/* * Misc and compatibility things * Copyright (c) by Jaroslav Kysela <perex@perex.cz> * * * 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 * */ #include <linux/init.h> #include <linux/time.h> #include <linux/ioport.h> #include <sound/core.h> #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 */ void release_and_free_resource(struct resource *res) { if (res) { release_resource(res); kfree(res); } } EXPORT_SYMBOL(release_and_free_resource); #ifdef CONFIG_SND_VERBOSE_PRINTK /* strip the leading path if the given path is absolute */ static const char *sanity_file_name(const char *path) { if (*path == '/') return strrchr(path, '/') + 1; else return path; } /* print file and line with a certain printk prefix */ static int print_snd_pfx(unsigned int level, const char *path, int line, const char *format) { const char *file = sanity_file_name(path); char tmp[] = "<0>"; const char *pfx = level ? KERN_DEBUG : KERN_DEFAULT; int ret = 0; if (format[0] == '<' && format[2] == '>') { tmp[1] = format[1]; pfx = tmp; ret = 1; } printk("%sALSA %s:%d: ", pfx, file, line); return ret; } #else #define print_snd_pfx(level, path, line, format) 0 #endif #if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) void __snd_printk(unsigned int level, const char *path, int line, const char *format, ...) { va_list args; #ifdef CONFIG_SND_DEBUG if (debug < level) return; #endif va_start(args, format); if (print_snd_pfx(level, path, line, format)) format += 3; /* skip the printk level-prefix */ vprintk(format, args); va_end(args); } EXPORT_SYMBOL_GPL(__snd_printk); #endif #ifdef CONFIG_PCI #include <linux/pci.h> /** * 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) { const struct snd_pci_quirk *q; for (q = list; q->subvendor; q++) { if (q->subvendor != pci->subsystem_vendor) continue; if (!q->subdevice || (pci->subsystem_device & q->subdevice_mask) == q->subdevice) return q; } return NULL; } EXPORT_SYMBOL(snd_pci_quirk_lookup); #endif