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296 lines
8.8 KiB
C
296 lines
8.8 KiB
C
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/* $NetBSD: ohci_pci.c,v 1.5 1998/11/25 22:32:04 augustss Exp $ */
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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 (augustss@carlstedt.se) 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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/*
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* USB Open Host Controller driver.
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*
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* OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
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* USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
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*/
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#include <dev/usb/usb_port.h>
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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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#if defined(__FreeBSD__)
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#include <sys/module.h>
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#include <sys/bus.h>
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#endif
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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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#if defined(__NetBSD__)
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#include <machine/bus.h>
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#include <dev/pci/pcivar.h>
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#elif defined(__FreeBSD__)
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#define PCI_CLASS_SERIALBUS 0x0c000000
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#define PCI_SUBCLASS_COMMUNICATIONS_SERIAL 0x00000000
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#define PCI_SUBCLASS_SERIALBUS_FIREWIRE 0x00000000
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#define PCI_SUBCLASS_SERIALBUS_ACCESS 0x00010000
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#define PCI_SUBCLASS_SERIALBUS_SSA 0x00020000
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#define PCI_SUBCLASS_SERIALBUS_USB 0x00030000
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#define PCI_SUBCLASS_SERIALBUS_FIBER 0x00040000
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#endif
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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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#if defined(__NetBSD__)
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int ohci_pci_match __P((struct device *, struct cfdata *, void *));
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void ohci_pci_attach __P((struct device *, struct device *, void *));
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struct cfattach ohci_pci_ca = {
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sizeof(struct ohci_softc), ohci_pci_match, ohci_pci_attach
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};
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#elif defined(__FreeBSD__)
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#define PCI_INTERFACE_MASK 0x0000ff00
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#define PCI_INTERFACE_SHIFT 8
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#define PCI_INTERFACE(d) (((d)>>8)&PCI_INTERFACE_MASK)
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#define PCI_SUBCLASS(d) ((d)&PCI_SUBCLASS_MASK)
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#define PCI_CLASS(d) ((d)&PCI_CLASS_MASK)
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#define PCI_VENDOR(d) ((d)&0xffff)
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#define PCI_DEVICE(d) (((d)>>8)&0xffff)
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#define PCI_OHCI_BASE_REG 0x10
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static char *ohci_pci_probe __P((pcici_t, pcidi_t));
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static void ohci_pci_attach __P((pcici_t, int));
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u_long ohci_count = 0; /* global counter for nr. of devices found */
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static struct pci_device ohci_pci_device = {
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"ohci",
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ohci_pci_probe,
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ohci_pci_attach,
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&ohci_count,
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NULL
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};
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DATA_SET(pcidevice_set, ohci_pci_device);
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#endif
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#if defined(__NetBSD__)
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int
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ohci_pci_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pci_attach_args *pa = (struct pci_attach_args *) aux;
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if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS &&
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PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB &&
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PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI)
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return 1;
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return 0;
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}
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#elif defined(__FreeBSD__)
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static char *
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ohci_pci_probe(pcici_t config_id, pcidi_t device_id)
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{
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u_int32_t class;
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class = pci_conf_read(config_id, PCI_CLASS_REG);
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if ( PCI_CLASS(class) == PCI_CLASS_SERIALBUS
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&& PCI_SUBCLASS(class) == PCI_SUBCLASS_SERIALBUS_USB
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&& PCI_INTERFACE(class) == PCI_INTERFACE_OHCI)
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return("OHCI Host Controller");
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return NULL; /* dunno */
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}
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#endif
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#if defined(__NetBSD__)
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void
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ohci_pci_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct ohci_softc *sc = (struct ohci_softc *)self;
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struct pci_attach_args *pa = (struct pci_attach_args *)aux;
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pci_chipset_tag_t pc = pa->pa_pc;
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char const *intrstr;
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pci_intr_handle_t ih;
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pcireg_t csr;
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char devinfo[256];
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usbd_status r;
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char *vendor;
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
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printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
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/* Map I/O registers */
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if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
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&sc->iot, &sc->ioh, NULL, NULL)) {
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printf("%s: can't map mem space\n", sc->sc_bus.bdev.dv_xname);
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return;
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}
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sc->sc_dmatag = pa->pa_dmat;
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/* Enable the device. */
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csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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csr | PCI_COMMAND_MASTER_ENABLE);
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/* Map and establish the interrupt. */
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if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
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pa->pa_intrline, &ih)) {
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printf("%s: couldn't map interrupt\n", sc->sc_bus.bdev.dv_xname);
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt",
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sc->sc_bus.bdev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr);
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/* Figure out vendor for root hub descriptor. */
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vendor = pci_findvendor(pa->pa_id);
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if (vendor)
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strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor));
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else
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sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id));
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r = ohci_init(sc);
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if (r != USBD_NORMAL_COMPLETION) {
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printf("%s: init failed, error=%d\n", sc->sc_bus.bdev.dv_xname,
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r);
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return;
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}
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/* Attach usb device. */
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config_found((void *)sc, &sc->sc_bus, usbctlprint);
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}
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#elif defined(__FreeBSD__)
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static void
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ohci_pci_attach(pcici_t config_id, int unit)
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{
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int id;
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usbd_status r;
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ohci_softc_t *sc = NULL;
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int rev;
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sc = malloc(sizeof(ohci_softc_t), M_DEVBUF, M_NOWAIT);
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/* Do not free it below, intr might use the sc */
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if ( sc == NULL ) {
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printf("usb%d: could not allocate memory", unit);
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return;
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}
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memset(sc, 0, sizeof(ohci_softc_t));
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sc->sc_iobase = pci_conf_read(config_id,PCI_OHCI_BASE_REG) & 0xfffff000;
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sc->unit = unit;
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if ( !pci_map_int(config_id, (pci_inthand_t *)ohci_intr,
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(void *) sc, &bio_imask)) {
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printf("usb%d: Unable to map irq\n", unit);
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return;
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}
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#ifndef USBVERBOSE
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if (bootverbose)
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#endif
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{
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printf("usb%d: OHCI version %d%d, interrupting at %d\n", unit,
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/* XXX is this correct? Does the correct version show up? */
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(rev&0xf0)>>8, rev&0x0f,
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(int)pci_conf_read(config_id,PCI_INTERRUPT_REG) & 0xff);
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}
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/* Figure out vendor for root hub descriptor. */
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id = pci_conf_read(config_id, PCI_ID_REG);
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if (PCI_VENDOR(id) == 0x8086)
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sprintf(sc->sc_vendor, "Intel");
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else
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sprintf(sc->sc_vendor, "Vendor 0x%04x", PCI_VENDOR(id));
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/* We add a child to the root bus. After PCI configuration
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* has completed the root bus will start to probe and
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* attach all the devices attached to it, including our new
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* kid.
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*
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* FIXME Sometime in the future the UHCI controller itself will
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* become a kid of PCI device and this device add will no longer
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* be necessary.
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*
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* See README for an elaborate description of the bus
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* structure in spe.
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*/
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sc->sc_bus.bdev = device_add_child(root_bus, "usb", unit, sc);
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if (!sc->sc_bus.bdev) {
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DEVICE_ERROR(sc->sc_bus.bdev,
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("unable to add USB device to root bus\n"));
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return;
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}
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r = ohci_init(sc);
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if (r != USBD_NORMAL_COMPLETION) {
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printf("usb%d: init failed, error=%d\n", unit, r);
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device_delete_child(root_bus, sc->sc_bus.bdev);
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return;
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}
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device_set_desc(sc->sc_bus.bdev, "OHCI Host Controller");
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return;
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}
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#endif
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