Hi Stephen,
On Thursday 22 February 2007 01:16, Stephen Hemminger wrote:
> I did a little investigation and the touchscreen on B6210 is
> attached via the 8250 serial port. I tried enabling it with
> inputattach but seem to get garbage.
>
> I can extract the initialization code from the evtouch driver
> to a usermode program and read information from /dev/ttyS0.
>
> The lifebook psmouse extension won't work because it tries
> to grab the 8042 (touchpad) rather than the touch screen.
>
> Ideas?
>
Please try the patch below. You will need to load 8250_pnp,
serport and fujitsu_ts modules, then do
inputattach -fjt /dev/ttyS0
You can find patched version of inputattach here:
http://www.kernel.org/pub/linux/kernel/people/dtor/
Please let me know if it works for you.
--
Dmitry
Input: add driver for Fujitsu serial touchscreens
Such touchscreen are found in Fujitsu lifebook P-series laptops.
Signed-off-by: Dmitry Torokhov <[EMAIL PROTECTED]>
---
drivers/input/touchscreen/Kconfig | 17 ++
drivers/input/touchscreen/Makefile | 15 +-
drivers/input/touchscreen/fujitsu_ts.c | 191 +++++++++++++++++++++++++++++++++
3 files changed, 214 insertions(+), 9 deletions(-)
Index: linux/drivers/input/touchscreen/Kconfig
===================================================================
--- linux.orig/drivers/input/touchscreen/Kconfig
+++ linux/drivers/input/touchscreen/Kconfig
@@ -44,9 +44,9 @@ config TOUCHSCREEN_BITSY
config TOUCHSCREEN_CORGI
tristate "SharpSL (Corgi and Spitz series) touchscreen driver"
depends on PXA_SHARPSL
- default y
+ default y
help
- Say Y here to enable the driver for the touchscreen on the
+ Say Y here to enable the driver for the touchscreen on the
Sharp SL-C7xx and SL-Cxx00 series of PDAs.
If unsure, say N.
@@ -54,6 +54,19 @@ config TOUCHSCREEN_CORGI
To compile this driver as a module, choose M here: the
module will be called corgi_ts.
+config TOUCHSCREEN_FUJITSU
+ tristate "Fujitsu serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have the Fujitsu touchscreen (such as one
+ installed in Lifebook P series laptop) connected to your
+ system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called fujitsu-ts.
+
config TOUCHSCREEN_GUNZE
tristate "Gunze AHL-51S touchscreen"
select SERIO
Index: linux/drivers/input/touchscreen/Makefile
===================================================================
--- linux.orig/drivers/input/touchscreen/Makefile
+++ linux/drivers/input/touchscreen/Makefile
@@ -5,13 +5,14 @@
# Each configuration option enables a list of files.
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
-obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
-obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
-obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
-obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
-obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
-obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
-obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
+obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
+obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
+obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
+obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
+obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
Index: linux/drivers/input/touchscreen/fujitsu_ts.c
===================================================================
--- /dev/null
+++ linux/drivers/input/touchscreen/fujitsu_ts.c
@@ -0,0 +1,190 @@
+/*
+ * Fujitsu serial touchscreen driver
+ *
+ * Copyright (c) Dmitry Torokhov <[EMAIL PROTECTED]>
+ */
+
+/*
+ * 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/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Fujitsu serial touchscreen driver"
+
+MODULE_AUTHOR("Dmitry Torokhov <[EMAIL PROTECTED]>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define FUJITSU_PACKET_LENGTH 5
+
+#define FUJITSU_MIN_X 0
+#define FUJITSU_MAX_X 4095
+#define FUJITSU_MIN_Y 0
+#define FUJITSU_MAX_Y 4095
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct fujitsu {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[FUJITSU_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t fujitsu_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct fujitsu *fujitsu = serio_get_drvdata(serio);
+ struct input_dev *dev = fujitsu->dev;
+
+ if (fujitsu->idx == 0) {
+ if ((data & 0xf8) != 0x80)
+ return IRQ_HANDLED;
+ } else {
+ if ((data & 0x80) != 0x00) {
+ fujitsu->idx = 0;
+ return IRQ_HANDLED;
+ }
+ }
+
+ fujitsu->data[fujitsu->idx++] = data;
+
+ if (fujitsu->idx == FUJITSU_PACKET_LENGTH) {
+
+ input_report_abs(dev, ABS_X,
+ (fujitsu->data[2] << 7) | fujitsu->data[1]);
+ input_report_abs(dev, ABS_Y,
+ (fujitsu->data[4] << 7) | fujitsu->data[3]);
+ input_report_key(dev, BTN_TOUCH,
+ (fujitsu->data[0] & 0x03) != 2);
+ input_sync(dev);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * fujitsu_disconnect() is the opposite of fujitsu_connect()
+ */
+
+static void fujitsu_disconnect(struct serio *serio)
+{
+ struct fujitsu *fujitsu = serio_get_drvdata(serio);
+
+ input_get_device(fujitsu->dev);
+ input_unregister_device(fujitsu->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(fujitsu->dev);
+ kfree(fujitsu);
+}
+
+/*
+ * fujitsu_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Fujitsu protocol and registers it
+ * as input device.
+ */
+
+static int fujitsu_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct fujitsu *fujitsu;
+ struct input_dev *input_dev;
+ int err;
+
+ fujitsu = kzalloc(sizeof(struct fujitsu), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!fujitsu || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ fujitsu->serio = serio;
+ fujitsu->dev = input_dev;
+ snprintf(fujitsu->phys, sizeof(fujitsu->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "Fujitsu Serial Touchscreen";
+ input_dev->phys = fujitsu->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_FUJITSU;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(tw->dev, ABS_X, TW_MIN_XC, TW_MAX_XC, 0, 0);
+ input_set_abs_params(tw->dev, ABS_Y, TW_MIN_YC, TW_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, fujitsu);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(fujitsu->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(fujitsu);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id fujitsu_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_FUJITSU,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, fujitsu_serio_ids);
+
+static struct serio_driver fujitsu_drv = {
+ .driver = {
+ .name = "fujitsu_ts",
+ },
+ .description = DRIVER_DESC,
+ .id_table = fujitsu_serio_ids,
+ .interrupt = fujitsu_interrupt,
+ .connect = fujitsu_connect,
+ .disconnect = fujitsu_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init fujitsu_init(void)
+{
+ return serio_register_driver(&fujitsu_drv);
+}
+
+static void __exit fujitsu_exit(void)
+{
+ serio_unregister_driver(&fujitsu_drv);
+}
+
+module_init(fujitsu_init);
+module_exit(fujitsu_exit);
