Author: jhibbits
Date: Thu Oct 16 01:32:22 2014
New Revision: 273156
URL: https://svnweb.freebsd.org/changeset/base/273156
Log:
Move the adm1030 driver to the proper location, and rename it.
For compatibility, 'device windtunnel' is still supported, but one should use
'device adm1030' instead, and this has been updated in GENERIC and NOTES.
Added:
head/sys/dev/iicbus/adm1030.c
- copied unchanged from r273153, head/sys/powerpc/powermac/windtunnel.c
Deleted:
head/sys/powerpc/powermac/windtunnel.c
Modified:
head/sys/conf/files.powerpc
head/sys/powerpc/conf/GENERIC
head/sys/powerpc/conf/NOTES
Modified: head/sys/conf/files.powerpc
==============================================================================
--- head/sys/conf/files.powerpc Thu Oct 16 00:33:06 2014 (r273155)
+++ head/sys/conf/files.powerpc Thu Oct 16 01:32:22 2014 (r273156)
@@ -33,6 +33,7 @@ dev/hwpmc/hwpmc_powerpc.c optional hwpmc
dev/hwpmc/hwpmc_mpc7xxx.c optional hwpmc
dev/hwpmc/hwpmc_ppc970.c optional hwpmc
dev/iicbus/ad7417.c optional ad7417 powermac
+dev/iicbus/adm1030.c optional powermac windtunnel | adm1030 powermac
dev/iicbus/adt746x.c optional adt746x powermac
dev/iicbus/ds1631.c optional ds1631 powermac
dev/iicbus/ds1775.c optional ds1775 powermac
@@ -169,7 +170,6 @@ powerpc/powermac/smusat.c optional power
powerpc/powermac/uninorth.c optional powermac
powerpc/powermac/uninorthpci.c optional powermac pci
powerpc/powermac/vcoregpio.c optional powermac
-powerpc/powermac/windtunnel.c optional powermac windtunnel
powerpc/powerpc/altivec.c standard
powerpc/powerpc/autoconf.c standard
powerpc/powerpc/bcopy.c standard
Copied: head/sys/dev/iicbus/adm1030.c (from r273153,
head/sys/powerpc/powermac/windtunnel.c)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/iicbus/adm1030.c Thu Oct 16 01:32:22 2014
(r273156, copy of r273153, head/sys/powerpc/powermac/windtunnel.c)
@@ -0,0 +1,240 @@
+/*-
+ * Copyright (c) 2011 Justin Hibbits
+ * Copyright (c) 2010 Andreas Tobler
+ * 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 ``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 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/bus.h>
+#include <sys/systm.h>
+#include <sys/module.h>
+#include <sys/callout.h>
+#include <sys/conf.h>
+#include <sys/cpu.h>
+#include <sys/ctype.h>
+#include <sys/kernel.h>
+#include <sys/kthread.h>
+#include <sys/limits.h>
+#include <sys/reboot.h>
+#include <sys/rman.h>
+#include <sys/sysctl.h>
+#include <sys/unistd.h>
+
+#include <machine/bus.h>
+#include <machine/md_var.h>
+
+#include <dev/iicbus/iicbus.h>
+#include <dev/iicbus/iiconf.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <powerpc/powermac/powermac_thermal.h>
+
+struct adm1030_softc {
+ struct pmac_fan fan;
+ device_t sc_dev;
+ struct intr_config_hook enum_hook;
+ uint32_t sc_addr;
+ int sc_pwm;
+};
+
+/* Regular bus attachment functions */
+static int adm1030_probe(device_t);
+static int adm1030_attach(device_t);
+
+/* Utility functions */
+static void adm1030_start(void *xdev);
+static int adm1030_write_byte(device_t dev, uint32_t addr, uint8_t reg,
uint8_t buf);
+static int adm1030_set(struct adm1030_softc *fan, int pwm);
+static int adm1030_sysctl(SYSCTL_HANDLER_ARGS);
+
+static device_method_t adm1030_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, adm1030_probe),
+ DEVMETHOD(device_attach, adm1030_attach),
+ {0, 0},
+};
+
+static driver_t adm1030_driver = {
+ "adm1030",
+ adm1030_methods,
+ sizeof(struct adm1030_softc)
+};
+
+static devclass_t adm1030_devclass;
+
+DRIVER_MODULE(adm1030, iicbus, adm1030_driver, adm1030_devclass, 0, 0);
+
+static int
+adm1030_write_byte(device_t dev, uint32_t addr, uint8_t reg, uint8_t byte)
+{
+ unsigned char buf[4];
+ int try = 0;
+
+ struct iic_msg msg[] = {
+ {addr, IIC_M_WR, 0, buf}
+ };
+
+ msg[0].len = 2;
+ buf[0] = reg;
+ buf[1] = byte;
+
+ for (;;)
+ {
+ if (iicbus_transfer(dev, msg, 1) == 0)
+ return (0);
+
+ if (++try > 5) {
+ device_printf(dev, "iicbus write failed\n");
+ return (-1);
+ }
+ pause("adm1030_write_byte", hz);
+ }
+}
+
+static int
+adm1030_probe(device_t dev)
+{
+ const char *name, *compatible;
+ struct adm1030_softc *sc;
+ phandle_t handle;
+ phandle_t thermostat;
+
+ name = ofw_bus_get_name(dev);
+ compatible = ofw_bus_get_compat(dev);
+ handle = ofw_bus_get_node(dev);
+
+ if (!name)
+ return (ENXIO);
+
+ if (strcmp(name, "fan") != 0 || strcmp(compatible, "adm1030") != 0)
+ return (ENXIO);
+
+ /* This driver can only be used if there's an associated temp sensor. */
+ if (OF_getprop(handle, "platform-getTemp", &thermostat,
sizeof(thermostat)) < 0)
+ return (ENXIO);
+
+ sc = device_get_softc(dev);
+ sc->sc_dev = dev;
+ sc->sc_addr = iicbus_get_addr(dev);
+
+ device_set_desc(dev, "G4 MDD Fan driver");
+
+ return (0);
+}
+
+static int
+adm1030_attach(device_t dev)
+{
+ struct adm1030_softc *sc;
+ struct sysctl_ctx_list *ctx;
+ struct sysctl_oid *tree;
+
+ sc = device_get_softc(dev);
+
+ sc->enum_hook.ich_func = adm1030_start;
+ sc->enum_hook.ich_arg = dev;
+
+ /*
+ * Wait until interrupts are available, which won't be until the
openpic is
+ * intialized.
+ */
+
+ if (config_intrhook_establish(&sc->enum_hook) != 0)
+ return (ENOMEM);
+
+ ctx = device_get_sysctl_ctx(dev);
+ tree = device_get_sysctl_tree(dev);
+ SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "pwm",
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev,
+ 0, adm1030_sysctl, "I", "Fan PWM Rate");
+
+ return (0);
+}
+
+static void
+adm1030_start(void *xdev)
+{
+ struct adm1030_softc *sc;
+
+ device_t dev = (device_t) xdev;
+
+ sc = device_get_softc(dev);
+
+ /* Start the adm1030 device. */
+ adm1030_write_byte(sc->sc_dev, sc->sc_addr, 0x1, 0x1);
+ adm1030_write_byte(sc->sc_dev, sc->sc_addr, 0x0, 0x95);
+ adm1030_write_byte(sc->sc_dev, sc->sc_addr, 0x23, 0x91);
+
+ /* Use the RPM fields as PWM duty cycles. */
+ sc->fan.min_rpm = 0;
+ sc->fan.max_rpm = 0x0F;
+ sc->fan.default_rpm = 2;
+
+ strcpy(sc->fan.name, "MDD Case fan");
+ sc->fan.zone = 0;
+ sc->fan.read = NULL;
+ sc->fan.set = (int (*)(struct pmac_fan *, int))adm1030_set;
+ config_intrhook_disestablish(&sc->enum_hook);
+
+ pmac_thermal_fan_register(&sc->fan);
+}
+
+static int adm1030_set(struct adm1030_softc *fan, int pwm)
+{
+ /* Clamp the PWM to 0-0xF, one nibble. */
+ if (pwm > 0xF)
+ pwm = 0xF;
+ if (pwm < 0)
+ pwm = 0;
+
+ if (adm1030_write_byte(fan->sc_dev, fan->sc_addr, 0x22, pwm) < 0)
+ return (-1);
+
+ fan->sc_pwm = pwm;
+ return (0);
+}
+
+static int
+adm1030_sysctl(SYSCTL_HANDLER_ARGS)
+{
+ device_t adm1030;
+ struct adm1030_softc *sc;
+ int pwm, error;
+
+ adm1030 = arg1;
+ sc = device_get_softc(adm1030);
+
+ pwm = sc->sc_pwm;
+
+ error = sysctl_handle_int(oidp, &pwm, 0, req);
+
+ if (error || !req->newptr)
+ return (error);
+
+ return (adm1030_set(sc, pwm));
+}
Modified: head/sys/powerpc/conf/GENERIC
==============================================================================
--- head/sys/powerpc/conf/GENERIC Thu Oct 16 00:33:06 2014
(r273155)
+++ head/sys/powerpc/conf/GENERIC Thu Oct 16 01:32:22 2014
(r273156)
@@ -196,7 +196,7 @@ device fcu # Apple Fan Control Unit
device max6690 # PowerMac7,2 temperature sensor
device powermac_nvram # Open Firmware configuration NVRAM
device smu # Apple System Management Unit
-device windtunnel # Apple G4 MDD fan controller
+device adm1030 # Apple G4 MDD fan controller
device atibl # ATI-based backlight driver for
PowerBooks/iBooks
device nvbl # nVidia-based backlight driver for
PowerBooks/iBooks
Modified: head/sys/powerpc/conf/NOTES
==============================================================================
--- head/sys/powerpc/conf/NOTES Thu Oct 16 00:33:06 2014 (r273155)
+++ head/sys/powerpc/conf/NOTES Thu Oct 16 01:32:22 2014 (r273156)
@@ -50,7 +50,7 @@ device pmu # Apple Power
Management Un
device smu # Apple System Management Unit
device snd_ai2s # Apple I2S Audio
device snd_davbus # Apple Davbus Audio
-device windtunnel # Apple G4 MDD fan controller
+device adm1030 # Apple G4 MDD fan controller
#####################################################################
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