/* $OpenBSD: hidwusb.c,v 1.1 2018/08/27 13:56:11 kettenis Exp $ */ /* * Copyright (c) 2017, 2018 Mark kettenis * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include /* * This driver is based on preliminary device tree bindings and will * almost certainly need changes once the official bindings land in * mainline Linux. Support for these preliminary bindings will be * dropped as soon as official bindings are available. */ struct hidwusb_softc { struct simplebus_softc sc_sbus; }; int hidwusb_match(struct device *, void *, void *); void hidwusb_attach(struct device *, struct device *, void *); struct cfattach hidwusb_ca = { sizeof(struct hidwusb_softc), hidwusb_match, hidwusb_attach }; struct cfdriver hidwusb_cd = { NULL, "hidwusb", DV_DULL }; int hidwusb_match(struct device *parent, void *match, void *aux) { struct fdt_attach_args *faa = aux; return OF_is_compatible(faa->fa_node, "hisilicon,kirin970-dwc3"); } void hidwusb_attach(struct device *parent, struct device *self, void *aux) { struct hidwusb_softc *sc = (struct hidwusb_softc *)self; struct fdt_attach_args *faa = aux; uint32_t gpio[3]; int node; /* * The HiKey970 has a switch to select between the Type-C and * a hub with Type-A connectors. Switch to the USB Type-C * connector as we can't power up the hub yet. */ node = OF_finddevice("/soc/hikey_usbhub"); if (node) { if (OF_getpropintarray(node, "typc_vbus_int_gpio,typec-gpios", gpio, sizeof(gpio)) == sizeof(gpio)) { gpio_controller_config_pin(gpio, GPIO_CONFIG_OUTPUT); gpio_controller_set_pin(gpio, 1); } } clock_enable_all(faa->fa_node); reset_deassert_all(faa->fa_node); simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa); }