Anyone have Gadget Labs Wave/4? (patch)

Anyone have Gadget Labs Wave/4? (patch)

[Mark Rages]

I would like someone with a Gadget Labs Wave/4 to try out my driver and
report any problems (and fixes!)

This is a VERY ROUGH version of the driver. Only playback is supported.

RECORDING is not supported... let's get playback solid first. 
MIDI is not supported... There's just a 16550 on the board. Has the code 
for this been written already?

In particular there are a couple things I've been trying to pin down:

1 - The driver only works every second time it's loaded. Some bizarre 
alignment problem? A bug in isapnp code? I don't have the knowledge to say 
for sure.

2 - It's very easy to make an xrun. Latency is hard-wired at 20 msec right 
now.  It's ok with preempt+lockbreak kernel patches. But still hiccups 
sometimes on my system. I want somemone else to try it and report. Maybe I 
have some rogue devices that keep interrupts disabled for a long time?

With those disclaimers, here's the patch (against rc2):
http://rages.net/alsa-driver-0.9.0rc2-wave4.patch.gz 

Regards,
Mark


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Re: Anyone have Gadget Labs Wave/4? (patch)

[Takashi Iwai]

Hi,

At Tue, 20 Aug 2002 12:51:55 -0500,
Mark Rages wrote:
> 
> I would like someone with a Gadget Labs Wave/4 to try out my driver and
> report any problems (and fixes!)

it's not any bug/working reports (sorry!), but i'd like to ask a bit.
the code includes the firmware and declares that

**
**                 GADGET LABS LLC PROPRIETARY INFORMATION
**
** This software is supplied under the terms of a license agreement or
** nondisclosure agreement with Gadget Labs LLC and may not be copied or
** disclosed except in accordance with the terms of that agreement.
**
**         Copyright (C) 1997 Gadget Labs LLC.  All Rights Reserved.
**


i feel it's somehow odd to be included in the standard kernel.
supplied under NDA..?


> 
> This is a VERY ROUGH version of the driver. Only playback is supported.
> 
> RECORDING is not supported... let's get playback solid first. 
> MIDI is not supported... There's just a 16550 on the board. Has the code 
> for this been written already?

there is a generic serial-u16550 driver.
perhaps you can load the driver additionally (with proper
parameters).  is it a pnp device?


> In particular there are a couple things I've been trying to pin down:
> 
> 1 - The driver only works every second time it's loaded. Some bizarre 
> alignment problem? A bug in isapnp code? I don't have the knowledge to say 
> for sure.
 
do you mean, the driver is not loaded, or not work even though it's
loaded?


Takashi


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Re: Anyone have Gadget Labs Wave/4? (patch)

[Mark Rages]

On Thu, Aug 22, 2002 at 03:15:17PM +0200, Takashi Iwai wrote:
> Hi,
> 
> At Tue, 20 Aug 2002 12:51:55 -0500,
> Mark Rages wrote:
> > 
> > I would like someone with a Gadget Labs Wave/4 to try out my driver and
> > report any problems (and fixes!)
> 
> it's not any bug/working reports (sorry!), but i'd like to ask a bit.
> the code includes the firmware and declares that
> 
> **
> **                 GADGET LABS LLC PROPRIETARY INFORMATION
> **
> ** This software is supplied under the terms of a license agreement or
> ** nondisclosure agreement with Gadget Labs LLC and may not be copied or
> ** disclosed except in accordance with the terms of that agreement.
> **
> **         Copyright (C) 1997 Gadget Labs LLC.  All Rights Reserved.
> **
> 
> 
> i feel it's somehow odd to be included in the standard kernel.
> supplied under NDA..?

Well, Gadget Labs is out of business. I talked to one of the former owners
to get permission to redistribute. He told me "Gadget Labs is no more" and
basically no one would be enforcing copyright.  I'm no lawyer, but that
seems kinda murky, legally.  Would it be better to rip the firmware code
from the Windows driver binary (which I've already did to check I had the
right version)?  They released the Windows drivers into public domain when
the company dissolved.

> > MIDI is not supported... There's just a 16550 on the board. Has the code 
> > for this been written already?
> 
> there is a generic serial-u16550 driver.
> perhaps you can load the driver additionally (with proper
> parameters).  is it a pnp device?
> 

It's ISA-PNP. I already have the I/O location of the UART (It's used to 
program the firmware) and a place in the ISR that tells me the UART is 
interrupted. 

> 
> > In particular there are a couple things I've been trying to pin down:
> > 
> > 1 - The driver only works every second time it's loaded. Some bizarre 
> > alignment problem? A bug in isapnp code? I don't have the knowledge to say 
> > for sure.
>  
> do you mean, the driver is not loaded, or not work even though it's
> loaded?
> 

It works, but the interrupts come back slowly. The pointer isn't updated.  
No sound comes out. rmmod and insmod again and it works. It always works
on the first load from a clean boot.  I haven't worried about it much... I
was hoping someone else would have one of these and could help me
troubleshoot.

> 
> Takashi
> 

Thanks for your help.

Regards,
Mark


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Re: Anyone have Gadget Labs Wave/4? (patch)

[Takashi Iwai]

At Thu, 22 Aug 2002 11:23:52 -0500,
Mark Rages wrote:
> 
> On Thu, Aug 22, 2002 at 03:15:17PM +0200, Takashi Iwai wrote:
> > Hi,
> > 
> > At Tue, 20 Aug 2002 12:51:55 -0500,
> > Mark Rages wrote:
> > > 
> > > I would like someone with a Gadget Labs Wave/4 to try out my driver and
> > > report any problems (and fixes!)
> > 
> > it's not any bug/working reports (sorry!), but i'd like to ask a bit.
> > the code includes the firmware and declares that
> > 
> > **
> > **                 GADGET LABS LLC PROPRIETARY INFORMATION
> > **
> > ** This software is supplied under the terms of a license agreement or
> > ** nondisclosure agreement with Gadget Labs LLC and may not be copied or
> > ** disclosed except in accordance with the terms of that agreement.
> > **
> > **         Copyright (C) 1997 Gadget Labs LLC.  All Rights Reserved.
> > **
> > 
> > 
> > i feel it's somehow odd to be included in the standard kernel.
> > supplied under NDA..?
> 
> Well, Gadget Labs is out of business. I talked to one of the former owners
> to get permission to redistribute. He told me "Gadget Labs is no more" and
> basically no one would be enforcing copyright.  I'm no lawyer, but that
> seems kinda murky, legally.  Would it be better to rip the firmware code
> from the Windows driver binary (which I've already did to check I had the
> right version)?  They released the Windows drivers into public domain when
> the company dissolved.

if it's a public domain, then we may remove the sentense about license
agreement above.
if the legal issue is not clear, it's better to keep it out of the
official tree...  i'm no lawyer, too :)


> 
> > > MIDI is not supported... There's just a 16550 on the board. Has the code 
> > > for this been written already?
> > 
> > there is a generic serial-u16550 driver.
> > perhaps you can load the driver additionally (with proper
> > parameters).  is it a pnp device?
> > 
> 
> It's ISA-PNP. I already have the I/O location of the UART (It's used to 
> program the firmware) and a place in the ISR that tells me the UART is 
> interrupted. 

then the existing driver might run.

> > 
> > > In particular there are a couple things I've been trying to pin down:
> > > 
> > > 1 - The driver only works every second time it's loaded. Some bizarre 
> > > alignment problem? A bug in isapnp code? I don't have the knowledge to say 
> > > for sure.
> >  
> > do you mean, the driver is not loaded, or not work even though it's
> > loaded?
> > 
> 
> It works, but the interrupts come back slowly. The pointer isn't updated.  

then perhaps not related with the isa pnp things.
most likely missing initializations.

> No sound comes out. rmmod and insmod again and it works. It always works
> on the first load from a clean boot.  I haven't worried about it much... I
> was hoping someone else would have one of these and could help me
> troubleshoot.


Takashi


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