Annotation of sys/dev/cardbus/uhci_cardbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: uhci_cardbus.c,v 1.5 2006/10/12 16:35:52 grange Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1998 The NetBSD Foundation, Inc.
! 5: * All rights reserved.
! 6: *
! 7: * This code is derived from software contributed to The NetBSD Foundation
! 8: * by Lennart Augustsson (lennart@augustsson.net) at
! 9: * Carlstedt Research & Technology.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: #include <sys/param.h>
! 41: #include <sys/systm.h>
! 42: #include <sys/kernel.h>
! 43: #include <sys/device.h>
! 44: #include <sys/proc.h>
! 45:
! 46: #include <machine/bus.h>
! 47:
! 48: #include <dev/cardbus/cardbusvar.h>
! 49: #include <dev/pci/pcidevs.h>
! 50:
! 51: #include <dev/usb/usb.h>
! 52: #include <dev/usb/usbdi.h>
! 53: #include <dev/usb/usbdivar.h>
! 54: #include <dev/usb/usb_mem.h>
! 55:
! 56: #include <dev/usb/uhcireg.h>
! 57: #include <dev/usb/uhcivar.h>
! 58:
! 59: int uhci_cardbus_match(struct device *, void *, void *);
! 60: void uhci_cardbus_attach(struct device *, struct device *, void *);
! 61: int uhci_cardbus_detach(struct device *, int);
! 62:
! 63: struct uhci_cardbus_softc {
! 64: uhci_softc_t sc;
! 65: cardbus_chipset_tag_t sc_cc;
! 66: cardbus_function_tag_t sc_cf;
! 67: cardbus_devfunc_t sc_ct;
! 68: void *sc_ih; /* interrupt vectoring */
! 69: };
! 70:
! 71: struct cfattach uhci_cardbus_ca = {
! 72: sizeof(struct uhci_cardbus_softc), uhci_cardbus_match,
! 73: uhci_cardbus_attach, uhci_cardbus_detach, uhci_activate
! 74: };
! 75:
! 76: #define CARDBUS_INTERFACE_UHCI PCI_INTERFACE_UHCI
! 77: #define cardbus_findvendor pci_findvendor
! 78: #define cardbus_devinfo pci_devinfo
! 79:
! 80: int
! 81: uhci_cardbus_match(struct device *parent, void *match, void *aux)
! 82: {
! 83: struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
! 84:
! 85: if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
! 86: CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
! 87: CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_UHCI)
! 88: return (1);
! 89:
! 90: return (0);
! 91: }
! 92:
! 93: void
! 94: uhci_cardbus_attach(struct device *parent, struct device *self, void *aux)
! 95: {
! 96: struct uhci_cardbus_softc *sc = (struct uhci_cardbus_softc *)self;
! 97: struct cardbus_attach_args *ca = aux;
! 98: cardbus_devfunc_t ct = ca->ca_ct;
! 99: cardbus_chipset_tag_t cc = ct->ct_cc;
! 100: cardbus_function_tag_t cf = ct->ct_cf;
! 101: cardbusreg_t csr;
! 102: char devinfo[256];
! 103: usbd_status r;
! 104: const char *vendor;
! 105: const char *devname = sc->sc.sc_bus.bdev.dv_xname;
! 106:
! 107: cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
! 108: printf(" %s", devinfo);
! 109:
! 110: /* Map I/O registers */
! 111: if (Cardbus_mapreg_map(ct, PCI_CBIO, CARDBUS_MAPREG_TYPE_IO, 0,
! 112: &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
! 113: printf("%s: can't map io space\n", devname);
! 114: return;
! 115: }
! 116:
! 117: /* Disable interrupts, so we don't get any spurious ones. */
! 118: bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
! 119:
! 120: sc->sc_cc = cc;
! 121: sc->sc_cf = cf;
! 122: sc->sc_ct = ct;
! 123: sc->sc.sc_bus.dmatag = ca->ca_dmat;
! 124:
! 125: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE);
! 126: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
! 127:
! 128: /* Enable the device. */
! 129: csr = cardbus_conf_read(cc, cf, ca->ca_tag,
! 130: CARDBUS_COMMAND_STATUS_REG);
! 131: cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
! 132: csr | CARDBUS_COMMAND_MASTER_ENABLE
! 133: | CARDBUS_COMMAND_IO_ENABLE);
! 134:
! 135: sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
! 136: IPL_USB, uhci_intr, sc, devname);
! 137: if (sc->sc_ih == NULL) {
! 138: printf("%s: couldn't establish interrupt\n", devname);
! 139: return;
! 140: }
! 141: printf(": irq %d\n", ca->ca_intrline);
! 142:
! 143: /* Set LEGSUP register to its default value. */
! 144: cardbus_conf_write(cc, cf, ca->ca_tag, PCI_LEGSUP,
! 145: PCI_LEGSUP_USBPIRQDEN);
! 146:
! 147: switch(cardbus_conf_read(cc, cf, ca->ca_tag, PCI_USBREV) & PCI_USBREV_MASK) {
! 148: case PCI_USBREV_PRE_1_0:
! 149: sc->sc.sc_bus.usbrev = USBREV_PRE_1_0;
! 150: break;
! 151: case PCI_USBREV_1_0:
! 152: sc->sc.sc_bus.usbrev = USBREV_1_0;
! 153: break;
! 154: case PCI_USBREV_1_1:
! 155: sc->sc.sc_bus.usbrev = USBREV_1_1;
! 156: break;
! 157: default:
! 158: sc->sc.sc_bus.usbrev = USBREV_UNKNOWN;
! 159: break;
! 160: }
! 161:
! 162: uhci_run(&sc->sc, 0); /* stop the controller */
! 163: /* disable interrupts */
! 164: bus_space_barrier(sc->sc.iot, sc->sc.ioh, 0, sc->sc.sc_size,
! 165: BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
! 166: bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
! 167:
! 168: /* Figure out vendor for root hub descriptor. */
! 169: vendor = cardbus_findvendor(ca->ca_id);
! 170: sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
! 171: if (vendor)
! 172: strlcpy(sc->sc.sc_vendor, vendor, sizeof (sc->sc.sc_vendor));
! 173: else
! 174: snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
! 175: "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id));
! 176:
! 177: r = uhci_init(&sc->sc);
! 178: if (r != USBD_NORMAL_COMPLETION) {
! 179: printf("%s: init failed, error=%d\n", devname, r);
! 180: bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
! 181: return;
! 182: }
! 183:
! 184: /* Attach usb device. */
! 185: sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
! 186: usbctlprint);
! 187: }
! 188:
! 189: int
! 190: uhci_cardbus_detach(struct device *self, int flags)
! 191: {
! 192: struct uhci_cardbus_softc *sc = (struct uhci_cardbus_softc *)self;
! 193: struct cardbus_devfunc *ct = sc->sc_ct;
! 194: int rv;
! 195:
! 196: rv = uhci_detach(&sc->sc, flags);
! 197: if (rv)
! 198: return (rv);
! 199:
! 200: if (sc->sc_ih != NULL) {
! 201: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
! 202: sc->sc_ih = NULL;
! 203: }
! 204:
! 205: if (sc->sc.sc_size) {
! 206: Cardbus_mapreg_unmap(ct, PCI_CBIO, sc->sc.iot,
! 207: sc->sc.ioh, sc->sc.sc_size);
! 208: sc->sc.sc_size = 0;
! 209: }
! 210:
! 211: return (0);
! 212: }
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