003 File Manager
Current Path:
/usr/src/sys/dev/gpio
usr
/
src
/
sys
/
dev
/
gpio
/
📁
..
📄
bytgpio.c
(15.95 KB)
📄
chvgpio.c
(12.67 KB)
📄
chvgpio_reg.h
(7.68 KB)
📁
dwgpio
📄
gpio_if.m
(4.13 KB)
📄
gpiobacklight.c
(4.42 KB)
📄
gpiobus.c
(27.08 KB)
📄
gpiobus_if.m
(2.58 KB)
📄
gpiobusvar.h
(6.03 KB)
📄
gpioc.c
(26.91 KB)
📄
gpioiic.c
(9.97 KB)
📄
gpiokeys.c
(23.94 KB)
📄
gpiokeys.h
(1.67 KB)
📄
gpiokeys_codes.c
(3.55 KB)
📄
gpioled.c
(4.2 KB)
📄
gpioled_fdt.c
(5.44 KB)
📄
gpiomdio.c
(6.57 KB)
📄
gpiopower.c
(3.54 KB)
📄
gpiopps.c
(7.97 KB)
📄
gpioregulator.c
(8.51 KB)
📄
gpiospi.c
(9.93 KB)
📄
gpioths.c
(11.83 KB)
📄
ofw_gpiobus.c
(13.45 KB)
📄
pl061.c
(14.16 KB)
📄
pl061.h
(1.94 KB)
📄
pl061_acpi.c
(2.91 KB)
📄
pl061_fdt.c
(2.83 KB)
Editing: gpiopower.c
/*- * Copyright (c) 2016 Justin Hibbits * 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/systm.h> #include <sys/bus.h> #include <sys/eventhandler.h> #include <sys/gpio.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/reboot.h> #include <dev/ofw/ofw_bus.h> #include <dev/gpio/gpiobusvar.h> struct gpiopower_softc { gpio_pin_t sc_pin; int sc_rbmask; }; static void gpiopower_assert(device_t dev, int howto); static int gpiopower_probe(device_t dev) { if (ofw_bus_is_compatible(dev, "gpio-poweroff")) { device_set_desc(dev, "GPIO poweroff control"); return (0); } else if (ofw_bus_is_compatible(dev, "gpio-restart")) { device_set_desc(dev, "GPIO restart control"); return (0); } return (ENXIO); } static int gpiopower_attach(device_t dev) { struct gpiopower_softc *sc; phandle_t node; sc = device_get_softc(dev); if ((node = ofw_bus_get_node(dev)) == -1) return (ENXIO); ofw_gpiobus_parse_gpios(dev, "gpios", &sc->sc_pin); if (sc->sc_pin == NULL) { device_printf(dev, "failed to map GPIO pin\n"); return (ENXIO); } if (ofw_bus_is_compatible(dev, "gpio-poweroff")) sc->sc_rbmask = RB_HALT | RB_POWEROFF; else sc->sc_rbmask = 0; EVENTHANDLER_REGISTER(shutdown_final, gpiopower_assert, dev, SHUTDOWN_PRI_LAST); gpio_pin_setflags(sc->sc_pin, GPIO_PIN_OUTPUT); return (0); } static void gpiopower_assert(device_t dev, int howto) { struct gpiopower_softc *sc; int do_assert; sc = device_get_softc(dev); do_assert = sc->sc_rbmask ? (sc->sc_rbmask & howto) : ((howto & RB_HALT) == 0); if (!do_assert) return; if (howto & RB_POWEROFF) device_printf(dev, "powering system off\n"); else if ((howto & RB_HALT) == 0) device_printf(dev, "resetting system\n"); else return; gpio_pin_set_active(sc->sc_pin, true); /* Wait a second for it to trip */ DELAY(10000000); } static devclass_t gpiopower_devclass; static device_method_t gpiopower_methods[] = { /* Device interface */ DEVMETHOD(device_probe, gpiopower_probe), DEVMETHOD(device_attach, gpiopower_attach), DEVMETHOD_END }; static driver_t gpiopower_driver = { "gpiopower", gpiopower_methods, sizeof(struct gpiopower_softc) }; DRIVER_MODULE(gpiopower, simplebus, gpiopower_driver, gpiopower_devclass, 0, 0); MODULE_DEPEND(gpiopower, gpiobus, 1, 1, 1);
Upload File
Create Folder