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[PATCH] MSI-K8T-Neo2-Fir OnboardSound and additional Soundcard

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On the MSI-K8T-NEO2 FIR ( Athlon-64, Socket 939 with VIA-K8T800- Chipset
and onboard Sound,...  ) the BIOS lets you choose "DISABLED" or "AUTO" for
the On-Board Sound Device.

If you add another PCI-Sound-Card the BIOS disables the on-board device.

So far I have a Quirk, that does set the correspondent BIT in the
PCI-registers to enable the soundcard.

But how to ensure that the code is executed ONLY on excactly this kind of
boards (not any other with similar Chipset)?

Cc: Jaroslav Kysela <perex@suse.cz>
Acked-by: Takashi Iwai <tiwai@suse.de>
Cc: Lee Revell <rlrevell@joe-job.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Johannes Goecke 2006-04-20 02:43:17 -07:00 committed by Linus Torvalds
parent 68876baf5e
commit 7daa0c4f51
1 changed files with 29 additions and 0 deletions
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29
drivers/pci/quirks.c
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@ -864,6 +864,35 @@ static void __init quirk_eisa_bridge(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge );
/*
* On the MSI-K8T-Neo2Fir Board, the internal Soundcard is disabled
* when a PCI-Soundcard is added. The BIOS only gives Options
* "Disabled" and "AUTO". This Quirk Sets the corresponding
* Register-Value to enable the Soundcard.
*/
static void __init k8t_sound_hostbridge(struct pci_dev *dev)
{
unsigned char val;
printk(KERN_INFO "PCI: Quirk-MSI-K8T Soundcard On\n");
pci_read_config_byte(dev, 0x50, &val);
if (val == 0x88 || val == 0xc8) {
pci_write_config_byte(dev, 0x50, val & (~0x40));
/* Verify the Change for Status output */
pci_read_config_byte(dev, 0x50, &val);
if (val & 0x40)
printk(KERN_INFO "PCI: MSI-K8T soundcard still off\n");
else
printk(KERN_INFO "PCI: MSI-K8T soundcard on\n");
} else {
printk(KERN_INFO "PCI: Unexpected Value in PCI-Register: "
"no Change!\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
/*
* On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
* is not activated. The myth is that Asus said that they do not want the