Merge branch 'next' into for-linus

5 files changed, 64 insertions, 20 deletions

diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 3aead91bacc8..3126983c004a 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -639,7 +639,7 @@ exit:
  * device, resulting in trackpad malfunction under certain
  * circumstances. To get around this problem, there is at least one
  * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to
- * recieve a reset_resume request rather than the normal resume.
+ * receive a reset_resume request rather than the normal resume.
  * Since the implementation of reset_resume is equal to mode switch
  * plus start_traffic, it seems easier to always do the switch when
  * starting traffic on the device.
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 04d9bf320a4f..32503565faf9 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/input.h>
+#include <linux/input/mt.h>
 #include <linux/serio.h>
 #include <linux/libps2.h>
 #include "psmouse.h"
@@ -242,15 +243,37 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	input_sync(dev);
 }
 
+static void elantech_set_slot(struct input_dev *dev, int slot, bool active,
+			      unsigned int x, unsigned int y)
+{
+	input_mt_slot(dev, slot);
+	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
+	if (active) {
+		input_report_abs(dev, ABS_MT_POSITION_X, x);
+		input_report_abs(dev, ABS_MT_POSITION_Y, y);
+	}
+}
+
+/* x1 < x2 and y1 < y2 when two fingers, x = y = 0 when not pressed */
+static void elantech_report_semi_mt_data(struct input_dev *dev,
+					 unsigned int num_fingers,
+					 unsigned int x1, unsigned int y1,
+					 unsigned int x2, unsigned int y2)
+{
+	elantech_set_slot(dev, 0, num_fingers != 0, x1, y1);
+	elantech_set_slot(dev, 1, num_fingers == 2, x2, y2);
+}
+
 /*
  * Interpret complete data packets and report absolute mode input events for
  * hardware version 2. (6 byte packets)
  */
 static void elantech_report_absolute_v2(struct psmouse *psmouse)
 {
+	struct elantech_data *etd = psmouse->private;
 	struct input_dev *dev = psmouse->dev;
 	unsigned char *packet = psmouse->packet;
-	int fingers, x1, y1, x2, y2;
+	unsigned int fingers, x1 = 0, y1 = 0, x2 = 0, y2 = 0, width = 0, pres = 0;
 
 	/* byte 0: n1  n0   .   .   .   .   R   L */
 	fingers = (packet[0] & 0xc0) >> 6;
@@ -270,14 +293,18 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		 * byte 1:  .   .   .   .   .  x10 x9  x8
 		 * byte 2: x7  x6  x5  x4  x4  x2  x1  x0
 		 */
-		input_report_abs(dev, ABS_X,
-			((packet[1] & 0x07) << 8) | packet[2]);
+		x1 = ((packet[1] & 0x07) << 8) | packet[2];
 		/*
 		 * byte 4:  .   .   .   .   .   .  y9  y8
 		 * byte 5: y7  y6  y5  y4  y3  y2  y1  y0
 		 */
-		input_report_abs(dev, ABS_Y,
-			ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]));
+		y1 = ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]);
+
+		input_report_abs(dev, ABS_X, x1);
+		input_report_abs(dev, ABS_Y, y1);
+
+		pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+		width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4);
 		break;
 
 	case 2:
@@ -303,23 +330,24 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		 */
 		input_report_abs(dev, ABS_X, x1 << 2);
 		input_report_abs(dev, ABS_Y, y1 << 2);
-		/*
-		 * For compatibility with the proprietary X Elantech driver
-		 * report both coordinates as hat coordinates
-		 */
-		input_report_abs(dev, ABS_HAT0X, x1);
-		input_report_abs(dev, ABS_HAT0Y, y1);
-		input_report_abs(dev, ABS_HAT1X, x2);
-		input_report_abs(dev, ABS_HAT1Y, y2);
+
+		/* Unknown so just report sensible values */
+		pres = 127;
+		width = 7;
 		break;
 	}
 
+	elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
 	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
 	input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
 	input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
 	input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4);
 	input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
 	input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+	if (etd->reports_pressure) {
+		input_report_abs(dev, ABS_PRESSURE, pres);
+		input_report_abs(dev, ABS_TOOL_WIDTH, width);
+	}
 
 	input_sync(dev);
 }
@@ -478,10 +506,16 @@ static void elantech_set_input_params(struct psmouse *psmouse)
 		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
 		input_set_abs_params(dev, ABS_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0);
 		input_set_abs_params(dev, ABS_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0);
-		input_set_abs_params(dev, ABS_HAT0X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0);
-		input_set_abs_params(dev, ABS_HAT0Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0);
-		input_set_abs_params(dev, ABS_HAT1X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0);
-		input_set_abs_params(dev, ABS_HAT1Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0);
+		if (etd->reports_pressure) {
+			input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2,
+					     ETP_PMAX_V2, 0, 0);
+			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
+					     ETP_WMAX_V2, 0, 0);
+		}
+		__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
+		input_mt_init_slots(dev, 2);
+		input_set_abs_params(dev, ABS_MT_POSITION_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0);
 		break;
 	}
 }
@@ -725,6 +759,10 @@ int elantech_init(struct psmouse *psmouse)
 		etd->debug = 1;
 		/* Don't know how to do parity checking for version 2 */
 		etd->paritycheck = 0;
+
+		if (etd->fw_version >= 0x020800)
+			etd->reports_pressure = true;
+
 	} else {
 		etd->hw_version = 1;
 		etd->paritycheck = 1;
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index aa4aac5d2198..fabb2b99615c 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -77,6 +77,11 @@
 #define ETP_YMIN_V2			(   0 + ETP_EDGE_FUZZ_V2)
 #define ETP_YMAX_V2			( 768 - ETP_EDGE_FUZZ_V2)
 
+#define ETP_PMIN_V2			0
+#define ETP_PMAX_V2			255
+#define ETP_WMIN_V2			0
+#define ETP_WMAX_V2			15
+
 /*
  * For two finger touches the coordinate of each finger gets reported
  * separately but with reduced resolution.
@@ -102,6 +107,7 @@ struct elantech_data {
 	unsigned char capabilities;
 	bool paritycheck;
 	bool jumpy_cursor;
+	bool reports_pressure;
 	unsigned char hw_version;
 	unsigned int fw_version;
 	unsigned int single_finger_reports;
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index f6aa26d305ed..cba3c84d2f21 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -462,7 +462,7 @@ static void synaptics_i2c_work_handler(struct work_struct *work)
 	 * While interrupt driven, there is no real need to poll the device.
 	 * But touchpads are very sensitive, so there could be errors
 	 * related to physical environment and the attention line isn't
-	 * neccesarily asserted. In such case we can lose the touchpad.
+	 * necessarily asserted. In such case we can lose the touchpad.
 	 * We poll the device once in THREAD_IRQ_SLEEP_SECS and
 	 * if error is detected, we try to reset and reconfigure the touchpad.
 	 */
diff --git a/drivers/input/mouse/vsxxxaa.c b/drivers/input/mouse/vsxxxaa.c
index bf2c0c80d6cc..eb9a3cfbeefa 100644
--- a/drivers/input/mouse/vsxxxaa.c
+++ b/drivers/input/mouse/vsxxxaa.c
@@ -334,7 +334,7 @@ static void vsxxxaa_handle_POR_packet(struct vsxxxaa *mouse)
 	 * M: manufacturer location code
 	 * R: revision code
 	 * E: Error code. If it's in the range of 0x00..0x1f, only some
-	 *    minor problem occured. Errors >= 0x20 are considered bad
+	 *    minor problem occurred. Errors >= 0x20 are considered bad
 	 *    and the device may not work properly...
 	 * D: <0010> == mouse, <0100> == tablet
 	 */