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ALSA: Add subdevice_mask field to quirk entries

Browse source 
Introduced a new field, subdevice_mask, which specifies the bitmask
to match with the given subdevice ID.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2009-01-30 17:27:45 +01:00
parent 18e352e4a7
commit 8bd4bb7a35
2 changed files with 20 additions and 6 deletions
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16
include/sound/core.h
View file

@ -446,21 +446,33 @@ static inline int __snd_bug_on(int cond)
struct snd_pci_quirk {
unsigned short subvendor; /* PCI subvendor ID */
unsigned short subdevice; /* PCI subdevice ID */
unsigned short subdevice_mask; /* bitmask to match */
int value; /* value */
#ifdef CONFIG_SND_DEBUG_VERBOSE
const char *name; /* name of the device (optional) */
#endif
};
#define _SND_PCI_QUIRK_ID(vend,dev) \
.subvendor = (vend), .subdevice = (dev)
#define _SND_PCI_QUIRK_ID_MASK(vend, mask, dev) \
.subvendor = (vend), .subdevice = (dev), .subdevice_mask = (mask)
#define _SND_PCI_QUIRK_ID(vend, dev) \
_SND_PCI_QUIRK_ID_MASK(vend, 0xffff, dev)
#define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)}
#ifdef CONFIG_SND_DEBUG_VERBOSE
#define SND_PCI_QUIRK(vend,dev,xname,val) \
{_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)}
#define SND_PCI_QUIRK_VENDOR(vend, xname, val) \
{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val), .name = (xname)}
#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val) \
{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), \
.value = (val), .name = (xname)}
#else
#define SND_PCI_QUIRK(vend,dev,xname,val) \
{_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val) \
{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), .value = (val)}
#define SND_PCI_QUIRK_VENDOR(vend, xname, val) \
{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val)}
#endif
const struct snd_pci_quirk *

10
sound/core/misc.c
View file

@ -95,12 +95,14 @@ snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
{
const struct snd_pci_quirk *q;
for (q = list; q->subvendor; q++)
if (q->subvendor == pci->subsystem_vendor &&
(!q->subdevice || q->subdevice == pci->subsystem_device))
for (q = list; q->subvendor; q++) {
if (q->subvendor != pci->subsystem_vendor)
continue;
if (!q->subdevice ||
(pci->subsystem_device & q->subdevice_mask) == q->subdevice)
return q;
}
return NULL;
}
EXPORT_SYMBOL(snd_pci_quirk_lookup);
#endif