Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Misc and compatibility things | |
c1017a4c | 3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
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 | ||
1da177e4 | 22 | #include <linux/init.h> |
d81a6d71 | 23 | #include <linux/export.h> |
31623caa | 24 | #include <linux/moduleparam.h> |
1da177e4 | 25 | #include <linux/time.h> |
5a0e3ad6 | 26 | #include <linux/slab.h> |
b1d5776d | 27 | #include <linux/ioport.h> |
1da177e4 LT |
28 | #include <sound/core.h> |
29 | ||
36ce99c1 TI |
30 | #ifdef CONFIG_SND_DEBUG |
31 | ||
32 | #ifdef CONFIG_SND_DEBUG_VERBOSE | |
33 | #define DEFAULT_DEBUG_LEVEL 2 | |
34 | #else | |
35 | #define DEFAULT_DEBUG_LEVEL 1 | |
36 | #endif | |
37 | ||
38 | static int debug = DEFAULT_DEBUG_LEVEL; | |
39 | module_param(debug, int, 0644); | |
40 | MODULE_PARM_DESC(debug, "Debug level (0 = disable)"); | |
41 | ||
42 | #endif /* CONFIG_SND_DEBUG */ | |
43 | ||
b1d5776d TI |
44 | void release_and_free_resource(struct resource *res) |
45 | { | |
46 | if (res) { | |
47 | release_resource(res); | |
e38e0cfa | 48 | kfree(res); |
b1d5776d TI |
49 | } |
50 | } | |
51 | ||
c0d3fb39 TI |
52 | EXPORT_SYMBOL(release_and_free_resource); |
53 | ||
1da177e4 | 54 | #ifdef CONFIG_SND_VERBOSE_PRINTK |
36ce99c1 | 55 | /* strip the leading path if the given path is absolute */ |
1b0053a0 | 56 | static const char *sanity_file_name(const char *path) |
1da177e4 | 57 | { |
1b0053a0 TI |
58 | if (*path == '/') |
59 | return strrchr(path, '/') + 1; | |
60 | else | |
61 | return path; | |
62 | } | |
1da177e4 LT |
63 | #endif |
64 | ||
36ce99c1 TI |
65 | #if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) |
66 | void __snd_printk(unsigned int level, const char *path, int line, | |
67 | const char *format, ...) | |
1da177e4 LT |
68 | { |
69 | va_list args; | |
890ee02a | 70 | #ifdef CONFIG_SND_VERBOSE_PRINTK |
b778b3f2 | 71 | int kern_level; |
890ee02a TI |
72 | struct va_format vaf; |
73 | char verbose_fmt[] = KERN_DEFAULT "ALSA %s:%d %pV"; | |
74 | #endif | |
75 | ||
7913a499 | 76 | #ifdef CONFIG_SND_DEBUG |
36ce99c1 TI |
77 | if (debug < level) |
78 | return; | |
79 | #endif | |
890ee02a | 80 | |
1da177e4 | 81 | va_start(args, format); |
890ee02a TI |
82 | #ifdef CONFIG_SND_VERBOSE_PRINTK |
83 | vaf.fmt = format; | |
84 | vaf.va = &args; | |
b778b3f2 JP |
85 | |
86 | kern_level = printk_get_level(format); | |
87 | if (kern_level) { | |
88 | const char *end_of_header = printk_skip_level(format); | |
89 | memcpy(verbose_fmt, format, end_of_header - format); | |
90 | vaf.fmt = end_of_header; | |
890ee02a | 91 | } else if (level) |
b778b3f2 | 92 | memcpy(verbose_fmt, KERN_DEBUG, sizeof(KERN_DEBUG) - 1); |
890ee02a | 93 | printk(verbose_fmt, sanity_file_name(path), line, &vaf); |
b778b3f2 | 94 | |
890ee02a | 95 | #else |
1da177e4 | 96 | vprintk(format, args); |
890ee02a | 97 | #endif |
1da177e4 | 98 | va_end(args); |
1da177e4 | 99 | } |
36ce99c1 | 100 | EXPORT_SYMBOL_GPL(__snd_printk); |
1da177e4 | 101 | #endif |
d9ea472c TI |
102 | |
103 | #ifdef CONFIG_PCI | |
104 | #include <linux/pci.h> | |
105 | /** | |
d1458279 TI |
106 | * snd_pci_quirk_lookup_id - look up a PCI SSID quirk list |
107 | * @vendor: PCI SSV id | |
108 | * @device: PCI SSD id | |
d9ea472c TI |
109 | * @list: quirk list, terminated by a null entry |
110 | * | |
111 | * Look through the given quirk list and finds a matching entry | |
112 | * with the same PCI SSID. When subdevice is 0, all subdevice | |
113 | * values may match. | |
114 | * | |
115 | * Returns the matched entry pointer, or NULL if nothing matched. | |
116 | */ | |
117 | const struct snd_pci_quirk * | |
d1458279 TI |
118 | snd_pci_quirk_lookup_id(u16 vendor, u16 device, |
119 | const struct snd_pci_quirk *list) | |
d9ea472c TI |
120 | { |
121 | const struct snd_pci_quirk *q; | |
122 | ||
8bd4bb7a | 123 | for (q = list; q->subvendor; q++) { |
d1458279 | 124 | if (q->subvendor != vendor) |
8bd4bb7a TI |
125 | continue; |
126 | if (!q->subdevice || | |
d1458279 | 127 | (device & q->subdevice_mask) == q->subdevice) |
d9ea472c | 128 | return q; |
8bd4bb7a | 129 | } |
d9ea472c TI |
130 | return NULL; |
131 | } | |
d1458279 TI |
132 | EXPORT_SYMBOL(snd_pci_quirk_lookup_id); |
133 | ||
134 | /** | |
135 | * snd_pci_quirk_lookup - look up a PCI SSID quirk list | |
136 | * @pci: pci_dev handle | |
137 | * @list: quirk list, terminated by a null entry | |
138 | * | |
139 | * Look through the given quirk list and finds a matching entry | |
140 | * with the same PCI SSID. When subdevice is 0, all subdevice | |
141 | * values may match. | |
142 | * | |
143 | * Returns the matched entry pointer, or NULL if nothing matched. | |
144 | */ | |
145 | const struct snd_pci_quirk * | |
146 | snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list) | |
147 | { | |
148 | return snd_pci_quirk_lookup_id(pci->subsystem_vendor, | |
149 | pci->subsystem_device, | |
150 | list); | |
151 | } | |
d9ea472c TI |
152 | EXPORT_SYMBOL(snd_pci_quirk_lookup); |
153 | #endif |