staging: easycap: group module parameters handling

1. For readability group module parameters handling on one place
2. Introduce kernel config option EASY_DEBUG

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/easycap/Kconfig

@@ -15,3 +15,15 @@ config EASYCAP
 	  To compile this driver as a module, choose M here: the
 	  module will be called easycap
 
+config EASYCAP_DEBUG
+	bool "Enable EasyCAP driver debugging"
+	depends on EASYCAP
+
+	---help---
+	  This option enables debug printouts
+
+	  To enable debug, pass the debug level to the debug module
+          parameter:
+
+          modprobe easycap debug=[0..9]
+

drivers/staging/easycap/easycap.h

@@ -668,7 +668,6 @@ unsigned long long int remainder;
  *  IMMEDIATELY OBVIOUS FROM A CASUAL READING OF THE SOURCE CODE.  BEWARE.
 */
 /*---------------------------------------------------------------------------*/
-extern int easycap_debug;
 #define SAY(format, args...) do { \
 	printk(KERN_DEBUG "easycap:: %s: " \
 			format, __func__, ##args); \
@@ -678,7 +677,8 @@ extern int easycap_debug;
 			format, peasycap->isdongle, __func__, ##args);\
 } while (0)
 
-#if defined(EASYCAP_DEBUG)
+#ifdef CONFIG_EASYCAP_DEBUG
+extern int easycap_debug;
 #define JOT(n, format, args...) do { \
 	if (n <= easycap_debug) { \
 		printk(KERN_DEBUG "easycap:: %s: " \
@@ -695,7 +695,7 @@ extern int easycap_debug;
 #else
 #define JOT(n, format, args...) do {} while (0)
 #define JOM(n, format, args...) do {} while (0)
-#endif /*EASYCAP_DEBUG*/
+#endif /* CONFIG_EASYCAP_DEBUG */
 
 #define MICROSECONDS(X, Y) \
 			((1000000*((long long int)(X.tv_sec - Y.tv_sec))) + \

drivers/staging/easycap/easycap_main.c

@@ -30,13 +30,26 @@
 
 #include "easycap.h"
 
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("R.M. Thomas <rmthomas@sciolus.org>");
+MODULE_DESCRIPTION(EASYCAP_DRIVER_DESCRIPTION);
+MODULE_VERSION(EASYCAP_DRIVER_VERSION);
+
+#ifdef CONFIG_EASYCAP_DEBUG
 int easycap_debug;
-static int easycap_bars = 1;
-static int easycap_gain = 16;
 module_param_named(debug, easycap_debug, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug level: 0(default),1,2,...,9");
+#endif /* CONFIG_EASYCAP_DEBUG */
+
+static int easycap_bars = 1;
 module_param_named(bars, easycap_bars, int, S_IRUGO | S_IWUSR);
-module_param_named(gain, easycap_gain, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(bars,
+	"Testcard bars on input signal failure: 0=>no, 1=>yes(default)");
 
+static int easycap_gain = 16;
+module_param_named(gain, easycap_gain, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(gain, "Audio gain: 0,...,16(default),...31");
 struct easycap_dongle easycapdc60_dongle[DONGLE_MANY];
 static struct mutex mutex_dongle;
 
@@ -5113,14 +5126,4 @@ JOT(4, "ends\n");
 module_init(easycap_module_init);
 module_exit(easycap_module_exit);
 
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("R.M. Thomas <rmthomas@sciolus.org>");
-MODULE_DESCRIPTION(EASYCAP_DRIVER_DESCRIPTION);
-MODULE_VERSION(EASYCAP_DRIVER_VERSION);
-#if defined(EASYCAP_DEBUG)
-MODULE_PARM_DESC(debug, "Debug level: 0(default),1,2,...,9");
-#endif /*EASYCAP_DEBUG*/
-MODULE_PARM_DESC(bars,
-	"Testcard bars on input signal failure: 0=>no, 1=>yes(default)");
-MODULE_PARM_DESC(gain, "Audio gain: 0,...,16(default),...31");
 /*****************************************************************************/