svn commit: r198156 - projects/mips/sys/dev/iicbus
Randall Stewart
rrs at FreeBSD.org
Thu Oct 15 21:07:00 UTC 2009
Author: rrs
Date: Thu Oct 15 21:06:59 2009
New Revision: 198156
URL: http://svn.freebsd.org/changeset/base/198156
Log:
These don't compile yet, but they are some of the first drivers
that will need working on to fit from 6.x -> head. But first
I must get the base to compile (wanted to get as much in the tree
as I could before my flight to India).
Added:
projects/mips/sys/dev/iicbus/xlr_eeprom.c
projects/mips/sys/dev/iicbus/xlr_rtc.c
projects/mips/sys/dev/iicbus/xlr_temperature.c
Added: projects/mips/sys/dev/iicbus/xlr_eeprom.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/mips/sys/dev/iicbus/xlr_eeprom.c Thu Oct 15 21:06:59 2009 (r198156)
@@ -0,0 +1,156 @@
+/*-
+ * Copyright (c) 2003-2009 RMI 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.
+ * 3. Neither the name of RMI Corporation, 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 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.
+ *
+ * RMI_BSD */
+
+#include <sys/cdefs.h>
+/*
+ * reading eeprom for the mac address .
+ */
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+#include <sys/resource.h>
+#include <sys/rman.h>
+#include <sys/sysctl.h>
+
+#include <machine/bus.h>
+#include <machine/cpu.h>
+#include <machine/cpufunc.h>
+#include <machine/frame.h>
+#include <machine/resource.h>
+
+#include <dev/iicbus/iiconf.h>
+
+#include "iicbus_if.h"
+
+#define IIC_M_WR 0 /* write operation */
+#define XLR_EEPROM_ADDR 0xa0 /* slave address */
+#define XLR_EEPROM_ETH_MAC_ADDR 0x20
+
+
+struct xlr_eeprom_softc {
+ device_t sc_dev;
+ struct mtx sc_mtx;
+ uint8_t mac_address[6];
+};
+
+static void xlr_eeprom_read_mac(struct xlr_eeprom_softc *);
+
+static int
+xlr_eeprom_probe(device_t dev)
+{
+ /* XXX really probe? */
+ device_set_desc(dev, "reading eeprom for mac address");
+ return (0);
+}
+
+static int
+xlr_eeprom_mac_sysctl(SYSCTL_HANDLER_ARGS)
+{
+ struct xlr_eeprom_softc *sc = arg1;
+ int temp ;
+
+ xlr_eeprom_read_mac(sc);
+ return sysctl_handle_int(oidp, &temp, 0, req);
+}
+
+
+static int
+xlr_eeprom_attach(device_t dev)
+{
+ struct xlr_eeprom_softc *sc = device_get_softc(dev);
+ struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
+ struct sysctl_oid *tree = device_get_sysctl_tree(dev);
+
+ sc->sc_dev = dev;
+
+
+ mtx_init(&sc->sc_mtx, "eeprom", "eeprom", MTX_DEF);
+
+ SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+ "eeprom-mac", CTLTYPE_INT | CTLFLAG_RD, sc, 0,
+ xlr_eeprom_mac_sysctl, "I", "mac address");
+
+ return (0);
+}
+
+static int
+xlr_eeprom_read(device_t dev, int reg)
+{
+ uint8_t addr = reg;
+ uint8_t data[1];
+ struct iic_msg msgs[2] = {
+ { XLR_EEPROM_ADDR, IIC_M_WR, 1, &addr },
+ { XLR_EEPROM_ADDR, IIC_M_RD, 1, data },
+ };
+
+ return iicbus_transfer(dev, msgs, 2) != 0 ? -1 : data[0];
+}
+
+
+static void
+xlr_eeprom_read_mac(struct xlr_eeprom_softc *sc)
+{
+ int v;
+ int i;
+
+ mtx_lock(&sc->sc_mtx);
+ printf("\nmac address is: \n");
+ for(i=0; i<6; i++){
+ v = xlr_eeprom_read(sc->sc_dev, XLR_EEPROM_ETH_MAC_ADDR+i);
+ sc->mac_address[i] = v;
+ if(i != 5)
+ printf("%x:", sc->mac_address[i]);
+ else
+ printf("%x\n", sc->mac_address[i]);
+ }
+ mtx_unlock(&sc->sc_mtx);
+}
+
+static device_method_t xlr_eeprom_methods[] = {
+ DEVMETHOD(device_probe, xlr_eeprom_probe),
+ DEVMETHOD(device_attach, xlr_eeprom_attach),
+
+ {0, 0},
+};
+
+static driver_t xlr_eeprom_driver = {
+ "xlr_eeprom",
+ xlr_eeprom_methods,
+ sizeof(struct xlr_eeprom_softc),
+};
+static devclass_t xlr_eeprom_devclass;
+
+DRIVER_MODULE(xlr_eeprom, iicbus, xlr_eeprom_driver, xlr_eeprom_devclass, 0, 0);
+MODULE_VERSION(xlr_eeprom, 1);
+MODULE_DEPEND(xlr_eeprom, iicbus, 1, 1, 1);
Added: projects/mips/sys/dev/iicbus/xlr_rtc.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/mips/sys/dev/iicbus/xlr_rtc.c Thu Oct 15 21:06:59 2009 (r198156)
@@ -0,0 +1,140 @@
+/*-
+ * Copyright (c) 2003-2009 RMI 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.
+ * 3. Neither the name of RMI Corporation, 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 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.
+ *
+ * RMI_BSD */
+
+#include <sys/cdefs.h>
+/*
+ * RTC chip sitting on the I2C bus.
+ */
+#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 "iicbus_if.h"
+#include "clock_if.h"
+
+#define IIC_M_WR 0 /* write operation */
+#define XLR_SLAVE_ADDR (0xd0 ) /* slave address */
+#define XLR_RTC_COUNTER 0 /* counter (bytes 0-3) */
+#define NANOSEC 1000000000
+
+struct xlr_rtc_softc {
+ device_t sc_dev;
+};
+
+static int
+xlr_rtc_probe(device_t dev)
+{
+ device_set_desc(dev, "RTC on XLR board");
+ return (0);
+}
+
+static int
+xlr_rtc_attach(device_t dev)
+{
+ struct xlr_rtc_softc *sc = device_get_softc(dev);
+
+ sc->sc_dev = dev;
+
+ clock_register(dev, 1000);
+ return (0);
+}
+
+static int
+xlr_rtc_gettime(device_t dev, struct timespec *ts)
+{
+ uint8_t addr[1] = { XLR_RTC_COUNTER };
+ uint8_t secs[4];
+ struct iic_msg msgs[2] = {
+ { XLR_SLAVE_ADDR, IIC_M_WR, 1, addr },
+ { XLR_SLAVE_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 = NANOSEC / 2;
+ }
+ return error;
+}
+
+static int
+xlr_rtc_settime(device_t dev, struct timespec *ts)
+{
+ /* NB: register pointer precedes actual data */
+ uint8_t data[5] = { XLR_RTC_COUNTER };
+ struct iic_msg msgs[1] = {
+ { XLR_SLAVE_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 device_method_t xlr_rtc_methods[] = {
+ DEVMETHOD(device_probe, xlr_rtc_probe),
+ DEVMETHOD(device_attach, xlr_rtc_attach),
+
+ DEVMETHOD(clock_gettime, xlr_rtc_gettime),
+ DEVMETHOD(clock_settime, xlr_rtc_settime),
+
+ {0, 0},
+};
+
+static driver_t xlr_rtc_driver = {
+ "xlr_rtc",
+ xlr_rtc_methods,
+ sizeof(struct xlr_rtc_softc),
+};
+static devclass_t xlr_rtc_devclass;
+
+DRIVER_MODULE(xlr_rtc, iicbus, xlr_rtc_driver, xlr_rtc_devclass, 0, 0);
+MODULE_VERSION(xlr_rtc, 1);
+MODULE_DEPEND(xlr_rtc, iicbus, 1, 1, 1);
Added: projects/mips/sys/dev/iicbus/xlr_temperature.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/mips/sys/dev/iicbus/xlr_temperature.c Thu Oct 15 21:06:59 2009 (r198156)
@@ -0,0 +1,161 @@
+/*-
+ * Copyright (c) 2003-2009 RMI 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.
+ * 3. Neither the name of RMI Corporation, 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 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.
+ *
+ * RMI_BSD */
+
+#include <sys/cdefs.h>
+/*
+ * temperature sensor chip sitting on the I2C bus.
+ */
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+#include <sys/resource.h>
+#include <sys/rman.h>
+#include <sys/sysctl.h>
+#include <mips/xlr/board.h>
+
+#include <machine/bus.h>
+#include <machine/cpu.h>
+#include <machine/cpufunc.h>
+#include <machine/frame.h>
+#include <machine/resource.h>
+
+#include <dev/iicbus/iiconf.h>
+
+#include "iicbus_if.h"
+
+#define IIC_M_WR 0 /* write operation */
+#define XLR_TEMPSENSOR_ADDR 0x98 /* slave address */
+#define XLR_ATX8_TEMPSENSOR_ADDR 0x9a /* slave address */
+#define XLR_TEMPSENSOR_EXT_TEMP 1
+
+
+struct xlr_temperature_softc {
+ device_t sc_dev;
+ struct mtx sc_mtx;
+ int sc_curtemp;
+ int sc_lastupdate; /* in ticks */
+};
+
+static void xlr_temperature_update(struct xlr_temperature_softc *);
+
+static int
+xlr_temperature_probe(device_t dev)
+{
+ /* XXX really probe? */
+ device_set_desc(dev, "temperature sensor on XLR");
+ return (0);
+}
+
+static int
+xlr_temperature_sysctl_temp(SYSCTL_HANDLER_ARGS)
+{
+ struct xlr_temperature_softc *sc = arg1;
+ int temp;
+
+ xlr_temperature_update(sc);
+ temp = sc->sc_curtemp ;
+ return sysctl_handle_int(oidp, &temp, 0, req);
+}
+
+
+static int
+xlr_temperature_attach(device_t dev)
+{
+ struct xlr_temperature_softc *sc = device_get_softc(dev);
+ struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
+ struct sysctl_oid *tree = device_get_sysctl_tree(dev);
+
+ sc->sc_dev = dev;
+ mtx_init(&sc->sc_mtx, "xlr_temperature", "xlr_temperature", MTX_DEF);
+
+ SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+ "temp", CTLTYPE_INT | CTLFLAG_RD, sc, 0,
+ xlr_temperature_sysctl_temp, "I", "operating temperature");
+
+ return (0);
+}
+
+static int
+xlr_temperature_read(device_t dev, int reg)
+{
+ uint8_t addr = reg;
+ uint8_t data[1];
+ struct iic_msg msgs[2] = {
+ { XLR_TEMPSENSOR_ADDR, IIC_M_WR, 1, &addr },
+ { XLR_TEMPSENSOR_ADDR, IIC_M_RD, 1, data },
+ };
+
+ if(xlr_boot1_info.board_major_version == RMI_XLR_BOARD_ARIZONA_VIII)
+ {
+ msgs[0].slave = XLR_ATX8_TEMPSENSOR_ADDR ;
+ msgs[1].slave = XLR_ATX8_TEMPSENSOR_ADDR ;
+ }
+
+ return iicbus_transfer(dev, msgs, 2) != 0 ? -1 : data[0];
+}
+
+
+static void
+xlr_temperature_update(struct xlr_temperature_softc *sc)
+{
+ int v;
+
+ mtx_lock(&sc->sc_mtx);
+ /* NB: no point in updating any faster than the chip */
+ if (ticks - sc->sc_lastupdate > hz) {
+ v = xlr_temperature_read(sc->sc_dev, XLR_TEMPSENSOR_EXT_TEMP);
+ if (v >= 0)
+ sc->sc_curtemp = v;
+ sc->sc_lastupdate = ticks;
+ }
+ mtx_unlock(&sc->sc_mtx);
+}
+
+static device_method_t xlr_temperature_methods[] = {
+ DEVMETHOD(device_probe, xlr_temperature_probe),
+ DEVMETHOD(device_attach, xlr_temperature_attach),
+
+ {0, 0},
+};
+
+static driver_t xlr_temperature_driver = {
+ "xlr_temperature",
+ xlr_temperature_methods,
+ sizeof(struct xlr_temperature_softc),
+};
+static devclass_t xlr_temperature_devclass;
+
+DRIVER_MODULE(xlr_temperature, iicbus, xlr_temperature_driver, xlr_temperature_devclass, 0, 0);
+MODULE_VERSION(xlr_temperature, 1);
+MODULE_DEPEND(xlr_temperature, iicbus, 1, 1, 1);
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