1 files changed, 83 insertions, 36 deletions

diff --git a/sound/core/misc.c b/sound/core/misc.c
index 102d1c36cf2..30e027ecf4d 100644
--- a/sound/core/misc.c
+++ b/sound/core/misc.c
@@ -20,10 +20,27 @@
  */
 
 #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) {
@@ -35,53 +52,60 @@ void release_and_free_resource(struct resource *res)
 EXPORT_SYMBOL(release_and_free_resource);
 
 #ifdef CONFIG_SND_VERBOSE_PRINTK
-void snd_verbose_printk(const char *file, int line, const char *format, ...)
+/* strip the leading path if the given path is absolute */
+static const char *sanity_file_name(const char *path)
 {
-	va_list args;
-	
-	if (format[0] == '<' && format[1] >= '0' && format[1] <= '9' && format[2] == '>') {
-		char tmp[] = "<0>";
-		tmp[1] = format[1];
-		printk("%sALSA %s:%d: ", tmp, file, line);
-		format += 3;
-	} else {
-		printk("ALSA %s:%d: ", file, line);
-	}
-	va_start(args, format);
-	vprintk(format, args);
-	va_end(args);
+	if (*path == '/')
+		return strrchr(path, '/') + 1;
+	else
+		return path;
 }
-
-EXPORT_SYMBOL(snd_verbose_printk);
 #endif
 
-#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
-void snd_verbose_printd(const char *file, int line, const char *format, ...)
+#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;
-	
-	if (format[0] == '<' && format[1] >= '0' && format[1] <= '9' && format[2] == '>') {
-		char tmp[] = "<0>";
-		tmp[1] = format[1];
-		printk("%sALSA %s:%d: ", tmp, file, line);
-		format += 3;
-	} else {
-		printk(KERN_DEBUG "ALSA %s:%d: ", file, line);
-	}
+#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(snd_verbose_printd);
+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
+ * 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
@@ -91,16 +115,39 @@ EXPORT_SYMBOL(snd_verbose_printd);
  * 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)
+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 == pci->subsystem_vendor &&
-		    (!q->subdevice || q->subdevice == pci->subsystem_device))
+	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)
+{
+	return snd_pci_quirk_lookup_id(pci->subsystem_vendor,
+				       pci->subsystem_device,
+				       list);
+}
 EXPORT_SYMBOL(snd_pci_quirk_lookup);
 #endif