1 files changed, 67 insertions, 92 deletions

diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c
index 2df7c5516013..a35631891cc0 100644
--- a/drivers/media/rc/ati_remote.c
+++ b/drivers/media/rc/ati_remote.c
@@ -279,46 +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_LU         3   /* Directional keypad diagonals - left up, */
-#define KIND_RU         4   /*   right up,  */
-#define KIND_LD         5   /*   left down, */
-#define KIND_RD         6   /*   right down */
-#define KIND_ACCEL      7   /* 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 {
-	short kind;
-	unsigned char data;
-	int type;
-	unsigned int code;
-	int value;
+	unsigned char kind;
+	unsigned char data;	/* Raw key code from remote */
+	unsigned short code;	/* Input layer translation */
 }  ati_remote_tbl[] = {
-	/* Directional control pad axes */
-	{KIND_ACCEL,   0x70, EV_REL, REL_X, -1},   /* left */
-	{KIND_ACCEL,   0x71, EV_REL, REL_X, 1},    /* right */
-	{KIND_ACCEL,   0x72, EV_REL, REL_Y, -1},   /* up */
-	{KIND_ACCEL,   0x73, EV_REL, REL_Y, 1},    /* down */
-	/* Directional control pad diagonals */
-	{KIND_LU,      0x74, EV_REL, 0, 0},        /* left up */
-	{KIND_RU,      0x75, EV_REL, 0, 0},        /* right up */
-	{KIND_LD,      0x77, EV_REL, 0, 0},        /* left down */
-	{KIND_RD,      0x76, EV_REL, 0, 0},        /* right down */
+	/* Directional control pad axes.  Code is xxyy */
+	{KIND_ACCEL,    0x70, 0xff00},	/* left */
+	{KIND_ACCEL,    0x71, 0x0100},	/* right */
+	{KIND_ACCEL,    0x72, 0x00ff},	/* up */
+	{KIND_ACCEL,    0x73, 0x0001},	/* 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 */
+	/* Directional control pad diagonals */
+	{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}
 };
 
 /*
@@ -493,7 +489,6 @@ static void ati_remote_input_report(struct urb *urb)
 	unsigned char *data= ati_remote->inbuf;
 	struct input_dev *dev = ati_remote->idev;
 	int index = -1;
-	int acc;
 	int remote_num;
 	unsigned char scancode;
 	u32 wheel_keycode = KEY_RESERVED;
@@ -507,8 +502,9 @@ static void ati_remote_input_report(struct urb *urb)
 	 */
 
 	/* Deal with strange looking inputs */
-	if ( (urb->actual_length != 4) || (data[0] != 0x14) ||
-		((data[3] & 0x0f) != 0x00) ) {
+	if ( urb->actual_length != 4 || data[0] != 0x14 ||
+	     data[1] != (unsigned char)(data[2] + data[3] + 0xD5) ||
+	     (data[3] & 0x0f) != 0x00) {
 		ati_remote_dump(&urb->dev->dev, data, urb->actual_length);
 		return;
 	}
@@ -524,9 +520,9 @@ static void ati_remote_input_report(struct urb *urb)
 	remote_num = (data[3] >> 4) & 0x0f;
 	if (channel_mask & (1 << (remote_num + 1))) {
 		dbginfo(&ati_remote->interface->dev,
-			"Masked input from channel 0x%02x: data %02x,%02x, "
+			"Masked input from channel 0x%02x: data %02x, "
 			"mask= 0x%02lx\n",
-			remote_num, data[1], data[2], channel_mask);
+			remote_num, data[2], channel_mask);
 		return;
 	}
 
@@ -566,16 +562,16 @@ 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);
-		input_sync(dev);
+		/*
+		 * 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));
 
 		ati_remote->old_jiffies = jiffies;
-		return;
-	}
 
-	if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) {
+	} else if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) {
 		unsigned long now = jiffies;
 
 		/* Filter duplicate events which happen "too close" together. */
@@ -588,12 +584,11 @@ static void ati_remote_input_report(struct urb *urb)
 			ati_remote->first_jiffies = now;
 		}
 
-		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 ||
@@ -601,7 +596,10 @@ static void ati_remote_input_report(struct urb *urb)
 				      msecs_to_jiffies(repeat_delay))))
 			return;
 
-		if (index < 0) {
+		if (index >= 0) {
+			input_event(dev, EV_KEY, ati_remote_tbl[index].code, 1);
+			input_event(dev, EV_KEY, ati_remote_tbl[index].code, 0);
+		} else {
 			/* Not a mouse event, hand it to rc-core. */
 			int count = 1;
 
@@ -622,61 +620,37 @@ static void ati_remote_input_report(struct urb *urb)
 				* it would cause ghost repeats which would be a
 				* regression for this driver.
 				*/
-				rc_keydown_notimeout(ati_remote->rdev, scancode,
-						     data[2]);
+				rc_keydown_notimeout(ati_remote->rdev, RC_TYPE_OTHER,
+						     scancode, data[2]);
 				rc_keyup(ati_remote->rdev);
 			}
-			return;
+			goto nosync;
 		}
 
-		input_event(dev, ati_remote_tbl[index].type,
-			ati_remote_tbl[index].code, 1);
-		input_sync(dev);
-		input_event(dev, ati_remote_tbl[index].type,
-			ati_remote_tbl[index].code, 0);
-		input_sync(dev);
-
-	} else {
+	} else if (ati_remote_tbl[index].kind == KIND_ACCEL) {
+		signed char dx = ati_remote_tbl[index].code >> 8;
+		signed char dy = ati_remote_tbl[index].code & 255;
 
 		/*
 		 * Other event kinds are from the directional control pad, and
 		 * have an acceleration factor applied to them.  Without this
 		 * acceleration, the control pad is mostly unusable.
 		 */
-		acc = ati_remote_compute_accel(ati_remote);
-
-		switch (ati_remote_tbl[index].kind) {
-		case KIND_ACCEL:
-			input_event(dev, ati_remote_tbl[index].type,
-				ati_remote_tbl[index].code,
-				ati_remote_tbl[index].value * acc);
-			break;
-		case KIND_LU:
-			input_report_rel(dev, REL_X, -acc);
-			input_report_rel(dev, REL_Y, -acc);
-			break;
-		case KIND_RU:
-			input_report_rel(dev, REL_X, acc);
-			input_report_rel(dev, REL_Y, -acc);
-			break;
-		case KIND_LD:
-			input_report_rel(dev, REL_X, -acc);
-			input_report_rel(dev, REL_Y, acc);
-			break;
-		case KIND_RD:
-			input_report_rel(dev, REL_X, acc);
-			input_report_rel(dev, REL_Y, acc);
-			break;
-		default:
-			dev_dbg(&ati_remote->interface->dev,
-				"ati_remote kind=%d\n",
-				ati_remote_tbl[index].kind);
-		}
-		input_sync(dev);
-
+		int acc = ati_remote_compute_accel(ati_remote);
+		if (dx)
+			input_report_rel(dev, REL_X, dx * acc);
+		if (dy)
+			input_report_rel(dev, REL_Y, dy * acc);
 		ati_remote->old_jiffies = jiffies;
-		ati_remote->old_data = data[2];
+
+	} else {
+		dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n",
+			ati_remote_tbl[index].kind);
+		return;
 	}
+	input_sync(dev);
+nosync:
+	ati_remote->old_data = data[2];
 }
 
 /*
@@ -763,8 +737,9 @@ 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)
-			set_bit(ati_remote_tbl[i].code, idev->keybit);
+		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);
 
@@ -784,7 +759,7 @@ static void ati_remote_rc_init(struct ati_remote *ati_remote)
 
 	rdev->priv = ati_remote;
 	rdev->driver_type = RC_DRIVER_SCANCODE;
-	rc_set_allowed_protocols(rdev, RC_BIT_OTHER);
+	rdev->allowed_protocols = RC_BIT_OTHER;
 	rdev->driver_name = "ati_remote";
 
 	rdev->open = ati_remote_rc_open;