Module Name: src
Committed By: tsutsui
Date: Thu Mar 9 14:05:59 UTC 2017
Modified Files:
src/distrib/sets/lists/comp: md.luna68k
src/etc/etc.luna68k: MAKEDEV.conf
src/sys/arch/luna68k/conf: GENERIC INSTALL files.luna68k majors.luna68k
src/sys/arch/luna68k/dev: lcd.c
src/sys/arch/luna68k/include: Makefile
src/sys/arch/luna68k/luna68k: machdep.c mainbus.c
Added Files:
src/sys/arch/luna68k/include: lcd.h
Log Message:
Add a driver for LUNA's front panel LCD. Ported from OpenBSD/luna88k.
Reviewed by enami@. Tested by Naruaki Etomi and me.
A 68k LUNA with this driver will be demonstrated at AsiaBSDCon NetBSD booth
by Etomi-san, with LUNA-88K2 running OpenBSD/luna88k by Kenji Aoyama.
To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/distrib/sets/lists/comp/md.luna68k
cvs rdiff -u -r1.10 -r1.11 src/etc/etc.luna68k/MAKEDEV.conf
cvs rdiff -u -r1.120 -r1.121 src/sys/arch/luna68k/conf/GENERIC
cvs rdiff -u -r1.20 -r1.21 src/sys/arch/luna68k/conf/INSTALL
cvs rdiff -u -r1.25 -r1.26 src/sys/arch/luna68k/conf/files.luna68k
cvs rdiff -u -r1.21 -r1.22 src/sys/arch/luna68k/conf/majors.luna68k
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/luna68k/dev/lcd.c
cvs rdiff -u -r1.19 -r1.20 src/sys/arch/luna68k/include/Makefile
cvs rdiff -u -r0 -r1.1 src/sys/arch/luna68k/include/lcd.h
cvs rdiff -u -r1.99 -r1.100 src/sys/arch/luna68k/luna68k/machdep.c
cvs rdiff -u -r1.14 -r1.15 src/sys/arch/luna68k/luna68k/mainbus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/distrib/sets/lists/comp/md.luna68k
diff -u src/distrib/sets/lists/comp/md.luna68k:1.21 src/distrib/sets/lists/comp/md.luna68k:1.22
--- src/distrib/sets/lists/comp/md.luna68k:1.21 Sat Dec 3 17:38:02 2016
+++ src/distrib/sets/lists/comp/md.luna68k Thu Mar 9 14:05:58 2017
@@ -1,4 +1,4 @@
-# $NetBSD: md.luna68k,v 1.21 2016/12/03 17:38:02 tsutsui Exp $
+# $NetBSD: md.luna68k,v 1.22 2017/03/09 14:05:58 tsutsui Exp $
./usr/include/ieeefp.h comp-c-include
./usr/include/luna68k comp-c-include
./usr/include/luna68k/_G_config.h comp-obsolete obsolete
@@ -27,6 +27,7 @@
./usr/include/luna68k/int_types.h comp-c-include
./usr/include/luna68k/intr.h comp-c-include
./usr/include/luna68k/kcore.h comp-c-include
+./usr/include/luna68k/lcd.h comp-c-include
./usr/include/luna68k/limits.h comp-c-include
./usr/include/luna68k/lock.h comp-c-include
./usr/include/luna68k/math.h comp-c-include
Index: src/etc/etc.luna68k/MAKEDEV.conf
diff -u src/etc/etc.luna68k/MAKEDEV.conf:1.10 src/etc/etc.luna68k/MAKEDEV.conf:1.11
--- src/etc/etc.luna68k/MAKEDEV.conf:1.10 Thu Feb 16 13:13:39 2017
+++ src/etc/etc.luna68k/MAKEDEV.conf Thu Mar 9 14:05:58 2017
@@ -1,10 +1,10 @@
-# $NetBSD: MAKEDEV.conf,v 1.10 2017/02/16 13:13:39 tsutsui Exp $
+# $NetBSD: MAKEDEV.conf,v 1.11 2017/03/09 14:05:58 tsutsui Exp $
all_md)
makedev ttya sd0 sd1 sd2 sd3 cd0 cd1 st0 st1
makedev wscons
makedev scsibus0 scsibus1
- makedev xp
+ makedev xp lcd
;;
tty[ab])
@@ -26,3 +26,8 @@ xp)
major=40; minor=0; mode=0644
mkdev xp c $major $minor $mode
;;
+
+lcd)
+ major=41; minor=0; mode=0644
+ mkdev lcd c $major $minor $mode
+ ;;
Index: src/sys/arch/luna68k/conf/GENERIC
diff -u src/sys/arch/luna68k/conf/GENERIC:1.120 src/sys/arch/luna68k/conf/GENERIC:1.121
--- src/sys/arch/luna68k/conf/GENERIC:1.120 Sat Dec 3 17:38:02 2016
+++ src/sys/arch/luna68k/conf/GENERIC Thu Mar 9 14:05:58 2017
@@ -1,4 +1,4 @@
-# $NetBSD: GENERIC,v 1.120 2016/12/03 17:38:02 tsutsui Exp $
+# $NetBSD: GENERIC,v 1.121 2017/03/09 14:05:58 tsutsui Exp $
#
# GENERIC machine description file
#
@@ -22,7 +22,7 @@ include "arch/luna68k/conf/std.luna68k"
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
-#ident "GENERIC-$Revision: 1.120 $"
+#ident "GENERIC-$Revision: 1.121 $"
makeoptions COPTS="-O2 -fno-reorder-blocks" # see share/mk/sys.mk
@@ -151,6 +151,9 @@ mainbus0 at root
clock0 at mainbus0
+# LCD on front panel
+lcd0 at mainbus0
+
# uPD7201 SIO
sio0 at mainbus0
siotty0 at sio0 # ttya
Index: src/sys/arch/luna68k/conf/INSTALL
diff -u src/sys/arch/luna68k/conf/INSTALL:1.20 src/sys/arch/luna68k/conf/INSTALL:1.21
--- src/sys/arch/luna68k/conf/INSTALL:1.20 Sun Sep 18 14:20:23 2016
+++ src/sys/arch/luna68k/conf/INSTALL Thu Mar 9 14:05:58 2017
@@ -1,4 +1,4 @@
-# $NetBSD: INSTALL,v 1.20 2016/09/18 14:20:23 christos Exp $
+# $NetBSD: INSTALL,v 1.21 2017/03/09 14:05:58 tsutsui Exp $
#
# config for installation ramdisk kernel
#
@@ -130,6 +130,9 @@ mainbus0 at root
clock0 at mainbus0
+# LCD on front panel
+lcd0 at mainbus0
+
# uPD7201 SIO
sio0 at mainbus0
siotty0 at sio0 # ttya
Index: src/sys/arch/luna68k/conf/files.luna68k
diff -u src/sys/arch/luna68k/conf/files.luna68k:1.25 src/sys/arch/luna68k/conf/files.luna68k:1.26
--- src/sys/arch/luna68k/conf/files.luna68k:1.25 Sat Dec 3 17:38:02 2016
+++ src/sys/arch/luna68k/conf/files.luna68k Thu Mar 9 14:05:58 2017
@@ -1,5 +1,5 @@
#
-# $NetBSD: files.luna68k,v 1.25 2016/12/03 17:38:02 tsutsui Exp $
+# $NetBSD: files.luna68k,v 1.26 2017/03/09 14:05:58 tsutsui Exp $
#
maxpartitions 8
maxusers 2 8 64
@@ -22,7 +22,6 @@ file arch/m68k/m68k/procfs_machdep.c pro
file arch/m68k/m68k/sys_machdep.c
file arch/m68k/m68k/vm_machdep.c
file dev/cons.c
-file arch/luna68k/dev/lcd.c
device mainbus {}
attach mainbus at root
@@ -32,6 +31,10 @@ device clock
attach clock at mainbus
file arch/luna68k/dev/timekeeper.c clock
+device lcd
+attach lcd at mainbus
+file arch/luna68k/dev/lcd.c lcd needs-flag
+
attach le at mainbus: le24
file arch/luna68k/dev/if_le.c le
Index: src/sys/arch/luna68k/conf/majors.luna68k
diff -u src/sys/arch/luna68k/conf/majors.luna68k:1.21 src/sys/arch/luna68k/conf/majors.luna68k:1.22
--- src/sys/arch/luna68k/conf/majors.luna68k:1.21 Sat Dec 3 17:38:02 2016
+++ src/sys/arch/luna68k/conf/majors.luna68k Thu Mar 9 14:05:58 2017
@@ -1,4 +1,4 @@
-# $NetBSD: majors.luna68k,v 1.21 2016/12/03 17:38:02 tsutsui Exp $
+# $NetBSD: majors.luna68k,v 1.22 2017/03/09 14:05:58 tsutsui Exp $
#
# Device majors for luna68k
#
@@ -37,6 +37,7 @@ device-major cgd char 37 block 15 cgd
device-major ksyms char 38 ksyms
device-major wsfont char 39 wsfont
device-major xp char 40 xp
+device-major lcd char 41 lcd
device-major nsmb char 98 nsmb
Index: src/sys/arch/luna68k/dev/lcd.c
diff -u src/sys/arch/luna68k/dev/lcd.c:1.7 src/sys/arch/luna68k/dev/lcd.c:1.8
--- src/sys/arch/luna68k/dev/lcd.c:1.7 Sat Nov 12 13:44:26 2011
+++ src/sys/arch/luna68k/dev/lcd.c Thu Mar 9 14:05:58 2017
@@ -1,4 +1,5 @@
-/* $NetBSD: lcd.c,v 1.7 2011/11/12 13:44:26 tsutsui Exp $ */
+/* $NetBSD: lcd.c,v 1.8 2017/03/09 14:05:58 tsutsui Exp $ */
+/* $OpenBSD: lcd.c,v 1.7 2015/02/10 22:42:35 miod Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -31,19 +32,21 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: lcd.c,v 1.7 2011/11/12 13:44:26 tsutsui Exp $");
-
-/*
- * XXX
- * Following code segments are subject to change.
- * XXX
- */
+__KERNEL_RCSID(0, "$NetBSD: lcd.c,v 1.8 2017/03/09 14:05:58 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
+#include <sys/conf.h>
#include <sys/device.h>
+#include <sys/ioctl.h>
+#include <sys/fcntl.h>
+#include <sys/errno.h>
+#include <machine/autoconf.h>
#include <machine/cpu.h>
+#include <machine/lcd.h>
+
+#include "ioconf.h"
#define PIO1_MODE_OUTPUT 0x84
#define PIO1_MODE_INPUT 0x94
@@ -65,6 +68,8 @@ __KERNEL_RCSID(0, "$NetBSD: lcd.c,v 1.7
#define LCD_HOME 0x02
#define LCD_LOCATE(X, Y) (((Y) & 1 ? 0xc0 : 0x80) | ((X) & 0x0f))
+#define LCD_MAXBUFLEN 80
+
struct pio {
volatile u_int8_t portA;
volatile u_int8_t portB;
@@ -72,6 +77,39 @@ struct pio {
volatile u_int8_t cntrl;
};
+/* Autoconf stuff */
+static int lcd_match(device_t, cfdata_t, void *);
+static void lcd_attach(device_t, device_t, void *);
+
+dev_type_open(lcdopen);
+dev_type_close(lcdclose);
+dev_type_write(lcdwrite);
+dev_type_ioctl(lcdioctl);
+
+const struct cdevsw lcd_cdevsw = {
+ .d_open = lcdopen,
+ .d_close = lcdclose,
+ .d_read = noread,
+ .d_write = lcdwrite,
+ .d_ioctl = lcdioctl,
+ .d_stop = nostop,
+ .d_tty = notty,
+ .d_poll = nopoll,
+ .d_mmap = nommap,
+ .d_kqfilter = nokqfilter,
+ .d_discard = nodiscard,
+ .d_flag = 0
+};
+
+struct lcd_softc {
+ device_t sc_dev;
+
+ bool sc_opened;
+};
+
+CFATTACH_DECL_NEW(lcd, sizeof(struct lcd_softc),
+ lcd_match, lcd_attach, NULL, NULL);
+
void lcdbusywait(void);
void lcdput(int);
void lcdctrl(int);
@@ -81,6 +119,165 @@ void greeting(void);
static char lcd_boot_message1[] = " NetBSD/luna68k ";
static char lcd_boot_message2[] = " SX-9100/DT ";
+/*
+ * Autoconf functions
+ */
+static int
+lcd_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct mainbus_attach_args *ma = aux;
+
+ if (strcmp(ma->ma_name, lcd_cd.cd_name))
+ return 0;
+ if (badaddr((void *)ma->ma_addr, 4))
+ return 0;
+ return 1;
+}
+
+static void
+lcd_attach(device_t parent, device_t self, void *aux)
+{
+
+ printf("\n");
+
+ /* Say hello to the world on LCD. */
+ greeting();
+}
+
+/*
+ * open/close/write/ioctl
+ */
+int
+lcdopen(dev_t dev, int flags, int fmt, struct lwp *l)
+{
+ int unit;
+ struct lcd_softc *sc;
+
+ unit = minor(dev);
+ sc = device_lookup_private(&lcd_cd, unit);
+ if (sc == NULL)
+ return ENXIO;
+ if (sc->sc_opened)
+ return EBUSY;
+ sc->sc_opened = true;
+
+ return 0;
+}
+
+int
+lcdclose(dev_t dev, int flags, int fmt, struct lwp *l)
+{
+ int unit;
+ struct lcd_softc *sc;
+
+ unit = minor(dev);
+ sc = device_lookup_private(&lcd_cd, unit);
+ sc->sc_opened = false;
+
+ return 0;
+}
+
+int
+lcdwrite(dev_t dev, struct uio *uio, int flag)
+{
+ int error;
+ size_t len, i;
+ char buf[LCD_MAXBUFLEN];
+
+ len = uio->uio_resid;
+
+ if (len > LCD_MAXBUFLEN)
+ return EIO;
+
+ error = uiomove(buf, len, uio);
+ if (error)
+ return EIO;
+
+ for (i = 0; i < len; i++) {
+ lcdput((int)buf[i]);
+ }
+
+ return 0;
+}
+
+int
+lcdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
+{
+ int val;
+
+ /* check if the device opened with write mode */
+ switch (cmd) {
+ case LCDCLS:
+ case LCDHOME:
+ case LCDMODE:
+ case LCDDISP:
+ case LCDMOVE:
+ case LCDSEEK:
+ case LCDRESTORE:
+ if ((flag & FWRITE) == 0)
+ return EACCES;
+ break;
+ }
+
+ switch (cmd) {
+ case LCDCLS:
+ lcdctrl(LCD_CLS);
+ break;
+
+ case LCDHOME:
+ lcdctrl(LCD_HOME);
+ break;
+
+ case LCDMODE:
+ val = *(int *)addr;
+ switch (val) {
+ case LCDMODE_C_LEFT:
+ case LCDMODE_C_RIGHT:
+ case LCDMODE_D_LEFT:
+ case LCDMODE_D_RIGHT:
+ lcdctrl(val);
+ break;
+ default:
+ return EINVAL;
+ }
+ break;
+
+ case LCDDISP:
+ val = *(int *)addr;
+ if ((val & 0x7) != val)
+ return EINVAL;
+ lcdctrl(val | 0x8);
+ break;
+
+ case LCDMOVE:
+ val = *(int *)addr;
+ switch (val) {
+ case LCDMOVE_C_LEFT:
+ case LCDMOVE_C_RIGHT:
+ case LCDMOVE_D_LEFT:
+ case LCDMOVE_D_RIGHT:
+ lcdctrl(val);
+ break;
+ default:
+ return EINVAL;
+ }
+ break;
+
+ case LCDSEEK:
+ val = *(int *)addr & 0x7f;
+ lcdctrl(val | 0x80);
+ break;
+
+ case LCDRESTORE:
+ greeting();
+ break;
+
+ default:
+ return ENOTTY;
+ }
+ return EPASSTHROUGH;
+}
+
void
lcdbusywait(void)
{
Index: src/sys/arch/luna68k/include/Makefile
diff -u src/sys/arch/luna68k/include/Makefile:1.19 src/sys/arch/luna68k/include/Makefile:1.20
--- src/sys/arch/luna68k/include/Makefile:1.19 Sat Dec 3 17:38:02 2016
+++ src/sys/arch/luna68k/include/Makefile Thu Mar 9 14:05:58 2017
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.19 2016/12/03 17:38:02 tsutsui Exp $
+# $NetBSD: Makefile,v 1.20 2017/03/09 14:05:58 tsutsui Exp $
INCSDIR= /usr/include/luna68k
@@ -12,7 +12,7 @@ INCS= ansi.h aout_machdep.h asm.h autoco
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
intr.h \
kcore.h \
- limits.h lock.h \
+ lcd.h limits.h lock.h \
math.h mcontext.h mutex.h \
param.h pcb.h pmap.h pmc.h proc.h profile.h psl.h pte.h ptrace.h reg.h \
rwlock.h setjmp.h signal.h \
Index: src/sys/arch/luna68k/luna68k/machdep.c
diff -u src/sys/arch/luna68k/luna68k/machdep.c:1.99 src/sys/arch/luna68k/luna68k/machdep.c:1.100
--- src/sys/arch/luna68k/luna68k/machdep.c:1.99 Fri Aug 21 10:48:06 2015
+++ src/sys/arch/luna68k/luna68k/machdep.c Thu Mar 9 14:05:59 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.99 2015/08/21 10:48:06 christos Exp $ */
+/* $NetBSD: machdep.c,v 1.100 2017/03/09 14:05:59 tsutsui Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.99 2015/08/21 10:48:06 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.100 2017/03/09 14:05:59 tsutsui Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
@@ -319,7 +319,6 @@ cpu_startup(void)
{
vaddr_t minaddr, maxaddr;
char pbuf[9];
- extern void greeting(void);
if (fputype != FPU_NONE)
m68k_make_fpu_idle_frame();
@@ -348,11 +347,6 @@ cpu_startup(void)
format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free));
printf("avail memory = %s\n", pbuf);
-
- /*
- * Say "Hi" to the world
- */
- greeting();
}
void
Index: src/sys/arch/luna68k/luna68k/mainbus.c
diff -u src/sys/arch/luna68k/luna68k/mainbus.c:1.14 src/sys/arch/luna68k/luna68k/mainbus.c:1.15
--- src/sys/arch/luna68k/luna68k/mainbus.c:1.14 Sat Dec 3 17:38:02 2016
+++ src/sys/arch/luna68k/luna68k/mainbus.c Thu Mar 9 14:05:59 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: mainbus.c,v 1.14 2016/12/03 17:38:02 tsutsui Exp $ */
+/* $NetBSD: mainbus.c,v 1.15 2017/03/09 14:05:59 tsutsui Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.14 2016/12/03 17:38:02 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.15 2017/03/09 14:05:59 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -42,6 +42,7 @@ __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v
static const struct mainbus_attach_args luna_devs[] = {
{ "clock", 0x45000000, -1 }, /* Mostek TimeKeeper */
+ { "lcd", 0x4d000000, -1 }, /* Sharp LM16X212 LCD module */
{ "le", 0xf1000000, 3 }, /* Am7990 */
{ "sio", 0x51000000, 6 }, /* uPD7201A */
{ "xp", 0x71000000, 1 }, /* HD647180XP */
@@ -51,6 +52,7 @@ static const struct mainbus_attach_args
static const struct mainbus_attach_args luna2_devs[] = {
{ "clock", 0x45000000, -1 }, /* Dallas TimeKeeper */
+ { "lcd", 0x4d000000, -1 }, /* Sharp LM16X212 LCD module */
{ "le", 0xf1000000, 3 }, /* Am7990 */
{ "sio", 0x51000000, 6 }, /* uPD7201A */
{ "xp", 0x71000000, 1 }, /* HD647180XP */
Added files:
Index: src/sys/arch/luna68k/include/lcd.h
diff -u /dev/null src/sys/arch/luna68k/include/lcd.h:1.1
--- /dev/null Thu Mar 9 14:05:59 2017
+++ src/sys/arch/luna68k/include/lcd.h Thu Mar 9 14:05:58 2017
@@ -0,0 +1,67 @@
+/* $NetBSD: lcd.h,v 1.1 2017/03/09 14:05:58 tsutsui Exp $ */
+/* $OpenBSD: lcd.h,v 1.2 2011/03/23 16:54:35 pirofti Exp $ */
+
+/*
+ * Copyright (c) 2007 Kenji AOYAMA <[email protected]>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+#ifndef _MACHINE_LCD_H_
+#define _MACHINE_LCD_H_
+
+/*
+ * NetBSD/luna68k LCD driver
+ * (taken from OpenBSD/luna88k LCD driver)
+ */
+
+/* The ioctl defines */
+
+#define LCDCLS _IO('L', 1) /* Clear LCD screen */
+#define LCDHOME _IO('L', 2) /* Move the cursor to left-upper */
+#define LCDMODE _IOW('L', 3, int) /* Set the data entry mode */
+#define LCDDISP _IOW('L', 4, int) /* Blink, cursor, and display on/off */
+#define LCDMOVE _IOW('L', 5, int) /* Move cursor / shift display area */
+#define LCDSEEK _IOW('L', 6, int) /* Move the cursor to specified position */
+#define LCDRESTORE _IO('L', 7) /* Restore boot-time LCD message */
+
+/* argument value for each ioctl */
+
+/* LCDMODE; when a character data is written, then ... */
+#define LCDMODE_C_LEFT 0x04 /* cursor moves left */
+#define LCDMODE_C_RIGHT 0x06 /* cursor moves right */
+#define LCDMODE_D_LEFT 0x05 /* display area shifts to left */
+#define LCDMODE_D_RIGHT 0x07 /* display area shifts to right */
+
+/* LCDDISP; you can use these values or'ed */
+#define LCD_DISPLAY 0x04 /* LCD display on */
+#define LCD_CURSOR 0x02 /* Cursor on */
+#define LCD_BLINK 0x01 /* Blink on */
+
+/* LCDMOVE; just move the cursor or shift the display area */
+#define LCDMOVE_C_LEFT 0x10 /* cursor moves left */
+#define LCDMOVE_C_RIGHT 0x14 /* cursor moves right */
+#define LCDMOVE_D_LEFT 0x18 /* display area shifts to left */
+#define LCDMOVE_D_RIGHT 0x1c /* display area shifts to right */
+
+#endif /* _MACHINE_LCD_H_ */
