Date: Mon, 22 Nov 2004 11:46:48 -0500 (EST) From: Paul Sandys <myj@nyct.net> To: John-Mark Gurney <gurney_j@resnet.uoregon.edu> Cc: freebsd-stable@freebsd.org Subject: Re: SIIG cards and puc Message-ID: <20041122113525.G31812@bsd3.nyct.net> In-Reply-To: <20041120084456.GU57546@funkthat.com> References: <20041114231939.Y71461@bsd3.nyct.net> <20041120084456.GU57546@funkthat.com>
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The SIIG card I have does use shared interrupt for both ports, so I don't see
any other way around it.
The 0x40000001 is a regular flag that's used by sio.c . I found an undocumented
feature in there, that allows you to set a FIFO size, so I used it in
combination with the shared irq flag.
from sio.c:
#define COM_ISMULTIPORT(flags) ((flags) & 0x01)
#define COM_FIFOSIZE(flags) (((flags) & 0xff000000) >> 24)
Here's the diff:
*** pucdata.c.orig Mon Nov 22 11:40:30 2004
--- pucdata.c Mon Nov 22 11:41:02 2004
***************
*** 539,546 ****
{ 0x131f, 0x2031, 0, 0 },
{ 0xffff, 0xffff, 0, 0 },
{
! { PUC_PORT_TYPE_COM, 0x10, 0x00, COM_FREQ },
! { PUC_PORT_TYPE_COM, 0x14, 0x00, COM_FREQ },
},
},
--- 539,546 ----
{ 0x131f, 0x2031, 0, 0 },
{ 0xffff, 0xffff, 0, 0 },
{
! { PUC_PORT_TYPE_COM, 0x10, 0x00, COM_FREQ, 0x40000001 },
! { PUC_PORT_TYPE_COM, 0x14, 0x00, COM_FREQ, 0x40000001 },
},
},
On Sat, 20 Nov 2004, John-Mark Gurney wrote:
> Date: Sat, 20 Nov 2004 00:44:56 -0800
> From: John-Mark Gurney <gurney_j@resnet.uoregon.edu>
> To: Paul Sandys <myj@nyct.net>
> Cc: freebsd-stable@freebsd.org
> Subject: Re: SIIG cards and puc
>
> Paul Sandys wrote this message on Sun, Nov 14, 2004 at 23:25 -0500:
> > I've tried to get one of the 20x family 16C650 64-byte buffer SIIG cards to
> > work. It does not work out of the box.
> >
> > I had to add 0x40000001 into the flags in pucdata.c for my card and "options
>
> where does this magic value come from? Could you express it in defines
> in the code? i.e. PUC_FLAGS_MEMORY
>
> > COM_MULTIPORT" into the kernel config. It's still limited to 115200 baud, but
> > all I was interested is 9600 anyway.
>
> COM_MULTIPORT will not be default due to the impact of having to test
> every sio port on any sio interrupt...
>
> > Can this be implemented into the source tree ?
>
> A patch is helpful.
>
> --
> 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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