Index: boot/arch/arm32/Makefile.inc
===================================================================
--- boot/arch/arm32/Makefile.inc	(revision 07c66cf78362ee9aa313f660d3789cbed9c001e3)
+++ boot/arch/arm32/Makefile.inc	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -42,4 +42,5 @@
 
 RD_SRVS_ESSENTIAL += \
+	$(USPACE_PATH)/srv/hid/s3c24xx_ts/s3c24ts \
 	$(USPACE_PATH)/srv/hw/char/s3c24xx_uart/s3c24ser
 
Index: kernel/arch/arm32/src/mach/gta02/gta02.c
===================================================================
--- kernel/arch/arm32/src/mach/gta02/gta02.c	(revision 07c66cf78362ee9aa313f660d3789cbed9c001e3)
+++ kernel/arch/arm32/src/mach/gta02/gta02.c	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -221,4 +221,11 @@
 		}
 	}
+
+	/* Enable interrupts from ADC */
+	s3c24xx_irqc_src_enable(&gta02_irqc, S3C24XX_INT_ADC);
+
+	/* Enable interrupts from ADC sub-sources */
+	s3c24xx_irqc_subsrc_enable(&gta02_irqc, S3C24XX_SUBINT_ADC_S);
+	s3c24xx_irqc_subsrc_enable(&gta02_irqc, S3C24XX_SUBINT_TC);
 }
 
Index: uspace/Makefile
===================================================================
--- uspace/Makefile	(revision 07c66cf78362ee9aa313f660d3789cbed9c001e3)
+++ uspace/Makefile	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -66,4 +66,5 @@
 	srv/hid/adb_mouse \
 	srv/hid/char_mouse \
+	srv/hid/s3c24xx_ts \
 	srv/hid/fb \
 	srv/hid/kbd \
Index: uspace/app/init/init.c
===================================================================
--- uspace/app/init/init.c	(revision 07c66cf78362ee9aa313f660d3789cbed9c001e3)
+++ uspace/app/init/init.c	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -277,4 +277,5 @@
 	srv_start("/srv/adb_ms");
 	srv_start("/srv/char_ms");
+	srv_start("/srv/s3c24ts");
 	
 	spawn("/srv/fb");
Index: uspace/srv/hid/s3c24xx_ts/Makefile
===================================================================
--- uspace/srv/hid/s3c24xx_ts/Makefile	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
+++ uspace/srv/hid/s3c24xx_ts/Makefile	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -0,0 +1,37 @@
+#
+# Copyright (c) 2010 Jiri Svoboda
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+USPACE_PREFIX = ../../..
+
+# Need to use short name because of FAT 8+3 limit
+BINARY = s3c24ts
+
+SOURCES = \
+	s3c24xx_ts.c
+
+include $(USPACE_PREFIX)/Makefile.common
Index: uspace/srv/hid/s3c24xx_ts/s3c24xx_ts.c
===================================================================
--- uspace/srv/hid/s3c24xx_ts/s3c24xx_ts.c	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
+++ uspace/srv/hid/s3c24xx_ts/s3c24xx_ts.c	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -0,0 +1,408 @@
+/*
+ * Copyright (c) 2010 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup mouse
+ * @{
+ */
+/**
+ * @file
+ * @brief Samsung Samsung S3C24xx on-chip ADC and touch-screen interface driver.
+ *
+ * This interface is present on the Samsung S3C24xx CPU (on the gta02 platform).
+ */
+
+#include <ddi.h>
+#include <libarch/ddi.h>
+#include <devmap.h>
+#include <io/console.h>
+#include <vfs/vfs.h>
+#include <ipc/ipc.h>
+#include <ipc/mouse.h>
+#include <async.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sysinfo.h>
+#include <errno.h>
+
+#include "s3c24xx_ts.h"
+
+#define NAME "s3c24ser"
+#define NAMESPACE "hid_in"
+
+static irq_cmd_t ts_irq_cmds[] = {
+	{
+		.cmd = CMD_ACCEPT
+	}
+};
+
+static irq_code_t ts_irq_code = {
+	sizeof(ts_irq_cmds) / sizeof(irq_cmd_t),
+	ts_irq_cmds
+};
+
+/** S3C24xx touchscreen instance structure */
+static s3c24xx_ts_t *ts;
+
+static void s3c24xx_ts_connection(ipc_callid_t iid, ipc_call_t *icall);
+static void s3c24xx_ts_irq_handler(ipc_callid_t iid, ipc_call_t *call);
+static void s3c24xx_ts_pen_down(s3c24xx_ts_t *ts);
+static void s3c24xx_ts_pen_up(s3c24xx_ts_t *ts);
+static void s3c24xx_ts_eoc(s3c24xx_ts_t *ts);
+static int s3c24xx_ts_init(s3c24xx_ts_t *ts);
+static void s3c24xx_ts_wait_for_int_mode(s3c24xx_ts_t *ts, ts_updn_t updn);
+static void s3c24xx_ts_convert_samples(int smp0, int smp1, int *x, int *y);
+static int lin_map_range(int v, int i0, int i1, int o0, int o1);
+
+int main(int argc, char *argv[])
+{
+	int rc;
+
+	printf(NAME ": S3C24xx touchscreen driver\n");
+
+	rc = devmap_driver_register(NAME, s3c24xx_ts_connection);
+	if (rc < 0) {
+		printf(NAME ": Unable to register driver.\n");
+		return -1;
+	}
+
+	ts = malloc(sizeof(s3c24xx_ts_t));
+	if (ts == NULL)
+		return -1;
+
+	if (s3c24xx_ts_init(ts) != EOK)
+		return -1;
+
+	rc = devmap_device_register(NAMESPACE "/mouse", &ts->dev_handle);
+	if (rc != EOK) {
+		devmap_hangup_phone(DEVMAP_DRIVER);
+		printf(NAME ": Unable to register device %s.\n",
+		    NAMESPACE "/mouse");
+		return -1;
+	}
+
+	printf(NAME ": Registered device %s.\n", NAMESPACE "/mouse");
+
+	printf(NAME ": Accepting connections\n");
+	task_retval(0);
+	async_manager();
+
+	/* Not reached */
+	return 0;
+}
+
+/** Initialize S3C24xx touchscreen interface. */
+static int s3c24xx_ts_init(s3c24xx_ts_t *ts)
+{
+	void *vaddr;
+	sysarg_t inr;
+
+	inr = S3C24XX_TS_INR;
+	ts->paddr = S3C24XX_TS_ADDR;
+
+	if (pio_enable((void *) ts->paddr, sizeof(s3c24xx_adc_io_t),
+	    &vaddr) != 0)
+		return -1;
+
+	ts->io = vaddr;
+	ts->client_phone = -1;
+	ts->state = ts_wait_pendown;
+	ts->last_x = 0;
+	ts->last_y = 0;
+
+	printf(NAME ": device at physical address 0x%x, inr %d.\n",
+	    ts->paddr, inr);
+
+	async_set_interrupt_received(s3c24xx_ts_irq_handler);
+	ipc_register_irq(inr, device_assign_devno(), 0, &ts_irq_code);
+
+	s3c24xx_ts_wait_for_int_mode(ts, updn_down);
+
+	return EOK;
+}
+
+/** Switch interface to wait for interrupt mode.
+ *
+ * In this mode we receive an interrupt when pen goes up/down, depending
+ * on @a updn.
+ *
+ * @param ts	Touchscreen instance
+ * @param updn	@c updn_up to wait for pen up, @c updn_down to wait for pen
+ *		down.
+ */
+static void s3c24xx_ts_wait_for_int_mode(s3c24xx_ts_t *ts, ts_updn_t updn)
+{
+	uint32_t con, tsc;
+
+	/*
+	 * Configure ADCCON register
+	 */
+
+	con = pio_read_32(&ts->io->con);
+
+	/* Disable standby, disable start-by-read, clear manual start bit */
+	con = con & ~(ADCCON_STDBM | ADCCON_READ_START | ADCCON_ENABLE_START);
+
+	/* Set prescaler value 0xff, XP for input. */
+	con = con | (ADCCON_PRSCVL(0xff) << 6) | ADCCON_SEL_MUX(SMUX_XP);
+
+	/* Enable prescaler. */
+	con = con | ADCCON_PRSCEN;
+
+ 	pio_write_32(&ts->io->con, con);
+
+	/*
+	 * Configure ADCTSC register
+	 */
+
+	tsc = pio_read_32(&ts->io->tsc);
+
+	/* Select whether waiting for pen up or pen down. */
+	if (updn == updn_up)
+		tsc |= ADCTSC_DSUD_UP;
+	else
+		tsc &= ~ADCTSC_DSUD_UP;
+
+	/*
+	 * Enable XP pull-up and disable all drivers except YM. This is
+	 * according to the manual. This gives us L on XP input when touching
+	 * and (pulled up to) H when not touching.
+	 */
+	tsc = tsc & ~(ADCTSC_XM_ENABLE | ADCTSC_AUTO_PST |
+	    ADCTSC_PULLUP_DISABLE);
+	tsc = tsc | ADCTSC_YP_DISABLE | ADCTSC_XP_DISABLE | ADCTSC_YM_ENABLE;
+
+	/* Select wait-for-interrupt mode. */
+	tsc = (tsc & ~ADCTSC_XY_PST_MASK) | ADCTSC_XY_PST_WAITINT;
+
+	pio_write_32(&ts->io->tsc, tsc);
+}
+
+/** Handle touchscreen interrupt */
+static void s3c24xx_ts_irq_handler(ipc_callid_t iid, ipc_call_t *call)
+{
+	ts_updn_t updn;
+
+	(void) iid; (void) call;
+
+	/* Read up/down interrupt flags. */
+	updn = pio_read_32(&ts->io->updn);
+
+	if (updn & (ADCUPDN_TSC_DN | ADCUPDN_TSC_UP)) {
+		/* Clear up/down interrupt flags. */
+		pio_write_32(&ts->io->updn, updn &
+		    ~(ADCUPDN_TSC_DN | ADCUPDN_TSC_UP));
+	}
+
+	if (updn & ADCUPDN_TSC_DN) {
+		/* Pen-down interrupt */
+		s3c24xx_ts_pen_down(ts);
+	} else if (updn & ADCUPDN_TSC_UP) {
+		/* Pen-up interrupt */
+		s3c24xx_ts_pen_up(ts);
+	} else {
+		/* Presumably end-of-conversion interrupt */
+
+		/* Check end-of-conversion flag. */
+		if ((pio_read_32(&ts->io->con) & ADCCON_ECFLG) == 0) {
+			printf(NAME ": Unrecognized ts int.\n");
+			return;
+		}
+
+		if (ts->state != ts_sample_pos) {
+			/*
+			 * We got an extra interrupt ater switching to
+			 * wait for interrupt mode.
+			 */
+			return;
+		}
+
+		/* End-of-conversion interrupt */
+		s3c24xx_ts_eoc(ts);
+	}
+}
+
+/** Handle pen-down interrupt.
+ *
+ * @param ts	Touchscreen instance
+ */
+static void s3c24xx_ts_pen_down(s3c24xx_ts_t *ts)
+{
+	/* Pen-down interrupt */
+
+	ts->state = ts_sample_pos;
+
+	/* Enable auto xy-conversion mode */
+	pio_write_32(&ts->io->tsc, (pio_read_32(&ts->io->tsc)
+	    & ~3) | 4);
+
+	/* Start the conversion. */
+	pio_write_32(&ts->io->con, pio_read_32(&ts->io->con)
+	    | ADCCON_ENABLE_START);
+}
+
+/** Handle pen-up interrupt.
+ *
+ * @param ts	Touchscreen instance
+ */
+static void s3c24xx_ts_pen_up(s3c24xx_ts_t *ts)
+{
+	int button, press;
+
+	/* Pen-up interrupt */
+
+	ts->state = ts_wait_pendown;
+
+	button = 1;
+	press = 0;
+	async_msg_2(ts->client_phone, MEVENT_BUTTON, button, press);
+
+	s3c24xx_ts_wait_for_int_mode(ts, updn_down);
+}
+
+/** Handle end-of-conversion interrupt.
+ *
+ * @param ts	Touchscreen instance
+ */
+static void s3c24xx_ts_eoc(s3c24xx_ts_t *ts)
+{
+	uint32_t data;
+	int button, press;
+	int smp0, smp1;
+	int x_pos, y_pos;
+	int dx, dy;
+
+	ts->state = ts_wait_penup;
+
+	/* Read in sampled data. */
+
+	data = pio_read_32(&ts->io->dat0);
+	smp0 = data & 0x3ff;
+
+	data = pio_read_32(&ts->io->dat1);
+	smp1 = data & 0x3ff;
+
+	/* Convert to screen coordinates. */
+	s3c24xx_ts_convert_samples(smp0, smp1, &x_pos, &y_pos);
+
+	printf("s0: 0x%03x, s1:0x%03x -> x:%d,y:%d\n", smp0, smp1,
+	    x_pos, y_pos);
+
+	/* Get differences. */
+	dx = x_pos - ts->last_x;
+	dy = y_pos - ts->last_y;
+
+	button = 1;
+	press = 1;
+
+	/* Send notifications to client. */
+	async_msg_2(ts->client_phone, MEVENT_MOVE, dx, dy);
+	async_msg_2(ts->client_phone, MEVENT_BUTTON, button, press);
+
+	ts->last_x = x_pos;
+	ts->last_y = y_pos;
+
+	s3c24xx_ts_wait_for_int_mode(ts, updn_up);
+}
+
+/** Convert sampled data to screen coordinates. */
+static void s3c24xx_ts_convert_samples(int smp0, int smp1, int *x, int *y)
+{
+	/*
+	 * The orientation and display dimensions are GTA02-specific and the
+	 * calibration values might even specific to the individual piece
+	 * of hardware.
+	 *
+	 * The calibration values can be obtained by touching corners
+	 * of the screen with the stylus and noting the sampled values.
+	 */
+	*x = lin_map_range(smp1, 0xa1, 0x396, 0, 479);
+	*y = lin_map_range(smp0, 0x69, 0x38a, 639, 0);
+}
+
+/** Map integer from one range to another range in a linear fashion.
+ *
+ * i0 < i1 is required. i0 is mapped to o0, i1 to o1. If o1 < o0, then the
+ * mapping will be descending. If v is outside of [i0, i1], it is clamped.
+ *
+ * @param v	Value to map.
+ * @param i0	Lower bound of input range.
+ * @param i1	Upper bound of input range.
+ * @param o0	First bound of output range.
+ * @param o1	Second bound of output range.
+ *
+ * @return	Mapped value ov, o0 <= ov <= o1.
+ */
+static int lin_map_range(int v, int i0, int i1, int o0, int o1)
+{
+	if (v < i0)
+		v = i0;
+
+	if (v > i1)
+		v = i1;
+
+	return o0 + (o1 - o0) * (v - i0) / (i1 - i0);
+}
+
+/** Handle mouse client connection. */
+static void s3c24xx_ts_connection(ipc_callid_t iid, ipc_call_t *icall)
+{
+	ipc_callid_t callid;
+	ipc_call_t call;
+	int retval;
+
+	ipc_answer_0(iid, EOK);
+
+	while (1) {
+		callid = async_get_call(&call);
+		switch (IPC_GET_METHOD(call)) {
+		case IPC_M_PHONE_HUNGUP:
+			if (ts->client_phone != -1) {
+				ipc_hangup(ts->client_phone);
+				ts->client_phone = -1;
+			}
+
+			ipc_answer_0(callid, EOK);
+			return;
+		case IPC_M_CONNECT_TO_ME:
+			if (ts->client_phone != -1) {
+				retval = ELIMIT;
+				break;
+			}
+			ts->client_phone = IPC_GET_ARG5(call);
+			retval = 0;
+			break;
+		default:
+			retval = EINVAL;
+		}
+		ipc_answer_0(callid, retval);
+	}
+}
+
+/** @}
+ */
Index: uspace/srv/hid/s3c24xx_ts/s3c24xx_ts.h
===================================================================
--- uspace/srv/hid/s3c24xx_ts/s3c24xx_ts.h	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
+++ uspace/srv/hid/s3c24xx_ts/s3c24xx_ts.h	(revision 527298a2333d7b6963d6547e3f3c42f0bea1e8af)
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2010 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup genarch
+ * @{
+ */
+/**
+ * @file
+ * @brief Samsung S3C24xx on-chip ADC and touch-screen interface driver.
+ */
+
+#ifndef S3C24XX_TS_H_
+#define S3C24XX_TS_H_
+
+#include <sys/types.h>
+
+/** S3C24xx ADC and touch-screen I/O */
+typedef struct {
+	uint32_t con;
+	uint32_t tsc;
+	uint32_t dly;
+	uint32_t dat0;
+	uint32_t dat1;
+	uint32_t updn;
+} s3c24xx_adc_io_t;
+
+/* Fields in ADCCON register */
+#define ADCCON_ECFLG		0x8000
+#define ADCCON_PRSCEN		0x4000
+
+#define ADCCON_PRSCVL(val)	(((val) & 0xff) << 6)
+
+#define ADCCON_SEL_MUX(smux)	(((smux) & 7) << 3)
+
+#define ADCCON_STDBM		0x0004
+#define ADCCON_READ_START	0x0002
+#define ADCCON_ENABLE_START	0x0001
+
+/* Values for ADCCON_SEL_MUX */
+#define SMUX_AIN0		0
+#define SMUX_AIN1		1
+#define SMUX_AIN2		2
+#define SMUX_AIN3		3
+#define SMUX_YM			4
+#define SMUX_YP			5
+#define SMUX_XM			6
+#define SMUX_XP			7
+
+
+/* Fields in ADCTSC register */
+#define ADCTSC_DSUD_UP		0x0100
+#define ADCTSC_YM_ENABLE	0x0080
+#define ADCTSC_YP_DISABLE	0x0040
+#define ADCTSC_XM_ENABLE	0x0020
+#define ADCTSC_XP_DISABLE	0x0010
+#define ADCTSC_PULLUP_DISABLE	0x0008
+#define ADCTSC_AUTO_PST		0x0004
+
+#define ADCTSC_XY_PST_NOOP	0x0000
+#define ADCTSC_XY_PST_X		0x0001
+#define ADCTSC_XY_PST_Y		0x0002
+#define ADCTSC_XY_PST_WAITINT	0x0003
+#define ADCTSC_XY_PST_MASK	0x0003
+
+/* Fields in ADCDAT0, ADCDAT1 registers */
+#define ADCDAT_UPDOWN		0x8000
+#define ADCDAT_AUTO_PST		0x4000
+
+/* Fields in ADCUPDN register */
+#define ADCUPDN_TSC_UP		0x0002
+#define ADCUPDN_TSC_DN		0x0001
+
+/** Touchscreen interrupt number */
+#define S3C24XX_TS_INR		31
+
+/** Touchscreen I/O address */
+#define S3C24XX_TS_ADDR		0x58000000
+
+typedef enum {
+	ts_wait_pendown,
+	ts_sample_pos,
+	ts_wait_penup
+} ts_state_t;
+
+typedef enum {
+	updn_up,
+	updn_down
+} ts_updn_t;
+
+/** S3C24xx touchscreen driver instance */
+typedef struct {
+	/** Physical device address */
+	uintptr_t paddr;
+
+	/** Device I/O structure */
+	s3c24xx_adc_io_t *io;
+
+	/** Callback phone to the client */
+	int client_phone;
+
+	/** Device handle */
+	dev_handle_t dev_handle;
+
+	/** Device/driver state */
+	ts_state_t state;
+
+	/** Previous position reported to client. */
+	int last_x;
+	int last_y;
+} s3c24xx_ts_t;
+
+#endif
+
+/** @}
+ */
