130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/*
|
|
* Misc and compatibility things
|
|
* Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h>
|
|
#include <linux/time.h>
|
|
#include <linux/ioport.h>
|
|
#include <sound/core.h>
|
|
|
|
#ifdef CONFIG_SND_DEBUG
|
|
|
|
#ifdef CONFIG_SND_DEBUG_VERBOSE
|
|
#define DEFAULT_DEBUG_LEVEL 2
|
|
#else
|
|
#define DEFAULT_DEBUG_LEVEL 1
|
|
#endif
|
|
|
|
static int debug = DEFAULT_DEBUG_LEVEL;
|
|
module_param(debug, int, 0644);
|
|
MODULE_PARM_DESC(debug, "Debug level (0 = disable)");
|
|
|
|
#endif /* CONFIG_SND_DEBUG */
|
|
|
|
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
|
|
/* strip the leading path if the given path is absolute */
|
|
static const char *sanity_file_name(const char *path)
|
|
{
|
|
if (*path == '/')
|
|
return strrchr(path, '/') + 1;
|
|
else
|
|
return path;
|
|
}
|
|
|
|
/* print file and line with a certain printk prefix */
|
|
static int print_snd_pfx(unsigned int level, const char *path, int line,
|
|
const char *format)
|
|
{
|
|
const char *file = sanity_file_name(path);
|
|
char tmp[] = "<0>";
|
|
const char *pfx = level ? KERN_DEBUG : KERN_DEFAULT;
|
|
int ret = 0;
|
|
|
|
if (format[0] == '<' && format[2] == '>') {
|
|
tmp[1] = format[1];
|
|
pfx = tmp;
|
|
ret = 1;
|
|
}
|
|
printk("%sALSA %s:%d: ", pfx, file, line);
|
|
return ret;
|
|
}
|
|
#else
|
|
#define print_snd_pfx(level, path, line, format) 0
|
|
#endif
|
|
|
|
#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK)
|
|
void __snd_printk(unsigned int level, const char *path, int line,
|
|
const char *format, ...)
|
|
{
|
|
va_list args;
|
|
|
|
#ifdef CONFIG_SND_DEBUG
|
|
if (debug < level)
|
|
return;
|
|
#endif
|
|
va_start(args, format);
|
|
if (print_snd_pfx(level, path, line, format))
|
|
format += 3; /* skip the printk level-prefix */
|
|
vprintk(format, args);
|
|
va_end(args);
|
|
}
|
|
EXPORT_SYMBOL_GPL(__snd_printk);
|
|
#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)
|
|
continue;
|
|
if (!q->subdevice ||
|
|
(pci->subsystem_device & q->subdevice_mask) == q->subdevice)
|
|
return q;
|
|
}
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(snd_pci_quirk_lookup);
|
|
#endif
|