linux/sound/core/misc.c
Takashi Iwai d9ea472c74 [ALSA] Add PCI quirk list helper function
Added a helper function snd_pci_quirk_lookup()
to look up PCI SSID quirk list.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:01:48 +01:00

108 lines
2.8 KiB
C

/*
* Misc and compatibility things
* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/ioport.h>
#include <sound/core.h>
void release_and_free_resource(struct resource *res)
{
if (res) {
release_resource(res);
kfree(res);
}
}
EXPORT_SYMBOL(release_and_free_resource);
#ifdef CONFIG_SND_VERBOSE_PRINTK
void snd_verbose_printk(const char *file, int line, const char *format, ...)
{
va_list args;
if (format[0] == '<' && format[1] >= '0' && format[1] <= '9' && format[2] == '>') {
char tmp[] = "<0>";
tmp[1] = format[1];
printk("%sALSA %s:%d: ", tmp, file, line);
format += 3;
} else {
printk("ALSA %s:%d: ", file, line);
}
va_start(args, format);
vprintk(format, args);
va_end(args);
}
EXPORT_SYMBOL(snd_verbose_printk);
#endif
#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
void snd_verbose_printd(const char *file, int line, const char *format, ...)
{
va_list args;
if (format[0] == '<' && format[1] >= '0' && format[1] <= '9' && format[2] == '>') {
char tmp[] = "<0>";
tmp[1] = format[1];
printk("%sALSA %s:%d: ", tmp, file, line);
format += 3;
} else {
printk(KERN_DEBUG "ALSA %s:%d: ", file, line);
}
va_start(args, format);
vprintk(format, args);
va_end(args);
}
EXPORT_SYMBOL(snd_verbose_printd);
#endif
#ifdef CONFIG_PCI
#include <linux/pci.h>
/**
* snd_pci_quirk_lookup - look up a PCI SSID quirk list
* @pci: pci_dev handle
* @list: quirk list, terminated by a null entry
*
* Look through the given quirk list and finds a matching entry
* with the same PCI SSID. When subdevice is 0, all subdevice
* values may match.
*
* Returns the matched entry pointer, or NULL if nothing matched.
*/
const struct snd_pci_quirk *
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))
return q;
return NULL;
}
EXPORT_SYMBOL(snd_pci_quirk_lookup);
#endif