/* FreeBSD $Id: uhci_pci.c,v 1.6 1999/04/16 21:22:53 peter Exp $ */ /* * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (augustss@carlstedt.se) at * Carlstedt Research & Technology. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, 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 FOUNDATION 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. */ /* Universal Host Controller Interface * * UHCI spec: http://www.intel.com/ */ /* The low level controller code for UHCI has been split into * PCI probes and UHCI specific code. This was done to facilitate the * sharing of code between *BSD's */ #include "opt_bus.h" #include #include #include #include #include #include #include #include #if defined(__FreeBSD__) #include #endif #include #include #include #include #include #include #include #include #include #include #include #define PCI_UHCI_VENDORID_INTEL 0x8086 #define PCI_UHCI_VENDORID_VIA 0x1106 #define PCI_UHCI_DEVICEID_PIIX3 0x70208086ul static const char *uhci_device_piix3 = "Intel 82371SB (PIIX3) USB Host Controller"; #define PCI_UHCI_DEVICEID_PIIX4 0x71128086ul #define PCI_UHCI_DEVICEID_PIIX4E 0x71128086ul /* no separate step */ static const char *uhci_device_piix4 = "Intel 82371AB/EB (PIIX4) USB Host Controller"; #define PCI_UHCI_DEVICEID_VT83C572 0x30381106ul static const char *uhci_device_vt83c572 = "VIA 83C572 USB Host Controller"; static const char *uhci_device_generic = "UHCI (generic) USB Controller"; #define PCI_UHCI_BASE_REG 0x20 static const char * uhci_pci_match(device_t dev) { u_int32_t device_id = pci_get_devid(dev); if (device_id == PCI_UHCI_DEVICEID_PIIX3) { return (uhci_device_piix3); } else if (device_id == PCI_UHCI_DEVICEID_PIIX4) { return (uhci_device_piix4); } else if (device_id == PCI_UHCI_DEVICEID_VT83C572) { return (uhci_device_vt83c572); } else { if ( pci_get_class(dev) == PCIC_SERIALBUS && pci_get_subclass(dev) == PCIS_SERIALBUS_USB && pci_get_progif(dev) == PCI_INTERFACE_UHCI) { return (uhci_device_generic); } } return NULL; /* dunno... */ } static int uhci_pci_probe(device_t dev) { const char *desc = uhci_pci_match(dev); if (desc) { device_set_desc(dev, desc); return 0; } else { return ENXIO; } } static int uhci_pci_attach(device_t dev) { int unit = device_get_unit(dev); int legsup; char *typestr; usbd_status err; device_t usbus; uhci_softc_t *sc = device_get_softc(dev); int rid; struct resource *res; void *ih; int error; rid = PCI_UHCI_BASE_REG; res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE); if (!res) { device_printf(dev, "could not map ports\n"); return ENXIO; } sc->iot = rman_get_bustag(res); sc->ioh = rman_get_bushandle(res); bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0); /* disable interrupts */ rid = 0; res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); if (res == NULL) { device_printf(dev, "could not allocate irq\n"); return ENOMEM; } error = bus_setup_intr(dev, res, (driver_intr_t *) uhci_intr, sc, &ih); if (error) { device_printf(dev, "could not setup irq\n"); return error; } usbus = device_add_child(dev, "usb", -1, sc); if (!usbus) { printf("usb%d: could not add USB device\n", unit); return ENOMEM; } switch (pci_get_devid(dev)) { case PCI_UHCI_DEVICEID_PIIX3: device_set_desc(usbus, uhci_device_piix3); sprintf(sc->sc_vendor, "Intel"); break; case PCI_UHCI_DEVICEID_PIIX4: device_set_desc(usbus, uhci_device_piix4); sprintf(sc->sc_vendor, "Intel"); break; case PCI_UHCI_DEVICEID_VT83C572: device_set_desc(usbus, uhci_device_vt83c572); sprintf(sc->sc_vendor, "VIA"); break; default: printf("(New UHCI DeviceId=0x%08x)\n", pci_get_devid(dev)); device_set_desc(usbus, uhci_device_generic); sprintf(sc->sc_vendor, "(0x%08x)", pci_get_devid(dev)); } if (bootverbose) { switch(pci_read_config(dev, PCI_USBREV, 4) & PCI_USBREV_MASK) { case PCI_USBREV_PRE_1_0: typestr = "pre 1.0"; break; case PCI_USBREV_1_0: typestr = "1.0"; break; default: typestr = "unknown"; break; } printf("uhci%d: USB version %s, chip rev. %d\n", unit, typestr, pci_get_revid(dev)); } legsup = pci_read_config(dev, PCI_LEGSUP, 4); if ( !(legsup & PCI_LEGSUP_USBPIRQDEN) ) { #if ! (defined(USBVERBOSE) || defined(USB_DEBUG)) if (bootverbose) #endif printf("uhci%d: PIRQD enable not set\n", unit); legsup |= PCI_LEGSUP_USBPIRQDEN; pci_write_config(dev, PCI_LEGSUP, legsup, 4); } sc->sc_bus.bdev = usbus; err = uhci_init(sc); if (err != USBD_NORMAL_COMPLETION) { printf("uhci%d: init failed, error=%d\n", unit, err); device_delete_child(dev, usbus); } return device_probe_and_attach(sc->sc_bus.bdev); } static device_method_t uhci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, uhci_pci_probe), DEVMETHOD(device_attach, uhci_pci_attach), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), DEVMETHOD(bus_release_resource, bus_generic_release_resource), DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), { 0, 0 } }; static driver_t uhci_driver = { "uhci", uhci_methods, DRIVER_TYPE_BIO, sizeof(uhci_softc_t), }; static devclass_t uhci_devclass; DRIVER_MODULE(uhci, pci, uhci_driver, uhci_devclass, 0, 0);