ehci_cardbus.c revision 1.17
1/* $OpenBSD: ehci_cardbus.c,v 1.17 2013/04/15 09:23:00 mglocker 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/rwlock.h> 38#include <sys/device.h> 39#include <sys/proc.h> 40 41#include <machine/bus.h> 42 43#include <dev/cardbus/cardbusvar.h> 44#include <dev/pci/pcidevs.h> 45 46#include <dev/usb/usb.h> 47#include <dev/usb/usbdi.h> 48#include <dev/usb/usbdivar.h> 49#include <dev/usb/usb_mem.h> 50 51#include <dev/usb/ehcireg.h> 52#include <dev/usb/ehcivar.h> 53 54#ifdef EHCI_DEBUG 55#define DPRINTF(x) if (ehcidebug) printf x 56extern int ehcidebug; 57#else 58#define DPRINTF(x) 59#endif 60 61 62int ehci_cardbus_match(struct device *, void *, void *); 63void ehci_cardbus_attach(struct device *, struct device *, void *); 64int ehci_cardbus_detach(struct device *, int); 65 66struct ehci_cardbus_softc { 67 struct ehci_softc sc; 68 cardbus_chipset_tag_t sc_cc; 69 cardbus_function_tag_t sc_cf; 70 cardbus_devfunc_t sc_ct; 71 void *sc_ih; /* interrupt vectoring */ 72}; 73 74struct cfattach ehci_cardbus_ca = { 75 sizeof(struct ehci_cardbus_softc), ehci_cardbus_match, 76 ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate 77}; 78 79#define CARDBUS_CBMEM PCI_CBMEM 80#define cardbus_findvendor pci_findvendor 81 82int 83ehci_cardbus_match(struct device *parent, void *match, void *aux) 84{ 85 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 86 87 if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && 88 PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && 89 PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_EHCI) 90 return (1); 91 92 return (0); 93} 94 95void 96ehci_cardbus_attach(struct device *parent, struct device *self, void *aux) 97{ 98 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self; 99 struct cardbus_attach_args *ca = aux; 100 cardbus_devfunc_t ct = ca->ca_ct; 101 cardbus_chipset_tag_t cc = ct->ct_cc; 102 pci_chipset_tag_t pc = ca->ca_pc; 103 cardbus_function_tag_t cf = ct->ct_cf; 104 pcireg_t csr; 105 usbd_status r; 106 const char *vendor; 107 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 108 109 /* Map I/O registers */ 110 if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 111 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 112 printf(": can't map mem space\n"); 113 return; 114 } 115 116 sc->sc_cc = cc; 117 sc->sc_cf = cf; 118 sc->sc_ct = ct; 119 sc->sc.sc_bus.dmatag = ca->ca_dmat; 120 121 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 122 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 123 124 /* Enable the device. */ 125 csr = pci_conf_read(pc, ca->ca_tag, 126 PCI_COMMAND_STATUS_REG); 127 pci_conf_write(pc, ca->ca_tag, PCI_COMMAND_STATUS_REG, 128 csr | PCI_COMMAND_MASTER_ENABLE 129 | PCI_COMMAND_MEM_ENABLE); 130 131 /* Disable interrupts, so we don't get any spurious ones. */ 132 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 133 DPRINTF((": offs=%d", devname, sc->sc.sc_offs)); 134 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 135 136 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, 137 IPL_USB, ehci_intr, sc, devname); 138 if (sc->sc_ih == NULL) { 139 printf(": unable to establish interrupt\n"); 140 return; 141 } 142 printf(": irq %d\n", ca->ca_intrline); 143 144 /* Figure out vendor for root hub descriptor. */ 145 vendor = cardbus_findvendor(ca->ca_id); 146 sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); 147 if (vendor) 148 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 149 else 150 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 151 "vendor 0x%04x", PCI_VENDOR(ca->ca_id)); 152 153 r = ehci_init(&sc->sc); 154 if (r != USBD_NORMAL_COMPLETION) { 155 printf("%s: init failed, error=%d\n", devname, r); 156 157 /* Avoid spurious interrupts. */ 158 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 159 sc->sc_ih = NULL; 160 161 return; 162 } 163 164 /* Attach usb device. */ 165 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 166 usbctlprint); 167} 168 169int 170ehci_cardbus_detach(struct device *self, int flags) 171{ 172 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self; 173 struct cardbus_devfunc *ct = sc->sc_ct; 174 int rv; 175 176 rv = ehci_detach(&sc->sc, flags); 177 if (rv) 178 return (rv); 179 if (sc->sc_ih != NULL) { 180 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 181 sc->sc_ih = NULL; 182 } 183 if (sc->sc.sc_size) { 184 Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot, 185 sc->sc.ioh, sc->sc.sc_size); 186 sc->sc.sc_size = 0; 187 } 188 return (0); 189} 190