1 /* $NetBSD: uhci_cardbus.c,v 1.20 2011/08/01 11:20:28 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1998-2005 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 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: uhci_cardbus.c,v 1.20 2011/08/01 11:20:28 drochner Exp $"); 35 36 #include "ehci_cardbus.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/proc.h> 43 #include <sys/queue.h> 44 45 #include <sys/bus.h> 46 47 #include <dev/cardbus/cardbusvar.h> 48 #include <dev/cardbus/usb_cardbus.h> 49 50 #include <dev/usb/usb.h> 51 #include <dev/usb/usbdi.h> 52 #include <dev/usb/usbdivar.h> 53 #include <dev/usb/usb_mem.h> 54 55 #include <dev/usb/uhcireg.h> 56 #include <dev/usb/uhcivar.h> 57 58 struct uhci_cardbus_softc { 59 uhci_softc_t sc; 60 #if NEHCI_CARDBUS > 0 61 struct usb_cardbus sc_cardbus; 62 #endif 63 cardbus_chipset_tag_t sc_cc; 64 cardbus_function_tag_t sc_cf; 65 cardbus_devfunc_t sc_ct; 66 pcitag_t sc_tag; 67 void *sc_ih; /* interrupt vectoring */ 68 }; 69 70 static int uhci_cardbus_match(device_t, cfdata_t, void *); 71 static void uhci_cardbus_attach(device_t, device_t, void *); 72 static int uhci_cardbus_detach(device_t, int); 73 74 CFATTACH_DECL_NEW(uhci_cardbus, sizeof(struct uhci_cardbus_softc), 75 uhci_cardbus_match, uhci_cardbus_attach, uhci_cardbus_detach, uhci_activate); 76 77 static int 78 uhci_cardbus_match(device_t parent, cfdata_t match, void *aux) 79 { 80 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 81 82 if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && 83 PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && 84 PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_UHCI) 85 return (1); 86 87 return (0); 88 } 89 90 static void 91 uhci_cardbus_attach(device_t parent, device_t self, 92 void *aux) 93 { 94 struct uhci_cardbus_softc *sc = device_private(self); 95 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 96 cardbus_devfunc_t ct = ca->ca_ct; 97 cardbus_chipset_tag_t cc = ct->ct_cc; 98 cardbus_function_tag_t cf = ct->ct_cf; 99 pcitag_t tag = ca->ca_tag; 100 pcireg_t csr; 101 const char *vendor; 102 const char *devname = device_xname(self); 103 char devinfo[256]; 104 usbd_status r; 105 106 sc->sc.sc_dev = self; 107 sc->sc.sc_bus.hci_private = sc; 108 109 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 110 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(ca->ca_class)); 111 112 /* Map I/O registers */ 113 if (Cardbus_mapreg_map(ct, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 114 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 115 printf("%s: can't map i/o space\n", devname); 116 return; 117 } 118 119 sc->sc_cc = cc; 120 sc->sc_cf = cf; 121 sc->sc_ct = ct; 122 sc->sc_tag = tag; 123 sc->sc.sc_bus.dmatag = ca->ca_dmat; 124 125 /* Enable the device. */ 126 csr = Cardbus_conf_read(ct, tag, PCI_COMMAND_STATUS_REG); 127 Cardbus_conf_write(ct, tag, PCI_COMMAND_STATUS_REG, 128 csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE); 129 130 /* Disable interrupts, so we don't get any spurious ones. */ 131 bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0); 132 133 /* Map and establish the interrupt. */ 134 sc->sc_ih = Cardbus_intr_establish(ct, IPL_USB, uhci_intr, sc); 135 if (sc->sc_ih == NULL) { 136 printf("%s: couldn't establish interrupt\n", devname); 137 return; 138 } 139 140 /* Set LEGSUP register to its default value. */ 141 Cardbus_conf_write(ct, tag, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN); 142 143 switch(Cardbus_conf_read(ct, tag, PCI_USBREV) & PCI_USBREV_MASK) { 144 case PCI_USBREV_PRE_1_0: 145 sc->sc.sc_bus.usbrev = USBREV_PRE_1_0; 146 break; 147 case PCI_USBREV_1_0: 148 sc->sc.sc_bus.usbrev = USBREV_1_0; 149 break; 150 case PCI_USBREV_1_1: 151 sc->sc.sc_bus.usbrev = USBREV_1_1; 152 break; 153 default: 154 sc->sc.sc_bus.usbrev = USBREV_UNKNOWN; 155 break; 156 } 157 158 /* Figure out vendor for root hub descriptor. */ 159 vendor = pci_findvendor(ca->ca_id); 160 sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); 161 if (vendor) 162 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 163 else 164 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 165 "vendor 0x%04x", PCI_VENDOR(ca->ca_id)); 166 167 r = uhci_init(&sc->sc); 168 if (r != USBD_NORMAL_COMPLETION) { 169 printf("%s: init failed, error=%d\n", devname, r); 170 171 /* Avoid spurious interrupts. */ 172 Cardbus_intr_disestablish(ct, sc->sc_ih); 173 sc->sc_ih = NULL; 174 175 return; 176 } 177 178 #if NEHCI_CARDBUS > 0 179 usb_cardbus_add(&sc->sc_cardbus, ca, self); 180 #endif 181 182 /* Attach usb device. */ 183 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 184 } 185 186 static int 187 uhci_cardbus_detach(device_t self, int flags) 188 { 189 struct uhci_cardbus_softc *sc = device_private(self); 190 struct cardbus_devfunc *ct = sc->sc_ct; 191 int rv; 192 193 rv = uhci_detach(&sc->sc, flags); 194 if (rv) 195 return (rv); 196 if (sc->sc_ih != NULL) { 197 Cardbus_intr_disestablish(ct, sc->sc_ih); 198 sc->sc_ih = NULL; 199 } 200 if (sc->sc.sc_size) { 201 Cardbus_mapreg_unmap(ct, PCI_CBIO, sc->sc.iot, 202 sc->sc.ioh, sc->sc.sc_size); 203 sc->sc.sc_size = 0; 204 } 205 #if NEHCI_CARDBUS > 0 206 usb_cardbus_rem(&sc->sc_cardbus); 207 #endif 208 return (0); 209 } 210