Merge bk://dtor.bkbits.net/input into suse.cz:/home/vojtech/bk/input-dt

Documentation/kernel-parameters.txt

@@ -890,8 +890,8 @@ running once the system is up.
 	psmouse.rate=	[HW,MOUSE] Set desired mouse report rate, in reports
 			per second.
 	psmouse.resetafter=
-			[HW,MOUSE] Try to reset Synaptics Touchpad after so many
-			bad packets (0 = never).
+			[HW,MOUSE] Try to reset the device after so many bad packets
+			(0 = never).
 	psmouse.resolution=
 			[HW,MOUSE] Set desired mouse resolution, in dpi.
 	psmouse.smartscroll=

drivers/input/Kconfig

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

drivers/input/keyboard/atkbd.c

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

drivers/input/mouse/logips2pp.c

@@ -63,7 +63,6 @@ void ps2pp_process_packet(struct psmouse *psmouse)
 		packet[0] &= 0x0f;
 		packet[1] = 0;
 		packet[2] = 0;
-
 	}
 }
 
@@ -76,17 +75,8 @@ void ps2pp_process_packet(struct psmouse *psmouse)
 
 static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned char command)
 {
-	unsigned char d;
-	int i;
-
-	if (psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11))
-		return -1;
-
-	for (i = 6; i >= 0; i -= 2) {
-		d = (command >> i) & 3;
-		if(psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES))
+	if (psmouse_sliced_command(psmouse, command))
 		return -1;
-	}
 
 	if (psmouse_command(psmouse, param, PSMOUSE_CMD_POLL))
 		return -1;
@@ -113,14 +103,11 @@ static void ps2pp_set_smartscroll(struct psmouse *psmouse)
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
 	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
 
-	if (psmouse_smartscroll == 1) 
-		param[0] = 1;
-	else
-	if (psmouse_smartscroll > 2)
-		return;
-
-	/* else leave param[0] == 0 to disable */
+	if (psmouse_smartscroll < 2) {
+		/* 0 - disabled, 1 - enabled */
+		param[0] = psmouse_smartscroll;
 		psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	}
 }
 
 /*
@@ -138,48 +125,47 @@ void ps2pp_set_800dpi(struct psmouse *psmouse)
 	psmouse_command(psmouse, &param, PSMOUSE_CMD_SETRES);
 }
 
+
+static int is_model_in_list(unsigned char model, int *model_list)
+{
+	int i;
+
+	for (i = 0; model_list[i] != -1; i++)
+		if (model == model_list[i])
+			return 1;
+	return 0;
+}
+
 /*
- * Detect the exact model and features of a PS2++ or PS2T++ Logitech mouse or
- * touchpad.
+ * Set up input device's properties based on the detected mouse model.
  */
 
-static int ps2pp_detect_model(struct psmouse *psmouse, unsigned char *param)
+static void ps2pp_set_properties(struct psmouse *psmouse, unsigned char protocol,
+				 unsigned char model, unsigned char buttons)
 {
-	int i;
 	static int logitech_4btn[] = { 12, 40, 41, 42, 43, 52, 73, 80, -1 };
 	static int logitech_wheel[] = { 52, 53, 75, 76, 80, 81, 83, 88, 112, -1 };
-	static int logitech_ps2pp[] = { 12, 13, 40, 41, 42, 43, 50, 51, 52, 53, 73, 75,
-						76, 80, 81, 83, 88, 96, 97, 112, -1 };
 	static int logitech_mx[] = { 61, 112, -1 };
 
 	psmouse->vendor = "Logitech";
-	psmouse->model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
+	psmouse->model = model;
 
-	if (param[1] < 3)
+	if (buttons < 3)
 		clear_bit(BTN_MIDDLE, psmouse->dev.keybit);
-	if (param[1] < 2)
+	if (buttons < 2)
 		clear_bit(BTN_RIGHT, psmouse->dev.keybit);
 
-	psmouse->type = PSMOUSE_PS2;
-
-	for (i = 0; logitech_ps2pp[i] != -1; i++)
-		if (logitech_ps2pp[i] == psmouse->model)
-			psmouse->type = PSMOUSE_PS2PP;
-
-	if (psmouse->type == PSMOUSE_PS2PP) {
+	if (protocol == PSMOUSE_PS2PP) {
 
-		for (i = 0; logitech_4btn[i] != -1; i++)
-			if (logitech_4btn[i] == psmouse->model)
+		if (is_model_in_list(model, logitech_4btn))
 			set_bit(BTN_SIDE, psmouse->dev.keybit);
 
-		for (i = 0; logitech_wheel[i] != -1; i++)
-			if (logitech_wheel[i] == psmouse->model) {
+		if (is_model_in_list(model, logitech_wheel)) {
 			set_bit(REL_WHEEL, psmouse->dev.relbit);
 			psmouse->name = "Wheel Mouse";
 		}
 
-		for (i = 0; logitech_mx[i] != -1; i++)
-			if (logitech_mx[i]  == psmouse->model) {
+		if (is_model_in_list(model, logitech_mx)) {
 			set_bit(BTN_SIDE, psmouse->dev.keybit);
 			set_bit(BTN_EXTRA, psmouse->dev.keybit);
 			set_bit(BTN_BACK, psmouse->dev.keybit);
@@ -187,62 +173,80 @@ static int ps2pp_detect_model(struct psmouse *psmouse, unsigned char *param)
 			set_bit(BTN_TASK, psmouse->dev.keybit);
 			psmouse->name = "MX Mouse";
 		}
+	}
+
+	if (protocol == PSMOUSE_PS2TPP) {
+		set_bit(REL_WHEEL, psmouse->dev.relbit);
+		set_bit(REL_HWHEEL, psmouse->dev.relbit);
+		psmouse->name = "TouchPad 3";
+	}
+}
+
 
 /*
- * Do Logitech PS2++ / PS2T++ magic init.
+ * Logitech magic init. Detect whether the mouse is a Logitech one
+ * and its exact model and try turning on extended protocol for ones
+ * that support it.
  */
 
-		if (psmouse->model == 97) { /* TouchPad 3 */
+int ps2pp_init(struct psmouse *psmouse, int set_properties)
+{
+	static int logitech_ps2pp[] = { 12, 13, 40, 41, 42, 43, 50, 51, 52, 53, 73, 75,
+					76, 80, 81, 83, 88, 96, 97, 112, -1 };
+	unsigned char param[4];
+	unsigned char protocol = PSMOUSE_PS2;
+	unsigned char model, buttons;
+
+	param[0] = 0;
+	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+	param[1] = 0;
+	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
 
-			set_bit(REL_WHEEL, psmouse->dev.relbit);
-			set_bit(REL_HWHEEL, psmouse->dev.relbit);
+	if (param[1] != 0) {
+		model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
+		buttons = param[1];
+/*
+ * Do Logitech PS2++ / PS2T++ magic init.
+ */
+		if (model == 97) { /* Touch Pad 3 */
 
-			param[0] = 0x11; param[1] = 0x04; param[2] = 0x68; /* Unprotect RAM */
+			/* Unprotect RAM */
+			param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
 			psmouse_command(psmouse, param, 0x30d1);
-			param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b; /* Enable features */
+			/* Enable features */
+			param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b;
 			psmouse_command(psmouse, param, 0x30d1);
-			param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3; /* Enable PS2++ */
+			/* Enable PS2++ */
+			param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3;
 			psmouse_command(psmouse, param, 0x30d1);
 
 			param[0] = 0;
 			if (!psmouse_command(psmouse, param, 0x13d1) &&
 			    param[0] == 0x06 && param[1] == 0x00 && param[2] == 0x14) {
-				psmouse->name = "TouchPad 3";
-				return PSMOUSE_PS2TPP;
+				protocol = PSMOUSE_PS2TPP;
 			}
 
-		} else {
+		} else if (is_model_in_list(model, logitech_ps2pp)) {
 
 			param[0] = param[1] = param[2] = 0;
 			ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */
 			ps2pp_cmd(psmouse, param, 0xDB);
 
-			if ((param[0] & 0x78) == 0x48 && (param[1] & 0xf3) == 0xc2 &&
-				(param[2] & 3) == ((param[1] >> 2) & 3)) {
+			if ((param[0] & 0x78) == 0x48 &&
+			    (param[1] & 0xf3) == 0xc2 &&
+			    (param[2] & 0x03) == ((param[1] >> 2) & 3)) {
 				ps2pp_set_smartscroll(psmouse);
-					return PSMOUSE_PS2PP;
-			}
+				protocol = PSMOUSE_PS2PP;
 			}
 		}
 
-	return 0;
-}
-
-/*
- * Logitech magic init.
- */
-int ps2pp_detect(struct psmouse *psmouse)
-{
-	unsigned char param[4];
-
-	param[0] = 0;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
-	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
-	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
-	psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
-	param[1] = 0;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
+		if (set_properties)
+			ps2pp_set_properties(psmouse, protocol, model, buttons);
+	}
 
-	return param[1] != 0 ? ps2pp_detect_model(psmouse, param) : 0;
+	return protocol;
 }
 

drivers/input/mouse/logips2pp.h

@@ -10,8 +10,9 @@
 
 #ifndef _LOGIPS2PP_H
 #define _LOGIPS2PP_H
-struct psmouse;
+
 void ps2pp_process_packet(struct psmouse *psmouse);
 void ps2pp_set_800dpi(struct psmouse *psmouse);
-int ps2pp_detect(struct psmouse *psmouse);
+int ps2pp_init(struct psmouse *psmouse, int set_properties);
+
 #endif

drivers/input/mouse/psmouse-base.c

@@ -43,9 +43,9 @@ int psmouse_smartscroll = 1;
 module_param_named(smartscroll, psmouse_smartscroll, bool, 0);
 MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
 
-unsigned int psmouse_resetafter;
+static unsigned int psmouse_resetafter;
 module_param_named(resetafter, psmouse_resetafter, uint, 0);
-MODULE_PARM_DESC(resetafter, "Reset Synaptics Touchpad after so many bad packets (0 = never).");
+MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
 
 __obsolete_setup("psmouse_noext");
 __obsolete_setup("psmouse_resolution=");
@@ -56,15 +56,22 @@ __obsolete_setup("psmouse_rate=");
 static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2"};
 
 /*
- * psmouse_process_packet() analyzes the PS/2 mouse packet contents and
- * reports relevant events to the input module.
+ * psmouse_process_byte() analyzes the PS/2 data stream and reports
+ * relevant events to the input module once full packet has arrived.
  */
 
-static void psmouse_process_packet(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
 {
 	struct input_dev *dev = &psmouse->dev;
 	unsigned char *packet = psmouse->packet;
 
+	if (psmouse->pktcnt < 3 + (psmouse->type >= PSMOUSE_GENPS))
+		return PSMOUSE_GOOD_DATA;
+
+/*
+ * Full packet accumulated, process it
+ */
+
 	input_regs(dev, regs);
 
 /*
@@ -112,6 +119,8 @@ static void psmouse_process_packet(struct psmouse *psmouse, struct pt_regs *regs
 	input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0);
 
 	input_sync(dev);
+
+	return PSMOUSE_FULL_PACKET;
 }
 
 /*
@@ -123,6 +132,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		unsigned char data, unsigned int flags, struct pt_regs *regs)
 {
 	struct psmouse *psmouse = serio->private;
+	psmouse_ret_t rc;
 
 	if (psmouse->state == PSMOUSE_IGNORE)
 		goto out;
@@ -180,7 +190,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		if (psmouse->pktcnt == 2) {
 			if (psmouse->packet[1] == PSMOUSE_RET_ID) {
 				psmouse->state = PSMOUSE_IGNORE;
-				serio_rescan(serio);
+				serio_reconnect(serio);
 				goto out;
 			}
 			if (psmouse->type == PSMOUSE_SYNAPTICS) {
@@ -193,19 +203,32 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		}
 	}
 
-	if (psmouse->type == PSMOUSE_SYNAPTICS) {
-		/*
-		 * The synaptics driver has its own resync logic,
-		 * so it needs to receive all bytes one at a time.
-		 */
-		synaptics_process_byte(psmouse, regs);
-		goto out;
+	rc = psmouse->protocol_handler(psmouse, regs);
+
+	switch (rc) {
+		case PSMOUSE_BAD_DATA:
+			printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
+				psmouse->name, psmouse->phys, psmouse->pktcnt);
+			psmouse->pktcnt = 0;
+
+			if (++psmouse->out_of_sync == psmouse_resetafter) {
+				psmouse->state = PSMOUSE_IGNORE;
+				printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
+				serio_reconnect(psmouse->serio);
 			}
+			break;
 
-	if (psmouse->pktcnt == 3 + (psmouse->type >= PSMOUSE_GENPS)) {
-		psmouse_process_packet(psmouse, regs);
+		case PSMOUSE_FULL_PACKET:
 			psmouse->pktcnt = 0;
-		goto out;
+			if (psmouse->out_of_sync) {
+				psmouse->out_of_sync = 0;
+				printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
+					psmouse->name, psmouse->phys);
+			}
+			break;
+
+		case PSMOUSE_GOOD_DATA:
+			break;
 	}
 out:
 	return IRQ_HANDLED;
@@ -288,6 +311,30 @@ int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command)
 }
 
 
+/*
+ * psmouse_sliced_command() sends an extended PS/2 command to the mouse
+ * using sliced syntax, understood by advanced devices, such as Logitech
+ * or Synaptics touchpads. The command is encoded as:
+ * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu
+ * is the command.
+ */
+int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
+{
+	int i;
+
+	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11))
+		return -1;
+
+	for (i = 6; i >= 0; i -= 2) {
+		unsigned char d = (command >> i) & 3;
+		if (psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES))
+			return -1;
+	}
+
+	return 0;
+}
+
+
 /*
  * psmouse_reset() resets the mouse into power-on state.
  */
@@ -363,23 +410,23 @@ static int im_explorer_detect(struct psmouse *psmouse)
  * the mouse may have.
  */
 
-static int psmouse_extensions(struct psmouse *psmouse)
+static int psmouse_extensions(struct psmouse *psmouse,
+			      unsigned int max_proto, int set_properties)
 {
 	int synaptics_hardware = 0;
 
-	psmouse->vendor = "Generic";
-	psmouse->name = "Mouse";
-	psmouse->model = 0;
-
 /*
  * Try Synaptics TouchPad
  */
-	if (psmouse_max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse)) {
+	if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse)) {
 		synaptics_hardware = 1;
+
+		if (set_properties) {
 			psmouse->vendor = "Synaptics";
 			psmouse->name = "TouchPad";
+		}
 
-		if (psmouse_max_proto > PSMOUSE_IMEX) {
+		if (max_proto > PSMOUSE_IMEX) {
 			if (synaptics_init(psmouse) == 0)
 				return PSMOUSE_SYNAPTICS;
 /*
@@ -387,7 +434,7 @@ static int psmouse_extensions(struct psmouse *psmouse)
  * Unfortunately Logitech/Genius probes confuse some firmware versions so
  * we'll have to skip them.
  */
-			psmouse_max_proto = PSMOUSE_IMEX;
+			max_proto = PSMOUSE_IMEX;
 		}
 /*
  * Make sure that touchpad is in relative mode, gestures (taps) are enabled
@@ -395,35 +442,45 @@ static int psmouse_extensions(struct psmouse *psmouse)
 		synaptics_reset(psmouse);
 	}
 
-	if (psmouse_max_proto > PSMOUSE_IMEX && genius_detect(psmouse)) {
+	if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse)) {
+
+		if (set_properties) {
 			set_bit(BTN_EXTRA, psmouse->dev.keybit);
 			set_bit(BTN_SIDE, psmouse->dev.keybit);
 			set_bit(REL_WHEEL, psmouse->dev.relbit);
-
 			psmouse->vendor = "Genius";
 			psmouse->name = "Wheel Mouse";
+		}
+
 		return PSMOUSE_GENPS;
 	}
 
-	if (psmouse_max_proto > PSMOUSE_IMEX) {
-		int type = ps2pp_detect(psmouse);
-		if (type)
+	if (max_proto > PSMOUSE_IMEX) {
+		int type = ps2pp_init(psmouse, set_properties);
+		if (type > PSMOUSE_PS2)
 			return type;
 	}
 
-	if (psmouse_max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse)) {
+	if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse)) {
+
+		if (set_properties) {
 			set_bit(REL_WHEEL, psmouse->dev.relbit);
+			if (!psmouse->name)
+				psmouse->name = "Wheel Mouse";
+		}
+
+		if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse)) {
 
-		if (psmouse_max_proto >= PSMOUSE_IMEX &&
-					im_explorer_detect(psmouse)) {
+			if (!set_properties) {
 				set_bit(BTN_SIDE, psmouse->dev.keybit);
 				set_bit(BTN_EXTRA, psmouse->dev.keybit);
-
+				if (!psmouse->name)
 					psmouse->name = "Explorer Mouse";
+			}
+
 			return PSMOUSE_IMEX;
 		}
 
-		psmouse->name = "Wheel Mouse";
 		return PSMOUSE_IMPS;
 	}
 
@@ -473,12 +530,7 @@ static int psmouse_probe(struct psmouse *psmouse)
 	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_RESET_DIS))
 		printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", psmouse->serio->phys);
 
-/*
- * And here we try to determine if it has any extensions over the
- * basic PS/2 3-button mouse.
- */
-
-	return psmouse->type = psmouse_extensions(psmouse);
+	return 0;
 }
 
 /*
@@ -616,7 +668,6 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 	psmouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 	psmouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
 	psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
-
 	psmouse->state = PSMOUSE_CMD_MODE;
 	psmouse->serio = serio;
 	psmouse->dev.private = psmouse;
@@ -628,13 +679,21 @@ static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
 		return;
 	}
 
-	if (psmouse_probe(psmouse) <= 0) {
+	if (psmouse_probe(psmouse) < 0) {
 		serio_close(serio);
 		kfree(psmouse);
 		serio->private = NULL;
 		return;
 	}
 
+	psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
+	if (!psmouse->vendor)
+		psmouse->vendor = "Generic";
+	if (!psmouse->name)
+		psmouse->name = "Mouse";
+	if (!psmouse->protocol_handler)
+		psmouse->protocol_handler = psmouse_process_byte;
+
 	sprintf(psmouse->devname, "%s %s %s",
 		psmouse_protocols[psmouse->type], psmouse->vendor, psmouse->name);
 	sprintf(psmouse->phys, "%s/input0",
@@ -668,27 +727,24 @@ static int psmouse_reconnect(struct serio *serio)
 {
 	struct psmouse *psmouse = serio->private;
 	struct serio_dev *dev = serio->dev;
-	int old_type;
 
 	if (!dev || !psmouse) {
 		printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
 		return -1;
 	}
 
-	old_type = psmouse->type;
-
 	psmouse->state = PSMOUSE_CMD_MODE;
-	psmouse->type = psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = 0;
+	psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = psmouse->out_of_sync = 0;
 	if (psmouse->reconnect) {
 	       if (psmouse->reconnect(psmouse))
 			return -1;
-	} else if (psmouse_probe(psmouse) != old_type)
+	} else if (psmouse_probe(psmouse) < 0 ||
+		   psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
 		return -1;
 
 	/* ok, the device type (and capabilities) match the old one,
 	 * we can continue using it, complete intialization
 	 */
-	psmouse->type = old_type;
 	psmouse_initialize(psmouse);
 
 	if (psmouse->ptport) {

drivers/input/mouse/psmouse.h

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

drivers/input/mouse/synaptics.c

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

drivers/input/mouse/synaptics.h

@@ -9,7 +9,6 @@
 #ifndef _SYNAPTICS_H
 #define _SYNAPTICS_H
 
-extern void synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs);
 extern int synaptics_detect(struct psmouse *psmouse);
 extern int synaptics_init(struct psmouse *psmouse);
 extern void synaptics_reset(struct psmouse *psmouse);
@@ -44,13 +43,14 @@ extern void synaptics_reset(struct psmouse *psmouse);
 
 /* synaptics capability bits */
 #define SYN_CAP_EXTENDED(c)		((c) & (1 << 23))
+#define SYN_CAP_MIDDLE_BUTTON(c)	((c) & (1 << 18))
 #define SYN_CAP_PASS_THROUGH(c)		((c) & (1 << 7))
 #define SYN_CAP_SLEEP(c)		((c) & (1 << 4))
 #define SYN_CAP_FOUR_BUTTON(c)		((c) & (1 << 3))
 #define SYN_CAP_MULTIFINGER(c)		((c) & (1 << 1))
 #define SYN_CAP_PALMDETECT(c)		((c) & (1 << 0))
 #define SYN_CAP_VALID(c)		((((c) & 0x00ff00) >> 8) == 0x47)
-#define SYN_EXT_CAP_REQUESTS(c)		((((c) & 0x700000) >> 20) == 1)
+#define SYN_EXT_CAP_REQUESTS(c)		(((c) & 0x700000) >> 20)
 #define SYN_CAP_MULTI_BUTTON_NO(ec)	(((ec) & 0x00f000) >> 12)
 
 /* synaptics modes query bits */
@@ -86,18 +86,12 @@ struct synaptics_hw_state {
 	int y;
 	int z;
 	int w;
-	int left;
-	int right;
-	int up;
-	int down;
-	int b0;
-	int b1;
-	int b2;
-	int b3;
-	int b4;
-	int b5;
-	int b6;
-	int b7;
+	unsigned int left:1;
+	unsigned int right:1;
+	unsigned int middle:1;
+	unsigned int up:1;
+	unsigned int down:1;
+	unsigned char ext_buttons;
 };
 
 struct synaptics_data {
@@ -108,7 +102,6 @@ struct synaptics_data {
 	unsigned long int identity;		/* Identification */
 
 	/* Data for normal processing */
-	unsigned int out_of_sync;		/* # of packets out of sync */
 	int old_w;				/* Previous w value */
 	unsigned char pkt_type;			/* packet type - old, new, etc */
 };

drivers/input/serio/parkbd.c

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

drivers/input/serio/q40kbd.c

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

drivers/input/serio/serio.c

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

drivers/input/serio/serport.c

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

drivers/input/touchscreen/gunze.c

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

drivers/input/touchscreen/h3600_ts_input.c

@@ -397,17 +397,12 @@ static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
 		kfree(ts);
 		return;
 	}
+
 	/* Now we have things going we setup our input device */
 	ts->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_LED) | BIT(EV_PWR);
-	ts->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
 	ts->dev.ledbit[0] = BIT(LED_SLEEP);
-
-	ts->dev.absmin[ABS_X] = 60;   ts->dev.absmin[ABS_Y] = 35;
-	ts->dev.absmax[ABS_X] = 985; ts->dev.absmax[ABS_Y] = 1024;
-	ts->dev.absfuzz[ABS_X] = 0; ts->dev.absfuzz[ABS_Y] = 0;
-
-	ts->serio = serio;
-	serio->private = ts;
+	input_set_abs_params(&ts->dev, ABS_X, 60, 985, 0, 0);
+	input_set_abs_params(&ts->dev, ABS_Y, 35, 1024, 0, 0);
 
 	set_bit(KEY_RECORD, ts->dev.keybit);
 	set_bit(KEY_Q, ts->dev.keybit);
@@ -422,6 +417,9 @@ static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
 	ts->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
 	ts->dev.keybit[LONG(KEY_SUSPEND)] |= BIT(KEY_SUSPEND);
 
+	ts->serio = serio;
+	serio->private = ts;
+
 	sprintf(ts->phys, "%s/input0", serio->phys);
 
        	ts->dev.event = h3600ts_event;

include/linux/input.h

@@ -749,8 +749,6 @@ struct ff_effect {
 #define INPUT_KEYCODE(dev, scancode) ((dev->keycodesize == 1) ? ((u8*)dev->keycode)[scancode] : \
 	((dev->keycodesize == 2) ? ((u16*)dev->keycode)[scancode] : (((u32*)dev->keycode)[scancode])))
 
-#define init_input_dev(dev)	do { INIT_LIST_HEAD(&((dev)->h_list)); INIT_LIST_HEAD(&((dev)->node)); } while (0)
-
 #define SET_INPUT_KEYCODE(dev, scancode, val)			\
 		({	unsigned __old;				\
 		switch (dev->keycodesize) {			\
@@ -915,6 +913,12 @@ struct input_handle {
 #define to_handle(n) container_of(n,struct input_handle,d_node)
 #define to_handle_h(n) container_of(n,struct input_handle,h_node)
 
+static inline void init_input_dev(struct input_dev *dev)
+{
+	INIT_LIST_HEAD(&dev->h_list);
+	INIT_LIST_HEAD(&dev->node);
+}
+
 void input_register_device(struct input_dev *);
 void input_unregister_device(struct input_dev *);
 
@@ -932,14 +936,51 @@ int input_flush_device(struct input_handle* handle, struct file* file);
 
 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
 
-#define input_report_key(a,b,c) input_event(a, EV_KEY, b, !!(c))
-#define input_report_rel(a,b,c) input_event(a, EV_REL, b, c)
-#define input_report_abs(a,b,c) input_event(a, EV_ABS, b, c)
-#define input_report_ff(a,b,c)	input_event(a, EV_FF, b, c)
-#define input_report_ff_status(a,b,c)	input_event(a, EV_FF_STATUS, b, c)
-
-#define input_regs(a,b)		do { (a)->regs = (b); } while (0)
-#define input_sync(a)		do { input_event(a, EV_SYN, SYN_REPORT, 0); (a)->regs = NULL; } while (0)
+static inline void input_report_key(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_KEY, code, !!value);
+}
+
+static inline void input_report_rel(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_REL, code, value);
+}
+
+static inline void input_report_abs(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_ABS, code, value);
+}
+
+static inline void input_report_ff(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_FF, code, value);
+}
+
+static inline void input_report_ff_status(struct input_dev *dev, unsigned int code, int value)
+{
+	input_event(dev, EV_FF_STATUS, code, value);
+}
+
+static inline void input_regs(struct input_dev *dev, struct pt_regs *regs)
+{
+	dev->regs = regs;
+}
+
+static inline void input_sync(struct input_dev *dev)
+{
+	input_event(dev, EV_SYN, SYN_REPORT, 0);
+	dev->regs = NULL;
+}
+
+static inline void input_set_abs_params(struct input_dev *dev, int axis, int min, int max, int fuzz, int flat)
+{
+	dev->absmin[axis] = min;
+	dev->absmax[axis] = max;
+	dev->absfuzz[axis] = fuzz;
+	dev->absflat[axis] = flat;
+
+	dev->absbit[LONG(axis)] |= BIT(axis);
+}
 
 extern struct class_simple *input_class;