X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Finput%2Fmouse%2Fpsmouse-base.c;h=019034b21a0bc91d3f0f941b05e7e495b6b69a08;hb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;hp=3d4a3006011cf91370d08b0b79ac29cc93dd1de2;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 3d4a30060..019034b21 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -2,6 +2,7 @@
  * PS/2 mouse driver
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2003-2004 Dmitry Torokhov
  */
 
 /*
@@ -18,34 +19,47 @@
 #include <linux/input.h>
 #include <linux/serio.h>
 #include <linux/init.h>
+#include <linux/libps2.h>
 #include "psmouse.h"
 #include "synaptics.h"
 #include "logips2pp.h"
+#include "alps.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;
 static unsigned int psmouse_max_proto = -1U;
-module_param_named(proto, psmouse_proto, charp, 0);
-MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps). Useful for KVM switches.");
-
-int psmouse_resolution = 200;
-module_param_named(resolution, psmouse_resolution, uint, 0);
+static int psmouse_set_maxproto(const char *val, struct kernel_param *kp);
+static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp);
+static char *psmouse_proto_abbrev[] = { NULL, "bare", NULL, NULL, NULL, "imps", "exps", NULL, NULL, NULL };
+#define param_check_proto_abbrev(name, p)	__param_check(name, p, unsigned int)
+#define param_set_proto_abbrev			psmouse_set_maxproto
+#define param_get_proto_abbrev			psmouse_get_maxproto
+module_param_named(proto, psmouse_max_proto, proto_abbrev, 0644);
+MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches.");
+
+static unsigned int psmouse_resolution = 200;
+module_param_named(resolution, psmouse_resolution, uint, 0644);
 MODULE_PARM_DESC(resolution, "Resolution, in dpi.");
 
-unsigned int psmouse_rate = 100;
-module_param_named(rate, psmouse_rate, uint, 0);
+static unsigned int psmouse_rate = 100;
+module_param_named(rate, psmouse_rate, uint, 0644);
 MODULE_PARM_DESC(rate, "Report rate, in reports per second.");
 
-int psmouse_smartscroll = 1;
-module_param_named(smartscroll, psmouse_smartscroll, bool, 0);
+static unsigned int psmouse_smartscroll = 1;
+module_param_named(smartscroll, psmouse_smartscroll, bool, 0644);
 MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
 
-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).");
+static unsigned int psmouse_resetafter;
+module_param_named(resetafter, psmouse_resetafter, uint, 0644);
+MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
+
+PSMOUSE_DEFINE_ATTR(rate);
+PSMOUSE_DEFINE_ATTR(resolution);
+PSMOUSE_DEFINE_ATTR(resetafter);
 
 __obsolete_setup("psmouse_noext");
 __obsolete_setup("psmouse_resolution=");
@@ -53,26 +67,26 @@ __obsolete_setup("psmouse_smartscroll=");
 __obsolete_setup("psmouse_resetafter=");
 __obsolete_setup("psmouse_rate=");
 
-static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2"};
+static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "ThinkPS/2", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2", "AlpsPS/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;
 
-	input_regs(dev, regs);
+	if (psmouse->pktcnt < psmouse->pktsize)
+		return PSMOUSE_GOOD_DATA;
 
 /*
- * The PS2++ protocol is a little bit complex
+ * Full packet accumulated, process it
  */
 
-	if (psmouse->type == PSMOUSE_PS2PP || psmouse->type == PSMOUSE_PS2TPP)
-		ps2pp_process_packet(psmouse);
+	input_regs(dev, regs);
 
 /*
  * Scroll wheel on IntelliMice, scroll buttons on NetMice
@@ -100,6 +114,15 @@ static void psmouse_process_packet(struct psmouse *psmouse, struct pt_regs *regs
 		input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
 	}
 
+/*
+ * Extra button on ThinkingMouse
+ */
+	if (psmouse->type == PSMOUSE_THINKPS) {
+		input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
+		/* Without this bit of weirdness moving up gives wildly high Y changes. */
+		packet[1] |= (packet[0] & 0x40) << 1;
+	}
+
 /*
  * Generic PS/2 Mouse
  */
@@ -112,6 +135,8 @@ 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;
 }
 
 /*
@@ -122,7 +147,8 @@ static void psmouse_process_packet(struct psmouse *psmouse, struct pt_regs *regs
 static irqreturn_t psmouse_interrupt(struct serio *serio,
 		unsigned char data, unsigned int flags, struct pt_regs *regs)
 {
-	struct psmouse *psmouse = serio->private;
+	struct psmouse *psmouse = serio_get_drvdata(serio);
+	psmouse_ret_t rc;
 
 	if (psmouse->state == PSMOUSE_IGNORE)
 		goto out;
@@ -132,36 +158,20 @@ 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;
+		ps2_cmd_aborted(&psmouse->ps2dev);
 		goto out;
 	}
 
-	if (psmouse->acking) {
-		switch (data) {
-			case PSMOUSE_RET_ACK:
-				psmouse->ack = 1;
-				break;
-			case PSMOUSE_RET_NAK:
-				psmouse->ack = -1;
-				break;
-			default:
-				psmouse->ack = 1;	/* Workaround for mice which don't ACK the Get ID command */
-				if (psmouse->cmdcnt)
-					psmouse->cmdbuf[--psmouse->cmdcnt] = data;
-				break;
-		}
-		psmouse->acking = 0;
-		goto out;
-	}
+	if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK))
+		if  (ps2_handle_ack(&psmouse->ps2dev, data))
+			goto out;
 
-	if (psmouse->cmdcnt) {
-		psmouse->cmdbuf[--psmouse->cmdcnt] = data;
+	if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD))
+		if  (ps2_handle_response(&psmouse->ps2dev, data))
+			goto out;
+
+	if (psmouse->state == PSMOUSE_INITIALIZING)
 		goto out;
-	}
 
 	if (psmouse->state == PSMOUSE_ACTIVATED &&
 	    psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
@@ -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) {
@@ -193,97 +203,58 @@ 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);
 
-	if (psmouse->pktcnt == 3 + (psmouse->type >= PSMOUSE_GENPS)) {
-		psmouse_process_packet(psmouse, regs);
-		psmouse->pktcnt = 0;
-		goto out;
-	}
-out:
-	return IRQ_HANDLED;
-}
+	switch (rc) {
+		case PSMOUSE_BAD_DATA:
+			printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
+				psmouse->name, psmouse->phys, psmouse->pktcnt);
+			psmouse->pktcnt = 0;
 
-/*
- * psmouse_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.
- */
+			if (++psmouse->out_of_sync == psmouse->resetafter) {
+				psmouse->state = PSMOUSE_IGNORE;
+				printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
+				serio_reconnect(psmouse->ps2dev.serio);
+			}
+			break;
 
-static int psmouse_sendbyte(struct psmouse *psmouse, unsigned char byte)
-{
-	int timeout = 10000; /* 100 msec */
-	psmouse->ack = 0;
-	psmouse->acking = 1;
+		case PSMOUSE_FULL_PACKET:
+			psmouse->pktcnt = 0;
+			if (psmouse->out_of_sync) {
+				psmouse->out_of_sync = 0;
+				printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
+					psmouse->name, psmouse->phys);
+			}
+			break;
 
-	if (serio_write(psmouse->serio, byte)) {
-		psmouse->acking = 0;
-		return -1;
+		case PSMOUSE_GOOD_DATA:
+			break;
 	}
-
-	while (!psmouse->ack && timeout--) udelay(10);
-
-	return -(psmouse->ack <= 0);
+out:
+	return IRQ_HANDLED;
 }
 
+
 /*
- * psmouse_command() sends a command and its parameters to the mouse,
- * then waits for the response and puts it in the param array.
+ * 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_command(struct psmouse *psmouse, unsigned char *param, int command)
+int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
 {
-	int timeout = 500000; /* 500 msec */
-	int send = (command >> 12) & 0xf;
-	int receive = (command >> 8) & 0xf;
 	int i;
 
-	psmouse->cmdcnt = receive;
-
-	if (command == PSMOUSE_CMD_RESET_BAT)
-                timeout = 4000000; /* 4 sec */
-
-	/* initialize cmdbuf with preset values from param */
-	if (receive)
-	   for (i = 0; i < receive; i++)
-		psmouse->cmdbuf[(receive - 1) - i] = param[i];
-
-	if (command & 0xff)
-		if (psmouse_sendbyte(psmouse, command & 0xff))
-			return (psmouse->cmdcnt = 0) - 1;
-
-	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 */
-
-		if (psmouse->cmdcnt == 1 && command == PSMOUSE_CMD_GETID &&
-		    psmouse->cmdbuf[1] != 0xab && psmouse->cmdbuf[1] != 0xac) {
-			psmouse->cmdcnt = 0;
-			break;
-		}
+	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
+		return -1;
 
-		udelay(1);
+	for (i = 6; i >= 0; i -= 2) {
+		unsigned char d = (command >> i) & 3;
+		if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES))
+			return -1;
 	}
 
-	for (i = 0; i < receive; i++)
-		param[i] = psmouse->cmdbuf[(receive - 1) - i];
-
-	if (psmouse->cmdcnt)
-		return (psmouse->cmdcnt = 0) - 1;
-
 	return 0;
 }
 
@@ -295,7 +266,7 @@ int psmouse_reset(struct psmouse *psmouse)
 {
 	unsigned char param[2];
 
-	if (psmouse_command(psmouse, param, PSMOUSE_CMD_RESET_BAT))
+	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT))
 		return -1;
 
 	if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID)
@@ -308,54 +279,138 @@ int psmouse_reset(struct psmouse *psmouse)
 /*
  * Genius NetMouse magic init.
  */
-static int genius_detect(struct psmouse *psmouse)
+static int genius_detect(struct psmouse *psmouse, int set_properties)
 {
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param[4];
 
 	param[0] = 3;
-	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);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+	ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE11);
+	ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE11);
+	ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE11);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
+
+	if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55)
+		return -1;
+
+	if (set_properties) {
+		set_bit(BTN_EXTRA, psmouse->dev.keybit);
+		set_bit(BTN_SIDE, psmouse->dev.keybit);
+		set_bit(REL_WHEEL, psmouse->dev.relbit);
 
-	return param[0] == 0x00 && param[1] == 0x33 && param[2] == 0x55;
+		psmouse->vendor = "Genius";
+		psmouse->name = "Wheel Mouse";
+		psmouse->pktsize = 4;
+	}
+
+	return 0;
 }
 
 /*
  * IntelliMouse magic init.
  */
-static int intellimouse_detect(struct psmouse *psmouse)
+static int intellimouse_detect(struct psmouse *psmouse, int set_properties)
 {
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param[2];
 
 	param[0] = 200;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
 	param[0] = 100;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
 	param[0] =  80;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_GETID);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+	if (param[0] != 3)
+		return -1;
+
+	if (set_properties) {
+		set_bit(REL_WHEEL, psmouse->dev.relbit);
+
+		if (!psmouse->vendor) psmouse->vendor = "Generic";
+		if (!psmouse->name) psmouse->name = "Wheel Mouse";
+		psmouse->pktsize = 4;
+	}
 
-	return param[0] == 3;
+	return 0;
 }
 
 /*
  * Try IntelliMouse/Explorer magic init.
  */
-static int im_explorer_detect(struct psmouse *psmouse)
+static int im_explorer_detect(struct psmouse *psmouse, int set_properties)
 {
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param[2];
 
+	intellimouse_detect(psmouse, 0);
+
 	param[0] = 200;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
 	param[0] = 200;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
 	param[0] =  80;
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
-	psmouse_command(psmouse, param, PSMOUSE_CMD_GETID);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+	if (param[0] != 4)
+		return -1;
+
+	if (set_properties) {
+		set_bit(REL_WHEEL, psmouse->dev.relbit);
+		set_bit(BTN_SIDE, psmouse->dev.keybit);
+		set_bit(BTN_EXTRA, psmouse->dev.keybit);
+
+		if (!psmouse->vendor) psmouse->vendor = "Generic";
+		if (!psmouse->name) psmouse->name = "Explorer Mouse";
+		psmouse->pktsize = 4;
+	}
+
+	return 0;
+}
+
+/*
+ * Kensington ThinkingMouse / ExpertMouse magic init.
+ */
+static int thinking_detect(struct psmouse *psmouse, int set_properties)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	unsigned char param[2];
+	unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
+	int i;
+
+	param[0] = 10;
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+	param[0] = 0;
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+	for (i = 0; seq[i]; i++)
+		ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
 
-	return param[0] == 4;
+	if (param[0] != 2)
+		return -1;
+
+	if (set_properties) {
+		set_bit(BTN_EXTRA, psmouse->dev.keybit);
+
+		psmouse->vendor = "Kensington";
+		psmouse->name = "ThinkingMouse";
+	}
+
+	return 0;
+}
+
+/*
+ * Bare PS/2 protocol "detection". Always succeeds.
+ */
+static int ps2bare_detect(struct psmouse *psmouse, int set_properties)
+{
+	if (!psmouse->vendor) psmouse->vendor = "Generic";
+	if (!psmouse->name) psmouse->name = "Mouse";
+
+	return 0;
 }
 
 /*
@@ -363,31 +418,34 @@ 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 Kensington ThinkingMouse (we try first, because synaptics probe
+ * upsets the thinkingmouse).
+ */
+
+	if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0)
+		return PSMOUSE_THINKPS;
 
 /*
  * Try Synaptics TouchPad
  */
-	if (psmouse_max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse)) {
+	if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
 		synaptics_hardware = 1;
-		psmouse->vendor = "Synaptics";
-		psmouse->name = "TouchPad";
 
-		if (psmouse_max_proto > PSMOUSE_IMEX) {
-			if (synaptics_init(psmouse) == 0)
+		if (max_proto > PSMOUSE_IMEX) {
+			if (!set_properties || synaptics_init(psmouse) == 0)
 				return PSMOUSE_SYNAPTICS;
 /*
  * Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
  * Unfortunately Logitech/Genius probes confuse some firmware versions so
  * we'll have to skip them.
  */
-			psmouse_max_proto = PSMOUSE_IMEX;
+			max_proto = PSMOUSE_IMEX;
 		}
 /*
  * Make sure that touchpad is in relative mode, gestures (taps) are enabled
@@ -395,42 +453,45 @@ static int psmouse_extensions(struct psmouse *psmouse)
 		synaptics_reset(psmouse);
 	}
 
-	if (psmouse_max_proto > PSMOUSE_IMEX && genius_detect(psmouse)) {
-		set_bit(BTN_EXTRA, psmouse->dev.keybit);
-		set_bit(BTN_SIDE, psmouse->dev.keybit);
-		set_bit(REL_WHEEL, psmouse->dev.relbit);
+/*
+ * Try ALPS TouchPad
+ */
+	if (max_proto > PSMOUSE_IMEX) {
+		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+		if (alps_detect(psmouse, set_properties) == 0) {
+			if (!set_properties || alps_init(psmouse) == 0)
+				return PSMOUSE_ALPS;
+/*
+ * Init failed, try basic relative protocols
+ */
+			max_proto = PSMOUSE_IMEX;
+		}
+	}
 
-		psmouse->vendor = "Genius";
-		psmouse->name = "Wheel Mouse";
+	if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse, set_properties) == 0)
 		return PSMOUSE_GENPS;
-	}
 
-	if (psmouse_max_proto > PSMOUSE_IMEX) {
-		int type = ps2pp_detect(psmouse);
-		if (type)
-			return type;
-	}
+	if (max_proto > PSMOUSE_IMEX && ps2pp_init(psmouse, set_properties) == 0)
+		return PSMOUSE_PS2PP;
 
-	if (psmouse_max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse)) {
-		set_bit(REL_WHEEL, psmouse->dev.relbit);
-
-		if (psmouse_max_proto >= PSMOUSE_IMEX &&
-					im_explorer_detect(psmouse)) {
-			set_bit(BTN_SIDE, psmouse->dev.keybit);
-			set_bit(BTN_EXTRA, psmouse->dev.keybit);
+/*
+ * Reset to defaults in case the device got confused by extended
+ * protocol probes.
+ */
+	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
 
-			psmouse->name = "Explorer Mouse";
-			return PSMOUSE_IMEX;
-		}
+	if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
+		return PSMOUSE_IMEX;
 
-		psmouse->name = "Wheel Mouse";
+	if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0)
 		return PSMOUSE_IMPS;
-	}
 
 /*
  * Okay, all failed, we have a standard mouse here. The number of the buttons
  * is still a question, though. We assume 3.
  */
+	ps2bare_detect(psmouse, set_properties);
+
 	if (synaptics_hardware) {
 /*
  * We detected Synaptics hardware but it did not respond to IMPS/2 probes.
@@ -439,7 +500,7 @@ static int psmouse_extensions(struct psmouse *psmouse)
  * extensions.
  */
 		psmouse_reset(psmouse);
-		psmouse_command(psmouse, NULL, PSMOUSE_CMD_RESET_DIS);
+		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
 	}
 
 	return PSMOUSE_PS2;
@@ -451,72 +512,61 @@ static int psmouse_extensions(struct psmouse *psmouse)
 
 static int psmouse_probe(struct psmouse *psmouse)
 {
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param[2];
 
 /*
  * First, we check if it's a mouse. It should send 0x00 or 0x03
  * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
+ * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
+ * ID queries, probably due to a firmware bug.
  */
 
 	param[0] = 0xa5;
-
-	if (psmouse_command(psmouse, param, PSMOUSE_CMD_GETID))
+	if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
 		return -1;
 
-	if (param[0] != 0x00 && param[0] != 0x03 && param[0] != 0x04)
+	if (param[0] != 0x00 && param[0] != 0x03 &&
+	    param[0] != 0x04 && param[0] != 0xff)
 		return -1;
 
 /*
  * Then we reset and disable the mouse so that it doesn't generate events.
  */
 
-	if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_RESET_DIS))
-		printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", psmouse->serio->phys);
+	if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
+		printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->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;
 }
 
 /*
  * Here we set the mouse resolution.
  */
 
-static void psmouse_set_resolution(struct psmouse *psmouse)
+void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
 {
-	unsigned char param[1];
+	unsigned char params[] = { 0, 1, 2, 2, 3 };
 
-	if (psmouse->type == PSMOUSE_PS2PP && psmouse_resolution > 400) {
-		ps2pp_set_800dpi(psmouse);
-		return;
-	}
-
-	if (!psmouse_resolution || psmouse_resolution >= 200)
-		param[0] = 3;
-	else if (psmouse_resolution >= 100)
-		param[0] = 2;
-	else if (psmouse_resolution >= 50)
-		param[0] = 1;
-	else if (psmouse_resolution)
-		param[0] = 0;
+	if (resolution == 0 || resolution > 200)
+		resolution = 200;
 
-        psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+	ps2_command(&psmouse->ps2dev, &params[resolution / 50], PSMOUSE_CMD_SETRES);
+	psmouse->resolution = 25 << params[resolution / 50];
 }
 
 /*
  * Here we set the mouse report rate.
  */
 
-static void psmouse_set_rate(struct psmouse *psmouse)
+static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
 {
 	unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
 	int i = 0;
 
-	while (rates[i] > psmouse_rate) i++;
-	psmouse_command(psmouse, rates + i, PSMOUSE_CMD_SETRATE);
+	while (rates[i] > rate) i++;
+	ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
+	psmouse->rate = rates[i];
 }
 
 /*
@@ -525,23 +575,36 @@ static void psmouse_set_rate(struct psmouse *psmouse)
 
 static void psmouse_initialize(struct psmouse *psmouse)
 {
-	unsigned char param[2];
+/*
+ * We set the mouse into streaming mode.
+ */
+
+	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM);
 
 /*
  * We set the mouse report rate, resolution and scaling.
  */
 
 	if (psmouse_max_proto != PSMOUSE_PS2) {
-		psmouse_set_rate(psmouse);
-		psmouse_set_resolution(psmouse);
-		psmouse_command(psmouse,  NULL, PSMOUSE_CMD_SETSCALE11);
+		psmouse->set_rate(psmouse, psmouse->rate);
+		psmouse->set_resolution(psmouse, psmouse->resolution);
+		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
 	}
+}
 
 /*
- * We set the mouse into streaming mode.
+ * 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.
  */
 
-	psmouse_command(psmouse, param, PSMOUSE_CMD_SETSTREAM);
+static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+	serio_pause_rx(psmouse->ps2dev.serio);
+	psmouse->state = new_state;
+	psmouse->pktcnt = psmouse->out_of_sync = 0;
+	psmouse->ps2dev.flags = 0;
+	serio_continue_rx(psmouse->ps2dev.serio);
 }
 
 /*
@@ -550,19 +613,36 @@ static void psmouse_initialize(struct psmouse *psmouse)
 
 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);
+	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
+		printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n",
+			psmouse->ps2dev.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 (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+		printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n",
+			psmouse->ps2dev.serio->phys);
+
+	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+}
+
+
 /*
  * psmouse_cleanup() resets the mouse into power-on state.
  */
 
 static void psmouse_cleanup(struct serio *serio)
 {
-	struct psmouse *psmouse = serio->private;
+	struct psmouse *psmouse = serio_get_drvdata(serio);
 
 	psmouse_reset(psmouse);
 }
@@ -573,25 +653,29 @@ 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;
+	device_remove_file(&serio->dev, &psmouse_attr_rate);
+	device_remove_file(&serio->dev, &psmouse_attr_resolution);
+	device_remove_file(&serio->dev, &psmouse_attr_resetafter);
 
-	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;
+	psmouse = serio_get_drvdata(serio);
+	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+	if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+		parent = serio_get_drvdata(serio->parent);
+		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);
+	serio_set_drvdata(serio, NULL);
 	kfree(psmouse);
 }
 
@@ -599,46 +683,66 @@ 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 int psmouse_connect(struct serio *serio, struct serio_driver *drv)
 {
-	struct psmouse *psmouse;
+	struct psmouse *psmouse, *parent = NULL;
+	int retval;
 
-	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->id.type == SERIO_PS_PSTHRU) {
+		parent = serio_get_drvdata(serio->parent);
+		psmouse_deactivate(parent);
+	}
 
-	if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL)))
-		return;
+	if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL))) {
+		retval = -ENOMEM;
+		goto out;
+	}
 
 	memset(psmouse, 0, sizeof(struct psmouse));
 
-	init_input_dev(&psmouse->dev);
+	ps2_init(&psmouse->ps2dev, serio);
+	sprintf(psmouse->phys, "%s/input0", serio->phys);
 	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->dev.dev = &serio->dev;
+	psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
 
-	serio->private = psmouse;
-	if (serio_open(serio, dev)) {
+	serio_set_drvdata(serio, psmouse);
+
+	retval = serio_open(serio, drv);
+	if (retval) {
+		serio_set_drvdata(serio, NULL);
 		kfree(psmouse);
-		serio->private = NULL;
-		return;
+		goto out;
 	}
 
-	if (psmouse_probe(psmouse) <= 0) {
+	if (psmouse_probe(psmouse) < 0) {
 		serio_close(serio);
+		serio_set_drvdata(serio, NULL);
 		kfree(psmouse);
-		serio->private = NULL;
-		return;
+		retval = -ENODEV;
+		goto out;
 	}
 
+	psmouse->rate = psmouse_rate;
+	psmouse->resolution = psmouse_resolution;
+	psmouse->resetafter = psmouse_resetafter;
+	psmouse->smartscroll = psmouse_smartscroll;
+	psmouse->set_rate = psmouse_set_rate;
+	psmouse->set_resolution = psmouse_set_resolution;
+	psmouse->protocol_handler = psmouse_process_byte;
+	psmouse->pktsize = 3;
+
+	psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
+
 	sprintf(psmouse->devname, "%s %s %s",
 		psmouse_protocols[psmouse->type], psmouse->vendor, psmouse->name);
-	sprintf(psmouse->phys, "%s/input0",
-		serio->phys);
 
 	psmouse->dev.name = psmouse->devname;
 	psmouse->dev.phys = psmouse->phys;
@@ -651,92 +755,259 @@ 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);
+
+	device_create_file(&serio->dev, &psmouse_attr_rate);
+	device_create_file(&serio->dev, &psmouse_attr_resolution);
+	device_create_file(&serio->dev, &psmouse_attr_resetafter);
 
 	psmouse_activate(psmouse);
+
+	retval = 0;
+
+out:
+	/* If this is a pass-through port the parent awaits to be activated */
+	if (parent)
+		psmouse_activate(parent);
+
+	return retval;
 }
 
 
 static int psmouse_reconnect(struct serio *serio)
 {
-	struct psmouse *psmouse = serio->private;
-	struct serio_dev *dev = serio->dev;
-	int old_type;
+	struct psmouse *psmouse = serio_get_drvdata(serio);
+	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;
 	}
 
-	old_type = psmouse->type;
+	if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+		parent = serio_get_drvdata(serio->parent);
+		psmouse_deactivate(parent);
+	}
+
+	psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
 
-	psmouse->state = PSMOUSE_CMD_MODE;
-	psmouse->type = psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = 0;
 	if (psmouse->reconnect) {
-	       if (psmouse->reconnect(psmouse))
-			return -1;
-	} else if (psmouse_probe(psmouse) != old_type)
-		return -1;
+		if (psmouse->reconnect(psmouse))
+			goto out;
+	} else if (psmouse_probe(psmouse) < 0 ||
+		   psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
+		goto out;
 
 	/* ok, the device type (and capabilities) match the old one,
 	 * we can continue using it, complete intialization
 	 */
-	psmouse->type = old_type;
+	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_device_id psmouse_serio_ids[] = {
+	{
+		.type	= SERIO_8042,
+		.proto	= SERIO_ANY,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{
+		.type	= SERIO_PS_PSTHRU,
+		.proto	= SERIO_ANY,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
 
-static struct serio_dev psmouse_dev = {
-	.interrupt =	psmouse_interrupt,
-	.connect =	psmouse_connect,
-	.reconnect =	psmouse_reconnect,
-	.disconnect =	psmouse_disconnect,
-	.cleanup =	psmouse_cleanup,
+MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
+
+static struct serio_driver psmouse_drv = {
+	.driver		= {
+		.name	= "psmouse",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= psmouse_serio_ids,
+	.interrupt	= psmouse_interrupt,
+	.connect	= psmouse_connect,
+	.reconnect	= psmouse_reconnect,
+	.disconnect	= psmouse_disconnect,
+	.cleanup	= psmouse_cleanup,
 };
 
-static inline void psmouse_parse_proto(void)
-{
-	if (psmouse_proto) {
-		if (!strcmp(psmouse_proto, "bare"))
-			psmouse_max_proto = PSMOUSE_PS2;
-		else if (!strcmp(psmouse_proto, "imps"))
-			psmouse_max_proto = PSMOUSE_IMPS;
-		else if (!strcmp(psmouse_proto, "exps"))
-			psmouse_max_proto = PSMOUSE_IMEX;
-		else
-			printk(KERN_ERR "psmouse: unknown protocol type '%s'\n", psmouse_proto);
+ssize_t psmouse_attr_show_helper(struct device *dev, char *buf,
+				 ssize_t (*handler)(struct psmouse *, char *))
+{
+	struct serio *serio = to_serio_port(dev);
+	int retval;
+
+	retval = serio_pin_driver(serio);
+	if (retval)
+		return retval;
+
+	if (serio->drv != &psmouse_drv) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	retval = handler(serio_get_drvdata(serio), buf);
+
+out:
+	serio_unpin_driver(serio);
+	return retval;
+}
+
+ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t count,
+				ssize_t (*handler)(struct psmouse *, const char *, size_t))
+{
+	struct serio *serio = to_serio_port(dev);
+	struct psmouse *psmouse = serio_get_drvdata(serio);
+	struct psmouse *parent = NULL;
+	int retval;
+
+	retval = serio_pin_driver(serio);
+	if (retval)
+		return retval;
+
+	if (serio->drv != &psmouse_drv) {
+		retval = -ENODEV;
+		goto out;
 	}
+
+	if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+		parent = serio_get_drvdata(serio->parent);
+		psmouse_deactivate(parent);
+	}
+	psmouse_deactivate(psmouse);
+
+	retval = handler(psmouse, buf, count);
+
+	psmouse_activate(psmouse);
+	if (parent)
+		psmouse_activate(parent);
+
+out:
+	serio_unpin_driver(serio);
+	return retval;
+}
+
+static ssize_t psmouse_attr_show_rate(struct psmouse *psmouse, char *buf)
+{
+	return sprintf(buf, "%d\n", psmouse->rate);
+}
+
+static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, const char *buf, size_t count)
+{
+	unsigned long value;
+	char *rest;
+
+	value = simple_strtoul(buf, &rest, 10);
+	if (*rest)
+		return -EINVAL;
+
+	psmouse->set_rate(psmouse, value);
+	return count;
+}
+
+static ssize_t psmouse_attr_show_resolution(struct psmouse *psmouse, char *buf)
+{
+	return sprintf(buf, "%d\n", psmouse->resolution);
+}
+
+static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, const char *buf, size_t count)
+{
+	unsigned long value;
+	char *rest;
+
+	value = simple_strtoul(buf, &rest, 10);
+	if (*rest)
+		return -EINVAL;
+
+	psmouse->set_resolution(psmouse, value);
+	return count;
+}
+
+static ssize_t psmouse_attr_show_resetafter(struct psmouse *psmouse, char *buf)
+{
+	return sprintf(buf, "%d\n", psmouse->resetafter);
+}
+
+static ssize_t psmouse_attr_set_resetafter(struct psmouse *psmouse, const char *buf, size_t count)
+{
+	unsigned long value;
+	char *rest;
+
+	value = simple_strtoul(buf, &rest, 10);
+	if (*rest)
+		return -EINVAL;
+
+	psmouse->resetafter = value;
+	return count;
+}
+
+static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
+{
+	int i;
+
+	if (!val)
+		return -EINVAL;
+
+	if (!strncmp(val, "any", 3)) {
+		*((unsigned int *)kp->arg) = -1U;
+		return 0;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(psmouse_proto_abbrev); i++) {
+		if (!psmouse_proto_abbrev[i])
+			continue;
+
+		if (!strncmp(val, psmouse_proto_abbrev[i], strlen(psmouse_proto_abbrev[i]))) {
+			*((unsigned int *)kp->arg) = i;
+			return 0;
+		}
+	}
+
+	return -EINVAL;					\
+}
+
+static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
+{
+	return sprintf(buffer, "%s\n",
+			psmouse_max_proto < ARRAY_SIZE(psmouse_proto_abbrev) ?
+				psmouse_proto_abbrev[psmouse_max_proto] : "any");
 }
 
-int __init psmouse_init(void)
+static 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)
+static void __exit psmouse_exit(void)
 {
-	serio_unregister_device(&psmouse_dev);
+	serio_unregister_driver(&psmouse_drv);
 }
 
 module_init(psmouse_init);