[media] ati_remote: Shrink the ati_remote_tbl even more

Get rid of the unnecessary "type" and "value" fields.
Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/rc/ati_remote.c

@@ -279,43 +279,42 @@ struct ati_remote {
 
 /* "Kinds" of messages sent from the hardware to the driver. */
 #define KIND_END        0
-#define KIND_LITERAL    1   /* Simply pass to input system */
+#define KIND_LITERAL    1   /* Simply pass to input system as EV_KEY */
 #define KIND_FILTERED   2   /* Add artificial key-up events, drop keyrepeats */
-#define KIND_ACCEL      3   /* Directional keypad - left, right, up, down.*/
+#define KIND_ACCEL      3   /* Translate to EV_REL mouse-move events */
 
 /* Translation table from hardware messages to input events. */
 static const struct {
 	unsigned char kind;
-	unsigned char data;
-	unsigned char type;
-	unsigned short code;
-	signed char value;
+	unsigned char data;	/* Raw key code from remote */
+	unsigned short code;	/* Input layer translation */
 }  ati_remote_tbl[] = {
 	/* Directional control pad axes.  Code is xxyy */
-	{KIND_ACCEL,   0x70, EV_REL, 0xff00, 0},	/* left */
-	{KIND_ACCEL,   0x71, EV_REL, 0x0100, 0},	/* right */
-	{KIND_ACCEL,   0x72, EV_REL, 0x00ff, 0},	/* up */
-	{KIND_ACCEL,   0x73, EV_REL, 0x0001, 0},	/* down */
+	{KIND_ACCEL,    0x70, 0xff00},	/* left */
+	{KIND_ACCEL,    0x71, 0x0100},	/* right */
+	{KIND_ACCEL,    0x72, 0x00ff},	/* up */
+	{KIND_ACCEL,    0x73, 0x0001},	/* down */
 
 	/* Directional control pad diagonals */
-	{KIND_ACCEL,   0x74, EV_REL, 0xffff, 0},	/* left up */
-	{KIND_ACCEL,   0x75, EV_REL, 0x01ff, 0},	/* right up */
-	{KIND_ACCEL,   0x77, EV_REL, 0xff01, 0},	/* left down */
-	{KIND_ACCEL,   0x76, EV_REL, 0x0101, 0},	/* right down */
-
-	/* "Mouse button" buttons */
-	{KIND_LITERAL, 0x78, EV_KEY, BTN_LEFT, 1}, /* left btn down */
-	{KIND_LITERAL, 0x79, EV_KEY, BTN_LEFT, 0}, /* left btn up */
-	{KIND_LITERAL, 0x7c, EV_KEY, BTN_RIGHT, 1},/* right btn down */
-	{KIND_LITERAL, 0x7d, EV_KEY, BTN_RIGHT, 0},/* right btn up */
+	{KIND_ACCEL,    0x74, 0xffff},	/* left up */
+	{KIND_ACCEL,    0x75, 0x01ff},	/* right up */
+	{KIND_ACCEL,    0x77, 0xff01},	/* left down */
+	{KIND_ACCEL,    0x76, 0x0101},	/* right down */
+
+	/* "Mouse button" buttons.  The code below uses the fact that the
+	 * lsbit of the raw code is a down/up indicator. */
+	{KIND_LITERAL,  0x78, BTN_LEFT}, /* left btn down */
+	{KIND_LITERAL,  0x79, BTN_LEFT}, /* left btn up */
+	{KIND_LITERAL,  0x7c, BTN_RIGHT},/* right btn down */
+	{KIND_LITERAL,  0x7d, BTN_RIGHT},/* right btn up */
 
 	/* Artificial "doubleclick" events are generated by the hardware.
 	 * They are mapped to the "side" and "extra" mouse buttons here. */
-	{KIND_FILTERED, 0x7a, EV_KEY, BTN_SIDE, 1}, /* left dblclick */
-	{KIND_FILTERED, 0x7e, EV_KEY, BTN_EXTRA, 1},/* right dblclick */
+	{KIND_FILTERED, 0x7a, BTN_SIDE}, /* left dblclick */
+	{KIND_FILTERED, 0x7e, BTN_EXTRA},/* right dblclick */
 
 	/* Non-mouse events are handled by rc-core */
-	{KIND_END, 0x00, EV_MAX + 1, 0, 0}
+	{KIND_END, 0x00, 0}
 };
 
 /*
@@ -563,9 +562,12 @@ static void ati_remote_input_report(struct urb *urb)
 	}
 
 	if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) {
-		input_event(dev, ati_remote_tbl[index].type,
-			ati_remote_tbl[index].code,
-			ati_remote_tbl[index].value);
+		/*
+		 * The lsbit of the raw key code is a down/up flag.
+		 * Invert it to match the input layer's conventions.
+		 */
+		input_event(dev, EV_KEY, ati_remote_tbl[index].code,
+			!(data[2] & 1));
 		input_sync(dev);
 
 		ati_remote->old_jiffies = jiffies;
@@ -586,9 +588,9 @@ static void ati_remote_input_report(struct urb *urb)
 		ati_remote->old_data = data[2];
 		ati_remote->old_jiffies = now;
 
-		/* Ensure we skip at least the 4 first duplicate events (generated
-		 * by a single keypress), and continue skipping until repeat_delay
-		 * msecs have passed
+		/* Ensure we skip at least the 4 first duplicate events
+		 * (generated by a single keypress), and continue skipping
+		 * until repeat_delay msecs have passed.
 		 */
 		if (ati_remote->repeat_count > 0 &&
 		    (ati_remote->repeat_count < 5 ||
@@ -624,10 +626,8 @@ static void ati_remote_input_report(struct urb *urb)
 			return;
 		}
 
-		input_event(dev, ati_remote_tbl[index].type,
-			ati_remote_tbl[index].code, 1);
-		input_event(dev, ati_remote_tbl[index].type,
-			ati_remote_tbl[index].code, 0);
+		input_event(dev, EV_KEY, ati_remote_tbl[index].code, 1);
+		input_event(dev, EV_KEY, ati_remote_tbl[index].code, 0);
 		input_sync(dev);
 
 	} else if (ati_remote_tbl[index].kind == KIND_ACCEL) {
@@ -738,7 +738,8 @@ static void ati_remote_input_init(struct ati_remote *ati_remote)
 		BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
 	idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
 	for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++)
-		if (ati_remote_tbl[i].type == EV_KEY)
+		if (ati_remote_tbl[i].kind == KIND_LITERAL ||
+		    ati_remote_tbl[i].kind == KIND_FILTERED)
 			set_bit(ati_remote_tbl[i].code, idev->keybit);
 
 	input_set_drvdata(idev, ati_remote);