/* $NetBSD: ralink_ehci.c,v 1.9 2021/08/07 16:18:59 thorpej Exp $ */ /*- * Copyright (c) 2011 CradlePoint Technology, Inc. * 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 CRADLEPOINT TECHNOLOGY, INC. 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. */ /* ralink_ehci.c -- Ralink EHCI USB Driver */ #include __KERNEL_RCSID(0, "$NetBSD: ralink_ehci.c,v 1.9 2021/08/07 16:18:59 thorpej Exp $"); #include #include #include #include #include #include #include #include #include #include #include struct ralink_ehci_softc { struct ehci_softc sc_ehci; void *sc_ih; }; static int ralink_ehci_match(device_t, cfdata_t, void *); static void ralink_ehci_attach(device_t, device_t, void *); static int ralink_ehci_detach(device_t, int); CFATTACH_DECL2_NEW(ralink_ehci, sizeof(struct ralink_ehci_softc), ralink_ehci_match, ralink_ehci_attach, ralink_ehci_detach, ehci_activate, NULL, ehci_childdet); static TAILQ_HEAD(, ralink_usb_hc) ralink_usb_alldevs = TAILQ_HEAD_INITIALIZER(ralink_usb_alldevs); #if 0 struct usb_hc_alldevs ralink_usb_alldevs = TAILQ_HEAD_INITIALIZER(ralink_usb_alldevs); #endif /* * ralink_ehci_match */ static int ralink_ehci_match(device_t parent, cfdata_t cf, void *aux) { return 1; } /* * ralink_ehci_attach */ static void ralink_ehci_attach(device_t parent, device_t self, void *aux) { struct ralink_ehci_softc * const sc = device_private(self); const struct mainbus_attach_args *ma = aux; struct ralink_usb_hc *ruh; int error; aprint_naive(": EHCI USB controller\n"); aprint_normal(": EHCI USB controller\n"); sc->sc_ehci.sc_dev = self; sc->sc_ehci.sc_bus.ub_hcpriv = sc; sc->sc_ehci.iot = ma->ma_memt; sc->sc_ehci.sc_bus.ub_dmatag = ma->ma_dmat; /* Map EHCI registers */ if ((error = bus_space_map(sc->sc_ehci.iot, RA_USB_EHCI_BASE, RA_USB_BLOCK_SIZE, 0, &sc->sc_ehci.ioh)) != 0) { aprint_error_dev(self, "can't map EHCI registers, " "error=%d\n", error); return; } sc->sc_ehci.sc_size = RA_USB_BLOCK_SIZE; sc->sc_ehci.sc_bus.ub_revision = USBREV_2_0; #if defined(RALINK_EHCI_DEBUG) aprint_normal_dev(self, "sc %p ma %p\n", sc, ma); aprint_normal_dev(self, "memt %p dmat %p\n", ma->ma_memt, ma->ma_dmat); aprint_normal_dev(self, "EHCI HCCAPBASE=%#x\n", EREAD4(&sc->sc_ehci, EHCI_CAPLENGTH)); aprint_normal_dev(self, "EHCI HCSPARAMS=%#x\n", EREAD4(&sc->sc_ehci, EHCI_HCSPARAMS)); aprint_normal_dev(self, "EHCI HCCPARAMS=%#x\n", EREAD4(&sc->sc_ehci, EHCI_HCCPARAMS)); aprint_normal_dev(self, "EHCI HCSP_PORTROUTE=%#x\n", EREAD4(&sc->sc_ehci, EHCI_HCSP_PORTROUTE)); #endif /* Disable EHCI interrupts. */ sc->sc_ehci.sc_offs = EREAD1(&sc->sc_ehci, EHCI_CAPLENGTH); EOWRITE4(&sc->sc_ehci, EHCI_USBINTR, 0); #if defined(RALINK_EHCI_DEBUG) aprint_normal_dev(self, "EHCI USBCMD=%#x USBSTS=%#x USBINTR=%#x\n", EOREAD4(&sc->sc_ehci, EHCI_USBCMD), EOREAD4(&sc->sc_ehci, EHCI_USBSTS), EOREAD4(&sc->sc_ehci, EHCI_USBINTR)); #endif /* Establish the MIPS level interrupt */ sc->sc_ih = ra_intr_establish(RA_IRQ_USB, ehci_intr, sc, 1); if (sc->sc_ih == NULL) { aprint_error_dev(self, "unable to establish irq %d\n", RA_IRQ_USB); goto fail_0; } /* * Find companion controllers. According to the spec they always * have lower function numbers so they should be enumerated already. */ int ncomp = 0; TAILQ_FOREACH(ruh, &ralink_usb_alldevs, next) { aprint_normal_dev(self, "companion %s\n", device_xname(ruh->usb)); sc->sc_ehci.sc_comps[ncomp++] = ruh->usb; if (ncomp >= EHCI_COMPANION_MAX) break; } sc->sc_ehci.sc_ncomp = ncomp; /* Initialize EHCI */ int err = ehci_init(&sc->sc_ehci); if (err) { aprint_error_dev(self, "init failed, error=%d\n", err); goto fail_1; } if (!pmf_device_register1(self, ehci_suspend, ehci_resume, ehci_shutdown)) aprint_error_dev(self, "couldn't establish power handler\n"); /* Attach usb device. */ sc->sc_ehci.sc_child = config_found(self, &sc->sc_ehci.sc_bus, usbctlprint, CFARGS_NONE); return; fail_1: ra_intr_disestablish(sc->sc_ih); sc->sc_ih = NULL; fail_0: bus_space_unmap(sc->sc_ehci.iot, sc->sc_ehci.ioh, sc->sc_ehci.sc_size); sc->sc_ehci.sc_size = 0; } static int ralink_ehci_detach(device_t self, int flags) { struct ralink_ehci_softc * const sc = device_private(self); int rv; pmf_device_deregister(self); rv = ehci_detach(&sc->sc_ehci, flags); if (rv) return rv; if (sc->sc_ih != NULL) { ra_intr_disestablish(sc->sc_ih); sc->sc_ih = NULL; } if (sc->sc_ehci.sc_size != 0) { bus_space_unmap(sc->sc_ehci.iot, sc->sc_ehci.ioh, sc->sc_ehci.sc_size); sc->sc_ehci.sc_size = 0; } return 0; } void ralink_usb_hc_add(struct ralink_usb_hc *ruh, device_t usbp) { TAILQ_INSERT_TAIL(&ralink_usb_alldevs, ruh, next); ruh->usb = usbp; } void ralink_usb_hc_rem(struct ralink_usb_hc *ruh) { TAILQ_REMOVE(&ralink_usb_alldevs, ruh, next); }