/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2018 Ruslan Bukin * All rights reserved. * * This software was developed by BAE Systems, the University of Cambridge * Computer Laboratory, and Memorial University under DARPA/AFRL contract * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing * (TC) research program. * * 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 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. */ #include __FBSDID("$FreeBSD$"); #include "opt_bus.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct ehci_msm_softc { ehci_softc_t base; struct resource *res[3]; }; static struct resource_spec ehci_msm_spec[] = { { SYS_RES_MEMORY, 0, RF_ACTIVE }, { SYS_RES_MEMORY, 1, RF_ACTIVE }, { SYS_RES_IRQ, 0, RF_ACTIVE }, { -1, 0 } }; #define EHCI_HC_DEVSTR "Qualcomm USB 2.0 controller" static device_attach_t ehci_msm_attach; static device_detach_t ehci_msm_detach; static int ehci_msm_probe(device_t dev) { if (!ofw_bus_is_compatible(dev, "qcom,ci-hdrc")) return (ENXIO); device_set_desc(dev, EHCI_HC_DEVSTR); return (BUS_PROBE_DEFAULT); } static int ehci_msm_attach(device_t dev) { struct ehci_msm_softc *esc; bus_space_handle_t bsh; ehci_softc_t *sc; int err; esc = device_get_softc(dev); sc = &esc->base; sc->sc_bus.parent = dev; sc->sc_bus.devices = sc->sc_devices; sc->sc_bus.devices_max = EHCI_MAX_DEVICES; sc->sc_bus.dma_bits = 32; if (bus_alloc_resources(dev, ehci_msm_spec, esc->res)) { device_printf(dev, "could not allocate resources\n"); return (ENXIO); } sc->sc_io_tag = rman_get_bustag(esc->res[0]); /* Get all DMA memory */ if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(dev), &ehci_iterate_hw_softc)) { return (ENOMEM); } /* EHCI registers */ sc->sc_io_tag = rman_get_bustag(esc->res[0]); bsh = rman_get_bushandle(esc->res[0]); sc->sc_io_size = rman_get_size(esc->res[0]); if (bus_space_subregion(sc->sc_io_tag, bsh, 0x100, sc->sc_io_size, &sc->sc_io_hdl) != 0) panic("%s: unable to subregion USB host registers", device_get_name(dev)); sc->sc_bus.bdev = device_add_child(dev, "usbus", -1); if (!sc->sc_bus.bdev) { device_printf(dev, "Could not add USB device\n"); goto error; } device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); device_set_desc(sc->sc_bus.bdev, EHCI_HC_DEVSTR); sprintf(sc->sc_vendor, "Qualcomm"); err = bus_setup_intr(dev, esc->res[2], INTR_TYPE_BIO | INTR_MPSAFE, NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); if (err) { device_printf(dev, "Could not setup irq, %d\n", err); sc->sc_intr_hdl = NULL; goto error; } sc->sc_flags |= EHCI_SCFLG_DONTRESET | EHCI_SCFLG_NORESTERM; err = ehci_init(sc); if (!err) { sc->sc_flags |= EHCI_SCFLG_DONEINIT; err = device_probe_and_attach(sc->sc_bus.bdev); } if (err) { device_printf(dev, "USB init failed err=%d\n", err); goto error; } return (0); error: ehci_msm_detach(dev); return (ENXIO); } static int ehci_msm_detach(device_t dev) { ehci_softc_t *sc; device_t bdev; int err; sc = device_get_softc(dev); if (sc->sc_bus.bdev) { bdev = sc->sc_bus.bdev; device_detach(bdev); device_delete_child(dev, bdev); } device_delete_children(dev); if (sc->sc_irq_res && sc->sc_intr_hdl) { /* only call ehci_detach() after ehci_init() */ ehci_detach(sc); err = bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr_hdl); if (err) device_printf(dev, "Could not tear down irq, %d\n", err); sc->sc_intr_hdl = NULL; } if (sc->sc_irq_res) { bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res); sc->sc_irq_res = NULL; } if (sc->sc_io_res) { bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_io_res); sc->sc_io_res = NULL; } usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); return (0); } static device_method_t ehci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, ehci_msm_probe), DEVMETHOD(device_attach, ehci_msm_attach), DEVMETHOD(device_detach, ehci_msm_detach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static driver_t ehci_driver = { .name = "ehci", .methods = ehci_methods, .size = sizeof(ehci_softc_t), }; static devclass_t ehci_devclass; DRIVER_MODULE(ehci_msm, simplebus, ehci_driver, ehci_devclass, 0, 0); MODULE_DEPEND(ehci_msm, usb, 1, 1, 1);