diff options
Diffstat (limited to 'sys/powerpc/powermac')
| -rw-r--r-- | sys/powerpc/powermac/windtunnel.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/sys/powerpc/powermac/windtunnel.c b/sys/powerpc/powermac/windtunnel.c deleted file mode 100644 index 6a28a73b6d9c..000000000000 --- a/sys/powerpc/powermac/windtunnel.c +++ /dev/null @@ -1,240 +0,0 @@ -/*- - * 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)); -} |