Linux driver for c-media cm8x38 ver 4.12 released

Linux driver for c-media cm8x38 ver 4.12 released

[cmedia]

Hi all,

For those who has C-Media 8338/8738-based sound card or as on-board
sound chip and need to work with Linux or BeOS, please download the beta
driver at http://members.home.net/puresoft/cmedia.html. The Linux driver
can work with kernel 2.2 and 2.4.

For questions, please e-mail to support@cmedia.com.tw, thanks a lot !

Sincerely,
ChenLi Tien

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Re: Linux driver for c-media cm8x38 ver 4.12 released

[Peter Samuelson]

[ChenLi Tien, from http://members.home.net/puresoft/cmedia.html]
> - *      Copyright (C) 1999  ChenLi Tien (cltien@home.com)
> - *
> - *	Based on the PCI drivers by Thomas Sailer (sailer@ife.ee.ethz.ch)
> + *      Copyright (C) 1999  ChenLi Tien (cltien@cmedia.com.tw)
> + *      		    C-media support (support@cmedia.com.tw)

This is somewhat impolite -- unless the driver is *not* actually based
on Tom's work.

> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
> +	owner:		THIS_MODULE,
> +#endif
>  	llseek:		cm_llseek,
>  	ioctl:		cm_ioctl_mixdev,
>  	open:		cm_open_mixdev,
>  	release:	cm_release_mixdev,
> +#else
> +	&cm_llseek,
> +	NULL,  /* read */
> +	NULL,  /* write */
> +	NULL,  /* readdir */
> +	NULL,  /* poll */
> +	&cm_ioctl_mixdev,
> +	NULL,  /* mmap */
> +	&cm_open_mixdev,
> +	NULL,	/* flush */
> +	&cm_release_mixdev,
> +	NULL,  /* fsync */
> +	NULL,  /* fasync */
> +	NULL,  /* check_media_change */
> +	NULL,  /* revalidate */
> +	NULL,  /* lock */
> +#endif

I don't think the (2,3,0) ifdef is necessary.  Just use the labeled
initializers for all kernels.  See also cm_audio_fops, cm_dsp_fops,
cm_midi_fops, cm_dmfm_fops.

> +#ifdef MODULE
> +MODULE_PARM(mpu_io, "i");
> +MODULE_PARM(fm_io, "i");
> +MODULE_PARM(spdif_inverse, "i");
> +MODULE_PARM(spdif_loop, "i");
> +MODULE_PARM(four_sp, "i");
> +MODULE_PARM(rear_out, "i");
> +MODULE_PARM(modem, "i");
> +MODULE_PARM(joystick, "i");
>  #endif

No need for '#ifdef MODULE'.

> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
> +static int __init init_cmpci(void)
> +#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
> +#ifdef MODULE
> +int __init init_module(void)
> +#else
>  int __init init_cmpci(void)
>  #endif
> +#else
> +#ifdef MODULE
> +__initfunc(int init_module(void))
> +#else
> +__initfunc(int init_cmpci(void))
> +#endif
> +#endif

__init is fine in 2.2, no need for conditional __initfunc().

Peter
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Re: Linux driver for c-media cm8x38 ver 4.12 released

[cmedia]

Peter Samuelson wrote:

> [ChenLi Tien, from http://members.home.net/puresoft/cmedia.html]
> > - *      Copyright (C) 1999  ChenLi Tien (cltien@home.com)
> > - *
> > - *   Based on the PCI drivers by Thomas Sailer (sailer@ife.ee.ethz.ch)
> > + *      Copyright (C) 1999  ChenLi Tien (cltien@cmedia.com.tw)
> > + *                       C-media support (support@cmedia.com.tw)
>
> This is somewhat impolite -- unless the driver is *not* actually based
> on Tom's work.
>

I didn't notice someone add this line, but I will be happy to add it.

>
> > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
> > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
> > +     owner:          THIS_MODULE,
> > +#endif
> >       llseek:         cm_llseek,
> >       ioctl:          cm_ioctl_mixdev,
> >       open:           cm_open_mixdev,
> >       release:        cm_release_mixdev,
> > +#else
> > +     &cm_llseek,
> > +     NULL,  /* read */
> > +     NULL,  /* write */
> > +     NULL,  /* readdir */
> > +     NULL,  /* poll */
> > +     &cm_ioctl_mixdev,
> > +     NULL,  /* mmap */
> > +     &cm_open_mixdev,
> > +     NULL,   /* flush */
> > +     &cm_release_mixdev,
> > +     NULL,  /* fsync */
> > +     NULL,  /* fasync */
> > +     NULL,  /* check_media_change */
> > +     NULL,  /* revalidate */
> > +     NULL,  /* lock */
> > +#endif
>
> I don't think the (2,3,0) ifdef is necessary.  Just use the labeled
> initializers for all kernels.  See also cm_audio_fops, cm_dsp_fops,
> cm_midi_fops, cm_dmfm_fops.

Yes, as 2.3.x series is not for end-user, I can remove them. I keep it for
easy to tell what's different for kernel 2.3 and 2.4.

>
>
> > +#ifdef MODULE
> > +MODULE_PARM(mpu_io, "i");
> > +MODULE_PARM(fm_io, "i");
> > +MODULE_PARM(spdif_inverse, "i");
> > +MODULE_PARM(spdif_loop, "i");
> > +MODULE_PARM(four_sp, "i");
> > +MODULE_PARM(rear_out, "i");
> > +MODULE_PARM(modem, "i");
> > +MODULE_PARM(joystick, "i");
> >  #endif
>
> No need for '#ifdef MODULE'.

I will remove it if kernel 2.2 can work.

>
>
> > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
> > +static int __init init_cmpci(void)
> > +#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
> > +#ifdef MODULE
> > +int __init init_module(void)
> > +#else
> >  int __init init_cmpci(void)
> >  #endif
> > +#else
> > +#ifdef MODULE
> > +__initfunc(int init_module(void))
> > +#else
> > +__initfunc(int init_cmpci(void))
> > +#endif
> > +#endif
>
> __init is fine in 2.2, no need for conditional __initfunc().
>
> Peter

Thanks for your suggestion, I can change it.

ChenLi Tien

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Re: Linux driver for c-media cm8x38 ver 4.12 released

[Peter Samuelson]

[ChenLi Tien]
> > I don't think the (2,3,0) ifdef is necessary.  Just use the labeled
> > initializers for all kernels.  See also cm_audio_fops, cm_dsp_fops,
> > cm_midi_fops, cm_dmfm_fops.
> 
> Yes, as 2.3.x series is not for end-user, I can remove them. I keep it for
> easy to tell what's different for kernel 2.3 and 2.4.

What I meant was, the code which you have '#if version >= 2.3.0' is
also valid for 2.2.  You should not have any conditional code there
except the 'owner:' member, which is '#if version >= 2.4.0'.

> > No need for '#ifdef MODULE'.
> 
> I will remove it if kernel 2.2 can work.

It can.  I checked 2.2.0.

Peter
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Re: Linux driver for c-media cm8x38 ver 4.12 released

[cmedia]

Hi,

I change it so a release 4.14 posted at
http://members.home.net/puresoft/cmedia.html. This version has no functional
change.

Sincerely,
ChenLi Tien

Peter Samuelson wrote:

> [ChenLi Tien]
> > > I don't think the (2,3,0) ifdef is necessary.  Just use the labeled
> > > initializers for all kernels.  See also cm_audio_fops, cm_dsp_fops,
> > > cm_midi_fops, cm_dmfm_fops.
> >
> > Yes, as 2.3.x series is not for end-user, I can remove them. I keep it for
> > easy to tell what's different for kernel 2.3 and 2.4.
>
> What I meant was, the code which you have '#if version >= 2.3.0' is
> also valid for 2.2.  You should not have any conditional code there
> except the 'owner:' member, which is '#if version >= 2.4.0'.
>
> > > No need for '#ifdef MODULE'.
> >
> > I will remove it if kernel 2.2 can work.
>
> It can.  I checked 2.2.0.
>
> Peter

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