ehci_cardbus.c revision 1.9
1/* $OpenBSD: ehci_cardbus.c,v 1.9 2007/05/20 00:52:26 jsg Exp $ */ 2/* $NetBSD: ehci_cardbus.c,v 1.6.6.3 2004/09/21 13:27:25 skrll 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#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/kernel.h> 44#include <sys/rwlock.h> 45#include <sys/device.h> 46#include <sys/proc.h> 47 48#include <machine/bus.h> 49 50#include <dev/cardbus/cardbusvar.h> 51#include <dev/pci/pcidevs.h> 52 53#include <dev/usb/usb.h> 54#include <dev/usb/usbdi.h> 55#include <dev/usb/usbdivar.h> 56#include <dev/usb/usb_mem.h> 57 58#include <dev/usb/ehcireg.h> 59#include <dev/usb/ehcivar.h> 60 61#ifdef EHCI_DEBUG 62#define DPRINTF(x) if (ehcidebug) printf x 63extern int ehcidebug; 64#else 65#define DPRINTF(x) 66#endif 67 68 69int ehci_cardbus_match(struct device *, void *, void *); 70void ehci_cardbus_attach(struct device *, struct device *, void *); 71int ehci_cardbus_detach(struct device *, int); 72 73struct ehci_cardbus_softc { 74 ehci_softc_t sc; 75 cardbus_chipset_tag_t sc_cc; 76 cardbus_function_tag_t sc_cf; 77 cardbus_devfunc_t sc_ct; 78 void *sc_ih; /* interrupt vectoring */ 79}; 80 81struct cfattach ehci_cardbus_ca = { 82 sizeof(struct ehci_cardbus_softc), ehci_cardbus_match, 83 ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate 84}; 85 86#define CARDBUS_INTERFACE_EHCI PCI_INTERFACE_EHCI 87#define CARDBUS_CBMEM PCI_CBMEM 88#define cardbus_findvendor pci_findvendor 89#define cardbus_devinfo pci_devinfo 90 91int 92ehci_cardbus_match(struct device *parent, void *match, void *aux) 93{ 94 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 95 96 if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS && 97 CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB && 98 CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_EHCI) 99 return (1); 100 101 return (0); 102} 103 104void 105ehci_cardbus_attach(struct device *parent, struct device *self, void *aux) 106{ 107 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self; 108 struct cardbus_attach_args *ca = aux; 109 cardbus_devfunc_t ct = ca->ca_ct; 110 cardbus_chipset_tag_t cc = ct->ct_cc; 111 cardbus_function_tag_t cf = ct->ct_cf; 112 cardbusreg_t csr; 113 char devinfo[256]; 114 usbd_status r; 115 const char *vendor; 116 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 117 118 cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 119 printf(" %s", devinfo); 120 121 /* Map I/O registers */ 122 if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 123 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 124 printf("%s: can't map mem space\n", devname); 125 return; 126 } 127 128 sc->sc_cc = cc; 129 sc->sc_cf = cf; 130 sc->sc_ct = ct; 131 sc->sc.sc_bus.dmatag = ca->ca_dmat; 132 133 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 134 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 135 136 /* Enable the device. */ 137 csr = cardbus_conf_read(cc, cf, ca->ca_tag, 138 CARDBUS_COMMAND_STATUS_REG); 139 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 140 csr | CARDBUS_COMMAND_MASTER_ENABLE 141 | CARDBUS_COMMAND_MEM_ENABLE); 142 143 /* Disable interrupts, so we don't get any spurious ones. */ 144 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 145 DPRINTF((": offs=%d", devname, sc->sc.sc_offs)); 146 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 147 148 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, 149 IPL_USB, ehci_intr, sc, devname); 150 if (sc->sc_ih == NULL) { 151 printf(": unable to establish interrupt\n"); 152 return; 153 } 154 printf(": irq %d\n", ca->ca_intrline); 155 156 /* Figure out vendor for root hub descriptor. */ 157 vendor = cardbus_findvendor(ca->ca_id); 158 sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id); 159 if (vendor) 160 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 161 else 162 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 163 "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id)); 164 165 r = ehci_init(&sc->sc); 166 if (r != USBD_NORMAL_COMPLETION) { 167 printf("%s: init failed, error=%d\n", devname, r); 168 169 /* Avoid spurious interrupts. */ 170 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 171 sc->sc_ih = NULL; 172 173 return; 174 } 175 176 sc->sc.sc_shutdownhook = shutdownhook_establish(ehci_shutdown, &sc->sc); 177 178 /* Attach usb device. */ 179 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 180 usbctlprint); 181} 182 183int 184ehci_cardbus_detach(struct device *self, int flags) 185{ 186 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self; 187 struct cardbus_devfunc *ct = sc->sc_ct; 188 int rv; 189 190 rv = ehci_detach(&sc->sc, flags); 191 if (rv) 192 return (rv); 193 if (sc->sc_ih != NULL) { 194 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 195 sc->sc_ih = NULL; 196 } 197 if (sc->sc.sc_size) { 198 Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot, 199 sc->sc.ioh, sc->sc.sc_size); 200 sc->sc.sc_size = 0; 201 } 202 return (0); 203} 204 205