell script:
for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done
While here, make CodingStyle fixes on the affected lines.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
[media] DocBook: properly document the delivery systems
Use a table for the delivery systems. The table is organized
by the type (cable, satellite, terrestrial) and shows what
standards are not fully implemented.
[media] DocBook: add placeholders for ATSC M/H properties
The ATSC M/H specific properties are not properly documented.
This became crearer when converting the existing data into
tables and adding cross references.
For now, just add placeholders, as a further investigation
about the meaning of each parameter is required.
Cc: Michael Ira Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
enum fe_caps is documented at FE_GET_INFO ioctl. Add xrefs
for each entry there. This makes the hyperlinks at frontend.h
to go directly to the right documentation.
Hans Verkuil [Sat, 6 Jun 2015 08:02:32 +0000 (05:02 -0300)]
[media] cx231xx: fix compiler warning
Fix this compiler warning by allocating a structure to read the eeprom instead
of doing it on the stack and worse: the eeprom array is static, so that can
cause problems if there are multiple cx231xx instances.
cx231xx-cards.c: In function 'cx231xx_card_setup':
cx231xx-cards.c:1110:1: warning: the frame size of 2064 bytes is larger than 2048 bytes [-Wframe-larger-than=]
}
^
I did consider removing the code altogether since the result is actually
not used at the moment, but I decided against it since it is used in other
drivers and someone might want to start using it in this driver as well. And
then it is useful that the code is already there.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Prashant Laddha [Fri, 22 May 2015 05:27:34 +0000 (02:27 -0300)]
[media] v4l2-dv-timings: add interlace support in detect cvt/gtf
Extend detect_cvt/gtf API to indicate the format type (interlaced
or progressive). In case of interlaced, the vertical front and back
porch and vsync values for both (odd,even) fields are considered to
derive image height. Populated vsync, vertical front, back porch
values in bt timing structure for even and odd fields and updated
the flags appropriately.
Also modified the functions calling the detect_cvt/gtf(). As of now
these functions are calling detect_cvt/gtf() with interlaced flag
set to false.
Hans Verkuil [Fri, 5 Jun 2015 08:30:02 +0000 (05:30 -0300)]
[media] v4l2-dv-timings: support interlaced in v4l2_print_dv_timings
The v4l2_print_dv_timings() didn't log the interlaced format correctly. The timings
for the bottom field weren't logged and the fields per second value was half of what
it should have been.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Prashant Laddha [Fri, 5 Jun 2015 08:13:31 +0000 (05:13 -0300)]
[media] v4l2-dv-timing: avoid rounding twice in gtf hblank calc
Currently, in gtf hblank calculations, the rounding is used twice,
one at intermediate division and one at final state where hblank
is rounded to nearest multiple of twice cell granularity. This
error got introduced in 'commit d7ed5a3ddaec ("[media]
v4l2-dv-timings: fix rounding in hblank and hsync calculation"),
where it missed combining the rounding step. Correcting the same
in this patch.
Hans Verkuil [Sun, 7 Jun 2015 10:32:32 +0000 (07:32 -0300)]
[media] adv7511: log the currently set infoframes
The adv7511 sets up InfoFrames that are used when transmitting video.
Log the contents of those InfoFrames so it is possible to see exactly what
the transmitter is sending.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
According with the docs at docbook.org, no backward compatible
changes were done between 4.2 and 4.5 schemas. Some fixes were
added, together with new features. So, let's use the latest
4.x schema.
Hans Verkuil [Fri, 5 Jun 2015 14:28:51 +0000 (11:28 -0300)]
[media] v4l2-ioctl: log buffer type 0 correctly
If userspace passed the invalid buffer type 0 to the kernel, then the
kernel log would show 'type=(null)' since there was no string defined
for type 0. Fix this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Fabio Estevam [Mon, 1 Jun 2015 17:14:07 +0000 (14:14 -0300)]
[media] radio-si470x-i2c: Pass the IRQF_ONESHOT flag
Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Hans Verkuil [Mon, 1 Jun 2015 10:15:53 +0000 (07:15 -0300)]
[media] vivid: move video loopback control to the capture device
This has been on my TODO list for some time now: the control that enables the video
loopback was part of the controls of the video output device instead of the video
capture device. In practice this was quite annoying since you expect it at the capture
side since that's where you want to make the decision whether to use the TPG or looped
video.
This patch moves the control from the output to the capture side.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Juergen Gier [Thu, 14 May 2015 11:55:04 +0000 (08:55 -0300)]
[media] saa7134: switch tuner FMD1216ME_MK3 to analog
The tuner FMD1216ME_MK3 suffers the same problem as FMD1216MEX_MK3,
as described in saa7134-cards.c (disabled IF, enabled DVB-T). The
card does work under MS Windows, after soft reboot into Linux it
continues to work, only then tda9887 is loaded as well.
I copied the relevant code from the BEHOLD_H6 section to MD7134.
The CTX946 TV card doesn't detect a signal after cold boot, seems
Signed-off-by: Juergen Gier <juergen.gier@gmx.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
[media] v4l: of: Correct pclk-sample for BT656 bus
Current v4l2_of_parse_parallel_bus function attempts to parse the
DT properties for the parallel bus as well as BT656 bus.
If the pclk-sample property is defined for the BT656 bus, it is still
marked as a parallel bus.
Fix this by parsing the pclk after the bus_type is selected.
Only when hsync or vsync properties are specified, the bus_type should
be set to V4L2_MBUS_PARALLEL.
projects / mirror_ubuntu-kernels.git / log