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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/slab.h> |
25 | #include <linux/ioport.h> |
26 | #include <sound/core.h> |
27 | |
28 | #ifdef CONFIG_SND_DEBUG |
29 | |
30 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
31 | #define DEFAULT_DEBUG_LEVEL 2 |
32 | #else |
33 | #define DEFAULT_DEBUG_LEVEL 1 |
34 | #endif |
35 | |
36 | static int debug = DEFAULT_DEBUG_LEVEL; |
37 | module_param(debug, int, 0644); |
38 | MODULE_PARM_DESC(debug, "Debug level (0 = disable)"); |
39 | |
40 | #endif /* CONFIG_SND_DEBUG */ |
41 | |
42 | void release_and_free_resource(struct resource *res) |
43 | { |
44 | if (res) { |
45 | release_resource(res); |
46 | kfree(res); |
47 | } |
48 | } |
49 | |
50 | EXPORT_SYMBOL(release_and_free_resource); |
51 | |
52 | #ifdef CONFIG_SND_VERBOSE_PRINTK |
53 | /* strip the leading path if the given path is absolute */ |
54 | static const char *sanity_file_name(const char *path) |
55 | { |
56 | if (*path == '/') |
57 | return strrchr(path, '/') + 1; |
58 | else |
59 | return path; |
60 | } |
61 | |
62 | /* print file and line with a certain printk prefix */ |
63 | static int print_snd_pfx(unsigned int level, const char *path, int line, |
64 | const char *format) |
65 | { |
66 | const char *file = sanity_file_name(path); |
67 | char tmp[] = "<0>"; |
68 | const char *pfx = level ? KERN_DEBUG : KERN_DEFAULT; |
69 | int ret = 0; |
70 | |
71 | if (format[0] == '<' && format[2] == '>') { |
72 | tmp[1] = format[1]; |
73 | pfx = tmp; |
74 | ret = 1; |
75 | } |
76 | printk("%sALSA %s:%d: ", pfx, file, line); |
77 | return ret; |
78 | } |
79 | #else |
80 | #define print_snd_pfx(level, path, line, format) 0 |
81 | #endif |
82 | |
83 | #if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) |
84 | void __snd_printk(unsigned int level, const char *path, int line, |
85 | const char *format, ...) |
86 | { |
87 | va_list args; |
88 | |
89 | #ifdef CONFIG_SND_DEBUG |
90 | if (debug < level) |
91 | return; |
92 | #endif |
93 | va_start(args, format); |
94 | if (print_snd_pfx(level, path, line, format)) |
95 | format += 3; /* skip the printk level-prefix */ |
96 | vprintk(format, args); |
97 | va_end(args); |
98 | } |
99 | EXPORT_SYMBOL_GPL(__snd_printk); |
100 | #endif |
101 | |
102 | #ifdef CONFIG_PCI |
103 | #include <linux/pci.h> |
104 | /** |
105 | * snd_pci_quirk_lookup_id - look up a PCI SSID quirk list |
106 | * @vendor: PCI SSV id |
107 | * @device: PCI SSD id |
108 | * @list: quirk list, terminated by a null entry |
109 | * |
110 | * Look through the given quirk list and finds a matching entry |
111 | * with the same PCI SSID. When subdevice is 0, all subdevice |
112 | * values may match. |
113 | * |
114 | * Returns the matched entry pointer, or NULL if nothing matched. |
115 | */ |
116 | const struct snd_pci_quirk * |
117 | snd_pci_quirk_lookup_id(u16 vendor, u16 device, |
118 | const struct snd_pci_quirk *list) |
119 | { |
120 | const struct snd_pci_quirk *q; |
121 | |
122 | for (q = list; q->subvendor; q++) { |
123 | if (q->subvendor != vendor) |
124 | continue; |
125 | if (!q->subdevice || |
126 | (device & q->subdevice_mask) == q->subdevice) |
127 | return q; |
128 | } |
129 | return NULL; |
130 | } |
131 | EXPORT_SYMBOL(snd_pci_quirk_lookup_id); |
132 | |
133 | /** |
134 | * snd_pci_quirk_lookup - look up a PCI SSID quirk list |
135 | * @pci: pci_dev handle |
136 | * @list: quirk list, terminated by a null entry |
137 | * |
138 | * Look through the given quirk list and finds a matching entry |
139 | * with the same PCI SSID. When subdevice is 0, all subdevice |
140 | * values may match. |
141 | * |
142 | * Returns the matched entry pointer, or NULL if nothing matched. |
143 | */ |
144 | const struct snd_pci_quirk * |
145 | snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list) |
146 | { |
147 | return snd_pci_quirk_lookup_id(pci->subsystem_vendor, |
148 | pci->subsystem_device, |
149 | list); |
150 | } |
151 | EXPORT_SYMBOL(snd_pci_quirk_lookup); |
152 | #endif |
153 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9