V4L/DVB (13531): ir-common: rename the debug routine to allow exporting it

As newer IR common code will be added on other files, we need a global
debug var inside the module.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/ir-functions.c

@@ -34,11 +34,8 @@ static int repeat = 1;
 module_param(repeat, int, 0444);
 MODULE_PARM_DESC(repeat,"auto-repeat for IR keys (default: on)");
 
-static int debug;    /* debug level (0,1,2) */
-module_param(debug, int, 0644);
-
-#define dprintk(level, fmt, arg...)	if (debug >= level) \
-	printk(KERN_DEBUG fmt , ## arg)
+int media_ir_debug;    /* media_ir_debug level (0,1,2) */
+module_param_named(debug, media_ir_debug, int, 0644);
 
 /* -------------------------------------------------------------------------- */
 
@@ -49,7 +46,7 @@ static void ir_input_key_event(struct input_dev *dev, struct ir_input_state *ir)
 		       dev->name,ir->ir_key,ir->ir_raw,ir->keypressed);
 		return;
 	}
-	dprintk(1,"%s: key event code=%d down=%d\n",
+	IR_dprintk(1,"%s: key event code=%d down=%d\n",
 		dev->name,ir->keycode,ir->keypressed);
 	input_report_key(dev,ir->keycode,ir->keypressed);
 	input_sync(dev);
@@ -295,11 +292,11 @@ u32 ir_rc5_decode(unsigned int code)
 			rc5 |= 1;
 			break;
 		case 3:
-			dprintk(1, "ir-common: ir_rc5_decode(%x) bad code\n", org_code);
+			IR_dprintk(1, "ir-common: ir_rc5_decode(%x) bad code\n", org_code);
 			return 0;
 		}
 	}
-	dprintk(1, "ir-common: code=%x, rc5=%x, start=%x, toggle=%x, address=%x, "
+	IR_dprintk(1, "ir-common: code=%x, rc5=%x, start=%x, toggle=%x, address=%x, "
 		"instr=%x\n", rc5, org_code, RC5_START(rc5),
 		RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5));
 	return rc5;
@@ -331,20 +328,20 @@ void ir_rc5_timer_end(unsigned long data)
 
 	/* Allow some timer jitter (RC5 is ~24ms anyway so this is ok) */
 	if (gap < 28000) {
-		dprintk(1, "ir-common: spurious timer_end\n");
+		IR_dprintk(1, "ir-common: spurious timer_end\n");
 		return;
 	}
 
 	if (ir->last_bit < 20) {
 		/* ignore spurious codes (caused by light/other remotes) */
-		dprintk(1, "ir-common: short code: %x\n", ir->code);
+		IR_dprintk(1, "ir-common: short code: %x\n", ir->code);
 	} else {
 		ir->code = (ir->code << ir->shift_by) | 1;
 		rc5 = ir_rc5_decode(ir->code);
 
 		/* two start bits? */
 		if (RC5_START(rc5) != ir->start) {
-			dprintk(1, "ir-common: rc5 start bits invalid: %u\n", RC5_START(rc5));
+			IR_dprintk(1, "ir-common: rc5 start bits invalid: %u\n", RC5_START(rc5));
 
 			/* right address? */
 		} else if (RC5_ADDR(rc5) == ir->addr) {
@@ -354,7 +351,7 @@ void ir_rc5_timer_end(unsigned long data)
 			/* Good code, decide if repeat/repress */
 			if (toggle != RC5_TOGGLE(ir->last_rc5) ||
 			    instr != RC5_INSTR(ir->last_rc5)) {
-				dprintk(1, "ir-common: instruction %x, toggle %x\n", instr,
+				IR_dprintk(1, "ir-common: instruction %x, toggle %x\n", instr,
 					toggle);
 				ir_input_nokey(ir->dev, &ir->ir);
 				ir_input_keydown(ir->dev, &ir->ir, instr,
@@ -377,7 +374,7 @@ void ir_rc5_timer_keyup(unsigned long data)
 {
 	struct card_ir *ir = (struct card_ir *)data;
 
-	dprintk(1, "ir-common: key released\n");
+	IR_dprintk(1, "ir-common: key released\n");
 	ir_input_nokey(ir->dev, &ir->ir);
 }
 EXPORT_SYMBOL_GPL(ir_rc5_timer_keyup);

include/media/ir-common.h

@@ -27,6 +27,10 @@
 #include <linux/workqueue.h>
 #include <linux/interrupt.h>
 
+extern int media_ir_debug;    /* media_ir_debug level (0,1,2) */
+#define IR_dprintk(level, fmt, arg...)	if (media_ir_debug >= level) \
+	printk(KERN_DEBUG fmt , ## arg)
+
 #define IR_TYPE_RC5     1
 #define IR_TYPE_PD      2 /* Pulse distance encoded IR */
 #define IR_TYPE_OTHER  99