Date: Tue, 17 Jan 2006 15:54:34 -0800 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: "Frank J. Beckmann" <frank@barda.agala.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: [info] PixelView PlayTV Pro PV-BT878P+ rev.9D works with bktr Message-ID: <20060117235433.GT69162@funkthat.com> In-Reply-To: <200601180019.21503.frank@barda.agala.net> References: <43CC2600.20605@orchid.homeunix.org> <20060117112644.acwpsuc33ls08404@netchild.homeip.net> <20060117153502.V33572@server.arg.sj.co.uk> <200601180019.21503.frank@barda.agala.net>
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Frank J. Beckmann wrote this message on Wed, Jan 18, 2006 at 00:19 +0100:
> am Dienstag, 17. Januar 2006 16:39 schrieb Andrew Gordon:
> > On Tue, 17 Jan 2006, Alexander Leidinger wrote:
> > > > none1@pci0:13:1: class=0x048000 card=0x00000000 chip=0x0878109e
> > > > rev=0x11 hdr=0x00
> > > > vendor = 'Conexant (Was: Brooktree Corp)'
> > > > device = 'Bt878/Fusion878A Video Capture (Audio Section)'
> > > > class = multimedia
> > >
> > > Does someone has a datasheet for this soundchip which is usable to write
> > > a driver? Maybe we could lure Ariff into writting a driver (perhaps by
> > > giving a card with such a chip to him as a gift) if we get a datasheet.
> >
> > There isn't a separate soundchip - the sound is a second PCI function
> > within the video capture chip (BT878). The datasheet for that certainly
> > used to be freely available (I have a copy downloaded years ago). It
> > looks to be sufficient to write a driver - the DMA engine etc. are
> > identical to the one in the video section, and there is a fair amount of
> > documentation of the audio section.
>
> Is every BT878 card able to send the sound via the pci bus? I always wondered
> what the multimedia device at 6.1 is.
>
> bktr0: <BrookTree 878> mem 0xca000000-0xca000fff irq 16 at device 6.0 on pci5
> bktr0: [GIANT-LOCKED]
> bktr0: Hauppauge Model 61324 D229
> bktr0: Detected a MSP3415D-A2 at 0x80
> bktr0: Hauppauge WinCast/TV, Philips PAL I tuner, msp3400c stereo, remote
> control.
> pci5: <multimedia> at device 6.1 (no driver attached)
Assuming that the manufacturer of the card hooks it up properly, yes..
I'm in the process of writing a driver for this function for ATSC HDTV
capture... and I plan on doing a very non-unix thing in only doing the
minimal amount of work in the kernel, and leaving the rest of the
config to userland utilities...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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