.\" $NetBSD: bktr.4,v 1.19 2018/08/31 19:36:28 sevan Exp $
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.\" Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005 Thomas Klausner
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.Dd August 30, 2011
.Dt BKTR 4
.Os
.Sh NAME
.Nm bktr
.Nd Brooktree 848 compatible TV card driver
.Sh SYNOPSIS
.Cd "bktr* at pci? dev ? function ?"
.Cd radio* at bktr?
.Pp
.In dev/ic/bt8xx.h
.Pp
.Cd options BKTR_OVERRIDE_CARD=n
.Cd options BKTR_OVERRIDE_TUNER=n
.Cd options BKTR_OVERRIDE_DBX=n
.Cd options BKTR_OVERRIDE_MSP=n
.Cd options BKTR_SYSTEM_DEFAULT=n
.Cd options BKTR_USE_PLL
.Cd options BKTR_GPIO_ACCESS
.Cd options BKTR_NO_MSP_RESET
.\" The following options have no effect:
.\" .Cd options BKTR_430_FX_MODE
.\" .Cd options BKTR_SIS_VIA_MODE
.Sh DESCRIPTION
This driver supports video capture (frame grabber) and TV tuner cards
based on the
.Tn Brooktree
.Tn Bt848 ,
.Tn Bt848A ,
.Tn Bt849A ,
.Tn Bt878 ,
and
.Tn Bt879
chips.
.Pp
Note that
.Nm
is not part of the
.Xr dtv 4
framework.
.Pp
Supported cards include most cards by
.Tn AVerMedia ,
.Tn Hauppauge ,
.Tn Leadtek ,
.Tn Miro ,
.Tn Pinnacle ,
.Tn Pixelview ,
.Tn Terratec ,
and some other companies, especially all cards based on the
.Tn Brooktree
.Tn Bt848 ,
.Tn Bt848A ,
.Tn Bt849A ,
.Tn Bt878 ,
or
.Tn Bt879
chips.
A notable exception are the
.Tn ATI
.Tn All-in-Wonder
cards.
.Pp
The following kernel configuration options are available:
.Bl -ohang
.It Cd options BKTR_OVERRIDE_CARD=n
If the card is not recognized correctly by the auto-detection routine,
it can be overridden by setting this option to the appropriate
value.
The following values are allowed:
.Bl -tag -width 2n -compact
.It 1
Pinnacle Systems (Miro) TV,
.It 2
Hauppauge WinCast/TV,
.It 3
STB TV/PCI,
.It 4
Intel Smart Video III and Videologic Captivator PCI,
.It 5
IMS TV Turbo,
.It 6
AVerMedia TV/FM,
.It 7
MMAC Osprey,
.It 8
NEC PK-UG-X017,
.It 9
I/O DATA GV-BCTV2/PCI,
.It 10
Animation Technologies FlyVideo,
.It 11
Zoltrix TV,
.It 12
KISS TV/FM PCI,
.It 13
Video Highway Xtreme,
.It 14
Askey/Dynalink Magic TView,
.It 15
Leadtek WinFast TV 2000/VC100,
.It 16
TerraTec TerraTV+,
and
.It 17
TerraTec TValue.
.El
.It Cd options BKTR_OVERRIDE_TUNER=n
If the TV tuner is not recognized correctly by the auto-detection
routine, it can be overridden by setting this option to the
appropriate value.
Known values are:
.Bl -tag -width 2n -compact
.It 1
Temic NTSC,
.It 2
Temic PAL,
.It 3
Temic SECAM,
.It 4
Philips NTSC,
.It 5
Philips PAL,
.It 6
Philips SECAM,
.It 7
Temic PAL I,
.It 8
Philips PAL I,
.It 9
Philips FR1236 NTSC FM,
.It 10
Philips FR1216 PAL FM,
.It 11
Philips FR1236 SECAM FM,
.It 12
ALPS TSCH5 NTSC FM,
and
.It 13
ALPS TSBH1 NTSC.
.El
.It Cd options BKTR_OVERRIDE_DBX=n
To override detection of the BTSC (dbx) chip, set this to
.Em 1
if you have one, or
.Em 0
if not.
.It Cd options BKTR_OVERRIDE_MSP=n
To override detection of the MSP 34xx chip, set this to
.Em 1
if you have one, or
.Em 0
if not.
.It Cd options BKTR_SYSTEM_DEFAULT=n
If this option is set to
.Em BROOKTREE_PAL
default to PAL, else to NTSC.
.It Cd options BKTR_USE_PLL
Default to PLL instead of XTAL.
.It Cd options BKTR_GPIO_ACCESS
Use
.Fn ioctl Ns s
for direct GPIO access.
.It Cd options BKTR_NO_MSP_RESET
Skip the MSP reset.
This option is handy if you initialize the MSP audio in another
operating system first and then do a soft reboot.
.\" The following options have no effect:
.\" .It Cd options BKTR_430_FX_MODE
.\" .It Cd options BKTR_SIS_VIA_MODE
.El
.Sh VIDEO CAPTURE INTERFACE
The video capture interface to
.Nm
is accessed through the
.Pa /dev/bktrN
devices.
The following
.Xr ioctl 2
commands are supported on the Brooktree848 video capture interface:
.Bl -tag -width Ds
.It Dv METEORSFMT Fa "unsigned long *"
This command sets the video format, also sometimes referred to as the
video norm.
The supported formats are:
.Pp
.Bl -tag -compact -width 28n
.It Dv METEOR_FMT_NTSC
NTSC
.It Dv METEOR_FMT_PAL
PAL
.It Dv METEOR_FMT_SECAM
SECAM
.It Dv METEOR_FMT_AUTOMODE
hardware default
.El
.It Dv METEORGFMT Fa "unsigned long *"
This command retrieves the current video format to the
.Vt unsigned long *
argument.
.It Dv METEORSETGEO Fa "struct meteor_geomet *"
This command sets the video properties that affect the bit size of
a frame through the
.Vt meteor_geomet *
argument.
.Bd -literal
struct meteor_geomet {
	u_short		rows;	 /* height in pixels*/
	u_short		columns; /* width in pixels */
	u_short		frames;
	u_long		oformat;
}
.Ed
.Pp
The
.Va frames
field is the number of frames to buffer.
Currently only 1 frame is supported for most operations.
.Pp
The
.Va oformat
field is a bit-field describing the output pixel format
type and which video fields to capture.
The following are supported pixel format types:
  .Pp
.Bl -tag -compact -width 28n
.It Dv METEOR_GEO_RGB16
16-bit RGB
.It Dv METEOR_GEO_RGB24
24-bit RGB in 32 bits
.It Dv METEOR_GEO_YUV_PACKED
16-bit 4:2:2 YUV
.It Dv METEOR_GEO_YUV_PLANAR
16-bit 4:2:2 YUV
.It Dv METEOR_GEO_YUV_UNSIGNED
unsigned UV
.It Dv METEOR_GEO_YUV_422
.It Dv METEOR_GEO_YUV_12
.It Dv METEOR_GEO_YUV_9
.El
.Pp
The following are supported field capture modes:
.Pp
.Bl -tag -compact -width 28n
.It Dv METEOR_GEO_ODD_ONLY
only odd fields
.It Dv METEOR_GEO_EVEN_ONLY
only even fields
.El
.Pp
By default, frames will consist of both the odd and even fields.
.It Dv METEORGSUPPIXFMT Fa "struct meteor_pixfmt *"
This command is used interactively to fetch descriptions of supported
output pixel formats into the
.Vt meteor_pixfmt *
argument.
.Bd -literal
struct meteor_pixfmt {
	u_int          index;
	METEOR_PIXTYPE type;
	u_int          Bpp;		/* bytes per pixel */
	u_long         masks[3];	/* YUV bit masks */
	unsigned       swap_bytes :1;
	unsigned       swap_shorts:1;
};
.Ed
.Pp
To query all the supported formats, start with an index field of 0 and
continue with successive encodings (1, 2, ...) until the command returns
an error.
.It Dv METEORSACTPIXFMT Fa "int *"
This command sets the active pixel format.
The
.Vt int *
argument is the index of the pixel format as returned by
.Dv METEORGSUPPIXFMT .
.It Dv METEORGACTPIXFMT Fa "int *"
This command fetches the active pixel format index into the
.Vt int *
argument.
.It Dv METEORSINPUT Fa "unsigned long *"
This command sets the input port of the Brooktree848 device.
The following are supported input ports:
.Pp
.Bl -tag -compact -width 28n
.It Dv METEOR_INPUT_DEV0
composite (RCA)
.It Dv METEOR_INPUT_DEV1
tuner
.It Dv METEOR_INPUT_DEV2
composite S-video
.It Dv METEOR_INPUT_DEV3
mystery device
.It Dv METEOR_INPUT_DEV_RGB
rgb meteor
.It Dv METEOR_INPUT_DEV_SVIDEO
S-Video
.El
.Pp
Not all devices built with Brooktree848 chips support the
full list of input ports.
.It Dv METEORGINPUT Fa "unsigned long *"
This command retrieves the current input port to the
.Vt unsigned long *
argument.
.It Dv METEORSFPS Fa "unsigned short *"
This command sets the number of frames to grab each second.
Valid frame rates are integers from 0 to 30.
.It Dv METEORGFPS Fa "unsigned short *"
This command fetches the number of frames to grab each second into the
.Vt unsigned short *
argument.
.It Dv METEORCAPTUR Fa "int *"
This command controls capturing of video data.
The following are valid arguments:
.Pp
.Bl -tag -compact -width 28n
.It Dv METEOR_CAP_SINGLE
capture one frame
.It Dv METEOR_CAP_CONTINOUS
continuously capture
.It Dv METEOR_CAP_STOP_CONT
stop continuous capture
.El
.It Dv METEORSSIGNAL Fa "unsigned int *"
This command controls the signal emission properties of
.Nm .
If the
.Vt unsigned int *
argument is a valid signal, then that signal will be emitted
when either a frame or field capture has completed.
To select between frame or field signalling, the following arguments
are used:
.Pp
.Bl -tag -compact -width 28n
.It Dv METEOR_SIG_FRAME
signal every frame
.It Dv METEOR_SIG_FIELD
signal every field
.El
.Pp
By default, signals will be generated for every frame.
Generation of signals is terminated with the
.Dv METEOR_SIG_MODE_MASK
argument.
.El
.Sh TUNER INTERFACE
Most cards supported by this driver feature a hardware television tuner
on the I2C bus.
The tuner interface to
.Nm
is accessed through the
.Pa /dev/tunerN
devices.
The following
.Xr ioctl 2
commands are supported on the tuner interface:
.Bl -tag -width Ds
.It Dv TVTUNER_SETTYPE Fa "unsigned int *"
This command sets the tuner's TV channel set, also sometimes called the TV
channel band.
This setting is used to calculate the proper tuning frequencies.
The desired channel set must be selected before attempting to set the tuner
channel or frequency.
The following is a list of valid channel sets:
.Pp
.Bl -tag -compact -width 28n
.It Dv CHNLSET_NABCST
North America broadcast
.It Dv CHNLSET_CABLEIRC
North America IRC cable
.It Dv CHNLSET_CABLEHRC
North America HRC cable
.It Dv CHNLSET_WEUROPE
Western Europe
.It Dv CHNLSET_JPNBCST
Japan broadcast
.It Dv CHNLSET_JPNCABLE
Japan cable
.It Dv CHNLSET_XUSSR
Russia
.It Dv CHNLSET_AUSTRALIA
Australia
.It Dv CHNLSET_FRANCE
France
.El
.It Dv TVTUNER_GETTYPE Fa "unsigned int *"
This command fetches the tuner's current channel set to the
.Vt unsigned int *
argument.
.It Dv TVTUNER_SETCHNL Fa "unsigned int *"
This command sets the tuner's frequency to a specified channel in the
current channel set.
.It Dv TVTUNER_GETCHNL Fa "unsigned int *"
This command fetches the last selected channel.
Note that it is not necessarily the current channel.
In particular, changing the tuner's frequency by a command other than
.Dv TVTUNER_SETCHNL
will not update this setting, and it defaults to 0 on driver
initialization.
.It Dv TVTUNER_SETFREQ Fa "unsigned int *"
This command sets the tuner's frequency to 1/16th the value of the
.Vt unsigned int *
argument, in MHz.
Note that the current channelset is used to determine frequency
offsets when this command is executed.
.It Dv TVTUNER_GETFREQ Fa "unsigned int *"
This command fetches the tuner's current frequency to the
.Vt unsigned int *
argument.
Note that this value is 16 times the actual tuner frequency, in MHz.
.It Dv BT848_SAUDIO Fa "int *"
This command controls the audio input port and mute state.
The following is a list of valid arguments:
.Pp
.Bl -tag -compact -width 18n
.It Dv AUDIO_TUNER
tuner audio port
.It Dv AUDIO_EXTERN
external audio port
.It Dv AUDIO_INTERN
internal audio port
.It Dv AUDIO_MUTE
mute audio
.It Dv AUDIO_UNMUTE
unmute audio
.El
.It Dv BT848_GAUDIO Fa "int *"
This command fetches the audio input and mute state bits to the
.Vt int *
argument.
.El
.Sh FILES
.Bl -tag -width /dev/tuner* -compact
.It Pa /dev/bktr*
.Nm
driver interface device
.It Pa /dev/tuner*
.Nm
tuner interface device
.It Pa /dev/vbi*
teletext interface device
.El
.Sh SEE ALSO
.Xr options 4 ,
.Xr pci 4 ,
.Xr radio 4 ,
.Pa pkgsrc/audio/xmradio ,
.Pa pkgsrc/multimedia/ffmpeg ,
.Pa pkgsrc/multimedia/fxtv
.Sh HISTORY
The
.Nm
driver appeared in
.Fx 2.2
and
.Nx 1.5 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was originally written by
.An "Amancio Hasty"
for
.Fx
and is now maintained by
.An "Roger Hardiman" .
.Nx
porting was done by
.An "Bernd Ernesti" ,
.An "Berndt Josef Wulf" ,
.An "Matthias Scheler" ,
and
.An "Thomas Klausner" .