Annotation of sys/dev/cardbus/ohci_cardbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ohci_cardbus.c,v 1.9 2007/03/22 05:53:36 pascoe Exp $ */
! 2: /* $NetBSD: ohci_cardbus.c,v 1.19 2004/08/02 19:14:28 mycroft Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Lennart Augustsson (lennart@augustsson.net) at
! 10: * Carlstedt Research & Technology.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. All advertising materials mentioning features or use of this software
! 21: * must display the following acknowledgement:
! 22: * This product includes software developed by the NetBSD
! 23: * Foundation, Inc. and its contributors.
! 24: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 25: * contributors may be used to endorse or promote products derived
! 26: * from this software without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 38: * POSSIBILITY OF SUCH DAMAGE.
! 39: */
! 40:
! 41: /*
! 42: * USB Open Host Controller driver.
! 43: *
! 44: * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
! 45: * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
! 46: */
! 47:
! 48:
! 49: #include <sys/param.h>
! 50: #include <sys/systm.h>
! 51: #include <sys/kernel.h>
! 52: #include <sys/device.h>
! 53: #include <sys/proc.h>
! 54:
! 55: #include <machine/bus.h>
! 56:
! 57: #include <dev/cardbus/cardbusvar.h>
! 58: #include <dev/pci/pcidevs.h>
! 59:
! 60: #include <dev/usb/usb.h>
! 61: #include <dev/usb/usbdi.h>
! 62: #include <dev/usb/usbdivar.h>
! 63: #include <dev/usb/usb_mem.h>
! 64:
! 65: #include <dev/usb/ohcireg.h>
! 66: #include <dev/usb/ohcivar.h>
! 67:
! 68: int ohci_cardbus_match(struct device *, void *, void *);
! 69: void ohci_cardbus_attach(struct device *, struct device *, void *);
! 70: int ohci_cardbus_detach(struct device *, int);
! 71:
! 72: struct ohci_cardbus_softc {
! 73: ohci_softc_t sc;
! 74: cardbus_chipset_tag_t sc_cc;
! 75: cardbus_function_tag_t sc_cf;
! 76: cardbus_devfunc_t sc_ct;
! 77: void *sc_ih; /* interrupt vectoring */
! 78: };
! 79:
! 80: struct cfattach ohci_cardbus_ca = {
! 81: sizeof(struct ohci_cardbus_softc), ohci_cardbus_match,
! 82: ohci_cardbus_attach, ohci_cardbus_detach, ohci_activate
! 83: };
! 84:
! 85: #define CARDBUS_INTERFACE_OHCI PCI_INTERFACE_OHCI
! 86: #define CARDBUS_CBMEM PCI_CBMEM
! 87: #define cardbus_findvendor pci_findvendor
! 88: #define cardbus_devinfo pci_devinfo
! 89:
! 90: int
! 91: ohci_cardbus_match(struct device *parent, void *match, void *aux)
! 92: {
! 93: struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
! 94:
! 95: if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
! 96: CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
! 97: CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_OHCI)
! 98: return (1);
! 99:
! 100: return (0);
! 101: }
! 102:
! 103: void
! 104: ohci_cardbus_attach(struct device *parent, struct device *self, void *aux)
! 105: {
! 106: struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
! 107: struct cardbus_attach_args *ca = aux;
! 108: cardbus_devfunc_t ct = ca->ca_ct;
! 109: cardbus_chipset_tag_t cc = ct->ct_cc;
! 110: cardbus_function_tag_t cf = ct->ct_cf;
! 111: cardbusreg_t csr;
! 112: char devinfo[256];
! 113: usbd_status r;
! 114: const char *vendor;
! 115: const char *devname = sc->sc.sc_bus.bdev.dv_xname;
! 116:
! 117: cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
! 118: printf(" %s", devinfo);
! 119:
! 120: /* Map I/O registers */
! 121: if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0,
! 122: &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
! 123: printf("%s: can't map mem space\n", devname);
! 124: return;
! 125: }
! 126:
! 127: /* Disable interrupts, so we don't get any spurious ones. */
! 128: bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
! 129: OHCI_MIE);
! 130:
! 131: sc->sc_cc = cc;
! 132: sc->sc_cf = cf;
! 133: sc->sc_ct = ct;
! 134: sc->sc.sc_bus.dmatag = ca->ca_dmat;
! 135:
! 136: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
! 137: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
! 138:
! 139: /* Enable the device. */
! 140: csr = cardbus_conf_read(cc, cf, ca->ca_tag,
! 141: CARDBUS_COMMAND_STATUS_REG);
! 142: cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
! 143: csr | CARDBUS_COMMAND_MASTER_ENABLE
! 144: | CARDBUS_COMMAND_MEM_ENABLE);
! 145:
! 146: sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
! 147: IPL_USB, ohci_intr, sc, devname);
! 148: if (sc->sc_ih == NULL) {
! 149: printf("%s: couldn't establish interrupt\n", devname);
! 150: return;
! 151: }
! 152: printf(": irq %d", ca->ca_intrline);
! 153:
! 154: /* Figure out vendor for root hub descriptor. */
! 155: vendor = cardbus_findvendor(ca->ca_id);
! 156: sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
! 157: if (vendor)
! 158: strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
! 159: else
! 160: snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
! 161: "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id));
! 162:
! 163: /* Display revision and perform legacy emulation handover. */
! 164: if (ohci_checkrev(&sc->sc) != USBD_NORMAL_COMPLETION ||
! 165: ohci_handover(&sc->sc) != USBD_NORMAL_COMPLETION) {
! 166: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
! 167: sc->sc_ih = 0;
! 168: return;
! 169: }
! 170:
! 171: r = ohci_init(&sc->sc);
! 172: if (r != USBD_NORMAL_COMPLETION) {
! 173: printf("%s: init failed, error=%d\n", devname, r);
! 174:
! 175: /* Avoid spurious interrupts. */
! 176: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
! 177: sc->sc_ih = 0;
! 178:
! 179: return;
! 180: }
! 181:
! 182: sc->sc.sc_powerhook = powerhook_establish(ohci_power, &sc->sc);
! 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: ohci_cardbus_detach(struct device *self, int flags)
! 191: {
! 192: struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
! 193: struct cardbus_devfunc *ct = sc->sc_ct;
! 194: int rv;
! 195:
! 196: rv = ohci_detach(&sc->sc, flags);
! 197: if (rv)
! 198: return (rv);
! 199:
! 200: if (sc->sc.sc_powerhook != NULL)
! 201: powerhook_disestablish(sc->sc.sc_powerhook);
! 202:
! 203: if (sc->sc_ih != NULL) {
! 204: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
! 205: sc->sc_ih = NULL;
! 206: }
! 207: if (sc->sc.sc_size) {
! 208: Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
! 209: sc->sc.ioh, sc->sc.sc_size);
! 210: sc->sc.sc_size = 0;
! 211: }
! 212:
! 213: return (0);
! 214: }
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