1 /* $NetBSD: uhci_pci.c,v 1.4 1998/11/25 22:32:04 augustss 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 (augustss@carlstedt.se) 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/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/device.h> 44 #include <sys/proc.h> 45 #include <sys/queue.h> 46 47 #include <machine/bus.h> 48 49 #include <dev/pci/pcivar.h> 50 51 #include <dev/usb/usb.h> 52 #include <dev/usb/usbdi.h> 53 #include <dev/usb/usbdivar.h> 54 #include <dev/usb/usb_mem.h> 55 56 #include <dev/usb/uhcireg.h> 57 #include <dev/usb/uhcivar.h> 58 59 int uhci_pci_match __P((struct device *, struct cfdata *, void *)); 60 void uhci_pci_attach __P((struct device *, struct device *, void *)); 61 62 struct cfattach uhci_pci_ca = { 63 sizeof(uhci_softc_t), uhci_pci_match, uhci_pci_attach 64 }; 65 66 int 67 uhci_pci_match(parent, match, aux) 68 struct device *parent; 69 struct cfdata *match; 70 void *aux; 71 { 72 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 73 74 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 75 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 76 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_UHCI) 77 return 1; 78 79 return 0; 80 } 81 82 void 83 uhci_pci_attach(parent, self, aux) 84 struct device *parent; 85 struct device *self; 86 void *aux; 87 { 88 uhci_softc_t *sc = (uhci_softc_t *)self; 89 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 90 pci_chipset_tag_t pc = pa->pa_pc; 91 char const *intrstr; 92 pci_intr_handle_t ih; 93 pcireg_t csr; 94 char *typestr, *vendor; 95 char devinfo[256]; 96 usbd_status r; 97 98 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 99 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 100 101 /* Map I/O registers */ 102 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 103 &sc->iot, &sc->ioh, NULL, NULL)) { 104 printf("%s: can't map i/o space\n", sc->sc_bus.bdev.dv_xname); 105 return; 106 } 107 108 sc->sc_dmatag = pa->pa_dmat; 109 110 /* Enable the device. */ 111 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 112 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 113 csr | PCI_COMMAND_MASTER_ENABLE); 114 115 /* Map and establish the interrupt. */ 116 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 117 pa->pa_intrline, &ih)) { 118 printf("%s: couldn't map interrupt\n", 119 sc->sc_bus.bdev.dv_xname); 120 return; 121 } 122 intrstr = pci_intr_string(pc, ih); 123 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, uhci_intr, sc); 124 if (sc->sc_ih == NULL) { 125 printf("%s: couldn't establish interrupt", 126 sc->sc_bus.bdev.dv_xname); 127 if (intrstr != NULL) 128 printf(" at %s", intrstr); 129 printf("\n"); 130 return; 131 } 132 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 133 134 switch(pci_conf_read(pc, pa->pa_tag, PCI_USBREV) & PCI_USBREV_MASK) { 135 case PCI_USBREV_PRE_1_0: 136 typestr = "pre 1.0"; 137 break; 138 case PCI_USBREV_1_0: 139 typestr = "1.0"; 140 break; 141 default: 142 typestr = "unknown"; 143 break; 144 } 145 printf("%s: USB version %s\n", sc->sc_bus.bdev.dv_xname, typestr); 146 147 /* Figure out vendor for root hub descriptor. */ 148 vendor = pci_findvendor(pa->pa_id); 149 if (vendor) 150 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor)); 151 else 152 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 153 154 r = uhci_init(sc); 155 if (r != USBD_NORMAL_COMPLETION) { 156 printf("%s: init failed, error=%d\n", 157 sc->sc_bus.bdev.dv_xname, r); 158 return; 159 } 160 161 /* Attach usb device. */ 162 config_found((void *)sc, &sc->sc_bus, usbctlprint); 163 } 164