141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/* $NetBSD: ohci_s3c24x0.c,v 1.6 2008/04/28 20:23:14 martin Exp $ */
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/* derived from ohci_pci.c */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ohci_s3c24x0.c,v 1.6 2008/04/28 20:23:14 martin Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/queue.h>
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#include <machine/bus.h>
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#include <arm/s3c2xx0/s3c24x0var.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/usb/ohcireg.h>
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#include <dev/usb/ohcivar.h>
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int ohci_ssio_match(struct device *, struct cfdata *, void *);
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void ohci_ssio_attach(struct device *, struct device *, void *);
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int ohci_ssio_detach(device_ptr_t, int);
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extern int ohcidebug;
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struct ohci_ssio_softc {
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ohci_softc_t sc;
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void *sc_ih; /* interrupt vectoring */
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};
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CFATTACH_DECL_NEW(ohci_ssio, sizeof(struct ohci_ssio_softc),
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ohci_ssio_match, ohci_ssio_attach, ohci_ssio_detach, ohci_activate);
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int
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ohci_ssio_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
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/* XXX: check some registers */
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if (sa->sa_dmat == NULL) {
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/* busdma tag is not initialized. */
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return 0;
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}
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return 1;
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}
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void
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ohci_ssio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct ohci_ssio_softc *sc = device_private(self);
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struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
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usbd_status r;
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aprint_normal("\n");
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sc->sc.sc_dev = self;
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sc->sc.sc_bus.hci_private = sc;
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sc->sc.iot = sa->sa_iot;
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/*ohcidebug=15;*/
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/* Map I/O registers */
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if (bus_space_map(sc->sc.iot, sa->sa_addr, 0x5c, 0, &sc->sc.ioh)) {
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aprint_error_dev(self, "can't map mem space\n");
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return;
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}
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/* Disable interrupts, so we don't get any spurious ones. */
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bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
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OHCI_ALL_INTRS);
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sc->sc.sc_bus.dmatag = sa->sa_dmat;
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/* Enable the device. */
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/* XXX: provide clock to USB block */
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/* establish the interrupt. */
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sc->sc_ih = s3c24x0_intr_establish(sa->sa_intr, IPL_USB, IST_NONE, ohci_intr, sc);
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if (sc->sc_ih == NULL) {
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aprint_error_dev(self, "couldn't establish interrupt\n");
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return;
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}
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strlcpy(sc->sc.sc_vendor, "Samsung", sizeof sc->sc.sc_vendor);
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r = ohci_init(&sc->sc);
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if (r != USBD_NORMAL_COMPLETION) {
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aprint_error_dev(self, "init failed, error=%d\n", r);
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return;
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}
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/* Attach usb device. */
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sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
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}
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int
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ohci_ssio_detach(device_ptr_t self, int flags)
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{
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return (0);
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}
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