Input: wacom - add support for new USB Tablet PCs

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/tablet/wacom.h

@@ -66,6 +66,7 @@
  *		   - Support Intuos3 4x6
  *      v1.47 (pc) - Added support for Bamboo
  *      v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX
+ *      v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A)
  */
 
 /*
@@ -86,7 +87,7 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "v1.48"
+#define DRIVER_VERSION "v1.49"
 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
 #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
 #define DRIVER_LICENSE "GPL"
@@ -103,15 +104,15 @@ struct wacom {
 	struct usb_device *usbdev;
 	struct usb_interface *intf;
 	struct urb *irq;
-	struct wacom_wac * wacom_wac;
+	struct wacom_wac *wacom_wac;
 	struct mutex lock;
 	unsigned int open:1;
 	char phys[32];
 };
 
 struct wacom_combo {
-	struct wacom * wacom;
-	struct urb * urb;
+	struct wacom *wacom;
+	struct urb *urb;
 };
 
 extern int wacom_wac_irq(struct wacom_wac * wacom_wac, void * wcombo);
@@ -132,7 +133,7 @@ extern void input_dev_mo(struct input_dev *input_dev, struct wacom_wac *wacom_wa
 extern void input_dev_bee(struct input_dev *input_dev, struct wacom_wac *wacom_wac);
 extern __u16 wacom_le16_to_cpu(unsigned char *data);
 extern __u16 wacom_be16_to_cpu(unsigned char *data);
-extern struct wacom_features * get_wacom_feature(const struct usb_device_id *id);
-extern const struct usb_device_id * get_device_table(void);
+extern struct wacom_features *get_wacom_feature(const struct usb_device_id *id);
+extern const struct usb_device_id *get_device_table(void);
 
 #endif

drivers/input/tablet/wacom_wac.c

@@ -535,31 +535,147 @@ static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
 	return 1;
 }
 
+int wacom_tpc_irq(struct wacom_wac *wacom, void *wcombo)
+{
+	char *data = wacom->data;
+	int prox = 0, pressure;
+	static int stylusInProx, touchInProx = 1, touchOut;
+	struct urb *urb = ((struct wacom_combo *)wcombo)->urb;
+
+	dbg("wacom_tpc_irq: received report #%d", data[0]);
+
+	if (urb->actual_length == 5 || data[0] == 6) { /* Touch data */
+		if (urb->actual_length == 5) {  /* with touch */
+			prox = data[0] & 0x03;
+		} else {  /* with capacity */
+			prox = data[1] & 0x03;
+		}
+
+		if (!stylusInProx) { /* stylus not in prox */
+			if (prox) {
+				if (touchInProx) {
+					wacom->tool[1] = BTN_TOOL_DOUBLETAP;
+					wacom->id[0] = TOUCH_DEVICE_ID;
+					if (urb->actual_length != 5) {
+						wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[2]));
+						wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[4]));
+						wacom_report_abs(wcombo, ABS_PRESSURE, wacom_le16_to_cpu(&data[6]));
+						wacom_report_key(wcombo, BTN_TOUCH, wacom_le16_to_cpu(&data[6]));
+					} else {
+						wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[1]));
+						wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[3]));
+						wacom_report_key(wcombo, BTN_TOUCH, 1);
+					}
+					wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]);
+					wacom_report_key(wcombo, wacom->tool[1], prox & 0x01);
+					touchOut = 1;
+					return 1;
+				}
+			} else {
+				wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]);
+				wacom_report_key(wcombo, wacom->tool[1], prox & 0x01);
+				wacom_report_key(wcombo, BTN_TOUCH, 0);
+				touchOut = 0;
+				touchInProx = 1;
+				return 1;
+			}
+		} else if (touchOut || !prox) { /* force touch out-prox */
+			wacom_report_abs(wcombo, ABS_MISC, TOUCH_DEVICE_ID);
+			wacom_report_key(wcombo, BTN_TOUCH, 0);
+			touchOut = 0;
+			touchInProx = 1;
+			return 1;
+		}
+	} else if (data[0] == 2) { /* Penabled */
+		prox = data[1] & 0x20;
+
+		touchInProx = 0;
+
+		wacom->id[0] = ERASER_DEVICE_ID;
+
+		/*
+		 * if going from out of proximity into proximity select between the eraser
+		 * and the pen based on the state of the stylus2 button, choose eraser if
+		 * pressed else choose pen. if not a proximity change from out to in, send
+		 * an out of proximity for previous tool then a in for new tool.
+		 */
+		if (prox) { /* in prox */
+			if (!wacom->tool[0]) {
+				/* Going into proximity select tool */
+				wacom->tool[1] = (data[1] & 0x08) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+				if (wacom->tool[1] == BTN_TOOL_PEN)
+					wacom->id[0] = STYLUS_DEVICE_ID;
+			} else if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[1] & 0x08)) {
+				/*
+				 * was entered with stylus2 pressed
+				 * report out proximity for previous tool
+				*/
+				wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]);
+				wacom_report_key(wcombo, wacom->tool[1], 0);
+				wacom_input_sync(wcombo);
+
+				/* set new tool */
+				wacom->tool[1] = BTN_TOOL_PEN;
+				wacom->id[0] = STYLUS_DEVICE_ID;
+				return 0;
+			}
+			if (wacom->tool[1] != BTN_TOOL_RUBBER) {
+				/* Unknown tool selected default to pen tool */
+				wacom->tool[1] = BTN_TOOL_PEN;
+				wacom->id[0] = STYLUS_DEVICE_ID;
+			}
+			wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02);
+			wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x10);
+			wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[2]));
+			wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[4]));
+			pressure = ((data[7] & 0x01) << 8) | data[6];
+			if (pressure < 0)
+				pressure = wacom->features->pressure_max + pressure + 1;
+			wacom_report_abs(wcombo, ABS_PRESSURE, pressure);
+			wacom_report_key(wcombo, BTN_TOUCH, pressure);
+		} else {
+			wacom_report_abs(wcombo, ABS_PRESSURE, 0);
+			wacom_report_key(wcombo, BTN_STYLUS, 0);
+			wacom_report_key(wcombo, BTN_STYLUS2, 0);
+			wacom_report_key(wcombo, BTN_TOUCH, 0);
+		}
+		wacom_report_key(wcombo, wacom->tool[1], prox);
+		wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]);
+		stylusInProx = prox;
+		wacom->tool[0] = prox;
+		return 1;
+	}
+	return 0;
+}
+
 int wacom_wac_irq(struct wacom_wac *wacom_wac, void *wcombo)
 {
 	switch (wacom_wac->features->type) {
 		case PENPARTNER:
-			return (wacom_penpartner_irq(wacom_wac, wcombo));
-			break;
+			return wacom_penpartner_irq(wacom_wac, wcombo);
+
 		case PL:
-			return (wacom_pl_irq(wacom_wac, wcombo));
-			break;
+			return wacom_pl_irq(wacom_wac, wcombo);
+
 		case WACOM_G4:
 		case GRAPHIRE:
 		case WACOM_MO:
-			return (wacom_graphire_irq(wacom_wac, wcombo));
-			break;
+			return wacom_graphire_irq(wacom_wac, wcombo);
+
 		case PTU:
-			return (wacom_ptu_irq(wacom_wac, wcombo));
-			break;
+			return wacom_ptu_irq(wacom_wac, wcombo);
+
 		case INTUOS:
 		case INTUOS3S:
 		case INTUOS3:
 		case INTUOS3L:
 		case CINTIQ:
 		case WACOM_BEE:
-			return (wacom_intuos_irq(wacom_wac, wcombo));
-			break;
+			return wacom_intuos_irq(wacom_wac, wcombo);
+
+		case TABLETPC:
+			return wacom_tpc_irq(wacom_wac, wcombo);
+
 		default:
 			return 0;
 	}
@@ -586,13 +702,15 @@ void wacom_init_input_dev(struct input_dev *input_dev, struct wacom_wac *wacom_w
 			/* fall through */
 		case INTUOS3S:
 			input_dev_i3s(input_dev, wacom_wac);
+			/* fall through */
 		case INTUOS:
 			input_dev_i(input_dev, wacom_wac);
 			break;
 		case PL:
 		case PTU:
+		case TABLETPC:
 			input_dev_pl(input_dev, wacom_wac);
-			break;
+			/* fall through */
 		case PENPARTNER:
 			input_dev_pt(input_dev, wacom_wac);
 			break;
@@ -611,6 +729,7 @@ static struct wacom_features wacom_features[] = {
 	{ "Wacom Graphire4 6x8", 8,  16704, 12064,  511, 63, WACOM_G4 },
 	{ "Wacom BambooFun 4x5", 9,  14760,  9225,  511, 63, WACOM_MO },
 	{ "Wacom BambooFun 6x8", 9,  21648, 13530,  511, 63, WACOM_MO },
+	{ "Wacom Bamboo1 Medium",8,  16704, 12064,  511, 63, GRAPHIRE },
 	{ "Wacom Volito",        8,   5104,  3712,  511, 63, GRAPHIRE },
 	{ "Wacom PenStation2",   8,   3250,  2320,  255, 63, GRAPHIRE },
 	{ "Wacom Volito2 4x5",   8,   5104,  3712,  511, 63, GRAPHIRE },
@@ -650,6 +769,10 @@ static struct wacom_features wacom_features[] = {
 	{ "Wacom Cintiq 21UX",   10, 87200, 65600, 1023, 63, CINTIQ },
 	{ "Wacom Cintiq 20WSX",  10, 86680, 54180, 1023, 63, WACOM_BEE },
 	{ "Wacom Cintiq 12WX",   10, 53020, 33440, 1023, 63, WACOM_BEE },
+	{ "Wacom DTU1931",        8, 37832, 30305,  511,  0, PL },
+	{ "Wacom ISDv4 90",       8, 26202, 16325,  255,  0, TABLETPC },
+	{ "Wacom ISDv4 93",       8, 26202, 16325,  255,  0, TABLETPC },
+	{ "Wacom ISDv4 9A",       8, 26202, 16325,  255,  0, TABLETPC },
 	{ "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 31, INTUOS },
 	{ }
 };
@@ -665,6 +788,7 @@ static struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x16) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x17) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x18) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x19) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x61) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x62) },
@@ -704,18 +828,26 @@ static struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC5) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC6) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC7) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x90) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x93) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x9A) },
 	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
 	{ }
 };
 
-const struct usb_device_id * get_device_table(void) {
-        const struct usb_device_id * id_table = wacom_ids;
+const struct usb_device_id *get_device_table(void)
+{
+        const struct usb_device_id *id_table = wacom_ids;
+
         return id_table;
 }
 
-struct wacom_features * get_wacom_feature(const struct usb_device_id * id) {
+struct wacom_features * get_wacom_feature(const struct usb_device_id *id)
+{
         int index = id - wacom_ids;
         struct wacom_features *wf = &wacom_features[index];
+
         return wf;
 }
 

drivers/input/tablet/wacom_wac.h

@@ -10,6 +10,7 @@
 #define WACOM_WAC_H
 
 #define STYLUS_DEVICE_ID	0x02
+#define TOUCH_DEVICE_ID		0x03
 #define CURSOR_DEVICE_ID	0x06
 #define ERASER_DEVICE_ID	0x0A
 #define PAD_DEVICE_ID		0x0F
@@ -27,6 +28,7 @@ enum {
 	CINTIQ,
 	WACOM_BEE,
 	WACOM_MO,
+	TABLETPC,
 	MAX_TYPE
 };
 
@@ -38,6 +40,8 @@ struct wacom_features {
 	int pressure_max;
 	int distance_max;
 	int type;
+	int touch_x_max;
+	int touch_y_max;
 };
 
 struct wacom_wac {