168 lines
4.4 KiB
C
168 lines
4.4 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"
|
|
|
|
static struct dmi_system_id lifebook_dmi_table[] = {
|
|
{
|
|
.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 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"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Lifebook B142",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
|
|
},
|
|
|
|
},
|
|
{ }
|
|
};
|
|
|
|
|
|
static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
|
|
{
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev = psmouse->dev;
|
|
|
|
if (psmouse->pktcnt != 3)
|
|
return PSMOUSE_GOOD_DATA;
|
|
|
|
input_regs(dev, regs);
|
|
|
|
/* calculate X and Y */
|
|
if ((packet[0] & 0x08) == 0x00) {
|
|
input_report_abs(dev, ABS_X,
|
|
(packet[1] | ((packet[0] & 0x30) << 4)));
|
|
input_report_abs(dev, ABS_Y,
|
|
1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
|
|
} else {
|
|
input_report_rel(dev, REL_X,
|
|
((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
|
|
input_report_rel(dev, REL_Y,
|
|
-(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
|
|
}
|
|
|
|
input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
|
|
input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
|
|
input_report_key(dev, BTN_TOUCH, packet[0] & 0x04);
|
|
|
|
input_sync(dev);
|
|
|
|
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 = 0x07;
|
|
ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
|
|
{
|
|
unsigned char params[] = { 0, 1, 2, 2, 3 };
|
|
|
|
if (resolution == 0 || resolution > 400)
|
|
resolution = 400;
|
|
|
|
ps2_command(&psmouse->ps2dev, ¶ms[resolution / 100], PSMOUSE_CMD_SETRES);
|
|
psmouse->resolution = 50 << params[resolution / 100];
|
|
}
|
|
|
|
static void lifebook_disconnect(struct psmouse *psmouse)
|
|
{
|
|
psmouse_reset(psmouse);
|
|
}
|
|
|
|
int lifebook_detect(struct psmouse *psmouse, int set_properties)
|
|
{
|
|
if (!dmi_check_system(lifebook_dmi_table))
|
|
return -1;
|
|
|
|
if (set_properties) {
|
|
psmouse->vendor = "Fujitsu";
|
|
psmouse->name = "Lifebook TouchScreen";
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int lifebook_init(struct psmouse *psmouse)
|
|
{
|
|
struct input_dev *input_dev = psmouse->dev;
|
|
|
|
if (lifebook_absolute_mode(psmouse))
|
|
return -1;
|
|
|
|
input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL);
|
|
input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
|
|
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
|
|
input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
|
|
input_set_abs_params(input_dev, ABS_X, 0, 1024, 0, 0);
|
|
input_set_abs_params(input_dev, ABS_Y, 0, 1024, 0, 0);
|
|
|
|
psmouse->protocol_handler = lifebook_process_byte;
|
|
psmouse->set_resolution = lifebook_set_resolution;
|
|
psmouse->disconnect = lifebook_disconnect;
|
|
psmouse->reconnect = lifebook_absolute_mode;
|
|
psmouse->pktsize = 3;
|
|
|
|
return 0;
|
|
}
|
|
|