Commit Graph

2918 Commits

Author SHA1 Message Date
Sakari Ailus
098c645e39 V4L/DVB (6216): V4L: Int if: add vidioc_int_g_ifparm, other updates
vidioc_int_g_ifparm can be used to obtain hardware-specific information
about the interface used by the slave.

Rearrange v4l2-int-device.h as well.

Also remove useless & characters.

Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:39 -03:00
Hans-Jürgen Koch
588005e100 V4L/DVB (6215): Bugfix for saa6588.c, add forgotten spin_lock_init()
There's a serious bug in saa6588.c, it uses a non-initialized spin_lock.
Funny thing is that it works fine with bttv, but completly freezes the
machine if e.g. saa7134 is loaded.

Thanks to Derek Philip for reporting this bug on the rdsd-devel list.

This patch adds the missing spin_lock_init().

Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:35 -03:00
Jean Delvare
39f46adef8 V4L/DVB (6214): usbvision: Don't support I2C_M_REV_DIR_ADDR
I2C adapters should only support I2C_M_REV_DIR_ADDR if they really have
to (i.e. if they are connected to a broken I2C device which needs this
deviation from the standard I2C protocol.) As no media chip driver
uses I2C_M_REV_DIR_ADDR, I don't think that the usbvision driver needs
to support it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Thierry Merle <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:35 -03:00
Jean Delvare
7fb0dfc853 V4L/DVB (6212): pvrusb2: I2C adapter tweaks from Jean Delvare
* I2C adapters aren't expected to handle I2C_M_NOSTART unless they
  really have to. As the pvrusb2 driver doesn't support it, I take it
  that it doesn't need it so it shouldn't mention it at all.
* I2C_FUNC_SMBUS_EMUL includes I2C_FUNC_SMBUS_BYTE_DATA so listing
  both is redundant.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:35 -03:00
Mike Isely
56585386e2 V4L/DVB (6211): pvrusb2: Allocate a debug mask bit for reporting video standard things
It's useful to see specific details for how the pvrusb2 driver is
figuring out things related to the video standard, independent of
other initialization activities.  So let's set up a separate debug
mask bit for this and turn it on.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:34 -03:00
Mike Isely
9f66d4eac6 V4L/DVB (6210): pvrusb2: Do a far better job at setting the default initial video standard
The v4l tveeprom logic tells us what video standards are supported by
the hardware, however it doesn't directly tell us what should be the
preferred initial standard.  For example "NTSC/NTSC-J" devices are
reported by tveeprom as support NTSC-M and PAL-M, and while that might
be true, in the vast majority of cases NTSC-M is really what the user
is going to want.  However the driver previously just arbitrarily
picked the "lowest numbered" standard as the initial default, which in
that case would have been PAL-M.  (And making matters more confusing -
this only caused real problems on 24xxx devices because the saa7115 on
29xxx seems to autodetect the right answer anyway.)  This change
implements an algorithm that uses the set of "supported" standards as
a hint to decide on the initial standard.  This algorithm ONLY comes
into play if the driver isn't specifically told what to do; said
another way - the user can always still change the standard via the
sysfs interface, via the usual V4L methods, or even specified as a
module parameter.  The idea here is only to pick a better starting
point if the user (or app) doesn't otherwise do something to set the
standard; otherwise this change has no real impact.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:34 -03:00
Mike Isely
1d643a3722 V4L/DVB (6209): pvrusb2: Better discriminate among device types
This is a bunch of cleanup in various places to improve behavior based
on actual device type being driven.  While this doesn't actually
affect operation with existing devices, it cleans things up so that it
will be easier / more deterministic when other devices are added.
Ideally we should make stuff like this table-driven, but for now this
is just a series of small incremental (read: safe) improvements.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:34 -03:00
Mike Isely
4db666cc3d V4L/DVB (6208): pvrusb2: Implement programmatic means to extract prom contents
The pvrusb2 driver already has a method for extracting the FX2's
program memory back out to a user application; this ability is used to
facilitate manual firmware extraction as per the procedure documented
on the pvrusb2 web site.  This change follows that pattern and
implements a corresponding method to grab the binary contents of the
PVR USB2 prom (which for PVR USB2 devices can contain information in
addition to the usual Hauppauge metadata).

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:34 -03:00
Mike Isely
401c27ce96 V4L/DVB (6207): pvrusb2: Fix a potential oops in an error leg cleanup
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:30 -03:00
Mike Isely
747f07961e V4L/DVB (6205): pvrusb2: Fix oops in error leg cleanup
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:30 -03:00
Simon Farnsworth
289ea1f033 V4L/DVB (6203): Fix SVideo input on KWorld DVB-T 220 boards
Fix SVideo input on KWorld DVB-T 220 boards. Without this patch, the
luma pin on the SVideo input is treated as a composite in, and the
chroma pin is ignored.

Also, fix the radio, and provide a second composite input for people who
are used to the existing composite on SVideo connector behaviour.

Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Reviewed-by: Hermann Pitton <hermann-pitton@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:30 -03:00
Michael Krufky
f139fa71c0 V4L/DVB (6200): cx23885: use a pointer to the required i2c bus in dvb_register function
Store a pointer to the required i2c_bus so that we do not put the wrong
analog demod into standby.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:29 -03:00
Steven Toth
a6a3f14035 V4L/DVB (6199): cx23885: Changes to allow demodulators on each transport bus
cx23885: Changes to allow demodulators on each transport bus.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:29 -03:00
Michael Krufky
9bc37caadf V4L/DVB (6196): cx23885: add support for DViCO FusionHDTV 5 Express
This patch adds digital ATSC / QAM support for the DViCO FusionHDTV5 Express.
Remote control is supported by ir-kbd-i2c, RTC is supported by rtc-isl1208.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:29 -03:00
Steven Toth
579f1163cd V4L/DVB (6195): Changes to support MPEG TS on VIDB
Changes to support MPEG TS on VIDB

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:28 -03:00
Steven Toth
6f074abb62 V4L/DVB (6194): Changes to support interrupts on VIDB
Changes to support interrupts on VIDB

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:28 -03:00
Michael Krufky
ccbe64c664 V4L/DVB (6193): cx23885: define Video B Interrupt Status register bit values
- define missing register bit values for VID_B
- corrected VID/VBI_B_GPCNT_CTL register addresses

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:28 -03:00
Steven Toth
661c7e44c5 V4L/DVB (6192): Ensure start_dma() is capable of starting dma on port VIDB
start_dma() would fail to start dma if a device used VIDB (portb).

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:28 -03:00
Steven Toth
bfde287c2f V4L/DVB (6191): Removed a redundant switch()
The switch() statement is no longer required.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:28 -03:00
Steven Toth
fc959befe0 V4L/DVB (6190): cx23885: GPIO fix for non HVR1800lp boards
The HVR1250 and HVR1800 boards need the s5h1409 demod GPIO enabled.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:14:27 -03:00
Trent Piepho
415927dcd1 V4L/DVB (6186): cx88-alsa: Remove some unused fields in card state struct
Not sure why they are there, but they don't do anything now.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:13:58 -03:00
Trent Piepho
82896f29d4 V4L/DVB (6184): cx88-alsa: Make volume control stereo
Use the balance control to make the mono volume control stereo.

Note that full range isn't supported.  The balance control attenuates one
channel by 0 to -63 dB, and the volume control provides additional attenuation
to both channels by another 0 to -63 dB.

So the channel with the most attenuation has a range of 0 to -126 dB, while
the other channel only has a range of 0 to -63 dB.  ALSA volume controls don't
appear to support this concept.  I just limited the range to 0 to -63 total.
Once you get to -63 dB, you're already at silence, so additional attenuation
is pretty much pointless anyway.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:31 -03:00
Michael Krufky
6fcecce7e1 V4L/DVB (6181): cx88: auto-load rtc and ir receiver i2c modules for FusionHDTV5 RT Gold
Auto-load ir-kbd-i2c for ir receiver support, and rtc-isl1208 for rtc 
support for the FusionHDTV5 RT Gold.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:31 -03:00
Michael Krufky
a1dec5160d V4L/DVB (6180): tuner: don't probe 0x6b or 0x6f on cx88 boards
Ignore 0x6b and 0x6f on cx88 boards. Some FusionHDTV cards
have an ir receiver at 0x6b and an RTC at 0x6f which can
get corrupted if probed.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:30 -03:00
Michael Krufky
3c44358c49 V4L/DVB (6179): Clean up FusionHDTV ir code
- fixed missing buttons in keymap.

- make function names & descriptions more generic,
  since this same ir receiver and remote is used in
  many FusionHDTV products.

- miscellaneous cleanups.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:27 -03:00
Chaogui Zhang
d54d698091 V4L/DVB (6178): add IR remote support for FusionHDTV 5 RT Gold
This patch adds support for the built-in IR receiver of the DViCO
Fusion HDTV5 RT GOLD PCI card, using FusionHDTV MCE remote controller.

Signed-off-by: Chaogui Zhang <czhang1974@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:26 -03:00
Steven Toth
2df9a4c2d8 V4L/DVB (6173): cx23885: Minor cleanup and important NMI comment placed in code
I wanted to document the NMI assert issue inside the code, even though
it's already documented in the patch history. If/when the next cx23887
revision appears, is may need to be enabled on that also.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:26 -03:00
Steven Toth
86184e06da V4L/DVB (6172): cx23885: Removing duplicate tuner and demod definitions
A number of Hauppauge boards share the same tuner and demod
configurations. This patch removes duplicate structures.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:25 -03:00
Steven Toth
31bae4a620 V4L/DVB (6171): cx23885: Cleaning up defines
Moving some defines into the correct header file.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:22 -03:00
Steven Toth
2e52f215be V4L/DVB (6170): cx23885: General cleanup of old code
Removed unused code.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:21 -03:00
Steven Toth
f29379c361 V4L/DVB (6169): Removed unused function mt2131_set_gpo()
Unused code is removed.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:20 -03:00
Steven Toth
a77743bc2d V4L/DVB (6168): cx23885: Added HVR1250 ATSC support
Adding support for the Hauppauge HVR1250 PCIe ATSC board.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:20 -03:00
Steven Toth
4823e9ee9f V4L/DVB (6167): cx23885: Changed PCI quirks to after bridge detech
Changed the pci_quirks function to detech the bridge type before setting
the NMI clear bit, rather than detecting based on unique board id.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:17 -03:00
Steven Toth
426d523664 V4L/DVB (6166): cx23885: Ensure pci_quirks is called after board identification
The pci_quirks function was being called too early during initialisation,
it needs to be called after the board has been identified.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:16 -03:00
Michael Krufky
b86b580244 V4L/DVB (6165): cx23885: fix Kconfig dependencies
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:15 -03:00
Michael Krufky
3c5666aee3 V4L/DVB (6164): cx23885: turn off i2c_debug by default
Turn off i2c_debug by default, to make the driver less verbose.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:15 -03:00
Michael Krufky
60a41d3b61 V4L/DVB (6163): cx23885: remove old comments
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:12 -03:00
Michael Krufky
44a6481dcd V4L/DVB (6162): cx23885: whitespace cleanups
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:11 -03:00
Michael Krufky
70ebd70573 V4L/DVB (6161): cx23885-dvb.c doesnt need to include dvb-pll.h
The dvb-pll module is not being used by this driver.
Remove the unneeded #include.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:10 -03:00
Steven Toth
047646bfbb V4L/DVB (6159): General code cleanup
Removed if 0'd code, removed cx88 references.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:09 -03:00
Steven Toth
fe475163ff V4L/DVB (6158): Fix MT2131 tuner lock status problem
The mt2131 tuner reports lock even when the hardware should not
lock. This patch allows the s5h1409 demodulator to be configured to query
either the tuner driver for status, or the demodulator status when the
application requests lock status. This avoids returning false CARRIER
and/or SIGNAL lock status.

S5H1409 and MT2131 drivers.  This is the remainder of the changeset, which
only touches cx23885-dvb.c

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:06 -03:00
Steven Toth
e133be0f58 V4L/DVB (6157): Removed the need to manually define .bridge for each card
Moved the field from cx23885_board to cx23885_dev and added code to
iautomatically set the bridge type based on the pci device id.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:06 -03:00
Steven Toth
0fc0739ba9 V4L/DVB (6156): Added the I2C_FUNC_I2C support to the cx23885 i2c algo definition
This is required to support the cx258xx family of audio and video decoders.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:05 -03:00
Steven Toth
3328e4fbf1 V4L/DVB (6155): Cleanup/remove code to access the sram memory maps
The cx23885 and cx23887 family use two different memory maps which govern
how the internal SRAM is configured. This patch streamlines the access to those
structures.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:02 -03:00
Steven Toth
3bd4065961 V4L/DVB (6154): NMI hang and corrupt transport packet fixes
The sram allocations for the cx23887 differ slightly from the cx23885.
This patch modifies the cx23887 specific sram memory map to reflect this.
As a result, interrupts and DMA handling have also been enabled in
cx23885_start_dma() for 887 specific boards.

ATSC streaming is now available on cx23885 and cx23887 bridges.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:01 -03:00
Steven Toth
a2129af5b6 V4L/DVB (6153): I2C bus 3 register was incorrect
I2C bus 3 was being initialised with the incorrect address register.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:00 -03:00
Michael Krufky
03121f05f9 V4L/DVB (6152): cx23885: forward compatibility fixes for recent kernels
- fix #include for <media/video-buf-dvb.h>
- fix cx23885_irq declaration for 2.6.19 and later

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:08:00 -03:00
Michael Krufky
2f52cdb209 V4L/DVB (6151): include drivers/media/video/cx23885/Kconfig
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:07:59 -03:00
Steven Toth
d19770e517 V4L/DVB (6150): Add CX23885/CX23887 PCIe bridge driver
This is a new framework to support boards based on the CX23885/7 PCIe
bridge. The framework supports digital (no analog yet)

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:07:56 -03:00
Michael Krufky
f61b48f7a8 V4L/DVB (6142): cx25840: fix build warning
Fix the following build warning:

 CC [M]  cx25840-core.o

cx25840-core.c: In function 'init_dll1':
cx25840-core.c:147: warning: implicit declaration of function 'udelay'


Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:07:51 -03:00