Re: [rfc/rft] Fujitsu B-Series Lifebook PS/2 TouchScreen driver

From: Kenan Esau
Date: Tue Mar 15 2005 - 08:31:26 EST

Here is a new version of the patch:
- minimal changes
- reintroduced DMI-probing

I had a look at the synaptic-sources to see how the pass-through-mode is
implemented. We'll see if something similar to this also works with the
lifebook.

I received a request from a user who has a Panasonic CF-29. It also
seems to have the same Touchscreen hardware like the lifebook. But it
doesn't seem to work as expected. Can someone get hold of a CF-29 and
test the psmouse-patch with it?
diff -X dontdiff -Naur linux-2.6.11.3/drivers/input/mouse/lifebook.c linux-2.6.11.3-kenan/drivers/input/mouse/lifebook.c
--- linux-2.6.11.3/drivers/input/mouse/lifebook.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.11.3-kenan/drivers/input/mouse/lifebook.c 2005-03-15 10:04:34.000000000 +0100
@@ -0,0 +1,126 @@
+/*
+ * Fujitsu B-series Lifebook PS/2 TouchScreen driver
+ *
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@xxxxxxx>
+ * Copyright (c) 2005 Kenan Esau <kenan.esau@xxxxxxxx>
+ *
+ * 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 int max_y = 1024;
+
+
+static struct dmi_system_id lifebook_dmi_table[] = {
+ {
+ .ident = "Fujitsu Siemens Lifebook B-Sereis",
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
+ },
+ },
+ { }
+};
+
+
+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,
+ max_y - (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_initialize(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param;
+
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+ return -1;
+
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_BAT))
+ 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, &param, PSMOUSE_CMD_SETRES);
+
+ psmouse->set_rate(psmouse, psmouse->rate);
+ psmouse->set_resolution(psmouse, psmouse->resolution);
+
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
+ return -1;
+
+ return 0;
+}
+
+static void lifebook_disconnect(struct psmouse *psmouse)
+{
+ psmouse_reset(psmouse);
+}
+
+int lifebook_detect(struct psmouse *psmouse, unsigned int max_proto,
+ int set_properties)
+{
+ if (!dmi_check_system(lifebook_dmi_table) &&
+ (max_proto != PSMOUSE_LIFEBOOK) )
+ return -1;
+
+ if (set_properties) {
+ psmouse->vendor = "Fujitsu Lifebook";
+ psmouse->name = "TouchScreen";
+ psmouse->dev.evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL);
+ psmouse->dev.keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
+ psmouse->dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
+ input_set_abs_params(&psmouse->dev, ABS_X, 0, 1024, 0, 0);
+ input_set_abs_params(&psmouse->dev, ABS_Y, 0, 1024, 0, 0);
+
+ psmouse->protocol_handler = lifebook_process_byte;
+ psmouse->disconnect = lifebook_disconnect;
+ psmouse->reconnect = lifebook_initialize;
+ psmouse->pktsize = 3;
+ }
+
+ return lifebook_initialize(psmouse);
+}
diff -X dontdiff -Naur linux-2.6.11.3/drivers/input/mouse/lifebook.h linux-2.6.11.3-kenan/drivers/input/mouse/lifebook.h
--- linux-2.6.11.3/drivers/input/mouse/lifebook.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.11.3-kenan/drivers/input/mouse/lifebook.h 2005-03-14 10:01:57.000000000 +0100
@@ -0,0 +1,17 @@
+/*
+ * Fujitsu B-series Lifebook PS/2 TouchScreen driver
+ *
+ * Copyright (c) 2005 Vojtech Pavlik
+ *
+ * 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.
+ */
+
+#ifndef _LIFEBOOK_H
+#define _LIFEBOOK_H
+
+int lifebook_detect(struct psmouse *psmouse, unsigned int max_proto,
+ int set_properties);
+
+#endif
diff -X dontdiff -Naur linux-2.6.11.3/drivers/input/mouse/Makefile linux-2.6.11.3-kenan/drivers/input/mouse/Makefile
--- linux-2.6.11.3/drivers/input/mouse/Makefile 2005-03-13 07:44:13.000000000 +0100
+++ linux-2.6.11.3-kenan/drivers/input/mouse/Makefile 2005-03-14 10:01:57.000000000 +0100
@@ -14,4 +14,4 @@
obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o
obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o

-psmouse-objs := psmouse-base.o alps.o logips2pp.o synaptics.o
+psmouse-objs := psmouse-base.o alps.o logips2pp.o synaptics.o lifebook.o
diff -X dontdiff -Naur linux-2.6.11.3/drivers/input/mouse/psmouse-base.c linux-2.6.11.3-kenan/drivers/input/mouse/psmouse-base.c
--- linux-2.6.11.3/drivers/input/mouse/psmouse-base.c 2005-03-13 07:44:14.000000000 +0100
+++ linux-2.6.11.3-kenan/drivers/input/mouse/psmouse-base.c 2005-03-15 09:58:37.000000000 +0100
@@ -24,6 +24,7 @@
#include "synaptics.h"
#include "logips2pp.h"
#include "alps.h"
+#include "lifebook.h"

#define DRIVER_DESC "PS/2 mouse driver"

@@ -34,7 +35,7 @@
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.");
+MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, lifebook). Useful for KVM switches.");

static unsigned int psmouse_resolution = 200;
module_param_named(resolution, psmouse_resolution, uint, 0);
@@ -62,7 +63,7 @@
__obsolete_setup("psmouse_resetafter=");
__obsolete_setup("psmouse_rate=");

-static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "ThinkPS/2", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2", "AlpsPS/2" };
+static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "ThinkPS/2", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2", "AlpsPS/2", "LBPS/2" };

/*
* psmouse_process_byte() analyzes the PS/2 data stream and reports
@@ -418,6 +419,9 @@
{
int synaptics_hardware = 0;

+ if (lifebook_detect(psmouse, max_proto, set_properties) == 0)
+ return PSMOUSE_LIFEBOOK;
+
/*
* Try Kensington ThinkingMouse (we try first, because synaptics probe
* upsets the thinkingmouse).
@@ -567,6 +571,8 @@

static void psmouse_initialize(struct psmouse *psmouse)
{
+ if (psmouse->type==PSMOUSE_LIFEBOOK)
+ return;
/*
* We set the mouse into streaming mode.
*/
@@ -951,6 +957,8 @@
psmouse_max_proto = PSMOUSE_IMPS;
else if (!strcmp(psmouse_proto, "exps"))
psmouse_max_proto = PSMOUSE_IMEX;
+ else if (!strcmp(psmouse_proto, "lifebook"))
+ psmouse_max_proto = PSMOUSE_LIFEBOOK;
else
printk(KERN_ERR "psmouse: unknown protocol type '%s'\n", psmouse_proto);
}
diff -X dontdiff -Naur linux-2.6.11.3/drivers/input/mouse/psmouse.h linux-2.6.11.3-kenan/drivers/input/mouse/psmouse.h
--- linux-2.6.11.3/drivers/input/mouse/psmouse.h 2005-03-13 07:44:40.000000000 +0100
+++ linux-2.6.11.3-kenan/drivers/input/mouse/psmouse.h 2005-03-14 10:01:57.000000000 +0100
@@ -77,6 +77,7 @@
PSMOUSE_IMEX,
PSMOUSE_SYNAPTICS,
PSMOUSE_ALPS,
+ PSMOUSE_LIFEBOOK,
};

int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
diff -X dontdiff -Naur linux-2.6.11.3/include/linux/version.h.tmp linux-2.6.11.3-kenan/include/linux/version.h.tmp