Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input

12 files changed, 551 insertions, 88 deletions

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 24474335dfd1..2141501e9f2e 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -348,6 +348,40 @@ static int alps_tap_mode(struct psmouse *psmouse, int enable)
 	return 0;
 }
 
+/*
+ * alps_poll() - poll the touchpad for current motion packet.
+ * Used in resync.
+ */
+static int alps_poll(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	unsigned char buf[6];
+	int poll_failed;
+
+	if (priv->i->flags & ALPS_PASS)
+		alps_passthrough_mode(psmouse, 1);
+
+	poll_failed = ps2_command(&psmouse->ps2dev, buf,
+				  PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
+
+	if (priv->i->flags & ALPS_PASS)
+		alps_passthrough_mode(psmouse, 0);
+
+	if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
+		return -1;
+
+	if ((psmouse->badbyte & 0xc8) == 0x08) {
+/*
+ * Poll the track stick ...
+ */
+		if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
+			return -1;
+	}
+
+	memcpy(psmouse->packet, buf, sizeof(buf));
+	return 0;
+}
+
 static int alps_reconnect(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
@@ -451,10 +485,14 @@ int alps_init(struct psmouse *psmouse)
 	input_register_device(priv->dev2);
 
 	psmouse->protocol_handler = alps_process_byte;
+	psmouse->poll = alps_poll;
 	psmouse->disconnect = alps_disconnect;
 	psmouse->reconnect = alps_reconnect;
 	psmouse->pktsize = 6;
 
+	/* We are having trouble resyncing ALPS touchpads so disable it for now */
+	psmouse->resync_time = 0;
+
 	return 0;
 
 init_fail:
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 025a71de5404..c88520d3d13c 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -117,7 +117,7 @@ static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned cha
 	if (psmouse_sliced_command(psmouse, command))
 		return -1;
 
-	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL))
+	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL | 0x0300))
 		return -1;
 
 	return 0;
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 4d5ecc04c5b6..7665fd9ce559 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -54,10 +54,14 @@ static unsigned int psmouse_smartscroll = 1;
 module_param_named(smartscroll, psmouse_smartscroll, bool, 0644);
 MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
 
-static unsigned int psmouse_resetafter;
+static unsigned int psmouse_resetafter = 5;
 module_param_named(resetafter, psmouse_resetafter, uint, 0644);
 MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
 
+static unsigned int psmouse_resync_time = 5;
+module_param_named(resync_time, psmouse_resync_time, uint, 0644);
+MODULE_PARM_DESC(resync_time, "How long can mouse stay idle before forcing resync (in seconds, 0 = never).");
+
 PSMOUSE_DEFINE_ATTR(protocol, S_IWUSR | S_IRUGO,
 			NULL,
 			psmouse_attr_show_protocol, psmouse_attr_set_protocol);
@@ -70,12 +74,16 @@ PSMOUSE_DEFINE_ATTR(resolution, S_IWUSR | S_IRUGO,
 PSMOUSE_DEFINE_ATTR(resetafter, S_IWUSR | S_IRUGO,
 			(void *) offsetof(struct psmouse, resetafter),
 			psmouse_show_int_attr, psmouse_set_int_attr);
+PSMOUSE_DEFINE_ATTR(resync_time, S_IWUSR | S_IRUGO,
+			(void *) offsetof(struct psmouse, resync_time),
+			psmouse_show_int_attr, psmouse_set_int_attr);
 
 static struct attribute *psmouse_attributes[] = {
 	&psmouse_attr_protocol.dattr.attr,
 	&psmouse_attr_rate.dattr.attr,
 	&psmouse_attr_resolution.dattr.attr,
 	&psmouse_attr_resetafter.dattr.attr,
+	&psmouse_attr_resync_time.dattr.attr,
 	NULL
 };
 
@@ -98,6 +106,8 @@ __obsolete_setup("psmouse_rate=");
  */
 static DECLARE_MUTEX(psmouse_sem);
 
+static struct workqueue_struct *kpsmoused_wq;
+
 struct psmouse_protocol {
 	enum psmouse_type type;
 	char *name;
@@ -178,15 +188,79 @@ static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_reg
 }
 
 /*
- * psmouse_interrupt() handles incoming characters, either gathering them into
- * packets or passing them to the command routine as command output.
+ * __psmouse_set_state() sets new psmouse state and resets all flags.
+ */
+
+static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+	psmouse->state = new_state;
+	psmouse->pktcnt = psmouse->out_of_sync = 0;
+	psmouse->ps2dev.flags = 0;
+	psmouse->last = jiffies;
+}
+
+
+/*
+ * psmouse_set_state() sets new psmouse state and resets all flags and
+ * counters while holding serio lock so fighting with interrupt handler
+ * is not a concern.
+ */
+
+static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+	serio_pause_rx(psmouse->ps2dev.serio);
+	__psmouse_set_state(psmouse, new_state);
+	serio_continue_rx(psmouse->ps2dev.serio);
+}
+
+/*
+ * psmouse_handle_byte() processes one byte of the input data stream
+ * by calling corresponding protocol handler.
+ */
+
+static int psmouse_handle_byte(struct psmouse *psmouse, struct pt_regs *regs)
+{
+	psmouse_ret_t rc = psmouse->protocol_handler(psmouse, regs);
+
+	switch (rc) {
+		case PSMOUSE_BAD_DATA:
+			if (psmouse->state == PSMOUSE_ACTIVATED) {
+				printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
+					psmouse->name, psmouse->phys, psmouse->pktcnt);
+				if (++psmouse->out_of_sync == psmouse->resetafter) {
+					__psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+					printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
+					serio_reconnect(psmouse->ps2dev.serio);
+					return -1;
+				}
+			}
+			psmouse->pktcnt = 0;
+			break;
+
+		case PSMOUSE_FULL_PACKET:
+			psmouse->pktcnt = 0;
+			if (psmouse->out_of_sync) {
+				psmouse->out_of_sync = 0;
+				printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
+					psmouse->name, psmouse->phys);
+			}
+			break;
+
+		case PSMOUSE_GOOD_DATA:
+			break;
+	}
+	return 0;
+}
+
+/*
+ * psmouse_interrupt() handles incoming characters, either passing them
+ * for normal processing or gathering them as command response.
  */
 
 static irqreturn_t psmouse_interrupt(struct serio *serio,
 		unsigned char data, unsigned int flags, struct pt_regs *regs)
 {
 	struct psmouse *psmouse = serio_get_drvdata(serio);
-	psmouse_ret_t rc;
 
 	if (psmouse->state == PSMOUSE_IGNORE)
 		goto out;
@@ -208,67 +282,58 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		if  (ps2_handle_response(&psmouse->ps2dev, data))
 			goto out;
 
-	if (psmouse->state == PSMOUSE_INITIALIZING)
+	if (psmouse->state <= PSMOUSE_RESYNCING)
 		goto out;
 
 	if (psmouse->state == PSMOUSE_ACTIVATED &&
 	    psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
-		printk(KERN_WARNING "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n",
+		printk(KERN_INFO "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n",
 		       psmouse->name, psmouse->phys, psmouse->pktcnt);
-		psmouse->pktcnt = 0;
+		psmouse->badbyte = psmouse->packet[0];
+		__psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+		queue_work(kpsmoused_wq, &psmouse->resync_work);
+		goto out;
 	}
 
-	psmouse->last = jiffies;
 	psmouse->packet[psmouse->pktcnt++] = data;
-
-	if (psmouse->packet[0] == PSMOUSE_RET_BAT) {
+/*
+ * Check if this is a new device announcement (0xAA 0x00)
+ */
+	if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) {
 		if (psmouse->pktcnt == 1)
 			goto out;
 
-		if (psmouse->pktcnt == 2) {
-			if (psmouse->packet[1] == PSMOUSE_RET_ID) {
-				psmouse->state = PSMOUSE_IGNORE;
-				serio_reconnect(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->packet[1] == PSMOUSE_RET_ID) {
+			__psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+			serio_reconnect(serio);
+			goto out;
 		}
-	}
-
-	rc = psmouse->protocol_handler(psmouse, regs);
+/*
+ * Not a new device, try processing first byte normally
+ */
+		psmouse->pktcnt = 1;
+		if (psmouse_handle_byte(psmouse, regs))
+			goto out;
 
-	switch (rc) {
-		case PSMOUSE_BAD_DATA:
-			printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
-				psmouse->name, psmouse->phys, psmouse->pktcnt);
-			psmouse->pktcnt = 0;
+		psmouse->packet[psmouse->pktcnt++] = data;
+	}
 
-			if (++psmouse->out_of_sync == psmouse->resetafter) {
-				psmouse->state = PSMOUSE_IGNORE;
-				printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
-				serio_reconnect(psmouse->ps2dev.serio);
-			}
-			break;
+/*
+ * See if we need to force resync because mouse was idle for too long
+ */
+	if (psmouse->state == PSMOUSE_ACTIVATED &&
+	    psmouse->pktcnt == 1 && psmouse->resync_time &&
+	    time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) {
+		psmouse->badbyte = psmouse->packet[0];
+		__psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+		queue_work(kpsmoused_wq, &psmouse->resync_work);
+		goto out;
+	}
 
-		case PSMOUSE_FULL_PACKET:
-			psmouse->pktcnt = 0;
-			if (psmouse->out_of_sync) {
-				psmouse->out_of_sync = 0;
-				printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
-					psmouse->name, psmouse->phys);
-			}
-			break;
+	psmouse->last = jiffies;
+	psmouse_handle_byte(psmouse, regs);
 
-		case PSMOUSE_GOOD_DATA:
-			break;
-	}
-out:
+ out:
 	return IRQ_HANDLED;
 }
 
@@ -752,21 +817,6 @@ static void psmouse_initialize(struct psmouse *psmouse)
 }
 
 /*
- * psmouse_set_state() sets new psmouse state and resets all flags and
- * counters while holding serio lock so fighting with interrupt handler
- * is not a concern.
- */
-
-static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
-{
-	serio_pause_rx(psmouse->ps2dev.serio);
-	psmouse->state = new_state;
-	psmouse->pktcnt = psmouse->out_of_sync = 0;
-	psmouse->ps2dev.flags = 0;
-	serio_continue_rx(psmouse->ps2dev.serio);
-}
-
-/*
  * psmouse_activate() enables the mouse so that we get motion reports from it.
  */
 
@@ -794,6 +844,111 @@ static void psmouse_deactivate(struct psmouse *psmouse)
 	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 }
 
+/*
+ * psmouse_poll() - default poll hanlder. Everyone except for ALPS uses it.
+ */
+
+static int psmouse_poll(struct psmouse *psmouse)
+{
+	return ps2_command(&psmouse->ps2dev, psmouse->packet,
+			   PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
+}
+
+
+/*
+ * psmouse_resync() attempts to re-validate current protocol.
+ */
+
+static void psmouse_resync(void *p)
+{
+	struct psmouse *psmouse = p, *parent = NULL;
+	struct serio *serio = psmouse->ps2dev.serio;
+	psmouse_ret_t rc = PSMOUSE_GOOD_DATA;
+	int failed = 0, enabled = 0;
+	int i;
+
+	down(&psmouse_sem);
+
+	if (psmouse->state != PSMOUSE_RESYNCING)
+		goto out;
+
+	if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+		parent = serio_get_drvdata(serio->parent);
+		psmouse_deactivate(parent);
+	}
+
+/*
+ * Some mice don't ACK commands sent while they are in the middle of
+ * transmitting motion packet. To avoid delay we use ps2_sendbyte()
+ * instead of ps2_command() which would wait for 200ms for an ACK
+ * that may never come.
+ * As an additional quirk ALPS touchpads may not only forget to ACK
+ * disable command but will stop reporting taps, so if we see that
+ * mouse at least once ACKs disable we will do full reconnect if ACK
+ * is missing.
+ */
+	psmouse->num_resyncs++;
+
+	if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) {
+		if (psmouse->num_resyncs < 3 || psmouse->acks_disable_command)
+			failed = 1;
+	} else
+		psmouse->acks_disable_command = 1;
+
+/*
+ * Poll the mouse. If it was reset the packet will be shorter than
+ * psmouse->pktsize and ps2_command will fail. We do not expect and
+ * do not handle scenario when mouse "upgrades" its protocol while
+ * disconnected since it would require additional delay. If we ever
+ * see a mouse that does it we'll adjust the code.
+ */
+	if (!failed) {
+		if (psmouse->poll(psmouse))
+			failed = 1;
+		else {
+			psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+			for (i = 0; i < psmouse->pktsize; i++) {
+				psmouse->pktcnt++;
+				rc = psmouse->protocol_handler(psmouse, NULL);
+				if (rc != PSMOUSE_GOOD_DATA)
+					break;
+			}
+			if (rc != PSMOUSE_FULL_PACKET)
+				failed = 1;
+			psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+		}
+	}
+/*
+ * Now try to enable mouse. We try to do that even if poll failed and also
+ * repeat our attempts 5 times, otherwise we may be left out with disabled
+ * mouse.
+ */
+	for (i = 0; i < 5; i++) {
+		if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
+			enabled = 1;
+			break;
+		}
+		msleep(200);
+	}
+
+	if (!enabled) {
+		printk(KERN_WARNING "psmouse.c: failed to re-enable mouse on %s\n",
+			psmouse->ps2dev.serio->phys);
+		failed = 1;
+	}
+
+	if (failed) {
+		psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+		printk(KERN_INFO "psmouse.c: resync failed, issuing reconnect request\n");
+		serio_reconnect(serio);
+	} else
+		psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+
+	if (parent)
+		psmouse_activate(parent);
+ out:
+	up(&psmouse_sem);
+}
 
 /*
  * psmouse_cleanup() resets the mouse into power-on state.
@@ -822,6 +977,11 @@ static void psmouse_disconnect(struct serio *serio)
 
 	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 
+	/* make sure we don't have a resync in progress */
+	up(&psmouse_sem);
+	flush_workqueue(kpsmoused_wq);
+	down(&psmouse_sem);
+
 	if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
 		parent = serio_get_drvdata(serio->parent);
 		psmouse_deactivate(parent);
@@ -859,6 +1019,7 @@ static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_proto
 
 	psmouse->set_rate = psmouse_set_rate;
 	psmouse->set_resolution = psmouse_set_resolution;
+	psmouse->poll = psmouse_poll;
 	psmouse->protocol_handler = psmouse_process_byte;
 	psmouse->pktsize = 3;
 
@@ -874,6 +1035,23 @@ static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_proto
 	else
 		psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
 
+	/*
+	 * If mouse's packet size is 3 there is no point in polling the
+	 * device in hopes to detect protocol reset - we won't get less
+	 * than 3 bytes response anyhow.
+	 */
+	if (psmouse->pktsize == 3)
+		psmouse->resync_time = 0;
+
+	/*
+	 * Some smart KVMs fake response to POLL command returning just
+	 * 3 bytes and messing up our resync logic, so if initial poll
+	 * fails we won't try polling the device anymore. Hopefully
+	 * such KVM will maintain initially selected protocol.
+	 */
+	if (psmouse->resync_time && psmouse->poll(psmouse))
+		psmouse->resync_time = 0;
+
 	sprintf(psmouse->devname, "%s %s %s",
 		psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name);
 
@@ -914,6 +1092,7 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
 		goto out;
 
 	ps2_init(&psmouse->ps2dev, serio);
+	INIT_WORK(&psmouse->resync_work, psmouse_resync, psmouse);
 	psmouse->dev = input_dev;
 	sprintf(psmouse->phys, "%s/input0", serio->phys);
 
@@ -934,6 +1113,7 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
 	psmouse->rate = psmouse_rate;
 	psmouse->resolution = psmouse_resolution;
 	psmouse->resetafter = psmouse_resetafter;
+	psmouse->resync_time = parent ? 0 : psmouse_resync_time;
 	psmouse->smartscroll = psmouse_smartscroll;
 
 	psmouse_switch_protocol(psmouse, NULL);
@@ -1278,13 +1458,21 @@ static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
 
 static int __init psmouse_init(void)
 {
+	kpsmoused_wq = create_singlethread_workqueue("kpsmoused");
+	if (!kpsmoused_wq) {
+		printk(KERN_ERR "psmouse: failed to create kpsmoused workqueue\n");
+		return -ENOMEM;
+	}
+
 	serio_register_driver(&psmouse_drv);
+
 	return 0;
 }
 
 static void __exit psmouse_exit(void)
 {
 	serio_unregister_driver(&psmouse_drv);
+	destroy_workqueue(kpsmoused_wq);
 }
 
 module_init(psmouse_init);
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 7c4192bd1279..4d9107fba6a1 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -7,7 +7,7 @@
 #define PSMOUSE_CMD_GETINFO	0x03e9
 #define PSMOUSE_CMD_SETSTREAM	0x00ea
 #define PSMOUSE_CMD_SETPOLL	0x00f0
-#define PSMOUSE_CMD_POLL	0x03eb
+#define PSMOUSE_CMD_POLL	0x00eb	/* caller sets number of bytes to receive */
 #define PSMOUSE_CMD_GETID	0x02f2
 #define PSMOUSE_CMD_SETRATE	0x10f3
 #define PSMOUSE_CMD_ENABLE	0x00f4
@@ -23,6 +23,7 @@
 enum psmouse_state {
 	PSMOUSE_IGNORE,
 	PSMOUSE_INITIALIZING,
+	PSMOUSE_RESYNCING,
 	PSMOUSE_CMD_MODE,
 	PSMOUSE_ACTIVATED,
 };
@@ -38,15 +39,19 @@ struct psmouse {
 	void *private;
 	struct input_dev *dev;
 	struct ps2dev ps2dev;
+	struct work_struct resync_work;
 	char *vendor;
 	char *name;
 	unsigned char packet[8];
+	unsigned char badbyte;
 	unsigned char pktcnt;
 	unsigned char pktsize;
 	unsigned char type;
+	unsigned char acks_disable_command;
 	unsigned int model;
 	unsigned long last;
 	unsigned long out_of_sync;
+	unsigned long num_resyncs;
 	enum psmouse_state state;
 	char devname[64];
 	char phys[32];
@@ -54,6 +59,7 @@ struct psmouse {
 	unsigned int rate;
 	unsigned int resolution;
 	unsigned int resetafter;
+	unsigned int resync_time;
 	unsigned int smartscroll;	/* Logitech only */
 
 	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse, struct pt_regs *regs);
@@ -62,6 +68,7 @@ struct psmouse {
 
 	int (*reconnect)(struct psmouse *psmouse);
 	void (*disconnect)(struct psmouse *psmouse);
+	int (*poll)(struct psmouse *psmouse);
 
 	void (*pt_activate)(struct psmouse *psmouse);
 	void (*pt_deactivate)(struct psmouse *psmouse);
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 97cdfd6acaca..2051bec2c394 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -652,6 +652,8 @@ int synaptics_init(struct psmouse *psmouse)
 	psmouse->disconnect = synaptics_disconnect;
 	psmouse->reconnect = synaptics_reconnect;
 	psmouse->pktsize = 6;
+	/* Synaptics can usually stay in sync without extra help */
+	psmouse->resync_time = 0;
 
 	if (SYN_CAP_PASS_THROUGH(priv->capabilities))
 		synaptics_pt_create(psmouse);
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 2d2f9fb3aded..a4c6f3522723 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -173,6 +173,13 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 		},
 	},
+	{
+		.ident = "Sony Vaio FS-115b",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
+		},
+	},
 	{ }
 };
 
diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig
index 509dd0a04c54..5246b35301de 100644
--- a/drivers/usb/input/Kconfig
+++ b/drivers/usb/input/Kconfig
@@ -37,6 +37,16 @@ config USB_HIDINPUT
 
 	  If unsure, say Y.
 
+config USB_HIDINPUT_POWERBOOK
+	bool "Enable support for iBook/PowerBook special keys"
+	default n
+	depends on USB_HIDINPUT
+	help
+	  Say Y here if you want support for the special keys (Fn, Numlock) on
+	  Apple iBooks and PowerBooks.
+
+	  If unsure, say N.
+
 config HID_FF
 	bool "Force feedback support (EXPERIMENTAL)"
 	depends on USB_HIDINPUT && EXPERIMENTAL
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 5f52979af1c7..a91e72c41415 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -1450,6 +1450,9 @@ void hid_init_reports(struct hid_device *hid)
 #define USB_VENDOR_ID_APPLE		0x05ac
 #define USB_DEVICE_ID_APPLE_POWERMOUSE	0x0304
 
+#define USB_VENDOR_ID_CHERRY		0x046a
+#define USB_DEVICE_ID_CHERRY_CYMOTION	0x0023
+
 /*
  * Alphabetically sorted blacklist by quirk type.
  */
@@ -1580,6 +1583,16 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
 	{ USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
 
+	{ USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION },
+
+	{ USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },
+
 	{ 0, 0 }
 };
 
@@ -1626,6 +1639,20 @@ static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
 		usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma);
 }
 
+/*
+ * Cherry Cymotion keyboard have an invalid HID report descriptor,
+ * that needs fixing before we can parse it.
+ */
+
+static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize)
+{
+	if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
+		info("Fixing up Cherry Cymotion report descriptor");
+		rdesc[11] = rdesc[16] = 0xff;
+		rdesc[12] = rdesc[17] = 0x03;
+	}
+}
+
 static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 {
 	struct usb_host_interface *interface = intf->cur_altsetting;
@@ -1673,6 +1700,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 		return NULL;
 	}
 
+	if ((quirks & HID_QUIRK_CYMOTION))
+		hid_fixup_cymotion_descriptor(rdesc, rsize);
+
 #ifdef DEBUG_DATA
 	printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
 	for (n = 0; n < rsize; n++)
diff --git a/drivers/usb/input/hid-input.c b/drivers/usb/input/hid-input.c
index 192a03b28971..cb0d80f49252 100644
--- a/drivers/usb/input/hid-input.c
+++ b/drivers/usb/input/hid-input.c
@@ -73,6 +73,160 @@ static const struct {
 #define map_key_clear(c)	do { map_key(c); clear_bit(c, bit); } while (0)
 #define map_ff_effect(c)	do { set_bit(c, input->ffbit); } while (0)
 
+#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
+
+struct hidinput_key_translation {
+	u16 from;
+	u16 to;
+	u8 flags;
+};
+
+#define POWERBOOK_FLAG_FKEY 0x01
+
+static struct hidinput_key_translation powerbook_fn_keys[] = {
+	{ KEY_BACKSPACE, KEY_DELETE },
+	{ KEY_F1,	KEY_BRIGHTNESSDOWN,	POWERBOOK_FLAG_FKEY },
+	{ KEY_F2,	KEY_BRIGHTNESSUP,	POWERBOOK_FLAG_FKEY },
+	{ KEY_F3,	KEY_MUTE,		POWERBOOK_FLAG_FKEY },
+	{ KEY_F4,	KEY_VOLUMEDOWN,		POWERBOOK_FLAG_FKEY },
+	{ KEY_F5,	KEY_VOLUMEUP,		POWERBOOK_FLAG_FKEY },
+	{ KEY_F6,	KEY_NUMLOCK,		POWERBOOK_FLAG_FKEY },
+	{ KEY_F7,	KEY_SWITCHVIDEOMODE,	POWERBOOK_FLAG_FKEY },
+	{ KEY_F8,	KEY_KBDILLUMTOGGLE,	POWERBOOK_FLAG_FKEY },
+	{ KEY_F9,	KEY_KBDILLUMDOWN,	POWERBOOK_FLAG_FKEY },
+	{ KEY_F10,	KEY_KBDILLUMUP,		POWERBOOK_FLAG_FKEY },
+	{ KEY_UP,	KEY_PAGEUP },
+	{ KEY_DOWN,	KEY_PAGEDOWN },
+	{ KEY_LEFT,	KEY_HOME },
+	{ KEY_RIGHT,	KEY_END },
+	{ }
+};
+
+static struct hidinput_key_translation powerbook_numlock_keys[] = {
+	{ KEY_J,	KEY_KP1 },
+	{ KEY_K,	KEY_KP2 },
+	{ KEY_L,	KEY_KP3 },
+	{ KEY_U,	KEY_KP4 },
+	{ KEY_I,	KEY_KP5 },
+	{ KEY_O,	KEY_KP6 },
+	{ KEY_7,	KEY_KP7 },
+	{ KEY_8,	KEY_KP8 },
+	{ KEY_9,	KEY_KP9 },
+	{ KEY_M,	KEY_KP0 },
+	{ KEY_DOT,	KEY_KPDOT },
+	{ KEY_SLASH,	KEY_KPPLUS },
+	{ KEY_SEMICOLON, KEY_KPMINUS },
+	{ KEY_P,	KEY_KPASTERISK },
+	{ KEY_MINUS,	KEY_KPEQUAL },
+	{ KEY_0,	KEY_KPSLASH },
+	{ KEY_F6,	KEY_NUMLOCK },
+	{ KEY_KPENTER,	KEY_KPENTER },
+	{ KEY_BACKSPACE, KEY_BACKSPACE },
+	{ }
+};
+
+static int usbhid_pb_fnmode = 1;
+module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
+MODULE_PARM_DESC(pb_fnmode,
+	"Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
+
+static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
+{
+	struct hidinput_key_translation *trans;
+
+	/* Look for the translation */
+	for (trans = table; trans->from; trans++)
+		if (trans->from == from)
+			return trans;
+
+	return NULL;
+}
+
+static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
+			     struct hid_usage *usage, __s32 value)
+{
+	struct hidinput_key_translation *trans;
+
+	if (usage->code == KEY_FN) {
+		if (value) hid->quirks |=  HID_QUIRK_POWERBOOK_FN_ON;
+		else       hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
+
+		input_event(input, usage->type, usage->code, value);
+
+		return 1;
+	}
+
+	if (usbhid_pb_fnmode) {
+		int do_translate;
+
+		trans = find_translation(powerbook_fn_keys, usage->code);
+		if (trans) {
+			if (test_bit(usage->code, hid->pb_pressed_fn))
+				do_translate = 1;
+			else if (trans->flags & POWERBOOK_FLAG_FKEY)
+				do_translate =
+					(usbhid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
+					(usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
+			else
+				do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
+
+			if (do_translate) {
+				if (value)
+					set_bit(usage->code, hid->pb_pressed_fn);
+				else
+					clear_bit(usage->code, hid->pb_pressed_fn);
+
+				input_event(input, usage->type, trans->to, value);
+
+				return 1;
+			}
+		}
+
+		if (test_bit(usage->code, hid->pb_pressed_numlock) ||
+		    test_bit(LED_NUML, input->led)) {
+			trans = find_translation(powerbook_numlock_keys, usage->code);
+
+			if (trans) {
+				if (value)
+					set_bit(usage->code, hid->pb_pressed_numlock);
+				else
+					clear_bit(usage->code, hid->pb_pressed_numlock);
+
+				input_event(input, usage->type, trans->to, value);
+			}
+
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void hidinput_pb_setup(struct input_dev *input)
+{
+	struct hidinput_key_translation *trans;
+
+	set_bit(KEY_NUMLOCK, input->keybit);
+
+	/* Enable all needed keys */
+	for (trans = powerbook_fn_keys; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
+
+	for (trans = powerbook_numlock_keys; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
+}
+#else
+static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
+				    struct hid_usage *usage, __s32 value)
+{
+	return 0;
+}
+
+static inline void hidinput_pb_setup(struct input_dev *input)
+{
+}
+#endif
+
 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 				     struct hid_usage *usage)
 {
@@ -135,8 +289,11 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		case HID_UP_SIMULATION:
 
 			switch (usage->hid & 0xffff) {
-				case 0xba: map_abs(ABS_RUDDER); break;
+				case 0xba: map_abs(ABS_RUDDER);   break;
 				case 0xbb: map_abs(ABS_THROTTLE); break;
+				case 0xc4: map_abs(ABS_GAS);      break;
+				case 0xc5: map_abs(ABS_BRAKE);    break;
+				case 0xc8: map_abs(ABS_WHEEL);    break;
 				default:   goto ignore;
 			}
 			break;
@@ -289,11 +446,19 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 				case 0x226: map_key_clear(KEY_STOP);		break;
 				case 0x227: map_key_clear(KEY_REFRESH);		break;
 				case 0x22a: map_key_clear(KEY_BOOKMARKS);	break;
+				case 0x233: map_key_clear(KEY_SCROLLUP);	break;
+				case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
 				case 0x238: map_rel(REL_HWHEEL);		break;
 				case 0x279: map_key_clear(KEY_REDO);		break;
 				case 0x289: map_key_clear(KEY_REPLY);		break;
 				case 0x28b: map_key_clear(KEY_FORWARDMAIL);	break;
 				case 0x28c: map_key_clear(KEY_SEND);		break;
+
+				/* Reported on a Cherry Cymotion keyboard */
+				case 0x301: map_key_clear(KEY_PROG1);		break;
+				case 0x302: map_key_clear(KEY_PROG2);		break;
+				case 0x303: map_key_clear(KEY_PROG3);		break;
+
 				default:    goto ignore;
 			}
 			break;
@@ -325,7 +490,12 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 
 			set_bit(EV_REP, input->evbit);
 			switch(usage->hid & HID_USAGE) {
-				case 0x003: map_key_clear(KEY_FN);		break;
+				case 0x003:
+					/* The fn key on Apple PowerBooks */
+					map_key_clear(KEY_FN);
+					hidinput_pb_setup(input);
+					break;
+
 				default:    goto ignore;
 			}
 			break;
@@ -482,6 +652,9 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 		return;
 	}
 
+	if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
+		return;
+
 	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 		int hat_dir = usage->hat_dir;
 		if (!hat_dir)
@@ -524,7 +697,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 		return;
 	}
 
-	if((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
+	if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 		return;
 
 	input_event(input, usage->type, usage->code, value);
diff --git a/drivers/usb/input/hid.h b/drivers/usb/input/hid.h
index ee48a2276104..8b0d4346ce9c 100644
--- a/drivers/usb/input/hid.h
+++ b/drivers/usb/input/hid.h
@@ -235,17 +235,20 @@ struct hid_item {
  * HID device quirks.
  */
 
-#define HID_QUIRK_INVERT			0x001
-#define HID_QUIRK_NOTOUCH			0x002
-#define HID_QUIRK_IGNORE			0x004
-#define HID_QUIRK_NOGET				0x008
-#define HID_QUIRK_HIDDEV			0x010
-#define HID_QUIRK_BADPAD			0x020
-#define HID_QUIRK_MULTI_INPUT			0x040
-#define HID_QUIRK_2WHEEL_MOUSE_HACK_7		0x080
-#define HID_QUIRK_2WHEEL_MOUSE_HACK_5		0x100
-#define HID_QUIRK_2WHEEL_MOUSE_HACK_ON		0x200
-#define HID_QUIRK_2WHEEL_POWERMOUSE		0x400
+#define HID_QUIRK_INVERT			0x00000001
+#define HID_QUIRK_NOTOUCH			0x00000002
+#define HID_QUIRK_IGNORE			0x00000004
+#define HID_QUIRK_NOGET				0x00000008
+#define HID_QUIRK_HIDDEV			0x00000010
+#define HID_QUIRK_BADPAD			0x00000020
+#define HID_QUIRK_MULTI_INPUT			0x00000040
+#define HID_QUIRK_2WHEEL_MOUSE_HACK_7		0x00000080
+#define HID_QUIRK_2WHEEL_MOUSE_HACK_5		0x00000100
+#define HID_QUIRK_2WHEEL_MOUSE_HACK_ON		0x00000200
+#define HID_QUIRK_2WHEEL_POWERMOUSE		0x00000400
+#define HID_QUIRK_CYMOTION			0x00000800
+#define HID_QUIRK_POWERBOOK_HAS_FN		0x00001000
+#define HID_QUIRK_POWERBOOK_FN_ON		0x00002000
 
 /*
  * This is the global environment of the parser. This information is
@@ -431,6 +434,11 @@ struct hid_device {							/* device report descriptor */
 	void (*ff_exit)(struct hid_device*);                            /* Called by hid_exit_ff(hid) */
 	int (*ff_event)(struct hid_device *hid, struct input_dev *input,
 			unsigned int type, unsigned int code, int value);
+
+#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
+	unsigned long pb_pressed_fn[NBITS(KEY_MAX)];
+	unsigned long pb_pressed_numlock[NBITS(KEY_MAX)];
+#endif
 };
 
 #define HID_GLOBAL_STACK_SIZE 4
diff --git a/drivers/usb/input/pid.c b/drivers/usb/input/pid.c
index 19e015d171aa..d9d9f656b8c9 100644
--- a/drivers/usb/input/pid.c
+++ b/drivers/usb/input/pid.c
@@ -259,7 +259,7 @@ static int hid_pid_upload_effect(struct input_dev *dev,
 int hid_pid_init(struct hid_device *hid)
 {
 	struct hid_ff_pid *private;
-	struct hid_input *hidinput = list_entry(&hid->inputs, struct hid_input, list);
+	struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
 	struct input_dev *input_dev = hidinput->input;
 
 	private = hid->ff_private = kzalloc(sizeof(struct hid_ff_pid), GFP_KERNEL);
diff --git a/drivers/usb/input/wacom.c b/drivers/usb/input/wacom.c
index 48df4cfd5a42..d3e15df9e815 100644
--- a/drivers/usb/input/wacom.c
+++ b/drivers/usb/input/wacom.c
@@ -95,7 +95,7 @@ MODULE_LICENSE(DRIVER_LICENSE);
 enum {
 	PENPARTNER = 0,
 	GRAPHIRE,
-	G4,
+	WACOM_G4,
 	PL,
 	INTUOS,
 	INTUOS3,
@@ -373,7 +373,7 @@ static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
 
 			case 2: /* Mouse with wheel */
 				input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
-				if (wacom->features->type == G4) {
+				if (wacom->features->type == WACOM_G4) {
 					rw = data[7] & 0x04 ? -(data[7] & 0x03) : (data[7] & 0x03);
 					input_report_rel(dev, REL_WHEEL, rw);
 				} else
@@ -385,7 +385,7 @@ static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
 				id = CURSOR_DEVICE_ID;
 				input_report_key(dev, BTN_LEFT, data[1] & 0x01);
 				input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
-				if (wacom->features->type == G4)
+				if (wacom->features->type == WACOM_G4)
 					input_report_abs(dev, ABS_DISTANCE, data[6]);
 				else
 					input_report_abs(dev, ABS_DISTANCE, data[7]);
@@ -410,7 +410,7 @@ static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
 	input_sync(dev);
 
 	/* send pad data */
-	if (wacom->features->type == G4) {
+	if (wacom->features->type == WACOM_G4) {
 		/* fist time sending pad data */
 		if (wacom->tool[1] != BTN_TOOL_FINGER) {
 			wacom->id[1] = 0;
@@ -713,8 +713,8 @@ static struct wacom_features wacom_features[] = {
 	{ "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 	{ "Wacom Graphire3",     8,  10208,  7424,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 	{ "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 32, GRAPHIRE,   wacom_graphire_irq },
-	{ "Wacom Graphire4 4x5", 8,  10208,  7424,  511, 32, G4,	 wacom_graphire_irq },
-	{ "Wacom Graphire4 6x8", 8,  16704, 12064,  511, 32, G4,	 wacom_graphire_irq },
+	{ "Wacom Graphire4 4x5", 8,  10208,  7424,  511, 32, WACOM_G4,	 wacom_graphire_irq },
+	{ "Wacom Graphire4 6x8", 8,  16704, 12064,  511, 32, WACOM_G4,	 wacom_graphire_irq },
 	{ "Wacom Volito",        8,   5104,  3712,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 	{ "Wacom PenStation2",   8,   3250,  2320,  255, 32, GRAPHIRE,   wacom_graphire_irq },
 	{ "Wacom Volito2 4x5",   8,   5104,  3712,  511, 32, GRAPHIRE,   wacom_graphire_irq },
@@ -859,7 +859,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 	input_set_abs_params(input_dev, ABS_PRESSURE, 0, wacom->features->pressure_max, 0, 0);
 
 	switch (wacom->features->type) {
-		case G4:
+		case WACOM_G4:
 			input_dev->evbit[0] |= BIT(EV_MSC);
 			input_dev->mscbit[0] |= BIT(MSC_SERIAL);
 			input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);