Merge bk://kernel.bkbits.net/jgarzik/net-drivers-2.5

into home.osdl.org:/home/torvalds/v2.5/linux

Documentation/kernel-parameters.txt

@@ -788,6 +788,10 @@ running once the system is up.
 
 	psmouse_noext	[HW,MOUSE] Disable probing for PS2 mouse protocol extensions
 
+	psmouse_resetafter=
+			[HW,MOUSE] Try to reset Synaptics Touchpad after so many
+			bad packets (0 = never).
+
 	pss=		[HW,OSS] Personal Sound System (ECHO ESC614)
 			Format: <io>,<mss_io>,<mss_irq>,<mss_dma>,<mpu_io>,<mpu_irq>
 

drivers/char/keyboard.c

@@ -205,7 +205,7 @@ int setkeycode(unsigned int scancode, unsigned int keycode)
 	INPUT_KEYCODE(dev, scancode) = keycode;
 
 	for (i = 0; i < dev->keycodemax; i++)
-		if(INPUT_KEYCODE(dev, scancode) == oldkey)
+		if(keycode == oldkey)
 			break;
 	if (i == dev->keycodemax)
 		clear_bit(oldkey, dev->keybit);

drivers/input/evdev.c

@@ -208,7 +208,7 @@ static int evdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 	struct evdev *evdev = list->evdev;
 	struct input_dev *dev = evdev->handle.dev;
 	struct input_absinfo abs;
-	int i, t, u;
+	int i, t, u, v;
 
 	if (!evdev->exist) return -ENODEV;
 
@@ -239,14 +239,12 @@ static int evdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		case EVIOCSKEYCODE:
 			if (get_user(t, ((int *) arg) + 0)) return -EFAULT;
 			if (t < 0 || t > dev->keycodemax || !dev->keycodesize) return -EINVAL;
+			if (get_user(v, ((int *) arg) + 1)) return -EFAULT;
 			u = INPUT_KEYCODE(dev, t);
-			if (get_user(INPUT_KEYCODE(dev, t), ((int *) arg) + 1)) return -EFAULT;
-
-			for (i = 0; i < dev->keycodemax; i++)
-				if(INPUT_KEYCODE(dev, t) == u) break;
+			INPUT_KEYCODE(dev, t) = v;
+			for (i = 0; i < dev->keycodemax; i++) if (v == u) break;
 			if (i == dev->keycodemax) clear_bit(u, dev->keybit);
-			set_bit(INPUT_KEYCODE(dev, t), dev->keybit);
-
+			set_bit(v, dev->keybit);
 			return 0;
 
 		case EVIOCSFF:

drivers/input/input.c

@@ -426,7 +426,9 @@ void input_register_device(struct input_dev *dev)
 	init_timer(&dev->timer);
 	dev->timer.data = (long) dev;
 	dev->timer.function = input_repeat_key;
+	if (!dev->rep[REP_DELAY])
 		dev->rep[REP_DELAY] = HZ/4;
+	if (!dev->rep[REP_PERIOD])
 		dev->rep[REP_PERIOD] = HZ/33;
 
 	INIT_LIST_HEAD(&dev->h_list);

drivers/input/joystick/db9.c

@@ -55,7 +55,9 @@ MODULE_PARM(db9_3, "2i");
 #define DB9_MULTI_0802		0x08
 #define DB9_MULTI_0802_2	0x09
 #define DB9_CD32_PAD		0x0A
-#define DB9_MAX_PAD		0x0B
+#define DB9_SATURN_DPP		0x0B
+#define DB9_SATURN_DPP_2	0x0C
+#define DB9_MAX_PAD		0x0D
 
 #define DB9_UP			0x01
 #define DB9_DOWN		0x02
@@ -69,10 +71,7 @@ MODULE_PARM(db9_3, "2i");
 #define DB9_NORMAL		0x0a
 #define DB9_NOSELECT		0x08
 
-#define DB9_SATURN0		0x00
-#define DB9_SATURN1		0x02
-#define DB9_SATURN2		0x04
-#define DB9_SATURN3		0x06
+#define DB9_MAX_DEVICES 2
 
 #define DB9_GENESIS6_DELAY	14
 #define DB9_REFRESH_TIME	HZ/100
@@ -82,7 +81,7 @@ static int db9_2[] __initdata = { -1, 0 };
 static int db9_3[] __initdata = { -1, 0 };
 
 struct db9 {
-	struct input_dev dev[2];
+	struct input_dev dev[DB9_MAX_DEVICES];
 	struct timer_list timer;
 	struct pardevice *pd;	
 	int mode;
@@ -96,12 +95,247 @@ static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
 static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
 static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
 
-static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 8, 1, 1, 7 };
+static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };
 static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
-					db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn };
+					db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,
+					db9_cd32_btn, db9_cd32_btn };
 static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
 				      NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
-				     "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad" };
+				     "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };
+
+static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };
+static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };
+static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };
+static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };
+
+/*
+ * Saturn controllers
+ */
+#define DB9_SATURN_DELAY 300
+static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
+static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
+
+/*
+ * db9_saturn_write_sub() writes 2 bit data.
+ */
+static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
+{
+	unsigned char c;
+
+	switch (type) {
+	case 1: /* DPP1 */
+		c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
+		parport_write_data(port, c);
+		break;
+	case 2: /* DPP2 */
+		c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
+		parport_write_data(port, c);
+		break;
+	case 0:	/* DB9 */
+		c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
+		parport_write_control(port, c);
+		break;
+	}
+}
+
+/*
+ * gc_saturn_read_sub() reads 4 bit data.
+ */
+static unsigned char db9_saturn_read_sub(struct parport *port, int type)
+{
+	unsigned char data;
+
+	if (type) {
+		/* DPP */
+		data = parport_read_status(port) ^ 0x80;
+		return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
+		     | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
+	} else {
+		/* DB9 */
+		data = parport_read_data(port) & 0x0f;
+		return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
+		     | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
+	}
+}
+
+/*
+ * db9_saturn_read_analog() sends clock and reads 8 bit data.
+ */
+static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
+{
+	unsigned char data;
+
+	db9_saturn_write_sub(port, type, 0, powered, 0);
+	udelay(DB9_SATURN_DELAY);
+	data = db9_saturn_read_sub(port, type) << 4;
+	db9_saturn_write_sub(port, type, 2, powered, 0);
+	udelay(DB9_SATURN_DELAY);
+	data |= db9_saturn_read_sub(port, type);
+	return data;
+}
+
+/*
+ * db9_saturn_read_packet() reads whole saturn packet at connector 
+ * and returns device identifier code.
+ */
+static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
+{
+	int i, j;
+	unsigned char tmp;
+
+	db9_saturn_write_sub(port, type, 3, powered, 0);
+	data[0] = db9_saturn_read_sub(port, type);
+	switch (data[0] & 0x0f) {
+	case 0xf:
+		/* 1111  no pad */
+		return data[0] = 0xff;
+	case 0x4: case 0x4 | 0x8:
+		/* ?100 : digital controller */
+		db9_saturn_write_sub(port, type, 0, powered, 1);
+		data[2] = db9_saturn_read_sub(port, type) << 4;
+		db9_saturn_write_sub(port, type, 2, powered, 1);
+		data[1] = db9_saturn_read_sub(port, type) << 4;
+		db9_saturn_write_sub(port, type, 1, powered, 1);
+		data[1] |= db9_saturn_read_sub(port, type);
+		db9_saturn_write_sub(port, type, 3, powered, 1);
+		/* data[2] |= db9_saturn_read_sub(port, type); */
+		data[2] |= data[0];
+		return data[0] = 0x02;
+	case 0x1:
+		/* 0001 : analog controller or multitap */
+		db9_saturn_write_sub(port, type, 2, powered, 0);
+		udelay(DB9_SATURN_DELAY);
+		data[0] = db9_saturn_read_analog(port, type, powered);
+		if (data[0] != 0x41) {
+			/* read analog controller */
+			for (i = 0; i < (data[0] & 0x0f); i++)
+				data[i + 1] = db9_saturn_read_analog(port, type, powered);
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return data[0];
+		} else {
+			/* read multitap */
+			if (db9_saturn_read_analog(port, type, powered) != 0x60)
+				return data[0] = 0xff;
+			for (i = 0; i < 60; i += 10) {
+				data[i] = db9_saturn_read_analog(port, type, powered);
+				if (data[i] != 0xff)
+					/* read each pad */
+					for (j = 0; j < (data[i] & 0x0f); j++)
+						data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
+			}
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return 0x41;
+		}
+	case 0x0:
+		/* 0000 : mouse */
+		db9_saturn_write_sub(port, type, 2, powered, 0);
+		udelay(DB9_SATURN_DELAY);
+		tmp = db9_saturn_read_analog(port, type, powered);
+		if (tmp == 0xff) {
+			for (i = 0; i < 3; i++)
+				data[i + 1] = db9_saturn_read_analog(port, type, powered);
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return data[0] = 0xe3;
+		}
+	default:
+		return data[0];
+	}
+}
+
+/*
+ * db9_saturn_report() analyzes packet and reports.
+ */
+static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads)
+{
+	int tmp, i, j;
+
+	tmp = (id == 0x41) ? 60 : 10;
+	for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) {
+		switch (data[j]) {
+		case 0x16: /* multi controller (analog 4 axis) */
+			input_report_abs(dev + n, db9_abs[5], data[j + 6]);
+		case 0x15: /* mission stick (analog 3 axis) */
+			input_report_abs(dev + n, db9_abs[3], data[j + 4]);
+			input_report_abs(dev + n, db9_abs[4], data[j + 5]);
+		case 0x13: /* racing controller (analog 1 axis) */
+			input_report_abs(dev + n, db9_abs[2], data[j + 3]);
+		case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
+		case 0x02: /* digital pad (digital 2 axis + buttons) */
+			input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+			input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+			for (i = 0; i < 9; i++)
+				input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+			break;
+		case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
+			input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+			input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+			for (i = 0; i < 9; i++)
+				input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+			input_report_abs(dev + n, db9_abs[2], data[j + 3]);
+			input_report_abs(dev + n, db9_abs[3], data[j + 4]);
+			input_report_abs(dev + n, db9_abs[4], data[j + 5]);
+			/*
+			input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
+			input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
+			*/
+			input_report_abs(dev + n, db9_abs[6], data[j + 7]);
+			input_report_abs(dev + n, db9_abs[7], data[j + 8]);
+			input_report_abs(dev + n, db9_abs[5], data[j + 9]);
+			break;
+		case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
+			input_report_key(dev + n, BTN_A, data[j + 3] & 0x80);
+			input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f);
+			break;
+		case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
+			input_report_key(dev + n, BTN_START, data[j + 1] & 0x08);
+			input_report_key(dev + n, BTN_A, data[j + 1] & 0x04);
+			input_report_key(dev + n, BTN_C, data[j + 1] & 0x02);
+			input_report_key(dev + n, BTN_B, data[j + 1] & 0x01);
+			input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80);
+			input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
+			break;
+		case 0xff:
+		default: /* no pad */
+			input_report_abs(dev + n, db9_abs[0], 0);
+			input_report_abs(dev + n, db9_abs[1], 0);
+			for (i = 0; i < 9; i++)
+				input_report_key(dev + n, db9_cd32_btn[i], 0);
+			break;
+		}
+	}
+	return n;
+}
+
+static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
+{
+	unsigned char id, data[60];
+	int type, n, max_pads;
+	int tmp, i;
+
+	switch (mode) {
+	case DB9_SATURN_PAD:
+		type = 0;
+		n = 1;
+		break;
+	case DB9_SATURN_DPP:
+		type = 1;
+		n = 1;
+		break;
+	case DB9_SATURN_DPP_2:
+		type = 1;
+		n = 2;
+		break;
+	default:
+		return -1;
+	}
+	max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES);
+	for (tmp = 0, i = 0; i < n; i++) {
+		id = db9_saturn_read_packet(port, data, type + i, 1);
+		tmp = db9_saturn_report(id, data, dev, tmp, max_pads);
+	}
+	return 0;
+}
 
 static void db9_timer(unsigned long private)
 {
@@ -222,28 +456,10 @@ static void db9_timer(unsigned long private)
 			break;
 
 		case DB9_SATURN_PAD:
+		case DB9_SATURN_DPP:
+		case DB9_SATURN_DPP_2:
 
-			parport_write_control(port, DB9_SATURN0);
-			data = parport_read_data(port);
-
-			input_report_key(dev, BTN_Y,  ~data & DB9_LEFT);
-			input_report_key(dev, BTN_Z,  ~data & DB9_DOWN);
-			input_report_key(dev, BTN_TL, ~data & DB9_UP);
-			input_report_key(dev, BTN_TR, ~data & DB9_RIGHT);
-
-			parport_write_control(port, DB9_SATURN2);
-			data = parport_read_data(port);
-
-			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
-			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
-			
-			parport_write_control(port, DB9_NORMAL);
-			data = parport_read_data(port);
-
-			input_report_key(dev, BTN_A, ~data & DB9_LEFT);
-			input_report_key(dev, BTN_B, ~data & DB9_UP);
-			input_report_key(dev, BTN_C, ~data & DB9_DOWN);
-			input_report_key(dev, BTN_X, ~data & DB9_RIGHT);
+			db9_saturn(db9->mode, port, dev);
 			break;
 
 		case DB9_CD32_PAD:
@@ -279,8 +495,10 @@ static int db9_open(struct input_dev *dev)
 	if (!db9->used++) {
 		parport_claim(db9->pd);
 		parport_write_data(port, 0xff);
+		if (db9_reverse[db9->mode]) {
 			parport_data_reverse(port);
 			parport_write_control(port, DB9_NORMAL);
+		}
 		mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
 	}
 
@@ -321,10 +539,12 @@ static struct db9 __init *db9_probe(int *config)
 		return NULL;
 	}
 
-	if (!(pp->modes & PARPORT_MODE_TRISTATE) && config[1] != DB9_MULTI_0802) {
+	if (db9_bidirectional[config[1]]) {
+		if (!(pp->modes & PARPORT_MODE_TRISTATE)) {
 			printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
 			return NULL;
 		}
+	}
 
 	if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL)))
 		return NULL;
@@ -343,7 +563,7 @@ static struct db9 __init *db9_probe(int *config)
 		return NULL;
 	}
 
-	for (i = 0; i < 1 + (db9->mode == DB9_MULTI_0802_2); i++) {
+	for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) {
 
 		sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
 
@@ -359,14 +579,19 @@ static struct db9 __init *db9_probe(int *config)
 		db9->dev[i].id.version = 0x0100;
 
 		db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
-		db9->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
-
 		for (j = 0; j < db9_buttons[db9->mode]; j++)
 			set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit); 
-
-		db9->dev[i].absmin[ABS_X] = -1; db9->dev[i].absmax[ABS_X] = 1;
-		db9->dev[i].absmin[ABS_Y] = -1; db9->dev[i].absmax[ABS_Y] = 1;
-
+		for (j = 0; j < db9_num_axis[db9->mode]; j++) {
+			set_bit(db9_abs[j], db9->dev[i].absbit);
+			if (j < 2) {
+				db9->dev[i].absmin[db9_abs[j]] = -1;
+				db9->dev[i].absmax[db9_abs[j]] = 1;
+			} else {
+				db9->dev[i].absmin[db9_abs[j]] = 1;
+				db9->dev[i].absmax[db9_abs[j]] = 255;
+				db9->dev[i].absflat[db9_abs[j]] = 0;
+			}
+		}
 		input_register_device(db9->dev + i);
 		printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name);
 	}
@@ -419,7 +644,7 @@ void __exit db9_exit(void)
 
 	for (i = 0; i < 3; i++) 
 		if (db9_base[i]) {
-			for (j = 0; j < 1 + (db9_base[i]->mode == DB9_MULTI_0802_2); j++)
+			for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++)
 				input_unregister_device(db9_base[i]->dev + j);
 		parport_unregister_device(db9_base[i]->pd);
 	}

drivers/input/joystick/iforce/iforce-packets.c

@@ -166,7 +166,6 @@ void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data,
 		iforce->expect_packet = 0;
 		iforce->ecmd = cmd;
 		memcpy(iforce->edata, data, IFORCE_MAX_LENGTH);
-		if (waitqueue_active(&iforce->wait))
 		wake_up(&iforce->wait);
 	}
 #endif
@@ -264,7 +263,7 @@ int iforce_get_id_packet(struct iforce *iforce, char *packet)
 		set_current_state(TASK_INTERRUPTIBLE);
 		add_wait_queue(&iforce->wait, &wait);
 
-		if (usb_submit_urb(iforce->ctrl, GFP_KERNEL)) {
+		if (usb_submit_urb(iforce->ctrl, GFP_ATOMIC)) {
 			set_current_state(TASK_RUNNING);
 			remove_wait_queue(&iforce->wait, &wait);
 			return -1;

drivers/input/joystick/iforce/iforce-usb.c

@@ -116,7 +116,6 @@ static void iforce_usb_out(struct urb *urb, struct pt_regs *regs)
 
 	iforce_usb_xmit(iforce);
 
-	if (waitqueue_active(&iforce->wait))
 	wake_up(&iforce->wait);
 }
 
@@ -125,7 +124,6 @@ static void iforce_usb_ctrl(struct urb *urb, struct pt_regs *regs)
 	struct iforce *iforce = urb->context;
 	if (urb->status) return;
 	iforce->ecmd = 0xff00 | urb->actual_length;
-	if (waitqueue_active(&iforce->wait))
 	wake_up(&iforce->wait);
 }
 

drivers/input/keyboard/Kconfig

@@ -13,7 +13,8 @@ config INPUT_KEYBOARD
 
 config KEYBOARD_ATKBD
 	tristate "AT keyboard support" if EMBEDDED || !X86 
-	default y
+	default y if INPUT=y && INPUT_KEYBOARD=y && SERIO=y
+	default m
 	depends on INPUT && INPUT_KEYBOARD && SERIO
 	help
 	  Say Y here if you want to use a standard AT or PS/2 keyboard. Usually

drivers/input/keyboard/atkbd.c

@@ -18,6 +18,7 @@
 #include <linux/input.h>
 #include <linux/serio.h>
 #include <linux/workqueue.h>
+#include <linux/timer.h>
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
 MODULE_DESCRIPTION("AT and PS/2 keyboard driver");
@@ -40,8 +41,8 @@ static int atkbd_reset = 1;
 static unsigned char atkbd_set2_keycode[512] = {
 	  0, 67, 65, 63, 61, 59, 60, 88,  0, 68, 66, 64, 62, 15, 41, 85,
 	  0, 56, 42,182, 29, 16,  2, 89,  0,  0, 44, 31, 30, 17,  3, 90,
-	  0, 46, 45, 32, 18,  5,  4, 91,  0, 57, 47, 33, 20, 19,  6,  0,
-	  0, 49, 48, 35, 34, 21,  7,  0,  0,  0, 50, 36, 22,  8,  9,  0,
+	  0, 46, 45, 32, 18,  5,  4, 91, 90, 57, 47, 33, 20, 19,  6,  0,
+	 91, 49, 48, 35, 34, 21,  7,  0,  0,  0, 50, 36, 22,  8,  9,  0,
 	  0, 51, 37, 23, 24, 11, 10,  0,  0, 52, 53, 38, 39, 25, 12,  0,
 	122, 89, 40,120, 26, 13,  0,  0, 58, 54, 28, 27,  0, 43,  0,  0,
 	 85, 86, 90, 91, 92, 93, 14, 94, 95, 79,183, 75, 71,121,  0,123,
@@ -87,10 +88,10 @@ static unsigned char atkbd_set3_keycode[512] = {
 #define ATKBD_CMD_GSCANSET	0x11f0
 #define ATKBD_CMD_SSCANSET	0x10f0
 #define ATKBD_CMD_GETID		0x02f2
+#define ATKBD_CMD_SETREP	0x10f3
 #define ATKBD_CMD_ENABLE	0x00f4
 #define ATKBD_CMD_RESET_DIS	0x00f5
 #define ATKBD_CMD_RESET_BAT	0x02ff
-#define ATKBD_CMD_SETALL_MB	0x00f8
 #define ATKBD_CMD_RESEND	0x00fe
 #define ATKBD_CMD_EX_ENABLE	0x10ea
 #define ATKBD_CMD_EX_SETLEDS	0x20eb
@@ -114,12 +115,14 @@ struct atkbd {
 	unsigned char keycode[512];
 	struct input_dev dev;
 	struct serio *serio;
+	struct timer_list timer;
 	char name[64];
 	char phys[32];
 	unsigned char cmdbuf[4];
 	unsigned char cmdcnt;
 	unsigned char set;
 	unsigned char release;
+	int lastkey;
 	volatile signed char ack;
 	unsigned char emul;
 	unsigned short id;
@@ -142,6 +145,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 	printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
 #endif
 
+#if !defined(__i386__) && !defined (__x86_64__)
 	if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
 		printk("atkbd.c: frame/parity error: %02x\n", flags);
 		serio_write(serio, ATKBD_CMD_RESEND);
@@ -151,6 +155,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 	
 	if (!flags)
 		atkbd->resend = 0;
+#endif
 
 	switch (code) {
 		case ATKBD_RET_ACK:
@@ -195,6 +200,14 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 				atkbd->set, code, serio->phys, atkbd->release ? "released" : "pressed");
 			break;
 		default:
+
+			if (!atkbd->release) {
+				mod_timer(&atkbd->timer,
+					jiffies + (test_bit(atkbd->keycode[code],
+						&atkbd->dev.key) ? HZ/33 : HZ/4) + HZ/100);
+				atkbd->lastkey = atkbd->keycode[code];
+			}
+
 			input_regs(&atkbd->dev, regs);
 			input_report_key(&atkbd->dev, atkbd->keycode[code], !atkbd->release);
 			input_sync(&atkbd->dev);
@@ -205,6 +218,13 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 	return IRQ_HANDLED;
 }
 
+static void atkbd_force_key_up(unsigned long data)
+{
+	struct atkbd *atkbd = (void *) data;
+	input_report_key(&atkbd->dev, atkbd->lastkey, 0);
+	input_sync(&atkbd->dev);
+}
+
 /*
  * atkbd_sendbyte() sends a byte to the keyboard, and waits for
  * acknowledge. It doesn't handle resends according to the keyboard
@@ -214,7 +234,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 
 static int atkbd_sendbyte(struct atkbd *atkbd, unsigned char byte)
 {
-	int timeout = 10000; /* 100 msec */
+	int timeout = 20000; /* 200 msec */
 	atkbd->ack = 0;
 
 #ifdef ATKBD_DEBUG
@@ -322,13 +342,50 @@ static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int co
 }
 
 /*
- * Enable keyboard.
+ * atkbd_probe() probes for an AT keyboard on a serio port.
  */
-static void atkbd_enable(struct atkbd *atkbd)
+
+static int atkbd_probe(struct atkbd *atkbd)
 {
-	if (atkbd_command(atkbd, NULL, ATKBD_CMD_ENABLE))
-		printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
-		       atkbd->serio->phys);
+	unsigned char param[2];
+
+/*
+ * Some systems, where the bit-twiddling when testing the io-lines of the
+ * controller may confuse the keyboard need a full reset of the keyboard. On
+ * these systems the BIOS also usually doesn't do it for us.
+ */
+
+	if (atkbd_reset)
+		if (atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_BAT)) 
+			printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", atkbd->serio->phys);
+
+/*
+ * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
+ * Some keyboards report different values, but the first byte is always 0xab or
+ * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
+ * should make sure we don't try to set the LEDs on it.
+ */
+
+	if (atkbd_command(atkbd, param, ATKBD_CMD_GETID)) {
+
+/*
+ * If the get ID command failed, we check if we can at least set the LEDs on
+ * the keyboard. This should work on every keyboard out there. It also turns
+ * the LEDs off, which we want anyway.
+ */
+		param[0] = 0;
+		if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
+			return -1;
+		atkbd->id = 0xabba;
+		return 0;
+	}
+
+	if (param[0] != 0xab && param[0] != 0xac)
+		return -1;
+	atkbd->id = (param[0] << 8) | param[1];
+
+
+	return 0;
 }
 
 /*
@@ -365,102 +422,56 @@ static int atkbd_set_3(struct atkbd *atkbd)
 			return 4;
 	}
 
-/*
- * Try to set the set we want.
- */
+	if (atkbd_set != 3) 
+		return 2;
 
-	param[0] = atkbd_set;
+	param[0] = 3;
 	if (atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET))
 		return 2;
 
-/*
- * Read set number. Beware here. Some keyboards always send '2'
- * or some other number regardless into what mode they have been
- * attempted to be set. Other keyboards treat the '0' command as
- * 'set to set 0', and not 'report current set' as they should.
- * In that case we time out, and return 2.
- */
-
 	param[0] = 0;
 	if (atkbd_command(atkbd, param, ATKBD_CMD_GSCANSET))
 		return 2;
 
-/*
- * Here we return the set number the keyboard reports about
- * itself.
- */
+	if (param[0] != 3)
+		return 2;
 
-	return (param[0] == 3) ? 3 : 2;
+	return 3;
 }
 
-/*
- * atkbd_probe() probes for an AT keyboard on a serio port.
- */
-
-static int atkbd_probe(struct atkbd *atkbd)
+static int atkbd_enable(struct atkbd *atkbd)
 {
-	unsigned char param[2];
+	unsigned char param[1];
 
 /*
- * Some systems, where the bit-twiddling when testing the io-lines of the
- * controller may confuse the keyboard need a full reset of the keyboard. On
- * these systems the BIOS also usually doesn't do it for us.
+ * Set the LEDs to a defined state.
  */
 
-	if (atkbd_reset)
-		if (atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_BAT)) 
-			printk(KERN_WARNING
-			       "atkbd.c: keyboard reset failed on %s\n",
-			       atkbd->serio->phys);
+	param[0] = 0;
+	if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
+		return -1;
 
 /*
- * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
- * Some keyboards report different values, but the first byte is always 0xab or
- * 0xac. Some old AT keyboards don't report anything.
+ * Set autorepeat to fastest possible.
  */
 
-	if (atkbd_command(atkbd, param, ATKBD_CMD_GETID)) {
-
-/*
- * If the get ID command failed, we check if we can at least set the LEDs on
- * the keyboard. This should work on every keyboard out there. It also turns
- * the LEDs off, which we want anyway.
- */
 	param[0] = 0;
-		if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
-			return -1;
-		atkbd->id = 0xabba;
-		return 0;
-	}
-
-	if (param[0] != 0xab && param[0] != 0xac)
+	if (atkbd_command(atkbd, param, ATKBD_CMD_SETREP))
 		return -1;
-	atkbd->id = (param[0] << 8) | param[1];
 
 /*
- * Set the LEDs to a defined state.
+ * Enable the keyboard to receive keystrokes.
  */
 
-	param[0] = 0;
-	if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
+	if (atkbd_command(atkbd, NULL, ATKBD_CMD_ENABLE)) {
+		printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
+			atkbd->serio->phys);
 		return -1;
+	}
 
 	return 0;
 }
 
-/*
- * Disable autorepeat. We don't need it, as we do it in software anyway,
- * because that way can get faster repeat, and have less system load (less
- * accesses to the slow ISA hardware). If this fails, we don't care, and will
- * just ignore the repeated keys.
- *
- * This command is for scancode set 3 only.
- */
-static void atkbd_disable_autorepeat(struct atkbd *atkbd)
-{
-	atkbd_command(atkbd, NULL, ATKBD_CMD_SETALL_MB);
-}
-
 /*
  * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
  * reboot.
@@ -485,7 +496,7 @@ static void atkbd_disconnect(struct serio *serio)
 }
 
 /*
- * atkbd_connect() is called when the serio module finds an interface
+ * atkbd_connect() is called when the serio module finds and interface
  * that isn't handled yet by an appropriate device driver. We check if
  * there is an AT keyboard out there and if yes, we register ourselves
  * to the input module.
@@ -513,6 +524,9 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 		atkbd->dev.ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
 	} else  atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 
+	atkbd->dev.rep[REP_DELAY] = HZ/4 + HZ/50;
+	atkbd->dev.rep[REP_PERIOD] = HZ/33;
+
 	atkbd->serio = serio;
 
 	init_input_dev(&atkbd->dev);
@@ -525,6 +539,10 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = atkbd;
 
+	init_timer(&atkbd->timer);
+	atkbd->timer.data = (long) atkbd;
+	atkbd->timer.function = atkbd_force_key_up;
+
 	if (serio_open(serio, dev)) {
 		kfree(atkbd);
 		return;
@@ -539,9 +557,8 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 		}
 		
 		atkbd->set = atkbd_set_3(atkbd);
-		if (atkbd->set == 3)
-			atkbd_disable_autorepeat(atkbd);
 		atkbd_enable(atkbd);
+
 	} else {
 		atkbd->set = 2;
 		atkbd->id = 0xab00;

drivers/input/mouse/Kconfig

@@ -19,9 +19,7 @@ config MOUSE_PS2
 	  Say Y here if you have a PS/2 mouse connected to your system. This
 	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
 	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
-	  compatible. Support for Synaptics TouchPads is also included.
-	  For Synaptics TouchPad support in XFree86 you'll need this XFree86
-	  driver: http://w1.894.telia.com/~u89404340/touchpad/index.html
+	  compatible.
 
 	  If unsure, say Y.
 
@@ -30,6 +28,22 @@ config MOUSE_PS2
 	  The module will be called psmouse. If you want to compile it as a
 	  module, say M here and read <file:Documentation/modules.txt>.
 
+config MOUSE_PS2_SYNAPTICS
+	bool "Synaptics TouchPad"
+	default n
+	depends on INPUT && INPUT_MOUSE && SERIO && MOUSE_PS2
+	---help---
+	  Say Y here if you have a Synaptics TouchPad connected to your system.
+	  This touchpad is found on many modern laptop computers.
+
+	  Note that you also need a user space driver to interpret the data
+	  generated by the kernel. A compatible driver for XFree86 is available
+	  from http://w1.894.telia.com/~u89404340/touchpad/index.html
+
+	  The gpm program is not yet able to interpret the data from this
+	  driver, so if you need to use the touchpad in the console, you have to
+	  say N for now.
+
 config MOUSE_SERIAL
 	tristate "Serial mouse"
 	depends on INPUT && INPUT_MOUSE && SERIO

drivers/input/mouse/psmouse-base.c

@@ -17,6 +17,7 @@
 #include <linux/input.h>
 #include <linux/serio.h>
 #include <linux/init.h>
+#include <linux/pm.h>
 #include "psmouse.h"
 #include "synaptics.h"
 #include "logips2pp.h"
@@ -29,6 +30,8 @@ MODULE_PARM(psmouse_resolution, "i");
 MODULE_PARM_DESC(psmouse_resolution, "Resolution, in dpi.");
 MODULE_PARM(psmouse_smartscroll, "i");
 MODULE_PARM_DESC(psmouse_smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
+MODULE_PARM(psmouse_resetafter, "i");
+MODULE_PARM_DESC(psmouse_resetafter, "Reset Synaptics Touchpad after so many bad packets (0 = never).");
 MODULE_LICENSE("GPL");
 
 #define PSMOUSE_LOGITECH_SMARTSCROLL	1
@@ -36,11 +39,12 @@ MODULE_LICENSE("GPL");
 static int psmouse_noext;
 int psmouse_resolution;
 int psmouse_smartscroll = PSMOUSE_LOGITECH_SMARTSCROLL;
+unsigned int psmouse_resetafter;
 
-static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "Synaptics"};
+static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2"};
 
 /*
- * psmouse_process_packet() anlyzes the PS/2 mouse packet contents and
+ * psmouse_process_packet() analyzes the PS/2 mouse packet contents and
  * reports relevant events to the input module.
  */
 
@@ -108,6 +112,9 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 {
 	struct psmouse *psmouse = serio->private;
 
+	if (psmouse->state == PSMOUSE_IGNORE)
+		goto out;
+
 	if (psmouse->acking) {
 		switch (data) {
 			case PSMOUSE_RET_ACK:
@@ -132,20 +139,35 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 	}
 
 	if (psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
-		printk(KERN_WARNING "psmouse.c: Lost synchronization, throwing %d bytes away.\n", psmouse->pktcnt);
+		printk(KERN_WARNING "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n",
+		       psmouse->name, psmouse->phys, psmouse->pktcnt);
 		psmouse->pktcnt = 0;
 	}
 	
 	psmouse->last = jiffies;
 	psmouse->packet[psmouse->pktcnt++] = data;
 
-	if (psmouse->pktcnt == 3 + (psmouse->type >= PSMOUSE_GENPS)) {
-		psmouse_process_packet(psmouse, regs);
+	if (psmouse->packet[0] == PSMOUSE_RET_BAT) {
+		if (psmouse->pktcnt == 1)
+			goto out;
+		
+		if (psmouse->pktcnt == 2) {
+			if (psmouse->packet[1] == PSMOUSE_RET_ID) {
+				psmouse->state = PSMOUSE_IGNORE;
+				serio_rescan(serio);
+				goto out;
+			}
+			if (psmouse->type == PSMOUSE_SYNAPTICS) {
+				/* neither 0xAA nor 0x00 are valid first bytes
+				 * for a packet in absolute mode
+				 */
 				psmouse->pktcnt = 0;
 				goto out;
 			}
+		}
+	}
 
-	if (psmouse->pktcnt == 1 && psmouse->type == PSMOUSE_SYNAPTICS) {
+	if (psmouse->type == PSMOUSE_SYNAPTICS) {
 		/*
 		 * The synaptics driver has its own resync logic,
 		 * so it needs to receive all bytes one at a time.
@@ -155,8 +177,9 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		goto out;
 	}
 
-	if (psmouse->pktcnt == 1 && psmouse->packet[0] == PSMOUSE_RET_BAT) {
-		serio_rescan(serio);
+	if (psmouse->pktcnt == 3 + (psmouse->type >= PSMOUSE_GENPS)) {
+		psmouse_process_packet(psmouse, regs);
+		psmouse->pktcnt = 0;
 		goto out;
 	}
 out:
@@ -200,7 +223,7 @@ int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command)
 	psmouse->cmdcnt = receive;
 
 	if (command == PSMOUSE_CMD_RESET_BAT)
-                timeout = 2000000; /* 2 sec */
+                timeout = 4000000; /* 4 sec */
 
 	if (command & 0xff)
 		if (psmouse_sendbyte(psmouse, command & 0xff))
@@ -450,14 +473,18 @@ static void psmouse_initialize(struct psmouse *psmouse)
  */
 
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETSTREAM);
+}
 
 /*
- * Last, we enable the mouse so that we get reports from it.
+ * psmouse_activate() enables the mouse so that we get motion reports from it.
  */
 
+static void psmouse_activate(struct psmouse *psmouse)
+{
 	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_ENABLE))
 		printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n", psmouse->serio->phys);
 
+	psmouse->state = PSMOUSE_ACTIVATED;
 }
 
 /*
@@ -478,12 +505,38 @@ static void psmouse_cleanup(struct serio *serio)
 static void psmouse_disconnect(struct serio *serio)
 {
 	struct psmouse *psmouse = serio->private;
+
+	psmouse->state = PSMOUSE_IGNORE;
+	synaptics_disconnect(psmouse);
 	input_unregister_device(&psmouse->dev);
 	serio_close(serio);
-	synaptics_disconnect(psmouse);
 	kfree(psmouse);
 }
 
+/*
+ * Reinitialize mouse hardware after software suspend.
+ */
+
+static int psmouse_pm_callback(struct pm_dev *dev, pm_request_t request, void *data)
+{
+	struct psmouse *psmouse = dev->data;
+	struct serio_dev *ser_dev = psmouse->serio->dev;
+
+	synaptics_disconnect(psmouse);
+
+	/* We need to reopen the serio port to reinitialize the i8042 controller */
+	serio_close(psmouse->serio);
+	serio_open(psmouse->serio, ser_dev);
+
+	/* Probe and re-initialize the mouse */
+	psmouse_probe(psmouse);
+	psmouse_initialize(psmouse);
+	synaptics_pt_init(psmouse);
+	psmouse_activate(psmouse);
+
+	return 0;
+}
+
 /*
  * psmouse_connect() is a callback from the serio module when
  * an unhandled serio port is found.
@@ -492,8 +545,10 @@ static void psmouse_disconnect(struct serio *serio)
 static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 {
 	struct psmouse *psmouse;
+	struct pm_dev *pmdev;
 	
-	if ((serio->type & SERIO_TYPE) != SERIO_8042)
+	if ((serio->type & SERIO_TYPE) != SERIO_8042 &&
+	    (serio->type & SERIO_TYPE) != SERIO_PS_PSTHRU)
 		return;
 
 	if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL)))
@@ -506,6 +561,7 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 	psmouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
 	psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
 
+	psmouse->state = PSMOUSE_NEW_DEVICE;
 	psmouse->serio = serio;
 	psmouse->dev.private = psmouse;
 
@@ -522,6 +578,12 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 		return;
 	}
 	
+	pmdev = pm_register(PM_SYS_DEV, PM_SYS_UNKNOWN, psmouse_pm_callback);
+	if (pmdev) {
+		psmouse->dev.pm_dev = pmdev;
+		pmdev->data = psmouse;
+	}
+
 	sprintf(psmouse->devname, "%s %s %s",
 		psmouse_protocols[psmouse->type], psmouse->vendor, psmouse->name);
 	sprintf(psmouse->phys, "%s/input0",
@@ -539,6 +601,10 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 	printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
 
 	psmouse_initialize(psmouse);
+
+	synaptics_pt_init(psmouse);
+
+	psmouse_activate(psmouse);
 }
 
 static struct serio_dev psmouse_dev = {
@@ -567,9 +633,16 @@ static int __init psmouse_smartscroll_setup(char *str)
 	return 1;
 }
 
+static int __init psmouse_resetafter_setup(char *str)
+{
+	get_option(&str, &psmouse_resetafter);
+	return 1;
+}
+
 __setup("psmouse_noext", psmouse_noext_setup);
 __setup("psmouse_resolution=", psmouse_resolution_setup);
 __setup("psmouse_smartscroll=", psmouse_smartscroll_setup);
+__setup("psmouse_resetafter=", psmouse_resetafter_setup);
 
 #endif
 

drivers/input/mouse/psmouse.h

@@ -13,9 +13,15 @@
 #define PSMOUSE_CMD_RESET_BAT	0x02ff
 
 #define PSMOUSE_RET_BAT		0xaa
+#define PSMOUSE_RET_ID		0x00
 #define PSMOUSE_RET_ACK		0xfa
 #define PSMOUSE_RET_NAK		0xfe
 
+/* psmouse states */
+#define PSMOUSE_NEW_DEVICE	0
+#define PSMOUSE_ACTIVATED	1
+#define PSMOUSE_IGNORE		2
+
 struct psmouse {
 	void *private;
 	struct input_dev dev;
@@ -29,6 +35,7 @@ struct psmouse {
 	unsigned char type;
 	unsigned char model;
 	unsigned long last;
+	unsigned char state;
 	char acking;
 	volatile char ack;
 	char error;
@@ -47,5 +54,6 @@ struct psmouse {
 int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command);
 
 extern int psmouse_smartscroll;
+extern unsigned int psmouse_resetafter;
 
 #endif /* _PSMOUSE_H */

drivers/input/mouse/synaptics.c

 /*
  * Synaptics TouchPad PS/2 mouse driver
  *
+ *   2003 Dmitry Torokhov <dtor@mail.ru>
+ *     Added support for pass-through port
+ *
  *   2003 Peter Osterlund <petero2@telia.com>
  *     Ported to 2.5 input device infrastructure.
  *
@@ -21,6 +24,7 @@
 
 #include <linux/module.h>
 #include <linux/input.h>
+#include <linux/serio.h>
 #include "psmouse.h"
 #include "synaptics.h"
 
@@ -71,7 +75,7 @@ static int synaptics_set_mode(struct psmouse *psmouse, unsigned char mode)
 
 	if (synaptics_special_cmd(psmouse, mode))
 		return -1;
-	param[0] = 0x14;
+	param[0] = SYN_PS_SET_MODE2;
 	if (psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE))
 		return -1;
 	return 0;
@@ -83,7 +87,7 @@ static int synaptics_reset(struct psmouse *psmouse)
 
 	if (psmouse_command(psmouse, r, PSMOUSE_CMD_RESET_BAT))
 		return -1;
-	if (r[0] == 0xAA && r[1] == 0x00)
+	if (r[0] == PSMOUSE_RET_BAT && r[1] == PSMOUSE_RET_ID)
 		return 0;
 	return -1;
 }
@@ -106,16 +110,25 @@ static int synaptics_model_id(struct psmouse *psmouse, unsigned long int *model_
  * Read the capability-bits from the touchpad
  * see also the SYN_CAP_* macros
  */
-static int synaptics_capability(struct psmouse *psmouse, unsigned long int *capability)
+static int synaptics_capability(struct psmouse *psmouse, unsigned long int *capability, unsigned long int *ext_cap)
 {
 	unsigned char cap[3];
 
 	if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
 		return -1;
 	*capability = (cap[0]<<16) | (cap[1]<<8) | cap[2];
-	if (SYN_CAP_VALID(*capability))
-		return 0;
+	*ext_cap = 0;
+	if (!SYN_CAP_VALID(*capability))
 		return -1;
+
+	if (SYN_EXT_CAP_REQUESTS(*capability)) {
+		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
+			printk(KERN_ERR "Synaptics claims to have extended capabilities,"
+			       " but I'm not able to read them.");
+		} else
+			*ext_cap = (cap[0]<<16) | (cap[1]<<8) | cap[2];
+	}
+	return 0;
 }
 
 /*
@@ -134,19 +147,11 @@ static int synaptics_identify(struct psmouse *psmouse, unsigned long int *ident)
 	return -1;
 }
 
-static int synaptics_enable_device(struct psmouse *psmouse)
-{
-	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_ENABLE))
-		return -1;
-	return 0;
-}
-
 static void print_ident(struct synaptics_data *priv)
 {
 	printk(KERN_INFO "Synaptics Touchpad, model: %ld\n", SYN_ID_MODEL(priv->identity));
-	printk(KERN_INFO " Firware: %ld.%ld\n", SYN_ID_MAJOR(priv->identity),
+	printk(KERN_INFO " Firmware: %ld.%ld\n", SYN_ID_MAJOR(priv->identity),
 	       SYN_ID_MINOR(priv->identity));
-
 	if (SYN_MODEL_ROT180(priv->model_id))
 		printk(KERN_INFO " 180 degree mounted touchpad\n");
 	if (SYN_MODEL_PORTRAIT(priv->model_id))
@@ -159,12 +164,17 @@ static void print_ident(struct synaptics_data *priv)
 
 	if (SYN_CAP_EXTENDED(priv->capabilities)) {
 		printk(KERN_INFO " Touchpad has extended capability bits\n");
-		if (SYN_CAP_FOUR_BUTTON(priv->capabilities))
+		if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
+			printk(KERN_INFO " -> %d multi-buttons, i.e. besides standard buttons\n",
+			       (int)(SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)));
+		else if (SYN_CAP_FOUR_BUTTON(priv->capabilities))
 			printk(KERN_INFO " -> four buttons\n");
 		if (SYN_CAP_MULTIFINGER(priv->capabilities))
 			printk(KERN_INFO " -> multifinger detection\n");
 		if (SYN_CAP_PALMDETECT(priv->capabilities))
 			printk(KERN_INFO " -> palm detection\n");
+		if (SYN_CAP_PASS_THROUGH(priv->capabilities))
+			printk(KERN_INFO " -> pass-through port\n");
 	}
 }
 
@@ -172,6 +182,7 @@ static int query_hardware(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 	int retries = 0;
+	int mode;
 
 	while ((retries++ < 3) && synaptics_reset(psmouse))
 		printk(KERN_ERR "synaptics reset failed\n");
@@ -180,17 +191,107 @@ static int query_hardware(struct psmouse *psmouse)
 		return -1;
 	if (synaptics_model_id(psmouse, &priv->model_id))
 		return -1;
-	if (synaptics_capability(psmouse, &priv->capabilities))
+	if (synaptics_capability(psmouse, &priv->capabilities, &priv->ext_cap))
+		return -1;
+
+	mode = SYN_BIT_ABSOLUTE_MODE | SYN_BIT_HIGH_RATE;
+	if (SYN_ID_MAJOR(priv->identity) >= 4)
+		mode |= SYN_BIT_DISABLE_GESTURE;
+	if (SYN_CAP_EXTENDED(priv->capabilities))
+		mode |= SYN_BIT_W_MODE;
+	if (synaptics_set_mode(psmouse, mode))
 		return -1;
+
+	return 0;
+}
+
+/*****************************************************************************
+ *	Synaptics pass-through PS/2 port support
+ ****************************************************************************/
+static int synaptics_pt_open(struct serio *port)
+{
+	return 0;
+}
+
+static void synaptics_pt_close(struct serio *port)
+{
+}
+
+static int synaptics_pt_write(struct serio *port, unsigned char c)
+{
+	struct psmouse *parent = port->driver;
+	char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
+
+	if (synaptics_special_cmd(parent, c))
+		return -1;
+	if (psmouse_command(parent, &rate_param, PSMOUSE_CMD_SETRATE))
+		return -1;
+	return 0;
+}
+
+static inline int synaptics_is_pt_packet(unsigned char *buf)
+{
+	return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
+}
+
+static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
+{
+	struct psmouse *child = ptport->private;
+
+	if (child) {
+		if (child->state == PSMOUSE_ACTIVATED) {
+			serio_interrupt(ptport, packet[1], 0, NULL);
+			serio_interrupt(ptport, packet[4], 0, NULL);
+			serio_interrupt(ptport, packet[5], 0, NULL);
+			if (child->type >= PSMOUSE_GENPS)
+				serio_interrupt(ptport, packet[2], 0, NULL);
+		} else if (child->state != PSMOUSE_IGNORE) {
+			serio_interrupt(ptport, packet[1], 0, NULL);
+		}
+	}
+}
+
+int synaptics_pt_init(struct psmouse *psmouse)
+{
+	struct synaptics_data *priv = psmouse->private;
+	struct serio *port;
+	struct psmouse *child;
+
+	if (psmouse->type != PSMOUSE_SYNAPTICS)
+		return -1;
+	if (!SYN_CAP_EXTENDED(priv->capabilities))
+		return -1;
+	if (!SYN_CAP_PASS_THROUGH(priv->capabilities))
+		return -1;
+
+	priv->ptport = port = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!port) {
+		printk(KERN_ERR "synaptics: not enough memory to allocate serio port\n");
+		return -1;
+	}
+
+	memset(port, 0, sizeof(struct serio));
+	port->type = SERIO_PS_PSTHRU;
+	port->name = "Synaptics pass-through";
+	port->phys = "synaptics-pt/serio0";
+	port->write = synaptics_pt_write;
+	port->open = synaptics_pt_open;
+	port->close = synaptics_pt_close;
+	port->driver = psmouse;
+
+	printk(KERN_INFO "serio: %s port at %s\n", port->name, psmouse->phys);
+	serio_register_slave_port(port);
+
+	/* adjust the touchpad to child's choice of protocol */
+	child = port->private;
+	if (child && child->type >= PSMOUSE_GENPS) {
 		if (synaptics_set_mode(psmouse, (SYN_BIT_ABSOLUTE_MODE |
 					 	 SYN_BIT_HIGH_RATE |
 					 	 SYN_BIT_DISABLE_GESTURE |
+						 SYN_BIT_FOUR_BYTE_CLIENT |
 					 	 SYN_BIT_W_MODE)))
-		return -1;
-
-	synaptics_enable_device(psmouse);
-
-	print_ident(priv);
+			printk(KERN_INFO "synaptics: failed to enable 4-byte guest protocol\n");
+	}
 
 	return 0;
 }
@@ -213,22 +314,27 @@ int synaptics_init(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv;
 
+#ifndef CONFIG_MOUSE_PS2_SYNAPTICS
+	return -1;
+#endif
 	psmouse->private = priv = kmalloc(sizeof(struct synaptics_data), GFP_KERNEL);
 	if (!priv)
 		return -1;
 	memset(priv, 0, sizeof(struct synaptics_data));
 
-	priv->inSync = 1;
+	priv->out_of_sync = 0;
 
 	if (query_hardware(psmouse)) {
 		printk(KERN_ERR "Unable to query/initialize Synaptics hardware.\n");
 		goto init_fail;
 	}
 
+	print_ident(priv);
+
 	/*
 	 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
 	 * which says that they should be valid regardless of the actual size of
-	 * the senser.
+	 * the sensor.
 	 */
 	set_bit(EV_ABS, psmouse->dev.evbit);
 	set_abs_params(&psmouse->dev, ABS_X, 1472, 5472, 0, 0);
@@ -243,7 +349,24 @@ int synaptics_init(struct psmouse *psmouse)
 	set_bit(BTN_RIGHT, psmouse->dev.keybit);
 	set_bit(BTN_FORWARD, psmouse->dev.keybit);
 	set_bit(BTN_BACK, psmouse->dev.keybit);
-
+	if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
+		switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
+		default:
+			printk(KERN_ERR "This touchpad reports more than 8 multi-buttons, don't know how to handle.\n");
+		case 8:
+			set_bit(BTN_7, psmouse->dev.keybit);
+			set_bit(BTN_6, psmouse->dev.keybit);
+		case 6:
+			set_bit(BTN_5, psmouse->dev.keybit);
+			set_bit(BTN_4, psmouse->dev.keybit);
+		case 4:
+			set_bit(BTN_3, psmouse->dev.keybit);
+			set_bit(BTN_2, psmouse->dev.keybit);
+		case 2:
+			set_bit(BTN_1, psmouse->dev.keybit);
+			set_bit(BTN_0, psmouse->dev.keybit);
+			break;
+		}
 	clear_bit(EV_REL, psmouse->dev.evbit);
 	clear_bit(REL_X, psmouse->dev.relbit);
 	clear_bit(REL_Y, psmouse->dev.relbit);
@@ -259,17 +382,34 @@ void synaptics_disconnect(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 
+	if (psmouse->type == PSMOUSE_SYNAPTICS && priv) {
+		synaptics_set_mode(psmouse, 0);
+		if (priv->ptport) {
+			serio_unregister_slave_port(priv->ptport);
+			kfree(priv->ptport);
+		}
 		kfree(priv);
+	}
 }
 
 /*****************************************************************************
  *	Functions to interpret the absolute mode packets
  ****************************************************************************/
 
-static void synaptics_parse_hw_state(struct synaptics_data *priv, struct synaptics_hw_state *hw)
+static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw)
 {
-	unsigned char *buf = priv->proto_buf;
-
+	hw->up    = 0;
+	hw->down  = 0;
+	hw->b0    = 0;
+	hw->b1    = 0;
+	hw->b2    = 0;
+	hw->b3    = 0;
+	hw->b4    = 0;
+	hw->b5    = 0;
+	hw->b6    = 0;
+	hw->b7    = 0;
+
+	if (SYN_MODEL_NEWABS(priv->model_id)) {
 		hw->x = (((buf[3] & 0x10) << 8) |
 			 ((buf[1] & 0x0f) << 8) |
 			 buf[4]);
@@ -283,10 +423,7 @@ static void synaptics_parse_hw_state(struct synaptics_data *priv, struct synapti
 			 ((buf[3] & 0x04) >> 2));
 
 		hw->left  = (buf[0] & 0x01) ? 1 : 0;
-	hw->right = (buf[0] & 0x2) ? 1 : 0;
-	hw->up    = 0;
-	hw->down  = 0;
-
+		hw->right = (buf[0] & 0x02) ? 1 : 0;
 		if (SYN_CAP_EXTENDED(priv->capabilities) &&
 		    (SYN_CAP_FOUR_BUTTON(priv->capabilities))) {
 			hw->up = ((buf[3] & 0x01)) ? 1 : 0;
@@ -296,6 +433,35 @@ static void synaptics_parse_hw_state(struct synaptics_data *priv, struct synapti
 			if (hw->right)
 				hw->down = !hw->down;
 		}
+		if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
+		    ((buf[3] & 2) ? !hw->right : hw->right)) {
+			switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
+			default:
+				; /* we did comment while initialising... */
+			case 8:
+				hw->b7 = ((buf[5] & 0x08)) ? 1 : 0;
+				hw->b6 = ((buf[4] & 0x08)) ? 1 : 0;
+			case 6:
+				hw->b5 = ((buf[5] & 0x04)) ? 1 : 0;
+				hw->b4 = ((buf[4] & 0x04)) ? 1 : 0;
+			case 4:
+				hw->b3 = ((buf[5] & 0x02)) ? 1 : 0;
+				hw->b2 = ((buf[4] & 0x02)) ? 1 : 0;
+			case 2:
+				hw->b1 = ((buf[5] & 0x01)) ? 1 : 0;
+				hw->b0 = ((buf[4] & 0x01)) ? 1 : 0;
+			}
+		}
+	} else {
+		hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
+		hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
+
+		hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
+		hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
+
+		hw->left  = (buf[0] & 0x01) ? 1 : 0;
+		hw->right = (buf[0] & 0x02) ? 1 : 0;
+	}
 }
 
 /*
@@ -307,7 +473,7 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 	struct synaptics_data *priv = psmouse->private;
 	struct synaptics_hw_state hw;
 
-	synaptics_parse_hw_state(priv, &hw);
+	synaptics_parse_hw_state(psmouse->packet, priv, &hw);
 
 	if (hw.z > 0) {
 		int w_ok = 0;
@@ -347,7 +513,24 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 	input_report_key(dev, BTN_RIGHT,   hw.right);
 	input_report_key(dev, BTN_FORWARD, hw.up);
 	input_report_key(dev, BTN_BACK,    hw.down);
-
+	if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
+		switch(SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
+		default:
+			; /* we did comment while initialising... */
+		case 8:
+			input_report_key(dev, BTN_7,       hw.b7);
+			input_report_key(dev, BTN_6,       hw.b6);
+		case 6:
+			input_report_key(dev, BTN_5,       hw.b5);
+			input_report_key(dev, BTN_4,       hw.b4);
+		case 4:
+			input_report_key(dev, BTN_3,       hw.b3);
+			input_report_key(dev, BTN_2,       hw.b2);
+		case 2:
+			input_report_key(dev, BTN_1,       hw.b1);
+			input_report_key(dev, BTN_0,       hw.b0);
+			break;
+		}
 	input_sync(dev);
 }
 
@@ -355,35 +538,59 @@ void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
 {
 	struct input_dev *dev = &psmouse->dev;
 	struct synaptics_data *priv = psmouse->private;
-	unsigned char *pBuf = priv->proto_buf;
-	unsigned char u = psmouse->packet[0];
+	unsigned char data = psmouse->packet[psmouse->pktcnt - 1];
+	int newabs = SYN_MODEL_NEWABS(priv->model_id);
 
 	input_regs(dev, regs);
 
-	pBuf[priv->proto_buf_tail++] = u;
-
-	/* check first byte */
-	if ((priv->proto_buf_tail == 1) && ((u & 0xC8) != 0x80)) {
-		priv->inSync = 0;
-		priv->proto_buf_tail = 0;
+	switch (psmouse->pktcnt) {
+	case 1:
+		if (newabs ? ((data & 0xC8) != 0x80) : ((data & 0xC0) != 0xC0)) {
 			printk(KERN_WARNING "Synaptics driver lost sync at 1st byte\n");
-		return;
+			goto bad_sync;
 		}
-
-	/* check 4th byte */
-	if ((priv->proto_buf_tail == 4) && ((u & 0xc8) != 0xc0)) {
-		priv->inSync = 0;
-		priv->proto_buf_tail = 0;
+		break;
+	case 2:
+		if (!newabs && ((data & 0x60) != 0x00)) {
+			printk(KERN_WARNING "Synaptics driver lost sync at 2nd byte\n");
+			goto bad_sync;
+		}
+		break;
+	case 4:
+		if (newabs ? ((data & 0xC8) != 0xC0) : ((data & 0xC0) != 0x80)) {
 			printk(KERN_WARNING "Synaptics driver lost sync at 4th byte\n");
-		return;
+			goto bad_sync;
 		}
-
-	if (priv->proto_buf_tail >= 6) { /* Full packet received */
-		if (!priv->inSync) {
-			priv->inSync = 1;
+		break;
+	case 5:
+		if (!newabs && ((data & 0x60) != 0x00)) {
+			printk(KERN_WARNING "Synaptics driver lost sync at 5th byte\n");
+			goto bad_sync;
+		}
+		break;
+	default:
+		if (psmouse->pktcnt >= 6) { /* Full packet received */
+			if (priv->out_of_sync) {
+				priv->out_of_sync = 0;
 				printk(KERN_NOTICE "Synaptics driver resynced.\n");
 			}
+
+			if (priv->ptport && synaptics_is_pt_packet(psmouse->packet))
+				synaptics_pass_pt_packet(priv->ptport, psmouse->packet);
+			else
 				synaptics_process_packet(psmouse);
-		priv->proto_buf_tail = 0;
+
+			psmouse->pktcnt = 0;
+		}
+		break;
+	}
+	return;
+
+ bad_sync:
+	priv->out_of_sync++;
+	psmouse->pktcnt = 0;
+	if (psmouse_resetafter > 0 && priv->out_of_sync	== psmouse_resetafter) {
+		psmouse->state = PSMOUSE_IGNORE;
+		serio_rescan(psmouse->serio);
 	}
 }

drivers/input/mouse/synaptics.h

@@ -12,6 +12,7 @@
 
 extern void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs);
 extern int synaptics_init(struct psmouse *psmouse);
+extern int synaptics_pt_init(struct psmouse *psmouse);
 extern void synaptics_disconnect(struct psmouse *psmouse);
 
 /* synaptics queries */
@@ -22,12 +23,14 @@ extern void synaptics_disconnect(struct psmouse *psmouse);
 #define SYN_QUE_SERIAL_NUMBER_PREFIX	0x06
 #define SYN_QUE_SERIAL_NUMBER_SUFFIX	0x07
 #define SYN_QUE_RESOLUTION		0x08
+#define SYN_QUE_EXT_CAPAB		0x09
 
 /* synatics modes */
 #define SYN_BIT_ABSOLUTE_MODE		(1 << 7)
 #define SYN_BIT_HIGH_RATE		(1 << 6)
 #define SYN_BIT_SLEEP_MODE		(1 << 3)
 #define SYN_BIT_DISABLE_GESTURE		(1 << 2)
+#define SYN_BIT_FOUR_BYTE_CLIENT	(1 << 1)
 #define SYN_BIT_W_MODE			(1 << 0)
 
 /* synaptics model ID bits */
@@ -42,11 +45,14 @@ extern void synaptics_disconnect(struct psmouse *psmouse);
 
 /* synaptics capability bits */
 #define SYN_CAP_EXTENDED(c)		((c) & (1 << 23))
+#define SYN_CAP_PASS_THROUGH(c)		((c) & (1 << 7))
 #define SYN_CAP_SLEEP(c)		((c) & (1 << 4))
 #define SYN_CAP_FOUR_BUTTON(c)		((c) & (1 << 3))
 #define SYN_CAP_MULTIFINGER(c)		((c) & (1 << 1))
 #define SYN_CAP_PALMDETECT(c)		((c) & (1 << 0))
 #define SYN_CAP_VALID(c)		((((c) & 0x00ff00) >> 8) == 0x47)
+#define SYN_EXT_CAP_REQUESTS(c)		((((c) & 0x700000) >> 20) == 1)
+#define SYN_CAP_MULTI_BUTTON_NO(ec)	(((ec) & 0x00f000) >> 12)
 
 /* synaptics modes query bits */
 #define SYN_MODE_ABSOLUTE(m)		((m) & (1 << 7))
@@ -62,6 +68,10 @@ extern void synaptics_disconnect(struct psmouse *psmouse);
 #define SYN_ID_MINOR(i) 		(((i) >> 16) & 0xff)
 #define SYN_ID_IS_SYNAPTICS(i)		((((i) >> 8) & 0xff) == 0x47)
 
+/* synaptics special commands */
+#define SYN_PS_SET_MODE2		0x14
+#define SYN_PS_CLIENT_CMD		0x28
+
 /*
  * A structure to describe the state of the touchpad hardware (buttons and pad)
  */
@@ -75,21 +85,28 @@ struct synaptics_hw_state {
 	int right;
 	int up;
 	int down;
+	int b0;
+	int b1;
+	int b2;
+	int b3;
+	int b4;
+	int b5;
+	int b6;
+	int b7;
 };
 
 struct synaptics_data {
 	/* Data read from the touchpad */
 	unsigned long int model_id;		/* Model-ID */
 	unsigned long int capabilities; 	/* Capabilities */
+	unsigned long int ext_cap; 		/* Extended Capabilities */
 	unsigned long int identity;		/* Identification */
 
 	/* Data for normal processing */
-	unsigned char proto_buf[6];		/* Buffer for Packet */
-	unsigned char last_byte;		/* last received byte */
-	int inSync;				/* Packets in sync */
-	int proto_buf_tail;
-
+	unsigned int out_of_sync;		/* # of packets out of sync */
 	int old_w;				/* Previous w value */
+	
+	struct serio *ptport;			/* pass-through port */
 };
 
 #endif /* _SYNAPTICS_H */

drivers/input/serio/serio.c

@@ -49,7 +49,9 @@ MODULE_LICENSE("GPL");
 
 EXPORT_SYMBOL(serio_interrupt);
 EXPORT_SYMBOL(serio_register_port);
+EXPORT_SYMBOL(serio_register_slave_port);
 EXPORT_SYMBOL(serio_unregister_port);
+EXPORT_SYMBOL(serio_unregister_slave_port);
 EXPORT_SYMBOL(serio_register_device);
 EXPORT_SYMBOL(serio_unregister_device);
 EXPORT_SYMBOL(serio_open);
@@ -166,6 +168,17 @@ void serio_register_port(struct serio *serio)
 	up(&serio_sem);
 }
 
+/*
+ * Same as serio_register_port but does not try to acquire serio_sem.
+ * Should be used when registering a serio from other input device's
+ * connect() function.
+ */
+void serio_register_slave_port(struct serio *serio)
+{
+	list_add_tail(&serio->node, &serio_list);
+	serio_find_dev(serio);
+}
+
 void serio_unregister_port(struct serio *serio)
 {
 	down(&serio_sem);
@@ -175,6 +188,18 @@ void serio_unregister_port(struct serio *serio)
 	up(&serio_sem);
 }
 
+/*
+ * Same as serio_unregister_port but does not try to acquire serio_sem.
+ * Should be used when unregistering a serio from other input device's
+ * disconnect() function.
+ */
+void serio_unregister_slave_port(struct serio *serio)
+{
+	list_del_init(&serio->node);
+	if (serio->dev && serio->dev->disconnect)
+		serio->dev->disconnect(serio);
+}
+
 void serio_register_device(struct serio_dev *dev)
 {
 	struct serio *serio;
@@ -204,9 +229,11 @@ void serio_unregister_device(struct serio_dev *dev)
 /* called from serio_dev->connect/disconnect methods under serio_sem */
 int serio_open(struct serio *serio, struct serio_dev *dev)
 {
-	if (serio->open(serio))
-		return -1;
 	serio->dev = dev;
+	if (serio->open(serio)) {
+		serio->dev = NULL;
+		return -1;
+	}
 	return 0;
 }
 

include/linux/input.h

@@ -751,7 +751,7 @@ struct ff_effect {
 #define LONG(x) ((x)/BITS_PER_LONG)
 
 #define INPUT_KEYCODE(dev, scancode) ((dev->keycodesize == 1) ? ((u8*)dev->keycode)[scancode] : \
-	((dev->keycodesize == 1) ? ((u16*)dev->keycode)[scancode] : (((u32*)dev->keycode)[scancode])))
+	((dev->keycodesize == 2) ? ((u16*)dev->keycode)[scancode] : (((u32*)dev->keycode)[scancode])))
 
 #define init_input_dev(dev)	do { INIT_LIST_HEAD(&((dev)->h_list)); INIT_LIST_HEAD(&((dev)->node)); } while (0)
 

include/linux/serio.h

@@ -65,7 +65,9 @@ void serio_rescan(struct serio *serio);
 irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs);
 
 void serio_register_port(struct serio *serio);
+void serio_register_slave_port(struct serio *serio);
 void serio_unregister_port(struct serio *serio);
+void serio_unregister_slave_port(struct serio *serio);
 void serio_register_device(struct serio_dev *dev);
 void serio_unregister_device(struct serio_dev *dev);
 
@@ -104,6 +106,7 @@ static __inline__ void serio_cleanup(struct serio *serio)
 #define SERIO_RS232	0x02000000UL
 #define SERIO_HIL_MLC	0x03000000UL
 #define SERIO_PC9800	0x04000000UL
+#define SERIO_PS_PSTHRU	0x05000000UL
 
 #define SERIO_PROTO	0xFFUL
 #define SERIO_MSC	0x01