Manual merge.

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>

Documentation/input/joystick-parport.txt

@@ -335,6 +335,7 @@ controller (compatible with DirectPadPro):
  * Analog PSX Pad (red mode)
  * Analog PSX Pad (green mode)
  * PSX Rumble Pad
+ * PSX DDR Pad
 
 2.4 Sega
 ~~~~~~~~
@@ -452,14 +453,22 @@ uses the following kernel/module command line:
 	  5  | Multisystem 2-button joystick
 	  6  | N64 pad
 	  7  | Sony PSX controller
+	  8  | Sony PSX DDR controller
 
-  The exact type of the PSX controller type is autoprobed, so you must have
-your controller plugged in before initializing.
+  The exact type of the PSX controller type is autoprobed when used so
+hot swapping should work (but is not recomended).
 
   Should you want to use more than one of parallel ports at once, you can use
 gamecon.map2 and gamecon.map3 as additional command line parameters for two
 more parallel ports.
 
+  There are two options specific to PSX driver portion.  gamecon.psx_delay sets
+the command delay when talking to the controllers. The default of 25 should
+work but you can try lowering it for better performace. If your pads don't
+respond try raising it untill they work. Setting the type to 8 allows the
+driver to be used with Dance Dance Revolution or similar games. Arrow keys are
+registered as key presses instead of X and Y axes.
+
 3.2 db9.c
 ~~~~~~~~~
   Apart from making an interface, there is nothing difficult on using the

Documentation/kernel-parameters.txt

@@ -669,6 +669,12 @@ running once the system is up.
 
 	mga=		[HW,DRM]
 
+	mousedev.tap_time=
+			[MOUSE] Maximum time between finger touching and
+			leaving touchpad surface for touch to be considered
+			a tap and be reported as a left button click (for
+			touchpads working in absolute mode only).
+			Format: <msecs>
 	mousedev.xres=	[MOUSE] Horizontal screen resolution, used for devices
 			reporting absolute coordinates, such as tablets
 	mousedev.yres=	[MOUSE] Vertical screen resolution, used for devices

MAINTAINERS

@@ -1063,6 +1063,13 @@ M:	lethal@chaoticdreams.org
 L:	linux-fbdev-devel@lists.sourceforge.net
 S:	Maintained
 
+INPUT (KEYBOARD, MOUSE, JOYSTICK) DRIVERS
+P:	Vojtech Pavlik
+M:	vojtech@suse.cz
+L:	linux-input@atrey.karlin.mff.cuni.cz
+L:	linux-joystick@atrey.karlin.mff.cuni.cz
+S:	Maintained
+
 INTEL 810/815 FRAMEBUFFER DRIVER
 P:      Antonino Daplas
 M:      adaplas@pol.net
@@ -1187,13 +1194,6 @@ L:	jfs-discussion@oss.software.ibm.com
 W:	http://oss.software.ibm.com/jfs/
 S:	Supported
 
-JOYSTICK DRIVER
-P:	Vojtech Pavlik
-M:	vojtech@suse.cz
-L:	linux-joystick@atrey.karlin.mff.cuni.cz
-W:	http://www.suse.cz/development/joystick/
-S:	Maintained
-
 KCONFIG
 P:	Roman Zippel
 M:	zippel@linux-m68k.org
@@ -2176,12 +2176,11 @@ M:	dbrownell@users.sourceforge.net
 L:	linux-usb-devel@lists.sourceforge.net
 S:	Maintained
 
-USB HID/HIDBP/INPUT DRIVERS
+USB HID/HIDBP DRIVERS
 P:	Vojtech Pavlik
 M:	vojtech@suse.cz
 L:	linux-usb-users@lists.sourceforge.net
 L:	linux-usb-devel@lists.sourceforge.net
-W:	http://www.suse.cz/development/input/
 S:	Maintained
 
 USB HUB DRIVER

drivers/Makefile

@@ -15,6 +15,9 @@ obj-$(CONFIG_PNP)		+= pnp/
 # char/ comes before serial/ etc so that the VT console is the boot-time
 # default.
 obj-y				+= char/
+# we also need input/serio early so serio bus is initialized by the time
+# serial drivers start registering their serio ports
+obj-$(CONFIG_SERIO)		+= input/serio/
 obj-y				+= serial/
 obj-$(CONFIG_PARPORT)		+= parport/
 obj-y				+= base/ block/ misc/ net/ media/
@@ -39,7 +42,6 @@ obj-$(CONFIG_USB)		+= usb/
 obj-$(CONFIG_USB_GADGET)	+= usb/gadget/
 obj-$(CONFIG_INPUT)		+= input/
 obj-$(CONFIG_GAMEPORT)		+= input/gameport/
-obj-$(CONFIG_SERIO)		+= input/serio/
 obj-$(CONFIG_I2O)		+= message/
 obj-$(CONFIG_I2C)		+= i2c/
 obj-$(CONFIG_W1)		+= w1/

drivers/char/keyboard.c

@@ -123,7 +123,7 @@ int shift_state = 0;
  */
 
 static struct input_handler kbd_handler;
-static unsigned long key_down[256/BITS_PER_LONG];	/* keyboard key bitmap */
+static unsigned long key_down[NBITS(KEY_MAX)];		/* keyboard key bitmap */
 static unsigned char shift_down[NR_SHIFT];		/* shift state counters.. */
 static int dead_key_next;
 static int npadch = -1;					/* -1 or number assembled on pad */
@@ -142,7 +142,7 @@ static struct ledptr {
 /* Simple translation table for the SysRq keys */
 
 #ifdef CONFIG_MAGIC_SYSRQ
-unsigned char kbd_sysrq_xlate[128] =
+unsigned char kbd_sysrq_xlate[KEY_MAX] =
         "\000\0331234567890-=\177\t"                    /* 0x00 - 0x0f */
         "qwertyuiop[]\r\000as"                          /* 0x10 - 0x1f */
         "dfghjkl;'`\000\\zxcv"                          /* 0x20 - 0x2f */
@@ -941,6 +941,9 @@ void kbd_refresh_leds(struct input_handle *handle)
 
 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64) || defined(CONFIG_PARISC) || defined(CONFIG_SUPERH)
 
+#define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
+			((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
+
 static unsigned short x86_keycodes[256] =
 	{ 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 	 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
@@ -1007,6 +1010,8 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode,
 
 #else
 
+#define HW_RAW(dev)	0
+
 #warning "Cannot generate rawmode keyboard for your architecture yet."
 
 static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag)
@@ -1019,7 +1024,15 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char u
 }
 #endif
 
-void kbd_keycode(unsigned int keycode, int down, struct pt_regs *regs)
+void kbd_rawcode(unsigned char data)
+{
+	struct vc_data *vc = vc_cons[fg_console].d;
+	kbd = kbd_table + fg_console;
+	if (kbd->kbdmode == VC_RAW)
+		put_queue(vc, data);
+}
+
+void kbd_keycode(unsigned int keycode, int down, int hw_raw, struct pt_regs *regs)
 {
 	struct vc_data *vc = vc_cons[fg_console].d;
 	unsigned short keysym, *key_map;
@@ -1053,7 +1066,7 @@ void kbd_keycode(unsigned int keycode, int down, struct pt_regs *regs)
 		return;
 #endif /* CONFIG_MAC_EMUMOUSEBTN */
 
-	if ((raw_mode = (kbd->kbdmode == VC_RAW)))
+	if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw)
 		if (emulate_raw(vc, keycode, !down << 7))
 			if (keycode < BTN_MISC)
 				printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode);
@@ -1119,6 +1132,9 @@ void kbd_keycode(unsigned int keycode, int down, struct pt_regs *regs)
 		return;
 	}
 
+	if (keycode > NR_KEYS)
+		return;
+
 	keysym = key_map[keycode];
 	type = KTYP(keysym);
 
@@ -1148,11 +1164,12 @@ void kbd_keycode(unsigned int keycode, int down, struct pt_regs *regs)
 }
 
 static void kbd_event(struct input_handle *handle, unsigned int event_type, 
-		      unsigned int keycode, int down)
+		      unsigned int event_code, int value)
 {
-	if (event_type != EV_KEY)
-		return;
-	kbd_keycode(keycode, down, handle->dev->regs);
+	if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
+		kbd_rawcode(value);
+	if (event_type == EV_KEY)
+		kbd_keycode(event_code, value, HW_RAW(handle->dev), handle->dev->regs);
 	tasklet_schedule(&keyboard_tasklet);
 	do_poke_blanked_console = 1;
 	schedule_console_callback();

drivers/input/gameport/emu10k1-gp.c

@@ -50,8 +50,11 @@ struct emu {
 };
 
 static struct pci_device_id emu_tbl[] = {
+ 
 	{ 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
 	{ 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
+	{ 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
+	{ 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
 	{ 0, }
 };
 

drivers/input/joydev.c

@@ -232,8 +232,10 @@ static ssize_t joydev_read(struct file *file, char __user *buf, size_t count, lo
 		&& list->head == list->tail && (file->f_flags & O_NONBLOCK))
 			return -EAGAIN;
 
-	retval = wait_event_interruptible(list->joydev->wait, list->joydev->exist
-		&& (list->startup < joydev->nabs + joydev->nkey || list->head != list->tail));
+	retval = wait_event_interruptible(list->joydev->wait,
+		 			  !list->joydev->exist ||
+					  list->startup < joydev->nabs + joydev->nkey ||
+					  list->head != list->tail);
 
 	if (retval)
 		return retval;

drivers/input/joystick/Kconfig

@@ -247,7 +247,7 @@ config JOYSTICK_AMIGA
 	  To compile this driver as a module, choose M here: the
 	  module will be called amijoy.
 
-config INPUT_JOYDUMP
+config JOYSTICK_JOYDUMP
 	tristate "Gameport data dumper"
 	depends on INPUT && INPUT_JOYSTICK
 	help

drivers/input/joystick/gamecon.c

 /*
- * $Id: gamecon.c,v 1.22 2002/07/01 15:42:25 vojtech Exp $
+ * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
  *
- *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *  Copyright (c) 1999-2004 	Vojtech Pavlik <vojtech@suse.cz>
+ *  Copyright (c) 2004 		Peter Nelson <rufus-kernel@hackish.org>
  *
  *  Based on the work of:
  *  	Andree Borrmann		John Dahlstrom
  *  	David Kuder		Nathan Hand
  */
 
-/*
- * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
- */
-
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -72,8 +69,9 @@ __obsolete_setup("gc_3=");
 #define GC_MULTI2	5
 #define GC_N64		6
 #define GC_PSX		7
+#define GC_DDR		8
 
-#define GC_MAX		7
+#define GC_MAX		8
 
 #define GC_REFRESH_TIME	HZ/100
 
@@ -91,7 +89,8 @@ static struct gc *gc_base[3];
 static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
 
 static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
-				"Multisystem 2-button joystick", "N64 controller", "PSX controller" };
+				"Multisystem 2-button joystick", "N64 controller", "PSX controller"
+				"PSX DDR controller" };
 /*
  * N64 support.
  */
@@ -237,7 +236,7 @@ static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
 #define GC_PSX_RUMBLE	7		/* Rumble in Red mode */
 
 #define GC_PSX_CLOCK	0x04		/* Pin 4 */
-#define GC_PSX_COMMAND	0x01		/* Pin 1 */
+#define GC_PSX_COMMAND	0x01		/* Pin 2 */
 #define GC_PSX_POWER	0xf8		/* Pins 5-9 */
 #define GC_PSX_SELECT	0x02		/* Pin 3 */
 
@@ -253,25 +252,29 @@ __obsolete_setup("gc_psx_delay=");
 static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
 static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
 				BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR };
+static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
 
 /*
  * gc_psx_command() writes 8bit command and reads 8bit data from
  * the psx pad.
  */
 
-static int gc_psx_command(struct gc *gc, int b)
+static void gc_psx_command(struct gc *gc, int b, unsigned char data[GC_PSX_LENGTH])
 {
-	int i, cmd, data = 0;
+	int i, j, cmd, read;
+	for (i = 0; i < 5; i++)
+		data[i] = 0;
 
 	for (i = 0; i < 8; i++, b >>= 1) {
 		cmd = (b & 1) ? GC_PSX_COMMAND : 0;
 		parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
 		udelay(gc_psx_delay);
-		data |= ((parport_read_status(gc->pd->port) ^ 0x80) & gc->pads[GC_PSX]) ? (1 << i) : 0;
+		read = parport_read_status(gc->pd->port) ^ 0x80;
+		for (j = 0; j < 5; j++)
+			data[j] |= (read & gc_status_bit[j] & gc->pads[GC_PSX]) ? (1 << i) : 0;
 		parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
 		udelay(gc_psx_delay);
 	}
-	return data;
 }
 
 /*
@@ -279,30 +282,39 @@ static int gc_psx_command(struct gc *gc, int b)
  * device identifier code.
  */
 
-static int gc_psx_read_packet(struct gc *gc, unsigned char *data)
+static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_LENGTH], unsigned char id[5])
 {
-	int i, id;
+	int i, j, max_len = 0;
 	unsigned long flags;
+	unsigned char data2[5];
 
 	parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);	/* Select pad */
-	udelay(gc_psx_delay * 2);
+	udelay(gc_psx_delay);
 	parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER);			/* Deselect, begin command */
-	udelay(gc_psx_delay * 2);
+	udelay(gc_psx_delay);
 
 	local_irq_save(flags);
 
-	gc_psx_command(gc, 0x01);							/* Access pad */
-	id = gc_psx_command(gc, 0x42);							/* Get device id */
-	if (gc_psx_command(gc, 0) == 0x5a) {						/* Okay? */
-		for (i = 0; i < GC_PSX_LEN(id) * 2; i++)
-			data[i] = gc_psx_command(gc, 0);
-	} else id = 0;
+	gc_psx_command(gc, 0x01, data2);						/* Access pad */
+	gc_psx_command(gc, 0x42, id);							/* Get device ids */
+	gc_psx_command(gc, 0, data2);							/* Dump status */
+
+	for (i =0; i < 5; i++)								/* Find the longest pad */
+		if((gc_status_bit[i] & gc->pads[GC_PSX]) && (GC_PSX_LEN(id[i]) > max_len))
+			max_len = GC_PSX_LEN(id[i]);
+
+	for (i = 0; i < max_len * 2; i++) {						/* Read in all the data */
+		gc_psx_command(gc, 0, data2);
+		for (j = 0; j < 5; j++)
+			data[j][i] = data2[j];
+	}
 
 	local_irq_restore(flags);
 
 	parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
 
-	return GC_PSX_ID(id);
+	for(i = 0; i < 5; i++)								/* Set id's to the real value */
+		id[i] = GC_PSX_ID(id[i]);
 }
 
 /*
@@ -316,6 +328,7 @@ static void gc_timer(unsigned long private)
 	struct gc *gc = (void *) private;
 	struct input_dev *dev = gc->dev;
 	unsigned char data[GC_MAX_LENGTH];
+	unsigned char data_psx[5][GC_PSX_LENGTH];
 	int i, j, s;
 
 /*
@@ -412,53 +425,72 @@ static void gc_timer(unsigned long private)
  * PSX controllers
  */
 
-	if (gc->pads[GC_PSX]) {
+	if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) {
 
-		for (i = 0; i < 5; i++)
-	       		if (gc->pads[GC_PSX] & gc_status_bit[i])
-				break;
+		gc_psx_read_packet(gc, data_psx, data);
 
- 		switch (gc_psx_read_packet(gc, data)) {
+		for (i = 0; i < 5; i++) {
+	 		switch (data[i]) {
 
-			case GC_PSX_RUMBLE:
+				case GC_PSX_RUMBLE:
 
-				input_report_key(dev + i, BTN_THUMBL, ~data[0] & 0x04);
-				input_report_key(dev + i, BTN_THUMBR, ~data[0] & 0x02);
-				input_sync(dev + i);
+					input_report_key(dev + i, BTN_THUMBL, ~data_psx[i][0] & 0x04);
+					input_report_key(dev + i, BTN_THUMBR, ~data_psx[i][0] & 0x02);
 
-			case GC_PSX_NEGCON:
-			case GC_PSX_ANALOG:
+				case GC_PSX_NEGCON:
+				case GC_PSX_ANALOG:
 
-				for (j = 0; j < 4; j++)
-					input_report_abs(dev + i, gc_psx_abs[j], data[j + 2]);
+					if(gc->pads[GC_DDR] & gc_status_bit[i]) {
+						for(j = 0; j < 4; j++)
+							input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
+					} else {
+						for (j = 0; j < 4; j++)
+							input_report_abs(dev + i, gc_psx_abs[j+2], data_psx[i][j + 2]);
 
-				input_report_abs(dev + i, ABS_HAT0X, !(data[0] & 0x20) - !(data[0] & 0x80));
-				input_report_abs(dev + i, ABS_HAT0Y, !(data[0] & 0x40) - !(data[0] & 0x10));
+						input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
+						input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
+					}
 
-				for (j = 0; j < 8; j++)
-					input_report_key(dev + i, gc_psx_btn[j], ~data[1] & (1 << j));
+					for (j = 0; j < 8; j++)
+						input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
 
-				input_report_key(dev + i, BTN_START,  ~data[0] & 0x08);
-				input_report_key(dev + i, BTN_SELECT, ~data[0] & 0x01);
+					input_report_key(dev + i, BTN_START,  ~data_psx[i][0] & 0x08);
+					input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
 
-				input_sync(dev + i);
+					input_sync(dev + i);
 
-				break;
+					break;
 
-			case GC_PSX_NORMAL:
+				case GC_PSX_NORMAL:
+					if(gc->pads[GC_DDR] & gc_status_bit[i]) {
+						for(j = 0; j < 4; j++)
+							input_report_key(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
+					} else {
+						input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
+						input_report_abs(dev + i, ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
 
-				input_report_abs(dev + i, ABS_X, 128 + !(data[0] & 0x20) * 127 - !(data[0] & 0x80) * 128);
-				input_report_abs(dev + i, ABS_Y, 128 + !(data[0] & 0x40) * 127 - !(data[0] & 0x10) * 128);
+						/* for some reason if the extra axes are left unset they drift */
+						/* for (j = 0; j < 4; j++)
+							input_report_abs(dev + i, gc_psx_abs[j+2], 128);
+						 * This needs to be debugged properly,
+						 * maybe fuzz processing needs to be done in input_sync()
+						 *				 --vojtech
+						 */
+					}
 
-				for (j = 0; j < 8; j++)
-					input_report_key(dev + i, gc_psx_btn[j], ~data[1] & (1 << j));
+					for (j = 0; j < 8; j++)
+						input_report_key(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
 
-				input_report_key(dev + i, BTN_START,  ~data[0] & 0x08);
-				input_report_key(dev + i, BTN_SELECT, ~data[0] & 0x01);
+					input_report_key(dev + i, BTN_START,  ~data_psx[i][0] & 0x08);
+					input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
 
-				input_sync(dev + i);
+					input_sync(dev + i);
 
-				break;
+					break;
+
+				case 0: /* not a pad, ignore */
+					break;
+			}
 		}
 	}
 
@@ -490,8 +522,7 @@ static struct gc __init *gc_probe(int *config, int nargs)
 {
 	struct gc *gc;
 	struct parport *pp;
-	int i, j, psx;
-	unsigned char data[32];
+	int i, j;
 
 	if (config[0] < 0)
 		return NULL;
@@ -588,43 +619,22 @@ static struct gc __init *gc_probe(int *config, int nargs)
 				break;
 
 			case GC_PSX:
-
-				psx = gc_psx_read_packet(gc, data);
-
-				switch(psx) {
-					case GC_PSX_NEGCON:
-					case GC_PSX_NORMAL:
-					case GC_PSX_ANALOG:
-					case GC_PSX_RUMBLE:
-
-						for (j = 0; j < 6; j++) {
-							psx = gc_psx_abs[j];
-							set_bit(psx, gc->dev[i].absbit);
-							if (j < 4) {
-								gc->dev[i].absmin[psx] = 4;
-								gc->dev[i].absmax[psx] = 252;
-								gc->dev[i].absflat[psx] = 2;
-							} else {
-								gc->dev[i].absmin[psx] = -1;
-								gc->dev[i].absmax[psx] = 1;
-							}
-						}
-
-						for (j = 0; j < 12; j++)
-							set_bit(gc_psx_btn[j], gc->dev[i].keybit);
-
-						break;
-
-					case 0:
-						gc->pads[GC_PSX] &= ~gc_status_bit[i];
-						printk(KERN_ERR "gamecon.c: No PSX controller found.\n");
-						break;
-
-					default:
-						gc->pads[GC_PSX] &= ~gc_status_bit[i];
-						printk(KERN_WARNING "gamecon.c: Unsupported PSX controller %#x,"
-							" please report to <vojtech@ucw.cz>.\n", psx);
+			case GC_DDR:
+				if(config[i + 1] == GC_DDR) {
+					for (j = 0; j < 4; j++)
+						set_bit(gc_psx_ddr_btn[j], gc->dev[i].keybit);
+				} else {
+					for (j = 0; j < 6; j++) {
+						set_bit(gc_psx_abs[j], gc->dev[i].absbit);
+						gc->dev[i].absmin[gc_psx_abs[j]] = 4;
+						gc->dev[i].absmax[gc_psx_abs[j]] = 252;
+						gc->dev[i].absflat[gc_psx_abs[j]] = 2;
+					}
 				}
+
+				for (j = 0; j < 12; j++)
+					set_bit(gc_psx_btn[j], gc->dev[i].keybit);
+
 				break;
 		}
 

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

@@ -524,7 +524,7 @@ static int __init iforce_init(void)
 	usb_register(&iforce_usb_driver);
 #endif
 #ifdef CONFIG_JOYSTICK_IFORCE_232
-	serio_register_device(&iforce_serio_dev);
+	serio_register_driver(&iforce_serio_drv);
 #endif
 	return 0;
 }
@@ -535,7 +535,7 @@ static void __exit iforce_exit(void)
 	usb_deregister(&iforce_usb_driver);
 #endif
 #ifdef CONFIG_JOYSTICK_IFORCE_232
-	serio_unregister_device(&iforce_serio_dev);
+	serio_unregister_driver(&iforce_serio_drv);
 #endif
 }
 

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

@@ -124,7 +124,7 @@ static irqreturn_t iforce_serio_irq(struct serio *serio,
 	return IRQ_HANDLED;
 }
 
-static void iforce_serio_connect(struct serio *serio, struct serio_dev *dev)
+static void iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct iforce *iforce;
 	if (serio->type != (SERIO_RS232 | SERIO_IFORCE))
@@ -137,7 +137,7 @@ static void iforce_serio_connect(struct serio *serio, struct serio_dev *dev)
 	iforce->serio = serio;
 	serio->private = iforce;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(iforce);
 		return;
 	}
@@ -158,9 +158,13 @@ static void iforce_serio_disconnect(struct serio *serio)
 	kfree(iforce);
 }
 
-struct serio_dev iforce_serio_dev = {
-	.write_wakeup =	iforce_serio_write_wakeup,
-	.interrupt =	iforce_serio_irq,
-	.connect =	iforce_serio_connect,
-	.disconnect =	iforce_serio_disconnect,
+struct serio_driver iforce_serio_drv = {
+	.driver		= {
+		.name	= "iforce",
+	},
+	.description	= "RS232 I-Force joysticks and wheels driver",
+	.write_wakeup	= iforce_serio_write_wakeup,
+	.interrupt	= iforce_serio_irq,
+	.connect	= iforce_serio_connect,
+	.disconnect	= iforce_serio_disconnect,
 };

drivers/input/joystick/iforce/iforce.h

@@ -187,5 +187,5 @@ int iforce_upload_constant(struct iforce*, struct ff_effect*, int is_update);
 int iforce_upload_condition(struct iforce*, struct ff_effect*, int is_update);
 
 /* Public variables */
-extern struct serio_dev iforce_serio_dev;
+extern struct serio_driver iforce_serio_drv;
 extern struct usb_driver iforce_usb_driver;

drivers/input/joystick/magellan.c

@@ -35,8 +35,10 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+#define DRIVER_DESC	"Magellan and SpaceMouse 6dof controller driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Magellan and SpaceMouse 6dof controller driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -146,7 +148,7 @@ static void magellan_disconnect(struct serio *serio)
  * it as an input device.
  */
 
-static void magellan_connect(struct serio *serio, struct serio_dev *dev)
+static void magellan_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct magellan *magellan;
 	int i, t;
@@ -184,7 +186,7 @@ static void magellan_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = magellan;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(magellan);
 		return;
 	}
@@ -199,10 +201,14 @@ static void magellan_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev magellan_dev = {
-	.interrupt =	magellan_interrupt,
-	.connect =	magellan_connect,
-	.disconnect =	magellan_disconnect,
+static struct serio_driver magellan_drv = {
+	.driver		= {
+		.name	= "magellan",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= magellan_interrupt,
+	.connect	= magellan_connect,
+	.disconnect	= magellan_disconnect,
 };
 
 /*
@@ -211,13 +217,13 @@ static struct serio_dev magellan_dev = {
 
 int __init magellan_init(void)
 {
-	serio_register_device(&magellan_dev);
+	serio_register_driver(&magellan_drv);
 	return 0;
 }
 
 void __exit magellan_exit(void)
 {
-	serio_unregister_device(&magellan_dev);
+	serio_unregister_driver(&magellan_drv);
 }
 
 module_init(magellan_init);

drivers/input/joystick/spaceball.c

@@ -39,8 +39,10 @@
 #include <linux/input.h>
 #include <linux/serio.h>
 
+#define DRIVER_DESC	"SpaceTec SpaceBall 2003/3003/4000 FLX driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("SpaceTec SpaceBall 2003/3003/4000 FLX driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -201,7 +203,7 @@ static void spaceball_disconnect(struct serio *serio)
  * it as an input device.
  */
 
-static void spaceball_connect(struct serio *serio, struct serio_dev *dev)
+static void spaceball_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct spaceball *spaceball;
 	int i, t, id;
@@ -254,7 +256,7 @@ static void spaceball_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = spaceball;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(spaceball);
 		return;
 	}
@@ -269,10 +271,14 @@ static void spaceball_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev spaceball_dev = {
-	.interrupt =	spaceball_interrupt,
-	.connect =	spaceball_connect,
-	.disconnect =	spaceball_disconnect,
+static struct serio_driver spaceball_drv = {
+	.driver		= {
+		.name	= "spaceball",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= spaceball_interrupt,
+	.connect	= spaceball_connect,
+	.disconnect	= spaceball_disconnect,
 };
 
 /*
@@ -281,13 +287,13 @@ static struct serio_dev spaceball_dev = {
 
 int __init spaceball_init(void)
 {
-	serio_register_device(&spaceball_dev);
+	serio_register_driver(&spaceball_drv);
 	return 0;
 }
 
 void __exit spaceball_exit(void)
 {
-	serio_unregister_device(&spaceball_dev);
+	serio_unregister_driver(&spaceball_drv);
 }
 
 module_init(spaceball_init);

drivers/input/joystick/spaceorb.c

@@ -38,8 +38,10 @@
 #include <linux/input.h>
 #include <linux/serio.h>
 
+#define DRIVER_DESC	"SpaceTec SpaceOrb 360 and Avenger 6dof controller driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("SpaceTec SpaceOrb 360 and Avenger 6dof controller driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -162,7 +164,7 @@ static void spaceorb_disconnect(struct serio *serio)
  * it as an input device.
  */
 
-static void spaceorb_connect(struct serio *serio, struct serio_dev *dev)
+static void spaceorb_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct spaceorb *spaceorb;
 	int i, t;
@@ -201,7 +203,7 @@ static void spaceorb_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = spaceorb;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(spaceorb);
 		return;
 	}
@@ -213,10 +215,14 @@ static void spaceorb_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev spaceorb_dev = {
-	.interrupt =	spaceorb_interrupt,
-	.connect =	spaceorb_connect,
-	.disconnect =	spaceorb_disconnect,
+static struct serio_driver spaceorb_drv = {
+	.driver		= {
+		.name	= "spaceorb",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= spaceorb_interrupt,
+	.connect	= spaceorb_connect,
+	.disconnect	= spaceorb_disconnect,
 };
 
 /*
@@ -225,13 +231,13 @@ static struct serio_dev spaceorb_dev = {
 
 int __init spaceorb_init(void)
 {
-	serio_register_device(&spaceorb_dev);
+	serio_register_driver(&spaceorb_drv);
 	return 0;
 }
 
 void __exit spaceorb_exit(void)
 {
-	serio_unregister_device(&spaceorb_dev);
+	serio_unregister_driver(&spaceorb_drv);
 }
 
 module_init(spaceorb_init);

drivers/input/joystick/stinger.c

@@ -36,8 +36,10 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+#define DRIVER_DESC	"Gravis Stinger gamepad driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Gravis Stinger gamepad driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -134,7 +136,7 @@ static void stinger_disconnect(struct serio *serio)
  * it as an input device.
  */
 
-static void stinger_connect(struct serio *serio, struct serio_dev *dev)
+static void stinger_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct stinger *stinger;
 	int i;
@@ -172,7 +174,7 @@ static void stinger_connect(struct serio *serio, struct serio_dev *dev)
 	stinger->dev.private = stinger;
 	serio->private = stinger;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(stinger);
 		return;
 	}
@@ -187,10 +189,14 @@ static void stinger_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev stinger_dev = {
-	.interrupt =	stinger_interrupt,
-	.connect =	stinger_connect,
-	.disconnect =	stinger_disconnect,
+static struct serio_driver stinger_drv = {
+	.driver		= {
+		.name	= "stinger",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= stinger_interrupt,
+	.connect	= stinger_connect,
+	.disconnect	= stinger_disconnect,
 };
 
 /*
@@ -199,13 +205,13 @@ static struct serio_dev stinger_dev = {
 
 int __init stinger_init(void)
 {
-	serio_register_device(&stinger_dev);
+	serio_register_driver(&stinger_drv);
 	return 0;
 }
 
 void __exit stinger_exit(void)
 {
-	serio_unregister_device(&stinger_dev);
+	serio_unregister_driver(&stinger_drv);
 }
 
 module_init(stinger_init);

drivers/input/joystick/tmdc.c

@@ -322,7 +322,7 @@ static void tmdc_connect(struct gameport *gameport, struct gameport_dev *dev)
 			tmdc->dev[j].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
 
 			for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) {
-				if (tmdc->abs[i] < 0) continue;
+				if (tmdc->abs[j][i] < 0) continue;
 				set_bit(tmdc->abs[j][i], tmdc->dev[j].absbit);
 				tmdc->dev[j].absmin[tmdc->abs[j][i]] = 8;
 				tmdc->dev[j].absmax[tmdc->abs[j][i]] = 248;

drivers/input/joystick/twidjoy.c

@@ -187,7 +187,7 @@ static void twidjoy_disconnect(struct serio *serio)
  * it as an input device.
  */
 
-static void twidjoy_connect(struct serio *serio, struct serio_dev *dev)
+static void twidjoy_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct twidjoy_button_spec *bp;
 	struct twidjoy *twidjoy;
@@ -232,7 +232,7 @@ static void twidjoy_connect(struct serio *serio, struct serio_dev *dev)
 	twidjoy->dev.private = twidjoy;
 	serio->private = twidjoy;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(twidjoy);
 		return;
 	}
@@ -246,10 +246,14 @@ static void twidjoy_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev twidjoy_dev = {
-	.interrupt =	twidjoy_interrupt,
-	.connect =	twidjoy_connect,
-	.disconnect =	twidjoy_disconnect,
+static struct serio_driver twidjoy_drv = {
+	.driver		= {
+		.name	= "twidjoy",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= twidjoy_interrupt,
+	.connect	= twidjoy_connect,
+	.disconnect	= twidjoy_disconnect,
 };
 
 /*
@@ -258,13 +262,13 @@ static struct serio_dev twidjoy_dev = {
 
 int __init twidjoy_init(void)
 {
-	serio_register_device(&twidjoy_dev);
+	serio_register_driver(&twidjoy_drv);
 	return 0;
 }
 
 void __exit twidjoy_exit(void)
 {
-	serio_unregister_device(&twidjoy_dev);
+	serio_unregister_driver(&twidjoy_drv);
 }
 
 module_init(twidjoy_init);

drivers/input/joystick/warrior.c

@@ -35,8 +35,10 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+#define DRIVER_DESC	"Logitech WingMan Warrior joystick driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Logitech WingMan Warrior joystick driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -139,7 +141,7 @@ static void warrior_disconnect(struct serio *serio)
  * it as an input device.
  */
 
-static void warrior_connect(struct serio *serio, struct serio_dev *dev)
+static void warrior_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct warrior *warrior;
 	int i;
@@ -185,7 +187,7 @@ static void warrior_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = warrior;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(warrior);
 		return;
 	}
@@ -199,10 +201,14 @@ static void warrior_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev warrior_dev = {
-	.interrupt =	warrior_interrupt,
-	.connect =	warrior_connect,
-	.disconnect =	warrior_disconnect,
+static struct serio_driver warrior_drv = {
+	.driver		= {
+		.name	= "warrior",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= warrior_interrupt,
+	.connect	= warrior_connect,
+	.disconnect	= warrior_disconnect,
 };
 
 /*
@@ -211,13 +217,13 @@ static struct serio_dev warrior_dev = {
 
 int __init warrior_init(void)
 {
-	serio_register_device(&warrior_dev);
+	serio_register_driver(&warrior_drv);
 	return 0;
 }
 
 void __exit warrior_exit(void)
 {
-	serio_unregister_device(&warrior_dev);
+	serio_unregister_driver(&warrior_drv);
 }
 
 module_init(warrior_init);

drivers/input/keyboard/atkbd.c

@@ -27,8 +27,10 @@
 #include <linux/serio.h>
 #include <linux/workqueue.h>
 
+#define DRIVER_DESC	"AT and PS/2 keyboard driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
-MODULE_DESCRIPTION("AT and PS/2 keyboard driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 static int atkbd_set = 2;
@@ -47,6 +49,10 @@ static int atkbd_softrepeat;
 module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
 
+static int atkbd_softraw = 1;
+module_param_named(softraw, atkbd_softraw, bool, 0);
+MODULE_PARM_DESC(softraw, "Use software generated rawmode");
+
 static int atkbd_scroll;
 module_param_named(scroll, atkbd_scroll, bool, 0);
 MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
@@ -164,36 +170,64 @@ static unsigned char atkbd_scroll_keys[5][2] = {
 	{ ATKBD_SCR_CLICK, 0x60 },
 };
 
+#define ATKBD_FLAG_ACK		0	/* Waiting for ACK/NAK */
+#define ATKBD_FLAG_CMD		1	/* Waiting for command to finish */
+#define ATKBD_FLAG_CMD1		2	/* First byte of command response */
+#define ATKBD_FLAG_ENABLED	3	/* Waining for init to finish */
+
 /*
  * The atkbd control structure
  */
 
 struct atkbd {
-	unsigned char keycode[512];
-	struct input_dev dev;
-	struct serio *serio;
 
+	/* Written only during init */
 	char name[64];
 	char phys[32];
-	unsigned short id;
+	struct serio *serio;
+	struct input_dev dev;
+
 	unsigned char set;
-	unsigned int translated:1;
-	unsigned int extra:1;
-	unsigned int write:1;
+	unsigned short id;
+	unsigned char keycode[512];
+	unsigned char translated;
+	unsigned char extra;
+	unsigned char write;
+
+	/* Protected by FLAG_ACK */
+	unsigned char nak;
 
+	/* Protected by FLAG_CMD */
 	unsigned char cmdbuf[4];
 	unsigned char cmdcnt;
-	volatile signed char ack;
-	unsigned char emul;
-	unsigned int resend:1;
-	unsigned int release:1;
-	unsigned int bat_xl:1;
-	unsigned int enabled:1;
 
+	/* Accessed only from interrupt */
+	unsigned char emul;
+	unsigned char resend;
+	unsigned char release;
+	unsigned char bat_xl;
 	unsigned int last;
 	unsigned long time;
+
+	/* Ensures that only one command is executing at a time */
+	struct semaphore cmd_sem;
+
+	/* Used to signal completion from interrupt handler */
+	wait_queue_head_t wait;
+
+	/* Flags */
+	unsigned long flags;
+};
+
+/* Work structure to schedule execution of a command */
+struct atkbd_work {
+	struct work_struct work;
+	struct atkbd *atkbd;
+	int command;
+	unsigned char param[0];
 };
 
+
 static void atkbd_report_key(struct input_dev *dev, struct pt_regs *regs, int code, int value)
 {
 	input_regs(dev, regs);
@@ -224,7 +258,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 
 #if !defined(__i386__) && !defined (__x86_64__)
 	if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
-		printk("atkbd.c: frame/parity error: %02x\n", flags);
+		printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
 		serio_write(serio, ATKBD_CMD_RESEND);
 		atkbd->resend = 1;
 		goto out;
@@ -234,24 +268,46 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 		atkbd->resend = 0;
 #endif
 
-	if (!atkbd->ack)
+	if (test_bit(ATKBD_FLAG_ACK, &atkbd->flags)) {
 		switch (code) {
 			case ATKBD_RET_ACK:
-				atkbd->ack = 1;
-				goto out;
+				atkbd->nak = 0;
+				if (atkbd->cmdcnt) {
+					set_bit(ATKBD_FLAG_CMD, &atkbd->flags);
+					set_bit(ATKBD_FLAG_CMD1, &atkbd->flags);
+				}
+				clear_bit(ATKBD_FLAG_ACK, &atkbd->flags);
+				wake_up_interruptible(&atkbd->wait);
+				break;
 			case ATKBD_RET_NAK:
-				atkbd->ack = -1;
-				goto out;
+				atkbd->nak = 1;
+				clear_bit(ATKBD_FLAG_ACK, &atkbd->flags);
+				wake_up_interruptible(&atkbd->wait);
+				break;
 		}
+		goto out;
+	}
+
+	if (test_bit(ATKBD_FLAG_CMD, &atkbd->flags)) {
+
+		if (atkbd->cmdcnt)
+			atkbd->cmdbuf[--atkbd->cmdcnt] = code;
 
-	if (atkbd->cmdcnt) {
-		atkbd->cmdbuf[--atkbd->cmdcnt] = code;
+		if (test_and_clear_bit(ATKBD_FLAG_CMD1, &atkbd->flags) && atkbd->cmdcnt)
+			wake_up_interruptible(&atkbd->wait);
+
+		if (!atkbd->cmdcnt) {
+			clear_bit(ATKBD_FLAG_CMD, &atkbd->flags);
+			wake_up_interruptible(&atkbd->wait);
+		}
 		goto out;
 	}
 
-	if (!atkbd->enabled)
+	if (!test_bit(ATKBD_FLAG_ENABLED, &atkbd->flags))
 		goto out;
 
+	input_event(&atkbd->dev, EV_MSC, MSC_RAW, code);
+
 	if (atkbd->translated) {
 
 		if (atkbd->emul ||
@@ -270,6 +326,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 
 	switch (code) {
 		case ATKBD_RET_BAT:
+			clear_bit(ATKBD_FLAG_ENABLED, &atkbd->flags);
 			serio_rescan(atkbd->serio);
 			goto out;
 		case ATKBD_RET_EMUL0:
@@ -300,6 +357,9 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 		code |= (atkbd->set != 3) ? 0x80 : 0x100;
 	}
 
+	if (atkbd->keycode[code] != ATKBD_KEY_NULL)
+		input_event(&atkbd->dev, EV_MSC, MSC_SCAN, code);
+
 	switch (atkbd->keycode[code]) {
 		case ATKBD_KEY_NULL:
 			break;
@@ -372,83 +432,147 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
  * acknowledge. It doesn't handle resends according to the keyboard
  * protocol specs, because if these are needed, the keyboard needs
  * replacement anyway, and they only make a mess in the protocol.
+ *
+ * atkbd_sendbyte() can only be called from a process context
  */
 
 static int atkbd_sendbyte(struct atkbd *atkbd, unsigned char byte)
 {
-	int timeout = 20000; /* 200 msec */
-	atkbd->ack = 0;
-
 #ifdef ATKBD_DEBUG
 	printk(KERN_DEBUG "atkbd.c: Sent: %02x\n", byte);
 #endif
-	if (serio_write(atkbd->serio, byte))
-		return -1;
+	atkbd->nak = 1;
+	set_bit(ATKBD_FLAG_ACK, &atkbd->flags);
 
-	while (!atkbd->ack && timeout--) udelay(10);
+	if (serio_write(atkbd->serio, byte) == 0)
+		wait_event_interruptible_timeout(atkbd->wait,
+				!test_bit(ATKBD_FLAG_ACK, &atkbd->flags),
+				msecs_to_jiffies(200));
 
-	return -(atkbd->ack <= 0);
+	clear_bit(ATKBD_FLAG_ACK, &atkbd->flags);
+	return -atkbd->nak;
 }
 
 /*
  * atkbd_command() sends a command, and its parameters to the keyboard,
  * then waits for the response and puts it in the param array.
+ *
+ * atkbd_command() can only be called from a process context
  */
 
 static int atkbd_command(struct atkbd *atkbd, unsigned char *param, int command)
 {
-	int timeout = 500000; /* 500 msec */
+	int timeout;
 	int send = (command >> 12) & 0xf;
 	int receive = (command >> 8) & 0xf;
+	int rc = -1;
 	int i;
 
-	atkbd->cmdcnt = receive;
+	timeout = msecs_to_jiffies(command == ATKBD_CMD_RESET_BAT ? 4000 : 500);
 
-	if (command == ATKBD_CMD_RESET_BAT)
-		timeout = 2000000; /* 2 sec */
+	down(&atkbd->cmd_sem);
+	clear_bit(ATKBD_FLAG_CMD, &atkbd->flags);
 
 	if (receive && param)
 		for (i = 0; i < receive; i++)
 			atkbd->cmdbuf[(receive - 1) - i] = param[i];
 
+	atkbd->cmdcnt = receive;
+
 	if (command & 0xff)
 		if (atkbd_sendbyte(atkbd, command & 0xff))
-			return (atkbd->cmdcnt = 0) - 1;
+			goto out;
 
 	for (i = 0; i < send; i++)
 		if (atkbd_sendbyte(atkbd, param[i]))
-			return (atkbd->cmdcnt = 0) - 1;
-
-	while (atkbd->cmdcnt && timeout--) {
-
-		if (atkbd->cmdcnt == 1 &&
-		    command == ATKBD_CMD_RESET_BAT && timeout > 100000)
-			timeout = 100000;
+			goto out;
 
-		if (atkbd->cmdcnt == 1 && command == ATKBD_CMD_GETID &&
-		    atkbd->cmdbuf[1] != 0xab && atkbd->cmdbuf[1] != 0xac) {
+	timeout = wait_event_interruptible_timeout(atkbd->wait,
+				!test_bit(ATKBD_FLAG_CMD1, &atkbd->flags), timeout);
+
+	if (atkbd->cmdcnt && timeout > 0) {
+		if (command == ATKBD_CMD_RESET_BAT && jiffies_to_msecs(timeout) > 100)
+			timeout = msecs_to_jiffies(100);
+
+		if (command == ATKBD_CMD_GETID &&
+		    atkbd->cmdbuf[receive - 1] != 0xab && atkbd->cmdbuf[receive - 1] != 0xac) {
+			/*
+			 * Device behind the port is not a keyboard
+			 * so we don't need to wait for the 2nd byte
+			 * of ID response.
+			 */
+			clear_bit(ATKBD_FLAG_CMD, &atkbd->flags);
 			atkbd->cmdcnt = 0;
-			break;
 		}
 
-		udelay(1);
+		wait_event_interruptible_timeout(atkbd->wait,
+				!test_bit(ATKBD_FLAG_CMD, &atkbd->flags), timeout);
 	}
 
 	if (param)
 		for (i = 0; i < receive; i++)
 			param[i] = atkbd->cmdbuf[(receive - 1) - i];
 
-	if (command == ATKBD_CMD_RESET_BAT && atkbd->cmdcnt == 1)
-		atkbd->cmdcnt = 0;
+	if (atkbd->cmdcnt && (command != ATKBD_CMD_RESET_BAT || atkbd->cmdcnt != 1))
+		goto out;
+
+	rc = 0;
+
+out:
+	clear_bit(ATKBD_FLAG_CMD, &atkbd->flags);
+	clear_bit(ATKBD_FLAG_CMD1, &atkbd->flags);
+	up(&atkbd->cmd_sem);
+
+	return rc;
+}
+
+/*
+ * atkbd_execute_scheduled_command() sends a command, previously scheduled by
+ * atkbd_schedule_command(), to the keyboard.
+ */
+
+static void atkbd_execute_scheduled_command(void *data)
+{
+	struct atkbd_work *atkbd_work = data;
+
+	atkbd_command(atkbd_work->atkbd, atkbd_work->param, atkbd_work->command);
+
+	kfree(atkbd_work);
+}
+
+/*
+ * atkbd_schedule_command() allows to schedule delayed execution of a keyboard
+ * command and can be used to issue a command from an interrupt or softirq
+ * context.
+ */
+
+static int atkbd_schedule_command(struct atkbd *atkbd, unsigned char *param, int command)
+{
+	struct atkbd_work *atkbd_work;
+	int send = (command >> 12) & 0xf;
+	int receive = (command >> 8) & 0xf;
+
+	if (!test_bit(ATKBD_FLAG_ENABLED, &atkbd->flags))
+		return -1;
+
+	if (!(atkbd_work = kmalloc(sizeof(struct atkbd_work) + max(send, receive), GFP_ATOMIC)))
+		return -1;
+
+	memset(atkbd_work, 0, sizeof(struct atkbd_work));
+	atkbd_work->atkbd = atkbd;
+	atkbd_work->command = command;
+	memcpy(atkbd_work->param, param, send);
+	INIT_WORK(&atkbd_work->work, atkbd_execute_scheduled_command, atkbd_work);
 
-	if (atkbd->cmdcnt) {
-		atkbd->cmdcnt = 0;
+	if (!schedule_work(&atkbd_work->work)) {
+		kfree(atkbd_work);
 		return -1;
 	}
 
 	return 0;
 }
 
+
 /*
  * Event callback from the input module. Events that change the state of
  * the hardware are processed here.
@@ -475,7 +599,7 @@ static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int co
 			param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
 			         | (test_bit(LED_NUML,    dev->led) ? 2 : 0)
 			         | (test_bit(LED_CAPSL,   dev->led) ? 4 : 0);
-		        atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS);
+		        atkbd_schedule_command(atkbd, param, ATKBD_CMD_SETLEDS);
 
 			if (atkbd->extra) {
 				param[0] = 0;
@@ -484,7 +608,7 @@ static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int co
 					 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
 				         | (test_bit(LED_MISC,    dev->led) ? 0x10 : 0)
 				         | (test_bit(LED_MUTE,    dev->led) ? 0x20 : 0);
-				atkbd_command(atkbd, param, ATKBD_CMD_EX_SETLEDS);
+				atkbd_schedule_command(atkbd, param, ATKBD_CMD_EX_SETLEDS);
 			}
 
 			return 0;
@@ -500,7 +624,7 @@ static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int co
 			dev->rep[REP_PERIOD] = period[i];
 			dev->rep[REP_DELAY] = delay[j];
 			param[0] = i | (j << 5);
-			atkbd_command(atkbd, param, ATKBD_CMD_SETREP);
+			atkbd_schedule_command(atkbd, param, ATKBD_CMD_SETREP);
 
 			return 0;
 	}
@@ -672,6 +796,11 @@ static void atkbd_cleanup(struct serio *serio)
 static void atkbd_disconnect(struct serio *serio)
 {
 	struct atkbd *atkbd = serio->private;
+
+	clear_bit(ATKBD_FLAG_ENABLED, &atkbd->flags);
+	synchronize_kernel();
+	flush_scheduled_work();
+
 	input_unregister_device(&atkbd->dev);
 	serio_close(serio);
 	kfree(atkbd);
@@ -684,7 +813,7 @@ static void atkbd_disconnect(struct serio *serio)
  * to the input module.
  */
 
-static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
+static void atkbd_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct atkbd *atkbd;
 	int i;
@@ -693,6 +822,9 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 		return;
 	memset(atkbd, 0, sizeof(struct atkbd));
 
+	init_MUTEX(&atkbd->cmd_sem);
+	init_waitqueue_head(&atkbd->wait);
+
 	switch (serio->type & SERIO_TYPE) {
 
 		case SERIO_8042_XL:
@@ -709,17 +841,22 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 			return;
 	}
 
+	if (!atkbd->write)
+		atkbd_softrepeat = 1;
+	if (atkbd_softrepeat)
+		atkbd_softraw = 1;
+
 	if (atkbd->write) {
-		atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
+		atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP) | BIT(EV_MSC);
 		atkbd->dev.ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
-	} else  atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+	} else  atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC);
+	atkbd->dev.mscbit[0] = atkbd_softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN);
 
 	if (!atkbd_softrepeat) {
 		atkbd->dev.rep[REP_DELAY] = 250;
 		atkbd->dev.rep[REP_PERIOD] = 33;
-	}
+	} else atkbd_softraw = 1;
 
-	atkbd->ack = 1;
 	atkbd->serio = serio;
 
 	init_input_dev(&atkbd->dev);
@@ -732,7 +869,7 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = atkbd;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(atkbd);
 		return;
 	}
@@ -754,8 +891,6 @@ 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");
@@ -797,6 +932,8 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 
 	input_register_device(&atkbd->dev);
 
+	set_bit(ATKBD_FLAG_ENABLED, &atkbd->flags);
+
 	printk(KERN_INFO "input: %s on %s\n", atkbd->name, serio->phys);
 }
 
@@ -808,10 +945,10 @@ static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
 static int atkbd_reconnect(struct serio *serio)
 {
 	struct atkbd *atkbd = serio->private;
-	struct serio_dev *dev = serio->dev;
+	struct serio_driver *drv = serio->drv;
 	unsigned char param[1];
 
-	if (!dev) {
+	if (!drv) {
 		printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
 		return -1;
 	}
@@ -832,26 +969,32 @@ static int atkbd_reconnect(struct serio *serio)
 			return -1;
 	}
 
+	set_bit(ATKBD_FLAG_ENABLED, &atkbd->flags);
+
 	return 0;
 }
 
-static struct serio_dev atkbd_dev = {
-	.interrupt =	atkbd_interrupt,
-	.connect =	atkbd_connect,
-	.reconnect = 	atkbd_reconnect,
-	.disconnect =	atkbd_disconnect,
-	.cleanup =	atkbd_cleanup,
+static struct serio_driver atkbd_drv = {
+	.driver		= {
+		.name	= "atkbd",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= atkbd_interrupt,
+	.connect	= atkbd_connect,
+	.reconnect	= atkbd_reconnect,
+	.disconnect	= atkbd_disconnect,
+	.cleanup	= atkbd_cleanup,
 };
 
 int __init atkbd_init(void)
 {
-	serio_register_device(&atkbd_dev);
+	serio_register_driver(&atkbd_drv);
 	return 0;
 }
 
 void __exit atkbd_exit(void)
 {
-	serio_unregister_device(&atkbd_dev);
+	serio_unregister_driver(&atkbd_drv);
 }
 
 module_init(atkbd_init);

drivers/input/keyboard/lkkbd.c

@@ -76,8 +76,10 @@
 #include <linux/serio.h>
 #include <linux/workqueue.h>
 
+#define DRIVER_DESC	"LK keyboard driver"
+
 MODULE_AUTHOR ("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
-MODULE_DESCRIPTION ("LK keyboard driver");
+MODULE_DESCRIPTION (DRIVER_DESC);
 MODULE_LICENSE ("GPL");
 
 /*
@@ -622,7 +624,7 @@ lkkbd_reinit (void *data)
  * lkkbd_connect() probes for a LK keyboard and fills the necessary structures.
  */
 static void
-lkkbd_connect (struct serio *serio, struct serio_dev *dev)
+lkkbd_connect (struct serio *serio, struct serio_driver *drv)
 {
 	struct lkkbd *lk;
 	int i;
@@ -665,7 +667,7 @@ lkkbd_connect (struct serio *serio, struct serio_dev *dev)
 
 	serio->private = lk;
 
-	if (serio_open (serio, dev)) {
+	if (serio_open (serio, drv)) {
 		kfree (lk);
 		return;
 	}
@@ -703,10 +705,14 @@ lkkbd_disconnect (struct serio *serio)
 	kfree (lk);
 }
 
-static struct serio_dev lkkbd_dev = {
-	.connect = lkkbd_connect,
-	.disconnect = lkkbd_disconnect,
-	.interrupt = lkkbd_interrupt,
+static struct serio_driver lkkbd_drv = {
+	.driver		= {
+		.name	= "lkkbd",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= lkkbd_connect,
+	.disconnect	= lkkbd_disconnect,
+	.interrupt	= lkkbd_interrupt,
 };
 
 /*
@@ -715,14 +721,14 @@ static struct serio_dev lkkbd_dev = {
 int __init
 lkkbd_init (void)
 {
-	serio_register_device (&lkkbd_dev);
+	serio_register_driver(&lkkbd_drv);
 	return 0;
 }
 
 void __exit
 lkkbd_exit (void)
 {
-	serio_unregister_device (&lkkbd_dev);
+	serio_unregister_driver(&lkkbd_drv);
 }
 
 module_init (lkkbd_init);

drivers/input/keyboard/newtonkbd.c

@@ -32,8 +32,10 @@
 #include <linux/init.h>
 #include <linux/serio.h>
 
+#define DRIVER_DESC	"Newton keyboard driver"
+
 MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>");
-MODULE_DESCRIPTION("Newton keyboard driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 #define NKBD_KEY	0x7f
@@ -82,7 +84,7 @@ irqreturn_t nkbd_interrupt(struct serio *serio,
 
 }
 
-void nkbd_connect(struct serio *serio, struct serio_dev *dev)
+void nkbd_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct nkbd *nkbd;
 	int i;
@@ -106,7 +108,7 @@ void nkbd_connect(struct serio *serio, struct serio_dev *dev)
 	nkbd->dev.private = nkbd;
 	serio->private = nkbd;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(nkbd);
 		return;
 	}
@@ -138,21 +140,25 @@ void nkbd_disconnect(struct serio *serio)
 	kfree(nkbd);
 }
 
-struct serio_dev nkbd_dev = {
-	.interrupt =	nkbd_interrupt,
-	.connect =	nkbd_connect,
-	.disconnect =	nkbd_disconnect
+struct serio_driver nkbd_drv = {
+	.driver		= {
+		.name	= "newtonkbd",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= nkbd_interrupt,
+	.connect	= nkbd_connect,
+	.disconnect	= nkbd_disconnect,
 };
 
 int __init nkbd_init(void)
 {
-	serio_register_device(&nkbd_dev);
+	serio_register_driver(&nkbd_drv);
 	return 0;
 }
 
 void __exit nkbd_exit(void)
 {
-	serio_unregister_device(&nkbd_dev);
+	serio_unregister_driver(&nkbd_drv);
 }
 
 module_init(nkbd_init);

drivers/input/keyboard/sunkbd.c

@@ -37,8 +37,10 @@
 #include <linux/serio.h>
 #include <linux/workqueue.h>
 
+#define DRIVER_DESC	"Sun keyboard driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Sun keyboard driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 static unsigned char sunkbd_keycode[128] = {
@@ -221,7 +223,7 @@ static void sunkbd_reinit(void *data)
  * sunkbd_connect() probes for a Sun keyboard and fills the necessary structures.
  */
 
-static void sunkbd_connect(struct serio *serio, struct serio_dev *dev)
+static void sunkbd_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct sunkbd *sunkbd;
 	int i;
@@ -257,7 +259,7 @@ static void sunkbd_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = sunkbd;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(sunkbd);
 		return;
 	}
@@ -301,10 +303,14 @@ static void sunkbd_disconnect(struct serio *serio)
 	kfree(sunkbd);
 }
 
-static struct serio_dev sunkbd_dev = {
-	.interrupt =	sunkbd_interrupt,
-	.connect =	sunkbd_connect,
-	.disconnect =	sunkbd_disconnect
+static struct serio_driver sunkbd_drv = {
+	.driver		= {
+		.name	= "sunkbd",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= sunkbd_interrupt,
+	.connect	= sunkbd_connect,
+	.disconnect	= sunkbd_disconnect,
 };
 
 /*
@@ -313,13 +319,13 @@ static struct serio_dev sunkbd_dev = {
 
 int __init sunkbd_init(void)
 {
-	serio_register_device(&sunkbd_dev);
+	serio_register_driver(&sunkbd_drv);
 	return 0;
 }
 
 void __exit sunkbd_exit(void)
 {
-	serio_unregister_device(&sunkbd_dev);
+	serio_unregister_driver(&sunkbd_drv);
 }
 
 module_init(sunkbd_init);

drivers/input/keyboard/xtkbd.c

@@ -34,8 +34,10 @@
 #include <linux/init.h>
 #include <linux/serio.h>
 
+#define DRIVER_DESC	"XT keyboard driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("XT keyboard driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 #define XTKBD_EMUL0	0xe0
@@ -86,7 +88,7 @@ irqreturn_t xtkbd_interrupt(struct serio *serio,
 	return IRQ_HANDLED;
 }
 
-void xtkbd_connect(struct serio *serio, struct serio_dev *dev)
+void xtkbd_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct xtkbd *xtkbd;
 	int i;
@@ -111,7 +113,7 @@ void xtkbd_connect(struct serio *serio, struct serio_dev *dev)
 
 	serio->private = xtkbd;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(xtkbd);
 		return;
 	}
@@ -143,21 +145,25 @@ void xtkbd_disconnect(struct serio *serio)
 	kfree(xtkbd);
 }
 
-struct serio_dev xtkbd_dev = {
-	.interrupt =	xtkbd_interrupt,
-	.connect =	xtkbd_connect,
-	.disconnect =	xtkbd_disconnect
+struct serio_driver xtkbd_drv = {
+	.driver		= {
+		.name	= "xtkbd",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= xtkbd_interrupt,
+	.connect	= xtkbd_connect,
+	.disconnect	= xtkbd_disconnect,
 };
 
 int __init xtkbd_init(void)
 {
-	serio_register_device(&xtkbd_dev);
+	serio_register_driver(&xtkbd_drv);
 	return 0;
 }
 
 void __exit xtkbd_exit(void)
 {
-	serio_unregister_device(&xtkbd_dev);
+	serio_unregister_driver(&xtkbd_drv);
 }
 
 module_init(xtkbd_init);

drivers/input/misc/Kconfig

@@ -14,7 +14,7 @@ config INPUT_MISC
 
 config INPUT_PCSPKR
 	tristate "PC Speaker support"
-	depends on (ALPHA || X86 || X86_64 || MIPS) && INPUT && INPUT_MISC
+	depends on (ALPHA || X86 || X86_64 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES) && INPUT && INPUT_MISC
 	help
 	  Say Y here if you want the standard PC Speaker to be used for
 	  bells and whistles.

drivers/input/misc/uinput.c

@@ -279,6 +279,9 @@ static unsigned int uinput_poll(struct file *file, poll_table *wait)
 {
 	struct uinput_device *udev = file->private_data;
 
+	if (!test_bit(UIST_CREATED, &(udev->state)))
+		return 0;
+
 	poll_wait(file, &udev->waitq, wait);
 
 	if (udev->head != udev->tail)

drivers/input/mouse/Kconfig

@@ -30,8 +30,6 @@ config MOUSE_PS2
 	  and a new verion of GPM at:
 		http://www.geocities.com/dt_or/gpm/gpm.html
 	  to take advantage of the advanced features of the touchpad.
-	  If you do not want install specialized drivers but want tapping
-	  working please use option psmouse.proto=imps.
 
 	  If unsure, say Y.
 

drivers/input/mouse/logips2pp.c

@@ -277,7 +277,7 @@ int ps2pp_init(struct psmouse *psmouse, int set_properties)
 				protocol = PSMOUSE_PS2TPP;
 			}
 
-		} else if (get_model_info(model) != NULL) {
+		} else if (model_info != NULL) {
 
 			param[0] = param[1] = param[2] = 0;
 			ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */

drivers/input/mouse/psmouse-base.c

@@ -22,8 +22,10 @@
 #include "synaptics.h"
 #include "logips2pp.h"
 
+#define DRIVER_DESC	"PS/2 mouse driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
-MODULE_DESCRIPTION("PS/2 mouse driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 static char *psmouse_proto;
@@ -142,37 +144,67 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 			printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n",
 				flags & SERIO_TIMEOUT ? " timeout" : "",
 				flags & SERIO_PARITY ? " bad parity" : "");
-		if (psmouse->acking) {
-			psmouse->ack = -1;
-			psmouse->acking = 0;
-		}
-		psmouse->pktcnt = 0;
+		psmouse->nak = 1;
+		clear_bit(PSMOUSE_FLAG_ACK, &psmouse->flags);
+		clear_bit(PSMOUSE_FLAG_CMD,  &psmouse->flags);
+		wake_up_interruptible(&psmouse->wait);
 		goto out;
 	}
 
-	if (psmouse->acking) {
+	if (test_bit(PSMOUSE_FLAG_ACK, &psmouse->flags)) {
 		switch (data) {
 			case PSMOUSE_RET_ACK:
-				psmouse->ack = 1;
+				psmouse->nak = 0;
 				break;
+
 			case PSMOUSE_RET_NAK:
-				psmouse->ack = -1;
+				psmouse->nak = 1;
 				break;
+
+			/*
+			 * Workaround for mice which don't ACK the Get ID command.
+			 * These are valid mouse IDs that we recognize.
+			 */
+			case 0x00:
+			case 0x03:
+			case 0x04:
+				if (test_bit(PSMOUSE_FLAG_WAITID, &psmouse->flags)) {
+					psmouse->nak = 0;
+					break;
+				}
+				/* Fall through */
 			default:
-				psmouse->ack = 1;	/* Workaround for mice which don't ACK the Get ID command */
-				if (psmouse->cmdcnt)
-					psmouse->cmdbuf[--psmouse->cmdcnt] = data;
-				break;
+				goto out;
 		}
-		psmouse->acking = 0;
-		goto out;
+
+		if (!psmouse->nak && psmouse->cmdcnt) {
+			set_bit(PSMOUSE_FLAG_CMD, &psmouse->flags);
+			set_bit(PSMOUSE_FLAG_CMD1, &psmouse->flags);
+		}
+		clear_bit(PSMOUSE_FLAG_ACK, &psmouse->flags);
+		wake_up_interruptible(&psmouse->wait);
+
+		if (data == PSMOUSE_RET_ACK || data == PSMOUSE_RET_NAK)
+			goto out;
 	}
 
-	if (psmouse->cmdcnt) {
-		psmouse->cmdbuf[--psmouse->cmdcnt] = data;
+	if (test_bit(PSMOUSE_FLAG_CMD, &psmouse->flags)) {
+		if (psmouse->cmdcnt)
+			psmouse->cmdbuf[--psmouse->cmdcnt] = data;
+
+		if (test_and_clear_bit(PSMOUSE_FLAG_CMD1, &psmouse->flags) && psmouse->cmdcnt)
+			wake_up_interruptible(&psmouse->wait);
+
+		if (!psmouse->cmdcnt) {
+			clear_bit(PSMOUSE_FLAG_CMD, &psmouse->flags);
+			wake_up_interruptible(&psmouse->wait);
+		}
 		goto out;
 	}
 
+	if (psmouse->state == PSMOUSE_INITIALIZING)
+		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",
@@ -238,78 +270,96 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
  * psmouse_sendbyte() sends a byte to the mouse, and waits for acknowledge.
  * It doesn't handle retransmission, though it could - because when there would
  * be need for retransmissions, the mouse has to be replaced anyway.
+ *
+ * psmouse_sendbyte() can only be called from a process context
  */
 
 static int psmouse_sendbyte(struct psmouse *psmouse, unsigned char byte)
 {
-	int timeout = 10000; /* 100 msec */
-	psmouse->ack = 0;
-	psmouse->acking = 1;
-
-	if (serio_write(psmouse->serio, byte)) {
-		psmouse->acking = 0;
-		return -1;
-	}
+	psmouse->nak = 1;
+	set_bit(PSMOUSE_FLAG_ACK, &psmouse->flags);
 
-	while (!psmouse->ack && timeout--) udelay(10);
+	if (serio_write(psmouse->serio, byte) == 0)
+		wait_event_interruptible_timeout(psmouse->wait,
+				!test_bit(PSMOUSE_FLAG_ACK, &psmouse->flags),
+				msecs_to_jiffies(200));
 
-	return -(psmouse->ack <= 0);
+	clear_bit(PSMOUSE_FLAG_ACK, &psmouse->flags);
+	return -psmouse->nak;
 }
 
 /*
  * psmouse_command() sends a command and its parameters to the mouse,
  * then waits for the response and puts it in the param array.
+ *
+ * psmouse_command() can only be called from a process context
  */
 
 int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command)
 {
-	int timeout = 500000; /* 500 msec */
+	int timeout;
 	int send = (command >> 12) & 0xf;
 	int receive = (command >> 8) & 0xf;
+	int rc = -1;
 	int i;
 
-	psmouse->cmdcnt = receive;
+	timeout = msecs_to_jiffies(command == PSMOUSE_CMD_RESET_BAT ? 4000 : 500);
 
-	if (command == PSMOUSE_CMD_RESET_BAT)
-                timeout = 4000000; /* 4 sec */
+	clear_bit(PSMOUSE_FLAG_CMD, &psmouse->flags);
+	if (command == PSMOUSE_CMD_GETID)
+		set_bit(PSMOUSE_FLAG_WAITID, &psmouse->flags);
 
-	/* initialize cmdbuf with preset values from param */
-	if (receive)
-	   for (i = 0; i < receive; i++)
-		psmouse->cmdbuf[(receive - 1) - i] = param[i];
+	if (receive && param)
+		for (i = 0; i < receive; i++)
+			psmouse->cmdbuf[(receive - 1) - i] = param[i];
+
+	psmouse->cmdcnt = receive;
 
 	if (command & 0xff)
 		if (psmouse_sendbyte(psmouse, command & 0xff))
-			return (psmouse->cmdcnt = 0) - 1;
+			goto out;
 
 	for (i = 0; i < send; i++)
 		if (psmouse_sendbyte(psmouse, param[i]))
-			return (psmouse->cmdcnt = 0) - 1;
-
-	while (psmouse->cmdcnt && timeout--) {
-
-		if (psmouse->cmdcnt == 1 && command == PSMOUSE_CMD_RESET_BAT &&
-				timeout > 100000) /* do not run in a endless loop */
-			timeout = 100000; /* 1 sec */
+			goto out;
 
-		if (psmouse->cmdcnt == 1 && command == PSMOUSE_CMD_GETID &&
-		    psmouse->cmdbuf[1] != 0xab && psmouse->cmdbuf[1] != 0xac) {
+	timeout = wait_event_interruptible_timeout(psmouse->wait,
+				!test_bit(PSMOUSE_FLAG_CMD1, &psmouse->flags), timeout);
+
+	if (psmouse->cmdcnt && timeout > 0) {
+		if (command == PSMOUSE_CMD_RESET_BAT && jiffies_to_msecs(timeout) > 100)
+			timeout = msecs_to_jiffies(100);
+
+		if (command == PSMOUSE_CMD_GETID &&
+		    psmouse->cmdbuf[receive - 1] != 0xab && psmouse->cmdbuf[receive - 1] != 0xac) {
+			/*
+			 * Device behind the port is not a keyboard
+			 * so we don't need to wait for the 2nd byte
+			 * of ID response.
+			 */
+			clear_bit(PSMOUSE_FLAG_CMD, &psmouse->flags);
 			psmouse->cmdcnt = 0;
-			break;
 		}
 
-		udelay(1);
+		wait_event_interruptible_timeout(psmouse->wait,
+				!test_bit(PSMOUSE_FLAG_CMD, &psmouse->flags), timeout);
 	}
 
-	for (i = 0; i < receive; i++)
-		param[i] = psmouse->cmdbuf[(receive - 1) - i];
+	if (param)
+		for (i = 0; i < receive; i++)
+			param[i] = psmouse->cmdbuf[(receive - 1) - i];
 
-	if (psmouse->cmdcnt)
-		return (psmouse->cmdcnt = 0) - 1;
+	if (psmouse->cmdcnt && (command != PSMOUSE_CMD_RESET_BAT || psmouse->cmdcnt != 1))
+		goto out;
 
-	return 0;
-}
+	rc = 0;
 
+out:
+	clear_bit(PSMOUSE_FLAG_CMD, &psmouse->flags);
+	clear_bit(PSMOUSE_FLAG_CMD1, &psmouse->flags);
+	clear_bit(PSMOUSE_FLAG_WAITID, &psmouse->flags);
+	return rc;
+}
 
 /*
  * psmouse_sliced_command() sends an extended PS/2 command to the mouse
@@ -394,6 +444,8 @@ static int im_explorer_detect(struct psmouse *psmouse)
 {
 	unsigned char param[2];
 
+	intellimouse_detect(psmouse);
+
 	param[0] = 200;
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
 	param[0] = 200;
@@ -597,6 +649,21 @@ static void psmouse_initialize(struct psmouse *psmouse)
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETSTREAM);
 }
 
+/*
+ * 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->serio);
+	psmouse->state = new_state;
+	psmouse->pktcnt = psmouse->cmdcnt = psmouse->out_of_sync = 0;
+	psmouse->flags = 0;
+	serio_continue_rx(psmouse->serio);
+}
+
 /*
  * psmouse_activate() enables the mouse so that we get motion reports from it.
  */
@@ -606,9 +673,24 @@ static void psmouse_activate(struct psmouse *psmouse)
 	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_ENABLE))
 		printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n", psmouse->serio->phys);
 
-	psmouse->state = PSMOUSE_ACTIVATED;
+	psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+}
+
+
+/*
+ * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
+ * reports from it unless we explicitely request it.
+ */
+
+static void psmouse_deactivate(struct psmouse *psmouse)
+{
+	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_DISABLE))
+		printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n", psmouse->serio->phys);
+
+	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 }
 
+
 /*
  * psmouse_cleanup() resets the mouse into power-on state.
  */
@@ -626,22 +708,21 @@ static void psmouse_cleanup(struct serio *serio)
 
 static void psmouse_disconnect(struct serio *serio)
 {
-	struct psmouse *psmouse = serio->private;
+	struct psmouse *psmouse, *parent;
 
-	psmouse->state = PSMOUSE_CMD_MODE;
+	psmouse = serio->private;
+	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 
-	if (psmouse->ptport) {
-		if (psmouse->ptport->deactivate)
-			psmouse->ptport->deactivate(psmouse);
-		__serio_unregister_port(&psmouse->ptport->serio); /* we have serio_sem */
-		kfree(psmouse->ptport);
-		psmouse->ptport = NULL;
+	if (serio->parent && (serio->type & SERIO_TYPE) == SERIO_PS_PSTHRU) {
+		parent = serio->parent->private;
+		if (parent->pt_deactivate)
+			parent->pt_deactivate(parent);
 	}
 
 	if (psmouse->disconnect)
 		psmouse->disconnect(psmouse);
 
-	psmouse->state = PSMOUSE_IGNORE;
+	psmouse_set_state(psmouse, PSMOUSE_IGNORE);
 
 	input_unregister_device(&psmouse->dev);
 	serio_close(serio);
@@ -652,39 +733,49 @@ static void psmouse_disconnect(struct serio *serio)
  * psmouse_connect() is a callback from the serio module when
  * an unhandled serio port is found.
  */
-static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
+static void psmouse_connect(struct serio *serio, struct serio_driver *drv)
 {
-	struct psmouse *psmouse;
+	struct psmouse *psmouse, *parent = NULL;
 
 	if ((serio->type & SERIO_TYPE) != SERIO_8042 &&
 	    (serio->type & SERIO_TYPE) != SERIO_PS_PSTHRU)
 		return;
 
+	/*
+	 * If this is a pass-through port deactivate parent so the device
+	 * connected to this port can be successfully identified
+	 */
+	if (serio->parent && (serio->type & SERIO_TYPE) == SERIO_PS_PSTHRU) {
+		parent = serio->parent->private;
+		psmouse_deactivate(parent);
+	}
+
 	if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL)))
-		return;
+		goto out;
 
 	memset(psmouse, 0, sizeof(struct psmouse));
 
+	init_waitqueue_head(&psmouse->wait);
 	init_input_dev(&psmouse->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;
+	psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
 
 	serio->private = psmouse;
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(psmouse);
 		serio->private = NULL;
-		return;
+		goto out;
 	}
 
 	if (psmouse_probe(psmouse) < 0) {
 		serio_close(serio);
 		kfree(psmouse);
 		serio->private = NULL;
-		return;
+		goto out;
 	}
 
 	psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
@@ -711,63 +802,88 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 
 	printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
 
+	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
 	psmouse_initialize(psmouse);
 
-	if (psmouse->ptport) {
-		printk(KERN_INFO "serio: %s port at %s\n", psmouse->ptport->serio.name, psmouse->phys);
-		__serio_register_port(&psmouse->ptport->serio); /* we have serio_sem */
-		if (psmouse->ptport->activate)
-			psmouse->ptport->activate(psmouse);
+	if (parent && parent->pt_activate)
+		parent->pt_activate(parent);
+
+	if (serio->child) {
+		/*
+		 * Nothing to be done here, serio core will detect that
+		 * the driver set serio->child and will register it for us.
+		 */
+		printk(KERN_INFO "serio: %s port at %s\n", serio->child->name, psmouse->phys);
 	}
 
 	psmouse_activate(psmouse);
+
+out:
+	/* If this is a pass-through port the parent awaits to be activated */
+	if (parent)
+		psmouse_activate(parent);
 }
 
 
 static int psmouse_reconnect(struct serio *serio)
 {
 	struct psmouse *psmouse = serio->private;
-	struct serio_dev *dev = serio->dev;
+	struct psmouse *parent = NULL;
+	struct serio_driver *drv = serio->drv;
+	int rc = -1;
 
-	if (!dev || !psmouse) {
+	if (!drv || !psmouse) {
 		printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
 		return -1;
 	}
 
-	psmouse->state = PSMOUSE_CMD_MODE;
-	psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = psmouse->out_of_sync = 0;
+	if (serio->parent && (serio->type & SERIO_TYPE) == SERIO_PS_PSTHRU) {
+		parent = serio->parent->private;
+		psmouse_deactivate(parent);
+	}
+
+	psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
 	if (psmouse->reconnect) {
 	       if (psmouse->reconnect(psmouse))
-			return -1;
+			goto out;
 	} else if (psmouse_probe(psmouse) < 0 ||
 		   psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
-		return -1;
+		goto out;
 
 	/* ok, the device type (and capabilities) match the old one,
 	 * we can continue using it, complete intialization
 	 */
+	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
 	psmouse_initialize(psmouse);
 
-	if (psmouse->ptport) {
-       		if (psmouse_reconnect(&psmouse->ptport->serio)) {
-			__serio_unregister_port(&psmouse->ptport->serio);
-			__serio_register_port(&psmouse->ptport->serio);
-			if (psmouse->ptport->activate)
-				psmouse->ptport->activate(psmouse);
-		}
-	}
+	if (parent && parent->pt_activate)
+		parent->pt_activate(parent);
 
 	psmouse_activate(psmouse);
-	return 0;
+	rc = 0;
+
+out:
+	/* If this is a pass-through port the parent waits to be activated */
+	if (parent)
+		psmouse_activate(parent);
+
+	return rc;
 }
 
 
-static struct serio_dev psmouse_dev = {
-	.interrupt =	psmouse_interrupt,
-	.connect =	psmouse_connect,
-	.reconnect =	psmouse_reconnect,
-	.disconnect =	psmouse_disconnect,
-	.cleanup =	psmouse_cleanup,
+static struct serio_driver psmouse_drv = {
+	.driver		= {
+		.name	= "psmouse",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= psmouse_interrupt,
+	.connect	= psmouse_connect,
+	.reconnect	= psmouse_reconnect,
+	.disconnect	= psmouse_disconnect,
+	.cleanup	= psmouse_cleanup,
 };
 
 static inline void psmouse_parse_proto(void)
@@ -787,13 +903,13 @@ static inline void psmouse_parse_proto(void)
 int __init psmouse_init(void)
 {
 	psmouse_parse_proto();
-	serio_register_device(&psmouse_dev);
+	serio_register_driver(&psmouse_drv);
 	return 0;
 }
 
 void __exit psmouse_exit(void)
 {
-	serio_unregister_device(&psmouse_dev);
+	serio_unregister_driver(&psmouse_drv);
 }
 
 module_init(psmouse_init);

drivers/input/mouse/psmouse.h

@@ -9,6 +9,7 @@
 #define PSMOUSE_CMD_GETID	0x02f2
 #define PSMOUSE_CMD_SETRATE	0x10f3
 #define PSMOUSE_CMD_ENABLE	0x00f4
+#define PSMOUSE_CMD_DISABLE	0x00f5
 #define PSMOUSE_CMD_RESET_DIS	0x00f6
 #define PSMOUSE_CMD_RESET_BAT	0x02ff
 
@@ -17,10 +18,17 @@
 #define PSMOUSE_RET_ACK		0xfa
 #define PSMOUSE_RET_NAK		0xfe
 
-/* psmouse states */
-#define PSMOUSE_CMD_MODE	0
-#define PSMOUSE_ACTIVATED	1
-#define PSMOUSE_IGNORE		2
+#define PSMOUSE_FLAG_ACK	0	/* Waiting for ACK/NAK */
+#define PSMOUSE_FLAG_CMD	1	/* Waiting for command to finish */
+#define PSMOUSE_FLAG_CMD1	2	/* Waiting for the first byte of command response */
+#define PSMOUSE_FLAG_WAITID	3	/* Command execiting is GET ID */
+
+enum psmouse_state {
+	PSMOUSE_IGNORE,
+	PSMOUSE_INITIALIZING,
+	PSMOUSE_CMD_MODE,
+	PSMOUSE_ACTIVATED,
+};
 
 /* psmouse protocol handler return codes */
 typedef enum {
@@ -29,20 +37,10 @@ typedef enum {
 	PSMOUSE_FULL_PACKET
 } psmouse_ret_t;
 
-struct psmouse;
-
-struct psmouse_ptport {
-	struct serio serio;
-
-	void (*activate)(struct psmouse *parent);
-	void (*deactivate)(struct psmouse *parent);
-};
-
 struct psmouse {
 	void *private;
 	struct input_dev dev;
 	struct serio *serio;
-	struct psmouse_ptport *ptport;
 	char *vendor;
 	char *name;
 	unsigned char cmdbuf[8];
@@ -53,16 +51,22 @@ struct psmouse {
 	unsigned char model;
 	unsigned long last;
 	unsigned long out_of_sync;
-	unsigned char state;
-	char acking;
-	volatile char ack;
+	enum psmouse_state state;
+	unsigned char nak;
 	char error;
 	char devname[64];
 	char phys[32];
+	unsigned long flags;
 
-	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse, struct pt_regs *regs); 
+	/* Used to signal completion from interrupt handler */
+	wait_queue_head_t wait;
+
+	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse, struct pt_regs *regs);
 	int (*reconnect)(struct psmouse *psmouse);
 	void (*disconnect)(struct psmouse *psmouse);
+
+	void (*pt_activate)(struct psmouse *psmouse);
+	void (*pt_deactivate)(struct psmouse *psmouse);
 };
 
 #define PSMOUSE_PS2		1

drivers/input/mouse/sermouse.c

@@ -37,8 +37,10 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+#define DRIVER_DESC	"Serial mouse driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Serial mouse driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 static char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
@@ -237,7 +239,7 @@ static void sermouse_disconnect(struct serio *serio)
  * an unhandled serio port is found.
  */
 
-static void sermouse_connect(struct serio *serio, struct serio_dev *dev)
+static void sermouse_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct sermouse *sermouse;
 	unsigned char c;
@@ -279,7 +281,7 @@ static void sermouse_connect(struct serio *serio, struct serio_dev *dev)
 	sermouse->dev.id.product = c;
 	sermouse->dev.id.version = 0x0100;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(sermouse);
 		return;
 	}
@@ -289,21 +291,25 @@ static void sermouse_connect(struct serio *serio, struct serio_dev *dev)
 	printk(KERN_INFO "input: %s on %s\n", sermouse_protocols[sermouse->type], serio->phys);
 }
 
-static struct serio_dev sermouse_dev = {
-	.interrupt =	sermouse_interrupt,
-	.connect =	sermouse_connect,
-	.disconnect =	sermouse_disconnect
+static struct serio_driver sermouse_drv = {
+	.driver		= {
+		.name	= "sermouse",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= sermouse_interrupt,
+	.connect	= sermouse_connect,
+	.disconnect	= sermouse_disconnect,
 };
 
 int __init sermouse_init(void)
 {
-	serio_register_device(&sermouse_dev);
+	serio_register_driver(&sermouse_drv);
 	return 0;
 }
 
 void __exit sermouse_exit(void)
 {
-	serio_unregister_device(&sermouse_dev);
+	serio_unregister_driver(&sermouse_drv);
 }
 
 module_init(sermouse_init);

drivers/input/mouse/synaptics.c

@@ -212,9 +212,9 @@ static int synaptics_set_mode(struct psmouse *psmouse, int mode)
 /*****************************************************************************
  *	Synaptics pass-through PS/2 port support
  ****************************************************************************/
-static int synaptics_pt_write(struct serio *port, unsigned char c)
+static int synaptics_pt_write(struct serio *serio, unsigned char c)
 {
-	struct psmouse *parent = port->driver;
+	struct psmouse *parent = serio->parent->private;
 	char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
 
 	if (psmouse_sliced_command(parent, c))
@@ -233,22 +233,19 @@ static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet
 {
 	struct psmouse *child = ptport->private;
 
-	if (child) {
-		if (child->state == PSMOUSE_ACTIVATED) {
-			serio_interrupt(ptport, packet[1], 0, NULL);
-			serio_interrupt(ptport, packet[4], 0, NULL);
-			serio_interrupt(ptport, packet[5], 0, NULL);
-			if (child->type >= PSMOUSE_GENPS)
-				serio_interrupt(ptport, packet[2], 0, NULL);
-		} else if (child->state != PSMOUSE_IGNORE) {
-			serio_interrupt(ptport, packet[1], 0, NULL);
-		}
-	}
+	if (child && child->state == PSMOUSE_ACTIVATED) {
+		serio_interrupt(ptport, packet[1], 0, NULL);
+		serio_interrupt(ptport, packet[4], 0, NULL);
+		serio_interrupt(ptport, packet[5], 0, NULL);
+		if (child->type >= PSMOUSE_GENPS)
+			serio_interrupt(ptport, packet[2], 0, NULL);
+	} else
+		serio_interrupt(ptport, packet[1], 0, NULL);
 }
 
 static void synaptics_pt_activate(struct psmouse *psmouse)
 {
-	struct psmouse *child = psmouse->ptport->serio.private;
+	struct psmouse *child = psmouse->serio->child->private;
 
 	/* adjust the touchpad to child's choice of protocol */
 	if (child && child->type >= PSMOUSE_GENPS) {
@@ -259,23 +256,25 @@ static void synaptics_pt_activate(struct psmouse *psmouse)
 
 static void synaptics_pt_create(struct psmouse *psmouse)
 {
-	struct psmouse_ptport *port;
+	struct serio *serio;
 
-	psmouse->ptport = port = kmalloc(sizeof(struct psmouse_ptport), GFP_KERNEL);
-	if (!port) {
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!serio) {
 		printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n");
 		return;
 	}
 
-	memset(port, 0, sizeof(struct psmouse_ptport));
+	memset(serio, 0, sizeof(struct serio));
+
+	serio->type = SERIO_PS_PSTHRU;
+	strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
+	strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
+	serio->write = synaptics_pt_write;
+	serio->parent = psmouse->serio;
 
-	port->serio.type = SERIO_PS_PSTHRU;
-	port->serio.name = "Synaptics pass-through";
-	port->serio.phys = "synaptics-pt/serio0";
-	port->serio.write = synaptics_pt_write;
-	port->serio.driver = psmouse;
+	psmouse->pt_activate = synaptics_pt_activate;
 
-	port->activate = synaptics_pt_activate;
+	psmouse->serio->child = serio;
 }
 
 /*****************************************************************************
@@ -470,9 +469,10 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse, struct pt_r
 		if (unlikely(priv->pkt_type == SYN_NEWABS))
 			priv->pkt_type = synaptics_detect_pkt_type(psmouse);
 
-		if (psmouse->ptport && psmouse->ptport->serio.dev && synaptics_is_pt_packet(psmouse->packet))
-			synaptics_pass_pt_packet(&psmouse->ptport->serio, psmouse->packet);
-		else
+		if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) {
+			if (psmouse->serio->child)
+				synaptics_pass_pt_packet(psmouse->serio->child, psmouse->packet);
+		} else
 			synaptics_process_packet(psmouse);
 
 		return PSMOUSE_FULL_PACKET;

drivers/input/mouse/vsxxxaa.c

@@ -82,8 +82,10 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+#define DRIVER_DESC	"Serial DEC VSXXX-AA/GA mouse / DEC tablet driver"
+
 MODULE_AUTHOR ("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
-MODULE_DESCRIPTION ("Serial DEC VSXXX-AA/GA mouse / DEC tablet driver");
+MODULE_DESCRIPTION (DRIVER_DESC);
 MODULE_LICENSE ("GPL");
 
 #undef VSXXXAA_DEBUG
@@ -482,7 +484,7 @@ vsxxxaa_disconnect (struct serio *serio)
 }
 
 static void
-vsxxxaa_connect (struct serio *serio, struct serio_dev *dev)
+vsxxxaa_connect (struct serio *serio, struct serio_driver *drv)
 {
 	struct vsxxxaa *mouse;
 
@@ -524,7 +526,7 @@ vsxxxaa_connect (struct serio *serio, struct serio_dev *dev)
 	mouse->dev.id.bustype = BUS_RS232;
 	mouse->serio = serio;
 
-	if (serio_open (serio, dev)) {
+	if (serio_open (serio, drv)) {
 		kfree (mouse);
 		return;
 	}
@@ -540,23 +542,27 @@ vsxxxaa_connect (struct serio *serio, struct serio_dev *dev)
 	printk (KERN_INFO "input: %s on %s\n", mouse->name, mouse->phys);
 }
 
-static struct serio_dev vsxxxaa_dev = {
-	.connect = vsxxxaa_connect,
-	.interrupt = vsxxxaa_interrupt,
-	.disconnect = vsxxxaa_disconnect,
+static struct serio_driver vsxxxaa_drv = {
+	.driver		= {
+		.name	= "vsxxxaa",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= vsxxxaa_connect,
+	.interrupt	= vsxxxaa_interrupt,
+	.disconnect	= vsxxxaa_disconnect,
 };
 
 int __init
 vsxxxaa_init (void)
 {
-	serio_register_device (&vsxxxaa_dev);
+	serio_register_driver(&vsxxxaa_drv);
 	return 0;
 }
 
 void __exit
 vsxxxaa_exit (void)
 {
-	serio_unregister_device (&vsxxxaa_dev);
+	serio_unregister_driver(&vsxxxaa_drv);
 }
 
 module_init (vsxxxaa_init);

drivers/input/mousedev.c

@@ -48,8 +48,15 @@ static int yres = CONFIG_INPUT_MOUSEDEV_SCREEN_Y;
 module_param(yres, uint, 0);
 MODULE_PARM_DESC(yres, "Vertical screen resolution");
 
-struct mousedev_motion {
+static unsigned tap_time = 200;
+module_param(tap_time, uint, 0);
+MODULE_PARM_DESC(tap_time, "Tap time for touchpads in absolute mode (msecs)");
+
+struct mousedev_hw_data {
 	int dx, dy, dz;
+	int x, y;
+	int abs_event;
+	unsigned long buttons;
 };
 
 struct mousedev {
@@ -61,22 +68,38 @@ struct mousedev {
 	struct list_head list;
 	struct input_handle handle;
 
-	struct mousedev_motion packet;
-	unsigned long buttons;
+	struct mousedev_hw_data packet;
 	unsigned int pkt_count;
 	int old_x[4], old_y[4];
-	unsigned int touch;
+	unsigned long touch;
+};
+
+enum mousedev_emul {
+	MOUSEDEV_EMUL_PS2,
+	MOUSEDEV_EMUL_IMPS,
+	MOUSEDEV_EMUL_EXPS
 };
 
+struct mousedev_motion {
+	int dx, dy, dz;
+	unsigned long buttons;
+};
+
+#define PACKET_QUEUE_LEN	16
 struct mousedev_list {
 	struct fasync_struct *fasync;
 	struct mousedev *mousedev;
 	struct list_head node;
-	int dx, dy, dz;
-	unsigned long buttons;
+
+	struct mousedev_motion packets[PACKET_QUEUE_LEN];
+	unsigned int head, tail;
+	spinlock_t packet_lock;
+	int pos_x, pos_y;
+
 	signed char ps2[6];
 	unsigned char ready, buffer, bufsiz;
-	unsigned char mode, imexseq, impsseq;
+	unsigned char imexseq, impsseq;
+	enum mousedev_emul mode;
 };
 
 #define MOUSEDEV_SEQ_LEN	6
@@ -119,15 +142,19 @@ static void mousedev_abs_event(struct input_dev *dev, struct mousedev *mousedev,
 		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;
+			if (value > dev->absmax[ABS_X]) value = dev->absmax[ABS_X];
+			if (value < dev->absmin[ABS_X]) value = dev->absmin[ABS_X];
+			mousedev->packet.x = ((value - dev->absmin[ABS_X]) * xres) / size;
+			mousedev->packet.abs_event = 1;
 			break;
 
 		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;
+			if (value > dev->absmax[ABS_Y]) value = dev->absmax[ABS_Y];
+			if (value < dev->absmin[ABS_Y]) value = dev->absmin[ABS_Y];
+			mousedev->packet.y = yres - ((value - dev->absmin[ABS_Y]) * yres) / size;
+			mousedev->packet.abs_event = 1;
 			break;
 	}
 }
@@ -165,30 +192,82 @@ static void mousedev_key_event(struct mousedev *mousedev, unsigned int code, int
 	}
 
 	if (value) {
-		set_bit(index, &mousedev->buttons);
-		set_bit(index, &mousedev_mix.buttons);
+		set_bit(index, &mousedev->packet.buttons);
+		set_bit(index, &mousedev_mix.packet.buttons);
 	} else {
-		clear_bit(index, &mousedev->buttons);
-		clear_bit(index, &mousedev_mix.buttons);
+		clear_bit(index, &mousedev->packet.buttons);
+		clear_bit(index, &mousedev_mix.packet.buttons);
 	}
 }
 
-static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_motion *packet)
+static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_hw_data *packet)
 {
 	struct mousedev_list *list;
+	struct mousedev_motion *p;
+	unsigned long flags;
 
 	list_for_each_entry(list, &mousedev->list, node) {
-		list->dx += packet->dx;
-		list->dy += packet->dy;
-		list->dz += packet->dz;
-		list->buttons = mousedev->buttons;
+		spin_lock_irqsave(&list->packet_lock, flags);
+
+		p = &list->packets[list->head];
+		if (list->ready && p->buttons != packet->buttons) {
+			unsigned int new_head = (list->head + 1) % PACKET_QUEUE_LEN;
+			if (new_head != list->tail) {
+				p = &list->packets[list->head = new_head];
+				memset(p, 0, sizeof(struct mousedev_motion));
+			}
+		}
+
+		if (packet->abs_event) {
+			p->dx += packet->x - list->pos_x;
+			p->dy += packet->y - list->pos_y;
+			list->pos_x = packet->x;
+			list->pos_y = packet->y;
+		}
+
+		list->pos_x += packet->dx;
+		list->pos_x = list->pos_x < 0 ? 0 : (list->pos_x >= xres ? xres : list->pos_x);
+		list->pos_y += packet->dy;
+		list->pos_y = list->pos_y < 0 ? 0 : (list->pos_y >= yres ? yres : list->pos_y);
+
+		p->dx += packet->dx;
+		p->dy += packet->dy;
+		p->dz += packet->dz;
+		p->buttons = mousedev->packet.buttons;
+
 		list->ready = 1;
+
+		spin_unlock_irqrestore(&list->packet_lock, flags);
 		kill_fasync(&list->fasync, SIGIO, POLL_IN);
 	}
 
 	wake_up_interruptible(&mousedev->wait);
 }
 
+static void mousedev_touchpad_touch(struct mousedev *mousedev, int value)
+{
+	if (!value) {
+		if (mousedev->touch &&
+		    time_before(jiffies, mousedev->touch + msecs_to_jiffies(tap_time))) {
+			/*
+			 * Toggle left button to emulate tap.
+			 * We rely on the fact that mousedev_mix always has 0
+			 * motion packet so we won't mess current position.
+			 */
+			set_bit(0, &mousedev->packet.buttons);
+			set_bit(0, &mousedev_mix.packet.buttons);
+			mousedev_notify_readers(mousedev, &mousedev_mix.packet);
+			mousedev_notify_readers(&mousedev_mix, &mousedev_mix.packet);
+			clear_bit(0, &mousedev->packet.buttons);
+			clear_bit(0, &mousedev_mix.packet.buttons);
+		}
+		mousedev->touch = mousedev->pkt_count = 0;
+	}
+	else
+		if (!mousedev->touch)
+			mousedev->touch = jiffies;
+}
+
 static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
 {
 	struct mousedev *mousedev = handle->private;
@@ -212,12 +291,8 @@ static void mousedev_event(struct input_handle *handle, unsigned int type, unsig
 
 		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;
-				}
+				if (code == BTN_TOUCH && test_bit(BTN_TOOL_FINGER, handle->dev->keybit))
+					mousedev_touchpad_touch(mousedev, value);
 				else
 					mousedev_key_event(mousedev, code, value);
 			}
@@ -237,7 +312,8 @@ static void mousedev_event(struct input_handle *handle, unsigned int type, unsig
 				mousedev_notify_readers(mousedev, &mousedev->packet);
 				mousedev_notify_readers(&mousedev_mix, &mousedev->packet);
 
-				memset(&mousedev->packet, 0, sizeof(struct mousedev_motion));
+				mousedev->packet.dx = mousedev->packet.dy = mousedev->packet.dz = 0;
+				mousedev->packet.abs_event = 0;
 			}
 			break;
 	}
@@ -322,6 +398,9 @@ static int mousedev_open(struct inode * inode, struct file * file)
 		return -ENOMEM;
 	memset(list, 0, sizeof(struct mousedev_list));
 
+	spin_lock_init(&list->packet_lock);
+	list->pos_x = xres / 2;
+	list->pos_y = yres / 2;
 	list->mousedev = mousedev_table[i];
 	list_add_tail(&list->node, &mousedev_table[i]->list);
 	file->private_data = list;
@@ -341,32 +420,56 @@ static int mousedev_open(struct inode * inode, struct file * file)
 	return 0;
 }
 
-static void mousedev_packet(struct mousedev_list *list, unsigned char off)
+static inline int mousedev_limit_delta(int delta, int limit)
 {
-	list->ps2[off] = 0x08 | ((list->dx < 0) << 4) | ((list->dy < 0) << 5) | (list->buttons & 0x07);
-	list->ps2[off + 1] = (list->dx > 127 ? 127 : (list->dx < -127 ? -127 : list->dx));
-	list->ps2[off + 2] = (list->dy > 127 ? 127 : (list->dy < -127 ? -127 : list->dy));
-	list->dx -= list->ps2[off + 1];
-	list->dy -= list->ps2[off + 2];
-	list->bufsiz = off + 3;
-
-	if (list->mode == 2) {
-		list->ps2[off + 3] = (list->dz > 7 ? 7 : (list->dz < -7 ? -7 : list->dz));
-		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);
+	return delta > limit ? limit : (delta < -limit ? -limit : delta);
+}
+
+static void mousedev_packet(struct mousedev_list *list, signed char *ps2_data)
+{
+	struct mousedev_motion *p;
+	unsigned long flags;
+
+	spin_lock_irqsave(&list->packet_lock, flags);
+	p = &list->packets[list->tail];
+
+	ps2_data[0] = 0x08 | ((p->dx < 0) << 4) | ((p->dy < 0) << 5) | (p->buttons & 0x07);
+	ps2_data[1] = mousedev_limit_delta(p->dx, 127);
+	ps2_data[2] = mousedev_limit_delta(p->dy, 127);
+	p->dx -= ps2_data[1];
+	p->dy -= ps2_data[2];
+
+	switch (list->mode) {
+		case MOUSEDEV_EMUL_EXPS:
+			ps2_data[3] = mousedev_limit_delta(p->dz, 127);
+			p->dz -= ps2_data[3];
+			ps2_data[3] = (ps2_data[3] & 0x0f) | ((p->buttons & 0x18) << 1);
+			list->bufsiz = 4;
+			break;
+
+		case MOUSEDEV_EMUL_IMPS:
+			ps2_data[0] |= ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1);
+			ps2_data[3] = mousedev_limit_delta(p->dz, 127);
+			p->dz -= ps2_data[3];
+			list->bufsiz = 4;
+			break;
+
+		case MOUSEDEV_EMUL_PS2:
+		default:
+			ps2_data[0] |= ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1);
+			p->dz = 0;
+			list->bufsiz = 3;
+			break;
 	}
 
-	if (list->mode == 1) {
-		list->ps2[off + 3] = (list->dz > 127 ? 127 : (list->dz < -127 ? -127 : list->dz));
-		list->dz -= list->ps2[off + 3];
-		list->bufsiz++;
+	if (!p->dx && !p->dy && !p->dz) {
+		if (list->tail != list->head)
+			list->tail = (list->tail + 1) % PACKET_QUEUE_LEN;
+		if (list->tail == list->head)
+			list->ready = 0;
 	}
 
-	if (!list->dx && !list->dy && (!list->mode || !list->dz)) list->ready = 0;
-	list->buffer = list->bufsiz;
+	spin_unlock_irqrestore(&list->packet_lock, flags);
 }
 
 
@@ -384,31 +487,31 @@ static ssize_t mousedev_write(struct file * file, const char __user * buffer, si
 		if (c == mousedev_imex_seq[list->imexseq]) {
 			if (++list->imexseq == MOUSEDEV_SEQ_LEN) {
 				list->imexseq = 0;
-				list->mode = 2;
+				list->mode = MOUSEDEV_EMUL_EXPS;
 			}
 		} else list->imexseq = 0;
 
 		if (c == mousedev_imps_seq[list->impsseq]) {
 			if (++list->impsseq == MOUSEDEV_SEQ_LEN) {
 				list->impsseq = 0;
-				list->mode = 1;
+				list->mode = MOUSEDEV_EMUL_IMPS;
 			}
 		} else list->impsseq = 0;
 
 		list->ps2[0] = 0xfa;
-		list->bufsiz = 1;
 
 		switch (c) {
 
 			case 0xeb: /* Poll */
-				mousedev_packet(list, 1);
+				mousedev_packet(list, &list->ps2[1]);
+				list->bufsiz++; /* account for leading ACK */
 				break;
 
 			case 0xf2: /* Get ID */
 				switch (list->mode) {
-					case 0: list->ps2[1] = 0; break;
-					case 1: list->ps2[1] = 3; break;
-					case 2: list->ps2[1] = 4; break;
+					case MOUSEDEV_EMUL_PS2:  list->ps2[1] = 0; break;
+					case MOUSEDEV_EMUL_IMPS: list->ps2[1] = 3; break;
+					case MOUSEDEV_EMUL_EXPS: list->ps2[1] = 4; break;
 				}
 				list->bufsiz = 2;
 				break;
@@ -419,13 +522,15 @@ static ssize_t mousedev_write(struct file * file, const char __user * buffer, si
 				break;
 
 			case 0xff: /* Reset */
-				list->impsseq = 0;
-				list->imexseq = 0;
-				list->mode = 0;
-				list->ps2[1] = 0xaa;
-				list->ps2[2] = 0x00;
+				list->impsseq = list->imexseq = 0;
+				list->mode = MOUSEDEV_EMUL_PS2;
+				list->ps2[1] = 0xaa; list->ps2[2] = 0x00;
 				list->bufsiz = 3;
 				break;
+
+			default:
+				list->bufsiz = 1;
+				break;
 		}
 
 		list->buffer = list->bufsiz;
@@ -446,13 +551,19 @@ static ssize_t mousedev_read(struct file * file, char __user * buffer, size_t co
 	if (!list->ready && !list->buffer && (file->f_flags & O_NONBLOCK))
 		return -EAGAIN;
 
-	retval = wait_event_interruptible(list->mousedev->wait, list->ready || list->buffer);
+	retval = wait_event_interruptible(list->mousedev->wait,
+					  !list->mousedev->exist || list->ready || list->buffer);
 
 	if (retval)
 		return retval;
 
-	if (!list->buffer && list->ready)
-		mousedev_packet(list, 0);
+	if (!list->mousedev->exist)
+		return -ENODEV;
+
+	if (!list->buffer && list->ready) {
+		mousedev_packet(list, list->ps2);
+		list->buffer = list->bufsiz;
+	}
 
 	if (count > list->buffer)
 		count = list->buffer;

drivers/input/serio/Kconfig

@@ -130,3 +130,19 @@ config SERIO_MACEPS2
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called maceps2.
+
+config SERIO_RAW
+	tristate "Raw access to serio ports"
+	depends on SERIO
+	help
+	  Say Y here if you want to have raw access to serio ports, such as
+	  AUX ports on i8042 keyboard controller. Each serio port that is
+	  bound to this driver will be accessible via a char device with
+	  major 10 and dynamically allocated minor. The driver will try
+	  allocating minor 1 (that historically corresponds to /dev/psaux)
+	  first. To bind this driver to a serio port use sysfs interface:
+
+	      echo -n "serio_raw" > /sys/bus/serio/devices/serioX/driver
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called serio_raw.

drivers/input/serio/Makefile

@@ -17,3 +17,4 @@ obj-$(CONFIG_SERIO_98KBD)	+= 98kbd-io.o
 obj-$(CONFIG_SERIO_GSCPS2)	+= gscps2.o
 obj-$(CONFIG_SERIO_PCIPS2)	+= pcips2.o
 obj-$(CONFIG_SERIO_MACEPS2)	+= maceps2.o
+obj-$(CONFIG_SERIO_RAW)		+= serio_raw.o

drivers/input/serio/ambakmi.c

@@ -29,7 +29,7 @@
 #define KMI_BASE	(kmi->base)
 
 struct amba_kmi_port {
-	struct serio		io;
+	struct serio		*io;
 	struct clk		*clk;
 	unsigned char		*base;
 	unsigned int		irq;
@@ -44,7 +44,7 @@ static irqreturn_t amba_kmi_int(int irq, void *dev_id, struct pt_regs *regs)
 	int handled = IRQ_NONE;
 
 	while (status & KMIIR_RXINTR) {
-		serio_interrupt(&kmi->io, readb(KMIDATA), 0, regs);
+		serio_interrupt(kmi->io, readb(KMIDATA), 0, regs);
 		status = readb(KMIIR);
 		handled = IRQ_HANDLED;
 	}
@@ -54,7 +54,7 @@ static irqreturn_t amba_kmi_int(int irq, void *dev_id, struct pt_regs *regs)
 
 static int amba_kmi_write(struct serio *io, unsigned char val)
 {
-	struct amba_kmi_port *kmi = io->driver;
+	struct amba_kmi_port *kmi = io->port_data;
 	unsigned int timeleft = 10000; /* timeout in 100ms */
 
 	while ((readb(KMISTAT) & KMISTAT_TXEMPTY) == 0 && timeleft--)
@@ -68,7 +68,7 @@ static int amba_kmi_write(struct serio *io, unsigned char val)
 
 static int amba_kmi_open(struct serio *io)
 {
-	struct amba_kmi_port *kmi = io->driver;
+	struct amba_kmi_port *kmi = io->port_data;
 	unsigned int divisor;
 	int ret;
 
@@ -105,7 +105,7 @@ static int amba_kmi_open(struct serio *io)
 
 static void amba_kmi_close(struct serio *io)
 {
-	struct amba_kmi_port *kmi = io->driver;
+	struct amba_kmi_port *kmi = io->port_data;
 
 	writeb(0, KMICR);
 
@@ -117,6 +117,7 @@ static void amba_kmi_close(struct serio *io)
 static int amba_kmi_probe(struct amba_device *dev, void *id)
 {
 	struct amba_kmi_port *kmi;
+	struct serio *io;
 	int ret;
 
 	ret = amba_request_regions(dev, NULL);
@@ -124,21 +125,25 @@ static int amba_kmi_probe(struct amba_device *dev, void *id)
 		return ret;
 
 	kmi = kmalloc(sizeof(struct amba_kmi_port), GFP_KERNEL);
-	if (!kmi) {
+	io = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!kmi || !io) {
 		ret = -ENOMEM;
 		goto out;
 	}
 
 	memset(kmi, 0, sizeof(struct amba_kmi_port));
-
-	kmi->io.type	= SERIO_8042;
-	kmi->io.write	= amba_kmi_write;
-	kmi->io.open	= amba_kmi_open;
-	kmi->io.close	= amba_kmi_close;
-	kmi->io.name	= dev->dev.bus_id;
-	kmi->io.phys	= dev->dev.bus_id;
-	kmi->io.driver	= kmi;
-
+	memset(io, 0, sizeof(struct serio));
+
+	io->type	= SERIO_8042;
+	io->write	= amba_kmi_write;
+	io->open	= amba_kmi_open;
+	io->close	= amba_kmi_close;
+	strlcpy(io->name, dev->dev.bus_id, sizeof(io->name));
+	strlcpy(io->phys, dev->dev.bus_id, sizeof(io->phys));
+	io->port_data	= kmi;
+	io->dev.parent	= &dev->dev;
+
+	kmi->io 	= io;
 	kmi->base	= ioremap(dev->res.start, KMI_SIZE);
 	if (!kmi->base) {
 		ret = -ENOMEM;
@@ -154,13 +159,14 @@ static int amba_kmi_probe(struct amba_device *dev, void *id)
 	kmi->irq = dev->irq[0];
 	amba_set_drvdata(dev, kmi);
 
-	serio_register_port(&kmi->io);
+	serio_register_port(kmi->io);
 	return 0;
 
  unmap:
 	iounmap(kmi->base);
  out:
 	kfree(kmi);
+	kfree(io);
 	amba_release_regions(dev);
 	return ret;
 }
@@ -171,7 +177,7 @@ static int amba_kmi_remove(struct amba_device *dev)
 
 	amba_set_drvdata(dev, NULL);
 
-	serio_unregister_port(&kmi->io);
+	serio_unregister_port(kmi->io);
 	clk_put(kmi->clk);
 	iounmap(kmi->base);
 	kfree(kmi);
@@ -184,7 +190,7 @@ static int amba_kmi_resume(struct amba_device *dev)
 	struct amba_kmi_port *kmi = amba_get_drvdata(dev);
 
 	/* kick the serio layer to rescan this port */
-	serio_rescan(&kmi->io);
+	serio_reconnect(kmi->io);
 
 	return 0;
 }
@@ -214,7 +220,7 @@ static int __init amba_kmi_init(void)
 
 static void __exit amba_kmi_exit(void)
 {
-	return amba_driver_unregister(&ambakmi_driver);
+	amba_driver_unregister(&ambakmi_driver);
 }
 
 module_init(amba_kmi_init);

drivers/input/serio/ct82c710.c

@@ -36,6 +36,7 @@
 #include <linux/interrupt.h>
 #include <linux/serio.h>
 #include <linux/errno.h>
+#include <linux/err.h>
 
 #include <asm/io.h>
 
@@ -43,9 +44,6 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("82C710 C&T mouse port chip driver");
 MODULE_LICENSE("GPL");
 
-static char ct82c710_name[] = "C&T 82c710 mouse port";
-static char ct82c710_phys[16];
-
 /*
  * ct82c710 interface
  */
@@ -61,10 +59,22 @@ static char ct82c710_phys[16];
 
 #define CT82C710_IRQ          12
 
-static int ct82c710_data;
-static int ct82c710_status;
+#define CT82C710_DATA         ct82c710_iores.start
+#define CT82C710_STATUS       (ct82c710_iores.start + 1)
+
+static struct serio *ct82c710_port;
+static struct platform_device *ct82c710_device;
+static struct resource ct82c710_iores;
+
+/*
+ * Interrupt handler for the 82C710 mouse port. A character
+ * is waiting in the 82C710.
+ */
 
-static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id, struct pt_regs * regs);
+static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id, struct pt_regs * regs)
+{
+	return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0, regs);
+}
 
 /*
  * Wait for device to send output char and flush any input char.
@@ -74,10 +84,10 @@ static int ct82c170_wait(void)
 {
 	int timeout = 60000;
 
-	while ((inb(ct82c710_status) & (CT82C710_RX_FULL | CT82C710_TX_IDLE | CT82C710_DEV_IDLE))
+	while ((inb(CT82C710_STATUS) & (CT82C710_RX_FULL | CT82C710_TX_IDLE | CT82C710_DEV_IDLE))
 		       != (CT82C710_DEV_IDLE | CT82C710_TX_IDLE) && timeout) {
 
-		if (inb_p(ct82c710_status) & CT82C710_RX_FULL) inb_p(ct82c710_data);
+		if (inb_p(CT82C710_STATUS) & CT82C710_RX_FULL) inb_p(CT82C710_DATA);
 
 		udelay(1);
 		timeout--;
@@ -91,7 +101,7 @@ static void ct82c710_close(struct serio *serio)
 	if (ct82c170_wait())
 		printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
 
-	outb_p(inb_p(ct82c710_status) & ~(CT82C710_ENABLE | CT82C710_INTS_ON), ct82c710_status);
+	outb_p(inb_p(CT82C710_STATUS) & ~(CT82C710_ENABLE | CT82C710_INTS_ON), CT82C710_STATUS);
 
 	if (ct82c170_wait())
 		printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
@@ -106,21 +116,21 @@ static int ct82c710_open(struct serio *serio)
 	if (request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL))
 		return -1;
 
-	status = inb_p(ct82c710_status);
+	status = inb_p(CT82C710_STATUS);
 
 	status |= (CT82C710_ENABLE | CT82C710_RESET);
-	outb_p(status, ct82c710_status);
+	outb_p(status, CT82C710_STATUS);
 
 	status &= ~(CT82C710_RESET);
-	outb_p(status, ct82c710_status);
+	outb_p(status, CT82C710_STATUS);
 
 	status |= CT82C710_INTS_ON;
-	outb_p(status, ct82c710_status);	/* Enable interrupts */
+	outb_p(status, CT82C710_STATUS);	/* Enable interrupts */
 
 	while (ct82c170_wait()) {
 		printk(KERN_ERR "ct82c710: Device busy in open()\n");
 		status &= ~(CT82C710_ENABLE | CT82C710_INTS_ON);
-		outb_p(status, ct82c710_status);
+		outb_p(status, CT82C710_STATUS);
 		free_irq(CT82C710_IRQ, NULL);
 		return -1;
 	}
@@ -135,30 +145,10 @@ static int ct82c710_open(struct serio *serio)
 static int ct82c710_write(struct serio *port, unsigned char c)
 {
 	if (ct82c170_wait()) return -1;
-	outb_p(c, ct82c710_data);
+	outb_p(c, CT82C710_DATA);
 	return 0;
 }
 
-static struct serio ct82c710_port =
-{
-	.type	= SERIO_8042,
-	.name	= ct82c710_name,
-	.phys	= ct82c710_phys,
-	.write	= ct82c710_write,
-	.open	= ct82c710_open,
-	.close	= ct82c710_close,
-};
-
-/*
- * Interrupt handler for the 82C710 mouse port. A character
- * is waiting in the 82C710.
- */
-
-static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id, struct pt_regs * regs)
-{
-	return serio_interrupt(&ct82c710_port, inb(ct82c710_data), 0, regs);
-}
-
 /*
  * See if we can find a 82C710 device. Read mouse address.
  */
@@ -175,36 +165,60 @@ static int __init ct82c710_probe(void)
 		return -1;				/* No: no 82C710 here */
 
 	outb_p(0x0d, 0x390);				/* Write index */
-	ct82c710_data = inb_p(0x391) << 2;		/* Get mouse I/O address */
-	ct82c710_status = ct82c710_data + 1;
+	ct82c710_iores.start = inb_p(0x391) << 2;	/* Get mouse I/O address */
+	ct82c710_iores.end = ct82c710_iores.start + 1;
+	ct82c710_iores.flags = IORESOURCE_IO;
 	outb_p(0x0f, 0x390);
 	outb_p(0x0f, 0x391);				/* Close config mode */
 
 	return 0;
 }
 
+static struct serio * __init ct82c710_allocate_port(void)
+{
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(struct serio));
+		serio->type = SERIO_8042;
+		serio->open = ct82c710_open;
+		serio->close = ct82c710_close;
+		serio->write = ct82c710_write;
+		serio->dev.parent = &ct82c710_device->dev;
+		strlcpy(serio->name, "C&T 82c710 mouse port", sizeof(serio->name));
+		snprintf(serio->phys, sizeof(serio->phys), "isa%04lx/serio0", CT82C710_DATA);
+	}
+
+	return serio;
+}
+
 int __init ct82c710_init(void)
 {
 	if (ct82c710_probe())
 		return -ENODEV;
 
-	if (request_region(ct82c710_data, 2, "ct82c710"))
-		return -EBUSY;
+	ct82c710_device = platform_device_register_simple("ct82c710", -1, &ct82c710_iores, 1);
+	if (IS_ERR(ct82c710_device))
+		return PTR_ERR(ct82c710_device);
 
-	sprintf(ct82c710_phys, "isa%04x/serio0", ct82c710_data);
+	if (!(ct82c710_port = ct82c710_allocate_port())) {
+		platform_device_unregister(ct82c710_device);
+		return -ENOMEM;
+	}
 
-	serio_register_port(&ct82c710_port);
+	serio_register_port(ct82c710_port);
 
-	printk(KERN_INFO "serio: C&T 82c710 mouse port at %#x irq %d\n",
-		ct82c710_data, CT82C710_IRQ);
+	printk(KERN_INFO "serio: C&T 82c710 mouse port at %#lx irq %d\n",
+		CT82C710_DATA, CT82C710_IRQ);
 
 	return 0;
 }
 
 void __exit ct82c710_exit(void)
 {
-	serio_unregister_port(&ct82c710_port);
-	release_region(ct82c710_data, 2);
+	serio_unregister_port(ct82c710_port);
+	platform_device_unregister(ct82c710_device);
 }
 
 module_init(ct82c710_init);

drivers/input/serio/gscps2.c

@@ -91,7 +91,7 @@ static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs);
 struct gscps2port {
 	struct list_head node;
 	struct parisc_device *padev;
-	struct serio port;
+	struct serio *port;
 	spinlock_t lock;
 	char *addr;
 	u8 act, append; /* position in buffer[] */
@@ -100,7 +100,6 @@ struct gscps2port {
 		u8 str;
 	} buffer[BUFFER_SIZE+1];
 	int id;
-	char name[32];
 };
 
 /*
@@ -272,7 +271,7 @@ static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
 	    rxflags =	((status & GSC_STAT_TERR) ? SERIO_TIMEOUT : 0 ) |
 			((status & GSC_STAT_PERR) ? SERIO_PARITY  : 0 );
 
-	    serio_interrupt(&ps2port->port, data, rxflags, regs);
+	    serio_interrupt(ps2port->port, data, rxflags, regs);
 
 	  } /* while() */
 
@@ -288,7 +287,7 @@ static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
 
 static int gscps2_write(struct serio *port, unsigned char data)
 {
-	struct gscps2port *ps2port = port->driver;
+	struct gscps2port *ps2port = port->port_data;
 
 	if (!gscps2_writeb_output(ps2port, data)) {
 		printk(KERN_DEBUG PFX "sending byte %#x failed.\n", data);
@@ -304,7 +303,7 @@ static int gscps2_write(struct serio *port, unsigned char data)
 
 static int gscps2_open(struct serio *port)
 {
-	struct gscps2port *ps2port = port->driver;
+	struct gscps2port *ps2port = port->port_data;
 
 	gscps2_reset(ps2port);
 
@@ -319,7 +318,7 @@ static int gscps2_open(struct serio *port)
 
 static void gscps2_close(struct serio *port)
 {
-	struct gscps2port *ps2port = port->driver;
+	struct gscps2port *ps2port = port->port_data;
 	gscps2_enable(ps2port, DISABLE);
 }
 
@@ -343,7 +342,8 @@ static struct serio gscps2_serio_port =
 
 static int __init gscps2_probe(struct parisc_device *dev)
 {
-        struct gscps2port *ps2port;
+	struct gscps2port *ps2port;
+	struct serio *serio;
 	unsigned long hpa = dev->hpa;
 	int ret;
 
@@ -355,34 +355,45 @@ static int __init gscps2_probe(struct parisc_device *dev)
 		hpa += GSC_DINO_OFFSET;
 
 	ps2port = kmalloc(sizeof(struct gscps2port), GFP_KERNEL);
-	if (!ps2port)
-		return -ENOMEM;
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!ps2port || !serio) {
+		ret = -ENOMEM;
+		goto fail_nomem;
+	}
 
 	dev_set_drvdata(&dev->dev, ps2port);
 
 	memset(ps2port, 0, sizeof(struct gscps2port));
+	memset(serio, 0, sizeof(struct serio));
+	ps2port->port = serio;
 	ps2port->padev = dev;
 	ps2port->addr = ioremap(hpa, GSC_STATUS + 4);
 	spin_lock_init(&ps2port->lock);
 
 	gscps2_reset(ps2port);
-	ps2port->id = readb(ps2port->addr+GSC_ID) & 0x0f;
-	snprintf(ps2port->name, sizeof(ps2port->name)-1, "%s %s",
-		gscps2_serio_port.name,
-		(ps2port->id == GSC_ID_KEYBOARD) ? "keyboard" : "mouse" );
-
-	memcpy(&ps2port->port, &gscps2_serio_port, sizeof(gscps2_serio_port));
-	ps2port->port.driver = ps2port;
-	ps2port->port.name = ps2port->name;
-	ps2port->port.phys = dev->dev.bus_id;
+	ps2port->id = readb(ps2port->addr + GSC_ID) & 0x0f;
+
+	snprintf(serio->name, sizeof(serio->name), "GSC PS/2 %s",
+		 (ps2port->id == GSC_ID_KEYBOARD) ? "keyboard" : "mouse");
+	strlcpy(serio->phys, dev->dev.bus_id, sizeof(serio->phys));
+	serio->idbus		= BUS_GSC;
+	serio->idvendor		= PCI_VENDOR_ID_HP;
+	serio->idproduct	= 0x0001;
+	serio->idversion	= 0x0010;
+	serio->type		= SERIO_8042;
+	serio->write		= gscps2_write;
+	serio->open		= gscps2_open;
+	serio->close		= gscps2_close;
+	serio->port_data	= ps2port;
+	serio->dev.parent	= &dev->dev;
 
 	list_add_tail(&ps2port->node, &ps2port_list);
 
 	ret = -EBUSY;
-	if (request_irq(dev->irq, gscps2_interrupt, SA_SHIRQ, ps2port->name, ps2port))
+	if (request_irq(dev->irq, gscps2_interrupt, SA_SHIRQ, ps2port->port->name, ps2port))
 		goto fail_miserably;
 
-	if ( (ps2port->id != GSC_ID_KEYBOARD) && (ps2port->id != GSC_ID_MOUSE) ) {
+	if (ps2port->id != GSC_ID_KEYBOARD && ps2port->id != GSC_ID_MOUSE) {
 		printk(KERN_WARNING PFX "Unsupported PS/2 port at 0x%08lx (id=%d) ignored\n",
 				hpa, ps2port->id);
 		ret = -ENODEV;
@@ -395,12 +406,12 @@ static int __init gscps2_probe(struct parisc_device *dev)
 #endif
 
 	printk(KERN_INFO "serio: %s port at 0x%p irq %d @ %s\n",
-		ps2port->name,
+		ps2port->port->name,
 		ps2port->addr,
 		ps2port->padev->irq,
-		ps2port->port.phys);
+		ps2port->port->phys);
 
-	serio_register_port(&ps2port->port);
+	serio_register_port(ps2port->port);
 
 	return 0;
 
@@ -411,7 +422,10 @@ static int __init gscps2_probe(struct parisc_device *dev)
 	list_del(&ps2port->node);
 	iounmap(ps2port->addr);
 	release_mem_region(dev->hpa, GSC_STATUS + 4);
+
+fail_nomem:
 	kfree(ps2port);
+	kfree(serio);
 	return ret;
 }
 
@@ -424,7 +438,7 @@ static int __devexit gscps2_remove(struct parisc_device *dev)
 {
 	struct gscps2port *ps2port = dev_get_drvdata(&dev->dev);
 
-	serio_unregister_port(&ps2port->port);
+	serio_unregister_port(ps2port->port);
 	free_irq(dev->irq, ps2port);
 	gscps2_flush(ps2port);
 	list_del(&ps2port->node);

drivers/input/serio/i8042-io.h

@@ -65,6 +65,31 @@ static inline void i8042_write_command(int val)
 	return;
 }
 
+#if defined(__i386__)
+
+#include <linux/dmi.h>
+
+static struct dmi_system_id __initdata i8042_dmi_table[] = {
+	{
+		.ident = "Compaq Proliant 8500",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
+			DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
+		},
+	},
+	{
+		.ident = "Compaq Proliant DL760",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
+			DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
+		},
+	},
+	{ }
+};
+#endif
+
 static inline int i8042_platform_init(void)
 {
 /*
@@ -79,6 +104,12 @@ static inline int i8042_platform_init(void)
 #if !defined(__i386__) && !defined(__x86_64__)
         i8042_reset = 1;
 #endif
+
+#if defined(__i386__)
+	if (dmi_check_system(i8042_dmi_table))
+		i8042_noloop = 1;
+#endif
+
 	return 0;
 }
 

drivers/input/serio/i8042.c

 /*
  *  i8042 keyboard and mouse controller driver for Linux
  *
- *  Copyright (c) 1999-2002 Vojtech Pavlik
+ *  Copyright (c) 1999-2004 Vojtech Pavlik
  */
 
 /*
@@ -21,6 +21,7 @@
 #include <linux/sysdev.h>
 #include <linux/pm.h>
 #include <linux/serio.h>
+#include <linux/err.h>
 
 #include <asm/io.h>
 
@@ -52,6 +53,10 @@ static unsigned int i8042_dumbkbd;
 module_param_named(dumbkbd, i8042_dumbkbd, bool, 0);
 MODULE_PARM_DESC(dumbkbd, "Pretend that controller can only read data from keyboard");
 
+static unsigned int i8042_noloop;
+module_param_named(noloop, i8042_noloop, bool, 0);
+MODULE_PARM_DESC(dumbkbd, "Disable the AUX Loopback command while probing for the AUX port");
+
 __obsolete_setup("i8042_noaux");
 __obsolete_setup("i8042_nomux");
 __obsolete_setup("i8042_unlock");
@@ -70,19 +75,35 @@ struct i8042_values {
 	unsigned char irqen;
 	unsigned char exists;
 	signed char mux;
-	unsigned char *name;
-	unsigned char *phys;
+	char name[8];
+};
+
+static struct i8042_values i8042_kbd_values = {
+	.disable	= I8042_CTR_KBDDIS,
+	.irqen 		= I8042_CTR_KBDINT,
+	.mux		= -1,
+	.name		= "KBD",
+};
+
+static struct i8042_values i8042_aux_values = {
+	.disable	= I8042_CTR_AUXDIS,
+	.irqen		= I8042_CTR_AUXINT,
+	.mux		= -1,
+	.name		= "AUX",
 };
 
-static struct serio i8042_kbd_port;
-static struct serio i8042_aux_port;
+static struct i8042_values i8042_mux_values[I8042_NUM_MUX_PORTS];
+
+static struct serio *i8042_kbd_port;
+static struct serio *i8042_aux_port;
+static struct serio *i8042_mux_port[I8042_NUM_MUX_PORTS];
 static unsigned char i8042_initial_ctr;
 static unsigned char i8042_ctr;
 static unsigned char i8042_mux_open;
 static unsigned char i8042_mux_present;
-static unsigned char i8042_sysdev_initialized;
 static struct pm_dev *i8042_pm_dev;
-struct timer_list i8042_timer;
+static struct timer_list i8042_timer;
+static struct platform_device *i8042_platform_device;
 
 /*
  * Shared IRQ's require a device pointer, but this driver doesn't support
@@ -95,6 +116,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 /*
  * The i8042_wait_read() and i8042_wait_write functions wait for the i8042 to
  * be ready for reading values from it / writing values to it.
+ * Called always with i8042_lock held.
  */
 
 static int i8042_wait_read(void)
@@ -131,6 +153,7 @@ static int i8042_flush(void)
 	spin_lock_irqsave(&i8042_lock, flags);
 
 	while ((i8042_read_status() & I8042_STR_OBF) && (i++ < I8042_BUFFER_SIZE)) {
+		udelay(50);
 		data = i8042_read_data();
 		dbg("%02x <- i8042 (flush, %s)", data,
 			i8042_read_status() & I8042_STR_AUXDATA ? "aux" : "kbd");
@@ -154,6 +177,9 @@ static int i8042_command(unsigned char *param, int command)
 	unsigned long flags;
 	int retval = 0, i = 0;
 
+	if (i8042_noloop && command == I8042_CMD_AUX_LOOP)
+		return -1;
+
 	spin_lock_irqsave(&i8042_lock, flags);
 
 	retval = i8042_wait_write();
@@ -214,7 +240,7 @@ static int i8042_kbd_write(struct serio *port, unsigned char c)
 
 static int i8042_aux_write(struct serio *port, unsigned char c)
 {
-	struct i8042_values *values = port->driver;
+	struct i8042_values *values = port->port_data;
 	int retval;
 
 /*
@@ -242,7 +268,7 @@ static int i8042_aux_write(struct serio *port, unsigned char c)
 
 static int i8042_activate_port(struct serio *port)
 {
-	struct i8042_values *values = port->driver;
+	struct i8042_values *values = port->port_data;
 
 	i8042_flush();
 
@@ -270,7 +296,7 @@ static int i8042_activate_port(struct serio *port)
 
 static int i8042_open(struct serio *port)
 {
-	struct i8042_values *values = port->driver;
+	struct i8042_values *values = port->port_data;
 
 	if (values->mux != -1)
 		if (i8042_mux_open++)
@@ -309,7 +335,7 @@ static int i8042_open(struct serio *port)
 
 static void i8042_close(struct serio *port)
 {
-	struct i8042_values *values = port->driver;
+	struct i8042_values *values = port->port_data;
 
 	if (values->mux != -1)
 		if (--i8042_mux_open)
@@ -327,52 +353,6 @@ static void i8042_close(struct serio *port)
 	i8042_flush();
 }
 
-/*
- * Structures for registering the devices in the serio.c module.
- */
-
-static struct i8042_values i8042_kbd_values = {
-	.irqen =	I8042_CTR_KBDINT,
-	.disable =	I8042_CTR_KBDDIS,
-	.name =		"KBD",
-	.mux =		-1,
-};
-
-static struct serio i8042_kbd_port =
-{
-	.type =		SERIO_8042_XL,
-	.write =	i8042_kbd_write,
-	.open =		i8042_open,
-	.close =	i8042_close,
-	.driver =	&i8042_kbd_values,
-	.name =		"i8042 Kbd Port",
-	.phys =		I8042_KBD_PHYS_DESC,
-};
-
-static struct i8042_values i8042_aux_values = {
-	.irqen =	I8042_CTR_AUXINT,
-	.disable =	I8042_CTR_AUXDIS,
-	.name =		"AUX",
-	.mux =		-1,
-};
-
-static struct serio i8042_aux_port =
-{
-	.type =		SERIO_8042,
-	.write =	i8042_aux_write,
-	.open =		i8042_open,
-	.close =	i8042_close,
-	.driver =	&i8042_aux_values,
-	.name =		"i8042 Aux Port",
-	.phys =		I8042_AUX_PHYS_DESC,
-};
-
-static struct i8042_values i8042_mux_values[4];
-static struct serio i8042_mux_port[4];
-static char i8042_mux_names[4][32];
-static char i8042_mux_short[4][16];
-static char i8042_mux_phys[4][32];
-
 /*
  * i8042_interrupt() is the most important function in this driver -
  * it handles the interrupts from the i8042, and sends incoming bytes
@@ -384,6 +364,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	unsigned long flags;
 	unsigned char str, data = 0;
 	unsigned int dfl;
+	unsigned int aux_idx;
 	int ret;
 
 	mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
@@ -400,44 +381,67 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		goto out;
 	}
 
-	dfl = ((str & I8042_STR_PARITY) ? SERIO_PARITY : 0) |
-	      ((str & I8042_STR_TIMEOUT) ? SERIO_TIMEOUT : 0);
-
-	if (i8042_mux_values[0].exists && (str & I8042_STR_AUXDATA)) {
+	if (i8042_mux_present && (str & I8042_STR_AUXDATA)) {
+		static unsigned long last_transmit;
+		static unsigned char last_str;
 
+		dfl = 0;
 		if (str & I8042_STR_MUXERR) {
+			dbg("MUX error, status is %02x, data is %02x", str, data);
 			switch (data) {
+				default:
+/*
+ * When MUXERR condition is signalled the data register can only contain
+ * 0xfd, 0xfe or 0xff if implementation follows the spec. Unfortunately
+ * it is not always the case. Some KBC just get confused which port the
+ * data came from and signal error leaving the data intact. They _do not_
+ * revert to legacy mode (actually I've never seen KBC reverting to legacy
+ * mode yet, when we see one we'll add proper handling).
+ * Anyway, we will assume that the data came from the same serio last byte
+ * was transmitted (if transmission happened not too long ago).
+ */
+					if (time_before(jiffies, last_transmit + HZ/10)) {
+						str = last_str;
+						break;
+					}
+					/* fall through - report timeout */
 				case 0xfd:
-				case 0xfe: dfl = SERIO_TIMEOUT; break;
-				case 0xff: dfl = SERIO_PARITY; break;
+				case 0xfe: dfl = SERIO_TIMEOUT; data = 0xfe; break;
+				case 0xff: dfl = SERIO_PARITY;  data = 0xfe; break;
 			}
-			data = 0xfe;
-		} else dfl = 0;
+		}
+
+		aux_idx = (str >> 6) & 3;
 
 		dbg("%02x <- i8042 (interrupt, aux%d, %d%s%s)",
-			data, (str >> 6), irq,
+			data, aux_idx, irq,
 			dfl & SERIO_PARITY ? ", bad parity" : "",
 			dfl & SERIO_TIMEOUT ? ", timeout" : "");
 
-		serio_interrupt(i8042_mux_port + ((str >> 6) & 3), data, dfl, regs);
+		if (likely(i8042_mux_values[aux_idx].exists))
+			serio_interrupt(i8042_mux_port[aux_idx], data, dfl, regs);
 
+		last_str = str;
+		last_transmit = jiffies;
 		goto irq_ret;
 	}
 
+	dfl = ((str & I8042_STR_PARITY) ? SERIO_PARITY : 0) |
+	      ((str & I8042_STR_TIMEOUT) ? SERIO_TIMEOUT : 0);
+
 	dbg("%02x <- i8042 (interrupt, %s, %d%s%s)",
 		data, (str & I8042_STR_AUXDATA) ? "aux" : "kbd", irq,
 		dfl & SERIO_PARITY ? ", bad parity" : "",
 		dfl & SERIO_TIMEOUT ? ", timeout" : "");
 
-	if (i8042_aux_values.exists && (str & I8042_STR_AUXDATA)) {
-		serio_interrupt(&i8042_aux_port, data, dfl, regs);
-		goto irq_ret;
-	}
-
-	if (!i8042_kbd_values.exists)
-		goto irq_ret;
 
-	serio_interrupt(&i8042_kbd_port, data, dfl, regs);
+	if (str & I8042_STR_AUXDATA) {
+		if (likely(i8042_aux_values.exists))
+			serio_interrupt(i8042_aux_port, data, dfl, regs);
+	} else {
+		if (likely(i8042_kbd_values.exists))
+			serio_interrupt(i8042_kbd_port, data, dfl, regs);
+	}
 
 irq_ret:
 	ret = 1;
@@ -474,17 +478,8 @@ 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) {
-
-/*
- * 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);
+	if (i8042_command(&param, I8042_CMD_AUX_LOOP) || param == 0x5b)
 		return -1;
-	}
 
 	if (mux_version)
 		*mux_version = ~param;
@@ -639,8 +634,10 @@ static int __init i8042_check_aux(struct i8042_values *values)
  * registers it, and reports to the user.
  */
 
-static int __init i8042_port_register(struct i8042_values *values, struct serio *port)
+static int __init i8042_port_register(struct serio *port)
 {
+	struct i8042_values *values = port->port_data;
+
 	values->exists = 1;
 
 	i8042_ctr &= ~values->disable;
@@ -677,6 +674,7 @@ static void i8042_timer_func(unsigned long data)
 
 static int i8042_controller_init(void)
 {
+	unsigned long flags;
 
 /*
  * Test the i8042. We need to know if it thinks it's working correctly
@@ -723,12 +721,14 @@ static int i8042_controller_init(void)
  * Handle keylock.
  */
 
+	spin_lock_irqsave(&i8042_lock, flags);
 	if (~i8042_read_status() & I8042_STR_KEYLOCK) {
 		if (i8042_unlock)
 			i8042_ctr |= I8042_CTR_IGNKEYLOCK;
 		 else
 			printk(KERN_WARNING "i8042.c: Warning: Keylock active.\n");
 	}
+	spin_unlock_irqrestore(&i8042_lock, flags);
 
 /*
  * If the chip is configured into nontranslated mode by the BIOS, don't
@@ -745,10 +745,8 @@ static int i8042_controller_init(void)
  * BIOSes.
  */
 
-	if (i8042_direct) {
+	if (i8042_direct)
 		i8042_ctr &= ~I8042_CTR_XLATE;
-		i8042_kbd_port.type = SERIO_8042;
-	}
 
 /*
  * Write CTR back.
@@ -802,14 +800,14 @@ void i8042_controller_cleanup(void)
  */
 
 	if (i8042_kbd_values.exists)
-		serio_cleanup(&i8042_kbd_port);
+		serio_cleanup(i8042_kbd_port);
 
 	if (i8042_aux_values.exists)
-		serio_cleanup(&i8042_aux_port);
+		serio_cleanup(i8042_aux_port);
 
-	for (i = 0; i < 4; i++)
+	for (i = 0; i < I8042_NUM_MUX_PORTS; i++)
 		if (i8042_mux_values[i].exists)
-			serio_cleanup(i8042_mux_port + i);
+			serio_cleanup(i8042_mux_port[i]);
 
 	i8042_controller_reset();
 }
@@ -851,15 +849,15 @@ static int i8042_controller_resume(void)
  * Reconnect anything that was connected to the ports.
  */
 
-	if (i8042_kbd_values.exists && i8042_activate_port(&i8042_kbd_port) == 0)
-		serio_reconnect(&i8042_kbd_port);
+	if (i8042_kbd_values.exists && i8042_activate_port(i8042_kbd_port) == 0)
+		serio_reconnect(i8042_kbd_port);
 
-	if (i8042_aux_values.exists && i8042_activate_port(&i8042_aux_port) == 0)
-		serio_reconnect(&i8042_aux_port);
+	if (i8042_aux_values.exists && i8042_activate_port(i8042_aux_port) == 0)
+		serio_reconnect(i8042_aux_port);
 
-	for (i = 0; i < 4; i++)
-		if (i8042_mux_values[i].exists && i8042_activate_port(i8042_mux_port + i) == 0)
-			serio_reconnect(i8042_mux_port + i);
+	for (i = 0; i < I8042_NUM_MUX_PORTS; i++)
+		if (i8042_mux_values[i].exists && i8042_activate_port(i8042_mux_port[i]) == 0)
+			serio_reconnect(i8042_mux_port[i]);
 /*
  * Restart timer (for polling "stuck" data)
  */
@@ -882,7 +880,7 @@ static int i8042_notify_sys(struct notifier_block *this, unsigned long code,
         return NOTIFY_DONE;
 }
 
-static struct notifier_block i8042_notifier=
+static struct notifier_block i8042_notifier =
 {
         i8042_notify_sys,
         NULL,
@@ -892,25 +890,27 @@ static struct notifier_block i8042_notifier=
 /*
  * Suspend/resume handlers for the new PM scheme (driver model)
  */
-static int i8042_suspend(struct sys_device *dev, u32 state)
+static int i8042_suspend(struct device *dev, u32 state, u32 level)
 {
-	return i8042_controller_suspend();
+	return level == SUSPEND_DISABLE ? i8042_controller_suspend() : 0;
 }
 
-static int i8042_resume(struct sys_device *dev)
+static int i8042_resume(struct device *dev, u32 level)
 {
-	return i8042_controller_resume();
+	return level == RESUME_ENABLE ? i8042_controller_resume() : 0;
 }
 
-static struct sysdev_class kbc_sysclass = {
-	set_kset_name("i8042"),
-	.suspend = i8042_suspend,
-	.resume = i8042_resume,
-};
+static void i8042_shutdown(struct device *dev)
+{
+	i8042_controller_cleanup();
+}
 
-static struct sys_device device_i8042 = {
-       .id     = 0,
-       .cls    = &kbc_sysclass,
+static struct device_driver i8042_driver = {
+	.name		= "i8042",
+	.bus		= &platform_bus_type,
+	.suspend	= i8042_suspend,
+	.resume		= i8042_resume,
+	.shutdown	= i8042_shutdown,
 };
 
 /*
@@ -929,23 +929,75 @@ static int i8042_pm_callback(struct pm_dev *dev, pm_request_t request, void *dum
 	return 0;
 }
 
-static void __init i8042_init_mux_values(struct i8042_values *values, struct serio *port, int index)
+static struct serio * __init i8042_allocate_kbd_port(void)
+{
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(struct serio));
+		serio->type		= i8042_direct ? SERIO_8042 : SERIO_8042_XL,
+		serio->write		= i8042_dumbkbd ? NULL : i8042_kbd_write,
+		serio->open		= i8042_open,
+		serio->close		= i8042_close,
+		serio->port_data	= &i8042_kbd_values,
+		serio->dev.parent	= &i8042_platform_device->dev;
+		strlcpy(serio->name, "i8042 Kbd Port", sizeof(serio->name));
+		strlcpy(serio->phys, I8042_KBD_PHYS_DESC, sizeof(serio->phys));
+	}
+
+	return serio;
+}
+
+static struct serio * __init i8042_allocate_aux_port(void)
 {
-	memcpy(port, &i8042_aux_port, sizeof(struct serio));
-	memcpy(values, &i8042_aux_values, sizeof(struct i8042_values));
-	sprintf(i8042_mux_names[index], "i8042 Aux-%d Port", index);
-	sprintf(i8042_mux_phys[index], I8042_MUX_PHYS_DESC, index + 1);
-	sprintf(i8042_mux_short[index], "AUX%d", index);
-	port->name = i8042_mux_names[index];
-	port->phys = i8042_mux_phys[index];
-	port->driver = values;
-	values->name = i8042_mux_short[index];
-	values->mux = index;
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(struct serio));
+		serio->type		= SERIO_8042;
+		serio->write		= i8042_aux_write;
+		serio->open		= i8042_open;
+		serio->close		= i8042_close;
+		serio->port_data	= &i8042_aux_values,
+		serio->dev.parent	= &i8042_platform_device->dev;
+		strlcpy(serio->name, "i8042 Aux Port", sizeof(serio->name));
+		strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+	}
+
+	return serio;
+}
+
+static struct serio * __init i8042_allocate_mux_port(int index)
+{
+	struct serio *serio;
+	struct i8042_values *values = &i8042_mux_values[index];
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		*values = i8042_aux_values;
+		snprintf(values->name, sizeof(values->name), "AUX%d", index);
+		values->mux = index;
+
+		memset(serio, 0, sizeof(struct serio));
+		serio->type		= SERIO_8042;
+		serio->write		= i8042_aux_write;
+		serio->open		= i8042_open;
+		serio->close		= i8042_close;
+		serio->port_data	= values;
+		serio->dev.parent	= &i8042_platform_device->dev;
+		snprintf(serio->name, sizeof(serio->name), "i8042 Aux-%d Port", index);
+		snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, index + 1);
+	}
+
+	return serio;
 }
 
 int __init i8042_init(void)
 {
 	int i;
+	int err;
 
 	dbg_init();
 
@@ -961,30 +1013,36 @@ int __init i8042_init(void)
 	if (i8042_controller_init())
 		return -ENODEV;
 
-	if (i8042_dumbkbd)
-		i8042_kbd_port.write = NULL;
+	err = driver_register(&i8042_driver);
+	if (err)
+		return err;
+
+	i8042_platform_device = platform_device_register_simple("i8042", -1, NULL, 0);
+	if (IS_ERR(i8042_platform_device)) {
+		driver_unregister(&i8042_driver);
+		return PTR_ERR(i8042_platform_device);
+	}
 
 	if (!i8042_noaux && !i8042_check_aux(&i8042_aux_values)) {
 		if (!i8042_nomux && !i8042_check_mux(&i8042_aux_values))
-			for (i = 0; i < 4; i++) {
-				i8042_init_mux_values(i8042_mux_values + i, i8042_mux_port + i, i);
-				i8042_port_register(i8042_mux_values + i, i8042_mux_port + i);
+			for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+				i8042_mux_port[i] = i8042_allocate_mux_port(i);
+				if (i8042_mux_port[i])
+					i8042_port_register(i8042_mux_port[i]);
 			}
-		else
-			i8042_port_register(&i8042_aux_values, &i8042_aux_port);
+		else {
+			i8042_aux_port = i8042_allocate_aux_port();
+			if (i8042_aux_port)
+				i8042_port_register(i8042_aux_port);
+		}
 	}
 
-	i8042_port_register(&i8042_kbd_values, &i8042_kbd_port);
+	i8042_kbd_port = i8042_allocate_kbd_port();
+	if (i8042_kbd_port)
+		i8042_port_register(i8042_kbd_port);
 
 	mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
 
-        if (sysdev_class_register(&kbc_sysclass) == 0) {
-                if (sysdev_register(&device_i8042) == 0)
-			i8042_sysdev_initialized = 1;
-		else
-			sysdev_class_unregister(&kbc_sysclass);
-        }
-
 	i8042_pm_dev = pm_register(PM_SYS_DEV, PM_SYS_UNKNOWN, i8042_pm_callback);
 
 	register_reboot_notifier(&i8042_notifier);
@@ -1001,24 +1059,23 @@ void __exit i8042_exit(void)
 	if (i8042_pm_dev)
 		pm_unregister(i8042_pm_dev);
 
-	if (i8042_sysdev_initialized) {
-		sysdev_unregister(&device_i8042);
-		sysdev_class_unregister(&kbc_sysclass);
-	}
-
 	i8042_controller_cleanup();
 
 	if (i8042_kbd_values.exists)
-		serio_unregister_port(&i8042_kbd_port);
+		serio_unregister_port(i8042_kbd_port);
 
 	if (i8042_aux_values.exists)
-		serio_unregister_port(&i8042_aux_port);
+		serio_unregister_port(i8042_aux_port);
 
-	for (i = 0; i < 4; i++)
+	for (i = 0; i < I8042_NUM_MUX_PORTS; i++)
 		if (i8042_mux_values[i].exists)
-			serio_unregister_port(i8042_mux_port + i);
+			serio_unregister_port(i8042_mux_port[i]);
+
 	del_timer_sync(&i8042_timer);
 
+	platform_device_unregister(i8042_platform_device);
+	driver_unregister(&i8042_driver);
+
 	i8042_platform_exit();
 }
 

drivers/input/serio/i8042.h

@@ -103,6 +103,13 @@
 
 #define I8042_BUFFER_SIZE	32
 
+/*
+ * Number of AUX ports on controllers supporting active multiplexing
+ * specification
+ */
+
+#define I8042_NUM_MUX_PORTS	4
+
 /*
  * Debug.
  */

drivers/input/serio/maceps2.c

@@ -17,6 +17,7 @@
 #include <linux/device.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/err.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -46,15 +47,18 @@ MODULE_LICENSE("GPL");
 #define PS2_CONTROL_RX_CLOCK_ENABLE  BIT(4) /* pause reception if set to 0 */
 #define PS2_CONTROL_RESET            BIT(5) /* reset */
 
-
 struct maceps2_data {
 	struct mace_ps2port *port;
 	int irq;
 };
 
+static struct maceps2_data port_data[2];
+static struct serio *maceps2_port[2];
+static struct platform_device *maceps2_device;
+
 static int maceps2_write(struct serio *dev, unsigned char val)
 {
-	struct mace_ps2port *port = ((struct maceps2_data *)dev->driver)->port;
+	struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
 	unsigned int timeout = MACE_PS2_TIMEOUT;
 
 	do {
@@ -68,11 +72,10 @@ static int maceps2_write(struct serio *dev, unsigned char val)
 	return -1;
 }
 
-static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
-				     struct pt_regs *regs)
+static irqreturn_t maceps2_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct serio *dev = dev_id;
-	struct mace_ps2port *port = ((struct maceps2_data *)dev->driver)->port;
+	struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
 	unsigned int byte;
 
 	if (mace_read(port->status) & PS2_STATUS_RX_FULL) {
@@ -85,7 +88,7 @@ static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
 
 static int maceps2_open(struct serio *dev)
 {
-	struct maceps2_data *data = (struct maceps2_data *)dev->driver;
+	struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
 
 	if (request_irq(data->irq, maceps2_interrupt, 0, "PS/2 port", dev)) {
 		printk(KERN_ERR "Could not allocate PS/2 IRQ\n");
@@ -106,7 +109,7 @@ static int maceps2_open(struct serio *dev)
 
 static void maceps2_close(struct serio *dev)
 {
-	struct maceps2_data *data = (struct maceps2_data *)dev->driver;
+	struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
 
 	mace_write(PS2_CONTROL_TX_CLOCK_DISABLE | PS2_CONTROL_RESET,
 		   data->port->control);
@@ -114,46 +117,59 @@ static void maceps2_close(struct serio *dev)
 	free_irq(data->irq, dev);
 }
 
-static struct maceps2_data port0_data, port1_data;
 
-static struct serio maceps2_port0 =
+static struct serio * __init maceps2_allocate_port(int idx)
 {
-	.type	= SERIO_8042,
-	.open	= maceps2_open,
-	.close	= maceps2_close,
-	.write	= maceps2_write,
-	.name	= "MACE PS/2 port0",
-	.phys	= "mace/serio0",
-	.driver = &port0_data,
-};
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(struct serio));
+		serio->type		= SERIO_8042;
+		serio->write		= maceps2_write;
+		serio->open		= maceps2_open;
+		serio->close		= maceps2_close;
+		snprintf(serio->name, sizeof(serio->name), "MACE PS/2 port%d", idx);
+		snprintf(serio->phys, sizeof(serio->phys), "mace/serio%d", idx);
+		serio->port_data	= &port_data[idx];
+		serio->dev.parent	= &maceps2_device->dev;
+	}
+
+	return serio;
+}
 
-static struct serio maceps2_port1 =
-{
-	.type	= SERIO_8042,
-	.open	= maceps2_open,
-	.close	= maceps2_close,
-	.write	= maceps2_write,
-	.name	= "MACE PS/2 port1",
-	.phys	= "mace/serio1",
-	.driver = &port1_data,
-};
 
 static int __init maceps2_init(void)
 {
-	port0_data.port = &mace->perif.ps2.keyb;
-	port0_data.irq  = MACEISA_KEYB_IRQ;
-	port1_data.port = &mace->perif.ps2.mouse;
-	port1_data.irq  = MACEISA_MOUSE_IRQ;
-	serio_register_port(&maceps2_port0);
-	serio_register_port(&maceps2_port1);
+	maceps2_device = platform_device_register_simple("maceps2", -1, NULL, 0);
+	if (IS_ERR(maceps2_device))
+		return PTR_ERR(maceps2_device);
+
+	port_data[0].port = &mace->perif.ps2.keyb;
+	port_data[0].irq  = MACEISA_KEYB_IRQ;
+	port_data[1].port = &mace->perif.ps2.mouse;
+	port_data[1].irq  = MACEISA_MOUSE_IRQ;
+
+	maceps2_port[0] = maceps2_allocate_port(0);
+	maceps2_port[1] = maceps2_allocate_port(1);
+	if (!maceps2_port[0] || !maceps2_port[1]) {
+		kfree(maceps2_port[0]);
+		kfree(maceps2_port[1]);
+		platform_device_unregister(maceps2_device);
+		return -ENOMEM;
+	}
+
+	serio_register_port(maceps2_port[0]);
+	serio_register_port(maceps2_port[1]);
 
 	return 0;
 }
 
 static void __exit maceps2_exit(void)
 {
-	serio_unregister_port(&maceps2_port0);
-	serio_unregister_port(&maceps2_port1);
+	serio_unregister_port(maceps2_port[0]);
+	serio_unregister_port(maceps2_port[1]);
+	platform_device_unregister(maceps2_device);
 }
 
 module_init(maceps2_init);

drivers/input/serio/parkbd.c

@@ -53,9 +53,7 @@ static int parkbd_writing;
 static unsigned long parkbd_start;
 
 static struct pardevice *parkbd_dev;
-
-static char parkbd_name[] = "PARKBD AT/XT keyboard adapter";
-static char parkbd_phys[32];
+static struct serio *parkbd_port;
 
 static int parkbd_readlines(void)
 {
@@ -86,13 +84,6 @@ static int parkbd_write(struct serio *port, unsigned char c)
 	return 0;
 }
 
-static struct serio parkbd_port =
-{
-	.write	= parkbd_write,
-	.name	= parkbd_name,
-	.phys	= parkbd_phys,
-};
-
 static void parkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 
@@ -125,7 +116,7 @@ static void parkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		parkbd_buffer |= (parkbd_readlines() >> 1) << parkbd_counter++;
 
 		if (parkbd_counter == parkbd_mode + 10)
-			serio_interrupt(&parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0, regs);
+			serio_interrupt(parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0, regs);
 	}
 
 	parkbd_last = jiffies;
@@ -163,16 +154,38 @@ static int parkbd_getport(void)
 	return 0;
 }
 
+static struct serio * __init parkbd_allocate_serio(void)
+{
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		serio->type = parkbd_mode;
+		serio->write = parkbd_write,
+		strlcpy(serio->name, "PARKBD AT/XT keyboard adapter", sizeof(serio->name));
+		snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", parkbd_dev->port->name);
+	}
+
+	return serio;
+}
 
 int __init parkbd_init(void)
 {
-	if (parkbd_getport()) return -1;
-	parkbd_writelines(3);
-	parkbd_port.type = parkbd_mode;
+	int err;
+
+	err = parkbd_getport();
+	if (err)
+		return err;
 
-	sprintf(parkbd_phys, "%s/serio0", parkbd_dev->port->name);
+	parkbd_port = parkbd_allocate_serio();
+	if (!parkbd_port) {
+		parport_release(parkbd_dev);
+		return -ENOMEM;
+	}
+
+	parkbd_writelines(3);
 
-	serio_register_port(&parkbd_port);
+	serio_register_port(parkbd_port);
 
 	printk(KERN_INFO "serio: PARKBD %s adapter on %s\n",
                         parkbd_mode ? "AT" : "XT", parkbd_dev->port->name);
@@ -183,7 +196,7 @@ int __init parkbd_init(void)
 void __exit parkbd_exit(void)
 {
 	parport_release(parkbd_dev);
-	serio_unregister_port(&parkbd_port);
+	serio_unregister_port(parkbd_port);
 	parport_unregister_device(parkbd_dev);
 }
 

drivers/input/serio/pcips2.c

@@ -38,14 +38,14 @@
 #define PS2_STAT_TXEMPTY	(1<<7)
 
 struct pcips2_data {
-	struct serio	io;
+	struct serio	*io;
 	unsigned int	base;
 	struct pci_dev	*dev;
 };
 
 static int pcips2_write(struct serio *io, unsigned char val)
 {
-	struct pcips2_data *ps2if = io->driver;
+	struct pcips2_data *ps2if = io->port_data;
 	unsigned int stat;
 
 	do {
@@ -80,7 +80,7 @@ static irqreturn_t pcips2_interrupt(int irq, void *devid, struct pt_regs *regs)
 		if (hweight8(scancode) & 1)
 			flag ^= SERIO_PARITY;
 
-		serio_interrupt(&ps2if->io, scancode, flag, regs);
+		serio_interrupt(ps2if->io, scancode, flag, regs);
 	} while (1);
 	return IRQ_RETVAL(handled);
 }
@@ -101,7 +101,7 @@ static void pcips2_flush_input(struct pcips2_data *ps2if)
 
 static int pcips2_open(struct serio *io)
 {
-	struct pcips2_data *ps2if = io->driver;
+	struct pcips2_data *ps2if = io->port_data;
 	int ret, val = 0;
 
 	outb(PS2_CTRL_ENABLE, ps2if->base);
@@ -119,7 +119,7 @@ static int pcips2_open(struct serio *io)
 
 static void pcips2_close(struct serio *io)
 {
-	struct pcips2_data *ps2if = io->driver;
+	struct pcips2_data *ps2if = io->port_data;
 
 	outb(0, ps2if->base);
 
@@ -129,46 +129,51 @@ static void pcips2_close(struct serio *io)
 static int __devinit pcips2_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	struct pcips2_data *ps2if;
+	struct serio *serio;
 	int ret;
 
 	ret = pci_enable_device(dev);
 	if (ret)
-		return ret;
+		goto out;
 
-	if (!request_region(pci_resource_start(dev, 0),
-			    pci_resource_len(dev, 0), "pcips2")) {
-		ret = -EBUSY;
+	ret = pci_request_regions(dev, "pcips2");
+	if (ret)
 		goto disable;
-	}
 
 	ps2if = kmalloc(sizeof(struct pcips2_data), GFP_KERNEL);
-	if (!ps2if) {
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!ps2if || !serio) {
 		ret = -ENOMEM;
 		goto release;
 	}
 
 	memset(ps2if, 0, sizeof(struct pcips2_data));
-
-	ps2if->io.type		= SERIO_8042;
-	ps2if->io.write		= pcips2_write;
-	ps2if->io.open		= pcips2_open;
-	ps2if->io.close		= pcips2_close;
-	ps2if->io.name		= pci_name(dev);
-	ps2if->io.phys		= dev->dev.bus_id;
-	ps2if->io.driver	= ps2if;
+	memset(serio, 0, sizeof(struct serio));
+
+	serio->type		= SERIO_8042;
+	serio->write		= pcips2_write;
+	serio->open		= pcips2_open;
+	serio->close		= pcips2_close;
+	strlcpy(serio->name, pci_name(dev), sizeof(serio->name));
+	strlcpy(serio->phys, dev->dev.bus_id, sizeof(serio->phys));
+	serio->port_data	= ps2if;
+	serio->dev.parent	= &dev->dev;
+	ps2if->io		= serio;
 	ps2if->dev		= dev;
 	ps2if->base		= pci_resource_start(dev, 0);
 
 	pci_set_drvdata(dev, ps2if);
 
-	serio_register_port(&ps2if->io);
+	serio_register_port(ps2if->io);
 	return 0;
 
  release:
-	release_region(pci_resource_start(dev, 0),
-		       pci_resource_len(dev, 0));
+	kfree(ps2if);
+	kfree(serio);
+	pci_release_regions(dev);
  disable:
 	pci_disable_device(dev);
+ out:
 	return ret;
 }
 
@@ -176,11 +181,10 @@ static void __devexit pcips2_remove(struct pci_dev *dev)
 {
 	struct pcips2_data *ps2if = pci_get_drvdata(dev);
 
-	serio_unregister_port(&ps2if->io);
-	release_region(pci_resource_start(dev, 0),
-		       pci_resource_len(dev, 0));
+	serio_unregister_port(ps2if->io);
 	pci_set_drvdata(dev, NULL);
 	kfree(ps2if);
+	pci_release_regions(dev);
 	pci_disable_device(dev);
 }
 

drivers/input/serio/q40kbd.c

@@ -35,6 +35,7 @@
 #include <linux/init.h>
 #include <linux/serio.h>
 #include <linux/interrupt.h>
+#include <linux/err.h>
 
 #include <asm/bitops.h>
 #include <asm/io.h>
@@ -47,43 +48,106 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("Q40 PS/2 keyboard controller driver");
 MODULE_LICENSE("GPL");
 
-static struct serio q40kbd_port =
-{
-	.type	= SERIO_8042,
-	.name	= "Q40 kbd port",
-	.phys	= "Q40",
-	.write	= NULL,
-};
-
-static irqreturn_t q40kbd_interrupt(int irq, void *dev_id,
-				    struct pt_regs *regs)
+spinlock_t q40kbd_lock = SPIN_LOCK_UNLOCKED;
+static struct serio *q40kbd_port;
+static struct platform_device *q40kbd_device;
+
+static irqreturn_t q40kbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&q40kbd_lock, flags);
+
 	if (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
-		serio_interrupt(&q40kbd_port, master_inb(KEYCODE_REG), 0, regs);
+		serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0, regs);
 
 	master_outb(-1, KEYBOARD_UNLOCK_REG);
+
+	spin_unlock_irqrestore(&q40kbd_lock, flags);
+
 	return IRQ_HANDLED;
 }
 
-static int __init q40kbd_init(void)
+/*
+ * q40kbd_flush() flushes all data that may be in the keyboard buffers
+ */
+
+static void q40kbd_flush(void)
+{
+ 	int maxread = 100;
+	unsigned long flags;
+
+	spin_lock_irqsave(&q40kbd_lock, flags);
+
+ 	while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
+ 		master_inb(KEYCODE_REG);
+
+	spin_unlock_irqrestore(&q40kbd_lock, flags);
+}
+
+/*
+ * q40kbd_open() is called when a port is open by the higher layer.
+ * It allocates the interrupt and enables in in the chip.
+ */
+
+static int q40kbd_open(struct serio *port)
 {
-	int maxread = 100;
+	q40kbd_flush();
 
+	if (request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL)) {
+		printk(KERN_ERR "q40kbd.c: Can't get irq %d.\n", Q40_IRQ_KEYBOARD);
+		return -1;
+	}
+
+ 	/* off we go */
+ 	master_outb(-1, KEYBOARD_UNLOCK_REG);
+ 	master_outb(1, KEY_IRQ_ENABLE_REG);
+
+ 	return 0;
+}
+
+static void q40kbd_close(struct serio *port)
+{
+	master_outb(0, KEY_IRQ_ENABLE_REG);
+	master_outb(-1, KEYBOARD_UNLOCK_REG);
+	free_irq(Q40_IRQ_KEYBOARD, NULL);
+
+	q40kbd_flush();
+}
+
+static struct serio * __init q40kbd_allocate_port(void)
+{
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(struct serio));
+		serio->type		= SERIO_8042;
+		serio->open		= q40kbd_open;
+		serio->close		= q40kbd_close;
+		serio->dev.parent	= &q40kbd_device->dev;
+		strlcpy(serio->name, "Q40 Kbd Port", sizeof(serio->name));
+		strlcpy(serio->phys, "Q40", sizeof(serio->phys));
+	}
+
+	return serio;
+}
+
+static int __init q40kbd_init(void)
+{
 	if (!MACH_IS_Q40)
 		return -EIO;
 
-	/* allocate the IRQ */
-	request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL);
-
-	/* flush any pending input */
-	while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
-		master_inb(KEYCODE_REG);
+	q40kbd_device = platform_device_register_simple("q40kbd", -1, NULL, 0);
+	if (IS_ERR(q40kbd_device))
+		return PTR_ERR(q40kbd_device);
 
-	/* off we go */
-	master_outb(-1,KEYBOARD_UNLOCK_REG);
-	master_outb(1,KEY_IRQ_ENABLE_REG);
+	if (!(q40kbd_port = q40kbd_allocate_port())) {
+		platform_device_unregister(q40kbd_device);
+		return -ENOMEM;
+	}
 
-	serio_register_port(&q40kbd_port);
+	serio_register_port(q40kbd_port);
 	printk(KERN_INFO "serio: Q40 kbd registered\n");
 
 	return 0;
@@ -91,11 +155,8 @@ static int __init q40kbd_init(void)
 
 static void __exit q40kbd_exit(void)
 {
-	master_outb(0,KEY_IRQ_ENABLE_REG);
-	master_outb(-1,KEYBOARD_UNLOCK_REG);
-
-	serio_unregister_port(&q40kbd_port);
-	free_irq(Q40_IRQ_KEYBOARD, NULL);
+	serio_unregister_port(q40kbd_port);
+	platform_device_unregister(q40kbd_device);
 }
 
 module_init(q40kbd_init);

drivers/input/serio/rpckbd.c

@@ -33,6 +33,7 @@
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/serio.h>
+#include <linux/err.h>
 
 #include <asm/irq.h>
 #include <asm/hardware.h>
@@ -44,6 +45,9 @@ MODULE_AUTHOR("Vojtech Pavlik, Russell King");
 MODULE_DESCRIPTION("Acorn RiscPC PS/2 keyboard controller driver");
 MODULE_LICENSE("GPL");
 
+static struct serio *rpckbd_port;
+static struct platform_device *rpckbd_device;
+
 static int rpckbd_write(struct serio *port, unsigned char val)
 {
 	while (!(iomd_readb(IOMD_KCTRL) & (1 << 7)))
@@ -101,25 +105,49 @@ static void rpckbd_close(struct serio *port)
 	free_irq(IRQ_KEYBOARDTX, port);
 }
 
-static struct serio rpckbd_port =
+/*
+ * Allocate and initialize serio structure for subsequent registration
+ * with serio core.
+ */
+
+static struct serio * __init rpckbd_allocate_port(void)
 {
-	.type	= SERIO_8042,
-	.open	= rpckbd_open,
-	.close	= rpckbd_close,
-	.write	= rpckbd_write,
-	.name	= "RiscPC PS/2 kbd port",
-	.phys	= "rpckbd/serio0",
-};
+	struct serio *serio;
+
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(struct serio));
+		serio->type		= SERIO_8042;
+		serio->write		= rpckbd_write;
+		serio->open		= rpckbd_open;
+		serio->close		= rpckbd_close;
+		serio->dev.parent	= &rpckbd_device->dev;
+		strlcpy(serio->name, "RiscPC PS/2 kbd port", sizeof(serio->name));
+		strlcpy(serio->phys, "rpckbd/serio0", sizeof(serio->phys));
+	}
+
+	return serio;
+}
 
 static int __init rpckbd_init(void)
 {
-	serio_register_port(&rpckbd_port);
+	rpckbd_device = platform_device_register_simple("rpckbd", -1, NULL, 0);
+	if (IS_ERR(rpckbd_device))
+		return PTR_ERR(rpckbd_device);
+
+	if (!(rpckbd_port = rpckbd_allocate_port())) {
+		platform_device_unregister(rpckbd_device);
+		return -ENOMEM;
+	}
+
+	serio_register_port(rpckbd_port);
 	return 0;
 }
 
 static void __exit rpckbd_exit(void)
 {
-	serio_unregister_port(&rpckbd_port);
+	serio_unregister_port(rpckbd_port);
+	platform_device_unregister(rpckbd_device);
 }
 
 module_init(rpckbd_init);

drivers/input/serio/sa1111ps2.c

@@ -26,7 +26,7 @@
 #include <asm/hardware/sa1111.h>
 
 struct ps2if {
-	struct serio		io;
+	struct serio		*io;
 	struct sa1111_dev	*dev;
 	unsigned long		base;
 	unsigned int		open;
@@ -59,7 +59,7 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
 		if (hweight8(scancode) & 1)
 			flag ^= SERIO_PARITY;
 
-		serio_interrupt(&ps2if->io, scancode, flag, regs);
+		serio_interrupt(ps2if->io, scancode, flag, regs);
 
 		status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
         }
@@ -95,7 +95,7 @@ static irqreturn_t ps2_txint(int irq, void *dev_id, struct pt_regs *regs)
  */
 static int ps2_write(struct serio *io, unsigned char val)
 {
-	struct ps2if *ps2if = io->driver;
+	struct ps2if *ps2if = io->port_data;
 	unsigned long flags;
 	unsigned int head;
 
@@ -122,7 +122,7 @@ static int ps2_write(struct serio *io, unsigned char val)
 
 static int ps2_open(struct serio *io)
 {
-	struct ps2if *ps2if = io->driver;
+	struct ps2if *ps2if = io->port_data;
 	int ret;
 
 	sa1111_enable_device(ps2if->dev);
@@ -154,7 +154,7 @@ static int ps2_open(struct serio *io)
 
 static void ps2_close(struct serio *io)
 {
-	struct ps2if *ps2if = io->driver;
+	struct ps2if *ps2if = io->port_data;
 
 	sa1111_writel(0, ps2if->base + SA1111_PS2CR);
 
@@ -232,22 +232,28 @@ static int __init ps2_test(struct ps2if *ps2if)
 static int ps2_probe(struct sa1111_dev *dev)
 {
 	struct ps2if *ps2if;
+	struct serio *serio;
 	int ret;
 
 	ps2if = kmalloc(sizeof(struct ps2if), GFP_KERNEL);
-	if (!ps2if) {
-		return -ENOMEM;
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!ps2if || !serio) {
+		ret = -ENOMEM;
+		goto free;
 	}
 
 	memset(ps2if, 0, sizeof(struct ps2if));
-
-	ps2if->io.type		= SERIO_8042;
-	ps2if->io.write		= ps2_write;
-	ps2if->io.open		= ps2_open;
-	ps2if->io.close		= ps2_close;
-	ps2if->io.name		= dev->dev.bus_id;
-	ps2if->io.phys		= dev->dev.bus_id;
-	ps2if->io.driver	= ps2if;
+	memset(serio, 0, sizeof(struct serio));
+
+	serio->type		= SERIO_8042;
+	serio->write		= ps2_write;
+	serio->open		= ps2_open;
+	serio->close		= ps2_close;
+	strlcpy(serio->name, dev->dev.bus_id, sizeof(serio->name));
+	strlcpy(serio->phys, dev->dev.bus_id, sizeof(serio->phys));
+	serio->port_data	= ps2if;
+	serio->dev.parent	= &dev->dev;
+	ps2if->io		= serio;
 	ps2if->dev		= dev;
 	sa1111_set_drvdata(dev, ps2if);
 
@@ -292,7 +298,7 @@ static int ps2_probe(struct sa1111_dev *dev)
 	ps2_clear_input(ps2if);
 
 	sa1111_disable_device(ps2if->dev);
-	serio_register_port(&ps2if->io);
+	serio_register_port(ps2if->io);
 	return 0;
 
  out:
@@ -302,6 +308,7 @@ static int ps2_probe(struct sa1111_dev *dev)
  free:
 	sa1111_set_drvdata(dev, NULL);
 	kfree(ps2if);
+	kfree(serio);
 	return ret;
 }
 
@@ -312,7 +319,7 @@ static int ps2_remove(struct sa1111_dev *dev)
 {
 	struct ps2if *ps2if = sa1111_get_drvdata(dev);
 
-	serio_unregister_port(&ps2if->io);
+	serio_unregister_port(ps2if->io);
 	release_mem_region(dev->res.start,
 			   dev->res.end - dev->res.start + 1);
 	sa1111_set_drvdata(dev, NULL);

drivers/input/serio/serio.c

-/*
- * $Id: serio.c,v 1.15 2002/01/22 21:12:03 vojtech Exp $
- *
- *  Copyright (c) 1999-2001 Vojtech Pavlik
- */
-
 /*
  *  The Serio abstraction module
+ *
+ *  Copyright (c) 1999-2004 Vojtech Pavlik
+ *  Copyright (c) 2004 Dmitry Torokhov
+ *  Copyright (c) 2003 Daniele Bellucci
  */
 
 /*
@@ -26,10 +24,6 @@
  * Should you need to contact me, the author, you can do so either by
  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
- *
- * Changes:
- * 20 Jul. 2003    Daniele Bellucci <bellucda@tiscali.it>
- *                 Minor cleanups.
  */
 
 #include <linux/stddef.h>
@@ -50,100 +44,178 @@ MODULE_LICENSE("GPL");
 EXPORT_SYMBOL(serio_interrupt);
 EXPORT_SYMBOL(serio_register_port);
 EXPORT_SYMBOL(serio_register_port_delayed);
-EXPORT_SYMBOL(__serio_register_port);
 EXPORT_SYMBOL(serio_unregister_port);
 EXPORT_SYMBOL(serio_unregister_port_delayed);
-EXPORT_SYMBOL(__serio_unregister_port);
-EXPORT_SYMBOL(serio_register_device);
-EXPORT_SYMBOL(serio_unregister_device);
+EXPORT_SYMBOL(serio_register_driver);
+EXPORT_SYMBOL(serio_unregister_driver);
 EXPORT_SYMBOL(serio_open);
 EXPORT_SYMBOL(serio_close);
 EXPORT_SYMBOL(serio_rescan);
 EXPORT_SYMBOL(serio_reconnect);
 
+static DECLARE_MUTEX(serio_sem);	/* protects serio_list and serio_diriver_list */
+static LIST_HEAD(serio_list);
+static LIST_HEAD(serio_driver_list);
+static unsigned int serio_no;
+
+struct bus_type serio_bus = {
+	.name =	"serio",
+};
+
+static void serio_find_driver(struct serio *serio);
+static void serio_create_port(struct serio *serio);
+static void serio_destroy_port(struct serio *serio);
+static void serio_connect_port(struct serio *serio, struct serio_driver *drv);
+static void serio_reconnect_port(struct serio *serio);
+static void serio_disconnect_port(struct serio *serio);
+
+static int serio_bind_driver(struct serio *serio, struct serio_driver *drv)
+{
+	get_driver(&drv->driver);
+
+	drv->connect(serio, drv);
+	if (serio->drv) {
+		down_write(&serio_bus.subsys.rwsem);
+		serio->dev.driver = &drv->driver;
+		device_bind_driver(&serio->dev);
+		up_write(&serio_bus.subsys.rwsem);
+		return 1;
+	}
+
+	put_driver(&drv->driver);
+	return 0;
+}
+
+/* serio_find_driver() must be called with serio_sem down.  */
+static void serio_find_driver(struct serio *serio)
+{
+	struct serio_driver *drv;
+
+	list_for_each_entry(drv, &serio_driver_list, node)
+		if (!drv->manual_bind)
+			if (serio_bind_driver(serio, drv))
+				break;
+}
+
+/*
+ * Serio event processing.
+ */
+
 struct serio_event {
 	int type;
 	struct serio *serio;
 	struct list_head node;
 };
 
-static DECLARE_MUTEX(serio_sem);
-static LIST_HEAD(serio_list);
-static LIST_HEAD(serio_dev_list);
+enum serio_event_type {
+	SERIO_RESCAN,
+	SERIO_RECONNECT,
+	SERIO_REGISTER_PORT,
+	SERIO_UNREGISTER_PORT,
+};
+
+static spinlock_t serio_event_lock = SPIN_LOCK_UNLOCKED;	/* protects serio_event_list */
 static LIST_HEAD(serio_event_list);
+static DECLARE_WAIT_QUEUE_HEAD(serio_wait);
+static DECLARE_COMPLETION(serio_exited);
 static int serio_pid;
 
-static void serio_find_dev(struct serio *serio)
+static void serio_queue_event(struct serio *serio, int event_type)
 {
-	struct serio_dev *dev;
+	unsigned long flags;
+	struct serio_event *event;
 
-	list_for_each_entry(dev, &serio_dev_list, node) {
-		if (serio->dev)
-			break;
-		if (dev->connect)
-			dev->connect(serio, dev);
-	}
-}
+	spin_lock_irqsave(&serio_event_lock, flags);
 
-#define SERIO_RESCAN		1
-#define SERIO_RECONNECT		2
-#define SERIO_REGISTER_PORT	3
-#define SERIO_UNREGISTER_PORT	4
+	if ((event = kmalloc(sizeof(struct serio_event), GFP_ATOMIC))) {
+		event->type = event_type;
+		event->serio = serio;
 
-static DECLARE_WAIT_QUEUE_HEAD(serio_wait);
-static DECLARE_COMPLETION(serio_exited);
+		list_add_tail(&event->node, &serio_event_list);
+		wake_up(&serio_wait);
+	}
+
+	spin_unlock_irqrestore(&serio_event_lock, flags);
+}
 
-static void serio_invalidate_pending_events(struct serio *serio)
+static struct serio_event *serio_get_event(void)
 {
 	struct serio_event *event;
+	struct list_head *node;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serio_event_lock, flags);
+
+	if (list_empty(&serio_event_list)) {
+		spin_unlock_irqrestore(&serio_event_lock, flags);
+		return NULL;
+	}
+
+	node = serio_event_list.next;
+	event = container_of(node, struct serio_event, node);
+	list_del_init(node);
+
+	spin_unlock_irqrestore(&serio_event_lock, flags);
 
-	list_for_each_entry(event, &serio_event_list, node)
-		if (event->serio == serio)
-			event->serio = NULL;
+	return event;
 }
 
-void serio_handle_events(void)
+static void serio_handle_events(void)
 {
-	struct list_head *node, *next;
 	struct serio_event *event;
 
-	list_for_each_safe(node, next, &serio_event_list) {
-		event = container_of(node, struct serio_event, node);
+	while ((event = serio_get_event())) {
 
 		down(&serio_sem);
-		if (event->serio == NULL)
-			goto event_done;
 
 		switch (event->type) {
 			case SERIO_REGISTER_PORT :
-				__serio_register_port(event->serio);
+				serio_create_port(event->serio);
+				serio_connect_port(event->serio, NULL);
 				break;
 
 			case SERIO_UNREGISTER_PORT :
-				__serio_unregister_port(event->serio);
+				serio_disconnect_port(event->serio);
+				serio_destroy_port(event->serio);
 				break;
 
 			case SERIO_RECONNECT :
-				if (event->serio->dev && event->serio->dev->reconnect)
-					if (event->serio->dev->reconnect(event->serio) == 0)
-						break;
-				/* reconnect failed - fall through to rescan */
+				serio_reconnect_port(event->serio);
+				break;
 
 			case SERIO_RESCAN :
-				if (event->serio->dev && event->serio->dev->disconnect)
-					event->serio->dev->disconnect(event->serio);
-				serio_find_dev(event->serio);
+				serio_disconnect_port(event->serio);
+				serio_connect_port(event->serio, NULL);
 				break;
 			default:
 				break;
 		}
-event_done:
+
 		up(&serio_sem);
-		list_del_init(node);
 		kfree(event);
 	}
 }
 
+static void serio_remove_pending_events(struct serio *serio)
+{
+	struct list_head *node, *next;
+	struct serio_event *event;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serio_event_lock, flags);
+
+	list_for_each_safe(node, next, &serio_event_list) {
+		event = container_of(node, struct serio_event, node);
+		if (event->serio == serio) {
+			list_del_init(node);
+			kfree(event);
+		}
+	}
+
+	spin_unlock_irqrestore(&serio_event_lock, flags);
+}
+
+
 static int serio_thread(void *nothing)
 {
 	lock_kernel();
@@ -163,52 +235,239 @@ static int serio_thread(void *nothing)
 	complete_and_exit(&serio_exited, 0);
 }
 
-static void serio_queue_event(struct serio *serio, int event_type)
+
+/*
+ * Serio port operations
+ */
+
+static ssize_t serio_show_description(struct device *dev, char *buf)
 {
-	struct serio_event *event;
+	struct serio *serio = to_serio_port(dev);
+	return sprintf(buf, "%s\n", serio->name);
+}
 
-	if ((event = kmalloc(sizeof(struct serio_event), GFP_ATOMIC))) {
-		event->type = event_type;
-		event->serio = serio;
+static ssize_t serio_show_driver(struct device *dev, char *buf)
+{
+	return sprintf(buf, "%s\n", dev->driver ? dev->driver->name : "(none)");
+}
 
-		list_add_tail(&event->node, &serio_event_list);
-		wake_up(&serio_wait);
+static ssize_t serio_rebind_driver(struct device *dev, const char *buf, size_t count)
+{
+	struct serio *serio = to_serio_port(dev);
+	struct device_driver *drv;
+	int retval;
+
+	retval = down_interruptible(&serio_sem);
+	if (retval)
+		return retval;
+
+	retval = count;
+	if (!strncmp(buf, "none", count)) {
+		serio_disconnect_port(serio);
+	} else if (!strncmp(buf, "reconnect", count)) {
+		serio_reconnect_port(serio);
+	} else if (!strncmp(buf, "rescan", count)) {
+		serio_disconnect_port(serio);
+		serio_connect_port(serio, NULL);
+	} else if ((drv = driver_find(buf, &serio_bus)) != NULL) {
+		serio_disconnect_port(serio);
+		serio_connect_port(serio, to_serio_driver(drv));
+		put_driver(drv);
+	} else {
+		retval = -EINVAL;
 	}
+
+	up(&serio_sem);
+
+	return retval;
 }
 
-void serio_rescan(struct serio *serio)
+static ssize_t serio_show_bind_mode(struct device *dev, char *buf)
 {
-	serio_queue_event(serio, SERIO_RESCAN);
+	struct serio *serio = to_serio_port(dev);
+	return sprintf(buf, "%s\n", serio->manual_bind ? "manual" : "auto");
 }
 
-void serio_reconnect(struct serio *serio)
+static ssize_t serio_set_bind_mode(struct device *dev, const char *buf, size_t count)
 {
-	serio_queue_event(serio, SERIO_RECONNECT);
+	struct serio *serio = to_serio_port(dev);
+	int retval;
+
+	retval = count;
+	if (!strncmp(buf, "manual", count)) {
+		serio->manual_bind = 1;
+	} else if (!strncmp(buf, "auto", count)) {
+		serio->manual_bind = 0;
+	} else {
+		retval = -EINVAL;
+	}
+
+	return retval;
 }
 
-irqreturn_t serio_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+static struct device_attribute serio_device_attrs[] = {
+	__ATTR(description, S_IRUGO, serio_show_description, NULL),
+	__ATTR(driver, S_IWUSR | S_IRUGO, serio_show_driver, serio_rebind_driver),
+	__ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode),
+	__ATTR_NULL
+};
+
+
+static void serio_release_port(struct device *dev)
 {
-	irqreturn_t ret = IRQ_NONE;
+	struct serio *serio = to_serio_port(dev);
 
-        if (serio->dev && serio->dev->interrupt) {
-                ret = serio->dev->interrupt(serio, data, flags, regs);
-	} else {
-		if (!flags) {
-			if ((serio->type == SERIO_8042 ||
-				serio->type == SERIO_8042_XL) && (data != 0xaa))
-					return ret;
-			serio_rescan(serio);
-			ret = IRQ_HANDLED;
+	kfree(serio);
+	module_put(THIS_MODULE);
+}
+
+static void serio_create_port(struct serio *serio)
+{
+	try_module_get(THIS_MODULE);
+
+	spin_lock_init(&serio->lock);
+	list_add_tail(&serio->node, &serio_list);
+	snprintf(serio->dev.bus_id, sizeof(serio->dev.bus_id), "serio%d", serio_no++);
+	serio->dev.bus = &serio_bus;
+	serio->dev.release = serio_release_port;
+	if (serio->parent)
+		serio->dev.parent = &serio->parent->dev;
+	device_register(&serio->dev);
+}
+
+/*
+ * serio_destroy_port() completes deregistration process and removes
+ * port from the system
+ */
+static void serio_destroy_port(struct serio *serio)
+{
+	struct serio_driver *drv = serio->drv;
+	unsigned long flags;
+
+	serio_remove_pending_events(serio);
+	list_del_init(&serio->node);
+
+	if (drv) {
+		drv->disconnect(serio);
+		down_write(&serio_bus.subsys.rwsem);
+		device_release_driver(&serio->dev);
+		up_write(&serio_bus.subsys.rwsem);
+		put_driver(&drv->driver);
+	}
+
+	if (serio->parent) {
+		spin_lock_irqsave(&serio->parent->lock, flags);
+		serio->parent->child = NULL;
+		spin_unlock_irqrestore(&serio->parent->lock, flags);
+	}
+
+	device_unregister(&serio->dev);
+}
+
+/*
+ * serio_connect_port() tries to bind the port and possible all its
+ * children to appropriate drivers. If driver passed in the function will not
+ * try otehr drivers when binding parent port.
+ */
+static void serio_connect_port(struct serio *serio, struct serio_driver *drv)
+{
+	WARN_ON(serio->drv);
+	WARN_ON(serio->child);
+
+	if (drv)
+		serio_bind_driver(serio, drv);
+	else if (!serio->manual_bind)
+		serio_find_driver(serio);
+
+	/* Ok, now bind children, if any */
+	while (serio->child) {
+		serio = serio->child;
+
+		WARN_ON(serio->drv);
+		WARN_ON(serio->child);
+
+		serio_create_port(serio);
+
+		if (!serio->manual_bind) {
+			/*
+			 * With children we just _prefer_ passed in driver,
+			 * but we will try other options in case preferred
+			 * is not the one
+			 */
+			if (!drv || !serio_bind_driver(serio, drv))
+				serio_find_driver(serio);
 		}
 	}
-	return ret;
+}
+
+/*
+ *
+ */
+static void serio_reconnect_port(struct serio *serio)
+{
+	do {
+		if (!serio->drv || !serio->drv->reconnect || serio->drv->reconnect(serio)) {
+			serio_disconnect_port(serio);
+			serio_connect_port(serio, NULL);
+			/* Ok, old children are now gone, we are done */
+			break;
+		}
+		serio = serio->child;
+	} while (serio);
+}
+
+/*
+ * serio_disconnect_port() unbinds a port from its driver. As a side effect
+ * all child ports are unbound and destroyed.
+ */
+static void serio_disconnect_port(struct serio *serio)
+{
+	struct serio_driver *drv = serio->drv;
+	struct serio *s;
+
+	if (serio->child) {
+		/*
+		 * Children ports should be disconnected and destroyed
+		 * first, staring with the leaf one, since we don't want
+		 * to do recursion
+		 */
+		do {
+			s = serio->child;
+		} while (s->child);
+
+		while (s != serio) {
+			s = s->parent;
+			serio_destroy_port(s->child);
+		}
+	}
+
+	/*
+	 * Ok, no children left, now disconnect this port
+	 */
+	if (drv) {
+		drv->disconnect(serio);
+		down_write(&serio_bus.subsys.rwsem);
+		device_release_driver(&serio->dev);
+		up_write(&serio_bus.subsys.rwsem);
+		put_driver(&drv->driver);
+	}
+}
+
+void serio_rescan(struct serio *serio)
+{
+	serio_queue_event(serio, SERIO_RESCAN);
+}
+
+void serio_reconnect(struct serio *serio)
+{
+	serio_queue_event(serio, SERIO_RECONNECT);
 }
 
 void serio_register_port(struct serio *serio)
 {
 	down(&serio_sem);
-	__serio_register_port(serio);
+	serio_create_port(serio);
+	serio_connect_port(serio, NULL);
 	up(&serio_sem);
 }
 
@@ -222,21 +481,11 @@ void serio_register_port_delayed(struct serio *serio)
 	serio_queue_event(serio, SERIO_REGISTER_PORT);
 }
 
-/*
- * Should only be called directly if serio_sem has already been taken,
- * for example when unregistering a serio from other input device's
- * connect() function.
- */
-void __serio_register_port(struct serio *serio)
-{
-	list_add_tail(&serio->node, &serio_list);
-	serio_find_dev(serio);
-}
-
 void serio_unregister_port(struct serio *serio)
 {
 	down(&serio_sem);
-	__serio_unregister_port(serio);
+	serio_disconnect_port(serio);
+	serio_destroy_port(serio);
 	up(&serio_sem);
 }
 
@@ -250,82 +499,171 @@ void serio_unregister_port_delayed(struct serio *serio)
 	serio_queue_event(serio, SERIO_UNREGISTER_PORT);
 }
 
+
 /*
- * Should only be called directly if serio_sem has already been taken,
- * for example when unregistering a serio from other input device's
- * disconnect() function.
+ * Serio driver operations
  */
-void __serio_unregister_port(struct serio *serio)
+
+static ssize_t serio_driver_show_description(struct device_driver *drv, char *buf)
 {
-	serio_invalidate_pending_events(serio);
-	list_del_init(&serio->node);
-	if (serio->dev && serio->dev->disconnect)
-		serio->dev->disconnect(serio);
+	struct serio_driver *driver = to_serio_driver(drv);
+	return sprintf(buf, "%s\n", driver->description ? driver->description : "(none)");
+}
+
+static ssize_t serio_driver_show_bind_mode(struct device_driver *drv, char *buf)
+{
+	struct serio_driver *serio_drv = to_serio_driver(drv);
+	return sprintf(buf, "%s\n", serio_drv->manual_bind ? "manual" : "auto");
 }
 
-void serio_register_device(struct serio_dev *dev)
+static ssize_t serio_driver_set_bind_mode(struct device_driver *drv, const char *buf, size_t count)
+{
+	struct serio_driver *serio_drv = to_serio_driver(drv);
+	int retval;
+
+	retval = count;
+	if (!strncmp(buf, "manual", count)) {
+		serio_drv->manual_bind = 1;
+	} else if (!strncmp(buf, "auto", count)) {
+		serio_drv->manual_bind = 0;
+	} else {
+		retval = -EINVAL;
+	}
+
+	return retval;
+}
+
+
+static struct driver_attribute serio_driver_attrs[] = {
+	__ATTR(description, S_IRUGO, serio_driver_show_description, NULL),
+	__ATTR(bind_mode, S_IWUSR | S_IRUGO,
+		serio_driver_show_bind_mode, serio_driver_set_bind_mode),
+	__ATTR_NULL
+};
+
+void serio_register_driver(struct serio_driver *drv)
 {
 	struct serio *serio;
+
 	down(&serio_sem);
-	list_add_tail(&dev->node, &serio_dev_list);
-	list_for_each_entry(serio, &serio_list, node)
-		if (!serio->dev && dev->connect)
-			dev->connect(serio, dev);
+
+	list_add_tail(&drv->node, &serio_driver_list);
+
+	drv->driver.bus = &serio_bus;
+	driver_register(&drv->driver);
+
+	if (drv->manual_bind)
+		goto out;
+
+start_over:
+	list_for_each_entry(serio, &serio_list, node) {
+		if (!serio->drv) {
+			serio_connect_port(serio, drv);
+			/*
+			 * if new child appeared then the list is changed,
+			 * we need to start over
+			 */
+			if (serio->child)
+				goto start_over;
+		}
+	}
+
+out:
 	up(&serio_sem);
 }
 
-void serio_unregister_device(struct serio_dev *dev)
+void serio_unregister_driver(struct serio_driver *drv)
 {
 	struct serio *serio;
 
 	down(&serio_sem);
-	list_del_init(&dev->node);
 
+	list_del_init(&drv->node);
+
+start_over:
 	list_for_each_entry(serio, &serio_list, node) {
-		if (serio->dev == dev && dev->disconnect)
-			dev->disconnect(serio);
-		serio_find_dev(serio);
+		if (serio->drv == drv) {
+			serio_disconnect_port(serio);
+			serio_connect_port(serio, NULL);
+			/* we could've deleted some ports, restart */
+			goto start_over;
+		}
 	}
+
+	driver_unregister(&drv->driver);
+
 	up(&serio_sem);
 }
 
-/* called from serio_dev->connect/disconnect methods under serio_sem */
-int serio_open(struct serio *serio, struct serio_dev *dev)
+/* called from serio_driver->connect/disconnect methods under serio_sem */
+int serio_open(struct serio *serio, struct serio_driver *drv)
 {
-	serio->dev = dev;
+	serio_pause_rx(serio);
+	serio->drv = drv;
+	serio_continue_rx(serio);
+
 	if (serio->open && serio->open(serio)) {
-		serio->dev = NULL;
+		serio_pause_rx(serio);
+		serio->drv = NULL;
+		serio_continue_rx(serio);
 		return -1;
 	}
 	return 0;
 }
 
-/* called from serio_dev->connect/disconnect methods under serio_sem */
+/* called from serio_driver->connect/disconnect methods under serio_sem */
 void serio_close(struct serio *serio)
 {
 	if (serio->close)
 		serio->close(serio);
-	serio->dev = NULL;
+
+	serio_pause_rx(serio);
+	serio->drv = NULL;
+	serio_continue_rx(serio);
 }
 
-static int __init serio_init(void)
+irqreturn_t serio_interrupt(struct serio *serio,
+		unsigned char data, unsigned int dfl, struct pt_regs *regs)
 {
-	int pid;
+	unsigned long flags;
+	irqreturn_t ret = IRQ_NONE;
+
+	spin_lock_irqsave(&serio->lock, flags);
+
+        if (likely(serio->drv)) {
+                ret = serio->drv->interrupt(serio, data, dfl, regs);
+	} else {
+		if (!dfl) {
+			if ((serio->type != SERIO_8042 &&
+			     serio->type != SERIO_8042_XL) || (data == 0xaa)) {
+				serio_rescan(serio);
+				ret = IRQ_HANDLED;
+			}
+		}
+	}
+
+	spin_unlock_irqrestore(&serio->lock, flags);
 
-	pid = kernel_thread(serio_thread, NULL, CLONE_KERNEL);
+	return ret;
+}
 
-	if (!pid) {
+static int __init serio_init(void)
+{
+	if (!(serio_pid = kernel_thread(serio_thread, NULL, CLONE_KERNEL))) {
 		printk(KERN_WARNING "serio: Failed to start kseriod\n");
 		return -1;
 	}
 
-	serio_pid = pid;
+	serio_bus.dev_attrs = serio_device_attrs;
+	serio_bus.drv_attrs = serio_driver_attrs;
+	bus_register(&serio_bus);
 
 	return 0;
 }
 
 static void __exit serio_exit(void)
 {
+	bus_unregister(&serio_bus);
 	kill_proc(serio_pid, SIGTERM, 1);
 	wait_for_completion(&serio_exited);
 }

drivers/input/serio/serio_raw.c

+/*
+ * Raw serio device providing access to a raw byte stream from underlying
+ * serio port. Closely emulates behavior of pre-2.6 /dev/psaux device
+ *
+ * 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
+ * the Free Software Foundation.
+ */
+
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/major.h>
+#include <linux/device.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/wait.h>
+
+#define DRIVER_DESC	"Raw serio driver"
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define SERIO_RAW_QUEUE_LEN	64
+struct serio_raw {
+	unsigned char queue[SERIO_RAW_QUEUE_LEN];
+	unsigned int tail, head;
+
+	char name[16];
+	unsigned int refcnt;
+	struct serio *serio;
+	struct miscdevice dev;
+	wait_queue_head_t wait;
+	struct list_head list;
+	struct list_head node;
+};
+
+struct serio_raw_list {
+	struct fasync_struct *fasync;
+	struct serio_raw *serio_raw;
+	struct list_head node;
+};
+
+static DECLARE_MUTEX(serio_raw_sem);
+static LIST_HEAD(serio_raw_list);
+static unsigned int serio_raw_no;
+
+/*********************************************************************
+ *             Interface with userspace (file operations)            *
+ *********************************************************************/
+
+static int serio_raw_fasync(int fd, struct file *file, int on)
+{
+	struct serio_raw_list *list = file->private_data;
+	int retval;
+
+	retval = fasync_helper(fd, file, on, &list->fasync);
+	return retval < 0 ? retval : 0;
+}
+
+static struct serio_raw *serio_raw_locate(int minor)
+{
+	struct serio_raw *serio_raw;
+
+	list_for_each_entry(serio_raw, &serio_raw_list, node) {
+		if (serio_raw->dev.minor == minor)
+			return serio_raw;
+	}
+
+	return NULL;
+}
+
+static int serio_raw_open(struct inode *inode, struct file *file)
+{
+	struct serio_raw *serio_raw;
+	struct serio_raw_list *list;
+	int retval = 0;
+
+	retval = down_interruptible(&serio_raw_sem);
+	if (retval)
+		return retval;
+
+	if (!(serio_raw = serio_raw_locate(iminor(inode)))) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	if (!serio_raw->serio) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	if (!(list = kmalloc(sizeof(struct serio_raw_list), GFP_KERNEL))) {
+		retval = -ENOMEM;
+		goto out;
+	}
+
+	memset(list, 0, sizeof(struct serio_raw_list));
+	list->serio_raw = serio_raw;
+	file->private_data = list;
+
+	serio_raw->refcnt++;
+	list_add_tail(&list->node, &serio_raw->list);
+
+out:
+	up(&serio_raw_sem);
+	return retval;
+}
+
+static int serio_raw_cleanup(struct serio_raw *serio_raw)
+{
+	if (--serio_raw->refcnt == 0) {
+		misc_deregister(&serio_raw->dev);
+		list_del_init(&serio_raw->node);
+		kfree(serio_raw);
+
+		return 1;
+	}
+
+	return 0;
+}
+
+static int serio_raw_release(struct inode *inode, struct file *file)
+{
+	struct serio_raw_list *list = file->private_data;
+	struct serio_raw *serio_raw = list->serio_raw;
+
+	down(&serio_raw_sem);
+
+	serio_raw_fasync(-1, file, 0);
+	serio_raw_cleanup(serio_raw);
+
+	up(&serio_raw_sem);
+	return 0;
+}
+
+static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
+{
+	unsigned long flags;
+	int empty;
+
+	spin_lock_irqsave(&serio_raw->serio->lock, flags);
+
+	empty = serio_raw->head == serio_raw->tail;
+	if (!empty) {
+		*c = serio_raw->queue[serio_raw->tail];
+		serio_raw->tail = (serio_raw->tail + 1) % SERIO_RAW_QUEUE_LEN;
+	}
+
+	spin_unlock_irqrestore(&serio_raw->serio->lock, flags);
+
+	return !empty;
+}
+
+static ssize_t serio_raw_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
+{
+	struct serio_raw_list *list = file->private_data;
+	struct serio_raw *serio_raw = list->serio_raw;
+	char c;
+	ssize_t retval = 0;
+
+	if (!serio_raw->serio)
+		return -ENODEV;
+
+	if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))
+		return -EAGAIN;
+
+	retval = wait_event_interruptible(list->serio_raw->wait,
+					  serio_raw->head != serio_raw->tail || !serio_raw->serio);
+	if (retval)
+		return retval;
+
+	if (!serio_raw->serio)
+		return -ENODEV;
+
+	while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
+		if (put_user(c, buffer++))
+			return -EFAULT;
+		retval++;
+	}
+
+	return retval;
+}
+
+static ssize_t serio_raw_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
+{
+	struct serio_raw_list *list = file->private_data;
+	ssize_t written = 0;
+	int retval;
+	unsigned char c;
+
+	retval = down_interruptible(&serio_raw_sem);
+	if (retval)
+		return retval;
+
+	if (!list->serio_raw->serio) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	if (count > 32)
+		count = 32;
+
+	while (count--) {
+		if (get_user(c, buffer++)) {
+			retval = -EFAULT;
+			goto out;
+		}
+		if (serio_write(list->serio_raw->serio, c)) {
+			retval = -EIO;
+			goto out;
+		}
+		written++;
+	};
+
+out:
+	up(&serio_raw_sem);
+	return written;
+}
+
+static unsigned int serio_raw_poll(struct file *file, poll_table *wait)
+{
+	struct serio_raw_list *list = file->private_data;
+
+	poll_wait(file, &list->serio_raw->wait, wait);
+
+	if (list->serio_raw->head != list->serio_raw->tail)
+		return POLLIN | POLLRDNORM;
+
+	return 0;
+}
+
+struct file_operations serio_raw_fops = {
+	.owner =	THIS_MODULE,
+	.open =		serio_raw_open,
+	.release =	serio_raw_release,
+	.read =		serio_raw_read,
+	.write =	serio_raw_write,
+	.poll =		serio_raw_poll,
+	.fasync =	serio_raw_fasync,
+};
+
+
+/*********************************************************************
+ *                   Interface with serio port   	             *
+ *********************************************************************/
+
+static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
+					unsigned int dfl, struct pt_regs *regs)
+{
+	struct serio_raw *serio_raw = serio->private;
+	struct serio_raw_list *list;
+	unsigned int head = serio_raw->head;
+
+	/* we are holding serio->lock here so we are prootected */
+	serio_raw->queue[head] = data;
+	head = (head + 1) % SERIO_RAW_QUEUE_LEN;
+	if (likely(head != serio_raw->tail)) {
+		serio_raw->head = head;
+		list_for_each_entry(list, &serio_raw->list, node)
+			kill_fasync(&list->fasync, SIGIO, POLL_IN);
+		wake_up_interruptible(&serio_raw->wait);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static void serio_raw_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct serio_raw *serio_raw;
+	int err;
+
+	if ((serio->type & SERIO_TYPE) != SERIO_8042)
+		return;
+
+	if (!(serio_raw = kmalloc(sizeof(struct serio_raw), GFP_KERNEL))) {
+		printk(KERN_ERR "serio_raw.c: can't allocate memory for a device\n");
+		return;
+	}
+
+	down(&serio_raw_sem);
+
+	memset(serio_raw, 0, sizeof(struct serio_raw));
+	snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);
+	serio_raw->refcnt = 1;
+	serio_raw->serio = serio;
+	INIT_LIST_HEAD(&serio_raw->list);
+	init_waitqueue_head(&serio_raw->wait);
+
+	serio->private = serio_raw;
+	if (serio_open(serio, drv))
+		goto out_free;
+
+	list_add_tail(&serio_raw->node, &serio_raw_list);
+
+	serio_raw->dev.minor = PSMOUSE_MINOR;
+	serio_raw->dev.name = serio_raw->name;
+	serio_raw->dev.fops = &serio_raw_fops;
+
+	err = misc_register(&serio_raw->dev);
+	if (err) {
+		serio_raw->dev.minor = MISC_DYNAMIC_MINOR;
+		err = misc_register(&serio_raw->dev);
+	}
+
+	if (err) {
+		printk(KERN_INFO "serio_raw: failed to register raw access device for %s\n",
+			serio->phys);
+		goto out_close;
+	}
+
+	printk(KERN_INFO "serio_raw: raw access enabled on %s (%s, minor %d)\n",
+		serio->phys, serio_raw->name, serio_raw->dev.minor);
+	goto out;
+
+out_close:
+	serio_close(serio);
+	list_del_init(&serio_raw->node);
+out_free:
+	serio->private = NULL;
+	kfree(serio_raw);
+out:
+	up(&serio_raw_sem);
+}
+
+static int serio_raw_reconnect(struct serio *serio)
+{
+	struct serio_raw *serio_raw = serio->private;
+	struct serio_driver *drv = serio->drv;
+
+	if (!drv || !serio_raw) {
+		printk(KERN_DEBUG "serio_raw: reconnect request, but serio is disconnected, ignoring...\n");
+		return -1;
+	}
+
+	/*
+	 * Nothing needs to be done here, we just need this method to
+	 * keep the same device.
+	 */
+	return 0;
+}
+
+static void serio_raw_disconnect(struct serio *serio)
+{
+	struct serio_raw *serio_raw;
+
+	down(&serio_raw_sem);
+
+	serio_raw = serio->private;
+
+	serio_close(serio);
+	serio->private = NULL;
+
+	serio_raw->serio = NULL;
+	if (!serio_raw_cleanup(serio_raw))
+		wake_up_interruptible(&serio_raw->wait);
+
+	up(&serio_raw_sem);
+}
+
+static struct serio_driver serio_raw_drv = {
+	.driver		= {
+		.name	= "serio_raw",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= serio_raw_interrupt,
+	.connect	= serio_raw_connect,
+	.reconnect	= serio_raw_reconnect,
+	.disconnect	= serio_raw_disconnect,
+	.manual_bind	= 1,
+};
+
+int __init serio_raw_init(void)
+{
+	serio_register_driver(&serio_raw_drv);
+	return 0;
+}
+
+void __exit serio_raw_exit(void)
+{
+	serio_unregister_driver(&serio_raw_drv);
+}
+
+module_init(serio_raw_init);
+module_exit(serio_raw_exit);

drivers/input/serio/serport.c

@@ -31,28 +31,25 @@ MODULE_ALIAS_LDISC(N_MOUSE);
 struct serport {
 	struct tty_struct *tty;
 	wait_queue_head_t wait;
-	struct serio serio;
+	struct serio *serio;
 	unsigned long flags;
-	char phys[32];
 };
 
-char serport_name[] = "Serial port";
-
 /*
  * Callback functions from the serio code.
  */
 
 static int serport_serio_write(struct serio *serio, unsigned char data)
 {
-	struct serport *serport = serio->driver;
+	struct serport *serport = serio->port_data;
 	return -(serport->tty->driver->write(serport->tty, 0, &data, 1) != 1);
 }
 
 static void serport_serio_close(struct serio *serio)
 {
-	struct serport *serport = serio->driver;
+	struct serport *serport = serio->port_data;
 
-	serport->serio.type = 0;
+	serport->serio->type = 0;
 	wake_up_interruptible(&serport->wait);
 }
 
@@ -64,26 +61,30 @@ static void serport_serio_close(struct serio *serio)
 static int serport_ldisc_open(struct tty_struct *tty)
 {
 	struct serport *serport;
+	struct serio *serio;
 	char name[64];
 
 	serport = kmalloc(sizeof(struct serport), GFP_KERNEL);
-	if (unlikely(!serport))
+	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (unlikely(!serport || !serio)) {
+		kfree(serport);
+		kfree(serio);
 		return -ENOMEM;
-	memset(serport, 0, sizeof(struct serport));
+	}
 
+	memset(serport, 0, sizeof(struct serport));
+	serport->serio = serio;
 	set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 	serport->tty = tty;
 	tty->disc_data = serport;
 
-	snprintf(serport->phys, sizeof(serport->phys), "%s/serio0", tty_name(tty, name));
-
-	serport->serio.name = serport_name;
-	serport->serio.phys = serport->phys;
-
-	serport->serio.type = SERIO_RS232;
-	serport->serio.write = serport_serio_write;
-	serport->serio.close = serport_serio_close;
-	serport->serio.driver = serport;
+	memset(serio, 0, sizeof(struct serio));
+	strlcpy(serio->name, "Serial port", sizeof(serio->name));
+	snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", tty_name(tty, name));
+	serio->type = SERIO_RS232;
+	serio->write = serport_serio_write;
+	serio->close = serport_serio_close;
+	serio->port_data = serport;
 
 	init_waitqueue_head(&serport->wait);
 
@@ -114,7 +115,7 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
 	struct serport *serport = (struct serport*) tty->disc_data;
 	int i;
 	for (i = 0; i < count; i++)
-		serio_interrupt(&serport->serio, cp[i], 0, NULL);
+		serio_interrupt(serport->serio, cp[i], 0, NULL);
 }
 
 /*
@@ -142,10 +143,10 @@ static ssize_t serport_ldisc_read(struct tty_struct * tty, struct file * file, u
 	if (test_and_set_bit(SERPORT_BUSY, &serport->flags))
 		return -EBUSY;
 
-	serio_register_port(&serport->serio);
+	serio_register_port(serport->serio);
 	printk(KERN_INFO "serio: Serial port %s\n", tty_name(tty, name));
-	wait_event_interruptible(serport->wait, !serport->serio.type);
-	serio_unregister_port(&serport->serio);
+	wait_event_interruptible(serport->wait, !serport->serio->type);
+	serio_unregister_port(serport->serio);
 
 	clear_bit(SERPORT_BUSY, &serport->flags);
 
@@ -161,7 +162,7 @@ static int serport_ldisc_ioctl(struct tty_struct * tty, struct file * file, unsi
 	struct serport *serport = (struct serport*) tty->disc_data;
 
 	if (cmd == SPIOCSTYPE)
-		return get_user(serport->serio.type, (unsigned long __user *) arg);
+		return get_user(serport->serio->type, (unsigned long __user *) arg);
 
 	return -EINVAL;
 }
@@ -170,7 +171,7 @@ static void serport_ldisc_write_wakeup(struct tty_struct * tty)
 {
 	struct serport *sp = (struct serport *) tty->disc_data;
 
-	serio_dev_write_wakeup(&sp->serio);
+	serio_drv_write_wakeup(sp->serio);
 }
 
 /*

drivers/input/touchscreen/gunze.c

@@ -36,8 +36,10 @@
 #include <linux/serio.h>
 #include <linux/init.h>
 
+#define DRIVER_DESC	"Gunze AHL-51S touchscreen driver"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Gunze AHL-51S touchscreen driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -111,7 +113,7 @@ static void gunze_disconnect(struct serio *serio)
  * and if yes, registers it as an input device.
  */
 
-static void gunze_connect(struct serio *serio, struct serio_dev *dev)
+static void gunze_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct gunze *gunze;
 
@@ -142,7 +144,7 @@ static void gunze_connect(struct serio *serio, struct serio_dev *dev)
 	gunze->dev.id.product = 0x0051;
 	gunze->dev.id.version = 0x0100;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
 		kfree(gunze);
 		return;
 	}
@@ -156,10 +158,14 @@ static void gunze_connect(struct serio *serio, struct serio_dev *dev)
  * The serio device structure.
  */
 
-static struct serio_dev gunze_dev = {
-	.interrupt =	gunze_interrupt,
-	.connect =	gunze_connect,
-	.disconnect =	gunze_disconnect,
+static struct serio_driver gunze_drv = {
+	.driver		= {
+		.name	= "gunze",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= gunze_interrupt,
+	.connect	= gunze_connect,
+	.disconnect	= gunze_disconnect,
 };
 
 /*
@@ -168,13 +174,13 @@ static struct serio_dev gunze_dev = {
 
 int __init gunze_init(void)
 {
-	serio_register_device(&gunze_dev);
+	serio_register_driver(&gunze_drv);
 	return 0;
 }
 
 void __exit gunze_exit(void)
 {
-	serio_unregister_device(&gunze_dev);
+	serio_unregister_driver(&gunze_drv);
 }
 
 module_init(gunze_init);

drivers/input/touchscreen/h3600_ts_input.c

@@ -45,8 +45,10 @@
 #include <asm/arch/hardware.h>
 #include <asm/arch/irqs.h>
 
+#define DRIVER_DESC	"H3600 touchscreen driver"
+
 MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
-MODULE_DESCRIPTION("H3600 touchscreen driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 /*
@@ -373,7 +375,7 @@ static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
  * new serio device. It looks whether it was registered as a H3600 touchscreen
  * and if yes, registers it as an input device.
  */
-static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
+static void h3600ts_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct h3600_dev *ts;
 
@@ -441,7 +443,7 @@ static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
 	ts->dev.id.product = 0x0666;  /* FIXME !!! We can ask the hardware */
 	ts->dev.id.version = 0x0100;
 
-	if (serio_open(serio, dev)) {
+	if (serio_open(serio, drv)) {
         	free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts);
         	free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts);
 		kfree(ts);
@@ -478,10 +480,14 @@ static void h3600ts_disconnect(struct serio *serio)
  * The serio device structure.
  */
 
-static struct serio_dev h3600ts_dev = {
-	.interrupt =	h3600ts_interrupt,
-	.connect =	h3600ts_connect,
-	.disconnect =	h3600ts_disconnect,
+static struct serio_driver h3600ts_drv = {
+	.driver		= {
+		.name	= "h3600ts",
+	},
+	.description	= DRIVER_DESC,
+	.interrupt	= h3600ts_interrupt,
+	.connect	= h3600ts_connect,
+	.disconnect	= h3600ts_disconnect,
 };
 
 /*
@@ -490,13 +496,13 @@ static struct serio_dev h3600ts_dev = {
 
 static int __init h3600ts_init(void)
 {
-	serio_register_device(&h3600ts_dev);
+	serio_register_driver(&h3600ts_drv);
 	return 0;
 }
 
 static void __exit h3600ts_exit(void)
 {
-	serio_unregister_device(&h3600ts_dev);
+	serio_unregister_driver(&h3600ts_drv);
 }
 
 module_init(h3600ts_init);

drivers/input/tsdev.c

@@ -3,32 +3,42 @@
  *
  *  Copyright (c) 2001 "Crazy" james Simmons 
  *
- *  Input driver to Touchscreen device driver module.
+ *  Compaq touchscreen protocol driver. The protocol emulated by this driver
+ *  is obsolete; for new programs use the tslib library which can read directly
+ *  from evdev and perform dejittering, variance filtering and calibration -
+ *  all in user space, not at kernel level. The meaning of this driver is
+ *  to allow usage of newer input drivers with old applications that use the
+ *  old /dev/h3600_ts and /dev/h3600_tsraw devices.
  *
- *  Sponsored by Transvirtual Technology
+ *  09-Apr-2004: Andrew Zabolotny <zap@homelink.ru>
+ *      Fixed to actually work, not just output random numbers.
+ *      Added support for both h3600_ts and h3600_tsraw protocol
+ *      emulation.
  */
 
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or 
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- * 
+ *
  * Should you need to contact me, the author, you can do so either by
- * e-mail - mail your message to <jsimmons@transvirtual.com>.
+ * e-mail - mail your message to <jsimmons@infradead.org>.
  */
 
 #define TSDEV_MINOR_BASE 	128
 #define TSDEV_MINORS		32
+/* First 16 devices are h3600_ts compatible; second 16 are h3600_tsraw */
+#define TSDEV_MINOR_MASK	15
 #define TSDEV_BUFFER_SIZE	64
 
 #include <linux/slab.h>
@@ -52,48 +62,84 @@
 #define CONFIG_INPUT_TSDEV_SCREEN_Y	320
 #endif
 
+/* This driver emulates both protocols of the old h3600_ts and h3600_tsraw
+ * devices. The first one must output X/Y data in 'cooked' format, e.g.
+ * filtered, dejittered and calibrated. Second device just outputs raw
+ * data received from the hardware.
+ *
+ * This driver doesn't support filtering and dejittering; it supports only
+ * calibration. Filtering and dejittering must be done in the low-level
+ * driver, if needed, because it may gain additional benefits from knowing
+ * the low-level details, the nature of noise and so on.
+ *
+ * The driver precomputes a calibration matrix given the initial xres and
+ * yres values (quite innacurate for most touchscreens) that will result
+ * in a more or less expected range of output values. The driver supports
+ * the TS_SET_CAL ioctl, which will replace the calibration matrix with a
+ * new one, supposedly generated from the values taken from the raw device.
+ */
+
 MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
 MODULE_DESCRIPTION("Input driver to touchscreen converter");
 MODULE_LICENSE("GPL");
 
 static int xres = CONFIG_INPUT_TSDEV_SCREEN_X;
 module_param(xres, uint, 0);
-MODULE_PARM_DESC(xres, "Horizontal screen resolution");
+MODULE_PARM_DESC(xres, "Horizontal screen resolution (can be negative for X-mirror)");
 
 static int yres = CONFIG_INPUT_TSDEV_SCREEN_Y;
 module_param(yres, uint, 0);
-MODULE_PARM_DESC(yres, "Vertical screen resolution");
+MODULE_PARM_DESC(yres, "Vertical screen resolution (can be negative for Y-mirror)");
+
+/* From Compaq's Touch Screen Specification version 0.2 (draft) */
+struct ts_event {
+	short pressure;
+	short x;
+	short y;
+	short millisecs;
+};
+
+struct ts_calibration {
+	int xscale;
+	int xtrans;
+	int yscale;
+	int ytrans;
+	int xyswap;
+};
 
 struct tsdev {
 	int exist;
 	int open;
 	int minor;
-	char name[16];
+	char name[8];
 	wait_queue_head_t wait;
 	struct list_head list;
 	struct input_handle handle;
+	int x, y, pressure;
+	struct ts_calibration cal;
 };
 
-/* From Compaq's Touch Screen Specification version 0.2 (draft) */
-typedef struct {
-	short pressure;
-	short x;
-	short y;
-	short millisecs;
-} TS_EVENT;
-
 struct tsdev_list {
 	struct fasync_struct *fasync;
 	struct list_head node;
 	struct tsdev *tsdev;
 	int head, tail;
-	int oldx, oldy, pendown;
-	TS_EVENT event[TSDEV_BUFFER_SIZE];
+	struct ts_event event[TSDEV_BUFFER_SIZE];
+	int raw;
 };
 
+/* The following ioctl codes are defined ONLY for backward compatibility.
+ * Don't use tsdev for new developement; use the tslib library instead.
+ * Touchscreen calibration is a fully userspace task.
+ */
+/* Use 'f' as magic number */
+#define IOC_H3600_TS_MAGIC  'f'
+#define TS_GET_CAL	_IOR(IOC_H3600_TS_MAGIC, 10, struct ts_calibration)
+#define TS_SET_CAL	_IOW(IOC_H3600_TS_MAGIC, 11, struct ts_calibration)
+
 static struct input_handler tsdev_handler;
 
-static struct tsdev *tsdev_table[TSDEV_MINORS];
+static struct tsdev *tsdev_table[TSDEV_MINORS/2];
 
 static int tsdev_fasync(int fd, struct file *file, int on)
 {
@@ -109,13 +155,16 @@ static int tsdev_open(struct inode *inode, struct file *file)
 	int i = iminor(inode) - TSDEV_MINOR_BASE;
 	struct tsdev_list *list;
 
-	if (i >= TSDEV_MINORS || !tsdev_table[i])
+	if (i >= TSDEV_MINORS || !tsdev_table[i & TSDEV_MINOR_MASK])
 		return -ENODEV;
 
 	if (!(list = kmalloc(sizeof(struct tsdev_list), GFP_KERNEL)))
 		return -ENOMEM;
 	memset(list, 0, sizeof(struct tsdev_list));
 
+	list->raw = (i >= TSDEV_MINORS/2) ? 1 : 0;
+
+	i &= TSDEV_MINOR_MASK;
 	list->tsdev = tsdev_table[i];
 	list_add_tail(&list->node, &tsdev_table[i]->list);
 	file->private_data = list;
@@ -161,7 +210,7 @@ static ssize_t tsdev_read(struct file *file, char __user *buffer, size_t count,
 		return -EAGAIN;
 
 	retval = wait_event_interruptible(list->tsdev->wait,
-		(list->head != list->tail) && list->tsdev->exist);
+			list->head != list->tail || !list->tsdev->exist);
 
 	if (retval)
 		return retval;
@@ -169,11 +218,13 @@ static ssize_t tsdev_read(struct file *file, char __user *buffer, size_t count,
 	if (!list->tsdev->exist)
 		return -ENODEV;
 
-	while (list->head != list->tail && retval + sizeof(TS_EVENT) <= count) {
-		if (copy_to_user (buffer + retval, list->event + list->tail, sizeof(TS_EVENT)))
+	while (list->head != list->tail &&
+	       retval + sizeof (struct ts_event) <= count) {
+		if (copy_to_user (buffer + retval, list->event + list->tail,
+				  sizeof (struct ts_event)))
 			return -EFAULT;
 		list->tail = (list->tail + 1) & (TSDEV_BUFFER_SIZE - 1);
-		retval += sizeof(TS_EVENT);
+		retval += sizeof (struct ts_event);
 	}
 
 	return retval;
@@ -193,22 +244,27 @@ static unsigned int tsdev_poll(struct file *file, poll_table * wait)
 static int tsdev_ioctl(struct inode *inode, struct file *file,
 		       unsigned int cmd, unsigned long arg)
 {
-/*
 	struct tsdev_list *list = file->private_data;
-        struct tsdev *evdev = list->tsdev;
-        struct input_dev *dev = tsdev->handle.dev;
-        int retval;
-	
+	struct tsdev *tsdev = list->tsdev;
+	int retval = 0;
+
 	switch (cmd) {
-		case HHEHE:
-			return 0;
-		case hjff:
-			return 0;
-		default:
-			return 0;
+	case TS_GET_CAL:
+		if (copy_to_user ((void *)arg, &tsdev->cal,
+				  sizeof (struct ts_calibration)))
+			retval = -EFAULT;
+		break;
+	case TS_SET_CAL:
+		if (copy_from_user (&tsdev->cal, (void *)arg,
+				    sizeof (struct ts_calibration)))
+			retval = -EFAULT;
+		break;
+	default:
+		retval = -EINVAL;
+		break;
 	}
-*/
-	return -EINVAL;
+
+	return retval;
 }
 
 struct file_operations tsdev_fops = {
@@ -227,82 +283,85 @@ static void tsdev_event(struct input_handle *handle, unsigned int type,
 	struct tsdev *tsdev = handle->private;
 	struct tsdev_list *list;
 	struct timeval time;
-	int size;
 
-	list_for_each_entry(list, &tsdev->list, node) {
-		switch (type) {
-		case EV_ABS:
-			switch (code) {
-			case ABS_X:
-				if (!list->pendown)
-					return;
-				size = handle->dev->absmax[ABS_X] - handle->dev->absmin[ABS_X];
-				if (size > 0)
-					list->oldx = ((value - handle->dev->absmin[ABS_X]) * xres / size);
-				else
-					list->oldx = ((value - handle->dev->absmin[ABS_X]));
-				break;
-			case ABS_Y:
-				if (!list->pendown)
-					return;
-				size = handle->dev->absmax[ABS_Y] - handle->dev->absmin[ABS_Y];
-				if (size > 0)
-					list->oldy = ((value - handle->dev->absmin[ABS_Y]) * yres / size);
-				else
-					list->oldy = ((value - handle->dev->absmin[ABS_Y]));
-				break;
-			case ABS_PRESSURE:
-				list->pendown = ((value > handle->dev-> absmin[ABS_PRESSURE])) ?
-				    value - handle->dev->absmin[ABS_PRESSURE] : 0;
-				break;
-			}
+	switch (type) {
+	case EV_ABS:
+		switch (code) {
+		case ABS_X:
+			tsdev->x = value;
+			break;
+		case ABS_Y:
+			tsdev->y = value;
 			break;
+		case ABS_PRESSURE:
+			if (value > handle->dev->absmax[ABS_PRESSURE])
+				value = handle->dev->absmax[ABS_PRESSURE];
+			value -= handle->dev->absmin[ABS_PRESSURE];
+			if (value < 0)
+				value = 0;
+			tsdev->pressure = value;
+			break;
+		}
+		break;
+
+	case EV_REL:
+		switch (code) {
+		case REL_X:
+			tsdev->x += value;
+			if (tsdev->x < 0)
+				tsdev->x = 0;
+			else if (tsdev->x > xres)
+				tsdev->x = xres;
+			break;
+		case REL_Y:
+			tsdev->y += value;
+			if (tsdev->y < 0)
+				tsdev->y = 0;
+			else if (tsdev->y > yres)
+				tsdev->y = yres;
+			break;
+		}
+		break;
 
-		case EV_REL:
-			switch (code) {
-			case REL_X:
-				if (!list->pendown)
-					return;
-				list->oldx += value;
-				if (list->oldx < 0)
-					list->oldx = 0;
-				else if (list->oldx > xres)
-					list->oldx = xres;
+	case EV_KEY:
+		if (code == BTN_TOUCH || code == BTN_MOUSE) {
+			switch (value) {
+			case 0:
+				tsdev->pressure = 0;
 				break;
-			case REL_Y:
-				if (!list->pendown)
-					return;
-				list->oldy += value;
-				if (list->oldy < 0)
-					list->oldy = 0;
-				else if (list->oldy > xres)
-					list->oldy = xres;
+			case 1:
+				if (!tsdev->pressure)
+					tsdev->pressure = 1;
 				break;
 			}
-			break;
-
-		case EV_KEY:
-			if (code == BTN_TOUCH || code == BTN_MOUSE) {
-				switch (value) {
-				case 0:
-					list->pendown = 0;
-					break;
-				case 1:
-					if (!list->pendown)
-						list->pendown = 1;
-					break;
-				case 2:
-					return;
-				}
-			} else
-				return;
-			break;
 		}
+		break;
+	}
+
+	if (type != EV_SYN || code != SYN_REPORT)
+		return;
+
+	list_for_each_entry(list, &tsdev->list, node) {
+		int x, y, tmp;
+
 		do_gettimeofday(&time);
 		list->event[list->head].millisecs = time.tv_usec / 100;
-		list->event[list->head].pressure = list->pendown;
-		list->event[list->head].x = list->oldx;
-		list->event[list->head].y = list->oldy;
+		list->event[list->head].pressure = tsdev->pressure;
+
+		x = tsdev->x;
+		y = tsdev->y;
+
+		/* Calibration */
+		if (!list->raw) {
+			x = ((x * tsdev->cal.xscale) >> 8) + tsdev->cal.xtrans;
+			y = ((y * tsdev->cal.yscale) >> 8) + tsdev->cal.ytrans;
+			if (tsdev->cal.xyswap) {
+				tmp = x; x = y; y = tmp;
+			}
+		}
+
+		list->event[list->head].x = x;
+		list->event[list->head].y = y;
 		list->head = (list->head + 1) & (TSDEV_BUFFER_SIZE - 1);
 		kill_fasync(&list->fasync, SIGIO, POLL_IN);
 	}
@@ -314,11 +373,11 @@ static struct input_handle *tsdev_connect(struct input_handler *handler,
 					  struct input_device_id *id)
 {
 	struct tsdev *tsdev;
-	int minor;
+	int minor, delta;
 
-	for (minor = 0; minor < TSDEV_MINORS && tsdev_table[minor];
+	for (minor = 0; minor < TSDEV_MINORS/2 && tsdev_table[minor];
 	     minor++);
-	if (minor == TSDEV_MINORS) {
+	if (minor >= TSDEV_MINORS/2) {
 		printk(KERN_ERR
 		       "tsdev: You have way too many touchscreens\n");
 		return NULL;
@@ -340,10 +399,25 @@ static struct input_handle *tsdev_connect(struct input_handler *handler,
 	tsdev->handle.handler = handler;
 	tsdev->handle.private = tsdev;
 
+	/* Precompute the rough calibration matrix */
+	delta = dev->absmax [ABS_X] - dev->absmin [ABS_X] + 1;
+	if (delta == 0)
+		delta = 1;
+	tsdev->cal.xscale = (xres << 8) / delta;
+	tsdev->cal.xtrans = - ((dev->absmin [ABS_X] * tsdev->cal.xscale) >> 8);
+
+	delta = dev->absmax [ABS_Y] - dev->absmin [ABS_Y] + 1;
+	if (delta == 0)
+		delta = 1;
+	tsdev->cal.yscale = (yres << 8) / delta;
+	tsdev->cal.ytrans = - ((dev->absmin [ABS_Y] * tsdev->cal.yscale) >> 8);
+
 	tsdev_table[minor] = tsdev;
-	
+
 	devfs_mk_cdev(MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor),
 			S_IFCHR|S_IRUGO|S_IWUSR, "input/ts%d", minor);
+	devfs_mk_cdev(MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor + TSDEV_MINORS/2),
+			S_IFCHR|S_IRUGO|S_IWUSR, "input/tsraw%d", minor);
 	class_simple_device_add(input_class, 
 				MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor),
 				dev->dev, "ts%d", minor);
@@ -362,6 +436,7 @@ static void tsdev_disconnect(struct input_handle *handle)
 		wake_up_interruptible(&tsdev->wait);
 	} else
 		tsdev_free(tsdev);
+	devfs_remove("input/tsraw%d", tsdev->minor);
 }
 
 static struct input_device_id tsdev_ids[] = {
@@ -379,6 +454,12 @@ static struct input_device_id tsdev_ids[] = {
 	      .absbit	= { BIT(ABS_X) | BIT(ABS_Y) },
 	 },/* A tablet like device, at least touch detection, two absolute axes */
 
+	{
+	      .flags	= INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
+	      .evbit	= { BIT(EV_ABS) },
+	      .absbit	= { BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) },
+	 },/* A tablet like device with several gradations of pressure */
+
 	{},/* Terminating entry */
 };
 

drivers/serial/sunsu.c

@@ -98,7 +98,7 @@ struct uart_sunsu_port {
 	unsigned int		irq;
 
 #ifdef CONFIG_SERIO
-	struct serio		serio;
+	struct serio		*serio;
 	int			serio_open;
 #endif
 };
@@ -520,7 +520,7 @@ static void receive_kbd_ms_chars(struct uart_sunsu_port *up, struct pt_regs *reg
 		/* Stop-A is handled by drivers/char/keyboard.c now. */
 		if (up->su_type == SU_PORT_KBD) {
 #ifdef CONFIG_SERIO
-			serio_interrupt(&up->serio, ch, 0, regs);
+			serio_interrupt(up->serio, ch, 0, regs);
 #endif
 		} else if (up->su_type == SU_PORT_MS) {
 			int ret = suncore_mouse_baud_detection(ch, is_break);
@@ -534,7 +534,7 @@ static void receive_kbd_ms_chars(struct uart_sunsu_port *up, struct pt_regs *reg
 
 			case 0:
 #ifdef CONFIG_SERIO
-				serio_interrupt(&up->serio, ch, 0, regs);
+				serio_interrupt(up->serio, ch, 0, regs);
 #endif
 				break;
 			};
@@ -994,7 +994,7 @@ static spinlock_t sunsu_serio_lock = SPIN_LOCK_UNLOCKED;
 
 static int sunsu_serio_write(struct serio *serio, unsigned char ch)
 {
-	struct uart_sunsu_port *up = serio->driver;
+	struct uart_sunsu_port *up = serio->port_data;
 	unsigned long flags;
 	int lsr;
 
@@ -1014,7 +1014,7 @@ static int sunsu_serio_write(struct serio *serio, unsigned char ch)
 
 static int sunsu_serio_open(struct serio *serio)
 {
-	struct uart_sunsu_port *up = serio->driver;
+	struct uart_sunsu_port *up = serio->port_data;
 	unsigned long flags;
 	int ret;
 
@@ -1031,7 +1031,7 @@ static int sunsu_serio_open(struct serio *serio)
 
 static void sunsu_serio_close(struct serio *serio)
 {
-	struct uart_sunsu_port *up = serio->driver;
+	struct uart_sunsu_port *up = serio->port_data;
 	unsigned long flags;
 
 	spin_lock_irqsave(&sunsu_serio_lock, flags);
@@ -1284,54 +1284,58 @@ static struct uart_driver sunsu_reg = {
 	.major			= TTY_MAJOR,
 };
 
-static int __init sunsu_kbd_ms_init(void)
+static int __init sunsu_kbd_ms_init(struct uart_sunsu_port *up, int channel)
 {
-	struct uart_sunsu_port *up;
-	int i;
+	struct serio *serio;
 
-	for (i = 0, up = sunsu_ports; i < 2; i++, up++) {
-		up->port.line = i;
-		up->port.type = PORT_UNKNOWN;
-		up->port.uartclk = (SU_BASE_BAUD * 16);
+	up->port.line = channel;
+	up->port.type = PORT_UNKNOWN;
+	up->port.uartclk = (SU_BASE_BAUD * 16);
 
-		if (up->su_type == SU_PORT_KBD)
-			up->cflag = B1200 | CS8 | CLOCAL | CREAD;
-		else
-			up->cflag = B4800 | CS8 | CLOCAL | CREAD;
+	if (up->su_type == SU_PORT_KBD)
+		up->cflag = B1200 | CS8 | CLOCAL | CREAD;
+	else
+		up->cflag = B4800 | CS8 | CLOCAL | CREAD;
 
-		sunsu_autoconfig(up);
-		if (up->port.type == PORT_UNKNOWN)
-			continue;
+	sunsu_autoconfig(up);
+	if (up->port.type == PORT_UNKNOWN)
+		return -1;
 
-		printk(KERN_INFO "su%d at 0x%p (irq = %s) is a %s\n",
-		       i,
-		       up->port.membase, __irq_itoa(up->irq),
-		       sunsu_type(&up->port));
+	printk(KERN_INFO "su%d at 0x%p (irq = %s) is a %s\n",
+	       channel,
+	       up->port.membase, __irq_itoa(up->irq),
+	       sunsu_type(&up->port));
 
 #ifdef CONFIG_SERIO
-		memset(&up->serio, 0, sizeof(up->serio));
+	up->serio = serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
+		memset(serio, 0, sizeof(serio));
 
-		up->serio.driver = up;
+		serio->port_data = up;
 
-		up->serio.type = SERIO_RS232;
+		serio->type = SERIO_RS232;
 		if (up->su_type == SU_PORT_KBD) {
-			up->serio.type |= SERIO_SUNKBD;
-			up->serio.name = "sukbd";
+			serio->type |= SERIO_SUNKBD;
+			strlcpy(serio->name, "sukbd", sizeof(serio->name));
 		} else {
-			up->serio.type |= (SERIO_SUN | (1 << 16));
-			up->serio.name = "sums";
+			serio->type |= (SERIO_SUN | (1 << 16));
+			strlcpy(serio->name, "sums", sizeof(serio->name));
 		}
-		up->serio.phys = (i == 0 ? "su/serio0" : "su/serio1");
+		strlcpy(serio->phys, (channel == 0 ? "su/serio0" : "su/serio1"),
+			sizeof(serio->phys));
 
-		up->serio.write = sunsu_serio_write;
-		up->serio.open = sunsu_serio_open;
-		up->serio.close = sunsu_serio_close;
+		serio->write = sunsu_serio_write;
+		serio->open = sunsu_serio_open;
+		serio->close = sunsu_serio_close;
 
-		serio_register_port(&up->serio);
+		serio_register_port(serio);
+	} else {
+		printk(KERN_WARNING "su%d: not enough memory for serio port\n",
+			channel);
+	}
 #endif
 
-		sunsu_startup(&up->port);
-	}
+	sunsu_startup(&up->port);
 	return 0;
 }
 
@@ -1680,10 +1684,12 @@ static int __init sunsu_probe(void)
 	if (scan.msx != -1 && scan.kbx != -1) {
 		sunsu_ports[0].su_type = SU_PORT_MS;
 		sunsu_ports[0].port_node = scan.msnode;
+		sunsu_kbd_ms_init(&sunsu_ports[0], 0);
+
 		sunsu_ports[1].su_type = SU_PORT_KBD;
 		sunsu_ports[1].port_node = scan.kbnode;
+		sunsu_kbd_ms_init(&sunsu_ports[1], 1);
 
-		sunsu_kbd_ms_init();
 		return 0;
 	}
 
@@ -1715,7 +1721,10 @@ static void __exit sunsu_exit(void)
 		if (up->su_type == SU_PORT_MS ||
 		    up->su_type == SU_PORT_KBD) {
 #ifdef CONFIG_SERIO
-			serio_unregister_port(&up->serio);
+			if (up->serio) {
+				serio_unregister_port(up->serio);
+				up->serio = NULL;
+			}
 #endif
 		} else if (up->port.type != PORT_UNKNOWN) {
 			uart_remove_one_port(&sunsu_reg, &up->port);

drivers/serial/sunzilog.c

@@ -107,7 +107,7 @@ struct uart_sunzilog_port {
 	unsigned char			prev_status;
 
 #ifdef CONFIG_SERIO
-	struct serio			serio;
+	struct serio			*serio;
 	int				serio_open;
 #endif
 };
@@ -291,7 +291,7 @@ static void sunzilog_kbdms_receive_chars(struct uart_sunzilog_port *up,
 		/* Stop-A is handled by drivers/char/keyboard.c now. */
 #ifdef CONFIG_SERIO
 		if (up->serio_open)
-			serio_interrupt(&up->serio, ch, 0, regs);
+			serio_interrupt(up->serio, ch, 0, regs);
 #endif
 	} else if (ZS_IS_MOUSE(up)) {
 		int ret = suncore_mouse_baud_detection(ch, is_break);
@@ -306,7 +306,7 @@ static void sunzilog_kbdms_receive_chars(struct uart_sunzilog_port *up,
 		case 0:
 #ifdef CONFIG_SERIO
 			if (up->serio_open)
-				serio_interrupt(&up->serio, ch, 0, regs);
+				serio_interrupt(up->serio, ch, 0, regs);
 #endif
 			break;
 		};
@@ -1295,7 +1295,7 @@ static spinlock_t sunzilog_serio_lock = SPIN_LOCK_UNLOCKED;
 
 static int sunzilog_serio_write(struct serio *serio, unsigned char ch)
 {
-	struct uart_sunzilog_port *up = serio->driver;
+	struct uart_sunzilog_port *up = serio->port_data;
 	unsigned long flags;
 
 	spin_lock_irqsave(&sunzilog_serio_lock, flags);
@@ -1309,7 +1309,7 @@ static int sunzilog_serio_write(struct serio *serio, unsigned char ch)
 
 static int sunzilog_serio_open(struct serio *serio)
 {
-	struct uart_sunzilog_port *up = serio->driver;
+	struct uart_sunzilog_port *up = serio->port_data;
 	unsigned long flags;
 	int ret;
 
@@ -1326,7 +1326,7 @@ static int sunzilog_serio_open(struct serio *serio)
 
 static void sunzilog_serio_close(struct serio *serio)
 {
-	struct uart_sunzilog_port *up = serio->driver;
+	struct uart_sunzilog_port *up = serio->port_data;
 	unsigned long flags;
 
 	spin_lock_irqsave(&sunzilog_serio_lock, flags);
@@ -1545,33 +1545,45 @@ static void __init sunzilog_init_kbdms(struct uart_sunzilog_port *up, int channe
 	up->curregs[R15] = BRKIE;
 	brg = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
 	sunzilog_convert_to_zs(up, up->cflag, 0, brg);
+	sunzilog_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
+	__sunzilog_startup(up);
+}
 
 #ifdef CONFIG_SERIO
-	memset(&up->serio, 0, sizeof(up->serio));
+static void __init sunzilog_register_serio(struct uart_sunzilog_port *up, int channel)
+{
+	struct serio *serio;
 
-	up->serio.driver = up;
+	up->serio = serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
+	if (serio) {
 
-	up->serio.type = SERIO_RS232;
-	if (channel == KEYBOARD_LINE) {
-		up->serio.type |= SERIO_SUNKBD;
-		up->serio.name = "zskbd";
-	} else {
-		up->serio.type |= (SERIO_SUN | (1 << 16));
-		up->serio.name = "zsms";
-	}
-	up->serio.phys = (channel == KEYBOARD_LINE ?
-			  "zs/serio0" : "zs/serio1");
+		memset(serio, 0, sizeof(serio));
 
-	up->serio.write = sunzilog_serio_write;
-	up->serio.open = sunzilog_serio_open;
-	up->serio.close = sunzilog_serio_close;
+		serio->port_data = up;
 
-	serio_register_port(&up->serio);
-#endif
+		serio->type = SERIO_RS232;
+		if (channel == KEYBOARD_LINE) {
+			serio->type |= SERIO_SUNKBD;
+			strlcpy(serio->name, "zskbd", sizeof(serio->name));
+		} else {
+			serio->type |= (SERIO_SUN | (1 << 16));
+			strlcpy(serio->name, "zsms", sizeof(serio->name));
+		}
+		strlcpy(serio->phys,
+			(channel == KEYBOARD_LINE ? "zs/serio0" : "zs/serio1"),
+			sizeof(serio->phys));
 
-	sunzilog_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
-	__sunzilog_startup(up);
+		serio->write = sunzilog_serio_write;
+		serio->open = sunzilog_serio_open;
+		serio->close = sunzilog_serio_close;
+
+		serio_register_port(serio);
+	} else {
+		printk(KERN_WARNING "zs%d: not enough memory for serio port\n",
+			channel);
+	}
 }
+#endif
 
 static void __init sunzilog_init_hw(void)
 {
@@ -1615,6 +1627,11 @@ static void __init sunzilog_init_hw(void)
 		}
 
 		spin_unlock_irqrestore(&up->port.lock, flags);
+
+#ifdef CONFIG_SERIO
+		if (i == KEYBOARD_LINE || i == MOUSE_LINE)
+			sunzilog_register_serio(up, i);
+#endif
 	}
 }
 
@@ -1732,10 +1749,15 @@ static void __exit sunzilog_exit(void)
 	for (i = 0; i < NUM_CHANNELS; i++) {
 		struct uart_sunzilog_port *up = &sunzilog_port_table[i];
 
-		if (ZS_IS_KEYB(up) || ZS_IS_MOUSE(up))
-			continue;
-
-		uart_remove_one_port(&sunzilog_reg, &up->port);
+		if (ZS_IS_KEYB(up) || ZS_IS_MOUSE(up)) {
+#ifdef CONFIG_SERIO
+			if (up->serio) {
+				serio_unregister_port(up->serio);
+				up->serio = NULL;
+			}
+#endif
+		} else
+			uart_remove_one_port(&sunzilog_reg, &up->port);
 	}
 
 	uart_unregister_driver(&sunzilog_reg);

drivers/usb/input/hid-core.c

@@ -219,17 +219,13 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
 		dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
 		return -1;
 	}
-	usages = parser->local.usage_index;
+	
+	if (!(usages = max_t(int, parser->local.usage_index, parser->global.report_count)))
+		return 0; /* Ignore padding fields */
 
 	offset = report->size;
 	report->size += parser->global.report_size * parser->global.report_count;
 
-	if (usages < parser->global.report_count)
-		usages = parser->global.report_count;
-
-	if (usages == 0)
-		return 0; /* ignore padding fields */
-
 	if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
 		return 0;
 
@@ -923,20 +919,20 @@ static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
 	int			status;
 
 	switch (urb->status) {
-	case 0:			/* success */
-		hid_input_report(HID_INPUT_REPORT, urb, regs);
-		break;
-	case -ECONNRESET:	/* unlink */
-	case -ENOENT:
-	case -ESHUTDOWN:
-		return;
-	default:		/* error */
-		dbg("nonzero status in input irq %d", urb->status);
+		case 0:			/* success */
+			hid_input_report(HID_INPUT_REPORT, urb, regs);
+			break;
+		case -ECONNRESET:	/* unlink */
+		case -ENOENT:
+		case -ESHUTDOWN:
+			return;
+		default:		/* error */
+			warn("input irq status %d received", urb->status);
 	}
 	
-	status = usb_submit_urb (urb, SLAB_ATOMIC);
+	status = usb_submit_urb(urb, SLAB_ATOMIC);
 	if (status)
-		err ("can't resubmit intr, %s-%s/input%d, status %d",
+		err("can't resubmit intr, %s-%s/input%d, status %d",
 				hid->dev->bus->bus_name, hid->dev->devpath,
 				hid->ifnum, status);
 }
@@ -1137,23 +1133,31 @@ static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
 	struct hid_device *hid = urb->context;
 	unsigned long flags;
 
-	if (urb->status)
-		warn("output irq status %d received", urb->status);
+	switch (urb->status) {
+		case 0:			/* success */
+		case -ECONNRESET:	/* unlink */
+		case -ENOENT:
+		case -ESHUTDOWN:
+			break;
+		default:		/* error */
+			warn("output irq status %d received", urb->status);
+	}
 
 	spin_lock_irqsave(&hid->outlock, flags);
 
 	hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
 
 	if (hid->outhead != hid->outtail) {
-		hid_submit_out(hid);
+		if (hid_submit_out(hid)) {
+			clear_bit(HID_OUT_RUNNING, &hid->iofl);;
+			wake_up(&hid->wait);
+		}
 		spin_unlock_irqrestore(&hid->outlock, flags);
 		return;
 	}
 
 	clear_bit(HID_OUT_RUNNING, &hid->iofl);
-
 	spin_unlock_irqrestore(&hid->outlock, flags);
-
 	wake_up(&hid->wait);
 }
 
@@ -1166,26 +1170,34 @@ static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
 	struct hid_device *hid = urb->context;
 	unsigned long flags;
 
-	if (urb->status)
-		warn("ctrl urb status %d received", urb->status);
-
 	spin_lock_irqsave(&hid->ctrllock, flags);
 
-	if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN) 
-		hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, regs);
+	switch (urb->status) {
+		case 0:			/* success */
+			if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN) 
+				hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, regs);
+		case -ECONNRESET:	/* unlink */
+		case -ENOENT:
+		case -ESHUTDOWN:
+		case -EPIPE:		/* report not available */
+			break;
+		default:		/* error */
+			warn("ctrl urb status %d received", urb->status);
+	}
 
 	hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
 
 	if (hid->ctrlhead != hid->ctrltail) {
-		hid_submit_ctrl(hid);
+		if (hid_submit_ctrl(hid)) {
+			clear_bit(HID_CTRL_RUNNING, &hid->iofl);
+			wake_up(&hid->wait);
+		}
 		spin_unlock_irqrestore(&hid->ctrllock, flags);
 		return;
 	}
 
 	clear_bit(HID_CTRL_RUNNING, &hid->iofl);
-
 	spin_unlock_irqrestore(&hid->ctrllock, flags);
-
 	wake_up(&hid->wait);
 }
 
@@ -1211,7 +1223,8 @@ void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsign
 		hid->outhead = head;
 
 		if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl))
-			hid_submit_out(hid);
+			if (hid_submit_out(hid))
+				clear_bit(HID_OUT_RUNNING, &hid->iofl);
 
 		spin_unlock_irqrestore(&hid->outlock, flags);
 		return;
@@ -1230,7 +1243,8 @@ void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsign
 	hid->ctrlhead = head;
 
 	if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl))
-		hid_submit_ctrl(hid);
+		if (hid_submit_ctrl(hid))
+			clear_bit(HID_CTRL_RUNNING, &hid->iofl);
 
 	spin_unlock_irqrestore(&hid->ctrllock, flags);
 }
@@ -1282,7 +1296,7 @@ int hid_open(struct hid_device *hid)
 void hid_close(struct hid_device *hid)
 {
 	if (!--hid->open)
-		usb_unlink_urb(hid->urbin);
+		usb_kill_urb(hid->urbin);
 }
 
 /*
@@ -1439,6 +1453,11 @@ void hid_init_reports(struct hid_device *hid)
 #define USB_DEVICE_ID_1_PHIDGETSERVO_20	0x8101
 #define USB_DEVICE_ID_4_PHIDGETSERVO_20	0x8104
 
+#define USB_VENDOR_ID_CODEMERCS		0x07c0
+#define USB_DEVICE_ID_CODEMERCS_IOW40	0x1500
+#define USB_DEVICE_ID_CODEMERCS_IOW24	0x1501
+
+
 static struct hid_blacklist {
 	__u16 idVendor;
 	__u16 idProduct;
@@ -1453,20 +1472,20 @@ static struct hid_blacklist {
 	{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
-
 	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
-
 	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },
@@ -1644,7 +1663,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 			usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, len,
 					 hid_irq_in, hid, interval);
 			hid->urbin->transfer_dma = hid->inbuf_dma;
-			hid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+			hid->urbin->transfer_flags |=(URB_NO_TRANSFER_DMA_MAP | URB_ASYNC_UNLINK);
 		} else {
 			if (hid->urbout)
 				continue;
@@ -1654,7 +1673,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 			usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,
 					 hid_irq_out, hid, interval);
 			hid->urbout->transfer_dma = hid->outbuf_dma;
-			hid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+			hid->urbout->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_ASYNC_UNLINK);
 		}
 	}
 
@@ -1704,8 +1723,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 			     hid->ctrlbuf, 1, hid_ctrl, hid);
 	hid->urbctrl->setup_dma = hid->cr_dma;
 	hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
-	hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP
-				| URB_NO_SETUP_DMA_MAP);
+	hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP | URB_ASYNC_UNLINK);
 
 	return hid;
 
@@ -1731,9 +1749,9 @@ static void hid_disconnect(struct usb_interface *intf)
 		return;
 
 	usb_set_intfdata(intf, NULL);
-	usb_unlink_urb(hid->urbin);
-	usb_unlink_urb(hid->urbout);
-	usb_unlink_urb(hid->urbctrl);
+	usb_kill_urb(hid->urbin);
+	usb_kill_urb(hid->urbout);
+	usb_kill_urb(hid->urbctrl);
 
 	if (hid->claimed & HID_CLAIMED_INPUT)
 		hidinput_disconnect(hid);

drivers/usb/input/hiddev.c

@@ -223,16 +223,6 @@ static int hiddev_fasync(int fd, struct file *file, int on)
 	return retval < 0 ? retval : 0;
 }
 
-/*
- * De-allocate a hiddev structure
- */
-static struct usb_class_driver hiddev_class;
-static void hiddev_cleanup(struct hiddev *hiddev)
-{
-	hiddev_table[hiddev->hid->minor - HIDDEV_MINOR_BASE] = NULL;
-	usb_deregister_dev(hiddev->hid->intf, &hiddev_class);
-	kfree(hiddev);
-}
 
 /*
  * release file op
@@ -253,7 +243,7 @@ static int hiddev_release(struct inode * inode, struct file * file)
 		if (list->hiddev->exist) 
 			hid_close(list->hiddev->hid);
 		else
-			hiddev_cleanup(list->hiddev);
+			kfree(list->hiddev);
 	}
 
 	kfree(list);
@@ -636,16 +626,19 @@ static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 				goto inval;
 
 			field = report->field[uref->field_index];
-			if (uref->usage_index >= field->maxusage)
-				goto inval;
 
-			if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
-				if (uref_multi->num_values >= HID_MAX_USAGES || 
-				    uref->usage_index >= field->maxusage || 
-				   (uref->usage_index + uref_multi->num_values) >= field->maxusage)
+			if (cmd == HIDIOCGCOLLECTIONINDEX) {
+				if (uref->usage_index >= field->maxusage)
 					goto inval;
+			} else if (uref->usage_index >= field->report_count)
+				goto inval;
+
+			else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
+				 (uref_multi->num_values >= HID_MAX_MULTI_USAGES ||
+				  uref->usage_index + uref_multi->num_values >= field->report_count ||
+				  uref->usage_index + uref_multi->num_values < uref->usage_index))
+				goto inval;
 			}
-		}
 
 		switch (cmd) {
 			case HIDIOCGUSAGE:
@@ -795,17 +788,21 @@ int hiddev_connect(struct hid_device *hid)
  * This is where hid.c calls us to disconnect a hiddev device from the
  * corresponding hid device (usually because the usb device has disconnected)
  */
+static struct usb_class_driver hiddev_class;
 void hiddev_disconnect(struct hid_device *hid)
 {
 	struct hiddev *hiddev = hid->hiddev;
 
 	hiddev->exist = 0;
 
+	hiddev_table[hiddev->hid->minor - HIDDEV_MINOR_BASE] = NULL;
+	usb_deregister_dev(hiddev->hid->intf, &hiddev_class);
+
 	if (hiddev->open) {
 		hid_close(hiddev->hid);
 		wake_up_interruptible(&hiddev->wait);
 	} else {
-		hiddev_cleanup(hiddev);
+		kfree(hiddev);
 	}
 }
 

fs/compat_ioctl.c

@@ -115,6 +115,8 @@
 #include <linux/filter.h>
 #include <linux/msdos_fs.h>
 
+#include <linux/hiddev.h>
+
 #undef INCLUDES
 #endif
 

include/asm-ppc/8253pit.h

+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 	1193182UL
+
+#endif

include/asm-ppc64/8253pit.h

+/*
+ * 8253/8254 Programmable Interval Timer
+ */
+
+#ifndef _8253PIT_H
+#define _8253PIT_H
+
+#define PIT_TICK_RATE 	1193182UL
+
+#endif

include/linux/compat_ioctl.h

@@ -735,3 +735,20 @@ COMPATIBLE_IOCTL(SIOCSIWRETRY)
 COMPATIBLE_IOCTL(SIOCGIWRETRY)
 COMPATIBLE_IOCTL(SIOCSIWPOWER)
 COMPATIBLE_IOCTL(SIOCGIWPOWER)
+/* hiddev */
+COMPATIBLE_IOCTL(HIDIOCGVERSION)
+COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
+COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
+COMPATIBLE_IOCTL(HIDIOCGSTRING)
+COMPATIBLE_IOCTL(HIDIOCINITREPORT)
+COMPATIBLE_IOCTL(HIDIOCGREPORT)
+COMPATIBLE_IOCTL(HIDIOCSREPORT)
+COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
+COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
+COMPATIBLE_IOCTL(HIDIOCGUSAGE)
+COMPATIBLE_IOCTL(HIDIOCSUSAGE)
+COMPATIBLE_IOCTL(HIDIOCGUCODE)
+COMPATIBLE_IOCTL(HIDIOCGFLAG)
+COMPATIBLE_IOCTL(HIDIOCSFLAG)
+COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
+COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)

include/linux/hiddev.h

@@ -128,10 +128,11 @@ struct hiddev_usage_ref {
 
 /* hiddev_usage_ref_multi is used for sending multiple bytes to a control.
  * It really manifests itself as setting the value of consecutive usages */
+#define HID_MAX_MULTI_USAGES 1024
 struct hiddev_usage_ref_multi {
 	struct hiddev_usage_ref uref;
 	__u32 num_values;
-	__s32 values[HID_MAX_USAGES];
+	__s32 values[HID_MAX_MULTI_USAGES];
 };
 
 /* FIELD_INDEX_NONE is returned in read() data from the kernel when flags
@@ -212,6 +213,11 @@ struct hiddev_usage_ref_multi {
  * In-kernel definitions.
  */
 
+struct hid_device;
+struct hid_usage;
+struct hid_field;
+struct hid_report;
+
 #ifdef CONFIG_USB_HIDDEV
 int hiddev_connect(struct hid_device *);
 void hiddev_disconnect(struct hid_device *);

include/linux/input.h

@@ -527,6 +527,8 @@ struct input_absinfo {
 #define MSC_SERIAL		0x00
 #define MSC_PULSELED		0x01
 #define MSC_GESTURE		0x02
+#define MSC_RAW			0x03
+#define MSC_SCAN		0x04
 #define MSC_MAX			0x07
 
 /*

include/linux/serio.h

@@ -17,12 +17,17 @@
 #ifdef __KERNEL__
 
 #include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
 
 struct serio {
 	void *private;
-	void *driver;
-	char *name;
-	char *phys;
+	void *port_data;
+
+	char name[32];
+	char phys[32];
+
+	unsigned int manual_bind;
 
 	unsigned short idbus;
 	unsigned short idvendor;
@@ -32,31 +37,43 @@ struct serio {
 	unsigned long type;
 	unsigned long event;
 
+	spinlock_t lock;		/* protects critical sections from port's interrupt handler */
+
 	int (*write)(struct serio *, unsigned char);
 	int (*open)(struct serio *);
 	void (*close)(struct serio *);
 
-	struct serio_dev *dev;
+	struct serio *parent, *child;
+
+	struct serio_driver *drv;	/* accessed from interrupt, must be protected by serio->lock */
+
+	struct device dev;
 
 	struct list_head node;
 };
+#define to_serio_port(d)	container_of(d, struct serio, dev)
 
-struct serio_dev {
+struct serio_driver {
 	void *private;
-	char *name;
+	char *description;
+
+	unsigned int manual_bind;
 
 	void (*write_wakeup)(struct serio *);
 	irqreturn_t (*interrupt)(struct serio *, unsigned char,
 			unsigned int, struct pt_regs *);
-	void (*connect)(struct serio *, struct serio_dev *dev);
+	void (*connect)(struct serio *, struct serio_driver *drv);
 	int  (*reconnect)(struct serio *);
 	void (*disconnect)(struct serio *);
 	void (*cleanup)(struct serio *);
 
+	struct device_driver driver;
+
 	struct list_head node;
 };
+#define to_serio_driver(d)	container_of(d, struct serio_driver, driver)
 
-int serio_open(struct serio *serio, struct serio_dev *dev);
+int serio_open(struct serio *serio, struct serio_driver *drv);
 void serio_close(struct serio *serio);
 void serio_rescan(struct serio *serio);
 void serio_reconnect(struct serio *serio);
@@ -64,12 +81,11 @@ irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned in
 
 void serio_register_port(struct serio *serio);
 void serio_register_port_delayed(struct serio *serio);
-void __serio_register_port(struct serio *serio);
 void serio_unregister_port(struct serio *serio);
 void serio_unregister_port_delayed(struct serio *serio);
-void __serio_unregister_port(struct serio *serio);
-void serio_register_device(struct serio_dev *dev);
-void serio_unregister_device(struct serio_dev *dev);
+
+void serio_register_driver(struct serio_driver *drv);
+void serio_unregister_driver(struct serio_driver *drv);
 
 static __inline__ int serio_write(struct serio *serio, unsigned char data)
 {
@@ -79,18 +95,34 @@ static __inline__ int serio_write(struct serio *serio, unsigned char data)
 		return -1;
 }
 
-static __inline__ void serio_dev_write_wakeup(struct serio *serio)
+static __inline__ void serio_drv_write_wakeup(struct serio *serio)
 {
-	if (serio->dev && serio->dev->write_wakeup)
-		serio->dev->write_wakeup(serio);
+	if (serio->drv && serio->drv->write_wakeup)
+		serio->drv->write_wakeup(serio);
 }
 
 static __inline__ void serio_cleanup(struct serio *serio)
 {
-	if (serio->dev && serio->dev->cleanup)
-		serio->dev->cleanup(serio);
+	if (serio->drv && serio->drv->cleanup)
+		serio->drv->cleanup(serio);
+}
+
+
+/*
+ * Use the following fucntions to protect critical sections in
+ * driver code from port's interrupt handler
+ */
+static __inline__ void serio_pause_rx(struct serio *serio)
+{
+	spin_lock_irq(&serio->lock);
 }
 
+static __inline__ void serio_continue_rx(struct serio *serio)
+{
+	spin_unlock_irq(&serio->lock);
+}
+
+
 #endif
 
 /*