[src/trunk]: src Add a driver for LUNA's front panel LCD. Ported from OpenBS...

[tsutsui <tsutsui%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5748f9a8d968
branches:  trunk
changeset: 351999:5748f9a8d968
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Thu Mar 09 14:05:58 2017 +0000

description:
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.

diffstat:

 distrib/sets/lists/comp/md.luna68k   |    3 +-
 etc/etc.luna68k/MAKEDEV.conf         |    9 +-
 sys/arch/luna68k/conf/GENERIC        |    7 +-
 sys/arch/luna68k/conf/INSTALL        |    5 +-
 sys/arch/luna68k/conf/files.luna68k  |    7 +-
 sys/arch/luna68k/conf/majors.luna68k |    3 +-
 sys/arch/luna68k/dev/lcd.c           |  213 +++++++++++++++++++++++++++++++++-
 sys/arch/luna68k/include/Makefile    |    4 +-
 sys/arch/luna68k/include/lcd.h       |   67 +++++++++++
 sys/arch/luna68k/luna68k/machdep.c   |   10 +-
 sys/arch/luna68k/luna68k/mainbus.c   |    6 +-
 11 files changed, 305 insertions(+), 29 deletions(-)

diffs (truncated from 550 to 300 lines):

diff -r 03b9a820e9d1 -r 5748f9a8d968 distrib/sets/lists/comp/md.luna68k
--- a/distrib/sets/lists/comp/md.luna68k        Thu Mar 09 11:39:43 2017 +0000
+++ b/distrib/sets/lists/comp/md.luna68k        Thu Mar 09 14:05:58 2017 +0000
@@ -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
diff -r 03b9a820e9d1 -r 5748f9a8d968 etc/etc.luna68k/MAKEDEV.conf
--- a/etc/etc.luna68k/MAKEDEV.conf      Thu Mar 09 11:39:43 2017 +0000
+++ b/etc/etc.luna68k/MAKEDEV.conf      Thu Mar 09 14:05:58 2017 +0000
@@ -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 @@
        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
+       ;;
diff -r 03b9a820e9d1 -r 5748f9a8d968 sys/arch/luna68k/conf/GENERIC
--- a/sys/arch/luna68k/conf/GENERIC     Thu Mar 09 11:39:43 2017 +0000
+++ b/sys/arch/luna68k/conf/GENERIC     Thu Mar 09 14:05:58 2017 +0000
@@ -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 @@
 
 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 @@
 
 clock0 at mainbus0
 
+# LCD on front panel
+lcd0   at mainbus0
+
 # uPD7201 SIO
 sio0   at mainbus0
 siotty0        at sio0                 # ttya
diff -r 03b9a820e9d1 -r 5748f9a8d968 sys/arch/luna68k/conf/INSTALL
--- a/sys/arch/luna68k/conf/INSTALL     Thu Mar 09 11:39:43 2017 +0000
+++ b/sys/arch/luna68k/conf/INSTALL     Thu Mar 09 14:05:58 2017 +0000
@@ -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 @@
 
 clock0 at mainbus0
 
+# LCD on front panel
+lcd0   at mainbus0
+
 # uPD7201 SIO
 sio0   at mainbus0
 siotty0        at sio0                 # ttya
diff -r 03b9a820e9d1 -r 5748f9a8d968 sys/arch/luna68k/conf/files.luna68k
--- a/sys/arch/luna68k/conf/files.luna68k       Thu Mar 09 11:39:43 2017 +0000
+++ b/sys/arch/luna68k/conf/files.luna68k       Thu Mar 09 14:05:58 2017 +0000
@@ -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/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 @@
 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
 
diff -r 03b9a820e9d1 -r 5748f9a8d968 sys/arch/luna68k/conf/majors.luna68k
--- a/sys/arch/luna68k/conf/majors.luna68k      Thu Mar 09 11:39:43 2017 +0000
+++ b/sys/arch/luna68k/conf/majors.luna68k      Thu Mar 09 14:05:58 2017 +0000
@@ -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   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
 
diff -r 03b9a820e9d1 -r 5748f9a8d968 sys/arch/luna68k/dev/lcd.c
--- a/sys/arch/luna68k/dev/lcd.c        Thu Mar 09 11:39:43 2017 +0000
+++ b/sys/arch/luna68k/dev/lcd.c        Thu Mar 09 14:05:58 2017 +0000
@@ -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 @@
 #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 @@
        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 @@
 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;