/* * 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. * * $FreeBSD$ */ /* 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 #if defined(__FreeBSD__) #include #include #include #include #endif #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 0x70208086 static const char *uhci_device_piix3 = "Intel 82371SB (PIIX3) USB controller"; #define PCI_UHCI_DEVICEID_PIIX4 0x71128086 #define PCI_UHCI_DEVICEID_PIIX4E 0x71128086 /* no separate stepping */ static const char *uhci_device_piix4 = "Intel 82371AB/EB (PIIX4) USB controller"; #define PCI_UHCI_DEVICEID_VT83C572 0x30381106 static const char *uhci_device_vt83c572 = "VIA 83C572 USB controller"; static const char *uhci_device_generic = "UHCI (generic) USB controller"; #define PCI_UHCI_BASE_REG 0x20 static int uhci_pci_suspend(device_t self) { uhci_softc_t *sc = device_get_softc(self); bus_generic_suspend(self); return 0; } static int uhci_pci_resume(device_t self) { uhci_softc_t *sc = device_get_softc(self); #if 0 uhci_reset(sc); #endif bus_generic_resume(self); return 0; } static const char * uhci_pci_match(device_t self) { u_int32_t device_id = pci_get_devid(self); 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(self) == PCIC_SERIALBUS && pci_get_subclass(self) == PCIS_SERIALBUS_USB && pci_get_progif(self) == PCI_INTERFACE_UHCI) { return (uhci_device_generic); } } return NULL; /* dunno... */ } static int uhci_pci_probe(device_t self) { const char *desc = uhci_pci_match(self); if (desc) { device_set_desc(self, desc); return 0; } else { return ENXIO; } } static int uhci_pci_attach(device_t self) { uhci_softc_t *sc = device_get_softc(self); device_t parent = device_get_parent(self); int rid; void *ih; struct resource *res; device_t usbus; int intr; int legsup; int err; rid = PCI_UHCI_BASE_REG; res = bus_alloc_resource(self, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE); if (!res) { device_printf(self, "could not map ports\n"); return ENXIO; } sc->iot = rman_get_bustag(res); sc->ioh = rman_get_bushandle(res); /* disable interrupts */ bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0); rid = 0; res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); if (res == NULL) { device_printf(self, "could not allocate irq\n"); return ENOMEM; } usbus = device_add_child(self, "usb", -1, sc); if (!usbus) { device_printf(self, "could not add USB device\n"); return ENOMEM; } switch (pci_get_devid(self)) { 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: device_printf(self, "(New UHCI DeviceId=0x%08x)\n", pci_get_devid(self)); device_set_desc(usbus, uhci_device_generic); sprintf(sc->sc_vendor, "(0x%08x)", pci_get_devid(self)); } switch(pci_read_config(self, PCI_USBREV, 4) & PCI_USBREV_MASK) { case PCI_USBREV_PRE_1_0: sc->sc_bus.usbrev = USBREV_PRE_1_0; break; case PCI_USBREV_1_0: sc->sc_bus.usbrev = USBREV_1_0; break; default: sc->sc_bus.usbrev = USBREV_UNKNOWN; break; } intr = pci_read_config(self, PCIR_INTLINE, 1); if (intr == 0 || intr == 255) { device_printf(self, "Invalid irq %d\n", intr); device_printf(self, "Please switch on USB support and switch PNP-OS to 'No' in BIOS\n"); device_delete_child(self, usbus); return ENXIO; } err = BUS_SETUP_INTR(parent, self, res, INTR_TYPE_BIO, (driver_intr_t *) uhci_intr, sc, &ih); if (err) { device_printf(self, "could not setup irq, %d\n", err); device_delete_child(self, usbus); return err; } /* Verify that the PIRQD enable bit is set, some BIOS's don't do that */ legsup = pci_read_config(self, PCI_LEGSUP, 4); if ( !(legsup & PCI_LEGSUP_USBPIRQDEN) ) { #ifndef USB_DEBUG if (bootverbose) #endif device_printf(self, "PIRQD enable not set\n"); legsup |= PCI_LEGSUP_USBPIRQDEN; pci_write_config(self, PCI_LEGSUP, legsup, 4); } sc->sc_bus.bdev = usbus; err = uhci_init(sc); if (!err) err = device_probe_and_attach(sc->sc_bus.bdev); if (err) { device_printf(self, "init failed\n"); /* disable interrupts that might have been switched on * in uhci_init */ bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0); err = BUS_TEARDOWN_INTR(parent, self, res, ih); if (err) /* XXX or should we panic? */ device_printf(self, "could not tear down irq, %d\n", err); device_delete_child(self, usbus); return EIO; /* XXX arbitrary value */ } return 0; } static device_method_t uhci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, uhci_pci_probe), DEVMETHOD(device_attach, uhci_pci_attach), DEVMETHOD(device_suspend, uhci_pci_suspend), DEVMETHOD(device_resume, uhci_pci_resume), DEVMETHOD(device_shutdown, bus_generic_shutdown), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), { 0, 0 } }; static driver_t uhci_driver = { "uhci", uhci_methods, sizeof(uhci_softc_t), }; static devclass_t uhci_devclass; DRIVER_MODULE(uhci, pci, uhci_driver, uhci_devclass, 0, 0);