[src/trunk]: src/sys/dev/ic New time-of-day clock chip drivers. These impleme...

To: source-changes-hg%NetBSD.org@localhost
Subject: [src/trunk]: src/sys/dev/ic New time-of-day clock chip drivers. These impleme...
From: pk <pk%NetBSD.org@localhost>
Date: Fri, 24 Jan 2020 07:50:45 +0000
details:   https://anonhg.NetBSD.org/src/rev/41e236a9a2d7
branches:  trunk
changeset: 495298:41e236a9a2d7
user:      pk <pk%NetBSD.org@localhost>
date:      Tue Jul 25 22:33:02 2000 +0000

description:
New time-of-day clock chip drivers. These implement the todr(9) interface.

diffstat:

 sys/dev/ic/intersil7170.c |  206 +++++++++++++++++++++++++++++++++++
 sys/dev/ic/intersil7170.h |   16 ++-
 sys/dev/ic/mk48txx.c      |  267 ++++++++++++++++++++++++++++++++++++++++++++++
 sys/dev/ic/mk48txxreg.h   |   85 ++++++++++++++
 4 files changed, 573 insertions(+), 1 deletions(-)

diffs (truncated from 605 to 300 lines):

diff -r 738f7574e025 -r 41e236a9a2d7 sys/dev/ic/intersil7170.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/ic/intersil7170.c Tue Jul 25 22:33:02 2000 +0000
@@ -0,0 +1,206 @@
+/*     $NetBSD: intersil7170.c,v 1.1 2000/07/25 22:33:02 pk Exp $ */
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Paul Kranenburg.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * Intersil 7170 time-of-day chip subroutines.
+ */
+
+#include <sys/param.h>
+#include <sys/malloc.h>
+#include <sys/systm.h>
+#include <sys/errno.h>
+
+#include <machine/bus.h>
+#include <dev/clock_subr.h>
+#include <dev/ic/intersil7170.h>
+
+#define intersil_command(run, interrupt) \
+       (run | interrupt | INTERSIL_CMD_FREQ_32K | INTERSIL_CMD_24HR_MODE | \
+        INTERSIL_CMD_NORMAL_MODE)
+
+struct intersil7170_softc {
+       bus_space_tag_t         sil_bt;
+       bus_space_handle_t      sil_bh;
+       int                     sil_year0;
+};
+
+int intersil7170_gettime(todr_chip_handle_t, struct timeval *);
+int intersil7170_settime(todr_chip_handle_t, struct timeval *);
+int intersil7170_getcal(todr_chip_handle_t, int *);
+int intersil7170_setcal(todr_chip_handle_t, int);
+
+int intersil7170_auto_century_adjust = 1;
+
+todr_chip_handle_t
+intersil7170_attach(bt, bh, year0)
+       bus_space_tag_t bt;
+       bus_space_handle_t bh;
+       int year0;
+{
+       todr_chip_handle_t handle;
+       struct intersil7170_softc *sil;
+       int sz;
+
+       printf(": intersil7170");
+
+       sz = ALIGN(sizeof(struct todr_chip_handle)) + sizeof(struct intersil7170);
+       handle = malloc(sz, M_DEVBUF, M_NOWAIT);
+       sil = (struct intersil7170_softc *)((u_long)handle +
+                                       ALIGN(sizeof(struct todr_chip_handle)));
+       handle->cookie = sil;
+       handle->todr_gettime = intersil7170_gettime;
+       handle->todr_settime = intersil7170_settime;
+       handle->todr_getcal = intersil7170_getcal;
+       handle->todr_setcal = intersil7170_setcal;
+       sil->sil_bt = bt;
+       sil->sil_bh = bh;
+       sil->sil_year0 = year0;
+
+       return (handle);
+}
+
+/*
+ * Set up the system's time, given a `reasonable' time value.
+ */
+int
+intersil7170_gettime(handle, tv)
+       todr_chip_handle_t handle;
+       struct timeval *tv;
+{
+       struct intersil7170_softc *sil = handle->cookie;
+       bus_space_tag_t bt = sil->sil_bt;
+       bus_space_handle_t bh = sil->sil_bh;
+       struct clock_ymdhms dt;
+       u_int8_t cmd;
+       int year;
+       int s;
+
+       /* No interrupts while we're fiddling with the chip */
+       s = splhigh();
+
+       /* Enable read (stop time) */
+       cmd = intersil_command(INTERSIL_CMD_STOP, INTERSIL_CMD_IENABLE);
+       bus_space_write_1(bt, bh, INTERSIL_ICMD, cmd);
+
+       /* The order of reading out the clock elements is important */
+       bus_space_read_1(bt, bh, INTERSIL_ICSEC);       /* not used */
+       dt.dt_hour = bus_space_read_1(bt, bh, INTERSIL_IHOUR);
+       dt.dt_min = bus_space_read_1(bt, bh, INTERSIL_IMIN);
+       dt.dt_sec = bus_space_read_1(bt, bh, INTERSIL_ISEC);
+       dt.dt_mon = bus_space_read_1(bt, bh, INTERSIL_IMON);
+       dt.dt_day = bus_space_read_1(bt, bh, INTERSIL_IDAY);
+       year = bus_space_read_1(bt, bh, INTERSIL_IYEAR);
+       dt.dt_wday = bus_space_read_1(bt, bh, INTERSIL_IDOW);
+
+       /* Done writing (time wears on) */
+       cmd = intersil_command(INTERSIL_CMD_RUN, INTERSIL_CMD_IENABLE);
+       bus_space_write_1(bt, bh, INTERSIL_ICMD, cmd);
+       splx(s);
+
+       year += sil->sil_year0;
+       if (year < 1970 && intersil7170_auto_century_adjust != 0)
+               year += 100;
+
+       dt.dt_year = year;
+
+       tv->tv_sec = clock_ymdhms_to_secs(&dt);
+       tv->tv_usec = 0;
+       return (0);
+}
+
+/*
+ * Reset the clock based on the current time.
+ */
+int
+intersil7170_settime(handle, tv)
+       todr_chip_handle_t handle;
+       struct timeval *tv;
+{
+       struct intersil7170_softc *sil = handle->cookie;
+       bus_space_tag_t bt = sil->sil_bt;
+       bus_space_handle_t bh = sil->sil_bh;
+       struct clock_ymdhms dt;
+       u_int8_t cmd;
+       int year;
+       int s;
+
+       clock_secs_to_ymdhms(tv->tv_sec, &dt);
+
+       year = dt.dt_year - sil->sil_year0;
+       if (year > 99 && intersil7170_auto_century_adjust != 0)
+               year -= 100;
+
+       /* No interrupts while we're fiddling with the chip */
+       s = splhigh();
+
+       /* Enable write (stop time) */
+       cmd = intersil_command(INTERSIL_CMD_STOP, INTERSIL_CMD_IENABLE);
+       bus_space_write_1(bt, bh, INTERSIL_ICMD, cmd);
+
+       /* The order of reading writing the clock elements is important */
+       bus_space_write_1(bt, bh, INTERSIL_ICSEC, 0);
+       bus_space_write_1(bt, bh, INTERSIL_IHOUR, dt.dt_hour);
+       bus_space_write_1(bt, bh, INTERSIL_IMIN, dt.dt_min);
+       bus_space_write_1(bt, bh, INTERSIL_ISEC, dt.dt_sec);
+       bus_space_write_1(bt, bh, INTERSIL_IMON, dt.dt_mon);
+       bus_space_write_1(bt, bh, INTERSIL_IDAY, dt.dt_day);
+       bus_space_write_1(bt, bh, INTERSIL_IYEAR, year);
+       bus_space_write_1(bt, bh, INTERSIL_IDOW, dt.dt_wday);
+
+       /* Done writing (time wears on) */
+       cmd = intersil_command(INTERSIL_CMD_RUN, INTERSIL_CMD_IENABLE);
+       bus_space_write_1(bt, bh, INTERSIL_ICMD, cmd);
+       splx(s);
+
+       return (0);
+}
+
+int
+intersil7170_getcal(handle, vp)
+       todr_chip_handle_t handle;
+       int *vp;
+{
+       return (EOPNOTSUPP);
+}
+
+int
+intersil7170_setcal(handle, v)
+       todr_chip_handle_t handle;
+       int v;
+{
+       return (EOPNOTSUPP);
+}
diff -r 738f7574e025 -r 41e236a9a2d7 sys/dev/ic/intersil7170.h
--- a/sys/dev/ic/intersil7170.h Tue Jul 25 22:15:00 2000 +0000
+++ b/sys/dev/ic/intersil7170.h Tue Jul 25 22:33:02 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: intersil7170.h,v 1.1 1997/05/02 06:15:28 jeremy Exp $  */
+/*     $NetBSD: intersil7170.h,v 1.2 2000/07/25 22:33:02 pk Exp $      */
 
 /*-
  * Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -65,6 +65,19 @@
     u_int8_t clk_cmd_reg;
 };
 
+/* Indices to time-of-day clock registers */
+#define INTERSIL_ICSEC 0
+#define INTERSIL_IHOUR 1
+#define INTERSIL_IMIN  2
+#define INTERSIL_ISEC  3
+#define INTERSIL_IMON  4
+#define INTERSIL_IDAY  5
+#define INTERSIL_IYEAR 6
+#define INTERSIL_IDOW  7
+
+#define INTERSIL_IINTR 16
+#define INTERSIL_ICMD  17
+
 /*  bit assignments for command register, p. 6 of 10, write-only */
 #define INTERSIL_CMD_FREQ_32K    0x0
 #define INTERSIL_CMD_FREQ_1M     0x1
@@ -96,4 +109,5 @@
 
 #define INTERSIL_INTER_BITS "\20\10PENDING\7DAYS\6HRS\5MIN\4SCDS\3DSEC\2CSEC\1ALARM"
 
+todr_chip_handle_t intersil7170_attach(bus_space_tag_t, bus_space_handle_t, int);
 #endif /* _INTERSIL7170_H */
diff -r 738f7574e025 -r 41e236a9a2d7 sys/dev/ic/mk48txx.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/ic/mk48txx.c      Tue Jul 25 22:33:02 2000 +0000
@@ -0,0 +1,267 @@
+/*     $NetBSD: mk48txx.c,v 1.1 2000/07/25 22:33:03 pk Exp $ */
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Paul Kranenburg.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * Mostek MK48T02, MK48T08, MK48T59 time-of-day chip subroutines.
+ */
+
+#include <sys/param.h>
+#include <sys/malloc.h>
+#include <sys/systm.h>
+#include <sys/errno.h>
+
+#include <machine/bus.h>
+#include <dev/clock_subr.h>
+#include <dev/ic/mk48txxreg.h>
+
+
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