ohci_pci.c revision 1.40
1/* $NetBSD: ohci_pci.c,v 1.40 2009/04/17 17:31:01 dyoung 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#include <sys/cdefs.h> 34__KERNEL_RCSID(0, "$NetBSD: ohci_pci.c,v 1.40 2009/04/17 17:31:01 dyoung Exp $"); 35 36#include "ehci.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/pci/pcivar.h> 48#include <dev/pci/usb_pci.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/ohcireg.h> 56#include <dev/usb/ohcivar.h> 57 58struct ohci_pci_softc { 59 ohci_softc_t sc; 60#if NEHCI > 0 61 struct usb_pci sc_pci; 62#endif 63 pci_chipset_tag_t sc_pc; 64 pcitag_t sc_tag; 65 void *sc_ih; /* interrupt vectoring */ 66}; 67 68static int 69ohci_pci_match(device_t parent, struct cfdata *match, void *aux) 70{ 71 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 72 73 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 74 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 75 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 76 return (1); 77 78 return (0); 79} 80 81static void 82ohci_pci_attach(device_t parent, device_t self, void *aux) 83{ 84 struct ohci_pci_softc *sc = device_private(self); 85 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 86 pci_chipset_tag_t pc = pa->pa_pc; 87 pcitag_t tag = pa->pa_tag; 88 char const *intrstr; 89 pci_intr_handle_t ih; 90 pcireg_t csr; 91 char devinfo[256]; 92 usbd_status r; 93 const char *vendor; 94 const char *devname = device_xname(self); 95 96 sc->sc.sc_dev = self; 97 sc->sc.sc_bus.hci_private = sc; 98 99 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 100 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 101 102 /* Map I/O registers */ 103 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 104 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 105 printf("%s: can't map mem space\n", devname); 106 return; 107 } 108 109 /* Disable interrupts, so we don't get any spurious ones. */ 110 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 111 OHCI_ALL_INTRS); 112 113 sc->sc_pc = pc; 114 sc->sc_tag = tag; 115 sc->sc.sc_bus.dmatag = pa->pa_dmat; 116 117 /* Enable the device. */ 118 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 119 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 120 csr | PCI_COMMAND_MASTER_ENABLE); 121 122 /* Map and establish the interrupt. */ 123 if (pci_intr_map(pa, &ih)) { 124 printf("%s: couldn't map interrupt\n", devname); 125 return; 126 } 127 intrstr = pci_intr_string(pc, ih); 128 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 129 if (sc->sc_ih == NULL) { 130 printf("%s: couldn't establish interrupt", devname); 131 if (intrstr != NULL) 132 printf(" at %s", intrstr); 133 printf("\n"); 134 return; 135 } 136 printf("%s: interrupting at %s\n", devname, intrstr); 137 138 /* Figure out vendor for root hub descriptor. */ 139 vendor = pci_findvendor(pa->pa_id); 140 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 141 if (vendor) 142 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 143 else 144 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 145 "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 146 147 r = ohci_init(&sc->sc); 148 if (r != USBD_NORMAL_COMPLETION) { 149 printf("%s: init failed, error=%d\n", devname, r); 150 return; 151 } 152 153#if NEHCI > 0 154 usb_pci_add(&sc->sc_pci, pa, self); 155#endif 156 157 if (!pmf_device_register1(self, ohci_suspend, ohci_resume, 158 ohci_shutdown)) 159 aprint_error_dev(self, "couldn't establish power handler\n"); 160 161 /* Attach usb device. */ 162 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 163} 164 165static int 166ohci_pci_detach(device_ptr_t self, int flags) 167{ 168 struct ohci_pci_softc *sc = device_private(self); 169 int rv; 170 171 rv = ohci_detach(&sc->sc, flags); 172 if (rv) 173 return (rv); 174 175 /* Disable interrupts, so we don't get any spurious ones. */ 176 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 177 OHCI_ALL_INTRS); 178 179 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 193CFATTACH_DECL2_NEW(ohci_pci, sizeof(struct ohci_pci_softc), 194 ohci_pci_match, ohci_pci_attach, ohci_pci_detach, ohci_activate, NULL, 195 ohci_childdet); 196