xref: /linux/sound/core/misc.c (revision 8fa5723aa7e053d498336b48448b292fc2e0458b)
1 /*
2  *  Misc and compatibility things
3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4  *
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 
22 #include <linux/init.h>
23 #include <linux/time.h>
24 #include <linux/ioport.h>
25 #include <sound/core.h>
26 
27 void release_and_free_resource(struct resource *res)
28 {
29 	if (res) {
30 		release_resource(res);
31 		kfree(res);
32 	}
33 }
34 
35 EXPORT_SYMBOL(release_and_free_resource);
36 
37 #ifdef CONFIG_SND_VERBOSE_PRINTK
38 void snd_verbose_printk(const char *file, int line, const char *format, ...)
39 {
40 	va_list args;
41 
42 	if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') {
43 		char tmp[] = "<0>";
44 		tmp[1] = format[1];
45 		printk("%sALSA %s:%d: ", tmp, file, line);
46 		format += 3;
47 	} else {
48 		printk("ALSA %s:%d: ", file, line);
49 	}
50 	va_start(args, format);
51 	vprintk(format, args);
52 	va_end(args);
53 }
54 
55 EXPORT_SYMBOL(snd_verbose_printk);
56 #endif
57 
58 #if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
59 void snd_verbose_printd(const char *file, int line, const char *format, ...)
60 {
61 	va_list args;
62 
63 	if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') {
64 		char tmp[] = "<0>";
65 		tmp[1] = format[1];
66 		printk("%sALSA %s:%d: ", tmp, file, line);
67 		format += 3;
68 	} else {
69 		printk(KERN_DEBUG "ALSA %s:%d: ", file, line);
70 	}
71 	va_start(args, format);
72 	vprintk(format, args);
73 	va_end(args);
74 
75 }
76 
77 EXPORT_SYMBOL(snd_verbose_printd);
78 #endif
79 
80 #ifdef CONFIG_PCI
81 #include <linux/pci.h>
82 /**
83  * snd_pci_quirk_lookup - look up a PCI SSID quirk list
84  * @pci: pci_dev handle
85  * @list: quirk list, terminated by a null entry
86  *
87  * Look through the given quirk list and finds a matching entry
88  * with the same PCI SSID.  When subdevice is 0, all subdevice
89  * values may match.
90  *
91  * Returns the matched entry pointer, or NULL if nothing matched.
92  */
93 const struct snd_pci_quirk *
94 snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
95 {
96 	const struct snd_pci_quirk *q;
97 
98 	for (q = list; q->subvendor; q++)
99 		if (q->subvendor == pci->subsystem_vendor &&
100 		    (!q->subdevice || q->subdevice == pci->subsystem_device))
101 			return q;
102 	return NULL;
103 }
104 
105 EXPORT_SYMBOL(snd_pci_quirk_lookup);
106 #endif
107