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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 | } | |
c0d3fb39 TI |
51 | EXPORT_SYMBOL(release_and_free_resource); |
52 | ||
1da177e4 | 53 | #ifdef CONFIG_SND_VERBOSE_PRINTK |
36ce99c1 | 54 | /* strip the leading path if the given path is absolute */ |
1b0053a0 | 55 | static const char *sanity_file_name(const char *path) |
1da177e4 | 56 | { |
1b0053a0 TI |
57 | if (*path == '/') |
58 | return strrchr(path, '/') + 1; | |
59 | else | |
60 | return path; | |
61 | } | |
1da177e4 LT |
62 | #endif |
63 | ||
36ce99c1 TI |
64 | #if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) |
65 | void __snd_printk(unsigned int level, const char *path, int line, | |
66 | const char *format, ...) | |
1da177e4 LT |
67 | { |
68 | va_list args; | |
890ee02a | 69 | #ifdef CONFIG_SND_VERBOSE_PRINTK |
b778b3f2 | 70 | int kern_level; |
890ee02a TI |
71 | struct va_format vaf; |
72 | char verbose_fmt[] = KERN_DEFAULT "ALSA %s:%d %pV"; | |
0a4824bf | 73 | bool level_found = false; |
890ee02a TI |
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 | 85 | |
0a4824bf PM |
86 | while ((kern_level = printk_get_level(vaf.fmt)) != 0) { |
87 | const char *end_of_header = printk_skip_level(vaf.fmt); | |
88 | ||
89 | /* Ignore KERN_CONT. We print filename:line for each piece. */ | |
90 | if (kern_level >= '0' && kern_level <= '7') { | |
91 | memcpy(verbose_fmt, vaf.fmt, end_of_header - vaf.fmt); | |
92 | level_found = true; | |
93 | } | |
94 | ||
b778b3f2 | 95 | vaf.fmt = end_of_header; |
0a4824bf PM |
96 | } |
97 | ||
98 | if (!level_found && level) | |
b778b3f2 | 99 | memcpy(verbose_fmt, KERN_DEBUG, sizeof(KERN_DEBUG) - 1); |
b778b3f2 | 100 | |
0a4824bf | 101 | printk(verbose_fmt, sanity_file_name(path), line, &vaf); |
890ee02a | 102 | #else |
1da177e4 | 103 | vprintk(format, args); |
890ee02a | 104 | #endif |
1da177e4 | 105 | va_end(args); |
1da177e4 | 106 | } |
36ce99c1 | 107 | EXPORT_SYMBOL_GPL(__snd_printk); |
1da177e4 | 108 | #endif |
d9ea472c TI |
109 | |
110 | #ifdef CONFIG_PCI | |
111 | #include <linux/pci.h> | |
112 | /** | |
d1458279 TI |
113 | * snd_pci_quirk_lookup_id - look up a PCI SSID quirk list |
114 | * @vendor: PCI SSV id | |
115 | * @device: PCI SSD id | |
d9ea472c TI |
116 | * @list: quirk list, terminated by a null entry |
117 | * | |
118 | * Look through the given quirk list and finds a matching entry | |
119 | * with the same PCI SSID. When subdevice is 0, all subdevice | |
120 | * values may match. | |
121 | * | |
122 | * Returns the matched entry pointer, or NULL if nothing matched. | |
123 | */ | |
124 | const struct snd_pci_quirk * | |
d1458279 TI |
125 | snd_pci_quirk_lookup_id(u16 vendor, u16 device, |
126 | const struct snd_pci_quirk *list) | |
d9ea472c TI |
127 | { |
128 | const struct snd_pci_quirk *q; | |
129 | ||
8bd4bb7a | 130 | for (q = list; q->subvendor; q++) { |
d1458279 | 131 | if (q->subvendor != vendor) |
8bd4bb7a TI |
132 | continue; |
133 | if (!q->subdevice || | |
d1458279 | 134 | (device & q->subdevice_mask) == q->subdevice) |
d9ea472c | 135 | return q; |
8bd4bb7a | 136 | } |
d9ea472c TI |
137 | return NULL; |
138 | } | |
d1458279 TI |
139 | EXPORT_SYMBOL(snd_pci_quirk_lookup_id); |
140 | ||
141 | /** | |
142 | * snd_pci_quirk_lookup - look up a PCI SSID quirk list | |
143 | * @pci: pci_dev handle | |
144 | * @list: quirk list, terminated by a null entry | |
145 | * | |
146 | * Look through the given quirk list and finds a matching entry | |
147 | * with the same PCI SSID. When subdevice is 0, all subdevice | |
148 | * values may match. | |
149 | * | |
150 | * Returns the matched entry pointer, or NULL if nothing matched. | |
151 | */ | |
152 | const struct snd_pci_quirk * | |
153 | snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list) | |
154 | { | |
e5b50ada TI |
155 | if (!pci) |
156 | return NULL; | |
d1458279 TI |
157 | return snd_pci_quirk_lookup_id(pci->subsystem_vendor, |
158 | pci->subsystem_device, | |
159 | list); | |
160 | } | |
d9ea472c TI |
161 | EXPORT_SYMBOL(snd_pci_quirk_lookup); |
162 | #endif |