1 /* $NetBSD: ohci_pci.c,v 1.33 2007/12/09 20:28:11 jmcneill 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: ohci_pci.c,v 1.33 2007/12/09 20:28:11 jmcneill Exp $"); 42 43 #include "ehci.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 #include <sys/queue.h> 51 52 #include <sys/bus.h> 53 54 #include <dev/pci/pcivar.h> 55 #include <dev/pci/usb_pci.h> 56 57 #include <dev/usb/usb.h> 58 #include <dev/usb/usbdi.h> 59 #include <dev/usb/usbdivar.h> 60 #include <dev/usb/usb_mem.h> 61 62 #include <dev/usb/ohcireg.h> 63 #include <dev/usb/ohcivar.h> 64 65 struct ohci_pci_softc { 66 ohci_softc_t sc; 67 #if NEHCI > 0 68 struct usb_pci sc_pci; 69 #endif 70 pci_chipset_tag_t sc_pc; 71 pcitag_t sc_tag; 72 void *sc_ih; /* interrupt vectoring */ 73 }; 74 75 static int 76 ohci_pci_match(struct device *parent, struct cfdata *match, 77 void *aux) 78 { 79 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 80 81 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 82 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 83 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 84 return (1); 85 86 return (0); 87 } 88 89 static void 90 ohci_pci_attach(struct device *parent, struct device *self, void *aux) 91 { 92 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 93 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 94 pci_chipset_tag_t pc = pa->pa_pc; 95 pcitag_t tag = pa->pa_tag; 96 char const *intrstr; 97 pci_intr_handle_t ih; 98 pcireg_t csr; 99 char devinfo[256]; 100 usbd_status r; 101 const char *vendor; 102 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 103 104 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 105 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 106 107 /* Map I/O registers */ 108 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 109 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 110 printf("%s: can't map mem space\n", devname); 111 return; 112 } 113 114 /* Disable interrupts, so we don't get any spurious ones. */ 115 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 116 OHCI_ALL_INTRS); 117 118 sc->sc_pc = pc; 119 sc->sc_tag = tag; 120 sc->sc.sc_bus.dmatag = pa->pa_dmat; 121 122 /* Enable the device. */ 123 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 124 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 125 csr | PCI_COMMAND_MASTER_ENABLE); 126 127 /* Map and establish the interrupt. */ 128 if (pci_intr_map(pa, &ih)) { 129 printf("%s: couldn't map interrupt\n", devname); 130 return; 131 } 132 intrstr = pci_intr_string(pc, ih); 133 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 134 if (sc->sc_ih == NULL) { 135 printf("%s: couldn't establish interrupt", devname); 136 if (intrstr != NULL) 137 printf(" at %s", intrstr); 138 printf("\n"); 139 return; 140 } 141 printf("%s: interrupting at %s\n", devname, intrstr); 142 143 /* Figure out vendor for root hub descriptor. */ 144 vendor = pci_findvendor(pa->pa_id); 145 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 146 if (vendor) 147 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 148 else 149 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 150 "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 151 152 r = ohci_init(&sc->sc); 153 if (r != USBD_NORMAL_COMPLETION) { 154 printf("%s: init failed, error=%d\n", devname, r); 155 return; 156 } 157 158 #if NEHCI > 0 159 usb_pci_add(&sc->sc_pci, pa, &sc->sc.sc_bus); 160 #endif 161 162 if (!pmf_device_register(self, ohci_suspend, ohci_resume)) 163 aprint_error_dev(self, "couldn't establish power handler\n"); 164 165 /* Attach usb device. */ 166 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 167 usbctlprint); 168 } 169 170 static int 171 ohci_pci_detach(device_ptr_t self, int flags) 172 { 173 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 174 int rv; 175 176 rv = ohci_detach(&sc->sc, flags); 177 if (rv) 178 return (rv); 179 if (sc->sc_ih != NULL) { 180 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 181 sc->sc_ih = NULL; 182 } 183 if (sc->sc.sc_size) { 184 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 185 sc->sc.sc_size = 0; 186 } 187 #if NEHCI > 0 188 usb_pci_rem(&sc->sc_pci); 189 #endif 190 return (0); 191 } 192 193 CFATTACH_DECL(ohci_pci, sizeof(struct ohci_pci_softc), 194 ohci_pci_match, ohci_pci_attach, ohci_pci_detach, ohci_activate); 195