Author: jchandra
Date: Tue Mar 27 09:48:18 2012
New Revision: 233537
URL: http://svn.freebsd.org/changeset/base/233537
Log:
Move driver for DS1374 RTC to sys/dev/iicbus
The earlier version of the driver is sys/mips/rmi/dev/iic/ds1374u.c
Convert all references to ds1374u to ds1374, and use DEVMETHOD_END.
Also update the license header as Netlogic is now Broadcom.
Added:
head/sys/dev/iicbus/ds1374.c (contents, props changed)
Modified:
head/sys/conf/NOTES
head/sys/conf/files
Modified: head/sys/conf/NOTES
==============================================================================
--- head/sys/conf/NOTES Tue Mar 27 07:57:41 2012 (r233536)
+++ head/sys/conf/NOTES Tue Mar 27 09:48:18 2012 (r233537)
@@ -2547,9 +2547,11 @@ device iicsmb # smb over i2c bridge
# I2C peripheral devices
#
# ds133x Dallas Semiconductor DS1337, DS1338 and DS1339 RTC
+# ds1374 Dallas Semiconductor DS1374 RTC
# ds1672 Dallas Semiconductor DS1672 RTC
#
device ds133x
+device ds1374
device ds1672
# Parallel-Port Bus
Modified: head/sys/conf/files
==============================================================================
--- head/sys/conf/files Tue Mar 27 07:57:41 2012 (r233536)
+++ head/sys/conf/files Tue Mar 27 09:48:18 2012 (r233537)
@@ -1149,6 +1149,7 @@ dev/ieee488/tnt4882.c optional tnt4882
dev/ieee488/upd7210.c optional pcii | tnt4882
dev/iicbus/ad7418.c optional ad7418
dev/iicbus/ds133x.c optional ds133x
+dev/iicbus/ds1374.c optional ds1374
dev/iicbus/ds1672.c optional ds1672
dev/iicbus/icee.c optional icee
dev/iicbus/if_ic.c optional ic
Added: head/sys/dev/iicbus/ds1374.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/iicbus/ds1374.c Tue Mar 27 09:48:18 2012
(r233537)
@@ -0,0 +1,143 @@
+/*-
+ * Copyright (c) 2003-2012 Broadcom Corporation
+ * 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 BROADCOM ``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 BROADCOM 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/clock.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/rman.h>
+
+#include <mips/include/bus.h>
+#include <mips/include/cpu.h>
+#include <mips/include/cpufunc.h>
+#include <mips/include/frame.h>
+#include <mips/include/resource.h>
+
+#include <dev/iicbus/iiconf.h>
+#include <dev/iicbus/iicbus.h>
+
+#include "iicbus_if.h"
+#include "clock_if.h"
+
+#define DS1374_RTC_COUNTER 0 /* counter (bytes 0-3) */
+
+struct ds1374_softc {
+ uint32_t sc_addr;
+ device_t sc_dev;
+};
+
+static int
+ds1374_probe(device_t dev)
+{
+ device_set_desc(dev, "DS1374 RTC");
+ return (0);
+}
+
+static int
+ds1374_attach(device_t dev)
+{
+ struct ds1374_softc *sc = device_get_softc(dev);
+
+ if(sc==NULL) {
+ printf("ds1374_attach device_get_softc failed\n");
+ return (0);
+ }
+ sc->sc_dev = dev;
+ sc->sc_addr = iicbus_get_addr(dev);
+
+ clock_register(dev, 1000);
+ return (0);
+}
+
+static int
+ds1374_settime(device_t dev, struct timespec *ts)
+{
+ /* NB: register pointer precedes actual data */
+ uint8_t data[5] = { DS1374_RTC_COUNTER };
+ struct ds1374_softc *sc = device_get_softc(dev);
+ struct iic_msg msgs[1] = {
+ { sc->sc_addr, IIC_M_WR, 5, data },
+ };
+
+ data[1] = (ts->tv_sec >> 0) & 0xff;
+ data[2] = (ts->tv_sec >> 8) & 0xff;
+ data[3] = (ts->tv_sec >> 16) & 0xff;
+ data[4] = (ts->tv_sec >> 24) & 0xff;
+
+ return iicbus_transfer(dev, msgs, 1);
+}
+
+static int
+ds1374_gettime(device_t dev, struct timespec *ts)
+{
+ struct ds1374_softc *sc = device_get_softc(dev);
+ uint8_t addr[1] = { DS1374_RTC_COUNTER };
+ uint8_t secs[4];
+ struct iic_msg msgs[2] = {
+ { sc->sc_addr, IIC_M_WR, 1, addr },
+ { sc->sc_addr, IIC_M_RD, 4, secs },
+ };
+ int error;
+
+ error = iicbus_transfer(dev, msgs, 2);
+ if (error == 0) {
+ /* counter has seconds since epoch */
+ ts->tv_sec = (secs[3] << 24) | (secs[2] << 16)
+ | (secs[1] << 8) | (secs[0] << 0);
+ ts->tv_nsec = 0;
+ }
+ return error;
+}
+
+static device_method_t ds1374_methods[] = {
+ DEVMETHOD(device_probe, ds1374_probe),
+ DEVMETHOD(device_attach, ds1374_attach),
+
+ DEVMETHOD(clock_gettime, ds1374_gettime),
+ DEVMETHOD(clock_settime, ds1374_settime),
+
+ DEVMETHOD_END
+};
+
+static driver_t ds1374_driver = {
+ "ds1374_rtc",
+ ds1374_methods,
+ sizeof(struct ds1374_softc),
+};
+static devclass_t ds1374_devclass;
+
+DRIVER_MODULE(ds1374, iicbus, ds1374_driver, ds1374_devclass, 0, 0);
+MODULE_VERSION(ds1374, 1);
+MODULE_DEPEND(ds1374, iicbus, 1, 1, 1);
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