Merge bk://linux.bkbits.net/linux-2.5

into hostme.bitkeeper.com:/repos/c/cifs/linux-2.5cifs

Documentation/kernel-parameters.txt

@@ -896,8 +896,8 @@ running once the system is up.
 	psmouse.rate=	[HW,MOUSE] Set desired mouse report rate, in reports
 			per second.
 	psmouse.resetafter=
-			[HW,MOUSE] Try to reset Synaptics Touchpad after so many
-			bad packets (0 = never).
+			[HW,MOUSE] Try to reset the device after so many bad packets
+			(0 = never).
 	psmouse.resolution=
 			[HW,MOUSE] Set desired mouse resolution, in dpi.
 	psmouse.smartscroll=

arch/arm/mm/fault-armv.c

@@ -8,6 +8,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -75,7 +76,7 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address)
 	return 0;
 }
 
-void __flush_dcache_page(struct page *page)
+static void __flush_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
 	struct mm_struct *mm = current->active_mm;
@@ -111,6 +112,17 @@ void __flush_dcache_page(struct page *page)
 	flush_dcache_mmap_unlock(mapping);
 }
 
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping))
+		set_bit(PG_dcache_dirty, &page->flags);
+	else
+		__flush_dcache_page(page);
+}
+EXPORT_SYMBOL(flush_dcache_page);
+
 static void
 make_coherent(struct vm_area_struct *vma, unsigned long addr, struct page *page, int dirty)
 {

arch/arm/mm/proc-syms.c

@@ -14,8 +14,6 @@
 #include <asm/proc-fns.h>
 #include <asm/tlbflush.h>
 
-EXPORT_SYMBOL(__flush_dcache_page);
-
 #ifndef MULTI_CPU
 EXPORT_SYMBOL(cpu_dcache_clean_area);
 EXPORT_SYMBOL(cpu_set_pte);
@@ -28,7 +26,6 @@ EXPORT_SYMBOL_NOVERS(__cpuc_flush_kern_all);
 EXPORT_SYMBOL_NOVERS(__cpuc_flush_user_all);
 EXPORT_SYMBOL_NOVERS(__cpuc_flush_user_range);
 EXPORT_SYMBOL_NOVERS(__cpuc_coherent_kern_range);
-EXPORT_SYMBOL_NOVERS(__cpuc_flush_dcache_page);
 #else
 EXPORT_SYMBOL(cpu_cache);
 #endif

arch/arm/tools/mach-types

@@ -6,7 +6,7 @@
 # To add an entry into this database, please see Documentation/arm/README,
 # or contact rmk@arm.linux.org.uk
 #
-# Last update: Thu Apr 29 19:06:33 2004
+# Last update: Fri May 28 13:17:46 2004
 #
 # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
 #
@@ -509,7 +509,7 @@ s3c5500			MACH_S3C5500		S3C5500			498
 smdk5500		MACH_SMDK5500		SMDK5500		499
 signalsync		MACH_SIGNALSYNC		SIGNALSYNC		500
 nbc			MACH_NBC		NBC			501
-er4525			MACH_ER4525		ER4525			502
+kodiak			MACH_KODIAK		KODIAK			502
 netbookpro		MACH_NETBOOKPRO		NETBOOKPRO		503
 hw90200			MACH_HW90200		HW90200			504
 condor			MACH_CONDOR		CONDOR			505
@@ -533,3 +533,16 @@ emc1000			MACH_EMC1000		EMC1000			522
 tidsc25			MACH_TIDSC25		TIDSC25			523
 akcpmxl			MACH_AKCPMXL		AKCPMXL			524
 av3xx			MACH_AV3XX		AV3XX			525
+avila			MACH_AVILA		AVILA			526
+pxa_mpm10		MACH_PXA_MPM10		PXA_MPM10		527
+pxa_kyanite		MACH_PXA_KYANITE	PXA_KYANITE		528
+sgold			MACH_SGOLD		SGOLD			529
+oscar			MACH_OSCAR		OSCAR			530
+epxa4usb2		MACH_EPXA4USB2		EPXA4USB2		531
+xsengine		MACH_XSENGINE		XSENGINE		532
+ip600			MACH_IP600		IP600			533
+mcan2			MACH_MCAN2		MCAN2			534
+ddi_blueridge		MACH_DDI_BLUERIDGE	DDI_BLUERIDGE		535
+skyminder		MACH_SKYMINDER		SKYMINDER		536
+lpd79520		MACH_LPD79520		LPD79520		537
+edb9302			MACH_EDB9302		EDB9302			538

arch/i386/kernel/dmi_scan.c

@@ -783,6 +783,7 @@ static __initdata struct dmi_blacklist dmi_blacklist[]={
 	{ exploding_pnp_bios, "ASUS P4P800", {	/* PnPBIOS GPF on boot */
 			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
 			MATCH(DMI_BOARD_NAME, "P4P800"),
+			NO_MATCH, NO_MATCH
 			} },
 
 	/* Machines which have problems handling enabled local APICs */

arch/ppc/mm/tlb.c

@@ -66,6 +66,17 @@ void flush_hash_one_pte(pte_t *ptep)
 	flush_hash_pages(mm->context, addr, ptephys, 1);
 }
 
+/*
+ * Called by ptep_set_access_flags, must flush on CPUs for which the
+ * DSI handler can't just "fixup" the TLB on a write fault
+ */
+void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr)
+{
+	if (Hash != 0)
+		return;
+	_tlbie(addr);
+}
+
 /*
  * Called at the end of a mmu_gather operation to make sure the
  * TLB flush is completely done.

drivers/char/synclink.c

@@ -4525,7 +4525,7 @@ static int mgsl_init_tty(void)
 
 /* enumerate user specified ISA adapters
  */
-static int mgsl_enum_isa_devices(void)
+static void mgsl_enum_isa_devices(void)
 {
 	struct mgsl_struct *info;
 	int i;

drivers/input/Kconfig

@@ -41,9 +41,16 @@ config INPUT_MOUSEDEV
 	  module will be called mousedev.
 
 config INPUT_MOUSEDEV_PSAUX
-	bool "Provide legacy /dev/psaux device" if EMBEDDED
+	bool "Provide legacy /dev/psaux device"
 	default y
 	depends on INPUT_MOUSEDEV
+	---help---
+	  Say Y here if you want your mouse also be accessible as char device
+	  10:1 - /dev/psaux. The data available through /dev/psaux is exactly
+	  the same as the data from /dev/input/mice.
+
+	  If unsure, say Y.
+
 
 config INPUT_MOUSEDEV_SCREEN_X
 	int "Horizontal screen resolution"

drivers/input/evdev.c

@@ -126,7 +126,7 @@ static int evdev_open(struct inode * inode, struct file * file)
 	int i = iminor(inode) - EVDEV_MINOR_BASE;
 	int accept_err;
 
-	if (i >= EVDEV_MINORS || !evdev_table[i])
+	if (i >= EVDEV_MINORS || !evdev_table[i] || !evdev_table[i]->exist)
 		return -ENODEV;
 
 	if ((accept_err = input_accept_process(&(evdev_table[i]->handle), file)))
@@ -175,7 +175,7 @@ static ssize_t evdev_read(struct file * file, char __user * buffer, size_t count
 		return -EAGAIN;
 
 	retval = wait_event_interruptible(list->evdev->wait,
-		list->head != list->tail && list->evdev->exist);
+		list->head != list->tail || (!list->evdev->exist));
 
 	if (retval)
 		return retval;

drivers/input/joystick/twidjoy.c

@@ -58,6 +58,9 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+MODULE_DESCRIPTION("Handykey Twiddler keyboard as a joystick driver");
+MODULE_LICENSE("GPL");
+
 /*
  * Constants.
  */
@@ -142,7 +145,7 @@ static void twidjoy_process_packet(struct twidjoy *twidjoy, struct pt_regs *regs
  * packet processing routine.
  */
 
-static void twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struc pt_regs *regs)
+static irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs)
 {
 	struct twidjoy *twidjoy = serio->private;
 
@@ -153,7 +156,7 @@ static void twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned
 	if ((data & 0x80) == 0)
 		twidjoy->idx = 0;	/* this byte starts a new packet */
 	else if (twidjoy->idx == 0)
-		return;			/* wrong MSB -- ignore this byte */
+		return IRQ_HANDLED;	/* wrong MSB -- ignore this byte */
 
 	if (twidjoy->idx < TWIDJOY_MAX_LENGTH)
 		twidjoy->data[twidjoy->idx++] = data;
@@ -163,7 +166,7 @@ static void twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned
 		twidjoy->idx = 0;
 	}
 
-	return;
+	return IRQ_HANDLED;
 }
 
 /*

drivers/input/keyboard/98kbd.c

@@ -109,7 +109,7 @@ struct kbd98 {
 	struct jis_kbd_conv jis[16];
 };
 
-void kbd98_interrupt(struct serio *serio, unsigned char data,
+irqreturn_t kbd98_interrupt(struct serio *serio, unsigned char data,
 			    unsigned int flags, struct pt_regs *regs)
 {
 	struct kbd98 *kbd98 = serio->private;
@@ -119,15 +119,15 @@ void kbd98_interrupt(struct serio *serio, unsigned char data,
 	switch (data) {
 		case KBD98_RET_ACK:
 			kbd98->ack = 1;
-			return;
+			goto out;
 		case KBD98_RET_NAK:
 			kbd98->ack = -1;
-			return;
+			goto out;
 	}
 
 	if (kbd98->cmdcnt) {
 		kbd98->cmdbuf[--kbd98->cmdcnt] = data;
-		return;
+		goto out;
 	}
 
 	scancode = data & KBD98_KEY;
@@ -164,7 +164,7 @@ void kbd98_interrupt(struct serio *serio, unsigned char data,
 
 			keycode = kbd98->jis[i].emul[kbd98->shift].keycode;
 			if (keycode == KBD98_KEY_NULL)
-				return;
+				break;
 
 			if (press) {
 				kbd98->emul.scancode = scancode;
@@ -187,27 +187,31 @@ void kbd98_interrupt(struct serio *serio, unsigned char data,
 			}
 
 			input_sync(&kbd98->dev);
-			return;
+			break;
 
 		case KEY_CAPSLOCK:
 			input_report_key(&kbd98->dev, keycode, 1);
 			input_sync(&kbd98->dev);
 			input_report_key(&kbd98->dev, keycode, 0);
 			input_sync(&kbd98->dev);
-			return;
+			break;
 
 		case KBD98_KEY_NULL:
-			return;
+			break;
 
 		case 0:
 			printk(KERN_WARNING "kbd98.c: Unknown key (scancode %#x) %s.\n",
 				data & KBD98_KEY, data & KBD98_RELEASE ? "released" : "pressed");
-			return;
+			break;
 
 		default:
 			input_report_key(&kbd98->dev, keycode, press);
 			input_sync(&kbd98->dev);
+			break;
 	}
+
+out:
+	return IRQ_HANDLED;
 }
 
 /*

drivers/input/keyboard/atkbd.c

@@ -26,7 +26,6 @@
 #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");
@@ -173,22 +172,24 @@ struct atkbd {
 	unsigned char keycode[512];
 	struct input_dev dev;
 	struct serio *serio;
-	struct timer_list timer;
+
 	char name[64];
 	char phys[32];
+	unsigned short id;
+	unsigned char set;
+	unsigned int translated:1;
+	unsigned int extra:1;
+	unsigned int write:1;
+
 	unsigned char cmdbuf[4];
 	unsigned char cmdcnt;
-	unsigned char set;
-	unsigned char extra;
-	unsigned char release;
-	int lastkey;
 	volatile signed char ack;
 	unsigned char emul;
-	unsigned short id;
-	unsigned char write;
-	unsigned char translated;
-	unsigned char resend;
-	unsigned char bat_xl;
+	unsigned int resend:1;
+	unsigned int release:1;
+	unsigned int bat_xl:1;
+	unsigned int enabled:1;
+
 	unsigned int last;
 	unsigned long time;
 };
@@ -248,6 +249,9 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 		goto out;
 	}
 
+	if (!atkbd->enabled)
+		goto out;
+
 	if (atkbd->translated) {
 
 		if (atkbd->emul ||
@@ -300,15 +304,20 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 		case ATKBD_KEY_NULL:
 			break;
 		case ATKBD_KEY_UNKNOWN:
-			printk(KERN_WARNING "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
+			if (data == ATKBD_RET_ACK || data == ATKBD_RET_NAK) {
+				printk(KERN_WARNING "atkbd.c: Spurious %s on %s. Some program, "
+				       "like XFree86, might be trying access hardware directly.\n",
+				       data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
+			} else {
+				printk(KERN_WARNING "atkbd.c: Unknown key %s "
+				       "(%s set %d, code %#x on %s).\n",
 				       atkbd->release ? "released" : "pressed",
 				       atkbd->translated ? "translated" : "raw",
 				       atkbd->set, code, serio->phys);
-			if (atkbd->translated && atkbd->set == 2 && code == 0x7a)
-				printk(KERN_WARNING "atkbd.c: This is an XFree86 bug. It shouldn't access"
-					" hardware directly.\n");
-			else
-				printk(KERN_WARNING "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",						code & 0x80 ? "e0" : "", code & 0x7f);
+				printk(KERN_WARNING "atkbd.c: Use 'setkeycodes %s%02x <keycode>' "
+				       "to make it known.\n",
+				       code & 0x80 ? "e0" : "", code & 0x7f);
+			}
 			break;
 		case ATKBD_SCR_1:
 			scroll = 1 - atkbd->release * 2;
@@ -745,6 +754,8 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 		atkbd->id = 0xab00;
 	}
 
+	atkbd->enabled = 1;
+
 	if (atkbd->extra) {
 		atkbd->dev.ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC);
 		sprintf(atkbd->name, "AT Set 2 Extra keyboard");

drivers/input/mouse/logips2pp.c

@@ -14,6 +14,25 @@
 #include "psmouse.h"
 #include "logips2pp.h"
 
+/* Logitech mouse types */
+#define PS2PP_KIND_WHEEL	1
+#define PS2PP_KIND_MX		2
+#define PS2PP_KIND_TP3		3
+
+/* Logitech mouse features */
+#define PS2PP_WHEEL		0x01
+#define PS2PP_HWHEEL		0x02
+#define PS2PP_SIDE_BTN		0x04
+#define PS2PP_EXTRA_BTN		0x08
+#define PS2PP_TASK_BTN		0x10
+#define PS2PP_NAV_BTN		0x20
+
+struct ps2pp_info {
+	const int model;
+	unsigned const int kind;
+	unsigned const int features;
+};
+
 /*
  * Process a PS2++ or PS2T++ packet.
  */
@@ -63,7 +82,6 @@ void ps2pp_process_packet(struct psmouse *psmouse)
 		packet[0] &= 0x0f;
 		packet[1] = 0;
 		packet[2] = 0;
-
 	}
 }
 
@@ -76,18 +94,9 @@ void ps2pp_process_packet(struct psmouse *psmouse)
 
 static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned char command)
 {
-	unsigned char d;
-	int i;
-
-	if (psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11))
+	if (psmouse_sliced_command(psmouse, command))
 		return -1;
 
-	for (i = 6; i >= 0; i -= 2) {
-		d = (command >> i) & 3;
-		if(psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES))
-			return -1;
-	}
-
 	if (psmouse_command(psmouse, param, PSMOUSE_CMD_POLL))
 		return -1;
 
@@ -113,14 +122,11 @@ static void ps2pp_set_smartscroll(struct psmouse *psmouse)
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
 
-	if (psmouse_smartscroll == 1) 
-		param[0] = 1;
-	else
-	if (psmouse_smartscroll > 2)
-		return;
-
-	/* else leave param[0] == 0 to disable */
+	if (psmouse_smartscroll < 2) {
+		/* 0 - disabled, 1 - enabled */
+		param[0] = psmouse_smartscroll;
 		psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	}
 }
 
 /*
@@ -138,133 +144,167 @@ void ps2pp_set_800dpi(struct psmouse *psmouse)
 	psmouse_command(psmouse, &param, PSMOUSE_CMD_SETRES);
 }
 
-/*
- * Detect the exact model and features of a PS2++ or PS2T++ Logitech mouse or
- * touchpad.
- */
-
-static int ps2pp_detect_model(struct psmouse *psmouse, unsigned char *param)
+static struct ps2pp_info *get_model_info(unsigned char model)
 {
-	int i;
-	static struct _logips2_list {
-		const int model;
-		unsigned const int features;
-	} logips2pp_list [] = {
-		{ 12,	PS2PP_4BTN},
-		{ 13,	0 },
-		{ 40,	PS2PP_4BTN },
-		{ 41,	PS2PP_4BTN },
-		{ 42,	PS2PP_4BTN },
-		{ 43,	PS2PP_4BTN },
-		{ 50,	0 },
-		{ 51,	0 },
-		{ 52,	PS2PP_4BTN | PS2PP_WHEEL },
-		{ 53,	PS2PP_WHEEL },
-		{ 61,	PS2PP_WHEEL | PS2PP_MX },	/* MX700 */
-		{ 73,	PS2PP_4BTN },
-		{ 75,	PS2PP_WHEEL },
-		{ 76,	PS2PP_WHEEL },
-		{ 80,	PS2PP_4BTN | PS2PP_WHEEL },
-		{ 81,	PS2PP_WHEEL },
-		{ 83,	PS2PP_WHEEL },
-		{ 88,	PS2PP_WHEEL },
-		{ 96,	0 },
-		{ 97,	0 },
-		{ 100 ,	PS2PP_WHEEL | PS2PP_MX },	/* MX510 */
-		{ 112 ,	PS2PP_WHEEL | PS2PP_MX },	/* MX500 */
-		{ 114 ,	PS2PP_WHEEL | PS2PP_MX | PS2PP_MX310 },	/* MX310 */
+	static struct ps2pp_info ps2pp_list[] = {
+		{ 12,	0,			PS2PP_SIDE_BTN},
+		{ 13,	0,			0 },
+		{ 40,	0,			PS2PP_SIDE_BTN },
+		{ 41,	0,			PS2PP_SIDE_BTN },
+		{ 42,	0,			PS2PP_SIDE_BTN },
+		{ 43,	0,			PS2PP_SIDE_BTN },
+		{ 50,	0,			0 },
+		{ 51,	0,			0 },
+		{ 52,	PS2PP_KIND_WHEEL,	PS2PP_SIDE_BTN | PS2PP_WHEEL },
+		{ 53,	PS2PP_KIND_WHEEL,	PS2PP_WHEEL },
+		{ 61,	PS2PP_KIND_MX,
+				PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+				PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },	/* MX700 */
+		{ 73,	0,			PS2PP_SIDE_BTN },
+		{ 75,	PS2PP_KIND_WHEEL,	PS2PP_WHEEL },
+		{ 76,	PS2PP_KIND_WHEEL,	PS2PP_WHEEL },
+		{ 80,	PS2PP_KIND_WHEEL,	PS2PP_SIDE_BTN | PS2PP_WHEEL },
+		{ 81,	PS2PP_KIND_WHEEL,	PS2PP_WHEEL },
+		{ 83,	PS2PP_KIND_WHEEL,	PS2PP_WHEEL },
+		{ 88,	PS2PP_KIND_WHEEL,	PS2PP_WHEEL },
+		{ 96,	0,			0 },
+		{ 97,	PS2PP_KIND_TP3,		PS2PP_WHEEL | PS2PP_HWHEEL },
+		{ 100,	PS2PP_KIND_MX,
+				PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+				PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },	/* MX510 */
+		{ 112,	PS2PP_KIND_MX,
+				PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+				PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },	/* MX500 */
+		{ 114,	PS2PP_KIND_MX,
+				PS2PP_WHEEL | PS2PP_SIDE_BTN |
+				PS2PP_TASK_BTN | PS2PP_EXTRA_BTN },	/* M310 */
 		{ }
 	};
+	int i;
 
-	psmouse->vendor = "Logitech";
-	psmouse->model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
-
-	if (param[1] < 3)
-		clear_bit(BTN_MIDDLE, psmouse->dev.keybit);
-	if (param[1] < 2)
-		clear_bit(BTN_RIGHT, psmouse->dev.keybit);
+	for (i = 0; ps2pp_list[i].model; i++)
+		if (model == ps2pp_list[i].model)
+			return &ps2pp_list[i];
+	return NULL;
+}
 
-	psmouse->type = PSMOUSE_PS2;
+/*
+ * Set up input device's properties based on the detected mouse model.
+ */
 
-	for (i = 0; logips2pp_list[i].model; i++){
-		if (logips2pp_list[i].model == psmouse->model){
-			psmouse->type = PSMOUSE_PS2PP;
-			if (logips2pp_list[i].features & PS2PP_4BTN)
+static void ps2pp_set_model_properties(struct psmouse *psmouse, struct ps2pp_info *model_info)
+{
+	if (model_info->features & PS2PP_SIDE_BTN)
 		set_bit(BTN_SIDE, psmouse->dev.keybit);
 
-			if (logips2pp_list[i].features & PS2PP_WHEEL){
-				set_bit(REL_WHEEL, psmouse->dev.relbit);
-				psmouse->name = "Wheel Mouse";
-			}
-			if (logips2pp_list[i].features & PS2PP_MX) {
-				set_bit(BTN_SIDE, psmouse->dev.keybit);
+	if (model_info->features & PS2PP_EXTRA_BTN)
 		set_bit(BTN_EXTRA, psmouse->dev.keybit);
+
+	if (model_info->features & PS2PP_TASK_BTN)
 		set_bit(BTN_TASK, psmouse->dev.keybit);
-				if (!(logips2pp_list[i].features & PS2PP_MX310)){
-					set_bit(BTN_BACK, psmouse->dev.keybit);
+
+	if (model_info->features & PS2PP_NAV_BTN) {
 		set_bit(BTN_FORWARD, psmouse->dev.keybit);
+		set_bit(BTN_BACK, psmouse->dev.keybit);
 	}
+
+	if (model_info->features & PS2PP_WHEEL)
+		set_bit(REL_WHEEL, psmouse->dev.relbit);
+
+	if (model_info->features & PS2PP_HWHEEL)
+		set_bit(REL_HWHEEL, psmouse->dev.relbit);
+
+	switch (model_info->kind) {
+		case PS2PP_KIND_WHEEL:
+			psmouse->name = "Wheel Mouse";
+			break;
+
+		case PS2PP_KIND_MX:
 			psmouse->name = "MX Mouse";
-			}
+			break;
+
+		case PS2PP_KIND_TP3:
+			psmouse->name = "TouchPad 3";
 			break;
 	}
-	}
+}
+
+
 /*
- * Do Logitech PS2++ / PS2T++ magic init.
+ * Logitech magic init. Detect whether the mouse is a Logitech one
+ * and its exact model and try turning on extended protocol for ones
+ * that support it.
  */
-	if (psmouse->type == PSMOUSE_PS2PP) {
 
-		if (psmouse->model == 97) { /* TouchPad 3 */
+int ps2pp_init(struct psmouse *psmouse, int set_properties)
+{
+	unsigned char param[4];
+	unsigned char protocol = PSMOUSE_PS2;
+	unsigned char model, buttons;
+	struct ps2pp_info *model_info;
 
-			set_bit(REL_WHEEL, psmouse->dev.relbit);
-			set_bit(REL_HWHEEL, psmouse->dev.relbit);
+	param[0] = 0;
+	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+	param[1] = 0;
+	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
+
+	if (param[1] != 0) {
+		model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
+		buttons = param[1];
+		model_info = get_model_info(model);
 
-			param[0] = 0x11; param[1] = 0x04; param[2] = 0x68; /* Unprotect RAM */
+/*
+ * Do Logitech PS2++ / PS2T++ magic init.
+ */
+		if (model == 97) { /* Touch Pad 3 */
+
+			/* Unprotect RAM */
+			param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
 			psmouse_command(psmouse, param, 0x30d1);
-			param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b; /* Enable features */
+			/* Enable features */
+			param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b;
 			psmouse_command(psmouse, param, 0x30d1);
-			param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3; /* Enable PS2++ */
+			/* Enable PS2++ */
+			param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3;
 			psmouse_command(psmouse, param, 0x30d1);
 
 			param[0] = 0;
 			if (!psmouse_command(psmouse, param, 0x13d1) &&
 			    param[0] == 0x06 && param[1] == 0x00 && param[2] == 0x14) {
-				psmouse->name = "TouchPad 3";
-				return PSMOUSE_PS2TPP;
+				protocol = PSMOUSE_PS2TPP;
 			}
 
-		} else {
+		} else if (get_model_info(model) != NULL) {
 
 			param[0] = param[1] = param[2] = 0;
 			ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */
 			ps2pp_cmd(psmouse, param, 0xDB);
 
-			if ((param[0] & 0x78) == 0x48 && (param[1] & 0xf3) == 0xc2 &&
-				(param[2] & 3) == ((param[1] >> 2) & 3)) {
+			if ((param[0] & 0x78) == 0x48 &&
+			    (param[1] & 0xf3) == 0xc2 &&
+			    (param[2] & 0x03) == ((param[1] >> 2) & 3)) {
 				ps2pp_set_smartscroll(psmouse);
-					return PSMOUSE_PS2PP;
-			}
+				protocol = PSMOUSE_PS2PP;
 			}
 		}
 
-	return 0;
-}
+		if (set_properties) {
+			psmouse->vendor = "Logitech";
+			psmouse->model = model;
 
-/*
- * Logitech magic init.
- */
-int ps2pp_detect(struct psmouse *psmouse)
-{
-	unsigned char param[4];
+			if (buttons < 3)
+				clear_bit(BTN_MIDDLE, psmouse->dev.keybit);
+			if (buttons < 2)
+				clear_bit(BTN_RIGHT, psmouse->dev.keybit);
 
-	param[0] = 0;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
-	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
-	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
-	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
-	param[1] = 0;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
+			if (model_info)
+				ps2pp_set_model_properties(psmouse, model_info);
+		}
+	}
 
-	return param[1] != 0 ? ps2pp_detect_model(psmouse, param) : 0;
+	return protocol;
 }
 

drivers/input/mouse/logips2pp.h

@@ -11,13 +11,8 @@
 #ifndef _LOGIPS2PP_H
 #define _LOGIPS2PP_H
 
-#define PS2PP_4BTN	0x01
-#define PS2PP_WHEEL	0x02
-#define PS2PP_MX	0x04
-#define PS2PP_MX310	0x08
-
-struct psmouse;
 void ps2pp_process_packet(struct psmouse *psmouse);
 void ps2pp_set_800dpi(struct psmouse *psmouse);
-int ps2pp_detect(struct psmouse *psmouse);
+int ps2pp_init(struct psmouse *psmouse, int set_properties);
+
 #endif

drivers/input/mouse/psmouse-base.c

@@ -43,9 +43,9 @@ int psmouse_smartscroll = 1;
 module_param_named(smartscroll, psmouse_smartscroll, bool, 0);
 MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
 
-unsigned int psmouse_resetafter;
+static unsigned int psmouse_resetafter;
 module_param_named(resetafter, psmouse_resetafter, uint, 0);
-MODULE_PARM_DESC(resetafter, "Reset Synaptics Touchpad after so many bad packets (0 = never).");
+MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
 
 __obsolete_setup("psmouse_noext");
 __obsolete_setup("psmouse_resolution=");
@@ -56,15 +56,22 @@ __obsolete_setup("psmouse_rate=");
 static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2"};
 
 /*
- * psmouse_process_packet() analyzes the PS/2 mouse packet contents and
- * reports relevant events to the input module.
+ * psmouse_process_byte() analyzes the PS/2 data stream and reports
+ * relevant events to the input module once full packet has arrived.
  */
 
-static void psmouse_process_packet(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
 {
 	struct input_dev *dev = &psmouse->dev;
 	unsigned char *packet = psmouse->packet;
 
+	if (psmouse->pktcnt < 3 + (psmouse->type >= PSMOUSE_GENPS))
+		return PSMOUSE_GOOD_DATA;
+
+/*
+ * Full packet accumulated, process it
+ */
+
 	input_regs(dev, regs);
 
 /*
@@ -112,6 +119,8 @@ static void psmouse_process_packet(struct psmouse *psmouse, struct pt_regs *regs
 	input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0);
 
 	input_sync(dev);
+
+	return PSMOUSE_FULL_PACKET;
 }
 
 /*
@@ -123,6 +132,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		unsigned char data, unsigned int flags, struct pt_regs *regs)
 {
 	struct psmouse *psmouse = serio->private;
+	psmouse_ret_t rc;
 
 	if (psmouse->state == PSMOUSE_IGNORE)
 		goto out;
@@ -180,7 +190,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		if (psmouse->pktcnt == 2) {
 			if (psmouse->packet[1] == PSMOUSE_RET_ID) {
 				psmouse->state = PSMOUSE_IGNORE;
-				serio_rescan(serio);
+				serio_reconnect(serio);
 				goto out;
 			}
 			if (psmouse->type == PSMOUSE_SYNAPTICS) {
@@ -193,19 +203,32 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		}
 	}
 
-	if (psmouse->type == PSMOUSE_SYNAPTICS) {
-		/*
-		 * The synaptics driver has its own resync logic,
-		 * so it needs to receive all bytes one at a time.
-		 */
-		synaptics_process_byte(psmouse, regs);
-		goto out;
+	rc = psmouse->protocol_handler(psmouse, regs);
+
+	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;
+
+			if (++psmouse->out_of_sync == psmouse_resetafter) {
+				psmouse->state = PSMOUSE_IGNORE;
+				printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
+				serio_reconnect(psmouse->serio);
 			}
+			break;
 
-	if (psmouse->pktcnt == 3 + (psmouse->type >= PSMOUSE_GENPS)) {
-		psmouse_process_packet(psmouse, regs);
+		case PSMOUSE_FULL_PACKET:
 			psmouse->pktcnt = 0;
-		goto out;
+			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;
 	}
 out:
 	return IRQ_HANDLED;
@@ -288,6 +311,30 @@ int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command)
 }
 
 
+/*
+ * psmouse_sliced_command() sends an extended PS/2 command to the mouse
+ * using sliced syntax, understood by advanced devices, such as Logitech
+ * or Synaptics touchpads. The command is encoded as:
+ * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu
+ * is the command.
+ */
+int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
+{
+	int i;
+
+	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11))
+		return -1;
+
+	for (i = 6; i >= 0; i -= 2) {
+		unsigned char d = (command >> i) & 3;
+		if (psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES))
+			return -1;
+	}
+
+	return 0;
+}
+
+
 /*
  * psmouse_reset() resets the mouse into power-on state.
  */
@@ -363,31 +410,31 @@ static int im_explorer_detect(struct psmouse *psmouse)
  * the mouse may have.
  */
 
-static int psmouse_extensions(struct psmouse *psmouse)
+static int psmouse_extensions(struct psmouse *psmouse,
+			      unsigned int max_proto, int set_properties)
 {
 	int synaptics_hardware = 0;
 
-	psmouse->vendor = "Generic";
-	psmouse->name = "Mouse";
-	psmouse->model = 0;
-
 /*
  * Try Synaptics TouchPad
  */
-	if (psmouse_max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse)) {
+	if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse)) {
 		synaptics_hardware = 1;
+
+		if (set_properties) {
 			psmouse->vendor = "Synaptics";
 			psmouse->name = "TouchPad";
+		}
 
-		if (psmouse_max_proto > PSMOUSE_IMEX) {
-			if (synaptics_init(psmouse) == 0)
+		if (max_proto > PSMOUSE_IMEX) {
+			if (!set_properties || synaptics_init(psmouse) == 0)
 				return PSMOUSE_SYNAPTICS;
 /*
  * Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
  * Unfortunately Logitech/Genius probes confuse some firmware versions so
  * we'll have to skip them.
  */
-			psmouse_max_proto = PSMOUSE_IMEX;
+			max_proto = PSMOUSE_IMEX;
 		}
 /*
  * Make sure that touchpad is in relative mode, gestures (taps) are enabled
@@ -395,35 +442,46 @@ static int psmouse_extensions(struct psmouse *psmouse)
 		synaptics_reset(psmouse);
 	}
 
-	if (psmouse_max_proto > PSMOUSE_IMEX && genius_detect(psmouse)) {
+	if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse)) {
+
+		if (set_properties) {
 			set_bit(BTN_EXTRA, psmouse->dev.keybit);
 			set_bit(BTN_SIDE, psmouse->dev.keybit);
 			set_bit(REL_WHEEL, psmouse->dev.relbit);
-
 			psmouse->vendor = "Genius";
 			psmouse->name = "Wheel Mouse";
+		}
+
 		return PSMOUSE_GENPS;
 	}
 
-	if (psmouse_max_proto > PSMOUSE_IMEX) {
-		int type = ps2pp_detect(psmouse);
-		if (type)
+	if (max_proto > PSMOUSE_IMEX) {
+		int type = ps2pp_init(psmouse, set_properties);
+		if (type > PSMOUSE_PS2)
 			return type;
 	}
 
-	if (psmouse_max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse)) {
-		set_bit(REL_WHEEL, psmouse->dev.relbit);
+	if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse)) {
 
-		if (psmouse_max_proto >= PSMOUSE_IMEX &&
-					im_explorer_detect(psmouse)) {
+		if (set_properties) {
+			set_bit(REL_WHEEL, psmouse->dev.relbit);
 			set_bit(BTN_SIDE, psmouse->dev.keybit);
 			set_bit(BTN_EXTRA, psmouse->dev.keybit);
-
+			if (!psmouse->name)
 				psmouse->name = "Explorer Mouse";
+		}
+
 		return PSMOUSE_IMEX;
 	}
 
+	if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse)) {
+
+		if (set_properties) {
+			set_bit(REL_WHEEL, psmouse->dev.relbit);
+			if (!psmouse->name)
 				psmouse->name = "Wheel Mouse";
+		}
+
 		return PSMOUSE_IMPS;
 	}
 
@@ -473,12 +531,7 @@ static int psmouse_probe(struct psmouse *psmouse)
 	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_RESET_DIS))
 		printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", psmouse->serio->phys);
 
-/*
- * And here we try to determine if it has any extensions over the
- * basic PS/2 3-button mouse.
- */
-
-	return psmouse->type = psmouse_extensions(psmouse);
+	return 0;
 }
 
 /*
@@ -616,7 +669,6 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 	psmouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 	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_CMD_MODE;
 	psmouse->serio = serio;
 	psmouse->dev.private = psmouse;
@@ -628,13 +680,21 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 		return;
 	}
 
-	if (psmouse_probe(psmouse) <= 0) {
+	if (psmouse_probe(psmouse) < 0) {
 		serio_close(serio);
 		kfree(psmouse);
 		serio->private = NULL;
 		return;
 	}
 
+	psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
+	if (!psmouse->vendor)
+		psmouse->vendor = "Generic";
+	if (!psmouse->name)
+		psmouse->name = "Mouse";
+	if (!psmouse->protocol_handler)
+		psmouse->protocol_handler = psmouse_process_byte;
+
 	sprintf(psmouse->devname, "%s %s %s",
 		psmouse_protocols[psmouse->type], psmouse->vendor, psmouse->name);
 	sprintf(psmouse->phys, "%s/input0",
@@ -668,27 +728,24 @@ static int psmouse_reconnect(struct serio *serio)
 {
 	struct psmouse *psmouse = serio->private;
 	struct serio_dev *dev = serio->dev;
-	int old_type;
 
 	if (!dev || !psmouse) {
 		printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
 		return -1;
 	}
 
-	old_type = psmouse->type;
-
 	psmouse->state = PSMOUSE_CMD_MODE;
-	psmouse->type = psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = 0;
+	psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = psmouse->out_of_sync = 0;
 	if (psmouse->reconnect) {
 	       if (psmouse->reconnect(psmouse))
 			return -1;
-	} else if (psmouse_probe(psmouse) != old_type)
+	} else if (psmouse_probe(psmouse) < 0 ||
+		   psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
 		return -1;
 
 	/* ok, the device type (and capabilities) match the old one,
 	 * we can continue using it, complete intialization
 	 */
-	psmouse->type = old_type;
 	psmouse_initialize(psmouse);
 
 	if (psmouse->ptport) {

drivers/input/mouse/psmouse.h

@@ -22,6 +22,13 @@
 #define PSMOUSE_ACTIVATED	1
 #define PSMOUSE_IGNORE		2
 
+/* psmouse protocol handler return codes */
+typedef enum {
+	PSMOUSE_BAD_DATA,
+	PSMOUSE_GOOD_DATA,
+	PSMOUSE_FULL_PACKET
+} psmouse_ret_t;
+
 struct psmouse;
 
 struct psmouse_ptport {
@@ -45,6 +52,7 @@ struct psmouse {
 	unsigned char type;
 	unsigned char model;
 	unsigned long last;
+	unsigned long out_of_sync;
 	unsigned char state;
 	char acking;
 	volatile char ack;
@@ -52,6 +60,7 @@ struct psmouse {
 	char devname[64];
 	char phys[32];
 
+	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse, struct pt_regs *regs); 
 	int (*reconnect)(struct psmouse *psmouse);
 	void (*disconnect)(struct psmouse *psmouse);
 };
@@ -65,10 +74,10 @@ struct psmouse {
 #define PSMOUSE_SYNAPTICS 	7
 
 int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command);
+int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
 int psmouse_reset(struct psmouse *psmouse);
 
 extern int psmouse_smartscroll;
 extern unsigned int psmouse_rate;
-extern unsigned int psmouse_resetafter;
 
 #endif /* _PSMOUSE_H */

drivers/input/mouse/synaptics.c

@@ -43,34 +43,12 @@
  *	Synaptics communications functions
  ****************************************************************************/
 
-/*
- * Use the Synaptics extended ps/2 syntax to write a special command byte.
- * special command: 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu
- *                  is the command. A 0xF3 or 0xE9 must follow (see synaptics_send_cmd
- *                  and synaptics_mode_cmd)
- */
-static int synaptics_special_cmd(struct psmouse *psmouse, unsigned char command)
-{
-	int i;
-
-	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11))
-		return -1;
-
-	for (i = 6; i >= 0; i -= 2) {
-		unsigned char d = (command >> i) & 3;
-		if (psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES))
-			return -1;
-	}
-
-	return 0;
-}
-
 /*
  * Send a command to the synpatics touchpad by special commands
  */
 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
 {
-	if (synaptics_special_cmd(psmouse, c))
+	if (psmouse_sliced_command(psmouse, c))
 		return -1;
 	if (psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO))
 		return -1;
@@ -84,7 +62,7 @@ static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
 {
 	unsigned char param[1];
 
-	if (synaptics_special_cmd(psmouse, mode))
+	if (psmouse_sliced_command(psmouse, mode))
 		return -1;
 	param[0] = SYN_PS_SET_MODE2;
 	if (psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE))
@@ -118,17 +96,31 @@ static int synaptics_capability(struct psmouse *psmouse)
 
 	if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
 		return -1;
-	priv->capabilities = (cap[0]<<16) | (cap[1]<<8) | cap[2];
+	priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
 	priv->ext_cap = 0;
 	if (!SYN_CAP_VALID(priv->capabilities))
 		return -1;
 
-	if (SYN_EXT_CAP_REQUESTS(priv->capabilities)) {
+	/*
+	 * Unless capExtended is set the rest of the flags should be ignored
+	 */
+	if (!SYN_CAP_EXTENDED(priv->capabilities))
+		priv->capabilities = 0;
+
+	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
 		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
-			priv->ext_cap = (cap[0]<<16) | (cap[1]<<8) | cap[2];
+		} else {
+			priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+
+			/*
+			 * if nExtBtn is greater than 8 it should be considered
+			 * invalid and treated as 0
+			 */
+			if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
+				priv->ext_cap &= 0xff0fff;
+		}
 	}
 	return 0;
 }
@@ -167,11 +159,12 @@ 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_MULTI_BUTTON_NO(priv->ext_cap) &&
-		    SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) <= 8)
+		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))
+		if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+			printk(KERN_INFO " -> middle button\n");
+		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");
@@ -219,21 +212,12 @@ static int synaptics_set_mode(struct psmouse *psmouse, int mode)
 /*****************************************************************************
  *	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))
+	if (psmouse_sliced_command(parent, c))
 		return -1;
 	if (psmouse_command(parent, &rate_param, PSMOUSE_CMD_SETRATE))
 		return -1;
@@ -289,165 +273,11 @@ static void synaptics_pt_create(struct psmouse *psmouse)
 	port->serio.name = "Synaptics pass-through";
 	port->serio.phys = "synaptics-pt/serio0";
 	port->serio.write = synaptics_pt_write;
-	port->serio.open = synaptics_pt_open;
-	port->serio.close = synaptics_pt_close;
 	port->serio.driver = psmouse;
 
 	port->activate = synaptics_pt_activate;
 }
 
-/*****************************************************************************
- *	Driver initialization/cleanup functions
- ****************************************************************************/
-
-static inline void set_abs_params(struct input_dev *dev, int axis, int min, int max, int fuzz, int flat)
-{
-	dev->absmin[axis] = min;
-	dev->absmax[axis] = max;
-	dev->absfuzz[axis] = fuzz;
-	dev->absflat[axis] = flat;
-
-	set_bit(axis, dev->absbit);
-}
-
-static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
-{
-	set_bit(EV_ABS, dev->evbit);
-	set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
-	set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
-	set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
-	set_bit(ABS_TOOL_WIDTH, dev->absbit);
-
-	set_bit(EV_KEY, dev->evbit);
-	set_bit(BTN_TOUCH, dev->keybit);
-	set_bit(BTN_TOOL_FINGER, dev->keybit);
-	set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
-	set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
-
-	set_bit(BTN_LEFT, dev->keybit);
-	set_bit(BTN_RIGHT, dev->keybit);
-	set_bit(BTN_FORWARD, dev->keybit);
-	set_bit(BTN_BACK, dev->keybit);
-	if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)) {
-		switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
-		default:
-			/*
-			 * if nExtBtn is greater than 8 it should be considered
-			 * invalid and treated as 0
-			 */
-			break;
-		case 8:
-			set_bit(BTN_7, dev->keybit);
-			set_bit(BTN_6, dev->keybit);
-		case 6:
-			set_bit(BTN_5, dev->keybit);
-			set_bit(BTN_4, dev->keybit);
-		case 4:
-			set_bit(BTN_3, dev->keybit);
-			set_bit(BTN_2, dev->keybit);
-		case 2:
-			set_bit(BTN_1, dev->keybit);
-			set_bit(BTN_0, dev->keybit);
-			break;
-		}
-	}
-
-	clear_bit(EV_REL, dev->evbit);
-	clear_bit(REL_X, dev->relbit);
-	clear_bit(REL_Y, dev->relbit);
-}
-
-void synaptics_reset(struct psmouse *psmouse)
-{
-	/* reset touchpad back to relative mode, gestures enabled */
-	synaptics_mode_cmd(psmouse, 0);
-}
-
-static void synaptics_disconnect(struct psmouse *psmouse)
-{
-	synaptics_reset(psmouse);
-	kfree(psmouse->private);
-}
-
-static int synaptics_reconnect(struct psmouse *psmouse)
-{
-	struct synaptics_data *priv = psmouse->private;
-	struct synaptics_data old_priv = *priv;
-
-	if (!synaptics_detect(psmouse))
-		return -1;
-
-	if (synaptics_query_hardware(psmouse)) {
-		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
-		return -1;
-	}
-
-	if (old_priv.identity != priv->identity ||
-	    old_priv.model_id != priv->model_id ||
-	    old_priv.capabilities != priv->capabilities ||
-    	    old_priv.ext_cap != priv->ext_cap)
-    		return -1;
-
-	if (synaptics_set_mode(psmouse, 0)) {
-		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
-		return -1;
-	}
-
-	return 0;
-}
-
-int synaptics_detect(struct psmouse *psmouse)
-{
-	unsigned char param[4];
-
-	param[0] = 0;
-
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
-
-	return param[1] == 0x47;
-}
-
-int synaptics_init(struct psmouse *psmouse)
-{
-	struct synaptics_data *priv;
-
-	psmouse->private = priv = kmalloc(sizeof(struct synaptics_data), GFP_KERNEL);
-	if (!priv)
-		return -1;
-	memset(priv, 0, sizeof(struct synaptics_data));
-
-	if (synaptics_query_hardware(psmouse)) {
-		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
-		goto init_fail;
-	}
-
-	if (synaptics_set_mode(psmouse, 0)) {
-		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
-		goto init_fail;
-	}
-
-	priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
-
-	if (SYN_CAP_EXTENDED(priv->capabilities) && SYN_CAP_PASS_THROUGH(priv->capabilities))
-       		synaptics_pt_create(psmouse);
-
-	print_ident(priv);
-	set_input_params(&psmouse->dev, priv);
-
-	psmouse->disconnect = synaptics_disconnect;
-	psmouse->reconnect = synaptics_reconnect;
-
-	return 0;
-
- init_fail:
-	kfree(priv);
-	return -1;
-}
-
 /*****************************************************************************
  *	Functions to interpret the absolute mode packets
  ****************************************************************************/
@@ -471,17 +301,17 @@ static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data
 
 		hw->left  = (buf[0] & 0x01) ? 1 : 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;
-			if (hw->left)
-				hw->up = !hw->up;
-			hw->down = ((buf[3] & 0x02)) ? 1 : 0;
-			if (hw->right)
-				hw->down = !hw->down;
+
+		if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+			hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+
+		if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
+			hw->up   = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+			hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
 		}
+
 		if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
-		    ((buf[3] & 2) ? !hw->right : hw->right)) {
+		    ((buf[0] ^ buf[3]) & 0x02)) {
 			switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
 			default:
 				/*
@@ -490,17 +320,17 @@ static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data
 				 */
 				break;
 			case 8:
-				hw->b7 = ((buf[5] & 0x08)) ? 1 : 0;
-				hw->b6 = ((buf[4] & 0x08)) ? 1 : 0;
+				hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
+				hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
 			case 6:
-				hw->b5 = ((buf[5] & 0x04)) ? 1 : 0;
-				hw->b4 = ((buf[4] & 0x04)) ? 1 : 0;
+				hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
+				hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
 			case 4:
-				hw->b3 = ((buf[5] & 0x02)) ? 1 : 0;
-				hw->b2 = ((buf[4] & 0x02)) ? 1 : 0;
+				hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
+				hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
 			case 2:
-				hw->b1 = ((buf[5] & 0x01)) ? 1 : 0;
-				hw->b0 = ((buf[4] & 0x01)) ? 1 : 0;
+				hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
+				hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
 			}
 		}
 	} else {
@@ -525,6 +355,7 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 	struct synaptics_hw_state hw;
 	int num_fingers;
 	int finger_width;
+	int i;
 
 	synaptics_parse_hw_state(psmouse->packet, priv, &hw);
 
@@ -572,30 +403,18 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 
 	input_report_key(dev, BTN_LEFT, hw.left);
 	input_report_key(dev, BTN_RIGHT, hw.right);
+
+	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+		input_report_key(dev, BTN_MIDDLE, hw.middle);
+
+	if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
 		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:
-			/*
-			 * if nExtBtn is greater than 8 it should be considered
-			 * invalid and treated as 0
-			 */
-			break;
-		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;
 	}
+
+	for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+		input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i));
+
 	input_sync(dev);
 }
 
@@ -607,6 +426,9 @@ static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned cha
 	static unsigned char oldabs_mask[]	= { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
 	static unsigned char oldabs_rslt[]	= { 0xC0, 0x00, 0x00, 0x80, 0x00 };
 
+	if (idx < 0 || idx > 4)
+		return 0;
+
 	switch (pkt_type) {
 		case SYN_NEWABS:
 		case SYN_NEWABS_RELAXED:
@@ -637,7 +459,7 @@ static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
 	return SYN_NEWABS_STRICT;
 }
 
-void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
 {
 	struct input_dev *dev = &psmouse->dev;
 	struct synaptics_data *priv = psmouse->private;
@@ -645,11 +467,6 @@ void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
 	input_regs(dev, regs);
 
 	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 (unlikely(priv->pkt_type == SYN_NEWABS))
 			priv->pkt_type = synaptics_detect_pkt_type(psmouse);
 
@@ -657,16 +474,142 @@ void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
 			synaptics_pass_pt_packet(&psmouse->ptport->serio, psmouse->packet);
 		else
 			synaptics_process_packet(psmouse);
-		psmouse->pktcnt = 0;
-
-	} else if (psmouse->pktcnt &&
-		   !synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type)) {
-		printk(KERN_WARNING "Synaptics driver lost sync at byte %d\n", psmouse->pktcnt);
-		psmouse->pktcnt = 0;
-		if (++priv->out_of_sync == psmouse_resetafter) {
-			psmouse->state = PSMOUSE_IGNORE;
-			printk(KERN_NOTICE "synaptics: issuing reconnect request\n");
-			serio_reconnect(psmouse->serio);
+
+		return PSMOUSE_FULL_PACKET;
+	}
+
+	return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ?
+		PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+}
+
+/*****************************************************************************
+ *	Driver initialization/cleanup functions
+ ****************************************************************************/
+static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
+{
+	int i;
+
+	set_bit(EV_ABS, dev->evbit);
+	input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
+	input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
+	input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+	set_bit(ABS_TOOL_WIDTH, dev->absbit);
+
+	set_bit(EV_KEY, dev->evbit);
+	set_bit(BTN_TOUCH, dev->keybit);
+	set_bit(BTN_TOOL_FINGER, dev->keybit);
+	set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+	set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
+
+	set_bit(BTN_LEFT, dev->keybit);
+	set_bit(BTN_RIGHT, dev->keybit);
+
+	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+		set_bit(BTN_MIDDLE, dev->keybit);
+
+	if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
+		set_bit(BTN_FORWARD, dev->keybit);
+		set_bit(BTN_BACK, dev->keybit);
+	}
+
+	for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+		set_bit(BTN_0 + i, dev->keybit);
+
+	clear_bit(EV_REL, dev->evbit);
+	clear_bit(REL_X, dev->relbit);
+	clear_bit(REL_Y, dev->relbit);
+}
+
+void synaptics_reset(struct psmouse *psmouse)
+{
+	/* reset touchpad back to relative mode, gestures enabled */
+	synaptics_mode_cmd(psmouse, 0);
+}
+
+static void synaptics_disconnect(struct psmouse *psmouse)
+{
+	synaptics_reset(psmouse);
+	kfree(psmouse->private);
+}
+
+static int synaptics_reconnect(struct psmouse *psmouse)
+{
+	struct synaptics_data *priv = psmouse->private;
+	struct synaptics_data old_priv = *priv;
+
+	if (!synaptics_detect(psmouse))
+		return -1;
+
+	if (synaptics_query_hardware(psmouse)) {
+		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
+		return -1;
+	}
+
+	if (old_priv.identity != priv->identity ||
+	    old_priv.model_id != priv->model_id ||
+	    old_priv.capabilities != priv->capabilities ||
+	    old_priv.ext_cap != priv->ext_cap)
+		return -1;
+
+	if (synaptics_set_mode(psmouse, 0)) {
+		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+int synaptics_detect(struct psmouse *psmouse)
+{
+	unsigned char param[4];
+
+	param[0] = 0;
+
+	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
+
+	return param[1] == 0x47;
+}
+
+int synaptics_init(struct psmouse *psmouse)
+{
+	struct synaptics_data *priv;
+
+	psmouse->private = priv = kmalloc(sizeof(struct synaptics_data), GFP_KERNEL);
+	if (!priv)
+		return -1;
+	memset(priv, 0, sizeof(struct synaptics_data));
+
+	if (synaptics_query_hardware(psmouse)) {
+		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
+		goto init_fail;
 	}
+
+	if (synaptics_set_mode(psmouse, 0)) {
+		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
+		goto init_fail;
 	}
+
+	priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
+
+	if (SYN_CAP_PASS_THROUGH(priv->capabilities))
+		synaptics_pt_create(psmouse);
+
+	print_ident(priv);
+	set_input_params(&psmouse->dev, priv);
+
+	psmouse->protocol_handler = synaptics_process_byte;
+	psmouse->disconnect = synaptics_disconnect;
+	psmouse->reconnect = synaptics_reconnect;
+
+	return 0;
+
+ init_fail:
+	kfree(priv);
+	return -1;
 }
+
+

drivers/input/mouse/synaptics.h

@@ -9,7 +9,6 @@
 #ifndef _SYNAPTICS_H
 #define _SYNAPTICS_H
 
-extern void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs);
 extern int synaptics_detect(struct psmouse *psmouse);
 extern int synaptics_init(struct psmouse *psmouse);
 extern void synaptics_reset(struct psmouse *psmouse);
@@ -44,13 +43,14 @@ extern void synaptics_reset(struct psmouse *psmouse);
 
 /* synaptics capability bits */
 #define SYN_CAP_EXTENDED(c)		((c) & (1 << 23))
+#define SYN_CAP_MIDDLE_BUTTON(c)	((c) & (1 << 18))
 #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_EXT_CAP_REQUESTS(c)		(((c) & 0x700000) >> 20)
 #define SYN_CAP_MULTI_BUTTON_NO(ec)	(((ec) & 0x00f000) >> 12)
 
 /* synaptics modes query bits */
@@ -86,18 +86,12 @@ struct synaptics_hw_state {
 	int y;
 	int z;
 	int w;
-	int left;
-	int right;
-	int up;
-	int down;
-	int b0;
-	int b1;
-	int b2;
-	int b3;
-	int b4;
-	int b5;
-	int b6;
-	int b7;
+	unsigned int left:1;
+	unsigned int right:1;
+	unsigned int middle:1;
+	unsigned int up:1;
+	unsigned int down:1;
+	unsigned char ext_buttons;
 };
 
 struct synaptics_data {
@@ -108,7 +102,6 @@ struct synaptics_data {
 	unsigned long int identity;		/* Identification */
 
 	/* Data for normal processing */
-	unsigned int out_of_sync;		/* # of packets out of sync */
 	int old_w;				/* Previous w value */
 	unsigned char pkt_type;			/* packet type - old, new, etc */
 };

drivers/input/mousedev.c

@@ -2,6 +2,7 @@
  * Input driver to ExplorerPS/2 device driver module.
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2004      Dmitry Torokhov
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as published by
@@ -47,15 +48,24 @@ static int yres = CONFIG_INPUT_MOUSEDEV_SCREEN_Y;
 module_param(yres, uint, 0);
 MODULE_PARM_DESC(yres, "Vertical screen resolution");
 
+struct mousedev_motion {
+	int dx, dy, dz;
+};
+
 struct mousedev {
 	int exist;
 	int open;
 	int minor;
-	int misc;
 	char name[16];
 	wait_queue_head_t wait;
 	struct list_head list;
 	struct input_handle handle;
+
+	struct mousedev_motion packet;
+	unsigned long buttons;
+	unsigned int pkt_count;
+	int old_x[4], old_y[4];
+	unsigned int touch;
 };
 
 struct mousedev_list {
@@ -63,13 +73,10 @@ struct mousedev_list {
 	struct mousedev *mousedev;
 	struct list_head node;
 	int dx, dy, dz;
-	int old_x[4], old_y[4];
 	unsigned long buttons;
 	signed char ps2[6];
 	unsigned char ready, buffer, bufsiz;
 	unsigned char mode, imexseq, impsseq;
-	unsigned int pkt_count;
-	unsigned char touch;
 };
 
 #define MOUSEDEV_SEQ_LEN	6
@@ -82,135 +89,157 @@ static struct input_handler mousedev_handler;
 static struct mousedev *mousedev_table[MOUSEDEV_MINORS];
 static struct mousedev mousedev_mix;
 
-#define fx(i)  (list->old_x[(list->pkt_count - (i)) & 03])
-#define fy(i)  (list->old_y[(list->pkt_count - (i)) & 03])
+#define fx(i)  (mousedev->old_x[(mousedev->pkt_count - (i)) & 03])
+#define fy(i)  (mousedev->old_y[(mousedev->pkt_count - (i)) & 03])
 
-static void mousedev_abs_event(struct input_handle *handle, struct mousedev_list *list, unsigned int code, int value)
+static void mousedev_touchpad_event(struct mousedev *mousedev, unsigned int code, int value)
 {
-	int size;
-	int touchpad;
-
-	/* Ignore joysticks */
-	if (test_bit(BTN_TRIGGER, handle->dev->keybit))
-		return;
-
-	touchpad = test_bit(BTN_TOOL_FINGER, handle->dev->keybit);
-
+	if (mousedev->touch) {
 		switch (code) {
 			case ABS_X:
-			if (touchpad) {
-				if (list->touch) {
 				fx(0) = value;
-					if (list->pkt_count >= 2)
-						list->dx = ((fx(0) - fx(1)) / 2 + (fx(1) - fx(2)) / 2) / 8;
-				}
-			} else {
-				size = handle->dev->absmax[ABS_X] - handle->dev->absmin[ABS_X];
-				if (size == 0) size = xres;
-				list->dx += (value * xres - list->old_x[0]) / size;
-				list->old_x[0] += list->dx * size;
-			}
+				if (mousedev->pkt_count >= 2)
+					mousedev->packet.dx = ((fx(0) - fx(1)) / 2 + (fx(1) - fx(2)) / 2) / 8;
 				break;
+
 			case ABS_Y:
-			if (touchpad) {
-				if (list->touch) {
 				fy(0) = value;
-					if (list->pkt_count >= 2)
-						list->dy = -((fy(0) - fy(1)) / 2 + (fy(1) - fy(2)) / 2) / 8;
-				}
-			} else {
-				size = handle->dev->absmax[ABS_Y] - handle->dev->absmin[ABS_Y];
-				if (size == 0) size = yres;
-				list->dy -= (value * yres - list->old_y[0]) / size;
-				list->old_y[0] -= list->dy * size;
-			}
+				if (mousedev->pkt_count >= 2)
+					mousedev->packet.dy = -((fy(0) - fy(1)) / 2 + (fy(1) - fy(2)) / 2) / 8;
 				break;
 		}
+	}
 }
 
-static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
+static void mousedev_abs_event(struct input_dev *dev, struct mousedev *mousedev, unsigned int code, int value)
 {
-	struct mousedev *mousedevs[3] = { handle->private, &mousedev_mix, NULL };
-	struct mousedev **mousedev = mousedevs;
-	struct mousedev_list *list;
-	int index, wake;
-
-	while (*mousedev) {
+	int size;
 
-		wake = 0;
+	switch (code) {
+		case ABS_X:
+			size = dev->absmax[ABS_X] - dev->absmin[ABS_X];
+			if (size == 0) size = xres;
+			mousedev->packet.dx = (value * xres - mousedev->old_x[0]) / size;
+			mousedev->old_x[0] = mousedev->packet.dx * size;
+			break;
 
-		list_for_each_entry(list, &(*mousedev)->list, node)
-			switch (type) {
-				case EV_ABS:
-					mousedev_abs_event(handle, list, code, value);
+		case ABS_Y:
+			size = dev->absmax[ABS_Y] - dev->absmin[ABS_Y];
+			if (size == 0) size = yres;
+			mousedev->packet.dy = (value * yres - mousedev->old_y[0]) / size;
+			mousedev->old_y[0] = mousedev->packet.dy * size;
 			break;
+	}
+}
 
-				case EV_REL:
+static void mousedev_rel_event(struct mousedev *mousedev, unsigned int code, int value)
+{
 	switch (code) {
-						case REL_X:	list->dx += value; break;
-						case REL_Y:	list->dy -= value; break;
-						case REL_WHEEL:	if (list->mode) list->dz -= value; break;
+		case REL_X:	mousedev->packet.dx += value; break;
+		case REL_Y:	mousedev->packet.dy -= value; break;
+		case REL_WHEEL:	mousedev->packet.dz -= value; break;
 	}
-					break;
+}
 
-				case EV_KEY:
-					if (code == BTN_TOUCH && test_bit(BTN_TOOL_FINGER, handle->dev->keybit)) {
-						/* Handle touchpad data */
-						list->touch = value;
-						if (!list->touch)
-							list->pkt_count = 0;
-						break;
-					}
+static void mousedev_key_event(struct mousedev *mousedev, unsigned int code, int value)
+{
+	int index;
 
 	switch (code) {
 		case BTN_TOUCH:
 		case BTN_0:
 		case BTN_FORWARD:
 		case BTN_LEFT:		index = 0; break;
-						case BTN_4:
-						case BTN_EXTRA:  if (list->mode == 2) { index = 4; break; }
 		case BTN_STYLUS:
 		case BTN_1:
 		case BTN_RIGHT:		index = 1; break;
-						case BTN_3:
-						case BTN_BACK:
-						case BTN_SIDE:   if (list->mode == 2) { index = 3; break; }
 		case BTN_2:
 		case BTN_STYLUS2:
 		case BTN_MIDDLE:	index = 2; break;
+		case BTN_3:
+		case BTN_BACK:
+		case BTN_SIDE:		index = 3; break;
+		case BTN_4:
+		case BTN_EXTRA:		index = 4; break;
 		default: 		return;
 	}
-					switch (value) {
-						case 0: clear_bit(index, &list->buttons); break;
-						case 1: set_bit(index, &list->buttons); break;
-						case 2: return;
-					}
-					break;
 
-				case EV_SYN:
-					switch (code) {
-						case SYN_REPORT:
-							if (list->touch) {
-								list->pkt_count++;
-								/* Input system eats duplicate events,
-								 * but we need all of them to do correct
-								 * averaging so apply present one forward
-								 */
-								fx(0) = fx(1);
-								fy(0) = fy(1);
+	if (value) {
+		set_bit(index, &mousedev->buttons);
+		set_bit(index, &mousedev_mix.buttons);
+	} else {
+		clear_bit(index, &mousedev->buttons);
+		clear_bit(index, &mousedev_mix.buttons);
 	}
+}
 
+static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_motion *packet)
+{
+	struct mousedev_list *list;
+
+	list_for_each_entry(list, &mousedev->list, node) {
+		list->dx += packet->dx;
+		list->dy += packet->dy;
+		list->dz += packet->dz;
+		list->buttons = mousedev->buttons;
 		list->ready = 1;
 		kill_fasync(&list->fasync, SIGIO, POLL_IN);
-							wake = 1;
+	}
+
+	wake_up_interruptible(&mousedev->wait);
+}
+
+static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
+{
+	struct mousedev *mousedev = handle->private;
+
+	switch (type) {
+		case EV_ABS:
+			/* Ignore joysticks */
+			if (test_bit(BTN_TRIGGER, handle->dev->keybit))
+				return;
+
+			if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit))
+				mousedev_touchpad_event(mousedev, code, value);
+			else
+				mousedev_abs_event(handle->dev, mousedev, code, value);
+
 			break;
+
+		case EV_REL:
+			mousedev_rel_event(mousedev, code, value);
+			break;
+
+		case EV_KEY:
+			if (value != 2) {
+				if (code == BTN_TOUCH && test_bit(BTN_TOOL_FINGER, handle->dev->keybit)) {
+					/* Handle touchpad data */
+					mousedev->touch = value;
+					if (!mousedev->touch)
+						mousedev->pkt_count = 0;
 				}
+				else
+					mousedev_key_event(mousedev, code, value);
+			}
+			break;
+
+		case EV_SYN:
+			if (code == SYN_REPORT) {
+				if (mousedev->touch) {
+					mousedev->pkt_count++;
+					/* Input system eats duplicate events, but we need all of them
+					 * to do correct averaging so apply present one forward
+			 		 */
+					fx(0) = fx(1);
+					fy(0) = fy(1);
 				}
 
-		if (wake)
-			wake_up_interruptible(&((*mousedev)->wait));
+				mousedev_notify_readers(mousedev, &mousedev->packet);
+				mousedev_notify_readers(&mousedev_mix, &mousedev->packet);
 
-		mousedev++;
+				memset(&mousedev->packet, 0, sizeof(struct mousedev_motion));
+			}
+			break;
 	}
 }
 
@@ -326,6 +355,8 @@ static void mousedev_packet(struct mousedev_list *list, unsigned char off)
 		list->dz -= list->ps2[off + 3];
 		list->ps2[off + 3] = (list->ps2[off + 3] & 0x0f) | ((list->buttons & 0x18) << 1);
 		list->bufsiz++;
+	} else {
+		list->ps2[off] |= ((list->buttons & 0x10) >> 3) | ((list->buttons & 0x08) >> 1);
 	}
 
 	if (list->mode == 1) {
@@ -391,9 +422,9 @@ static ssize_t mousedev_write(struct file * file, const char __user * buffer, si
 				list->impsseq = 0;
 				list->imexseq = 0;
 				list->mode = 0;
-				list->ps2[0] = 0xaa;
-				list->ps2[1] = 0x00;
-				list->bufsiz = 2;
+				list->ps2[1] = 0xaa;
+				list->ps2[2] = 0x00;
+				list->bufsiz = 3;
 				break;
 		}
 
@@ -553,6 +584,7 @@ static struct input_handler mousedev_handler = {
 static struct miscdevice psaux_mouse = {
 	PSMOUSE_MINOR, "psaux", &mousedev_fops
 };
+static int psaux_registered;
 #endif
 
 static int __init mousedev_init(void)
@@ -572,7 +604,7 @@ static int __init mousedev_init(void)
 				NULL, "mice");
 
 #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
-	if (!(mousedev_mix.misc = !misc_register(&psaux_mouse)))
+	if (!(psaux_registered = !misc_register(&psaux_mouse)))
 		printk(KERN_WARNING "mice: could not misc_register the device\n");
 #endif
 
@@ -584,7 +616,7 @@ static int __init mousedev_init(void)
 static void __exit mousedev_exit(void)
 {
 #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
-	if (mousedev_mix.misc)
+	if (psaux_registered)
 		misc_deregister(&psaux_mouse);
 #endif
 	devfs_remove("input/mice");

drivers/input/power.c

@@ -172,3 +172,4 @@ module_exit(power_exit);
 
 MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
 MODULE_DESCRIPTION("Input Power Management driver");
+MODULE_LICENSE("GPL");

drivers/input/serio/98kbd-io.c

@@ -51,7 +51,7 @@ spinlock_t kbd98io_lock = SPIN_LOCK_UNLOCKED;
 static struct serio kbd98_port;
 extern struct pt_regs *kbd_pt_regs;
 
-static void kbd98io_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t kbd98io_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 
 /*
  * kbd98_flush() flushes all data that may be in the keyboard buffers
@@ -143,7 +143,7 @@ static struct serio kbd98_port =
  * to the upper layers.
  */
 
-static void kbd98io_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t kbd98io_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	unsigned long flags;
 	unsigned char data;
@@ -154,6 +154,7 @@ static void kbd98io_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	spin_unlock_irqrestore(&kbd98io_lock, flags);
 	serio_interrupt(&kbd98_port, data, 0, regs);
 
+	return IRQ_HANDLED;
 }
 
 int __init kbd98io_init(void)

drivers/input/serio/i8042.c

@@ -474,8 +474,17 @@ static int i8042_enable_mux_mode(struct i8042_values *values, unsigned char *mux
 	if (i8042_command(&param, I8042_CMD_AUX_LOOP) || param != 0xa9)
 		return -1;
 	param = 0xa4;
-	if (i8042_command(&param, I8042_CMD_AUX_LOOP) || param == 0x5b)
+	if (i8042_command(&param, I8042_CMD_AUX_LOOP) || param == 0x5b) {
+
+/*
+ * Do another loop test with the 0x5a value. Doing anything else upsets
+ * Profusion/ServerWorks OSB4 chipsets.
+ */
+
+		param = 0x5a;
+		i8042_command(&param, I8042_CMD_AUX_LOOP);
 		return -1;
+	}
 
 	if (mux_version)
 		*mux_version = ~param;
@@ -532,8 +541,8 @@ static int __init i8042_check_mux(struct i8042_values *values)
 		return -1;
 
 	/* Workaround for broken chips which seem to support MUX, but in reality don't. */
-	/* They all report version 12.10 */
-	if (mux_version == 0xCA)
+	/* They all report version 10.12 */
+	if (mux_version == 0xAC)
 		return -1;
 
 	printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
@@ -868,7 +877,7 @@ static int i8042_controller_resume(void)
 static int i8042_notify_sys(struct notifier_block *this, unsigned long code,
         		    void *unused)
 {
-        if (code==SYS_DOWN || code==SYS_HALT) 
+        if (code == SYS_DOWN || code == SYS_HALT)
         	i8042_controller_cleanup();
         return NOTIFY_DONE;
 }
@@ -997,8 +1006,6 @@ void __exit i8042_exit(void)
 		sysdev_class_unregister(&kbc_sysclass);
 	}
 
-	del_timer_sync(&i8042_timer);
-
 	i8042_controller_cleanup();
 
 	if (i8042_kbd_values.exists)
@@ -1010,6 +1017,7 @@ void __exit i8042_exit(void)
 	for (i = 0; i < 4; i++)
 		if (i8042_mux_values[i].exists)
 			serio_unregister_port(i8042_mux_port + i);
+	del_timer_sync(&i8042_timer);
 
 	i8042_platform_exit();
 }

drivers/input/serio/parkbd.c

@@ -86,20 +86,9 @@ static int parkbd_write(struct serio *port, unsigned char c)
 	return 0;
 }
 
-static int parkbd_open(struct serio *port)
-{
-	return 0;
-}
-
-static void parkbd_close(struct serio *port)
-{
-}
-
 static struct serio parkbd_port =
 {
 	.write	= parkbd_write,
-	.open	= parkbd_open,
-	.close	= parkbd_close,
 	.name	= parkbd_name,
 	.phys	= parkbd_phys,
 };

drivers/input/serio/q40kbd.c

@@ -47,23 +47,12 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("Q40 PS/2 keyboard controller driver");
 MODULE_LICENSE("GPL");
 
-
-static int q40kbd_open(struct serio *port)
-{
-	return 0;
-}
-static void q40kbd_close(struct serio *port)
-{
-}
-
 static struct serio q40kbd_port =
 {
 	.type	= SERIO_8042,
 	.name	= "Q40 kbd port",
 	.phys	= "Q40",
 	.write	= NULL,
-	.open	= q40kbd_open,
-	.close	= q40kbd_close,
 };
 
 static irqreturn_t q40kbd_interrupt(int irq, void *dev_id,

drivers/input/serio/serio.c

@@ -293,7 +293,7 @@ void serio_unregister_device(struct serio_dev *dev)
 int serio_open(struct serio *serio, struct serio_dev *dev)
 {
 	serio->dev = dev;
-	if (serio->open(serio)) {
+	if (serio->open && serio->open(serio)) {
 		serio->dev = NULL;
 		return -1;
 	}
@@ -303,6 +303,7 @@ int serio_open(struct serio *serio, struct serio_dev *dev)
 /* called from serio_dev->connect/disconnect methods under serio_sem */
 void serio_close(struct serio *serio)
 {
+	if (serio->close)
 		serio->close(serio);
 	serio->dev = NULL;
 }

drivers/input/serio/serport.c

@@ -48,11 +48,6 @@ static int serport_serio_write(struct serio *serio, unsigned char data)
 	return -(serport->tty->driver->write(serport->tty, 0, &data, 1) != 1);
 }
 
-static int serport_serio_open(struct serio *serio)
-{
-        return 0;
-}
-
 static void serport_serio_close(struct serio *serio)
 {
 	struct serport *serport = serio->driver;
@@ -87,7 +82,6 @@ static int serport_ldisc_open(struct tty_struct *tty)
 
 	serport->serio.type = SERIO_RS232;
 	serport->serio.write = serport_serio_write;
-	serport->serio.open = serport_serio_open;
 	serport->serio.close = serport_serio_close;
 	serport->serio.driver = serport;
 

drivers/input/touchscreen/gunze.c

@@ -125,11 +125,9 @@ static void gunze_connect(struct serio *serio, struct serio_dev *dev)
 
 	init_input_dev(&gunze->dev);
 	gunze->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
-	gunze->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
 	gunze->dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
-
-	gunze->dev.absmin[ABS_X] = 96;   gunze->dev.absmin[ABS_Y] = 72;
-	gunze->dev.absmax[ABS_X] = 4000; gunze->dev.absmax[ABS_Y] = 3000;
+	input_set_abs_params(&gunze->dev, ABS_X, 96, 4000, 0, 0);
+	input_set_abs_params(&gunze->dev, ABS_Y, 72, 3000, 0, 0);
 
 	gunze->serio = serio;
 	serio->private = gunze;

drivers/input/touchscreen/h3600_ts_input.c

@@ -45,6 +45,10 @@
 #include <asm/arch/hardware.h>
 #include <asm/arch/irqs.h>
 
+MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
+MODULE_DESCRIPTION("H3600 touchscreen driver");
+MODULE_LICENSE("GPL");
+
 /*
  * Definitions & global arrays.
  */
@@ -103,7 +107,7 @@ struct h3600_dev {
 	char phys[32];
 };
 
-static void action_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t action_button_handler(int irq, void *dev_id, struct pt_regs *regs)
 {
         int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
 	struct input_dev *dev = (struct input_dev *) dev_id;
@@ -111,9 +115,11 @@ static void action_button_handler(int irq, void *dev_id, struct pt_regs *regs)
 	input_regs(dev, regs);
 	input_report_key(dev, KEY_ENTER, down);
 	input_sync(dev);
+
+	return IRQ_HANDLED;
 }
 
-static void npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
 {
         int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
 	struct input_dev *dev = (struct input_dev *) dev_id;
@@ -126,6 +132,8 @@ static void npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
 	input_report_key(dev, KEY_SUSPEND, 1);
 	input_report_key(dev, KEY_SUSPEND, down);
 	input_sync(dev);
+
+	return IRQ_HANDLED;
 }
 
 #ifdef CONFIG_PM
@@ -141,7 +149,7 @@ enum flite_pwr {
  * h3600_flite_power: enables or disables power to frontlight, using last bright */
 unsigned int h3600_flite_power(struct input_dev *dev, enum flite_pwr pwr)
 {
-	unsigned char brightness = ((pwr==FLITE_PWR_OFF) ? 0:flite_brightness);
+	unsigned char brightness = (pwr == FLITE_PWR_OFF) ? 0 : flite_brightness;
 	struct h3600_dev *ts = dev->private;
 
 	/* Must be in this order */
@@ -317,8 +325,8 @@ static int state;
 #define STATE_DATA      2       /* state where we decode data */
 #define STATE_EOF       3       /* state where we decode checksum or EOF */
 
-static void h3600ts_interrupt(struct serio *serio, unsigned char data,
-                              unsigned int flags)
+static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
+                                     unsigned int flags, struct pt_regs *regs)
 {
         struct h3600_dev *ts = serio->private;
 
@@ -329,7 +337,7 @@ static void h3600ts_interrupt(struct serio *serio, unsigned char data,
 		case STATE_SOF:
         		if (data == CHAR_SOF)
                 		state = STATE_ID;
-			return;
+			break;
         	case STATE_ID:
 			ts->event = (data & 0xf0) >> 4;
 			ts->len = (data & 0xf);
@@ -339,7 +347,7 @@ static void h3600ts_interrupt(struct serio *serio, unsigned char data,
                         	break;
 			}
 			ts->chksum = data;
-                	state=(ts->len > 0 ) ? STATE_DATA : STATE_EOF;
+                	state = (ts->len > 0) ? STATE_DATA : STATE_EOF;
 			break;
 		case STATE_DATA:
 			ts->chksum += data;
@@ -349,13 +357,15 @@ static void h3600ts_interrupt(struct serio *serio, unsigned char data,
 			break;
 		case STATE_EOF:
                 	state = STATE_SOF;
-                	if (data == CHAR_EOF || data == ts->chksum )
-				h3600ts_process_packet(ts);
+                	if (data == CHAR_EOF || data == ts->chksum)
+				h3600ts_process_packet(ts, regs);
                 	break;
         	default:
                 	printk("Error3\n");
                 	break;
 	}
+
+	return IRQ_HANDLED;
 }
 
 /*
@@ -378,8 +388,8 @@ static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
 	init_input_dev(&ts->dev);
 
 	/* Device specific stuff */
-        set_GPIO_IRQ_edge( GPIO_BITSY_ACTION_BUTTON, GPIO_BOTH_EDGES );
-        set_GPIO_IRQ_edge( GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE );
+        set_GPIO_IRQ_edge(GPIO_BITSY_ACTION_BUTTON, GPIO_BOTH_EDGES);
+        set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE);
 
         if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
 			SA_SHIRQ | SA_INTERRUPT | SA_SAMPLE_RANDOM,
@@ -397,17 +407,12 @@ static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
 		kfree(ts);
 		return;
 	}
+
 	/* Now we have things going we setup our input device */
 	ts->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_LED) | BIT(EV_PWR);
-	ts->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
 	ts->dev.ledbit[0] = BIT(LED_SLEEP);
-
-	ts->dev.absmin[ABS_X] = 60;   ts->dev.absmin[ABS_Y] = 35;
-	ts->dev.absmax[ABS_X] = 985; ts->dev.absmax[ABS_Y] = 1024;
-	ts->dev.absfuzz[ABS_X] = 0; ts->dev.absfuzz[ABS_Y] = 0;
-
-	ts->serio = serio;
-	serio->private = ts;
+	input_set_abs_params(&ts->dev, ABS_X, 60, 985, 0, 0);
+	input_set_abs_params(&ts->dev, ABS_Y, 35, 1024, 0, 0);
 
 	set_bit(KEY_RECORD, ts->dev.keybit);
 	set_bit(KEY_Q, ts->dev.keybit);
@@ -422,6 +427,9 @@ static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
 	ts->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
 	ts->dev.keybit[LONG(KEY_SUSPEND)] |= BIT(KEY_SUSPEND);
 
+	ts->serio = serio;
+	serio->private = ts;
+
 	sprintf(ts->phys, "%s/input0", serio->phys);
 
        	ts->dev.event = h3600ts_event;

drivers/video/sbuslib.c

@@ -122,6 +122,7 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 		cmap.red = &red;
 		cmap.green = &green;
 		cmap.blue = &blue;
+		cmap.transp = NULL;
 		for (i = 0; i < count; i++) {
 			int err;
 

include/asm-arm/cacheflush.h

@@ -291,17 +291,7 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr)
  * about to change to user space.  This is the same method as used on SPARC64.
  * See update_mmu_cache for the user space part.
  */
-extern void __flush_dcache_page(struct page *);
-
-static inline void flush_dcache_page(struct page *page)
-{
-	struct address_space *mapping = page_mapping(page);
-
-	if (mapping && !mapping_mapped(mapping))
-		set_bit(PG_dcache_dirty, &page->flags);
-	else
-		__flush_dcache_page(page);
-}
+extern void flush_dcache_page(struct page *);
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)

include/asm-ppc/pgtable.h

@@ -555,8 +555,12 @@ static inline void __ptep_set_access_flags(pte_t *ptep, pte_t entry, int dirty)
 		(_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW);
 	pte_update(ptep, 0, bits);
 }
+
 #define  ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-        __ptep_set_access_flags(__ptep, __entry, __dirty)
+	do {								   \
+		__ptep_set_access_flags(__ptep, __entry, __dirty);	   \
+		flush_tlb_page_nohash(__vma, __address);	       	   \
+	} while(0)
 
 /*
  * Macro to mark a page protection value as "uncacheable".

include/asm-ppc/tlbflush.h

@@ -29,6 +29,9 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 static inline void flush_tlb_page(struct vm_area_struct *vma,
 				unsigned long vmaddr)
 	{ _tlbie(vmaddr); }
+static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
+					 unsigned long vmaddr)
+	{ _tlbie(vmaddr); }
 static inline void flush_tlb_range(struct vm_area_struct *vma,
 				unsigned long start, unsigned long end)
 	{ __tlbia(); }
@@ -44,6 +47,9 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 static inline void flush_tlb_page(struct vm_area_struct *vma,
 				unsigned long vmaddr)
 	{ _tlbie(vmaddr); }
+static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
+					 unsigned long vmaddr)
+	{ _tlbie(vmaddr); }
 static inline void flush_tlb_range(struct mm_struct *mm,
 				unsigned long start, unsigned long end)
 	{ __tlbia(); }
@@ -56,6 +62,7 @@ struct mm_struct;
 struct vm_area_struct;
 extern void flush_tlb_mm(struct mm_struct *mm);
 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
+extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr);
 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 			    unsigned long end);
 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);

include/asm-ppc64/pgtable.h

@@ -428,7 +428,10 @@ static inline void __ptep_set_access_flags(pte_t *ptep, pte_t entry, int dirty)
 	:"cc");
 }
 #define  ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-        __ptep_set_access_flags(__ptep, __entry, __dirty)
+	do {								   \
+		__ptep_set_access_flags(__ptep, __entry, __dirty);	   \
+		flush_tlb_page_nohash(__vma, __address);	       	   \
+	} while(0)
 
 /*
  * Macro to mark a page protection value as "uncacheable".

include/asm-ppc64/tlbflush.h

@@ -6,6 +6,7 @@
  *
  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
  *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB
  *  - flush_tlb_range(vma, start, end) flushes a range of pages
  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
  *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
@@ -39,6 +40,7 @@ static inline void flush_tlb_pending(void)
 
 #define flush_tlb_mm(mm)			flush_tlb_pending()
 #define flush_tlb_page(vma, addr)		flush_tlb_pending()
+#define flush_tlb_page_nohash(vma, addr)       	do { } while (0)
 #define flush_tlb_range(vma, start, end) \
 		do { (void)(start); flush_tlb_pending(); } while (0)
 #define flush_tlb_kernel_range(start, end)	flush_tlb_pending()

include/linux/input.h

@@ -749,8 +749,6 @@ struct ff_effect {
 #define INPUT_KEYCODE(dev, scancode) ((dev->keycodesize == 1) ? ((u8*)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)
-
 #define SET_INPUT_KEYCODE(dev, scancode, val)			\
 		({	unsigned __old;				\
 		switch (dev->keycodesize) {			\
@@ -915,6 +913,12 @@ struct input_handle {
 #define to_handle(n) container_of(n,struct input_handle,d_node)
 #define to_handle_h(n) container_of(n,struct input_handle,h_node)
 
+static inline void init_input_dev(struct input_dev *dev)
+{
+	INIT_LIST_HEAD(&dev->h_list);
+	INIT_LIST_HEAD(&dev->node);
+}
+
 void input_register_device(struct input_dev *);
 void input_unregister_device(struct input_dev *);
 
@@ -932,14 +936,51 @@ int input_flush_device(struct input_handle* handle, struct file* file);
 
 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
 
-#define input_report_key(a,b,c) input_event(a, EV_KEY, b, !!(c))
-#define input_report_rel(a,b,c) input_event(a, EV_REL, b, c)
-#define input_report_abs(a,b,c) input_event(a, EV_ABS, b, c)
-#define input_report_ff(a,b,c)	input_event(a, EV_FF, b, c)
-#define input_report_ff_status(a,b,c)	input_event(a, EV_FF_STATUS, b, c)
-
-#define input_regs(a,b)		do { (a)->regs = (b); } while (0)
-#define input_sync(a)		do { input_event(a, EV_SYN, SYN_REPORT, 0); (a)->regs = NULL; } while (0)
+static inline void input_report_key(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_KEY, code, !!value);
+}
+
+static inline void input_report_rel(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_REL, code, value);
+}
+
+static inline void input_report_abs(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_ABS, code, value);
+}
+
+static inline void input_report_ff(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_FF, code, value);
+}
+
+static inline void input_report_ff_status(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_FF_STATUS, code, value);
+}
+
+static inline void input_regs(struct input_dev *dev, struct pt_regs *regs)
+{
+	dev->regs = regs;
+}
+
+static inline void input_sync(struct input_dev *dev)
+{
+	input_event(dev, EV_SYN, SYN_REPORT, 0);
+	dev->regs = NULL;
+}
+
+static inline void input_set_abs_params(struct input_dev *dev, int axis, int min, int max, int fuzz, int flat)
+{
+	dev->absmin[axis] = min;
+	dev->absmax[axis] = max;
+	dev->absfuzz[axis] = fuzz;
+	dev->absflat[axis] = flat;
+
+	dev->absbit[LONG(axis)] |= BIT(axis);
+}
 
 extern struct class_simple *input_class;
 

include/linux/netfilter.h

@@ -171,6 +171,12 @@ extern void nf_reinject(struct sk_buff *skb,
 			struct nf_info *info,
 			unsigned int verdict);
 
+extern inline struct ipt_target *
+ipt_find_target_lock(const char *name, int *error, struct semaphore *mutex);
+extern inline struct ip6t_target *
+ip6t_find_target_lock(const char *name, int *error, struct semaphore *mutex);
+extern inline struct arpt_target *
+arpt_find_target_lock(const char *name, int *error, struct semaphore *mutex);
 extern void (*ip_ct_attach)(struct sk_buff *, struct nf_ct_info *);
 
 #ifdef CONFIG_NETFILTER_DEBUG

include/linux/netfilter_arp.h

@@ -17,4 +17,5 @@
 #define NF_ARP_FORWARD	2
 #define NF_ARP_NUMHOOKS	3
 
+static DECLARE_MUTEX(arpt_mutex);
 #endif /* __LINUX_ARP_NETFILTER_H */

include/linux/netfilter_ipv4/ip_tables.h

@@ -283,6 +283,8 @@ struct ipt_get_entries
 	struct ipt_entry entrytable[0];
 };
 
+extern struct semaphore ipt_mutex;
+
 /* Standard return verdict, or do jump. */
 #define IPT_STANDARD_TARGET ""
 /* Error verdict. */
@@ -334,6 +336,7 @@ ipt_get_target(struct ipt_entry *e)
 /*
  *	Main firewall chains definitions and global var's definitions.
  */
+static DECLARE_MUTEX(ipt_mutex);
 #ifdef __KERNEL__
 
 #include <linux/init.h>
@@ -406,6 +409,11 @@ struct ipt_target
 	struct module *me;
 };
 
+extern struct ipt_target *
+ipt_find_target_lock(const char *name, int *error, struct semaphore *mutex);
+extern struct arpt_target *
+arpt_find_target_lock(const char *name, int *error, struct semaphore *mutex);
+
 extern int ipt_register_target(struct ipt_target *target);
 extern void ipt_unregister_target(struct ipt_target *target);
 

include/linux/netfilter_ipv6/ip6_tables.h

@@ -106,6 +106,8 @@ struct ip6t_counters
 	u_int64_t pcnt, bcnt;			/* Packet and byte counters */
 };
 
+static DECLARE_MUTEX(ip6t_mutex);
+
 /* Values for "flag" field in struct ip6t_ip6 (general ip6 structure). */
 #define IP6T_F_PROTO		0x01	/* Set if rule cares about upper 
 					   protocols */

include/linux/watchdog.h

@@ -10,6 +10,7 @@
 #define _LINUX_WATCHDOG_H
 
 #include <linux/ioctl.h>
+#include <linux/types.h>
 
 #define	WATCHDOG_IOCTL_BASE	'W'
 

include/net/tcp.h

@@ -970,6 +970,9 @@ extern int tcp_sync_mss(struct sock *sk, u32 pmtu);
 
 extern const char timer_bug_msg[];
 
+/* tcp_diag.c */
+extern void tcp_get_info(struct sock *, struct tcp_info *);
+
 /* Read 'sendfile()'-style from a TCP socket */
 typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *,
 				unsigned int, size_t);

kernel/sched.c

@@ -762,6 +762,13 @@ static int try_to_wake_up(task_t * p, unsigned int state, int sync)
 	load = source_load(cpu);
 	this_load = target_load(this_cpu);
 
+	/*
+	 * If sync wakeup then subtract the (maximum possible) effect of
+	 * the currently running task from the load of the current CPU:
+	 */
+	if (sync)
+		this_load -= SCHED_LOAD_SCALE;
+
 	/* Don't pull the task off an idle CPU to a busy one */
 	if (load < SCHED_LOAD_SCALE && load + this_load > SCHED_LOAD_SCALE
 			&& this_load > load)

net/ipv4/netfilter/arp_tables.c

@@ -56,7 +56,6 @@ do {								\
 #endif
 #define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
 
-static DECLARE_MUTEX(arpt_mutex);
 
 #define ASSERT_READ_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
@@ -388,12 +387,12 @@ find_inlist_lock(struct list_head *head,
 }
 #endif
 
-static inline struct arpt_table *find_table_lock(const char *name, int *error, struct semaphore *mutex)
+static inline struct arpt_table *arpt_find_table_lock(const char *name, int *error, struct semaphore *mutex)
 {
 	return find_inlist_lock(&arpt_tables, name, "arptable_", error, mutex);
 }
 
-static inline struct arpt_target *find_target_lock(const char *name, int *error, struct semaphore *mutex)
+struct arpt_target *arpt_find_target_lock(const char *name, int *error, struct semaphore *mutex)
 {
 	return find_inlist_lock(&arpt_target, name, "arpt_", error, mutex);
 }
@@ -543,7 +542,7 @@ static inline int check_entry(struct arpt_entry *e, const char *name, unsigned i
 	}
 
 	t = arpt_get_target(e);
-	target = find_target_lock(t->u.user.name, &ret, &arpt_mutex);
+	target = arpt_find_target_lock(t->u.user.name, &ret, &arpt_mutex);
 	if (!target) {
 		duprintf("check_entry: `%s' not found\n", t->u.user.name);
 		goto out;
@@ -843,7 +842,7 @@ static int get_entries(const struct arpt_get_entries *entries,
 	int ret;
 	struct arpt_table *t;
 
-	t = find_table_lock(entries->name, &ret, &arpt_mutex);
+	t = arpt_find_table_lock(entries->name, &ret, &arpt_mutex);
 	if (t) {
 		duprintf("t->private->number = %u\n",
 			 t->private->number);
@@ -909,7 +908,7 @@ static int do_replace(void __user *user, unsigned int len)
 
 	duprintf("arp_tables: Translated table\n");
 
-	t = find_table_lock(tmp.name, &ret, &arpt_mutex);
+	t = arpt_find_table_lock(tmp.name, &ret, &arpt_mutex);
 	if (!t)
 		goto free_newinfo_counters_untrans;
 
@@ -1002,7 +1001,7 @@ static int do_add_counters(void __user *user, unsigned int len)
 		goto free;
 	}
 
-	t = find_table_lock(tmp.name, &ret, &arpt_mutex);
+	t = arpt_find_table_lock(tmp.name, &ret, &arpt_mutex);
 	if (!t)
 		goto free;
 
@@ -1075,7 +1074,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 			break;
 		}
 		name[ARPT_TABLE_MAXNAMELEN-1] = '\0';
-		t = find_table_lock(name, &ret, &arpt_mutex);
+		t = arpt_find_table_lock(name, &ret, &arpt_mutex);
 		if (t) {
 			struct arpt_getinfo info;
 
@@ -1323,6 +1322,7 @@ static void __exit fini(void)
 EXPORT_SYMBOL(arpt_register_table);
 EXPORT_SYMBOL(arpt_unregister_table);
 EXPORT_SYMBOL(arpt_do_table);
+EXPORT_SYMBOL(arpt_find_target_lock);
 EXPORT_SYMBOL(arpt_register_target);
 EXPORT_SYMBOL(arpt_unregister_target);
 

net/ipv4/netfilter/ip_tables.c

@@ -61,9 +61,6 @@ do {								\
 #endif
 #define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
 
-/* Mutex protects lists (only traversed in user context). */
-static DECLARE_MUTEX(ipt_mutex);
-
 /* Must have mutex */
 #define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
@@ -461,7 +458,7 @@ find_inlist_lock(struct list_head *head,
 #endif
 
 static inline struct ipt_table *
-find_table_lock(const char *name, int *error, struct semaphore *mutex)
+ipt_find_table_lock(const char *name, int *error, struct semaphore *mutex)
 {
 	return find_inlist_lock(&ipt_tables, name, "iptable_", error, mutex);
 }
@@ -472,8 +469,8 @@ find_match_lock(const char *name, int *error, struct semaphore *mutex)
 	return find_inlist_lock(&ipt_match, name, "ipt_", error, mutex);
 }
 
-static inline struct ipt_target *
-find_target_lock(const char *name, int *error, struct semaphore *mutex)
+struct ipt_target *
+ipt_find_target_lock(const char *name, int *error, struct semaphore *mutex)
 {
 	return find_inlist_lock(&ipt_target, name, "ipt_", error, mutex);
 }
@@ -688,7 +685,7 @@ check_entry(struct ipt_entry *e, const char *name, unsigned int size,
 		goto cleanup_matches;
 
 	t = ipt_get_target(e);
-	target = find_target_lock(t->u.user.name, &ret, &ipt_mutex);
+	target = ipt_find_target_lock(t->u.user.name, &ret, &ipt_mutex);
 	if (!target) {
 		duprintf("check_entry: `%s' not found\n", t->u.user.name);
 		goto cleanup_matches;
@@ -1025,7 +1022,7 @@ get_entries(const struct ipt_get_entries *entries,
 	int ret;
 	struct ipt_table *t;
 
-	t = find_table_lock(entries->name, &ret, &ipt_mutex);
+	t = ipt_find_table_lock(entries->name, &ret, &ipt_mutex);
 	if (t) {
 		duprintf("t->private->number = %u\n",
 			 t->private->number);
@@ -1092,7 +1089,7 @@ do_replace(void __user *user, unsigned int len)
 
 	duprintf("ip_tables: Translated table\n");
 
-	t = find_table_lock(tmp.name, &ret, &ipt_mutex);
+	t = ipt_find_table_lock(tmp.name, &ret, &ipt_mutex);
 	if (!t)
 		goto free_newinfo_counters_untrans;
 
@@ -1195,7 +1192,7 @@ do_add_counters(void __user *user, unsigned int len)
 		goto free;
 	}
 
-	t = find_table_lock(tmp.name, &ret, &ipt_mutex);
+	t = ipt_find_table_lock(tmp.name, &ret, &ipt_mutex);
 	if (!t)
 		goto free;
 
@@ -1270,7 +1267,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 			break;
 		}
 		name[IPT_TABLE_MAXNAMELEN-1] = '\0';
-		t = find_table_lock(name, &ret, &ipt_mutex);
+		t = ipt_find_table_lock(name, &ret, &ipt_mutex);
 		if (t) {
 			struct ipt_getinfo info;
 
@@ -1855,6 +1852,7 @@ EXPORT_SYMBOL(ipt_unregister_match);
 EXPORT_SYMBOL(ipt_do_table);
 EXPORT_SYMBOL(ipt_register_target);
 EXPORT_SYMBOL(ipt_unregister_target);
+EXPORT_SYMBOL(ipt_find_target_lock);
 
 module_init(init);
 module_exit(fini);

net/ipv6/netfilter/ip6_tables.c

@@ -66,8 +66,6 @@ do {								\
 #endif
 #define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
 
-/* Mutex protects lists (only traversed in user context). */
-static DECLARE_MUTEX(ip6t_mutex);
 
 /* Must have mutex */
 #define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
@@ -544,7 +542,7 @@ find_inlist_lock(struct list_head *head,
 #endif
 
 static inline struct ip6t_table *
-find_table_lock(const char *name, int *error, struct semaphore *mutex)
+ip6t_find_table_lock(const char *name, int *error, struct semaphore *mutex)
 {
 	return find_inlist_lock(&ip6t_tables, name, "ip6table_", error, mutex);
 }
@@ -555,8 +553,8 @@ find_match_lock(const char *name, int *error, struct semaphore *mutex)
 	return find_inlist_lock(&ip6t_match, name, "ip6t_", error, mutex);
 }
 
-static inline struct ip6t_target *
-find_target_lock(const char *name, int *error, struct semaphore *mutex)
+struct ip6t_target *
+ip6t_find_target_lock(const char *name, int *error, struct semaphore *mutex)
 {
 	return find_inlist_lock(&ip6t_target, name, "ip6t_", error, mutex);
 }
@@ -771,7 +769,7 @@ check_entry(struct ip6t_entry *e, const char *name, unsigned int size,
 		goto cleanup_matches;
 
 	t = ip6t_get_target(e);
-	target = find_target_lock(t->u.user.name, &ret, &ip6t_mutex);
+	target = ip6t_find_target_lock(t->u.user.name, &ret, &ip6t_mutex);
 	if (!target) {
 		duprintf("check_entry: `%s' not found\n", t->u.user.name);
 		goto cleanup_matches;
@@ -1111,7 +1109,7 @@ get_entries(const struct ip6t_get_entries *entries,
 	int ret;
 	struct ip6t_table *t;
 
-	t = find_table_lock(entries->name, &ret, &ip6t_mutex);
+	t = ip6t_find_table_lock(entries->name, &ret, &ip6t_mutex);
 	if (t) {
 		duprintf("t->private->number = %u\n",
 			 t->private->number);
@@ -1174,7 +1172,7 @@ do_replace(void __user *user, unsigned int len)
 
 	duprintf("ip_tables: Translated table\n");
 
-	t = find_table_lock(tmp.name, &ret, &ip6t_mutex);
+	t = ip6t_find_table_lock(tmp.name, &ret, &ip6t_mutex);
 	if (!t)
 		goto free_newinfo_counters_untrans;
 
@@ -1276,7 +1274,7 @@ do_add_counters(void __user *user, unsigned int len)
 		goto free;
 	}
 
-	t = find_table_lock(tmp.name, &ret, &ip6t_mutex);
+	t = ip6t_find_table_lock(tmp.name, &ret, &ip6t_mutex);
 	if (!t)
 		goto free;
 
@@ -1351,7 +1349,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 			break;
 		}
 		name[IP6T_TABLE_MAXNAMELEN-1] = '\0';
-		t = find_table_lock(name, &ret, &ip6t_mutex);
+		t = ip6t_find_table_lock(name, &ret, &ip6t_mutex);
 		if (t) {
 			struct ip6t_getinfo info;
 
@@ -1964,6 +1962,7 @@ static void __exit fini(void)
 EXPORT_SYMBOL(ip6t_register_table);
 EXPORT_SYMBOL(ip6t_unregister_table);
 EXPORT_SYMBOL(ip6t_do_table);
+EXPORT_SYMBOL(ip6t_find_target_lock);
 EXPORT_SYMBOL(ip6t_register_match);
 EXPORT_SYMBOL(ip6t_unregister_match);
 EXPORT_SYMBOL(ip6t_register_target);

net/sunrpc/auth_gss/auth_gss.c

@@ -493,7 +493,7 @@ gss_pipe_downcall(struct file *filp, const char *src, size_t mlen)
 		spin_unlock(&gss_auth->lock);
 	rpc_release_client(clnt);
 	kfree(obj.data);
-	dprintk("RPC:      gss_pipe_downcall returning length %u\n", mlen);
+	dprintk("RPC:      gss_pipe_downcall returning length %Zu\n", mlen);
 	return mlen;
 err:
 	if (ctx)