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sound/core/misc.c
3.92 KB
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/* * Misc and compatibility things |
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
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* * * 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 * */ |
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#include <linux/init.h> |
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#include <linux/export.h> |
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#include <linux/moduleparam.h> |
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#include <linux/time.h> |
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#include <linux/slab.h> |
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#include <linux/ioport.h> |
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#include <sound/core.h> |
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#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 */ |
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void release_and_free_resource(struct resource *res) { if (res) { release_resource(res); |
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kfree(res); |
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} } |
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EXPORT_SYMBOL(release_and_free_resource); |
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#ifdef CONFIG_SND_VERBOSE_PRINTK |
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/* strip the leading path if the given path is absolute */ |
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static const char *sanity_file_name(const char *path) |
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{ |
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if (*path == '/') return strrchr(path, '/') + 1; else return path; } |
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#endif |
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#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) void __snd_printk(unsigned int level, const char *path, int line, const char *format, ...) |
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{ va_list args; |
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#ifdef CONFIG_SND_VERBOSE_PRINTK |
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int kern_level; |
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struct va_format vaf; char verbose_fmt[] = KERN_DEFAULT "ALSA %s:%d %pV"; #endif |
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#ifdef CONFIG_SND_DEBUG |
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if (debug < level) return; #endif |
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|
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va_start(args, format); |
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#ifdef CONFIG_SND_VERBOSE_PRINTK vaf.fmt = format; vaf.va = &args; |
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kern_level = printk_get_level(format); if (kern_level) { const char *end_of_header = printk_skip_level(format); memcpy(verbose_fmt, format, end_of_header - format); vaf.fmt = end_of_header; |
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} else if (level) |
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memcpy(verbose_fmt, KERN_DEBUG, sizeof(KERN_DEBUG) - 1); |
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printk(verbose_fmt, sanity_file_name(path), line, &vaf); |
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|
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#else |
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vprintk(format, args); |
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#endif |
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va_end(args); |
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} |
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EXPORT_SYMBOL_GPL(__snd_printk); |
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#endif |
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#ifdef CONFIG_PCI #include <linux/pci.h> /** |
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* snd_pci_quirk_lookup_id - look up a PCI SSID quirk list * @vendor: PCI SSV id * @device: PCI SSD id |
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* @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 * |
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snd_pci_quirk_lookup_id(u16 vendor, u16 device, const struct snd_pci_quirk *list) |
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{ const struct snd_pci_quirk *q; |
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for (q = list; q->subvendor; q++) { |
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if (q->subvendor != vendor) |
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continue; if (!q->subdevice || |
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(device & q->subdevice_mask) == q->subdevice) |
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return q; |
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} |
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return NULL; } |
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EXPORT_SYMBOL(snd_pci_quirk_lookup_id); /** * 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) { return snd_pci_quirk_lookup_id(pci->subsystem_vendor, pci->subsystem_device, list); } |
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EXPORT_SYMBOL(snd_pci_quirk_lookup); #endif |