drivers/input/mouse/lifebook.c - linux/kernel/git/viro/vfs - Git at Google

 /*
  * Fujitsu B-series Lifebook PS/2 TouchScreen driver
  *
  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
  * Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de>
  *
  * TouchScreen detection, absolute mode setting and packet layout is taken from
  * Harald Hoyer's description of the device.
  *
  * 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/input.h>
 #include <linux/serio.h>
 #include <linux/libps2.h>
 #include <linux/dmi.h>
 #include <linux/slab.h>

 #include "psmouse.h"
 #include "lifebook.h"

 struct lifebook_data {
 	struct input_dev *dev2;		/* Relative device */
 	char phys[32];
 };

 static bool lifebook_present;

 static const char *desired_serio_phys;

 static int lifebook_limit_serio3(const struct dmi_system_id *d)
 {
 	desired_serio_phys = "isa0060/serio3";
 	return 1;
 }

 static bool lifebook_use_6byte_proto;

 static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
 {
 	lifebook_use_6byte_proto = true;
 	return 1;
 }

 static const struct dmi_system_id lifebook_dmi_table[] __initconst = {
 	{
 		/* FLORA-ie 55mi */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
 		},
 	},
 	{
 		/* LifeBook B */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Lifebook B Series"),
 		},
 	},
 	{
 		/* LifeBook B */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
 		},
 	},
 	{
 		/* Lifebook B */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
 		},
 	},
 	{
 		/* Lifebook B-2130 */
 		.matches = {
 			DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
 		},
 	},
 	{
 		/* Lifebook B213x/B2150 */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
 		},
 	},
 	{
 		/* Zephyr */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
 		},
 	},
 	{
 		/* Panasonic CF-18 */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
 		},
 		.callback = lifebook_limit_serio3,
 	},
 	{
 		/* Panasonic CF-28 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
 		},
 		.callback = lifebook_set_6byte_proto,
 	},
 	{
 		/* Panasonic CF-29 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 		},
 		.callback = lifebook_set_6byte_proto,
 	},
 	{
 		/* Panasonic CF-72 */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "CF-72"),
 		},
 		.callback = lifebook_set_6byte_proto,
 	},
 	{
 		/* Lifebook B142 */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
 		},
 	},
 	{ }
 };

 void __init lifebook_module_init(void)
 {
 	lifebook_present = dmi_check_system(lifebook_dmi_table);
 }

 static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
 {
 	struct lifebook_data *priv = psmouse->private;
 	struct input_dev *dev1 = psmouse->dev;
 	struct input_dev *dev2 = priv ? priv->dev2 : NULL;
 	unsigned char *packet = psmouse->packet;
 	bool relative_packet = packet[0] & 0x08;

 	if (relative_packet || !lifebook_use_6byte_proto) {
 		if (psmouse->pktcnt != 3)
 			return PSMOUSE_GOOD_DATA;
 	} else {
 		switch (psmouse->pktcnt) {
 		case 1:
 			return (packet[0] & 0xf8) == 0x00 ?
 				PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
 		case 2:
 			return PSMOUSE_GOOD_DATA;
 		case 3:
 			return ((packet[2] & 0x30) << 2) == (packet[2] & 0xc0) ?
 				PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
 		case 4:
 			return (packet[3] & 0xf8) == 0xc0 ?
 				PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
 		case 5:
 			return (packet[4] & 0xc0) == (packet[2] & 0xc0) ?
 				PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
 		case 6:
 			if (((packet[5] & 0x30) << 2) != (packet[5] & 0xc0))
 				return PSMOUSE_BAD_DATA;
 			if ((packet[5] & 0xc0) != (packet[1] & 0xc0))
 				return PSMOUSE_BAD_DATA;
 			break; /* report data */
 		}
 	}

 	if (relative_packet) {
 		if (!dev2)
 			psmouse_warn(psmouse,
 				     "got relative packet but no relative device set up\n");
 	} else {
 		if (lifebook_use_6byte_proto) {
 			input_report_abs(dev1, ABS_X,
 				((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f));
 			input_report_abs(dev1, ABS_Y,
 				4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f)));
 		} else {
 			input_report_abs(dev1, ABS_X,
 				(packet[1] | ((packet[0] & 0x30) << 4)));
 			input_report_abs(dev1, ABS_Y,
 				1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
 		}
 		input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04);
 		input_sync(dev1);
 	}

 	if (dev2) {
 		if (relative_packet) {
 			input_report_rel(dev2, REL_X,
 				((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
 			input_report_rel(dev2, REL_Y,
 				 -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
 		}
 		input_report_key(dev2, BTN_LEFT, packet[0] & 0x01);
 		input_report_key(dev2, BTN_RIGHT, packet[0] & 0x02);
 		input_sync(dev2);
 	}

 	return PSMOUSE_FULL_PACKET;
 }

 static int lifebook_absolute_mode(struct psmouse *psmouse)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param;

 	if (psmouse_reset(psmouse))
 		return -1;

 	/*
 	 * Enable absolute output -- ps2_command fails always but if
 	 * you leave this call out the touchscreen will never send
 	 * absolute coordinates
 	 */
 	param = lifebook_use_6byte_proto ? 0x08 : 0x07;
 	ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);

 	return 0;
 }

 static void lifebook_relative_mode(struct psmouse *psmouse)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param = 0x06;

 	ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);
 }

 static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
 {
 	static const unsigned char params[] = { 0, 1, 2, 2, 3 };
 	unsigned char p;

 	if (resolution == 0 || resolution > 400)
 		resolution = 400;

 	p = params[resolution / 100];
 	ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
 	psmouse->resolution = 50 << p;
 }

 static void lifebook_disconnect(struct psmouse *psmouse)
 {
 	struct lifebook_data *priv = psmouse->private;

 	psmouse_reset(psmouse);
 	if (priv) {
 		input_unregister_device(priv->dev2);
 		kfree(priv);
 	}
 	psmouse->private = NULL;
 }

 int lifebook_detect(struct psmouse *psmouse, bool set_properties)
 {
         if (!lifebook_present)
                 return -1;

 	if (desired_serio_phys &&
 	    strcmp(psmouse->ps2dev.serio->phys, desired_serio_phys))
 		return -1;

 	if (set_properties) {
 		psmouse->vendor = "Fujitsu";
 		psmouse->name = "Lifebook TouchScreen";
 	}

         return 0;
 }

 static int lifebook_create_relative_device(struct psmouse *psmouse)
 {
 	struct input_dev *dev2;
 	struct lifebook_data *priv;
 	int error = -ENOMEM;

 	priv = kzalloc(sizeof(struct lifebook_data), GFP_KERNEL);
 	dev2 = input_allocate_device();
 	if (!priv || !dev2)
 		goto err_out;

 	priv->dev2 = dev2;
 	snprintf(priv->phys, sizeof(priv->phys),
 		 "%s/input1", psmouse->ps2dev.serio->phys);

 	dev2->phys = priv->phys;
 	dev2->name = "PS/2 Touchpad";
 	dev2->id.bustype = BUS_I8042;
 	dev2->id.vendor  = 0x0002;
 	dev2->id.product = PSMOUSE_LIFEBOOK;
 	dev2->id.version = 0x0000;
 	dev2->dev.parent = &psmouse->ps2dev.serio->dev;

 	dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 	dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
 	dev2->keybit[BIT_WORD(BTN_LEFT)] =
 				BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);

 	error = input_register_device(priv->dev2);
 	if (error)
 		goto err_out;

 	psmouse->private = priv;
 	return 0;

  err_out:
 	input_free_device(dev2);
 	kfree(priv);
 	return error;
 }

 int lifebook_init(struct psmouse *psmouse)
 {
 	struct input_dev *dev1 = psmouse->dev;
 	int max_coord = lifebook_use_6byte_proto ? 4096 : 1024;

 	if (lifebook_absolute_mode(psmouse))
 		return -1;

 	dev1->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
 	dev1->relbit[0] = 0;
 	dev1->keybit[BIT_WORD(BTN_MOUSE)] = 0;
 	dev1->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 	input_set_abs_params(dev1, ABS_X, 0, max_coord, 0, 0);
 	input_set_abs_params(dev1, ABS_Y, 0, max_coord, 0, 0);

 	if (!desired_serio_phys) {
 		if (lifebook_create_relative_device(psmouse)) {
 			lifebook_relative_mode(psmouse);
 			return -1;
 		}
 	}

 	psmouse->protocol_handler = lifebook_process_byte;
 	psmouse->set_resolution = lifebook_set_resolution;
 	psmouse->disconnect = lifebook_disconnect;
 	psmouse->reconnect  = lifebook_absolute_mode;

 	psmouse->model = lifebook_use_6byte_proto ? 6 : 3;

 	/*
 	 * Use packet size = 3 even when using 6-byte protocol because
 	 * that's what POLL will return on Lifebooks (according to spec).
 	 */
 	psmouse->pktsize = 3;

 	return 0;
 }
	/*
	* Fujitsu B-series Lifebook PS/2 TouchScreen driver
	*
	* Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
	* Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de>
	*
	* TouchScreen detection, absolute mode setting and packet layout is taken from
	* Harald Hoyer's description of the device.
	*
	* 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/input.h>
	#include <linux/serio.h>
	#include <linux/libps2.h>
	#include <linux/dmi.h>
	#include <linux/slab.h>

	#include "psmouse.h"
	#include "lifebook.h"

	struct lifebook_data {
	struct input_dev dev2; / Relative device */
	char phys[32];
	};

	static bool lifebook_present;

	static const char *desired_serio_phys;

	static int lifebook_limit_serio3(const struct dmi_system_id *d)
	{
	desired_serio_phys = "isa0060/serio3";
	return 1;
	}

	static bool lifebook_use_6byte_proto;

	static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
	{
	lifebook_use_6byte_proto = true;
	return 1;
	}

	static const struct dmi_system_id lifebook_dmi_table[] __initconst = {
	{
	/* FLORA-ie 55mi */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
	},
	},
	{
	/* LifeBook B */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "Lifebook B Series"),
	},
	},
	{
	/* LifeBook B */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
	},
	},
	{
	/* Lifebook B */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
	},
	},
	{
	/* Lifebook B-2130 */
	.matches = {
	DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
	},
	},
	{
	/* Lifebook B213x/B2150 */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
	},
	},
	{
	/* Zephyr */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
	},
	},
	{
	/* Panasonic CF-18 */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
	},
	.callback = lifebook_limit_serio3,
	},
	{
	/* Panasonic CF-28 */
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
	DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
	},
	.callback = lifebook_set_6byte_proto,
	},
	{
	/* Panasonic CF-29 */
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
	DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
	},
	.callback = lifebook_set_6byte_proto,
	},
	{
	/* Panasonic CF-72 */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "CF-72"),
	},
	.callback = lifebook_set_6byte_proto,
	},
	{
	/* Lifebook B142 */
	.matches = {
	DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
	},
	},
	{ }
	};

	void __init lifebook_module_init(void)
	{
	lifebook_present = dmi_check_system(lifebook_dmi_table);
	}

	static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
	{
	struct lifebook_data *priv = psmouse->private;
	struct input_dev *dev1 = psmouse->dev;
	struct input_dev *dev2 = priv ? priv->dev2 : NULL;
	unsigned char *packet = psmouse->packet;
	bool relative_packet = packet[0] & 0x08;

	if (relative_packet \|\| !lifebook_use_6byte_proto) {
	if (psmouse->pktcnt != 3)
	return PSMOUSE_GOOD_DATA;
	} else {
	switch (psmouse->pktcnt) {
	case 1:
	return (packet[0] & 0xf8) == 0x00 ?
	PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
	case 2:
	return PSMOUSE_GOOD_DATA;
	case 3:
	return ((packet[2] & 0x30) << 2) == (packet[2] & 0xc0) ?
	PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
	case 4:
	return (packet[3] & 0xf8) == 0xc0 ?
	PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
	case 5:
	return (packet[4] & 0xc0) == (packet[2] & 0xc0) ?
	PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
	case 6:
	if (((packet[5] & 0x30) << 2) != (packet[5] & 0xc0))
	return PSMOUSE_BAD_DATA;
	if ((packet[5] & 0xc0) != (packet[1] & 0xc0))
	return PSMOUSE_BAD_DATA;
	break; /* report data */
	}
	}

	if (relative_packet) {
	if (!dev2)
	psmouse_warn(psmouse,
	"got relative packet but no relative device set up\n");
	} else {
	if (lifebook_use_6byte_proto) {
	input_report_abs(dev1, ABS_X,
	((packet[1] & 0x3f) << 6) \| (packet[2] & 0x3f));
	input_report_abs(dev1, ABS_Y,
	4096 - (((packet[4] & 0x3f) << 6) \| (packet[5] & 0x3f)));
	} else {
	input_report_abs(dev1, ABS_X,
	(packet[1] \| ((packet[0] & 0x30) << 4)));
	input_report_abs(dev1, ABS_Y,
	1024 - (packet[2] \| ((packet[0] & 0xC0) << 2)));
	}
	input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04);
	input_sync(dev1);
	}

	if (dev2) {
	if (relative_packet) {
	input_report_rel(dev2, REL_X,
	((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
	input_report_rel(dev2, REL_Y,
	-(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
	}
	input_report_key(dev2, BTN_LEFT, packet[0] & 0x01);
	input_report_key(dev2, BTN_RIGHT, packet[0] & 0x02);
	input_sync(dev2);
	}

	return PSMOUSE_FULL_PACKET;
	}

	static int lifebook_absolute_mode(struct psmouse *psmouse)
	{
	struct ps2dev *ps2dev = &psmouse->ps2dev;
	unsigned char param;

	if (psmouse_reset(psmouse))
	return -1;

	/*
	* Enable absolute output -- ps2_command fails always but if
	* you leave this call out the touchscreen will never send
	* absolute coordinates
	*/
	param = lifebook_use_6byte_proto ? 0x08 : 0x07;
	ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);

	return 0;
	}

	static void lifebook_relative_mode(struct psmouse *psmouse)
	{
	struct ps2dev *ps2dev = &psmouse->ps2dev;
	unsigned char param = 0x06;

	ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);
	}

	static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
	{
	static const unsigned char params[] = { 0, 1, 2, 2, 3 };
	unsigned char p;

	if (resolution == 0 \|\| resolution > 400)
	resolution = 400;

	p = params[resolution / 100];
	ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
	psmouse->resolution = 50 << p;
	}

	static void lifebook_disconnect(struct psmouse *psmouse)
	{
	struct lifebook_data *priv = psmouse->private;

	psmouse_reset(psmouse);
	if (priv) {
	input_unregister_device(priv->dev2);
	kfree(priv);
	}
	psmouse->private = NULL;
	}

	int lifebook_detect(struct psmouse *psmouse, bool set_properties)
	{
	if (!lifebook_present)
	return -1;

	if (desired_serio_phys &&
	strcmp(psmouse->ps2dev.serio->phys, desired_serio_phys))
	return -1;

	if (set_properties) {
	psmouse->vendor = "Fujitsu";
	psmouse->name = "Lifebook TouchScreen";
	}

	return 0;
	}

	static int lifebook_create_relative_device(struct psmouse *psmouse)
	{
	struct input_dev *dev2;
	struct lifebook_data *priv;
	int error = -ENOMEM;

	priv = kzalloc(sizeof(struct lifebook_data), GFP_KERNEL);
	dev2 = input_allocate_device();
	if (!priv \|\| !dev2)
	goto err_out;

	priv->dev2 = dev2;
	snprintf(priv->phys, sizeof(priv->phys),
	"%s/input1", psmouse->ps2dev.serio->phys);

	dev2->phys = priv->phys;
	dev2->name = "PS/2 Touchpad";
	dev2->id.bustype = BUS_I8042;
	dev2->id.vendor = 0x0002;
	dev2->id.product = PSMOUSE_LIFEBOOK;
	dev2->id.version = 0x0000;
	dev2->dev.parent = &psmouse->ps2dev.serio->dev;

	dev2->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REL);
	dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) \| BIT_MASK(REL_Y);
	dev2->keybit[BIT_WORD(BTN_LEFT)] =
	BIT_MASK(BTN_LEFT) \| BIT_MASK(BTN_RIGHT);

	error = input_register_device(priv->dev2);
	if (error)
	goto err_out;

	psmouse->private = priv;
	return 0;

	err_out:
	input_free_device(dev2);
	kfree(priv);
	return error;
	}

	int lifebook_init(struct psmouse *psmouse)
	{
	struct input_dev *dev1 = psmouse->dev;
	int max_coord = lifebook_use_6byte_proto ? 4096 : 1024;

	if (lifebook_absolute_mode(psmouse))
	return -1;

	dev1->evbit[0] = BIT_MASK(EV_ABS) \| BIT_MASK(EV_KEY);
	dev1->relbit[0] = 0;
	dev1->keybit[BIT_WORD(BTN_MOUSE)] = 0;
	dev1->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
	input_set_abs_params(dev1, ABS_X, 0, max_coord, 0, 0);
	input_set_abs_params(dev1, ABS_Y, 0, max_coord, 0, 0);

	if (!desired_serio_phys) {
	if (lifebook_create_relative_device(psmouse)) {
	lifebook_relative_mode(psmouse);
	return -1;
	}
	}

	psmouse->protocol_handler = lifebook_process_byte;
	psmouse->set_resolution = lifebook_set_resolution;
	psmouse->disconnect = lifebook_disconnect;
	psmouse->reconnect = lifebook_absolute_mode;

	psmouse->model = lifebook_use_6byte_proto ? 6 : 3;

	/*
	* Use packet size = 3 even when using 6-byte protocol because
	* that's what POLL will return on Lifebooks (according to spec).
	*/
	psmouse->pktsize = 3;

	return 0;
	}