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bktr (4)
  • >> bktr (4) ( FreeBSD man: Специальные файлы /dev/* )

  • BSD mandoc
     

    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 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 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 1 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 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 driver first appeared in Fx 2.2 .  

    AUTHORS

    An -nosplit This driver is based on the work of An Jim Lowe Aq [email protected] , An Mark Tinguely Aq [email protected] , An Amancio Hasty Aq [email protected] , An Roger Hardiman Aq [email protected] and a bunch of other people. Support for Pinnacle PCTV Rave cards was added by An Branko Lankester Aq [email protected] .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    HARDWARE
    FILES
    SEE ALSO
    HISTORY
    AUTHORS


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