1 /* $NetBSD: ohci_cardbus.c,v 1.39 2011/08/01 11:20:28 drochner 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * USB Open Host Controller driver. 35 * 36 * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf 37 * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: ohci_cardbus.c,v 1.39 2011/08/01 11:20:28 drochner Exp $"); 42 43 #include "ehci_cardbus.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/device.h> 49 #include <sys/proc.h> 50 51 #include <sys/bus.h> 52 53 #if defined pciinc 54 #include <dev/pci/pcidevs.h> 55 #endif 56 57 #include <dev/cardbus/cardbusvar.h> 58 #include <dev/pci/pcidevs.h> 59 60 #include <dev/cardbus/usb_cardbus.h> 61 62 #include <dev/usb/usb.h> 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usbdivar.h> 65 #include <dev/usb/usb_mem.h> 66 67 #include <dev/usb/ohcireg.h> 68 #include <dev/usb/ohcivar.h> 69 70 int ohci_cardbus_match(device_t, cfdata_t, void *); 71 void ohci_cardbus_attach(device_t, device_t, void *); 72 int ohci_cardbus_detach(device_t, int); 73 74 struct ohci_cardbus_softc { 75 ohci_softc_t sc; 76 #if NEHCI_CARDBUS > 0 77 struct usb_cardbus sc_cardbus; 78 #endif 79 cardbus_chipset_tag_t sc_cc; 80 cardbus_function_tag_t sc_cf; 81 cardbus_devfunc_t sc_ct; 82 void *sc_ih; /* interrupt vectoring */ 83 }; 84 85 CFATTACH_DECL_NEW(ohci_cardbus, sizeof(struct ohci_cardbus_softc), 86 ohci_cardbus_match, ohci_cardbus_attach, ohci_cardbus_detach, ohci_activate); 87 88 int 89 ohci_cardbus_match(device_t parent, cfdata_t match, void *aux) 90 { 91 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 92 93 if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && 94 PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && 95 PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_OHCI) 96 return (1); 97 98 return (0); 99 } 100 101 void 102 ohci_cardbus_attach(device_t parent, device_t self, void *aux) 103 { 104 struct ohci_cardbus_softc *sc = device_private(self); 105 struct cardbus_attach_args *ca = aux; 106 cardbus_devfunc_t ct = ca->ca_ct; 107 cardbus_chipset_tag_t cc = ct->ct_cc; 108 cardbus_function_tag_t cf = ct->ct_cf; 109 pcireg_t csr; 110 char devinfo[256]; 111 usbd_status r; 112 const char *vendor; 113 const char *devname = device_xname(self); 114 115 sc->sc.sc_dev = self; 116 sc->sc.sc_bus.hci_private = sc; 117 118 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 119 printf(": %s (rev. 0x%02x)\n", devinfo, 120 PCI_REVISION(ca->ca_class)); 121 122 /* Map I/O registers */ 123 if (Cardbus_mapreg_map(ct, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 124 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 125 printf("%s: can't map mem space\n", devname); 126 return; 127 } 128 129 sc->sc_cc = cc; 130 sc->sc_cf = cf; 131 sc->sc_ct = ct; 132 sc->sc.sc_bus.dmatag = ca->ca_dmat; 133 134 /* Enable the device. */ 135 csr = Cardbus_conf_read(ct, ca->ca_tag, 136 PCI_COMMAND_STATUS_REG); 137 Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, 138 csr | PCI_COMMAND_MASTER_ENABLE 139 | PCI_COMMAND_MEM_ENABLE); 140 141 /* Disable interrupts, so we don't can any spurious ones. */ 142 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 143 OHCI_ALL_INTRS); 144 145 sc->sc_ih = Cardbus_intr_establish(ct, IPL_USB, ohci_intr, sc); 146 if (sc->sc_ih == NULL) { 147 printf("%s: couldn't establish interrupt\n", devname); 148 return; 149 } 150 151 /* Figure out vendor for root hub descriptor. */ 152 vendor = pci_findvendor(ca->ca_id); 153 sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); 154 if (vendor) 155 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 156 else 157 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 158 "vendor 0x%04x", PCI_VENDOR(ca->ca_id)); 159 160 r = ohci_init(&sc->sc); 161 if (r != USBD_NORMAL_COMPLETION) { 162 printf("%s: init failed, error=%d\n", devname, r); 163 164 /* Avoid spurious interrupts. */ 165 Cardbus_intr_disestablish(ct, sc->sc_ih); 166 sc->sc_ih = 0; 167 168 return; 169 } 170 171 #if NEHCI_CARDBUS > 0 172 usb_cardbus_add(&sc->sc_cardbus, ca, self); 173 #endif 174 175 if (!pmf_device_register1(self, ohci_suspend, ohci_resume, 176 ohci_shutdown)) 177 aprint_error_dev(self, "couldn't establish power handler\n"); 178 179 /* Attach usb device. */ 180 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 181 } 182 183 int 184 ohci_cardbus_detach(device_t self, int flags) 185 { 186 struct ohci_cardbus_softc *sc = device_private(self); 187 struct cardbus_devfunc *ct = sc->sc_ct; 188 int rv; 189 190 rv = ohci_detach(&sc->sc, flags); 191 if (rv) 192 return (rv); 193 if (sc->sc_ih != NULL) { 194 Cardbus_intr_disestablish(ct, sc->sc_ih); 195 sc->sc_ih = NULL; 196 } 197 if (sc->sc.sc_size) { 198 Cardbus_mapreg_unmap(ct, PCI_CBMEM, sc->sc.iot, 199 sc->sc.ioh, sc->sc.sc_size); 200 sc->sc.sc_size = 0; 201 } 202 #if NEHCI_CARDBUS > 0 203 usb_cardbus_rem(&sc->sc_cardbus); 204 #endif 205 return (0); 206 } 207