Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / core / misc.c

diff --git a/kernel/sound/core/misc.c b/kernel/sound/core/misc.c
new file mode 100644 (file)
index 0000000..f2e8226
--- /dev/null
+++ b/kernel/sound/core/misc.c
@@ -0,0 +1,155 @@
+/*
+ *  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/export.h>
+#include <linux/moduleparam.h>
+#include <linux/time.h>
+#include <linux/slab.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;
+}
+#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_VERBOSE_PRINTK
+       int kern_level;
+       struct va_format vaf;
+       char verbose_fmt[] = KERN_DEFAULT "ALSA %s:%d %pV";
+#endif
+
+#ifdef CONFIG_SND_DEBUG
+       if (debug < level)
+               return;
+#endif
+
+       va_start(args, format);
+#ifdef CONFIG_SND_VERBOSE_PRINTK
+       vaf.fmt = format;
+       vaf.va = &args;
+
+       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;
+       } else if (level)
+               memcpy(verbose_fmt, KERN_DEBUG, sizeof(KERN_DEBUG) - 1);
+       printk(verbose_fmt, sanity_file_name(path), line, &vaf);
+
+#else
+       vprintk(format, args);
+#endif
+       va_end(args);
+}
+EXPORT_SYMBOL_GPL(__snd_printk);
+#endif
+
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+/**
+ * snd_pci_quirk_lookup_id - look up a PCI SSID quirk list
+ * @vendor: PCI SSV id
+ * @device: PCI SSD id
+ * @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_id(u16 vendor, u16 device,
+                       const struct snd_pci_quirk *list)
+{
+       const struct snd_pci_quirk *q;
+
+       for (q = list; q->subvendor; q++) {
+               if (q->subvendor != vendor)
+                       continue;
+               if (!q->subdevice ||
+                   (device & q->subdevice_mask) == q->subdevice)
+                       return q;
+       }
+       return NULL;
+}
+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)
+{
+       if (!pci)
+               return NULL;
+       return snd_pci_quirk_lookup_id(pci->subsystem_vendor,
+                                      pci->subsystem_device,
+                                      list);
+}
+EXPORT_SYMBOL(snd_pci_quirk_lookup);
+#endif