NAME¶
bktr
—
Brooktree Bt848/849/878/879 and Pinnacle PCTV video
capture driver
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:
- AOpen VA1000
- AVerMedia AVerTV Studio
- AVerMedia TF/FM-98
- ATI TV Wonder VE
- Hauppauge WinCast/TV
- Hauppauge WinTV-Go-FM
- Hauppauge WinTV-pci
- Hauppauge WinTV-radio
- Intel Smart Video Recorder III
- KWORLD PCI TV Tuner
- Miro PC TV
- Pinnacle PCTV Pro
- Pinnacle PCTV Rave
- PixelView PlayTV PAK
- PixelView PlayTV Pro (rev 4C, 9D)
- SIGMA TV II
- STB TV PCI Television Tuner
- Super TV Tuner
- TerraTec TValue
- V-Stream XPERT TV-PVR 878
- Video Highway XTreme
- VideoLogic Captivator PCI
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
⟨james@miller.cs.uwm.edu⟩,
Mark
Tinguely ⟨tinguely@plains.nodak.edu⟩,
Amancio Hasty
⟨hasty@star-gate.com⟩,
Roger
Hardiman ⟨roger@FreeBSD.org⟩ and a bunch of other people.
Support for Pinnacle PCTV Rave cards was added by
Branko Lankester
⟨branko@euro.net⟩.