tail head cat sleep
QR code linking to this page

Manual Pages  — BKTR

NAME

bktr – Brooktree Bt848/849/878/879 and Pinnacle PCTV video capture driver

CONTENTS

SYNOPSIS

device bktr

device iicbus device iicbb device smbus

DESCRIPTION

The bktr driver provides support for PCI video capture and VBI capture on low cost, high performance boards. The driver is based on the Matrox Meteor driver and uses the same API. The bktr driver should support most video cards based on the Brooktree Bt848/849/878/879 Video Capture Chip. Also supported are most Pinnacle PCTV video cards. Furthermore, the driver supports FM Radio if the tuner supports it.

The driver currently supports the following features:

PCI to PCI dma transfer
clipping
yuv
rgb16
rgb24
rgb32

On the supported cards, tuners and other components are interconnected with an I2C bus. The Brooktree848 chips act as a master device on the bus to control them. Therefore, iicbus(4), iicbb(4) and smbus(4) controller declarations are mandatory to activate bktr support.

The following kernel parameters may be used to further configure the driver:

options BROOKTREE_ALLOC_PAGES=xxx specifies the number of contiguous pages to allocate when successfully probed. The default number of pages allocated by the kernel is 216. This means that there are (216*4096) bytes available for use.

options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_PAL
options BROOKTREE_SYSTEM_DEFAULT=BROOKTREE_NTSC
One of these options can be used to set the default video format for the driver. This fixed random hangs and lockups with the VideoLogic Captivator PCI card.

The following sysctls may be used to further configure the driver:

sysctl hw.bt848.card=nnnn This can be used to override the card make which was detected at boot time. ‘nnnn’ is set to an integer from 1 to 23 taken from the following table:

MIRO 1
HAUPPAUGE 2
STB 3
INTEL 4
IMS_TURBO 5
AVER_MEDIA 6
OSPREY 7
NEC_PK 8
IO_GV 9
FLYVIDEO 10
ZOLTRIX 11
KISS 12
VIDEO_HIGHWAY_XTREME 13
ASKEY_DYNALINK_MAGIC_TVIEW 14
LEADTEK 15
TERRATVPLUS 16
IO_BCTV3 17
AOPEN_VA1000 18
PINNACLE_PCTV_RAVE 19
PIXELVIEW_PLAYTV_PAK 20
TERRATVALUE 21
PIXELVIEW_PLAYTV_PRO_REV_4C 22
Bt848_MAX 23

sysctl hw.bt848.tuner=nnnn This can be used to override the tuner make which was detected at boot time. ‘nnnn’ is set to an integer from 0 to 16 taken from the following table:

NO_TUNER 0
TEMIC_NTSC 1
TEMIC_PAL 2
TEMIC_SECAM 3
PHILIPS_NTSC 4
PHILIPS_PAL 5
PHILIPS_SECAM 6
TEMIC_PALI 7
PHILIPS_PALI 8
PHILIPS_FR1236_NTSC 9 /* These have FM Radio support */
PHILIPS_FR1216_PAL 10 /* These have FM Radio support */
PHILIPS_FR1236_SECAM 11 /* These have FM Radio support */
ALPS_TSCH5 12
ALPS_TSBH1 13
MT2032 14
LG_TPI8PSB12P_PAL 15
Bt848_MAX 16

HARDWARE

The bktr driver supports video capture cards based on the Brooktree Bt848/849/878/879 chips, as well as Pinnacle PCTV cards, including:

FILES

/usr/share/examples/meteor
  Examples of what you can do with the (similarly designed) Meteor driver.
/usr/ports/multimedia/fxtv
  A TV and Camera display program utilizing the bktr driver - requires that The X Window System and The Ports Collection also be installed.
/usr/ports/misc/alevt A program to capture and display Teletext (VideoText) pages - requires that The X Window System and The Ports Collection also be installed.
/usr/ports/audio/xmradio An FM Radio Tuner for cards which have an FM Radio tuner fitted - requires that The X Window System and The Ports Collection also be installed. It also requires Motif or the lesstif port.

SEE ALSO

meteor(4)

HISTORY

The bktr driver first appeared in FreeBSD 2.2 .

AUTHORS

This driver is based on the work of Jim Lowe <Mt james@miller.cs.uwm.edu>, Mark Tinguely <Mt tinguely@plains.nodak.edu>, Amancio Hasty <Mt hasty@star-gate.com>, Roger Hardiman <Mt roger@FreeBSD.org> and a bunch of other people. Support for Pinnacle PCTV Rave cards was added by Branko Lankester <Mt branko@euro.net>.

BKTR (4) January 18, 2006

tail head cat sleep
QR code linking to this page


Please direct any comments about this manual page service to Ben Bullock.

Not only is UNIX dead, it's starting to smell really bad.
— Rob Pike