339 lines
8.0 KiB
C
339 lines
8.0 KiB
C
/*
|
|
* 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 "psmouse.h"
|
|
#include "lifebook.h"
|
|
|
|
struct lifebook_data {
|
|
struct input_dev *dev2; /* Relative device */
|
|
char phys[32];
|
|
};
|
|
|
|
static const char *desired_serio_phys;
|
|
|
|
static int lifebook_set_serio_phys(const struct dmi_system_id *d)
|
|
{
|
|
desired_serio_phys = d->driver_data;
|
|
return 0;
|
|
}
|
|
|
|
static bool lifebook_use_6byte_proto;
|
|
|
|
static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
|
|
{
|
|
lifebook_use_6byte_proto = true;
|
|
return 0;
|
|
}
|
|
|
|
static const struct dmi_system_id lifebook_dmi_table[] = {
|
|
{
|
|
.ident = "FLORA-ie 55mi",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "LifeBook B",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Lifebook B",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Lifebook B-2130",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Lifebook B213x/B2150",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Zephyr",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "CF-18",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
|
|
},
|
|
.callback = lifebook_set_serio_phys,
|
|
.driver_data = "isa0060/serio3",
|
|
},
|
|
{
|
|
.ident = "Panasonic CF-28",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
|
|
},
|
|
.callback = lifebook_set_6byte_proto,
|
|
},
|
|
{
|
|
.ident = "Panasonic CF-29",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
|
|
},
|
|
.callback = lifebook_set_6byte_proto,
|
|
},
|
|
{
|
|
.ident = "CF-72",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "CF-72"),
|
|
},
|
|
.callback = lifebook_set_6byte_proto,
|
|
},
|
|
{
|
|
.ident = "Lifebook B142",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
|
|
},
|
|
},
|
|
{ }
|
|
};
|
|
|
|
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)
|
|
printk(KERN_WARNING "lifebook.c: 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 touchsreen will never send
|
|
absolute coordinates
|
|
*/
|
|
param = lifebook_use_6byte_proto ? 0x08 : 0x07;
|
|
ps2_command(ps2dev, ¶m, 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, ¶m, 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 (!dmi_check_system(lifebook_dmi_table))
|
|
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_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;
|
|
}
|
|
|