/* $NetBSD: ohci_pci.c,v 1.5 1998/11/25 22:32:04 augustss 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. */ /* * USB Open Host Controller driver. * * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl */ #include #include #include #include #if defined(__FreeBSD__) #include #include #endif #include #include #include #if defined(__NetBSD__) #include #include #elif defined(__FreeBSD__) #include #include #define PCI_CLASS_SERIALBUS 0x0c000000 #define PCI_SUBCLASS_COMMUNICATIONS_SERIAL 0x00000000 #define PCI_SUBCLASS_SERIALBUS_FIREWIRE 0x00000000 #define PCI_SUBCLASS_SERIALBUS_ACCESS 0x00010000 #define PCI_SUBCLASS_SERIALBUS_SSA 0x00020000 #define PCI_SUBCLASS_SERIALBUS_USB 0x00030000 #define PCI_SUBCLASS_SERIALBUS_FIBER 0x00040000 #endif #include #include #include #include #include #include #if defined(__NetBSD__) int ohci_pci_match __P((struct device *, struct cfdata *, void *)); void ohci_pci_attach __P((struct device *, struct device *, void *)); struct cfattach ohci_pci_ca = { sizeof(struct ohci_softc), ohci_pci_match, ohci_pci_attach }; #elif defined(__FreeBSD__) #define PCI_INTERFACE(d) (((d) >> 8) & 0xff) #define PCI_SUBCLASS(d) ((d) & PCI_SUBCLASS_MASK) #define PCI_CLASS(d) ((d) & PCI_CLASS_MASK) #define PCI_VENDOR(d) ((d) & 0xffff) #define PCI_DEVICE(d) (((d) >> 8) & 0xffff) #define PCI_OHCI_BASE_REG 0x10 static char *ohci_pci_probe __P((pcici_t, pcidi_t)); static void ohci_pci_attach __P((pcici_t, int)); u_long ohci_count = 0; /* global counter for nr. of devices found */ static struct pci_device ohci_pci_device = { "ohci", ohci_pci_probe, ohci_pci_attach, &ohci_count, NULL }; DATA_SET(pcidevice_set, ohci_pci_device); #endif #if defined(__NetBSD__) int ohci_pci_match(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct pci_attach_args *pa = (struct pci_attach_args *) aux; if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) return 1; return 0; } #elif defined(__FreeBSD__) static char * ohci_pci_probe(pcici_t config_id, pcidi_t device_id) { u_int32_t class; class = pci_conf_read(config_id, PCI_CLASS_REG); if ( (PCI_CLASS(class) == PCI_CLASS_SERIALBUS) && (PCI_SUBCLASS(class) == PCI_SUBCLASS_SERIALBUS_USB) && (PCI_INTERFACE(class) == PCI_INTERFACE_OHCI)) return("OHCI Host Controller"); return NULL; /* dunno */ } #endif #if defined(__NetBSD__) void ohci_pci_attach(parent, self, aux) struct device *parent; struct device *self; void *aux; { struct ohci_softc *sc = (struct ohci_softc *)self; struct pci_attach_args *pa = (struct pci_attach_args *)aux; pci_chipset_tag_t pc = pa->pa_pc; char const *intrstr; pci_intr_handle_t ih; pcireg_t csr; char devinfo[256]; usbd_status r; char *vendor; pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); /* Map I/O registers */ if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, &sc->iot, &sc->ioh, NULL, NULL)) { printf("%s: can't map mem space\n", sc->sc_bus.bdev.dv_xname); return; } sc->sc_dmatag = pa->pa_dmat; /* Enable the device. */ csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr | PCI_COMMAND_MASTER_ENABLE); /* Map and establish the interrupt. */ if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline, &ih)) { printf("%s: couldn't map interrupt\n", sc->sc_bus.bdev.dv_xname); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); if (sc->sc_ih == NULL) { printf("%s: couldn't establish interrupt", sc->sc_bus.bdev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); /* Figure out vendor for root hub descriptor. */ vendor = pci_findvendor(pa->pa_id); if (vendor) strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor)); else sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); r = ohci_init(sc); if (r != USBD_NORMAL_COMPLETION) { printf("%s: init failed, error=%d\n", sc->sc_bus.bdev.dv_xname, r); return; } /* Attach usb device. */ config_found((void *)sc, &sc->sc_bus, usbctlprint); } #elif defined(__FreeBSD__) static void ohci_pci_attach(pcici_t config_id, int unit) { int id; usbd_status r; ohci_softc_t *sc = NULL; int rev; sc = malloc(sizeof(ohci_softc_t), M_DEVBUF, M_NOWAIT); /* Do not free it below, intr might use the sc */ if ( sc == NULL ) { printf("usb%d: could not allocate memory", unit); return; } memset(sc, 0, sizeof(ohci_softc_t)); sc->sc_iobase = pci_conf_read(config_id,PCI_OHCI_BASE_REG) & 0xfffff000; sc->unit = unit; if ( !pci_map_int(config_id, (pci_inthand_t *)ohci_intr, (void *) sc, &bio_imask)) { printf("usb%d: Unable to map irq\n", unit); return; } #ifndef USBVERBOSE if (bootverbose) #endif { /* XXX is this correct? Does the correct version show up? */ rev = inw(sc->sc_iobase+OHCI_REVISION); printf("usb%d: OHCI version %d%d, interrupting at %d\n", unit, OHCI_REV_HI(rev), OHCI_REV_LO(rev), (int)pci_conf_read(config_id,PCI_INTERRUPT_REG) & 0xff); } /* Figure out vendor for root hub descriptor. */ id = pci_conf_read(config_id, PCI_ID_REG); if (PCI_VENDOR(id) == 0x8086) sprintf(sc->sc_vendor, "Intel"); else sprintf(sc->sc_vendor, "Vendor 0x%04x", PCI_VENDOR(id)); /* We add a child to the root bus. After PCI configuration * has completed the root bus will start to probe and * attach all the devices attached to it, including our new * kid. * * FIXME Sometime in the future the UHCI controller itself will * become a kid of PCI device and this device add will no longer * be necessary. * * See README for an elaborate description of the bus * structure in spe. */ sc->sc_bus.bdev = device_add_child(root_bus, "usb", unit, sc); if (!sc->sc_bus.bdev) { DEVICE_ERROR(sc->sc_bus.bdev, ("unable to add USB device to root bus\n")); return; } r = ohci_init(sc); if (r != USBD_NORMAL_COMPLETION) { printf("usb%d: init failed, error=%d\n", unit, r); device_delete_child(root_bus, sc->sc_bus.bdev); return; } device_set_desc(sc->sc_bus.bdev, "OHCI Host Controller"); return; } #endif