The xc3028 version does i2c splitting in a different manner than xc4000 and
xc5000, so reuse the xc5000 version of the routine (the key here being that
xc4000 expects the first *two* bytes to be the same for splitting transactions.
Doing it the xc3028 way was resulting in i2c errors partially through the
firmware load. With this change, it would appear that the entire base firmware
is being loaded successfully (product id now properly shows 0x0FA0).
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Switch over to using the firmware management routines from the tuner-xc2028,
since that has support for scodes, etc.
This code still requires signficant cleanup, and at this point the base
firmware does not load properly (i2c write errors about 300 bytes in).
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
We need to set the dev.parent member on the dib7000p on its i2c master, or
else calls to request_firmware() will hit an oops in 2.6.31.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add a sleep since in some cases the dib7000p wasn't online when being probed.
The optimal timing has not yet been determined.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use the correct i2c bus to communicate with the tuner, and properly setup the
reset GPIO and i2c address.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Provide a frontend setup routine for the PCTV 340e which takes into account
the specific GPIO setup of the board.
Note that this patch does *not* take into account the xc4000 reset pin, which
is attached to the dib7000.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add the board profile for the PCTV 340eSE, since that's what I have here
for development.
[mchehab@redhat.com: rebased on the top of the current tree]
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is initial code written by Davide Ferri for the PCTV 340e, including
a new xc4000 driver. I am checking in all the code unmodified, and making
no assertions about its quality (other than confirming it compiles).
[mchehab@redhat.com: rebased on the top of the current tree]
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Davide Ferri <davidef1986@gmail.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The implementation of the gain calculation for this sensor is incorrect.
It is only working for the first 127 values.
The reason is, that the gain cannot be set directly by writing a value
into the gain registers of the sensor. The gain register work this way
(see datasheet page 24): bits 0 to 6 are called "initial gain". These
are linear. But bits 7 and 8 ("analog multiplicative factors") and bits
9 and 10 ("digital multiplicative factors") work completely different:
Each of these bits increase the gain by the factor 2. So if the bits
7-10 are 0011, 0110, 1100 or 0101 for example, the gain from bits 0-6 is
multiplied by 4. The order of the bits 7-10 is not important for the
resulting gain. (But there are some recommended values for low noise)
The current driver doesn't do this correctly: If the current gain is 000
0111 1111 (127) and the gain is increased by 1, you would expect the
image to become brighter. But the image is completly dark, because the
new gain is 000 1000 0000 (128). This means: Initial gain of 0,
multiplied by 2. The result is 0.
This patch adds a new function which does the gain calculation and also
fixes the same bug for red_balance and blue_balance. Additionally, the
driver follows the recommendation from the datasheet, which says, that
the gain should always be above 0x0020.
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Johannes Obermaier <johannes.obermaier@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There are problems when you use this camera/sensor in a very bright room
or outside. The image is completely white, because it is overexposed.
The driver uses a default value which is not suitable for all
environments.
This patch makes it possible to adjust the exposure time by youself. I
found out by logging the i2c-data, that the windows driver for this
sensor is doing this, too. I tested the camera on a sunny day and after
adjusting the exposure time, I was able to see a very good image.
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Johannes Obermaier <johannes.obermaier@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
According to the datasheet (page 8), the first optical clear
pixel-column is not at position 14. The correct/recommended value is 20.
Without this patch there is a dark line on the left side of the image.
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Johannes Obermaier <johannes.obermaier@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The conversion of winbond-cir to use rc-core seems to have missed a
a few bits and pieces which were in my local tree. Kudos to
Juan Jesús García de Soria Lucena <skandalfo@gmail.com> for noticing.
[mchehab@redhat.com: fix two UTF-8 violations]
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In the original code, if the allocation failed we dereference "rr3"
when it was NULL.
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If change_protocol() fails and we goto out_raw, then it calls unlock
twice. I noticed that the other time we called change_protocol() we
held the &dev->lock, so I changed it to hold it here too.
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Otherwise they clutter the dmesg buffer even on a production kernel.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The function "rc5_scan" in "dvb_usb.h" is returning invalid value.
The value should be returned "u16" but is returning "u8".
See example below in "drivers/media/dvb/dvb-usb/opera1.c":
send_key = (send_key & 0xffff) | 0x0100;
for (i = 0; i < ARRAY_SIZE(rc_map_opera1_table); i++) {
if (rc5_scan(&rc_map_opera1_table[i]) == (send_key & 0xffff)) {
*state = REMOTE_KEY_PRESSED;
*event = rc_map_opera1_table[i].keycode;
opst->last_key_pressed =
rc_map_opera1_table[i].keycode;
break;
}
opst->last_key_pressed = 0;
}
Signed-off-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert radio-sf16fmr2 to use generic TEA575x implementation. Most of the
driver code goes away as SF16-FMR2 is basically just a TEA5757 tuner
connected to ISA bus.
The card can optionally be equipped with PT2254A volume control (equivalent
of TC9154AP) - the volume setting is completely reworked (with balance control
added) and tested.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The info and err macros are already defined by the USB stack. Rename
these macros to avoid macro redefinition warnings.
Signed-off-by: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The dbg, warn and info macros are already defined by the USB stack.
Rename these macros to avoid macro redefinition warnings.
Refactor lineshift in printouts.
Signed-off-by: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
radio->int_in_urb is not deallocated on error paths in si470x_usb_driver_probe().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
On function videobuf_pages_to_sg the statement sg_set_page(&sglist[0],
pages[0], PAGE_SIZE - offset, offset) will fail if size is less than
PAGE_SIZE.
Signed-off-by: Newson Edouard <newsondev@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
list_first_entry() always returns non-null here. I think the intent was
to test whether there were any entries in the used list.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
All boards use EM28xxx_BOARD, to identify that the macro
refers to a card entry. So:
EM2874_LEADERSHIP_ISDBT -> EM2874_BOARD_LEADERSHIP_ISDBT
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For some reason it repeats rather slowly, around 800ms intervals,
two RC5 remotes tested.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Basically it is just same device as Anysee E7 S2 but made for
internal PCI(e) slot and motherboard USB connector.
Cc: info@anysee.com
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Basically it is just same device as Anysee E7 TC but made for
internal PCI(e) slot and motherboard USB connector.
Cc: info@anysee.com
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This sensor was found in a webcam 8020:ef04 (SVC - SVU2-1.3MV PCCam).
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
While compiling it with Fedora 15, I noticed this issue:
inlined from ‘si4713_write_econtrol_string’ at drivers/media/radio/si4713-i2c.c:1065:24:
arch/x86/include/asm/uaccess_32.h:211:26: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Reviewed-by: Eugene Teo <eugeneteo@kernel.sg>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As Simon reported, digital TV broke with mt20xx tuner due to
commit ad020dc2fe.
The mt20xx tuner passes V4L2_TUNER_DIGITAL_TV to tuner core. However, the
check_mode code now doesn't handle it well. Change the logic there to
avoid the breakage, and fix a test for analog-only at g_tuner.
Reported-by: Simon Arlott <simon@fire.lp0.eu>
Tested-by: Simon Arlott <simon@fire.lp0.eu>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Attached is a patch which addresses a race condition in the DVB core
related to closing/reopening the DVB frontend device in quick
succession. This is the reason that devices such as the HVR-1300,
HVR-3000, and HVR-4000 have been failing to scan properly under MythTV
and w_scan.
The gory details of the race are described in the patch.
Devin
There is a race condition exhibited when channel scanners such as w_scan and
MythTV quickly close and then reopen the frontend device node.
Under normal conditions, the behavior is as follows:
1. Application closes the device node
2. DVB frontend ioctl calls dvb_frontend_release which sets
fepriv->release_jiffies
3. DVB frontend thread *eventually* calls dvb_frontend_is_exiting() which
compares fepriv->release_jiffies, and shuts down the thread if timeout has
expired
4. Thread goes away
5. Application opens frontend device
6. DVB frontend ioctl() calls ts_bus_ctrl(1)
7. DVB frontend ioctl() creates new frontend thread, which calls
dvb_frontend_init(), which has demod driver init() routine setup initial
register state for demod chip.
8. Tuning request is issued.
The race occurs when the application in step 5 performs the new open() call
before the frontend thread is shutdown. In this case the ts_bus_ctrl() call
is made, which strobes the RESET pin on the demodulator, but the
dvb_frontend_init() function never gets called because the frontend thread
hasn't gone away yet. As a result, the initial register config for the demod
is *never* setup, causing subsequent tuning requests to fail.
If there is time between the close and open (enough for the dvb frontend
thread to be torn down), then in that case the new frontend thread is created
and thus the dvb_frontend_init() function does get called.
The fix is to set the flag which forces reinitialization if we did in fact
call ts_bus_ctrl().
This problem has been seen on the HVR-1300, HVR-3000, and HVR-4000, and is
likely occuring on other designs as well where ts_bus_ctrl() actually strobes
the reset pin on the demodulator.
Note that this patch should supercede any patches submitted for the
1300/3000/4000 which remove the code that removes GPIO code in
cx8802_dvb_advise_acquire(), which have been circulating by users for some
time now...
Canonical tracking this issue in Launchpad 439163:
Thanks to Jon Sayers from Hauppauge and Florent Audebert from Anevia S.A. for
providing hardware to test/debug with.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Jon Sayers <j.sayers@hauppauge.co.uk>
Cc: Florent Audebert <florent.audebert@anevia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When CONFIG_SND is not enabled, radio-sf16fmr2 build fails with:
so make this driver depend on SND.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: linux-media@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
sound/isa/es18xx.c: In function ‘snd_es18xx_playback1_prepare’:
sound/isa/es18xx.c:501:9: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/es18xx.c: In function ‘snd_es18xx_playback_pointer’:
sound/isa/es18xx.c:818:3: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [sound/isa/es18xx.o] Error 1
sound/isa/sscape.c: In function ‘upload_dma_data’:
sound/isa/sscape.c:481:3: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [sound/isa/sscape.o] Error 1
sound/isa/ad1816a/ad1816a_lib.c: In function ‘snd_ad1816a_playback_prepare’:
sound/isa/ad1816a/ad1816a_lib.c:244:2: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/ad1816a/ad1816a_lib.c: In function ‘snd_ad1816a_playback_pointer’:
sound/isa/ad1816a/ad1816a_lib.c:302:2: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
sound/isa/ad1816a/ad1816a_lib.c: In function ‘snd_ad1816a_free’:
sound/isa/ad1816a/ad1816a_lib.c:544:3: error: implicit declaration of function ‘snd_dma_disable’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/ad1816a/ad1816a_lib.o] Error 1
make[3]: Target `__build' not remade because of errors.
make[2]: *** [sound/isa/ad1816a] Error 2
sound/isa/es1688/es1688_lib.c: In function ‘snd_es1688_playback_prepare’:
sound/isa/es1688/es1688_lib.c:417:2: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/es1688/es1688_lib.c: In function ‘snd_es1688_playback_pointer’:
sound/isa/es1688/es1688_lib.c:509:2: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/es1688/es1688_lib.o] Error 1
make[3]: Target `__build' not remade because of errors.
make[2]: *** [sound/isa/es1688] Error 2
sound/isa/gus/gus_dma.c: In function ‘snd_gf1_dma_program’:
sound/isa/gus/gus_dma.c:79:2: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/gus/gus_dma.c: In function ‘snd_gf1_dma_done’:
sound/isa/gus/gus_dma.c:177:3: error: implicit declaration of function ‘snd_dma_disable’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/gus/gus_dma.o] Error 1
sound/isa/gus/gus_pcm.c: In function ‘snd_gf1_pcm_capture_prepare’:
sound/isa/gus/gus_pcm.c:591:2: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/gus/gus_pcm.c: In function ‘snd_gf1_pcm_capture_pointer’:
sound/isa/gus/gus_pcm.c:619:2: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/gus/gus_pcm.o] Error 1
make[3]: Target `__build' not remade because of errors.
make[2]: *** [sound/isa/gus] Error 2
sound/isa/sb/sb16_csp.c: In function ‘snd_sb_csp_ioctl’:
sound/isa/sb/sb16_csp.c:228:227: error: case label does not reduce to an integer constant
make[3]: *** [sound/isa/sb/sb16_csp.o] Error 1
sound/isa/sb/sb16_main.c: In function ‘snd_sb16_playback_prepare’:
sound/isa/sb/sb16_main.c:276:2: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/sb/sb16_main.c: In function ‘snd_sb16_playback_pointer’:
sound/isa/sb/sb16_main.c:456:2: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/sb/sb16_main.o] Error 1
sound/isa/sb/sb8_main.c: In function ‘snd_sb8_playback_prepare’:
sound/isa/sb/sb8_main.c:172:3: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/sb/sb8_main.c: In function ‘snd_sb8_playback_pointer’:
sound/isa/sb/sb8_main.c:425:2: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/sb/sb8_main.o] Error 1
make[3]: Target `__build' not remade because of errors.
make[2]: *** [sound/isa/sb] Error 2
sound/isa/wss/wss_lib.c: In function ‘snd_wss_playback_prepare’:
sound/isa/wss/wss_lib.c:1025:2: error: implicit declaration of function ‘snd_dma_program’ [-Werror=implicit-function-declaration]
sound/isa/wss/wss_lib.c: In function ‘snd_wss_playback_pointer’:
sound/isa/wss/wss_lib.c:1160:2: error: implicit declaration of function ‘snd_dma_pointer’ [-Werror=implicit-function-declaration]
sound/isa/wss/wss_lib.c: In function ‘snd_wss_free’:
sound/isa/wss/wss_lib.c:1695:3: error: implicit declaration of function ‘snd_dma_disable’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [sound/isa/wss/wss_lib.o] Error 1
warning: (RADIO_MIROPCM20) selects SND_ISA which has unmet direct dependencies (SOUND && !M68K && SND && ISA && ISA_DMA_API)
A build with ISA && ISA_DMA && !ISA_DMA_API results in:
CC sound/isa/es18xx.o
CC sound/isa/sscape.o
CC sound/isa/ad1816a/ad1816a_lib.o
CC sound/isa/es1688/es1688_lib.o
CC sound/isa/gus/gus_dma.o
CC sound/isa/gus/gus_pcm.o
CC sound/isa/sb/sb16_csp.o
CC sound/isa/sb/sb16_main.o
CC sound/isa/sb/sb8_main.o
CC sound/isa/wss/wss_lib.o
The root cause for this is hidden in this Kconfig warning:
Adding a dependency on ISA_DMA_API to RADIO_MIROPCM20 fixes these issues.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The nuvoton-cir inherited an insanely low idle timeout value from the
mceusb driver. We're fixing mceusb, should fix this driver too.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This matches the typical timeout advertised by hardware, once we're
actually interpreting it correctly.
Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Unit missmatch in mceusb_handle_command. It should be converting to us,
not 1/10th of ms.
mceusb_dev_printdata 100us/ms -> 1000us/ms
Alter format of fix slightly and update comment to match proper reality.
Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This reverts commit e38030f3ff.
MSI flat-out doesn't work right on cx2388x devices yet. There are now
multiple reports of cards that hard-lock systems when MSI is enabled,
including my own HVR-1250 when trying to use its built-in IR receiver.
Disable MSI and it works just fine. Similar for another user's HVR-1270.
Issues have also been reported with the HVR-1850 when MSI is enabled,
and the 1850 behavior sounds similar to an as-yet-undiagnosed issue I've
seen with an 1800.
CC: stable@kernel.org
CC: Steven Toth <stoth@kernellabs.com>
CC: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
[media] msp3400: fill in v4l2_tuner based on vt->type field
[media] tuner-core.c: don't change type field in g_tuner or g_frequency
[media] cx18/ivtv: fix g_tuner support
[media] tuner-core: power up tuner when called with s_power(1)
[media] v4l2-ioctl.c: check for valid tuner type in S_HW_FREQ_SEEK
[media] tuner-core: simplify the standard fixup
[media] tuner-core/v4l2-subdev: document that the type field has to be filled in
[media] v4l2-subdev.h: remove unused s_mode tuner op
[media] feature-removal-schedule: change in how radio device nodes are handled
[media] bttv: fix s_tuner for radio
[media] pvrusb2: fix g/s_tuner support
[media] v4l2-ioctl.c: prefill tuner type for g_frequency and g/s_tuner
[media] tuner-core: fix tuner_resume: use t->mode instead of t->type
[media] tuner-core: fix s_std and s_tuner
The vt->type field determines how the msp3400 should fill in the
tuner data, not whether the msp3400 is in radio mode or not.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The tuner core should not silently change the type field in g_tuner and
g_frequency. If the tuner is in a different mode than the one that was
requested, then just fill in what you can and don't attempt to read afc,
signal or rxsubchans values.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The driver shouldn't override vt->type, and the tuner name should be
based on vt->type as well.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Drivers must be able to rely on s_power to power up subdevices.
Note that at this moment no driver attempts to power up tuners. This probably
isn't surprising since s_power(1) was never implemented in tuner-core.c until
now.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Prohibit attempts to change the tuner to a type that is different
from the device node the ioctl is called from. I.e. the type must
be RADIO for a radio node and ANALOG_TV for a video/vbi node.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Get rid of a number of unnecessary tuner_dbg messages by simplifying
the std fixup function.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The tuner ops g_frequency, g_tuner and s_tuner require that the tuner type
field is filled in. Document this.
The tuner-core doc is based on a patch from Mauro Carvalho Chehab <mchehab@redhat.com>.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix typo: g_tuner should have been s_tuner.
Tested with a bttv card.
Cc: stable@kernel.org
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The tuner-core subdev requires that the type field of v4l2_tuner is
filled in correctly. This is done in v4l2-ioctl.c, but pvrusb2 doesn't
use that yet, so we have to do it manually based on whether the current
input is radio or not.
Tested with my pvrusb2.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Mike Isely <isely@pobox.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The subdevs are supposed to receive a valid tuner type for the g_frequency
and g/s_tuner subdev ops. Some drivers do this, others don't. So prefill
this in v4l2-ioctl.c based on whether the device node from which this is
called is a radio node or not.
The spec does not require applications to fill in the type, and if they
leave it at 0 then the 'check_mode' call in tuner-core.c will return
an error and the ioctl does nothing.
Cc: stable@kernel.org
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
set_mode is called with t->type, which is the tuner type. Instead, use
t->mode which is the actual tuner mode (i.e. radio vs tv).
Cc: stable@kernel.org
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Both s_std and s_tuner are broken because set_mode_freq is called before the
new std (for s_std) and audmode (for s_tuner) are set.
This patch splits set_mode_freq in a set_mode and a set_freq and in s_std/s_tuner
first calls set_mode, and if that returns 0 (i.e. the mode is supported)
then they set t->std/t->audmode and call set_freq.
This fixes a bug where changing std or audmode would actually change it to
the previous value.
Discovered while testing analog TV standards for cx18 with a tda18271 tuner.
Cc: stable@kernel.org
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (46 commits)
[media] rc: call input_sync after scancode reports
[media] imon: allow either proto on unknown 0xffdc
[media] imon: auto-config ffdc 7e device
[media] saa7134: fix raw IR timeout value
[media] rc: fix ghost keypresses with certain hw
[media] [staging] lirc_serial: allocate irq at init time
[media] lirc_zilog: fix spinning rx thread
[media] keymaps: fix table for pinnacle pctv hd devices
[media] ite-cir: 8709 needs to use pnp resource 2
[media] V4L: mx1-camera: fix uninitialized variable
[media] omap_vout: Added check in reqbuf & mmap for buf_size allocation
[media] OMAP_VOUT: Change hardcoded device node number to -1
[media] OMAP_VOUTLIB: Fix wrong resizer calculation
[media] uvcvideo: Disable the queue when failing to start
[media] uvcvideo: Remove buffers from the queues when freeing
[media] uvcvideo: Ignore entities for terminals with no supported format
[media] v4l: Don't access media entity after is has been destroyed
[media] media: omap3isp: fix a potential NULL deref
[media] media: vb2: fix allocation failure check
[media] media: vb2: reset queued_count value during queue reinitialization
...
Fix up trivial conflict in MAINTAINERS as per Mauro
Due to commit cdda911c34, evdev only
becomes readable when the buffer contains an EV_SYN/SYN_REPORT event. If
we get a repeat or a scancode we don't have a mapping for, we never call
input_sync, and thus those events don't get reported in a timely
fashion.
For example, take an mceusb transceiver with a default rc6 keymap. Press
buttons on an rc5 remote while monitoring with ir-keytable, and you'll
see nothing. Now press a button on the rc6 remote matching the keymap.
You'll suddenly get the rc5 key scancodes, the rc6 scancode and the rc6
key spit out all at the same time.
Pressing and holding a button on a remote we do have a keymap for also
works rather unreliably right now, due to repeat events also happening
without a call to input_sync (we bail from ir_do_keydown before getting
to the point where it calls input_sync).
Easy fix though, just add two strategically placed input_sync calls
right after our input_event calls for EV_MSC, and all is well again.
Technically, we probably should have been doing this all along, its just
that it never caused any functional difference until the referenced
change went into the input layer.
input_sync once per IR signal. There was another hidden bug in the code
where we were calling input_report_key using last_keycode instead of our
just discovered keycode, which manifested with the reordering of calling
input_report_key and setting last_keycode.
Reported-by: Stephan Raue <sraue@openelec.tv>
CC: Stephan Raue <sraue@openelec.tv>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
CC: Jeff Brown <jeffbrown@android.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
While 0xffdc devices have their IR protocol hard-coded into the firmware
of the device, we have no known way of telling what it is if we don't
have the device's config byte already in the driver. Unknown devices
default to the imon native protocol, but might actually be rc6, so we
should set the driver up such that the user can load the rc6 keytable
from userspace and still have a working device ahead of its config byte
being added to the driver.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Another device with the 0xffdc device id, this one with 0x7e in the
config byte. Its an iMON VFD + RC6 IR, in a CoolerMaster 260 case.
Reported-by: Filip Streibl <filip@streibl.cz>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The comment says "wait 15ms", but the code says jiffies_to_msecs(15)
instead of msecs_to_jiffies(15). Fix that. Tested, works fine with both
rc5 and rc6 decode, in-kernel and via lirc userspace, with an HVR-1150.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
With hardware that has to use ir_raw_event_store_edge to collect IR
sample durations, we were not doing an event reset unless
IR_MAX_DURATION had passed. That's around 4 seconds. So if someone
presses up, then down, with less than 4 seconds in between, they'd get
the initial up, then up and down upon pressing down.
To fix this, I've lowered the "send a reset event" logic's threshold to
the input device's REP_DELAY (defaults to 500ms), and with an
saa7134-based GPIO-driven IR receiver in a Hauppauge HVR-1150, I get
*much* better behavior out of the remote now. Special thanks to Devin
for providing the hardware to investigate this issue.
CC: stable@kernel.org
CC: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Both consumers of RC_MAP_PINNACLE_PCTV_HD send along full RC-5
scancodes, so this update makes this keymap actually *have* full
scancodes, heisted from rc-dib0700-rc5.c. This should fix out of the box
remote functionality for the Pinnacle PCTV HD 800i (cx88 pci card) and
PCTV HD Pro 801e (em28xx usb stick).
CC: stable@kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Thanks to the intrepid testing and debugging of Matthijs van Drunen, it
was uncovered that at least some variants of the ITE8709 need to use pnp
resource 2, rather than 0, for things to function properly. Resource 0
has a length of only 1, and if you try to bypass the pnp_port_len check
and use it anyway (with either a length of 1 or 2), the system in
question's trackpad ceased to function.
The circa lirc 0.8.7 lirc_ite8709 driver used resource 2, but the value
was (amusingly) changed to 0 by way of a patch from ITE themselves, so I
don't know if there may be variants where 0 actually *is* correct, but
at least in this case and in the original lirc_ite8709 driver author's
case, it sure looks like 2 is the right value.
This fix should probably be applied to all stable kernels with the
ite-cir driver, lest we nuke more people's trackpads.
Tested-by: Matthijs van Drunen
CC: Juan Jesús García de Soria <skandalfo@gmail.com>
CC: stable@kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
mx1_camera_add_device() can return an uninitialized value of ret.
Signed-off-by: Andre Bartke <andre.bartke@gmail.com>
[g.liakhovetski@gmx.de: modified the fix to remove "ret" completely]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The usecase where, user allocates small size of buffer
through bootargs (video1_bufsize/video2_bufsize) and later from application
tries to set the format which requires larger buffer size, driver doesn't
check for insufficient buffer size and allows application to map extra buffer.
This leads to kernel crash, when user application tries to access memory
beyond the allocation size.
Added check in both mmap and reqbuf call back function,
and return error if the size of the buffer allocated by user through
bootargs is less than the S_FMT size.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
With addition of media-controller framework, now we have various
device nodes (/dev/videoX) getting created, so hardcoding
minor number in video_register_device() is not recommended.
So let V4L2 framework choose free minor number for the device.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The omap_vout_new_crop() function has possible bug, uses uninitialized
variable "crop.width/height" which is actually output of the function.
Instead we should be using "try_crop.width/height" to calculate the
resizer value.
Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When failing to start the camera we should disable the queue again, to
rollback into the same initial state. Otherwise re-trying will always
hit -EBUSY
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When freeing memory for the video buffers also remove them from the
irq & main queues.
This fixes an oops when doing the following:
open ("/dev/video", ..)
VIDIOC_REQBUFS
VIDIOC_QBUF
VIDIOC_REQBUFS
close ()
As the second VIDIOC_REQBUFS will cause the list entries of the buffers
to be cleared while they still hang around on the main and irc queues
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If a streaming interface has no supported format, the driver won't
create a video device for the associated terminal. Fix an oops by
ignoring that terminal when creating links between entities.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Entities associated with video device nodes are unregistered in
video_unregister_device(). This destroys the entity even though it can
still be accessed through open video device nodes.
Move the media_device_unregister_entity() call from
video_unregister_device() to v4l2_device_release() to ensure that the
entity isn't unregistered until the last reference to the video device
is released.
Also remove the media_entity_get()/put() calls from v4l2-dev.c. Those
functions were designed for subdevs, to avoid a parent module from being
removed while still accessible through board code. They're not currently
needed for video device nodes, and will oops when a hotpluggable device
is disconnected during streaming, as media_entity_put() called in
v4l2_device_release() tries to access entity->parent->dev->driver which
is set to NULL when the device is disconnected.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix a potential NULL pointer dereference by skipping registration of
external entities in case none are provided.
This is useful at least when testing mere memory-to-memory scenarios.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
__vb2_queue_alloc function returns the number of successfully allocated
buffers. There is no point in checking if the returned value is negative.
If this function returns 0, videobuf2 should just return -ENOMEM to
userspace, because no driver can work without memory buffers.
Reported-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
queued_count variable was left untouched during the queue reinitialization
in __vb2_queue_cancel, what might lead to mismatch between the real number
of queued buffers and queued_count variable.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This reverts commit 31901a078a.
Queue should be reinitialized on each REQBUFS() call even if the memory
access method and buffer count have not been changed. The user might have
changed the format and if we go the short path introduced in that commit,
the memory buffer will not be reallocated to fit with new format.
The previous patch was just over-engineered optimization, which just
introduced a bug to videobuf2.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add __GFP_NOWARN parameter to videobuf2 dma-sg allocator to prevent
kernel warning and stack dump if there is not enough memory available.
Videobuf2 and drivers should correctly handle no memory case, so there
is no need for stack dump and extensive log.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Unplugging a pwc cam while an app has the /dev/video# node open leads
to an oops in pwc_video_close when the app closes the node, because
the disconnect handler has free-ed the pdev struct pwc_video_close
tries to use. Instead of adding some sort of bandaid for this.
fix it properly using the v4l2 core's new(ish) behavior of keeping the
v4l2_dev structure around until both unregister has been called, and
all file handles referring to it have been closed:
Embed the v4l2_dev structure in the pdev structure and define a v4l2 dev
release callback releasing the pdev structure (and thus also the embedded
v4l2 dev structure.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Remove union version in the m5mols_get_version(), and read version information
directly. Also remove VERSION_SIZE.
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For now, the m5mols_read() share in case of I2C packet 1, 2, 4 byte(s) width.
So, this commit adds 3 functions - m5mols_read_u8/u16/u32() according to byte
width of I2C packet. And, the u32 variables in spite of u8 or u16 for fitting
to m5mols_read() having no choice, is replaced to have original byte width
like u8, u16, u32 as same reason.
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The main capture and the thumbnail image size registers were
erroneously defined to have 1 byte width, resulting in wrong
reported image size. Fix this by changing the registers width
to correct value.
Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
With multi-planar formats fmt.pix_mp member of struct v4l2_format
should be used rather than fmt.pix. Fix find_fmt() function to do
the right thing.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The buf_init buffer queue operation is optional and
buffer_init() does nothing, remove it.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Avoid dereferencing of NULL f->fmt. Correct size of the allocated
buffer in case the crop rectangle is smaller than the bounds
rectangle (configured with S_FMT). Also remove redundant check
for *num_buffer == 0 as this case is handled in videobuf2.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As pointed out on the lirc list by Andreas Dick, initial panel key
repeat suppression wasn't working, as we had no timevals accumulated
until after the first repeat. Also add a missing locking call.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Courtesy of information from Andreas Dick on the lirc list.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Hans Petter Selasky pointed out to me that we're leaking urbs when
mce_async_out is called. Its used both for configuring the hardware and
for transmitting IR data. In the tx case, mce_request_packet actually
allocates both a urb and the transfer buffer, neither of which was being
torn down. Do that in the tx callback.
CC: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There was a missing lock in fintek_suspend. Without the lock, its
possible the system will be in the middle of receiving IR (draining the
RX buffer) when we try to disable CIR interrupts.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Store the cdev pointer in struct irctl, allocated dynamically as needed,
rather than having a static array. At the same time, recycle some of the
saved memory to nudge the maximum number of lirc devices supported up a
ways -- its not that uncommon these days, now that we have the rc-core
lirc bridge driver, to see a system with at least 4 raw IR receivers.
(consider a mythtv backend with several video capture devices and the
possible need for IR transmit hardware).
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Aside from the initial "hey, lets make sure we've flushed any
pre-existing data on the device" call to mce_sync_in, every other one of
the calls was entirely superfluous. Ergo, remove them all, and rename
the one and only (questionably) useful one to reflect what it really
does. Verified on both gen2 and gen3 hardware to make zero difference.
Well, except that you no longer get a bunch of urb submit failures from
the unneeded mce_sync_in calls. Oh. And move that flush to a point
*after* we've wired up the inbound urb, or it won't do squat. I have
half a mind to just remove it entirely, but someone thought it was
necessary at some point, and it doesn't seem to hurt, so lets leave it
for the time being.
This excercise took place due to insightful questions asked by Hans
Petter Selasky, about the possible reuse of the inbound urb before it
was actually availble by mce_sync_in, so thanks to him for motivating
this cleanup.
Reported-by: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There's an SMK-device-id remote kit from I-O Data avaiable primarily in
Japan, which appears to have no tx hardware, but has rx functionality
that works with the mceusb driver by simply adding its device ID.
Reported-by: Jeremy Kwok <jeremykwok@desu.ca>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Using dev_dbg is more complexity than many users are able to deal with.
Make it easier to get debug spew feedback from them by adding an mce_dbg
printk macro that spews using dev_info when debug=1 is set for the
mceusb module.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
staging: iio: max517: Fix iio_info changes
Staging: mei: fix debug code
Staging: cx23885: fix include of altera.h
staging: iio: error case memory leak fix
staging: ath6kl: Fix a kernel panic during suspend/resume
staging: gma500: get control from firmware framebuffer if conflicts
staging: gma500: Skip bogus LVDS VBT mode and check for LVDS before adding backlight
staging: usbip: bugfix prevent driver unbind
staging: iio: industrialio-trigger: set iio_poll_func private_data
staging: rts_pstor: use bitwise operator instead of logical one
staging: fix ath6kl build when CFG80211 is not enabled
staging: brcm80211: fix for 'multiple definition of wl_msg_level' build err
staging: fix olpc_dcon build, needs BACKLIGHT_CLASS_DEVICE
Staging: remove STAGING_EXCLUDE_BUILD option
Staging: altera: move .h file to proper place
The cx23885 driver was including staging/altera.h, but that file has
moved back into the driver directory.
Why a non-staging driver was including a staging driver is beyond me,
but this fixes the build so everything is happy for now.
For the record, it's not ok for a non-staging driver to depend on a
staging one, as that implies that the non-staging one should also be in
the staging tree if that's needed.
Cc: Igor M. Liplianin <liplianin@netup.ru>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/media/video/soc_camera.c: In function ‘soc_camera_video_start’:
drivers/media/video/soc_camera.c:1515: warning: initialization discards qualifiers from pointer target type
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/uvc/uvc_entity.c: In function ‘uvc_mc_register_entities’:
drivers/media/video/uvc/uvc_entity.c:33: warning: ‘ret’ may be used uninitialized in this function
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The find_next_zero_bit() is called with the from and to arguments in the
wrong order. This results in the function always returning 0, and all
media devices being registered with minor 0. Furthermore, mdev->minor is
then used before being assigned with the find_next_zero_bit() return
value. This really makes sure we'll always use minor 0.
Fix this and let the system support more than one media device.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Internally separates the setting of the broadcast standard for the encoder &
decoder. Externally there's no change in functionality.
[awalls@md.metrocast.net: Edited to fix a checkpatch gripe about multiple
assignment and to remove a now unused DEFINE_WAIT() due to this patch]
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add sanity check to ivtvfb_pan_display() to ensure only valid values are used
to pan the display. Invalid values are rejected with -EINVAL
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it. Also use the
aligned fix.line_length and not the (possible) unaligned xres_virtual.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Two ivtv_msleep_timeout() calls are incorrectly flagged as interruptable. The
first is in the init sequence for a capture and is required for stable
hardware setup. The second is at the end of the capture and used to handle the
last data transfer. Failure to wait for this last transfer can result in stale
data being read at the start of the next capture.
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The frame rate variable was not initialized, so, the lowest frame rate was
used for most webcams.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Many users said that the default gain value (128) was giving white images.
The value which was in the original qc-usb driver (50) is better.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This file is replaced by autogain_functions.h.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The 'normal' bulk transfer size did not work for 800x600.
By git commit c42cedbb65, this 'normal' size was used for 1600x1200 only.
It will now be used back again for all resolutions but 800x600.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
By git commit c42cedbb65, the bulk transfer size was changed to a lower
value for resolutions != 1600x1200, but the image extraction routine still
worked with the previous value, giving bad truncated images.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
[media] v1.88 DM04/QQBOX Move remote to use rc_core dvb-usb-remote
[media] Add missing include guard to header file
[media] Inlined functions should be static
[media] Remove invalid parameter description
[media] cpia2: fix warning about invalid trigraph sequence
[media] s5p-csis: Add missing dependency on PLAT_S5P
[media] gspca/kinect: wrap gspca_debug with GSPCA_DEBUG
[media] fintek-cir: new driver for Fintek LPC SuperIO CIR function
[media] uvcvideo: Connect video devices to media entities
[media] uvcvideo: Register subdevices for each entity
[media] uvcvideo: Register a v4l2_device
[media] add V4L2-PIX-FMT-SRGGB12 & friends to docbook
[media] Documentation/DocBook: Rename media fops xml files
[media] Media DocBook: fix validation errors
[media] wl12xx: g_volatile_ctrl fix: wrong field set
[media] fix kconfig dependency warning for VIDEO_TIMBERDALE
[media] dm1105: GPIO handling added, I2C on GPIO added, LNB control through GPIO reworked
[media] Add support for M-5MOLS 8 Mega Pixel camera ISP
* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
gfs2: Drop __TIME__ usage
isdn/diva: Drop __TIME__ usage
atm: Drop __TIME__ usage
dlm: Drop __TIME__ usage
wan/pc300: Drop __TIME__ usage
parport: Drop __TIME__ usage
hdlcdrv: Drop __TIME__ usage
baycom: Drop __TIME__ usage
pmcraid: Drop __DATE__ usage
edac: Drop __DATE__ usage
rio: Drop __DATE__ usage
scsi/wd33c93: Drop __TIME__ usage
scsi/in2000: Drop __TIME__ usage
aacraid: Drop __TIME__ usage
media/cx231xx: Drop __TIME__ usage
media/radio-maxiradio: Drop __TIME__ usage
nozomi: Drop __TIME__ usage
cyclades: Drop __TIME__ usage
With the addition of a device platform mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.
Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.
Cc: Matti Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
driver to use dvb-usb-remote.
The remote(s) generates 24 bit NEC codes, lme2510 keymaps redefined.
Other minor fixes
fix le warning.
make sure frontend is detached on firmware change.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
s5p-csis is to be built only on S5P SoC platforms.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fixes media_build, and presumably certain other upstream kernel build
option combos.
Before:
CC [M] /home/jarod/src/media_build/v4l/kinect.o
/home/jarod/src/media_build/v4l/kinect.c:38:19: error: 'D_ERR' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:38:27: error: 'D_PROBE' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:38:37: error: 'D_CONF' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:38:46: error: 'D_STREAM' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:38:57: error: 'D_FRAM' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:38:66: error: 'D_PACK' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:39:2: error: 'D_USBI' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:39:11: error: 'D_USBO' undeclared here (not in a function)
/home/jarod/src/media_build/v4l/kinect.c:39:20: error: 'D_V4L2' undeclared here (not in a function)
make[3]: *** [/home/jarod/src/media_build/v4l/kinect.o] Error 1
After:
CC [M] /home/jarod/src/media_build/v4l/kinect.o
...
LD [M] /home/jarod/src/media_build/v4l/gspca_kinect.ko
...
profit
Reported-by: Nicolas Will <nico@youplala.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is a new driver for the Fintek LPC SuperIO CIR function, in the
Fintek F71809 chip. Hardware and datasheets were provided by Fintek, so
thanks go to them for supporting this effort.
This driver started out as a copy of the nuvoton-cir driver, and was
then modified as needed for the Fintek chip. The two share many
similaries, though the buffer handling for the Fintek chip is actually
nearly identical to the mceusb buffer handling, so the parser routine is
almost a drop-in copy of the mceusb buffer parser (a candidate for being
abstracted out into shared code at some point).
This initial code drop *only* supports receive, but the hardware does
support transmit as well. I really haven't even started to look at
what's required, but my guess is that its also pretty similar to mceusb.
Most people are probably only really interested in RX anyway though, so
I think its good to get this out there even with only RX.
(Nb: there are also Fintek-made mceusb receivers, which presumably, this
chip shares CIR hardware with).
This hardware can be found on at least Jetway NC98 boards and derivative
systems, and likely others as well. Functionality was tested with an
NC98 development board, in-kernel decode of RC6 (mce), RC5 (hauppauge)
and NEC-ish (tivo) remotes all successful, as was lirc userspace decode
of the RC6 remote.
CC: Aaron Huang <aaron_huang@fintek.com.tw>
CC: Tom Tsai <tom_tsai@fintek.com.tw>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The video devices associated to USB streaming terminals must be
connected to their associated terminal's media entity instead of being
standalone entities.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Userspace applications can now discover the UVC device topology using
the media controller API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As a first step to the media controller integration register a
v4l2_device for each UVC control interface and make the video_device a
child of the v4l2_device.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The function g_volatile_ctrl should change the current value rather than the
new value. These two drivers didn't do that, so the value is never reported
correctly.
In the future this will change since this behavior is clearly unexpected,
but for now fix these drivers first.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Here is patch for GPIO's handling.
It allows to support I2C on GPIO's and per board LNB control through GPIO's.
Also incuded some support for Hendrik Skarpeid card.
For those, who needs to tweak the driver,
I think it is clear how to change and test GPIO's for LNB and other GPIO related stuff now.
[mchehab@redhat.com: I2C_CLASS_TV_DIGITAL is deprecated. removed to avoid breaking compilation]
Signed-off-by: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (247 commits)
[media] gspca - sunplus: Fix some warnings and simplify code
[media] gspca: Fix some warnings tied to 'no debug'
[media] gspca: Unset debug by default
[media] gspca - cpia1: Remove a bad conditional compilation instruction
[media] gspca - main: Remove USB traces
[media] gspca - main: Version change to 2.13
[media] gspca - stk014 / t613: Accept the index 0 in querymenu
[media] gspca - kinect: Remove __devinitdata
[media] gspca - cpia1: Fix some warnings
[media] video/Kconfig: Fix mis-classified devices
[media] support for medion dvb stick 1660:1921
[media] tm6000: fix uninitialized field, change prink to dprintk
[media] cx231xx: Add support for Iconbit U100
[media] saa7134 add new TV cards
[media] Use a more consistent value for RC repeat period
[media] cx18: Move spinlock and vb_type initialisation into stream_init
[media] tm6000: remove tm6010 sif audio start and stop
[media] tm6000: remove unused exports
[media] tm6000: add pts logging
[media] tm6000: change from ioctl to unlocked_ioctl
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
b43: fix comment typo reqest -> request
Haavard Skinnemoen has left Atmel
cris: typo in mach-fs Makefile
Kconfig: fix copy/paste-ism for dell-wmi-aio driver
doc: timers-howto: fix a typo ("unsgined")
perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c
md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course').
treewide: fix a few typos in comments
regulator: change debug statement be consistent with the style of the rest
Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations"
audit: acquire creds selectively to reduce atomic op overhead
rtlwifi: don't touch with treewide double semicolon removal
treewide: cleanup continuations and remove logging message whitespace
ath9k_hw: don't touch with treewide double semicolon removal
include/linux/leds-regulator.h: fix syntax in example code
tty: fix typo in descripton of tty_termios_encode_baud_rate
xtensa: remove obsolete BKL kernel option from defconfig
m68k: fix comment typo 'occcured'
arch:Kconfig.locks Remove unused config option.
treewide: remove extra semicolons
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: sbp2: parallelize login, reconnect, logout
firewire: sbp2: octlet AT payloads can be stack-allocated
firewire: sbp2: omit Scsi_Host lock from queuecommand
firewire: core: use non-reentrant workqueue with rescuer
firewire: optimize iso queueing by setting wake only after the last packet
firewire: octlet AT payloads can be stack-allocated
firewire: ohci: optimize find_branch_descriptor()
firewire: ohci: avoid separate DMA mapping for small AT payloads
firewire: ohci: do not start DMA contexts before link is enabled
This patch removes warnings due to GSPCA_DEBUG unsetting. It implied
a simplification of the code.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch fixes the warnings raised by unsetting the option GSPCA_DEBUG.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The output of possible hardware or software errors does not depend on the
option GSPCA_DEBUG. This one is useful only when working on the main driver
or on a subdriver (bug fix, enhancement, new webcam/bridge/sensor or bug fix).
It is enabled in the gspca test version which is available from my web site.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch fixes a compilation error when GSPCA_DEBUG is not set.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The USB traces are better done by usbmon which is enabled in most Linux/GNU
distributions and which permits easier comparison with the USB exchanges of
other drivers.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
__devinit* must not be used in USB drivers.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The helper chips are classified by their function. Unfortunaltely,
with time, developers added their stuff into the wrong places.
Fix it by moving itens to be at the right place. Also add a new
category for sensors and for misc devices that are found only on
a certain specific board.
While here, fix two bad whitespaces at Kconfig.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
[mchehab@redhat.com: The same patch were sent by Alf and by Randoslaw.
I've applied the oldest version, just fixing the entry index]
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Tested-by: James Huk <huk256@gmail.com>
Tested-by: Alf Fahland <alf-f@gmx.de>
Signed-off-by: Radoslaw Warowny <radoslaww@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds support for the "Iconbit Analog Stick U100 FM".
Only composite & s-video inputs, no tuner support now.
Signed-off-by: Igor Novgorodov <igor@novg.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add new TV cards of Beholder Company. Just for autodetect.
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The default REP_PERIOD is 33 ms. This doesn't make sense for IR's,
as, in general, an IR repeat scancode is provided at every 110/115ms,
depending on the RC protocol. So, increase its default, to do a
better job avoiding ghost repeat events.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
The initialisation of vb_type in serialized_open was preventing
REQBUFS from working reliably. Remove it, and move the spinlock into
stream_init for good measure - it's only used when we have a stream
that supports videobuf anyway.
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Make sure pdev is not dereferenced when it is null
Signed-off-by: Huzaifa Sidhpurwala <huzaifas@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Holds the parameters detected by the demod.
- Updated on every call to get_frontend, either through ioctl or when
a frontend event occurs.
- Reset to input parameters after every call to set_frontend, tune or
search/track.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Drivers should be able to override properties returned to the user.
- The default values get prefilled from the cache.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Use const pointers and remove assignments.
- delivery_system already gets assigned by DTV_DELIVERY_SYSTEM
and dtv_property_cache_sync.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is supported in DVB-T2 mode, so added to the T/T2 frontend.
Signed-off-by: Steve Kerrison <steve@stevekerrison.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/common/tuners/mxl5005s.c: In function ‘mxl5005s_set_params’:
drivers/media/common/tuners/mxl5005s.c:4016: warning: enumeration value ‘BANDWIDTH_5_MHZ’ not handled in switch
drivers/media/common/tuners/mxl5005s.c:4016: warning: enumeration value ‘BANDWIDTH_10_MHZ’ not handled in switch
drivers/media/common/tuners/mxl5005s.c:4016: warning: enumeration value ‘BANDWIDTH_1_712_MHZ’ not handled in switch
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/dvb/frontends/drxd_hard.c: In function ‘DRX_Start’:
drivers/media/dvb/frontends/drxd_hard.c:2327: warning: enumeration value ‘BANDWIDTH_5_MHZ’ not handled in switch
drivers/media/dvb/frontends/drxd_hard.c:2327: warning: enumeration value ‘BANDWIDTH_10_MHZ’ not handled in switch
drivers/media/dvb/frontends/drxd_hard.c:2327: warning: enumeration value ‘BANDWIDTH_1_712_MHZ’ not handled in switch
[mchehab@redhat.com: removed the status = status assignment after the switch]
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
[steve@stevekerrison.com: Remove private definitions from cxd2820r that existed before API was defined]
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Steve Kerrison <steve@stevekerrison.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
ictx->touch is intialied in imon_init_intf1, to the result of calling the
function that contains this code. Thus, in this code, input_free_device
should be called on touch itself.
A simplified version of the semantic match that finds this problem is:
(http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
local idexpression struct input_dev * x;
expression ra,rr;
position p1,p2;
@@
x = input_allocate_device@p1(...)
... when != x = rr
when != input_free_device(x,...)
when != if (...) { ... input_free_device(x,...) ...}
if(...) { ... when != x = ra
when forall
when != input_free_device(x,...)
\(return <+...x...+>; \| return@p2...; \) }
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
cocci.print_main("input_allocate_device",p1)
cocci.print_secs("input_free_device",p2)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Enable the IR support for the Hauppauge HVR-1150 and HVR-1120.
Thanks to Fernando Laudares Camargos for testing the patch.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Fernando Laudares Camargos <fernando.laudares.camargos@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is a new rc-core device driver for the IR transceivers made by
RedRat Ltd. (http://redrat.co.uk/). It started out life as an
out-of-lirc-tree lirc driver, maintained in its own repo on sourceforge,
by Stephen Cox. He started porting it to what was then ir-core, and I
finally picked it up about two week ago and did a fairly large overhaul
on it, and its now into a state where I'm fairly comfortable submitting
it here for review and inclusion in the kernel. I'm claiming authorship
of this driver, since while it started out as Stephen's work, its
definitely a derivative work now, at 876 lines added and 1698 lines
removed since grabbing it from sourceforge. Stephen's name is retained
as secondary author though, and credited in the headers. Those
interested in seeing how the changes evolved can (at least for now) look
at this branch in my git tree:
http://git.kernel.org/?p=linux/kernel/git/jarod/linux-2.6-ir.git;a=shortlog;h=refs/heads/redrat3
That won't be around forever though, and I'm doing this as a single
commit to go into mainline. Anyway...
I've successfully tested in-kernel decode of rc5, rc6 and nec remotes,
as well as lirc userspace decode of rc5 and rc6. There are still some
quirks here to sort out with rc5 lirc userspace decode, but I'm working
with the RedRat folks themselves to figure out what's going on there
(rc5 lirc decode works, but you only get an event on key release --
in-kernel rc5 decode behaves perfectly fine). Note that lirc decode of
rc6 is working perfectly. Transmit is also working, tested by pointing
the redrat3 at an mceusb transceiver, which happily picked up the
transmitted signals and properly decoded them.
There's no default remote for this hardware, so its somewhat arbitrarily
set to use the Hauppauge RC5 keymap by default. Easily changed out by
way of ir-keytable and irrelevant if you're using lircd for decode.
CC: Chris Dodge <chris@redrat.co.uk>
CC: Andrew Vincer <Andrew.Vincer@redrat.co.uk>
CC: Stephen Cox <scox_nz@yahoo.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Continuing with IR transmit after resuming from suspend seems fairly
useless, given that the only place we can actually end up suspending is
after IR has been send and we're simply mdelay'ing. Lets simplify the
resume path by just waiting on tx to complete in the suspend path, then
we know we can't be transmitting on resume, and reinitialization of the
hardware registers becomes more straight-forward.
CC: Juan Jesús García de Soria <skandalfo@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There was some rather odd spacing in a few of the ite8709-specific
functions that made it hard to read those sections of code. This is just
a simple reformatting.
CC: Juan Jesús García de Soria <skandalfo@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Just recently acquired an Asus Eee Box PC with an onboard IR receiver
driven by ite-cir (ITE8713 sub-variant). Works out of the box with the
ite-cir driver in 2.6.39, but stops working after a suspend/resume
cycle. Its fixed by simply reinitializing registers after resume,
similar to what's done in the nuvoton-cir driver. I've not tested with
any other ITE variant, but code inspection suggests this should be safe
on all variants.
Reported-by: Stephan Raue <sraue@openelec.tv>
CC: Juan Jesús García de Soria <skandalfo@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Eliminate a possible circular locking lockdep warning
- Make sure we don't try to unregister a vfd on a device w/a vga screen
- Always free imon context after devices are removed (display_close can
just error out w/no context)
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Set a default timeout (matching mceusb.c) and use
ir_raw_event_store_with_filter, which leads to better behavior when
using lirc userspace decoding with this hardware
- Fill in rx_resolution with the value we're using here (50us)
- Wire up input phys and device parent pointer
- Use device_init_wakeup() instead of device_set_wakeup_*()
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The M420 format is used by the Microsoft LifeCam Studio HD.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[laurent.pinchart@ideasonboard.com: split into v4l/uvcvideo patches]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add support to uvc driver for NOMMU arch including add function
uvc_queue_get_unmapped_area() and make some changes in uvc_queue_mmap().
So that uvc camera can be used on nommu arch like blackfin.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This camera driver supports only rising edge, which is the default
setting of the device. The function mt9m111_setup_pixfmt() overwrites
this setting. So the driver actually uses falling edge.
This patch corrects that.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
[g.liakhovetski@gmx.de: removed superfluous register write]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The setup of the pixel clock is done wrong in the mt9v022 driver.
The 'Invert Pixel Clock' bit has to be set to 1 for falling edge
and not for rising. This is not clearly described in the data
sheet.
Tested on pcm037 and pcm027/pcm990.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
soc_mbus_get_fmtdesc() returning NULL means only, that no standard
mediabus code -> fourcc conversion is known, this shouldn't be treated
as an error by drivers.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add new look-up entries for all mediabus codes, for which respective
fourcc codes exist.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
12-bit formats, similar to YUV 4:2:0 occupy 3 bytes for each two pixels
and cannot be described by any of the existing SOC_MBUS_PACKING_* macros.
This patch adds a new one SOC_MBUS_PACKING_1_5X8 to describe such
formats and extends soc_mbus_samples_per_pixel() to support it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Since V4L2_MBUS_FMT_* codes have become large and sparse, they cannot
be used as array indices anymore.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Recently mediabus pixel format codes have become a part of the user-
space API, at which time their values also have been changed from
contiguous numbers, running from 0 to sparse numbers with values
around 0x1000, 0x2000, 0x3000... This made them unsuitable for the
use as array indices. This patch switches soc-camera internal format
look-ups to not depend on values of those macros.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add an soc-camera host livecrop operation to implement live zoom. If
a host driver implements it, it should take care to preserve output
frame format, then live crop doesn't break streaming.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The .stop_streaming() videobuf2 operation has to be implemented to
guarantee, that video buffers are not written to after a STREAMOFF.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The .stop_streaming() videobuf2 operation has to be implemented to
guarantee, that video buffers are not written to after a STREAMOFF.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add the subdev driver for the MIPI CSIS units available in S5P and
Exynos4 SoC series. This driver supports both CSIS0 and CSIS1
MIPI-CSI2 receivers.
The driver requires Runtime PM to be enabled for proper operation.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
s5p-fimc now also implements a camera capture video node so move
it under the "Video capture devices" Kconfig menu. Also update
the entry to reflect the driver's coverage of EXYNOS4 SoCs and
separate the Makefile entry from the soc-camera drivers set.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use the expression "video stream" instead of "color camera" which is
more correct as the driver supports the RGB and IR image on the same
endpoint.
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Move large communications buffers out of stack and into device
structure. This prevents the frame size from being >1kB and fixes a
compiler warning when CONFIG_FRAME_WARN=1024:
drivers/media/video/gspca/kinect.c: In function ‘send_cmd.clone.0’:
drivers/media/video/gspca/kinect.c:202: warning: the frame size of 1548 bytes is larger than 1024 bytes
Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Drew Fisher <drew.m.fisher@gmail.com>
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- Return values should not be ORed. Abort early instead.
- Return -EINVAL instead of -1.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch removes the remaining on-stack buffer for USB DMA transfer.
This patch also reduces the stack memory usage.
Cc: stable@kernel.org
Cc: Florian Mickler <florian@mickler.org>
Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This fixes autoloading of the module.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
I misused the ktime API, and failed to remove some traces of the
in-kernel format conversion. Fix these, so the the driver builds
without warnings.
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Move the public API definitions to include/linux/uvcvideo.h and bump the
version number to 1.1.0. Compatibility with the old API is kept,
application can still be compiled against the private header and will
not break.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of passing the value down to the device and getting an error
back (or worse, crashing the firmware), return -ERANGE when the
requested menu entry is not supported.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Supported menu entries are reported by the device in response to the
GET_RES query. Use the information to return -EINVAL to userspace for
unsupported values when enumerating menu entries.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Set the FIX_BANDWIDTH quirk for the device.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The camera requires the PROBE_MINMAX quirk. Add a corresponding entry
in the device IDs list
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The TomTom navigation system used in the Sony XNV 660BT and 770BT
reports an RGB565 (RGBP) format, support it in the driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This makes the public driver API more uniform, in preparation of moving
uvcvideo.h to include/linux. Keep the old names for backward
compatibility with existing applications.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Those ioctls are deprecated, list them in the features removal schedule
for 2.6.42.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This ioctl extends UVCIOC_CTRL_GET/SET by not only allowing to get/set
XU controls but to also send arbitrary UVC commands to XU controls,
namely GET_CUR, SET_CUR, GET_MIN, GET_MAX, GET_RES, GET_LEN, GET_INFO
and GET_DEF. This is required for applications to work with XU controls,
so that they can properly query the size and allocate the necessary
buffers.
Signed-off-by: Martin Rubli <martin_rubli@logitech.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
To simplify maintainer support of this driver, bump the version to
1.5.0 - this will be the first version that is expected to support
mmap() for raw video frames.
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Acked-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The initial version of this patch (commit
d5976931639176bb6777755d96b9f8d959f79e9e) had some issues:
* It didn't correctly calculate the size of the YUV buffer for 4:2:2,
resulting in capture sometimes being offset by 1/3rd of a picture.
* There were a lot of variables duplicating information the driver
already knew, which have been removed.
* There was an in-kernel format conversion - libv4l can do this one,
and is the right place to do format conversions anyway.
* Some magic numbers weren't properly explained.
Fix all these issues, leaving just the move from videobuf to videobuf2
to do.
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Acked-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Currently 'fh' initialises to whatever happens to be on stack. This
looks like a typo and this patch fixes that.
Signed-off-by: Mariusz Kozlowski <mk@lab.zgora.pl>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Remove old DVB-T2 freq module param and detect DVB-T/T2 automatically.
Implementation is trial and error, if DVB-T does not lock try DVB-T2
and vice versa. That's done by replacing normal DVBFE_ALGO_SW with
DVBFE_ALGO_CUSTOM which gives better control for tuning process.
DVB-C still uses normal software ZigZag, DVBFE_ALGO_SW.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Make checkpatch.pl happy by fixing whitespaces introduced by
commit 79e8b8e3b8cbf67130247a3f6d25732373fe2f34
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
EM28174 is very similar as already supported EM2874.
I am not sure what are differences, but it could be analog support.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Register multiple FEs for same adapter. After that it is
possible to register two FEs for same adapter. For example
one for DVB-T and one for DVB-C.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Change firmware download split, which I introduced few patch earlier,
a little bit to make it more readable as requested [1].
Anyhow, for some reason this seems to increase compiled binary size
52 bytes, on my AMD64 box, which is rather much for so small change.
[1] http://www.spinics.net/lists/linux-media/msg31968.html
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is very rare I2C adapter hardware which can provide 32kB I2C write
as one write. Add .i2c_wr_max option to set desired max packet size.
Split transaction to smaller pieces according to that option.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Currently video capturing using streaming I/O method
doesn't work if capturing to overlay buffer took place
before.
When enabling the stream we have to check the overlay
enable driver flag and reset it so that the interrupt
handler won't execute the overlay interrupt path after
enabling DMA in streamon routine. Otherwise the capture
interrupt won't be handled correctly causing non working
VIDIOC_DQBUF ioctl.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Currently the driver enables overlay when running
VIDIOC_S_FMT ioctl with fmt type V4L2_BUF_TYPE_VIDEO_OVERLAY.
Actually, this is wrong. Add proper VIDIOC_OVERLAY support
instead of using VIDIOC_S_FMT for overlay enable.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
usb_altnum_to_altsetting() may return NULL. If it does we'll dereference a
NULL pointer in
drivers/media/video/gspca/stv06xx/stv06xx_pb0100.c::pb0100_start().
As far as I can tell there's not really anything more sensible than
-ENODEV that we can return in that situation, but I'm not at all intimate
with this code so I'd like a bit of review/comments on this before it's
applied.
Anyway, here's a proposed patch.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: Jean-Francois Moine <moinejf@free.fr>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Erik Andren <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Using ir_raw_event_store_with_filter() saves about 20 lines of code.
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If an IR command is sent (using the LIRC userspace) to rc-loopback
which doesn't include a trailing space, the result is that the message
won't be completely decoded. In addition, "leftovers" from a previous
transmission can be left until the next one. Fix this by faking a long
silence after the end of TX data.
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds preliminary IR TX capabilities to the
winbond-cir driver.
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Using bool instead of an int helps readability a bit.
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The MT9V032 is a parallel wide VGA sensor from Aptina (formerly Micron)
controlled through I2C.
The driver creates a V4L2 subdevice. It currently supports binning and
cropping, and the gain, auto gain, exposure, auto exposure and test
pattern controls.
Signed-off-by: Detlev Casanova <detlev.casanova@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Bits 4 and 5 on register 02 should always be set to 1.
Opera1/Bsru6/z0194a/mantis_vp1033
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Acked-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Issues with Register 02 causing spurious channel locking from standby.
Should have always bits 4 & 5 written to 1.
Lower nibble not used in any current driver. Usage if necessary can be
applied through initab to mcr_reg. stv0299 not out of standby before
writing inittab.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Acked-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use the core-assisted locking in fsl-viu driver and switch
to .unlocked_ioctl.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
users is always read or written with core->lock held. A plain int is
simpler and faster.
Tested-by: Andi Huber <hobrom@gmx.at>
Tested-by: Marlon de Boer <marlon@hyves.nl>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
mpeg_users is always read or written with core->lock held except
in mpeg_release (where it looks like a bug). A plain int is simpler
and faster.
Tested-by: Andi Huber <hobrom@gmx.at>
Tested-by: Marlon de Boer <marlon@hyves.nl>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It should not be possible to enter mpeg_open and acquire core->lock
without the blackbird driver being registered, so just error out if it
is not. This makes the code more readable and should prevent the bug
fixed by the patch "hold device lock during sub-driver initialization"
from resurfacing again.
Similarly, if we enter mpeg_release and acquire core->lock then either
the blackbird driver is registered (since open files keep it loaded)
or the sysadmin forced the driver's removal. In the latter case the
state will be inconsistent and this is worth a loud warning.
Tested-by: Andi Huber <hobrom@gmx.at>
Tested-by: Marlon de Boer <marlon@hyves.nl>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add and use a mutex to protect the cx88-mpeg device list. Previously
the BKL prevented races.
Based on work by Ben Hutchings <ben@decadent.org.uk>.
Tested-by: Andi Huber <hobrom@gmx.at>
Tested-by: Marlon de Boer <marlon@hyves.nl>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
cx8802_blackbird_probe makes a device node for the mpeg sub-device
before it has been added to dev->drvlist. If the device is opened
during that time, the open succeeds but request_acquire cannot be
called, so the reference count remains zero. Later, when the device
is closed, the reference count becomes negative --- uh oh.
Close the race by holding core->lock during probe and not releasing
until the device is in drvlist and initialization finished.
Previously the BKL prevented this race.
Reported-by: Andreas Huber <hobrom@gmx.at>
Tested-by: Andi Huber <hobrom@gmx.at>
Tested-by: Marlon de Boer <marlon@hyves.nl>
Cc: stable@kernel.org
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
